US624627A

US624627A - Boiler-cleaner

Info

Publication number: US624627A
Authority: US
Publication date: 1899-05-09
Anticipated expiration: 1916-05-09

Description

No. 624,627. Patented May 9, l89.l V. CLARK.

BOILER CLEANER.

(Application led May 14, 1898.) (No Model.)

mn @u UNiTnn STATES PATENTV OFFICE.

VALENTINE CLARK, OE DRYAD, VASHINGTON.

BOILER-CLEANER.

SPECIFICATION formingpart of Letters Patent No. 624,627, dated May 9, 1899.

Application filed May 14, 1898. Serial No. 680,704. (Nomodel.)

adapted for permanent attachment to a steamboiler and provided with a blade to traverse the bottom or lowermost point of the surface of the boiler in order to enable the operator to draw accumulations of mud and other foreign matter toward a blow-olf, the blade being so constructed and mounted that during the forward or operative movement of the apparatus it is rigidly held in the proper position to scrape the surface of the boiler, and during the return or backward movement it is adapted to swing or fold, so as not to push accumulations toward the end of the boiler which is remote from the blow-off.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is a side view of a boiler-cleaner constructed in accordance with my invention applied in 4the operative position to a boiler, the latter, with the guiding devices for the stem of the cleaner, being shown in longitudinal section. Fig. 2 is a detail View in perspective of the head of the cleaner, including the blade and the contiguous portion of the stem. Fig. 3 is a similar View of the guiding, packing, and blow-off devices. Fig. 41s a detail sectional view, en-, larged, of the stufling-box and guide.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

In the head or tube-sheet 1 of a boiler or similar device from-which it is desired to remove accumulations of sediment, scale, dac.,

tube-sheet, while connected with the lateral arm 6 is a blow-off pipe 7, having a controlling valve or cock 8. Extending axially through the alined arms 3 and 4 of the coupling is a cleaner-stein 9, which may be headed at its outer end, as shown at 10, and between which and the walls of the guide leakage is prevented by a suitable stuffing 'or packing box consisting of a body portion 1l, threaded -into the bore of the arm 4 and having a packin g-seat 1.2,an adjustable gland-cap 13,threaded upon the exterior surface of the body portion 11 and having a suitable wrench seat or grip 14, and a follower 15, fitted to slide in the packing-seat 12 and tianged, as at 16,' for engagement by-an interior shoulder 17 of the gland-cap.

The stem 9 may be ofsectional construction, with a detachable member 9a connected 'with the main orbody portion of the stem by journal portion 19, terminating in a downturned stop-arm 20. lMounted upon the jour- -nal portion 19 is a blade 21, having a curved operative or outer edge to traverse the interior surface of the bottom of the boiler, and the stop-arm 20 is arranged in the path of the rearward-swinging movement of said blade, whereby during the forward movement ot' the stem in the direction indicated by the arrow in Fig. l said stop-arm holds the blade in operative position to properly scrape the bottom of the boiler and draw accumulations of sediment and scale toward the point of outlet provided by the guide 2 and communicating valved blow-oft pipe 7, the diameter of the bore of the arm 3 of the coupling being larger than that of the stem to provide a su flicient annular passage for al-r lowing the sedimentthus accumulated contiguous to the blow off to be forced out through the pipe 7 when the valve 8 is opened.

The means illustrated in the drawings forV adapted to swing forwardly to the position' indicated in dotted lines in Fig. 1, whereby IOO ` blade during the forward movement of the it may pass freely over material accumulated upon the bottom of the boiler to avoid moving such material toward that end of the boiler which is remote from the blow-off. The blade 2l extends laterally beyond the vertical planel of the stem 9, whereby during this backward movement of the cleaner upward-swingingmovement of the blade is limited by Contact with the stem in the same way that the rearward-swinging movement of the cleaner is limited by the stop-arm 20.

It will be understood from the foregoing description that an important advantage of the device embodying my invention resides in the fact that accumulations of foreign matter upon the bottom of a boiler or otherl receptacle (it being understood that the apparatusy lmay be applied to mud-drums and other devices of a like nature) may be drawn toward a blow-off or equivalent outlet, whereby when the valve of such outlet is opened such accumulations may be discharged from the re'- ceptacle without withdrawing all of the water therefrom. l

Furthermore, the apparatus embodying my invention forms a permanent attachment to vthe boiler or equivalent receptacle, and the operator by a suitable reciprocation of the stem is enabled to ascertain without reducing the steam whether there are accumulations upon the surface of the boiler which would necessitate blowing off or which, if allowed to remain, would beliable to cause the caking of the sediment and the burning out of the boiler-wall.

Other advantages of the construction disclosed will be apparent to those skilled in the art to which the invention belongs, and it will be understood that in adapting the same to receptacles of different kinds various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

I-Iaving described my invention, what I claim is l l. -A boiler-cleaner having a reciprocatory stem provided with a laterally-offset journal portion and an extension forming a pendent stop-arm, and a blade mounted for swinging' movement upon said journal port-ion of the stem, said stop-arm being in the path of the swinging movement of the blade in one direction, substantially as specified.

2. A boiler-cleaner having a reciprocatory sion forming a journal portion and a further extension forming a pendent stop-arm, and

-a cleaning-blade mounted upon said journal portion, and extended in opposite directions beyond the vertical planes of the body portion of the stem and said stop-arm, whereby the forward and rearward swinging movements 0f the blade are limited, respectively, by the stem and the stop-arm, substantially as speciiied.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence ot two witnesses.

VALENTINE CLARK.

Vitnesses ANDY HILLRUGER,

WILL D. LANGHORNE.

`stem provided with a perpendicular extenv