THE MONITOR CHALK CUP.

The annexed engraving represents an improved chalk cup or holder

for billiard tables, which is so constructed that it will not become

loose, sag down, mar the table, or jar when the ball strikes the

cushion. It may be adjusted to remain in any desired position.

The shank is pivoted in a metallic frame which is secured to the

table. The rear end of the shank works against a spring. On the upper

portion of the shank is a projection which embraces a horizontal

flange to sustain the box against being forced downward. The

arrangement is very similar to the ordinary window catch. The player

has only to start the box from its position under the table, when

the spring carries it out at right angles to the rail. A touch is

sufficient to cause the spring to carry the box back to its former

position. The device is very simple, and its advantages will be

evident to all billiard players cognizant of the defects of the

ordinary cup.

[Illustration: THE MONITOR CHALK CUP.]

Patented May 1, 1877. For further particulars, address the

manufacturer and patentee, Mr. H. W. Collender, 738 Broadway,

New York city.

* * * * *

Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 50 / 213 题