US1798029A - Adjustable crayon holder - Google Patents

Description

m wz March 24, 1931. J. P. NICHOLAS ADJUSTABLE CRAYON HOLDER Filed June 12, 1929 ATTORNEY Patented Mar. 24, 1931 UNITED STATES JOHN P. NICHOLAS, F ENUMCLAW, WASHINGTQN ADJUSTABLE CRAY ON HOLDER Application filed Zl'une 12,

This invention relates to writing, marking or drawing devices and has for its object the provision of a novel crayon holder of such construction as to permit a crayon, chalk or I the like to be securely held at a desired posi tion so that more or less may be exposed for service.

An important object of the invention is to provide a holder of this character having novel adjustable means for varying the pressure upon the crayon or chalk held in it so that slippage will be positively prevented while at the same time there will be no danger of crushing or breaking the crayon.

Another object of the invention is to provide a device of this character embodying spring means normally tending to urge the crayon into extended or projected position so that it will be exposed for service, means being also provided for adjusting the spring tension upon the crayon de ending upon cir 'cumstances or how far it lias become worn down.

An additional object is to provide a device of this character which will be simple and inexpensive to make, easy to use, positive in action, efiicient and durable in service, and a general improvement in the art.

With the above and other objects and advantages in view, the invention preferably consists in the details of construction and the arrangement and combination of parts to be hereinafter more fully described and claimed, and illustrated in, the accompanying drawin, in which igure 1 is a side elevation of the complete device.

Figure 2 is a longitudinal sectional view taken substantially on the line 2-2 of Figure 1. 1

Figure 3 is an end elevation.

Figure 4 is a cross section taken on line 4-4 of Figure 1.

Figure 5 is an elevation of the opposite end. Referring more particularly to the draw ing, I have shown the device as comprising an elongated hollow or tubular body which is here represented as hexagonal in cross section though it should be distinctly understood that there might be fewer or more fiat faces if the 1929. Serial No. 370,370.

such is'desired for any reason. At one end this body 10 is slightly enlarged as indicated at 11, tapered ofi as shown, threaded as at 12 and split or slotted asindi'cated at 13, an adjusting nut 14 being screwed onto the thread ed portion 12. Throughout the major portion of its length the body or tubular member 10 is represented as having its angle threaded as indicated at 15 for engagement thereon of a nut member 16 which abuts against aslidable sleeve 17 corresponding in cross section to the cross section of the tubular body 10. Furthermore, the major portion of the body is formed with-elongated slots 18 through which passes a pin or the like 19 which engages against and constitutes an abutment for one end of acoil spring 20.

. In the use of the device, the crayon indicated at B is inserted throu h the open end of the tubular body or mem er 10, it being of course necessary at this time that the nut 14 be unscrewed to substantially its maximum extent.

The crayon B is pushed down or into the body 10 until it engages against the spring I 20 and may be additionally pushed to compress the spring so that only the desired amount of the crayon will project beyond the open end of the tubular body. The desired position having been obtained, the operator grasps-the nut 14 and turns it in a clockwise direction so as to screw it onto the tapered threaded portion 12 of the enlarged end 11 of the body and it is then quite evident that the travel of this nut along the tapered portion will contract this end of the tubular ody, the slits or slots 13 permitting the action, so that a thorough clamping action upon the crayon will be obtained.

In order to get more crayon out of the 99 holder for use it is not necessary to screw down on nut for the first time as inside spring is tight enough in holding crayon, but in the second time unloosen nut 14 for more crayon. Then screw nut 14 tight, then screw nut 16 down so inside spring is held tight against crayon. It should also be noted that crayon can be used up to one-quarter inch in length.

In the operation, the device is used in exactly the same manner as any other for the same purpose but the feature of novelty and advantage resides in the provision of the clamping nut members and the adjusting nut means together with the spring coact ing with the crayon so that the crayon may be projected more and more during the use of the device so that it is entirely consumed, there being consequently no waste.

From the foregoing description and a study of the drawing it is believed that'the cons'truction, operation and advantages will be readily understood without further explanatory matter.

While I have shown and described the preferred embodiment of the invention, it should be understood that I reserve the right to make all such changes in the details of construction and the arrangement and combination of parts as will not depart from the a spirit of the invention or the scope of the subjoined claim.

Having thus described the invention, I claim A crayon holder comprising an elongated tubular body open at one end and closed at the other and adapted to contain a crayon, means at the open end of the body for con tracting the same to clamp the crayon and restrain it against movement, said body being exteriorly threaded and formed with diametrically opposite longitudinally extending slots, a sleeve slidable externally upon the body, a transverse pin passing through the sleeve and said slots, a spring located Within the body and having one end abutting against the crayon and its other end against said pin for normally urging the crayon outwardly, and a nut threaded onto the body in abutting engagement with the sleeve for moving the same to vary the spring pressure against the crayon whereby upon release of said clamping means the crayon will be projected.

In testimony whereof I affix my signature.

JOHN P. NICHOLAS.

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