|Publication number||US451501 A|
|Publication date||May 5, 1891|
|Filing date||Nov 10, 1890|
|Publication number||US 451501 A, US 451501A, US-A-451501, US451501 A, US451501A|
|Inventors||William C. Meeritt|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (1), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
W. C. MERRITT. WAGDN JACK.
No. 11i-31,501.l Patented May 5, 1891.
| u I I n ia dit'
UNITED STATES PATENT OFFICE.
VILLIAM C. MERRITT, OF lVASHINGTONVlLLE, NEV YORK.
SPECIFICATON forming part of Letters Patent No. 451,501, dated May 5, 1891.
Application led November 10, 1890. Serial No. 370,891. (No model.)
To all 10700711/ t may concern.:
Be it known that I, WILLIAM C. MEREITT, a citizen of the United States, residing at VaShingtOnVille, in the county of Orange and State of New York, have invented new and useful Improvements in Trigon-Jacks, of which the following is a specification.
My invention relates to an improvement in wagon-jacks; and it consists in the construction and arrangement of parts, hereinafter described and claimed.
The object of my invention is to provide a compact, strong, and cheap jack Jfor lifting wagons,&c. This object I attain by the construction illustrated in the accompanying drawings, forming a part ot' this specification, wherein like letters of reference indicate corresponding parts in the several iigures, in which- Figure l is a perspective view showing the lever raised, and Fig. 2 is a side elevation of the same with the lever lowered. c
In the drawings, A represents the standard having a cut-away front edge and a curved top B. The rear edge of the standard is cut away or recessed, as at C, and has a shoulder C C2, respectively, at its top and bottom, the upper end of the standard being formed by` the reduction ofthe edges into a rearwardlyextending projection D, through which a fulcrum-pin d passes.
E is a lever having its long arm formed to exactly fit the recess C of the standard and completelyT fill the same, The short arm of this lever is formed of two parallel metal bars e, rigidly secured to the side of the long arm and extending on bot-h sides of the standard. 'lhey are formed with openin gs th rough which the fulcrum-pin passes.
F represents the lifting-bar or seat, constructed with a stepped upper edge and a cnt-away inner edge, forming a supportingshoulder f and a curved lower end f. The
contour of this end ot' the lifting-bar is such that the lifting-bar will exactly fit the cutaway portion of the front edge of the standard, its upper curved end extending above the standard, and the rearwardly-extending portion F of the lifting-bar is seated on the top ot' the standard when the load is lifted, the lower end resting on the shoulder B. To the lower portion of the projection F is pivoted the short arm of the lever on either side. To retain the lower end of the lifting-bar in place, two links G are secured to the base of the standard on each side and the end,which permit the end to move out and at the same time retain it in its proper vertical position. By pivoting the short arms of the lever to the projection at the point shown below the vertical center the lifting-bar is moved in an arc and carried directly above and onto the standard, which receives the load, while the lever fitting in the recess in the standard acts as a brace or strengthening-strip, and is also parts ot my device can be made and substi-V` tuted for those herein shown and described without in the least departing from the nature and principle of my invention.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is
A lifting-jack consisting of a standard having a cut-away front edge and a recessed rear edge and formed with a rearward projection on its upper end, a lever fulcrumed on said projection and having its long arm adapted to occupy the recessed edge of the standard, its short arm formed of two plates extending on opposite sides of the standard, and a lifting-bar hinged to the standard and pivoted to the short arm ot the lever, substantially as described.
In testimony whereof I aix my signature iny presence of two witnesses.
lVlLLIAM (l. MERRITT. Witnesses:
ARTHUR C. FITCH, E. R. HULL.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US6556170||Apr 2, 2001||Apr 29, 2003||Fci Americas Technology, Inc.||Retractable and rotatable antenna for an electronic card|