US555481A - Elevator for harvesting-machines - Google Patents

Description

' (No Model.)

J. B. GRIMMBTT ELEVATOR FOR HARVESTINGMAGHINES.

No. 555,481. Feb. 25, 1896.

rmsm. 014% W UNITED STATES PATENT OFFICE.

JOHN B. GRIMMETT, OF OORSO, MISSOURI.

ELEVATOR FOR HARVESTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 555,481, dated February 25, 1896.

Application filed March 28, 1893.

To all whom it may concern:

Be it known that I, JOHN B. GRIMMETT, a citizen of the United States, residing at Corso, in the county of Lincoln, State of Missouri, have invented certain new and useful Improvements in Elevators for Harvesting-Machines; 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 tomake and use the same.

My invention relates .to an improvement in elevators for harvesting-machines.

The ob,'ect of my invention is to adapt th elevator for use in either light or heavy grain.

The invention will first be described in connection with the accompanying drawings and then pointed out in the claims.

In the drawings, Figure 1 is a perspective view, partly in section, of an elevator embodying my improvements. Fig. 2 is a longitudinal section of the same. Fig. 3 is a side view of the same. Fig. 4 is a detail of one of the lugs.

Referring to the drawings, A is the usual elevator-casing, having slots at 1 and 2, as shown.

B is an upper drum-shaft on which is pivotally hung a pair of upper side bars, 3, in whichis journaled an idler-drum O, a driving-drum D being fixed on the drum-shaft B between the side bars, as will be fully understood from the drawings.

E is an endless canvas apron constructed as usual and passing around the idler-dru1n O and driving the drum D, being operated by power applied to the drum-shaft B in any suitable manner, as by pulley 4:, the end of the drum-shaft being extended beyond the casing A for that purpose.

Each upper side bar, 3, is provided with a lug 5 extending outward through the slots 1 and projecting a short distance beyond the sides of the casing A, these ends being enlarged and provided with studs 6, which enter and retain in place the lower end of springs 7, held at their opposite ends by rigid stops 8 fixed to the sides of the casing at the ends of the slots 1.

A similar endless apron, E, is located in the casin g A below the'upper apron, the construction of the supporting and driving mechanism fierial No. 467,996. (No model.)

side bars are forced downward, the springs 7 and 7 acting on the lugs 5 and 5.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

1. In a grain-elevator, an upper pair of side bars pivotally hung at one end, a lower pair of side bars pivotally hung beneath the free ends of the upper side bars, an endless apron mounted on each pair of side bars, mechanism for driving the aprons and a pressure device attached to the free end of each pair of side bars, substantially as described and for the purpose set forth.

2. In a grain-elevator, the combination with a slotted casing, of an upper and alower drumshaft journaled in the casing, an upper and a lower pair of side bars, each pair pivotally hung on its respective drum-shaft, an upper idler-drum j ournaled in the free ends of the lower pair of side bars, a lower idler-drum journaled in the free ends of the lower pair of side bars, an upper and a lower drivingdrum, each driving-drum fixed on its respective drum-shaft between the side bars, an upper endless apron passing around its respective driving and idler drums, a lower endless apron passing around its respective driving and idler drums, and a spring-pressed lug fixed to each side bar of each pair and extending outward through its respective slot in the casing, substantially as described and for the purpose set forth.

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

JOHN B. GRIMMETT. Witnesses:

H. P. Rnnns, J. B. SMITH.

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