US551817A - Stand-pipe for boilers - Google Patents

Description

2 Sheets-Sheet 2. H. R. FRISBIE.

Patented Dee. 24., 1895.

(No Model.)

` `STAND PIPE P011 BolILERs. yNo. 551,817.

Al( DREW B GRMIAM. PNOTOjl-ITND.WASHINGTONA D C.

UNITED STATES y PATENT OFFICE.

I'IENRY R. FRISBIE, OF NEIVARK, ASSIGNOR TO THE EASTIVOOD TIRE MANUFACTURING COMPANY, OF BELLEVILLE, NEIV JERSEY.

STAND-PIPE FOR BOILERS.

SPECIFICATION forming part of Letters Patent No. 551,817, dated December 24, 1895.

Application iled August 15, 1895. Serial No. 559,430. (No model.)

To a/ZZ whom t may con/cern:

Be it known that I, HENRY R. FRIsBIE, a citizen of the United States, and a resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Stand-Pipes for Boilers, of which the following is a specification.

My invention relates to an improvement in stand-pipes and gage-cocks therefor for boilers; and it consists in certain details of construction to be more fully set forth and described in the following specification, and such features believed to be new and novel particularly pointed out in the claims.

To enable others to understand my invention, reference is had to the accompanying drawings, in which- Figure 1 represents a front elevation of the stand-pipe, central sectional view of a gagecock connected therewith, broken view of the outer shell of the stand-pipe at the point of such connection, and broken view of one of the water gage glass protecting side rods. Fig. 2 is an upper plan view of the standpipe, looking in the direction of arrow o of Fig. 1. Fig. 3 is a vertical central section of the stand-pipe, valves, and water-glass connections, and broken view of the boiler-connecting pipes, looking in the direction of arrow b of Fig. 1. Fig. 4 is a detail side' elevation of the upper valve and water-glass connection, broken Vview of the gage-glass, and broken view of the valve-operating lever. Fig. 5 is a detail view of one of the valve-,body plugs having a threaded end adapted to screw into the stand-pipe and a projecting hollow column to support the waterlgage-glass connection. Y

Its construction and operation are as follows:

1 is the stand-pipe, having holes 23 a for` valve-plug bushings, whose threaded ends 9"L are screwed into threaded holes near the top and bottom of the stand-pipe 1. The outer projecting end has the reduced central portion 10, whose cylindrical surface is pierced with the elongated holes or openin gs l1 communicating with the interior 12. The narrow cylindrical seats 10n support the rotatable sleeves 13 13, so that when such sleeves are mounted thereon the opening or chamber 14 is formed, which opening or chamber surrounds the reduced central portion 10 for the purpose to be hereinafter more fully described.

Projecting from the body portion of the sleeves are seen the hollow exteriorly-threaded nipples 15, whose interior 16 communicates with the interior of the sleeves. These nipples are provided with the usual retainingnuts 17 for holding the water-gage glass 18 in position. The ends of this glass are inserted into the holes 16 of the said nipples, and, as usual in such cases, holes are formed in the upper surface of the retaining-nuts 17 to freely admit such glass and not allow the metal to come in contact therewith.

To support the glass and prevent its dropping too far within the lower sleeve I have provided the metal seat 19, whose upper overhanging lips 2O rest on the top of the nipple 15, and whose inwardly-projecting seat 21 will support the lower end of the glass tube.

Heretofore it has been the custom in constrnctin g stand-pipes to make the valves with rigid glass-gage connections, so that it was exceedingly `difficult and well-nigh impossible to screw the valves into the stand-pipe so that the holes for the glass gage would be in perfect alighment with each other, and when the retaining-nuts were sufficiently tightened to prevent leakage the glass would be so strained and cramped as to canse it to break.

In my improved construction the valveplugs 9 can each be firmly seated in the standpipe.

Then the sleeves 13 can be rotated on their supports until the gage-holes 1G are brought in perfect alignment with each other, and when in that position are firmly held against the shoulders 9b of the valve-plug by means of the stuffing-box bushing 22, whose shoulder 22 abuts the outer face of the ro- IOO tatable sleeve 13. The outer or stuing-box end 22b of this bushing 22 is provided with the follower 23 and nut 2l.

25 25 are spindles passing through each of the stuffing-box bushings, whose threaded portion 26 Aengages the interiorly-threaded portion thereof.

27 are exteriorly-thleaded valve-seat bushings and are screwed into the base of the valve-plugs 9, which valve-seat bushings are provided with the lugs 27 for convenience in screwing them to their seat. These valve-seat bushings carry the valves 2S, whose win gs 28L loosely tit J[herein and engage with the stems 2li of the spindles 25 25. rlhe inner portions of said bushings furnish seats for the said valves. 29 are caps or plugs screwed into the inwardly-projecting ends thereof, and these caps have each a central hole to operatively supportJ the stems 28b of the valves 2S.

29 are transverse holes in the projecting ends of the bushings 27, which holes operate to prevent dirt and other foreign matter gaining free access to the valve-seats.

30 and 31 (see also Fig. l) are levers rigidly attached to the projecting ends of the upper and lower valve- spindles 25 and 25.

"2 is a flat rod pivotally connecting said levers.

is an operating-lever also rigidly attached t0 the lower valve-spindle having a hole 33 therethrough, in which hole a rod, cord or chain may be placed for operating the device. On the upper valvespindle is rigidly mounted the indicating-bami 3l.

35 and 36 represent the guide-rods on each side of the gage-glass.

Mounted on the top ofthe stand-pipe column 1 (see also Fig. 2) is the name-plate 37, whose right and left branches have stamped or castthereon the words O pen and Shut, which, in conjunction with the hand 3l, will indicate the position of the upper and lower valves leading from the interior of the stand-pipe column to the upper and lower open ends of the gage-glass. W'hen, therefore, the hand is in the position shown in Fig. 1, the valves leading to the gage-glass are closed, thus shutting oif all communication with the boiler, so that the glass may be removed, cleaned or otherwise dealt with or such other work performed outside the stand-pipe as may be found necessary.

To allow suflicient vertical and horizontal accommodation to the name-plate 37 when the rotary sleeves 13 are being adjusted to bring the gage-glass holes 1G in vertical alignment with each other, and also when the valve-plugs 0 are screwed against the side of the stand-pipe column 1, I prefer to construct the name-plate in two parts, as seen at Fig. 2. The adjusting-plate 3S has the oblong hole 3S therein, which hole embraces the stud 39 projecting from the upper rotatable sleeve, and when the upper and lower sleeves are properly adjusted, as before mentioned, the

elampingqiut i() secures the bracket to such sleeve. For the horizontal adjustment of the name-platc 37 the elongated holes L11 are formed in the end of the adjusting-plate 3S with screws 42 for securing the said plate iirmly to the terminal 37 ot' the branches 37" of the naine-plate.

43 is a nipple on the under side of the rotatable sleeve 13L whose threaded end is surmounted by the flanged nut Llll holding the swivel connection 45 to carry off the drip.

The steam or water from the interior of the stand-pipe column 1 will, when the valves are opened, asbefore mentioned,pass through the holes 29, thence through the central passages of the valve-scat bushings 27 and into the chamber 12 of the valve-plugs 9, thence through the elongated apertures 11 to the circumferential chambers 1G, and into cach end of the gage-glass.

I prefer to make the threads on the valvespindles double, so that the valves may be opened with but little movement of said spindles.

A stand-pipe column constructed as above described is not only cheaper to make, but much more efficient and reliable than the devices heretofore used for the purpose. The valves are closed by the pressure within the stand-pipe column,so that the upper and lower spindles 25 and 25, whose reduced inner free ends operate such valves to open them, can be removed without shutting oli' the boilerpressure. Besides, the upper and lower valve and gageglass connections being made in several parts can be readily replaced by other parts when needed. 1n a word, the whole construction is readily put together or taken apart or adjusted, as the case may be.

Another feature in connection with myimproved stand-pipe column is the improved gage-cock, one only being shown at Fig. l, it being understood, however, that two others are attached to the upper holes 2 and 3, as shown at Fig.

4G is a nipple whose reduced threaded end 4G is a construction similar to the valve-bushings 27 before mentioned-viz., the valve 47 rests on a valve-seat formed at the bottom of the chamber 4.8, the mouth of which chamber is closed by the screw-cap .49, the valvestem 17a being operatively placed in a central hole in such cap, the wings 47h of the said valve resting in the hole 46c of' the nipple 4G.

50 is a discharge-nozzle whose reduced threaded end 50:L is screwed into the open mouth 46 of said nipple. The valve-spindle 52 has on its inner end the valve 52L and stem 52h, which stem rests against the end of the wing 47b of the valve 47. A valve-seat is provided in the end 50 of the nozzle for the valve 52, while the wings 52of said valve rest ina centrally-arranged hole of the inner threaded end of such nozzle. The outer cylindrical portion of the spindle 52 passes through a hole in the end wall 50b of said nozzle and ICO IOS

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through the stuffing-box end 50, which end is provided with the follower or gland 53.

The handle 54 is bifuroated or forked on its inner end, so as to form two ears, one, 54, only being shown. These ears straddle the stuffing-box end of the discharge-nozzle and are operatively mounted on the pin 55.

54b is a bridge spanning the open space between the ears of the handle 54 and is integral therewith. This bridge is located about on a line with the pivotal point or pin 55, and is adapted, when the valves are closed, to rest against the under side of the stuffing-box end 50 of the nozzle 50, so as to keep the handle 54 in a horizontal position.

56 is a forked projection located between the ears of the said handle and integral therewith, which fork embraces the valve-spindle 52. 52d are collars provided on the outer end of this spindle to be engaged by the forked projection 56 in operating the valves. Its operation is as follows: In the drawings the valves are represented as closed. When, therefore, it is desired to test the contents of the stand-pipe, the handle is raised in the direction indicated by arrow c, which operation will cause the inner face of the fork 5G to act against the outer face of the inner eollar on the valve-spindle 52 and open both valves, the steam or water passing out of the opening d' of the nozzle 50. Releasing the handle will cause it to drop by its own weight,

' while the pressure within the stand-pipe will I claim as new, and desire to secure by Letters Patent, is-

1. In a stand pipe for boilers, of the character described, comprising in combination, column 1; valve plug bushings 9 having threaded ends 9 adapted to be screwed into holes in the face of such column, as shown; the hollow projecting ends of such bushings having outlets 11; reduced portions 10 5 journals 10 5 rotatable sleeves 18, 13a mounted thereon; threaded nipples l5 projecting from said sleeves to receive the ends of the gage glass; retaining nuts therefor; seat 19, as shown, to support the lower end of said glass; valve seat bushings 27 screwed into the base of the said valve-plug bushings; valves therefor 5 the projecting inner ends of said valveseat bushings having inlet holes 29a; caps 29 for closing the open mouth of said bushings and, also, to support the valve stems; stuffingbox bushings screwed into the said valve-plug bushings; valve spindles 25, 25a, as shown, having reduced inner ends to engage the valves, for the purpose described, operating levers connecting the two valve spindles, as set forth.

2. The combination with the stand-pipe column; valve-plug bushings; rotatable sleeves mounted thereon; water glass connected therewith; valve-spindles, as shown; operating levers and connections therefor; indicating hand on one of said spindles; of a name plate mounted upon a stud of the upper sleeve, and means substantially as shown for adjusting such plate relative to the position of said sleeves and means for securing them in a fixed position, for the purpose set forth.

Signed at Newark, in the county of Essex and State of New Jersey, this 17th day of July, A. D. 1895.

HENRY R. FRISBIE.

Witnesses:

JOHN W. JORALEMON, W. S. HAMLIN.

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