USRE4605E - Improvement in hose-couplings - Google Patents

Description

JAMES Cx'COOKE.

Improvement in Hose Co upli'ng.

No. 4,605 missuedoct. 24,1871.

UNITED STATES PATENT OFFICE;

JAMES C. COOKE OF BRIDGEPORT, .COXNECTICUT, ASS IGNOR OF ONE-HALF IYTEREST TO ALBERT 'F. ALLEN, OF PROVIDENCE, RHODE ISLAND.

IMPROVEMENT IN Specification forming part of Lett To all whom it may concern.

Be it known that I, J .iMEs O. GOOKE, ofBridgeport, in the county of Fairfield, and State of Connecticut, have invented a newand Improved Hose or Pipe Couplin g; and I do hereby declare that the following specification, taken in connection 5 with the drawing furnished and forming a part of thesame, is a true, clear, and exact descrip tion thereof.

My invention consists, first, in so forming the two parts of a coupling that any two parts will come into proper relation with each other and thereby obviate any necessity for changing ends, as is usual with hose-couplings in common use. This I accomplishby providing each half of the. coupling with corresponding-alternating-male and female flanges, or parts that interlock with each other; and also, in a novel means for more securely holding the hose to the coupling, which consists in providing, at the hose end of the coupling, an annular projection for engaging with the surface of the hose; and also, in combining therewith a corresponding annular recess or groove, which, when brought in close relationwith each other, bear upon the hose when interposed between them, and also, at the same time, cause the interior of the hose, at the point of connection, to be on a line, ornearly so, with the inte-. rior of the coupling.

Referring to the drawing, Figure 1 represents a set of 'my improved couplings with hose attached. The faces are brought together ready for attachment, which is accomplished by turning them in opposite directions, as indicated by the arrows. Fig. 2 represents,.in end view, my

improved coupling, the same being the connecting-face. Fig. 3 represents the same in longitudinal central section through" line a: :0. Fl g. 4. represents the same in longitudinal central sectionthrough line 3 y. Fig. 5 represents the coupling' and holding-ring in section, with the hose interposed between. The two parts are represented as connected, but not brought closely to-' gether by means of the screw connection.

The interior of the coupling is straight, or nearly so, and corresponds in size, as far as may be practicable, with the interior of the hose with which it' is to be used. The connecting-face of the coupling is provided with two longitudinally- HOIVSE-CO'UPLIINFGS.

ers Patent No. 52,166, dated November 30, 1858; reissue No. 4,244, dated April 18,

1871 reissue No. 4,605, dated October 24, 1871.

vided with an annular channel or groove, (1. The connecting-face is also provided with two annular projecting flanges, 0. These flanges a and c are placed at opposite points of the periphery of the coupling, and occupy about four-sixths of the circumference, the remaining space being divided inally-projecting flanges a. Two pieces like those shown and described constitute a set. When placed face to face the flanges a are made to entered, are turned so as to cause the annular flanges c toenter the annular grooves d in the flanges it. These annular flanges c are slightly tapering, being thinnest at the ends adjacent to the spaces b, with the taper all upon theinner side, so that, when entered into the grooves (I, a drawing effect is produced by the contact of the tapering sides with the corresponding sides of the grooves (1. The projecting flanges a are provided with recesses, f, for receiving a hose wrench. Projecting studs or pins would serve a similar purpose. The hose end of my coupling has its exterior surface tapered from a thin edge up to a suitable distance, as shown in the draw ing at g, at'which' point a shoulder is raised, and a plane annular surface formed, upon which a male'screw thread is cut. The holding-bandi has its interior surface tapered, and at an angle corresponding with the exterior surface of the with an annular interior plane surface, in which a female screw is cut corresponding with the male screw on the coupling before described. The holding-rim, at itshose end, is also provided with an annular interior projection, m. The hose end of the coupling is provided with an exterior annular groove or recess, n,reversely corresponding in form and general character with the projection m.

lows: Thepholding-ba-nd is' detached from the coupling and placed upon the hose. The end of the couplingis then inserted into the hose as far as g. The holding-band i is then drawn up to the coupling, and the screws engaged and turned until the holding-band is drawn into its proper position. It will be observed that, from the time projecting lips or flanges, a, eachof which is pro the holding-band and the coupling are first conin half, forming the two spaces 1) between the I annular projecting flanges c and the longitudter the respective spaces b, and, when fully encoupling, from-its end to g. It is also provided The hose and coupling are connected as fol- I nccted until fully drawn together, the interme diate annular space between the tapering surfaces is gradually lessened, thus compressing the hose between them; and also that theannular projection m when made to engage with sufficient pressure against the surface of the hose,

compresses the hose between it and the edge of the other part of the coupling, and thereby securely holds it in position; or, when brought into proper relation with the corresponding groove n, with the hose interposed, by its peculiar action secures a tight joint, and causes the inner sur-- faces of the hose and coupling to be, practically,

" on the same line.

able to introduce the annular elastic packings e.

In some cases it may hedesir- Hax'ing thus described my invention, I claim as new and desire to secure byLe-tters Patent- 1.- The niale-aml-fcmale locking devices (1 (ll-111d 0 0, attached alternately to the connecting-faces of a hose-coupling, as and for the purposes specified.

2. The corresponding annular projection and recess 'm and 41, arranged with relation to each other on theholdiug-band and neck of a hose-- coupling, as and for the purposes specified.

3.- In combination with the exterior and inte' rior holding annular surfaces between which the hose is compressed, the annularpiojection m, for

engaging with the surfacepf the hose, substantially as described.

JAMES C. OOOKE.

W'itnesses:

Goonwm STODDARD,. E. D. TALCOT'L.

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