Patent GB-186351-A (GB)
Title: Improvements in apparatus for registering the times of arrival of carrier pigeons, runners, aeroplanes or the like
IPC: G07C1/26
Filed: 1922-09-25
Abstract: 186,351. Bauhain (nÚe Papayanni, Y.), P. Sept. 26, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Time-checking apparatus, check and token; preventing tampering; recording opening of casing.-Relates to apparatus for timing the arrival of carrier pigeons, runners, aeroplanes, &c. and consists in an arrangement whereby on the actuation of a pull button, after the insertion of a ring, the clockwork mechanism is displaced to cause the pointers indicating the time to perforate or record the time on apertured dials marked on a paper disc. Means are also provided for recording by perforation of the record disc the opening of the casing and for preventing tampering with by shaking. The pigeonring is inserted in a central aperture a and falls into one of the six compartments of a drum 12 which is divided into seven parts one being blocked up; the drum is under the control of a spring 14 and a dial carrying plate 6 integral with which is a six-toothed wheel 8 and a toothed wheel 7 gearing with a wheel 16 on the drum spindle. The plate 6 is held by a catch 4 engaging one of six notches 5 in the flange of the plate 6 and which is adapted to be released, to allow the drum to rotate, by pulling out the button 1 attached to the lever 2 pivoted at 3. In operation the teeth of the wheel 8 act on a pawl 22 carried by a lever 24 which is moved thereby so that a pivoted arm 26<1> is caused by means of its hooked end 28 to engage a pin 29 passing through the plate 10 and mounted on a quadrant 30 which on the return of the lever 24 under the control of a spring 31 raises the clockwork mechanism 35 by means of the inclined projections 32-34 and causes the pointers which are flexibly mounted by means of members k to perforate the edge 39 of the apertured dials marked on the record disc 38. The plate 6 is reversely rotated to enable the pigeon rings to be removed. Instead of using opaque paper for the record disc a transparent disc with graduated dials may be employed. The opening of the casing is effected by means of a button m which carries pins o that on rotation separate a pair of hooks n normally engaging projections on a member p secured to the lid of the casing. At the same time a plate o on the spindle of the button m is rotated and a camslot therein rocks a lever s and causes a punch u to perforate the record disc. Additional security if desired is provided by means of a wire which passes through an aperture in the button m and through a staple on the casing, the ends of the wire being secured by a seal. To indicate any fraudulent movement for the purpose of accelerating or retarding the time movement a balance 53 is provided which carries a pin adapted on such movement to rock a spring-controlled lever 49 to actuate a ratchet-wheel 46 provided with a pointer 48 associated with a fixed dial. The clockwork movement is stopped during the perforating operation by a spring 60 on an arm 58 lightly engaging the balance wheel 61, the balance being released on the return of the arm 26<1> to normal position. A pinion 43 on the winding spindle 44 of the clock gears with a pinion 42 carrying a pointer to indicate the days of the week. The time indicating pointers are returned to zero by a lever and the usual heart-shaped cams.