baber/WOPTO huggingface dataset:
Patent GB-840675-A (GB)
Title: Improvements in or relating to fuel systems and warning devices therefor
Inventor: ROBERTS NORMAN
IPC: F04D15/02
Filed: 1957-04-09
Abstract: 840,675. Centrifugal pumps. ROLLS-ROYCE Ltd. April 29, 1958 [April 9, 1957], No. 11627/57. Drawings to Specification. Class 110(1). A warning device is connected between a source of low-pressure fuel and a high-pressure fuel pump and gives a signal at a value of the inlet pressure of the pump which increases as the rate of fuel flow increases, for the purpose of indicating the imminence of cavitation in the pump. In an aircraft gas turbine engine fuel system, a Venturi is inserted in the fuel line between a booster pump and a centrifugal highpressure pump. Tappings from the inlet (or outlet) of the Venturi and from the throat of the Venturi are applied to opposite sides of a diaphragm or to the interiors of opposed bellows so as to exert a force proportional to the square of the rate of fuel flow and tending to close a switch. The inlet (or outlet) tapping is also applied to an evacuated bellows so as to exert a force proportional to the absolute inlet pressure of the centrifugal pump and tending to compress the evacuated bellows and to open the switch. The switch closes to illuminate a warning light when the inlet pressure has dropped to a value, in relation to the rate of fuel flow, at which cavitation in the centrifugal pump is imminent.
Patent GB-234269-A (GB)
Title: An improved device for gathering fruit from trees
IPC: A01D46/247
Filed: 1924-05-12
Abstract: 234,269. Talbot, F. C. May 12, 1924. Multiple-toothed d hand - operated clippers. - In a fruit gathering appliance of the kind comprising cutting - apparatus and a receptacle carried by a rod, the cutting-apparatus consists of two hollow open-ended cylinders formed with registering slots having co-operating sharpened edges to shear the stalks of the fruit, one of the cylinders being rotatable within the other and supported therein by pins and slots. The outer cylinder 5 is connected by a bracket 2 to the rod 1 and is provided with slots 9 to receive pins on the inner cylinder 6. One or more springs 11 normally hold the inner cylinder with its notches 7 in register with those of the outer cylinder. The sharp and blunt edges of the slots may be upright, sloping, or curved. A bag 15 secured to the outer cylinder is provided with a side opening 17 and with a hem 16 to allow of its lower end being adjusted. It may be tied to the cylinder or secured by means of a collar and a bayonet joint. The bag may be adjustable in length, the upper part c fitting into a lower part d carried by a ring 30. The rod 1 may be telescopic, the split, threaded, and tapered upper end of the lower part b being gripped on the upper part a by a clamping-nut 18. The fruit stalks are cut by partially rotating the inner cylinder by means of a cable 23 fastened to a reel 22, or an ordinary cranked lever, at the lower end of the rod. The reel 22 is held in normal position by a spring 29, and is rotatable by means of a pivoted lever 24 adjustably locked to it by a bolt 25 the head of which engages the sides a guide - channel 27.
Patent GB-267351-A (GB)
Title: Electromagnetic clocks
IPC: G04C3/027
Filed: 1926-05-03
Abstract: 267,351. Bulle, M. P. Favre-. May 3, 1926. Reciprocating and oscillating machines; magnets.-The magnet 5 on the pendulum 6 is stamped out of thin metal and may have the shape shown in Fig. 1, with two arms 65, 66; or it may have four arms 67 - - 70 as shown in Fig. 15. Also, by increasing the number of arms, a magnet is formed having a continuous outer surface surrounding the fixed coil 23. The ends of the arms may also be extended transversely. Alternatively, a flat magnet may be disposed horizontally.
Patent GB-650306-A (GB)
Title: Improvements in or relating to the manufacture of containers and the like
IPC: B65D5/56
Filed: 1947-05-02
Abstract: 650,306. Sealing cardboard &c. containers; paper bags. SATONA, Ltd., and GAUNT, T. N. May 2, 1947, No. 11895. [Classes 94(i) and 94(ii)] [Also in Group VIII] A heat-sealable waxed container in which a layer of thermoplastic adhesive substantially immiscible with the wax positioned on one or both of the surfaces to be sealed together the adhesive having been applied in the form of an aqueous dispersion underneath the wax. The invention is described as applied to a container of the kind in which the top of the container sides are folded inwardly between the tops of the front and back walls. the back wall having an upstanding flap which is folded over and sealed to the front of the top of the front wall. The adhesive is preferably one which softens at the melting point of the wax and may be a polyvinyl acetate resin; it may be applied to the blank by means of a roller.
Patent GB-622997-A (GB)
Title: Radio beacon system
IPC: G01S19/41
Filed: 1945-05-11
Abstract: 622,997. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. May 11, 1945, No. 11940. Convention date, June 26, 1944. [Class 40 (vii)] Relates to equi-signal glide-path beacon systems in which two overlapping radiation patterns of the same carrier frequency are amplitude-modulated with different frequencies, e.g. 90 and 150 c/s. When the aircraft receiver co-operating with such a beacon indicates the difference in amplitude of the demodulated signals, the width of the equi-signal zone varies inversely as the distance from the touch-down point when the receiver is provided with A.G.C., and the indicator becomes too sensitive in the final stages of the landing. According to the present invention the sensitivity is automatically reduced as the aircraft approaches the touch-down point by mutually spacing the two aerial systems producing the overlapping patterns so that the phase difference at the receiver between the carriers radiated from the two aerials increases and hence the resultant carrier is dephased by an increasing amount relative to the side-bands, resulting in a reduction in,the amplitudes of the signals obtained on demodulation and a consequent reduction in the sensitivity. As shown in Fig. 2, the two overlapping patterns are produced by two verticallyspaced horizontal dipoles 5 and 8 at heights H and h, the dipoles being also laterally displaced from the runway 12 by different amounts D and D-d, so that the phase difference at the aircraft 13 between the carriers received from the aerials 5 and 8 is a function of the vertical and horizontal spacing of the aerials and the distance of the aircraft from the touch-down point. The two overlapping patterns each comprise multilobe patterns, Fig. 1 (not shown), the equisignal glide-path being defined by the intersection of the bottom lobe of each pattern. Specification 546,668 is referred to. In the Specification as open to inspection under Sect. 91, it is stated that the aerials may be arranged so that the phase difference caused by the horizontal spacing compensates that due to the vertical spacing and it is also stated that the invention is applicable to azimuthal beacons. This subject-matter does not appear in the Specification as accepted.
Patent GB-1391971-A (GB)
Title: Apparatus for inserting coil turns into the slots of a magnetic core
IPC: H02K15/10
Filed: 1972-03-15
Abstract: 1391971 Inserting electrical coils into cores GENERAL ELECTRIC CO 15 March 1972 [19 March 1971] 12053/72 Heading B3A [Also in Division B8] An apparatus for inserting the side turn portions of electrical coils 110 into axial slots 32 of a magnetic core 30 comprises coil inserter members 40 which are movable relative to the core 30 by a preselectable distance and an adjustable core holder 92, 93 for accommodating cores 30 of varying height. The stator core 30 is held against axial movement by latches 92, 93 which are connected to piston-rods 94, 95 of cylinders 94a, 95a. When the cylinders 94a, 95a are actuated, cam blocks 96, 97 are raised from control members 77, 90 by the piston-rods 94, 95 until the underside of a plate 22 is engaged whereupon followers 98, 99 on the rods 94, 95 move within cam tracks 100, 101 causing the latches 92, 93 to swing into a clamping position. The insertion operation is initiated by raising a plate 55 by a piston-rod 58 of a cylinder (not shown) to cause pushers 50 to push insulator strips 51 from apertures 47 of a rotatable insulator magazine 45 and through guides 28 fixed to a housing 23 to a position just below coil turn feeder blades 40 which are connected to a rod 42. Upon further upward movement of the plate 55, the lower end of the rod 42 is engaged by a control member 60 causing the upward movement of the feeder blades 40 and, through a slip clutch 44, of a plate 36 connected by a rod 35 to a plug 34 to which are connected divider blades 33 positioned between the blades 40. The further upward movement of the divider blades 33 is prevented by stops 76, 89 engaging the plate 36, the continued movement of the insulator pushers 50 and the blades 40 causing the insulators 51 and coils 110 to be moved into the core slots 32. After the inserting operation, the feeder blades 40 and divider blades 33 are manually moved downwardly by a handle 43, or alternatively the rod 42 is lowered by a member (143) (Fig. 11, not shown) when the pistonrod 58 is lowered. The blades 33, 40 may be rotatable. The insulator strips 51 are fed into the magazine 45 from a severing apparatus (124) (Fig. 11, not shown) into which an insulator strip (127) is fed a preselected distance by a toothed, pivotally mounted pawl (130) which is reciprocated by a rod (135) and drive wheel (137) and whose feeding stroke is controlled by a stop member (139). The strokes of the blades 33, 40 the cam blocks 96, 97 and the insulator strip feeding pawl (130) are adjustable to accommodate cores 30 of different heights by rotating the control members 60, 76, 77, 89, 90, (139) to present a different surface of the control member in the operating position. Each control member is mounted on a shaft 61, 67, 85, 81 which is rotatable by a control knob (121) (Fig. 1, not shown) via sprockets and chains for a minimum core height, the control members may be set such that the insulators 51 are short and no movement of the divider blades 33 occurs.
Patent GB-1404892-A (GB)
Title: Pneumatic vehicle tyre
IPC: B60C9/26
Filed: 1973-03-13
Abstract: 1404892 Pneumatic tyres CONTINENTAL GUMMI-WERKE AG 13 March 1973 [20 March 1972] 12057/73 Heading B7C A pneumatic tyre comprises a tread reinforcing belt which includes a first ply 5 provided with folded over edge portions 7, 8 which overlap to one side of the midcircumferential plane 9 and a second ply 6 enveloped by the first ply, the second ply being strengthened, only in the region of the edge on the other side of the plane, by a folded over edge portion 11 or by one or more strips of material placed thereon. In the illustrated tyre, the overlap 10 has an axial width between <SP>1</SP>/ 6 T and “T, T being the axial width of the belt, and the edge portion 11 has an axial width of between <SP>1</SP>/ 5 T and <SP>1</SP>/ 3 T. The ply 6 comprises parallel, textile cords having a cord angle α, and the ply 5 comprises steel cords having a cord angle #, α<# and 10‹<#- α<15‹.
Patent GB-363595-A (GB)
Title: Improvements in or relating to x-ray installations
IPC: A47C20/04
Filed: 1931-04-23
Abstract: 363,595. Rontgen-ray tubes; cables. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. April 23, 1931, No. 12086. Convention date, April 30, 1930. Addition to 293,731, [Class 36, Electricity, Conducting &c.]. [Class 39 (i).] In X-ray installations in which cooling liquid for the X-ray tube is led through a passage in the electric supply cable as in the parent Specification, the cable and the connection of the cable to the tube are so constructed that the cooling medium is not electrostatically loaded, the formation of gas in the medium being thus avoided. The hollow conductor 19 of the cable contains concentric rubber tubes 18, 16. A nipple 20 at the end of the tube 16 is fixed within a bush 14 at the end of a tube 12 carrying the anticathode head. The resilient edge 15 of the bush 14 contacts with a contact 21 on the conductor 19 and the tube 18 fits over a tube 13. The cooling liquid is supplied through the tubes 18, 13 and is discharged through the tubes 12, 16 and is everywhere in a fieldless space. A metal cover 17 on the cable is joined to the metal envelope 26 around the X-ray tube 10 and an insulating block 22 cemented on the end of the cable fits into a block 27 at the end of an insulating tube 28 around the tube 10. The cooling medium is circulated by an electrically driven pump.
Patent GB-1483070-A (GB)
Title: Brake valve
IPC: B62D11/08
Filed: 1974-08-31
Abstract: 1483070 Brake valves S SHIBER and R H HUSTED 31 July 1974 [14 May 1974] 12120/77 Divided out of 1483069 Heading F2F A brake valve 10 providing a pressure output in response to a driver's force input or using the latter when hydraulic power is insufficient comprises a variable volume chamber 49 having a fluid inlet including a check valve 48 and a pressure output port, actuating means including a shaft 19 for accepting an operators force input, the housing including a wall movable for reducing the volume of the variable volume chamber and a variable orifice 59 bypassing the movable wall, a flow passage through the brake valve from the inlet, through the chamber 49 to the orifice 59 and means including a reaction piston 31 connected with the actuating means and movable relative to and engageable with the movable wall for selectively restricting and closing the orifice 59 and then shifting the movable wall so that during power operation the force input causes restriction of the orifice and flow through the passage to increase pressure at the output port and during manual operation the orifice 59 is closed and the wall is moved to reduce the volume of the chamber 49 and manually pump fluid through the output port. The orifice 59 is a circumferential variable orifice formed between annular piston 15 and piston 31 and narrows in response to the force input and during "power-off" operation the input force causes'piston 15 to abut piston 31 and pull it towards the end wall while maintaining the orifice 59 closed.
Patent GB-1430702-A (GB)
Title: Electron gun assembly for colour cathode-ray tube
IPC: H01J29/50
Filed: 1974-03-19
Abstract: 1430702 Electron guns HITACHI Ltd 19 March 1974 [21 Sept 1973] 12138/74 Heading HID An in line electron gun assembly for a colour C.R.T. comprises 3 guns each including a heater 5, 6, 7 connected at equal intervals along a member 80 having an increased area 80a where the heater of the central gun is connected. The increased area loses more heat by radiation which compensates for thermal radiation received by the central gun from the outer guns and maintains the guns at the same temperature. This improves activation and extends the life of the central heater. The members 80, 90 are supported on glass members 1. Alternatively members 80, 90 may be replaced by conductive coatings on a single insulating support.
Patent GB-1240423-A (GB)
Title: Preparation of ketones
IPC: C11B9/00
Filed: 1970-03-13
Abstract: 1,240,423. Ketones. R. J. REYNOLDS TOBACCO CO. 13 March, 1970 [13 March, 1969], No. 12275/70. Heading C2C. Compounds of the formula where R is methyl or isopropyl, R<SP>1</SP> is methyl, isopropyl or isopropenyl while R<SP>11</SP> is H, or R<SP>1</SP> and R<SP>11</SP> together represent a group of the formula are prepared by pyrolysing compounds of the formula Compounds of the formula are also produced.
Patent GB-1264043-A (GB)
Title: Thread package
Inventor: LAHMANN ALBERT HEINRICH JURGEN
IPC: B65D85/04
Filed: 1969-03-07
Abstract: 1,264,043. Thread dispenser. GUTERMANN & CO. A.G. March 4, 1970 [March 7, 1969], No.12311/69. Addition to 1, 009, 821. Heading A4G. A container 62, Fig.15 e.g. of plastics for a coreless cap of thread 73 has end flanges 65-67 whereby end caps 63, 64 are engaged on the container, cap 64 having different sized openings 71, 72 for supporting the container on a peg of a sewing machine while cap 63 has an orifice 77 through which the thread is dispensed. Sliding on cap 63 via flanges 75 engaging flanges 76 is a cover 74 having a thread orifice 78 and a projection 81 entering cap depression 82 when the cover is slid to make orifices 77, 78 coincide and entering orifice 77 to grip the thread when the passage through the orifices is closed. The cover may be a lid 21, Fig.10 connected to cap 24 for the container by a plastics hinge 22 and gripping the thread when closing the open end orifice. Thread may be back wound in a peripheral groove around the cap flange 78, 28, the casing may be cylindrical or in two oval section halves 61, 62 and may have an orifice in cap 64 for blowing through the cap to project the leading thread.
Patent GB-122208-A (GB)
Title: Improvements in and relating to Wire Retaining Means for Fence Droppers and the like.
Inventor: LOWICK RICHARD CAPELL
IPC: E04H17/12
Filed: 1917-08-28
Abstract: 122,208. Lowick, R. C. Aug. 28, 1917. Droppers for wire fences, of U or similar section, are formed with two plain slots B, C having parallel or converging edges for the purpose of retaining the fence wires in position. The slots are oppositely inclined and situated so that the rear top edge of one slot is slightly lower than the corresponding lower edge of the other slot, the wire being thus slightly bent when placed in position after straining.
Patent GB-289481-A (GB)
Title: Improvements relating to electrical measuring instruments for alternating current circuits
IPC: G01R11/56
Filed: 1928-04-27
Abstract: 289,481. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Bradshaw, W. M., and Oman, C.). April 29, 1927, [Convention date]. Addition to 227,104. Special quantities, registering; power factors, measuring.-A meter such as that described in the parent Specification is provided with means for stopping it when the energy flow reverses. For this purpose the watt-hour meter 1 drives a ratchet wheel 107 which is arranged to slip over a pawl 110 when the meter is running in the normal direction, but to engage it and stop the meter if this reverses. In the latter case an extension on the pawl 110 engages with a gearwheel 30 on a shaft 26 driven from the kilovoltampere-hour meter 2 and stops that likewise. The clockwork driving the recording chart 63 is not interfered with, so that the periods of reversal are marked on the chart.
Patent GB-1154435-A (GB)
Title: Thermostatic Immersion Heater
Inventor: HORNE ALEXANDER DEWAR
IPC: F24D3/08
Filed: 1967-03-17
Abstract: 1,154,435. Thermostatic immersion heaters. HEATSTAT Ltd. 11 March 1968 [17 March, 1967], No. 12620/67. Heading F4S. A thermostatic immersion heater for heating fluid in a tank 10 comprises a support plate 11 from one side of which project a temperature sensing device 15 and a heating coil tube or one or more U-tubes 12 through which a heating fluid, e.g. steam, passes and on the other side of the plate a heating fluid delivery pipe 13 has intercalated therein a thermostatic valve 14 operatively connected to the device 15. The support plate 11 is connected to an annular flange 28 on the tank by bolts 16 so as to allow the heating coil or the like and the device 15 to project into the tank. The free end of the or each heating tube has an inlet connected by a pipe union to the pipe 13 and an outlet connected by a union to a return conduit of the pipe.
Patent GB-149779-A (GB)
Title: An improved portable lock
IPC: E05C19/18
Filed: 1919-05-20
Abstract: 149,779. Temple, E. B., (formerly Bregeon, E.). May 20, 1919. Portable locks and fasteners. - A portable fastening for drawers, doors, &c., of the kind comprising a strip turned up at one end to engage a fixed member and provided with holes or gripping-places for engagement by a lock, is constructed with a metal strip 1 with transverse slots or with attached metal ribs and formed with a hook and pin at one end. The strip extends through a lock fitted with levers 4, 9 having openings for the passage of the strip and projections to engage the slots therein after adjustment along the strip. A flexible or textile extension strip 2 may be applied to the strap and be provided with slots or ribs for engagement by the lock levers, or these may have spikes to engage the textile strip, disengagement being effected, according to the Provisional Specification, by the provision of frames between the lock levers.
Patent GB-447946-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/14
Filed: 1935-04-29
Abstract: 447,946. Converting. BRITISH THOMSON - HOUSTON CO., Ltd., Crown. House, Aldwych, London. April 29, 1935, No. 12768. Convention date, April 28, 1934. [Class 38 (ii)] [See also Croup XL] A double-wave rectifier, which is described in Specification 432,177, [Group XL], is surrounded by a coil 33 energized through a Selsyn motor 34 from a three-phase supply 35. The tube is connected to the supply 35 through a transformer 29, the centre tapping on the secondary of which is connected to the cathode through an ammeter 31 and the load 30, and the cathode heater is energized through the transformer 37. The point in each cycle at which the tube is ignited can be varied by rotation of the armature 36. A curve showing the relationship between the igniting potential and the field strength is contained in the Specification. Specifications 447,947 and 449,807 are referred to.
Patent GB-718312-A (GB)
Title: Chock release device
IPC: E21D15/60
Filed: 1952-05-20
Abstract: 718,312. Mine chock releases. COOKSON, F. May 20, 1952 [Jan 8, 1952], No. 12779/52. Class 20 (2) A chock release comprises two wedges a, b, Fig. 1, held together by a latch d pivoted on the wedge a and penetrating through a slot in the vertical face of the wedge b, the latch d having inclined faces e engaging inclined faces f on the wedge b and the inclination of these faces being such that they are non-self locking, the latch d being held in the locking position by an auxiliary latch h pivoted at g to the wedge b. The auxiliary latch h has a slot i through which the end of the latch d extends and the bearing surfaces e<SP>1</SP>, e<SP>11</SP> on the upper and lower edges of the slot i are curved. A stop m on the latch h limits its position in relation to the main latch d. Upward swinging of the latch h and hence the release of the chock is effected by two conical screws p<SP>1</SP>, p<SP>11</SP>, Fig. 4, .connected by a rod q suspended on a chock piece s, the screws being turned by a flexible shaft v to force the ends of the latches h outwards. In a modification, the auxiliary latch h', Fig. 3, (not shown), is not pivoted directly to the upper wedge b but through the intermediary of a toggle lever r.
Patent GB-611439-A (GB)
Title: Improvements in or relating to the production of alkali metal perborate compositions
IPC: C01B15/12
Filed: 1946-04-29
Abstract: Alkali metal perborate compositions are prepared by mixing boric acid (i.e. boric oxide, ortho- or pyro-boric acid) or an alkali metal borate, e.g. borax, with hydrogen peroxide, an alkali metal peroxide or hydroxide and sufficient water to cause reaction between the boron compound and the peroxide and to form a substantially homogeneous solution, and rapidly dehydrating the solution until a homogeneous solid product is obtained.  The dehydration, the temperature of which is not lower than 100 DEG  C. and preferably is between 100 DEG  and 150 DEG  C., may be continued until the residual water content of the product is not more than 5 per cent in excess of that required to be equivalent to the H2O2 content as calculated from the active oxygen content.  The proportion employed may be from 0.2 to 0.96 mol. and preferably from about 0.8 to 0.96 mol. of Na2O2 for each mol. of Na2B4O7.  Other salts of boric acid, i.e. metaborates or tetraborates, may be used instead of borax.  The stability in storage and in solution may be increased by addition of sodium pyrophosphate or of sodium silicate and magnesium sulphate.