US1654725A

US1654725A - Photographic camera

Info

Publication number: US1654725A
Application number: US98891A
Authority: US
Inventors: Eriksen Aage Ingemann
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-03-31
Filing date: 1926-03-31
Publication date: 1928-01-03
Anticipated expiration: 1945-01-03

Description

Jan. 3, 1928.

A. l. ERIKSEN raoToGnAPHIc cnam' Filed March 31. 1926 ffl r 1/ fdl Ogawa.

Patented Jan. 3, 1928.

UNITED srmezs i 1,654,725 PATENT oFFlcE.

I LAGE INGEMANN ERIKSEN, oF HoLs'rEBno, DENMARK.

PHOTOGRA2HIC CAMERA.

Application led March 31, 1926. Serial No. 98,891. j

This invention relates to a photographicl roll film camera and consists in the provision of means for holding in said camera a plurality of film rolls as well as means for unwinding such films separately for exposure. The invention is illustrated in the accompanying drawings which show the preferred form of construction.

Fig. 1 represents a sectional ofthe camera.

' Fig. 2, a section on the line II-II `of Fig. 1,v and n j Fig. 3, a cross-section on the line III-H1 of Fig. 2. Fig. 4 is a perspective view of a detail.

The camera casing 1 has at one end a film carrier composed of a shaft 2 and two discs 7 and 8 which are fixed to said shaft. One end of the shaft projects through the camera casing and is fitted with a thumbplece 3 i whereby the shaft can be turned. A disc 4 which turns with the shaft, is fitted with a plurality of equidistant aperturesfor the reception of a pin 6 carried by a spring. 5. The latter is secured at one end to the caslng 1 and serves to lock the shaft in different positions of rotary adjustment. A plurality of films 40,7applied `together with their protective backing strips to spools 37 in the usual manner, is mounted between the discs 7 and 8. To hold lthe film rolls in position the disc 7 is provided with axially adjustable pivot pins 9 which are controlled by springs 10, and the disc 8 is fitted with smally shafts 11 which can be rotated in opposition `to springs 12. The film rolls are held between the pinsr9 and the shafts 11 both-of which project -through the discs i7 and 8. One end vplatey 39 of the spool 37 has a round recess for the receptionof the pvot `pin 9, and theother end plate 38 has a square `recess vfor the reception of the square end 13 of the shaft 11 which latter, there-y fore, becomes coupled to `the spool. The arrangement is such that the film unwinds in opposition to the spring 12. The film, or rather its protecting strip, carries at its outer vend a thin rod 42 which extends be front view spools may be formed with notches 45 l(Fig. 2) for the reception of the rod 42 when the films vare lpacked away.

At the opposite .end vof the lcasing 1 v'a take-up roller 30is arranged. The latter is composed of a hollow cylinder which is provided with a longitudinal slot 31 ex tending to the center of the end plates 29. The roller is embraced vby guider plates -31 within ywhich it can be rotated, these plates being connected to the casing .1. Springs 32 normally engage notches 32 in the end plates 29 of fthe roller so as to hold the latter normally with the slot facing upwards. Normally supported in the slot of the roller isa shaft 22 which `carries two discs 23 and 24'arranged so as to cover the-end yplates 29 of the rollerv30. -Eachof these discs is fitted Y on its inner side with two spaced projections 27-and 28 which normally extend into the' slot'of the roller 30. The shaft 22 and its discs can be lifted off .the roller .30 for which purpose a U-shaped frameA 19 is provided. The latter moves vbetween two parallel walls 1,6 and 16 onf thecasing 1. It has a centrally disposed handle 18 which projects from `the casing through a slot 17 in the wall 16. The '

end members

20 and 21 ofthe frame lmove in laterally disposed slots 15 in thelwallfl and-are in rotatable engagement, one with the projecting end of the shaft 22 the other with a boss 25 formed centrally onthe disc 23. A spring 26 on the member 20 engages a notch in the disc 23 andfholds the discs23 and 24 normally with the projections 27 and 28 in the uppermost position. thread for the reception of a high-pitched screw 34. The Alatter is slidably guided in a sleeve 33 on the casing 1 and is normally held by a spring 36 out'of Contact with the boss 25. The screw has a milled head 35 whereby it can `be pushed into engagement with its screw socket in the boss 25 and used forturning the take-up roller.

The modus operandi is as follows:

The boss 25 has a female screw-A Before an exposure, vthe pin `6 is released from fthe disc 4, and the film carrier is turned to a position which is intermediate between two of those in which it vcan be locked. Thenthe handle 18 is raised in its slot so as to lift the shaft 22 and its disc from the roller 30 and place the discs against the film carrier. The' projections 27 and 28 of the

discs

23 and 24 will thenbe situated lrelative to the path of the rods f2 so that, on the film carrier being restored to a locked position, the projections will receive the ends of the rod of one of the films between them. If now the frame 19 is restored to its initial position, the rod 42 will be vcarried along by the projections 27, and the'film will be unwound in opposition tothe spring 12. The rod enters the slot in the roller 3() together with the projections, and the roller can then be used for further unwinding of the film. rIhis is effected by means of the screw'34 which is pushed into engagement -with the boss 25 and turned'in the direction of the screw-thread. Ledges 43 vsupport the film and hold it in the focal plane. If the film is long enough to receive more. than one picture, suitableknown means are provided f for indicating the amount of unwinding for each picture. y Thev springs32 and 26 tend,`

' this direction, and the screw then leaves the boss 25 and sets the shaft22 free. Then the latter can be raised by means of the frame 19 so as to allow the film and its protecting strip to re-wind completely on to the spool, whereupon the carrier is yturned so as to place another film in position for use.

Exposed films can be removed from the carrierfor development whenever required, and new films can be inserted. Y

Depending on the size of the discs 7 and 8 and of the film rolls, any number of films may be accommodated in the carrier in this manner.

The construction of the device may be varied vwithout departing from the spirit of the invention.

I claim:

' 1. In av photographic roll film camera, a casing, a rotatable film carrier arranged at one end of said casing, means on said carrier for holding a plurality of filmA rolls, a takeup roller arranged at rthe opposite end of the casing, and means operated from the outside of the casing for 1carrying the end of each separate film across the casing and connecting it to the take-up roller.

2. In a photographic roll film camera, a casing, a film carrier at one end of said cas'- ing comprising a rotatable shaft, discs carried by said shaft, resilient pivot elements spaced around said discs for holding a plurality of film rolls between the latter parallel with the shaft, a take-up roller at the opposite end of the casing, and means operated from the outside of the casing for carrying the end of each separate film across the casing and connecting it to the take-up roller.

r3. A structurer as claimed in .claim 2 wherein one set of pivot elements are coupled to the film rolls so yas to participate in their rotation,and springs connected to said latter pivotelements so as to oppose the unwmding of the films and cause their re-Winding. when released. f

4f'. In a photographic roll film camera, a casing, a rotatable film carrierat one end of said casing, meansfforvattaching aplurality of film rolls to saidV carrier so that each film can be brought into position for use by an adjustment of the carrier, springs controlling the film rolls so as to .oppose their unwinding and effect a 4re-windin`g of the same when released, rods connected kto the ends of the films, a 4Vtake-up roller atthe opposite end of the casing, and means for carryingthe rods and the film ends ,separately across the casing and connectingthei'u to the take-up roller. l

5. In a structure as claimed inclaim` il,

a take-up roller comprising a cylinder sup' ported rotatably in the casing, a shaft accommodated normally in a longitudinal'slot in said cylinder, means operated from the outside of the casingk for moving thesluaftv through the space between the take-up roller, and the film carrier, means `for. connecting the shaft to the lrod at the end of the film so;that vthe latter can be drawn together with the shaft into the slotV in gthetakefup roller,y and means for rotating the latter "so .f

as to unwind the film. .l

6. In a structure as. claimedin claim 4, a take-up roller comprising a cylindersupported rotatablyin the'casing, a shaftv accommodated normally in a longitudinal slot 'i vported rotatably in the casing, a shaft accommodated normally in a longitudinal slot in said cylinder, a frame holding saidk shaft, said frame being guided in slots in the ,casing so that it can be used for-moving l'the shaft through the space between the take-up roller andthe film carrier, discs connected to said shaft, means on said discs for connectingthem to the rod at thel end of afilm and drawing said rod into the slotfin the `take-up roller,landrmeansfor rotating the latter so as to unwind the film. Y 8. In a structure as claimed in claim/l, a take-up roller comprising a cylinder supported rotatably in the casing, a shaft accommodated normally in a longitudinal slot in said cylinder, a frame holding said shaft, said frame being guided in slots in the casing so that it can be used for moving the shaft through the space between the take up roller and the film carrier, discs connected to said shaft, projections on said discs adapted to engage the rod at the end of a lm and pull it together with the shaft into the slot in the take-up roller, and means for rotating the latter so as to unwind the film.

9. In a photographic roll film camera, a casing, a rotatable film carrier at one end of saidcasing, means for attaching a plurality of film rolls to said carrier so that they can be turned by the` latter separately into position for use, springs opposing the unwinding. of the films and tending to rewind them on release, a take-up roller held rotatably at the opposite end of the casing, a sha-ft accommodated normally in a longitudinal slot in said take-up roller, a frame holding said shaft, said shaft being guided i latter is located in the take-up roller, and

means for coupling the shaft to the roller so that the latter can be turned by means of the screw.

10. The structure claimed in claim 9 and ledges arranged in the casing so as to support the unwound film in position forexposure.

11. The structure claimed in clai1n9 including an additional casing wall covering the frame and its guide slots, and an operating handle connected to the frame and projecting' through a slot in said additional wall.

AAGE INGEMANN yERIKSEN.