GB189712454A - Improvements in and Relating to Prepayment Meters. - Google Patents
Improvements in and Relating to Prepayment Meters.Info
- Publication number
- GB189712454A GB189712454A GB189712454DA GB189712454A GB 189712454 A GB189712454 A GB 189712454A GB 189712454D A GB189712454D A GB 189712454DA GB 189712454 A GB189712454 A GB 189712454A
- Authority
- GB
- United Kingdom
- Prior art keywords
- quadrant
- lug
- cock
- rack
- fellow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Magnetically Actuated Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
12,454. Silberberg, S. May 20. Gas meters; liquid meters.-In this apparatus keys of different values are used instead of coins. The amount of fluid to be delivered is determined by the angular separation in the circuit of an electromagnet of electric contacts on a pair of discs h<3>, g', the former of which is on a shaft geared to the meter index mechanism, while the latter is on a sleeve bearing a ratchet-wheel g<6>, the driving-lever of which g<8> is in gear with a rack f moved by hand after prepayment as follows:-A second rack c, bearing a lug c<6> and a U-piece which ends with a fellow opposite lug, can be moved backwards by turning a shaft below, and is returned by a spring on the guide-rod c<3>. The lug c<6> is hidden in the Figure by a finger f<2> projecting down from the first rack in front of it. The controlling-cock a<3> in a U bend of the supply pipe carries a heavy quadrant a<4> furnished with a cross-pin a<6> and an arm which hangs between the lug c<6> and its fellow when the cock is closed. An external rotary horizontal plug d pierced by a keyhole d' and provided with an internal radial bolt d<3> ends within the casing in a wing d' which contains a pawl engaging the arm of the quadrant. On inserting one of the keys, the cam-groove k thereon lifts the internal bolt d, and on turning it a quarter of a revolution the notches k<2>, k<1> take over the lug c<6> and its fellow respectively, and along with the former the finger, thus locking the two racks together while at the same time the wing d<7> gets clear from the arm of the quadrant. A click o prevents the key from reversing. As the shaft is now turned by hand to separate the electric contacts, the key thrusts the quadrant round until its pin a<6> lodges upon a hook e when the cock is fully open. When the operation of the meter has reclosed the gap in the circuit, an electromagnet e<2> disengages the hook so that the quadrant falls to close the valve and break the circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB189712454T | 1897-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB189712454A true GB189712454A (en) | 1898-05-20 |
Family
ID=32536796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB189712454D Expired GB189712454A (en) | 1897-05-20 | 1897-05-20 | Improvements in and Relating to Prepayment Meters. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB189712454A (en) |
-
1897
- 1897-05-20 GB GB189712454D patent/GB189712454A/en not_active Expired
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