US2518932A

US2518932A - Magazine pencil with selectively usable leads

Info

Publication number: US2518932A
Application number: US709138A
Authority: US
Inventors: Ralmondi Rinaldo
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-10-01
Filing date: 1946-11-12
Publication date: 1950-08-15
Anticipated expiration: 1967-08-15

Description

R. RAlMoNDl Aug. 15, 1950 MAGAZINE PENCIL WITH SELECHVELY USABLE Filed Nov. 12, 194e Patented Aug. 15, 1950 MAGAZINEPENGIL WITH sELEcrrlvELY v USABLE LEADS Rinaldo Raimondi, zurich, switzerland Appleman Novemberiz, 194s, semina. 709,138

v In Switzerland October 1, 1945 section. 1, Public Lawton, August 8,1946 Patent October 1, 11935v El' 'The 4present ,invention relates to magazine.- penil withselectively usable leads. Pencils of said tape are. known, ,comprisinga shaft with .a plurality nl chambers, each foi-.storing one of the, ,leadsand each open towards afbarifely having aslot through which a lead maypass from one of said,r chambers to thepincerffor Athe lead. Bhe Dinner may be vaxially displaced toy -I'lx -a 'lead' 1in its;` workin-g position vvand to free it to be` .returned to one .oisaid chambers.

The: main object. of the `il'lvention vconsistsfin the lprovision .of a .channel arranged .between the chambers fcristoring each. alead andthe pincer to hold the .lead while .beingin, its position for writing..

Axfiirther object of the invention providing simple and effective meansl to l pass the leads from` its storing `chamber tothe pincer Iby only axially displacing same.

lIntlfle accompanying 4drawing `a preferred emV Y detail of the pencil.

consists. in t 'mounted The disc ifI isprovided at its face with. teeth andispressed en to a toothed face of a disc. III by a coiled spring 12. Thedisc II) is :axially dispiaceable within the casing f5.. The discs I0.; Il have thev same .number of teeth as the I alias chambers I1., that is six. The position-o1 the teeth yissuch .that the. face of a chamber .ITI I is anima lol. 12o-1143)- coincides with anopening I6 leading to the gagement sor that a lead Smaypass troni a cham- "ber I1 throng-h the opening .I5 into the tube .6.

.In .a tubular casing 5;, which. is, polygcnalfln transverse contour, a tubular guide 6-for 'leading a lead 9 from lits storing chamber to its operative position is` arranged.- The, tubular guide 6 carries at its lower end a clamp 2 for a lead having sprinev prongs, lcri-operating with ai conical bore of the tip of the pencil. To the tubular guide 6a disci is fastened, which serves as an abutment for a coiled spring- 3 supporting the guide 6 and' tending to close theclamp '2. To `the upper end of the tubular guide B a member 22 is fastened acting asaguide while-the tubular guide ,6 isdisplaced in axial direction within the casing 5 preventing the rotation of the guide 6. To the latter a rod, 2l is xed to the. upper end of whicha knob, I3. projecting well over theeasing 5 .israeten'ed. Thelow'er end` I5 of rod 2| is bevelled to guide the lead 9 when the same is brought back from its working position into one of six lead chambers I1 in a magazine barrel I8 rotatably mounted on the rod 2i. The chambers I1 are open at their ends, they run in axial direction and receive each but one lead. On the rod 2l a disc il is axially displaceablc but not .rotatably On thel barrel I8 ,a tube 20 is .arranged taking part en Ythe rotation ofv the barrel I8. The tube 20 rests` on .a small tubular cup vil, the latter being rotatably mounted .on the bearingmember 22 "wi-thin the casing y5. Thesleeve .8 lhas a :lat ,bot-

tom and. in said bottom VtheY above mentioned opening t6 is arranged which corresponds in shape and in .size 'with the opening; of the tube 6' at lits upper end.V In the .casing .5 (Fig. 2) near its :upper end, a window opening I9 isarranged, which `allows the reading of marks on the knob I3, the marks denoting, Vfor instance the kind` of.

lead which is within the chamber ready to be is.-

sued and to be; brought 'into its writing position..

The `cri-p .Sisl provided with a slantingaslot 8a into which projects a stud VI'isecured to the casing 1'5'.

ing-ly shaped upper end of the casing 5, but is provided with a cylindrical lower portion 23 which 4is `the only part ofthe knob I3- projecting into the casing 5 and 4permitting a rotation of the knob I 3 within thel easing 5 when there is no lead inthe clamp '2. In such a case the upper polygcna-l portion of the kob I3' projects above the* v casingv 5 andi-therefore theknob I3 and therewith the rod 2-I and cup 8 maybe turned to bring a lead- 9- from a chamberV I1 into the clamp 2 the pencil being now held by the hand with the tip l.pointing downwardly. If the knob` I'3 is now pressed 'the l'rod 2I and therewith theguid'ei and the. jjaws of the clamp Zaremoved downwardly in the'casing 5. Moreover the discs I0', I`I are free to allow the passing oi n, lead 9, by its @we The pin 1, which engages the Y weight. The lead 9 is led by the slantin-g wall I4 into the clamp 2.

To release the lead 9 from the clamp and to bring it back into the chamber I'I, the pencil is turned upside down. The tip .of. the. pencil is uppermost. By pr'ess'ingthe knob I3 the jawsof the clamp give the lead `9 freedom. The released lead falls by its own weight through the tube 6 downwardly on to the slantingface I and enters l a chamber I'I. By pressing onthe knob I3 the cup 8 had been turned in advance by the stud 'I in such a manner that the opening I6 coincides with thev opening at the upper open end of tube.

6. The lead 9 may pass into 'the chamber I l. vvvIf the pressure on the knob I3 ceases theV knob I3 is returned to its initial position by .the spring I2 closing said lead chambers, but having an aperture adapted to bring any selected lead chamber in said barrel in communication with said tubular guide, manually operable means for rotatably adjusting said barrel to bring the selected lead chamber in'valinement with said, tubular guide and for axially moving said barrel, and an operattive` connection between said casing and said cup including a pin extending inwardly from the Wall of said casing and into a slanting slot provided in said cup, whereby upon axial movement of said barrel said cup is rotated to move the aperand the cup 8 resumes its position shown inFig.

8 closing the exit of the guide 6.

freely in the casing 5 as'only the cylindrical part 23 oftheknob I3-projects into the casingl 5. The'- k'n'ob I3 mayr now be turnedr until another lead arrives in a position to be passed from the chamber I1 to be emptied vand may be viewed throughf theY window I9.- The positioning of the chambers; Il is' effected by turning the knob I3 in combina` tion with the discsV IB, II by means of which the chambers Il are brought in true alignment with the tube E. 1

What I wish to secure by Letters Patenty is :y K i 1. In a magazine pencil with selectively usable leads', a tubular casing providedat oneend with a rotatable and axially movable clamping member for'a lead, a rotatable and axially movable If there is no. lead 9 in the clamp the knob I3 may be turned` guide, manually operable means for rotatably a'djustingvsaid barrel to bring the selected lead chamber in alinement with said tubular guide and for axially moving said barrel, and an operative connection between Said casing and said cup whereby upon axial movement of said barrel said Y cup is rotated to move the aperture in its bottom intov alinement with the lead chamber which has been moved in alinement with said tubular guide` tolpermit a discharge of the lead from said lead chamberinto said tubular guide and vice versa.

,2. In a magazinepencil with selectively usable leads, a tubular casing provided at one end With a rotatable and axially movable clamping member for a lead, a rotatable and axially movable magazine barrel in said casing and provided with a circular row of axially extending lead chambers,

one for each lead, a tubular guide non-rotatably mounted in'said casing for guiding leads from any one of said chambers to said clampingmem- '65 ber, a' cup rotatablymounted at the end oisaid barrel which'discharges the leads intosaid tubu' lar'jguide, 'said'cup'having a bottom normallyl turein its bottom into alinement with the lead chamber which has been moved in alinement with "said tubular guide to permit a, discharge of the lead `from said lead chamber into said tubular .guide and vice versa.

3. Ina magazine pencil with selectively usable leads, a tubular casing of polygonal cross-section provided at one end with a rotatable and axially movable clamping member for a lead, a rotatable andaxially movable magazine barrel in said cas- "y ing and provided with a vcircular row of axially extending lead chambers, one for each lead, a tubular guide non-rotatably mounted in said casing `for guiding leads from any one of said chambersto said clamping member, a cup rotatably mounted at the end-of said barrel which discharges the leads into said tubular guide, said- 'cup having a bottom normally closing said lead chambers, but having an aperture adapted toA bring any'selected lead chamber in said barrel in communication with said tubular guide, a manually'operable knob of polygonal cross-section at" the other end of vsaid casing for rotatably adjusting said barrel to bring the selected lead chamber in alinement Vwith said tubular guide and for axiallyv moving said barrel, and an operative connection between said casing and said cup whereby upon axial movement of said barrel said cup is rotated to move the aperture in its bottom into alinement with the lead chamber which has been moved in alinement with said tubular guide to permit a discharge of the lead from said lead chamber into said tubular guide and vice versa,

said knob having a cylindrical guide portion normally extending into said other end of said polygonal casing and permitting entrance of the polygonal portion of the knob into the casing when a lead is discharged from one of said lead chamlbers,.`and means for retaining said polygonal portion of the knob in engagement with said casing forpreventing rotation "of said knob as long as a lead is held by said clamping member.

' RINALDO RAIMONDI.

REFERENCES CITED The l,following references are of record in the ile' of this patent:

UNITED sTATEs PATENTS Number Name `Date 'l 2,219,769 Dorfmanv Oct. 29, 1940l FOREIGN PATENTS Number Country Date '2 yswitzernmd Dec. 16, 1947