close

Вход

Забыли?

вход по аккаунту

?

код для вставки
Sept. 24, 1946.
2,408,320
J. M. KUHLlK
SOUND RECORDING AND REPRODUCING MACHINE
Original Filed July 4, 1942
'2 Sheets-Sheet l
2
9%‘
3
H
.w
-
r1
v
__a,
a$09F
M0
a:2,3m
0%‘-./{ 1
3
m
M
.M
__
w 9w
323
m
50.
a
q
V 82
.n
5
3
3..
M
u
w
A?“
65'_|106
33"33.
0
500?H.w
52
4e
v.
l7
a.
m
1u
m.
a
w. -
5
a
M
M
33\l
190
I‘
a
w”.
A
w:
zm-1 _
c
INVENT R.
%/
Sept. 24, 1946.
2,403,320
J. M. KUHLIK
SOUND RECORDING AND REPRODUCING MACHINE
Original Filed July 4, 1942
-2 Sheets-Sheet 2
206
30 6
.
or
_ 3
319
32 I
|__..;........r
/
-
I
5 627
_>.............
m
|
,
,
.
1512?
1
Patented Sept. 24, 1946
2,498,326
UNITED STATES PATENT OFFICE
2,408,320
SOUND RECORDING AND REPRODUCING
MACHINE
Jacob M. Kuhlik, Brooklyn, N. Y., assignor to
Hattie B. Kuhlik, Sea Gate, N. Y.
Original application July 4, 1942, Serial No.
449,710. Divided and this application Novem
ber 23, 1943, Serial No. 511,400
7 Claims.
1
This invention relates to sound recording and
reproducing machines and is a division of my
application Serial Number 449,710 ?led July 4,
1942.
A primary object of my invention is to provide
a machine of this type that is simple and inex~
pensive to manufacture, compact in structure
and positive in action.
Another object is to provide means for auto
(Cl. 274—11)
2
chine may be mounted in a portable case or may
be mounted on a ?xed support as desired. It
includes a horizontal base plate i on which is
mounted a vertically disposed wall 2a substan
tially centrally positioned on the plate. This
wall, together with a panel 20 spaced forwardly
thereof and extending downwardly from the top
to a point just above the center thereof, supports
the various units of the machine.
matically stopping the ?lm driving mechanism at 10
Supported for bodily movement at the bottom
predetermined points along the strip of ?lm dur
and at the ends of the wall 2a are reels 26a and
ing recording and rewinding.
am for supporting a traveling strip of ?lm 4.
Another object is to save ?lm material by oper
ating upon the ?lm over a limited length of ?lm
only.
Another object is to provide means for shift
ing the sound head from track to track on the
?lm.
Another object is to provide improved means
When recording, the reel 3 la is a supply reel and
the reel 26a is a receiving or take-up reel, and
when rewinding said reel Sla is a receiving reel
and the reel 26a is a supply reel.
The ?lm 4 may be suitably marked at spaced
intervals therealong, with identi?cation marks,
for indicating the various spaces or zones.
For
for driving the strip of ?lm for recording and 20 instance, it may be marked at every foot of its
.
length with a number, starting at the lead end
A further object is to provide means for longi
thereof with the number “1” and numbering the
rewinding purposes.
tudinally tensioning the ?lm.
zones consecutively to the end of the ?lm. Other
Still another object is to provide means for
identi?cation marks may be used of course, such
relieving the tension on the ?lm for rewinding. 25 as, the letters of the alphabet.
Another object is to provide means for indi
When recording, the ?lm 4 passes from the
cating the track upon which the sound head is
supply reel 3la upwardly and over an idler roller
operating.
200 supported by the wall 2a and thence over an
Another object is to provide means for shift
anvil or base 20| supported by said wall. When
ing the ?lm reels bodily.
30 passing over the anvil 201 it is adapted to be
Other objects and advantages of my present
engaged by the stylus of a head member or unit
invention will be apparent from the description
202 containing electromagnetic means for con
thereof to follow taken in connection with the
verting varying electrical currents into mechani
accompanying drawings in which—
cal movements of the stylus or for converting
Fig. l is a front view'of a recording and re 35 movements or vibrations of the stylus into corre
producing machine embodying one form of my
sponding electrical currents as is well understood.
invention, parts being broken away for the sake
The point of the stylus is adapted to cut a groove
of clearness.
.
’
or track in the ?lm as the ?lm is moved past
Fig. 2 is a top plan view of the machine of Fig.
the same in its forward travel from reel 3la
1, with parts above the path of movement of 40 to reel 26a. The head 262 is adapted to be
the ?lm being removed and parts being shown
moved transversely to the motion of the ?lm in
in section and parts broken away.
graduated steps in order that a large number of
Fig. 3 is a vertical sectional view taken on the
closely spaced grooves or tracks may be recorded
plane of the line 3-—3 of Fig. 1.
on a single strip of ?lm. Movement of the stylus
Fig. 4 is a plan view of the mechanism for 45 is controlled by the mechanism included in the
actuating the clutch.
head 202.
Fig. 5 is a perspective view of part of the
From the anvil, the ?lm passes over and fric
mechanism for automatically actuating the
tionally engages the surface of a drive roller
clutch releasing means.
203, and after leaving this roller it is tensioned
Fig. 6 is a front view of a recording and repro
by a roller 204 and then passes to and around
ducing machine embodying another form of my
the reel 26a.
invention, parts being broken away.
The mechanism for moving the ?lm along its
Fig. '7 is a fragmentary detail View of part of
path includes a driving shaft 206 which is oper
the means for indicating the position of the stylus
atively connected to a motor M. Rotatably sup
transversely of the ?lm.
ported in a suitable bearing in the wall 2a in
Fig. 8 is a fragmentary detail view on an en
larged scale of the mechanism for moving the
recording and reproducing head transversely of
the ?lm.
Referring to the drawings, my improved ‘ma
alignment with the shaft 206 and adapted to be
operatively connected thereto is a driven shaft
209, on the outer end of which the roller 203
is ?xed whereby the ?lm is frictionally driven.
The recording and reproducing head 202 is
2,408,320
25
4
mounted for step by step movement transversely
In the‘ form 'of‘my invention shown in Fig. l,
of the ?lm and its supporting anvil, The mech
anism for moving the head 202 transversely of
the reels am and 26a are'carried by a bar 300
the ?lm includes a bar or shaft 222 rotatably
on the inner side of wall 2a near the bottom
mounted in suitable hearings in wall 2a and
"thereof. The shafts 302 of the reels pass through
head 202 along said shaft as will be understood.
The carriage is so mounted on the shaft 222
that it is adapted to be moved in order to relieve
the pressure of the stylus upon the ?lm. This
clutch teeth 30'! adapted to be moved into opera
tive engagement with a complementary clutch
member 3E6 on the adjacent end of driving shaft
206 to connect said shafts.
The means for sliding bar 300 comprises an
elongated bar or lever 308 which has a slot and
stud connections at one of its ends with the arm
226 on shaft 225 and has a pivotal connection
slidably mounted in spaced bearing straps 30!
slots 302’ in said wall and each shaft has a pulley
panel 20. This shaft is provided with screw
303 ?xed to its inner end. Endless spring belt
threads for a portion of its length. A carriage
’ 304v passing around spaced peripheral grooves in
223 formed with a central opening with‘ internal
a roller clutch member 305 bring the drive from
screw threads is mounted on this shaft so that
the threads of the opening engage the threads 10 said shaft vto the pulleys 3-03 and reels. The
clutch member 305 is splined to the inner end
on the shaft. Rotation of the shaft by any suit
of driven shaft 209, which member has an elon
able means, such as a ?nger knob 235a formed '
gated hub portion formed at its outer end with
with a pointer, will move the carriage with its
pressure relieving means includes a flat spring
bar or plate 224, one end of which is fastened to
the top of the carriage 223 and the other end of
which is free and extends outwardly of and away
from said carriage. A shaft 225 is journalled
in wall 21; and front panel 2c near the top there
of and disposed parallel to shaft 222. Fastened
to the inner end of shaft 225 on the rear of the
wall 2a is an upstanding arm 225.
Secured to the shaft 225 is a disc member 236
at its other end with one arm 228' of a bell crank
pivotally supported by a stub shaft 300 rock
ingly mounted on the Wall 2a. The other arm
of the bell crank is pivotally connected to one
end of a lever arm 310, ‘the other end of said
arm 3H1 being connected to a stud on the Sliding
bar 300, whereby movement of'the shaft 225 is
provided with a U-shaped notch 23?, the disc
imparted to the slide 300.
being so arranged relative. to the carriage 233 on
Loosely mounted on the bearing sleeve for the
shaft 222 that the projecting free end of the 30
shaft 269 adjacent the inner face of drive roller
spring bar 224 is positioned within the notch 23''.
The end of the bar is adapted to assume four . 203 is a disc member 3H, which member by
means of a stud projecting from its outer face
different positions in the notch, which positions
may be indicated by the letters “a,” “b,” “c” and
supports the roller 20/3 in the plane of the drive
Normally this disc is positioned so
2c and arranged in an arc to conform to the
swing of the pointer 235 as will be seen from
that the roller 204 is disposed downwardly and
rearwardly of the drive roller 203 when record
“d” on a scale Z on the face of the front panel 35 roller 203.
ing so that the ?lm, after leaving roller 203,
passes rearwardly and over the roller 204 forming
pointer 235 points to “a” as in Fig. l, the disc 40 a loop and thereby exerting the necessary ten
sion upon the ?lm to keep it taut under the
236 on said shaft will have been moved around
stylus for recording.
so that the lower edge of the wall of notch 231
Means are provided for readily remow'ng this
will engage the free end of the ?at spring bar
loop portion of the ?lm so that the ?lm can be
224 and slightly lift the same upwardly to exert
Fig.1.
When the shaft 225 is moved so that the
a maximum pressure on the head 202 and its
stylus in order to supply the necessary pressure
for cutting grooves or tracks upon the ?lm for
recording purposes. This is the recording posi
tion and is indicated as “a” on the scale Z.
When the shaft and disc are moved to the po- ’
sition “b” on the scale, the upward pressure on
the bar 224 is released but the bar is in engage
ment with the lower'wall of the notch. In this
position only the dead weight of the head and
carriage is exerted on the stylus sumcient to keep
the stylus in position in the groove cut in the
?lm and touching the walls thereof for repro
ducing or play-back. This is the reproducing or
play-back position of the parts.
rewound or can pass from reel 26a to reel 3m
and over the roller 203 without any tension.
This
is accomplished by removing the roller 204 from
the path of movement of the ?lm and this is
done by rotation of the disc 3| I to carry the roller
around and upwardly above the uppermost layer
of ?lm to the position shown in dotted lines in
Fig. 1. When the roller is in this upper position
the ?lm passes over the roller 203 and under
;neath the roller 204 without touching the latter.
The means for rotating this disc 3| l includes a
pinion 3l2 ?xed to one face of the disc and which
is adapted to be engaged by the teeth of a gear
segment 3l3 pivoted on shaft 3G9. Shaft 309 is
rigidly connected to shaft 225 through the bell
When the shaft and disc are racked further 60 crank arm 228', lever 308 and arm 226 so that
to the “0” position, the bar is free of the walls
when said shaft 225 is rocked by the knob 235 to
of the notch and the carriage and head may be
the rewind or “(1” position, said shaft 309 is rocked
swung slightly and lifted sui?ciently to permit
thereby rocking gear segment SIS which rotates
the stylus to be removed and replaced. This may
the pinion 3l2 with the disc 3H and supported
be called the neutral position of the parts.
65 roller 204 thereby moving the roller 204 around
from its lowermost'position to its uppermost posi
tion, above and away from the path of movement
end of the bar 224 downwardly and the carriage
of the ?lm as shown in dotted lines in Fig. 1.
and head upwardly thereby lifting the stylus off
When the roller 204 is in this position, the ?lm
of the ?lm to permit the ?lm to move freely from 70 passes freely without any tension from the reel
the receiving reel 26a to the supply reel 3|a for
26a to the reel 3la.
rewinding. This is the rewind position.
The rocking of the shaft 225 for the purpose
This pressure releasing mechanism is more
of releasing the tension on the ?lm for rewind
clearly shown and described in my copending ap
purposes just described also at the same time
plication Serial Number 449,710.
moves the disc 236 around so that the upper wall
When the shaft and disc are rocked to the “d”
. position, the upper wall of the notch forces the
2,408,320
' 5
of notch 23‘! engages the outer free end of bar
224 and forces said end downwardly thereby lift
ing the head 202 off of the ?lm.
During these operations, the motor need notbe
6
ings in wall 2a and front panel 20 and disposed
parallel to shaft 209. A miter gear 241 is ?xed
to the outer end of shaft 246 and this gear is in
stopped as the film is running freely on the roller
203 but if it is desired to stop the motor a switch
continuous mesh with a pinion 241' on the end
of a shaft projecting from and operatively con
nected to a counting device 248 mounted on the
3001! may be provided on the front panel 2c for
front panel. The shaft 246 is driven directly by
this purpose.
The manual means for actuating the clutch
the shaft 302 of the reel 26a by means of a pulley
322 on the inner end of shaft 302 and an endless
mechanism for connecting and disconnecting 10 spring belt 322' operatively connecting said pulley
and a pulley 246' on the inner end of shaft 246.
shafts 206 and 209 is shown in detail and indi
The reel shaft 302 of reel 26a makes the required
cated generally at 3001) in Fig. 3 and includes a
number of rotations for the desired length of ?lm
horizontal actuating rod 315 slidably supported
movement, say 500 feet. The counting device
between the wall 2a and panel 2c and protruding
outwardly therefrom. A lever arm 316 extends 15 248 will of course be preset to correspond with the
correct mark on the ?lm so that the mark or
downwardly from the inner end of said rod 315,
number, for instance, as it passes under the stylus
its upper end being fastened to said inner end
will be registered on the counting device. A win
and its lower end being forked and engaging an
dow 248" is formed in the panel for viewing the
annular groove in a hub portion of the clutch
counting device in order to give the operator 2.
member 305. By reason of this construction,
chance to see what particular section or zone on
movement of the rod 315 inwardly and outwardly
the ?lm is being operated upon by the stylus.
moves the clutch member 305 inwardly and out
It will be here noted that the reel 26a is driven
wardly along the shaft 209 whereby the shafts 206
in one direction by the belt drive 304. When it
and 209 are connected and disconnected. A ?n
is desired to rewind the ?lm, the machine is
ger piece 311 is mounted on the outer end of the
stopped and the parts set to rewinding position
rod 315 to facilitate movement thereof. Encir
by turning the ?nger knob 235 until it points to
cling the rod adjacent its inner end is a spiral
“d” on the scale. The machine is started again
spring 318, one end of which seats against the
by pushing in the rod 315 when the machine will
wall 2a and the other end against a collar 319
?xed on the rod. When the rod 315 is pushed 30 be rewinding and the ?lm is rotating the shaft
302 of reel 26a and through the spring belt 322'
inwardly to connect the shafts 206 and 209, such
connection shaft 246 is being driven in a reverse
movement is opposed by spring 318. To hold the
direction by the rewinding action of the ?lm.
rod in its inward operative position, I provide a
A reduction train of gearing is associated with
latching yoke member 320 which is pivoted to the
wall 2a below and adjacent the rod 3I5. An . shaft 245 and comprises a worm 323 ?xed on said
shaft, and a worm wheel 324 having a hub portion
elongated handle 320' is ?xed centrally to the
rotatable freely in the hub portion of a bracket
yoke member and extends forwardly and through
325 mounted on front panel 20, adjacent the shaft
an opening in the front panel 20. The inner end
246. A similar bracket with a ‘similar hub por
of the handle terminates in a lug 320a: which
when the yoke member is swung upwardly as 40 tion internally screw threaded (not shown) is
mounted on the panel at a point on the other side
shown in Fig. 3 engages the outer edge of the
of the center of the panel. A screw threaded rod
collar 319 for latching or holding the rod 315 in
326 is supported in threaded engagement with the
pushed-in position. When the yoke is swung
hubs of said brackets and is disposed trans
downwardly the lug and collar are disengaged
and the spring 318 forces the rod 315 with its 45 versely to the axis of the shaft 246. A rod mem
ber 325' is supported in suitable sockets in
associated parts outwardly to break the connec
brackets 325 and is disposed parallel to the screw
tion between shafts 206 and 209. The yoke mem
ber may be held in latching position by a spring
member 321, one end of which is fastened to a
?xed part of wall 2a and its other end is free
and impinges against one arm of the yoke mem
ber as seen in Fig. 5. The handle 320' permits
ready manual operation of this yoke holding
member.
An important feature of my present invention
is the provision of means whereby a complete
subject may be out or recorded on a plurality of
tracks on a comparatively short length of ?lm
rather than out along the entire length of ?lm
on a single track or on a fewer number of tracks
thereby eliminating the necessity of running or
rewinding the ?lm for its entire length and there
by saving ?lm material. I accordingly provide
mechanism whereby at a predetermined point
along the travel of the ?lm in its recording direc
tion and at a predetermined point along the
travel of the ?lm in its rewinding direction the
?lm driving mechanism is stopped by automati
cally releasing the clutch members for discon
necting the shafts 200 and 209. This automatic
releasing mechanism is operatively connected to
the mechanism for indicating the position of the
stylus longitudinally of the ?lm which will be
threaded rod 326, and is also disposed transversely
of and beneath the elongated handle 320’ of the
latching yoke member 329. Adjustably secured
to the shaft 326 are two camming devices 321,
each of which has an upstanding arm terminating
in a cam faced lug and a lateral forked arm 32?’
adapted to straddle and slidably engage rod mem
ber 325'. The camming devices are positioned on
opposite sides of the handle 320’ with their cani
ming portions in opposed relationship and p051’
ti-oned in alignment with the upper surface of said
handle. When the shaft 302 is rotated in one
direction by the belt 304 for recording purposes,
the shaft 246 is turned by belt 322’ in one direc
tion and this movement of shaft 246 is trans—
mitted through the reduction gearing to screw
threaded shaft 326 which, through its threaded
connection, moves bodily longitudinally in one
direction under the handle 320' carrying the cam
ming devices along with it, With the result that
the camming device moving toward the handle
will engage the upper surface of the handle and
by a camming action force the handle down
wardly to disengage its holding lug from the col
lar 319 at which time the spring 318 urges the rod
315 outwardly to break the clutch connection be
tween shaft 206 and 209 as will be understood.
presently described. This indicating mechanism
vincludes a, shaft 246 journalled in suitable bear 75 When the shaft .302 is rotated in the opposite
2,408,320
7
8
direction, the other camming device will be moved
intotripping engagement with the latching yoke
that.‘ by only a fraction of a turn of the‘ shaft
222, for example a one-?fth turn, the head mem
handle as will be understood. '
_ .
ber 202 is shifted one line or step transversely of
After the connection between‘ shafts 265 and
the ?lm. The arm 222a is adapted to be held in
299 .are thus automatically broken, the knob 235
operative position with its threads in engagement
is turned again to move the parts to desired po—
with the threads on the shaft 222 or in inopera
sition, such as to the rewinding position, and when
tive position with said threads disengaged by a pin
this is done the rod 3E5 is pushed inwardly again
35! passing through an opening in the arm 222a
in order to connect the shafts 296 and 209 after
and protruding into one of two spaced depressions
which the machine is again ready to carry on its‘ 10 352 formed in the side of the carriage 223. A
rewinding function. This cycle of operations is
spring 353 presses the pin into interlocking posi
continued until the necessary number of tracks
tion. Arm 222a is formed with a ?nger portion
have been out. It will be understood that the
354 to facilitate manipulation of the arm. It will
camming devices 321 are positioned along the rod
be understood that rotation of shaft 222 by means
326 at the proper positions to permit the machine
of the knob 235a, due to the engagement of the
to continue recording and rewinding for the de
threads, will cause the carriage 223 and head 262
sired length of ?lm. By this arrangement only
to move along the shaft to any desired position
a ‘certain predetermined length of film is used
on the ?lm.
‘
for recording the subject .matter and the re
In Fig. 8 is shown means for indicating the
mainder of the ?lm is untouched, resulting in a 20 position of the stylus transversely of the ?lm
great saving of ?hn material.
consisting of a disc member 355 rotatably mount
It, will ‘be understood that the spring belt 322’
ed on a stud projecting from the inner surface of
slightly .stretched when the slide 3893 is shifted
front panel 20. This disc is formed with teeth
upon the rocking of the shaft 225 but this does
on its periphery and the disc is positioned on the
not interfere with its function in driving the
wall so that said teeth are in continuous mesh
counter shaft 246.
with teeth 351 formed on the outer end of shaft
In Fig. 6 is shown a modi?ed form of drive for
222. The disc is marked with‘ numerals or other
the reels 26a and 31a. In'this form, the reels'are 7 suitable indicia adjacent its periphery to corre
alternately driven in the recording and ?lm feed—
spond to the tracks or grooves adapted to be cut
‘ing directions by miter gears 328 ?xed to the reel - on the ?lm. As the shaft 222 is rotated to shift
spindles 392 which are adapted to be riven by
the head 252 from one track to another on the
pinions 329 ?xed on the ends of a sliding and
?lm, such movement is transmitted through the
rotating shaft 330. Shaft see is rotated by a
teeth 35'! to the disc 355 so that .said disc is
belt 33| driven by a pulley 332 ?xed on shaft 268,
rotated a corresponding distance.
'
.
the axes of the shafts being at right angles to
A window 358 is formed in the panel 20 in the
each other the belt is necessarily given a quarter .
turn. Shaft 33%] is supported 'fOr rotation and
endwise movement by hearing straps 334 ?xed on
the wall 20:. The means for moving the shaft
endwise consists of an elongated lever 335 having
one end pivoted to one arm of the bell crank 223'
and having its other end pivoted to a depending
arm 336 pivotally mounted on a stud on the wall
2a, the free end of said depending arm being dis
posed in the periphera1 groove of a grooved collar
33'! ?xed on shaft 339. As will be understood,
path of movement of the numerals whereby they
are exposed to view.
Before starting operations, the positions of the
head-202 and the disc 355 are preset.
Mechanism for vmoving the stylus away from
the track being‘ operated upon and for returning
the stylus and for indicating the particular track
previously operated upon such as shown in my
copending application Serial Number 440,710
may be used in association with the line indicat
ing means just described if desired.
when the lever 3558 is rocked by the ?nger knob
A scale may be proivded on the outsideof the
235, the shaft 339 will be moved endwise to bring
panel 20 in the front of knob 235a with spaced
either of the pinions 329 on its ends into mesh
numerals, for instance, “1” to “5” to indicate
with its adjacent gear 328 on shaft 392 to posi 50 partial
rotations of the shaft 222. ,
tively drive the reel on said shaft.
In Figs. 7 and 8, improved mechanism is shown
for moving the recording and reproducing head
transversely of the path of movement of the film,
and also improved mechanism for indicating the
I claim:
1. In a sound recording and reproducing ma
chine, in combination, a traveling strip of ?lm,
means for moving said ?lm for recording and
reproducing including a drive shaft, a driven
shaft, a roller ?xed on said driven shaft for fric
tionally driving said ?lm, a sound head for re
nalled in suitable bearings in wall 2:: and front
cording and reproducing upon said ?lm, means
panel 20. This shaft is provided with screw
for tensioning said ?lm during its recording and
threads on its exterior for a considerable portion 60 reproducing travel including a disc loosely
of its length. The head member 282 is supported
mounted on said drive shaft, a roller carried by
by a carriage 223 which has a central opening
said disc for engaging and looping said ‘?lm, a
free of screw threads for receiving the shaft 222
gear ?xed to said disc and means for moving said
and for sliding along said shaft. An arm 222a
vtensioning roller away from said ?lm to eliminate
is pivotally mounted on the side of the carriage 65 said loop for rewinding the ?lm including a rock
223 as indicated at 359. This arm 22a has an
able shaft, a gear segment operatively connected
arcuate shaped portion on its outer surface which
to said shaft and in mesh with the gear 011 the
is provided with screw threads and when the arm
disc for moving said disc and tensioning roller
is swung on its pivot toward the shaft 222 said
away from the ?lm and means for rocking said
line on the ?lm on which the stylus is operating.
As shown in Fig. 7, a shaft or spindle 222 is jour
latter screw threads are adapted to engage the 70 shaft.
1
screw threads on the shaft .222.
2. In a sound recording and reproducing ma
The screw threads on shaft 222 are made very
chine, in combination, a traveling strip of ?lm, a
coarse and the screw threads on the arm 222a are
sound head for recording and reproducing upon
cut to correspond and to mesh with the screw
said ?lm, means for moving said ?lm in opposite
threads on said shaft. These threads .are cut so
directions for recording and rewinding including
2,408,320
9
10
a drive shaft, a driven shaft in alignment with
said drive shaft, clutch mechanism for connect
means for actuating said clutch mechanism in
ing said shafts including a clutch member on the
adjacent ends of said shafts, means for actuating
said clutch mechanism including a slidable rod, a
lever having one end connected to said rod and
its other end connected to one of said clutch
members for moving the same into and out of
cluding a slidable rod, a lever having one end
connected to said rod and its other end con
nected to one of said clutch members for mov
ing the same into and out of engagement with
the other clutch member, spring means for mov
ing said clutch member out of engagement with
each other, means for releasably holding said
engagement with the other clutch member,
spring means for moving said clutch members
out of engagement with each other and means
for releasably holding said clutch members in
engagement including a manually swingable
latching yoke member adapted to coact with a
?xed portion of said slidable rod for holding said
rod in operative position.
clutch members in engagement including a man
other end connected to one of said clutch mem
means for moving said clutch members out of
rod against movement, a roller ?xed on said
driven shaft for ifrictionally driving said ?lm, a
sound head for recording and reproducing upon
said ?lm and means associated with said clutch
ually swingable latching yoke member adapted
to coact with a ?xed portion of said slidable
rod for holding said rod in operative position
and means for automatically releasing said latch
ing yoke member to disconnect said clutch mem
bers including movable spaced camming devices
operatively connected to said drive shaft and
3. In a sound recording and reproducing ma
movable in the path of said latching yoke mem
‘her for moving said yoke member out of latch
chine, in combination, a traveling strip of ?lm, a
ing engagement with said slidable rod to dis
sound head for recording and reproducing upon
said ?lm, means for moving said ?lm in oppo 20 connect said shafts.
site directions for recording and rewinding in
6. In a sound recording and reproducing ma
cluding a drive shaft, a driven shaft in align
chine, in combination, a traveling ?lm, means
for moving said ?lm in opposite directions for
ment with said drive shaft, clutch‘ mechanism
for connecting said shafts including a clutch
recording and rewinding including a drive shaft,
member on the adjacent ends of said shafts,
a driven shaft, clutch mechanism for operative
means for actuating said clutch mechanism in
ly connecting said shafts, means for actuating
said clutch mechanism including a slidable rod
cluding a slidable rod, a collar on said rod, a lever
and a latching yoke member for holding said
having one end connected to said rod and its
bers for moving the same into and out of en- .
gagement with the other clutch member, spring
engagement with each other and means for re
actuating mechanism for automatically discon
leasably holding said clutch members in engage
necting said drive and driven shafts at a pre
ment with each other including a manually
determined point along said ?lm during its re
cording travel and at a predetermined point along
said ?lm during its return travel for rewinding
movable spaced camming devices operatively con
nected to said drive shaft and movable into
the path of said latching yoke member for mov
ing said yoke member out of latching engage
ment with said slidable rod to disconnect said
swingable latching yoke member having a lug
adapted to be swung into engagement with the
collar on said rod for holding the rod in operative
position.
4. In a sound recording and reproducing ma
chine, in combination, a traveling strip of ?lm,
a sound head for recording and reproducing upon
said film, means for moving said ?lm in opposite
directions for recording and rewinding including
a drive shaft, a driven shaft in alignment with
said drive shaft, clutch mechanism for connect
ing said shafts including a clutch member on
the adjacent ends of said shafts, means for ac
tuating said clutch mechanism including a slid
able rod, a lever having one end connected to
said rod and its other end connected to one of
said clutch members [for moving the same into
and out of engagement with the other clutch
member, spring means for moving said clutch
members out of engagement with each other and
means for releasably holding said clutch mem
bers in engagement including a manually swing
shafts.
'7. In a sound recording and reproducing ma
chine, in combination, a casing having a front
panel, a traveling ?lm, means for driving said
?lm in opposite directions including a drive shaft,
a driven shaft and a roller ?xed on said driven
shaft for frictionally moving said" ?lm, a mov
able sound unit having a stylus for recording
and reproducing on said ?lm over a plurality of
tracks thereon, means for shifting said sound
unit from track to track transversely of the ?lm
including a rotatable exteriorly screw threaded
-. shaft disposed transversely of said ?lm, gear
teeth formed adjacent one end of said shaft,
means for rotating said shaft, and means for in
able latching yoke member adapted to coact
dicating the position of the stylus transversely
with a ?xed portion of said slidable rod for hold
ing said rod in operative position and means for
spaced numerals marked thereon corresponding
automatically releasing said latching yoke mem
of the ?lm including a rotatable disc having
ber to disconnect said clutch members.
5. In a sound recording and reproducing ma
to the number of tracks upon the ?lm, teeth
formed on the periphery of said disc in continu
ous mesh with the gear teeth on said shaft where
chine, in combination, a traveling strip of ?lm,
by movement of the shaft is imparted to said
a sound head for recording and reproducing upon
said ?lm, means for moving said ?lm in oppo
disc and a window formed in said panel in the
path of movement of the numerals on said disc,
site directions for recording and rewinding in
said disc and shaft ‘being synchronized where
cluding a, drive shaft, a driven shaft in align
by the number of the track uponwhich the stylus
ment with said drive shaft, clutch mechanism
is positioned appears in said window.
for connecting said shafts including a clutch 70
member on the adjacent ends of said shafts,
JACOB M. KUHLIK.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 031 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа