Patent GB-191011083-A (GB)
Title: Improvements in or relating to Taximeters.
Inventor: MACPHERSON JOHN GREENLEAF
IPC: G07B13/00
Filed: 1910-05-04
Granted: 1911-03-23
Abstract: 11,083. MacPherson, J. G. May 4. Counters with recording apparatus. - The fare-indicating and printing disks of a taximeter are electrically actuated from the clock. When the vehicle is engaged, the key shaft 7 is rotated so that a crank 8<1>, Fig. 3, simultaneously engages a contact-plate 15, a spring plate 17 being in constant engagement with the end of the shaft 7. The crank 8<1> also moves, through a lever 8 and arm 19, the main shaft 20 causing a pointer to indicate the initial fare. By means of gear-wheels 22, 23, two type-wheels 28, 29 are set to print the initial fare on a record strip B, Fig. 8, and a receipt tape C. These wheels 28, 29 may be arranged to print cents; other wheels 30, 31 print the dollars and have gear-wheels intermeshing with a gearwheel E upon a shaft F carrying a gear-wheel for operating the dollar - indicating disk. At the re-setting-operation, an arm 127, Fig. 8, on the shaft 7 engages a collar 129 on a vertical shaft and, through links 131, 132, rocks a shaft carrying platens J, K. As a catch on the arm slips past the collar 129 the platens are actuated to print the fares on the record strip B and on the receipt strip C. The spools carrying the paper strips are rotated from the bevelwheels 135. Counters actuated by electric means. - The dollars and cents wheels are actuated as follows. The shaft 33, Fig. 16, mounted in the frame of the clock also carries an arm fitted with a metal pin 37. When not registering, the pin 37 is in contact with and moved by the contact 6. The engagement of the contact 6 with the pin 37 closes a circuit, shown diagrammatically in Fig. 12, to energize a magnet 44, which attracts its armature to bring together two points 50, 51. This closes a circuit through a magnet 53, which attracts an armature 59, Fig. 4, so as to actuate, through levers 60, 61, 62, Fig. 5, a pawl 65, for driving the initialfare ratchet 66. When the ratchet 66 has been moved five teeth, it allows the pawl to engage the wheel 67, which is keyed to the sleeve of the type-wheel 28. The pawl 65 simultaneously moves an arm 70, which rocks a shaft 71 having a finger 72, Fig. 16. The finger 72 engages a pin on the arm 74 of the pawl 75, which moves the ratchet 34 one tooth at a time. This separates the point 6 from the pin 37, ensuring that the operation of the electric circuits is momentary. If the pin 37 is moved before the indicating - mechanism is fully operated, an auxiliary circuit is closed by the contact of the plate 80, Fig. 5, mounted on a pawl 78, which is moved by the pawl 65 and a spring arm 81, Fig. 2. Another plate 87 is brought into a contact with a spring arm 89 to close a second circuit when the initial - fare ratchet 66 has been moved five teeth. These circuits again energize the magnet 53. Transfer mechanism. - When the shaft 20, Fig. 3, has completed one half-revolution, an arm 91, Fig. 4, engages the upper end of an insulated lever 92 and causes the lower end thereof to close a switch 93. This energizes a magnet 97, Fig. 3, which, through its armature 102 and levers 104, 104<1>, rocks a shaft 64, Fig. 4, carrying an arm 105. The arm 105 carries a pawl 106, to actuate the dollar typewheels, and an overthrow-preventing pawl 108. When the link 104 is raised, a pin 109 thereon engages a pivoted arm 110 to rock a shaft 111, and thereby to actuate a pawl 78, Fig. 5, and so free the ratchet 66 in order that the cents wheel may be returned to zero by the spring on its sleeve. Zeroizing - mechanism. - When the signal is returned to the for hire ' position, the crank 8<1> on the shaft 7 is released from the plate 15 and engages a lever 121, one end b of which, through links 123, 124, rocks a shaft 125. This shaft then pushes a flat spring 38 from the ratchet-wheel 34 to permit the shaft 33 to be rotated with the arbor of the clock. The wheels 27 ... 31 have springs which zeroize them upon release.