GB329186A - Improvements in propelling pencils - Google Patents

Improvements in propelling pencils

Info

Publication number
GB329186A
GB329186A GB1691629A GB1691629A GB329186A GB 329186 A GB329186 A GB 329186A GB 1691629 A GB1691629 A GB 1691629A GB 1691629 A GB1691629 A GB 1691629A GB 329186 A GB329186 A GB 329186A
Authority
GB
United Kingdom
Prior art keywords
helix
projection
propeller
movement
lead
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
GB1691629A
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.)
BAILEY S AGENCIES Ltd
Original Assignee
BAILEY S AGENCIES 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 BAILEY S AGENCIES Ltd filed Critical BAILEY S AGENCIES Ltd
Priority to GB1691629A priority Critical patent/GB329186A/en
Publication of GB329186A publication Critical patent/GB329186A/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

329,186. Bailey's Agencies, Ltd., and Partos, F. June 1, 1929. Pencil holders.-In screw-propelling pencil holders having means for giving an audible signal when the mechanism reaches its limit of movement in either direction, the helix 8 controlling the movement of the lead propeller 4 is secured at its lower end only in a sleeve 7 which may form the outer casing of the pencil holder. The upper end of the helix bears against the closed or flanged end of the sleeve 7. The lead propeller 4 is slidable in the lead-holding tube 3 which is surrounded by the guide tube 2 slotted for the passage of the projection 5 on the propeller. A spring 6 surrounds the propeller, bearing against the projection 5 and a shoulder in the tube 3. In use, when the projection 5 passes out of the upper end of the helix, the helix is compressed, but will expand again when the projection passes the end of the coil. At the forward limit of movement, the projection will be forced into engagement with the helix by the spring 6.
GB1691629A 1929-06-01 1929-06-01 Improvements in propelling pencils Expired GB329186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1691629A GB329186A (en) 1929-06-01 1929-06-01 Improvements in propelling pencils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1691629A GB329186A (en) 1929-06-01 1929-06-01 Improvements in propelling pencils

Publications (1)

Publication Number Publication Date
GB329186A true GB329186A (en) 1930-05-15

Family

ID=10085981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1691629A Expired GB329186A (en) 1929-06-01 1929-06-01 Improvements in propelling pencils

Country Status (1)

Country Link
GB (1) GB329186A (en)

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