US1021597A - Device for steam-boilers. - Google Patents

Description

L. B H'ANKISON & W. E. STUMM; DEVICE FOR STEAM BOILERS. APPLICATION FILED JULY 8. 1911.

1,021,597, Patented Mar. 535, 1912.

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L. E. HANKISON & W. E. STUMM. DEVICE .FOR STEAM BOILERS. APPLICATION FILED JULY 8, 1911. 1,021,591 Patented Mar. 26,1912.

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UNITED "STATES PATENT] OFFICE. LEWIS, E, HANKISON 42m mm 1i. s'rtmm, or commsmne, rsxnsrnvmm.

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To all whom it may Be it known. that we',; IlEWIs E. Harman SON and Wmnmn E. STUMM, citizens of the United States, residing at Connellsville, in the county of Fayette and State of Pennsylvania, have invented new' and useful Improvements in Devices for Steam-Boilers, of.

Specification of Letters Patent. Application filed July 8, 1911. Serialll'o. 837,56

vision is made for the protection ofthe' water legsof'water tube boilers,and for cleaning deposits of combustion from the lower bank of tubes, e

As is well-known to those acquainted with the art, the lower row of tubing in a water tube boiler when in use, becomes coated with the products of combustion so that the efficiency of theboiler is greatly reduced because the heat of the furnace passes up through the tubes without coming int conheat the waterthe tubes causes a deficiency in the capacity of the Furthe deposit upon the lower tubes has a tendon to retain or confinee the heat at the wal s of the furnace, thus causing a portion of the heat to radiate thl'bllgh said walls, burning out or destroying the latter. p

' n the resentinstanoe, it is our purpose to provid means which may be installed between the water leg of the boiler and back wall of the 'boiler setting whereby access may be had to the bank 0 tubing, through doors or openings, sothat such tubing may be scraped or cleaned through the medium of a' tool designed for this purpose, the cleaning being done while the boiler is in service,

thus attaining economy in time, labor and 'boiler 11 e.

Itis 3150 our intention to provide a device to protect the water leg from corrosion, inasmuch, as by means of our invention the water legis supported some, distance above the boiler setting, thus keeping moisture tact therewith and byffailing to properly.

' furnace itself are Patented Mar. 26, 1912.

from the bottom of the legs,'and thereby avoiding corrosion of the latter.

Furthermore, by means of our invention, the boiler setting, furnace castings and the reserved from injury, inasmuch, as by allbwing of the ready and frequent cleaning of the tubes, the heat will follow its natural course through the bank oftubing to its outlet, instead of being eon fined in the lower portion of the furnace by tubes clogged or packed with the deposit of soot and other products of combustion. While we have in the present instance shown and described by way of illustration,

one applicationof our invention to an ordinary type of water tube boiler, we wish it to be understood that we do not limit the invention to-this useful application, as it our invention. Fig. 3 is a perspective view,

of the assembled device. Fig. 4 is .a-vertical cross sectional view, taken on the line-H of Fig. 1, lookingfin the direction of the arrows, the cleaning rod bein omitted.

Briefly stated, the-preferred form of our invention is made in the form of a box-like member, comprising a series of sections adapted to be assembled as is shown in Fig. 3 of the drawings, and to be installed between the wall 0 the boiler setting and the adjacent water leg, as is shown in Fig. 1;" it being understood that the device, which is made of metal may be attached as a new art of a boilerwlten manufactured or may e manufactured and installed after the I the blow-off pipes.

boiler is in place.

to accommodate the rivets and blow-off pipes on the bottom of the water legs, this construction enabling the device to be installed beneath the water legs without removing Furthermore, the structure is preferably formed with a series of doors which may be'opened to permit the insertion of'a scraper rod or other tool for removing a,deposit from the boiler; as is shown in Fig. 1.

Referring now to the accompanying drawings in detail, and particularly to Fig.1,

the numeral 1 designates the bridge wall of the furnace and 2 the grate thereof. Above the grate and bridge wall is the usual arch 3 while the bank 0 water tubes isshown at 4, the baliies thereof being indicated at 5-5, while G'indicates a portionof the drum of the boiler. In the present instance, we have shown the invention. as applied beneath the rear water leg of'the boiler, which is shown at 7,'the back wall setting being indicated at 8, the top of saidwall being stepped as shown at 9.

ling rearw; :d from vertical side walls 14, curved or recessed as at 15 for the reception *of' the rivets and Our invention comprises in its preferred form a number of block-likecastings -10-10 adapted to be placed end-to-end, as is shown in'Figs. 2 and 3, although we wish it to be understood that the device may-be cast or otherwise made'in one piece, if desired. As

all of the sections are similar in construction, a description of one will'suflice foriall;

Each section comprlses a front plate 11 having elongated openings therein desi ed to be covered'by small end doors 13. xtend the front plate are the blow-off devices on the bottom of the water legs. lhe tumeral 16 indicates the base of the section of the casting-which is stepped as at 17 to fit into the corresponding steps 9 at the top of the back wall of the boiler setting, as is shown in Fig. 1. It willbe understood that the vertical walls or partitions 14 of the block-like castings are suitably spaced apart to permit the free entry of the clean-- that the cleaning tool T may have free entry to the lower row of boiler tubes.

This member is prefer-- ably formed of sect-ions or castings'ih order laced in contact end-to-end to 'From the above description, taken. in connection with the accompanying drawings,

the construction and purpose of our invention will be readily apparent to those atquainted with theconstruction of steam boilers and steam boiler furnaces By forming the bottom of the device of step-up construc-' tion', it acts as a stay for strengthening the v supporting partition:

In the case of new boilers our invention may be formed as a art of the same, while in boilers that have een already installed, it may be employed by removing a portion ofthe wall and inserting the device.

Furthermore, we wish it to be understood that we do not limit ourselves to applying the inventionbetween the water 'legan the setting as such 'a devicemay be applied under any" conditions where it is desired to protect from corrosion a part of a boiler that V receives its support from a setting. 3

As before stated, in addition to affording a means to attaining access to a tube to clean device for protecting the water'le .or other parts of a boiler from contact wit the leakage water and the like, and we regard this the same, our invention forms a very efiicientas an important-feature of our invention.

Furthermore, we wish it to be understood that we do not limit ourselves to all the precise details of construction herein set forth,

as modification and'variation may be made without departing from the spirit of'the invention or exceedmg the scope of the claims.

1. The combination with a furnace and a tubular boiler, of means interposed between the boiler and the boiler setting for permitting the cleaning of said tubes, said means comprising a box-like casting having an opening, in'the front wall thereof,'and a apart or the insertion of a plurality of walls or partitions spaced to form a passage cleaning tube.

2. The combination with a furnace, a boiler setting, and a boiler, of means interposed between said boiler and boiler setting comprising a body portion having a series of openings therethrough, means for closing said openings, and blocks or bricks of'pro tecting material at the inner end of the body portion.

3. The combination witha furnace, of a water tube boiler, a setting therefor, and

means interposed between the lg 'of' the boiler and the setting, said means comprising a box-like member having a seriesof walls or partitions f0 'ng openings therethrough.

A. The combination with a steam boiler I furnace, of a water tube boiler, and aboilersetting, of a body portion interposed be-' tween the leg of the boiler and-the boilerboiler setting.

10 vertically extendingside walls forming pas;

sages, the top of said side walls being-curved or recessed.

In testimony whereofwe aflix our signatures in presence of two witnesses.

LEWVIS E. HANKISON. \VILL AM E. STUMM.

Witnesses FRANK H. KRUM, J. B. KURTZ.

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