US294477A - Pen-holder - Google Patents

Description

No Model.)` F. M...LIBBY.

PEN HOLDER, N0. 294,477. u w PatetedMar. 4, l1884.

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PATENT OFFICE. i

FREDERIC M. LIBBY, OF PORTLAND, MAINE.

PEN-HOLDER.

SPECIFICATION forming part of Letters Patent No. 294,477, dated March 4, 1884.

' Application filed August 30, 1883. (No model.)

To all whom it may concern.-

Be it known that I, FREDERIC M. LIBBY, of

Portland, inthe countyofCumberlandandState of Maine, haveinvented certain new and useful Improvements in Pen-Holders; and I do here` by declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, refereuce being had to the accompanying drawings, and to letters of reference marked thereon, whichl form a part of this specication.'

Y Figure l is a side sectional view of a penstock with my improvement thereon. Fig. 2 is an end view of a pen-stock with the same.- Fig. 3 is a side sectional view with pen inserted.

Same letters show like parts.

My invention relates to pen-holders in penstocks. It is intended to impart elasticity or a yielding property to the peu when it :is pressed upon the paper in writing. This quality of yielding affords great relief to the fin-- gers and wrist in Writing and prevents much of the fatigue and pain consequent upon the use for a long time of a pen that is stift' and rigid in the holder and stock. The pen, when placed in my holder, has a slight tipping or vibrating motion when pressed on the paper, and so relieves the writers hand to a very considerable degree.- I accomplish this result by holding the pen in its stock or holder so that the rear or inner end of the pen is free to move or vibrate slightly, thus imparting to the point or nib the yielding quality spoken of. With this view I construct la screw, a, with a head, b, and shank c. The screvir enters the solid part of the pen-stock at f, and thus holds thehead b at the proper point in the stock. It will thus be seen that only a small part of the pen bears on the head b, and

that the back part ofthe pen is free to tip or vibrate slightly when. the point is pressedv upon the paper.

The degree of rigidity with which the pen is held is regulated in avariety of ways iirst,

, by the width or bearing-surface of the head b,-

pen upon such a bearing as insures a greater degree of rigidity than the other bearing. In

parts of the head that form the narrow circlethe head b goes 'up under the shank of the spaces 7L h. In the second instance the sides or edges of the shank of the pen rest upon the solid oblique portion of the head b, and consequently displace more space and give a at the same time leaving a certain degree of elasticity to the pen.

, In Fig. 2 is seen the shape of the head b in end view. It will4 be seen that it is not perfectly round, but that it has one diameter somewhat less than the other. The head can be made of any number of sides or curves and accomplish the same result, so long as the form of the head is preserved, in order that it may act as a fulorum or pivot. The object of using this form of head is this: When the pen isvinare in the spaces h h, and the sides of the shank are pressed upon downwardly by the tip or ferrul e, and held firmly in the stock Without any side motion. I make the slot in the head b for the sake of ease in removal of the head, and in order to guide the user in the insertion of the pen into its place in the stock-that is, when the penis inserted with the shank across the slot, the pen is held in one way, and in a different way when inserted, so to speak, parallel with the slot. The pen can be held with a longer or shorter bearing, as desired, by varyingthe width of the head b. It is evident that the head can be removed in case of clogf ging with ink, cleaned, and replaced. The head can be made solid if a heavy holder is desired, or hollow if a lighter one is wanted.

The tipping or vibrating capacity of the pen is the chief result aimed at by the use of the pressed on the paper in writing. Some pens in the same box, and'all manufactured to be of uniform quality, are stiff, others limber. Thus there is no certainty; but the different conditions of the joints and muscles of mens hands absolutely require for ease in writing elasticity or rigidity. This result is accomplished by my invention independently of the pen, while the sidesof the shank rest in the the rst instance-placing the pen over thej greater degree of 'firmness or rigidity, While serted into the stock at t', the edges of the pen head, or an elastic condition of the pen when Toc quality of the material of the pen. By my device a freedom of motion is given to the inner end or shank of the pen, which gives elasticity to the pen inl use. If it is desired to have the nib of the pen point downwardly, the head b is entered farther into the hollow end of' the stoek. This tips up the shank, and so turns downward the nib or point. Drawing out the head turns the nib upwardly.

With my holder a pen is always easily removable froln the stock, and can also be easily inserted into the same. If a hollow rubber or Celluloid holder breaks or splits, it can be eut off' as far as split, and the holder or head Z, and the whole still be useful. It will be seen that a pen can be held either loosely or rigidly, as desired., in my invention.

\Vhat I elaim, and desire to secure by Letters Patent of the United States, is-

The combination, with a hollow pen-stock having a solid portion toreeeive the screw a, of the screw a and head b, the said head being shaped as herein set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of 25 two witnesses.

FREDERIC M. LIBBY. Vi tnesses:

NVILLIAM HENRY CLIFFORD, NEwnLL W. Ensor".

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