US45851A - Improvement in elevators - Google Patents

Description

UNITED STATES PATENT OFFICE.

ARHEUNA B. NIMES, OF BUFFALO, NEW YORK.

IMPROVEMENT IN ELEVATORS.

Specification forming part of Letters Patent No. 45,8541, dated January 10, 1865.

To @ZZ whom it may con/cern.-

Beit known that I, ARHEUNA B. NTMBs, of the city of Butt'alo. county of Erie, and State ot' New York, have invented a certain new and Improved VVrought-Iron Elevator- Leg for Grain or Coal 5 and I do hereby de clare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and the letters of reference marked thereon, making a part of this speciiication.

The nature of thisA invention relates to the construction of an elevator-leg ot' wroughtiron, the skeleton of the leg being formed of eight anglebars, placed one at each corner of the back and front trunks, said an gie-bars being connected together by diagonal braces of iiat bariron or by continuous plates of sheetiron, or both, riveted or bolted thereto in a manner to give great strength and stiffness to the leg.

Figure I is a side elevation of my improved leg, showing the diagonal bracing. Fig. II is a front elevation of same, and Fig. III is a transverse or cross-section. Figs. IV, V, VI, VII are sectional views showing` the combination of the diagonal bracing and sheetiron covering, and also the single application of the sheet-iron covering.

Letters of like name and kind refer to like parts in each of the figures.

A represents the elevator foot or box, which contains the foot-pulley A, over which the bucket belts or chains run. It is made of cast-iron and is open at the top and bottom. The foot pulley runs in journaled boxes a2, placed in slots c3, formed in the sides of the box.

at are adjustingscrews bearing upon the journal-boxes a2, by means of which the boxes may be moved downward in the slots in a manner to take up the slack in chains or belt carrying the elevator-buckets. The elevatorbuckets dip below the bottom of the box, and are protected by the guards a5, bolted to the box.

B B represent the front and back trunks of the leg, through which the elevator-buckets work, ascending through the front trunk, B, and descending through the back trunk, B. They are rectangular in cross-section, as shown in Fig. III.

C C represent wrought-iron angle-bars, forming the corners of the trunks B B. (See Figs. III and VI and VII.) These are strongly secured by bolts to the foot-box A and extend upward the required length of the leg and connected together at the top by 'the semicircular bars or arches o2 c3, which may also be formed of angle-iron or of iia-t bariron. The arches c2 connect the outside angle-bars or those forming the outside corners of the trunks B B, and the arches c3 connect the inside an gle-bars or those forming the inside corners of the trunks. A skeleton of the required form of the leg is thus formed, which for a grain-leg may be covered by plates, L of light sheet-iron, riveted to the angle-bars, (see Figs. IV and V,) but which for a coalleg may be left open, the angle-bars being held together by the diagonal braces D D, riveted or bolted to them, as represented. On the sides of the leg these diagonal braces extend across from the front to the rear trunk and tie them together.

The sheet-iron covering may be used in connection with the diagonal braces or they may be used separately. When used separately, the covering requires to be of heavier iron, to give the required strength to the leg. This construction gives great strength and stift'- ness to the leg, which may be made much lighter than the ordinary wooden leg in use. As a coal-leg it is also much superior, since it is less liable to be injured by lumps of coal catchingbetween the buckets and the trunks in which they move. When built for a coalleg, the entire front may be left open, as represented in the drawings, (see Fig. II,) thereby removing any possibility of the buckets being jammed or caught by lumps of coal spilling out, but for a grain-leg the trunks are necessarily entirely closed.

E represents the head-pulley, over which the bucket belt or chain runs, and E a spout, made of sheet-iron, into which the buckets discharge their load of coal or grain.

F represents endless chains, running over the head and foot-pulley, which have proper grooves or channels formed in them to receive the chains. The elevator-buckets are connected to these chains.

The chains are designed to be used only in the coa1-1eg, a belt being better adapted to carrying the buckets in a grain-leg.

Having thus described my invention, what Ielfm, and desire to secure by Letters Patent, circular arches c2 c3 and at the bet-tom by the iseasbironfoobbox A,substnyntially as described.

A wrought-iron elevator-leg constructed of wrought-iron angle-bars C, and connected and A. B. NIMES.

strengthened by Wrought iron diagonal braces W itnesses:

D, or by sheet-iron pla-tes L,'the two trunks of g GEO. 7. WALLACE,

the leg being connected at the top by the semi- W. Il. FORBUsH.

Images