US1720525A

US1720525A - Apparatus for treating pipes, bars, etc

Info

Publication number: US1720525A
Application number: US238004A
Authority: US
Inventors: Potthoff Kurt Theodore
Original assignee: U S Galvanizing & Plating Equi
Current assignee: U S Galvanizing & Plating Equi; U S Galvanizing & Plating Equipment Corp
Priority date: 1925-04-18
Filing date: 1927-12-06
Publication date: 1929-07-09
Anticipated expiration: 1946-07-09

Description

July 9, 1929. POTTHQFF 1,720,525

APPARATUSFOR TREATING PIPES, BARS, ETC

Original Filed April 18, 1925 INVENTOR i f 77 4; ATTORNEY;

Patented July 9, 1929'.

UNITED STATES PAT ENT OFFICE.

KURT THEODORE POTTHOFF, OF BROOKLYN, YORK, ASSIGNOR TO U. S. GALVANIZ- ING & PLATING EQUIPMENT CORPORATION, A CORPORATION OF NEW YORK.

APPARATUS FOR TREATING PIPES, BARS, ETC.

Original application filed April 18, 1925, Serial No. 24,053. Divided and this application filed December 6, 1927. Serial No. 238,004.

This invention relates to an apparatus for cleaning and pickling articles and particle larly to the cleaning and pickling of a tubular article such as a pipe.

,The object of. the invention is to provide an apparatus. which will automatically prepare the pipes for coating. passing the p pes through the operation so that uncoated pipes are received at one end of the apparatus and are delivered cleaned and pickled at the other end. i y e i Further objects of the invention will appear from the following description taken in connection with the accompanying draw-v ings, in which Fig. 1 is a sectional elevation of an apparatus adapted to carry out the invention. Fig. 2 is a plan view of an apparatus shown in Fi 1. v

and 4 are sectional views illustrat ing the alternative methods of conveying and tipping the pipe. c

The pipes to be treated are delivered from a rinsing tank; which removeshall cleaning liquid and rolled down incline 36 into a treating liquid 37 such as an acid both forp1 ckling t-he pipes by chemical action remov ng scale and renewing the surfaces ofthe p1pe preparatory to receiving a coating material. I have found it important to make the action of such a solution even and thorough particu larly within the pipe. To attain this the solution within the pipe is constantly renewed so as not to become weakened and irregular in its action. Each pipeon rolling down incline 36 and. semicircular tracks 38 is received by the arms 39 of spiders 40, these spiders being angularly offset as shown so that (viewed in endwise projection Fig. 1) the arms 39 atone end of thepipe are out of register with the arms at the other end. As the pipe passes down into the liquid one end of the pipe is thus higher than the other and the liquid will naturally tend to circulate thoroughly in the interior of the pipe distimes.

a natural circulation and the renewal of the solution and the removal of any accumulated air bubbles. The raised end of the pipe will pass out of the liquid 37 and the interior liquid will of course flow down toward the lower end and the entire pipe in inclined posltion \villbe raised out of the liquid so as to drain off the solution from the interior of the ipe. The pipe thus inclined is passed on to tie correspondingly inclined support 41 across which it rolls to the semicircular tracks 42 where it is received by the arms 43 of spiders 44. These spiders 44 are offset with relation to each otherin a direction opposite to the offset of the spiders 40 so that the inclination of the ipe at the entrance portion of the tracks 42 is opposite to the inclination at the entrance portion of tracks 38. The pipe is thus carried down along the tracks 42 with its near end (Fig. 1) below the other end with the same advantageous natural circulation of the pickling liquid. Similarly at the bottom of tracks 42 the following arms 43 pick up the P1138 and gradually reverse its inclination and carry it in inclined position up the discharge portion of tracks 42 draining it in a direction opposite to the previous draining and delivering the pipe to the inclined support 45 where itis deposited with its near end (Fig. 1) highlifting it in oppositely inclined positions are repeated in the tank 47 to subject the pipe to the action of the solution a desired number of In the apparatus shown there are six of these units. V

Fig. 3 i is a sectional view showing the tipping of the pipe by the offset of therotatable conveyor arms on opposite sides with relation to each other, and Fig. 4 is a similar section showing the pipe tipped by having one of the conveyor tracks t" at a higher level than the other, the conveyor arms in such case not necessarily being offset with relation to each other. It is obvious that still other means may be employed to give inclination to the pipe as it is passing through the liquid.

The raw pipes received in at one'endoff the apparatus are thus cleaned and pickled on the inside and outside and delivered in perfeet cleaned and pickled condition at the disonly necessary to correspondingly changethe apparatus and for articles which will not roll to. arrange'the positive feeds to pass the articles from one feed to the other instead of interposing an inclined draining portion between the feeds as shown. Itis obvious that one or more of the operations may be omitted where not desired or required and that various modifications of the apparatus may be resorted to Within the scope of the invention and without departing from the novel combination set'forth in the appended claims.

This'application is a division ofapplicants copending application Serial No.

24,053 filedApril 18, 1925, for method and appar'atus'for treating pipes, bars, etc.

I claim: 1. In apparatus for treating tubular articles, the combination with a tank adapted to contain liquid, of means for feeding the articles through said tank and renewing the liquid within the interior of the article in alternate opposite directions during its progress through said tank. 2; In'apparatus for treating tubular articles, the'combination with a tank adapted 4 to contain liquid, of means for feeding the articles through said tank and repeatedly renewing the liquid within the-interior of the article in alternate opposite directions during its progress through said tank.

3. In apparatus for treating tubular articles, the combination with a tank; adapted to contain liquid, of means for feeding the articles through said tank and renewing the liquid within the interior of the article I during its progress through said tank by inclining the article in alternate opposite directions.

4. In'apparatus for treating tubular articles, the combination with a t'ank.adapted to contain liquid, of means for feeding the articles through said tank and renewing the liquid 'within the interior of the article during its progress through said tank by inclining the article at changing inclinations.

5. In apparatus for treating tubular articles, the combination with a tank adapted to contain liquid, ofineans for feeding the articles through said tankan'd renewing the liquid within the interior of the article during its progress through said tank by incliningthe article at changing inclinations in opposite directions. I I r 6. In "apparatus for treating tubular articles, the combination with a' tank adapted to contain liquid, of means for feedingthe articles through said tank and renewing the liquid within the interior of the article during its progressthrough said tank by lifting the end of the article above the surface of the liquid.

7. In apparatus for treating tubular articles, the combination with a tank adapted to contain liquid, of means for feeding the articles through said tank and renewing the liquid within the interior of the article during its rogress through said tank including means or lifting the end of the article above the surface of the liquid and then lifting the entire article above the surface of the liquid and then re-submerging the article in the liquid.

8. In apparatus for treating tubular articles, the combination with a tank adapted to contain liquid, of means for feeding the articles through said tankand renewing the liquid within the interior of the article during its progress through said tank including means for lifting the end of the article above the surface of,the liquid and then lifting the entire article above the surface of the liquid and then re-submerging the article in the liquid in inclined position.

9. In apparatus for treating tubular articles, the combination with a tank adapted to contain liquid, of means for feeding the articles through said tank and renewing the liquid within the interior of the article during its progress through said tank including means for lifting the end of the article above the surface of the liquid and then lifting the entire article above the surface of the liquid and then re-submerging the article in the liquid in inclined position and repeating the process with opposite inclination of the article.

10. In apparatus for treating tubular articles, the combination wit-h a tank adapted to contain liquid, ofmeans for feeding the articles through said tank and renewing the liquid within the interior of the article during its progress through said tank including means for lifting the end of the article above the surface of the liquid and then lifting the entire article above the surface of the liquid and then re-submerging the article in the liquid in inclined position, and repeating the process with alternating oppositeinclinations of the article.

11. Inapparatus for treating pipes, bars and the like, the combination with a tank adapted to contain liquid, of means for feeding-the article through said tank including means forsupporting it in an inclined position while passing through a part of said tank and in a reversely inclined position while passing through another portion of the tank.

12. In apparatus for treating pipes, bars and the like, the combination with a tank adapted to contain a liquid, of means for conveying the article through the tank and supporting the article inclined in one direc tion at one portion of the tank and inclined in the opposite direction at another portion of the tank.

13. In apparatus for treating pipes. bars and the like, the combination with a tank adapted to contain liquid, of means for feeding the article through said tank and supporting it at diti'ereut intervals in oppositely inclined positions \vhile passing through said tank, said means being adapted to raise one end of the article above the surface of the liquid at a portion of the tank.

14. In apparatus for treating pipes, bars and the like, the combination with a tank adapted to contain a liquid, of means for conveying the article through the tank and supporting the article inclined in one direction at one portion of the tank and inclined in the opposite direction at another portion of the tank, said means being adapted to raise each end of the article above the liquid during a portion of its travel.

15. In apparatus for treating pipes, bars and the like, the con'ibination with a tank adapted to contain a liquid, of means for conveying the articles through said tank and comprising means for alternately inclining' the articles in opposite directions during their travel through said tank.

16. In apparatus for treating pipes, bars and the like, the combination with a tank adapted to contain a liquid, of means for conveying the articles through saidv tank and comprising means for alternately inclining the articles in opposite directions during their travel through said tank, and alternately raising opposite ends of the articles above the surface of the liquid in said tank.

KURT THEODORE POTTHOFF.