baber/WOPTO huggingface dataset:
Patent GB-790410-A (GB)
Title: Improvements in and relating to contact condensers
Filed: 1955-10-28
Abstract: <PICT:0790410/III/1> In apparatus for condensing steam by direct contact with water, part of the water withdrawn from the condenser is pumped back to the water-inlet of the condenser via a heat-exchanger in which the water is cooled by air, and the flow of the recirculated water is controlled by a valve regulated by a pressure-responsive element actuated by the water-pressure at the highest point of the cooling system so that the pressure in the system is maintained above atmospheric pressure and consequently no air enters the system.  In Fig. 1, steam from turbine 1 enters condenser 2 where it is condensed by a spray of water.  The water withdrawn from the condenser is in part pumped via pipe 12 to the boiler (not shown); the other part being pumped via pipe 5 to air-cooled heat-exchanger 6.  The cooled water than returns to the condenser through pipe 9, the flow being controlled by valve 10 which is connected to the highest point 7 of the cooling system.  In Fig. 2, not shown, the automatic valve is provided at the input to a water-turbine which may use the potential energy of the water for generating electric current.  Turbine 11 may also be used to assist the normal motor drive to the recirculation pump.  An apparatus is also described where the condenser is provided with four spray nozzles each connected to an automatic valve.  The individual valves are opened or closed stepwise one after the other.
Patent GB-1008365-A (GB)
Title: Externally adjustable matrix-shaped translator
IPC: G06V30/194
Filed: 1964-08-04
Abstract: 1,008,365. Character recognition. STANDARD TELEPHONES & CABLES Ltd. Aug. 4, 1964 [July 26, 1963], No. 30884/64. Addition to 939,134. Heading G4R. In the electrical learning and translation circuit of the parent Specification the cross-points 11-44 of a matrix are joined by secondary cells A which are charged by a source Ub during the learning phase with the appropriate one of switches S3-S6 in its c position and discharge during the translating phase through the a position of switches S3-S6 connected to a maximum current detector E with outputs b1-b4. The secondary cells may have an internal reistance or be in series with resistors R which may be shunted by diodes conducting during the charging or learning phase.
Patent GB-337176-A (GB)
Title: Improvements in or relating to endless transmission belts and the manufacture thereof
IPC: F16G9/00
Filed: 1929-10-12
Abstract: 337,176. Dunlop Rubber Co., Ltd., and Sadler, S. Oct. 12, 1929. Belts. - A rubbered fabric belt is made by winding on a former 2 one or more strips 1, each in more than one convolution, preferably helically with overlapping edges, and then side-rolling the band thus formed on the former to circular form. The strip is of vegetable, animal, or artificial matter rubbered by coating or impregnating with material or synthetic rubber and, if desired, other ingredients, before or after being made up to belt form, and is of straightcut or cord fabric with its warp threads running longitudinally of the strip and with or without weft. The ends 3 are preferably chamfered and similarly placed circumferentially of the drum. The belt may be covered by rubbered canvas or other fabric 4 cut on the bias and laid on the former in a single layer with its ends overlappig, being taken up with the band 1 during the siderolling operation. A core of rubbered cord or other fabric may be provided. In order to tension the belt during shaping and vulcanization on the mould 7, it is rolled over a tapered guide 5, or alternatively the former 2 may be tapered.
Patent GB-136562-A (GB)
Title: Machine for Clamping Together Plates to be Riveted.
Inventor: HALLETT FRED NORTON
IPC: B25B31/00
Filed: 1919-12-11
Abstract: 136,562. Hallett, F. N. Dec. 11, 1918, [Convention date]. Riveting.- A machine for drawing together metal plates prior to riveting comprises a pointed spindle 9 having a slot 11 to receive a cotter pin 12 near the point 10, and a head 15 at the other end, and adapted to pass through holes 18 in a pair of crossheads 16, 17 connected by toggle-arms 21, 22. The point of the spindle is passed through rivetholes 13 in the plates, the cotter pin 12 is inserted in the slot 11, and then the knees 24, 24<1> of the toggles are drawn together by a fluid-operated piston 6 having a U-shaped piston-rod 29, so that the cross-heads 17, 16 press on the work and the spindle head 15 respectively, to draw the plates 14 together.
Patent GB-749875-A (GB)
Title: Improvements relating to gas purifiers
IPC: C10K1/26
Filed: 1953-11-11
Abstract: 749,875. Purifying gas. DEMPSTER Ltd., R. & J., SAVAGE, W. A., and POLLARD, R. Oct. 29, 1954 [Nov. 11, 1953], No. 31222/53. Class 55(2). [Also in Group XXVIII] Spent material is removed from oxide purifiers by one or more cutting tools which incorporate a duct through which broken-up fragments are withdrawn by suction. A wedgeshaped cutting blade 1 is disposed at the end of a vertical tube 2 to which is attached a flexible suction pipe 3, the tube inlet 4 being arranged immediately above the blade. A rotary disc at the end of a hollow shaft 6 driven from a shaft 9 carries curved cutting blades 5 which deflect material towards the central inlet. In another form of rotary cutter, a radial bladed disc forms the end closure of a container from which air is drawn, the material being sucked into the container for evacuation with the air through a ring of holes at the inner end of the cutting blades.
Patent GB-1033797-A (GB)
Title: Improvements in or relating to cut laminated strip ferromagnetic core assemblies
IPC: H01F17/04
Filed: 1964-08-04
Abstract: 1,033,797. Transformers. VACUUMSCHMELZE A.G. Aug. 4, 1964 [Aug. 3, 1963], No. 31265/64. Heading H1J. In order to reduce the thermal stresses set up between the strip laminations of a core and the bonding resin used, and to enable the core to be cut without the laminations of the cut ends splaying apart, the laminations are placed in a metal trough 1 and the laminations bonded to each other and to the trough by a bonding resin 15, Fig. 2 (not shown), at at least two zones 3. The cuts are made through the zones 3 and the base of the trough free of resin is lined with an elastic synthetic material 2 which does not bond the laminations and supports the unbonded strips. The ageing of the resin is carried out after the resin has set and the cuts made. The trough is made of materials which have a coefficient of expansion approximately equal to that of the laminations, e.g. copper, aluminium, alloys, plastics. After insertion of the coils the core may be held together by tension rings or by applying coldhardening adhesives to the cut ends. The laminations may be protected from corrosion by lacquer coatings. The construction is particularly suitable for current and voltage transformers, also audio and pulse applications.
Patent GB-991160-A (GB)
Title: Improvements in posts for locating machine tools
Inventor: MELLOR REGINALD JAMES
IPC: B23Q1/54
Filed: 1960-09-12
Abstract: 991,160. Machine tool details. MELBRO MACHINE TOOLS Ltd. Sept. 11, 1961 [Sept. 12, 1960], No. 31269/60. Headings B3B and B3C. A portable post assembly for locating a machine tool comprises convex and concave bearing surfaces respectively on the post 10 and a magnetic base 15 whereby the post may be adjusted angularly. The post carries a drilling or tapping machine or the quill thereof and rack- and-pinion means for moving the machine parallel to, or at a slight angle to, the axis of the post. The base 15 includes induction windings and is formed with a circular recess in which a plate 19 may be rotatably adjusted. The plate 19 carries an eccentric pin 23 engaging a split bearing-plate 24 formed with the dove-tailed concave groove in which a flange 11 of the post 10 is received. Thus, the post 10 can be adjusted angularly in a vertical plane by movement of the flange 11, laterally by movement of the eccentric pin 23 and angularly in a horizontal plane by rotation of the plate 19. In a modification, the plate 19 is omitted and the peg 23 is mounted on the base 15. Ball castors may protrude from the body 15 to allow movement of the base, the castors being retracted when the magnetic coils are energized. Specification 874,095 is referred to.
Patent GB-434091-A (GB)
Title: Electric illuminating installation for stop signals on electric railways
IPC: B61L5/20
Filed: 1933-11-10
Abstract: 434,091. Supplying low-voltage consuming devices. BEECK, A. E., D³sseldorf, Germany. Nov. 10, 1933, No. 31370. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 12, 1934]. Drawings to Specification. [Class 38 (iv)] Where the traffic current is used to feed the normal lamps of a wayside tramway or like halt, extra lamps in series used as a resistance can illuminate advertisements.
Patent GB-499488-A (GB)
Title: Fuel feeding devices for internal combustion engines
IPC: F02M59/12
Filed: 1938-01-19
Abstract: 499,488. Gear pumps; valves. EGERSDORFER, F. Jan. 19, 1938, No. 31380. Divided application. [Class 110 (ii)] [Also in Group XXVII] Fuel supply means for an internal-combustion engine comprises a gear pump, and radial ducts 36 and slots 37 in the pump driving shaft 6 which co-operate with further ducts 38 leading to the engine. The gears 4, 5 are fixed on the shaft 6, and mounted loosely on a bush 49, respectively. The pump delivery includes a ball non-return valve. A second ball valve is arranged in a byepass between delivery and suction conduits. Variation of the pump delivery is secured by moving the shaft 7 axially. This carries bushes 10, 11 and the gear 5 with it. A lever 31 may be connected with a governor or an accelerator.
Patent GB-665087-A (GB)
Title: Improvements in and relating to laminated magnetic cores, particularly for transformers
IPC: H01F27/245
Filed: 1949-12-07
Abstract: 665,087. Transformers and inductances. BRITISH-THOMSON-HOUSTON CO., Ltd. Dec. 7, 1949 [Dec. 17, 1948], No. 31424/49. Class 38 (ii). A magnetic core is built up of a plurality of lamination layers 1, 3 of. thin, straight flat pieces of magnetic material having a most favourable magnetic direction and identical mitred or bevelled ends at each end, to provide a window, the overlapping butt joints being obtained by disposing the pieces in succeeding layers longitudinally to offset the butt joint, such that the offsetting is clockwise relative to one adjacent layer and counterclockwise relative to the other adjacent layer. The projecting outer corners 5, 6 may be removed. A plurality of spaced slits 8 extending longitudinally from the ends of each strip may be provided to obtain a more uniform flux distribution at the corners.
Patent GB-306861-A (GB)
Title: Improvements relating to vehicle lamps
IPC: F21S19/00
Filed: 1927-11-23
Abstract: 306,861. Stirrup, T., and Stirrup, W. Nov. 23, 1927. Convertible gas, oil, and electric vehicle lamps; lantern doors; reservoirs, attaching to lanterns; mounting electric lamps in lanterns.-In a vehicle lamp which can be converted at will into an electric lamp, an acetylene lamp or an oil lamp, the body portion A and hinged front B are cast in aluminium and provided with conical seatings a', b<6> to form a tight joint. The body portion of the lamp is formed with a well a to receive the oil container c an extension c<1> of which passes through an internally threaded boss a<1> projecting from the bottom of the well and is clamped by a nut c<2>. A slot is formed in the side of the lamp for the passage of the wick regulator c<4>. To substitute an acetylene burner the oil vessel is removed and an externally threaded acetylene fitting, with a nipple for the connection of a flexible tube, is screwed into the boss a<1>. Ventilation holes a<3> are provided in the top and bottom of the lamp and a reflector F is adjustably secured by a nut f in a central hole in the back a<4>. The electric light reflector e, which can be fitted while the oil burner c is in position, is adapted to be clamped between the conical seating on the body portion A and the front B which carries the glass b and is hinged at the top and fastened at the bottom by a wing nut b<5> on a pivoted bolt b<3>. Lugs at the sides of the lamp engage the carrying bracket. A red light may be shown through a hole in the back a<4>. When used as a tail light the lamp may have an aperture for directing a beam of light laterally to indicate to the driver that the lamp is alight.
Patent GB-1190559-A (GB)
Title: Combined Fluid Feed Control and Pressure Relief Valve Assembly.
Inventor: HART BERNARD EATON
IPC: F04B43/06
Filed: 1967-07-07
Abstract: 1,190,559. Relief valves. FLEXIAN HYDRAULICS Ltd. 7 July, 1967, No. 31439/67. Heading F2V. A relief valve for a diaphragm pump has a passage between a port 14 connected to the pumping chamber and an exhaust passage 17 normally closed by ring 28 on valve member 27 seated on shoulder 31. A piston extension 24 of the valve member 27 having a sealing ring 30 moves in bore 12 and is subject to the pump outlet pressure. Integral with the valve member 27 is a valve member 32 which cooperates with a seat 9 to control the flow from a pipe 7 to a port 5 connected to the pump inlet. Spring 34 normally biases the two valve members so that valve member 27 is seated while the valve 32 is open. Rise in pump outlet pressure above a predetermined valve opens the valve 27 to relief the pump chamber to atmosphere and simultaneously closes the valve 32 to close the pump inlet. The pump can then continue to operate without damage by taking in and exhausting air through ports 14 and 17. The valve body is provided with two of each port for simultaneous operation on two pumps.
Patent GB-283710-A (GB)
Title: Perforated razor strop
IPC: B24D15/08
Filed: 1926-12-13
Abstract: 283,710. Tyrer, J. Dec. 13, 1926. Strops. - A razor-strop has round or oblong perforations a with slits c between alternate pairs of perforations lengthwise of the strop.
Patent GB-449135-A (GB)
Title: Improvements in a supporting device for semi-trailers
IPC: B60S9/20
Filed: 1935-11-15
Abstract: 449,135. Reciprocating pumps. DOORNE, H. J. VAN, Deurne, Holland. Nov. 15, 1935, No. 31658. [Class 102 (i)] [See also Groups XXXII and XXX] One or more supporting devices for the front of a semi-trailer adapted to be lowered hydraulically against the action of a spring is constructed as a hydraulic cylinder movable within a casing or jacket, the casing and the piston being secured to the trailer. The Figure shows a pump for the supporting device and comprises a cylinder 17, piston 18 and rod 23 which is operated by hand from a crank 20. The rod 23 is coupled to the piston by means of a stud 24 engaging in a cross slot in the piston 18. When the pressure liquid has caused the wheels to contact the ground, the rod 23 is rotated through 90‹ by a handle 26 so that the piston is no longer operated, the stud 24 sliding in a longitudinal slot. The small end 28 of the rod then may serve as a plunger to force pressure liquid to the supporting device to jack the front end of the semi-trailer upwards. When the tractor and trailer are coupled, push rods automatically lift the pump suction and discharge valves.
Patent GB-1033118-A (GB)
Title: Improvements in or relating to brake systems
IPC: F16D65/28
Filed: 1964-08-05
Abstract: 1,033,118. Fluid-pressure control of brakes. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Aug. 5, 1964 [Aug. 14, 1963], No. 31841/64. Heading F2F. A fluid-pressure safety brake system for a trailer including a brake actuator 20, a relay emergency valve 6 and a fluid pressure reservoir 8 chargeable through an emergency line 4 when the latter is connected with a tractor and operative to supply the actuator 20 when the line 4 is disconnected, to effect emergency braking, comprises spring-applied brake locking means locking the actuator in brake applied position when the reservoir pressure falls to a particular value, fluid pressure operated release means for maintaining the locking means in released position when the reservoir pressure is above that value and control valve means 70 movable to a first position connecting the reservoir and the release means to prevent the brake locking action when the emergency line 4 is disconnected, a subsequent drop in reservoir pressure to the said value, due perhaps to leakage, enabling the locking means to lock the actuator in brake applied position. The reservoir 8, normally charged through line 4 and relay valve 6 when the tractor is connected and supplying compressed air to the actuators 20, 22 by lines 16, 18 when the tractor connection is broken, is connected through line 80 to valve 70, small reservoir 84 and lines 86, 88 to the ports 64 of the locking release devices, the latter being operative while the pressure in reservoir 8 is above the said value, the brakes being locked on when the pressure falls. When the pressure is high the brakes may be released and the trailer may be moved by depressing the plunger 72 of valve 70 to connect line 80 to exhaust through lines 90, 4, the valve then blocking port 76 to maintain the pressure in lines 86, 88 to maintain the locking means in the released position. The relay valve 6 may be that described in Specification 823,657 while the actuator, locking and locking release means may be those described in Specification 955,062.
Patent GB-1280226-A (GB)
Title: Optical system for the reading-out of stored information
IPC: H04B10/00
Filed: 1969-06-24
Abstract: 1280226 Holography; optical data reader THOMSON-CSF 24 June 1969 [25 June 1968] 31902/69 Heading G4A [Also in Divisions B6 and G2] An optical system for reading out N items of information comprises a support 2 carrying the N-items of information in the form of transparencies in a first plane and an equivalent number N of holographic lenses 3 positioned to receive light from the support and to selectively project into a second plane an enlarged image of any one of the N items of information. The holograms are formed by the interference of N coherent light point sources A in the first plane and a further coherent point source A<SP>2</SP> in the image plane. Either real or virtual images can be retrieved. In another embodiment (Fig. 7) one of 36 transparencies (in linear rows and columns) each containing 36 bits of information is selectively illuminated by one of 36 diodes 20. An enlarged image of the bits of information is projected by a corresponding hologram lens 2 on to a corresponding photoelectric transducer. By suitable setting of switches 23, 24 for the illuminating diodes and 30, 31 for the transducers any one of the bits of information can be retrieved. The transparencies can be of letters or numbers which are thrown on to an image converter or recorded on photographic emulsion for photo-composing.
Patent GB-230926-A (GB)
Title: Improvements in hammer piston drills
IPC: E21B6/00
Filed: 1923-12-20
Abstract: 230,926. Potter, H. S. Dec. 20, 1923. Percussive tools.-The tool chuck 36 is rotated by lugs 39 on a member 40 carrying a worm wheel 3 which is driven through a worm 4 by a compressed air motor 10. On the opposite end of the worm shaft is mounted a pump 13 by means of which water is delivered to a head 45 and thence through the hollow drill to the bore hole. A screw plug (not shown) is fitted in the head 45 for the purpose of controlling the water supply, and a control valve for the air supply is fitted in the motor inlet pipe. The casings 49, 14 of the motor and pump, as well as the head 45, are secured to the drill casing by pivoted bolts and lugs, as shown. The invention is equally applicable to a hand hammer, in which case a single cock is arranged to control the air for the motor 10 and the hammer cylinder, whilst the water passes from the pump to the head 45 by way of a passage in the cylinder wall.
Patent GB-1070499-A (GB)
Title: A method of and device for producing bevel gear teeth on rolling machines
Inventor: IVANOV KONSTANTIN PETROVICH
IPC: B21H5/04
Filed: 1964-08-06
Abstract: 1,070,499. Rolling gears. NAUCHNOISSLEDOVATELSKY INSTITUTE TECHNOLOGII AVTOMOBILJNOI PROMYSHLENNOSTI. Aug. 6, 1964, No. 31988/64. Heading B3M. A bevel gear is produced by rolling a blank 1 in a machine comprising meshing gears 3 and 6, the gear 3 rigidly supporting the blank for rotation, and the gear 6 housing a toothed rolling tool 2 which is axially slidable but rotationally fast with respect to the gear. After moving the gear 6 into meshing engagement with the gear 3, by means of a pistonrod 11 secured to a casing for the gear 6, the tool 2 is forced axially into engagement with the blank by means of a further piston-rod 14. During rolling, the tool and blank mesh with one another under the constraint of the gears 3 and 6.
Patent GB-352354-A (GB)
Title: Improvements in and relating to cam-operated valve gear
IPC: F01L1/12
Filed: 1930-10-24
Abstract: 352,354. Valve gear. BIRKIGT, M.. Rue de Capitaine Guynemer, Bois-Colombes. Seine, France. Oct. 24, 1930, No. 31997. Convention date, Sept. 25. [Class 7 (vi).] In cam-actuated gear having elastic means arranged to act on one of the members interposed between the cam and the valve, in opposition to, but with less force than, the valve-closing spring, the elastic means is arranged to act on this member only at the beginning of the opening movement, and at the end of the closing movement, a stop being provided to limit the extension of the elastic means. The Figure shows a spring f arranged to exert a slight upward force on the tappet g when the valve is closed. The upper end of the spring f is fixed by a washer m and split ring n to the tappet, so that as the tappet is moved upwards to open the valve, the compression is taken off the spring, which then rises bodily with the tappet, a shoulder k on which contacts with a washer l underneath the spring. The spring may be arranged in connection with the push rod c or rocker b.
Patent GB-1442595-A (GB)
Title: Underwater telephone
IPC: H04B11/00
Filed: 1972-07-07
Abstract: 1442595 Underwater telephony GRASEBY INSTRUMENTS Ltd 6 July 1973 [7 July 1972] 32044/72 Heading G4F An underwater telephone comprises a watertight casing 1, a sonic transducer 2 mounted thereon or connected thereto, a water-tight connector 4 for connection to a head-set transducer assembly 6 for speaking and hearing, a battery within the casing and transistorized batteryoperated transmitter and receiver circuits in the casing for transmitting and receiving a modulated carrier wave via the sonic transducer. In the embodiment a switch 7 has "off", "receive" and "transmit" positions and is so arranged that it is normally biased to the "receive" position and operation to the "off" position is difficult when wearing gloves, Figs. 2 and 3 (none shown). Transducer 2 is a leadzirconate-titanate ceramic piezo-electric bimorph and the transmission band is on a linear portion of its characteristic, Fig. 4 (not shown). The speech transmitted is single-band, suppressed carrier, Fig. 5 (not shown), and the transmitter and receiver, Fig. 6 (not shown) inorporate integrated circuits.