baber/WOPTO huggingface dataset:
Patent GB-1427813-A (GB)
Title: Electronic switch
IPC: H03K17/60
Filed: 1973-05-23
Abstract: 1427813 Switching circuits; amplitude modulation PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 May 1973 [26 May 1972] 24617/73 Headings H3T H3R An electronic switch comprises a transistor 2, a control circuit 6 including an auxiliary switch 8 for generating blocking and release voltages for the transistor, a switching voltage circuit 17 including a resistor 20 shunted by a capacitor 19 for applying a switch voltage along lead 18 to respectively release or block a series connection of a capacitor 21 and a biased switching diode 22 shunting the transistor when the transistor itself is switched off or on. The switch transistor 2 serves to supply high frequency input signals at 11 to a load 1 under the control of the auxiliary switch 8 which allows the whole or only a part of supply voltage 14 to be applied along lead 7. For providing isolation to a load 1 in the switched off state of transistor 2, a ladder network 29 comprising shunt by-pass networks 21-22, 30-33 are provided so that any signals coupled via the parasitic capacitances of transistor 2 are shunted to earth. Diodes 22, 32, 33 are suitably biased from source 14 so that when transistor 2 is on the by-pass networks are turned off by a switching voltage on lead 18 formed by emitter current flow through resistor 20.
Patent GB-224518-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B19/00
Filed: 1924-10-16
Abstract: 224,518. Skandia-Verken Aktiebolag. Nov. 5, 1923, [Convention date]. Cylinders receiving liquid fuel.-A shoulder 2 is provided within the combustion chamber in a vertical plane approximately parallel to the axis of a rotatable fuel injector 1, which has an obliquely directed spraying, orifice, so that the fuel jet may be projected against the shoulder in order to atomize the fuel and deflect it into the middle of the combustion chamber. The fuel injector 1 may be rotated about its axis to direct the fuel upwardly on to an igniting pin (not shown) at starting, laterally on to the shoulder 2 at medium loads, or downwardly on to the cylinder through an eccentric passage 3 of oval cross-section at full load. By thus rotating the fuel injector, the temperature of the combustion chamber may be controlled. Specification 12881/13 is referred to.
Patent GB-774167-A (GB)
Title: Improvements in or relating to air flow control for refrigerators
Inventor: SWANSON SVEN V
IPC: A47F3/04
Filed: 1955-08-26
Abstract: 774,167. Refrigerators. TYLER REFRIGERATION CORPORATION. Aug. 26, 1955 No. 24628/55. Class 29 In an open-topped display case of the kind in which a stream of air is blown by a fan 7 over a refrigerating element R and then across the top of the storage container 2, the stream across the open top is stratified by baffles 15 in such a manner that the lower strata move faster than upper to reduce turbulence. The upper strata may be insufficiently fast to span the open top. A restriction 12 in the air outlet 11 causes a backing up of pressure in the plenum chamber containing the refrigerating element so that an even flow of air across the container is produced along the length of the case.
Patent GB-578328-A (GB)
Title: Improvements in or relating to the construction of internal combustion engines
IPC: F02B69/00
Filed: 1944-12-08
Abstract: 578,328. Crank-chambers. DAVEY, PAXMAN, & CO., Ltd., and PAXMAN, E. P. Dec. 8, 1944, No. 24655. [Class 7 (ii)] A crankcase has three plane uninterrupted joint faces 2, 3, 4, the central face 2, which is horizontal, being arranged to support a cam box assembly 13, and the other two faces 3, 4, which are inclined, being arranged to support a row of cylinders 5 and a platform 6 which carries the engine auxiliaries. The platform 6 which is preferably hollow is fixed by countersunk studs 8 and the engine auxiliaries, e.g., a circulating water pump, an auxiliary generator and a supercharger, are bolted thereto. By this means the cylinder block, head units and cam box units, described in Specification 560,287 as forming a V-engine, may be used for an engine having a single bank of cylinders.
Patent GB-502104-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J31/12
Filed: 1937-09-11
Abstract: 502,104. Cathode - ray tubes. KLEMPERER, O. Sept. 11, 1937, No. 24777. [Class 39 (i)] In cathode-ray tubes having a luminescent screen which tends to become negatively charged when bombarded by high velocity electrons of the order of 10-100 kilovolts, the building up of a negative charge on the screen is prevented by the provision of a source of low velocity electrons, of the order of 200-300 volts which is caused to impact the screen. An arrangement is shown in the drawing in which the screen 6 is bombarded by the high velocity electrons from a system including a cathode 2, modulating electrode 3 and first and second anodes 4, 5, the latter of which is at a voltage of about 20 kilovolts. A source of low velocity electrons comprises an anode 9 preferably at the potential of the anode 5 and a cathode 8 at about 300 volts negative thereto. The low velocity electrons may cover the whole area of the fluorescent screen and may be continuous or intermittent in action.
Patent GB-534279-A (GB)
Title: Improvements in or relating to tubulous vapour generators
IPC: F22B37/14
Filed: 1939-08-31
Abstract: 534,279. Water-tube steam boilers. BABCOCK & WILCOX, Ltd. Aug. 31, 1939, No. 24987. Convention date Jan. 28. Addition to 497,718. [Class 123 (ii) ] In a boiler having convection heat section 11 spaced laterally from the furnace chamber 10 and an inverted U-shaped substantially unobstructed passage 12, 13 between the sections as described in the parent Specification, the tubes lining the front and back walls 15, 20 of the furnace chamber are independently connected to an upper drum 30 and extend continuously along the furnace walls from a lower distributing drum 32. The lower end of the second limb 13 of the U-shaped passage opens into an ash receptacle 42. The tubes lining the rear walls 22 of the U-shape passage extend upwards from a distributer 37 along an inclined wall 36 above the ash receptacle, across the bottom of the convection heat section, along the wall and then across the top of the passage to the drum. The distributers 32, 37 are connected by tubes 49, 48 to external downcomers 46, which also supply water by tubes 47 to the lower headers 39 of the side walls. Molten slag is discharged from the furnace chamber into the receptacle 42 through openings 28. The side and rear walls of the pass 13 may be lined with re-heater tubes instead of water tubes.
Patent GB-580472-A (GB)
Title: Improvements in or relating to lamps for lighting
IPC: F21L19/00
Filed: 1944-12-13
Abstract: 580,472. Incandescent vapour lamps. TILLEY BROS., Ltd., and DYSON, J. E. Dec. 13, 1944, No. 24991. [Classes 75 (i) and 75 (iv)] The vaporizing tube B and mantle D of a vapour lamp are housed between upper and lower annular parabolic reflectors G, J in a chamber 'formed by a cylindrical glass H' mounted on a gallery H on vertical supports E secured to the fuel reservoir A. A cowl F carrying a cap F<2> rests by bosses F' on the reflector G and is clamped in position by pivoted hooks L to which a bail L' is pivoted. Air entering between the cowl F and reflector G passes through radial passages K to a mixing chamber C to mix with the vapour discharged from the tube B before combustion at the mantle D. Additional air passes to the flame through the central opening in the reflector J. The combustion products escape through a tubular passage G<2> formed integrally with the reflector G. A clip carrying asbestos packing impregnated with alcohol may be secured to the tube B above a control valve B<1> to heat the tube B at starting. The rims of the reflectors engaging the glass H<1> may be silvered to act as additional reflectors. The glass H<1> may be formed in two segments having the same or different surface finishes.
Patent GB-518430-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R19/22
Filed: 1938-08-25
Abstract: 518,430. Current meters; thermo-electric batteries. BRITISH SANGAMO CO., Ltd., (Weston Electrical Instrument Corporation). Aug. 25, 1938, No. 25042. [Classes 37 and 53] A thermo-electric converter adapted for use as a thermal ammeter has the thermo-couple and heater elements mounted on terminals in good heat-transfer relationship with a metal casing of high electrical and thermal conductivity that completely surrounds the said elements. The thermo-couple 15 and heater 8 are supported on posts 14, 7 connected with the terminals 10, 9 and 5, and are enclosed in a casing 1, 2 of high electrical and thermal conductivity, preferably copper. The terminals 10, 9 have plugs 11 projecting into the ammeter casing 21 and through a cup-shaped shield 20 which is also of copper and telescopes over the meter casing. The terminals are insulated by bushes 17 and thin mica washers 18 thus providing a good heat transfer relationship with the casing. One of the heater terminals 5 is preferably earthed by a strap 19, Fig. 5, and in this construction all of the terminals are located at the rear of the casing 1, for direct or indirect connection with the ammeter. Arrangements employing a number of pairs of thermo-couples connected in bridge fashion may be employed, one such arrangement, Fig. 8, having eight couples and including additional supports 24 and mounting posts 25. Specifications 109,046 and 160,763, [both in Class 37], are referred to.
Patent GB-532488-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D25/32
Filed: 1939-09-01
Abstract: 532,488. Steam turbines. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 1, 1939, No. 25074. Convention date, Sept. 2, 1938. [Class 110 (iii)] In a turbine arrangement as described in Specification 488,055, the inter-stage conduit 11 is extended to form a compartment 27 and a pervious screen 34 is arranged.in front of the rear wall 30. Condensation water in the steam which is projected across the way to the low-pressure stage is caught behind a flange 33 and some passes through the screen. A low wall 35 near the screen confines the collected liquid.
Patent GB-924071-A (GB)
Title: Improvements in heat treatment or baking ovens
IPC: A21B2/00
Filed: 1959-07-23
Abstract: 924,071. Bakers' ovens. BAKER PERKINS HOLDINGS Ltd., F. R. DIXON, and R. G. CLEMENTS. July 20, 1960 [July 23, 1959], No. 25287/59. Class 28 (1). [Also in Groups XI, XII and XXX] An oven includes a conveyer (Group XXX) upon which articles, e.g. flour confectionery or foundry cores, are moved through the oven beneath pairs of high-frequency electrodes located in sections of a tunnel through which the conveyer passes, which tunnel is spaced from the top and bottom walls of the oven and is formed of high conductivity and non-magnetic metal to screen the remainder of the oven, further heaters, electric or gas, being mounted within the oven but outside the tunnel. Conveyer 14 carries articles 15 through the oven casing 11, 12, 13, Fig. 1, and through the tunnel sections 24 which enclose pairs of slotted or gridlike electrodes 23 supported by aluminium tubes 57, Fig. 6, traversed by pipes 59 for air cooling. The tunnel is formed by a corrugated stainless steel base 28, upon which the conveyer is supported by skids, and aluminium, brass, or bronze sides 35, secured and earthed to the oven walls, and roof sections 24, the base and the roof sections being perforated to allow simultaneous heating of the articles 15 by convection or radiation from gas or electric heaters 22, and to prevent overheating of the edges of the conveyer. The electrodes 23 are fed from an oscillator 61 via a tuner consisting of a pair of parallel members 63 and an adjustable shorting bar 65. A degree of turbulence in the oven atmosphere is maintained by pumping air from the oven casing through duct 47 and introducing it, via duct 49, into outlet pipes 51 distributed along the top of the oven (Fig. 8, not shown). The air flows horizontally along a pipe 53, Fig. 7, within pipe 51, and expands into the latter through side vents 54, and thence downwards into the oven through vents 52.
Patent GB-1114260-A (GB)
Title: A method of establishing an arrangement of valves providing a plurality of fluid pressure levels
IPC: F15B11/02
Filed: 1965-06-15
Abstract: 1,114,260. Valves. REXALL DRUG & CHEMICAL CO. 15 June, 1965 [15 June, 1964], No. 25298/65. Heading F2V. [Also in Division G3] Means for establishing a plurality of pressure levels consists of a flow control valve 61 between conduits 60, 62, spring-closed and opened spooltype regulating-valves 1 and 31, respectively. The pressure P1 downstream of the valve 61 is a reference pressure whilst the upstream pressure P1a is the first pressure level; these pressures are applied across the spool 2 of valve 1. Pressure P1 acts through a restriction 67 to assist the loading spring 3 to keep valve 1 closed until the pressure P1a is high enough to open the valve and connect conduit 60 to a pipe 12 from which lead connections 13, 14, in the former of which is established the second pressure level P2 whilst the pressure in the latter acts on the spool 32 of valve 31 in concert with the loading spring 33 to oppose the reference pressure P1 applied to the other end of the spool 32 via a restriction 68. The outlet conduit 41a from 31 contains a relief valve 41b to establish a third pressure level P3; valve 31 closes when the reference pressure P1 exceeds that in a line 17 leading from connection 14 which contains a check valve 15. The line 17 also constitutes the inlet to valve 31.
Patent GB-1254700-A (GB)
Title: Kerb stones and methods of laying kerbing utilising such kerb stones
Inventor: CHITTY PETER JOHN
IPC: E01C11/22
Filed: 1968-05-27
Abstract: 1,254,700. Kerbstones. P. J. CHITTY. 6 Aug., 1969 [27 May, 1968], No. 25309/68. Heading E1G. In a method of laying, re-laying, or raising the level of kerbing using two-part kerbstones 2-3, the lower portions 2, which have flat upper surfaces, are laid level with the road surface prior to or when constructing the road, while the upper portions are secured thereon, e.g. by grout and dowels 8, only when the road is finished. Spacers may be provided between the portions 2, 3.
Patent GB-219839-A (GB)
Title: Improvements in or relating to inking rollers
IPC: B41N7/00
Filed: 1923-10-11
Abstract: 219,839. Aspinall, D. A. Oct. 11, 1923. Inking-apparatus. - Inking-rollers for printing and like machines are formed by casting the roller composition on a flanged core of hard wood or other sufficiently rigid material. The core 1 is placed in a mould comprising end caps 6, 6<1> and a cylindrical tube 9, the caps being adapted to fit over the end flanges 2, 3 of the core and into the tube 9. Holes 4, 5 are provided in the flange 2 and an opening 7 is formed in the cap 6 so that the composition can be poured into the mould when the core is in a vertical position. Slits 12 in the cap 6 allow the air to escape and provide means whereby the cap can be gripped to facilitate its removal. A flange 8 on the lower cap serves to aid its removal from the. flange 3. The inner edges 11 of the caps are chamfered to give the desired contour to the rollers.
Patent GB-1278657-A (GB)
Title: Heating element and electric furnace equipped with such an element
Inventor: ANTHONY ANNE-MARIE
IPC: H05B3/62
Filed: 1969-05-19
Abstract: 1278657 Supporting furnace charges AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 19 May 1969 [17 May 1968 31 Dec 1968] 25353/69 Heading F4B [Also in Division H5] A resistance heating element 1 (see Divisions H3-H5) has a collar 5 by which it is suspended in a furnace. A pre-heater 22 comprises a resistance wire 30 on an alumina tube 29. The heat insulating container 23 has a liquid-cooled metal envelope 24 with conduits 32a, 32b, 33. A sample holder 25 is used to introduce samples into the furnace cavity via opening 35, and the heated sample is observed via sighting devices 39a, 39b. A screw 90 is unscrewed to put samples of varying diameter in the adjustable jaws 87 of a member 85 and the screw 90 is then screwed up to close the jaws in the manner of a chuck. An arm 42 is then pivoted to bring the holder 25 below opening 35, and a handle 44 is then operated to raise the sample into the furnace cavity. The furnace and sample holder 25 are mounted on a common support 40 on a foot 41. Arm 42 moves along support 40 by a rack system 43.
Patent GB-1042576-A (GB)
Title: Improvements in or relating to transmission control apparatus
IPC: G06F13/12
Filed: 1965-06-16
Abstract: 1,042,576. Data transmission. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 16, 1965 [June 30, 1964], No. 25364/65. Heading H4P. [Also in Division G4] The description is the same as that of Specification 1,042,574. The claims relate to a system for the transfer of data between a data processor and a plurality of outstations, comprising an interface for each output line, the interfaces being scanned sequentially, and recirculating stores, synchronized with the scanning and containing a control word for each line, each control word having a terminal control identifying field for selecting the one of a number of terminal controls which corresponds to the interface associated with the control word.
Patent GB-206641-A (GB)
Title: An improved sight testing apparatus
IPC: A61B3/036
Filed: 1922-09-20
Abstract: 206,641. Shorrock, T. F. A. Sept. 20, 1922. Sight-testing apparatus.-Comprises a series of sight-testing charts which may be shown successively and also rotated from a control device at a distance and a pointer for use in conjunction with the charts also controlled from a distance. The charts n are mounted on spring rollers m and revolved from the control device o by means of a cord m<1>. The rollers m are mounted on a frame j<1>, j<2> rotated about its centre by a cord g and chart pulley e. In conjunction with the charts n is a pointer r which may be rotated independently of but in a similar manner to that of the chart frame. Within the casing d, housing the charts n, is a frame a carrying a pulley e mounted on bearings e<2> and carrying a disc j to which the chart frame is attached. The frame is rotatable against the action of the spring e<3> by means of the cord g. A cord m<1> passing through the axis of the pulley e and disc j is utilized to rotate the rollers m and thus change the chart being viewed. A pulley q, similar to the pulley e, carries the pointer r and is independently operated. In a moditication, the series of charts n and the rollers m are replaced by a disc ritted with a hinged flap covering one half of the disc. Charts occupy one half of the disc and one side of the flap and the flap is operated to cover the chart on the disc by a cord passing down the axis of the apparatus. In addition to the charts n a series of sight tests v may be similarly mounted and operated.
Patent GB-1432177-A (GB)
Title: Pipe cutting machine
IPC: B24B49/00
Filed: 1973-05-29
Abstract: 1432177 Severing MITSUI SHIPBUILDING & ENG CO Ltd 29 May 1973 [30 May 1972] 25424/73 Heading B3D  A pipe cutting machine comprises a wheel 8 arranged to be driven in rotation and capable of cutting a pipe 1, means 13, 15 for feeding the cutting wheel towards the pipe, means 23 for detecting sparks from the cutting position of the wheel, and speed adjustment means for reducing the speed of feed of the wheel from an initial relatively rapid speed in response to a signal from the spark detecting means. The pipe 1 is clamped by a pressure roller 3a against rollers 3. The grinding wheel 8 is driven by a belt 12 from a motor 10 and is supported at one end of an arm 4 movable about a pivot 6 by the rod 15 of a pneumatic cylinder 13 connected to the bed 2 of the machine. The rod 15 and cylinder 13 are connected to the rod 18 and cylinder 17, respectively, of an hydraulic braking arrangement. The ends of the braking cylinder 17 are interconnected by a low-flow resistance valve 20 or a high-flow resistance valve 21 according to the position of a valve 22 connected by an amplifier 24 to the spark detector 23 in the form of a photo transistor directed at the cutting location. The wheel is initially fed towards the pipe at a speed controlled by the valve 20. When the wheel engages the pipe, the photo transistor detects the sparks and produces a signal which is fed to the amplifier to actuate valve 22 so that the valve 21 controls the feed of the wheel at a reduced cutting rate. For withdrawal of the wheel, the valve 22 is again operated so that valve 20 is operative to permit a rapid withdrawal of the wheel.
Patent GB-374717-A (GB)
Title: Improvements relating to the construction or laying of lawntennis courts
IPC: E01C13/08
Filed: 1931-09-11
Abstract: 374,717. Grounds for sporting purposes. SPURRIER, J. M., Marston Hall, Hilton, near Derby. Sept. 11, 1931, No. 25469. [Class 132 (i).] Lawn tennis courts, bowling greens, putting greens, &c., are formed with a foundation a of clinker and soil, over which is laid a layer of screened soil or ashes b, on which is a top dressing of hard court binder c sown with grass and a further sprinkling e of top dressing. The top dressing may be formed by heating raw gravel in a drier and sieving the material to separate the fine portion. Such a material is stated to contain 93 per cent silica, the residue consisting of moisture and organic matter with small quantities of lime, iron and alumina. A material sold under the registered Trade Mark " Firmate " is stated to be suitable for the purpose.
Patent GB-460786-A (GB)
Title: An improvement in or relating to quick-release hose couplings
IPC: F16L37/086
Filed: 1935-09-14
Abstract: 460,786. Pipe couplings. NUSWIFT ENGINEERING CO., Ltd., and HARRIS. G. W. Sept. 14, 1935, No. 25530. [Class 99 (i)] In hose-couplings of the type wherein a number of radially-slidable bolts b carried by a socket member a engage automatically behind a flange on a spigot when inserted in the socket, disconnection being effected by the rotation of caps which surround the bolts and act by means of cams to withdraw them clear of the spigot flange, the projecting ends of two diametrically opposed pins f carried by a collar c fast on the shank b<1> of each bolt b, or the ends of a single pin, cooperate with a cam ring g formed on a rotating cap h. Alternatively, the pins may be on the cap and the cam-surface on the collar ; also, antifriction rollers may be provided on the pins. Specification 359,796 is referred to.
Patent GB-296733-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: H05G1/02
Filed: 1928-09-06
Abstract: 296,733. Demblon, A. Sept. 6, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. R÷ntgen - ray apparatus. - A hightension currentgenerator for X-ray and other uses comprises "interchangeable units" constituted by a transformer and condensers placed in a vessel and sunk in insulating mass, and valves a n d connections placed on the outside of the vessel. The transformer 26, Fig. 1, and condensers are mounted on a frame which is inserted into a metal casing 1 filled with insulating material and provided with insulating bushings 3 - - 7, Fig. 2, on the front face 2. The conductors through three of these bushings are adapted with terminal sockets 8, 9. 12 for valves 10, 11. A spark gap 17 is also provided by conductors through three of the bushings, and three of the extending conductors have movable "connecting bars " 18 - - 21. The units may be assembled in contact with each other, the contact of the casings being utilized for the low tension connection, the high tension circuits being connected by the connecting bars which are adapted for series or parallel circuits,