baber/WOPTO huggingface dataset:
Patent GB-959695-A (GB)
Title: Synchronising pulse separator circuits
Inventor: MCGHEE HENRY ARTHUR
IPC: H04N5/08
Filed: 1961-05-15
Abstract: 959,695. Television. PYE Ltd. May 15, 1962 [May 15, 1961], No. 17592/61. Headings H3T and H4F. A transistor TRI acting as a television synchronizing pulse separator for signals applied to the base via resistor R6 from the cathode of valve V1 has its base bias network R7, R8 returned to the anode of valve V1 in order that the level of the bias may change when the current through valve V1 changes, consequent upon a change of video signal amplitude, whereby the portion of the video waveform which drives the transistor into conduction bears a substantially constant relation to the black level. The circuit is otherwise similar to that described in Specification 959,694.
Patent GB-380502-A (GB)
Title: Improvements in furnaces
IPC: F27B3/00
Filed: 1931-06-17
Abstract: 380,502. Gas and spray burners. INTERNATIONAL CHROMIUM PROCESS CORPORATION, 120, Broadway, New York, U.S.A. June 17, 1931, No. 17618. Convention date, Feb. 24. [Class 75 (i).] An open-hearth metallurgical furnace 1 is fired by a plurality of downwardly-directed gas or oil burners 8 arranged in staggered relationship in two rows along the crown 3 of the furnace, each burner comprising, as shown, a fuel conduit 24, communicating through a valve 11 with a branch 10 from the main supply pipe 9, a surrounding casing 21 to which primary air is delivered from a main 12 through a branch 13 fitted with a damper 14, and a hood 20 which surrounds the lower end of the burner and is supplied, through a conduit 15 fitted with a damper 16, with preheated secondary air from a main 5 leading from a recuperator. The lower end of the casing 21 carries a deflector plate 22 which is formed with an orifice 23 in alignment with the fuel nozzle 26 and with apertures 25 for the passage of primary air into the path of travel of the fuel.
Patent GB-687483-A (GB)
Title: Improved method for the production of beta-methylmercapto-propionaldehyde
IPC: C07C325/00
Filed: 1949-07-04
Abstract: A method of making b -methyl-mercapto-propionaldehyde comprises admixing and reacting methylmercaptan with liquid acrolein at a reaction temperature below 50 DEG  C., while maintaining the mixture at a pressure of less than two atmospheres and having diacetyl peroxide dissolved in the mixture.  The acrolein should preferably be freshly distilled and when operating the process batchwise part of the peroxide is added initially and the remainder as necessary for the continuance of rapid reaction. Cooling is usually necessary. Unreacted peroxide in the reacted mixture may be removed by warming the mixture with sodium on potassium carbonate or other alkali.  The b -methylmercaptopro-pionaldehyde is separated by fractionation. The reaction may be carried out continuously by passing methylmercaptan and a solution of dibutyl peroxide in acrolein in countercurrent through a reaction zone at less than 30 DEG  C.  The product is preferably stored before distillation, the latter being carried out preferably under vacuum and batchwise or continuously, unreacted acrolein or methylmercaptan being recycled to the reactor.  In the example methylmercaptan is passed into freshly-distilled acrolein containing diacetyl peroxide whilst cooling and the product is distilled under reduced pressure to obtain unreacted starting materials, b -methylmercapto-propionaldehyde and a higher boiling residue. Specification 687,484 is referred to.
Patent GB-456013-A (GB)
Title: Improvements relating to valve-actuating mechanism
IPC: G01F3/22
Filed: 1935-06-19
Abstract: 456,013. Valve-actuating mechanism. ALLGEMEINE ELEKTRICITATS GES., 2, Friedrich Karl-Ufer, Berlin. June 19, 1935, No. 17652. Convention date, June 19, 1934. [Class 80 (iii)] [See also Group XXIX] Relates to mechanism for actuating two valves (such as those of a dry gas meter) so that when one is closed the other is opened and vice versa, and comprising a valve changeover lever 4 which is actuated by a rotatable oscillating member 2 through a spring snapover connection 8, the valve lever being maintained in each of its two end positions by preferably one of two segments 3 on the actuating member 2 engaging with a respective projection 7 on an extension 6 of the lever. In Fig. 1a, the actuating member 2 is being rotated in a clockwise direction by, for example, the diaphragm of a gas meter, the spring 8 being tensioned so that when the right-hand segment 3 leaves the projection 7 on the lever, the lever will swing over to the left as shown in Fig. 1b and will subsequently be held in that position by the left-hand segment 3 engaging the other projection 7 on the lever when the direction of oscillation of the member 2 is reversed. An auxiliary stop device comprising for instance a spring loaded roller 19 engaging with a cam-shaped prcjection 13 on the lever 4 is provided so that the lever may be held in its new position after a change-over has been effected until the corresponding segment engages with the respective projection on the lever, thus ensuring that the lever 4 does not spring back and remain in an intermediate position. Various other arrangements of the auxiliary stop device are described comprising resilient levers and catches for engaging with the segments before the lever itself is engaged.
Patent GB-889597-A (GB)
Title: Circuit arrangements for varying the secondary current of an inductively loaded transformer
IPC: H04N3/223
Filed: 1958-06-03
Abstract: 889,597. Transformers arrangements. FERNSEH G.m.b.H. June 3, 1958 [June 4, 1957], No. 17698/58. Class 38 (4). In a variable ratio trans. former arrangement of known type, feeding a load L 1  through serially - connected oppositely variable inductances L 2 , L 3 , associated with a common core 9 connected across one part n 3  of the transformer secondary winding n 2 , n 3 , to reduce the effective variation of inductance of the arrangement, an additional inductance Lk is connected across the inductance L 3 . By this means, as the load current through inductance L 1  is reduced, the current through Lk is increased, the two effects placing substantially constant load on the transformer. The inductance of Lk may be arranged to vary with the position of the core 9, which may be of ferromagnetic material and which may have high conductive metal elements at its ends. The load and supply connections may be interchanged so that the arrangement works into the primary winding of the transformer.
Patent GB-203108-A (GB)
Title: Means and apparatus for cleaning tennis and the like balls
IPC: A63B47/04
Filed: 1922-06-28
Abstract: 203,108. Spink, B. J., and Lease, A.. June 28, 1922. Balls, brushing and cleaning.-Apparatus for cleaning tennis or like balls comprises a casing A, Figs. 1 and 3, containing coco-nut fibre mats C, C<1> between which is a rotary ball-holding device V, and means located between the mats and in the path of the balls for turning the balls during the rotation of the holding device. The means for turning the balls consists of a bar F, Fig. 2, with flanges F', F<2> carrying a spring F<4> and a roller F<3> respectively between which the balls pass.
Patent GB-421646-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H02K27/12
Filed: 1933-06-23
Abstract: 421,646. Alternating - current commutator generators. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, ADKINS, B., 13, Fisher Avenue, and CLARK, L. J., 49, Sidney Road, both in Paddox, Rugby. June 23, 1933, No. 17948. [Class 35] Exciting.-In order that a polyphase commutator generator, of the type in which the commutator brushes are directly connected to, and the exciting windings are supplied from, the bus-bars, may be made to generate current at frequencies varying from zero to a definite amount, it is provided with two field-windings 6, 7 connected over a rheostat 8 and so arranged that one, 6, gives zero frequency and the other, 7, the maximum frequency required ; to lock the machine at a particular frequency current of that frequency is supplied to the winding 7 from a synchronous generator 10. In the arrangement shown, the machines are driven from a synchronous motor 4 which also drives a continuous - current exciter 5 for the synchronous machines. The brushes 2 of the main generator are connected to a contact arm 9 on the rheostats 8. When the arm 9 is in the position A the frequency is regulated by the winding 7 ; when in the positions B or C by the winding 6 ; in intermediate positions the frequency is between the two. In the position B the resistances in the exciting circuit are unbalanced and the direct current voltage distributions between the brushes is fixed. The exciting circuit of the generator 10 is controlled by a switch 11 which is mechanically connected with the arm 9 so as to be closed when the frequency as regulated by the rheostat 9 is that of the generator 10. The Provisional Specification refers to Specification 420,230.
Patent GB-904052-A (GB)
Title: Improvements relating to methods and apparatus for maintaining an atmosphere having predetermined characteristics in an open-fronted chamber
Inventor: JAMESON ROGER
IPC: B25H1/20
Filed: 1959-05-26
Abstract: 904,052. Ventilation. CARRIER ENGINEERING CO. Ltd. May 6, 1960 [May 26, 1959], No. 17959/59. Class 137. [Also in Group XXIII] An open-sided chamber 1, in particular a work cabinet, has an air curtain flowing across its open side and is supplied with treated air for ventilation through a diffusing wall 2 at the rear of the chamber. Air issuing from a slot 11 together with the air circulating in the chamber is withdrawn through an extract grill 6 whence it passes to the unit 4 to be treated before being recirculated both to the curtain and the chamber. A night cover 14 and a light 15 are provided. In a modification, the chamber may have two open sides protected by air curtains, the ventilating air then issuing from a centrallydisposed diffusing wall. The duct above the slot 11 may have a reducing cross-section to provide a uniform pressure along the length of the slot. A number of separate chambers may be disposed side-by-side and be connected by a conveyer.
Patent GB-1434893-A (GB)
Title: Instrument panel guard
IPC: G01D11/26
Filed: 1974-04-24
Abstract: 1434893 Instrument panel guards CATERPILLAR TRACTOR CO 24 April 1974 [2 May 1973] 17966/74 Heading B7H An instrument console 11 is provided, with a protective guard 10 which is movable between a position in which it overlies the instrument panel 17 and an open retracted position. The guard includes a pair of elongate curved plates 37, 46 individually pivotally mounted to the console side walls 14. Plate 46 has flanges 52, 51 along its upper and lower edges and plate 37 has similar flanges 45, 44. As plate 46 is moved from its stowed, Fig. 3, to its in use, Fig. 1, position, flange 51 engages flanges 45 to pivot plate 37. In the protective position flange 44 engages an extended lower edge 19 of the instrument panel 17. The plates are held in the retracted position by a spring loaded latch member 60 which engages through apertures formed in flange 52, lower edge 19 and a lug 56 carried by plate 37.
Patent GB-842162-A (GB)
Title: Improvements in washer mountings for valves and the like
IPC: F16K31/06
Filed: 1957-07-06
Abstract: 842,162. Valves. BLACK AUTOMATIC CONTROLS Ltd., and BLACK, A. July 4, 1958 [June 6, 1957], No. 17993/57. Class 135. A washer 6 is attached to the lower end of an operating plunger 1 by a sleeve or ferrule 3 with an inturned retaining flange 4, and which is forced over the end of the plunger provided with inclined serrations 2, axial and radial clearances of two or three thousandths of an inch being provided between the washer and ferrule. The valve shown is intended to be used as a miniature solenoid valve, the plunger 1 forming the armature, and the ferrule being formed with an outer flange 5 serving as an abutment for a loading-spring. As shown, the upper and lower surfaces of the washer are both flat, but the lower surface may be of part-spherical or of conical form.
Patent GB-1466737-A (GB)
Title: Heat-treatment for electric cables
IPC: C21D9/52
Filed: 1974-04-24
Abstract: 1466737 Making electrical cable; drawing LES CABLES DE LYON 24 April 1974 [25 April 1973] 18020/74 Headings B3A and B3P [Also in Division C7] A method of making an electrical cable 1 formed of a conductive core, a layer of insulating mineral material around the core and an external sheath of iron alloy, comprises subjecting the cable to successive steps of annealing the sheath at a first temperature, annealing the core at a second temperature lower than the first and tempering the sheath and core. In between drawing stages the cable 1 passes into a furnace 2, which comprises a muffle 7 surrounded by an induction heater 8, where the temperature of the sheath, which is of stainless steel, is quickly raised to 900-1000 C. while the insulating material keeps the core temperature down to about 300 C. as the cable leaves the furnace. The cable then enters a muffle 11 where the sheath temperature falls slowly as it heats the core, which reaches 600 C. as the cable emerges from the muffle. A reducing gas is fed through a tube 12 into the muffles 11, 7 and it is burnt where it leaves the latter. The cable then enters a tempering enclosure 4 where the sheath temperature falls rapidly while that of the core falls more slowly. An ejector is fitted to each end of the enclosure 4 to provide a controlled flow of coolant, which enters through pipes 13, 14 and leaves the housing through a pipe 15.
Patent GB-1242563-A (GB)
Title: Improvements relating to the retrieval of information from noisy channels
Inventor: SCHNURR LEWIS EDWARD
IPC: H03D1/04
Filed: 1968-04-17
Abstract: 1,242,563. Photo-electric apparatus. NATIONAL RESEARCH DEVELOPMENT CORP. April 17, 1969 [April 17, 1968], No.18150/68. Heading G1A. In a method or system for recovering data from a noise corrupted signal, the noise signal alone is sampled to determine the frequency with which it exceeds a plurality of predetermined levels at least one above and one below a mean level and any correlation in changes in outputs from the determing apparatus for the two levels is used to indicate the occurrence of a signal pulse. A practical circuit includes five parallel paths in which the noise frequency at different levels is determined and in which the presence of a signal pulse is indicated by a simultaneous change in the outputs from all paths. Transistor positive and negative level discriminators are exemplified together with a transistor pulse rate detector which produces an output in response to changes in the discriminator output frequencies
Patent GB-562315-A (GB)
Title: Improvements in or relating to frequency and phase modulation receivers
IPC: H03D3/12
Filed: 1942-12-22
Abstract: 562,315. Frequency and phase modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 22, 1942, No. 18222. Convention date, Dec. 22, 1941. [Class 40 (v)] A balanced demodulator for frequency- or phase-modulated waves is arranged to be non-responsive to amplitude modulation, without the use of a preceding limiter, by suitable choice of the input amplitude and of the load resistances of the balanced rectifiers. The rectifiers may also be arranged to de-emphasise the higher modulation notes. As shown, the receiver comprises a pre-amplifier 31, local oscillator 33, mixer 32, I.F. amplifier 35 and frequency - discriminator 71, 91 of the phasing type feeding balanced grid-leak detectors 1, 2 with their anode circuits coupled differentially to the LF stages. The Specification includes diagrams, Figs. 2 and 3 (not shown), which indicate that, particularly for high values of the grid leaks 3, 5, the output to the LF stage is substantially independent of carrier amplitude between considerable limits, so that the receiver is non- responsive to amplitude modulation. The time constants of the grid leaks and condensers may be such that loss of high notes occurs, and may be designed to counterbalance pre-emphasis of the high notes at the transmitter, or to give correct reception of a phase-modulated transmission. AFC voltage may be obtained across condensers interposed between the inner ends of the primary'coils 50, 51 of the output transformer 52 and may be applied to a reactance tube 70 for correcting the frequency of the local oscillator 33. The carrier level at the input to the demodulator may be varied manually in any suitable way, or an AVC rectifier 37 and load resistance 38 may be used to regulate the amplification of the stages 31, 35. The discriminator may be of the type described in Specifications 296,678, [Class 40 (v)], and 426,228, using circuits tuned respectively above and below the intermediate frequency, Figs. 1 and 5 (not shown) ; and the output transformer 52 may be replaced by resistance coupling, Fig. 4 (not shown).
Patent GB-353181-A (GB)
Title: A new or improved arrangement for the attachment of rubber to solid surfaces
IPC: A43B13/28
Filed: 1930-06-14
Abstract: 353,181. Wearing surfaces for roads, floors, stairs, &c. SPICER, W. J., 77, Ladywood Road, Ladywood, Birmingham. June 14, 1930, No. 18250. [Classes 20 (iv) and 107.] Means for attaching rubber treads on stairs, rubber mats in position, or the parts of a rubber mat, floor, or road on a foundation, or for attaching rubber to solid surfaces generally, comprises an overhanging projection or projections 10, as shown in the Figure, secured to the boot or other surface to which the rubber 11 is to be attached. e.g. by spikes 8, and fitting into a recess 12 on the underside of the rubber. One or more locking strips or rods 14 are inserted in a slot or slots 13 in the face of the rubber and forced, against the resiliency of the rubber, under the projections 10.
Patent GB-587042-A (GB)
Title: Improvements in and relating to buildings and to blocks for use in constructing buildings
IPC: E04C1/39
Filed: 1944-09-25
Abstract: 587,042. Wall service-conduits. THORN, W. E., and COLLINS, F. W. Sept. 25, 1944, No. 18269. [Class 20 (ii)] A channel-section, concrete building block 1 which with similar blocks forms a conduit for pipes and cables, is open at both ends 4 and one side 7, has wooden inserts 6 embedded in the concrete to receive screws for removably attaching a cover plate of metal, wood or plaster board to the open side 7 and has arched, strengthening webs 5. When the blocks are reinforced, the reinforcement may have holes for receiving the screws. The flanges are arched at their interior sides to strengthen the blocks. The blocks may be lined with felt for insulation. The blocks may be of rectangular, tee or angle form and may be plane, keyed or adapted to interlock and the back face of the longitudinal web and the outer faces of the flanges may be keyed.
Patent GB-146355-A (GB)
Title: Improvements in hoisting apparatus for mine cages
IPC: B66B1/12
Filed: 1920-07-02
Abstract: 146,355. Siemens - Schuckertwerke. July 2, 1919, [Convention date]. Stopping automatically at end of run.-In controlling devices for lifts in which the control mechanism of the winding apparatus is actuated by cams geared to the winding drum and adapted to be set to bring the cage to rest, or retard, or accelerate it, at different depths, the adjustment of the cams is effected by mechanism which simultaneously makes a corresponding alteration in the position of the adjustable index of the depth indicator. The wheel 12 carrying the cams 1, 13, 15 is keyed on a hollow shaft 10 on which are freely mounted a sprocket 11 and double sprocket 8, 9. Either sprocket can be clutched to the shaft by sliding a coupling member 18 by means of a rod 16 passing through the shaft A pin 17 passing through a slot in the shaft connects the member 18 and rod 16, and a spring 19 normally maintains the coupling in engagement with the sprocket 8, 9. The sprocket 8 is connected by chain gearing to the shaft of the winding drum 5 and the chains 21, 22 which pass round the sprockets 9, 11 and sheaves 29, 30, respectively, carry the depth indicator 3 and the adjustable index 4. The shaft 36 of the controlling mechanism has arms 34, 35 on which rollers 2, 24 are mounted in the path of the cams 1, 13. The cam 1 is arranged to stop the cage and the cam 13 to limit the acceleration when re-starting. The cam 15 actuates an alarm bell. When it is desired to change the working of the cage from one level to another, the shaft 16 is moved to de-clutch the sprocket 8, 9 and to engage the sprocket 11, and is then turned by the hand-wheel 20 until the index 4 has moved to the position indicating the desired level. The rotation of the shaft has also turned the cams to a position in which the control mechanism will be actuated when the cage reaches this level. In order that the operator may know when the cams and indicator have been set correctly for any level indicated by the hand 25 and figures I, II, III, a series of pairs of contacts 31, 32, 33 corresponding to the various levels I, II, III, are arranged to co-act with a projection 37 on the index 4 to give a visible signal by means of the lamp 28. In a modification, the winding drum and the cams are connected by planet gearing. In another modification, for use with two cages, one of which ascends as the other descends, the adjustment of the winding drums is arranged to effect the adjustment of the cams
Patent GB-1305437-A (GB)
IPC: F02M51/08
Filed: 1970-04-17
Abstract: 1305437 Valves ROBERT BOSCH GmbH 17 April 1970 [18 April 1968] 18355/70 Heading F2V [Also in Divisions F1 and H1] A solenoid valve having short opening and closing times, for use in I.C. engine petrol injection systems, comprises a number of electromagnets formed by disc-shaped windings 10 and ferromagnetic discs 11, and a grooved ferromagnetic armature 12 whose grooves correspond in number to the number of windings 10. The windings are such that the polarity of the magnetic field forces changes from disc 11 to disc 11.
Patent GB-401796-A (GB)
Title: Improvements in and relating to internal combustion engines of the liquid fuel injection type
IPC: F02B21/02
Filed: 1932-06-29
Abstract: 401,796. Oil engines. HASSON, P. R., LIVSEY, H., and COOPER, H., Steam Plough & Locomotive Works, Leeds. June 29, 1932, No. 18370. [Class 7 (iii).] An air pocket b in the cylinder head a is provided with a number of pairs of converging holes c<1>, c<2>, leading into a combustion chamber f, corresponding to the number of jets d<1> issuing from an injector d, the jets of fuel and air being preferably arranged fanwise. Some fuel may enter the pocket and after ignition expel the air from it. To insulate the pocket from the cooling effects of the atmosphere or of the engine-cooling water, it may be surrounded by an annular air cavity b<1> to which air is admitted through openings b<2> controlled by a plate b<3> ; or it may be surrounded by asbestos. To allow for expansion the pocket is formed by a corrugated steel tube. To ensure easy starting, a cartridge holder, having one of the holes c<2> drilled in it, is inserted in the pocket.
Patent GB-668326-A (GB)
Title: Counting mechanism
IPC: G06M1/04
Filed: 1949-07-12
Abstract: 668,326. Counting-apparatus. VEEDERROOT, Inc. July 12, 1949 [July 16, 1948], No. 18371/49. Class 106 (i). [Also in Group XXXV] In counting mechanism in which a ratchet 26, Fig. 2, and' connected numeral wheel' 16 are rotated by a feed pawl 62 operated by the armature 50 of an actuating electromagnet 40, Fig. 1, the electromagnet is supported on a bracket adjustably secured to a base 10, and the movement of the armature in the non- feeding direction is limited by an adjustable armature-engaging stop e.g. the head of a screw 86. As shown, the armature is urged in this direction by a spring 72 engaged by an adjustable plunger 80. Two electromagnets 40 are secured on a bracket 32 secured to the base by screws 30 passing through slots 28. The armature is pivoted on a shaft 48 and carries an arm 58 connected by links 66 to a feed-pawl-carrying arm 60 pivoted on the numeral wheel shaft 18 supported in an inverted U-frame 14. The ratchet 26 is engaged by a spring-urged holding pawl 68 pivoted on a shaft 22 carrying transfer pinions 24.