Patent GB-190820282-A (GB)
Title: Improvements in Selective Mechanism for Actuating Types, Symbols, Signals and other Objects.
Inventor: ADERS MAX LEO CARL FRANZ
Filed: 1908-09-26
Granted: 1909-09-27
Abstract: 20,282. Aders, M. L. C. F. Sept. 27, 1907, [date applied for under Section 91 of Patents &c. Act, 1907]. Signals, pneumatic and hydraulic. - Relates to pneumatically or hydraulic allyactuated adjusting- mechanism of the kind which comprises one or more series of turbine vanes, whereby symbols, signals, &c. or groups of such elements are brought into displaying, signalling, or connecting positions as in apparatus for controlling groups or series of conduits, signals, &c. One or more vane chambers of the turbine member are closed against the discharge of the actuating-fluid, so that the actuation of the turbine ceases at the moment when the closed chamber arrives in front of the supply port. Figs. 1 and 2 show one form of apparatus in which the turbine may be mounted upon the axle of the numeral or type carrier of a typewriter &c. Actuating-fluid introduced tangentially from any one of ports 1 ... 16 rotates the turbine in one direction against the action of a spring or weight and passes through fixed guides t to a central chamber n, and thence to a discharge pipe p. The turbine vanes support a ring v having a bore w, which always communicates with an annular channel x in a fixed disk b. A pipe x leads from the channel x, and the turbine chamber in which the bore w is situated is closed by a wall z. When any port is opened, the fluid first escapes through the pipe p and finally through the pipe x<1>, at which moment the turbine ceases to rotate, and the selected type on the carrier is in the printing position. A stopping-device or brake is preferably employed which always tends to stop the turbine. The pressure fluid flowing away through the pipe p disengages the stopping device, which only acts when the fluid is diverted to the pipe x<1>. The discharge of the fluid through the pipe x<1> may be used for moving a device the function of which is that for which the adjustment is made, for example the actuation of a printing-hammer or type, or the production of a visual or acoustic signal &c. After performing this function, the discharged fluid may release the braking or stopping device and so allow the turbine to move back to normal position. In a modification, the turbines are arranged for axial instead of tangential impact of the fluid, and rotate always in one direction. In this case, however, the turbine does not move back to any special position after being selectively adjusted. The same effect can be obtained when the fluid has tangential impact on the vanes. The form shown in Figs. 1 and 2 may be arranged for axial impact. A suitable braking-device comprises a wheel on the turbine shaft, (where the turbine rotor cannot be employed) having abutments which co-operate with a rollerpawl. This roller in most cases forms the end of a piston actuated as described above. Fig. 5 shows a further modification in which the vanes are so arranged that the turbine automatically selects that direction of rotation which gives the shortest path to the new selected position. The ports are shown arranged so that the impact of the fluid is exactly radial, but the construction may be modified for axial impact. The series of vanes may form a segment or be rectilinear. Fig. 8 shows a rectilinear arrangement in which two series of vanes are coupled by a pinion z<1> and by a cord &c. s<1> passing over the rollers. Only one supply pipe to each series is shown, but as many are used as there are vane chambers in each series. The two series of pipes move the pinion and rollers in opposite directions according to which series is used, and a reciprocatory movement is thus converted into an oscillatory movement. The diameter of the guide-rollers and the guiding of the cord s<1> determine the speed and directions of rotation of the shafts on which the rollers are mounted. Brake blocks r with abutments are provided. A perforated steel band s' may be connected with the part to be adjusted by a driving- member capable of engaging any of the holes in the band. The pinion s<1> may be dispensed with. In a modification, the direction of motion of a rectilinear vane series is determined by the side from which the fluid is admitted ; a single pipe at either side is provided. Fig. 10 shows a further modification, in which the rectilinear series of vanes includes two oppositely inclined sets. This construction like every other may be used with impact from different directions, and employs a closed vane chamber. The various forms of vane series may be used in multiple, either with the same or different forms. The Specification in the original form, as open to inspection under Section 91 (3) (a), comprises also a modification in which two segmental or rectilinear series of vanes are arranged side by side for actuation by separate pipes, and a further modification in which a segmental series of vanes moves in a circular path either continuously in one direction or alternately in both directions. In the latter case the series may be double-sided. A number of discharge pipes are provided, and the device is particularly adapted for signalling. This subject-matter does not appear in the Complete Specification as accepted.