US936722A

US936722A - Pencil-making machine.

Info

Publication number: US936722A
Application number: US42033008A
Authority: US
Inventors: Riley H Howard
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-03-11
Filing date: 1908-03-11
Publication date: 1909-10-12
Anticipated expiration: 1926-10-12

Description

(Itter/nua:

R. H. HOWARD. PENCIL` MAKING MACHINE. APPLICATIONl FILED MAR .1I,1908.

wit" uns B1. H. HOWARD. "PENCIL MAKING "MACHINEl A PPLIOATI'ON FILED MAR.11,1908.

\ Patented Oct. 12, 1909.

2 SHEETS-SHEET 2.

n. m a

. which the lead of pencils is covered with v market.

l forth. description,

machine.

- State of and useful 'Pencil-Making Machine; and I to which ,it appertains to makeV and use the same tlme the lead for the pencils is formed,

., UNITED STATES "PATENT oFFIcE.

' RILEY H. HOWARD, or RIVERSIDE, CALIFORNIA.

Panam-MAKING MACHINE.

application mea March 11,

To all whom it may' concern: y Be it known that I, RILEY HOWARD, a citizen of the United States, residing at Riverside,`in the county of Riverside and California, have invented a -new do hereby declare thefollowing to clear, and exact description of the such as will enable others skilled be a full, invention, in the art same. l i

This invention pertains to a new ful pencil making machine, and the invention in its broadest latitude creates an eilicient and novel device of this nature, by

and usepaper pulp or other plastic material, at the as will be hereinafter set forth.

The lead, or. graphite or other material for forming the core of pencils and the covering therefor, are formed in.y one substantially continuous length, and'afterward cut. in pencil lengths, that is after'tlie pencils are pressed and finished for placement on the 1A further object of the invention, consists in the processof forming the lead for pe n cils andthe covering therefor, simultaneously' and automatically, as will be clearly manifest.

The invention comprises further ob'ects and combinations of elements, which wi l be hereinafter more fully described, shown, in the accompanying drawings, .andthe novel features thereof will be pointed out by the appendedclaims. j To obtain afull and correct understanding of the details of construction, combination of features, elements yand advantages, reference is to be had to thel hereinafter set and the" accompanying, drawings 1n connection therewith, wherein- Figure 1 is a side elevation of the pencil making machine, showing the same supported by an elongated table. Fig. 2 is a sectional view. through the Fig. 3`is a section `View on`,l ine 3-3 of'F-ig. 2-,`clearly villustrating a plural,- ity of iead forming tubes andA their tapering nozzles. Fig. Llis an enlarged detail s ec-v tional view of one of the lead forming tubes, shown in conjunction with one of the tapering apertures for forming the paper pulp around the lead, for formin a complete pencil. Fig. 5 is a detail sectlonal viewA of Specification of Letters Patent.

lencil making Y a the removal of the said A `low the chambers or presses to be cleaned.

-for accomplishing f or alternately allowvof pencils, as they emerge from the machine;

the sald trays have their adjacent edges v beveled, as shown at 5, so as toallow of cut- `ting the pencils in pencil lengths, by means of a cutting machine (not shown), as will lbe clearly manifest. l

@The trays are moved betweenv the flanges by the rollers 6, which are rotated by means of a pitman rod 7, which is connected between one of the piston rods 8 and the disk 9, carried by the shaft of one of thevrollers, as will be clearly seen in'Fig. 2 of the drawings.` The paper pulp or other plastic material and lead is to be of the proper consistency so as to be readily formedv into pencils.

Positioned above the table and at one end` thereo so as to leaveca space therebetween,

through lwhich the "trays move, are the presses or chambers 10, in which the lead or graphite and the pa. er pulp or other plastic material lis placed, for the purpose of being compressed by the pistons 11, which reciprocatetherein, so as to force the same through, thelead forming tubes 12 and the tapering apertures 13, which operation causes the pencils to be formed. lAs the pene presses or chambers,.

cils emerge froml th they arel deposited trays, which move tween the chambers clearly evident.

The pistons and their tice,are to be constructed so .as to allo\w,of

pistons,so as to-alautomatically upon the through the'lv space beand the table, as will be In the drawings, one form of construction the above" object is ,shown at'14, but other forms, within the scope of the claims maybe adopted, as will beclearly manifest. The speed of the pistons is to be regulated -so as tocoincide with the move' Patented oct. 12,1909. 1908. Serial N0. 420,330.

enter the ends of the piston` rods, in prac- 30 tional pistons pressed air is 35l 4and enters 40 provided served. After the `continuous lengths of pencil are formed," they are passed through rollers, (not shown) which will compressand polish them, after which they are in a condition to be cut in pencil lengths; in manufacturingpencils by this machine, the pulp is to be mixed with suitable color and sizing or cement, as mayY be desired, so as to provide pro er consistency.

T e lead forming tubes are provided with removable nozzles 15, so as to allow dierent sized nozzles to be connected to thel tubes; this i's for the purpose of manufacturing various sizes of pencils. rlhese nozzles are connected to said tubes lby `means of threaded connections, as shown at 16; the said nozzles are positioned in close proximity to the tapering apertures 13, which are formed in the removable plate 17 whichfis secured to the side of the chambers or presses bymeans of screws or other suitable means 18, so as to allow the plastic material to readilyforin about the lead 'or ,graphite core, as will be clearly understood.

The piston rods 8 are provided with addi- 19, which are operable within the piston cylinders 20, intoy which comforced, so as to reciprocate The' compressed air is supany suitable source, (not shown)- the cylinders throughthe pipes 21, as indicated by the arrows, which pipes f 21 communicate with the branch pipes 22,

as clearly shown; at the junction of the pipes 2l and 22, oscillating valves 24 are which allow compressed air to act upon one face and then the other, ofthe said pistons 19, so-as to impart reciprocatory said pistons. plied from l movements thereto. Thesevalves may be operated by hand or other suitable means, but as shown said valves are o erated by the piston rods 8, through the me ium of a'connection therebetween, as at 23, as clearly illustrated in the drawings.

From the fore oing, the; essential .fea-

1 50 tures, elements an the operation of the de.

vice, gether with .the simplicity thereof,

will be clearly apparent.

Having thus describedthe invention, what is claimed as new and useful by the protec-v '55 non of Letters Patent, is:-

1.' In a pencil making machine, a table having flanges, al casing 4comprising two chambers dis osed above the table vleaving a space there etween, one of said chambers designed to contain plastic material` while esmas the other chamber contains lead or graphite, the chamber containing the graphite having a plurality of pencil lead forming tubes projectin therefrom and through the plastic material of the other chamber, said chamber' containing the plastic material-having la lurality of tapering apertures -through w 'ch the plastic material is forced so as to form a covering for the pencil lead, said pencil -lead forming tubes havin their mouths of their end portions dispose within said aper tures, said apertures and said end portions yof the said tubes having spaces therebetween,

so as to allow the plastic material to emerge therefrom and about the pencil lead, a plurality of -trays movable upon the table between said ianges and through said space so as' to receive the pencils, rollers to coperate with the trays, pistons having rods to act upon the lead or graphite and the plastic material, and means actuated by said rods to actuate said rollers so as to move the trays.'

2. In a pencil making machine, having flanges, a .casing comprising two 'fol a table I chambers disposed above the table leaving a space therebetween, one of said chambers designed to contain plastic material while the other chamber contains lead or graphite, the `chamber containing the graphite having a plurality of pencil lead forming' tubes projecting therefrom and through the plastic y material ofthe other chamber, said chamber containing the `plastic material having a plurality of tapering apertures through which the plastic material is forced so as to form a covering for the pencil lead, said pencil lead 'forming tubes having removable nozzles having their mouths disposed within said apertures, the chamber containing the plastic material having a support for said pencil lead forming tubes, sai apertures and the said nozzles having spaces therebetween,

so as to allow the plastic material to emerge therefrom and about the pencil lead, a plu rali'ty of trays movable upon tween said flanges and throu h said space so as to receive the pencils, ro 1ers to coprerate with the trays, pistons having lrods to act uponthe lead or graphite and the'plastic material, and means actuated by said rods to actua-te said rollers so as to move the trays. v

In testimony whereof I have signed my name tb this specification in the presence of two subscribing witnesses.

RILEY H. HOWARD. litnesses PRIESTLY'HALL', AGNES O. HAnL.

the table be-