baber/WOPTO huggingface dataset:
Patent GB-1097708-A (GB)
Title: Improvements in thermal overioad devices for the protection of electric motors
Inventor: THORNE ARTHUR ROBERT HAMILTON
IPC: H01H71/16
Filed: 1965-10-13
Abstract: 1,097,708. Automatic circuit-breakers. J. A. CRABTREE & CO. Ltd. Oct. 3, 1966 [Oct. 13, 1965], No. 43485/65. Heading H2B. A thermal overload tripping device for the protection of electric motors includes an actuating bimetal blade 1 to which is welded between its ends (at 4b) a heater in the form of two parallel strips 4, 4a, disposed in spaced relation on each side of the blade 1 and connected by a bridge 5. The strip 4a is connected by a flexible braid 6 to a bracket (8) and terminal 9, (see also Figs. 3, 4, not shown), so that the heater can move with the bimetal blade 1 when it flexes on heating. The blade 1 is mounted on a bracket 2 providing a terminal (7). Three such bimetal assemblies are mounted side-by-side in compartments (12) of a box (11), (Fig. 1, not shown), the reduced end 1a of each blade 1 engaging a trip bar 3 of a mechanism (13) similar to that of Specifications 633,393 and 995,777. An ambient temperature compensating device (not shown) is provided.
Patent GB-1357507-A (GB)
Title: Case for a measuring tape
IPC: G01B3/10
Filed: 1972-09-20
Abstract: 1357507 Tape measure MANUFACTURE QUENOT MABO 20 Sept 1972 [26 Nov 1971] 43502/72 Heading G1M A tape measure comprises an outer shell 1 and a rotating cover disc 9 provided with a drum 26 for the tape 27 and a handle 17. The disc 9 is journalled about a spindle consisting of a collar 3 on the shell 1, and a pivot 13 connected to the collar 3 by a screw 5 and prevented from rotating by engagement of a flat 14 on the pivot with a flat 8 on the collar 3 Axial movement of disc 9 is limited by engagement of an annular collar 12 with the collar 3 and the head 15 of the pivot 13. The handle is held in its retracted position (as shown) or operative position by means of a spring 23 which is fixed at one end to a socket 24 in the disc 9, engages the handle with a middle convex section, and engages the head 15 of pivot 13 at its other end. Undesired rotation of the disc 9 thus prevented by friction between head 15 and the spring.
Patent GB-895605-A (GB)
Title: Improvements in or relating to electric conversion circuits
Inventor: MYNALL DENNIS JAMES
IPC: G06G7/22
Filed: 1959-12-24
Abstract: 895,605. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 11, 1960 [Dec. 24, 1959], No. 43891/59. Class 40 (1). [Also in Group XXXVI] A circuit for producing two output voltages ES and EC, Fig. 1, in the ratio tan #, where #=ax+b, a and b being constants and x an input variable, comprises a fixed resistance FRI and a tapped resistance TR in series across a voltage source, the tapping-point varying linearly with the input variable x and a second fixed resistance FR2 connected across the first fixed resistance to the tapping-point. According to the Specification with the values for FR 1 and FR2 shown, where R is the total resistance of the tapped resistance, the ratio ES/EC approximates very closely to tan #, and further if the voltage source S has an impedance of 3.5R, as seen from the series-connected resistances TR and FR1 then ES and EC also vary substantially as sin # and cos # respectively. In a modification, Fig. 4, the tapped resistance TR is replaced by a chain of binary weighted resistors r0, r1 ... r9, the tapping point being selected by switches S0, S1 . . . S9 in accordance with a monoplylic binary code, and the three output terminals 01, 02, 03 of Fig. 1 are switched to form terminals V1 . . . V4 suitable for use in the control system described in Specification 872,152, which is referred to. Specification 814,617 also is referred to.
Patent GB-1430281-A (GB)
Title: High molecular weight polycarbonates containing s-triazine rings
IPC: C07D251/34
Filed: 1973-09-19
Abstract: 1430281 Polycarbonates containing s-triazine rings BAYER AG 19 Sept 1973 [20 Sept 1972] 43973/73 Heading C3R Polycarbonates having an average molecular weight of above 10,000 are derived from a carbonate precursor and a bis-hydroxy compound containing a s-triazine ring of the formula in which Z is a direct bond, -O-, -S-, -NH- or -NR<SP>6</SP>- and R and R<SP>6</SP> are hydrogen, hydrocarbyl or substantuted hydrocarbyl and may be linked, optionally via hetero atoms. The s-triazine-ring containing bis-hydroxy compound is obtained by reacting the corresponding diahlogeno-s-triazine with two equivalents of an aromatic bis-hydroxy compound. Manyexamples are given, e.g. the preparation of a polycarbonate from phosgene, bisphenol A and 2-diphenyl amino-4,6-dichloro-s-triazine. Chain stoppers and chain branching agents, which may also contain s-triazine rings, may be included. The polycarbonates may be mixed with carbon block or glass fibres.
Patent GB-1018883-A (GB)
Title: Parachute
IPC: B64D17/14
Filed: 1963-11-07
Abstract: 1,018,883. Parachutes. P. M. LEMOIGNE. Nov. 7, 1963 [Nov. 14, 1962], No. 44006/63. Heading B7G. A parachute comprises an outer canopy section 1, an inner canopy section 6 of inverted conical form, an annular vent 12a separating the two sections an an outlet cone member 16 surrounding the vent. The outer edge of section 1 and the apex of the conical section are connected to rigging lines and the two sections are joined by tapes reinforced with rope. The outlet opening of the member 16 is controlled in area by a single rigging line or, as shown, is controlled in area and shape by two lines 26a, 26b. The conical section 16 may be continued over the outer section 1 as at 27 to form nozzles, and similar nozzles may be formed in the outer section itself. The areas of these nozzles may be controlled by rigging lines. Tangentially directed controllable nozzles may also be provided in the outer section (Figs. 10 and 11, not shown) and vertical stabilizing surfaces may be fitted on the rigging lines 2. The control lines may be servo-operated and may be operated from an aircraft or from the ground. In another embodiment (Fig. 9, not shown) a main parachute 33 is supplemented by an intermediate parachute 32 also having an inverted conical centre portion and an annular vent, and a pilot parachute 31.
Patent GB-1387968-A (GB)
Title: Looms
IPC: D03D49/60
Filed: 1973-09-19
Abstract: 1387968 Sleys RUTI MACHINERY WORKS Ltd 19 Sept 1973 [19 Sept 1972] 44043/73 Heading D1E A sley which is oscillated by cams 28, 29 acting on followers 24, 25 is mounted on a shaft 41, Fig. 2, which is mounted eccentrically in a disc 43, which in turn is mounted eccentrically in a further disc 45 mounted in the loom frame 49, so that the position of shaft 41 may be adjusted to eliminate plays between the cams and followers. Discs 43 and 45 may be locked in position by tightening a nut 51.
Patent GB-1424912-A (GB)
Title: Electrical power distribuition system having a current-limiting  selective protective arrangement
IPC: H01H71/10
Filed: 1973-09-19
Abstract: 1424912 Automatic circuit breakers; electromagnetic switches MERLIN GERIN 19 Sept 1973 [28 Sept 1972] 44047/73 Heading H1N [Also in Division H2]  A circuit-breaker which may be tripped to be opened by springs 174 when a coil 60 is energized to move a toggle linkage 168 over-centre has a stationary magnetic part which, due to excess current in conductors 148, 150 and contact bridge 140, can attract an armature 154 which after some lost motion causes a drive plate 158 to engage the ends 164 of pins 162 on the contact bridge 140 and open the contacts which are held open until the current falls. In an alternative arrangement (Fig. 3, not shown) the armature is normally held away from the stationary magnetic part by a permanent magnet. The armature may be moved by induction.
Patent GB-1488684-A (GB)
Title: Video amplifier and chroma matrix combinations
IPC: H04N9/67
Filed: 1974-10-12
Abstract: 1488684 Television systems; transistor amplifying circuits MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 12 Oct 1974 44302/74 Headings H4F and H3T An amplifier designed to compensate for loss of high frequency components of a colour video signal resulting from feedback via the collectorbase capacity comprises two transistors forming a differential amplifier. The luminance signal is applied to the collector circuit and a colour difference signal to the base of one of the transistors, the emitters being connected together. The primary colour signal is obtained from a load resistor connected to the collector of the other transistor. A prior art arrangement, Fig. 1 (not shown), comprises a common emitter amplifier (Q3) which receives the luminance signal Y at its collector via a load resistor (3) and a colour difference signal, e.g. R-Y, at its base. Collector-base feedback causing h.f. loss in the primary colour signal R appearing at the collector is reduced by applying the R-Y signal to the base via a Darlington pair which acts as a low impedance source. In the present arrangement, Fig. 2, the R-Y signal is fed to a differential amplifier Q12, Q13. The luminance signal Y passes via transistor Q4 to the collector of Q12 and the collector load resistor 20 of Q13, the primary colour signal R appearing at the collector of Q13. H.f. components in Y are fed back to the base of Q12 via the collector-base capacitance, and are amplified and passed to Q13 where they compensate for h.f. loss due to load resistor 20 and the capacitance of Q13. Loss due to the capacitance is also reduced by earthing the base at Q13. The B-Y and Y signals are applied similarly to differential amplifier Q14, Q15 to generate the B signal. Both colour difference signals pass to a resistor matrix 26, 27, 28 to generate the G-Y signal which feeds differential amplifier Q16, Q17. H. f. loss due to load 33 and the capacitance of Q16 is compensated by feedback of the h.f. components of the Y signal via C1. The primary colour signal G appears at the collector of Q16. The amplifiers Q12, Q13 and Q14, Q15 may be modified by one or more of the three arrangements shown in Fig. 6. For example, the base of Q13 may be connected via 35, 36 to earth to equalize the base bias voltages, so as to compensate for temperature variations. The collector currents may be equalized by addition of 37, 38. If feedback to the base of Q12 is large resistor 39 is connected to the base of Q12.
Patent GB-1323363-A (GB)
Title: Electro-optical network for producing a pulse signal in response to a trigger pulse
IPC: H03K3/42
Filed: 1970-09-17
Abstract: 1323363 Semi-conductors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Sept 1970 [20 Sept 1969] 44384/70 Heading H1K [Also in Divisions C4 and H3]  An electro-optical network for producing a pulse signal such as a single pulse or a pulse train in response to a trigger signal has a pulse generating diode 40 of N-v or v-N-v structure series connected with an injection-electroluminescent diode 41 optically linked to a circuit including a photo conductive element 46 and a pulse generating diode 47 of N-v or v-N-v structure. The injection-electroluminescent diode 40 is formed as a PN junction (35, Fig. 4, not shown) on an N type GaAs layer 31 having an impurity doping providing a highly resistive region (32) and forming a pulse generating diode 41. The P type region (34) of the electroluminescent diode may contain an impurity such as zinc. The diode 41 may be biased between an oscillation threshold and an oscillation terminating voltage so that a trigger pulse (a, Fig. 6, not shown), to 43 causes the diode 41 to generate a train of pulses (b) until a negative input pulse is applied. The train of pulses generated are transferred by the optical link provided by the injection electroluminescent diode 40 and photocell or diode 46 to trigger oscillation in a similar semi-conductor pulse generating diode 47 which is biased below the oscillation threshold so as to reproduce the pulse train at 49. By biasing the pulse generating diode 41 below the oscillation terminating voltage a trigger pulse produces a single pulse oscillation (c) from diode 41 to be regenerated in diode 47. The semiconductor pulse generating diodes 41, 47 may be of the type having two valleys in its conduction band and may be of GaAs, indium phosphide, indium arsenide or cadmium telluride. The highly resistive layer (12, 32, Figs. 1 and 4, not shown) may be produced by diffusion or crystal growth to dope an impurity such as Fe, Ni, Cu, Cr, Co or Mn. Contacts electrodes (12, 13) of the pulse generating diode 47 may be tin alloy or gold and germanium. Oscillation produced by the pulse generating diodes may be due to avalanche multiplication and to trapping effect. The photo conductive element 46 can be formed integral with the pulse generating diode 47 by depositing a photo conductive material on a major surface of the semi-conductor wafer (11) opposite the resistive layer (12) and the electrode (13) is then permeable to the radiation emitted from the PN junction of diode 40. A plurality of electro-optical networks can be formed on a single crystal substrate in matrix form to provide a radiation coupled logic circuit.
Patent GB-936657-A (GB)
Title: Improvements in or relating to harvesting apparatus
IPC: A01D34/43
Filed: 1959-12-31
Abstract: 936,657. Forage harvesters. JOHN DEERELANZ A.G. Dec. 31, 1959 [Dec. 31, 1958], No. 44418/59. Class 6(3). [Also in Group XXX] In a forage-harvester of the type having a flail-rotor 2 in a downwardly-open housing 1 having a front wall 12 the lower edge of which is provided with a shearing surface for the flails, the front wall is adjustable about an axis 13 transverse to the direction of travel. The axis is constituted by a rubber strip forming a hinge between the movable front wall 12 and a fixed wall 11 which leads into an upwardlyinclined shoot 10. The front wall has returned side-flanges 14 through which pass bolts 15 securing the wall adjustably in position by co-operation with slots 17 in the ends 5 of the rotor-housing 1. A blade 19 is pivoted about an axis 18, is adjustable to various positions by bars 20, and carries knife members 23 for cooperating with the blades 3 of the flail.
Patent GB-1150949-A (GB)
Title: Cable Supporting Tray
IPC: H02G3/04
Filed: 1966-10-05
Abstract: 1,150,949. Cable tray. MONO-SYSTEMS Inc. 5 Oct., 1966 [18 Oct., 1965], No. 44545/66. Heading H2C. A cable tray 10 comprises a rigid spine member 11 from the sides of which parallel spaced fingers 12 project to form the cable bearers, the distal ends of the fingers being bent upwards to retain the cables in the tray. The spine member may have any desired cross-section. The fingers may be of bar form of any crosssection or of flat strip form, and may be attached to the side surfaces of the spine by brazing or welding, or may extend through apertures in the spine member and be retained by protuberances in the spine engaging in nicks in the fingers. The tray may be made of metal or plastics. Tray sections are joined by short joining sections which are a sliding tight fit in the spine member.
Patent GB-1062707-A (GB)
Title: Coating of oriented polyethylene
Inventor: WILLEMS JAKOB
IPC: C08L59/00
Filed: 1965-11-19
Abstract: A solution of polyethylene in p-xylene is applied to an oriented polyamide and the p-xylene is evaporated to form an oriented coating of polyethylene.  The polyamide may be based on e -aminocaproic or adipic acid and may be in the form of a disc, film or filament. Alternate layers of polyethylene and polyamide may be applied.
Patent GB-1041194-A (GB)
Title: Apparatus for the manufacture of briquettes
Inventor: HABBERJAM GERALD MORLEY
IPC: B30B11/00
Filed: 1961-12-14
Abstract: 1,041,194. Feeding devices for roller briquetting presses. COAL INDUSTRY (PATENTS) Ltd. Dec. 14, 1964, No. 44784/61. Heading B5A. In a double roll briquetting press 10, 11 the feed device 17 is controlled by a monitor device A-B-C-D-E responsive to the axial separation of the rolls, in such a way that the material fed to the rolls is maintained at a constant density. Roll 11 is urged against roll 10 by piston and cylinder device 14-15-16, and a signal dependant upon the separation of the rolls is passed from a capacitative detector A via a filter B to a proportional controller C. Any variation of the signal from a reference signal (corresponding to the desired separation of the rolls) causes corresponding motion of a pneumatic positioner D which motion regulates the feed device driving motor E and adjusts the feed of the material, thus restoring the rolls to their prescribed positions. In the Figure, the feed device comprises a screw 18 whereas in Fig. 2 (not shown) the feed device comprises a channel into which project reciprocating rocking paddles, means being shown by which said paddles may be driven.
Patent GB-1182218-A (GB)
Title: Coated Stopper Head for Controlling Outflow of Molten Metal Through the Nozzle of a Bottom Pour Receptacle.
IPC: B22D41/18
Filed: 1968-09-20
Abstract: 1,182,218. Stopper rods. VESUVIUS CRUCIBLE CO. 20 Sept., 1968 [28 March. 1968], No. 44943/68. Heading F4B. The stopper rod head of a molten metal ladle or tundish is coated with a friable refractory material which will disintegrate when subjected to tensile and/or shear stresses. In use, the coating alone breaks up due to the resistance of the surrounding " frozen " metal when the stopper rod is raised, thus avoiding damage to the rod head proper. The one quarter inch thick coating, which is applied by brushing, spraying or dipping comprises a refractory powder such as magnesia, dolomite, magnesite, mullite, fused or unfused silica, calcined or uncalcined high alumina fireclay, titania, zirconia, zircon, graphite, clay-graphite mixtures, silicon carbide or chromite, mixed with a binder such as dextrose ligno-sulphonate, starch or phosphoric acid, to form a slurry mortar, dip coat or wash.
Patent GB-1515197-A (GB)
Title: Electric fans
IPC: F04D29/52
Filed: 1976-09-29
Abstract: 1515197 Axial-How fans F W HING and F W CHEW 29 Sept 1976 [31 Oct 1975] 45191/75 Heading F1C The fan blade 1 and driving motor 3 of an electric fan are contained in a grilled casing 5 comprising two identical and interchangeable halves 7. The halves are clipped together by means of projections 8. The motor casing also comprises two identical and interchangeable halves 4. A plastics vane 10 is manually adjustable for varying the speed or direction of the air-flow. One or more oscillating deflector vanes may instead be provided to effect a directionally varying distribution of air-flow, the vanes being driven via reduction gearing comprising rubber wheels or pulleys or by means of a bladed rotor driven by the air-flow. Alternatively, the fan may be oscillated or rotated by an external and separate drive arrangement.
Patent GB-1003521-A (GB)
Title: Improved assembly of two pipe elements
IPC: F16L15/00
Filed: 1961-12-18
Abstract: 1,003,521. Pipe joints. COMPAGNIE DE PONT-A-MOUSSON. Dec. 18, 1961 [Jan. 18, 1961], No. 45210/61. Heading F2G. In an assembly between two pipe elements T 1 , T 2  the latter have ends which provide a mutual axial abutment and centering support and external screw-threads 9, 10 and are interconnected by the combination of a tube 13 and a sleeve 11, the tube being screw-threadedly engaged on one element and the sleeve on the other element, and the tube and sleeve are interconnected by the screw-threaded engagement of the tube on the sleeve. At least one of the three pairs of screw-threads by means of which the tube and the sleeve are screwthreadedly engaged on the elements and with one another have a screw pitch which is different from that of the other pairs. As shown, the ends of the pipes T 1 , T 2  are upset and have respectively co-operating male and female conical portions 4, 7 formed with recesses 5, 8 of semi-rectangular cross-section and adapted to receive a steel ring 6. The pitch of the screw-threads 9, 14 is greater than that of the pairs of screw-threads 10, 11a and 15, 11b, or vice versa. Sealing rings 22, 23 of polytetrafluoroethylene are compressed between the tube 13 and lock-nuts 20, 21 screwed on to the pipes, and a further sealing ring 24 is compressed between the sleeve and the lock-nut 21. Apparatus for assembling the joint is described.
Patent GB-1131171-A (GB)
Title: Fuel battery-rechargeable accumulator combination
Inventor: HOVIOUS THOMAS CARROLL
IPC: H01M16/00
Filed: 1966-10-10
Abstract: 1,131,171. Supply systems using fuel cells and rechargeable accumulators. GENERAL ELECTRIC CO. 10 Oct., 1966, No. 45232/66. Heading H2H. A parallel combination of a fuel battery and a rechargeable accumulator is used to supply one or two electrical loads and is also arranged so that the accumulator may be recharged by the fuel battery. Fig. 2 shows an arrangement in which a fuel battery 201 continuously supplies a low-power load 218, and a secondary battery 202 supplies a load 221 having intermittent high-power requirements, a switch 224 being provided in this circuit. The voltage of battery 202 is monitored by a reference element 212 so that voltage drop to a predetermined level produces operation of an amplifier 213 and actuator 211 to close a switch 209 for recharge of battery 202 from the fuel battery 201, a current control device 225 allowing the charge to be made at any desired rate. In another arrangement, Fig. 1 (not shown), for a single load (118) having continuous low power and intermittent high power requirements, the load is directly connected to one terminal (103) and a tapping (114) of the fuel battery and is connected through a switch (122) to the secondary battery (102), the latter being connected to the terminals (103, 106) of the fuel battery for recharging by circuit elements generally similar to those described above. If the load requires a high power of a pulse type, the rechargeable accumulator may take the form of a capacitor. The various circuit elements interconnecting the load and the batteries are conventional, solid state, valve type, non-linear resistor, solenoid-operated switch and spark gap devices being mentioned.
Patent GB-1530338-A (GB)
Title: Preparation of chlorinated aromatic amines
IPC: C07C315/04
Filed: 1976-11-02
Abstract: 1530338 Preparation of chlorinated aromatic amines BAYER AG 2 Nov 1976 [6 Nov 1975] 45503/76 Heading C2C The invention comprises a process for the preparation of chlorinated aromatic amines by catalytic hydrogenation of the corresponding chlorinated aromatic nitro compound in the presence of a noble metal supported on carbon as catalyst and of a sulphur compound which is a thioether or disulphide.
Patent GB-980364-A (GB)
Title: Improvements in and relating to machine tools
IPC: B23B29/04
Filed: 1962-12-05
Abstract: 980,364. Lathe tool-holders. Z.BRIERLEY, and A. S. WADSWORTH. Jan. 3, 1964 [Dec. 5, 1962], No. 45915/62. Heading B3B. A lathe-tool comprises a cutter 17 mounted adjustably on a tool-holder 10, a locator 30 engageable with a cylindrical element or the work, Fig. 3 (not shown), in a lathe's chuck, an abutment 36 on the locator 30 for locating a tip 28 of the cutter on the centre of the work &c., and means for locking the cutter. The cutter may have several tips 28 and be indexable about a central clamping bolt 18. One end of the locator 30 pivots on a boss 20 on the holder as the opposite, bifurcated end 31 is centred on the work. In this position, an abutment screw 33 in the locator is screwed into contact with an abutment 34, permitting the locator-setting to be repeated. A pin 36 slidable in the locator 30 is moved into the path of the adjacent tip 28, which is brought against the pin and clamped by the bolt 18 and a screwthreaded pin 42 engaging a recess in the cutter. Springs 26 act between the cutter and the holder 10, and the locator may be raised into an inoperative position, Fig. 4 (not shown). The holder may have a locating tongue on its base, Fig. 6 (not shown).