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Nov. 5, 1946. . J. WEST ET AL 2,410,559 PRINTER-‘S LINEUP TABLE ’ Original ' Filed May 22,‘~ 1e42_ 3 Sheets-Sheet 1 Nov. 5, 1946. J. WEST ET AL I PRINTER"S ‘ Original LINEUP 2,410,559 TABLE May 22, . I > 3 sheiets_sheet 2 5 Nov. 5, 1946. J. WEST ET AL 2,410,559 PRINTER’S LINEUP TABLE Original Filed May 22, 1942 3 Sheets-Sheet 3 Patented Nov. 5, 1946 2,410,559 ' UNITED STATES’ PATENT OFFICE‘ PRINTER’S LINE -UP TABLE James West, Newton, and William M. Davis, Cambridge, Mass, assignors to Craftsman Line-Up Table Corporation, Waltham, Mass, a corporation of >Massachusetts. ' Original application May '22, 1942,, Serial No. 444,008, now Patent No. 2,399,610, dated April 30, 1946. Divided and this application August 17, 1943, Serial No. 498,966 3 Claims. ' (01. 33-4845)‘ 1 2 This invention relates to that class of appa carriage can be moved backward and ‘forward ratus used chiefly in the printing trade and com on the tracks or racks |2-—l'2; Both the car monly known as “line-up-tables.” They are de riage and the straight edge span a table top 4 signed primarily for the purpose of facilitating which customarily is‘ made of transparent mate accuracy in the line-up of the work and precision 6 rial and is supported ?rmly on the. frame of‘the register of the copy, although they also ?nd addi machine. Scales 6 and 1, Fig. 1, are associated tional uses, particularly in marking or lining ‘the with the table top and another scale 8 lies beside work, scoring negatives and the like. The present invention aims to improve tables the left-hand rack IZ'. ' ' .- ' So far as the features above described are con of this character with a. view to facilitating the 10 cerned, the construction is not essentially differ matter of adjusting the straight edge with ex ent from that in the‘ commercial Craftsman table treme accuracy, positioning it for operation on above referred to. ' ' I ' work of different thicknesses, and making these One of the objects of this invention is to pro adjustments rapidly but still with precision. vide means for facilitating the quick adjustment The nature of the invention will be readily un 15 of the straight edge I‘! while still making such derstood from the following description when read adjustment with an exceptionally high degree in connection with the accompanying drawings, and the novel features will be particularly point ed out in the appended claims. In the drawings, - of accuracy. For this purpose a counter-shaft 20 is mounted above the carriage shaft III in bear ings 2| and 22, supported in one of said housings, , 20 and it carries a pinion 23 meshing with the gear Figure 1 is a plan View of a portion of aline up table including features embodying the pres ent invention; Fig. 2 is an end view of the carriage and ad jacent parts; It. A knob 24 secured to the end of section b of the shaft 20 provides a convenient means for turning it, thus rotating the gear I3v at a very‘ slow rate and so producing a ‘correspond ; ingly gradual adjustment of the carriage along Figs. 3 and 4 are vertical and horizontal sec- ‘ tional Views taken, respectively, on the lines 3—3 and 4—4 of Fig. 2; Fig. 5 is a vertical, sectional'view on the line the racks l2. . In order to eliminate any back lash in ‘the con nections between the knob 24 and the gear IS, the pinion 23 is split or divided on a radialv plane into two sections and the shaft 20 is made in Fig. 6 is a side view similar to Fig. 2‘ but on a larger scale and with some parts eliminated or corresponding sections indicated at a and I), re spectively, Fig. 3. Each of the shaft sections is broken away in order better to illustrate details integral with one of the pinion sections and one of construction; and shaft section telescopes within the other, as ' Fig. 7 is a sectional view through the shaft for lifting the straight edge and illustrating the cam clearly shown ’ in‘ the drawings. At the right hand end of‘ the ‘shaft of the section‘b it is slot provided for this purpose. _ ted to receive one end of a torsion spring 25,, the Referring ?rst to Figs. 1 and‘ 2, the table there other end of which is anchored in the knob 25. shown is similar in construction to that illus This spring is inserted under tension'so that it trated in our earlier Patent No. 2,252,535, except 40 tends constantly to rotate one of the pinion sec that the tracks on which the two carriages arev tions relatively to the other and the force so eX mounted are arranged in the manner used in erted is sufficiently great to prevent any back ’ the well known Craftsman line-up table.‘ Only lash in the engagement of the pinion 23 with the one carriage is here shown comprising a shaft it gear I3. having gears secured to its opposite ends to run It is desirable to be able to set the adjusting on the racks [2-92, One of these gears is shown mechanism at a zero position for a major grad in Fig. 2 at 13. They are enclosed in housings nation on the scale 8 and to provide means for Ill-14 and thehousings areconnected by a sleeve measuring or indicating the degree of adjustment 15 which encircles the shaft I0. Also, the hous of the straight edge from such major graduation ings are provided with integral extensions on on a considerably larger scale than is a?orded which brackets lt—-I6 are supported, the straight by the scale 8 itself. For this purpose a grad; edge I‘! being secured rigidly to the lower sides uated Vernier disk 25 is mounted on the shaft of these brackets. At its left-hand end, Figs; 1 and 3, the shaft H) has a knob or hand wheel i8. secured thereto so that by turning this knob. the. 20 for rotation therearound and it is provided with a tapered face 0, Fig. 3, to. engage the cor respondingly tapered surface ‘of a disk 2'! ‘keyed ¥ . 2,410,559 3 4 to the outer member a of the shaft 20. These two disks 26 and 2'! thus constitute a friction Also formed in the part 34 is an arcuate slot 3'! curved about the axis of the shaft 3| and a thread clutch and a knob 28 is threaded on to the shank ed stud 38, anchored in the part 38, projects of the knob 24 where it will back up the disk 26 through this slot. A nut 40 threaded on it and and will serve ‘to clamp it to :its'cooperating "Ji provided with a handle 41 serves to clamp the clutch disk 2‘! or to release it for adjustment rela part 34, and consequently the bracket (6, to the tively thereto, as desired. > adjacent portion 36 of the carriage. The same Assuming that it is desirable to make, vadjust- " construction is provided at the opposite end of ments of the straight edge toward or from a major the carriage, as shown in Fig. 1. graduation, or any other selected point - on the 1O scale, as for example the graduation 24 on the: scale 8, as shown in Fig. 1, the straight edge is ?rst adjusted to that point, the adjustment being A typical use of this adjustment occurs in set ting the straight edge initially to a new piece of work, say a negative. The operator loosens the nuts 40—1i? at opposite ends of the straight read through the magnifying lens 30, Fig. 1, which edge and turns the knob or handle 32 to lower is secured to the 'carriage‘and overlies the scale 15 said straight edge into direct contact with the 8. Then the graduated Vernier disk 26- can be Work piece. Itautomatically adjusts itself to a released from the shaft 20 by backing up the flat position on the work moving around the axis knob 28, after which the Vernier disk )may be of the shaft 31 for this purpose. The operator set in its zero, position where its zero mark reg then locks the straight edge in this position by isters with the ?xed "match” mark or base mark 20 tightening the nuts 49—4B. Thereafter whenhe on the housing M, as shown in Fig. 1. The knob Wishes to move the straight edge over the surface next is tightened up and thereafter adjustments of the work he lifts it by means of the handle of the straight edge can be made from this major or knob 32, and lowers it again when it is in the graduation and can be read on the disk 26 in proper position. A spring pressed plunger 4! , Fig. thousandths of an inch, or in whatever units of 25 6, is mounted in the carriage member 35 where it measurement the Vernier disk is graduated. will bear on a part of the frame when the straight This is an important advantage in connection edge is lowered and act as a shock absorber. An with certain kinds of printing and it is of ad other plunger is'sirnilarly located at the opposite vantage also in enabling a .workman to re-set the end of the straight edge. straight edge to a given position after the adjust 30 This ‘application is a division of applicants’ ment has been lost for any reason. earlier application Ser. No. 444,008, ?led May 22, In line-up tables designed for some purposes, 1942, now matured into Patent No. 2,399,610, it is customary to mount the table top:so that dated April 30, 1946. The claims in the present it can be vertically adjusted toward or from the case are limited to the mechanism for adjusting path of travel of the straight edges. While such the straight edge in a direction at right angles adjustment is extremely important for some to itself and in a plane generally parallel to the classes of work, the range of adjustment so pro table top, while the claims in the parent, case vided is not required forothers. At the same cover other features of the invention, particular time there usually must be some provision for ly those relating to the‘ adjustment of the straight accommodating variations in the thickness of- the 40 Edge toward or from the upper surface of' the a e. ' paper, negatives, or other article of work. It is one of the objects of this invention to provide While we have herein shown and described a for such adjustment of the straight edge toward preferred embodiment of our invention, it will be and from the table top and thus to avoid the evident that the invention is susceptible of em— much larger expense of making the table top 45 bodiment in other forms without departing from adjustable. the spirit or scope thereof. To this end a shaft or rod 3! extends across ' 1 ' Having thus described our invention, what we the machine through the brackets l6—l 6 to which the straight edge I1 is secured, and it is equipped desire to claim as new is: with a handle 32 by means of which it may be top, a carriage mounted for movement across said top, a straight edge mounted on said carriage, 1. A line-up table structure comprising a table rotated. A cam 33, best shown in Figs. 4 and '7, is formed integral with the knob 32 and is se said straight edge extending across the working cured fast on the shaft 3!, this cam resting on area of said table. top and said carriage support a ?at surface at the edge of the table so that by ing it for movement in a plane parallel with and rotating the knob any one of its four faces at, e, f 55 close to said table top, racks at opposite sides of or 9 may be brought into position to support the the‘table top, supporting means for said car shaft at a spaced distance above said surfaces. ‘ riage including a gear running on each rack, and The same cam construction is secured on the op means for facilitating quick adjustment of said posite end of the shaft 3!, as shown in Fig. 1 straight edge comprising a countershaft includ at 33' so that both are operated in unison. Since 60 ing an inner shaft and an outer shaft sleeved on the cam faces are spaced at different radial dis said inner shaft, each of said shafts having a ‘ tances from the shaft, this arrangement provides pinion on the adjacent ends of said shafts, said for the adjustment of the straight edge into four pinions meshingwith one of said gears, a housing different elevations. This adjustment rocks the supported by one of said gears, bearings in said carriage about the axis of the shaft IE3. ‘ 65 housing for said shafts, said pinions being In addition to this provision for making a height adjustment, means also is provided for adjusting mounted between said bearings, a ?rst knob on thestrai'ght edge relatively to the carriage. Re spring connecting said knob to said inner shaft acting with said pinions to prevent back-lash, a ferring to Figs. 4, 5 and 6, it will be seen that the opposite end of said outer shaft, a tension the left-hand bracket IB, Fig. 1, is provided with 70 disk on said outer shaft having a taper face, a an upright plate-like member 34 having a iat second disk on said outer shaft having a taper erally extending arcuate rib 35 curved. about the face shaped to engage said ?rst taper face, said axis of the shaft 3| and ?tting slidably in a cor faces forming a friction clutch, said ?rst knob respondingly shaped groove formed in an upright having a shank, a second knob threaded on said abutting face of a portion 36 of the carriage; 75 shank and adapted to engage said ?rst named 2,410,559 6 5 disk wherebyto cause said friction faces to engage each other, said first named disk, said second disk and second knob being located between one of said bearings and said ?rst knob. 2. A line-up table structure comprising a table top, a carriage mounted for movement across said top, a straight edge mounted on said ‘carriage, said straight edge extending across the working area of said table top and said carriage support ing it for movement in a plane parallel with and 10 close to said table top, racks at opposite sides of the table top, supporting means for said carriage‘ including a gear running on each rack, and means for facilitating quick adjustment of said straight edge comprising a countershaft including an in top, a carriage mounted for movement across said top, a straight edge mounted on said carriage, said straight edge extending across the working area of said table top and said carriage support ing it for movement in a plane parallel with and close to said table top, racks at opposite sides of the table top, supporting means for said car riage including a gear running on each rack, and means for facilitating quick adjustment of said straight edge comprising a countershaft includ ing an inner shaft and an outer shaft sleeved on said inner shaft, each of said shafts having a pinion onv the adjacent ends of said shafts, said pinions meshing with one of said gears, a housing 15 supported by one of said gears, hearings in said ner shaft and an outer shaft sleeved on said inner housing for said shafts, said pinions being shaft, each of said shafts having a pinion on the mounted between said bearings, a ?rst knob on adjacent ends of said shafts, said pinions mesh the opposite end of said outer shaft, a tension ing with one of said gears, a housing supported spring connecting said knob to said inner shaft by one of said gears, bearings in said housing for 20 acting with said pinions to prevent back-lash, a said shafts, said pinions being mounted between Vernier disk on saidlouter shaft having a taper said bearings, a ?rst knob on the opposite end of face, a second disk on said outer shaft having a said outer shaft, a tension spring connecting said taper face adapted to engage said ?rst taper face, knob to said inner shaft acting with said pinions said faces forming a friction clutch, said ?rst to prevent back-lash, a disk on said outer shaft 25 knob having a shank, a second knob threaded on having a taper face, a second disk on said outer said shank and adapted to engage said Vernier shaft having a taper face shaped to engage said disk whereby to cause said friction faces to en ?rst taper face, said faces forming a friction gage each other, said vernier disk, said second clutch, said ?rst knob having a shank, a second disk and second knob being located between one knob threaded on said shank and adapted to en 30 of said bearings and said ?rst knob, said carriage gage said ?rst named disk whereby to cause said supporting means further including a carriage friction faces to engage each other, said first shaft extending across said table top and mount named disk, said second disk and said knob be ing said gears, and a hand wheel mounted on ing located between one of said bearings and one of said gears, said countershaft being held said ?rst knob, said carriage supporting means 35 by said bearings in vertical alignment with said further including a carriage shaft extending carriage supporting shaft. across said table top and mounting said gears, JAMES WEST. and a hand wheel mounted on one of said gears. 3. A line-up table structure comprising a table WM. M. DAVIS.