baber/WOPTO huggingface dataset:
Patent GB-1448965-A (GB)
Title: Brake booster with integral accumulator
IPC: B60T13/14
Filed: 1975-01-31
Abstract: 1448965 Brake boosters BENDIX CORP 31 Jan 1975 [22 Feb 1974] 4370/75 Addition to 1399037 Heading F2F In an improvement in or modification of the brake booster of Specification 1,399,037 which has an integral accumulator to provide an emergency power supply, a housing 22 has an inlet port 12 connected to a pressure source such as a steering pump 18 and defines a pressure chamber 24, a first valve 32 is actuated by an operator for controlling fluid communication between inlet and return ports 12, 16 and the chamber 24, a piston 100 is slidable in a bore 98, defines a compartment 102 and is urged thereinto by a spring 106, a relief valve 126 communicates the compartment to the inlet port 12 when the pressure differential reaches a predetermined level and a portion of fluid entering the inlet port 12 is diverted to the compartment and a second valve 118 is responsive to actuation of the first valve 32 and to failure of fluid pressure from the inlet port to connect the chamber 24 with the compartment 102. The valve 118 includes a stem 120 extending into the chamber 24 and valve 32 has a sleeve 66 slidably mounted thereon and carrying an annular member 72 which engages stem 120 to operate valve 118 when the valve 32 is moved through its entire stroke until it engages a plug 42.
Patent GB-632987-A (GB)
Title: Improvements in or relating to devices comprising an incandescent-cathode rectifier
IPC: H01J17/14
Filed: 1946-02-13
Abstract: 632,987. Thermionic power converters. PHILIPS LAMPS, Ltd. Feb. 13, 1946, No. 4484. Convention date, April 11, 1941. [Class 39 (i)] To reduce the danger of back-firing in a lowpressure gas- or vapourfilled rectifier having an incandescent cathode and a magnetic field to reduce the arc voltage, the anode is so shaped and arranged that those magnetic lines of force which intersect the cathode do not intersect the anode ; the active surface of the anode, either a cylinder or a flat ring, or a sector thereof subtending an angle of at least 120 degrees at the axis or centre, is coaxial with the field; the axial length of the cylinder or radial depth of the ring is not less than the mean diameter of the magnetic poles; and the magnetic field strength at the anode is small compared with that at the cathode. The filling may be mercury at 0.001 mm. In one form, a cylindrical anode 3, Fig. 1, surrounds the cathode 2 and the field from external poles 8, 9 causes the visible discharge to be confined to the hatched area and to be intercepted by cathode-connected shields 10, 11. Internal poles 22, 23, Fig. 2, may themselves form the intercepting electrodes. The cathode 21 is surrounded by a screen 26 which prevents it from " seeing " the anode 20 ; further screens 24, 25 are provided. The anode may be a disc 15, Fig. 3, situated at the neutral point of the magnetic field of internally-arranged dipoles 16 ; a screen 17 for the cathode is again provided. The field may be further diverted from the active face of the anode by making the. anode of magnetic material. A number of anodes may be arranged as sectors of the cylinder or disc. Specification 396,928 is referred to.
Patent GB-711219-A (GB)
Title: Fluid pressure valve
Inventor: TREVASKIS HENRY WILLIAM
IPC: F16K11/16
Filed: 1951-02-24
Abstract: 711,219. Fluid-pressure actuated valves. DUNLOP RUBBER CO., Ltd. Jan. 29, 1952 [Feb. 24, 1951], No. 4546/51. Class 135 A fluid-pressure control valve, e.g. for a gun-cocking mechanism, comprises a housing having an inlet pressure chamber 27, an outlet 3 and an exhaust opening 59, 48, a spring-loaded inlet valve 7, 23 preferably of the type described in Specification 704,342, an exhaust valve 29, 36, cam means, e.g. the surfaces 56, 57 on the link 52 to the spring- loaded lever 50, which move transversely to the housing to act on a roller 38 carried by a slidable means 35 to first close the exhaust and open the inlet valve against the spring 9, e.g. through a rod 32 connecting the exhaust valve seat 29 to the sleeve closure member 7, and which move axially under fluid pressure against a spring 47 to close the inlet valve when a predetermined outlet pressure is reached to open the exhaust valve. The inlet valve comprises a fixed sleeve 12 within which and the member 7 slides a ported sleeve 21 carrying an external rubber annulus 23 on which the chamfered ends of the sleeves seat. The exhaust valve 36 opens against the spring 47 acting through a plunger 39 carrying a roller 42 which contacts the back 53 of the cam link, to pass pressure fluid through exhaust ports 59 and baffle 48.
Patent GB-559475-A (GB)
Title: Hydraulic forging press
IPC: B21J9/12
Filed: 1943-03-22
Abstract: 559,475. Forging-presses. LORANT, H. March 22, 1943, No. 4650. Convention date, March 21, 1942. [Class 83 (iv)] A hydraulic forging press has two sets of work-holding dies movable alternatively into forging and unloading positions, means for opening and closing the dies being automatically connected to and disconnected from the movable die member as the die moves to and from the reloading position. The rain cylinder is supported on columns 7, that straddle a bed 2 in ways of which rams 41 move a slide 3 carrying castings 30 each having lower ways 31 and upstanding and overhanging flanges 32 between which the blocks 34 carrying the grid sections 18 of the dies are secured and the blocks 35 carrying the movable sections 16 are guided. Screws 36, 37 provide for centring the die with respect to the press ram and the blocks 35 slide on rods 38 screwed into the blocks 34 and carry headed bolts 46 that in the unloading positions engage with swivel heads 48 carried by the rams of double acting hydraulic cylinders 43. The switch heads are normally maintained in operative position by springs 52 but can be manually disengaged at any time if necessary. The press ram 11 carries a crosshead 10 guided in the columns 7 and mounting a holder 28 for the die 26 shown as a die for upselting the ends of aircraft propeller blades to form securing bosses. The cross head is also fitted with a sleeve 18 in which slides a conical jacket 17 that engages the correspondingly coned exterior of the closed dies and clamps them against opening under the upse'ting pressure. The jacket 17 retires into the sleeve 18 as the unsetting stroke proceeds under constant resistance afforded by hydraulic rams 24. The initial position of the jacket is determined by bolts 20. Small rams 13 located as shown in Fig. 3 are provided to return the main ram. The castings 30 and bed 2 provide clearances permitting long work to project below the dies as shown in Fig. 6.
Patent GB-946888-A (GB)
Title: An improved window structure
IPC: E06B3/64
Filed: 1962-02-07
Abstract: 946,888. Double glazed windows. ALUCO A.G. Feb. 7, 1962 [Feb. 7, 1961], No. 4656/62. Headings E1J and E1R. A double glazed double rolling window comprises panes 3 held in profiled aluminium sashes 2 by mounting strips 5 of a plastics material or rubber, particularly foam rubber, and spaced apart by a distance frame 4 of a material of poor heat conductivity. Between each sash 2 and runner 7 are sealing strips 9 of a velour weave. The space between the distance frame 4 and the panes 3 of one sash is filled in with putty 15, and the distance frame 4 itself may be fixed to the sash either by locating strips 10 (as shown), by a single locating strip slotting into the distance frame (Figs. 3a, 3b, not shown), or by sitting in a groove in the sash (Fig. 3c, not shown).
Patent GB-220245-A (GB)
Title: Improved guide and fair-lead for the drag rope of a drag-line excavator
IPC: E02F9/14
Filed: 1924-02-25
Abstract: 220,245. Lobnitz & Co., Ltd., and Bedgrood, H. O. Feb. 25, 1924. Fair leads.-A fairlead for the drag-line of a drag-line excavator comprises bifurcated hinge pieces to which plates are secured and which carry the fair-lead pulleys. The hinged pieces are of forged steel and are pivotally secured to forged steel brackets on the excavator structure. Co-operating therewith is a guide comprising horizontally arranged but slightly inclined pulleys pivotally secured in channel bars secured to the excavator structure. The hinge pieces 1, to which are riveted the steel plates 2, provide bearings for spindles 3, on which pulleys 4, 4<a> are rotatably mounted, and are pivoted to forged steel brackets 6 on the platform 5 by means of pins 7. A guide mounted in the platform 5 comprises a rectangular slot 8 along the edges of which are riveted channel bars 9, 9<a> providing bearings for spindles 10 on which are mounted sheaves 11 receiving between them the drag-line 12. Chafing of the drag-line 12 is minimized by giving an outward set at 16 to the plates 2.
Patent GB-803369-A (GB)
Title: Process of bonding glass articles and compositions for use therein
IPC: C03C27/10
Filed: 1956-02-15
Abstract: A bonding composition for uniting glass surfaces comprises a silica aquasol containing 5 to 100 per cent of a water-soluble or water-dispersible non-ionic, film-forming, synthetic or natural organic polymer having a molecular weight above 500.  Specified polymers are water-soluble polyvinyl alcohol or partially hydrolysed polyvinyl acetate, polyglycerols and modified natural polysaccharides, e.g. methyl cellulose as dextrin or starch. Preferably the pH of the solution is at least 8 and the polymer is present in amount from 5 to 25 per cent by weight of the weight of the silica.  U.S.A. Specifications 2,244,325, 2,375,738, 2,515,949 and 2,572,578 are referred to.ALSO:An adhesive composition for uniting glass surfaces comprises a silica aquasol containing 5 to 100 per cent of a water soluble or water-dispersible non-ionic film-forming synthetic or natural organic polymer having a molecular weight above 500.  Specified polymers are water-soluble polyvinyl alcohol or partially hydrolysed polyvinyl acetate, polyglycerols and modified natural polysaccharides, (e.g. methyl cellulose, dextrin or starch).  It is preferred that the pH of the solution is at least 8 and that the polymer is present in from 5 to 25 per cent of the weight of the silica.  U.S.A. Specifications 2,244,325, 2,375,738, 2,515,949 and 2,572,578 are referred to.
Patent GB-857095-A (GB)
Title: Improvements in or relating to shaving heads for dry shavers
IPC: B61L29/20
Filed: 1958-02-13
Abstract: 857,095. Dry shavers. HUBNER, O. Feb. 13, 1958 [Feb. 13, 1957; April 11, 1957], No. 4814/58. Class 131 A dry shaver head comprises an apertured screening foil 2 and a cutter foil 3 moved relatively to the inner surface of the screening foil by a carrier 4 which has a curved bearing surface for the cutter foil. The foil 2 is clamped in a double base plate 1 and the cutter foil 3 is fastened at 5, 6 to the carrier so as to be spaced therefrom at 19 and to bear against the part 20 of the screening foil. The application of shaving pressure 21 as shown in Fig. 2 deforms the foils utilising the spaces 17, 18 and providing cutting co-operation over the region 22, 23 without the provision of elastic support for the carrier. The carrier is preferably of polystyrene and has ribs between which are engaged locating projections from the apertured cutting foil, which has transverse bands of inclined cutting webs 24, holes 27, 28 for cutting long hair, and fixing apertures 29, 30.
Patent GB-405117-A (GB)
Title: Improvements in or relating to electric filters
IPC: H03H9/62
Filed: 1933-02-16
Abstract: 405,117. Filters ; valve amplifying circuits. PIERCE, G. W., Harvard University, Cambridge, Massachusetts, U.S.A. Feb. 16, 1933, No. 4841. [Classes 40 (iii) and 40 (v).] A frequency-discriminating filter comprises a magnetostrictive coupling between two circuits and means for preventing other coupling therebetween. As shown, the filters 20, 19, 49, 56 act as input, intorvalve and output transformers coupling an input circuit 2 through valves 4, 34, 50 to an output circuit. The filters are all of the same construction as filter 19 which comprises two coils 14, 18, surrounding a magneto-strictive rod, tube &c. 16 of the metal known under the Registered Trade Mark " Monel " for example. The coils are electromagnetically shielded by enclosure in metal tubes 60, 62 separated by a wall 64, through an aperture 66 in which the core 16 passes. The core is supported on a rod 76 passing through a radial aperture 78 in the wall 64, and is polarized by permanent magnets 80, 82. In a modification, the tubes 60, 62 may themselves be the magnetostrictive cores one winding being inside and one outside and the coils may be movable to enable the intensity and sharpness of frequency selection to be adjusted. The output filter is fed from valve 50 through a condenser 55 and the coils of the filters may be tuned by condensers. One side of each of the coils is earthed, as shown, and preferably the shielding members are also earthed.
Patent GB-355193-A (GB)
Title: Improvements in or relating to pupin coil sections for marine communication cables
IPC: H02G15/14
Filed: 1930-02-13
Abstract: 355,193. Inductances. S I E M E N SSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 13, 1930, No. 4904. Convention date, April 19, 1929. Void [Published under Sect. 91 of the Acts]. Addition to 292,971, [Class 37, Electricity, Measuring &c.]. [Class 37.] The Pupin coil sections of loaded submarine cables according to the parent Specification are laid in adjacent rows with their faces touching each other. The coil sections 2, 3 are embedded in a cylindrical coil-piece 1 which is also provided with grooves for the cross connections 4, 5. Further rows of coils having the same or different dimensions can be arranged with their axes at right-angles to each other. Tensioning devices 20 are provided for drawing the coil sections into position. The coil-piece may be wholly or partly elastic, and may be provided with electromagnetic or electrostatic screens for both coils and connections.
Patent GB-125696-A (GB)
Title: Improvements in or relating to the Vulcanisation of Rubber and similar Materials.
IPC: C08K5/00
Filed: 1918-03-20
Abstract: 125,696. Dunlop Rubber Co., and Twiss, D. F. March 20, 1918. Vulcanizing materials and compositions.-An accelerator of vulcanization consists of caustic alkali dissolved in an organic compound (other than glycerol or glycol) of predominant hydroxylic character such as butyl or amyl alcohol or phenol. The compounds in question are limited to those that are fluid at the ordinary temperatures or are fusible at about 120‹ C. Specification 110,059 is referred to.
Patent GB-283361-A (GB)
Title: Improved construction of damping device for steering heads of motor-cycles and similar vehicles
IPC: B62K21/08
Filed: 1927-02-22
Abstract: 283,361. Lockley, H. Feb. 22, 1927. Steering - mechanism. - A steering. damper for motorcycles &c. comprises a resiliently-expansible collet a concentrically attached to the steering-stem, a sleeve e carried by the usual damper arm d secured to the cycle frame, and handoperated means for expanding the collet to cause it frictionally to grip the sleeve. The collet is split diametrically, and has a tapered bore a<3> to receive a tapered plug g, the lower end g<2> of which is screw-threaded to engage the threaded lower end of the bore a<3>, whereby the collet is expanded on rotation of the plug g by means of a milled head g<2>. A spring i is interposed between the head g<3> and a cap h engaging an upper flange on the sleeve e. The collet a is provided with a flanged base a<5>, and is rigidly fixed by a screw shank and a nut as to a bracket c adapted for attachment to the steering-stem.
Patent GB-1486484-A (GB)
Title: Process and installation for sorting and arranging oblong shaped articles
IPC: B65G47/31
Filed: 1975-02-06
Abstract: 1486484 Conveying and grouping bricks STAMICARBON BV 6 Feb 1975 [7 Feb 1974 29 April 1974] 5129/75 Heading B8A Bricks initially on a conveyer 1 are arranged in a desired orientation and grouping on a conveyer 10, by being fed to a series of conveyers 2, 3, and 4, which have progressively increasing speeds. The bricks are engaged by a rotating member 14 having radially projecting members 15, and by guide members 5<SP>1</SP>, 5<SP>11</SP>, the downstream ends of which are formed by rollers 11, 12. The guide 5<SP>1</SP> has a deflecting section 18 which can discharge selected bricks to a position outside the guides 5<SP>1</SP>, 5<SP>11</SP>. The deflected bricks then pass to a recycling loop 19, 20, 21. In a modification (Fig. 2, not shown) four sets of guides 5<SP>1</SP>, 511, are arranged in parallel.
Patent GB-297279-A (GB)
Title: An improved hearth stand
IPC: F24B1/191
Filed: 1928-02-18
Abstract: 297,279. Planet Foundry Co., Ltd., and Learmouth, J. Feb. 18, 1928. Stands and upright supports. -A hearth-stand for use with firegrates comprises a table a and detachable two part extensible legs, the upper part d of each leg being secured by lugs e bolted to lugs b, and being positioned by engaging behind an overhanging lip c on the table. The engaging faces of the two parts of the leg are serrated, the parts being secured together by a stud j on the upper portion passing through a slot m in the lower. The upper and lower parts of the leg are respectively of T and inverted T-form.
Patent GB-432222-A (GB)
Title: Improvements in sand blast apparatus applicable for separating dust from heavier material
IPC: B24C9/00
Filed: 1934-02-17
Abstract: 432,222. Sand-blast. ST. GEORGE'S ENGINEERS, Ltd., Ordsall Lane, Trafford Bridge, Salford, and WILSON, F. W., Silverwood, Washway Road, Sale, Cheshire. Feb. 17, 1934, No. 5268. [Class 60] [See also Group II] Apparatus for separating dust and other light matter from heavier material, for example, from abrasive after its use in sand-blast apparatus, comprises a hopper A with a discharge aperture a opening into a chamber B into which enters a pipe leading to an exhaust system. Beneath the aperture a is a distributer plate D on to which the abrasive &c. falls, and from which, after piling up, it falls over the edge and past a head E on the pipe in which are slots e ; the light matter is drawn into the pipe and the heavier abrasive material falls into a chamber c. The plate D may be flat and circular, and carried by an adjusting screw d, whereby the rate of flow of the material from the hopper may be controlled, or the plate may be of conical form and carried by a screw, and the head of the pipe formed with louvres with inclined inlets. In another form, Fig. 6, the head E is rectangular with side slits e and the plate is in two laterally and vertically adjustable parts D, D<1>, a baffle F also being provided ; in another form the plate is inclined at the sides and fitted with laterally adjustable flanges, the rate of flow of the material being controlled by an adjustable sleeve on the hopper outlet. In the construction shown in Fig. 9, the head has an inner shell E and an outer shell E<1>, with slits e, el, respectively, the inner shell also acting as a baffle ; the plate D is flat and circular, and is carried by an adjusting screw d.
Patent GB-1338337-A (GB)
Title: Cadmium sulphide thin film sustained conductivity device and method for making same
IPC: H01L21/00
Filed: 1972-02-04
Abstract: 1338337 Semi-conductor devices HUGHES AIRCRAFT CO 4 Feb 1972 [4 May 1971] 5314/72 Heading H1K A field sustained conductivity device (i.e. a device which responds to incident radiation by producing a change in its conductivity which is sustained when the radiation ceases so long as an impressed electric field is maintained) comprises a first electrode, a layer of CdS deposited in vacuo under conditions in which the walls of the chamber are cooler than the first electrode and then subjected to a heat treatment in a non-sulphur-containing atmosphere, and a second electrode in the form of a composite film of two materials having diverse conducting properties adjacent to the layer of CdS. A continuous metal film may be applied on top of the composite film. As shown, Fig. 1, a glass substrate 8 is provided with a transparent electrode 2 of SnO 2  : Sb and a layer 6 of CdS is vacuum deposited. The CdS is heat treated in a non- sulphur-containing atmosphere, e.g. Ar, N, or air, a discontinuous conductive layer 38 is produced by co-depositing Au and SiO, and a continuous metal overlayer 40 is applied to complete the top electrode. The discontinuous conductive layer may comprise a metal/dielectric, metal/semiconductor or semiconductor/ dielectric mixture. The metal may be selected from Au, Al, Ag, Pt and Sn, the dielectric from SiO and MgO and the semiconductor may be Ge. Alternatively a monolayer of metal particles may be applied and covered with a layer of SiO or CdTe, or a discontinuous metal layer may be applied by evaporation and covered with a layer of dielectric. A layer of Ag-paint may be used as the top electrode, a continuous overlayer not being required in this case. The CdS is deposited on a plurality of substrates (8) heated by quartz lamps (13) in an apparatus the walls of which are maintained at a lower temperature than the substrates. The thickness of the deposited layer is measured during deposition by a laser interferometric method.
Patent GB-525324-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D29/42
Filed: 1939-02-17
Abstract: 525,324. Centrifugal pumps. ANTI-ABRADANTS (PROPRIETARY), Ltd. Feb. 17, 1939, No. 5369. Convention date, May 30, 1938. Drawings to Specification. [Class 110 (i)] A centrifugal pump for liquids or pulp containing sand, gravel &c. has some or all of its interior parts provided with a resiliently yielding wear-resistant surface layer comprising hard granular material and rubber. The hard granular materials, which constitute a substantial part of the exposed surface of the layer, include quartz, grit, emery, corundum, flint, carbides such as silicon carbide and like natural or synthetic substances commonly used as abrasives. The surface layer may be applied by coating the surface to be protected with one or several coats of primer solution, one or several coats of rubber solution and a further coat of primer solution, each coat being applied after the preceding coat has set but while it is still in an adhesive condition, sprinkling granular material on to the produced coating and finishing with a final coat of primer solution. The pump surface may be prepared by sandblasting or by coating it with a thin layer of iron. The protective surface layer may be provided by pre-formed sheets or' rings of rubber and granular wear resistant material or it may be formed by applying to the surface a mixture of rubber and granulated material. Where the surfaces to be coated are inaccessible the coats may be applied by spraying or submerging the part in the coating liquids. Where two surfaces bear upon one another as at the impeller inlet boss, it is preferable to coat only one surface with a wear-resistant laver and the coacting surface with a coating of ordinary rubber.
Patent GB-833704-A (GB)
Title: Method and apparatus for casting hollow plastic articles
IPC: B29C41/06
Filed: 1957-02-18
Abstract: 833,704. Moulding hollow articles. MILLER, T. A. Feb..18, 1957, No. 5384/57. Class 87(2). Hollow moulds containing a liquid of thermosetting plastic material are rotated by an apparatus about a plurality of axes to obtain a uniform deposit on the mould walls. A rotatable turntable 14 carries a number of equally spaced bearings 16 which rotatably receive a number of hollow radial shafts 17 having tubular extensions 19 acutely inclined thereto, and a spindle 25 at right angles to each extension 19, carries hinged upper and lower plates 56, 57 which are clamped together and carry therebetween hollow moulds 60. Each spindle 25 is rotated by a gear 30 engaging gear 38 on a shaft 34, 31 which is coaxial with hollow shaft 19, 17, and the ratio is chosen so that when shafts 17, 19 are rotated once by individual motors 45, the moulds are rotated about spindle 25 one and a half times at an angle obtuse to the extended axis of shaft 17. The moulds are loaded at D and the turntable is then slowly rotated to pass the moulds through oven 61 and then through cooling section 68 ; the rotation of the supporting arms is stopped for the passage of the moulds through openings in the end walls of oven 61 and section 68.