baber/WOPTO huggingface dataset:
Patent GB-820358-A (GB)
Title: Dithio phosphoric acid esters and process for their production
IPC: C10M137/10
Filed: 1958-03-10
Abstract: The invention comprises the compounds having the structure <FORM:0820358/IV (a)/1> where R is alkyl and X and Y are N- or C <, and a process for their manufacture.  Preferred types of compound have the structures <FORM:0820358/IV (a)/2> where R1, R2, R3 and R4 are the same or different and are hydrogen, carboxy, carbalkoxy, alkyl, halogen, cyano, hydroxy, aldehyde, nitro, halogenoalkyl, cyanoalkyl, hydroxyalkyl, aldehydoalkyl, nitroalkyl, aryl, alkoxy, acyl, acyloxy and/or R1 and R2 and/or R3 and R4 together form a ketonic oxygen atom; <FORM:0820358/IV (a)/3> where Q is an atom or group completing a ring or multiple ring system (which may contain a group -SP(S)(OR)2) such as -CO.O.CO-, -CO.CH=CH.CO-, <FORM:0820358/IV (a)/4> -CH=CH.CH2-, <FORM:0820358/IV (a)/5> (where A is hydrogen, or a halogen), and <FORM:0820358/IV (a)/6> (where R1, R2, R3 and R4 are as defined above); and the structures <FORM:0820358/IV (a)/7> and <FORM:0820358/IV (a)/8> where R5, R6 are as defined above for R1-R4. The compounds of the invention may be prepared by reacting an O,O-dialkyl phosphorodithioate with an appropriate unsaturated bicyclo-[1,2,3]-heptone type compound of structure <FORM:0820358/IV (a)/9> e.g. at room temperature.  The intermediates may be prepared by the Diels-Alder reaction.
Patent GB-558259-A (GB)
Title: Improvements in, or relating to, apparatus for regulating the temperature of the cooling water of internal combustion engines and other fluid streams
IPC: G05D23/13
Filed: 1942-06-04
Abstract: 558,259. Valves. WALKER, CROSWELLER & CO., Ltd., and GAMBLES, C. C. June 4, 1942, No. 7587. [Class 135] A temperature regulator for liquids flowing in a circuit, has an inlet 5, Figs. 1 and 2, an outlet 6 to a cooling device, and an outlet 7, the relative volumes passing through the outlets being determined by the position of a shutter 28 actuated by bimetallic coils 31, 32. The shutter has arms 26, 27 carrying counterweights 29 and working on bushes 24, 25, the former being mounted on a sleeve 15 socketing on a spindle 10, and the latter on the spindle. The coils are connected at 40, and their inner ends are secured to the sleeve and a bush 36. The sleeve 15 is adjustably carried by the casing cover and has an indicating pointer 22. Earthing connections may be made to a boss 43, stops 35 limit the shutter movement, and the inner face of the shutter is curved to form a guide surface 30.
Patent GB-751393-A (GB)
Title: Improvements in or relating to safety valves
Inventor: HAGIHARA NOBORU
IPC: F16K17/08
Filed: 1954-03-17
Abstract: 751,393. Fluid-actuated valves. OHTA, T. March 17, 1954, No. 7768/54. Class 135. A safety valve comprises a cup-shaped closure member b sliding in a guide cylinder c and co-operating with a seat r. After the valve has cracked open, steam escaping to the exhaust port 12 enters an annular grooves in the seat and the space a between the member b and cylinder c and gives additional lift to the closure member. Steam also seeps through the clearance between the closure member and the guide cylinder and passes into a chamber i at the back of the closure member, and it exhausts from chamber i past an adjustable throttle k. On its way into chamber i, the seepage steam acts on a loose sleeve o and raises it quickly so that it contacts an outturned flange p on the upper end of the closure member and provides a further lifting impulse to the member b. Projections y depending from the cover of chamber i limit the lift of member b. The stem of the valve passes through the cover of chamber i and there carries the valve loading spring 3.
Patent GB-650613-A (GB)
Title: Improvements in magnetrons employing cavity resonators
IPC: H01J25/50
Filed: 1947-03-21
Abstract: 650,613. Magnetrons. WESTERN ELECTRIC CO., Inc. March 21, 1947, No. 7806. Convention date, March 30, 1946. [Class 39 (i)] [Also in Group XL (b)] In a multi-resonator magnetron, the anode block is provided with one or more wave reflective flanges which are located at one or both ends of the block in linear arrangements or are mounted on the block in circular arrangements and are in direct conductive contact with the anode block, so as to set up a desired standing wave pattern in the device in operation. In one form, Fig. 2, the anode block 12 with slots 28 is terminated at both ends by wave reflective flanges 30, 31, and is attached to the conductive casing 13. The flat indirectlyheated cathode 11 is activated only on the side facing the anode, and the ends of the heater terminate in conductive discs 18, 19 to which are connected leads 20, 21 which are brought out through the envelope at seals 23, 24. The cathode is surrounded by a shield 25 having tabs 26 overlapping the ends of the anode 12; lead 20 is insulatingly attached to shield 25 by insulator 27 and lead 21 is conductively attached to shield 25. The shield and cathode structure serves to confine the electromagnetic field to the side of the cathode facing the anode. An output coupling loop 32 is magnetically coupled to the field in one of the slots 28. A magnetic field is applied perpendicular to the plane of the paper. The anode and cathode surfaces facing one another may be curved instead of flat; the anode may be terminated at mid-segment or mid-slot and the terminations need not be the same at the two ends. In a modification, Figs. 3, 4 (not shown), the envelope is of circular form and the anode face in contact therewith is correspondingly curved. The cathode leads and output coupling device are mutually spaced circumferentially by 120 degrees. In another form, Fig. 5, the resonators 61 are circular, the anode is terminated at mid-segment at one end and midslot at the other and straps 64 having tabs 67 are soldered to alternate and intermediate anode segments or inserted in grooves in the segments. Both the straps 64 are connected to both endplates 65, 66 and the device oscillates as a halfwave Lecher wire system loaded with the resonators with voltage nodes at each end and a voltage maxima in the middle; the voltages on the two straps are 180 degrees out of phase. In cylindrical anode structures, Figs. 7, 8 (not shown) one or two wave reflective flanges are mounted radially on the anode block. Specification 592,929 is referred to. The Specification as open to inspection under Sect. 91 refers to " intermediate " terminations for the anode block of Figs. 1, 2, i.e. intermediate between mid-slot and mid-segment, and states that in the form of Fig. 7 a wavereflecting flange may be mounted parallel to one of the resonator slots instead of radially. This subject-matter does not appear in the Specification as accepted.
Patent GB-986097-A (GB)
Title: Improvements in and relating to drawing office furniture
Inventor: MOSS JOSEPH WILLIAM
IPC: A47B27/02
Filed: 1960-03-04
Abstract: 986,097. Stands; furniture combinations. E. W. MASON & SONS Ltd. June 2, 1961 [March 4, 1960], No. 7852/60. Heading A4H. A drawing board is mounted on a cantilever arm 7 which is strapped on to a pedestal 6 encased by side and top panels 8, 9. The drawing board unit may be arranged in juxtaposition with a desk 1 with pedestal supports 3 and the tops 9, 2 of the stand and desk coplanar.
Patent GB-496993-A (GB)
Title: Improvements in printing machines
Filed: 1937-03-17
Abstract: 496,993. Typewriters &c. ADDRESSOGRAPH - MULTIGRAPH CORPORATION. March 17, 1937, No. 7876. Convention date, Aug. 12, 1936. [Class 100 (iv)] Record-controlled driving-mechanism ; relay type-bar actions ; hammer-impression arrangements ; line-spacing mechanism.-Record-card sensing-means are connected to selectiveprinting mechanisms by means including sets of storage-devices, and switching-apparatus is provided for connecting at will any set of storage-devices to any printing-mechanism. The storage-devices may be embodied in record-card controlled apparatus comprising as described in Specification 496,994, (1) three sets of type-bars for printing successively the first, second, and third parts or lines of an address, and (2) control-circuits including three three-row groups of register-relays or storage-devices for controlling the setting of the type-bars, each group being associated with a transfer-relay for selectively closing the circuits of the card-reading brushes, and three shift-relays for connecting each row to the associated set of type-bars. The apparatus is now provided also with three sets L, M, N, Fig. 4, of type-bars for simultaneously printing the whole address in a straight line. The type-bars are differentially set, in the manner described in the above-mentioned Specification, by means of aggregate-motion devices 121 .. 125 operated by setting-magnets such as 126d. Each group of register-relays is provided with an additional shift-relay which closes contacts in circuit with individual registerrelays and individual setting-magnets in the associated set of type-bars. When the first record-card is read, register-relays in the first group are set and during first cycle, the additional shift-relay of the group is energized under control of a cam, the type-bars L, M, N, are set, hammers 116d, e, f are operated, and the three parts of the address are printed in a straight-line on a sheet SS. Subsequent lines are printed under control of other record-cards in the above-described manner. The sheet SS is supported by an endless conveyer 150 passing over sprockets 152 on a shaft 153 provided with a ratchet-wheel co-operating with a pawl 155 operated by a magnet 157 which is periodically energized to line-space the sheet. To permit of variation of the order in which the parts of the address are printed, the leads 217 of the setting-magnets are provided with jacks 225 and plugs 226.
Patent GB-564870-A (GB)
Title: Improvements in or relating to vapour burners
IPC: F23D11/44
Filed: 1943-05-19
Abstract: 564,870. Vapour burners. BATES, S. W. May 19, 1943, No. 7970. [Class 75 (i)] In a vapour burner in which the jet hole is kept clean by a retractable needle B, the needle portion entering the parallel portion of the jet hole is connected by a curved portion G with a portion of larger diameter having a shoulder E which abuts against an inclined surface H on the nipple, a clearance space being left between the curved portion G and inclined surface H. The shoulder E may be formed on a slightly tapered portion F of the needle. Specification 500,418 is referred to.
Patent GB-555248-A (GB)
Title: Improvements relating to the coiling of metal bands and the like
IPC: B21F17/00
Filed: 1942-06-11
Abstract: 555,248. Coiling metal bands. FEENY, L. B. June 11, 1942, No. 7988. [Class 83 (iv)] A mandrel on which metal bands and the like are coiled, particularly for use in preforming to substantially the required diameter a hosepipe clip of the type comprising an adjustable band c encircling the pipe, the ends of the band being engaged respectively by a buckle d and by a split or slotted pin e rotatable in the buckle, consists of a tube f split longitudinally and provided with a relatively movable wedge or like for opening one end of the split to expand that end of the tube to required diameter, the wedge being withdrawn from the split after the coil has been formed on the tube so as to allow removal of the coil. A circular or oval split tube f carries a bolt g and nut i with spring washer h for adjusting the width of the split, the bolt forming a pivot for a plate k between distance pieces j. The plate which is fixed at one end in a vice n is formed near one end of the tube. with a wedge l which is normally pushed by a spring p through the split so as to expand that end of the tube on which the band is coiled. After coiling has been completed the tube is moved on the pivot g to the position shown in Fig. 4 by a handle o to which one end of the spring p is secured, the wedge l being withdrawn from the split and the other end of the tube being expanded by a second wedge l<SP>1</SP> so that the end near the wedge l contracts and the finished band can be removed or automatically ejected by means connected with the handle. A screw stop o<SP>2</SP> in the tube and cross pins m on the plate k limit the rocking movements of the tube f. The surface f2 of the tube may be chromium-plated or coated with lead-tin alloy to reduce friction and prevent rusting. If desired a single wedge may be employed contraction of the end of the tube being effected by, resiliency of the material. For small clips the tube f is pivoted on a plate r with two wedges l and an inclined upper edge r<SP>1</SP> and a straight edge r<SP>2</SP> to limit the rocking movements of the tube. Mandrels of various sizes may be made and removable split sleeves may be applied to the mandrels for producing intermediate sizes.
Patent GB-126787-A (GB)
Title: Improvements in and relating to Air Cooled Engines.
Inventor: ANGELL LA VERE HOBERT
IPC: F02F1/06
Filed: 1918-05-14
Abstract: 126,787. Adgell, La V. H. May 14, 1918. Cylinders, cooling.-Fig. 2 shows in sectional plan two ribbed cylinders 2 with casings 4 having vertical slits 7 for admitting air which escapes through diametrically opposite ports 9 in a pipe 8 which communicates with the suction pipe 10 of a fan.
Patent GB-967636-A (GB)
Title: Rotary fluid engines and pumps
IPC: F01C3/06
Filed: 1961-03-06
Abstract: 967,636. Rotary fluid pumps and engines. P. MONGITORE. March 6, 1961 [March 11, 1960; July 14, 1960; Nov. 28, 1960; Feb. 16, 1961], No. 8112/61. Heading F1F. A rotary fluid pump or engine of the type having a hollow rotational body rotating about an axis and a disc rotating about axis inclined to the body axis, comprises a plurality of part-spherical concentric surfaces 4, 5a, Fig. 4, on a conical surface 6 and a ring-shaped disc 7 radially slotted to provide sectors supported by arms 8 secured to a shaft 85 which through gearing 93 is connected to a shaft 87. The shafts 85, 87 instead of being connected by gearing may be connected by a universal joint. The number of part-spherical surfaces need not - be limited to two and the conical surface may be stepped back (Fig. 7, not shown), to reduce the width of the machine.
Patent GB-609845-A (GB)
Title: Improvements in or relating to circuits for electric discharge tubes
IPC: H03G1/00
Filed: 1946-03-15
Abstract: 609,845. Electron beam valves. PHILIPS LAMPS, Ltd. March 15, 1946, No. 8121. Convention date; July 19, 1941. [Class 39 (i)] [Also in Group XL (c)] In an amplifying circuit comprising a discharge tube having control and screen grids, deflecting plates and an anode, the signal voltage is applied to the control grid, and a second control by a lowfrequency or gain control voltage, is effected by utilizing both the control grid and deflecting plate characteristics. The Figure shows a discharge tube having a cathode 2, control grid 3, screen grid 4, anode 5 and deflection plates 6 and 7, the latter being connected to the screen grid 4. A plate 8, preferably connected to the anode, is provided to improve the electron distribution, and a low potential body 9 is provided to reduce secondary emission phenomina between the anode and positive deflection plate. The incoming signal and a slowly varying direct voltage, such as a gain control voltage, are applied to the control grid 3. The screen grid circuit includes a resistor 12 and a highfrequency byepass condenser 17, so that an amplified gain control voltage, but not signal voltage, is applied to deflector plate 7. Deflector plate 7 acts also as a collector electrode, so that the output from anode 5 is effectively controlled by the deflecting plate action in response to the low-frequency control voltage. The frequency of the signal input should be at least five times that of the low-frequency control voltage.
Patent GB-641720-A (GB)
Title: Improvements in and relating to vacuum tight seals
IPC: H01J37/02
Filed: 1947-03-25
Abstract: 641,720. Stuffing-box substitutes. BRITISH THOMSON-HOUSTON CO., Ltd. March 25, 1947, No. 8132. Convention date, March 27,1946. [Class 122(v)] In a seal for a rotatable shaft 7 passing through a wall 11 having different pressures on its opposite sides, a collar 21 on the shaft fits into a recess 20 formed in the wall, a resilient gasket 15 engages the shaft and overlies the collar 21 and an adjacent part of the wall, and the gasket is arranged to make an air-tight fit with the said part of the wall. An oil impregnated disc 16 surrounds and lubricates the shaft immediately above the gasket and a retaining ring 17 clamps the outer edge of the gasket to the wall and also maintains the assembly in position.
Patent GB-319195-A (GB)
Title: Improvements in or relating to the taking of colour photographs for use in cinematography
IPC: G02B27/14
Filed: 1928-03-17
Abstract: 319,195. Chapman, W. March 17, 1928. Grant of Patent opposed. C o l o u r kinematography. - Colour - record images are produced in pairs by means of one lens and light dividing means, each pair of images being formed on one film, being contained in the area normally occupied by a monochrome image, and being arranged so that the film carries two rows of spaced images, the spaces in each row being alongside the images in the other row. Figs. 1 and 2 show a lens 8 and a system comprising a rhomboidal prism 1 with a semi-silvered or other transmitting- reflecting surface 5, a second rhomboidal prism 3 having its plane of deflection at right angles to that of the prism 1, a connecting-prism 2, and a parallel plane glass plate 4. The prisms 1, 3 may be identical, but, as shown, the prism 3 produces a smaller deflection of the axis of the beam than does the prism 1, and the images produced are equal in dimensions, are in contact at the corners, and occupy diagonally opposite quarters of the normal image area of a standard film. The optical lengths of the light paths may be made equal, so that the images 9, 10 lie in the same plane, by adjusting the thickness of the plate 4, or by varying the refractive indices of the prism 3 and plate 4, the emergent faces being in the same or different planes. A modification is described in which the angles of the prisms 1, 3 are respectively increased and decreased to equalise the lengths of the light paths. To increase the light transmission from the lens 8 through the prism 3, the prisms 2, 3 are extended so that the prism 2 has an entrance face covering the aperture of the back lens element; a parallel plate 7 may be cemented over the entrance faces of the prisms 1, 2, The colour filters may be placed between the units 1, 4 and 2, 3 respectively, or they may be between the prisms and the film; in the latter position their thickness, or the thickness of their cover glasses, may be varied to effect a fine adjustment of the image planes. Reflections and stray images may be prevented by the provision of grey portions 5<b> on the surfaces, and by making the units of greater width than is otherwise necessary and chamfering off the surplus polished areas as at C. The prisms &c. may be assembled on a plate 1, Fig. 9, carrying a lens L and rotatable by a tangent screw 2, the units U<1> U<2> being secured to the plate 1. The units U<3> U<4> may be carried by a mount 3 so as to be rotatable with respect to the other units about the lens axis. The parts may be assembled with colour filters F<1> F<2> between them, the meeting surfaces being coated with soft Canada balsam, and may be adjusted to the position which they are to occupy permanently, while the Canada. balsam is still soft. The blades of the shutter may have stepped edges, as shown in Fig. 7, so that the pictures P<1> P<2> may be covered and exposed approximately simultaneously.
Patent GB-253634-A (GB)
Title: Improvements relating to thermally operated electric switches
IPC: H01H37/36
Filed: 1925-03-27
Abstract: 253,634. Siemens Bros. & Co., Ltd., Petithory, E. A., and Garrod, E. R. March 27, 1925. Switches, quick-break; thermal switches. - In thermal cut-outs which operate when portions of apparatus such as bearings become, overheated, heat is absorbed from the part to be protected by a sleeve 1 of aluminium and is conducted to the thermal device by a copper rod 2. The thermal device comprises a capsule 6, which in expanding forces upwards a rod 10 having nuts 15 engaging links 13, causing the links 13 to move to break a toggle 13, 18 and allowing a spring 21 to move a switch arm 24 into the open position. The switch is reset by depressing a knob 22 which is connected to the rod 10 through a spring 28, which serves to prevent closure of the switch if the capsule is still expanded. The switch is adjusted by rotating a screwed cap 8 and so moving the switch parts towards or away from the capsule. One of the links 13 is extended to project through the casing and indicates whether the switch is " on " or " off."
Patent GB-138757-A (GB)
Title: Improvements in auto-scooters
IPC: B62M9/00
Filed: 1919-04-02
Abstract: 138,757. Bray, G. A. April 2, 1919. Foot-cycles or scooters. The frame of a motorscooter consists of a pair of metal side members each comprising an horizontal part 1 and an upwardly-extending part 4, the parts 4 converging to support the socket 5 of the steering-pillar. The parts 1 are parallel and are bent inwardly to form parallel extensions 3. The parts 1 support a platform 12.
Patent GB-1280254-A (GB)
Title: Method for manufacturing a bearing member of an axial thrust bearing
IPC: B22F5/10
Filed: 1970-02-20
Abstract: 1280254 Making bearings; dies SVENSKA KULLAGERFABRIKEN AB 20 Feb 1970 [24 Feb 1969] 8315/70 Heading B3A A method of making a bearing member of an axial thrust bearing, Fig. 1, the member comprising a flat disc 1 having spiral grooves 2, comprises pressing the grooves into a blank 9 made of sintered metal powder of carbon content less than 0À1% by means of a die 4 made by forming grooves, corresponding to the raised portions of the bearing member, by etching or machining the metal of the die and then grinding the die surface flat. The grooves produced in the bearing member have smooth walls and bottoms. The top surfaces of the raised portions are rough. The member may be used with the roughness retained or it may be removed by grinding. The sintered metal member may be nitrided or annealed, e.g. at 1000‹ C., after having been coated with nickel or chromium.
Patent GB-647195-A (GB)
Title: Improvements in or relating to electrical amplifier circuit-arrangements
IPC: H01G4/12
Filed: 1947-03-27
Abstract: 647,195. Non - contact - making relays. PHILIPS LAMPS, Ltd. March 27, 1947, No. 8340. Convention date, March 30, 1946. [Class 40 (iv)] [Also in Group XL (c)] An amplifier using a condenser whose properties depend on the voltage and/or current applied to the condenser, of the type described in Specification 647,055, is arranged so that the amplified signal is back-coupled to the modulator part of the circuit. The signal to be amplified is applied at 1, Fig. 1, and is either direct current or a low-frequency signal with a direct voltage imposed. The secondary 5 of a transformer adds an alternating voltage to the circuit, and because of the properties of the condenser dielectric 3 an amplified signal is produced in the resistance 8. A diode 12 is added to give negative feedback with a near-linear amplification and increased stability, while if the electrodes of the diode are reversed, the feed-back is positive, giving increased amplification. In the pushpull arrangement of Fig. 2, the losses of the special condenser are compensated for by adjustment of ordinary condensers 9, 10 and the feed-back is effected through a transformer 15.