US1874953A - Reeling device for motion picture films - Google Patents

Description

Aug. 30, 1932. E. n FRANZEN ET AL- REELING DEVICE FOR MOTION PLCTURE nuns Filed Dec. 16, 1930 ur L .Y 0 MI E 1 T N r n A v.. m W W m N F m N M Q Q N p N m mw t \N w R w Rm. WW. .4 MN Hun n| 7 mm m n k Patented Aug. 30, 1932 UNITED .STATEES -PA'TENT OFFICE;

.T. FRANZEN, or viimrnnwoon rownsmr, n ssnx COUNTY, AND ARTHUR J. wnrs s,

srenonsmo FRANKLIN wrtnraivrs, inc; 0F

or wnsr 'oRaNsE, Ew JERSEY,

QRANGE, nnwannsny, A conronarro'n' on NEW JERSEY REELINGY nnvron ronrrorron rIcTURn- FILMS Application filed meatba ls, 1930. Seria1,No.- 502,705.

This invention relates .to reeling devices for motion picture films, and moreiparticw ularly to means forcon-trolling the speed :of.

such devices. f l. I

it is necessary frequently, to unwind mos:

tion picture film from onereel and rewind.

it on another reel. Often,- during the 'wind ingoperation, the film is inspected for breaks,

tears, etc., and it is desirable that means be i provided to instantly stop the winding upon discovering a defect in the film. Films are usually inspected by automatic devices and by manual means. I )1,- J

Inspecting machines now in common'use are operated at a constant speed, withthe result that many times upon the detection of a tear or break, the portion of the film under consideration has been already wound upon a reel and it is necessary to unwind the film back to the break, which process obviously is tedious and time consuming,especially in view of the fact that many thousands of feet of film must be inspected daily.

It is therefore, an object of this invention to provide a reeling devicehaving means by which the speed may be regulated.

A further object is the provision of novel clutching and breaking means by which the rotation of a reel may be instantly stopped, and the reel may be rotated in an opposite direction if so desired.

These and other advantageous objects, which will later appear, are accomplished by the simple and practical construction and arrangement of parts hereinafter described and exhibited in the accompanying drawings,

forming part hereof, and in which:

Figure 1 represents an elevational view of a motor 6, having a shaft 7 to .which is fixed pulleys 8 and 9, which serve, respectively, to drive the reels at each'end of the table; Inasmuch as the reeling structureis scription is confined to the structure shown at the right end of the table as 'shownin Figure 1.

groove 14; in a male clutch member 15, ro

' tatahly mounted on shaft 16, the latter being journaled in the bearing ion the Wallsof a the same at both ends of the table, the de- I casing 17, and having thereon, adjacent the a clutch member 15, a thrustbearing 18 to receive the thrust of the arm19- of a leverv pivoted on a bracket 19a projecting fromthe casing.

The other arm '20 of thelever has threaded in its extremity a bolt 21, engaging the arm 22 of a bell crank rotatablymounted onshaft 4:4. The other arm 24 of the bell crank has an enlarged portion 25 engaginga vertically positioned: bolt 26 threaded in the extremitiesof arm 27 of a rocker fixed to shaft 43, a

which also has fixed thereto. another arm 28 having a laterally projecting pin 29 engageab'l-e with the underside of the-arm 30 of a lever fulcrumed :at 31, which is supported the underside of the e0:

by'bracket 32 fixed to table. l 1

Attachedto arm 30:is a'metal strap 33 connected'lto a brake band34 passing over the g outer surface of aifemale clutch member. 35, l

and attached to a bracket jmounted Ont-lit 1.

upper :side of the table.

The leverfulcrumed ;at31 has another arm 37 fi-nitheextremity of which'is threaded-a bolt 38 attached to a tension spring 39, the

latter -'b eing. also attached to the ,underside of Z v V V the table.

The clutch is small compression springs 40.

l of the cone type and the, female member 35 is provided with a pluralitylof recesses in which are positioned trio tion plugs 40 normallyurgediotitwardly by 1 i I 1 5 I: .Attachedto the casing 17 is a housing 41 for :a reel 41a, which is keyed-to a stub A2...

forminga part of shaft 16, 130.;Wl1i0hith8 female clutch member 35 is fixed. spring 42a bearsagainst the male-and female-clutch .55 Pulley *9 is connected by means of a belt 10 to a pulley 11, fixed Ito-a stub shaft 12Qto- .jwhich is also'fixed a, pulley 12, over which 1 :passes a belt 13, the latter operatingin a.

members'and tends to constantly urge them apart. The shafts 43 and 1% are journalled in brackets 16 depending from the under side of the table. Arm 24 is pivotally connected at 4:7 to a link 48 which in turn is pivotally connected at 4:9to a foot pedal 50 pivoted on a base 51. i

In operation, film is wound'from the left reel, (see Figure 1), onto the right reel.

To wind in the direction indicated, the operator presses on foot pedal 50, which action moves brake band 34 upwardly against the action of spring 39 so that the female clutch member 35 is free to rotate, and then male clutch member 15 is moved into engagement with the female member 35 against the action of spring 42a. 1

The male member15 is constantly rotated,

.and as soon as it engages the female member,

the two rotate together to Wind the film on I the reel at the right of the table. It should be noted that the clutch members at the left v lease the plugs 40.

of the table are disengaged and the reel associatedtherewith rotates freely. Should it be desired to reverse the direction of rotation, the pressurewould be removed from pedal 50, and pedal .50 would be depressed to engage the clutch members at the left of the table.

At times it is desirable to operate the reels I at a slow speed, in whichcase a slight pressure on the pedal will instantly release the brakes, at the same time moving the male member 15 into engagement with the friction It may be seen that such a clutch structure enables the speed to be adjusted to any degree by controlling the pressure on the pedals.

During the reeling operation, should a break in the film be indicated to the operator, pressure on the pedals is removed and the brakes instantly stop the rotation of the reels.

Now, by pressing slightly one or the other pedal, the. film may be slowly moved backwards or forwards to place the film break in a convenient place for repairing.

The foregoing disclosure is as descriptive and illustrative only, and not as restrictive or limitative of the invention, of which obviously an embodiment may be means meansto simultaneously rotate the common.

to be regarded H to engage a selected female clutch member.

the brakes and independently drive either of said reels.

3. In a devlce of the character described,

"a winding 'reel and an unwinding reel,

brakes normallypreventing rotation ofthe reels, and means to simultaneously release the brakes and independently rotate either of said reels at varying speeds.

V 4..In a deviceof the character described a winding reel and unwinding reel, means for drivlng said reels, brakes normally prevent pendent shafts associated with driving for each reel, and foot controlled v rotation of the reel, a common shaft associated with the brakes for each reel, inde-J brakeshaft, and a selected independent shaft i to release the brakes and independently drive either of said reels.

This specification signed this 18th day of July, 1931.

. ERIC T; FRANZEN. ARTHUR J. VVEISS.

constructed including many modifications 1. A device of the character described, a I

windin reel and an unwindin reel each of said reels being connected with a female clutch member, normally disengaged constantly rotating male clutch members, brakes normally preventing rotation of the female members, and means to simultaneously rebrakes from both female clutch members and cause a male clutch member

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