US1220058A - Repeat mechanism for composing-machines. - Google Patents

Description

J. S. BANCROFT, M. C. INDAHL & J. O. HOFBERG.

REPEAT MECHANISM FOR COMPOSING MACHINES.

APPLICATION FILED NOV. 20. 1915;

1,220,05. Patented Mar. 20, 1917.

6 SHEETS-SHEET I- Z 201 47. ID

.l. S. BANCROFT, M. C. INDAHL 811.0. HOFBERG.

REPEAT MECHANISM FOR COMPOSING MACHINES.

APPLICATION FILED Nov. 20. I915.

Patented Mar. 20, 1917.

6 SHEETS-SHEET 2- J. S. BANCROFT, M. C. INDAHL & J. 0. HOFBERG.

REPEAT MECHANISM FOR COMPOSING MACHINES.

APPLICATION FILED NOV-ZO- 1915.

Patented Mar. 20, 1917.

swims-SHEET 3.

aflowws I wiineooea J. S. BANCROFT, M. C. INDAHL & J. 0. HOFBERG. REPEAT MECHANISM FOR COMPOSING' MACHINES,

APPLICATION FILED NOV.20| 1915.

Patented. Mar. 20, 1917.

6 SHEETS-SHEET 4- HIIWIJIFIIIIIJJLI J. S. BANCROFT, M; C. INDAHL & J. O HOFBERG.

REPEAT MECHANISM FOR COMPOSING MACHINES.

APPLICATION FILED NOV. 20, 1915.

Patented Mar. 20, 1917.

6 SHQETS-SHEET 5.

Z;- aflo'wmn f lVHmeopeo J. S. BANCROFT, M. C. INDAHL & J. O. HOFBERG.

REPEAT MECHANISM FOR COMPOSING MACHINES.

APPLICATION HLED NOV. 20. 1915.-

Patented Mar. 20, 1917.

6 SHEETS-SHEET 6.

JOHN SELLERS BANCROFT AND MAURITZ C. INDAHIQ,

or PHILADELPHIA, PENNSYL- VANIA, AND JOHN OLOF HOFBERG, OF WE STVILLE, NEW JERSEY, ASSIGNORS TO LANSTON MONOTYPE MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A

CORPORATION OF VIRGINIA.

REPEAT MECHANISM FOR COMPOSING-MACHINES.

Specification of Letters Patent. Patgnted Ma 20 1917 Application filed November 20, 1915. Serial No. 62,611.

accompanying drawings, forming part of this specification.

This invention relates to typographical composing machines and the machine adopted for illustrating the invention is one wherein each unit of the composed matter is represented by aselective or designating member such as a finger key adapted to control the operation of punches for producing a record in a record strip which will correspond to the desired composition.

The objects of the invention are to provide an improved arrangement whereby the mechanism responding to a selective or designating member, when once set in motion may be continued in action and caused to" automatically re'eat its functions, with a means whereby t e action may be automati cally arrested at any predetermined point or points in the composition and if desired again inaugurated at the will of the operator.

Composing machines embodying the idea of automatically. repeating the action of a. selective or designating member in the composition are disclosed in prior patents numbered 1,099,734; 1,106,538; 1,149,175; and 1,149,232, and the particular type of machine ado-pted for illustrating the present invention is that disclosed in Patent No. 1,149,175, this type of machine correspond ing in many essential particulars to the keyboard machine of the Lanston Mon'otype system of composition now in common use I and well understood.

Referring to the accompanying drawings,

Figure 1 is a sectional elevation of a portion of a record strip composingmachine, embodying the present invention, many of the well known parts being omitted, but it will be readily understood fromthe parts indicated in the drawings, in connection with the mechanism shown in Patent No. 944,405.

-This patent, however, does not illustrate a repeatmechanism in a keyboard of this type.

Fig. 2 is a partial section on an enlarged scale taken in a plane nearer to the observer than is the plane of the section of Fig.1.

Fig. 3 is a'sectional elevation of a portion of the keyboard substantially in the broken plane indicated by the dotted line 33 in Fig. 1, looking in the direction of the arrow and having added thereto a diagrammatic perspective view of mechanism for controlling the supply of air to the repeat motor.

Fig. 3 is a sectional elevation of a portion of the machine to the right of that shown in Fig. 3, the pointof observation, however, being one to present the parts in true elevation instead of in a diagonal plane as in. Fig. 3.

Fig. 4 is av plan view of the rock shaft, bracket, connecting bar and valve bar guide, together with a portion of the connecting bar tie bar.

Fig. 5 is a front elevation showing the em rack scale and parts of the stop mechanlsm.

Fig. 6 is a detail perspective view of the inner end of one of the valve bars.

Fig. 7 is a detail perspective view of a portion of the stop mechanism including the trip latch, stop rods and stop levers.

' Figs. 8 and 9 are corresponding sectionalv details showing the movements of a valve bar and valve operating bell crank lever connected therewith.

Y Like characters of reference in the several figures indicate the same parts. The parts of the. machine illustrated i the drawings in connection with the parts constituting the present invention and which correspond to similar parts in the mechawhich the bails 175 on the rocker frames cooperate; and the key bars which cooperate with the upper bars of said bails and having.

the usual downwardly extending projections .nism of Patent 944,405, briefly stated, are

thereon. The arrangement of projections on the bars'corresponds' to the well known arrangement for efiecting the selective operation of the valves controlling the punches.

The valve stems are indicated at 170, andit will be understood that when said valve stems are moved longitudinally bythe longitudinal movement of the valve operating bars 173, pressure will be admitted to the corresponding cylinders of the pneumatic motor mechanism for advancing the punches A and maln'ng the proper selective designations or indications in the paper strip which feeds between the upper ends of the punches andthe die bar B.

The paper feeding mechanism wrresponds to that of the before-mentioned patent and at 146 there is indicated the valve for controllingthe admission of pressure beneath one or the other of pistons 137 and 138, which pistons are connected with a rocking frame 139. p

The foregoin reference numbers all correspond to re erence numbers on corresponding parts of the mechanism in said patent, from which the detail construction and operation will be readily understood.

In the operation of such mechanism, when a proper valve operating bar is moved longitudinally to operate its valve stem, the corresponding punch will be advanced, whereupon the valve 146 will be moved to admit pressure beneath the piston 138 to the repeat action of the present invention,

like that of Patent No. 1,149,175, makes provision whereby, when a selective designating. key or device, such as one or. the other of the keys 180, is operated in conjunction with a repeat key or device, the keys15", for example, and the keys held depressed, the valve stem and valve normally operated by the selective designating key will be operated a plurality of times, thus effecting the repeated operation of the designated punch or punches.

In accordance with the resent invention, the valve operating bars 1 3, or those of the valve operating bars which it is desired to. have automatically repeat their functions, do not contact'directly with the valve stems 170, but they are provided with members which are normally moved in unison therewith but are under certain circumstances capable of an independent movement to effect the repeat action. As shown in the accompanying drawings, the said valve bars 173 are provided at their inner ends with yokes 16, the lower ends of which extend down under and are guided by the bottom face of the rock shaft bracket connecting bar 17, best seen in Figs. 8 and 9, of the accompanying drawings. These yokes are preferably made of parallel members so as to be exceedinlgly light and between them there is pivota mounted a bell crank lever 18, the upper arm of which projects into position to cooperate with one-of.' the valve stems '170 whenever the valve bar is advanced, and the other arm of which projects parallel with the lower portions of the yokes, but extends'beyond the same and is guided by the under face of the part 17 as well as by the upper face of a repeat bar 19, to be presently described. Inasmuch as the movement of the bell crank lever on its ivot 20 is normally prevented by the gulding faces between which the lower arm of the bell crank operates, a forward movement of the valve bar will result in a correspond ing bodily forward movement of the bell crank and an operation of the appropriate valve stem and valve. This construction of the valve bars is one which may becheaply manufactured, is exceedingly light and in its operation does not impose upon the operator any appreciable additional labor, the latter feature being an important consideration in the machine, inasmuch as any' additional labor imposed on the operator tends to decrease the speed of production.

Obviously, in such an arrangement, should the valve bar be advanced from the position shown in Fig. 8 to that shown in Fig.

9, and there held, as bykeeping the key depressed, the valve maybe repeatedly operated by permitting the bell crank lever to move on its pivot 20 and advantage is taken of this arrangement in effecting the repeat operation by providing for a rapid reciprocation of the repeat bar 19, (see dotted lines 7 in Fig. 9). The operation of the bell cranks on the valve bars not advanced is prevented by'permitting the upwardly extending arms of the bell cranks to seat against the front of the valve barguide 17. Conveniently the bell crank levers are. formed with projections 18 which extend between the ,yokes 16. to contact with the guide 17, as shown in Fig. 8.

In the preferred arrangement, the repeat bar 19 forms apart of a rocker frame 21 pivotally mounted at 22 on a bracket 23 fastened to the connecting bar 17. The rocker frame 21 is at one end provided with a rearwardly extending arm 24, (see Figs. 1, 3 and 4) with which the repeat motor cooperates. The repeat motor, asin the patent last above referred to, embodies generreac es i ally in its construction a pair of oppositely V disposed cylinders '25 and 26, in which pistons and 26 are mounted'to reci rocate andbetween the proximate faces 0 which the end of thearm 24 is located.

Pneumatic pressure for operating the pistons is supplied to the cylinders through ducts 52 which lead from the paper feed cylinders 137 and 138, as shown in Fig. 1, or from the valve 146 which supplies the cylinders-137 and 138, just as in said prior patent, and obviously when repeat action 1s desired, the pistons will be reciprocated and the repeat bar 19 moved to oscillate the bell. crank lever or levers as desired.

In so far as the control of the pneumatic pressure for operatingthe repeat motor is concerned, the present mechanism does not differ from the mechanism of the said prior patent, and corresponding arrangements are shown for eliectmg this end in Figs. 1

- and 3, these views being in'this respect similar to Figs. 1 and 5 of thesaid patent. For locking the repeat mechanism against any'repeat action, however, and for automatically arresting the repeat action at a predetermined point-or points, the present mechanism difi'ers essentially from the mechanism of the prior art and embodies a means whereby the repeat bar 19 will be normally locked in its elevated posltlon and released by the operation of the repeat key 15 through the instrumentality of a stop mechanism which is under the control of the em rack bar.

The repeat bar 19 is normally held up against stops 19 or in its elevated position by a supporting latph 27 best seen in Figs. 2 and 3 formed on a downwardly extending arm 28, of a stop lever 29 pivotally mounted on a shaft 30' carried by an end bracket 31 of the frame 23. The lever 29 projects upwardly and is adapted for the collar 35 which is of frusto-conical form and with which a release mechanism is adapted to coiiperate as will be presently described.

Pivotally mounted, preferably on the shaft 30, before referred to, is a repeat key rocker frame 36, best seen in Figs. 2 and 3,

' and with which the inner end of the repeat key bar 37 is adapted to cooperate to move the rocker frame 36 rearwardly,

whenever the repeat key 15 is depressed. The rocker frame 36 is formed with an upwardly extending armconstituting a lever 37, preferably arranged parallel with the lever 29 and having its upper end bifurcated for the receptlon of the rear end of 4 a stop rod 38. Said rod is provided on its inner end with an adjustable collar or shoulder 38% whereby a rear or inward movement of the lever will effect a corresponding movement of the rod. At its for- .ward end the rod 38 is provided with a cross head 39 preferably rigidly mounted on the rod and formed with a laterally extending projection 40 normally adapted to rest in front of and against the smaller flat face of the frusto-conical collar 35 on the rod 32, the arrangement being such that a depression of the repeat key will, through the operation of the rocker frame 36, lever 37 rods 38 and 32, and lever 29, effect the release of the latch 27 to permit of the oscillation of the repeat bar 19.

The rod, 38 is free to rotate in its bearings in the machine frame and lever 37 so as to release the projection 40 from engagebe automatically arrested at ations embodies a shaft or rod 41 (Fig. 5)

journaled in suitable bearings parallel with the em rack scale 42 and capable of a limited longitudinal movement. At the right hand end, as shown in Fig. 5, the said rod 41 is provided witha spring 43 where by it will be normally held toward the left as viewed in this figure, and at the left hand end it is provided with a double sleeve collar 44, with which the forked end of a trip lever 45 coiiperates. The trip' lever 45 is pivotally mounted on the frame of the machine, and at its lower forked end coiiperates with a pin 46 on the cross head 39, the arrangement being such that. a movement of the rod 41 toward the right in Fig. 5 will turn the cross head in a direction to release the projection 40 from engagement with the frusto-conical collar 35 and it is obvious that by mounting adjustable stops or abutments '47 on the rod 41 the usual pointer 42 mounted on the ems rack 43 may be made to cooperate therewith and effect the movement of the rod 41 to trip the latch and arrest the repeat action.

Inasmuch as the repeat action is only desirable under certain special conditions,

a from interference,

it is 'undesirab e that the adjustable stops 4 as, for example in quadding out a'short line,

47 shall normally occupy a. position intersecting the path of the pointer on the ems (rack. In other words, duringthe. normal operation of the composing machine, the ems rack. with its ut during the repeat action the stops should control the arresting of such action at the desired points, as, forexample, at the end of a 1ine',"or. in tabular work, at the end of a column or point where composition is to be resumed. To accomplish this end, the rod ,'41!is. mounted in its bearings so a's'to be, capable of a limited oscillation, and it is provided with a downwardly extending arm 55 mounted to rotate or oscillate in unison therewith but held against longitudinal movement therewith by a guard 48 securedto the machine frame, and having its end bent to engage a slot 49, Fig. 5, in the hub of the arm. The arm 55 projects downwardly into a position to cooperate with the outer end of pin 50 (Fig. 52) mounted in a bearing in the ems rack slide 51. At its inner end the. pin 50 coeperates with the upper end of a lever 53 pivoted on the ems rack slide bracket and at its lower end projecting into a position to cooperate with the cross head 39. A spring 54 connects the'levers 55 and 53 in such wise as to normlly tend to hold the upper end of the lever 53 forwardly and the lever 55 rearwardly, but with the pro-c dominance'of power in favor of the'lever 55 whereb the rod 41 and the stops 47 will. be hel with the stopsv above the path of the ems rack indicator 42*,[as shown in Fig. 2. Inasmuch as the lower'end of the lever 53 lies immediately behind the cross head 39,'inward movement of the lattr when the repeat key 15 is depressed will cause the pin 50 to be projected and the rod 41 turned to bring the adjustable stops 47 down into the path of the indicator 42*, and the latter will move the rod to trip the re peat latch and arrest the repeat action when it engages the stop.

- In operation, the composition is proceeded with in the ordinary way until the production of a body or character is to be,

repeated, whereupon the proper selecting' key is depressed in conjunction with the repeat key 15 and the repeat action inaugurated. Thisjaction is-continued'until either the key is released or until the indicator on the ems rack engages one of the adjustable stops, thereby tripping the repeat -motor latch and allowing the same to become effective in arresting the movement of the repeat bar 19. It is to beunderstood, of course, that the rod 41 is provided with as many adjustable stops as may be desired,

- and that these stops'may beproperly pos1- tioned through'ordinary adjusting means so ointer "should be free-.

sition where t ey will'be inoperative. The

as-to occupy. either a position for'being ef- *fective in trip ing the repeat latch or a poadju stable stops at the' right hand in 5- are shown in operative position, while those at the left hand end in Fig. 5 are in inoperative position.

a I The bell-crank levers carried by the valve bars constitute in efiect supplemental valve bar members which are normally supported ,to move bodily in unison with the valvebars by latch mechanism which is released when the repeat action is desired. The latch 27 holds the repeat bar 19 in position to form- Y =a-rigid guide for the lower arms. of the bell crank levers and consequently the levers I move bodily in unison with the valve bars.

The latch also locks the repeat motor-with the pistons invariably in position to inaugurate the repeat action by the first impulse of air after thelatch is released, and the positions of the parts are positively determined without the employment of springs or yielding connections ofany kind.

- 'What is claimed 15:.

. 1. In a record strip composing machine,

the combination with designating keys and selectors controlled thereby for producing iv the desired indications in 'a record strip, of

connections intermediate a key and its selectors embodying a bar, a supplemental member mounted on said bar and movable bodily in unison therewith or independently thereof, a latch for retaining the supple- -mental member in position to move in uni-.

son. with the bar, a repeat motor for imparting movement to the supplemental member independently of the bar, and a repeat key controlling the latch. i

2. In a record strip composing machine the combination with designating keys and selectors controlled thereby for producing the desired indications in a recordstrip, of

connections intermediate a key and its selectors, embodying a bar, a supplemental member pivotally mounted on the bar, a latch for supporting said member againstpivotal movement, a repeat motor for imparting pivotal movement to said member independently of the movement of the bar, and a repeat key controlling the latch.

3. In a record strip composing machine,

the combination with designating keys, punches for producing the desired indications in a record strip, punch motors and valves controlling said motors, of connections intermediate a key and its punch Lvalves embodying a longitudinally movable valve bar, a supplemental member mounted on said valve bar and movable bodily in unison therewith or independently thereof, a latch for retaining the supplemental member to move bodily in unison with the bar, a repeat motor for imparting movement to the supplemental member independently of the bar, and a repeat key controlling the latch.

5. In a record strip composing machine, the combination with designating keys, punches for producing the desired indications in a record strip and valve controlled punch motors, of connections intermediate a key and its punch motor valve, embodying a valve bar, a supplemental member pivotally mounted on the valve bar in position to cooperate with the valve, a repeat bar cooperating with said supplemental member for holding the same in position to .move in unison with the bar or independently thereof on its pivotal center, a repeat motor for imparting reciprocatory movement to the repeat bar, a latch for locking the repeat bar .in its normal position, and a repeat key con.-

trolling said latch.

'6. In a record strip composing machine, the combination with designating keys, punches for producing the desired indications in the record strip, and valve controlled punch motors, of connections intermediate a key and its punch motor valves, embodying a valve bar provided with a transverse extension, a bell crank lever forming a supplemental member pivotally mounted in said extension in position to cooperate with a punch motor valve, a repeat bar forming a support for one arm of said bell crank lever, a repeat motor for reciprocating said repeat bar, a latch for holding the repeat bar in position to support the bell crank lever for bodily movement in unison with the valve bar and a. repeat key controlling said latch, whereby upon the release of the latch the repeat motor becomes effective for repeating the action of the valve bar on the valve of the punch motor.

7. In a record strip composing machine, the combination with the designating keys, punches and longitudinally movable bars controlling the operation of the punches, of laterally extending yokes carried by said bars, bell crank levers pivotally mounted in said yokes for efiecting the operation of the punches, a repeat bar forming the support for said bell crank levers whereby they are retained in position to move in unison with the bars, a reciprocatory motor for said repeat bar, a latch for holding the repeat bar against reciprocatory movement, and a repeat key controlling said latch.

8. In a record strip composing machine, the combination of a device for making records on a ribbon, and key controlled mechanism for efiecting the operations of the device of mechanism 'for repeating the action of the key on said device embodying a repeat motor, a latch for holding said repeat motor out of operation, a repeat key 'for releasing said latch, a progressively movable member, and connections intermediate said progressively movable member and latch, whereby the latch is automatically released from the control of the repeat key and restored to its active position for arresting the movement of the repeat motor after a pre determined number of operations.

9. In a record strip composing machine, the combination with punches for producing the desired indications in a record strip, keys controlling the operation of. said punches, strip feeding mechanism, and a rack movable progressively in accordance with the set value of the operated punches, of a repeat motor, connections intermediate said motor and punches for repeating the action of a key on said punches, a latch for locking said motor against movement, a repeat key for releasing said latch, a stop with which the rack cooperates and connections intermediate said stop and latch for restoring the latter to its operative position to automatically arrest the movement of the repeat motor.

10. In a record strip composing machine, the combination with means for making a record in a record strip, including finger keys, and a repeat mechanism for automatically repeating the action of a key until arrested, and a repeat key for inaugurating the operation of said repeat mechanism, of an indicator moved progressively in accord with the value of the indications in the record strip, a movable abutment with which said indicator is adaptedto cooperate, connections intermediate said abutment and repeat mechanism for arresting the action of the latter, and connections intermediate said abutment and the repeat key for moving the abutment into the path of the indicator when the repeat key is actuated to inaugurate the repeat action.

11. In a record strip composing machine, the combination with punches for forming indications in a record strip, motors for said punches, finger keys controlling the motors, a repeat mechanism for repeating. the action of a finger key on its punch motor, whereby the effect of any key may be automatically repeated until arrested, and a re.- peat key for inaugurating the operation of the repeat mechanism, of an indicator movable progressively in accordance with the operation an-abutment movable into and out of the path of said indicator, connections inter-' mediate said abutment and the repeat mechanism whereby the repeat mechanism will be arrested by the coiiperation of the indicator and abutment," and connections intermediate said abutment and repeat key,

' parts operated by the fingerkeys, whereby ,the action of afinger key or its unch motor may be repeated automatically, a latch for holding said repeat motor locked against movement, and a repeat key controlling said latch, of a trip interposed in the connections between the repeat key and latch, and

an indicator movable progressively in accordance with the value of the indications in the record strip with connections intermediate said indicator and trip for automatically restoring the latch to its operative position when the indicator reaches a pre- 7 determined point.

13'. In a record strip composing machine, the combination with punches for forming indications in a record strip, motors for said punches,'finger keys -controlling the punch motors, and a repeat motor for repeating the actions of a finger key on'its punch motor,

of a latch for holding said repeat motor in.

inoperative position,,a repeat key controlling said'latch, a trip interposed in the connections' between said repeat key and latch, an indicator movable progressively in accordance with the value of the indications in the strip, an abutment movable into and out of the path of the indicator, connections intermediate said abutment and trip for operating the trip, and connections intermediate the abutment and repeat key for moving said abutment into the path of the indicator when the repeat key. is operated to inaugurate the repeat action. Y

i 14:. In a record strip composing machine,

the combination with punches for forming the indications in the record strip, motors for operating said punches, finger keys controlling said motors, a repeat motorfor re- .'peating the action of a finger key on its punch. motor, means for locking said repeat motor out. of action, and a repeat key for releasing said repeat motor to inaugurate its action, sively in accordance with the value of the indications in the record strip, an abutment -with which the ems rack cooperates, movable into and out of the path of the rack, connections intermediate said abutment. and

repeat motor for arresting the movementoi when the repeat actionis to of an ems. rack movable progres-' the :latter upon the engagement of the rack with the abutment, and means for moving the abutment into the path of the rack be arrested at a predetermined point. I

v 15; In'a record strip composing machine, the combination'with means for making rec- .ord indications in a record strip, embodying motor mechanism and finger keys controlling the operation of said motor mechanism, and a repeat motor operative to repeat the actionof a finger key on its motor mechanism, of a latch forlo cking'said repeat motor in its inoperative positlon, a repeat key, a sprlng fornormally holding the latch in.

position to engage the repeat motor mechanism, connections intermediate the repeat key and latch for moving the latch out of its operative position agalnst the tension of its spring, an indicator movable .progres sively in accordance with the value of the operated record indicating devices, and means operated by saidindicator for releasing the latch independently. of the repeat key, whereby the repeat motor may be arrested while the repeat key. is held in its operated position.

1,6. In a record strip composing machine, the combination with means for forming in] dications in a record strip, finger keys controlling the same, and a repeat motor for repeating the action of a finger key on the record strip indicating mechanism, of a latch for locking said motor against operation, a repeat key, a pair of rods connected respectively with the latch and repeat key, a cross head on one of said rods and a co-' operating projection on the other, whereby the operation of the repeat key effects the release of the latch, an indicator movable In accordance with the value of the indica-' tions in the record strip, and connections intermediate said indicator and cross head whereby the latter will be released from its engagement with the'projection to arrest the repeat motor at a predetermined point in the movement of the indicator.

17. In a record strip composing machine, the combination with the punches for forming indications in a record strip, punch motors for operating the punches, finger keys, controlling the operation of the punch motors, a repeat motor, connections intermediate said'repeat motor and punch motors whereby the action of a finger key will be repeated automatically, of a latch for locking the repeat motor in inoperative position, an-ems rack, an adjustable abutment movable into and out of the path of the ems rack, a repeat key, connections intermediate said repeat key and latch embodying a trip, and mechanism intermediate the abutment and latch for releasing the latch at a predetermined point in the movement of the rack.

19. In a record strip composing machine,

the combination with punches for forming indications in a record strip, punch motors, finger keys controlling said motors, and a repeat motor for repeating the action of a finger key upon its punch motor, of mechanism for automatically arresting the action of the repeat motor embodying a latch for lockingthe motor out of action, an indicator movable progressively in accordance with the value of the operated punches, an abutment movable into and out of tlie path of the indicator, connections intermediate said abutment and latch, whereby the latch is moved into its locking position, a finger key, and connections intermediate said key and the abutment for moving the latter into the path of the indicator.

20. In a record strip composing machine, the combination with punches for forming indications in a record strip, motors for operating said punches, finger keys controlling said motors, and a repeat motoroperative to repeat the action of a finger key on its punch motor, of a latch for locking said repeat motor out of action, a spring for holding said latch normally in its lockin position, a repeat key for moving said latc into its unlocked position against the tension of its spring, an indicator, a series of abutments movable into and out of the path of the indicator, and connections intermediate said abutments and latch for releasing the latter when the abutments are engaged by the indicator, and connections intermediate said abutments and repeat key for moving said abutments into the path of the indicator, whereby the repeat action may be started and automatically arrested a succession of times during the formation of a line of composition.

21. A Valve bar for record strip composing machines, embodying a substantially straight body portion, a yoke at one end of said body portion extending laterally thereof, and a bell crank lever pivotally mounted at substantially the junction of itsarms in the laterally extending portion of the yoke.

22. A valve bar for typographic composing machines, embodying a substantially straight body portion, a yoke extending laterally from said body portion at one end and formed of parallel members, there being oppositely disposed guiding faces on the bar and yoke, respectively, and a bell crank lever pivotally mounted between the parallel members of the yoke, one arm of said bell crank lever normally extending substantially parallel with the body of the ba 23. A valve bar for typographic machines, embodying a substantially straight body portion having a. bifurcated extension at one end and a bell crank lever pivotally mounted between the arms of the bifurcation, said bell crank lever having a bearing surface on one arm normally extending parallel with the longitudinal axis of the bar.

JOHN SELLERS BANCROFT. MAURITZ O. INDAHL. JOHN OLOF HOFBERG.

Images