Improvements in and relating to Elevators.
Year: 1899

page_text: Date of Application, 17th Jan., 1899-Accepted, 11th Mar., 1899
COMPLETE SPECIFICATION.
Improvements in and relating to Elevators.
I, CHARLES DAVID SEEBERGER, of 1827, Michigan Avenue, Chicago, County of
Cook, and State of Illinois, United States of America, Gentleman, do hereby
declare the nature of this invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained, in and by the following
statement:
As is well known, it has been the usual practice to give a vertically recipro-
cating and an intermittent movement to the carrying device; that is, the said
carrying device the elevator cage, is alternately raised and lowered, in a suitable
shaft or well, stopping at each end of its course, and at intermediate points, if
desired. Such an arrangement has necessarily two principal defects: First, the
elevator is operative at any given moment for carrying purposes only at that
point where the cage happens to be at that moment; throughout the rest of the
length of the shaft or well the elevator is not available at that moment; at every
such moment, and at all times therefore, such an elevator is operative and avail-
able only to a very limited extent as compared with the space occupied by the
mechanism; second, the continual necessary stopping of such an elevator, includ-
ing the slowing down before and the gradual starting after each stop, the opening
and closing of the door, and the exit and entrance of passengers, usually consumes
several times the time occupied by the actual transit of the cage, and constitutes
a still further and greater limitation upon the capacity of this type of elevator.
Another type of elevating mechanism which has been devised, but has not, so
far as I am aware, been put in use, consists of an endless series of inter-connected
trucks or steps which remain horizontal whether moving horizontally or on an
incline, in the nature of a moving stairway and moving platforms. But in every
such prior construction of which I am aware, there has always been a large pro-
portion of the elevating mechanism not available for carrying purposes: over part
of their travel the trucks or steps are necessarily out of use. It is the object of
my invention to avoid these defects which must exist in all cases where elevators
of either type are employed, and which defects are particularly conspicuous in the
large department stores where it is desirable to transport a considerable mass of
people from one floor to another. To obtain this object, I have devised an elevat-
ing mechanism that is continuous both in construction and in function: at every
point along its extent this mechanism is available and operative for carrying pur-
poses; and its movement is continuous and uninterrupted.
My invention further relates to elevating apparatus of the class described, in
which certain features of construction are employed, said features consisting
mainly of the use of curves in the ways or tracks, by which I enabled to con-
struct my elevating apparatus very compactly as regards to the space occupied
thereby, and at the same time by availing myself of all the possible carrying sur-
face of the stairway to transport a large number of persons by using a compara-
tively small structure.
It will be obvious that the broad principle of my invention may be employed in

page_text: practice in many and various forms; I shall limit the following description, how-
ever, and the drawings illustrative thereof, to one specific arrangement: without
intending to imply, nevertheless, that my invention is thus restricted.
Fig. 1 is a plan view of my elevator.
Fig. 2 is an elevation in the direction of the arrow 2-2 of Fig. 1.
Fig. 3 is a plan of an ascending or descending portion of the elevator, showing
the wainscoting hoods and hand-1ails.
Fig. 4 is a detail view of the mechanism for supplying the power.
Fig. 5 is an elevation of two ascending or descending portions of my elevator,
with parts thereof broken away, showing devices for transmitting power.
Fig. 6 is a plan of a portion of my elevator where it is taken at a point where
its ascent commences, the upper parts of the track casings being removed to show
the tracks and chain-bars.
Fig. 7 is a vertical section along the line 7-7, Fig. 6.
Fig. 8 is an enlarged detail view of the mechanism for varying the length of
the chain-bars.
Fig. 9 is a vertical section on the line 9-9 of Fig. 8.
Fig. 10 is a detail view in horizontal section of the attachment of the chain-
bars to the moving steps of the elevator.
Fig. 11 is a vertical, longitudinal section on the line 11-11, Fig. 6.
Fig. 12 is a vertical cross-section on the line 12-12, Fig. 11.
Fig. 13 is an elevation of a portion of the mechanism for operating the wains
coting and the hand-rail, with a portion of the hood covering the same, removed,
being a section on the line 13-13 of Fig. 14.
Fig. 14 is a vertical section on the line 14-14 of Fig. 13.
Fig. 15 is an elevation of one of the panels of which the wainscoting is
composed.
Fig. 16 is a section along the line 16-16, Fig. 15.
Fig. 17 is a horizontal section along the line 17-17, of Fig. 14, showing the
attachment of the hand-rail.
Fig. 18 is a plan of a portion of one of the moving steps or platforms, showing
the mechanism for adjusting the nosing of the said step.
Fig. 19 is a side elevation of such a step, a part of which is broken away and
shown in vertical section.
Fig. 20 i
·
diagrammatic view of the operation of the several tracks and rollers
at the several points of the commencement of the ascent of my elevator.
Fig. 21 is a perspective of one of the steps or platforms, showing the mat and
hand-rail with which I may provide the same.
Fig. 22 is a detail view of the lower part of one of the hoods shown in Fig. 5,
looked at from the elevator side.
Fig. 23 is a plan of devices and arrangements for the admission to and exit
from the elevator.
Fig. 24 is a vertical section on a larger scale of one of the turnstiles for con-
trolling admission to the elevator.
Fig. 25 is a detail plan view of the turnstile arms on line 25-25 of Fig. 24.
Fig. 26 is a front elevation of the wainscoting shown in Fig. 23.
Referring now to the drawings, Figs. 1 and 2 show more or less diagrammatic
views of my elevator as a whole, the former in plan, the latter in elevation in
the direction of the arrow 2-2 in the former.
To explain the direction of the movement of the elevator at the different points
of its course as exhibited in these figures, we may suppose that it is boarded by a
passenger at the point 1, where it is traveling horizontally along the lowest floor
shown, which may be called the first floor. The passenger is carried a short di -
tance horizontally to the point 2; here the ascent gins, represented by the
curve, 2-, at the last of which points he reaches the second floor. He is
now carried horizontally over the second floor along the curve, 5-678, which
does not appear in Fig. 2, since it is on the same level with and behind the

page_text: At 14
curved portion, 17-18-19-20, hereinafter referred to. At the point 8 the
ascent from the second to the third floor commences, represented by the
curve 8-9-10-11; at the point 11, the passenger reaches the third floor, and is
carried horizontally over the same along the curve 11--12-13—14.
begins the descent to the second floor, represented by the curve 14-15-16–17;
from the point 17, the passenger is transported horizontally over the second floor,
along the curve 17-18-19-20, this curve being inside of and parallel with the
curve 5-6-7-8, hereinabove described. From the point 20 the descent to the
first floor commences, and is represented by the curve 20-21-22-23; at the
point 23 the passenger reaches the first floor again, and is carried along the hori-
zontal curve 23-24, etc., back to the original starting point, 1. This
curve 23-24-1-2, being in great part vertically underneath the third story
curve 11-12-13-14, is represented in dotted lines, chiefly in Fig. 1.
arrows in the two figures are placed in corresponding positions, and indicate the
directions of the movement above described.
The
In practice it is not to be presumed that passengers will make the continuous
trip above outlined. Persons upon the first floor, desiring to ascend, will board
the elevator somewhere along the curve 23-24-1-2, and will be carried upward
to the second floor; those who wish to get off there, will do so; those wishing to
ascend to the third floor, will remain upon the elevator, or will board the same
somewhere along the curve 5-6-7-8, and will be carried upward to the third
floor. The same principle will prevail as to the decent portions of my elevator.
The elevator will be moved preferably at a speed of about two miles per hour.
A passenger will find no difficulty, therefore, in stepping upon or off from one
of the component steps or platforms of the elevator where the said steps are
moving in horizontal direction. The said steps remain severally and individually
horizontal during both the ascent and descent of the elevator: it is not intended,
In order
however, that passengers shall enter or leave the elevator at such points.
to insure the passenger's being in the right position for the ascent or descent upon
a step or platform, the top or tread, A, of each step may be provided with a
mat, A, as shown in Fig. 21, to indicate the space upon which the passenger
should stand. To prevent the possibility of the passenger's falling during the
transit, the said step may be provided with a supporting device, A2, which may
consist of a single post, a, or of two such posts and a rail, a', as shown in Fig. 21,
or of any other convenient device of which the passenger can take hold.
go further and construct upon each of the steps or platforms of my elevator, one
or more seats adapted to hold one or more persons; this modification I have not
thought necessary to illustrate.
I may
I shall now describe the construction and interconnection of the individual
steps or platforms which constitute my devator: particular reference being had to
Figs. 11 and 12: Each step or platform comprises a horizontal portion or tread A,
upon the forward and rearward ends of which are formed nosings, A3, the par-
ticular constructions of which will be later described. At each of the said ends
of the platform, in downwardly projecting lugs, a', is pivoted the upper end of a
vertical piece, A, which corresponds to that part of a stair called the "rise."
It will be obvious that when the elevator ascends, the rearward of the two parts A+
upon each platform will be exposed and operative: when the elevator descends,
the forward of the said two parts upon each step will be exposed and operative.
A spring, a, may he arranged in any convenient manner to exert its tension upon
the part A, and cause the lower end of the same when exposed, as above
described, to bear against the nosing of the adjacent step or platform.
Two bars, B-B, extend longitudinally along the bottom of A; at each end
of each of the said bars is secured a bracket, B₁, in the lower part of which is
formed a bearing, b, for an axle, B2, upon the ends of which axle are mounted
the forward wheels, B, and the rearward wheel, B. At the center of each of
the bars B is secured a further bracket, C, in the lower end of each of which is
formed a bearing, c, for an axle-bar C¹. To each of the ends of the axle-bar ("

page_text: is secured a casting consisting of two sleeves, C and C+, connected by an offset
portion, C In each outer sleeve C is secured an axle, C, shown in Fig. 10.
Upon this axle, and next to the sleeve (", is mounted the roller C, which is
preferably provided with ball-bearings. A washer, c is secured upon the axle
next to the roller, C, and holds the same in position. Next to c, upon the said
axle, is secured the tooth-shaped part, ², which forms one of the teeth, 11, of the
sprocket chain.
Next to, upon the same axle, is mounted the chain-bar
attachment piece, (7, which comprises two perforated ears, c³, the said piece (7
being threaded upon, and pivotally connected with the said axle by means of
these perforations; and its swivel portion, et, upon which is swivelled one end of
the chain-bar D. A second chain-bar attachment piece, CS, comprises a per-
forated ear, c³, which is threaded upon the axle C5, between the two cars e,
just described; and a screw-threaded portion, e, which is screwed into the end of
ancther chain-bar, D. In this way each two adjacent chain-bars are connected
together, and are connected to one of the steps or platforms. Upon the extreme
end of the axle ( is rigidly attached the cap-piece, c', which also is tooth-shaped
to correspond with the opposite part 2, and thus form teeth, D'D', similar to
those mounted upon the chain-bars, 12. The sprocket-chain, through which
movement is supplied to my elevator, consists of chain-bars D, attached to each
other and to the moving platforms, as just described. Each bar Dis four-
sided upon each of the four sides are mounted teeth; those teeth upon the sides
normally vertical, being lettered D2 those upon the sides normally horizontal,
being lettered D³. The power-supplying mechanism may preferably be located at
the head of each ascending portion of the elevator, as shown in Fig. 5; the
several mechanisms may be connected by shafting, as there shown, or the power
may be distributed to the said mechanisms, in other and obvious ways. In the
construction I have illustrated in the drawings, the vertical shafts, E, are
mounted within the columns, E¹; the upper end of the shaft carries a bevel-
gear, 2, which meshes with a second bevel-gear, E3, as is shown particularly in
Fig. 4. The gear wheel is keyed upon a shaft, E, upon which is also secured
the sprocket-wheel, E. The sprocket-wheel E is constructed with two annular
ribs, e--e, extending around the edges of the perimeter of the same, each of the
said ribs carrying the oppositely disposed teeth, ele. As the sprocket-wheel
engages with the sprocket-chain, the teeth of the sprocket-wheel
bear against the teeth D2 D2 of the chain-bar, while the lower teeth D³ of the
chain-bar pass without engagement through the space between the annular ribs e
of the sprocket-wheel; only those teeth of the chain-bar, therefore, are operative
which are mounted upon the vertical sides of the chain-bar, when it engages with
the sprocket-wheel.
Theoretically, my elevator might be formed of two perfect circles of different
diameters, internally tangent, one to the other, when looked upon from above, as
in Fig. 1; and such is the apparent construction shown in the plan view of the
said figure. In practice, however, unless these circles be considerably larger than
it will generally be desirable and convenient to construct them, it will be neces-
sary, in order to allow head-room along the ascending portion 2-3-4-5, and
the descending portion 20-21-22-23, to form the outer circle shown in Fig. 1,
not as a perfect circle, merely larger in diameter than the inner circle there
shown, but as a compound circle or curve: that is, the inner circle, in Fig. 1, is
drawn from the point 25 as a center, with a constant radius, which may be
elled Z. Of the outer circle, the curve between X on the first floor and X',
and between X and X on the third floor, in all 120°, is drawn from the point 27
as a center, and with a radius larger than Z, which may be called Z; the curve
between X and X2, 60°, is drawn from the point 26 as a center and with a radius
equal to Z, again; the curve between X and X³, 120°, is drawn from 25 as a
center, and with a radius equal to 7; the curve between X3 and X, 60°, is drawn
from the point 28 as a center, and with a radius equal to Z.

page_text: Now, if the elevator were to travel continually along the same circle, or along
circles of the same diameter, the chain-bars on the outer side of the moving plat-
forms would be longer than those on the inner side, but would bear a fixed and
constant proportion thereto; this proportion varying inversely as the distance of
the inside and outside of the platform from the center of the said circle or circles.
If, however, the elevator has to travel during part of its course along a circle of
a given radius, and during another part of its course along a circle of a greater
radius, which would be the case in the construction exhibited in Fig. 1, if the
outer circle there shown be considered a perfect circle, then that proportion
between the length of the outer chain-bars and the inner chain-bars, which would
be adapted for the smaller circle, would not be adapted for the larger circle; each
outer chain-bar would have to be reduced to a length more nearly approaching
that of the corresponding inner chain-bar; since, if the outer circle were made
infinitely great, the outer and inner chain-bars would be of the same length. In
the case of such a construction, it would be necessary to arrange, at the point X,
some device by which the length of the outer chain-bars could be decreased, or,
what is the same thing, the length of the inner chain-bars be increased; as at
this point the circle would commence to expand. Also at the point X³, vertically
above the said point X, it would be necessary to arrange a similar mechanism
for making a change of the reverse character. Inasmuch, however, as the outer
circle shown in Fig. 1, in its practical construction, is a compound circle, as
explained hereinabove, it will be necessary to employ four further mechanisms
such as those just referred to: one at X', to adapt the chain-bars to the sharper
curve between that point and X2: another at X², to restore the relative lengths of
the chain-bars as they stood before reaching the point X'; a third at X", like that
at X; and a fourth at X, like that at X. The two original mechanisms, one
at X on the first floor, another at X upon the third floor and vertically above the
first, have been already referred to.
The
The mechanism which I employ for effecting these changes in the length of the
chain-bars, is illustrated particularly in Figs. 8 and 9. A sprocket-wheel, F,
is mounted just beyond the point at which it is desired to effect this change, in
such a
position that its teeth, f, will engage with the teeth DD of the chain-
bars, which teeth D3-D, as shown in Fig. 8, are upon the sides of the chain-
bars D, which at this point are vertical, as will presently be explained.
sprocket-wheel F is thus rotated by the passage of the successive chain-bars, and
thereby rotates the shaft, F1, upon which it is mounted. Upon the shaft Fis
mounted the bevel-gear, Fe, which meshes with the bevel-pinion, 13, mounted
upon a counter-shaft, F Upon the other end of the counter-shaft, F, is
mounted the pinion, F5, of an elongated form, as shown in Fig. 8, each of the
teeth F, of which will engage with a determined number of the teeth 13 of the
chain-bars, thereby rotating the chain-bar in a plane perpendicular to that of
its length and of the direction of its movement. Now, it has been seen that one
end of each chain-bar has a swivelled attachment; the opposite end has a screw-
threaded attachment. The effect of such rotation, therefore, will be to lengthen
or shorten the screw-threaded attachment according to the direction in which the
screw-thread runs. Supposing, therefore, that at the point considered, it be
desired to adapt the proportion of the chain-bars to the beginning of a smaller
circle, by lengthening the outer chain-bar, this mechanism would be so arranged
that the screw-threaded attachment of each outer chain-bar would be partially
unscrewed as the chain-bars passed in succession, this mechanism. It will of
couise be necessary to place the sprocket-wheel and the pinion F5 at such a
distance apart that the two will not be in contact at any time with the same
chain-bar which I have indicated by breaking away part of the shaft F, Fig. S.
If the pairs of teeth 102, and the pairs of teeth D, were opposite each other
upon the chain-bars, it would result from this lengthening of the screw-threaded
attachment, that the teeth nearest to the said attachment would be at a greater

page_text: distance from the teeth I than would the adjacent teeth upon the next chain-bar,
or than any two adjacent pairs of teeth upon the same chain-bar from each other.
This discrepancy might in some cases cause unevenness in the running of my
apparatus at those points where the chain-bars thus lengthened are engaged by
the sprocket-wheels which supply power thereto. To remedy this, I divide up
this discrepancy between all the successive pairs of teeth upon each chain-bar, by
the arrangement which I shall now describe. Considering that chain-bar, the
upper and forward end of which is shown at the left-hand side of Fig. 8, it will
be seen that the pairs of opposite teeth 1, mounted upon the top and bottom of
the chain-bar, are slightly in advance of those pairs of teeth shown mounted upon
the side of the chain-bar at that point: the distance represented by this advance
is made in the case of the teeth adjacent to the point of connection with the
platform, equal to that amount by which it is found necessary to increase the
length of the chain-bar when the same is to be increased, as above described.
The next pair of teeth D³ are placed a less distance in advance of the corre-
sponding teeth D2; the third pair, a still less distance; and so on, until the last
pair of teeth D3, next to the swivelled end of the chain-bar, are approximately
opposite the corresponding teeth 12. In order to illustrate the operation of this
mechanism, we may suppose that the necessary increase of length of each chain-
bar is three-tenths of an inch, and that the pitch of the screw-thread attach-
ment C is one-tenth of an inch, approximately. The sprocket-wheel F, the
so constructed that
bevel gear F2 and bevel-pinion F3, will in such a case be
the passage of one chain-bar will so operate the sprocket-wheel as to revolve
the pinion I sufficiently to cause the chain-bar, with which it contacts, to make
three and a quarter rotations, and to leave the teeth D³ upon the vertical sides
of the chain-bar, while the teeth D2 will be on the top and bottom thereof. Now,
by the construction of the teeth I³ with relation to the teeth D2, this increase of
length of the chain-bar is divided up among all the intervals between the
teeth 1, so that each interval will be increased one-tenth of the whole three-
tentns inch increase of the length of the chain-bar, as compared with the intervals.
between the teeth D. The chain-bar, a portion of which is shown at the right-
hand side of Fig. 8, is represented as having thus been rotated, bringing the
teeth D into operative position on the vertical sides of the bar, while the teeth D³
are now on the top and bottom thereof. The sprocket-wheels which supply power
to the outside sprocket-chains, will be formed to fit whichever set of teeth 13
or D' are in operative position at the points where power is supplied.
The tracks for my elevator, I form preferably as follows: 'pon each side of
the elevator I construct a casing, (i, forming in cross-section three sides of a
rectangle, opening inward, the three sides being respectively the top, G', the
vertical side, 62, and the bottom, (1, as shown particularly in Fig. 12. Upon
the bottom (3, and near the inner edge thereof, is placed a flange or rib, g, by
which there is formed a track, g¹, on each side of the elevator, adapted to receive
Where the
the wheels 133 and 13 when the elevator is running horizontally.
elevator is so traveling horizontally, the rollers C are not operative. As each
platform, however, comes into the position shown on the left-hand side of Fig. 11,
where it commences its ascent, there is arranged in each of the casings G, a
roller-track, H, supported by the bracket, H¹, secured to the track-casing by the
flange H². These tracks H are arranged in such a position, and at such an angle,
that, as the wheels B move up the ascending portion of the track g¹, the
rollers (6 will travel upon the track H, whereby the step or platform continues to
retain a horizontal position, the rear-wheels B becoming for the time inoperative.
This position of one of the steps is shown in the diagrammatic view in Fig. 20.
A bracket, I, carrying a flange along its upper edge is bolted to the top of the
casing ; to the lower edge of the bracket is secured a track, I. This bracket
and track are so constructed that, as the platform continues its ascent, the rear
wheels B enter upon and travel upon the said track I³. At this point the sup-

page_text: port of the rollers Ce becomes unnecessary, and their tracks H are therefore dis-
continued, as shown at h, whereby the rollers Co become again inoperative. I
prefer to discontinue the tracks H immediately after the rear wheels enter upon
and travel upon the track I2, not only because the additional friction of the
rollers C is a waste of energy, but also because the employment of three distinct
rollers at each end to furnish a bearing while moving on the inclined portions
would tend to make the step unstable if there should be the slightest variation in the
relation of the three tracks with which the two wheels and the rollers co-operate.
On account of the extension of the axle (" beyond the planes of the wheels B³
and B, it becomes necessary to employ the offset portions (3 in said axles pre-
viously referred to, in order to prevent any interference between the track 12
and the axle C¹, which interference would occur when traveling on the inclined
portions of the tracks, unless the portions of the axle ("directly beneath the
tracks I were offset as shown.
As is shown in Fig. 20, when the platform has just commenced its ascent,
before the rear wheels B have entered upon the tracks I, there might be a
tendency for the rear end of the step to tip downwards. This tendency is checked
by forming upon the lower side of the track I2, an upthrust track. I³, against
which the forward wheels B3 will immediately bear if there be such tendency of
the rear end of the step to tip downward with the axle (" as the pivotal point.
Another upthrust track is formed of a track proper, J. attached to the upper
side of the track-casing G¹ by the brackets J¹. This upthrust track is arranged
over the path of the rollers C, and along those portions of the elevator just
before the commencement of each ascent. In case, therefore, that there be any
tendency on the part of the step, before commencing its ascent, to be lifted by
the upward pull of the sprocket-chains, the roller C will contact with, and bear
against, the upthrust track J, and counteract such tendency.
At each point where the elevator commences an ascent and at each point where
it ends a descent it will be necessary to provide the track constructions herein.
above described. At each point where the elevator ends an ascent or commences
a descent it will be necessary to provide the said track constructions, with the
exception of the upthrust tracks J.
Along the sides of those parts of my elevator where it ascends or descends, I
find it desirable to provide something in the nature of a balustrade on the stair-
way, to afford protection and support to the passengers as they are transported
upward and downward. To this end I have devised, and I construct, an endless
wainscoting and hand-rail which travel upward or downward, according as the
elevator ascends or descends, upon each side of the elevator and in close proximity
thereto. Figs. 3 and 5 show general views of this construction: Figs. 13 to 17
inclusive show detail views thereof.
L-L are hoods or casings mounted above the track-casings G, and are opened
on the side toward the elevator. At the lower end of each hood is mounted a
sprocket-wheel, M. in such a position as to engage with, and be rotated by, the
sprocket-chains I), upon a shaft, M; the shaft M carries a gear-wheel, M²,
meshing with the gear-wheel M³, which, through the bevel-gears, m and m¹,
imparts movement to the shaft, M*, suitably journaled in an upright position
within the hood. The shaft M carries a V-pulley. N, which moves the endless
V-belt. N, the said belt passing about a similar pulley or shieve at the upper end
of the hood. The V-belt N is cut out at intervals, as at », and each of these
transverse grooves is provided with a staple, N3, in the manner shown in Fig. 16,
whereby a space, n', is left between the head of the staple and the belt. The
wainscoting is formed of a series of panels, O. of the shape shown particularly
in Fig. 15 o-01, 03-0³ forming the vertical sides thereof. 3 being the hori-
zontal bottom edge thereof, and being the upper and slanting edge of the
said panel (), the slant being the same as the angle of ascent or descent of the
elevator. The inside of each of the panels 0 is provided with two vertical

page_text: strips, 0-0¹, which are threaded loosely in the spaces n¹ formed in the belt X',
as herein before described. Further, each of the panels is provided on its inner
side with one or more brackets, P, each carrying a roller, P1; the track upon
which the said rollers bear being most conveniently formed upon the top G¹ of the
track-casing G.
There is formed along the upper part of, and within the hood, a frame-work
comprising an upper flat bar, Q, and a lower one, Q', the two being connected
together and spaced by the posts, Q2; this frame-work, as a whole, may be sup-
ported from the track-casing. From the bottom of Q extend downward two ribs
or flanges. 9: from the top of Q' extend upward two corresponding ribs or
flanges, these ribs q-q form slotted guides or tracks adapted to receive the
rollers, R. The rollers R are secured upon the sprocket chain, R', which is moved
by the sprocket-wheel, R2, mounted upon the top of the shaft M. Each roller R
is attached by a bracket, R³, to one of the panels 0, and thus forms a support
and guide for the upper part of the panel, as does the roller P for the lower part
thereof. To each of the brackets R³ is pivoted an arm, S, the outer end of which
carries a ring, through the rings S' is threaded an endless cord or hand-
rail, S. The hand-rail S2 passes out from within the hood on the side next to
The
the elevator, through the aperture S³, in the hood, shown in Fig. 22.
operation of these devices is apparent from the above description of their con-
struction. To suppose, for the sake of illustration, that the Figs. 13 and 14 of
the drawings show the lower end of the hood at a point where the elevator com-
mences to ascend, the shaft M* will revolve in such direction that the panels are
carried downward when in the position shown in Fig. 13; will pass around the
shaft, at the lower end of the hood, and move upward in close proximity with the
upward moving elevator, and at the same rate of speed therewith. The object
of pivoting the arms S upon the brackets Re, is to permit the said arms to swing
upward when the panels pass around the mechanismi at the lower end of the hood,
and thus avoid the straining or stretching of the hand-rail, which would other-
wise (nsue.
The panels are preferably made of some flexible material, to
permit their passing around the said mechanism at the lower end of the hood.
The said panels are so shaped and mounted, that, as they descend upon that side
will stand in some
away from the elevator, their upper diagonal edges
such relation to each other as shown in Fig. 13; when, however, the panels com-
mence their ascent upon that side in proximity to the elevator, the edges o
will form a continuous straight line parallel to the angle of ascent of the elevator,
as shown in Fig. 22; this change of position of the panels with reference to each
other being permitted by their sliding attachment to the supporting V-belt.
()
03
By this construction it will be obvious that the passenger will always have the
support of a hand-rail during his ascent or descent: and should such passenger
fall, he will be prevented by the wainscoting from falling off from the elevator,
and the movement of the wainscoting will prevent his being in any way caught
thereby, as might be the case with a motionless balustrading.
I have in my description of the individual steps, referred to a nosing A³ at
the front and rear ends of each step or platform. This nosing is preferably con-
structed so as to be elastic, in order that it may prevent the formation of spaces
or cracks between the adjacent steps when the elevator changes its course from one
of the larger circles, hereinabove described, to a smaller circle. Such elasticity
on the part of the nosing may be had by constructing the nosing of some elastic
material, such as rubber. I may find it preferable in practice, however, to pro-
vide a positive adjustment to adapt the nosing to the changes in relative position
of the adjoining steps; and one form of such positive adjustment I have illus-
trated in the drawings. Toward the middle of the under side of each step or
platform is mounted a short upright shaft, T, in any suitable manner; the lower
end of which shaft carries a toothed wheel, T¹, so placed as to engage with a
toothed rack, T2, secured to the track g, at those points where it is desirable to

page_text: effect the adjustment of the nosing. The upper end of the shaft T is provided
with a small toothed pinion, Ts, which engages with the sliding toothed bars, T,
held within the guides, T, upon the bottom of the step. The outer edge, U,
of the nosing is rigidly attached to, or is made integral with, a flat plate, U¹,
pivoted under the edge of the step or platform at one end, as at U. The free
end of the plate U₁ is bolted to an enlargement, «, of the rod T, which enlarge-
ment is adapted to slide backward and forward in the guides, u¹. Between the
outer edge of the nosing U and the edge of the top of the step proper, are mounted
two or more spring-bars, V-, one end of each thereof being rigidly attached
as atv, the other ends being free to slide horizontally upon the pin, W, as
a guide, in such manner that they tend to divide up into equal spaces the distance
between the outer nosing U and the edge of the top of the platform. The whole
of this mechanism is so arranged that the adjustment of the nosing will adapt
itself to the changes in distance between the adjacent steps.
Between those two portions of my elevator which run horizontally and parallel
to each other upon the second floor, as shown in Fig. 1, I arrange a hand-rail, Y,
shown in Figs. 1 and 2.
In Fig. 23 I have shown in plan an arrangement of turnstiles for controlling
entrance to and exit from the elevator; and a device for compelling passengers
to have the elevator.
These devices, in case they be employed, will preferably be located at such a
point as X upon the first floor. The elevator at this point moves horizontally in
the direction indicated by the arrow in Fig. 28. At the said point X the hood L,
with its wainscoting and hand-rail, is curved outward, forming an angular pro-
jection, L', across the direction of travel of the elevator. As the passenger arrives
upon the first floor and approaches, from the right as shown in Fig. 23, this
barrier formed by the projection L', the said passenger is supposed to step from
the elevator onto the floor, 29. In case he does not so do, however, he is carried
forward against the said barrier; whereupon the resultant of the diagonal motion
of the wainscoting and the forward movement of the elevator will be to push the
Arrived upon the
passenger sideways from the said elevator upon the floor 29.
said floor, the passenger will leave the elevator by one of a series of exit turn-
stiles, 30, of ordinary construction, adapted to turn in but one direction indicated
by the arrows.
Entrance to the elevator is to take place through the passage-ways, 31, formed
and separated from each other by the railings, 32. At the entrance to each pas-
sage-way is stationed a turnstile, 33, which consists of a vertical shaft, 34,
mounted in suitable bearings, one of which, 35, is located below the floor, the
other, 36, upon the floor. Upon the upper end of the shaft 34, which may extend
from three to four feet above the floor, is mounted a collar, 37, to which are
pivoted, to move in vertical planes, the arms 38 preferably four in number. A
hollow column, 39, surrounds that portion of the shaft 34 which extends above
the floor, and is provided at its upper end with a cam device, 40 which lies
The cam 40, commencing with
directly underneath and close to the collar 37.
the vertical edge, is cut away abruptly at 41 and is sloped outward again to its
original edge at 42. Mounted upon the upper end of the shaft 34, and extending
construct a hemispherical hood, 43,
downward to cover the collar 37 and cam +0,
provided with slots, 44, opposite to the arms 38, and adapted to permit the arms
to rise upward to a horizontal position.
From this description of the construction, it will be apparent that as the
shaft 34 is turned in the direction of the arrow of Fig. 25, each of the arms 38 will
drop into a vertical position when it reaches the point 41, and will be brought
upward again into a horizontal position as it passes over the part 42 of the cam 40.
This construction is economical of space and permits the arrangement of the pas-
sages 31 close together and side by side.
That portion of the floor at the end of each passage-way 31 nearest to the elevator

page_text: is constructed in the form of a pivoted float or trap, 45, hinged to the floor proper
at the points, 46, upon one of its edges. To the bottom of the float 45 I attach
a bracket, 47, to which is pivoted one end of a lever, 48; the said lever is
pivotally supported upon the post, 49, and its remaining end is pivoted to one
ind of the bell-crank lever 50. The said bell-crank lever 50 is pivotally supported
trom the bracket 51; its remaining end is pivotally connected to the bar, 52,
which is adapted to slide back and forth horizontally in the guides, 53. This
sliding bar 53 is provided at its ends with downwardly projecting forked arms, 54
and 55. The forked arm 54 engages with a sleeve, 56, which is made integral
with, or rigidly adapted to, the bevel-gear, 57. The said sleeve 50 and gear 57
are keyed upon the shaft, 58, and at the same time are adapted to slide horizon-
tally upon the said shaft while remaining so keyed thereto. The horizontal
shaft 58 is mounted in suitable bearings, 59, and on its end opposite to that which
carries the gear 57 is mounted the sprocket wheel, 60, which lies in the path of
and is adapted to be rotated by the passage of the chain-bars, D.
The downwardly projecting forked arm 55 engages with the sleeve, 61, to which
is attached the bevel-gear, 62, the said sleeve and gear being loosely mounted
upon the stub axle, 63. I preferably adapt the said gear 62 to rotate in only
one direction upon the said axle by means of a pawl 65 and ratchet device 66, or
any equivalent construction.
The vertical turnstile shaft 34 carries, near its lower bearing, a bevel-gear, 64,
adapted to mesh with the gear 57, or with the gear 62 according to with which
one the said gear 64 is in engagement.
The operation of these devices is as follows. When there is no weight upon the
float 45 the gear 57 engages with the gear 64; and the turnstile shaft 34 with its
armis is rotated by the movement of the elevator. When a passenger passes
through the rotating turnstile 33 and steps upon the floor 45, the downward inove-
ment of the float throws the gear 57 out of engagement with the gear 64 and
brings the gear 62 into engagement with the said gear 64. The turnstile there-
upon ceases to rotate; moreover, by the pawl and ratchet device attached to the
gear 62, the turnstile is locked against any further rotation in the same direction.
Inasmuch, however, as the gear 62 is free to turn one way, the turnstile can be
rotated in a direction opposite to that of its normal movement by a passenger who
has once entered, but wishes to return without going upon the elevator.
The float 45 is provided with any convenient spring device which will restore
it to its normal position when not carrying any weight. In some cases I may
find it desirable to give to the aid spring device such tension that it will require
the weight of two intending passengers instead of the weight of
but one, to depress the float and throw the gear 57 out of engagement
with the gear 64. This construction may be adopted when the platforms, A, are
dapted to the accommodation of two passengers each. The said spring device
for restoring the float to its normal position and recommencing the rotation of the
turnstile is constructed to operate in combination with a dash-pot, or other
equivalent device, which will be so regulated that the passenger who wishes to
return through the turnstile without going upon the elevator will be given suffi-
cient time for so doing before the turnstile recommences its rotation as aforesaid.
To illustrate the construction last above described. I show in Fig. 24 a dash-
pot 67, surrounded by a coiled compression spring 68, the upper end of which is
attached to the piston 69 of the dash-pot. The said piston 69 is pivoted to the
lever 48 above described.
It will be evident from a consideration of the mode of operation of the above
mentioned turnstiles controlling the entrance to the elevator that they are
d signed to act synchronously, as it were. with the traveling surface of the eleva-
tur, or other conveying apparatus, so as to prevent the crowding upon the convey-
ing apparatus of more than a certain number of passengers, a feature which is

page_text: evidently very desirable, and I desire to claim such a construction broadly, with-
out any limitation as to the exact form of mechanism or construction to be
employed therein.
The passages 31 are arranged, as shown in Fig. 23, obliquely to the direction
of movement of the elevator at that point: this arrangement is for the purpose
of causing the passenger to have a movement in the same direction as the move-
ment of the elevator, and of approximately the same speed, at the point where
he enters upon the elevator.
The preceding description, and the accompanying drawings illustrating the
same are restricted to one specific form of construction for embodying the prin-
ciples of my invention, which, however, may be varied in many ways.
Having now particularly described and ascertained the nature of this
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. As an elevating apparatus, endless circular tracks which have the form of a
double-spiral comprising two or more endless curves when projected on a hori-
zontal plane, the said tracks through part of their length being horizontal,
through part inclined; an endless series of interconnected platforms adapted to
move along the said tracks; means for moving the said platforms; and devices
adapted to keep the said platforms in a horizontal position throughout their
movement.
2. As an elevating apparatus, endless circular tracks extending horizontally on
a certain level, ascending to a second level, extending horizontally thereon, ascend-
ing to a third level, extending, horizontally thereon, descending to the said second
level, again extending horizontally thereon, descending to the said first level,
and extending horizontally thereon to the starting point, the whole
forming a double spiral, the one circle of which in horizontal
projection lies within the other; an endless series of interconnected platforms
adapted to move along the said tracks; and devices adapted to keep the said plat-
forms in a horizontal position throughout their movement.
3. In an elevating apparatus, an endless series of interconnected platforms, A,
provided with the wheels B3-13, and the rollers C tracks g through part of
their extent horizontal, and through part inclined, upon which the said wheels
are adapted to move; secondary inclined tracks, 12, mounted over the inclined
portions of the tracks gl; short guide tracks, H, adapted to receive the rollers C6
and guide the said wheels B upon the secondary tracks I, whereby the said plat-
forms remain severally horizontal throughout their movement; and means for
moving the said series of platforms.
4. In an elevating apparatus, an endless series of interconnected platforms pro-
vided with the wheels B and B and with the rollers C; tracks through part
of their extent horizontal, through part inclined, adapted to receive the said
wheels; secondary tracks, I2, mounted above the inclined portions of the tracks g₁;
short guide tracks, H, adapted to receive the rollers C and guide the wheels B
on to the tracks I2: upthrust tracks 13 against which the wheels B³ are adapted
to bear, located beyond the end of each ascent and before each descent of the
tracks and means for moving the said series of platforms.
5. In an elevating apparatus, an endless series of interconnected platforms pro-
vided with the wheels B³ and B, and with the rollers C: tracks g' through part
of their extent horizontal, through part inclined, adapted to receive the said
wheels; tracks 12 mounted above the inclined portions of the tracks, g¹: short
guide tracks. H. adapted to receive the rollers (, and guide the wheels B* on to
the tracks 12; upthrust tracks, J. against which the rollers are adapted to bear
located before the beginning of each ascent of the tracks and means for com-
municating movement to the said series of platforms.
6. In an elevating apparatus, an endless series of interconnected platforms pro-

page_text: vided with the wheels B³ and B4, and with the rollers C6; tracks g¹ through part
of their extent horizontal, through part inclined, adapted to receive the said
wheels tracks I mounted above the inclined portions of the tracks, g'; short
guide tracks, H, adapted to receive the rollers (, and guide the wheels B on to
the tracks I upthrust tracks, ), located before the beginning of each ascent of
the tracks, against which the wheels 13 are adapted to bear: upthrust
tracks, against which the wheels B are adapted to bear, located beyond the
end of each ascent and before each descent of the tracks: and means for commu-
nicating movement to the said series of platforms.
to
7. In an elevating apparatus, an endless series of interconnected platforms pro-
vided with the wheels 133-14, and with the axle-bar, C", offset connections ("), and
rollers C tracks gl adapted to receive the wheels 133-13, through part of their
extent horizontal, through part inclined; secondary tracks 12 mounted above the
inclined portions of the tracks g' guide tracks, H, adapted to receive the
rollers C, and guide the wheels B upon the secondary tracks 12: upthrust
tracks I projecting within the offset portions C3 of the roller supports, and adapted
bear against the wheels B3; and means for moving the said series of platforms.
8. In an elevating apparatus, an endless series of interconnected platforms, pro-
vided with the wheels B3-B34, and with the axle-bar C₁, offset connections (", and
rollers C, whereby the axles of the wheels and rollers may be brought in the
same horizontal plane on the inclined parts of the tracks : tracks gl adapted
to receive the wheels B and B, through part of their extent horizontal, through
part inclined; secondary tracks 12 mounted above the inclined portions of the
tracks guide tracks H adapted to receive the rollers C6 and guide the wheels B
upon the secondary tracks I2; and means for moving the said series of platforms.
9. In an elevating apparatus, an endless series of platforms, A, provided with
wheels, B3134: tracks, g', upon which the said wheels are adapted
to move, through part of their extent horizontal, through part
inclined secondary tracks 12 mounted above the inclined portions of
the tracks g devices adapted to guide the wheels B upon the tracks 12;
necting bars, D, pivoted at their opposite ends to centrally disposed supports
carried by the adjoining platforms; and means for moving the said series of
platforms.
con-
10. In an elevating apparatus of the general type described, the steps A; con-
meeting bars 1 pivotally secured at opposite ends to the adjacent platforms; and
means for moving the platforms.
11. In an elevating apparatus of the general type described. the platforms A:
the centrally disposed axle-bars ("; the chain bars D connecting the adjacent
platforms, and provided with teeth, and spreeket wheels adapted to engage with
the said teeth and communicate motion to said platforms.
12. In an elevating apparatus of the general type described, the platforms A;
the centrally disposed axle-bars C; the chain bars D pivotally connected there-
with, and provided with the teeth D2 and 13; and the sprocket wheels, E³, pro-
vided with the flanges, c, and teeth, e, adapted to engage with the said chain bars
and supply motion to the said platforms.
13. In an elevating apparatus of the general type described, the series of plat-
forms A; the chain bars I connecting the adjacent platforms; automatic means
for changing the length of the chain bars; and means for moving the platforms.
14. In an elevating apparatus of the general type described, the series of plat-
forms A adapted to move over two or more curves of different radii; chain bars D
connecting the adjacent platforms and on opposite sides thereof, the chain bars
uron one side of the said platforms being connected at one end by a swiveled
attent, at the other by a ser-thri ed attenunt: antomatic devices
adapted to rate the id chain hers and change the length ther of: and means
for moving the said series of platform.
15. In an elevating apparatus of the general type described, adapted to move

page_text: over two or more curves of different radii, the series of platforms A; the chain bars
D connecting the adjacent platforms and on opposite sides thereof,
those chain bars upon one side of the platforms A being each connected at one
end by a swiveled attachment, at the other by a screw-threaded attachment; pro-
jections mounted upon the sides of the said chain bars; a pinion, F³, adapted to
engage with the said projections and rotate the said chain bars: means for supply-
ing movement to the said pinion from the movement of the apparatus; and means
for moving the apparatus.
16. In an elevating apparatus of the general type described a series of plat-
forms A adapted to move over two or more curves of different radii; chain bars D
provided with teeth, D2, connecting the adjacent platforms and on opposite sides
thereof, the chain bars upon one side of the said platforms being each connected
at one end by a swiveled attachment, at the other by a screw-threaded attach-
ment; a pinion F adapted to engage with the said teeth 12 and rotate successively
the chain bars D); the sprocket wheel, F, adapted to engage with and be rotated
by successive chain bars 1); devices connecting the sprocket wheel with the
pinion F and means for supplying movement to the said elevating apparatus.
17. In an elevating apparatus of the general type described, a series of plat-
forms A adapted to move over two or more curves of different radii; the chain
bars I connecting the adjacent platforms and on opposite sides thereof, the chain
bars upon one side of the platforms being each connected at one end by a swiveled
attachment, at the other by a screw-threaded attachment: teeth, D2 and D³,
mounted upon the said chain bars, substantially as described: the sprocket
wheel, F, adapted to engage with and be rotated by the successive chain bars;
means for transmitting the movement of the sprocket wheel F to a pinion F;
the pinion F adapted to engage with and rotate the chain bars D; the sprocket
wheels, E, adapted to engage with the chain bars 1), and communicate motion to
the apparatus.
18. In an elevating apparatus substantially as described. the series of plat-
forms A chain bars D; teeth 1-12-13; the sprocket wheels ; the sprocket
wheels F the pinion ; connections between the said sprocket wheels F and the
said pinion F, constructed and operating substantially as described.
19. In an elevating apparatus of the general type described, the combination,
with a series of tracks or ways comprising horizontal and inclined portions, of
a series of movable steps co-operating with said ways and having their tread sur-
faces horizontal to form a continuous landing on the horizontal portions of the
tracks and a moving stairway on the inclined portions, the tread surfaces of the
steps each having a portion in the center of the step, but not extending to the
edges of the adjacent step, constructed differently from the rest of the tread sur-
face so as to make it evident to a person standing on the steps, when they form
a continuous landing, whether or not he is standing upon a single step or upon
more than one, substantially as and for the purpose specified.
20. In an elevating apparatus of the general type described, the combination,
with a series of tracks or ways comprising horizontal and inclined portions, of a
scries of movable steps co-operating with said ways and having their tread sur-
faces horizontal to form a continuous landing on the horizontal portions of the
tracks and a moving stairway on the inclined portions, the tread surfaces of
the steps each being provided with a raised mat A in the center of the step, but
not extending to the edges of the adjacent steps, so as to make a pronounced
depression between the adjacent steps when they form a continuous landing,
whereby the passenger will know whether or not he is standing upon a single
step, substantially as and for the purpose specified.
21. In an elevating apparatus of the general type described, the combination,
with a series of tracks or ways comprising horizontal and inclined portions, of a
series of movable steps co-operating with said ways and having their tread sur-
faces horizontal to form a continuous landing on the horizontal portions of the

page_text: tracks and a moving stairway on the inclined portions, and a rail A³ upon each
step adapted to afford support to a passenger standing upon the step, substan-
tially as and for the purpose described.
22. In an elevating apparatus of the general type described, the platforms A
provided with tread surfaces portions of each of which are expansible, for the
purpose specified.
23. In an elevating apparatus of the general type described, the platforms A
provided with expansible nosings A³, for the purpose specified.
24. In an elevating apparatus of the general type described, adapted to move
along curves of different radii, the platforms A; the adjustable nosings, A; and
automatic devices adapted to adjust the said nosings to fill the intervals between
the said platforms.
25. In an elevating apparatus substantially of the type described, the plat-
forms A the pivoted nosing plate, U-"; and automatic means for adjusting
the free end of the said plate to fill the interval between the adjacent platforms.
26. In an elevating apparatus of the type described, the platforms A; the
pivoted nosing plate, U-U; the rod, T; the tooth pinion, T3; the ratchet
wheel T and the stationary rack, T2, operating substantially in the manner and
for the purpose described.
27. In an elevating apparatus substantially of the type described, the plat-
forms A; the pivoted nosing-plate, U-U1; the spring bars, V-V1; and means
for adjusting the free end of the pivoted plate, operating substantially in the
manner and for the purpose described.
28. In an elevating apparatus of the general type described, the platforms A;
the risers A; and the springs, a¹, adapted to hold the said risers in contact with
the adjacent platforms.
29. In an elevating apparatus of the general type described, the platforms A;
the nosings, A; the pivoted risers, A and the springs, at, adapted to hold the
free edges of the risers in contact with the nosings, substantially as described.
30. In an elevating apparatus of the general type described, the platforms A:
the expansible nosings, A³; the risers, A4, pivotally attached at their upper edges
to the said platforms: and the springs, a, adapted to hold the lower and free
edges of the risers in contact with the expansible nosings of the adjacent platforms.
31. In an elevating apparatus, a series of platforms, A, in combination with
endless wainscotings at the sides of the said platforms but separate therefrom,
adapted to move with the said platforms along part of the travel of the said plat-
forms, in the general manner described.
32. In an elevating apparatus, a series of platforms adapted to move upon an
incline in combination with wainscotings adapted to move at the side of and at
the same rate of speed as the said platforms.
33. In an elevating apparatus, a series of platforms adapted to move upon an
incline a wainscoting adapted to move by the sides of and at the same rate as
the said platforms; and hand-rails carried by, and moving with the said wains-
coting.
34. In an elevating apparatus of the general type described, the hoods, L; the
traveling wainscoting, O; and the hand-rail, S2, operating in the general manner
and for the purpose described.
35. In an elevating apparatus of the general type described, a wainscoting
adapted to travel at the sides of the said apparatus along the inclined portions of
the same, the said wainscoting comprising an endless helt, N: a series of
panels, (), attached to the said belt; and pulleys N, adapted to support and move
the said belt.
36. In an elevating apparatus of the general type described, wainscotings
mounted at the sides of the inclined portions of the said apparatus, the said
wainscotings comprising the panels, the endless belt, N¹, vertically sliding
connections between the said panels and the said belt; guides, P₁, for the said
panels and pulleys, N, adapted to support and move the said belt.

page_text: 37. In an elevating apparatus of the general type described, the hoods, L, open
on the sides adjacent to the said apparatus; the endless wainscoting, O, adapted to
move with the said elevating apparatus, and return in a contrary direction within
and enclosed by the said hoods.
38. In an elevating apparatus of the general type described, a traveling wains-
coting comprising the shafts, M; the pulleys, N; the belt, N1; the panels, O;
vertically sliding connections between the said panels and the said belt;
rollers, 1"; tracks upon which the said rollers move; and means for communi-
cating motion to the said shaft, M, from the movement of the rest of the apparatus.
39. In an elevating apparatus of the general type described, the traveling hand-
rail device comprising the shafts, M4; means for communicating motion to the
said shafts from the movement of the rest of the apparatus; sprocket wheels_R³
carried by the said shaft; sprocket chain, R'; rollers attached to the said sprocket
chain; guides for the said rollers; arms carried by the said rollers; and an end-
less hand-rail, S2, carried by the said arms.
40. In an elevating apparatus of the general type described, the sprocket
wheels, M; the vertical shafts, M*; connections between said sprocket wheels and
said shafts; pulleys, N; the endless belt, N1; wainscoting panels, O; sprocket
wheels, R2; the sprocket chain, R'; rollers R; guides for the said rollers; and
the brackets, R3, connecting the said rollers and the wainscoting panels, 0, con-
structed substantially in the manner and for the purpose specified.
41. In an elevating apparatus, a series of moving platforms, A, in combination
with entrance passages, 31, arranged at an incline to the direction of movement
of the said conveying apparatus, substantially as described and for the purpose
specified.
42. In an elevating apparatus of the general type described, the turnstiles, 33,
adapted to control the admission of passengers; and devices for communicating
the movement of the conveying apparatus to rotate the said turnstiles.
43. In an apparatus of the class described, the continuously moving conveying
surface, with entrance mechanism operated automatically and synchronously there-
with to regulate the number of entrances in accordance with the capacity of the
conveying surface.
44. In an apparatus of the class described, the continuously moving conveying
surface, with a turnstile operated automatically and synchronously therewith to
regulate the number of passages in accordance with the capacity of the conveying
surface.
45. In an apparatus of the class described, the continuously moving conveying
surface, with a turnstile operated automatically and synchronously therewith by
the same source of power to regulate the number of passages in accordance with
the capacity of the conveying surface.
46. In an apparatus for conveying passengers of the general type described,
the passage-way, 31; the turn-tile, 33: the pivoted float, 45; devices for communi-
cating the movement of the conveying apparatus to rotate the said turnstile;
and devices connected to the float adapted to break the said communication when
the float is depressed.
47. In an apparatus for conveying passengers of the general type described, a
device for controlling entrance to the said apparatus comprising a rotating turn-
stile, 33, carrying a gear, 64: a shaft, 58, rotated by the movement of the
apparatus; a gear wheel, 57, adapted to slide upon and turn with the said shaft;
a pivoted float, 45; and devices connecting the said float with the said gear, 57,
adapted to throw it out of engagement with the gear, 64. when the said float is
depressed.
48. In an apparatus for conveying passengers of the general type described,
a device for controlling entrance to the said apparatus comprising the passage-
way, 31, a turnstile, 33; a float 45 held yieldingly in a normal position; a
shaft, 58: the gear wheel, 57, adapted to slide on and move with the id shaft ;
the gear wheel, 62, locked against rotation in one direction; the sliuing bar, 52,

page_text: connected with the gears 57 and 62; the gear wheel, 64, mounted upon the turn-
stile shaft; and lever devices connecting the said float with the said sliding bar, 52,
all constructed and operating substantially in the manner specified.
49. In a conveying, apparatus, a series of moving platforms A, connected to
move together, with horizontal and inclined ways for said platforms, in combina-
tion with a device for compelling the landing of passengers consisting of a
wainscoting O moving diagonally across the path of the platforms upon a hori-
zontal portion of the ways, substantially as and for the purpose described.
50. In a conveying apparatus, a series of moving platforms in combination
with a shunting device consisting of a wainscoting; and a hand-rail, S², moving
across the path of the said platforms at the point of exit, substantially as described.
51. In an elevating apparatus, a series of platforms having tread surfaces and
connections between said platforms to which the propelling power is applied
forming an endless carrier, with ways leading to and from different horizontal
planes, said ways being so constructed and arranged as to retain the platforms
with their tread surfaces uppermost throughout their movement.
52. In an elevating apparatus, a series of platforms having tread surfaces, links
to which the propelling power is applied connecting said steps and forming an
endless carrier; with ways leading to and from different horizontal planes, said
ways being so constructed and arranged as to retain the platforms with their tread
surfaces uppermost throughout their movement.
53. In an elevating apparatus, a series of platforms having tread surfaces and
connections between said platforms to which the propelling power is applied
forming an endless carrier, with inclined ways leading to and from different hori-
zontal planes, said ways being so constructed and arranged as to retain the
platforms with their tread surfaces horizontal and uppermost throughout their
movement.
54. In an elevating apparatus, a series of platforms having tread surfaces, links
to which the propelling power is applied connecting said steps and forming an
endless carrier; with inclined ways leading to and from different horizontal
planes, said ways being so constructed and arranged as to retain the platforms
with their tread surfaces horizontal and uppermost throughout their movement.
55. In an elevating apparatus, the series of platforms having tread surfaces,
means for propelling said platforms, and ways leading to and from different hori-
zontal planes, said ways being so constructed and arranged as to retain the
platforms with their tread surfaces uppermost and available for transportation
throughout their entire movement and without interfering with adjacent plat-
forms, substantially as described.
56. In an elevating apparatus, the series of platforms having tread surfaces,
means for propelling said platforms, and ways leading to and from different
horizontal planes, said ways being so constructed and arranged as to retain the
platforms with their tread surfaces uppermost, horizontal, and available for
transportation throughout their entire movement, substantially as described.
57. In an elevating apparatus, the series of platforms having tread surfaces,
means for propelling said platforms, and ways leading to and from different
horizontal planes, said ways provided with means to retain the platforms with
their tread surfaces uppermost and free from interfering with adjacent platforms,
substantially as described.
58. In an elevating apparatus, the series of platforms having tread surfaces,
means for propelling said platforms, and ways leading to and from different
horizontal planes, said ways being curved throughout their length and con-
structed so as to retain the platforms with their tread surfaces uppermost and
free from intertering with the adjacent platforms, substantially as described.
59. In an elevator, a movable stairs and landing comprising a series of steps,
and tracks or guide-ways having inclined and horizontal portions, the inclined
portion being curved, the steps on the horizontal portion of the guide-way
having their upper surfaces in alignment and forming a movable level landing

page_text: of practically unbroken continuity, and forming winding stairs on the inclined
portions.
60. In an elevator, a movable stairs and landing comprising a series of steps,
and tracks or guide-ways having inclined and horizontal portions, the horizontal
portion being curved, and the steps when on the horizontal portion of the guide-
way having their upper surfaces in alignment and forming a movable level
landing of practically unbroken continuity.
61. In an elevator, a movable stairs and landing comprising a series of steps,
and tracks or guide-ways having inclined or horizontal portions curved through-
out their length, the steps on the horizontal portion of the guide-way having
their upper surfaces in alignment and forming a movable level landing of
practically unbroken continuity, and forming winding stairs on the inclined
portion.
62. In an elevator, a movable stairs and landing comprising a series of steps,
and tracks or guide-ways curved throughout a portion of their length and having
inclined and horizontal portions, the steps on the horizontal portion of the guide-
way having their upper surfaces in alignment and forming a movable level
landing of practically unbroken continuity.
63. In an elevator, a movable stairs and landing comprising a series of steps,
and tracks or guide-ways curved through a portion of their length, the steps on
the horizontal curved portion of the guide-way having their upper surfaces in
alignment and forming a movable landing of practically unbroken continuity.
64. In an elevating apparatus, a series of platforms having tread surfaces;
means for moving said platforms; and substantially circular tracks for said plat-
forms, which tracks have the form of a double spiral comprising two or more
endless curves when projected on a horizontal plane, the said tracks connecting
different horizontal planes, and arranged to keep the tread surfaces uppermost
throughout the movement of said platforms.
65. In an elevating apparatus, substantially circular tracks which have the
form of a double spiral comprising two or more endless curves when projected
on a horizontal plane, the said tracks connecting different horizontal planes; a
series of platforms adapted to move along said tracks; and means for moving
sand platforms, substantially as described.
66. In an elevating apparatus, substantially circular tracks which have the
form of a double spiral comprising two or more endless curves when projected
on a horizontal plane, the said tracks connecting different horizontal planes; a
series of platforms adapted to move along the said tracks; means for moving
said platforms; and devices for keeping said platforms in a horizontal position
throughout their movement.
Dated this 17th day of January 1899.
HERBERT HADDAN & CO,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.