US1153953A

US1153953A - Boiler-cleaner.

Info

Publication number: US1153953A
Authority: US
Inventors: Edmund Rankin
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-07-26
Filing date: 1915-07-26
Publication date: 1915-09-21
Anticipated expiration: 1932-09-21

Description

E. RANKIN.

BOILER CLEANER. APPLICATION FILED IuLY 26,1915.

1,1 ,953111. l I 11116111611 sept. 21, 1915.

'which the follown EDMUND RANKIN, 0F LINCOLN, ILLINOIS.

:wurm-CLEANER.

To all 'whom t mag/concern.'

Be it known that I, EDMUND RANKIN, a citizen of the United States, residing at Lincoln, in the county of Logan and State of Illinois, have invented certain new and useful Improvements in Boiler-Cleaners, of

is a specification.

This invention re ates to devices for blowing off scum, dirt, foam, etc., which rises to the surface of the water in steam boilers, and its object is to provide a novel and improved oatcontrolled device of this kind which has a large effective working area, and which is so mounted that it remams perfectly level with the surface of the water in all positions of the boiler.

With the herein stated object in view, the invention consists in a combination and arrangement of parts to be hereinafter de-V scribed and claimed, reference being had to the accompanying drawing, in which- Figure l is a longitudinal sect1on of a fragment of a steam boiler showing `the device in operative position therein; Fig. 1s a plan view of the device; Fig. 3 1s a sect1on on the line 3 3 of Fig. 1; Fig. '4 1s a sectional detail on the line 4-4 of Fig. 3, and Fig. 5'is a section on the line 5-5 of Fig. 2.

Referring specifically7 tothe drawlng, 5 denotes an ordinary steam boiler in which the device is mounted, the same comprising two pipes 6 arranged in alinement and connected at their. inner ends to the opposite branches of a T-coupling 7. The side branch 8 of the coupling has a swiveling connection with a hollow arm 9, and the latter is swiveled to a coupling member 10 to which is onnected an outlet pipe 11. 0n a suitable place on the boiler wall is mounted a nipple l2 to which is connected, outside the boiler, a blow olf valve 13. Inside the boiler the pipe 1l is connected to the nipple 12.

The connection between the coupling member 10 and the arm 9 is such that the latter is free -to swing in a vertical plane. The parts 6 form a skimmer pipe pivotally connected midway between its ends to the outer end of the arm 9 by the coupling 7, the pivotal axis being horizontal and parallel to the pivotal axis of the connection between the member, l0 and the arm 9. It will therefore be evident that a flexible joint is provided for the skimmer pipe, which allows said pipe to rise and fall bodily without tilting from the horizontal, asl the water level in the boiler changes. The skim- Specication bf Letters Patent.

Application led J'uly 26, 1915. Serial No. 42,082.

Patented Sept. 21, 1915.

hold the skimmer pipe level with or when there is a rush of water when starting or stopping.

The inlets to the skimmer pipe are apertures 15 in the top thereof, and the oats 14 arel designeditovhold the pipe submerged in the water a sufficient distance to take in the scum, dirt, foam, etc., without the escape of steam. The skimmer pipe adjusts itself instantly to changes in the water level, and floats easy, the fioats 14 on'each end acting .to balance the same. As only two floats are necessary, the device takes up very little space in the boiler.

The sections 6 of the skimmer pipe taper in the direction of their outer ends, the largerends ybeing therefore at their connection with the coupling 7. The diameter of the outlet through the arm 9 and flexible joints is also greater than the diameter of the large ends of the skimmer pipe sections, and the diameter of the outlet pipe 11 is greater than that of the arm and the flexible joints. This arrangement gives an outlet of progressively increasing area, resulting in a free and unobstructed flow, and a less weight' to be borne by the floats.

e swivel or pivot joint between kthe member 10 and the arm 9 is made by forming saidmember with a cylindrical cage 16 at one end which seats loosely in a cylindrical end portion 16El ofr the arm. The outer end of the cage carries a disk. 17 betweenl which latter and a shoulder 18 on the member 10, the arm is held and prevented from slipping olf the cage. The 'arm swings freely on the cage.

The joint between the arm 9 andthe coupling 7 is the same as that between said arm and the member 10 just described.

. The outer end of each skimmer pipe section 6 carries a ca 19 having two sockets 20 into either one ofP which is screwed a short stem 21 on the iioat 14, whereby the latter is connected to the skimmer pi e section. Two sockets are provided in or er that the float may be set to obtain the required submergence. The sockets are located alongside each other, and one of them is at the outer end of the cap and has side openings 22. The outer end of the skimmer pipe is not closed by the cap, which, with the openings 22, prevents clogging.

By providing the skimmer pipe with an outlet connection midway between its ends instead of 'at vone end, greater eiciency is obtained, as the suction distance is only onehalf as far, and the inlets throughout the entire length of the pipe are in action. In a skimmer pipe of a length to reach a suitable distance through the boiler,and provided with an end outlet, the suction is not strong enough to reach throughout the entire length'of the pipe, and hence a skimming action is obtained for a relatively short distance from the outlet only, leaving the remaining length of the pipe useless. This objection is entirely obviated by having the outlet midway between the ends of the pipe, this arrangement permitting the use of a v maximum length of pipe and resulting in a maximum suction distance. i

The, pipe 11 may be mounted at any conl venient place on the boiler wall, and if placed ydown near the flues it will take the place of a settling tank. The device may be mounted with the pipe 11 below the skimmer pipe as shown in the drawing, or above the same, or at the same level.

I claim:

1. A boiler cleaner 'comprising a skimmer pipe, a vertically swinging support for said pipe, and a pivotal connection between the support and the pipe intermediate the ends ofthe latter, and floats connected to the skimmer pipe.

2. A boiler cleaner comprising a vertically swinging support, and a :float-balanced skimmer pipe pivotally connected intermediate its ends to the'support.

3. A boiler cleaner comprising an outlet pipe, a hollow arm pivotally coupled to said pipe to swing in a vertical plane, a skimmer pipe pivotally coupled intermediate its ends to the outer end of the hollow arm to swing in a vertical plane, and oatsconnected to the skimmer pipe. i

Ll. A boiler cleaner comprising an outlet pipe, a hollow arm pivotally coupled to said pipe to swing in a vertical plane, a T-coupling swivelingly connected to the outer end of the hollow arm, a skimmer pipe composed of alined sections connected at their innerv ends to the T-coupling and extending in opposite directions therefrom, and floats connected to said sections.

5. A-boiler cleaner comprising a skimmer pipe, a vertically swinging support foi-,said pipe, and a pivotal connection between the support and the pipe intermediate the ends of the latter', caps mounted on the outerl ends of the skimmer pipe, said ends being open and -the caps having sockets at their outer I ends provided with side openings, and floats connected to the sockets.`

In testimony whereof I aix my signature in the presence of two witnesses.

- EDMUND RANKIN.

Witnesses:

HARRY A. YocoM,

- J oHN W. RANKIN.