Patent GB-191205062-A (GB)
Title: Improvements in Appliances for Lighting Gas.
Inventor: ANDERSON HENRY
Filed: 1912-02-29
Granted: 1912-10-17
Abstract: 5062. Anderson, H. Feb. 29. Lighting burners by frictional devices.-Relates to the type of apparatus in which, by pulling a cord, the gas cock is turned on and a frictional igniter is actuated which ignites a flash pilot jet. The invention is an improvement on that described in Specification 10,285/11. The operating-cord 2 works in a flexible tabe 3, Fig. 14, consisting of closely coiled wire, and is attached at 7 to a switch lever 4, The tube 3 may also be attached to the lever to serve as a return spring. In one form, Fig. 1, the cord 2 is attached to a hook 9, pivoted on the end of the gas-cock lever 10, and engaging the end of a spring 11. The sparking-device is adjacent to a pilot jet 20, and comprises a wheel 18, a co-axial ratchet-wheel, and a ratchet 15 on the end of a flexible rod 13, which engages the spring 11 by means of a loop 14, and has a head 12. On pulling the cord 2, the lever 10 and the hook 9 are lifted, carrying with them the spring 11 and the rod 13. When the hook 9 strikes a tappet 17, the spring 11 is released, strikes the head 12, and thus operates the friction wheel 18 by means of the ratchet 15. In a modification, Fig. 2, the gas cock 1 is operated by means of a rack 24 attached to the cord 2 and carrying the pivoted hook 9. In another form, the cord 2 operates the gas-cock lever by a pin-and-slot connexion, and a tension spring 25, Fig. 4, is attached to the top of the casing 26 of the igniter, and is connected to a grooved wheel 27 which turns freely on the axle of the ratchet-wheel 16. When the wheel 16 is operated, a spring catch 29 engages the wheel 27 until released by a projection 30. The spring 25 then operates the file-wheel 18 by means of the wheel 27 and catches 31. The wheels 16, 27, 18 may all be fixed on the one axle, and the ratchet 15 at the end of its upward movement then releases the ratchet wheel and allows the spring 25 to operate the file wheel 18. A spring guide 22, Fig. 6, prevents the rotation of the wheel 16 on the return movement of the ratchet 15. Instead of a file-wheel, a flat file may be used, which is attached at the end of the flexible rod 13. In another modification, Fig. 7, the friction wheel 18 is rotated by means of a flexible shaft 34 secured to the axle of a grooved wheel 39, which turns freely on the axis of a wheel 35 mounted on the gas cock 1. The wheel 35 is operated by the cord 2, and has a catch 40 engaging the wheel 39. When the catch 40 is released by a pin, the wheel 39 and the flexible shaft are rotated by a spring 38. In the form shown in Fig. 9, the flexible shaft is attached directly to the wheel 35, and operates the file-wheel by means of a spring 44, which is secured to a case 43 on the shaft, and to the filewheel. The spring is wound up, and then released by the device shown in Fig. 10. A wheel 45 on the flexible shaft 34 has a flat spring 47 secured thereto at one end, and a pin 48 on the spring projects through a hole in the wheel 45 and engages the file-wheel 18. On passing the edge of the frame 46, the spring 47 is released, the pin 48 is withdrawn, and the file-wheel is rotated by means of the spring 44. Fig. 12 shows the arrangement for momentarily admitting gas to the by-pass when the igniter is operated. A cam 58 on the gas cock engages a pin 57 on the spring-controlled valve rod 52. The pin 57 works in an L-shaped slot in the valve casing, and when the cock is turned off, the pin is moved out of the way by the cam and then returned by the torsional action of the spring.