US2025598A - Rib-tip attachment for sewing machines - Google Patents

Description

Dec. 24, 1935. J. LEVIN 2,025,598

RIB TIP ATTACHMENT FOR SEWING MACHINES Original Filed March 2, 193]: 2 Sheets-Sheet l INVEN TOR QM rf uw q ATTORNEY Dec. 24, 1935. J. LEVIN 2,025,598

RIB TIP ATTACHMENT FOR SEWING MACHINES Original Filed March 2, 1931 2 Sheets-Sheet 2 ATTORNEY UNITED STATES PATENT OFFICE RIB-TIP ATTACHMENT FOR SEWING MACHINES Joseph Levin,

Application March 2,

Baltimore, Md.

1931, Serial No. 519,562

Renewed June 12, 1933 41 Claims.

This invention relates to an improved rib-tip holder-attachment for sewing machines.

In the manufacture of umbrellas and parasols, it has become quite common to provide ornamental tips for the outer ends of the ribs which tips are usually formed of suitable composition material and are also provided with a socket at the attaching end to receive the end of the metal umbrella tip.

These tips are usually first attached to the umbrella or parasol covers prior to applying the covers to the frames.

In some instances, the attachment of the tips to the covers is effected by a hand-stitching operation or by wrapping a thread about the tip and cover and then tying the same.

Rib tips have also been provided with diametrically-extending holes or apertures so that a needle and thread may be passed through said apertures and the covers and also around the side of the tip to secure the latter to the cover.

Special machines have been provided for effecting the attachment of the tips to the covers by stitching but it has been found that needles are frequently broken because the operator fails to accurately place the tip in position or because the holes through the tips are not accurately located in the latter.

My invention is therefore directed to an improved attachment for sewing machines whereby the rib tips, with or without diametrically extending holes or apertures may be held in proper position with respect to the needle-bar of an ordinary button sewing machine whereby the tip may be readily attached to the cover by stitches carried by a reciprocating needle.

The invention is illustrated in the accompanying drawings, wherein,-

Fig. 1 shows the attachment in side elevation.

Fig. 2 illustrates the same in top view.

Fig. 3 shows the attachment in top view with the clamp-plate removed.

Fig. 4 illustrates the tip-holding element in top view.

Fig. 5 shows the same in side elevation. I

Fig. 6 illustrates a fragment of the cover folded about a tip in readiness for stitching but omitting machine parts.

Fig. 7 shows a portion of a sewing machine with the attachment associated therewith,the parts being illustrated in side elevation.

Fig. 8 illustrates a portion of the cover turned right side out with the tip attached thereto.

Fig. 9 shows on an enlarged scale, a portion of the attachment and the tip-holder with a tip thereon and with a fragment of an umbrella cover folded about the tip and the latter stitched to the cover,all of the parts being shown in top View, and

Fig. 10 shows oneof the tips.

Referring to the drawings, the numeral [3 designates a horizontal bar with a down-turned rear end 14 by which the same may be pivotally attached to a sewing machine as at I and at the forward end has extended therefrom a down- 10 Wardly and forwardly-extending bracket-plate I5, which will seat on the bed [6 of the sewingmachine over the throat-plate and stitching mechanism. Suitable bolts ll connect the bracket-plate with the forward end of the horil5 zontal bar [3 and, by reason of slots I 8, in the bar, permit slight back and forth adjustment of the bracket-plate on the bar to effect an accurate adjustment of the bracket-plate over the throatplate. The bar 13 and plate l5 constitute a supporting element for a tip holding means to be presently referred to.

The bracket-plate I5, is of substantially a rec- I tangular shape and is completely out out at the center forming a rectangular opening IS with a front bar 20 at the forward portion and a side bar 2! at each side.

A pin or shaft 22 extends horizontally from one side bar to the other near the rear of the cut-out or opening I9 and a block 23 is pivotally mounted on this pin or shaft 22.

This block extends forwardly in the opening l9 and is freely mounted on the pin so it may rock thereon. A coiled spring 24 is wound about the pin or shaft 22 and has one end 25, extending rearwardly and engaged in the bracket plate while its other end 26, is engaged on the side of the block 23. The tension of this spring serves to keep the forward end of the block raised but will permit said end to be depressed whenever pressure is applied on the upper side of the block.

The forward end of the block 23 carries a screwthreaded stem 21 which may be screwed into the front end of the block more or less for a purpose that will presently be explained.

The stem 27 has a shoulder or collar 28 thereon in front of its threaded portion while in front of the collar there is a work-supporting pin 29. It is therefore to be understood that the pin 29, collar 28 and stem 21 may all, be horizontally adjusted so as to project more or less in front of the block. The stem 21, shoulder 28 and pin 29 provide a tip holding means or a work receiving and supporting chuck.

Clamping jaws 30 and 3| are carried at the opposite sides of the block and extend forwardly therefrom so that the jaws will have position at opposite sides of the work-supporting pin 29.

I have found it desirable in practice to form one of the clamping jaws so it may be capable of readily yielding laterally and to this end I form the jaw 3| of a thin steel plate and then back it up with a flat spring plate 32 so that the jaw 3| and the spring plate 32 may readily yield laterally when it is desired to place the work on the pin 29. 7

It is to be understood that the device is especially designed for holding rib-tips 33 which are to be attached to the covers of umbrellas or parasols.

I One form of tip 33 is shown in Fig. 10 wherein the outer end 34 may be of any ornamental form or shape while the inner end 35 thereof is preferably tapered and has a central longitudinal socket 36 extending therein. This socket 36 is for the,

the form shown in Fig. 10, the socketed inner end of the tip would be inserted on the pin 29 until the inner end of the tip seats against the'shoulder or collar 28,the stem 21 having been adjusted longitudinally in the block to properly position the shoulder 38 of the tip.

' When the tip is in place on the holding-pin 29, the shoulder 38 of the tip should'be positioned over a cross-slot 39 in the front bar 20 of the bracket plate, which slot extends down through a the said plate directly over the stitching mechanism in the throat-plate beneath it and directly beneaththe needle 40 of the sewing machine.

My improved attachment may be used on a machine where the needle vibrates,that is, makes one stroke in one vertical plane and the next vertical stroke in another vertical plane, or, wherein the work itself is shifted and the needle strokes all made in a single vertical plane.

These mechanisms are both quite common and either is readily available.

The reason for having the block 23 pivotally mounted on the pin or shaft 22 is that when pressure on the upper side thereof is released, the block will swing up at its forward end and raise I the stem 21 and work-holding pin 29 above the plane of the front bar 29 of the bracket thereby enabling the tip'33 to be more readily attached to the pin prior to the stitching operation.

In practice, I preferably provide the upper side of the front bar 20 of the bracket-plate with a concavity M, in order that the forward end of the tip may seat down therein, during the stitching operation at which time it. is desirable to seat the cloth to which the tip is to be stitched down close against the bar 20.

Umbrella'oovers are made in sections, the number of which are determined by the number of ribs employed in the frame. The cover-sections are cut and then stitched together on radial lines. After the covers have been thus prepared, and prior to their attachment to the ribs,they are ready to receive the tips. The tips are attached to the outer edge of the cover at the end of each radial seam and prior to the attachment of the cover to the ribs, and it is at this stage in the manufacture that the present attachment is employed.

The cover 42 is first folded radially on one of the stitched seam lines 43, as shown in Fig. 9. This folding is done with what is to be the outside surface of one cover section against the outside surface of the next adjacent section, thus leaving the wrong or inner surface of the other section underneath to rest upon the cross-bar 23 of the bracket-plate.

The tip 33 having been placed on the pin 29 with the outer ornamentalend 34, over the bar 20, is now in readiness to be fitted to the cover.

The cover is now slipped over the end 34 of the tip,the latter being seated in the fold against the seam and between the two right-side faces of the cover. This leaves the socketed end 36 of the tip projecting beyond the edge 45, of the cover sections during the stitching operation.

At this moment, both the tip and the cover sections will be elevated above the bracket-plate bar 29 because the parts of the attachment will be in the normal position shown in Figs. 1 and'l, and the next thing to be done is to clamp the cover about the tip and to also seat the tip and cover down on the cross-bar 20 of the bracket plate. a

To do this, I provide a pivoted clamp-bar 46 I over the horizontal bar l3 which clamp-bar has a down-turned forward end 41 with a horizontal presser-foot 48 at the lower end thereof. This presser-foot 48 normally has position directly over the block 23, clamp-jaws 39 and 3|, the

be attained because the rear end of clamp-bar 46 4 I is pivotally attached to an arm 49 of a slide plate 50 that is adjustably secured on the bar l3 beneath it so that by sliding the plate 50, thefoot 48 may be moved forward or backward to the desired position.

The under side of the clamp-bar 46 carries a spring finger 5| which latter depends therefrom so that its lower forward end 52 will normally seat on top of the block 23 when the latter is in its uppermost position and also when the clamp- 50 bar 46 is in its uppermost position, as shown in Figs. 1 and '7 of the drawings.

This is the normal position of the parts because it leaves the block and its pin 29 elevated above the cross-bar 29, but spaced below the 55 presser-foot 48, so the operator can readily insert the tip on the pin and between the clamp jaws.

In practice, the bar 46 is held up by means of a chain 53 that lifts it against the action of a downwardly-pressed plunger-bar 54, both of which are commonin factory sewing machines and are operated by a treadle means which I deem unnecessary to illustrate.

After the tip 33 has been inserted on the pin 29 and between the clamping jaws and the cover 42 has been folded and slipped over the end 34 of the tip, (the latter then being in the position shown in Fig. 9) the operator will release the treadle that exerts an upward pull on chain 53,

and the spring-pressed plunger-bar 54 will push down on the clamp-bar 46.

Two operations will take place upon the depression of the clamp-bar.

As the clamp-bar begins to move down, the spring-finger 51 whose lower end 52 is seated on top of block 23, will first swing the forward-end of the block down the latter carrying the tip therewith and providing for the seating of the outer end portion of the under side of the folded cover fabric in the concavity 4! in the upper side of the cross-bar 20. After this seating takes place, further downward movement of the clamp-bar will seat the presser-foot 48 on top of the fabric and stretch the same down and about the tip, but without sliding the fabric lengthwise on the tip.

I have found in practice that if the springfinger 5| is omitted and the presser-foot alone is relied upon to seat the fabric and tip, that there is a tendency for the presser-foot to slide the cover-fabric slightly lengthwise on the tip and-thus displace the edge thereof with respect to the shoulder 38 about which the stitches are to be made. This however is avoided by first seating the tip and cover on the bar 20 before the foot 48 seats on the upper side thereof.

After the fabric and tip are finally clamped by the presser-foot, the operation of stitching is then carried out. 1

The desired position of the fabric on the tip just prior to stitching is shown in Fig. 6 and by reference thereto it will be noted that the fabric cover projects across the shoulder 38 on the tip.

This positioning of the fabric enables the machine needle 40 to make one downward stroke through the fabric at the one side and then a downward stroke at the opposite side of the tip carrying the stitches around the tip under the shoulder 38 so that the stitches 55 will extend around the tip and also. pass through the fabric :as shown in Fig. 9.

After the tips have been attached to the cover, the socketed ends thereof will be swung back under the cover leaving the ornamental ends 34 exposed and said socketed ends will then be fitted .on the outer ends of the ribs 31 as shown in Fig. 8.

As the tip-carrying block 23 is carried on the pin or shaft 22 and is yieldingly held up by the coiled spring 24, I provide a stop-arm 56 which extends from the bracket-plate and terminates .over the upper side of the block 23 to limit the upward movement of the latter.

It will also be noted that a link 51 extends between the bar 13 and the clamp-bar '46 which permits a limited vertical movement of the clamp-bar 46 and its presser foot 48 without raising the bar I3 or its tip-carrying parts. This link 51 however, after a certain independent movement of the clamp-bar has been made, will then lift the bar 13 and bracket-plate whereby to break the stitching thread after the stitching operation has been completed.

Having described my invention, I claim:-

1. In an umbrella rib-tip attachment for sewing machines the combination with a plate having a slot for the passage of a sewing-machine needle, of an adjustable tip-supporting means for sustaining the tip in position with respect to said slot, a resilient clamping means for the tip extended forwardly of said supporting means for engaging the tip at opposite sides of the latter, and a movable clamp device to seat over the tip and the cover to be stitched thereto.

2. In an umbrella rib-tip attachment for sewin'g machines the combination with a pivotallysustained p-late having a slot therein for the passage of a sewing-machine needle, of means movable with the said plate and also movable independently of the plate for sustaining the tip in position with respect to said'slot and a clamp device also movable with said plate as Well as independently thereof to seat over the tip and the cover 'to be stitched thereto.

3. In an umbrella rib-tip attachment for sew- :5

ing machines the combination with a pivotallysustained plate having a slot therein for the passage of a sewing-machine needle, of means movable with the said plate and also movable independently of the plate for sustaining the tip in 10 position with respect to said slot, a clamp device having-a connection with said plate to permit a limited movement independently thereof and a further movement therewith and means for moving the tip-sustaining means by the independent 15 movement of the clamp device.

4. In an umbrella rib-tip attachment for sewing machines the combination with a pivoted bracket-plate having a needle slot therethrough,

of a pivoted block carried by said bracket-plate 20. and having means for holding a tip with respect to said slot, means for yieldingly pressing the block and tip-holding means in one direction and a clamp device to seat over the tip held by said holding means.

5. In an umbrella rib-tip attachment for sewing machines the combination with a pivoted bracket-plate, of a block carried by and pivoted with respect to said plate, tip-sustaining means mounted on and movable with said block, a clamp 30 device and means for moving the block and tipsustaining means before the clamp device seats.

6. In an umbrella. rib-tip attachment for sewing machines the combination with a pivoted bracket-"plate, of a block carried by and pivoted 35' with respect to said plate, tip-sustaining means movement.

"7. In an umbrella rib-tip attachment for sewing machines the combination with a pivotally- 45 sustained bracket-plate having a needle-slot therein, of a tip holder pivotally carried from the bracket-plate, a pivoted clamp device movable with the bracket-plate and also movable independently of said plate and a link connecting 58 said clamp device with the bracket-plate.

8. In an umbrella rib-tip attachment for sewing machines the combination with a pivotallysustained bracket-plate having a needle-slot therein, of a tip-holder having a pin which is 55' longitudinally adjustable toward and from the said needle-slot and a pivoted clamp device also having a needle-slot in front of the pin.

9. In an umbrella. rib-tip attachment for sewing machines the combination with a pivotally- 60 sustained bracket-plate having a needle-slot therein, of a yielding block carried by the bracket-plate, a tip-holding pin projecting from said block, a clamp-device above the pin and yielding means between the clamp-device and block. 65

10. In an umbrella rib-tip attachment for sewing machines the combination with a pivoted plate having a slot for the passage of a sewingmachine needle, of adjustable tip supporting means for sustaining the tip in position with respect to said slot, a. pivoted clamp to clamp the material about the tipand a connection between the clamp and plate to permit a limited independent movement of the clamp with respect to the plate and a further movement of both clamp and plate to break the stitching thread after the stitching operation is completed.

.11. In an umbrella rib-tip attachment for sewing machines, a plate having a slot therein for the passage of a sewing machine needle, tipholding means pivotally connected with the plate, means normally elevating the tip-holding means with respect to the plate, a pivotally movable clamp device above the tip-holding means, and

a tension element interposed between the clamp device and tip-holding means.

12. In an umbrella rib-tip attachment for seW- ing machines, a plate pivotally movable toward and from a sewing machine bed and having a slot for the passage of a sewing machine needle, tip-holding means pivotally connected with the plate, means normally elevating the tip-holding means with respect to the plate, a pivotally mounted clamp device above the tip-holding means, a tension element interposed between the clamp device and tip-holding means, and means connecting the clamp device with the plate to permit limited movement of the clamp device away from the plate and to provide for movement I of the plate with the clamp device upon further movement or the latter. 13. In an umbrella rib-tip attachment for sewing machines, the combination with a pivotally sustained bracket plate having a needle slot in the outer'end thereof, of a normally elevated spring controlled block pivotally connected to and arranged within the bracket plate, a tip-holding means extending from the outer end of the block, and a pivotally sustainedclamping means for lowering the block and for clamping down the tip and the fabric to be secured to the tip in position about the latter.

14. In an umbrella rib-tip attachment for sewing machines, the combination with a pivotally sustained bracket plate having a needle, slot in the outer end thereof, of a normally elevated, spring controlled block pivotally connected to and arranged within said plate, said block hav- 7 ing a tip-holding means extended from its outer end, and yieldable means extending from the outer end of the block for clamping the tip upon said holding means. 7

15. In an umbrella rib-tip attachment for sewing machines, the combination with a pivotally sustained bracket plate having a needle slot in the outer end thereof, of a normally elevated,

spring controlled block pivotally connected to and arranged within said plate, said block having a tip-holding means extended from its outer end, yieldable means extending from the'outer end of the block for clamping the tip upon said holding means, and a pivotally sustained clamping means connected with the bracket plate for lowering the block and for clamping down the tip and the fabric to be secured to the tip in position about the latter.

16. In an umbrella tip attachment for sewingmachines, the combination with a tip holding means, a horizontally disposed supporting element for said means pivotally supported at its inner end and having its outer, end outwardly with respect to said means formed with a needle slot, of an upwardly and downwardly movable presser foot carrier arranged in superposed spaced relation to, movable relatively to and being pivoted at its rear end with said element intermediate the ends of for said means pivotally supported at its inner end and having its outer end outwardly with respect to said means formed with a needle slot, of an upwardly and downwardly movable presser 7 foot carrier arranged in superposed spaced rela- 5 tion to, movable relatively to and being pivoted at its rear end with said element intermediate the ends of the latter, said element including means for adjusting the length thereof.

18. In an umbrella tip attachment for sewing 0 machines, the combination with tip holding means, a horizontally disposed supporting element for said means pivotally supported at its inner end and having its outer end outwardly with respect to said means formed with a needle slot, 15 of an upwardly and downwardly movable presser foot carrier arranged in superposed spaced relation to, movable relatively to and being pivoted at its rear end with said element intermediate the ends of the lattenand said element and carrier 20 having coacting means to permit a limited upward movement of the carrier with respect to said element.

19. In an umbrella tip attachment for sewing machines, the combination with a tip holding means, a horizontally disposed supporting element for said means pivotally supported at its inner end and having its outer end outwardly with respect to said means formed with a needle slot, of an upwardly and downwardly movable presser foot carrier arranged in superposed spaced relation to, movable relatively to and being pivoted at its rear end with said element intermediate the ends of the latter, said element including means 'for adjusting the length thereof, and

said element and carrier having coacting means to permit a limited upward movement of the carrier with respect to said element.

20. In an umbrella tip attachment for sewing machines, a horizontally disposed supporting ele- 40' ment provided at its outer end with a needle slot and being pivotally supported at its inner end, a depressible spring controlled tip holding means arranged within the forward portion of said element, extending in close proximity to said slot and providing for positioning the tip across the latter, an upwardly and downwardly movable horizontally disposed presser foot carrier normally arranged in superposed spaced relation to and having its rear end pivotally connected with said and being pivotally supported at its inner end,

a depressible spring controlled tip holding means arranged within the forward portion of said element, extending in close proximity to said slot and providing for positioning the tip across the latter, an upwardly and downwardly movable horizontally disposed presser foot carrier normally arranged in superposed spaced relation to and having its rear end pivotally connected with said element intermediate the ends of the latter, a presser foot extending forwardly from said carrier, bodily moving with the latter, normallypo- I sitioned in spaced relation to said slot and means and capable when lowered to depress the latter to maintain the tip across said slot, and said element and carrier having coacting means to per- '65 init alimited upward movement to the carrier with respect to said element.

22. In an umbrella tip attachment for sewing -machines, a horizontally disposed supporting element provided at its outer end with a needle slot and being pivotally supported at its inner end, a depressible spring controlled tip holding means arranged within the forward portion of said element, extending in close proximity to said slot and providing for positioning the tip across the latter, an upwardly and downwardly movable horizontally disposed presser foot carrier normally arranged in superposed spaced relation to and having its rear end pivotally connected with said element intermediate the ends of the latter, and a presser foot extending forwardly from said carrier, bodily moving with the latter, normally positioned in spaced relation to said slot and means and capable when lowered to depress thelatter to maintain the tip across said slot, that portion of said element in which is mounted said tip holding means being disposed in a plane spaced from and parallel to another portion of said element.

23. In an umbrella tip attachment for sewing machines, a horizontally disposed supporting element provided at its outer end with a needle slot and being pivotally supported at its inner end, a depressible spring controlled tip holding means arranged within the forward portion of said element, extending in close proximity to said slot and providing for positioning the tip across the latter, an upwardly and downwardly movable horizontally disposed presser foot carrier normally arranged in superposed spaced relation to and having its rear end pivotally connected with said element intermediate the ends of the latter, a presser foot extending forwardly from said car rier, bodily moving with the latter, normally positioned in spaced relation to said slot and means and capable when lowered to depress the latter to maintain the tip across said slot, and said element and carrier having coacting means to permit a limited upward movement to the carrier with respect to said element, that portion of said element in which is mounted said tip holding means being disposed in a plane spaced from and parallel to another portion of said element.

24. In an umbrella tip attachment for sewing machines, a pivoted tip holder structure, a supporting means for and provided with a pivot for said structure, said means being formed with a needle slot positioned outwardly with respect to the outer end of said structure, and an upwardly and downwardly movable presser foot carrier ar-'- ranged in superposed relation with respect to and movable relatively to said structure and means, said carrier being pivotally connected at its rear to said means.

25. In an umbrella tip attachment for sewing machines, a pivoted spring controlled tip holder structure, supporting means, the pivot for said structure being carried by and connecting said structure to said supporting means, said supporting means being formed with a needle slot outwardly with respect to said structure, and an upwardly and downwardly movable presser foot carrier arranged in superposed relation with respect to and movable relatively to said structure and means, said carrier being pivotally connected at its rear to said supporting means rearwardly of said structure and including resilient means for bearing on the latter when the carrier is lowered.

26. In an umbrella tip attachment for sewing machines, a tip holding means supporting element, means for pivotally supporting the rear end of said element, a spring controlled tip holder mounted within and pivotally connected to said element, the latter being formed outwardly with respect to said holder with a needle slot, and an upwardly and downwardly movable presser foot .5 carrier arranged in superposed spaced relation to and movable relatively to said element and holder, said carrier being pivotally connected at its rear end with said element intermediate the ends of said'element.

27. In an umbrella tip attachment for sewing machines, the combination with a tip holder means, and a horizontally disposed supporting element for said means, said element being pivotally supported at its rear end and having its outer end forwardly of said means formed with a needle slot, of an upwardly and downwardly movable presser foot carrier arranged in superposed relation to and movable relative to said means and element, said carrier being pivoted at its rear end with said element intermediate the ends of the latter, and said element and carrier having coacting means to permit a limited upward movement of the carrier with respect to said element.

28. In an umbrella tip attachment for sewing machines, a supporting element, a spring controlled tip holder arranged over and pivotally connected to said element, said holder positioned rearwardly of the forward end of said element, a presser foot carrier arranged over and movable relative to said element and holder, means for pivotally supporting the rear end of said element, means for pivotally connecting the rear end of said carrier with said element, and said element being formed with a needle slot at its outer end.

29. In an umbrella tip attachment for sewing machines, the combination with a tip holding means, and a horizontally disposed tip holding means supporting element for said means, said 4,

element being pivotally supported at its rear end and having its outer end formed with a needle slot positioned outwardly with respect to the holding means for the tip, of an upwardly and downwardly movable presser foot carrier arranged in superposed spaced relation and movable relative to said element, and means for adjusting said carrier lengthwise of said element and for pivotally connecting the rear of the carrier to said element intermediate the ends of the latter. 30. In an umbrella tip attachment for sewing machines, the combination of a tip holding means, a horizontally disposed tipholding means supporting element for said means, said element being pivotally supported at its rear end and having its outer end formed with a needle slot positioned outwardly with respect to the holding means for the tip, an upwardly and downwardly movable horizontally disposed presser foot carrier arrangedin superposed relation and movable to- 60,

ward and from said element, said carrier being adjustable lengthwise of said element, and slid able means mounted on said element for adjust ing the carrier lengthwise of said element, said slidable means connecting the rear of the carrier to said element and including a pivot for the carrier.

31. In an umbrella tip attachment for sewing machines, a tip holder structure,supporting means for said structure, said structure being arranged within and disposed over the forward portion of said means, said structure being pivoted at its rear end to said means intermediate the ends of the latter, said means being formed with a needle slot forwardly of said tip holder structure, a shiftable presser foot carrier, and means for pivotally connecting the carrier with said supporting means rearwardly of said holder structure.

32, In an umbrella tip attachment for sewing 7 machines, a tip holder structure, a lengthwise adjustable supporting means for said structure, said structure being arranged within and disposed over the forward portion of said means, said structure being spring controlled and pivoted at its rear end to the said means intermediate the ends of the latter, said structure, as an entirety being depressible and normally spaced from said forward portion, said means being formed with 'a needle slot forwardly of said structure, a pivoted presser foot carrier arranged over, connected with, movable relatively to and adjustable lengthwise of said supporting means, and means for maintaining the carrier in adjusted position.

33. In an umbrella tip attachment for sewing machines, a tip holder structure, a lengthwise adjustable supporting means for said structure, means for pivotally connecting said structure to said supporting means intermediate the ends of the latter, said supporting means extended forwardly from said structure and being formed in its forward end with a needle slot, a presser foot carrier arranged over and movable relative to said supporting means, and means for pivotally and adjustably connecting the rear of the carrier to said supporting means rearwardly of said structure.

34. In an umbrella tip attachment for sewing machines, a tip holder structure, a lengthwise adjustable supporting means for said structure,

' means for pivotally connecting said structure to said supporting means intermediate the ends of the latter, said supporting means extended forwardly from said structure and being formed in 7 its forward end with a needle slot, a presser foot 40 carrier arranged over and movable relative to said supporting means, means for pivotally and adjustably connecting the rear of the carrier to said supporting means rearwardly of said structure, and means for pivotally supporting said supporting means at the rear of the latter.

35'. In an umbrella tip attachment for sewing machines, a tip holding means, a horizontally disposed supporting element for said means, said element being pivotally supported at its rear end and having its outer end outwardly with respect to said means formed with a needle slot, said element being lengthwise adjustable, and an upwardly and downwardly movable presser foot carrier arranged in superposed spaced relation to said element and movable relative to the latter, said carrier being pivotally connected atits rear with said element, and means for adjusting said carrier lengthwise of said element.

36. In an umbrella tip attachment for sewing machines, a tip holder supporting element pivotally supported'at its'rear, a tip holder pivotally mounted upon the forward portion of and spaced from the forward end of said element, the latter being formed with a needle slot in its forward end, a presser foot arranged over said holder and slot, and a carrier for said presser foot, said carrier being arranged over said holder and element in spaced relation and being pivotally connected at its rear with said element.

37. In an umbrella tip attachment for sewing machines, a tip holder supporting element pivotally supported at its rear, a'tip holder pivotally mounted upon the forward portion of and spaced from the forward end of said element, the latter being formed with a needle slot in its forward end, a presser foot arranged over said holder and slot, a carrier for said presserfoot arranged over, in spaced relation to and movable relatively to .said holder and element, and means for pivotally work gripping elements when separated, and a stop to limit the spring actuated movement of the chuck and position it between and clear of the said work gripping elements.

39. A work holder of the character specified, including a carriage provided with work gripping elements, a chuck, a holder detachably receiving the chuck, a support having the chuck'holder rotatably mounted thereon, a spring normally tending to move the chuck in one direction, and a stop limiting the spring actuated movement of the chuck and positioning it midway between the said gripping elements when the latter are separated.

40. In' an umbrella tip attachment for sewing machines, a pivoted spring controlled depressible structure having a part at its outer end for supporting a tip in outwardly extended relation thereto, means for pivotally supporting said structure, said structure being pivoted at its rear end to said means intermediate the ends of the latter,

7 said structure being arranged within and over the forward portion of said means, said structure being normally spaced from said forward portion and depressible, as an entirety to position the tip to be acted upon, said means being formed with a needle slot forwardly of said part, and a depressing means for said structure to position the tip to be acted upon.

41. In an umbrella tip attachment for sewing machines, a pivoted spring controlled depressible structure having a part at its outer end for supporting a tip in outwardly extended relation thereto, means for pivotally supporting said structure, said structure beingrpivoted at its rear end to said means intermediate the ends of the latter, said structure being arranged within and over the forward portion of said means, said structure being normally spaced from said forward portion and depressible, as an entirety to position the tip to be acted upon, said means being formed witha needle slot forwardly of said part, a depressing means for said structure to position the tip to be acted upon, and said part being adjustable for increasing and decreasing the length of said structure.

JOSEPH LEVIN.

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