USRE13501E - Water-tube boiler - Google Patents

Description

H. E. BASCOM. WATER TUHH BOILBR.

APPLIoATLoN funn s119128, 1912.

13,501. 2 SHEETS-SHEET 1,

Reissued Deo. 31, 1912.

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1 1' i 117171.11111 l Y H. F. BASCOM. WATER TUBE BOILER. APPLICATION FILED SEPT. 2s, 1912.

Reissued 1m31, 1912. l 1 3,501

2 SHEETS-SHEET 2.

f UNirED sT-Aras. onirica.V

' HARRY rfmsconr, ois' ALLENToWN, PENNsY'LvaNIA.

warns-'roam BOILEB..

- Specification of Reissued Letters Patent. Reissued Dec. 31, 1912.

Original No. 1,035,677dated August 13, 1912, Serial No. $031,155.` Application for reissue led September 2B, 1912.. Serial No. 722,969. p

To all whom it may concern:

Beit known that I,.HA,RRY F. BAsooM, a citizen of the UnitedStates, residing at y Allentown, in the :county of Lehigh and State of Pennsylvania, have invented a new and useful Water-Tube Boiler, of which the following is a specification.

It is the object of this invention to -provide a means whereby access may be had to a boiler structure, for the purpose of cleaning the tubes and the drums thereof, without interfering with theV circulationof products of combustion about the tubes and the drums.

view which will appear as .the description roceeds, the invention resides in the comv ination'and arrangement of parts and in the details of constructiony hereinafter described and claimed, it being understood that chan es in the precise embodiment of invention lerein disclosed can be made within the scope of what is claimed without departingfrom the spirit of the invention.

In the drawings,-'Figu el is a front elevation of a fragment of an end wall' of a boiler, equipped with the device of my in-A vention; Fig. 2 is a rear elevation of a fragment of an end wall of a boiler structure,

equippedwith the device of my invention, the mud drum being shown in section, and the partition which is above the mud drum being sectioned also, the artition being broken away at its lower e ge, in order to disclose a removable plate which constitutes a portion of the invention. Fig. 3 shows the invention in perspective; and Fig. 4 is a vertical section transversely of the end wall of the boiler, the view showing the manner in which the invention is mounted, and how the invention co )erates with the partition and the drum of tlie boiler.

The device forming the subject lnatter of this application, is adapted to be employed in connection with boilers of widely different types, but, in order to present a concrete embodiment, I have )plied the device to one particular type of boiler, namely, the Sterling boiler, so called, without, of course, -limiting the use of the invention to this particular form of boiler.

` The particular boiler under consideration, consists of a plurality of upper drums 4(notshown) united by means of tubes 1 and 2,

With the foregoing and other objects in boilers with a lower drum 3, known as the muddrum., The end wall of the inclosing structure for the boiler, is denoted by the numeral 4, and in lateral abutment withY the fend wall 4, is an upright partition 5, and

this partition, as clearly shown in Fig. 4 extends downwardly into abutment with the drum 3.

Referring to Fig. 2, and notin the arrows therein, it will be understo that the products of combustion, in this particular type of boiler, move transversely of the boiler structure, about, the tubes' 2, into contact v with the partition 5, the products of-conlbustion passing thence, over the top of the partition 5, and downwardly along the. -oppcsite side of the partition', about the tubes 1.

By way of explanation I will state that in generally, and in the type of vboiler shown, 1n partlcular, the etliciency of the boiler is decreased, by reason of 'the` fact that dust and other foreign matter accumulates about the tubes 1 and 2 in the vicinity of the drums, particularly in the vicinity of the lower mud-drum 3.- This invention aims to -provide means whereby access may be had readily to a boiler drum, and to the tubes of the boiler, for the purpose of cleaningthe same, the device, however, normally inter` fering in no wise with the circulation of products of combustion about the drums and the tubes. In carrying out t'le invention,

then, an opening is fashioned in the end wall 4 of the boiler structure, about the drum 3. Into this vopening is inserted a box-like casing 6, open at its forward and lrear ends. The particular form given to vthis casing, may be varied, but the specific casing shown most clearly in Fig. 3, will be found convenient to use. andinexpeusive to lnanufacf tui-e.

In its forward edge, the casing 6 is supplied with a plurality of outstandingl lugs 7, adapted to extend through a closure 8. ling nuts 9, or other securing elements adapted to a like end, are mounted upon the lugs 7, to hold the closure in place. At any convenient point in the closure S, there is an opening 10 (see Fig.4) this opening being normally closed by means of a door l1 i which, if desired, may be pivoied in its uppermost portion to the closure S.' as shown at 12. One of the lugs which outstands from the forward edge of the casing G, in the present-instance, the lug denoted specifically by closed position.-

Extended longitudinally of the 4casing -upon its top, is a reinforcing flange 16, the flange serving to'prevent a possible crushingin of' the casin by the superposed Weight of the end Wai-i Outstanding from the top and bottom of the casing 6,. and disposed transversely of the casing, are guides 17, into Which a. plate 18 may be inserted. .Y

Pfresupposing that the device is mounted in the end Wall 4, as shown in Figs. 1, '2 and 4, Whenfa brief inspection of thedruin 3 and the-tubes l and 2 is desired, the door 11 may tubes and tiieidrum is found to be necessary, the Wing nuts 9 may be removed, permitting the closure 8 to be set aside, whereupon the plate 18-may be withdrawn from the guides 17, thus giving easy access to theftubes and the drum. p

The plate 18, when mounted in the guides 1.7, abuts against the forward end of the. 'partition 5. The reason why the plate 18 is provided, will be clearly understood from anA inspection of Figs. 2 and. Noting, at present, Fig. 3, it Will be seen that, in the absence of the plate 18, the products of combustion, following the arrows in Fig. 3,

would' pass into thev casing 6,A laterally around `theforward edge of the partition 5, thus putting an end to the circulation upon the opposite sides of the partition v5, as shown bythe arrows in Fig, Q. Vhen the plate is-in tern'iinal abutment with the par tition 5, as shown in Fig. 4, it will be seen 'that the closure 8 serves a means for holding the plate 18 in place. Obviously,'tlie removal of the plate 18pcr1nits the operator' y toexaIn-ine and to clean the tubes which are located yupon' opposite sides of the partition 5. 4

Although, in Fig. 4,-tlie casing 6 is shown as not extending entirely through the end Wall 4, and although in Fig. 3, the plate 18 protrudes inwardly beyond the casing 6, it

. will -be readily understood that these details maybe altered, so that the casing C, the plate "18, the end Wall 4, and the partition 5, will all coperate to give the desired access to the tubes and the drinn, With-,iut interfering with the circulation ofthe products of combustion through the boilerstructure.

It is to be noted that the improvementherein disclosed, is adapted not only, for the purposes of cleaning the drums and the tubes, but, as Well, for determining, b v inspection, Whether any of the tubes are leal;- ing or broken.

" Having-thus described the invention, what is claimed is i 1. In 'a device of the class described, an end Wall having an opening; a partition ex- `4 of the boiler structure.`

tended across the` opening and 'abutting i againstthe Wall; an imperforate plate removably held inthe opening longitudinally of the opening and intermediate the sides of the opening, the plate abutting against the partition to prevent a cross draft through. the opening; and a closure for the outer end of the opening, with which closure the plate engages.

2. In a device of the class described, an end Wall having an opening; a drum; a partition extended across the opening and into abutment with the Walland with the drum; an imperforate plate removably held in the opening, longitudinally of the opening,'and intermediate :the sides of the opening, the plate abutting against the partition to prevent a cross draft through the Open- In a ...device of the class described, a

drum; an end-wall positioned adjacent the drum and having an opening; a partition in abutment with the end wall and the drum; a

`casing adapted to'be inserted .into the opening in the end Wall, the opening and the casing being extended beyond both sides of the partition; a plate insertible into the casing, to abut against the partition and to preieiit a. cross draftthrough the opening; and a removable closure for the casing, se'rving at once to give 'access to the casing, and as a means for holdii'ig the plate in abutment with the partition. 'if' .4. In a device ofthe class described, an end Wall having an opening; al partition extended across the-opening and abutting against the Wall; an iinperforateA plate held in the opening longitudinally of the open ving and intermediate tliesides of the opening, the plate abutting against the partition to prevent a cross draft through the opening; and a closure for the outer end of the opening, With' which closure the plate engages. Y

5. In a device of the class described, an

end Wall having an opening; a drum; a partition extending across the opening and into abutment With'the Wall and with the drum; an inipcrforate plate held in the opening, longitudinally ofthe opening, and

intermediate' the sides ofthe opening, the -plate abutting against the i'iaitition-to prevent. a cross draft through the opening; and

va closure for the outer end ot the opening, with which closure the plate engages.

(. In a device of the class described, a

` the casing being extended beyond both sides i of the partition; a plate Within the casing,

vdruin; an end Wall positioned adjacent the `1 drinn and having an opening; a partition in abutment With the end Wall and the drum;

to abut against the partition and to prevent a cross draft throu h Vthe opening; and a. removable closure Jr the casing, serving at once to give access to the casing, and as r a means for holding the plate in abutment with the artition.

7. A boiler having a series of generating n tubes, a partition to dirt the products of combustion about said tubes, a wall-,having a cleaning opening, said partition extending 'across said o enlng, and, a late in .said

opening" abuttingagainst sai wall to prevent a cross draft through theopening around the lower endof t e partition.

8. A boiler havinga series of generating tubes, a partition to direct the products ofv combustion about said tubes, a wall having a cleaning opening extending on both sides of said partltion, and a plate in said opening so placed relative to 1 the partition as to prevent a cross draft through the opening.' .y

around the lower end of the partition.

9. A boiler having a series of generating tubes, a drum .into which the lower ends 0f the tubes are expanded, a partition extending from said drum for'directing the products of combustion, a wall havin a cleaning opening extending on both si es of said partition, and a plate vin said openilg so placed relative to theparition aswto pre-Y v'ent a cross" draft through the opening around the lower end of the partition.

In testimony /whereof I have hereunto signed my name in the presence of two subscribing witnesses.

HARRY' F. BAsCoM.

Witnesses:

M. E. MCNINCH, C. G. HEYBRUN.

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