US1496031A - Pencil - Google Patents

Description

June 3 1924.

H. W. SIEMUND PENCIL Filed sept. 12 1921 BY \m A TTOR/VEYS Patented June 3, 1924. l

UNITED STATES HARRY W. SIEMUND, 0F CHICAGO, ILLINOIS.

PENCIL.

Application tiled September 12, 1921. Serial No. 590,068.

To all whom z't ma/ z/ concern:

Be it known that I, HARRY W. SIEMUND. a citizen of the United States, and a resident of Chicago, in the county of Cook and: State of Illinois, have invented a new and useful Improvement in Pencils, of which the following is a full, clear, and exact description.

My invention relates to pencll of that type of construction in which a plurallty of pieces of lead are held 1n reserve, and it consists in the combinations, constructions and arrangements herein described and claimed. l

A n object of my invention is to provlde a magazine pencil adapted -to hold a plurality of pieces of lead, each of which can be moved into position for use without being grasped by hand.

A further object of my 1nvent1on 1s to provide a pencil of the character describedl having means for indicating the particular lead in position for use at a given time.

Af further object of my invention 1s to provide a device of the character descrlbed in which means are provided for releasably holding a selected piece of lead in position for use.

A further object of my invention is to provide a device of the character descrlbed that is simple in construction, not likely to get out of order easily and thoroughly practical commercially.

Other objects and advantages will appear inthe following specification, and the novel features of the invention will be more particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings forming part of this application, in which- Figure 1 is a side elevation of a pencil embodying my invention,

Figure 2 is an enlarged central section through the pencil along the line 2-2 of Figure 3,

Figure 3 is a section along the line 3--3 of Figure 2,

Figure 4 is an elevation of a fragmentary portion of the device,

Figure 5 is an end view of a the device shown in Figure 4, an l Figure 6 is an enlarged elevation of another fragmentary portion ofthe pencil.

- In carrying out my invention, I provide portion of a cylindrical body 1 that is conventional in form and is tapered at its lower end as indicated at 2. The body 1 is fashioned with an axial bore 3 extending the entire length thereof. This bore is formed for part of its length to provide a plurality of radially disposed chambers 4, each of which extends longitudinally of the bore and is in open communication therewith,.as clearly shownv in the drawings. The body l is threaded interiorly below the lower ends of the chambers 4, as at 5 for engagement with threads 6 of a lead holding barrel or sleeve 7 which is arranged to extend the entire length of the body and to protrude above the upper end thereof, the protruding portion 8 being relatively large diametrically. The barrel 7 is provided with a slot 9 through its wall extending longitudinally thereof from the lower end of the enlarged portion 8 to the lower end of the chambers 4. The slot 9 has a Width equal to the distance between opposite walls of each chamber 4 at the points of juncture of the latter with the bore 3.

The barrel 7 is open at both the upper and lower ends thereof and is formed with a plurality of slits 10 extending longitudinally from the lower end thereof for a short distance, thereby definin a plurality of gripping fingers l1. The atter will be moved inwardly when the barrel 7 is turned within the bore of the body 1 to occasion an axial movement of the barrel along a tapering lower portion of the bore toward the lower end of the body. A piece of lead 12 disposed within the barrel 7 and arranged to depend below the lower end thereof will thereby be gripped by the lingers 11.3and held in adjusted position.

The body 1 is formed with an annular rib 13 adjacent to its upper end and a ring 14 revoluble on the body is maintained thereon by the engagement of this rib with an annular groove 15 in the inner wall of the ring. The ring 14 extends beyond the upper end of the body 1 and the upper end thereof is received within an annular groove 16 in the lower end of an adjust.- ing cap 17. The latter has a threaded central socket 18 adapted to receive the enlarged ortion 8 of the barrel 7 which is screw threaded for engagement therewith. The cap 17 has marked thereon an arrow 19 and is adjusted on the barrel 7 so that I' the arrow 19 indicates the position of the l slidabl slot 9.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. A piece of supply lead may be placed .in each of the chambers 4. The body 1 is marked adjacent to the ring 14 with suit-able characters to indicate the location of the several chambers 4, and if desired, to indicate the character of the supply lead that is to be placed in each chamber. The ring 14 is provided with an index arrow 20. The body 1 is grasped in one hand and the cap 17 is then turned until `the slot 9 of the lead holding barrel 7 has been moved into registry with the opening of the chamber containing the selected lead. The body 1 is then tilted from a vertical position and turned so that the selected chamber will be uppermost, whereupon the selected lead will fall into' the bore of the barrel 7. When the body 1 is then held perpendicular, the selected lead will move in the bore of the barrel 7 until t e lower end thereof protrudes below the end of the barrel. The length ot' the protruding portion of the lead is then adjusted as desired and the cap 17 is then turned relatively to the body portion to cause the gripping fingers 11 to engage the selected lead, whereby the latter will be held firmly in position for use. lt is to be observed at this point that the ring 14 is rotated until the arrow 20 indicates the chamber from which the lead is transferred into the barrel 7. This is done prior to the transfer of the lead. Consequently, the arroW 20 will indicate the position of the slot 9 as well as the position of the empty chamber at the time the lead is moved into position in the barrel 7 in the manner described and before the cap 17 has been turned relatively to the body l to cause the lead in the barrel to be gripped. The lead in the barrel 7 may be returned to the empty chamber at will and the several pieces of supply lead may be used selectively.

The pencil is particularly well adapted for use by artists and draftsmen who have `frequent occasion to use leads of varying degrees of hardness.

It will be observed that the body 1 in the form of device illustrated is formed of two axially alined connected sections, one of which constitutes a tip enlarged inwardly at its extremity, as shown.

I claim:

1. A pencil comprising a cylindrical body tapered at one end and provided with a central bore having a plurality ofchambers formed `in its Wallto extend longitudinally thereof from its upper end for part of its length. and being threaded interiorly below the lower ends of the chamber, and a lead holding barrel having a slot through its VWalls extending longitudinally thereof for a distance approximately equal to the length of said chambers, said barrel being threaded eXteriorly for part of its length for engagement .With the bore of said body and being provided with grippingr lingers at its lower end, whereby the lingers are moved into engagement with alead disposed in the barrel when the latter is turned to occasion a movement thereof axially toward the lower end ofthe body. x

2. A pencil of the character described comprising a cylindrical body tapered at one end and provided' with a.- central bore therethrough having a plurality of radially disposed chambers formed in its wall to extend longitudinally for part of its length, said body member being provided with an annular liange on its outer wall adjacent the upper end thereof, a sleeve fashioned with an annular groove on its inner wall adjacent the lower end thereof and arranged to rotatably engage with the flange on said body member, ya cap secured to said sleeve at the upper end thereof, a lead holding barrel having a slot throu h its walls extending longitudinally thereof` for a distance approximately equal to the lengt-h of said. chambers, `and ,means associated with said lead holding barrel for gripping the lead contained therein, said barrel being arranged to move into registration with said chambers selectively by rotation of sai-d cap.

3. In a pencil of the character described,

a body member tapered at one end and provided with a. central bore therethrough, said HARRY w. SIEMUND.

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