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Патент USA US3087696

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April 30, 1963
3,087,686
J. P. WREN
TAPE RECORDER APPARATUS
Filed June 3, 1960
2 Sheets-Sheet 1'
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April 30, 1963
J. P. WREN
3,087,686
TAPE RECORDER APPARATUS
2 Sheets-Sheet 2
Filed June 3, 1960
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3,087,686
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United States Patent 0 ' ICC
1
Patented Apr. 30, 1963
2
deck in association with tape spool means as set forth
3,087,686
in the preceding paragraph, wherein the plunger and post
John Pelham Wren, Swindon, England, assignor to The
Garrard Engineering and Manufacturing Company
the post is formed with a recess or abutment in or under
TAPE RECORDER APPARATUS
Limited, Swindon, England
Filed June 3, 1960, Ser. No. 33,748
_ Claims priority, application Great Britain July 30, 1959
15 Claims. (Cl. 242-6513)
This invention relates to tape recorder apparatus and
tapespool means for use in association therewith, an aim
of the present invention being to provide an improved
construction of tape recorder deck together with an im
proved construction of tape spool means.
are arranged for rectilinear movement in a direction paral
lel to the surface of the tape deck. In one preferred form
which the end of the plunger is trapped when the brake
release mean-sis actuated.
The invention still further consists in a tape recorder
deck in association with tape spool means, as set forth in
any of the three preceding paragraphs, wherein the tape
spools are ?oatingly mounted within the magazine and
the magazine and the tape spools are so devised, having
regard to the tape spool spindles on the tape deck, that
when the magazine is in situ on the tape deck, the tape
More particularly, the present invention relates to a 15 deck spindles engage the tape spools and drivingly sup
port them clear of contact with the walls of the magazine.
tape recorder deck in association with tape spool means,
Where the tape spools are ?oatingly mounted within the
of the type wherein the tape spool means includes a pair
magazine in this manner, and the magazine and deck are
of tape spools mounted within a ?at container, cassette
provided with a brake plunger and post arranged for
or magazine (hereinafter re?erred to as a magazine), the
magazine being so shaped, and having tape guiding means 20 rectilinear movement in a direction parallel to the surface
of tape deck, as set out in the preceding paragraph, the
‘such, that the tape, in passing from one spool to the other,
tape deck is provided with magazine-locating {guide means
follows a path in which the tape rforms an unobstructed
on the side of the magazine when in situ which is remote
bridge portion spanning a gap between salient portions
from the side on which the brake plunger projects.
of the magazine, which bridge portion, when the maga
The magazine-locating guide means comprise ‘abutment
zine is placed upon the deck with the tape deck spindles
means against which the magazine is thrust under the
engaging the centre holes of the tape spools, is suitably
combined action of the brake-release post and the spring
located within a gate made up of the magnetic head or
loading of the brake plunger so locating the magazine ac
heads and the tape drive means of the deck, the magazine
carrying a dis-placeable brake which acts upon both tape 30 curately in a position where there can be no contact be
tween the inner walls of the magazine and the spools.
spools and which co-operates with brake release means
In order to assist in the location of the spools on the
provided upon the deck for releasing the brake to permit
rotation of the tape spools.
tape deck spindles the latter have tapering end portions
the brake release means on the deck are arranged for
gagement therewith. Thus, for example, the projecting
so that they are “shell-nosed,” projecting means being
The present invention consists in a tape recorder deck
in association with tape spool means, of the type indicated, 35 provided on the spindles adapted to engage with co-op
crating means on the tape spools to effect a driving en
wherein the brake, means on the tape spool means and
means on the tape deck spindles'comprise spring-loaded
interlocking7 engagement, when the brake release means
pins which will automatically locate themselves in the
is actuated, so that the magazine is locked against re
driving slots conventionally provided in the spools as soon
moval from the tape deck.
40
as rotation of the spindles commences, even if the maga_
The invention further consists in a tape recorder deck
zine has been placed on the tape deck so that initially
in association with tape spool means, as set forth in the
‘the slots in the spools are not in register with the pro
preceding paragraph, wherein the displaceable brake on
jecting pins on the tape deck spindles.
the tape spool means includes brake block means‘ carried
It is preferred to form the spools and the magazine
upon a spring loaded plunger which projects ‘from the 45
therefor so as to comprise a reversible unit so that the
tape spool magazine, and the brake release means on the
magazine may be placed upon the tape deck with either
deck includes a post projecting from the surface of the
face downwards, so enabling two recording and replay
tape deck and displaceable in a direction towards and
tracks to be utilized on the tape in known manner.
away from the plunger such that when the magazine is
’
in position on the deck the plunger is displaced by the 50 In the accompanying drawings:
FIGURE 1 is a diagrammatic plan view of a tape re
release means against its spring-loading and releases the
corder deck in association with tape spool means, ac
brake and the plunger and brake release means interlock
cording to the present invention, and
to prevent removal of the magazine from the deck.
FIGURE 2 is a section taken on the line 2—2 of FIG
Preferably, the brake release post is mechanically con
nected to, for example, the “on/off” or other operating 55 URE 1.
In carrying the invention into effect according to one
switch of the tape deck so that when this switch is oper
convenient mode by way of example, a tape recorder deck
ated the post is displaced to release the magazine brake
is indicated generally as 1 and tape spool means, shown
simultaneously locking the magazine in position upon the
in position on the deck, as 2.
tape deck. It is also preferred that the brake block means
The tape spool means includes a pair of tape spools
should comprise a common friction block which is urged 60
under the influence of the spring-loading into a wedging
position between the peripheries of the two tape spools
within the magazine where they are closely adjacent, the
3 which constitute feed and take-up spools in conventional
manner for a reel of magnetic tapes4. The spools are
enclosed within a ?at container or magazine 5 formed by
upper and lower magazine portions held together by
.brake being mounted for limited free lateral movement
between the spools such that when the brake is applied a 65 means of clips '6 to permit the removal of the spools 3
and tape 4 from the magazine if desired.
“self-centering” eifect is alforded which ensures equal
The magazine 5 is formed with salient portions 5a hav
application of the brake to both spools. The limited free
ing tape guides 7 at their extremities, so that the tape 4
lateral movement may be a?orded, for example, by loosely
in passing from one spool 3 to the other follows a path
mounting the plunger in guides, by loosely mounting the
in which the tape 4 forms an unobstructed bridge por
70
brake block on the plunger, or by a combination of both
tion 4a spanning the gap between the salient portions
of these measures.
5a of the magazine.
The invention still further consists in a tape recorder
3,087,686
'
3
When the magazine is placed upon the tape deck, as
shown in FIGURES 1 and 2, with the tape deck spindles
8 engaging the centre holes 9 of the tape spools 3, the
bridge portion 4a is arranged to be located within a
gate made up of a magnetic head housing 10, carrying
an erase head 11 and a record/replay head 12, a pressure
4
about the point of pivotal connection 36 of the brake
release lever 34 to the tape deck plate 22.
Pivoted also to this point 36, and biassed by means of
spring 37 in a clockwise direction, is wind lever 38.
Movement of the wind knob 24 towards the front of
the deck will cause the wind lever 38 to engage an abut
ment 34:: on the brake release lever 34, but ‘by virtue of
the slot 33 in the brake operating link 32, movement of
the erase and record/replay heads respectively, a capstan
the wind knob will not cause movement of the control
drive 16 and a pinch-roller 17 for co-operation with the
or operating levers.
capstan drive 16 ‘for driving the magnetic tape during
Rotation of the brake release lever 34 in an anti-‘clock
record or replay.
wise direction (caused by actuation of either control or
For use, the gate is arranged to be closed onto the
wind knob 23 or 24), causes the movement towards the
bridge portion 4a in the manner to ‘be described more
rear of the deck of the brake arm 40, to which the release
fully hereinafter.
15 lever 34 is pivotally connected at 41, and the post 21 car
The magazine 5 carries a displaceable brake consisting
ried on the arm 40, against the in?uence of spring 37
of a brake block in the form of a common friction block
acting via a switch bell-‘crank 42, one arm 42a of which
18 carried at one end of a plunger 19 which is spring
rests against a ?xed pin 43 on the arm 40. The rearward
loaded by means of spring 20 into a position in which
end of arm 49 is bifurcated as at 40a and guided by a post
the friction block is located in a wedging position be
49 secured to an adjacent component 50 of the deck.
tween the peripheries of the two tape spools 3 within
Arm 42b on the b'ellcrank 42 actuates switch 44 when
the magazine 5. The friction block 18 is loosely mounted
the bellorank 42 is rotated in an anti-clockwise direction
on the plunger 19 which itself is loosely mounted for 1on
‘about pivot 45 by rearward movement of the brake arm
assembly 13, carrying arms 14 and pressure pad 15 for
ensuring intimate contact between the magnetic tape and
gitudinal movement within guides (not shown) on the
40 and its pin 43. Actuation of switch 44 completes elec
structure of the magazine 5 in order that the friction 25 trical circuits (not shown) in known manner to effect the
block 18 may perform limited free lateral movements
desired ‘function of the deck.
between the spools so that when the brake is applied
A switch (not shown) is connected to the control knob
a “self-centering” effect of the block 18 is achieved to
shaft 39 so that when the control knob is actuated, the
ensure equal application of the block to both spools.
desired electrical circuits are completed to the means for
For the purpose of releasing the brake from the tape 30 driving the capstan 16 and tape spools 3 and to the mag
spools in the magazine during, record, replay, or fast
wind operations, the tape deck is provided with brake
netic head or heads.
The post 21 is provided with recess 21a into which ?ts a
tongue 19a formed at the end of the plunger 19 remote
from the friction block 18 when the post 21 is displaced
longitudinally of the plunger 19 when the magazine is 35 to release the brake.
in position on the deck.
In this way during operation of the deck, the tongue
A control knob 23 and a wind knob 24 are provided
v19a is trapped in the recess and the magazine 5 is locked
on the tape deck for enabling the following operations
against removal from the deck.
to be carried out.
The tape spools 3 are ?oatingly mounted within the
40
Control knob 23, shown in FIGURE 1 in the off po
magazine 5 being maintained approximately in position
sition, may be moved towards the left for playing the
by the general shape of the magazine, but no ?xed axes
magnetic tape within the magazine or towards the right
are provided for the spools. The magazine and tape
for the purpose of imposing a recording upon the mag
spools are so devised, having regard to the tape spool
netic tape.
spindles 8 on the deck, that when the magazine 5 is in
45
In either case control cam 25 on the control knob
situ on the deck, the tape deck spindles engage the tape
shaft 39 is rotated to cause ?rstly the control arm 26
spools and drivingly support them clear of contact with
the walls of the magazine.
and the operating arm 27 to pivot anti-clockwise together
against the tension of spring 29 about the pivotal point
In order to assist in the location of the spools on the
of connection 28 of the operating arm 27 to the tape deck
tape deck spindles 3, the latter have tapering end portions
50
plate 22.
so that they are “shell-nosed.” Projecting means in the
In this way the pressure assembly ‘13 and the pinch
rform of spring loaded pins 46 are provided on the spindles
roller 17 carried on the operating arm 27 are brought
8 and are adapted ‘to engage in one of the three notches
against the bridge portion 4a of the magnetic tape urging
47 conventionally formed around the centre holes 9 of
it against the magnetic heads 11 and 12 and the 55 the tape spools 3, to etfect a driving engagement there
capstan 16.
with. As soon as rotation of the spindles 8 commences,
release means consisting of a post 21 projecting from
the tape deck plate 22 and displaceable in a direction
Further rotation of cam 25 causes the control arm 26
the pins 46 will automatically locate themselves in the
to pivot anti-clockwise about its point of pivotal con
notches 47, even if the magazine has been placed on the
tape deck so that initially the notches in the spools are
nection 30 to the operating arm 27, increasing the com
pression of spring 30a and applying pressure via the pres 60 not in register with the projecting pins on the tape deck
spindles.
sure assembly 13 and the pinch roller 17 to the magnetic
The magazine is formed as a reversible unit so that
tape against the heads 11 and 12 and the capstan '16.
it may be placed upon the tape deck with either side
An adjustable stop 31 is provided for adjusting the rela
downwards, so enabling two recording and replay tracks
tive positions of the operating and control levers in the
unoperated position.
Furthermore, the anticlockwise rotation of the control
65 to be utilized upon the one tape in known manner.
In order to prevent displacement of the magazine on
the tape deck relative to the tape spools therein when
lever 26, caused by rotation of the control cam 25 in
the brake release means is actuated to engage the plunger
either direction, also causes the brake operating link 32
of the displaceable brake, the tape deck plate 22 is pro
to be pulled towards the front of the deck by means
vided with magazine-locating guide means in the form of
70
of a pivot pin 33 on the control lever 26 and located in
abutments 48 on the side of the magazine when in situ
a slot 33a in the operating link 32.
which is remote from the side on which the brake plunger
Forward movement of the link 32 causes rotation of
19 projects.
the brake release lever 34, to which the link 32 is piv
When the brake release means is actuated, the magazine
otally connected at 35, in an anti-clockwise direction 75 is thrust ‘against the abutments 48 under the combined
3,087,686
5
6
position to ‘lock said magazine to said deck; said tape re
corder deck including a pair of spaced spindles arranged
of the brake plunger 19 so locating the magazine accu
to engage within said spools; said spools being ?oatingly
rately in a position where there can be no contact between
mounted in compartments formed in said magazine, each
the inner walls of the magazine 5 and the spools 3.
of said compartments including circular peripheral wall
Various modifications may ‘be made within the scope
portions concentric with each other and having a radius
of the present invention.
or curvature in excess of that of the peripheries of said
I claim:
spools; said spindles, when engaged with said spools, driv
1_, In combination, a recording tape magazine; a pair
ingly supporting the latter with clearance with respect to
of spaced spool-s in said magazine for transfer of tape
said circular wall portions.
10
therebetween; brake means movably mounted in said mag
7. The combination claimed in claim 6, in which said
azine; means biasing said brake means to arrestingly en
action of the brake-release post 21 and the spring-loading
gage both of said spools; a tape recorder deck arranged
for cooperative mounting or" said magazine thereon; brake
brake means includes brake block means mounted‘ upon
a plunger having an operating end projecting from the
magazine; said biasing means comprising a spring loading
release means on said deck selectively operable to a brake
release position to move said brake means to release said 15 said plunger; said brake release means including a post
projecting from the surface of the tape deck and displace
spools; manual actuating means on said deck connected
able toward and away from said plunger; magazine locat
to said brake release means and selectively actuable to
ing guide means on said tape deck toward the side ‘of the
operate said brake release means to the brake release
magazine remote from that fromv which the operating end
position; and cooperating means on said brake release
of
said plunger projects; said guide means being so posi
20
means and said brake means interen-gaged in said brake
tioned that, when said magazine is biased against said
guide means under the combined action of said post and
the spring loading of the brake plunger, said spindles are
brake means includes a brake block means and a plunger
concentric with said circular peripheral wall portions so
mounting said brake block means and having an operat
ing end projecting from said magazine; said biasing means 25 that there is radial clearance between the peripheries of
said spools and said circular wall portions.
including a spring loading said plunger to engage said
8. In combination, a recording tape magazine; a pair
brake block means with both of said spools; said brake
of spaced spools in said magazine for transfer of tape
release means comprising a post projecting from the upper
therebetween; brake means movably mounted in said
surface of said deck and displaceable toward and away
magazine; means biasing said brake means to arrestingly
‘from the operating end of said plunger; said cooperating
engage both of said spools; a tape recorder deck arranged
means being formed on the operating end of said plunger
release position to lock said magazine to said deck.
2. The combination claimed in claim 1, in which said
and on said post.
for cooperative mounting of said magazine thereon; brake
release means on said deck selectively operable to a brake
3. The combination claimed in claim 2 in which said
release position to move said brake means to release said
plunger and said post are arranged for rectilinear move
ment in a direction parallel to the surface of said deck. 35 spools; and cooperating means on said brake release
means and said brake means interengaged in said brake
4. In combination, a recording tape magazine; a pair
release position to lock said magazine to said deck; said
of spaced spools in said magazine for transfer of tape
brake means including a brake block means and a plunger
therebetween; brake means movably mounted in said
mounting said brake block means and having an operat
magazine; means ‘biasing said brake means to arrestingly
ing end projecting from said magazine; said biasing means
engage both of said spools; a tape recorder deck arranged
including a spring loading said plunger to engage said
for cooperative mounting of said magazine thereon; brake
brake block means with both of said spools; said brake
release means on said deck selectively operable to a
release means comprising a post projecting from the upper
brake release position to move said brake means to re
surface of said deck and displaceable toward ‘and away
lease said spools; and cooperating means on said brake
release means and said brake means interengaged in said 45 from the operating end of said plunger; said cooperating
means being formed on the operating end of said plunger
brake release position to lock said magazine to said deck;
and on said post; an operating switch on said deck; and
said ‘brake means including a brake block means and a
means mechanically connecting said post with said operat
plunger mounting said brake block means and having an
ing switch to operate the latter upon movement of said
operating end projecting from said magazine; said biasing
post to the brake release position.
50
means including a spring loading said plunger to engage
9. In combination, a recording tape magazine, a pair
said brake block means with both of said spools; said
of spaced spools in said magazine for transfer of tape
brake release means comprising a post projecting from
thenebetween; brake means movably mounted in said mag
the upper surface of said deck and displacea'ble toward
azine; means biasing said brake means to arrestingly en
and away from the operating and of said plunger; said
cooperating means being formed on the operating end of 55 gage both of said spools; a tape recorder deck arranged
for cooperative mounting of said magazine thereon; brake
said plunger and on said post, and including an abutment
release means on said deck selectively operable to a brake
projecting from the outer end of said post toward the op
release position to move said brake means to release said
erating end of said plunger, and engageable vover the op
spools; and cooperating means on said brake release
erating end of said plunger in said brake release position.
means and said brake means interengaged in said brake
60
5. The combination claimed in claim 2, in which said
release position to lock said magazine to said deck; said
cooperating means includes an abutment projecting from
brake ‘means comprising a wedge shape brake block, of
the outer end of said post toward the operating end of
friction material, biased into a wedging position between
said plunger, and engageable over the operating end of
the peripheries of the two spools at a location where these
said plunger in said brake release position.
peripheries are closely adjacent to each other.
6. In combination, a recording tape magazine, a pair
10. The combination claimed in claim 9, wherein said
of spaced spool-s in said magazine for transfer of tape
wedge shape brake block is mounted for free lateral
therebetween; brake means movably mounted in said
movement between the spools for self-centering engage
magazine; means biasing said brake means to arrestingly
ment with both spools.
11. The combination claimed in claim 10, wherein said
engage both of said spools; a tape recorder deck arranged 70
wedge shape brake block is mounted on a plunger and
for cooperative mounting of said magazine thereon; brake
said plunger is mounted for play with respect to said mag
release means on said deck selectively operable to a brake
azine to provide such free lateral movement.
release position to move said ébrake means to release said
12. The combination claimed in claim 10, including a
spools; and cooperating means on said brake release means
and said brake means interengaged in said brake release 75 mounting plunger for said wedge shape brake block; said
3,087,686
brake block being loosely mounted on said plunger to
provide such ‘free lateral movement.
13. The combination claimed in claim 6, in which said
spindles have ‘tapering end portions engageable in said
spools.
14. The combination claimed in claim 6, said' spools
being formed with central circular apertures to receive
said spindles and with ‘angularly spaced radial slots ex
tending from said apertures; and spring loaded pins on
the outer ends of ‘said spindles for engaging in said slots 10
for driving of said spools.
15. The combination claimed in claim 1, in which said
magazine includes a pair of parallel walls vbetween which
8
said spools are disposed; said magazine ‘being arranged as
a reversible unit with either of said walls in engagement
with the surface of said tape recorder deck.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,584,733
Owens ______________ __ Feb. 5, 1952
2,804,508
M-astling et al. _______ __ Aug. 27, 1957
2,894,700
2,914,620
Roberts et al. ________ _.. July 14, 1959
Dale ________________ __ Nov. 24, 1959
2,919,866
2,989,261
Minott ______________ __ Jan. 5, 1960
Gillette et a1 __________ __ June 20, 1961
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