baber/WOPTO huggingface dataset:
Patent GB-1290723-A (GB)
IPC: H04Q3/42
Filed: 1969-10-20
Abstract: 1290723 Automatic exchange systems GENERAL ELECTRIC CO Ltd 1 Oct 1970 [2 Oct 1969] 48561/69 Heading H4K  A detector and decoder for telephone subscribers' leg signalling push-button number senders in a small private exchange comprises the pairs of transistors 15, 16 and. 17, 18 connected to sense the presence of current and its polarity on each of the legs as switched through to terminals 5 and 6, a 50 Hertz source over transformer 19 pulsing each leg with alternate polarities to gate the transistors according to the conditions keyed on to the legs at the subscriber's substation. Conditions keyed to the legs are disconnect, earth, or earth over a rectifier poled one way or over a rectifier poled the other way. Each transistor pair has a PNP and an NPN transistor and according to conditions sensed at their bases operate relays RW, RX, RY and RZ. Selections within the exchange are made with two digits. In response to off-hook a substation is connected to terminals 5 and 6 of a detector and decoder, dial tone being applied over contacts WZ1. Actuation of a push-button to send the first digit interrupts the loop and relays RR and B are operated in the circuit of a monostable transistor pair (Fig. 4, not shown) and connect the detecting transistor pairs, Fig. 3, and prepares the final selector and marking circuit of Fig. 2. The first digit is restricted to values 2, 3 or 4 in response to which RW and/or RX operate with switch marking relays F and/or T following and locking up to the final selector circuit. Depending on whether F or T or both operate, the final selector steps to the 3rd, 13th or 18th contact. Release of the first operated push-button cuts off the transistor detector pairs and the associated code relays RW, RX release, with RR following. At the same time relays WZ, SW (Fig. 4, not shown) respond to release the F and T marking relays while connecting up marking relays WM to ZM for the second digit which causes the final selector to advance to the wanted outlet from the position set up by the first digit. A relay C in the wiper circuit tests for busy condition. In an alternative arrangement the code relay pairs supply their codes direct to an impulsing arrangement which produces decadic impulse trains to set up the exchange final selector or to be sent to another exchange (Fig. 7, not shown).
Patent GB-1295515-A (GB)
IPC: B65G49/04
Filed: 1970-02-16
Abstract: 1295515 Guiding webs SOC MEUSIENNE DE CONSTRUCTIONS MECANIQUES 16 Feb 1970 7395/70 Heading B8R Apparatus for guiding a strip 10 through a chamber 1 containing a treatment liquid 2 comprises a first drive roller 4 at one end region of the chamber; a second drive roller 3 at the other end region of the chamber; and intermediate rollers 51, 52 which are associated with the upper runs of the strips and which are arranged to subject the strips to two angular twists and to a lateral displacement, so that the strip travels in a flattened helical path through the chamber with contiguous lower runs, such as 12 and 15, having a different face uppermost, i.e. the strip is turned over each time it enters the liquid 2 from the roller 4.
Patent GB-1301354-A (GB)
IPC: F16K31/12
Filed: 1970-05-11
Abstract: 1301354 Fluid-pressure servomotor systems ROBERTSHAW CONTROLS CO 11 May 1970 [12 May 1969] 22729/70 Heading G3P [Also in Division F2] A valve device supplying fuel to a burner 14 comprises a housing 21, 22, 23 containing a pressure regulating valve 29 in series with a pneumatically operated shut-off valve 49. As shown the regulating valve controls the downstream seat 32. The shut-off valve comprises a diaphragm 53 responsive to pressure in a control chamber 52 which is selectively placed in communication with a vacuum source 15 or atmosphere through a control valve 16, the latter being operated thermostatically e.g. by a bimetallic strip, in response to the temperature of the burner.
Patent GB-1305292-A (GB)
IPC: F01N13/12
Filed: 1970-05-04
Abstract: 1305292 Arrangements of engine exhaust pipes R C HOLT 4 May 1970 21250/70 Heading B7M [Also in Division F1] The exhaust of an internal combustion engine mounted in a motor boat or amphibious vehicle is fed through pipes 1 and 7 to the top of a chamber 4 which is at least partly above water level, and which is connected by pipe 8 to an underwater outlet in the hull. The capacity of the chamber is at least that of one of the engine cylinders to prevent water flowing back into the engine should it stall. Pipe 8 has a further inlet 12 connected to the cooling water outlet from the engine, and in a modification (Figs. 4 and 5, not shown) this water is fed also through a water jacket surrounding chamber 4.
Patent GB-1305407-A (GB)
IPC: B22D11/06
Filed: 1970-02-24
Abstract: 1305407 Measuring scattering characteristics photo-electrically AMERICAN STANDARD Inc 24 Feb 1970 8745/70 Heading G1A The scattering characteristics of particles suspended in a fluid are investigated by directing a beam of circularly polarized light into the fluid and measuring the degree of change in polarization occurring as a result of scattering. The invention may be applied to determining the concentration of solid particles in a fluid. Light from a mercury, tungsten or xenon lamp 10 is filtered, if desired to produce a required wavelength using filter 12 and applied to an analyzer 14. The plane polarized light is right circularly polarized by use of a quarter wave plate 16. Scattering occurring in medium 18 is detected at angles greater than 90 degrees but preferably much greater. Within the sample 18, primary scattering (i.e. one reflection) results in the emergent light being left circularly polarized LCPL. Multiple scattering (more than one reflection) produces an equal number of odd and even reflections i.e. half left CPL and half right CPL. A further quarter wave plate 22 changes this radiation back into plane polarized light, polarized in two directions vertically at right angles to one another. By the use of an analyzer which is rotated between measurements through 90 degrees, two measurements of intensity PPL R  and PPL L , representing respectively half the intensity due to multiple scattering and half the intensity due to multiple scattering plus the intensity due to primary scattering. From these measurements the ratio of multiple to primary scattering - indicative of the particle concentration - may be calculated. Alternatively two sets of analyzers 24b and 24a and detectors 26b, 26a can be used to measure these quantities. A further alternative is to split up the beam into two paths after emergence from the sample, Fig. 3 (not shown). Another alternative is to use a quartz plate which rotates the plane of polarization and which is inserted and then removed for the two measurements. The detector(s) may be photo-cells or photomultipliers. The system can alternatively start off with left circularly polarized light entering the sample. The analyzers may be polarizing filters or prisms.
Patent GB-1305708-A (GB)
IPC: H01M50/567
Filed: 1969-06-09
Abstract: 1305708 Testing battery connections JOSEPH LUCAS INDUSTRIES Ltd 28 April 1970 [9 June 1969] 29031/69 Heading G1U [Also in Division H1] The connection between the upstanding lug of the strap inter-connecting electrode plates in the end cell of an electric storage battery and the terminal post is tested by passing a predetermined current through the battery for a predetermined period of time and measuring the temperature rise in the vicinity of the connection. In the example 500 amps is passed for 8 sec. through a 12 volt lead acid battery and the temperature rise detected by a thermocouple placed in a bore in the terminal post. A rise of 20F. indicates a satisfactory  join but a rise above this value indicates a faulty join.
Patent GB-1306772-A (GB)
Title: Device for splitting and recombining beam of light in double-beam  photometers
IPC: G01J3/42
Filed: 1971-04-08
Abstract: 1306772 Photo-electric photo-meters CARL ZEISS JENA VEB 8 April 1971 9061/71 Heading G1A In an infrared photo-meter in which a rotating semicircular mirror 1 directs radiation alternately through a measuring cell 6 and a reference cell 8 the two beams are recombined by a further rotating semicircular mirror 9 whose angular speed is adjustable. There are two models of operation of the photo-meter which eliminate errors caused by self-radiation from the sample 6 and reference 8, which may be at different temperatures. In the first mode, the mirror 9 rotates so fast that the thermocouple detector 13, positioned downstream of a mono-chromator 12, is unable to resolve the light pulses derived from mirror 9. Hence this mirror acts effectively as a semitransparent mirror and during both measuring and reference cycles, determined by rotation of mirror 1, the detector receives a constant D.C. level equal to the total self-radiation from sample and reference. This D.C. is eliminated as a part of the A. C. technique used to derive the ration of the measuring cycle signal to the reference cycle signal. In a second mode the revolution rate of mirror 9 is an integral multiple of that of mirror 1. In this case the self-radiation signal has the same A.C. value in both measuring and reference cycles (V LM  + V LR , Fig. 2 (not shown) and may be distinguished from the signals (V M , V R ) indicative of the sample and reference absorption.
Patent GB-1307674-A (GB)
Title: Mooring devices
IPC: B63B22/00
Filed: 1969-05-07
Abstract: 1307674 Mooring device EMI Ltd 29 April 1970 [7 May 1969] 23191/69 Headings B7A and B7S In a mooring device which includes a cable 23 for tethering a submerged buoyant object 19, an instrument package deployment assembly A through which the tethering cable passes is attached to the buoyant object by brackets 24. Coiled cable 1 connects the buoyant object to an instrument package 7 in the deployment assembly and on water soluble plugs 25 dissolving, assembly A slides down the tethering cable. A cable sensor such as lever mechanism 14 triggers a spring loaded piston 15 to lock the assembly to the tethering cable on completion of pay-out of the connecting cable. In the embodiment shown the connecting cable 1 coils round the tethering cable as the instrument package falls.
Patent GB-1316887-A (GB)
Title: Space heating apparatus
IPC: F24D5/02
Filed: 1971-02-09
Abstract: 1316887 Air heating stoves; air conditioning CONSTANT AIR SYSTEMS Ltd 28 March 1972 [9 Feb 1971] 4261/71 Headings F4K and F4V Space heating apparatus in which a heated air-combustion gas mixture from a direct gasfired air heater 16 is supplied through ducting 12 to a plurality of Venturi diffusers 10 wherein the heated air-combustion gas mixture is mixed with air drawn into the Venturi from the space to be heated and then discharged into the space. Each Venturi diffuser 10 has one or more high velocity inlet nozzles (20, Figs. 2a-2e) and one or more outlets (22), the diffusers being located at a high level in the space. A centrifugal fan 18 draws in air to be heated from outside the space through filters 19, said air then being passed over the burner flame in the heater 16. The gas burner 36 comprises an array of apertured fuel pipes 37 and mixing plates 38 and 40 which are attached to the walls of the pipes and include a plurality of apertures of various sizes through which flows the air to be heated. Water vapour does not condense in the heater but is carried with the heated air into the space to be heated. An exhaust fan (26, Fig. 3) is provided to remove air from the space at a rate corresponding to that at which air is supplied to the space by the centrifugal fan 18. Control circuitry is provided to ensure that the heater remains inoperative until the fans 18 and (26) are working, the temperature of the space being controlled by means of thermostats (30, 32, and 34, Fig. 3).
Patent GB-1325087-A (GB)
Title: Lamp
IPC: E01F9/615
Filed: 1971-05-21
Abstract: 1325087 Warning lamp DORMAN SMITH TRAFFIC PRODUCTS Ltd 12 May 1972 [21 May 1971] 16473/71 Heading F4R The disclosure is similar to that of Specification 1,325,086, but the claims relate to a warning lamp comprising a hollow post which serves both as a support for the lamp and as a battery housing, one end of the post being embedded and anchored in a block of settable material, e.g. concrete, cement or plaster.
Patent GB-1328805-A (GB)
Title: Fuel control apparatus for an engine fuel injection system
IPC: F02N99/00
Filed: 1970-12-17
Abstract: 1328805 Regulating I.C. engine fuel supply JOSEPH LUCAS (INDUSTRIES) Ltd 17 Dec 1970 [6 Jan 1970] 560/70 Heading F1B In apparatus for controlling the position of a control stop on a metering pump in a fuel injection system a cam 20 rotatable by a capsule 12 responsive to engine coolant temperature in a chamber 11 is engaged by a member 25 on a spring- biased rotatable cam follower 23 or by a follower member 26 when the solenoid 28 is energized during engine starting. The follower 23 is rotatable with a spindle 24, Fig. 2, carrying a crank 29 engaging a spring-biased pivotally mounted cam plate 30. A follower 37 including a roller 39 engaging the cam plate 30 is connected to a diaphragm 33 subject to engine intake manifold pressure and the roller also engages a piston 41 engaging the metering pump control stop. The plunger 15, Fig. 1, in the lost-motion connection 13, 14, 15, 45, 46 between the capsule 12 and cam 20, controls a port 19 through which an additional air supply may reach the engine. In operation, the roller 39 is moved to provide a reduction in stroke of the metering pump as a function of the rise in engine coolant temperature, which function is modified by the solenoid 28 to provide increased fuel for starting, and as a function of decrease in manifold pressure.
Patent GB-1329722-A (GB)
Title: Memory protection arrangements for data processing systems
IPC: G06F11/08
Filed: 1971-11-17
Abstract: 1329722 Data processing; memory protection PLESSEY CO Ltd 14 Nov 1972 [17 Nov 1971] 53310/71 Addition to 1329721 Heading G4A A time sharing digital data processing system as claimed in Specification 1,329,721 has modifications to the handling of the segment descriptor check code word. The check code is used to check the correct loading of the capability register by the master capability table, by forming a local check code word and comparing it with the check code from the table. Detection of an error may cause an interrupt. In the modification, the check code word is rotated by a number of bits less than the full data word. This is stated to prevent errors between the memory and processor unit caused by a failure of one lead, which failure would lead to the composed check codes being equally faulty and thus to the error not being detected. The hardware is that of the parent Patent with the addition of a shift unit. The word is rotated back to its original position before passing to the processor.
Patent GB-1330171-A (GB)
Title: Crimping of yarns
IPC: D02G1/00
Filed: 1971-04-19
Abstract: 1330171 Crimping yarns JOHN HEATHCOAT & GO Ltd 19 April 1971 [2 April 1970 3 April 1970] 15568/70 and 15822/70 Heading D1F In a method of crimping yarns, turns of yarn are wrapped round the wider end of a rrusito-conical forming surface defined by the edges of a plurality of spaced blades and are advanced towards the smaller end of the forming surface, the turns of yarn being caused by elements meshing in the spaces between the blades to assume an undulating path while advancing towards the smaller end of the forming surface, whereby the yarn is crimped. The method may be carried out in apparatus of the type shown in Fig. 1 wherein there is provided a cone member 2 having on its external surface a plurality of spaced blades 2c (Fig. 2, not shown). A pusher member 4 actuated by a reciprocating arm moves the cone member 2 along the shaft 1 so that blades 2c mesh with vanes 10 of the rotatable mounted skirt 9. Yarn Y is fed through the flyer, wrapped round cone member 2 and is pushed between the vanes 10 and blades 2c. Crimped yarn is removed through the shaft 1. A heater may be embedded in the cone member 2 (Fig. 2, not shown). An alternative apparatus for carrying out the method, is shown in Fig. 4 wherein yarn is wrapped around the rotatable conical formation of blades 29 which mesh with the rotatable group of blades 39. Hot air may be supplied via duct 47 to the crimping area. Crimped yarn is removed via the ring 50.
Patent GB-1330211-A (GB)
Title: Electrode materials for electric-arc welding
IPC: B23K35/36
Filed: 1971-06-15
Abstract: 1330211 Welding by fusion INSTITUT ELEKTROSVARKI IMENI EO PATONA AKADEMII NAUK UKRAINSKOI SSR 15 June 1971 27921/71 Heading B3R A continuous arc-welding electrode comprises a steel sheath and a powdered core, the core comprising in percentage by weight The electrode is intended for gas-shielded (particularly CO 2  shielded) welding with reverse polarity direct current. Examples are given of specific compositions of the core material, the steel sheath in each case constituting 70% by weight of the electrode.
Patent GB-1331057-A (GB)
Title: Distillation apparatus
IPC: C02F1/04
Filed: 1970-12-29
Abstract: 1331057 Distillation apparatus, control; desalination of water WEIR PUMPS Ltd 29 Dec 1970 [4 Dec 1969] 59184/69 Heading B1B A liquid is purified by distillation in an apparatus comprising feed conduit 5, evaporator 1, condenser chamber 2, distillate conduit 13, and distillate discharge pump 15 and pipe 17, the apparatus being automatically controlled by feed flowmeter 38 and off-on controller 22 which switches off the motor 18 of pump 15 when the feed flow rate falls below a predetermined value, thereby feeding distillate back to the evaporator through conduit 6. Non-distilled liquid is withdrawn from the evaporator through jet pump 10 which maintains a vacuum in the apparatus. In the production of fresh water from sea water, the ratio of the flow rate of the sea water feed to the flow rate of the fresh water distillate is preferably maintained at 2:1 whereby the salt concentration of the excess brine does not rise above a predetermined value, and the likelihood of scale formation on the heat transfer surfaces of the evaporator is diminished. The heating medium for the evaporator may be the jacket cooling water of a diesel engine.
Patent GB-1331932-A (GB)
Title: Beneficiation of vanadium-containing materials
IPC: C01G31/00
Filed: 1969-10-03
Abstract: 1331932 Benification of vanadium containing material INTERNATIONAL CARBON CORP 2 Oct 1970 [3 Oct 1969] 48810/69 Addition to 1244606 Heading C1A Vanadium-containing material, other than vanadium-containing slag, is(a) pre-heated under inert conditions to a temperature of at least 400 C. (e.g. up to 1000 C.) and then (b) contacted with oxygen at a temperature maximum in the range 600-1200 C. thereby forming water soluble vanadium compounds, steps (a) and (b) optionally being repeated. The vanadium-containing material may be fly ash, titaniferous ore, ferrophosphorus, optionally containing vanadium slag. An alkali metal salt, e.g. NaCl, NaCO 3 , Na 2 SO 4  and/or KCl may be added to the material prior to oxygen contact in step (b). The inert conditions may be provided by a N 2  atmosphere or by treatment in a vessel filled with material. The O 2  may be provided by O 2 , O 2 -enriched air or air optionally containing an inert gas. The material is preferably ground to 37-149Á prior to step (a). The oxidized material may be treated to recover vanadium oxide.
Patent GB-1337585-A (GB)
IPC: B64D11/06
Filed: 1971-06-01
Abstract: 1337585 Adjustable aircraft seats TELEFLEX Ltd 1 June 1971 [1 June 1970] 26392/70 Heading A4J A cantilevered seat squab support 13 of an aircraft seat has a thigh support 34 which is adjustable about a horizontal pivot axis 35. Adjustment is effected by a device 36 pivoted at one end to the thigh support and at the other end to the seat squab support. The frame of the seat comprises a central spine 11 carrying a lumbar support 24, a shoulder cushion 25 vertically adjustable by means of a rack and a headrest 26 vertically adjustable in a slide 27 at the back of the spine, a "pelvic" frame unit 12 to which the central spine is pivoted for recline adjustment about an axis 15 and a pedestal 18 supporting the frame 12 and telescoping in a base 16 such that both height and rotational adjustment of the seat may be effected, said base being slidably mounted in floor track rails 17. Recline adjustment of the central spine is effected by a pair of spinning disc type cylinder devices 20 connected at one end to short lever arms 21 on the spine and at the other end to the squab support 13 at 23. A pair of arm rests 28 are mounted on the outer ends of transverse shafts (29) Fig. 1 (not shown) which project outwardly from bearings (30) on the spine such that the arm rests can be turned upwardly into a raised stowed position indicated at 31. The height of the armrests may also be adjusted by means of knurled adjusters 43. One or more of the seat adjustment facilities can be powered by a power pack 19 in front of the pedestal 18. The power drive and the three rail floor track are described in Specification 1337586/70.
Patent GB-1340775-A (GB)
Title: Clamping mechanism
IPC: B25B5/12
Filed: 1972-09-27
Abstract: 1340775 Workpiece clamping BAKER PERKINS Ltd 27 Oct 1972 [6 Oct 1971] 46540/71 Heading B3D A clamping mechanism, e.g. for a workpiece 1 in a flash grinding machine comprises a clamping member 9 borne by a toggle linkage 7 on an arm 3 arranged for longitudinal movement on a housing 2, e.g. by hydraulic or pneumatic means 6 acting on an operating rod 4 of the linkage 7. A linkage 10 supported on the rod 4 includes an arm passing through an opening 12 in the arm 3 (the arm is shown in section), a roller 11 on the linkage 10 engaging a cam track 13 of the housing 2, and on actuating the means 6, the arm 3 and rod 4 are advanced together, locked against relative movement by engagement of the roller 11 and track 13. When the clamping member 9, e.g. a resiliently backed cast iron plate, is positioned above the workpiece 1 the roller 11 leaves the track 13, allowing advance of the rod 4 relative to the arm 3 into engagement with a stop 14 to straighten the linkage 7, thus lowering the member 9 into engagement with the workpiece 1.
Patent GB-1341705-A (GB)
Title: Equipment for sterilizing bottled fluids
IPC: A61L2/00
Filed: 1971-04-19
Abstract: 1341705 Stertilizing autoclave BRITISH STERILIZER CO Ltd 19 April 1971 [16 April 1970] 18182/70 Heading A5G [Also in Division A2] An autoclave for sterilising bottled fluids comprises a chamber to receive the bottles and a jacket around at least a part of a wall of the chamber, connections being provided for extracting air from the chamber and for supplying steam to the jacket in which the jacketed wall of the chamber is provided with constantly-open nozzles for the supply of steam to the chamber from the jacket, the nozzles being arranged to promote an even dispersion of steam in the chamber. A suitable autoclave is shown in Fig. 1 and comprises a chamber 2 provided with jacket 3. By means of a vacuum pump 12, air is removed from the chamber. Steam from a source S is supplied via the pipe 14 to the jacket, from which it is dispersed into chamber via nozzles 9.