US1885862A - Feed bar and pen point - Google Patents

Description

1932- s. M. sAGER 1,885,862

FEED BAR AND PE'N POINT Filed June 29, 1931 Patented Nov. 1, 1932 SOLOMON M. SAGER, F GLENCOE, ILLINOIS rnnnran AND Pun rornrr Application filed June 29,

In the construction of various makes of fountain pens it has heretofore been the prac tice of providing feeders or feed bars having ink 'feed passages or grooves extending longitudinally' in the top surface thereof. In the majority of the earlier types of fountain pens the feed bars are mounte'd in the sections with pen points, the shanks of which are engaged over or seated upon the longitudinally grooved upper portions of the feed bars and are inserted into the ends of the fountain pen sections to be held in position by friction. It has been found in the early types of fountain pens that by merely seats ing the pen point upon a section that the pen point'must be engaged in position by an expert and after being mounted very often is moved with respect to the feed bar so that the pen point willnot write properly. In the earlier types of fountain pens the pen point and feed bar are entirely separate pieces so that when the same are removed from the fountain pen section the pen point no'lon er remains associated with the feed bar. fn order that the early types of pen points may have the shank portions thereof engaged over the feed bars it has been necessary to provide enlarged pen point shanks thereby making it necessary to use considerable amount of gold in the construction of pen points. I The present inventionrelates to an im-' proved fountain penfeedbar and pen point position within a fountain pen section with said feed bar being provided with a grooved recess for the definite reception of the 'reduced shank end of a pen point to positively hold the pen point in a predetermined position with respect to the feed bar and in interfitting relation thereto to hold the feed bar and pen point interiitting one another and adapted to remain associated with one 5 another as a unit when removed from the fountain pen section.

It is an object of this invention to provide a cdmbination feed bar and pen point unit wherein the feed bar is recessed and grooved to removably receive a pen point, the shank portion of which is reduced in size to prounit adapted to be removably threaded into 1931. Serial No. 547,549.

vide a pen point of reducedweight and requiring less material affording a considerable saving in the amount of 'gold required without impairing the quality or serviceability of the penpoint.

It is also an object of this invention to provide an improved fountain pen feed bar with a grooved recess shapedcomplementally to the shape of a fountain pen point shank to receive the pen point shank .in a predetermined seated position engaged in the grooves of the'recess'to hold the feed bar and pen point associated with one another as a unit even whensaid parts are removed from the fountain pen section.

A further object of the invention is to provide a. fountain pen feed bar with a grooved recess shaped to receive a pen point shaped to afford a considerable saving in the amount of gold required without interfering with the tip end of the pen point. v I

It is furthermorean object of this .invention to provide a fountain pen having the feed bar so constructed that the shank end of the pen point may be of substantially minimum. size to reduce the amount of gold or precious metal used in the construction of the pen point, making it possible to produce fountains pens at a considerable saving in costand a positive association of the pen point with the feed bar to holdfthe pen point and feed bar definitelypositioned with respect to one another. 7

. Another objectof the invention is to p'rovide a fountain pen feed bar provided with 85 a grooved recess to removably receive the reduced shank end ofa pen point ininterfitting engagement therewith permitting the shank and pen point to be mounted as a unit by threading the exteriorly threaded shank end of the feed bar into an internally thread: ed recess provided in the fountain pen sec-r tion. a

It is an important object of this invention to provide an eXteriorly threaded fountain pen feed bar having a grooved recess provided therein which is so shaped that the pen point may be so shaped that a considerable saving in the amount of gold or precious 100 metal required for the penpoint is materially reduced, permitting fountain pens to be manufactured at a considerable saving in cost and with increased advantages in the positive assemblage of the pen point with respect to the feed bar positively holding the tip of the pen point properly aligned with the ink feed grooves of the feed bar.

Other and further important objects of this invention will be apparent from the disclosures in the specification and the accompanying drawing.

The invention (in a preferred form) is illustrated in the drawing and hereinafter more fully described.

On the drawing:

Figure 1 is an enlarged longitudinal section of the writing end of a fountain pen having an improved feed bar and pen point embodying. the principles of this invention engaged in the section end of the fountain pen barrel.

Figure 2 is a top plan view of the feed bar removed from the fountain pen.

Figure 3 is a longitudinal section of the feed bar taken on line IIIIII of Figure, 2.

Figure 4 is an. enlarged transverse detail section of the feed bar and pen point. taken on line IVIV of Figure 1 with the cap omitted. V

Figure 5 is. a planview of the improved pen point removed from the feed bar.

As shown on the drawing;

The reference numeral 1 indicates a'fountain pen barrel, one end of which is tapered to form an integral section2. The barrel 1 is provided with an ink chamber 3 which communicates with anaxial passage 4 pro- Vided in the Section end 2 of the barrel. In the present showing of the fountain pen, the same is provided with a plunger filling mechanism designated as a whole by the reference numeral 5 The outer end of the section 2 is provided with an eX ension sleeve or collar 6 which serves as an ink guard member and is integrally formed on the outer end of the body sectionto the outside of a bead or flange 7. The head or flange 7 is integrally formed externally on the outer end portion of the section-2 and serves to separate the section and the ink guard 6. The ink guard sleeve or collar 6 has the end thereof shaped or formed to provide an innerbeveled end surface 8, the inner end of which terminates at the outer end of an internally threaded portion 9 provided in the ink guard. For enclosing the writing end of the fountain pen a oneipiece or unitary cap '10 is provided.

The cap 10 has an inner chamber 11 for re ceiving the outer end of the fountain pen feed bar and pen point. The outer end of the cap 10 is closed while the opposite or inner end is provided with an exterior tapered or beveled surface 12, the outer end of .which terminates at the inner end of a reduced externallythreaded shank portion or collar 13.

the cap having threaded engagement With the interiorly threaded portion 9 of the ink guard. The cap is threaded into the ink guard until the beveled surface 8 of the ink guard is contacted by the beveled surface 12 of the cap to provide a non-leakable joint s between the ink guard and the cap.

The present invention relates more particularly to an improved feed barand pen point unit which is adapted to be removably engaged in an internally threaded portion 14 provided within the fountain pen section 2 as clearly illustrated in Figure 1. p The writ ing unit comprises a feed bar 15having an integral shank 16 the end portion of which is externally threaded at 17 to permit the feed bar when projected through the ink guard 6 and into the section 2 to be removably engaged by threading the portion 17 into the threaded portion 14 of the section. The feed baris provided with an ink intake and dis charge passage 18 which extends longitudi nally through the feed bar from the outer end to the inner end where the passage flares out to provide a conical recess 19. The feed bar is provided in the 'top surface thereof with a longitudinally directed ink feed or supply passage or grooves 20 which extend from the tip of the feed bar tothe end of the threaded shank section 17.. The feed passage 20.may be of the customary compound groove type formed by one or more longitudinally disposed ribs or ridges to afford an arrangement whereby the supply of ink may be smoothly and evenly fed to the outer end of the feed bar and to the fountain pen point. l

As clearly illustrated in Figure 2, the improved feed bar has the top surface' thereof provided with a pen point receiving recess, socket or pocket comprising an outer enlarged tip recess 21 and a shank recess 22 which extends from the recess 21 along the top of the feed bar up tothe threaded portion 17 of the feed bar. The edges 23 and 24 are undercut to providereceiving grooves 25 and 26 for receiving the .edges of a pen point shank as hereinafter more fully described.

' The feed bar is provided with the pen point receiving recess or socket and has the edges forming said recess or pocket grooved or undercut'to provide suitable guide grooves for receiving edges of the body and shank por-,

tions of an improved type ofpen point seated therein for the purpose of holding the pen point removably seated or locked in engagement with the feed'bar so that the two mem bers are adapted to be maintained in associated relation to form a unit which when pen point adapted to be constructed of gold or other precious metal which will withstand the action of writing ink. With the improved feed bar provided with the pen point receiving recess or pocket it is possible to provide a pen point which will require materially less gold or metal, thereby providing a pen point of lighter weight and less expense due to the saving in the amount of gold required in the construction of the shank portion of the improved pen point; As clearly illustrated in Figure 5, the pen point comprises a head or body portion 27, the front end of which is tapered and longitudinally split to provide the customary writing tip or nib 28. The rear portion of the body or head 27 of the pen point is:

tapered or reduced in size to provide shoulders or edges 29 which are shaped complementally to the shape of the feed bar end recesses or grooves 25 to permit the shoulders of thehead portion of the pen point to seat in the grooves 25 when the pen point is in po sition. Integrally formed on the rear end of the pen point head 27 is a stem or shank 30 which is narrow or of reduced width to fit in the shank recess 22 of the feed bar with the longitudinal or side edges of the'pen point shank 30 slidably engaged in the side grooves 26 forming part of the pen point receiving recess of the feed bar. I

By providing the feed bar with the grooved pen point receiving recess 21'-22 a pen point may be provided having a shank or stem which is of small size, thereby greatly reducing the amount of gold or precious metal required in the construction of the pen point. This novel arrangement permits gold .pen points to be provided at a considerable saving in cost without interfering with the writing qualities of the tip or nib 28 of the pen point.

The pen point receiving recess provided in the top surface of the feed bar is shaped complementally to the shape of the shank and rear portion of the head of the pen point so that'the pen point may be removably engaged in the feed bar recess or pocket 2122 with the longitudinal edges of the shank portion 30 of the pen point and the rear edges or shoulders 29 of the pen point head 27 seated in the grooves 26 and 25 respectively provided in the feed bar. This arrangement of the interiitting relationship between the feed bar and the pen point permits the pen point to be positively positioned in a predetermined set position of adjustment with respect to the feed bar to insure perfect writing with the tip or nib 28 of the pen point.

he interfitting or interlocking engagement between the feed bar and the pen point furthermore affords an arrangement whereby a pen point may be correctly mounted in position by any inexperienced person without requiring the services of an expert. The

grooved'recess provided in the feed bar furthermore holds the penpoint when in position vfrom sliding or moving peripherally around the feed bar to. misplace the nib or tip of the pen point with respect to the ink feed teriorly threadedshank 17 of the feed bar permits the'feedbar unit including the feed bar and'the pen point .to be removably en: gaged in the interiorly threaded section 2 of the fountain pen barrel. With the pen point seated in interfitting engagement with 5 the recessed feed bar the shank end of thefeed bar is projected through the ink guard 6 and into the section passage & after which the feed bar is rotated to cause the threaded shank 17 to thread into the interiorly threaded portion 14: of the section 2 to hold the feed bar and the penpoint properly positioned with the pen point locked in place against accidental misplacement or shifting with respect'to the feed bar.

It will of course be understood that various details of construction may be varied through a wide range without departing from the principles of this invention, and it is therefore not the purpose to limit the patent granted hereon otherwise than necessitated by the scope of the appended claims.

I claim as my invention:

1. A fountain pen feed unit comprising a feed bar having an externally threaded shank integrally formed on one end thereof, said feed bar having a pen point receiving recess formed therein with the margins bounding the recess grooved to provide overhanging flanges, and a pen point slidably engaged in the feed bar recess with the body portion of the pen point shaped complementally to the shape of the feed bar recess with margins of the pen point engaged beneath the flanges to hold the pen point frictionally interfitting the feed bar.

2. A fountain pen feed unit comprising a.

feed bar having a passage and ink feed grooves therein, said feed'bar also having a pen point receiving recess therein and a plurality of guide grooves forming flanges overhanging said recess, and a pen point having the shank portion thereof shaped complementally to the shape of a portion of said recess to permit the shank portion of the fountain pen to seat in said recess and project into said grooves beneath the flanges to hold the pen point in interfitting engagement with the feed bar. 7 v

3. The combination with a pen feed bar having a pen receiving recess formed therein with said recess provided with a grooved narrow extension, of a pen point comprising a body portion, a nib integrally formed on one'end thereof and a narrow shankintegrally formed on the opposite end thereof, said pen point seated in said recess with the narrow shank of the pen point projecting into the grooved extension of the recess.

4. The combination with an ,exteriorly threaded pen fee-d bar having passages and grooves therein, said feed bar also having a grooved recess therein a'portion-of Which is restricted in Width, and a pen point seated in the feed bar recess, said pen point having an elongated narrow shank adapted to project into the restricted portion of the feed bar recess to hold the pen point secured in interfitting engagement with the feed bar.

In testimony whereof I have hereunto suh scribed my name at Chicago, Cook County, T

Illinois.

SOLOMON M. SAGER.

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