US1249757A - Automobile-jack. - Google Patents

Description

C. A. HOVEY.

AUTOMOBILE JACK. APPLICATION men AUG-8, 1913.

m Patented Dec 11, 1917.

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Be it knownthat T, Crane A. Hover, a ei tiaen ot the United States, residing at Port l luron, in the county oil? St. Clair and State ct ll liehigan, have invented certain new and useful il:]nl )1()IVt.11lUlTtS in. Antoniobilewlaclts, o't which the tlollowing is a specification.

My invention has in view a device of this character which may be rapidly and readily applied to the aXles of automobiles to be worked upon and as readily removed there from, which is applicable to machines haw ing a wide range of variation 1in the height oi? their axles and which is simple and inexpensive and easily manipulated.

In the accompanying drawing ll have illustrated the preferred form of my in vention tor the purpose of exemplifying the same, but it is to be understood that it is not limited to this particular embodiment but may be widely varied within. the scope ot' the 'lollowing claims in which I have endeavored to distinguish it from the prior art so far as known to me without, however, relinquishing or abandoning any portion thereof. The drawing which accompanies and "forms a part of the application illus trates my invention in side elevation.

Tn the particular embodiment illustrated the main frame consists of a handle and a guide which are preferably formed integral in a single casting. The guide 1. is skeleton. in construction and is substantially perpendicular to the handle 2 at the point of union andv a brace 3 also cast integral serves to provide additional. strength. Arbors or axles atlare formed integral with the main casting projecting on opposite sides thereof at a point approximately at the angle of the guide and handle. It will be seen that the handle is curved upwardly away from the jack and the wheels 5, 5 mounted upon the arbors are of such size that they support the inner or angle end off the handle above the ground, thus forming with the handle a 3-point support when the jack is in working position. The angular relation of the guide to the handle is such that when in this position the upper or supporting end of the jack is in a plane intermediate the axle and the point of the handle in contact with the floor or ground so that the axle is stably supported. The adjustable post 6 of the jack is also formed of a single casting and of a size and shape to fit within the guide member Specification of Letters Patent.

Patented Dec. 11, 1917.

.ttpplication filed August a, 1913. Serial No. 7835M.

of the frame and to readily slide therein. At its upper end the post member is .p1'ovided with a crotch or head 7, the upper surface of: which is termed on a compound curve. The forward end 8 inclines downwardly and the rear end 9 upwardly, as clearly shown in the drawing. In the particular embodiment of the invention illustrated the guide is substantially rectangular incross-section to prevent rotation of the sliding post with reterencethereto and near its upper end is enlarged laterally into a chamber 10, the bottom and top walls of which are inclined and which receives the oblong link-shaped pawl. 11. The latter is hung at its upper or rearward end upon a lug 12 forming substantially a portion of the wall of the guide and maintained in position by an ear 13 also cast integral with the frame structure and which may, it desired, be cast to permit the insertion of the pawl into position and subsequently bent over to retain the same, the casting being of sutliciently malleable material for this purpose. At its forward end the pawl is formed with a lip which constitutes a convenient manipulating means and may be operated either by the hand or by the toe of the person using the ack. The sliding post is suitably toothed or tormed with a rack on its forward edge as shown at 1-il to cooperate with this pawl and when it is desired. to lower the post the pawl. may be raised and the post drops to its normal position.

The manner of nsin the jack will now be readily apparent. The adjustable post is raised to the extent necessary for use in connection with the particular automobile axle to be handled and the handle raised to tilt the post rearwardly so that the jack may be backed under the axle, the handle then lowered and the axle received within the crotch or curved head of the post, where by reason of the form of said head it slips for wardly into position immediately over the post. When in this position the weight is so far -forward of the wheels that it by any accident or otherwise the automobile is shifted rearwardly with respect to the jack the latter rolls upon its wheels without unshipping the aXle from the crotch. The downturned end on the head of the sliding post is for the purpose of convenient manipulations by the hand or foot of the operator. The handle may be formed as a slngle piece integral with the frame but preferably for convenience in shipment I form the same in two sections as shown in the drawing, each section being recessed or cut away upon one side and formed With an extended tongue on the other, the tongue upon one member overlapping and fitting into the recess of the other member and the sections secured by transverse screws, bolts or rivets.

It Will be seen that my jack may be applied to an automobile by the simple operaion of moving it into the proper position With the handle lifted and then lowering the handle into contact With the floor or ground, and may be removed from the automobile by simply reversing this operation.

I claim:

1. An automobile jack comprising a handle, a guide extending substantially perpendicular thereto, and having a longitudinal guide-Way and enlarged chamber, a post adjustable in said guide-Way and having a rack upon one face thereof, a bearing formed upon one Wall of the guide, a closed loop journaled in the bearing extending through the chamber and completely surrounding the post, and engaging the rack thereon.

2. An automobile jack comprising a handle, a guide extending substantially perpendicular thereto, and having a longitudinal guide-Way and enlarged chamber, a post adjustable in said guide-way and having a rack upon one face thereof, a bearing formed upon .one Wall of the guide, a closed loop j1)lll'- naled in the bearing, extending through the chamber and completely sin-rounding the post, and a finger piece formed on the loop for raising the same.

CYRUS A. HOVEY. Witnesses:

ROBERT DOBBERMAN, JOHN B. MACAULEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1). 6.

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