US 2591831 A
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Description (OCR text may contain errors)
A ril 8, 1-952 G. B. KNUFF CRAYON OR THE LIKE HOLDER AND FEEDING TUBE Filed Dec. 10, 1948 INVENTOR. GILBERT B. KNUFF Patented Apr. 8, 1952 CBAYON"OR THE LIKE'HOLDEB AND FEEDING TUBE.
Gilbert Knufl; Cleveland, Ohio Applicationfiecember 10.19.48,. Serial No. 64,651; 2 Claims, (01. nee-13;)
My invention relates to certain: new and useful improvements in holders or dispensing tubes for crayon, chalk or like marking ordrawing devices.
It is an object of my invention to provide an improved holder of the type aforesaid which will protect the hands of the person using the same from contact withthe chalk, crayon, etc. carried thereby.
A further object of my invention is to provide a holder of the type described which eliminates breakage of the object carried thereby.
Another object of my invention is to provide an improved holder of the type aforesaid which will be composed'of but a few operating parts, subject to economical. production, and highly efiicient in use.
The object of theinvention may be realized by the means described in detail in the following specification, in which specification reference will be made to the accompanying drawings, showing by way of example, a preferred embodiment of the inventive idea.
In the drawings:
Fig. 1 is an enlarged vertical view,certain portions being cut away for clarification and other portions being-sectioned of the holder of my invention, a portion of a crayon carried being shown.
Fig. 2 is a vertical plan view of the holder dispensing tube of my invention.
Fig. 3 is a view taken from the line 3 -3 of Fig. 2.
Fig. 4 is a top plan view of locking means adapted to be associated with the holder of Fig. 2.
Fig. 4a is a side plan view of the locking means of Fig. 4;
Fig. 4b is an end plan view of the locking means of Fig. 4;
Fig. 5 is an enlarged view of the and closure element or cap shown in Fig. 1;
Fig. 5a is a side plan view of the closure element of Fig. 5;
Fig. 5b is a bottom plan view of the closure element of Fig. 5;
Fig. 6 is an enlarged view of a section of the holder of the crayon and locking means of Fig. 4;
Fig. 7 is an enlarged fragmentary view illustrating the muzzle end of the staff of Figs. 1 and 2.
Referring now to the drawings in all of which like parts are designated by like reference characters, at l 0, I show a cylndrical dispensing tube 2 or; holder, which in the preferred form of my invention illustrated herein, is employed as a crayon orchalkholderand dispenser, the use of'a.crayonbeingillustrated herein. The holder I0 is provided with a longitudinally extending slot, ll, arcuate spaced notches I2 opening into said slot at spaced intervals at one side of said slot. The slot lLpreferablyextends from the closed end l3 of the holder to a point adjacent themuzzle end I4 of the holder. Locking means I5, as best? illustrated in Figs. 4, 4a, 4b, and Figs. 1 and 6 comprise short plastic rod portion 16 and a substantially narrow elongated handle portion I! connected tosaid rod lfibymeansof a pair of spaced lugs 18. The said rod portion l6 of the locking means is adapted to be inserted withinthe tube Hi, the diameter of the rod It being slightly less than the inner diameter of the tube, and the lugs [Bare of such dimensions asto ride in the slot II, the handle IT protruding upwardly therefrom so that the locking means may be manually and reciprocably'moved in the slot, the same being adapted to berocked into locking engagement bymeans of the placement of the lugs [8 into any adjacent pairs of thenotches l2. An enclosure cap I 9 having a cylindrical disc 20, a key 2| and a projecting stem portion 22'associated therewith is adapted to be projected within the .outer end l3 of the tube III, the key 2| ridingin the endof the slot II and the disc 20 closing the open end of the tube.
Themuzzle end of the holder is provided with .a plurality of slots 22,,preferably three in number, adjacent the swaged-in end portions 23 of the muzzle.
The holder I0 is preferably formed of plastic material, also a light weight metal, such as aluminum or other materials might be used, and the holder, in the form shown herein, is of such diameter as to enable the supplier or operator to telescope a crayon therein. The outer diameter of the ordinary childs crayon is slightly less than the inner diameter of the holder I3 and the inner diameter of the tube in the muzzle is of slightly less diameter than that of the remainder of the holder. Hence, the holder is adapted to snugly receive the crayon at the necked-in portion 23 thereof and to hold the crayon in spaced relation in the remainder of said holder.
It will be understood that my invention may be adapted for use as a crayon, chalk or artists marking tool and that according to its applica tion the dimensions will be varied.
In operation, when the crayon or other material is used, and the user desires to eject a portion of the crayon forward to replace what has been used, the user grasps the handle I! and rotates the same in a manner to rotate the lugs 18 out of locked engagement within the arcuate notches and into the elongated runway H, and then pushes, by means of the handle operated pusher rod [6, which contacts the material-to be fed therethrough, such stick material forward. At the desired forward position, and when sufficient material protrudes out of the muzzle end of the holder, the handle and lugs are rotated back into engagement with a forward pair of notches and the pusher rod is locked in this position.
The crayon or other stick material carried by and optionally progressively fed by the tubular holder, is maintained within the tubular holder by its clamping engagement with the swaged muzzle end of the holder. Said swaged end portion however is adapted to expand sufiiciently, by virtue of the provision of the slots 22, to permit the crayon or other stick material, when same is pushed forwardly by the pusher element IE, to move forwardly without undue pressure thereon and eliminates any scraping or abrasion of the crayon or the like.
I am aware that numerous and extensive departures from the embodiment herein disclosed may be made by way of materials employed and dimensions used as well as various other departures, but it is to be understood that these may be made without departing from the spirit of my invention and the scope of the appended claims.
1. A holding device for crayons or the like comprising a tubular holder of substantially light material, said holder being provided with a muzzle end, said muzzle end having a portion of relatively less diameter than the remainder of the holder portion, an elongated longitudinally disposed keyway in the holder extending approximately from the muzzle end thereof to the opposite end of the holder, notches disposed at one side of said keyway and communicating therewith, said notches having a constricted portion adjacent said keyway, a guide telescoped within the holder and adapted to have reciprocal movement within the keyway, said guide carrying means protruding through said keyway and be ing manually reciprocably and laterally movable within the keyway, and into selective locking prising a tubular holder of substantially light material, said holder being provided with a muzzle end, said muzzle end having a portion of relatively less diameter than the remainder of the holder .portion, an elongated longitudinally disposed keyway in the holder extending approximately from the muzzle end thereof to the opposite end of the holder, notches adjacent said key.- way and communicating therewith, a guide telescoped within the holder and adapted to have reciprocal movement within the keyway, said guide carrying means protruding through said keyway and being manually reciprocably movable within the keyway and into selective locking engagement with said notches, the said muzzle end of the holder being slotted throughout its length and opened at the outer end thereof, whereby when a crayon element whose outside diameter is slightly greater than the diameter of the muzzle portion is projected into the muzzle end of the holder, said crayon is yieldably and expansibly received and retractively gripped by the relatively embracing portions of the muzzle.
GILBERT B. KNUFF.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Germany Oct. 12, 1922