US851401A - Wagon-jack. - Google Patents

Description

N0. 851,401. PATBNTED APR'. 23, 1907.

H. G. GADY.

WAGON JACK. APPLIQATION FILED SBPT.17.1906.

HENRY G. OADY, OF PINE BLUFF, ARKANSAS.

WAGON-JACK.

Specification of Letters Patent.

Patented April 23, 1907.

Application filed September 17,1906. Serial No. 334,866.

To all w/w/u/ it away CON/0677b:

Be it known that I, I'IENRY G. Cam, a citizen of the United States, residing at Pine Bluff, in the county of Jefferson and State of Arkansas, have invented certain new and useful Improvements in IVagon-Jaeks, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in wagon jacks, and has for its object, the pro vision of simple and effective means for lifting heavy weights, which will be inexpensive of production, easy of manipulation, and entirely practical in all respects.

With these and other objects in view, my invention consists of a fulcrum post, a supporting arm, an operating lever connecting the fulcrum block and supporting arm and adapted to raise the arm, an angular supporting block slidable upon the arm, and means for moving the block.

l ly invention further consists of a lifting jack embodying other novel features of construction, combination and arrangement of parts substantially as herein set forth.

Figure 1, is a side elevation of my im proved wagon jack, in the first position as it is placed under the axle of a vehicle or any other object to be raised. Fig. 2, is a similar view of the same with the supporting block drawn up in position under the axle. Fig. 3, is a similar view of the device in the position of supporting the object. Fig. 4, is a perspective view of the lifting jack in the extended or non-supporting position. Fig. 5, is a longitudinal sectional view in perspective of the supporting block.

In the drawings: The numeral 1, designates the fulcrum post which is comparatively short and is preferably formed with a rounded upper end.

2, indicates the supporting bar formed with the lower inclined or pointed end 3, adapted to engage the base or support upon which the jack stands. An operating lever 4, is provided, to the lower end of which is secured the socket member or sleeve 5. This sleeve is rectangular in cross section and upon opposite sides thereof, are formed the two pairs of outstanding ears or lugs 6. The ends of the fulcrum post and supporting bar are each adapted to fit between the ears 6, of the sleeve, and bolts 7, are passed there through to connect the members together.

Slidable upon the supporting bar, is a block 8, having a longitudinal slot or opening 9, formed therethrough for the reception of the bar. This slot passes diagonally through the block so that the block stands out from the bar at an incline, and the lower corner of the opening is rounded as at 10, to engage the under side of the bar, and the diagonally opposite corner is Leveled, as at 11. The block may also be formed with transverse openings or slots .12, therein, which render it lighter, and form a lzetter surface for gripping the object to he raised.

In order to facilitate the moving of the block upon the i321, I provide a wire or cord 13, which is fastened to the block at the lower end, passes along the upper side of the harthrough a staple or eye i i, and is provided on the end, with a ring or suitable handle 15.

In operation, the supporting bar is placed under the object to Le lifted, the fulcrum post and operating lever being in sulstantially vertical positions as shown in Fig. l. The supporting block is then drawn up on the supporting i231 until it engages the oiiect, as in Fig. 2. The operating lever is then pushed downward, therehy raising the supporting bar, the post serving as a fulcrum, shown in F 3. The under side of the supporting bar rests upon the rounded upper end of the fulcrum post and the parts will remain in this position until the operating lever is again raised.

From the foregoing description taken in connection with the drmviugs, it will lie evident that I have accomplished all the objects herein set forth and have produced a practical and thoroughly ellicient liftingack.

I claim: Y

1. In a wagon jack, the combination with a fulcrum post, operating lever and supporting bar, of a block having a longitudinal slot therein to receive the supporting lrar, said block having locking engagement upon the supporting bar by reason of its fulcrumed arrangement thereupon.

2. In awagon jack, the combination with a fulcrum post, operating lever and supporting bar, of a step block having a diagonally arranged slot therein so as to he slidably fulcrumed upon the supporting bar.

3. The combination with a fulcrum post and supporting barconnccted by toggle joint, an operating lever, of a block slidable upon the supporting liar and adapted to lo frictionally locked thereon, and a flexible con and connections for drawing the block up- 10 Ward on the supporting bar. r

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

HENRY G. GADYi nection for drawing the block upward on the supporting bar.

4. A Wagon jack comprising a fulcrum post and supporting bar connected by toggle joint, an operating lever secured to said toggle oint, a block having a longitudinally arranged slot therein provided With a beveled end to engage the supporting bar so as to be slidably fulcr'umed upon the supporting bar,

/Vitnesses CHAS. K. DAVIEs, PHILIP S. MOLEAN.

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