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US1848224A - Pencil holder - Google Patents

Pencil holder Download PDF

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Publication number
US1848224A
US1848224A US455929A US45592930A US1848224A US 1848224 A US1848224 A US 1848224A US 455929 A US455929 A US 455929A US 45592930 A US45592930 A US 45592930A US 1848224 A US1848224 A US 1848224A
Authority
US
United States
Prior art keywords
lead
holder
pencil
tube
conical
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 - Lifetime
Application number
US455929A
Other languages
English (en)
Inventor
Schmid Carl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US1848224A publication Critical patent/US1848224A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B43K21/16—Writing-core feeding mechanisms with stepwise feed of writing-cores
    • B43K21/20—Writing-core feeding mechanisms with stepwise feed of writing-cores with writing-cores automatically replaced from magazines

Definitions

  • the i-guidepiecec hasa conicalinilled edge set Figs. 3, 4 and 5 give on a larger scale the against the cap and the spare leads lie on this I0 longitudinal and cross sections ofthe clampconical surface.
  • the spare leads kslide Figs. 6 and 7 show on a large scale the byfgravityoii' 'thefconical surface into fthey longitudinal and cross sections of a ⁇ second oi'ificeof the' guide piece and thus into the form. casing p. To prevent twospare leads slid-l The lead a is fed into the tube p which is ing into the aperture together and jamming, 65
  • the y colours, as required, being fed from the ⁇ spare vholdeiJ is securely fastened to vthe holder lead'holder into the casing p.
  • the casing p hasaguide piecelcandan ed by'fsubdividin'g the lead holder s.
  • the 75 extending tube Z which isalso arranged to aC leads are fed intoy the casing by turning the as a holder for spare leads and is closed by cap u with the holder in a'vertical position. a cap m..
  • 3) may consist, for instance, @nd 0f the PC D body having a conical HHGI 0f a, thread, and to prevent the twisting Of surface providing a seat for the conical outer the lead, the front; pari; 0f the thread f is'cut surface of said clamping jaws, and a spring right handed and the back part g is'given a inserted between the pencil body and the left handed thread.
  • guide tube for normally urging the guide 100 tube inwardly relative to the pencil' body
  • a tubular pencil bo y a slidable guide tube for the lead within the pencil bod resilient clampi 'aws at the outer end o the guide lo tube an aving their inner surface partly provided with a right hand helicoidal groove and partly with a left hand helicoidal groove, said clamping jaws having anouter conical surface extending over a part ofthat length of the 'aws of whichV the inner surface is groove the end ofthe pencil body having a conical inner surface providing a "seat or said conical outer sur ace of the clampin aws, and a spring inserted between the penci body and the guide tube for normally urging the guide tube inwardly relative to the pencil 3?
  • a tubular pencil bo y forming a lead maazine
  • a guide tube for the lead slidable wit in the pencil body resilient clamping jaws at the outer end of .the uide tube and having a rou hened inner sur ace in contact with the lead 1n the tube, said clamping jaws having 3o a conical outer surface extendingaover a part of that length of the jaws of which the inner surface is roughened
  • the end of the pencil bod being provided with a conical inner sur ace coacting with the conical outer surface of the clampin jaws
  • a spring inserted between the pencil ody and the guide tube for normally urging the guide tube inwards relative to the pencil body
  • a guide member surrounding the upper end of the guide tube and being provided with a conically shaped end face sup orting the leads in the lead magazine, an means on said end face providin an entrance for one lead at the time only into the guide tube.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
US455929A 1929-05-25 1930-05-26 Pencil holder Expired - Lifetime US1848224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1848224X 1929-05-25

Publications (1)

Publication Number Publication Date
US1848224A true US1848224A (en) 1932-03-08

Family

ID=4566493

Family Applications (1)

Application Number Title Priority Date Filing Date
US455929A Expired - Lifetime US1848224A (en) 1929-05-25 1930-05-26 Pencil holder

Country Status (3)

Country Link
US (1) US1848224A (xx)
BE (1) BE370548A (xx)
FR (1) FR696091A (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726637A (en) * 1952-10-10 1955-12-13 Gen Dynamics Corp Pencil
US2823644A (en) * 1953-11-17 1958-02-18 Wieringa Drawing pencil holders
US4251163A (en) * 1979-03-21 1981-02-17 Chao Wen Kuei Knock-out type automatic pencil
WO2000074952A1 (en) * 1999-06-02 2000-12-14 Huang, Alice, Y. Segmental writing element storing and feeding mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726637A (en) * 1952-10-10 1955-12-13 Gen Dynamics Corp Pencil
US2823644A (en) * 1953-11-17 1958-02-18 Wieringa Drawing pencil holders
US4251163A (en) * 1979-03-21 1981-02-17 Chao Wen Kuei Knock-out type automatic pencil
WO2000074952A1 (en) * 1999-06-02 2000-12-14 Huang, Alice, Y. Segmental writing element storing and feeding mechanism

Also Published As

Publication number Publication date
FR696091A (fr) 1930-12-26
BE370548A (xx)

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