US1389500A - Motion-picture reel - Google Patents

Description

EDWARD H. GOODRICH .AND

HENRY C. MARTINELLI, 0F SPRINGFIELD, MASSA- CHUSETTS.

MOTION-PICTURE REEL.

Application led .Tune 25,

Massachusetts, have invented certain new.

and useful Improvements in Motion-Picture Reels, of which the following is a specification.

Our invention relates to an improvement in reels and more particularly to reels for use in connection with-motion picture machines.

The principal objects of our invention are to provide a reel having spring means for holding one end of a film or the like, so that said film may be easily 'and quickly attached to or detached from said reel; to

- provide means for operating said film holdlng means so as to-eliminate the liability of the film holding means being distorted, as frequently occurs when operated by the operators finger; and to arrange the operating means so that it may be operated from one side' of the reel, thus eliminating the necessity of the operator cramping his hand between the two side plates to raise the film holding means.

Another object of our invention is to provide a reel that is simple in construction, durable and eflicient in use, and one that may be placed upon the market at'a low cost. I

Further objects of our invention will appear in the following detailed description, taken in connection with the accompanying drawings, f .rming a part-of this specification, and in which drawings l,Figure 1 lis a diagrammatic section through our improved reel.

Fig. 2 is a vertical section taken on the line 2 2 of Fig. 1, and

Fig. 3 is a side elevation of our improved reel.

In the drawings, wherein similar characters refer to similar parts throughout the views, A designates the side plates or flanges; B, the hub portion secured between Said side plates or fianges'A; C, a leaf spring for holding the end of the film to be ,wound upon the reel; and D, the means for raising the film holding spring to a non-film engaging position.

In referrlng to the side plates or flanges, A, these members are of the ordinary con- Specicat-ion of Letters Patent. Patented Allg. 30, 1921.

1920. Serial No. 391,655.

1n to reduce the weight thereof, and the central axial openings 6. At one side of and adjacent the opening 6 of one of the plates 5 is provided an-opening 7 which will be hereinafter more fully described.

The hub B has a central axial bore 8 therein that alines with the openings 6 of the Side plates A. Adjacent and parallel to the borev 8 is provided a way 9 having alreduced extension 10 at one end, and an enlarged opening 11 alining with the openino 7 of one of the 'side plates A, at the other end thereof. Radially extending from the way 9 to the outer surface ofthe hub struction, having the usual openings 5 there- B, is provided a way or opening 12. These ways and openings just described are adapted to receive the meansD for raising the material 'holding means C,- `which will be hereinafter set forth.

The means C for holding one end of the film or material to be wound upon the hub, consists of a leaf spring 13 conforming to the curvature of the hub B, and having one end thereof secured to said hubby screiivs 14,- but any other -securing means may be used if desired. It is to be noted that the the insertion of the material the leaf spring 13, said means consists way 10. Slidably mounted in the way 12 f ,is a pin 18 adaptedto ride up the inclined face 16 when the plunger 15 is slid in the way 9. Thus the pin 18 will engage and raise the leaf spring 13. On the reducedv extension neark the inclined face 16, is a disk-shaped stop plate 19, which is adapted to bear against the pin 18 when a coil spring 20 returns the plunger to its nonraising position. The coil spring 2O is mounted upon the reduced extension 17 and is adapted tobear against the inner end of the relatively large way 9 and the disk shaped stop plate 19.

asY

ga hanges in details In assembling our improved reel, the plunger-15 is inserted into .the way 9, thus the reduced extension carried by the plunger 15 will carry the spring 20 and will. hold said spring in correct position While said reduced extension 17 enters the reduced bore 10. Pressure being exerted upon the plunger 15 until the disk shaped stop plate 19 passes the Way l2allowing the pin 18 to beins erted in the way 12, in rear of the stop ldisk shaped plate 19, said pin will be engaged by the disk-shaped stop plate and prevent the spring 20 from forcing the plunger 15 out of the way 9. After the pin 18 is assembled, the leaf sring 13 is secured over saidV pin,thus hol way 12. l

When it is desired to insert film or the material to b reel, between the spring ei the operator inserts his fingers through one of the openings 5 of both side plates A allowing one of his lingers to restupon the plunger 15 While his thumb is on the oppoing the,pin 18 in the wound upon the,

.site side of the reel, thus permitting the reel to be held in any desired position. By exerting pressure upon the plunger 15, the 1nclined face 16 will engage the pin 18, which in turn engages the leaf spring 1,3 and raises the free end of the same ,from engagement with the hub. The opera-tor then inserts the end` of the material' between spring 13 and-hub B and as'he releases the pressure upon the plunger 15, the coil spring 20 returns the plunger until the disk shaped stop plate 19 engages the in 18. Im the meantime .the ,leaf spring 13 as ened the `material and holds it firm.

may be made Without departing from the spirit or scope of our invention; but,

1. In a reel, the combination of a hub portion, a leaf` spring secured to said hub portion for holding one end of the material to be\wound upon said reel, a pin slidably mounted beneath said material holding spring, and a plunger slidably mounted in Vsaid hub portion having an annular tapered ace'adapted to engage said in to raise said leaf spring to non-material engaging position. y

one end of a 3 and the hub B 2. l In a reel, the combination of al hub por hub portion having an inclined face adapted to engage said pin t0 raise said leaf spring to non-material engaging position, and a disk-shaped stop plate upon said plunger adapted to engage said pin to. hold said plunger in' said hub portion.

3. In a reel, the combinationv of a hub portion having a bore therein, a leaf spring secured to said hub portion' for holding one end of the material to be wound upon said reel, a pin slidably mounted beneath said material holding spring, a plunger slidably mounted in said lbore of .said hub portion having an annular inclinedface adapted to' engage said pin to raise said leaf spring to non-material engaging position, a diskshaped stop plate upon said plunger adapted to engage said pin to hold the plunger in saidhub portion, and a-coil spring adapted to engage against the inner end of said bore and said disk-shaped stop plate, to hold the annular tapered face out of engagement With the pin.

4. In a reel, the combination of a hub portion havinga bore with a reduced extension therein; -a leaf spring secured'ito said hub portion for holdingv one end of the material to be wound upon said reel.; a pin slidably mounted beneath said material holding spring; a plunger slidably mounted in said bore 'of said hub portion including an inclinedface adapted to engage said pin to raise said leaf spring to non-material engag* ing position, a reducedportion adapted to 4 slide inthe-redueed portion `of said bore,

f and a stop plate adapted to engage said pin vto hold the plunger in said hub portion;

and acoil spring mounted 4uponthe reduced lportionuif said plunger and adapted to engage the inner end -of the enlarged portion of said bore and said stop plate, to hold the inclined Jace out f engagement with said pim 'EDWARD H. eooDRIoH. HENRY C. MARTINELLI.

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