US536596A - Nicolas bosmann - Google Patents

Description

(No Model.)

N. BOSMANN.

BILLI'ARD GUE.

No. 536,596. Patented Apr. 2, 1895.

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' UNITED STATES/iI PATENT OFFICE.

NICOLAS BOSMANN, OF CHICAGO, ILLINOIS, ASSIGNOR TO GEORGE l STERNE, OF SAME PLACE.

BILLIARD-CUE.

SPECIFICATION forming part of Letters Patent No. 536,596, dated April. 2, 1895.

Application filed August 2, 1894.

.T0 @ZZ whom z5 may concern.-

Be it known Ythat I, NICOLAS BosMANN, a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Billiard-Cues, of which the following is hereby declared to be a full,-

clear, and exact description, sufficient toenable others to practice said invention.

The invention designs to furnish a billiard cue with an elasticpoint which consists of a series of perforated raw-hide disks or annuli firmly compacted and united together and mounted about the end dowel of the cue. The raw-hide point is set upon the dowel while it is still wet 'with glue, and adheres thereto not only by reason of the glue but because of `the shrinkage of the point which occurs in drying. The point thus stoutly clasps the cue and is highly effective to prevent the cracks, splintering or battering of the cue-end which otherwise is most apt to ensue. The set disks swell when wet and admit the glue readily to the pores andas well, allow the glue to coalesce with the films between the disk layers. Loose disks of any sort fail to aord the elastic quality peculiar to an ivory point, and are irregular in action and soon flatten out and become mis-shapen. The improved raw-hide point resembles the ivory in its elastic quality; is wholly free from tendency to crack or split and because it is shrunk to the cue possesses the notable advantages in which the ivory point is lacking.

Another object of the invention is to improve the structure of thecue in such wise that a removable tip can be applied in conjunction with a cuepoint of the character stated.

The exact nature of the improvements will appear from the description and be more particularly specified by claims at the conclusion thereof.

In the drawings which form a part of the specification like features 'of structure have like designation throughout.

Figure 1 is a sectional view of au implement conveniently used in making a true bore of proper depth at the center of the end-dowel; the cue and the bit being shown in place at opposite ends; Figs. 2 and 3, detail sections to show thefashioning of the central dowel on the' Serial No. 519,311. (No model.)

cue end; Figs. tand 5, section details to exhibit the seating of the point and threaded bushing; Fig. 6, an external view of the bushing; Fig. '7, views of the screw-bolt for the the glue familiar to billiard cue makers andv are then strung together over a suitable rod, and subjected to high compression by which expedient they are firmly united and reduced to a compact state although still possessed of the even, responsive elasticity which characterizes an ivory cue-point. On removal from the rod, after drying,.the disks appear as a long roll which can be cut into lengths suited to .that of the end-dowels over which the points are to be set.

If the dowel is not made in turning the cue, it can be conveniently formed by use of the simple apparatus as shown by Fig. l. The terminal of the 4cile b is thrust snugly home within the taper-end of the chuck c and the gage d moved to position against the cue and there held by set-screw e. The bitfis operatedA to bore a hole which willalways be of uniform depth as determined by contact of shoulder g on the bit with the end ot' gage d. On withdrawing the cue, the hole 'L' thus made in its end (Fig. 2) serves to position a center-boring bit which is next applied to reduce the cue terminal and so form the dowel (Fig. 3). A

, proper length of the raw-hide disk-roll sufticient to incase the dowel is then cut, and applied thereto after being coated with glue along the central hole. At the same time the threaded bushing k, likewise coated with glue on its outer surface is set within the dowelhole, and both disk-point and bushing stoutly driven home, mutually acting to sustain the wall of the dowel between them. When seated in place the parts are left to dry, the coating IOO of glue on bnshingc distributing itself along the vertical and'cross channels (Fig. 7) so as to rmly lockthe bushing in itssocket against either rotation or end play. To insure thorough coating of the plug la the socket for the bushing can be filled with glue before the bushing is driven in.

The bushing k usually extends the full depth of its socket so as to secureatirm bearing at the bottom against the body of the cue. At its opposite or outer end, the bushing lo may have a roaming tool applied with advan tage, to form a counter-seat. If otherwise, the bushing contacts prematurely with the adjacent part of the cue-tip and so far obstructs the tip from eecting a true seat over the confronting face of the point.

In usual practice, the cue is furnished with a replaceable tip which consists of the ordinary leather head l united by gluing to a rawhide disk-washer m which latter affords a seat for the crown of the screw-bolt it. The crown is madeangnlar, and rather large but is sufficiently thin to smoothly embed itself in the washer when driven down. A hole in the washer admits the shank of the bolt, and being somewhat smaller, clings to the shank and may form a bulge o which comes neatly within thecounter-seat on the end of plug 7c. The head Z and washer m are smooth and level at their meeting faces and after gluingare firmly compressed to insure perfect union. Inf drying,\the washer m being of raw-hide shrinks slightly and because of itsl durable, unyielding character keeps the head lof the tip firmly in place and shape at the meeting face be tween them and so far prolongs the lifel of the head.

The end of the point which is to resist the thrust of the cue-tip is carefully dressed, by sand-papering or like expedient, t0 render the surface level and at even bearing throughout with the cue-tip that is to rest thereon.

Care must be taken to prevent any premature contactof the end of the dowel or bushing with the tip such as would obstruct the iirm contact between point and tip as desired. The bushing and dowel may be reamed out to insure this, if necessary.

If the cue-tip as applied to the improved cue-point is of the replaceable sort, a touch of glue between confronting faces of tip and point will hold the two firmly together, on screwing the tip down to position. The outer face of the point can be dressed and polished and if the raw-hide disks be stained, presents y an attractive Iinish.

' The central dowel over which the disks are set supports these against breaking crossstrans which otherwise ensue it' a smart rap be given at the side of the point. The presence of the bushing supplement'sthe action of the dowelwall in this regard.

Having thus described the invention, what I claim as new, and desire' to secu r'e by Letters Patent, isf-- 1. A billiard cue having an end-dowel,the usual head or' tip and an- `interposed elastic point consisting of rawhide disks or annuli compressed and united together and glueshrnnk about the dowel, substantially as described.

2. The combifnationi` with the billiard cue having afhollow end-dowel, of the united set of compressed elastic' disks incasing said dowel to constitute the point, the threaded bushing securedwithin the dowel, the screwbolt engagedby the bushing, the washer extended overthe d isle-point, dowel` and bushing and having the bolt-head seated therein and the cue-tiplfa'stened in place above the washer, substantially as described.

NICOLAS BOSMANN.

Witnesses: i

JAMES H. PEIRCE, ALBERTA ADAMIGK.

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