US1545532A - Door jack - Google Patents

Description

July 14, 1925. 1,545,532

E. D. STUBBS noon JACK I Filed April 26, 1924 WITNESSES IN VEN TOR E izfizmusy W ATTORNEYS Patented July 14, 1925.

EDGAR DAVIS STUBBS, OF DETROIT, MICHIGAN.

DOOR JACK.

Application filed April 26, 1924. Serial No. 709,255.

To all whom it may concern:

Be it known that I, EDGAR D. STUBBS, a citizen of the United States, and a resident of Detroit, in the county of Wayne. and State of Michigan, have invented certain new and useful Improvements in Door Jacks, of which the following is a specification.

The object of the invention is to provide a door jack which may be used for steadying a door while putting on a lock or for other purposes, and which will hold the door at the desired elevation and angle.

Another object is to provide a door jack having the foregoing enumerated advantages and capacities and which is also of simple and durable construction, reliable and convenient in operation and easy and comparatively inexpensive to manufacture.

Other objects and advantages of the invention reside in certain novel features of the construction, combination and arrangement of parts which will be hereinafter more fully described and particularly pointed out in the appended claim, reference being had to the accompanying drawings forming part of this specification, and in which:

Figure 1 is a perspective view of the door jack in position to steady or elevate the door- Figure 2 is a bottom plan view of the door jack; and

Figure 3 is a view in side elevation, showing the door jack in the intitial and final stages of its operation.

Referring to the drawings, the numeral 10 designates a door engaging lever which is of elongated form and longitudinally curved so that the ends of the lever rise above the central portion thereof. The under side of the central portion is serrated or roughened, as indicated at 11 to better adapt this central portion to frictionally engage the floor and constitute the fulcrum of the lever. The upper side of one end of the lever is serrated or roughened, as indicated at 12, so as to be adapted to frictionally engage the door to be steadied or elevated.

A foot operated member 13 is provided and is pivotally connected, as at 14, to one end of the lever 10. The upper side of the member 13 is serrated or roughened, as at 15, and the free end of this member has its under side beveled, as indicated at 16.

With this arrangement the free end of the lever 10 is inserted below the door, as shown in Figure 3, so that the roughened surface 12 frictionally engages the door. The foot operated member 13 is then depressed by the foot so that the lever 10 is rocked about its curved central portion. This throws the end 12 upwardly and consequently elevates the door tothe desired extent, as indicated in dotted lines in Figure 3. The roughened surface 11 of the lever 10 frictionally engages the floor and prevents slipping and the roughened surface 15 of the member 13 prevents the foot from slipping from the member 13.

I claim:

In a door jack, a door engaging lever comprising an elongated, longitudinally and downwardly curved and substantially rigid bar, said door engaging lever having the upper side of its free end roughened and also having the under side of its central portion roughened, the central portion of the under side being engaged with the floor to provide a rocking fulcrum for the door engaging lever, and a foot operated member pivotally connected to said door engaging lever, said foot operated member having its upper side roughened and its free end beveled on the under side.

EDGAR DAVIS STUBBS.

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