US711955A - Grain-carrier for harvesters. - Google Patents

Description

Patented Oct. 28, I902.

No. 7u,955.

w. FOSTER. GRAIN CARRIER FOR HARVESTEBS.

(Application filed. Mar. 24, 1902.\

(No Model.)

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UNITED STATES PATENT OFFICE.

l/VILLIAM FOSTER, OF LAWTON, OKLAHOMA TERRITORY.

GRAIN-CARRIER FOR HARVESTERS.

SPEGIFIGATION forming part of Letters Patent No. 711,955, dated October 28, 1902.

Application filed March 24,1902. Serial No. 99,645. (No model.)

To all whom it may concern.-

Be it known that I,WILLIAM FosrER, a citizen of the United States, residing at Lawton, in the Territory of Oklahoma, have invented a certain new and useful Improvement in Grain-Carriers for Harvesters, of which the following is a specification.

My invention relates to the improvement of grain -carriers for harvesting-machines; and the objects of my invention are to provide, in conjunction with the endless-aproncarrying rolls, means for permitting an adjustment of the upper apron or belt rolls, and thereby prevent the choking or clogging of grain between the aprons or belts, and to produce certain improvements in details of construction and arrangement of parts,which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of an inclined carrier frame of that class which is ordinarily employed on grain -harvesting machines. Fig. 2 is a plan view of a portion of one of said carriers having my improvements,

showing for the sake of clearness a part of the endless apron broken away. Fig. 3 is an inner side elevation of the upper end portion of one of the side frames of the carrier, and Fig. 4 is an enlarged sectional view on line no wof Fig. 1.

Similar numerals refer to similar parts throughout the several views.

1 represents one of the parallel side frames of an inclined carrier-frame, and 2 represents one of the upper rotating rolls on which are carried the usual upper endless apron or belt 3.

4 represents the end spindles of the lower belt-carrying rolls, these end spindles being pivoted in the side frame-pieces 1 of the carrier-frame at points below the upper rolls in the usual manner. In the upper side of each of the side frame-pieces 1 and adjoining each end thereof I form a substantially vertical slot or mortise 5. On the inner side of each of the carrier side frame-boards 1 is arranged longitudinally an apron or belt guide bar 6, and in an opening in each end of this guidebar is secured an outwardly-projecting bearing-box 7 ,the latter extending loosely through and adapted to bear within the corresponding frame-slot 5. and form bearings for the spindles 2 of the upperrolls 2. The upper side of the outwardly-projecting portion of each of the boxings 7 is provided with a pin or stud 8, and with these pins or studs are connected the ends of an upwardly-bowed spring-strip 9. Each of these spring-strips extends on the outer side of the side frame-piece 1 and is provided in its central portion with an upwardly-projecting flange or lip 10, through which extends a bolt 11. This bolt may be made to enter the desired one of a number of bolt holes or openings 12, formed one above the other in a vertical bar 13, which is socured to and rises from the corresponding side frame-piece 1. By thus properly securing the center of each of the spring-strips 9 to the bar or standard 11 it will be seen that the ends of said spring-strip will exert a desirable downward pressure on each of the upper boxings 7, normally retaining the latter in the lower portions of the slots 5. Heretofore considerable difficulty has been caused by the tendency of grain under certain conditions to become choked or clogged between the under side of the upper endless belt or. apron 3 and the upper side of the lower belt or apron, (not herein shown;) but by the means described it will be seen that in case of a tendency of the grain to pack or choke between the aprons and between the rolls thereof the upper rolls will be pressed upward sufficiently to relieve the pressure on the grain and permit of the usual carrying operation of the aprons.

Having now fully described myinvention, what I claim, and desire to secure by Letters Patent, is

In a grain-carrier for harvesters, the combination with the carrier, side frame-bars 1 having slots 5 formed in their upper portions, of the upper endless-apron-carrying rolls 2 having hearings in said slots, springs exerting a yielding pressure on the bearing ends of said upper rolls and means for adjusting said springs to vary the pressure thereof, substantially as specified.

WILLIAM FOSTER.

In presence of C. O. SHEPHERD, JOHN FOSTER, Jr.

These boxings 7 receive

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