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Патент USA US2407818

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5891‘ 17, 1946-
‘
1,6. DE‘ALMEIDA
2,407,818
. ‘AUTOMATIC TELEGRAPH TRANSIITTER
Filed June ‘a, 1944
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2 sums-sum 1
H I IH
IN VEN TOR.
Games dg'
By W
4,}, ATT‘V.
Sept-l7, 1946- ‘
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J. 6. DE ALMEIDA
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AUTOIATIG TELEGRAPH TRANSMITTER
Filed'Juné s, 1944 j
2,407,313
’
2 Sheets-Sheet 2
1:15.
42 45 44
INVENTOR. .
IBsé. 6omes de Almeuda
Patented Sept. 17,1946
2,407,818
UNITED STATES PATENTTOFFICE
2,407,818
AUTOMATIC TELEGRAPH TRANSMITTER
J osé Gomes de Almeida, Rio de Janeiro, Brazil
Application June 8, 1944, Serial No. 539,238
In Brazil June 8, 1943
3 Claims.
1
The present invention relates to improvements
(Cl. 178—.17)
2
and 2, I is a channelled table over which the
in automatic telegraph transmitters of the type
perforated tape (not shown) is guided.
in which the signals are transmitted to the line
under the control of peckers which scan a per
notes a pressor arm which serves to keep the
passing tape in position, and which may be raised
forated tape passed through the transmitter.
or lowered by means‘ of a handle 3. The table I
and the pressor arm 2 are each provided with two
More speci?cally, the invention *relates to im
2 de
longitudinal slots 4, shown in dotted lines in Fig.
1, the slots in the pressor arm 2 forming continu
ations of those in the table I. A roller 5 pro
One object of the'invention is to provide a 10 vided with radially projecting teeth 6 is mounted
at the rear end of table I on a shaft 1 which
pecker mechanism of very simple and reliable
passes through the vertical panel 8 supporting
construction which can be arranged in a limited
the table I (see Fig. 1). The opposite end of the
space.
shaft ‘l which projects from the rear face of the
Another object of the invention is to provide a
pecker mechanism in which‘ the elements op 15 panel 8 carried ?xed thereon a comparatively
large toothed wheel 9 (see Fig.‘ 3) which may be
erated upon by the cams or eccentrics are pro
coupled to any desired prime mover (not shown)
tected by easily exchangeable wear plates.
for continuous rotation. To peckers H, curved
A further object of the invention is to prow'de
at their upper ends, project into the slots 4 of
eccentrics to control the pecker operations, which
consist of wear resisting material.
20 table l for cooperation with the perforations of
the tape pulled over said table by the roller 5.
A still further object of the invention is to pro
The peckers H are, at their lower ends, integral
vide a signal compositor unit in which the trans
with‘ horizontal pecker bars l2, projecting radi
mitter lever is normally urged into contact with
ally from two pecker sleeves I20 and IN. The"
one of a pair of stationary contacts and can be
rocked by pecker controlled transmitter bars 25 pecker sleeves Ho and l2d are rockably mounted
side by side on a common pecker axle Ila pro
past a dead center position into contact with the
jecting at right angles from the front face of
other contact of said pair.
.
the panel 8. Two transmitter bars I21: and no
Still another object of the invention is to com
are integral with the pecker sleeves I20 and l2d,
bine the pecker mechanism and. the signal com
respectively, and project radially therefrom in
positor of an automatic telegraph transmitter
provements in the pecker and signal compositor
mechanism of automatic telegraph transmitters
of this type.
a downward direction (see Fig. 1). Two wire
springs 14, each ?xed at one end to one of the
mutual relationship for ef?cient cooperation dur
horizontal mcker bars l2 (see Fig. 2) are wound
around the pecker sleeves [2c and’ 12a‘. and pro
ing the working of the transmitter and for easy
accessibility and exchangeability in case of fail- 35 ject upwardly from said sleeves at l5, their up
ure.
7
per‘ ends it being curved, as shown in Fig. 2,
to extend substantially parallel to the pecker
These and other objects which will appear
more clearly as the speci?cation proceeds are ac
bars I2. Each spring carries‘on its upper end
a tubular sleeve ll. A bar-shaped Wear plate
complished, according ‘to the present invention,
by the arrangement and combination of ele 40 I9 is inserted into the free end of each sleeve l1
and is exposed through‘ a slot l8 provided in the
ments set forth in the following detailed descrip
tion, de?ned in the appended claims and illus
underside of the sleeve.
tratively exempli?ed in the accompanying draw
A cam shaft l3 passes through a bushing 2|
ings in which:
traversing the panel 8, ‘one end of said cam
Fig. 1 is an end View of the upright panel on
shaft projecting from the front face of the panel
which the pecker mechanism and the signal
between the pecker bars [2 and the sleeves",
compositor are mounted.
and its opposite end projecting from the rear
Fig. 2 is a front view of this panel, on a smaller
face of the panel 8 and having ?xed thereon a
scale, seen in the direction from the left in Fig. 1.
pinion 22 in mesh with the toothed Wheel 9.
Fig. 3 is a rear view of the panel, on the same 50 Two eccentrics 20 made of wear-resisting ?brous
scale as Fig. 2 but seen from the opposite side,
material are ?xed on the front end of cam shaft
and
13, each eccentric Z0 cooperating with one pecker
Fig. 4 is a separate, perspective view of the
bar 12 to prevent it normally from rocking up
compositor unit.
wardly and with the corresponding sleeve l‘! to
Referring to the drawings, and ?rst to Figs. 1
maintain this sleeve and‘the spring connected
with an upright panel on which the various ele
ments are removably mounted in their proper
2,407,818
3
thereto normally in a position in which it urges
the pecker bar I 2 upwardly against the eccentric
20.
.
'
Each pecker bar I2 passes through a holder
23 supporting a bar-shaped easily removable
wear plate 23a, and the eccentric 20 act directly
on the wear‘ plates l9 and 23a which can be
easily replaced whenever necessary, so that the
life of the springs and pecker bars I2 is in?nitely
' prolonged.
The signal compositor unit comprises a hori
zontal shelf 24 mounted on the panel 8 and pro
jecting from the front face thereof below the
pecker sleeves I2c, I2d with its center line dis
being aligned with one another and making elec
trical contact with three terminals 45 projecting
at right angles from the front face of panel 8.
Iclaim:
‘
1. In an automatic telegraph transmitter, a
tape support over which tape can be Passed in
a predetermined tape plane, a pecker axle exe
tending parallel to said tape plane, two pecker
sleeves rotatable on said pecker axle, two pecker
10 bars projecting radially from said two pecker
sleeves, respectively, substantially in a plane
parallel to said tape plane, two peckers, integral
with the free ends of said pecker bars, respec
tively, and projecting at right angles from the
posed in a vertical center plane parallel to and 15 latter toward said tape plane, a cam shaft ex
to one side of the pecker axle Ila. The shelf .
tending parallel to said pecker axle adjacent to
24 has at its outer edge 25 two projecting lugs
and transversely of said pecker bars, two eccen
between which a rocking shaft 26 is mounted;
trics ?xed on said cam shaft for cooperation
A rocking pin 21 projects radially upwardly from.
the shaft 26. Two contact posts 28, 29; are
with ‘said two pecker bars, respectively, said ec
mounted on the shelf 24 on opposite sides-of
the center plane, and are provided near their
ing movements of said pecker bars and peckers
towards said tape plane and to permit rocking
of each pecker bar and pecker towards said tape
tops with two small radially projecting contacts
30 facing each other.‘ A thin spring blade ex
tends from the top of rocking pin 21 to the ad
jacent end 33 of a transmission lever 32, which
end 33 is formed as a contact for cooperation
with the contacts 30 on the contact posts 28, 29.
A spring 34 secured at one end to the rocking
centrics being shaped to' prevent normally rock
plane for a fraction of each revolution of the
cam shaft, two wire springs, each having one
end thereof supported on one of said eccentrices
and being wound around said pecker axle with
the opposite end of each spring acting on the
corresponding pecker bar to urge the same
_in 27 and at its opposite end to a stationary 30 against the associated eccentric, two substan
pin 35 projecting upwardly from the shelf 24
tially parallel transmitter bars integral with said
serves to urge the rocking pin 27 toward the
pecker sleeves and projecting radially therefrom,
transmission lever 32, thus causing the head of
and a transmitter lever disposed adjacent the.
pin 2'! to bear against the blade 35. A disc 36
free ends of said transmitter bars, said trans
disposed on the shelf 24 carries a fixed bracket
31 including a horizontal arm which is traversed
' mitter lever being rockable on an axis in a plane
extending between said transmitter bars at right
by a screw 38. The axle 3B of the transmission
lever 32 is pivoted between the disc 35 and the
angles to said pecker axle. ,
screw 33 for rocking movements about an axis
signal compositor comprising a support plate,
1 I ‘
,2. In an automatic telegraph transmitter, a
located in the intersection of the center plane 40 two lugs projecting from one edge of said plate,
of said shelf 24 with a second vertical plane
a rocking shaft mounted between said lugs, a pin
extending parallel to the face of panel 8 between
projecting radially from said rocking shaft sub
the two transmitter bars 12a and I211‘. The
stantially centrally thereof, a spring between-a
lower ends of the transmitter bars act upon the
?xed point on said support plate. and said pin,
arms of the transmitter lever 32 on opposite sides ' a pivot member supported on said plate at right
of the pivot axis, to rock the transmitter lever
angles thereto with its axis disposed in a central
towards contact posts 28 or 29. It will be clear
plane containing the axis of» said pin, a transe
that rocking of the pecker sleeve I20 in clock
mitter lever carried by said pivot member parallel
wise direction, which occurs under the influence
to said plate and having an arm extending from
of the associated spring when the corresponding 50 said pivot axis towards said pin, a spring blade
pecker bar i2 and pecker iI are freed by the
connecting the head of said pin with the ad
corresponding eccentric 25 at a time when a
J'acent end of said transmitter lever, two contact
suitable perforation in the tape permits this
posts'on opposite sides of the transmitter lever,
pecker to rise, will cause the contact 33 on the
and pecker controlled transmitter bars to rock
transmitter lever 32 to touch contact 3!) on con 55 said transmitter lever back and forth past its
tact post 28. When the transmitter bar I20 is
dead center position from a position in which
returned by the associated eccentric to its original
it is urged against one of said contact posts into
position, the rocking pin 21 acting under the
a position in which it is urged against the other
influence of spring 34 on the blade 3I holds the
contact post and vice versa.
'
lever 32 pressed against contact post 28 until a 60
3. In an automatic telegraph transmitter, an
subsequent clockwise rocking of pecker sleeve I 2d
upstanding panel, a horizontal pecker axle pro
causes the transmitter bar I2b to strike against
jecting from said panel, two pecker sleeves loose
the other arm of transmitter lever 32, thus forc
on said pecker axle, two substantially parallel
ing the same past its dead center position to
and horizontal pecker bars projecting radially
wards the other contact, post 29. The shelf 24 65 from said two pecker sleeves,v respectively, two
is mounted in the panel 8 by means of two short
peckers integral with the free ends of said pecker
pins 40 and a long locking pin 4| with a locking
bars and projecting upwardly therefrom, a rotat
head 4Ia, all projecting from the inner edge of
able cam shaft projecting at right angles from
the shelf 24 into suitable holes provided in the
said panel at a level slightly above said axle and
panel 8.
70 transversely of said pecker bars, two eccentrics
Three contact blades 42, 43 and 44 connected
?xed on said cam shaft for cooperation With said
through insulated conductors passing through the
two pecker bars, respectively, said eccentrics
shelf 24 to the contact posts 28, 29 and the disc
being shaped to prevent normally upward rock
33, respectively, are secured by means of nuts
ing of said pecker bars and peckers and to permit
45 to the underside of shelf 24, the three blades 75 upward rocking of each pecker bar and pecker
2,407,818
5
6
for a fraction of each revolution of the associated
eccentric, two wire springs, each having one end
supported on said shelf for pivotal movement
thereof supported on the top of one of said
eccentrics and being wound around said pecker
axle with its other end ‘acting on the corre
about a vertical axis located at the intersection
of said center plane with a vertical plane ex
tending parallel to the face of said panel be
tween said pecker bars, a transmitter lever car
ried by said pivot member parallel to said shelf
and having two arms extending from said pivot
panel below said pecker sleeves with its center
aXis towards the outer and the inner edge of
said shelf, respectively, a spring blade connecting
line disposed in a vertical center plane extend
ing at right angles to said panel and near said 10 the head of said rocking pin with the adjacent
‘end of said transmitter lever, two contact posts
pecker axle at one side of the latter, said shelf
projecting upwardly. from said shelf at equal
havingr at'its outer edge two outwardly project
ing spaced lugs, a rocking shaft mounted be
distances ‘from the outer edge thereof and on
tween said lugs, a, rocking pin projecting radially
opposite sides of said transmitter lever, and two
substantially parallel transmitter bars projecting
upwardly from said rocking shaft in said center
radially downwardly from said two pecker sleeves,
plane, an element projecting upwardly from said
sponding pecker bar to urge the same normally
upwardly, a horizontal shelf mounted on said
respectively, to act with their free ends on the
shelf in said center plane at a distance from
said outer edge, a spring between said rocking
two arms, respectively, of said transmitter lever.
pin and said projecting element to urge said
JOSE’ GOMES 1m ALMEIDsA.
rocking pin towards said panel, a pivot member 20
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