US1248847A - Tube-cleaning tool. - Google Patents

Description

C. WI. GMFHN.

TUBE MEANING TOOL.

APPLICATION man JAN-15.19M-

mmm m INVENTOR.

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'GECIL IVL GRIFFIN, OF PITT$BURGIL PENNSYLVANIA,

TUBECLEANING TOOL.

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Specification of Letters Patent.

Patented Dec. 4t, Wit.

Application filed January 15, 1917. Serial No. 142,356.

To all whom it may concern:

Be it known that T, CECIL M. GRIFFIN, a citizen of the United States and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Tubecondenser tubes, the tubes are in the cone denser and have water passed through the same, so that the interior of such tubes will collect dirt, scale and other foreign matter such as is usually found in raw water, thereby reducing the efficiency of such tubes and requiring them to be cleaned frequently and at great expense, loss of time and inconvenience.

The object of my invention is to provide a cheap, simple and efficient tool for cleaning the interior of tubes, which can easily be applied to such tubes, will clean the same completely and uniformly, and in a rapid and convenient manner.

To these ends my invention consists, generally stated, in the novel construction, arrangement and combination of parts, as hereinafter more specifically set forth and described and particularly pointed out in the claim.

which my invention appertains to construct and use my improved tube cleaning tool, I will describe the same more fully, referring to the accompanying drawing, in which- Figure 1 is a side elevation of my improved cleaning tool as applied to a tube. Fig. 2 is a front view of the same. Fig. 3 is a rear end view of the same.

Like symbols of reference herein indicate like parts in each of the figures of the drawin fist illustrated in the drawing, A represents my improved cleaning tool, which is provided with the piston or shank 2, having a plunger or head 3 at one end of the same, and on the outer end or face of such head an inclined boss 4 is formed.

Extending around the shank 2 are the scrapers 1, which are in the form of coiled t5 springs, and bent-to such shape for provid To enable others skilled in the art' to ing spiral portions 5 around such shank. These portions 5 are formed by bending a single piece of spring metal to form the coils or convolutions 6 in such portions, which portions extend alternately back along the shank 2 from an end portion 7 formed between such portions. The cleaner or scraper 1 is supported on the shank 2 by means of the end portion 7 thereon fitting within a slotted portion 8 in the front end of said shank and is adapted to be held in place by means of a riveted pin 9 passing through said end and slot and in front of said end portion.

The free ends 10 of the spiral portions 5 are adjacent to the head 3, while the coils 6 in both of said portions are of the same diameter but slightly larger than the tube 1% for the purpose hereinafter described, with such diameter depending upon the tension desired for operating in such tube. The

cross-section of coils 6 are tapered in cross-' section from the front end of the shank 2 toward the free ends 10 of the same, so that the tension will be uniform through the length of the scraper 1, and the inside diameter of the coils slightly larger than the outer diameter of the shank 2 in order to allow for the scraper to engage against the interior surface of the tube B.

When it is desired to place the tool A within the tube B, it is simply pushed in front end first, the coils 6 of the scrapers 1 compressing and stretching until they conform to the size of the tube, so that the outer faces of such coils will be sprung against the inner surface of such tube and bear against the same. After the tool A is thus in position at one end of the tube 18,

and it is desired to clean the interior sur-' face of such tube, water under a high pressure from a nozzle (not shown) is passed into such tube to push it through, and the boss 4 will fit into the nozzle to guide such nozzle into the tube. By forcin the tool A through the tube B, it will be 0 vious that the coils 6 of the scrapper 1 will scrape or loosen all dirt, scale or other foreign matter from the interior surface of the tube, and the water from the nozzle passing around the head 8 and along such surface will assist in loosening up such foreign matter and carry the same out the other end of such tube as the tool is pushed through the same by the Water.

ltllt) It will thus be seen that my improved tube cleaning tool'is capable of being'easily and cheaply manufactured and is ready for instant use When required. Thedevice Will adjust itself to conform to the size of the tube by elongation of the same, is capable of being carriedalong' with other tools and will not require any adjustment to use the same, While practical experience with the" same has demonstrated that tubes can be cleaned cheaply and quickly, and a" great saving in loss of time and labor accomplished.

It will be evident that various sizes of tools can be kept on hand for cleaning various'sizes of tubes, and that various modifications and changes in the design, construction and application of the same may be resorted to, withoutdepartingtfrom the spirit of the invention or sacrificingv any of its advantages.-

-What Irclaim as my invention and desire tosecure by Letters Patent is ..enlarged head on its rearward end, a

scraper formed of a single piece of spring metal loosely mounted in said recess and bent to form rearwardly extending helix portions around said bar, a cross pin extending through said bar and across said recess to prevent accidental displacement of said scraper, and an engaging portion formed on the'rear end of said head.

.In. testimony whereof, I, the said CECIL 'M. GRIFFIN, have hereunto set my hand.

CECIL M. GRIFFIN. Witnesses A. D, B. h/IILLER,

J L N; Coonn.

*Gopies ofthia patent maybe obtained for five centseach, by addressing" the Commissioner of Patents, 'Washingt'on, D. 0.

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