baber/WOPTO huggingface dataset:
Patent GB-1306712-A (GB)
Title: Steering mechanisms
IPC: B62D5/24
Filed: 1970-01-27
Abstract: 1306712 Power assisted steering A E BISHOP 27 Jan 1970 [3 Feb 1969] 3992/70 Heading B7H A power assisted steering assembly includes a variable ratio steering gear consisting of an hour-glass worm 25 connected to the steering shaft 11, and a worm follower 29 mounted on a cross-shaft 13 which is connected to the pitman arm (not shown) of the steering linkage. The cam track in the worm 25 is shaped to provide a high ratio in the on-centre, or straightahead, condition which decreases as the steering- wheel is turned. The follower 29 (Figs. 2, 13) is rotatably mounted on an axle 28 which is supported at one end by a surrounding ear formed on the cross-shaft 13. The other end of the axle 28 is mounted in a bush 28b which is seated in a semi-cylindrical recess formed in the crosa-shaft 13, the bush 28b being formed with a shoulder to provide axial thrust support. Tha follower 29 consists of a roller which is supported axially by bearings 28d, 28e and which is rotatably mounted on an eccentric sleeve (not shown) on the axle 28. The eccentric sleeve is connected to a worm-wheel 29d whicn can be rotated by worm 29e. Rotation of the worm 29e thus moves the follower 29 towards and away from the worm 25 so that the alignment of the worm 25 and follower 29 can be adjusted. Power is applied to the cross-shaft 13 (Fig. 3) by an hydraulic piston 41 and cylinder 40, the piston 41 being connected to a rack 42 which meshes with a gear segment 43 on the crossshaft 13. The gear teeth 42a, 43a have a varying ratio so that the torque supplied to the crossshaft 13 increases as the wheels are turned from their on-centre position. Ideally the torque supplied to the cross-shaft matches the torque required to turn the wheels when the vehicle is stationary. The supply of fluid to the cylinder 40 is controlled by a rotary steering valve 23 (Fig. 2) including a torsion bar coupling 26. (For Figures see next page)
Patent GB-1368281-A (GB)
Title: Adaptor assemblies for connecting a master cylinder to a reservoir
IPC: F16L41/08
Filed: 1971-02-05
Abstract: 1368281 Pipe couplings GIRLING Ltd 21 Jan 1972 [5 Feb 1971 4 March 1971 10 July 1971] 4099/71 6073/71 and 32483/71 Heading F2G A tubular insert 48 is anchored in resilient bush 43, by means of an enlarged head 49, formed with radial openings. The insert 48 may be moulded from nylon and the bush 43 made of natural or synthetic rubber. The bush has sealing grooves 44 and 50 to enable it to interconnect the inturned rims of recesses 51 provided, e.g. in the master cylinder of an hydraulic braking system and in a reservoir of hydraulic fluid.
Patent GB-109581-A (GB)
Title: Improvements in Lathes.
Inventor: SLOTNAES JENS
IPC: B23B3/06
Filed: 1917-03-21
Abstract: 109,581. Slotnaes, J. March 21, 1917. Lathes.-Screw-cutting lathes have the usual back shaft replaced by a lead-screw of metric pitch if the usual lead-screw is of English pitch, and conversely.
Patent GB-688039-A (GB)
Title: Improvements in or relating to gas-filled discharge tube circuits
Inventor: RIDLER DESMOND SIDNEY
IPC: H03K29/00
Filed: 1950-02-17
Abstract: 688,039. Pulse circuits. STANDARD TELEPHONES & CABLES, Ltd. Feb. 16, 1951 [Feb. 17, 1950], No. 4141/50. Class 40 (vi). In a gas-filled sequence tube having an array of anode / cathode gaps in which applied pulses cause a single discharge to travel in succession along the gaps, the cathode potential of a discharging gap is maintained substantially constant until the next gap in the array commences to conduct. In this way a higher speed of operation is obtained. The Figure shows a portion of a counting or frequency divider multistable-state circuit comprising a sequence tube having an anode A, cathode arrays of which only cathodes K1, K3 are shown and a transfer electrode array of which only electrode K2 is shown. The train of negativegoing pulses to be counted is applied at terminal P to the transfer electrode K2 and after phasereversal in transformer T1 to block the rectifiers M1 and M2. If initially the gap A/K1 is discharging then an input pulse causes gap A/K2 to break down, which extinguishes gap A/K1 by reason of the common anode resistor R3 but capacitor C1 is unable to discharge through resistor R1 whilst rectifier M1 is blocked during the incidence of a pulse at P. When the first pulse of the train ceases the discharge across gap A/K2 is extinguished and passes to gap A/K3, the time constant R2, C2 being made short so that the potential across the gap rises very rapidly and reaches its maximum value before the arrival of the next incoming pulse at P. Thus due to the blocking of rectifiers M1 M2, &c., the cathode networks R1, Cl; R2, C2, &c., may be given very short time constants, thus enabling a high input pulse repetition frequency to be handled whilst maintaining the cathode potential of any cathode, say K1, constant until the next gap A/K2 commences to conduct. Outputs may be derived at terminals O1 and 02. In a modification transformer T1 is omitted and a train of positive-going pulses coincident in time with those at the input P are applied to block rectifiers M1, M2, &c.
Patent GB-1178306-A (GB)
Title: Improvements in or relating to Pressure-Reducing and Regulating Valves with Dual Safety Means.
IPC: G05D16/06
Filed: 1967-01-27
Abstract: 1,178,306. Valves. CLESSE-SOC. D'EXPLOITATION DES ATELIERS DU PECQ. 27 Jan., 1967 [28 Jan., 1966], No. 4188/67. Heading F2V. A gas governor -comprises a gas valve M actuated by double diaphragm device R in response to the outlet pressure. The outlet pressure normally acts on the lower diaphragm 38 which is coupled to the valve member 20 through lever 21. This pressure is taken through passage 43 from the space round a sleeve 19 so as to compensate for variations in the flow rate. The lower diaphragm is loaded through a force multiplying linkage 53. by a spring 50 which bears directly on the upper diaphragm. The space between the diaphragms is open to atmosphere through a restriction 42 and the upper diaphragm is open to atmosphere through a screened vent 40. In the event of rupture of the lower diaphragm, the outlet pressure is effective on the upper diaphragm and since the effect of the linkage is removed, the outlet pressure is controlled at a lower value and indicates the failure. Similarly, in the event of a leaky valve, the lower diaphragm is raised on closure of the valve to open an auxiliary valve 61, 62 into the intermediate chamber and the outlet pressure is again reduced.
Patent GB-555841-A (GB)
Title: Improvements in or relating to light reflecting devices
IPC: G02B5/126
Filed: 1942-03-30
Abstract: 555,841. Reflex lights. FRANCO-BRITISH ELECTRICAL CO., Ltd., and BRACKENSEY, A. H. March 30, 1942, No. 4213. [Class 97 (i)] A series of projections is formed upon the back of a reflex light and of such length as to extend beyond the reflecting medium applied to the back ; the projections may be of cylindrical or conical form and be distributed over the back surface, or may extend, as shown, as spaced projections 7 forming a castellated wall around the margin of the light. The reflecting medium 6 may be protected by a layer of bituminous composition &c. held in place by a cylindrical ring having a flange extending over the front face and claws turned over, between the projections, to engage the back of the layer. Fig. 5 shows a light having convex front and rear surfaces, and a reflector in the form of a metal plate 6 secured by claws 18 bent over the front of a flange 17, or secured by a backing plate having claws similarly bent over. The claws may be housed in flat-based recesses in the flange so as not to extend beyond its periphery, and may have parallel side edges ; when formed on a backing plate, the bending of some of them may be omitted so that they extend radially and facilitate assembly of the reflex light on to a support.
Patent GB-1240448-A (GB)
Title: Pulse width discriminator circuits
IPC: B61L1/16
Filed: 1970-01-29
Abstract: 1,240,448. Transistor pulse width discrimiriators. INTERNATIONAL STANDARD ELECTRIC CORP. 29 Jan., 1970 [31 Jan., 1969], No. 4238/70. Heading H3T. A pulse width discriminating circuit more particularly discriminating against noise in railway axle counters, comprises an amplitude threshold circuit. SS having complementary outputs feeding respective set and reset inputs of a bi-stable circuit. BK through integrator type delay circuits C1, C2. When the input signal El exceeds the threshold of the Schmidt circuit SS, A2 becomes non-conducting and C1 charges through R1. If the signal is sufficiently long, the bi-stable circuit BK is switched over to produce an output at A3 and A4. At the end of the signal A1 becomes non-conducting and C2 commences to charge, the bi-stable circuit thus being restored if the signal is off long enough. D3 and D4 permit the capacitors to discharge rapidly when the associated transistor A1 or A2 becomes conductive and D1 allows the capacitors to completely discharge. The two time delays may be equal.
Patent GB-502383-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J19/00
Filed: 1938-02-10
Abstract: 502,383. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIFKEN. Feb. 10, 1938. No. 4241. Convention date, Feb. 13, 1937, [Class 39 (i)] In electron-discharge devices, the stream of electrons is formed into a beam or a plurality of non-intersecting beams so that at each point in the cross-section of the beam the velocity and direction of the electrons is the same, and an electrode, such as a control grid, which is interposed in the path of the beam is so constructed that its action at each point over the width of the beam as a whole is determined by the velocity of the electrons perpendicular to the surface of the electrode. Fig. 1 shows a hexode arrangement in which the electron stream is produced by an indirectly heated cathode 1 and grid 3 and is formed into one or more beams by passing through apertures in an accelerating electrode 2. A control grid 6 and screen grid 7 are interposed between the beam and anode 5. The control grid is set askew to prevent repelled electrons being returned to the cathode, and the screen grid is disposed in diverging relation with the control grid so that the distance between them is greatest where the velocity of the electrons perpendicular to the control electrode is greatest. In the octode arrangement shown in Fig. 2, the intermediate grids 8, 9 are arranged so as to provide the same relationship. Alter. natively, the grid when formed as a mesh has apertures of graded size. In the arrangement shown in Fig. 2, the source of electrons includes the additional electrodes 4 which coact with the electrode 3 as a local oscillator. Fig. 3 shows a diode device with an accelerating electrode 2 in which the anode 5 is so shaped that all the electrons impinge on it at right-angles.
Patent GB-193403-A (GB)
Title: Improvements in machines for the cleansing of the bottom and sides of floating ships
IPC: B63B59/08
Filed: 1923-02-14
Abstract: 193,403. Arentz, H. Feb. 16, 1922, [Convention date]. Hulls, cleaning.-In machines for cleaning ships' hulls of the kind comprising a turbine driven rotating brush 2 formed on the exterior of a cylindrical air container 1 serving as a buoyancy member, the size of the container and hence of the brush is kept within reasonable limits by the provision of an auxiliary buoyancy chamber 5. The turbines 3 driving the brush are arranged at either end of the spindle and the reaction of the discharged pressure water presses the brush against its work. The gearing driving the brush are enclosed in casing 4 serving as supports for turbines and are provided with fittings for branch pipes for pressure water passing to the turbines.
Patent GB-1278202-A (GB)
Title: Vehicle air conditioning system
Inventor: COYLE JOHN CADDEN
IPC: B60H1/00
Filed: 1970-01-29
Abstract: 1278202 Motor vehicle air conditioning systems ROLLS-ROYCE Ltd 19 Jan 1971 [29 Jan 1970] 4413/70 Heading F4V [Also in Division G3] A vehicle air conditioning system comprises an air intake 15 for fresh and/or recirculated air, an evaporator 22, a fan 24, a heater 26, heater by-passes 27, two air mixing chambers 30 each having a control flap 31 and communicating with the heater 26 and a respective by-pass 27, and outlet ducts 33, 34 including flaps 35 connected respectively to outlets in the lower and upper zones of the vehicle passenger space, the flaps 31, 35 being automatically controlled in unison by an electronic control system in response to temperature sensors in the ambient air, ducts 33, 34 and the passenger space. The fan speed, an intake control flap 20, a flap 45 proportioning the air flows to windscreen and facia outlet ducts 41, 42 and a coolant valve for heater 26 are also controlled automatically. The fan is prevented from starting in cold weather until the engine coolant temperature has risen sufficiently.
Patent GB-1464664-A (GB)
Title: Drying machines and control apparatus therefor
IPC: D06F58/38
Filed: 1975-01-31
Abstract: 1464664 Controlling drying apparatus BOSCH-SIEMENS HAUSGERATE GmbH 31 Jan 1975 [31 Jan 1974] 4415/75 Heading F4G An apparatus for controlling the operation of a laundry tumbler drier by detecting the moisture content of material being dried, comprises electrodes 11, 12, 21 connected to the input of an electric circuit which controls a switch 33, the electrode-circuit combination detecting, at 10, the electrical conductivity of the linen, and at 20, its electrostatic charge. The circuit 10 preferably operates the switch 33 when the moisture content is about 20% and the circuit 20 when it is nearly 0%, a multi-pole change-over switch 40 selecting the appropriate circuit. In a modified circuit Fig. 2 (not shown) a multi-pole change-over switch (45) allows the electrode 21 to measure both the conductivity and the charge, electrodes 11, 12 being dispensed with and the drying drum (46) forming the other electrode. Percentages are by weight of dry material.
Patent GB-1259923-A (GB)
Title: Method of treating semiconductor devices
IPC: H01L21/00
Filed: 1970-01-29
Abstract: 1,259,923. Semi-conductor devices. SIEMENS A.G. 29 Jan., 1970 [31 Jan., 1969], No. 4422/70. Heading H1K. A semi-conductor device comprising a body of semi-conductor material, a PN junction and a dielectric layer is subjected to a dose of radiation incident on the dielectric layer and penetrating into the body, and subsequently electrically loaded so as to raise the junction temperature to between 50 and 250 C., the irradiation and loading being repeated. The radiation may be electron, X, or gamma radiation. An embodiment may be a silicon transistor with a silicon dioxide dielectric layer. During irradiation, which dose may be from 10<SP>4</SP> to 10<SP>9</SP> rads, the electrodes of the transistor may be shortcircuited. The electrical loading must be carried out in the absence of radiation, the emitter base junction being forward biased, the collector base reverse biased, although alternatively loading may also take place during radiation in addition to the normal loading. The irradiation causes the current gain, i.e. collector/base current, to decrease, a state which subsequent loading remedies. A series of radiation and loading operations may be made, the final current amplification being greater than the original. The device is said to be protected against future in-service radiation.
Patent GB-1074861-A (GB)
Title: Improvements in tin-lead base solders
IPC: B23K35/26
Filed: 1965-02-02
Abstract: A wiping solder consists of .Sn 1.- 35% .Te and/or.Se   - 0.5% ..Pb the remainder The alloy may also include 0.02 - 0.5% Cu and known amounts of Ag, Cd, Hg, In or Bi.
Patent GB-585569-A (GB)
Title: Preparation of oxides from halides
IPC: C01F7/302
Filed: 1942-04-03
Abstract: The oxides of metals other than titanium are obtained by the process of the parent Specification according to which the oxide is obtained by reacting a halide with oxygen at a high temperature under conditions (provided by the opposition of a jet of vaporized halide to a current of oxygen containing gas) such that formation of the oxide occurs out of contact with heated surfaces of the apparatus. Metals mentioned are aluminium, zinc, antimony, zirconium, chromium, cobalt, beryllium, cadmium, molybdenum, nickel, vanadium, lead, bismuth, boron and silicon are also included.  Mixed oxides, including titanium oxide, suitable for pigments may be obtained by reacting the halides of more than one metal as described. Specification 535,214 is referred to.
Patent GB-164804-A (GB)
Title: Improvements in and relating to machines for lasting the uppers of boots and shoes
IPC: A43D21/12
Filed: 1920-02-14
Abstract: 164,804. Denne, M. T. Feb. 14, 1920. Lasting.-In a lasting-machine in which the wipers are moved by power, a pedal control is provided for the connections between the wiper plates and the power shaft, the control being so arranged that the plates may be moved in one or any number of successive stages with a force that may be increased at any desired rate from zero to a maximum, and at any stage returned or partially returned to their initial position. As shown, the last is supported on an adjustable toe-rest 27, Fig. 1, which may be tilted inwardly, out of the way, about a pivot, and a heel post 15 on a slide clamped by a hand-wheel 12 in any position along are-shaped guides 7, and has an adjustable heel-clamp 13. Wiper plates 51, Fig. 8, are moved by aT-headed plunger 67 normally held back by a spring 69, the plates being guided by slots 64, 65 in top and bottom guide-plates engaging rollers 66 on pins secured in the plates 51. The wiper plates are moved over the shoe by a lever 72, Fig. 1, actuated by a push-bar 74, which is itself operated by a crank 78, Fig. 9, moving with a spurwheel 83 meshing with a pinion 85 connected to one member 92 of a friction-clutch, the other member of which is driven by a pulley 90. A pedal-operated wedge 96 determines the pressure between the clutch members 92, 93, and therefore the force acting on the wiper plates. A pawl 91 connected by a friction clutch 101, 102 with the clutch-operating rod 97 holds the wheel 83 and therefore the wiper plates, in the position to which they have been advanced when the rod 97 is moved more than sufficient to fully disengage the clutch 92, 93. If the rod 97 is moved only sufficient to disengage the clutch 92, 93, a spring 114 returns the parts to their initial position. The push-bar 74 carries an adjustable incline which engages a stem 27<a>, Fig. 1. supporting the wiper plates to lift them. during their advance. A camoperated hold-down may engage the tread surface of the last, and may be slid aside when not required. The machine carries a reel of binding- wire.
Patent GB-1027826-A (GB)
Title: Spectrophotometer
IPC: G01J3/44
Filed: 1964-02-04
Abstract: 1,027,826. Spectrometers. BECKMAN INSTRUMENTS. Inc. Feb 4, 1964 [Feb. 26, 1963] No. 4605/64. Heading G2J. [Also in Division G1] Radiation from a source 10 is analysed by a monochromator 13 and the emergent radiation directed to a cell holder 15, containing two cells 43,40, by means of a rotating half mirror 14 directing the radiation to each cell alternately. Stimulated emission from the cells 43, 40 is analysed by another monochromator 18 and the emergent radiation falls on a detector 19 and is converted into electrical impulses and recorded on a chart. The impulses from the reference beam may be used to control the width of the slits of either of the monochromators thus establishing a constant energy reference beam.
Patent GB-450651-A (GB)
Title: An improved frit kiln
IPC: F27B17/00
Filed: 1936-02-15
Abstract: 450,651. Frit kilns. EMERY, J. W., Grange Street Colour Works, Cobridge, Staffordshire. Feb. 15, 1936, No. 4638. [Class 51 (ii)] A kiln or furnace for melting frit comprises an open-ended heating-chamber adapted to receive a truck or hearth b, which is sealed, when in position, by a protruding ledge a<4> on the walls of the chamber co-operating with a recess b<4> at the upper edge of the truck, a rear burner c, and superposed exhaust flues a<8>, a<10>, in the upper of which is a pipe c<1> supplying air to the burner. In the walls of the chamber below the ledge a<4> are openings for the entry of cooling-air for circulation around the body of the truck, at the front of which is a platform b<5> covered with firebrick b<6>, and a manipulating handle b<7>.
Patent GB-276570-A (GB)
Title: Improvements relating to temperature indicating devices
IPC: G01K1/14
Filed: 1927-02-18
Abstract: 276,570. White, A. E., (Passman, P. C. C.). Feb. 18, 1927. Thermometers. - A thermometer, particularly for measuring the temperature of the cooling water in an internalcombustion engine comprises a bulb 3 which is inserted in a hole 2 in the water conduit 1, the hole being sealed by an expansible plug 4 of rubber &c. The bulb is formed with a threaded portion 5 of reduced diameter, forming a shoulder 6 at its junction with the main part of the bulb. The plug 4 is compressed between this shoulder and a nut 7 engaging the threaded part 5. The nut has an extension 10 protecting the capillary tube 11 which connects the bulb 3 to an indicator.
Patent GB-637701-A (GB)
Title: Load bars for hoists
IPC: B66D3/26
Filed: 1948-02-17
Abstract: 637,701. Pulley hoists. COLUMBUS McKINNON CHAIN CORPORATION. Feb. 17, 1948, No. 4657. Convention date, Aug. 9, 1947. [Class 78 (v)] In a suspended standard hoist or puller of the kind in which the capacity is increased by attaching to it a bracket supporting pulley tackle, the bracket is inserted in a recess which is near the top of the casing containing the hoisting mechanism. The recess 13 extends across the casing 10 and its top has an aperture 14 to receive the shank 15 of the suspension hook 16 when used as a single reeving hoist. The bracket 21 has a threaded opening 23 to receive the bolt 24 by which it is secured to the casing. A bushing 25 is inserted in the aperture 14 when the diameter of the bolt is less than that of the shank of the hook. The outer end of the bracket has an opening 34 to receive the shank 15 when the hoist is used as a double reeving one. The chain 33 is secured by a pin 31 to the bifurcated end 30 of the bracket.
Patent GB-946446-A (GB)
Title: Molding device
IPC: A22C7/00
Filed: 1960-02-10
Abstract: 946,446. Rotary-table moulding-machines. HOLLYMATIC CORPORATION. Feb. 10 1960 [March 31, 1959], No. 4664/60. Heading B5A. Apparatus for moulding meat to form articles such as meat patties comprises an intermittently rotatable mould table 59 having four mould openings 60, a base plate 58 and cam plates 44 and 45, Fig. 8, which are continuously rotatable, and a hopper 48 having a bottom opening 49 and containing a pair of feeders 51, 50 which are mounted on shafts 55, 54 and are oscillated by a reciprocable rack gear 70, Fig. 2, which engages spaced gears 69 mounted on shaft 66, 64 connected by couplers 65, 62 to the shafts 55, 54. The continuous rotation of plate 38 is transformed into intermittent 90 degree movements of a crank plate 95, a tube 89, and the mould plate 59 by means of cams 105 and a vertically movable arm 99 having a cam follower portion 103, Fig. 81. With a mould opening 60 below hopper opening 49 and the plate 59 held by a brake, Fig. 9 (not shown), a cam follower 87 travels in a track 46 between the plates 44 and 45 and reciprocates a pipe 80, a shaft 77, and rack gear 70, so that feeders 50, 51 are oscillated; the closing movement of the feeders being relatively fast owing to the slope of the track 46. The filled mould opening 60 is next indexed above a stack of separator sheets on a vertically movable platform 138, Fig. 3, which is raised to stick a sheet on the bottom of the meat, and then below a knock-out member 119 which is lowered when the cam follower 126 drops down section 151 of cam plate 44. The mould plate 59 may be replaced by one of a different thickness. Specifications 697,759, 725,830, 946,447 and U.S.A. Specifications 2,530,061 and 2,787,808 are referred to.