US473682A

US473682A - Crane

Info

Publication number: US473682A
Authority: US
Publication date: 1892-04-26
Anticipated expiration: 1909-04-26

Description

(No Model.)

J. VANES.

CRANE,

Patented Apr. 26, 1892.

UNITED STATES PATENT OFFIcE.

J OHN VANES, OF BRAZIL, INDIANA.

CRANE.

SPECIFICATION forming part of Letters Patent No. 473,682, dated April 26, 1892.

Application filed December 29, 1891. Serial No. 416.406. (No model.)

To all whom it may concern:

Be it known that I, JOHN VANES, a citizen of the United States, and a resident of Brazil, in the county of Clay and State of Indiana, have invented certain new and useful Improvements in Cranes; and I do hereby declare the following to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in cranes; and the object of the invention is to provide an improved crane of simple construction which can be easily operated an d readily moved about from place to place, as may be required.

W'ith these ends in view my invention consists in the combination, with a carriage, of uprights connected at one end and extending at right angles to each other, said connected uprights constituting what is technically termed in this art a quadrant, which is pivotally connected to the carriage so as to rock or oscillate thereon, a swiveled block carried at the upper end of one arm of the quadrant, a screw-shaft fitted in a threaded bearing in said block and geared at its lower end to a shaft which is j on rnaled in the carriage-frame, and means for rotating said screw-shaft to cause the pivoted quadrant to turn, and thus raise or lower a load attached to the other end of the quadrant.

My invention further consists of the peculiar construction and arrangement of parts, which will be hereinafter fully pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a crane constructed in accordance with my invention, and Fig. 2 is an end elevation of the same.

Likeletters of reference denote corresponding parts in both figures of the drawings, referring to which- A designates the frame or body of the supporting-carriage, and B the carrying-wheels which are suitably attached thereto. The

sides of the carriage, from a point near the middle thereof to the forward end, are inclined, as at a, and to the forward end of the carriage are attached swiveled guide or caster wheels C. A shaft D has its ends journaled in the side pieces or members of the carriage A, near the rear ends thereof.

E is the quadrant comprising the two arms E E, which are connected at their lower ends by a piece or casting F, which is pivotally connected to the carriage A bya pivot f, passing through the casting F and upwardlyextending ears or lugs g on the carriage A. The quadrant uprights E E extend at right angles to each other and near their outer free ends are connected by a brace rod or bar G. The upper free end of the arm E of the quadrant is bifurcated for a short distance, and in this bifurcated portion of the arm is journaled a block 11, which is provided with a threaded socket h, and in this pocket is screwed an adjustable threaded shaft K. The lower portion of the shaft K is made smooth and passes through the shaft D, and is secured thereto by a nut is. To the shaft 7c, just above the shaft D, is secured a bevel gear-wheel] L, and with this gear L meshes a pinion M, carried by one end of a short operating-shaft N, which is j ournaled in suitable bearings on the shaft D'and provided at its outer end with a crank-handle N.

O designates a hook or grapple attached to the free upper end of the arm Eof the quadrant.

The operation of my improvements is as follows: The hook 0 may be connected to the load or weight to be lifted, and by turning the crank N the screw-shaft K is rotated through the pinion M and gear L, and the upper end of the quadrant-arm E is lowered or raised. This causes the quadrant to turn on its-pivot f, and the free end of the arm E and its attached load are raised or lowered, as desired. The shaft D and blocks H turn on their bearings as the quadrantturns on its pivot, so that the shaft K is not bent or broken.

By making the sides of the carriage A inclined at the forward end thereof the nose or front of the carriage can be run under a car, wagon, 850., into which the load can be placed or from which it can be taken. The carriage Aand crane can be easily moved forward and back or turned in any direction.

Having thus fully described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. In a crane, the combination of a portable carriage, the quadrant pivoted at its angle to said carriage, a swiveled bearing carried near one end of the quadrant, an operating-shaft journaled in the frame of the carriage, a screw passing through the bearing on the quadrant and geared at one end to the operating-shaft, and means for turning the operating-shaft in its bearings, substantially as described. I

2. In a crane, the combination of a portable carriage having the inclined front, a quadrant pivoted to said carriage, a swiveled bearing arranged near one end of the quadrant, an operating-shaft journaled in the frame of the carriage, and a screw-shaft geared directly to the operating-shaft and passing through a threaded opening in the swiveled block, substantially as described.

3. In a crane, the combination of a portable carriage having its front inclined,aquadrant.

pivoted at its angle to said carriage and having the free end on one of its members bifur-v cated, a swiveled bearing arranged in the bifurcated end of the quadrant, an operatingshaft, and a screw-shaft geared to the operating-shaft and Working in a threaded opening in the swiveled bearing, substantially as described.

- In testimony whereof I affiX my signaturein presence of two Witnesses.

JOHN VANES. Witnesses:

SAMUEL W. CURTIS, HUGH MOGURTY.