US1574616A - Bobbin carrier for lace-braiding machines - Google Patents

Bobbin carrier for lace-braiding machines Download PDF


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US1574616A US67954A US6795425A US1574616A US 1574616 A US1574616 A US 1574616A US 67954 A US67954 A US 67954A US 6795425 A US6795425 A US 6795425A US 1574616 A US1574616 A US 1574616A
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    • D04C3/00Braiding or lacing machines
    • D04C3/02Braiding or lacing machines with spool carriers guided by track plates or by bobbin heads exclusively
    • D04C3/14Spool carriers
    • D04C3/18Spool carriers for vertical spools


Feb. 23 1926. 1,574,616
H. FoNTY BOBBIN CARRIER FOR LACE BRAIIAING MACHINES Filed Nov. 9, 1925 /n venfnr Patented Feb. 23, 1926.
AUNITED STATES j 1,574,616 Param OFFICE.
, Application led November 9, 1925. Serial No. 67,954.
To all whom t may concern:
Be it known that I, HENRI FONTY, a citizen of the French Republic, residing at Paris, Department of the Seine, in France,
6 have invented certain new and useful Improvements in Bobbin Carriers for Lace- Braiding Machines, of which the following is a specification. Y
This invention relates to a novel bobbin- 10 carrier for lace-braiding machines; which permits the use of a larger bobbin, holding twice or four times as much thread as the bobbin-carriers now in use. The stirrup usually located at theside ofthe bobbin and extending beyond it, which carried the devices for guiding and stopping the thread, is eliminated and replaced by a fixed member, a kind of cap, upon which are arranged the thread guiding and stopping devices.
This device permits the rapid exchange of the bobbins. The device is balanced and arranged in such way that its center of gravity is always intersected by the axis of the bob bin-carrier, whereby when the machine is running, the rotation of the bobbin-carrier about its axis is obviated, thus preventing any twisting or untwisting of the thread.
Moreover, this device provides an abutment for the bobbin towards the top, preventing it from coming off under the action of the tension of the thread and from interfering with the operation of the stopping device. By eliminating the stirrups, the space between the spindles of the bobbin-carriers is completely available for the bobbins, thus permitting the amount of thread on the bobbins to be increased, consequently there are fewer stops, less time wasted and greater output,
The accompanying drawing shows by way of example one construction of the bobbincarrier in accordance with the invention. In the drawing:
Figure l is an elevation of three adjacent bobbins on their respective carriers, the middle one being shown provided with the new device.
Fig. 2 is a plan of said device.
Fig. 3 is a horizontal section taken on line 8-3 of Figure l.
Referring to the drawing, l are the hollow spindles of the bobbin-carriers on which turn freely the bobbins 2 filled with thread and provided at the top with ratchet discs 2 as usually employed and intended for stopping the thread. These bobbins 2 when used with my invention, may be filled until they almost touch. at their peripheries, or in the. case of a pole thread leave place for the tube 3 between them. The
-stirrup hitherto employed, which was fixed on the cap and carries a pawl 6a which extends through a hole 6l in the cap and engages the ratchet disk 2a to prevent the `bobbin from rotating in one direction. This lever is joined to a hinge constitutedby the `angle iron 7, which serves to guidethe thread. Another thread-guide 8, consisting of a weak spring directed downwards, is also attached to the cap 5 and it takes up the thread as it unwinds and directs itupwards. A third thread-guide 9, is attached to the tubular part 55 of the cap 5, and is directed .diametrically `opposite to the guide 7, so as to secure equilibrium. The guide 9 leads the thread towards the center of they machine.
This guide 9 serves two purposes:
1. That of directing the bobbin-carrier and preventing it from rotating on its axis, for which a slight tension of the thread is su'liicient. j That ofvpreventing contacts due to the hooking of the thread by the ends 10 of the adjacent bobbin-'carriers,"as well' as b the ends l0 of the tube of the pole threa (see Fig. l). These ends 10 are usually con` stituted by a porcelain eye and may be attached either to the cap tube 5Et or to the spindle l. y
The position and directiony of the cap with respect to the spindle are determined by a special device, which in the example chosen consists of a leaf spring 11 attached to the cap and hooking by means of two jaws 12 into the notch 13 of the spindles 1. A set screw or a split ring would serve the same purpose, but more time would then be required to lift olf the bobbins and change them, whilst withv the device described, it suffices to push the spring 11 in the direction shown by the arrow to disengage the jaws 12 from the notch 13. The
tubular part 5a of the cap is slotted to permit the jaws to engage the notch 13. Two
guiding members 141 mounted on they tubev 5a prevent any bending of the spring l1 ina vertical direction, and consequently they iix the position of the cap 5 with respect to the notch 13 in the spindle l.
The thread coming from the bobbin passes through a hole in the end of Vthe spring 8, then through another provided in theend of the angle iron 7. It subsequently passes through an eye 6c in the lever 6 and thence down inside the spindle 1, where it passes through an eye l5 arranged at the end of a helical spring 16 which `is always under tension. Thence the thread ascends inside the spindle l and issues through the porcelain eye l0, extends along the guide 9 and passes through the last eye before comi-ng to the work at the middle of the machine.
Ars' the thread is used up by the machine, the eye 15 rises, so that the pawl 6n may r'ai'se and at this instant allow the bobbin to unwind a little.
Due to this arrangement, all the members, bobbins-guides and stops, have xed positions with respect to each other, which assures the efficient operation of the device. On the other-hand, hitherto the b'obbin, having no abutment at the top, tended to rise and prevent the disengagement of the pawl, which caused shocks and the breaking of the threads.
The cap 5 may have any suitable shape, and should be made as light as possible, well-balanced, and not exceeding the bobbin in diameter.
I claim as my invention-f l. In combination in bobbin carriers for braiding fmachines, a stationary spindle provided with a notch, a cap arranged on the spindle and having a tubular portion engaging the spindlerand provided with a slot opposite said notch, a leaf spring con* ne'cted to said cap and having a yokeshaped part embracing the tubular portion of the cap and 'provided with jaws to engage the notch for holding the cap upon the spindle, a thread bobbin loosely mounted on the spindle and provided with a ratchet disc, thread guides supported by the cap and its tubular portion, and a pawl mounted on the cap and engaging the ratchet disk. f
2. n combination in bobbin carriers for braiding machines, a stationary spindle having a notch near its upper end, a thread bobbin loose-ly mounted on said spindle and having a ratchet disk at its upper portion, a cap provided with a tubular portion, mounted on the upper end ot the spindle, the tubular portion having a slot arranged in alignment with the notch or' the spindle, a leaf spring mounted on the cap and having its upper portion embracing the tubular portion of the cap and provided With Vjaws adapted to extend into the notch for holding the cap in position, thread guides mounted on the cap and arranged at diametrically opposite sides of the same, and a pawl mounted on the cap and engaging the ratchet disk.
combination as claimed in claim in which one of said thread guides' consists ci a resilient arin extending downwardly iii-oni the cap alongside of the bobbin and having an eye at its lower end, another thread guide larranged above said resilient arm and having an eye to permit the passage ot the thread.
Ll. A combination as claimed in claim 2 in` which the spindle is tubular and prosignature.
US67954A 1925-11-09 1925-11-09 Bobbin carrier for lace-braiding machines Expired - Lifetime US1574616A (en)

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