US108569A - Improvement in work-holders - Google Patents

Description

dilated grant @sind dtiiyiire.

' NICHOLAS OLUTE, or scnnnnoriinr, New YORK, AND OLIVER w. MAR- snALrv or HARTFORD, oonnnorronr.

Letters Patent No. 108,569, dated October 25, 1870.

IMPRovEMl-:NT'iN WORK-HOLDERS.

The Schedule referred to ln these Letters Patent and.` making part of the same.

We, NIcnoLAs GLUTE, of Schenectady, in the county of Schenectady in the State oi New York, and OLIVER W. MARSHALL, of Hartford, in the county of Hartford in the State of Connecticut, have invented certain Improvements in WOrk-HOldcrS, of

` which the following is a specification.

As work-holders, for holding the work while heilig operated upon, such as sewing, hemming, basting, or ripping old work, have heretofore been constructed, they only take hold of the work and rigidly hold it in a single position, and the holder is incapable of feeding the work along as the operatorand the condition ofthe work may require, without releasing the work from the holder and moving it a-long by hand to have it held in a diii'erent place.

The object of our invention is to not only rigidly hold the material being wrought upon in any desired position, but to feed the material along, so that the relative position of the operator to the machine and work will always be the same, whether the operation be sewing, ripping, or other work that may need l1olding while being wrought upon; and

It consists in the construction of the device,'where by the above result is accomplished. f

Figure l is an upright view'of the holder.

Figure 2 is an upright sectional view, showing the interior arrangement of the operatiugparts;

Figure 3 is an end view ofv the operating-cylinder;

Figure 4 is a viei'v of the spring in the cvlinder5' and Figure 5 is a top view Ot' the case and working-cylinder. i i y A is a section of' the top of a table or stand to which the holder is attached.

B is the ease that contains and holds some `of the operating-parts, and is made in two parts, as seen in iig. 5, in order to place and hold therein the cylinder c, which contains the coiled spring g, and has the journals of the shafts b b' cut equally in each half,'as seen in iig. 2.

B is the shank part of case B, and passes through the tabletop A.

B "is a nut with au internal screw-thread, 4that screws onto screw-thread o on the case B, and serves to hold the two parts of the case together, and the shafts b' b and cylinder' c in their places.

C isa hand-lever uut, that screws onto thc lower end of the shank of case B, and underneath the table-top, and fastcns the holder securely to the table, as seen in -tig. 1.

b b are 'two revolving feed-rollers, secured firmly to horizontal shafts b b, which are journaled and freely revolve in case B. These rollers b b are covered with or made wholly of India-rubber, in order that their surfaces may be yielding, so that they will not slide upon each other, or the material placed between them slip; and to insure this condition the surfaces' are made to press hard against each other, by having the journal-boxes in case B made atrifle nearer each other than theV distance would be as simply placed against cach other with their shafts 7)" b parallel.

Upon the lower shaft b' is secured a cylinder, c. This cylinder c is closed at its ends, and contains a coiled spring, y. y

To the outer end of the spring g is awiueh or lever, by which the spring is held in proper tension, as secu in fig. 2.

lo one head of the cylinder is a ratchet, d, which is held. by pawl e and spring f, and is similar .to a watch-spring, lits cylinder or barrel, and ratchet and pawl.

.lhe inner end of the coiled spring y is securely attached to the hub of the cylinder in the usuaiway.

Upon the outer side of cylinder c, and securely attached thereto, is strap D, which extends downward through the shank of case B, and low enough to receive stirrup E, with its coiled spring-top It at its lower end, and have the stirrup the right height to place the operator-s foot therein. The stirrup Eis constructed of wire, and bent in the form seen in tig. 1. The top part 7.1, formed so `that it acts a ,spring and loop or ring, to which the strap D is attached. y

At each end the wire is bent in the form as secu in said ig. 1, and terminating in npwardly-projeeting points i v y This construction of stirrup allows of different sizes of boot or shoe, as it can he sprung open or closed as desired, and the points i t, together with the spring of its sides, will prevent its slipping off of the shoe or boot when in usc.

lhe case B may be made in any convenient form other than` the one adopted and herein described.

Byonr construction and arrangement of the parts of the device a simple, eiiicieut, and cheap work` holder is produced having all the holding qualities that any other work-holder can have, and, at the same time, the additional function or means of automatically moving the work, heilig held and wrought upon along, so that the best relative position of the operator to the work can always be secured.

rlhe device is so placed together as that thc coiled spring is wound up bythe hand-winch h to its proper tension, lthe eyiinder turned so as to wind upon itself a poltion of strap D, and having the shaft b' with the cylinder and the winch hY of spring g in the positions as seen in fig. 2, when the'two parts ot case B are secured together by nut B", and the holder is ready to be put in the proper place for operation.

When the scveral parts are thus arranged and placed together and secured to a table or stand, the Work is introduced between the rollers b b, which, by being, compressed on their surfaces that are in contact, hold the work firmly, and, when the operator desires` to have the work moved along, it is only neccssary, by having the foot placed in the strrup, and bearing gently down with the foot, to revolve the cylinder by means of t-hc strap, which act revolves the lower roller I), and with it the upper roller, thus feedingthe work along. The foot is then raised, when the spring will wind up the slt-rap again upon the cylinder.

The work can be fed along as often and as rapidly as desired, as the pawl in the ratchet holds the 'cylinder from returning to its original position without winding all the strap on the cylinder that was run off by the bearing on of the foot.

XVe lay no claim to the cylinder, spring, or feedrollers by themselves, as they are known to beold and in use; but v What We do claim, and wish to secure by Letters Patent, is

"1.' The work'- holder herein described, when constructed and arranged to operate in Athe manner and for the purpose set forth.

2. The stirrnp E, constructed in the manner and for the pui-pose described.

3. The combination of the stirrup E, strap D, cylinder c, coiled spring @ratchet d,paw1 e, with the holding and feeding-rollers b b, in the manner and for the purpose described.

NICHOLAS OLUTE. OLIVER W. MARSHALL.

Witnesses J. N. SHLPMAN, C. W. JOHNSON.

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