GB481315A - Improvements in feed gearing for lathes and like machine tools - Google Patents

Improvements in feed gearing for lathes and like machine tools

Info

Publication number
GB481315A
GB481315A GB34119/36A GB3411936A GB481315A GB 481315 A GB481315 A GB 481315A GB 34119/36 A GB34119/36 A GB 34119/36A GB 3411936 A GB3411936 A GB 3411936A GB 481315 A GB481315 A GB 481315A
Authority
GB
United Kingdom
Prior art keywords
wheel
shaft
feed
gear
lead screw
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
Application number
GB34119/36A
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.)
Ceskoslovenska Zbrojovka As Brno
Original Assignee
Ceskoslovenska Zbrojovka As Brno
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ceskoslovenska Zbrojovka As Brno filed Critical Ceskoslovenska Zbrojovka As Brno
Publication of GB481315A publication Critical patent/GB481315A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/12—Mechanical drives with means for varying the speed ratio
    • B23Q5/14—Mechanical drives with means for varying the speed ratio step-by-step
    • B23Q5/142—Mechanical drives with means for varying the speed ratio step-by-step mechanically-operated
    • 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
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/02—Driving working spindles
    • B23Q2705/06—Mechanical drives with means for varying the speed ratio
    • B23Q2705/062—Mechanical drives with means for varying the speed ratio for lathes
    • B23Q2705/064—Mechanical drives with means for varying the speed ratio for lathes mechanically controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

481,315. Lathes. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. Dec. 11, 1936, No. 34119. Convention date, Dec. 12, 1935. [Class 83 (iii)] Feed gearing for lathes &c., is characterized in that between the drive shaft 5, Fig. 1, and the feed shaft 3, and between the drive shaft and the lead screw 2, an auxiliary transmission is provided comprising a planetary gear P and a gear wheel 23 mounted on the same shaft 15, the gear wheel being capable of engagement with either the feed shaft or the lead screw. The shaft 5 is driven through the usual Norton changespeed gearing (not shown) from the headstock and may be directly coupled to the lead screw 2 through the clutch S, or, by moving the wheel 7 to the extreme left it is brought into engagement with the wheel 11 which drives the feed shaft 3, these arrangements constitute the ordinary feed drives. For further ranges the wheel 7 is moved to its mid- or neutral position and the wheel block 12, 13 is moved to engage either of the wheels 16, 17 which rotate freely on the shaft 15 and carry planetary gears 19, 20 on a pin 18. The pinion 19 meshes with a wheel 21 fixed to the casing, while the pinion 20, integral with pinion 19, meshes with a wheel 22 keyed to the shaft 15. By moving the sliding gear 23 to the right or left it is brought into gear with the wheel 9 or 24 and drives, respectively, the lead screw 2 or the feed shaft 3.
GB34119/36A 1935-12-12 1936-12-11 Improvements in feed gearing for lathes and like machine tools Expired GB481315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS481315X 1935-12-12

Publications (1)

Publication Number Publication Date
GB481315A true GB481315A (en) 1938-03-09

Family

ID=5453062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34119/36A Expired GB481315A (en) 1935-12-12 1936-12-11 Improvements in feed gearing for lathes and like machine tools

Country Status (1)

Country Link
GB (1) GB481315A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206934A (en) * 1987-05-08 1989-01-18 Maxwell Marine Ltd Multispeed winch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206934A (en) * 1987-05-08 1989-01-18 Maxwell Marine Ltd Multispeed winch
US4974467A (en) * 1987-05-08 1990-12-04 Maxwell Marine Limited Stepped ring gear
US4974814A (en) * 1987-05-08 1990-12-04 Maxwell Marine Limited Multispeed winch
GB2206934B (en) * 1987-05-08 1992-01-15 Maxwell Marine Ltd Multispeed gear box.
AU620328B2 (en) * 1987-05-08 1992-02-20 Maxwell Winches Limited Improvements in or relating to gears, gearboxes and winches

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