US681140A - Tension device for twine or cord. - Google Patents

Description

-Nm 68u40. Patented Aug. 2o; lem.

` c. A. A. BAND.

TENSION DE-V|GE FOB TWINE 0R CDRD.

` (Application led Dgc. 22, 1900.) (llo Model.)

Inveni': du@ aw To ctllpwhom, t may concern.-

j UNITED :STATES PATENT OFFICE.

CI-IARLESA. A. RAND, OF CHICAGO, ILLINOIS.

`TENSION DEVICE FOR TWINE R CORD.

SPECIFICATION forming part of Letters Patent No. 681,140, dated August 20, 1901.

` Apnoonon ioa'no'oomtor 22,19oo`. sor1o1No.4o,74s. (No moaoi.)

Bo it known that I, CHARLESALF'REDAN- DERsoN RAND, a citizen of theUnited States,

` residing at Ohicagopinthe county of Cook and State of Illinois,` have invented certain new and useful Improvements in Tension Devices for Twine or Oord;` and I do hereby de- Clare the following/co be a full, clear, and

l: exact description of the invention,lsuch as will enable others skilled inthe art to which it appertains to make and use the same, reference being hadto the accompanying drawings, forming a part of this specification.

`The invention relates to tension devices y used on machines for binding grain, corn,&c. o where a number of balls of cord or twine have theirendstied together and are stacked up in f 1 the can, from which thestrands run through c the tension device to the eye of the needle or 2`o binder` arm.

The object of my invention is to provide a` d tension that shall be adjustable and at the same time automatic in its operation, so that 1 .n when the cord ortwine catches or kinks, so o `25 as to producean` increased tension tending to break it, the tension produced by the device may be removed.

. "In the drawings, Figure l is an elevationV y c 1 of the upper end of the can, showing an end view ot the tension device. Fig. `2 i-s a section of theparts shown in Fig. 1, taken vertically through the tension device; and Fig.

. y. 3 is a top plan view of the parts shown in the can.

otherligures. t c

Referring tothe views, a represents the It is provided with the hinged lidb and is of any ordinary size, shape, and construcc non. Tho iid t is provided with a ban-nk@ hinge c, on which it swings in opening and closing. At one side, near the top of the can, is provided a bracket d, having the projection d', forming aportion of the trunnion for the sheave or wheel of the tension device, and

` l i just below this trunnion portion there is also a guide-eye f for leading the twine or cord to the wheel and another guide-eye f for determining the direction of the twine as it is drawn from the wheel. In the construction herewith illustrated these guide-eyes are made in one part with the bracket d; but obviously this is a matter of convenience and economy, and one or both may be separate therefrom, if desired. For economy, simplicity, and convenience of construction I also utilize the trunnion-bracket d for the bearing g of the hinge o of the lid. This bearing is best formed by the lugs or ears n, rising inside of a groove o, formed at the upper end of the bracket ol at or near the inner end of the trunnion portion cl. The pintle of the bail-like hinge c fits in this groove 0 and is removably held therein by the toe-piece m on the inner end of the movable section d2 of the trunnion,

which will presently be described.` This said l The trunnion proper is split or divided l longitudinally into sections d' and d2, .adapted to fit loosely the bore of the sheave or `wheel e, `which is journaled thereon. The section d of the trunnion is a rigid extension of the bracket d. The section Z2 is a separate piece. It is provided with a slight projection or toe-piece m on one end, which serves as a fulcrum. This leaves an opening p between the rigid section el and the movable section d2, allowing the latter the-desired latitude of movement. The outer end of the section d2 is deflected laterally, as shownin Figs. 1 and 3, and has the downward projection 7c, which underlies the end of the rigid sectiond.

Seated in the outer end of the Iixed section of the trunnion d is a rod or bolt h, that extends downwardly through the slotted end of the extension k of the movable section. Beari twine to the Wheel, a guide-eye to determine the direction of the twine as it is drawn from the wheel, said trunnion being longitudinally divided into sections, a bearing for the pintle 5 of the bail-like hinge formed in the rigid seoi tion, a toe-piece 0r fulerum formed on one end of the movable section adapted to overlie the said bearing and hold the pintle in place, and a spring on the opposite side of

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