baber/WOPTO huggingface dataset:
Patent GB-481170-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J29/43
Filed: 1936-09-07
Abstract: 481,170. Electric discharge devices. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 7, 1936, Nos. 24404 and 24405. Convention dates, Sept. 6, 1935 and. April 30, 1936. [Class 39 (i)] A secondary-electron-emitting electrode consists of a thin substantially insulating film or coating on a conductive surface, the film &c. being sensitized to produce a high emission of secondary electrons. The film &c. may consist of (a) aluminium oxide on an aluminium surface, (b) beryllium oxide on beryllium, (c) magnesium oxide on magnesium, (d) silicon oxide on silicon, or (e) Willemite on a conducting material; in all of these examples the surface may be sensitized with an oxide of an alkali metal such as caesium. The film of aluminium oxide is formed electrolytically and only sufficient alkali metal is used to form a sub-microscopic coating. The coated electrode is baked at 200‹ C. for ten minutes and oxygen is admitted. It is stated that the baking of an oxidized aluminium electrode and the introduction of oxygen, without alkali metal, produces a surface giving a considerable emission of secondary electrons. It is suggested that the positive charge left on the surface of the insulating film owing to the emission of secondary electrons, causes an attraction of electrons *from the aluminium surface and from the aluminium oxide film which shoot through the positively-charged surface. The emission persists for an appreciable time after the primary electron beam is cut off ; energization of the surface by light as well as by a primary beam reduces the secondary emission. The ratio of secondary emission to primary emission is of the order 3000. In the multiplier shown in Fig. 1, the secondary-electron-emitting electrode 7 is mounted at the apex of a V- or Y-shaped envelope 1, a photo-electric cathode 3 and an output electrode 5 being mounted in the arms, and the electron streams focused magnetically by windings 15, 17 or electrostatically. The multiplier shown in Fig. 4 has, during manufacture, a thin glass diaphragm 77 dividing the envelope to form a compartment 73 containing a secondary-electron-emitting electrode 79 and an output electrode 81, and a compartment 75 containing a photo-electric electrode 83 and two focusing electrodes 85, 87. After the electrodes 79, 83 have been sensitized separately, the diaphragm is broken by a metal ball 97. British Specifications 460,356, 469,477, and U.S.A. Specification 1,450,265 are referred to. The Specification as open to inspection under Sect. 91 includes also the use of a mosaic target, in a cathode-ray tube, formed of aluminium particles sensitized in the manner already referred to and scanned by a fine point of light. This subject-matter does not appear in the Specification as accepted.
Patent GB-1426115-A (GB)
Title: Removing hydrogen peroxide from soft contact lenses
IPC: C11D17/00
Filed: 1974-06-03
Abstract: 1426115 Hydrogen peroxide decomposition catalyst WARNER-LAMBERT CO 3 June 1974 [4 June 1973] 24406/74 Heading B1E [Also in Divisions C3, G2 and G3] A hydrogen peroxide decomposition catalyst consists of cylindrical, vertically fluted pellets of polyphenylene oxide coated with platinum black, and is obtained by treating the carrier pellets with ethanolic chloroplatinic acid followed by drying and subsequent reduction with gaseous hydrogen.
Patent GB-1324489-A (GB)
IPC: B41J1/00
Filed: 1972-05-24
Abstract: 1324489 Typewriters TRIUMPH WERKE NURNBERG AG 24 May 1972 [10 Aug 1971] 24413/72 Heading B6F Type-lever machine.-A type-lever 1 is provided with an interchangeable type-element 9 comprising a pair of spaced flanges defining a slot for receiving the end 2 of the type-lever. A locking member 13 is pivoted at 12 between the flanges and includes a resilient arcuate finger 14 which engages a recess 4 in the rear of the type-lever 1. A lug 15 engages a cut-away portion 5 on the type-lever and locates the locking member 13 in its clamping position. A nose portion 13a is shaped and positioned so that it will engage between the type 8 of another typeelement under clash conditions, thereby preventing damage.
Patent GB-409975-A (GB)
Title: Improvements in or relating to fastening devices
IPC: A44B11/26
Filed: 1933-09-04
Abstract: 409,975. Strap fastenings. KOCZIAN, G. VON, 3, Ehrwalderstrasse, Schoneberg, Berlin. Sept. 4, 1933, No. 24496. Convention date, July 1. [Class 44.] An adjustable fastening for straps, handbags, &c. shown as applied to a strap, consists of a box-like casing 3 secured to one end of the strap 1 and slidable along a row of mushroom or stud-like members 2 secured to the other end of the strap ; a projection 6<1> on a spring 6 mounted in the casing 3 is moved by a knob 8, slidable in a slot in the casing, to engage between two members 2 to hold the strap in adjusted position. The casing 3 is held in contact with the members 2 by a channel member 4 having inturned flanges 5 engaging under the heads of the members 2. In one alternative form, Fig. 6, the head of the member 2 is of considerable size ; in a further form, Fig. 5, the member comprises a rivet 11 having a head 11<1> formed of synthetic resin. If a hollow rivet is used, the projection 6<1> of the spring may engage within its head.
Patent GB-1005129-A (GB)
Title: Pneumatic conveying apparatus
Inventor: MORGAN HUBERT DAVIES
IPC: B65G51/02
Filed: 1963-06-30
Abstract: 1,005,129. Pneumatic despatch apparatus. UNITED STEEL CO. Ltd. June 22, 1964 [June 20, 1963], No. 24606/63. Heading B8A. In a pneumatic despatch system in which the carriers are driven between terminals by compressed air, an air offtake pipe 9, Fig. 1, is provided in the tube between each terminal 3 and a point near the terminal so that a cushion of air is provided to retard the carrier after passing the branch pipe. A non-return valve 10 is arranged in the pipe 9 so that a return flow is prevented when carriers are despatched from the terminal by the introduction of compressed air through a valve 8 in a supply branch 7. A solenoid-operated valve 13 releases air in front of the carrier when being despatched to the station 3 and remains open until the carrier has been removed. A proximity detector 12 is provided to cut off the air supply as the carrier approaches its destination.
Patent GB-776002-A (GB)
Title: Improvements in means for lifting and lowering loads from one level to another
Inventor: RATCLIFF EDWARD JOHN
IPC: B60P1/46
Filed: 1954-08-24
Abstract: 776,002. Fluid pressure apparatus; guided platform hoists; tail board loaders. BURTONWOOD ENGINEERING CO., Ltd. Aug. 8, 1955 [Aug. 24, 1954], No. 24621/54. Classes 78 (2) 78 (3) and 78 (4). A device for raising and lowering loads comprises a platform movable along fixed vertical guides by a horizontally disposed hydraulic ram which is operatively connected with the platform by a pair of chains or cables attached to opposite ends of the platform and to a fixed anchorage. Vertical box section members 4, 5 are mounted on longitudinals 1, 2 of a lorry chassis by means of a channel 3, and form guides for sliders 10, 11 (Fig. 4) to which the lorry tail board (not shown) is detachably attached. An hydraulic ram 31, housed in channel 3, carries pulleys 21, 30 which co-operate with cables 12, 13 extending over a system of pulleys from fixed anchorages at 22 to the sliders 10, 11. The arrangement is such that extension of the ram by an hydraulic system driven from the lorry engine and controlled by a manually operated valve, raises the tail board from the ground to the level of the lorry floor. In a modification (Figs. 7-12, not shown) the pulley system and guides are constructed so that the tail board can be elevated to the level of a second lorry floor and hydraulic jacks are provided at the rear of the lorry for relieving the springs when the loader is in operation. In a further modification (not shown) the elevator is rigidly attached to a static machine, e.g. a moulding press. Specification 647,075 is referred to in the Provisional Specification.
Patent GB-289700-A (GB)
Title: Process of producing patterns on plated knitting
IPC: D06C23/00
Filed: 1927-09-20
Abstract: 289,700. Mahler, J. Sept. 20, 1927. Designs, producing.-Designs are produced on plated knitted goods by forming the plating and the ground of two different materials, for example, wool and cotton, and printing a pattern on the fabric with caustic soda or with sulphuric acid according to whether the wool or the cotton threads are to be etched out.
Patent GB-441711-A (GB)
Title: Improvements in or relating to temperature controlling means for ovens and the like
IPC: C21D11/00
Filed: 1934-08-29
Abstract: 441,711. Temperature regulators. BARLOW, R., 28, Kingsway, London, and RALPH, J., 23, Albert Road, Worcester. Aug. 29, 1934, No. 24893. [Class 135] Temperature-regulating means for electric furnaces, ovens, and the like comprises a piston or diaphragm 11 which is subjected on both sides to pressure from a compressed air supply through a filter chamber 8 and restricted passages 9, 10. The piston is operated to open or close a switch 15 in a relay circuit 16 by regulating the escape of the compressed air from one side or the other by means of a thermostatically operated shuttle valve of the type described in Specification 416,925, which is connected to the pipes 1, 2, in accordance with the furnace temperature. The relay circuit 16 actuates the main switch 22 of the furnace heating elements 27 through a solenoid 17. Instead of the switch 22 a rheostat may be employed for regulating the furnace. A further intermediate relay may be interposed between the circuit 16 and the switch 22.
Patent GB-723624-A (GB)
Title: Encapsulating method and apparatus therefor
IPC: A61J3/07
Filed: 1951-10-24
Abstract: 723,624. Moulding capsules. SOC, GENERALE D'ENROBAGE. Oct. 24, 1951 [Nov. 10, 1950; Dec. 6, 1950], No. 24904/51. Class 87 (2) [Also in Group VI]. A process of encapsulating a material comprises the steps of suspending a film of a viscous capsule-forming medium by its peripheral edges and discharging discontinuous portions of said material to be encapsulated onto said film in such a way that it passes unsuspended before impinging on said film. Apparatus comprises a means for discharging the capsule-forming medium as an annular film, said discharge means being adapted to permit said medium to form a transverse film suspended at its periphery by said discharge means, and means for discharging discontinuous portions of the material to be encapsulated onto said film, the last said means being removed from the point where said film is formed to a sufficient distance to permit said discharge material to pass unsuspended before impinging on said film. As shown, an outer conduit 10 is situated concentrically with an inner conduit 11 so as to form an annular passageway 12 through which the encapsulating medium passes to an orifice 13 where a film 14 is formed. The material to be encapsulated passes down an inner conduit 16 which terminates at a sufficient distance above the orifice 13 to permit the said material to fall in desired portions upon the encapsulating film 14. Air pressure sufficient to extend the film 14 to form a pocket without rupture and to assist the discharge of the filled capsule, is applied through the conduit 17. A vessel 19 containing the capsule hardening fluid is situated beneath the annual orifice 13 and is provided with baffles 20 to prevent splashing of the film 14, the filled capsules falling into the bath through openings 22 of the baffles 21. For large scale operation, a closed vessel (not shown) has a lower plate 30, Fig. 7, provided with openings 31 having inwardly converging shoulders 32. An upper plate 33 has openings 34 coaxial with openings 31 but of small cross section through which the material to be encapsulated flows, a lip 34a being provided by counterboring the plate at 35. An intermediate plate 36 provides a passageway 37 for the pressure producing gas, and a passageway 38 for the encapsulating liquid. Tubes 39 having openings 41 through which air pressure is applied to the film 40a, depend from the upper plate 33 and are spaced from openings 31 in the lower plate by peripheral protrusions 42. The capsules are washed free from excess hardening medium by a rinse or spray of water. The encapsulating medium may be an aqueous solution of a water-soluble salt of alginic acid e.g. sodium, potassium, lithium or ammonium salt especially a 2 per cent solution. To produce uniform capsules air in the encapsulating medium is replaced by an inert gas e.g. carbon-di-oxide. Specification 544,507, [Group VI],. is referred to.
Patent GB-1425049-A (GB)
Title: Substituted 2-hydroxy-2-phenylethyl-amines
IPC: C07D213/74
Filed: 1973-05-25
Abstract: 1425049 2 - Hydroxy - 2 - phenylethylamines DR L ZAMBELETTI SpA 25 May 1973 [7 Sept 1972] 25082/73 Heading C2C Novel compounds I: in which the R radicals are identical and are H, CH 2 O or OH, R 1  is H, OH or CH 3 O, R 2  is 4- methyl - 1 - piperazinyl, 6 - methylpyrid - 2 - ylamino, cyclohexylamino, 4 - (2 - hydroxyethyl) - 1 - piperazinyl, morpholino, NHCH 3  or NH-n-C 4 H 9 , and R 3  is H or CH 3 , provided that when R 2  is NHCH 3 , R 3  is CH 3 , and when R 2  is NH-n-C 4 H 9 , at least one of R and R 1  is CH 3 O, and their non-toxic acid addition salts, are prepared by reducing an acid addition salt of an aminoketone of Formula II: Starting materials and intermediates.-The following compounds are prepared in the examples: # - (61 - methylpyridyl - 2<SP>1</SP>- amino) - 4- (hydroxy or acetoxy) - acetophenone, # , (N<SP>1</SP>- methylpiperazino) - 3,5 - dimethoxy - 4 - (hydroxy or acetoxy) - acetophenone, 1 - [3<SP>1</SP>,5<SP>1</SP> - dimethoxy- 4<SP>1</SP> - (hydroxy or acetoxy)] - 2 - methylaminopropiophenone, # - chloro - 4 - acetoxyacetophenone, 3,5 - dimethoxy - 4 - (hydroxy or acetoxy) - acetophenone, 3,5 - dimethoxy - 4 - acetoxy- # - bromoacetophenone, 3,5 - dimethoxy - 4 - acetoxy - benzamide, 3,5 - dimethoxy - 4 - acetoxypropiophenone and 3,5 - dimethoxy - 4 - acetoxy- α-bromopropiophenone. Pharmaceutical compositions having hypertensive or hypotensive activity, comprise a compound I or non-toxic addition salt thereof together with a pharmaceutical carrier.
Patent GB-912115-A (GB)
Title: Polyepoxide compositions
Inventor: BRUNNER HENRY
IPC: C08G59/40
Filed: 1958-08-05
Abstract: A curable composition contains a polyepoxide and boric oxide or meta-boric acid (B2O3.H2O).  The polyepoxide is preferably a polyglycidyl ether of an organic dihydric compound, e.g. bisphenol A. Optional additives include epoxidized soya bean oil, phenyl glycidyl ether, Al, TiO2, ZnO, butanol, methyl ethyl ketone, ethyl acetate, dibutyl phthalate, di-2-methoxy ethyl phthalate, and tricresyl phosphate.  Uses: Coating, e.g. wood, glass and steel; moulding; fillers, e.g. for steel panels; solders.
Patent GB-1003207-A (GB)
Title: Improvements relating to framework structures
Inventor: ANDREWS JAMES IAN
IPC: F16B12/50
Filed: 1963-06-25
Abstract: 1,003,207. Furniture joints. SANKEYSHELDON Ltd. May 11, 1964 [June 25, 1963], No. 25156/63. Heading A4H. Framework structures of cabinets or racking include members 1, 2 connected at right angles, each member having open longitudinal slots 3 leading into longitudinal grooves 4 of triangular dovetail section and the member being connected by angle brackets 7 each having on each arm a part of triangular dovetail section which can slide in the grooves 3, 4 and be secured in the desired position by screws 13 which engage the bottom of the grooves and force serrated portions 9 on the brackets against the faces of flanges 6 either side of slots 3
Patent GB-763732-A (GB)
Title: Improvements in and relating to electric carrier telegraph systems
Inventor: TERLECKI RENAT
IPC: H04L27/12
Filed: 1953-09-11
Abstract: 763,732. Frequency shift radio signalling; multiplex radio signalling. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Sept. 7, 1954 [Sept. 11, 1953], No. 25225/53. Drawings to Specification. Class 40(5) In the frequency shift carrier telegraph system of Specification 665,654 the different pairs of carrier frequencies transmitted to indicate marks and spaces, each pair having a different frequency difference, are derived from a common high frequency crystal controlled oscillator and by heating the latter with relatively lower frequency oscillators in mixers, one corresponding to each lower frequency oscillator. All but one of the lower frequency oscillators may then be frequency shifted by D.C. signal-operated telegraph relays, one to each channel acting on variable reactance valves shunting the oscillators. All the oscillators may be enclosed in a common temperature controlled oven. The frequency shift may be less than 60 c.p.s., enabling a reduction in bandwidth per channel.
Patent GB-905068-A (GB)
Title: Manufacture of longitudinally finned tubes or rods
Inventor: GUEST JOSEPH CLIFFORD
IPC: B21C37/20
Filed: 1960-07-20
Abstract: 905,068. Making rods or tubes; extruding; drawing; working at specified temperatures. T.I. (GROUP SERVICES) Ltd. May 8, 1961 [July 20, 1960], No. 25245/60. Classes 83 (2) and 83 (4). A longitudinally-finned rod or tube, e.g. of beryllium, stainless steel or zirconium alloy, is made by enclosing a longitudinally-finned billet in an envelope having complementary internal fins, extruding or drawing the enclosed billet and removing the envelope. A beryllium tube is made by forming a hollowing billet, forming fins by machining, forging or pressing in a mould, enclosing the billet in a mild steel envelope, extruding using a core or mandrel at 600-1100‹ C. or drawing at 300-600‹ C., and removing the envelope by pickling in nitric acid. A stainless steel billet is extruded at 1250‹ C. In this case to prevent carbon migration a coating of lime is interposed between the billet and the envelope or the surface of the envelope is oxidized by heating to 600 ‹ C. in air. The envelope may be removed mechanically.
Patent GB-615087-A (GB)
Title: A new or improved seal for the waste outlets of sinks, lavatory basins, baths and the like
IPC: B01D21/24
Filed: 1946-08-24
Abstract: 615,087. Sanitary traps. KINSEY, A., and KINSEY, R. S. Aug. 24, 1946, No. 25339. [Class 33] A seal for the waste outlets of sinks, lavatory basins, baths and the like comprises a loose assembly of three components, viz. a dished and apertured cover disc 10, which overlies and overlaps the flange 11b of a tubular inner member 11 and the flange 12a of an outer cup section 12. The cup 12 has holes 12b up to which liquid remains in the cup, the level of the liquid being above the lower end of the member 11, the liquid thus serving as a seal. The flanges support the assembly, around the waste hole or on a flange within the outlet passage.
Patent GB-895753-A (GB)
Title: Improvements relating to pattern wheels in or for circular knitting machines
Inventor: SCHMIDT RICHARD
IPC: D04B15/78
Filed: 1959-07-23
Abstract: 895,753. Knitting-machines. MORAT G.m.b.H., FRANZ. July 23, 1959, No. 25352/59. Class 74 (2). Radially-slidable bits which activate the needles, and which are situated between pattern wheel teeth 4 engaging the needle butts, are moved to operative position by a cam 9, movable by electromagnetic means between operative and inoperative positions, and are shifted to inoperative position by a second cam 26 disposed ahead of the cam 9 in the direction of rotation of the wheel. The cam 9 is borne on a cover-plate 8 and is rockable in one direction on the other about a pivot 12, according as to whether an end 9b of the cam rides on a tooth of a ratchet-wheel 13 or lies in an inter-tooth space. The ratchet-wheel is racked round by a pawl 14 on a lever 16 rockable about a stud 17 and bearing a pin 21 engaging a slot 22a in a second lever 22 rocked about a stud 23 by an electromagnet 18, against the action of a spring 19. Alternatively, the cam 9 may be rocked directly by two electromagnets acting on opposite sides of one of its arms, or by one electromagnet and an opposing spring ; and devices may be provided which arrest the cam 9 in position for the period of no change.
Patent GB-770107-A (GB)
Title: Improvements in glass-to-metal seals
Inventor: HALL HARVEY SYDNEY
IPC: C03C3/091
Filed: 1954-09-01
Abstract: 770,107. Glass. CATHODEON, Ltd. Aug. 31, 1955 [Sept. 1, 1954], No. 25392/54. Class A glass that can be sealed directly to mild steel or other ferrous material of similar expansion coefficient comprises (percentages) SiO, 58.4; Al 2 O 3  2.5; Na 2 O 15.3; CaO 2.4; B 2 O 3  8.2. The balance contains fluorides and may also contain traces of Pb, As or Sb and, in order to give colour. up to approximately 8 per cent Fe, Co or Mn.
Patent GB-1170016-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor components
IPC: B28D5/00
Filed: 1968-05-28
Abstract: 1,170,016. Subdividing semi-conductor wafers. SIEMENS A.G. 28 May, 1968 [29 May, 1967], No. 25405/68. Heading H1K. Grooves 6 are scribed in the opposite face of a semi-conductor wafer 1 to that which has undergone processing during the formation of a plurality of components, so that when the wafer is subdivided into its individual components by breaking along the grooves 6 the electrical properties of the components are not adversely affected. As shown an n-type Si wafer 1 is provided with a p-type epitexial layer 2 across one entire face, and grooves 6 are scribed in the opposite face using a diamond tip while the wafer is held by suction on a glass or metal frit plate 4. The wafer is broken into its component parts by rolling a steel roller over the layer 2 while the scribed surface rests on a hard rubber support. The layer 2 is covered with a thin woven fabric of resin fibre during rolling. Such a process provides large-area diodes, and transistors may be similarly manufactured. Ge or compound semi-conductors may be processed similarly.
Patent GB-233978-A (GB)
Title: Improvements in or relating to resilient wheels
IPC: B60B9/04
Filed: 1924-10-25
Abstract: 233,978. Luca, F. de. Oct. 25, 1924. Spring wheels comprise oval laminated steel spring-rings 3 which are in lateral contact and fit recesses in a star-shaped hub 4, the wider outer parts of the rings fitting in an endless sinuous band 2 carried on the felloe 1. Cover-discs 10, 11, 13 are secured at the sides of the wheel, bolts 8, which pass through the disc 13, lying in slots 9 in the discs 10 to act as stops for preventing excessive movement. Bolts 7, which hold the disec 10, engage with, and secure, the rings 3 at the hub.
Patent GB-465559-A (GB)
Title: Improvements in or relating to fans and more particularly fans of the centrifugal vane control type
IPC: F04D29/46
Filed: 1936-09-18
Abstract: 465,559. Centrifugal fans. STURTEVANT CO., B. F. Sept. 18, 1936, No. 25463. Convention date, Sept. 18, 1935. [Class 110 (i)] A centrifugal fan has a converging inlet 8 carrying pivot rods 16 which support a hub 12 around the shaft 10, the hub having a rotary member 30 with longitudinal grooves engaged by pins 36 on arms 24 carried by the pivoted vanes 20 which are thus simultaneously adjusted. Each pivot rod is bolted to the inlet 8 and screwed into a conical part of the hub 12 which has a cylindrical part carrying the member 30. The member is adjusted manually or automatically by a rod 42 and crank 44. Specification 358,154 is referred to.
Patent GB-1198426-A (GB)
Title: Production of Caprolactam
Inventor: CAPP CLIFFORD WILLIAM
IPC: C07D201/02
Filed: 1967-06-02
Abstract: 1,198,426. Caprolactam. BP CHEMICALS (U.K.) Ltd. 15 May, 1968 [2 June, 1967], No. 25686/67. Heading C2C. Caprolactam is produced by reacting 1,<SP>1</SP>-1 peroxydicyclohexylamine with an alkali metal alkoxide in solution in a reaction medium which is a mixture of methanol and dimethyl sulphoxide. Cyclohexanone is produced as a byproduct. A mixture of alkali metal hydroxide and alkanol may be used instead of an alkali metal alkoxide. Cyclohexanone is a by-product.