Патент USA US2119410код для вставки
May 31, 1938. ` H1 JQALTER REFILLABLE PENCIL Filed Sept. 16,' 1936 1 2,119,410 2,119,410> Patented May 31, 1938 ì UNITEDv STATES PATENT -OFFICE . 2,119,410 mir‘rLLAisLr:` PENCIL Horace J’. Alter, Brooklyn, N. vY. Application September 16, 1936, Serial No. 101,150 3 Claims. (C1. 1Z0-_21) to receive a receptacle 4 of substantially tubular' shape having a flange 5 to abut the end of the ject ~vthe provision of avdevice of this character body. The receptacle 4 is employed to receive a wherein the body thereof is approximately the -draftsman’s prick point 6 either end of which This invention relates to refillable draftsman’s or artist’s pencils and has for the primary ob 5 Asame length as that> of an ordinary pencil and has a portion preferably of hexagonal shape to permit the body to be readily grasped for use and is located adjacent the Writing end of the body while the remaining portion of the body tapers 10 and is of cylindrical shape so that when the pencil is in use a low center of gravity will be 'had and adjacent the writing end, which so bal ances a pencil as to relieve holding strains. may be conñned within the receptacle or holder- 5 while the other end is exposed for use. While the receptacle 4 is shown and described as being fitted in thev recessed end of the body I it is to `be understood that the receptacle by increasing the size of the bore at one end may be ñtted over 10 the end of the body. The hexagonal end 3 of the body besides pro viding an efficient grip for the body also provides a low center of gravity to the pencil in'entirety, Another object of the invention is the provision 15 of a holding receptacle secured to the non-writ ' that is, bringing the center of gravity closer to the 15 ing end of the body for removably attaching to writing end of the pencil whereby the pencil may said body a draftsman’s prick point, either end be more easily balanced when in use. The hexag of which may be easily brcught into position for . anal-shaped end of the body is recessed and in use while the other end is fully protected. ternally threaded to receive an exteriorly thread 20 A further object of this invention is the pro ed stud or plug 8 which has threaded thereon a 20 vision of an improved chuck carried by'the body retainer nut or sleeve 9. 'I'he sleeve or nut 9 has wherein the lead will be engaged, and gripped threaded therein a chuck IIl including an outer over a larger portion thereof than heretofore tapered portion II threaded to the nut or sleeve 9 andcontacting a reduced extension I2 formed lpossible in similarly constructed pencils to pre 2 vent highly localized stress on the lead. on the stud or plug 9. Operating within the 25 outer tapered >portion II are elongated jaws I3 With these and other objects in view, this in vention consists in certain novel features of con preferably three in number which engage with a » struction, combination and arrangement of parts lead I4 for a substantialv distance, the lead ex to be hereinafter more fully described and tending into> the bore 2 by way of a bore I5 formed in the stud 8. The jaws taper‘towards 30 their free ends to correspond with the taper of the outer tapered portion I I of the chuck so that saidjaws will evenly contact with the lead sub stantially throughout their entire length. This construction of chuck provides maximum contact 35 30 claimed. » For a complete .understanding of my invention, reference is to be had to the following description and accompanying drawing, in’which Figure 1 is a side elevation illustrating a re 35 ñllable pencil constructed in accordance with my ‘_ of the chuck with the lead and eliminates highly invention. l ' Figure 2 is a vertical sectional view illustrating the same. ' Figure 3 is a fragmentary vertical sectional ‘l0 view showing the prick point holder secured to the body with the point in operative position. Figure 4 is a sectional view taken on the line 4--4 of Figure 2. \ Figure 5 is a fragmentary vertical sectiona 45 View illustrating a modified form of my inven tion. ‘ . localized'stress on the lead, consequently reduc ing the chances of breaking the lead to a mini mum still efficiently securing the lead against slippage. \ denote different grades of lead, permitting a per- ` son at a glance to determine what grade of lead is in -the pencil regardless of the position of the pencil. _ ’ ' ' 45 Referring to the modified form of invention the hexagonal end 3 of the body I has formed Referring in detail to the drawing, the numeral I indicates the body of the pencil having a bore thereon a reduced extension I1 tapered, as shown 2 and is constructed from some suitable compo at I8, and has the bore I5 extending there 50 sition of material. The body I adjacent the writ - through. A retaining nut or sleeve I9 is threaded ing end of the pencil is preferably of hexagonal on the extension and has an inner annular shoul shape, as shown at 3, to permit the body to be der 20. A chuck 2l is threaded into the nut or readily grasped and the body from the hexagonal shape towards the non-Writing end tapersy and i is of cylindrical shape and has its end recessed 40 Colored bands I6 may be applied` to the body to 0 sleeve I9 and includes the tapered jaws 22, the inner ends of which are shouldered, as shown at 23, to ride on the shoulder 20 and he~ located 55 2 2,119,410 adjacent the end of the reduced extension l1. The outer ends of the jaws are internally knurled, as shown at 24. The chuck 2| includes the outer tapered sleeve-like portion 25 for effecting op eration of the jaws into gripping the lead. Having described the invention, I claim: 1. A reñllable pencil comprising a body having a bore, a stud having a bore carried by said body, said bores adapted to receive a lead, a retaining 10 nut threaded on said stud, a chuck sleeve thread ed into said nut, elongated tapered jaws arranged in the sleeve to grip the lead. > 2. A reñllable pencil comprising a body having a bore, a stud having a bore threaded to said ~15 body, said bores adapted to receive a lead, a re taining nut threaded on said stud, a chuck sleeve threaded into said nut, elongated tapered jaws arranged in the sleeve to grip the lead, an ex tension formed on the stud to abut the jaws, and a shoulder formed in the chuck sleeve and engaging the extension. ‘ 5 3. A reñllable pencil comprising a body having a bore and provided with a reduced screw thread ed end with the bore extending therethrough to receive a lead, a retaining nut threaded on the extension, and an internal shoulder formed in 10 the nut, a chuck sleeve threaded in the nut, elongated tapering jaws arranged in the sleeve to engage with the lead and having shouldered ends engaging with said ñrst shoulder. HORACE J. ALTER.