baber/WOPTO huggingface dataset:
Patent GB-1465670-A (GB)
Title: Speed limiting systems for wankel engines
IPC: F02P11/02
Filed: 1973-03-22
Abstract: 1465670 Ignition systems; limiting engine speed LUCAS ELECTRICAL Ltd 25 Feb 1974 [22 March 1973] 13782/73 Heading F1B A speed limiting system for a Wankel engine having first and second ignition coils controlled by first and second engine driven switches 55, 55a respectively and producing sparks in leading and trailing spark-plugs 59, 59a includes timing means operation of which is initiated by opening of the first engine driven switch and a thyristor 89 which when energized prevents either coil from producing a spark, the timing means serving to energize the thyristor so as to prevent production of sparks above a predetermined engine speed. As shown the thyristor is connected in series with first and second diodes 41, 42 respectively across the primary windings 54, 54a of the first and second coils. One or more of the resistors 75, 81 or 86 may be variable so that delay periods determined by them can be set to suit different requirements.
Patent GB-343833-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P7/34
Filed: 1930-05-05
Abstract: 343,833. Maintaining defined speeds of motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Horstkotte, E. H.; 1318, State Street, Schenectady, New York, U.S.A.) May 5, 1930, No. 13788. Convention date, May 4, 1929. [Class 38 (iii).] Varying electromotive force.-Motors 12 driving rolls of a paper-making machine &c. are supplied from individual generators 17. Variation of basic speed of the motors is obtained by variation of the voltage of supply 25 to the main fields 23 of the generators or by simultaneous variation of resistances 23a. Constancy of basic speed is maintained by a synchronous dynamometer regulator 30 varying the strength of auxiliary fields 26. The dynamometers are supplied with alternating current of a reference frequency by the motor-generator set 39, 36, the motor of which is supplied from a generator 37 whose field 38 is varied in unison with the fields 23.
Patent GB-369459-A (GB)
Title: Improvements in and relating to controlling means for internal combustion engines
IPC: F02D9/02
Filed: 1931-05-09
Abstract: 369,459. Aircraft engine control gear. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Puffer, S. R. ; 28, Prospect Street, Saugus, Massachusetts, U.S.A.) May 9, 1931, No. 13788. Convention date, May 9, 1930. [Class 4.] The throttle or other engine control 3 is connected to a hand-lever 6 which is frictionally clamped at 13 to a stop lever 8 so that the two move together, but the hand-lever can, when desired, be moved beyond the stop lever, the latter being automatically moved by an electric motor in accordance with some condition of apparatus operated by the engine, such as a clinometer or other automatic control of an aeroplane. The hand-lever may be latched to the stop lever by catches 15, 16 which are released when the handle portion 19 of the handlever is moved to the left. The stop lever is connected at 10 to a gear segment 11 engaging a worm 24 connected by a clutch 28 to further worm gearing 29, 30 operated by an electric motor 31, the rotation of which in either direction is controlled by a reversing switch 33. This switch is subject to two controls connected to a lever 35, namely (1) a bellows 36 connected to a bulb 39 in thermal contact with the engine cylinder and containing a liquid which is vaporized according to the cylinder temperature, and (2) a bellows 43 connected to the intake manifold 2 so as to respond to the supercharger pressure. When the throttle is fully opened, the stop arm 8 opens a switch 46 to cut out the motor 31. In the other direction the arm engages a stop 47 before the throttle is quite closed. The throttle can, however, be fully closed by the hand-lever 6. Also, in case of emergency in aircraft control, the engine may be loaded beyond what would be safe in ordinary circumstances, by moving the handlever beyond the stop arm in the direction of opening the throttle. The connection of the links 5, 10 to the lever 6 and segment 11 respectively are so chosen that equal effective opening movements of the throttle are obtained for equal movements of the segment 11. In a modification, one of the bellows 36, 43 is replaced by a solenoid in circuit with an arm moving over a variable resistance and actuated, for example, by a clinometer; or a single bellows device may be used.
Patent GB-615894-A (GB)
Title: Improvements in building constructional elements comprising translucent or transparent units and in the method of producing the same
IPC: E04C2/54
Filed: 1945-06-01
Abstract: 615,894. Glazed structures. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. June 1. 1945, No. 13820. Convention date, June 2, 1944. [Classes 20(iii) and 20(iv)] In a building construction, translucent o r transparent units are assembled with interposed metallic ties of wire or rod and joint-filling material, e.g. concrete, and the units and joint-filling material are compressively pre-stressed by applying a permanent tension to the ties. Wall or other sections may be prefabricated or assembed in situ. In a wall subject to lateral stresses, hollow bricks 1, Fig. 4, e.g. of tempered glass, are held together by tensioned ties 2 embedded in concrete close to the external surfaces, but where no lateral stresses are involved the ties may be arranged centrally. Figs. 5 and 6 show methods of stressing, comprising a screw jack 11 applied to ties 2a until the concrete sets around the corrugations 5. The glass &c. elements may be circular, polygonal &c., and for floors may be of open-box shape. The Specification as open to inspection under Sect. 91 contains the subject-matter of Specification 615,971, and states also that asphalt, bituminous or other plastic materials may be used as the joint-filling material. This subject-matter does not appear in the Specification as accepted.
Patent GB-517563-A (GB)
Title: An improved instrument for indicating the attitude and behaviour of aircraft in flight
IPC: G01C9/12
Filed: 1938-05-09
Abstract: 517,563. Level indicators for aircraft. LANGLEY, T. W., and TECALEMIT, Ltd. May 9, 1938, No. 13866. [Class 97 (ii)] An indicator for the attitude and behaviour of aircraft during flight comprises a casing 1 having a translucent front screen 3 upon which a representation of the aircraft is depicted, two tubes 6 whereby light from bulbs 7 passing through aperture 8 are reflected by mirrors 11, 11', to a mirror 13 mounted for universal movement and to remain perpendicular to gravitational force or to. the resultant of gravitational and centrifugal forces acting on the aircraft and thence by mirrors 15, 15<1> to the screen. When the aircraft is flying level the light beams H, H<1> are projected on to the screen to coincide with the marks 16, 16<1> on the aircraft representation, deviation of the beams indicating the mechanism of the aircraft other than level. The mirror 13 in frame 17 is mounted in a gimbal ring 18 mounted universally and is provided with a pendulum dipping into an oil receptacle 28. A " rate of turn indicator may be provided comprising a pointer 32 mounted on a shaft 31 attached to a frame 34 in which a shaft 38 is mounted having a gyroscope 35 driven by air jet nozzles 39. A restoring spring 37 for the frame 34 is provided and the pointer 32 is responsive to any gyroscopic couples set up. Modifications of the mirror 13 and also of the mirrors 11, 11<1>, 15, 15<1> as described.
Patent GB-925505-A (GB)
Title: Composition of matter useful as a neutron attenuant
IPC: G21C11/02
Filed: 1960-04-21
Abstract: Neutron shielding or attenuation material comprises a major proportion of solid particles of polyethylene or polypropylene and a minor proportion of a pourable settable organic binder.  The solid particles may be substantially spherical in shape and of three or more discrete sizes, varying for example by a factor of 10 or 100, so as to ensure close packing.  The preferred binder is a vulcanizable elastomeric material, for example a copolymer of butadiene and methacrylic acid, butyl rubber, polyisobutylene, or the polymers described in U.S.A. Specification 2,395,017; the use of waxes or asphaltic material is also referred to.  The shielding material may include a minor proportion of a neutron absorbing material containing boron, lithium, cadmium, samarium, gadolinium, europium, dysprosium, erbium, or iridium.
Patent GB-871257-A (GB)
Title: Helicopter aircraft
IPC: B64C39/00
Filed: 1958-05-01
Abstract: 871,257. Helicopters. JACKSON, R. E. May 1, 1958 [Oct. 15, 1957], No. 13976/58. Class 4. An aircraft having a cabin and sustaining rotors comprises at least one boom equipped with load-lifting means and adapted to be extended from the cabin, the boom being provided with a lifting rotor for fully or partly supporting its load when the boom is in the extended position. A fuselage 18, which may be double-walled and formed with de-icing apparatus in the wall cavities, is supported by lifting rotors 12, 14, 16 driven individually by motors located with fuel tanks, in the upper part of the fuselage. A propeller 30 mounted on a pylon 32 assists in forward propulsion and directional control is provided by a rudder 36. A hinged door is located at each end of the fuselage and each door carries a propeller 64 on a laterallyextending axis, the purpose of the doors and propellers being to assist in positioning the aircraft when hovering adjacent a building for rescue operations during a fire. Provision is made for spraying the aircraft with water under such conditions and tanks 150 containing fire extinguishing liquid are located beneath the fuselage between compartments 140 which house forward undercarriage units. The rear undercarriage unit comprises a pair of wheels 93 and a pontoon 96 to provide support when the aircraft hovers on water for purpose of filling tanks 150. The rear unit may be retracted by vertical movement and it may be steered. The fuselage carries extending booms 260, 300 each carrying a winch for raising loads and a driven propeller 288, 340 to support the respective boom when laden.
Patent GB-257344-A (GB)
Title: Improvements in apparatus for regulating the delivery of dough to dough proving machines and for like purposes
IPC: A21C9/08
Filed: 1925-05-29
Abstract: 257,344. Barker, F. May 29, 1925. Bread; setting-applzances. -Relates to mechanism for regulating the delivery of lumps of dough to proving and other machines and is suitable for feeding the machine described in Specification 233,761. The feed regulator comprises a rotary drum a having a cavity or cavities a' which is, or are, wiped by an apron on which the dough lump falls, from the conveyer g, and remains stationary until the apron falls into the cavity a<1> into which the dough rolls. The dough is then dropped into a shoot in which a positively operated flap valve m is mounted whereby the lumps are directed alternately into opposite ends of the same conveyer bucket or into separate buckets travelling in different places. The flap m is keyed on a shaft n carrying a pinion which engages a toothed quadrant integral with a lever arm carrying a bowl which engages a cam groove in a rotary disc u. In a modification, Fig. 5, a positively rotated roller replaces the apron.
Patent GB-767442-A (GB)
Title: Improvements in or relating to systems for ducting for electrical conductors
Inventor: MANTEL ARTHUR
IPC: H02G5/06
Filed: 1954-05-14
Abstract: 767,442. Conduits. MANTEL METALWORKERS, Ltd. May 16, 1955 [May 14, 1954], No. 14216/54. Class 36. [Also in Group X] A conduit system for rising conductors and distribution gear in a multi-storey building comprises metal trunks 3 of fixed length extending between the floors 1, 2, and telescopic trunks 4 having a part 5 slidable in a part 6 and linking the trunks 3 through the floors. Part 6 comprises a portion 7 extending through the floor and a portion 8 projecting above the floor. The portion 7 of trunk 4 is formed with inturned flanges 17, 16 at its upper and lower ends. Outturned flanges 18 at the lower end of portion 8 are welded to flanges 17. The slidable part 5 has screws 34 at its upper end which engage flanges 16 to hold the portions together, and inturned flanges at its lower end carrying metal strips which overlie inturned flanges 39 at the top of trunk 3. In installing the system, the upper end of a trunk 3 is placed against the slidable part 5 and lifted to raise part 5 so that the lower end of trunk 3 clears a locating strip 25 carried by portion 8. The lower end of the trunk 3 is then positioned on the portion 8 and lowered so that the back plate engages behind locating strips 25 and 41, the latter being carried by part 5. The trunk is then secured by screws 23, 40. The part 7 may include a fire barrier 27 of asbestos which is arranged level with the upper surface of the floor, and fixing brackets 31. Screws 42 are provided for fixing an earthing strip which extends over the whole length of the system. Specification 511,647 is referred to.
Patent GB-314183-A (GB)
Title: Improvements in and connected with advertising devices
IPC: G09F11/26
Filed: 1928-05-15
Abstract: 314,183. Glegg, G. R., and McIntire, C. S. May 15, 1928. Endless chain and like carriers, apparatus with; actuating. - An advertising device comprises a casing 15 having a glazed opening 37 behind which is displayed an endless chain of panels 9. The panels are held in frames 8 which have pins 11 projecting from their sides away from the corners, pins on adjacent frames being coupled by links 10. The pins 11 extend sufficiently far to engage notches 6<a>, 7<a> in discs 6, 7 fixed at the ends of shafts 4, 5 and forming carrying drums. The actuation of the chain is effected from a handle 27 of a note changing or other mechanism through a link 26, crank 24, and link 22 pivoted to a reciprocating spring controlled rod 20. To a point 19 of the rod 20 is pivoted a link 18 connected to a belt crank 14 carrying a pawl 13 provided with an arm 16 connected to the casing 15 by a spring 17. The pawl 13 engages studs 12 on the discs 6, and pulls the drums round the required distance at each depression of the handle 27, the springs 17, 21 restoring the pawl 13 and handle 27 to their original positions when freed. The actuating mechanism is duplicated on the other side of the apparatus. A registering device for bringing the panels 9 exactly into position consists of studs 36 on one of the discs 7 on which bear pivoted bars normally drawn parallel by a spring. Lamps 30, which may be faced by a diffusing screen 31, illuminate the displayed panel 9.
Patent GB-1330276-A (GB)
Title: Self-starting synchronous motor
IPC: H02K21/14
Filed: 1972-03-27
Abstract: 1330276 Permanent magnet synchronous motors DIEHL 27 March 1972 [5 April 1971] 14222/72 Heading H2A In a self starting synchronous motor comprising a permanent magnet rotor having poles of alternate polarity spaced uniformly around its periphery and a stator having two opposed parts each including narrow and wide poles, when a narrow pole 1 of one stator part is opposite a rotor north pole a narrow pole of the other part is opposite a rotor south pole and the wide poles 2 of both parts are between pairs of adjacent rotor poles. The motor therefore starts reliably even against a load since the electromagnetic and permanent magnet torques are at no position of the rotor simultaneously zero. As shown, narrow poles 1 and wide poles 2 of the stator parts are combined, but they may be separate, Fig. 7 (not shown). A given motor may comprise some combined and some separated narrow and wide poles.
Patent GB-1017428-A (GB)
Title: Load-controlled brake system
Inventor: DORNER ING HARRO
IPC: F16C11/06
Filed: 1963-04-10
Abstract: 1,017,428. Fluid-pressure brakes. G. SCHAFER, O. SCHAFER, G. SCHAFER JR., and O.SCHAFER JR. [trading as KUGELFISCHER GEORG SCHAFER & CO.]. April 10, 1963 [April 16, 1962], No. 14270/63. Heading F2F. In an hydraulic brake system for vehicles provided to control the braking effort applied to the wheel of an axle of a vehicle as a function of the load on the axle suspension, a fluid pressure developed by a brake master cylinder 24 is transmitted to the wheel brake cylinders via a pressure line 23, 25 through a shut-off valve 9 operable by a control piston 15 (Fig. 2, not shown), which is acted upon by the fluid pressure prevailing in the wheel brake cylinders as well as by the load on the axle suspension such that the control piston will close off the shut-off valve 9 upon the load on the axle suspension being reduced, so as to prevent the fluid pressure in the wheel brake cylinders from being increased. Any pressure developed in the master cylinder 24 will be transmitted to the pressure chamber 13 of the valve 9 and via a port 12, to a pressure chamber 14 (Fig. 2, not shown). This pressure acts on the pistons of the wheel brake cylinders as well as on the upper end of a control piston 15 and as soon as the force applied to the control piston 15 exceeds the opposing force of a control spring 6, the latter will be displaced in a downward direction to close a poppet valve 16 and port 12 (Fig. 2, not shown). Any additional increase in pressure developed in the master cylinder will no longer be transmitted to the wheel brake cylinders and continued downward displacement of the control piston 15 caused by the reduction in the load on the axle suspension produces a reduction in pressure in the wheel brake cylinders. When the load on the axle suspension is increased, the pressure in the wheel brake cylinders will again be increased until a screw plug 22 engages the stem 17 of the poppet valve 16 causing the valve 16 to be lifted from its seat so as again to uncover the port 12 (Fig. 2, not shown). Thereafter, any increase in the pressure developed in the master cylinder will be freely transmitted to the wheel brake cylinders. Various modifications are disclosed in the Specification, including one arrangement (Fig. 3, not shown), wherein should the control spring 6 or one of the linkages fail, any undesirable closing of the port 12 by the poppet valve 16 will be prevented by the provision of a by-pass line 26 including a spring-loaded relief valve 27. The load acting on the relief valve is such that the valve will close the by-pass line between the pressure chambers 13 and 14 whenever there exists in the chamber 14 sufficient pressure to brake the empty vehicle.
Patent GB-1293693-A (GB)
Title: Halopentenyl carboxylates
Inventor: NOMORI HIROYUKI
IPC: C07C69/007
Filed: 1971-05-11
Abstract: 1293693 Haloesters KURARAY CO Ltd 11 May 1971 [23 May 1970] 14280/71 Heading C2C Compounds of formula in which X is a halogen atom and R is a hydrocarbon radical, are prepared by reaction. of 4-methyl-5,6-dihydro-(2H)-pyran with an acid halide RCOX in the presence of a cationic catalyst.
Patent GB-1496502-A (GB)
Title: Composition and method for controlling wild oat
IPC: A01N37/46
Filed: 1974-04-01
Abstract: The composition is used for controlling wild oats in barley and wheat fields. It contains 4-chloro-2-butynyl m-chlorophenylcarbamate and methyl N-benzoyl-N-(3-chloro-4-fluorophenyl)-2-aminopropionate, which, together, act as synergists and allow wild oats to be controlled selectively.
Patent GB-378512-A (GB)
Title: Improvements in or relating to loading or conveying systems for use in mines
IPC: E21F13/06
Filed: 1931-05-14
Abstract: 378,512. Scoop apparatus for transporting material. BROWN, S. WALTON-, Seghill Hall, Dudley, Northumberland. May 14, 1931, No. 14333. [Class 78 (iv).] Scoop-type loading or conveying systems for use in mines are provided with a pair of spaced guides fixed on the mine floor across the direction of the line of advance of the working face to guide the scoops, the guides being advanced as required as the coal face recedes. Rail, girder, wood or like guides m\ m<2> are secured by uprights o passed through apertures in the guides which are parallel to the working face c. When the working face has reached the position c<1> the guide m<1> is moved to the chain line position so that the scoop d is again guided parallel to and in proximity to the coal face. Ropes or cables may be used instead 'of rigid guides. The guides may be advanced singly or both together. Lateral ramps, wearing strips, rollers, &c. may be fitted to the guides. Specification 352,930 is referred to.
Patent GB-739102-A (GB)
Title: Improvements in top drafting rollers for textile spinning and preparatory machinery
Inventor: NOGUERA JOSEPH
IPC: D01H5/74
Filed: 1953-05-21
Abstract: 739,102. Textile drawing &c. rollers. CASABLANCAS HIGH DRAFT CO., Ltd. April 1, 1954 [May 21., 1953], No. 14341/53. Class 120(2). [Also in Group VIII] A top roller for a spinning or preparatory machine including an arbor and a detachable boss comprises two spring members, each having an outer arm 6 and an inner arm 7, the arms 6 being shaped to press outwardly against the wall of a recess 5 in the boss 3 while the inner arms 7 grip the arbor 1. In their inoperative positions, the inner arms are spaced by mutual abutment of'their bent extremities 7a. Preferably the arbor 1 is grooved to receive the spring members and the mouth of the recess 5 may be closed by an annular sealing washer or by a cap and end pivot. Reference has been directed by the Comptroller to Specification 702,095.
Patent GB-1375132-A (GB)
IPC: C30B13/30
Filed: 1973-03-26
Abstract: 1375132 Zone melting SIEMENS AG 26 March 1973 [13 July 1972] 14409/73 Heading BIS A (III)-orientated monocrystalline semiconductor rod having a specific resistance which is lower at the central axis of the rod than at its outer surface is made by the non- crucible zone melting of a semiconductor rod supported substantially vertically at its ends by producing a molten zone in the rod of diameter greater than the rod to be produced by means of an annular inductive heating device surrounding the rod, causing the zone to pass through the rod from a (III)-orientated seed crystal located at one end of the rod at such a speed, e.g. at least 3.5 mm/min., that the boundary between the zone and the recrystallized portion of the rod presents a concave face towards the molten zone such that a (III)-tangent can be drawn to the boundary only at the central axis of the rod. The material of the rod is preferably silicon.
Patent GB-302399-A (GB)
Title: Process for making an elastic caoutchouc-like body
IPC: C08G75/02
Filed: 1927-09-16
Abstract: 302,399. Baer, J. Sept. 16, 1927. Divided on and addition to 279,406. Caoutchouc, synthetic.-An elastic caoutchouclike body is obtained by causing alkali sulphides or alkaline earth sulphides or ammonium sulphide to effect a polymerizing action on single or mixed saturated halogenized hydrocarbons of the Cn H2n + 2 group in the presence of aqueous alkaline, alcoholic or other solvent. Methylene dichloride, methylene dibromide, methylene iodide, ethylene dichloride, ethylene dibromide, ethylene iodide or a mixture thereof may be so treated. Specification 279,406 is referred to.