US2037531A - Jack - Google Patents

Description

W. H. MOORE April 14, 1936.

JACK

Filed Dec; 5, 1954 2 Sheets-Sheet 1 I nventm' w. H. Moore I Attorney W. H. MOORE JACK Filed Dec. 5, 1934 2 sheets shet 2 Inventor Attorney Patented Apr. 14, 1936 UNITED STATES PATENT OFFICE JACK Application December 1 Claim.

The present invention relates to a jack designed for use in conjunction with an automobile lift such as is used in garages, automobile service stations and the like for lubrication purposes.

The object. of the invention resides in the provision of a jack which may be mounted across a conventional lift in such a manner that the jack may be applied to various parts of the automobile so as to facilitate different lubricating steps.

A further important object of the invention resides in the provision of a jack of this nature which is simple in its construction, easy to handle, strong and durable, inexpensive to manufacture, thoroughly efficient and reliable in use, and otherwise Well adapted to the purpose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention consists in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings:

Figure 1 is a top plan view of a conventional lift showing my jack structure mounted thereon.

Figure 2 is a detailed vertical transverse section taken substantially on the line 2-2 of Figure 1.

. Figure 3 is a vertical detail transverse section" taken-substantially on the line 3-3 of Figure 1.

Figure 4 is a. fragmentary plan View of the central portions of the channel bars.

Figure 5 is a detail vertical section taken substantially on the line 5-5 of Figure 1.

Referring to the drawings in detail it will be seen that numerals 5-5 denote the runways of a conventional lift such as is used in garages, service stations and the like. My jack is adapted to be mounted across these runways 5 as shown toadvantage in Figure 1. This jack includes a frame formed from a pair of channel irons 6-6 bolted together by bolts 1 and spacers 8 so as to be disposed in spaced parallel co-extensive relationship in rather close proximity to each other and the flanges of these channel irons 6 have at their centers notches 9 forming openings in which is disposed a casting comprising a cylinder l0 having a flange 1 I formed on its upper end and being annular and outwardly disposed and resting on the upper flanges of the channel irons and bolted or otherwise secured thereto as at l2. The cylinder i0 is internally threaded. A threaded shank I4 is mounted in the cylinder 10 and at its lower end is formed with a sleeve l5 the bore of which is at right angles to the shank l4 and through 3, 1934, Serial No. 755,794

this bore extends a handle bar [6 for operating the shank. On the upper end of the shank there is swivelly mounted a head l1 between which and the "upper end of the shaft is interposed a ball bearing 18. A pin, I9 fromthe head extends into a groove in the upper end of the shank so as to prevent accidental removal of the head.

This jack was designed primarily for the following three specific uses in car lubrication: To lift the front wheels clear of the drive when lubricating 1929, 1930, 1931 Chevrolets. As is Well known, these models require that the Alemite fittings on the lower front spindles can only be properly lubricated when the front wheels are turned at the proper angle. This operation of lubrication with my jack can be completed when the car is still on the lift. To lift the front axle of any model A Ford car in order to remove the downward pressure of the axle against the spindles, thus allowing grease to be easily forced through the lower Zerk fittings in these spindles. And to lift the weight off from the springs of any model V8 car when the springs are being sprayed. This particular job is facilitated by the use of a special hardwood block that is counterbored to fit the head of the jack screw.

Many other uses arise during lubrication work Where the jack is a decided advantage, however, from actual use I have observed that the three specific jobs outlined above will justify this jack.

It is thought that the construction, utility, operation, and advantages of this invention will now be clearly understood by those skilled in this art without a more detailed description thereof.

:The present embodiment of the invention has been described in considerable detail merely for the purposes of exemplification since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

A jack of the class described comprising a frame consisting of a pair of channel irons arranged in parallel relation and with their channels confronting, said channel irons being bolted together, a vertically arranged internally threaded cylinder, the confronting flanges of the channel irons at an intermediate point formed with registering notches surrounding the walls of the cylinder, a flange on the cylinder bolted to the channel irons thereby anchoring the cylinder against turning, a jack screw extending through the internal threads of the cylinder, said jack screw having a centrally disposed single ball receiving socket in the upper end thereof and a circumferential arranged groove below the end thereof, a ball bearing in said socket, a head on the end of said screw resting on said ball bearing, and a pin in said head extending into said groove for retaining said head on said screw.

WARD H. MOORE.

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