US1432993A - Pencil cap - Google Patents

Description

K. R. GARNER.

PENCIL CAP. APPLICATION FILED MAY 3. I921.

Patented @ct. 24, 1922.

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Jkmsmmm KR Q Patented @et. 24, 1922.

RICHARD GARNER, OF WINNIPEG, MANITOBA, CANADA.

PENCIL CAP.

Application filed may 3,

To allwhom it may concern:

Be it known that I, KIRBY RICHARD GARNER, of the city of Winnipeg, in the Province of Manitoba, Canada, have invented certain new and useful Improvements in Pencil Caps (for which 1 have filed application in Canada, March 22, 1921), of which the following is the specification;

The invention relates to improvements in pencil caps and an object of the invention is to provide a simply constructed, light, neat, general purpose cap which will serve the purposes of holding a rubber, sharpenting the pencil and protecting the pencil point.

A further object is to construct the appliance so that it can be manufactured cheaply and eificiently and made from a single piece of metal suitably shaped and fashioned to serve several functions for which it is designed.

With the above object in view the invention consists essentially in a one-piece c ap presenting a split sleeve, a cone-shaped pencil sharpener and a rubber holder all.

integrally formed, the parts being arranged and constructed as hereinafter more particularly described and later pointed out in the appended claims, reference being had to the accompanying drawing in whichz Fig. 1 shows the appliance as applied on the sharpened end of a pencil.

Fig. 2 is an enlarged detailed face view of the appliance,pa'rts being broken away to expose construction.

Fig. 3 is a side view of the appliance.

Fig. 4 is a vertical ,sectional view centrally through the cap.

Fig. 5eis an enlarged detailed horizontal sectional view at 5-5' and looking towards the shoulder.

In the drawing like characters of reference indicate corresponding parts in the several figures.

The cap is made from a single piece of metal shaped to present a sleeve 1, a coneshaped pencil sharpener 2 and a rubber holder 3. The sleeve, 1 is split at one side as indicated at 4 and isof an internal diameter such that it will make a neat fit when applied on the end of a pencil 5. The split in the side of the sleeve allowsit to accommodate a slight variation in the diameter of the pencil and whilst maintaining a neat fit.

At the juncture point of the sleeve with the pencil sharpener ll form an outwardly 1921. Serial No. 466,425.

bulging shoulder 6 so that the internal diameter of the large end of the pencil sharpener is somewhat greater than the internal diameter of the sleeve. conical part 2 is as custom dictates, it being,

approximately, speaking, the same taper as is required on a pencil point.

Where the small end of the sharpener joins the rubber holder a small opening 7 is reserved but the neck at this point must be sufiicient'ly strong to prevent the rubber holder from breaking off when in use under normal conditions.

The rubber holder is a flat one presenting an elongated pocket 8 to receive'the rubber,

the ends of the pocket being split as indicated at 9 to permit the holder to expand and contract and the sides being cut and pressed in as indicated at 10 to form grips to catch the inserted rubber 10'. The tapering part of the cap is, in the present instance, provided with two diametrically opposing knives 11 and 12 which pass from a position at the neck downwardly to the shoulder and the cutting edges 13 and 1d of these blades are given a slight angular position, that is to say they do not pass longitudinally of the holder but have their inner or the ends next the shoulder terminating slightly to the side of a line parallel to the axis of the pencil. The blades are formed from the metal of the cap, being cut from the same and pressed. inwardly. After they have been pressed in the cutting edge is formed by cutting 0d the inner corners of the pressed in parts. lo'make this clear I might mention that .in actual practice the blade will be cut and pressed in by opposing dies and after the wing like blade parts have been formed a rotary cone shaped grinder will be inserted through the sleeve and will grind oi? the inner corners of the formed wings concentric'to the longitudinal axis of the cap and in so doing will form the cutting edges 13 and 1 1*.

As before intimated the blades are not cut through the shoulder but have their inner ends terminating adjacent the shoulder. lin having the inner ends of the blades entering possibility of the pencil being sharpened The blades'at the small or neck end of the sharpener are maintained a slight distance The taper of the the space beneath the shoulder I avoid any 5 apart so as to effectively operate on and point the lead of the pencil.

I desire also, in the forming of the blades,

' that the blades be pressed in further at the neck end than at the shoulder end so that they Will take a smaller cut at the larger or feeding end than at the other end and make it easy to make the first cut on the end of an unsharpened pencil.

I Wish here to call particular attention to the fact that Whilst this article is a combination cap I have made it from a single piece of tubing shaped to serve the triple purpose ofa protector, a sharpener and a rubber holder and this structural arrangement constitutes the invention rather than the bringing together of three independent Well known contrivances.

The arrangement is a particularly con- Signed at Winnipeg, this 14th. day of April, 1921.

KIRBY RICHARD GARNER. In the presenceof:

G RALD S. RoxBoRGH, K. B. WAKEFIELD.

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