Slide projector

Claim 2

In a slide projector, a combination comprising a pair of locating means disposed in a first plane and defining a first and a spaced second projecting station; a support located in a second plane between said locating means and arranged to carry an outermost slide of a supply of stacked slides; movable slide changer means comprising slide transporting means located in said second plane to respectively transport the outermost slide and the next-following slide from said support into registry with the first and second stations in response to movement in a first and a second direction; guide means for moving the thus transported slides from said second into said first plane; and evacuating means comprising two evacuating members for respectively removing slides from registry with said first and second stations in response to movement of said transporting means in said first and second directions, and resilient means supporting said evacuating members.

Claim 3

A combination as defined in claim 1, wherein each of said evacuating members comprises a pusher having a cam face which enables it to bypass a slide at the respective projecting station in response to movement of the pusher in the direction in which the transporting means advances in order to transport a slide from said support to the respective station.

Claim 4

In a slide projector, a combination comprising a pair of locating means disposed in a first plane and defining a first and a spaced second projecting station; a support located in a seCond plane between said locating means and arranged to carry the outermost slide of a supply of stacked slides, said outermost slide constituting the lowermost slide of said supply; movable slide changer means comprising slide transporting means located in said second plane to respectively transport the lowermost slide and the next-following slide from said support into registry with the first and second stations in response to movement in a first and a second direction, and means for lifting the remainder of the supply of stacked slides with reference to the lowermost slide in response to movement of said transporting means in either one of said directions; guide means for moving the thus transported slides from said second into said first plane; and evacuating means comprising two evacuating members for respectively removing slides from registry with said first and second stations in response to movement of said transporting means in said first and second directions.

Claim 5

In a slide projector, a combination comprising a pair of locating means disposed in a first plane and defining a first and a spaced second projecting station; a support located in a seCond plane between said locating means and arranged to carry the outermost slide of a supply of stacked slides, said outermost slide constituting the lowermost slide of said supply; movable slide changer means comprising slide transporting means located in said second plane to respectively transport the lowermost slide and the next-following slide from said support into registry with the first and second stations in response to movement in a first and a second direction, and means for lifting the remainder of the supply of stacked slides with reference to the lowermost slide in response to movement of said transporting means in either one of said directions; guide means for moving the thus transported slides from said second into said first plane; and evacuating means comprising two evacuating members for respectively removing slides from registry with said first and second stations in response to movement of said transporting means in said first and second directions.

Claim 6

A combination as defined in claim 3, wherein said transporting means comprises two motion transmitting portions one of which transports slides to the one and the other of which transports slides to the other of said stations.

Claim 7

In a slide projector, a combination comprising a pair of locating means disposed in a first plane and defining a first and a spaced second projecting station; a support located in a second plane between said locating means and arranged to carry an outermost slide of a supply of stacked slides; movable slide changer means comprising slide transporting means located in said second plane to respectively transport the outermost slide and the next-following slide form said support into registry with the first and second stations in response to movement in a first and a second direction; guide means for moving the thus transported slides from said second into said first plane; evacuating means comprising two evacuating member for respectively removing slides from registry with said first and second stations in response to movement of said transporting means in said first and second directions, said slide changer means and said evacuating means being respectively provided with first and second racks; and pinion means rotatable about a predetermined axis and meshing with said racks so that one of said racks is moved in one direction in response to movement of the other rack in the other direction and vice versa.

Claim 8

In a slide projector, a combination comprising a pair of locating means disposed in a first plane and defining a first and a spaced second projecting station; a support located in a second plane between said locating means and arranged to carry an outermost slide of a supply of stacked slides; movable slide changer means comprising slide transporting means located in said second plane to respectively transport the outermost slide and the next-following slide form said support into registry with the first and second stations in response to movement in a first and a second direction; guide means for moving the thus transported slides from said second into said first plane; evacuating means comprising two evacuating member for respectively removing slides from registry with said first and second stations in response to movement of said transporting means in said first and second directions, said slide changer means and said evacuating means being respectively provided with first and second racks; and pinion means rotatable about a predetermined axis and meshing with said racks so that one of said racks is moved in one direction in response to movement of the other rack in the other direction and vice versa.

Claim 9

A combination as defined in claim 5, wherein said first plane is located at a level below said second plane.

Claim 10

A combination as defined in claim 5, further comprising means for collecting slides removed by said evacuating members in the same sequence in which the slides are being removed from said support.

Claim 11

A combination as defined in claim 5, wherein said guide means comprises resilient elements.

Claim 12

A combination as defined in claim 5, further comprising motor means for rotating said pinion means.

Claim 13

A combination as defined in claim 5, wherein said slide changer means comprises handle means by means of which said slide changer means is movable in said directions.

Claim 14

A combination as defined in claim 5, wherein said slide changer means is reciprocable in a substantially horizontal plane and said support is arranged to carry a tray containing a stack of horizontal slides the lowermost one of which rests on said support in the path of movement of said transporting means.

Claim 15

A combination as defined in claim 11, further comprising a removable receptacle located at a level below said support and arranged to collect slides which are removed from said stations by said evacuating members whereby the thus removed slides enter the receptacle by gravity feed.

Claim 16

A combination as defined in claim 5, further comprising transmission means connecting said evacuating means to said slide changer means for movement in said second direction on movement of said slide changer means in said first direction, and vice versa.