baber/WOPTO huggingface dataset:
Patent GB-658797-A (GB)
Title: Improvements in wave guide-to-co-axial line transformers
IPC: H01P5/103
Filed: 1948-12-15
Abstract: 658,797. Wave-guides. BRITISH THOMSON-HOUSTON CO., Ltd., TAYLOR, H. B., and WATTS, A. J. Dec. 15, 1948, No. 32454. [Class 40 (viii)] In a broad band coaxial line to wave-guide transformer, a flaring intermediate portion is connected between the inner conductor of the line and the inner surface of the wave-guide with the axis of the flaring portion inclined to the axis of the line so as to couple a coaxial line to a wave-guide which are in line with each other. As shown, the inner conductor 3 of a coaxial line 1 is bent round and connected at 4 to the inner surface of a wave-guide 2. The end 4 of the inner conductor is flared, one edge of the flared portion being perpendicular to the wave-guide wall. The wedge-shaped termination may be made by soldering the inner conductor into a hole drilled in a conical metal block and shaping the assembly. A locating peg is formed on the face of the termination 4, co-operating with a recess in the wave-guide wall.
Patent GB-1057780-A (GB)
Title: Electromagnetic relays
IPC: H01H51/22
Filed: 1964-08-10
Abstract: 1,057,780. Electromagnetic relays. AMERICAN MACHINE & FOUNDRY CO. Aug. 10, 1964 [Aug. 30, 1963], No. 32469/64. Heading H2B. In a magnetically-held relay the electromagnetic structure and permanent magnet holding structure are mounted side-by-side in a plane spaced from and generally parallel to the base and the contact assembly is mounted between the plane and the base. The electromagnetic structure comprising a two-coil core 37, flat end pieces 42 secured to the opposite ends of the core, polepieces 51, 52 each secured to one of the end pieces, and a balanced armature 4 co-operating with faces 55, 56 of the polepieces 51, 52, is mounted on a bracket 5 secured to base 1. The permanent magnet structure, comprising permanent magnets 47, 48 separated by a magnetic member 49, is secured to end pieces 42. The armature is pivoted in bearings 68, 70 provided in bracket 5 and a bracket 71 secured to the permanent magnet structure. Wires 75, 76 depending from the armatures actuate changeover contact spring sets 32, 33, 35 and 30, 31, 34 on the base 1. The armature is moved to its alternative positions by oppositely acting windings 38, 39 and is retained in each position by one of the permanent magnets.
Patent GB-1045358-A (GB)
Title: Improvements in and relating to presses
Inventor: WEIGELT RUDOLPH
IPC: F16P3/04
Filed: 1964-08-10
Abstract: 1,045,358. Machinery safety devices. COROCRAFT MANUFACTURERS Ltd. July 26, 1965 [Aug. 10, 1964], No. 32483/64. Heading F2J. In a press, a tool 4 is carried by a plunger 1 slidably mounted in a sleeve 3 attached to the press ram, and locking means automatically lock the plunger 1 to the sleeve 3 at a predetermined position in the working stroke, for example, when the clearance between the tool and the workpiece is a practical minimum. The locking means comprises a bell-crank lever pivotally mounted on the sleeve 3 and having an arm 7 carrying a hook end 18 which is adapted to engage a stop 16 on the plunger 1 when a counterweight 19 carried by an arm 8 engages an adjustable fixed stop 20. The plun- ; get 1 may be spring-loaded so as to be urged outwardly of the sleeve 3. In a modification, the plunger 1 is mounted directly in the pressram.
Patent GB-730906-A (GB)
Title: Naphthalene derivatives
IPC: C07C35/36
Filed: 1952-12-22
Abstract: The invention comprises 3-(6-alkoxy-2-naphthyl-)- D 2-cyclohexenone-1 compounds of the formula <FORM:0730906/IV (b)/1> wherein R represents an alkoxy group, R1 represents a carbonyl (= O) group and there is a double bond between positions 2 and 3 of the cyclohexyl ring), and their preparation from 2 - acetyl - 6 - alkoxy naphthalene by a Mannich reaction with para-formaldehyde and a dialkylamine, followed by condensation of the 2-(b -dialkylaminopropionyl)-6-alkoxy naphthalene with an acetoacetic ester in the presence of an alkali metal.  The novel cyclohexenones may be reduced, (a) by hydrogen and palladium to yield a 3-(6-alkoxy-2-naphthyl)-cyclohexanone; (b) by hydrogen and platinum to yield 3-(6-alkoxy-2-naphthyl)-cyclohexanol; or (c) by aluminium iso-propoxide to yield 3-(6-alkoxy-2-naphthyl)-D 2-cyclohexenol-1.  The cyclohexanone compounds may also be reduced with hydrogen and platinum oxide to the corresponding cyclohexanols. Treatment of the novel 6-alkoxy-cyclohexenones with aluminium halides in an inert solvent produces the parent 6-hydroxy compound, which can be reduced as in (a), (b) and (c) above, and further with Raney nickel and hydrogen in an autoclave yields 3 - (6 - hydroxy - 5 : 6 : 7 : 8 - tetrahydro - 2 - naphthyl) - cyclohexanol - 1.  In examples: (1) ethanolic 2-acetyl-6-methoxy naphthalene, paraformaldehyde and dimethylamine hydrochloride are refluxed to yield 2-(b -dimethylaminopropionyl) - 6 - methoxy naphthalene hydrochloride, which on treatment with potassium and methyl acetoacetate in tertiary butyl alcohol gives 3 - (6 - methoxy - 2 - naphthyl) - D 2-cyclohexenone-1.  The corresponding ethoxy, propoxy, n-butoxy and pentoxy compounds are similarly obtained.  (2) 3-(6-Methoxy - 2 - naphthyl) - D 2 - cyclohexenone - 1 in dioxane is reduced with hydrogen using palladium charcoal catalyst to give 3-(6-methoxy-2-naphthyl)-cyclohexanone.  (3) The product of (1) on reduction with hydrogen and platinum in ethanol yields 3-(6-methoxy-2-naphthyl)-cyclohexanol, also obtained from the product of (2) by reduction with hydrogen and Adam's catalyst in ethanol. (4) The product of (1) upon treatment with aluminium isopropoxide in benzene and isopropanol yields 3 - (6 - methoxy - 2 - naphthyl) - D 2 - cyclohexenol - 1 after acid hydrolysis.  (5) The product of (1) is refluxed in xylene with aluminium chloride to give 3-(6-hydroxy - 2 - naphthyl -) - D 2 - cyclohexenone - 1.  (6) The product of (5) is treated as in (2) to give the 6-hydroxy-cyclohexanone, which on further reduction with a platinum catalyst yields 3 - (6 - hydroxy - 2 - naphthyl) - cyclohexanol, also obtained directly from the product of (5) by use of a nickel catalyst.  (7) The 6-hydroxy- D 2-cyclohexenone-1 is acetylated and then treated with aluminium isopropoxide to give 3-(6-acetoxy - 2 - naphthyl) - D 2 - cyclohexenol - 1.  (8) Hydrogenation of the 6-hydroxy- D 2-cyclohexenone-1 in an autoclave using a nickel catalyst yields 3-(6-hydroxy-5 : 6 : 7 : 8-tetrahydro-2-naphthyl)-cyclohexanol-1.
Patent GB-365667-A (GB)
Title: Improvements in valves for controlling the delivery of liquids
IPC: B67D7/50
Filed: 1930-10-29
Abstract: 365,667. Valve-actuating mechanism. WAGSTAFF, G. F., Brookfield, Newbold Road, Chesterfield, Derbyshire, and WAYNE TANK & PUMP CO., Ltd., 42, Newlands Park, Sydenham, London. Oct. 29, 1930, No. 32517. [Class 135.] In a valve of the direct-lift type in which the valve is biased to the closed position by a spring and/or by the pressure of the controlled liquid a manually operable lever is arranged so that it has a greater mechanical advantage a the beginning than at the end of the opening m o v e - ment. As shown in Fig. 2 the operating lever 8 engages the end of the valve stem 6 and during the initial stages of the valve opening it pivots on a fixed projection 16. After a preliminary movement the upper end of a slot 9 in the lever 8 engages a fixed pin 10 and the latter then becomes the fulcrum for the lever 8. In a modification the lever 8, Fig. 3, engages the end 21 of a lever 17 during the beginning of the opening movement and engages an intermediate point 22 on the lever 17 during the final part of the opening movement, the lever 17 being pivoted at 19 and engaging the valve rod 6 intermediate its length. Alternatively the point of contact between the levers 8, 17 may gradually approach the valve rod 6 during the opening movement.
Patent GB-382103-A (GB)
Title: Improvements in carriers for lamp shades
IPC: F21V1/06
Filed: 1931-11-24
Abstract: 382,103. Shade holders. HAMLYN, S. W. and DERNIER & HAMLYN, Ltd., L., 23, Newman Street, Oxford Street, London. Nov. 24, 1931, No. 32549. [Class 75 (ii).] A collapsable carrier for lampshades comprises two or more rings 1, 7 each of which carries a pair of wire or like rods 3, 5, joined together at their tops so as to form a frame lying in a single plane, the tops of the frames being adapted to intersect to form a cage-like carrier. The cross-bars 4, 6 have U-bends 8, links, coincident threaded holes (for a clamping-screw), complemental snap fasteners, or other means of connection. Slotted lugs 9 on the upper ring engage with the rods 3 when the carrier is assembled.
Patent GB-1119141-A (GB)
Title: Improvements in or relating to slotting or shaping machines
Inventor: WAGNER RICHARD
IPC: B23D13/00
Filed: 1965-07-29
Abstract: 1,119,141. Planing. WERKZEUGMASCHINENFABRIK ADOLF WALDRICH. 29 July, 1965, No. 32568/65. Heading B3L. A slotting machine comprises a doublearmed lever 7 on which a tool 8 can be mounted to face in one or the opposite direction and abutment surfaces 9a, 9b corresponding to the respective cutting positions of the lever according to which direction the tool faces. The lever is oscillated by a crank 13 driven mechanically, electrically, or by fluid-pressure. In the latter case, gearing 16, 17, Fig. 5, is oscillated by a piston-and-cylinder device 15, which can be adjusted by a screw 18 and nuts 19 to determine the position of its stroke.
Patent GB-1152726-A (GB)
Title: Novel Process for the Preparation of Polyester.
IPC: C08G63/78
Filed: 1966-07-20
Abstract: 1,152,726. Polymerisation apparatus. TEIJIN Ltd. 20 July, 1966 [20 July, 1965], No. 32603/66. Heading B1X. [Also in Division C3] In apparatus for the preparation of a terephthalate polyester, terephthalic acid from tank I is fed via worm 2 into esterification vessel 3, which is divided' into chambers, each having stirrer blades with a common shaft, where it reacts with oligomer (A) to give as product an oligomer (B); part of oligomer. (B) is fed via pump 6 to tower 9 in which it is depolymerized by reaction with a glycol, supplied via pump 7 and preheater 8, to give the lower oligomer (A) which is recycled to vessel 3 via pump 11; the remainder of oligomer (B) being removed to a polymerization apparatus via pump 10'. Alternatively the whole of oligomer (B) is depolymerised in tower 9 and the product fed to the polymerization apparatus via pump 10. Steam is removed from vessel (3) via distillation column (4) and condenser (5).
Patent GB-604731-A (GB)
Title: Improvements in or relating to hydraulic accumulators
IPC: F15B1/10
Filed: 1945-12-03
Abstract: 604,731. Hydraulic accumulators. BENDIX AVIATION CORPORATION. Dec. 3, 1945, No. 32619. Convention date, Jan. 13. [Class 69 (ii)] In a hydraulic accumulator the bladder 17 is provided with spaced bosses 28 for initially containing the shell 10 upon distension of the bladder thereby providing paths for escape to the opening 11 of working fluid trapped between the bladder and the shell. A reinforcement 25 secured to the bladder opposite the opening 11 is provided with bosses 30 to define passages for escape of fluid into the opening when the bladder is pressed thereagainst, the reinforcement preventing extrusion of bladder material into said opening.
Patent GB-534925-A (GB)
Title: Improvements in stands and supports for lamps and other articles
IPC: F21V21/06
Filed: 1939-12-20
Abstract: 534,925. Stands and supports for lamps &c. WOLFF, W. S. Dec. 20, 1939, No. 32635. [Classes 52 (iii) and 52 (v) ] A support for a lamp or other article comprises a flexible arm c, Fig. 3, connected at one end to the lamp &c. e and secured at the other end to a sleeve a having an axial bore to receive a clamping screw j and a lateral bore for attachment, for example, to a pillar q, or to a peg on a table clamp, or sewing machine. The sleeve a may be supported within an extension sleeve clamped to a base by the screw j. A ring may be provided on the screw to allow the support to be suspended from a nail in a wall.
Patent GB-1130159-A (GB)
Title: Improvements in or relating to bucket ladder excavators
IPC: E02F7/10
Filed: 1966-07-20
Abstract: 1,130,159. Bucket ladder excavators. MASOHINENFABRIK BUCKAU R. WOLF A.G. 20 July, 1966 [28 July, 1965], No. 32685/66. Heading E1F. In the use of a bucket ladder excavator crushed and sludged excavated material is pumped from a storage tank 7 on the excavator 3 to a fixed delivery pipe 45 through a flexible pipe 16a, 16b that passes about a rotatable wheel 10 on a trolley having half the travel of the excavator along a face 1 of a working 2, the trolley at all times moving simultaneously with, in the same direction as, and at half the speed of the excavator. For correctly relating movement of the trolley to that of the excavator either a winch 36 and ropes 21, 22 or a rope 21 is used.
Patent GB-631234-A (GB)
Title: Improvements in or relating to unloading or discharging of coal or other minerals at mine shafts
IPC: B66B17/20
Filed: 1946-03-06
Abstract: 631,234. Handling and discharging mine cars. LODGE, W. B., and CORDEN, G. A. March 6, 1946, No. 32749/48. Divided out of 624,610. [Class 78 (iv)] Pit-head plant for discharging mine cars C, received from a pair of cages A operating in a single shaft, comprises tipplers B located at either side of the cages together with carriages F, F<SP>1</SP> running transversely across the ends of the cages for carrying full cars from either cage to its tippler and empty cars back from the tipplers to the cages. Rams D thrust the empty cars from the carriages F into the cages, simultaneously pushing the full cars out of the cages to the carriages F<SP>1</SP>. After traversing the carriages F<SP>1</SP>, rams D<SP>1</SP> thrust the full cars into the tipplers whilst pushing previously emptied cars out of the tipplers onto the carriages F for return to the cages.
Patent GB-283335-A (GB)
Title: Improvements in, or relating to, window and casement fastenings
IPC: E05C3/04
Filed: 1926-12-28
Abstract: 283,335. Erebus Manufacturing Co., Ltd., and James, J. E. Dec. 28, 1926. Casement fasteners, cockspurtype; sash fasteners, pivotedarm type; sliding bolts. - The casement lever C is locked shut by a sliding bolt G, handoperated by a knob H and secured by a key-operated bolt. The bolt G slides in a casing F carried by the plate E of the keep D and has two or three notches engaged by one or two projections on the key-bolt. With double windows, the bolt G enters a notch in the lever C. With sash windows, the bolt engages the knob on the lever arm. The bolt G may be operated directly by a key instead of by a handle.
Patent GB-863457-A (GB)
Title: Vertical reference-defining apparatus
Inventor: WING WILLIS G
IPC: G01C19/44
Filed: 1957-03-22
Abstract: 863,457. Navigation systems. SPERRY RAND CORPORATION. March 22, 1957, No. 32763/60. Divided out of 863,456. Drawings to Specification. Class 40 (1). The subject matter of this Specification is identical with that of Specification 863,456 but the claims are directed to gyroscopic apparatus stabilizing the position of a platform mounted on a craft and controlled by a first signal dependent on the angular velocity of the platform in space and a second signal dependent on errors in the first signal.
Patent GB-1477017-A (GB)
Title: Control arrangement for controlling rectifier elements of a static current converter
IPC: H02P7/292
Filed: 1974-07-24
Abstract: 1477017 Controlling rectifiers SIEMENS AG 24 July 1974 [30 July 1973] 32779/74 Heading H2F [Also in Division G3] In a control arrangement for controlling the current in a static converter operable to pass both continuous and non-continuous current to a load, e.g. a D.C. motor, a load simulator, for simulating during a period when the current is non-continuous, the load conditions which would prevail if the current were continuous, comprises a multiplier 10 arranged to vary its multiplication factor in such a period and a delay 11 arranged to act only during current gaps in said period. Fig. 1 (not shown) relates to a conventional three-phase bridge of thyristors feeding current from A.C. supply to the armature of a separately excited D.C. motor. A tacho dynamo provides a speed signal to a speed controller, the output signal I* of which is compared with the current I on the A.C. side of the converter and fed to a current controller 5 having a delay circuit 11 switched in only during gaps in the current and feeding a multiplier 10 in the form of an amplifier whose gain is adjusted according to a function generator 17 so as to simulate the response of the circuit during continuous operation. The state of a bi-stable 27 is changed by the output of a limit stage 28 in response to the commencement of a current gap 14. The state of the bi-stable 27 is monitored by means of two monostable flip-flops 25, 26 each having a relaxation time somewhat longer than the period of the pulse frequency of the static converter and control a further limit device 52 which, in turn, controls two FETs 18, 23 arranged so as to connect capacitor 19 in the feedback path of amplifier 21 during non-continuous operation only and so delay the response. An AND gate 37 controls an integrator 29 arranged so as to feed a signal to a function generator 17 so as to vary the gain of amplifier 10 in dependence on whether the current is continuous or non-continuous. The function generator 10 may comprise a plurality of biased diodes arranged to control the input or feedback of an amplifier. It is suggested that the time constant of the delay 11 may be equal to three times the period of the current pulse frequency and the gain of amplifier 10 may be ten times that during continuous current flow. In Fig. 9 (not shown) the multiplier may take the form of an amplifier having its gain controlled by FET in the feedback path and connected ahead of stage 5 which is formed by an amplifier having RC feedback so as to provide proportional and delay characteristics. The delay 11 is connected after the control stage 5.
Patent GB-412486-A (GB)
Title: Improvements in or relating to electrically driven percussive tools
IPC: B25D11/10
Filed: 1933-11-23
Abstract: 412,486. Percussive drills. KAPITAL & INDUSTRIEWERTE AKT.-GES., 2, St. Albananlage, Basle, Switzerland. Nov. 23, 1933, No. 32821. Convention date, Nov. 23, 1932. [Class 124.] A percussive tool has four hammers b, c of quadrantal cross-section which are pressed downwards by springs o to strike the anvil block f carrying the tool. The hammers are raised by the cam g which is rotated by the electric motor l through gearing. Each hammer has a pivoted leg h carrying a roller t to engage the edge of the cam.
Patent GB-922426-A (GB)
Title: A process for melting a rod of semi-conductor material zone-by-zone
IPC: C30B13/30
Filed: 1960-09-23
Abstract: In the passage of a molten zone through a vertical rod 2, held at each end, by means of an induction heating coil 5 with simultaneous stretching to produce a narrower rod 3 (Fig. 1), the diameter of the rod at the level of transition from the molten to the solid state is maintained constant by projecting an image of radiation (Fig. 2) from the rod at said level on to a plane 7a containing two radiation detectors 6a and 6b spaced apart a constant distance corresponding to the desired diameter at said level, the spaced <PICT:0922426/III/1> <PICT:0922426/III/2> radiation detectors actuating control means which maintains one of the spaced radiation detectors at one edge of the image and controls the variables of the method such that the other edge of the image coincides with the other spaced radiation detector. Each spaced radiation detector may comprise two spaced parts between which the respective edge of the image is adapted to lie, and may be responsive to heat or light.  The spaced radiation detectors may be fixed in relation to the induction coil, or a further radiation detector may actuate means which maintains the spaced radiation detectors at the said level.  A strong beam of light may be projected from behind the rod on to the plane, in which case the image is one of comparative darkness.  In one embodiment (Fig. 3), an induction coil 5 fed with power from a high frequency generator 10 of constant frequency is maintained stationary and the spaced radiation detectors 6a and 6b effect variation in the speed of pulling of the narrower rod 3 from the molten zone while variation in the current in the induction coil 5 is utilized to vary the speed of feed of rod 2 to the molten zone so as to maintain the diameter of the molten zone constant. In another embodiment (Fig. 4), the speed of pulling of the narrower rod 3 is maintained constant and the spaced radiation detectors 6a and 6b effect variation of the frequency of the high frequency generator 10 with consequent variation of the speed of feed of rod 2 to the molten zone while maintaining the diameter of the molten zone constant.  In a modification (not shown), the frequency is maintained constant and the spaced radiation detectors effect direct variation of the of speed of feed rod 2. In a further modification (not shown) the speed of pulling and feeding is maintained constant and the spaced radiation detectors effect change in the frequency.  Specification 861,135 is referred to.
Patent GB-1514860-A (GB)
Title: Process for converting naturally occuring hydrocarbon fuels into gaseous products by an arc heater
IPC: C10J3/46
Filed: 1976-08-09
Abstract: 1514860 Use of arc heaters in the production of gaseous fuels WESTINGHOUSE ELECTRIC CORP 9 Aug 1976 [11 Aug 1975] 33033/76 Heading C5E Gaseous hydrocarbon fuels are prepared by providing a poly-phase arc heater system, such as that shown in Fig. 2 constituted by number of arc heaters 35, 37 and 39 having arc chambers communicating with a central housing chamber 33, striking an electric arc in an axial gap 45 between hollow, cylindrical electrodes 41, 43 spaced along a common axis that form the arc chamber in each of the intercommunicating arc heater chambers, the arc being maintained at a temperature for at least a portion of its life sufficient to produce free hydrocarbon radical ions from hydrocarbon fuel, introducing a hydrocarbon gas 47 selected from methane, ethane, propane, butane, acetylene, natural gas, and mixtures thereof, with or without hydrogen, through the gap in a direction generally transverse to the axis to thereby elongate the arc to produce a temperature therein sufficiently high to produce the free hydrocarbon radical ions from the hydrocarbon gas and to cause the arc in each arc heater to flash through the central housing chamber and into another arc heater, feeding into one end of the central housing chamber naturally occurring hydrocarbon fuel 49 such as coal or oil through the arc chamber and into the region of the free hydrocarbon radical ions whereby to chemically react with the ions to produce a stream of gaseous hydrocarbon fuel, and withdrawing the stream from an exhaust port at the other end of the arc chamber.
Patent GB-213639-A (GB)
Title: Improvements in or relating to resilient tyres for the wheels of road vehicles
IPC: B60C7/12
Filed: 1923-07-31
Abstract: 213,639. Hackett, G. O. B. July 31, 1923. Non - metallic elastic bodies and cores.-A rubber or other resilient core or filling for tyes, which may be externally formed to fit any desired standard cover, has a slot 4 communicating with a centrally disposed air-space 2, as shown in section, Fig. 3, and is formed with fiared transverse openings 5 extending towards the central space 2 but separated therefrom by a tubular wall 2<1>. The openings are in aligned, oppositely disposed, pairs, the axes being obliquely disposed, preferably alternately inclined opposite ways, as indicated in full and broken lines, so that round each side of the filling the openings are alternately near to and remote from the tread. A strengthening rib 6 may be provided extending into the space 2, and grooves or recesses of any desired configuration may be formed on the outer surface of the core between the openings 5.