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Publication numberUS398525 A
Publication typeGrant
Publication dateFeb 26, 1889
Filing dateAug 25, 1888
Publication numberUS 398525 A, US 398525A, US-A-398525, US398525 A, US398525A
InventorsJohn Mccloskey
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
John mccloskey
US 398525 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Model.) sheets-sheet 1. J. MOGLOSKEY.


No. 398,525.. Patented Feb.. 26, 1889Kl N. Paran. Phmwumampncr. wmangwn. D c.

(No Model.) 2 Sheets-Sheet 2.



No. 398,525. Patented Feb. 26, 1889.

WITNLEEEE- Y INVENT ER- j 7 Mvg/lus OVH/L7 wyw@ :UNITED tiTaTes PATENT Orricn,



SPECIFICATION forming part of Letters Patent No. 398,525, dated February 26, 1889.

Application filed August 25, 1888. Serial No. 283,700. (No model.)

To all whom it may concern: vice. Fig. 2 is a longitudinal section of my Be it known that I, JOHN MCCLOSKEY, of device applied to a steam'pipe joint. Fig. 3 loston, in the county of Suffolk and State of is a longitudinal section of the device placed Massachusetts, have invented a new and Imon the end of a pipe. 5 yproved Expansion Device, of which the fol In Fig. l, A is the easing; B, the inlet-tube; lowing is a specification. C, the outlet-tube; D, the regulating-screw My invention consists of a tube whose sides turned by the hand-wheel D; E, the stuffingare provided with one or more convolutions,V box, and F the valve upon the valve-seat, all each extending around the tube, and each inconstructed as usual and making no part of 6o a io dependent of the others, and of such a shape the invention. H is a tube whose sides are that a longitudinal section of the tube preformed into the series ot" independent annusents two convolutions or series of convolular eonvolutions H of the shape of double retions, each convolution being of the shape of verse C curves or springs. As will be seen, a double C spring or curve, and the series on the two series exhibited by the sectional view 6 5' i5 each side being the reverse ofi. e., the reare the reverse o'fwnot parallel with-each verse otl parallel with-thc series on the oppoother. Each convolution is on a true circle, site side. These convolutions are not spiral, and a central passage is left clear longitudieach being on an independent circle or an innally through the tube. This tube is in this dependent plane, and do not extend so Afar toligure to be lled with any desirable liquid, 7o zo ward the center of the tube butthat a straight preference beinggiven, of course, to those that line may be drawn longitudinally through are highly expansible by the application of said center without coming in` contact with a heat, and is provided with one or more inlets convolution. This may be used in various t'or the admission oi' the liquid, said inlets beconnections where it is desired to convert ing preferably near the ends of the tube, and 7 5 force or pressure into motion. For example, being` provided with suitable sealingstoppers, it may be filled with any of the hydrocaras 71, whereby any possibility of leakage is bons-such as rhigoline, naphtha, gasoline, prevented. Any well-known liquid-tightseal dsc., any ol' which are highly expansible by ing device may be employed in place of the application ol' heat-and after having been simple stopper shown in the drawings. New 8o 3o sealed tightly, in any manner desired, will by applyingheat to this tube in any manner, elongate from the expansive pressure generwhether in the form of steam, electricity, or ated within said tube upon the application of other substance, the tube will expand by the heat. This it is enabled to do by the shape pressure or stretching ol' the C-curves, which ,y ot' said convolutions or reverse C-curves in t'orin the annular eonvolntions H in an ex- 85 5 thesidewallsol saidtube. Upon thcrcmoval act longitiullnal line-that is, a line drawn\ of the force or pressure the spring or power centrally through the tube-so that if `p he of the material of which the tube is made may valve H, which is secured to the lower end l1 cause said tubo to return or contract to its the tube, were raised from its seatand steam original length, thus converting force into relet in through the port B the tube whose up 9o 4o ciprocating motion g or said tube may be made per end is secured to the lower end ol' the regto return to its original length by means ol' ulating-screw D would expand longitudinally a counter-pressure acting upon the outside and force the valve down upon its seat, while thereof. as the temperature within the casinglowered Heat may be applied to the device in any the tube would contract and the valve be lifted 9 5 4.5 desired manner, such as in the shape of a from its seat, letting in more steam.

naked flame or by radiation, steam, elec- In Fig. 2,1 and J are steam-pipes, and K K tricity, hot air, dre. 'the collar forming the jointcutinto two parts In the accompanying drawings, in which to allow the application of my tube H, which similarletters of reference indicate like parts, has in this instance but a single convolution, loo i 5o Figure l shows a longitudinal section of a H. ln this case the tube is open at both i steam-regulator valve provided with my deends to allow the passage ot' the steam, and

n I n I 1s practically an expansion-Joint, the inovesion or lengthening of the tube, whereby its nient whereby the tube is elongated and shortends are forced away from each other on a 3 5 ened being derived from the contraction and straight line. elongation of the pipes I J. Any desirable material, whether metallic or 5 In Fig. 3 the tube is secured tothe end of a otherwise, inay be used in the construction of pipe, L, and is closed at its free or outer end. the tube. Elongation of the tube H by the application Having thus fully described my invention, 4o of heat-say to the contents of the pipe L what I claim, and desire to secure by Letters produces `1notion at the tree closed end of said Patent, is- 1o tube H. l. The hereindeseribed expansion device,

I do not elaiin as new an annular convoluconsisting of a tube whose sides are formed tion, even though said convolution niay be in externally and internally into one or more an- 45 section of the shape of a curve orare of a circle. nular eonvolutions of the shape in section of My convolut-ions are C-shaped, double and rereverse C curves or springs-1I. e., aros coin- 15 verse-t'. e., each convolution is of the shape prehending more than semieireles-whereby of an are of a circle which is greater than a longitudinal expansion or lengthening of the half-circle, (which is what I intend to convey tube may be obtained, substantially as set- 5o by C-sl1aped)-and in each convolution are forth. portions ot' two other arcs reversed, which 2. The herein-described expansion device, 2o when completechforin the greater partof the consisting of a tube closed at its ends and next convolutions. By this means, and bewhose sides are formed externally and intereausein each convolution there are no straight nally into one or more annular convolutions 5 5 portions, but only true arcs, each more than of the shape in section of reverse C curves or ./\i half a circle, thc expansion orlengtheningof i springs-z'. e., arcs coinprehending more than 2 5 Ythe tube is not only greatly enhanced,but the 5 semieireles-said tube containing liquid, -`^bending and strain of the oonvolutions are i whereby by the application of heat longitudidistributed as the tube is lengthened by the nal expansion or lengthening of the tube may 6o application ot heat.

There are inany positions and places in 3o which my peculiarly-shaped tube may be set;

l pose hereinbefore described.


l be obtained, substantially as and for the pur-v Witnesses:


but wherever the device is placed, and in whatever manner force is applied, the same result is obtained-viz., longitudinal expanl

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2749942 *Dec 26, 1952Jun 12, 1956Miner Donald BBellows
US3181432 *Oct 9, 1961May 4, 1965Robertshaw CompanyMeans for adjusting the effective area of a pressure responsive diaphragm
US6189433 *Dec 14, 1998Feb 20, 2001Tacmina CorporationPneumatically driven bellows pump
Cooperative ClassificationF16J3/047