US2307071A

US2307071A - Typographical composing machine

Info

Publication number: US2307071A
Application number: US390558A
Authority: US
Inventors: James C Plastaras
Original assignee: Mergenthaler Linotype GmbH
Current assignee: Mergenthaler Linotype GmbH; Mergenthaler Linotype Co
Priority date: 1941-04-26
Filing date: 1941-04-26
Publication date: 1943-01-05
Anticipated expiration: 1960-01-05

Description

Jan. 5, 1943. J. c. PLASTARAS 2,307,071

I TYPOGRAPHICAL COMPOS ING MACHINE Filed April 26, 1941 46 Sheets-Sheet l jala VENTOR Jan. 5, 1943.

f J. C. PLASTARAS .TYPOGRAPHICAL COMPOS'ING MACHINE Filed April 2e, 1941 e sheets-sheet 2 ZILNVENTR Y e sheets-sheet s Jan. 5, 1943. J. c. PLAsTARAS TYPOGRAPHICALVCOMPOSING MACHINE Filed April 26, 1941 Jan. 5, 1943.

J. C. PLASTARASl TYPOGRAPHICAL COMPOSING MACHINEl Filed April 26, 1941 '6 Sheets-Sheet 4 INVENTOR di@ @y/MJ ATTORNEY Jan. 5, 1943. J. c. PLAs'rARAs TYPOGRAPHICAL COMPOSING MACHINE Filed April 26, 1941 MAA/UAL AUTO/VIA T/C INVENTOR 1% BY @W7 /LC E y v/ ATTORNEYS Patented Jan. 5, 1943 .lames C. Plastaras, Laurelton, N. Y., assigner to Mergenthaler Linotype Company, a corporation of New York Application April. 26, 1941, Serial No. 390,558

(Cl. M- 45)V 51 Claims.

This invention relates to typographical com' posing machines, such as Lintoype machines of the general organization represented in Letters Patent of the United States No. 436,532 to O.

'Mergenthalen wherein circulating matrices are released from a magazine in the order in which their characters are to appear in print and then assembled in line, the composed line transferred to the face of a mold, the mold lled with molten metal to form a slug cr Linotype against the `matrices which produce the type characters thereon, and the matrices thereafter elevated and returned through distributing mechanism to the magazine from which they started.

More particularly it rela-tes to a power operated magazine shifting device and has vits greatest utility Where the machine is equipped with a plurality of magazines arranged to be moved upwardly and downwardly in the machine to bring one or another into operative relation with the assembling and distributing mechanisms. Various schemes have been suggested for raising and lowering the magazines by power, and, in one instance, the power has been supplied through an hydraulic arrangement comprising a cylinder supplied to the cylinder below the piston to raise the magazines and the pressure on the liquid relieved so as to allow the eiect of gravity to lower the magazines. Such a device, however, is slow nected between the magazine shift frame and the fixed machine frame. The opposite ends of the cylinder are interconnected by a passageway so that liquid can flow from one end of the cylinder vand piston and wherein liquid under pressure is? 'y or sluggish in operation, requires special relief` i expediente because of the inccmpressibility of the liquid to avoid damage to the parts should they encounter undue resistance in operation, and possesses many other disadvantages.

The present improvements consist in the provision of a pneumatically operated magazine shifting arrangement, employing as the operating medium compressed air or other suitable gas.

vThe illustrated mechanism includes a cylinder and piston device connected between the magazine shift frame and the fixed machine frame, with provision for supplying air at both ends of the cylinder so that air pressure can be used to lower the magazines as well as to raise them. The weight of the magazines, as well as the associated parts that move with them, is counterbalanced, so that the same air pressure (which is relatively small) can be used to move the niagazines in both directions, and furthermore, the speed of both 'operations can be made substantially the same.

A device for controlling the speed of the shifting operations is provided in the nature oi a hydraulic cylinder and piston arrangement conto the other, and a port is arranged in the passageway to control the speed of liquid flow. Thus, when the magazines are raised, the liquid will flow from one end of the cylinder through the port to the opposite end of the cylinder and, when the magazines are lower, the liquid will flow in the reverse direction, the size of the port controlling the rate of flow. Provision is also made in the mechanism for automatically slowing up the movement of the shift frame as any magazine thereof reaches its operative position, the purpose of this being to permit an automatic locking device which holds the selected magazine in its operative position, to operate smoothly and Without objectionable shock to the mechanism.

Also, in accordance with the invention, the locking device just referred to is operated by air pressure. Thus, preparatory t0 shifting the magazines in either direction, air is supplied to a cylinder and piston arrangement which acts to withdraw the locking device to permit the magazines to be shifted; and, when a selected magazine approaches the operative position, the air pressure is released, permitting a spring to effect reengagement of the locking device with the magazine shift frame When said frame has reached the exact new position of adjustment.

The invention further contemplates a special control unit arranged at the front of the machine within easy reach of the operator and presenting a single handle by which the magazines and the automatic locking device are conjointly operated. In addition to those control functions, the handle will, in its initial movement, operate the usual feeler devices associated with the assembler entrance an'd with the distributing mechanism, for indicating whether or not the magazines are free to be shifted. Also, the handle will, by its position at any time, indicate which of the magazines is in operative position. Furthermore, if desired, there may be provided in each different position of the handle, a suitable recess to receive a marker or tag descriptive of the font of matrices contained in the corresponding magazine.

Referring to the drawings:

Fig. 1 is a side elevation of a portion of a typographical composing machine equipped with the present improvements;

Fig. 2 is a front elevation of that portion of the machine illustrated in Fig. l, but with the magazines, assembler entrance, and distributor removed so as better to illustrate the details of the improved device;

Fig. 3 is a sectional view taken on line 3-3 of Fig. 1;

Fig. 4 is a sectional view taken on line -fl of Fig. 3;

Fig. 5 is a sectional view taken on line 5-5 of Fig. 4;

Fig. 6 is a sectional View taken on line S-B of Fig. 3;

Fig. 7 is a sectional View taken on line 'I-'l of Fig. 6;

Fig. 8 is a sectional view taken on line 8 8 of Fig. 7;

Fig. 9 is a diagrammatic View showing different positions of adjustment of a valve through which the supply of air to the raising and lowering device is controlled;

Fig. 10 is a front elevation, partly in section, of the cylinder and piston arrangement by which the shift frame is moved and of the hydraulic cylinder and piston arrangement by which the speed of the shifting movement is controlled;

Fig. 11 is a detailed view of the element that controls the effective area of the port in the passageway connecting the opposed ends of the speed control cylinder and piston arrangement;

Fig. 12 is a vertical sectional view taken in a fore-and-aft direction through the cylinder and piston arrangement controlling the magazine locking device; and

Fig. 13 is a side elevation of a portion of the unit for controlling the magazine shifting device and illustrating different positions occupied by the handle during the substitution of one magazine for another.

The matrices are stored according to font in the superposed channeled magazines A, four of which are shown herein, but of which a greater or lesser number might be employed if desired. The several magazines are removably supported on separate base frames B conjointly constituting a shift frame which is arranged to be moved upwardly and downwardly in the Xed machine frame C to bring any selected magazine into operative relation with the assembler entrance D at the front and the distributing mechanism E at the rear. Each of the magazines A is provided with a series of matrix releasing escapements A1 which, when the magazine is brought into operative position, are actuated under the control of the keyboard mechanism Dl in the usual way.

In the instant machine, the lowermcst magazine base frame, and consequently all of the superposed magazines with their respective base frames, are supported by a frame F consisting of a rear vertical member (see Figs. 1 and 2) formed with two laterally spaced angular shaped side members F1 with an interconnecting crosspiece F2 at the top, and consisting also of a front member arranged at an angle with respect to the rear member but perpendicular to the base .framework of the machine. mounted one at each end of said transverse shaft,

`of the shift frame.

wards the adjacent fixed framework of the machine and engages between anti-friction rollers C1, two pairs of the latter being provided at each side of the machine, one pair being located near the top of each flange F5, and the other pair near the bottom thereof. The rollers C1 are all mounted on studs fixed in the framework of the machine and consequently permit the shift frame to ride upwardly and downwardly with very little friction. The lateral adjustment of the shift frame is maintained by two adjustable set screws C2, one at each side of the machine and threaded through the xed machine frame, the screws engaging the outer edges of the side frame flanges F5 previously referred to.

The whole magazine structure is counter-bal` anced in the machine and, for this purpose, there is provided a transverse shaft G (see Figs. 1 and 2) journalled at its opposite ends in the fixed Pinions G1, xedly mesh with rack bars G2 secured one to each of the side elements F3 of the shift frame and facing toward the front. Also xed on the transverse shaft is a pair of drums G3, located one near each of the pinions G1 and formed with a series of peripheral grooves G4. The grooves act as guides for a series of straps G5 which pass around the drums, the straps at one end being fastened to the drums and at their opposite ends being connected each to the upper end of an individual vertically arranged spring G6 anchored at its lower end in a fixed cross member C3 of the framework. There is one spring provided for each magazine with its supporting frame, and an additional spring for the remaining portions The springs act as a unit to counterbalance the weight of the parts just referred to.

The arrangement is such that, if a magazine with its supporting frame is added or removed, a corresponding spring can likewise be added or removed, in order to maintain the balance at all times. Furthermore, in order to compensate for variations in force exerted by the springs, depending upon their degree of stretch, which in turn depends upon the location of the shift frame, the drums are spiral in form, presenting different effective radii at the points where the straps leave the drums, depending upon the degree of spring extension. Thus, looking at Fig. 1, when the shift frame F is lowered, the rack bars G2 thereon, through the associ-ated pinions G1, will rotate the transverse shaft G in a clockwise direction so as to decrease the effective radius of the drums as the springs are extended, and, likewise, when the shift frame is raised, the transverse shaft G will rotate in a counterclockwise direction so as to increase the effective radius of the drums as the springs are contracted. In other words, the variations in force exerted by the springs, due to their expansion and contraction, are compensated by inversely varying radii at which the springs act so as to exert a torque on the shaft tending to balance the shift frame, which torque is substantially constant at all times.

The rack and gear arrangement further serves to prevent any sidewise tilting of the shift frame and, in order to insure a proper adjustment of the magazines with the assembler throat and the distributor, provision is made for a slight eniwise adjustment of the rack bars with respect tn the shift frame elements on which they are mounted. The means for effecting the adjustvmachine frame.

ment comprise set screws g threaded through lugs g1 located one above and one below each rack bar and mounted on the frame elements F6. The adjustment` Yis effected by loosening screws g2 which hold the bars on the frame,

backing off one set screw, taking up on the other,

and then tightening the holding screws.

The magazine shift frame is raised and lowered by means of a pneumatically operated mechanism comprising a cylinder H and piston H1, connected between the shift frame and the fixed frame of the machine (see Figs. 1, 2 and 10). The cylinder H has a base H2 formed with a pair of depending spaced lugs H3 straddling the upper end of an arm C4 forming part of a bracket C6 xedly mounted on a crosspiece C6 of the fixed The two lugs, as well as the intermediate arm, are drilled to receive a bolt (not shown) by which the cylinder H and the arm C4 are connected together. The piston is designed to prevent the leakage of air past it and is connected by means of a piston rod H4, passing upwardly through the cylinder head, to a bracket F6 bolted to a crosspiece of the lowermost magazine base frame. The connection between the bracket F6 and the piston rod H4 includes a pair of spaced lugs F7 depending from the bracket and straddling the piston rod, at its upper end, the lugs and the piston rod being drilled to receii'e a transverse vpin h formed with a head at one end and held in place by means of a cotter pin `extending transversely through the pin at the other end. The cylinder head is constructed with a gland H encircling the piston rod so as to render the cylinder head air tight where the piston rod extends therethrough. Both the cylinder head and the cylinder base are drilled and tapped to receive connections H6 and H7 through which compressed air can be supplied to the cylinder both above and below the piston. When air is admitted to the cylinder H below the piston H1, the latter will move upwardly in the cylinder to 'rai-se the magazine shift frame, whereas when air is admitted to the cylinder above the piston, the latter will move downwardly in the cylinder so as to lower the shift frame. During the admission of air to either end of the cylinder, it will be understood that the opposite end 4of the cylinder is vented to the atmosphere, the specific means for accomplishing this purpose being described hereinatfer. It might be stated here that, since the shift frame, together with the magazines supported thereby, are counterbalanced, the air pressure necessary to effect the raising and lowering of the shift frame is relatively low, a pressure of approximately 25 pounds per Vsquare inch having been found suitable for the purpose. The low pressure also avoids the danger of damaging the parts should any of the latter stick during operation.

Because of the ease with which the counterbalanced shift frame can be moved, it has been found 'desirable to control the speed at which the shift frame movement is effected. The mechanism for this purpose is showngin Fig. 10, It is a hydraulic device comprising a cylinder J and piston J1 arranged alongside `of and parallel to the cylinder and piston mechanism operating the shift frame and, like said mechanism, connected between the shift frame and a fixed part of the machine in much the same manner. In other words, the hydraulic cylinder Ihas a base J2 provided With lugs J3 connected to an arm Crlv projecting upwardly from Vthe fixed bracket C6,

while a piston rod J4, connected its lower end to the piston, has its upper end connected to lugs F8 formed on the shift framebracket F6 by a pin h1 similar to the pin lz.

v The base J2 of the cylinder J is formed with a port J5 vconnecting the cylinder below the piston with a passageway J6 arranged parallel with the v'cylinder and extending upwardly to the cylinder head J 7, which likewise is provided with a port J8 connecting the passageway J6 with the cylinder above the piston. According to this arrangement, when the magazine shift frame is raised, it will move the piston J1 upwardly in the cylinder, causing liquid (oil) with which the cylinder is filled both above and below the piston to flow through the port J8 in the cylinder head into the passageway J6 and thence through the port J5 in the cylinder base into the cylinder below the piston. And, similarly, when the magazine shift frame is lowered, the piston Jl will move downwardly in the cylinder J, thus displacing liquid below the piston and causing it to flow in the reverse direction to the other end of the cylinder above the piston. The speed of liquid ow at a given pressure depends upon the minimum cross-sectional area of the passageway or ports between the cylinder head and base and, as this area is constant except under conditions hereinafter referred to, the rate of now and, therefore, the rate of movement of the shift frame will be constant. Actually, the normal minimum cross-sectional area is found in an apertured washer J9 located between the port J8 and the passageway J6.

Since the movement of the piston J1 corresponds at all times with the movement of the shift frame, -it is obvious that the extent of upward movement of the piston equals the downward movement thereof when any two given magazines are interchanged. Consequently, in shifting between magazines, the amount of liquid displaced by the piston upon an upward stroke will be less than that displaced by the piston upon a downward stroke of equal extent because of the presence of the piston rod J4 in that portion of the cylinder above the piston. Accordingly, means are provided to compensate for this difference. The means provided for the purpose include a liquid reservoir J10 located in the cylinder head Jrl above the cylinder proper and which is more than large enough to contain an amount of liquid equal to the total displacement of the piston rod in the cylinder when the piston is at the lowermost end of its stroke. A port Jil, located in the cylinder head, provides a communication between the bottom of the reservoir J10 and the top of the passageway J6, the port ordinarily being closed by a ball valve J 12 urged to closing position by a spring J13 reacting between the ball and the apertured washer J9 located near the top of the passageway. According to this arrangement, when the piston moves upwardly in the cylinder, suction is created -due to the fact that the amount of liquid displaced by the piston above the cylinder is not sufficient to fill the larger volumetric displacement below the piston. The suction thus created will displace the ball from its seat against the action of .its associated spring, allowing an amount of liquid from the reservoir to enter the passageway J6 which will be sufficient completely to iill the cylinder below the piston. On the other hand, when the piston J 1 is moved downwardly, the amount of liquid displaced is in excess of that required vto lill the cylinder above the piston and,

i ment.

accordingly, means are provided for allowing the excess liquid to bleed back into the reservoir.

For reasons which Will be described hereinafter, a portion y of the port J8, connecting the upper end of the cylinder J with the passageway J9, is located in a rod J14 arranged for limited vertical movement in a hole drilled in the cylinder head J" at the base of the reservoir J1. When this rod is in its lowermost position, the portion j of the port located therein registers with the remaining portions of the port so that no obstruction to the now of liquid therethrough is created. The means for bleeding the liquid back into the reservoir comprises two small passageways 7'1 (see Figs. 10 and 1l) communicating with the portion :i of the port located in the rod at diametrically opposite portions thereof and communicating also with vertical grooves i2 formed in the cylindrical surface of the rod J14 and which extend above the bottom of the reservoir when the rod is in its lowermost position.

The main purposes of the vertically movable rod will now be described. Ordinarily, the movement of the shift frame is at a relatively rapid rate, making it desirable tov slow up the movement somewhat as the magazines approach their respective operative positions. For this purpose, there is provided mechanism which includes, in addition to the rod J14 just mentioned, a bell crank lever J15 pivotally mounted in a grooved extension J16 of the reservoir wall, and which has one arm thereof extending horizontally into the reservoir, where it is pivotally connected at the top of the rod. The other arm of the bell crank lever extends upwardly and is provided at its upper end with a nger J1'I arranged to engage one edge of a bar F9 xed at its upper end on the bracket F6 to which both piston rods J4 and H4 are connected, the bar thus being constrained to move with the shift frame. The bar is guided against lateral movement by a pair of spaced lugs J18, projecting from the boss .116 formed on the reservoir wall, and against edgewise movement by the boss itself and by a pin J19 extending between the lugs and which engages that edge of the bar remote from the reservoir wall. The ringer J 17, mounted on the bell crank lever J15, is urged into engagement with the bar F9 by a compression spring J20 reacting between the 'base of the reservoir and a collar J21 mounted in a'groove in the rod J14 about midway of its length. In that edge of the bar F9 which is engaged by the nger J1'1, there are provided a series of notches F spaced at regular intervals corresponding to the spacing of the magazines. In other words, whenever there is a magazine in operative position, there will be a notch F1o in the bar F9 correponding thereto and located opposite the nger J1?. When the finger J17 is, located in a notch F19, the rod J14 will be located in its uppermost position, as shown in Fig. 10, and the port portion 7' located therein will be located above its normal position of alignment with the other portions of the port J8 so as to cut off the opening through the port to a substantial extent. Of course, when the port J 8 is partially closed in this manner, the iiow of liquid therethrough will be substantially retarded. However, when the nger J17 rides up onto a high portion of the bar F9 (i. e., a portion between the notches), the bell crank lever J will be moved in a manner to depress the rod .114 against the action of its spring J1o to its lowermost position wherein the various portions of the port J8 will be in complete align- Under this condition of adjustment, no L retardation of liquid ow through the port will occur. As shown, the ends of the notches F1J in the bar are bevelled so that, as the bar moves with respect to the finger, the movement lof the latter into and out of the notches will be'a gradual one.

From what has been said, it is evident that when the magazine shift frame is moved to bring a different selected magazine into operative position, the initial movement of the bar F9 will cause the finger J1'z to ride up on a high portion thereof, thus depressing the rod J11 and opening the port J 8 to its full extent, with the result that the shift frame will move at its maximum speed. Then, as the selected magazine approaches itsioperative position so as to bring the corresponding notch F10 in the bar opposite the finger, the rod J1", under the action of its associated spring, will rise gradually as the finger rides down into the notch, with the result that the flow of liquid through the port is gradually reduced. This in turn causes the selected magazine to decelerate evenly as it is brought to rest in its operative position, with a complete absence of shock to the parts. The gradual deceleration will also permit the automatic magazine locking device to function evenly and smoothly.

To complete the description of this phase of the invention, it might be stated that a removable cover plate J 21 is provided for the reservoir J1o in the event it is necessary to replenish the liquid. Where the piston rod J 1 passes through the cover plate, a gland .122 and oil cavity .T23 are provided for lubricating the piston rod at this point. Provision is also made for adjusting the position of the finger J1'I with respect to the bell crank lever J15, should such adjustments become necessary. It will also be noted that one of the vertical slots i2 in the rod J14 extends to the base thereof to permit egress of the liquid from the-pocket at its base (see Fig. 11).

Before describing the mechanism that controls the flow of air to the cylinder I-I to effect the raising and lowering of the magazine shift frame,

- mention will first be made of the magazine locking device. This locking device includes two reciprocable bolts K located one at each side of the machine and adapted to enter notches F11 formed in bars F12 fastened one to each of the lateral extending flanges F5 forming part of the front elements of the shift frame (see Figs. l, 3 and l2). The bars are fastened at the front of the flanges by machine screws extending through the flanges from. the rear. One notch F11 is provided in each bar for each of the magazines, and the notches are located so as to be directly in register with the bolts K when the corresponding magazine is in operative position. To insure this relation, lugs f (see Figs. 1 and 3) are fastened to the flanges above and below the notched bars, with set screws f1 threaded through the lugs to engage said bars respectively at the top and at the bottom. The adjustment is effected merely by loosening the screws holding a notched bar F12 in position, backing off one set screw and taking up on the other until the proper adjustment is secured, whereupon the notched bar holding screws are again tightened.

The locking bolts K themselves are slidably arranged in brackets K1 secured to side elements of the machine framework and are operated isimultaneously by a pneumatic device includinga cylinder K2 and piston K3, which device is located on a xed part of the machine frame near the right hand side (see Figs. l, 3 and 12). The intermediate operating mechanism between the cylinder-and-piston device and the bolts includes a transverse shaft K1 journalled at its opposite ends n the machine frame and a pair of arms K5 pinned to the shaft, one of said arms, namely, that at the right, being formed with a depending crank portion K6 which is operated by a piston rod K1 associated with the piston proper K2. Each arm K5, at its upper end, is formed with a bifurcated portion K8 straddling a pin K9 eX- tending inwardly from its associated bolt, so that the bolt can be moved by its associated arm positively in either direction.

The piston K3, together with piston rod K1, are arranged for limited travel in the air cylinder K2, being, however, normally held in their forward positions by` a relatively heavy spring K10 encircling the piston rod and reacting between the piste-n and the rear end of the cylinder. Provi'- sion is made for admitting air under pressure to the cylinder at the front side of the piston, that is, the side opposite that against which the spring acts, an air line K11 and connection K12 for this purpose being shown. A portion of the piston rod K1 extends beyond the rear end of the cylinder K2 and is provided with a pair of spaced collars K13 pinned to the rod at this point. The crank arm K0, operated by the piston, is bifurcated at its lower end so as to straddle the piston rod between the two collars located thereon. The bifurcated portions of the crank arm between the collars have their opposite edges rounded off as at K11 so. as to accommodate the limited lengthwise movement of the piston rod.

According to the arrangement just described, when it is desired to move the shiftI frame to bring a diierent magazine into operative position, air under pressure is admitted to the cylinder K2 in advance of the piston K3, causing the piston, together with the piston rod K1, to move from the solid line positionshown in Fig. 12 to the dotted line position shown therein. This movement of the piston rod, through the crank arm connection K6, rocks the shaft K4, and consequently the arms K5 connected to the bolts K, in a counterclockwise direction, thereby withdrawing the bolts from their active positions in the notches F11, as shown by the solid lines in Fig. 12, to inactive positions as shown by the dotted lines in said figure. The shift frame is then free to be moved, the bolts K remaining in their inactive positions, free of the notches, until the pressure on the piston K3 is removed. When the selected magazine has arrived in operative position, the air pressure is cut off, whereupon the 1 piston is returned to normal position by the compression' spring K10 and, at the same time, through the intermediate mechanism described, the bolts will be restored to their normal active positions in the notches corresponding to the `newly selected magazine in operative position. The top and bottom edges at the active ends of the bolts K, as well as the outer top and bottom edges of the notches F11, are slightly bevelled so as to insure the ready entrance of the bolts into the same. It will also be observed that the cylinder K2 on that side of the piston wherein the spring is located is vented to the atmosphere as at K15 for reasons which will be well understood.

The admission of air to the cylinder K2 of the shift frame locking device and to the cylinder H of the shift frame raising and lowering device is controlled from the front of the machine by a pair of valves which, although distinct in themselves, are conjointly operated. The valves are 75 located in a common housing L fastened to a brakcet C8 mounted on the xed machine frame near the front thereof (see Fig.. l). This housing L at the left (looking at the machine from the front) is formed, as shown in Figs. 4 and 5, with a verticalchamber having an enlarged ul@- per portion L1 to accommodate the limited movement of a mushroom-type valve L2, and a reduced lower portion L3 with which an elongated stem L1 forming part of the valve, has a sliding nt. In other words, the reduced portion of the chamber acts to guide the valve L2 in its vertical movement. The valve is normally held on a bevelled seat L5, formed where the upper enlarged and reduced lower portions of the chamber meet, by a spring L0 reacting between the upper face of the valve and the lower end of a screw L7 threaded into the chamber L1 and which closes said chamber at the top. The valve L2, just above the mushroom portion thereof, is formed with areduced cylindrical portion Ls which is encircled by the Spring L6 and thus acts to hold the latter inposition. Sufhcient clearance is provided between the top of the cylindrical portion and the base of the screw to allow for the vertical movement of the valve. The upper enlarged portion L1 of the valve chamber is at all times connected with at suitable source of air pressure through a pipe line L9, whereas the lower reduced portion L3 of the valve chamber, i, e., the portion below the valve seat is connected with the cylinderl K2 forming part of the shift frame locking mechanism, the connections being through a port L10 in the valve housing and the pipe line K11. The pipe line can be traced in Fig. 1.

The valve stem L4, in the portion thereof adjacent the port L10 through which the air passes to the cylinder K2 just referred to, is reduced in cross-section so as not to interfere with the passage of air, and at about the level where the larger and smaller portions of the stem meet there is provided at port L11 (Figs. 5 and 8) which connects the lower valve chamber L3 with the atmosphere. The Valve stem Ll1 extends somewhat below the valve housing and is adapted to be engaged by an operating element hereinafter to be described. Suffice it to say at the moment, when it is desired to operate the shift frame, the valve stem L1 is pushed upwardly against the action of the spring L0 so as to close thevent port L11 and lift the valve L2 fromits seat, whereupon air will flow from the upper valve chamber L1 (which, as will be recalled, is connected with the pressure source at all times) through the valve into the lower valve chamber L3 and thence through the port L10 and pipe line K11 leading to the cylinder K2 of the shift frame locking device causing the latter to be operated in the manner hereinbefore described to release the shift frame for movement. As the newly selected magazine approaches operative position, the valve stem L1 is released, permitting the spring L6 to close the valve and shut off the air pressure from the cylinder K2. As the Valve'L2 is closed, the lower port L11 is again opened, thus venting the cylinder K2 to the atmosphere to reduce the air pressure therein. This reduction in air pressure in the cylinder K2 permits the spring K10 through the piston K3 to urge the locking bolts K rearwardly, ready to seat in the notches F11 corresponding to the selected magazine when the latter reaches the operative position. As registry is attained, the bolts snap into the notches and thus hold the shift frame against further movement.

The valve for controlling therflow of air to the cylinder H of the magazine raising and lowering device is selectively operable to permit air to be furnished to the top or the bottom of the cylinder, depending upon whether the magazine shift frame is to be lowered or raised. This valve mechanism is best illustrated in Figs. 6 to 9. It presents a somewhat fiat circular high pressure chamber M communicating through an inlet port M1, in the rear wall thereof, with the enlarged upper portion L1 of the other valve chamber which, it will be recalled, is connected at all times with the source of fluid pressure. There are three outlet ports M2, M3 and M4, leading from the chamber M through the front wall thereof, the two outermost ports M2 and M3 communicating, one (the port M2) with a chamber M5 located at the top of the valve housing near the front and connected with the top of the air cylinder H through the pipe line H6, and

the other (the port M3) with a similar chamber M6 located at the bottom of the valve housing 'opposite the chamber M5 and which is connected with the bottom of the air cylinder through a pipe line H7. Both pipe connections may be traced in Fig. l. The third port M4 communicates directly with the atmosphere as shown in Fig. 8.

In the normal position of the parts, the three ports, just referred to are closed to the high pressure chamber by a gate valve M7 held tightly against .the front wall of the chamber by a spring M3, reacting between the high pressure side of the gate and the base of an opposed recess M9 in which the spring M8 is located. In that face of the gate valve which is adjacent the outlet ports, there is formed. a somewhat elongated recess M10, just long enough to connect either of the ports M2 or M3 (leading to the cylinder H) with the center port M4 (communicating with the atmosphere), depending upon the location of thegate, but in the normal position of the parts, as shown in Fig. 7, the gate closes the two ports M2 and M3 both from the high pressure side of the valve and from .the atmosphere. Of course, in all positions of the gate valve M7, the high pressure side thereof is closed to the port M4 leading to the atmosphere.

Means are provided for rotating the gate valve M7 in one direction or another depending upon whether the shift frame is to be raised or lowered. Such means include a spindle M11 extending in a fore-and-aft direction through the valve housing and formed at its inner end with anelongated feather M12 engaging in a correrespondingly shaped recess in the front face of the gate valve M7, so that the latter is constrained to move with the spindle as the latter is rocked. The spindle is also formed adjacent the valve seat with a collar M13 seated in a correspondingly shaped recess in .the valve seat and which prevents the spindle from being withdrawn outwardly from its proper position. The spindle M11 protrudes beyond the housing L to accommodate actuating means, hereinafter to be described.

According to the foregoing arrangement, when the gate valve M7 is in its normal position (see Figs. 7 and 8) both the ports M2 and M3 leading to the cylinder H of the shift frame raising and lowering mechanism are closed. However, when it is desired to lower the magazine shift frame, the spindle M11 is rotated in a clockwise direction (looking at the parts from the front of the machine) to move the gate valve to the position shown in Fig. 9, wherein the port M2 communi- 75 cating with the pipe line HG leading to the top of the cylinder H, is uncovered or opened `to the high pressure side of the valve. Thereupon, air under pressure flows from the source of supply through the upper portion L1 of the other valve chamber, through the intermediate port M1 between it and the gate valve chamber M, and thence Ithrough the outlet port M2 to the upper end of the cylinder H. At the same time that the outlet port M2 is uncovered, the outlet port M3, communicating with the lower end of .the cylinder H, is connected with the port M4 leading to the atmosphere through the recess M10, as shown in Fig. 9, so that the lower end of the cylinder H is vented to ,the atmosphere. In this way, the air admitted to the upper end of the cylinder H causes the piston H1 therein to be moved downwardly until the desired magazine reaches the operative position, whereupon the gate valve M7 is returned to normal position, shutting oliF the air supply.

And, similarly, when it is desired to raise the shift frame, the gate valve M7 is turned from normal position in the opposite direction so as to connect the outlet port M3 (communicating with the lower end of the cylinder H) with the high pressure side of the valve while at the same time connecting the outlet port M2 (communicating with the upper end of the cylinder) with the vent port M1 through the recess M10. The operations are now reversed, i. e., air is supplied to the lower end of the cylinder H below the piston H1, while the upper end of the cylinder is vented to the atmosphere, so that the magazine shift frame is raised to bring the desired magazine into operative position, whereupon the gate valve M7 is returned to normal position, shutting off the air supply.

Merely for expediency of manufacture, the valve housing L is made of two castings connected together by machine screws l, as shown in Figs. 6, 7 and 8.

Before proceeding with the description of the mechanism for operating the valves, mention will rst be made of the feeler devices which operate to determine whether or not the magazines are free to be moved, since these devices are operated by the same mechanism through which both the valves are conjointly controlled.

Referring to Fig. l, there is provided the usual feeler device between the assembler entrance and the magazines and which consists of a frame N with a cross element (not shown) arranged to be moved downwardly across the assembler entrance D to determine whether any obstruction is present (such as a protruding matrix) that would prevent the movement of the magazines. This frame N is operated from a pair of arms N1 located one at each side of the machine and extending rearwardly from a transverse shaft N2 adapted to be rotated in a clockwise direction to move the frame downwardly and then in the opposite direction to restore the frame to its normal position. A feeler device is also provided in conjunction with the distributor and includes a plate N3 adapted to be moved rearwardly between two of the distributor screws to determine whether or not the distributor bar is free of matrices. The plate is supported from depending pivotally mounted arms N4 which are normally spring-held in a position to maintain the feeler plate inactive. The two feeler devices are conjointly operated through the me-v dium of a vertically movable link N5 located at the front of the machine and pivotally connected* at its upper end to an arm NG fixed to and extending forwardly from the cross shaft N2 previo'usly referred to. The connections to the distributor feeler include an upwardly extending arm Nrl likewise xed to said shaft and connected at its upper end to a horizontal rod N8 operating a linkage, including two bell crank levers N9 and Nlo'land an intermediate vertically disposed rod N l, the upper beil crank lever N10 being mounted inra position to push the distributor feeler plate N3 beneath the distributor bar when the parts are operated. The horizontal rod N8 is normally held in its forward or inactive position by a spring N12 .connected at one end to the rod N8 and anchored at its other end to a fixed part of the machine. According to this arrangement, as thel vertical rod N at the front end of the machine is moved upwardly, the transverse shaft N2, which is operated thereby, will be rocked in a clockwise direction against the tension of the spring N12, `this operation serving to operate both of the feeler devices in well known manner, and when said rod N5 is released, the feeler devices will be returned to their normal inoperative positions under spring pressure.

Adverting now to the control device O which is arranged at the front of the machine adjacent the keyboard (see Figs. l and 2), it will be observed that it is supported by the same bracket C8 that supports the valve housing L. It is provided with a casing Ol enclosing the operative parts and formed with a fore-and-aft slot O2 having a seri-es of ared notches O3 in one edge corresponding in number to the magazines in the shift frame. The control is eifected through the medium of a handle or lever O4 which, in its normal position, reposes in one or another of the notches O3, depending upon which of the magazinesis in operative position. The notches are numb-ered l to 4, starting at the front, the designation referring to the magazines in order, starting from the top.

When it is desired to substitute a different magazine for the one inoperative position, the lever O4 is moved from an angular position, as shown by the solid lines in Fig. 4, out of the notch O3 in which it is located into the vertical position as shown by the dotted lines in said iigure. In the latter position, the lever O4 is free to be moved backwardly or forwardly in the slot O2, depending upon which of the magazines it is desired to use. Thus, if the No. 2 magazine is in operative position (i. e., the one second from the top), land it is desired to substitute the No. 4 magazine therefor (i. e., the bottom magazine), the lever O4 is moved out of the No. 2 notch and along the slot O2 until it arrives opposite the No. 4 notch, and when said lever is moved into th No.4 notch, the corresponding magazine will be in operative position. Or, if the topmost magazine is desired instead, the lever O4, after being withdrawn from the No. 2 notch, is moved in the oppositedirection until it arrives in a position wherein it can be rocked into the No. 1 notch. The motion of the lever O4 as it is shifted from one notch to another in practice is an even, continuous one. As will be pointed out later on, the lever O4 is mounted by what in effect is a universal joint, enabling it to be rocked in a lateral direction as well as in a fore-and-aft direction simultaneously, thus permitting the lever to be guided by the flared contour of the notches as it is shifted out of one notch and into another. To be more specific, as the operator shifts the lever, say out of notch No. 2 and into notch No. 4,'

path rearward and to the right.

it will be his natural tendency to follow the dared edge at the rear of notch No. 2, so that the actual movement of the lever in passing to the fore-and-aft slot O2 will be along an angular And similarly, in moving the lever O4 into notch No. 4, by following the ared edge at the front of notch No. 4, its actual movement will be along an angular path rearward and to the left.-

As shown in Figs. 3 and 4, the lever O4 is mounted for lateral pivotal movement between two arms of a U-shaped member O5 formed at the end of a, transverse rock shaft O6 which, in addition to its rocking motion, is capable of being moved in a fore-and-aft direction in a manner and for a purpose hereinafter described. Below its pivotal connection, the lever is formed with a hooked portion O7 adapted to engage the right-hand face of a plate O8 which, as shown in Figs. 3 and 4, is pinned to a fore-and-aft rock shaft O9 journalled at its opposite ends in lugs O10 and O11 offset to the left of the main supporting bracket C8. According to this arrangement, when the lever O4 is first moved out of the notch in which it happens to be located, the lower hooked portion O7 thereof will engage the plate O8 and rock the shaft O9 from the position shown by the solid lines in Fig. 4 to the position shown by the do-tted lines therein. This movement of the rock shaft accomplishes two things, first, it actuates the feeler devices to determine whether or not the shift frame is free to be moved, and second, it operates the valve that controls the supply of air for operating the shi-ft frame locking device. Both operations are effected through a single arm 012 pinned on the rock shaft O9 at its rear end where it extends beyond the rear lug O11 in which it is journalled. At its left end, looking at the machine from the front, the arm O12 is formed with a ball O13 located between the bifurcated rear end portions of a small foreand-aft lever O14 pivotally mounted at its center on the lug O11 that supports the rock Shaft O9 and which is connected at its front end to the vertical rod N5 that operates the feeler devices.

Thus, when the arm O12 is actuated by the rock shaft O9, its rst act is to raise the rod N5 and, if no obstruction is presented to its movement (which indicates that thle magazines are all clear), the arm will continue to the dotted line i position shown in Fig. 4.

At its right end, the arm O12 is provided with a banking screw O15 adapted toengage the lower end of the stem L4 through which the valve LZ is operated that controls the admission of air to the cylinder K2 associated with the shift frame locking device. The full movement of the control lever O4 out of a notch O3 is sufficient to cause the arm O12 fully to open the valve L2, with the consequent unlocking of the shift frame in the manner and for the purpose hereinbefore described. In other words, when the control lever O4 has reached its rightrnost position, the magazine shift frame is free to be raised or lowered. At this point, it might be stated that the plate O8, through which the rock shaft O9 is operated by the control lever O4, is coextensive in length with the slot O2 so it may cooperate with the lever in any position of the latter. It might also be stated here that the banking screw O15 on the end of arm O12 is arranged for limited adjustment in the event occasion therefor arises.

As previously stated, the control lever O4 is pivotally supported by a pair of spaced arms presented by a U-shaped member O5 formed at the left end of the small rock shaft O6. This rock shaft is journalled in a slide O1s near the front end thereof, which slide is capable of being moved in a fore-and-aft direction to accommodate the fore-and-aft movement of the control lever O4. The slide O16 (see Figs. 3 and 4) is guided in a longitudinal recess C9 formed in the supporting bracket C8 and is held in place by a retaining plate C10 fastened to the bracket and which likewise is slotted to accommodate said fore-andaft movement of the control lever. The rock shaft O6, at the end opposite that on which the control lever is mounted, extends through a slot C11 in the supporting bracket C8 which slot too is of sucient length to accommodate the fore-andaft lever movement and the shaft is provided at said end with an arm O17 presenting a nger O18 adapted to engage in a longitudinal groove O19 formed in a fore-and-aft bail member 02. The bail member is formed at its opposite ends with offset lugs O21, that at the front being pivotally mounted in a portion of the fixed bracket C8, whereas that at the rear is pinned to the spindle M11 which operates the gate valve M7 (see Figs. 3, 6 and 8).

According to this arrangement, the control lever O4, can be rocked through a limited distance forwardly or rearwardly, this distance being determined by the clearance between the edges of the slot in the retaining plate C10 and the base portion of the U-shaped section O5 of the rock shaft O6 in which the control lever is supported. If it is desired to lower the magazine shift frame, the control lever O1 is moved forwardly to the left-hand dotted line position shown in Fig. 6 and, when this occurs, the shaft O6 on which it is supported will be rocked in the same direction, with the result that the finger O18 presented by the arm O17 mounted at the end of said rock shaft moves upwardly, causing the bail O20 to be rocked in a clockwise direction (looking at the parts from the front). Such movement of the bail turns the gate valve M" to the position in which the high pressure side thereof communicates with the top of the cylinder H of the shift frame raising and lowering mechanism and in which the bottom of the cylinder is vented to the atmosphere, and this condition of the parts will be maintained until the control lever seats in the notch corresponding to the selected magazine. On the other hand, if it is desired to raise the magazine shift frame, the control lever O1 is rocked rearwardly to the right-hand dotted line position shown in Fig. 6, and when this occurs, the finger O18 on the arm mounted on the levercontrolled rock shaft O6 will be moved downwardly causing the bail O20 to be turned to a p0- sition wherein the gate valve M7 operated thereby uncovers the port connecting the high pressure side of the valve with the bottom of the cylinder H and opens the upper end of the cylinder to the atmosphere, and again, this condition of the parts will be maintained until the lever Of1 seats in the notch corresponding to the selected magazine.

The slide O16 is, through suitable gearing, connected to the shift frame so that the movements of the two will correspond. Thus, looking at Figs,

l, 2 and 3, it will be observed that the slide O11 just referred to extends somewhat beyond the rear end of the supporting bracket C8, which in turn extends somewhat rearwardly of the valve housing L. In this portion of the bracket, the slide is maintained in its groove by a face plate absence of the slot. In the upper edge of the slide O16 near the rear end thereof, there is provided a series of gear teeth O22 arranged to mesh with a pinion O23 which in turn meshes with an intermediate gear O24 located between the pinion and the gear G1 located at the right end of the transverse shaft G and which is driven from the corresponding rack G2 at the right of the shift frame. Both the pinion and the intermediate gear are rotatably mounted on stub shafts projecting laterally from an arm C13 that extends upwardly from the supporting bracket C8. Consequently, when the shift frame is raised, the slide O16, through the gear train just mentioned, is moved rearwardly through a distance equal to that through which the shift frame moves. whereas, when the shift frame is moved downwardly, the slide is moved forwardly through a corresponding distance. With the movements of the shift frame and slide thus synchronized, the notch O3 in which the control lever O1 is located not only will indicate which of the magazines is in operative position, but will also serve to determine the extent the lever will have to be moved to insure the arrival of a newly selected magazine in operative position. In seating in the notch O3 corresponding to a newly selected magazine, the lever O4 will follow the flared contour at the near edge of the notch and in so doing will have a movement made up of two components-one, a leftward component (induced by the spring N12) which will release the shift frame locking bolts K (see Fig. 4), and second, a fore-and-aft com ponent (induced by the continued movement of the slide O16) which will rock the lever to its normal position for shutting off the air supply to the upper end of the cylinder H. The sequence of operation is such that the locking bolts K are released for operation prior to shutting oi the air to the cylinder H, with the result that the shift frame continues to move until the locking bolts can spring into place and properly locate it. Thus, the initial movement of the arm O12 back to normal position permits the valve L2 to be closed, thus relieving the air pressure in the cylinder K2 and freeing the spring K10 to actuate the bolts K; whereas, the complete closing of the valve supplying air to the cylinder H is not effected until the lever O4 has been straightened up within the notch by the continued movement of the slide O16, it being obvious that the slide will continue to move until the shift frame is brought to a stop by the snapping of the (now freed) locking bolts into the notches F11 correspending to the newly selected magazine.

A clear picture of what occurs in changing from one magazine to another may be had from a study of Fig. 13, which illustrates various positions of the hand lever O4 as it is shifted from say notch No. 1 to say notch No. 2. When the parts are at rest with the top magazine in operative position, the hand lever O4 will occupy dotted line position No. l (corresponding to the full line position of the lever shown in Fig. 4), the lever in this (its normal) position being inclined to the left in notch No. l but neither inclined toward the front nor back. To substitute the second magazine from the top, the operator moves the lever out of notch No. l into `the slot O2, pressing it rightward and rearward until it assumes full line position No. 2 (corresponding to the rearward dotted line position shown in Fig. 6). Such compound movement of the hand lever (the slide O16 remaining stationary) has the effect of withdraw-'- C12 similar to that at the front, except for the 7,5. :lng thelocking bolts Kto free the shift frame and of charging the cylinder H at the bottom while venting it at the top, thus inaugurating the upward movement of the shift frame. As the shift frame moves upward, the hand lever will be moved bodily rearward along the slot O2 due to its mounting on the slide O16 which, it will be remembered, is connected to the magazine shift frame. As it is thus moved along the slot O2, the hand lever will, of course, remain inclined toward the rear to continue the admission of .compressed air to the cylinder H and will be held against movement toward the left by the left wall of the slot O2 to maintain the locking -bolts withdrawn. Upon its arrival at the entrance to notch No. 2i however, ther hand lever (under the influence of thev spring N12) will enter said notch, being moved to the left along the forwardly flared edge of the notch until itseats in the bottom thereof, as represented by dotted line position No. 3, whereby .thelocking bolts K will be released and stand 'ready to snap into the second set of notches F11 when the shift frame has completed its full movement to bring the second magazine into operative position. During its final stage of movement, the shift frame will continue to move the slide O16 on which the hand lever is mounted, and such continued movement of the slide will rock the lever, now seated in notch No. 2, from dotted line position No. 3 to dotted line position No. 4, or, in other words, back to its original or normal position with respect to the slide O16. As the hand lever is thus mechanically restored toits normal position, air pressure will be shut 01T from the cylinder H (by the closing of the gate valve M1) and the shift frame brought to rest, the newly selected magazine being located and held in operative position by-the snapping of the locking bolts 'this because the operation takes place so rapidly that there is no conscious realization on the op- 'erators part of what is occurring. Indeed, so far as the operator is concerned, he merely has to vmove the hand lever out of one notch and direct it into a new notch corresponding to the magazine to -be selected.

It will be understood, of course, that if one or more notches intervene between the previously selected notch and the newly selected notch, as for example in shifting from notch No. 1 to notch No.4, the operato-1' will have to hold the hand lever out of the intervening notches against the moved bodily along the slot O2, but again it is pointed out that the bodily shifting of the hand `leverA by the slide O16 is so rapid that the operator is almost unconscious of the tendency of the hand lever to be pulled into the intervening notches.

yIt may also be explained that if, during a 'change from one magazine to another, the opera- 'to'r wishes to arrest the movement of the shift frame at any point along the slot O2, this can be A.done merely "by manually straightening up the :hand lever within the slot so as thereby to shut off air pressure to -the cylinder I-I. This capacity to arrest the movement of the shift frame at will is of advantage in avoiding possible damage to the parts in the event that the movement of the sihft frame should be obstructed, as for instance by matrices protruding from one or another of the magazines. It is even possible by such manual arrest of the shift frame to bring a newly selected magazine into operative position before the locking bolts are released, but it is obvious that this manual operation might present some difficulty because of the need for exact registration between the locking bolts and their cooperating notches on the shift frame.

Invthe accompanying drawings, the invention has been shown merely in preferred form and by way of example, but obviously many changes and Variations may be made therein without de- K into the second set of notches F11. Hence, it

reaction of the spring N12 as the hand lever is parting from its spirit. It is to be understood, therefore, that the invention is not limited to any specific embodiment, except insofar as such limitations are specified in the appended claims.

This application is a continuation in part of application Serial No. 311,091, filed December 27, 1939.

Having thus described my invention, what I claim is:

1. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, a magazine shifting device operable independently of the machine drive and comprising pneumatic means for moving the magazine, and means for controlling the operation of-said pneumatic means.

2. In or for a typographical composing machine having a matrix magazine movable in different directions into vand out of operative position, a magazine shifting device operable ndependently of the machine drive and comprising pneumatic means operable selectively in either of two directions to effect the movement of the magazine, and means for controlling the operation of said pneumatic'means.

3. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, a magazine shifting device comprising a cylinder and piston arrangement connected between the magazine and a xed part of the machine, and means for admitting air under pressure into the cylinder at one side of the piston to move the magazine in one direction and at the opposite side of the piston to move the magazine in the opposite direction.

4. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, a magazine shifting device connected between the magazine and a fixed part of the machine frame and including a cylinder and piston arrangement, means for Aadmitting air under pressure to the cylinder at one side of the piston o-r the other, depending upon the direction in which the magazine is to be shifted, and means for simultaneously venting the cylinder at the opposite end of the piston to the atmosphere.

5. A magazine shifting device according to claim 4, wherein the means for admitting air under pressure to the cylinder includes a valve having three outlet ports, one communicating with the atmosphere and the others communicating one with each end of the cylinder, a source of `air pressure, and means normally acting to shut on the last-mentioned two ports from the source of air pressure, but adjustable to connect either of said two ports with the source of air pressure while simultaneously connecting the other of said two ports with the third port leading to the atmosphere.

6. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a pneumatically operated magazine shifting device and means acting automatically to regulate the speed of operation of said device.

7. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a pneumatically operated magazine shifting device and a hydraulic speed regulator for said magazine shifting device.

3. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a magazine shifting device, and means for controlling the speed of operation of said device, comprising a hydraulic unit in which the liquid is caused to iiowas the magazine shifting device is operated and wherein the rate of liquid flow determines the speed of operation of the magazine shifting device, and means in said hydraulic unit for regulating the rate of liquid ow therein.

9. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a magazine shifting device, and means for controlling the speed of operation of said device, comprising a hydraulic cylinder and piston arrangement with a passageway interconnecting the ends of the cylinder on opposite sides of the piston whereby as the shifting device is operated to move the magazine, liquid will ilow from one end or the other of the cylinder to the opposite end depending upon the direction of magazine movement, and means in said passageway for controlling the rate of liquid iiow therein.

10. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a magazine shifting device, and means for controlling the speed of operation of said device, comprising a hydraulic cylinder and piston arrangement with a passageway interconnecting the ends of the cylinder on opposite sides of the piston, whereby as the shifting device is operated to move the magazine, liquid will flow from one end or the other of the cylinder to the opposite end depending upon the direction of magazine movement, and means adjustable in accordance with the position of the magazine for controlling the rate of liquid iiow between the ends of the cylinder.

11. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a magazine shifting device, and means for controlling the speed of operation of said device, comprising a hydraulic cylinderand piston arrangement with a passageway interconnecting the ends of the cylinder on opposite sides of the piston, whereby as the shifting device is operated to move the magazine, liquid will now from one end or the other of the cylinder to the opposite end depending upon the direction of magazine movement, and means including a port in the passageway through which the liquid flows and which is adjustable in effective area to control the rate of liquid ow therethrough.

12. In or for a typographical composing machine having a plurality of matrix magazines shiftable into and out of operative position, the combination of a magazine shifting device, and means for controlling the speed of operation of said device, said means including a hydraulic unit in which liquid is caused to iiow as the magazine shifting device is operated and wherein the rate of low determines the speed of operation of the magazine shifting device, and means operating automatically as any magazine is moved into operative position for controlling the rate of liquid iiow in a manner to reduce the speed of operation of the magazine shifting device.

13. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a magazine shifting device, and means for controlling the speed of operation of said device, comprising a hydraulic cylinder and piston arrangement with a piston rod connected at one side of the piston and extending through the cylinder head at one end thereof, a passageway interconnecting the ends of the cylinder on opposite sides of the piston whereby as the shifting device is operated to move the magazine, liquid will flow from one end of the cylinder to the opposite end thereof depending upon the direction of magazine movement, and means for compensating for differences in the amount of liquid displaced from the cylinder at one side ofthe piston and that which flows into the cylinder at the opposite side of the piston during any movement of the latter due to the presence of said piston rod.

14. In or for a typographical composing ma.- chine having a matrix magazine movable in different directions into and out of operative position, the combination of a magazine shifting device, and means for controlling the speed of operation of said device, comprising a hydraulic cylinder and piston arrangement with a piston rod connected at one side of the piston and extending through the cylinder head at one end thereof, a passageway interconnecting the ends of the cylinder on opposite sides of the piston whereby as the shifting device is operated to move the magazine, liquid will flow from one end of the cylinder to the opposite end thereof depending upon the direction of magazine movement, and a reservoir for supplying liquid to the end of the cylinder opposite that wherein the piston rod is located to maintain said end of the cylinder full when a movement of the piston displaces liquid rom the opposite end of the cylinder, and for receiving liquid in excess of that necessary to ll the cylinder at the end wherein the piston rod is located when the movement of the piston is in the opposite direction.

15. In or for a typographical composing machine having a matrix magazine adapted to be moved into and out of operative position, the

`combination of a locking mechanism for maintaining the magazine in operative position, pneumatically operated means for operating the locking mechanism, and means for controlling the operation of said pneumatically operated means.

combination of a locking mechanism for maintaining the magazine in operative position, pneumatically operated means for rendering the locking mechanism inactive, and means for controlling the operation of said pneumatically operated means.

17. In or for a typographical composing machine having a matrix magazine adapted to be moved into and out of operative position, the combination of a locking mechanism for maintaining the magazine in operative position, pneumatically operated means for rendering the locking mechanism inactive, spring means for restoring the locking mechanism to active position, and

. means for controlling the operation of said pneumatically operated means.

18. In or for a typographical composing inachine having a plurality of matrix magazines shiftable in one direction or another to bring a selected magazine into Voperative position, the combination of a pneumatically operated magazine shifting device, means operated selectively in one way or another, depending upon the direction in which the magazines are to be shifted, to control the operation of the magazine shifting device, and means acting in conjunction with said control means and operable in accordance with the movement of the magazines to indicate when the selected magazine is in operative position.

19. In or for a typographical composing machine having a plurality of matrix magazines shiftable in one direction or another to bring a selected magazine into operative position, a magazine shifting device' including a cylinder and piston arrangement operable by air pressure and adapted to move the magazines in one direction or another depending upon the end of the cylinder to which the air under pressure is admitted, a valve for selectively connecting one end of the cylinder or the other to a source of air pressure, means for operating said valve, and means acting in conjunction with the valve operating means and operable in accordance with the movement of the magazines to indicate when the selected magazine is in operative position.

20. In or for a typographical composing machine having a plurality of matrix magazines shiftable in one direction or another to bring a selected magazine into operative position, a magazine shifting device including a cylinder and piston arrangement operable by air pressure and adapted to-move the magazines in one direction or another depending upon the end of the cylinder to which the air under pressure is admitted, a valve for selectively connecting one end of the cylinder or the other to a source of air pressure, manually operable means for operating said valve and movable by the operator differently depending upon the direction of magazine movement, and means operable in accordance with the movement of the magazines to locate said manually operable means in diierent positions dey pending upon the magazine in operative position.

said lever being pivotally mounted and movable about its pivot in one direction or another depending upon the desired direction of magazine movement, and a member on which said lever is mounted, which member is movable in accordance with the movement of the magazines to locate the lever in diierent positions depending upon the magazine in operative position, and in the same direction as the lever is pivoted in inaugurating the movement of the magazines.

22. In or for a typographical composing ma.- chine having a plurality of matrix magazines shiftable in one direction or another to bring'a selected magazine into operative position, a magazine shifting device including a cylinder and piston arrangement operable by air pressure and adapted to move the magazines in one direction or another depending upon the end of the cylinder to which the air under pressure is admitted, a valve for selectively connecting one end of the cylinder or the other to a source of air pressure, means including a lever for operating said valve, said lever being pivotally mounted upon a slide and movable about its pivot in one direction or another depending upon the desired direction of magazine movement, and connections for actuating the slide in synchronism with the magazine `movement and in one direction or another depending upon the direction of magazine movement, whereby said lever is located in one position or another according to the magazine in operative position, said connections being such that the direction of movement imparted to the slide accords with the direction in which the lever is pivotally moved to inaugurate the magazine movement.

23. In or for a typographical composing machine having a matrix magazine shiftable into and out of operative position, the combination of a lock device for maintaining the magazine in operative position, a pneumatically operated device for shifting the magazine, a pneumatically operated device for operating the lock device, and

means for conjointly controlling the operation of both said pneumatically operateddevices.

24. In or for a typographical composing machine having a matrix magazine shiftable into and out of operative position, the combination of a lock device for maintaining the magazine in operative position, a pneumatically operated deviceior shifting the magazine, a pneumatically operated device for operating the lock device, and means for controlling the operation of said pneulmatically operated devices, which means includes `a common member operable to eect the operation of the lock device to release the magazine and to eiect the shifting of the magazine.

25.V In or for a typographical composing machine having a plurality of matrix magazines mounted in a shift frame movable to bring any selected one of said magazines into operative position, the combination of a lock device for maintaining the shift frame in its different positions wherein a magazine is operative, a pneumatically operated device for moving the shift frame in one direction or another depending upon the magazine selected, a pneumatically operated device for operating the lock device, and means for controlling the operation of said pneumatically operated device, said means including a common member operable first to eiect the release of the shift frame and its movement in the desired direction, and then to arrest the movement of the `magazine shift frame and lock it in its Vdirection or another depending upon the magazine selected, a pneumatically operated device for operating the lock device, and means for controlling the operation of said pneumatically operated devices, said means including a common member operable rst to effect the release of the shift frame and its movement in the desired direction, and then to arrest the movement of the magazine shift frame and lock it in its newly adjusted position, and means including said common member for indicating which of the magazinesis in operative position.

27. In or for a typographical composing machine having a plurality of matrix magazines mounted in a shift frame movable to bring any selected one of said magazines into operative position, the combination of a lock device for maintaining the shift frame in its different positions wherein a magazine is operative, a pneumatically operated device for moving the shift frame in one direction or another depending upon the magazine selected, a pneumatically operated device for operating the lock device, two valves, one operable to control the operation of the pneumatic device operating the lock device, and the other operable selectively to control the operation of the pneumatic device operating the shift frame ina manner to effect the movement of the shift frame in one direction or another as desired, and means for operating said valves including a common member operable in one direction to operate the iirst mentioned valve and in another direction to operate the second mentioned valve, and iinally operable in the reverse directions to restore the valves to their normal positions.

28. In or for a typographical composing machine having a plurality of matrix magazinesr to be moved, a lock device for maintaining the shift frame in any of its adjusted positions, a pneumatically operated device for moving the shift frame in one direction or another depending upon the magazine selected, a pneumatically operated device for operating the lock device, and f means including a common member for conj ointly controlling the operation of the feeler devices and both said pneumatically operated devices.

29. In or for a typographical composing machine having a plurality of matrix magazines mounted in a shift frame movable to bring any selected one of said magazines into operative position, the combination of feeler devices for determining Whether or not the magazines are free to be moved, a lock device for maintaining the shift frame in any of its adjusted positions, a pneumatically operated device for moving the shift frame in one direction or another depending upon the magazine selected, a pneumatically operated device for operating the lock device, a member movable in accordance with the movement of the shift frame for indicating by its position which of the magazines is in operative position, and means conjointly operated by said member regardless of its position for controlling the operation of the feeler devices and both said pneumatically operated devices. y 30. In or for a typographical composing machine having a matrix magazine movable in diiferent directions into and out of operative position, the combination of a supporting frame for the magazine, a magazine shifting device acting directly on said frame, and interconnected means distinct from said magazine .shifting device acting at laterally spaced parts oi the frame for equalizing its movement during a magazine shifting operation.

3l. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a supporting frame for the magazine, a magazine sluiting device acting vdirectly on said frame, a pair of spaced racks on the frameand a pair of interconnected pinions cooperating with the racks for equalizing the movement of the frame during magazine shifting operation, said racks and pinions being distinct from the magazine shifting device.

32. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a supporting frame for the magazine, a magazine shifting device acting directly on said frame, interconnected devices cooperating with the frame at opposite sides thereof for equalizingl its movement during a magazine shifting operation, and means acting through said devices for substantially counterbalancing the weight of the magazine and the supporting frame thereof.

33. In or for a typographical composing machine having a matrix magazine movable in different directions into and out of operative position, the combination of a supporting frame for the magazine, a magazine shifting device acting directly on said frame, means including rack and pinion devices acting at laterally spaced parts of the frame for equalizing its movement during a magazine shifting operation, a shaft for the pinion device, and means for substantially counterbalancing the Weight of the magazine and the supporting frame thereof, said means including devices acting through said shaft and the rack and pinion devices.

34. In or for a typographical composing machine having a plurality of individually removable and replaceable matrix magazines shiftable into andy out of operative position, the combination of a magazine shifting device, and means for substantially counterbalancing the Weight of the magazines, said means including a plurality of counterbalancing units adapted each to account ior a unit of Weight equivalent to that represented by an individual magazine, and capable each of being rendered operative or inoperative, as desired, depending upon the number of magazines in the machine.

35. In or for a typographical composing machine having -a plurality of individually removable and replaceable matrix magazines shiitable into and out of operative position, the combination of a pneumatically operated magazin-e shifting device, and means for substantially counterbalancing the weight of the magazines, said means including a plurality of counter-balancing units adapted eachto account for a unit ol weight equivalent to that represented by an individual magazine, and capable each of being rendered operative or inoperative, as desired. depending upon the numb-er of magazines in the machine.

36. In or for a typographical composingmachine having a matrix magazine movable into and out of operative position in an inclined-path,

a magazine shift frame comprising inclined means disposed below the magazine in line vwith the l5 path of magazine movement, guiding devices cooperating with said means, and connections whereby the load of the magazine is transmitted to said inclined means at the opposite ends thereof.

37. In or for a typographical composing machine having a plurality of matrix magazines mounted in a shift frame and movable to bring `diierent selected ones of said magazines into operative position, the combination of a magazine selecting member movable to as many different positions as there are magazine selecting positions of the shift frame, and power means controlled by the movement of the magazine selecting member to any given position for moving theA shift frame to bring the corresponding magazine into operative position, said power means being restored to neutral after each such shift fram-e movement.

38. In or for a typographical composing ma-I chine having a plurality of matrix maga-zines mounted in a shift frame and movable to bring different selected ones of said magazine into operative position, the combination of a magazine selecting member movable to as many differents@ positions as there are magazine selecting positions of the shift frame, and pneumatic means controlled by th-e movement of the magazine selecting member to any given position for moving the shift frame to bring the corresponding magai i zine into operative position, said pneumatic means being restored to neutral after each such shift frame movement.

39. In a typographical machine, the combination of a plurality of superposed matrix magalo zines shiftable fore and aft as a unit, driving mechanism for operating the machine proper in one direction, separate driving mechanism including a reversible motor and operable wholly independently of the machine driving mechanism for shifting the magazine unit in either direction, and control means for said motor drive including a magazine selecting element movable to render the drive operative to shift said unit diierent extents in either direction according to the extent and direction of movement of said selecting element.

40. In a typographical machine, the combination of a plurality of superposed matrix magazines shiftable fore and aft as a unit, driving mechanism for the machine proper, a reversible power drive distinct from the machine drive and in constant coupled relation with the magazine unit for shifting the latter in both directions, and control means including a magazine selecting element adapted upon changing the set position thereof to render the power drive operative to shift the magazine unit different extents according to the amount of change in the set position of said selecting element.

41. In a typographical machine, the combination of at least three superposed matrix magazines shiitable as a unit in opposite directions, a reversible power drive for shifting said unit in either direction to present any selected magazine therein in operative position, magazine selecting means movable from any one to any other of a series of different positions corresponding respectively to the positions of the magazines in the shiitable unit, and control means governing the 7e operation of the power drive and the direction and extent of shifting movement thereby of 'said unit in accordance with the direction and extent of movement of the selecting means.

42. In a typographical machine, the combination of at least three superposed matrix magazines shiftable as a unit in opposite directions,

a reversible power drive for shifting said unit in either direction to presentany selected magazine therein in operative position, and control means governing the operation of the power drive including a magazine selecting lever movable from one to another of a series of positions each designating a different magazine in the shiftable unit and operative upon changing the position of the lever to permit operation of the power drive until the selected magazine arrives in operativeA Dosition.

43. In a typographical machine, the combination of at least three superposed matrix magazines shiftable as a unit in opposite directions to present any selected magazine in operative posi-v tion, a reversible power drive for shifting said unit in either direction, magazine selecting means movable from one to another of a series of different positions each designating a diierent magazine in the shiftable unit and adapted upon such movement to render the power drive operative, and means cooperative with said selecting means at each position thereof for automatically rendering the drive inoperative upon arrival of the selected magazine in operative position.

44. In a typographical machine, the combination of a plurality of superposed matrix magazines shiftable as a unit in opposite directions, a reversible power drive for shifting said unit in either direction to bring any selected magazine into operative position, and control means governing the operation of said drive, said means including a magazine selecting element movable different extents in either of two directions according to the position in the shiftable unit of a selected magazine relative to a magazine in use, and the direction and extent of such movement of the selecting element governing the direction and extent of shifting movement of the magazine unit required to bring the selected magazine into operative position.

45. In a typographical machine having driving mechanism for the machine proper, the combination of a plurality of superposed matrix magazines shiftable as a unit in opposite directions, a reversible motor drive distinct from and operable independently of the machine drive for shifting said unit in either direction to bring a selected magazine into operative position, magazine selecting means movable to determine the direction and extent of sluiting movement, and control means adapted to initiate operation of the motor in response to movements of the selecting means and to cooperate with the selecting means to render the motor inoperative automatically upon arrival of said selected magazine in operative position.

46. In a typographical machine, the comb-ination of a plurality of superposed matrix magazines shiftable fore and aft as a unit, power driven mechanism adapted to run continuously in one direction for operating the machine proper, and separate reversible power driven mechanism for shifting the magazine unit in either direction, said latter mechanism including a reversible motor in constant operative connection therewith, control means including a magazine selecting element for rendering the motor operative to effect a shifting movement of the magazine unit in a desired direction, and means operative automatically to stop the motor upon completion of such shifting movement.

47. In a typographical machine, the combination of a plurality of superposed matrix magazines shiftable fore and aft as a unit to present any selected magazine in operative position, driving mechanism for the machine proper, a reversible power drive operable independently thereof for shifting the magazine unit in either direction, and control means for said power drive, said means including a magazine selecting element having a series of positions corresponding to the diierent magazines and adapted upon a change of position to govern the starting and stopping of the power drive and to determine the extent of movement thereby of the magazine unit required to shift a selected magazine into operative position.

48. In a, typographical composing machine, the combination of a series of three or more superposed magazines movable as a unit in opposite directions to bring diierent selected ones thereof into operative position, a reversible power drive for effecting such movement of the magazine unit, and control means governing the operation of the power drive and including a magazine selecting element having a series of positions corresponding to the diierent magazine selecting positions of the shift frame and shiftable from one position to another in selecting a given magazine for use, said power drive having a neutral setting for each diierent position of the magazine selecting element.

49. In a typographical composing machine, the

combination of a series of three or more superposed magazines movable as a unit in opposite directions to bring diierent selected ones thereof into operative position, a reversible power drive for eiecting such movement of the magazine unit, a magazine selecting element having a series of positions corresponding to the diierent magazine selecting positions of the shift frame and shiftable from one position to another in selecting a given magazine for use, means to initiate the operation of the power drive as the selecting element is shifted from any position, and means operating automatically to render the power drive inoperative upon the arrival of the selected magazine in operative position as determined by the new position of the selecting element.

50. In a typographical machine, the combination of a plurality of superposed matrix magazines shiftable fore and aft as a unit, driving mechanism for the machine proper, and driving mechanism including a reversible source of power all distinct from and operable wholly independent of the machine drive for shifting the magazine unit in either direction.

51. In a typographical machine, the combination of a plurality of superposed matrix magazines shiftable fore and aft as a unit, driving mechanism for the machine proper, and a se iarate reversible drive including a constantly connected source of power and operable as a whole independent of the machine drive for effecting shifting movement of the magazine unit in either direction.

JAMES C. PLASTARAS.