US1362012A - Drill-holder - Google Patents

Description

J. KORANEK.

' DRILL HOLDER. APPLICATION FILED MAY 5, I9I9Z 1,362,012, Patented Dec. 14, 1920.

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1N1 sse UNITED STATES PATENT OFFICE.

JOHN KORANEK, OF CHICAGO, ILLINOIS, ASSIGNOR TO E. TOMAN AND CO CHICAGO, ILLINOIS.

MPANY, OF

DRILL-HOLDER.

Application filed May 5, 1919. Serial No. 294,829.

To all whom it may concern:

Be it known that I, JOHN KORANEK, a

citizen of the United States, and a resident.

ence being had to the accompanyin draw-,

in which forms a part of my speci cation.

My invention relates to a device for holding drill-bits in such manner that the desired bit or drillmay be easily and quickly selected by the operator from the holder; the holder being adapted to hold bits of different sizes in spaced relation and with the drills preferably arranged according to a well known or accepted gage.

The object of my invention is to provide a holder adapted to receive the pointed or cutting ends of the bits; the receiving apertures or sockets being preferably arranged in predetermined series and rows, so that the location of the drill or bit may be quickly ascertained and selection made; while at the same time the drills or bits will be held in such relation to one another and to the holder or block as to enable the holder, with the inserted drills or bits, to be easily placed in a usually comparative shallow drill-holding drawer and permit the latter to be closed. My improved holder is so constructed, that when placed on the operating bench or table it will maintain the free or projecting ends of the drills 0 bits in a series of parallel lines or rows with suificient intervening space between the rows as well as the drills .in the same row, as to enable a quick selection of the desired drill or bit to be made, as will be readily comprehended from the following detailed description of the accompanying drawing, wherein Figure 1 is a front perspective view of my improved holder looking at one end thereof.

Fig. 2 is a rear elevation of my improved holder with a portion shown in section.

Fig. 3 is a vertical cross-sectional view of my improved holder taken through any series of the drill receiving sockets or apertures.

. Thdliolder in its preferred form is made of metal and in the particular exemplification is shown of somewhat sector shape of any predetermined length and width, in

cross-section, that is to say, the main portion of the holder is convexo-concave, so as to provlde the arcuate surface 10 having suitable ends 11. The ends are preferably of skeleton form as shown, for the sake of hghtness and cheapness in manufacture. The two webs which form the ends may be of equal length so as to maintain the arouate, forward face 10thereof in proper position and at the desired inclination, as more clearly shown 1n Fig. 3;that is to say, the web portions which constitute the ends of the holder, together with the varying thickness of the forward face, constitute substant1ally equal radii for the segment of a circle described by the forward face 10. Of course, these dimensions may be altered when desired, and particularly if the forward or front face 10 is to be provided with an additional series or number of drill-rece1v1ng sockets or openings adjacent the lower front face. I prefer the construction shown in the drawings because it enables the holder with the drills inserted therein to be easily placed in a comparatively shal low drawer, by positioning the holder so that it is madeto rest on the upper rear edge and back portion of the webs; namely by swinging or turning the holder upward approximately degrees from the position shown in Fig. 3, thereby causing the drills to extend in a direction approximating the length of the drawer, so that none of the drills will be disposed in a substantially vertical plane as is the case when the holder is in the set-up position shown in Fig. 3.

In the construction shown, the holder at what may be termed the upper side thereof when in proper set up position is provided with a series of large sockets or apertures, as shown at 12, to receive the larger or coarser bits or drills; while the front face 10 at an intermediate point, preferably removed from the lower or bottom side thereof, is provided with a series of smaller sockets or apertures 13 to receive the smaller or finer drills or. bits. Because of this arrangement, the arcuate wall orface 10 is thickness of metal merely at points coincident with the sockets or apertures as shown at ll in the rear view Fig. 2; thereby leaving intermediate grooves or channels as shown at 15; the enlarged or aperture-receiving portions of the holder for lightness and cheapness in manufacture being made tapering from top to bottom, as more clearly shown in Fig. 3.

The sockets or apertures of each horizontal row are of gradually decreasing size from left to right; with the largest apertures arranged at the top or upper side of the device, while the smallest are shown in the lower horizontal row. In the particular illustration, each horizontal row comprises ten sockets or apertures; with the largest aperture of each horizontal row disposed at the left hand end of the device; and the first aperture at the left of any selected row, being of slightly smaller gage or size than the last aperture at the right hand end of the preceding horizontal row.

\Vith this arrangement, the upper horizontal row is designated by suitable indicia, as for example numbers beginning with the numeral 1 and ending with 10 at the right hand end; the second horizontal row beginning at the left with the number 11 and ending with the number 20; each succeeding horizontal row being indicated in a similar manner and successively numbered.

The construction shown and described I believe to be the best embodiment of the invention, but it may be expressed in somewhat different mechanical form without departing from the spirit of the invention.

\Vhat I claim is:-

1. A holder of the character described,

comprising a metallic member formed with an arcuate front wall and radially disposed ends, the front wall being provided with a series of graduated sockets arranged in horizontal rows extending lengthwise of said wall, the wall at points coincident with the JOHN KORANEK.

Witnesses:

CYREL R. JANDUS, EDWARD LoMAN.

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