US2644196A - Wax slabbing method - Google Patents

Description

July 7, 1953 A. J. BEVEVINO 2,644,196

WAX SLABBING METHOD Original Filed Nov. 29, 1948 3 Sheets-Sheet l- "I l l 26 27 l 7 H I 10 1 15 Z i F INVEJYTOR. finyelo f Bean/m0 avg 22%;?

July 7, 1953 Original Filed Nov. 20, $948 3 Sheets-Sheet 2 1942. ELI 6 f1 .3. In J Y INVENTOR.

fln ela f 36218211220 By K J July 7, 1953 A. J. BEVEVINO wax. SLABBING METHOD 3 Sheets-Sheet 3 Original Filed Nov. 20, 1948 INVENTOR. fnye/o J Beam/V320 BY Q jfmww ing the various relay and Patented July 7, 19 53 1:

UNITED STATE WAX SLABBING METHOD Petrolia, Pa"; assignor to Angelo J I Bevevino,

L. Sonneborn Sons, Inc.,

ware

a corporation of Dela- Original application November 20, 1948, Serial No. 61496. Divided and this application De.- cember 10, 1949, Serial No.'-132,343 j 2 Claims; I (01. 18-4,7.5)

This invention relates to new and useful improvements in wax slabbing method and is a division of my copending application, Serial No. 61,196, filed November 20,1948.

Wax, and particularly wax of petroleum origin, is normally supplied to the trade and. in the form of blocks or slabs. these blocks or slabs is by moulding of thewax in suitable forms into which the wax'is poured" in substantially molten condition and removed after chilling.

O-ne object of the invention comprises an improved method of slabbing wax.

Another object of the invention comprises a method of slabbing wax permitting substantially continuous operations.

The foregoing and still further objects of the invention will be seen from the following descrip- One method of producing tion read in conjunction with the drawings in.

which:

Fig. 1 represents a top view, with parts broken away, of a construction including oneembodiment of a device for the practice of my invention;

Fig. 2 represents a side view of the construction shown in Fig. 1 with parts broken away;

Fig. 3 illustrates an end view of a construction which includes an alternative embodiment of such device;

Fig. i represents an enlarged side view, with parts in cross section, of the cutter-bar and knife construction shown in Figs. '1 and'2; 1

Fig. 5 shows an enlarged s de view .of the cutter bar and knife construction illustrated in Fig. 3;

and',.

Fig. 6 is a Wiring diagram schematically show time switch connections involved in the automatic timing operations as applied to the preferred embodiment of them-1 vention.

Specifically referring to the drawings, l designates a cooling drum mounted on a frame 2 with its hollow axle ii and the bearings 3. The lower periphery of cooling drum i dips into the wax tank 5. Hollow axle 4 of coolingdrum l carries on one side the driving sprockett connected by Way of the sprocket chain 1 to a suitable motor 7 (not shown) I its ends water connections 8 and 9 for the circulation of cooling medium interior of drum l suitably provided with circulating means in the conventional manner. Scraper blade it is mounted against cushioning spring force of the spring H by way of the upright member l2 and the hinged arm l3. roller 54 is mounted on Hollow axle 4 of drum l carries at through the hollow Guide frame 2 With its periphery.

on one side in substantially tangential alignment with a cutter bar l5 (Figs. 1, 2 and. 4) pivotally eries of these guide rolls.

mounted by way of the shaft portions low and. bearings I! on the upright framework. l8. The

shaft portion'of cutter bar It is extendedthrough frame IE to carry at its end the tiltingorpivot bar 19 actuable by the solenoid elements j20iand'. 202. respectively. .The cutter bar 15 defines aslot' 2|, being substantially of inverted frustoconical cross-section. The opposing edges 22 and, 22a at the lower ends of the slot 2L of cutter barv l5 define relatively sharp cutting edges. A cutterv knife 23, having the pointed head portion 24. (Fig.

4) is mounted on frame 18 in substantiallystationary position with respectto the cutter bar 15 and with the knife head portion 24. extending just sufficiently into the lower end of space 2! to be brought into cutting engagement with the cutting, edges 22 and 22a. upon the tilting or pivoting. of

the cutter bar l5 to the one or-the other side,,as.

guide roll 25a but may carry an independentr' sprocket andchain arrangementidentical with that of sprocket 2t and chainZZTdriving guide roll 25a and synchronized for a peripheral speed.

approximately that of drum: I. The guide rolls 25 and 25a are so mounted relative the stationary: knife 23. that the latter is positioned substantially symmetrical with respect to the o-pposingperiph- Two forks 28 and 29, carried respectively on shafts 30 and 3 l, are mounted on frame i8. Fork shafts 30 and 3| carry at their ends the= clutch disks 32 and 33 secured for axial movementunder the spring pressure of .springsfitand- 35 but? mounted for rotation with shaftsiw and 3t.-

Shafts 30 and Si carry pulleystfi and. 31 freely rotatable on shafts 30 and 3! but-substantially mounted against axial movement and for frictional engagement with the clutch disks 32 and 33 respectively.

Fork shafts 39 and 3i carry, substantially fixedly secured thereto, ratchet disks 38 and 39 respectively. A pivotably tiltable barmember. is: carrying the ratchet stops 4! and 42 is secured. to the frame l8, and is controlled in its pivoting;

movement by the solenoids 43 and 4A. The bar is.

mounted for engagement of the stops li'and lil with the ratchet cams or teeth of the ratchet disks 33 and, 39 respectively, depending upon the position of pivot of the bar 40.

In practical operation the rotation of the cooling drum l picks up a chilled coating of wax 45 on the drum periphery from the molten wax in tank 5. 'The coating of wax is separatedfrom the drum as the latter rotates, by means of the scraper knife I!) yielding the wax sheet 45a which.

until the cut-off portion of the wax sheet 45a is completely wound onto fork 28 and until the the new end of the Wax sheet 45a now feeding over roll 25a has reached winding position. At this, point splen id 44 is deenergized, solenoid 43 is energized, thereby tilting bar 40 into stopmotion position for the fork 28, and moving the jstop 42 out of engagement with the ratchet tooth of the ratchet disk 39 and permittin fork 29 to commence winding of the wax sheet 45a.

The

.. z ncrater w l: hen re the w und-up wa sly-Bet:fromthe stopped fork 28 by slipping the sired, W la and onto the roll 25. The knife 23 issubstan tially held in position by the bar l9, which is kept in the position shown by the energization of the solenoid a pulling the coremember Zjlbjntg; the. solenoid coil.

As. illustrated in Fig. 2.the wax sheet 45a. haspassed through. slot 2| alongside roll 25 and. between the arms of thefork 28; to ashort-distance below.v the same. At this, point the solenoid 43,;is. still energized, pulling the core. 43a into its coil, therebytilting or pivoting bar 40 into the. posi tion. shown, in which the ratchet stop 4! engages one-.01; the ratchet teeth of the ratchet disk 38. In this position the. motor or other. moving forc (notshown). rotatesthe clutch pulley- 36.which is. freelyrotatable on forkshaft 3.0 and frictionally engages. theclutch disk 32 againstthe. force. of the spring 34-. Though clutch disk 32 is secured. to-- the shaft. to rotate with the same, the. ratchet stop will prevent the rotation of the. shaftand-thus .of the fork.

If now the solenoid 43 is de-energized. and. solenoid- 44 energized, the latter will pull the core 441) into the-coil, therebymoving the stop. ll. out of engagement with the ratchet tooth of the disk 38', whereupon the frictional engagement between clutch disk 32 andthe rotating disk 3.6:Wi11' cause. shaft), and with it fork 28, tocommence turn.- ing. As may be readily-seen, the continuing rotationof=the fork-will wind up thewax sheet on thesame.

After a predeterminedamount ofwax. hasbeen wound onto the fork 28, solenoid: 20a isde-energized andsolenoid 28- energized, causing core 2-llc..-to be pulled. intothe coil, thereby pivoting thebar |9= into the opposite. direction, now mov. ingthehead portion. 2-4, of they knife. 23 against. the. cutting. edge 22 of theslot 2| of the cutter. bar. 15-, thereby cutting the waxsheet. 4.5m

After. the. bar la has-moved into tilted cutting. position for the wax sheet45a. being wound; onto. fork 28; theknife, 23 is now slanted to form an apron or guide. surface in the direction, of the roll.:25 a. Thewax sheet, 4 5% continuin to feed; from drum I. over guide. roll I.4:-and through slot.

2.1, will now pass.throu gh theaperture between the knife head. portion 2.4 and the cutting edge' 22d of bar. l5; ontoand'over the apron, surface defined by. the. body. portion 24b of, the inclined knife. 23.: Wax sheet 450,. isithus passed-intercom, tactwithrtheorolllfi and picked. upby. the. same, to be led along its periphery, awayfromroll. 25,; to..between. the arms. of the fork 29.

After-the cuttingpivot of, bar I9 bythe. en r-.

gization of, thesolenoid 20, the fork 2,8 will con.- tinueto rotate While ,fork29 isv prevented.from ro.-. tation-by the stop 42 held in position by the-en-. ergizedsolenoid 44; The rotation of fork12'8'and stop-emotionv position of fork. 29;is maintained.

'used 'to operate the solenoids.

" to the.- cutter" bar; I 5a..

, ment. by; pi,v.ot-ing--. the, bar.

solenoids, so that-in one, positionof pivotthe cutsame from the fork arms. The wound-up wax may then b slightly compressed to form the de- Qonventionalindividual hand switches may be It is preferred, however, to connect the solenoids to conventional type time switches and to so set the same that the time switches. alternating the energization of Solenoids, 2 0.. andv 29 will permit: a. time interval j forthe feeding ofqthe wax sheet 415a sufficient.

to give the desired thickness of: slab. The time switch. alternately energizing solenoids. 4.3."and 4A. is. then. set. for about the same. time inter-val between. energizations. but. for av definite lagv of a predetermined-period sufficient ineach case. to. permit the completev winding of the cut-off portion of the wax sheet 450, and the moving of the end of the feedin Wax sheet into winding position on the. other forkafter energization of the solenoids 20 and 2111a and-cutting operation of thebar 2:3. Depending upon the requirements of the; trade. or other considerations, the amount of wax wound on the forks for the preparation of a. wax. slab may be varied, as desired, by varying the. settingof the time switch for the time interval desired to elapse. between the energization of the solenoids on bar IS.

The speedzof rotation of 'the pulleys 36 and 37 ispreferably so..ad iustedz that they will rotateforks 28 andi29 bywayofithe clutchdisks 32 and 33.s.omewhat. faster. than the feeding speed of the web 45a, onto. the forls; Thesprings 34. and 35 are then. preferably so arranged that the frictional,I engagement between theclutch disks 32 and 33, with their respective pulleys 36 and 31 issuchthatthe spring. tension is less. than the strength ofthe; wax. sheet. feeding. onto the fork,

so that when theafork. starts. towind' the. sheet on itsperiphery, the. speed" is; never greater or less, but the. same asgthe sheet speed, regardless of the number of layers on it, since in each case the. diifrential in speed between the rate of travel-.of. the wax sheet; andthe. peripheral speed 0 he. ork. when. em ty; Dageof-the clutch is; compensated by slips.

Specifically referring to Figs. 3 and .5, an;

alternative embodiment ofthe. invention is.;illustrated, As there; shown, the cutterbar- 15a. is. mounted; for ni sta le: movem nt on. shaft. iti

resting bearing. l1, mounted on frame I 8;...The

n eli a n t slca e substant lly tati ers:-

Slot 3;] g in; cutter bar, [5a substantially. of: the. ams.:. s. mbo imen nd. as uttine dee and m e ps tiv lr A niv barz flasmil rly o trolled by. qlene ds only o e hownl as. the vo b r.- I9 of thcaboye; described embodiment, is. secured" n. is ase. instead; f. V cutting positions, the latte remains substantially stationary and the movingethe, knife j ZSdulllljO;

cutter bar is subjected to. a 7 limited axial movehe revio sly described I90... by means. of. its

ting edge 22?) is engaged by the head portion 240 of the knife 23a, while in the other position the cutting edge 22c engages the head portion 240 of the knife. In the first stated position the wax sheet 45a moves along the right side of the relatively wide body portion of the knife 23a, which is so arranged that the web end will hit the right guide roll 25a, while when the cutting bar is in the last mentioned position, the Web will be guided over the knife body portion onto the left roll 25. In other respects the operation of this embodiment is substantially the same as hereinabove described with respect to the first mentioned illustration of my invention.

Within the broad concept of my novel method, the same essentially comprises, as may be seen from the foregoing, the continuous reeling of a substantially continuously moving sheet of Wax, cutting the said sheet after a predetermined interval and compressing the reeled wax into slab form. Within the preferred embodiment of my invention, the just recited steps represent a half cycle, the entire cycle being completed by the passage of the wax sheet into second reeling position, reeling and cutting the same and passing the sheet into first reeling position for repetition of the cycle.

Specifically referring to Fig. 6 showing the wiring diagram and related parts of a wax slabbing machine in connection with the invention, the following is an illustrative example of the modus of operation involved.

Assuming safety switch BI is closed to energize the circuit, the timer 63 and relay 69 become energized. The contacts of relay 69 energize relay which in turn energizes the right shear solenoid a, relay 69 sealing relay 10 and starting timer 65 to time for the desired predetermined period permitting the wax sheet to pass through the right fork 29 into reeling position. At this point, timer 65 times out and closes to energize the left pawl or ratchet solenoid 43 of bar 40 thereby lifting the stop 42 out of its stop position and permitting the right fork 29 to turn and thereby reel up the continuously feeding wax sheet. Timer 63, having been energized by the closing of switch BI, is set to time out after a predetermined interval permitting the desired amount of wax to be reeled onto the right fork. After the lapse of this interval, timer 63 times out and energizes relay 6! which operates to seal relay 61, de-energize relay 69 and energize relay 68. Relay 68 in turn operates to de-energize timer 63 for re-setting and starts timer 64 to time. De-energization of relay 69 closes the contacts to energize relay H which in turn closes to seal relay H. After timer 63 has had approximately one to two second to re-set itself, timer 64 times out, opening to de-energize relay 61. De-energization of relay 61 opens the contacts to break the seal, de-energizes relay -68 and closes to energize relay 69. Relay 68 opens to re-set timer 64 and closes to start timer 63. Relay 69 closes to energize relay 12 which in turn deenergizes the right shear solenoid 20a, closes to seal relay 12, closes to energize the left shear solenoid 20 causing the wax to be sheared and directed onto the left reel and left fork 28, and further closes to start timer 66 to time for a predetermined interval set to permit the wax sheet to pass into reeling position relative left fork 28. At the end of th predetermined interval for timer 66, the same times out, de-energizing thereby the left pawl orratchet solenoid 43 of the bar 40, and energizes the right pawl or ratchet solenoid 44. This causes coil 44b to be drawn into solenoid coil 44 causing stop 42 to be pulled into sto position for the right fork 29. The wax reeled or wound onto the right fork 29 can then be removed while the left fork 28 is rotating to reel in the wax sheet continuously feeding onto the same.

As a sufiicient amount of wax has been reeled up onto the left fork 28 after a period pre-set therefor, timer 63 again times out, energizing relay 61. Relay 6! opens to de-energize relay 69, closes to seal relay 6'! and closes to energize relay 68, which in turn opens to de-energize timer 63 and close to start timer 64 to time. Timer 63 opens, though there is no action as relay 61 is sealed. Relay 69 opens to de-energize relay 70, which in turn opens to re-set timer 65 and to de-energize relay H. Timer 65 opens without action. Relay H opens to de-energize relay 12, which in turn opens to break the seal, de-ener- 'gizes the left shear solenoid 20 and opens to re-set timer 66. Timer 66 opens to de-energize the right hand pawl or ratchet solenoid. While timer 64 was timing out, timer 63 has re-set. Timer 64 times out, opening to de-energize relay 67, which in turn opens to de-energize relay 68 and closes to energize relay 69. Relay 68 opens to re-set timer 64 and closes to start timer 63 to time again. Timer 64 closes. This completes one entire cycle of operations and the circuit is now again in the starting position. Both shear solenoids 20 and 20a and pawl solenoids 43 and 44 are de-energized. During this timing period of timer 63, relay 69 and relay 10 are energized which will again energize the right handshear solenoid 20a and the operation continues for another cycle.

As may be also seen from the wiring diagram, instead of conducting all operations substantially automatically, manual control may be resorted to. Thus, transfer switch 62 may be, placed in the hand controlled position, in which case safety switch 6| should be closed. Shear action of the knife 2411. can then be controlled by manual switch 61. Fork action can be controlled by manual switch 68. All timers and relays are then de-energized.

I claim:

1. Method of slabbing wax which comprises reeling a, substantially continuous sheet of wax to form a multi-layered tubular band of wax. cutting said sheet of wax from said band after a predetermined interval, and compressing said tubular band of wax into slab form.

2. Method according to claim 1 in which said reeling is effected at a first reeling position, and which includes in substantially continuous operation passing the sheet of wax, after cutting from said band, to a second reeling position, reeling th sheet of wax at said second reeling position to form a multi-layered tubular band of wax, cutting the sheet of wax from said band at said second reeling position after a predeterminted interval, passing the sheet of 'wax to said first reeling position for repetition of the operation, and com-pressing said tubular band of wax from said second reeling position into slab form.

ANGELO J. BEVEWINO.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,612,724 Housekeeper Dec. 28, 1926 Y 1,710,320 Perry Apr. 23, 1929 2,355,006 Millspaugh Aug. 1, 1944 2,360,275 Rau Oct. 10, 1944

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