US766699A

US766699A - Ear-corn-grinding mill.

Info

Publication number: US766699A
Application number: US12328202A
Authority: US
Inventors: Jorgen Jorgensen
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-09-13
Filing date: 1902-09-13
Publication date: 1904-08-02
Anticipated expiration: 1921-08-02

Description

No. 766,699. PATENTED AUG. 2, 1904. J. JORGENSEN.

EAR CORN GRINDING MILL.

APPLICATION FILED emu-.13, 1002.

no MODEL. 2 SHEETS-SHEET 1.

M Jaye 7a Jo zyemaaya No. 766,699. PATENTED AUG. 2, 1904.

J. JORGENSEN.

EAR CORN GRINDING MILL.

APPLICATION FILED SSE-P1213, 1902.

no MODEL. 2 SHEETSSHEET 2.

warmom (2073672 cjzzymsam;

Patented August 2, 1904.

PATENT OEEIcE.

J ORGEN JORGENSEN, OF SOUTH OMAHA, NEBRASKA.

EAR-CORN-GRINDING IVIILL- SPECIFICATION forming part of Letters Patent No. 766,699, dated August 2, 1904.

Application filed September 13,1902. Serial No. 123,282. (No model.)

To all whom it Wuty concern:

Be it known that I. JoReEN J ORGENSEN, a citizen of the United States, residing at South Omaha, in the county of Douglas and State of Nebraska, have invented new and useful Improvements in Ear-Corn-Grinding Mills, of which the following is a specification.

This invention relates to earcorn-grinding mills; and the object thereof is to provide an eflicient, durable, and easily-manipulated mechanism for grinding corn, and the peculiar manner of accomplishing the desired result will be specifically described hereinafter and illustrated in the accompanying drawings, in WlllCl1- Figure 1 is a side elevation of a grindingmill constructed in accordance with my invention. Fig. 2 is a top plan view of the same. Fig. 3 is a cross-sectional view of the mill on the line 3 3 of Fig. 2. Fig. a is a detail view of one of the corn-removing devices. Fig. 5 is a rear view of one of the grindingburs. Fig. 6 is a transverse sectional view through one of the burs. Fig. 7 is a face view of one of the burs. Fig. 8 is a detail view of a sleeve for securing the corn-removing devices in proper relation to each other, and Fig. 9'is a detail view of the feed-propeller.

The reference-numeral 1 designates a suitable base-frame supported on standards or legs 2. The frame is approximately rectangular in plan and supports a longitudinallyarranged centrally-disposed shaft 3, adjacent one end of which is a pulley 4, from which motion can be imparted to the shaft through the medium of a suitable belt. (Not shown.) Near the other end of the shaft is secured a collar 5, provided with peripherally-extending flange 6, having an opening therein. This collar is keyed to the shaft by a suitable keying deviceas, for instance, by a set-screw 7. Loosely sleeved on the shaft 3 is an elongated tube 8, provided with a peripheral flange 9, coinciding with and arranged adjacent the flange 6 on the collar 5. This flange 9 is also provided with a registering opening designed to be brought in alinement with the opening in the flange 6 and in connection therewith to receive a wooden pin 10, as will be explained hereinafter. The tubular sleeve 8 extends a sufficient distance on the shaft 3, and keyed thereon in any suitable manner are a plurality of shelling-collars, each of which comprises a ring 11, on the periphery of which is a plurality of radiating teeth 12. These teeth are arranged in series, and the respective shelling-collars are arranged so that the teeth will be in alternate alinement, whereby a spiral movement is imparted to the grain after it is torn from the cobs and is conveyed longitudinally of the device to the grinding-burs, to be referred to hereinafter. Resting on the cross-beams 13 of the frame 1 and parallel with the shaft 3 are the concaves 1 and 15. The concave 14 is rigid with relation to the remainder of the devices, while the concave 15 can be adjusted transversely of the machine through the medium of a transverselyarrangedthreaded rod 16, which is suitably secured in one of the longitudinal beams of the frame and is connected to the concave 15 in any suitable manner. By turning the handwheel 17 on the free end of the rod 16 a quick even adjustment can bemade and the concave 15 will be held rigid with relation to the remaining parts through the medium of a rod 18, which passes through the concave and through a disk 19, resting against the under side of the cross-beams 13, so that by applying a wrench or other suitable device to the nut 20 the lower edge of the concave 15 will be caused to bind against the top of the crossbeams 13 and hold it in proper relative position. Inter-posed between the longitudinal edges of the concaves 141 and 15 is a bar 21, the depth of which is less than the thinnest portion of the concave, so that acentral longitudinal groove or trough is formed to facilitate the conveying of the grain. The concaves 14: and 15 are provided with transversely-arranged grooves 22, which correspond to the teeth 12 on the shelling-collars 11. The adjustment of the concave 15 is made while the machine is motionless and free from material to be ground.

Arranged above the sheller formed by the construction just described is a hopper 23. (Shown in dotted lines in Figs. 1 and At a point adjacent the ends of the concaves is arranged a vertically-disposed circular grindingbur, (designated by the reference-n umeral 24,) which is held rigid with relation to the frame by means of asemicircular yoke 25, the ends of which are secured to the respective longitudinal beams of the frame 1. This bur is provided with a concentric opening 26, which is surrounded by a suitable flange 27, and secured on the shaft 3 in alinement with the openingis a feed propeller or paddle 28. The bur is provided on its face opposite to the ends of the concaves with a concave grinding-face 29, which is formed by providing a plurality of slots transversely through the same and inserting knives in said slots, which may be projected therethrough to any desired depth. The slots are closed in the rear by a flat backing-ring. 30, which can be secured to the bur by suitable bolts 31. In the event that the knives become worn, broken, or need to be replaced for any cause it will only be necessary to remove the backing-plate 30, and by inserting small strands of wire or strips of metal in the slots the knives can be projected a sufficient distance through the slots in the bur and the backing-plate 30 can be secured in place. A similar bur 32 is keyed to the shaft 3 and provided with an opposing face opposite to the concave face 29 of the bur 24:. This latter bur 32 is longitudinally movable on the shaft '3 by a spline fitting in the restricted portion of the keyhole-slot 33. From the rear of the bur projects a neck or collar 34:, around which is loosely secured a collar 35, carrying oppositely-disposed

arms

36 and 37, the extremities of which are internally threaded to receive the threaded end of the rods 38 and 39. By turning the nuts 40 and 41 on the threaded bars 38 and 39 the collar 35 will be moved longitudinally with relation to the shaft, and the adjustable bur 32 will be incidentally moved toward or away from the stationary bur to regulate the fineness of the meal.

All the parts being assembled and in proper relative position, the operation will be as follows: After motion has been imparted to the shaft through the medium of the belt and pulley 4 the grain is dumped into the hopper 23, from where it is fed into the sheller comprising the concaves and toothed collars, so that it can be torn from the cob. In the event that any obstruction becomes wedged between the concaves and the teeth the resistance caused thereby will be sufficient to break the pin 10 passing through the two flanges 6 and 9, so that the collar 5 will revolve with the shaft, but the sleeve 8 will remain stationary with relation to the concaves. Thus the operator will immediately be notified to stop the machine andremove the obstructions. As the grain is torn from the cobs it will be moved along the concaves owing to the alternate and the spiral arrangement of the teeth until it is at a point adjacent the inlet-opening 26 of the stationary bur 24. The propeller or paddle 28 will then feed it between the opposing faces of the burs, which will have a crushing effect thereon, converting the kernels into meal of varying degrees of fineness, according to the adjustment of the movable bur 32.

It will thus be seen that I have provided a cheap, durable, and efficient mill for grinding grain, and while I have specifically described what to me at this time appears to be the very best means of accomplishing the desired result I would have it understood that I reserve the right to make such slight changes and alterations as would suggest themselves from time to time without departing from the spirit of this invention or sacrificing any-of the advantages attained thereby.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

The combination with the shaft having thereon a plurality of shelling-collars, each: of e which comprises a ring having on its periphery a series of radiating spirally-arranged teeth, and toothed concaves coacting with the teeth, one of which is rigid, the other being transversely adjustable, said concaves having transversely-arranged grooves corresponding to the configuration of said teeth of said collars, of a flanged collar on one' end of the shaftbearing having an opening therein, a flanged tube having an opening registering with the opening in the flanged collar, and abreakable pin mounted in the openings of the collar and tube, substantially as specified.

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

J ORGEN J ORGENSEN.

Witnesses:

SALoM WALKER, L. C. GIBsON.