US2091921A - Pickling machine - Google Patents

Pickling machine Download PDF

Info

Publication number
US2091921A
US2091921A US147515A US14751537A US2091921A US 2091921 A US2091921 A US 2091921A US 147515 A US147515 A US 147515A US 14751537 A US14751537 A US 14751537A US 2091921 A US2091921 A US 2091921A
Authority
US
United States
Prior art keywords
coil
tank
mandrel
acid
pickling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US147515A
Other languages
English (en)
Inventor
Greer Agnes J Reeves
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US147515A priority Critical patent/US2091921A/en
Priority to US158708A priority patent/US2096512A/en
Application granted granted Critical
Publication of US2091921A publication Critical patent/US2091921A/en
Priority to DEG96780D priority patent/DE707864C/de
Priority to FR830557D priority patent/FR830557A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/02—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
    • B65G49/025—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid conveyor feeding and discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/02—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
    • B65G49/04—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction
    • B65G49/0409—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length
    • B65G49/0413—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance through the bath
    • B65G49/0418—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance through the bath chain or belt conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/02—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
    • B65G49/04—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction
    • B65G49/0409—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length
    • B65G49/0436—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath
    • B65G49/0472—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a non continuous circuit
    • B65G49/0477—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a non continuous circuit with lifting means for circuit parts
    • B65G49/0481—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a non continuous circuit with lifting means for circuit parts with lifting means locating at the bath area
    • B65G49/0486—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance from bath to bath along a non continuous circuit with lifting means for circuit parts with lifting means locating at the bath area provided with rotating or pivoting arms

Definitions

  • Pickled hot rolled strip is not usuallypurchascd Vby the cold rolling plant, not only because of thev increased cost ofthe same but because the pickled coils will quickly rust if held in 'storage' for any appreciable time before cold rolling. It is therefore common practice in the smaller cold rolling plants to uncoil the hot rolled strip and'pass it through a roll bending machine in order to break the hot mill scale and open the coil into which bent rods are insertedl to maintain the desired spacing of the strip within the coil. 'I'he coil is then placed on end in a' picklins tank in which relativeag'itationgis produced between the coil and the acid, after which the pickled coil is ⁇ washed as in usual pickli'ng practice.
  • bent rods while thenllower edges may contact at places resultingin be eiilciently and economically pickled with a
  • An important object of the invention is to v providemeans for rotating a coil as itprogresses t throughs pickling tank, .therotation of the coil 5 producing the necessaryl agitation of the plckling
  • a further object is to suspend a c oil within a pickling tank by means oi' a mandrel or rod which is rotated as it moves across the pickling tank, '10v consequently rotating the coil suspended thet'c-l on as it 'through ⁇ the acid.
  • Another object is to provide for looselyV recoiling the strip so that whenthe coil issuspended upon the mandrel the lower wraps or'layers of the 15 Y coil will open up, permitting free access of the acid to all portions oi the surface thereof and as the mandrel is rotated and. moved forward -across the pickling tank, the coil will beslowly rotated upon the mandrel, continuously opening a0 up successive vportions of the wraps or layers thereof and submerging them in the acid.
  • Still another object is to provide means for alternately agitating and submerging each por-f tion o! the coil in the acid and exposingv the same 25 to the atmosphere so as to produce clean pickling of all portions of the-strip.
  • AV further object is to provide novel transfer v means for transferring the coil from the pickling' tank to the ilrst water tank, from the nrst water tank to the second water tank, and Yfrom the 35p second water tank.v
  • a still further'4 object is to provide an up-ender which receives the coil from the second water tank and up-ends the. coil onto a conveyor or the like by means of which the coil may be trans ⁇ 40 ferred tothe cold rolling mill or other destination.
  • vA still further object is toprovide a novelv v lmandrel adapted'to ride upon tracks associated with the pickling tank and water tanks and pro- 45 vided with sprockets adapted to be engaged by drive chains for rotating the mandrel along said tracks.
  • Fig. 1b a similar view of the discharge end portion of the pickling tank, the tilting coil transfer which transfers the coils to the first water tank, and theflrst water tank;
  • Fig. 1c a similar view showing the coil transfervwhich transfers the coils from the first water tank tothe second water tank, the second water tank, the coil transfer which transfers the coils from the second water tank and the up-ender and conveyor;
  • FIG. 2a a'top plan view of the mechanism shown in Fig. 1a;
  • FIG. 2b a top plan view shown in Fig. 1b;
  • Fig. 2c a top plan view of the mechanism shown in Fig. 1c;
  • Fig. 3 an enlarged transverse sectional view through the pickling tank, showing a mandrel of the mechanism mounted on the tracks, driven by the chains and supporting a coil in the acid;
  • Fig. 4 a longitudinal sectional view taken as on the line 5-5, Fig. 3;
  • FIG. 6 an enlarged detail elevation showing the manner in which the sprockets upon the mandrel are engaged by the drive chains;
  • Fig. '1 a section taken as on the line 8-8, Fig. 6.
  • the machine comprises generally the loose coiler A, the gravity coil storage B, the coil loading mechanism C, the acid tank D, the coil similar parts tank E, first water. tank F, coil transfer from the first water tank to the second Water tank G, the second water tank H, coil discharge mechanism I, up-ender lJ and gravity conveyor K ar- 5 ranged in the sequence enumerated.
  • 'I'he loose coiler A may be of usual and well known construction, comprising a series of bending rolls I through which the strip I'I is passed and coiled loosely into a coil I2 which may 0 be ,supported upon the rolls I3.
  • a plunger I may be provided and operated as bythe air or hydraulic cylinder I8.
  • the gravity coil storage B which may comprise a platform inclined at a slight angle away from the loose coiler
  • Inclined rails 24 are mounted upon the frame I9 and located between the stop I1 and the loading mechanism C.
  • Thisloading mechanism includes a rocker shaft 25 journaled as in the bearings 26 and provided with a spaced pair of upwardly disposed arms 21 having the forked upperends 28.
  • a motor (not shown) or other suitable driving means, is provided for oscillating the shaft 25.
  • a rearwardly projecting foot 29 is carried by end of the projecting portion 30 thereof check-- ing the forward movement of the coil.
  • a mandrel indicated generally at 33 is then inserted through the open'center of the coil and asv the cylinder 23 is reversed, the weight of the coil is transferred to the mandrelfwhich is supported upon the rails 24. The mandrel then rolls downward and forward upon these rails until it is caught in the forked ends 28 of the loading mechanism arms 21, the coil being then in the position shown at 12b in Fig. 1a.
  • the pickling unit D is located directly beyond the coil loading mechanism and includes, the elongated tank 34 preferably located below the floor level, as shown, and having the rails 35 carried at each side of the tank as by the bracket 36 which may be connected'in any suitable manner to the side walls of the tank near'the upper edges thereof.
  • each of the rails 35 is located an endless chain 31 located over sprockets .38 land 39, positioned near the forward and rear ends of the acid tank respectively, and over the curved chain guides 40 and 4I located below the sprockets 38 and 39 respectively and' positioned to upon a shaft 46 journaled through the bearing brackets 43, the gears meshing with pinions 41 upon a shaft 48 also journaled in said bearing brackets.
  • the shaft 48 may be connected through suitable gear reduction or the like as indicated at 49, to a motor 50 located at oneside of the acid tank.
  • the sprockets 39 at the other end of the tank are mounted'upon short shafts 5I journaled in bearing brackets 52, a gear 53 being mounted upon each sprocket shaft and meshing with a gear 54 upon'the shaft 55 which is journaled through both of the bearing brackets 52.
  • bothof the chains31 may be driven in the direction of the arrows shown in Figs. la and 112, the movement of the two chains being synchronized.
  • the upperstrand of each chain may be supported as upon rollers or rods 51.
  • a downwardly and forwardly curved guide 58 preferably having an upwardly ared entrance mouth 59, is located near the entrance end of the acid tank adjacent to each of the chains 31 and adapted to receive the pintles 50 of the mandrels 33 to guide each mandrel into position beneath the lower strands of the chains so that the sprockets 6I upon themandrels will engage said lower strands of the chains as the flanged wheel portions 62 of the mandrels are received upon the rails 35, the chains thus driving the mandre'ls and causing them to roll forward upon the rails 35, suspending at least one-half of each coil within the acid in the positions indicated at I2C, the rotation of each mandrel as it moves forwardly upon the rails causing the coil suspended aesinet therefrom to be rotated through the acid, agitating the acid by the movement of the coil and alternately exposing each portion of the coil to the pickling acid and to'the atmosphere.
  • mandrels are formed of suitable acid-proof materiall so as to resist the action of the acid to' ⁇ which they are subjected, and if desired, annular shoulders
  • the first water tank 64 comprising a part of the rst washing unit F, is located directly beyond the acid tank and preferably at a lower level than the Aacid tank, as best shown in Fig. 1b.
  • the transfer unit E is located between the acidv tank and the first washing tank and comprises a shaft 65 journaled in bearings .66 and provided with a spaced pair of coil transfer arms 61, each having a coil engaging hook 68 at its free end.
  • the shaft 65 ⁇ may be//connected through suitable gearing indicated generally at A69, to a motor 10 adapted to be operated by a limit switch located at 1
  • a limit switch located at 1
  • the sprockets of each mandrel become disengaged from the driving chains 31, the mandrel rolls down a slight incline 12 and is deposited in the hooks 68 of the coil transfer arms, at the same time operating the limit switch 1
  • one of the hooks 68 is slightly longer than the other so that as the mandrel is raised to remove the coil from the acid tank, the mandrel and coil are tilted endwise, permitting the acid to drain from the coil back into the acid tank before the coil is transferred to the first washing tank.
  • the washing tank 64 is preferably of greater width than the acid tank so as to receive the entire length of the mandrel therein as best shown in Fig. 2b. Rails 13 are supported inside of the tank 64 and spaced from the side walls thereof,
  • a pair of driving chains "it, similar to the chains 31, are provided for moving the mandrels with the coils suspended thereon through the tank 6d, these chains being located over the fory ward and rear sprockets 'i5 and 'it respectively,
  • and 82 are located below the sprockets 15 and 16 respectively, for guidingthe lower strand of each chain 14 into engagement with the sprockets 6
  • Gears 84 upon the sprocket shafts 11 mesh with gears 85 mounted upon a shaft 86 journaled in the bearing brackets 19, these gears in turn meshing with pinions 88 upon a shaft 89 also journaled in the bearing brackets 19.
  • the shaft 89 is connected as through reduction gearing 9
  • a gear 92 may be fixed -upon the, shaft 18 of each of the sprockets 16, said gears meshing with the gears 93 upon a shaft 94 journaled through the bearing brackets in order to assist in synchronizing the movement of the chains 14.
  • the second water washing unit H may include the tank95 which is substantially similar to the tank 64 but which may be of less length, as indicated in Figs. lc and 2c.
  • the coil transfer mechanism G is located between the first and second washing tanks and may comprise a shaft 96 journaled in bearings 91 and provided with the spaced coil transfer arms 99 having hooks 99 at their free ends'. Both of these-hooks may be of the same length as it is not necessary that the coil be tilted endwise as it is lifted out of the washing tank 618, as is desirable in lifting the coil from the acid tank.
  • the rails 13 are downwardly and forwardly inclined as at S00 in order to deposit the mandrel onto the hooks 99 of the coil transfer arms.
  • the shaft 95 of the coil transfer mechanism may be connected through suitable gearing indicated generally at
  • 04 may be located within the second water tank 95 to receive the mandrels from the coil transfer mechanism as they are guided through the downwardly and forwardly curved guides
  • 96 are provided above said rails for engagement with the sprockets of the mandrels to drive them along the rails in the manner above described relative to the acid f tank and the first washing tank. These chains are located over sprockets
  • 08 may be mounted upon short shafts journaled in the bearing brackets M2 and gears
  • 3 may be fixed upon said shaftsand in mesh withgears Hd mounted near opposite end portions of the shaft M5 journaled in the bearing brackets H2.
  • the sprockets lill may be mounted upon short shafts
  • the gears IIB may mesh with pinions lil upon the shaft
  • 04 may be inclined downwardly as at
  • These arms are carried by the shaft
  • One of the hooks may be longer than the other in order that the water will drain from each coil as it is lifted out of the tank 95.
  • 28 is connectedk by suitable gearing indicated generally at
  • the coil discharge mechanism includes a cradle
  • 35 depends from the cradle and is connected to the plunger
  • the coils after passing through the second water tank 95, as indicated at
  • the up-ender indicated generally at J is adapted to receive the coil from the cradle
  • This up-ender may include a pair of substantially semicircular rockers
  • 44 ofthe up-ender is adapted to receive the coil from the cradle
  • may then be operated to rock the upender, bringing the roller platform
  • each coil of material is loosely coiled upon the loose coller indicated generally at A, it is discharged onto the inclined gravity coil storage platform B and rolls down until it contacts the stop 32 as indicated at
  • the stop 32 is lowered out of the path of the coil, permitting the coil to roll onto the upper surface 3
  • a mandrel 33 may then be inserted through the center opening of the coil and as the cylinder is operated to move the stop back tothe full line position shown in Fig. 1a, the weight of the coil -will be received upon the mandrel which is sup-l ported upon the inclined rails 24, permitting the mandrel with the coil thereon to roll forward on the rails ⁇ until the ends of the mandrel are received in the forks 28 of the coil transfer arms 2i.
  • the arms 21 When the motor or other driving means for the shaft 25 is operated, the arms 21 will be lowered, entering the ends of the mandrel into the curved guides 58 which guide the mandrel down onto the rails where the sprockets 6
  • the mandrel thereof will be disengaged from the chains 31 and will roll down the inclined ends 12 of the rails and be deposited' in the hooks 68 of the coil transfer arms 51.
  • the coil transfer arms will deposit the ends of the mandrel in the curved guides 83 which guide the mandrel onto the rails 13 in the rst water tank 64, the sprockets upon the mandrel being engaged by the drive chain 14 rotating the man drel forwardly along the rails 13 and carrying the coil suspended therefrom and submerged in the.
  • Pickling apparatus lfor pickling a coil of metal including a tank containing liquid, a mandrel upon which the coil is supported, a track associatedwith the tank upon whichthe mandrel is. supported,. and conveyor for moving the mandrel valong the tracki'n a substantially f horizontal' direction and cooperating means on -theconveyor means and mandrel for rotating the i 't mandrel as itis movedalong the track whereby Vthe coil is rotated and moved in a substantially horizontal ⁇ direction through the liquid.
  • V '1 The Pick1ing apparatus for picklln'g a lcoil of metal, including a tank containing liquid, a mandrel upon which the coil is supported, and 'conveyor means for continuouslymoving the mandrel along the tank in a. substantially horizon- 1 l5 tal direction and continuously rotating the mandrel as it is. moved along the tank whereby the v'coil is .continuously rotated and continuously -moved .in a substantially horizontal'direction .throughthe liquid.
  • Pickling apparatus includinir'a..v tank con- ⁇ liquid, .a second tank 'containing fliquid. located beyond 'named tank, amandrel for supporting' a cilofmetal to be treatcdgffcon-l veyor for 'moving the mandrel theV f tank,.cooperating means .on the conveyor.v meansand. mandrelfor for.
  • Pickling apparatus including'. a tank containing acid, atank containing water located beyond the acid tank, means-for passing a coil of metal to be'treated through the acid tank in a substantially horizontal 'direction' and rotating the coil as it is passedjthrough the acid tank,
  • Pickling apparatus including. a tankv conacid, 'a tank containing vwater located beyond the acid tank,fa second water tank located beyond ⁇ the rst mentioned water tank, means for a ⁇ coil of metal ktovbe treated'through the soia taurina-.substantially horizontal direction and rotating the coil as it is passed through, the
  • ooilasit is removed.
  • apparsa including a 4tout oonacid,'atankcontaining waterlocated bewater-tank lomos beyond the iirst mentioned water tank, means iorpassingacoilofmetaitobetreatedthrough the acid tank in a substantially horiaontal direc for passing the coil through the second water tank.
  • m a substantially horizontal direction and rotating the coil as'it is passed through the second water tank, means for removing thev coil from the second water tank and tilting the coil ⁇ as it is removed, and means for turning the coil on endafter it is removed from the second water tank.
  • Pickling apparatus including a tank containing acid, a tank containing water located beyond the acid tank, a mandrel vfor supporting a coil of metal to be treated, means adjacent to the top of the acid tank for forwardly moving and rotating the mandrel for passing the coil i partially submerged in the acid through the acid tank in a substantially horizontal direction and rotating the coil as it is passed through the acid tank. means tortransferring the mandrel with.

Landscapes

  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
US147515A 1937-06-10 1937-06-10 Pickling machine Expired - Lifetime US2091921A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US147515A US2091921A (en) 1937-06-10 1937-06-10 Pickling machine
US158708A US2096512A (en) 1937-06-10 1937-08-12 Charging device for pickling machines
DEG96780D DE707864C (de) 1937-06-10 1937-12-01 Einrichtung zum Beizen von Blech- oder Drahtspulen
FR830557D FR830557A (fr) 1937-06-10 1937-12-08 Perfectionnements aux machines à décaper les métaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US147515A US2091921A (en) 1937-06-10 1937-06-10 Pickling machine

Publications (1)

Publication Number Publication Date
US2091921A true US2091921A (en) 1937-08-31

Family

ID=22521883

Family Applications (2)

Application Number Title Priority Date Filing Date
US147515A Expired - Lifetime US2091921A (en) 1937-06-10 1937-06-10 Pickling machine
US158708A Expired - Lifetime US2096512A (en) 1937-06-10 1937-08-12 Charging device for pickling machines

Family Applications After (1)

Application Number Title Priority Date Filing Date
US158708A Expired - Lifetime US2096512A (en) 1937-06-10 1937-08-12 Charging device for pickling machines

Country Status (3)

Country Link
US (2) US2091921A (fr)
DE (1) DE707864C (fr)
FR (1) FR830557A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608982A (en) * 1943-10-05 1952-09-02 Metalwash Machinery Co Shaft bearing seal
US2658008A (en) * 1944-01-06 1953-11-03 Carrier Engineering Co Ltd Method of treating vehicle bodies and chassis
US20120027541A1 (en) * 2008-01-31 2012-02-02 Canrig Drilling Technology Ltd. Pipe-handling apparatus and methods
WO2016122695A1 (fr) * 2014-01-29 2016-08-04 Golden Aluminum Company Procédé pour former une coupe pour fabrication de pattes et d'extrémités

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757362C (de) * 1939-08-10 1952-07-21 Agnes Jane Reeves Greer Verfahren und Vorrichtung zur Nassbehandlung von Metallspulen
US2652841A (en) * 1950-12-08 1953-09-22 Anlo Inc Article cleaning machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608982A (en) * 1943-10-05 1952-09-02 Metalwash Machinery Co Shaft bearing seal
US2658008A (en) * 1944-01-06 1953-11-03 Carrier Engineering Co Ltd Method of treating vehicle bodies and chassis
US20120027541A1 (en) * 2008-01-31 2012-02-02 Canrig Drilling Technology Ltd. Pipe-handling apparatus and methods
US8454296B2 (en) * 2008-01-31 2013-06-04 Canrig Drilling Technology Ltd. Pipe-handling apparatus and methods
WO2016122695A1 (fr) * 2014-01-29 2016-08-04 Golden Aluminum Company Procédé pour former une coupe pour fabrication de pattes et d'extrémités

Also Published As

Publication number Publication date
DE707864C (de) 1941-07-05
FR830557A (fr) 1938-08-03
US2096512A (en) 1937-10-19

Similar Documents

Publication Publication Date Title
US2091921A (en) Pickling machine
US3338376A (en) Tube machine
US2106706A (en) Conveyer mechanism
US2880943A (en) Horizontal belt mat winding machine
US561714A (en) Harry
US1718063A (en) Continuous pickling apparatus
EP3019029B1 (fr) Appareil de cuisson d'une feuille de pâtes
US2042655A (en) Material treating and handling apparatus
US1727894A (en) Bar-web-bending machine
US1656528A (en) Pickling apparatus
US2275793A (en) Descaling, cleaning, and coating machine
US2818044A (en) Greasing machine for bearings or the like
USRE26052E (en) Wire handling apparatus
US2120843A (en) Pickling machine
US2087978A (en) Pickling apparatus
US1925134A (en) Galvanizing machine
US1535024A (en) Pickling machine
US996290A (en) Apparatus for pickling metal.
US586858A (en) Apparatus for pickling or washing metal
US2679852A (en) Dipping machine for bagged foodstuffs and other articles
US1543733A (en) Apparatus for handling metal sheets after pickling
GB498860A (en) A method of and apparatus for pickling metal
US1643186A (en) Machine for pickling coils of wire or rods
US3796362A (en) Batch-off storage festoon
US2270892A (en) Pickling machine