baber/WOPTO huggingface dataset:
Patent GB-808790-A (GB)
Title: Improvements in or relating to regulated power supply systems
Inventor: ROBINSON THOMAS PHILIP
Filed: 1956-12-14
Abstract: 808,790. Automatic regulation. STANDARD TELEPHONES & CABLES Ltd. Dec. 14, 1956, No. 38290/56. Class 38 (4). In a constant current electrical power supply with a series transductor between supply and load circuits, having auxiliary windings fed from a constant voltage D.C. source and by feed-back from the load terminals, their fluxes are additive. In one embodiment, Fig. 1, A.C. mains 3 provide a D.C. output 4 by means of transformer 2 and rectifier bridge 8. In series with the supply circuit is the load winding of a transductor 1. Auxiliary windings 6, 7 are respectively fed from a source of fixed D.C. bias 5, and by feed-back from across the output terminals, the polarities being such that their resultant fluxes add. Rheostats 10, 11 allow for variation in the level of bias and the degree of feed-back. From the circuit characteristics Fig. 4, it can be seen that for a given bias there is a range of substantially constant current and that the open-circuit voltage is relatively low. In an embodiment providing A.C. output current (Fig. 2, not shown), a rectifier bridge is connected across the output to supply the feed-back winding.
Patent GB-1478298-A (GB)
Title: Printing devices
IPC: B41J2/24
Filed: 1973-08-17
Abstract: 1478298 Selective printing GENERAL ELECTRIC CO Ltd 16 Aug 1974 [17 Aug 1973] 38970/73 Heading B6F A mosaic printer comprises a plurality of parallel strips such 16C actuable by respective electromagnets (19A-G, Figs. 3, 6, not shown) located to one side of the plurality of strips to slide longitudinally with respect to unactuated strips into contact with a displaceable print medium to form a mark thereon. The strips are returnable by a helical spring 31 common to all the strips. Specification No. 1,382,638 is referred to.
Patent GB-1247333-A (GB)
Title: Articles containing oleophilic graphite or oleophilic metal sulphides
Inventor: GROSZEK ALEKSANDER JERZY
IPC: C04B35/52
Filed: 1967-08-24
Abstract: 1,247,333. Oleophilic graphite and oleophilic metal sulphides. BRITISH PETROLEUM CO. Ltd. 13 Aug., 1968 [24 Aug., 1967], No. 38979/67. Heading C1A. [Also in Divisions C3, C5 and F2] A solid shaped body consists wholly or in part of an oleophilic graphite or oleophilic metal sulphide prepared by grinding graphite or a metal sulphide, e.g. MoS 2 ,SnS 2 , in an organic liquid in the substantial absence of air. The body may contain a binder, a metal powder, non-oleophilic carbon powder, or non-oleophilic metal sulphide. The body may be formed by compacting the components of the shaped body. The shaped graphite bodies may be used as sealing-rings and pump glands, or as rotary bearings, e.g. in turbine shafts and thrust plates.
Patent GB-1486304-A (GB)
Title: Automatic drawing system
IPC: G06F3/033
Filed: 1974-09-09
Abstract: 1486304 Selective signalling W L COTTER 9 Sept 1974 [10 Sept 1973] 39221/74 Heading G4H Automatic drawing apparatus includes means for digitizing the position of a stylus on a platen, means defining a plurality of different indicia each capable of being selectably associated with positions on the platen, and a recording medium positioned adjacent the reverse of the platen with means for writing on it in response to position and indicia identification data. As disclosed, a stylus is applied to a tablet to select a character, then applied to a platen to specify the position at which the character is to be written, the X and Y coarse and fine positions of the stylus in each case being digitized using a grid of wires to which signals are applied (the coarse digitizations involving scanning the wires and gating out a count when the stylus is reached). The digitized valves are supplied to a computer via buffers, and the computer controls the two-dimensional position of write and erase heads behind the platen (which is transparent) to trace out the required character at the required position on a recording medium formed on the back of the platen. This medium may be covered with ink, recording being by removing the ink using a jet of abrasive powder. Erasing may then be done with an ink jet. Alternatively, positive recording (applying ink, erasing by removing it) may be used. The head X and Y positions are supplied in digital form to the computer. A keyboard feeding the computer is also provided.
Patent GB-1472047-A (GB)
Title: Textured yarns
IPC: D02G1/00
Filed: 1975-09-25
Abstract: 1472047 Producing crimped yarns BARMAG BARMER MASCHINENFABRIK AG 25 Sept 1975 [27 Sept 1974] 39308/75 Heading B5B [Also in Division D1] Textured yarns are produced from a bundle of filaments which have been produced by meltspinning a thermoplastic polymer and winding off at a speed of at least 3000 m./min., by heating and drawing them, asymmetrically cooling them and then setting the resultant crimp by heat. The cooling step is performed immediately after the heating and drawing step and in such a way that a temperature gradient is formed across the bundle at right angles to the direction of travel of the filaments. The relaxation step is performed by means which allow the degree of relaxation to be varied. The Specification discloses apparatus for producing the asymmetric cooling of the filament bundle. As shown in Fig. 4, the filament bundle 2 passes over the curved surface 24 of cooling member 16. Liquid coolant is used to remove heat from the bundle 2, the resultant vapour passing from evaporator 23, through pipe 27, to condenser 25 where the condensation is enhanced by provision of ribs 31 which assist in the dissipation of heat. Wick 29 is used to bring the liquid coolant into contact with the inside of surface 24. As shown in Fig. 5, a plurality of condensers 231-234 can be connected to the same condenser 33. Alternatively, as shown in Fig. 6, the filaments may be cooled by a contact member 34 which is in turn cooled by Peltier elements. These elements consist of two side pieces 35 and 36 each made of a doped semi-conductor connected at their ends by cold and hot copper contact bridges 37 and 38. The cold contact bridges 37 are in contact with the cooling surface 40, the hot contact bridges with heat transfer block 41 which dissipates the heat. The preferred filaments are hollow or of multilobar configuration and are particularly of polyester.
Patent GB-857780-A (GB)
Title: A new or improved apparatus for cleaning the sealing surfaces of the doors and door frames of horizontal coke ovens
Inventor: RANDELL GEOFFREY EDWARD CHARLE
IPC: C10B43/04
Filed: 1957-12-24
Abstract: 857,780. Cleaning coke oven doors &c. WOODALL - DUCKHAM CONSTRUCTION CO. Ltd. Dec. 23, 1958 [Dec. 24, 1957 ; March 26, 1958], Nos. 39569/58 and 9742/58. Divided out of 857,778. Class 99(2). Apparatus for cleaning the sealing surfaces of the doors 4, 5 and/or door frames 3, 3<SP>1</SP> of a horizontal coke oven comprises a main carriage traversable alongside a coke oven battery 1, mechanical door sealing surface cleaning means mounted on the carriage, and mechanical door-handling means also mounted on the carriage and adapted for engagement with a coke oven door to withdraw the door from, or to replace the door in, the frame thereof in the end of an oven, such door handling means and door sealing surface-cleaning means being so constructed and arranged that a door removed from an oven by the handling means may be brought in sealing-surface-cleaning relationship with the cleaning means for cleaning thereby. As shown, the cleaning apparatus 6, is mounted on the carriage of a pusher machine 7 adapted to travel on rails 8 alongside the battery 1, and the identical cleaning apparatus 6 is carried on a coke guide machine 9 of the battery and travelling on rails 91, both machines being capable of receiving not only the door sealing surface-cleaning apparatus but also apparatus 10, 10<SP>1</SP> for cleaning the sealing surfaces of the door frames. The door extracting and replacing heads 15 are advanceable towards and away from the battery in the direction of an oven 2 and is also rotatable through an angle of 90 degrees or more about a vertical axis 36 by a toothed segment 37 and pinion 38 driven by a power unit. An auxiliary carriage on which the apparatus 6<SP>1</SP> is mounted is advanced towards a door 5 when a scraping operation is to be effected. After the sealing surfaces of the door have been cleaned the carriage 9 is moved to bring the door frame cleaning: apparatus 101 into alignment with the oven. The cleaning apparatus is fully described in Specification 857,778. Specifications 682,811, 741,071, 856,095 and 857,779 also are referred to.
Patent GB-1241912-A (GB)
Title: Centrifugal pump
IPC: F04D29/22
Filed: 1969-08-08
Abstract: 1,241,912. Centrifugal pumps. G. BAUKNECHT G.m.b.H. ELEKTROTECHNISCRE FABRIKEN. Aug. 8, 1969 [Aug.21, 1968], No.39681/69. Heading F1C. [Also in Division H2] In a centrifugal pump, the impeller hub 21 or shaft 11 is formed with at least one axial groove 22 communicating with a radial bore 23 to provide a flow passage between the high-and low-pressure sides of the pump, which groove is dimensioned to allow air flow but prevent significant liquid flow therethrough. Thus, during operation, any air trapped in high pressure space 6<SP>1</SP> and, due to centrifugal effects, collecting around the shaft, is withdrawn through the groove 22, thereby reducing cavitation and consequent damage and noise. The radial bore 23 acts as a pump to withdraw liquid from the groove 22. Liquid for lubricating radial and thrust bearings 12, 13 is supplied from the space 6<SP>1</SP> through filter 18, axial bores 17' and radial grooves 26 into the space 17 within gap tube 16, and returns via radial grooves 27, bearing clearance, radial bores 24 and axial bore 25. Air trapped in the space 17 is withdrawn via the lubricanting-flow return path. The bores 24 are dimensioned to permit only a small liquid flow therethrough.
Patent GB-843754-A (GB)
Title: Improved independent vehicle suspension
IPC: B62D19/00
Filed: 1958-12-10
Abstract: 843,754. Shaft couplings; universal joints. GENERAL MOTORS CORPORATION. Dec. 10, 1958 [Dec. 30, 1957; Sept. 24, 1958], No. 39813/58. Class 80 (2). [Also in Groups XXXI and XXXII] In a vehicle driven road-wheel suspension (see Group XXXII), a joint in the drive shaft 64 is arranged to develop an axial thrust in the shaft in proportion to changes in braking or acceleration torque. In Figs. 3 and 4, the drive shaft 64 is formed with interengaging male and female respective portions 104, 100. A transverse pin 114 rigid with the portion 104 carries needle-roller mounted sleeves 122 which engage helically disposed tracks 108 formed in the female portion 100. Instead of the tracks 108 being of helical formation they may be machined as straight surfaces and disposed at an inclination to the axis of the shaft 64. In the construction shown in Figs. 8 to 10, the female portion 100 is formed with radially inwardly projecting portions 124, 126, which interfit with helical disposed grooves in the portion 104. Needle bearing rollers n are supported in an elongated loop cage 134 for antifriction action. In the construction of Figs. 12 and 15, the above-described joint is combined in a universal joint. The portion 104 of the shaft 64 carries radial projections 252, 252, on which are mounted respective rollers 250 with the interposition of needle roller bearings 254. A bearing cap 258 is also mounted in each projection 252. The bearing cap 258 and the roller 250 in respect of each projection 252 engages a helically disposed recess formed in the portion 100. There is a dirt-excluding boot 270.
Patent GB-1107252-A (GB)
Title: Improvements in master cylinders for hydraulic braking systems
Inventor: GODDARD ARTHUR
IPC: B60T11/20
Filed: 1963-10-10
Abstract: 1,107,252. Master cylinder. GIRLING Ltd. 17 Sept., 1964 [10 Oct., 1963], No. 39974/63. Addition to ;977,268. Heading F2F. The tandem master cylinder of the parent Specification is provided with springs between the pistons and between the secondary pistons and an adjacent cylinder end which are arranged so that when the pistons .are in their fully retracted positions the spring forces acting on the pistons are wholly contained within the piston sub-assemblies. The compression spring 21, between pistons 11, 12, is located between the outer end of a stem 45 slidable in a recess 47 in the main piston 11; the spring 24 between the secondary piston 12 and the end of the cylinder 10 is located between a valve cage 36 of the axially movable valve and an adjacent end of the secondary piston, the valve being coupled to piston 12 by a stem 37, carrying the valve at one end, the other end having a head alidably retained in a recess 39 in the piston 12. The head 52 on the slidable stem 45 may be secured to piston 12. The head 28 of the tiltable reservoir valve is of rubber and has an annular rib 29 on its upper face which is engagable with the underside of the seating.
Patent GB-1274795-A (GB)
Title: D.c. to d.c. converters
IPC: H02M3/335
Filed: 1970-08-20
Abstract: 1,274,795. Automatic voltage control and regulation. INTERNATIONAL STANDARD ELECTRIC CORP. Aug.20, 1970 [Aug. 22, 1969], No. 40098/70. Headings G3R and G3X. A D.C. to D.C. converter comprises a thyristor controlled inverter 1 supplying the primary winding of a ferroresonant transformer 2 whose output is passed to a rectifier 3, a filter 4 and an oscillator 5 driving the inverter 1, the frequency of the oscillator 5 being varied in response to the variation of the D.C. output current so that a corresponding variation is produced in the output voltage of the transformer 2 and hence in that of the converter. The output current IL is applied to the excitation winding of a transductor T, Fig. 3, which is supplied from an auxiliary winding of the transformer 2 and controls the D.C. output of a rectifier bridge B, variation of whose output produces, through a transistor Q2, a variation of the frequency of a conventional oscillator formed by the circuit elements Q1, C1, R1, R2 and R3. Diode D prevents "runaway" in the event of an overload. In Figure 4 the voltage across the filter 4 is detected and compared with a reference signal 7 in a comparator 6, whose error signal is passed to a transfer device 5 which produces a corresponding signal for application to an oscillator 8 controlling the inverter 1. The signals from members 5 and 6 are isolated from one another by use of a suitable device to constitute the member 5, for example a light emitting device receiving the error signal and a light-sensitive detector producing the signal.
Patent GB-1036294-A (GB)
Title: Improvements in or relating to foil winding off devices for packing machines
IPC: B65H19/20
Filed: 1964-10-02
Abstract: 1,036,294. Feeding webs. O. NIEPMANN, and G. MONNINGHOFF, [trading as MASCHINENFABRIK FR. NIEPMANN & CO.]. Oct. 2, 1964 [Oct. 4, 1963], No. 40136/64. Heading B6B. Webs 2a, 3a are fed from rolls 2, 3 round rollers 5, 6 and between rollers 9, 10 to a packing- machine. With the mechanism in the position illustrated, the web 2a is in use, while the replacement web 3a is threaded into the mechanism and provided at its end with an adhesive strip 36. When the diameter of the roll 2 diminishes to a predetermined point, a feeler lever 43 resting on the roll closes a switch 44a and a magnet 42 acts through a rod 41 and rocker arm 33 to release a stop 35 on a lever 24 carrying a pressure roller 29. A lever 25 carrying a pressure roller 30 is geared to the lever 24, and a spring moves the rollers together to bring the web 2a and strip 36 together. Rods 45, 46 pivoted to the levers 25, 24 are also moved, and a cam 48 on the rod 46 engaging in a notch in a disc 49 rotates the disc so as to swing a cutter head 12, carrying cutter beams 15 arcing to both sides, about its pivot 11, whereupon the beams 15 co-operate with a groove in a bar 32 on the lever 25 to sever the web 2a. The rods 45, 46 are urged together by a spring 50. With the web 3a then in use, a new roll 2 is placed in position and the lever 43 is swung over to engage the roll 3, whereupon by means of a chain 52 a cam 51 is rotated through half a revolution, disengaging the cam 48 from the disc 49 and engaging a cam 47 on the rod 45 with a second notch in the disc. When the magnet is again energized as the web 3a becomes exhausted, through a switch 44b, the cutter head will be swung in the opposite direction to sever the web 3a.
Patent GB-1361065-A (GB)
Title: Forage crop dryer
IPC: F26B17/00
Filed: 1971-08-27
Abstract: 1361065 Endless conveyers; hoppers H C M RUIGROK 27 Aug 1971 [31 Aug 1970] 40329/71 Headings B8A and B8S [Also in Division F4] Forage crop may be delivered by an elevator shoot into an opening 14 but preferably is dumped on to the end wall 18 whence it is conveyed by a conveyer 22, 23 on to a distributing conveyer 38 which delivers crop into the chamber 12, the floor 63 of the chamber 12 comprising a plurality of parallel rotatable shafts 64 provided with vanes or prongs so that when the shafts 64 are not rotated the crop is supported on them for drying by upward passage of heated air between them, and when the shafts 64 are rotated the dried crop is discharged between them into the air plenum 62 whence the crop is conveyed by an endless belt 82 or straw walker to a discharge air lock 89. The drying chamber 12 is roofed over, and may be a building, or be a vehicle body, or be housed in a shed. The conveyer 22, 23 comprises a belt provided with cropengaging cleats 26 and fixed at its edges to chains 27 meshing with driven sprockets 28. A pronged reel 33 is driven oppositely to the conveyer 22 so as to level the swathe. The distributing conveyer 38 comprises a driven endless belt mounted on a truck 39 driven to and fro along rails fixed to the chamber 12. The truck 39 comprises a reversible motor driving a sprocket meshing with a fixed rack chain, and carries a striker which travels between fixed limit switches 58, 59. The shafts 64 are tubular and may extend longitudinally (as shown) or laterally of the chamber 12, and are alternately contra-rotated by meshing gear pinions, or (as shown in Fig. 3) by chains 76 engaging sprockets 78 on the shafts 64. Each shaft 64 carries longitudinal helical vanes 67 and square non-planar plates 66. Hot air is delivered by blower 79 and heater 81 into the plenum 62 through a side wall or the floor. Dried crop is discharged from the air lock 89 into an auger conveyer 92 delivering to a hammer mill and then to a pelletizer. The dryness of the crop may be sampled periodically or monitored automatically by hygrometric probes 93 and 94.
Patent GB-1127302-A (GB)
Title: Improvements in or relating to the production of spring assemblies
Inventor: FOREMAN CHRISTOPHER ROY
IPC: B21F33/04
Filed: 1964-10-02
Abstract: 1,127,302. Assembling mattress springs. PULLMAN (PATENT) PRODUCTS Ltd. 4 Oct., 1965 [2 Oct., 1964; 5 May, 1965], Nos. 40356/64 and 19045/65. Heading A4M. Helical upholstery springs 10 are assembled in parallel rows and are interconnected by means of crimp wires 11, parallel to the rows and having crimp portions 12 each of which comprises loop shaped in elevation as a U having a lip extending from the end of the free limb, the machine including spring feeding trays moved into the machine so that the crimp wires and the springs are received by the machine with the spring end coil overlapping the end coil of the preceding row, the crimp wires being then turned to interlace with the overlapping end coils and the trays withdrawn. The assembly is then moved a step forward and the portions 12 are clinched by anvils and rotary hammers. At the rear outlet of the machine a cropping mechanism severs the ends of the crimp wires.
Patent GB-1085688-A (GB)
Title: Process for removing carbon dioxide from gases containing ammonia
IPC: B01D53/62
Filed: 1966-09-09
Abstract: Carbon dioxide is removed from gases containing ammonia by passing the gas mixture through a bed fluidized by the gas flow at a temperature below 60 DEG  C., ammonium carbamate and carbonates being deposited.  The ratio of NH3:CO2 should be at least 2:1 or if water is present at least 1:1.  The bed may consist of an absorbent granulated gel, or other inert material such as sand, and cooling may be supplied by the injection of liquid ammonia or by cooling coils. The bed may be regenerated with steam or by passing the NH3/CO2 mixture with heating.
Patent GB-1424385-A (GB)
Title: Tunnel furnace
IPC: F27D7/00
Filed: 1973-08-28
Abstract: 1424385 Furnace atmospheres LUDWIG RIEDHAMMER 28 Aug 1973 [9 June 1973] 40473/73 Heading F4B Articles, e.g. ferrites, to be sintered are conveyed through a tunnel furnace on carriers 4, each of which is provided with a covering hood 5 and with a container 6 for gas, such as nitrogen, whereby the oxygen content of the atmosphere within the hood may be varied. The container 6 is provided with a shut-off valve 9 which is provided with an actuating member 10 and which controls the flow of gas through a passage 7 into the space beneath the hood 5. The furnace has a pre-heating zone, a high temperature zone and a cooling zone and counter-air is fed to the furnace outlet. Elements are arranged in the furnace along the path of the carriers to engage the actuating member 10 for operating the valve 9. The elements are arranged so that the valve 9 is opened as the carrier enters the pre-heating zone and is closed as it approaches the high temperature zone in which the oxygen content within the hood increases through leakage thereinto of the counter-flowing air. The valve is re-opened as the carrier passes through the cooling zone and is closed on the return track, Fig. 4 (not shown).
Patent GB-1462443-A (GB)
Title: Bloat control formulations
IPC: A23K1/16
Filed: 1974-09-17
Abstract: 1462443 Anti-bloat compositions CASTROL Ltd 17 Sept 1974 [26 Sept 1973] 40512/74 Heading A5B Orally administered anti-bloat compositions comprise a surfactant, e.g. a polyethylene glycol ester of n-dodecylic acid, polyoxyethylene oxide/polyoxypropylene oxide copolymer, or polyoxyethylene alkyl ethers, and a phospholipid, e.g. lecithin, A bloat oil, e.g. safflower or rape seed oil may also be present.
Patent GB-902917-A (GB)
Title: Self activated and/or regulated flow control for ships rudders and stabilizer fins
IPC: B63B39/14
Filed: 1959-12-01
Abstract: 902,917. Rudders and stabilizers. WARNER, T. C. Nov. 9, 1960 [Dec. 1, 1959], No. 40723/59. Classes 113 and 114. A control surface for steering or stabilizing ships of conventional steel plate and framework construction has two spanwise rows of suction holes 24 on both sides, a rotary valve 13 for opening and closing the suction holes, and a trailing-fin-aligned Venturi tube 8 the throat walls of which have ports 12 communicating with the passages 23 of the rotary valve via the hollow shaft 15 supporting the Venturi tube. When said control surface is a rudder with the Venturi tube which provides suction within the rotary valve free to rotate independently of the valve which is driven by an hydraulic telemotor carried on the stock head, this telemotor is driven by the transmitting telemotor which serves the ships steering engine central valve, a flow selector valve actuated by a cam driven from the helm causing the rotary valve telemotor to operate before the steering machinery is set in motion by its own control valve when the helm is moved beyond the point of maximum suction valve opening. When the control surface is fitted to the hull as a bilge keel or stabilizing fin, said surface 66, Fig. 10, may have a small plate 68 at its tip (55 is the Venturi tube) to improve the spanwise pressure distribution.