US934027A

US934027A - Miter-cutting machine for metallic binding for patterns, &c.

Info

Publication number: US934027A
Authority: US
Inventors: Holton J Sutherland
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-12-16
Filing date: 1908-12-16
Publication date: 1909-09-14
Anticipated expiration: 1926-09-14

Description

'I-I. J. SUIHERLA'ND. MITER CUTTING MACHINE-FOR METALLIC BINDING FOR- PATTERNS,` w.

APPLIOATION FILED D1-.0.16,19o8. v

'934,027'. Patented Sept-14,1909.- gg 9 $7/ 57 gums-SHEET 1.

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N H. J. SUTHERLAND. y MITER GUTTING MACHINE FOR METALLIC BINDING FORPATTERNS, 6m.

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MITER CUTTING MACHINE FOR METALLIC BINDING FOR PATTERNS, dw.

APPLICATION FILED DB0.16,1908.

934,027. Patented sept. 14,1909.

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H. J. SUTHERLAND. MITBR CUTTING MACHINE TON METALLIC BINDING TON PATTERNS, Aw.

APPLICATION FILED DEG.16,1908.

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Il f) UN! 1TB STATES PATEN I-IOLTON J. SUTHERLAND, OF SWAMPSCOTT, MASSACHUSETTS.

Application led December 16, 1908.

To all whom tt may concern.'

Be it known that I, IIoLToN J. Sori-1ER- LAND, citizen of the United States, residing at Swampscott, county of Essex, State of Massachusetts, have invented a certain new and useful Improvement in Miter-Cutting Machines for Metallic Binding for Patterns and the Like, of which the following is a specilication, reference being had therein to the accompanying drawings. l

In the manufacture of boots and shoes and certain kinds of garments and various other articles it is customary to use a pattern shaped to the blank which is to be cut from a sheet of material out of which the article is to be made and to lay the sheetof material upon a cutting board, placing the pattern upon the sheet, and then cutting around the pattern with a knife by hand to cut the blank from the sheet. Patterns for this purpose are frequently made of thick paper or paper board, such as junk board or other similar material and in order to protect the edge of the pattern from undue wear or from being cut with the knife, it is common to bind the edge of the pattern with a metal-` lic binding. The binding usually employed for this purpose comes in long pieces or strips somewhat flexible and formed U- shaped in cross-section, the width of the groove formed by the legs of the U-shaped strip being just sufficient tov easily fit the thickness of the pattern to be bound, and when the binding is run onto the pattern it is necessary to pass it through some sort of a squeezing device to pinch the binding onto the pattern so as to hold it securely. It is desirable to have the binding as a continuous strip running entirely around the pattern, rather than to have the binding put on in sections. In order to enable the continu-` ous binding strip to be bent around corners of the pattern in applying it, and to prevent buckling of the side flanges or legs of the binding at such corners, it is desirable to cut miters or V-shaped sections out of the legs or flanges of the binding strip at the points where it is to be bent. It is important that these miters should be cut at exact-ly the right point in order to give a proper iit, that is the center of 'the miter or the apex of the V-shaped notch should come directly at the corner of the pattern. I-Ieretofore it has been customary to lirst apply the binding Specification of Letters Patent.

strip to one edge of the pattern and pinch Patented Sept. 14, 1909.

Serial No. 467,801.

it on for a portion of its length to hold it in place, then to measure and mark with some instrument on the binding strip exactly where thev miter is to be cut, in alinement with a line drawn from the corner of the pattern at right angles with the edge last bound, then lto bend or spring away from the pattern a portion of the strip near where the miter is to be cut, then apply it to the mitering machine and cut the miter, then to bend the strip around the corner, and in the same way to measure each one of the sides and mark the strip before mitering it. This same process has to be gone through with for every succeeding pattern even if of the same size and shape, so that if twenty-live or fifty patterns of exactly the same size and shape are to be bound, the same measuring and marking process has to be gone through with for each one of them.

The main object of my invention is to provide a mitering machine having attached thereto a guide whereby the exact point at which the miter is to be cnt may be determined with accuracy for each pattern without the necessity of marking the pattern and also to make the guide adjustable so that it may be adjusted for adapting it to patterns of varying contour.

Another feature of the invention relates to the miter cutting mechanism.

The invention will be understood from the following description taken in connection with the accompanying drawings, and the novel features are pointed out and clearly defined in the claims at the close of the specification.

In the drawings Figure l is a plan of a machine embodying the invention. Fig. 2 is a front elevation of the machine. Fig.

is a left hand side elevation. Fig. l is an enlarged view of the cutter mechanism. Fig. 5 is a section on line 5 5 of Fig. Ll showing the cutter in its lowermost position. Fig. 6 is a section on line 5 5 of Fig. l showing the cutter in its elevated position. Fig. 7 is a plan of a bound pattern. Fig. S is a plan of a pattern showing the binding strip started on one edge thereof, before being mitered for the first corner. Fig. 9 is a plan showing the pat-tern in the same partially bound condition as in Fig. 8, set in the machine ready for mitering the first corners. Fig. 10 is a plan showing the method of mitering for the second corner, which is for strip clenched onto three sides and partially Y run onto a. fourth side.

Referring to the drawings A represent-s1 a pattern of the blank which is to be cnt out and B represents the metallic binding strip.

For illustration, the blank A which is shown is a pattern of a shoe quarter and is of somewhat irregular shape having the sides a, c, cl, e, and f, and corners respectively 1, 2, 3, t, 5 and 6. The binding strip B is preferably started for convenience at one corner, as for instance 'on the edge a at the corner 6, and run on for a portion of the side a, as shown in Fig. 8. The strip is run from the edge a around the corner 1, onto the edge o. In order to enable the strip to turn the corner the legs or side flanges of the strip should have formed in them the miters or V-shaped notches T which should be located exactly at the proper place so that the bend will be made exactly at the corner 1. In carrying out my invention after the strip is started on the edge o as already described it will be pinched onto the edge co of the pattern for a portion of the distance toward the corner 1, being left some distance back from t-he corner unpinched so that the strip may beV sprungaway from the pattern at the corner and placed in the miter machine to enable the miter to be cut wit-hout cutting the pattern. VIn order to be sure of having the -miter cut in the strip at the proper point before turning the corner 1 it is necessary to have some way of marking or indicating where it is to be cut. This point should be the apex or center of 'the notch and should be directly against the fedge of the corner 1. It will be observed that .when t-he binding strip is set down upon the edge, the downwardly extending legs or the side iianges of the strip will cover up the corner and lie down for a short distance onto the face of the pattern. Owing to this fact it will be seen that if the second edge to be covered, as b, makes an obtuse or acute angle with the edge a, if the strip is setdown close to the edge a for its full distance to the corner 1, it will be impossible to tell exactly where the -corner is, unless some previous mark is made upon Athe pattern at rightangles with the edge a; from the corner. Therefore it has heretofore been customary before closing down the strip upon the edge L to mar-k a line upon the side of the pattern running from the corner 1 upon the'face of the pat-- tern and at right angles with the edge a and "then when the binding strip is brought down close upon the edge a Yto make a mark on the binding strip against the line to indicate where the miter should be cut.

The machine embodying my invention is mechanism which may be actuated at theV will of the operator may be employed to operate the plunger. The mechanism shown for elevating the plunger consists of a lever 14 fulc'rumed intermediate its ends at 15, one end of which engages with the slotted lower end of the plunger within the hollow base of the standard 13, the other end` of the lever projecting out through the sl 'ot 16 in the side of the base and may bei operated in any suitable manner, preferably'by the foot of the operator by means of a treadle. rlhe aluno'er is retracted after the` foot is released from the treadle, by a spring 17 which holds it in its normal position. Projecting from the upper end of the plunger 11 is a kmiter cutter 18 shaped in cross section to the form of the notch to be cut. The Vcylinder 12 within which the plunger 11 reciprocates projects somewhat above the upper endV of the standard 13,'and projecting still farther upward is a segmental extension 19 of the cylinder 12 having the

edges

20, 21. Formed in the outer periphery of the segmental extension 19 of thev cylinder 12 are two horizontal grooves 272, 23, one above the other spaced apart equal to the crss sectional dis- `edgeof the miter cutter 18 to project into said slit and engage the iianges of the strip when the plunger is moved upward. A vertical line 25 on the upper portion of the periphery of the extension 19 indicates the center of the slit 2-1 yor where the center of the cutter will come up.

In order to cut the miter in the binding strip, as for instance after the strip has been started on the edge a, and pinched down for a portion lof its distance to ,prevent its slipping off, the strip is entered into the grooves.

22, 23 and shoved forward untilthe corner 1 of the pattern strikes the guide as will. be hereinafter explained, the strip being sprung away from lthe edge a sufficiently so that the edge a, will slide along against the inner flanges of the strip. An adjustable guide is provided to indicate exactly how far forward the pattern and strip are to be moved to cut the miter in order that the pattern may be moved directly into position without the necessity of marking the pattern or strip. Any suitable guide may be provided but the one which I have shown and which I prefer is as follows: Mounted on the upper end of the standard 13 at the opposite side from that from which the binding strip is entered is a block 27 having adj ustably mounted thereon a guide plate 2S which projects horizontally above the upper end of the cylinder' 12 in a direction to meet the advancing corner of the pattern. This guide 28 is longitudinally adjustable in the block 27 by means of an adjusting screw 29 having a flange 3() which engages with a slot 31 in the guide 23. 3y turning the adjusting screw 29 the guide may be moved forward or backward. In order to enable the guide to be adjusted lo the proper position for any particular angle I provide the machine with a scale having divisions 311 marked thereon. The scale divisions may be marked directly on the guide 28.

lVhere the edge to be bound is very short, as for instance, the edge Z), I provide special supplementary guide mechanism.

In running the strip on short sides such for instance as the side b the side is so short that if the strip be pinched onto the side a for its entire length and the corner 1 is turned and the strip then partially pinched on the side b before the miter for the corner 2 is cut there is not sufficient length for the strip to be engaged in the

grooves

22, 23 and for the corner 2 to be brought up against the guide 28 in the manner previously described for cutting the miter for cornery 1. I therefore provide means whereby the strip may be suitably guided to cut the miter for the corner 2 after the miter for corner 1 is cut before the strip is bent around the corner 1. rIhe guide mechanism which I employ is as follows: Mounted in a bearing 30 on the upper part of the standard is a sleeve 321 through which loosely passes a shaft 32 having at its rear end a handle or knob 33 and having at its forward end a finger or knife 34 turned up at a right angle with the shaft, this finger being formed with a thin or knife edge. The loose fit of the shaft within the sleeve enables the shaft to be rotated within the sleeve without longitudinal movement with relation to the sleeve, 'one end of the sleeve but-ting against the handle or shoulder on one end of the shaft and the other end of the sleeve butting against the finger 34. The sleeve lits loosely within the bearing 30 so that the sleeve and shaft together may move longitudinally within the bearing. The shaft 32 and its holding sleeve are adjusted to such position that the distance from the edge of the finger 34 to a point opposite the center of the slit 24 will be equal to the length of the short side b between corners 1 and 2.

In order to indicate where the miter is to be cut for turning the corner at the end of a short side, as for instance the corner 2 at the end of the side b as above mentioned, after the miter for the corner 1 is cut and before. bending the strip to turn the corner 1 thev pattern and attached strip are moved back and adjusted so as to bring the finger 34 into alinement with or opposite the apex of the notch which has already been cut for the corner 1 and the plunger is then operated t) cut another notch in the strip while in this position. This last notch will be cut at exactly the point where the distance between its center and the center of the notch for the corner 1 will be equal to the length of the side 7) so that now the strip can be bent around the corner 1 and then bent around the corner 2, both miters being cut in the right position for this purpose. rIhe strip can be pinched onto the side 5 and bent around. corner 2 and run partially around the side c, being bent to fit into the concave curve 35. The strip is left free to spring back from the edge for a short distance and should then be mitered to turn the corner 3 as previously described for corner 1. The mitering and bending on of the strip will then be carried on successively for the other sides and corners by using the guide in the manner previously described. The most convenient method is to bind one side at a time for all of the patterns of the same forni which are then in the pile ready for binding,

and then to start again with the first pattern and bind its second side and run through all of the patterns for the second side before binding the third side, this being especially convenient if the guide is to be re-adjusted for the second corner so as to save adjusting it but once for the whole set. If, however, there are several corners in series having the A same angle of turn on a short side as above described all of such sides may be'bound on each pattern before taking up the next paftern. A line 40 is preferably marked on the upper end of the standard whereby the finger 34 may be adjusted at any subsequent time to the proper position to indicate where the miter shall be cut in another set of patterns of the same length of side.

Not only is it desirable to have the guide 28 adjustable longitudinally in the block 27 but it is desirable to have the guide adjustable laterally. If the guide is mounted in a block 27 this lateral adjustment may be obtained by making the block 27 adjustable laterally. One way of accomplishing this is to mount the block upon a screw 37 which extends up through an elongated slot 3S in a flange 39 on the upper end of the standard 1,3. and may be set up to clamp the block in this adjusted position.

That I claim is:

l. In combination with a machine for miteriag a binding strip for turning the binding strip around a corner on the partially bound article, a guide for positioning a corner of the partially bound article with relation to the cutter whereby an unbound portion of the binding strip is also positioned in relation to the cutter.

2. In con'ibination, a machine for mitering a continuous binding strip for turning the binding strip around acorner of a partially bound article, an adjustable guide for positioning a corner of the partially bound article whereby an unbound portion of the binding strip is positioned in relation to the cut-ter.

3. AIn combination with a machine for mitering binding strips for turning the binding strip around. corners of an article to which the str-ip is partially attached, an .adjustable guide for positioning the unattached Iportion .of the binding stripin relation to the cutter, and a sca-le whereby the position to which the guide should be adj-usted for any particular corner may be indicated. 1

4. In combination with a machine for mitering binding strips for turning corners, a guide whereby 4the article with the strip partially bound thereon may be positioned and thereby HX the position of the strip with relation to the cutter, and a secondary guide to be used in combination with said irst guide for positioning the strip tor mitering a second corner at the end of a short side.

5. In .a machine tor mitering binding strips to facilitate bending the strip around corners, a pglunger carrying at its end miter cutter, means for vertically reciprocating said plunger and fcu-tter, a guidel whereby the article with the strip partially'bound thereon is positioned and thereby the binding strip is positioned with relation to the cutter.

In a machine for mitering binding strips to facilitate bending .the strip around corners, a ini-ter cutter, means for vertically reciprocating said cutter, a guide whereby 4the article with the strip partially bound thereon and having a projecting free portion is positioned and thereby the projecting free portion of the binding strip is positioned with relation to ythe cutter.

7. In a .machine dior ruiter-ing binding strips to facilitate bending .the strip around corners, a plunger carrying :at its upper end a miter cutter, vmeans for reciprocating said plunger and cutter, an Ladjust-able guide which forms an abut-ment for a corner of -the article with the strip partially lbound Atherey lon and having a projecting free portion The screw 437 screws into the block 27' Iguide should be adjusted.

partially attached, said strip having a projecting free portion, a plunger carrying at its end a miter cutter, means for reciprocating said plunger and cutter, a slotted guide and support for the free portion of the binding strip, said guide having a slot within which the cutter reciprocates, a guide which forms an abutment for the pattern. whereby the pattern is positioned and thereby the binding strip is positioned to `be engaged by the cutter at the point where it is to be bent to turn a particular corner.

9. In a machine :tor mitering binding strips to facilitate bending the strip around corners of a pattern to' which the strip is already partially attached, a plunger carrying at its upper end a miter cutter, means for reciprocating said plunger and cutter, an adjustable guide which forms an abutment for the corner of the pattern whereby a projecting tree portion of the strip is positioned to be engaged by the cutter at the point where it is to be bent to turn said corner and a scale which indicates the position to which the l0. In combination with a machine for initering a binding strip for bending the binding strip around ,a corner of an article upon which the strip is already partially bound, said strip being partially secured to the edge of the article before reaching the corner, a guide for positioning the corner of the article around which the strip is to be ter, vrmeans for Ireciprocating said cut-ter, a slotted ,guide and support for the free portion of the binding strip,y said guide having a. slot within which the cut-ter reciprocates, 4a guide against which the article to be bound may be made to abut whereby the article .may be positioned and thereby the 'binding strip may .be positioned `tobe engaged by the cutter at the point where it is to be bent to turn a particular corner, a scale which indicates the position to which the guide should be adjusted, a .secondary guidel to be used in combination with said tirst guide for positioning .the strip for mitering a second corner at .theend of a short side.v

12. In a machine XJfor .mitering binding f Astrips to facilitate bend-ing the strip around slotted support for the tree portion of the binding strip7 a guide against which the article to be bound may be made to abut whereby the article may be positioned and thereby the binding strip may be positioned to be engaged by the cutter Vat the point where it is to be bent to turn a particular corner, a rotary adjustable guide having a finger which may be set to indicate the distance between a miter already cut and the initer to be next cut whereby after one miter is cut the strip may be positioned for the next miter.

13. In a machine for mitering binding strips to facilitate bending the strip around corners, a vertically reciprocable miter cutter, means for reciprocating said cutter, a slotted support forthe free portion of the binding strip, a guide against which the article to be bound may be made t-o abut whereby the article may be positioned and thereby the binding strip may be positioned to be engaged by the cutter at the point it is to be bent to turn a particular corner, a rotary adjustable guide having a finger which may be set to indicate the distance between a miter already cut, and the miter to be next cut whereby after one miter is cut the strip may be positioned for the next miter, and scales to indicate the position to which said guides should be adjusted.

14. In a machine for mitering binding strips for turning corners, a vertically reciprocable plunger carrying at its upper end a miter cutter, means for vertically reciproeating said plunger and cutter, and a holder for the binding strip adapted to hold the strip in position for the strip to be engaged by the cutter on its up stroke.

15. In a machine for mitering binding strips for turning corners, a vertically reciprocable miter cutter, means for vertically reciprocating said cutter, and a holder for the binding strip adapted to hold the strip in position for the strip to be engaged by the cutter on its up stroke.

In testimony whereof I affix my signature, in presence of two witnesses.

IIOLTON J. SUTIIERLAND.

Vitnesses WILLIAM A. COIJELAND7 ALICE H. MORRISON.