Improvements in Tabular Attachments for Typewriters and like Machines.
Year: 1899

page_text: Date of Application, 2nd Aug., 1899-Accepted, 21st Oct., 1899
COMPLETE SPECIFICATION.
Improvements in Tabular Attachments for Typewriters and like
Machines.
I, GRANGER FARWELL, of 226, La Salle Street, Chicago, County and State of
Illinois, United States of America, Broker, 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 an attachment for typewriting machines which is
designed to facilitate the work of tabulating or columnating figures of various
denominations.
The invention consists in the matters hereinafter set forth and more particu-
larly pointed out in the appended claims.
In the drawings,
Figure 1 is a fragmentary plan view, partly in section, of a typewriting machine
showing my invention applied thereto.
Figure 2 is a front elevation of the parts shown in Figure 1, with parts thereof
shown in section.
Figure 2 is a horizontal section taken on line 2*-2ª of Figure 2.
Figure 3 is a vertical longitudinal section of the forward portion of the machine,
showing the carriage, its actuating spring drum and the construction of the letter
spacing mechanism with the parts of my invention immediately connected
therewith.
Figures 4 and 5 are transverse sections taken on lines 4-4, 5-5 of Figure 1.
Figure 6 is a detail of the means for adjusting the actuating spring of the stop
arms which form a part of the attachment herein illustrated.
Figure 7 is a detail section taken on line 7-7 of Figure 2.
Figure 8 is a side elevation of a portion of the letter spacing mechanism
showing the parts of my invention immediately connected therewith.
Figure 9 is a similar view of said parts as seen from the opposite side thereof.
Figure 10 is a fragmentary top plan view, partly in section of the letter spacing
mechanism and the parts of my invention immediately connected therewith,
showing said parts in position for intersection in the succeeding operation of
the letter spacing mechanism.
Figure 11 is a vertical section of the sleeve which supports the inner ends of
the stop arms, showing said arms in section.
Figure 12 is a side elevation, of the parts of the invention shown in Figures 8
and 9, showing said parts in a position different from that illustrated in said
Figures 8 and 9.
Figure 13 is a view similar to that shown in Figure 12 with the parts in a
different position.
Figure 14 is a detail section taken on line 14-14 of Figure 13.
Figure 15 is a similar view showing the parts in changed position.
Figure 16 is a plan view of the plate on which the locking detent 03 is mounted.
As shown in said drawings, A designates the base plate of the machine.
B designates the carriage and B¹ the usual spring actuated drum which is con-

page_text: nected with the carriage by a flexible strap and gives motion thereto in the
usual manner. CC designate key levers, and D the spacing key connected
with the forward ends of pivoted bars D', which latter are connected at their
rear ends with the letter spacing mechanism. Said parts of the device and the
letter spacing mechanism is herein shown as made like those employed in the
Oliver typewriting machine, but it will be understood that my invention may
be adapted to other types of machines.
The letter spacing mechanism consists generally of an upright escape wheel
shaft E, which carries at its upper end a pinion E¹, which pinion meshes with
a rack attached to the carriage frame. An escape wheel is attached to the
shaft near the lower end thereof. Said shaft engages at its lower end a bearing
aperture in the horizontal bar (Figure 3) which is attached to a depending
arm 12, which forms a part of the shifting frame. The upper end of said shaft
engages a block e which movably engages the arms e¹ of a guide bracket which is
connected with the machine frame. G designates an oscillatory escapement lever
which is pivoted to said arm B². Said lever carries stiff and limber pawls g g¹,
which are adapted for engagement with the teeth of the escapement wheel E³.
H designates a transversely arranged vertically movable universal or space bar,
located below the key levers C near the rear part of the machine.
Said space
bar is attached to the rear ends of side and intermediate arms H¹ H2, the forward
ends of which are attached rigidly to a rock shaft H³, which has bearing in the
machine frame. H designates a transverse bar connected with said side and
intermediate bars; said several parts constituting a rigid space bar frame. The
escapement lever G is connected at its rear end to the upper end of a vertical
shank or stem G', the lower end of which shank or stem is provided with a
slotted yoke G2 adapted to receive a stud 92, which passes through the inter-
mediate bar H2 of the space bar frame. Said vertical stem has sliding engagement
with a stationary guide block G3, which is connected with the rear end of the hori-
zontal bar 3, to the forward end of which the shaft E is connected. Through
the medium of the slotted yoke G2 vertical movement of the space bar frame is
transmitted directly to the escapement lever G, while backward and forward
movement of said lever with the shifting frame is permitted without effecting
the action of the escape devices.
Downward movement of the type levers C acts to give vertical movement to said
space bar H and to actuate said letter spacing mechanism through the medium
of the lever G. The space key levers D are pivoted at their rear ends to the base
of the machine by means of pivot studs d, and are connected with the transverse
bar H of the space bar frame by means of a vertical bolt d' whereby downward
movement of said space key is transmitted to said space bar.
Referring now to the parts which constitute the present invention, said parts
are made and arranged as follows: --
I designates a horizontal supporting arm having the form of a flat plate attached
to the machine frame at one side thereof and projecting laterally therefrom.
j designates a vertical sleeve which rises from said arm between the outer end
thereof and the machine frame, within which is journaled a shaft J. Near the
upper end of the shaft J is rotatively mounted a horizontal disc K. On said
disc are located a series of stops which are circumferentially adjustable thereon
and project radially from said disc. Said stops are preferably formed on the
outer ends of radial arms J which engage at their inner ends a sleeve k¹ which
rises centrally from the disc K. The shaft J will desirably extend upwardly
some distance into said sleeve. j¹ designates a screw-threaded nut applied to
the outer end of said sleeve k and which holds said arms in place on said sleeve;
said arms being clamped between said nut and a shoulder 2 on the lower end
of said sleeve. Said disc is provided with a plurality of peripheral notches k
which are adapted to be engaged by lugs which project downwardly from
said stops, and by means of which said stops are locked in position with respect
to the disc. Said disc K is graduated to correspond with the carriage scale,

page_text: whereby said stops may be circumferentially adjusted thereon to correspond with
the divisions of said carriage scale. Said arms are made of spring metal and are
so formed that the resiliency of the metal holds the lugs engaged with said
peripheral notches and enables the outer ends of the arms to be lifted until the
lugs thereon are free from the notches for the purpose of shifting or changing
the position of the stops. Said disc, in this instance, constitutes the upper wall
of an annular drum; said drum having a lower wall K' and a circumferential
wall K. Within said drum is located an actuating spring K³ which is connected
at its outer end with the circumferential wall of the drum, and at its inner
end with the shaft J. A flexible strap.or band K' connects the drum with the
carriage. The spring K³ acts against the tension of the carriage actuating spring
and is adapted to be adjusted so as to pull with greater or less force against the
carriage actuating spring as desired. The means for regulating said spring K
consists of a horizontal shaft J2 which is rotatively mounted in a sleeve attached
to the lower face of the supporting arm I, which shaft is provided at one end
with a worm screw adapted for engagement with a worm wheel J3 connected with
the lower end of the shaft J which projects below the supporting arm I.
LL designate a plurality of stop lugs which are mounted on the supporting
arm I and are adapted to be severally moved into the path of the rotary stops j³,
whereby when the disc is rotated and one of the stops is brought into engagement
with one of the stop lugs, movement of the carriage will be arrested. Said stop
lugs are herein shown, and they will preferably be made, integral with vertically
movable levers L' which are arranged transversely with respect to the key
levers C and are pivoted at their outer ends side by side to a standard I' located
at the outer end of the supporting arm I outside of the shaft J, said levers being
located below the lower wall K' of the spring drum. Said stop lugs rise from the
levers and have projecting parts which extend longitudinally of the levers, radially
inside of the outer ends of the stops. The inner ends of the stop lug levers
project over the key levers C in front of the carriage and are provided with
keys, by which they may be manipulated. 12 12 designate parallel vertical
guides located near the inner end of the supporting arm I, between which said
stop lug levers and the stop lugs thereon are located. Said guides hold the
stop lugs from lateral movement in the impact of the movable stops thereon.
Said vertical guides are connected near their upper ends by means of a cross-
bar 13 which engages the upper margins of the stop levers when the latter are
in their normal position and serve to limit the upward movement thereof. Springs/
interposed between said levers and the supporting arm I serve to maintain said
levers in their uppermost or normal position.
N' designates a horizontal lever located adjacent to the letter spacing mechanism
and which has oscillatory movement in a horizontal plane and also in a vertical
plane. Said lever normally stands with its rear end at one side of and slightly
above the level of the upper edge of the forward end of the escapement lever G.
Said lever N is adapted to be horizontally oscillated when either one of the stop
lugs is moved into the path of the rotary stops, to throw the rear end thereof
into position for engagement with the upper margin of the forward end of the
escapement lever and is rocked on its horizontal pivot when said escapement
lever is oscillated. Provision is also made for locking said lever N¹ temporarily
in position for engagement with the escapement lever, as will hereinafter more
fully appear. As herein shown said lever N is pivoted between its ends to an
extension or head N2 on a horizontal rock shaft 0, which latter is mounted in
a bracket 0¹ which is connected at its upper end with the bearing bracket el
for the upper end of the escape wheel shaft. Rigid guide lugs n engaging the
upper and lower surfaces of the lever N', are attached to said extension or head
of the shaft O, and serve to guide the rear end of said lever in its horizontal
movement. In the form of spacing mechanism herein shown, which embraces
a vertical escape wheel shaft and a pinion on the upper end thereof which engages
a rack on the carriage, the forward end of the lever N¹ is connected with said

page_text: pinion in such manner that depression of said forward end of the lever which
occurs when the rear end of the lever is elevated through the operation of the
escapement lever, acts to disengage said pinion from the rack. The connections
between said lever and pinion consists, as herein shown, of a vertical arm 0+
which is connected rigidly with and rises from said shaft, in the manner shown,
and a link or bar 05 which connects the upper end of the bar 04 with the upper
end of the escape wheel shaft; said link being slotted to permit oscillatory move-
ment of said shaft in the usual operation of the machine.
The connections between said horizontal oscillatory lever N¹ and the stop lug
lever L by which the rear end of said lever N¹ is swung into engagement with
the forward end of said escapement lever when either one of the stop lug levers
is depressed, are made as follows:
M designates a rock shaft which is mounted in a bracket M¹ connected with
the inner faces of the vertical guides 12. Said rock shaft is located below the
stop lug levers and is provided with an inclined yoke M² connected rigidly with
the rock shaft. The central portion m of said yoke is located transversely under
the stop lug levers L', so that when one of said levers is depressed it will act
to depress said yoke and rock said shaft. To one end of said shaft is attached
a rigid arm M3. The outer end of said arm is connected with the forward end
of the oscillatory lever N¹ by means of a connecting bar N. With this con-
struction, depression of one of said stop lug levers acts through said yoke and
connecting bar to swing the rear end of the horizontal lever N into engagement
with the forward end of the escapement lever. A spring m is applied to the
yoke M to retract said lever N¹ when the latter is disengaged from the locking
means provided therefor.
For locking said lever N' in position for the action of the escapement lever
thereon, and for locking that one of the stop lugs which is depressed in its lower-
most position, devices are provided which will now be described. First describing
the construction which is herein illustrated for locking the lever N¹ in position
for engagement with the escapement lever, these parts are made as follows:-
02 designates a horizontal arm or plate which extends forwardly from the
bracket and laterally toward the right hand side of the machine over the outer
end of the lever N¹ inside of the connecting rod N. 03 designates a detent which
is pivotally or loosely connected with the plate 02 in a manner to permit vertical
oscillatory movement of the free end of said detent, by means of a headed stud o
inserted in the upper face of said plate through a hole in the detent which is
made larger than the stud to afford the necessary loose connection. The said
detent is arranged generally in a position transverse to the lever N¹ and has at
its free end or that adjacent to the lever, a downwardly directed tooth of adapted
for engagement with the said lever in one position of the parts; said detent and
its tooth affording a means by which the said lever N¹ is held temporarily in
position for the engagement of its rear end with the escapement lever G. The
plate O2 is provided at its outer end with a slot o³ through which said lug extends
and by which it is held in place and guided as the free end of the detent rises
and falls. The tooth o is arranged to project below the plate 0³ in order that
it may engage said lever N¹ which is located below said plate. Attached to the
bracket is a flange of which projects from the bracket and terminates in a
horizontal arm 06 which is arranged perpendicular to the rack bar of the machine
and beneath the forward end of the oscillating lever N¹. Said horizontal arm 0°
is provided at its extremity with an upwardly projecting lug of which reaches
to within a short distance of the horizontal plane of the plate 03 and is provided
with a vertical contact edge or shoulder facing toward the left hand side of the
machine and adapted for engagement with the side margin of the oscillating
lever N at a time when the rear end of said lever is thrown into position over
the escapement lever and at its forward end is depressed. This vertical contact
edge or shoulder of the lug of is, moreover, located slightly to the right of the
left hand side or contact edge of the tooth o¹, so that when the forward end of

page_text: the lever is in contact with said edge or shoulder it will be partially beneath the
said tooth. The said lug o is, moreover, so arranged that when the forward end
of the oscillating lever N¹ is in its elevated position it will be free to pass over
the said lug and between the upper edge of the lug and the lower surface of the
plate 02
These parts are so arranged that when the rear end of said lever N¹ is moved
to the left, so as to be free from the escapement lever, and the forward end of
the said lever N is at the limit of its throw to the right, and is in its elevated
position, which is the normal or usual position of said lever in the operation of
the typewriter, the said forward end of the lever will stand above the level of
the lug of and in contact or nearly so with the under surface of the arm 03, and
will also stand beneath the tooth o', which will at this time be in its elevated
position and rest at its lower end upon said lever. The parts are moreover, so
arranged that when the forward end of the lever N¹ is thrown to the left, so as
to bring its rear end over and in position to engage the escapement lever when
the front end of the lever is in its depressed position, the left hand edge of the
tooth o of the detent 03 will be in position to engage the side edge of said lever
and thereby temporarily retain said lever with its rear end in position for engage-
ment with the escapement lever. The parts are further so constructed that when
the escapement lever is lifted with the effect of depressing the forward end of
the lever N¹, said forward end of the lever, as it is moved downwardly away
from the tooth o¹, will, when it escapes from said tooth, become engaged by
the lug of which serves to hold the said lever from swinging horizontally out
of engagement with the escapement lever until, by the depression of the escape-
ment lever, the forward end of said lever N¹ is allowed to rise above the top of
said lug o6. By reason, moreover, of the position of the left hand or contact edge
of the lug of with respect to the tooth o¹, as the forward end of the lever N¹ rises
when resting in contact with the lug of it will strike the lower end of the tooth o¹
and lift the same, so that when the said lever N¹ swings from the lug of toward
the right and thereby returns to its normal position, the tooth o' will rest upon
and be held in its elevated position by the said lever, in the manner hereinbefore
mentioned.
The means for locking the stop lug levers and the attached lugs in their
depressed positions are made as follows: -Each of said stop lug levers is pro-
vided on its lower margin near the yoke M³ with a lug , which extends longi-
tudinally of said lever and is separated from said lever so as to form between
the same and the lever a slot . The middle portion m of said yoke stands
normally just outside of the slot 13. Depression of one of said levers causes said
part m of the yoke to move inwardly and enter such slot, being directed therein
by engagement with the lower margin of the lever. When the parts are in this
position said middle part m of the yoke engages the upper margin of the lug 2
and prevents the lever connected therewith from rising so long as the yoke is in
this position; said yoke being held in such position by engagement of the tooth o'
of the detent 03 with the lever N¹.
A spring o5 is interposed between the bearing block e engaging the upper end
of the escape wheel shaft and a cross-bar connecting the arms of the guide
brackets e and which tend to hold said pinion in engagement with the rack.
A second spring o³ may also be provided which is connected at one end with the
upright arm 04 and at its other end with the bracket which supports the rock
shaft to which said arm is connected.
The construction heretofore described constitutes an attachment for a type-
writing machine having a spacing mechanism of the general character described,
and which is intended to facilitate speed and accuracy in tabulating work where it
is desired to write vertical columns of words or figures. It will be understood,
however, that my invention may be applied to typewriting machines having other
forms of construction or spacing mechanism, and that the parts immediately
connected with such spacing mechanism may be varied to suit each particular

page_text: case. Where columns of figures are to be written it is usually desirable that all
the units of the column shall be located under each other in a vertical line, and
that the tens, hundreds, thousands, etc., of the numbers constituting said column
shall be located in similar relation to each other. The device herein shown has
therefore been designed for the purpose of enabling the carriage to be stopped
at varying distances from a predetermined point, which will enable the figures
of numbers of various denominations to be written in their proper relation with
respect to a predetermined point, and with the units, tens, hundreds, thousands,
etc., of the various groups of numbers constituting the column arranged vertically.
In the present instance eight stop lug levers are provided having eight keys +.
The key connected with the lever which operates the last stop lug of the series,
with reference to the direction of the movement of the movable stops, is provided
with a designating character consisting of a decimal point, and is adapted to be
depressed to move the stop lug connected therewith into the path of the movable
stops when the figures to be written are to be located on the right hand side of
a decimal point. The key which is connected with and actuates the next adjacent
stop lug, or the second from the last of the series is provided with a designating
character corresponding with or representing units, and is adapted to be depressed
when a unit number is to be written. The keys connected with the remainder
of the stop lugs are designated by numbers which increase tenfold in the order
of arrangement of the stop lugs, the key connected with the first stop lug of the
series being provided with a designating character comprising seven figures,
and which is adapted to be depressed when an integral number containing seven
figures is to be written.
With this statement of the object of the invention I will now proceed to describe
the operation of the device: When it is desired to columnate figures, one of the
stop keys is depressed, and thereby, through the lever L', depresses the stop
lug L connected therewith into the path of the movable stop it; said stop having
been previously set on the disc scale in a position to correspond with the position
at which it is desired to locate said column. If, for instance, it is desired to
write a column of decimal numbers the movable stop will be set on the disc
scale at a point to correspond with the point on the carriage scale at which said
decimal is to be printed, so that the carriage will be stopped at the proper place
to print said decimal point, and the figures will follow the same in the usual
manner. When it is desired to columnate numbers which each contain a plurality
of figures, one of the movable stops will be set on the disc scale to correspond
with the point at which the figures at the right hand of said column are to be
printed, and the distance at which the carriage will be stopped in each instance
in advance of such point will depend upon the number of figures in the number
to be written and such distance is determined by the depression of the lug which
is devoted to the designation of said number to be written. For instance, if the
number contains two figures the ten stop lug will be depressed so that said
carriage will be stopped at one space from the predetermined point which will
permit the number to be written with the tens and units of the same in their
proper vertical position.
"
"
When one of the levers is depressed to bring the lug connected therewith into
the path of the movable stops, it acts, through the yoke M2, rock shaft M, arm M³
and connecting bar N to oscillate the lever N¹ to bring the rear end thereof into
engagement with the forward end of the escapement lever, and at the same time
moves the forward end of said lever N¹ into position for the tooth o¹ of the
detent 03 to engage the right hand side margin of the lever and to lock the same
in this position. At this time it will be noted that the middle portion m of the
yoke has entered the slot 13 between the depressed lever and the lug 12 connected
therewith, and is in engagement with the upper margin of said lug, thereby pre-
venting said lever from rising until the yoke is released. Said middle portion of
the yoke also prevents either of the other levers from being depressed while in
this position. The carriage spacing mechanism is now operated through the

page_text: actuating of the space key D, in which operation the forward end of the escape-
ment lever is elevated. Such elevation of the escapement lever acts to raise the
rear end of the lever N', which is permitted by reason of its connection with
the rock shaft O. Such movement is communicated through said rock shaft,
the arm and link 05 to the upper end of the escape wheel shaft in a manner
to release the pinion E' carried by said shaft from the rack bar. At this time
the carriage will be moved by its actuating spring until arrested by impact of
the next adjacent stop with the depressed stop lug. This movement of the
carriage, it will be understood, will be very rapid and will take place before the
spacing mechanism is restored to engagement with the carriage. Upon relieving
the pressure from the space key 1) the forward end of the escapement lever will
be restored to its lowermost position and through the action of the springs ee
the escape wheel shaft will be swung toward the rack bar and through the link O³,
arm and rock shaft, will lift the forward end of the lever N¹. In the previous
depression of the forward end of said lever it was moved out of engagement with
the tooth o of the detent 03 and into engagement with the lug o", which latter
has prevented the retraction of said lever under the influence of the spring m¹
connected with the yoke M². The inner edge of the tooth o of the detent (³
being located just to the right of the inner edge of the lug 06, as shown in
Figures 14 and 15, it follows that when said lever N¹ is in engagement with the
lug o said tooth o' will rest partially over the upper face of the lever.
therefore, the forward end of the lever is raised to its normal position it will act
by engagement with the lower end of said tooth to raise the locking detent 0
and when the said lever has passed the upper edge of the lug of it will be free
to move to the right out of engagement with the holding edge of said lug 06
under the action of the spring m¹. At this time the rear end of said lever will
move laterally out of engagement with the escapement lever, and the stop lug
lever will be free to rise under the action of the spring 1, and move the stop lug
connected therewith out of the path of the stop arms and the machine be free
to operate in its usual and normal manner.
When,
The rear sides of said stops j, with reference to their direction of movement
are beveled, as shown in Figure 1, and the stop lugs are correspondingly beveled,
so that if one of said stops be located under one of the lugs which is to be
depressed, engagement of such inclined surfaces will act to advance such engaged
stop out of the path of the stop lug.
Many changes in the details of construction may be made without departing
from the spirit of the invention, and I do not wish to be limited to such details
except as herein made the subject of specific claims.
:
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. A tabulating attachment for typewriting machines, comprising a stop having
a movement corresponding with that of the carriage, a plurality of auxiliary
keys which act to arrest the movement of said stop at varying distances from a
predetermined point, each of said keys operating to establish temporary operative
connection between the space key and a part the movement of which effects the
release of the carriage from the letter spacing mechanism.
3
2. A tabulating attachment for typewriting machines, comprising a stop which
has movement corresponding with that of the paper carriage, a plurality of stops
on the machine frame, a plurality of auxiliary keys which act to throw said
stops on the frame into the path of the stop which moves with the carriage, and
means operated by the auxiliary keys for temporarily connecting the spacing key
with a movable part of the letter spacing mechanism whereby the latter is dis-
connected from the carriage in the depression of the spacing key and is again
engaged with the carriage when the spacing key rises.
3. A tabulating attachment for typewriting machines, comprising a
stop

page_text: mechanism for arresting the carriage at varying distances from a predetermined
point and connections between said stop mechanism and the letter spacing
mechanism, effecting the release of the carriage from the letter spacing mechanism
in the initial movement of the said letter spacing mechanism, and the re-engage-
ment of said carriage with the letter spacing mechanism in the final movement
of the said latter spacing mechanism.
4. A tabulating attachment, comprising a stop mechanism for arresting the
carriage at varying distances from a predetermined point and connections between
said stop mechanism and the letter spacing mechanism effecting the release of
the carriage from the letter spacing mechanism upon the placing of the stop
mechanism in position to arrest the carriage, through the initial movement of
the letter spacing mechanism and the re-engagement of the carriage with the
letter spacing mechanism and restoration of the stop mechanism to its inactive
position upon the final movement of said letter spacing mechanism.
5. A tabulating attachment for typewriting machines, comprising a stop which
has movement corresponding with that of the paper carriage, a plurality of stops
on the machine frame, a plurality of auxiliary keys acting to throw said stops
on the frame into the path of the stop which moves with the carriage, a dis-
connecting device for releasing the letter spacing mechanism from the carriage
which is connected with the auxiliary keys and is adapted by the actuation of
either of said keys to be thrown into position for engagement with a part which
is moved in the depression of the spacing key, retaining mechanism by which the
disconnecting device is temporarily held in position for engagement with said
part which is moved by the spacing key and releasing means operated in the
rising of the spacing key acting to effect the release of said disconnecting device
from said retaining means.
6. A tabulating attachment for typewriting machines, comprising a stop which
has movement corresponding with that of the paper carriage, a plurality of stops
on the machine frame, a plurality of auxiliary keys acting to throw said stops
on the frame into the path of the stop which moves with the carriage, a lever
pivoted to oscillate in two planes at right angles to each other, having operative
connection with the several auxiliary keys and which is connected with a part
of the letter spacing mechanism, and is adapted by the actuation of either of said
keys to be thrown into position for actuation by a part which is moved in the
depression of the space key and which on the depression of the space key moves
said part to release the carriage from the spacing mechanism, holding means
acting to retain said lever in position for engagement with said part which is
moved in the depression of the space key, and means acting to effect the release
of said lever when the space key is allowed to rise and the lever is returned to a
position permitting re-engagement of the spacing mechanism with the carriage.
7. A tabulating attachment for typewriting machines, comprising a stop which
has movement corresponding with the paper carriage, a plurality of stops on the
machine frame, a plurality of auxiliary keys acting to throw said stops on the
frame into the path of the stop which moves with the carriage, a rock shaft acting
on a part of the letter spacing mechanism to release the carriage therefrom, a
lever pivoted to said rock shaft and adapted to be swung into engagement with
and free from a part which is moved by the spacing key and which acts on the
lever in a direction to turn the rock shaft, a movable detent constructed to engage
said lever when in position for engagement with said part, a stationary contact
surface located in position to retain the said lever in position for engagement
with said part when said lever is swung away from said detent on the depression
of the space key, but which holds the lever in position to engage and move the
detent out of its path when said lever is swung clear of said stop surface in the
rising of the spacing key.
8. A tabulating attachment for typewriting machines, comprising a stop
mechanism constructed to arrest the carriage at varying distances from a pre-
determined point, means for temporarily locking the stop mechanism in position

page_text: to arrest the carriage, and means for temporarily disconnecting the carriage from
the letter spacing mechanism.
9. A tabulating attachment for typewriting machines, comprising a stop which
moves with the paper carriage, a plurality of stop lugs on the machine frame,
a plurality of auxiliary keys operating to throw said stop lugs into the path of
the movable stop, means controlled by the said auxiliary keys and operated by the
spacing key for temporarily disconnecting the carriage from the spacing mechan-
ism, and means for temporarily locking the stop lugs in position for engagement
with the movable stop.
10. A tabulating attachment for typewriting machines, comprising a stop
movable with the paper carriage, a plurality of auxiliary key levers on the
machine frame having integral stop lugs, cither of which lugs is adapted to be
moved into the path of said movable stop, means for temporarily locking either
of said stop lugs in position for engagement with the movable stop, and means
controlled by said auxiliary key levers and operated by the spacing key for
temporarily disconnecting the carriage from the letter spacing mechanism.
11. A tabulating attachment for typewriting machines, comprising a stop mov-
able with the paper carriage, a plurality of stop lugs on the machine frame either
of which is adapted to be moved into the path of the movable stop, means for lock-
ing either of said lugs in its operative position, said locking means being con-
structed to prevent movement of the remaining lugs until the first mentioned
lug has been restored to its inactive position, and connections between the said
stop lugs and the letter spacing mechanism.
12. The combination with the paper carriage and the letter spacing mechanism
of a typewriting machine, of a stop movable with the carriage, a pivoted lever
which carries a stop lug which is adapted to be moved into the path of the
movable stop, a pivoted yoke engaging said lever, connections between said yoke
and the letter spacing mechanism, a lug on said lever adapted for engagement
with the yoke and locking means for the yoke whereby the lever is held in
position to maintain the lug in the path of the movable stop.
13. The combination with the paper carriage of a typewriting machine, a
carriage actuating spring and letter spacing mechanism, of a movable stop con-
nected with the carriage a spring applied to move said stop and which acts against
the tension of the carriage actuating spring, a stop lug which is adapted to be
moved into the path of said movable stop, and operative connections between
said stop lug and the letter spacing mechanism.
14. The combination with the paper carriage of a typewriting machine, an
actuating spring therefor, and letter spacing mechanism, of a rotary part con-
nected with the carriage, a stop on said rotary part, a spring applied to said
rotary part which acts against the tension of the carriage actuating spring, a
stop lug which is adapted to be moved into the path of the rotary stop, and
connections between said stop lug and the letter spacing mechanism.
Dated this 2nd day of August 1899
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.