baber/WOPTO huggingface dataset:
Patent GB-829460-A (GB)
Title: Improvements in or relating to metal extrusion presses
Inventor: SINGLETON PETER
IPC: B21C23/21
Filed: 1957-08-21
Abstract: 829,460. Extruding. LOEWY ENGINEERING CO. Ltd. June 30, 1958 [Aug. 21, 1957], No. 26359/57. Class 83 (4). A metal extrusion press has a hollow guide 24 centred with respect to the extrusion die 9 and billet container 16 and adapted to receive and centre the extrusion stem 20. The die 9 with its holder is supported by a bolster carrier 13 which is centred by wedges 14 within a die mounting structure 15 having hollow longitudinal extensions 22. The latter enclose the press tie-rods 1 and form guideways for the hollow guide 24 which is moved by rams 27 and has a conical recess 32 adapted to engage a corresponding spigot 33 on the container 16. The extrusion stem 20 including its mandrel 21 is mounted in a stem holder 18 connected by a loose coupling 19 with a crosshead 7 actuated by a main hydraulic ram 4 and retracted by return rams 6. The stem holder 18 is non-rotatably guided by interengaging adjustable tongues and grooves 29, 30, Fig. 3 (not shown), within the bore of the hollow guide 24. The press may be vertical or horizontal and is used for the hot or cold extrusion of solid or hollow articles.
Patent GB-757731-A (GB)
Title: Improvements in hydraulic transmission units
IPC: F16D31/02
Filed: 1953-09-24
Abstract: 757,731. Hydraulic transmission units. DIONIGI, L. DE. Sept. 24, 1953 [Sept. 25, 1952], No. 26368/53. Class 69 (2). In a hydraulic transmission unit for a vehicle or a machine tool the driving shaft 1 has an eccentric 16 carrying arms 13 and the driven shaft 2 has a housing 4, 41 secured thereto and enclosing three cylinders 7, each carrying a doubleended piston 11. The arms 13 slide in bushes 12 in the pistons, and rotation of the shaft 1 causes the arms 13 to reciprocate and move the pistons 11 to-and-fro in the cylinders 7. The cylinders contain liquid which passes via ports 22, ducts and valves 26, 27 from one end of each cylinder to the other end. When the speed of shaft 1 increases, the valves 27 are gradually closed by centrifugal weights 29 acting against springs 30, the valves 26 being normally held closed by a spring 34 acting on a helically-grooved sleeve 33 and levers 31. When the valves 27 are closed, the housing commences to turn and drive the shaft 2. A lever 35, which may be connected to the throttle controls the valves 26 so that they may be open to raise or maintain engine speed, for example, when the load increases. The pistons have flap-recovery valves 38 and are provided with springs 40. The housing is filled with liquid to prevent leakage from the cylinders and to assist cooling and is connected to a reserve supply comprising a spring-loaded piston in a cylinder. A speed reducing mechanism may be provided between the engine and the transmission unit.
Patent GB-1347357-A (GB)
Title: Motor vehicle headlamps
IPC: F21V5/00
Filed: 1971-04-19
Abstract: 1347357 Motor vehicle headlamps CIBIE PROJECTEURS 19 April 1971 [14 May 1970] 26428/71 Heading F4R A dipped-beam motor vehicle headlamp comprising a parabolic reflector, a light source having a filament located in the vicinity of the principal focus of the reflector and masking means so associated with the filament that without further optical means the light emitted by the headlamp would be bounded by a single upper horizontal plane, is also provided with a number of prismatic reflecting or refractory surfaces which cause part of the emitted light to be deflected upwards and horizontally away from the central axis of the lamp so that the emitted light is bounded at its upper surface by two horizontal half-planes AB, CD on either side of the central axis which are of different heights and are joined by an inclined planar segment BD. The half-plane of greater height DC, coinciding with the horizontal plane through the central axis H of the lamp, is directed to the near-side of the roadway and the inclined plane is preferably inclined at an angle of 45 degrees. The prismatic surfaces are preferably moulded into the surface of the cover glass for the lamp, though they may alternatively be preformed and secured to the inner surface of the cover glass by adhesive or they may be located between the cover glass and the reflector. Alternatively suitable prismatic formations may be made in the surface of the reflector. Fig. 4 shows a front view of a headlamp designed for use with a light source having an axial filament partially surrounded by a hemicylindrical mask. The prismatic formations are arranged on the horizontal axis of the cover glass; the line of greatest slope of each prismatic formation is inclined both to its horizontal and vertical edges so as to produce the appropriate horizontal and vertical displacement of the beam. In the case of a lamp using a source having a horizontal transverse filament the prismatic formations are arranged adjacent to the vertical axis of the cover glass, Fig. 7 (not shown).
Patent GB-1349693-A (GB)
Title: Cryostatic container for use in a cryostatic enclosure
IPC: F17C3/08
Filed: 1972-06-07
Abstract: 1349693 Cryostats COMMISSARIAT A L' ENERGIE ATOMIQUE 7 June 1972 [9 June 1971] 26494/72 Heading F4H A cryostat comprises a thermally insulated, double walled outer enclosure 9 having suspended therein by tie-rods 8 adjacent but separate cups 1, 2, 3 each containing a liquefied gas and one element of a superconducting circuit. The cups are formed of a heat insulating material, e.g. resin bonded glass fibres, and are interconnected by open channels 5 located at the top portions of the cups to provide passageways for electrical connections between the elements. The cups are surrounded externally by a supporting strip 7 to which the lower ends of the tie-rods 8 are attached.
Patent GB-969529-A (GB)
Title: Improvements in or relating to barrel electroplating apparatus
Inventor: DUNN BRIAN PETER
IPC: C25D17/16
Filed: 1961-07-21
Abstract: <PICT:0969529/C6-C7/1> <PICT:0969529/C6-C7/2> <PICT:0969529/C6-C7/3> <PICT:0969529/C6-C7/4> Cathode pegs of barrel electroplating apparatus are mounted such that plating can be easily removed from them.  Fig. 2 shows a cathode peg 1 mounted on a barrel wall 3 by a bolt 2 which can be tightened so as to retract the peg into a recess in a hard washer 4 containing a resilient washer 7. On tightening the bolt, plating 9 on the peg is forced off by abutment with the hard washer 4.  In a modification, the hard washer is omitted and the barrel wall itself provides the abutment surface, Fig. 3 (not shown). Fig. 4 shows a cathode peg 1a carried by a cable 10 which in use is submerged in a barrel.  The peg and cable are joined by a union 14 having a nut 15 screwed thereon. The nut provides an abutment surface 16 for forcing deposit from the cap.  A displaceable cover 14a is provided for the screw threads.  Fig. 5 shows an alternative embodiment having a resilient washer 7, abutment washer 4, nut 18 and cover 17a.  Fig. 6 shows a tool comprising a collar 19 recessed at 21 for use with cathode pegs removed from their barrel apparatus.
Patent GB-1294647-A (GB)
Title: Temperature control systems
IPC: G05D23/00
Filed: 1970-06-02
Abstract: 1294647 Fluid pressure control valves CORNING GLASS WORKS 2 June 1970 [11 June 1969] 26522/70 Addition to 1273579 Heading F2V [Also in Division G3] An arrangement to adjust a cooling fluid valve comprises a first actuator, operating in response to an output signal, engaging with a cross arm attached to the valve, and a second actuator of lesser force acting oppositely to the first.  The arrangement has particular application in a glass moulding machine as disclosed in parent Specification wherein a glass moulding machine carrying a plurality of moulds the temperatures of which are detected in sequence at a sensing station has conical cooling air flow valve 16 adjusted in correspondence to the difference between sensed and set temperature signals. As each mould dwells at the sensing station a contact (TDCA) actuated by a machine timing drum is closed hence an electromagnetic valve 6a controls piston 6c to advance a distance proportional to the difference signal. If piston 6c contacts roller 22a on arm 22, valve 16 is rotated correspondingly. Slightly later another timing drum contact (TDCB) is closed actuating an electromagnetic valve (17) reversing connections to conduits 8, 9 causing the second actuator piston 7a to advance thus contacting roller 22b. As the force of piston 7a is lower than that of piston 6c this has no effect, but if the travel of piston 6c had been less than an amount necessary to contact roller 22, piston 7a would rotate clockwisely the valve 16 until roller 22 contacts piston 6c thus reducing the cooling air flow to the moulds. At some slightly later time contacts (TCDA, TCDB) open and the pistons retract so that they are clear of the moving parts of the machine which then advances the next mould into the sensing position.  The rams may be operated by pressurized fluid such as compressed air.
Patent GB-791849-A (GB)
Title: Overload relief mechanism
IPC: F16D43/202
Filed: 1956-08-30
Abstract: 791,849. Overload release clutches. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 30, 1956 [Sept. 2, 1955], No. 26571/56. Class 80 (2). An overload release clutch comprises members 10, 11 with interengaging tapered teeth 13, 14, the member 10 being freely rotatable on a shaft 16 whilst the member 11 is axially slidable thereon through rows of balls 21 engaging in grooves 23, 24 in the shaft 16 and member 11 respectively. The member 11 is spring-loaded into engagement with member 10 by a spring 32 acting through a thrust washer 33 on to a ring of balls 30 which engage a conical surface 31 on the member 11, the spring 32 abutting at its other end on an adjusting nut 34 in a housing 35 fixed to the shaft 16. The housing 35 has a conical surface 37 also co-operating with the balls 30 to urge them inwardly in co-operation with the loading of spring 32. On a pre-determined torque load the teeth 13, 14 are forced apart against the spring-loading and the balls 30 are moved outwardly up the conical surface 31 on to a larger diameter portion 43 of the member 11. The clutch will remain disengaged until the member 11 is moved by a plunger 25 coupled .thereto by a radial pin 26 to re-engage the teeth 13, 14 and restore the balls 30 to their original position. The resetting may be done manually or by means of a solenoid and armature when a switch is closed. The release of the clutch may actuate, through the plunger 25, a switch to cut off the driving motor and/or operate an alarm or signal light. The effect of centrifugal force on the balls 30 enable a greater torque to be transmitted on the starting of a driven machine than at normal operating speed.
Patent GB-601771-A (GB)
Title: Improvements in or relating to the manufacture of micaceous insulating materials
IPC: H01B3/08
Filed: 1945-10-11
Abstract: A micaceous insulating material is made by mixing ground mica, phlogopite, or muscovite with a compound or compounds containing boron and lead oxide, cold pressing the mixture, drying, subjecting to a gradual rise of temperature, and cooling or moulding.  The mica is ground to pass a 120 mesh screen and is thoroughly mixed dry and subsequently in the presence of water with a frit prepared by heating together an intimate mixture of 2 1/2 parts by weight of lead oxide to one part of boric acid, cryolite, in amount of 1-4 per cent of the mixture, being added if desired.  After cold pressing and careful drying, the mixture is fired, further pressed or, if desired, forced into a mould while plastic, annealed, and cooled.  Specification 532,824 is referred to.
Patent GB-843354-A (GB)
Title: Improvements in hydraulically operated supporting devices
IPC: E21D15/44
Filed: 1957-08-23
Abstract: 843,354. Mine roof supports. BOSCH G.m.b.H., R. Aug. 23, 1957 [Aug. 25, 1956], No. 26612/57. Class 20(2) [Also in Groups XXIX and XXX] A hydraulic pit prop comprises a ram 9 Fig. 1 sliding in a cylinder 10 having a pressure chamber 25 which receives hydraulic fluid from a pipe 15 and a valve comprising a closure member 38 to extend the prop, and a control chamber 32 containing a piston 34 responsive to hydraulic pressure to open the member 38 and release pressure fluid from the chamber 25 via a pipe 16 to collapse the prop. To set the prop, pressure fluid is pumped at 1 into the chamber 25 via the pipe 15 and bores 50, 51 and 52 in the head 18 of the ram 9 raising a spring loaded closure member 38. Fluid in an annular storage chamber 26 is concurrently forced into the chamber 25 via bores 53, 35, 36 and 52. A spring loaded core 44 acts as an excess pressure valve for the chamber 25. To remove the prop, a control mechanism 3 is actuated to force fluid through the pipe 16 to raise the piston 34, opening the member 38 and also connecting the bore 53 with the control chamber 32 so that fluid flows from the pressure chamber 25 to the outside via pipe 15 and to the storage chamber 26. The moving parts are lubricated by fluid entering a guide ring 19 via the bore 51 or through a slot (not shown between the guide ring and the inner wall of the cylinder. The guide ring 19 is made of synthetic material an( secured by a pin 20. Elastic sealing rings 22 are supported by abrasive resistant rings 23 having cross-sec tions of right angled triangles. In the embodiment of Fig. 2, the interior: of two telescoping members 54, 58 define one pressure chamber, a guide ring 59 around the lower end of the inner member 58 being held betweer a screw tapped ring 60 and a spring ring 61. To raise the prop, fluid from a pipe 7 enters the working chamber via an external control cylinder 7( containing a closure member 80. Tc collapse the prop, fluid is introducec via a pipe 8 to displace a piston 84 tc open the member 80 and release fluid from the prop yia the pipe 7. Ar excess pressure valve 86 is providec and an internal spring 66 assists ir the collapse of the prop.
Patent GB-824456-A (GB)
Title: Improvements in the polymerisation of butadiene
IPC: C08F136/06
Filed: 1957-08-23
Abstract: Butadiene is polymerized at a temperature between - 25 DEG  C. and + 50 DEG  C. using a catalyst formed from titanium tetrachloride and an organo aluminium compound of the formula <FORM:0824456/IV (a)/1> where R1 is phenyl, an alkyl substituted phenyl or a naphthyl radical, R2 a hydrogen atom, an alkyl radical with one or two carbon atoms, a phenyl or substituted phenyl radical or a naphthyl radical, m is 1 to 3, n is (3 - m), in a mol. ratio of at least 0.5 to 1, said catalyst being used in an amount of from 0.1 to 10% by weight with reference to the polymer.  Specified organo-aluminium compounds include aluminium-tri-(2phenyl-ethyl), aluminium-tri-(2-phenyl-propyl), aluminium - tri - (2,2 - diphenyl - ethyl), aluminium di - (2 - phenyl - ethyl) - monochloride, aluminium - di - (2 - phenyl - propyl) - monochloride, aluminium - di - (2,2 - diphenyl - ethyl)-monochloride and aluminium - (2 - phenylpropyl)-dichloride.  The polymerization may be carried out in the presence of an inert diluent, e.g. butane, pentane, hexane, cyclohexane, methyl cyclohexane and isopropylcyclohexane. In the examples, butadiene is polymerized in the presence of reaction products of titanium tetrachloride and (1) aluminium-tri-(2-phenylpropyl), (2) aluminium - di - (2 - phenylpropyl) - monochloride, and (3) aluminium - (2-phenyl - propyl) - dichloride.  The products contain a high content of 1 : 4-trans-polybutadiene.  Specifications 804,079 and 804,083 are referred to.
Patent GB-1006904-A (GB)
Title: Improvements in or relating to gas chromatography
IPC: G01N30/32
Filed: 1962-07-11
Abstract: 1,006,904. Gas chromatography. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. July 11, 1962 [July 13, 1961], No. 26646/62. Heading B1L. The outlet end of a gas chromatography column is subdivided into a plurality of capillary channels 3, the number and arrangement of which is such that a constant gas vector speed is obtained throughout the outlet end of the column. As shown, the column head 1 is attached to the body 2 of the column by a collar and is provided with sixteen channels. The top 4 of each channel is internally threaded to receive the externally threaded head of a capillary tube whose body is housed within the channel 3. The tubes may have a diameter of 0.5 mm. An example is given relating to the separation of pentane from a gaseous mixture using a column packed with bricks saturated with dinonyl-phthalate.
Patent GB-261352-A (GB)
Title: Improvements in reversible internal combustion engines
IPC: F01L13/00
Filed: 1926-10-25
Abstract: 261,352. Grayson Engine Co., Ltd., (Assignees of Grayson, G. W.). Nov. 11, 1925, [Convention date]. Reversing.-In order to obtain automatic angular adjustment of a fuel-injection cam 8 on reversing, it is formed on a sleeve driven from the cam shaft 9 by means of a key 10 engaging in a keyway 11 of sufficient width to allow for the necessary lag on reversal. As shown, the cam has swells 7 actuating fuel injection valves through levers 4 and spindles 12.
Patent GB-1035627-A (GB)
Title: Improvements in or relating to gas shielded arc welding apparatus
IPC: B23K9/173
Filed: 1964-06-26
Abstract: 1,035,627. Welding by fusion. GRIESHEIM G.m.b.H. June 26, 1964 [June 27, 1963], No. 26674/64. Heading B3R. In gas-shielded arc welding apparatus in which shielding gas is fed to a welding torch 1 through a control pipe 9 and a main pipe 5, a valve 12 operated when welding is completed allows pressure to build up gradually in the control pipe 9 to operate a pressure responsive valve 8 after a predetermined delay to cut off gas flow through the main pipe 5. The delay serves to provide a flow of inert gas around a non-consumable electrode, e.g. of tungsten, to prevent deterioration of the electrode. The valve 12 may be associated with the welding current switch. Throttles 7, 10 and a regulating valve 6 are provided in the pipes 5, 9. An adjustable spring in the valve 8 may be used to determine the delay.
Patent GB-1467874-A (GB)
Title: Hair dyeing composition
IPC: A61K8/365
Filed: 1974-06-17
Abstract: 1467874 Hair dyeing composition COMBE Inc 17 June 1974 [29 Aug 1973] 26733/74 Heading D1B Hair dyeing compositions comprise sulphur and the water-soluble reaction product of bismuth citrate and triethanolamine in an aqueous vehicle. They are prepared by reacting bismuth citrate and triethanolamine in aqueous medium with heating to form a clear solution and the sulphur, previously ground in admixture with water and a wetting agent, is added to the cooled solution. Further adjuvants specified are propylene glycol, alcohol, polyvinylpyrrolidone and optionally a perfume. Brownish tones are obtained on application to hair.
Patent GB-1512837-A (GB)
Title: Seals for the passage of wire between regions of different pressure
IPC: C23C14/56
Filed: 1975-06-24
Abstract: 1512837 Seals ELECTRICITY COUNCIL andJOHNSON &NEPHEW (NON-FERROUS) Ltd 22 April 1976 [24 June 1975] 26799/75 Heading F2B A seal for permitting the feeding of a wire 23 through a wall 13 separating regions at different pressures comprises a pair of dieshaped elements 19, 20 located one in each of a pair of holders 22 mounted in the ends of a tube 10 which has a branch tube 26 for pumping air from the tube and has a wire guide 25 provided with a conical bore located adjacent the element 20. In a modification, a water jacket 30 surrounds a tube 10 and cooling water is introduced through an inlet pipe 31 and leaves through an outlet tube 32.
Patent GB-362863-A (GB)
Title: A method of and mechanism for automatically severing the terminal threads of a stitched book
IPC: B42B2/02
Filed: 1930-09-08
Abstract: 362,863. Sewing-machines. BREHMER GEB., 107, Karl Heinestrasse, Plagwitz, Leipsic, Germany. Sept. 8, 1930, No. 26830. Convention date, July 23. [Class 112.] Book-stitching machines; thread-cutters.-A n i d l e or locking stitch is made after stitching the final section of each book, and the thread is automatically severed adjacent this stitch. The book sections carried in the members 23 are stitched in the usual way by the needle N. The section covers a recess 11 in the carrier 23, preventing a finger 25 of the member 25, 26 from entering this recess during the stitching. The finger 25 is thus carried forward by the section, rocking the shaft 24 to the position shown in Fig. 4, where the arm 26 engages a stud 28 to uphold the arm 29. This prevents the lever 17, Fig. 1, and roller 28 from following the cam 15. The thread pulling member 14, rigidly mounted on the arm 13 pivoted to the arm 20 of the boss 19, on which the arm 17 is mounted, is thus held inactive in its forward position. When the stitching is complete, the carrier travels forward towards the needle N once for making the idle stitch. The finger 25 is no longer restrained by a book section so that it enters the recess 11, tripping the arm 26 and releasing the follower 18 to follow the cam 15. This reciprocates the thread selector 14, which engages the thread adjacent the idle or locking stitch on its completion and pulls it into a position across the cutter blade 21. As the next book sections are fed to the needle N, the thread held by the selector is pressed into the blade and severed.
Patent GB-885151-A (GB)
Title: Improvements in or relating to anamorphic optical systems
IPC: G02B13/08
Filed: 1958-08-21
Abstract: 885,151. Anamorphotic lens systems. J ACOBSEN, J. L. W. Aug. 21, 1958, No. 26943/58. Class 97(1). The system comprises an objective and an afocal anamorphotic lens system including a first anamorphoser adapted to produce an image-compression in a first direction and a second anamorphoser adapted to produce an image-expansion in a second direction at right angles to the first direction, the imagecompression factor in the first direction and the image-expansion factor in the second direction having a quotient equal to the desired anamorphotic factor of the whole system. The first anamorphoser may comprise a rear positive cylindrical component and two spaced negative cylindrical components and the second anamorphoser may comprise a positive cylindrical component and a rear negative cylindrical component, the negative cylindrical component of the second anamorphoser and one of those belonging to the first anamorphoser having equal power and preferably been constituted by a single spherical component. In Fig. 5, the first anamorphoser is formed by lenses 5, 7, 2 and the second one by lenses 3, 9. In the example of Fig. 6, a sphere-cylindrical doublet L 3 , L 4  serves to achromatise the lenses L 1 , L 2  and lenses L 5 , L 7  achromatise lenses L 6 , L 8 . Optical data are given for the embodiment of Fig. 6.
Patent GB-784733-A (GB)
Title: Improvements relating to electrical apparatus for measuring torsional forces or oscillation in rotating bodies
IPC: G01H1/10
Filed: 1955-09-21
Abstract: 784,733. Electric indicating systems. DAIMLER-BENZ AKT.-GES. Sept. 21, 1955 [Sept. 23, 1954], No. 27007/55. Class 40 (1). Apparatus for measuring the torque transmitted by a shaft, or for measuring the oscillations of a shaft during rotation, comprising two normally balanced coils 1, 2 mounted on the shaft whose inductances are changed during torque transmission or with shaft oscillation, and measured in a bridge circuit B, is characterized in that the bridge balancing resistors 3, 4 are also mounted on the shaft, the bridge input and output being coupled to stationary equipment via transformers having one rotating winding S1, S3 on the shaft 5, and one stationary winding S2, S4 so that no slip-rings are required. Windings S1, S3 are disposed on the shaft 5 in U-shaped yokes 7, 7a facing outwards, and windings S2, S4 are disposed in a housing 14 in similar U-shaped yokes 15, 16 facing inwards, the coil pairs being magnetically shielded from each other by screens 19. Specifications 762,668 and 773,582 are referred to.