US2367471A - Ruling pen - Google Patents

Description

Jan. 16, 1945. R. A. OLIVERA 'RULING PEN Fi'led Aug. 5, 1943 2 Sheets-Sheet l I m/entor EQmQ w 24. OZz'verQ/ Jan. 7

Filed Aug 1945 2 Sheets-Sheet 2 I v 4.. {d

i I 4% J \J W I l r i /4' l 6 9 l4 rs 4 V L9 7 Inventor 4'. 794/7700 A ahverw Patented Jan. 16, 1945 UNHTED STATES PATENT OFFICE RULING PEN Ramon A. Olivera, San Juan, P. R.

Application August 5, 1943, Serial No. 497,489

1 Claim.

The present invention relates to new and useful improvements in ruling pens and has for its primary object to provide, in a manner as -hereinafter set forth, an instrument of this character comprising novel means operable by the user, for supplying ink as it is needed to the nibs.

Other objects of the invention are to provide a ruling pen of the character described which will be comparatively simple in construction, strong, durable, highly eflicient and reliable in use, compact, light in weight, and which may be manufactured at low cost.

All of the foregoing and still further objects and. advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein- Figure 1 is an elevational view of a ruling pen constructed in accordance with the present invention.

Figure 2 is a view in side elevation of the instrument with the nib protecting cap removed.

Figure 3 is a view principally in vertical section through the instrument.

Figure 4 is an elevational view, taken at right angles to Figure 2.

Figure 5 is a View in horizontal section, taken substantially on the line 5--5 of Figure 4.

Figure 6 is a detail view in vertical section through the ink discharge tube.

Figure 7 is a detail view in perspective of the nib protecting cap.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a barrel 1 of suitable material, said barrel having threaded thereon a removable cap 2. The other end portion of the barrel 8 is internally threaded to accommodate a removable shank 3 having companion nibs 4 and 5 formed integrall therewith.

As illustrated to advantage in Figures 3 and 5 of the drawings, a block 5 is mounted between the ribs 4 and 5 at an intermediate point. The block 5 is mounted on a screw 7, one end portion of which threaded through the nib 4 and flattened, as at 5. The nib 5 is slidable on the other end portion of the screw 7. An adjusting nut .13 is threaded on the end portion of the screw 1 and engaged with the nib 5. The nut 9 is scaled or numbered (see Figure 1) to facilitate adjustment of the instrument as desired by the draftsman.

Mounted in the barrel I is a container ll] of suitable material for the reception of a supply of 55 ink. The container 10 comprises, on one end, a reduced neck ll havin mounted thereon an elongated collapsible bulb it which the removable cap 2 encloses. Projecting from the other endoi the container II] is a tube l3 which extends longitudinally through the shank 3 and between the nibs 4 and 5 to a point adjacent the points thereof, said tube passing through an opening which provided therefor in the block 6. Mounted in the outlet end of the tube I3 is a small nozzle I i.

It is thought that the manner of using the pen will be readily apparent from a consideration of th foregoing. Briefly, to deposit ink from the container Ill between the point portions of the nibs 4 and 5, the cap 2 is removed from the barrel .l for exposing the collapsible bulb l2. This bulb is then squeezed for ejecting the desired quantity of ink from the container l0 and the cap 2 is re- I placed. To fill the instrument, the shank 3 with the nibs 4 and 5 thereon is unscrewed from the barrel I and slipped off the tube 13 for permitting immersing of the free end of said tube in a supply of ink. The cap 2 is again removed for permitting operation of the collapsible bulb I2. As hereinbefore stated, adjustment of the nibs 4 and 5 is had through the medium of the nut 9. A removable protective cap [5 is provided for the nibs 4 and 5 when the instrument is not in use.

It is believed that the many advantages of a ruling pen constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the instrument is as illustrated and described, it is to be understood that changes in the details of construction may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

In a ruling pen, in combination, a barrel, a rigid ink container fitted and secured in the barrel and having a central discharge tube projecting from its lower end, a point member including a shank removably threaded in the lower end of the barrel and slidably fitted on the discharge tube, said point member further including companion nibs depending from the shank at opposite sides of said discharge tube and means to adjust the nibs toward or away from each other including a member slidable on the discharge tube to permit removal of the point member from the barrel and the discharge tube so that the rigid ink container may be filled by drawing ink up into the same through said discharge tube, and inean to draw the ink upwardly into said conainer.

RAMN A. OLIVERA.

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