US286981A

US286981A - Joshua h

Info

Publication number: US286981A
Authority: US
Publication date: 1883-10-16
Anticipated expiration: 1900-10-16

Description

(ModL) J. H. WILLIAMS.

FLOOR JACK.

No. 286,981. 7 Patented Oct. 16, 1883.

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WITNESSES' INVENTOR:

ATTORNEYS.

Hill

UNITED STATES PATENT OFFICE.

JOSHUA H. WILLIAMS, OF EAST CRAFTSBURY, VERMONT.

FLOOR-JACK,

SPECIFICATION forming part of Letters Patent No. 286,981, dated October 16, 1883. Application filed February 11, 1883. (ModeL) To all whom it may concern.-

Be it known that I, JOSHUA H. WILLIAMS, of East Craftsbury, in the county of Orleans and State of Vermont, have invented a new and Improved Floor-Jack, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of my new and improved floor-jack. Fig. 2 is a longitudinal sectional elevation, showing the jack in position for use; and Fig. 3is an inverted plan view of thebase of the jack.

The object of this invention is to provide a simple and efficient jack for use in laying flooring or applying sheathing-boards; and it consists of the construction arrangement, and combination of parts, all as hereinafter described and claimed.

Referring to the drawings, A is the baseplate of the jack, formed or provided with the end pieces, a a, carrying the screw B, and side pieces, a a, for strengthening the base A and ends a a. The screw B is by preference held on an incline in the heads a a, as shown, and

is provided at its outer end with the rod or -A is formed the slot d, which is enlarged at its rear end to a size for passing over the head of the screw, pin, or nail d, by which the jack is held in place for use. The screw or nail d is to be driven into the floor timber or studding, (represented at f,) and the base A then caught over the screw-head, which will hold the jack securely in place and .allow the full power of the screw B to be applied through the head 0 to the flooring g, as will be understood from Fig. 2.

Instead of using the screw d, a nail or headed bolt may be used for holding the jack in place for use, in which case the floor timber or studding will be suitably bored to receive it, so that it can be easily removed for changing the position of the jack. I

The purpose of inclining the screw B is for slightly elevating it at its rear end above the floor-timber 9r studding, so that it can be turned by the handle I) with greater ease and convenience than if held on a straight line with the timber, and also tends to keep the flooring down while being forced home upon the flooring immediately preceding.

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

The floor-jack, made substantially as herein shown and described, consisting of the base A, screw bearings a a, side braces, a a, and inclined screw B, the base being formed withthe slot 01, and the screw provided with the swiveled head 0, as and for the purposes set forth.

JOSHUA HENRY WILLIAMS.

WVitnesses:

J. H. GEORGE, J. T. WILLIAMS.