US2716488A

US2716488A - Cob corn screen

Info

Publication number: US2716488A
Application number: US255215A
Authority: US
Inventors: Bernt J Fagerberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-11-07
Filing date: 1951-11-07
Publication date: 1955-08-30
Anticipated expiration: 1972-08-30

Description

Aug. 0, 1955 B. J. FAGERBERG 2,716,483

00B CORN SCREEN Filed Nov. 7, 1951 2 Sheets-Sheet 1 Fig.1

4 J E 4 A f l I Fig.2

Bern! J. F agerberg INVENTOR.

Aug. 30, 1955 B. J. FAGERBERG COB CORN SCREEN 2 Sheets-Sheet 2 Filed Nov. 7, 1951 F ig.3

Berni J. F agerberg INVENTOR.

United States Patent Ofiice 2,716,488 Patented Aug. 30, 1955 COB CORN SCREEN Bernt J. Fagerberg, Elbow Lake, Minn. Application November 7, 1951, Serial No. 255,215

2 Claims. (Cl. 209-414) The present invention relates to new and useful improvements in screens for use in unloading corn from a wagon onto an elevator to screen shelled corn, and debris\ from the ears of corn before reaching the elevator.

An important object of the invention is to provide foldable legs for the screen whereby the same may be conveniently handled and stored in compact form when not in use.

Another object is to provide a device of this character of simple and practical construction, which is eflicient and reliable in operation, relatively inexpensive to manufacture, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a top plan view;

Figure 2 is a side elevational view;

Figure 3 is a side elevational view of the screen in folded position;

Figures 4 and 5 are transverse sectional views taken respectively on the lines 44 and 55 of Figure 1;

Figure 6 is an enlarged sectional view taken on a line 6-6 of Figure 4;

Figure 7 is a rear elevational view of the foldable leg; and

Figure 8 is a perspective view of one of the braces for the leg.

Referring now to the drawings in detail, wherein, for the purpose of illustration, I have disclosed a preferred embodiment of my invention, the numeral 5 designates a grating type screen composed of spaced parallel longitudinal bars 6 welded or otherwise suitably secured on top of front and

rear cross bars

7 and 8.

Bearing sleeves 9 are welded under the ends of rear cross bar 8 and a semi-cylindrical bearing 10 is welded. under the center of the rear cross-bar. A substantially W-shaped leg 11 is formed of vertical end rods 12 united with inclined center rods 13 and arms 14 project horizontally from the upper ends of rods 12 for insertion in the bearing sleeves 9, being held therein by cotter keys 15 or other suitable fasteners. A horizontal bar 16 unites the upper ends of the inclined center rods 13 and is seated in the center bearing 10. A brace rod 17 is welded to the center rods 13.

Sleeves 18 are welded to the underside of the central side portions of the screen to receive the upper ends of U-shaped inclined braces 19 and the lower ends of the braces are received in sleeves 20 welded to the lower portion of the end rods 12 of leg 11. The braces are held in the sleeves by cotter keys or other suitable fasteners 21.

Stop lugs 22 extend downwardly from front cross-bar 7 to hold the front ends of the longitudinal screen bars 6 on top of one of the side flanges 23 of an elevator 24 of a conventional type, while the rear end of the screen is supported under the rear of a wagon 25 by the leg 11 and with the screen sloping downwardly toward the elevator.

The leg 11 and braces 19 may be detached from the screen to facilitate handling and storing thereof in a cornpact form, when not in use.

In view of the foregoing description taken in conjunction with the accompanying drawings, it is believed that a clear understanding of the construction, operation and advantages of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new is:

l. A screen construction comprising a rectangular grate, one end of which is adapted to rest on a supporting structure, spaced bearing sleeves secured to the other end of said grate, a supporting stand comprising a pair of upstanding rods and a central connecting portion, generally horizontally extending upper ends on said rods rotatably received in said bearing sleeves, sleeves fixed to the lower ends of said rods, and sleeves secured to said rectangular grate intermediate the ends thereof, U-shaped braces having their ends detachably engaged in said intermediate sleeves and said sleeves fixed tov said legs, said central connecting portion having a flat surface thereon contacting the bottom of said grate.

2. A screen construction comprising a rectangular grate, one end of which is adapted to rest on a supporting structure, spaced bearing sleeves secured to the other end of said grate, a supporting stand comprising a pair of upstanding rods and a central connecting portion, generally horizontally extending upper ends on said rods rotatably received in said bearing sleeves, sleeves fixed to the lower ends of said rods, and sleeves secured to said rectangular grate intermediate the ends thereof, U-shaped braces having their ends detachably engaged in said intermediate sleeves and said sleeves fixed to said legs, said connecting portion comprising a substantially U-shaped member having a bight portion and depending leg portions, said leg portions being secured at the free ends thereof to the lower ends of said rods, said bight portion being axially aligned with said inturned upper ends of said rods, a U-shaped bearing member on said grate axially aligned with said first named sleeves, said U- shaped bearing engaging said bight portion.

References Cited in the file of this patent UNITED STATES PATENTS 91,353 Lockwood June 15, 1869 188,748 McLean Mar. 27, 1877 317,813 Lucas May 12, 1885 330,754 Tuck Nov. 17, 1885 585,744 Farthing July 6, 1897 799,883 Argenbright Sept. 19, 1905 822,197 Evans May 29, 1906 1,235,433 Burrowes July 31, 1917 2,422,399 Erickson June 17, 1947 FOREIGN PATENTS 250,823 Switzerland July 1, 1948 867,639 France Aug, 18, 1941