US296654A - wales - Google Patents

Description

(No Model.)

W. H; WALES.

LEAD AND GRAYON HOLDER.

Patented Ap r WITNESSES.

N. PETERS. Plwlo-Limogawer. Walhmgtcu. D. c,

screw-holding tube, provided with a longitudi- NITED STATES Anni -rrien.

. \VALTER H. ALES, OF PBOVIDENCE RHODE ISLAND, ASSIGNOR TO ALQNZO T. onoss,

OF SAME PLACE.

LEAD AND CRAYON HOLDER.

SPECIFICATION forming part of Letters Patent No. 296,654, dated April 8, 1884.

To aZZ whom it may concern..-

Be it known that I, WALTER H. WALES, of Providence, in the State of Rhode Island, have invented an Improvement in Grayon-Holders, of which the following is a specification.

My invention relates to that class of lead and crayon holders in which the crayon is projected from the pointtube of the holder or retracted within its bore by means of screw mechanism; and it consists in the improved construction of the several parts, whereby the holding-stub of a used-up crayon may be antomatically expelled from the carrier and a fresh crayon be readily inserted therein.

Figure 1 represents an axial section of the improved holder. Fig. 2 represents an elevation of the slotted screw-holding tube. Fig. 3 represents an elevation of the carrier with an inserted crayon. Fig. 4 represents an elevation of the several partsof the screw mechanism as secured to each other preparatory to the final attachment of the case of the holder. Fig. 5 represents an axial section of the carrier with an inserted crayon. Fig. 6 represents a section of the carrier, showing the forcer. and the plug in proper position for the insertion of the crayon. Fig. 7 represents a partial elevation'of the hollow screw. Fig. 8represents a longitudinal section of the carrier provided with a forcer for acting directly against the end of the crayon.

In the accompanying drawings, A is the nal slot, (2-, the lower end of which is extended laterally for about one-half of the circumference of the tube, and below the laterally-extended slot is secured the collar (1, by means of which the point-tube B is secured to the tube A. The carrier for the lead or crayon D is formed of a tube, d, made to fitloosely within the boreof the tube A, and is provided with a pin, 6, adapt-ed to pass through the slot a in the tube A and to enter the groove f of the screw 0. The plug 9 is made to looselyfit the bore of the carriertnbe d, and is provided with the pin 72., made to enter the slot 73 in the side of the carrier; and the slot 13 and pin h serve to allow a limited forward and backward movement to the plug 9 within the bore of the tube d. The rear portion of the cylindrical plug 9 is cut awayat one side, as shown in Figs. 1

and 6, so as to leave a semicircular face, and engages with the correspondinglyformed face of the forcer j, which is also adapted to enter the bore of the tube (1. The rear end of the forcer is provided with an enlargement or collar, k, adapted to loosely fit the bore of the tube A, and provided with a pin, an, which, after passing through the slot c in the tube A, enters the groove f of the screw 0. The pin m of the forcer is arranged in the groove f of the screw, one turn back from the pin e of the carrier-tube. The lower end of the screw Ois cut away on one side for onehalfits circumference, as shown in Fig. 7, a corresponding opening of equal extent having been formed by the lateral extension a of the slot a, made in the tube A. The lower end of the carriertube is slit, in order that it may expand slightly to hold leads or crayons of varying sizes; and when the carrier-tube is screwed down to the point of the holder in order to expel the stub of a used-up lead or crayon, the pins 6 and m a will pass down in the groove of the screw with the two semicircular faces of the forcer and plug in contact with each other, as shown in Fig. 5, until the pin 6 has reached the angle of the slot a. Then the continued revolution of the screw will act to carry the pin m and forcer downward, and the coincident semicircular faces of the forcer and plug will cause the forward movement of the latter to the lower end of the carriertube to expel the lead or crayon; and when the continued revolution of the screw has progressed far enough to cause the pin 0 to bring up against the shoulder a, formed by cutting away a half portion of the lower end of the screw, the pin 6 will be forced into the lateral extension a of the slot a, while the pin in will be held in the slot a, as before, thus causing the partial rotation of the tube d and plug 9 until the pin 6 brings up against the extreme end of the lateral extension at of the slot at, at which time the plug 9 will have made one-half of a revolution with regard to the forcer j, which will have maintained its original axial position in the tube A, as shown in Fig. 6, thus allowing the semicircular face of the plug to pass back of the corresponding face of the forcer upon the insertion of a fresh lead or crayon into thecarrier-tube. I thus provide for the insertion of the lead or crayon the screw will first draw back the forcer by means of its pin m, and then bring the semicircular faces of the plug and forcer into proper coincidence, and the continued movement of the screw will draw the crayon back into the holder. The carrier-tube may also be charged with a fresh crayon at any longitudinal position of the carrier in the tube A.

A modification of my improvement is shown in Fig. 8, in which the forcer is brought forward, so as to rest against the end of the crayon, and in this case the operation of the holder will be as before, with the exceptionthat the forcer must be screwed back for a certain distance from its extreme lower position before the crayon can be inserted into the carriertube.

I am aware that the main parts of the crayon-holder shown and described are not new,

but have heretofore been well known; and the lapping the ends ofthe forcerand plug within the carrier-tube, whereby the carrier may be loaded with a fresh lead or crayon at any required point. I

I claim as my invention- 1. In a lead or crayon holder, the combination ofthe carrier-tube d, provided with the pin 6, and the forcer j, provided with the pin m, with the tube A, provided with the slot (1, havinga lateral extension, a, and the hollow screw 0, provided at its forward end with the shoulder n, whereby, upon the arrival of the carrier-tube at its lower stop, provision is made for the lateral movement of the pin e during the subsequent forward movement of 5 the forcer by the continued movement of the screw, substantially as described.

2. In a lead or crayon holder, the combination of the carrier-tube d, provided with the pin 6, the plug 9, adapted for a limited movement within the tube d, and having its rear end cut away at one side, and the forcer j, having its forward end made to correspond with the rearward end of the plug and provided with the pin an, all arranged and operating substantially as described.

WALTER H. WALES.

Witnesses:

SOORATES SoHoLFIELD, J AMES PETERS.

Images