US286806A - Wagon-bed lifting-jack - Google Patents

Description

- (No Model.)

F. PUNK.

WAGON BED LIPTING JACK.

' Patented Oct. 16, 1883.

WITNESSES UNITED STATES PATENT FFICE.

FRANK FUNK, OF BEVERLY ILLINOIS.

WAGON-BED LlFTlNG-JACK.

SPECIFICATION forming part of Letters Patent No. 286,806, dated October 16, 1883.

Application filed September 8, 1883.

T0 aZZ whom it may concern.-

' Be itknown that I, FRANK FUNK, acitizen of the United States, and a resident of Beverly, in the county of Adams and State of Illinois, have invented certain new and useful Improvements in Wagon-Bed Lifting-Jacks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which V Figure 1 is a perspective view of my improved wagon-bed lifting-jack. Fig. 2 is a longitudinal vertical sectional view of one end of the same on line :0 m, Fig. 1. Fig. 3 is a perspective detail View of one of the frictioncams, and Fig. 4, is a similar view of one of the springs.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to wagon-bed lifting-jacks; and it consists in the improved construction and combination of parts of the same, as will be hereinafter more fully described and claimed.

In the accompanying drawings, A represents the frame of my device, which consists of four posts, A, connected at their tops by crosspieces A, which support a cross-beam, B, the ends of which extend out beyond. the said crosspieces. The outwardly-projecting ends of the cross-beam B are provided with longitudinal slots B, through which the holdingrods pass.

G 0 indicate theholding-rods, each rod having hinged to its lower end an eyebolt, D, for the purpose hereinafter specified.

E E represent the friction-cams, one of which is shown in detail in Fig. 30f the drawings, and which is provided with a head, E, central aperture, E, through which the holding-rod passes, and extension F, having aperture F, to adapt the cam to be connected by means of a link, G, to staples H on the under side of each of the projecting ends of the cross-beam.

I I indicate the springs which are employed in lowering the wagon, each spring consisting (N0 model.)

of two stout curved wires, I, having their ends bent backward, and a coiled spring, I, encircling the said wires between their bent ends, the springs being suspended by means of a staple t0 the under side of each of the outwardly-projecting ends of the cross-beam B.

The manner in which my improved wagon bed liftingj ack is operated is as follows: When it is desired to lift the bed from the other portion of a wagon, the holding-rods, which are pushed up out of the way when not in use, are drawn down, and the eyebolt 011 the lower end of each of the said rods is inserted through an aperture, K, suitably strengthened by plates K in either end of the wagon-bed, a key, L, being then placed through an aperture in the extremity of each eyebolt, for the purpose of preventing the bolt from slipping out while the wagon'bed is being raised or lowered. The wagon-bed may now be raised, one end at a time when only one person is employed in the operation, the friction-cams E E serving to hold the rods 0 O to whatever height the wagon-bed may be raised. To lower the wagon-bed, the loop on the lower end of each of the springs I is passed over the head E of the friction-cams E E, thereby raising the outer end of each cam, so as to allow the holdin rods 0 O to slide freely through the said cams. To the outer end of each of the friction-cams is attached a cord, M, which the operator allows toslide loosely through one of his hands while employing both hands in lowering the wagon-bed. By pulling down upon the said rope, the operator can lessen the rapidity of the wagon beds descent, or stop the descent altogether.

From the foregoing description, taken in connection with the accompanying drawings, the construction and manner of operating my improved wagon-bed lifting-jack will readily be understoodwithout requiring further explanation.

It will be seen that my improved wagon-bed lifting-jack is simple in construction, and, being devoid of all complicated parts, is not liable to break or get out of order.

By the use of my device one person can raise or lower a wagon-bed of any weight, in the manner previously described.

Having thus described my invention, I claim of the frictioneanis and the longitudinal slots and desire to secure by Letters Patent of the in the projecting ends of the cross-beam B, all

United States constructed and arranged to operate substan- I 5 In a Wagon-bed lifting-jack of substantially tiallyin the manner, and for the purpose shown 5 the described construction, the combination of and described.

the frame A and cross-beam 13, provided with In testimony that I claim the foregoing as my the longitudinal slots BB, frietioireains E E, own I have hereunto aifixed my signature in having brake-cords M, andsprings II, adapted presence of two witnesses.

to raise the outer end of the friction-earns when FRANK FUNK. IO desired, with the holding-reds C C, having eye- Witnesses:

bolts D D hinged to their lower ends, and Josnrrr P. V0013 adapted to slide through the central aperture I J OHN V0013.

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