baber/WOPTO huggingface dataset:
Patent GB-1515127-A (GB)
Title: Circuit arrangement for the quasi-continuous control of ac power
IPC: G05F1/45
Filed: 1975-05-22
Abstract: 1515127 Automatic control of power and temperature LICENTIA PATENT VERWALTUNGS GmbH 22 May 1975 [22 May 1974] 22402/75 Heading G3R An arrangement for controlling the power delivered to an A.C. load through anti-parallel thryristors includes circuits for deriving signals indicative of the load current and voltage. One of these signals is then used by a modulation circuit to switch the other signal for time periods related to its magnitude, so that an output indicative of actual power is produced for comparison with a reference value. The timing ratio and switching frequency of the thyristors are controlled in dependence on the comparison. As shown in Fig. 1, the temperature of a load V supplied from A.C. lines N is measured by a sensor F and compared with a desired value to form a required value signal PSOLL for the power to be supplied to the load. Rectifiers G1, G2 produce signals proportional to the load current and voltage respectively, the current signal being used to determine the timing ratio and frequency of a multivibrator M including an operational amplifier O1. The output of the multi-vibrator switches a transistor p connected to the output of the rectifier G2 so that an actual load power signal P IST  is formed and then summed with the required valve signal P SOLL . The resulting difference signal is fed by way of a comparing operational amplifier 02 to a synchronizing circuit S which controls the firing of antiparallel thyristors Th1, Th2 and thereby regulates the power supplied to the load V so as to maintain it at the desired temperature.
Patent GB-1510624-A (GB)
Title: Method of dynamically stationing a floating vessel
IPC: G05D1/02
Filed: 1974-05-20
Abstract: 1510624 Automatic position control SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 16 May 1975 [20 May 1974] 22454/74 Heading G3R The position of a floating vessel e.g. for drilling is automatically controlled by an inertia position locating system that is periodically updated at predetermined time intervals by signals from an auxiliary position locating system. The auxiliary system uses taut wire or riser angle indicating systems, or acoustic or radio wave systems, preferably with updating according to the mean values of reliable signals from the auxiliary system, unreliable signals (checked by a computer on a statistical basis) being disregarded. Updating may, additionally, be made by means of a satellite position locating system.
Patent GB-428571-A (GB)
Title: Waterproofing composition
IPC: C08L95/00
Filed: 1934-08-01
Abstract: A waterproofing-composition for brick, cement or concrete consists of bituminous material such as natural bitumen or artificial pitch dissolved in linseed or other oxidizable solvent oil and emulsified with water by means of colloidal clay, hydrated lime and calcium chloride.  The emulsion may be used as a paint or added as an ingredient in making cement or concrete.ALSO:A waterproofing - composition for brick, cement or concrete consists of bituminous material such as natural bitumen or artificial pitch dissolved in linseed or other oxidizable solvent oil and emulsified with water by means of colloidal clay, hydrated lime and calcium chloride.  The emulsion may be used as a paint or added as an ingredient in making cement or concrete.
Patent GB-614783-A (GB)
Title: Improvements in and relating to generators for motor cycles or the like
IPC: H02K21/22
Filed: 1946-07-29
Abstract: 614,783. A.C. Generators. BRITISH THOMSON-HOUSTON CO., Ltd., HIGGS, V. A., and GRIFFITHS, L. July 29, 1946, 22552. [Class 35] An A.C. generator is mounted inside the crank-case of an internal-combustion engine, the rotor being carried by the flywheel and the stator by the crank-shaft bearing hub. As shown, the annular multi-polar magnet 11 surrounding the stator core 7 is secured in non- magnetic material 10 secured to or integral with the fly-wheel 3 of a motor-cycle engine and there may be a second similarly mounted generator in the other half of the crank-case. U.S.A. Specification 1,946,513 is referred to.
Patent GB-650195-A (GB)
Title: Improvements to the induction system of radial internal combustion engines
IPC: F02B75/22
Filed: 1948-08-27
Abstract: 650,195. Induction pipes. JAMESON, J. L. Aug. 27, 1948, No. 22582. [Class 7 (ii)] In a four-stroke engine, having two banks of four radial cylinders arranged in x formation with the cylinders in longitudinal alignment, one induction chamber 12 supplies mixture to the cylinders 4, 6, 8, 10 in one plane, and another induction chamber 13 supplies the cylinders 5, 7, 9, 11 in the other plane. Space is made for the chambers 12, 13 by connecting the pistons of the cylinders 5, 6, 9, 10 to the outside of the crank pins of a two-throw crankshaft. The firing order is preferably 4, 11, 6, 9, 10, 5, 8, 7. Combustible mixture may be supplied by two separate carburetters, but alternatively fuel may be injected into air pipes connected to the chambers 12, 13 each air pipe having an adjustable throttle valve. Specification 631,659 is referred to.
Patent GB-1286344-A (GB)
Title: Improvements in or relating to rotary clothes dryers
Inventor: DORRINGTON CHARLES
IPC: D06F57/04
Filed: 1970-05-11
Abstract: 1286344 Clothes airers 20TH CENTURY HARDWARE Ltd 11 May 1971 [11 May 1970] 22599/70 Heading A4U In a rotary clothes airer having radial linesupporting arms 5 pivoted to a plastics collar 3, slidable along and rotatable on a tubular post 1, the arms are pivotally connected by the rods 7 to legs 15 of a tubular plastics support member 8 which is rotatablv mounted on the top of the post through a ball bearing in which balls 19 are disposed between an outer race 16 abutting the conical end wall 13 of the support and an inner race 17 secured to a plug 18 inserted in the upper end of the post. The plug 18 has a flange 21 abutting the upper edge of the post and a threaded bore engaged by a bolt 23 inserted through an aperture 14 in  the end wall 13 to rotatably retain the support member on the post. A line or lines 10 suspended between the arms is maintained at the required tension by location of the collar relative to the support by selective engagement of a projection on the collar with one of a series of notches on a member 9 depending from the support. In modifications, the ball bearings are replaced by taper roller or needle roller bearings.
Patent GB-823719-A (GB)
Title: Process for splitting steroid racemates
IPC: C12P33/00
Filed: 1956-07-20
Abstract: Racemates of d,l-steroids are resolved by subjecting the racemate to the action of oxidizing enzymes produced by aerobic cultures of micro-organisms and isolating the l-form of the starting steroid and/or the oxidation product of the d-form of the starting steroid. Preferred enzymes are those which hydroxylate steroids, particularly in positions 6, 7, 11, 14, 15, 16, 17 and 21, or which introduce oxo groups into the 11-position, or which introduce a nuclear double bond, particularly in the 1 : 2-positions.  Detailed lists of organisms which effect these reactions are given.  The process may be carried out using several micro-organisms in a single operation.  The starting materials may be d,l-steroids of the cholestane, coprostane, cholane, spirostane, furostane, butanolide, cardanolide and more especially the pregnane, androstane and testane series, the compounds bearing any of the usual substituents and optionally containing double bonds; many compounds are specified.  Detailed examples illustrate the treatment of the following d,l-steroids with various micro-organisms: progesterone, pregnenolone, cortexone, its 17a -hydroxy analogue, cortisone, estradiol, androsterone, aldosterone, 17a -hydroxy corticosterone and its 21-trimethylacetate, 9a  - fluoro - 11b  - hydroxyprogesterone, the (18 -\sY 11b ) lactone of D 4-3,20-dioxo-11b -hydroxypregnene 18-acid, and D 4-3,18,20-trioxo - 11b  - hydroxypregnene.  Specification 821,777 is referred to.
Patent GB-465930-A (GB)
Title: Improvements in or relating to machines for cutting up bulbous roots and the like
IPC: B26D3/18
Filed: 1936-08-18
Abstract: 465,930. Cutting and slicing vegetables. WEIRAUCH, B. Aug. 18, 1936, No. 22676. [Class 5 (i)] Carrots, beets, turnips, and other bulbous roots pass from a hopper 24 into a casing 16 round which they are forced by the vanes 19 of a rotary member to a slot 7 leading to a second casing 52. A knife 25, adjustably secured by screws 26, is positioned in the slot and cuts slices off the roots as they are forced past it : the distance between the casing 16 and the outer edges of the vanes 19 increases from the knife 25 round to the edge of the slot 7. A rotary drum 50 is mounted in the casing 52 and carries a ring 35 to which radially arranged knives 53 projecting into the annular space between the casing and the drum are secured. The slices cut off by the knife 25 are forced laterally against these knives by an abutment 34. The strips passing out between the rotary knives are again cut by stationary knives 41 secured to the casing and fall on to a jigging conveyer 56. The moving parts of the machine may be actuated from fast and loose pulleys 22, 23 or may be driven by an electric motor.
Patent GB-1197664-A (GB)
Title: Semiconductor Devices.
Inventor: BENNETT ROGER FILLMORE CALMEAD
IPC: H01L23/16
Filed: 1968-05-14
Abstract: 1,197,664. Semi-conductor devices. WESTINGHOUSE BRAKE ENGLISH ELECTRIC SEMI-CONDUCTORS Ltd. 24 April, 1969 [14 May, 1968], No. 22852/68. Heading H1K One electrode 8 is held in contact with the surface 2. of a semi-conductor element 1 by resilient means, such as Belleville washers 17, acting between a shoulder 18 of a housing 11 enclosing the element, and an insulating body 19. The body 19 is urged directly on to the electrode 8, and is provided in its lower face with a recess which serves to locate the electrode 8 laterally relative to the element 1. The body 19 is itself located laterally by being a close fit within the walls of the housing. An aperture through the body 19 accommodates leads 9, 5 respectively from the electrode 8 and from a second electrode 4 bonded to the surface 2. As shown, the non-bonded pressurized electrode 8 is annular, but it may instead comprise the central electrode, the outer one then being either bonded or non- bonded. Alternatively, the two electrodes may be disposed side by side. In the embodiment the electrode 8 is of Au-plated Mo and the body 19 is moulded from glass which binds together fine mica particles. An Ag disc 13 lies between the element 1 and the base 12 of the housing to provide a further non-bonded contact.
Patent GB-166260-A (GB)
Title: Electron discharge devices especially for use in wireless communication
IPC: H04B1/16
Filed: 1919-09-17
Abstract: 166,260. Taggart, J. Scott-. Sept. 17, 1919. Vacuum tubes. - A thermionic valve having a " negative resistance " characteristic comprises a filament, a main anode, and an auxiliary anode, an increase in the potential of the main anode being caused to increase the electron current to the auxiliary anode and consequently to reduce the current to the main anode. The filament F is connected to the main anode A through a battery C and terminals such as F<1>, H are provided across which any circuit having positive resistance may be connected. The auxiliary anode B is given a positive potential by the battery D, and a grid G between the filament and the anode B is connected to the main anode A through a potential source E. If the potential of A is increased, the potential of the grid G is also increased, and consequently the electron flow to the anode B is increased. As the total electron emission of the filament is being utilized, thisresults in a reduction of current through the anode A. The circuit ACF thus has a negative resistance which may wholly or partially neutralize the positive resistance of the circuit connected across F<1>, H. If desired, the point F<1> may be connected to the grid G instead of the connection A, E, G. The variation in voltage may be amplified by an ordinary thermionic valve before applying it to the grid G. In a modification, described in the Provisional Specification, a resistance is placed in the circuit of the anode B, and connection is made from a point in this circuit to a grid placed between the filament and the anode A. This grid serves to increase the fall of current to anode A when its potential is increased. In another modification, an oscillatory circuit is connected across the filament F and a control grid' between the filament F and anode A. The circuit of anode A includes an oscillatory circuit and a telephone shunted by a condenser. The control grid may alternatively be connected to a point on a series resistance in the circuit of anode A.
Patent GB-837779-A (GB)
Title: Improvements in or relating to dynamoelectric machines
IPC: F04D25/06
Filed: 1957-07-19
Abstract: 837,779. Centrifugal fans. GENERAL MOTORS CORPORATION. July 19, 1957 [July 24, 1956], No. 22908/57. Class 110 (1). [Also in Groups XXXIV and XXXV] A centrifugal fan is mounted within a volute-form housing 80 by spider members 89, 90 positioned across the air inlet openings 81 and carrying within rubber bushings 87, 88 a stationary shaft 15. The driving motor rotor 11, supported on shaft 15 by ball bearings, has screwed to its outer periphery the radial blades 83 of the fan rotor, such blades being positioned between and secured to annular rings 84, 85.
Patent GB-390397-A (GB)
Title: Improvements relating to advertising devices
IPC: G01N3/16
Filed: 1932-08-16
Abstract: 390,397. Testing physical qualities of materials. GOODYEAR TIRE & RUBBER CO., 1144, East Market Street, Akron, Ohio, U.S.A. Aug. 16, 1932, No. 22942. Conven. tion date, July 6. [Class 106 (ii).] A device for demonstrating the properties of pneumatic tyres and their parts comprises a tensioning machine 10 and a " proving ground " 50. The tensioning machine has a screwthreaded shaft 21 rotated by a hand-wheel 25 and screwing through a nut 32 fitted in a carriage 29 riding on a bar 26. Clamping means 38, 48 on the carriage 29 and a fixed base 47 serve to secure two cords &c. the relative strengths of which are to be tested. A space is provided on the top face of the machine to receive advertising matter, and calibrations may be arranged near the carriage. The "proving ground " 50, shown in plan in Fig. 5, consists of a plate on which are miniature representations of a rail-road track 52, a kerb 53, stones, &c. 54 and a rut 55. On passing a miniature tyre over these its reactions to the obstructions may be demonstrated. Spaces 56, 57 receive advertising matter. The " proving ground " 50 is adapted to be inserted in the machine 10 for storage purposes, a lug 34 under the carriage 29 retaining it in place.
Patent GB-1070566-A (GB)
Title: Cathode-ray and other vacuumized tubes
IPC: H01J9/24
Filed: 1964-06-04
Abstract: <PICT:1070566/C1/1> A cathode-ray or other vacuum tube envelope comprises a funnel-shaped body member sealed to a face-plate 12 with at least one reinforcing band 20 of thin rolled high-tensile strength material surrounding the face-plate and tensioned to introduce compressive stresses into the envelope sidewall with a circumferential annular space between band 20 and the envelope sidewall and at least one access opening 20f into the annular space, for introducing adhesive. Band 20, preferably of aluminized steel, is formed of parts 20a and 20b welded together, then heated, fitted over the tube and cooled. The annular space is formed by beading 20c in band 20 with double beading 20d at the corners. A metal strap 22 is secured around the envelope wall by clip 23 or spot-welding to overlap the edge of band 20.  The annular space is filled with an adhesive (24) such as epoxy or polyester resin to bond band 20 to the envelope.  One band 20 may be used without strap 22.  The annular space may be formed by a recess in the periphery of the envelope wall.  Mounting brackets may be secured on band 20.  A coating of glass fibre cloth impregnated with synthetic resin may be adhered over the remaining nonviewing surface of the tube.
Patent GB-889491-A (GB)
Title: An erectable connection for physics instructional apparatus and the like
IPC: G09B23/12
Filed: 1960-07-01
Abstract: 889,491. Tube couplings. WINKLER, V. July 1, 1960 [July 4, 1959], No. 23144/60. Class 99(1). An erectable connection for physics instructional apparatus which works under vacuum and is adapted to be assembled from individual components on the unit construction principle comprises a sleeve 1 and one other component part, e.g. a sleeve 2 each with interrupted outer flanges 3, 5 at at least one end, a resilient sealing means, e.g. a bearing washer 13 and a packing ring 17, and a clamping ring 8 having inner flanges interrupted complementary to flanges 3, 5. The ring 8 is moved axially so that its flange parts move in the interruptions in the flanges 3, 5 until the flange inner surfaces of the ring 8 are at the same level as the outer surfaces of the flanges 3, 5 when a twist of the ring 8 will secure the sleeves 1, 2 together. To provide satisfactory sealing the flanges on the ring 8 and for the flanges 3, 5 are designed at rising wedges. A closure cover 9 and a connection port 11 may be secured to the free ends of sleeves 1, 2 in a similar manner. The washer 13 comprises a number of radial projections 15 which are formed with apertures 16 for fitting the particular system required in the apparatus. Alternatively a continuous inner flange may be provided. The ring 13 may have apertures provided in the cylindrical part adapted to register with corresponding bores in the shoulder of flanges 3 to 6, 10 and 12, whereafter the ring 13 may be located by pushing a pin through the registering bores. Electrical wiring can enter by a side port 7, Fig. 8. An electrical connection between two sockets 25, 25a, is provided by the closure member 23 formed as a double plug. Three pins 35 to 37 are mounted therein by an insulating substance, e.g. glass, porcelain. A sealing ring 17 only is used in this connection.
Patent GB-853706-A (GB)
Title: Valves for controlling re-heat fuel supply systems for an aircraft gas turbine engine
Inventor: MILLER DAVID THOMAS ANTHONY
IPC: F02C7/232
Filed: 1955-08-11
Abstract: 853,706. Jet propulsion plant. LUCAS (INDUSTRIES) Ltd., J. Nov. 2, 1956 [Aug. 11, 1955], No. 23153/55. Class 110 (3). [Also in Group XXIX] Fuel supply control means for re-heat burners on aircraft gas turbines comprise a plurality of main fuel control valves d<SP>1</SP>, d<SP>2</SP> corresponding to the number of burners and each being opened by fuel or other fluid pressure in a common supply pipe a, an additional fuel or other fluid pressure actuated valve d<SP>x</SP> in association with each of the main valves except one, d<SP>1</SP>, the additional valves controlling fuel flow from a branch pipe a for preliminary filling of the associated burner supply pipe prior to the operation of the associated main valve, and a plurality of independently pilot-operable control-valves j<SP>1</SP>-j<SP>4</SP> for the fluid pressure operable valve. Fuel is supplied past a main valve 3 actuated by a piston 5 controlled by a hinged leak-off valve 12 having a spring follow-up connection with a piston at 8, in response to blower pressure acting on the bellows 13 modified by a pilot controlled cam 23 actuating a leak-off needle valve 18. A further valve 29 controlling the main fuel flow is actuated by a piston 31 under the control of a diaphragm valve 37 in response to the pressure drop across the main valve 3. When the pilot closes a first switch 27 to open a solenoid valve k<SP>1</SP>, fuel pressure is reduced within a bellows f<SP>1</SP> to open a valve d<SP>1</SP> and supply the first re-heat burner at b<SP>1</SP>. At the same time the valve 18 is slightly closed to increase the opening valve 3. To start the second re-heat burner b<SP>2</SP> a second switch 27 is closed together with the slight closure of the valve 18 whereby a solenoid valve j<SP>2</SP> reduces fuel pressure within a bellows f<SP>x</SP> to open a valve d<SP>x</SP> so that fuel at a<SP>x</SP> fills the pipe b<SP>2</SP> up to the second re-heat burner and fuel pressure adjacent to the re-heat burner contained in the duct for the hot propulsion gases acts via pipe z in a bellows u to move a hinged shuttle valve r to disconnect the solenoid valve from the bellows fx and allows it to reduce the pressure in a bellows f<SP>2</SP> whereby the valve d<SP>2</SP> opens and supplies fuel through the second reheat burner from the main conduit a. Further re-heat burners may similarly be brought into action by the pilot.
Patent GB-186242-A (GB)
Title: Improvements in and relating to attachments for saxophones
IPC: G10D9/04
Filed: 1921-08-31
Abstract: 186,242. Alpers, H. Aug. 31, 1921. Saxophones. - An attachment for a saxophone comprises a sound - chamber positioned on the neck and having means controlling the communication between the chamber and the neck. The cylindrical casing 11 constituting the chamber is secured to the neck by a tube 12 extending through the casing, and communication is normally cut off by a spring-controlled slide-valve 14 operated by a rock-shaft provided with a key. At one end of the casing are a small opening surrounded by an internal tube to improve the tone, and a drainage opening 27. By opening the valve when it is desired to play notes above F, the usual notes are raised to higher octaves, and a note as high as Bb may be obtained without difficulty. The keys D, Eb, E, and F also may be dispensed with.
Patent GB-727272-A (GB)
Title: An improved lubricant nipple or lubricant receiving device
IPC: F16N21/02
Filed: 1952-09-15
Abstract: 727,272. Lubricant nipples. TECALEMIT, Inc. Sept. 15, 1952 [Oct. 22, 1951], No. 23166/52. Class 12 (3). A lubricant nipple comprises a hollow head 1 containing an axial pin 8 which at one end 9 forms a valve and at the other end is engaged by one end of a spring 10, the other end of the spring pressing against a spun-over part of the head 1. The pin 9 is formed with protuberances 14 against which the spring bears. The extremity of the valve 9 is substantially flush with the plane of the head of the nipple, so as to prevent accumulation of dirt thereat.
Patent GB-1244556-A (GB)
Title: Display devices for flat articles or the like
Inventor: HOWARD FRED
IPC: A47F7/16
Filed: 1969-05-06
Abstract: 1,244,556 Sample display device. F. HOWARD. May 6, 1969 [May 7, 1968 and Dec. 13, 1968], No. 23170/69. Heading A4T. A portable sample, e. g. of carpet, display device comprises a backing 11 with hinged end 12 and flap 14 of e. g. plastics or leather carrying a plate 25 with raised groove members 26, 27 holding small samples 33 and a hollow clamp member or members 20 e.g. of plastics releasably secured to the end 12 and holding a large sample 34 depending spaced from the small samples. Clamp 20 is formed by spring re-entrant claws 30, 31 with a flat end having slots coincident with slots 17 in the end 12 whereby the splayed ends of handle 16 pass through the slots to releasably secure the clamp 20 and end 12 together. If several clamps are used, they are secured, apart from the handle, by short pegs having splayed ends. In another embodiment a clamp is connected directly to the plate. In use, the large sample and clamp together with the end 12 and flap 14 are folded over to lie flat with the plate for the samples to be compared.