baber/WOPTO huggingface dataset:
Patent GB-874967-A (GB)
Title: Weighing machine apparatus
Inventor: HALLAM THOMAS BERTRAM
IPC: G01G11/00
Filed: 1958-09-12
Abstract: 874,967. Weighing apparatus. SPERRY GYROSCOPE CO. Ltd. Sept. 14, 1959 [Sept. 12, 1958; June 17, 1959], Nos. 29350/58 and 20846/59. Class 143 Weighing apparatus comprises a weight sensitive load receiving device associated with an endless flexible conveyer and mechanism whereby, on the arrival of a load carried by the conveyer at a pre-determined position, the relative positions of two members supporting the conveyer are so adjusted that the conveyer is slackened to apply the weight of the load together with part of the conveyer to the load receiving device. The load receiving device may be a check weighing unit such as the apparatus disclosed in Specification 630,075. In the form shown in the Figure accompanying the second Provisional Specification, a weighing unit 8 has a load supporting platform 16 surrounded by an apertured rectangular stripper plate 7 and disposed below the conveyer 1. The conveyer is driven by a motor 12 through a one revolution clutch 11 so arranged that each operation of clutch 11 effects the transport of a load such as package P fed to a predetermined point on the portion 9 of the belt to a position over the weighing platform. A photo-electric cell 15 may initiate this transport which is followed by the automatic engagement of a second one revolution clutch 13 which lowers the stripper plate 7 and with it the rollers 2, 3 supporting part of the belt 1. This action slackens the belt to lower the package P on to the platform 16 where its weight is indicated or checked. Another form of belt slackening mechanism is shown in the automatic feed weigher described below. The one revolution clutches may be omitted and the belt driven directly by a motor started and stopped by photo-cell arrangements at the feed-in and weighing positions respectively, that at the latter position also initiating the descent of the stripper plate. Sorting by weighing. A check weighing signal provided by a mercury switch associated with the platform 16 also initiates a pusher bar mechanism (not shown) to reject unrerweight packages. Automatic feed weighers. In the form shown in the Figure of the first Provisional Specification a dough dispensing device 1 feeds portions of dough from a shoot 4 on to the belt 5 which is intermittently advanced by a sprocket wheel 8 engaging slots in the conveyer and driven by a motor 6 so as to convey dough pieces in steps from the dispenser to a position above the weighing unit 7. At each stop of the conveyer a cam 9 is rotated to displace wheel 8 and slacken the belt to weigh the dough. Small make-weight pieces of dough, normally passing from chopper unit 18 via tube 19 back to dispenser 1, are allowed to fall on to the piece being weighed by the opening of door 21 whenever mercury switch 12 fails to be closed by the descent of the weigh platform, the door being automatically re-closed when the desired weight for the piece is achieved.
Patent GB-639805-A (GB)
Title: Improvements in or relating to storage bins
IPC: B65D88/74
Filed: 1947-11-04
Abstract: 639,805. Storage bins. PARKER, Ltd., F., and PARKER, F. W. Nov. 4, 1947, No. 29395. [Class 20 (i)] A storage bin has the lower edges 6, Fig. 1, of its converging side walls 2 spaced from a trough 8 to provide an outlet for water draining from the stored material. The trough 8 which extends the length of the bin, is slightly inclined and provided with discharge piping 10. The material e.g. stone or gravel, is discharged through funnel doors 11, Fig. 4, secured to the trough 8 and having upper walls 14 projecting upwardly into the bin to prevent the water passing therethrough. In a modified form for storing sand the side walls 151, Figs. 5, 6 (not shown), have gaps 17 leading into ducts 16 and provided with adjustable weir plates 18 over the top of which water in the trough must flow to reach the ducts 16. This prevents sand carried to the trough by the water reaching the ducts. Alternatively the trough may be arranged above a drain gutter, with the side walls of the trough themselves acting as a weir.
Patent GB-380280-A (GB)
Title: Improvements in shrouding caps of sparking-plugs
IPC: H01T13/05
Filed: 1931-10-23
Abstract: 380,280. Two-part couplings. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. Oct. 23, 1931, No. 29413. Convention date, Nov. 14, 1930. [Class 38 (i).] Sparking . plug couplings s are shrouded in metal to prevent the emission of electromagnetic waves and ventilated by passages 18, 19. Insulation 12 lines the metal shroud 11.
Patent GB-738743-A (GB)
Title: Method of and means for the sterilization of draw-off taps or cocks for sterile liquid
Inventor: ROTHWELL ERNEST
IPC: F16K11/20
Filed: 1951-12-17
Abstract: 738,743. Valves. THACKRAY, Ltd., C. F. March 17, 1953 [Dec. 17, 1951], No. 29476/51. Class 135. [Also in Group VI] A draw-off tap or cock through which sterilizing fluid is passed prior to the passage of sterile liquid therethrough (see, Group VI) comprises a body portion 1 adapted for connection to a supply of sterile liquid 9, a bore 11 within the body for the passage of sterile fluid communicating with an outlet nozzle 3 provided on the body portion, a plunger 19 slidably mounted within the body portion having a valve 13 at one end for closing engagement with a seating 12 on the adjacent end of the bore, to interrupt the passage of sterile fluid through the bore, a flexible diaphragm 22 at the opposite end of the plunger, means operable to effect movement of the diaphragm to slide the plunger in a direction to lift the valve or washer from its seating to permit the passage of sterile fluid through the tap or cock, and an opening or openings 44 in the body of the tap or cock adapted for connection to a supply of sterilizing fluid or medium. As shown, attached to one end of the main tubular body 1 is an extension piece 2 provided with the discharge nozzle 3 and housing a spigot 14 carrying a washer 13 held against seating 12 by a spring 16 and being released therefrom by movement of a rod 19 mounted in a tube 11 through which flows sterile liquid from a chamber 9 fed from 10 on pressing a pedal 32 which depresses a diaphragm 22 to which the other end of the rod is connected. A tube 41 provided in the body portion connects an inlet 44 for admission of sterilizing liquid with the extension piece and nozzle. In a modification (Fig. 2, not shown) instead of the foot-pedal mechanism there is provided a link mechanism which when pulled causes the diaphragm to be pressed inwardly. As shown in Fig. 3 a modified conventional "screw-down " tap is provided with a valve-controlled inlet 59 for sterilizing liquid on the outlet side of washer 51 which is mounted on the end of a screw-down plunger 48 rotatable by a handle 49 to adjust its position with reference to the seating 52 to allow the passage of sterile liquid through pipe 54 to the nozzles.
Patent GB-700917-A (GB)
Title: Improvements in or relating to television broadcasting systems
IPC: H04N7/08
Filed: 1950-12-01
Abstract: 700,917. Television. RADIO-INDUSTRIE. Dec. 1, 1950 [Jan. 10, 1950], No. 29478/50. Class 40 (3). [Also in Group XL(c)] A television broadcasting system comprises a pair of vestigial sideband video transmitters with their unattenuated sidebands overlapping, their video carrier frequencies V1, V2, spaced apart the useful width of a video band, and the corresponding sound carriers Si, S2 spaced from the remote ends of the respective full sidebands. Absorption circuits are provided at the transmitters for the frequencies G1, G2 corresponding to the sound carrier of the other transmitter. Superheterodyne receivers are employed with local oscillators tunable to two different frequencies to selectively receive either one or the other of the programmes (in one case the frequency band being inverted), so that in each alternative case the video and sound carriers respectively occupy the same position in the intermediate frequency band. Rejection of the undesired video carrier, say V2, and of the sound carrier S1 of the desired programme is effected by rejector circuits in the intermediate frequency channel, and rejection of the sound carrier S2 of the undesired programme may take place in the preceding high frequency stages.
Patent GB-1168596-A (GB)
Title: Wire Mesh Reinforced Sheet Material
IPC: D21F11/00
Filed: 1968-06-20
Abstract: 1,168,596. Wire-mesh-reinforced laminates. AVI ALPENLANDISCHE VEREDELUNGSINDUSTRIE G.m.b.H. 20 June, 1968 [29 June, 1967], No. 29511/68. Heading B5N. A wire-mesh-reinforced sheet material comprises a sheet 1 of flexible material interposed between transverse wires 2 and longitudinal wires 3 of crossed mesh, which wires are welded at their crossing points 4 through local perforations in the flexible material; the longitudinal wires 3 comprise individual parallel wires and the transverse wires 2 are formed by continuous wire looped as shown, the loops projecting beyond the outermost longitudinal wires, and optionally beyond the edges of the flexible sheet. The sheet 1 may comprise paper, polyethylene or polyvinyl chloride, and the mesh may be of steel and may be resilient or deformable. The material may be made by feeding an imperforate strip of flexible material into a multi-point mesh welding machine wherein provision is made for application of the transverse wires as a looped continuous wire. The sheet is perforated as the longitudinal and transverse wires are welded together. The perforations, although partly sealed by the metal weld, may be completely sealed by plastics cement or a strip of plastics material.
Patent GB-1396352-A (GB)
Title: Apparatus for reproducing quadraphonic sound
IPC: H04S3/02
Filed: 1972-06-23
Abstract: 1396352 Quadraphonic systems CBS Inc 23 June 1972 [23 June 1971] 29584/72 Heading H4 A decoding matrix, Fig. 2A, for quadraphonic signals coded by the arrangement described in Specification 1,387,874, producing L T  and R T  signals as shown at 38 and 40; derives four signals 90, 92, 94, 96, containing respectively predominant L # , Lb, Rb and R #  in a conventional fashion using phase shift networks 46 to 52 and adders 70, 72, as described in Specifications 1,387,874 and 1,379,771. The signals L<SP>1</SP> #  and R1 #  are each combined with a minor proportion of the other signal in adders 98, 100, to produce the signals L<SP>11</SP> #  and R<SP>11</SP> #  for reproduction at the front corners of the listening area. Similarly the signals L<SP>1</SP>b and R<SP>1</SP> b  are each combined with minor proportions of the other in adders 102 and 104 to produce the signal L<SP>11</SP> b  and R11 b  for reproduction in the rear corners of the listening area. Gain controlled amplifiers 74-80, are provided to feed the reproducers and are controlled by the logic circuit, Fig. 2b. The major portion of the logic circuit is similar to that described in Specification 1,387,873, and comprises a wave matching logic, producing at the output of difference circuit 172 a signal indicating predominance of front left or right signals by one polarity of output and predominance of rear left or right signals by the other polarity of output. In addition adders 190, 192 and difference circuit 206, which are similar to the "front-back" logic circuit of Specification 1,387,874, provide discrimination between a front centre signal and a rear centre signal to provide an appropriate output signal at 208. Signals at 208 above a predetermined threshold defined by diodes 210 and 212, are applied to adder 176, together with the output of the other logic circuit from 174, to provide gain switching potentials on lines 179 and 181 which differentially vary the gains of the amplifiers feeding the front speakers relative that of the amplifiers feeding the rear speakers.
Patent GB-1092426-A (GB)
Title: Invertor
Inventor: SAKOVICH ANATOLY ALEXEEVICH
IPC: H02M7/516
Filed: 1965-07-13
Abstract: 1,092,426. 8CR inverter oscillators. VSESOIUZNY ELEKTROTEKHNICHESKY INSTITUT IMENI V.I. LENINA. July 13, 1965, No. 29616/65. Heading H3T. [Also in Division H2] An inverter has two inductors 5, 6, a capacitor 3 and the primary 7 of a saturable transformer 8 connected in series across a D.C. source c, d. In operation, the capacitor 3 is charged from the D.C. source and the series circuit attempts to oscillate. Flux reversal occurs in the transformer 8 at a moment determined by the bias current in winding 11 and the resulting pulse developed in winding 9 fires the thyristor 1 which discharges the capacitor 3. A series capacitor 4 in the output circuit protests the inverter from overload. The resonant circuit may ring so that a higher output voltage is obtained.
Patent GB-381353-A (GB)
Title: Improvements in or relating to calendars
IPC: G09D3/10
Filed: 1931-10-26
Abstract: 381,353. Calendars. HOARE, P. V., 30, Rusthall Avenue, London. Oct. 26, 1931, No. 29643. [Class 106 (iv).] A perpetual monthly calendar comprises a set of seven indicating strips each strip bearing a number of date figures and adjustably positioned in a frame or holder on which is inscribed a set of day names the arrangement of the indicating strips being such that they display all the days of any month and no more and all members are in use at any time. In the form shown in Fig. 1, a frame 1 is provided with a glass or other transparent cover 2, a U-shaped margin piece 3 marked with the day names, and a backing piece 4 with a hinged flap 6 which may be turned to afford access to the date strips. These strips 8, Fig. 2, are seven in number with markings as shown, the reverse side of the strips bearing the numbers 1, 2, 3 having additional markings as shown in Fig. 3. The strips are placed in any desired order in the recess of the margin piece 3 with the number 1 against the name of the dav on which the month commences.
Patent GB-333438-A (GB)
Title: Improvements in or relating to field control systems for alternating current generators intended to operate on long transmission lines
IPC: H02H7/06
Filed: 1929-10-01
Abstract: 333,438. British Thomson-Houston Co., Ltd., (Assignees of Bany, H.). Oct. 1, 1928, [Convention date]. Regulation, automatic; network charging arrangements.-An alternator associated with a long transmission line is automatically supplied with diminished excitation when about to be switched on to a de-energized line so that an excessive generator voltage cannot be built up by the charging current. The exciter 5 coupled to the alternator 1 has a Tirrill regulator 7 with an antihunting exciter coil 11 and alternator voltage coil 10, and a rheostat 12 is moved so as to increase field resistance with falling exciter voltage and vice versa by a contact voltmeter 16 responsive to exciter volts. With the alternator switch 3 open a relay 20 responsive to the voltage on the line 2 energizes the field 15 of the rheostat motor to insert all resistance in the alternator field circuit when the line 2 is dead, but when the line is alive the field 14 of the rheostat motor removes a definite portion of the resistance determined by the switch 25. The alternator is adapted to be paralleled, automatically for example by the successive closing of switches 3 and 6, and the operation of the relay 20 and of the voltmeter 16 are controlled by a master switch 22 and interlocks on the main switch 3 so that, inter alia, if the exciter volts build up fast enough the field resistance is reduced as soon as switch 3 is closed.
Patent GB-617317-A (GB)
Title: Addition agent for treating molten ferrous metal
IPC: C21C7/06
Filed: 1946-10-05
Abstract: A mixture for use as an addition agent for treating molten ferrous metal comprises 50 to 85 per cent of a silicon metal alloy containing at least 40 per cent silicon, 5 to 30 per cent of manganese dioxide and 2 to 20 per cent of an alkaline sodium compound.  The silicon metal alloy may be ferro silicon and 5 to 20 per cent of it may be replaced by calcium silicon containing 25 to 50 per cent calcium and the remainder silicon, the manganese dioxide may be manganese ore and the alkaline sodium compound sodium hydroxide or the sodium salt of a weak acid, e.g. sodium carbonate or sodium silicate.  The mixture may be added to molten ferrous metal in comminuted form or as briquettes in amount not more than 1 per cent during pouring and is stated to produce sound ingots or castings.
Patent GB-601098-A (GB)
Title: Improvements in or relating to the moulding of metals under pressure
IPC: B22D18/04
Filed: 1945-11-08
Abstract: 601,098. Casting-machines ; rolling. LANGANGNE, H. Nov. 8, 1945, No. 29795. [Classes 83 (i) and 83 (iv)] [Also in Group XI] Apparatus for supplying metal under pressure to moulds 11, 12 or to a rolling mill, comprises a raised reservoir ladle 1 in communication by a tube 3 with a fluid-tight crucible 5 fitted with valved nozzles 6, 9. The crucible is lined with refractory layers 18, 20, heat insulating layers 19, refractory protective layers 21, 27, and an electric-resistanceheating'layer 22 in which is embedded graphite or other refractory electrodes 23 ... 26 for heating or refining the molten metal. The ladle 1 and tube 3 have refractory linings 2, 4 and may have heaters similar to the crucible 5. When the ladle is empty, pouring may be effected by closing a valve 13 and supplying compressed gas by a valve 15 which is normally closed. A protective mass 16, 17 of reducing slag may be placed on the metal in the ladle and crucible. The layer 22 may consist of 10 per cent of tar and 30 per cent of graphite, or 10 per cent of iron filings, the residue being calcined dolomite.
Patent GB-1525355-A (GB)
Title: Continuous casting mould employing a copper alloy
IPC: B22D11/059
Filed: 1977-07-15
Abstract: The material consists of a copper alloy containing from 0.3% to 1.5% of chromium, from 0.10% to 0.50% of zirconium and up to 0.04% of a deoxidant. Advantageously, said alloy consists of from 0.5% to 0.8% of chromium, from 0.15% to 0.25% of zirconium and from 0.005% to 0.02% of boron as a deoxidant. In addition, the material may be age-hardened.
Patent GB-1503010-A (GB)
Title: Vertical diaphragm type electrolytic apparatus for caustic soda production
IPC: C25B15/00
Filed: 1975-07-16
Abstract: 1503010 Vertical diaphragm electrolytic apparatus KUREHA KAGAKU KOGYO KK 16 July 1975 [26 July 1974 30 July 1974] 29864/75 Heading C7B A vertical diaphragm electrolytic apparatus for caustic soda production comprises (1) a vertical diaphragm type electrolytic cell 1, (2) a primary brine-chlorine gas separating vessel 3 provided with a Cl 2 -accumulating upper space 3b connected to the Cl 2 -accumulating space 2b of an anode chamber via pipe 4a, a brine-accumulating lower space 3a having a brine down-flow pipe 4b opening into cell 1 (so that pressure P 1  in 1 keeps height H 2  substantially constant) and a raw brine inlet pipe 5 (3) a secondary brine-chlorine gas separating vessel 9 having a Cl 2 -accumulating space 9b connected to 3b via a pipe 6 which dips below the brine surface in vessel 9 and a brine accumulating space 9a connected to 3a via pipe 7, and (4) a ter tiary tower-type brine-chlorine separating vessel 10 having a Cl 2 -accumulating space 10b connected to space 9b by an obliquely rising pipe 13, a brineaccumulating space 10a connected via at least one pipe to 9a, and a Cl 2  outlet at the top of vessel 10. The interaction of gas and hydrostatic pressures in the 3 separators serves to keep the back-pressure on cell 1 steady, giving more stable electrolysis; a diaphragm cell is disclosed having Ti plate anodes coated with Ru oxide, and vertical diaphragms bearing wire net cathodes, Fig. 6 (not shown).
Patent GB-1479452-A (GB)
Title: Flooring material
IPC: E04F15/10
Filed: 1974-06-13
Abstract: 1479452 Moulding sheets DUNLOP Ltd 13 June 1974 [23 June 1973] 29927/73 Heading B5A In the production of floor blocks or tiles a sheet 1, Fig. 4, from which the blocks or tiles are cut is of thermoplastic material and is formed with projections 11 on one face, the sides of the projections being undercut; the material of the sheet is heated and calendered to sheet form and then passed through the nip of rollers 2, 3, the former having grooves 4 corresponding generally to the desired projections. The sheet thus formed is then heated by means 6 and passed through the nip of plain rollers 8, 9 to flatten the projections to the desired form. The material of the sheet may comprise, by weight, up to 15% of polystyrene, from 1 to 20% of another thermoplastic resin, from 3 to 35% of wood filler, from 25 to 80% of other filler and up to 10% of softening agent.
Patent GB-648082-A (GB)
Title: Improvements in pneumatic door engines
IPC: E05F3/02
Filed: 1948-11-18
Abstract: 648,082. Pneumatic single-stroke apparatus. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Nov. 18, 1948, No. 29975. Convention date, Nov. 19, 1947. [Class 8(ii)] In a pneumatic door engine of the kind comprising a stepped cylinder 1, 2, a differential piston 6, 7 coupled to the door, a connection 11 for maintaining constant pressure between the ends of the piston, and a conection 12 for a control valve to supply or exhaust air under pressure to or from the large end of the cylinder, including means for slowing the piston as it approaches the end of its instroke comprises a valve-holder 13 having a skirt 14 axially slidable in the piston 6, 7 between stops and against the pressure of a spring 19 and also having a spigot 20 in which a valve closure member 21 is axially slidable between stops and against a spring 24, the large end of the cylinder being provided with a nipple 25 on which the valve member 21 may seat. The internal surface of the spigot 20 fits round the nipple 25 to ensure proper alignment and seating of the valve. A bleed passage 26 in the nipple and a passage such as 31 in the spigot provides for the restricted flow of air when the valve 21 closes near the end of the instroke of the piston, and the passage 31 also provides for the initial flow of air into the cylinder past the check valve 21 at the beginning of the outstroke. The guiding engagement between the spigot 20 and the nipple 25 may be dispensed with if the skirt 14 fits closely in the piston to provide adequate guidance.
Patent GB-208138-A (GB)
IPC: F16H7/04
Filed: 1923-11-28
Abstract: 208,138. Deckel, F. [Firm of]. Dec. 11, 1922, [Convention date]. Belt gearing.-In a system of belt gearing, idler pulleys and jointed supporting-rods are so arranged that the driven pulley may be moved to various positions relatively to the driving-pulley without impairing the drive. A driving-pulley 3 carried on a shaft 4 supported in the stationary framing 5 is connected to the driven pulley 1 on a shaft x by a belt 2 passing over idler pulleys 7, 8. The shaft x is supported on a bracket 14 connected by a pivot joint 15 to a sleeve 18 connected to turn loosely but not move longitudinally on a rod 16. The rod 16 is secured adjustably, to allow for belt stretch, on a crosspiece 19 by a screw 20. The cross-piece 19 carries pins 17, which are in alignment with the points at which the belt leaves the pulleys 7, 8 and pivotally engage a bracket 9, which supports the bent shaft 10 carrying the pulleys and is itself connected by a pivot 11 to an arm 13 secured to a rod 12 pivoted on the shaft 4. Movement of the shaft x is possible in all directions in which it remains parallel to its position shown, and also to a limited extent in the line of its axis and in directions possible by turning about the centre 15 and the axis of the rod 16. A counterweight 34 balances the part 12 &c. The axis of the pivot 15 may intersect the axis of the shaft x so as to allow greater axial movement of the shaft. In a modification, the rod 12 is carried on an axis displaced from the shaft 4 a distance equal to the radii of the pulleys 7, 8 and in a direction parallel to the radii of the idle pulleys at the points where the belt leaves the pulleys on the driving side, and the driven shaft x is pivoted on the rod 16 at a position similarly chosen, the other end of the rod 16 directly supporting the idler pulleys.