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1. 发明专利

GB104724A Improvements in Prepayment Gas Meters. 未知
公开(公告)号：GB104724A
公开(公告)日：1917-03-13
申请号：GB372716
申请日：1916-03-13
申请人： METROPOLITAN GAS METERS LTD , JOHN DANIEL FORSTER
IPC分类号： G07F15/00
摘要： 104,724. Metropolitan Gas Meters, Ltd., and Forster, J. D. March 13, 1916. Gas, supplying by meter.-In prepayment attachments for gas-meters of the type described in Specification 9411/02 in which a rotary member controlling the supply valve is adapted to be set back by an inspector, the secondary spindle is mounted so that it can be moved laterally out of engagement with the rotary member to effect the disconnexion of that member from the meter mechanism prior to the setting operation, the supply valve b is controlled by a disk d on a spindle e, on which are also mounted a wheel h and pointer f; the secondary spindle j carries a worm i gearing with the wheel h and a gear k driven by one of the index spindles l . The spindle j is mounted in a frame n, which is pivoted to the casing at n' and connected by links o to a hinged door g normally covering the pointer f and dial g. When the inspector opens the door g , the spindle is moved laterally and the worm i moved out of gear with the wheel h, and the disk d may then be set by turning the pointer f. The door g is secured by a lock p controlled by a key of the type described in Specification 104,725, [Class 44, Fastenings, Lock &c.].

2. 发明专利

GB191504984A Means for Indicating Leakage in Gas-meters. 未知
公开(公告)号：GB191504984A
公开(公告)日：1915-07-29
申请号：GB191504984D
申请日：1915-03-31
申请人： METROPOLITAN GAS METERS LTD , JOHN DANIEL FORSTER
IPC分类号： G01F15/00
摘要： 4984. Metropolitan Gas Meters, and Forster, J. D. March 31. Gas-meters.-A leakage indicator for a gasmeter comprises a curved graduated scale c carried by a pivoted arm f and moved past a fixed pointer l by a link i connected to the crank-pin j of the tangent f . The graduations of the scale commence alternately at the top and bottom and terminate at the middle of the scale, and the two sets are of different colours.

3. 发明专利

GB189923486A Improvements in Prepayment Gas Meters. 未知
公开(公告)号：GB189923486A
公开(公告)日：1900-11-24
申请号：GB189923486D
申请日：1899-11-24
申请人： FRANK WRIGHT S PRE PAYMENT GAS , JOHN DANIEL FORSTER
摘要： 23,486. Frank Wright's Pre-Payment Gas Meter Corporation and Forster, J. D. Nov. 24. Gas meters; money boxes.-The coin receptacle is a deep box b having a side aperture c to coincide with an aperture d in the side of the casing a of the prepayment mechanism, to which it is attached by pins e and f fitting into eyes g and h, while it is secured by a padlock in juxtaposed eyes i and j.

4. 发明专利

GB377827A Improvements in or relating to coin-freed gas meters 未知
公开(公告)号：GB377827A
公开(公告)日：1932-08-04
申请号：GB2416131
申请日：1931-08-27
申请人： JOHN DANIEL FORSTER , METROPOLITAN GAS METERS LTD
IPC分类号： G07F15/00
摘要： 377,827. Prepayment mechanism for gas meters. FORSTER, J. D. and METROPOLITAN GAS METERS, Ltd., Hyson Green, Nottingham. Aug. 27, 1931, No. 24161. [Class 27.] Coin action, thrust. -In a coin-freed gas meter in which, upon insertion of a coin into a coin holder carried upon a manually rotatable member, a driving connection is established between this member and a quantity wheel, a detent is arranged on the member in such a manner as to prevent backward rotation so long as a coin is in the coin holder and to relieve the parts effecting the driving connection of strain, if backward rotation is attempted. As applied to the coinholder mechanism described in Specification 342,254, the disc 15, Fig. 2, carrying the coin holder 21 has pivoted thereto at 36 a pawl 35 resiliently coupled by a spring 37 to the member 22 which is depressed by a coin to cause a tooth 23 thereon to engage the quantity wheel. When the member 22 is depressed, the spring 37 causes the tip 39 of the pawl to engage in inner surface of the surrounding casing which is provided with a series of depressions. Backward rotation is prevented, while the coin is in the holder, by the tip 39 engaging in one of these depressions, the strain being taken by the pawl and disc 15. In a modification, Fig. 5, the pawl 35 has a slot 46 engaged by an extension 47 of the member 22, with a certain amount of lost motion. When the member 22 is depressed the spring 37 causes the pawl to engage with the surrounding casing, but, when the coin is discharged, the extension retracts positively the pawl.

5. 发明专利

GB342277A Improvements in or relating to coin freed gas meters 未知
公开(公告)号：GB342277A
公开(公告)日：1931-01-23
申请号：GB3177130
申请日：1929-10-23
申请人： METROPOLITAN GAS METERS LTD , JOHN DANIEL FORSTER
IPC分类号： G07F15/02
摘要： 342,277. Prepayment mechanism for gas meters. METROPOLITAN GAS METERS, Ltd. and FORSTER, J. D., Hyson Green, Nottingham. Oct. 23, 1929, No. 31771/30. Divided on 342,254. [Class 27.] Fraud, preventing; coin action, thrust.-In a prepayment gas meter, in order to prevent fraudulent actuation bv a n instrument inserted through the coin slot 10, Fig. 1, in the front plate, the quantity ratchet wheel 16, that is rotated by a handle 6 through the medium of a coin, is engaged by a pawl 18 pivotally mounted on the rear wall of the casing 1 by a pin and slot connection 19, 20, and having at its front end an extension 22 sliding in a cam slot 24, 26 in the rear wall. When the wheel 16 is rotated clockwise to open the valve, the pawl 18 is retained in engagement with the ratchet teeth until the part 22 moves out of the cam slot portion 24, the enlargement 26 then allowing the pawl to disengage against the action of a spring 21. At the end of its forward movement after the coin is discharged, the pawl moves the wheel 16 in the reverse direction a distance determined by the length of the slot portion 24. This distance may correspond to one or more teeth of the ratchet wheel. If an attempt is made to move the wheel 16 one tooth at a time by an instrument inserted through the slot 10, the pawl 18 reverses the movement. The coin acts by engaging a ledge 11 on a sliding member which it depresses to cause a driving tooth thereon to engage the ratchet wheel.

6. 发明专利

GB190901914A Improvements in or connected with Prepayment Gas-meters. 未知
公开(公告)号：GB190901914A
公开(公告)日：1909-09-30
申请号：GB190901914D
申请日：1909-01-26
申请人： METROPOLITAN GAS METERS LTD , JOHN DANIEL FORSTER
IPC分类号： G07F9/06
摘要： 1914. Metropolitan Gas Meters, Ltd., and Forster, J. D. Jan. 26. Stud-and-slot fastenings.-The coin-receptacle b of a prepayment gas-meter &c. is attached to a guide-plate d on the meter casing by passing the enlarged lower portions of slots f over the heads of studs e on the plate, and then lowering the box until the necks of the studs engage the narrow upper portions of the slots. The box is secured in this position by a spring tongue h, which snaps into a recess g in the guide-plate. The tongue is withdrawn, to permit the removal of the box, by means of a key m, Fig. 5, which is inserted through a tube l and screwed on a threaded stud i projecting from the tongue.

7. 发明专利

GB190823531A Improvements in Packing the Spindles of Gas-meters. 未知
公开(公告)号：GB190823531A
公开(公告)日：1909-04-29
申请号：GB190823531D
申请日：1908-11-03
申请人： METROPOLITAN GAS METER LTD , JOHN DANIEL FORSTER
摘要： 23,531. Metropolitan Gas Meters, and Forster, J. D. Nov. 3. Stuffing-boxes, substitutes for. - A gas-meter spindle is packed by a washer pressed on to a bushing by a spring. This packing may be in addition to'the usual stuffing-box. In the arrangement shown in Fig. 1, a leather or other washer e is pressed on to a seating on the casing by a spring f on the spindle acting between a metal washer h pressing on the packing e and a washer g bearing on a collar g on the spindle. In a modification, the packing-washer is secured to a sleeve loose on the spindle.

8. 发明专利

CA361179A TRENCHING PLOUGH 未知
公开(公告)号：CA361179A
公开(公告)日：1936-10-13
申请号：CA361179D
申请人： BROCK ROBERT ELLIOTT , BROCK DANIEL FORSTER , BROCK GEORGE EDWARD
发明人： BROCK GEORGE EDWARD , BROCK DANIEL FORSTER , BROCK ROBERT ELLIOTT

9. 发明专利

GB352616A Improvements in or relating to coin-freed gas meters 未知
公开(公告)号：GB352616A
公开(公告)日：1931-07-16
申请号：GB1432630
申请日：1930-05-09
申请人： METROPOLITAN GAS METERS LTD , JOHN DANIEL FORSTER
IPC分类号： G07F15/00
摘要： 352,616. Prepayment mechanism for gas meters. METROPOLITAN GASMETERS, Ltd. and FORSTER, J. D., Hyson Green, Nottingham. May 9, 1930, No. 14326. [Class 27.] Testing coins; coinslit closing-devices.- Mechanism for use in gas meters and shown applied to the coin mechanism described in Specification 338,231, [Class 27, Coin-freed apparatus &c.], comprises an abutment member 21, 23, which normally obstructs the passage of a coin into the coin holder and is pivoted to a slide 14, movable by an inserted coin, to ensure that it is moved out of the path of the coin only when this is of a predetermined diameter. The slide 14 is spring-controlled and is slidable in a pocket 11 which is slotted at 22 to receive the obturating portion 21 of the member 21, 23. A correct coin inserted in the slot depresses the slide 14 whereby a cam surface 21a on the obturator 21 engages an edge 27 of one of the slots 22 so as to rotate the member 21, 23 in the direction of the arrow " a " permitting the entry of the coin. Coin-discharging mechanism.-When the coin holder is rotated, the limb 23 engages a stop 28 which moves the member 21, 23, a little farther to release the coin which falls through an opening 29 in the casing.

10. 发明专利

GB292780A Improvements in gas-meters 未知
公开(公告)号：GB292780A
公开(公告)日：1928-06-28
申请号：GB1798827
申请日：1927-07-06
申请人： METROPOLITAN GAS METERS LTD , JOHN DANIEL FORSTER
IPC分类号： G01F3/22
摘要： 292,780. Metropolitan Gas Meters, Ltd., and Forster, J. D. July 6, 1927. Gas meters.-In a dry gas meter of the diaphragm type the resistance to the flow of gas is lessened by connecting the gas inlet b by a passage n arranged above the valve plate d to the usual passage j arranged below the valve plate and communicating by an opening l with the valve chamber i and also by connecting the gas outlet c by a passage n arranged above the valve plate with the usual passage j arranged below the valve plate and connected by passages m to the exhaust ports of the valves. Large openings q, r connect the passage j , j with the inlet b and outlet c respectively.

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