US1332091A - Pencil-pointer - Google Patents

Description

W. E. ABBOTT.

PENCIL POINTER.

APPLICATION FILED MAY 29. 1919.

1,332,091, Patented Feb. 24,1920.

WITNESSES INVE/V TOR ATTORNEYS v elements which are adapted to be readily in-.

ment and combination of parts hereinafter UNITED STATES PATENT OFFICE WILLIAM EDGAR ABBOTT,

or BEND, OREGON, ASSIGNOB or ONE-HALF '10 LEE A. THOMAS, 015 BEN-D, OREGON. V

V PENCIL-POINTER.

To allwhom it'mag "cmmn;

Be it known that I, WILLIAM EDGAR AB- Bo'r'r, a citizen of the UnitedStates, anda' resident of the city of 'Bend,"inthe county of Deschutes and State of Oregon, have invented a new and Improved Pencil-Pointer, of which the following is a full, clear, and exact description. V j Y b T hisinvention relates toarticles of stationeryand has particular referenceto pencil pointers and paper weights.

. Among the objects of the invention is to provide an implement adapted especially for use by draftsmen. architects, engineers, or others who desire to use pencils with long slender points and whi'chare required to be repointed fromtime totime in order to keep the points slender and. sharp. 1

Another ob'ect f the invention is to pro vide an implement adaptedfor the-pointing of a pencilwith one hand only while the other hand may" be engaged in holding a ruler,.T-square,. or other devices. Conses que'ntlv the implement is preferably made of sufficient weight not only for the purposeofholding it in place while the pencll is being pointed with the use ofone hand only but it also adapts it for use as a 'paper .weight. p H A further object of the invention 1s to provide a special construction of abrasive terchanged or 'adjustedafterthey have become worn and no longer functional.

NVith theforeg'oing and other objects in view the'invention consists in the arrange.-

described and 'claimed, and while the invention isnot restricted to the exact details of construction disclosed or. suggested herein,

.3 still forthe purpose of illustrating apractical embodiment thereof reference is {had to the accompanying drawings in which like reference characters designate the same parts in the several views, and in which I Figure 1 is a vertical longitudinal section on the line 11 of Fig. 2.

' Fig.2 is a plan view.

Fig. 3 is an end view. Fig. 4 is avertical transverse section on the line44 of Fig. 1; and Fig 5 isan enlarged longitudinalsection of the actuator and parts associated'therewith. p 1

Referring now -more specifically to the Specification of Letters Patent. Patented Feb. 24, 1920;; i Application filed May 29, 1919. Serial No. 300,498. it I i drawings I show myimproveddevice as comprising a substantially hollow -rectangularbody or casing having a bottom 10, vertical parallel ends 11, and side walls 12 which ar'e vertical except at their upper ends where they are'deflected inward toward each other at 12. Each end wallis provided with a vertical central slot'13 on opposite sides of whichv the end wall extends upward forming are shaped lobes or projections 14 and 15. The deflected portions'12' of the sidesmerge into and constitute integral parts of the lobes 14 and 15" making a very strong rigid structure with a minimum weight of material which may be of-any suitable character such as sheet metal or its equivalent. The two ends of the device are similar or'sylnmetrical throughout so that a specific description of either end will be undeastood' as being applicable to the other The lobe 14'is provided with a short horizo'ntal slot 16 the center of which is concentrio with the curved portion of the lobe, and

ledge 18 having two concave end portions each concentric with the pintle or slot. This ledge maybe formed as an integral part of the wall or it may be fastened thereto in any suitable manner.

19 indicates twocylindri'cal rollers made preferably exactly alike and interchange able. These; rollers may be *made of any suitable abrasivematerial or of any other kind of material faced of coated with sandpaper, carborundum, or other abrasive substance. In one end of a" roller 1s-formed a round bearing 20 adapted to receive the pintle 17 while the other end of the roller isprovided with-a square or. th nal' socket 21. I v 1 I e g W h the polygonal socket 21 connection with the socket and adjacent to which is" around portion 23 Then comes a,

V is an actuator 22 comprising a gudgeon 23 having'a polygonal end '23 having direct vwall and so retain the polygonal end '23 in the socket 21 andthe round portion 23 of the gudgeon in the slot 16. The hole 27 in which the gudgeon is journaled in the upper I end of the spring is smooth and consequently the actuator may be rotated directly at any. time to rotate'either roller and in 1 fact the rotation. of either roller will ordinarily rotate both because of the frictional enga ement between the two rollers. j I

- W ile one end of the rollerv is held from lateral movement by the journaling-of-the I pintle '17 in the round hole 20, the other end is adapted to move freely within a certain limit away from the otherroller against the forceof a spring shown as a coil spring 28 anchored at one end at 29 within the casing adjacent to the remoteside Wall 12, while the other end of the spring is connected to a lug, loop, or other device 30 extending inward from the spring through a slot 31. This spring is contractile and tends to hold the connected end of the roller against the other. roller. Since each roller is'provided with a spring'serving to hold one end of the roller resilientlv againstthe adjacent end of the otherroller which'is relatively immovable laterally itrnay be stated that both rollers are movable toward and from each other. The line of contact between the two rollers lies in a'vertical plane tan gent to both of them andcoincident with the i slots 13formed in the end walls 11, In inserting the rollers each ofthem is first introducedwith its endhaving the round hole intoplace receiving the pintle 17 and then the other end is dropped into place until; it

' rests upon the ledge 18.. the actuator being withdrawn against the force ofthe spring for this purpose and after the roller is in place the polygonal end of the trunnion of t e: actuator springs into the socket 21.

Thus the roller is locked in place and held from .accidental removal. The spring 25 holds the trunnion in its socket. and the sprin 28 acts'constantlv t draw Spring 25 and actuator toward the'adiacent roller so that by these means both rollers are held in close contact with each other resiliently.

In the usevof the implement inthe pointing of a pencil. the bared oriexnosed point of 'the pencil is thrust down, between the rollersat any su table an 'le sav forexample 45 decrees and the the draftsman will draw thepe cilalong-fhe slot or ioint betwe n the rollersin a Idirection, awav from the point. giving it a turn orspin between. his

ing used with one hand. only.

Theinterior of the casing may be filled to thumb and fingers in so doing. Thus the abrasive rollers will reduce the lead of the pencil point to the desired size and at the same time the point will be suitably sharpened uniformly and symmetrically. The

between the rollers tlie'more the lead will be thinned remote from the extremepoint. The rollers may or may not rotate during this pointing of the pencil. Ordinarily however they will not rotatethere beinga relativelyv slight amount of forceapplied to them to cause such rotation. When the 'engaging portions of therollers-become foul or worn because of the sharpening or=p0int5 ing action thereon either or'both of them may be rotated by grasping and. turning either of the inilled knobs 24, thus. presentdeeper the pencil point isthrustidownward ingfresh contact surfacesfor further use.

When the rollers become worn or foul and needreplacing they are easilyreinoved bysimply withdrawing the gudgeon 23 from.

the end having the socket 21 permitting the, rollers to be lifted out and others put in their places. The rollers obviouslymay be manufactured and sold as cheap articles of manufacture independent of the casing or apparatus as a whole.

.' The bottom 10iofthe casing may be faced,

with a layer of felt, rubber, or other-device indicatedat 32, to prevent the marring of the deskas well as to reduce the likelihood of the slipping of the device when it ijsfbe any desired elevation-with'l'ad 33 or other heavy material so as to serve to hold the'de-.

vice in place in connection with the fricadapt the ims; i

tional surface 32 and to better plem t s a paper Weight.

1. In a device combination ofia 'hollow casing having parallel end walls each terminating at its: free edge in a pair of lobes, one lobe having a slot formed in its center parallel tothebottornpf thecasing, a pintle fitted in the other lobe at the same distance fromthebottom of the of the class set forth, the:

casing as said slot. a pair of abrasive cylin:

ders, one iournaled upon said pintleand' the 11$ other having a polygonal so ket registering with the slot, an actuator projecting th ro1 1gliv the slot and into the socket tocontrol the posit ion and rotation of the cylinder, andresil ent meansv acting. to hold the rollers in closecontact with each other.

- 2. Ins-a pencilpointenthe combination of .a support, a-pair of abrasivefmembers'sup ported in close contact witheachother in said support, one of said membersbeing a cylinder and said members being movable relativelytoward and from each. other, a

gudgeon .fitted'removably in oneend of the cylinder, means torotate the gudgeonand I cylinder, a spring member tending to hold the gudgeon from movement endwise from the cylinder, another spring member acting upon the first mentioned spring member to hold the adjacent end of the cylinder against the other abrasive member, and means to prevent the cylinder from dropping down when the gudgeon is withdrawn therefrom.

3. In a pencil pointer,'the combination of a pair of abrasive members, means to support said members for rotation, means to resiliently hold the members in close contact with each other permitting relative movement be.- tween them, means to rotate either of the members and thereby cause the rotation of the other member, said rotating means including a gudgeon having a polygonal end fitted removably into a similarly shaped socket in the member, a leaf spring acting upon the gudgeon to hold it from endwise movement from the socket, and a spring attached to the leaf spring and acting thereon in a direction at right angles to the actlon of v the leaf spring and tending to hold the gudgeon and its abrasive member in close contact with the other abrasive member.

4-. In a device of the class set forth, the combination of a hollow casing having ver-' tical end walls each terminating at its upper edge in a pair of lobes, one lobe having a horizontal slot formed in'its center of curvature, a pintlefitted in the center of theother lobe on the same level as the :slot, a ledge formed on the inner surface of said wall be, low and concentric to the slot and pintle, a

pair of abrasive cylinders, one fitted upon said pintle and the other having a polygonal socket registering with the slot, an actuator projecting through the slot and into the 7 socket to control the position and rotation of the cylinder, and resilient means acting to hold the cylinders in close contact with each other.

5. In a pencil pointer, the combination of a support, a pair of abrasive cylinders supported in close contact with each'other in the upper portion of the support, one end of each'cylinder being heldfrom lateral move-' and means to prevent the dropping down of either cylinderrwhen the gudgeon is Withdrawn therefrom.

6. The herein described pencil pointer,

comprisingtwo cooperating abrasive members movable toward and from each other 7 and supporting and actuatingmeans for said members including a gudgeon .projectable into the end of one of the members and withdrawable therefrom for removing the member, a leaf spring cooperating with the gudv geonand serving to hold it in engagement with the member, a pivot support for the op- ,posite end of the leaf spring from the gud geon, and a coil spring having one end attached to the leaf spring and the other end attached to a fixed point beneath theother V abrasive member, said -coil spring actingto swing the leaf springandgudgeon around the leaf spring pivot and toward the other abrasive member, substantially as set forth.

WM. EDGAR ABBOTT.

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