US2664676A - Finishing of workpieces - Google Patents

Finishing of workpieces Download PDF

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Publication number
US2664676A
US2664676A US165423A US16542350A US2664676A US 2664676 A US2664676 A US 2664676A US 165423 A US165423 A US 165423A US 16542350 A US16542350 A US 16542350A US 2664676 A US2664676 A US 2664676A
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United States
Prior art keywords
workpiece
pan
workpieces
centrifugal
finishing
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
US165423A
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English (en)
Inventor
Paul K A Cuppers
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.)
WMF Group GmbH
Original Assignee
WMF Group GmbH
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Filing date
Publication date
Priority claimed from DEP12496A external-priority patent/DE915309C/de
Application filed by WMF Group GmbH filed Critical WMF Group GmbH
Priority claimed from DEW11932A external-priority patent/DE965296C/de
Priority claimed from DEW5824A external-priority patent/DE1015714B/de
Application granted granted Critical
Publication of US2664676A publication Critical patent/US2664676A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B31/10—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 other means for tumbling of work
    • B24B31/104—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 other means for tumbling of work involving a rotating bowl, in which a ring zone of abrasive powder is formed by centrifugal force
    • 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
    • B24B31/003—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 whereby the workpieces are mounted on a holder and are immersed in the abrasive material
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/013—Preparation of halogenated hydrocarbons by addition of halogens
    • C07C17/02—Preparation of halogenated hydrocarbons by addition of halogens to unsaturated hydrocarbons

Definitions

  • This invention relates to improved means and a method for finishing the surface of workpieces as by grinding, polishing or the like, with the aid of tool means which are relatively moved past the surfaces of the workpieces which are to be treated.
  • a special object of the invention is to provide means for finishing the surface of workpieces extending in different planes or having intricate shapes, ornaments or the like.
  • a workpiece may be in the form of a spoon or other piece of cutlery, which is to be finished primarily in order to obtain a neatly ground and polished surface, but it is also contemplated to finish in accordance with the invention workpieces requiring accurate grinding, such as in case of round journals or the like.
  • the working tool serving for the finishing of workpiece surfaces is formed by a loose mass of a grinding, polishing or other working agent, preferably in a powderous, granular or pasty state, which mass isconfined in a vessel orpan at least partly surrounding it (hereinafter referred to as the tool vessel or tool pan), and kept under pressure during its relative movement along the workpiece surfaces.
  • a loose mass of a grinding, polishing or other working agent preferably in a powderous, granular or pasty state, which mass isconfined in a vessel orpan at least partly surrounding it (hereinafter referred to as the tool vessel or tool pan), and kept under pressure during its relative movement along the workpiece surfaces.
  • the loose working mass is kept under tool vessel preferably consists of a centrifugal 'vessel or pan mounted for rotation about its gal vessel this mass under action of the centrifus gal force forms a ring, on the freely accessible inner part of which the surfaces of the workpiece to be treated can be put in contact with the rotary working agent.
  • the workpiece in this case may be at least partly immersed in the inner annular zone of the rotary ring formed by the working mass; if desired, it may be additionally moved, turned or swivelled for working it on all sides.
  • the surfaces to be treated may be acted upon by the working mass more or less intensively and/or during longer or shorter periods of time.
  • the working pressure in this case may advantageously be regulated by suitable adjust-.
  • the centrifugal force determining the compression and so the quasi consistence or hardness of this grinding ring formed of the loose material is proportional to the mass of the material and to the square of the speed and inversely proportional to the radius of rotation.
  • the working pressure may moreover be varied by admixing to the working material substances Whose specific gravity differs from that of the working agent, such as, for instance, saw dust, cork powder or the like. These admixtures may be heavier or lighter than the working mass and may consist of abrasive or non-abrasive materials. Further details of this centrifugal type grinding device, more particularly the supporting and feeding of the workpiece and the swinging thereof during the working will be hereinafter explained in greater detail.
  • An apparatus designed and operated in accordance with the present invention permits a finishing treatment, more particularly the achieving of a grinding or polishing effect, which was not attainable by any of the known methods and apparatuses.
  • workpiece surfaces of any quality can be obtained up to a beautifully ground surface with a clear reflection at every point.
  • the grinding efiectfollowsexactly the existing contours so that defor- Y mations or disfigurements of the surface or ornaments being thus treated are safely avoided.
  • the surfaces disposed in different planes pass over into each other without any transition and without noticeable grinding lines. Even workpieces of an intricate shape can be worked by the novel method and apparatus according to the invention without any 1dimculties.
  • the grinding capacity is extremely increased and the time of working reduced, since the working material is able to act simultaneously on large sur faces of the workpiece.
  • the working and preferably also the feeding and removal of the workpieces are achieved by mechanical means so that human labor is saved. Moreover, a single device,
  • a centrifugal grinding device permits the simultaneous finishing of numerous workpieces.
  • Fig, l is .a vertical section of a centrifugal grinding apparatus according .to the invention.
  • Fig. 2 is .a horizontal section, on the .line 2-2 of Fig. 1, through the centrifugal vessel alone.
  • Fig. 3 is :a view similar to Fig. l, but showing on an enlarged scale the mechanism marked by the .circle Fig. 1 and taken on line 33 of Fi .4; and
  • Fig. 4 is a horizontal section on the line 4--4 of 'Fig. 3.
  • a particularly advantageous and practical form of the invention can be :obtained by providing the loose mass of the working material in the form of a mass ring produced by centrifugal force, for tight engagement of the workpiece surfaces with the inner ring zone of this mass ring which is moved past the workpiece surfaces.
  • embodiment of this preferred form ofzthe invention is shown in Figs. 1 to 4.
  • the tool vessel in this'case consists of a centrifugal tray or pan 52 provided at its circumference and bottom with rein-forcing ribs 53 and being open in its central upper part.
  • the upper pan edge '54 together with the side wall 55 thereof and the outer part of the preferably conically shaped pan bottom 53 forms an annular channel having a U-shaped cross section in which the working material H which in its state of rest lies on the bottom of the pan, is forced outwardly against the side wall of the pan under action of the centrifugal force caused by rotation of the pan.
  • the mass of the working agent I! thus forms a mass ring of a loose, granular, powderous or pasty grinding or polishing material, which, if desired, may be mixed with filling substances.
  • the centrifugal pan '52 is mounted for rotation on a vertical journal or pivot 58 by means of its hub 51, a slide bearing 59 being provided to form athrust or step bearing.
  • annular carrier #68 Secured on a foundation ring 6'. surrounding the centrifugal pan 52 with a suitable clearance is an annular carrier #68 with a hollow boxshaped cross section on which are secured at least one, but preferably several, bearing supports 69 extending radially towards the center axis of the apparatus.
  • the bearing supports 69 are advantageously downwardly recessed troughfashion and at their free ends carry bearing bodies 7G about the horizontal axis of which the swingable arms ll serving for chucking :the workpieces are rotatable in vertical radial planes.
  • the workpieces 72 for instance, spoons, are detachably secured to the heads 13 of the swing- .able arms.
  • the fastening is preferably effected with the aid of clamping blocks M, gripping the workpieces tong-fashion, the clamping block 15 being rotatable about a shaft 76 and provided with a 'lever arm ll against which presses an adjustable press bolt 18, whereby the jaws of the clamping block are pressed against the workpiece :2 clamped therebetween, as will be seen from Fig. 3.
  • the swingable arm “H is swung about the horizontal axis of the bearing body 16 through about 270 until it comes into its operative position, in which the clamping blocks 14, 15 dip the workpiece 12 mor or less deep into the inner freely exposed annular zone of the mass ring H.
  • the working material being kept under pressure by the centrifugal force is moved past the workpiece surfaces at a suitable adjustable speed.
  • the circumferential speed of the centrifugal pan 52 must at least reach an amount sufiicient to urge the grinding, polishing or other working material, lying on the bottom of the pan in the position of rest, onto the circumferenc of the pan, as indicated in the drawing.
  • the swingable arms Il may be swung manually, mechanically, electrically or hydraulically etc.
  • hydraulic pressure cylinders 19 are arranged at the sides of the bearing supports 69, pressure pipes 80 being provided for feeding a fluid (liquid, gas or air) to the cylinder from a source of such fluid under pressure (not shown).
  • slidable in the cylinder 19 has at the outwardly projecting end of its piston rod 82 a toothed rack 83 meshing with a pinion 84 secured to the rotatably mounted head 85 of the swingable arm H.
  • the workpiece may additionally be swung or turned while being in an operative position.
  • the head 13 of the swingable arm with the clamping blocks i4, i is mounted for rotation about its longitudinal axis by means of a shaft 8? rotatably mounted in a head casing 86.
  • the rotation of the shaft 8? may be achieved, for instance, from outside by an electromotor 88 rotating, through a driving shaft 89, a worm 9t and a worm wheel 9
  • the shaft 92 through bevel wheels 93, 9d drives one or, in case of pairs of swingable arms 1
  • each intermediate shaft 95 bears a worm 96 engaging a worm wheel 9i seated on the clamping head shaft 81.
  • the additional rotation of the workpiece 12 about the axis of shaft 81 can take place at a variable speed, so that the working material acts uponthe workpiece for a more or less extended period of time in the different angular positions of the workpiece.
  • This variable rotary motion may be controlled according to a predetermined program adapted to the respective workpiece. The surfaces of the workpiece are thus ground oif or worked partly more and partly less intensively without producing sharply defined transition lines.
  • the centrifuged working material is subject to minimum disturbance by still zones formed at the lee-side of the holders. It is also possible, however, to produce such still zones in the flow by suitable configuration of the design of the workpiece holders so as to expose certain zones of the surface to a reduced grinding effect.
  • a device for finishing the surfaces of workpieces comprising a pan mounted for rotation about its center axis and having therein a finishing mass of abrasive and like materials only partly filling said pan, means for rotating said pan at a speed at least sufficient to cause the formation, under action of the centrifugal force, of a mass ring in said pan, a swingable arm and a workpiece holder arranged at the free end of said arm and adapted to hold the workpiece, said arm being swingable in a plane extending substantially radially and parallelly to the centrifugal pan axis into a position where the workpiece holder is disposed freely accessible outside of the centrifugal pan, for chucking and removing the workpiece, and into a second position where the workpiece fastened to the workpiece holder is disposed in the inner annular zone of the mass ring.
  • a device for finishing the surfaces of workpieces comprising a pan mounted for rotation about its center axis and having therein a finishing mass of abrasive and like materials only partly filling said pan, means for rotating said pan at a speed at least sufiicient to cause the formation, under action of the centrifugal force, of a mass ring in said pan, a swingable arm and a workpiece holder rotatably mounted on the free end of said arm and adapted to hold the workpiece, said arm being swingable in a plane extending substantially radially and parallelly to the centrifugal pan axis into a position where the workpiece holder is disposed freely accessible out side of the centrifugal pan, for chucking and removing the workpiece, and into a second position where the workpiece fastened to the workpiece holder is disposed in the inner annular zone of the mass ring, the axis of rotation of the holder being disposed substantially perpendicularly to the swingable arm and, in the second position thereof, in a
  • a device for finishing the surfaces of workpieces comprising a pan mounted for rotation about its center axis and having therein a finishing of abrasive and like materials partly filling said pan, means for rotating said pan at a speed at least suificient to cause the formation, underaction of the centrifugal force, of a mass ring in said pan, a number of swingable arms nonrotatably arranged around the periphery of the rotatable pan, and workpiece holders arranged at the free end of said arms and adapted to hold the workpiece, said arms being swingable in planes extending substantially radially and parallel to the centrifugal pan axis into a position where the workpiece holders are disposed freely accessible outside of the centrifugal pan for chucking and removing the workpieces, and into a second position where the workpieces fastened este m rtq the workpiecehcldersare.disposed in theinner n u one of the irnass ring".
  • a device for iinishina. the; surf aces ofMworkpieces, comprising a pan mountedI-fortrotatibn aspeged at least sufiicient- .to ca se the.-formation, under action of the centrifugal iorce iofi a-mass ring said span anumber; ofiswzmgable arms :dis-
  • eachfiffiaid arms havingia workpiece holder rotatably mounted on theifree ,end ofsaid arm and; adapted .to-holda workpiece,
  • each of said arms being swingable in aplaneeiztending substantially radially, and. parallel. to the centrifugalaxis-of the pan intotatposition where h wp n e holderis disposed freely accessible outside .ofthe centrifugal pan for chucking and removing the workpiece, and into a secondposition; where the workpieceiastened to the ,workpiece holder is dispo ed inthe inner annular zone of the mass ring, the axis ofrotationof the workpi e h der vbeingdisposed Substantially ne, pendicularly to the .SWingable, armand, in the second position thereof, .in,.a 'd', .ection. substantially radially to thecentrifugal pan axis.
  • each of .said.arms andadapted to holdthe .workpieceieach, arm being swingable in. a plane extending substantially .parallelsto a plane extending radially. and parallel .to. the. centrifugal axis. of thepaninto. a position where @the workpiece holder is disposed freelyaccessible outi e; .1the .centrifuga1 pan ,for Jchucking'and .removing theiworkpiecei andinto agseconcl position where ,.-the workpieceifastenedito. the. workpiece holder is at vleast partly; immersed: in. the rotating mass, ring of; finishingmate'rial.
  • 6.1-A. deviceefor finishing the surfaces of 1 workpieces comprising a-..pan .mounted; for rotation about. its center axis. andhaving therein afinishns mas of abrasive; and like; materials partly filling; said; pan, ,means; for -rotat.ing-, said .pan at a speed at least sufficient. to. cause; the; formation,
  • a device forfinishing-the surfacesofworkpieces comprising a pan inounted for rotation aboutits central yertical ;-axis and being adapted to contain therein a fipishing ma as abr sive and like rnaterials only partly filling said pan,
  • A'device for'finishing the surfaces of workpieces comprising amber-g; container adapted to bepartly filled with abrasive and like materials havinga peripheral can concentric with the axis o'f" ';1 'otation, ans f'o'r revolving said container at a speed sufiicint to cause, under action of the centrifugal forc'e ⁇ the formation of amass ring ofthe said abrasive and like materials against said "peripheral walh workpiece holders stationa rily arranged around the periphery of the container, each wo riqo i'c'e holder being swingable in a plane extending-substantially vertically trend the peripheryt'o the middle zone of the container into a' "positio'ntwherethe workpiece holder is disposed freely accessible outside of the'container f o'r chucking and renioyinga workpiece, and me a second position
  • a device 'forfiinis h'ihg the surfaces of Workpieces comprising rotary container 'mounted for rotation about a verticarcentral axis and havingfitherein' a' finishing mass 'of abrasive and likernaterails only partly filling said container, for rotating said container at aspe a at least" oient fo 7 causeithe forrnation, under action of 'the' centrif galfforce, ofa 'mass ring of abrasive andflike rnaterials againstja peripheral wall" of the container concentric with 'the axis of rotation, atleast one swingable arrn and a workpiece holder rotata' bly rno unted onlthe free end oi s-aid arm and adapted to hold the workpiece, the axis of rotation of the holder be di po su s ntial p r ndi ar y to the swmgable arm, said a
  • a device for finishing the surfaces of workpieces comprising a container mounted for rotation about its vertical center axis and having therein a finishing mass of abrasive and like materials partly filling said container, means for rotating said container at a speed at least sufficient to cause the formation, under the action of the centrifugal force, of a mass ring in the container, the base of the said container having a frustro-conical inclined part adjacent its periphery, at least one swingable arm and a workpiece holder arranged at the free end of each arm and adapted to hold the workpiece, each arm being swingable in a plane extending substantially radially and parallel to the centrifugal container axis into a position where the workpiece holder is disposed freely accessible outside of the centrifugal container for chucking and removing th workpiece, and into a second position where the workpiece fastened to the workpiece holder is at least partly held in the path of movement of the abrasive material forming the mass ring.
  • a device for finishing the surfaces of workpieces comprising a container mounted for rotation about its center axis and having therein a finishing mass of abrasive and like materials partly filling said container, means for rotating said container at a speed at least sufficient to cause the formation, under action of the centrifugal force, of a mass ring in said container, at least one pair of swingable arms arranged side by side and workpiece holders arranged at the free ends of said arms and adapted to hold the workpieces, both arms of the pair being adapted to be rocked together in a plane extending substantially radially and parallel to the centrifugal container axis into a position where the workpiece holders are disposed freely accessible outside of the centrifugal container for chucking and removing the workpieces, and into a second position where the workpieces fastened to the workpiece holders are at least partly held in the path of movement of the abrasive and like materials forming the mass ring.
  • a device for finishing the surfaces of workpieces com-prising a container mounted for rotation about its center axis and having therein a finishing mass of abrasive and like materials only partly filling said container, means for rotating said container at a speed at least suflicient to cause the formation, under action of the centrifugal force, of a mass ring in the said container, at least one pair of swingable arms arranged side by side, and a workpiece holder rotatably mounted on the free end of each arm and adapted to hold the workpiece, the arm of each pair being swingable together in a plane extending substantially radially and parallel to the centrifugal container axis into a position where the workpiece holders are disposed freely accessible outside of the container for chucking and removing the workpieces, and into a second position where the workpieces fastened to the workpiece holders are at least partly immersed in the mass ring.
  • a device for finishing the surfaces of workpieces comprising a container mounted for rotation about its center axis and having therein a finishing mass of abrasive and like materials only partly filling said container, means for rotating said container at a speed at least sufficient to cause the formation, under action of the centrifugal force, of a mass rin in said container, at least two workpiece holders adapted to hold the workpieces, said workpiece holders being movable independently of one another into a position where each workpiece holder is disposed freely accessible outside of the centrifugal container, for chucking and removing the workpiece, and into a second position where the workpiece fastened to the workpiece holder is at least partly held in the path of movement of the mass ring.
  • a device for finishing the surfaces of workpieces comprising a pan mounted for rotation about its central vertical axis and havin therein a finishing mass of abrasive and like materials partly filling said pan, means for rotating said pan at a speed at least sufficient to cause the formation, under action of the centrifugal force, of a mass ring of finishing material in said pan, a plurality of swingable arms mounted on bearing supports arranged stationarily around the periphery of the pan, a workpiece holder arranged at the free end of each swingable arm and adapted to hold the workpiece, each of the said arms being swingable independently of one another on a stationary pivot pin mounted on the said bearing support in a plane extending substantially vertically from the periphery to the middle zone of the centrifugal pan into a position where the workpiece holder is disposed freely accessible outside of the centrifugal pan, for chucking and removing the workpiece, and into a second position where the workpiece fastened to the workpiece holder is disposed in the path of movement

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Lubricants (AREA)
  • Centrifugal Separators (AREA)
US165423A 1948-10-02 1950-06-01 Finishing of workpieces Expired - Lifetime US2664676A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEP12496A DE915309C (de) 1948-10-02 1948-10-02 Verfahren und Einrichtung zum Feinbearbeiten von Werkstueckoberflaechen
DEW11943A DE1015715B (de) 1948-10-02 1950-08-14 Einrichtung zum Feinbearbeiten wie Schleifen, Polieren od. dgl., von Werkstueckoberflaechen
DEW11932A DE965296C (de) 1950-08-14 1950-08-15 Verfahren und Einrichtung zum Feinbearbeiten von Werkstueckoberflaechen
DEW5824A DE1015714B (de) 1951-05-17 1951-05-17 Einrichtung zum Feinbearbeiten von Werkstuecken
DE744008X 1952-04-25

Publications (1)

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US2664676A true US2664676A (en) 1954-01-05

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US165423A Expired - Lifetime US2664676A (en) 1948-10-02 1950-06-01 Finishing of workpieces

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US (1) US2664676A (fr)
BE (1) BE519305A (fr)
CH (1) CH324127A (fr)
FR (4) FR1028777A (fr)
GB (3) GB678058A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756550A (en) * 1952-08-26 1956-07-31 Wmf Wuerttemberg Metallwaren Holders for workpieces
US2827740A (en) * 1956-02-29 1958-03-25 Luther E Lee Polishing treatment for article surfaces
US2854796A (en) * 1955-06-13 1958-10-07 Radio Kemetal Ind Inc Apparatus for making capacitors
US2897633A (en) * 1956-02-11 1959-08-04 Buhr Erich Polishing apparatus
US2899777A (en) * 1957-01-24 1959-08-18 Method
US3128577A (en) * 1963-03-05 1964-04-14 Boeing Co Method for deburring components of considerable length
US3187473A (en) * 1959-11-16 1965-06-08 Prab Conveyors Method of surface finishing articles
US3230669A (en) * 1963-03-05 1966-01-25 Boeing Co Deburring apparatus
US3599374A (en) * 1969-09-15 1971-08-17 Ultramatic Equipment Co Rotary-finishing machine
US4173851A (en) * 1977-01-29 1979-11-13 Yasunaga Higashi Barrel polishing process
US4549370A (en) * 1982-01-18 1985-10-29 Centralen Mashinostroitelen Institute Machine for finishing complex profiled workpieces
JPS62181868A (ja) * 1986-02-04 1987-08-10 Tokyo Kenkyusho:Kk 研磨装置
US20160016277A1 (en) * 2013-04-09 2016-01-21 Otec Präzisionsfinish GmbH Method and device for the surface finishing of workpieces
RU2755328C1 (ru) * 2020-12-30 2021-09-15 Федеральное государственное бюджетное образовательное учреждение высшего образования «Пензенский государственный университет» Способ и устройство для центробежно-шпиндельной обработки поверхностей изделий

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891357A (en) * 1956-02-08 1959-06-23 Davidson Leo Richard Apparatus for polishing work pieces
DE1208602B (de) * 1958-05-20 1966-01-05 Wieland Werke Ag Verfahren zum Herstellen von Ein- oder Vielkanalblechen oder -baendern

Citations (9)

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US464584A (en) * 1891-12-08 Signors of one-third to walter p
US801403A (en) * 1904-11-28 1905-10-10 Gen Electric Scouring-machine.
US1178827A (en) * 1915-05-21 1916-04-11 Herbert W Spellman Apparatus for polishing metal bodies.
GB119823A (en) * 1918-04-09 1918-10-17 Hubert Cornelis Ghijsen Improvements in Machines for Polishing Metal Articles.
US2218353A (en) * 1939-05-22 1940-10-15 Gear Grinding Mach Co Method and machine for polishing articles
US2419687A (en) * 1945-11-24 1947-04-29 Hamilton Watch Co Method of oliving jewels
US2425640A (en) * 1945-04-23 1947-08-12 Steel Products Eng Co Surface finishing
US2480238A (en) * 1946-11-08 1949-08-30 Standard Steel Spring Co Polishing apparatus
US2494733A (en) * 1946-03-15 1950-01-17 Wolverhampton Die Casting Comp Process for polishing articles and a device for use therein

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US464584A (en) * 1891-12-08 Signors of one-third to walter p
US801403A (en) * 1904-11-28 1905-10-10 Gen Electric Scouring-machine.
US1178827A (en) * 1915-05-21 1916-04-11 Herbert W Spellman Apparatus for polishing metal bodies.
GB119823A (en) * 1918-04-09 1918-10-17 Hubert Cornelis Ghijsen Improvements in Machines for Polishing Metal Articles.
US2218353A (en) * 1939-05-22 1940-10-15 Gear Grinding Mach Co Method and machine for polishing articles
US2425640A (en) * 1945-04-23 1947-08-12 Steel Products Eng Co Surface finishing
US2419687A (en) * 1945-11-24 1947-04-29 Hamilton Watch Co Method of oliving jewels
US2494733A (en) * 1946-03-15 1950-01-17 Wolverhampton Die Casting Comp Process for polishing articles and a device for use therein
US2480238A (en) * 1946-11-08 1949-08-30 Standard Steel Spring Co Polishing apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756550A (en) * 1952-08-26 1956-07-31 Wmf Wuerttemberg Metallwaren Holders for workpieces
US2854796A (en) * 1955-06-13 1958-10-07 Radio Kemetal Ind Inc Apparatus for making capacitors
US2897633A (en) * 1956-02-11 1959-08-04 Buhr Erich Polishing apparatus
US2827740A (en) * 1956-02-29 1958-03-25 Luther E Lee Polishing treatment for article surfaces
US2899777A (en) * 1957-01-24 1959-08-18 Method
US3187473A (en) * 1959-11-16 1965-06-08 Prab Conveyors Method of surface finishing articles
US3128577A (en) * 1963-03-05 1964-04-14 Boeing Co Method for deburring components of considerable length
US3230669A (en) * 1963-03-05 1966-01-25 Boeing Co Deburring apparatus
US3599374A (en) * 1969-09-15 1971-08-17 Ultramatic Equipment Co Rotary-finishing machine
US4173851A (en) * 1977-01-29 1979-11-13 Yasunaga Higashi Barrel polishing process
US4549370A (en) * 1982-01-18 1985-10-29 Centralen Mashinostroitelen Institute Machine for finishing complex profiled workpieces
JPS62181868A (ja) * 1986-02-04 1987-08-10 Tokyo Kenkyusho:Kk 研磨装置
US20160016277A1 (en) * 2013-04-09 2016-01-21 Otec Präzisionsfinish GmbH Method and device for the surface finishing of workpieces
US10357866B2 (en) * 2013-04-09 2019-07-23 Otec Präzisionsfinish GmbH Method and device for the surface finishing of workpieces
RU2755328C1 (ru) * 2020-12-30 2021-09-15 Федеральное государственное бюджетное образовательное учреждение высшего образования «Пензенский государственный университет» Способ и устройство для центробежно-шпиндельной обработки поверхностей изделий

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Publication number Publication date
FR64514E (fr) 1955-11-14
CH324127A (de) 1957-08-31
FR1628777A (fr)
FR65402E (fr) 1956-02-20
BE519305A (fr)
GB744008A (en) 1956-01-25
GB678058A (en) 1952-08-27
GB760218A (en) 1956-10-31
FR1028777A (fr) 1953-05-27

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