baber/WOPTO huggingface dataset:
Patent GB-581326-A (GB)
Title: Improvements in control of variable pitch propellers for braking purposes
IPC: B64C11/42
Filed: 1942-11-24
Abstract: 581,326. Variable pitch propellers. DE HAVILLAND AIRCRAFT CO., Ltd., and HARTNOLL, J. R. B. Nov. 24, 1942, No. 16661. [Class 135] A variable-pitch airscrew control mechanism includes a manually controlled means for concurrently diminishing the pitch of the airscrew blades to a braking position, disconnecting a governor controlled constant speed unit from the pitch changing mechanism and connecting said unit to the engine throttle. As shown, the pitch changing mechanism is operated by a shaft 15 rotated in one direction or the other by bevel gear, 21, 23 alternately coupled to an engine-driven shaft 1 by clutches 25, 27. These clutches are controlled by a relay valve 11 of the kind described in Specification 581,327. which valve includes a follow-up sleeve reciprocated by a shaft 13 coupled by bevel gearing to the shaft 15: In the position shown of a valve 9 actuated by a hand lever 37 a pipe 7, leading from a valve 31 actuated by a governor 3 on the shaft 1, is connected to a pipe 8 leading to the relay valve and the pitch changing mechanism is under the control of the governor. When the valve 9 is moved to the left, the pipe 7 is connected by a pipe 41 to a power cylinder 43 coupled to the engine throttle and the pipe 8 is connected to a pressure supply pipe 39 whereby the relay valve is moved to the position to cause the propeller blades to move to the braking position. When the valve 9 is moved back to connect the valve 11 to the governor, a valve 47 is opened temporarily to drain the relay valve actuating chamber. According to the Provisional Specification a pitch indicator may be operatively coupled to the relay valve, and Specification 563,212 also is referred to.
Patent GB-1140800-A (GB)
Title: A medicine for the treatment of diseases connected with inflammatory processes
IPC: C07D311/30
Filed: 1967-04-12
Abstract: 1,140,800. Preparing 4<SP>1</SP>-halo-flavones. FERLUX. 12 April, 1967 [26 April, 1966], No. 16697/67. Heading C2C. [Also in Division A5] 7-Hydroxy-4<SP>1</SP>-chloroflavone is prepared by reacting together 2,4-dihydroxy-acetophenone and p-chlorobenzoyl chloride to give 2,4-di-(4<SP>1</SP>- chloro benzoyloxy)-acetophenone; this compound is converted by treatment with potassium hydroxide in pyridine into 2,4-dihydroxy-4<SP>1</SP>- chlorodibenzoylmethane, which is cyclized to the required flavone with conc. H 2 SO 4 . 4<SP>1</SP>-Fluoroflavone is analogously prepared, from 4-fluorobenzoyl chloride and 2-hydroxyacetophenone, via 4-fluorobenzoyloxyacetophenone and 2 - hydroxy - 4<SP>1</SP>- fluoro - dibenzoylmethane. The sodium salt of 7-(3-sulphopropoxy)-4<SP>1</SP>- chloroflavone is prepared by reacting the sodium derivative of 7-hydroxy-4<SP>1</SP>-chloroflavone with 1,3-dihydroxypropane-3-sulphonic acid.
Patent GB-186132-A (GB)
Title: Improvements in and relating to alarum clocks
IPC: G04F3/02
Filed: 1921-06-17
Abstract: 186,132. Lowen, C. G., and Lingwood, C. P. June 17, 1921. Dials. - Relates to an alarm clock in which the going mechanism and the main portions of the alarm mechanism are of the usual construction for a drum type clock and in which the dial is graduated in minutes for a time space of one hour. Motion-work.-The motionwork is either altered, in that the motion wheel and hour hand are dispensed with, Figs. 1, 2; or is entirely dispensed with, Fig. 5. Alarm mechanism. -The hour-wheel c, Figs. 1 and 2, engages a pinion a<7> which engages the alarm cam-wheel b<5>; thus the escape cam b<4> and the wheel b<5> of the alarm train are rotated once an hour. In the arrangement shown in Fig. 5, the alarm cam b<4> is carried by the spring release catch g of the alarm mechanism and the minute-arbor a, which carries the set alarm nut, extends through the alarm cam b<4>. The trip pin g<1> is carried by the minute-arbor a<x>; and the cam b<4>, pin g<1> and the minute-hand are arranged so that the pin g<1> trips the catch g on the minute-hand reaching zero. Stop mechanism.-The stop mechanism comprises a bar f, Fig. 1, mounted to slide inside the case f, fitted with an operating-knob f<2> and provided with a springy blade f<4>. To stop the clock the knob is moved to draw the blade f<4> into contact with the balance-wheel a<6>. To restart the clock the knob is moved downwards and the blade f<4>, before breaking contact with the balancewheel gives it a push to start it rotating. Short-time movements.-To set the clock for giving an alarm after a predetermined interval, the minute-hand is moved to zero and the alarmsetting hand is moved to the desired position; on restarting the clock it runs for the required period and then gives an alarm. In the modification shown in Fig. 5, the minute-hand is set from zero, reading counter-clockwise to the period after which an alarm is required. The clock is then restarted and the hand travels to zero, whereupon the alarm is given.
Patent GB-329521-A (GB)
Title: Improvements in motor road vehicles for the conveyance of horses and other animals
IPC: B60P3/04
Filed: 1929-05-30
Abstract: 329,521. Vincent, W. J., and Vincent, H. E. May 30, 1929. Animal-carrying vehicles.-In motor road vehicles for carrying animals and goods the space at the side of the driver in utilized to extend the body on one side and the position of the side opening and its door or ramp is advanced. As shown, a portion a of the front is hinged to a fixed portion a' and is adapted to be swung forwardly to a door opening comprising a frame f which is advanced as shown to permit ease of ingress and egress. In travelling position the portion a may be held in alignment with the portion a<1> by a hinged or detachable seat d and a stop. The portion a may be arranged otherwise than by hinging. The portion a is provided with a shield k adapted to close a triangular opening in the canopy j. A rear ramp h is provided.
Patent GB-719836-A (GB)
Title: Improvements in and relating to mixing machines for concrete or like material
IPC: B28C9/04
Filed: 1952-07-04
Abstract: 719,836. Mixing appliances. DAELEN, F. L. M. VAN. July 4. 1952 [July 9, 1951], No. 16847/52. Class 86 In a mixing machine for concrete or the like, the component materials are fed in dosed quantities by separate dosage devices to a rotary mixing drum having its wall formed by an endless rubber band 16 which passes around a worm 13, Fig. 1a, fixed to a horizontal spindle 14 and over a stretching roller 17. The worm 13, which defines a helical passage within the drum is reinforced by ribs 15. The spindle 14 is driven by a motor in a box 2. A scraper 18 is arranged at the inside and along the whole width of the band 16. A water supply pipe 19 is mounted beneath the scraper 18 and may extend only on the last part of the mixing drum up to the delivery end. The materials, supplied from hoppers 20, 22, 23 pass through dosage devices mounted beneath the hoppers and fall on to a conveyer band 6 which charges them into the mixing drum. Dosage devices for sand and gravel consists each of a member 34, Fig. 2a, which comprises circular side walls carried on a sleeve freely mounted on a shaft 8, between which side walls, partitions 35 are hinged on pivots 36. A flange 33 is secured to the shaft 8 and the member 34 can be fixed in selected angular position to the flange. The partitions 35 are connected by levers 37 and links 38 to the flange 33 so that angular adjustment of the member 34 with respect to the flange 33 causes the partitions 35 to rotate into different angular positions in which they define spaces of varying volume content, whereby the discharge rate of the device can be regulated. The shafts 8 are driven from the motor in the box 2. The cement dosage device 21, Fig. 3b, beneath the cement hopper 20, is driven by a vertical spindle 4, and consists of a number of partitions 27 rotatably mounted about pins 26 extending radially from a box 25 secured to and rotatably driven by the shaft 4. The pins 26 carry offset lateral pins 28 which engage axial slots in the wall of a cylindrical member 31 which is rotatable with respect to the box 25 whereby to angularly adjust the partitions 27 and thereby alter the dosage rate of the cement.
Patent GB-639110-A (GB)
Title: Improvements in and relating to the removal from containers of caked material
IPC: C10K1/22
Filed: 1948-06-23
Abstract: 639,110. Removing caked oxide from purifiers. HOLMES & CO., Ltd., W. C., CULLINGWORTH, J. E., and COOPER, C. June 23, 1948, No. 16884. [Class 55 (ii)] [Also in Group II] A machine for facilitating the removal from containers of material which has caked hard therein as a result of chemical reactions, and especially for the removal of hardened spent oxide from fuel gas purifiers, comprises a gantry supported to be movable over the container, a carriage mounted on the gantry and movable lengthwise thereof and carrying a power driven rotatable vertical shaft with a cutting tool at its lower end, means being provided for raising and lowering the shaft and tool. As shown, the apparatus is positioned over a polygonal two-tier spent oxide container 1 which has a central cylindrical gas duct 2. The container is lifted from a tower purifier and placed over a pit 6, a stand 7 entering the duct 2. A vertical spindle 8 extends from the stand to pass through a link 11 which is secured between and supports two longitudinally extending members 13, which form the gantry, the members being supported at their outer ends by legs 14 having wheels 15. A carriage 20 carried on rollers 21, can be moved to a fro along members 13 by a chain 56 driven by a motor 40, and carries a shaft 22 having a cutting tool 23 at its lower end. The shaft is driven through a gearbox 25 by a motor 27 and can be raised or lowered by hand by pulling on a chain 39 which rotates a nut 34 engaging a threaded shaft 33 attached to the gearbox. In operation a hole is first drilled through the caked oxide and supporting grids and the oxide then broken up by traversing the rotating tool across its surface. Motor 27 is then stopped and a rake is attached to the shaft 22, the loose oxide being raked to fall through the hole into pit 6.
Patent GB-676489-A (GB)
Title: Improvements in or relating to gramophone pick-ups
IPC: G11B3/08
Filed: 1950-07-06
Abstract: 676,489. Supporting gramophone pick-ups. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 6, 1950. [July 9, 1949] No. 16902/50. Class 40 (ii). In a gramophone pick-up arm assembly in which the vibratory axis 14 of the head is set at an angle with regard to a vertical plane AA passing through the pivot 4 and the needle point 9, the head is weighted at 7 so that the masses are equally distributed each side of the aforementioned plane AA, and the rigidity of the arm 2 is such that the torsional resonance frequency is less than 200 cycles/sec.
Patent GB-1164897-A (GB)
Title: Gas Cleaning Apparatus
IPC: C21B7/00
Filed: 1967-04-12
Abstract: 1,164,897. Gas scrubber. S. P. KINNEY ENGS. Inc. 12 April, 1967 [1 Aug., 1966], No. 16906/67. Heading B1R. Gases are scrubbed by passage downwardly through a duct containing a venturi tube 5 secured in an inclined plate 4, the gas being sprayed with liquid from a nozzle 20 arranged in the wall of the duct. An adjustable baffle is positioned below the venturi-tube and a plate 18 shields the pivoted mounting 7 of the baffle. In a modification the liquid spray nozzle extends a short distance into the duct.
Patent GB-425339-A (GB)
Title: Device used in radio receivers for improving radio receiving
IPC: H01F21/12
Filed: 1934-06-07
Abstract: 425,339. Wireless receiving-apparatus. HORAT, A. SCHWIENBACHER-, Solothurn, Switzerland. June 7, 1934, No. 16968. Convention date, July 24, 1933. [Class 40 (v)] [See also Group XXXVI] An inductance comprising windings 4, 5, 6, 8 each corresponding to a different waveband, is connected, without being coupled thereto, in parallel with the main oscillatory circuit of a receiver and in series with the aerial. The windings 4, 5, 6, 8 are each constituted by 20, 40, 4 and 100 turns, and are adapted to be connected into the circuit according to the wave length being received.
Patent GB-1133783-A (GB)
Title: Embossing thermoplastic material
Inventor: NORCROSS KENNETH
IPC: D06N7/00
Filed: 1966-04-20
Abstract: 1,133,783. Embossing. NAIRN-WILLIAMSON Ltd. 13 April, 1967 [20 April, 1966], No. 17296/66. Heading B6J. Thermoplastic material 3 is embossed by feeding on to a belt 3 of a silicone elastomer bearing a negative of the required pattern, passing the belt and material through a zone where they are subjected to heat and pressure to melt the thermoplastic material and press it into the pattern on the belt, cooling the belt and thermoplastic material in a cooling zone and finally stripping the material from the belt. Heat may be supplied from roller 4 and pressure by secondary belt 5 and rollers 6. The material and belt may be separated at 7. The thermoplastic material may be a polyurethane, a polyvinyl chloride, a polyethylene, a polypropylene or a polyamide. The process is applicable to the production of leathercloth where an adherent coating of the thermoplastic material is applied to a fabric backing composed of natural or synthetic fibres or both, e.g. cotton, viscose or nylon and the coating is embossed in contact with the belt 3. A key compound, e.g. a mixture of a vinyl chloride/vinyl acetate copolymer and polyurethane precursors, or a mixture of low molecular weight thermoplastic polyurethane and polyvinyl chloride, may be applied to assist adhesion of the fabric and thermoplastic coating. The fabric may bear a first coating of polyvinyl chloride and a further coating of a polyurethane adhered to the P.V.C. with a key compound.
Patent GB-185877-A (GB)
Title: Improvements in burners for liquid fuel
IPC: F23D3/00
Filed: 1921-06-25
Abstract: 185,877. Southey, A. W. June 25, 1921. Vaporizing-apparatus; vapour burners, solid flame.-A liquid-hydrocarbon burner comprises a wick having a considerable portion of its side surface exposed, sufficient air being admitted to the lower part and insufficient air to the upper part of the exposed portion to support combustion so that the hydrocarbon fed to the upper part is vaporized by the heat of the flame at the lower part. The mixture of vapour and combustion products with air is subsequently burnt as a Bunsen flame. In the burner illustrated, the tubular wick 5 and an inner metal sleeve 6 are carried by a sleeve 3 which is adjustable in a fixed sleeve 2 on an oil-reservoir 1. A disc 10 rests on the upper end of the wick and carries a Bunsen tube 13 on a central spindle 9 and a spider 12. The spindle 9 fits in a funnel-mouthed tube 8 carried by an arm 7 on the sleeve 3. The flame-restricting means consist of a truncated metal cone 15 having perforations in its upper end. The cone 15 is attached to the lower end of the Bunsen tube 13 by perforated cylindrical and annular metal parts 16, 17. In use, a blue flame burns just above the top of the sleeve 3, and the combustion products, vapour rising from the upper part of the wick, and air admitted through the pgrts 15, 16, 17 pass up the tube 13 and burn at the top above a preferably composite perforated metal plate 14. The flame is extinguished by lowering the sleeve 3 and placing a cap 19 on the upper end of the tube 13.
Patent GB-220771-A (GB)
Title: Improvements in the catalytic production of hydrocyanic acid
IPC: C01C3/02
Filed: 1923-07-05
Abstract: A catalytic agent for the preparation of hydrocyanic acid by the interaction of carbon monoxide and ammonia or by the dehydration of formamide or ammonium formate, comprises an alumina having a vitreous surface with a transparent and microporous body.  The alumina may be obtained by precipitating a solution of an aluminium salt, such as the nitrate, with ammonia, washing and drying the product, and heating it rapidly.  Other metal oxides or hydroxide, e.g. of thorium, zirconium, and uranium, may be precipitated with the aluminium hydroxide or may be added subsequently, provided they do not affect the vitreous and transparent character of the product. Other bodies, e.g. grains of silicates, may also be mixed with the alumina.ALSO:Hydrocyanic acid is prepared by the interaction of carbon monoxide and ammonia, or by the dehydration of formamide or ammonium formate, using as catalyst an alumina having a vitreous surface with a transparent and microporous body.  The alumina may be obtained by precipitating a solution of an aluminium salt such as the nitrate with ammonia, washing and drying the product and heating it rapidly.  Other metal oxides or hydroxides, e.g. of thorium, zirconium and uranium, may be precipitated with the aluminium hydroxide or may be added subsequently, provided they do not affect the vitreous and transparent character of the product. Other bodies, e.g. grains of silicates, may also be mixed with the alumina.  For the production of hydrocyanic acid, a mixture of carbon monoxide and ammonia, together if desired with other gases such as hydrogen or nitrogen, is passed over the contact mass maintained at a temperature of 500-700 DEG  C.  Alternatively, formamide or ammonium formate, which may be prepared by the interaction of carbon monoxide and ammonia under pressure in the presence of water, is passed over the contact mass at a temperature of 300 DEG  C.
Patent GB-317944-A (GB)
Title: Improvements in gas controllers, electric time switches and other timing devices
IPC: F23Q9/02
Filed: 1928-06-18
Abstract: 317,944. Horstmann Gear Co., Ltd., and Horstmann, A. June 18, 1928. Driving-mechanism, main-spring. - A clockwork gas controller or electric time switch in which a timing dial C rotates once in 24 hours and carries adjustable levers to operate the gas cock or electric switch, is provided with a going barrel A which has a concentric hollow boss a<2> having a slit or slits a<11> therein to grip frictionally in the central hole of the dial plate. The slits may be helical as shown in Fig. 11. Fig. 1 shows the application of the invention to the clockwork mechanism and going barrel of Specification 295,296. a<8>, Fig. 2, is the squared key end of the arbor a<3> which rotates inside the boss a<2> to wind up the inner end of the spring. The invention is also illustrated as applied to the clockwork mechanism of Specification 23161/09. If desired, after adjustment of the dial plate on the boss a<2> the two may be held together by the clamping device C<2> described in Specification 23161/09. The known art is illustrated in which the boss of the barrel is an unslit hollow boss and a slit boss is provided on the dial plate. Specification 2588/13 also is referred to.
Patent GB-448588-A (GB)
Title: Improvements in and relating to electrical brake pressure regulators for railway vehicles
IPC: B60T8/32
Filed: 1935-06-18
Abstract: 448,588. Railway brakes. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. June 18, 1935, No. 17561. Convention date, June 19, 1934. [Class 103 (i)] An electrical brake-pressure regulator for fluid-pressure brakes comprises contacts 12 operated by brake cylinder pressure in a cylinder 9 controlling an electrically-operated brake cylinder relief-valve 8 which is opened above a certain pressure and a relay operable in response to a certain speed of the vehicle which renders this control inoperative. The relief valve 8 is opened when its circuit is closed through contact I of relay 13, the circuit of which is closed through contact I of a relay 14 and contacts 12 when brake cylinder pressure is above a certain limit. An impulse transmitter 17 driven from the vehicle axle momentarily energizes a frequency relay 16 at 28 m.p.h. which establishes a circuit through the attraction winding of the relay 14 which opens its contact I and closes its contact IV and renders the circuit of the relay 13 and thus the relief valve inoperative. Contact III closes a holding winding for the relay 14 through the contact I of the relay 15 and through the impulse transmitter 17 and maintains the relay 14 energized until the speed drops to 12-15 m.p.h. When the brake is applied above 28 m.p.h. the relief valve is not opened even if the contacts 12 are closed because the contact I of relay 14 is open. When the speed falls to 28 m.p.h. and brake cylinder pressure is sufficient to close the contacts 12, the relay 16 closes a circuit through the relay 15 and contacts 12 and this relay holds itself energized by its second winding over its contact II and contacts 12. The relay 15 closes a circuit for the relief valve 8 thrugh its contact III which opens and remains open till brake cylinder pressure falls sufficiently to allow the contacts 12 to open. Opening of the contacts I of the relay 15 will release the relay 14 again. If the impulse transmitter drive fractures the relay 14 de-energizes the relay 13 energizes and opens the relief valve to limit the brake pressure. A lighting dynamo may be used instead of the impulse transmitter. A minimum pressure valve may be arranged between the brake cylinder and the relief valve 8 which ensures relief of the brake cylincter pressure even if the battery should fail. This minimum pressure relief valve connects the brake cylinder to the relief valve above a certain pressure.
Patent GB-674967-A (GB)
Title: Pedal-operated hydraulically propelled cycle
IPC: B62M19/00
Filed: 1949-07-04
Abstract: 674,967. Hydraulic couplings. DUNLOP, J. A. July 4, 1949, No. 17562/49. Class 69 (ii) [Also in Group XXXI] A cycle propelled by hydraulic mechanism comprises an eccentric fluid motor A operated by a twin cylinder reciprocating pump having two pistons U, V mounted on a common connecting rod W. Two crank levers J, K are attached to pinion segments R, S which on oscillation of the levers J, K .cause the racked connecting rod W to reciprocate within cylinders F, G, thus operating pistons U, V. Fluid contained in cylinders F, G is displaced and expelled along tube members D, E through a vane-type fluid motor A which is in constant mesh with the cycle road wheel. Braking is effected by closing the flow at valve B. A fluid bye-pass valve C allows free rotation of the road wheel when the crank levers J, K are stationary.
Patent GB-1364410-A (GB)
Title: Tiltable drivers cab for a commercial motor vehicle
IPC: B62D33/07
Filed: 1973-04-13
Abstract: 1364410 Tilting cabs KLOCKNER-HUMBOLDT-DEUTZ AG 13 April 1973 [21 April 1972] 18000/73 Headings B7B and B7D A mounting arrangement for a tiltable driver's  cab 1 comprises a cross-shaft 6 supported on the vehicle frame with lever arms 7 extending from the ends of the cross-shaft and connected to the cab 1 to the rear of the cab's centre of gravity 8, means being provided to tilt the cab about the axis of the cross-shaft. In order to tilt the cab into the position shown the hydraulic jack 9 first pushes a swing link 10 against the check plate 12 for the cab to tilt. As soon as the centre of gravity 8 moves forward the swing link 10 pulls over into contact with stop 13.
Patent GB-313524-A (GB)
Title: Improvements in synchronous electric motor systems
IPC: H04N5/067
Filed: 1929-06-12
Abstract: 313,524. Karolus, A. June 13, 1928, [Convention date]. Frequency, changing. - Synchronous electric motors suitable for television and other apparatus are fed from mains of low frequency transformed or tuned up to higher harmonic frequencies, and are used either as driving motors of the apparatus or as auxiliary synchronous motors coupled to main driving-motors. In one arrangement an alternating current network 1 supplies a 50-cycle current to a main motor 5, and current of tuned-up frequency to a synchronous motor 10. A frequency transformer 6, 8 has a variable resistance 7 to vary the current through the primary winding 6, the secondary winding 8 being tuned with the inductance of the motor 10 and the variable capacity 9 to a higher harmonic of the feed system e.g. 500 cycles. The picture transmission apparatus 11 is connected to the common shaft of the motors 5, 10, and motor 5 maintains synchronism with motors similarly fed by the circuit 1. The frequency transformation may be obtained by other means such as by the use of glow or arc discharge tubes. Rectification may be used to obtain frequency duplication.