baber/WOPTO huggingface dataset:
Patent GB-580482-A (GB)
Title: Improvements in direction finding systems utilising electromagnetic waves
IPC: G01S13/02
Filed: 1942-04-03
Abstract: 580,482. Wireless direction finding systems. BRITISH THOMSON-HOUSTON CO., Ltd., and MACKENZIE, T. H. April 3, 1942, No. 4508. [Class 40 (v)] [Also in Group XXXVIII] In a direction-finding system in which a directional aerial is oriented towards a target and its orientation is transmitted by electrical variations through a link circuit to an indicator, means other than those causing these variations are provided for producing at least one " error voltage " corresponding in sign and magnitude to an error in the orientation of the aerial, and for introducing this error or correction voltage into the link circuit, so that the indicator more accurately indicates the bearing of the target rather than the orientation of the aerial system. The Figures show a direction-finding system in which a directional transmitting aerial 1 and an aerial 2 for receiving reflected waves arc adjustable in altitude and azimuth, the latter adjustment being transmitted by a device 4 and link circuit 5 to a remote indicator 6. The altitude adjustment may be similarly transmitted to another indicator. The receiving aerial 2 is rotated, so producing, when it is not accurately directed towards the reflecting object, a fluctuating voltage which, by way of a receiver 9, filter 10, amplifier 11 and a rotary switch 7 charges condensers 8 in pairs to voltages representing the directional errors respectively in altitude and azimuth. The indicating device 6 consists of a cathode-ray tube to the deflecting plates of which potentials corresponding to the angular positions of the aerial system are applied by transformers 14, only one of which is shown. The input to these transformers may be obtained by means such as that described in Specification 580,483. The " error voltages " are introduced into the link circuit by connecting the appropriate pair of the condensers 8 through a resistance network 15 to the corresponding pair of deflecting plates, thus correcting the indications produced by the potentials derived from the transformer 14. Specification 500,648, [Group XXXVIII], also is referred to.
Patent GB-1529668-A (GB)
Title: Electrical connector and method of manufacture thereof
IPC: H05K3/30
Filed: 1977-02-03
Abstract: 1529668 Printed circuit assemblies AMP Inc 3 Feb 1977 [8 March 1976] 04532/77 Heading HIR An electrical component assembly comprises a metal, e.g. brass sheet 1 (Fig. 1) formed by etching or stamping to leave holes 2 and plural contact portions 3 interconnected by narrow frangible portions 4, the contacts having therein H-shaped apertures 5 to provide pairs of inwardly directed tongues 6 which may engage male contact members. Sheets 7 of insulant material (Fig. 2) having circular central cut-outs and rectangular cutouts 9, 10 registrable with apertures 5 cut-outs 11 and frangible portions 4, and also matching asymmetrical ends; are assembled in aligned sandwich with sheet 1 and secured together by non-conductive adhesive or by striking out and bending over the peripheral frangible portions 4 to engage cut-outs 11 of sheets 7. The frangible portions 4 aligned with cut-outs 10 are, e.g. punched out to mutually isolate contact portions 3, and components are assembled on either side of the sandwich having male extensile contact members inserted through cut-outs 9 to deflect tongues 6 provided by apertures 5 (Fig. 3, not shown). The assembly may be, e.g. mounted on the casing of a small electric motor whose rotor intersects the central hole; with the stator windings brush housings and connections plugged into the connector sandwich, which also carries plugged in supply leads, switches, and resistors (Fig. 4, not shown).
Patent GB-109583-A (GB)
Title: Engine Starter.
Inventor: BENDIX VINCENT
IPC: F02N15/06
Filed: 1917-03-29
Abstract: 109,583. Bendix, V. March 29, 1917. Turning-gear.-In power turning-gear of the type described in Specification 20,811/14, comprising a threaded pinion 8 mounted on a rotatable screw shaft 6 for longitudinal and rotary movement, and a yielding element such as a spring 10 connecting the shaft with an electric or other motor A, the element 10 holds the shaft normally against longitudinal movement away from the motor A. If in the meshing operation the pinion teeth and the fly-wheel teeth 9<a> meet end to end, the spring 10 yields until the proper register of the teeth is obtained. In the form shown, the driving- head 7, to which one end of the spring 10 is secured, is screwed on a threaded part 6<a> of the screw shaft 6, and is prevented from unscrewing by a notch 6<c> in the end of the screw shaft, into which a portion of the metal of the head 7 is riveted, or by a key and by the action of the stud 13 bearing against the screw-shaft.
Patent GB-433221-A (GB)
Title: Improvements in and relating to automatic timing governor mechanism for magnetos and distributing heads of internal combustion engines
IPC: F02P5/06
Filed: 1934-02-12
Abstract: 433,221. Ignition timing. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and GRIFFITHS, L., 78, Biggin Hall Crescent, Coventry. Feb. 12,1934, No. 4607. [Class 7 (iv)] Centrifugal masses controlling the position of the interrupter cam and distributer rotor are opposed by springs 9, 10 which come into action successively as the speed increases. A spring 15 secured to one of the masses and bearing against the other or against the pin 13 prevents chattering at low speeds. Notches in the masses are engaged by projections on the plate carrying the interrupter cam.
Patent GB-851920-A (GB)
Title: Improvements in feel simulators for aircraft
Inventor: WESTBURY ROY
IPC: B64C13/02
Filed: 1958-02-12
Abstract: 851,920. Aircraft feel simulators. HOBSON Ltd., H. M. May 6, 1959 [Feb. 12, 1958], No. 4633/58. Addition to 734,437. Class 4. An aircraft feel simulator comprises a diaphragm subjected on its two sides to total and static pressures respectively, and applying a force to one end of a valve in a housing communicating with a hydraulic jack coupled to the pilot's control member so that the other end of the valve is subjected to the hydraulic pressure in the jack, the valve being movable to allow liquid to flow to or from the jack as the control member is moved, and being movable by the diaphragm to connect the jack to pressure or exhaust as appropriate to maintain the pressure in the jack as a function of airspeed, and the said function is made approximately the cube of the airspeed by a second diaphragm smaller than the first, also subjected on its two sides to total and static pressure respectively, and connected to the first diaphragm by a tension spring so as to oppose the force exerted on the valve by the first diaphragm. The feel simulator is as described in the parent Specification with reference to Fig. 8 thereof, with the addition of the second diaphragm 11 which, with the first diaphragm 10 divides the chamber 16 into three compartments connected to sources of total pressure Pt and static pressure Ps as shown. A tension spring 12 connects the two diaphragms, and stops 17, 18 are provided for diaphragm 11. The latter is designed so that its effective area decreases as it is deflected from its neutral configuration, to obtain the approximate cube relationship between feel force and airspeed. The effective area may vary in the ratio of 2 : 1 as the airspeed varies in a range ratio of 2 : 1. The simulator may be connected to a rudder control.
Patent GB-1476719-A (GB)
Title: Insecticidal and fungicidal compositions
IPC: A01N53/00
Filed: 1976-02-05
Abstract: 1476719 Insecticidal and fungicidal composition AIRWICK AG 5 Feb 1976 [6 Feb 1975] 04639/76 Heading A5E A liquid composition with combined insecticidal and fungicidal action comprises as active ingredients (a) 0.01-8.3% by wt of at least one insecticidal pyrethium or pyrethroid; (b) 0.005-16.7% by wt n-dodecylguanidine acetate; (c) 0.005-33.3% by wt in total 4-cyclodecyl-2, 6-dimethyl-morpholine and/or N-benzthiazolyl (2)-N' isopropyl urea. The composition is made up in the form of a water-free solution in an organic solvent which solution can be diluted with water or in the form of a stable aqueous colloidal solution. Suitable solvents are aliphatic alcohols of 2-8 C atoms, an aliphatic or cycloaliphatic ketone, an ether alcohol or a mixture of such solvents. Cyclohexanone is a particularly suitable solvent. The preferred pyrethrins are resmethrin, bioresmethrin and tetramethrin. Surface active agents and pyrethrin synergists may also be present. The composition may conveniently be used in aerosol form.
Patent GB-1381294-A (GB)
Title: Photodegradable coating compositions for disposable containers
IPC: C09D133/20
Filed: 1971-02-15
Abstract: 1381294 Coated metal ECOPLASTICS Ltd 14 Feb 1972 [15 Feb 1971] 4682/71 Heading B2E [Also in Division C3]  A. corrodible metal substrate is coated on at least one surface with a resin which is initially water-impermeable but which undergoes photodegradation to a water-permeable condition after exposure to ultra-violet light, the resin containing within the molecule a photochemically active ketone carbonyl group present in the unit in which R is alkyl, cycloalkyl, aryl, alkenyl, or alkaryl having up to 10C, R<SP>1</SP> is hydrogen or alkyl, cycloalkyl, aryl or alkaryl having up to 7C. The substrate may be steel and may be a metal container. The coating may be prepared by -applying an initially water-soluble or susceptible, resin having photochemically active ketone carbonyl groups in its molecular structure from an aqueous coating composition, and then cross-linking the resin to a water-impermeable form. Alternatively the resins may be applied as melts or solutions in non-aqueous solvents. The coating resin may be a copolymer of an ethylenically unsaturated monomer OH 2 =C-X (in which R<SP>2</SP> is hydrogen or an | R<SP>2</SP> alkyl group and X is a functional group such as phenyl, substituted phenyl, carboxylic acid, ester) and a vinyl ketone of formula Suitable ethylenically unsaturated monomers are ethylene, styrene, methyl acrylate, methyl methacrylate, methacrylonitrile, acrylonitrile, butadiene, isoprene, vinyl acetate, vinyl chloride, acrylic acid, methacrylic acid. The vinyl ketone may be methyl vinyl ketone, ethyl vinyl ketone, propyl vinyl ketone, isopropyl vinyl ketone, butyl vinyl ketone, methyl isopropenyl ketone, ethyl isopropenyl ketone, methyl isobutenyl ketone or phenyl vinyl ketone. Alternatively the resin may be a condensation product of a ketone of formula: (where n and m are 1-10, R and R<SP>1</SP> are as defined above, X and Y are each functional groups capable of condensation with other monomers used in the resin and selected from hydroxy, carboxyl, ester, amine, carbonyl halide, isocyanate and epoxy) with a difunctional monomer capable of condensation therewith, e.g. terephthalic, adipic or isophthalic acid to form polyester resins, or dibasic isocyanates to form polyurethanes. The ketone monomer may be a dibasic acid, diamine or a glycol, examples of which are given. The ketone carbonyl group may be introduced into polypropylene by oxidizing in air or oxygen or with an axidizing agent such as chromic acid.
Patent GB-333900-A (GB)
Title: Improved washing brush
IPC: A46B11/06
Filed: 1929-02-12
Abstract: 333,900. ChÚron, (nÚe Faivre), L. R. Nov. 19, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Washing and cleaning carriages. - A device suitable for cleaning vehicles comprises a brush head detachably secured to a hollow body 1 which is provided with a valve 8 and is adapted to be put into communication with a source of water supply, the water passing through apertures in the brush head or through an opening 14, according to the position of the valve. A scrubbing element 3 consisting of a U-shaped wire is detachably secured to the body 1 and is used in conjunction with the spray of water through the opening 14, for the purpose of cleaning parts of a car such as the underside of the wings.
Patent GB-1459978-A (GB)
Title: Game apparatus utilizing a display screen
IPC: A63F9/00
Filed: 1975-02-04
Abstract: 1459978 Table-tennis screen game MARVIN GLASS & ASSOCIATES 4 Feb 1975 [4 March 1974] 4750/75 Heading A6H A game apparatus comprises a display screen and programmed means for moving a light 56 across the screen by controlling vertical and horizontal movement directing means (72. 78 and 74, 76). Light from bulb 70, Fig. 3, passes through lenses 92, 26 onto a vertical-control mirror 72 and thence to a horizontal-control mirror 74. The mirror 72 is oscillated by linkage 128 controlled by a cam 78. A co-axial cam 76 controls linkage 138, 140 to oscillate the mirror 74. A further cam 150 controls linkage 152, 156, to cause a tapper 162 to strike a diaphragm 164 and simulate the noise of a table tennis ball hitting the table or a bat. The cams are not symmetrical so that the paths taken by the ball differ in speed and trajectory. The cams are driven through a slip-clutch by a variable-speed motor 180 controlled by a button 214 which removes a resistor from the motor circuit. The players each have a control button 38, 40. The button 38 when pressed rotates a lever 312 in the direction A through levers and cranks 290-304. The button 40 rotates a similar lever 314 in the direction B. Rotation of the levers permits springs (326) to rotate arms 322, 324 which are pivotted on a pivotted frame 338. The arms 322. 324 are connected to arms 330, 332, Fig. 6, carrying followers 264, 266 contacting two series of cams in the base of a driving gear 206. If the button 38 is depressed too early, the follower 264 will be moved to contact the cam 256 and engage a stop 262 thus stopping the gear 206 and causing the light to stop on the bat. If the button is depressed too late it will contact a stop 258A and again stop the ball. Correct actuation of the button will steer the follower between the stops 258A, 258B. After a correct "stroke" the follower 264 contacts the incurving portion of the cam 256 and the arm 330 is swung to allow the arm 322 to be latched again by the lever 312. The number of cams on the gear 206 is of course dictated by the number of volleys provided for on the cams 76, 78. To restart a game, a serving button 44 is pressed, causing the frame 338 to be pivoted so that the followers 264, 266 can no longer contact stops such as 258A, B although they remain in contact with the cam surfaces 256 and so on.
Patent GB-593493-A (GB)
Title: Density responsive device
IPC: G05D23/01
Filed: 1945-02-26
Abstract: 593,493. Fluid- and pressure-actuated valves. BENDIX AVIATION CORPORATION. Feb. 26, 1945, No. 4802. Convention date, March 1, 1944. [Class 135] [Also in Groups XX and XXVII] In apparatus utilizing a pressure-responsive element and a temperature-responsive element co-ordinated to obtain a response to changes in density, one of the elements has a non- resilient pivotal connection with a lever through which it operates the member to be controlled, and a part moved by the other element has a pivotal connection with the lever providing a fulcrum about which the lever is turned by the first element, the pivotal connection being slidable along the lever by movement of the second element to alter the mechanical advantage of the lever. As shown in Fig. 1, the bellows 10, highly evacuated to render it responsive to pressure changes only, and spring-loaded tomaintain it distended at atmospheric pressure, moves the needle valve 20 in the airmetering passage of a carburetter 15 by rocking the lever 17 about the pivot-pin 34, caused to slide in the slot 35 by movement of the liquid- or liquid and gas-filled temperatureresponsive bellows 27 through the yoke 30 and the bell-crank lever 31. The initial angle between the lever 17 and the bell-crank lever 31, which determines the type of temperature correction, is set by the adjusting-mechanism 37. The response of the device may be proportional to the ratio of pressure to either absolute temperature or the square root of absolute temperature, or to intermediate functions. In a modification (not shown) the pressureresponsive bellows 10 is replaced by a bellows responsive to both temperature and pressure. In this case the lever 17 is initially set at an obtuse angle to the lever 31. In a further modification (not shown) the pivot-pin is moved directly by the free end of the temperature - responsive bellows. Specification 523,895, [Group XXVII], is referred to. The Specification as open to inspection under Sect. 91 comprises also the embodiment shown in Fig. 3 (Cancelled) and Fig. 4 (Cancelled). A bellows 40, responsive to pressure and temperature or to pressure only, is secured to a housing 42 and is surrounded by a bimetallic temperature-responsive element 52. The latter is connected at its upper end to the housing and at its lower end through the link 55 with the pivot-pin 56 sliding in a slot 57 in the arm 58 rigidly secured to the stem of the needle valve 47, which is mounted for axial and rotational movement in a cap 43 at the free end of the bellows. It is stated that movement of the spiral 52 will result in rotation of and consequent raising or lowering of the needle valve 47 as a result of the interaction of the cam surfaces 44 and 45, and that the amount of movement will be determined by the position of the cam member 59 attached to the lower end of the bellows and contacting the link 55 to vary its throw. This subject-matter does not appear in the Specification as accepted.
Patent GB-1531582-A (GB)
Title: Material handling apparatus
IPC: B66C23/42
Filed: 1976-02-06
Abstract: 1531582 Jib cranes CLARK EQUIPMENT CO 6 Feb 1976 [6 Feb 1975] 04819/76 Heading B8H Materials handling apparatus 10 includes a crane superstructure 16, a stowable crane boom assembly 18 and means for stowing and unstowing the boom assembly 18 with respect to the superstructure 16, the means comprising boom supports 55, 56, 57 for carrying the boom assembly 18 when in the stowed position shown in Fig. 1; an auxiliary winch 42; guide means shown as a track 62 for co-operating with rollers 77 on cam carriers 76; foot pins 78 for pivotally mounting the boom assembly 18 on the superstructure at pivot mounts 54 and a boom lift winch 40.  In a method of unstowing the boom assembly 18 it is translated from the stowed position to an intermediate unstowed position, Fig. 2 (not shown), using the auxiliary winch 42 and it is then raised, after engaging the foot pins 78 with the pivot mounts 54, to an inclined working position, Fig. 3, by use of the boom lift winch 40. During the latter part of the initial movement the rollers 77 engage the track 62 which acts to incline the boom assembly slightly downwardly as it is moved forwardly. The boom lift winch 40 is used to return the boom assembly 18 to the stowed position by first lowering the boom assembly 18 to the intermediate unstowed position and then translating it rearwardly.
Patent GB-557451-A (GB)
Title: Improvements in and relating to phenol-aldehyde resinous condensates and compositions
IPC: C08G8/28
Filed: 1942-04-14
Abstract: 557,451. Phenol aldehyde resins. BRITISH THOMSON-HOUSTON CO., Ltd. April 14, 1942, No. 4901. Convention date, April 17, 1941. [Class 2 (iii)] Liquid resinous products which can be mixed without dehydration with fillers, dyes, lubricants &c. to give moulding composition are obtained by reacting lignin, a phenol and formaldehyde initially under acid conditions, in the proportions of 0.5-0.95 mols formaldehyde to 1 mol. of phenol and then adding more formaldehyde to increase the ratio of formaldehyde to at least 1.2-1.5 mols. per mol. phenol the reaction being then continued under alkaline conditions. The product is mixed with an ester gum as dispersion agent and with ammonia or amines to fix the formaldehyde whereupon the fillers &c. are added and the mixture dried. 141 parts 82 per cent. phenol and 164 parts commercial cresol (42-47 per cent. m-cresol) are mixed and heated under reflux; 161 parts lignin are added and heated until dissolved 121 parts formaldehyde are added with sulphuric acid to give a pH of 3.25. The mixture is refluxed for 15 mins. whereupon a further 194 parts of formaldehyde are added and sodium hydrate in sufficient quantity to give a pH of 8.7. Acacia gum is added as dispersing agent ; the solution is neutralized with sulphuric acid and ammonia or amines added to react with free formaldehyde. The resin varnish obtained was made up into a moulding mixture comprising resin varnish 168 parts, wood flour 308 parts, zinc stearate 3.3 parts, lime 6.6 parts, nigrosine 11.9 parts. Coconut flour and asbestos floats may be used as fillers and vegetable wax as lubricant. Specifications 484,248 and 529,628 are referred to.
Patent GB-706282-A (GB)
Title: Improvements in or relating to strip coilers for use with metal strip rolling mills
IPC: B21C47/06
Filed: 1952-02-25
Abstract: 706,282. Winding and reeling. MOELLER & NEUMANN GES. Feb. 25, 1952 [Nov. 15, 1951], No. 4933/52. Class 83 (4) In a strip coiler of the type comprising a ring of driven rollers 3 ... 7, which move outwardly from the central axis as the coil builds up, a single driving roller 2 is arranged within the ring. The roller 2 preferably co-operates with the first roller 3 engaged by the strip 10. The rolls 3 ... 7 are carried by levers 8 having curved guide elements 9 which assist in the formation of the first turn of the coil. Specification 673,580 is referred to.
Patent GB-176634-A (GB)
Title: Improvements in or relating to constructional toys
IPC: A63H19/30
Filed: 1921-02-12
Abstract: 176,634. Mould, W. T., and Whiteley, J. W. Feb. 12, 1921. Rails and track.-Relates to a device for detachably connecting lengths of toy railway lines. An inverted channel-shaped member d is provided with two pairs of arms b, c at each end, the upper arms b being perforated to take a pin l, while the lower arms c serve to steady the track. Rails h are supported by the arms b and locked in position by the pins l the ends l<1> of which are bent to prevent them from slipping out.
Patent GB-686498-A (GB)
Title: Improvements in or relating to process for producing potassium chloride
Inventor: FUCHSMAN CHARLES H
IPC: C01D3/16
Filed: 1951-03-01
Abstract: Potassium chloride is rendered substantially free from lead, which is present in the salt obtained from froth flotation concentration of sylvinite &c., by dissolving the impure chloride in hot water to obtain an unsaturated solution containing, say, 18-20 per cent potassium chloride at the boiling point, and solid-absorbent impurities, removing the latter after adjustment of the pH to 9.5-11 by means of sodium, potassium, calcium or barium hydroxide, sodium carbonate, ammonia &c., removing 35-46 per cent of the water by boiling, and crystallizing.  The mother liquor from this operation may be evaporated to 70-80 per cent of its original weight, and further crystals collected.  The absorbent impurity is clay present in the ore, but additional absorbent, e.g. Fuller's earth, paper pulp, magnesium silicate may be added.