US106201A - Op boston - Google Patents

Description

-LPETERS. FHOWUTHUGRAPHER, WASHINGTON. D. C.

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IMPROVEMENT nvY STEAM-Tanne.

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

To all whomtt may concer-n:

l l `Be it knownthatwe, LAMsoN PERKINS, J 0;.

jenen H. Monnromahd `CHARLES E. SAWYER, all of Boston, in thecouty of Suffolk and State of Masi sachusetts, havenventedan Improvementih Steam- Traps, of which the, following is a full, clear, and exact description, reference being had to` the accomt panying thawing .making part of this specification, in which- Y t ,y `Figure l is a plan of' a portion `of a `waste or escape-pipe withI our` improved steam-trap applied "Figure 2` same. s

Figure 3 is `a perspective view of the end ot' the l plug ot' thevalvc or stop-cock, illustrating the appli cation of our improvement thereto.

is "a longitudinal section T'through the f Figure 4 is att-perspective view of the` elastic packing, which is applied to thefend of the'plug ofthe valve.

` `Steam-traps `as heretofore constructed have been `objectionahle for the reason that the plugs or seats of the valves `have been located on a linebelow the month of the escape-pipe, and hence have been in position to be kept constantlyinider .the induence of hot watchin which they are, necessarilydminerscd, 4.and are, thus subject to more or less injury therefrom."` v f i Plug and seats of valves made` of n'ietal are object tionable, as they are sonnent. or destroyed by being tbrced'against each other hycontraction and expanp sion, and also by the action ofthe steam and water, and when out `.it'order the iiow of water cannot be away `ot" the parts is avoided, and the desired end attained. A Y y '.lo enableiothers skilled in the art to understand and use our invention we will proceed to wdescribe the in auner in which we have carried it out.

4In the said drawing-J connected witha boiler for the` passage ot' steam for heatingand'drying purposes, the said pipes being se` .A `the lower one of 4a seriesof pipes (not shown)A cured by brackets', or otherwise, to the wall of'an Y apartment.

Bis a valve or stop-cock, the plug a of which is provided with a screw-thread, by which it is turned.

in andfout against the outer end b of the pipe A,`

which forms the outlet for the water of condensation contained within the steam-pipes.l

The outer portion of the pipe A passes through a stuffing-box, O, and is free to slide within the shell of the valve as it is lengthenedor. shortened by ex-` pansion or contraction. 1

-The end of the plug-a of the lstopfcock is provided with a recess, in which snugly tits an elastic or yieldingpacking, c, fig. 4, which forms the seat or bearing for the end b ofthe pipe A, and this packingis formed of a composition that will withstand the action of the steam to which it is exposed.

Soon after steam is admitted to the drying-pipes it begins to condense, the'Wat-er lilling the outer portion of the lowerpipe A, and it then becomes necessary to draw olf the water without permitting any waste l of steam.

To accomplish this vthe plug a is unscrewed by turn ing the hand-wheel I) so as to withdraw the elastic Y bwill come into contact with the elastic packing c on the end of theplug a, when. the escape ot the steam will be immediately stopped. The water oilcondensat-ion will then commence to fill thev end of the pipe A, contract-ing and shortening it so that its end t will be withdrawn ii'om the plug c, and the water will then be free to 'escape through the pipe E, which is placed on a line not above the surface of the plug c. V

When' the elastic packing c becomes worn out from constant use4 it may be readily replaced at a tritling expense.- y i By the appllcation'to the plug ofthe valve of a stea1ntrap of an elastic or yielding packing, c, thatwill withstand the action of steam, as above described, the plug the flow of Water can be automatically' regulated with a great degree of nieety; so that when the apparatus is onceadjusted it will not require the constant; a'ttention heretofore needed.

. We are aware that elastic balls have been used in steam-traps, and the elastic surface of these balls brought into direct Contact with the mouth of: the steam-pipes, but the practical effect of the globular form ot' this packing is objectionable, as it requires great exactness in the manufacture of the'se balls7 for should they not be perfect globes, with a perfect evenness in the elasticity of' their sides, the mouth of the pipe would not be closed.

My invention of a flat-surfaced socket will overcome this difficulty, and secure the object sought to he obtained with eas'eand certainty.

Witnesses:

N. W. STEARNS, W. J'. CAMBRIDGE.

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