US1136083A - Machine for making composing-strips for automatic typographic apparatus. - Google Patents

Description

' A-. 'L. SALIZMAN. MACHINE FOR MAKING COMPOSING STRIPS FOR AUTOMATIC TYPOGRAPHIC APPARATUS.

APPLICATION FILED MAR. I3, I903- I I8G U I Patented Apr-20,1915,

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IIIIIIII JGRMWI-IBXZ A, i... SALTZMAN.

MACHINE FOR MAKING COMPOSING STRHS FOR AUTQMATIC TYPOGRAPHIC APPARATUS.

L on I W APPLICATION FILED MAR. 13, (903. L f

SQ Q Wi Patemed. Apr. 2%), 8 BHEETSSHEE' 2.

A. L. SALTZMAN. MACHINE FOR MAKING COMPOSING STRIPS FOR AUTOMATIC TYPOGRAPHIC APPARATUS.

5 1 9 1 0 2 p A d .w n .w a P APPLICATION F ILED MAR. 13, I903.

A TRB URRW iLvm A. L. SALTZMAN.

MAMHNE FUR (WUM CGMPOSING'STRIPS FOR AUTOMATIC TYPOGRAPHlC APPARATUS w {Mm APPLICATION FILED MAR. 13. 1903. J n I r 1. a flmm Fatenae. A r 20, 192.5.

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ilillmwtlnum illilii mlm 31m j AiPLlCATlON FILED MAR. 13. 1903.

. A. L. SALTZMAN. MACHINE FOR- MAKING COMPOSING STRIPS FOR AUTOMATIC TYPOGRAPHIC APPARATUS.

A. L. SALTZIVIAN.

MACHINE FOR MAKING COMPOSING STRIPS FOR AUTOMATIC TYPOGRAPHIC APPARATUS.

LA 3mm APPLICATION FILED MAR. 13, I903.

Patented Apr. 20, 1915.

8 SHEETS-SHEEI 6.

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v A, L MUN/MN. MACHINE FOR MAKWG CUMPOSING STRIPS FOR AUTOMATIC TYPOGRAPHIC APPARATUS.

APPHCATION FiLEDTviAR-13. i903.

Patented Apr 1915.

a SHEET8 g 7.

w g Q A. L. SALTZMAN.

MACHINE FOR MAKING COMPOSING STRIPS FOR AUTOMATIC TYPOGRAPHIC APPARATUS. APPLICATION FILED MAR. :13. 1903.

Patented Apr 20, 1915.

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AUGUSTE L. SALTZMAN, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, T0 JAMES Gr. COFFIN, TRUSTEE.

MACHINE FOR MAKING COMPQSING-STZRIPS FOB. AUTOMATIC TYPOGRAPHIG APPARATUS.

To all whom it may concern Be it known that I, AUeUs'rE L. SALTz- MAN, a citizen of the United States, residing at New York, in the county and State of New York, have invented a new and useful Machine for Making Composing-Strips for Automatic Typographic Apparatus, of which the following is a specification.

My invention relates to automatic typographic apparatus in which the impression or printing mechanism is controlled by means of a composing strip or ribbon. In such apparatus a strip or ribbon, usually of paper, is first marked to represent type characters, letters, 7 words, punctuation marks, numerals, 810., the marks occupying different positions on the strip corresponding to the characters represented. When the marked strip is fed through the impression or printing apparatus its marks control the working of the same and cause it to imprint the characters signified by the marks. In other words, the printing or typographic apparatus interprets the marks and translates them into type impressions. Besides type character marks, the strip is provided with other marks which represent and control the operation of the printing apparatus, to enable it toperform spacing and other operations and generally to govern its movements.

These and other objects of the invention will in part be set forth hereinafter and in part will be obvious to those skilled in the art. a a

The invention consists in the novel parts, devices, mechanisms, constructions, arrangements, combinations and improvements, herein shown and described. Y

'The accompanying drawings, referred to herein, and forming a part hereof, illustrate one embodiment of the invention, and with this specification serve to illustrate the principles of the invention.

Of the drawings: Figure 1 of those drawings shows a plan view of the machine. Figs. 1 and 1 are detail sectional vlews of the ram carriage actuating cylinder and valve mechanism Fig. 1 being upon a larger scale. Fig. 2 is an enlarged perspective view of a portion of the upper plate of the machine, showing the ram punches and other parts mounted thereon. Flg. 2* 1s a detail view of the ram carriage and stop Specification of Letters Patent.

Patented Apr. 2d, 1915.

Application filed March 13, 1903. Serial No. 147,616.

pins. Fig. 3 shows a side elevation of the machine, looking from the right of Fig. 1. F ig. 3 is an enlarged sectional view of the release valve shown near the front of Fig. 1 mounted upon the base-plate 1. Fig. 4: is a section on line AA, Fig. 1. Fig. 1 is a broken view, partly in section, of the rear of plate 3 of the machine, showing the controller strip or ribbon and the frictional tension device for the same. Fig. 4 is a detail view of the unit-gage. Fig. 5 is an enlarged detail View, partly in section, showing the inner end of a key lever, its engagement with the stop pins, the means for actuating one of the escapement levers, and the release mechanism for the unit counting wheel. Fig. 6 is an enlarged detail view, partly in section, showing the side elevation of the parts shown in Fig. 2.. Fig. 6 is a detail view showing the actuating means for the escapement lever shown in Fig. 6. Figs. 7 and 8 are elevation and plan views respectively on an enlarged scale of the unit storing and justifier setting mechanism, shown below plate 3 of the machine in Fig. 8. Fig. 7 is a detail view, showing the connection of the finis key with the alarm mechanism, and also with the rack pinion. Fig. 7 is a horizontal sectional view of the end of the unit storing rack shown in Fig. 7. Fig. 8 is a sectional view on line 00a7 Fig. 8. Fig. 8 is a detail of the scale, and shown in Fig. 8. Fig. 8 is a sectional view on line y-y, Fig. 8. Fig. 9 is a longitudinal sectional View of the machine on line B B, Figs. 1 and 3. Fig. 9 is a detail view, showing the unit wheel and connections. Figs. 10, 10, 10 and 10 are sectional and detail views illustrating the construction and operation of the ram carriage and the stop pin returning device. Fig. 11 is a broken perspective view, partly in section, showing the parts cooperating with the key levers to actuate the ram caris a section on line z -z, Fig. 15, with the valves and valve stems removed. Fig. 18 is a perspective sectional view of the valve box, shown in Figs. 15 and 17, on line 'vo. Fig. 19 is an end view of the face of the plunger. chamber shown in Figs. 15 and '16. Fig. 20 is the vertical cover plate for the vertical portion of the'air channels shown in-Fig. 18. Fig. 21 is a detail, showing retaining means for the unit gage.

Referring to the accompanying drawings, which illustrate by Way of example one embodiment of the invention,'and for the prescut more particularly to Figs. 1, 3 and 4; the machine is mounted on a suitable base, 1, above which are.carried,- upon suitable posts, 22, a main plate, 3, which, in turn, carries upon suitable posts, 4, a top plate. 5. The machine is provided (see Fig. 1) with a suitable keyboard, having keys which correspond to typographic characters, and having in addition thereto special keys designated the Line key, Finis key, Justification key, Space key, and a series of shift keys shown at the left of the keyboard in Fig. 1. The character keys, through suitable mechanism, hereinafter described, ac-

tuate marking devices to mark the strip with the marks which represent the several typographic characters corresponding to the several character keys. The marks, in accordance with certain features of the invention are made along transverse lines of the strip and thestrip is automatically fed forward a line-space at a time for each new line of marks, but in other of its features the invention is applicable to controllers -having the marks thereon differently arranged. The special keys, except the justification key, the finis key, also mark the controlling stripv with corresponding marks. The mark made in the controlling strip is shown as a perforation, and the marking devices are shown as a series of punches operating through a die plate. While I prefer to employ a perforated mark, I do not, however, restrict my invention to any particular kind of mark, but may use an indented mark, or a slotted mark, and provide'marking devices suited thereto.

Other features ofthe invention and of the present embodiment not already mentioned will be referred to later at various points in the specification.

For convenience in reading the specification and ease in understanding the machine, I have utilized various captions or titles for various portions of the mechanism, but it will be understood that such divisions are a matter of convenience and are not restrictive in character.

Stm'p feeding mama 'lhe strip or ribbon in the illustrated embodiment is fed through the machine, as shown in Figs. 2, 3, 4 and 6, by means of rollers, 16 and 18, the course of the strip being indicated by the dotted lines, Fig. 6. Roller 16 is provided with sprocket teeth, 17, which engage perforations along the margins of the strip, as shown in Fig. P and insure a positive feed.

Roller 18 is afriction roller which keeps the ribbon or strip in contact with the feed roller 16, and insures the engagement of sprocket teeth 17, with the marginal holes of the ribbon. A channel 17 is cut in roller 18 to receive sprocket teeth 17 and permit the rollers 16 and 18 to come into contact with the ribbon.

In order to keep the ribbon or strip in proper position when passing across the face of the die block, and to keep it taut as it is fed through the machine, so that no wrinkling or buckling may occur, a friction drag is provided (see Figs. 4 and 1), consisting of a spring-pressed roller 18 mounted below the die block or plate 5 of the machine. Said roller is supported in arms 18" secured to a rock shaft l8 journaled on plate 3. Springs 18 surround the rock shaft with one end respectively bearing on the arms 18*, and the other bearing against plate 3. Roller 18 presses the ribbon against a friction surface 18 which consists of a bar or strip covered with billiard cloth or felt.

The embodied form of means for causing the strip to feed forward for a new line is shown in Figs. 6 and 11, and is as follows: On one end of sprocket roller 16 (shown in dotted lines) is a belt pulley 16. This ulley is drivenby a belt connection witi a friction pulley 200 on shaft 201 mounted on plate 3 of the machine. (See Fig. 11). A pulley 202 on the end of said shaft is connected to the'source of power. The shaft 201 also drives the justification mechanism through suitable gearing (not shown), as in the application before referred to. On sprocket roller 16, adjacent to the belt pulley, is a toothed escapement wheel 16"; a fork-shaped escapement lever 16 pivoted on a stud 16 on the bracket 16 engages the teeth of the escapement wheel and thereby normally holds the sprocket feed roller from rotation. The escapement lever is held with one prong in engagement with the escapement wheel by means of a spring, 16 surrounding the stud 16, and pressing against its other prong, as shown. The tail-piece,

16 of escapement lever is provided with a spring latch, 16, of the same construction as latch 86 of a similar escapement lever, 56, shown in Figs. 5, 7 and 14:, hereafter described. On the lower side of top plate 5,

ton is attached to the lower side, the plate 5, and is supplied with air through pipe 16", and air cylinder 140 from source of air supply. The admission of air to pipe 16 is controlled by valve 189, which is actuated by the carriage 10 (see Fig. 2) when it reaches the end of its travel and also as carriage stops at any shift stop pin, as hereinafter described, so that every time the carriage 10 engages the stem of valve 139 air is admitted through pipe 16 to the rear of piston 16, urging the same forward and .carrying with it the tail-piece 16 of the escapement lever. A spring, 16*, is provided to return the piston and arm, 16, to normalposition. The escapement wheel is momentarily freed and roller 16 is revolved through its belt pulley untilthe escapement lever again engages the escapement wheel. Arm 16 acts as a cam and insures an advance of but one tooth at a time, equivalent to a ribbon feed of one line space.

T he lceg actima The keys are connected to suitable lever arms, 6, (Figs. 1, 3 and 4) mounted upon plate 3, and pivoted at the point 7 intermediate their ends. At the inner extremity of each key lever is mounted a spring extension, 8, (shown more clearly in Figs. 5 and 11). This spring extension is situated beneath the push rods 9, and upon depression of a key said push rods are projected upwardly through the medium of the key lever and its spring extension, and push stop pins 9 into the path of ram carriage 10, as shown in Figs. 2 and 4, a yielding and elastic key action is secured by the construction described and the extra motion of the key lever is taken up by said spring extension.

The keys and key levers, in the illustrated embodiment and in accordance with certain features of the invention, are employed to set stops in the path of a reciprocating carriage, as will be hereinafter more fully explained. As embodied, the stop pins 9, (Figs. 1, 2- and 4) except those for the shift keys, are arranged in two rows, as clearly shown in Figs. 1 and 2, the pins in each row being opposite the spaces between the pins of the other row. By this arrangement the ram carriage 10 is engaged in both directions of its movement. In one direction the projected pins of one row will engage it, while on its return movement it will be engaged by projected pins of the other row.

The stop pins are formed U-shape ivith two upwardly extending limbs, 9", and 9. Fig. '2) the limb, 9 is provided with an enlarged end to be engaged by the stop pawls on the ram carriage and arrest the same in its travel when the stop pin is projected upwardly by depression of its corresponding key. The limb 9 of the stop DlDSTOl'DlS a means for the return of a projected stop pin, as hereinafter described. The stop pins,

being made of spring material, have friction or pressure in the apertures in which they move to remain in the position to which they are moved.

As will be seen from Figs. 2 and 4, the stop pins pass through the carriage runway or guide-plate, 19. Stop bars 9 9 are threaded between the limbs of the stop pins and limit their. upward and downward movement-the crotch of the pin limiting the former, and the shoulder of the enlarged end 9 limiting the latter movement.

The ribbon marking mechanism The invention, in one of its aspects, provides a series of stationary punches and 'dies corresponding to the perforations to be made in the controller, and an actuating device common to all said punches and actuating them successively in accordance with the keys actuated. The invention provides further in connection with such series of stationary punches and dies, acommon actuator traveling along said series of punches, and successively actuating the punches selected by the keyboard. The invention provides further for arresting such common traveling punch actuator by means of the stops projected from the keyboard. I provide further as such actuator a traveling interponent having the punch actuator mounted thereon and means for operating said punch actuator at any point along its travel. The actu-.

ating device for the punches may conveniently be called a ram. The interponent may be traveled by any suitable means, so far as concerns many features of the invention, but in accordance with one feature thereof and as embodied in the illustrated form, I provide fluid pressure means therefor, and the ram carriage in the machine illustrated is actuated by air pressure supplied to a suitable piston 11, reciprocating in its piston 184, described in detail at a later point (Figs. 1*, 1, 2 and 9), and is thereby caused to travel transversely across the machine above the lines of the stop pins. By the key action, stop pins corresponding to the key depressed are projected into the path of, and arrest, the carriage at corresponding points in its travel.

The stationary punches of the series is each reciprocably mounted in line with its die, the punches being spring restored after actuation. These punches (Figs. 1, 2, i and (ii are carried in apertures in suitable guide plates 14, 14 upon plate 5 of the machine. Each punch is provided with a coiled spring 13, working between the face of the aperturcd member 14 and a collar 18 fixed on the punch, the spring being compressed when the punch is thrust forward into the die and afterward restoring the punch to position. The collar 13 when the punch is restored rests against the face of the apertured plate 14, thereby limiting the backward movement of the punch to position it for action by the ram to return it to normal position after each operation. A die-plate 15 is provided, as previously indicated. with a series of die-apertures corresponding to the punches. Between the rear guide' 14: (Figs. 2 and 4) and the die-plate 15 is a narrow slot 15, through which passes the controller strip to be perforated.

As before described, the ram carriage travels upon a suitable guide-way 19. Its construction is best shown in Figs. 1, 2, 4 and 6. It carries a ram or plunger 20, for actuating the punches successively. In the embodied means for actuating the plunger 20 at the various points along its travel, the plunger is providedwith a T shaped head (shown in Figs. 2. and 4) engaged by a reciprocable presser bar 22 extending along the path of travel of the ram, said bar 22, having a correspondingly T shaped channel 23, in which said plunger head slides. The presser bar 22 is reciprocably mounted in suitable guides 24:, at each end of said bar. To the rear side of bar 22 from said channel 23, it is pivotally connected to three toggles 26. The other ends of each of said toggles is fixed to a'shaft 22 journaled in suitable bearings on the machine frame. The shaft 22 and the three toggles thus move together and give a uniform stroke or impression for the ram 20 at all points along its path of travel. In the embodied form, said bar is actuated by means of the middle toggle 26, to the knuckle of which is connected a tie rod 27, (see Fig. 6). Means are provided for actuating same for each depression of a key. for which there is a corresponding punch. As embodied, rod 27 passes down through an opening in top plate 5, as shown in Figs. 2, 4, 5, 6 and 11, and its lower end is connected to an intermediate point of a lever 40. The rear end of lever 40 is pivoted to the lower side of top plate 5, and its front end engages a three-ribbed barrel or cage 39 on shaft 37.

' Each rib of the barrel rocks arm 40 to a position where the rib rolls off the arm causing its release. A spring 40 returns lever 40, tie rod 27, and toggle 26 to position after each movement caused by the rotation of shaft 37. Shaft 37 is driven by means of its friction pulley 38, having belt connection with any convenient power shaft, the movement of shaft 37 being governed by the key action, as will be presently explained.- The depression of lever 40 by the rotation of the barrel or cage 39, straightens the toggle and thereby reciprocates bar 22, which projects the ram 20, which drives a punch 12 opposite which the ram is then at rest, throughthe ribbon or strip.

In order to remove the punchings or particles of paper punched out of the strip,

10) engages in an aperture 30 of the plunger 20. The horizontally extending member of said bell-crank 29 is pivoted to a plunger 31, projecting downwardly through the carriage and ram 20 to engage with a rack 32, (Figs. 2, l0, l0") situated between the double line of stop pins 9. The teeth of this rack are of such height as to hold the carriage until the ram has returned to 'a position that will allow it to clear the projecting ends of the punches. A lost motion'in aperture 30 between the ram and the bell-crank permits plunger 31 to lock the carriage at first advance of ram 20 and unlock it at last part of its return.

Upon the side of the carriage, (Fig. 2) and pivoted in lugs 33, projecting laterally therefrom, are stop pawls 34, 35 the upper ends of which are engaged by spring fingers 36. Each of these stop pawls is situated directly above one of the lines of stop pins 9. Upon the upward projection of a stop pin through the actuation of its key, one of the stop pawls 34: or 35, according to the direction of movement of the ram carriage, is engaged by said projected stop pin, and the carriage is arrested.

By the arrangement of two rows of stop pins and the spring-retained stop pawls on the carriage, the projected stop pins in one row arrest the carriage traveling in one direction, and the projected pins of the other row arrest the carriage in the other direction. If the carriage should meet a pin in the return row before it encountered one in the out row, the spring-retained stop' pawl allows the carriage to pass oversaid return-row pin leaving it to be engaged on its return trip. The carriage thus engages the pins in order of sequence as it encounters them on its out and return trips. Upon the arresting of the carriage, the toggles 26 are actuated on the next key stroke, projecting the ram 20, which strikes the punch opposite thereto, forcing the same through the paper and making a perforation in the strip in a position on a transverse line corresponding to the character represented by the previous key struck. At the same time the forward movement of the ram actuates the plunger 31 projecting same into engagement with the rack 32, at the same time returning the projected stop to normal position by means of its return limb 9, which is immediately below said plunger, thereby returning the stop pin to normal position out of the path of the stop pawls of the carr1a e.

ll t will be understood that the foregoing together with the cooperating parts and devicesv constitute one embodiment of delayed action means, that is, the perforation of the controller occurs one key stroke later than the depression of the corresponding key. This gives opportunity for correction'of a very large proportion of errors in operation, as the operator is usually aware of an erroneous key stroke as soon as made, and thus opportunity of correcting it before it is marked in the controller. j g

The position of the carriage when arrested by a stop pin is shown in Fig. 10, where the stop pin 9 is shown as having been returned by the plunger 31 and the carriage about to assume the position shown in Fig. 10*.

Since it often occurs that the same character, is repeated and the mark for the same character always occupies the same position in a transverse line, that is transversely of the controller, means are provided to cause the mark for this repeated character to be made on a new line. In the present embodiment, with this in view, plunger 31 is allowed a slight clearance or play between the teeth of rack 32 (see Fig. 10). Upon the return ofthe stop pin by means of plunger 31, the carriage moves over a slight distance farther in the same direction, said movement being permitted by the above mentioned clearance shown in Figs. 10 and 10? between the plunger 31 and the teeth of the rack 32. Fig. 10 shows the carriage in position as arrested by a stop-pin and the plunger 31 as having just returned the stop pin. The relative positions of the stop pin and stop pawl on the carriage in this position are indicated in the view on the left in Fig. 10. From this position, the stop pin having been returned, the carriage moves over to the position shown in Fig. 10". This slight additional movement of the carriage brings the pawl 34' immediately above the stop pin, as clearly shown in Fig. 10 and the central view of Fig. 10*, so that if the same stop pin be actuated twice in succession, it will, upon the second actuation, free the carriage from the rack and throw up the pawl 34, as shown in view on right of Fig. 10*, thereby permitting the carriage to proceed to the limit of its travel where it operates valve 139, as before explained, to cause a feed movement of the ribbon or strip. The carriage thus makes a complete journey before returning to the projected stop pin, and a forward feed movement of the controller stri or ribbon is thereby insured before the per oration for the repeated character is made. This results in the second perforation for the re-.

peated character being .made on a separate,

ed and stored, and the difference between the composed line and the standard line, or

line measure, must be eliminated by changing the. size of the word, or interverbal,

spaces. In the present machine, each key represents a plurality'of characters, namely, five, there being suitable mechanism cooperating therewith to select any desired character or depression of the proper key stem. Means are therefore provided in the present embodiment for counting the width or unit value of each character put into the line, taking due account of difierences in width or value of the different characters or shifts of any particular key. There is provided a unit gage or a member movable with the various shifts for a given key to keep the unit record in accordance with the value of the particular character selected of these belonging to the articular key. In the embodied form of such means, attached to each of the character key levers, and depending therefrom near their forward end, is an interponent 41', in the upper end of which is formed a slot which engages a pin projecting from the side of the key-lever. Surroundlng said interponent is a spring 42,

' shown detached in Fig. 4". This unit gage is providedwith wings 0r vanes 45*, each being movable into operative relation with the other parts of the unit counting mechanism to correspond with the shifts from one of the characters to another represented by a key. In the machine shown, the unit gage is represented as having five vanes corresponding to the five shift keys in the key board, Fig. 1. Each one of these vanes correspond to a given face of type; for instance, upper case roman, lotver case roman, upper and lower case italics and f small ca s. It is understood that the unit gage nee not be limited to five vanes, but maybe provided with any desired number,

the number of shift keys in the keyboard being increased or diminished to correspond to the number of vanes. The need for a gage having vanes corresponding to the different faces of type is occasioned by the varying number of space units" which a given character may occupy in the different faces 'of type. Each vane of the shift gage is provided with notches, as shown in Fig. 4*. These notches have depths corresponding to the space unit value of the characters they represent. Upon depression of a given key, the interponent attached thereto is depressed and is moved into the corresponding notch in the unit gage.

Certain of the keys in the key-board, for instance, shift, line and finis keys have no unit value, but have punches corresponding thereto. It will be apparent that when these keys are operated the unit counting and storing mechanism must notbe allowed to count and store any units for these keys. For this purpose the unit gage 45 is formed to prevent theadvance of the interponents 41 corresponding to these keys. Thus a stop is formed on the unit gage representing a zero unit value; the unit gage being thus prevented from advancing the unit counting and storing mechanism will be prevented from operation, as will be seen from the following: The rock arms 44 carry a bail rod 46, extending across the machine adjacent the lower ends of the interponent. The rock arms 44 are actuated from a beltdriven shaft, 46 through the medium of a connecting rod, 47, one end of which is attached to bail rod 46, the other end being.

attached to one member of a clutch, 48,

mounted loose on shaft 46*, hereinafter described. (See- Fig. 9 Said shaft 46 is provided with a friction pulley 49, (see Figs 9 and 9*) connected by belt with a source of power. Said shaft 46 is normally held from rotation by means of ratchet wheel 60 (Figs. 3, 5 and 9*) fast thereon, and a pawl, 50, on the end of a bell-crank lever,

51, pivoted upon a stud, 52, carried by a post, 53, upon the main plate, 1, of the machine. The other arm of the bell-crank lever 51 carries a friction roller, 53 which en- I gages the operative face of a cam, 54, mount- -t'ions and friction roller 53 ed upon the belt-driven shaft 37. Gain 54 is-provided with elevated and depressed poris held against said cam by means of spring 53*. Pawl 50 is raised out of engagement with wheel 60 by means of the cam through the medium of the bell-crank, and is returned into engagementwith the ratchet wheel by the action of spring 53 which forces the friction roller on the bell-crank to rideinto the depressed portions of the cam face.

Ratchet wheel 60 is provided with three sets of teeth, viz., on its edge and on its two side faces, asshown inFig. 13 of the drawratchet another bell-crank lever 61 pivoted on plate 3 of the machine. The other arm of said bell-crank lever 61 engages a sleeve 62 loosely and slidably mounted on shaft 46. Said sleeve 62 is provided at one end with a toothed arm, 63, the tooth of Which is in position to engage the crown teeth on the side of ratchet wheel 60 adjacent thereto. At its other end sleeve 62 is formed with a clutch member 48 and a collar 48 by which it is engaged with the forked end of the bellcrank 61, as described. (hitch 48 has a pin engagement with a mating clutch member, 48*, loosely mounted on shaft 46, but held from sliding longitudinally thereon by means of a collar 48, engaging a projection on bracket 48 Clutch members 48 and 48 have a pin engagement 64 (see Figs. 9 and 9 the pins being of such a length that engagement is preserved between the members when the sleeve 62 is slid toward ratchet wheel 60, causing it to be driven by the belt pulley 49 and at the same time throws the sleeve 62 and its pawl 63 into engagement with the crown teeth of the ratchet wheel 60 on the side adjacent thereto, and thereby causes said pawl and clutch members 48 and 48 to be moved by said ratchet-wheel. Said movement thrusts forward rod 47, which, in turn, rocks bail-rod 46, and carries the in terponent of the depressed key into the notch of the unit gage presented to it. The extent of movement of the ratchet wheel 60 is thus limited by the depth of the notch in the unit gage presented to the depressed interponent, and as the depth of the notch reprethe ratchet wheel is proportional to the space unit value of the operated key. A spring 44", Fig. 9, surrounding rock shaft 44 and engaging rock arm 44, returns the bail-rod and connected parts to normal position.

The movement of cam 54 and its shaft 37 is controlled by the key action through the medium of a three-toothed wheel 55 fast on said shaft and an escapement lever 56 en- .gaging therewith. (Figs. 5 and 11). Mounted to engage with-said escapement wheel is a forked escapement lever 56 adapted to engage the teeth ofthe escapement wheel 55 and hold the same from rotation. Said escapement lever 56 is pivoted upon a stud 57, and is provided with a depending arm 58. It is normally held in engagement with one of the teeth of the escapement wheel by means of a spring 59 surrounding the stud 57, and engaging one arm thereof. Upon actuation of the escapement lever, by means hereinafter described, shaft 37 is released and free to be driven through its belt pulley 38 until the next tooth on the escapement riaepee wheel is arrested by the escapement lever which has been returned to normal position by means of its spring 59, or by the arm 56 which is struck by the teeth of the wheel 55 as they pass it and thereby insures the movement of the other prong of said lever into the path of the succeeding tooth of the wheel. This insures the escape of wheel 55 i maintain bail-rod 95 in contact with key levers 6. One of said arms94:extends beyond the bail-rod and engages valve rods 96, 97. Valve rod 97 has a slotted engagement with arm 94 and said valve-rod is made'to fit friction-tight in its passage in the valve casing. To this end, a friction device may be employed, as shown at 97 The object of the friction fit of valve rod 97 is that it will remain'in Whatever position to which it may be moved.

In Fig. 5 of the drawing, valves 96 and 97 are shown in normal position. Upon operation of a key, bail-rod 95 and arms 94c, 94: are moved upwardly. This movement raises valve 96 and thereby opens communication between the source of air pressure coming from pipe 97 and the cylinder 92. Piston 91 in said cylinder is connected with an arm, 89, fast on one end of a rock shaft, 87, which has fast on its other end a finger, 88. See Fig. 6) When cylinder 92 is opened to the air pressure, as described, finger 88 is rocked by its connections with piston 91 and en-- gages the spring latch 86 in the tail-piece 58 of the escapement lever 56, which extends into the path of said finger 88. The return movement of the finger 88 and piston 91 is accomplished by means of a spring, 87, surrounding the rock shaft bearing and pressing against finger 88.

Valve rod 97 is ,not affected during this first movement of arm 94: by reason of its slotted engagement therewith and its friction-fit in its casing. Just before the end of its upward movement, however, arm 94 picks up valve rod 97 and'thereby shuts ofi' the air supply to cylinder 92. Finger- 88, and piston 91, are then returned by the action of spring 87* to normal position. Owing to the beveled rear faces of spring latch 86 and finger 88, the latch is enabled to ride over the finger on this return movement. In the meantime arm 94 has been returned to normal position by the action of spring 95 onits rock shaft 95*. The first portion of this return movement closes valve 96, leaving valve 97 in its raised position. At thelast part of the return movement arm 94: depresses valve 97 and returns it to position shown in Fig. 5, in readiness for the next key operation. By these means, piston 91 and its connections are operated only once for every complete up and down movement of bail-rod 95 and arm 94:. 4

If desired, mechanical means may be employed, insteadoof fluid pressure, for actuating finger 88 and cscapement lever 56. T have illustrated such means in Fig. 14. Rock shaft 95* in this modification is at an intermediate point of arm 94, instead of at one end, as in the modification shown in Fig. 5. The end of arm 94;, opposite to that carrying bail-rod'95' is connected by a rod 99 with one arm of a bell-crank lever, 100, pivoted on plate 3 of the machine. The other arm of bell-crank lever 100 constitutes the finger 88, which trips escapement lever 56.

At each movement of the escapement lever 56 shaft 37 is free to rotate, and through the mechanism above described ratchet wheel 60 is rotated by an amount which corresponds to the unit value of the character represented by the operated key. Each tooth of the ratchet Wheel corresponds to one space unit, so that the unit value of a given character is represented by the number of teeth passed over by toothed arm 63 in its return movement.

U m'z registering or storing mechanism.Tn order that the matter being composed may be divided into-lines of a uniform and predetermined length, each line containing the same number of units, means are required to register ,or store the units occupied by each character and space, so that when the op-' wheel by means of a spring-pressed arm 71 will represent the unit value of the character with said pinion.

pressure cylinder, 140, mounted below the base plate. By the rotation of the ratchet wheel as each key is operated, rack 65 is gradually moved toward the rear of the machine and against the fluid pressure in cylinder 140. It will thus be seen that the rack, by its movement, stores or registers thetotal unit value of the characters and spaces as they occur in the matter being composed, until the limit for which the rack is set is nearly reached, when an alarm, hereinafter described, notifies the operator that the line is within a known number of units of the full line.

When the rack65 has reached the limit of its movement for any given line, or has so of justification lever 106 will produce no nearly reached that limit that a complete Word or proper division of a word cannot be included in that line, the justification movement of rack and there will be no justification made.

Assuming that the justification mechanism has been set, it become's necessary to return racks 65 and 115 to their initial posi tion in readiness for a new line of composition. This-is accomplished by the following means: The finis key is depressed. To the key lever of this key is attached by stud 75 a slotted arm 76 (see Figs. 7 and 7) the slot 77 of which is in engagement with an arm 78, projecting laterally from rock shaft 79, above described. During the movement of this key lever, the same operations are performed as are performed by the character keys, with the exception, however, that no space units are count d, the operation of this key serving merely t actuate the punch corresponding to the previously operated character key. The unit gage. at the point opposite the interponent of the finis key is of such a height that there is no movement of the rod 47 and sleeve 62,

and, consequently, no movement of the unit wheel 60. At the latter part of the depression of the finis key lever, the upper end of slot 77 engages arm 78 of rock shaft 79 and 1,13e,oss

swings forked arm 71 away from the ratchet wheel 60, thereby disengaging the crown teeth of the pinion 66 and ratchet wheel 60. Latch 74 thereupon snaps into engagement with pin 73 and holds the pinion away from the unit wheel.

Pivoted on bracket 81, which supports one end of the rock shaft 79 is a spring-pressed latch 74, in position to engage a pin 73 on an extension of arm 71 Beneath latch 74 is a pin 83 forming the stem of a piston contained in cylinder 84 mounted on the baseplate of the machine, and having connections 85 with a source of fluid pressure. The admission of pressure fluid through the connection 85 to cylinder 84 is controlled by means of a valve 150 in cylinder 151 supported on the base-plate of the machine. The stem of said valve 150 projects beyond its cylinder 151 in position to be engaged by rack 65, (see Figs. 3 and 3*). The port in valve 150 is so arranged that when said valve is in its extreme left position, as shown in Fig. 3, communication is open through connections 85 from a fluid pressure supply to the piston 83 so that when rack is in initial position, it'abuts against the projecting stem of valve 150, pressing the same, against the action of spring 152, to'its extreme left position, the left end of the stem or valve 150 forming a stop to limit the movementof the rack. In this initial position ofrack 65 the fluid pressure communieating through connection 85 with the piston 84 throws the same upwardly, and thereby releases latch 74 from engagement with pin 73. As soon as the rack moves rearweardly in the operation of the machine, the fluid pressure in cylinder 84 is cut off by the movement of valve 150, valve stem 83 consequently drops and latch 74 also drops, its movement being assisted by its spring. In this position latch 74 will engage pin 73 when the pinion is moved away from ratchet wheel 60 by the depression of the finis key, as above described. Latch 74 retains the pinion 66 in disengaged position from the ratchet wheel 60, so that the action of the fluid pressure in cylinder 140 is free to return the rack 65 toits initial position. On reaching that position, the end of rack 65 strikes the stem of valve 150, forcing it back until its opposite-end strikes the head of cylinder 151, 'thus arresting rack 65 and opening the cominunicationof connection 85 with the fluid pressure. Piston83 is accordingly forced. upwardly, releasing the loop 73 from latch 74 when the spring 82 on rock shaft 79 will return the pinion into engagement with the ratchet wheel.

Rack 65 is provided with an alarm mechanism to notify the operator of the approach of the end of the line. This mechanism is as follows: A metallic contact point 153 on its lower side, and a springcontact arm 154,

mes es having electrical connection with an ordinary electric bell 155, issupported on the base-plate 1 of the machine at a point near the limit of movement of rack 65. The electric alarm 155 has connections as shown in Fig. 7, with an insulated stud 156 (see Fig. 7 fitted in plate 3 of the machine adjacent the link 76 depending from the finis key lever. A spring-pressed contact piece 157 is pivotally mounted to the lower side of plate 3 in position to make contact with insulated stud 156. Said contact-piece 157 has projecting from one side thereof a pin 158 extending below but not in contact with arm 78 on rock shaft 79. The contact-piece 157 is maintainednormally in contact with the insulated pin 156 by means of its spring 157, the electric circuit including the spring contact arm 154, the alarm bell, pin 156, and from thence through the contact-piece 157 through the machine to the contact point 153 upon the rack65.

When rack 65 in its rearward movement 153 into contact with arm 154 the electric circuit is complete and the alarm rings, notifying the operator that he has approached the end of the line. He will then, after setting the justification mechanism, as above indicated 0 crate the finis' key to cause the return of t e rack to its initial position.

The depression of the finis key and arm 78 breaks contact between the insulated pin 156 and contact-piece 157, thereby opening the circuit so that when the fluid pressure in cylinder 140 moves rack 65 backwardly, its contact point 153 in passing contact 154 does not sound the alarm because of the open circuit between contact-piece 157 and insulated pin 156. Thus the alarm ring: only on the rearward movement of the rac Rack 65 is provided with the following adjustment for settin the machine to compose lines of any pre etermined length: To the side of rack 65 is attached a spring leaf 129 provided at its end with a stud 128. slide 126 provided with a series of perforations 127 slides between said spring leaf and the rack. Near its end rack 65 is provided with a hole 130 (Fig. 7") registering with pin 128. For lines of shorter length, slide 126 is pulled outwardly by first raising pin 128 out of engagement with the end perforation in said slide, and the slide is adjusted to the proper extent which may be conveniently indicated by means of a scale or graduations 159 marked on the base plate 1 of the machine. When the slide-piece is adjusted to the required length, stud 128 will sna wit and the hole 130 in rack 65 thus holding slide piece 126 in its adjusted position.

In order that the operator may see at a glance how many units are to be added to the line of justification and consequently into the perforation in register thereof units-which the line lacks of the uniform length. It will be understood, however, that there is no computation or setting of the mechanism by the operator, as the ustifying is mechanical and automatic.

Justz'ficatz'on setting mechanism-The machine herein described and illustrated is designed and intended to coiiperate with a justification mechanism which may be similar in all its essential characteristics to the justification mechanism fully described and shown in application of Charles T. Moore Ser. No. 130,459, filed Nov. 7, 1902. A description of said justification mechanism in the present application is, therefore, not necessary, and such mechanism forms no part of the present invention. The connections to such or a similar justification are shown in the drawings.

Back 116 (Figs. 3 and 7) is the rack which enters and controls the marking of the justification ribbon by releasing the punch slides of the justification mechanism, as described in the former application above mentioned.

Said rack 116 is actuated by the operation of justifying lever 106 as follows :J ustifyin lever 106.is pinned, that is, fixed to a rock shaft 104 journaled in brackets 102, 103 rising from base-plate 1. (See detail view Fig. 8). A stop-piece 105 is also pinned to shaft 104 and is provided with a stop-lug 107. Loosely mounted on shaft 104 is arm 108, to which is pivotally connected one end of a rod 109. This rod extends to the mechanism, hereinafter described, for setting the justification mechanism. A spring 122 is loosely coiled about shaft 104 with one of its ends bearing against the front edge of lever 106 and with its other end bearing against arm 108 and keeping said arm in contact with stop-lug 107 By these means, whenever the justifying lever 106 is pulled, stop-piece 105 being fast on the same shaft, is moved a like amount, and spring 122 moves arm 108 to follow stop-lug 107 Spring 122 forms an elastic connection between lever 106 and arm 108, so that no undue force exerted in the manual operation of said lever can be transmitted to the j ust1- fication mechanism. A further advantage derived from spring 122 will be explained below. Rod 109 is pivotally connected at its rear end with an arm 110 pinned to a rock shaft 112, journaled in brackets 112"",

(See dewith said sector is rack 116 which enters and controls the justification mechanism. Loosely mounted on shaft 112 is a sleeve 113 carrying a toothed sector 113 meshing with stock-rack 115. Also carried on sleeve 113 is a ratchet wheel 117, and a spring case 125. A spring pawl 118 is mounted on the side of arm 110 and is normally held out of enga ement with ratchet wheel 117 by means of a cam-piece 120 on bracket 112, with which the tail of pawl 118 engages.

- Operation of the justification lever 106, will, through connecting rod 109, move arm 110, carrying with it pawl 118, the tail of which will pass out from under cam-piece 120 and the point ofwhich will engage with ratchet Wheel 117'fota tIng same and with it sectors 113 and 114. These sectors are proportional the one to the other, and the advance of rack 115 is the same unit for unit as rack 65, and for anymovement of sector I 113 and its rack 115 a proportional movement of sector 114 and rack 116 will take place. The movements of said sectors and racks are equivalent to a unit or multiples of a unit.

As above explained, the movement of rack 115 is determined by the position of rack 65.

Said rack gradually approaches rack 115 during the operation of the machine as 1t stores or registers the units in a line of composed matter of the predetermined length.

If the unit value of a line of composedmab' ter should be exactly equal to the unit value of the predetermined length of line for which the machine is set, rack 65 will have reached the position when its end abuts against the end of rack 115. In this case no justification will be required and no movement of rack 115 or rack 116 can take place when the justification lever is operated. Said lever will have its usual movement, but this movement will be absorbed by spring 122, as explained. Thus no strain will be put upon the rack, sectors or justification mechanism.

In the case where the unit value of a line of composed matter is less than that of the predetermined length of line for which the machine is set, rack 65 in its final position for that line will not have reached the end .of rack 115 and there will be a space left between the ends of these racks. This space will represent the number of units that line lacks of the predetermined length. Movement of the uStification lever 106 will, in this case, move rack 115 toward rack 65 until it is arrested thereby. Back 116 will be moved into the justification mechanism a proportional amount to cause that mechamsm to make the n quired. In order to hold rack 115, and its sector inadvanced osition, a s ring pawl 121 is provided, WhlCh is pivote to bracket 112 so cessary justification rethat its point can engage ratchet wheel 117 and retain it in whatever position to which it may be moved.

In initial position pawl 121 is held out of engagement with ratchet wheel 117 by means of a piston stern 123, which is 'arranged beneath the tail-piece of said pawl, the piston of which is actuated by fluid pressure in cylinder 124 mounted in the base plate. This cylinder has connection with the source of fluid pressure through the same branch or pipe 85 as that which supplies cylinder 84: above described, and its action is governed by the same valve 150 which governs the fluid pressure in said cylinder 84. Thus, in the starting or initial position of rack 65, pawl 121 is held out of engagement with ratchet wheel 117. As soon as rack 65 registers the first unit value, piston stem 123 drops and pawl 121 moves to en; gage ratchet wheel 117, so as to hold rack 115 in advanced position when the justification lever 106 is operated.

In advancing, rack 115 winds up spring case 125, so that when justification has been made and the finis key has been depressed, as before explained, and rack 65 and pinion 66 released from unit wheel 60, and the return of rack 65 by fluid pressure in cylinder 140, valve 150 is opened and fluid pressure is admitted to cylinder 124, whereupon piston stem 123 is moved upwardly, strikes tail of pawl 121, releasing it from ratchet wheel 117, whereupon spring case 125 returns rack 115 to initial position. Thus the operation of the finis key returns rack 115, as well as rack 65, to initial position. Rack 116 is thrown into the justification mechanism, when lever 106 is pulled, and said rack is withdrawn by the return of lever 106. It will be understood that while the lever 106 is manually actuated by the operator, this is merely a mechanical actuation, such as could be provided by automatic drivingmecha- IllSIIl such as are provided for the other parts of the machine, if this were found desirable.

An adjustable stop or set-screw 161 is provided at the rear of base-plate 1 (see Fig. 3) to limit the return movement of pack 115 and also to adjust its initialposiion.

Shift mechanism.Means are rovided whereby a perforation will be media in the controller at the proper point to control the shift mechanism in the typographic machine,. and means are also provided 005perating therewith for controlling the unit counting and storing mechanism. More particu arly, in, the present embodiment, means are provided whereby the unit ga is moved in accordance with the changes in the shift mechanism. The machine herein descrlbed and illustrated is provided with'a series of shlft keys to control the automatic typographic apparatus with which the stri or ribbon marked by this machine is inten ed to cooperate, so that said typographic apparatus will select characters from the various type-faces or type-cases designated by the particular shift perforation upon the. strip. The shift keys are clearly shown at the left of the keyboard in Fig. 1 of the drawings, marked U U (upper case italics), Z0 (lower case italics) lc (lower case roman), UC (upper case roman), so (small caps). These keys are provided with corresponding punches for marking perforations in the controller strip or ribbon and in the embodied form the marking mechanism is so arranged as is hereinafter described, that the shift perforation corresponding to any of these keys is placed upon a separate transverse line on the ribbon, the ribbon being automatically fed forward one transverse line-space on the operation of any of the shift keys. The means for causing said feed movement of the controlled ribbon are as follows: The stop pins corresponding to the various shift keys are of somewhat different construction from those corresponding to the character keys. Figs. 2, 12 and 12- of the drawing show the form of these stop pins. They are provided with loosely pivoted fingers 132 on their rear faces. Upon each of these pivoted fingers is a stud 133 engaging a square aperture 134- in a slide 135 mounted to slide endwise longitudinally in the carriage guidewa 19. Upon the upward projection of a shi t-key stop by depressionof its key, said finger 132 assumes the position shown on right of Fig. 12, projecting slightly in advance of the stop pin. The carriage being released from its previously actuated stop pin, engages said pivoted arm 132 and by means of the stud 133 thereon and its engagement with v the slide 135, said carriage forces said slide endwise, (see Fig. 12*) so as to strike an arm 136, (Fig. 2) pivotally mounted upon the top plate 5 of the machine. The carriage is brought to rest by the stop 9 as for any other stop pin. Said arm 136 is engaged at its forward end between two depending fingers 138 on the valve stem 139, the valve of which controls the fluid pressure to the piston 16 which actuates the eseapoment lever 16 controlling the ribbon feed roll 16 thereby causing an escapement of said roller and a forward feed of the ribbon or, strip one transverse line-space. The carriage will, after being arrested by shiftkey stop pin, proceed to the limit of its travel before encountering any other stop pin, since the shift key stop pins are arranged as shown, near the end of its travel. The escapement lever will therefore again be actuated to cause another feed movement of the controller ribbon by the carriage striking valve stem 139. Any character stop pin encountered by the carriage on its return movement after striking valve stem 139 will therefore have its corresponding perforation made upon a new transverse line.

As above explained, the unit-gage 45 is provided with five vanes corresponding to the fife shift keys. The notches of each vane represent the unit values of the char acters in each type case or shift.

The following mechanism, (Figs. 1, 3, 1, 15 to 21) is provided to move the vane corresponding to the projected shift key into position to be engaged by the interponents: The unit-gagehas its ends journaled in suitable brackets on plate 1 of the machine. On one end of the gage is fast a friction driving pulley 45 (Figs. 1, 2 and 3), having belt connection with the source of power. Shift- key levers 6, 6, (Figs. 15 and 16) are provided with depending valve-stems 162 connected with valves 163 working in a valve box 164 supported on the base-plate 1 of the machine. Fluid pressure is admitted from the source of pressure supply to said valve box by connection 165 which connects with a common feed channel 166 in said valve box. Leading from said.feed channel are five conduits 167 each of which communicates with a stop plunger 168 mounted in a circular casing 169. The conduits 167 are governed by valves 163 which pass through apertures 169 therein so that normally said conduits are closed by said valves. When, however, a shift key is depressed, the consequent depression of its corresponding valve 163 opens communication for the fluid pressure to pass through the conduit governed by said valve to stop :lunger 168 causing said plunger to be projected beyond the face of its casing 169 and to stand in the path of an arm 170 mounted on a. shaft 171 formed on the end of the unit gage 45. Mounted on plate 3 of the machine is a. rock-shaft 172 provided with arms 173, 173 carrying a bail-rod 174 extending to the left beyond the left arm 173 and provided at its outer end with a spring finger 175 arranged in position to engage the upper end of a pivoted latch 176 on the plunger casing 169. The lower end of said latch is yoke-shaped and engages a collar formed on clutch-piece 177. Said clutch-piece is provided with a connecting pin 179 at one end and a return pin 178 at its other end. An arm 170 is pinned to the unit-gage shaft 171 so as to rotate there-' nith, and is provided at one end with an a erture 170 to receive the connecting pin 1 9 on clutch-piece 177. At its opposite end arm 170 moves close to the face of casing 169 so as to be intercepted by the stop plungers 168 which are projected into its path.

Upon depression of a shift key, bail-rod 174 is depressed, its finger 175 striking latch 176 and moving its lower yoke-shaped end inwardlyv carrying clutch-piece 177 toward arm 170 ,on the unit-gage shaft 174. By reason of the pin connection 179 between the clutch-piece 177 and arm 170, return pin 178 registers with the last projected stop plunger; so that when moved inwardly as described, said pin returns the projected plunger, and air is admitted by valve 163 before the pin is restored so as to insure the pin being in the path of the lever before the latter is released. At the same time fiuid pressure is admitted through the channel 167 corresponding to the depressed shift key to one of the plunge l's 168 corresponding thereto, said lunger. being projected beyond the face of casing 169. The unit gage being free to rotate upon the return of a plunger, the arm 170 is rotated therewith until it is arrested by the projected plunger 168 corresponding to the depressed shift'key. The gage is thus arrestedin position to bring the vane corresponding to the operated shift key into position to be engaged by the interponents. As soon as finger 175 has passed the point of latch 176, spring 180 surrounding the shaft-of the unit gage returns carrying return pin 178 free of arm 170, thus permitting it to rotate, while connecting pin 179 remains in engagement with arm 170, said arm being bent outwardly as shown for that purpose. The return movement of the bail-rod 174 caused by its spring 174 on the rock-shaft 172, does not actuate arm 176 on account of the spring mounting of finger 175 which gives way as it. passes the arm 176. Upon the next operation of a shift key,

clutch-piece 177 is again projected inwardly by the action of the finger on bail-rod 174, thereby returning stop plunger 168, last projected, by means of return pin 178, while at the same time the stop plunger 168 corresponding to the last operated shift key is projected in the path of the arm 170 arresting the same in position to bring its corresponding gage-vane into proper position to coiiperatewith the interponents.

In order that the unit-gage may always be brought to rest in exact position to present its vane to the interponent, a notched wheel 181, (Figs. 17 and 21), is provided .on the opposite end of the unit-gage shaft in position to be engaged by a springretaining pawl 182, the nose of which snaps into the notches of the unit wheel 181 insures the same being brought to rest in proper position, so as to present and retain the vane corresponding to the operated shift key in exact position to the interponents.

'm-riage operating meoham'sm.The carriage carrying the plunger for operating the punches is actuated by means of fluid pressure as follows: Said carriage is adjustably connected, by means of screw-threaded and lock-nut connection, as shown, with one end of a piston rod 183 having at its other end a piston 11 moving in pressure cylinder 184 mounted on the top plate 5 of the machine. Said cylinder and its valve conneotions'are shown in Figs. 1, 1 and 1 Fluid pressure is supplied to said cylinder through connection 185 and its admission and exhaust is controlled by means of a valve 186, ports 187,187 and passages 188, 188, which connect respectively with the two ends of the pressure cylinder 184. Valve 186 is of the form and construction shown in Fig. 1", having fullportions 189 which open and close the entrance ports 187, 187, and cutaway portions 190 by which connection is established between the pressure supply passage 185 and the ports 187. The central full portion of valve 186 is also cut away on its rear face so as to afford passage for pressure fluid, from the supply connection 185 to either of the cut-away portions 190. The chamber 191 in which said valve moves is open at each end forming exhausts for the pressure fluid through exhaust ports 192 from the pressure cylinder 184 to the atmosphere. In order that the exhaust may be rapid, ports 192 are in the form of slots cut in the forward wall of the valve chamber 191, thus giving exhaust ports with a lar e area.

alve 186 is actuated by the same fluid pressure as actuates the piston in pressure cylinder 184, the control of said air pressure being accomplished by the movements of valve 186 controlled by the movement of the carriage itself. In order to effect the above stated results, pivoted arms 193, 193 are arranged on the top plate 5 of the machine having their forward ends arranged at the extremities of the travel of the carriage in position to be struck thereby. The rear ends of said arms are connected by tierod 194, (Fig. 2), which is adjustably connected, by means of a screw-threaded sleeve 195, with the stem of a valve 196, (Fig. 1") controlling the admission of pressure fluid to a piston 197 having its stem connected with the stem of valve 186. Pressure fluid is led to piston 197 through the connection 198 from the fluid pressure supply 185. Pivoted arms 193 are friction tight on their pivots so as to remain in the position to which they are moved by the carriage.

Upon the carriage reaching the left extremity of its travel (with reference to Fig. 1), the pivoted arm 193 at the left is actuated by the carriage striking it, the valve 196 is moved to the right, opening communication for the fluid pressure to the right hand side of piston 197. This piston is thereby moved to the left carrying with it valve 186 which in its movement to the left opens the left air port 187 and places the left side of

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