San Antonio daily light. [volume] (San Antonio, Tex.) 1886-1907, 1895-09-12
RECsNILYpATsMTED INVENTIONS
From the Scientific AmeIicaul

prises frame formed at its middl
with trunnions journaled in suitabl
bearings attached to a desk or othe
convenient support. The frame j
counterbalanced, and shelves ar
held on its free ends. spring press
ed locking device locking the frame
in any desired position, the device
being more especially designed fol
supporting large books, such as
court records, abstracts, ledgers
etc, in such manner that the open
book has the top leaves at a level.
WINDOW, John B. Grattarola,
New York City. This invention
provides a simple mechanism to
permit of readily sliding the sashes
up and down and to swing them
inward to give access to both faces
10 facilitate cleaning them. The
sash is pivoted at one side on a
sliding bar or guide piece, and
adapted to be locked at its other
side to a removable part of the
sash guide way.
POCKET GUARD.-Patrick Cur
ran, Romeo, III. This is device
for securing a pocket book, watch
or similar article in pocket, the
article being readily removed when
desired, but so secured that it must
be pressed downward when taken
thus giving notice to the wearer.
1t consists of strip of metal bent
upon itself to form opposite men,
beers, one member having Tugs en-
gagged by pins, and both members
having interlocked tongues. The
watch or other article is attached
to the device, and the pins engage
the pocket.
INDICATOR FOR PIANO STOOLS.
Carlo Brizzi, New York City.
This is a device to indicate whether
or not the stool is at the proper
height for the player: From the
lower end of the threaded spindle
supporting the seat extends a square
rod on which is pinion held in
suitable bracket support, and pin
ion is in mesh with gear teeth on
dial, placed horizontally or diago-
nally to be most conveniently seen
by the player, the dial being mark
ed with graduations, and being
turned by the pinion as the seat is
moved up or down, its position
being at all times indicated by a
pointer.
LOOM PILE WIRE HOLDER AND
CUTTER. Victor Vizet, New Ro
chelle, New York. According to
this improvement the cutter is
made in one piece with the sheath
to receive the end of the wire,
whereby the pile wire holder is
made much stronger than heretofore
and the article is simpler to man.
ufacture.
MAKING CHLoRINE.-James J.
Powers, Cortlandt, N. Y. This in
venter has devised an apparatus for
making chlorine gas and similar
substances, in which a substance
has to be treated by an acid, and in
which the acid is measured to Sc
cureproper proportion of weights
and volumes, a safety appliance
being provided to prevent explo-
sion. An open top measuring tank
is connected by a pipe with a sto.
rage tank into which air may be
forced to push out the acid, which
a pressure tank receives as it is
discharged by gravity from the
measuring tank, and generating
still being connected by pipe with
the pressure tank.
DENTAL CLAMP.-Joseph NJ.
Strout, Portland, Me. This is an
improvement upon formerly pat
ented invention of the same inven-
tor, designed to afford a practically
perfect adaptability of the retain
| ing arm of the device to irregular
surfaces of teeth, and secure any
desired tension upon the arm.
Means are also whereby the gum
at the neck of the tooth will be
protected while the root is being
trimmed preparatory to applying a
crown.
AToMIzER. Charles Wagner,
New York City. This device con
sists principally OF cylinder on
which is Waived suction pipe, a