Web take-up device

Claim 2

An automatic web take-up device for a length of a web having a free end, said device comprising: a. web receiving means for storing the web, the web receiving means having a core and at least one member projecting from said core; b. means coupled to said web receiving means for rotatably supporting said receiving means; c. web catching means rotatably mounted on said member and having a hooked portion for movement therewith between a first position for engaging the free end of the web and a second position for guiding the free end onto said core in response to rotation of said receiving means; and means for normally biasing said hooked portion of said catching means toward its first position for engaging the free end of the web as the web is delivered to the take-up device.

Claim 3

An automatic web take-up device for a length of web having a free end, said device comprising; a. web receiving means for storing said web, the web receiving means having a core and at least one member projecting from said core; b. means coupled to said web receiving means for rotatably supporting said receiving means; and c. web catching means rotatably mounted on said member for engaging the free end of said web and for guiding the latter onto said core in response to rotation of said receiving means, said web catching means comprises (1) a catcher arm having a hooked portion for engaging the free end of the web, and (2) biasing means engaging said arm for urging said arm to a position for engaging the free end of the web as the web is delivered to the take-up device.

Claim 4

An automatic web take-up device for a length of web having a free end, said device comprising; a. web receiving means for storing said web, the web receiving means having a core and at least one member projecting from said core; b. means coupled to said web receiving means for rotatably supporting said receiving means; and c. web catching means rotatably mounted on said member for engaging the free end of said web and for guiding the latter onto said core in response to rotation of said receiving means, said web catching means comprises (1) a catcher arm having a hooked portion for engaging the free end of the web, and (2) biasing means engaging said arm for urging said arm to a position for engaging the free end of the web as the web is delivered to the take-up device.

Claim 5

first and second reel flanges having outer circumferences, said flanges being attached to said core and being spaced from each other so that film can be wound on said core between said flanges, and said first flange having means defining a slot extending from a position substantially adjacent the outer circumference of said first flange to a position substantially adjacent said core; c. means within said chamber coupled to said core for rotatably supporting said take-up reel for rotation about said axis; and d. means for engaging the free end of said film, comprising

Claim 6

first and second reel flanges having outer circumferences, said flanges being attached to said core and being spaced from each other so that film can be wound on said core between said flanges, and said first flange having means defining a slot extending from a position substantially adjacent the outer circumference of said first flange to a position substantially adjacent said core; c. means within said chamber coupled to said core for rotatably supporting said take-up reel for rotation about said axis; and d. means for engaging the free end of said film, comprising

Claim 7

biasing means anchored to said catcher arm and to said first flange for urging said catcher arm to a position for engaging said film.

Claim 8

biasing means anchored to said catcher arm and to said first flange for urging said catcher arm to a position for engaging said film.

Claim 9

An automatic web take-up device for a length of web having a free end, said device comprising: a. web receiving means for storing the web, the web receiving means having a core and at least one substantially circular flange projecting from said core, said flange having an arcuate slot therein extending from a position substantially adjacent the outer circumference of said flange to a position substantially adjacent said Core; b. means coupled to said web receiving means for rotatably supporting said receiving means; and c. web catching means rotatably mounted on said flange for engaging the free end of the web and for guiding the latter onto said core in response to rotation of said receiving means, said web catching means having (1) a portion which extends through said slot whereby the length of said slot determines the extent of movement of said catching means and (2) means for normally biasing said catching means to a position for engaging the free end of the web as the web is delivered to the take-up device.

Claim 10

An automatic web take-up device for a length of web having a free end, said device comprising: a. web receiving means for storing the web, the web receiving means having a core and at least one substantially circular flange projecting from said core, said flange having an arcuate slot therein extending from a position substantially adjacent the outer circumference of said flange to a position substantially adjacent said Core; b. means coupled to said web receiving means for rotatably supporting said receiving means; and c. web catching means rotatably mounted on said flange for engaging the free end of the web and for guiding the latter onto said core in response to rotation of said receiving means, said web catching means having (1) a portion which extends through said slot whereby the length of said slot determines the extent of movement of said catching means and (2) means for normally biasing said catching means to a position for engaging the free end of the web as the web is delivered to the take-up device.

Claim 11

An automatic web take-up device as claimed in claim 1 further comprising means engageable by the web during unwinding of the web from the device for smoothly disengaging the web from said web catching means.

Claim 12

In a motion picture projector including an automatic take-up device for film having a free end that is adapted to be fed by the projector toward the take-up device, the film having perforations therein, the improvement comprising: a. means defining a film take-up chamber in the projector, said means having a channel through which film can enter said chamber; b. a film take-up reel located within said chamber and positioned to receive film entering said chamber, said take-up reel comprising

Claim 13

In a motion picture projector including an automatic take-up device for film having a free end that is adapted to be fed by the projector toward the take-up device, the film having perforations therein, the improvement comprising: a. means defining a film take-up chamber in the projector, said means having a channel through which film can enter said chamber; b. a film take-up reel located within said chamber and positioned to receive film entering said chamber, said take-up reel comprising

Claim 14

An automatic film take-up device as claimed in claim 5 wherein said core has a recess substantially adjacent and aligned with said slot, said recess being adapted to receive said elongated portion of said arm.

Claim 15

An automatic film take-up device as claimed in claim 5 wherein said elongated portion of the arm and a portion of said means defining said take-up chamber are positioned with respect to each other when the elongated portion is in its position for engaging film so that they are closely adjacent to each other during the engaging of the film by said film engaging means whereby twisted or negatively curled film can be handled by the device.

Claim 16

An automatic film take-up device as claimed in claim 5 wherein said means defining a chamber comprises plate members positioned with respect to each other to define a substantially enclosed chamber, said plate members having a channel therein through which film enters said enclosed chamber.

Claim 17

An automatic film take-up device as claimed in claim 5 wherein said chamber defining means defines an enlarged throat in said channel at the entrance of the channel into the chamber, and the device further comprises a roller located in said throat and engageable by film during unwinding of film from the reel, said roller being positioned to smoothly disengage film from said engaging means as the engaging means reaches a position adjacent the roller.