baber/WOPTO huggingface dataset:
Patent GB-1003915-A (GB)
Title: Combustion apparatus and methods
IPC: F23D17/00
Filed: 1962-06-21
Abstract: 1,003,915. Burners. AIR REDUCTION CO. Inc. June 21, 1962 [June 21, 1961], No. 23919/ 62. Heading F4T. A burner discharges parallel streams of fuel gas and combustion supporting fluid, and a stream of an intermediate fluid between the fuel gas and the combustion supporting fluid to delay the mixing of the fuel gas and the combustion supporting fluid. The intermediate fluid may be air, nitrogen, argon, liquid oxygen, liquid nitrogen, water or steam. The combustion supporting fluid may be oxygen, fluorine, chlorine, nitrous oxide, ozone or hydrogen peroxide. The velocity of the intermediate fluid is regulated to control the location of the burner flame and hence the zone of maximum temperature in an open hearth furnace. The burner comprises seven tubes arranged concentrically or eccentrically but one within another to form, starting at the outermost, an annular passage for cooling water, an annular passage for the combustion supporting fluid, an annular passage for the intermediate fluid, a second annular passage for cooling water, an annular passage for the fuel gas and an annular passage for air or steam for atomizing liquid fuel discharged from a nozzle on the end of the innermost tube. The ends of the two cooling water passages are closed and an external pipe connects the two passages. Partitions extend along the length of the water passages. Valves are provided to control the supplies of fuel gas, combustion supporting fluid, intermediate fluid and water. Circular passages instead of annular ones for the combustion reactants may be used.
Patent GB-635851-A (GB)
Title: Improvements in regenerative heat exchangers
IPC: F28D19/04
Filed: 1947-08-29
Abstract: 635,851. Regenerators. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and HAHNEMANN, H. W. Aug. 29, 1947, No. 23934. [Class 64(i)] A regenerative heat-exchanger comprises two axially separated, coaxial, disclike matrix members 1, 2 which rotate in opposite directions, each disc having a plurality of axially directed passages 1a, 2a extending therethrough, the space between the discs being divided into two chambers 6, 7 by a fluid tight partition 5 provided with at least one axially directed passage 5a, the arrangement being such that as the discs rotate, a passage, e.g., 1a in one disc enters temporarily into communication with a passage, e.g., 2a in the other disc as the said passages move past the partition 5. The passage or passages 5a may each be divided longitudinally into two non-communicating parts (see Fig. 2, not shown). The discs rotate against the ends of cylindrical ducts 8, 9 which are each divided by fluid tight partitions 10, 11 into semi-circular ducts 8a, 8b, 9a, 9b. Hot low pressure fluid (e.g., the exhaust gas of a gas turbine engine) flows along the ducts 8a, 9a, through those passages 1a, 2a in the discs, which are in alignment with said ducts and is exhausted (e.g., to atmosphere) through the duct 6a. Cold fluid at a relatively higher pressure (e.g., air delivered from the compressor of a gas turbine engine) is led through the duct 7a and passes through those passages 1a, 2a in the discs that are in communication therewith and is led away to the consumption point (e.g., the combustion chamber of a gas turbine engine). The disc-like matrix members may be made of ceramic material.
Patent GB-839471-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F34/08
Filed: 1956-08-03
Abstract: 839,471. Washing-machines. GENERAL ELECTRIC CO. Aug. 3, 1956 [Aug. 4, 1955], No. 24013/56. Class 138 (2). [Also in Groups XIII and XXXVII] A washing-machine including heating means 35, 36 and a clothes tumbling drum driven through belting 24, 25, is provided with switchoperating means comprising a movable member or members resiliently biased to apply tension to the belting and effective upon belt failure to render the heating means inoperative by operation of a control switch 55. The invention is applied to a washing, rinsing, spin drying and final drying machine similar to that in Specification 792,758. The belts 24 and 25 connect a twospeed transmission 28 to an electric drive motor 23 and the clothes tumbling drum respectively. The transmission 28 and control switch 55 are both mounted on a frame 56 which is pivotally and slidably supported on a rod 60 extending through slots 61 in a U-shaped support member 62. A tension spring 63 biases the frame 56 to the right in Figs. 3 and 6 to maintain tension in the belt 24, and a compression spring 65 biases the left-hand end of the frame 56 downwardly to maintain tension in the belt 25. A switchoperating button 77 extends through an opening in a longitudinally slidable actuator 72 which is biased to the left in Fig. 6 by a tension spring 74 but is normally held by the engagement of a depending tab 75 on the actuator 72 with a fixed bracket arm 76. An L-shaped trigger 69 pivoted at 70 on the frame 56 is adapted to move the actuator 72 upwardly to release the tab 75 from engagement with the arm 76 to allow the spring 74 to open the switch 55 in the event of failure of either of the belts 24, 25.
Patent GB-1203207-A (GB)
Title: Improvements in image converter having photosensitive material having a response time dependent on intensity of incident light
Inventor: WILLES ROBERT LEONARD
IPC: H04N5/30
Filed: 1969-05-12
Abstract: 1,203,207. Photoconductive elements. OPTONETICS Inc. 12 May, 1969, No. 24028/69. Heading H1K. [Also in Divisions G1 and H4] A video signal corresponding to a light image 2 is produced by projecting the image upon a surface of a layer 3 of photosensitive material, the photo-electric response time of which is dependent upon the intensity of light incident thereon, scanning a spot of light across a surface of the layer (e.g. flying spot C.R.T. 16), and sensing the variation of the photo-electric response time of the material. As shown the layer 3 is disposed between two transparent electrodes connected to an A.C. voltage supply 10 (or a D.C. voltage supply), and the resulting voltage across resistor 11 due to photo-conduction current in the layer 3 is differentiated 12, 13 to derive an output signal corresponding to the rate of variation of the photo-conduction current with respect to time. The arrangement utilizes the fact that the response time of the photo-conduction current is dependent on the intensity of the incident light which comprises the projected image and the scanning spot, and since the scanning spot intensity is constant, the response time of the generated photocurrent is proportional to the intensity of the image regions scanned. Only one electrode need be transparent, the projected image and scanning signal being incident on the same surface of layer 3. The scanning source may comprise an electroluminescent matrix array instead of C.R.T. The output signal may be displayed or utilized to provide target detection or pattern recognition. The photosensitive material may comprise cadmium sulphide doped with an activator coactivator combination of copper and chlorine, cadmium selenide with copper and chlorine activation, activated cadmium telluride, mercuric indium sulphide, cadmium indium sulphide or zinc indium sulphide. The photovoltaic or photoemissive effect may be utilized.
Patent GB-1093913-A (GB)
Title: Improvements in or relating to harmonic generators
Inventor: HALES RALPH WILLIAM
IPC: H03B19/14
Filed: 1965-06-04
Abstract: 1,093,913. Transistor harmonic generators. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. June 4, 1965, No. 24033/65. Heading H3T. In a harmonic generator, having transistors TX1 and TX2 driven in push-pull and feeding in push-push a tuned circuit C2, L3, a biasing arrangement C3, R1, R3 and C4, R2, R4 is provided for each transistor so as to stabilize the output from L4 against amplitude and frequency variations with changes in signal amplitude to L1. Resistor R5 ensures that the transistors bottom in operation to give a squarewave output from which even harmonics of the input signal may be selected by the tuned circuit C2, L3; as shown, the circuit operates as a frequency doubler. The bias arrangement for each transistor maintains the time interval between the start of a half-cycle of the input signal and the instant when the transistor conducts constant, so as to stabilize the output signal. Transistors of N.P.N. type may be used instead of those shown and the transistors may be arranged in common-base or commoncollector modes.
Patent GB-169162-A (GB)
Title: Improvements in furniture for typewriter use
IPC: A47B21/02
Filed: 1921-09-09
Abstract: 169,162. Grandjean, M. Sept. 17, 1920, [Convention date]. Tables combined with cabinets.--A typewriter, supported on a board 2 carried by parallel-motion links a, b so that it can be swung in or out of a recess below a table-top &c. 1 is provided with a weight compensating spring 13 and with devices which lock the board in either of the two extreme positions. The links a, b are pivoted to brackets 7 in the depending lugs 7<a> of which is pivotally mounted an annular stop-piece 9 through which a plunger 10, pivoted at 11 to the arm a, slides, against the pressure of the spring 13. As the board 2 is lowered a nut 12 on the plunger 10 compresses the spring 13. When the board reaches the position shown in dotted lines the spring has no turning moment, the pivots 3, 11, 14 being in a straight line. The board is retained in the lower position by means of a spring catch 20, the hook 19 of which engages a projection 21, and is retained in the upper position by means of a gravity catch 15, 16 pivoted to extensions c of the arms a and engaging a projection 18. The catch 15, 16 may be released by means of a system of levers and links mounted beneath the board and operated by a button.
Patent GB-626624-A (GB)
Title: Improvements in or relating to measuring devices such as barometers
IPC: G01L9/00
Filed: 1945-09-18
Abstract: 626,624. Indicating apparatus; barometers. LIQUIDOMETER CORPORATION. Sept. 18, 1945, No. 24063. Convention date, March 7. [Classes 106 (ii) and 106 (iv)] A device for measuring a change of a variable comprises a control member arranged to be displaced in response to a change of said variable, a permanent magnet rotatably mounted on said control member and arranged so that a line connecting the poles of said magnet is transverse of the axis of rotation thereof, a magnetic system for producing two stationary opposed magnetic fields in substantially parallel planes equally spaced axially on opposite sides of a normal position of the magnet and adjacent and perpendicular to the axis of rotation of the magnet, said magnet being displaceable bodily along its axis of rotation relative to said two opposed magnetic fields by a displacement of said control member, and an indicating element fixed relative to said magnet to indicate a bodily displacement thereof by a rotational deflection corresponding to the angular position of said magnet. A chamber of a pocket barometer is formed between a diaphragm 14 and housing 13 and may be evacuated or filled with a gas under pressure. A dial 26, the ends 59 of which may be sprung together during assembly, is mounted on a opal support 22 which rests on a diaphragm guide 12 and carries a setting gear 20 which may be a forced fit thereon, or formed integrally therewith. The setting gear 20 may be rotated by a knob 50. Three fingers of an adjusting spring 24 are engaged in slots in the dial support 22 and the centre of the spring is threaded to engage a bushing 17 mounted upon the diaphragm. A permanent magnet 31 and a pointer 32 are mounted on a shaft rotatably supported by the bushing 17 and an adjustable bracket 33 carried thereby. Associated with the magnet 31 are two stationary permanent magnets or electromagnets 40, 401 mounted in opposition on a housing 41 and located by ears 42. The vertical position of these magnets may be adjusted initially by rotating a screw 46 which engages a plate 44, a spring washer 45 pressing the magnets against this plate. The apparatus is housed in a casing 61 having a transparent cover 62. In operation, movement of the diaphragm causes a vertical movement of the magnet 31 which rotates due to the varying field of the stationary magnets, the amount of rotation being limited by stops 38, 39. The dial and spring 24 are then rotated by the knob 50 until the diaphragm returns to its initial position as indicated, it is stated, by the return of the pointer to its zero position shown by an index 58. The pressure may then be read from the dial 26, the indication remaining until a further observation is made.
Patent GB-1475642-A (GB)
Title: Glass compositions
IPC: C03C3/095
Filed: 1975-06-05
Abstract: 1475642 Optical glass CARL-ZEISSSTIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 5 June 1975 [24 July 1974] 24213/75 Heading ClM An optical glass consists of, in weight percent: The glass has the following properties: n d = 1À650Œ0À001; V d =55À0Œ0À5; thermal expansion coefficient = 74 Œ 2 Î 10<SP>-7</SP>/deg. C.; transformation temperature = 683 Œ 5‹ C. ; softening point = 810 Œ 10‹ C.; and specific gravity = 3À78Œ0À05.
Patent GB-749585-A (GB)
Title: Improvements in or relating to clothed rollers
IPC: B05C17/02
Filed: 1952-09-27
Abstract: <PICT:0749585/III/1> <PICT:0749585/III/2> <PICT:0749585/III/3> A paint roller 4 has a sheet of cloth 1, e.g. textile pile fabric, extending therearound and held in circumferential tenof the cloth 1 or by fixed attachment of sion by interconnection of meeting edges the edges to the roller 4, the edges being received within the circumferential contour of the roller 4.  The cloth 1 may be laid on a sheet of metal, side flanges 5 of which are bent over to grip the cloth 1 along two sides.  The metal is then formed into a roll with the flanges 5 interiorly disposed, a clip 6 running longitudinally of the roller securing the flanges. Dished end caps support a spindle and single or double yoke handle, and the cloth may overhang the ends of the roller and be gripped between the caps and the end of the roller.  Lugs punched in the roller may secure a balancing strip opposite the clip 6, and the cloth 1 and roller 4 may be perforated. In another embodiment a longitudinal groove in a metal roller receives the meeting edges of the cloth 1 which may be stitched together.  The walls of the groove are pressed together and bent towards the wall of the roller to grip the cloth.  In a further embodiment the ends 23 of the cloth 24 are passed through a gap 22 in the roller, which may be metal or plastic, a clip 25 securing the assembly, Fig. 11.  Alternatively, a wire spring clip may engage longitudinal recesses in the outer walls 20, 21 of the gap.  In another embodiment, the roller, which may be of rigid material, is corrugated longitudinally, the stitched edges of the cloth lying in one of the corrugations.  Again, Fig. 13, the stitched edges 32 of the cloth 33 enter a gap 35 in a metal or plastic roller 36, a rod 37 being inserted between the edges of the cloth to tension it.
Patent GB-260735-A (GB)
Title: Improvements in covers for seats and passengers on the outside decks of omnibuses, tramcars and like vehicles
IPC: B60N2/24
Filed: 1925-09-29
Abstract: 260,735. Richmond, T. H. Sept. 29, 1925. Windscreens.-A cover for a vehicle seat or the occupant thereof consists of a sheet g of waterproof material secured at S to the back of a front seat and detachably securable to studs e on a U-shaped frame a. To cover the rear seat, the sheet g is removed from the studs e and secured to the studs j. By raising the frame a together with the sheet and securing it in raised position by turnbuttons i, a wind-screen is formed. A similar device may be provided on the side of the vehicle to form an additional wind-screen.
Patent GB-304160-A (GB)
Title: Internal rotary tube cleaner
IPC: F03B13/04
Filed: 1927-09-15
Abstract: 304,160. Somerville, D. Sept. 15, 1927. Cleaning internally, rotary appliances for.-A tube cleaner for steam generators, economizers &c. is provided with bevelled cutters D with toothed edges, rotatable in a head A secured to a turbine wheel B operated by steam issuing through openings G. The exhaust from the turbine is arranged to be deflected by the tool head on to those parts of the cutters which are travelling slowest in order to retard the apparatus as little as possible. A three pronged fork is arranged in front of the tool-head to guide it.
Patent GB-517094-A (GB)
Title: Improvements in high-pressure metal-vapour electric discharge lamps
IPC: H01J61/86
Filed: 1938-08-18
Abstract: 517,094. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Elektrische Gluhlampen). Aug. 18, 1938, No. 24324. (Class 39 (i)] In a high-pressure, metalvapour, projection, discharge lamp having an approximately spherical envelope the electrodes 5, 6 are located with the discharge column below the envelope centre, so that the image 8 formed by the envelope of the discharge 7 is prevented from showing outside the envelope, it falling on the electrode. The filling of rare gas and mercurywhich evaporates completely -works at 40 atmospheres.
Patent GB-518235-A (GB)
Title: Improvements relating to housings for ball and roller bearings
IPC: F16C33/78
Filed: 1938-08-18
Abstract: 518,235. Stuffing-box substitutes. CROFTON & CO. (ENGINEERS), Ltd., C., and MANN, R. W. Aug. 18, 1938, No. 24365. [Class 122 (v)]- [Also in Group XXXIV]. A disc 32, Fig. 1, extending nearly to the circular periphery of the grease compartment 28 is provided to prevent dirt from reaching the ball-bearings 16 of a roller shaft past a felt ring 26. In a modification shown in Fig. 2, the dirt-excluding ring 48 forms one side of a housing for a felt ring 56 and the other side is formed by a ring 58 fitting tightly the roller end 40 which forms the housing, of the ballbearings 50. The ring 48 is formed as a flange to a sleeve 46 fitted on the roller shaft 44. The flange 48-may alternatively be on the inner side and the ring 58 on the outside of the felt ring 56. Specification 440,927, [Group XXXIV] is referred to.
Patent GB-274312-A (GB)
Title: Improvements in bridge locks
IPC: E01D15/06
Filed: 1926-10-04
Abstract: 274,312. Marks, E. C. R., (Scherzer Rolling Lift Bridge Co.). Oct. 4, 1926. Bridges. - Bascule bridges of the type having movable means on the moving leaf coacting with fixed means on an adjacent abutment to cause movement of the leaf, have also interengaging means on said movable leaf and abutment to form a bridge lock. The sectors 14 of the leaf are caused to roll on the upper side of trusses 15 to raise the leaf by means of gearing operated by a motor 23 supported on a platform 32 on the movable leaf, and coacting with fixed racks 21 carried by diagonal and upright rods 35, 36, 37 from the abutments 17, 18. Disposed at each side of the fixed frames carrying the racks are tapered sockets 42 into which are adapted to be forced tapered locking shoes 39 by means of screwed shafts 45, there being a resilient connection between the screwed shafts and the sliding shoes, so that fracture is avoided in the event of the shoes not exactly aligning with the sockets. The screwed shafts are actuated by a motor 65 controlled by a reversing switch 69 and an overload circuit breaker 68 which automatically cuts out the motor after the shoes have been pressed home.
Patent GB-174392-A (GB)
Title: Improvements in apparatus for cooling liquids and other substances in bottles and like receptacles
IPC: F25D5/02
Filed: 1920-08-24
Abstract: 174,392. Codelli, Anton, Baron von, and K÷ppen, Freiherr Wladimar von. Aug. 24, 1920. Cooling-cartridges opened to produce cold; bottles and other receptacles provided with cooling-means. -A portable apparatus for cooling liquids or other substances in bottles or other receptacles comprises a liquefied-gas container 1, Fig. 1, or 21, Fig. 4, inserted in the bottle or receptacle, and a device for opening the sealing- cap of the container, formed with a chamber 4, Fig. 1, or 34, Fig. 4, into which may pass liquefied gas and vapour given off on opening the container. The vapour may escape through an opening 6, Fig. 1, leading to a ventilator by a flexible pipe, or may be absorbed in a liquid contained in a chamber 36, Fig. 4, while unevaporated liquid flows back again to the container to be vaporized. In the first form, a cap 3 sealed beneath a flange 10 around the mouth of the container is punctured by a double-coned spur 5, and the vapour escapes around the stern of the spur and through holes in the base of the chamber 4. A flanged sleeve 13 fitted loosely on the container 1 is attached to one part 14 of a wire lever device serving to force the sleeve over a neck 8 on the chamber 4 and to cause the spur to puncture the cap. A rubber packing-ring 9 in a groove in the neck forms a gas-tight connection. In the second form, the liquefied-gas container 21, screwed into the neck of a. bottle 25, is formed with an enlargement 22 to increase its capacity, and the seal is in the form of a screw-cap 43 having struckout lugs 29 for engagement by internal ribs 32 in a neck 30 on the opening-device. Complete withdrawal of the screw-cap is prevented by a stop, and the extent of rotation of the opening device in unscrewing is limited by the engagement of a hook 33 on the neck 30 with a stop surface 42 on the container. The surface 42 is gapped to enable the hook 33 to be passed below it to retain the opening device in position on the container against the upward thrust due to vapour pressure. The vapour escapes slowly through an orifice 35 and bent tube 37 into the liquid absorbent.
Patent GB-1009518-A (GB)
Title: Method of manufacturing relatively thin structures by electrolytic etching
IPC: C25F3/08
Filed: 1963-06-21
Abstract: <PICT:1009518/C6-C7/1> A thin structure, e.g. about 0.1 mm. thick, of W, Mo, or Ta is produced by preparing two models corresponding to the desired configuraton of the structure from a metal which can be formed electrolytically, placing a foil of the metal to form the structure sandwichwise between the aligned models, and electrolytically etching the foil in a bath which does not also attack the models so as to remove metal from the foil where it is not protected by the models and then removing the models to leave the shaped foil.  The models may be formed of copper or nickel by electrodeposition on a photoengraved matrix.  A grid may be made as shown by sandwiching a tungsten foil 4 between perforated nickel models 1, 2 and etching in caustic soda using a nickel cathode with a temperature which may be up to 40  DEG C. and an anode current density of up to 30 A./dm.2.  A flat tungsten filament in the form of a capital omega or a plate with a castellated margin may be similarly produced.
Patent GB-1106077-A (GB)
Title: Gas turbine jet power plant
Inventor: BAKER ALAN LEONARD
IPC: F02K1/06
Filed: 1964-06-15
Abstract: 1,106,077. Gas turbine by-pass jet engines. BRISTOL SIDDELEY ENGINES Ltd. June 14, 1965 [June 15, 1964], No.24754/64. Heading F1J. A gas turbine jet engine of the by-pass type comprises a by-pass air passage which leads to a discharge nozzle, the outer wall of the discharge nozzle being formed in part by an inflatable device which may be expanded against a rigid outer shroud radially inward so as to vary the nozzle area. The engine shown comprises a ducted fan 7 driven by a turbine 8 the ducted fan discharging into a duct 4 which leads to a discharge nozzle 13 formed between the engine casing 5 and a resilient wall 14. The wall 14 is in the form of an annular inflatable bag surrounded at its outer periphery by a shroud 15 so that when the bag is inflated either by gas or liquid under pressure the inner periphery thereof distends to the position indicated by chaindotted line 16 thus reducing the discharge area of the nozzle. The area of the nozzle may be reduced automatically in dependence on air pressure or fan speed.