baber/WOPTO huggingface dataset:
Patent GB-565379-A (GB)
Title: Radio landing guide system for aircraft
IPC: G01S19/15
Filed: 1943-04-30
Abstract: 565,379. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. April 30, 1943, No. 6855. Convention date, May 11, 1942. [Class 40 (v)] A radio glide-path system of the overlapping- beam type comprises means for producing (1) oppositely phased radiation lobes 25, Fig. 2, with a null between the lobes at the desired landing angle, and (2) a lobe 35, Fig. 3, aligned with the null, and overlapping the lobes 25 ; the superimposition of these lobes 25, 35 produces an overlapping beam 45, 46, Fig. 4, defining the desired landing course. In the arrangement shown in Fig. 1, lobes 25 are produced by side-band energy only, whilst lobe 35 has both side-bands and carrier frequency. Carrier frequency from 10 modulated at 150 cycles at 11, and at 90 cycles at 12, is applied across the diagonals of a bridge network 13, 14, such that the output over circuit 15 contains no carrier and the 90 and 150 sidebands have their phase displaced by 180 degrees, these side-bands being fed to antennµ 17, 18 which have such a phase relation that the energization of 17 may be regarded as - 90 and + 150, whereas that of 18 is +90 and - 150. The output over circuit 16 is fed to antenna 20 and contains carrier and side-bands. The antennµ 17, 18 produce the phase displaced lobes 25, Fig. 2, and antenna 20, the lobe 35, Fig. 3, the overlapping beams 45, 46, Fig. 4, being characterized by 150 and 90 cycle modulation respectively. To prevent false indications due to undesired lobes, an additional vertically-directive antenna 22 is supplied with energy modulated at 150 cycles which predominates over any false lobes of 90 cycles. In a modified system, Fig. 6 (not shown), instead of using continuous modulation as in Fig. 1, a keying device reverses the phase of the energy fed to the central antenna with respect to that fed to the upper and lower antennµ. The preferred type of antenna unit is that described in Specification 538,036. Specification 491,359 also is referred to.
Patent GB-139821-A (GB)
Title: Improvements in jointing elements for building structures
IPC: E04B1/24
Filed: 1920-03-06
Abstract: 139,821. Soc. des Ateliers de Constructions de L'Ouest, (Assignees of Lescop, P. E. H.). Oct. 25, 1918, [Convention date]. Rod couplings.-Trussed beams and girders for temporary structures are built up of tubular and profiled members connected by special junction pieces which comprise a main portion with sockets and a co-acting smaller portion or clamp. The main portion, Figs. 1 and 3, has a central tubular part 1, a socket 11, and a perforated lower part 3, 7. A profiled bar is clamped between the main portion and a separate piece 5<1>, Fig. 7, by pins 8 and a bolt with cross-pin 12. Ties are attached to bosses 9. Fig. 8 shows another form of main junction portion, and Fig. 13 shows the co-acting clamp. This form has a screwed socket 19, a central tubular part 13, a socket 25, tie bosses 22, bolt holes 18, and rivet or bolt holes 16. One profiled bar is clamped to the side 14 of the junction piece before the parts are assembled, and a second bar is afterwards attached by bolts through the holes 18.
Patent GB-851552-A (GB)
Title: Process for extracting gold and silver from their ores
IPC: C22B11/08
Filed: 1958-03-04
Abstract: Metallic gold and silver present in ores are extracted in an aqueous solution comprising an alkyl or aralkyl a -hydroxy nitrile with which the metals form complexes.  Specified nitriles are lactonitrile, a -hydroxy-iso-butyronitrile, glycolonitrile and mandelonitrile.  An inorganic cyanide may also be present in the extracting solution.ALSO:Silver and gold are extracted from ores by grinding the ore, forming a pulp thereof with an aqueous solution comprising an alkyl or aralkyl a -hydroxynitrile and digesting the pulp to form a solution from which the metal can be recovered.  Specified nitriles are lactonitrile, a -hydroxy-iso-butyronitrile, glycolonitrile and mandelonitrile.  If desired an inorganic cyanide may also be present in the solution used for digestion. The pH of the pulp may be adjusted by means of lime, e.g. to about 11 or may be allowed to remain at about 6.
Patent GB-124093-A (GB)
Title: Improvements in or relating to Aeroplane Structural Elements.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B64C3/26
Filed: 1918-04-24
Abstract: 124,093. Jackson, W. J. Mellersh-. (American Rubber Co.). April 24, 1918. Floats for aerial machines.-Structural elements for aeroplanes such as wings, spars, pontoons, &c. comprise sheets of non-plastic material supported on a. frame and having a coating of hard rubber vulcanized thereto, the outer surface of the rubber having a smooth surface obtained by vulcanizing in contact with metal foil. The non-plastic material may be of textile fibres or wires either separate or woven into fabric or gauze. The rubber may be applied to either or both surfaces.
Patent GB-307290-A (GB)
Title: Improvements in or relating to lacquers, coating compositions and the like, and articles coated therewith
IPC: C09D101/12
Filed: 1929-03-04
Abstract: 307,290. British Celanese, Ltd., (Assignees of Moss, W. H., and White, B. B.). March 3, 1928, [Convention date]. Furfural-amine resins.-Synthetic resins produced from an aromatic amine and furfural are added to lacquers &c. containing derivatives of cellulose, and a volatile solvent. There may also be present natural and/or semi-synthetic resins, plastifiers and suitable pigments or dyes. The synthetic resin may be prepared by refluxing aniline and furfural in equimolecular proportions at 170‹ C., without a catalyst, or with acid or alkaline catalyst. Other suitable aromatic amines are toluidine, xylidine, naphthylamine, or substituted amines such as nitraniline A black, shiny resin, which is hard and brittle at 25‹ C., is formed on cooling. It may be purified by steam or ordinary distillation. It may be mixed with other resins in any suitable manner, e.g. with a phenol aldehyde resin, preferably phenol formaldehyde resin prepared by means of an acid catalyst. These mixtures are especially useful where a resin fast to sunlight or ultraviolet light is required.
Patent GB-280090-A (GB)
Title: Improved explosionproof fitting for electric glow-lamps
IPC: F21V23/04
Filed: 1927-03-12
Abstract: 280,090. Beckmann, J. March 12, 1927. Switch mechanism interlocking with lids.-In an electric lamp fitting provided with a hinged - cover 8, a locking bolt or slide 1 is pressed by a spring 4 so that a slot 5 in the free end of the slide straddles a flattened portion of the axle 6 of an internal switch and prevents a ball 7 being switched on when the door 8 is opened. The cover 8 carries a tappet 11 provided with an openended key-hole slot 9, 10 so that when the cover is being closed the slide 1 is pushed back and the switch axle 6 enters the round portion 10 of the key-hole slot to allow it to be turned to secure the cover 8 in the closed position and to switch on the bulb 7. The pivot 13 of the hinged cover 8 is provided with a fixed cam-disc 14 which bears against a spring-pressed bolt 15 having an abutment 16 which pushes against a spring- pressed movable rod 17 the outer end of which has a pawl 18 adapted to enter a slot 20 in the slide 1 when the cover 8 is opened, so that it is impossible to operate the slide 1 from the outside.
Patent GB-345073-A (GB)
Title: Improvements in and relating to axle bearings, in particular for rail vehicles, and processes for lubricating the same
IPC: B61F17/20
Filed: 1930-03-03
Abstract: 345,073. Lubricating axle bearings. MATTHEWS, E. F., Elm Cottage, Watford Road, Wembley, Middlesex. March 3, 1930, No. 7010. [Classes 12 (ii) and 12 (iii).] Lubricant thrown up from a well 7 in an axle box by a blade 6 secured to the axle 1 is directed by grooves 8 and lateral recesses 10 into an arcuate groove 9 in the closed brass 2, and flows through passages 11 leading obliquely from the ends of the groove 9 and formed solely in the lower part of the brass into the wedge-like space 12 between the said lower part and the journal.
Patent GB-525933-A (GB)
Title: Improvements in or relating to engine bonnets of motor vehicles
IPC: E05B83/24
Filed: 1939-03-03
Abstract: 525,933. Fastenings. BAYERISCHE MOTOREN WERKE AKT.-GES. March 3, 1939, No. 7022. Convention date, March 9, 1938. [Class 44] [Also in Group XXXI] A motor vehicle bonnet flap or lid 2, hinged at its rear end transversely to the vehicle, is spring biassed so as to be slightly lifted when unfastened and is held in the closed position by a transversely-pivoted spring-controlled catch or catches adapted to be released by operating means controlled from the interior of the vehicle. As shown, the lid is held in the closed position by projections 9 on arms 7, 8 on a transverse shaft 12 under the tension of a spring 10 connecting a third arm 11 on the shaft to the radiator casing 16, an extension of the arm 7 being connected by a Bowden cable or the like 1 to a handle 13 on the dashboard. When the catches are released the lid is slightly lifted by a spring incorporated in the rear transverse hinge. The upper surfaces of the projections 9 are inclined so that the catches yield and snap into engagement when the lid is closed by downward pressure.
Patent GB-281519-A (GB)
Title: Steering and shock-absorbing means for use on vehicles
IPC: B60G11/22
Filed: 1927-03-14
Abstract: 281,519. Martin, J. V. March 14, 1927. Springs, arrangement of.-Relates to a spring suspension for a steering wheel of a road vehicle of the kind in which a stub axle is mounted to turn and slide on a vertical cylindrical guide carried in the forked end of a bracket or main axle, resilient means being interposed between the stub-axle and bracket or main-axle. The static load of the vehicle is supported by rubber cords arranged in tension between the stub-axle and bracket or main axle, and shocks due to excessive vibration are cushioned by rubber bumper rings surrounding the guide. The stub-axle 9 and the lower arm 3<a> of the forked bracket 3 are formed with arms 10, 15 respectively to carry the rubber cords 16, the rubber bumpers 11, 12 being arranged at the upper and lower ends of the cylindrical guide 5 mounted in the bracket 3. The guide is protected by bellows 7, 13 connected in an oil-tight manner to the arms of the bracket 3 and to the stub-axle 9. The suspension arrangement tends to restore the wheel to a straight course after deflection for steering purposes. Rubber cords to take the recoil may be carried between the top of the bracket 3 and a hole 25 in the stub-axle 9. The arm 10 may be extended at 10<a> to form the steering arm, or the usual separate arm 23 may be provided.
Patent GB-1179973-A (GB)
Title: Electromechanical Inductive Transducer.
Inventor: BARTUNEK ZDENEK
IPC: H01F29/10
Filed: 1968-02-13
Abstract: 1,179,973. Electrical transducers. 
STAV PRO VYZKUM MOTOROVYCH VOZIDEL. Feb.13, 1968 [Feb. 16, 1967], No. 7107/68. Heading G1N. An inductive transducer comprises two coils 7, 8 mounted along a common axis on respective non-magnetic formers 9, 10 secured at their outer ends to a housing 1 and a core 5, or a third coil, carried by diaphragms 2, 3, or springs, and a pushrod 4 which moves in response to changes in a non-electric variable such as tensile or compressive force, differential pressure, relative elongation and acceleration. Such a construction reduces errors due to non-uniform temperature variations.
Patent GB-828525-A (GB)
Title: Improvements in and relating to electrical control systems
Inventor: WORTHY WILLIAM DIGBY
IPC: G06G7/30
Filed: 1955-03-10
Abstract: 828,525. Analogue computors. ENGLISH ELECTRIC CO. Ltd. March 8, 1956 [March 10, 1955], No. 7114/55. Drawings to Specification. Class 37. The invention relates to a programme control system for a machine tool using potentiometer interpolators as described in Specifications 828,527 and 828,528 and Figs; 6, 7, 8 of this Specification (not shown). In these interpolators the potentiometer is energized according to two successive key values (derived, e.g. from a punched tape), and a controlled current is passed through the tapping point (according to preceding and succeeding key values) to reduce discontinuities in the output signal following the change in key values. According to this invention the above interpolators are modified to introduce deliberate discontinuities, e.g. to trace a linear curve, or right-angle, Figs. 10a and 10b (not shown), or when the speed of the cutting tool varies relative to the spacing of the key points as at starting or on intricate parts of the contour. The modification comprises a three-way switching device controlled by an extra track on the programme-tape to alter the current injected into the potentiometer tapping from (i) its required value for a continuous curve, to (ii) zero, or (iii) double the required value, to produce the desired discontinuity. The Provisional Specification gives a dissertation on the use of rectangular and polar coordinates for deriving key values, Figs. 1-5 (not shown), and also discloses with reference to Fig. 9 (not shown), a system for e.g. long distance traverse, in which the accuracy of the control voltage may be reduced, by dividing the traverse into, e.g. tenths of an inch so that the control voltage merely represents a distance over a basic distance composed of multiplies of tenths of an inch. Special signals are provided from the tape each time interpolation commences within an adjacent " tenth ".
Patent GB-434182-A (GB)
Title: Improvements in devices for controlling the supply of pressure media to reservoirs
IPC: B60T15/50
Filed: 1935-03-07
Abstract: 434,182. Safety-valves. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. March 7, 1935, No. 7123. Convention date, March 9, 1934. [Class 135] Relates to devices for controlling the supply of pressure medium to a reservoir, especially in compressed air brake apparatus or pneumatic steering apparatus of vehicles. Air is fed from the compressor at 11 through the non-return valve 13 to the reservoir at 15. The reservoir is also connected to a pipe 16, and excessive pressure therein opens a spring-pressed valve 19 admitting the pressure to a piston 27 which then opens a valve 29 to connect the supply pipe 11 to pipe 32, thereby interrupting the supply either by venting to atmosphere, or by operating a clutch to disengage the compressor driving-mechanism. Oscillation of the valve 19 is prevented by a metal bellows 26 attached to its rear side and to a notched disc 23, relieving the pressure on the rear side of the valve when open to an extent at least approximately equal to the loading pressure of the reservoir on the other side when closed.
Patent GB-194142-A (GB)
Title: Improvements in or relating to electric switch-fuses
IPC: H01H9/10
Filed: 1922-03-10
Abstract: 194,142. Electrical Improvements, Ltd., and Gregory, R. W. March 10, 1922. Oil switches; quick-break.-In high-potential switch-fuses, particularly of the ironclad oil-immersed type for use outside consumers premises, the detachable fuses which bridge fixed contacts in the box are mounted on insulators on the lid and when the lid is opened the fuses may be removed and replaced 'by earthed contact blocks, so that when the lid is again closed a selected contact is earthed. As shown applied to a threephase cable which enters through a leading-in chamber B and is connected to three clip contacts C, the fuses E which are mounted on insulators F on the lid extend between the contacts C and similar contacts D which are connected to the outgoing phases passing out through three sealing chambers B<1>. The earthing connection K can be plugged at one end into the earthed lid and its other end is provided with a contact piece K<2> which may take the place of a. fuse-end on any one of the insulators. Alternatively, the lid may carry a spring arm which, when the lid is closed, engages one of the. clip contacts normally occupied by a fuse. To open the lid the catch H, H<3> is pulled down against the action of a spring J<1>. An extension of the catch engages beneath the cover and produces the initial movement which is continued bv the overbalancing weight A<3> or by an equivalent spring.
Patent GB-1508764-A (GB)
Title: Alloy useful as hydrogen storage material
IPC: C22C30/00
Filed: 1977-02-21
Abstract: 1508764 Hydrogen storage material; metal hydrides MATSUSHITA ELECTRIC INDUSTRIAL CO 21 Feb 1977 [20 Feb 1976] 07127/77 Heading C1A [Also in Division C7] A hydrogen storage material represented by the general formula where is produced by repeated melting in an argon arc furnace, the homogenized quaternary alloy being crushed and reacted with pressurized hydrogen at room temperature to convert the alloy into complex metal hydrides. On relieving the pressure hydrogen gas is evolved. Examples given are The Ti/Zr relationship determines the equilibrium pressure, which can be lowered by increasing the Zr content.
Patent GB-213272-A (GB)
Title: Improved method of varying the speed of alternating current electric motors
IPC: H02K17/38
Filed: 1924-03-20
Abstract: 213,272. British Thomson-Houston Co., Ltd., (Assignees of Compagnie Fran- þaise pour l' Exploitation des ProcÚdÚs Thomson-Houston). March 20, 1923, [Convention date]. Alternating - c u r r e n t motors.-An alternating- current commutator motor of the type described and claimed in Specification 25358/11 is coupled mechanically and electrically in series with an induction motor to obtain speed variation over a wide range. As shown, the rotor of an induction motor A supplies the primary winding of the commutator motor B referred to above at slip frequency and the secondary winding of the motor B acts as a, regulating winding according to the brush positions. The combination may be started as two induction motors in series by short-circuiting the stator windings of B or inserting resistances therein, or starting-resistances may be employed between the machines, or a transformer may be employed in this position, or switches mav be introduced between the machines and the induction motor started up separately, and in the latter case the switches may be closed automatically. The machines may be mechanically coupled directly or through gearing.
Patent GB-684143-A (GB)
Title: Improvements in or relating to electrical contacts
IPC: H01H1/42
Filed: 1951-03-29
Abstract: 684,143. Switch contacts, sparking-preventing in switches. ALBRECHT JUNG GES. March 29,1951 [July 22, 1949], No. 7296/51. Class 38 (v) [Also in Group XXXVI] A contact comprises a a resilient main part consisting of one or more longitudinally slit tubes lying one within the other, the face edges produced by the slitting being engaged by a co-acting rigid contact, and an arcing contact mechanically and electrically connected to the main part. In Figs. 1 and 2, the main part comprises tubes 2, 3 slit at 4, and at 9, to produce contact faces 5, and the arcing contact 7, arranged inside the tubes 2, 3, is likewise slit at 8 and extends beyond the tubes 2, 3 in the direction of movement of the rigid contract. The tubes 2, 3, 7 may be soldered or welded together, made in one piece, Fig. 5 (not shown), or may be secured together by screws (Fig. 3, not shown), in which arrangement the contact 7 embraces the main contact. The contact 7 may be extended to form arcing horns, Fig. 7 (not shown), and its contact faces may be at an angle of less than 90 degrees, e.g. 45 degrees, to those of the main part, Fig. 8 (not shown). In Fig. 9 the rigid contact 19 is pivoted at 18 and engages arcing contacts 7 and main parts 5 over different parts of its surface, The arrangements are stated to assist in cleaning the contacts.
Patent GB-253978-A (GB)
Title: Improvements in or relating to the dyeing, printing, or stencilling of cellulose acetate
IPC: C09B35/215
Filed: 1925-03-18
Abstract: 253,978. British Celanese, Ltd., and Ellis, G. H. March 18, 1925. Azo dyes.- Polyazostilbene colouring matters. such as stilbene disazobisphenol, stilbene disazobismetatoluidine, and stilbene disazobisalphanaphthylamine, are prepared by diazotising the amino-stilbene and coupling it with the appropriate developer. Monoazostilbene colouring matters such as aminostilbene azometaphenylenediamine and aminostilbene azometatoluidine, are prepared either from monoacetyldiaminostilbene by diazotising the free amino group, coupling with the appropriate developer and finally hydrolysing the acetyl group, or from 4-nitro-4<1>-aminostilbene by diazotising the amino group, coupling, and subsequently reducing the nitro group. The dyestuffs mav be converted into the solubilised or colloidally dispersed form by the processes described in Specifications 219,349, 224,925, 242,393 and 242,711.
Patent GB-374492-A (GB)
Title: A reversible hand-brush
IPC: B25G1/06
Filed: 1931-03-10
Abstract: 374,492. Brushes. WHITE, C., 332, London Road, West Croydon. March 10, 1931, No. 7331. [Class 61 (i).] Reversible handles ; locking catches for socket fixings.-A handle I is reversibly secured to a hand brush by means of a bridge piece fixed to the stock in which the handle end is inserted from either side and retained by a spring E engaging a slot H in the bridge. The brush stock is parallel sided or decreases in width from both ends. Specifications 2170/14 and 122,293, [both in Class 61 (i), Hand tools &c. handles], are referred to.
Patent GB-670651-A (GB)
Title: Length measuring device
IPC: G01B3/08
Filed: 1949-03-18
Abstract: 670,651. Measures of length. GRICE, W. S. June 19, 1950 [March 18, 1949], No. 7482/49. Class 106 (ii). A surveyor's rod, or similar extensible measure, comprises a body portion and two rules or tapes which can be projected from it in opposite directions, the two rules being so connected or actuated that their movements are equal. The rules may be graduated from the free end inwards so that the length between ends can be read off from either rule against a fixed mark. The body may be of wood but, as shown, is formed of metal channels 1a, 1b joined by a web 2, the rules 4, 4a being accommodated between either face of the web and the inwardly directed flanges of the channels. Balls may be interposed to reduce friction. The rules are connected for equal movement by an endless band 6 passing round rollers 3 accommodated in gaps at either end of the web. Additional rollers (not shown) at intermediate points of the web guide the rules. One of the rollers may engage the band by means of sprocket teeth so that the rules can be adjusted by turning a handle applied to the spindle of the roller. The endless band 6 may be graduated to read through an opening in the body. Alternatively, a pointer working over a dial, or a cyclometer type indicator may be driven from the band. A writing tablet for recording lengths may be fitted to the body, and a battery-operated electric lamp may illuminate such tablet and the reading point.
Patent GB-499692-A (GB)
Title: Improvements in heating systems
IPC: G05D23/275
Filed: 1938-03-11
Abstract: 499,692. Thermal switches. HOFFMAN SPECIALTY CO. March 11, 1938, No. 7597. Convention date, March 11, 1937. [Class 38 (v)] [Also in Groups XIII and XXXV] In a switch controlling the current passing through a coil 29 heating a fluid acting on a valve 28 regulating the return of water to a boiler 20, a bar 53 supported in guides above the bellows of thermostats 33, 34, is pressed by a spring 54 against a switch arm 44, and the switch is closed by the tilting of the bar when the bellows of the thermostat 34 contracts upon a fall in temperature of the return water. A current then passes through the heating coil 39 and the valve 28 is opened to allow return water to force hot water from the boiler. The valve is also closed when the bellows of the thermostat 33 contracts, and the bar is so tilted upon its support upon the other bellows. Expansion of the bellows tilts the bar to open a switch 39 in the current of the motor 26 driving a pump circulating pump.