US1810788A - Fountain drawing pen - Google Patents

Description

June 18, 1931.

J. RAMOS FOUNTAIN DRAWING PEN Filed NOV. ll. 1929 Juanma' lll/)f4 v ATTORNEY Patented June 16, 19.31

JUAN RAMOS, F LONGAPO, PHILDPIN ISLANDS i room-1N :DRAWING PEN J.Amalica'cioii led November 11, 192.9. Serial In. 406,388.

The invention relates to drafting implements or instruments, particularly to drawing pens, and has for its object the provision of a novel drawing pen having a fountain or reservoir for ink whereby charges of ink may be repeatedly or successively fed to the nibs or blades of the pen for replenishing the supply from time to time instead of either dipping the pen into a bottle or well of ink m or depositing between the nibs or blades a charge of ink remaining upon the quill afdxed to the stopper of the bottle in which drawing ink is commercially put up. An important object of the invention is to i5 provide a fountain drawing pen in which only a predetermined chargeof ink is supplied to the pen point, nibs or blades, it being well known that it is not practical to sup ly too great a quantity in view of the facttgat 2@ ink of this character, usually india ink, ordinarily dries out very rapidly, in fact more quickly than it can be used.

A more specific object is to provide a fountain drawing pen of this character which is manually operable from time to time to reand operate, positive in action, ecient. and

durable in service, and a general improvement in the art.

``With the above and other objects and advantages in view, the invention preferably ai) consists in the detailed construction and the arrangement and combination parte to be hereinafter more fully described and claimed, and illustrated in theaccompanying drawings, in which 4:5 Figure 1 is a vertical longitudinal sectional view through the pen showing the normal position of the parts.

Figure 2 is an elevation taken at right angles to Figure 1.

Figure 3 is a view. partly in elevation and of the body 10 so that the peripheriesof partly infseotion showing the parts in the position necessary to replenish the supply for the pen.

. Referring more particularly to the drawings, I have shown the pen as comprising an elongated metallic body portion 1Q having a bore 11 therein and terminating in a pair of resilient blades or nibs 12, one of which carries a screw 18 projecting through the other and equipped with a nut 14 for adjusting purposes so that the distance between the points 15 of the blades maybe varied in accordance with the width of line desired.

Obviously, any equivalent structure for this device also includes a combined handle and 72 reservoir 17 which may be of any desired material and which has one end open and normally closed by a removable screw cap 18. This member is intended to be illed with ink and it is for this reason that the cap 18 is madedetachable so that a new supply may be added from time to time as needed. Preferably, though not necessarily, the diameter of the reservoir member 17 is substantially that both will be iush to avoid a shoulder at they joint between the two. This handle member or reservoir 17 is represented as having-a reduced portion 19 intermediate its length eX- teriorly' threaded to be engaged within the threaded enlargedportion 16. Beyond this intermediate threaded portion 19, the handle or reservoir member 17 is formed with a still further reduced tubular extension 20 which fits within the bore 11 and which extends downwardly to a point'considerably beyond or below the juncture of the blades or nibs 12 with the body 10, beyond which points this tubular extension 2O is additionally constricted, as at 21 to form a valve seat and then tapered or? to provide an'extension 22, having a bore ci equal cross section throughout its len. th, This extension 22 is ppen at its end an is adapted to be closed by means to be described it Shauld also be observed mi that the constricted portion 21 and extension 22 constitute a valve seat. y

Slidably mounted within the extension 22 is a valve device including a stem 23 formed or otherwise provided at its upper end withl an enlargement 24 constituting a valve adapted to slide within and to coact with the bore of the constriction 21 for preventing flow of ink from the reservoir 17 when the valve is pushed downward. At its other end, this stem 23 carries another` enlargement constitutin another valve member 25 vwhich ordinarily fits snugly within the end ofthe extension 22 and which terminates in a tapered point'26 adapted to be projected downwardly into a position between the points 15 for cleaning the points, that is to say lremoving therefrom any accumulation of dried ink remaining from a previous charge. The head or end 25 normally closesthe endlof the extension 22 for preventing any ink from flowing out of the reservoir. The means for controllino' the position of or operating the valve device comprises an angularly shaped rod 27 which is located at and slidablevalong one side of the body to a guide 28 and which has one end formed with a handle which may be simply a lateral extension 29, and which has its intermediate portionrightangularly olfset, as shown at 30, and extended between the blades 12 and connected with the head 25 near the end 26 thereof as clearly indicated. The

stem 23 is smaller in diameter or cross section than the bore of the extension 22 to provide space for the predetermined ink to be deposited onto the points 15. The stem 23 is also shorter than the extension 22 so that, when the valve `is moved downwardly as hereinafter described, the constriction 21 is closed by the enlargement 24 before the extension 22 is opened by the enlargement 25 in order to prevent additional ink to be deposited from the reservoir 17 into the ex.

tension 22 during said downward movement of the valve.

In the operation of the device, it will of course be apparent that the cap 18 canbe removed so that the reservoir or handle mem-- ber 17 and tubular extension thereof may be filled with drawing ink of proper kind. After this, the cap 18 is of course replaced to prevent loss of the ink during handling of the pen. When it is desired to place a charge of ink between the points 15 or between the blades 12 near these points, it is merely necessary, assuming that the parts are in the position shown in Figure 1, for the operator to grasp or otherwise press upon the extension 29 at the upper end of the rod 27 and move the rod 27 downwardly or toward the points or nibs of the pen. Whenthis 4is done, it is of course apparent that the valvedevice comprising the stem 23, the enlargement 24 and the head 25 moves downwardly, the movement beingpermitted which is then below the extension 22 and will be conducted thereby to the space'between the points or nibs 15. Before the head `25l opens the end of the extension 22 the extension 24 slides through the constriction 21 and prevents any additional ink from flowing down to the pen points. Incidently-'it might be mentioned that after the pen has been in use for a time, the time being such that replenishing of the ink supply is neces-V sary, the point 26, which may be of a knife bladeconstruction, in passing between the nibs or points 15 will operate to remove therefrom any accumulation of dried ink which may be thereon. After the supply has been replenished in the mannerset forth, it is intended that the operator then pull up onl the extension 29 so as to restore the stem 23 andthe valve extension 24 and head 25 to original position, the head 25 then closing the discharge -end of the extension 22 just before the extension 24 is spaced away from the constriction orseat 21, to permit ink to flow from the reservoir or hollow handle 17 down around the stem 23 into the extension 22 ready for the next charge. As the ink is used up, it will of course be necessary that the supply be again replenished whereupon the operator again presses downwardly upon the extension 29 to force the stem 23, carryingthe extension- 24 and head 25, downwardly to permit the quantity of ink Within theextension 22 to drop out onto the head 25 and be conducted by the point 26 to the space between the nibs or points.

F romthe foregoing description and a study of. the drawings it will be apparent that I have thus provided a very simple means whereby a predetermined quantity of ink contained within a hollow handle con-- stituting a reservoir may be discharged from this reservoir into the space between the nibs or points of a. drawing pen so that there will be an adequate supply for drafting purposes. In order that the valve device or measuring element may be normally maintained in its uppermost position, I may make use of a spring 32 which operates normally to force themember 27 upwardly so that the parts are always in such position that they will be ready to supply a new charge of ink to the pen points upon downward movement of the rod or other element 27. Attention is invited to the fact that the point 26 operate to remove any accumulation of dried ink tension 24 and the length and the diameter of the stem 23 are such, as compared with the length and diameter of the extension 22, will insure the proper feeding of only the necessar and proper amount of ink to the pen wit out flooding and yet on' the other hand without requiring too frequent manipulation of the feed means. It is really believed that the construction, operation and advantages will be readily apparent from the foregoing without further explanation, provided one is skilled in the art.

While I have shown and described the preferred embodiment of the invention2 it should be understood that I reserve the rlght to make all such changes in the details of construction as well as in the general arrangement and combination of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, I claim 1. A fountain drawing pen including a hollow body having drawing blades extendin from one end and the opposite end interna ly screw threaded, a reservoir having a reduced portion threaded in the body and extending through the latter and disposed between the blades, a second reduced portion of adiameter less than the diameter of the first reduced portion and formed integally .therewith and providing a valve seat tween said portions, a combined cleaning and ink applying member extendinginto the free end of the second reduced portion, a barrel in the first reduced portion to engage the valve seat, a stem connecting the barrel to the combined cleaning and ink applying member and of a length to unseat the valve when the combined cleaning and ink applying member is positioned to close the end of the second reduced portion and to seat the valve prior to the combined cleaning and ink applying member fully disengaging from the end of the second reduced portion, and an operating means slidable on the exterior of the body and connected to the combined cleaning and ink applyin member to move the latter into and out o engagement with ,the free ends of the blades.

2. A fountain drawing pen including a hollow body having drawing blades extending from' one end and the opposite end internally screw threaded, a' reservoir having a reduced portion threaded in the body and extending through the latter and disposed between the blades, a second reduced portion of a diameter less than the diameter of the first reduced portion formed integrally therewith and providing a valve seat between said portions, a combined cleaning and ink applying member extending into the free end of the second reduced porp tion, a valve in the first reduced portion to engage the valve seat, a stem connecting the valve to the combined cleaning and ink applying member and of a length to unseat the valve when the combined cleaning and ink applying member is positioned to close the end of the second reduced portion and to seat the valve prior to the combined cleaning andink applying member fully disengaging from the endcof the second reduced portion,

a guide on said body, and a springpressed

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