USRE3768E - Self and robert b - Google Patents

Description

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WILLIAM H. A BLISS, 0F NEWPORT, RHODE ISLAND, ASSIGNEE 0F HIM- SELF AND RBERT B.. LAWTON.

Lettera Patent N 23,033, dated February 22, 1,859; lreissue N 3,768, dated December 21, 1869.

IMPROVEMENT IN HOSE-COUPLING.

The Schedule referred to in these Letten Patent and making part of the lune.

Beit known that ROBERT B. LswcroN and WIL- LIAM H. BLISS, both of Newport, county of Newport,

and State of Rhode Island, did invent a new and imv proved Hose-Coupling; and that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this specification; said drawing being a longitudinalvcentral section ofthe invention.

v The object of this invention is to connect hose together in such a manner as to secure a tight joint, and admit of their being connected and disconnected with greater facility than was previously done.

The nature of the invention consists in having a part of one oi'Lthe thilnbles which are to connect the ends' of the hose, iitted into the other, with a circumferential groove around the inner one, having van ini clined side nearest the tight joint, to be formed by the coupling, and a pin, operated longitudinally through the outer thimble and against the side of the groo've, so that when the pin is moved in, it acts against the inclined side of the groove and forces the thirnbles t0- gether, and secures a tight joint where the joint is to be made between the two thimbles, and when the pin is moved out, it allows the thimbles to be separated.

To enablethose skilled in the art to fully understand and consti-uct the invention, I will proceed to describe it.

A B lepresent the ends of two pieces of hose;

C is a metal thimble or tube, attached to thc end of hose A; and 4 D is a thimble or tube, attached to the end of hose B.

The sc thimbles may be made of any suitable metal, and may be secured to the hose by metal bands, E E, which encompass the hose, and through which and the bands, and the ends of the thimbles, screws a pass, the ends of the hose being between the bands E E and the ends of the thimbles, as shown clearly in the drawing.

It will be seen, by referring to 'the drawing, that the'ends of thc hoseA B and bands E E abut against shoulders b ou the thimbles.

The outer portion of the thimble D, which is beyond its hose B, is smaller than the corresponding portion ofthe thimble C, so much so that D may fit within C, and the end ufl) abut against a packing or ground-seat, c, on ashoulder, d, which is formed within C, by its enlargement, it being understood that the ends of the thimbles within the hose may be equal in diameter. l

The thimblc D is grooved circumfcreutially, as shown at e, one side at least of'the groove being bevelled or inclined, so that the outer part is wider than the inner part, and on the thirnble C, a tubular tlanch is made,

with an opening through it, and through the thim` ble`O.

A pin, havinga rounded bevellcd or chamferred inner end, is to pass through this opening into the circular groove on the tbimble D. The pin is to be operated through this opening by means of a screwconllection, or in any other convenient or known way, but a screw for that purpose is preferred, so that by moving the pin inwardly, its end will come in contactwith the inclined side of the groove on thimble D, and force the end within the other thimble against the shoulder on the inside of thimble G, thereby making a tight joint.

The screw-connection for operating this pin may be made by having the pin screw into the iianch, by means of a. screw-thread on. the pin and on the interior surface of the anch, or by a screw-cap being attached to the pin and screwed on to the anch.

For the purpose of allowing the pin to ileely rotate when not disconnected from the thimble, and thereby preventing the saine part of its end from wearing at all all times against the inclined side of the groove or thimble D, it is preferred to make the pin with the stem h, which passes into a cap, li, and is secured therein by a pin or a small screw, which passes laterally into a roove in the stem, as shown at k.

The stem k is thus allowed to turn freely within thel cap i, and the cap i screws on the danch f, as shown in the drawing.

But it is not intended to limit this patent to the particular means herein described of operating the pin through thimble C, as this can be varied, and the coupling still contain the invention.

It is preferred to make the end of this pin, which passes into the groove or thilnble D tapering or rounded, but it is not intended to limit the patent to such formation of the end of tho pin, because it is obvious that without such formation the pin could be made .to act upon the inclined side of the groove, and tend to force the parts together, although not so advantageously as when tapered or rounded.

It is obvious that these pins, and their connections, maybe increased in number, so that there may be one or more.

And it is also obvious, that instead of a groove in thimble D, a tlanch surrounding it on the inclined side, for the pin to act against, would answer the purpose of forcing the parts together to make a tight joint, but a groove is preferred, because the luetal which forms the side of the groove opposite theinclined face furnishes a bearing against the internalsurface of the other thimble, and thereby prevents the thinible D from tilting.

From the above description it will be seen that by niittingtbe thimble D within and screwing down the pin against the inclined side of the groove a, in thimble D, the end of the pin will bear against said inclned side of the groove e, and force the outer end of thimble D against the packing or seat c, and thereby form a tight joint.

Having thus descn'bed the invention,

'What is claimed as new in a hose-coupling, and desired to be secured by Letters Patent, is-

. 1. The combination of the two thimbles, C and D, by means of a pin, operating longitudinally thrcugh the' outer thimble C, and against the l inclined side of the groove in the thimble D, so that the two thimbles will be forced together by the inward movement of the pin, and be liberated by its outward movement, substantially as described. l

2. The side of thev groove in D nearest to the joint to be formed, or to -the danch; constructed with an incline, substantially as described.

3. The combination of the t-hmbles O and D, cap

5,' and pin g, when constructed and operated substantially as described.

WILLIAM H. BLISS. Witnesse:

W. C. WITTER, A Clnnmus H. LEONARD.

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