US237365A

US237365A - Doefee

Info

Publication number: US237365A
Authority: US
Publication date: 1881-02-08
Anticipated expiration: 1898-02-08

Description

(NoModgL) 2 Sheetsshed 1.

0. W. ROMAN.

v Lead and Crayon Holder. No. 237,365. 7 Patented Feb. 8, Iss1.

NPEFERS. PflOTOifTHOGRAPMER, WASHINGTON, D C

Uwrrnn STATES OLAES W. BoMAn, on

PATENT FFKCEO LEAD A ND CRAYON HOLDER.

SPECIFICATION forming part of Letters Patent No. 237,365, dated February 8, 1881. Application filed December 13,1880. (No model.)

To all whom it may concern:

Be it known that I, GLAES WV. BOMAN, of the city, county, and State of New York, have invented certain new and useful Improvements in Lead and Crayon Holders, of which thefollowing is a specification.

This invention relates to lead and crayon holders of the kind now known in the market as automatic.

The characteristic feature of my improvement resides in a locking-bar, which enters a longitudinal slot in the lead-containingjtube, and is bodily movable in parallel planes to and from the longitudinal axis of the said tube, so as to clamp andrelease the lead or the lead-holding follower contained in said tube. This motion of the said bar, which may be eli'eeted in various ways and by various means,is most readily obtained by making the bar and the tube longitudinally movable with respect to one another, and by jointing or connecting the bar to the sheath or to the tube in such manner that by and during said longitudinal movement, according to the direction thereof, it will be caused to approach or recede from the longitudinal axis of the tube in parallel planes. I

The manner in which my invention is or may be carried into effect can best bev explained and understood by reference to the accompanying drawings, in which- Figure l is a longitudinal central section, and Fig.2is a side. elevation, partlyin section, of a holder embodying my invention in its preferred form. Fig. 3 is a perspective View of the lead or follower containing tube and the lockingbar, with the pressure-cap in section. The small figure on the left of Fig. 3 is a view of a portion of the lead-containing tube and locking-bar, representing a slight modification in the manner of connecting the two. Fig. 4

is a view of the lead-holding follower. Fig. 5 is a transverse section of the holder on an enlarged scale. Figs. 6, 7, 8, 9, 10, 11, and 12 are views of modifications which will be here- 7 inafter described.

In all the figures like letters indicate like parts.

A is a tubular handle or sheath, of any approved construction, provided with a tapering nozzle or tip, a, which preferably is detachably connected with the body of the handle, being, in the present instance, for this purpose, screwed thereon.

B is the lead or follower containing tube, centered within the sheath or handle and adapted to have a limited longitudinal movement with respect to the same. It is manifest that various means, well known to those acquainted with the art to which this invention pertains, may be employed in order to impart to the tube the requisite longitudinal movement. The means shown in the drawings are those which I prefer, inasmuch as the tube is moved by the hand in one direction only, its movement in the opposite direction being caused by the reaction of a spring, the holder in this respect resembling the well-known automatic holder now on the market. The spring referred to is shown at b as consisting of a spiral spring, which is confined between an annular shoulder, 0, on the interior of the sheath, and the pressure-cap G, to which tube B is firmly attached. The tube is moved forward by pressing on the cap, and is moved backward when pressure is removed from the cap by the reaction of the compressed spring.

Within the tubeB is the follower D, adapted to slide freely back and forth in said tube and having one or more detents or teeth, (1. The tube B is longitudinally slotted, as seen at e, and the teeth 01 project into the slot far enough to prevent the follower from rotating in the Y tube without, however, interfering with its free longitudinal movement. The sides of slot 6 are bounded by lips or flanges f, and between these lips or flanges, which serve as guides, is placed the locking-bar g, which is toothed so as to engage the follower. This deviceisindependent, to a great extent, of both the sheath A and the inner tube, B. It does not partake of the longitudinal movement of the latter, but is arranged so that said movement shall cause it to rise from or descend upon the toothed follower according to the direction of movement. To this end itis confined between annular shoulders c and h upon the'interior of the sheath, so as to be incapable of Ion gitudinal movement, and is connected with the tube B by laterally-projecting pins 1 on it, which enter rearwardly-inclined slots k, formed in the guide flanges or lips f of the tube,loet-ween which it is placed. This pinand-slot connection is of such nature that when the tube is pushed forward the pins '5 will be caused to ride up in the inclined slots 7r, thus raising the bar bodily and disengaging it from the follower, which will now be free to move in'either direction. As soon as it has moved to the desired position pressure on the cap is removed and the spring will force the tube B back. In this backward movement the locking-bar, by the action of the inclined guide-slots 7c, will be forced down and into engagement with the follower. It is manifest that the pins i may be on the tube and the slots kin the bar. It is also manifest that the same result may be attained by means of inclines on the tube and bar respectively arranged so that the bar shall thereby be lifted when the tube is moved forward, the downward movement of the bar when the tube moves back being obtained by means of a spring or springs arranged to press the bar inwardly or toward the axis of the tube.

In lieu of making the tube movable it may be stationary, as shown in the holder represented in sectional elevation in Fig. 6, and in cross-section in Fig. 7. In this case the locking-bar is longitudinally movable and is connected with the pressure-cap by a shank, g, which passes freely through an opening, 0, in the annular support or shoulder 0, (shown more clearly-in perspective in Fig. 12.) The bar being, connected with the tube by the pinand-slot connection 2' It will, when it is moved longitudinally, approach or recede from the axis of the tube B, as before. The same result can be obtained byjointing the lockingbar not to the'tube but to the sheath. This arra-n gemcntis rcpresentedin theholder shown in sectional elevation, Fig. 8, and cross-section, Fig. 9. In this holder the locking-bar, connected with the pressure-cap in the manner shown in Fig. 6, is jointed or pivoted to links 5, which, in turn, are jointed or pivoted to the interior of the case, and the motion of the locking-bar is very similar to that of the movable limb of a parallel ruler.

If desired, the follower may be dispensed with and the locking-bar caused to act directly on the lead, as indicated in the holder shown in sectional elevation, Fig. 10, and cross-section, Fig. 11. In these figures the locking-bar is arranged and'operated in the same way as in the holders represented in Figs. 8, 9; but, inasmuch as it acts simply to clamp the lead, it has no teeth, these preferably being removed. The'edge of the bar which bears on the lead may have a roughened or other suitably-formed retaining-surface.

I have indicated a few of the many ways in which my invention may becarried into effect, the essential feature being a locking bar workin g through a longitudinal slot in the lead or follower containing tube and movable bodily and in parallel planes to and from the longitudinal axis of the tube.

What I claim, and desire to secure by Letters Patent, is

1. The combination of the sheath or handle, the longitudinally-slotted lead or follower containing tube, and the locking-bar, movable bodily and in parallel planes to and from the axis of said tube, these parts being connected and arranged together for joint operation, substantially as and for the purposes hereinbefore set forth.

2. The combination of the sheath or handle, the longitudinally-slotted lead or follower containing tube, the locking-bar, movable bodily and in parallel planes to and from the axis of said tube, the pressure-cap, and the spring, these parts being connected and arranged together for joint operation, substantially and for the purposes hereinbefore set forth.

3. The combination of the sheath or handle, the longitudinally-slotted lead or follower containing tube, the toothed follower, and the toothed locking-bar, movable bodily and in parallel planes to and from the axis of said tube, connected and arranged together for joint operation, substantially as and for the purposes hereinbefore set forth.

4.. The combination of the sheath or handle, the longitudinally-slotted lead or follower containing tube, the toothed follower, the toothed locking-bar, movable bodily and in parallel planes to and from the axis of said tube, the pressure-cap, and the spring, these parts being connected and arranged together for joint operation, substantially as and for the purposes hereinbefore set forth.

5. The combination of the sheath or handle, the longitudinally movable and slotted lead or follower containing tube, the toothed follower. the toothed locking-bar, held between shoulders on the interior of the sheath and between guides in the slot of the tube, and connected with the latter by a pin and slot or equivalent connection, the pressure-cap, and the spring, substantially as and for the purposes hereinbefore set forth.

In testimony whereof I have hereunto set my hand this 27th day of November, 1880.

OLAES W. BOMAN.

Witnesses:

LEoroLn AUSBACHER, E. A. DICK.