USRE3829E - Improvement in branch stop-cocks for mains - Google Patents

Description

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vCocks for Mains; and I do hereby declare that the :ing part of this specification, in whichtire-engines had to be distributed, some of' them at a R. A. HILL, FOR HIMSELF, AND H. O.

LANE, Assiennnor n. A; HILL, or

WASHINGTON, DISTRICT OF COLUMBIA.

, l L Letters .Patent N 90,541, dated May 25, 1869; reissue No. 3,829, dated-February 8, 1870.

IMIPRO'VEMIIEINTl IKN BRANCH STOIPCOCKS 'FOR MAINS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.

Be it known. that I, R. A. HILL, of the city and county of Washington, in the District of' Columbia, have invented acertain Improvement; in Branch Stopfollowing is a full, clear, and exact description thereof, reference being had to the annexed drawings mak Figure 1 is a plan view.

Figure 2 is a. vertical section.

Figure 3 is a section on the line y y of fig. 1.

' Figure. 4 is a section o n the line :c z otf fig. l.

The saiue'letteis are used in all the figures to indicate inden'tical parts.

My invention relates to a., stop-cock for receiving -water from both mains at alcrossing, and connect-ing the four converging pipes to convey thewater to the' fire-plugs through a brauch pipe, having capacity to issue all the'water received from all the pipes; and

My iiiipi'ovements consist in` first, the form of' the induction-pipe, by which the size of the receiving-cylinder is reduced; secondly, in the use of a stop-cock, by which the water from the four converging pipes is carried into a lateral branch pipe placed below the mains, and of' snfcieiit capacity to convey all the water passing through the four pipes to'- the fireplugs; and also in certain peculiarities of construc' tion to be hereinafter specific-all y indicated in the following specification and claims.

Latei'al'brauch pipes for carrying water to the firepliigs from street-mains have'hei'etofin'e opened out of' one of the niaiiis only, so that in casewhere two oi' more, engines have been attached to difiereut parts of' the sanieiiiain, there has been found to be a delicient supply of water, where themains were small and inadequate tosnpply thenrall. Another disadvantage arising from this arrangement has been that the considerable distance from the fire, requiring a large supply offhose, and impairing the efficiency of the eiigiiies Vand increasing the time necessary f'or getting them into operation; L

I desire to provide means for supplying a number of engines from one set of' plugs, placed at the pavement at the corner nearest the fire.

I have shown in my Letters Patent No'. 90,540, bearing date May 25, A. I). 1869, an arrangement for six sets of freplugs, which ariangenient-iiiay be modified to inciease or diminish the number, according to the requirements ofthe town or city.

It is obvious that it would be impossible to supply such a number of' plugswith water drawn in the oi'-, diiiai-y manner from a single main, except in cases where very large mains were tapped for the purpose.

I am aware, however, that fire-plugs have beenA placed over the' intersection of' the mains in the centre of' the streetysnpplied with water drawn from both mains; but these have been subject tothe disadvantage that they had to Vbe placed below thenlevel of the street, for if' raised above the level of the street vthey would interfere with the ordinary use of the street.

The peculiarity in the arrangement of' my stop-cock and branch-pipe is that I draw out the water below the level of' the mains, and carry it in a lateral pipe of' a diameter sufficient to convey the water drawn from all the mains, and below the frost-line, to tireplugs placed at the edge of the street, and out of' t-lie way of' the travel on the street.

In the annexed drawings., I have shown four branch pipes, A A 85o., connected by flanges with the four converging pipes of' the mains. These four branch pipes are cast with the cylinder B, constructed with tianges B', above and belo\v,to connect it with the cap D and eduction-pipe G.

Ihe cylinder is bored'out through its entire length to receive the stop-cock C, and yhaving recesses at the upper and lower ends to receive the flange c, to be hereinafter described.v

v lhe stop-cock C is turned off to fit Athe inner bore of the cylinder B, within which it revolves. It is formed with ai chamber, C1, having four elongated openings, Cit-o receive the water entering from the branch pipes A. These pipes are round where they receive the watei' from the mains, but flattened so as to be extended in diameter vertically, without diminishing the area. of' the discharge at that part of' the pipe where it isconnected with the cylinder. This -tlatteiied form of the inlet openings is important, for

in proportion as the diameter is reduced may the diameter of the cylinder B be reduced.

In order that the openings C may register with the openings of' the branch pipes, and be tnriied when necessary against the blank surfaces 0f' the cylinder to shut ofi` the water, it is necessaryth'at the circumference of the latter shall be more than eight times that ofthe horizont-al diameter ofthe induction-pi pes. It is obvious, then, that an iinpoitaut object is gained by reducing the horizontal diameter of' the inductionopenings, as thereby the diameter of the cylinder is proportionately reduced.

The stop-cock C has upon its upper'andlower edges flanges, c, fitting iieatl y into the corresponding cli-.iinf'ersdii the cylinder B. The objectof these flanges is to hold the stopcock in place, and resist the pressure of' the water 'tending tolift itin its seat.

E, having onV its outer end n, segmental rack meshing into the pinion F, which revolves with the shaft F, in bearings upon l'rnme, b, bolted to the cylinder.

The shuit F maybe 'l squared lupon 'the upper end to receive n. socket, wrench,`or crunk, by which it may be vturned to open or 'close the stop-cock.

hen the openings, C, register with the openings A of the' brunch pipes', the water Ywill flow from the four pipes into the chamber G', and pass thence downward through the eduction-pipe G, which is bolted by flnnges to the bottom of the cylinder B.

The-gdiumeter of this eduction-pipe -should besuch that it will issue all the water passing through the four-branch pipes A. This will be eii'ected by making the diameter of theeductiou-pipe double. that of .euch ,ot' the mains.

. ernte .the stop-cock ou the mains in case of lire, nor

at any time except when it is 'desired` to shut ott' the wuter from the mains or from the pipe G. e By this means, it' repairs are -necessary' to theV freeplugs, the water may. be shut olf from them by turning the stop- Vcock G, und without a'ecting the supply of water to persons on the adjoining squares. y

It' the pipes require to be opened ou a. square by turning off the stop-cocks at two corners, the Water will only be shut olf from the one square.

What I claim as my invention,- and desire to secure by Letters Pute-nt, is-

1. In combination with the four converging pipes of two cross-mains, o. cylinder and stop-cock for receiving the water simultaneously from the four muu pipes, andA discharging it below the mains into the large eduotion-pipe G, und for shutting it off, substantially as seit forth. A

2. ln. combination with the cylinder B and stopook C and l'our branch pipes, lthe vertically elon- 'gated inductionV passages C2 and A', substantially :is and for the purpose set fort-lx.

3. The lstop-cock und cylinder, in com Duration, when and corresponding recesses to contine the stop-cook, substantially as set forth.

4. The combination of the four pipes, cylinder, and stop'-cook, und stem G3, lever E, having n. segmental rack and pinion F, for opemting the stop-cock in letting on or shutting oli' the Water, withthe educt-ion-pipe G, substantially us set forth.

off the waiter t1o'wiug through the mains below the 'level of the brunch, substantially as set forth.

l In testimony whereof, I have signedmy name to this speciticatiou before two subscribing witnesses. B.' A. HILL. Witnesses:

J. MooDY SMITH, C. T. NUTZE.

respectively constructed withv n" flange or flanges, c,

5. The errungemel'lt ot' the eductiou-pipe G, to carry

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