GB632156A - Improvements in or relating to propellor pencils - Google Patents

Improvements in or relating to propellor pencils

Info

Publication number
GB632156A
GB632156A GB1268846A GB1268846A GB632156A GB 632156 A GB632156 A GB 632156A GB 1268846 A GB1268846 A GB 1268846A GB 1268846 A GB1268846 A GB 1268846A GB 632156 A GB632156 A GB 632156A
Authority
GB
United Kingdom
Prior art keywords
tube
abutment
fixed
pencils
slot
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
GB1268846A
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.)
THEODORE FRANCIS HENRY BARRY
Original Assignee
THEODORE FRANCIS HENRY BARRY
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 THEODORE FRANCIS HENRY BARRY filed Critical THEODORE FRANCIS HENRY BARRY
Priority to GB1268846A priority Critical patent/GB632156A/en
Publication of GB632156A publication Critical patent/GB632156A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/08—Writing-core feeding mechanisms with the writing-cores fed by screws

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

632,156. Propeller pencils. THORNTON, A. A. (Barry, T. F. H.). April 26, 1946, No. 12688. [Class 146 (iii)] The end 6 of a rod 5 fixed to a lead-holder 7 extends through a helical slot 2 in a tube 1 normally frictionally held by abutments 10, 13, movement of the lead being effected by rotating an inner tube 3 having a longitudinal slot 4, whereby the part 6 travels along the slot 2 until the former engages either of the abutments 10, 13 whereupon the tubes 1, 3 rotate together and damage to the mechanism is avoided. The abutment 10 is fixed to an outer barrel 9, and the abutment 13 can swivel on the tube 3 ; each abutment may have a conical recess to increase the drag on the tube 2. The tube 3 is rotated by means of a knob 12 frictionally held on a sleeve 11 fixed to the tube. The end of the sleeve contains spare leads 8a and is closed by a plug 15.
GB1268846A 1946-04-26 1946-04-26 Improvements in or relating to propellor pencils Expired GB632156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1268846A GB632156A (en) 1946-04-26 1946-04-26 Improvements in or relating to propellor pencils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1268846A GB632156A (en) 1946-04-26 1946-04-26 Improvements in or relating to propellor pencils

Publications (1)

Publication Number Publication Date
GB632156A true GB632156A (en) 1949-11-17

Family

ID=10009306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1268846A Expired GB632156A (en) 1946-04-26 1946-04-26 Improvements in or relating to propellor pencils

Country Status (1)

Country Link
GB (1) GB632156A (en)

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