US1075380A - Pressure-governed regulator. - Google Patents

Description

D. S. RICHARDSGN.

PRESSURE GOVBRNED REGULATOR.

APPLIOATIoN FILED 001228, 1912.

. Patented 00t.14,1913.

2 BHEETS-SHEET l.

D. S. MGHARDSON. PRESSURE GGVBRNBD REGULATOR.

APPLICATION FILED 00'1.28, 1912.

Patented 0013. 14, 1913.

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2 SHEETS-SHEET 2.

miran A entras .rnran'r ormoni.

DWIGHT s. RICHARDSON, or New YORK, N. Y.

PRESSURE-GOVERNED' REGULATOR.

Specification of Letters P. tent. I'

Application filed October 28, `17912. Seri-a1 No. 72&`,211.

To all whom t may concern.'

Be it known that I,\DWIGH.T S. RICHARD- soN, a citizen ofv the United States, resigti'- ing'at New York, in the county and Sta e of New York, have `invented certain new and useful improvements in Pressure-Govle'rned Regulators; and l -do hereby declare the following 4to be a full, clear, and exact description of the same, reference being had to' the accompanying drawings, forming part of this specification, and to the figures and'letters of reference marked thereon.

This invention relates yto pressure gov- 4 erned regulators, Vespecially of that type d esigned for operating damper-s of steam or similar heating plants, the objects of' the invention being to provide a highly eficient` Aand exceedingly .simple regulator .which will withstand relatively highpressures, and not be subject to deterioration from a corrosive` or chemical action of the fluid with which it may be brought into Contact, or which serves as the pressure medium for operating the regulator.

The invention consists in certain novel details of construction and combinations and arrangements of parts allas will be hereinafter described and pointed out particularly in the\appended claims.

Referring to the Aaccompanying drawings: -Figure l is a sectional elevation of a damper regulator embodying the present.

improvement. Fig. 2 isa top'planview of the same with portions broken away and in section to illustrate certain features of construction. Fig. 3 is a section in a horizontal plane indicated by the line 3 3 of Fig. `l. Fig'. t is a perspective view of the up er portion of the preferred form of con ning casing and\damper lever support. 1 Fig.- 5 is' a perspective view ofthe preferred form of plunger'for operating the damper lever. Fig. 6`is a detailsectioi illustrating the preferred means of connecting the bellows or expansible member with the bottom of the supporting and confining casing. Like letters of reference in the several figures indicate the same parts.

Regulators of the general type to which 'the present invention relates and tle man- ,ner of mounting the same and connecting the operated parts' with the furnace' damper or other device to be operated bythe regulator', are well known. In' illustrating the present invention, it has, therefore, been thought unnecessary to show more than those parts in which the present improvements reside, and the parts immediatel associated therewith, for example, the pivotedleyer shown in Figs. l andA 2, is the part which is to be `connected by wel known v mechanical connections with the damper or ultimate device to be operated. and the hub or boss B internally t re'aded Patented Get. M., 1913.v

is adapted to ,be connected to a suitable pipe, (which may also support the regulator) leading from a source of pressure supply',as a steam boiler, in which the pressure isli'able to fluctuate and by which fluctuations the damper is to be operated.,

The hub or boss B is .preferably formed as an integral part of a base plate B', which in general contour is preferably circular, v

but has projecting I from its periphery, a

plurality, preferably three, equally spaced lugs or ears B2.. 'In the upper face of the plate B is an annular grooveV formed by an upwardly extending peripheral flange 6 and an internal flange spaced from the 4flange o and of somewhat less height The two flanges are preferably continuous 'around the entire plate -B and Vthe lugs B2 are outside of the flange y Resting on the lugs B2 and with their vlower edges in seats therein are three upwardly extending legs or supportshC for a top plate or cover` C. The top plate or cover C and the le s C are preferably formed in an integra casting, as shown in Fig. 4, the legs being of semi-cylindrical form, as shown in 'section' in Fig. 3, and the cover plate C being-provided with a downwardly extended peripheral flange o ar-v rangedopposite the flange b on the bottom plate. The two plates C and B" are fconnectedto form a rigid inclosing casing y petent to withstand a considerable internal pressure.

Thranges o and' lo and the inner edges ofthe'semi-circular"legs C".form; a cylindri,

cal chamber, as it were', with relatively large fioo ros

- spaces in its walls between the legs and which may be is adapted to Contact with t flanges, and in this chamber there is located a cylindrical expansible and collapsible vessel or bellows. This expansible and collapsible vessel is preferably formed of sheet metal with its peripheral 'walls deeply corrugated,-

as at E, whereby said walls are permitted a wide range of expansion or contraction, vertically, but are competent to resist Irelatively high lateral pressure without injurious lateral deformation, except such as may be incident to the vertical expansion and contraction. The circular corrugated wall E of the vessel is confined within the chamber formed by the; lianges @and b and the legs C', so that even undery excessive pressure adequate lateral support will be alforded and accident-al bursting revented under extreme and unusual conditions. The lower edge of the corrugated wall E is united to the base plate B within the annular groove formed by the flanges b and b', the method of connecting these parts being preferably to lill the groove with solder, and after the lower edge of the wall E has been suitably prepared by tinning, the solder inthe roove is heat ed or melted and the said e ge inserted in the solder-lilled groove. The plate Bf may be placed on a suitable heater for this pur-, pose, and usual soldering appliances such as a heavy soldering iron employed to complete the operation in accordance with known shop practice but it is preferred that the lower edge of the wall E be provided with an offset or groove such as indicated at b2,

plate C of the casing .for limiting upward expansion of the vessel. l

The central well F in the .top closure of the vessel is located immediatelyl beneath a central opening H in the casing top C, and

. is adapted forthe reception ofthe rounded lower end or portion z" of a plunger I, which extends upwardly above the cover Gland is pivotally connected at K with the lever A. The lever A is p1votally mounted between the bifurcated ends of an upwardly extending lug L on the top C, and the pivotal connection of thelever with the plunger I is also preferably formed by passing said lever through a slot k in the plunger as best seen in Fig. 2, and uniting the-parts by a transverse rivet or bolt. With this arrangelilled by the body offsolder -plated with a non-corroding metal,

e confining top .the heavy surface l1ne at B3.

-rnent the head of the plunger is locatedY within the chamber and lin assembling the parts theplunger is placed intoposition'before the cover, base and vessel are assembled and consequently is not liable to be displace or lost should unskilled labor remove the operating lever A for an purpose. An adw ditional advantage in t is particular construction is due to'the possibility of providing a cheap andconvenient means whereby the inward movement of the plunger may be limited so as to prevent the expansible vessel from beingv injuriously collapsed, more especially durmg periods when -there is no internal pressure. This result 'is accom plished by forming lateral lu s` M /on the plunger in such position that t ey will seat against the top C when lthe plunger has reached the desired downward limit of its movement, and for assembling thel parts the opening in the top C-is provided with the lateral enlargement k through` which the lugs M may pass, but the relation of the enlargements h, lugs M andi Slots lc is such that when the plunger is turned into posi- 90 tion to receivetlie lever- A', the lugs M will vbe out of alinement with the enlargements h, as shown clearly in Fig. 2, and Itherefore cannot pass down rthrough the opening. In practically all devices, of this," type difficulty in maintenance has been .ex erien'ced, due to the fact that for long perids of time the chamber is subjected to corrosive or chemical action of the' pressure fluid and as such action isA usually most manifest in the '100 iron which forms the bottom' of the chamber, special provision must be made to pre-v vent 'or overcome the efect. The present construction lends itself most favorably to a imple means for accomplishing this end, inasmuch as the inner face of the -bottom of the chamber is left free from any working parts, and said bottom may, therefore, be hich Wall 11o lating will extend from the corrugate down into theintake openin .In the preferred construction, the bottom Bf is electro copperl plated, as indicated by It iis then tinned Aaround the bottom `in the groove before referred to so as to more eectually hold the solder lwhen the groove is lled with solder as described. g

Having thus described my invention, what Iclaim as new and desire to .secure by Letters Patent of thel United States, is:

1. In a regulator such as described, the combination with a bottom plate having the pressure supply connection therein, a peripheral flange land lugs extending beyond said llange, a topplate having a peripheral flange and downwardly extending legs(- adapted' to seat on the lugs of the bottom plate, said top plate having also a centralopenmg and a lever support at one side 2. In al regulator ofthe type described,

v the combination withya bottom plate having the pressure supply connection therein, two upwardly projecting peripheral `forming a groove between them, the outer flange being of greater height than the inner flange and lugs ,projecting beyond said flanges, a' top plate having a peripheral flange and downwardly extending legs seated on the? lugs on'the bottom plate, said Vtop plate having a central aperture and a lever support at one side ofl said aperture, and means for rigidly connecting the top and lbottom plates to form` an inclosing casing, of a vessel mounted within said casing and havingacorrugated peripheral wall and inwardly dished top, the lower edge of said vessel being permanently united to the bottom plate by a body of' soft metal confined between the peripheral flanges, a plunger the topiv having an enlarged head resting in the ydished top' Vof 4the vessel and projecting through the opening in the top plate and a lever pivotally connected with the Iplunger and lever support, respectively. 3. In a regulator of the type described, the' combination with the bottom plate having` tlfe pressure supplyI -connection therein, plate spacedfrom the bottom plate, rigidly connected thereto, and havingl al central opening with a transverse enlarge- Vment, andan upwardly extending. lever supu port, of an expansible vessel havingsNits flanges f lower edge permanently connected with the bottom plate and having its upward expansion limitedby the top plate, a plunger hav-v ing an enlarged, head restingon said vessel, f

thestem of said plunger extending upwardly through the opening in the top .plate and having a transversely projecting lug thereon, whereby the parts may be assembledl by passingsaid stem and lug through the opening and its enlargement, a lever pivotally mounted in the lever support, and a pivotal connection between said lever and plun- A'ger arranged to position the lug at one side of the transverse,I enlargement of the stem,v

opening, whereby the downward movement of the plunger will be limited by the covoperation of the lug with the top plate.

and upwardly extending peripheral flanges forming a groovebetween them, the outer flange being of greater height than the inner flange, there being peripheral lugs 4. In a regulator of the type described,

equally spaced on the'- outer side of the' ,outer flange, a top plate having a down- !Wardly extending peripheral flange and legs integral with the top plate seating on the lugs on the bottom plate, said legs and flanges forming af substantially cylindrical confining chamber with wide spaces between the legs andfbetween the flanges, andbolts 'extending through the legs for rigidly connecting the. top and bottom plates, of a cylindrical vessel located within the flanges andbetween the plates, rkthe peripheralwall of said Vessel being transversely corrugated and with its lower edge permanently confined in the groovecbetween the flanges on -the bottom plate, a plunger resting-,onsaid vessel and extending loosely through the top plate,'and an operating lever'pivotally connected with said plunger.

' i DWIGHT S. RICHARDSON. Witnesses:

WILLARD R. EATON, ARTHUR NIoHoLs.

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