The evening world., 1891-08-10
HOW DOES THE CLOCK MOVE!
Interesting and Puzzling Time
piece in a jewellers Window.
Two Glass Globes without An,
Visible Mechanism.

NJ. Wollman, the jeweller, Of Council
Bluffs, Ia, has given the curious ampla
opportunity to test their ingenuity in AN
endeavor to fsthom the mystery of n clock
which he has recently completed and
placed in one of his show. windows, saw
the Jeioeliers' Weekly. So far the most mar.
sistent have failed to discover the in.
fuence that lmpels the unique timepieca
80 accurately to record the hours and
minutes. A short time ago Mr.. Wollman
made an electric clock that attracted AZ.
tention, not only in Council Bluffs, but
in expert circles elsewhere.
The mysterious clock is far ahead Of tbs
electric apparatus in many respects. In
appearance it resembles the colored al.
cohol signs in a drugstore window, being
simply two glass globes placed one above
the other.
They are supported bya delicate I,edes.
tai which is notched to show that it does
not conceal mechanism.
The base is piece of solid cherry wood
turned out eight inches in diameter.
From this the slender pedestal rises and
supports the first globe, which is about
seven lnCneb III ulAmeleT. On IllB QlODA
is dial marking the minutes.
Screwed to the base is q solid metal
hand which points to the minutes as they
go by, the globe making one complete
revolution in each hour.
Above this is the smaller globe, about
four inches in diameter. with dial
around its equator indicating the hours.
A piece of silyer-plated steel spring bent
in the form of the figure 3 is screwed 10
| Tho haua fnrDninu ~ tho ton nj frr ~.
two globes and carrying the stationary
hand that points out the hours on the
smaller globe, which revolves once Gin
twelve hours.
The globes are of very thin and trans.
parent glass and have no apparent con.
nection with each other at the top Of the
base, except by the delicate pivots that
penetrate only a small fraction of an inch
| into the glass and form the axis upon
which the globes revolve.
Another popularity that renders the
mystery of the mechanism still moro pro-
found is the fact that either of the globes
can be revolved backward or forward on
their delicate pivots with great rapidity
and without injury. When the motion
ceases they resume their functions, los
| ing only the time occupied in spinning
them.
The whole device is set on mirror in
| the showcase and can be picked up and
examined at will.
| The mystery is the force that moves the
globe 30 accurately and continuously, one
Just twelve times faster than the other
and both in perfect time with the jewellers
regulator. which looks down upon che
strange device as much lnystified as the
mechanical expert who critically exam
ines the novel clock, or the street gamin
who gazes upon it through the show win
dow.
1t has been intimated that sunlight or
heat is the motive power. but Mr.. Woll-
man has disproved this by placing the
timepiece in the shadow.
With the exception of the glass globes
every part of the mechanism has been
made by Mr. Wollman at his bench. 1t ID
a strange and remarkable production, and
bids fair to remain puzzle until its maker
sees fit to reveal his secret.