US915130A

US915130A - Pencil.

Info

Publication number: US915130A
Application number: US43863608A
Authority: US
Inventors: John Vasicek
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-06-15
Filing date: 1908-06-15
Publication date: 1909-03-16
Anticipated expiration: 1926-03-16

Description

JQ VSIGEK.

PENCIL. A APPLICATION FILED mm: 1s, 190s.

Patelltd M31'. 16, 1909'.

JOHN VASICEK, O LAGRANGE, TEXAS.

PENCIL.

Specification of Letters Patent.

Patented March 16, 1909.

Application led. June 15, 1908. Serial No. 433,636.

To all whom it may concern.'

Be it known that 1, JoiiN ViisioEK, a citizen of the United States, residing at Lagrange, in the county of Fayette and State of Texas, have invented a new and useful Pencil, of which the following is a specification.

This invention relates to lead pencils and its object is to provide a simple and durable device of this character having adjustable means for holdinga lead so that the saine can be conveniently adjusted beyond the end of the body of the pencil whenever it becomes Worn or broken at the point.

Another object is to provide a device of this character the parts of which can be readily assembled.

With these and other objects in view the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of the invention.

ln said drawings: Figure 1 is a central longitudinal section through a pencil constructed in accordance with the present iinprovements, the stein being shown on an enarged scale with the middle portion removed. Fig. 2 is a section on line A-B, Fig. 1. Fig. 3 is a longitudinal section through the butt end of a modified form of pencn.

Referring to the figures by characters of reference, 1 designates a pencil body, the same being preferably reduced annularly at one end as indicated at 2. This body has a central cylindrical bore 3 at one side of which is arranged a h nigitudinal bore 4l communicating with the central bore 3 through a slot 5. An angular passage 6 is formedrilongt tudinally Within the body diainetrically opposits the bore 4 and'opens into the central ore 3. rlhis passage constitutes a guide way as hereinafter set forth. A conical cap 7 having a flange 8 at one end is arranged at one end of the' body 1 so that saidflange S will frictionally engage the reduced end 2 of the body:7 This cap has a central bbre E) designed to register with the central borcS and a socket 10 is formed within the cap and constitutes a bearing for a tiunnion 11 formed at one end of a feed screw 12, This feed screw extends longitudinally within and throughout the length ofthe bore 4 and is designed to rotate therein, there being trunnion v113 extending from the screw and journaled within a reduced opening 14 fori ned in the butt end of the pencil. A gear 15 is secured to the trunnioii 13 and meshes with a gear 16 foi-ined within a cap 17. This cap has a central stud 18 journaled within the middle portion of the butt end of the pencil.

The outer face of said cai ina be inilled'or j jaws are designed to fit upon opposite faces of the reduced end of a lead 24 the diameterof which is suoli as to permit the same to readily slide within the central bore 3. The reduced end of the lead is shaped preferably as indicated in Fig. 1 so as to permit jaws 22 and the extensions 23 to fit snugly thereupon.

When it is desired to feed the lead 24 outward through cap 7 the cap 1 7 is rotated and the gears will therefore cause the screw 12 to revolve and actuate the rack 20. Holder 19 will therefore be slid longitudinally within bore 3, it being held against rotation by the rack 2() and also by the guide head 21. Instead of providing the cap 17 and gears 15 and 16 a milled head 25 inay be connected to the neck 26 of a screw 27 as shown in Fig. 3. l/Vith the construction the butt end of the body 29 is preferably reduced as shown at 2S) so as to pei-init a guard cap 30 to be slid over the end of the body and thus conceal the head when not in use.

It is to be understood that a pencil such as herein described can be conveniently manufactured, it being designed to form the body of hard rubber or similar material which can be conveniently molded.

What is claimed is:

1. The combination with a body having parallel communicating bores therein; of a 'leed screw mounted to rotate in one of the bores, a rack engaged by the screw and mounted to slide within thc other bore, and a marker engaging device inovahle with the rack and within the last mentioned bore.

2. The 'combination with a body havingr a l parallel longitudinally communicating bores 2 2 .einden therein; of e holder slideble within one of the bores, e mok thereon, und e feed screw mounted to rotate within the other bore and engaging the rack.

3. The combination With e. body having parallel longitudinally communicating bores; of a holder mounted to slide Within one of the bores, a rack thereon, a feed screw mounted to rotate within the other bore and engaging the mok, and means upon one end of the body for rotating the screw.

4. The combination with e body having parallel communicating longitudinal bores, e oep detaolebly connected to one end of the body, a holder mounted to slide Within .one of the bores and into the oep, e reuk upon the holder7 and a feed screw in the other bore and engaging the rack.

5. The combination with e body having parallel communicating longitudinal bores, and e oep detaohably mounted upon one end of the body and having e bore oommunicetin with one of the longitudinal bores; of e ho der mounted to slide Within the lest mentioned longitudinal bore, a rack upon the holder, and a feed screw Within the other longitudinal bore and engaging the rech.

(i. The oombinetion with e body having parallel communicating longitudinal bores;

oi e holder mounted to slide within one oi k JOHN VASCEK. Vilitneeses:

Linn BALAS, J. L. HAmUsEK.