| 摘要 |
1,179,132. Counting apparatus. ROCKWELL MFG. CO. 9 May, 1967 [9 May, 1966], No. 21525/67. Heading G4D. A meter is adjustable so that either of two tax-rates or no tax can be charged. As applied to a mobile fuel dispenser, knob 26 adjusts shaft 130 before a dispensing operation to a standard tax rate (4%) in which clutch 71, Fig. 3, engages gear 73, a higher tax rate (6%) in which the clutch engages gear 75, or tax-free in which clutch 71 is disengaged and a worm drive 61, 62 is also disengaged by link 134, Fig. 7, pulling link 144 so as to cam bell-crank 172 clockwise about its pivot 69. In tax-free position the drive passes directly along shaft 59 through gears 87, 88, 85 and differential 82 to gross sale indicator and printer 104 and a totalizer 95. In either of the tax rate positions an appropriate percentage is computed by worm drive 61, 62 and selected gear 73 or 75 to be added to the standard price in differential 82 and transmitted through gearing to tax indicator and printer 120 and totalizer 127. When a dispensing operation is complete knob 22 on shaft 190 is oscillated. The first movement effects printing followed by resetting of indicators 104 and 120. The return movement causes nose 206 of cam 196 to swing hammer 214. If knob 26 has been set to tax-free or 6% tax position then pin 202 or 204 will be struck by the hammer to return shaft 130 to its intermediate (4%) position shown in Fig. 7. Cam 186 prevents knob 26 adjusting shaft 130 except when shaft 190 and therefore knob 22 are in home position. |
