Patent GB-190707732-A (GB)
Title: Taximeter.
Inventor: ARON HERMANN
Filed: 1907-04-02
Granted: 1907-10-17
Abstract: 7732. Aron, H., and Runge, O. April 2. Fares, registering.-Taxameters are provided with apparatus whereby the adjustment to different tariffs and to the cash position is effected by a hand-wheel, and the disengagement from that position is effected by turning up the flag arm. The shaft 1, Fig. 1, of the hand-wheel extends right through the apparatus, and to it is keyed a disk 3, a tappet-wheel 8, and a square or polygonal frame 9 carrying rollers 10 at the corners. The tappetwheel 8, Fig. 3<c>, and frame 9 are preferably formed on a sleeve 17, which is secured to the shaft and is provided with a projection 18, Fig. 5<b>. The disk 3 is formed with teeth 4.and notches 5, 5<a>, Fig. 3<b>, with which engage pawls 6, 7; the pawl 7 is carried by the frame and the pawl 6 is pivoted at 14 to a disk 13, Fig. 3<a>, secured to a bush 12, loosely mounted on the shaft 1 and carrying the flag arm. Also secured to the shaft are a cam 11 and a disk showing the adjustment of the taxameter, the adjustments being regulated by a spring-controlled arm 23 engaging with the frame 9. When the hand-wheel 2 is turned to 'tariff 1' a pawl 15, engaging in a notch 15 of the disk 13, is lifted by the tappet-wheel 8 striking a pin 33 on the disk, thus allowing a spring 32, Fig. 1, to lower the flag shaft from an upright position to that shown in Fig. 3<a>. The hand-wheel is prevented from completing the quarter turn required until the flag arm is lowered by a pivoted arm 19, against which the projection 18 catches, and is freed when an extension 21 of the arm is raised by a pin 34 on the pawl 6. The return of the hand-wheel to the `free' position is prevented by the engagement of a pawl 7 with the teeth 4, and by the tappet 8 resting against the pin 33 on the pawl 15. The return of the flag is prevented. by the pawl 15 engaging in a notch 35 of the disk 13 and, when not turned down completely, by a pawl 24, which is brought into position to engage with a notch 36, Fig. 7<b>, by a cam 31, after the cam 11 has released the arm 28. After the first quarter-turn, the hand-wheel can be freely moved between the positions 'tariff 1' and tariff 2.' To bring the apparatus to the cash' position, the hand-wheel is rotated through another ninety degrees, the pawl 6 engaging in the notch 5 and rotating the cam 13, and thus the flag-staff, into the position shown in Fig. 4<a>. At the same time, the pawl 7 engages in the notch 5<a> and locks the hand-wheel. To adjust the apparatus to 'free,' the flag arm is turned back to the vertical position, thus rotating the cam 13 and the pawl 6 ; the pawl 7 is released by a projection 37 depressing a pin 38 on the pawl. The pawl 6 carries the disk 3, and thus the shaft 1, round to the original position and is released on striking a projecting piece 40. The cam 13 is freed from the pawl 15 on setting to 'cash' by the tappet-wheel 8, which strikes against a pin 33 thereon, and the pawl 24 is withdrawn by the cam 11. The fare-totalizer is situated at the side of the taxameter so as to be visible from the side of the vehicle without opening or otherwise moving the taxameter.