Year: 1897

page_text: I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Components
Manufacturing Company, Limited, of Bournbrook, near the City of Birmingham,
do hereby declare the nature of this invention to be as follows:-
This invention relates to that class of velocipedes known as multicycles and
designated respectively as triplets, quadruplets, quintets and so on, according as
to whether they are designed to carry three, four, five or more riders, and has for
its principal objects, to strengthen and generally improve the construction of the
frames, of such cycles, and also to reduce the total length of such frames in order
that there may be less leverage or twisting strain in turning corners.
I will first describe my invention as applied to a triplet safety bicycle for carry-
ing three riders, the principal feature of which is that the back stays usually
directed from the summit of the rearmost seat pillar to the outer ends of the chain
stays or back forks are dispensed with, thereby considerably reducing the length
of the frame. The third or rear rider is seated immediately over the back wheel
and the crank axle driven by him passes concentrically through the back hub,
as hereafter fully described.
The framing is constructed of lengths of seamless steel tube, of various suitable
gauges and diameters, brazed into unions or junction lugs and arranged as fol-
lows: The ball head sleeve carries at the back of its upper end a twin socket or
lug and at the lower end a single socket. Into the top socket of the upper pair
is brazed one end of a tube directed rearwardly to a front socket carried by the
first saddle pin clip into the underside of which the top of the first seat tube
directed upwardly from the front bottom bracket, is brazed, whilst the front dia-
gonal tube, which is preferably of a large diameter and thick gauge, is directed
between the lower end socket of the ball head sleeve and an oblique socket at
the front of the aforesaid ball head. The middle of the seat tube carries a double
lug, with the sockets directed respectively from the front and back of the same
and a diagonal bracing tube proceeds from the said front socket to the lower
socket of the twin lug at the summit of the ball head, whilst this diagonal stay
is continued from the back socket of this seat pillar lug to a corresponding socket
at the front of the second bottom or crank axle bracket, from the top of which
the second seat member proceeds, and is terminated at its upper end by the second
or middle seat pin clip and lug, which are braced together by a top tube directed
between the top socket of a twin lug on the back of the first or front seat lug and
a front socket on the second seat lug, a diagonal stay tube being directed from
the lower socket of the said twin lug to the front socket of a junction piece in the
middle of the second seat tube. The middle part of the framing, i.e. that part
coming between the front and second seat tubes is braced and strengthened by a
pair of diagonal and preferably parallel stays directed respectively from the front
seat lug to the middle of the second seat tube, and from the middle of the first seat
tube to the second crank axle bracket.

page_text: The first and second crank axle brackets are connected together by four tubular
members arranged to form the main base of the machine in the following manner.
The back of the front bracket, and the foremost side of the second bracket have
each a pair of side by side sockets, into which the opposite ends of the top pair of
base tubes are brazed, whilst depending from the bottom of each lug is a boss or
hanger, axially bored to receive the ends of the two bottom members of the base
framing the four tubes of which may also be braced together by a suitable
middle piece or bridge.
The rear part of the framing comprises the back forks or chain stays and the
support for the third rider. The said back forks are in double order, that is,
each side is composed of two members disposed one above another, those on one
side being preferably of round sectioned tubing and those on the other of an oval
or flattened section, the whole being brazed at the front ends into sockets at the
back of the second bottom bracket and the hanging lug depending from the under-
side thereof and at the rear taking on to lugs or into sockets carried by the special
rear wheel brackets or bearings hereinafter described, which opposite bearings
also carry other lugs for receiving respectively the rearmost ends of double dia-
gonal stays disposed between it and the second seat tube, and the lower ends of
the members constituting the support of the third seat. Thus the said rear portion
of the framing is constructed as follows:-At the back of the middle seat lug is
a twin socket, from the upper socket of which the third portion of the top rail
proceeds to the front socket of the third and rearmost seat lug, carried at the sum-
mit of the third seat supporting tube, which, after passing down a short distance
towards the back wheel bearing, terminates in a junction piece or union com-
prising three or other number of separated horizontal plates made into solid sockets
at their ends, somewhat after the style of an ordinary front fork crown and these
end sockets have brazed into them the upper terminations of a pair of (preferably)
oval sectioned tubes, the lower ends of which take on to the aforementioned lugs
on the top edges of the rear wheel brackets, thus constituting a forked rear seat
support, between the blades or sides of which the back wheel runs. The lower
socket of the twin junction, at the back of the middle seat lug, has brazed into it
an end of a diagonal tube also terminating in a union or junction between the ends
of which and suitable junctions lugs on the seat supporting fork, a diagonal pair
of tubes, constituting an oblique stay fork, are directed, whilst a like partly forked
diagonal strut is disposed between the middle lug on the second seat tube and
lugs or sockets on the rear wheel bearings. The rear portion of the framing is
thus braced diagonally by parallel and obliquely directed members the rearmost
parts of which are forked, so that the rear wheel runs between the forked sides
of the rear seat support, the two diagonal stays and the double pairs of back forks
or chain stays, which latter may be transversely braced by bridge pieces.
The junctions of the members comprising the frame may be strengthened
wherever required by interior liners.
The front forks consist of four tapering and separated members, arranged in pairs,
with each side terminated at bottom in a fork end and with the upper ends fitted
with a crown made up of two or more horizontal plates fitted with bossed eyes or
sleeves whereinto the members of the fork sides take and with a middle plate
coming between them. This fork crown terminates the lower end of the steering
pillar into the upper end of which the stem of the handle bar takes. At the front
of, and parallel with the ball head sleeve, is a supplementary strengthening mem-
ber made fast at the upper end to the ball head clip surmounting the upper end
of the steering pillar and at its lower end taking into eyed or socketted extensions
of the fork crown.
The second crank axle bracket carries within it the principal crank axle, having
cranks and pedals at its ends driven by the second rider. Mounted on the left
hand side of this crank axle is a sprocket wheel, in gear, by a chain, with a like
sized sprocket wheel on the left hand end of an axle passing through the back hub
and having pedalled cranks on its ends driven by the third rider, whilst the right

page_text: hand end of the hub is fitted with a toothed wheel driven by a chain from a large
main driving sprocket wheel, made fast on the right hand side of the said middle
and principal axle, whose said right hand end also carries another chain wheel, in
front of the principal driving sprocket, and in gear, by a chain, with a sprocket
wheel of the same size mounted on the right hand end of the crank axle mounted
in the foremost or first crank axle bracket.
The driving of the back axle passing through the hub thus communicates
motion through its sprocket wheel to the sprocket wheel on the left hand end of
the main axle, the main driving wheel on the right hand end of which in turn com-
municates the driving motion to the small toothed wheel on the right hand end of
the back wheel hub, which consists of a waist, sleeve or barrel, with cupped ends
and with a central sleeve or waist running axially therethrough and through which
the crank axle aforesaid passes, and with the left hand of the same fitted with a
combined cup and cone, with the central hole inside screwed to take upon the end
of the said sleeve and the outside screwed part taking into the bearing or bracket
termination of the back forks or chain stays. One set of balls run in a ball race
formed between a fixed cone on the left hand end of the crank axle and the out-
ward presented cup part of the combined cup and cone screwed on the sleeve end,
whilst a second set comes between the ball race on the inward cone part thereof
and the ball race on the cupped end of the hub. This constitutes the fixed end
of the hub, whilst the right hand and adjustable end is alike unto the other end,
but the cone on crank axle screws on to a right hand wormed part thereof to ad-
mit of the adjustment of the bearings, whilst the outside periphery of the com-
bined cup and cone is plain and takes into a plain bearing in the hub bracket
terminating the right hand chain stays or forks, whilst the central and screwed
axial hole in this said right hand side combined cup and cone takes upon the
screwed right hand end of the central sleeve connecting the said cups and cones
together. The open ends of the cups at the opposite ends of the hub are closed
by dust-excluding rings, whilst the bearings of the combined cups and cones are
split at the back and are drawn together by cottar pins passing through lugs on
the opposite sides of the split.
The application of the foregoing part of my invention to quadruplets, quintets
and other multicycles differs in no essential particular from that described, as by
adding thereto one, two or more seat tubes, bottom brackets and seat lugs, con-
nected at bottom by a quadruple membered base framing and braced to the seat
pillars immediately in front of it or them by diagonal tubes and horizontal top rails,
and arranging top rails, and arranging the driving gear to suit the number of
brackets, a machine to safely carry any number of riders may be constructed, but
in the case of a machine to carry five or more riders I prefer to further strengthen
the front forks and steering head of the machine by constructing it as follows:
The front forks consist as before of two sides, each composed of a pair of tubular
members proceeding from the fork crown to the fork end within a gap in which
the axle of the front wheel takes, whilst directed upwardly from each of the fork
ends, and passing through sleeves or bossed eyes in forward extensions of the
crown plates, and proceeding thence to the head clip, is a supplementary fork
bracing member, the upper end of which is bolted to a forward and split extension
of the said head clip by a single bolt, the split or divided parts of which extended
parts embrace between them the upper end of the front head-bracing tube, whose
lower end terminates in the fork crown which consists of a pair of separated hori-
zontal plates bracing the whole of the members together and having sockets, bossed
eyes or sleeves at parts corresponding in number and position to the tubular mem-
bers passing therethrough the fork sides and front head tube of which are preferably
further braced by a middle plate disposed between the upper and lower ones.
fork crown cup is screwed on a pin.
The
The side tubes and other members of the fork have V-shaped or chamfered
inner ends, which are arranged to break joint with each other within the inside of
each member and by making the ends of the tube members take over sockets where

page_text: required, principally at the ends of the back and front forks, no trapping or flat-
tening down of the tubes is necessary.
Referring again to the driving mechanism, a D-shaped or flat edge washer is
slipped on the adjusting end of the rearmost crank axle, and the chains on the
right hand side of the machine are adjusted by the ordinary excentric adjustment,
whilst the chain or chains on the other side may be adjusted by a swinging arm
with a rollered end, made fast to one of the side tubes of the bottom part of the
framing and adapted, as the chain wears or stretches, to be brought more into a
right angle with respect to its supporting stay and thus to bear against the inside
of the said chain and depress it somewhat downwards, thus keeping the chain
always taut.
I wish it to be understood that I do not confine myself to the specific constructions
and arrangements herein described, which may be varied in detail as may be
found most expedient, without departing from the nature of my invention.
Dated this 20th 1
1005
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Components
Manufacturing Company, Limited, of Bournbrook, near the City of Birmingham,
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement:
-
This invention relates to that class of velocipedes known as multicycles and
designated respectively as triplets, quadruplets, quintets and so on, according as
to whether they are designed to carry three, four, five or more riders, and has for
its principal object, to strengthen and generally improve the construction of the
frames of such cycles, and also to reduce their total length in order that there may
be less leverage or twisting strain in turning corners.
I will first describe my invention as applied to a quadruplet safety bicycle for
carrying four riders, the principal feature of which is that the back stays usually
directed from the summit of the rearmost seat pillar to the outer ends of the chain
stays or back forks are dispensed with, thereby considerably reducing the length
of the frame. The fourth or rearmost rider is seated immediately over the back
wheel and the crank axle driven by him passes concentrically through the back
hub, as hereafter fully described.
The framing is constructed of lengths of seamless steel tube of various suitable
gauges and diameters, brazed into unions or junction lugs and arranged as illus-
trated in the accompanying drawings, in which
Figure 1 represents an elevation of quadruplet safety bicycle, constructed, ar-
ranged and provided with detail improvements in accordance with my invention.
Figure 2 is a plan of the bottom part of the same, showing also the arrangement
of the driving gear wheels.
Figure 3 represents upon an enlarged scale, an elevation of the rear part of the
framing, viz., those parts supporting the seats of the third and fourth riders.
Figure 4 is an end view of the said framing showing the member and forked
stays supporting the rear seat.
Figure 5 represents, upon a still further enlarged scale, a section of the base or
lower members of the machine upon the dotted line a Figure 3, showing the triple
arrangement of the members.

page_text: Figure 6 is a section, upon the same scale as Figure 5, upon the dotted line a¹,
Figure 3, whilst Figure 7 is a similar section upon the dotted lines a³, showing the
duplication of the chain stays, and how the same are made of an oval section on
the left hand side, and round on the other side.
Figure 8 represents a separate view, on the same scale as Figure 3, and in side
elevation, of the steering head, front forks and their accessories.
Figure 9 is a front elevation of Figure 8, and Figure 10 a plan of the fork
crown employed in conjunction with the said steering head.
Figure 11 represents a side elevation, drawn full size of the handle bar stem clip
of the said steering head, which clip is provided with forward extensions adapted
to embrace and clamp the upper end of a supplementary member which is arranged
parallel with, and constitutes a reinforcement of the said head.
Figure 12 is a plan of the said clip.
Figure 13 represents an edge view, section and plan of the locking ring which
secures the steering column within the sleeve of the head.
Figure 14 represents a side elevation of the said steering head shown in Figures 8
and 9, but drawn to full size and with the lower parts of the fork sides broken
away.
Figure 15 is a full sized plan of the crown plate shown in Figure 10.
Figure 16 is a view showing the construction and arrangement of the parts of
the rear wheel hub and rearmost driving axle with its bearings.
Figure 17 represents a front view of the front forks and a section of the front.
hub.
The same letters of reference indicate corresponding parts in the said Figures 1
to 17 of the drawings.
The ball head outer sleeve a, of the frame carries at the back of its upper end a
twin socket or lug a¹, and at the lower end a single socket a². Into the top
socket a³ of the double lug a¹, is brazed one end at, of a horizontal tube a5, directed
rearwardly to a front socket aº, carried by the lug a', having formed with it, the
first saddle pin clip and into the underside of which the top end of the first seat
tube a, directed upwardly from the front bottom bracket a³, is brazed, whilst the
front diagonal tube a10, which is preferably of a large diameter and thick gauge,
is directed between the lower end socket a², of the ball head sleeve and an oblique
socket a¹ at the front of the aforesaid bottom bracket aº. The middle of the seat
tube carries a double lug a12, with the sockets a¹³, a14, directed respectively from the
front and back of the same and a diagonal bracing a¹6 tube proceeds from the said
front socket a¹³, to the lower socket a¹7, of the twin lug a¹, at the summit of the ball
head, whilst this diagonal stay is continued in the length 61, from the back.
socket a¹4, of this said lug a12, of the, seat tube a³, to. a corresponding socket b², at the
front of the second bottom or crank axle bracket 63, from the top of which the
second seat member 64 proceeds and is terminated at its upper end-by the second
or middle lug 65, and seat pin clip, which is connected to the first saddle pin lug
by a top tube 66, directed between the top socket of the twin lug a¹8, on the back
of the said first seat lug and a front socket 67, on the said second seat lug, a dia-
gonal stay tube 68, being directed from the lower socket of the said twin lug a¹8,
to the front socket 69, of a junction piece 610, in the middle of the second seat tube b*.
This part of the framing coming between the front and second seat tubes is thus
braced and strengthened by a pair of diagonal and preferably parallel stays 61, 68,
directed respectively from the front seat lug to the middle of the second seat tube,
and from the middle of the first seat tube to the second crank axle bracket.
Third seat tube 4, springing from the third crank axle bracket bearing c³, and
being surmounted by its seat clip lug 5, (which latter is of. the same construction
as the second clip lug 65) is braced to the second seat tube by a horizontal top
stay, and two diagonal stays c³, c¹, respectively directed, between, and secured
at their ends by brazing to, the lower socket of the twin lug 618, and the middle junc-
tion c, of the third seat tube, and the middle lug 610, of the second seat tube and
the diagonal front lug c², of the said third bottom bracket c³, the said diagonal

page_text: stay c¹, forming a continuation of the upper stay 68, in the preceding portion of
the frame.
The said bottom brackets a³, b³, c³, are preferably connected together by three
tubular members d',,, arranged triangularly relative to one another, so as
to form the main base of the machine in the following manner: The back of the
front bracket a³, and both sides of the second bracket 63, and the foremost side
of the third bracket c³, have each a pair of side by side sockets marked respectively
a20, 620, 21, 20, into which the opposite ends of the top base tubes d', d, which are
arranged preferably in a parallel pair, are brazed. whilst depending from the
bottom of these bottom brackets are boss or hanger a, b, c, each axially bored
with a horizontal hole to receive the ends of the single bottom member d³, of the
triangular base framing the three tubes of which may also be braced together
by suitable supplementary middle pieces or bridges.
The rear part of the framing comprises the back forks or chain stays e, and the
support for the third rider. The said back forks are in double order, that is, each
side is composed of two members el; el, e², e², disposed one above another, the said
members e¹, on the left side being preferably of round sectioned tubing and those e²,
on the other or right side of an oval or flattened section, the whole being brazed
at their front ends into sockets 23, at the back of the third bottom bracket and into
the hanging lug, depending from the underside thereof and at the rear taking
on to lugs or into sockets f¹, carried by the special rear wheel brackets or bearings
hereinafter described, which opposite bearings also carry other lugs f², f³, for
receiving respectively the rearmost ends of double or fork-like diagonal stays dis-
posed between them and the third seat tube, and the lower ends of the members
constituting the support of the fourth and rearmost seat. Thus the said rear
portion of the framing is constructed as follows:-At the back of the middle
seat lug c is a twin socket c¹8 from the upper socket of which the fourth portion g6,
of the top rail proceeds to the front socket of the fourth and rearmost seat lug g³,
carried at the summit of the third seat supporting tube 9', which after passing
down a short distance towards the back wheel bearing, terminates in a junction
piece or union 910, comprising three or other number of separated horizontal
plates g, made into solid sockets g18, at their ends somewhat after the style of an
ordinary front fork crown and these end sockets have brazed into them the upper
terminations of a pair of (preferably) oval sectioned tubes 13, the lower ends of
which take on to the aforementioned lugs f³, on the top edges of the rear wheel
brackets, thus constituting a forked stay or support for the rear seat between
the blades or sides of which the back wheel h, runs. The lower socket of the twin
junction 18, at the back of the third seat lug, has brazed into it an end of a dia-
gonal tube g, also terminating in a union or junction 15, between the ends of
which and suitable junction lugs 916 on the seat supporting forks g¹³, a diagonal
pair of tubes g17, constituting an oblique stay fork, are directed, whilst a like partly
forked diagonal strut g18, 19, is disposed between the middle lug c, on the seat
tube and the lugs or sockets f, on the rear wheel bearings. The rear portion of
the framing is thus braced diagonally by parallel and obliquely directed members
the rearmost parts of which are forked, so that the rear wheel runs between the
forked sides of the rear seat support, the two diagonal stays and the double pairs
of back forks or chain stays, which latter may be transversely braced by a bridge
piece e, (see Figure 16). The junctions of the members comprising the frame
may be strengthened wherever required by interior liners.
The front forks i, of the steering head consist of four tapering and separated
members i¹, arranged in pairs, with each side terminated at bottom in a fork end 23,
slotted at 4, to receive the axle 5, of the front wheel hub 26, whilst the upper ends
are fitted into a crown 7, made up of two horizontal plates 28, fitted with bossed
eyes or sleeves 20, whereinto the members of the fork sides take and with a middle
plate 10, coming between the two top and bottom plates. This fork crown termin-
ates the lower end of the steering column or pillar into the upper end of which
the stem of the handle bar takes. At the front of, and parallel with the ball head,

page_text: sleeve a, is a supplementary strengthening member j, made fast at the upper end
to the ball head clip k, surmounting the upper end of the steering pillar, being
embraced by the wings or extensions k¹, thereof, whilst its lower end takes into
the eyed or socketted extensions 2, of the fork crown.
Directed upwardly from each of the fork ends 3, and passing through sleeves
or bossed eyes 212, in forward extensions 213, of the top and bottom crown plates,
and proceeding thence to the head clip, to the extensions of which it is secured
by a bolt passed through the transverse holes 2, therein, are supplementary mem-
bers m, which constitute additional bracings for the steering head and front forks,
the whole of the several component members of which are braced together by the
crown plates, which, as before described, has sockets, bossed eyes or sleeves at
parts corresponding in number and position to the tubular members passing there-
through.
The steering column n, which is directed upwardly from the fork crown, passes
axially up the head, and through the handle bar stem clip, above which the pro-
jecting end receives the retaining ring n¹, by the screwing up of which the adjust-
ment of the ball bearings of the head is effected as usual. Located within the
interior of the said steering column are two liners n³, n³, the outer one n³, of which
is made preferably of hard steel and is parallel throughout nearly its whole length,
being quick tapered only at its upper end n', whilst the inner liner is made of
soft or close annealed steel and is slowly tapered gradually downwards from its
upper end to within about two inches of the bottom.
By employing a steering head and column provided with liners arranged as
described, the strength of the front head, which is the part of a multicycle gener-
ally called upon to take the greatest strains, is materially enhanced. The third
crank axle bracket c³, carries within it the principal driving crank axle o, having
cranks o, and pedals at its ends driven by the third rider. Mounted on the left
hand end of this crank axle is a sprocket wheel o², in gear, by a chain o³, with a
like sized sprocket wheel o*, on the left hand end of an axle p, passing through
the back hub pl, and having pedalled cranks p², on its ends driven by the fourth
rider, whilst the right hand end of the hub is fitted with a toothed wheel p³,
driven by a chain o³, from a large main driving sprocket wheel 06, made fast on
the right hand side of the said third and principal axle o, whose said right hand
end also carries another chain wheel o', outwards of the principal driving sprocket,
and in gear by chains o8, 0%, with sprocket wheel o¹0, 0, of the same size made
fast on the right hand ends of the crank axles mounted in the foremost or first
and second crank axle bracket a³, b³.
The driving of the back axle passing through the hub thus communicates motion
through its sprocket wheel to the sprocket wheel on the left hand end of the main
axle, the main driving wheel on the right hand end of which in turn communicates
the driving motion to the small toothed wheel on the right hand end of the back
wheel hub p¹, which consists of a waist, sleeve or barrel 24, with cupped and ball-
raced ends 25, and with a central sleeve or waist 26, running axially within it,
and through which the crank axle p, aforesaid passes, with the left hand end p²,
of the same fitted with a combined cup and cone 78, whose central hole p³, is inside
screwed to take upon the end of the said sleeve and the outside screwed part taking
into the bearing or bracket q, terminating the back forks or chain stays and being
adjustable therein. One set of balls ŕ, run in a ball race formed between a fixed
cone po, on the left hand end of the crank axle and the outwardly presented cup
part of the combined cup and cone 28, screwed on the sleeve end, whilst a
second set 1, comes between the ball race on the inward cone part pla, thereof
and the ball race p¹³, on the one cupped end 25, of the hub. This constitutes the
fixed end of the hub, whilst the right hand and adjustable end is alike unto first
described end, but the cone p", on crank axle screws on to a right hand wormed
part 15, thereof to admit of the adjustment of the two sets of axle bearings r, r²,
whilst the outside periphery of the combined cup and cone p16, is plain and takes
into a plain bearing q³, in the hub bracket terminating the right hand chain stays

page_text: or forks. The central and screwed axial hole in this said right hand side com-
bined cup and cone p16, takes upon the screwed right hand end p18, of the central
sleeve 2, connecting the said cups and cones 13, 216, together, and has between
its race p, and the opposed race 7, of the hub, the second set of hub bearings 3.
The sets of bearings, 3, at the opposite ends of the hub may be adjusted by
moving or screwing the combined cup and cone p16, inwards or outwards upon the
screwed end 218, of the sleeve 2, The open ends of the cups at the opposite ends
of the hub are closed by dust-excluding rings p", whilst the bearings 9, ³, of
the combined cups and cones may be split at the back q², and be drawn together
by cottar pins q³, passing through lugs q, on the opposite sides of the split thereby
serving to secure the hub to the framing.
The application of the foregoing part of my invention to triplets, quintets and
other multicycles differs in no essential particular from that described, as by adding
thereto one, two or more seat tubes, bottom brackets and seat lugs, connected at
bottom by a triple membered base framing and braced to the seat pillars immedi-
ately in front of it or them by diagonal tubes and horizontal top rails, and ar-
ranging the driving gear to suit the number of brackets, a machine to safely
carry any number of riders may be constructed, but in the case of a machine to
carry three or two riders, I prefer to construct the steering head as shown in side
elevation in Figure 18, and the crown plate as represented separately and in plan
in Figure 19.
In the said Figures 18 and 19, a is the ball head of the framing, n the steering
column provided with a liner n. i, the front forks, each side consisting of two
members, terminating at their upper ends in sockets or eyes, in the fork
crown 28, shown separately in Figure 19, whilst j is a supplementary head strength-
ening member, whose lower end takes into eyes in the socketted extensions ¹¹
of the upper and lower fork crown plates, whilst its upper end is embraced by the
extensions ², of the handle bar stem clip k.
The tubes or members of the forks of the steering heads represented in both
Figures 8 and 18 have internal liners s, provided with V-shaped or chamfered
lower ends, which are arranged to break joint with each other within the inside
of each member and so impart considerable cross stiffness combined with a certain
amount of resilience thereto, in order to prevent the snapping off of the fork
members at the terminations of the liners.
Figure 20 is a front elevation, partly in section, upon an enlarged scale of the
front forks represented in Figure 18, showing the arrangement of the liners.
Figure 21 represents partly in elevation and partly in section, the left hand
side of the said forks, with the chamfered lower ends of liners inclining from left
to right, whilst Figure 22 shows the members of the other side, in which the liners
are set so that their chamfered ends incline in the other direction or from right to
left.
Figure 23 is a section of the said forks, taken upon the dotted line ³, Figure 21
and looking upwards towards the fork crown.
Figure 24 represents a front and side elevation of one of the liners separately.
s are the liners of the left-hand side members and s² the liners of the right hand
members, the inclined ends 3, of the one pair being set in the opposite direction
to the ends st, of the other pair.
By making the ends of the tube members take over sockets where required,
principally at the ends of the back and front forks as described no trapping or
flattening down of the tubes such as is now commonly practised at these parts,
is necessary.
The driving chains on the right hand side of the machine are adjusted by the
ordinary excentric adjustments whilst the chain 03, communicating motion be-
tween the sprocket wheel o, on the back wheel hub, and the wheel o², on the
main-driving axle may be adjusted by means of the arrangement illustrated
separately in edge view and front elevation in Figures 25 and 26 and in position
in Figure i.

page_text: t is an upright arm secured by means of the double clip t¹, t, and bolt t³, to
the chain stays e¹, in any suitable position. The upper end t', is longitudinally
slotted at t, within which slot is an adjustably mounted roller or contact u, the
periphery u, of which is made to bear against the inside of the slack part of the
chain and give the desired tension thereto, after which it is secured in its adjusted
position to the arm by screwing up the nut u², on the end of the spindle u³.
said
Having now particularly described and ascertained the nature of my
invention, and in what manner the same is to be performed, I declare that what
I claim is:
First: In multicycles, providing the steering head with additional strength-
ening members or stays, directed from forward extensions of the handle bar stem
clip, through extensions or socketted extensions of the fork crown plates, and ter-
minating at their lower ends in the fork end fittings which receive the axle of
the front wheel, substantially as described and set forth.
Secondly In the steering heads of multicycles, the combination with a head
sleeve, an additional reinforcing stay arranged parallel therewith, and double fork
sides, of a pair of additional stays or members, extending from the handle bar
stem clip to the fork end fittings which receive the axle, and passing through
sleeves or sockets in forward extensions of the upper and lower plates of the fork
crewn, which may also be provided with sockets or sleeves to receive the upper
ends of the fork sides and the lower termination of the sleeve stay, substantially
as described and set forth.
Thirdly: The improved form of handle bar stem clip, provided with forward
extensions to which the upper ends of the additional reinforcing members of multi-
cycle steering heads are secured, substantially as described and set forth in Figures
8, 11, 12 and 14.
Fourthly: A framing for multicycles, in which the successive seat supporting
tubes or members are braced together by pairs of diagonal and preferably parallel
stays, and by horizontal top tubes directed between seat pillar lugs, arranged and
provided with junction lugs and sockets substantially as described and set forth.
Fifthly: In multicycles, the combination with a framing in which the seat
tubes are braced together by pairs of diagonal and parallel stays, of a triple foun-
dation member or base framing constructed of three series of tubes with their ends
secured within sockets and hanger lugs of the several bottom brackets and braced
together, if required, by middle pieces or bridges, said tubes and their junctions
being arranged substantially as described and set forth in Figures 1, 2, 3, 5 and 6.
Sixthly: In multicycles, providing the rear portion of the framing with double
compression or chain stays, the said pairs of stays being either all of a like section,
or those on one side being round and those on the other side of an oval or similar
section, and arranged substantially as described and set forth in Figures 1, 3 and 7.
Seventhly:-In multicycles, the construction of the rear portion of the framing,
in which the seat of the rearmost rider is supported upon a forked member, braced
to the preceding seat member by a pair of diagonal forked or branched stays, be-
tween the sides of which forks of the seat support and stays the back wheel runs,
substantially as described and set forth in Figures 1, 3 and 4.
Eighthly: The particular construction, arrangement and combination of the
several parts of framings for multicycles, comprising the main framing with dia-
gonal stays, the triple-membered base framing, the double chain or compression
stays and the branched or forked rear-seat support with its branched or forked
stays, the whole being connected together by junction lugs, sockets and unions
and provided with internal liners at parts, substantially as herein described and
set forth.
Ninthly: The particular construction, arrangement and combination of the
parts of the multicycle framing referred to in the preceding Claim, with either
the particular forms of steering heads described and represented in 1, 8 and 14
or in Figures 18 and 19.

page_text: Tenthly: The construction of back-wheel hubs for multicycles, having a sup-
plementary inner sleeve provided at its opposite ends with combined ball bearing
cones and cups, the cup parts of which constitute races for the ball bearings of
a pedal axle passing through the said sleeve, whilst the cone parts constitute races
for the ball bearings of the revolving hub, substantially as described and set forth
in Figure 16.
Eleventhly-In multicycles, the combination with the particular construction
of back wheel hub referred to in the preceding Claim, of the arrangement of
sprocket wheels and driving chains for transmitting the driving power of the
whole of the riders of the machine to the driving wheel, substantially as herein
described and set forth in Figures 1 and 2.
Twelfthly: Providing the upper parts of the steering fork side members of
multicycles, with internal liners having V-shaped or chamfered lower ends, with
the said ends of the liners in the members of one side of the said forks being set
or arranged in opposite directions to those in the other side, substantially as and
for the purpose described and set forth in Figures 17, 20, 21, 22, 23 and 24.
Thirteenthly-In the steering heads of multicycles providing the interior of
the steering column with two internal liners, the outermost one being of hard
steel and the inner one of soft or close annealed metal, substantially as and for
the purpose described and set forth in Figure 14.
Fourteenthly: The means of independently adjusting the tension of the driving
chain communicating motion from the sprocket wheel on the axle p, of the rear
wheel hub to the main driving axle, consisting of an adjustable roller or revolving
contact mounted and arranged substantially as described and set forth in Figures
25 and 26.
1
T
1000
CHARLES THOMAS BROCK SANGSTER,
By Henry Skerrett, 24, Temple Row, Birmingham,
Agent for Applicant.