Evening star. [volume] (Washington, D.C.) 1854-1972, 1927-07-03
INCREASED DEMAND
FOR RADIO PATENTS
Office Here Now Receiving
Applications at Rate of
125 Monthly.

Applications for patents on differ
ent types of radio apparatus are
coming into the United States Patent
Office at the rate of about 125
month, compared with less than half
that number in 1920. The space de-
voted to sections handling radio mat
ters and the files has been doubled in
the past six or seven years. This sit
uation indicates considerable expert
mentation with different phases of
radio going forward, and that many
of these experiments are proving so
worth while that applications for
patents are sought. Their public an
nOuncement is slow, for only about 20
or 30 patents are issued each month.
1t appears that most Of them are
practical, for many are assigned to
large manufacturing companies on
issuance.
Among the recently announced
patents are several assigned to Wired
Radio of New York and the Ameri-
can Telephone & Telegraph Co., COW
ering two means of transmitting
broadcast programs by wires: those
acquired by the former deal with
transmission over electrical: light and
power lines and by the latter over
telephone wires. These assignments,
following, as they do, many in the
past, indicate that sooner or later true
radio broadcasting is to have COM
petitors in the field of serving the
public with entertainment.
New Signaling System.
Recent assignments to Wired Radio,
which is owned by the North Anleri
can Co., include the invention of AL
fred Crossley of Washington covering
radio signaling system. A radio
frequency choke -coil system. also in
vented by Mr.. Crossley, has been pro-
cured by the same company. Wired
Radio is the aSSignCr of All invention
of DR.. Albert H. Taylor of the Naval
Research Laboratory of Washington
covering signal transmission sys-
tenn" believed adaptable to the wired
wireless means of broadcasting. DR..
Taylor's recent patent for recording
electric signals has also been pur-
chased by Wired Radio.
Patents lately secured by the Amer
lean Telephone & Telegraph Co. in
clude means for distributing intelli.
gence. including a system designed to
offer subscribers their choice of three
programs, invented by Herman A.
Affel of Maplewood, n. j.: patent on
program selecting circuits, the inven-
ton of Maurice f. Strictly of Milburn,
n. j.. and a system for transmitting
and reproducing pictures. patented by
Merton c. Hall of New York city.
This process can, however, scarcely he
contemplated in a scheme for enter
tanning subscribers, since it includes
mean MS of coloring the reproductions
transmitted from records of the pic
ture. and would require complicated
receiving equipment. Two inventions
covering a radio receiver and trouble
alarm systems. patented by Ralph K.
Potter of New York, are now owned
by the American Telephone & Tele.
graph Co.
Maryland Invention.
The Western Electric Co. is the
owner of an invention covering re-
peater circuits for multipleX systems
by Jacob S. TANNER of Cumberland,
Md, which appears to have radio
adaptations. The Radio Corporation
of America is now the owner of a
means Of adjusting wave lengths. in
vented by George Clark of Washing.
ton, d. G. The General Electric Co.
has acquired the rights to a form of
automatic antenna regulation. pat
S1CSu IGCSHlIy ny w IllldHl w. bIOWH
of Schenectady, n. Y: the Stromberg-
Carlson Telephone Manufacturing Co.
has secured the rights to use two
patents covering multiple controlled
variable condensers, taken out by
Ray II. Mansfield of Rochester,. n. Y.
The invention of a ''glow-discharge
transmitter." involving two patents
by Phillips Thomas of Englewood
Park, Pa, has been assigned to the
Westinghouse Electric Manufacturing
Co. A new portable radio apparatus
for use on automobiles. invented 10y
William NJ. Heina of Bronx. n. Y,
has been assigned to Heina Radio
Corporation. The Timmons Radio
Products Corporation of Philadelphia
has secured the rights to an electric
tube simplifying apparatus. patented
by Roy S. Fisher of that city. A new
vacuum tube device has been pat
ented by Arthur J. White of East
Cleveland, Ohio. and assigned to the
General Electric Co.
Other recent patents include radio
receiving apparatus patented by Will
liam NJ. Cady of Newark, n. j.; an
electric-wave producing and changing
device patented by Edward J. Murray
of Brooklyn, n. Y, and a radio fire.
alarm system devised by Henry Gar
rett of Dallas. Tex. The last are as
yet unassigned.
Czechoslovakia now has three
foilrthS of tho iOdnctrv Of the for