US1782468A - Typographical casting machine - Google Patents

Description

Nov. 25, 1930. A. w. F. GUEST TYPOGRAPHICAL CASTING MACHINE Filed May 25, 1929 2 Sheets-Sheet '1 n! um A TORN Y5 Nov. 25, 1930. A. w. F. cur-:51" 1,732,463

'- TYPOGRAPHICAL CASTING MACHINE Filed May 23 1929 2 Sheets-Shet 2" "xii ATTO NEYS' Patented Nov. 25, j i r i opposite. sidefaces and "UNITEDSTYATES PATENT OFFICE ALFRED w. r. Gunsr, on 'BROOKLYLLJNEW Yonx, AssIeNon 'rofiunnsnnmnnnnn use A a TYPE CQMPANY, A CORPORATION j TYroGnArrIIoAL CASTING MACHINE Application filed May 23, i This invention relates to typographical casting machines of the general organization represented in U. y S. Letters Patent No. 436,532 to'O. Mergenthaler, wherein type bars or slugs are cast in a mold and then ejected therefrom between two trimming knives, whichinsure the parallelism of their the exact thickness required. One of these knives is adjustably mounted in order that the distance between the two may be varied at will to accommodate slugs of different thicknesses. ,More particularly, it relates to a slug trimming mechanism of the general type shown and described inthe US. patents to D. S. Kennedy, Nos. 1,002,281 and-1,105,667, wherein the adjustments of the knife are effected against spring tension by means of a rotary sector plate operated bya hand lever and having a seriesof transverse concentrically arranged'screw studswhich project different distances from the inner face thereof and which thusdetermine the'extent of the ad-' justment required. a i The present invention contemplates certain improvements in this type of slugtri1nmingmechanism whereby, with a minimum of changes in the standard parts, the sector plate or gauge member will be relieved of spring pressure during its adjustment, so as i to facilitate the operation thereof and avoid excessive wear on the parts. To this end, the

improved mechanism includes an auxiliary hand levenwhich is first movable independently ofthe adjustinglever' to relieve the a gauge member of spring pressure, and which istli'en movable conjointly with said ad a pressedknife slide.

justing lever in setting the knife in its new position; In the preferred embodimentillustrated, the auxiliary hand lever is fast to the outer end of a rock shaft passing through a fulcrum pin on' which the gauge member is mounted, and atits inner end this rock shaft is provided with a cam arranged to engage a roller carried by the spring- 111 the accompanying drawings, the in-J vention has been, shownmerely in preferred form and by way ofexample, butobviously many changes and variations may be made 1929. see: No. 3 5,351..

therein and in out departure from its spirit. Itshould,

therefore, be understood that the invention" Fig. 2 is a front elevation of-F l i and- Fig. 3 is a horizontal section taken on the line 33 of-Fig. 2. i As best shown i119 Fig; 3, the

j adjustable knife A is fastened by screws are a slide 13-.

and is arranged opposite toand parallel with the fixed knife 7 A indicated by the dotted lines in For manufacturingreasons, the slide B is made in two sections B and B bothofwhichare mounted to move horizontally-ina supporting frame G bolted rigidly to the main frame of the machine. In its front face, the section B is formed with a pair of superposed horizontal grooves or rel cesses B adapted to accommodate spiral springs B, which bear against integral proections 0 on the fixedframe C and urge the its mode of operation withslide constantly endwise toward the right to i move the knife A away from the opposing knifeA 1 A rotary sector plate or gauge member I),

fixed toa fulcrumpin C held by a nut C in j i i the supporting frame, is the knife A'in its different adjusted positions, the said member being provided with a series of concentric which project di ner face. thereof and are arranged to selectively engage aihardened stud B? adjacent end of thesli de B.

knife A is caused to stand in one position or another, according to the'particular screwstud in action.

employed to sustain 7' ally disposed screw studsD fferent distances from the inattachedto the h As a result, the

The rotation of the gaugememherand the i i consequent adjustment of theknifeA inthe just described is effected by ineansof a handjlever E and operatively connected to said member throughthemedium of a segmental plate F, the latter being also journaled journaled onthe pin C 1 and formed with a hub portion F which interlocks with a corresponding hub portion D of the gauge member D. The plate F is formed with two concentric rows of perforations 7, which are adapted, when one or another of the screw studs D is properly engaged with the hardened stud B to register individually with similar locking perforations 0 formed in a fixed circular plate C secured to the supporting frame C.

The hand lever E is provided with a rocking lever or grip member E and with a pivote-d stop dog E the latter being located beneath the grip member so as to limit the inward movement thereof, but, for reasons presently to appear, being movable out of the path of same, when desired. The rocking of the grip lever E takes place against the tension of a compression spring E interposed between the free end portion thereof and the hand lever E, the opposite end of the grip lever E which is located nearer the fulcrum stud C being held resiliently by said spring flat against the hand lever E. At this point, the hand lever E is provided with a pair of horizontal slide pins E*, which also pass through the inner end of the grip member E being formed with head portions E by which the pins may be moved to the right (Fig. 3) when the grip member is rocked about its pivotal axis. These slide pins E are adapted to engage the perforations f in the plate F and are also made sufficiently long to engage in the corresponding perforations c in the fixed plate C Flat spring fingers e of a thin bifurcated plate E, secured to the member E engage the heads of the pins E and tend constantly to urge the latter into locking engagement with the plates C According to the foregoing arrangement, and with the parts in the position shown in Fig. 3, when the grip lever E is rocked into engagement with the stop dog E the pins E will be withdrawn from the plate C so as thus to unlock the gauge member D, but they still maintain their engagement with the plate F, and consequently as the hand lever E is swung about the fulcrum stud C the gauge member D will be rotated in order to set the knife A at the desired distance from the fixed knife A After the adjustment has been effected and as the hand lever E is released, the spring E serves to restore the grip lever E to its original position and, through the spring fingers e, to press the pins E into locking engagement with differently located apertures 0 in the fixed plate G In order to adjust the knives to any given measure, the block is usually provided with a graduated scale D which (as shown in Fig. 2) is carried by the gauge member D and indicates accurately the position of the knife A in relation to the fixed knife A when one or another of the graduations thereon is brought into registry with a mark or pointer (Z on the frame C.

If, by an adjustment, the hand lever E happens to occupy a position where it is likely to interfere with the movements of the operator, the stop dog E is turned from its position beneath the grip lever E so that the latter may be allowed sufficient movement to withdraw the pins clear of both the fixed plate C and the rotary plate F, and there by disconnect the handle from the gauge member D. The handle may then be shifted to a position out of the way, the pins E being adapted as the handle is released to reen gage the plates F and C, respectively, and thus to relock the gauge member against arcidental displacement.

So far as described, the parts, their construction and mode of operation are or may be the same as those employed in commercial linotype machines, or as shown and described in the Kennedy Patent No. 1,105,667 before mentioned and to which reference may be had if desired.

Coming now to the present invention, it is devoted, as before stated, to improved means, applicable to the standard knife block, for retracting the knife slide B preparatory to the adjustment of the gauge member D in order to relieve the latter of the pressure of the spring B during its rotation. Such means, in the preferred embodiment illustrated (see Fig. 3), consist of a horizontal rock shaft- G j ournaled in the fulcrum pin C and an edgecam G fast to the inner end of said shaft and located in engaging relation to an antifriction roller B carried by the knife slide B. As the parts are thus arranged, when the shaft G is turned in a clockwise direction, the cam G is adapted to engage the roller B and retract the knife slide against the tension of the sprin B", and when turned in the opposite direction, the cam is adapted gradually to release the slide and allow the hardened stud Pf thereof to bank against an opposing screw stud D in the gauge member D.

The turning of the rock shaft G is effected by an auxiliary hand lever Gr secured to the outer end thereof and located adjacent the adjusting hand lever E, from which it is spaced by a collar G mounted on the fulcrum stud C The hand lever G as will be noted (see Figs. 1 and 2), is arranged to move in a vertical plane close to and parallel with the plane of movement of the hand lever E, the lever G being shaped to conform to the lever E so that when it is swung forwardly to the position indicated by the dotted lines in Fig. 1, it will lie snugly alongside the lever E and thus permit both of said levers to be conveniently grasped and operated by one hand, whether the left or the right, as the operator may prefer. Normally, however. the lever G is sustained in a neutral or inac tive position at the rear (see the full lines graduation on the scale D in Fig.1) by a spring clipor latch Gfl-which porti n Of the frame is secured to the lower C andformed with'a resilient projection G the latterbeingdisposed in the path of the lever G making and breaking the connection therewith.

It will now be seen that by swinging the auxiliary hand lever G forwardly from its inactive position, the cam G will be turned into engagement with the roller B and, b

the time the hand lever is brought alongside of the main adjusting hand lever E, the knife slide B will have been retracted by the cam far enough to clear the studs D during the rotation of the gauge member D. The two hand levers E and G are then gripped firmly together and the rocking lever E pressedinwardly toward the lever E against the tension of the spring E to withdraw the pins E and unlock the gauge member D. All three levers (gripped in one hand) may now be moved together in effecting the desired adjustment of the knives, thecam G acting by its rotation with the gauge member D to sustain the knife slide B out-of contactwith the screw studs D during the adjustment. When the selected mark (Z on theframe, the hand levers are released andthe pins E allowed to relock the gauge member in itsnewly adjusted position.

The'auxiliary hand lever G yshould now be swung, independently of the main hand le ver E, toward the rear into engagement with the clip G in order to free the knife slide B and allow it to move under the tension of the.

springs B against the particular screw stud D which has been brought by the ad ustment into horizontal alignment with the hardened stud B. A spring could be used for l the return of the hand lever G but to sim-' mg leverE, if

from the perforated plates F and C and means for relieving the gauge preparatory to its ad usteffected.

plify the constructiomit'has been purposely omitted. Finally, after first moving the stop dog E from beneath the lever E the adj ustdesired, may be disengaged shifted to an out-of-the way position.

Having thus described my invention, what I claim is: i 1. In a slug trimming mechanism, the combination of a knife slide, an adjustable gauge 'member, means'for ad usting said member, locking means for the gauge member carried by the adjusting means, a spring for holding the knife slide in engagement with'the gauge member, and means adapted to be operated independently of the adjusting and locking spring pressure ment but operable con ointly w1th the ad'- j usting means to maintain the knife retracted as the adjustment of the gage member is 2. In a slug trimming mechanism, the combination of a rotary adjustable gauge memgauge member,

and adapted to yield laterally in registers with the adjusted positions,

member of ber, a retractable knife gaged therewith, means for adjusting the means carried by the adjusting means for operated independently of the adjusting and j the knife slide preparatory to the adjustment of the gauge member but operable conjointly with the :a'djusting means to mainslide resiliently en locking thegauge member in 1ts different adjusted positions, and meansadapted to be locking. means for retracting:

tain the knife retracted as theadjustment of the gage member is effected.

pendently of the adjusting and lockingmeans for rotating the cam beforefand after the adjustment of the gaugemember.

4;, In a; slug trimming mechanism, the com binationof anadjustable gauge member, a retractable knife slide resiliently engaged therewith, a hand lever foradjusting the gaugemember, means carried by said lever for locking the-gauge member in its different a cam for retracting the knife slide, and a adjustment of the. gauge member.

5. In a slug trimming mechanism, the com-u bination of a rotary adjustable gauge member, a retractable knife slide resiliently enan adjustable gauge member, a

:separate auxiliary handi lever for rotatlng the cam preparatory to the.

'ieo

gaged therewith, a hand lever for adjusting the gauge member, means carried bytlie hand levernfor locking the gauge member in its different adjusted positions, and means operable independently of ,the hand lever for retracting said slide preparatory tothe. adjustment of the rotarygauge member.

6. In a slug trimming mechanism, the combination of an adjustable gauge member,.a retractable knife slide resiliently engaged therewith, a handulever for adjusting the gauge member,';means carried by the lever] member in its different adforlocking said justed positions, a cam for retracting the knife slide preparatory to the adjustment of anda separate auxiliary the gauge member,

hand lever mounted to turn'on the axis of l i i the gauge memberand movable toward the,

other lever in operating the cam.

. 7. In a slug trimming mechanism, the

combination of arotary adjustable, gauge member, a retractable engaged therewith, a hand lever for effecting the adjustment ofthe i carried by the lever for locking said member in its different adjusted positions a fulcrum pin wliereon the auge member is rotatably mounted, a rock shaft journaled in said pin,"

knife slide resiliently gauge member, means.

a cam secured to the rock shaft and adapted by a partial rotation of the latter in opposite directions to retract and release the knife slide, and a separate auxiliary hand lever for rotating said cam shaft.

8. In a slug trimming mechanism, the combination of a rotary adjustable gauge memher, a retractable knife slide resiliently engaged therewith, a shiftable hand lever for rotating the gauge member and movable at will from its shifted positions without disturbing said member, means carried by said lever for locking the gauge member in its different adjusted positions, and means for retracting the knife slide preparatory to the rotation of the gauge member.

9. In a slug trin'nning mechanism, the coin bination of a adjustable gauge member, a retractable knife slide resiliently engaged therewith, a shiftable hand lever for adjusting the gauge member and movable at will from its shifted positions Without disturbing said member, means carried by said lever for locking the gauge member in its different adjusted positions, a rotatable cam for retracting the knife slide, and means operable independently of the hand lever for rotating the cam preparatory to the adjustments of the gauge member.

10; In a slug trimming mechanism, the combination of a rotary adjustable gauge member, a retractable knife slide resiliently engaged therewith, a hand lever for adjusting the gauge member, means carried by said lever for locking the gauge member in its different adjusted positions, a rotatable cam for retracting the knife slide, and a separate auxiliary hand lever for rotating the cam, said auxiliary lever being operable independently of the other lever to retract the knife slide preparatory to the adjustment of the gauge member but operable conjointly therewith to maintain the knife slide retracted as the adjustment. of the gauge memher is effected.

11. In a slug trimming mechanism, the combination of a rotary adjustable gauge member, a retractable knife slide resiliently engaged therewith, means for retracting the knife slide, and a pair of hand levers mounted to turn about the rotary axis of the gauge member, said lever being movable, first, one relatively to the other to retract the knife slide, and then conjointly to effect the adustment of the gauge member.

12. In a slug trimming mechanism, the combination of a rotary adjustable gauge member, a retractable knife slide resiliently engaged therewith, means for retracting the knife slide, and a pair of hand levers mounted to turn about the axis of the gauge member and arranged to move in closely adjacent parallel planes, one lever being movable relatively to the other lever into a position alongside the same to retract the knife slide, and

the two levers then being movable together ,Jn efiecting the adjustment of the gauge mem- In testimony whereof, this specification has been duly signed by:

ALFRED W. F. GUEST.

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