US2314324A - Typographical machine - Google Patents

Description

March 23, 1943. e, w, ALLAN ETAL TYPOGRAPHICAL MACHINE 2 Sheets-Sheet 1 Filed Jan. 31, 1942 INVENTORS GEORGE W. ALLAN ATII'ORNEY March 23, 1943. G. w. ALLAN ETAL TYPOGRAPHICAL MACHINE 2 Sheets-Sheet 2 Filed Jan. 31, 1942 INVENTORS GEORGE W.ALLAN 82 x251" H.5IMPSON ATTORNEY Patented Mar. 23, 1943 2,314,324 TYPOGRAPHICAL MACHINE George W. Allan and lyn, N. Y., assignors Brooklyn, N. Y., a corpo Albert H. Simpson, Brook- Intertype Corporation, ration of New York Application January 31, 1942, Serial No. 429,070

31 Claims.

This invention relates to improvements in typographical composing machines of the general organization in Letters Patent 436,532 granted September 16, 1890, and is directed more particularly to improvements applicable to modern commercial machines of this class equipped with a column of superposed magazines which is shiftable fore and aft as a unit in the machine frame in order to bring one or another magazine, or different pairs thereof, into operative relation with the matrix assembling and distributing devices of the machine.

' Broadly stated, the present improvements concern a brake mechanism which is operative preferably first to check the momentum of parts involved in the magazine shifting operation and then positively to arrest the shifting movement by action either directly or indirectly on the col-' umn of magazines or the shifting devices or both (according to the structural and operative relation between such parts) as a desired or selected magazine approaches and then finally reaches a position for proper registration with the assembling and distributing devices with which it is intended to cooperate, the purpose being to avoid any tendency toward over-drive or over-run of the column of magazines due to the momentum induced by the shifting operation and/or to unbalanced conditions arising from change of load or inclination of the surfaces on which the column of magazines is supported in the machine.

To explain briefly, the colurrm of magazines together with their respective underlying frames and the matrices contained in each magazine represents a very considerable load. This load is supported for fore and aft shifting movement in an inclined path and in practice it is usually counterbalanced so that within reasonable limits it can be shifted in either direction upon application of about the same amount of power. Nevertheless, and especially when the shifting operation is performed by power driven mechanism rather than by hand, it is difficult to timethe disconnecting or the cutting-01f of the source of power so accurately as to assure bringing the column to dead rest with the selected magazine in the required exact registration with associated parts of the machine. For this purpose it has been proposed to project into the path of shifting movement an interponent such as a spring pressed bolt or the like arranged to snap or otherwise enter in direct and positive engagement with the moving column at the critical stopping point. Such arrangements are not only troublesome from the standpoint of setting and maintaining them in accurate operating relation but give rise to abrupt stopping and consequent wear, strain and binding of the parts involved. Moreover such arrangements require additional mechanism for effecting their release or disengagement prior toeach shifting operation and must be operated for such release against such unbalanced portion of the weight of the magazine column as may act upon them in holding or in locating the column in a position of rest.

To avoid these and other disadvantages the present invention provides a simple and efiective brake mechanism the operation of which is controlled by a part involved in the shifting operation, for example, by the magazine unit or a member associated therewith upon arrival of a desired or selected magazine substantially at its operating position, the arrangement being such as automatically to effect application of the brake, preferably gradually, at a predetermined instant prior to arrival of the selected magazine at its required operating position (for example, just after or simultaneously with the cutting off of the motive power in the case of a power drive) whereby to check the momentum of the shifting unit and finally to stop the shifting movement entirely as the selected magazine settles firmly but gently against a fixed locating stop. Provision is also made for releasing the brake, preferably automatically and immediately after arrival of the selected magazine in operating position, thus avoiding the necessity for manipulation of associated parts to eliminate resistance or drag of the brake at the start of and/or. during a succeeding shifting operation. The brake provided by the invention may be operated either mechanically or electrically, it being controlled preferably from a single actuating element disposed for actuation each time a magazine or any selected pair of magazines approaches operating position.

In the accompanying drawings, two embodiments of the invention are shown merely in preferred form and by way of example, and obviously many changes and variations may be. made .in the fOrm and arrangement of the parts and their mode of operation without departing from the spirit of the invention; It is to be understood, therefore, that the invention is not lim ited to any specific form or embodiment except insofar as such limitations are expressed in the claims.

Referring to the drawings:

5 Fig. 1 is a side elevation of a portion of a typographical machine and shows an electrically operated brake according to the invention applied to the power shift devices for the magazine unit.

Fig. 2 is a fragmentary section taken on line 2-2 in Fig. 1.

Fig. 3 is a perspective view from the front of the machine of the lower right hand corner of the assembler front, the usual front cover plate being omitted in order to show the arrangement of switches operated by the magazine selecting lever, one for the power drive and the other for the electrically operated brake mechanism of the invention.

Fig. 4 represents diagrammatically the contacts of the switches in Fig. 3 and shows the switch for the power drive closed by the initial movement of the magazine selecting lever from inactive position whereby to start a shifting operation.

Fig. 5 is similar to Fig. 4 but shows both the power drive and the brake switches closed by the magazine selecting lever as the latter is pressed fully into active position during the shifting operation.

Fig. 6 is a circuit diagram showing the connections involved in the essential circuits for controlling the power drive and the electrically operated brake mechanism of the invention.

Fig. 7 is a side elevation of a portion of the machine shown in Fig. 1 but shows an arrangement of connections for operating the brake device mechanically instead of electrically.

Fig. 8 represents diagrammatically the different normal or rest positions occupied by the master control switch for the power drive when different pairs of magazines are active and indicates the direction and extent of manual and automatic movement of the switch components from each said position to the other in selecting different magazines.

As previously intimated, the improvements according to the invention are especially useful in connection with power driven magazine shifting mechanism and such improvements are herein shown and described in a form applicable to the power shift devices disclosed in our Letters Patent No. 2,199,772 to which reference may be had for full details of the entire construction and operation. For present purposes it is deemed sufficient to discuss briefly only such'details of such construction as are concerned directly with the application and operation of the brake mechanism of the present invention. Thus, for illustrative purposes, there is shown in Fig. 1 a shiftable magazine unit comprising four superposed magazines A supported respectively on underlying frames B which are secured together at opposite sides by suitable tie plates, one such plate C being shown. The magazine unit is supported for fore and aft shifting movement in the frame of the machine in substantially the same manner as shown in our prior Patent No. 2,199,772 which in turn follows the general arrangement disclosed in Letters Patent No. 2,103,980 granted December 28, 1937, to H. R. Freund.

Briefly, the unit is supported at opposite sides toward its upper end by rollers I0 carried by a cross shaft H secured near its opposite ends in flanges I2 on the underside of the lowermost magazine frame B, the rollers H! resting on inclined tracks 13 formed on the top edge and toward the rear of the opposed rigid side frame members D. Shaft H is loosely connected by curved links it (one at each side of the machine) to a lower cross shaft 15 provided at opposite ends with pinions lii keyed to the shaft and adapted to travel on toothed racks I! when the shaft is turned, the links i 4 thus serving to transmit fore and aft movement to the magazine unit along the inclined tracks 13. At a forward point toward its lower end the magazine unit is supported by rollers l8 mountd on studs in the opposed tie plates C and adapted to travel on cam plates I 9 secured to the inner face of the opposed side frame members D, the plates 19 being so shaped as to impart to the lower end of the unit during its fore and aft movement the raising and lowering action necessary to clear the upper ends of the escapement actuating reeds 20, all in a manner fully described in Patent No. 2,103,980 hereinabove referred to. It will be observed that the cam plates [9 provide three low positions for the rollers I3, the rear position shown in Fig. l which places the upper pair of magazines in operating position, the middle position for the middle pair of magazines, and the forward position for the lower pair.

For turning the shaft I 5 by power, and as disclosed in our prior Patent No. 2,199,772, there is provided a reversible gear reduction motor 2| the drive shaft of which is connected by a belt 22 to a pulley 23 keyed to the rear end of a spindle 24 the axis of which is offset from the motor shaft. and extends fore and aft along one side of the magazine unit parallel to the racks ll. Spindle 24 is threaded over a portion 25 thereof (indicated by dot-dash lines) at least equal to the length of the racks I! which are long enough to cover the full range of fore and aft shifting, and the threaded spindle engages a worm gear 25 secured to shaft [5 at a point on the shaft directly below the axis of the spindle; Accordingly, when the motor is in operation it drives the spindle 24 and causes shaft 15 to travel either forwardly or rearwardly along racks l1, according to the direction of rotation of the motor, and results in a corresponding forward or rearward shifting of the magazine unit.

The operation of motor 2| is controlled by a master switch comprising relative movablev elements 2'! and 28, these elements corresponding respectively to'the contact box and associated cam plate disclosed in our prior Patent No. 2,199,772 to which reference may be had for more complete details than it is deemed necessary to dwell upon here. Briefly, the control switch elements 2? and 28 are normally disposed side by side in adjacent planes when the column of magazines is at rest, and are supported for relative movement in their respective planes in guideways formed on a bracket 29 secured to the machine framen To initiate a magazine shifting operation element 21 is first adjusted or shifted relative to element 28 by manual manipulation of the magazine selecting lever 39 from a position denoting the magazine or pair thereof in use to a position denoting the newly desired magazine or pair thereof. Fig. 1 clearly shows the lever 39 rockably mounted on a fixed pivot 31 and having an arm 32 loosely connected to a link 33 pivoted to the side of element 21 whereby to enable manual adjustment of the latter. Such change in the setting of element 2'! relative to element 28 effects closing of a set of motor circuit controlling contacts (not shown, but contained within element 28 and cooperative with actuating cams carried by element 21) so that the actual shifting operation can proceed. During the shifting movement of the magazines, element 28 is moved automatically from the position it occupied prior to the manual adjustment of element 27 to a position again opposite to the latter through the rack bar 34 suitably secured to element 28 and actuated in timed relation to the shifting movement by a pinion 34 on shaft l which engages teeth along the top edge of the bar 34 (all as in our prior patent referred to). Upon arrival of element 28 opposite to the newly set position of element 21 the contact and cam devices of said elements cooperate to open the motor circuit and to terminate the shifting operation automatically, that is, to terminate the shift after the magazines have moved an extent predetermined by the extent of manual adjustment, in advance, of the magazine selecting lever.

As best seen in Fig. 3, the magazine selecting lever 30 may be adjusted prior to a shifting operation from any one to any other of a series of notches 35, 35 and 31 in acover plate 38 at the front of a bracket 39 secured to a fixed part of the machine frame, said notches designating the operating positions respectively of the upper, middle and lower pairs of magazines relative to the dual assembler throats 40 and 4| and corresponding so-called channel entrance passages (not shown) which cooperate as usual with the upper ends of the active magazines for guiding matrices thereinto from the distributing devices of the machine. It Will be understood that the number of notch positions for lever 35 in the cover plate 33 may correspond either to the number of individual magazines in the column or to the number of pairs thereof depending upon whether the machine is equipped with single or dual assembling and distributing facilities.

In Fig. 8, the elements 21 and 28 of the master control switch are represented diagrammatically side by side in the three different normal positions of rest they occupy when the upper, middle and lower pairs of magazines are active, each such coinciding position of the switch elements being denoted by a corresponding notch position for the selecting lever 30. The full line arrows indicate the direction and extent of manual adjustment by lever 39 of the switch element 21 relative to element 23 (from any one to any other notch position) to effect a corresponding predetermined extent of shifting movement of the magazine unit, and the dotted line arrows indicate the subsequent and resulting corresponding extent of movement automatically in the same direction of switch element 28 in order to restore the two switch elements to a normal side-by-side position upon completion of such predetermined amount of shifting movement. 7

For locating a selected pair of magazines in accurate register with the assembler throats and distributing devices of a machine of the general construction shown in Fig. 1, each magazine supporting frame is provided at opposite sides with edgewise projecting lugs 42 adapted to seat against the adjacent angular walls of a notch 43 in the upper edge of register plates 44, one such plate being provided on the inner side of each of the opposed side frame members D. Thus, when a shifting operation is initiated the column of magazines will be moved until the lugs 42 on the upper frame of the selected pair of magazines arrivein the bottom or vertexv of the opposed notches 43, the switch elements 21 and 28 then standing opposite to one another and thus opening the motor circuit through the controlling contacts of such switch elements. However, due to such factors as momentum and inequalities in the effectiveness or adjustment of the counterbalancingsystem under different load conditions (substitutionof different magazines containing agency of a fonts of matrices which differ in weight) it is difficult to time the break in the motor circuit precisely with the full seating of lugs 42 so that there is a tendency sometimes for inertia of the moving column to bring about an overrun slightly beyond a dead rest position with the locating lugs 42 seated firmly and accurately in the cooperative notches in plates 44. According to the present invention a brake device is provided to prevent such overrun by checking at the critical moment the momentum of the parts involved in the shifting operation and thus assure firm and accurate seating of the locating lugs 42 in the notches 43, there being provided in a series circuit, independent of the motor circuit, brake controlling switches generally designated 45 and 46 and a solenoid relay 4! which serve to effect application of the brake simultaneously or substantially so with the opening of the motor circuit and release of the brake after arrival of the selected pair of magazines in operative position.

According to the construction herein illustrated, merely by way of example, the brake device comprises a flexibl friction band 48 disposed about a flange 49 which may conveniently be formed integral with the spindle drivingpulley 23, the band 48 being split at one point and the ends being bent outwardly to form in effect radially projecting lugs through which a bolt 55 passes freely, the bolt 59 being threaded into the upper arm 5i of a bracket 52 rigidly secured to the motor supporting bracket 53 and passing freely through an aperture in the lower arm 54 of the bracket 52, all as clearly shown in Fig. 1. A cam arm 55 pivoted at 56 on bolt 58 freely engages against the underside of one lug of the brakeband 48 which lug is free to move on bolt 50, an adjusting nut 51 on bolt 59 overlying the other lug of the band so as to fix its position on bolt 55. A light spring 58 encircling bolt 59 between the opposed lugs of the brake band serves to keep it normally in expanded condition. The cam arm 55 is loosely pivoted to the plunger 59 of the solenoid relay 4'! and another light spring 58 serves to rock the cam arm 55 counterclockwise to permit expansion-of the brakeband by spring 58 when relay 4? is deenergized.

It will be evident that a downward pull exerted on plunger 59 when relay 4'! is energized will rock the cam arm 55 clockwise about its pivot 56 (slightly compressing springs 58 and 58 and result in contraction of the brakeband 4B and gripping thereof on the flange 49, the lower or free lug of the split band being advanced toward the upper or fixed lug by the slightly eccentric cam face 50 of arm 55. It will'also be observed that while the brakeband is contracted more or less quickly and the actual amount of contraction is relatively small, the gentle rise of the cam face fill brings about its engagement frictionally with the flange of the driving pulley gradually enough first to check momentum and thus produce a somewhat cushioned stopping action. This arrangement has the obvious advantage of avoiding stopping of the shifting movement with a sudden shock such as would result from a rigid interponent projected into the pathof shifting movement or into direct and positive engagement with the magazine unit or the, shifting organs.

For governing the flow of energy to the relay 4? in order to apply the brake there is provided the aforementioned switches 45 and 46 which are connected in series with the relay coil and the power line independent of the motor circuit, see

Fig. 6. Switch 45' comprises a pair of flat spring contact fingers mounted within but insulated from asuitable housing which latteris supportedas-by an angle bracket 6| securedto the machine frame member D as best seen in Fig. 2. An operating plunger 62 rests by gravity at its lower 'end (provided with an insulated tip) against one of the contact fingers of switch 45 and projects upwardly out of the switch housing through a suitable guideway formed in the register plate 44 on the right hand frame member D, the plunger 62 being slidable in its guideway in the plate 44 and being of such length that its upper end projects into exposed position in the notch t3" whenever the contacts of switch 45 are open, the springy nature of the upper contact finger of the switch being sufficient to so hold the plunger. This condition is clearly represented in Fig. 6 and it will be apparent that plunger 62 is susceptible of depression to close the switch contacts upon entry into the notch 43 of a magazine locating lug 42. It will also be apparent that the plunger 82 is held depressed and holds switch 45 closed whenever a lug 42 rests in notch 43.

Closing of switch 45, however, will not result in energizing the relay 4'! to operate the brake except when switch G5 is also closed. This occurs under conditions which will become clear from a brief review of the general arrangement, as fully set forth in our Patent No. 2,199,772, of certain parts associated with the magazine selecting lever 36. Thus, as best seen in Figs. 3 and 6, the motor circuit includes a safety switch, generally designated 63 and similar in all respects to the switch 46, switch 63 being provided with a plunger 64 for actuating its contact fingers. Plunger 5-; has an insulated tip and is freely slid able in a suitable bushing at one side of the switch housing which latter is secured to an upright bracket 55 rigidly mounted on a portion of the machine frame. The magazine selecting lever 3t is flexible sidewise owing to the insertion over a portion of its length of the flat springy blade t8 (see Fig. 1) and this flexibility is utilized to actuate the switch plunger 64 through the agency of a plate El. Plate i5! is adapted to swing on a vertical axis on upper and lower'trunnions 68 (only the upper one is shown) and the body of the plate is disposed between lever 35 and plunger 64 in such manner that one side normally lies just clear of the exposed end of the plunger while a flange 59 along the front edge of the other side of the plate lies in contact with the stem of lever 30.

Thus, when lever 30 is adjusted from one notch position to another in the cover plate 38 and displaces the master control switch element 21 relative to the element 28 to effect closing of the motor circuit, as hereinbefore explained, such circuit will not in fact be completed until manual pressure sidewise (to the left in Fig. 3) on lever 36 causes plunger 64, actuated by plate 61, to close the contacts of switch 63. The shifting movement of the magazine unit or column will then start and will continue so long as side pressure is exerted on lever '36 to hold the safety switch 63 closed, but in any event the power for shifting will be cut off automatically as soon as the master switch elements 2'! and 28 coincide, that is, when the magazine pair corresponding to the notch position to which lever 30 was adjusted arrives substantially in operating posi tion.

Returning now to the brake controlling switches 45 and 46 through which current flows under the proper conditions to'energize the relay 41 and apply the brake, switch 45 is operated by the magazine selecting lever and plate B'I'in a similar manner to that just described with regard to switch 63'. Thus, switch 46 is also mounted on bracket'65 immediately above the motor safety switch 63 but is disposed with the exposed end of its contact actuating plunger 10 somewhat further away from the side of the swinging plate 6'1. By this arrangement it will be apparent that when sidewise pressure is exerted on lever 30 the contacts of the motor circuit switch 63 will be closed in advance of closing of the contacts of the brake circuit switch 45. Conversely, when sidewise pressure on lever 36 is relieved or discontinued the brake switch 46 will open prior to opening of the motor'switch 63.

The action of plate 6'! (moved by lever 30) on switches tt and 63 is diagrammatically illustrated in Figs. 4 and 5 in which, for the purpose of clarity, the switch elements are represented as if disposed one behind the other relative to the swingable plate 6'! instead of one above the other as shown in Fig. 3. In Fig. 4 the initial sidewise pressure on lever 36 has swung plate 61 from its normal position far enough only to allow plunger 64 to close the contacts of the motor switch 63. In Fig, 5 plate 5? has been swung fur ther by lever 36 (as far as permitted by the depth of the notches in the cover plate 38) and has depressed plunger 10 sufficiently to also close the contacts of the brake switch 46.

From the foregoing it will be seen that whenever the lever 30 is adjusted from one notch position to another and pressed sidewise into the n'ewly selected notch the motor circuit will be closed through the safety switch 63 and the contacts of the master switch element 23 (contacts which close whenever element 21 is displaced by adjustment of lever 39 as hereinbefore explained), and the shifting movement of the magazine unit will commence immediately upon closing of the safety switch 63 which occurs, as already stated, slightly before plate 61. swings far enough to close the brake switch 46, that is, before lever 39 has been pressed sidewise far enough to fully actuate the brake switch plunger 70. By the time the brake switch 45 is closed by the full sidewise swing of plate -31 by lever 30 (a fractional part of a second after switch 63 is closed) the forward end of the magazine unit (which starts to move the instant switch 53 closes) will have elevated suificiently (due to the sharp rise on cam plates I9,over which rollers l8 travel) to allow-plunger to rise under the spring action of the contact arm in switch 65 upon which the plunger rests by gravity, thus opening switch 45 at about the same instant that switch 46 becomes closed. Since the brake circuit will then be incomplete the brake will be relaxed and offer no resistance either at the start of or during the ensuing shifting movement. But application of the brake to check the momentum of the moving column of magazines and finally halt the shifting movement will take place as soonas the particularlug 42 which is to locate the newly selected magazine depresses plunger 62 of the brake switch 45 and closes the contacts of this switch, it being observed that the brake circuit is then momentarily completed through switches 45 and 46' and the coil of relay ll. It will be understood that the contact fingers of switch 45 are so adjusted as to be closed completely by plunger-62 at about the same time that a lug 42 assumes" full seatingposition'in notch 43, and

that the contacts of the master switch (21, 28) are set so as to open the motor circuit simultaneously or substantially so with such closing of switch 45.

As previously pointed out and as in our Patent No, 2,199,772, opening of the motor circuit takes place automatically when the switch elements 21 and 28 coincide or when the selected magazine arrives in operating position, and as herein set forth the brake is applied at about the same time the motor circuit is opened in order at such time positively to check the momentum of the magazine unit. Since the shifting operation is then completed, side pressure manually on lever is discontinued and the springy blade 66 acts to swing lever outwardly from the notch into which it was pressed. Switches 46 and 63 are then free to spring open, the springy nature of their contact fingers pressing the plungers 64 and It and the plate 61 back to normal position. Thus, although the brake switch is held closed by lug 42 resting on plunger 62 when the magazine unit stands at rest, the brake switch 46 remains open. Relay 41, therefore, is energized only momentarily near the completion of each shifting operation, that is, during the short period from the time a lug 42 closes switch 45 (as the selected magazine approaches its rest position) to the time immediately following when switch 45 is opened due to relieving the manual pressure on the magazine selecting lever 30.

It will now be clear that the arrangement of switches 27, 28 and 53 in the motor circuit and switches 45 and 45 in the brake circuit is such that both circuits will never be completed simultaneously'except perhaps for a fraction of a second as a selected magazine closely approaches its final position of rest. When the motor circuit is completed through switches 21, 28 and 63 (a condition which exists only during the actual shifting operation) the brake switch 45 will be open. When brake switch 45 closes, as it does upon arrival of a selected magazine in operating position, and brake switch 46 is also closed due to the manual pressure on lever 30, the motor switch 27, 28 will be open or about to open due to completion of the shifting operation. And when brake switch 45 is held closed, as it is when the magazine unit is at rest, the brake switch 45 and the motor switches 63 and 21, 28 will all be open. The foregoing conditions will all be evident upon tracing the circuits represented in Fig. 6.

It may be pointed out that if the magazine selecting lever 31! should happen to be pressed sidewise (either inadvertently or intentionally) into the notch before which it stands when the magazine unit is at rest or when the machine is idle, the motor safety switch 63 will close so long as such side pressure is applied, but the master switch 27, 28 will remain open and no shifting movement will take place, it being remembered that the motor circuit through the latter switch can close only when the element 2'! is actually displaced relative to element 23 through adjusting the lever 36 from one notch position to another. The brake switch 45 will also close when lever out being adjusted to a different notch position and the brake circuit through this switch, switch 46 and relay 41 will then be completed and the brake will be applied so long as side pressure is exerted on lever 30 as by holding it manually.

However, such application of the brake when the magazines or the machine stand idle will do no harm whatever and need not occur at all except 30 is pressed sidewise with-.

through inadvertence or as a result of willful manipulation.

As previously stated, the brake device of the present invention may be operated either electrically or mechanically. The arrangement for mechanical operation is .clearly shown in Fig. 7 wherein the brake proper comprises the aforementioned flexible brakeband 48 disposed about the flange 49 of the power driven pulley 23. In the present instance the brakeband is contracted by a cam arm H similar to the previously described cam arm but adapted to be rocked about its pivot 12 on rod 50 by a brake operating rod 13 loosely connected at 14 to arm 1 I. A head member threadedon the forward end of rod 13 is confined laterally in a vertically elongated guide slot 16 formed in an angle bracket 11 secured to the rigid frame member D and a hook described,

formed at the end of member 15 is adapted to engage over a small roller 78 carried on a pin in the free end of a rocker plate 19 which latter is pivoted at '80 to frame member D. A spring 8| hooked to the head 15 and to rocker plate 19 serves constantly to urge these elements into engaging relation, that is, to maintain engagement of the hook over the roller so long as no greater force acts to separate them. A spring 82 hooked to the plate 19 and to apin in frame member D urges the plate in a clockwise direction against a stop pin 83.

Rocker plate 19 is provided at its bottom edge with a lug 84 (bent inwardly as viewed in Fig. 7)

which carries an adjustable follower pin 85 on which the lower end of plunger 62, hereinbefore rests freely by gravity. The lower end of plunger 62 is slightly rounded in order to permit rolling contact on pin 85 when plate 19 is rocked in a manner shortly to appear. When plate 19 rests against stop pin 83, the upper end of plunger 62, as heretofore, is adapted to project upwardly where it is exposed in notch 43 in register plate 44 and this condition will prevail during the operation of shifting the magazine unit at which time none of the magazine locating 1ugs42'rest in the notch 43. Such condition is represented in Fig.7 in which a lug 42, indicated by dot-dash lines, has arrived just at a position of contact'with the upper end of plunger 62 and the head member 15 of the brake operating rod 13 is hooked over roller 18. In this position of the parts the brakeband 48 is held expanded by spring 58, a brake release spring 86 hooked to the pivot 14 and to a pin 81 in the rigid bracket 52 acting to dispose the low portion of cam arm H beneath the free lower lug of the brakeband and to exert a rearward pull on the brake operating rod 13-.

Application of the brake takes place at about the same time the motive power for shifting the magazine unit is cut off and is effected through depression of plunger 62 by a magazine locating lug 42 as the latter approaches seating position in notch 43.- Thus, as a lug 42 settles in notch 43 depression of plunger 62 acting on pin 85 rocks plate 19 counterclockwise about its pivot against the tension of springs 82, and 59. Since spring 81, assisted by spring 82, maintains the head member 15 hooked over roller 18 during such rocking of plate 19, a forward pull is exerted on the brake operating rod i3 which in turn rocks the cam arm 7| about its pivot 12. This results in contracting the brakeband 43 and the relative disposition and adjustment of the parts is such that the maximum contraction occurs just prior to full seating of lug 42 in notch 63, thus fully checking the momentum of the moving parts '(after cutting off the actual ource ofpower) an instant in advance oi arrival ofthe lug to full Seating position in notch 43.

' Means is provided for releasing thejbrakes substantially at the moment a lug 42 finally seats in notch 43. Such means comprises an adjustable stop 88 which conveniently may be secured in a lug 89 constituting part of the anglebraclaet TI and which has the purpose of stripping the hooked hea'd member 15 off roller 78 at the proper moment. Thus it will be evident that as plate 19 is rocked by plunger 62 the brake operating rod 13 hooked over roller 78 gswings downward about its rear pivot 14, slot 16 in bracket T! being long enough to permit such angular movement of the rod 13. However, during the last fractional portion of the depression of plunger 62 by lug 42, the headportion 15 'encounters stop 88 which then holds rod 13 rigid relative to roller'18 while plate 19 completes its counterclockwise swing under the influence of plunger 62. The result is that the hooked head member 15 is stripped from 'engagem'entw'ith roller 18 whereupon spring .85 is free to rock cam arm H to the vertical or brake releasing position shown in Fig. 1. A pin '90 in headmember -75 limits the action of spring86 by stopping against the front face of bracket 11. Spring 58 serves, of course, to expand theflbrfkeband 48 as soon as ,cam arm H i rocked to brake releasing position and springs 8l 'andBZ acting on rocker-plate .19 keep roller 13 rmly pressed against the sloping forward end of 'thefhook'on member 15.

The brake remains released when the magazines are at rest and prior to andv during the greater part of .each shifting operation. The hooked end of member 15 becomes engaged over roller 18 to reset the brake for application toward the end of a shifting operation as soon as lug .42 rises out .ofnotch43 at the start of the shift. Thus it will be apparent that when plunger is relievedof the pressure of a lug 42 rocker plate 719 is freeto swing clockwise to the limit fixed by stop pin 83, pin 85 then acting to elevate the plunger to exposed position in notch 43 and roller H18 riding into the hooked end of member la. The threaded connection between member and rod "(3 enables adjustments to be made for correct timing of the stop positions of parts I9 and 1-5 respectively against their stop pins 83 and 951, that is, such timing as will ensure full and intimate engagement'of roller 18 in the cooperating'hooked end of member 15 when the aforesaid parts rest against their stops.

We claim as our invention:

1. In a typographical machine, thecombination of aplurality of magazines shiftable fore and aft as a unit, mechanism operable to impart shifting movement to aid unit to bring a selected magazine into operating position, and brake means adapted 'for factuation by saiduni't and operative upon arrival of'the selected magazine in such position automatically tocooperate with a part of said mechanism to arrest the shifting movement imparted thereby to said unit.

.2. A combination according to claim 1 wherein the mechanism for imparting shifting movement includes a rotary shaft coupled to the magazine unit,'and wherein the brake means specified includes an'elementadapted to frictionally engage said rotary shaft to arrest the shifting movement and includes =alsoc'onnections actuated by the magazine unit to effect such vfrictional engagement when and as required.

3. In a typographical machine,.the combination of a plurality of magazines 'shiftable, fore and aft as a unit, reversible powerdriven mechanism operable to shift said unit in either direction to bring a selected magazine into operating position, brake means operative upon said mechanism to prevent overrun or rebound of said unit upon arrival of the selected magazine in operating position, and connecting means between the magazine unit and said power driven mechaanisin for automatically controlling the operation of said brake means.

4. In a typographical machine, the combination of a plurality of magazines shiftable fore and aft as a unit, mechanism operableto shift said unit to bring a selected magazine intooperating position, and brake means operative immediately in advance of arrival of the selected magazine insuch position automatically to engage directly with said mechanism to check,the momentum thereof and of said unit as theselected magazine approaches its operating position.

5. In a typographical machine, the combination of a plurality of magazines shiftable fore and aft as a unit, mechanismoperable to shift said unit to bring a selected magazine into operating position, and brake means operative automatically upon approach of the selected magazine to such position to cooperate with a part of the shifting mechanism whereby to check the momentum of the shifting unit and completely to arrest its movement when the selected magazine reaches said operating position.

6. A combination according to claim 5, wherein the shifting mechanism is constituted by power driven devices including a rotary shaft, and wherein the brake means specified includes .an element adapted for cooperation with .saidshaft to resist itsrotation and connections from said element adapted for actuation by a part associated with "the magazine unit to effect such cooperation when and as required.

7. A combination according to claim 5, wherein the shifting mechanism is constituted by power driven devices including a rotary shaft, and wherein the brake means specified includes an element adapted for cooperation with said shaft to resist its rotation substantially upon arrival of the selected magazine in operating position and brake actuating devices operated by a part associated with the magazine unit for determining the operating position of the selected magazine.

8. A combination according to claim 5, wherein the shifting mechanism is constituted by power driven devices including a rotary shaft, and wherein the brake means specified includes a flexible band adapted to 'frictionally engage said shaftand connections actuated by the magazine unit for gradually contracting said band to efiect such engagement when and as required.

9. A combination according to claim 5, wherein the shiftingmechanism includes a rotary shaft directly associated with the magazine unit and driving connections adapted to induce rotatlon of said shaft when desired, and wherein the brake means specified includes devices actuated by the magazine unit and operativeto efiect application of the brake at the proper time to said driving connections.

10. In a typographical machine, the combination of a pliuality of magazines shiftable fore tion of a plurality of magazines shiftable fore and aft as a unit, mechanism operable to shift said unit to bring a selected one of the magazines into operating position, brake means cooperative with said shifting mechanism and operative automatically upon arrival of the selected magazine in such position to arrest the shifting movement, and means controlled by the magazine unit for governing the operation of said brake means and operative to effect both the application and release of the brake.

12. In a typographical machine, the combination of a plurality of magazines shiftable fore and aft as a unit, mechanism for shifting said unit to bring a selected one of the magazines into operating position, brake means cooperative with said shifting mechanism, and brake actuating devices responsive to the approach of the selected magazine to such position to effect such cooperation and thereby apply the brake and responsive to the full seating of such magazine in such position to effect release of said brake.

13. In a typographical machine, the combination of a plurality of magazines shiftable fore and aft as a unit, mechanism for shifting said. unit to bring a selected one of the magazines into operating position, brake means cooperative with said shifting mechanism, and brake actuating I devices responsive to the approach of the selected magazine to such position to effect a gradual application of the brake to check the momentum of the moving parts and responsive to the full seating of such magazine to fully apply the brake and then effect its release.

14. In a typographical machine, the combination of a plurality of magazines shiftable fore and aft as a unit, mechanism for shifting said unit to bring a selected magazine into operating position, a brake adapted for cooperation with said shifting mechanism at predetermined intervals corresponding to the operating position of each magazine, and brake actuating devices responsive to the approach of any magazine to its operating position to effect such cooperation of the brake to first retard and then to arrest the shifting movement.

15. A combination according to claim 14, wherein the brake actuating devices are operated automatically by a device on the magazine unit which determines the operating position of the selected magazine.

16. In a typographical machine, the combination of a plurality of magazines shifta-ble as a unit in opposite directions, mechanism operable to shift said unit to bring a selected magazine into operating position, control means for initiating and terminating the operation of said mechanism as required, and brake means adapted for cooperation with said mechanism in timed relation with the operation thereof under the influence of said control means.

1'7. A combination according to claim 16, wherein the control means specified is operated manually to initiate the operation of the shifting mechanism and is adapted automatically to terminate such operation as required, and wherein the brake means specified includes devices operable to apply the brake substantially simultaneously with the termination of the operation of the shifting mechanism by said control means and to subsequently release the brake.

, 18. In a typographical machine, the combination of a plurality of magazines shiftable as a unit in opposite directions, reversible mechanism for effecting the shifting movement required to bring any selected magazine into operating position, control means for initiating and terminating the operation of said shifting mechanism, and brake means including devices operative to effect application of the brake substantially simultaneously with termination of the operation of said shifting mechanism by said control means and devices operative to effect release of the brake upon arrival of the selected magazine in operating position.

I 19. A combination according to wherein the devices included in the brake means are operative to effect the application and the release of the brake automatically, said devices being actuated by a part associated with the selected magazine.

20. In a typographical machine, the combination of a plurality of magazines 'shiftable fore and aft as a unit, mechanism for shifting said unit to bring a selected one of the magazines into operating position, brake means adapted to arrest the shifting movement at as many points as there are magazines in the unit thereof, and brake actuating devices for eifecting application of the brake automatically at each of said points, said devices being operated through a common element cooperative with a member associated with each of the magazines.

21. In a typographical machine, the combination of a plurality of magazines shiftable fore and aft as a unit, mechanism for shifting said unit to bring a selected one of the magazines into operating position, brake means adapted to arrest the shifting movementat as many points as there are magazines in the unit thereof, and brake actuating devices for effecting application of the brake automatically at each of said points, said devices being operated by a member associated with each magazine for determining its operating position and said memberand said element acting to effect release of the brake upon arrival of any selected magazine in its operating position.

22. In a typographical machine, the comb-ination of a plurality of magazines shiftable as a unit in opposite directions,'reversible electrically operated mechanism for shifting said unit to bring a selected magazine into operating position, switch devices for controlling the operation of said mechanism and adapted to initiate and terminate such operation for a given extent of shift in either direction, and brake means including a brake proper for arresting the shifting movement and switch devices adapted automatically to effect in sequence the application and release of the brake substantially simultaneously with the termination of the shifting operation.

23. In a typographical machine, the combination of a plurality of magazines shiftable as a unit in opposite directions, reversible power driven mechanism for shifting said unit to bring a selected magazine into operating position, adjustable control means for initiating and terminating the operation of said mechanism and adapted according to the adjustment thereof claim 18,,

automatically togovern the extent of shifting movement required to select a given magazine, a brake adapted for cooperation momentarily with said mechanism upon completion of such extent of movement, and devices operative automatically to effect such cooperation to apply the brake and thereafter to release it in timed relation with termination of the shifting movement by said adjustable control means.

24. In a typographical machine, the combination of a plurality of magazines shiftable as a unit in opposite directions, reversible power driven mechanism for shifting said unit to bring any selected magazine into operating position, manually adjustable control means adapted upon adjustment to initiate the operation of said mechanism and to terminate such operation automatically upon arrival of the selected magazine in its operating position, and brake means operative automatically to arrest the shifting movement of said unit upon termination of the operation of said power driven mechanism. I

25. A combination according to claim 24, wherein the brake means includes devices arranged for actuation by the magazine unit substantially upon completion of the extent of shift permitted by the adjustable control means.

26. In a typographical machine, the combina tion of a plurality of magazines shiftable as a unit in opposite directions, reversible power driven mechanism for shifting said unit to bring any selected magazine into operating position, control means adapted to initiate and terminate the operation of said mechanism for the required extent of shift in either direction, a brake for arresting the shifting movement upon termination of the operation of said mechanism, and devices operative automatically to eiTect application of the brake to arrest such movement and to maintain said brake in released condition prior to initiating a succeeding shifting operation.

27. In a typographical machine, the combination of a plurality of magazines shiftable as a unit in opposite directions, reversible power driven mechanism for shifting said unit diiTerent extents as required to select one or another magazine for use, adjustable magazine selecting means operative upon adjustment to initiate the operation of said mechanism and to terminate such operation as required, brake means including devices adapted automatically to effect application of the brake to arrest the shifting movement upon termination of the operation of said power driven mechanism and to effect subsequent release of the brake, and means operated by the magazine selecting means for conditioning said brake means for application and'release, as required.

28. In a typographical machine, the combination of a plurality of magazines shiftable as a unit in opposite directions, reversible power driven mechanism for shifting said unit different extents to bring a selected magazine into operating position, magazine selecting means operable to condition said mechanism for operation as required, brake means including a brake proper normally held released and devices operative under control of the selected magazine to apply the brake to arrest the shifting movement, and means controlled by the magazine selecting means for conditioning said brake for such application and for conditioning it for release upon arrival of the selected magazine in operating position.

29. In a typographical machine, the combination of a plurality of magazines shiftable as a unit in opposite directions, reversible power driven mechanism for shifting said unit different extents to bring a selected magazine into operating position, magazine selecting means operable to condition said mechanism for operation as required, brake means including devices operative under control of the selected magazine to apply the brake to arrest the shifting movement and also devices for effecting release of the brake prior to each conditioning of the power driven mechanism for operation by the magazine selecting means.

30. In a typographical machine, the combination of a plurality of magazines shiftable as a unit in opposite directions, reversible mechanism for shifting said unit to bring a selected magazine into operating position, brake means for arresting the shifting movement upon arrival of the selected magazine in such position, and brake operating devices constructed for movement in one direction only in effecting application and release of the brake.

31. A combination according to claim 30, wherein the brake operating devices are ar ranged for movement by a member carried by the magazine unit, partial movement by said member effecting application of the brake as the selected magazine approaches its operating position and continued further movement efiecting release of the brake when said magazine arrives in said position.

GEORGE W. ALLAN. ALBERT H. SIMPSON.

DISCLAIMER 2,314,324.Ge0rge W. Allan and Albert H. Simpson, Brooklyn, N. Y. TYPOGRAPHICAL MACHINE. Patent dated March 23, 1943. Displaimer filed January 21, 1944, by the assignee, Intertype Corporation. Hereby enters this disclaimer to claims 1, 3, 10, 11, 16, 17, 20, 24, and 25 of said Letters Patent.

[Qflicial Gazette February 22, 1944.]

Images