baber/WOPTO huggingface dataset:
Patent GB-1158799-A (GB)
Title: Refrigeration Apparatus
IPC: F25B49/02
Filed: 1967-10-25
Abstract: 1,158,799. Refrigerating. TRANE CO. 25 Oct., 1967 [31 Oct., 1966], No. 48604/67. Heading F4H. In a compression-condensation refrigeration system, the condenser is cooled by three fans 1, 2 and 3, the fan 1 having its speed modulated and the fans 2 and 3 being switched on or off according to a load condition of the condenser. As illustrated, the motors 28 and 30 of fans 2 and 3 are switched on and off by snap-acting switches 31 and the speed of the motor 26 of fan 1 is controlled by a rheostat 60. The switches 31 and the rheostat are operated by bellows 34, 42 and 58 according to refrigerant pressure in the high side of the system. A possible scheme of fan operation is shown in Fig. 2 in which the expression " energy level " refers, in this embodiment, to condenser pressure but may, in other embodiments, refer to condenser temperature. Fan 1 is modulated between zero speed at a first low energy level and full speed at a first high level, and remains at full speed above that level. Fan 2 is energized above a second high level and de-energized below a third low level, and is only energized in the range between these two levels when the range is entered from a higher level. Fan 3 operates similarly with respect to a third high level and a second low level. In an altenative scheme, the fan 2 is de-energized below the second low level and then fan 3 is de-energized below the third low level. Power supply to the compressor 12 and to the fan motors may be established or interrupted by a switch 19 which is operated in response to the temperature of a space cooled by the evaporator of the system. In other embodiments, Figs. 4, 6 and 7 (not shown), the control circuit of fan 1 includes a solid state gated switch (44) which conducts current to the fan motor only during that part of each half-cycle following the flow of triggering current through a trigger diode (50) from a capacitance (52) whose rate of charging is governed by a variable resistance (54) operated in the same manner as the rheostat 60 of Fig. 5. All the fan motors may be controlled by a single bellows connected to the high side. The motors of fans 2 and 3 may be controlled by a single bellows while the motor of fan 1 is controlled in accordance with condenser temperature sensed by a thermistor. Preferred operating conditions are disclosed.
Patent GB-1024686-A (GB)
Title: Shoulder brace
IPC: A61F5/02
Filed: 1964-12-01
Abstract: 1,024,686. Laminates. H.G. NELKIN, A. R. NELKIN, C. NELKIN, E. N. CEASAR, H. NELKIN, E. GOLDSTEIN, and E. GOLDSTEIN, [trading as H. G. ENTERPRISES]. Dec. 1, 1964, No. 48837/64. Heading B5N. [Also in Division A5] The straps and back of a shoulder brace are made of two plies 14, 17 of fabric separated by a cushioning layer provided with numerous ventilating openings 16 that extend therethrough and through the ply 17. The cushioning layer may consist of foam rubber.
Patent GB-1077449-A (GB)
Title: Improvements in and relating to the manufacture of microporous sheet plastic material
Inventor: HARBARD EDWARD HENRY
IPC: B29C67/20
Filed: 1964-12-02
Abstract: Microporous sheet material is produced by a leaching process, in which the leaching liquid in the tank where leaching takes place is vibrated ultrasonically by ultrasonic transducers having a power input at least sufficient for the onset of invitation. The material being leached, e.g. polyvinyl chloride, is preferably a short distance, e.g. 1/4 -inch from the flat base of the tank, to the underside of which are fixed a plurality of ultrasonic transducers which are matched to the same frequency and uniformly spaced on the base.  The plastic material may suitably be passed through the tank as a continuous sheet below guiding rollers and held in place by a wire mesh moving with the sheet. This ultrasonic leaching may be used in conjunction with other leaching processes which may take place before or after it.
Patent GB-1325392-A (GB)
Title: Method for preparing a metallic catalyst
IPC: B01J23/70
Filed: 1971-10-26
Abstract: 1325392 Modifying alloy surfaces; electroless platinum plating E C BETZ 26 Oct 1971 [2 Dec 1970] 49715/71 Headings C7A C7F and C7U A metallic catalyst is formed from an alloy of Al 4À5 to 25% with Fe, Ni, Mo, Ti, V or W by contacting it with an oxidizing acid, e.g. nitric, phosphoric or aqua regia, contacting with an alkali metal hydroxide as a melt or solution to form aluminium hydroxide, and then heating (100 to 450‹C.) in the presence of oxygen to convert the hydroxide to oxide. The alloy may contain a further metal e.g. Co, Cr, or Mn. The metal may be in the form, of sheets, ribbons, screens or granules. The aluminium oxide may be converted to the gamma form by subsequent heating at 300 to 750‹C. A catalytic metal may be applied e.g. by electrolytic or electroless plating to the catalyst so formed e.g. metals of Group VIII, rare earth metals, Ag, Ti, Mn, Cu, Cr, Cd, Mo, W, V, Re, Th or Ac. A further layer of alumina may be applied by electro-plating aluminium, then contacting with an alkali metal hydroxide, reheating, re-oxidizing and recalcining. In an example Pt is deposited using a chloroplatinic acid, sodium carbonate, and sodium formate solution. After coating, the layer is heated. Specific examples of the alloys are (1) Al 5, Fe 70, Cr 20 and remainder other metals or non- metals e.g. Co, Si and Mn, and (2) Fe 70À85, Cr 22À0, Al 4À5, Co 0À5, Mn 1À0, C 0À15, and Si 1À0.
Patent GB-1485220-A (GB)
Title: Method and apparatus for cutting a continuous casting
IPC: B23K7/10
Filed: 1975-12-05
Abstract: 1485220 Flame cutting CONCAST AG 5 Dec 1975 [5 Dec 1974] 50086/75 Heading B3V In the severing of a moving continuous casting using a flame cutter 16 to traverse the casting while travelling synchronously with it, one or more rollers supporting the casting in the cutting area is/are moved rapidly in the direction opposite to the direction of movement of the casting as soon as the cutter approaches it/them and subsequently returned to its/their starting position after the cutter has travelled with the casting a distance at least equal to that through which the roller(s) was/were first displaced, the roller continuing to support the casting throughout the manoeuvre. As shown, water-cooled support rollers 7a-7e are mounted on a carriage 5 reciprocable by an hydraulic cylinder device. One or two flame cutters 16 are mounted on a slide 17 on a carriage 14 running on rails 12 and lockable to the casing 1 by means not shown. Contacts 21 on the rails 12, actuated in turn by means 22 on the carriage 14, control the operation of the device 10. Cutting is started with the cutter at A between the last fixed roller 8 and roller 7a. As the cutter approaches roller 7a, the first contact 21 is closed and the carriage 5 is retracted rapidly, leaving the cutter at C, i.e. between rollers 7a and 7b. When the cutter has travelled a further distance from roller 7a that is at least equal to the distance the carriage 5 was retracted, the second contact 21 is actuated and the carriage is returned. The cutter will still be between rollers 7a and 7b, at position D. As one cutter approaches the roller 7b the operation is repeated as i is also for rollers 7c and 7d. When the cut is complete, i.e. at B, the gas supply is cut-off and the carriage 14 and slide 17 are returned to their initial positions. The rollers 7a to 7e may have individual drives 26 spaced from the hot, cutting area. The carriage 14 may have sprays for granulating the cutter slag. The rollers may also be sprayed to prevent sputtering slag from sticking to them. The rollers may each comprise discs spaced along a shaft.
Patent GB-1330689-A (GB)
Title: Continous process and apparatus for the procuction of glass fibre reinforced thermoplastics
IPC: B29C48/505
Filed: 1970-10-22
Abstract: 1330689 Extruding with glass fibre reinforcements DART INDUSTRIES Inc 22 Oct 1970 [30 Oct 1969] 50151/70 Heading B5A [Also in Division B1] Up to 50% by weight of glass fibres (e.g. chopped glass roving) are mixed into a subdivided thermoplastic by means of a screw 31 having two stages each comprising a feed zone, a transition zone in which the material is compressed, and a metering zone, the compression ratio in the first stage being in the range 3 : 1 to 5 : 1 and in the second stage in the range 1À5 : 1 to 3À5 : 1, and the flight depth ratio of the second stage feeding zone to that of the first stage being in the range 1 : 1À25 to 1 : 2À5. There is decompression between the first stage metering zone and the second stage feed zone where venting takes place at 39; the first stage is heated to melt the thermoplastic while the second stage may need to be cooled owing to the frictional heat generated. The mixture is extruded through a die 38 as sheet, strip or strand, cooled in a water bath (5, Fig. 1, not shown) and fed to a cutter (6). As shown, compression is effected solely by variation of screw flight depth but this may be combined with variation in pitch.
Patent GB-1483375-A (GB)
Title: Control device for an eddy current retarder
IPC: H02K49/02
Filed: 1974-11-19
Abstract: 1483375 Electromagnetic relays LABAVIA SGE 19 Nov 1974 [21 Nov 1973 16 April 1974] 50160/74 Heading H1N In a contactor arrangement for controlling an eddy current retarder the contactor has an insulating support 1 in the form of a raised platform 2 and at least one flange 3 disposed parallel to this platform but offset downwardly therefrom such a distance that movable contacts 10, 11, operated by the armatures of contactor windings 5 mounted on the flanges can cooperate with fixed contacts 12, 13 on the platform. A fixed connecting contact 13 and a fixed power supply contact 12 are provided for each retarder winding, these two contacts being bridged by the movable contacts 10, 11, associated with a respective contactor winding 5, the bridging of contacts being carried out consecutively for consecutive energization of the windings of the eddy current retarder, Fig. 5, not shown. The fixed power supply contacts 12 are all common and secured to a terminal 16 by an H-shaped plate, Fig. 2, not shown. In the arms of the plate there may be apertures to reduce the cross-section of the conductive part to form a fuse for protection against excess current, the plate being then of modified shape, Fig. 7, not shown. Such apertures could also, or alternatively, be formed in other terminal connections, such those to the windings of the eddy current retarder. Auxiliary control and protection elements are received below the platform 2. An insulated protection plate with channels between moulded ribs for the cables connected to terminals may be fixed to the platform 2, Fig. 9, not shown. The armature and moving contact bridge assembly controlled by helical springs, may have its movement limited by a simple end stop 78, or where the insulated protection plate is fitted an end stop may be provided on this plate, Fig. 6, not shown.
Patent GB-1303714-A (GB)
IPC: F16D65/74
Filed: 1970-10-22
Abstract: 1303714 Shoe drum brakes; slave cylinders; adjusting for wear VOLKSWAGENWERK AG 22 Oct 1970 [26 Nov 1969] 50180/70 Headings F2E and F2F The shoes of a shoe drum brake are moved by two opposed pistons working in an hydraulic wheel cylinder 1, and the actuation of the pistons is accomplished via an auxiliary cylinder 4 located between the wheel cylinder 1 and a pipe 14 connected to a master cylinder which cylinder 4 also allows permanent hydraulic adjustment of the opposed pistons to compensate forlining wear. The auxiliary cylinder 4 contains a piston 8 movable in a working bore 5 between stops 9 and 11 and has a transverse port 6 which allows communication between the working bore 5 and the wheel cylinder 1 via an annular gap 15. The stop 9 is comprised of a resilient rubber gaiter having one end fitted into an annular groove 10 in the working bore 5 and projecting into the path of the piston 8 while the second stop 11 is constituted by a sealing-ring located on a screw 12 inserted into the working bore 5 and with an axial bore 13 connected to the pipe 14. In operation of the brake, pressure increase in the pipe 14 by operation of the master cylinder causes the piston 8 to move against the gaiter 9 which is compressed and causes a pressure increase in the wheel cylinder 1. At the same time a sealing ring 7 exposes the port 6 to pressure in the pipe 14 to allow fluid flow through the gap 15 if brake lining wear necessitates it. In releasing the brake, the gaiter 9 expands to move the piston 8 and close the port 6 to the pressure in pipe 14, thereby retaining any fluid which has passed from pipe 14 through the port 6. Back pressure in the cylinders 1 and 4 urges the piston 8 firmly against the sealing ring 11 but fluid can no longer escape from the wheel cylinder 1 and the brake is permanently adjusted for lining wear.
Patent GB-1307028-A (GB)
Title: Phenethylamide derivatives and a process for the manufacture thereof
IPC: C07D207/28
Filed: 1971-10-29
Abstract: 1307028 3,4 - Dihydroxyphenylethylamine derivatives and boric acid complexes thereof F HOFFMANN-LA ROCHE & CO AG 29 Oct 1971 [30 Oct 1970] 50331/71 Headings C2B and C2C Novel compounds of Formula I wherein R represents a C 1-8  t-alkoxycarbonyl group, a 5-oxo-2-pyrrolidinecarbonyl group, a phenylsulphonyl group which may be C 1-7  alkyl-substituted or a nitro-substituted phenylthio group, and salts thereof are prepared by one of the following methods - (a) by acidic hydrolysis of a boric acid complex of the compound of Formula I above, (b) by dibenzylating a compound of Formula II wherein R<SP>1</SP> is a C 1-8  t-alkoxycarbonyl group, a N - benzyloxycarbonyl - 5 - oxo - 2 - pyrrolidinecarbonyl group or a phenylsulphonyl group which may be C 1-7  alkyl substituted, and (c) by mild basic hydrolysis of a compound of formula wherein R<SP>11</SP> is a C 1-8  t-alkoxycarbonyl group and R 1  is C 1-7  alkyl or phenyl. 0,0<SP>1</SP> - Nitrophenyldisulphide is obtained as a by-product from the acid hydrolysis of the boric acid complex of N-[(o-nitrophenyl)thio]- dopamine by method (a) above. Intermediates of Formula II above are prepared by reacting 3,4-dibenzyloxyphenethylamine or a salt thereof with an agent furnishing the group R<SP>1</SP>, e.g. p-toluene sulphonyl chloride or N-carbobenzyloxy-L-pyroglutamic acid dicyclohexylamine salt. Boric acid complexes of compounds of Formula I above are prepared by treating a solution of dopamine of Formula IV or a salt thereof with boric, acid or a borate at a pH of at least 7 to form a boric acid complex of the dopamine of the Formula IV in which the two phenolic hydroxy groups are esterified with boric acid and then treating this di-borate ester with an agent furnishing the radical R such as an acid halide, acid anhydride or acid azide particularly t-butoxycarbonyl azide. Pharmaceutical compositions in conventional forms for enteral or parenteral administration having hypotensive, - antipyretic and anti- Parkinson activity comprise an above novel compound I and a carrier therefor.
Patent GB-1327269-A (GB)
Title: Pressure transducer
IPC: G01L7/04
Filed: 1970-10-23
Abstract: 1327269 Measuring pressure electrically GENERAL ELECTRIC CO 23 Oct 1970 [27 Oct 1969] 50393/70 Heading G1N A force balance arrangement for measuring pressure comprises a Bourdon tube 10 (Fig. 1) subjected to the test pressure from a source 17, whose angular twist is balanced by an electromagnetic force acting on a beam 20 attached to the moving end 14 of the Bourdon tube. The axes of rotation A-A of the tube 10 and B-B of the beam 20 are co-linear. Angular rotation of the assembly is sensed by variable inductance transducer 35, producing a corresponding variation in the amplitudes of oscillation of an oscillator 45, whose output is rectified at 47 and fed to a coil 41 supported by the beam 20 in the air gap of a pot magnet 34 whereby balance is restored. The energizing current at balance is proportional to the test pressure. Two Bourdon tubes expanding in opposite directions may be used to measure differential pressure.
Patent GB-1504176-A (GB)
Title: Control current generators primarily for use in central dictation systems and central dictation systems incorporating such generators
IPC: H04M11/10
Filed: 1975-12-23
Abstract: 1504176 Selective signalling DICTAPHONE CORP 23 Dec 1975 [27 Dec 1974] 50602/76 Divided out of 1504175 Heading G4H A constant current generator comprises a constant current source 102 and a plurality of resistors 114-124 which can be selectively connected to the current source, by means of switches 114a-122a, and thereby determine its current output. Operation of certain of the switches-114a to 118a-causes energization, via an enabling device 134, 136, of a signal generator 130. The output of the generator is thereby superposed on the current produced by operation of the corresponding switch. The generator may be used as a source of control current in a remote dictation station, such as employed in the system of parent Specification.
Patent GB-1248334-A (GB)
Title: Talking mechanism for dolls
IPC: A63H3/33
Filed: 1969-10-15
Abstract: 1,248,334. Gramophones. SCHILDKROT A.G. 15 Oct., 1969 [16 Oct., 1968], No. 50694/69. Heading G5R. A talking mechanism for a doll comprises a disc record 20 carrying a plurality of sound grooves arranged in parallel spirals which is angularly adjustable by means of an operating element 80 with the drive switched off so as to start the playback stylus 42 in a selected groove. As shown, each stroke of the bar 80 steps the record 20 by means of a pawl 83 and ratchet (24, Fig. 4) and, through an arm 100, lifts the pickup arm 40 which swings back to its starting position. A rotary disc 50 is driven by a motor 30 and drives, through a one-way clutch 52, 26, the record 20. After a predetermined number of revolutions, a pin 56 tracking a spiral groove 54 in the disc 50 enters a depression 57 so that an arm 55 carrying the pin 56 opens contacts (70, Figs. 5a and 6) in the motor circuit which are opened also during a stroke of the bar 80.
Patent GB-1453593-A (GB)
Title: Brake systems
IPC: B60T13/26
Filed: 1973-11-01
Abstract: 1453593 Multi-circuit tractor-trailer brake system; valves ROBERT BOSCH GmbH 1 Nov 1973 [2 Nov 1972] 50740/73 Headings F2F and F2V In a multi-circuit compressed air tractor-trailer brake system, a trailer brake control valve 16 is selectively operable in response to an increase in pressure in either of two tractor service air brake lines I, II or by a drop in pressure in a spring loaded brake circuit 21, 22, 23, 24, 25, to actuate trailer brakes, the spring loaded brake circuit having an auxiliary brake valve 25 which selectively connects the spring loaded brake circuit to an air supply 7 for brake release or to atmosphere for brake actuation and a check valve 27 which operates on a non-return valve when pressure therein is below a predetermined value to prevent an uncontrolled drop in pressure in the spring- loaded brake circuit, or as an inactive valve to allow flow in either direction when the predetermined pressure is exceeded between the valve 25 and a supply line. A compressor 1 supplies air through a pressure regulator 2, a defrosting pump 3 and a flow circuit protective valve 4 which has outlets to reservoirs 5, 6 for the tractor brakes via lines I, II to a brake valve 10 controlling at least one front axle brake cylinder 13, and at least one rear axle cylinder 15. A trailer supply line 7 leads from the valve 4 to a coupling head 9 and to the spring controlled brake circuit via the check valve 27, the circuit comprising a relay valve 22 controlled by a brake valve 25, and spring brake cylinders 23, 24 for parking or emergency use. The trailer control valve 16 controls supply to the trailer brakes for the supply line 7. The check valve 27, Fig. 2, has a first piston 30 with a sealing ring 32 controlling air flow and controlled by a weak spring 33 which abuts a strong spring controlled piston 36 so that initial supply pressure lifts the piston 30, subsequent movement of the piston 36 holding the piston 30 by mutual engagement away from its seat to allow air flow in either direction, the pistons closing upon supply failure (below a predetermined pressure valve) is protect the spring brakes.
Patent GB-1315166-A (GB)
Title: Cystosine inosinate
IPC: C07H19/20
Filed: 1970-10-27
Abstract: 1315166 Cytosine inosinate LABORATORIOSMADE SA 27 Oct 1970 [7 Nov 1969] 50912/70 Heading C2P The novel compound cytosine inosinate may be prepared by reacting inosinic acid with cytosine in a heated polar solvent. The reaction may be effected (a) by preparing separate solutions of acid and base, employing the least possible quantity of solvent to obtain solution, and then combining the two solutions, or (b) by dissolving the acid and base in the same solvent at boiling temperature. The solvent is preferably water.
Patent GB-1528634-A (GB)
Title: Manufacture of plastics coated paper sheet
IPC: B32B27/10
Filed: 1975-12-12
Abstract: 1528634 Coating BICC Ltd 11 March 1977 [12 Dec 1975] 51043/75 Heading B2E [Also in Divisions B5 and D1] A method of manufacturing a plastics coated paper comprises extruding a coating of thermoplastics onto the surface of the paper sheet as it advances in the direction of its length, water or other liquid being applied thereto in amount sufficient to compensate for any loss of moisture from the paper that may have occurred during the manufacture of the coated sheet. Preferably the paper is dampened immediately downstream of the roll by which the plastics coating material is stripped from the cooling roll, or if post-treatment of the plastics coating is effected immediately downstream of the post-treatment apparatus.
Patent GB-1527768-A (GB)
Title: Device for punching holes
IPC: B26F1/14
Filed: 1975-12-12
Abstract: 1527768 Punching apparatus MASCHINENFABRIK GOEBEL GmbH 12 Dec 1975 [14 Dec 1974] 51063/75 Heading B4B A punching device for punching holes in sheet material, e.g. paper, comprises a punching tool 11 having a plurality of punches 10 and a diemember 8 having at least two series of apertures 9 of the same cross-section and spacing as the punches, the punching tool and apertured member 8 being adjustable so that, on relative movement, the punches are co-operable with the holes of a different series to effect punching of the material. As shown the die member 8 is clamped between two plates 2, 3 releasably secured to a shaft 1 by screws 4, 5. The apertures in the die member are spaced apart a distance 12 which is half that of the spacing 60 of the punches thereby producing two series of working apertures. In operation, when one series of apertures is worn, the plates are loosened to allow the die to be rotated to bring the second series into alignment with the punches. Alternatively, the disc 11 can be rotated to align the punches with the second series of apertures. The cross-section of the punches may be circular, square or triangular.
Patent GB-1380234-A (GB)
Title: 1-amino-4-beta-sulphatoethyl or vinyl-sulphonylbenzene-2-sulphonic acid and salts thereof
IPC: C07C315/04
Filed: 1972-11-06
Abstract: 1380234 1-Amino-4-(#-sulphatoethyl or vinyl)- sulphonyl-benzene-2-sulphonic acid FARBWERKE HOECHST AG 6 Nov 1972 [5 Nov 1971] 51071/72 Heading C2C [Also in Division C4] The invention comprises compounds of the formula wherein Z is a vinyl group or a group of the formula XO 3 SO-CH 2 -CH 2 - and X is H, Na or K. They may be obtained by dissolving or suspending a compound of the formula wherein Y is -OH or XO 3 SO-, in a mixture of H 2 SO 4  and SO 3  at from -15 to +10 C. and heating the mixture to from 110 to 150 C. and when it is required to prepare a compound in which Z is a vinyl group, treating the product so obtained with an alkali at a pH from 8 to 14. Examples are given for the preparation of the compounds. They are useful as diazo components in the preparation of azo dyestuffs.