baber/WOPTO huggingface dataset:
Patent GB-1471210-A (GB)
Title: Propeller mower apparatus
IPC: A01D34/86
Filed: 1974-12-23
Abstract: 1471210 Self-propelled mower LEHARA EQUIPMENT CO INC 23 Dec 1974 [9 Jan 1974] 55552/74 Heading A1F A propelled mower comprises an all terraine vehicle e.g. ATV 10 having separately driven tracks 11 riding upon bogie wheels 15 and driven by sprockets 14, shock absorbers 40 being provided between the vehicle frame and front bogie wheel 15, side rails 16 are rigidly secured to the frame and L-shaped brackets 17 are attached to them by means of bearing joints 18 which permit the L-shaped brackets to tilt about an axis longitudinal of the direction of vehicle motion and pivot about a lateral axis. A flail mowing head assembly 20 is attached to the front ends of the L-shaped brackets via members 21 and pivots 22 extending in the direction of travel. The mower head assembly comprises a hood, a ground engaging roller 75 made of elastomeric material, and a flail cutting cylinder 60 driven via pulley 25 and belt 26 either directly from the ATV engine or by a separate power source. Cutting flails 70 are mounted on the cutting cylinder 60, those 71 nearest the bearing 66 having a member 72 attached to them to prevent build-up of cut vegetation about the bearing 66. Each L-shaped bracket has a support section 28 welded to it or integrally formed therewith extending from the top of the bracket to the side thereof. A hydraulic jack is secured between joint 30 on the L- shaped bracket and a back pivot point 32 on the rail 16 to which pivot point is also attached a steel spring assembly 35. The jack serves to raise and lower the mowing head while the spring assembly 35 permits the head to 'float' according to ground contours, the particular arrangement of the parts of the mower results in the load being taken by the vehicle such that the mowing head does not plough into the ground when working on steep inclines or over rough ground.
Patent GB-1377633-A (GB)
Title: Telescope including an imaging system for visible radiation
IPC: H01J31/50
Filed: 1971-11-30
Abstract: 1377633 Temperature sensor PHILIPS  ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Nov 1971 [3 Dec 1970] 55562/71 Heading G1A [Also in Division H4] A combined visual and infrared telescope system includes an infrared detector 8 which controls a light source 9 to produce, in response to detection of an object in the centre of the field of view which differs in temperature from its surroundings, a spot (or short line) in the centre of the image viewed through an eye-piece 5. Visible radiation passes through a spherical aberration correction plate 3 and is reflected by mirrors 1, 2 on to the photo-cathode 12 of an image intensifier tube 4. To detect when the temperature of an object in the centre of the field of view differs from that of its surroundings mirror 7 may oscillate through a small angle to linearly scan part of the field of view, a short line then being produced by light source 9 and oscillating mirror 7 in response to such detection; alternatively a second "reference" infrared detector may be provided. In a second embodiment the infrared detector (15), Fig. 2 (not shown) and at least one reference detector are placed in front of correction plate 3 which carries a dichroic coating (17) which reflects infrared radiation and transmits visible radiation. The light source (18) is placed after the image intensifier tube and directs light on to the viewing screen of the image intensifier tube. In a modification of this embodiment Fig. 3 (not shown) the correction plate 3 and the mirrors 1, 2 are formed on a single block of material transparent to visible radiation. In a further embodiment the infrared detector and reference detector are mounted in the centre of a plate (3), Fig. 4 (not shown) acting as the spherical aberration correction plate, both visible and infrared radiation being reflected by concave mirror 1 to plane mirror 2 which is coated with a dichroic reflecting layer (27) which transmits the infrared radiation to the detectors and reflects the visible radiation to the image intensifier tube; the light source is again placed after the image intensifier tube. The telescope system may be used as a gunsight and with suitable filters may be used to detect camouflaged hot objects in daylight.
Patent GB-1369038-A (GB)
Title: Method and apparatus for determining the explosibility of a gaseous medium
IPC: G01N25/54
Filed: 1971-12-01
Abstract: 1369038 Determining explosibility of gaseous medium electrically INDUSTRILABORATORIET AB 1 Dec 1971 [2 Dec 1970] 55740/71 Heading G1N In order to determine the explosibility of a gaseous medium, the medium is placed in a probe including an ignition igniter and the energy of the igniter is increased until ignition of the medium takes place, the energy or temperature level at which the medium ignites being measured to provide a measurement of the explosibility. In a first arrangement a pulse from a pressure spark gap 7 energized by adjustable high voltage source 1 is applied to a spark gap 13 in probe 6. The energy of the pulses are increased until ignition of the gas being tested takes place as indicated at 6, 12, and the magnitude of the igniting pulse measured by oscilloscope 10 and capacitive voltage divider 11. The probe 6, Figs. 2, 3 (not shown) is in the form of a right circular cylinder provided with apertures spaced circumferentially around the cylinder which are covered by a mesh smaller than the quenching distance of the medium to avoid flash back. The spark gap is defined by two axial electrodes. In Fig. 4 (not shown) a source of γ-rays is provided to promote ionization of the gas in the spark gap and in Figs. 6, 7 (not shown) a fan is provided at the end of the probe which is provided with the mesh covered apertures to promote circulation of the medium through the spark gap. Ignition of the medium may be detected by thermistors inserted in the gas chamber. In a second embodiment, Fig.8, the ignition igniter is a heating or incandescent body 40 instead of the spark gap. The probe 6 in this case has a heating element 40 connected in one arm of a bridge fed by adjustable voltage source 43. The bridge is initially balanced and then the current through 40 increased until ignition occurs, indicated by transducer 49 connected via amplifier 50 to lamp 51, the transducer being a heat-sensitive emitter, pressure or light sensor. The unbalance voltage of the bridge is measured at ignition on instrument 48 which shows the heating element temperature. The probe 6 is similar in construction to that of Fig. 1 except that a strip of resistor material  replaces the spark gap electrodes, Figs. 9, 10 (not shown). Instead of a strip of resistor material the heating body 40a, 40b, 40c may comprise a thermo-electric couple, Fig. 12, which is supplied from an alternating-current generator 62 via capacitors 63, 64 the e.m.f. developed in the couple due to its heating being applied to meter 48a via inductors 65, 66 to indicate the temperature of the couple. The generator 62 output is controlled by a rampfunction generator 67 which passes through normally open gate 68. When ignition occurs a signal from transducer 49a closes the gate to stop the heating current from 62. The heating body may be a tube of resistor material Fig. 14 (not shown).
Patent GB-1418508-A (GB)
Title: Apparatus for tensioning screw bolts and like elements
IPC: B23P19/06
Filed: 1973-12-03
Abstract: 1418508 Tensioning bolts MASCHINENUND BOHRGERATEFABRIK ALFRED WIRTH & CO KG 3 Dec 1973 [1 Dec 1972] 55862/73 Heading F2H Apparatus for simultaneously tensioning a plurality of bolts, tie bars, or other elements provided with fixing nuts, includes a supporting frame 7 for tensioning assemblies 6 each comprising at least one cylinder 12 containing a piston 14 acting upon a force transmitting element 19 which can be screwed on to a bolt 1 or other element to be tensioned, means, e.g. an hydraulic motor 32 for rotating each fixing nut 5 on a bolt 1, and a motor, e.g. an hydraulic motor 39 for rotating each force transmitting element 19 for screwing or unscrewing it on or from a bolt 1. In the embodiment illustrated in Fig. 2 each tensioning assembly 6 has two cylinders 11, 12 in which pistons 13, 14 are moved to act simultaneously via a ring 19a upon the force transmitting element in the form of a nut 19 screwed on to the bolt 1 by the motor 39 via gearing 44, 45 rotating a member 41 having teeth 46 engaging teeth 47 on the nut 19. The supporting frame 7 is initially lowered by a crane on to a cover flange 2 through which the bolts 1 project and pins 52 are released by a chain drive 56, 57 (Fig. 1, not shown) to free nuts 5. The motors 32, 39 are then energized to screw the nuts 5, 19 on to the bolts 1, and at the same time the apparatus is lowered towards the cover flange 2 by hydraulic piston and cylinder devices 61, 62 (Fig. 3, not shown). After screwing of the nuts and the stopping of the motors 32, 39 fluid is applied to the pistons 13, 14 to tension the bolts each to a desired tension indicated by a gauge 76. In an alternative embodiment each bolt is tensioned by fluid pressure applied to a nut 19<SP>1</SP> (Fig. 4, not shown) screwed on to an extension piece (71) coupled to the bolt by a conical screwthreaded connection.
Patent GB-1352898-A (GB)
Title: Cooling shroud plate for hydraulic torque transmitting mechanism
IPC: F16H41/30
Filed: 1971-12-02
Abstract: 1352898 Cooling hydrokinetic transmission NISSAN MOTOR CO Ltd 2 Dec 1971 [9 July 1971] 55942/71 Heading F2C A hydrokinetic torque transmitting mechanism, such as a torque converter is cooled by an annular plate 19 which is affixed to the outside of the pump of the torque converter by welding the parts 20 to this pump, the annular plate 19 thus defining channels under the parts 21 (see Fig. 4, a section along the line IV-IV of Fig. 2) through which cooling air is drawn by rotation of the pump. Inlet and outlet apertures for this air are formed in the torque converter housing (Fig. 1, not shown) and a flange 23 on the annular plate 19 strengthens this plate.
Patent GB-1116972-A (GB)
Title: Device for producing the surface layer of a wiping cylinder in single-colour or multi-colour steel engraving printing machines
IPC: B41F9/10
Filed: 1965-05-27
Abstract: Apparatus for use in applying successive layers of synthetic plastics material to a cylinder to form a wiping cylinder for an engraved-plate printing-machine comprises a scraper blade for distributing evenly each layer as it is applied, micrometer means for adjusting the blade towards and away from the cylinder, and a p relatively-fixed abutment which determines the inclination of the blade to the cylinder surface.  Specification 1,116,971 describes the use of identical apparatus in a process for forming wiping cylinders.
Patent GB-1217848-A (GB)
Title: Silicon compounds
IPC: C07F7/18
Filed: 1967-12-13
Abstract: 1,217,848. Glass cloth coating with silicon compound. DOW CORNING CORP. 13 Dec., 1967 [16 Dec., 1966], No. 56541/67. Heading B2E. [Also in Division C3] Glass cloth, particularly for use in laminates, can be coated with a mercaptoaryl silicon compound of the formula: where R is a monovalent hydrocarbon radical free of aliphatic unsaturation, R' is an arylene, alkarylene or alkylene arylene radical, X is halogen, OH, alkoxy, aryloxy or acyloxy, m is 0 to 2, n is 1 to 3 and m + n cannot exceed 3.
Patent GB-1417589-A (GB)
Title: Linear actuators
IPC: F15B15/14
Filed: 1972-12-14
Abstract: 1417589 Hydraulic actuators CLARK EQUIPMENT CO 14 Dec 1972 [23 Dec 19711 57803/72 Heading F1D In a hydraulic actuator the piston 22, has a partspherical surface 32 on which is located a sleeve 30 and the piston rod 20 slides through a sleeve 40 which has an outer part-spherical surface 42 and is retained in the cylinder 12 by a pair of spacers 49, 50. Each sleeve is provided with an axial slot to permit fluid to flow past the sleeves. Sharp edges 62, 63, 64, 65 on the sleeves prevent particles entering between the sleeves and their mating surfaces. The centres of the part-spherical surfaces of the sleeves 30, 40 are located on the central axis of the actuator at 28 and 46 respectively. The actuator is double-acting, fluid being admitted and exhausted through ports 68, 72. A stop member 74 prevents the piston covering the port 72 when the rod is extended. The sleeves are made of a material with a low co-efficient of friction, e.g. a phenolic resin, which may be fibre or fabric reinforced. However, metallic sleeves may be provided. 1417607 Spray carburetters HIRTENBERGER PATRONEN-ZUNDHUTCHENUND METALLWARENFABRIK AG 23 Feb 1973 9141/73 Heading FIB Fuel flow to a nozzle 16 is controlled the degree of registration of recesses 14 and 15 in the planar abutting surfaces 11 and 12 of an angularly adjustable pre-settable member 9 and a throttle valve 1. A spring ring 12 biases the valve 1 against the member 9 and a rubber ring 18 restrains the member against accidental adjustment.
Patent GB-1236629-A (GB)
Title: Bi-directional electronically scanned antenna system
IPC: H01Q25/00
Filed: 1968-12-05
Abstract: 1,236,629. Aerials. EMERSON ELECTRIC CO. 5 Dec., 1968 [5 Dec., 1967], No. 57915/68. Heading H4A. Beams are formed on each side of an electronically scanned lens by feed system means energizing sets of radiating elements which are disposed on each face of the lens, and which are connected by an array of phase shifters. As described, an aerial system includes a transmission type lens 2, Fig. 3, having large numbers of radiating elements 4, 5 on opposite faces 6, 7, pairs of said elements being connected together through reciprocal or non-reciprocal type phase shifters 3. A horn 8 feeds the elements 5, so that a beam 10 is radiated by the elements 4. Similarly, a horn 9 feeds the elements 4, so that a beam 11 is radiated by the elements 5. Drivers 14 controlled by a computer 15 adjust the settings of the phase shifters 3, and the spherical wave fronts from the horns 8, 9 are converted to provide steerable radiated phase fronts which may be planar or, for specially shaped beams, non-planar. A transmitter 16 and a receiver 17 are coupled through a duplexer 18. The horns 8, 9, Fig. 5, may be off-set to reduce aperture blocking. Two systems may be provided which are placed one above the other and at right angles, so that 360 degrees azimuthal coverage is obtained although each side of each lens scans over only Œ45 degrees. In another embodiment the feed horns (208), (209), Fig. 7 (not shown), are polarized, and polarized reflectors (219), (220) are provided on the faces of the lens, each of which reflects the phase front from the opposite horn but passes that from the adjacent horn. Thus, beams (210), (211) are formed on the same sides of the lens as their generating feed horns (208), (209). Reciprocal type phase shifters (203) must be used.
Patent GB-1203370-A (GB)
Title: Crop harvester with reel selectively positionable, and selectively driven, braked or free-wheeling
IPC: A01D43/10
Filed: 1968-12-06
Abstract: 1,203,370. Crop harvester. INTERNATIONAL HARVESTER CO. 6 Dec., 1968 [2 Jan., 1968], No. 57991/68. Heading A1F. A crop harvester having a cutter 28 and a rotatable reel 34 comprises means for vertically adjusting the reel position, and independent means for controlling the rotary motion of the reel in any vertical position. The reel 34 is mounted on arms 40 depending from upper arms 42, and is driven through a belt and pulley system. Vertical adjustment of the reel 34 is achieved by raising the arms 42 about a pivotal mounting 44. A cam 76, Fig. 2 (not shown) is pivotally mounted at (78) on an arm 42, co-operating with a roller (84) to define a series of arm positions, an arm 80 being acted on by a cord 86 to rotate the cam 76 via a ratchet and pawl (800), (82). The rotary motion control means, are mounted on the arm 42, comprising a belt-tightener pulley 58 engagable against a belt 54 of the drive. A tension spring 92 acting on a lever 90 bearing the pulley 58 urges the latter into engagement with the belt 54, Fig. 4, allowing drive transmission, while a tie 110 connected to a cotter pin 112 retracts a brake shoe 106 against the action of a tension spring 108. Action on a cord 94 withdraws the pulley 58 from the belt 54 while maintaining the brake shoe 106 in retracted position, Fig. 5 (not shown), allowing freewheeling of the reel 34, while further action on the cord 94, Fig. 6 (not shown) leads to braking.
Patent GB-1380935-A (GB)
Title: Multiple gas discharge display and memory panel
IPC: H01J17/49
Filed: 1971-12-16
Abstract: 1380935 Gas discharge display panel OWENSILLINOIS Inc 16 Dec 1971 [16 Dec 1970] 58417/71 Heading H1D An A.C. operable multiple gas discharge display and memory panel includes opposed dielectric charge storage members each having an array of electrodes isolated from the gas and defining cross points and at least one member being constituted by, incorporating or being in juxtaposed relation to a U.V. excitable phosphor, the phosphor being excluded from the electrode intersections. Specific shapes are exemplified and may be continuous (Figs. 1, 3, 5, 7, 9, 10, not shown) or discontinuous (Figs. 2, 4, 6, 8, not shown) and completely or partially surround the intersections. The phosphor may be in dots (Figs. 11, 13, not shown), a continuous layer with openings (Fig. 12, not shown), the remaining Figs. indicating other geometries. Different geometries may be in the same panel. The gas may be He, Ne, Ar, Kr, Xe, mixtures thereof nitrogen, hydrogen, oxygen, carbon dioxide or monoxide or mixtures thereof (e.g. 100% Xe at 50 to 400 torr, Ne-Ar or Ne-Ar-Xe up to 800 torr), pressures and frequencies are such as to give a "memory margin". The phosphor overcoated with dielectric, and the U.V. radiation 500 to 2500. Phosphors may be solid, liquid, inorganic and organic, may be luminescent glass embedded in the dielectric. Phosphors are disclosed, also thicknesses and many methods of application. Two or more combined phosphors produce a multi colour display, each phosphor excited by the same or a different source. One phosphor may excite another. Individual intensity control of a three colour dot system may be by control of voltage, discarge duration, or multi layers of glass and phosphor with independent layer addressin. Displays may be numerals, letters, TV, radar, and binaries. Reference is made to panels with physically isolatable units and to Specifications 1,380,426 and 1,380,934.
Patent GB-1408455-A (GB)
Title: Fluid flow indicato' apparatus
IPC: A61M16/00
Filed: 1972-12-19
Abstract: 1408455 Measuring fluid-flow BENDIX CORP 19 Dec 1972 [20 Dec 1971] 58582/72 Heading G1R [ Also in Divisions AS and F2] In a fluid-flow indication apparatus, such as for the artificial ventilation of an individual's lungs, a flow control 104 is connected to a source of breathable fluid 176 for regularly supplying the recipient with a predetermined flow-rate, a cycle control means 106 is connected to first and second dials to move indicia thereon with respect to references 103, 105, 32, 52 to visually indicate a predetermined flow-rate, the cycle control means 106 is also inter-connected to a cycle proportioning means 62 and the flow control 104 for regulating  the frequency with which the breakable fluid is supplied to the recipient. The fluid-flow control 104 is connected to one of the first or second dials to visually indicate the quantity of breakable fluid disposed in one cycle. The cycle proportioning means 62 is set to the appropriate inspiration - expiration ratio to move a sensor 92 to transfer an operational signal to a pneumatic logic circuit control 94 and to correspondingly move indicators 103, 105. Rotation of the control means 104 moves a part 122 to move a curved face 126 relative to a valve seat 128 to meter the flow of breathable fluid from the source 176 through a delivery valve 108. The control cycle means 106 on rotation moves a diaphragm 188 to vary the volume of a chamber 170, connected by conduit 174 to the breathable source 176 and by a conduit 180 to a dump valve 182, the inhalation - exhalation sensor 92, a low-pressure sensor 184, and a high pressure sensor 186 in turn connected to the pneumatic logic circuit 94. The rotation of the flow control 104 and cycle control 106 also rotates the first and second dials 22, 28 relative to one another and to the reference means 103, 105, 32, 52 through trains of gears and a differential mechanism 224. The dials 22, 28 are loaded by a spring 148 operating against a pin 145.
Patent GB-1267388-A (GB)
Title: Improvements in and relating to a semiconductor mechano-electrical transducer
IPC: H01L21/00
Filed: 1969-12-02
Abstract: 1,267,388. Semi-conductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 2 Dec., 1969 [4 Dec., 1968], No. 58768/69. Heading HlK. In a mechano-electrical transducer comprising a silicon body 12 and a pin 18 for applying pressure to that body-the pressure point is stabilized by coating the body and pin with alayer 16, 19 of chromium, nickel or aluminium, and a further layer 17, 20 of a fusible metal suchas tin-lead alloy or gold arranged so that when the pin and body are brought together under pressure they adhere to one another due to fusion 21 of the two layers. The pin may be ofsapphire, diamond or ultra-hard alloy. In the embodiments the silicon body may have an electrode layer 15 forming a Sohottky junction with the body, or there may be a PN junction in the body, Fig. 1 (not shown). Exposed surfaces of the body are passivated by a silicon dioxide layer.
Patent GB-1429762-A (GB)
Title: Electric heating element
IPC: H05B3/12
Filed: 1971-12-20
Abstract: 1429762 Resistance heating element V J NOONAN 19 March 1973 [20 Dec 1971 17 July 1972 3 Aug 1972] 59195/71 33326/72 and 36256/72 Heading H5H A flexible heating tape comprises a metal foil coated on one or both sides with a metal, alloy, carbon or semi-conductor and provided with supply terminals at opposed ends the coated foil being protected by a damp resistant covering. The foil may be of aluminium and may be coated with copper, copper alloy, with further coatings of aluminium, copper, copper alloy, silicon, or carbon. The coatings are applied in the form of a conductive paint. The element, in the form of a long narrow tape is applied to walls and ceilings and supplied from a step down transformer.