US599432A - Wagon-jack - Google Patents

Description

(No Model.)

W. R. WILGOX. WAGON JACK.

No. 599,432. Pat ented Feb. 22.1898.

UNITED STATES PATENT WILLIAM R. IVILOOX, OF STEAMBOAT SPRINGS, COLORADO.

WAGON-JAG K.

SPECIFICATION forming part of Letters Patent No. 599,432, dated February 22, 1898.

Application filed April 1 7, 1 8 9 7.

To all whom it may concern.-

Be it known that 1, WILLIAM R.WILCOX, a citizen of the United States of America, residing at Steamboat Springs, in the county of Routt and State of Colorado, have invented certain new and useful Improvements in Wagon-Jacks and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in wagon-jacks, my object being to still further improve the construction set forth in my previous application, Serial No. 581,610, filed March 2, 1896, allowed April 23, 1896.

These improvements consist of the features hereinafter described and claimed, all of which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a side elevation of my improved device. Fig. 2 is a section taken through the center of the standard, which is double, its lower part being broken away. Fig. 3 is a vertical section taken on the line 00 m, Fig. 1. Fig. 4 is a horizontal section taken on the line y y, Fig. 2.

Similar reference characters indicating corresponding parts in these views, let the numeral 5 designate the post or standard, composed of two parts 5, their lower extremities being attached to a foot-block 6 of suitable dimensions to support the device in a stable position. The lever 7 is fulcrumed at the upper part of the standard between the two parts 5, as shown at 8. The short arm of the lever 7 is connected with the lifting-jaw 9 by a pin 10, which is adapted to engage a series of notches 9, formed on the jaw. To one side of these notches is formed a slot or vertical opening 9 of sufficient width to allow the pin to pass upward and downward or from one notch into another. The jaw 9 is provided with an offset or projection 9, located a suitable distance from'the top of the jaw. This distance is supposed to equal the difference in height between the front and rear The lever 7 is slotted,

axles of the wagon.

Serial No- 632,693. (No model.)

the lifting-jaw being inserted in its slot at the end of the lever. The lower extremity of the jaw passes between the two parts 5 of the standard. It is provided with two lugs 9 which engage vertical guideways or grooves 5, formed in the parts 5 of the standard. Hence the lifting-jaw is raised and lowered by moving the lever on its fulcrum. The jaw is locked in any desired position of ad justment by a rod or bar 12, having one extremity pivoted on the standard 5, as shown at 13. This rod engages a longitudinal groove formed in the lever 7 and is provided with a series of notches 12, which engage a pin 15, passed through an enlargement '7 of the lever. This pin passes beneath the rod 12, whose gravity causes the notches to normally engage the pin. The'notches are so constructed that they allow the long arm of the lever to move downward freely while the jaw moves upward, but the pin 15 engages the notches 12 and prevents the reverse movement of these parts.

To release the pin from the notches, it is only necessary to press the rod 12 into the groove of the lever 7, which groove is deep enough for this purpose. This movement of the rod may be easily effected as the hand grasps the lever 7.

Having thus described myinvention, what I claim is In a wagon-jack, the combination with. the standard having vertical guideways, the lever fulcrumed thereon, the lifting-jaw supported on the short arm of the lever and having guides adapted to engage the ways in the standard, the rod having one extremity pivoted on the standard at a point near the fulcrum of the lever whereby the said rod extends approximately parallel with the lever, the latter being grooved to receive said rod which is notched and supported in place by a pin passing through the groove of the lever and adapted to engage the notches in the rod, the said rod and lever being so arranged that both may be simultaneously and conveniently grasped by the same hand while operating the jack.

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

WILLIAM R. \VILOOX.

Witnesses:

EDITH HIMswoR'rH, ARTHUR V. SoHoNBoEN.

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