USRE3577E - Island - Google Patents

Description

VTo all whom'z't may concern:

l A Figure? is a transverse section ofthe socket.

l l j mit. gina strut @Mira ELLIOTT P. eLEAsoNQor* PnovinEhen,- anche IsLAaD,

-L'tters I IatentYNo; 30,400, dated (-)cobc-i' reissue No; 3,577, ddteri August 3, 1869.

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Be it known that l, ELLIOTT 1.'GLnAsox, of Plovldenee, Providence county, and State of Rhode Island, `did invent a new and'improve'd Socket-Coupling, -which 4 is applicable for the purposeof uniting pipes,- or tubes,

for the conveyance otgas, or inflexible' tubingr oryc n- 'gine-hose for'the' conveyance of water; and l do hereby'.

' Vdeclare that A the following `is a full, clear, and exact description of the same, reference. being had 4to the annexed drawings, making a part of lthis specification,-

in 'which-.-

` Figure 1 is a view Aofan ornamental socketibr'connecting with gas-burner. v

. Figure 2 is a transverse section of the same, fixed upll' gas-burner. Y y

Figure 3 is aview of a coupling attached to a ilexibletube, for connecting witha portable gas-standard.

zirfbumer; 1

Filairey 4 is a transverse section ofthe saine.'

Figure?) is a transverse' section'of :those-coupling for the'conveyance of water. 1 Figui-e6 is a transverse section of the socket-shell, 'with the'inandrel and plunger used in filling thesame.

Figure 8 is a transverse section ofthe shell, with the mandrel and plunger, 'containing' a cylinder ofvv caoutchouc about to be'actedupon.

Figure 9 is a, transverse section o f the socket within the apparatus used for heating the gum. l

Figure 10 represents the gum 'cut' from the' sheet and torined into a cylinder. l

Similar letters of reference denote like parts in the different figures. V I

The nature of the present invention `consistsin constructing a socket with a recess fitted with an elastic packing, asmorefully hereinafter `set forth; in forming, within a metallic shell, a hollowcylindrical cushion of caoutchouc, or other like elastic gni'n, by means of heat applied wit-hin directly to thc gum, and to the 4shell without, whereby the gum is moulded to a desirable form, and vulcanized upon the inner surface of the said cushion, and made to adhere firmly to the inner walls of the shell, for the purpose of forming an airtight joint, wit-h a metallic pipe, tube, or socketpiece-inserted withinsaid hollow cushion, and applied "for conveying gas, water, Sie.

. .To enable others skilled in the art to make use of. Ilnyrinvention, I will proceed to describe' thesanie with reference to the drawings.

I construct'the shcllof the socket or coupling Gr of :,lllas or iron, cast in one piece, having au oval or globular swellingr of suiiicient capacity to receive or contain a proper quantity of gum to render the cushion elastic, and v'terminating in a contracted neck, aand f, upon each side thereof, one of which, a, is provided with a neck a. Y This nipple 11m Schedule referred-itc in these Letters Patent andmaking part d' the same.

thread cut inside, figs. 1, 2, and 7, or upon the'out'side, l

to receive the lowerv portion of a gas-burner, fig. 2, and v to provide fora socket-piece,'ornipple, J, figs.r 3, 4,

and 5, ofthe 'same diameter of' bore with the socket-- has a bulb, or swelling, j, and 5, against which the inwardly-projecting sides 'of the :cushion press or expand from behind, to prevent the said nipple from being easily or accidentally withdrawn. y To this nipple is attached a flexible tube, nl, or hose,

inthe manner hereinbefore mentioned.

The cushion D is formed within the swelling portion.-

of the shell," to the inner `:rails of which it' adheres firmly, to `prevent any escapeof gas or water upon the outside of the cushion, andhpon the inside said cushion is moulded'to a 'suitable forni, to receive a nipple or a gas-burner, and is rendered elastic by the process of vulcanizing, at-thesaine time it is moulded, I `whereby the opening throu'gl'r the said cushion expandsv to receive a nippleor tube-of agreater diameter, or to admit a tapering gas-homer, and contracts and embracesthe same with sntlcicnt force to form an airtight joint with the outer surface of such nippleorv burner.

This cushion is-formed within the shell, as above described,- by the lfollowingprocess:

A piece of soft gum,of the' size shown in g.10,No.

1, is formed into a cylinder, Nos. 2 and 3, by cement.

ing. This is placed within the shell, as shown in fig. 8, through which passes a hollow mandrel, d, from the end a, the upper e'ndof which enters the plunger h, which slides, with a close fit, into the end f of the shell.

The 'mandrel' is turned smaller within theswelling portion to impart the proper formA to the sides of the opening through the-cushion, and the` lower end of the `plunger is turned -in a conical forni, to give shape to thc entrance of the opening in .the cushion.

These surfaces, which mould the said opening in the I cushion, may be wrought in various forms, to produce a greater' or less bearing-surface upon the cushion, or to form a corrugated surface, or a'nuinbcr of proj ect-- ing rings or ridges, always providing for ythc withdrawal of the mandrel, by the yielding of the surface it has formed in the cushion.

Lhe mandrel :l is attached, by a. thread, to a cock, I, upon a steam-pipe, i, upon the bed-piece,l or table B, of a lever-press Resting upon said cock is a steam-chest, L, fig. 9, of

cast-iron or brass, in the centre of which 'is formed a deep, cup-shaped cavity, for the reception of the shell G.

andcontraction to said surface,

' the plunger-h is then forced' down, and, at the same time, steam is admitted to the steam-chest L,

' The heat from steam thus applied acts to fuse the gum, and.v cahses it to assume the form of the surfaces which encompass it. Y,

' Steam is then shut oi from the chest L, and the socket-shell permitted to coolV gradually,l which operation causes the gum to adhere irmly to the inner Walls oi' the shell, Whilel the continued heat from the mandrel vnlcanizes the gum immediately surrounding the same, and from thence penetrates outwardly 'toward the shell, but not to the entire'thickness of the gum;

' ivhichwould cause the cushion to separate from the walls of the shell.

The gum should be subie'ctedfro the action of heat `from three to five minutes, according to the temperature. Vhencock I. is turned, shutting ott' the steam,`

vplnnger 11... is raised and Withdrawn, and the shell is removed from the cavity in the steam-chest, and another shell supplies its place, to be operated upon in a similar manner; or, in lieu of the process just set forth, a solid plunger may be nsed, and the sockets having been acted up'on by the same, may be placed in asteam-chest, `and the rubber then vulcanized.

By vulcanizing the cushioii from the centre with 'a heated mandrel, the surface of the opening through the saine is rendered more elastic than any other portion-thereof, which gives a greater range of expansion and thus provides for the admission of tubes or burners of different or varying sizes.

Said surface also, from beingsubj ected longer to the intense heat, is neverhsoitened by contact with a gasburner which has been heated by the burning gas, lwhich is very desirable in its use. for drop-lights, so called,lnpon chandeliers.

The principal feature of the invention isfound in the fact, that the shell being made of one entire piece of metal, all' liability of the saine to leak when in use (which is of common occurrence in the case of sockets' I made in the ordinary manner, or in which the projecting necks are secured to the body of the socket, by being screwed upon the same,) is avoided.

' .ine greatly a gas-burner,

arm

Again, by making the shell inrone entire piece of metal, eheapness of manufacture is secured, in additionA to the durability and ei'ectiveness ofthe article.

vThe formation of the cavity ,to receive the packing is also a desirable feature, serving, as it' does, to retain the caoutchouc or like gum in'position, and thus addto thevalue of the article in question.

This cushion, to be effective, must adhere firmly to the shell, otherwise `the gas or Water will escape between it and the shell, and thus become inoperative and worthless for the purpose. v

I am aware that caoutchouc has been applied inal variety of Ways for this purpose, by inserting thick rings of tubing or disks of thin rubber, secured within the socket, between two surfaces which are united by threads vor screws, but snchsocliets have obj ections` which are overcome by my invention.

Havin g thus described my invention, and the method of producing the4 same, I would not be understood as claiming1 broadly the applicationof a cushion of caoutchouc, or other elastic substance, `Nithin a metallic shell, for forming a joint with a metallic pipe, tube, or as this has been done before 5 neither do I claim the application of heat to caoutchouc, for thepurpose of rendering the same elastic, as this has been previously patented.

I do not claim an elastic plug of India rubber, nor such a plug encased in a metallic shield, as and for the purpose described in the patents of Albert Fuller, of October 16, 1855, and ot August 30, 1859, respectively.

I claim- 1. A socket, provided with a recess, tted with an elastic packing, substantially as and for the purposes specified.

' 2. A socket-coupling, haring a hollow cylindrical cushion of caoutchouc, or other similar gum, adhering tothe inner walls of the sockebshelh and haring the surface of the opening through the same moulded in the desired form by compression, and made elastic by the action of heat applied thereto, in the Imanner and for the purpose s nbstantially` as herein specied.

3. In combination with such a cushion,a socketpiece, or nipple, having a bulb, or swelling ridge upon the end, which passes through the opening in said cushion,by the contraction of which opening the nipple is held securelyY within the'socket, as set forth.

. ELLIOTT P. GLEASON.

Witnesses:

J. (l. GnANenn, A. SrmrEY Dumm.

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