US2655120A

US2655120A - Device for recrimping the head seams of drums

Info

Publication number: US2655120A
Application number: US254352A
Authority: US
Inventors: Henry F Niemann
Original assignee: SHERMAN D BECKLEY
Current assignee: SHERMAN D BECKLEY
Priority date: 1951-11-01
Filing date: 1951-11-01
Publication date: 1953-10-13
Anticipated expiration: 1970-10-13

Description

DEVICE FOR RECRIMPING THE HEAD SEAMS OF' DRUMS Filed Nov. l, 1951 2 Sheets-Sheet l Henry F. Niemann INVENTOR.

Oct. 13, 1953 H. F. NIEMANN 2,655,120

DEVICE FDR EECRIMPING lTHE HEAD sEAMs DE DRUMS Filed Nov. l, 1951 2 Sheets-Sheet 2 Henry F. Niemann INVENTOR.

Q BY my ghn; M

Attorneys Patented Oct. 13, 1953 DEVICE FOR RECRIMPING THE HEAD SEAMS OF DRUMS Henry F. Niemann, Sedalia, M0., assignor of fifty per cent to Sherman D. Beckley, Sedalia, Mo.

Application November 1, 1951, Serial No. 254,352

3 Claims.

Y This invention relates to a drum sealer and particularly for a manually operated device to be put on a. drum to seal a leak therein.

Metal drums for containing liquid material are constructed as substantially cylindrical bodies with a bottom and a head rigidly secured therein by means of a double reverse crimp seal. These seals are made either by inserting a sealing gasket between the material before it is crimped or by crimping it down and preferably welding or otherwise uniting the crimped edges. Because of the rough handling that these drums receive they frequently spring leaks through these crimped edges. It has heretofore been found necessary to weld or reweld the crimped edges to stop the leak. Since the welding expands the metal adjacent to the weld it has been found necessary to run the weld completely around the seam in order to provide a leak proof joint. Also if the leak is found after the drum is filled it is usually necessary to completely empty and clear the drum to prevent explosion during the sealing operation.

The present invention provides a means for recrimping the rims of steel drums in order to seal the leak without removing the contents of the drum. Since the present sealing method crimps only the leaky portion of the seam it is only necessary to extend the crimping action over the leaking part of the joint.

Therefore, in accordance with the present invention there is provided a base on which is mounted a beaded roller and a pressure block pivotally mounted on the base and pressed toward the base. A crimping roll is mounted in the pressure block and the crimping roll and beaded roll is seated on the crimped edge of the drum and pressure is applied while the crimping roll is turned to crimp and press the sealed edges into leak-proof engagement.

It is accordingly an object of this invention to provide an improved crimping roller.

It is a further object of this invention to provide an improved drum sealer.

It is a further object of this invention yto provide a drum sealer that may be utilized to seal a drum while it is full of liquid.

It is a further object of this invention to provide a drum sealer that only need be appliedto the leaking portion f the barrel.

It is a further object of this invention to provide a drum sealer which is readily portable from drum to drum.

It is a further object of this invention to provide a drum sealer that can be manually operated by one man.

y Other objects and many of the attendant advantages of this invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings in which:

Figure 1 is a top plan view of a drum sealer in place on a drum;

Figure 2 is a bottom plan view of a sealer;

Figure 3 is a cross section through the drum sealer taken substantially on the plane indicated in the line 3 3 of Figure l and showing the pressure block applied between the crimping roller and the beaded roller;

Figure 4 is an enlarged perspective View of the yoke; and

Figure 5 is an enlarged perspective View of the pressure block.

In the exemplary embodiment of the invention, the drum I0 is provided with a bottom I2. the drum I0 and the bottom I2 being rigidly and permanently connected to each other by means of a double inverse bend or crimp I4. The crimp I4 may be welded or may have material of various kinds between the bends to produce a leak` tight joint. Also the materials may be welded to each other braised, soldered or otherwise integrally united.

If rough handling or other accident should produce a leak to the seal I4 it can be recrimped by means of a sealer presently to be described.

The sealer itself comprises a base I6 preferably of cast iron having an upstanding bracket I8 at one edge thereof. The bracket I8 is preferably provided with a central passage so the bracket is substantially channel shape having two extending

anges

20 and 22, defining a channel 24 therebetween. A pressure block 26 has an extending rib 28 which substantially fits in the channel 24. Transverse passage 30 provided adjacent the top end of the rib 28 cooperates with

passages

32 and 34 in the

flanges

20 and 22. A rod 36 extends through the

flanges

20 and 22 and the rib 28 so that the block is pivotally mounted in the bracket I8. The rib 28 is rounded off at the upper corner 38 so that the block 26 may freely swing outwardly from the bracket I8.

The pressure block 26 is provided with a longitudinal passage 4I) for receiving the shaft 42 of a crimping roller 44 which is mounted on the lower end of the block 26 and journaled therein by means of a shaft 42. The shaft 42 extends upwardly out of the block 26 and is provided with recesses 4S adjacent the top thereof and a collar 43 is mounted on the shaft 42 and secured thereto by means 0f set screws 50 so that the shaft 42 is retained in the bore 40 to properly mount the crimping roll 44 at the lower end of the block 26. Bearing washer 52 is preferably inserted between the top of the roller 44 and the bottom of the block 26. The upper end of the shaft 42 extending beyond the collar 48 is provided with a non-round section, such as a square section 54 for receiving any suitable handle for applying the necessary pressure by turning the roll 44. In the present example, a double handled wrenchlike extension is provided with an opening 58 snugly engaging the .squareV portion 54 of the shaft 42 so that the roller 44 may be conveniently turned by a manual operation.

The base I6 is provided with a vertically extending passage 60 substantially parallel to the upstanding bracket |8. A beading roller 62 is provided with a shaft 64 which extends through the passage 32 to journally mount the shaft 52 in the base 20 so that the beading roller 62 `is journally mounted with respect to the base |6. A bearing washer 66 is usually installed between the top of the roller 62 and the bottom of the base I6. The top of the shaft 64 is provided withv an undercut section 68 and a collar 10 to be mounted on the topof theshaft -64 and secured thereto by means of a set screw 12 engaging the undercut portion 68 ofY the shaft 64 to retain the shaft 64 in mounted relation .in the base 6.

A-pair of

ears

16 and 18 mountedon the base in spaced relation to the

upstanding flange members

20 and 22 are provided with

transverse openings

80 and 82 for receiving

pins

84 and 86. A yoke Y90 isl pivotally mounted on the

pins

84 and 86 by means of

transverse passages

92 and 94. Ilhe' yoke 90 is substantially a bifurcated member having a web 96 and a pair of arms 98, |00. Ehe top corners of the arms 98 and |00 are rounded olf as at |02 so that the yoke 90 ymay be raisedupward but when it drops down it will be stopped by ,the square corner |03 and will not pass below center.

The block 26 is provided with an outwardly extending ledge` A|04 havinga depression |06 therein. The web.96 of the yoke 90 is provided with arbore |08 fin which is threadedly engaged a set screw having a knurl head H2. The end H4 andthe screw ||0 iswengaged in the recess |06 and-by tightening the screw ||0 the block 26 is pressed toward the base I6 so that the crimping roll-44 isf-pressed' toward the beading roller 62. The ypressure between the `two being determined bythe set screw H0. Preferably a lubricant passage H6 is provided in the block 26 so that the journal bearing of the shaft 42 may be constantly lubricated.

In order .to maintain the pressure normal between-the beading `roll V|52 and the crimping roll 42a plurality herein lshown as a pair of guide rolls and |22 are journaled in the base I6 and retainedtherein by collarsin -substantially the same manner vas indicated with the` roller 62. -Size of these rollers |20 andv |22V will Idepend on the size of 'the drum being operated on for the larger size, 55 gallondrum, large size rollers |20 and |22 will be used but for a gallon `drum afslightly smaller size of guide rollers |20 andl |22 will be utilized.

In order topreventinjury to the device and excessive accumulation of dirt on the fastening collars, a cover V|25 is constructed of suitable material such las .sheet metal and provided with ears |26 and |28 which-receive suitable fasteners such as screws |30.

In 'the operation of the device screw rH0 is opened and the bracket or yoke 90 is raised up so -thatthe pressure block may swing 'out and allowrthecrimping roller 44 to be adjusted onto the rim of a drum |0. Theyoke 90-is then rput in place'and the screw yend ||4 inserted in the recess |06 and the screw .tightened by means of the head ||2 to supply the necessary pressure betweenthe

rollers

44 and 62 after which the handle bar 56.is adjusted on the squared portion 54 and the shaft 42 rotated in any direction toadvance the crimping roller around the leaking portion of the seam I4.

-in, without departing from the true spirit of the invention.

Having idescribed the invention, what is claimed .as new `is:

l. A drum sealer comprising a base, an upstanding bracket on. said base, a pressure block pivotally attached to said bracket adjacent the topithereof, a pair of ears on said base adjacent the bottom of said bracket, a yoke pivotally mounted onsaid ears, a screw in said yoke 4for pressing said ypressure block `toward said base, .a longitudinal bore -in-said pressure block, a crimping roll including a shaft, said shaft journaled in said bore, means for rotatingsaidrshaft in said bore, a plurality of bores arranged in arcuate -formation in said base, a beaded rollerl a shaft on said roller, said shaftjournaled` in the central bore `of-said bores, ray plurality of guide rollers mounted in lsaid arcuately arranged boresadjacent .the beaded roller, said guide rollers maintaining a pressure point normal to said crimping andbeaded roller.

k2. A drum sealer comprising a base, an upstanding bracket on said base, a pressure block pivotally attached to said bracket adjacentthe top thereof, a pair of ears on said base adjacent the bottom of said bracket,a yoke pivotally mounted on said ears, a screwy in said yoke for pressing said pressure block toward lsaid base, a longitudinal bore in said pressureblock, a crimping roll including a shaft,said shaft journaled in said bore, means for rotating said shaft in saidlbore,,a plurality of bores arranged in arcuate formation in said base, a beaded roller, a shaft onsaid roller, saidshaft journaledin the central bore of a plurality of said bores, a guide roller mountedin a borefadjacent eachV side -ofsaid beaded roller for centering the pressure between said crimping roller and said beaded roller, a cover mounted'on said base.

3. A drum sealer comprising a base, anl upstanding bracket-adjacent one edge of .said base, a pressure block, said pressure `block being Vpivotally attached to saidbracket adjacent the end remote from said base, said pressure block having a longitudinal bore therethrough, a shaft journaled in saidfbore, a crimping roller rigidly mount ed on the-lower. end ofsaid shaft, a beading roller journaled on said base-in opposed relation lto* said 1 crimping rollen-a yokeincluding a pairof arms,

said arms being pivotally mounted on said base, a set screw threadedly-mountedin said yoke and engaging said pressure block for pressing said crimping roller ytoward said beading roller, and means for rotating the shaft carrying the crimping roller.

HENRY F. NIEMANN.

.References Cited ingthe yfile of this vpatent UNITED STATES PATENTS Number Name `Date 178,299 Hunter June 6, 1876 537,429 Alexander Apr. 16, 1895 1,306,168 v`Bowers June 10, 1919 1,693,064 Tipton Nov. 27, 1928 1,812,479 Hahnewann June 30,1931 2,334,407 Grebe Nov. 1,6, .19,43

FOREIGN PATENTS Number Country Date 504.160 France June 26,1920