US3376672A - Abrading machine with a plurality of abrasive wheels - Google Patents

Abrading machine with a plurality of abrasive wheels Download PDF

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Publication number
US3376672A
US3376672A US431331A US43133165A US3376672A US 3376672 A US3376672 A US 3376672A US 431331 A US431331 A US 431331A US 43133165 A US43133165 A US 43133165A US 3376672 A US3376672 A US 3376672A
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Prior art keywords
wheels
workpiece
wheel
contact
machine
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US431331A
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English (en)
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Schmidt Erich
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FA MASCHINENFABRIK ZUCKERMANN KOM GES WIEN
ZUCKERMANN KOM GES WIEN FA MAS
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ZUCKERMANN KOM GES WIEN FA MAS
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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
    • B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
    • B24B17/02—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]

Definitions

  • the invention relates to a grinding machine having a plurality of abrasive wheels successively abrading a workpiece.
  • a machine for grinding the surface of an elongate workpiece having sharp edges disposed transversely of its longitudinal direction comprising first and second abrasive wheels, means for effecting relative linear movement between the wheels and workpiece along the length thereof, means for rotating the wheels in a common plane containing the line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second grinding wheels are respectively with and against the movement of said workpiece relative to said wheels, and actuating means for ensuring that the first wheel contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and for ensuring that said second wheel does not contact or engage the leading edge but does contact the trailing edge during grinding of said workpiece whereby the transverse edges are maintained sharp.
  • the actuating means includes a cam drive arrangement for controlling movement of said wheels into and out of contact with said workpiece.
  • each pair being driven in identical manner and each pair being adapted to abrade a predetermined proportion only of the surface of the workpiece.
  • the pairs of wheels may be axially spaced along the line of said relative linear movement, the pairs of abrasive wheels being displaced angularly with respect to one another.
  • the machine may be provided with an endless belt on which the workpieces may be supported for linear movement past the pair(s) of wheels.
  • the arrangement is such that the pairs of grinding wheels can be adjusted to different positions around the circumference of the workpiece, and then fixed in the desired position, to the effect that in a single operation, each pair of wheels abrades a separate longitudinal strip on the workpiece, which can have any desired transverse or longitudinal cross-section.
  • each abrasive wheel is, according to the invention, slidably mounted on a supporting arm independently of the support carrying the driving motor, in such fashion that the wheel can move relatively to the surface of the workpiece.
  • the abrasive wheel is connected to the motor in such fashion that it can move relatively to the motor and to the structure supporting the motor.
  • the abrasive wheel can be driven by a flexible shaft.
  • FIGURE 1 is a side-elevational view which shows diagrammatically the main characteristics of a machine according to the present invention
  • FIGURE 2 is an end elevation of part of the machine of FIGURE 1,
  • FIGURE 3 is a side elevation of part of the device shown in FIGURE 2,
  • FIGURE 4 is a part sectional end elevation through part of the machine of FIGURE 1,
  • FIGURE 5 shows a machining arrangement suitable for preparing the cams used in the machine according to the present invention
  • FIGURE 6 represents a system using two machines according to the present invention.
  • FIGURE 7 represents the process of grinding employed in the machine according to the present invention.
  • Each device comprises two independently controllable grinding wheels 6 and 7, 8 and 9, 10 and 11, 12 and 13, 14 and 15, each consisting of a hub and a number of leaves of abrasive paper projecting radially and supported by bundles of bristles.
  • the wheels may, alternatively consist of a foam-rubber wheel on which is mounted a strip of abrasive paper.
  • the abrading devices 1 to 5 are identical. Device 1 is shown in more detail in FIGURES 2 and 3. Device 1 comprises wheels 6 and 7 rotatably mounted on arms 22 (only wheel 6 and its corresponding arm 22 is shown in FIGURES 2 and 3). Arms 22 are slidably mounted on frame members 24 (only one shown) by guides 24a of which there are two for each arm 22.
  • Devices 22a are provided for biasing the arms 22 downwardly. These operate under pneumatic pressure or are constituted by compression springs and serve to push the arms 22 with their abrasive wheels constantly against the workpieces.
  • the drive for the wheels are so arranged that the abrasive wheel 6 is driven counter clockwise (as seen in FIGS. 1 and 7), while the grinding wheel 7 is driven clockwise.
  • the frames 24 for wheels 6 and 7 are mounted adjustably on a supporting arm 21.
  • the supporting arm 21 is rather more than semi-circular (FIG. 2) and is aligned and vgenerally coaxial with a conveyor 17 for the workpieces to be described hereinafter.
  • On each side of the supporting arm 21 there is a dove-tail guide 21a so arranged that the frames 24 can be adjusted to any position around the supporting arm 21, and can then be fixed in place by means of clamps of known kind, or eccentric levers, which are mounted pivotably in the frames 24 and clamp tight against the surface of the supporting arm 21.
  • arm 21 supports two frames 24-, one on each side.
  • FIGURE 2 shows how the grinding devices 1 to 5 are in different angular positions, i.e. angularly offset relative to the circumference of a workpiece 16, so that each pair of abrasive wheels 6 and 7, 8 and 9, 10 and 11, 12 and 13 and 14 and 15 abrades its own longitudinal strip on the workpiece 16.
  • the device 1 is vertical
  • device 2 is inclined to the vertical at an angle of 15
  • device 3 is at an angle of 45
  • the device 4 is at an angle of 90
  • the device '5 is at an angle of 65 n the other side of the vertical, each abrading assembly being offset relative to the others around the circular supporting arms 21 which are spaced axially along the line of movement taken by workpieces 16.
  • the grinding devices 1 to grind substantially one half of the circumferential surface of the workpiece.
  • the number of grinding devices can, of course, be as great as desired, whereby they can grind most of the circumferential surface of the workpiece or even the entire surface.
  • Each of the two wheels of each abrading device for example, of the grinding device 1 is controlled as to its position by a cam control including a cam 26, the cam control acting against the biasof the compression spring (or pneumatic device) 22a.
  • each of the arms 22, which supports the grinding wheels 6 to is connected through a Bowden drive 27 (FIGS. 1 and 4) to one end of a pivoted cam follower lever 28.
  • the sheath 29 of the Bowden cable is connected at one end to a reaction bush 30, which is mounted on the 'motor 25, and at the other end to a common supporting strap 31.
  • the pivoted cam follower levers 28 are all mounted on a common pivot axis 32.
  • each lever 22 At one end of each lever is mounted a cam follower roller 33, which follows the edge of the respective cam 26 under the influence of the spring 22a.
  • each arm 22 has its own cam 26 (FIG. 1), whose shape corresponds to the surface contour of the relevant strip of the workpiece being ground by the wheel attached to the respective arm. In this way the workpiece 16 is ground by the grinding wheels in predetermined strips, the shapes of which are precisely determined by the movement of the grinding wheels relative to the work-piece.
  • the cams 26 are all mounted on a common cylinder 34 (FIGURE 4) and are locked in place, in the correct rotational relationship to each other, by two flanges 35, 36. Together, the cams are mounted as a complete assembly on a shaft 37 in such a way that it cannot rotate relative to the shaft and is also secured against axial movement.
  • the complete set of cams, constituting a program controller, can be exchanged for a different one, as required.
  • the conveyor 17 passes over drum 42 at one end and over a further drum 48 at the other end.
  • the workpieces 16 are firmly mounted on the conveyor 17.
  • Each workpiece rests on a support which is adjustable in height and is situated between two clamps 18, 19, one of which is fixed while the other is spring-biased. After the workpiece has been placed in contact with the adjustable support 20, the clamps 18 and 19 grip the workpiece at its ends.
  • Each workpiece is positioned with its longitudinal axis in the direction of movement of the conveyor. All the workpieces are at the same height.
  • Each workpiece remains firmly clamped to the conveyor all through the grinding operation, and does not change its position relative to the conveyor.
  • the grinding devices are angularly displaced relatively to each other in planes at right angles to the direction of movement of the workpieces.
  • the grinding wheels process the surface of the workpiece through an angle of 1
  • Wheel 6 is effective along the broken line 6a
  • the grinding wheel 7 grinds along the broken line 7a.
  • the grinding wheel 6 grinds the end 16a of the workpiece but lifts away from the surface before reaching the other end 16b.
  • each grinding wheel grinds one end only of the workpiece.
  • the operative surface of wheel 6 i.e. the lower portion thereof which contacts the workpiece
  • wheel 7 grinds the leading edge thereof whereby the grinding wheels form sharp edges at each end of the workpiece.
  • the movement of the wheels 6 and 7 is controlled by their respective earns 26, the relative positions of these being determined before they are clamped in placeon the shaft 37.
  • the cams 26 all have characteristic shapes, these being determined by the predetermined profile which it is desired to impart to the workpieces 16.
  • One process for making these cams is shown in FIGURE 5.
  • the arrangement comprises a conveyor belt 54 guided over two rollers 52, 53.
  • a model 51 is secured to the conveyor belt by means of two clamp pieces 55 and 56, which hold it at its ends.
  • a blank 26 for the cam is mounted tight on a shaft 57 of roller 52, in such fashion that the speed of rotation of the blank 26' is the same as that of the drum 52.
  • the surface of the model 51 is followed by a copying roller 60 which is mounted on a slider 59 and pushed against this surface of the model by a spring 58.
  • the position of the model in the clamps 55 and 56 is such that the copying roller 60 travels along that part of the surface for which the cam 26 is intended.
  • the slider 59 can slide up and down in guides 61, and the model 51 can be adjusted by rotating about its longitudinal axis so as to bring the copying roller 60 to the desired strip on the surface of the model.
  • the other end of the slider 59 is attached to a cable 62 of a Bowden drive whose flexible sheath 63 is attached at one end to the guide frame of the slider, and at its other end to a reaction bush 64.
  • the other end of the cable 62 is attached to a shorter arm of a double arm lever 65, which is mounted on a shaft 66 of a drive motor 67, but so that it can pivot freely on the shaft.
  • this lever 65 At the end of the longer arm of this lever 65 is mounted a milling wheel 66, which is driven by the motor 67 through a power train 68, 69, 70.
  • This lever 65 pushes the milling wheel 66 against the circumference of the blank 26' according to the control provided by the copying roller 60 acting on the model 51.
  • the movement of the copying roller 60 along the surface of the model 51 at the same 1 speed causes the longitudinal profile of the particular.
  • FIGURE 6 shows how two grinding lines A and B can be arranged next to each other and operated from a single control station C.
  • the raw blanks are taken from a storage hopper D and attached to the conveyor for the first grinding line A.
  • the workpieces are returned to the front of the system by the conveyor belt 50 and then fed to the second grinding line B by the operator. Passing along the grinding line B the workpieces are given a second surfacestrip treatment, and then pass out of the system.
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal dimension said machine comprising first and second abrasive wheels, means for effecting relative linear movement between the wheels and said workpiece along the length thereof, means for rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and a cam-drive arrangement controlling movement of said wheels into and out of contact with said workpiece, said cam-drive arrangement ensuring that the first wheel contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and for ensuring that said second wheel does not contact said leading edge but does contact said trailing edge during abrading of said workpiece whereby the transverse edges are maintained sharp.
  • a machine for abrading the surface of an elongated workpiece which is contoured in its longitudinal direction and which has sharp edges disposed transversely of its longitudinal dimension
  • said machine comprising first and second abrasive wheels, means for effecting relative linear movement between the wheels and said workpiece along the length thereof, means for rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and a cam-drive arrangement controlling movement of said wheels into and out of contact with said workpiece, said cam-drive arrangement controlling movements of said wheels corresponding to the contour required on said workpiece and ensuring that the first wheel contacts the leading trans verse edge of the workpiece but does not contact the 6 trailing edge thereof and for ensuring that said second wheel does not contact said leading edge but does contact said trailing edge during abrading of said workpiece whereby the transverse edges are maintained sharp.
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal dimension comprising first and second abrasive wheels, means for effecting relative linear movement between the wheels and workpiece along the length thereof, a frame member, a pair of arms slidably mounted on said frame member for movement at right angles to said linear movement, means rotatably mounting said first and second abrasive wheels on the respective arms, means for rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and actuating means for ensuring that the first wheel contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and for ensuring that said second wheel does not contact said leading edge but does contact said trailing edge during abrading of said workpiece whereby the transverse edges are maintained sharp.
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal dimension comprising first and second abrasive wheels biased towards said workpiece, means for effecting relative linear movement between the wheels and workpiece along the length thereof, means for rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and a cam-drive arrangement for controlling movement of said wheels into and out of contact with said workpiece and including a control connection 'between each said wheel and a respective control cam acting against the bias of said wheels in controlling the positions of said wheels, and ensuring that the first wheel contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and for ensuring that said second wheel does not contact said leading edge but does contact said trailing edge during abrading of said workpiece whereby the transverse edges are maintained sharp.
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal dimension said machine comprising first and second abrasive wheels biased towards said workpiece, means for effecting relative linear movement between the wheels and said workpiece along the length thereof, means for rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and a cam-drive arrangement for controlling movement of said wheels into and out of contact with said workpiece, said cam-drive arrangement including a Bowden-cable drive for each wheel continuously tensioned by the bias of said wheels toward said workpiece, and respective cams controlling each Bowden-cable drive and so constructed and arranged that the first wheel contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof, and that said second wheel does not contact said leading edge but does contact said trailing edge during abrading of said workpiece whereby the trans
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal dimension said machine comprising first and second abrasive wheels biased towards said workpiece, means for elfecting relative linear movement hetween the wheels and workpiece along the length thereof, a frame member, a respective arm assigned to each of said wheels and slidably mounted on said frame member for movement at right angles to said relative linear movement, means rotatably mounting said first and second abrasive wheels on said arms, means for rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and a cam-drive arrangement for controlling movement of said wheels into and out of contact with said workpiece, said cam-drive arrangement comprising a respec tive cam assigned to each wheel, a respective pivoted lever forming at one end a cam follower riding against the respective cam,
  • a machine as defined in claim 6, further comprising a respective roller mounted on said one end of each pivoted lever and resting on the periphery of said cam, the roller being urged into contact with the cam by the bias of the respective wheel.
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal direction comprising first and second abrasive wheels, means for effecting relative linear movement between the wheels and workpiece along the length thereof, a respective frame member assigned to each wheel, an arm slidably mounted on each frame member for movement at right angles to said relative linear movement, means mounting a respective one of said wheels on each of said arms, a respective compression spring disposed between each arm and the respective frame member to bias the respective wheel against said workpiece, means for rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said work piece relative to said wheels, and actuating means for ensuring that the first wheel contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and for ensuring that said second wheel does not contact said leading edge but does contact said trailing edge during abrading of said workpiece where
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal direction comprising first and second abrasive wheels, means of effecting relative linear movement between the wheels and workpiece along the length thereof, a frame member assigned to each wheel, arms slidably mounted on said frame member for movement at right angles to said relative linear movement, means mounting each of said wheels on a respective one of said arms, a motor for each wheel mounted on said frame member, a flexible drive extending from the motor to the respective wheel, the motors rotating the wheels in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and actuating means for ensuring that the first wheel contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and for ensuring that said second wheel does not contact said leading edge but does contact said trailing edge during abrading of said workpiece where
  • a machine for abrading the surface of an elongate workpiece having sharp edges disposed transversely of its longitudinal direction comprising a plurality of pairs of abrasive wheels, each pair comprising first and second abrasive wheels adapted to abrade a predetermined portion only of the surface of the work-t piece, means for effecting relative linear movement between the wheels and workpiece along the length thereof,
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal direction comprising a plurality of pairs of abrasive wheels, each pair comprising first and second grinding wheels, means for effecting relative linear movement between the wheels and workpiece along the length thereof, said pairs of abrasive wheels being axially spaced apart in said direction and being disposed angularly with respect to one another whereby each pair of wheels is adapted to abrade a predetermined limited portion only of the surface of said workpiece, means for rotating the wheels of each pair in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of each pair of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and actuating means for ensuring that the first wheel of each pair contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and for ensuring that said second wheel of each pair does not contact said leading edge but does contact
  • a machine for abrading the surface of an elongated workpiece having sharp edges, disposed transversely of its longitudinal direction said machine comprising a plurality of pairs of abrasive wheels, each pair comprising first and second abrasive wheels, means for effecting relative linear movement between the wheels and workpiece along the length thereof, a respective frame member for the wheels of each pair, a respective arm assigned to each wheel of a respective pair slidably mounted on each said frame member for movement at right angles to said relative linear movement, means rotatably mounting a respective wheel on each arm, a plurality of arcuate supports axially spaced apart along the line of said relative linear movement, said frame members being clamped to said arcuate supports such that the frame members are offset angularly with respect to one another and each pair of wheels can abrade a predetermined portion only of the surface of said workpiece, means for rotating the wheels of each pair in a common plane containing a line second abrasive wheels of each pair are respectively with and against the movement of said workpiece
  • a machine for abrading the surface of an elongated workpiece having sharp edges disposed transversely of its longitudinal direction comprising a plurality of pairs of abrasive wheels, each pair comprising first and second abrasive wheels, means for effecting relative linear movement between the wheels and workpiece along the length thereof, means for rotating the wheels of each pair in a common plane containing a line of said linear movement and in opposite senses whereby the movements of the operative surfaces of said first and second abrasive wheels are respectively with and against the movement of said workpiece relative to said wheels, and a cam-drive arrangement for controlling movement of said wheels into and out of contact with said workpiece, said arrangement comprising a separate cam for each wheel, a common shaft supporting all of said cams and a drive for said shaft to rotate said cam in common, said cam-drive arrangement being so constructed and arranged that the first wheel of each pair contacts the leading transverse edge of the workpiece but does not contact the trailing edge thereof and that said second wheel of each pair does not contact said leading edge but does

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
US431331A 1964-02-14 1965-02-09 Abrading machine with a plurality of abrasive wheels Expired - Lifetime US3376672A (en)

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Application Number Priority Date Filing Date Title
AT126664A AT244795B (de) 1964-02-14 1964-02-14 Maschine zum Schleifen von hölzernen Formteilen

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US3376672A true US3376672A (en) 1968-04-09

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GB (1) GB1092218A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942288A (en) * 1972-06-27 1976-03-09 Maschinenfabrik Zuckermann Komm.Ges. System for shaping and finishing wood chair seats
US4031668A (en) * 1974-02-19 1977-06-28 Hitchcock Chair Company Sanding machine for anatomically contoured wooden chair seats and the like
US4749182A (en) * 1987-03-30 1988-06-07 Duggan William V Variable resistance aerobic exercise machine
US20050208877A1 (en) * 2004-03-16 2005-09-22 Norbert Bailer Apparatus for machining workpieces, in particular workpieces provided with cutting teeth
US20070099546A1 (en) * 2003-12-10 2007-05-03 Poul Erik Jespersen Grinding apparatus for treatment of a surface
US20110003539A1 (en) * 2007-12-04 2011-01-06 Flex Trim A/S Apparatus for double-sided grinding
CN117140686A (zh) * 2023-08-21 2023-12-01 成都工业学院 一种泡沫陶瓷制备设备及方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT310026B (de) * 1972-03-10 1973-09-10 Zuckermann Komm Ges Wien Masch Kopierschleifmaschine für Formteile aus Holz oder Kunststoff mit unregelmäßiger Körperform
JPS5029393U (de) * 1973-07-11 1975-04-03
CN108908010B (zh) * 2018-06-30 2020-04-10 黄少邱 一种大型实木家具表面打磨作业全自动机器人
CN114392929B (zh) * 2022-03-28 2022-07-05 浙江海格威液压科技有限公司 一种液压管接头外螺纹检测装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1006881A (en) * 1911-03-10 1911-10-24 George Russell Treating sheet metal.
US1042817A (en) * 1910-03-25 1912-10-29 Henry Walters Newman Grinding or abrading machine.
US2107184A (en) * 1934-12-13 1938-02-01 Remington Rand Inc Bowden wire
US2948086A (en) * 1957-05-03 1960-08-09 Western Electric Co Selectively operable work holders for buffing machines
US3274736A (en) * 1964-03-20 1966-09-27 Sun Tool & Machine Co Edge tooling apparatus
US3295261A (en) * 1964-06-03 1967-01-03 Ernest E Murray Work wheel mechanism and associated apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1042817A (en) * 1910-03-25 1912-10-29 Henry Walters Newman Grinding or abrading machine.
US1006881A (en) * 1911-03-10 1911-10-24 George Russell Treating sheet metal.
US2107184A (en) * 1934-12-13 1938-02-01 Remington Rand Inc Bowden wire
US2948086A (en) * 1957-05-03 1960-08-09 Western Electric Co Selectively operable work holders for buffing machines
US3274736A (en) * 1964-03-20 1966-09-27 Sun Tool & Machine Co Edge tooling apparatus
US3295261A (en) * 1964-06-03 1967-01-03 Ernest E Murray Work wheel mechanism and associated apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942288A (en) * 1972-06-27 1976-03-09 Maschinenfabrik Zuckermann Komm.Ges. System for shaping and finishing wood chair seats
US4031668A (en) * 1974-02-19 1977-06-28 Hitchcock Chair Company Sanding machine for anatomically contoured wooden chair seats and the like
US4749182A (en) * 1987-03-30 1988-06-07 Duggan William V Variable resistance aerobic exercise machine
US20070099546A1 (en) * 2003-12-10 2007-05-03 Poul Erik Jespersen Grinding apparatus for treatment of a surface
US20050208877A1 (en) * 2004-03-16 2005-09-22 Norbert Bailer Apparatus for machining workpieces, in particular workpieces provided with cutting teeth
US7207865B2 (en) * 2004-03-16 2007-04-24 Vollmer Werke Maschinenfabrik Gmbh Apparatus for machining workpieces, in particular workpieces provided with cutting teeth
US20110003539A1 (en) * 2007-12-04 2011-01-06 Flex Trim A/S Apparatus for double-sided grinding
CN117140686A (zh) * 2023-08-21 2023-12-01 成都工业学院 一种泡沫陶瓷制备设备及方法
CN117140686B (zh) * 2023-08-21 2024-05-14 成都工业学院 一种泡沫陶瓷制备设备及方法

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GB1092218A (en) 1967-11-22
AT244795B (de) 1966-01-25

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