US2367198A - Line of type universal surfacing machine - Google Patents

Description

Jan. 16, .1945. R. c. cAsHoN 2,357,198 LINE OF TYPE UNIVERSAL SURFACING MACHINE Filed April 15, 1941 r 2 Sheets-Sheet -l 1 7 INVENTOR.

' ffir/M/m 6. (ZS/mm Patented Jan. 16, 1945 to PATENT, O'FFlC-E IVERSAL SURFACI-NG MAGHINE Raymond C. Oa shon, Indianapolis, Ind.

Applicationa April '..15

6 Claims.

This. invention relates" to -apparatus for surfacing type usually cast in agline or the like.

Thechief'object of this invention istoprovide ---a'machine for :surfacing the 'printingface of type "castin line'formso'thatthe printing face of the type with respecttof the base' may have any "predetermined height andwill on its printing face "provide a-sharpness of printing impression, in "other-' Words,= a='fine, sharp outline, as well-as a "mirror-finish'so'that such type, usually of line "form and of any desi redlength -can be finished so that it-is-of-any desired'height and can print "satisfactorilyon any 'hig-hlyismooth paper, such as a highly *calend'ered "paper-With the same facility-and clarity of impression as is obtained on "rougher'papers.

Another object of the invention is to "provide 'a machine for finishing "type ofthe aforesaid character so that recastingof the type is not "necessary. f-Furthermoreytype so-finished avoids a considerable portion of the make-ready operations.

The chief feature of the present-invention isto provide a' machine which 1 can accommodate any reasonable length of line of type-and cut the same 7 to any desired height within the range "of the machine capacity and which line of type may be .of. any desired width and which,.'in operation, "will sharpen the outline of the printing face of the type andprovidea mirror finishon .su'ch printing. portions of said face; "'Theproper finish is obtained bypropercorrelation-v between the speed of travel of .a:- carriage mounting the .line -of typeand .thespeedof rotation .of a rotatable cutterfacing that ,type. i The device illustratedherein is capable. of handling type produced-by the-.following;machines, all of which :in general; :mayabemlassified as. line casting machines and all of which pasta; differ- 1 out linerslug. s.These-: :machines-1.areFcommQmy .called the -"Linotyrm, the IIntertype, B the Y. Ludlow lTypograph and: the Linograph. The 'len'gth'of the' lines of these *:machines "varies 1' :The

"- smaillest lineis from -l ems up. *The'longest'is- '7 I inches, or-42-ems. The height oftypethat is usually utilized is somewhere" about ".918 "but it imay" vary from.915 to2922. Thepresent machine "has aheight capacity Qfadjustment' from '.915to ".925. Itwillbe obvious, of course, thatthis range can-be..-.increase'd. l'lhe widthvofwtheline oftype, as.-.stated, may vary fromiaa-very. small width up -.to.2" :in width and theypresent machine. is. capvable of accommodating various" widths, various 1941.8erialNo. 388,653

(emu-16) v lengths, and cutting,to various.heightswithinthe range :of adjustments.

.Other objects and features of-the invention will he set forth more fully hereinafter.

ilhe full nature ofth e invention will :be undervstood from-the accompanying drawings, .the following description and claims: Fig. 1: is atop plan :view of the invention, the carriage being shown thereon and to the left .10 thereof.

iFig. 2,.is a vertical sectional -view takenon line ..2--. 2-of;Fig. 1 and in the direction of the arrows. Fig.: 3 is-a top plan view taken. on line;3.3 of Fig. 7 2 :and inthe direction of .the arrows and is illustrative of the -power portions :of the ma chine, :the carriage, cutter, type clamp and bed "portions of the machine I being omitted.

.Fig. :4 is an enlarged vertical sectional View through the cutting head,- the carriage,, the clamp and the bed of-- the machine.

- "Fig. 5 is-anenlarged side elevationalview of the selective controlfor carriage drive,-etc. :;In;the.-drawings Ill indicates one side portion of the bed of the machine, I ltheopposite one and s2 .these twoside portions maybe-suitably connected shown more clearly in Fig. '3 andindicated by the numeral -l-2. This suitablyiand detachablysup- "ports an-electric;motor 1,.3. This-motor is sup- 3 ,plied by currentjfrom line; Hhcontrolled-by switch l5- mounted-in the side H ofthebed of the ma- -chine.

The two vangle ;members l9 rand 32,0 and their vgrooved portions confront each-other. This forms :achannel that extends from one. end of the; ma-

chine to the other. The top portion- -of the bed I8 is. provided with an;elongated apertureil through which-depends a portion of the carriage: structure and adjacent which is 'rnountedthe 1 feed .screw. [The feed screw, see, -1iig.; i is indicated by the numeral 22. A nut 23;. is secured as at;24- to \thehase of the carriage structure 25 having the oppositely directed wings Z6 seatable in the grooves l9a and 20a of the confronting ,trackway arrangements.

;t0gether-near:their bottoms bythe; cross member The ends. I 0. and: H areconnected by: the front The nut structure 23 is apertured as at 21 and slides upon a rod 28 that extends parallel to the feed screw 22.

The machine may, if desired, be provided with rubber feet or the like, as indicated at 29.

The motor [3 includes the shaft 3| upon which.

is secured the gear 32 meshing with the pinion 33 carried by a vertical shaft 34, the latter being rotatably supported in the bracket 35 carried by the bed of the machine, said shaft 34 extending upwardly through an aperture I36 in the top l8 of the machine bed and through a similar aper ture 31 registering therewith and in the track member l9, see Fig. 4.

A transverse shaft 38 mounted in bearings 31a and 31b in the front l6. and back ll of the bed has suitably secured to it a gear 38, as at 39. Stop collars 49 properly position said shaft. The gear 38 meshes with the pinion 4| carried by the motor shaft 3|. Thus the shaft 36 is rotated at a materially less speed than shaft 3|.

The shaft 36 has secured to it a beveled pinion 42 meshing with a bevel gear 43 carried by a shaft 44 mounted in bearing 45 spaced from the side wall II. The shaft 44 extends toward said wall and is rotatably supported therein by a bearing indicated by the numeral 46.

Rigid with said shaft 44 is a gear 41. Rotatably supported by said shaft 44 is a feed change lever arrangement, see Fig. 5, indicated by the numeral 48. This lever is pivoted on said shaft 44 and extends outwardly through an elongated slot defined by a boss 49 on the front 16 of the machine and mounts on its exposed end a knob 50 or the like for manual engagement. The other end of said lever 48 provides spaced bearings and 52, mounting shafts 53 and 54 respectively carrying meshing idler gears 55 and 56 respectively, each being adapted for selective engagement to transmit .power from gear 41 to gear" 51, the former being on the power shaft 44 that always rotates in one direction and the other being mounted on the feed screw shaft portion 22a as shown in Fig. 1.

When the manual lever 48 is depressed in its slot to its lowermost position, the gear 55 is elevated and operatively connects gears 41 and 51 so that while shaft 44 rotates counter-clockwise gear 55 will rotate clockwise and gear 51 will rotate counter-clockwise. However, when the parts are shown in Fig. 5, neither gear 55 nor 56 is in mesh with the gear 51 and, consequently, the back gear arrangement and feed screw 22 will not be rotated even though the motor then be turning shaft 44. When, however, the lever 48 is elevated to its highest point in the slot, the gear 4'! drives the gear 55 in turn driving the gear 56, in the counter-clockwise direction, so that when gear 56 is in mesh with the gear 51, the gear 5! is rotated in a clockwise direction.

- Thus the rotation of the gear 51, when so connected to the gear 41. is in the same direction as gear 41. With this construction the said screw can be reversely rotated. Consequently, since this feed screw is operatively associated with the nut 23 carried by the carriage 25, the carriage 25 will be moved either to the right or to theleft or will remain stationary, depending upon the selective positioning of the parts shown more particularly in Fig. 5.

Reference will now be had to the automatic stopping device and the manual stopping device. As shown clearly in Figs. 1 to 4, rod 28 extends parallel to the feed screw 22. It m unts a collar 60, see Figs. 2 and 3, adjacent the end [0 of the bed. The rod is slidably supported in the end H] as indicated at 6| and projects beyond the same as indicated at 52, terminating in a head .portion 63. A spring 64 is concentric with the rod and bears at one end on the bearing 5| and on the opposite end onv head 53 and normally constrains rod 28 to the left.

Interposed between the end l0 and the collar 60 is the bifurcated portion 65 of a lever 66 piv oted at 61 and having the tail portion 58. The portion 23a of the nut 23 is extended so that in the movement of the carriage to the left, see Figs. 2 and 3, this portion 23a engages the free end. of the tail portion 68 of the bifurcated lever 65 to tilt the lever and cause the rod 28 to move to the right. This occurs before the nut attains the position where the body portion of the nut would engage stop collar fill.

When it is desired to stop the machine manually, all that is required is sufiicientpressure upon the knob 53 in opposition to the spring 54. The rod 28 then will be moved to the right and no movement of the bifurcated lever 66 occurs.

Movement of the rod 28 by reason of the projection 23a and tilting the bifurcated lever 65 is in opposition to spring 64. Extending parallel to the rod 28 and carried by the nut 23 is an extension 69, see Fig. 2. When the carriage is at or near the extreme right-hand end of its travel, this particular. portion is effective for securing cessation of carriage movement.

As shown clearly in Figs. 1 to 3 and Fig. 5,, each of the gears 55 and 55 is slidably supported on its stu-b shaft and is normally constrained toward face contact with the supporting end of the lever 48 by mean of a spring.

Herein, spring in normally constrains gear 55 to the left in Fig. 3 and spring H normally constrains gear 58 to the left in Fig. 1. It will be observed, see Fig. 2, that gears 57 and 4'! are in coplanar alignment and the gears 55 and 56 have similar alignment when released to the constraint of these springs. 28 or the projection 59 engages the gear in question of the intermediate gears 55 and 55, these are projected to the right and consequently power is not supplied by gear 4! to gear 5'1. Hence, carriage travel ceases. Thus, carriage movement, in either extreme direction near the end of that direction automatically causes cessation of further carriage movement in that direction. This in effect is a combination clutch and reversing drive arrangement.

Furthermore, since rod 28 is the one that is associated with gear 55, it is quite apparent that, even though gear 56 be the gear then in operative engagement with the gear 51, axial move ment of gear 55 will break the chain of power gear transmission. Thus, travel of the carriage to theright can be stopped at will through pressure applied to the head 53. Normally, rod 28 is operatively associated with gear 55 for causing cessation automatically of carriage movement toward the left. Projection 69 is associated with gear 55 for causing cessation of movement of the carriage to the right.

The carriage 25 includes an upwardly directed flange portion '32. This flange is coextensive with the base portion 25. Adjacent thereto and spaced therefrom is the flange 13'. The face 12a of flange 12 is perpendicular to the face 25a of the carriage base 25 which is parallel to the machined face of the top l8 to which the tracks [9 and 25 are secured. The parallel faces of the grooves When, however, the rod set screw to be loosened and tightened without removing the guard.

After the parts have been suitably adjusted, it wilibe quite apparent that the indicator 1 It! will indicate the: exact height of the type that the teeth I23 will cut and finish. With the carriage positioned to the left as shown in Fig. 1 the clamp lever 80 is operated to open the clamp structure and the previously cast type is properly affixed thereto. locked to rigidly hold the type in theclamp on the carriage. Handle 58 is dropped and gear 55 engages gear 41 to rotate it counter-clockwise. The switch I5 is then closed. The carriage moves to the right because screw 22 is a right-hand thread screw and the nut 23 moves to the right. see Figs. 1 and 2. Previously, through the indexing arrangement, the height of the cutter construction has been adjusted for the proper height of type. When the carriage passes beneath this cutting head sructure, the teeth I23 finish the face of the printing impression, provide a sharp outline on those formations and insure that the coplanar face of such impressions is parallel to the base of the type slug and at the proper distance from said base so that make-ready operations are materially reduced when the finished Slug is later applied to the form.

If one cutting operation is sufficient, when the carriage has moved to the right a sufficient amount the slug may be released. This operation occurs, of course, after carriage movement has ceased. Carriage movement will automatically cease when the carriage has travelled to the extreme right. If the type has not been properly finished, for example, it requires a plurality of cuts to reduce the type heightto the proper height at the end of the'travel of the carriage to the right, the control BI] is actuated to reverse the carriage travel and cutting is resumed in the reverse direction, it being understood that between these two directions of carriage travel the cutting teeth have been properly adjusted.

It is to be understood that not too much material can be handled at each cutting operation so I that care must be exerted not to crowd the tofore have required extreme care in the production of type and considerable make-ready operation. This machine, therefore, eliminates the requirement that several slugs of the same type be successively cast in orde'r to obtain a perfect" one.

This machine also has the advantage that it can accommodate any length of line of type up to and including 7 long, this being slightly larger than the largest line now being utilized. It can also accommodate type from .915 to .925 in height. It also can accommodate any width of type up to and including 2". With this invention, type casting with any of the type casting machines initially mentioned can be finished and such finish is of mirror-like quality, aswell The clamp is then released and as to face and height providing proper adjustment is observed.

It will also be readily apparent that the cutting head is not necessarily restricted to the utilization of 8 cutting teeth. When a lesser number of teeth are to be employed intermediate teeth may be removed. Certain types of work require a larger number of teeth than others. This is to insure that the amount of metal removed automatically clears itself, that is, does not accumulate and crowd the work so as to interfere with subsequent tooth cutting. The carriage is equipped with extensible guards, as shown in the Figure 2, so that as the carriage moves from right to left, the chips from the cutting operation do not fall through the opening 2| and fall upon or clog the mechanism within the bed structure.

While the invention has been illustrated and described in great detail in the foregoing description, the same is to be considered as illustrative and not restrictive in character.

The several modifications described herein, as well as others which will readily suggest themselves to persons skilled in this art, are all considered to be within the broad scope of the invention, reference being had to the appended claims.

The invention claimed is:

1. In a machine of the character described the combination of two parallel shafts, a gear on each shaft, said gears having coplanar alignment, a support tiltable upon the axis of one of the shafts, a pair of meshing gears rotatably supported by said support on axes parallel to the support supporting shaft and slidable longitudinally of the axes and normally constrained to coplanar alignment with the other gears, one of the pair of meshing gears, when so constrained meshing with one of the first mentioned gears, said one of the pair of gears and the other of said pair of meshing gears when so constrained having selective engagement with the other of said first mentioned gears or no engagement therewith depending upon the position of the tiltable support.

2. Ina machine of the character described, the combination of two parallel shafts, a gear on each shaft, said gears having coplanar alignment, a support tiltable upon the axis of one of the shafts, a pair of meshing gears rotatably supported by said support on axes parallel to the shaft and normally constrained to coplanar alignment with the other gears, one of the pair of meshing gears, when so constrained meshing with one of the first mentioned gears, said one of the pair of meshing gears and the other of said pair of meshing gears when so constrained having selective engagement with the other of said first mentioned gears or no engagement therewith, depending upon the position of the tiltable support, and means for shifting one of the constrained gears, in opposition to the constraint, from the coplanar alignment for the purpose described.

3. In a cast type surfacing machine having a bed with a way formation thereon, and a carriage movable thereon, the combination of a type clamping structure carried by'the carriage and movable therewith, said structure including an elongated abutment on the'carriage having a face parallel to the direction of carriage movement, a'clamping head having a similar directed confronting face, yielding means interposed be tween the head and carriage normally constraining the head toward face engagement, guide means interposed between the head and carriage insuring movement of the head transverse to its face, and manually operable means movstraining means and gravity constrained for holding the clamping head in type locking position.

4. In a cast type surfacing machine, a bed having a way formation, a carriage movable thereon, cutting means thereabove, and flexible chip guard means connected at opposite ends to opposite ends of the carriage for covering all carriage exposed portions of the way formation, the guard means passing across the machine beneath the way formation thereof.

5. In a machine for surfacing a line of cast type having a supporting bed and a work supporting structure supported thereby, the combination of a head structure supported by the bed, one of said structures being movable on the bed relative to the other structure, said head structure including a shaft directed toward the work structure, a cutting arrangement on the shaft end nearest the work structure, an arm on the head structure supporting the shaft intermediate its ends, means engaging the opposite end of the shaft for shaft rotation, means interposed between the shaft and arm for adjusting the cutting arrangementtoward and away from the work structure, guard means substantially surrounding the cutting arrangement, said guard means including an access portion therein, the cutting arrangement including a supporting member, and a plurality of cutting teeth detachably secured thereto, the guard means access portion being arranged to expose the detachable connection between a tooth and the tooth supporting member.

6. In a machine for surfacing a line of cast 1 type having a supporting bed and a work supporting structure supported thereby, the combination of a-head structure supported by the bed, one of said structures being movable on the bed relative to the otherstructure, said head structure including a shaft directed toward the work structure, a cutting arrangement on the shaft end nearest the work structure, an arm on the head structure supporting the shaft intermediate its ends, means engaging the opposite end of the shaft for shaft rotation, means interposed between the shaft and arm for adjusting the cutting arrangement toward and away from the work structure, guard means substantially surrounding the cutting arrangement, said guard means including an access portion therein, the cutting arrangement including a supporting member, a plurality of cutting teeth detachably secured thereto, the guard means access portion being arranged to expose the detachable connection between a tooth and the tooth supporting member, means for locking the arm and shaft interposed means in adjusted position, and a scale and indicator arrangement for visual indication of the adjusted position of the cutting arrangement.

RAYMOND C. CASI-ION.

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