US1334031A - Perpetual-calendar device - Google Patents

Description

G. F. HAHN.

PERPETUAL CALENDAR DEVICE.

APPLICATION FILED MAY 10, 1916.

1,334,03 1 Patented Mar. 16, 1920.

mu aw RIIIIIIII WITNESSES: I INVENTOR 6% Gab)" 17 251817271.

A llorneys GEORGE E. HAHN, or New YORK, N. Y.

PERPETUAL-CALENDAR Device.

' T aZZ whom it may concern: 7 Be it known that I, GEORGE 'F. HAHN, a

' county citizenot the United States, residing in the city of New York, borough of Manhattan,

vente a certain new and useful Perpetual- Calen'dar Device, of which the following is "a specification. I

This invention is a perpetual calendar device, and the object of" the invention is the provision of a calendar device which, while extremely simple in construction, is adapted, by virtue of slight manipulations, to correctly and simultaneously show the dates of all the days of any month of the year.

A further object of the invention is the provision of a device of the class described,

thestructure' of which is particularly applicable'for use in pen or pencil construction, whereby a person, using such pen or pencil,

is incidentally holding a calendar before him in convenient position to be observed as occasion requires. The'invention is, therefore, when incorporated 1n a pen or pencil structure, of great practical meritfo'r bookkeepers, clerks, and other persons who are required to frequently consult a calendar in making'calculations incident to their work. Its use is, however, not limited to this field,

a calendar within ready access.

as it is advantageous for all persons to have As most people carry a pencil at all times, they, by

having one embodying the present invention, derive the benefits of a unitary article adapted for adual purpose. Moreover, the last-mentioned object is accomplished without unduly encumbering or otherwise complicating the construction of the pen or pencil.

Features of the invention, other than those specified, will be apparent from the hereinafter detailed description taken in "conjunction with the accompanying draw-' in s. a V e I 11 the ,accompanying drawings I have illustrated difierent practical embodiments of the invention, but theconstructions thereinfshown-are to be understood as illustrative,

only, and not as defining the limits of the invention.

F igure 1 shows an elevatlon of the present H invention as adapted for use on the cap of a fountaina'pen.

' *Fig'. 2 shows the cap of the fountain=pen and calendar device in central section.

Specification of Letters Patent.

"A plication iilcd ma 10, 1916. serial m. 96,533.

and State of New York, have in-' Patented Mar. 16, 1920. v

vcntion to a pencil cap, saidcap being shown' half in section and half in elevation. Figs. 4 and 5 show a modified form of the invention wherein the cap shown in Fig. 5

is adapted to cooperate with the pencil shown in perspective in Fig. 4 w produce the results desired. Fig. 6 is a section on line 6 6 of Fig. 5, and v v I v Fig. 7 shows the development of the sur face on which the numbers designating the days of the month are printed or "otherwise delineated. I S f As heretofore stated, the invention is particularly adapted for employment in pen; I

or pencil construction, "and, accordingly, its

adaptation to this environment forms the illustrative showing in the accompanying drawings. v v

In said drawings, and referring more particularlyto Figs, 1, 2 and 7, the invention is here shown as incorporated in the construction of a cap A for a fountain-pen B. Pen B is of the usual form, but cap A is provided near its base with an annular flange forming a shoulder a. The portion of the cap ex tending from shoulder a to the closed end of the cap is cylindrical shape, and encircling said cylindrical portion is a sleeve C which extends to the end of the cap and is adapted to be locked against rotation thereon by means of a thumb-screw D, the shank (Z of which threads'into the closed I end of cap A. When thumb-screw D is loosened, sleeve IC frnay be rotated at will, but may belocked'in any desired position by tightening said thumb-screw. a p

Sleeve C is provided with seven lon'gitudi nally eXtendingslots or sight openings 0, each of which is designated in accgordance with one dayof the week, such as..F. 'for"' Friday, S for Saturday, $11 for Sunday, etc. Upon the cylindricahportion of cap A are printedor otherwise delineated thirty-one consecutive numbers ranging from 1 tof31, inclusive, and ar ranged in fivesuperimposed rows, the first four rows embodying seven numbers each, and the remaining numbers'jbeing in'the fifth row, The numbers are so arranged, that they are in alinement'both Vertically andhorizontally, as shown in Fig. 7 The relation between sight openings 0 of'sleeve C and the thirty-one. consecutive numbers j printed on the cylindrical portion of the cap Fig. 3 illustrates the adaptation of the inissues that, when saidsleeve i's' manipulate so that one number shows through one sight appear 7 will show through openings 0, but, sincethe dates of the different months do not always fall upon the same day. of the week, itis necessary to properly manipulate the device to obtain the correct relation between the dates of the month and the days of the week for any particular month of the year. may be accomplished by rotating sleeve 0 so that number 1 printed upon the cylindrical portion of cap A will show through slot 0' corresponding to the day of the week on which falls the firsti 'dayrof the month which it is desired to have the calendar record; 6. 9., April 1, 1916, falls upon a Saturday,and, accordingly, to adapt the device to record the month of April, sleeve C should be turned so that the numeral 1 willshow through the aperture 0 delineated S (Saturday), Thishaving been accomplished, it will be found that all of the dates of the month will beshown through the respective sight openings 3 in their proper relation to the days of the week.

, If the month of May were tobe shown, the

sleeve would be manipulated so that the numeral 1 would show throughthe opening designated m, since the first of May falls 'on a Monday." In like manner, any particular. month desired may be shown by a s1m-' :ple manipulationof sleeve C, and, in the j embodiment shown in Figs. I and 2, this, as

, stated, may be: accomplished by loosening.

thumb-screw D toflallow of the rotation of the sleeve. After the manipulations desired have been 'inade, thumb-screwfllis again tightened to lock the sleeve against inadvertent rotation.

,7 In Fig. 8, the'invention is shown as adapted for use on a pencil cap of the ty'pe'generally formed from sheet metal. By virtue of the formation ofthese caps, a simplified construction IS POSSlblB over that necessary fol-use in fountain-pen c aps." Thus, a cap A" is shown as provided" with a revoluble sleeve Q providedwith, a plurality of sight openings 0 and secured tocap A by turning the edges 6 'oflthe sleeve into annular channels a formed in cap A.

p The turned- 1n portlons e1 engage with channels rather tightly, so that sleeve C" will not inadve'rt ently shift, but, by grasping the sleeve tightly, it may 'be readily manipulated to V 7 show through the sight apertures c the days of the month delineated upon cap A and at that portion thereof which underlies sleeve C. i e

n Figs. 4,15; and. e, the invention is illustrated 1n itsadaptation directly to a pencil.

In the embodiment. shown, the .pen cil'E is with seven fiat. sides, corresponding This 'ner shown in Fig. 7, are the thirty-one consecutive numbers, said numbers being posi: 13101166; directly upon the pencil. With a pencil so formed and marked is adapted to cctiperate a cap A also formed with seven flat surfaces, as shown in Fig. 6, and operable to fit over the end of pencil E. Cap A is provided with seven sight apertures c of sufficient length'to show the five rows of figures therethrough, and each aperture of which is, as described'in the previous embodiments of the invention, designated in accordance with'the days of the-week.

The manner of manipulating the'form shown'in Figs. sand 5 is substantially the same as that described relative to the other forms of the invention, With the exception that, because of theangular or polygonal character of the cooperating penciland cap, the parts cannot be rotated relative to one another,but, in making the manipulations described, cap A is removed from thefpencll and again positioned thereon in proper relationto' the dates of the month; 'Of course,

if'desired, the pencil'mightbe made circular and cap 32 might be correspondingly formed, but it is preferable that the angu lar construction be employed, as such conpocket.

It will be apparent, from the foregoing del scription, that the calendar device of this invention may,'by slight manipulations, be made tocorrectly' disclose the corresponding days, and dates throughout any desired month of the year. "Moreover, the construe tion is suchthat the device is of a perpetual character; that is to say, it may be used from year to year without necessitating any change in the numbers, butsimply requiring.

slight manlpulations to compensate for the variations in the dates on whichfithe several days of the week fall. V a Q The invention, particularly when adapted to pen andipencil construction, is .of'great utility, since, as hereinbefor'e; stated,fa person, using thep'encil or pen in the course of bookkeeping or other similar work,has directly in his line of vision a calendar which willenable him to quicklyand readily ascertain such dates as, maybe desired, without the necessity. of looking up at calendar pad, or,--1f such is not at. hand, of hunting for one. Theadvantages of this invention are, moreover, derived Without unduly en-. cumbering the'pen or pencil. In. the interest of ,clearness, the parts are shown inthe drawings on a somewhat enlarged scale, but,

in practice, they may be made much smaller so as not to appreciably enlarge thei'parts of the pen or: pencil. j

It will, of course, be understood that the invention is not limited to the specific struc tural characteristics shown, as these might be varied in adapting the invention to different environments, and that the invention is to be understood to be as broadly novel as is commensurate with the appended claim.

Having thus fully described the invention, what I claim as new, and desireto secure by Letters Patent, is:

In a perpetual calendar device, a cap adaptedto fit over the end of a pen or a pencil and having a pocket in one end thereof, to receive such pen or pencil, numbers corresponding to the days of the week delineated on the outer face of said cap in seven vertical parallel columns, a shoulder circumferentially of the cap, a sleeve surroundin the cap and seated on the shoulder thereo said sleeve being normally rotatable and provided with parallel slots, to designate the days of the week in accordance with the seven vertical columns of numbers on the cap, and'a thumb screw threaded into the closed end of the cap, and adapted to engage with one end of the sleeve, for frictionally locking, the sleeve against rotation by forcing it firmly to its seat on the shoulder of the cap. V

In testimony whereof-I have signed my name to this specification.

v GEORGE F. HAHN.

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