Wireless-Telegraph Receiver Page: 2 of 4
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UNITED STATES PATENT OFFICE.
WESLEY M. WAY, OF AUSTIN, TEXAS, ASSIGNOR TO GEORGE W. TROMMLITZ, OF GALVESTON,
TEXAS.
WIRELESS-TELEGRAPH RECEIVER.Specification of Letters Patent.
Patented April 20, 1909.
Application filed March 7, 1908. Serial No. 419,780.
To all whom it may concern:
Be it known that I, WESLEY Al. WAY, a
citizen of the United States, residing at
Austin, in the county of Travis and State
of Texas, have invented a new and useful
Wireless-Telegraph Receiver, of -which the
following is a specification.
This invention has reference to improve-
ments in wireless telegraph receivers, that
n is, means for receiving intelligence coin-
municated by electric waves, and is designed
more particularly for using silicon or other
crystalline substance as the detector element.
The present invention comprises a holder
5 for a lump of the rough crystalline sub-
stance together with means for adjusting a
movable circuit terminal in the proper re-
lation to the crystalline substance when
seated in the holder, and provision is made
20 for all the adjustments found necessary.
More specifically considered, the inven-
tion comprises a cup or holder for a crystal
or a mass of crystals for the substance used
capable of rotating on a vertical axis, and in
2, conjunction with this holder there is a car-
riage also capable of rotative movement
upon a vertical axis. The carriage supports
a bar mounted upon trunnions so as to move
about a horizontal axis, and this bar is pro-
vided with opposing springs so that it may
be adjusted accurately as to the pressure
desired, and carried by the bar is a terminal
screw which may be brought into contact
with the crystal or mass of crystals in the
: holder. The carriage and the parts sup-
ported thereby are connected up on one side
of the circuit of: the aerial and the holder
for the crystal is connected up ion the other
side so that the ether or ilertzian waves
.0 must pass through the crystal. The detector
may be coupled up to the aerial and receiver
circuit in the usual manner.
The invention will be best understood
from a. consideration of the following detail
" i description taken in connection with the ac-
companying drawings forming part of this.
specification, in which drawings,-
Figure 1 is a side elevation of the de-
tector. Fig. 2 is a plan view with parts
50 broken away -and the circuits shown dia-
grammatically, Fig. 3 is a detail section
through the holder for the crystal, and Fig.
4 is an elevation of the carriage with the
bar. is section and the crystal holder re-
ss moved.Referring to the drawings, there is shown
a base 1 which may be of any suitable ma-
terial, and it is to be considered indicativee
of any suitable support, since the parts
mounted upon the base. may be otherwise co
mounted. This base is of course of suitable
insulating material. Fast upon the base
near one end thereof is a plate 2 secured to
the base by screws 3 or in any other suitable
manner. Rising from the' middle .bf the 65
base is a post 4 which may be suitably
screw threaded for the reception of a clamp
nut 5.
Mounted upon the base 2 is a yoke-shapedl
carriage 6 suitably perforated for the pas- 70
sage of the post 4, and this carriage is held
to the plate 2 by means of the clamp nut 5,
the post 4 passing through the carriage at a
point midway of its length. The carriage
may consist of a single metallic strip having 75
its ends bent at approximately right angles
to the middle portion and extending upward
with the ends 7 parallel one to the other
but spaced apart an appropriate distance.
Each leg end 7 is appropriately tapped for 80
the passage of'a pivot screw or thumb screw
8, to which latter there is applied a clamp
nut 9. The ends of the screws S are sock-
eted for the reception of the pointed trun-
nions 10 either formed on a bar 11 or made 85
of a rod pointed at each end and extending
laterally through the bar 11. Both the bar
[1 and the trunnions 10 may be similar in
construction to the ordinary key lever of the
telegraph transmitter of the commercial 90
type. This bar 11 has a short extension 12
on one side of the trunnions and the long-
ueuber on the other side of the trunnions.
About midway of the length of the long end
the bar 11 is tapped for the passage of a 95
thumb screw 13, and this thumb screw car-
ries a clampi unit 14. The free end of the
thumb screw has secured thereto a hook 15
receiving one end of a helical spring 16, the
other end of which engages a hook 17 fast 100
on the corresponding side of the carriage (3
adjacent to the clamp nut. 5. On the other
side of the carriage from the hook 17 is
another hook 18 receiving one end of a
helical spring 19, the other end of which is 1o5
fast on a hook 20 secured to the end 12 of
the arm 11. The end 12 of the bar 11 remote
from the extension 10 is tapped for the pas-
sage of a long thumb screw 21 carrying a
clamp nut 22. 110No. 918,618.
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Way, Wesley M. Wireless-Telegraph Receiver, patent, April 20, 1909; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth511318/m1/2/?rotate=270: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.