baber/WOPTO huggingface dataset:
Patent GB-720776-A (GB)
Title: Improvements relating to magnetic focusing devices for electron beams
IPC: H01J29/68
Filed: 1953-03-03
Abstract: 720,776. Electron beam apparatus. GENERAL ELECTRIC CO. March 3, 1953 [March 4, 1952], No. 5911/53. Class 39 (1) A focussing magnet assembly for a cathode-ray tube comprises a hollow cylinder 13 of magnetic material provided at its ends with radially extending annular pole pieces 14, 15, and a permanent magnet or plurality of permanent magnets 17, 18 extending between the pole pieces. The cylinder 13 is secured within the end of the cylindrical second anode 11 of the electron gun structure. The anode cylinder is of non-magnetic material. Iron washers 20, 21 provide extensions of the pole pieces outside the anode cylinder 11. Three magnets, equally spaced circumferentially, only two of which 17, 18 are shown, are retained in position by washers 24, 25 provided with suitable openings for receiving the ends of the magnets. The wall 16a of the cylinder 13 is graduated in thickness to establish a desired distribution of magnetomotive force along the magnet structure; the thickness of the wall is graduated by provided annular recesses 26 of varying depths. By making the depths of these recesses longer than their widths, the focussing field is shielded effectively from the fields of the magnets. The structure is designed to be free from spherical abberration or to introduce a desired spherical abberation compensating for spherical abberration introduced by the electron gun. The strength of the magnetic lens may be adjusted by means of an axially movable shunt outside the envelope of the tube. In a modification, Fig. 4 (not shown), the pole pieces 14, 15 and the washers 20, 21 seat together, the structure being supported on top of the anode cylinder 11. Non-magnetic washers are interposed between the pole pieces and the washers to ensure an even distribution of the magnetic flux across the interfaces. The washers have shaped flanges for retaining magnets. In another modification, Fig. 7 (not shown), the focussing field is shielded from the fields of the magnets by annular soft iron members provided inside and outside the anode cylinder 11. The inner wall of cylinder 13 is graduated in thickness, but not provided with recesses. In another arrangement, Fig. 6, the focussing assembly comprises an annular stack including soft iron pole pieces 44, 45 separated by a plurality of washers 46 of non-magnetic material with interposed washers 47 of high permeability iron, and by an annular magnet 48. The whole assembly is clamped together by an eyelet 49. The washers are graduated in thickness towards the centre of the assembly.
Patent GB-1002415-A (GB)
Title: Improvements in or relating to adhesive-coated sound damping materials
Inventor: FLATAU ARNOLD STANLEY
IPC: C09D109/04
Filed: 1962-02-15
Abstract: A sound damping material for application to a metal sheet comprises a sheet or pad of a sound damping composition which is capable of being fused to the metal by heating which is coated on the side which is to contact the metal with a thin layer of a nitrile rubber latex the monomer composition of which by weight is 30-70 parts butadiene, 15-40 parts acrylonitrile, 0-30 parts styrene and 0-7 parts of unsaturated carboxylic acid or acids. The sound damping composition comprises bitumen and/or a resinous p  sound damping material e.g. a resin derived from coumarone, indene, coumarone-indene, styrene-indene or cyclopentadiene or homologues of these compounds and may contain a filler, e.g. clay, mica, whiting, slate powder, sand, barytes, talc, asbestos, ground granite, carbon black, silica, wood flour or cork and a plasticizer or softener.  Specifications 983,646, 986,632 and 1,002,414 are referred to.
Patent GB-575723-A (GB)
Title: A new or improved flying boat base
IPC: B64F1/22
Filed: 1944-03-31
Abstract: 575,723. Flying-boat bases. SAUNDERS-ROE, Ltd., and GOUGE, A. March 31, 1944, No. 6051. [Class 4] A flying-boat base comprises a dock on the shore of an alighting stretch of water, a breakwater located offshore from the dock, a cable or the like extending between the breakwater and dock, the cable having stops at intervals to co-operate with a hook or like pick-up device at the bow of the flying-boat, and a winch or the equivalent for drawing in the cable to tow the engaged flying-boat into dock In the embodiment illustrated, the dock 10 is provided with three bays 11, a cable 15 with spaced stops 22 extending from each bay to the breakwater 14. 'Each cable is endless, the upper run passing through a duct 18 to a winch 19 on the dock. The bays 11 are shallow, with deeper central troughs 13 for the flying-boat hulls, and similar troughs may:be,provided for-wing-tip floats. A cable 23 may be paid out from a mobile winding engine 24 on the breakwater, and secured to the tail of the machine, to enable the latter to be towed nose first, or in the event of particularly adverse wind conditions, tail 'first. Travelling gangways 28 can be run out from the dock-side for the embarking and disembarking of passengers. The central bay is shown arranged as a service bay, a ramp 30 being provided at the end of the trough 13, down which a lifting cradle can be run beneath the hull. Parts 32 of the quay can be slid forwardly .into the bay to permit access to the machine.
Patent GB-525638-A (GB)
Title: Improvements in sound and heat insulating compositions
IPC: C08L97/02
Filed: 1939-02-24
Abstract: 525,638. Sound and heat insulating compositions. BRITTON, J. G. Feb. 24, 1939, No. 6157. [Class 70] A sound or heat insulating composition is prepared by mixing with water a comminuted woody or fibrous cellulosic material such as powdered cork, or bagasse, an adhesive material such as glue or wheat or rye-flour, and an oxide and salt of the saine metal which will unite to form a rigid binder such as magnesium oxide and chloride or zinc compounds, beating or whipping the mixture to cause inclusion of air and either allowing the mixture to set in moulds, or applying it to a surface.
Patent GB-943143-A (GB)
Title: Titanium-containing non-ferrous metal alloys
IPC: C22C32/00
Filed: 1961-02-20
Abstract: An alloy consisting of more than 50% Zn (by weight) and the balance Ti also contains 1-67 atomic per cent H and/or N and/or O based on the quantity of Ti, the H, N or O being combined with Ti and/or dissolved in solid solution.  Up to one half of the Ti may be replaced by Zr and/or Hf and the alloy may also contain 0.1-10% (by weight) Cu, up to one half of which may be replaced by Mn. Al in a proportion of 0.1-less than 50% (by weight) may also be present. The Zn used may be spelter containing up to 1.5% Pb.  The alloy may be cold worked at 20-100  DEG C. and annealed at 100-350  DEG C. H and/or N may be introduced into the molten alloy or prealloy by treatment of the melt with hydrogen and/or ammonia.
Patent GB-582981-A (GB)
Title: Machine for glueing laths together
IPC: B27G11/00
Filed: 1943-04-20
Abstract: 582,981. Glueing laths together; composite blocks. SUEFFERT, W. FISCHER-. April 20, 1943, No. 6332. [Classes 145 (i) and 145 (ii)] In a machine for glucing together laths to form boards, e.g. the inner layers of plywood, the laths 21 are fed along a supporting surface formed by bars 2, by conveyor bands 4 and are then moved past an edge glueing device on to a second table 62 in a different plane from that of the bars 2 and on which the laths are glued together. The laths are conveyed one at a time from the bars 2 by a lifting, bar 61 raised and lowered by linkage 64, 65 and a cam 68 on a shaft 8 and the edge of the lath wipes past a glueing roller 75 contacting a supply roller 74 in a trough 73. The lath is pushed trom the bar 61 on to the table 62 by a beam 86, formed by horizontal and vertical ibs, and reciprocated by cam and lever mechanism from the shaft 8, the bar 61 having slots for the passage of the vertical ribs of the beam. While in contact with the beam the lath is forced endwise against a stop by a cam-operated hammer to press together the parts of a lath which may consist of short lengths end to end. The beam 86 pushes the laths beneath spring pressed bars 114, which press the laths against the table 62 and the contact between successive laths causes them to become glued together as they move over the table. A counting device is provided which moves the glueing roller 75 to one side after a predetermined number of laths have been glued together so that the next lath is not glued and composite boards of predetermined width are thus produced. During their passage across the bars 2, they engage at one side with an adjustable stop and at the other side are trimmed to a uniform length by a circular saw 20.
Patent GB-566039-A (GB)
Title: Improvements in or relating to windows
IPC: E06B7/22
Filed: 1943-04-21
Abstract: 566,039. Windows. PERFECTA MOTOR EQUIPMENTS, Ltd., and BOSTOCK, C. W. April 21, 1943, No. 6441. Drawings to Specification. [Class 20 (iii)] The metal channels 15, 16 (Figs. 1 and 2 of Specification 566,038), in the side stiles of the frame in which the sashes of a double-sash window slide are formed with narrow longitudinal ribs and grooves g and a strip of close pile fabric k is secured to the outside of each of the side members h of the sashes. The fabric is woven with a cord in each longitudinal edge and is applied to a thin metal strip l of channel section, the free edges of the strip being rolled around the cords to form beads which are housed in grooves in the sashes. Similar fabric is positioned around upstanding ribs p, t on the top and bottom members of the upper sash and in a recess in the bottom member w of the lower sash. Specification 566,038 is referred to.
Patent GB-646634-A (GB)
Title: Improvements in or relating to gas turbines
IPC: F23R3/00
Filed: 1945-04-27
Abstract: 646,634. Gas turbine jet propulsion plant. LOCKHEED AIRCRAFT CORPORATION. April 27, 1945, No. 6630/46. Convention date, March 6, 1942. Divided out of 646,632. [Class 110(iii)] A jet propulsion gas turbine comprising a cylindrical housing 113, Fig. 1, a propulsion nozzle N connected to the exhaust of the turbine housing and a rotor 115 having a hollow tapered shell with its apex 135 facing in the direction of flow of gases to form an expanding passage between the rotor and housing has means to conduct fuel into the apex of the rotor shell and one or more orifices in the apex through which the fuel is discharged into the propelling gases. The fuel is supplied to the apex 135 through a passage 136, Fig. 3, formed in the rotor shaft 118. The passage 136 is supplied from a stationary pipe which projects into the passage through a gland. Air from the discharge of the compressor passes through a passage 144 formed between a truncated conical baffle 143 and the bearing supporting member 124 to the apex of the rotor. Part of this air flows back through a passage 146 to cool the roots of the rotor blades 125 and part flows through passages 142 to cavities 139 from which it is exhausted by nozzles 148 and passed into the turbine exhaust gas stream. The nozzles 148 are formed of drilled cap screws threaded on to nipples 150 welded to the rotor and are used to retain the cap member 135. Fuel jets 137 are formed in the cap 135. An annular aerofoil 160, Fig. 1, having a leading edge 162 of heat resistant material and a trailing edge 163 of carborundum or other refractory material is attached to the exhaust cone S diametrically opposite the fuel jets 137 so that the burning of the heavier particles of unvaporized fuel reaching the baffle is assisted by the catalytic properties of the carborundum member 163. The rotor .shell 115 is in the approximate shape of one half of a prolate spheroid. Specification 646,632 is referred to.
Patent GB-708817-A (GB)
Title: Improvements in or relating to the manufacture of non-metallic resin-bonded laminar articles
Inventor: WAREING ROBERT JOSEPH
IPC: B29C65/00
Filed: 1951-03-20
Abstract: 708,817. Securing transparent panels to aircraft structures. IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 19, 1952 [March 20, 1951], No. 6634/51. Class 4 [Also in Group V] A radar fairing or radome for aircraft has its joint with the fuselage sealed against pressure difference at high altitudes. The radome 1 is composed of woven glass cloth laminae 3 bonded together by thermosetting resin and it is joined to a metal ring 2 by screws 7, the joint being sealed by a rubber gasket 6. The ring 2 is secured to the aircraft structure by bolts 5. The laminae are secured to the metal ring at the same time as they are moulded into shape, the gasket of uncured natural or synthetic rubber being cured by the heat and pressure of the moulding process (see Group V). Specification 665,754, [Group V], is referred to.
Patent GB-471369-A (GB)
Title: Improvements in or relating to indicating devices for weighing apparatus
IPC: G01G23/18
Filed: 1936-03-05
Abstract: 471,369. Electric signalling systems. FITZPATRICK, H. J. (Maatschappij van Berkel's Patent N.V.) March 5, 1936, No. 6640. [Class 40 (i)] [Also in Group XIX] A lamp indicator 40 is controlled by switches 46 actuated by the keys of a recording machine which is set in accordance with the results of weighing operations electrically or, as described in Specification 465,971, [Group XXIX], pneumatically.
Patent GB-768476-A (GB)
Title: Resilient wheel assembly
IPC: B60B9/12
Filed: 1955-03-07
Abstract: 768,476. Spring wheels. APPEL, W. D. March 7, 1955 [March 22, 1954], No. 6671/55. Class 144 (1). In a spring wheel wherein the peripheral edge 19 of the wheel body or web 11 is received between a pair of radially inwardly directed, laterally spaced annular rim flanges 20, 20a and secured thereto by rubber or like blocks or rings 21, 21a bonded to adjacent surfaces of the edge 19 and the flanges, the flanges 20, 20a are respectively secured to the underside of relatively stepped portions of the rim 12. As shown, the flanges are riveted, after bonding to the rubber members 21, 21a, to the underside of the well base and a bead-seat flange respectively of the rim 12. Fig. 2 shows the connected portions of the web edge 19 and the flanges 20, 20a lying in radial planes parallel to the plane of rotation of the wheel, whereas in Fig. 4 the said connected portions are inclined to the radial. Fig. 5 shows an arrangement wherein the rubber blocks or rings are each laminated to include a metal insert 24, 24a, the inner peripheral edges of the laminated structures being stepped as shown. In each of the above constructions, the web 11 and the flanges 20, 20a may be segmental.
Patent GB-488307-A (GB)
Title: Improvements relating to cans
IPC: B65D51/18
Filed: 1937-03-06
Abstract: 488,307. Cans. GRANT, BOUTLE, & CO., Ltd., H., and BENNETT, H. G. March 6, 1937, No. 6725. [Class 66] A can is provided with a plug closure 6 frictionally engaging a substantially cylindrical neck part 3 disposed below an outwardly flared portion 4 formed with a beaded edge 5. The closure has in addition to the friction fit a seating on a bead or step which may be provided on the closure member itself, as shown at 8 in Fig. 1 and adapted to engage the flared portion, or may be disposed on the cylindrical neck, for instance as at 14 in Fig. 3. A covering capsule 10, adapted to be torn away, is provided. Specification 203,971, [Class 125 (iii)], is referred to.
Patent GB-854688-A (GB)
Title: Vertical boring mills and the like with power-operated clamps
Inventor: HAKE WALTER THOMAS
IPC: B23Q1/28
Filed: 1958-03-03
Abstract: 854,688. Machine-tool details. AMERICAN STEEL FOUNDRIES. March 3, 1958, No. 6737/58. Class 83 (3). In a vertical-boring mill &c., a clamp for locking the beam 2 to the vertical columns 4 comprises a pair of levers 12 pivoted on the beam, and a screw-threaded member 24 rotated by power means 60, and thus moved axially to rock the levers about their pivots 16 and clamp the beam. Two pairs of clamping levers 12, 14, may be provided, each lever having an arcuate bearing surface 90 to receive a clamping-shoe 94, which bears against a surface 8 on the column and is retained in the bearing by caps 98 on the lever. To assemble the beam on the columns, the pivots 16 are withdrawn, and the levers moved together to clear the inner edges of the columns. Pins 104, in bearing lugs 100 on the beam and projecting into slots 108 in the levers, prevent escape of the levers during this operation. At their inner ends, each pair of levers is engaged by a cap 20 supported on a thrust-bearing 40 and retained in position by a spring 34, which engages the head of a pin 28 connected to the cap. The bearing 40 is mounted on the member 24, which engages screw-threads in part of a housing 22 bolted to the beam. Gear-teeth on the member 24 are engaged by a rack 56 formed on the rod 58 of a piston 60 in a cylinder 62, which also contains the operating piston 64 for the second pair of clamping levers 14. Pressure-fluid admitted along line 80 to space 72 between the pistons moves them outwardly, thus rotating and moving axially the members 24, which rock the levers 12, 14 to clamp the beam.
Patent GB-958963-A (GB)
Title: Improvements in photographic reproduction processes and in photographic sensitive materials therefor
IPC: B41M5/48
Filed: 1960-06-01
Abstract: 958,963. Photothermographic materials. KODAK Ltd. June 1, 1960 [June 3, 1959], No. 6856/64. Divided out of 958,962. Heading G2C. A photothermographic material comprises a layer containing a silver halide emulsion and a heat-sensitive material which does not absorb infra-red radiation and undergoes a visible change or becomes capable of causing a visible change when heated to over 55‹C. The material is exposed to light, developed to give a silver image, and then exposed to infra-red radiation as described in Specification 866,777. The heat-sensitive material may be one of those disclosed in the above Specification or it may be a mixture of a p-quinone and a dihydroxybenzene as claimed in Specification 927,895. Alternatively, it may comprise a mixture of lead formate and mercuric oxalate, a mixture of thiourea and nickel acetate, or a mixture of mercurous chloride and urea. In Example 2, the support is first coated with an aqueous gelatine composition containing hydroquinone, metol, sodium sulphite, sodium carbonate and potassium bromide before being coated with the photothermographic layer, while in Example 4 the support is first coated with an aqueous gelatine solution containing inter alia 1-phenyl-3-pyrazolidone,ascorbic acid, sucrose and potassium metaborate. In either case, development is in moist air at 60‹C. before the infra-red exposure. The support may be coated on both sides with the photothermographic layer. The layer may be coated to give a silver coverage of 1 mole of silver per 140,000 or 2, 500 sq. feet.
Patent GB-609087-A (GB)
Title: Hydraulic steering gear for ships
IPC: B63H25/28
Filed: 1946-03-05
Abstract: 609,087. Hydraulic steering gear for ships. JENSEN, C. C. March 5, 1946, No. 6867. Convention date, May 26, 1942. [Class 114] [Also in Group XXVIII] A hydraulic steering gear for ships consists of a steering wheel pump 28, a power-driven pump 1 and a steering engine 37, 41. The pump 1 consists of a rotor 4, driven by an engine, in a cylindrical surface of which are two sets of radial cylinders 5, 7 and 6, 8 containing pistons 9, 11 and 10, 12 embraced by a radial bearing 13 displaceable at right angles to the rotor shaft by means of pistons 14, 15 in cylinders 17, 16 in communication with the pump 28. The pump 28 also communicates with the cylinders 6, 8 which circulate the controlling liquid. The cylinders 5, 7 communicate through passages 22, 23 with opposite ends of a cylinder 29, containing a piston 30 with rods 31, 32, and by means of spring-loaded valves 33, 34 and passages 35, 39 with the steering engine 37, 41. If the engine driving the rotor 4 fails, liquid may be pumped from the pump 28 through spring-loaded valves 18, 19 to and from the steering engine 37, 41.
Patent GB-946723-A (GB)
Title: Improvements in or relating to harrow or cultivator teeth
Inventor: ANDERSEN ANDERS
IPC: A01B35/24
Filed: 1962-02-22
Abstract: 946,723. Agricultural implements. A. ANDERSENS STAALVAREFABRIK A.S. Feb. 22, 1962, No. 6884/62. Heading A1B. A cultivator tooth 9 is fixed to a frame 1 by springs 3, 4 which allow the tooth to yield, the spring 3 being fixed to the tooth 9 and the spring 4 being freely slidable in guides 7.
Patent GB-789458-A (GB)
Title: Process for the production of polyacetals
IPC: C08G4/00
Filed: 1955-03-10
Abstract: Polyacetals having molecular weights of up to 10,000 are made by effecting a polyaddition reaction between a divinyl ether and a dihydroxy compound or a dimercaptan.  Reaction is effected in acid medium and at the end of the reaction the catalyst is neutralized. Specified dihydroxy compounds are ethylene glycol, diethylene glycol, triethylene glycol, propanediol, trimethylene glycol, butanediol, hexanediol, decanediol, resorcinol and diphenylolpropane.  Divinyl ethers specified are those of the above dihydroxy compound.  The specified dimercaptan is hexamethylene dimercaptan.  Cross-linked products may be produced by adding glycerine, pentaerythritol or sugar alcohols to the reaction mixture.  The polyectals are useful as greases, lubricants, textile assistants, adhesives or plasticizers. In examples polyacetals are made from (1)-(4), (6), (8) and (9) diethylene glycol divinyl ether and diethylene glycol, 1.4-butane diol, ethylene glycol or hexamethylene dimercaptan; (5) ethylene glycol divinyl ether and diethylene glycol; (7) trimethylene glycol divinyl ether and 1.4-butanediol; (10) ethylene glycol divinyl ether and 4.4-dihydroxydiphenyl dimethyl methane. Specification 369,297, [Group IV], is referred to.
Patent GB-593087-A (GB)
Title: A new or improved toasting device
IPC: A47J37/08
Filed: 1945-03-20
Abstract: 593,087. Reciprocating conveyers. DARLING, G. F. March 20, 1945, No. 7030. [Class 78(i)] [Also in Group VI] In a toaster (see Group VI) bread is placed on a retractable belt 3 attached to a spring-driven drum 1, the drum being wound up on withdrawing a movable frame 5 from the toaster chamber 7. On releasing the frame the drum revolves to wind in the belt and causes the bread to pass between heaters 8 in the chamber. According to the Provisional Specification, the drum and the belt may be replaced by an electric motor and a continuous conveyer.
Patent GB-1126027-A (GB)
Title: Fire extinguishers
Inventor: ADAMS HENRY HEWARD
IPC: A62C5/00
Filed: 1966-02-17
Abstract: 1,126,027. Fire extinguishers. PYRENE CO. Ltd. 10 April, 1967 [17 Feb., 1966], No. 7062/66. Heading A5A. A fire extinguisher of improved extinguishing capacity comprises a pressure vessel 1 charged with an aqueous solution of a perfluoro surface-active agent 16 under gas pressure, a foam improver contained in diptube 6, an outlet valve, and a gas tube 14 terminating in fitting 9 at the base of tube 6 so that when the outlet valve is opened the liquid and gas in the vessel pass out together through the foam improver and the outlet valve. The foam improver may consist of a packed mass of eyelets or hessing rings. In a modification the foam improver is outside the vessel and on the discharge side of the outlet valve. The gas is air or nitrogen under, for example, 200 p.s.i. pressure. The gas tube may contain a valve so that the extinguisher may eject liquid alone. Suitable perfluoro surface-active agents are [C 7  H 15  CONH(CH 2 ) 3  N<SP>+</SP>(CH 3 ) 3 ]I<SP>-</SP>, [C 8  F 17  SO 2 NH(CH 2 ) 3  N<SP>+</SP>(CH 3 ) 3 ]I<SP>-</SP>, [C 7 F 15 CONH (CH 2 ) 3  N<SP>+</SP>(CH 3 ) 2  CH 2 CH 2 OCOCH=CH 2 ]Cl<SP>-</SP>, C 7  F 15  CONH(CH 2 ) 3  N<SP>+</SP>(CH 3 ) 2  CH 2  CH 2  COO- and/or C 8  H 17  SO 2  N C 2  H 5  CH 2  COO<SP>-</SP>K<SP>+</SP>, in 0.1-10% by volume aqueous solution. To obtain a low freezing-point up to 25% volume/ volume ethylene glycol or up to 40% weight/ volume urea may be added to the solution.