US1564713A - Jack - Google Patents

Description

H. E. REITER Dec. 8l 1925- JACK 2 Sheets-Sheet l Filed Aug. 3, 1925 E. REITER Dlec.y 8,11925.

JACK

Filed Aug. 5, 1925 2 Sheets-Sheet 2 Patented Der.' d, QZE.

' HARRY E. REETER, 0F NAPGLEON, 01H10.

.application ed August 3, 1925. Serial No. 47,823.

.To all 'whom t may concern:

Be it known that l, HARRY E. ltni'rnn, a citizen of the United States, residing 'at Napoleon, in the county of Henry and State of Ohio, have invented certain new and useful llmprovements in a Jack, of which the following is a specification.

lThe present invention relates to a jack which is designed particularly for lifting vehicles, such as 'automobiles and the like,

with it is possible to lift a coiisideralole great' weight with the minimum expenditure of labor.

A still further very important object of the invention is to provide a jack having an exceedingly ,simple construction, one which is very strong and durable, inexpensive tomanufacture. edcient and reliable in operation, not likely to easily become out of order., readuly assembled and disassembled, and otherwise well adapted to the purpose for which it is designed.

lWith the above and numerous other ohjects in view as will appear as the descrip tion proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will hereinafter he more fully described and claimed.

lin the drawings Figure 1 is a top plan view of theV jack embodying the features of my invention,

Figure 2 is a side elevation thereof,

Figure 3 is an enlarged fragmentary end elevation showing one corner of the jack structure,

Figure 4 is a detail section takensubstantially on the line 4 4 of Figure 3,

Figure 5 is a detail view show-ing the pivoted knuckles of the lifting arms,

Figure 6 is a detail perspective view of one of the shoes,

Figure 7 is a fragmentary view of the lifting arms with another. form of shoe thereon, and

shoe.

Referring to the drawing-"sin detail it will he seen that numeral 5 designates an axle having gouriialed thereon wheels 6. in

other axle has journaled thereon wheels 8. @5

rlhe axles 5 and 7 are disposed in parallelism and one wheel 6 is aligned with one wheel 8. A housing 10 is journaled on'an inter mediate portion of the aide 7, and has rotatahly mounted therein a crank shaft 11, hav 7@ ing thereon a worm 12 disposed interiorly of lthe housing and meshing with a worin 13 keyed to the axle 7 within the housing 1U. Pinions 1d are fixed to the ends of the axle "i" and rack guides 15 are journaled hy means 75 of collars 16 to the axle 7 adjacent the pinions 14. lack hars 17 have sleeves 18 at one end journaled on` the axle 5. The teeth of these rack hars 17 are held in engagement or mesh with the guides 15.

Lifting arms 19 and 2G are arranged in pairs and have their ends pivoted together hy pins 21. The other ends of the arms 19 and 20 are engaged with the axles 'Z' and 5 respectively. Said other ends of arms 19- are in the form of sleeves 22 journaled on jthe axle 5 while' the said other ends of arms 20 are in the form of yokes 23, detachahly engageable with shaft 7. A pair of shoes 2i 9@ is provided with depending Shanks 25 slotted as at 26 and 27. rlhese slots 26 and 27 are rectangularly disposed to each other so that the shank may straddle the arms at their knuckle portions 28, and the pins 21 which 95 pass through these knuckle portions.

ln using the jack the same is pushed or pulled under the vehicle, and the crank shaft 11 is actuated so that the pinions 1t cause the rack hars 19 to move the axles 5 and 7 tolo@ ward each other. As these axles 5 and 7 move toward each other, the arms 19 and 20 are swung in relation to each other soA as to decrease the angle therebetween, thereby raising upwardly on the shoes 24h, and lifting 105 cause of-the worm 12, and Worm gear 13, 1W

since, as is well known, the'worm gear cannot rotate the Worm.

Figure 8 is a perspective view of said 60 pinions le@ hy rack El@ body and straddle the elbows of these arms naled on the axles, a pair of rack bars having one end journaled on one axle, pinions on v which is adapted to straddle one of the arms,

19, 20. A pair of lugs 31 depend from the and are providedpwith slots 32 for receiving the pivot pin 21.V With this shoe it is possible to use the jack under an axle or the like, and the shape thereof will prevent the axle from slipping therefrom.

It will be apparent that this jack structure is exceedingly convenient since it may be very easily and quickly placed in the proper position for lifting purposes, and after the same has lifted the vehicle or object it may be moved with the vehicle or object thereon to a desired position. The structure allows considerable leverage so that vehicles of great weight maybe easily lifted. Furthermore, becauseof the detachable engagement of the yokes 23 with the axle 5 it will be seen that the device may be easily stored in an out of the way position. The structure is very durable in spite of its simplicity, and the present embodiment has been disclosed merely by way of example since in actual practice it attains the featuresI of advantage enumerated as desirable in the statement of the invention, and the above description. It will be apparent, however, that numerous changes in the details of construction, and in the combination and arrangement of parts may be resorted to with' out departing from the spirit or scope of the.

invention ashereinafter claimed or sacricing any of its advantages.

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

1.. -In a jack, a pair'of axles, wheels jourthe other axle, guide means for holding the racks in mesh with the pmions, means for actuating the last mentioned axle, arms having their ends journaled on the axles and pivoted together, and shoes on the pivoted portions of the arms.

' 2. In a jack, a pair of axles, wheels on the axles, a pair of rack bars pivoted at their ends to one' of the axles, the other axle having a pair of pinions fixed thereto for meshing with the rack bars, rack guides on said other axle for holding said rack bars in mesh with said pinions, a pair of arms, onearm having one end'journaled on one axle, and the other arm having one end detachably engaged with the other axle, the other ends of said arms being pivoted together, shoes engaged with said pivoted ends of said arms, and means for rotating the axle having the pinions thereon.

3. In a jack, a pair of axles, wheels on the axles, a pair of rack bars pivoted at their ends to one of the axles, the other axle having al pair of pinions fixed thereto for meshino with the rack bars, rack guides on said other axle for holding said rack bars in mesh with said pinions, a pair of arms, one arm having one end journaled on one axle, and the other arm having one end detachably engaged with the other axle, the other ends of said arms being pivoted together, shoes engaged with said pivoted ends of said arms, and means for rotating the axle having the pinions thereon, said means comprising a housing journaled on the axle having the pinions, a w orm gear fixed to the last mentioned axle within the housing, ashaft journaled in the housing and having a worm within the housing in mesh with the Worm ear. g, In testimony whereof I aiix mv signature.

'HARRY E. REITER.

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