US1137122A - Sewing-machine. - Google Patents

Description

,l R DASHER.

SEWING MACHINE.

m l W APPLICAUON FILED MAR' 3 912' llz- Y 9 11|. w Apr. 27, 5 SHEETSSHEET .ANN

j Wife/WW Patented Apr. 27, 1915.

5 SHEETS-SHEET 2- I.'R. DASHER.

SEWING MACHINE. APPLICATION FILED MAR. I3. I9Iz.

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SEWING MACHINE.

APPLICATION FILED MAR. I3. 1912.

'Patented Apr. 27, 1915.

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SEWING MACHINE.

APPLICATION FILED MAR.13. 1912.

Patented Apr. 27, 1915.

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SEWING MACHINE. APPLlcATloN FILED MAR. i3, 1912.

Patented Apr. 27, 1915.

' 5 SHEETS--SHEET 5 Q Q f M lu f ATTORNEY ISIDOR R. DASHEJR., 0F NEW YORK, N. Y., ASSIGNOR TO LEICESTER THEODOIRE BERN- STEIN, OF NEW YORK, N. Y.

SEWING-MACHIN E.

Specification of Letters Patent.

Patented Apr. 2"?, 1915.

T0 all whom t may concern Be it known that l ISIDOR R. DAsHER, a citizen of the United tates, and a resident of the borough of Brooklyn, of the city of New York, 1n the county of Queens and State of New York, have invented certain new and useful Improvements in Sewing- Machines, of which the following is a specitication..

rllhis invention relates to machines forsewing hooks and the like to fabrics and has for its principal object to provide a machine of this character whereby the 'hook or the like may be .quickly and firmly sewed on to thematerial.

Still further objects will appear from the detailed. description and will be particularly pointed out in the claims.

ln the drawing illustrating this invention; Figure l is an elevation partly in section of my improved machine; Fig. 2 is a plan view illustrating a mechanism for feeding the hooks and a part of the mechanism whereby the presser bar can `be actuated by the knee, the over-hanging arm of the machine being indicated in broken lines Fig. 3 is an end view of the'machine adjacent to the needle bar and shown partly 1n y section; Fig. 4 is a section taken on line lto 4--1 of Fig. l looking in the direction of the arrows; Fig. 5 is an enlarged Sectional detail taken along line 7--7 of Fig; 6, illustrating the mechanism for engaging the hook and for holding the latter in position while it is being sewed on to the material, the parts being shownin ythe position the hook assumes when the loop is sewed on to ,the neck or shank of the hook; Fig. 6 is a plan view, partly in section, of the structure shown in Fig. 5,; Fig. 7 is an end view of the structure shown in Fig. 5; Fig. 8 is a sectional detail corresponding to that shown in Fig. 5 and illustrating the hook engaging mechanism in the position'the hook assumes when the loop is being formed adjacent to the eyelets of the hook; Fig. 9 is a section taken along lines 11-11 of Fig. 5; Fig. 10 is an enlarged sectional detail showing the hook engaging and holding mechanism raised, together with the presserbar, in the position it assumes previous to the introduction of the fabric in position to receive the hook to be sewed thereto; Fig. 11 is a section taken along lines 13-13 of Fig. 5; Fig.A 12"is a section taken along lines 14-14 of Fig. 8; Fig. 13 is a sectional detail illustrating the end of the chute and the position of the needle relative to the positioning tongue, with the rest of the mechanism broken away. In this position of partsthe hooks are dispensed with and the machine may be used for the purpose of forming an eye on the material. Fig. 14 1s a section taken along lines 16-16 of Fig. 13 and serving to illustrate the manner in which the loop is sewed about the tongue so .as to form the eye; Fig. 15 is a detail of the guide which guides the end of thechute as it reciprocates.

The numeral 1 designates the over-hanging arm of the sewing machine having the usual needle shaft 2 driven by a pulle 3. Needle-bar 4 is driven from the sha 2 through the usual familiar connections which are not necessary to be illustrated in detail. Connecting rod 5 operated by the crank 6 of the needle shaft drives, through crank 7, shaft 8, -to which any approved type shuttle or rotary bobbin mechanism may be attached as designated at 9. rlhis coperates with needle mechanism to sew a lock-stitch on to the material to be operated upon.

I will now proceed to describe the mechanism whereby a hook may be sewed on to the fabric.

The numeral 10 designates a hopper mounted on a post 10u slidably supported on the bed of the machine. In this hopper are placed a 'plurality of hooks which are adapted to be fed one by one down a chute 11 and positioned over the fabric 12 and sewed thereto. As a hook slides down the chute it is stopped by a pair of stops 13 pivotally mounted at the bottom end of the chute. These stops have internally projecting arms 1.4 which are adapted to engage with the bent portion 16 of the hook. The free end of the arms 14 are normally located so as to stop the hook in the proper position to be operated upon as can be seen from an inspection of Fig. 6. Hair springs 2O fastened to the chute, as by screws 21, engage the pivoted stops so as to hold them 1n the normal position where they can engage the bent portion of the hook, but these stops can be swung outward when the hook together'with the material is pulled out as will clearly appear from Figs. 5 and 6.

It will be noted that the construction Just described serves to stop the hook in one of aol the longitudinal positions which the hook mustoccupy while it is being secured to the fabric whlch is supported on the horizontal support that reciprocates transversely relative to the direction in which the hook extends when the latter is being secured to the fabric.

To positively hold the hook in posltionv while it is being operated upon, I provide hook engaging or hook holding means illustrated in detail inFigs. 9 to 12. This hook engaging or hook holding means cooperat-v ing with a tongue 21 projecting from the end of the chute and upon which the hook rests, serves to maintain the hook in the proper position for it to be sewed on to the material. In Fig. 10 said means is shown in the position it assumes when the fabric is to be introduced. In Fig. 5 said hook engaging or hook holding means is shown in the first operative position when the first loop is sewed on to the shank of the hook. This positioning `means comprises a frame 23 made fast to the end of the chute which in turn is secured, as by the screws 89a, to the reciprocating slide or work support 39 whose function will subsequently be described. Mounted in this frame is a pin 24 which is pressed downward by spring 25 abutting at its upward end against the top 26 of the frame and transmitting the pressure to pin 24 through a projection 27 formed on the side of the pin. This pin has a reduced neck projecting through an aperture in a sliding bar 29. The lower end of this in terminates in a head 28 having an inclined wedge shaped portion 28Et which is adapted to engage the bent portion at the right hand end of the hook as is clearly shown in Figs. 5, 6, 8, 11 and 12. The slide 29 is mounted to reciprocate on` a guide l31 rigidly connected with a movable presser foot 32 mounted on the presserbar 22 and pressed inward or to the right by a spring 33. Projecting downwardly from the slide 29 is formed a lug 29a adapted to press down upon the material and also a wedge shaped member 34, the thin end of which, is adapted to engage with the left hand end of the hook adjacent to the eyes 16a. The hook is thus held firmly between wedges 34 and 28a. The vertical inclination of wedge 28a together with the pressure exerted by spring 25 insure a snug fit and afford a yielding clamping action which can accommodate itself to-small variations in the size of hook. It will be understood from the foregoing that when a hook has been fed `down to av position such as lshown in Fig. 5 and the hook engaging or holding means is in the position shown in Fig. 10, the material `12 is introduced under the tongue 21 and the presser-bar 22 lowered in the ordinary manner as by lever 4a (Fig. i

3). The needle will then be in position to sew a loop around the shank of the hook as slide 39, above referred to, which is operated-r from the needle shaft through gears 35 and 36 connecting rod 37, lever arm 37, shaft 37b and lever arm 38. Upon this reciprocating slide 39 rests the fabric and to this slide the fabric is clamped by the presserbar which acts to press against the fabric the slide 29 that is on the presser foot. For every stitch of the needle, therefore, the hook together with the fabric is moved from one side to the other, so that a loop composed of several strandsof thread may be formed, such as illustrated in Fig. 14. After the loop is so formed, I contemplate slipping it over on the shank of the hook so as to place it adjacent to the bend 16 and then to form another loop through the eyes 16 and thus firmly secure the hook to the fabric. In order to accomplish this result it is necessary to push the fabric to the right so as to slip the loop along the shank of the hook. Also it is necessary to push the hook to the right in order to'bring the eyes 1G in alinement with the needle. I therefore provide a construction which permits the hook to be pushed to the right when the`hook enga ging means and presser-foot, to which the latter is connected, are raised, thus releasing the fabric. When the fabric is thus released it is manually pushed forward to the right farther than the hook, in order to obtain suiicient relative movement between them, and in a manner so as to slip the loop to the right along the shank adjacent to the bent portion 16. For this purpose I have arranged means whereby the presser-bar may be raised from the fabric sufficiently so as to allow the movement of the fabric relative to the hook and still keep the hook engaged by the head 28 at the-lower end of the pin 24, which pin and head constitute a part of the hook engaging mechanism. The mechanism for accomplishing this comprises a connection whereby the presser-bar may be raised partially and then lowered. During this operation of raising and lowering, the hook may be manually moved to the right sufficiently so as to bring the eyes in alinement with `the needle and at the same time the fabric may be moved manually still farther to the right so as to obtain suicient mamma M relative movement for the purpose of slipping the loop up the shank of the hook adjacent tothe bend. rlhe foot 32 which is loosely connected by the screw 132 to the presser bar 32 has a lateral projection 40 which is adapted to ride on each side of a wedge 41, mounted on a stationary arm 42, made fast to the bed of the machine. As the connections'between the bar and the resser foot is comparatively loose it permits the presser-foot to swing on the screw 132 as a pivot, so to speak, in a manner to allow the tree end of the presser-foot to move to the right and to the left. Journaled also on this stationary arm 42 is a pin 43 which is normally held by a spring 44 in the position shown in Fig. 5. A small wedge is eccentrically mounted on, or rigidly with, this pin 43 and projects into the path of the movement of the projection 40 on the presser foot as the latter is moved up and down by the raising and the lowerin of the presserbar. The spring 33 normal y tends to press the foot 32 to the right so that when the foot is raised only sutliciently for the projection 40 to clear the apex of the wed e 41., the foot will be actuated to the rig t by means of the spring 33, Figs. 5 and 8. If the presser-bar is then lowered the foot 32 will then be forced still farther to the right by reason of the engagement of the projection 40 with the right side of the wedge 41. This is the movement which takes place when the presser-foot is moved from its position in. Figs. 5 and 11, to the position shown in Figs. 8 and 12. If, however, it is desired to cause the presser-'foot to occupy the position shown in Figs. 5 andll, namely,

initial position the presser-bar is raised far-A ther than when it is desired cause the presser foot to move to the right so as to assume the position shown in Figs. 8 and 12. ln other words, when it is desired to move the presserfoot to the initial position the presser-bar .i is raised suiliciently to cause the projection 40 to clear the vertex of the projection or wedge 45 on the pin 43. As the presser-bar is raised past the wedge 45 it is forced slightly to the right by said wedge 45 which it will be noted is pivotally mounted. l"When the wedge 45 has been disengaged due to the upward movement then the compression spring 46 and member 24 can coperate to force the presser-foot to the left so that as the presser-bar is lowered, the presser-foot will engage the left surface of thewedge 45, slide downwardly along the same and thence drop upon and slidealong the left face of the wedge 41. The spring 33 forces the presser-foot to the right against the left face of the wedge 41 and s the presser-foot descends it moves toward its initial position..

From the above it will be apparent lthat by first raising the presserbar only a art. of the distance which it 1s capab e o being raised and then lowering the same that the presser-foot will be moved from the left to the right position and by rasing the presserbar a greater amount and then lowering that the presser-toot will be caused to assume its extreme left or initial position. ln making this last movement the projection 40 will move upward on the right hand side of the wedge 45 which is on the pin 43, thence to the left above said wedge 45, and finally down along the left hand side of said wedge 45 to the left hand side of the stationary wedge 41. rlhe wedge 45 is on the pivoted or j ournaled member 43 so that as projection 40 on the presser-foot moves downwardly along the wedge 45, the lower portionfof the latter can swing adjacent to the wedge 41, whereby said projection 40 on the presserfoot will not be forced suddenl to the right any great distance in passing rom engagement with the wedge 45 to the left face of the wedge 41. In this manner a hook is sewed on to the fabric with two loops, one adjacent to its bent portion and the other through the eyes. When the 'sewing operation is completed the presser bar is raised to its extreme upward position (Fig. 10) and the material, together with the hook, is pulled toward the left, thus disengaging the hook from the stops 13 and pulling the loops oft' from the tongue 2l. The material may then be replaced in a new position and another hook sewed.

llt is necessar that the hooks'be fed down one by one an at the proper time, so that each hook may slide into position shown in Fig. 5 with the eyes towardv the lower delivery end of the chute before being engaged by the positionin means. |This feeding into the chute may e done by hand but in Figs. 1 and 2 a hopper has been'indicated by the reference character 10 andthis hopper may be provided with any suitable feeding mechanism such as is indicatedin said gures by reference characters 51, 52, 53, 53a, 54,55, 5e, 57, 58, 59 and 6o. as, however, this particular feeding mechanism is not the subject of the present invention, and as any suitable feeding mechanism might be employed, further description thereof at this time is deemed unnecessary. Normally the/ location of the hook engaging mechanism and they presser bar is brought about by partially raising the presser-bar controlling lever 4a. The hook engaging mechanism andthe presser bar can, however, be operated by the knee by pressing on the bell crank lever which in turn actuates through the pin 59, the cam-shaped arm 58, the lever 57 and the link 56, the presser-foot operating lever 61 that is pivoted at 62 and the feeding device is operated only when the presser-bar is in raised position as shown in Fig. 10. The pin and slot connection 63-65 permits the raising of thepresser-bar by the presserllllll bar operating lever i Without transmitting the motion to lever 51.

When it is desired to form an eye with loops of thread the hooks are removed from the hopper, or the feeding -of the hooks is discontinued, and the cloth is simply introduced under the tongue 21, as shown in Figsf 13 and 14. The machine is then started and the slide 39 together with fabric and tongue are reciprocated transversely -to the needle so as to form a stitch first on one side and then on the other side of the tongue and thus forming loops together constituting an eye. The eyes so formed may be used to engage with the hooks in the manner common with hook and eye fastenings.

It will thus be seen that I have provided a machine whereb hooks may be sewed onto material at two dlstinct points remote from each other, and thus insuring that they are securely held in place. It will also be clear that the same machine is also adapted to form the eyes with which the hooks may engage.

Various modifications may be made Without departing from the spirit and scope of this invention as defined in the claims.

I claim:

l. In a machine for sewing hooks, stitching mechanism including a needle-bar, a presser-bar, means for raising and lowering the presser-bar, hook engaging means connected with the presser-bar, and means cooperating with said raising and lowering means for actuating said hook engaging means to position the latter in a plurality of .longitudinal hook holdingvadjustments -by the raising and lowering of said presserbar, the machine being constructed so that it forms hook holding stitches that extend transversely to the hook.

2. In a machine for sewing hooks, stitching mechanism including a needle bar, a presser bar, means for raising and lowering the presser bar, hook engaging means connected with the presser bar, and means cooperating with said hook engaging means for actuating said hook engaging means, so that said hook engaging means will be caused to move horizontally when the presser bar is raised or lowered. V

3. In a machine for sewing hooks, a needle-bar, a presser-bar, hook engagino or holding means connected to said presser-[loan a lever for raising and lowering said presserbar, and means cooperating with said presser-bar and adapted to place said hook holding means in one position of adjustment when the presser-bar is raised to its extreme position and then lowered, and to place saidhook` holding 'means in another position of adjustment when the presser-bar is raised part way up and then lowered.

4. In a machine for sewing hooks, a needle-bar, a vertically movable presser-bar,

a hook engaging presser foot mounted on said presser-bar so that it can move longitudinally, a projection extending laterally from said presser foot, a wedge, and means for causing said projection to ride on one 0r the other side of the wedge when the Vwith a part on the movable presser foot, so

that when the presser foot 1s moved vertically it will also be caused to move horizontally.

6. In a machine for sewing hooks, a needle-bar, a presser-bar, a presser foot movably mounted on the presser-bar, hook holding means mounted on said presser foot, a pin projecting laterally from the presser foot, a stationary -wedge on the sides of which the pin is adapted to ride, and a pivoted wedge mounted above the stationary Wedge, and adapted to direct the pin so as to ride over one of the stationary wedge faces.

7. In a machine for sewing hooks, a stitching mechanism including a needle-bar, a work support below the needle-bar, said needle-bar and work support being movable relative to each other and in a direction transverse to the length of the needle-bar, means above the work support for holding the hook in position so as to permit the stitching mechanism to sew a loop around the shank of the hook between the end of the overhanging portion and the eyes when the hook is in position above the support, means for shifting the holding means so that the eyes of the hook can be held in operative relation with the stitching mechanism, said shifting means being adapted to operate to release the material so as to permit the slipping of the loop formed upon the shank into a position adjacent to the bend of the hook.

8. In a machine for sewing hooks, a stitching mechanism including a needle-bar, a work support, said needle-bar and work support being movable relative to each other and in a direction transverse to the length of the needle-bar, a presser-bar, a presser foot movably mounted on said presser-bar, hook engaging means mounted on said presser foot, and adapted to hold the hook in position while a loop is being sewed about the shank, means for raising the presser foot so as to permit the material to be shifted relative to the hook so as to slip the loop along the shank and adjacent to the bend of the hook, and means coperating with the presse;` foot for positioning the hook engaging means when being lowered from the material releasing position.

9. ln a machine for sewing hooks, a stitching mechanism comprising a needle, a feed chute, a, tongue projecting from the bottom of said chute, a presser-bar, and hook engaging means mounted on said presser-bar for holding the hook in position on said tongue, the machine also comprising means which is constructed so that there is a relative movement between the tongue and the path of the needle reciprocation.

10. lln a machine for sewing hooks, stitching mechanism including a needle-bar, a Work support, said needle-bar and work support being adapted toV reciprocate relative to cach other in a direction transverse to the length of the needle-bar, a feed chute for the hooks, a tongue projecting from the bottom of the chute and under which the material is placed, the stitching mechanism being adapted to sew a loop about the hook and tongue, hook engaging mechanism adapted to hold the lhooli in a plurality of positions above the tongue so that one yportion of the hook can be brought into operative position relative to the stitching mechanism at one time, and another portion of the hook ca'nbe brought into operative position relative to the stitching mechanism at another time, said hook engaging mechanism' being also adapted to release the material so as` to permit the loop to be moved along the hook and tongue.

11. In a machine for sewing hooks, stitching mechanism, apresser-bar, a feed chute and positioning mechanism for the hook, comprising a frame mountedv on the lower end of the chute, a spring pressed pin mounted in said frame, said pin having a wedge shaped head adapted to ,engage the hook at one end, and a wedge shaped member mounted on the presser-bar and adapted to engage the hook at the other end.

12. ln a machine of the character described, a stitching mechanism comprising a horizontal work support, an article feeding mechanism, a mechanism for holding in a plurality of horizontal positions the article to be sewed, and means for operating thefeeding mechanism and for simultaneously causing the holding mechanism to move horlzontally relative to the support.

13. lln a machine of the character described, a stitching mechanism comprising a vertically reciprocating needle bar and a horizontally extending work support, an article feeding device, mechanism for holding in a plurality of positions the article to be sewed, and means actuated by the knee of the operator for operating the holding mechanism, the stitching mechanism being 'constructed so that stitches are formed chute, a member mounted in and movable relative to said frame, said member having -a portion adapted to engage one end of the hook, the presser bar also being provided with a movable hook engaging member which coperates with the Work engaging member that is mounted in said frame on the lower end of the chute.

l5. In a machine for sewing hooks, in combination, stitching mechanism, a presser bar having mounted thereupon a movable hook engaging member, a feed chute, and holding mechanism for assisting inholding the hook in the desired position when the latter is being secured in place on the work by the stitching mechanism, said holding mechanism comprising a frame mounted on the lower end of the chute and-a hook engaging member mounted in and movable relative to the frame, the movable work engaging member which is mounted on the presser b ar being arranged to coperate with said hook engaging member that is mounted in said frame.

This specication signed and witnessed this 28th day of February, A. 11,1912.

ISIDOR R. DASHER.

Signed in the presence of- THEoDoRE R. ST. JOHN, PAULINE T. PLAME.

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