US1657701A - Pneumatic horse collar - Google Patents

Description

1m31, 192s. K 1,657,701

l. J. THOMSEN PNEUMATI C HORSE COLL'AH Filed July 2i, 1927 v INVENTOR4 7. J THU/)45977,

BY {hl/IWW:

, A T1 -URNEY.

PATENT OFFICE.

INGEBEBT J'. THOHBEN, QF MINDEN, NEBRASKA.

PNEUIATIC HORSE COLLAR.

Application led July 21, 1927. Serial No. 207,446.

same degree of pressure. However, the contracted port or passage will prevent the sudden rush of air pressurefrom one cell to the other, in the event that the load is suddenly shifted to one shoulder of the horse. The arran ement is such that the device may be covere by a iap, and will not interfere with the harnessand will be protected.

1n the accompanying drawings, formin a part of this specification, and in whic like numerals are employed to designate like parts throughout the same,

Figure 1 is -a front side elevation of a pneumatic collar embodying my invention,

Figure 2 is a similar view of the two cells included in the collar,

Figure 3 is an enlar sect-lon through the1 lower ends of the cel parts in elevation, Figure 4 is a transverse section taken on line 4 4 of Figure 3. l

In the drawings herein :for the purpose of illustration, is shown a preferred embodiment of my invention, the numeral designates the outer casingl of a horse collar, which may be formed of leatheror the like. This casing includes shoulder sections 11 to engage the opposite shoulders of the horse. The casin 10 is rovided at its inner edge with a rolf or bead 12, whichmay be stuffed with straw or the hke. The usual strap means 13 is employed to connect the upper ends of the shoulder sections 1 1. vThe bead 12 and shoulder-sections 11 are preferably continuous at the bottom.

The numeral 14 designates a air of pneumatic sacks or cells, preferab y formed of rubber, and of a shape, and size to lit within the shoulder sections 11. These cells are se arate, as shown.

e numeral 15 designates a combined in.- ating and pressure retarding device, em-

bodying a tubular body portion 16 carrying at its ends necks 17, provided with radlally projecting fianges 18. The lower ends of the cells 14 are adapted to be applied to the necks 17, and forced over the flanges 18,

thus being securely held upon the necks and effecting airftightv joints. The cells 14 being separate, either may be removed, without disturbing the other. The tubular body portion 15 is provided in its upper portion with a forwardly extending horizontal screw-threaded bore 19, receiving atubular member 20, having screw-threaded engagement therewith. The tubular member 1s 1nternally threaded at 21 for engagement with the screw-threaded portion 22 of a check valve device, embodying an inwardly opening check valve 23, to engage upon a seat 24. The check valve device is preferably of the construction usually employed upon pneumatic tires, and the invention is in no sense restricted tothe precise form of check valve device employed, the one shown being used simply for the purpose of illustration.'

The'tubular body'20 has its outer end covered by a removableqcap 25.' The bore of the tubular body is provided with a radial port 27, in communication with a longitudinal port '28, formed throu h the tubular body portion 15 and necks 1 The port 28 is in permanent free communication with the two cells 14. The port 28 has a restricted or reduced diameter and I. have found that by giving the same a diameter of about one-fourth of an inch, that satisfactory results are obtainable.. By providing the restricted port 28, both cells 14 are in permanent free communication, whereby they ma receive air pressure from the common ating valve and both cells will be inflated at the' same pressure. When the load is suddenly shifted to one shoulder only, of the horse, the restricted port 28 will retardthe sudden rush of air pressure from one cell to the other, and properly and radually .equalize the pressure in the ce pro ortion to the load.

T e device 15 is located beneath the bottom of the continuous bead 12, and is protected thereby, and covered by a heavy iiap 29, which may be stitched' tothe bead 12. This device is, therefore, fully protected and is out of the way of other parts of the harness.

In the use of the collar, it is a plied to the horse in the usual manner. Wphen it is lll - withthe tubular dium of the usual hose. Air presxurevv'illJ desired to inate the collar, the cap is.y removed and a' pump suitably -connected ody 20 through the mepass throu h'the bod ,port 27, and o'rt 28,y to both c 14, whibh will be" the same pressure. Afterinlntion, the hose is removed from the tubular body and the cap 25 returned in place` upon this tubular body and a ilap'29 employed to cover the cap 25. Both cells 14 are in permanent communication with each other and as the load varies slightly upon the shoulders-of the horse, the pressure may pass through the contracted port 28, from one cell tothe other. However, should the load be atly or rapidly increasedupon one shoul er the contracted port 28 will revent the sudden passageof air ressure om one cell to the other. Hence t e' contracted port will serve to dautomatically equalize the pressure in thel two cells.

It is to be understood that the form of my inventiomrherevvithfshown and described, 1s to be taken as a preferred example ofthe same, and that various changes in the shape,

of m invention, or

ated at 1 claim ing a air of side'sections, cells size and arrangement of parts mag .be resorted to without departing from t e spirit the scope of the subjoine claim. y

Having thus described my invention, I

In a horse collar, an outer casing comprisarranged in the si e sections and adapted to be inflated,

a se arabe coupling arran ed at the bottom of t e side sections' and aving extensions inserted within ,the ends of the cells, said coupling having a. contracted bore of unobstructed uniform diameter ythroughout its length and placin the cells. in permanent communication wit each other for equalizing the pressure in the cells and retardng the sudden rush of air from one cell to the other,.and check valve inlating device connected with the coupling and leading into the bore without obstructin such bore, whereby both cells may be simultaneously inflated at `the same 'degree of pressure by the air passing through the. contracted bore. In testimony; whereof I afiix m iignature.

INGEBERT J. THi) SEN. 1

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