baber/WOPTO huggingface dataset:
Patent GB-564957-A (GB)
Title: Improvements in receivers for receiving modulated carrier wave signals operating with noise reduction
IPC: H03G11/04
Filed: 1943-04-17
Abstract: 564,957. Wireless receiving circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 17, 1943, No. 6177. Convention date, April 17, 1942. [Class 40 (v)] A receiver for modulated carrier wave signals comprises a thermionic detector having a cathode and anode to which signals are fed, and a further detector to which said signals are also arranged to be fed which is biassed so as to respond only to impulses above a predetermined amplitude and in which the further detector is arranged so as to apply its detected output to a control electrode between the anode and cathode of the first detector to reduce its efficiency in the presence of said impulses. In the superheterodyne receiver shown in the Figure, the I.F. output transformer 3<11> feeds a tuned circuit 4<1> connected to a grid-controlled rectifier 4 having a load resistance 6 from which the audio-frequency signal is fed through condenser 15 and transformer 16 to the audiofrequency stages (not shown). A valve 7 arranged as shown produces at 9<1> a negative potential which is fed via resistance 10, line 11<1> and filter resistances 11<11> to mute the early stages of the receiver in the absence of an adequate signal. On.the appearance of an adequate signal, a negative potential taken from a tapping on resistance 6 is applied to the control grid of valve 7 to bias it to cut-off and so remove the muting bias. In this condition, A.V.C. potential from the negative end of resistance 6 is applied through resistance 11 and line 11<1> to the early stages of the receiver, the potential being smoothed by the network 10, 11, 18. Part of the I.F. output is fed to a tuned circuit 5<1> connected to a diode 5 having a load resistor 12 and bias potential 13, so arranged that impulses of' noise or static, in excess of the greatest modulation amplitude produce a negative potential at the anode end of resistor 12 which is applied to the grid of detector 4 to eliminate the signal during interference. In a modification, Fig. 1b (not shown), the diode 5 is replaced by a gridcontrolled rectifier, the grid of which is supplied with a negative potential derived by rectification of the audio-frequency signal. Thus the potential at which the valve 5 conducts is adjusted in accordance with the modulation amplitude, thus enabling all static above the modulation amplitude to be suppressed.
Patent GB-641755-A (GB)
Title: New or improved apparatus for greasing baking tins and like utensils or batches of dough or paste preparatory to baking
IPC: A21B3/16
Filed: 1948-02-28
Abstract: 641,755. Greasing baking tins and dough &c. BRADFORD & SONS, Ltd., S., and FOSTER, A. Feb. 28, 1948, No. 6244. [Class 28(i)] Baking tins 12, or batches of dough &c. carried by a conveyer 10 through a housing 11 containing two grease spray guns 13 contact a pair of rods 14 which operate the gun operating triggers 136. The rods 14, which normally hang vertically with the guns in the "off " position, are secured to a horizontal shaft 15 carrying two blade springs 17 which on rotation of the rods, actuate the triggers. The guns may diverge slightly towards the sides of the housing.
Patent GB-1171831-A (GB)
Title: Automatic Ignition Systems for Burners.
Inventor: WADE KENNETH ROBINSON
IPC: F23D14/02
Filed: 1967-02-09
Abstract: 1,171,831. Controlling burners. UNITED GAS INDUSTRIES Ltd. 26 Jan., 1968 [9 Feb., 1967], No. 6313/67. Heading F4T. The control circuit of a gas burner ignition system having a pilot burner supplied with gas through a solenoidoperated valve 16 and ignited by an electrically heated coil 17 includes a flame detector switch 18 operated by a thermostat or mercury capsule 29 in the path of the pilot flame and a safety switch 20 in the form of a switch which is closed when there is a potential across the pilot valve solenoid coil 15 and is operated by the solenoid armature or the magnetic field of the solenoid coil. Alternatively the switch 20 is a simple relay switch in series or in parallel with the solenoid 15 or an electronic switch such as a thyristor.
Patent GB-1130722-A (GB)
Title: Windward performance meter
IPC: G01P5/00
Filed: 1965-02-15
Abstract: 1,130,722. Measuring speed electrically. R.H. FARRANT and A. A. COLLIE. April 20, 1966 [Feb. 15.1965], No. 6359/65. Heading G1N. [Also in Divisions G4 and H3] The component directly to windward of the speed of a sailing vessel which is beating against the wind is automatically computed from the speed of the vessel through the water (the water is assumed to be motionless) the apparent wind direction and the apparent wind speed. The output signal may be compensated for leeway. An oscillator 11, Fig. 3 (not shown) provides two A.C. signals of equal amplitude but 90 degrees out of phase to energize the stator windings 12a, 12b of a resolver, the rotor 12c of which is movable by a wind direction vane 13 to provide an A.C. signal whose phase relative to the signal in winding 12a is indicative of the apparent wind direction. The amplitude of this A. C, signal is variably attenuated by a modulator 14, Fig. 4 (not shown) in accordance with a D. C. signal derived from a device 15 responsive to apparent wind speed, thus producing a signal indicative of both the apparent wind speed and direction. (Vector Va, Fig. 1, not shown). The signal which is applied to winding 12a is also applied to a modulator 16 (similar to 14) to which is applied a D.C. signal proportional to the speed of the vessel relative to the water measured at 17, thereby providing an A. C. signal of reference phase and of amplitude proportional to speed (vector Vs, Fig. 1 not shown). These two signals, Va and Vs are added vectorially by a transformer 18 to provide a signal proportional in amplitude and phase to the true wind speed and direction (vector Vtw, Fig. 1, not shown). This signal, together with the vessel's speed signal Vs are applied between base and emitter and collector and emitter respectively of a transistor phase sensitive detector 19, Fig. 5 (not shown) which provides an integrated output to a meter 20 proportional to Vs multiplied by the cosine of the angle (#) between the true wind direction and reference phase (which is the vessel's heading), i.e. the component of the vessel's speed directly into the wind, (vector Vmg, Fig. 1 not shown). Leeway correction may be effected by rotating the stator coils 12a, 12b, relative to the vessel's heading either manually by an estimated amount or automatically in response to an underwater vane or by a second resolver. The true wind speed signal Vtw may be detected and amplified at 19' and displayed at 20'. In a modification, the phase sensitive detector 19 and meter 20 may be replaced by an amplifier with automatic gain control to provide a signal of constant amplitude but of phase displacement proportional to true wind direction which signal is applied to a watt-meter together with the vessel's speed signal Vs to again give a reading of the speed into the wind. In another modification, the two speed signals from 15 to 17 may be of variable amplitude A.C. instead of D.C.
Patent GB-869204-A (GB)
Title: Treatment of aluminium surfaces
Inventor: LIPINSKI RICHARD JOSEPH
IPC: C23C22/56
Filed: 1958-02-27
Abstract: The bondability of an aluminium or aluminium-base alloy surface toward organic polymeric material is improved by treating the surface with a nitrosulphonic acid solution containing nitric acid and/or boric acid.  The solution should have a pH of 0.5-4 and should be free of strong acid other than the nitrosulphonic and nitric acids, although it may, if desired, contain the hydrofluoric acid generated by the addition of up to 5% by weight of a fluoride based on the weight of the nitrosulphonic acid. Suitable nitrosulphonic acids (which may be added to the solution as such or as salts) have the formula R(SO3H)n(NO2)m where R is an organic radical, preferably aromatic, and n and m are 1 or more: specific examples are given. Boric acid may be added as such or as a borate.  The solution may also contain a non-ionic wetting agent and an aluminium complexing agent.  The solvent for the solution may be water and/or methanol, ethanol, a glycerol, glycol or glycol ether.
Patent GB-1530729-A (GB)
Title: Earth boring tool bearing seal
IPC: E21B10/22
Filed: 1976-02-18
Abstract: 1530729 Boring earth &c SMITH INTERNATIONAL INC 18 Feb 1976 06441/76 Heading E1F [Also in Division F2] An earth boring tool assembly is characterised by a sealing ring 40 located between the bore of a rotary cutter 20 and the outside diameter of its supporting journal leg 12, the sealing ring comprising an annular metallic core 41 to which are bonded two sealing portions 42, 43 of flexible material which make an interference contact with the leg 12 and the cutter 20 respectively. Various forms of the sealing ring are shown in Fig. 5 and Figs. 7-18 inclusive (not shown). All except Fig. 7 illustrate sealing between concentric cylindrical surfaces; Fig. 7 shows a seal of the rubbing collar type. The metallic core 41 is said to provide stability, independant face loads, and cooling, assisted in some cases, e.g. as in Fig. 12 (not shown) by its exposure to lubricant.
Patent GB-1477127-A (GB)
Title: Triazolocycloalkanthiadiazine derivatives
IPC: C07D249/14
Filed: 1976-02-19
Abstract: 1477127 Compositions containing triazolocycloalkathiadiazines RICHARDSON-MERRELL INC 19 Feb 1976 [28 April 1975] 6511/76 Heading A5B [Also in Division C2] Therapeutic compositions having antisecretory and C.N.S. depressant activity, and in certain cases antiallergenic, antihypertensive and/or anticonvulsant activity, comprise compounds of formula  or their pharmaceutically acceptable acid addition salts, wherein R 1 .... R 4  are each H or C 1-4  alkyl, or R 4  may be O=; R 5  is H, C 1-5  alkyl, CF 3 , C 3-6  cycloalkyl, Ph, C 2-8  alkoxyalkyl or C 7-10  phenoxyalkyl; and A is a sigma bond or -(CH 2 ) 1-7 -. They may be administered orally or parenterally, and can be based on milk or milk solids. They may also contain antacids and acid absorbents such as aluminium hydroxide and magnesium trisilicate, and other C.N.S.-active compounds such as barbiturates, antihistaminic agents, antiemetic agents such as cyclizine and diphenhydramine and ant cholinergic agents such as atropine.
Patent GB-421930-A (GB)
Title: Improvements in and relating to inner layers for composite boards
IPC: E04C2/12
Filed: 1934-03-01
Abstract: 421,930. Composite boards. ODAU, E., 11, Augsbergweg, Andernach-on-Rhine, Germany. March 1, 1934, No. 6614. [Class 145 (ii)] [See also Group X] A core for a composite board comprises strips a assembled side by side, without glueing, and connected together by strips c of rectangular section pressed without glueing into grooves b cut in the faces of the core. The grooves b may be inclined or perpendicular to the length of the strips a. Strips of less depth may be interposed between the strips a so that air passages are formed on both sides of the core. Two or more crossed layers may be used, in which case each layer is provided with connecting strips only on that face which is not in contact with the adjacent layer.
Patent GB-887737-A (GB)
Title: Improvements relating to apparatus and methods for glaze coating paper and the like
Inventor: MACKRIDGE MUIR JAMES
IPC: D21G9/00
Filed: 1959-02-26
Abstract: A method of glaze-coating a web or sheet 6, e.g. of paper, after the sheet has had a molten coating material, e.g. wax, applied thereto, comprises passing the coated sheet between and in contact with endless bands 9, 10 having a smooth, glossy surface, without relative movement between the sheet and the bands which carry the sheet first through a heated zone and then through a cooled zone.  The bands 9, 10 pass round sets of rollers 71 . . . 76, 81 . . . 86 respectively, the first three rollers of each set being <PICT:0887737/III/1> heated and the last three cooled.  Alternatively or in addition, infra red heaters and cooling air may be employed.  The rollers are carried in frames 11, 12, one or both of which may be hydraulically urged or spring-urged towards the other.  The coating material, which may be a microcrystalline wax with or without paraffin wax and polyethylene, is delivered by pipes 3 to the bight 5 between driven heated rollers 1, 2.  The surfaces of the rollers 1, 2 may be covered by an absorbent material.  One side only of the sheet 6 may be coated, and liquid-level control means may be provided.  In a modification, Fig. 4 (not shown) the heated and cooled zones each have a separate pair of endless bands.  Examples of suitable band materials are given, and the bands may be prepared to produce graining or embossing of the coating.  In the first described embodiment, a graduated temperature range may be provided through the apparatus, e.g. by providing each roller 71 . . . 76, 81 . . . 86 with temperature control means.
Patent GB-589168-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/12
Filed: 1945-03-16
Abstract: 589,168. Chucks. AKTIEBOLAGET F. RAMSTROM, and AXELSSON, J. A. March 16, 1945, No. 6652. [Class 83 (iii)] In a chuck for drills &c., operable whilst rotating, three interlocking jaws 8 are actuated by a conical portion 7 of the sleeve 1 which is moved axially on the body 3 by rotation on the thread 5. A torsion spring 6 is attached at its ends to the body and sleeve and tends to rotate the sleeve into the lowermost or open position. In operation, with the chuck rotating, a ring 19, with two skirts 20 and 21 and rotatable on the body, is braked by hand, causing the skirt 20 to move rollers 25 to the unlocking position in cam surfaces 26, Fig. 2, on a ring 27 attached to the body and allowing the spring 6 to move the sleeve 1 to the lowermost position ; a bentup, resilient ring 33 minimizes the impact. After inserting the tool between the jaws, the sleeve 1 is also braked causing it to move upwardly and close the jaws. When the tool is gripped, the sleeve 1 and ring 19 are released and a torsion spring 28 rotates the ring 19 so that the skirt 20 wedges the rollers 25 between the cam surfaces 26 and the sleeve 1, thereby locking the sleeve in its adjusted position. A pin 23 on the body limits rotation of the ring 19. The spring 6 may act on the sleeve 1 by axial pressure only or may be omitted if the pitch of thread 5 is sufficiently coarse to allow the sleeve to descend under gravity. With increased axial working pressure, the tool bears on the valve-shaped member 14 and imparts a downward pressure to the upper surfaces of the jaws 8 through balls 18 and a pressure ring 9, thereby increasing the gripping action of the jaws.
Patent GB-721554-A (GB)
Title: Anti-dazzle device, more especially for motor vehicles
IPC: B60J3/02
Filed: 1952-03-14
Abstract: 721,554. Anti-dazzle devices. STREHLE, L. March 14, 1952 [March 15, 1951], No. 6704/52. Class 103 (2). [Also in Group XXXVII] A movable anti-dazzle device for a vehicle comprises a colour filter having a light absorption diminishing from the upper edge to the lower edge and a polarizing filter. The filter comprises a glass or resin plate 1 clamped by plates 4, 5 secured by rivets 6 which may constitute pivots 17, 18 referred to later. A polarizing screen 3 and a light subduing screen 2, having a light absorption diminishing from the upper to the lower edge, are mounted adjacent the plate 1 by hooks 7. The plate 1 is mounted by the pivots 17, 18 on arms 15, 16 pivotally mounted at 13, 12 to the frame 10 of a vehicle windscreen. The distance between the pivots 17, 18 is less than that between pivots 13, 12, of which 12 is higher than 13, so that when the filter is swung from the position shown by full lines to the position 1<SP>1</SP> it will be rotated so that one mitred end of the filter fits in a corner of the windscreen, the path followed by the filter approximating to the movement across the windscreen of dazzling light rays from an approaching vehicle. The arms 15, 16 are each a self-rigid band rolled on a drum round the appropriate pivot and one or two motors driven in synchronism may rotate the drum to extend or contract the arms 15, 16. The motor or motors actuating the arms 15, 16 are controlled by a switch (see Group XXXVII) mounted on the steering column. The members 15, 16 may be telescopic rods.
Patent GB-935083-A (GB)
Title: Improved automatic vent head for tanks
Inventor: SLINGSBY WALTER
IPC: F16K24/04
Filed: 1959-02-27
Abstract: 935,083. Valves. WALTER SLINGSBY & CO. Ltd. Feb. 26, 1960 [Feb. 27, 1959], No. 6909/59. Class 135. A vent head for relieving internal pressure in tanks comprises a body 2, a plate valve 7 normally resting on an annular seat 6 formed on a hollow member 5, the valve being mounted for axial movement and raisable automatically from its seat by the internal pressure, means 8, 13 for manually raising the valve, a shroud 10 and a protective element comprising or furnished with a mesh 16 lying within the hollow member in such a manner that the only fluid connection between the body and the valve-controlled top of the hollow member is through the mesh. The body 2, which is threaded at 3 for mounting on a tank containing, e.g. a volatile liquid, is provided with a lug 12 for mounting the shroud 10 and lugs 4 for securing a cylindrical member 5 forming the seat 6, the wire mesh screen 16 being clamped between the member 5 and the body; the wire mesh may be arranged to cover ports formed in a liner clamped between the member 5 and the body. The plate valve may be lifted manually by a rod and handle 8, 13, the valve being maintained in the open position by passing a pin through a hole 14 in the rod. In alternative arrangements for maintaining the valve open, a pin may be fixed in the bearing boss 9 of the shroud and engage with a vertical slot formed in the rod 8, or a lever may be pivoted on the shroud and engage with a horizontal slot formed in an end cap secured to the rod, or as shown in Fig. 4, a disc may be secured to the rod 8 and have a pin 34 co-operating with a cam-face 35 formed on the shroud. A wire mesh may additionally be located in or at the bottom of the shroud. Specification 679,042 is referred to.
Patent GB-176249-A (GB)
Title: A new and improved wall tie
IPC: E04B1/41
Filed: 1921-03-03
Abstract: 176,249. Green, W., and Dean, J. H. March 3, 1921. Wall-ties.-A wall-tie is made from a metal strip by folding it along the lines a and then along the lines b, c, so that a vertical central web 1 is formed terminating in vertical transverse wings 3. The flat horizontal portions 2 may be provided with tongues 8 along the centre or on the edges, serrations 6 may be made on the web 1, and the end 10 may be beaded or turned over to engage a bonding bar. In a modification, the parts 2 are narrower than the rest of the strip so that the web 1 projects below the bed joint.
Patent GB-525921-A (GB)
Title: Improvements relating to brushes
IPC: A46B5/00
Filed: 1939-03-03
Abstract: 525,921. Brushes. LENG, A. C., and LENG, A. S. March 3, 1939, No. 6969. [Class 19] A brush has a flat member c in which the bristles are inserted secured to a backing a by thin flanged metal bushes d. If desired, additional means of fixing may be employed such as adhesive or screws or nails. The upper end of the bush d may be tapered or reduced and expanded after insertion by a screw g.
Patent GB-608927-A (GB)
Title: Improvements in or relating to the smelting of copper
IPC: C22B15/06
Filed: 1946-12-02
Abstract: A process for smelting high-grade copper matte of the type wherein a charge of matte in a molten state is blown with air in a furnace and carbonaceous or gaseous fuel is introduced into the furnace, is characterized by the steps of rapidly raising the temperature of the charge of matte during the first stage of the blow, which ends when free metallic copper first forms, by adding and burning fuel in adequate quantity above the charge of molten matte so as to decrease the bismuth content of the charge of matte below the level attainable by blowing without such fuel, and thereafter blowing the molten matte with air without further introduction of the fuel until conversion to metallic copper is complete.  The fuel introduced may consist of pulverized coal or coal dust or may be an oil fuel.
Patent GB-535555-A (GB)
Title: Improvements in or relating to transmitter pumps for liquid pressure remote control systems
IPC: F01B3/00
Filed: 1940-04-18
Abstract: 535,555. Reciprocating pumps. COATALEN, L. April 18, 1940, No. 7034. Convention date, May 5, 1939. [Class 102 (i)] A transmitter pump for a liquid-pressure remote control system comprises a swashplate which reciprocates pistons 34 in a number of cylinders 31 arranged parallel to a driving spindle 12 and provided with outlets 32, 33 to deliver pressure liquid to one or other of a pair of pipe lines 26, 27 depending upon the direction in which the spindle is turned. In the form shown, the outlets 32, 33 register with a pair of slots 28, 29 which extend for nearly 180 degrees around opposite sides of a fixed sleeve 20, and with annular grooves 22, 23 communicating with bosses 24, 25 for the pipe lines 26, 27. The cylinders 31 are formed in a rotor 30 and contain return springs 38 for the pistons and non-return valves 35 for working liquid which is introduced under pressure from a reservoir by means of a pipe 18. The end spaces 17, 52 are connected by a passage 53 and an axial bore 54 in the rotor 30. The swashplate comprises a fixed cam 39, balls 47 in a cage 48, and a plate 46 with recesses to receive balls 45 carried by the ends of the pistons so as to rotate with the rotor. The spindle is actuated by a handle 14 on a flywheel 13, and the pump casing 10 is fitted with a pair of spring- loaded blow-off valves in communication with the grooves 22, 23 and leading back to the supply reservoir.
Patent GB-630220-A (GB)
Title: Improvements in electronic point inspection
IPC: G01N27/90
Filed: 1947-03-13
Abstract: 630,220. Magnetic tests and measurements. MAGNETIC ANALYSIS CORPORATION. March 13, 1947, No. 7046. Convention date, May 21, 1946. [Class 37] [Also in Groups XL (b) and XL (c)] Apparatus for testing magnetic materials 45 by analysis of the waveform of a voltage in a secondary winding 5, or opposed secondaries 5a, 5b, of a transformer after introducing a sample of the material into the field of the transformer comprises means for impressing the signal voltage between the anode and cathode of a valve 8 which is rendered conducting for an :instant in each cycle of the signal wave by a pulsating bias voltage which is adjustable in phase and amplitude to enable different portions and amounts of the signal wave to be examined. The bias is derived from the same source as the signals via a phase-shifting network 35 ... 40 (see Group XL (b)), adjustable through about 200 degrees, amplifier 34 and rectifier 31, the output of the latter being applied across the grid resistor of valve 8 in series with an adjustable voltage from a potentiometer 32. By virtue of a parallel circuit through an oscillograph 10, the signal wave is also developed across resistance 9, and this together with the pulses produced at the instants when valve 8 is conducting are rectified by valve 11, which is supplied with an adjustable negative bias on the anode to obtain a variable base line, amplified by valve 15, and further rectified by full-wave rectifier valve 19 to be impressed on the grid of valve 22, which is paired with a similar valve 25, whose anode current is adjusted by potentiometer 27 to that of valve 22 when not receiving any signal voltage, as shown by a meter 26 connected between a resistance 23, 24 in each anode lead. Thus after adjusting potentiometers 13, 27 and 32, a signal voltage in transformer winding 5 may be analysed by varying the phase of the bias voltage on the grid of valve 8, and noting the corresponding readings on meter 26. The oscilloscope 10, supplied with power from the common A.C. source 1 so that the time base is synchronized with the signal voltage, may be connected to indicate the voltage waveform at different parts of the circuit, and as shown indicates the position of the portion of the wave selected for showing on meter 26 in relation to the wave at 5.