US1871752A - Control apparatus - Google Patents
Control apparatus Download PDFInfo
- Publication number
- US1871752A US1871752A US519992A US51999231A US1871752A US 1871752 A US1871752 A US 1871752A US 519992 A US519992 A US 519992A US 51999231 A US51999231 A US 51999231A US 1871752 A US1871752 A US 1871752A
- Authority
- US
- United States
- Prior art keywords
- stock
- speed
- diameter
- periphery
- rotation
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/08—Control or regulation of cutting velocity
- B23Q15/10—Control or regulation of cutting velocity to maintain constant cutting velocity between tool and workpiece
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- 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
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2531—Carriage feed
- Y10T82/2533—Control
- Y10T82/2535—Electrical type
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- 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
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2552—Headstock
- Y10T82/2554—Speed changing gear
- Y10T82/2556—Speed change gears for maintaining constant cutting speed
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- 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
- Y10T82/00—Turning
- Y10T82/30—Miscellaneous
Definitions
- one of the principal objects of the present invention is to improve the eiiiciency of apparatus of this general character by providing means for automatically maintaining the peripheral speed of a rotating piece of stock relative to a tool substantially constant at the optimum speed Vfor the tool irrespective of the diameter of the stock.
- the single figure of the drawing is a view illustrating diagrammatically an apparatus for controlling the speed of a piece of stock relative to a tool.
- a piece of stock 10 is mounted in any usual or approved manner for rotation as by being chucked or otherwise suitably connected to the spindle 11 which is driven by a belt 12 trained over the driving pulley 13 of a driving motor 14.
- a roller 16 is rotatably mounted upon a rod 17 which is mounted in a bearing 18 to slide in a direction transversely of the stock 10.
- this bearing 18 is arranged to guide the roller 16 for movement substantially along a diameter of the stock.
- the roller 16 is held yieldably in engagement with the periphery of the stock by a coil spring 19 disposed about the rod and interposed between the bearing ⁇ and the roller mounting. As the diameter of the stock is reduced by the tool 21, it will be seen that this roller 16 will continue to bear on the periphery of the stock and thus serve as an index of the diameter.
- Means for automatically decreasing' the Speed of rotation of stock in an. apparatus-r ⁇ in which the rotated stocglr is reduced in periph ery by a machining operation comprising a motor by which the stock is rotated, a roller yieldably held continually in Contact with the periphery oi the stock during the machining operation, and a variable resistance by which the speed of the motor is regulated, Said resistance being controlled at all times by the position oisaid roller whereby the stock is maintained at theV optimum speed of' rotation.
Description
Allg. 16, 1932. G K SlMONDS 1,871,752
CONTROL APPARATUS Filed Mach 4. 1931 y 7&5 miiygl PatentedY ug. 16, 1932 UNITED STATES GIFFORD K. SIMONDS, 0F BOSTON, IVIASSACHU'SIiiCITS,` .ASSIGNOR TO SIMONDS SAW AND STEEL COMPANY, OF FITCHBURG, MASSACHUSETTS, A CRPO'RATION 0F MASSACHU- SETTS CONTROL APPARATUS Application led March 4, 1931.
or other machining operations in W ich the diameter of the stock is progressively reduced, the optimum speed obviously cannot prevail at each successive diameter unless the speed of rotation is varied in accordance with variations of diameter. v
Accordingly one of the principal objects of the present invention is to improve the eiiiciency of apparatus of this general character by providing means for automatically maintaining the peripheral speed of a rotating piece of stock relative to a tool substantially constant at the optimum speed Vfor the tool irrespective of the diameter of the stock.
The single figure of the drawing is a view illustrating diagrammatically an apparatus for controlling the speed of a piece of stock relative to a tool.
As shown in the drawing a piece of stock 10 is mounted in any usual or approved manner for rotation as by being chucked or otherwise suitably connected to the spindle 11 which is driven by a belt 12 trained over the driving pulley 13 of a driving motor 14. A roller 16 is rotatably mounted upon a rod 17 which is mounted in a bearing 18 to slide in a direction transversely of the stock 10. Preferably this bearing 18 is arranged to guide the roller 16 for movement substantially along a diameter of the stock. The roller 16 is held yieldably in engagement with the periphery of the stock by a coil spring 19 disposed about the rod and interposed between the bearing` and the roller mounting. As the diameter of the stock is reduced by the tool 21, it will be seen that this roller 16 will continue to bear on the periphery of the stock and thus serve as an index of the diameter.
Serial No. 519,992.
Since for a constant rotational speed, the peripheral speed Varies substantially directly as the diameter of the stock, it will be evident that this arrangement provides for ac-V curately and instantaneously controlling the relativev peripheral speed of the stock. In the present instance Vthis control is applied to a variable resistance 22 in the field circuit 23, 24l of the driving motor 14, the rod 17 being connected to an actuating arm 26 which may be mounted to pivot at 27 and thus be capable of varying the resistance and consequently the speed of the motor directly as the diameter and the peripheral speed of the stock changes. v
While the features of the invention have been illustrated as embodied in an apparatus iitted lwith an ordinary turningtool 21, it will beevident that where the tool employed is of the Yrotary or driven type, such as a grinding wheel for example, the relative speed of the stockl and of the rotating tool may be controlled by providing control apparatus of the type illustrated for the tool as well as for the stock being opera-ted upon. Similarly Where a grinding wheel is applied to a substantially flat or plane surface, means of the character illustrated herein for controlling the speed of the stock may be employed for controlling the peripheral speed of the tool.
I claim:
1. In an apparatus of the class describedy wherein the diameter of stock is reduced by a machining operation, means for rotating the stock, means for regulating the speed of rotation thereof, and means continually in contact with the stock for controlling the regulating means whereby the rotation of the stock is automatically maintained continually at the optimum speed.
2. In an apparatus of the class described wherein the diameter of stock is reduced by a machining operation, means for rotating the stock, means for regulating the speed of rotation thereof, means bearing continually against the periphery of the stock during the machining operation, and a connection between said bearing means and said speed regulating means whereby as the peripheral surface of the stock is decreased the speed of the rotation imparted to the stock is relatively increased automatically to maintain the stock continuously at the optimum speed.
3. In an apparatus of the class described wherein the periphery of the stock is reduced by a machining operation7 a motor by which said stock is rotated, a device bearing continually against the periphery of the stock, and means for regulatingl the Speed at which i the Stock is rotated by the motor, said' means including an arm actuated by the device whereby as the periphery of the stock is decreased the speed at Which the stock is rotated by the motor is relatively increased so that the stock is automatically maintained continually at the optimum speed.
4. rlhat method of automatically decreas. ing the speed of rotation of stock in api.- paratus in Which the rotated stock is reduced in. periphery by a machining operation, by
means of a device bearing continually upon the periphery of the-stock..
5'. Means for automatically decreasing' the Speed of rotation of stock in an. apparatus-r` in which the rotated stocglr is reduced in periph ery by a machining operation, comprising a motor by which the stock is rotated, a roller yieldably held continually in Contact with the periphery oi the stock during the machining operation, and a variable resistance by which the speed of the motor is regulated, Said resistance being controlled at all times by the position oisaid roller whereby the stock is maintained at theV optimum speed of' rotation.
Signed by ine at Boston, Mass., this V2nd day of March, 1931.
i GIFFORD K. SIMGND-S.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US519992A US1871752A (en) | 1931-03-04 | 1931-03-04 | Control apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US519992A US1871752A (en) | 1931-03-04 | 1931-03-04 | Control apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US1871752A true US1871752A (en) | 1932-08-16 |
Family
ID=24070736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US519992A Expired - Lifetime US1871752A (en) | 1931-03-04 | 1931-03-04 | Control apparatus |
Country Status (1)
Country | Link |
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US (1) | US1871752A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422681A (en) * | 1941-09-23 | 1947-06-24 | Bailey Meter Co | Machine tool control |
US2537657A (en) * | 1945-05-05 | 1951-01-09 | Western Union Telegraph Co | Disk type magnetic recordingreproducing apparatus |
US2686992A (en) * | 1951-01-20 | 1954-08-24 | Kindt Collins Company | Combination spindle machine |
US2818491A (en) * | 1955-07-13 | 1957-12-31 | Elox Corp Michigan | Electrode wear compensation |
US2900145A (en) * | 1957-09-26 | 1959-08-18 | Western Electric Co | Variable speed distributor |
US2947121A (en) * | 1959-03-25 | 1960-08-02 | Norton Co | Grinding wheel and wheel diameter measuring apparatus |
US2986853A (en) * | 1959-05-11 | 1961-06-06 | Us Electrical Tool Co | Grinding machine assemblies |
US2999429A (en) * | 1958-12-19 | 1961-09-12 | Gleason Works | Drive of gear generating machine |
US3010348A (en) * | 1955-03-17 | 1961-11-28 | Sundstrand Corp | Lathes |
-
1931
- 1931-03-04 US US519992A patent/US1871752A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422681A (en) * | 1941-09-23 | 1947-06-24 | Bailey Meter Co | Machine tool control |
US2537657A (en) * | 1945-05-05 | 1951-01-09 | Western Union Telegraph Co | Disk type magnetic recordingreproducing apparatus |
US2686992A (en) * | 1951-01-20 | 1954-08-24 | Kindt Collins Company | Combination spindle machine |
US3010348A (en) * | 1955-03-17 | 1961-11-28 | Sundstrand Corp | Lathes |
US2818491A (en) * | 1955-07-13 | 1957-12-31 | Elox Corp Michigan | Electrode wear compensation |
US2900145A (en) * | 1957-09-26 | 1959-08-18 | Western Electric Co | Variable speed distributor |
US2999429A (en) * | 1958-12-19 | 1961-09-12 | Gleason Works | Drive of gear generating machine |
US2947121A (en) * | 1959-03-25 | 1960-08-02 | Norton Co | Grinding wheel and wheel diameter measuring apparatus |
US2986853A (en) * | 1959-05-11 | 1961-06-06 | Us Electrical Tool Co | Grinding machine assemblies |
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