US1755468A - Cutter - Google Patents

Description

E. CHESHIRE April'fzz, 1930..

CUTTER Filed May 18, 1925 2 Sheets-Sheet 1 Edward lies/zar@ April 22, 1930. 5. cHEsHll-z 1,755,468

n CUTTER 2 Sheets-Sheet 2 Filed May 18, 1925 l instrument Patented Apr. 22, 1930 UNITED STATES EDWARD oHnsHIRE, oF sT. PETERSBURG, FLORIDA CUTTER.

Application filed May 18, 1.925. SeriaI No. 30,898.

The present invention relates to cutters. 4

More particularly the present invention relates to cutting mechanism suitable for use in composing rooms for cutting slugs, leads, rules and the like. It has for one of its objects the provision ofV which said articles may be expeditiously andaccurately cut.

A further V object is to provide a` convenient for accurately and expeditiously cutting material, said instrument including abutment means for the material to be cut, which may be positioned on either side of the cutting blade.'

A further object -is to provide cutting mechanism of simple construction which will meet the requirements of commercial use.y

A further object is to provide a4 cutting mechanisml of the character described with an improved to measure with-ease and accuracy, the material to be cut. Y

Further objects will appear as the description proceeds.

Referringr to the drawings- Figure l is a top plan vien7 of a cutter embodying the principles of the present invention;

Figure 2 is a view in side elevation, partly in section, of the structure shown in Figure 1; y

Figure 3 is a sectionallview taken along the plane indicated by the arrows 3-3 of Figure 2' Figure Avis a sectional view taken along the planes indicated by the arrows 4l-1l of Figure l;

Figure 5 is a sectionalview taken along the plane indicated bythe arrows 5--5 of Figure l; andY Y f Figure is a sectional view taken along the plane indicated by the arrows 6-6 of Figure 4. v

The present invention contemplates the provision of elongated holdingmeans whichof a structure by` meansl -dinally of said holding track.

gauge which may be employedv in this specification will be referred to as a holding track. A cutter block is located intermediate of the length of said holding track. A micrometer gauge is provided which is.v removably connected to` Saidvholding track, said micrometer gauge beingv provided with a stud or studs adapted' to iit within equally spacedv holes arranged longitu'h Said removable O'auge may be located on either side of the cutter block, n cut may be presentedto the lcutter block from either the right or left hand' side of the operator. A y f The numeral l indicates theholding member or holding track above referred' to. Said holding track will ordinarily be horizontally positioned, and may have any convenientl form of base 2. Said track is transversely slotted, intermediate oitsliength,as-indicated by the numeral 3. lB'oltevd tothe base 2 is the .casting A, which provides a pivotalv mounting means for the cutter block and operating lever therefor tobe referred to hereinafter. A chute 5 communicates with said .base 2. l,

The. holding track l is provided with a lonjgitudinally extending groove 6v havingthe side walls 7 and 8. The wall 8 presentsl a substantially vertical y flat horizontal surface l0 of the holding track l provides. a recess for slidably receiving ma terial to be cut. A scale l1 isset into the track l in aI manner to be .iiush' with the surface 10. Said scale'll is in two parts, kila and 11b, located onthe two sides ofgthe slot 3.l

The casting A is providedjadjacent to the slot 3 with an upstanding projection'12 pro-V viding a lbearing for the cutter block or blade holder 13. Said upstanding projection l2 also provides a* bearing for the operating lever 1A pivvote'd as 1shown in Figurej3. A link l5 is mounted between the `roperating lever' 14' and the cutter block` 13, whereby shearing movement'may' be communicated to whereby the material to b e l vthe slot 3. of

surface 9 which with the` the cutter block 13 when the lever 14 is swung downwardly. The cutter block 13 is held in uppermost Y position by means of the coil spring 16, which has one of its ends connected to said cutter block 13 and the other of its ends connected to the projection 12. The cutter block 13 is formed with the shoulders 17 and 18, which provide limiting stops for engagement by the lug 19 forming part of the operating lever 14. rlhe shoulder 18, by reason of its engagement with the lug 19, limits the upward movement of the operating lever 14 and consequently limits the upward movement of the cutter blocl: 13.

The shoulder 17, by reason vof its engagement with the lug 19, limits the downward movement of the lever 14 and cutter block 13.

The cutter bloclt 13 is formed to receive a blade 20, which blade may be of general rectangular form,'as shown in Figure 3. Said blade may be held in place by `means of the screws 21-21 extending through suitable holes in said blade. Preferably said blade will have cutting edges onv two of its long sides, whereby the blade may be reversed after one cutting edge becomes dulled through use. rlhe blade cooperates with the blade 22 which is iXedly mounted upon the holding member 4, in proximity to the slot 3 and chute 5. The blade 22 may also be doubleedged and is removably held in place by means of the screws 23. lt will be clear that when the operating lever 14 is swung downwardly the blade 2O will be moved into shear-V with the blade 22 and small cuttings from material located upon the holding track 1 will fall into the chute 5, whence they may be discharged from the cutting device. y

The numeral 24 indicates as a whole a micrometer gauge, and the present invention contemplates the provision of mechanism whereby said micrometer' gauge 24 may be positioned at either end of 1 for gauging material to be treated by the cutting blades 20 and 22. rlhe holding gauge 24 is a two part device including the nut portion 25 andthe abutmentv portion 26, said portions 25 and 26 having downwardly extending relationship ing tongues slidably mounted in the groove 6.

Said nut portion 25 is provided with a downwardly extending stud 27, which may be held in place by means of the setscrew 28. rlhe downwardly extending stud 27 is shaped to fit snugly into any one of the plurality of equally spaced holes 29-29, which holes are disposed along the holding track 1, preferably in the bottom wall of the groove 6. Said holes 29--29 provide abutments for positioning said gauge 24. i

rl"he nut portion 25 of the micrometer gauge 24 is of U-shaped longitudinal cross section, the sides or upstanding arms of which are indicated by the numerals 30 and 31. Located between the sides 30 and 31 of the nutthe holding track portion 25 is the nut 32, having threaded engagement with the screw-threaded shaft 33. rllhe nut 32 should have a smooth running fit with the two sides 30 and 31 of the nut portion 25. The side portion 30 is provided with the detent 34, urged into engagement with the nut 32 by the spring 35, a setscrew 35a being provided for holding the spring 35 and detent 34 in position. Said detent 34 will hold the nut releasably in adjusted position. rlhe nut 32 has the graduated micrometer scale 36 adapted to cooperate with an index 37 mounted upon the side 31 of the nut portion 25. rljhe screw-threaded shaft has a running lit within aligned apertures in the sides 30 and 31 of the nut portion 25, the walls of said apertures 36-36 bearing on the exterior of said screw-threaded shaft 33. The screw-threaded shaft 33 has an end bearing in the abutment portion 26 of the has a reduced end portion 33 located within an aperture in said portion 26. A screw driver slot 33 is provided at the other end of shaft 33. A setmicrometer gauge 24 and screw 39 is illustrated'for preventing turner.

ing movement of the screw-threaded shaft relative to the abutment portion 26. Said abutment portion 26 is provided with the longitudinally extending studs 40-40 adapted to abut and gauge material to be treated by the cutting blades 20 and 22.

The portions 11a and 11b of the graduated scale 11 have their zero Vmarks equally spaced fromV the shearing plane of the blades 2O and 22, lwhereby the micrometer gauge may be used without readjustment at either side of the cutter block 13. lt will be convenient, as a general proposition, to have the micrometer gauge at the left end of the holding track 1, so that the operator may hold the material to be treated with his left hand, having one eX- tremity thereof located in abutting relationship with the studs 40-40 of the micrometer gauge 24. 'vfhile using his left hand to hold the material to be treated, move the operating lever 14 and consequently trie blade 2O with his right hand to perform the cutting operation. Y

.W hen it is desired to make a large number of relatively small cuttings, it is of decided im;

advantage to have the micrometer gauge 24 at the right hand end of the cutter. Under these conditions the material to be operated upon will be fed in from the left hand side of the cutting blades 2O and 22, being positioned in abutting relationship with the extremities of the studs 40-40. Figure 2 shows the micrometer gauge in broken lines in position for such an operation. Under these conditions shearing operations maybe performed in li;4

rapid succession, the material operated upon being quickly Vfed to the blades after each shearing strol-e. Under these conditions a large number of relatively may be rapidly made.

the operator may f small cuttings The studs 40`40 are of equal overall length, and said length should be exactly equal to the distance between the zero marks of the scales 1la and llb and the shearing plane of the cutting blades 20 and 22. The studs fr0- 40 are held fast in member 26 in positions such that they are symmetrically placed relative to said member 26. The rear extremities 4l`4l of said studs 40-40 are shaped to form indexes cooperating with the scale members l1a or 1lb. The readings indicating the length of cut are made at the extremities .Ll-4l of the studs t0-40.

It will be clear that the micrometer gauge illustrated provides a very accurate and readily operable means for positioning material to be treated, whether said micrometer gauge is used at the right hand end or the left hand end of the cutter. By turning the nut 32, relative movement nut portion 25 and the abutment portion 26, inasmuch as the abutment portion 26 is nonrotatably connected to the screw-threaded shaft 33. Accurate positioning of the abutment portion 26 and the studs lO-iO is therefore possible. The zero reading on the scale 36 should, of course, correspond with the main divisions of the portions 1la and 1lb of the scale 1l. In order to bring said scales into coincidence, or, in other words, to set the zero reading of the scale 36, the setscrevv 39 may be loosened and the screw-threaded shaft 33 may be turned while the nut 32 is held against turning movement, zero onV the scale being held in coincidence with the index 37. This turning movement of the shaft 33 will be continued until the extremity 4l of one of the studs 40%() corresponds with the zero mark of the scale lla or 11b, after which the setscrew 39 will be turned into holding relationship with the screw-threaded shaft 33.

rIhough a preferred embodiment of the present invention has been described in detail, it will be clear that many modifications will occur to those skilled in the art. It is intended to cover all such modifications that fall within the scope of the appended claims.

What is claimed is l. In a cutter, means for supporting material to be treated, a movable cutting blade disposed intermediate of the length of said supporting means, a readily` removable micrometer gauge, and uniformly spaced abutments on said supporting means at the two f sides of said cutting blade for removably positioning said micrometer gauge at either side ef said cutting blade.

2. In a cutter, means for slidably supporting material to be cut, a cutter blade located intermediate of the length of said positioning means, said positioning means being provided with a plurality of uniformly spaced' holes, and a micrometer gauge having abutment means for location in any of said holes,

said gauge being reversible on the two sides will be had between the of; said-:cutting 'blad-e, whereby. toA fo'rm an abutment on either'side, of said cutterk blade. 3. In a cutter, elongated means for supporting material mounted intermediate of the length of said supporting means, a readily removable micrometer gaugefcarried by said supporting means, said micrometer gauge being reversi.- ble,'and uniformly spaced means on .the two Sides of saidcutter blade for positioning said. micrometer gauge.

a cutter, elongated means for supporting material to be cut, a movable blade mounted intermediate ofthe length of said supporting means, a readily removable micrometer gauge carried by said supporting means, said micrometer gauge being reversible, and uniformly spaced means on the two sides of said cutter blade for positioning said micrometer gauge, said supporting means being provided with a divided scale having markings uniformly and symmetrically spaced from the shearing plane of said blade, whereby said micrometer gauge may be used selectively without readjustment at either side of said cutter blade.

5.In a cutter, elongated means for supporting material to be cut, a movable blade mounted intermediate of the length of said supporting means, a readily removable micrometer gauge carried by said supportin means, said micrometer gauge being reverslble, and uniformly spaced means on the two sides of said cutter blade for positioning said micrometer gauge, said supporting means being provided with a divided scale having markings uniformly and symmetrically spaced from the shearing plane of said blade, whereby said micrometer gauge may be used selectively without readjustment at either v side of said cutter blade, said micrometer gauge having means for adjusting its zero to be cut, a movable blade4 position to coincide with the divisions of said scale.

6. In a cutter, a frame providing a supporting means for slidably supporting material to be operated upon, a cutter block, said frame having means for pivotally supporting said cut-ter block, a lever frame foroperating said cutter block, a reversible gauge, said frame being provided with a plurality of abutment means uniformly spaced from the cutting plane of said block for releasably holding said gauge on either side of said cutter block, scales on the two sides of said cutter block and symmetrically disposed relative to the cutting plane of said cutter block, said gauge being a micrometer gauge and having means for conveniently adjusting the zero setting thereof to correspond supported by said or ud a reversible blade carried by said frame at said vs1ot,'a'outter block having a reversible blade for cooperating with said irst mentioned blade, means for operating said cutter block, a gauge, said frame having spaced abutment means uniformly spaced upon the two sides of the shearing plane of said blades for releasably positioning said gauge, where by the abutment face of `said gauge may be positioned selectively at either side of said Cutting plane.

Signed at E. Cleveland, Ohio, this 9th day of May, 1925.

EDWARD CHESHIRE.

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