GB831632A - Improvements in and relating to longitudinally slit lead gripping devices for pencils - Google Patents

Improvements in and relating to longitudinally slit lead gripping devices for pencils

Info

Publication number
GB831632A
GB831632A GB40112/57A GB4011257A GB831632A GB 831632 A GB831632 A GB 831632A GB 40112/57 A GB40112/57 A GB 40112/57A GB 4011257 A GB4011257 A GB 4011257A GB 831632 A GB831632 A GB 831632A
Authority
GB
United Kingdom
Prior art keywords
bore
pencils
enlarged
point section
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
GB40112/57A
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.)
GEORG WISSMULLER
RUDOLF KREUTZER
Original Assignee
GEORG WISSMULLER
RUDOLF KREUTZER
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
Priority claimed from DE356372X external-priority
Application filed by GEORG WISSMULLER, RUDOLF KREUTZER filed Critical GEORG WISSMULLER
Publication of GB831632A publication Critical patent/GB831632A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00Propelling pencils
    • B43K21/02Writing-core feeding mechanisms
    • B43K21/22Writing-cores gripping means, e.g. chucks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00Chucks or sockets
    • Y10T279/17Socket type
    • Y10T279/17411Spring biased jaws
    • Y10T279/17529Fixed cam and moving jaws

Abstract

831,632. Propelling pencils. KREUTZER, R., and WISSMULLER, G., [trading as STAEDTLER, J. S., [Firm of]]. Dec. 24, 1957 [Dec. 24, 1956], No. 40112/57. Class 146(3) A longitudinally slit lead gripping device for pencils for holding leads of different thicknesses has a frusto-conical outer surface which is stepped in such a manner that any one of the steps can co-operate with the forward part of the pencil depending upon the thickness of the lead. The gripping device b has a cylindrical rear portion threaded at c for connection with a lead guiding tube or the like and which is inserted in a corresponding bore in the point section a of the pencil. The bore is enlarged at the outer end of the point section to receive the enlarged portion of the gripping device which is formed with three annular steps f 1 , f 2 , f 3 . ...The device has a number of longitudinal slots d to form a corresponding number of gripping jaws. The diameter of the bore of the head part e of the device is variable to accommodate leads of different thicknesses, being at its smallest when the step f is inserted in the enlarged bore of the point section and at its largest when only the step f 3 is inserted.
GB40112/57A 1956-12-24 1957-12-24 Improvements in and relating to longitudinally slit lead gripping devices for pencils Expired GB831632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE356372X 1956-12-24

Publications (1)

Publication Number Publication Date
GB831632A true GB831632A (en) 1960-03-30

Family

ID=6290264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40112/57A Expired GB831632A (en) 1956-12-24 1957-12-24 Improvements in and relating to longitudinally slit lead gripping devices for pencils

Country Status (3)

Country Link
US (1) US2933065A (en)
CH (1) CH356372A (en)
GB (1) GB831632A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108528095A (en) * 2018-05-16 2018-09-14 张济人 A kind of general-using type ball pen shell of no pen cap

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL17872C (en) * 1923-11-24
US1745226A (en) * 1927-11-09 1930-01-28 Francis E Meyer Chuck-type pencil
US2312136A (en) * 1940-08-31 1943-02-23 William Van Triest Seam marking and measuring device

Also Published As

Publication number Publication date
US2933065A (en) 1960-04-19
CH356372A (en) 1961-08-15

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