US770805A - Attachment for band-saws. - Google Patents

Description

No. 770,805. PATENTED SEPT. 27, 1904. E. L. HAYDEN.

ATTACHMENT FOR BAND SAWS.

APPLICATION FILED NOV. 30, 1903.

N0 MODEL. 2 SHEETS-SHEET 1.

PATENTED SEPT, 27, 1904.

E. L. HAYDEN.

ATTACHMENT FOR BAND SAWS.

APPLICATION FILED Nov.3o,19o3.

2 SHEETS-SHEET 2.

N0 MODEL.

dor.-

is WM l l T UNITED STATES Patented september '27, 1904.

PATENT OFFICE.

ATTACHMENT FOR BAND-SAWS.

SPECIFICATION forming part of Letters Patent No. 770,805, dated September 27, 1904. Appneeaon ined November 30,1903. semi Ne. 183,187. (Ne model.)

T0 @ZZ whom, t may concern:

Be it known that I, ELLIS L. HAYDEN, a citi- Zen of the United States, residing at Salem, in

`the county of Essex and State of Massachullast may be presented to a band-saw in such a manner as to cut the same into three partsviz., a fore part, a heel part, and a waste part.

The invention consists in the combination and arrangement of parts set forth in the following specification, and particularly pointed out in the claims thereof.

Referring to the drawings, Figure 1 is a right-hand side elevation of my improved attachment for band-saws, showing the same attached to a table, the table being broken away to save space in the drawings, and a last supported upon said attachment. is a plan view of the parts illustrated in Fig. 1, the last being shown in full lines in the position in which it is held when the first cut is made in the last and in dotted lines in the position in which it is held when the second cut is made therein. Fig. 3 is a plan view similar to Fig. 2, illustrating in dotted lines the third position in which the last is held and in full lines in the position in which the last stands when the last cut is completed. Fig. 4 is a transverse section, partly in elevation, taken on line4 4 of Fig. 3. Fig. 5 is a side elevation of the three portions into which the last is divided. Figs. 6 and 7 are perspective views of interchangeable guide-walls. Fig. 8 is a plan view of a notched gage.

Like numerals referto like parts throughout the several views of the drawings.

In the drawings, 10 is a table or bench upon which my improved band-saw attachment is supported.

11 is a portion of a band-saw of theusual construction, and 12 is a guide-frame, fast by bolts 13 to the table 10. The frame 12 has `two outside guide-walls 14 and l5 extending Fig. 2 K,

in guideways 27 and 28 and between the guidevertically upward therefrom. The guide-wall 14 is integral with the frame 12. The guidewall 15 is adjustable transversely thereof toward and away from the guide-wall 14. Said guide-wall 15 is provided with an ear 16, constructed to slide upon ways 17, provided upon the frame 12, and is fastened to said frame by a clamp-nut 18, having screw-threaded engagement with a stud 19, fast to the frame 12, and extending upwardly therefrom through a slot 20, provided in the ear 16. By loosening the nut 18 it is evident that the outside guide-wall 15 may be moved lengthwise of the ways 17 and toward or away from the outside wall 14, and when at the desired distance from the wall 14 is clamped to the frame by tightening the nut 18. Interchangeable guide- walls 21, 22, and 33 of different thicknesses are provided, each having a downwardly-projecting flange 24, constructed to fit in a groove 25, provided in the upper face of the framebase 12 and intermediate the guide-walls 14 and 15.

A last-carrier slide 26 is constructed to slide walls 14 and 21 and21 and 15, Figs. 2 and3. The carrier-slide 26 has a knob or handle 29, by means of which it can be moved longitudinally of the guideways 27 and 28. A pivotal pin 30 is fast to the carrier-slide 26 and extends upwardly therefrom. Said pivotal pin is reduced in-diameter at its upper portion, forming a shoulder 31 between the upper and lower portions of said pin, and against this shoulder the last 46 rests when placed upon the contracted upper portion of said pivotal pin 30. vA gage 33 is fastened to the carrier-slide 26, said gage being notched at v 34 35 and-having a slot 36 extending therethrough, in which is located a screw 37, by means of which the gage 33 is adjustably fastened to the slide 26. Said gage is constructed to abut against a vertical ange 38, ex-

tending upwardly from a stop-plate 39, fastened by a screw 40 to the guide-wall 14. The screw 40 projects through a slot 41, provided in the stop-plate 39, so that said stopplate can be adjusted longitudinally of the wall 14 and slide 26. Another stop-plate 42 is fastened to the outside wall 15 by a screw 43, which projects through a slot 44, provided in said stop-plate, so that said stop-plate can be adjusted longitudinally of the wall 15. A projection 45 upon said stop-plate extends transversely therefrom, partly across and in front of the carrier-slide 26 when said carrier-slide is in the guideway 28, between the walls 15 and 21, as hereinafter described.

In carrying my improved band-saw attachment into practical operation a one-piece-last of the usual shape well known to those skilled in the art is divided into three pieces, as

shown in Fig. 5-viz., a fore part piece 47, a heel-piece 48, and a waste-piece 49. A straight cut 50 is made first. The second cut 51 is then made, and finally the cut 52, which eX- tends substantially at right angles to the bottom of the last and then describes a portion of a circle, the three cuts 50, 51, and 52 meeting on the circular portion 52, and thus severing the last into three pieces. The portions 47 and 48 of the last are subsequently hinged together, so that they rotate upon a pin extending through the hole 53 in the fore part 47, thus forming the hinged last well known to those skilled in this art.

The present method of making the cuts illustrated in Fig. 5 is to mark with a pencil the lines 50, 51, and 52, and this involves consider- `able labor and often leads to inaccuracy, it

being understood that there are three styles of lasts as to sizeviz., mens, womens, and childrens-and the depth of the cuts 50 and 51 and the distance of the curved portion of the cut 52 from the center of the hole 53 varies in these different styles, said distance being greatest for the mens and smallest for childrens sizes.

By the assistance of my improved device the position of the cuts 50 and 51 and 52 is determined without previously marking the last. The last 46, being provided with the hole 53, is first placed upon the pivotal pin 30, as shown in Figs. 1 and 2, the carrier-slide being placed in the guideway 27. Said carrier-slide is then pushed forward until the gage 33 abuts against the iiange 38 upon the stop-plate 39, thus making the cut 50. It will be evident that the depth of the cut 50 will be regulated by the gage 33, and if the last is a mans last the gage-plate 33 is adjusted transversely of the carrier-slide 26 to such a position that the upper side 54 of said gage-plate will abut against the flange 38 on the stop-plate 39. If a womans last, the gage 33 is adjusted so that the notch 34 alines with said flange, and if a childs last said gage-plate 33 is adjusted until the notch 35 alines with said fiange. Having made the cut `5() the operator moves the carrier-slide 26 backwardly until the last is disengaged from the band-saw and rotates said last upon the pivotal pin 30 until the cut 50 previously made in said last is parallel with a groove 55 provided in the upper end of the pivotal pin 30. The carrier-slide, together with the last, is now moved forward toward the band-saw by the operator and the cut 51 is made, said carrier-slide being carried forward until the gage 33 again abuts against the iiange 38. The two cuts 50 and 51 now having been made in the last in the proper location and carried to the proper depth or to the proper distance from the center of the hole 53, the carrier-slide 26 is moved backwardly away from the band-saw, out of the guideway 27, and slid into the guideway 28 between the walls 21 and 15. The last is removed from the pivotal pin 30, and still keeping the toe pointing toward the left, is reversed and placed upon the pivotal pin in the position indicated in dotted lines, Fig. 3. The carrier-slide is then carried forward until the end thereof abuts against the projection 45 upon the stop plate 42, thus making the straight portion of the cut 52. The operator now rotates the last upon the pivotal pin 30 and the curved portion of the cut 52 is made by the band-saw. It will thus be seen that the last 46 is divided into the three pieces, hereinbefore referred to-viz., the fore part 47, the heel-piece 48, and the waste-piece 49. 1n practical operation the cuts 50 and 51 are first made in the lasts, and then the carrierslide is transferred from the guideway 27 to.

the guideway 28 and the cut 52 made in the different lasts, so that if a large number of lasts is being cut, as hereinbefore described, the carrier-slide will only have to be transferred from one of the guideways to the other once in cutting all of the lasts of one style.

As hereinbefore set forth, the depth of the cuts 50 and 51 or the distance from the bottom of said cuts, and hence the radius of the curved portion of the cut 52, varies with the different classes of lasts-viz. ,mens, womens, and childrens lasts. The depth of the cuts 50 and 51 is varied by means of the notched stopplate 33, as hereinbefore described. The radius of the curved portion of the cut 52 is varied by changing the relation of the guideway 28 to the guideway 27, and this result is obtained by using the interchangeable guidewalls 21, 22, and 23, each of which is provided with a flange 24, which fits into the groove 25 and is held fast to the frame 12 by screws 56. It will be seen that the guide-wall 21 is the thinnest and the guide-wall 23 the thickest of the three interchangeable guide-walls referred to. last is operated upon, the guide-wall 22 when a womans last is operated upon, and the guidewall 23 when a mans last is operated upon, the outside wall being adjusted in each case so that the guideway 28 between the interchangeable wall and said wall 15 is in each case of the saine width, so as to receive the same carrier-slide 26.

The object of adjusting the gage 33 trans- IOO IIO

The guide-wall 21 is used when a childs versely of the carrier-slide 26 is, as hereinbefore described, to regulate thc depth of vcut in the last for mens, womens, or childrens lasts. The object of adjusting the stop-plate 39 is to compensate for any inequality in width between different band-saws, so that the cutting edge of the band-saw shall stop at the same distance from the center of the hole 53. The object of adjusting the stop-plate 42 longitudinally of the carrier-slide 26 is the same as for adjusting the stop-plate 39--viz., to compensate for any inequality in width of bandsaws.

I/Vhile I have described my invention as particularly adapted to making different cuts in lasts, it is evident that by the use of my improved mechanism other objects than lasts may be subdivided into parts or have cuts made in them without departing from the spirit of my invention. While I have described a groove in the top of the pivotalpin 30 as a cheap and convenient form of index, it is evident that the construction of the indeX may be varied so long as the same is supported upon the carrier-slide 26 without departing from the spirit of my invention. g

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. A band-saw, a frame, a carrier-slide, a vertical projecting pin adapted to engage and pivotally support perforated work, and guideways constructed `to receive said slide and guide said pin toward said saw upon opposite sides thereof, respectively.'

2. A band-saw, a frame, a carrier-slide, a vertical projecting pin adapted to engage and pivotally support perforated work, guideways constructed to receive said slide and guide said pin toward said saw upon opposite sides thereof, respectively, astop fast to said frame,

and a gage fast to said slide arranged to abut against said stop and limit the movement of vsaid slide and pin toward said saw.

3. A band-saw, a frame, a carrier-slide, a vertical projecting pin adapted to engage and pivotally support perforated work, guideways constructed to receive said slide and guide said pin toward said saw upon opposite sides thereof, respectively, astop fast to said frame, a gage fast to said slide arranged to abut against said stop, said gage provided with a series of notches on one side thereof at dierent distances from said saw, and means to adjust said gage transversely of said slide, bring said notches into alinement with said stop, and regulate the distance to which saidslide and pin may be moved toward said saw.

4. A band-saw, a frame, a carrier-slide, a vertical projecting pin adapted to engage and pivotally support perforated work, guideways constructed to receive said slide and guide said pin toward said saw upon opposite sides thereof, respectively, said pin provided with an index-line extending at an angle to the direction of motion of said slides.

5. A band-saw, a frame, a carrier-slide, a vertical projecting pin adapted to engage and pivotally support perforated work, guideways constructed to receive said slide and guide said pin toward said saw upon opposite sides thereof, respectively, said pin provided with a horizontal groove in the top thereof extending at an angle to the direction of. motion of sai'd slides.

p In testimony whereof I have hereunto set my hand in presenceof two subscribing Witnesses.

ELLIS L. HAYDEN.

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