US74720A - Improvement in pens - Google Patents

Description

. A@uitrit gta-tea @anni @flitsen Letters Patent No. 74,7120, dated February 18, 1868.V

IMPROVEMENT IN I IINS.

llg Stimuli' winnt 'tu in tiges Entert prima' animating part if -llg sana.

T0 ALL WHQMJT MAY OONCERN:

Beit knownitbatvI, E. L. PRATT, of Boston, in the county of Suifolk, and State of Massachusetts, have `invented an Improved Ink-Fountain or Reservoir for Pens; and I do hereby declare 'that the following, taken in connectionwith the drawings which accompany and formpart of this specification, is a descriptou'of vmy invention suilicient to enable those'skilled in the art to practise it..

Thisinvention has for its object the common object of otherattachments to pens, viz, to enable the pen to `take up 'and to retain a considerable vquantity of ink, which will afterward be given out orrrill flow equably from the reservoir or -fountain to the nib of the pen, till the `supply is exhausted.

Other devices than mine having been used, I consider that my inventiouis simply a new article of manufacture, constructed and arranged with reference to the pen in the manner which I will now describe, referring to the drawingsg lFigure 1 being a view of the concave side of a. pen, with my reservoir attached thereto.

Figure 2 beingl a longitudinal section through the peu and the attached reservoir, while Figure 3 isa plan of the reservoir or fountain detached fromthe pen, the plan showing the convex surface of the reservoir. Y t i The reservoiris made up of'one pieceof metal, cut and properly, bent by swaging in dies, from a strip ot' which about 'onehalf is finely perforated, the width of the strip being suilcient for the length ofthe reservoir.

Near the head ot'. the'reservoir tivo slits are cut nearly across the widthof the piece, 'and the metal contained between -the slits is then stretched so as to leave a space between this narrow strip of metal and the body of the piece, and so that the narrow strip which is marked a forms a band,"whch passes 4over the back or con- Vex surface'of the pen, binding andholdingfthe reservoir to the innerpor concave surface thereof.

The body of the reservoir at the `location 4ofthe band is made wider than the pen with whichit is to bc used', and the reservoir, as* to outline and conformation, is otherwise made substantially as shown in 'the drawings, by reference to which, better than by written description, any competent mechanic will be enabled to understand the form of myi'mproved reservoir.; l

Y. Refereucetog. 2 will clearly show that there are three spaces, 1, 2, 3, between thepen and the reservoir,

:along the centrelline'of the pen, but at the-edges of the reservoir'it is so shaped that said edges fitclosely upon i theinnerorl concavesurface of thefpen. v

With the spaces betreen the reservorand vthe pen the perforations inthe material of the reservoir communicate, so that when the' pen and reservoir combined are'dipped in the ink,tbe' luid is drawn byv capillary attraction through the perforationann'd llsthe spaces between the pen and the reservoifrom which spaces tbelink ilows tothe niblof the pe'n, throgl:rtvhe, groove seen at b, in the lower end of the reservoir, this-flow vfrom the enclosed spacesl 2 3 being permitted, becausethe airV has free access to. the said spaces or the ink *therein-,7 throughithe perforations.` l s It will beievident that the pressure on the nib of the pen will deflect tl1epen from the point of the reser- Voir, so the ink will have an increased -iiow' to. supply aheav'y stroke. The reservoir, can be'adjusted at pleasure along the length. of the pen, while it can be entirely detached for cleaning'.

'I claim as a new article of. manufacture, a fountain orV reservoir, designed' for use in combination with a pen,.when' madewith a perf'loratiom'c, aV band, a, and corrugations 2 3, all arranged substantially as and for the purpose described. Y

n. L. PRATT.'

Witnesses y FRANCIS' Gouw, L. H. LATIMEB.;

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