baber/WOPTO huggingface dataset:
Patent GB-159806-A (GB)
Title: Improvements in and relating to radiators for internal combustion engines
IPC: F28F9/26
Filed: 1919-11-04
Abstract: 159,806. Russell, E. L. Nov. 4, 1919. Radiators, motor-car, of the type composed of a number of separate cooling - elements 11, formed of sheet metal, and with intercommunicating passages at the top and bottom forming inlets and outlets for the circulating water from and to the water-jacket, the elements being held together by a bolt 24 passing through such passages are provided with quincuncially - arranged auxiliary intercommunicating passages 16, between the upper and lower main passages. The water to be cooled enters by a main passage 22 and passes into the sections 11 through perforations in spacing-tubes 30 arranged within the intercommunicating passage which forms its inlet tube 22, and leaves by a similar passage. The auxiliary intercommunicating passages 16 are made by outwardly-extending openings in the elements 11 abutting against similar openings in adjacent elements, the abutting ends being flanged and either sweated together or secured by a suitable eyelet.
Patent GB-407993-A (GB)
Title: Improvements in or relating to signalling and like devices of the pyrotechnical flare and smoke types
IPC: F42B4/26
Filed: 1932-09-24
Abstract: 407,993. Floating flame or smokeproducing signal flares. RANKEN, F., 14, Douglas Crescent, Edinburgh, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Sept. 24, 1932, Nos. 26598 /32 and 29490 /33. [Class 9 (ii).] The flare comprises a hollow metal cylinder A containing a charge N of combustible flame or smoke producing material, a delay fuze or fuzes F adapted to fire the combustible charge a given time after the discharge of the flare from a pistol, and fusible or rupturable waterproof closures C, S at each end of the cylinder, which after its discharge from a pistol and its fall in water is kept afloat vertically by a buoyancy chamber U. The flare is held in the pistol by a wire W in conjunction with a shoulder on the flare or by a spring catch. When the pistol is fired, the bottom closure C is destroyed and the fuzes F ignited. After a given time, the fuzes ignite a primer P, which fires the main charge N and destroys the top closure S. The charge N may then be elevated by a spring G if such an arrangement is provided. The bottom of the buoyancy chamber U may be conical and may have a peripheral ring of holes.
Patent GB-735989-A (GB)
Title: Improvements in or relating to high frequency magnetic cores
IPC: H01F41/02
Filed: 1953-09-29
Abstract: 735,989. Magnetic compositions and structures. WESTERN ELECTRIC CO., Inc. Sept. 29, 1953 [Oct. 2, 1952], No. 26718/53. Class 38 (2). The magnetic properties of a ferrite core are changed by the continued application of stress, e.g. application of radial compressive stress on an annular core of Ni Zn ferrite increases the maximum permeability and retentivity so that the hysteresis loop becomes more nearly rectangular. The cores are particularly suitable for magnetic memory devices and magnetic amplifiers. The stress may be that developed in core 11 by the shrinking as it sets of the body 13, e.g. of styrene-polyester casting resin, in which it is embedded. The core may carry winding 12 or there may be a hole in the central plastic part through which the winding passes. The stress may be increased by passing a current through the winding during setting of the plastic whereby the core dimensions are altered by the propery of magnetostriction. Variable stress for testing its effects may be applied by controllable oil pressure in a rubber tube 25 encircling the core 21 and held in place in a bass casing 22 by a brass plug 23. The properties of stressed cores of Ni Zn ferrites of different compositions are tabulated and contrasted with those of Mn Zn ferrite. In general ferrites with negative magnetostriction should be compressed and those with positive magnetostriction placed in tension.
Patent GB-886561-A (GB)
Title: Improvements in or relating to semi-conductor arrangements
IPC: H01L21/00
Filed: 1959-08-05
Abstract: 886,561. Transistors. SIEMENS & HALSKE A.G. Aug. 5, 1959 [Aug. 5, 1958], No. 26760/59. Class 37. In a semi-conductor device in which one electrode contacts a metal body having good thermal conductivity, the metal body possesses at least one aperture or groove into which part of the said electrode penetrates. Fig. 2 shows a power transistor in which pellets 2, 6, of an acceptor metal, preferably indium, are alloyed to a wafer 7 of N-type germanium to form collector and emitter electrodes, respectively. Subsequently, at a temperature between the alloying temperature and the melting-point of the alloy, one side of a metal plate 1, preferably of gold-coated copper, is placed against the collector electrode 2 so that metal of this electrode penetrates a hole 5 in the plate 1 and flows through it to the other side of plate 1, after which the electrode 2 solidifies. The distance between the collector junction and the plate 1 is preferably between 20Á and 50Á. The plate 1 is secured by an adhesive mixed with alumina powder to a metal base-plate 11 into which is sealed a glass bead 9 through which three leads pass (two only being shown) for connection to the emitter electrode 6, the collector electrode 2, and an annular base electrode 4, preferably of nickel and tinsoldered to the wafer 7. A cover 12 is welded to the base-plate 11, the enclosure being evacuated or filled with dry gas, preferably oxygen, through an opening 13. The part of plate 1 which receives the electrode 2 may be coated with metal, e.g. tin, indium, or soft solder. The hole 5 may widen towards the side of plate 1 remote from the wafer 7 either continuously or in a step-wise manner, or it may be replaced by a groove in the plate, and the metal of electrode 2 may be sucked into the hole or groove by the creation of a reduced pressure.
Patent GB-889831-A (GB)
Title: Improvements in or relating to the production of compacts from metal or other powders
IPC: B22F3/08
Filed: 1958-11-14
Abstract: 889,831. Moulding powdered materials. DU PONT DE NEMOURS & CO., E.I. Nov. 14, 1958 [Nov. 20, 1957; Feb. 6, 1958], No. 26808/58. Class 87(2). [Also in Groups II and XXI] Powdered materials are compacted by placing the powder 1 in a tube 2 fastened to a plate 3 at one end and closed by a stopper 4 at the other end, wrapping a high velocity detonating explosive 5 around the tube, and detonating the explosive simultaneously by means of a cap 7. The tube may be immersed in water. Wires or rods of the material being compacted may be positioned in the powder before compaction. The air in the tube may be evacuated and replaced by an inert gas. The powder may be preheated by induction heating. Magnetic material in the powder may be orientated by applying a magnetic field. The tube may be of the same material as the powder. Specification 833,673 and U.S.A. Specification 2,648,125 are referred to.
Patent GB-207933-A (GB)
Title: Improved security box or case
IPC: E05B39/02
Filed: 1922-10-04
Abstract: 207,933. Duncan, R. H. Oct. 4, 1922. Tampering with, preventing.-A device for locking a box of the type described in Specification 142,966, comprises a hollow cylinder 4 in which a bolt 6, carrying a hasp 7, can be slid, the hasp 7 being pressed into engagement with a staple 13 on the lid by a spring 9. A plate 15 having a tongue-piece 16 is fitted over the end of the cylinder 4 to prevent the bolt being illicitly pressed inwardly to release the hasp and the whole device is covered by a sealing strip which is passed over a loop 18 and secured within the box.
Patent GB-1138277-A (GB)
Title: Speed control governors in elevator systems
Inventor: MASTROBERTE JOSEPH
IPC: B66B5/04
Filed: 1967-06-09
Abstract: 1,138,277. Overspeed prevention devices for lift winding mechanisms. OTIS ELEVATOR CO. 9 June, 1967 [28 Oct., 1966], No. 26848/67. Headings B8B and B8L. [Also in Division F2] A speed control governor for an elevator car comprises weights 36, 37 pivotally mounted on a sheave 32 over which a rope 28 attached to the car passes, a plunger axially displaceable in a bore in the sheave hub 33 in response to centrifugal movement of the weights 36, 37 such that an elevator speed control switch, a power control switch and a rope clamp 111, 123 are actuated successively at predetermined extents of displacement of the plunger. The weights 36, 37 which are adjustably spring biased radially inwardly of the sheave and are coupled together by a rod 66, actuate the plunger through a rod 75 and a cranked lever 73 pivoted to the sheave. One end of the plunger extending from the sheave directly contacts the speed control switch or switches for operation thereof. With further extension of the plunger, a shoulder thereon is brought into engagement with a cranked lever, which through a rod 207 of adjustable length operates the power switch and rope clamp if the speed switches fail to control the cage speed. Movement of a lever 222 by the rod 207 firstly releases a spring- loaded arm which actuates the power supply switch, and secondly pivots a lever 212 to release one jaw 123 of the rope clamp, whereupon this jaw gravitates into a position opposite the spring-loaded second jaw 111, to grip the rope 28 therebetween.
Patent GB-799769-A (GB)
Title: Improvements relating to electric discharge switching devices for radar equipment
Inventor: MUSKUS CLIVE ZBIGNIEW
IPC: H01J17/04
Filed: 1955-09-20
Abstract: 799,769. T.R. switches. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 18, 1956 [Sept. 20, 1955], No. 26884/55. Class 39(1). [Also in Group XL(b)] An electric discharge T.R. switching device incorporates, in a length of waveguide 3, one or more inductive irises 6 which are of metallic gauze, open network metallic mesh, or perforated metallic plate to facilitate inspection and plating or cleaning the device. Capacitive elements 4 provide the discharge gap 5.
Patent GB-1128523-A (GB)
Title: Improvements in centrifugal pumps
Inventor: BROWN ALAN KEITH
IPC: F04D29/62
Filed: 1965-06-25
Abstract: 1,128,523. Centrifugal pumps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 26, 1966 [June 25, 1965], No. 27017/65. Heading F1C. A centrifugal pump for a washing machine is supported by clamping the part 3 of the two-part casing 1, 3 between a bearing housing 7 and a support bracket 7c. The casing and impeller 4 are of semi-rigid plastics material, e.g. polypropylene. A sealing arrangement comprising a sealing ring 11, conviently of rubber, located in an annular cavity formed by interlocking portions of the casing parts 1, 3, maintains the seal between the casing parts despite relative movement therebetween due to thermal expansion and contraction. The casing parts are secured together by removable fixing clips 2. The housing 7 carries a shaft bearing 6 and a shaft sealing arrangement 8 comprising a seal 8a against water and a seal 8b against lint suspended in the water. A thrust bearing is formed by washers 9, 10 the washer 9 being secured to the impeller. The housing 7 is conveniently an aluminium die casting and makes a liquid-tight taper fit with the casing part 3. Alternatively, the housing may be sealed to the casing part 3 by an adhesive.
Patent GB-918731-A (GB)
Title: Magnetic-focusing systems for travelling-wave tubes
Inventor: MURPHY BERNARD THOMAS
IPC: H01J23/087
Filed: 1958-08-25
Abstract: 918,731. Travelling-wave tubes. MULLARD Ltd. Oct. 8, 1959 [Aug. 25, 1958], No. 27195/58. Class 39 (1). The field of permanent bar or annular magnets 1, 2, Fig. 2, is rendered uniform axially by an auxiliary bar or tubular permanent magnet 7 which also reinforces the field, the arrangement being designed for focusing the electron beam of a travelling-wave tube. Magnets 1, 2 are radially magnetized and connected by magnetic side members 12; they have polepieces 3, 5 between which the helix of the travelling-wave tube extends. Annular discs 6 of steel or ferrous alloy, as described in Specification 839,603, impart some degree of uniformity to the field to be acted on by magnet 7. Prior art discs 6 of non-uniform spacing or different thicknesses are referred to to produce a more uniform field than equally spaced discs of equal thickness.
Patent GB-369194-A (GB)
Title: Improvements in or relating to the manufacture of rayon
IPC: D01D10/00
Filed: 1930-09-11
Abstract: In the manufacture of artificial threads of low denier, a number of such threads are united to form a single heavy thread, which is subjected as such to washing and like treatment, and then divided into its component threads.  Thus, a cuprammonium solution containing 3,5-4 per cent of cellulose may be pumped through a double spinnerette into a caustic bath to produce two threads of 50 deniers, which are stretched on leaving the bath by passage over two drawing wheels of different sizes running at the same speed, or of the same size running at different speeds.  The two threads then pass through guides to a cap-twisting device which imparts a twist to each thread, twists the two threads together to a single thread, and lays the compound thread on a spool.  When the spool is filled, the thread is unwound and passed through an acid bath to remove copper, the spool being sprayed meanwhile with mildly caustic water.  The thread is drawn through the acid bath by a large cylinder on which it is wound, the cylinder preferably revolving partly in the acid bath. Preferably, also, the thread is laid on the cylinder with a traverse motion, to produce a cake with tapered edges.  The thread collected on the cylinder is washed with water, suitably by revolving the cylinder and causing a jet of water to travel along it.  The cylinder is then placed in an oven, and the thread dried.  To divide the thread into its component threads, the thread is wound on to a bobbin, which is then placed in a horizontal position in a support revolving about a vertical axis.  The thread is led through a guide and over feeding rolls, and an end is then broken off, so that the two component threads can be easily parted, each thread being led through a guide to an ordinary cap-twister.  The mounting of the bobbin as described above causes the twist previously imparted to the compound thread to disappear.  A reciprocating finger may be arranged between the final cap-twisters and the feeding rolls, to facilitate separation of the component threads.  The compound thread may contain more than two component threads, and reference is made to the use of the compound thread as such.
Patent GB-382721-A (GB)
Title: Pistons for fluid-pressure engines
IPC: F02F3/00
Filed: 1931-09-30
Abstract: 382,721. Pistons. ARMSTRONG SIDDELEY MOTORS, Ltd. and CANTRILL, H., Park Side, Coventry. Sept. 30, 1931, No. 27210. [Class 122 (i).] A piston for a radial cylinder engine is machined from a forged light alloy billet with gudgeon pin bosses 2 extending substantially the whole length of the skirt, pockets 3 above the bosses and tapering of the skirt between the bosses from the head to ribs 8. To assist lubrication the main thrust face 14 of the skirt extends below the end of the cylinder at bottom dead centre while the opposite face 13 leaves a portion 18 of the cylinder uncovered. Inclined holes 10 extend inwardly from an oil groove 11. Specification 382,722 is referred to.
Patent GB-1191905-A (GB)
Title: Metal Door-Framing
Inventor: SANDRET ROBERT JULES LOUIS
IPC: E06B1/18
Filed: 1967-06-13
Abstract: 1,191,905. Door frames. PROJETPLAST. 13 June, 1967, No. 27335/67. Heading E1J. A door frame comprises two rectilinear metal jambs each made up of two or more longitudinal sectional parts 4, 6, the part 4 being adapted to receive the end of a partition &c. 5 and the part 6 to receive the door 7, the jamb extending between and fixed to the floor and ceiling without any crossbar, the space above the door being filled by a panel (12, Fig. 1) the lower side of which is rabetted to function as a stop for the upper edge of the door. The hinges are secured to the stile 6 by nuts 14 and a resilient seal strip of plastics material 15 provides a stop for the side of the door and acts as a sound barrier and damper.
Patent GB-536528-A (GB)
Title: An improved process for the production of saturated hydrocarbons
IPC: C07C2/58
Filed: 1939-10-06
Abstract: 536,528. Hydrocarbons. STANDARD OIL DEVELOPMENT CO. Oct. 6,1939, No. 27398. Convention date, Nov. 28, 1938. Drawings to Specification. [Class 2 (iii] [Also in Group III] Saturated hydrocarbons boiling in the gasoline range are made by condensing a paraffin having at least one tertiary carbon atom with a normally gaseous olefine or polymer thereof in the presence of a catalyst containing inorganic compounds of alumiuinm and silicon. Suitable catalysts are clays which may be activated by treatment with acids (including sulphuric, hydrochloric, hydrofluoric, acetic, trichloracetic, and phosphoric acids) silica gel impregnated with alumina, co-precipitated alumina and silica gels, fuller's earth, bentonite, pumice, bleaching earths, montmorillonite, and acidtreated magnesium aluminium silicate and bentonitic clays. The clays may be activated by treatment with an acid such as sulphuric, hydrochloric, hydrofluoric, acetic, trichloracetic, and phosphoric acids and may be washed or not before drying. The catalyst may be regenerated by burning off carbonaceous deposits or by treatment with solvents such as benzene toluene, light naphthas, chloroform and #-#<SP>1</SP>- dichlor-diethyl ether ; acid treated clays may be regenerated by treatment wlth steam and then with acid. The catalysts may be made more porous by incorporating a small proportion of an organic substance such as a carbohydrate or amorphous carbon which is burnt out in an oxidizing pre-treatment. A catalyst may be prepared by mixing a silica hydrogel with aluminium nitrate solution, allowing to stand, draining, drying and heating. For the alkylation reaction the temperature may be 70-400‹F. and the reaction time 6 minutes to 13 hours ; the reaction may be effected by stages with recycling of the vapours. In the examples liquid hydrocarbons are obtained from (1) a mixture of isobutylene, normal butylene and isobutane ; (2) di-isobutylene. tertiary butyl chloride and isobutane ; (3) di-isobutylene and isobutane ; (4) di-isobutylene, tertiary butyl chloride and isobutane. The use of tertiary butyl chloride or other alkyl halide in amounts of 1-15 per cent. promotes the formation of paraffins containing 5-8 carbon atoms. The Specification as open to'inspection under Sect. 91 includes the use of catalysts comprising silica or alumina such as activated alumina, silica gel, bauxite, kieselguhr, and infusorial earth. This subject-matter does not appear in the Specification as accepted.
Patent GB-721258-A (GB)
Title: Improvements in or relating to telephone headsets and to adjustable earpads therefor
IPC: H04R1/10
Filed: 1952-10-31
Abstract: 721,258. Head-sets. STANDARD TELEPHONES & CABLES, Ltd. Oct. 31, 1952 [Dec. 3, 1951],No. 27438/52. Class 40 (4). An ear-pad 4 for a headset is made of polyvinyl chloride and is secured to the head-set by a ball-andsocket joint. The pad is sufficiently resilient to allow the ball 3 to be snapped into the socket 5. The face of the pad is slightly concave. Specification 638,920 is referred to.
Patent GB-727024-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/00
Filed: 1951-11-22
Abstract: 727,024. Knitting-machines. HODGES, L. J. Feb. 23, 1953 [Nov. 22, 1951], No. 27474/51. Class 74 (2). A circular machine for knitting sanitary towels has cutter mechanism for severing the fabric into lengths as it is being produced, each length containing a pad. The cutter mechanism is controlled by the take-down rollers, one of which 28 is pivotally mounted so as to move outwardly each time a pad passes between the rollers, the pad having been inserted into the fabric through a tube 4 from a conveyer. The roller 28 is mounted on a pivoted arm 29 carrying a catch 34 which when the roller is deflected outwards moves a detent 35 to release a rod 41 carrying clutch mechanism to connect the drive to the cutting blade 63 whereby the fabric is severed. A stop motion comprising feelers resting on the fabric may be provided.
Patent GB-1262506-A (GB)
Title: Electrostatic loudspeaker
Inventor: BOBB LLOYD JOSEPH
IPC: H04R19/00
Filed: 1969-04-25
Abstract: 1,262,506. Electrostatic speakers. L. J. BOBB, and C. C. POND. 25 April, 1969 [29 April, 1968], No. 27581/71. Divided out of 1,262,505. Heading H4J. An electrostatic speaker, such as described in Specification 1,262,505, comprises a membrane carrying a metal coating. The membrane is clamped between a metal strip extending along an edge of the membrane on the coated side and a strip of yielding material extending along the edge of the membrane on the uncoated side. The metal strip has recesses presented toward the coated side of the membrane and is in contact with the metal coating.
Patent GB-372679-A (GB)
Title: Improvements in scaping worms for centrifugal bowls
IPC: B04B1/20
Filed: 1931-10-05
Abstract: 372,679. Centrifugal machines. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm. Oct. 5, 1931, No. 27611. Convention date, Oct. 11, 1930. [Class 23.] A scraping screw for forcing separated solids along the wall of a centrifugal bowl 9 to the outlet nozzles 18, has one or more helical scrapers 5, 6 secured to the outer sides of rods 3 which are secured to end rings 1, 2 so that the whole forms a rigid structure. The separated liquid flows upwards through the holes 19 in the conical discs 17 arranged inside the scraping screw. In a modification the outlet nozzles are arranged at the central zone of the drum and oppositely acting helical scrapers. are provided above and below the nozzles. Strengthening pieces which may act as scrapers or scraper bearers are fixed between the helical scrapers.