baber/WOPTO huggingface dataset:
Patent GB-1040696-A (GB)
Title: An improved air flow controller or damper for air supply or exhausting systems
IPC: F24F13/10
Filed: 1961-11-17
Abstract: 1,040,696. Valves. W. H. BARKER and D. R. BARKER. Jan. 25, 1963 [Nov. 17, 1961], No. 41319/61. Heading F2V. [Also in Division F4] An air damper comprises parallel tubular louvres which are deformable to vary the spacing between adjacent louvres. As illustrated in Fig. 1 the louvres have rhomboidal cross-sections and are located with their axes equally spaced in notches 2 in a supporting member 3. One or more pressure applying members 4 for deforming the louvres engage the apices 1a of the latter and are supported on tubes 9 and 10 threaded on adjusting screws 6, springs 7 forcing the members 4 in the direction of opening of the gaps 5 between the louvres 1. The members 4 are freely pivoted on the tubes 9 and 10 and are formed at one end with a slot 11 to allow for pivotal adjustment of the members 4. One member 4 may be located at each end of the louvres and a third may act on the louvres midway of their lengths or the latter may be present as a single operating member. The louvres are formed of resilient material and may be seamless or may be formed of two strips of V cross-section hinged at their edges. Alternatively the louvres may be formed of four flat strips hinged to give a rhomboidal cross-section, spring means being provided to act against the operating means. In a modification, Fig. 2 (not shown), the louvres are formed of plastics material and are of oval cross-section. Rods 12 pass through thickened portions of the louvres and engage apertures 13 in the operating members 4 and supporting members 3 at the end of the louvres. Alternatively a single operating member may engage the louvres midway of their lengths, Fig. 3 (not shown). In a further modification, Fig. 8 (not shown), individual operating means are provided for each louvre comprising a screw or screws threaded through a damper frame member and bearing on the edges of the louvres.
Patent GB-1347613-A (GB)
Title: 2-aminoquinoxalines
IPC: A01N43/60
Filed: 1972-09-08
Abstract: 1347613 2-Aminoquinoxaline derivatives BAYER AG 8 Sept 1972 [8 Sept 1971] 41812/72 Heading C2C Novel 2-aminoquinoxaline derivatives having the general formula wherein R is hydrogen or a (C 1 -C 5 ) alkyl or alkenyl group, R<SP>1</SP> is a (C 2 -C 5 ) alkyl or alkenyl group, X is halogen, methyl or trifluoromethyl radical and n is 0, 1, 2 or 3, or a salt thereof, are prepared by reacting a 2-haloquinoxaline of the formula wherein Hal is chlorine or bromine, with an amine of the formula The reaction is preferably carried out at a temperature of from 20 to 150 C. in the presence of a solvent or diluent. The novel compounds possess pesticidal activity.
Patent GB-1439062-A (GB)
Title: Process for preparing alkyl transchrysanthemates and the corres ponding acids
IPC: C07C61/04
Filed: 1973-09-06
Abstract: 1439062 Alkyl chrysanthemates SUMITOMO CHEMICAL CO Ltd 6 Sept 1973 [7 Sept 1972] 41984/73 Heading C2C An alkyl trans-chrysanthemate is prepared by treating the corresponding cis-isomer with an alkali metal alkoxide in an amount of from 1 to 20 moles per 100 moles of the starting cisisomer at 50 to 200 C. in an aprotic solvent or in the absence of a solvent. The product may be hydrolysed to give trans-chrysanthemic acid.
Patent GB-953198-A (GB)
Title: A tunnel diode and a process for its production
IPC: H01L29/88
Filed: 1960-12-07
Abstract: An alloy used in making semi-conductor devices (see Division H1) consists of tin containing 0.1-2% by weight zinc.  Other alloys suggested are alloys of tin with up to 10% by weight cadmium, of indium with a total of up to 10% by weight of zinc and/or cadmium, and of tin with up to 10% by weight of germanium, silicon, sulphur, selenium, or tellurium. Specification 757,672 is referred to.
Patent GB-1444172-A (GB)
Title: Revement mats
IPC: B28B11/00
Filed: 1973-09-07
Abstract: 1444172 Revetments AANNEMERS COMBINATIE ZINKWERKEN BV 7 Sept 1973 [6 Oct 1972] 42205/73 Heading E1H A revetment mat comprises a sheet of permeable fabric I and a plurality of spaced concrete blocks 2 secured to the sheet by bars woven into the sheet. The bars are preferably of iron or synthetic resin and have projections over which the cement blocks may be cast. Alternatively the projections may receive bolts which pass through passages formed in pre-cast blocks. The ends of the mat are provided with anchors 12 and one or more tubes 11 which are filled with water to secure the mat in position on the sea-bed. A rush-mat may be placed between the sheet 1 and the blocks 2. The mat may be laid using a vessel 11A, the mat being stored thereon in concertina fashion, a pair of reciprocable dogs 21, 22 being used to regulate the paying out of the mat. The mat may also be stored on a reel mounted on the fore or aft end of the vessel Figs. 14-17 (not shown).
Patent GB-932573-A (GB)
Title: Fluid-pressure systems for starting engines
Inventor: CAMERON-JOHNSON ALAN
IPC: F03C1/40
Filed: 1960-12-08
Abstract: 932,573. Engine turning gear. DOWTY ROTOL Ltd. March 5, 1962 [Dec. 8, 1960], No. 42331/60. Class 7(5). [Also in Group XXIX] A rotary, fluid-pressure motor, such as a hydraulic swashplate motor 11 used for starting a gas turbine engine through a one way clutch 27, is disconnected from the pressure supply on the attainment of a predetermined flow of the fluid through a restriction 113 in the outlet conduit 112 from the motor. The motor is energized by depression of a manual switch 123 which causes energization of a solenoid 68 and thereby opening of a supply valve 67 and closing of an exhaust valve 66 so that pressure fluid is delivered to a port 73 of a valve 74 and, by way of ports 56, 50, 55 of a valve 46, to a port 84 of the valve 74, the pressure in the port 84 depressing a piston 78 against a loading spring 80 so that the port 73 is connected with a port 83 to allow fluid to flow through a conduit 95 to the inlet 21 of the motor. The fluid pressure in the conduit 95 also closes a switch 100 to energize a holding coil 126 for the switch 123 and passes through a conduit 93 containing a restriction 94 to a holding piston. 81 for the valve 74. When the motor 11 reaches the speed corresponding to the predetermined flow, which speed corresponds to or is in excess of the self-sustaining speed of the engine, the pressure difference across the restriction 113 causes upward movement of a piston 106 to cause valve lands 102, 103 to vent conduits 87, 91 downstream of restrictions 86, 94 so that the piston 78 is allowed to return to interrupt the pressure supply to the conduit 95 and cut off the supply to the motor. In the meantime, a governor 40 driven by the engine through gearing 30, 35 will have moved a valve 46 to a position in which the ports 55, 56 are interconnected by a space 51 between lands 48, 49. Whilst the valve 46 is in this position the motor 11 can be restarted if, e.g., the engine has failed to start properly, but restarting is prevented if the engine speed has fallen to such a degree that the land 48 is opposite the port 55 as the latter will then be exhausted through a passage 53. Restarting is again possible when the engine speed has fallen sufficiently to reposition the valve 46 as shown. During acceleration no interruption in the fluid supply to the motor takes place as the valve 46 passes through the position in which it vents the port 55 to the passage 53 owing to the action of the holding piston 81.
Patent GB-1008977-A (GB)
Title: Improvements in means for transporting and erecting concrete preparation apparatus
IPC: B28C9/04
Filed: 1963-10-29
Abstract: 1,008,977. Erecting towers. EMIL HUGGLER A.G. Oct. 29, 1963 [Nov. 16, 1962], No. 42526/63. Heading B8B. A tower 1, Fig. 3, for the cement silo of a concrete mixer is erected, while fully assembled, by the thrust of a traction vehicle 4 acting through an articulated bar 7 connected between the vehicle and the top of the tower. A tip-up vehicle may be used to increase the effective length of the bar 7. The tower 1 may be lowered on to a trailer (not shown) by the same method for transport between sites. Two feet 6 of the tower are articulated and firmly attached to the ground during the raising or lowering operations.
Patent GB-1018814-A (GB)
Title: Method and apparatus for controlling combustion
IPC: F22B35/00
Filed: 1962-11-12
Abstract: 1,018,814. Automatic control of combustion. COMBUSTION ENGINEERING Inc. Nov. 12, 1962 [Dec. 20, 1961], No. 42608/62. Heading F4B. [Also in Division G3] A method of controlling the efficiency of combustion in the combustion chamber of a furnace subject to varying heat demand, comprises the steps of sensing changes in the heat demanded from the combustion chamber, controlling the amount of one of said combustion elements in response to said heat demand, sensing changes in the efficiency of combustion, and regulating the amount of the second of said elements in response to said changes in combustion efficiency to obtain optimum combustion efficiency with varying heat demand. As shown, a heat demand sensing device 60 sensing, for instance, variations in steam pressure, steam temperature, steam flow or electric power output, governs an air flow controlling device 62 which actuates an air damper 50. If the demand is for more heat, damper 50 will be opened and air flow will increase. The air increase will either raise or lower the combustion efficiency in chamber 12 and this raising or lowering of efficiency will be recorded by device 65 which, as shown, measures and compares the static pressures at two points 66, 68 in the chamber 12. The difference in efficiency recorded by device 65 is fed to a latchin relay 74 which controls fuel valve activator 64 causing the fuel valve 54 to admit more or less fuel to the furnace until optimum combustion efficiency is obtained.
Patent GB-1435358-A (GB)
Title: Method and a press for the production of ceramic tiles
IPC: B28B13/04
Filed: 1973-09-11
Abstract: 1435358 Pressing ceramic materials DORSTKERAMIKMASHINEN-BAU OTTO DORST UND DIPL ING WALTER SCHLEGEL 11 Sept 1973 [12 Sept 1972 24 Jan 1973] 42662/73 Heading B5A Ceramic tiles are pressed from granular material under vacuum in a press comprising an upper punch 37 mounted on a tup 32 which is raised and allowed to fall freely by a cam 35, a lower punch 38 which may act as an ejector by operation of cam 41a to raise ejector lever 41, a pressing table 39 on which is mounted a falling slide 42 fed from a silo 44, and a vacuum chamber 49 surrounding the die and also the silo 44 or only the lower part of the silo 13 (Fig. 1, not shown). The silo 44 is connected to the vacuum chamber surrounding the tup 32 by a passage 51 and is filled through a valve 45 from a container 47. The pressed tiles are removed through a rotary air lock 50, or along a roller or belt conveyer 17 (Fig. 1, not shown) passing through an air lock (21) closed at each end by flaps (20, 22).
Patent GB-1394359-A (GB)
Title: Machine for severing continuous webs of material
IPC: B26D5/22
Filed: 1973-09-11
Abstract: 1394359 Cutting apparatus CHAMBON Ltd 11 Sept 1973 [13 Sept 1972] 42689/73 Heading B4B A machine for severing portions a, particularly labels, from a continuously moving web 3 comprises a rotary cutting cylinder 11 having blades 12 for co-operation with a counter-blade 14, a pair of feed rollers 1, 2 and a connection device, e.g. a gear transmission between the cutting cylinder and the feed rollers which are thereby driven from the rotary cutting cylinder. The feed rollers and cutting cylinder are rotated by a main drive shaft 4 via gear-boxes 5 and 15 respectively. The cut labels are conveyed by a belt 13 and suction drum 17 to a table 18. To ensure the accuracy of the cuts a further pair of feed rollers 7, 8 are provided these rollers being connected by a speed control device 21 with the cutting cylinder 17.
Patent GB-1308118-A (GB)
Title: Colour display cathode-ray tube
IPC: H01J29/70
Filed: 1971-09-14
Abstract: 1308118 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Sept 1971 [17 Sept 1970] 42722/71 Heading H1D In a colour television tube provided with pairs of internal polepieces, such as 11 and 12 in Fig. 2, which extend through slots 17 and 18 in cylindrical member 16 and which are energized by an external convergence device to provide dynamic convergence of the beams, gaps are provided in the cylindrical member so that no closed electric path exists round a single slot. In Fig. 2 a slot 19 is provided to interrupt the electric path round a slot, and this reduces the time lag between the magnetic field at the beam and the field at the external convergence device from 4 to 1.5 microseconds, thereby simplifying the convergence circuits. In another arrangement, Fig. 3 (not shown), the slots 17 and 18 extend to one edge of the cylindrical member. The arrangement shown is for a three-beam shadow mask tube, and radial partitions 20-22 screen the three pairs of polepieces from each other.
Patent GB-904023-A (GB)
Title: Improvements in or relating to articulated tractors
IPC: B62D53/02
Filed: 1960-12-13
Abstract: 904,023. Sprag brakes. GARRETT, D. A. Dec. 13, 1960 [March 8, 1960], No. 42795/60. Class 103 (1). [Also in Groups XXX and XXXI] A tractor comprises front and rear sections articulated together about a vertical axis, an internal combustion engine and associated transmission being carried by the front section which is supported for pivotal movement about a longitudinal axis upon a cradle carried by a pair of driven wheels, means being provided for pivoting one section relatively to the other for steering purposes. The tractor comprises twowheeled front and rear sections 20 and 21, vertically articulated together by the interengaging frame members 23 and 24 and king pins 22. The rear section is mounted upon a driven axle 30 and the front section is supported by a pivotal connection between lugs 37 and 38 and upstanding members 39 of a sub-frame 34 which is carried by a driven axle 33. The tractor prime mover 56 is connected by a telescopic shaft 59, 60 to a transfer gearbox 50 from which a rearwardly-projecting shaft drives the differential gear 27 of the rear axle and a forwardly-projecting telescopic shaft 43, 44 drives the differential 31 of the front axle. An auxiliary drive shaft 65 from the prime mover drives a winch 62 through a chain-and-sprocket drive 66 and a reduction worm-and-wheel gear-box 67, providing a lifting device in connection with a rope 63 and jib 61 attached to the rear part of the tractor. At the fore part of the tractor a dozer blade 68 is secured to legs 70 pivoted at each side of the tractor frame at one of two positions 71 and 73, the arms being raised and lowered by rams 74. Claws 77 are connected to arms 80 pivoted at 76 to slot member 81 attached to the dozer blade. The claws may be held raised by inserting a pin 69 (Fig. 1), through registering holes 78, 79, or may be lowered to provide ground-engaging means when the winch is hauling a load, e.g. hauling logs. Hydraulic brakes are provided for all four wheels of the vehicle, the leads lying along the axles and being protected by guard members 91, Fig. 7. The fore section frame members may be recessed as at 93 to avoid obstructing rocking motion of the fore part about its longitudinal (centre line) pivotal axis provided by the pivots 41, 42. The tractor steering means comprises a member 83 attached to the rear port 21 and set from the pivotal axis of the two sections connected by a pivot 82 to a piston-rod 85 of an hydraulic ram 86 pivotally mounted upon the fore part of the tractor and provided with conventional fluid supply and control means.
Patent GB-875146-A (GB)
Title: Improvements in or relating to differential fluid pressure gauges
IPC: G01L13/02
Filed: 1957-07-04
Abstract: 875,146. Pressure gauges. K.D.G. INSTRUMENTS Ltd., STOW, E. W. T., HEYDEN, H. G. A., and JENKIN, L. J. Oct. 6, 1958 [July 4, 1957], No. 42903/60. Divided out of 875,145. Class 106 (2). A differential pressure gauge comprises a closed casing 10 within which are arranged two separate compartments 21, 22 communicating with the sources of pressure the difference of which is being gauged, a flexible pressure responsive device 27, 37 in each compartment, these devices being movable relatively to one another, and a space 3 between them filled with a fluid having access to both devices 27, 37 at all times, and means, disposed externally of the space for transmitting the deflection of one of the devices to an indicator 75. A bimetallic strip 74 is inserted in the transmission means to give temperature compensation. Specification 770,115 is referred to.
Patent GB-1491296-A (GB)
Title: Steroidal precursors of 1alpha-hydroxy-vitamin d3
IPC: C07J9/00
Filed: 1975-10-20
Abstract: 1491296 Precursors of 1α-hydroxy-vitamin D 3  YEDA RESEARCH & DEVELOPMENT CO Ltd 20 Oct 1975 [22 Oct 1974] 42948/75 Heading C2U The invention comprises compounds II and III infra (R=C 1-5  alkanoyl), and the preparation of 1α-hydroxy-7-dehydrocholesterol by converting I to VI by the routes shown and hydrolysing the latter. Reagents. I#II: NH 3 (l) then NH 4 Cl then Li, at -30 C. or below in a solvent; II#III, e.g. Ac 2 O/py; III#IV: Br 2 ; IV#VI anhydrous base, preferably hexamethylphosphoramide in the presence of trimethylammonium dimethyl phosphate; III#VII: HgBr 2 /NaOAc with irradiation at 254 nm; VII#VIII: p-toluenesulphonylhydrazide; VIII#VI LiH.
Patent GB-1003920-A (GB)
Title: Improvements in the mounting of reels on winding machines
IPC: B65H49/26
Filed: 1962-11-15
Abstract: 1,003,920. Reel-mounting device. E. MORRIS, [trading as WALMORE ENGINEERING CO.]. Oct. 29,1963 [Nov. 15, 1962], No. 43169/62. Heading D1J. A rotatable device for supporting reels of varying diameters and lengths comprises a conical body having longitudinal ribs A forming effectively a cylindrical hub and provided at one end with a truncated conical portion a which is adapted to contact one peripheral edge of the bore of a reel 1, and at the other end with spring-loaded toggle levers BB<SP>1</SP> which are adapted to contact the other peripheral edge of the bore of the reel. The reel support is mounted for rotation with the reel during winding or unwinding by means of bearings a<SP>2</SP>,a<SP>3</SP> on a spindle a<SP>1</SP>. Wire being unwound from the reel 1 passes over a pulley c<SP>3</SP> which is pivotally mounted in such a way that the action of a brake a<SP>8</SP> acting upon a flange a<SP>7</SP> of the device is controlled in dependence upon the tension in the wire. A further brake c<SP>6</SP> may be employed to apply a constant predetermined braking action to the flange a<SP>7</SP> to tension the wire being unwound from the reel 1. In a modification (Fig. 4 not shown) the toggle levers may be hydraulically loaded.
Patent GB-1162666-A (GB)
Title: Method of Producing Commutators of Dynamo-Electric Machines
IPC: H01R43/08
Filed: 1966-09-28
Abstract: 1,162,666. Making commutators; punches; deforming rings. NIPPON DENSO K.K. 28 Sept., 1966 [30 March, 1966], No. 43294/66. Headings B3A, B3E and B3W. A method of making a commutator for a dynamo-electric machine includes the steps of forming a flange 2 on a tubular blank, impact extruding the blank to form inter-connected commutator segments 3, punching holes 7 in the flange, finish forming the holes, casting insulating material 12 around the inner portions of the segments and finally separating the segments. The finished holes 7<SP>1</SP> are formed in two stages, firstly by a punch (4), Fig. 6 (not shown), in a first punching device and are brought to the required shape by a punch 8, the lower end 16 of which is of the same profile as the punch (4). Lugs 11 are formed in any suitable way on the inner surface of each segment. The outer periphery of the segments are machined to remove the bridge-pieces therebetween and grooves are made between the holes 7<SP>1</SP> so that the flange 2 is separated with each segment 3 having a connecting hole 7<SP>1</SP>.
Patent GB-1408203-A (GB)
Title: Printed circuit cards
IPC: H05K1/00
Filed: 1972-09-19
Abstract: 1408203 Circuit assemblies BRITISHAMERICAN TOBACCO CO Ltd 4 Sept 1973 [19 Sept 1972] 43412/72 Heading H1R A printed circuit card 50 comprises groups of bus-bars 57, 58 running substantially the length of the card and disposed between the groups connector pads 60, 61, 62 and 63 which in pairs provide contacts for dual-in-line packages such as 69, 71, 72 mounted on the opposite side of the board, their terminals being lead through holes in the board and soldered to the pads, and end connectors 52 with contact surfaces 53. In each group bus-bars 57 are for power supply and busbars 58 for interconnection. The card may also have connector pads 64 for resistors, e.g. 70, and capacitors and a pad 65 for potentiometer 66 adjusted by screw 67. Transistor 68 is connected to connection points 59 on three bus-bars 58. For completing interconnection between circuit components or to the end connectors, only short lengths of wire shown in broken lines are required. Handle 54 at the edge remote from end connectors 52 has test-point sockets for soldering to test point connectors 56 on the card.
Patent GB-1364426-A (GB)
Title: Pneumatic tyres
IPC: B60C9/26
Filed: 1970-09-11
Abstract: 1364426 Pneumatic tyres DUNLOP HOLDINGS Ltd 7 Sept 1971 [11 Sept 1970 17 Nov 1970] 43475/70 and 54520/70 Heading B7C A pneumatic tyre has a breaker assembly including a breaker 10 with folded edges; the breaker 10 consisting of one or, as shown in Figs. 1 and 3, two folded strips 11, 12 of rubberized parallel cord fabric and individual stiffening strips, e.g. 13-16, for the folded edge regions only of the breaker 10, each stiffening strip having a width substantially less than that of the breaker 10 and being made of a material whose modulus of elasticity is greater than that of the cord fabric of the breaker 10. The cords of the strips 11, 12 may be of rayon and disposed at a cord angle of 10-25 degrees. Each folded edge region of the breaker 10 may be provided with two layers of stiffening strip, the two layers either being provided by two separate stiffening strips, e.g. 13, 14, of cord fabric, as shown in Fig. 1, or by a single folded strip, e.g. 19, of cord fabric which may be located outside, as shown in Fig. 3, or inside (Fig. 2, not shown) the fold of the associated folded edge of the breaker 10. In the above described cases of two stiffening strip layers at each edge of the breaker 10, the axially inner edge of one layer may lie axially inwardly of that of the other layer, the cords of the two layers may be of steel or glass and cross-laid at a cord angle equal to or less than that of the strips 11, 12, and, in each layer, the cords may cross, or lie parallel to, the cords in the adjacent part of the respective strip 11, 12. The breaker 10 may alternatively have a single unfolded strip (21) of woven nylon mesh at each edge (Fig. 4, not shown), the cords or fibres of the mesh being disposed at a cord angle of 45 degrees. The stiffening strips may together occupy up to 70% of the axial width of the breaker 10, and one edge of the breaker 10 may be provided with a stiffening strip of different width or stiffness to a stiffening strip provided at the other breaker edge so as to create a tyre with asymmetrical properties. The breaker assembly may comprise further breakers consisting of single plies of reinforcing cords, and the tyre carcass may be of radial-ply construction and formed of metal, rayon, polyester or nylon cord fabric.