US244500A - Needle-holder for sewing-mach in es - Google Patents

Description

(Model.)

W tJ: TISDALIE..-

NEEDLE HOLDEN EOE SEWING MACHINES. 110,244,500. Patented July 19,1881.

Z DI m H l A WITZJEEEEE l I 'UNITED STATES PATENT 4OFFICE.

JOSIfAH TIS-DALE, OF NORWOOD, MASSACHUSETTS.

NEEDLE-HOLDER FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 244,500, dated July 19, 1881. Application 'filed Aprn is, 1881. (Model.)

To all whom it may concern: Y

Be it known that I, J osIAH TrsDALE, a citizen of the UnitedStatesbresiding at Norwood, in the county of Norfolk and State of Massachusetts, have invented certain Improvements in Self-Settim g Needle-Holders for Sewing-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specication, in which'- Figure lis an elevation (enlarged) of a portion of the needle-barjof a sewing-machine having myimproved needle-holder applied thereto. Fig. 2 is a vertical section through the same. Fig. 3 is a horizontal section on the linel moet Fig. 2. Fig. 4is a perspective view (enlarged) of myimproved needleholder detached, with the justing the needles, for the reason that this operation was necessarilyperformed while they were in a vertical position upon the needle-bar, and when the clamping device was loosened one needle was liable to drop out or slip down out of place while the other was being set.

My invention has for its object to overcome this difficulty and enable the needles to be readily set or adj usted in their proper relative positions before being applied to the needle-bar, and it consists in a removable needle-holder of peculiar construction, in which the needles are temporarily' held when it is removed from the needle-bar, with sufficient force to keep them in place, by a spring pressure-plate, which admits of their being set or adjusted without liabilityof slipping out of place, the pressureplate being afterward forced against the needles Vto hold them securely in place on the needle-bar by the same set-screw which confines the holder upon the lower end thereof.

In the said drawings, Arepresents a needlebar, which maybe of any suitable pattern and adapted to tit :m57 ordinary machine.

B is the removable needle-holder, which is madein the form ot' a colla-r, and is secured to the lower end of the needle bar by means of a' spiral spring,'f, which thus serves to draw the plate toward the side g of the collar B with sufficient force to automatically hold the two needles M in place within the holder, as seen in Fig. 4, the needles being inserted between the pressureplate b and the side of the holder in suitable grooves, 7c l, formed opposite each other in the plate and holder, whereby the needles are kept parallel at the proper distance apart and their verticality insured. When the vholder B is removed from the needle-bar the pressureplate b bears with sufticientforce upon the needles to hold each of them securely in place independently of the other, and at the same time admit of their being easily slid up or down to set or adj ust them as required, which operation is thus greatly facilitated, as it can be performed' when the holder is removed from the machine, and all liability of one needle slipping out of place while the other is being adjusted is entirely avoided. After the needles have been adjusted in the holder B the latter is slipped onto'the lower end of the needle-bar A and secured iirmly in place by-means of the set-screw a, which also presses the needle-bar against the plate b and simultaneouslyclamps the two needles immovably in place, the single set-screw thus serving as a means of both holding the needles within the holder and the'holder to the needle-bar, the upper ends of the needles when in place resting against the shoulder 5 of the needle-har, which thus serves as a gage to determine their height. When the clampn ing-screw ct is loosened the holder B and the needles which it contains can bc instantly removed Without any liability of the needles dropping out, as heretofore, which will be found to be a great convenience. y

It is obvious that a needle-holder constructed in accordance with in yin ven tion may be adapted to hold three or more needles, if desired, or it may be used to hold a single needle only, if required.

YVhatIclaim as my invention, and desire to secure by Letters Patent, is-

1. `In a needle-holder for sewing-machines, the combination, with the collar B, of a spring pressure-plate adapted to automatically confine the needles in place within the collar when the latter is removed from the needle-har, and at the same time allow the needles to be set or adjusted independently of cach other without liability of dropping or slipping,` out ot' place, substantially as described.

2. The combination, with the collar or holder B, of the springpressureplate b, adapted to automatically retain a series of two or more needles within the holder when the latter is removed from the needle-bar and admit of y their ready adjustment, and the set-screw c, arranged to simultaneously clamp the holder upon the needle-bar and the needles between the plate b and the holder, substantially as and for the purpose set forth.

3. The combination, with the needle-bar A, of the holder B, with its set-screwa and spring pressureplate l), adapted to hold the needles in suitable grooves and beforced against them to clamp them in place by the same setscrew which confines the holder upon the lower end of the needle-bar, substantially as described.

4. The combination ot' the collar or holder B, the pressure-plate b, secured to the sliding piu c, and the spring f, placed within the recess 10, all arranged to operate substantially in the manner and for the purpose set forth.

Witness my hand this 13th day of April, A. D. 1881.

JOSIAH TISDALE.

In presence of- W. J. CAMBRIDGE, P. E. TESCHEMACHER.

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