US1326091A - Portable electric grinding and polishing lathe - Google Patents

Portable electric grinding and polishing lathe Download PDF

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US1326091A
US1326091A US1326091DA US1326091A US 1326091 A US1326091 A US 1326091A US 1326091D A US1326091D A US 1326091DA US 1326091 A US1326091 A US 1326091A
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machine
motor
grinding
shaft
yoke
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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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S451/00—Abrading
    • Y10S451/902—Brake abrading

Definitions

  • a further object of the Invention is to provide a portable machine adapted to be a plied to inner and outer curved surfaces of crank pins, cylinders and the like for truing the same by rotating suitable implements during the revolution of the machine either upon the inside or. outside of the art1 cle or device, against which such implements are operated.
  • a still further object of the invention is to provide a portable motor machine having planetary motion, and comprising novel and peculiar means or devices of simple character for applying the machine to various curved surfaces for grinding, truing and polishing such surfaces.
  • Figure 1 is an end view showing the application of the invention to a crank shaft pln
  • Fig. 2 is a side elevation showing the same application.
  • Fi 3 is a longitudinal sectional view showing the application of the machine 1 Without t motor! my machine
  • Fig. 4 is a detail sectional view taken on the line 4-4 Fig. 3.
  • Fig. 5 is a detail perspective view of the coupling oke.
  • Fig. 6 1s a detail perspective view of the coupling member having flanges for sus pending a counterbalance and'for mounting a motor.
  • Fig. 7 is a sectional view showing the application of the machine to a cylinder.
  • Fig. 8 is a sectional view of automobile cylinders showing the application of this invention thereto.
  • a mounting or foundation member 6, havmg a central longitudinal bore 7 for the rod '1 is secured against the face of the pin 3 by the nut 5
  • the mounting 6 has a key-way 8 for a key 9 on the inner periphery of a gear wheel 10 slidable lengthwise on the member 6, and said wheel is provided with flanges forming anannularly grooved hub 11, for a pair of prongs 12 of a coupling yoke 13.
  • the head 18 of the "yoke is slidable over the square thread of stud is held in raised position.
  • the stud 19 works through and is controlled by a spiral spring 20 having one end abuttin against the upper wall 21 of a pocket 22 1n the yoke head, and the other end Works against the enlarged end or flange 23 of the stud which has head grooves 24 for meshing with ribs 25'on the yoke head 18.
  • the function of the spring is to keep the stud in mesh with the square thread of the rod 1, until the stud is lifted by pulling it out of mesh and turning it so that the stud grooves will engage the ribs 25 crosswise, whereby the Obviously by turning the stud so that the grooves and rlbs will mesh, the spring 20 pulls the stud into mesh with the rod screw.
  • the base of the motor 26 is bolted to the V naled in bearings 32 of the sleeve 14' and having a worm 33 meshing with the ear wheel 10, for revolving the whole mac ine on'the fixed shaft or rod 1, during rotary movement of'a grinding, or polishing wheel by the motor, andduring longitudinal move ment of the whole machine when the stud 19 -1s in mesh. with the square thread of the rod or shaft 1., r
  • the motor is supplied with'elect'ric current by wires 34 attached thereto and carried by the yoke 13, and by a pair of split -,colleeto .rings 35 loosely clamped to an annular'fiange 36 of the yoke head 18.
  • I attach an arm 1 to a flange '16 projecting from the sleeve 14, and provide said arm with a weight 3* adjustable thereon. Obviously this arm may be shorter and the weight heavien. if necessary to permit the operation of the machine with respect to certain devices or work, especially with respect-to cylinders wherein the machine is operated. It will be observedthat the rod or shaft 1, is used for. anchoring or attachmg and centralizing the machine with respect to the article to be ground, and also afi'ords means for feeding the machine transversely during its revolution, and during rotary movement of the motor which revolves and feeds the machine. 7 7
  • FIG. 7 the machine is shown as applied to a steam engine cylinder 37 i for n rinding and polishing the inner periphery filereof, and in order to make such application, I secure the ends of a spanner 38 to oneend of the cylinder, and provide the spider head 39 with a tubular extension 40 through which the shaft 41 extends and by means of which said shaft is centralized relative to the cylinder 31.
  • The'projecting ends of the shaft 41 may be journaled in suit-- able supports, and the whole machine, as hereinbefore described, may be operated within this cylinder for grinding, and polishin the inner Wall thereof.
  • the same machine in its entirety may be applied to automobile head cylinders 42 by means of a frame 43 adapted to bebolted tothe face of the c linders, and mounting the motor 44 on the rame 43 so as to be shifted from one to another of the cylinders for grinding and truing them.
  • a lengthened or longer motor shaft 45 for this application of the machine, and adequate .space is provided between the face of the cylinders and the frame 43 to permit the grinding wheel to be slid, in said shifting of the machine, from one cylinder to another without removin the' motor or its shaft until all the cylinders are ground, whereupon the frame 43 is readily detached and removed.
  • the. compactness of the machine is of great advantage in transportation and application either for outside or inside grinding and polishing.
  • the machine is self feeding lengthwise during simultaneous revolution thereof, and of the grinding wheel at a greater velocity than therevolution of the machine, and the machine is not limited in its applications as herein shown and described, but may be used for grinding and truing rocker arm pins of the well known Corliss engines, cross head pins of various engines, valves, and valve bonnets. Therefore I do not wish to be understood as limiting myself in these respects, nor to any particular material and size in the manufacture and practical application of the invention, nor to any particular vertical feed for motor or any particular reducing gearing, but reserve the right to make such changes and variations therein and in the. combination of the various parts of the machine as may not be inconsistent with the appended claims.
  • a foundation member anon-revoluble screw shaft. upon which said member is loosely mounted, said shaft adapted to be attached to the article to be ground,
  • a foundation member a fixed shaft upon which said member is mounted and having a feed. screw, a gear wheel slidably keyed on said member, a yoke having a head revoluble on said shaft and engaging the wheel hub, a stud adjustable in the yoke head for meshing with said screw, a sleeve" on the foundatlon member and attachedrto the yoke, a motor mounted on the sleeve and geared with said wheel for revolving the foundation m ember, the sleeve rotated by the motor during the revolution y -1 of the foundation member and'during trans- 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Description

E. PORTER. V PORTABLE ELECTRIC GRINDING AND POLISHING LATHE. APPLICATION FILED JUNE 20/1919.
1 ,326,091 I Patented Dec. 23,1919.
3 SHEETS5HEET I.
E. PORTER. PORTABLE ELECTRIC GRINDING AND POLISHING LATHE.
APPLICATION FILED JUNE 20. 1919.
1,326;,091 Patented Dec. 23,1919.
3 SHEETS-SHEET 2.
[-1. PORTER.
PORTABLE ELECTRIC GRINDING AND POLISHING LATHE. I APPLICATION FILED JUNE 20, 1919. 1,326,091 Patented'Dec. 23,1919.
3 SHEETS-SHEET 3.
. y /0 llllll/ UNITED sm es ATENnoFFIoE.
EDWARD PORTER, O1 PERRY, FIlZORIDA, ASSIG-NOR OF ONE-HALF TO JAMES L. WEEKS,
I OF PERRY, FLORIDA.
ron'ranm ELECTRIC GRINDING AND POLISHING LATHE.
Specification of Letters Itatent.
Patented Dec. 23, 1919.
Application filed June 20, 1919. Serial in. 305,578.
To all whom it may concern:
Be it known that I, EDWARD Roam, a citizen of the United States, residlng at Perry, in the county of Taylor and State of Florida, have invented certain new and useful Improvements in Portable Electric Grinding and Polishing Lathes, of which the following is a specification.
motor for revolving the machine during a grinding and polishing operation by suitable grinding and polishing wheels, or other devices capable of being applied to and ,operated by the machine.
A further object of the Invention is to provide a portable machine adapted to be a plied to inner and outer curved surfaces of crank pins, cylinders and the like for truing the same by rotating suitable implements during the revolution of the machine either upon the inside or. outside of the art1 cle or device, against which such implements are operated. v
A still further object of the invention is to provide a portable motor machine hav ing planetary motion, and comprising novel and peculiar means or devices of simple character for applying the machine to various curved surfaces for grinding, truing and polishing such surfaces.
Various other objects, advantages and improved results are attainable by reason of the construction, operation and adaptability of the machine, as will be hereinafter fully described.
In the accompanying drawings forming part of this application:
Figure 1 is an end view showing the application of the invention to a crank shaft pln Fig. 2 is a side elevation showing the same application.
Fi 3 is a longitudinal sectional view showing the application of the machine 1 Without t motor! my machine,
Fig. 4 is a detail sectional view taken on the line 4-4 Fig. 3. 1 Fig. 5 is a detail perspective view of the coupling oke.
Fig. 6 1s a detail perspective view of the coupling member having flanges for sus pending a counterbalance and'for mounting a motor. I
Fig. 7 is a sectional view showing the application of the machine to a cylinder.
Fig. 8 is a sectional view of automobile cylinders showing the application of this invention thereto.
-The same reference characters denote the same parts throughout the several views of the drawings.
I am aware of the various apparatus and machines intended for the same purposes as but such apparatus and machines embody many features, inconveniences and expense of the same which are avoidable in and bymy machine, and such machines have been found to be incapable of such universal application and results as are attainable in and by my machine, as will be hereinafter disclosed.
In carrying out my invention I emplo a central shaft or rod 1, oneend of which is screw-threaded to fit the usual screw socket 2 in the pin 3 of a crank shaft 4 and other similar devices, such as cross head p ns and the like, a be trued by rindin and polishing. The other end oft e sha t or rod l-has a square screw-thread and an ordinary thread for a nut 5. Said shaft or rod and nut afford means for attaching the various members or parts of the machine to the article to be ground, as will now be explained. After the rod 1 has been attached to the article to be ground, as the p1n 3, a mounting or foundation member 6, havmg a central longitudinal bore 7 for the rod '1, is secured against the face of the pin 3 by the nut 5 The mounting 6 has a key-way 8 for a key 9 on the inner periphery of a gear wheel 10 slidable lengthwise on the member 6, and said wheel is provided with flanges forming anannularly grooved hub 11, for a pair of prongs 12 of a coupling yoke 13. A split sleeve 14 having suitable clamping bolts, is slidably mounted on the member 6, and the yoke is bolted to the and the yoke are connected so as to slide in unison on the member 6 during the revolution of these elements in a grinding or polishing operation. The head 18 of the "yoke is slidable over the square thread of stud is held in raised position.
the rod 1 during said revolution only when the yoke stud 19 is in mesh with said'thread. The stud 19 works through and is controlled by a spiral spring 20 having one end abuttin against the upper wall 21 of a pocket 22 1n the yoke head, and the other end Works against the enlarged end or flange 23 of the stud which has head grooves 24 for meshing with ribs 25'on the yoke head 18. The function of the spring is to keep the stud in mesh with the square thread of the rod 1, until the stud is lifted by pulling it out of mesh and turning it so that the stud grooves will engage the ribs 25 crosswise, whereby the Obviously by turning the stud so that the grooves and rlbs will mesh, the spring 20 pulls the stud into mesh with the rod screw.
The base of the motor 26 is bolted to the V naled in bearings 32 of the sleeve 14' and having a worm 33 meshing with the ear wheel 10, for revolving the whole mac ine on'the fixed shaft or rod 1, during rotary movement of'a grinding, or polishing wheel by the motor, andduring longitudinal move ment of the whole machine when the stud 19 -1s in mesh. with the square thread of the rod or shaft 1., r
The motor is supplied with'elect'ric current by wires 34 attached thereto and carried by the yoke 13, and by a pair of split -,colleeto .rings 35 loosely clamped to an annular'fiange 36 of the yoke head 18. In order to counterbalance the machine I .attach an arm 1 to a flange '16 projecting from the sleeve 14, and provide said arm with a weight 3* adjustable thereon. Obviously this arm may be shorter and the weight heavien. if necessary to permit the operation of the machine with respect to certain devices or work, especially with respect-to cylinders wherein the machine is operated. It will be observedthat the rod or shaft 1, is used for. anchoring or attachmg and centralizing the machine with respect to the article to be ground, and also afi'ords means for feeding the machine transversely during its revolution, and during rotary movement of the motor which revolves and feeds the machine. 7 7
Referring toFig. 7, the machine is shown as applied to a steam engine cylinder 37 i for n rinding and polishing the inner periphery filereof, and in order to make such application, I secure the ends of a spanner 38 to oneend of the cylinder, and provide the spider head 39 with a tubular extension 40 through which the shaft 41 extends and by means of which said shaft is centralized relative to the cylinder 31. The'projecting ends of the shaft 41 may be journaled in suit-- able supports, and the whole machine, as hereinbefore described, may be operated within this cylinder for grinding, and polishin the inner Wall thereof.
. Referring to Fig. 8 of the drawings, the same machine in its entirety may be applied to automobile head cylinders 42 by means of a frame 43 adapted to bebolted tothe face of the c linders, and mounting the motor 44 on the rame 43 so as to be shifted from one to another of the cylinders for grinding and truing them. Obviously there must be a lengthened or longer motor shaft 45 for this application of the machine, and suficient .space is provided between the face of the cylinders and the frame 43 to permit the grinding wheel to be slid, in said shifting of the machine, from one cylinder to another without removin the' motor or its shaft until all the cylinders are ground, whereupon the frame 43 is readily detached and removed.
Obviously the. compactness of the machine is of great advantage in transportation and application either for outside or inside grinding and polishing. The machine is self feeding lengthwise during simultaneous revolution thereof, and of the grinding wheel at a greater velocity than therevolution of the machine, and the machine is not limited in its applications as herein shown and described, but may be used for grinding and truing rocker arm pins of the well known Corliss engines, cross head pins of various engines, valves, and valve bonnets. Therefore I do not wish to be understood as limiting myself in these respects, nor to any particular material and size in the manufacture and practical application of the invention, nor to any particular vertical feed for motor or any particular reducing gearing, but reserve the right to make such changes and variations therein and in the. combination of the various parts of the machine as may not be inconsistent with the appended claims.
Having thus described my invention What I claim as new and desire to secure by Letters Patent is:
1. In a grinding machine of the character described, a foundation member, anon-revoluble screw shaft. upon which said member is loosely mounted, said shaft adapted to be attached to the article to be ground,
a motor slidably mounted on and geared it, and an adjustable feed device co'nnecte with the motor and adapted to mesh with the said screw shaft for sliding the motor during the joint revolution of the motor and the foundation member; '2
2. In a grinding machine of the character described, a fixed shaft having a screw. feedportion, av foundation cylinder loosely.
mounted on the shaft; whereby one end of the cylinder is made to engagethe' article.-
to be ground and the other-end forms the only bearing between the cylinder and the shaft for the purpose of alinement with respect to such article, a motor slidable on and geared with the cylinder, and a feed device connected with the motor and meshingwith the said screw portion for sliding the motor during the joint revolution of the motor and the cylinder; 7
7 described, a foundation member, a fixed shaftupon which said member is mounted and having a feed screw a gear .wheel slidg ably keyed onsaid mem er, a yoke having a head revoluble on said shaft and engaging" the wheel hub, a stud adjustable the yoke head for meshing with said screw, 9. motor o I Witnesses:
connecting the motor with the yoke for feedgearing connecting the motor with said wheel; j
' 4. In a grinding machine of the character described, a foundation member, a fixed shaft upon which said member is mounted and having a feed. screw, a gear wheel slidably keyed on said member, a yoke having a head revoluble on said shaft and engaging the wheel hub, a stud adjustable in the yoke head for meshing with said screw, a sleeve" on the foundatlon member and attachedrto the yoke, a motor mounted on the sleeve and geared with said wheel for revolving the foundation m ember, the sleeve rotated by the motor during the revolution y -1 of the foundation member and'during trans- 3. I'n-a grinding machine of the character verse feeding of the yoke and the motor.
In *witness whereof I hereunto set my hand in the-presenceoftwo witnesses. I EDWARD POBTER.
F.-M. Sm'rri, "J; Scams,
'ing the motor transversely, and a reducing
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465599A (en) * 1945-07-23 1949-03-29 Continental Aviat & Engineerin Portable external grinder
US2603041A (en) * 1945-09-27 1952-07-15 Alfred J Bowen Surface grinder
US2658313A (en) * 1949-11-23 1953-11-10 Alfred J Bowen Grinding machine
US2675655A (en) * 1954-04-20 Machine fok grinding axle housings
US2698505A (en) * 1951-07-12 1955-01-04 Herman F Anderson Portable grinding machine
US2736995A (en) * 1953-09-28 1956-03-06 Kenneth A Richey Pipe flange grinding machine
US2869293A (en) * 1956-12-19 1959-01-20 Posy A Howard Mounting for pipe end abraders

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675655A (en) * 1954-04-20 Machine fok grinding axle housings
US2465599A (en) * 1945-07-23 1949-03-29 Continental Aviat & Engineerin Portable external grinder
US2603041A (en) * 1945-09-27 1952-07-15 Alfred J Bowen Surface grinder
US2658313A (en) * 1949-11-23 1953-11-10 Alfred J Bowen Grinding machine
US2698505A (en) * 1951-07-12 1955-01-04 Herman F Anderson Portable grinding machine
US2736995A (en) * 1953-09-28 1956-03-06 Kenneth A Richey Pipe flange grinding machine
US2869293A (en) * 1956-12-19 1959-01-20 Posy A Howard Mounting for pipe end abraders

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