Patent GB-873313-A (GB)
Title: Improvements in lighters
IPC: F23Q2/16
Filed: 1958-02-28
Abstract: 873,313. Liquefied gaseous fuel cigarette lighters. SOC. D'ETUDES ET DE RECHERCHES TECHNIQUES. Feb. 28, 1958 [March 1, 1957], No. 6599/58. Class 75(3). In a liquefied gaseous fuelled lighter in which a single control element rotates the sparking wheel of an ignition mechanism and operates a member to open the gas outlet of the lighter, the control element is articulated to the member controlling the valve and is maintained by a spring in an initial position with the member so mounted on the lighter that, when the control member is moved to operate the lighter, the control element and member first move in unison, the member opens the valve and thereafter the control element moves against the spring relative to the member and rotates the sparking wheel. In the arrangement shown in Fig. 1 the spark wheel 4 is carried by a spindle 15 mounted in wings 13a of a U-shaped member 13 and movably mounted in a support 7, provided with a hook end 8 engaged beneath a collar 9 of the burner 3, pivotally mounted on a V-shaped portion 10 formed thereon and resting on the top of the reservoir 1. The end of the support 7 remote from the V-shaped portion 10 carries a leaf spring 22 which rests on top of the reservoir 1. The U-shaped member 13 and the support 7 are held together by a nut 19 on the flint spring casing 14a located with a large clearance in a recess 21 of the reservoir 1. The flint wheel 4 is driven by a known uni-directional drive through arms 16 pivoted at one end of the spindle 15 and at the other end at 15a on a push piece 6. The rear end of the push piece 6 is supported by a link 12 pivoted at one end to a spindle 17 on the push piece 6 and at the other end on a spindle 18 mounted in the wings 13a. The push piece 6 is biased to the inoperative position by a coil spring 11 surrounding a spindle 11 a engaged at one end in an aperture in a bent portion 6a of the push piece 6 and at the other end in an aperture, and through the intermediary of an hemispherical collar 11b in a bent portion 13b of the U- shaped member 13. The operation of the lighter is as follows. The push piece 6 is depressed and, since the coil spring 11 is stronger than the leaf spring 22, the support 7 is tilted about the V-shaped portion 10 to lift and open the burner 3. When the spring 22 is sufficiently depressed the push piece 6 is moved downwards on to the support 7 to rotate the flint wheel 4 and thus ignite the gas emanating from the burner 3. In a modification of the above arrangement, Fig. 4 (not shown), the V-shaped portion of the support 7 rests on the reservoir 1 on the other side of the burner 3' and the burner is pushed downwards to the open position. In a further modification, Fig. 5 (not shown), the end of the support 7 adjacent the burner 3 is pivoted on a pin attached to the lighter casing and the burner 3 is pushed downwards to the open position. The lighter casing comprises two halves 28, 29, Fig. 2, telescoped at 28a, 29a, one into the other. In a variation of the arrangement of Fig. 5 (not shown), the support 7 engages the pin by means of a fork so that on removal of one half 29 of the casing the ignition mechanism can be pivotally removed from the other half 28 of the casing. In yet a further embodiment shown in Fig. 7 the support 7 is supported on the top of the reservoir 1 by two springs 24, 25 and the burner 3a is pushed downwards to the open position. The burner 3a is closed by its own spring. In this embodiment the flint 5 is held against the wheel 4 by a spring 20a through an arm 30 pivotally mounted in the wings 13a. In a modification, Fig. 8 (not shown), the collar 11b of the spindle 11 bears against an upturned end of the pivoted lever 30 to press the flint 5 against the wheel 4. In the embodiment shown in Fig. 9 the support 7 is carried by a link 26 pivotally attached at one end to the lighter casing and a link 27 pivotally attached to the top of the reservoir 1 and forming a continuation of link 12. The burner 3b is pushed downwards to the open position and an aperture 8b is provided in the support 7 of the flame. The support 7 rests on the top of reservoir 1 through the intermediary of a spring 22b.