baber/WOPTO huggingface dataset:
Patent GB-1235168-A (GB)
Title: Improvements relating to electromagnetic clutches or brakes
IPC: F16D13/64
Filed: 1968-09-23
Abstract: 1,235,168. Electromagnetic friction brakes; friction clutches. FRANKL & KIRCHNER FABRIK FUR ELEKTROMOTOREN UND ELEKTRISCHE APPARATE. 23 Sept., 1968 [27 Sept., 1967], No. 45021/68. Headings F2C and F2E.  In an electromagnetic brake or clutch the armature ring 5 supports a friction lining 2 (e.g. of cork), and a damping layer 6 (e.g. of cork) stiffened by a rigid member 7 (e.g. of metal or stiff plastics) is provided to reduce noise during initial engagement of the brake or clutch. In alternatives to the brake or clutch shown, the friction lining 2 may be stiffened with a rigid member bonded between the armature ring 5 and the friction lining 2, Fig. 4 (not shown), or with a rigid insert in the friction lining, Fig. 3 (not shown). The spider 4 is axially flexible.
Patent GB-1106388-A (GB)
Title: Improvements in or relating to filter-presses and method of using the same
Inventor: BROCINER RONALD ERIC
IPC: B01D25/176
Filed: 1963-11-14
Abstract: 1,106,388. Filter presses and compression presses for liquid extraction. ENGLISH CLAYS LOVERING POCHIN & CO. Ltd. 10 Feb., 1955 [14 Nov., 1963], No. 45092/63. Heading B1D. A method of removing liquid from a suspension therein of particulate material comprises the steps of (a) passing the suspension through a plate filter press until the outflow of liquid from the press is slow or stopped, (b) shutting off the infeed of the suspension, and (c) thereafter pressing the plates of the press together against the resilient opposition of gaskets disposed between the plates, whereby further liquid is forced out of the filter cake which has collected 'between the plates; the filter press necessarily comprises a plurality of plates, adjacent pairs of plates supporting two filter cloths and each plate having at least one peripheral gasket of elastomeric material joined to it so that two filter cloths are gripped between each pair of adjacent plate edge portions by the gaskets, and means for pressing the plates together. As shown, clay slip or slurry is introduced at 21 to a press having plates 3 which have been sealed against each other to form chambers 16 (though right-hand chamber 16 is shown unsealed for illustrative purposes) by hydraulic cylinder 9 and ram 10. When the filtration rate (e.g. at 22) is low or stopped, the cylinder and ram are actuated to press the plates together against the opposition of rubber gaskets 14. As shown, each plate 3 has a gasket 14 secured by adhesive to each of its rims 11. Alternatively a rubber sleeve having two side members which extend over the rims 11 may be slipped over the outside edge of each plate 3. Each filter cloth 17 is secured at its centre to a plate by a screwed collar 20.
Patent GB-1080903-A (GB)
Title: A process for producing esters of ª-formyl propionic acid acetals
IPC: C07C43/303
Filed: 1964-11-06
Abstract: Esters of b -formyl propionic acid acetal are produced by reacting acetylene with carbon monoxide and hydrogen, more than 4 moles carbon monoxide being used per mole of acetylene and less than 1 mole of hydrogen being used per mole of carbon monoxide, in the presence of a cobalt carbonyl or a precursor thereof and more than 1 litre (measured at room temperature and atmospheric pressure) of an aliphatic alcohol containing up to 4 carbon atoms per mole of acetylene, at a carbon monoxide partial pressure of 50-500 kg./cm.2 and a temperature of 100-150 DEG  C.  The reactants may be first heated in these proportions and then contacted with cobalt carbonyl. The cobalt carbonyl may be in the form of a complex or cobalt-containing substances which provide carbonyls under the reaction conditions may be used, e.g. metallic cobalt, inorganic and organic cobalt salts.  The alcohol used may be methanol, ethanol, propanol or butanol. Aqueous alcohol may also be used.  Examples describe the preparation of ethyl b -formyl propionate diethyl acetal and of methyl b -formyl propionate dimethyl acetal.  By-products obtained in the examples are b -formyl ethyl propionate and b -formyl methyl propionate. Further by-products which may be obtained are alkyl propionates and alkyl succinates.
Patent GB-1104368-A (GB)
Title: Torque transmitting device
IPC: F16D3/04
Filed: 1965-10-27
Abstract: 1,104,368. Linkwork conveying rotary motion. R. SCHMIDT. 27 Oct., 1965 [27 Oct., 1964], No. 45543/65. Heading F2K. [Also in Division B7] Linkwork conveying rotation between rotary members 112, 116 comprises a disc 128 therebetween, a first set of links 120 pivoted to the member 112 at points equi-angularly spaced on a common pitch circle and to the disc 128 at similarly spaced points, and a second set of links 140 pivoted to the member 116 at points equi-angularly spaced on a common pitch circle and to the disc 128 at similarly spaced points, the length of each link in a set being less than the distance between adjacent pivot points on either member to which the set is pivoted, and the axes of rotation of the members 112, 116 being prevented from coinciding either by making the links of the two sets of different lengths, or by external constraint. Each set comprises at least three links which are pivoted on pins secured to the members 112, 116 or disc 128. The members 112, 116 are secured on parallel shafts 114, 118 respectively, movable transversely one relative to the other. A second intermediate disc may be interposed between the first disc and one of the rotary members (Figs. 3, 4, not shown), with a third set of links equal in length to the second set, one of the discs being spring-biased laterally to prevent it orbiting when the axes of rotation of one disc and one member coincide. In Fig. 7, the rotary member 188 is secured on a shaft 198 which extends through rings 190, 192 forming the intermediate and output members of the linkage, a driven shaft 200 being connected to the ring 192 by a belt and a pulley 204, or by other toothed or chain gearing. To accommodate the angular movement of one rotary member (260), the intermediate disc may comprise two members (266, 268) drivingly connected by a universal joint (270) (Fig. 12, not shown). The linkage may be used in the transmission of a motor vehicle (Figs. 9-12, not shown) (see Division B7) or in the drive for the rolls of a rolling mill (Fig. 14, not shown), or a helicopter drive. Specification 1,057,655 is referred to.
Patent GB-1083028-A (GB)
Title: Improvements in washer-extractors
IPC: D06F37/20
Filed: 1964-11-09
Abstract: 1,083,028. Washing machines. AMETEK Inc. Nov. 9, 1964 [Nov. 29, 1963], No. 45577/ 64. Heading DIA. In a washer-dryer, the perforated drum (12) Fig. 1 (not shown), is carried in a housing 11 on a horizontal shaft 13 extending through the housing to bearings (14), 15 mounted on a platform 16 to which are pivoted supports 23, 30 biassed in opposite directions and carrying motors 21, 31, belt means 22, 33 being provided to connect one motor 21 to a pulley 18 on shaft 13 and the other motor 31 to a pulley 34 on the shaft 20 of motor 21. Supports 23, 30 are biassed by springs 26, 35, spring 35 being the weaker. Thus motor 31 drives shaft 13 at a lower speed than motor 21.
Patent GB-1102786-A (GB)
Title: Electrical controller
IPC: G05B5/01
Filed: 1965-10-28
Abstract: 1,102,786. Integrating amplifiers. MAATSCHAPPIJ VOOR ELECTRISCHE BEDRIJFSAUTOMATISERING ELECTROFACT N.V. 28 Oct., 1965 [12 Nov., 1964], No. 45613/65. Heading G4G. When an integrating amplifier is switched from automatically controlled to manually controlled input the capacitor in its feed back circuit is connected across the amplifier output leads so that on switching back to automatic control there will be a minimum of transients in the amplifier output (inputs must be matched prior to switching). As shown the feed back circuit for an amplifier 1 comprises a capacitor 2, switches 12, 13, variable resistor 3, voltage dividing resistances 4, 5 and an adding circuit 6. The automatically controlled input is indicated at 9. A switch 7, provided for switching over to a manually controlled input 8, is ganged to switches 12 and 13 so that when set for manually controlled input (as shown), the capacitor 2 is connected across the amplifier output terminals and the resistor 3 is connected directly to the amplifier output instead of via the capacitor 2.
Patent GB-1481569-A (GB)
Title: Connection members
IPC: B62D33/04
Filed: 1974-10-22
Abstract: 1481569 Structural joints ALUMINIUM SYSTEMS Ltd 17 Oct 1975 [22 Oct 1974] 45707/74 Addition to 1256226 Heading F2M The connection member 10 for extruded sections of the parent Specification is modified in that the threaded holes for the diagonal screws 20, 22 which secure the side members 14, 16 within channels of the second section are arranged with their arcs extending parallel so that the heads of the screws are accessible for tightening from the same side of the connection member, the modified connection member being therefore usable to connect a second section 28, Fig. 3, having two channels 30, 32 arranged on the same face, as shown, instead of one having the two channels on opposite faces, as in the parent Specification. This arrangement permits panels 34, 36 to be inserted in the channel 24 in the first section 26 and to engage face portions 38, 40 while abutting outer faces 37 of the channels, the screws 20, 22 being accessible through the openings in channels 30, 32, which may be covered afterwards by a cover (42, Fig. 4, not shown).
Patent GB-1281385-A (GB)
Title: Injection moulding pipe fittings
IPC: B28B21/74
Filed: 1969-09-17
Abstract: 1281385 Injection moulding pipe fittings AMSTED INDUSTRIES Inc 17 Sept 1969 [7 Oct 1968] 45820/69 Heading B5A Apparatus for injection moulding pipe fittings comprises a main mandrel 38 located in a cavity in a die 8 and a secondary mandrel 72 located in the cavity and spaced from the main mandrel, and means for forcing mouldable material into the cavity around and between the mandrels. The mandrels 38 and 72 can be moved into and out of moulding position by hydraulic cylinders 40 and 74. Clay is forced under pressure into an injection head 26 around a nose portion 90, between spider arms 91 and into the die 8. A rotary cutter 98 driven by shafts 100, 106 is used to sever the clay at the junction of die 8 and head 26. A pipe shaped cutter (124), Fig. 3 (not shown), is used to cut away the excess clay in the space between the two mandrels 38, 72. The die 8 comprises two halves 10, 12 hinged on a pin 14 and moved to and from closed position by an hydraulic cylinder 24 and arms (18), 20.
Patent GB-1018106-A (GB)
Title: 2-amino-4-alkoxy-6-(4-phenylpiperazino)-alkyl-ú¾-triazines
IPC: C07D251/16
Filed: 1963-11-20
Abstract: The invention comprises compounds of the general formula <FORM:1018106/C2/1> (wherein R1 is a methyl or ethyl group, R is a hydrogen or halogen atom or a methyl or methoxy group, and n is 2 or 3) and acid addition and quaternary ammonium salts thereof, pharmaceutical preparations containing them, and their preparation by reacting the corresponding quanyl-O-alkylisourea or a salt thereof with a reactive derivative of an acid of the formula <FORM:1018106/C2/2> optionally followed by acid addition or quaternary ammonium salt formation.  The compounds of the invention are useful as psychotherapeutic and hypotensive agents, and may be administered in the form of pharmaceutical preparations (e.g. tablets, suspensions and suppositories) containing them, together with a carrier or diluent.
Patent GB-1306380-A (GB)
IPC: C08F290/14
Filed: 1970-09-29
Abstract: 1306380 Acrylic-siloxane resins; electroncurable paints FORD MOTOR CO Ltd 29 Sept 1970 [24 Dec 1969] 46181/70 Headings C3G C3P and C3T [Also in Division B2] A resin is prepared by (1) reaction of a siloxane having at least 2 hydroxy and/or alkoxy groups bound to silicon with at least 2 equivalents of a monoester of a C 2-8  diol and acrylic or methacrylic acid, (2) copolymerizing the product with a mixture of vinyl monomers containing glycidyl acrylate or methacrylate, optionally (3) reacting the copolymer with acrylic or methacrylic acid insufficient to react with all the glycidyl groups therein, and (4) reacting the copolymer with a monoester of a C 2-8  diol and acrylic or methacrylic acid. The product resin may be mixed with liquid vinyl monomers to give a paint binder. Suitable hydroxy acrylates and vinyl monomers for each stage are listed; the siloxane preferably contains 2-5 OH or alkoxy groups. In Example 1 a polysiloxane of M.W. 700-800 having 3-4 methoxy groups per molecule is condensed with hydroxyethyl acrylate; the product is copolymerized with ethyl acrylate, methyl methacrylate and glycidyl methacrylate; the copolymer is partly esterified with methacrylic acid, then heated with hydroxyethyl acrylate. In further examples the siloxane is replaced by a tetrahydroxy cyclic siloxane of M.W. 1600 (Example 9); the glycidyl methacrylate by glycidyl acrylate (Example 7); the later hydroxyethyl acrylate by butyl vinyl ether (Example 2) (for comparison) or hydroxybutyl acrylate (Example 10); the first hydroxyethyl acrylate by hydroxyethyl methacrylate (Example 10) or .2- hydroxyoctyl acrylate (Example 11). The resins are mixed with methyl methacrylate, and (in Examples 4-7 and 11-14) with various combinations of this with styrene, vinyl toluene, divinyl benzene, ethyl acrylate, 2-ethylhexyl acrylate, butyl methacrylate, vinyl acetate, vinyl chloride, and acrylonitrile, and used to coat steel, wood, glass, ABS, or cotton fabric; in Example 5 TiO 2  is added. The coatings are cured by electron beam irradiation.
Patent GB-976892-A (GB)
Title: Vehicle suspension systems
IPC: F16F9/504
Filed: 1962-12-07
Abstract: 976,892. Hydraulic shock absorbers; valves. J. FORMAN. Nov. 26, 1963 [Dec. 7, 1962], No. 46224/62. Headings F2S and F2V. [Also in Division B7] In a vehicle suspension incorporating shock absorbers 10 with liquid transfer passages 11, each passage 11 is controlled by a pendulumoperative valve responsive to deceleration forces and laterally outward forces on the vehicle to restrict or close passage 11. Each valve comprises a cylindrical chamber 17, Fig. 6, with an upper external axial recess 19 and a lower circumferential recess 20 connected by passages 21, 22 with the transfer passage 11 and containing a shell 23 with slots 24, 25 corresponding to the recesses 19, 20 in which is slidable a valve sleeve 33 with slots 34, 35 corresponding to the slots 24, 25 and a spindle 40 pivoted at 43 to pendulum 13 which has an upward extension containing a ball 44 movable between bearing plate 42 and bracket 49. Laterally inward movement of the pendulum relative to the vehicle body is prevented by bracket 48 (Fig. 2). Pressure equalizing holes 36, 39 and a light spring 45 are also provided. In operation in the neutral position liquid transfer takes place freely through the recesses 20, 21, slots 24, 34, 25, 35; on deceleration of the vehicle body the pendulum moves to the right in Fig. 6 pulling valve member 33 so that slot 39 obstructs slots 25; on cornering the pendulum, if on the outside of the bend, rotates spindle 30 and valve member 33 so that slot 34 obstructs slots 24. The degree of obstruction of the slots and hence restriction of liquid flow and damper action depends on the deceleration and/or lateral forces acting on the pendulum.
Patent GB-1442055-A (GB)
Title: Process for isolating easily-soluble basic oxazine dyestuffs and phenazine dyestuffs
IPC: C09B19/00
Filed: 1974-10-25
Abstract: 1442055 Isolating basic oxazine and phenazine dyes BAYER AG 25 Oct 1974 [27 Oct 1973] 46235/74 Heading C4P A process for isolating an easily-soluble basic oxazine or phenazine dyestuff from its solution comprises precipitating the dyestuff by adding crea or thiourea to the solution. It is particularly suitable for dyes of structure
Patent GB-981098-A (GB)
Title: Dyeing process
Inventor: COATES HAROLD
IPC: D06L4/657
Filed: 1961-12-29
Abstract: Textile materials of cellulose, keratin, cellulose acetate and nylon are dyed and possibly flame-proofed by immersing them in a solution or dispersion of a precondensate of the formula <FORM:0981098/D1-D2/1> wherein -NR1R is the residue of a dye molecule or dye precursor molecule of the formula HNR1R in which R1 is H or an optionally substituted hydrocarbon radical and R is a dye or dye precursor residue, Z represents OH, the residue of a nitrogen compound as defined below or the residue of a phenol and Y- is an anion, and polymers produced by self condensation of such pre-condensates; the so treated materials are then dried and thereafter treated with gaseous ammonia and/or an aqueous solution of ammonia or an ammonium salt of a weak acid in which the salt is partially hydrolysed.  The pre-condensate may be prepared in situ by employing a dyebath containing a dye of the formula HNR1R and a THP salt with or without a nitrogen compound or a phenol.  The said nitrogen compound contains at least one H atom and/or at least one -CH2OH radical attached to a trivalent N atom.  The dyestuffs may be of many specified series including the azo and anthraquinone series and may be substituted by one or more amino or substituted amino groups and may also contain one or more of the solubilising groups -OH, -SO3H1-COOH and -P(O) (OH)2.  Examples of dyeing and flame-proofing are given.  Specifications 775,325, 882,993, 906,314, 935,098 and 938,989 are referred to.
Patent GB-1364716-A (GB)
Title: Making silicon nitride
IPC: C01B21/068
Filed: 1972-12-13
Abstract: 1364716 Silicon nitride ADVANCED MATERIALS ENG Ltd 13 Dec 1972 [8 Oct 1971] 46895/71 Heading C1A Silicon nitride is prepared by heating Si powder in a nitrogen-containing gas, e.g. N2 or NH3, at a pressure of #5 p.s.i.g. at some stage in the reaction. Si compacts may be heated at 4À4 p.s.i.g. at 1200‹ C., the pressure increased to 41À2 p.s.i.g. and the temp. increased to 1430‹ C. Alternatively the compacts may be (a) heated up to 1420‹ C. under a pressure >5 p.s.i.g. and then the pressure increased or (b) heated up to 1420‹ C. under a pressure <5 p.s.i.g. and then the pressure increased. The pressure may also be kept constant throughout the reaction. The final temp. reached may be in the range 1420- 1500‹ C. Si compacts, either isostatically pressed at 30,000 p.s.i., having a density of 1À627 g./c.c. and a surface area of 0À766 m.<2>/g. or slipcast, having a density of 1À2 g./c.c. and a surface area of 2À6 m.<2>/g., from powder having a particle size of <76 Á, may be used.
Patent GB-1525568-A (GB)
Title: Supporting of crane blocks
IPC: B66C15/00
Filed: 1975-10-30
Abstract: 1525568 Crane block supports W C WILLIAMS 30 Oct 1975 [30 Oet 1974] 46901/74 Heading B8H A crane block support 9 comprises a body of resilient material shaped to form curved concave surfaces 12 on two opposed surfaces 10, 11 to receive the sheaves of top and bottom haulage blocks (4), (5), Fig. 1 (not shown), of the crane. In use the block support 9 is gripped between the sheaves of top and bottom blocks (4), (5) by winding in cable (6) on a drum (7) to form a substantially rigid structure so that there is little or no tendency for the bottom block (5) to swing as the crane is moved to a new site. As shown, holes 13 with waists 14 are provided through which the cable (6) is threaded, the support block 9 being attached by straps 15 to the crane and a load cell 17 incorporated to advise the crane operator when excessive load is applied to the support block 9 or, alternatively, to cut out the motor driving the drum (7) to avoid excessive strain.
Patent GB-1410559-A (GB)
Title: Equalising the effect of gravitational acceleration in spring balances
IPC: G01G3/02
Filed: 1973-10-09
Abstract: 1410559 Set screw W KRAUT [trading as BIZERBA-WERKE WILHELM KRAUT KG] 9 Oct 1973 [12 Oct 1972] 47041/73 Heading F2H [Also in Division G1] A set screw comprises a head 26 provided with calibrations 27.
Patent GB-1417549-A (GB)
Title: Centrifugal pumps for pumping liquids
IPC: F01C1/10
Filed: 1972-10-12
Abstract: 1417549 Centrifugal pumps LUCAS INDUSTRIES Ltd 22 Dec 1972 [12 Jan 1972 12 Oct 1972] 1403/72 and 47074/72 Heading F 1C A centrifugal pump comprises an impeller having a shroud 15 defining with a hub 14 a passage 16 the internal and external diameters of which  increase in the direction towards the outlet end, vanes 17 inter-connecting the hub and shroud at the outlet end, and a plurality of annular rows of fingers 18-21 mounted on the shroud and/or the hub so as to project across the passage. The fingers, which may be of circular section wire, may be of increasing inclination to the impeller axis and decreasing length in successive rows towards the outlet. The fingers induce a swirl upstream of the vanes 17 and are stated to reduce vapour generation. The fingers may be hollow, liquid under pressure from the discharge side of the pump being supplied to the interior of each finger and discharged through one or more nozzles diverted at an angle to the plane of rotation, the angle being greater in the second row of fingers than in the first row. The fingers may be solid but each formed with a convergent on convergent-divergent diametrical slot, the inclination of the slot to the place of rotation being greater in the second row of fingers than in the first row.
Patent GB-1406957-A (GB)
Title: Icing detector
IPC: G01N21/59
Filed: 1973-10-10
Abstract: 1406957 Ice detector CANADIAN PATENTS & DEVELOPMENT Ltd 10 Oct 1973 [23 Oct 1972] 47313/73 Heading G1A In an ice detector pressurized heated air is driven via a duct 6 and plenum chamber 3 into a duct member 2 so as to entrain a secondary airflow of ambient air past an icing probe 7 positioned transversely of the duct members entrance and any ice build up formed on the probe 7 is detected by virtue of it obstructing a nearby radiation beam path from a radiation emitter 8 to a radiation sensor 9. The icing probe may comprise a central flat portion to encourage preferential ice build up near the radiation path. The ice may be removed by an electric heater designed so that the ice adjacent the ducts walls is melted before the ice at the centre of the probe. The description discloses three alternative forms of providing pressurized air into the duct member; the first Fig. 3 (not shown) deals with a series of discrete primary jets coming from the plenum chamber to direct the pressurized air into the duct member; the second Fig. 4 (not shown) provides a single jet coaxial within the duct and is fed from the plenum, and the third Figs. 5 and 6 (not shown) is similar to the Figs. 1 and 2 arrangement except that the pressurized air is directed substantially along the alls of the duct member instead of inwardly. The associated circuitry. The radiation emitter 78 is fed from a power source 75 and may be modulated. The output of the sensor 79 is amplified by an amplifier A 1  and is compared by voltage comparitors A4 & As with two reference levels provided by amplifier A2 & A 3  representing the upper and lower limits of icing, and the outputs of the voltage comparators A 4  & As are used to control a flip-flop F, which switches on and off a heater control 72 and a lamp 71. The heater control, supplies a heater 76 on the icing probe 77. Thus during operation of the system there is a continuous icing-deicing cycle, the frequency of which is directly related to the icing conditions. The amplified output of the sensor 79 is also fed via a buffer amplifier A 6 , a differentiator A 7  and a 'sample and hold' circuit to a meter 73 to indicate icing conditions. The description also discloses other similar alternative circuits Figs. 8-10 (not shown) employing logic circuitry, counters and memories.