US377784A - Carriage-lifting jack - Google Patents

Description

(No Model.) 'z's'heets-sn'eet Y- D'. SIMMONS. l ACARRIAGE LIFTING JACK.

No. 377,784l

Ypatenfed`1eb-1-4, 1888.

N: PETERS. Pwqngqpher. washinm. DA a (No Model.) I I v2'Sheetslheet f D. SIMMONS.

CARRIAGE LAIFI'ING JACK.

N8. 877.5784; 1 888888 1v Peb; 141,'1888.`

UNITED 'STATES PATENT OFFICE.

DAVID SIMMONS, OF NORTHVILLE, MICHIGAN.

CARRIAGE-LIFTING JACK.

SPECIFICATION forming part of Letters Patent No. 377,784, dated February 14, 1888.

l i Application filed October 15, 1887. Serial No. 252.425. (No model.)

To @ZZ whom it may concern.-

Be it known that I, DAVID SIMMoNs, a citizen of the United States,residing at Northville, in the county of Wayne and State of Michigan, have invented certain new and useful'Improvements in Carriage-Lifting Jacks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled lin the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon,which form a part of this specification.

This invention relates to a device for elevating wagons and carriages, andis commonly .known asa wagon-jack, the object of which is to provide av device for elevating wagons right arm or plunger, which by the action of and carriages, to repair or lubricate the axles thereof, that will be simple, durable, easily operated, and one that may be adjusted to enable its ready use on the various heights of vehicles.

The invention consists, briedy, of ya base support having a metal box or case mounted thereon, which receives the lower ends of the side rails' which constitute vthe frame of the device. Pivotally attached between the upright sides of themetal case is an arm or lever carrying on the pivoted end a circular metal head having a series of cogs or teeth on its periphery, which engage with the cogs of a metal plate attached to the front face of an upthe lever is caused to reciprocate vertically between the upright sides; and pivoted with said lever is a metal dog, which is automatically operated with the lever by means of lugs on the metal head of said lever, which have engagement with said dog, and by theaction of the lever is caused to be engaged with or disengaged from the cogs of the plunger. And to enable the raising of vehicles-whose height is greater than the distance reached by said plunger, I employ an extension-arm or auxiliary plunger, which is also located between the side rails and'adjacent to the former plunger, having connection therewith by means of a link or loop, which is pivotally attached to the front face of the plunger extending around the frame, and has engagement with a toothed or cogged metal plate secured to the back face said dog and lever.

View of the operating arm or lever and its cir-y of the auxiliary plunger, whereby Asaid plunl inafter more fully setv forth, and the essential features of the invention pointed out particularly in the claims. l

In the accompanying drawings, forming a partof the specification, Figure lis an isometrical view of the complete device. Fig. 2 is a front face view of Fig. 1, having the lever and dog removed to show construction'of the toothed metal plate which engages with Fig. 3 is an isometrical oularlytoothed metal head. Fig. 4 is an enlarged view of the metal dog. Fig. 5 is aside elevation of the device, having the metal case partly broken away. Fig. 6 is a vertical section taken on dotted line :v x of Fig. l, having lever and dog removed. Fig. 7 is a detail view of the'extension or auxiliary plunger.

With reference to the drawings, B represents the base u board, on which is mounted and secured by screws 2 the metal case or sup-` port H, which receives the lower endsiof the side rails, S, being attached 'thereto by screws 5.

' C shows a plunger located between the side rails, S, and extends the full lengthA thereof, having attached to its front face at the base, by means of screws 4, a metal plate, P, on the face of which is a series of cogs, f; and c is a journal-bearing box, also secured to the front face of said plunger by screws 3, which receives and pivotally supports the link or loop L, passing around the frame of the device, and engages at the rear thereof with the teeth Z of the metal Aplate Z, which is let into andsecured by screws t t to the back face of the auxiliary plunger O, as shown in Figs. l, 5, and 6.

A is an arm or lever having the handle h at the free end, and is provided at the other end with a circular metal head, E, carrying a series of cogs, u, on its periphery, and passes over the hole O of the metal dog and the holes s in IOO the sides of the metal case H passes a bolt, a, having the nut a for securing said parts in position, as shown in Figs. 1 and 5. It will be observed that when the lever A is in such position the 'cogs n of the metal head E mesh with the cogs f of the plate l?, attached to the plunger C, and that the lugs e e' on the metal head E are in such position and relation to the dog D as to automatically,with the movement of the lever, actuate said dog, engaging and disengaging it from the cogs f of said metal plate P, to hold or release the plunger C when raising or lowering a vehicle, as will be more fully set forth.

b is a strip or metal band which passes around the upper ends of the side rails, S, for binding said rails together and securing the plunger O and extension or auxiliary plunger C in position between the saine.

rlhe operations of the parts are as follows: The device, as shown in Fig. 1, is placed under the vehicle or object to be elevated in such position that the plunger,when forced up by the action of the eogs and lever, will come in contact with said object, elevating the same to the desired height, when by releasing the pressure on said lever the dog D will engage with one of the series of cogs f and retain said plunger and object in an elevated position; and to release or lower the same the lever is again thrown down until the lug e on the metal head E strikes the dog D and throws it back to the dotted position shown in Fig. 5, when by releasing the pressure on said lever the plunger and object will descend,carrying thelever back to the position shown in Fig. 1, and as said lever passes back to such position the lug e of the metal head E engages with the nose m of the dog, throwing it back to its former posi tion shown in Fig. l. When desirous of elevating an object ot' greater height than the Adistance reached by the plunger C, theextension or auxiliary plunger C', which is carried with the plunger C by the loop or link L, may

be raised or extended, by grasping the upper end and raising it with the hand,the link will drop over the notches, holding the plunger C elevated, as shown by dotted lines in Fig. when saidlink will engagewith one of thelower notches or teeth, Z', of the plate Z, th us holding said plunger Cin an extended position,where by when the lever is thrown down and the plungers raised, as before stated, a greater distance will be reached with the same movement of the lever.

It will be observed that as the link L is hung on an incline,and being pivotally supported at its front side, the rear side will naturally or by gravitation engage with the teeth of the plate Z as the auxiliary plunger is extended.

Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a wagonjack, the combination of the base, the metal case attached thereto, the side rails, the plungers C C', located between said side rails, the toothed plate P, attached to the plunger C, the toothed plate Z, attached to the plunger O', thelink coupling said plungers, the hand-lever having the toothed head which engages with the teeth of the plate P, the dog D, and the head E, having lugs e e', engaging with said dog, as and for the purposes specified.

2. In combination with the base, the metal case, the side rails, the metal band d,v the plungers G C', each having a toothed plate, as shown, the link L, pivoted to the plunger C, the lever A, having the toothed head E, with lugs ee',and the dog having the nose m, said dog and lever being pivoted to the inet-al case, sub stantially as and for the purposes specified.

In testimony whereof I ax my signature in presence of two witnesses.

' DAVID SIMMONS.

Witnesses:

WILLIAM H. AMBLER, FRANK N. CLARK.

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