US3538651A - Clamping means for tub liners - Google Patents

Clamping means for tub liners Download PDF

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Publication number
US3538651A
US3538651A US705646A US3538651DA US3538651A US 3538651 A US3538651 A US 3538651A US 705646 A US705646 A US 705646A US 3538651D A US3538651D A US 3538651DA US 3538651 A US3538651 A US 3538651A
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United States
Prior art keywords
tub
liner
flanges
lips
clamping
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Expired - Lifetime
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US705646A
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English (en)
Inventor
John F Rampe
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JEPMAR RESEARCH
JOHN F RAMPE
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JOHN F RAMPE
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Assigned to JEPMAR RESEARCH reassignment JEPMAR RESEARCH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: RAMP, JOHN F. AND RAMPE JOHN N., PARTNER D/B/A RAMPE RESEARCH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00

Definitions

  • ABSTRACT OF THE DISCLOSURE Clamping means for use in lining a finishing machine tub comprising (a) a plurality of elongated flanges extending horizontally, vertically or at an intermediate angle at approximately the level of the top of the tub; (b) a plurality of elongated clamping pieces coupled thereto by means of fastening elements; and (c) means associated with the clamping pieces for exerting downward pressure on the top edges of the tub lining, thereby forcing the lining into intimate contact with the side walls and bottom of the tub.
  • the tub of a typical orbital finishing machine has in the past been interiorly lined with a thick layer of an adherent elastomeric material such as vulcanized rubber, a rubber-like polymer, or a plastisol residue. Linings of this sort are resistant to impact and abrasion at ordinary room temperatures but sometimes develop a tendency to deteriorate under heavy-duty operating conditions requiring, or productive of, substantially elevated temperatures. In such circumstances, it usually becomes necessary, sooner or later, to remove and rehabilitate the tub itself, which is a difiicult, time-consuming and costly operation.
  • an adherent elastomeric material such as vulcanized rubber, a rubber-like polymer, or a plastisol residue.
  • Replaceable tub liners have come into use in the relatively recent past; for example, composite liners consisting'of thick layers of rubber or rubber-like elastomeric materials backed by thin steel sheets.
  • composite liners consisting'of thick layers of rubber or rubber-like elastomeric materials backed by thin steel sheets.
  • the metal sheet should comprise a tough, strong, easily formed ferrous metal alloy which in the usual case need not be greater than about of an inch in thickness. Metal sheets having these characteristics are readily available on the commercial market.
  • FIG. 1 is a diagrammatic illustration of a preferred way of introducing the liner into the tub
  • FIG. 2 is a transverse vertical section, taken as if on line 2--2 of FIG. 1, through a fully lined tub;
  • FIG. 3 is a fragmentary enlargement of the upper lefthand corner of FIG. 2;
  • FIGS. 4 and 6 are transverse vertical sections through two other tubs of similar but specifically different designs
  • FIG. 5 is a top plan of the tub shown in section in FIG. 4;
  • FIG. 7 is a fragmentary enlargement of the upper right-hand corner of FIG. 6;
  • FIG. 8 is a similar fragmentary enlargement of a modification.
  • FIG. 1 Illustrated generally at 1, FIG. 1, is an orbital finishing machine characterized by an instrument console 2, a housing 3 for the supporting and operating mechanisms (not shown), and an open-top tub 4.
  • tub 4 is shown as provided with a conventional discharge chute 5, a discharge opening 6 normally closed by a slideable door (not shown), and a shallow end wall 7 directly above the discharge opening.
  • a blank end wall 8 At the opposite end of the tub is a blank end wall 8.
  • end walls 7 and 8 Between end walls 7 and 8 the long sides of tub 4 extend upward as indicated in FIG. 1. At the level of the top edges of end walls 7 and 8, the two sides turn abruptly outward about a short radius so as to form elongated horizontal flanges 9. The latter are so designed and arranged as to enable them to accept elongated clamping pieces 10. One of the latter is shown as lying on the top surface of console 2.
  • FIGS. 2 and 3 show the manner in which flanges 9 and clamping pieces 10 cooperate with each other. From these figures, it will be evident that the top portions of the liner project upward into zones just below the common horizontal plane of flanges 9. It will be noted that the liner is illustrated as consisting of a metal backing 12 to which is adhered a thick layer 13 of rubber or a rubber-like elastomer. Thus the liner is a composite liner of the type referred to above.
  • Clamping pieces 10 which will be described at greater length hereinafter, act on liner 12, 13 by pressing down ward on elastomeric layer 13.
  • the force so exerted tends to push layer 13 and therefore metal backing 12 straight down, resulting in particularly close surface contact between the shell of the tub and backing 12, not only in the vicinity of the side walls but also at the bottom of the tub.
  • a heavy steel cradle 15 supports tub 1. It consists of a stout supporting plate 16, a plurality of arcuate steadying pieces 17 rigidly attached thereto, a stringer 18 underlying and reinforcing plate 16, and a plurality of oppositely facing angles 19 that are bolted to plate 16 and welded to uprights 20.
  • the components just described make up the vibratory structure; i.e., that part of the machine which, in the course of its operation, is vibrated from eccentric 21.
  • the semi-cylindrical bottom portion 22 of the tub is welded at 23 (FIG. 2) to bottom plate 16.
  • the walls of the shell of the tub, designated 24, rise vertically until they reach the zone wherein they turn outwardly to form flanges 9.
  • the radius of curvature is held to a minimum in order to permit metal backing 12 to extend upward as far as possible.
  • clamping pieces 10 take the form of inverted channels in which the walls of the channel are formed by depending lips.
  • lips 31 are locating lips designed to bear against the depending guide lips 30 provided along the outside edges of flanges 9.
  • Lips 32 are force-exerting lips designed to bear against the top portions 11 of composite liner 12, 13. It is the downward pressure exerted by lips 32 that forces liner 12, 13 into surface contact with shell 24. In effect, the liner is reinforced by the bottom and side walls of the tub, leaving no appreciable voids between the liner and shell 24.
  • tub 34 is charcterized, among other things, by an end wall 35 comparable to end wall 8 of FIG. 3, by a generally cylindrical shell 36, and by vertical flanges 37 that flank the top opening shown in FIG. at angles of approximately 120 degrees to the adjacent parts of shell 36.
  • Cooperating with flanges 37 are inclined clamping pieces 38, bolts 39 and nuts 40.
  • Clamping pieces 38 are generally similar to clamping pieces of FIGS. 1 to 3; however, lips 41 and 42 are angled outwardly in relation to the clamping pieces themselves.
  • Locating lips 41 engage the top edges of verical flanges 37. Force-exerting lips 42 press downward on the elastomeric layer 44 of composite liner 43, 44. The action is similar to that already described; viz., pressure is exerted on elastomeric liner 44 and thus on metal backing 43 with consequent elimination of voids between the liner and shell 36.
  • FIGS. 6 and 7 are directed to a modification wherein the flanges flanking the top opening strike upwardly and outwardly at angles of 45 degrees to the horizontal, thus giving an included angle of 90 degrees.
  • Tub 45 consists of shell 47, metal backing 48 and elastomeric layer 49. They are held together as shown in FIG. 7.
  • the radius of curvature in zone 50 is comparable to that in the embodiment of the invention shown in FIGS. 2 and 3.
  • flanges 51 are provided with longitudinally extending guide lips 52.
  • Clamping pieces 53 are provided with locating lips 54 and forceexerting lips 55. Locating lips 54 engage guide lips 52 along the edge portions of flanges 51. Force-exerting lips 55 extend in a generally downward direction to engage elastomeric layer 49 and metal backing 48. Nuts 56, bolts 57 and washers 58 complete the assembly.
  • FIG. 8 a modification is shown wherein shell 61 of tub 59 is provided with horizontally extending flanges comparable to those appearing in FIGS. 2 and 3. As indicated in FIG. 8, the side walls of the shell curve upwardly until they reach zone 60, wherein they turn outward in such fashion as to produce an included angle of approximately 60 degrees. As before, the angle of curvature in zone 62 is relatively small.
  • Flanges 63 from which guide lips 64 depend, are held to clamping pieces 68 by nuts 65, bolts 66 and washers 67.
  • the clamping pieces are characterized by depending lips 69 and 70, the latter of which tends to urge the liner in a downward direction. Assuming that the liner is properly sized and proportioned in relation to shell 61, this action provides reinforcement for the liner over virtually its entire surface.
  • the finishing media, the objects to be finished (work pieces), and the treating liquid introduced with them combine to produce a relatively high load line. Consequently, nearly all portions of the liner are subjected to abrasion, to hysteresis-induced temperature changes, and to the dynamic action of the work pieces as they rise and fall within the mass.
  • liners that stand away from the shell tend to soften, deteriorate and require premature replacement.
  • the liners of the present invention do not stand away from the shell and therefore give much better results.
  • An open-top processing tub lined in such manner as to provide a maximum of surface contact between the lining material and the interior of the tub comprising a plurality of flanges flanking the tub opening; a plurality of elongated clamping pieces in juxtaposition thereto; depending portions on the clamping pieces for engagement with the proximate edges of the lining material; and means for urging said clamping pieces toward said flanges to exert a downward pressure on the lining material through the intervention of said depending portions.
  • Means for attaching a rubber-faced lining material to an open-top processing tub in such manner as to provide a maximum of surface contact between the lining material and the interior of the tube comprising a plurality of elongated flanges flanking the tube opening; a plurality of clamping strips in juxtaposition thereto; downwardly directed portions on the clamping strips for engagement with the lining material; and means for urging said clamping strips and flanges toward each other to exert a down 6 ward pressure on the lining material through the interven- References Cited tion of said downwardly directed portions.
  • Clamping means according to claim 10 wherein the lining material takes the form of a thick layer of a e, h 1 2,458,808 1/1949 Turnbull 24-263 X 122? iff i figgfii attac ed to a rela We yt m 5 3,183,630 5/1965 Wright 51-163 12.
  • Clamping means according to claim 11 wherein the backing sheet is formed of a ferrous metal alloy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Crushing And Grinding (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US705646A 1968-02-15 1968-02-15 Clamping means for tub liners Expired - Lifetime US3538651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70564668A 1968-02-15 1968-02-15

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US3538651A true US3538651A (en) 1970-11-10

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US (1) US3538651A (de)
DE (1) DE1906623C3 (de)
FR (1) FR2001956A1 (de)
GB (1) GB1195664A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091575A (en) * 1976-08-16 1978-05-30 Rampe Research Bowl-type vibratory finishing machine
JP2016202689A (ja) * 2015-04-24 2016-12-08 新東工業株式会社 食器類の洗浄方法及び洗浄機

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101094A1 (de) * 1981-01-15 1982-08-05 Roto-Finish Co., Inc., 49003 Kalamazoo, Mich. Auskleidung einer schleif- oder poliertrommel und verfahren zur herstellung und anwendung einer solchen auskleidung
IT1177674B (it) * 1983-05-04 1987-08-26 Michel Thonney Macchina per assicurare la sbavatura,la scriccatura e/o la lucidatura di prodotti alla rinfusa
US4521116A (en) * 1984-06-01 1985-06-04 Gordon W. Orthner Mixing apparatus with removable drum liner
DE3526861A1 (de) * 1985-07-26 1987-01-29 Roesler Gleitschlifftech Masch Telleranordnung fuer fliehkraft-gleitschleifmaschinen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305044A (en) * 1939-04-28 1942-12-15 Rub R Slat Co Conveyer and elevator belt
US2458808A (en) * 1944-06-02 1949-01-11 Int Harvester Co Supporting strut
US3183630A (en) * 1963-11-04 1965-05-18 Royal K Wright Rock polishing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305044A (en) * 1939-04-28 1942-12-15 Rub R Slat Co Conveyer and elevator belt
US2458808A (en) * 1944-06-02 1949-01-11 Int Harvester Co Supporting strut
US3183630A (en) * 1963-11-04 1965-05-18 Royal K Wright Rock polishing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091575A (en) * 1976-08-16 1978-05-30 Rampe Research Bowl-type vibratory finishing machine
JP2016202689A (ja) * 2015-04-24 2016-12-08 新東工業株式会社 食器類の洗浄方法及び洗浄機

Also Published As

Publication number Publication date
FR2001956A1 (de) 1969-10-03
DE1906623B2 (de) 1978-06-22
DE1906623A1 (de) 1969-10-02
DE1906623C3 (de) 1979-02-08
GB1195664A (en) 1970-06-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: JEPMAR RESEARCH 1246 HIGH STREET, FAIR PORT HARBOR

Free format text: CHANGE OF NAME;ASSIGNOR:RAMP, JOHN F. AND RAMPE JOHN N., PARTNER D/B/A RAMPE RESEARCH;REEL/FRAME:004188/0878

Effective date: 19820927