US1681970A - Positioning device - Google Patents

Description

v 1,681,970 F. E. BERTRAND POSITIONING DEVICE Filed Dec. 14. 1922 2 Sheets-Sheet l Aug. 28, 1928. 1,681,970

F. E. BERTRAND POSITIONING DEVICE Filed Dec. 14. 1922 23heets-Sheet 2 Fig. 2.-

Patented Aug. 28, 1928.

uurreo f srares PA'lT-ENT OFFICE;

seminars n BERTRA'ND, or LYNN, MASSACHUSETTS, A'SSIGNOR r UNITED anon MAOHiNERY CORPORATION, or PArEnsoN, NEW

JERSEY.

JERSEY, A ooRPoRA'rIoN or NEW POSITIONING nnvron.

Application filed December 14, 1922. Serial No. 806,879.

This invention relates to devices for positioning soles, shoes or lasts, or other articles of asymmetrical outlineand is illustrated as embodied in an insole toe snippi-n-g machine of a well known type. The invention has forfone object theimprovemerit of machinesof this general character by providing accurate means for determining -the relative angular positions of .the work with respect to the tool which is to operate thereon The operating tool of a toe snipping machine consists of several knife edges which are operated by the power of the machine to slit the channel flaps and the outer lips of insoles, especially of insoles for narrow or sharply pointed shoes, and it is important that the work be Very accurately p0- sitioned in predetermined angular relation to the knife edges. It has been customary to provide these machines with a gage for the end of the toe of the sole, and with a pair of side gages which aflord considerable assistance to the operator in determining the correct position of eachsole. There is no positive assurance that thejoperator will position soles of different styles and sizes in any constant manneror that different operators will present the work in the same '%he present invention provides for increasing the accuracy with which the soles are positioned by providing means for relatgively turning the sole and the knife or other tool to place them in predetermined angular relation to one another. Of special uti ity in a construction of this character, although not necessarily so limited, is an arrangement by which each sole is engaged by apluralityof pairs. of connected positioning arms which are movable over a support to engage the edges of a sole at differentdistances from the endzof the toe 'so as to eliminate all necessity of relying upon the eye of the operatorin determining the exact angular position of each sole.

{In the illustrated embodiment of the invention a gage is-provided for the end of a the, toe of a sole on -a support, one connected pair of arms provided with side gages is arranged to engage opposite sides of the sole adjacent'to the toe gage, and a second connected pair of arms formed with side gages is arranged to engage opposite sides two pairs of arms are operatedth rough an soleis not placed in the correct angular-position on the support it is turned on the support by engagement with the gages car ried by the arms into a definitely predetermined angular position. Preferably the equalizing device so that one pair may close further than the other pair according to the contour of the particular sole being 'oper-ated upon.

Other features of the invention includin' various specific constructions and novel combinations of parts will be a parent from the following description of the illustrated embodiment of my invention shown in the accpmpanying drawings in which:

Figure 1 is a side elevation of *so much of a: toe snipping machine as is necessary to illustrate my invention Fig. 2 is a top plan View of the sole sHppo'r t and the sole positioning means; and

Big. 3 is a perspective View of the sole support shown in Fig. 2, but with the parts indifferent posit-ions. The toe sn-ippin'g machine shown generally in Fig. 1 comprises a base or pedestal 10, a horizontal, sole supporting table 12 carried thereby, and a tool 14 having several knife ed 'gesand which is reciprocated toward and from work on the support 12 'by an eccentric on a power shaft 16 controlled by a suitable one-revolution clutch. These parts may be, and are illustrated as being, of a. construction identical with those shown and described in United States Letters Pate'n-t No. 1,087,578, granted Feb. 17', 1914, on application of John B. adaway, in which are fully disclosed knives having respect vely straight and V-shaped edges for catng transverse'l the insole channel flap and 1p. The insoles to be operated on by the tool 14 are positioned with the ends of the toes aga nst a toe gage 18, 'the"exact angular position of each sole beingde'termi-ned by two pairsof side gages of which one pair comp-rises rolls 20 carried by upper was 2-2 and of which the other pair is provided by the outer ends of lower arms 24. As shown in Figs. 2 and 3, the arms 22 are geared together and are pivotally mounted on two studs 26 projecting vertically from support 12. The arms 24 are also pivotally mounted at 26 and are geared together as best shown in Fig. 2. One of the arms 22 carries a downwardly extending pin 28 and the opposite arm 24 carries an upwardly extending pin 30, the pins 28 and 30 being engaged by opposite arms of a lever 32, constituting an equalizer, pivoted at 34 on an operating slide 36. Slide 36 is operated to close both sets of arms'through equalizer 32 by means of a bell crank lever 38 (Fig. 1), which may be operated by'the power of the machine or which may be connected to a suitable'treadle (not shown) by means of a treadle rod 40. The outermost position of arms 22 and arms 24 is determined by engagement of one of the arms 24 with a stop 42- mounted in the support 12. The arms are urged at all times toward their outer-.

most, or normal and inoperative, position. by a coiled spring 44-connected at one end to one of the arms 22 and at its opposite end to a post 46 carried by the support 12. lVhile the arms 22 are being drawn outward by spring 44, the rolls 20 engage the arms 24 and then carry them to their outermost position.

In operation, a sole is placed on support 12 with its too in engagement with the toe gage lS and treadle rod is depressed to move slide 36 rearwardly, that is, away from toe gage 18. Arms 22 and 24 close simul taneously untilside gages 20 or the outermost .ends of arms'24 engage opposite sides of the sole, whereupon the equalizer 32 permits one set of arms to remain stationary while the other set continues to close until the sole is firmly grasped and positioned by both. sets of arms in co-operation with the toe; gage 18.

r It will be observed thateven if the sole is originally placed in an incorrect position the closing arms will operate to turn it in a horizontal plane to bring it into such a position that twolines transversely of the sole arbitrary distances from the end of the toe will be perpendicularly bisected by a line which is at all times equidistant from the side gages 20 and also. from the outermost ends of arms 24. This line may be defined asa line parallel to the work table 12 which 7 would pass. through a point in the line of contact of the ends of arms 24 and another pointin the line of contact of the peripheries of both rolls 2( if the said ends and the said rolls respectively were brought. intocontact by the-turning of the arms inwardly about the studs 26. Since a sole is not a symmetrical object it has no true cent-er line, but for a number of operations,including toe snipping, it has been found convenient to regard such a perpendicular bisector as.

the center line of the sole and the above described connections operate to place this center line in exact coincidence with a line and angularly.

perpendicular to toe gage 18 and with re spect to which both pairs of side gages arc symmetrically arranged.

More particularly a sole will, in most instances, be so placed on the support 12, be tween the gages of each pair. 20, 24 and against the toe. gage '18, that it lies more or less out of its correct final position, with respect to the operating tool, both laterally In such case, during the movement of the slide 36 to the right, as illustrated, one of the side gages 24, for example, will come into contact with the edge of the solebefore its companion gage 24, whereupon the first of these gages will shift the sole laterally over the support 12 into contact with said companion gage, thus centering the engaged portion of the sole. Similarly, if one of the other pair of side gages 20' comes into contact with the sole edge before the other gage of the pair it will then likewise shift the sole laterally. If the equalizing lever 32 were fixed immovably to the slide 36, then, after the gages 24 had gripped the sole, but before the gages 20 had done so, further movement of the slide 36 to the right would be prevented, since the gages 24 could move no further, with'the result that the gages 20 could notbe brought into gripping engagement with the sole. However, in the illustrated construction, because the lever 32 is pivoted'to the slide 36, that lever functions as an equalizing device so that after the sole has been gripped by the gages 24, the turning of the lever 32 permits continued movement ofthe slide 36 until the sole is further positioned and finally gripped by the other gages 20, thus insuring that each sole, whatever its size or shape, shall be definitely positioned both laterally and angularly on the support 12 and with relation to the tool 14.

Furthermore, this positioning device will maintain the sole in this correct position and resist any lateral pressure unintentionally applied by the operator to the rear end of the sole which tends to turn it out of such correct position. I

While my invention has been described as embodied in a toe snipping machine it is not my intention to limit its scope thereby or .otherwise than by the terms of the appended claims. The positioning device which has been described above could obviously be readily modified within the spirit of my invention to be utilized in positioning lasts or shoes or other asymmetrical objects, and it is my intention that'the term sole pattern as used in the claimsshall be interpreted as covering such asymmetrical objects, as well as detached soles.

l-Iaving described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A sole positioningdevice comprising,

port by engaging opposite sides of the sole at difierent distances from one end therof. 2. A sole positioning device comprislng,

in combination, a flat, horizontal, sole support, two pairs of connected positioning arms of difi'erent lengths, a pair of pivot studs for said arms projecting vertically from said support, each studconstituting a fulcrum for one arm of each pair, and common actuating means for moving all of said arms over the support substantially in a horizontal plane to determine the .position of a sole on the support.

3. A sole positioning device comprising, in combination, a gage for the end of the toe of a sole pattern, a connected pair of side gages to engage opposite sides of the sole pattern adjacent to the toe gage, a second connected pair of side gages to engage op- JOSltG sides of the sole pattern further from the toe gage, and means including an equalizing lever for operating the side gages.

4. A toe-snipping machine comprising, in combination, a toe-snipping knife, a fiat sole supported below the knife, a gage for the toe of a sole on the support, a pair of connected side gages pivoted on the support adjacent to the toe gage, a second pair of connected side gages further from the toe support, and equalizing connections for operating the side gages.

5. A positioning device comprising, in combination, a. pair ofgeared-together side gage arms, a pin carried by one of said arms, a second pair of geared-together side gage arms, a .pin carried by one of the second pair of arms, and'an equalizer engaging said pins and operable to close the arms.

'6. A positioning device comprising, in combination, a pair of geared-together side gage arms, a pin carried by one of said arms,

a second pair of geared-together side gage arms, a pin carried by one of the second pair of arms, an equalizer engaging said pins and operable to close the arms, and a stop to determine the open position of the arms.

7. A sole positioning device comprising, in combination, a sole support, a plurality of pairs of connected positioning gages movable into and out of engagement with a sole upon said support, yielding means acting normally to move the gages away from the sole, and means including an equalizing device through which all of the gages may be moved into engagement with the sole.

8. A positioning device comprising, in combination, a work support, a plurality of pairs of connected positioning arms movable relatively to the support to determine the position of a sole pattern on the support both angularly and laterally, and common actuating means for all of said arms constructed and arranged to permit movement of one pair of arms after the other pair has ceased movement.

9. A machine for operating upon a sole pattern comprising, in combination, a support for a sole pattern, a tool designed to operate in definite angular relation to the pattern on said support, and means for turning the pattern on the support to place it in. predetermined angular relation to the tool comprising two pairs of movable work engaging members and common actuating means through which all of said members may be moved toward the pattern by the operator, said means including an equalizer which permits movement of one pair of said members independently of the other pair.

10. A machine for operating upon a sole pattern comprising, in combination, a supportfor a sole pattern, a tool designed to operate in definite angular relation to the pattern on the support, an end gage, a pair of connected side gages adjacent to the end gage, a second pair of connected side gages further from the end gage, and a single mechanism constructed and arranged to be actuated by the operator and including an equalizing device for bringing all four of the side gages into gripping engagement with the sole pattern.

In testimony whereof I have signed my name to this specification.

FREDERIC E. BERTRAND.

CERTIFICATE or CORRECTION.

Patent No. 1,681,970. Granted August 28, 1928, to

FREDERIC E. BERTRAND.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 3, line 31, claim 4, for the word "supported" read "support"; and that'the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of June, A. D, 1929.

. M. J. Moore,

(Seal) Acting Commissioner of Patents.

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