GB523868A - Improvements in or relating to machines for grinding or sharpening knife and like blades - Google Patents

Improvements in or relating to machines for grinding or sharpening knife and like blades

Info

Publication number
GB523868A
GB523868A GB162839A GB162839A GB523868A GB 523868 A GB523868 A GB 523868A GB 162839 A GB162839 A GB 162839A GB 162839 A GB162839 A GB 162839A GB 523868 A GB523868 A GB 523868A
Authority
GB
United Kingdom
Prior art keywords
wheel
slot
blade
guide
prongs
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
GB162839A
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.)
BRITISH EMULSIFIERS Ltd
Original Assignee
BRITISH EMULSIFIERS 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 BRITISH EMULSIFIERS Ltd filed Critical BRITISH EMULSIFIERS Ltd
Priority to GB162839A priority Critical patent/GB523868A/en
Publication of GB523868A publication Critical patent/GB523868A/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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/54—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of hand or table knives

Abstract

523,868. Sharpening cutlery blades. BRITISH EMULSIFIERS, Ltd., and CURZON, T. Jan. 17, 1939, No. 1628. [Class 60] [Also in Group XXII] A small portable machine with rotary grinding-wheel or file for the domestic sharpening of cutlery blades has a wheel 4 mounted at an acute angle to the vertical upon the armature shaft of a motor 1 on a shaft driven from a hand crank through gearing. The centre of the wheel is recessed and there may be in addition one or more annular grooves 14. A guide member 15 has teeth projecting into these grooves or recesses and it is also inclined at an acute angle to the vertical in the other direction. In grinding the blade is held vertically so as substantially to bisect the angle between the wheel and guide. A slot 16 in the casing assists in maintaining this position. The wheel may have a guide and slot co-acting with its other face so that both sides of the blade may be ground alternately. In a modification the guide prongs have different inclinations so that their surfaces lie approximately on a helix. The various prongs intersect the plane of the slot in a common line and it is here that the edge of the blade rests. The prongs are preferably thin to remove burrs as the blade is drawn through the slot.
GB162839A 1939-01-17 1939-01-17 Improvements in or relating to machines for grinding or sharpening knife and like blades Expired GB523868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB162839A GB523868A (en) 1939-01-17 1939-01-17 Improvements in or relating to machines for grinding or sharpening knife and like blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB162839A GB523868A (en) 1939-01-17 1939-01-17 Improvements in or relating to machines for grinding or sharpening knife and like blades

Publications (1)

Publication Number Publication Date
GB523868A true GB523868A (en) 1940-07-24

Family

ID=9725225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB162839A Expired GB523868A (en) 1939-01-17 1939-01-17 Improvements in or relating to machines for grinding or sharpening knife and like blades

Country Status (1)

Country Link
GB (1) GB523868A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522942A (en) * 1948-10-08 1950-09-19 George A Gillen Electric knife sharpener
US2775075A (en) * 1949-02-16 1956-12-25 G M Lab Inc Knife sharpener
WO2012147734A1 (en) * 2011-04-26 2012-11-01 株式会社貝印刃物開発センター Electric cutting-tool grinder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522942A (en) * 1948-10-08 1950-09-19 George A Gillen Electric knife sharpener
US2775075A (en) * 1949-02-16 1956-12-25 G M Lab Inc Knife sharpener
WO2012147734A1 (en) * 2011-04-26 2012-11-01 株式会社貝印刃物開発センター Electric cutting-tool grinder
US9073166B2 (en) 2011-04-26 2015-07-07 Kai R&D Center Co., Ltd. Electric cutting-tool grinder

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