US2153032A - Writing device - Google Patents

Description

J. W. ALBlN WRITING DEVICE April 4, 1939.

Filed May 19, 1938 ATTORNEYS Patented Apr. 4, 1939 UNITED STATES PATENT OFFICE 15 Claims.

The present invention relates to a writing device and particularly relates to a pen device which may be utilized various types of recording gauges.

In automatic recording gauges, it is necessary to utilize a relatively expensive pen device, which nevertheless, tends to clog readily with many types of inks and requires frequent cleaning, replacement, repair and adjustment.

Because of these difiiculties, it is necessary either to inspect the device at relatively short intervals or there is a risk that the record will be lost because of the clogging of the pen device and the failure thereof to register.

These difficulties arise particularly in connection with remote control stations providing automatic recording gauges for recording the variations in temperature, atmospheric pressure, flow of electricity and various other factors or conditions which may be continuously varying and of which it is necessary to have an accurate record.

It is among the objects of the present invention to provide a simple, inexpensive writing device of the character above described which may be readily associated with automatic recording devices and which will give assurance of an accurate record for long periods of time without frequent inspection and attention and without the need of frequent replacement.

Another object is to provide an automatic fountain writing device which may be utilized generally for writing purposes or specifically for recording instruments provided with charts or dial 3' recorders and which will be substantially nonclogging over long periods of time even though inks of many different characteristics may be employed.

Another object is to provide a novel fountain pen construction which may be particularly applied either for writing manually or in connection with automatic or recording devices and may be utilized for long periods of time with assurance that there will be no clogging.

Other objects will be obvious or will appear durrig the course of the following specification.

In accomplishing the above objects it has been found most suitable, according to one embodim ment of the'present invention to provide a tank, well, cup or reservoir construction from the side of which there project two closely adjacent nibs having capillary passages therebetween.

These nibs are preferably compressed together by a spring member inside of the well which spring member also serves to hold the nibs in position.

The nibs may consist of a wire clip bent to gether so that the sides thereof will be closely adjacent each other or it may consist of separate wire or bar elements which come to a smooth or rounded point to which the ink will flow and from which the ink will be deposited upon the writing surfaces.

If desired, the reservoir carrying the writing nibs may be carried by a sleeve which in turn is encircled by a mounting sleeve having a resilient connection to the carrier sleeve. This construction enables most ready mounting of the writing devices either upon a manual writing instrument or in connection with an automatic re-- cording gauge for recording any number of varying conditions.

In the drawing which illustrates one of the many possible embodiments according to the preferred invention, but to which the present invention is by no means restricted since many changes and variations may be made all within the scope of the present invention:

Figure 1 is a top view of the writing device with a portion of the reservoir cover broken away more clearly to show the internal construction thereof.

Figure 2 is a transverse section upon the line 22 of Figure 1.

Figure 3 is a separated perspective view upon enlarged scale, as compared to Figure 2, with a part of the wall of the reservoir broken away more clearly to show the interior construction of the reservoir.

Figure 4 is a diagrammatic view illustrating how the device of the present invention may be utilized in an automatic recording gauge.

Figure 5 is a transverse sectional view upon the line 55 of Figure 3 upon enlarged scale showing the nib construction.

Referring to the drawing, the writing device is provided with a supply container or chamber or reservoir A with the nibs or writing point B and with the carrier structure C. 45

lhe well, as shown, consists of a cup-shaped vessel having a cylindrical side wall I0 and a relatively flat base I I and the cover I2.

The cover I2 is provided with a dependent portion l3 which fits inside of the upper periphery Hi of the wall l0 and with the outward flange 15 which fits over the top of the wall Ill.

The cover is also provided with the air hole l6 which maintains atmospheric pressure within the cup A.

The front portion ll of the cup is provided with the spaced openings l8 which are of 8 shape with the 8 upon its side with central projections IS.

The cup is interiorly provided with the spring steel member 20 which may be riveted, spot welded or otherwise connected to the rear wall 2| of the cup A (see Figure 2).

The edges 22 (see Figure 3) of the spring member 2|] are notched, as indicated at 23 to fit in the notches or recesses 24 in the side of the nib members 25.

The element B, as best shown in Figures 3 and 5, is provided with an opening 26 between the nib elements 25. The nib elements come close together, as indicated at 21, at their forward end and have a rounded front point 28 so as to slip or slide readily over a piece of paper or chart to which they may be applied. The rear of the element B is provided with grooves 29 which cooperate with the projections l9 to permit the element B to be inserted into the opening l8. Although the element B is shown as formed of a clip or small wire bent in half, it may be formed, of course, of different constructions and of two separate elements welded together.

From the rear wall 2| of the cup A extends a sleeve 30 which has a pin 3| fitting in a slot 32 of the encircling or telescoping sleeve 33.

A coil spring 34 reacts between the end 35 of the sleeve 33 and the cup A to press the pin 3| against the end 36 of the slot 32.

The sleeve 33 may be mounted in the eye 31 on the holder element 38 (see Figure 4) and fixed in position by the set screw 39. The spring 34 preferably being under slight compression when the point 28 is in contact with the paper 40.

The arm 38 may be connected to a suitable automatically actuated recording member responding to voltage, temperature, pressure or other variations, while the paper 40 is turned or moved by a clock with the result that a line 4| is formed in accordance With the variations and conditions.

The cup A may receive a wide variety of inks and as soon as the cup moves, the capillary action between the nibs assures that the ink will be drawn forward to the point 28 and be deposited from said point upon the recording sheet or chart 40.

At the same time, as soon as the writing device is withdrawn from the sheet 40, the ink will be withdrawn into the cup A. The compressed spring 34 will always maintain a satisfactory coniact between the point 28 and the chart 40.

The device may be readily assembled, as illustrated on Figure 3, by insertion of the element B into the openings l8 until the recesses 23 engage the notches 24 holding the nibs firmly in position.

It is thus apparent the present applicant has clc""sed a simple construction for writing devices which is susceptible for being widely used in manual instruments as well as in automatic recording gauges and which will not clog and will record accurately over long periods of time without frequent inspection.

It is apparent that the specific illustrations shown above have been given by way of illustration and not by way of limitation and that the structures above described are subject to wide variation and modification without departing from the scope or intent of the invention, all of which variations and modifications are to be included within the scope of the present invention.

What is claimed is:

i. A capillary writing device comprising a vertical reservoir, horizontally positioned closely spaced nibs fed from said reservoir, and means to hold said nibs in said reservoir, said nibs consisting of wire elements coming closely together at their outside ends and being slightly separated from each other so as to form a capillary flow passage from said reservoir to said outside ends.

2. A capillary writing device comprising a vertical reservoir, horizontally positioned closely spaced nibs fed from said reservoir, and means to hold said nibs in said reservoir including a eylindrical leaf spring, said nibs consisting of Wire elements coming closely together at their outside ends and being slightly separated from each other so as to form a capillary flow passage from said reservoir to said outside ends.

3. A writing device comprising a cylindrical reservoir, closely spaced nibs fed from said reservoir, and means to hold said nibs in said reservoir including a split cylindrical leaf spring having notched portions and interengaging notched portions on said nibs.

4. A capillary ink writing device for writing on charts of self recording instruments including a cylindrically walled cup, a flat cover therefor with a vent therein, horizontally positioned nibs fed from said reservoir formed of closely spaced wire elements, and means to hold said nibs in said reservoir.

5. An ink Writing device for writing on charts of self recording instruments including a cylindrically walled cup, a flat cover therefor with a vent therein, nibs fed from said reservoir, and means to hold said nibs in said reservoir including a split cylindrical leaf spring having notched portions and interengaging notched portions on said nibs.

6. An ink writing device for writing on charts of self recording instruments including a cylindrically walled cup, a fiat cover therefor with a vent therein, nibs fed from said reservoir, and means to hold said nibs in said reservoir, said cup being provided with an eight shaped opening in its lower side walls, the nibs being inserted into said opening.

7. An ink writing device for writing on charts of self recording instruments including a cylindrically walled cup, a flat cover therefor with a vent therein, nibs fed from said reservoir, and means to hold said nibs in said reservoir, said cup being provided with an eight shaped opening in its lower side walls, the nibs being inserted into said opening and resilient means to hold said nibs in position.

8. An ink writing device for writing on charts of self recording instruments including a cylindrically walled cup, a flat cover therefor with a vent therein, nibs fed from said reservoir, and means to hold said nibs in said reservoir, said cup being provided with an eight shaped opening in its lower side walls, the nibs being inserted into said opening and resilient means to hold said nibs in position including a split cylindrical leaf spring having notched portions and interengaging notched portions on said nibs.

9. An ink writing device for Writing on charts of self recording instruments including a cylindrically walled cup, a flat cover therefor with a vent therein, nibs fed from said reservoir and a double mounting sleeve arrangement for said reservoir including two telescoping sleeve elements and a spring encircling the inner element and biasing the outer element in one direction.

10. An ink writing device for writing on charts of self recording instruments including a cylindrically walled cup, a fiat cover therefor with a vent therein, nibs fed from said reservoir and a double mounting sleeve arrangement for said reservoir, said mounting sleeve being provided with an encircling spring permitting relative movement between the sleeves of said arrangement.

11. A pen construction comprising a vertical cylindrical container and a capillary conductor member extending outwardly from the side thereof, said member consisting of a U-bent wire the legs of which are bent so closely together as to form a capillary passage therebetween.

12. In a recording device, a capillary ink writing instrument comprising a reservoir and a capillary member supplied from said reservoir, said capillary member consisting of two parallel Wires closely spaced so as to form a capillary passage therebetween, said passage being fed from said reservoir.

13. In a recording device, a capillary ink writing instrument comprising a reservoir and a capillary member supplied from said reservoir,

said capillary member consisting of two parallel wires closely spaced so as to form a capillary passage therebetween, said passage being fed from said reservoir, said wires being pointed at one end to contact a chart to be marked and at the other end projecting into said reservoir.

14. In a recording device, a capillary ink writing instrument comprising a reservoir and a capillary member supplied from said reservoir, said capillary member consisting of two parallel wires closely spaced so as to form a capillary passage therebetween, said passage being fed from said reservoir, said wires being pointed at one end to contact a chart to be marked and at the other end projecting into said reservoir, the side of said reservoir having an opening the shape of which conforms closely to the cross sectional shape of the capillary member.

15. In a capillary writing device, a wire bent double on itself to form a capillary channel to 'receive the flow of ink, a reservoir, and means to fasten the bent portion of said wire within said reservoir.

JEREMIAH W. ALBIN.

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