US448839A

US448839A - sabel

Info

Publication number: US448839A
Authority: US
Publication date: 1891-03-24
Anticipated expiration: 1908-03-24

Description

(No Model.) Y

F. W. SABEL.

PENCIL SHARPENBR.

No. 448,889. Patented Mar. 24, 1891.

UNrrsEn Strains PATENT Querce.

FRIEDRICH IVILHELM SABEL, OF COBLENTZ, GERMANY.

PENCIL-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 448,839, dated March 24, 1891.

Application filed October 28,1890- Serial No. 369.558. (No model.) Patented in Germany May 26, 1889, No. 50,694, and in France September 23, 1889, No. 200,911.

To @ZZ whom t may concern:

Be it known that I, FREIDRIOH WILHELM SABEL, a subject of the Emperor of Germany, and a resident of the city of Coblentz, Irussia, Germany, have invented an Improvement in Pencil-Sharpeners, (for which I have obtained Letters Patent in Germany, No. 50,694, dated May 2G, 1889, and in France, No. 200,911, dated September 23, 1889,) of which the following is a specification.

The object of the present invention is a pencil-pointer by means of which the point of lead-pencil cores for pantographs can be shaped centrally true; but the apparatus is also appropriate to sharpen engraving-needles for lithographers and chalcographers, as well as to point lead-pencils covered with wood, and also slate-pencils.

Figure 1 shows the apparatus in longitudinal section;- Fig. 2, in cross-section; Fig. 3, in a view from above, and Fig. 4 in a View from below. Figs. 5 to 9 are details.

Under the plate d of a little four-wheeled carriage is lodged a small tube Z), Fig. 9, in a slanting position and able to revolve. This tube is adapted to receive the needle or pencil to be sharpened. One end of it is lodged in a lateral cheek Z in such a way that it can be vertically moved up and down in the guide Z Fig. 2. A rotary motion is imparted to the tube b by means of a crossed belt or cord o, running over the pulley cZ from one of the wagon -wheels, or by means of cog wheels when the carriage is moved upon a surface.

The needle or pencil to be pointed passes loosely through the inner space c of the tube and is held tight at the lower end in the slit and clamping sleeve end c. The end of the pencil passing beyond c must be drawn out far enough so as to touch the surface upon which the carriage rolls, and against which it is slightly pressed by a spring e, the sleeve e being arranged to go up and down in a guide Z. By pushing theppencil to be pointed more or less out the shaping-angle can be regulated within the desired limits. If the surfaces upon which Athe carriage is rolled are made of emery, sand-paper, stone, file-cut, or other surface appropriate for grinding, the

tube b, can strike the fixed arm or linger Zo, l

Fig. 5, the tube ZJ will be pressed upward in its revolution, Fig. 6. This will be done twice perevery revolution from a distance 0o to a greater distance x from the surface y; but as b has its fulcrum in Z, Fig. 2, b will be led from posit-ion Fig. 8 into position Fig. 7, while the distance zo? remains the same in both cases. Thus the pencil-point is lifted od the grinding-surface y, and as it is done twice per revolution the result will be a flat point. The finger 7c rests upon a dat spring k2, and by turning the screw Zo the height of 7o may be regulated, whereby the form of the iiat pencilpoint may still be varied.

The piece f, carrying the guide-cheeks for pipe b, can be displaced on the carriage longitudinally, in order to regulate the tension of the driving-cord. The piece f is secured in its correct position by two screws f', Fig. 3, passing through longitudinal slots in the plate a. A knob gupon the carriage is usedl as a handle to move the carriage.

l. In a pencil-Sharpener, the combination of a carriage mounted on wheels with a pencil-holding tube journaled under said carriage at right angles to its motion and in such a manner as to drop one end to the level of the surface upon which said wheels are running, a spring to keep said holder down on said surface, a connection between said holder and one of said carriage-wheels,where by said holder is rotated, and a roughened surface upon which said carriage moves, all substantially as set forth.

2. In a pencil-Sharpener, 4the combination of a carriage mounted on wheels with a pencil-holder journaled thereto in a slanting position and in such a manner as to allow its angle of' inclination to be altered, a connection between said holder and one of said ezut signed my nmne in the presence of two suhro ringe-Wheels, whereby said holder is rotated, seribing Witnesses. an eccentric collar mounted on said holder, :L 1

173D I f[ILq1-E. nnger plvoted so as to engage Wlth sold e01- I RIP RI( I I n V A L 5 1m* and mise said holder twice during every Utuossesz revolution, and a roughened surface upon J. C. SOMES, which said carriage moves, all substantially Ifm'. u. Steaua-@rorc1/nele, as set forth. WILH. HEIN. HARTMANN,

In testimony whereof I have hereunto ,Kfz/r.