US1649892A - Method and apparatus for making pencils - Google Patents

Method and apparatus for making pencils Download PDF

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Publication number
US1649892A
US1649892A US148154A US14815426A US1649892A US 1649892 A US1649892 A US 1649892A US 148154 A US148154 A US 148154A US 14815426 A US14815426 A US 14815426A US 1649892 A US1649892 A US 1649892A
Authority
US
United States
Prior art keywords
nozzle
pulp mass
mass
pulp
pencils
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
US148154A
Other languages
English (en)
Inventor
Charles E Daniels
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.)
AMERICAN CRAYON CO
Original Assignee
AMERICAN CRAYON CO
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 to BE346739D priority Critical patent/BE346739A/xx
Application filed by AMERICAN CRAYON CO filed Critical AMERICAN CRAYON CO
Priority to US148154A priority patent/US1649892A/en
Priority to FR702870D priority patent/FR702870A/fr
Priority to GB30553/27A priority patent/GB280597A/en
Priority to DEA52472D priority patent/DE496017C/de
Application granted granted Critical
Publication of US1649892A publication Critical patent/US1649892A/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
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/16—Making non-propelling pencils

Definitions

  • This invention relates to' an improved method and apparatus for making pencils, and has for its primary object to provide a novel method which may be expeditiously performed to accurately produce a pencil of the desired size and shape, and which method requires the use of apparatus of relatively simple and inexpensive construction.
  • the invention consists in the improved method and apparatus of making pencils, and in the form, construction and relative arrangement of the several parts of the apparatus as will be hereinafter more fully described, illustrated in the accompanying drawings, and subsequently incorporated in the subjoined claims.
  • Figure 1 is a longitudinal sectional view through a pencil making apparatus illustrating the essential features thereof;
  • Fig. 2 is a transverse section taken on the line 2-2 of Fig. 1;
  • Fig. 3 is a similar section taken on the line 33 of Fig. 1, and
  • Fig. 4 is a transverse sectional view taken on the line 4.4 of Fig. 1.
  • I provide a pulp mass receiving cylinder 5 horizontally positioned and supported upon a suitable standard 6. Adjacent to one of its ends thiscylinder is provided with a feed hopper 7 and to the other end of said cylinder a conical or tapered shaping nozzle 8 is connected.
  • a reciprocating plunger 9 operates within the cylinder 5, and as herein shown, this plunger may be conveniently actuated by a worm screW'lO having threaded connection with the cylinder head 11 and provided upon 1ts outer end with a hand wheel 12 or other suitable means for rotating said screw.
  • the lnner end of the feed screw 10 is suitably connected to the plunger 9 for free rotation relative thereto but against axial movement with respect to the plunger.
  • the plunger 9 will be moved longltudinally in the cylinder to force the pulp mass indicated at 13 under pressure through the shaping nozzle 8 and from the outlet end thereof.
  • This outlet end of said nozzle has a predetermined internal cross sectional form corresponding with the cross sectional shape of the pencil to be produced.
  • the worm screw 10 has a longitudinally extending bore 14.
  • a tube 15 is axially positioned within the cylinder 5 and nozzle 8, said tube. at one of its ends terminating in spaced relation to the outlet end of said nozzle and adjacent thereto being supported by suitable webs 16 or other means connecting the tube with the wall of said nozzle.
  • the other end of said tube extends loosely within the bore 14 of the feed screw 10.
  • This tube is adapted to receive the pencillead indicated at 17 In spaced relation to the outlet end of the nozzle 8, a pair of parallel guide rods 18 are mounted in suitable supporting standards 19.
  • a rod 20 having a recessed head 21 on one end thereof extends above and in parallel relation to the rod 18, said rod at its opposite end being provided with the divergently extending arms 22, each of which terminates in a sleeve 23 slidably engaged upon one of the rods 18.
  • the end of the rod having the head 21 is also centrally provided with an axially extending socket 24 to receive one end of the lead 17.
  • a suitable heating device is associated with the outlet end of the nozzle 8.
  • this device includes an outer cylindrical. chamber 25 having the lower s'ec tion of its wall provided with openings therein as at 26 and a chamber 27 below the same in which the gas burner 28 of any suitable type is adapted to be mounted.
  • a second inner chamber 29 concentric with the cylindrical chamber has its wall perforated as at 30, and into one end of this 1nner chamber the outlet end of the shaping nozzle 8 projects, as clearly shown in Fig. 1 of the drawings.
  • the upper end of the standard 19 adjacent to the burner casing is provided with a sultably formed guide seat 31 to receiye and support the formed body of the pencll.
  • a lead 17 of suitable length is first positioned in the tube 15 and the rod 20 adjusted along the guide rods 18 so that the head 21 of said rod contacts with the outlet end of the nozzle 8, the end of the lead 17 being positioned in the socket 24.
  • the worm screw 10 is then rotated and the plastic mass of paper or wood is forced under gradually increasing pressure through the nozzle 8. Owing to the restricted area of the outlet end portion of this nozzle beyond the web 16, the fibers of the pulp mass are very closely compacted whereby said mass is caused to bind tightly on the central lead core and is finally exuded from thenozzle in the cross sectional shape thereof and forced under pressure against the head 21 of the rod 20.
  • This hardening action occurs progressively during the continued pressure against the body of the pulp mass within the cylinder 5 and as the pencil body is thus formed, the rod 20 is moved along the supporting guide rods 18 whereby the lead 17 is drawn from the tube 15 at the same rate of speed as the pulp mass is exuded from the outlet end of the shaping nozzle.
  • the head 21 of the rod 20 has moved beyond the upper end of standard 19 nearest the heater, the body of the pencil is slidably supported upon the seat 31 of said standard.
  • the formed pencil may be cut oil in sections of the required length by any suitable means at a point adjacent the seat 31, and the rod 20 moved along the guides 18 to again engage the head 21 thereof with the end of the formed pencil. The above described operation is then continued until the entire mass of pulp in the cylinder 5 has been discharged therefrom.
  • An apparatus for making pencils (mmprisin'g a horizontally positioned pulp mass receiving cylinder, a shaping nozzle connected with one end of said cylinder to receivc the pulp mass therefrom, means for with one end of said cylinder to receive the pulp mass therefrom, means for supporting a lead core for axial movement through the shaping nozzle, means for exuding the pulp mass under pressure from said shaping nozzle, means actuated by the pulp mass as it is exuded from said nozzle for simultaneously feeding the lead core through the nozzle mouth at the same rate of speed as the pulp mass, and heating means surrounding the mouth of the shaping nozzle for applying heat to the shaped pulp mass progressively as it is exuded from the nozzle mouth.
  • the method of making pencils which consists in supporting a lead core for axial movement through the mouth of a shaping nozzle, exuding a, pulp mass under pressure mass to feed the lead core at the same rate from said shaping nozzle in a homogenously of speed as the pulp mass through the shapcompacted body enclosing said lead core proing nozzle. 10 gressively heating the shaped pulp mass at In testimony that I claim the foregoing 5 the mouth of the shaping nozzle to evaporate as my invention, I have signed my name the moisture content thereof and utilizing hereto. the movement of the shapedend of the pulp CHARLES E. DANIELS.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US148154A 1926-11-13 1926-11-13 Method and apparatus for making pencils Expired - Lifetime US1649892A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE346739D BE346739A (enrdf_load_stackoverflow) 1926-11-13
US148154A US1649892A (en) 1926-11-13 1926-11-13 Method and apparatus for making pencils
FR702870D FR702870A (fr) 1926-11-13 1927-11-12 Procédé et appareil perfectionnés pour la fabrication des crayons
GB30553/27A GB280597A (en) 1926-11-13 1927-11-14 An improved method of and apparatus for making pencils
DEA52472D DE496017C (de) 1926-11-13 1927-11-15 Vorrichtung zur Herstellung von Bleistiften

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US148154A US1649892A (en) 1926-11-13 1926-11-13 Method and apparatus for making pencils

Publications (1)

Publication Number Publication Date
US1649892A true US1649892A (en) 1927-11-22

Family

ID=22524533

Family Applications (1)

Application Number Title Priority Date Filing Date
US148154A Expired - Lifetime US1649892A (en) 1926-11-13 1926-11-13 Method and apparatus for making pencils

Country Status (5)

Country Link
US (1) US1649892A (enrdf_load_stackoverflow)
BE (1) BE346739A (enrdf_load_stackoverflow)
DE (1) DE496017C (enrdf_load_stackoverflow)
FR (1) FR702870A (enrdf_load_stackoverflow)
GB (1) GB280597A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546975A (en) * 1946-10-18 1951-04-03 Standard Telephones Cables Ltd Extrusion device
US2694349A (en) * 1949-06-25 1954-11-16 Crane Co Method for producing cement pipes
US2790202A (en) * 1952-03-31 1957-04-30 Lorenian Zareh Method and apparatus for manufacturing pencils
US2806249A (en) * 1944-06-09 1957-09-17 Burnie J Craig Apparatus for making a composition containing covered particles
US2825091A (en) * 1954-08-06 1958-03-04 Jennings Machine Corp Wire coating apparatus
US2902754A (en) * 1955-07-07 1959-09-08 Lorenian Eugenia Manufacture of slidable-core pencils
US3765811A (en) * 1971-01-18 1973-10-16 Ikegai Iron Works Ltd Apparatus for manufacturing standard-length articles covered with plastic material
CN106696524A (zh) * 2016-11-17 2017-05-24 浙江晨浩文体用品有限公司 一种制造铅笔用的印字和裁断一体机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1561767B1 (de) * 1967-10-04 1972-07-06 Bayer Ag Schreibstift
DE4003289C2 (de) * 1990-02-04 2000-02-03 Staedtler Fa J S Schreib- oder Malstift mit einem Schaft aus einer Umhüllung aus blatt- oder folienförmigem Material und Verfahren zu dessen Herstellung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806249A (en) * 1944-06-09 1957-09-17 Burnie J Craig Apparatus for making a composition containing covered particles
US2546975A (en) * 1946-10-18 1951-04-03 Standard Telephones Cables Ltd Extrusion device
US2694349A (en) * 1949-06-25 1954-11-16 Crane Co Method for producing cement pipes
US2790202A (en) * 1952-03-31 1957-04-30 Lorenian Zareh Method and apparatus for manufacturing pencils
US2825091A (en) * 1954-08-06 1958-03-04 Jennings Machine Corp Wire coating apparatus
US2902754A (en) * 1955-07-07 1959-09-08 Lorenian Eugenia Manufacture of slidable-core pencils
US3765811A (en) * 1971-01-18 1973-10-16 Ikegai Iron Works Ltd Apparatus for manufacturing standard-length articles covered with plastic material
CN106696524A (zh) * 2016-11-17 2017-05-24 浙江晨浩文体用品有限公司 一种制造铅笔用的印字和裁断一体机
CN106696524B (zh) * 2016-11-17 2018-04-20 浙江晨浩文体用品有限公司 一种制造铅笔用的印字和裁断一体机

Also Published As

Publication number Publication date
BE346739A (enrdf_load_stackoverflow)
DE496017C (de) 1930-04-12
GB280597A (en) 1928-07-26
FR702870A (fr) 1931-04-18

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