US853098A - Pencil. - Google Patents

Description

No. 853,098. PATENTED MAY 7, 1907.

F. H LIPPINGOTT. PENCIL.

APPLIUATION FILED NOV.2'l, 1906.

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nnrrn I STATES ATENT OFFICE.

FISHER H. LIPPINCOTT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO LIPPINCOTT PENCIL COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

PENCIL.

Patented May 7, 1907.

Application filed November 27, 1906. Serial No. 345,276.

To It whmn it natty concern:

Be it kn own that I, FISHER H. LIPPINooTT, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented .certain new and useful Improvements in Pendered capable of being reloaded when an in sert.

ser't placed therein is entirely used up.

The construction of my invention will appear from the following description in which reference is had to the accompanying drawings forming a part of this specification, in which like numerals of reference designate corresponding parts throughout the several views, wherein,

Figure 1 is a side elevation of a pencil constructed in accordance with my invention. Fig. 2 is a side elevation partly in central longitudinal section showing one embodiment of my invention in connection with a lead in- Fig. 3 is a similar view showing a slightly modified embodiment of the invention in which a portion of the brake shoe is roughened. Fig. 4 is a side elevation on an enlarged scale of the follower and its braking shoe above referred to. Fig. 5 is a side elevation partly in section of a further modification of my invention in which the surrounding sleeve is omitted. Fig. 6 is a similar view of the modification shown in Fig. 5 but with the holder enlarged for the reception of a crayon or erasing rubber insert and with the spring and surrounding sleeve omitted. Fig. 7 is a transverse sectional view taken on line AA of Fig. 5, the showing of the insert grasping element of the follower being omitted for clearness of illustration, and Fig. 8 is a similar view showing a modified form of brake shoe.

Referring specifically to the accompanying drawing, the numeral 1 designates a holder formed with a longitudinal bore 2 extending therethrough, a longitudinal slot 3' communicating with said bore and a longitudinal recess 4 communicating with said bore along a line diametrically opposite the slot 3. The end of the holder is closed by an ornamental cap plate 5, which may hold an eraser or other attachment. Within the holder 1 an insert 6 is movable. The insert 6 is preferably frictionally held by a suitably constructed sleeve 7 arranged within the pointed end 8. The sleeve 7 may be of any desired construction or material to serve the purposes for which it is designed. The insert 6 may be of varying sizes andv materials, Figs. 1, 2, 3 and 5 showing the use of a lead insert, and Fig. 6 showing the use of an insert of greater di ameter, such as crayon or erasing rubber.

My invention is employed in connection with a pencil constructed of the type above referred to, and specifically comprises a follower in which is embodied a means for gripping and moving the insert, a means for preventing the accidental rearward displacement of said follower and means for engaging and disengaging said last named or braking means. I accordingly employ a follower 9, preferably formed of sheet metal stock and having forwardly extending spaced parallel jaws 10 loosely interfitting and movable within the adjacent slot 3 and recess 4. The insert 6 is frictionally held between the jaws 10. The body portion of the follower in the preferred embodiment of the invention is formed with a rearwardly and downwardly extending upper edge 11 and the rear portion of the follower terminates in an upwardly extending arm 12, which projects through the slot 3 and slightly beyond the surface of the holder 1. The means employed in combination with the body portion of the follower for braking the rearward movement thereof comprises a shoe 13 having its lower edge inclined as at 14 and movably bearing upon the edge 11. The shoe 13 is likewise formed in its rear portion with an upwardly extending arm 15, arranged in spaced parallelism to the arm 12. In the preferred embodiment of the invention the shoe 13 is normally forced to the limit of its forward movement or play with relation to the body portions of the follower 9 by an expansive coil spring 16 interposed between the arms 12 and 15. Surrounding the holder '1 and inclosing the arms 12 and 15 is a sleeve 17 of reduced diameter at its side edges 18 so as to snugly fit the exterior surface of the holder 1, irrespective of its conformation. The sleeve 17 is, for purposes to be described, formed at its central portion of a greater diameter than that of the ends and the length of the portion having such increased diameter is approximately equal to the distance between the extreme side edges of the arms 12 and 15, whereby movement of said sleeve in one direction will engage the arm 12 and move the follower, and movement of the sleeve in a reverse direction will engage the arm and move the brake shoe 13 out of engagement with the body portion of the fol lower. It will of course be understood that the reduced ends 18 of the sleeve serve to afford shoulders which engage the adjacent arms 12 or 15.

The above description sets forth the preferred embodiment of the invention, but the invention is susceptible of various modifications which, while embodying the basic principles of operation and construction, differ from the embodiment described in specific structural details. Figs. 5 to 8 are therefore to be regarded as examples of some of the modifications of which the invention is susceptible. In Fig. 5 I have shown a pencil constructed with the follower and eo-related elements as above described, but from which the sleeve 17 is omitted in order that the parts may be controlled by the pressure of the fingers. Fig. 6 illustrates a similar embodiment which differs only from the construction previously described in the omission of both the sleeve 17 and the spring 16, the gravitatingaction of the shoe in the natural inclined position of the pencil being re lied on to carry out the braking function.

Figs. 7 and 8 illustrate details of construction which as shown are applied to the brake .shoe 13, but which may equally as advantageously be applied to the follower. In Fig. 7 the inclined edge of the shoe is bent laterally upon itself as at 19 so as to afford a bearing surface of increased width and area. In Fig. 8 the stock of the shoe is made of greater width or thickness for the same reason.

It will be readily understood that the braking function of the shoe 18 may in some in stances be facilitated by serrating or roughening the surface of the shoe 13 which comes in contact with the walls of the bore 2, as is illustrated in Figs. 3, 4 and 6.

In practical use when the point of the pencil becomes worn down and it is desired to protrude the insert from the holder to provide a new point, the sleeve 17 is pushed toward the pointed extremity 8 and in such action moves the follower and consequently the insert in the manner above described. In the course of writing or other uses for which the device is adapted, the pressure ssaoss upon the insert would naturally tend to force the same rearward, but this pressure is counteracted by the shoe 13 which, being forced to the limit of its forward movement, either by the spring 16 or by its weight, with relation to the follower 9, will engage the inclined edge of said follower and force the same to bind against the edge of the recess 4. The shoe itself likewise binds against the adjacent surface of the bore 2. It will thus be seen that accidental rearward displacement of the follower under the pressure of use is rendered impossible. Should the insert be withdrawn too far from the holder, the follower 9 is moved rearwardly by a rearward movement of the sleeve 17 which first engages the arm 15 to release the shoe 13 from the follower and then moves the follower rearwardly as an entirety.

The functions above described for the sleeve are of course performed by the fingers of the user, in the constructions illustrated in Figs. 5 and 6. Inasmuch as the follower 9 can be moved in either direction, it will be readily apparent that the inserts 6 may be changed or renewed whenever so desired, it being only necessary to withdraw one from and insert another between the jaws 10.

Having fully described my invention, I claim:

1.. In a device of the character described, an elongated holder provided with a longitudinal bore, a follower in said bore adapted to be widened or expanded within said bore to bring portions thereof into frictional locking engagement with said holder, and means extending without said holder for effecting and destroying such locking engagement.

' 2. In a device of the character described, an elongated holder provided with a longitudinal bore, an insert in said bore, a follower disposed rearwardly of said. insert, said follower being adapted to be widened or expanded within said bore to bring portions thereof into frictional locking engagement with said holder upon the application of pressure tending to move said follower rear-' wardly, and means for throwing said follower out of locking engagement with said holder.

3. In a device of the character described, an elongated holder provided with a longitudinal bore, a follower in said-bore having coacting parts adapted to be widened or expanded within said bore into frictional looking engagement with said holder upon the application of pressure tending to move the said follower rearwardly, one of said coacting parts having a serrated or toothed portion adapted to be pressed against said holder, and means for throwing said serrated or toothed portion out of engagement with the said holder.

4. In a device of the character described, an elongated holder provided with a longitudinal bore and a slot extending through the side of said holder and communicating .with said bore, a follower in said bore comprising relatively movable parts adapted to .be forced outward against the said holder and means secured to saidparts and projecting through said slot for moving said parts relatively to each other.

5. In a device of the character described, an elongated holder provided with a longitudinal bore, a follower in said bore adapted to grasp a lead or other insert, said follower having one or more portions thereof adapted to move outward into frictional locking engagement with said holder upon the application of pressure tending to move said follower rearwardly, and means for destroying the locking engagement 'between the follower and holder, substantially as described.

6. In a device of the character described, an elongatedholder provided with a longitudinal bore and a slot extending through the side of said holder and communicating with said bore, a follower in said bore, frictional locking means embodied in said follower adapted to be forced outwardly into frictional contact with the walls of said bore to prevent the rearward movement of said follower upon the application of pressure tending to move the same rearwardly, means extending through said slot for moving said follower longitudinally of said bore, and means associated with said last named means for throwing the frictional locking means out of engagement with the walls of said bore.

7. In a device of the type set forth, an elongated holder provided with a longitudinal bore, and a slot extending through the side of said holder and communicating with said bore, a follower in said bore, said follower comprising relatively movable parts adapted to be moved outwardly into frictional locking engagement with said holder upon the application of pressure tending tomove said follower rearwardly, means for normally holding said relatively movable parts in frictional contact with said holder, means carried by said follower, and extending through said slot for moving the follower longitudinally of said bore, and means for destroying the locking engagement between the follower and said holder.

8 In a device of the character described, an elongated holder provided with a longitudinal bore and a slot extending through the side of said holder and communicating with said bore, a follower in said bore provided with friction clutch mechanism adapted to lock said follower in any desired position in said holder, means projecting through said slot adapted upon the application of pressure thereto in one direction longitudinally of the holder to automatically release said clutch mechanism and permit the movement of the follower in the said direction, and means projecting through said slot adapted upon the application of pressure thereto in the opposite direction to automatically release said clutch mechanism and permit of the movement of the follower in the last named direction.

9. Ina device of the character described, an elongated holder provided with a longitu dinal bore and a slot extending through the side of said holder and communicating with said bore, a follower in said bore provided with a friction clutch mechanism adapted to lock said follower in any desired position in said holder, means projecting through said slot adapted upon the application of pressure in one longitudinal direction or the other to throw said clutch mechanism into and out of operative engagement, and a sleeve surrounding said means and adapted to engage therewith and upon movement in either direction to release said clutch mechanism and permit of the movement of the follower therewith.

10. In a device of the character described, an elongated holder provided with a longitudinal bore, a follower in said bore having a toothed portion, said follower being adapted to be widened or expanded within said bore to bring said toothed portion into locking engagement with said holder and means extending without said holder for effecting and destroying said locking engagement.

In testimony whereof I aflix my signature in presence of two witnesses.

FISHER H. LIPPINCOTT.

Witnesses:

EMERSON CONRAD, IRENE IVIAOKAY

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