baber/WOPTO huggingface dataset:
Patent GB-1105418-A (GB)
Title: Improvements in or relating to devices for the protection of apparatus against flooding
Inventor: CARSLAW CHARLES HENDERSON
IPC: F04D15/00
Filed: 1966-02-24
Abstract: 1,105,418. Machinery protectors. DRYSDALE & CO. Ltd. 2 Jan., 1967 [24 Feb., 1966], No. 8151/66. Heading F2J. Apparatus for protecting machinery liable to flooding - comprises an air-tight casing enclosing the machinery, such as a motor 1 and pump 2, and a drainage space 3 connected to an air-bell 6 mounted at a lower level than the drainage space. A duct 7 leads from the bottom of the space 3 to the top of the air-bell 6 and a duct 8 connects the top of the space 3 with the air-bell 6. In a modification, the motor 1 and pump 2 are disposed with their axes horizontal, and in a further modification the motor 1 is disposed beneath the pump 2, a further duct being arranged between the bottom of the motor 1 and the top of the air-bell 6. In a further modification, shown in Fig. 3, an air-bell 6 is attached directly to a casing 4 enclosing a drainage space 3 of a horizontal motor-driven pump, a large opening 9 connecting the space 3 to the top of the air-bell 6.
Patent GB-1507954-A (GB)
Title: Carburising heat treatments
IPC: C21D1/74
Filed: 1976-03-02
Abstract: 1507954 Carburizing IPSEN INDUSTRIES INTERNATIONAL GmbH 2 March 1976 [11 March 1975] 08234/76 Headings C7D and C7U The carburization of ferrous articles by gaseous reagents is carried out by heating the workpiece in an atmosphere of cracked ammonia, fed to the furnace immediately after decomposition, as methane-free hydrocarbon and methane, resulting in part from the dissociation of the methane-free hydrocarbon and in part from the reaction of the cracked ammonia and carbon content of the steel article. The proportion of methane present, and hence the control of the carburization, is controlled by varying either or both the amount of cracked ammonia or the methane-free hydrocarbon fed into the furnace atmosphere. The use of cracked ammonia also permits the surface nitriding of the article.
Patent GB-153227-A (GB)
Title: Improvements in nut locks
IPC: F16B39/36
Filed: 1920-03-19
Abstract: 153,227. Snow, C. S. H. March 19, 1920. Locking nuts.-A nut a is formed with a split and externally tapered extension g to receive a locking- nut e, which is retained by a burred flange f on the extension g. The screwthread d on the parts e, g may be dispensed with, the tapered surfaces being relied on to lock the nut.
Patent GB-1110644-A (GB)
Title: Urea derivative
Inventor: GOLIASCH KARL
IPC: A01N47/30
Filed: 1967-02-22
Abstract: A novel N - phenyl - N1 - dimethyl urea <FORM:1110644/C2/1> is obtained when (a) 4-dimethyl-sulphonamidophenyl isocyanate is reacted with dimethylamine in a molar ratio of about 1:1; or (b) 4-chlorosulphonyl-phenyl isocyanate is reacted with dimethylamine in the presence of an acid-binding agent in a molar ratio of about 1:2:1, or (e) 4-dimethyl-sulphonamido-aniline is reacted with dimethyl-carbamic acid chloride by itself or in the presence of an acid-binding agent; or (d) N-(4-sulphonamido-phenyl)-N1-dimethyl urea is reacted with a methylating agent; or (e) N-phenyl-N1-dimethyl urea is reacted with dimethyl sulphamic acid chloride in the presence of a Friedel-Crafts catalyst. The urea derivative is used as a herbicide. Starting material for reaction (a) is prepared by reacting 4 - dimethyl - sulphonamido - aniline with phosgene, giving 4-dimethyl-sulphonamido-phenyl isocyanate.ALSO:Herbicidal compositions comprise an N-phenyl-N\sv-dimethyl urea of formula, <FORM:1110644/A5-A6/1> They can be used to combat weeds in crops of maize, flax, peas, cotton, carrots and anions.  Application can be carried out before or after the emergence of the weeds to be destroyed.
Patent GB-828100-A (GB)
Title: Improvements in or relating to the manufacture of cases for disc-shaped articles
IPC: B65D85/57
Filed: 1957-03-14
Abstract: 828,100 Paper and like bags. CHADWICK & SONS Ltd., J., and NIELD, L. B. March 14, 1958 [March 14, 1957], No. 8390/57. Class 94(2). [Also in Group XV] A sheet material bag comprises an arcuate tongue 13 which has been folded in to form the bottom of the bag along a central portion 13a of the width, the remaining portion of the width being held in contact by adhesive only. The bag blank is formed from a continuous web which is transversely cut as shown in Fig. 1 and then folded upon itself to form a tube, the edge and bottom being pasted. Alternatively, the bags may be formed from two webs pasted together. The tongue formed at the bottom of one bag blank leaves a thumb recess at the top of the next bag blank. The bag may be used for carrying disc-shaped articles such as gramaphone records or circular saw blades
Patent GB-558163-A (GB)
Title: Improvements in or relating to electrical relaxation oscillators
IPC: H03K6/02
Filed: 1942-06-19
Abstract: 558,163. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and AMBROSE, D. M. June 19, 1942, No. 8438. [Class 40 (v)] The curvature of the scanning or slow stroke of the saw-tooth wave generated by a relaxation oscillator is compensated by the provision of a resistance potentiometer in the coupling between the generating and amplifying stages, the potentiometer including a thermistor, or thermally sensitive resistance element, adapted to change its resistance progressively in the same direction during each scanning stroke. The Figure shows a gas discharge tube V1 arranged to discharge condenser C1 charged through resistance R1. The voltage applied to the amplifier V2 is modified by the potentiometer formed by resistance R5 and thermistor T so as to compensate the curvature due to the decrease in the charging rate of condenser C1 as this becomes charged. As shown, a thermistor with a positive temperature co-efficient is used but a thermistor with a negative temperature coefficient may be used if interchanged with the resistance R5. The invention is also applicable to other forms of relaxation oscilators.
Patent GB-313989-A (GB)
Title: Improvements in or relating to coin-freed vending machines
IPC: G07F11/04
Filed: 1928-03-20
Abstract: 313,989. Thrissell Engineering Co., Ltd., (formerly Brecknell, Munro, & Rogers, Ltd.), and Dolman, H. J. March 20, 1928. Delivery of articles sfored in piles; casings. - Cigarettes are delivered by rollers 8, 9, Fig. 2, from magazines 13, 14 arranged along the sloping sides of a triangular casing, comprising a small portable apparatus, the base 1 of which is formed as an ash tray. The magazines are held in position by lugs 16, which assist also in enclosing the rollers, and by a slidable cap 15 secured by a lock. The rollers, which have grooves 12 to receive a cigarette, are operated by handles 10, Fig. 3, and have the portions 21, 22 between the cigarette-carrying portions made of elongated form. in cross-section to actuate levers 25, 26 for imparting movement to a reciprocable coin controlled bar 28, and also a lever 47 which prevents both rollers from being turned simultaneously. Vertical sliding movement of the bar 28 is normally prevented by a lever 44 pivoted thereto at 31, a nose 33 on the lever engaging a fixed stop 46 on an end wall 5 of the casing. Coin action, with stationary coin forming abutment.-A coin is inserted through a slot 37 in the cap 15 and enters a passage formed by a central plate 7 and a plate 34 spaced therefrom. It rests between, the side 49 of the bar 28 and a pin 41 carried by a lever 39 controlled by a spring 43. When a roller is rotated, a lever 25 or 26 depresses the bar 28 and a pin 45 on the lever 44 engages the coin so that the lever 44 is turned aside, against the action of a spring 32, to clear the abutment 46. Coin-discharging mechanism. -- The pin 45 finally forces the coin past the pin 41 on the lever 39 which is pressed back in opposition to the spring 43.
Patent GB-606661-A (GB)
Title: Improvements in or relating to production of resins from phenolic mixtures
Inventor: SENTZ ROGER
IPC: C08G8/28
Filed: 1945-04-05
Abstract: Resins are prepared from a material containing a mixture of phenols, e.g. a tar oil, by reacting with a lower aliphatic aldehyde or a substance producing such an aldehyde under the conditions of the reaction, e.g. para formaldehyde, trioxymethylene or hexamethylenetetramine in presence of a phenol-aldehyde condensing agent under mild condensation conditions until only the most reactive phenolic component or components in said material has or have been combined with said aldehyde into an insoluble resin; the resin thus produced is separated from the unreacted mixture; the unreacted mixture is caused to react with an aldehyde as above in presence of a phenolaldehyde condensation agent under more severe conditions until only the most reactive phenolic component or components in said mixture has or have been combined with the aldehyde into a second, insoluble resin, and the sequence of resin separation step and reaction step is proceeded with to the desired degree of exhaustion. Reaction conditions to be varied to increase the severity of the condensation conditions comprise the concentration of aldehyde relative to the phenolic component, the temperature, the time and the pressure.  Tar oils specified are those from coal, wood, lignite and peat.  Examples describe the condensation of coal tar oils with increasing concentrations of formalin relative to phenolic content in alkaline and in acid solutions.
Patent GB-813918-A (GB)
Title: A suspension ring for brassieres or other garments
Inventor: HIRD HAROLD
IPC: A44B11/18
Filed: 1956-03-19
Abstract: 813,918. Buckles, shoulder straps. STEELS & BUSKS Ltd. Dec. 24, 1956 [March 19, 1956], No. 8487/56. Classes 43 and 141. A ring 1 made of deformable material such as plastic is moulded with an integral cross bar 6 flush with the ring. One section of a shoulder strap extends from the back of the garment and is permanently looped round the upper ends 1<SP>1</SP>, 2<SP>1</SP> of two rings 1, 2. The free end 5<SP>1</SP> of the other section 5 extending from the front of the garment is passed through the rings beneath the cross bars 6, 7 of the rings and round lower part 1<SP>11</SP> of the ring 1 and over the lower part 2<SP>11</SP> of the ring 2.
Patent GB-1531674-A (GB)
Title: Microwave ice detector
IPC: B64D15/20
Filed: 1977-03-01
Abstract: 1531674 Aircraft icing detectors SYSTEM DEVELOPMENT CORP 1 March 1977 [1 April 1976] 08493/77 Heading G1X Aircraft ice detection apparatus comprises a micro-wave source 12, a surface waveguide coupler 14, a dielectric layer 16 forming a permanent waveguide on the surface 18 susceptible to icing and reflecting means 20, so that when ice collects on the layer 16, the ice and layer act as a composite waveguide, variations on the amount of ice causing variations in the amount of reflected energy. The waveguide coupler may consist of a tube 30 coupled to e.g. a dual directional coupler 22 and having a coupling pin 36 lying on the surface of the layer 16. The device may also control a source of micro-wave energy or other means for deicing purposes.
Patent GB-1382907-A (GB)
Title: Servo system and magnetic disk memory incorporating such servo system
IPC: G11B5/596
Filed: 1972-02-24
Abstract: 1382907 Automatic control of position INTERNATIONAL BUSINESS MACHINES CORP 24 Feb 1972 [1 April 1971] 8532/72 Heading G3R The radial position of a sensor is controlled with respect to a recorded circular servo-track by a system in response to the combination of a position error signal and a separately derived signal representative of the rate of change of the position error and the frequency at which it changes. In the embodiment the error between the position of a transducer 10 and a selected one of radially spaced tracks on a magnetic disc 3 is continuously detected by known means 11 and the velocity of the transducer (due, e.g. to following an eccentric track) is measured by 2, 12, and the signal "compensated" at 13 before being added to the position error signal. The combined signal is further "compensated" at 15 to control the positioning servo-mechanism 1. The compensators vary the phase and magnitude of the respective signals, 13 acting as a low pass filter and 15 as a lead/lag network. Their construction is not disclosed but formulae are given which specify their transfer functions.
Patent GB-598699-A (GB)
Title: Improvements in or relating to power plants, particularly for aircraft
IPC: B64D27/00
Filed: 1946-03-19
Abstract: 598,699. Toothed gearing. BRISTOL AEROPLANE CO., Ltd., and MARCHANT, F. C. I. March 19, 1946, No. 8560. [Class 80(i)] [Also in Groups XXVI, XXVII and XXXIII] A power plant comprises two or more engines, a reduction gearing between each engine and a common shaft, and a further reduction gearing between the shaft and each of two oppositelyrotating shafts. The invention is described as applied to an aeroplane, but it may be applied to boats, land vehicles, such as locomotives or stationary installations. Each engine is buried within the wing 7 and comprises a gas turbine 11 having two independently rotating rotors, one of which drives a compressor 9, the other driving a shaft 13. Air enters through intakes 8 and the exhaust gases leave by way of jet pipes 12. Each shaft 13 drives the common shaft 16 through pinion 18, gearwheel 19 and idler gear 20. Pinion 18 and idler 20 are each formed as two separate gears for convenience in construction. Each pinion 18 is connected to its shaft 13 by means of a clutch 22 one element of which is fast with the pinion, the other element comprising a sleeve 23 splined to the shaft and axially movable by a hydraulic ram 25. The clutch may be controlled either manually or automatically in accordance with, say, the speed or delivery pressure of the compressor. The shaft 16 drives five layshafts 31 through a pinion 30 and gears 32. Each layshaft carries a pinion 33 and a gearwheel 35, which mesh respectively with gearwheels 34 and 36 carried by co-axial propeller shafts 14a, 14b. Shaft 16 is flexibly connected at each end by means of a ball-and-socket joint 40 and a splined connection 39. Auxiliaries are driven through gearing 41. The gas turbine power units may be replaced by reciprocating internal combustion engines. The Provisional Specification describes a modification of the final reduction gearing having six layshafts: the input shaft has two gears, each of which meshes with gears on three of the layshafts. Specification 598,698, [Group XXVI], is referred to.
Patent GB-250747-A (GB)
Title: Improvements relating to high frequency electric signalling
IPC: H04B1/56
Filed: 1925-03-31
Abstract: 250,747. Braendle, E. W., and Metropolitan-Vickers Electrical Co., Ltd. March 31, 1925. Duplex signalling; wired-wireless systems. - A duplex high-frequency signalling system comprises a valve transmitter and an adjacent valve receiver with their plate circuits supplied by an A.C. source in opposite phase, so that the transmitter is operative during one half-cycle only, and the receiver during the other. The operative half-cycles of the distant transmitter coincide with those of the home receiver, and the home transmitter with the distant receiver. As shown in the Figure, a power distribution line 1, 2 energized by an alternator 3, is utilized for conveying the high-frequency signals, the transmitting valves 4, 20 and the receiving valves 10, 21 being electrostatically coupled to the line 2 at 8, 12 - - The plate potentials of the valves are supplied by the line 1, 2 in such a way that the valves 4, 21 have their plates positive during the same halfcycles, whilst during the other half-cycles, the valves 10, 20 have their plates positive. When the key of the valve 4 is depressed, the valve oscillates intermittently, and the oscillations trig the distant receiver 21 into oscillation and give an indication by means of a relay in the plate circuit. The home receiver 10 is not affected, as its plate is negative during the intermittent oscillatory periods of the valve 4. If a wireless transmission system is employed, two separate A.C. sources such as 3 are employed, and are kept in step by a synchronizing carrier wave. Transformers are preferably employed between the line 1, 2 and the plate circuits, and the filaments may also be energized from the line 1, 2.
Patent GB-129953-A (GB)
Title: Weight Indicator for Weighing Scales.
Inventor: BRETTELL FREDERICK GILBERT
IPC: G01G23/32
Filed: 1919-04-05
Abstract: 129,953. Brettell, F. G., (General Automatic Scale Co.). April 5, 1919. Indicating-mechanism; pendulum-weight apparatus.-The indicating mechanism of a weighing-machine comprises means for displaying on a ground-glass screen an enlargement of weight graduations marked upon a member attached to a pendulum-lever. The beam 11 of an ordinary weighing-machine is coupled by a rod 30, disk 36, tape 70, and eccentric 56 to a pendulum lever 64 which carries with it an arm 67 and a graduated scale 69. A stay 39 and a dash-pot 44 steady the vibrations. The pendulum lever 64 and the eccentric 56 are carried on a sleeve 55, Fig. 5, mounted on ball bearings 50 upon a shaft 51. The ends of the shaft are also mounted on ball bearings so as to minimize friction if the bearings 50 tend to stick. A hollow counter-poise 32 secured to the rod 30 serves as a support for loose weights if the pendulum lever mechanism becomes inoperative. The graduated scale 69 is made of transparent material and is situated between a condensing lens 21 and a pair of projecting lenses 24 so that the light from an electric lamp 15 produces an enlarged image of the graduations upon a translucent screen 27. A fixed pointer 28 casts a shadow on the screen opposite the graduations. In a modification, Fig. 9, the graduated scale 69 is in the form of a reflecting surface, and the lamp and the lenses are arranged in front. The end of the beam 11, Fig. 2. is clamped and unclamped by means of a handle 76 which also switches the electric lamp 15 on and off.
Patent GB-1201994-A (GB)
Title: Process for the manufacture of mouldings and coatings having non-tacky surfaces, for compositions based on organopolysiloxane resins
IPC: C08K5/544
Filed: 1968-02-22
Abstract: 1,201,994. Coating. WACKER - CHEMIE G.m.b.H. 22 Feb., 1968 [15 Nov., 1967] No. 8632/68. Heading B2E. [Also in Division C3] Mouldings and coatings of compositions based on organopolysiloxanes of the average unit formula R n SiO 4-n , wherein each R is a monovalent optionally substituted hydrocarbon radical, at least one R per 10 Si atoms being olefinically unsaturated and n has an average value of 0.9-2.4, and an organic peroxy compound, are provided with non-tacky surfaces by adding an organosilicon compound containing Si-N groups to the composition or applying such a compound after cure to at least that part of the surface which has been exposed to air during cure. Up to 50% of the Si to Si linkages in the polysiloxane may be replaced by, e.g. p-phenylene radicals. Suitable Si-N compounds are aminosilanes and silazanes obtained from organo-halosilanes and NH 3  or a primary or secondary amine, e.g. from Me Si C1 3 , Ph Si C1 3 , Me 2  Si C1 2 , Me 3  Si Cl, Me Ph Si C1 2 , Ph 2  Si C1 2 , Vi Si C1 3 , or Vi Me Si C1 2  with Bu 2  NH, H 2  N CH 2  CH 2  NH 2 , C 6  H 11  NH 2 , Ph NH 2 , Et NH 2 , Me 2  NH or diethylene triamine. If incorporated in the polysiloxane composition 0.2-5 wt. % of the Si-N compound is required relative to the composition. Preferably it is applied to the surface, in an organic solvent, e.g. acetone. Optionally the moulding or coating composition may contain, e.g. 35-900 wt. % (based on polysiloxane) of a filler or reinforcing agent and 5-20 wt. % of a purely organic unsaturated compound (based on polysiloxane plus compound), when a further, rapid, free-radical-forming agent is added, e.g. t-butyl peroctoate or benzoyl peroxide. In EXAMPLES mouldings are prepared from polysiloxanes containing Me 2 Si O, Ph 2  Si O, Me Vi Si O and Me 3  Si O<SP>1</SP>/ 2  units and optionally also Me Ph Si O, Ph Si O<SP>3</SP>/ 2 , Me Si O<SP>3</SP>/ 2  and Vi Si O<SP>3</SP>/ 2  units, with dicumyl peroxide and optionally zirconium silicate. The airexposed cured surfaces are coated with acetone solutions of methyl tris-(n-butylamino or cyclohexylamino) silane (prepared from Me Si C1 3  and C 4  H 9  NH 2  or C 6  H 11  NH 2 ) or of phenyldiethylsilazanes (prepared from Ph Si C1 3  and Et 2  NH). In Example 4 dimethylbis (n-butylamino) silane is added to the composition before moulding.
Patent GB-705342-A (GB)
Title: Alternating current ringers
IPC: G10K1/062
Filed: 1952-04-04
Abstract: 705,342. Oscillating motors. STANDARD TELEPHONES & CABLES, Ltd. April 4, 1952 [April 12, 1951], No. 8688/52. Class 35. [Also in Group XXXVIII] The motor of a polarized A.C. bell comprises a permanent bar magnet 1 having one pole adjacent the central pivot 4 of the armature 3 and the other magnetically connected to both ends of the armature 3, and a coil 6 connected to an A.C. supply and creating an alternating flux in a magnetic circuit having pole pieces 15, 16 adjacent the ends of the armature. In a modification, the pole pieces 15, 16 also serve as part of the magnetic circuit of the magnet 1.
Patent GB-680757-A (GB)
Title: Improvements relating to ditch digging or cleaning and like implements
IPC: E02F5/02
Filed: 1951-04-13
Abstract: 680,757. Sledges &c. BRISCOE, E. V. April 13, 1951 [June 24, 1950], No. 8706/51. Class 108 (i). A ditching implement has pivoted to the rear part of the frame 1 a sled 14 which can be maintained in contact with the ground by a hydraulic cylinder 21 to stabilize the rear end of the vehicle and prevent it bogging down or skewing. The runners 16 preferably of angle-iron, which support the sled-plate 15, engage the ground to cause the vehicle to track properly in the ditch.
Patent GB-747295-A (GB)
Title: Bore gauge
IPC: G01B5/08
Filed: 1954-03-25
Abstract: 747,295. Bore gauges. HOOG, H. March 25, 1954 [May 11, 1953], No. 8766/54. Class 106(2). Each end of a handle 1 has recesses in which are mounted for sliding movement a jaw 7 of T- shape co-operating with a jaw 8 of L-shape, the jaws being adjustable relatively to each other by manual operation of a rotatable member 4<SP>1</SP> engaging both jaws simultaneously and adapted to be locked in adjusted position. A cover-plate 2 detachably mounted on the handle carries a rotatable disc 41 with two pins 5<SP>1</SP> engaging grooves 6 in the jaws. To lock the jaws in set position a screw is provided to press the jaws together. The pins 5<SP>1</SP> may be replaced by projections in the plane of the disc engaging recesses in the jaws which include arcuate portions. In a modification the jaws are provided with rack teeth and the disc comprises a toothed wheel engaging both racks and operable by a knurled head.