US1729791A - Writing device - Google Patents

Description

Oct. l, 1929. H,.|, MORRlS 1,729,791 o WRITING DEVICE Original Filed Deo. 29, 1921 Patenten oci. 1, 1929v UNITED sTATEs PATENT oi- F'icE HOWARD I. MORRIS, OF LAKEWOOD, OHIO, .AssIoNon TO THE nonna` PENCIL coin- PANY, or CLEVELAND, OHIO, a CORPORATION or OHIO l WRITING DEVICE originel application med December 29,1921, serial No. 525,585. Divide-a and this application inea.

November 17, 1924.

pencil of this type having a self feeding writing element or lead.

Another object'of the lnvention 1s to pro- 1o vide an improved pencilvin which means are provided of automatically f eedingthe-writing element or lead endwise relative to the holder or body portion of the devlce Other objects of the invention will be ap- 15 parent to those skilled in the art to which my invention relates from the following description taken in connection with the accompanying drawings.

In the drawings, 1 is a longitudinal 2o sectional view of a writ-ting device or pencil embodying my invention. l

Fig. 2 is a section on the line 2 2 of Fig. 1. Fig. 3 is a fragmentary elevation. Figs. 4 and 5 are detail views. Fig. 6v is a sectional Viewillustrating the operation of feedingthe lead forward.

Fig. 7 is a fragmentary section illustrating the position of certain elements when a new lead is -being inserted.

Fig. 8 is a section on the line 8-8 of In the drawings-1c indicates a body or holder preferably comprising a barrel, cylinder or shell 27 having at one end a tapered or conical member 3. 'The conical member 3 is r formed with a bore 34", its inner end serving as a stop 3 for a purpose to be later set forth.

Theadjoining ends of the barrel 2 and member 3 are cut away so that the inner end ofA the conical member may it within the barrel, being preferably screw-threaded' therein as shown. 5 indicates a guide element for the writ-y ing element or lead, 6. The guide element 5 is slidably mounted in the tapered member 3 and is operated endwise to eilectl feeding of the writing element or lead 6 in the manner to be later set forth. The bore of the guide element is of proper size to receive and support a lead 6 but to contact with the lead with Fig. 7.'

Serial No. 750,278.

sufficient friction to move the' lead with it in the manner to be later described.

28 indicates a collar element 5 provided on the guide and arranged to engage the stop 3 for limiting the outward movement of the guide element 5, as well as the writing clement 6.

29 indicates formed integrally an extension preferably with the guide element 5.

The extension 29 is preferably formed with a bore similiar in size lto the bore of the guide element.

40 indicates a support or bearin member l'stationarily mounted within the arrel `2,

preferably substantially midway between its ends. The support 40 preferably Vcomprises coincidenty with the axis of the .barrel 2.

The inner or upper .end .of the extension 29 this integral mem supporting ena cylindrical member the axis/Of which is y of the cylindrical member 40. As the guide element '5 and extension 29 are formed integrally, the cylindrical membr 4.0 supports one end of er and the tapered member 3 supports its other end tO guide them as they v move` longitudinally, inwardly and outwardly, in the manner to be later set forth..

28 indicates a supplemental collar surrounding the extension 29.

8 indicates a 'spring/preferably coiled around the eXtension 29 and engaging the collar 28 at one end and` at its opposite end engaging the cylin'drical member 40. The spring 8 tends to move the extension 29 and guide element 5 outwardly and normally to maintain the collar 28 against the stop 3.

7"y indicates afeed member -arranged to.

feed the lead 6 forwardly. The feed meml berpreferably comprises a rod slidably fittin and extending thru the extension 29 an at its lower endengaging the inner end of the lead 6.

The feed member 7 erably provided with relatively line is prefannular serrations 7, as shown in Fig. 4, one purpose of which is. to insure suiiicient frictional contact between the feed member 7 'and inner walls of the extension 29 that it will move with the latter to effect the lead when the extension of a feeding of 29 moves out- Wardly. The feed member 7c extends through the cylindrical member 40.

19c indicates as an entirety devices for controlling the feed of the feed member 7c. The control devices 19c comprises a clutch ring 41 preferably pivoted at one side in a recess 42 formed in the support 40 and a spring 43 normally tending to maintain the ring 41 in clutching engagement with the feed member 7 c. As shown in the drawings, the opposite sides of the inner wall of the clutch ring l41 are inclined relative to its axis .to form knife-like edges, which lock against opposite sides of the feed member when ythe ring is swung in one direction about its pivot, to prevent rearward movement'of the feed member, but to permit free movement thereof inthe opposite direction. The spring 48 is an expansion spring and is arranged to engage the ring 41 at that side opposite to its pivot, as shown in Figs. 1 and 6. As the spring 43 maintains the knife edges of the ring 41 in operative engagement with the feed member 7c, the latter is always locked against rearward movement. The support 40 is formed with a recess 44 at that side opposite to the recess 42 to receive the spring 43 and the adjacent end or edge of the ring 41.

In the form of construction illustrated, the guide element 5 and extension' 29e are maintained in their outward position, against the stop 3c', by the spring 8c. The lead 6c abuts the outer end of the feed member 7, which, being locked by the clutch ring 41, prevents rearward movement of the lead. In the use of this form of construction I prefer to keep both the lead 6c and outer end of the guide element 5 in contact with the paper. As writing progresses and the lead wears awa the resulting pressure transmitted, longitudinally, or substantially so, through the holder toward the writing surface will cause the guide element 5c to recede or move inwardly relative to the lead 6, against the tension of the 'spring 8, then -when the pressure is relieved, for example by lifting of the holder lc in ending one word and commencing another, the spring 8c will move the guide elementand extension outwardly to their normal position. Due to the frictionalv engagement of the lead and feedmember with the bores of the guide element and extension, both will be moved forwardly with the latter, thus causing a feeding of the lead. The annular serrations 7c (see Fig. 4) insure positive engagement of the clutch ring 41 with the feed member 7 c.

18c indicates as an entirety devices for moving the clutch ringI 41 to and maintaining itinvan inoperative position, whereby a new lead 6c may be inserted. in the guide element 5 and the feed member 7c positioned to feed the lead forwardly. These devices preferably comprise the following instrumentalities; 45 indicates a cylinder slid'ably supported at one end within the upper portion of the cylindrical member 40 and provided with a collar 46. The cylinder 45 is preferably of the same size from end toend to simplify the construction and enable it to serve as a guide and support for the upper end of the feed member 7C. 47 indicates a coiled spring interposed between the cylindrical member 40 and the collar 46 and normally acting-on the latter to move the cylinder 45 rearwardly, but permitting movement of the cylinder forwardly. 48 indicates a head or cap rotatably and slidably fitting the rear end of the barrel 2 to close it. The inner end of the head 48 is formedv with a recess 49 in which the rear end of the cylinder45 is secured in any desired manner. 50 indicates a lug projecting from the forward end of the cylinder 45 and arranged to cngage the clutch ring 41 on that side opposite to its pivot to move it against the tension of thespring 3 to an inoperative position. Accordingly, if the cylinder 45 is moved -endwise the lng 50 will swing the ring 41 to the position shown in Fig. 7, and release the feed member 7, whereupon the latter may be moved inwardly. The head 48 is preferably connected to the inner wall of the barrel 2c by devices 18 which effect movement of the head and cylinder 45'longitudinally ofthe barrel when it is rotated. The devices 18C preferably comprise a pair of curved grooves 51 formed in the barrelwall and pins 52 projecting from the opposite sides of the head 48 into the grooves. It will be seen that if the head is rotated, the walls of the grooves 51 acting on the pins 52 will causethe head to move inwardly, thus effecting an endwise movement of the cylinder 45. The pins may be maintained in their respective operative position in the grooves 51 by a spring 58 interposed between them. The outer end of the head 48 may be formed with a recess to 4removably 'support a piece of rubber 54.

hand of the writer or user. By controlling and operating the feeding mechanism as described, lthe' user is saved thevannoyance of stopping his work to manipulate the lead as is required in all pencils of which I have knowledge.

The pencil-is particularly advantageous where continuous writing is required or llt) llfi

where the writing must be effected rapidly, as in taking dictation in shorthand. A

By feeding the lead automatically, as writing takes place, dueto pressure of the hand in 'writing with the pencil, great convenience is afforded the writeras no attention is needed to maintain sufficient lead at the writing' end of the pencil for continuedlwriting.

It will further be seen that new leads may be inserted in a simple manner and without the necessity of disassembly to any of the elements. j

To those skilled in the art to which my invention relates, many alterations and constructions and widely differing embodiments and applications of the invention will sug-- gest themselves without departing from the spirit and scope thereof. My disclosures and description herein are purely illustrative and are not intended to be in any sense limiting;

This application is a division of my applilcation filed December 29, 1921, Serial No.

" `inoperable at will.

y of said body and movably supported there- What I claim is:

1. A pencil comprisingva body having a lead projecting from one end thereof, means for supporting and automatically feeding said lead outwardly, and means operable from the other end of said body for maintaining said feeding means inoperableA at' will. L

2. A pencil comprising a body having a lead projecting from one vend thereof to permit writing, means automatically operable as w'riting progresses for feeding said lead outwardl and means arranged 'to en,- gage said fee 'ng means to maintain them 3. In 'a pencil, the combinationof a body, a pair of relatively movable elements projecting from one end thereof andengageable with a surface as writing progresses, one said element comprising a lead and the otherelement comprising a tube through which `the lead is movable endwise, means operable by -the movement of said tubel relative to said lead due to'wearing of the latter during writing, to feed the lead outwardly, and means for maintaining said feed 'means inoperative at will'.

41. In a pencil, the combination of Ia body adapted to' support a section of lead with its outer end projectingfrom one end of said body, an element projecting from one end in, a spring arranged yto permit inward movement of said element relativeto said lead, means actuated vby the inwardmovement of said element relative to said lead due to wearing of the latteras writing progresses .to feed the lead outwardly, and means for maintaining said feed means inoperative at wille;n f

5. In apencil, the combination of a hollow body, a support therein intermediate its ends, i

a pair of axially arranged tubular elements slidably mounted at their inner. ends in said support and each extending to a point near the adjacent end of said-body and movable inwardly, springs tending to move said elements in opposite directions, one of said elements being adapted to hold a section of lead and a feed member for said lead mounted `in and frictionally engaging the inner-walls of the element in which the lead is mounted, and means disposed in said support between the inner ends of said elements for locking said feed member against movement inwardly, and arranged to be engaged by the other ele- ,ment when it is moved toward said locking means.

7. The combination with a pencil casing,

of aJ feeding device capable of propelling a lead, a tube capable iof carrying the lead, .said

tube being arranged to protrude from the writing end of said casing and 'respond to efforts which tend tb move it lengthwise, operating mechanism arrangedto effect a propelling action to said feeding device through reciprocating movement ofv said tube, and resilient means, said resilient means being arranged to counteract inward movement of said tube relative to said casing, to yield to said inward movement when said tube is subjected to the iniuence of normal writingA pressure, and to react with sufficient force to retrieve said tube when said pressure is removed.

8. The combinationwith a pencil casing, of a feedingdevice capable ofpropelling a lead, operating mechanism for saidfeedlng device, said operating mechanism being arranged to induce said propelling action in said feeding device through movement thereof relative to said casing, means for retrieving said movement of said operating mecha-y nism, and controlling means connected to said 'mechanismfand exposed at the writing end of said casing,`said`controlling means being arranged to move relative to said casing when .under the influence of" normal writing pressure and impart movement to said mechanism.

of aufeeding device capable o propelling'a lead, operating mechanism for said feeding device, said operating ,mechanism being ar' lio- The combination with a fpencil casing, I

ranged to induce said propelling action in sa1d feedmg devlce through movement thereyof relative to said casing, and controlling means connected to said mechanism and eX- posed at the writing.,r end of said casing, said cont-rolling means being arranged .to move relative to said casing whenunder the influence of normal writing pressure and impart movement to said mechamsm.

l0. In mechanism of the class described, the combination with a casing, of a tubular member slidably mounted in said casing and projecting beyond the writing'end thereof for engagement with the writing surface and 'slidably supporting a lead and a rod engaging the lead at its rear end, a spring tending to move said tubular member outwardly and resisting inward movement thereof under the influencev of normal writing pressure, means between said rod and tubular member serv ing as a connection therebetween' to insure movement of said rod and feeding of the lead when said tubular member moves outwardly under the influence of said spring, and a clutch for preventing inward movement of said rod when said tubular member moves inwardly but permitting outward movement thereof.

In testimony whereof, have hereunto subscribedmy name.

HOWARD 1. MORRIS.

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