US1391876A - Strip-guide for sewing-machines - Google Patents

Description

1. BOSTON.

STRIP GUIDE FOR SEWING MACHINES.

APPLICATION FILED SEPT 4. |918- .k .QN ,W .W i. ,m6 a, RN NN MN w m m w I QI- j I D A@ www D A mn.. QN G.N\^.S .H a 1|- I||..|.. egg IIIIHHIHNNHU m\ N Nm -.-I ,MM I- m Q Q I N\ H. una...nn.un....lnnnIIulIIlnaIIII l N ,IN s.. s

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J. BOSTUN.

STRIP GUIDE FOR SEWING MACHINES.

APPLlclmoN msn SEPT 4, 191s. Y

1,391,876. l Pandsepn 27,1921.

2 SHEETS-SHEET 2- j Z0, Iv 5 2 /j 52 W /A u /2 i /0 l /5/ 51: /7 y w `1 l. 6 2 I UNITED STATES PATENT OFFICE.

JOHN BOSTON, 0F NEWARK, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, T0

THOMAS CARTER & SONS, INC.,

STRIP-GUIDE FOR Application filed September T 0 all 'whom t may concern:

Be it known that I, JOHN BOSTON, a citizen of the United States, and a resident of Newark, in the county of Essex 'and State of New Jersey, have invented certain new and useful Improvements in Strip- Guides for Sewing-Machines, of which the followinvfis a specification.

y invention relates to a gate for sewing machines and while I 'have applied the same to a hemstitching machine I desire it to be understood that the invention is suitable for all forms of sewing machines. In sewing machines, where the fabric in very long strips is fed from a pile or from a roller, as where handkerchief material is hemstitched in large quantities, it is customary to provide a guiding device to guide the fabric as it feeds from thesupply into the stitching mechanism and folder or hemmer. These devices are usually called gates and they have generally consisted o-f a structure immovably` attached tothe sewing machine or to some part of the bench. These gates usually project beyond and above the edge of the bench on which the sewing machine is mounted, and they more or less obstruct the sewing machine so that the operator has to lean over the gate and reach out to thread the needle and to attend to other arts of the sewing machine. The object o my invention is to provide a very simple and convenient gate which will swing or fold up close to the machine if the operator presses against it, so that she may approach the machine as closely as if the gate were not present. This gives the operator perfect freedom so that she can more conveniently thread `the needle or attend to any part of the machine. At the same time, the gate is not rendered inoperative when it is moved inwardly nor is the fabric displaced thereon; and when the operator moves away from the gate the latter automatically swings back into position.

In the drawings forming part of this application,

Figure l is a plan view of part of the sewing machine and the gate,

Fig- 2 is a fmt eleretoa thereof;

Specification of Letters Patent.

A CORPORATION OF NEW YORK.

SEWIN G-MACHIN ES.

Patented Sept. 27, 1921. 4, 191s. serial No. 252,526.

Fig. 3 is a sectional View through the sewing machine bench and showing the gate in end elevation,

1g. 4 is a sectional view, taken on the line of Fig. 5, and Fig. 5 is an enlarged plan view of one end of the gate. U have shown only such parts of the sewing machine as are necessary to indicate the disposition of the gate and its function of guiding the fabric. In the drawings I have shown a bench 1 on which one or more sewing machines may be mounted. At 2 I have shown the presser foot of the sewing or hemguidek which is the subject to the bench or machine support l so that it lies at the front thereof.

AtGAI have shown a pair of arms 7 pivoted to theV brackets 8 and spaced apart lengthwise of the bench a distance somewhat greater than the width of the widest fabric which is to be fed into the sewing machine. These arms, at their. outer ends, are pivoted to the lower ends of the upwardly extending supports 9, arms 7 form a portion of the supporting means for the supports 9. The arms l0, ivoted to the brackets 8 at 11 extend outwardly from the bench above the arms 7 and at their outer ends they are connected to the supports 9 by means of a bar or rod 12 on the latter, which slides in slots 13 in the arms l0.

At their' upper ends, the supports 9 are connected by a cross bar or rod 14 and below by another bar 15, so that the supports 9 and these connecting bars move as a whole and are in the nature of a frame. At the ends of the gate there are adjustable arms 16 which are pivoted to the lower,r

present invention, is preferwhereby the:v

means of bolts 17 which pass through holes in the arms 7 and through slots 18 in the arms 16 so that the pivotal points between the arms 7, and the arms 16 may be adjusted. At their upper ends the arms 16 are pivoted to the rod 12.

On the upper cross rod 14 there are collars 19 which may be secured at any desired position along the rod by the screws 20 and these collars each have a flange 21 for engaging an edge of the fabric to guide it or to prevent the fabric from shifting laterally along the rod 14 while passing over it. ln like manner, the collars 22 are adj ustably secured on a lower cross bar or rod 26, by the screws 23 and these collars have similar guiding flanges 24 adapted to prevent later-` al shifting of the fabric where it travels over the rod 26. There is a bracket 25 secured on each arm 7 near each support 9 and they are connected by a cross bar 27 lying close to and parallel with the cross bar 26.

Tn addition to theabove parts l have provided guides near the folder' which do not move with the gate, so that these `guides remain in the same position relatively to the folder plate 5 while the gate is moving. The guide 28 is nearest the bench 1 and it is adjustably held on brackets 29 bythumb screws 30. The arm 31 reaches over the left edge of the fabric in Figs. 1 and 2 so that it guides this'edge of the fabric substantially on the line of the bench top 1 and it prevents the fabric from shifting` to the left. There is a bracket 32 at the right side of the fabric and on this there is secured an arm 33 which reaches over the right edge of the fabric to guide it in relation to the folder plate.

Operation: In threading the fabric over the gate and into the machine,` the free end` is brought up cloth (not placed below the gate, and the end is passed over the bar 27 and then under the bar 26, thence in front of the bars 15 and 12 and over the bar 14. From there it is passed under the guides 33, 31 and thence over the bench 1, the right hand edge being inserted into the folder plate 5. It will be understood that the flanges 21 and 24 will be adjusted on the rods 14, 26, to engage the side edges of the fabric and guide the fabric in proper relation to the folder 5. If a wide heni is to be turned, naturally, the flanges will be placed more to the right, whereas, if a narrow hem is to be turned, they will be placed more to the left. They will be spaced apart, also, according to the width of the fabric.

The fabric will feed over and, through from the pile or bolt of the various guiding elements above referred to, assingrfromthe source of supply4 and through the folder 5, at which latter place shown), which is generally the-fabric is stitched, and the forward end of the fabric will either be allowed to drop into a pile or it will be taken up by any suitable reeling device.

ln the ordinary operation of the gate it will stand in the position shown in the drawings, so that the fabric will be guided about the same as with a. stationary gate. But if the operator approaches closely to the machine shemay press against the front of the gate and this will cause the latter to swing or fold up toward the bench. Pressure against the supports 9 or any of the cross bars carried by them, will cause the supporting arms 7, 10 to swing upwardly and toward the bench 1 and the supports 9 Vwill rise slightly and approach the bench,

the rod 12 sliding in the slots 13, thus allowing the operator to approach about as near to the bench as would bel possible if the gate were not present. As hereinbefore A set forth, the operator is thus better able to approach closely to the machine to thread the needle and to otherwise attend to the operation of the machine. When the gate thus folds or swings toward the bench, the fabric is not displaced. l/Vhen the operator withdraws from the gate the latter swings back automatically, by gravity, to the position shown in the drawings.

ft is desirable to adjust the height of the gate in relation to the folder 5 in order to feed the fabric properly whena wide hem is being turned or when a narrow hem is being turned. The adjustment of the gate may be made by loosening the bolts 17 which secure the arms 7 and 16 together and then he gate is swung upwardly on its pivots 6, 11 until the top bar 14 is at the desired height. During this adjustment the bolts 17 travel in the slots 18 of the arms 16., When the desired adjustment has been obtained, the bolts 17 are tightened, and this fixes the point of connection of the arms 7 and 16 again. With the new adjustment made, the gate will operate as before, but when it swings out or away from the bench it will stop at a different position, z'. e., it will come to rest with the bar 14 at a higher level than before the adjustment was made. The adf justrnent may be made to lower the bar 14 at any time, so that the fabric/will leave the gate at theelevation necessary. to obtain the proper angle of feeding for different folders.

It will be observed that when the gate swings toward or from the bench that the bar 14, from which the fabric finally leaves the gate, does not change its distance from the guide sufliciently to interfere with the feeding of the fabric. Thus, there is no great slack in the fabric between the bar 14 and guide 33 as the gate folds or opens, so that there is no` tendency tointerfere ywith the feeding of the fabric.' By the gate adjustable in height as well as folable or collapsible am able to obtain al1 the to swing outwardly to normal desired advantages in a folding or movable gate.

Having claim is:

l. The combination with a sewing machine and its support, of a gate for guiding the fabric to the stitching mechanism ofthe sewing machine, said gate comprising hinged supports projecting forwardly from the sewing machine, fabric guiding means carried by said hinged supports, said supports being adapted to be swung inwardly toward the sewing machine by pressure of the operators body against the front of the gate to permit the operator to approach close to the sewing machine and adapted position when pressure of the body thereon is released.y

2. The combination with a sewing machine and its support, of a gate comprising pivoted supports extendingoutwardly from ythe sewing machine and adapted to be swung inwardly toward the same by pressure of the body thereon and to swing outwardly into normal position when pressure of the body thereon is released, means carried by said supports for guiding a strip of fabric into said sewing machine, a guide described my invention, what I for the fabric interposed between said gate.

and the stitching mechanism of the sewing machine, said guiding means on the gate v moving upwardly and inwardly in relation to said latter 3. The combination with a sewingmachine and its support, of a gate comprislng a pair of upper arms and a pair of lower arms mounted to swingand projecting from y the sewing machine, upright mounted on the outer ends of said arms and adapted to swing therewith supports toward the sewing machine, and fabric guiding means carried by said upright supports.

4. The combination with a sewingmachineand its support, of a gate including upper and lower pivoted arms projectingV ing member carried by said upwardly eX-V tending support and a liiikjpivoted to the upwardly extending support at its place of connection with said upper arm and connected to said lower arm between its ends for the purpose set forth.

Signed at the city of Newark, county ofy Essex and State of New Jersey this 24th day `of July, 1918.

V'JOHN BosToN.

guide when the gate swings Vinwardly toward Vthe sewing machine.

40f pairs of y

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