US1133241A - Jack. - Google Patents

Description

LE ROY WILLOUR.

JACK.

APPLIUATION FILED AHL-24, 1914.

Ll @@ML Patented Mar. 2s, 1915.

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\ ,q @Hom/lmao THE NORRIS PETERS CO.. PHDIC-LITHO.. WASHINGTON. DV C.

LE ROY WILLOUR, 0F ASHLAND, OHIU.

JACK.

Specification of Letters Patent.

Patented Mar. 23, MM5..

Application led April 24, 1914. Serial No. 834,125.

To all whom t may concern Be it known that I, Lr. ROY INiLLoUn, a citizen of the United States, residing at Ashland, in the county of Ashland and @tate of Ohio, have invented certain new and useful Improvements inl Jacks, of which the following is a speciication.

My invention relates to improvements in lifting jacks, adapted for use in connection with automobiles and other vehicles, while not necessarily restricted to such use, and has particular reference to a jack embodying simple and inexpensive means for pivotally or rotatably connecting the driving member Or gear and operating lever or handle therefor, with the standard of the lifting jack.

An important object of the invention is to provide means for substantially lowering the cost of manufacturing the jack, by reducing the time consumed in its manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the manufacture of lifting jacks, particularly automobile lifting jacks, it is customary to provide a standard with a trunnion cast integral therewith, to rotatably receive a driving member or gear and a lever or handle to move the member or gear. To prevent these elements from slipping ofi.' of the outer end of the trunnion, a hole is drilled through the outer end thereof, to receive a Cotter-pin or the like. In some cases,

the outer end of the trunnion is screw-y threaded, for receiving a nut. In either case, the standard carrying the trunnion must be placed in a machine, to bore the transverse opening in the trunnion or to screw-thread the end thereof, which consumes considerable time, ordinarily five or more minutes. rlhe time thus taken. materially increases the cost of the manufacture of the lifting jack. Another well known method is to employ a stub-shaft. for pivotally holding the driving member or gear and operatinglever therefor. the stubshaft having an outer enlarged head, and an inner screw-threaded portion. 'Ihe standard has an opening cast therein, but this opening must be provided with internal screw-threads, for receiving the inner screwthreaded end of the stub-shaft. The disadvantages encountered in connection with this construction, is that considerable time is consumed in cutting the screw-threads in the opening in the standard, and second that the stub-shaft thus connected with the standard invariably works loose, whereby additional means must be employed to lock it against displacement.

In accordance with my invention, I provide a preferably tubular standard with preferably oppositely arranged openings, one opening being for the purpose of allowing a holding pin to be passed through the other opening, from the interior of the standard. This holding pin is provided at its inner end with an enlarged head and projects outwardly beyond the standard and is preferably formed of a relatively soft metal, or a metal which permits the end thereof to be readily spread or mashed. A bearingsleeve, preferably formed of a relatively harder metal is arranged upon the holding pin, with its inner end preferably fitting snugly within a recess formed upon the eX- terior of the standard. 'Ihe driving member for the lift bar or member and the lever for operating the same are rotatably or pivotally mounted upon this bearing-sleeve. rIhe outer` end of the holding pin is spread or mashed to afford a stop-head and a washer is preferably interposed between this stop-head and the operating lever. By this construction, I am enabled to dispense with the time consuming operation of providing the trunnion with the transverse opening or screw-threads, and of cutting the screw-threads within the opening formed in the standard. I have found that, in this manner I can effect a saving of about 3 cents in the manufacture of each jack, due principally to the reduction in the time consume in the manufacture thereof. The particular advantage obtained in my construction, besides from the reduction in the cost of manufacturing the jack, is the provision of a pivot support for the operating member or gear and driving lever therefor, which cannot possibly work loose from the standard and which cannot possibly allow these elements to accidentally move olf of the same.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate llike parts throughout the same, Figure 1 is a side elevation of a jack embodying my invention, Fig. 2 is a transverse sectional view taken on line 2 2 of Fig. l, Fig. 3 is a side elevation of the upper portion of the standbodiment of my invention, the numeral 5 -designates a preferably tubular standard preferably formed square in cross-section and provided at its lower end with a base 6, as shown. This tubular standard is provided at its upper end with a preferably cylindrical and reduced extension or portion 7, having an opening 8 formed upon one side thereof and an outwardly extending boss 9, formed thereon and preferably arranged diametrically opposite the said opening. The boss 9 is preferably cast integral with the standard and is provided with a preferably centrally arranged opening 19, leading into an inner enlarged vrecess 11 in registration with opening 10. The boss 9 is provided with a preferably cylindrical outer recess 12, for a. purpose to be described.

Mounted to move longitudinally within the 4tubular standard 5, in slidable engagement therewith, is a preferably screwthreaded lift member or bar 18, carrying a horizontal driven bevel gear 14, having screw-threaded engagement therewith and slidably engaging the upper end of the eX- tension or portion 7, as shown. At its upper 'end the lift member or bar 13 has a head 15 secured thereto by any suitable means. Secured to the lower end of the lift member or bar 13 is a block 13,fitting within the tubular standard, and preventing the lift member or bar from turning upon its longitudinal aXis.

The numeral 16 designates a holding pin, preferably formed of a relatively soft metal or a metal which VVwill permit the outer end of the pi-n to be readily spread or mashed.

Formed integral with the inner end-of this holding pin is an enlarged head 17, adaptedto t within andV held by the recess 11. Arranged upon the holding pin 16 is a bearingfsleeve 18, preferably formed of a relat-ivelyhard metal or a metal harder than the metal of the holding pin. The inner end of the bearing-sleeve 18 fitssnugly within the recess 12, as shown. Rotatably mounted upon the bearing-sleeve 18 is a driving member or bevel gear 19, engaging with the driven bevel gear 14, and also slidva-bly engaging the outer face of the boss 9, as shown.

The numeral 20 designates an operating handle or lever embodying a laterally eX- tending crank 21, carrying a laterally ofi'- set and inwardly extending apertured head 22, which is pivotally mounted upon the outer en'dof the bearing-sleeve 18, as shown. Piv'otally connected with the outer end of the crank 21 is a double acting pawl 23,

adaptedwto engage teeth 24 formed upon the periphery of the driving member or gear 19, to turn the same in either direction, as may be desired. A washer 25 is preferably arranged upon the outer end of the holding pin 16, the free end of this holding pin being spread or mashed, providing a stophead 26, as shown.

In assembling the different elements of the lifting jack, the holding pin 16 is first passed through the opening 8, and then through the opening 10, the head 17 thereof remaining in the recess 11. The bearingsleeve 18 is then placed upon the holding pin with the inner end thereofl fitting within the recess 12. The driving member or gear 19 is now mounted upon the bearingsleeve and the apertured head 22 is placed upon this bearing-sleeve outwardly of the driving member or gear 19. rl`he washer 25 is now arranged upon the outer end of the holding pin. The elements thus assembled are now brought in proximity to a fixed object, such as an upstanding bar or the like, which is inserted through the opening 8 to engage the head 17, for retaining the holding pin 16 in place, while the outer end thereof which normally extends outwardly beyond the washer 25 for a substantial distance, is spread or flattened by striking the same with a hammer or the like, forming the stop-head 26. The lift member or bar 13 is now passed into the tubular standard 5 through the lower end thereof, the driving gear 14 mounted upon the upper end thereof and the head 15 secured upon the upper end of the same. It is obvious that by swinging the handle 2O up and down, the pawl 23 will rotate the driving member or gear 19 in either direction, depending upon the direction in which this pawl is thrown, with respect to the operating lever.

It is to be understood that the `form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having described the invention, I claim 1. In a jack of the character described, a tubular standard provided near its upper end with an opening and an apertured outwardly extending boss arranged opposite the opening, a headed holding pin adapted to be passed through the opening and through the apertured boss with its head disposed interiorly of the tubular standard, a bearingsleeve carried by the holding pin, a lift-bar mounted to reciprocate within the tubular standard, means to raise and lower the liftbar embodying a driving member rotatably mounted upon the bearing-sleeve, means to rotate the driving member, and means to rellO tain the driving member upon the bearingsleeve including an integral mashed head carried by the outer end of the holding pin.

2. lin a jack of the character described, a tubular standard provided near its upper end with an opening and an apertured outwardly extending boss arranged opposite the opening, a headed holding pin adapted to be passed through the opening and the apertured boss with its head disposed interiorly of the tubular standard, a bearing-sleeve carried by the holding pin, a lift member mounted to reciprocate within the tubular standard, means to raise and lower the lift member including a driving member rotatably mounted upon the bearing-sleeve, means to rotate the driving member including a lever pivotally mounted upon the bearing-sleeve outwardly of and adjacent the driving member, and means to retain the lever and driving member upon the bearingsleeve including an integral mashed head carried by the outer end of the holding pin.

3. In a jack of the character described, a tubular standard provided near its upper end with an opening and an apertured outwardly extending boss arranged opposite the opening and provided with an eXteriorly arranged recess communicating with the aperture of the boss, a headed pin formed of a relatively soft metal and adapted to be passed through the opening and apertured boss with its head disposed interiorly of the tubular standard, a bearing-sleeve formed of a relatively hard metal arranged upon the holding pin, a lift member mounted to reciprocate within the tubular standard, means to raise and lower the lift member including a driving member rotatably mounted upon the bearing-sleeve, means to rotate the driving member including a lever pivotally mounted upon the bearing-sleeve outwardly of and adjacent the driving member, a washer arranged upon the outer end of the holding pin and engaging a portion of the means to rotate the driving member, and an integral mashed head carried by the free end of the holding pin.

4. In a jack of the character described, a tubular standard provided near its upper end with oppositely arranged large and small openings, a holding pin formed of a relatively soft metal and provided at one end With an enlarged head and adapted to be passed through the large opening into the small opening with its enlarged head arranged interiorly of the small opening, said holding pin having its outer end mashed for providing a stop-head, a bearingsleeve formed of a relatively hard metal mounted upon the holding pin, a driving member rotatably mounted upon the bearing-sleeve, means to rotate the driving member, a lift member mounted to reciprocate within the tubular standard, and means operated by the driving member to raise and lower the lift member.

lin testimony whereof I aiiix my signature in presence of two witnesses.

LE ROY WLLOUR.

Witnesses MARIUS B. SMYTH, J. R. RYDER.

@oplet of thila patent may be obtained for five cents each, by addressing the Commissioner of retentir, Washington, D. G.

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