US726286A

US726286A - Conveyer.

Info

Publication number: US726286A
Application number: US13155202A
Authority: US
Inventors: John Harmon
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-11-15
Filing date: 1902-11-15
Publication date: 1903-04-28
Anticipated expiration: 1920-04-28

Description

PATENTED APR, 28, 1903. J" HARMQN. GONVEYBR.

APPLICATION FILED NOV. 15, 1902.

N0 MODEL.

Witnesses iiniirn o I @TAlPlES JOHN IIARMON, OF CHICAGO, ILLINOIS.

CONVEYER.

5EECIFICATION forming part of Letters Patent No. 726,286, dated April 28, 1903. Application filed November 15, 1902. erial No. 131.552. (No model.)

To (ML whom it may concern:

Be it known that I, JOHN HARMON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Gonveyers; 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, reference being had to the accompanyingdrawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates particularly to an apparatus for raising building materials during the construction of buildings; and the object of the invention is to form an improved device which may be adjusted at various heights to deliver the bricks and mortar accordingly.

It includes a stationary frame and a vertically movable extension thereon, together with an endless chain and buckets to'carry up the material.

In the accompanying drawings, Figure l is a side elevation of the apparatus. Fig. 2 is a front elevation thereof.

Referring specifically to the drawings, 6 indicates vertical timbers, and 7 inclined timbers rising from a base-frame 8 and joined at the top, forming the fixed frame or tower.

The timbers are suitably braced and joined.

The conveyor comprises a pair of endless chains 9, which pass over sprockets 10 on a shaft 10 at the bottom of the inclined timbers of the tower- The shaft is geared up to a crank llto operate the conveyor. The chains carry buckets 9, suitable for brick and mortar, and these buckets slide on Ways or guides formed of a pair of rails 12, supported by cross-pieces 12 between the chains. The purpose of the guides is to prevent sag of the loaded chains.

To vary the height of the tower, an extension is used, comprising timbers 13, which slide against the vertical timbers 6 within keepers 6. These timbers are raised and lowered by pinions 14: on crank-shaft 14. at the top of the tower, which engage racks 13 on the inside of the timbers 13. The racks hinged thereto, into which the material is v dumped from the buckets and which may conveniently be entered into a window or other opening in a wall or allowed to project over a wall being built. The extension-timbers 13 have at the top a shaft 16, with sprockets 16, around which the chains pass, and the vertical frames (3 of the fixed tower have near the top thereof a-similar shaft and sprockets 6, ove which the chains pass in their downward run.

The guides and chains are formed in sections or pieces and may be lengthened or shortened by adding or removing sections, as desired. The cross-pieces 12 can be shifted to bring the guides to the proper inclination, according to the inclination of the upward run of the chains produced by raising or lowering the extensions, and for the lowest height the conveyor-chains may be taken off the top sprockets 16 and run around the sprockets (3 only.

It will be understood that the adjustment does not have to be changed very oftensay a change for every story of the building. In operation the conveyor is stood up beside a building and put to use in a manner evident from the above description. The chute is hinged, as stated,.and hung by ropes 15, whereby its inclination may be varied.

The reason for having the three sets of sprocket-wheels at respectively the top and bottom of the tower and the top of the extension is to give the chains a triangular run, so that the descending buckets will not interfere with the top ofthe fixed tower, as they would if the chains were bent over the lower sprocket-s at the foot of the tower and the sprockets at the top of the extension only.

What I claim is 1. A conveyor comprising a stationary frame having belt-wheels at the top and bottom thereof, and a movable frame, having belt-Wheels at the top thereof, extensible versaid sprockets, having a triangular run, sub- [0 tically from the top of the stationary frame, stantially as described. and endless conveyer-chains passing around In testimony whereof I affix my signature said wheels, substantially as described. in presence of two Witnesses. 5 2. The combination with the stationary inclined frame having sprockets at top and bot- JOHN HARMON' tom, and the vertical frame extensible there- Witnesses: from, having sprockets and achute at the top, NELLIE FELTSKOG, of the endless carrier-chains passing around H. G. BATCHELOR.