baber/WOPTO huggingface dataset:
Patent GB-1377543-A (GB)
Title: Decoding systems for colour television receivers
IPC: H04N9/455
Filed: 1972-02-08
Abstract: 1377543 Colour television SONY CORP 8 Feb 1972 [12 Feb 1971] 5863/72 Heading H4F A PAL swinging burst chrominance signal decoding system comprises a pair of demodulators 12, 13 respectively demodulating the R-Y chrominance signal and the B-Y chrominance signal. The B-Y demodulator 13 is fed with a reference subcarrier signal derived from an oscillator 22, 23 phase locked in antiphase to the average phase of the swinging burst. The R-Y demodulator 12 receives its reference subcarrier signal from an oscillator circuit comprising a first switching circuit 15 deriving the burst signal in its original phase and in the inverted phase thereof on alternate lines and an oscillator 18, 19 phase locked to the average phase of the output of the first switching circuit 15. The output of the oscillator 18, 19 is fed directly to one input of a second switching circuit 20 and via a phase inverter 21 to a second input of said second switching circuit. The two switching circuits 15 and 20 are operated in synchronism by a flip-flop 17 such that the phase of the sub-  carrier signal fed to demodulator 12 is always correct irrespective of the switching phase of flipflop 17 as caused by the indeterminate time of switching on of the television set.
Patent GB-1458862-A (GB)
Title: Selenium charge carrier member
IPC: G03G5/10
Filed: 1974-02-08
Abstract: 1458862 Electro-photographic materials INTERNATIONAL STANDARD ELECTRIC CORP 8 Feb 1974 [8 Feb 1973] 05873/74 Heading G2C An electro-photographic material comprises a conductive support, a conductive layer of polyvinyl acetal with lampblack and/or graphite and a Se layer. The Se layer may contain 0À5 wt. per cent As or it may contain Pb or Pb compounds. Materials which comprise the above support and the conductive layer set out above on which is deposited a layer of Se, a layer of Se and Pb or a compound of Pb and then a layer of Se and 0À5 wt. per cent of As are disclosed but are claimed in Specification 1456724.
Patent GB-131057-A (GB)
Title: Improvements in Electrical Resistances.
Inventor: MULLARD STANLEY ROBERT
IPC: H01C7/00
Filed: 1918-04-06
Abstract: 131,057. Mullard, S. a. April 6, 1918. Resistances.-A high resistance, for use especially in wireless systems on aircraft, consists of a thread of partially carbonized cellulose or the like embedded in insulated material such as paraffin wax. The carbonized thread 1 is connected by paste joints 5 to metal leads 4 and enclosed in a fibre or ebonite tube; after filling the tube with molten wax, metal caps 3 are soldered to the lead.
Patent GB-844039-A (GB)
Title: Improvements in or relating to photo-mechanical reproduction
Inventor: NEUGEBAUER WILHELM
IPC: G03F7/022
Filed: 1959-02-20
Abstract: Esters of 6-hydroxy-(11,21,1,2)-pyridobenzimidazole are made by treating this substance with I naphthoquinone:(1,2) - diazide - (2) - 4 - sulphochloride, II the corresponding -5-sulphochloride, III naphthoquinone-(1,2)-diazide-(1)-5-sulphochloride, IV the corresponding -6-sulphochloride, V the corresponding -7-sulphochloride and VI benzoquinone-(1,2)- diazide-(2)-4-sulphochloride, in aqueous alkaline ethylene glycol monomethyl ether.  The sulphochloride reactants may be obtained by heating the sodium salts of the corresponding sulphonic acids with chlorosulphonic acid.
Patent GB-593739-A (GB)
Title: Improvements in machines or mechanisms for rolling slide fastener elements
IPC: B21D53/50
Filed: 1944-03-31
Abstract: 593,739. Making slide fastener elements. NATZKE, A. G. March 31., 1944. No. 6030. [Classes 83 (ii) and 83 (iv)] Die-rolling.-A machine for producing a connected series of partially formed interlocking slide fastener elements from wire or other flexible metal stock comprises a bed carrying a pair of oppositely disposed bearing blocks, each block mounting a spindle adapted to receive a die-roll, means for adjusting one block horizontally and means for adjusting the other block vertically. Each die-roll is formed at one end with an annular flange which is cut away on opposite sides so as to enter a complemental recess formed in the end of the roller spindle. Between the end standards 11 of the machine are mounted shafts 14, 15 b which are geared together by gears 21, 22 of the same diameter. One of the shafts 15 is driven from a motor 17 by a belt 19 and is connected through a gear-wheel 27, and chain 28 with a gear 29 at the end of a spindle 30 mounted in a bearing block 34. Similarly, the shaft 14 is adapted to drive a spindle 25 mounted in a bearing block 31. The block 31 carries a rack 52 by which it may be adjusted horizontally by means of a pinion 54 on a shaft 55. The block 34 has fixed to its base laterally spaced members 64 having inclined bottom faces adapted to co-operate with and seat upon correspondingly inclined upper faces of members 60 which may be moved to and from each other on the base 10 by means of shaft 58 having oppositely screwed portions 58a, 58b. The movement of the members 60 raises or lowers the block 34 which is centralized by means of a T-block depending into a groove 10b in the base 10. Each spindle is formed with an enlarged end portion having a circular recess across which are fixed rectangular bars 44, 45 by means of screws 46. A circular flange on a roller die 33 is cut away on opposite sides 43a and 43b so as to fit into the recess between the bars 44, 45 and is secured in position by a screw cap 47. After fitting the dies to the ends of the spindles, the blocks 31 and 34 are adjusted to bring the dies into operative position, one being vertically above the other. The wire or other strip is fed between sets of rollers 66 to the dies between which it is shaped and is then received into a trough 70 adjustably mounted on the block 31 by means of a screw 73.
Patent GB-177674-A (GB)
Title: An improved bucket pump
IPC: F04B53/12
Filed: 1921-02-22
Abstract: 177,674. Dunk, A. J. Feb. 22, 1921. Lever-actuated pumps; buckets; double-acting bucket-pumps; pumps for liquids containing solids in suspension; pumps for volatile liquids; strainers; valves and valve seats, arrangement of.-A pump for liquids, the leakage of which is specially deleterious, or with foreign matter in suspension, comprises a double cylinder in which slide pistons 5 containing suction valves 6, operated through links 8 and Lever 9 by oscillation of the shaft 10, the flat delivery valves 4 of diameter larger than that of the cylinder being supported by bosses formed on the end covers and held against the cylinder ends by springs 3. Liquid enters the space between the pistons, and the suction valves 6 are opened mechanically by the links 8, the gudgeons pins of which extend into axial slots formed in the piston walls to communicate reciprocatory motion to the pistons. The shaft 10 passes through glands formed in the cylinder walls on the suction side and is operated by handle or lever. Sediment pockets 11 may also be provided.
Patent GB-1261888-A (GB)
Title: Textile process control
Inventor: GIBSON JAMES DONALD MACKAY
IPC: D06B23/28
Filed: 1968-02-07
Abstract: 1,261,888. Impregnating textiles. I.W.S. NOMINEE CO. Ltd. 30 Jan., 1969 [7 Feb., 1968], No. 6095/68. Heading D1L. [Also in Division G1] In the continuous controlled impregnation of textile material by passage through liquid in a reservoir to which liquid is fed at a constant rate, with subsequent squeezing out of excess liquid and retention in the reservoir, the level of the liquid is maintained substantially constant by automatic variation of the squeezing action. The squeeze surfaces may be both rotary or non-rotary or one of each, and may be adjacent to or separate from the reservoir. As shown, liquid is fed through a line 15 to a reservoir above the nip of squeeze rolls 10 and 11, variation of the squeezing action of roll 16 being effected by variation of the pressure of operating air supplied via a regulator valve 23, relief valve 25 and line 27 to one side of an actuator 17 in opposition to air supplied at 20 psi to the other side via a line 26. The operating air is supplied at a pressure of 20 psi to valve 23. The air pressure variation is effected by bubbling gas through a submerged tube 18, rise in the level of liquid causing a back pressure in a line 19 which inflates a flexible bag 20 and opens to a variable extent the regulator valve 23. When the pressure in line 19 falls below 20 psi, the relief valve opens line 24 to the atmosphere via line 25.
Patent GB-850899-A (GB)
Title: An apparatus for the heating or cooling of running thread and like filamentary textile products, and a method for crimping such products
IPC: D02J13/00
Filed: 1959-02-23
Abstract: 850,899. Crimping yarns. ONDERZOEKINGSINSTITUUT RESEARCH N.V. Feb. 23, 1959 [March 11, 1958], No. 6169/59. Class 120(3). [Also in Group XI] In a method of crimping thread and like filamentary thermoplastic material by leading the thread &c. successively through a twist stop, heating and cooling devices, false-twister and thread discharge means, the heating and/or cooling device(s) comprise surfaces mounted in different planes relatively to one and the same straight line and arranged in succession in the direction of movement of the thread and means for heating or cooling the surfaces on the side facing the line. In order to eliminate natural oscillation of the thread traversing the surfaces, the latter are mounted so that they contact the surface of an imaginary cylinder of which the diameter equals the thickness of the yarn. The heater/cooler shown in Fig. 1 is formed by heated or heat-dissipating plates 5 almost contacting the line connecting eyelet 1 and a discharge device 2 and contacting the running thread therebetween. Sections or plates 5, Fig. 2, formed by nuts at 7 in a single strip 6 may be bent to form a trough the bottom of which is traversed by the thread. As shown in Fig. 3, thread is led along a resistance wire 8 bent into a helix (having less than 5 turns per 20 cm.) in such manner that it contacts the thread at a point in every cross-section of its length and that adjacent cross-sections establish contact at different points on the thread surface. The strip or wire may be of stainless steel and heated directly by the passage of electric current therethrough: alternatively the uncut portion of strip 6 may be in the form of a box through which fluid heating (or cooling) medium is passed.
Patent GB-739187-A (GB)
Title: Improvements connected with apparatus for applying a coating of a comestible substance to biscuits
Inventor: WILSON WILLIAM
IPC: A21C15/00
Filed: 1953-03-06
Abstract: 739,187. Reciprocating pumps. HUGHES & SONS, Ltd., A. March 8, 1954 [March 6, 1953], No. 6203/53. Class 102 (1). [Also in Group VI] An apparatus for feeding a coating substance intermittently from nozzles comprises a rockable hopper 6 with nozzles 7, in groups of three to correspond with rows of biscuits on conveyer 5, has trunnions 8 accommodated in bearings 9 carried by arms 10. A plunger 13 slides between parallel vertically reciprocable valve plates 12 extending the whole length of the hopper. The plunger is actuated by a plurality of rods 14 connected to a bar 17 operated, through relatively adjustable rods 18, 19 and a cam-operated means by the conveyer drive so that the motion of the plunger is in step with the biscuits. Similarly hopper 6 is rocked by link 21 controlled by the conveyer drive. The places 12 are secured by aligned integral lugs 12a to the lower ends of valve-actuating arms 16 connected at their upper ends to members 23 which have slots to accommodate the bar 17 and allow relative movement between bar 17 and members 23. Each member 23 is connected to an intermediate point of a lever 24 pivotally connected by link 25 to a bar 28 joining two pillars 11 and to a rod 27 secured to hopper 6 by bracket 26. Thus the valve plates are reciprocated as the hopper is rocked. In operation, starting with plunger 13 raised and valve plates 12 lowered, jam is trapped between plates 12 beneath plunger 13 and the hopper is in its normal position. When a row of biscuits is in position beneath the nozzles, plunger 13 moves down and when the stroke ends, just before the biscuits move from beneath the nozzles, the hopper is rocked to detach the coating from the nozzles. The valve plates and plunger are raised and the valve plates are lowered, as the hopper is rocked, to trap a further quantity of jam.
Patent GB-1421037-A (GB)
Title: Valve assembly
IPC: F15B13/02
Filed: 1973-02-08
Abstract: 1421037 Valves NORDHYDRAULIC AB 8 Feb 1973 [25 Feb 1972] 6274/73 Heading F2V A valve assembly for controlling a reversible positive-displacement hydraulic motor 11, e.g. for hydraulic cranes, front end loaders and power shovels, comprises a directional control valve 17 associated with supply passages 21, 22, 25, drain passages 19, 20, 26, and transfer passages 23, 24 for directing actuating fluid to and from the motor via ports 28, 30. Moreover, the assembly includes check valves 29, 31, and valves 33, 39 which function as pressure relief anti-cavitation and drain valves. During operation with the pump P supplying pressure fluid to one end 14, 15 of the motor, the pressure differential across ports 28, 30 subjected to a slidable plunger 45 via passages 48, 49 or the pressure differential across passages 23, 24 subjected to the plunger 45 via passages shown in chain lines, causes the plunger to open the appropriate valve 33 or 39 to permit fluid to pass from the other end of the motor to drain. Excess movement of the motor piston due to heavy loading resulting in low pressure and incipient cavitation on the supply side of the motor piston, destroys the pressure differential and causes the valve to close thereby preventing cavitation. Excess pressure at port 28 or 30 forces the associated valve 33 or 39 to open without the assistance of the plunger 45, to relieve the pressure.
Patent GB-591724-A (GB)
Title: Improvements in or relating to brake mechanisms
IPC: F16D55/224
Filed: 1945-03-14
Abstract: 591,724. Brakes. BUDD WHEEL CO. March 14, 1945, No. 6398. Convention date, March 15, 1944. [Class 103 (i)] In disc-brake mechanism of the kind described in Specification 561,643, the tubular transverse brake-supporting member 20 is expanded to form an enlarged housing 24 having a seat 26 to which is secured a separate part 28 including a cylinder 29<1>, in which opposed pistons 30 are connected to levers 36 operating the brake shoes 19. The levers 36 are carried on shafts 34 journalled in a part 27 which is secured to another seat 25 on the housing 24. As shown, two brake discs 18 and associated operating mechanism are provided in connection with the axle 14 of a rail truck. The seats 25, 26 shown in Fig 2 are oppositely inclined, but in a modification the seat 25 is horizontal and the seat 26 is inclined but is formed wholly on the part 27. The lever 36 is, in this construction, splined to the top of the shaft 34. In a further modification, the tubular part 20 is disposed beneath the cylinder 29<1> which is carried in the only detachable part of the housing. The shaft 34 is journalled in an integral extension of the tubular part 20.
Patent GB-1237190-A (GB)
Title: Apparatus for towing by ships for removal of oil slicks and other forms of buoyant pollutants from a water surface
Inventor: PEDRICK ARTHUR PAUL
IPC: E02B15/04
Filed: 1971-03-09
Abstract: 1,237,190. Scavenging vessels. A. P. PEDRICK. 9 March, 1971, No. 6413/71. Heading B7A. Device for removing oil and other flotsam from the sea surface comprises a device 1, towed by a ship and carrying two coils of a hose 3, 4 which can float with a portion above the water level and a part below. Each hose is connected at its end to a tube 11, 12 which extends below the water surface. In operation, hoses 3, 4 are unwound by an electric motor 7 and collect the oil on the surface. Thin oil tends to flow towards the ends of the hoses 3, 4 and the tubes 11, 12, the latter tubes sucking the oil from the surface to tanks in the ship. In a modification, booms extend from the ends of the hoses 3, 4 outwardly to extend the area swept by the ship.
Patent GB-303685-A (GB)
Title: An improved method of enabling a retaining wall or dam to be constructed in waterbearing or waterlogged soil
IPC: E02D5/18
Filed: 1928-03-01
Abstract: 303,685. Moir, Sir E. W. March 1, 1928. Excavating.-In excavating a trench in waterbearing or waterlogged soils, preparatory to the construction of a retaining wall or dam therein, particularly a cut-off wall for retaining or holding back water in waterworks undertakings and irrigation schemes, the soil is held back and prevented from flowing into the trench by the use of compressed air. Fig. 1 shows a cross-section of a trench which has been cut so as to connect a series of drainage shafts a. When the trench has been sunk to a depth, at which the soil begins to pour into it, an airtight partition or ceiling d is constructed along it, compressed air is forced in so as to hold back the soil, and the excavation of the trench is continued. Communication with the lower part of the trench is maintained through the shafts a which are fitted with ceilings c. In a modification, a series of superposed tunnels f, Fig. 4, are cut by the shield and compressed air method. As each tnnnel is cut, it is filled with concrete, except for a concave segment corresponding to the overlap of the next tunnel to be cut. Alternatively the headings are of rectangular section. In another modification, a series of similarly-overlapping vertical shafts is sunk or cut in the same way and filled in with concrete.
Patent GB-209630-A (GB)
Title: Apparatus for making sausages
IPC: A22C11/02
Filed: 1923-03-07
Abstract: 209,630. Aitken, J., and Reid, P. S. March 7, 1923. Extrusion machines.-An appliance for making skinless sausages comprises a barrel 3, adapted to fit over a mandrel 2 on the nozzle 1 of a sausage-filler, having a plunger 4 attached to a rod 5. The barrel 3 is filled with sausage-meat 8 in opposition to the pressure of the operator against the handle 6. After the required amount of meat has been introduced, the appliance is withdrawn from the mandrel 2, the lug 7 is positioned against a fixed surface, and the sausage is ejected. The barrel 7 is preferably tapered towards the end remote from the filler.
Patent GB-665380-A (GB)
Title: Improvements in apparatus for the measurement and control of the angular displacement of an electric motor
Inventor: KELSALL RICHARD HOPE
IPC: H02P25/32
Filed: 1949-03-10
Abstract: 665,380. Control of A.C. motors. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 14, 1949. [March 14, 1950] No. 6608/49. Class 38 (iii). The measurement and control of the angular displacement of an electric motor IM, which may be the tool-feed motor of a planing machine, is effected by deriving a voltage proportional to the instantaneous speed of the motor, integrating said voltage and applying the integrated voltage to an electric discharge device V3 in such manner that, in response to the integrated voltage attaining a predetermined value (corresponding to a certain angular displacement of the motor) the discharge device is rendered effective to discontinue rotation of the motor. As shown, the feed-motor IM is of the induction type and drives a tachometer generator TG connected between the grid and cathode of a valve V1 which is included with condenser C and resistor R1 in a Miller integrating circuit. The anode of valve V1 is connected through resistor R2 to the grid of amplifier valve V2 which is so biassed that normally it is inoperative, but, when the integrated voltage reaches a predetermined valve, it becomes operative and applies a voltage to the grid of thyratron V3. The cathode-potential of the valve V2 is determined by the setting of a potentiometer P1 so that the degree of angular rotation of the motor is adjustable. The valve V1 is adapted to be short-circuited through contacts M/2 so that valve V2 is then non-conductive and the thyratron V3 is positively biased. When an initiating contactor is operated, contacts M/1 close and coil F is energised from transformer T through valve V3. Three-phase current is supplied to the motor through contacts F/1, F/2, F/3. The contacts M/2 are now open, the valve V1 integrating the output of the tachometer generator, so that, after a time, the valve V2 is rendered conductive and the valve V3 non-conductive. The coil F is then de-energised and the motor disconnected from the alternating-current supply, braking being provided by supplying direct-current through contacts F/4, F/5. At the completion of one operation of the feed-motor the valve V1 is re-set for the next operation bv the closure of contacts M/2 to short-circuit the valve and discharge the condenser C. If the initiating contactor is operated and the motor fails to run, the valve V3 will be rendered non-condutive -after a period due to a resistor R10 which affords a negative bias for the valve V1 separate from that from the tachometer generator. Specification 595,897 is referred to.
Patent GB-1173274-A (GB)
Title: Rolling Mills
Inventor: ADAIR JAMES RICHARD
IPC: B21B31/10
Filed: 1966-02-15
Abstract: 1,173,274. Rolling. UNITED ENG. & FOUNDRY CO. 3 Feb., 1967 [15 Feb., 1966], No. 6676/66. Heading B3M. The rolls 13 and 14 of a rolling mill are arranged to be removable from the mill housings 11 and 12, while rolled material is still passing through the mill. To remove the rolls, balance piston-cylinder assemblies 17 are operated to raise the upper roll 13, and a spacer 29 is placed between the right-hand chocks 15 and 16. A sled 24 which supports the chocks 16 is pulled partly from the housing by a cylinder 27 until wheels 34 on the left-hand chock 15 are above transverse beams 31 and 32 in the housings. Retraction of the left-hand assemblies 17 lowers the wheels on to the beams and permits both roll assemblies to be pulled clear of the housing. As the lower roll assembly is withdrawn from the housings, the right-hand chock 15 of the upper roller assembly is supported by the chock 16 of the lower assembly, while the left-hand chock 15 is supported on beams passing across the housings. A spacer 28 is placed between the left-hand chocks immediately before extensions 35 of the beams cease to support chock 15. In an alternative arrangement, the beams 31 and 32 extend between brackets on the two screws 18, the screws being operable to raise the beams into engagement with the rollers on the chock 15.