US2126540A - Fountain pen - Google Patents

Description

Aug. 9, 1 938. B. H. DlcKs l FOUNTAIN PEN Filed Deo. 29, 1957 ATTORNEYS Patented Aug. 9, 1938 UNITEDl STATES PATENT oFFlcE FOUNTAIN PEN v Beauford Harold Dicks, Athelstane, Wis. Application December 29, 1937, Serial No. 182,347

3 Claims.

This invention relates to fountain pens and has for an object to provide a fountain pen having a replaceable ink tube and valve. therefor to promote an easier and cleaner refilling of a fountain `parts of the fountain pen while other parts of the fountain pen, namely, the cap on the end of the barrel, may be rotated to turn .the tube axially in the valve and selectively open and close the valve to control the ink supply to the pen point.

A further object is to provide a fountain pen so constructed as to interchangeably receive fillers or ink tubes containing ink of respectively distinctive colors.

A further object is to provide a fountain pen of" the type described which will be formed of a few strong simple and durable parts, which will be inexpensive to manufacture and which will not easily get out of order.

With the above and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that Various modifications may be resorted to within the scope of the appended claims without departing from the spirit or sacricing any of the advantages of the invention.

In the accompanying drawing forming part of this specification,

Figure 1 is a side elevation of a fountain pen constructed in accordance with the invention and showing the rotatable cap on the barrel together with legends for indicating the position of the valve.

Figure 2 is an enlarged longitudinal sectional view of the fountain pen, showing the valve open.

Figure 3 is a detail cross sectional view taken on the line 3 3 of Figure 2 showing the `clip and the sleeve in top plan.

Figure 4 is a detail cross sectional view taken on the line 4 4 of Figure 2 showing the guide pin carried by the valve and ink tube assembly.

Figure 5 is a detail cross sectional View taken on the line 5 5 of Figure 2 showing the squared wrench head on the ink tube received in the socket in the cap and showing the guide pin carried by the cap engaged in a bayonet slot in the barrel.

(Cl. 1Z0-48) Figure 6 is an enlarged detail plan view of the ink tube and valve assembly.

Figure 7 is a longitudinal sectional view of the ink tube and valve assembly taken on the line T 'I of Figure 6 and showing the valve closed.

Figure is a cross sectional view taken on the line 8 8 of Figure '7 looking in the direction of the arrowheads.

Figure 9 is a detail side elevation of the end of the barrel with the cap for turning the ink tube removed.

Referring now to the drawing in which like characters of reference designate similar parts in the various views, I0 designates the fountain pen barrel, II the sleeve, I2 the clip, and I3 the sleeve clamp button for securing the clip inplace. `The bore of the barrel is substantially cylindrical and is adapted to receive a similarly shaped filler or ink tube III which may be formed of any desired material. One end of the tube is I provided with a squared wrench head I5 whichV is receivable in a socket I6 formed in a cap I1 that is slidably and rotatably mounted on a r-educed collar I8 formed on the end of the barrel.

The collar is provided with a bayonet slot I9, best shown in Figure 9, to receive a guide pin 20 carried by the cap. Manual rotation of the cap turns the ink tube Ill on its axis.

As best shown in Figure '7 the end wall 2l of the ink tube, opposite the wrench head I5 is provided with a port 22. The cylindrical wall of the tube near the port is provided with a circumferential groove 23. A substantially cylindrical valve 24 is assembled as a unit with the grooved end of the ink tube and for this purpose a rib 25 is spun or otherwise formed in the valve to rotatably nest in the groove 23. The valve is provided with a diaphragm 26 having a port 21, best shown in Figure 8, adapted to be brought into registration with the port 22 in the end wall of the ink tube to permit the contents of the ink tube to escape. Beyond the diaphragm the valve is provided with a squared wrench head 28, best shown in Figure 6.

The wrench head 28 is for the purpose of holding the valve stationary while the ink tube is turned on its axis to dispose the ports 22 Iand 21 selectively in registration or out of registration. The part of the pen which holds the valve stationary is the nib 29, the same having a squared socket 3D, best shown in Figure 4, to receive the wrench head 28 of the valve. A washer 3| is interposed between the end of the wrench head 28 and the end wall of the squared socket. as best shown in Figure 2.

The nib 2s is provided with a guide pin 32 which is engaged in a longitudinal slot 33 formed in the bore of the barrel l0. The pin prevents rotation of the nib and permits application and removal of the nib from the barrel by straight line movement.

A ferrule 34 is threadedly engaged with a reduced neck on the barrel as shown at 35. The ferrule is provided with a shoulder 36 which is adapted to clamp the collar 3T on the nib 29, against the end of the threaded neck of the barrel and hold the nib firmly in position.

By referring to Figures 1 and 9 it will be seen that legends are formed on the barrel to denote On and Off positions of the valve, these legends being provided with suitable indicating arrowheads which coact with a single arrowhead on the cap ll in indicating said positions. To replace an empty ink tube and valve assembly when the tube has been used up, the cap I1 is turned until the indicating arrow thereon arrives at the legend Remove, At such point the pin 20 is in registration with the longitudinal leg 38 of the bayonet slot so that the cap may be removed. Thereupon, the projecting end of the ink tube may be clasped in the lingers and the tube and valve assembly withdrawn endwise from the barrel. The empty ink tube may be discarded and a full ink tube and valve assembly thereupon inserted endwise in the barrel until the wrench head 28 of the valve engages in the squared socket 30 in the nib 29. The cap l1 will now be slipped on to the collar I8 and given a suilicient turn to bring the indicating arrow of the cap at the legend marking Off. VTo permit the ink to escape from the tube to the ink feeder 39 and pen point 40 the cap need only be rotated until the pin arrives at the end of the bayonet slot in which position the arrowhead of the cap will be in registration with the legend On and the valve Will be open.

From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation.

What is claimed is:

l. A fountain pen comprising a barrel, a tube lled with ink removably disposed in the barrel, a valve on one end of the tube, a wrench head on the opposite end of the tube, means connected with the barrel and disposing the valve in a predetermined relationship with respect to the wrench head, and a cap removably and rotatably disposed on the barrel and having a socket receiv- Y ing said wrench head for rotating the tube with respect to the valve to open and close the valve.

2. A fountain pen comprising a barrel, a tube containing an ink supply removably disposed in the barrel, a valve on one end of the tube, a wrench head on the opposite end of the tube, a wrench head on said valve, means connected to the barrel and engaging the valve wrench head for holding the valve stationary, and a cap removably and rotatably disposed on the barrel and having a socket receiving the wrench head of the tube for rotating the tube axially with respect to the valve to open and close the valve.

3. A fountain pen comprising a barrel, a cap on one end of the barrel, a bayonet joint connection between the cap and the barrel whereby the cap may be rotated on the barrel, a tube containing a supply of ink housed in the barrel, a wrench head on the tube detachably engaged with said cap whereby turning of the cap turns the tube axially, a nib on the other end of the tube, a pin and slot connection between the nib and barrel permitting of the nib being assembled by endwise movement with the barrel, a valve carried as an integral assembly with the tube, a wrench head on the barrel, and a socket on the nib removably engaging the valve wrench head for holding the valve stationary to permit control of the valve by rotation axially of the ink tube.

BEAUFORD HAROLD DICKS.

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