US1439944A - Guide for sewing machines - Google Patents

Description

De.z6,1922. 1,439,944

y J. E. CHALMAN.

GUIDE FOR SEWING MACHINES.

.FILED DEC. 2l, 1917, 3 SHEETS-SHEET l 1,439,944 J. E. CHALMAN. GUIDE FoR SEWING MACHINES.

FlLEn nEc. 2l 1917. 3 SHEETS-SHEET 2 a @2, .Ze/'C996 Z6 I Patented Dec. 2id; i922.

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tissen- JOHN E. CI-IAIMAN; OF CHICAGO, ILLINOlS. ASSGNOB TO UNION PECIAL MACHINE COMPANY, OF CHCAGO,'ILL1\TOS, A CORPORATION 0F ILLINOIS. i

GUIDE FOR SEWING I/IACHXNES.

Application filed. December 21, 1917. Serial No. 208,278.

5 illinois,A have invented certain new and useful improvements in `Guides forSewing Machimes, of which the following is a description, reference being had to the accompanying drawing and to the `figures of reference marked thereon.

The invention relates to new and useful improvements in guides for sewing machines and more particularly to a guide which may be used for overlapping the fabric sections and directing the same to a stitch forming mechanism. l

In the stitching of heavy materials such as for tents or the like, it is desirable that the large and extensive parts of the tents pass `the stitchingmechanism outside of the line of feed, while the smaller parts which are beingjoined tothe larger parts, pass beneath the overhanging arm of the machine or inside the line of feed. lt is also desirable that the sections being stitched overlap each other in a certain desired relation; sometimes the inner or smaller section should overlap the outer or extensive section,lwhile in other instances, the smaller section should underlie the outer or extensive section, as the parts are stitched. y i

tn object. of the presentinvention is to provide a guiding mechanisml for overlapping fabric sections which are to be stitched, which guiding mechanism may be quickly reversed so that the inner section may be caused to overlie theouter section or underlie the outer section as the operator desires. further` object of the invention is to provide a guiding mechanism of ltheabove character wherein the parts are adjustable so that one section may be caused to overlap the other section to a greater or less eirtent and the edges of both sections may be shifted transversely of the line of feed for varying their position relative to the needles which stitch the sections together.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed.

ln the drawings, which show by way of illustration, one embodiment of the inventona''- i i i f i i .Figure 1 is a front view of a. portion of a sewing machine having my improved mechanism applied thereto; Fig. is a view partly in plan and partly in section, with the fabric sections broken away toshow the relation of the presser foot and the 'sewing mechanism to the strip guiding and feeding mechanism;

F ig. 8 is a sectional view along the line of feed7 but showing the guiding device in end elevation;

F ig. 4t is a perspective view or" my iinproved guiding device and the supporting plate therefor; ,l

5 is a sectional view `on the line 5-5 of Figure 2, but with the fabric in position for guiding;

.F ig. 6 is a plan view of the guiding device and supporting plate therefor showing the guidin,` device reversed from the posi- C7 tion shown in 2;

Fig. 7 is a diagrammatic view, showing the fabric sections overlapped by the guide when positioned as shown in `Fig. 5.;

Fig. 8 is a similar view but showing the fabric sections as overlapped. when the guide is positioned as shown in Fig. 6.

l have shown my improved guiding mechanism as applied to a sewing machine having a work support 1, an overhanging arm 2. in which a needle bar 3 reciprocates.

lvlounted on the needle bail are two spaced needles land 5. (lo-operating withthe needie 4t beneath the worksupport is a looper y 6. (lo-operating with the needle 5 is a vlooper 7. rlhe material is held on the work support `by a presser foot 8, carriedby a presser bar 9 supported by the overhanging arm 2. rlhe material is fed across the work support by a feed dog 10 mounted on a feed `is fixed to a post 18 whichlextends through the plate 12 and an opening 19 in the work support 2. A spring 20surrounds this post and bears at its `upper end ragainst the plate 12. The lowery end of the spring bears against a washer 21 which isvheld to the post' 18 by a headed screw The purposeof Crt CIT

this spring is to yieldingly press the guiding member against the plate l2. #ruiding member l? has an oif'erlianging `ledge 23 thus forming a guiding recess which is adapted to receive'tlie 'fabric section which is guided therebyto the stitching' mechanism. rlhe vertical end wall 25 guides the edge of the fabric section. Mounted on'tlie overhanging ledge 22) is plate 26 which is `pro-V vided with an. upturned wall 27. This upshown in Fig. 5, said pin is adapted to engage an opening 30 in said plate. rllhis pin serves to hold the guiding` member in lposition for directing the fabric sections.

The materials being stitched consist of an outer section M which may `he the large eX- tensive section of a tent or the lil-re, and an inner section' Ni, which may be a smaller,` strip which is to be stitched to this outer` section, ln some instances it desirable to causethe strip lli, to overlap the outer section M, as shown inFig. 7. For this purpose, the guide isset as shown in Figs. i, 2, 3 and `5, and `as the fabric sect-ions pass through the guide they will be overlapped in the manner stated. In Figs. 7 and S of the drawings, I have shown at N and N the lines of-stitching formed by the needles l andl 5 respectively. The needles are widely spaced and the guides will set so that the lines of stitching pass through the fabric sections adjacent the extremes of the overlapped' portions. Itis sometimes desirable to cause the strip M passing underneath the `overhanging arm to underlie the outer or extensive section M. For this purpose the opcratoririerely lifts the guiding member 1T,

freeing the pin 48 ,from the opening 29 and. turns the saine about the post 1.8 as a pivot, until the pin [i8 is brought into register with the opening It is then released and the spring will cause said pin to engage the openinfr and hold the guide in this position. The section M is then guided by the vertical wall 2i', while the section M yis then guided by the vertical wall 25.

p' By shifting the plate l2 laterally through vlooseiriing the screws l5 and 16, the position of the guiding wall 25 relative to the needles may be varied. After this wall has'been properly setto cause the needle to pass at the desired distance backfrom the edge of the underlying strip then the plate 26 may 's id guiding member for guiding a section in overlapped relation to the section passing lapping fabric sections which may be adjusted so as to shift the positions of the overlapped sections or vary the extent 'of the overlap and which guiding means can also be quickly shifted so as to cause either section desired to overlap the other section.

it is obvious that minor changes in thel details of construction and arrangement of yparts may be made without departing from 'the spirit f the invention as set forth in the appended claims. 1

Having thus described my invention, what i claim as new and desire to secure by Letters Patent, is 1- 1. A'. guiding device for'overlapping fabric sections including in combination, a supporting plate, guiding walls for directing the respective fabric sections in overlapped relation toeach other, and means for permitting the guiding walls to be shifted s0 as to cause either section t0 overlap the other.

guidingdevice for overlapping fabric sections including in combination, a support- `ing plate, a guiding member having a guidv ing` 'wall for one ofthe fabric sections, means for pivotally supporting said guiding member ou said plate, for permitting the same to be shifted to cause its guiding wall to face in either direction longitudinally of the t, and a second. guiding' wall carried by along the first namedguiding wall. i

3. i guiding device for overlapping fabric sections, including in' combination, a supporting plate, a guiding member having guiding walls fordirecting fabric sections in overlapped relation to "each other,

a depending post on which said guiding member is mounted` said depending post extending downwardly through said plate,

a spring surrounding said post and yieldingly pressing said guiding member against the plate, said plate having openings formed tliereinvon opposite sides of said supporting post, said guiding member having a piu adaptedl to engage either opening whereby the guidiiwj,device may be caused Vto face in either direction longitudinally of said plate.

ll. guiding device for overlapping fabric sections, `including in. combination, a supporting plate, a guiding member having a 'guiding recess, a depending post on which ino y iio i ,aegee-fi said siujlporting post, said guiding member having a pin adapted to engage either open lng wherelg y the guiding :recess may `be caused to face in either direction longitudinally of said plate, a plate having a vertical wall for directing the edge of a. section in overlapped relation to the section passing through the guiding member7 said plate being secured to said guiding member and shiftable therewith.

A guiding device for overlapping fabric sections including in combination, a supporting plate, a guiding member having guiding walls for directing fabric sections in overlapped relation to each other, adepending post on which said guiding member is mounted, said depending post extending downwardly through said plate, a spring surrounding said post and yieldingly pressing said guiding member against the plate, said plate having openings formed therein on opposite sides of said supporting post., said guiding member having a pin adapted to engage either opening whereby the guid ing device may be caused to face in either direction longitudinally of said plate, and means whereby said plate may be attached to the work support of a sewing machine so that said plate may be adjusted in a direc'- ton at right angles to the line of feed.y

(3. guiding device for overlapping fabric sections, including in combination, a supporting plate, a guiding member havinga guiding recess, a depending post on which said guiding member is mounted, said depending post extending downwardly through said plate, a spring surrounding said post and yieldingly pressing said guiding membei' against the plate, said plate having oliienings formed therein on opposite sides of said supporting post7 said guiding inemn bei' having a pin adapted to engage either opening whereby the guiding recess may be caused to face in either direction longitudinally of said plate, and means whereby said plate may be attached to the work support of a sewing machine so that said plate may be adjusted in a direction at right angles to the line of feed, a plate adjustably secured' to the guidingmember whereby the same may be shifted in a direction at right angles te the line of feed of the sewing machine, said plate having an upturned edge for diresting the overlapping fabric edge passing through the guiding device.

7. A. sewing machine guide for overlapping fabric sections including in combination a guiding device having a recess for re ceiving and guiding the edge of one fabric sectione a second guiding device attached to the rst named guiding device and having a wall for guiding the edge of a second fabric section in overlapping relation to the edge of the iirst mentioned section, and means for permitting said guiding devices to be shifted so to cause either section to overlap the other.

ln testimony whereof, l aflix my signature, in the presence of two witnesses.

JOHN E. CHALMAN.

llilitnesses WILLiAM J. KAY, S. GEORGE TATE.

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