US2378973A - Pencil - Google Patents

Description

and the accompanying drawing, in which Patented June 26, 1945 PENCIL i Morris Borsod, New `York,`N. Y, Application January 19,1944, Serial No. 519,079`

This invention relates to pencils and has to `do more particularly with that type` wherein leads are clamped in a permanent holder which as usually constructed has a clamping member, non-` removably iixed thereto, in the nature of fa clamping chuck, embodying screw threaded parts co operating with a split sleeve to clamp the lead, and such clamps are centrally disposed to clamp the lead axially of the holder. In the present invention, a removable clamping member is pro-` vided arranged to slide into the holder and the lead is clamped in an offset position with relation to the axis of the holder the latter in the form of a plain tube. And the invention further consists of the novel combination of parts preferably constructed of any Asuitable material such as `a` highgrade bre board, especially the clamping member of the device, which is arranged as a removable part that is slipped out of the `holder to insert or adjust the leads therein and` replaced in the 3 claims.` romeo-r9),

Fig. 1 is a perspective view of my'improved` shown insectionand partly broken away.`

holder in a most convenient manner while applyi ing a light pressure on the clamping member to hold the adjusted position, which pressure is the tube that may vary to suit Vposition in the clamping member before entering thesame into the holder, by which through a leverage, action of the clamping member a pres` sure is applied to the clamp by the fingers to hold the lead so clamped along the full lengththereof, except the exposed writing end andthe pressure increased when sliding the clamp into the holder.

A further object of the invention, by the con` struction herein shown, all the component parts of the device, except the lead, may be fabricated from-,ber-board by use of different thicknesses of the material, the clamping member being re- `inforced at parts thereof by cementing two layers i together,` andthe holder formed froma thinner sheet for rolling to form asubstantially sti' tube.

A still further object of the device relates to the offset position of the lead-clamping seat with relation to the axis of the tube holder, which provides a lclear view when writing. i i

Fig. Liis a detailjview of a number of strips'of 'assembled'iiber-board, from which the clamp is cut` after having Vbeen grooved and` cemented together inlong strips. e

5 isa plan View of the prepared strip and showing in dotted lineshow the clamp member is cut from the strip and later folded to form the `clamp member. i

HFig. 6 is across sectional view of a modified form of the clamp shown in the holder, con

structed fromeaI single sheet of liber-board folded as shown. e e l l e Fig.` 7 is a cross sectional view of a modied form ,of the clamp member, made from a single increased as the clamping memberis inserted 1. Sheetofimetaland in position in a metal tube? e Fig, `8 is a view of` the clamping devicein the holder and shows1 the position of the device when inuse.

" As shown my improved pencil is designed to meet the general requirements of this art, that isjtofproduce an inexpensive or a more elaborate article, retaining however the principal features surface ofwhich it may be 4printed before ,same isrlled to sizeand the end lap cemented to formlthe tube. e e i In Fig. l, I showhowthe pencil will appear in any of the forms of constructionrherein shown. The `tube which forms the holder, indicated by 2, may be rolled from suitable'paper stock or fiber `board to the dameterbest suited by the number of convolutions to form the thickness of the wall and the endlap, 2', `cemented in any The invention will be better understood with A other objects thereof disclosed in the following description, forming a part of this specification.

well known manner, andthis end lap before the tube `isfrolled, vup may contain printed matter thereon as shown. 'I'he tubular holder 2,v prefer-A ably` somewhat the usual `size of the standard pencil, provides` a sizeable opening 3 throughoutl itsIength. 'Ihe holder mam-of course, be constructed of metal or a plastic, material,as an integraltube.

The clamping member 4 as indicated in Figs. 2 and` 3, on. a largerscale, shows this member con--` structed of fiber-board of suitable thickness in in Figs. 2 and 3, the outer wall of the circular part of the clamp engages theq inner wall of the another feature, sinc the lead is offset from the axis of the holder, the user has a clear View of the writing point as shown in Fig. 8.

Having described my invention, I claim:

l.` In a pencil of the, type described, the combination including a tubular holder, a removable lead clamping member arranged' to slide into the open end of the tube holder to engage the inner wall thereof, said clamp member formed of builttube at the top while the depending arms 'l reach` l0 UP layers 0f ber-bard jhed together 150 1@- downward to the opposite side of they tube topro-` vide room at the ends thereof for two'V reinforcing' members 8, which are cementedto the inner faces:

of the depending portions l, to reinforce the same,

inforce the same 'and to form in cross section when folded1 and in position in the tube for one part thereof in a single layer portion, to form a circular bend appearing in cross section'wof said and the edges 9 of the parts 8 are accuratelyl paf-liti llhe` full length thereof, the PSX Of Which placed to conform tothe circular formation of the single layer to thereby increase this circulargrip around the lead. The: free ends I of the rei-n forcing members are bent tor extend in opposite directions and are of a lengthto` yieldingly engage when within the tube holder 2 about as shown., tof l' engage the center of, thetube as indicated at H. The: depending arms l and reinforcing membersy 8` thereof act like levers to. close the circular part for which a space IZ between the levers is providedto grip on the lead both when sliding. the clamp member intoV the. tube tothe proper position required', and before entering the, tube, the lead may be adjusted in the clamp member, and this. adjustment maintained by slightly pinching the levers together and this pressure is increased by the tube, as the clamp member is. gently moved therein. y

Figsi and show how the clamping member forms the seat in which said lead is seated,` the outer part of` said circular bend' engaging the is constructed.v A strip i3 is first. cut to proper 35 width and the circular groove forming the lead seat is rolled therein, then the reinforced por- I member -is then ready to be trimmed on the' broken lines indicated at I3, which is then folded and the trimmed edges will conform to the shape shownin Fig. 3.v

In 6, I show the: clamping member folded from. a singley sheet' of lilm-board'of suitable thickness, which is folded as. shown in any well known manner in. long length pieces. over a folding rack, after creasing the paperon. the lines as required, then trimmed to the same shape at the endsv toA formand length and shape. y

In Fig. 7, I show;the clamp member asv constructed of a ,thinmetal, which need notv be reinforced, the usual practice of forming a blank of the proper shape, `which is readily punched, then bending to the formshown, in bendingV dies. This metal type of the device, may .be in the class of the more expensive type of pencil, highly finished inmany different styles.

All the forms` herein shown have the following advantages over the types of clamps generally used to hold and clamp thelead.. In my improved clamping ymember one of these advantages is, the holder tube 2 is plain, no fittings of threaded parts'are required of: anykind. since the clamp,

ing member 4 slides into the open tube to engage the inner wall thereof and the clamp member is readily removed, and the lead is then free to be moved, toa `new position, sincethe depending lever inner wall of the; tube to be offset from the axis ofthe tube, downward reachingv portions each side of said circular part and extending toward' the opposi-te: side of the tube, formi-ng lever portions, said lead', and hold' the clamp member in any adjusted position thereof in theI holder.

2. In a pencil device of thetype described, the l combination including a tubular holderVa lead clamping member arrangedY to 'slide into said holder to engage, theV inner' Wall thereof,`said nlernb-erA formed of builtup layers of flberl-board joined together'v to reinforce same, to form in a singlelfayer portion thereof as viewed incross secti'orfwhen folded and ina clamped position within the tube where one part'thelreof, in a single layer portion, is bent to form a circular seat, the

" outer face 4of which engages the inner wall of the tube, downward extending portionsk of said circular layer part forming lever portionsY reaching downward to the opposite side of the tube; said levers reinforced on Ithe inner sides thereof,

so the-edges thereof conform to saidv circular seat the 'full length of' the clamping member and so retained by a `closing clamping action applied -by oppositely- -bent over-hangingv portions of' said reinforced parts `the free` ends of which engage the contour of the tube inner wall at each. Side to' urge the lever portions together under a yield-l ing actionl of both the tube and the clamp.

. 3. In a pencil of` the, type described, the combinationincluding a tubular holder, a removable lead clamping member arranged to slide intothe open endof the holder to engage. the inner Wall thereof, said clamp member formed of a single sheet of material of a length suitable to provide a sliding action-in the holder and support the lead in, a clamped position in a circular bent part to lap, around the lead the greater part thereof, the outer surfacel of saidv circular part whenin the holder engaging the inner wall, arms extending fronisaid; circular part forming levers sepal rated to providek a space between the same, the

free ends bent in opposite directions to yeldingly engage the inner wall of the holder-at the sides opposite said circularV part, whereby on entering the holder tube a pressure is applied to close said circular .part to clamp the lead and hold the clamp member in any adjusted position within the holder.

MORRIS BORSODI;

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