baber/WOPTO huggingface dataset:
Patent GB-1188077-A (GB)
Title: Improvements in or relating to Control Devices for Petrol Injection Systems
IPC: F02D41/32
Filed: 1968-10-18
Abstract: 1,188,077. Transistor pulse circuits. ROBERT BOSCH G.m.b.H. 18 Oct., 1968 [21 Oct., 1967], No. 49425/68. Heading H3T. [Also in Divisions F1 and G1] In an I.C. engine, the duration of pulses of injected fuel is controlled by a monostable multivibrator 12 in such a way that the duration of each pulse is dependent upon the pressure in the inlet manifold 3 and upon the engine speed. The speed-dependent control of pulse duration is made effective after a time lag at the end of each pulse by signals supplied from a circuit A to the feedback circuit of the multivibrator. At the end of each pulse, transistor T 3  is triggered after a time delay t 3  which then triggers transistor T 4  after a time delay t 4 . Transistor T 5  is in anti-phase with transistor T 4  and the voltage U s  appearing on storage capacitor C 4  during charging and discharging, see Fig. 3d, forms the speed-dependent control signal. The pulse duration t i  is determined by the momentary value of the control voltage U s  at the end of each pulse. As the engine speed increases the frequency of pulses increases and therefore the momentary value of the voltage U s  at the end of the pulse changes thus producing the relationship between pulse duration t i  and engine speed n shown in Fig. 2. The threshold voltage Uo is set by voltage divider R16, R17. In an alternative, Figs. 4, 5 and 6 (not shown), the control voltage U 8  is produced by the lowest voltage values of two superimposed voltages (I), (II) appearing on a storage capacitor (C 6 ) connected across the emitter-collector path of a transistor (T 7 ) and a storage capacitor (C 7 ) connected across the collector resistor (R 24 ) of a transistor (T 8 ) which is in anti-phase with the transistor (T 7 ). In a further alternative, Figs. 7, 8 and 9 (not shown), the control circuit A of Fig. 1 is connected to an additional circuit (C) having a storage capacitor (C 9 ) connected across the emitter-collector path of a transistor (T 9 ) provided with a time delay with respect to the transistor T 4 , and the control voltage Us is produced by the higher voltage values of the two superimposed voltages (U A ), (U c ) appearing on the storage capacitors C 4  and (C 9 ). In yet a further alternative, Figs. 10, 11 or 12 (not shown), the control circuit (B) of Fig. 4 is connected to the circuit (C) of Fig. 7, and the control voltage U s  is produced by the highest voltage values of the two superimposed voltages (U B ), (U c ) appearing on the storage capacitors (C 7 ), (C 9 ).
Patent GB-1317162-A (GB)
Title: Material tester and search unit therefor
IPC: G01N29/24
Filed: 1970-10-19
Abstract: 1317162 Ultrasonic inspection devices; ultrasonic probes AUTOMATION INDUSTRIES Inc 1 July 1970 [30 July 1969] 49447/72 Divided out of 1317161 Addition to 1295527 Headings H4D and H4J A search unit comprises a first transducer operable to induce eddy current fields in a workpiece, and a second transducer operable to detect acoustical vibrations of the workpiece caused by said fields, the second transducer including a member with a diaphragm adapted to be acoustically coupled to the workpiece, a radial-mode transducer element, and a housing in which the member is inserted, the member being arranged to transmit vibrations between the diaphragm and the transducer element. The two transducers may be arranged in a common housing. The first transducer includes a coil of wire: the second transducer is as in the parent Specification 1,295,527 (Division H4). Flaws in, or thickness variations of, the workpiece (e.g. honeycomb material, particle board or a plywood structure) are detected by observing on an oscilloscope changes in the travel time of the vibrations to the second transducer as the search unit is moved over the workpiece.
Patent GB-1511390-A (GB)
Title: Imidazolylalkyl sulphide antifungal agents
IPC: C07D233/90
Filed: 1975-12-04
Abstract: 1511390 Imidazolyl-alkyl sulphides PFIZER Ltd 2 Dec 1976 [4 Dec 1975] 49797/75 Heading C2C The invention comprises novel therapeutic compounds (I) where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each a hydrogen atom or a C 1-6  alkyl group; Ar is a phenyl group which may optionally be substituted with one or more halogen atoms, C 1-6  alkyl groups or C 1-6  alkoxy groups; or it may be a thienyl or halothienyl group; and Y is a mono or bi-cyclic group, containing at least one hetero-atom in a five- or six-membered ring and attached to the sulphur atom in Formula (I) by a carbon atom of that ring; and the pharmaceutically-acceptable acid addition salts thereof. They are made by standard methods.
Patent GB-1094587-A (GB)
Title: Improvements in or relating to thermally controlled electric switches
IPC: H01H37/04
Filed: 1965-11-24
Abstract: 1,094,587. Thermal switches. OTTER CONTROLS Ltd., and J. C. TAYLOR. Nov. 22, 1966 [Nov. 24, 1965], No. 49970/65. Heading H2B. A switch includes a bimetal snap-action actuator 1 (as in Specifications Nos. 600,055 and 657,434), a brass mounting plate 6 secured to actuator 1 by legs 7, and a fixed contact 10 carried by and insulated from plate 6 for cooperation with a movable contact 9 carried or controlled by actuator 1, said fixed contact 10 or a member supporting same being injection moulded in a nylon block 11 itself moulded in an aperture in plate 6. The fixed contact may comprise a Ag rivet 10, and a part 12 of a terminal (13, Fig. 1) is also moulded in block 11. The fixed contact may comprise a pin having an integral collar moulded in block 11, and an integral extending terminal. The fixed contact may comprise a rivet gripping a metal washer moulded in block 11, said contact not touching the block, and said washer having an extending terminal. Alternatively, the terminal may extend from a second washer. The terminal (13, Fig. 1) may serve for mounting the switch, or a lug on plate 6 may mount it. A part (8, Fig. 1) of plate 6 provides the second terminal. A lug 14 of plate 6 limits contact separation. The movable contact may be insulated from actuator 1 and a flexible connection thereto provided, or such insulated contact may bridge fixed contact 10 and a second fixed contact carried by plate 6 but not insulated therefrom.
Patent GB-1184112-A (GB)
Title: Improvements relating to Apparatus for the Production of Gramophone Records
IPC: B29C43/02
Filed: 1967-02-24
Abstract: 1,184,112. Moulding gramophone records. CARL LINDSTROM G.m.b.H. 24 Feb., 1967 [5 March, 1966], No. 50293/69. Divided out of 1,184,111. Heading B5A. The apparatus is identical with that of the parent Specification but the claim differs.
Patent GB-1151973-A (GB)
Title: Europium-Activated Silica-Alumina Phosphor and Method
IPC: C09K11/77
Filed: 1967-11-06
Abstract: 1,151,973. Luminescent glass. WESTING- HOUSE ELECTRIC CORP. 6 Nov., 1967 12 Dec., 1966], No. 50319/67. Heading C1M. [Also in Division C4] A phosphor composition has a matrix principally comprising amorphous silica plus mullite expressible by the formula xSiO 2 .(1-x)Al 2 O 3 , wherein x is 0À8 to 0À97 (e.g. 0À85 to 0À95, 0À9 to 0À95 and 0À925), (the silica and alumina combining in the approximate molar proportions 0À4 SiO 2  . 0À6 Al 2 O 3  to form aluminosilicate, excess of either component remaining unreacted), and including predominantly divalent Eu as activator in amount 0À0005 to 0À009 (e.g. 0À002 to 0À005, 0À003, 0À004) grm. atms. per gram mole of silica plus alumina matrix. Nitrate solutions of the following may be included (in gram atoms/grm. mole of matrix) 10<SP>-3</SP> to 10<SP>-4</SP> of Na or Li; 10<SP>-3</SP> of Mg or Ca; 10<SP>-4</SP> of Ga or Ge; 4 Î 10<SP>-3</SP> of Tb or Dy; and also Pr, Nd, Ho, Er, Tm, Sm and Yb to supplement the activator. A specific composition instanced is 0À925 SiO 2  . 0À075 Al 2 O 3 : 0À004 Eu. In a method of preparation a mix of aluminium oxide, silicon dioxide and europium oxide is heated and may, for instance, be fused at a temperature not exceeding 1750 C. (e.g. 1650 C.) in an inert atmosphere or oxygen, cooled to form a glass, and refined in a reducing atmosphere at 1000 to 1330 C. The raw mix may be first fired in air at 1000 to 1330 C. (preferably 1250 C.) and fired in a reducing atmosphere at 1100 C.
Patent GB-1135062-A (GB)
Title: Improvements in or relating to threshing machines
Inventor: HERBSTHOFER FRANZ JOSEPH
IPC: A01F12/18
Filed: 1965-11-30
Abstract: 1,135,062. Combine-harvesters. MASSEY-FERGUSON G.m.b.H. 24 Nov., 1966 [30 Nov., 1965], No. 50711/65. Heading A1F. A threshing and grain-separating mechanism in a combine-harvester comprises a threshing drum 8 and co-operating sieve 5, both of frusto-conical shape, the crop inlet being at the narrower end, and the bars of either the threshing cylinder or of the sieve being movable radially to alter the spacing between the drum and sieve. As shown the sieve 5 is fixed and the bars 9 of the drum are carried by lazy tongs 15, 16, 17 and 23, 24, 25 at the inner and outer ends respectively. Each lazy-tong mechanism is separately adjustable by members 22, 29 which are longitudinally adjustable and operate, via rollers 40, on discs 21, 28 carried by a rod 20 and tube 27 respectively, the rod 20 passing co-axially through the tube. In a modification (Fig. 4, not shown) the adjustment is by means of telescopic radial links which carry the bars 9. Reference has been directed by the Comptroller to Specification 1,049,834.
Patent GB-1156088-A (GB)
Title: Hoist Overload Preventing Device.
IPC: F16D59/00
Filed: 1967-11-08
Abstract: 1,156,088. Hoist overload prevention device. EATON YALE & TOWNE Inc. 8 Nov., 1967 [7 April, 1967], No. 50727/67. Heading B8B. [Also in Division F2] An overload preventing device on a hoist which incorporates a combined clutch and brake mechanism, i.e. a Weston brake, comprises a locking plate 22 rotationally fixed relative to the hoist body and disposed between two parts 23, 34 of a ratchet disc, the two parts being maintained in axially spaced relation by a Belleville spring 38 during normal operation, but axially compressed into engagement with the plate 22 to prevent rotation of an operating wheel 14 when an excessive load is placed on the hoist. Hoisting of a load on a chain 17 via sprocket 21 and gears 19, 18 is accomplished by rotating the wheel 14 by hand or power which through threaded engagement with shaft 12 causes compression of the clutch and brake mechanism comprising pressure ring 39, ratchet disc 23, 34, friction ring 40 and friction disc 15. In the hoisting direction the ratchet disc freewheels over a pawl disc 31 secured to the hoist body and in the lowering direction the ratchet is locked so long as the clutch and brake mechanism is in the axially compressed condition.
Patent GB-1440444-A (GB)
Title: Heating apparatus
IPC: F24H3/00
Filed: 1972-11-03
Abstract: 1440444 Construction of combustion apparatus; liquid heaters PARKINSON COWAN APPLIANCES Ltd 31 Oct 1973 [3 Nov 1972] 50736/72 Headings F4B F4A and F4W Heating apparatus for heating a fluid comprises at least one pair of bodies of heat conducting material, each body having an elongated groove 15 and a plurality of parallel walls 18 extending perpendicularly from the edge of the grooves, the two bodies being connected together with the wall 18 inter leaved so that the grooves 15 form a combustion chamber, the spaces between the walls on one side of the combustion chamber forming inlets for a fuel/ air mixture as indicated by arrow A, and the spaces between the walls on the other side of the combustion chamber forming outlets for the products of combustion, arrow B. Each body may be finned on its outer side, and two or more pairs of bodies may be assembled end to end. Walls 18 at the ends are formed with abutments 23 or recesses 24 to enable the bodies to fit together, and the ends of the bodies are dovetailed at 28, 29 to fit end to end, Fig. 3. The heater may be used in an air heater or as an immersion heater, or the fins may be omitted, each body having water passages through it.
Patent GB-1235846-A (GB)
Title: Liquid supply apparatus
Inventor: ROBINSON KEITH
IPC: F04C14/24
Filed: 1967-11-08
Abstract: 1,235,846. Valves. DOWTY FUEL SYSTEMS Ltd. 14 Oct., 1968 [8 Nov., 1967], No.50804/67. Addition to 1,084,871. Heading F2V. [Also in Division F1] A gas turbine fuel supply system with an operating mode similar to that disclosed in Specification 1,084,871 comprises a pump 11 which delivers to line 30 via port 14 controlled by regulating spool 18, passage 25 and variable throttle 23, 24. Spool 18 responds to the pressure drop across the throttle and is biased to an open position by spring 31 with a force which is a function of the position of the movable throttling plug 24. The spool serves to increase the pressure drop across the throttle as the latter increases in area, thereby rendering the change in flow per unit movement of plug 24 more uniform over the whole range of movement. The spool is continually rotated through gearing 36, 37 to overcome friction. In Fig. 2 (not shown), chamber 33 beneath the spool has restricted communication with the upstream and downstream sides of the throttle so that the spool is only subjected to a proportion of the pressure drop across the throttle. A valve in the pump inlet tends to close at low flow rates and thereby reduces the radial depth of the liquid annulus in the pump in known manner. In Fig. 3 (not shown), a positive displacement pump is used and the spool controls a by-pass line. The spring can be machined from a tubular blank.
Patent GB-1291831-A (GB)
Title: Fuel control apparatus for reheat systems of gas turbine engines
Inventor: SMITH TREVOR STANLEY
IPC: F02K3/10
Filed: 1968-10-28
Abstract: 1291831 Gas turbine jet engines; centrifugal pumps JOSEPH LUCAS (INDUSTRIES) Ltd 12 Jan 1970 [28 Oct 1968] 51034/68 Headings F1C and F1J In a fuel control apparatus for a re-heat system of a gas turbine engine, fuel is delivered by an air-turbine-driven pump 16 through a pressuredrop control valve 18 and ports 13, 14 to the interior of a hollow angularly and axially movable spool 11, and is delivered therefrom through ports 30, 31, 32, 33 to lines 23, 24, 25, 26 leading to a re-heat burner (not shown). The spool 11 is axially adjustable by a piston 39 in accordance with the pressure difference created thereacross by pressurized fuel flowing through orifice 40 to a lever-actuated vent valve 41 adjustable by a bellows 45 externally subjected to an air-pressure signal derived from the delivery side of the engine compressor. The angular position of the spool 11 is controlled by a servo-mechanism 34 having a piston 37 arranged to follow the movements of an input member 35 coupled to pilot's lever 36. A second input member 38 coupled to the final nozzle control mechanism of the engine, controls the limit to which the fuel flow can be increased. Lines 24, 25, 26 include valves 27, 28, 29 having spring-loaded control members 46 which are subjected to the pressure drop across the ports 30, 31, 32 respectively, so as to open successively as the fuel flow delivered to the burner increases. The pressure drop control valve 18 has a spring- loaded control member 19 which is subjected to the pressure drop across ports 13, 14. The spring-loadings on valve members 19, 46 are variable by cams 22, 48 actuatable by levers 49 linked to a common actuating device 50 having a servo-piston 56 controlled by the position of a piston 51 controlled in accordance with airpressure immediately upstream of the re-heat burner and air-pressure on the delivery side of the engine compressor. The air supply to air turbine 17 and thus the output of the pump 16, are controlled by adjusting a valve 61 via pilot's lever 36 and a pivotable link 62, or via a piston 60 controlled in accordance with pump discharge pressure and the pressure inside spool 11.
Patent GB-1161100-A (GB)
Title: Improvements in or relating to Bobbin Clamping Devices for Textile Machines.
IPC: B65H54/553
Filed: 1966-11-16
Abstract: 1,161,100. Clamping bobbins. VYZKUMNY USTAV BAVLNARSKY. 16 Nov., 1966 [1 Dec., 1965], No. 51280/66. Heading D1J. A bobbin is clamped in a textile machine by an annular clamping member at each end of the bobbin, the members being mounted on a pair of arms which are rigidly secured together and pivotally mounted, springs being provided to urge the members towards one another. The annular members are of frustoconical cross-section and are supported on bearings on the arms for rotation.
Patent GB-1398668-A (GB)
Title: Safety system for hydrofoil craft
IPC: B63B1/30
Filed: 1973-11-06
Abstract: 1398668 Hydrofoil craft BOEING CO 6 Nov 1973 [21 June 1973] 51444/73 Headings B7A and B7V A hydrofoil craft 10 comprises a hull structure having a forward recess 40 in which is mounted a strut 14 carrying a foil 16 for movement between a retracted position (shown in dotdash lines) for hull-borne operation and an extended position (shown in full lines) for foilborne operation, the strut 14 when in extended position being restrained from further aft movement by a restraining member 42 having a reduced portion which will yield and break if the strut 14 engages an obstruction, permitting the strut to move to the dotted line position shown in Fig. 2. The strut 14 is mounted in a kingpost (not shown) which allows rotation about a vertical axis to enable the strut to be used as a rudder and the kingpost is carried by a yoke member 46 supported by a structure 30 comprising two arms 32 pivotally mounted on brackets 38 in the recess 40. The restraining member 42 is mounted between the body of the craft and the yoke 46. Movement of the strut 14 between its retracted and extended positions is effected by a cylinder 62 acting between the yoke 46 and the pivotally connected ends of upper and lower supports 66, 68, the other ends of which are carried by extensions of the arms 32 and a bracket (not shown) on the support 30, respectively. In a simplified arrangement the supports 66, 68 are dispensed with and the cylinder 62 is mounted on the body of the craft. The restraining member 42 may be replaced by an energy absorbing member in the form of a cylindrical plug which is drawn through a tube of smaller diameter permitting controlled movement of the strut 14. A similar mounting for the aft foil carrying struts of the craft is also described, but in this case since the actuated position of the strut is aft of the extended position then a servomotor actuated pin is provided to link the restraining member to the support for the strut when the strut is in its extended position.
Patent GB-1516978-A (GB)
Title: Disazo dyestuffs
IPC: C09B44/04
Filed: 1975-10-01
Abstract: 1516978 Cationic disazo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Oct 1975 [28 Nov 1974] 51561/74 Heading C4P Disazo dyes free from SO 3 H and COOH groups having the formula: (where A is the residue of a primary aromatic or heterocyclic amine; B is the residue of a paracoupling primary aromatic amine; E is a group of formula where R is H or lower alkyl; R<SP>2</SP> is H, alkyl, alkoxy, acylamino or ureido; R<SP>3</SP> is H or R<SP>2</SP> and R<SP>3</SP> together with the C atoms to which they are attached form a fused ring optionally containing a hetero atom; Z is acyl; Q<SP>(+)</SP> is a cationic group attached directly or through a linking group to a ring atom of A, or forming a substituent on one of R, R<SP>1</SP> or R<SP>2</SP> or attached to a ring atom of E through a linking group and X<SP>(-)</SP> is an anion) are prepared by acylation of the corresponding dyestuff in which Z is H. The dyes are used for colouring synthetic polymeric materials, particularly polyacrylonitrile, polydicyanoethylene, polyester, polyamide, or cellulose ester in yellow brown to brown shades.
Patent GB-1375459-A (GB)
IPC: B23D77/04
Filed: 1972-11-08
Abstract: 1375459 Deburring and chamfering tool W HALPERN 8 Nov 1972 [20 Nov 1971] 51605/72 Headings B3N and B3C  A deburring device for a tapping tool comprises, a securing ring 4 securable to shank 1, a compression spring 6 carried by the securing ring and an annular deburring head connected to said compression spring and substantially coaxial with said securing ring and in use surrounding a cutting portion of the tapping tool, said head comprising, a mounting ring 13 connected to said compression spring, and a cutting ring 14 slidably connected to said mounting ring and having cutting edges and cutters 15, 16, co-operable with chip grooves of a tapping tool to prevent rotation of said head relative to the tool while allowing axial displacement of said head relative to the tool. The cutting edges operate when the tap is rotated anticlockwise only. Thus in use the tap enters a hole and the deburring head is moved against the action of spring 6. When the tap rotation is reversed the cutters deburr and cut a chamfer on the edge of a hole in a workpiece. The width of the chamfer is determined by the spring pressure and thus the positional setting of ring 4.
Patent GB-1134540-A (GB)
Title: Side band generator
IPC: H03B21/00
Filed: 1967-11-13
Abstract: 1,134,540. Modulators. CSF COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 13 Nov., 1967 [24 Nov., 1966], No. 51620/67. Heading H3R. A modulator for providing two pairs of sidebands corresponding to a carrier amplitude modulated by the same signal directly and in phase quadrature, comprises a source 1 of carrier signals which are equally divided at 2 and fed to respective phase modulators 3 and 4 which provide equal and opposite phase modulation by providing stepped changes of phase, the outputs of the modulators feeding a hybrid junction 6 which provides one pair of sidebands at its sum output and the other at its difference output. In Fig. 5 each phase modulator comprises N transmission line sections, each providing a phase-shift q, where 2Nq is equal to 2#, and the sections are switched in by the complementary outputs of a binary counter 51 driven by a clock pulse generator 50 operating at a frequency 2NF, where F is the required modulation frequency. As the counter is driven from 0 to 2N-1 the modulator 3 imposes phase-shifts increasing from 0 to (2N-1) q in steps of q and the modulator 4 imposes phase-shifts decreasing from (2N-1) q down to zero. The system may be applied to ILS transmitters where F is 90 or 150 c/s.; if N is greater than 6 any parasitic frequencies due to the step-wise modulation are outside the pass band of navigational receivers.
Patent GB-1469448-A (GB)
Title: Cephem derivatives and process for preparing them
IPC: C07D519/00
Filed: 1974-11-28
Abstract: 1469448 Cephalosporin derivatives HOECHST AG 28 Nov 1974 [29 Nov 1973] 51644/74 Heading C2C Novel compounds I (in which R 1 , R 2 , and R 3  are H or alkyl, or R 1  and R 2  or R 2  and R 3  together may form an optionally substituted alkylene radical; X is a single bond or -NH-; A is phenylene or thienylene, which may be substituted; Y is a single bond or -O- and Z is a 5-6 membered ring system which may form part of a fused ring or be substituted) and salts and esters thereof are prepared by: (1) reaction of a compound II the carboxyl group of which may be protected or in the form of a salt, with an acid III or a reactive derivative thereof, and, if necessary, removing the protective group; (2) reaction of a compound IV with a thiol Z-SH; or (3) formation of a salt or ester from the free acid. The acid chlorides of the acids III may be prepared by reaction of the acid with SOCl 2 . Pharmaceutical compositions, useful as antibiotics, comprise a compound I, together with a suitable diluent and/or carrier and are administered orally or parenterally.
Patent GB-1075019-A (GB)
Title: Improvements in or relating to solenoids
Inventor: CHUCHLA JERZY
IPC: H01F7/12
Filed: 1964-12-18
Abstract: 1,075,019. Electromagnets. ELECTRICAL REMOTE CONTROL CO. Ltd. Dec. 16, 1965 [Dec. 18, 1964], No. 51669/64. Heading H1P. A solenoid comprises a U-shaped yoke (A) within which is disposed a coil (E) encircling and attracting the upright limb of a T-shaped armature (D). Rectangular shading rings (F) and (G) encircle downwardly facing projections (B), (C) on the cross-limb of the armature, and establish an outphased magnetic field to retain the armature attracted when the alternating coil energization current passes through zero.