US1042695A - Fountain-pen. - Google Patents

Description

J. W. LAUGHLIN.

FOUNTAIN PEN. APPLIGATION FILED APR. 2o. 1912.

Patented 00E. 29y 19H3.

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AllIES W. LAUGHLIN, OF DETRGT, MICHIGAN', SSIGNOR, TG GATHERNE Ii. L UG-HLIN,

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Specication of Letters Patent.

Application led April 20, 1912.

.I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains' to make and'use the same.

This invention relates to improvements in fountain `pens, and particularly to that class in which'inclosedA compressible filling reservoirs are employed-one object of the in vention being to provide simple and eicient means for preventing the complete vwithdrawal o' the shell section of the holder from the tube which incloses the compressible reservoir when said shell section is removed to permit access to the compressible filling reservoir.

A further object is to provide means to` prevent leakage when the cap is inplace when the pen is not in use. l

' With these objects in view the invention consists in certain novel features o'v construcv tion and combinations of parts as hereinafter described and pointed out in the claims.

In the accompanying drawings, Figure l is an enlarged sectional View of a fountain pen embodying my improvements, Fig. 2 is an elevation, partly in section, takenn at right angles to Fig. 1, and Fig. 3 is a View similar to F ig. 2 with the movable shell section distended.'

l represents a metallic tube provided Iintermediate ot its ends with an opening 2- and forwardly of this opening, a hard rubber shell section 3 is secured to the metal tube,-the rear end of said shell section terminating somewhat in advance of the forward end of the opening 2 so that when a movable shell section 4 on said metal vt-ube,. is moved so as to abut against the rear end of the shell section 3, it will completely coi/er the opening 2 and slightly overlap the up# per end of the latter. The forward shell section 3 carries a pen section 5 in which a suitable pen point and feed-bar are located. A collapsible reservoir 6 (preferably of soft rubber) is inclosed within the metal tube l and the forward end of this collapsible reservoir is attached to ka nipple 7 on the pen .Patented oeaaaieia. Serial No. 692,095.

section 5. A presser-bar 8 is disposed With- 1n `the metal tube; normally rests against the collapsible reserv0ir, and extends past the opemngvl 1n the metal tube so that access, may be had lto said bar for compressing the reservoir. The forward 'portion of the presser-bar is. connected with the metal tube by means of a link 18 pivotal'ly attached atits respective ends to said bar and tube.'

With this construction, when the presserbar is pressed by the operator, the reservoir will be deated from the u per toward the lower' or pen end of said 'reservoir and said presser-bar will also have a slight forward movement. ln order to induce the op crater to press forwardly as well as in- Wardly or downwardly Aagainst the presserbar in the act of delating the Ieservoir,

protuberance 9 to be engaged by the thumb 4 or linger of the operator.

It i's desirable to prevent the complete removal of the shell section Il from the metal .tube 1. when said shell section is moved to expose' the nger opening .2 of said metal tube. To accomplish this result, features of construction which will now be explained 'are employed.

A [cap 10 is secured to the rear end of the metal tube in any suitable manner and the peripheral edge of this cap projects slightly beyond the peripheral face of the metal tube. The internal diameter of the movable shell section 4 is vslightly greater at its upper portion than at its forward portion for the accommodation of the projecting peripheral edge of the cap 10. By thus constructing the interior of the movableshell section' 4 'an annular shoulder l2 is formed `Within the forward portion of said shell vsection to be engaged by the projecting peripheral edge of the cap 10 when said shell section is presser-bar is provided with a slight moved on the metal tube l to expose the nger opening in the latter. ln this manner an eliectual stop is formed to limit the move- .ment of 'the shell section Il and prevent its removalfrom the tube 1; The cap 10 is 'provided with an elongated slot 13 through which the upper end 'of the presser-bar passes and in which said presserbar is guided. ln assembling the movable shell section 4 on the tube' 1, one end ot said shell section maybe left open and after the parts shall have been assembled, the open end 'of

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