US1635974A - Pencil sharpener - Google Patents

Description

Patented July 12, 1927.

UNITED. ST-ATES- PATENT OFFIC MILTON D. MESEBOLE, E MILFORRICONKECTICUT, ASSIGNOB Tl) THE A NSONIA NOV EL'IY coMrANY, or ANYSONIA, CONNECTICUT, A CORPORATION OF CONNECTICUT.

PENCIL SHABPENERJ Application filed September This invention relatesto a pencil sharp.- ener, and an object of the invention isto provide a pencil sharpener having several advantageous features and characteristics of construction which are improvements generally over the prior art, particularly over the disclosure of my pending applica tion for Patent, Serial No. 96,738, filed March 23, 1926. I y 7 k A further object is to provide a pencil sharpener having a box of unique and improved construction for receiving the cut tings from a pencil.

A further bject is to provide in a pencil cuttings from-a pencil, and novel and im-' proved interengaging means upon'said supporting frame and box for detachablyconnecting said box to said supporting frame. lVith the above objects in View, as well as others which will appear as the specifica: tion proceeds, the invention comprises the construction, arrangement and combination of parts as now to be fully described and as hereinafter to be specifically claimed, it being understood that the disclosure herein is merely illustrative and meant in no wayin a limiting sense, changes in details ofconstruction and arrangement of parts being permissible so long as within the spirit of the invention and the scope of the appended claims; g

In the accompanying drawing forming va part of this specification,

Fig. 1 is a perspective view'of a pencil sharpener having the features of the invention, disclosing the sharpener upon a hen- I zontal base or'support;

Fig. 2 is a PGISPGCtIVG VIGW Of thepencil sharpener, disclosing the sharpener upon a vertical baseor support;

Fig. 3 is an-lenlarged sectional view on line 33 in Fig.- 1; 1

Fig. 4 is a smaller-elevational view, parts 7, 1926. Serial No. 134,094.

being broken away and in section, of the box for receiving the cuttings from a pencil;

Fig. 5 is an end view of the box as seen from the right in Fig. 4; i

Fig. 6 is a plan view of the inner end" piece of the box removed therefrom; and

Fig. 7 is a plan View of a modified form of inner end piece for the box.

l/V threspect to the drawing'and the numerals ofreference thereon, 10 denotes the supporting frame of the pencil sharpener,

including a base ll with screw holes for-- screws 12 and an upright or standard 13' upon the base. The supportingframe'i s as disclosed a casting, 14: representing a flange or rib about the side margins of the'bas-e and upright or 7 standard for strength.

Numeral 15 represents a cutter having a tapered recess 16: for the reception of the end of a pencil to be sharpened 17 is a longitudinal slot in thecutter, and 18 is a blade attached toithecutter by a screw 19, the edge of the blade extending into the tapered recess 16. a I 4 v The inner end of the cutter .15 is'provided with a stud 20 mounted in a bearing 21 integral with the supporting frame and at the side thereofopposite the cutter. A crank 22 has a tight fit upon the end 23 of the stud set said metal and thus lock the crank upon the stud, as will be understood.

Numeral 25 denotes a box detachably as sociated with the upright 13 and adapted to receive cuttings from a pencil inserted in the tapered opening of the cutter 15 to be sharpened. The box 25, as disclosed, consistsof a. casting 26 and'afront wall 27 of metal which isremovably associated with said casting 26. That is to js'ay,'the casting 26 constitutes the base 28, the side walls 29', the top wall 30, and the rear wall 31 of the box, and a blank of metal constitutes the frontwall 27 thereof. The rear wall 31 has a clearance opening 32 adapted to align with the tapered opening of the cutter 15 so that pencils to be sharpened may be inserted in the cutter. The front wall 27 of the box extends upwardly from the base 28 thereof a distance slightly less than half of the height of the box, the upper edge 33 of said wall 27 being between the side walls 29 of the casting and preferably being horizontally disposed in use. The side walls 29 of the cast:

mg are desirably parallel and are vertical in use, and the base 28 and top wall 30 are The plate of metal 27 is of outline to snugly fit within the open end of the casting adjacent the base 28 thereof, 34 representing lugs upon said plate adapted to seat in depressions 35 111 the free edges ofl the side walls 29, and 36 denoting a lug upon said plate adapted to seat in a do.

28. Numeral 38 indicates the metal of the free edges 29 and base 28 adjacent the lugs 34 are struck to upset plate 27 to the casting, as will be obvious.

box 25 include locking members 39 adapted to detachably enter vertical elongated slots 40 in the upright or standard 13, said upright or standard havmg two sets of elon-l gated slots 40, one set to be used when the pencil sharpener is upon a horizontal support A (Fig. 1), and the other set to be used when the sharpener is upon a vertical support B (Fig. 2). Each member 39 includes a downwardly disposed hook 41 providing a notch 42 between the hook and a side wall 29, the front and rear walls 43 of the notch being preferably vertical and spaced apart a distance approximately equal to the thickness of the material of the upright or standard 13.

As disclosed, the plate 27 is notched a 44 to provide a spring 4:. bent outwardly away from the casting 26'. A protuberance 46 upon the spring is adapted to enter a depression 47 in the upright 13, there being two depressions 47 in said upright, one to be entered by the protuberance when the sharpener is upon a horizontal support, as in Fig. 3, and the other to be entered by said protuberance when the sharpener is upon a vertical summrt, as in Fig. 2.

In Fig. 7 the plate 27 is with ut ill? 12 cial spring 45 and protuberance 46. said plate 27 being here adapted to itself serve as the spring member.

The manner of d-eta-chably associating the box 25 with the upright 13 will be apparent.

The locking members 39 are first inserted in the slots 40 until the notches 42 align with the upright or standard, and the spring 45 is made to engage the adjacent face oflthe upright or standard with pressure; The box being so situated against the upright, it is forced to slide downwardly until the bases f the notches 42 engage the lower edges of said metal and lock the standard until said walls 43 are clear of said upright or standard. lVhen the box is "suspended upon the upright or standard, the preferably smoothly curved about as shown.

cutter is in the box, the wall 27 is clear of the cutter, and the opening of the cutter {aligns with the clearance opening 32 of the jlrear wall of the box.

It is to be understood that the plate 27 .l r ,could have the special splmg 4.) with pro tuberance 46 omitted, or the plate 27 could lg have a protuberance such as that denoted 46. pression 37 in the free edge of the base locations where glwhat I claim as new and desire to secure of the side walls'ifiby Letters Patent is:

and 36?} 1. 'In a pencil sharpener, a box for receiv "ling the cuttings from a pencil, consisting of {la casting constituting the top, bottom, side The front edges of the side walls 29 of the {and Having thus fully described the invention,

rear walls of said box, and a blank of metal constituting the front wall of the box, said blank of metal being of outline to snugly fit within the open end of the casting adjacent the bottom wall of the box between the side walls thereof, and said blank of metal including lugs adapted to be fastened in depressions in. the end portions of said bottom and side walls.

2. In a pencil sharpener, a box for receiving the cuttings from a pencil, consisting of a casting constituting the top, bottom, side and rear walls of said box, and a blank of metal constituting the front wall of the box, said blank of metal being adapted to snugly fit within the open end of the casting adjacent the bottom wall of the box between the side walls thereof to terminate at a location spaced from the top wall of the box, and said blank of metal including lugs adapted to be fastened in depressions in the end portions of said bottom and side walls.

3. In a pencil. sharpener, a supporting frame, a cutter mounted in said frame, a box for receiving cuttings from a pencil, and a plurality of means for detachably securing said, box upon said supporting frame and about said cutter, said plurality of means including cooperative devices for suspending said box upon said supporting frame in any one of a plurality of different relations to said supporting frame.

4. In a pencil sharpener, a supporting cal, and means fordetachably securing said box upon said member about said cutter when said member is horizontal, both of said means adapted to separately retain saidbox in upright position, said first mentioned means comprising hooks upon said box adapted to enter vertical slots in said member arranged in the same horizontal plane when said member is vertical, and said sec ond mentioned means comprising said hooks adapted to enter other vertical slots in said member arranged in the same ho 'izontal plane when said member is horizontal.

5. In a pencil sharpener, a supporting frame, a cutter mounted upon said frame, a box adapted to be situated about said cutter, and means for detachably locking said box to said frame, said means comprising clownwardly disposed hooks upon said box adapted to enter vertical slots in said frame, said hooks providing downwardly opening notches into which the material of said frame adjacent the lower ends of said vertical slots is adapted to lie, and spring means upon said box adapted to engage said supporting frame when said hooks are associated with said supporting frame.

, 6. In a pencil sharpener, va supporting frame. a cutter mounted upon said frame, a box adapted to be situated about said cutter, and means for detachably locking said box to said frame, said means comprising downwardly disposed hooks upon saidbox adapted to enter vertical slots in said frame, said hooks providing downwardly opening notches into which the material of said frame adjacent the lower ends of said vertical slots is adapted to lie, and means upon said box and below said cutter adapted to engage said supporting framewith spring pressure when the material of said frame adjacent said vertical slots is in said notches.

7. In a pencil sharpener, a supporting frame, a cutter mounted upon said frame, a

box adapted to be situated about said cutter, said box comprising top,ybottom, side, rear and front walls, and means for detachably locking, said box to said frame, said means comprising downwardly disposed hooks upon said box adapted to enter vertical slots in said frame, said hooks providing downwardly opening notches into which the ma-,

terial of said frame adjacent the lower ends of said Vertical slots is adapted to lie, and means upon said front wall of the box adapted to engage said supporting frame with spring pressure when said hooks are associated with said supporting frame.

8. The combination as specified in claim and means for detachably locking said box Lit) to said frame, said means comprising downwardly disposed hooks, one upon each side wall of said box, adapted to enter Vertical slots in said frame, said hooks providing downwardly opening notches having parallel side walls into which the material of said frame adjacent the lower ends of said vertical slots is adapted to snugly fit, said front 7 wall and supporting frame adapted to engage each other with spring pressure when said hooks are assembled with said supporting frame.

Signed at Bridgeport, in the county of Fairfield and State of Connecticut, this 31st day of August, A, D., 1926.

MILTON n. MESEROLE.

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