US33592A - Improvement in cases for water and gas cocks - Google Patents

Description

UNITED STATES PATENT @Freieno eigener; iiicnarAiN, or ri-nLAentri-11A,.rnNNsvLvANIA.

IMPROVEMENT IN CASES FOR WATER AND GAS COCKS.

,Specilivation forming partol' Letters Patent No. $3,592, dated October 29, 1861.

lle it known that l, Gironde illelhwalx, ol the city of lhiladelphia, in the State of Ienn- Sylvania, have invented a new and Improved Protective Case for \\'ater and'tlas (locks in lfoot-lavemcnts; and l do hereby declare that the following is a full, clear, and exact description ot' the construction and operation of the Same, reference being had to the annexed drawings, making a part oli' this specification, in Which- Figure l represents a central vertical section of the improved ease, and liig. 2 a reduced top view of the saine without its lid, like letters indicating the same parts when in both figures.

The object ot my invention is the production of a protective case lor water and gas cocks in foot-pavements, which will not only be more durable in. the ground, but will be better adapted to resist displacement from the action of frost and the entrance of dirt and water thanthe iron-capped wooden cases heretofore used.

It consists in constructing the case (of terracotta or baked clay) iu the peculiar manner hereinafter described, and applying the same so that the cap shall be free to rise and fall with the pavement under the action of frost, While the tube which it covers remains stationary.

In the drawings, A represents the tube, B the cap, and C the lid of the said improved case.

'.lhc tube A is made of terra-cotta and in the form of a hollow conical frustum. It should be about two feet in length and of sufficient diameter to allow easy access to operate the plug of the cock by means of a lever-key, which is in common use for the purpose. lt is made, also, with a recess d at two opposite sides ot its larger or lower end, so that it may fit over the horizontal part ot' the cock or pipe in the ground in the usual manner. The cap ll is also made of terra-cotta, and in the form of a parallelopiped about nine inches square and three inches thick. It has a square opening e made through its iniddle of suiicient capacity to admit the upper or smaller end of the tube A. '.lhe upper part ot this opening is beveled outward and also enlarged, so as to afford a shoulderf'around it at about one inch below the upper side of the said cap, as seen in the drawings.

'lhe lid (l is made to rest upon the shoulder f, while it (its accurately against the beveled. sides ot" the opening c, with its upper side flush with the upper `side ot the cap ll, as seen in Fig. il. 'lhc lid may be made of either terracotta or cast-iron.

In the application ot' one ot these cases to a pavement the tube A must be vertically inserted over the cock in thc ground, so that its smaller end shall project about one and a halt` inches above the gravel or sand upon which thc paving-bricks rest. lhe cap i3 is then adj usted over it, so that the said projecting end of tube A shall enter the opening c, but at the same time not reach higher therein than the lineot' the bottom of the lid, that the latter may afterward be allowed to (it accurately and closely down in its seat, the said cap B resting firmly on the sandvin the Same inanas the paveinent-bri'cks. The cap B being about half an inch thicker than the pavingbricks, and therefore projecting about that amount above the upper surface of the latter, its upper edges may advantageously be rou nd* ed olli in the manner indicatedby the dotted lines thereat in Fig. l..

lt will be perceived that in the operation of this guard-case, applied as described, the cap B is let't free to rise and fall with the bricks -o f the pavement during freezing and thawing ten'iperatures, it being adapted, as described, to fit loosely around the upper end of the tube A, while the latter, from its conical form and smooth exterior, remains permanently in position in the ground; that whatever water in rainy weather may leak through the joint between the lid Cl and the cap l; will be conducted to the sand outside of the tube A instead ot into the tube A or box, as heretofore, and that water flowing over the pavement will also be prevented from access to the lid C in consequence of the elevated surface of the cap.

The superior durability of. terra-cotta in comparison with wood in the ground is well known, and the original cost of these improved guard-cases is but little, it any, more than the iron-capped wooden cases now in general use.

I do not wish to claim, broadly, the application to this purpose of terra-cotta or baked clay; but,

Having fully described the construction and mode of application of my improved cases and pointed out their. superior utility, what I claim as new therein of my invention, and (lesire to secure by Letters Patent, is-

llie (-:Lp l, provided with the opening-eend lid (l, as described, when the said cap is api plied and adjusted over the upper end of the lube A,so as to rest independently ofthe said tube directly upon the gravel or sand which may be used to support the latter and the usual pavement, in the manner described and set forth, and for the purposes specified.

GEORGE MCILWAIN. Witnesses:

BENJ. MORRISON, B. F. SHA'r'rUCK.

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