US306265A - Lifting-jack - Google Patents

Description

H. G. LANE.

LIFTING JACK.

(N Modle'l.)v

, Patented 0st'. 7, 1884.

Wi/Luge; E E.

' which it may be desired to raise.

"UNTTnn SiTaTns FaTiewT Trice.

HENRY G. LANE, 0F BUGYRUS, CHI.

SPEGIFICATION forming part of Letters Patent No. 306,265, dated October 7, 1884.`

Application filed August 25, 1884. (No model.)

To aZZ whom, it may concern,.-

Be it known that I, HENRY G. LANE, citizen of the United States, residing at Bucyrus, in the county of Crawford and State of Ohio, have invented certain new and useful Improvements in Lifting-Jacks; and I do declare the following to be a full, clear,` and exact descrip` tion 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 letters and gures of reference marked thereon,which form a part of this specification. y

My invention` relates to lifting-jacks; and it consists in certain novel constructions and co1nbinations of parts, as will be more fully described hereinafter.

In the drawings, Figure lis a side elevation of my jack. Fig. 2 is a similar view with one side of the standard broken away. Fig. 3 is is a rear elevation of the jack. Fig. 4 is aside view ofthe adjustable bearing-bar, all of which will be described.

In carrying out my invention I prefer to use a base, A, on which to support the standard,

which consists of two uprights, B B, separated- 3, and connected at their upas shown in Fig. per ends by means of transverse connectingpieces B, which serveas bracesfor the standard and as keepers to retain the lifting-bar. This lifting-bar C is composed of the side bars, C/ C', and the adjustable bearing-bar C2. The bars C are held at their upper ends between the uprights and pieces B, and have on the opposite edges of their lower ends earsC, which extend laterally along and overlap the edges of the upright. By means of these ears the lifting-bars are held at their lower ends from lateral displacement, and their upper ends are similarly held between the pieces B B', the said lifting-bar being movable vertically between the uprights for the purposes of elevating the axle of a vehicle or other object The bearing-bar G2 is provided with a longitudinal series of perforations, C", and it is secured to the bars C C by means of a transverse pin, D, passed through coincident holes in the bars C and one of holes C* in bar C2, securing said parts together, as will be understood.

It will be seen that by passing the pin D sired, with reference to the bars C', so as to iit the device to objects of different heights from the ground.

While the lifting-bar may be elevated by any suitable form of lever or other expedient, I prefer in practice to use the lever E, having the right-angled arm E', and pivoted at c between the uprights B B near Athe lower ends thereof. This arm F/ of the leveris connected by a pitman or link, F, with the li.fting-bar. The lower ends of the link are pivoted to the extremity of arm E', and its upper end is pivoted to the lower end of the lifting-bar. I prefer to form these connections by inserting the upper end of the link between the bars G of the lifting-bar, and bifurcating or slotting the lower end of the link, and inserting the pointof the arm in said slot, as most clearly shown vin Fig. 3.

It will be noticed that the lower end or portion of the link is made of a thickness approximately equal the width of space between the upright, and iits suiiiciently close therebetween to prevent any considerable motion from side to side. By this means I obviate all lateral strain on the pivots or connection, and in crease the strength and firmness of the apparatns.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

' 1. In a lifting-jack, the combination, with the standard comprising two uprights separated and connected at their upper ends by cross-bars, of the lifting-bar held and movable vertically between the uprights andthe crossbars, and provided at its opposite Vlower corner with ears projected laterally along the edges of the upright and elevating device, substantially as set forth.

2. In a lifting-jack, the combination of the uprights connected at their upper ends by cross-bars, the lifting-bar held and movable between the upright and cross-bars :and consisting of the side bars provided at their lower ends with lateral ears, and the bearing-bar held and adjustable longitu dinallybetween said side bars and elevating devices, substantially as set forth.

IOO

3. The combination, with the uprights and the bars B, and provided at its lower corners the liting-bar, of an elevating-lever arranged with lateral ears G3, the lever E, pivoted at e between said lifting-bar and the link pivoted and provided with arm E', and the link F, all 15 at its upper end to the lifting-bar and at its arrangedand operating substantially as and lower end or portion made of :t thickness to for the purposes specified. closely flt between the'uprights, substantially In testimony whereof I affix my signature in as set forth. presence of two witnesses.

4. The lifting-jack, substantially as herein p described and shown, Consisting of the up- HENRY G LANE rights B B7 the cross-bars B B',oonneoting the Witnesses: upper ends of the uprights, the lifting-bar ISAAC CAHILL, held'and movable between the uprights and S. B. MATsoN.

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