US3203383A

US3203383A - Combination shirring foot

Info

Publication number: US3203383A
Application number: US323812A
Authority: US
Inventors: Micale Angelo
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-11-14
Filing date: 1963-11-14
Publication date: 1965-08-31
Anticipated expiration: 1982-08-31

Description

Aug. 31, 1965 A. MICALE COMBINATION SHIRRING FOOT Filed NOV. 14, 1963 Fla. 6

INVENTOR ANGELO M/CAL E ATTORNEY United States Patent 3,203,383 COMBINATION SHIRRING FOOT Angelo Micale, 995 Nassau St., North Brunswick, NJ. Filed Nov. 14, 1963, Ser. No. 323,812 4 Claims. (Cl. 112-434) This invention relates to a shirring foot for a sewing machine.

At present it is necessary to use three different shirring feet for sewing materials of different thicknesses, the shoulders on the bottom of the feet being usually 4 A3", and 1 respectively. The present foot is so constructed that it provides a shoulder which is adjustable as to height, to accommodate materials of different thicknesses.

At resent there is, for decorative effect, some shirring of goods in which a cord runs through a hem, for which work a different shirring foot must be provided not only for goods of different thicknesses but also for accomdation of the cord on the left or right side. With the present invention, a right or left shirring block may be substituted for the more usual block and each of these is adjustable for materials of different thicknesses.

The present invention, by using 3 different shirring blocks in the foot, does the work of 9 shirring feet heretofore necessary.

The drawings illustrate the invention, and in these:

FIG. 1 is a plan view of the foot without the shirring block;

FIG. 2 is a view of the left end of FIG. 1;

FIG. 3 is a View of the right end of FIG. 1;

FIG. 4 is a bottom plan of the foot, the shank being broken off;

FIG. 5 is a side elevation of the foot and of the parts to which it is attached;

FIG. 6 is a Vertical section in line 6-6 of FIG. 5;

FIG. 7 is a vertical section on line 77 of FIG. 5;

FIG. 8 is a vertical longitudinal section on line 8-8 of FIG. 4;

FIGS. 9, 10, 11 and 12 are respectively plan, front, rear and side views of the shirring block, FIG. being the view when the left end of FIG. 9 is turned 90 forward out of the plane of the paper and FIG. 11 the view when the right end of FIG. 9 is turned forward 90;

FIGS. 13 and 14 are bottom plan views of cording blocks with right and left grooves respectively; and

FIGS. 15 and 16 are sections taken respectively on lines 1515 of FIG. 13 and 16--16 of FIG. 14.

Referring to the drawings for a detailed description, the foot comprises a block A, a shirring block B set in the fore part of block A and adjustable vertically therein, and a cylindrical shank C extending backwardly from the rear or heel portion of block A whereby the foot may be adjusted forwardly and backwardly to regulate the degree of shirring and may be adjusted angularly so that its bottom is parallel to the feeder of a sewing machine, such latter adjustment avoiding the cutting of thin cloth which occurs when the bottom of the foot is at a side angle to the feeder, i.e., not parallel with the feeder sidewise.

The block A, which is shown in FIGS. 1, 2 and 3 without the shirring block B, is oblong in outline but has its two rear corners chamfered. Although in one piece, it may be said to have

sides

20 and 21, bevelled or chamfered

surfaces

23 and 24, and a back 25. A little back of the curved front edges of the sides, the latter are joined by a bridge 27. The bridge, which extends downwardly between the sides, from the upper edges thereof, is not as thick as the sides are deep; its thickness being shown in FIG. 2. Back of the rear edge of said bridge, the block A is hollowed out, leaving a partial bottom 29. This bottorn has a central slot 31 which is elongate in the direction of the longitudinal axis of the block and is part of the needle track. In hollowing out the block, the upper portion of the rear part of side 29, and also part of the bevel 24, are cut away to provide a sidewise entrance of the needle to a position over the needle track 31.

The shirring block B is set into the front of block A, under the bridge 27 and between the sides thereof. It has a flat bottom 33 and a convex front 34, and may be said to comprise (FIG. 9) three sections, viz., a rear section 36, a middle section 37, and a front section 38. When the block B is in place, it normally extends a little below the bottom of block A, as in FIG. 5, with the rear edge 39 of section 36 contacting the edge of the bottom 29 of block A. The upper surfaces of section 36 and of bottom 29 are coplanar. Section 36 has a slot 40 extending forwardly from its rear edge and is in alignment with slot 31 in the bottom of block A, and is a continuation of slot 31 and forms part of the needle track. The middle section 31 is deeper than the rear section 36 and its upper surface is under the bridge 27. The section 38 of block B is in contact with the front of the bridge and extends above the latter, and is divided vertically by a slot 43 which extends downwardly from its upper end and which is enlarged at its front portion, forming a shoulder 45. The inner and narrower portion of slot 43 fits over the screw 46 while the head of the latter presses against the shoulder 45, holding the shirring block B to block A, as screw 46 is threaded into hole 47 (FIG. 1) in the front of the bridge 27.

To regulate the vertical position of block B relative to block A, and also to aid in holding the former to the latter, a vertical screw 50 passes through a vertical, unthreaded hole 51 (FIG. 1) in the bridge 27 and into a threaded vertical hole 52 of section 37 of 'block B, with the head of the screw resting on the bridge. The farther the screw 50 is threaded into hole 52, the higher block B is raised with reference to block A, and the more it is unthreaded the lower block B is positioned. Thus the foot is adapted for shirring goods of different thicknesses. To lock the regulating screw 50, a set screw 55 (FIG. 5) is threaded into aperture 56 (FIG. 1) of side 20 of block A, and the screw 46 (FIG. 8) also presses against screw 50.

FIGS. 13-17 show blocks for shirring goods having a cord passing through a hem, and are substituted for block B when necessary. FIGS. 13 and 15 show block 58 and FIGS. 14 and 16 show block 59. These blocks are similar to shirring block B except that they have longitudinal grooves in their bottoms for the accommodation of a cord, and are similar to each other except that one has a left hand groove 60 and the other a right hand groove 61.

To regulate the degree of shirring, the shank C may be adjusted lengthwise in a clamp 65 (FIG. 5) which is vertically adjustable relative to the foot bar 66 to which it is connected by a screw 67. The lengthwise adjustability of the shank enables a variation in the distance between the needle and the shirring block, which is what determines the degree of shining, and the angular adjustment of the shank enables the foot to be positioned parallel to the feeder in a sidewise direction to avoid cutting the goods.

What is claimed is:

1. A shirring foot having a fiat bottomed heel and having a vertical needle track through the heel, the needle track being elongate in the front-rear direction, the foot comprising a shirring block removably set in its fore part and having a bottom which is at a lower level than the bottom of the heel and being relatively movable upwardly and downwardly so that its bottom may be at a selected level below the bottom of the heel.

2. A shirring foot having a flat bottomed heel and hav ing a vertical needle track through the heel, the needle track being elongate in the front-rear direction, the foot comprising a shirring block removably set in its fore part and having a bottom which is at a lower level than the bottom of the heel and being relatively movable upwardly and downwardly so that its bottom may be at a selected level below the bottom of the heel, and a screw for regulating the level of the shining block.

3. A shirring foot having a fiat bottomed heel and having a vertical needle track through the heel, the needle track being elongate in the front-rear direction, the foot comprising a shirring block rem ovably set in its fore part and having a bottom which is at a lower level than the bottom of the heel and being relatively movable upwardly and downwardly so that its bottom may be at a selected level below the bottom of the heel, the foot also comprising a cylindrical shank extending rearwardly from the heel to provide for forward-backward and for angular adjust- References Cited by the Examiner UNITED STATES PATENTS 124,853 3/72 Peterson l12134 962,021 6/10 Graydon 112139 X 1,145,645 7/15 Woodward 112-134 1,487,421 3 /24 Witkus 112-240 2,003,665 6/35 Karle 112134 X 2,900,942 8/59 Mendles 1l2235 ROBERT V. SLOAN, Primary Examiner.

Claims

1. A SHIRRING FOOT HAVING A FLAT BOTTOMED HEEL AND HAVING A VERTICAL NEEDLE TRACK THROUGH THE HEEL, THE NEEDLE TRACK BEING ELONGATED IN THE FRONT-REAR DIRECTION, THE FOOT COMPRISING A SHIRRING BLOCK REMOVABLY SET IN ITS FORE PART AND HAVING A BOTTOM WHICH IS AT A LOWER LEVEL THAN THE