US745053A - Holder for marking or erasive material. - Google Patents

Description

PATENTED NOV. 24, 1903.

R. P. HAFNBR. HOLDER FOR MARKING OR ERASIVE MATERIAL.

APPLICATION FILED MAY 5, 1903.

no MODEL.

A TTOHNE Y 5,

u: NDRRYS PETERS co, PNOTQLLITHQ. WASHINGTON. 0,41.

PatentedNovember 24, 1903.

PATENT FFICE.

RICHARD P. HAFNER, OF PASSAIC, NEW JERSEY.

HOLDER FOR MARKING OR ERASIVE MATERIAL.

SPECIFICATION forming part of Letters Patent No. 745,053, dated November 24, 1903. Application filed liday d, 1903. Serial No. 155,728. (No model.)

\ proved Holder for Marking or Erasive Mate- V rial, of which the following is a full, clear,

and exact description.

The purpose of my invention is to provide a simple form of holder in which an interiorly-located and exteriorly-operated receiver is arranged to travel in direction of one or the other of the open ends of a tubular .casing or body, which receiver is adapted to hold a stick of chalk or crayon, for example, at each end or an erasive material or a marking material at one end and an erasive material at the opposite end, whereby the material attached to either end of the receiver may be exposed for use, or all of the material employed may be protectively concealed within the body or casing.

A further purpose of the invention is to provide a simple and effective means for attachingmaterial to the receiver, together with means applicable to the ends of the body or casing to prevent said ends of the casing from possibly scratching or marring the article or object to be marked upon or cleaned.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of the device, illustrating the manner in which the material is applied to the receiver. Fig. 2 is a perspective view of the article in use, and Fig. 3 is a longitudinal section through the article.

A represents the tubular body or casing, which may be made of any suitable material--for example, metal,celluloid, rubber, or wood-and the said body A is open at both ends and is provided with a spiral slot 10, extending from a point near one end to a point near the opposite end, as illustrated.

Preferably the ends of the body or casing A are expanded, so as to form hub-terminals 11, and in these hub-terminals thimbles 12 are located, which thimbles are of rubber, chamois, or other soft or elastic material. The said thimbles are provided with flanges at their outer ends, which flanges cover the inner portions of the body or casing to which the thimbles are applied, and by reason of the hub formation 11 at the ends of the body or casing A when the protective thimbles 12 are in place in the body or casing their inher surfaces are flush with the inner surface of the body or casing, so that the said thimbles .ofier no obstruction to the free outward passage of any object capable of moving in the body or casingA, as is shown in Fig. 3.

The protective thimbles 12 are adapted to prevent the ends of the body or casing, which ends may be more or less sharp, from coming in contact with the blackboard or other object or article from which the erasure is to be made or upon which marking is to be produced.

A receiver 13 is located within the body or casing A, being adapted to unobstructedly slide therein, and this receiver 13 while it is shown solid may be tubular, if desired. The said receiver may be made of any suitable material. When the receiver 13 is solid, as illustrated, which is its preferred construction, the ends of the receiver are exteriorly reduced in order to form recesses in which the shank ends of clamps 14 are introduced and secured to the receiver 'by screws or equivalent fastening devices, thus preventing the attached clamps from interfering with the proper action of the receiver.

At the outer end of the shank of each clamp 14 a hook-like section 15 is formed, having its inner surface convexed and its outer surface concave. Usually but two of these clamps 14 are necessary at each end of the receiver 13, and the said clamps 14 are preferably made of a spring material. The hook-shaped outer ends of the clamps 14. have their edges more or less sharp for a purpose to be here inafter described.

A band or ring 16 is mounted to slide freely upon the exterior of the body or casing A, and a screw or pin 17 extends through this band or ring 16 into the spiral slot 10 of the said body or casing, as is particularly shown in Fig. 3.

In connection with the receiver 13 two sticks B, of chalk or crayon or other marking material, may be employed, and these sticks B are preferably of the same diameter throughout their length instead of being tapering, as is customary; but the tapering formation of stick may be readily adapted to the holder, if desired.

As is illustrated in Fig. 1, a stick B of marking material is forced between the hook-like 1 outer extremities 15 of the clampsl, and the stick when properly seated against the opposing end of the receiver 13 is then turned around, whereupon the sharp edges of the hook-terminals 15 of the clamps 14 form a spiral groove 18 in the stick of marking ma terial, as is illustrated in Fig. 3. In this manner the hook-like outer extremities of th'e clamps 13 seat themselves in the marking ma-v terial, holding the said material firmly to the receiver and embedding themselves to such? an extent as to ofier no resistance to the pas-i sage of 'the marking material into or outofi the body or casing A. It will be understood, I

however, that anerasive material of any suitable description may be attached to the re-;

,ceiver 13 instead of the marking material Bl shown and above referred to or that a stick? of marking material may be secured to one end of a receiver 13 and a stick or piece of erasive material may be attached to the opposite end of the receiver. I

In the operation of the device by turning; the'ring or band 16 the screw or pin 17, trav-, eling in'the spiral slot 10 in the body or casing A, will cause the receiver 13 to approach one or-the other end of the body or casing A, and consequently bring the material carried by'said end beyond the end of the body or casing in direction of which the receiver is;

made to travel, provided the receiver is car-E ried sufiiciently toward such end .of the body; or'casing. When the receiver 13 is broughtl to an approximatelycentral position in the bodyor casing A, the material at each end of} the said receiver 13 will be contained within; the body or casing Aand will be protected,f

and preferably the length of the material ap-&

plied to the receiver 13 is such as to permit} the parts to have the position just referred to. 5

The device is exceedingly simple, it is ecoi nomic and effective in service, material may be readily applied to the receiver or detached,

therefrom, andthe material may be quickly 2 and conveniently brought in position for use 3 at any time or be carried to a protected position within the body or casing A. j Having thus described my invention, Ij

claim as new Patent- 1. A holder for marking or for erasive material, comprising a tubular body or casing having a spiral slot made therein, a receiver mounted to slide in the body or casing, a guide device passed through the spiral slot of the body or casing into the receiver, and clamps at the ends of the receiver, adapted to hold material in engagement with the receiver, as described.

2. Aholder for marking or for erasive material, comprising a tubular body or casing open at its ends and provided with a spiral slot extending practically from one end to the other, a protective thimble of a soft material located at each end of the body or tube, covering the outer edges of the body or casing, the inner surfaces of which thimbles are in alinement with the inner surface of the body or'casing, a receiver mountedtoslide freely in the body or casing, a band loosely mounted exteriorly of the body or casing, a pin extending through the said band and the spiral slot of the body or casing into the receiver, and spring-clamps at the ends of the said receiver, as described.

3. A holder for marking or for erasivematerial, comprising a tubular body or casing open at its ends and provided with a spiral slot extending practically from one end to the other, a protective thimble of a soft material located ateach end of the body or tube, covand desire to secure by Letters ering the outer edges of the body or casing,

the inner surfaces of which thimbles are in alinement with the inner surface of the body or casing, a receiver mounted to slide freely in the body or casing, a band loosely mounted exteriorl-y on the body or casing, a-pin extending through the said band and the spiral slot of the body or easing into the receiver, the said receiver having its ends reduced in diameter, and opposing spring-clamps having their shanks secured to the reduced end portions of the receiver, which spring-clamps ex- "tend beyond the ends of the receiver and terminate at their outer port-ions in oppositelycurved hook-like members, the opposing faces of which members are convexed and their outer faces concaved, the edges of the said hook-like members of the clamps being more or less sharpened, for-the purpose described.

In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

RICHARD P. HAFNER.

Witnesses: I

J. FRED. ACKER, JNo. M. BITTER.

ICC

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