US463336A - Lifting-jack - Google Patents

Description

(No Model.)

W. ORGUTT,

No. 463,336. Patented Nov.. 17, 1891l lrlllin 1L:

UNITED STATES vPATE-Nr FFICE.

VILLIAM ORCUTT, OF ABILENE, KANSAS.

LlFTlNG-JACK.

SPECIFICATION forming part of Letters Patent No. 463,336, dated November 17, 1891.

Application tiled July 30, 1891` To all whom, it may concern:

Be it known that I, WILLIAM ORcUTr, a citizen of the United States, residing'at Abilene, in the county of Dickinson and State of Kansas, have invented. certain new and useful Improvements in Lifting-Jacks; and I do hereby declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to wagon-jacks of that class in which a clutch is carried by the operating-lever, and a second or detent clutch is provided to hold the elevating-bar in position during the time the lifting-clutch is returning to obtain a new grip on the said elevating-bar.

The object of the invention is to provide simple and efcient means for positively7 actuating the two clutches by means of the operating-lever to simultaneously release them from the elevating-barwhen it is required to lower the same, and which operating-lever will engage with the detent-clutch at the limit of its lowest motion and cause the said detent-clutch to take a firm hold on the elevating-bar.

The improvement consists of the novel features and the peculiar construction and combination of the parts, which will be hereinafter more fully described and claimed, and which are shown in the annexed drawings, in which- Figure l is a perspective view ofva wagonjack embodying my invention, part of the standard being broken away. Fig. 2 is a de# tail view of the upper portion of the jack, partly in section, showing the relative position of the parts Whenthe operating-lever is at the lowest limit of its motion. Fig. 3 isa view similar to Fig. 2, showing the relative position of the parts when the operating-lever is at the limit of its upward motion.

The standard A is tubular' and provided with a foot at its lower end, and with a head B at its upper end, which is provided with vertical ears b, and with a vertical crest b at one end, on which the detent-clutch C obtains Serial No. 401,130. (No model.)

a fulcrum. The end of the head opposite the crest or ridge b is beveled, as shown at b2, to permit the free movements of the detentclutch on the said ridge or crest. The operating-lever D is supported between the upper ends of the ears Z7 near one end, and the end of the short arm is connected by links ewith the lifting-clutch F. The detent-clutch is adapted to tilt on the crest b', and the rear end (l thereof is constructed to be engaged by the clutch F, when the long arm of the operating-lever D is elevated to the highest limit to release the said detent-clutch Cf rom the elevating-bar G. This movement also disengages the lifting-clutch from the elevating-bar and permits the latterl to descend. The front end d of the detent-clutch projects suficiently far to be engaged by the long arm of the operating-lever when the latter is depressed to its lowest limit to cause the said detent-clutch to take a rm hold or grip on the elevating-bar G. The clutches Work between the ears b, and are of Well-known construction and operation. The elevating-bar G works in the tubular standard A, and through suitably-constructed openings in the clutches, and. is provided at its upper end with head g, which obtains a purchase on the under side of the axle or other device to be lifted.

Having thus described my, invention, what I claim, and desire to secure by Letters Patent, is

l. In a lifting-jack, the combination, with the standard having the crest b', the detentclutch adapted to tilt on the said crest, and the elevating-bar, of the lifting-clutch, and the operating-lever constructed to actuate the said lifting clutch and release the said detent-clutch, substantially as described` 2. In a lifting-jack, the combination, with the standard, the head at the upper end of the standard having crest b and the beveled portion b2, the detent-clutch, and the elevating-bar, of the llifting-clutch and the operating-lever having connection with the said Alifting-clutch and constructed to actuate the said clutches, in the manner set forth, to rero the operating-lever supported between the ears b and having connection with the liftingelutch, and the elevating-bar, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

WILLIAM ORCUTT.

Witnesses:

LIZZIE FRITZ, R. F. RUSSEL.

Images