Patent GB-191004748-A (GB)
Title: Improvements in Taxameters.
Inventor: JONES JOSEPH WILLIAM
IPC: G07B13/00
Filed: 1910-02-25
Granted: 1911-02-02
Abstract: 4748. Jones, J. W. Feb. 25. Taximeters.-In instruments provided with a mixed time-anddistance drive, a variable-tariff device, a minimumfare device, means for registering extras, and totalizing - counters, the total fare payable by the passenger is shown on a single set of registering - disks which are moved to the minimumfare position when the flag is lowered. Minimum fare.-The lost-motion device consists of a shouldered disk 88, Figs. 9 and 11<a>, carried by a wheel 87 loose on a shaft 51, together with a pin 89 carried by a disk 90 also loose on the shaft 51. The first fare disk on the shaft 51 is set forward to show the minimum fare, on lowering the flag in either direction, by a double rack 78, 79, Fig. 10, carried by a sector 77 mounted on the flag shaft 29. The racks gear with a pinion 80 on a shaft 76, which rotates the shaft 51 through a ratchet and pawl 84, 83, spur gearing 82, 87, and a pawl 99 engaging with a ratchet 98 on the shaft 51. The forward movement of the shaft 51 not only exhibits the minimum fare but also moves the shouldered disk 88 forward to give the required lost motion. Multiple-tariff.-The tariff-mechanism consists of different-sized gear-wheels 39, 40, Fig. 7, carried by pivoted arms 32, 33, the position of which is controlled by cams 30, 31, Fig. 4, on the flag shaft. The wheels 39, 40 gear with wheels 46, 45 which are secured together, the wheels in gear being determined by the right or left hand position of the flag. Mixed drive.-Motion is communicated from the vehicle wheel to a shaft 50 through worm gearing 43, 42 and a pinion 41 on the shaft 34 of the wheel 42. The pinion 41 is in gear with the wheels 39, 40, and these, through the pinion 46 and other spur and ratchet gearing, drive the shaft 50 The clock also drives the shaft 50, through spur-and-ratchet gearing when the flag is lowered, a wheel of the clock train being mounted on a bell-crank and being thrown into gear by a link and a cam on the flag shaft. Motion is communicated to the first shaft 51 of the registering-apparatus from the shaft 50 by a single tooth 64 engaging a loose wheel 66 which rotates the disk 90 through a pawl and ratchet 92, 91, Fig. 9. The disk 90 drives the shaft 51 through the pin 89, the shouldered disk 88, the pawl 99, and the ratchet 98 carried by the shaft 51. The extra fares are also added to the shaft 51 through a wheel 96, driven from the extras indicator, bearing a pawl 97 engaging the ratchet 98. The transfer between the dials is of the single-tooth type, each wheel being provided with a positioning-wheel and a spring arm. One end of each registering-shaft carries a totalizing-dial and the other drives the indicating-disks through pins 113, Fig. 9, engaging slots in spring-controlled sleeves 112. The ends of the sleeves are toothed to engage pins 115 on the shafts of the indicating-disks. The dials are revolved against springs frictionally mounted in drums 170, Fig. 4. Additional-charge registers.-The extras dials 123 are mounted in the same way and are actuated on rotating an external knob 92, a wheel 94 on the shaft 93 serving to rotate the shaft 51 through gearing 95, 96, Fig. 4. A bell 103 is sounded each time the extras dials are advanced. To zeroize the dials, a slide 109 is lowered by the depression of a knob 180, and inclines 110 on the slide move the sleeves 112 out of gear, and allow the dials to be zeroized by their springs, spring stops being employed at the zero position.