close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3028123

код для вставки
April 3, 1962
H. GERBER
3,028,113
REEL INSERTS
Filed Deo. l. 1959
3 Sheets-Sheet 1
1
22
77
„7015
INVENTOR.
61E/9519€
April 3, 1962
H. GERBER
3,028,113
REEL INsERTs
Filed DeC. l, 1959
3 Sheets-Sheet 2
JNVENTOIL
/VOWA/Pß
G5955?
April 3, 1962
H. GERBER
3,028,1 13
REEL INSERTS
Filed D80. l. 1959
3 Sheets-Sheet 3
A Tron/5;(
iQ@
3,028,113
Fatented Apr. 3, 1962
2
is a side elevation ofthe upper `or delivery' reel, includ
3,028,113
ing the apparatus of FIGS. 4 and' 5, taken ¿at VI-VI of
Howard Gerber, Chester, Pa., assignor to
FIG. l to show the side concealed in FIG. 2; FIGS.
REEL INSERTS
6a` and 6b are transverse~ sections of portions of the same
apparatus, taken at Vla-Vla and VIb--VIb of FIG'. 6'.
FIG. 7 is `a front elevation of the adapter or' insert' for
Morris Martel, Havertown, Pa.
Filed Dec. 1, 1959, Ser. No. 856,559
2 Claims. (Cl. ZAM-74.1)
the bottom reel (suggested here in phantom) conforming
to the apparatus of the general views; FIG. 8 is `a side
This invention relates to winding of web material, such
`as ñlm, tape, or the like, concerning especially repeated
elevation of the same apparatus partly cut away, taken
unidirectional winding thereof without necessity of re 10 at VIII-VIII of FIG. 1 to show the' side concealed in
FIG. 2; FIG. 9 is a side elevation of theladapter of FIG.
winding, together with means for accomplishing that'pur
8, removed from the reel; FIG. 10 is an enlarged ltrans
pose.
It is customary in showing motion pictures, for exam
verseA section of the same taken at X--X of FIG; 9; vand
ple, to unwind ñlm from a reel upon` which it is stored
FIG. l'l is a medial section thereof, taken at XI--XI of
in spiral configuration, pass the ñlm past the lens system 15 FIG. 10.
In general, the objects ofV the present invention are
of a projector, and then wind the film temporarily onto
another reel ,from which it must be back-Wound to bring
accomplished ina substantially cylindrical' windup or
the leading edge of the film to the outside of the spiral
configuration. Such back-winding is normally a pre
requisite to subsequent unwinding in the proper direction
for- showing the movie again. A similar back-winding
problem occurs. with single-track magnetic tape, for ex
receiving insert for an open-center reel having side
ñanges, by means of an arm retained movably thereon
between two extreme positions, the arm being adapted in
one extreme position/ro» protrude between' the‘ side ñanges
and help support web material wound on the reel and
adapted' simultaneously to retainA the inner' end of the
web material fixed with respect to the~v insert within the
ample, upon which impulses corresponding to music, pic
tures, or other intelligence` have been stored, and the
same` is true of any funicular articlehaving characteris 25 center of` the reel, the arm when' in that one extreme
tics such thatit is desirablyy runV or scanned unidirection
position preventing removal of the insert` from the reel,
ally. For simplicity, al-l articles adapted to such an
operation are denoted generally herein by the term “web”
whether in the `form of iilm, ribbon, tape, wire, or other
funicular shape, and the term “hlm” is employed as a 30
the armv being withdrawn from between the side ilanges
in the secondy extreme position> and adapted to slacken
the web on the reel 4and to release the inner end of the
more- speciñc example.
web withy respect to the insert, the insert being removable
from the reel- only with the armwithdrawn in the> second
position. The inventionv includes detent means carried
by the insert’ in contact with the arm and adapted to
While means andmethods ‘are knownior withdrawing
a `spirally wound web from the center of the spiral con
hold the arm at eachof the two extreme positions in the
íiguration, rather than in the customary manner from
the outside thereof, the various devices for that purpose 35 absence of external pressure upon the arm effective to
move ity -frorn one position to the other. Afcooperating
have not achieved significant commercial acceptance,
delivery insert for use in such a reel when. unwindinlg is
especially in the instance of motion-picture projection.
also describedherein.
This is attributable at least in part to complexity in
designl and dit‘ñculty or uncertainty in operation of such
FIG. l1 shows` from the front, and FIG. 2 from the right
devices, leading to malfunctioning, maintenance prob 40 side, motion-picture projector 11 comprising generally
housing l2 on base 13> and having lens system 15 located
lems, and increased costs-al1 in spite of the obvious
desirability of eliminating the annoying and time
midway of the housing, with flange 16 at one side thereof.
Carried on the ñange are upper projector arm or reel
consuming back-winding operation, which itself is often
deleterious to the film because. of the increased speed
usually employed and the4 accompanying abrasion, snag
ging, and whipping of the ñlm.
A primary object yof the present invention is an im
provement in a procedure for unwinding a-spirally wound
web from the spiral configuration thereof and rewinding
support 21 and lower reel support 22. Spindle` 25 is
mounted at the front on the upper support, while spindle
26 is mounted at the front on the `lower support, both
spindles extending horizontally to the right side of the
rojector (i`.e., to the left in FIG. 1). The flange also
carries top landbottoxn drive sprockets 28~ and 29, respec
tively, each ñanked by plurality of idler pulleys 40, and
each driven by mechanism llocated inside the body of the
projector as is wholly conventional (and, therefore, not
it into like spiral configuration without end-for-end re 50
versal of the web. An object is enhanced procedural
convenience in converting. a. reel upon which film is
shown or described further here) .
wound inY spiral configuration from a film-receiving con
Upper or top reel 31 is visible above and ahead of the
dition toa condition whereinV the ñlm is adapted to un
wind from the center thereof. A further object is pro 55 lens, while lower or bottom reel 32 is located below and
similarly. ahead of the lens, each reel being located co
vision of reelsv with inserts adapted to facilitate perform
axial with» its respective spindle. Film 1 is shown un
ance ot such a procedure. A particular object is
winding. in. the direction of the arrow fromthe top reel
production of improved means for retaining the end> of
and winding onto the bottom reel. Each reel has asso
a web beingwound‘onto a receiving reel. Other objects
of this invention, together with means and methods for 60 ciated with it an adapter or insert centered within and
supporting it on the spindle, top andbottom adapters or
attaining thevarious objects, will. be apparent from the
following description and the accompanying drawings.
FIG. 1 is a> front elevation of a motion-picture pro
jector equipped with reels and associated apparatus ac
cording to the present invention; FIG. 2 is -a side eleva
tion of the apparatus of FIGÃ 1; FIG. 3 is a side elevation,
partly broken away and partly in section, of a portion
of the apparatus of the preceding general views. FIG.
4 is a front elevation of the adapter or insert for the
upper orV delivery reel (suggested here-in phantom) con
forming to the apparatus of the general> views; FIG. 5
is a rear eleveation> of the apparatus ofy FIG. 4; FIG. 6
inserts 41 and 42, respectively, carrying the respective
reels. The‘reels themselves are identical, and’each'has an
open center to receive the adapter or insert. Details of
65 the reel construction are visible in the next View.
FIG. 3 shows, in elevation (partly cut away and’ in se‘c
tion), reel 30 useful according to the present invention,
corresponding to both the top and bottom reels (pre
viously designated specifñcally as 31 and 32.) of the pre'
0 ceding views. TheV section is taken midway of'pair of
flat annular flanges. ."aila,.30bl (only part of each one" being
visible in this view), each quadrant of which isv skeleton
3,028,113
3
edge, as is customary to save weight and material and to
reveal the amount of iilm wound thereon. Semicircular
indentation 33 appears in the inner edge of ñange 31H7.
Pins 8 are spaced uniformly at an acute angle from one
4
at the lower right onto the pathway in the peripheral sur
face of the insert, as previously suggested. Boss 53 on
ñange 51 of the insert is engaged in the corresponding
indentation in tiange Sib of the reel. Shown threaded
ized between the circular periphery and concentric inner
Crt
another about the inner edge portion of the llanges, ex
cept for omission of any such pin at the rightmost of such
equally spaced locations (below the indentation), with
their ends swaged or otherwise rigidly interconnected
thereto. Each pin has roller 18 rotatively carried on it
between the flanges, the roller being slightly shorter than
the transverse spacing of the iianges. It will be apparent
that together the rollers constitute an inner support for
iilrn wound onto the reel, serving the purpose of a more
conventional hub and also permitting the lilm to be With
drawn into open center 10 of the reel and then trans
versely out therefrom by means of the adapter or insert
into the side of the insert so as to intersect the portion
of the bracket recessed into the peripheral surface is set
screw 54, which holds the bracket in place.
FIG. 6b is a transverse section taken through the loca
tion of one ball detent 52 as indicated in FIG. 6i.
Gen
erally cylindrical recess 62 receives compression spring
63 at the inner end, and ball detent 52‘ at the surface.
The detent has a hernispherical surface protruding beyond
the peripheral surface of the insert (4l) and a flat cylin
drical base resting against the spring. The width or
diameter of the base is greater than that of the opening
`formed in annular surface layer or collar 64 of the in
sert surrounding the ball portion so as to retain the detent
in place against the compression of the spring. Such
shown in previous views and revealed in greater detail in
collar configuration may be provided by leaving an ex
the next several views. According to this invention the
film is supported at the location from which the pin (and 20 cess of insert material in the vicinity of the recess (formed
by drilling, for example), inserting the spring and the
roller) are omitted, as set forth below in the description
detent and holding them Well toward the inner end of the
of the lower or receiving adapter or insert.
FIGS. 4 and 5 show upper or delivery adapter or in
sert 41 from the front (i.e., viewed in the same direction
as in FIG. l) and rear, respectively, but with the film
removed and with the reel, spindle, and spindle-supporting
arm fragmentarily indicated in phantom. The shape of
the adapter or insert is generally cylindrical. It is bored
recess, then swaging or upsetting the material to cover
the base of the detent with collar-like layer 64 so formed,
and leaving a smaller opening for the ball to emerge
through; alternatively, a separate collar piece can be
pressed or threaded into the bore after insertion of the
spring and the ball detent. Ii desired, the recess can be
bored iirst to the diameter of the ball and then counter
not only to receive the spindle but also bored and threaded
parallel and perpendicular thereto to receive two screws, 30 bored (to a suitably larger diameter) from the opposite
side of the insert, Where it will be plugged after insertion
as shown. Thumb screw 43 threads transversely (per
of the detent followed by the spring. When the insert
pendicular to the axial bore) downward into the insert
is in place in the reel, as shown in FIG. 6b, the ball detent
near its edge next to the spindle-supporting arm of the
grips the inside edge of ñange 3‘1b. Subsequent views
projector and into contact with the spindle, while thumb
screw 45 threads longitudinally (parallel to the axial bore) 35 show the receiving adapter or insert and its identical reel.
FIGS. 7 and 8 show, from the front and the same side
through the insert and into contact with the projector arm.
as in FIG. 2, receiw'ng or lower adapter or insert 42.
Helical pathway or track 48, with central groove-like
Supporting spindle 26 has protrusion 65 registering in
recess 49, winds its way around the peripheral surface,
one of three equidistant slots 66 in axial bore 68 of the
beginning at the lower right in FIG. 5 and ending at the
lower right in FIG. 4 (as suggested by the phantom repre 40 insert. The reel is superimposed fragmentarily in phan
tom in FIG. 7, showing the position of one of ball detents
sentation of film and the accompanying arrow). It will
S2 against the inside edge of the reel ñange contacted
be apparent that in the vicinity of the pathway the pe
on the opposite side by ñange 71 of the insert; in FIG. 8
that first detent is concealed (indicated in broken lines)
behind near ñange 31a of the reel, which is partly cut
as an arcuate slot in FIG. 2; this facilitates escape of the
45 away to reveal diametrically opposed detent 52 against
ñlrn from the reel into the pathway.
far flange Sib. Flange 71 of the insert rests against the
Readily visible in FIG. 4 but nearly hidden in FIG. 5
outer face of the mentioned iiange of the reel and carries
is L-shaped bracket 44, which rises from the peripheral
sernicyiindrical boss 72, which tits into the semicircular
surface of the insert near the edge next to the projector
indentation provided for such purpose, as previously
arm, and extends at a right angle thereto into contact
50
with the nearer ñange of the reel and partly bridging the
shown.
The generally cylindrical body of this adapter or in
helical pathway. Flange 51 carrying semicylindrical boss
sert for the lower or receiving reel lacks a segmental por
-53 (which tits into the semicircular indentation of a reel
tion, leaving space 74 within the inner edge of the insert
ñange, shown in FIG. 3) is Visible in FIG. 5 along the
iiange; the body has main portion 60 and hook-shaped
left side of the reel next to the projector arm; only a
portion of the flange is visible in FIG. 4, but FIG. 4 55 portion 67 outlining adjacent hollow 75. Arm 73` is
partially visible in each of these later views, the middle
shows protruding ball detent 52, which rests against the
portion of the arm being retained slidably in slot 78
inner edge of the reel ñange contacted on its opposite or
undercut in the face of main body portion 60 of the
outer surface by the ñange of the insert.
insert, as shown more clearly in FIGS. l0 and 1l.
FIG. 6 and detailed sectional views 6a and 6b reveal
60
Rounded free end 76 of the arm protrudes beyond the
further details of the construction of delivery adapter 41,
edge of ñange 71, while the opposite end terminates in
together with the reel into which it tits and the supporting
leaf spring 77. The spring, which is located in hollow
spindle. Spindle 25 has customary protrusion 55, which
75, is shown pressing the visible end of íilm 1 against
tits into one of three equidistant slots 56 in axial bore 58
the inner surface of hook-shaped portion `67 of the insert
of the insert, as shown in FIG. 6. Film l unwinding
from the reel in the direction indicated by the arrow is 65 body. The ñlm continues upward and to the left in FIG.
7 about rounded end ’76 of the arm, which in the illus
shown in broken lines at the early part of its path, he
trated extended portion of the arm lies on the circle
tween right lower roller 1S (also shown in broken lines)
formed by the indicated seven supporting rollers (spaced
and the recessed pathway about the insert, and subse
at 45° intervals about the reel flanges), and then counter
quently as a solid line. FIG. 6a shows a medial trans
70
verse section of the insert and the closely associated parts
clockwise to form successive layers in spiral configura
ripheral surface of the insert is nearer the axis (i.e., re
duced in radius) slightly, as indicated at 3S, which appears
of the reel, taken from upper left to lower right as indi
cated in FIG. 6. Two rollers are visible within the plane
_of the section, with a multiplicity ot layers of surround
Ving unwinding íilm also indicated. Film 1, with one of
tion on the supports.
The arm is retained in the extended position shown in
FIGS. 7 and 8 by protrusion of ball detent 87 through
aperture 89 in the intermediate portion of the arm. The
sprocket holes 61, is visible passing from behind the roller 75
3,028,113»
6
detent„ together with biasing spring 8’6, is located in
transverse bore> 85 in. the main body portion of vthe> in
sert, the bore having. plug, 84" filling its opposite end;
Al'so present in the arm, between aperture 89'an'd rounded
into `the open center ofthe reel~`y where it already is‘ found
if, the film has 4been woundv onto-thegreel with the aidf of
the receiving adapter or insert just' mentioned. In fitting
the delivery insert to thesreel, the' operator holds the end>
end 76.is similar aperture 88"„ through which the ball" 5.-, of the film at the desiredx side' (next tothe projector'ar-m,
detent protrudes when the arrrr isA
the oppositel or re‘
asîill'ustratedì and then> slips theA delivery insert into the
tracted position, as; shown in_EIG. 9L Handle- 9;(Iìthereof
reel from that side; at the same“ time laying'the' filrniintoY
the helicalî pathway or` track. Ofy course, the semicylin
protrudes sidewise:from-.fthearma(iseeFIG,A 7) and beyond
the side of ther insert so that the handle can be manip
ulated readily to nrove` the arm- to and; from>- the* ex
tended: and“ retracted'4 positions:
Thereceivingadapter‘orinsertris'shown in FIG’; 9‘f'ree
of therreel> and‘iilm; With- the arm in the illustrated` re
tracted‘l position, the rounded ('shown' as senricylind'rical)
dricalîbossv on> the“ insert flange- must coincide with the
10 semici'rcul'ar' indentation in the'reelifiange‘. The adapterl
or insert, with the ree‘lf in= place on‘it; isV then slid onto-the
upper‘spi’ndle'of" the projector and: is retained‘i'n place by
threadingfoneI thumb' screwf against- the spindle (fwhich1
keeps» thereel‘ from slidingl oíì’th‘e spindle) and* threading
free end restsy in notch` or' indentationVA 80 in the> main 15 the other thumb screw against the projector armi (which.
body portion of the insert, with the flat lower surface of
the end against the notched body, and the spring on the
opposite end of the arm is located deep in the hollow
formed between the body and the hook-shaped portion.
prevents the reelfrom turning on the spindle). The end
of the film is then led in the usual order through the pro
jector and is secured into the receiving insert in the lower
reel as previously described.
As previously indicated, FIG. 10 is a section taken 20
In operation the transporting mechanism draws the
through the adapter along the last mentioned transverse
inner layer of film from about the group of rollers in the
bore, showing additional details of the means for` retaining
top reel, and as the film follows the helical pathway it
the arm in position, and FIG. l1 is a section taken per
moves axially or transversely of the reel and the insert
pendicular thereto and illustrating further the various
until it is outside the reel, whereupon it is free to pass
previously mentioned features. FIG. 11 lshows in broken 25 through the projector and wind onto the lower reel as be
lines the extended position of the arm, solid lines showing
fore. The trailing end of the film being wound off the
the arm in the retracted position.
delivery reel may be retained in place during its revolu
The apparatus of this invention requires no special
tion about the reel (which remains stationary) by means
material or methods of production. The reels may be
of an elastic band or the like placed entirely about the
made conveniently of aluminum, steel, or other metals or 30 reel between the ñanges to contact the outer layer, or the
of plastic or the like, and the adapter or inserts may be
end may be provided with a pressure-sensitive adhesive or
similarly composed. The reel flanges may be stamped
other suitable means to retain it to the underlying film
out, forming apertures to receive the pins upon which
layer.
the rollers are carried, and the pins with the rollers on
The advantage of not having to back-wind the film or
them may be assembled to the ñanges and retained in 35 other web material between runs has been mentioned and
place by swaging the pin ends protruding through the
will be apparent. The reels accommodate either delivery
apertures. The adapters or inserts may be formed by
or receiving adapters or inserts, as indicated, and also will
casting or molding, with boring and threading or other
accommodate a plain cylindrical insert (bored to receive
machining as indicated.
the conventional spindle) if it is desired to use the reels in
Operation of this apparatus is readily understood. 40 the conventional manner, i.e., with the leading edge of
Film or other web material may be wound onto the illus
the wound film at the outside on the receiving reel.
trated lower reel fitted with the receiving insert of this in
Minor modifications may be made in the means for
vention, being unwound from the illustrated reel fitted
orienting and retaining the adapters or inserts in the reels,
with a delivery insert as described or may be unwound
or for retaining the end of the film on the receiving
from any other suitable reel or unwinding device. The
adapter or insert, without involving a departure from the
end of the film to be delivered is strung through the driv 45 claimed inventive concept. The inserts are readily fitted
ing sprockets and past the lens system in the usual man
within and removed from the reels without disturbing the
ner and then is passed between the ñanges of the lower
web material wound thereon, thereby greatly expediting
reel, after the insert has been snapped into place into the
the winding procedure.
open center thereof with the semi-cylindrical boss engag
The use of an additional support in the receiving insert,
50
ing the semicircular indentation in the reel flange. Care
is taken to ensure that the laterally protruding handle of
the retaining arm carrying the retaining leaf spring eX
tends to the right of the projector, and that the arm is in
the retracted position (in which it normally will be after
the insert has just been placed within the empty reel).
Then the film end is passed over the roller just before
provided by the reciprocable arm thereof, holds the film
tauter during winding than the smaller number of supports
present during the unwinding, thereby facilitating the un
winding of the first few inner layers without requiring
the free end of the arm, then over the arm, and is in
at an acute angle of arc from one another while each of
any adjustment of the reel or its supporting rollers. Ad
jacent rollers in the reels are spaced along the circumfer
ence of the circle in which the rollers are arranged,
serted between the spring and the hook-shaped surface of
the insert and optionally into the hollow beyond. The
the rollers in the pair flanking the location of the end of
60 the supporting arm (when in the extended position) of
handle is manipulated to move the arm into the opposite
the insert is spaced similarly from it; wider spacing would
or extended position (i.e., with the web-supporting arm
be conducive to excessive slackening that might interfere
on the circle of supporting rollers), whereupon the film
with insertion of `the delivery adapter in the reel. Only
end is retained in place by the spring. The reel may be
one movement, reciprocation of the arm, is used to slacken
given one or more turns if desired to cover the set of sup
the wound layers and free the secured end of film or other
porting rollers with a layer or two of the tilrn. Actuation
of the drive mechanism for the projector will advance
the film in the usual manner and will cause the lower reel
to rotate to wind it up. After completion of the winding,
and advantages, with or without modiñcations in the appa
ratus so used, will become apparent to those undertaking
web from the receiving adapter or insert. Other benefits
to practice this invention.
such receiving adapter may be removed merely by re 70
The claimed invention:
t. In a substantially cylindrical insert for an open
tracting the arm, which releases the retained end of film
while also slackening the inner wound layers, and then
center reel having side ñanges, the improvement compris
by snapping the adapter out.
ing an arm retained movably thereon between two ex
When the described delivery insert is employed, the
treme positions, the arm being adapted in one extreme>
inner end of the film is placed about one of the rollers and 75 position to protrude between the side flanges and help sup
3,028,113
port web material wound on the reel and adapted simul~
taneously to retain the inner end of the web material fixed
with respect to the insert within the center of the reel,
the arm= when in that one extreme position preventing
removal of the insert from the reel, the arm being with
8
2. The apparatus of claim 1 wherein the detent means
comprises a spring-biased ball detent protruding out
ward through a face of the insert, the arm being retained
movably along that face and having a pair of indenta
tions therein, each indentation being adapted to receive
drawn from between the side flanges in the second ex
the ball detent at one of the extreme positions of the arm.
treme position and adapted to slacken the web material
References Cited in the tile of this patent
UNITED STATES PATENTS
on the reel and to release the inner end of the web ma
terial with respect to the insert, the insert being remov~
able from the reel only with the arm withdrawn in the 10
second extreme position, and detent means carried by
the insert in contact with the arm and adapted to hold
the arm at each of the two extreme positions in the ab
sence of external pressure upon the arm eiîective to move
it from- one position to the other.
1,117,956
2,540,897
2,614,761
2,628,789
2,643,118
Jeffries _____________ _.- Nov. 17,
Lindeman _____________ __ Feb. 6,
Camras _____________ __ Oct. 21,
Maxwell _____________ __ Feb. 17,
Burson _____________ _.. June 23,
1914
1951
1952
>1953
1953
2,880,661
Kaden et al. __________ __ Apr. 7, 1959
Документ
Категория
Без категории
Просмотров
0
Размер файла
755 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа