GB731293A - Improvements relating to the production of ships' propellers - Google Patents

Improvements relating to the production of ships' propellers

Info

Publication number
GB731293A
GB731293A GB2660952A GB2660952A GB731293A GB 731293 A GB731293 A GB 731293A GB 2660952 A GB2660952 A GB 2660952A GB 2660952 A GB2660952 A GB 2660952A GB 731293 A GB731293 A GB 731293A
Authority
GB
United Kingdom
Prior art keywords
guide
propeller
cut
grinding
rail
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
GB2660952A
Inventor
Joseph Francis Tucker
Peter Mathieson
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.)
Bulls Metal and Marine Ltd
Original Assignee
Bulls Metal and Marine Ltd
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 Bulls Metal and Marine Ltd filed Critical Bulls Metal and Marine Ltd
Priority to GB2660952A priority Critical patent/GB731293A/en
Priority to NL182174A priority patent/NL93086C/xx
Publication of GB731293A publication Critical patent/GB731293A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • 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
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/10—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only
    • B23Q35/101—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool
    • B23Q35/105—Means for transforming movement of the feeler or the like into feed movement of tool or work mechanically only with a pattern composed of one or more lines used simultaneously for one tool of two lines

Abstract

731,293. Grinding propellers. BULL'S METAL & MARINE, Ltd. Oct. 20, 1953 [Oct. 23, 1952], No. 26609/52. Class 60. A series of grooves to serve as a guide to a finishing operation is cut in a ship's propeller having blades which vary in pitch from root to tip by a machine comprising means for holding the propeller 1 in position and a grinding-head 17, Fig. 1, slidably mounted on a guide 12 which is capable of rotation about and movement parallel to the axis of the propeller, the outer end of the guide being itself guided on an inclined rail 24 adjustable to the required pitch angle. The propeller is centred by dogs or pinching screws on a table 2 which is normally held by friction but may be easily turned when the oil pressure in its bearing 5 is increased by a hand pump 7. A counterbalanced bracket 10 slidably and rotatably mounted on a central steel post 8 supports the guide 12 at an angle which may be adjusted by means of a screwed section 13a on a tie-rod 13. In operation, the guide 12 is set to the rake angle (if any) of the blades and a radial groove cut from root to tip of each blade by traversing the head 17 along the guide 12 with a feed-screw 15. A series of circumferential grooves at radial intervals of 3 to 6 inches is then cut by rotating the guide 12 about the post 8, each groove being cut at the required pitch angle by adjustment of calibrated supports 25, Fig. 3, for the rail 24. The guide engages this rail through a roller mounted on a telescopic section 12a which is adjusted simultaneously with the screwed section 13a. An electrically-driven thin grinding-wheel, preferably of the resin-bonded type, is used.
GB2660952A 1952-10-23 1952-10-23 Improvements relating to the production of ships' propellers Expired GB731293A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2660952A GB731293A (en) 1952-10-23 1952-10-23 Improvements relating to the production of ships' propellers
NL182174A NL93086C (en) 1952-10-23 1953-10-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2660952A GB731293A (en) 1952-10-23 1952-10-23 Improvements relating to the production of ships' propellers

Publications (1)

Publication Number Publication Date
GB731293A true GB731293A (en) 1955-06-08

Family

ID=34814602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2660952A Expired GB731293A (en) 1952-10-23 1952-10-23 Improvements relating to the production of ships' propellers

Country Status (2)

Country Link
GB (1) GB731293A (en)
NL (1) NL93086C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941301A (en) * 1956-09-26 1960-06-21 Wright Calvin Alexander Pitchometer and grinder mount
FR2649352A1 (en) * 1989-07-07 1991-01-11 Rabeyrin Freres Ets Device for producing curved surfaces in blocks of rock
FR2906744A1 (en) * 2006-10-05 2008-04-11 Dufieux Ind Sa DEVICE FOR MACHINING LARGE DIAMETER PARTS SUCH AS HYDROELECTRIC TURBINE ROTORS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50101988A (en) * 1974-01-12 1975-08-12

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941301A (en) * 1956-09-26 1960-06-21 Wright Calvin Alexander Pitchometer and grinder mount
FR2649352A1 (en) * 1989-07-07 1991-01-11 Rabeyrin Freres Ets Device for producing curved surfaces in blocks of rock
FR2906744A1 (en) * 2006-10-05 2008-04-11 Dufieux Ind Sa DEVICE FOR MACHINING LARGE DIAMETER PARTS SUCH AS HYDROELECTRIC TURBINE ROTORS
WO2008043942A1 (en) * 2006-10-05 2008-04-17 Dufieux Industrie Device for machining large-diameter workpieces such as hydroelectric turbine rotors

Also Published As

Publication number Publication date
NL93086C (en) 1960-01-15

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