USRE3020E - Improvement in befitting stop-valves - Google Patents

Description

A @teilten tstes -stwt @Hilft l CHARLES S. HALL AND CHARLES F. HALL, OF BROOKLYN, NEW ,YORK,-

ASSIGNEES, BY MESNE ASSIGNMENTS OF SAMUEL WING..

Letters .Patent No.. 49,203, dated August 1,1865; reissue No. 3,020, dated'JuZy 7, 1868.

' IMPROVEMENT IN REFITTING STP-VALVES.

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TO ALL WHOM I'l MAY CNCERN:

Be it known that SAMUEL IVI-NG, of Monson, in the county of Hampden, and State of Massachusetts, did invent a new and Improved Portable Apparatus for Reftting Stop-Valves, Water-Cocks, Etc, and we, CHARLES F. HALLand CHARLES S. HALL, ol Brooklyn, in the county of Kings, and State of New York, assigneels, by mesne assignment of said 'Samuel Wing, do hereby declare that the following is afull, clear, and exact descrip'-` tion thereof, which will enable thosey skilled in the art to make/'and use the same, reference being hadto the accompanying drawings, forming part of this specification, in which-.

Figure 1 represents a longitudinal vertical 'section of the part used for refitting the valves, the line z fig. 2, indicating the plane of section. l

Figure is a plan or top view of the same, partly in section. I

Figure 3 is a side elevation of the part used for reii'ttinr.;` the va'lveseats, showing its operation.

Similar letters of reference indicate corresponding parts.

Stop-valves, commonly known under the term ofglobc-valves, are usually made with conical valves secured to a screw-spindle, and fitting into a conical seat. v

It' a valve of this class becomes leaky, the only way to reiit the sameheretofore has been by r'egrinding, or, if that operationl was insufiicient, or too slow, by unscrewing the stop-valve from its connecting-pipe, and

A sendingit to the shop, where it would be reiitted in the turning-lathe, or with the proper tools.

Either of these operationscauses much loss of time and of money. A simple and effective portable device, by which the operation of retitting said stop-valves can be carried out in a short timefand without disccnnecting the globe from the pipes, is a dcsideratumwhich will be acceptable to everybody who is troubled with leaky valves.

The `devices which form the subject-matter of this present invention, and which` are intended to lill the want above pointed out, consist of two parts, one for redtting the valves, and the other for retltting thescats. The former consists of a conical concave mill, made in the form to' agree with the standard form of the valves, and provided with'a yielding internal centre and suitable bearings for said concave mili, in combination with an adjustable centre, also arranged in suitablebearings, in such a manner that, by removing. the valve from the seat, and placing it between the adjustable and the yielding centre, it is at once in .the proper position to be acted upon by the concave Lnill, and a few revolutions of said concave mill, imparted to it by an ordinaryv ratchet-brace, or any other suitable means, produces the desired effect upon the valve, and brings it in the requisite shape to tit into'it-s seat.

The part for reiitting the seats consists of a conical in ill or reamer, with a cylindricalstem, to be-used in combination with a guide, which is made to take the place ofthe stuiiing-box and nut, through which the valvespindle passes, in such a 'manner that, by removing said stuiling-box valve and valve-spindle, and inserting therefor the conical mill and its guide, a few revolutions .given to said mill will bring the seat in proper shape, the whole operation being performed without removing the globe from' its' connecting-pipes, the whole constitilting a cheap, simple, and effective portable apparatus..

A represents a bed-plate, cast or'otherwise produced, oi' iron or other suitable material, and provided with two heads, a, which form the bearings for the stem of the concave mill B, and with another head, which forms the bearing for the adjustable centre t'.

The concave mill B is formed to correspond reversely with the standard form .ofthe valve,- and it is provided with an internal centre, c, made yielding by the action of-a spring, d, which is placed against its inner end, as clearly shown in iig. 1 of the drawing. l

A square shank, e, at the end ofthe stenroi' saideoncave mill, serves to apply a crank, or other means, for imparting to the mill the desired rotary motion.

The adjustable centre C Ais retained in the desired' position by the set-screw f.

The valve to be retted iS taken out of its seat, and `pla/ced between the centres'Cvc, and, by imparting to 4theconical mill a f ew revolutions', pressing at the same time towards the centre C, the desired e'ect on the valve 'is produced. Although the yielding lcentre c renders the apparatus more eiicient, a very good result may beobtained without it, and we cntemplate, in some cases, dispensing'with it. v

The seat is reiitted by the aid of a conical mill, D, and guide, E. When the valve,.wth its stuiing-box, has been removed from its seat, the mill D, with its guide E, is inserted in its place, and, by turning said mill around a few times, the seat is rcfitted to the desired shape.

The mills B and D are necessarilymade ofsteel, and suitably hardened, and serve for all sizes of valves, the conical inclination ofthe latter being always the same,'witho,t respect to size.

AThe guide E is made of iron or brass, and provided with a screw-thread to screw into the shell of the valve, in the place of the stuiing-box, 'which forms the guide of the valve-spindle, and may be made in the form shown in the drawings, or it may be provided'with meansl for adjustingthe stem ofthe milling-tool D radially, as, for instance, by theprovision of radial set-screws Ior wedges, or other similar means may be. made use of for the purpose. x n

The ent-ire apparatus'is very simple, and by its aid the stop-valve can be tted, with little loss oftime, and withoutremoving the globes of said valves from their connecting-pipes, and may be readily carried from place to place where the defective valves are tov be found.

Having-'thus described this invention, `we claim as new, and desire to secure by Letters'Patent.-

l1. The concave mill B, either provided with or not an internal yielding centre, c, and arranged n` suitable bearings a, in combination with the adjustable centre C, constructed and operating substantially as and for the purpose set forth. v Y v v `2. The guide E and conical mill D, applied in combination with each other, substantially as and for the purpose described. K

y 3. An improved portable apparatus7 constructed substantially as herein described, for rctting the valves and valve-seats of stop-valves and water-cocks. p l

The above speciiication of our reissue signed by us, this 2d day of April, 1868. j

' C. S. HALL, ,0. F. HALL. Witnesses:

WiL F. MGNAMARA, ALEX. F.' ROBERTS.

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