US933174A

US933174A - Machine for making imitation stitches.

Info

Publication number: US933174A
Application number: US20466404A
Authority: US
Inventors: John B Hadaway
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1904-04-25
Filing date: 1904-04-25
Publication date: 1909-09-07
Anticipated expiration: 1926-09-07

Description

JLB. HADAWAY. MACHINE FOR MAKING IMITATION STITGHBS.

APPLICATION FILED APR.25`, 1904.

Patented Sept. '2, 1909.

UNTED sTATEs'jPATENT oEEioE.

JOHN E. HADAWAY, OE BRooKToN, "MASSACHUSETTS, ASSIGNOR To UNITED sI-IOE MACHINERYk COMPANY, 0E rATERsoN, NEW JERSEY, A CORPORATION OE NEW JERSEY.

MACHINE FOR `IVIAKIJNT(Strg IMITATION. STITCI-IES.

Speciication of `Letters Patent.

Patented Sept. 7, 1909.

Application fuearApni 25, 1904. serial No. 204,654.

To all whom 'it may concern: j

Be it known that I, JOHN B. 'I-IADAWAY, a

citizen of the United States,'residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented cer-v tain new and useful Improvements in"Ma-` for making imitation stitches upon the upper surface of the projecting edge of a boot or shoe sole in order to impart a nislied andV attractive appearance to this portion of thel sole similar to that of a boot or shoe provided with an outseam.

The object of the present invention is to provide a machine for making indentations in the upper surface of the projecting edge of the sole of a shoe to form imitation stitches, by which the indentations can .be arranged on the surface of a sole at substantially right angles to the vedge ofthe sole and by which the indentations can be accurately spaced any desired distance apart.

With this object in view the invention contemplates the provision of an automatically adjustable indenting tool which is actuated to indent and feed the work, and means independent of the work, acting automatically to adjust the indenting" tool to regulate the extent of the feeding movements of the tool.

Broadly considered the invention contemplates any suitable automatic meanswhich will act independently of the work to adjust the tool. The mostr simple and efficient means which has yet been devised, however, comprises a stop located at one side of the tool and arranged to engage andl adjust the tool at the beginning of its feeding movement, and the use of thisstop to adjusty the tool atvthe beginning of its feeding movement is considered t-o be a feature ofthe invention. This stop limits themovement of the point ofthe tool in one direction only and in order to properly regulate the extent of the feeding movementof the tool, the tool must be adjusted to limit the movement of the point of the toolin the opposite direct-ion. of the invention contemplates the 'provision In its broader aspects this featurek of any suitable means for adjusting the tool to produce this result, but preferably the v adjustment of the tool to limit the movement of the point of the toolinthe opposite direction is effected by means of a stop located upon the opposite side of the point of the vtool and arranged to engage and adjust the tool at the completion of its feeding movement.

The invention is intended primarily as an improvement on stitch separating machines adapted to operate upon a finished seam and which comprise an automatically adjustable lstitch separating and indenting tool, the adj ustment of which, to compensate for stitches of varying lengths, is effected by the engagement of 'the point vof the tool with the stitches, thev primary obj ect of the invention i being to adapt such machines for operation upon work which is not provided with a seam, to form imitation stitches therein. In carrying out the' invention, a stitch separating machine of the class referred to has accordingly been provided with stops located `upon opposite sides of the point of the inso denting tool and arranged to engage and adjust the tool at each end of its feeding movement to regulate the extent of the feeding movement of the tool. As illustrated in the drawings hereinafter referred to these stops are formed by the jaws of a work support arranged to extend over the upper surface of the work on each side of the indenting tool, the jaws of the support being relatively adjustable toward and from each other to vary the width of the opening between the jaws in which the point of the tool operates. This work support, provided with jaws relatively adjustable toward and from each other to vary the width of the opening in which the point of the indenting tool operates, while primarily intended for use in a stitch separating machine to adapt the machine for making imitation stitches, can also be advantageously used in a stitch separating machine when the machine is used to separate and indent the stitches of a finished seam, as in order to produce the best resultswhen the machine is so used, it is necessary that the opening between the jaws ofthe work support in which the point of the tool operates should be just wide enough to allow the Atool to locate and indent the stitches. Heretofore it has been necessary to provide a number of work supports provided with adjusted to suit the length of the stitches of Y thecseam which are to be operated upon. It is, therefore, considered that this work support-provided with relatively adjustable jaws 'between which the point of the indenting 'tool operates constitutes a feat-ure of the invention, whether such work support is used v in an imitation stitch machine or in a stitch separating` and indenting machine adapted to operate upon a finished seam.

The .present invention will be clearly understood from the accompanying drawing in whichj `liigure 1 is a view in front elevation of a machine embodying the same in its preferred form; Fig. 2 is a plan view of the work support provided with relatively adjustable j aw-s forming stops for adjusting the indenting tool to regulate the extent of thefeeding movement of the tool, and Fig. 3 is a view in sideV elevation of the work support nshown in Fig. 2.

The machine illustrated in Fig. 1 of the drawings is the stitch separating and indenting machine disclosed in applicants prior `patent No. 543,012, dated Julyy 23, 1895,

modified in accordance with the present invention to adapt Vthe machine for making imitation stitches, to which patent referenceY may be had for a complete illustration and description of the mechanism for actuating the various parts ofthe machine.

Referring to Fig. 1, the indenting tool is indicated at 1 and is clamped -in the lower end of a tool stock 2 pivotally mounted .upon

Vastud 8 projecting laterally from the tool carrying lever l. The tool stock 2 is capable of-an oscillating movement about Vthe stud 3 and Visretained in the position to which it is oscillated by friction devices fully illustrated Vand `described in ythe patent above referred to. The indenting tool is thus 'supported from `the lever 4l so as to allow a lateral adjustmentof the tool during the operationfof Ythe machine.

In .the machine illustrated the indenting tool is utilized both to indent and feed the work, mechanism being provided for mov-` ing fthe tool towardand from the work and -for moving itlaterally while yin engagement with the work. This mechanism is the same -spring Vacting to press thertool yieldingly against the work when the lever 4f is released by the lifting lever, a pressure lever 7 acting on Ithe lever t to force the tool into the work to form an indentation, a feed slide 8 upon which the lever 4 is mounted and a lever for actuating the feed slide, the pressure lever 7 also acting upon the tool stock 2 through a projection 9 on the end of the lever extending over a roll 10 mounted in an arm projecting laterally from, the tool stock.

The work is supported during the action of the tool thereon by a lower work support 11 rotatably mounted upon the upper end of a vertical slide 12. This slide is yieldingly supported by a spring 13 while the work is being fed, but during the indenting movement of the tool is positively held in a slightly raised position by camactuated mechanism, the construction and opeiation of the work support, the slide and the mechanism for supporting and actuating the slide being the same as in the patented machine. An edge guide 14 arranged to bear against the edge of the sole determines the position of the work with relation to the indent-ing tool.

The mechanism above described is utilized in the patented machine to locate and indent the intervals between the stitches of a 1inished seam, the indenting tool being automatically adjusted to locate the tool in the stitch intervals and feed the work distances varying with the length of the stitches. In the illustrated embodiment of the present invention this mechanism is utilized to make indentations in the upper surface of the projecting edge of a shoe sole in imitation of the stitches of an outseam and to feed the work uniform distances to space the indentations equal distances apart. This result is-accomplished by providing an adjustable stop at one side of the pointof the tool arranged to engage and adjust the tool at one end of its feeding movement, a stop at the other side of the point of the tool also being preferably provided arranged to engage and adjust the tool at the other end of its feeding movement. yIn the embodiment of the invention illustrated in the drawings these stops are conveniently formed by `the jaws of an upper work support 14X secured to the frame of the machine and having its jaws arranged to extend over and lpress upon the work at each side of the point of the indenting tool. The jaw 15 of the upper work support is rigid with the body portion `of the work support and extends over the llO illustrated in Fig. 2, and is adjusted toward and from the stationary jaw by means of adjusting screws 17v and 18, the screw 17 passing through the movable jaw and screwing into the fixed jaw and the screw 18 having a screw-threaded engagement Vwith the fixed jaw and bearing against the stationary jaw. As an additional` means for securing the movable jaw in adjusted `position a clamping screw 19 is provided `passing through a horizontal slot in the movable jawl and screwing into the body Vportion of the work support. The work support acts in the same manner as the upper work support of the patented machine to limit the upward movement of the lower work support 11, the projecting edge of the shoe sole being held between the two work supports. The jaws 15 and 16 are, however, so arranged that the feeding movement of the point of the tool while in engagement with the work isdetermined by the width of they opening between the jaws, the tool being adjusted at the beginning of its feeding movement by Contact with the adjustable jaw 16, and being again adjusted at. the completion of its feeding movement by contact with the stationary jaw 15 unless it has been previously adjusted by the resistance offered by the work to the lateral feeding movementv of the tool, and

the roll 10` on the tool stock broughtinto engagement with the projection 9' on the pressure lever. Y l ,j

Briefly described, fthe operation of the machine is as follows -Starting with the indenting tool in its lowest position and in its extreme position at the left as viewed in Fig. 1, with the roll 1() in contact with the projection 9 of the pressure lever, the pressure lever is raised and the lifting lever Yis depressed. The tool carrying lever 4 is thus oscillated to raise the tool from the work. Thile the tool is in its raised position the feed slide 8 is moved to the right and then the lifting lever is raised to release the tool carrying lever 4. The spring 6 then acts upon the lever 4 to press the tool yieldingly against the work and the feed slide 8 is moved back and forth short distances. During these movements of the feed slide the side of the tool near its point engages the jaw 16 and the tool stock is moved about the pivot stud 3, the tool being thereby adjusted at the beginning of its feeding movement, so that it stands in an,inclined position. The pressure lever is then depressed and acts upon the lever 4 to force the indenting tool into the work, the lower work support in the meantime having been raised a short distance and positively locked against downward movement. The lower work support is then unlocked and the feed slide is moved-toward the left to impart a feeding movement to the tool, the work being yieldingly clamped between the lower and upper work supports during the feeding movement. j The resistance offered by the work to the tool during its feeding movement may be sufficient to turn the too-1 stock about the stud 3 until the roll 10 contacts with the projection 9 on the pressure lever, in which casethetool will beadj usted before it completes its feeding movement. If the resistance offered by the work to the tool is not sufficient to adjust the tool, such adjustment will .be `effected at the end of the feeding movement by the engagement of the side of the tool with the fixed jaw 15 of the work support. In either' case it will be seen that theextent of the feeding movement of the point of the tool will depend upon the width of the opening between the jaws of the work support and that the tool can be caused to make indentations at any desired distance apart by merely adjusting the jaw 16. The extent of the feeding movements imparted to the work can thus be varied as desired without adjusting the mechanism for actuating the feeding slide 8, and the indentations ycan be spaced any desired distance apart less than the total distance through which the feed slide is moved. As the projecting edge of the shoe sole is fed beneath the indenting tool thev work can lbe turned by the operator so that the indentations extend at Vright angles to the edge of the sole and present the proper appearance at all portions of the shoe, the toe portion of the shoe being indented in as satisfactory a manner as the other portions.

-While the work support provided with jaws relatively adjustable toward and from each other above described is primarily in.- tended to adapt a stitch separating and indenting machine for operation as an imitation stitch machine, it will be apparent to those skilled in the art that this work support can also be advantageously used in the machine when used for separating and indenting the stitches of a finished seam as in such case the width of the opening between the jaws can be adjusted to correspond to the lateral movements which are imparted to the point of the 'tool and an interchange of work supports provided with openings of different widths avoided when seams having stitches of different length are to be operated upon.

The nature and scope of the invention having thus been indicated and the preferred embodiment of the invention having been specifically described, what is claimed as new, is:

1. A machine for making imitation stitches, having, in combination, a tool carrier, an automatically-adjustable indenting tool mounted thereon, means including the tool carrier for actuating the tool to indent and feed the work, and means independent of the work acting automatically to move the tool on its carrier and thereby adjust the tool to regulate the extent of the feeding movements :imparted to the tool, substantially as described.

2. A machine for making imitation stitches, having, in combination, an automatically adj-ustable indenting tool, means for actuating the tool to indent and feed the Work, and means for regulating the extent ofthe feeding movements imparted to the n tool comprising a stop located at one side of the pointY of lthe -tool and arranged to engage and adjust the tool at the beginning of its feeding movement, substantially as described.

3. A machine for making imitation stitches,`having, in combination, an automatically adjustable indenting tool, means for actuating the tool to indent and feed the Work, a stop located at one side of the point of the tool arranged to engage and adjust the tool at the beginning of its feeding movement, and a stop located at the opposite side-of the point of the tool arranged to engage and adj ust the tool at the completion Y of its feeding movement, substantially as de- 'ically'adjustable indenting tool, means for actuating the tool to indent and feed the Work, and stops relatively adjustable to- Ward and from each other located on opposite sides of the tool and arranged to engage and adj ust-the tool at each end of its feeding movement, substantially as described.

6. A machine for making imitation stitches, having, in combination, an automatically adjustable indenting tool, means for actuating the tool to indent and feed the Work, a lower Work support, an upper work support provided with jaws relatively adjustable toward and from each other located on opposite sides of the point of the tool and arranged to engage and adjust the tool at each end of its feeding movement, substantially as described.

7. An upper Work support for a sole indenting machine, comprising aWs relatively adjustable toward and from each other and adapted to extend over the work on opposite sides of an indenting tool, substantially as described.

8. A machine for making imitation stitches, having in combination, an automatically adjustable indenting tool, mechanism for actuating the tool to indent and feed the work, and an adjustable stop arranged to engage and move the tool with relation to its actuating mechanism to adjust the tool at the beginning of its feeding movement, substantially as described.

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

JOHN B. lHi-XDAVVAY. Titnesses z FRED O. FISH, ALFRED H. HILDRETII.