US1249579A - Pencil-pointer. - Google Patents

Description

'A. P. WILSON PENCIL POINTER.

APPLICATION FILED NOV. 6. I913.

Patented Dec. 11, 1917.

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ALLEN P. WILSON, 0F WALTHAM. MASSACHUSETTS. ASSIGNOR TO BOSTON PENCIL rom'rnn COMPANY, '01 WALTHAM.

MASSACHUSETTS.

To all whom it may concern:

lle it known that L'ALLEN I. Wmson, a citizen of the United States, residing at \Vultham, in the county of Middlesex and Stateof .Massachusetts, have invente(l certain new and useful Improvements in Pencil-Pointers; and I do hereby declare the fol lowing Specification. taken in connection with the accompanying drawings, forming a part of the some. to be a full, clear, and ex act description thereof.

The invention relates to pencil pointers and has for its object to produce 'a pencilpointer which will remove thewood from the lead in such. n manner us to expose more of the lead and thereby produce u point which will Wear longer'and require less frequent shurpening than the points now produced. p I

To these ends the invention consists in the novel combination and arrangement of parts "the character of port.

hereinafter described and more particularly set forth in the claims.

In describing tne invention in detail, rot

erence will he had to the accompanying drawing. in. which-- 7 Figure 1 is a side elevation of my novel pencil pointe Fig. 2 is top plain view of the cuttercarrier.

Ijig. 3 is a carrier.'

a sectional view on line -Ql,

a side view of a pencil showing point produced by the ini 'proi'ed pointer. I Referring to the drawings 1 representstlie standnrd-ofthe'inachine, which is provided a suitable foot portion 2 by means of whieh'it may be secured to a suitable sup- T he standard "1' has- 'formed integral tli'crewitl'in'hlaad portion 3 and an elongated hearing t for the shaft of the cuttcrmarri'er.

is wumaled is provided at.

The head-portion 3 is recessed and isprovided withla' series of internnl gear-teeth 5, us, shownin l i-gv 4.

The cutter-carrier 6 is atone end .Withn shaft 7 which in the elongated fbearin 4 and oneend' with a". hen e 8 by meansof. which the cuttermarmer is. revolved and at theiotlier end" is'prov'ided, with a. tu-

' iding portion9 into Wh1( lh u'lar' pencil? encil, inserted while' t s'bemg sharpl'Ihe n itter-carri'er iso'pe'nat its center Specification of Letters Patent.

front end view of the cutten plane-in common tothe axis" qf'said carrier,-

MASSACHUSETTS, A COBBORATION OF PENCIL-Pomona.

Patented Dec. 11, 1917.

APPliGfltion filed November 6, 1913. Serial No. 799,588.

portion and two rotary cutters 10 having .spirul cuttenbludesure mounted upon spin dies 11 'to rotate in said open center portion and are pik ritlecl at one end with cars 12, which; are arranged to mesh with t e internal gear-teeth 5 in. the head portion.

Said rotary cutters 10 are arran ed at both a horizontal and a vertical indline to the longitudinal axis oft-he cutter-carrier and also to the longitudinal axis of the pcncitguide 9. as shown in Fig. 3, and this double cnnting or inclining of the rotary cutters in both a vertical and horizontal di rection causes said cutters to operate upon the pencil in such a manner as to remove more of the wood and expose mlonger pointed lend than is the case when said cutters a re canted or inc-lined in only one direction as heretofore.

It will be seen thit the amount of wood removed andthe amount of lead exposed during the sharpening of the pencil can be V8."

longer than would he the case it the cutters were inclined in only one dircctioi'i It will. also be seen that this increase in the length of the lead will enable the pencil to be used for a longer time before it becomes necessary to reshur-pen the some, andthnt thus the wear on the pencil pointer will be greatly diminished and its efficiency-and usefulness correspondingly lengthened.

, What I claimas In j invention and desire to secure by Letters st rn is: i 1

1. In a pencil sharpening machineorthe like, a rotntahly mountdcutter-carrier and a. cutter mounted therein, suidcutte'rhaving. its axis arranged longitudinally andin the general direction of te axis ofthe'cutr plane in common to the axis of said cuttercarrien, V

2. Ina pencil-sharpening machine or the 1ike,.a rotatcbly mounted cutter-carrier and, 105

tu dinally and in the-general direction of the axis of said cutter-carrier, and having iii'otar-carrier, and sodisposed as to have no" 3. In a pencil sharpening machine or the like, a rotatably mounted culter-carrier and two cylindrical rotary cutters mounted therein and provided with spiral .cluting edges, each of said cutters having its axis arranged longitudinally and in the general direction of the axis of said cutter-carrier and having 110 plane in common to the axis of, said cutter-carrier.

4-. In apencil sharpening machine or the like, a rotatably mounted cutter-carrier and a, rotary cutter mounted therein cmnprising a base and a curved surface of revolution with the cuttih portion located wholly on said curved surtace of revolution, and having its axis of revolution so disposed. as to have no plane in common to the axis of said cuttcncarrier.

5. In a pencil sharpening machine or the like, a rotatably mounted cutter-carrier and two rotary cutters mounted therein, each of said cutters comprising a base and ac-urved surface of revolution, with the cutting ion tion located wholly on said curved surface of revolution, and having its axis of revolution so disposed as to have no plane in (.(Jlllmon to the axis of the other of said utters.

6. In a pencil sharpening machine or the like, a rotatably mounted'cutter-carrier and

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