US904551A - Lifting-jack. - Google Patents

Description

UNITED sTATEs PATENT oEEIcE- SIMON B. MINNICH, OF LANDISVILLE, PENNSYLVANIA, ASSIGNOR TO MARY ,0. MINNIUH, 0F

i LANDISVILLE, PENNSYLVANIA.

Application flied Januaryl 15, 1908. Serial No. 410,901.

To all lwhom 'it may concern:

Be it known that LSIMON B. MINNICH, a citizen of the UnitedStates, residing at Landisville, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Lifting- Jacks, of which the following is a specification, reference being had therein to the accompanying drawing.-

My invention relates to wagon vor lifting jacks and has for its object to produce a simple, cheap, durable jack, of great power, with ample range of adjustment and especially adapted to light wagons, and more simple of operation than the jack now in use as it can be entirely operated while the operator is in an erect position, without the necessity of stooping for the purpose of adj usting the jack under the wagon axle.

With these and other objects in 'View I have herewith illustrated and described my invention, but I do not confine myself to the exact construction as shown, as slight changes may be vmade in the construction without departing fromthe spirit of the invention, neither do I confine myself to any special material as my device may be con-, structed of any suitable7 1naterial ora-"'nr bination of different materials.

Corresponding figures indicate corres onding parts in all the figures of the drawing.

In the drawings: Figure l, is a side elevation of the jack in a raised position, and illustrates the jack made with a straight lever.. Fig. 2, 'is a side elevation of the jack in a lowered position, and illustrates the jack madewith a curved lever. Fig. 3, isa front elevation of the jack illustrated in Fig. 2 Fig. 1, is a detailed view-of the foot in section. Fig. 5, is a sectional view on the line A, B, of Fig. l. Fig. 6, is a detailed rear view of a part of the lifting lever, shwing the rack. Fig. 7, is an enlarged view-,ftlie shoe.-

1, and 1,` indicate the two sides of the main or lifting lever, which is formed by bending a piece of suitable materialin the center to formvthe hand loop 2, ,then bringin its free ends together against the outer.

si es of a shoe 3, containin a rubber block 4, projecting therefrom, an secured within said shoe andbetweenuthe ends of the main lever 1, 1, by the bolt 5, passed therethrough, while said shoe 3, is providedl with the stops 20, to confine its action whilefreely swing; l

i ing on the bolt 5, to giveiit a firm Contact with the groundv independent of the position of the lever. e

At a suitable distance between the hand lloop 2, and the shoe 3, between the inner .sides of the lever sides 1, l, is rigidly secured the rack plate 6, by the bolts or rivets 7, 7, in such a manner that the points of its teeth are flush with the rea'r edges of the levers 1, 1, and its back is below the front edges of said lever sides, thus forming a groove or recess 8, and the rear edges of said lever sides are cut or milled to correspond and registerwith the teeth-of said rack.

Above the upper end ofthe rack 6, be-` tween the sides of the lever sides 1,1, is pivoted one end `of a brace or leg 9,10 the pivot 10," while the other end of said eg is provided with the socket 18, containing a rub ber block '19. Resting against and in slidable contact with the front edges of the lever 1, l, is the adjustable bearing block 11, formed with the tongue 12, adapted tol be engaged by the groove 8, and act as a guide for said, bearing block 11. To the sides of .-'said 'bearing block are secured by the bolt l13passed therethrough the link -straps 14,

which embrace the outer. sides of the lever sides 1, 1, and have their rear ends connected by the bolt 15, which is also adapted to engage the teeth of the rack 6, and retain the bearing block in the desired position. The sides of the bearing block arev provided with bosses 16, which are designed for the links 14, to rest upon, while the block is being raised to a higher level and in this manner keep the bolt l5, from engaging with the teeth'of the rack 6, until the block is released.

I have here shown my invention with two forms of main lever, that in Fig. 1, being straightand that in Fig. 2, having a backward bend from about the point where the le is pivoted, and when made in this form I l a d more rigidity by the use of the brace bars l17, andtl?, which vare secured to the sides of the'lever as shown and "also serve las' a guide and stay for theleg. The purpose ofthis form of back curved lever is to facilitate the use of the jack where the wagon 'body extends out some' distance in the rearofthe axle. l

T he operation of my device is so simple that it will lsurice to say that the block having been set to a height to correspond to los..

' below said hand-loop.

the axle when the jack is in alowered osition, the lever is placed with the block under the aXlel and is thenpushed forward by the hand loop until nearly in a perpendicular position, Where it is retained by the leg, until released by slightly raising the hand loop i and at'the 'same time ulling back' on' the leg', when it can be let own all the Way or retainedat-any desired point by allowing `the leg to drop and engage the floor or Having thus described .my invention what I claim as new and desire tos'ecure by Letters Patent is l 1. In a device of the class described, com. prising a lifting lever formed of 4suitable material, b ent in the center to form a handloop, and havingits end portions brought together, and secured to each other, a leg pivoted to said lever near said hand-loop, anda step secured lto the'front of said lever 2.' In a device of the classdescribed, comprising a lifting leverfor'med with a rearwardly curved handle loop, braces-secured at one end to the sides of' said handle loo and at the other end to the sides fsai lever near its lower end, a leg' having one of its ends secured .in a pivoted manner be# tween the sides of said lever, means for pre-l ventinsaid lever from slipping upon the groun means for providing an ad]ustable step upon said lever,a and means for reguy lating and retaining said step in an-.adjustable manner upon' said lever, for the purpose set forth. y

3. In a device of the class described, comprising a lifting lever formed with a handle loop, sideibraces secured to said lever, a leg pivoted betweensald lever sides, a sh'oe embraced by the lower ends ofsaid lever sides leg pivoted between said lever sides, a socket formed upon the end of said leg, a resilient material contained Within said socket, a receptacle containing aresilient material and secured to the bottom of said lever sides, a rack secured between said lever sides, teetl cut in the rear side'of said rack, teeth formed on the rear edges of said lever sides and registering with the teeth in said rack, a step formed with a tongue on its rear side adapted to form a sliding contact with the inner sides of said .lever sides, shoulders formed upon the sides of said step, links having their forward ends secured to the sides of said step,` and their rear ends embracing said lever sides, a pin connecting the rear ends of said links and adapted to engage the teeth of said rack, for the purpose set forth.

In testimony whereof I aiiix my signature 1n presence of two witnesses. l

.l e SIMON B. MINNICH.

Witnesses:

CHAS. F. BOWMAN, MABEL L. LEFEvRn.

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