baber/WOPTO huggingface dataset:
Patent GB-1238132-A (GB)
IPC: B61C5/02
Filed: 1969-10-24
Abstract: 1,238,132. Elevated railway vehicle. GEWERKSCHAFT EISENHUTTE WESTFALIA. 24 Oct., 1969 [8 March, 1969], No. 52223/69. Addition to 1,238,131. Heading B7L. In the elevated railway vehicle of the parent Specification, each control cabin is suspended from the rail by means of a coupling member, and is coupled to the adjacent unit through a universal joint, either directly or through the coupling member suspending the adjacent unit from the rail. Further universal joints may be provided in the couplings between adjacent units.
Patent GB-1251468-A (GB)
IPC: F16D13/64
Filed: 1970-09-25
Abstract: 1,251,468. Mounting clutch discs. FICHTEL & SACHS A.G. 25 Sept., 1970 [18 Oct., 1969], No. 45799/70. Heading F2U. In a twin clutch disc assembly the discs 32, 33 are mounted on rings 10, 13 and are rigidly connected to prevent relative rotation, the rings being mounted on a common hub 1 with limited freedom of rotary movement under the action of a vibration damper 4. As shown in Fig. 2 the discs are rigidly connected by pins on ring 13 engaging sockets 7 on ring 10, ring 13 being freely mounted on hub 1 while ring 10 has a lostmotion spline connection 38, 39, Fig. 14, with the hub. Damper 4 is mounted between ring 10 and hub 1. Alternatively the pins and sockets may be carried by the disc centre or side plates, and both rings may have a spline connection with the hub 1. In the arrangement of Fig. 6 the vibration damper and lost motion connection are combined and fitted between the pin and socket units 36, 37 and hub 2, Fig. 15, and include damping springs 35 and pins 42 movable between the shoulders 41 of cut outs 40. A claw coupling may replace the pins and sockets, Fig. 16 (not shown).
Patent GB-1257940-A (GB)
IPC: C08F220/18
Filed: 1969-07-18
Abstract: 1,257,940. Coatings. BRITISH OXYGEN CO., Ltd. 30 July, 1970 [18 July, 1969], No. 36254/69. Heading B2E. [Also in Division C3] Aqueous dispersions comprising a copolymer of methyl methacrylate acrylic acid and butyl acrylate, and rosin derivatives such as (1) a phthalate ester of hydroabietyl alcohol, (2) a glycerol ester of tetrahydroabietic acid, (3) a pentaerythritol ester of tetrahydroabietic acid, (4) a pentaerythritol ester of hydrogenated wood rosin and (5) a glycerol ester of hydrogenated gum rosin, are coated on to 25mm. wide label paper to form a dry adhesive film of 0.05mm thickness. The film is protected with a sheet of polyethylene.
Patent GB-1258605-A (GB)
Inventor: MODDEL A
IPC: B29C57/06
Filed: 1969-09-30
Abstract: 1,258,605. Moulding pipe grooves. INDUSTRIFLE ONDERNEMING WAVIN N.V. 30 Sept., 1969 [3 Oct., 1968], No. 47888/69. Heading B5A. [Also in Division F2] In apparatus for forming an internal groove 18 in the socket end of a thermoplastic pipe 1, e.g. of polyvinylchloride or polyethylene without thinning of the pipe wall, the heated tube 1 is mounted on a mandril comprising a fixed part 2 and an axially movable part 3, the tube is clamped to each mandril part 2 and 3 by radial displacement of respective pairs of mould parts 7 and 8, and the mandrel part 3 is then axially displaced towards the part 2 simultaneously with the mould parts 7 until the latter are in abutment with the mould parts 8, and pressure is applied by the mandril internally of the tube to define the internal groove by deforming the length of tube 18 originally extending between the separated mould parts into contact with an annular recess 16 defined by the mould parts 7 and 8. The mandril parts may be heated prior to locating the tube thereon. Each pair of the jaws 7 or 8 is joined to its respective mandril part 3 or 2 for the radial movement with respect thereto, actuated by a pair of double-acting pneumatic cylinder piston arrangements 11, 10, which act on the jaws 8 and the movement whereof is simultaneously transmitted to the jaws 7 by bolts 15, which are fixed to the jaws 7 and extend through the jaws 8 and radial guide slits 13<SP>1</SP> of a plate, or struts, 13 fixed to a shaft 4, connecting the mandril part 3 to a pneumatic piston cylinder arrangement whereby it is axially displaced with respect to the mandril part 2. In the Figs. 1 and 2 embodiment, the pressure is applied internally of the tube by compressed air supplied through passages 17, 5 in the shaft 4, but, Figs. 3 and 4 (not shown), this may alternatively be applied by a rubber ring, which may be air filled and located between the mandril parts and outwardly deformed upon compression therebetween, or by a rubber ring inflated upon admitting air thereto, or by employing a mandril ring, the parts whereof are expanded on introducing a conical member axially thereinto. The tube 1 may be loaded and unloaded from the mandril by an hydraulic device (not shown) acting on the tube or mandril, and the pipe 1 may be located on the mandril in abutment with a flange extending from the part 2.
Patent GB-1258915-A (GB)
IPC: H04B7/08
Filed: 1968-10-02
Abstract: 1,258,915. Radar. STANDARD TELE PHONES & CABLES Ltd. 22 Sept., 1969 [2 Oct., 1968], No. 46704/68. Heading H4D. A diversity monitored radio navigation system, e.g. for radio altimetry comprises a CWFM signal radiator (not shown) supplying signals which are reflected and received by antenna A passing signal to receiver B, mixed with a cross connected reference signal from the transmitter to yield a video signal processed in the receiver in a manner including frequency dependent amplification, identification and reduction of unwanted, spurious, abnormal, and inadequate signals, and limitation of waveform amplitude, in high speed response circuits identifying significant fades in the strengths of go and return reflected signals to give alarm outputs. The amplitude limited video waveform operates height determining circuits C deriving a measured height signal applied to an output over a switch unit D; the circuits C including further processing circuits, signal inadequacy determining circuits, and rate of height change determining circuits with warning alarm outputs for single path fading conditions. A monitor and diversity system comprising a further space separated receiving antenna E, receiver F with cross connected reference signal from the transmitter, and height determining circuits F, G, all of which may be identical to A, B and C; derives a height signal fed to switching unit D and to a comparator H together with the signal from C. On discrepancy therebetween exceeding a predetermined level, which may be related to the ruling height value, an alarm signal appears at Y, and a more quickly acting alarm signal X is applied to a switch control unit J, which also receives quick acting fade indicating alarms from units B, C, F, G. The unit J provides a changeover signal source to unit D when the alarm inputs indicate that the validity of the height signal from G will exceed that from C. This changes over an electromechanical or electronic relay A to transfer the output from C to G. Equal time delays in the height signal paths precede switch unit D to overcome delays in the command from unit J. The apparatus is applicable to pulse radar, ILS, and navigation systems utilizing reflected signals.
Patent GB-1259384-A (GB)
IPC: B01J29/18
Filed: 1969-03-18
Abstract: 1,259,384. Production of paraffins. BRITISH PETROLEUM CO. Ltd. 20 Feb., 1970 [18 March, 1969; 28 July, 1969], Nos. 14079/69 and 37768/69. Heading C5E. Hydrocarbon feedstocks boiling in the range 65-200‹ C. and containing paraffins and less than 50 wt. per cent naphthenes, are treated to selectively convert the naphthenes to paraffins without significant cracking of the paraffins by contact with a catalyst comprising an alkali metal cation-deficient zeolite of the mordenite group having a hydrogenating metal incorporated therein, the reaction conditions being:- temperature: 275-400‹ C. pressure: 100-2000 p.s.i.g. space velocity: 1-30 v./v./hour hydrogen : hydrocarbon mole ratio: 0À1 : 1 to 15:1 The preferred catalysts comprise Pd or Pt on a hydrogen mordenite having a -high silica : alumina ratio, preferably 16-30 : 1. The reaction may involve either cracking and hydrogenation to lower boiling paraffins than the feed, or merely ring opening and hydrogenation, and the conditions are preferably such that the latter occurs. There may also be some isomerization of paraffins to give more highly branched products. The feedstock may also contain up to 5 wt. per cent aromatics and/or up to 0À5 wt. per cent sulphur, in which case simultaneous hydrogenation and/or desulphurization occurs.  Following the above process the product may be subjected to isomerization at below 204‹ C. in the presence of H 2  and a catalyst active at such temperatures, particularly a combination of platinum group metal, alumina and chlorine. Such catalysts may be prepared by reacting Pt/alumina with an organic chlorine compound selected from CH 2 Cl 2 , CHCl 3 , CCl 4 , thionyl chloride, phosgene and thiophosgene.
Patent GB-1311201-A (GB)
Title: Method for forming perforations in metal sheet by etching
IPC: C23F1/02
Filed: 1970-04-01
Abstract: 1311201 Etching DAINIPPON SCREEN MFG CO Ltd 1 April 1970 15544/70 Heading B6J A metal web 6, Figs. 3A, 3B and 3D, is coated on both faces with photo-resist layers 5a, 5b having apertures 10a, 10b where perforations are to be made in the metal. The metal is lightly etched through the apertures to form shallow recesses 12a, 12b. That face of the web which has the smaller apertures 10a, if the aperture size on the two faces varies, is coated with an etching resist 11 which extends into the recesses 12a. The opposite face is then more heavily etched through the apertures 10b to enlarge the recesses 12b until they reach to the recesses 12a. The resist 11 and layers 5a, 5b are removed and the resulting apertures 13 in the web have a smaller diameter portion 9, which is near the web face which was coated with the resist 11 and the diameter of which is accurately predetermined. Alternatively, the first, light etching is done on one face only and that face is coated with the resist 11. Apparatus for carrying out the process, Fig. 4, comprises a plurality of rollers for guiding a web 17 from a roll 15 or 16 through a cleaning tank 20, drying tank 21, first etching chamber 24, washing chamber 27, drying chamber 29, chamber 30 for applying the resist 11, drying chamber 32, second etching chamber 33 and washing chamber 38. In the chamber 22, the web is lightly etched on both faces or on the upper face, in the chamber 30 the resist is sprayed on to the upper face of the web, and in the chamber 33 the web is more heavily etched, the chamber being longer in feed direction than the chamber 22, on the lower face.
Patent GB-1317708-A (GB)
Title: Apparatus for injecting or withdrawing liquids from containers
IPC: B01L9/00
Filed: 1969-05-21
Abstract: 1317708 Syringes BECKMAN INSTRUMENTS Ltd 21 May 1970 [21 May 1969] 53749/72 Divided out of 1316575 Heading F1R A syringe is mounted for movement bodily on guides 31 so that a needle 40 of plastics material may be inserted into or withdrawn from an uprightly mounted tubular container 18. The line of movement of the syringe is at an angle of about 10 degrees to the vertical so that the needle 40 engages the wall of the container 18. An apertured guide 41 is provided for the needle. The piston 35 of the syringe is connected by a rod 36 to a cross bar 37 which may be reciprocated by a pawl and rack mechanism 38 or a handle 39 as described in Specification 1306365.
Patent GB-1319224-A (GB)
Title: Handlebar assemblies
IPC: B62K21/16
Filed: 1971-01-07
Abstract: 1319224 Handlebar assemblies RALEIGH INDUSTRIES Ltd 29 Dec 1971 [7 Jan 1971] 767/71 Heading B7E A handlebar assembly comprises a stem 16 to which a handlebar 18 is clamped at 17 and a front fork tube 11 in which the stem is telescopically adjustable, the stem being formed intermediate its ends with a track 24 in which a ball 26 is located and retained therein by a locknut 12 threaded on to the fork tube, the arrangement being such that the range of adjustment of the stem in the fork tube is equal to the length of the track. The stem is locked within the fork tube by a frusto-conical member 22 which when drawn into the end of the stem by a bolt 20 rotated by its head 21 expands this end into fractional contact with the fork tube. The end of the stem is slit at 19 which enables it to be expanded by member 22 and also provides a locating means for said member. An indent 25 is provided at one end of the track for the ball, and the fork tube is rotatable in a head tube 10 by means of bearing race 14, 15.
Patent GB-1322973-A (GB)
Title: High-voltage insulators
IPC: H01B17/42
Filed: 1970-07-08
Abstract: 1322973 Electrical insulator ASSOCIATED ELECTRICAL INDUSTRIES Ltd 5 July 1971 [8 July 1971] 33249/70 Heading H2C A voltage grading capacitance or a high voltage insulator comprises capacitance plates formed by metal ports 26, 34 or 18, 20 and a dielectric layer 28, Fig. 2, 16, Fig. 1, provided along at least part of an insulating support column, Fig. 2, or an insulating enclosure of an interrupting break of an electric circuit interrupter, Fig. 1, and the capacitance is electrically connected in parallel with the support column of the interrupting break. The permittivity of the dielectric layer is > 1000. The connection of dielectric layer 28 to the metal parts may be by means of flexible connections 30, 32, Fig. 2, connecting the metal plates 26, 34 separating insulator sections 22. Alternatively the layer 16 may be extended to make electrical contact with the flanged end members 18 and 20, Fig. 1. The dielectric layer need not extend the full length of an insulator, it being connected to the terminal plates by metallization and it may have varying thickness to improve the field distribution. Barium titanate, a ceramic insulator may comprise the layer used and may be deposited by plasma spraying in thicknesses, for example, ranging from 2À5-25 mm. Electrical connection to the layer may be made by first applying a metallic layer, e.g. nickel, nickel chromium alloy by flame or plasma spraying, to which metal-to-metal connection is made by clamping, soldering &c. Electroless deposition (nickel) and air-drying pastes (silver) may be used to form the metallic layer. The insulator material of Fig. 2, may be of porcelain and the flanges 24 are cemented thereto. The interrupter of Fig. 1 is described in Specification 1,282,570.
Patent GB-1326737-A (GB)
Title: Washing machines
IPC: D06F41/00
Filed: 1970-10-14
Abstract: 1326737 Washing machines BRITISH DOMESTIC APPLIANCES Ltd 14 Oct 1970 [14 Oct 1969] 50416/69 Heading D1A [Also in Division F4]  To prevent clothes from being displaced (so unbalancing the loaded drum 6), rinse water is introduced into the open top of the drum 6 as a multiplicity of jets, rinse water being supplied through a pipe 25 to an annular chamber 22 having apertures 26 which direct the jets downwardly and inwardly, as shown in Fig. 4. The rinse water supply is controlled so that water just trickles from a short tube in the top wall of the annular chamber 22. Clothes laden with washing (or rinsing) water are loaded into the drum 6, and a manual switch is set to "spin" to energise the motor 7 to drive a pump 15 to remove liquid from the container 8 and drive the drum 6 through a centrifugal clutch 10. After a time, the manual switch is set to "rinse" to deenergise the motor 7 and supply rinse water from a tap (not shown) in the pipe 25 to the drum 6. When the water level in the container 8 reaches A-A, a pressure switch 18 closes to re-energise the motor 7 to drive the pump 15 and drum 6. When the water level in the container reaches B-B, the pressure switch 18 opens to de-energise the motor 7. The rinse cycle repeats automatically until the rinse water supply is turned off and the switch returned to "spin" for the final spin, which is terminated manually, or automatically by a timer. The pressure switch 18 may be replaced by timer controls.
Patent GB-1330989-A (GB)
Title: Dental retractor and bite opener device
IPC: A61C7/06
Filed: 1971-12-28
Abstract: 1330989 Regulating teeth A J CERVERADURAN 28 Dec 1971 60252/71 Heading A5R A device for regulating teeth comprises a generally U-shaped outer arch wire 1 for coupling to a band located on the wearer's head or neck a generally U-shaped inner arch wire 3 coupled at 5 to the wire 1, a bite plate 7 connected to the arch wires at 5 for separating a wearer's upper and lower front teeth, and an elastic band 10 connected across the arch wire 3 for exerting pressure on the front teeth of the wearer. The band 10 is connected to the arch wire 3 by means of hooks 9, and is coupled at its centre to the bite plate 7 by a wire 11 looped through apertures 8 in the plate. In an alternative embodiment, Figure 3 (not shown), the outer arch wire 1 is looped to give it greater resiliency.
Patent GB-1339965-A (GB)
Title: Material suitable for use as contact materials
IPC: H01H1/02
Filed: 1971-04-19
Abstract: 1339965 Impregnating sintered bodies with metal SIEMENS A G 19 April 1971 [26 March 1970] 25315/71 Heading C7D [Also in Division H1] A material suitable for use as a contact material for vacuum switches is made by providing a sintered metal body having its pores impregnated with a metal of lower melting point, and introducing a metal having a high vapour pressure into said body by liquid diffusion at a temperature lower than the melting point of said lower melting metal by using an auxiliary metal which forms a liquid phase with the lower melting metal and the metal having a high vapour pressure. The quantities of metal and other parameters are such that the auxiliary metal and the metal having a high vapour pressure penetrate only partially into the impregnated sintered body. The sintered body may be made of W, Mo or Re and may be impregnated with Ag or Cu or alloys thereof. Suitable metals having a high vapour pressure are Bi, Pb, Ga and Te and suitable auxiliary metals include Ag, Mg, Si, Cu, Sb, Zn and Cd. In an example by tungsten particles having a size of < 60 Ám are sintered at 1600‹C under a pressure of 2À5 Mp/Cm<SP>2</SP>, and then impregnated with Cu at 1200‹C under hydrogen. A mixture of Ag powder and Bi powder is impregnated at 1000‹ C V the Cu Ag Bi layer formed is machined off to leave a product consisting of a layer of W Cu Ag Bi above a layer of WCu above a layer of Cu 6. In another example, Mo is used to form the sintered body.
Patent GB-1345181-A (GB)
Title: Quenched photoluminescent displays and a power circuit latching  means  therefor
IPC: H04N3/14
Filed: 1971-01-14
Abstract: 1345181 Uses of luminescence BUNKERRAMO CORP 14 Jan 1971 1954/71 Heading C4S [Also in Divisions G4-G6] A display device comprises a layer 160 of heat quenched photoluminescent material, means 130 to heat selected areas of the layer, a current including the heating means, a potential source and a heat actuated switch 150 in contact with the heating means which is operated when the heating means are raised momentarily to a predetermined quenching temperature whereby the heating means are then maintained at the quenching temperature. The device comprises a printed circuit board or glass substrate 120, an array of heating elements 130 each connected between an individual conductor 140 and an earthed common conductor 142. Each element is also connected to another common conductor 155 via a lead 152 and a region of VO 2  which acts as a heat switch having a sudden large fall of resistance above 60‹ C. A constant potential source 173 is applied to conductor 155 which is insufficient to hear the elements 130 whilst the VO 2  is cold. Pulses from source 190 are applied to selected electrodes 140 to heat adjacent elements 130 and switches 150. The resistance of the switches falls sufficiently to allow the constant potential to provide increased heating current and maintain the selected elements heated. The elements 130 may be of Sb doped SnO 2 , In 2 O or CrSi 2 ; the phosphor of Zn x Cd 1-x S y Se 1-y , CuCl or AgCl. Several phosphors emitting different colours and quenched at different temperatures may be used. The panel may be operated by MOS integrated logic circuits; the initial heating may be applied with a heated pen. The area surrounding a character may be quenched to provide a bright figure on a dark background.
Patent GB-1345605-A (GB)
Title: Method of making a photographic silver halide dispersion
IPC: G03C1/053
Filed: 1971-05-27
Abstract: 1345605 Silver halide emulsions EASTMAN KODAK CO 27 May 1971 [4 June 1970] 17638/71 Heading G2C Silver halide having a grain size of 0.01-10 microns is formed in an aqueous medium in the presence of an acrylic peptizer and polyvalent metal ions. The peptizer may be a copolymer containing at least one recurring acrylic unit of formula -CH 2 CHCOOR or -CH 2 CHCONHR wherein R is a straight or branched chain saturated group which contains divalent sulphur linking two carbon atoms. It may have a MW of 10, 000- 500, 000 and an inherent viscosity of 0.05-4. The polyvalent metal may be lead, osmium, platinum, iridium, antimony, bismuth, arsenic, gold or rhodium. The ions may be present at a concentration of at least 10<SP>-5</SP> mole per mole of silver halide. Phosphoric, trifluoroacetic, hydrobromic, hydrochloric, sulphuric or nitric acid may also be present.
Patent GB-1347687-A (GB)
Title: Displacement transducers
IPC: G01D5/20
Filed: 1970-05-21
Abstract: 1347687 Measuring displacement electrically R E YOUNG 17 May 1971 [21 May 1970] 24541/70 Heading G1N An inductive displacement transducer includes an elongate member 9 of electrically resistive solid non-magnetic material movement of which varies the frequency of an oscillator 1 which is connected to a mixer 13 to which a similar oscillator 12, at a predetermined frequency, is connected so that mixer output represents displacement. The member 9 is a Nichrome (RTM) wire and a coil 8 of the similar oscillator includes a similar wire 10 for temperature compensation. The oscillator is a Clapp circuit Fig. 2 (not shown), thereby permitting a long coaxial cable 3 to be used for connection to the coil without affecting oscillation frequency, and includes a transistor (15). In use as a moisture meter the extension of a length of goldbeater's skin or "roped" hemp (20) Fig. 4 (not shown) due to humidity is measured by the transducer. Alternatively the temperature of a bi-metal strip 22 is measured Fig. 5, using coils 7, 8 in which wires 9, 19 respectively are differentially displaced, the coil 8 including a temperature compensating member 10. It is stated that the differential arrangement may be used with any of the embodiments.