General arrangement for projector

Claim 2

A projector comprising, an outer case having a pair of opposed side walls, opposed upper and bottom walls, a front wall and a rear end, means for supporting an electric lamp within the case and adjacent the rear end of the case, first air deflecting means to cause a first flow of air into the case through the bottom wall, up and around opposite sides of the lamp and adjacent the side walls and upwardly out of the case through the upper wall, said first air deflecting means being located between the lamp and said side walls and spaced from said side walls, second air deflecting means to cause a second flow of air from around the upper end of the lamp, rearwardly out of the case at the rear end of the case, means in the case and spaced rearwardly of the front wall of the case, and disposed forwardly of the lamp, to form a passageway disposed transversely of the case and passing through a pair of said opposed walls of said case, and formed with a film framing opening, for film to pass through the case and past said film framing opening, to frame light emanating from the lamp and passing through a frame of the film at said framing opening, to project an image of said frame forwardly.

Claim 3

The combination of claim 1, and a stand, means on the stand for supporting the case on a supporting surface, at various adjusted angles about a horizontal transverse pivotal axis through which a line perpendicular to the center of said framing opening, passes.

Claim 4

The combination of claim 2, and lens means in the casing and coaxial with said line.

Claim 5

The combination of claim 3, said lens means comprising a condensing lens assembly disposed between said passageway and lamp support means.

Claim 6

The combination of claim 4 and a focusing lens assembly disposed forwardly of said passageway forming means and passing through said front wall.

Claim 7

The combination of claim 2, said case comprising upper and lower symmetrically disposed case sections having mutually contacting edges in the plane of said line and transverse pivotal axis.

Claim 8

The combination of claim 1, and means for manually advancing the film in said passageway, one film at a time.

Claim 9

The combination of claim 1, said advancing means including a manually engageable actuator member projectiNg from said case.

Claim 10

The combination of claim 8, said passageway forming means comprising a plate, said side walls of said case having registering slots at said edges, to receive parts of said plate, said actuating member being slidably mounted on said plate.

Claim 11

The combination of claim 1, said case having a rear opening at its rear end, and means to mount said lamp support means on the case for movement through said rear opening without disconnecting said lamp support means from the case, to permit replacement of the lamp.

Claim 12

The combination of claim 10, said lamp support means having means to close the rear opening of said case, when said lamp support means is moved into said case.

Claim 13

A projector comprising an outer case having a pair of side walls, an upper wall, a bottom wall, a front wall and a rear end, means for supporting an electric lamp within the case adjacent the rear end of said case, means to form a passageway through the case and spaced rearwardly of the front wall, said passageway having a film framing opening, means to feed film through said passageway one frame at a time, past said film framing opening to frame light emanating from the lamp and passing through the framed frame of the film, to project an image of said frame forwardly, said passageway forming means providing said passageway through said upper and bottom walls of said case and between said side walls, means on the stand for supporting the case on a horizontal supporting surface, for pivotal movement to various adjusted angles about a transverse horizontal pivotal axis through which a line perpendicular to the center of the framing opening, passes, condensing lens means in the casing and between said passageway and the lamp support means, said condensing lens means being coaxial with the center of said framing opening and perpendicular to said opening said case comprising upper and lower case sections having mutually contacting edges in a plane passing through the axis of said condensing lens means and said center of said framing opening and of said pivotal axis.

Claim 14

A projector comprising an outer case having a pair of side walls, an upper wall, a bottom wall, a front wall and a rear end, means for supporting an electric lamp within the case adjacent the rear end of said case, means to form a passageway through the case and spaced rearwardly of the front wall, said passageway having a film framing opening, means to feed film through said passageway one frame at a time, past said film framing opening to frame light emanating from the lamp and passing through the framed frame of the film, to project an image of said frame forwardly, said passageway forming means providing said passageway through said upper and bottom walls of said case and between said side walls, means on the stand for supporting the case on a horizontal supporting surface, for pivotal movement to various adjusted angles about a transverse horizontal pivotal axis through which a line perpendicular to the center of the framing opening, passes, condensing lens means in the casing and between said passageway and the lamp support means, said condensing lens means being coaxial with the center of said framing opening and perpendicular to said opening said case comprising upper and lower case sections having mutually contacting edges in a plane passing through the axis of said condensing lens means and said center of said framing opening and of said pivotal axis.

Claim 15

The combination of claim 12, said case having an opening at its rear end, means to mount said lamp support means on the case for movement through said rear opening without disconnecting said support means from the case, to permit replacement of the lamp, said lamp support means having means to close said rear opening of said case, when said support means is moved into the case.

Claim 16

The combination of claim 16, and a focusing lens assembly disposed forwardly of said passageway forming means and passing through said front wall of said case.

Claim 17

The combination of claim 12, said pair of opposed walls through which said passageway passes being the upper and bottom walls of said case.