US2570496A

US2570496A - China marking pencil

Info

Publication number: US2570496A
Application number: US144235A
Authority: US
Inventors: Ernest H Seibert
Original assignee: AUTOPOINT CO
Current assignee: AUTOPOINT CO
Priority date: 1950-02-15
Filing date: 1950-02-15
Publication date: 1951-10-09
Anticipated expiration: 1968-10-09

Description

Oct. 9, 1951 E 5E|BERT 2,570,496

CHINA MARKING PENCIL Filed Feb. l5, 1950 l'wf//ufor I Patented Oct. 9, 1951 CHINA MARKING PENCIL `Ernest Seibert, Chicago, Ill., assignor to Autopoint Company, Chicago, Ill., a corporation of Illinois Application February 15, 1950, Serial No. 144,235

(Cl. 12o- 21) 2 Claims;

The present invention relates to a novel pencil .construction and. especially to a novel markingpencil or crayon holder for securely yet yieldably .gripping and retaining. a length ofv crayon or `other marking substance and permitting ready .renewal Vof the point of the crayon by a simple operation.

Among the objects of the present invention is the provision of a novel adjustable holder for gripping and tensionally retaining the exposed end or point of a length of. crayon or other marking substance generally of relatively large cross-section and usually composed of a relatively soft composition. In the disclosed embodiment, the length of marking substance is disposed within the hollow interior of the barrel or body of the markingpencil and when releasedis fed by'gravity to the tip of the pencil or holder and tensionally held inl adjusted position .with the point or end thereof exposed, the crayon or marking substancebeing securely yet yieldably held in such adjusted position. Y

A further object of the present invention is the provision of a novel gripping or clutching mechanism having spring fingers forced into gripping engagement by an encompassing sleeve or tip that is longitudinally adjustable upon the barrel of the marking pencil or holder, the encompassing sleeve or tip causing the gripping mechanism to apply a yieldable gripping pressure by which the marking substance is held iirmly but suiciently yieldable to prevent undue strain upon the relatively soft crayon or marking substance.

The present invention further comprehends the provision of a simplified construction of marking pencil or crayon holder oi the type employed for mari-.ring china, plastics, enamelware and other articles having a relatively hard and glossy surface or iinish which does not yield to legible marking by a leader other type of pencil.

The invention further resides in the construction, combination and arrangement of parts illustrated in the accompanying drawings, and while there is shown therein a preferred embodiment, it is to be understood that the same is susceptible of modifi-cation and change, and comprehends other details, arrangements of parts, features and constructions without departingfrom the spirit ci" the invention.

In the drawing:

Figure l is a view in sid-e elevation of the novel marking pencil with the end or point of the crayon or marking substance projected beyond the tip and ready for marking.

Fig. 2 is a View in vertical cross-section taken 2 longitudinally through the marking pencil -or crayon holder of Fig. l.

Fig. 3 is aview in perspective of the split sleeve slotted to provide a plurality of spring fingersy or clutching jaws adapted to be pressed into yieldable gripping engagement with th-e crayon or marking substance.

Fig. 4 is a plan View of the blank from which the sleeve of Fig. 3 is formed.

Referring more particularlyV to the drawing and to the novel illustrative embodiment therein selected to disclose the present invention, the novel marking pencil or crayon holder comprises a barrel E53 of plastid' metal or other suitable composition having suicient inherent strength for use as the barrel or body of the marking pencil. Into the upper open end of the barrel is press-fitted the lower end I! of a ferrule or collar i2 with the projecting upper. open end of this fer-rule or collar adapted to receive a length of crayon or other marking substance I3. A cap i4 adapt-ed to provide a closure for the upper open end of the ferrule or collar and the barrel.

At its lower end the barrel is eXteriorly threaded at i5 to receive an internally threaded tip i6 having its lower end il reduced on the exterior and its inner surface downwardly and inwardly tapered at iii. Within the lower end of the barrel is mounted a split sleeve i9 having its upper cylindrical end 2| frictionally held in the barrel, and its lower end 22 reduced to provide a plurality of spaced resilient ngers or projections 23. To properly locate thissplit sleeve i9 in the barrel, it is provided with outwardly and upwardly projecting tongues 2li bent or pressed outwardly from the sheet of metal from which the split sleeve le is formed, and providing a stop or limiting means for limiting the depth to which the sleeve may be forced into the lower end of the barrel.

The extreme lower end il of the tip I6 has an internal diameter such that as the tip is screwed tightly onto the threaded end of the barrel, the inner end oi the tip engages and forcibly presses the resilient ingcrs or projections 23 into gripping contact or clutching engagement with the crayon or marking substance i3 and thereby retaining the crayon or marking substance against retraction. Thus when the extended end or point 26 of the crayon or marking substance becomes worn down, all that is necessary tov secure a new point is to unscrew the tip i6 whereby to relieve the pressure upon the spring fingers or resilient projections 23. Release of such pressure allows thespring fingers or projections to return to their extended or release position, allowing the crayon or marking substance to drop through these fingers or projections to the desired exposed length. Then by screwing the tip back onto the barrel these fingers or projections are again caused to tightly grip the crayon or marking substance and retain it in fixed position. As the barrel ID and ferrule or collar I2 are preferably hollow throughout their length, the length of the section of crayon may be substantially that of the barrel.

From the above description and the ydisclosure in the drawing it will be apparent that the present invention comprehends a novel marking pencil or crayon holder comprising a minimum number of parts that may be readily assembled or disassembled, and in which assembly a new, eX- posed end or point of the crayon may be quickly made available as the point becomes worn or a new point is required. All that is required is to unscrew the tip sufficiently to cause its tapered, interior camming surface to release the pressure on the spring fingers or gripping jaws, whereupon these iingers or jaws return to their normal expanded or retracted position whereby to automatically release the crayon and permit it to drop by gravity to a new exposed position.

By forming the hollow barrel open at its opposite ends, the crayon or marking substance employed'may be inserted into the upper end and be of a length approximately that of the length ofthe barrel, with th-e cap i4 forming a closure for this upper end of the barrel. A clip 25 permits the pencil or holder to be carried in the pocket.

Having thus disclosed the invention, I claim:

l. A marking pencil comprising a hollow, open-v ended barrel for receiving a length of crayon and threaded at its lower end, a split sleeve of thin, resilient sheet metal having a part press-fitted into the lower end of the barrel and having a plurality of downwardly and inwardly tapered spring fingers adapted to encompass the crayon and spaced tongues projecting from the circumference of the sleeve intermediate its leng-th providing stops anchored against the lower end of the barrel for accurately .locating and retaining Cil the sleeve in the end of the barrel and against longitudinal movement, and a tip threaded ontp the externally threaded lower end of the barrel and which when tightly threaded onto the end of the barrel forces the spring fingers inwardly into holding engagement with the crayon, and when the tip is unscrewed the crayon is automatically released by these spring fingers to permit adjustment of the crayon to expose a new point.v

2. A marking pencil consisting of a hollow barrel open at its opposite ends for the reception of a leng-th of marking crayon and threaded at its lower end, a threaded tip adapted to be mounted on the threaded end of the barrel, a longitudinally split, tubular member comprising a sheet of thin resilient metal bent to form a split sleeve having an upper cylindrical part press-fitted into the lower hollow end of the barrel and a lower part providing resilient clutching jaws downwardly and inwardly tapered to provide a cylindrical opening of greater diameter than the marking crayon, spaced tongues projecting outwardly from the exterior of the tubular member for anchoring said member against longitudinal movement and camming surfaces on the interior of the lower end of the tip and encompassing the resilient clutching jaws whereby when the tip is screwed onto the barrel the camming surfaces engage and force the jaws into gripping engagement with the crayon and the crayon held xedly yet yieldably in marking position.

ERNEST H. SEIBERT.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,907,772 Fellowes May 9, 1933 2,365,880 Juelss Dec. 26, 1944 FOREIGN PATENTS Number Country Date 986 Great Britain 1877