baber/WOPTO huggingface dataset:
Patent GB-945759-A (GB)
Title: Improvements in or relating to apparatus for lifting and lowering loads
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B66F9/08
Filed: 1961-07-20
Abstract: 945,759. Lift trucks; counter-balancing. GEO. W. KING Ltd. July 20, 1962 [July 20, 1961], No. 26325/61. Headings B8B and B8H. A mast assembly extending below an overhead trolley (not shown) comprises a section 10 supported by the trolley, a second section 11, slidable vertically on the section 10 and connected to a counterweight 14, which is heavier than the section 11, by cables 12 passing over a pulley 13 mounted on the section 10 or on the trolley, and load supporting platform or forks 15 which are slidably supported on the section 11. Cables 16 secured to the load support 15 pass over power driven pulleys 17 mounted on the mast section 10 or on the trolley and are secured to the bottom of a container 18 mounted on the counterweight 14. In operation, starting from the position shown, the pulleys 17 are rotated to raise the load support 15, and as the load support rises, the counterweight 14 raises the mast section 11. Any slack produced in the cables 16 after the mast section 11 has reached its upper limit of travel is accommodated in the container 18. In lowering the load support from its uppermost position, the load support is lowered on the mast section 11 until the cables 16 become taut, whereupon further lowering of the load support causes the cables 16 to raise the counterweight thereby allowing the mast section 11 to fall. In an alternative embodiment (not shown), the mast assembly extends upwardly from a mobile carriage.
Patent GB-660809-A (GB)
Title: Improvements in or relating to the holding and manipulating of workpieces for riveting
IPC: B21J15/30
Filed: 1948-10-09
Abstract: 660,809. Riveting. TATA LOCOMOTIVE & ENGINEERING CO., Ltd., and AMES, W. H. Oct. 9, 1948 [Feb. 27, 1948], No. 26345/48. Classes 83 (iii) and 83 (iv). In a device for manipulating locomotive fire-boxes and the like during riveting, the work is supported on a horizontal turntable B1. carrying stands E to hold the workpiece and on which it may be rotated to any position about a horizontal axis. The work is held by clamps I between discs F, F1, which are supported by trunnions H in stands E and may be rotated thereon by means such as an electric motor G. The stands E are slidably fixed on the turntable B1 and are radially adjustable by hand wheels on screwed rods C to accommodate different sizes of work. The turntable B1 is pivoted at P and rotatable by hand or power on concealed rollers D in a fixed race Al.
Patent GB-767854-A (GB)
Title: Improvements in or relating to cold-pressing hard metals for producing cup-shaped articles
IPC: B21K21/00
Filed: 1954-09-11
Abstract: 767,854. Forging; punching. SCHONDELMAIER, C. Sept. 11, 1954, No. 26358/54. Classes 83 (2) and 83 (4). Making valves.-A method of making a cupshaped article 3<SP>1</SP>, particularly a closure member for a valve, having on the outside of its base an axial pin 7 surrounded by an annular groove 6, comprises cold-pressing a blank in a closedended die 8 by means of a ram 1 having a cylindrical or conical nose or mandrel for forming the hollow 5 and a flat surface for forming a flat flange 4. The die is closed by an ejector 9 whose upper surface forms the pin and groove. The flange may subsequently be removed by a punch and die set 10, 11, Fig. 4. For use as a valve closure member, a gasket is inserted in the groove and the pin 7 is threaded for receiving a washer and lock-nut for holding the gasket in position.
Patent GB-854915-A (GB)
Title: Cutter for a pile-cutting machine
Inventor: SHEEN FRANK ROBERT
IPC: B26B19/24
Filed: 1957-08-21
Abstract: 854,915. Hedge cutters. LISTER & CO. Ltd., R. A. Aug. 12, 1958 [Aug. 21, 1957], No. 26375/57. Class 6(2). [Also in Groups VIII and XIV]. A cutter for a hedge-trimming machine comprises a toothed cutting plate 12 detachably held to a backing member 11 by pins 21 which have stems 19 engaging apertures in the plate and are retained in the backing member by shoulders 20 and pressing 23. The cutting edges of the plate project beyond the backing member and are raked, resharpening being done in the usual way, or are vertical to the flat surfaces of the plate, the plate being inverted when the cutting edges at one surface become worn. The plate may be of wafer thickness and have apertures or superficial recesses to minimise friction and provide clearance for foreign matter.
Patent GB-392803-A (GB)
Title: Improvements in apparatus for drying, or sizing and drying, carpets
IPC: F26B13/18
Filed: 1932-09-22
Abstract: 392,803. Drying carpets. MONFORTS, J., 21, Kronprinzenatrasse, Gladbach, Munich, Germany. Sept. 22, 1932, No. 26398. Convention date, Nov. 24, 1931. [Class 34 (i).] A machine for drying carpets, e.g. for use after sizing, has two heated drying drums in series, and guide rollers arranged for feeding the carpet to the first drum and off the second, the carpet passing between the drums without its pile side touching a guide roller. One or both of the guide rollers may be resiliently mounted. In the form shown, the entering wet or sized material passes over guide rollers 4 .. 7, over the drying drums C, D, and, when completely dried, leaves by way of rollers 8, 9,10. The rollers 7, 8 are resiliently mounted.
Patent GB-323038-A (GB)
Title: Dielectric material for submarine cables
IPC: H01B3/28
Filed: 1928-09-14
Abstract: 323,038. Standard Telephones & Cables, Ltd., and Field, M. C. Sept. 14,1928. Compositions containing rubber &c. and wax. -A dielectric composition comprises an organophilic gel of rubber which has been allowed to swell in a mineral wax, the proportion of wax being 30-80 per cent of the whole, Suitable waxes are hard white ceresin, paraffin, purified montan, to which may be added small quantities of carnauba or candelilla wax. The rubber, natural or synthetic is allowed to swell in the molten wax, the temperature and time being kept as low as possible, 80-100‹ C. and 6-12 hours being generally sufficient. After swelling, the mass is masticated for a short time, heated to 80-100‹ C. for about an hour and cooled. Gutta percha, balata and the like may be added. Several examples are given within the following limits, 15-40 per cent of rubber, up to 40 per cent of gutta percha or balata, and 20-70 per cent of mineral wax.
Patent GB-1017135-A (GB)
Title: Servomechanism
IPC: G05B19/44
Filed: 1963-07-03
Abstract: 1,017,135. Washing machines. ROBERTSHAW CONTROLS CO. July 3,1963 [Sept. 25, 1962], No. 26404/63. Heading D1A. [Also in Division F2] The flow of liquid in a washing machine is controlled by a mechanism comprising a rigid base, a motion-transmitting flexible wall mounted on the base and forming therewith an expansible and contractible chamber, a plurality of pneumatic inlets carried by said base and adapted to vary the volume of said chamber, and means operably associated with said inlets and said wall for closing selected ones of said inlets upon variation in said chamber volume. In Fig. 2 a base 12 is closed by a flexible and resilient diaphragm 16 to which is connected externally a motion-transmitting member 22 and internally a plate 20. Four inlet tubes 24 pass through the base, one being flush therewith and three being provided with respective bellows formations 28, 30, 32 of differing heights. In operation, diaphragm 16 flexes downwardly until plate 20 closes the lowest upper end of an inlet 24 to which suction is applied, the higher bellows formations collapsing accordingly. In Fig. 3 (not shown) a rigid base 42 has an upper rigid portion 44 closed by a diaphragm 48 carrying a motion-transmitting element 54 and a plate 52 provided with collapsible members 62, 64, 66 of differing lengths adapted to close the inner ends of inlet tubes 60 in succession upon flexing of diaphragm 48 when suction is applied to said inlets. In Fig. 5 (not shown) the motion-transmitting elements 126, 127 of units 99,100, similar to that shown in Fig. 3, are connected to levers 121,122 controlling the positions of valve members 119, 120 of hot and cold water inlets respectively of a mixing valve 118. A surface 80 is provided with ten apertures 81 to 90. Apertures 81 and 86 are connected to a vacuum pump 103. Apertures 82 to 85 are connected to unit 99, and apertures 87 to 90 are connected to unit 100. A valve member, as described in Specification 1, 017, 222 and comprising a flexible sheet formed with blisters of varying lengths, is movable over surface 80 to connect apertures 81 and 86 selectively to apertures 82 to 85 and 87 to 90 respectively, for varying the positions of the valve members 119,120 to control the temperature of the water issuing from the fitting 118.
Patent GB-697979-A (GB)
Title: Foundry cupola
IPC: F27B1/16
Filed: 1950-10-30
Abstract: 697,979. Cupola furnaces. RONCERAY, R. A. M. Oct. 30, 1950 [Sept. 25, 1950], No. 26443/50. Class 51(ii) In a cupola furnace 1 having an air box 3 and a cooling air jacket 11 enclosing the shaft below the air box down to and including the convergent, equally spaced tuyeres 16, the air box is divided by a horizontal partition 5 and the air jacket is provided with partitions 12 defining compartments 13 each feeding a single tuyere. The compartments 13 are connected alternately to the upper and lower sections of the air box, the entry to these sections from an air supply duct 4 being under control of a slide valve 6 actuated automatically from a compressed air cylinder 8 under control of a valve 9 and clockwork mechanism 10. Blast air is thus supplied to alternate tuyeres at a given interval and during the time any particular tuyere is out of action, accretions of refractory material which tend to accumulate on the upper edge are melted off. Inspection doors 17 are provided in front of each tuyere.
Patent GB-674000-A (GB)
Title: Improvements in or relating to prestressed concrete structures
Inventor: SILVERA VICTOR MOSES
IPC: E04B1/32
Filed: 1949-10-14
Abstract: 674,000. Prestressed concrete; beams; roofs. MOUCHEL & PARTNERS, Ltd., L. G. Aug. 4, 1950 [Oct. 14, 1949], No. '26482/49. Class.20(iv). A concrete shell of substantially semicircular cross section is provided. with a prestressing reinforcement of continuous curvature, the reinforcement imparting to the edges a set of reactions equal to those which would be produced by a rigid support placed under the edges. In Fig. 3 the invention is shown applied to a roof structure which consists of a number of bays, each covered by a shell 10 of thin concrete. Below the junction of each adjoining pair of shells is placed a beam 12, supported at its ends. The beam, which is shown in Fig. 7, is provided with a curved duct extending from one end to the other, a steel reinforcing element 17 being threaded through the duct. The reinforcing element is tensioned and anchored against the beam ends and, due to its curvature, exerts a lifting force which increases towards the mid-point of the lengths of the beam. The hogging of the beam due to this force is prevented by prestressed reinforcement 19, 21 and 22, whilst the force serves to counteract the downward thrust due to the weight of the shells, so that shells of considerable length can be supported without sagging by beams which are supported only at their ends. The separate beams may be dispensed with by placing the curved reinforcement in the material of each shell. In a modification, Figs. 8 to 10 (not shown), polygonal shells are supported without deflection in a similar manner, the curved reinforcement being arranged in each side member and tensioned so as to produce the same reactions at the junctions of the members as would be produced by continuous rigid supporting means.
Patent GB-849841-A (GB)
Title: Improvements in or relating to chance apparatus
IPC: A63F5/04
Filed: 1957-08-22
Abstract: 849,841. Watches. HEIMERDINGER, E. July 2, 1958 [Aug. 22, 1957], No. 26528/57. Class 139 [Also in Group XV] A watch 5 forms the centre part of a roulette apparatus consisting of an inner part 2 having a pointer 11a, an outer annulus 1 bearing indicia, and interposed ball-bearings 22.
Patent GB-1336457-A (GB)
Title: Rotor arms for ignition distributors of internal combustion engi nes
IPC: F02P7/02
Filed: 1971-04-19
Abstract: 1336457 Regulating I.C. engines POUR SOC ANON L'EQUIPEMENT ELECTRIQUE DES VEHICULES SEV MARCHAL 19 April 1971 [20 April 1970; 2 June 1970] 26558/71 Heading F1B [Also in Division H1] A rotor arm 5 of an ignition distributor carries a conductive tongue 4 receiving high tension from terminal 3 and distributing it to electrodes 7 and a conductive element 10 rotatable by centrifugal force against the action of return spring 12, element 10 being held in the retracted position up to a predetermined speed of the rotor arm. Element 10 includes a weight portion 10a and extensions 10b, 10c. When the predetermined speed is reached, element 10 pivots on pin 11 and extension 10c controls tongue 4 and extension 10b lies opposite to the outer end 4a of tongue 4, as shown in Fig. 3. Thus when the predetermined speed is reached end 4a lies under the electrode corresponding to terminal 2a at top dead centre of compression of fresh gas in the corresponding cylinder and extension 10b lies under the electrode corresponding to terminal 2c at top dead centre for compression of expanded gas in the corresponding cylinder. Since the resistance of expanded gas is less than that of fresh gas the spark occurs in the cylinder connected to terminal 2c and the fresh gas is not ignited. The engine therefore slows down until element 10 is retracted by spring 12. Thus the top speed of the engine is controlled at a predetermined value. As an alternative, a conductive bracket 33, Fig. 6 (not shown) is fixed between spindle 6 and the position taken up by extension 10b at the predetermined speed so that the extension 10b contacts the bracket and the high tension is earthed to prevent the fresh gas being ignited. Instead of element 10 being all metal it may consist of a metal conductive strip 32, Fig. 5 (not shown) moulded in a plastics plate. In a second embodiment, Fig.7, the tongue on the rotor arm has two extensions between which is pivoted a lever 59 joined by return spring 65 to a lug 51 of the tongue, lever 59 swinging rearwardly at the predetermined speed to lie beneath the electrode opposite to that under which the outer end 48a of the tongue is situated. As an alternative, a spring clip 67, Figs. 11, 12, 13 (not shown) may correct the lever 59 in its position at speed to spindle 44 to earth the high tension. The element 10 or lever 59 is restrained by the return spring 12 or 65 from moving until the predetermined speed is reached.
Patent GB-246600-A (GB)
Title: Improvement in machine for and method of producing ring travelers
IPC: B21D51/10
Filed: 1924-11-07
Abstract: 246,600. Wentworth, P. C. Nov. 7, 1924. Spinning yarns and threads, apparatus for.- Ring travellers of the type described in Specification 174,068, [Class 120 (ii), Spinning, twisting, &c.], for spinning machines are made by intermittently feeding ribbon-like strip S by feed-rolls 9 firstly under a punch 21 whereby a central aperture is punched in the strip as shown at S<1>, Fig. 17, and secondly under a reciprocating bender 50, which, coacting with a fixed cutter 60, severs the strip and bends the ring blank so formed round a mandrel 11. Pivoted benders 70 are then operated to complete the bend, after which the mandrel is withdrawn laterally to allow the ring traveller to fall. The punching mechanism is longitudinally adjustable relatively to the bending mechanism by a screw 17, and comprises a cam-operated head 23 and laterally adjustable guides 26, Fig. 16, for accommodating, in the recesses 27, strips of various widths. The dies 25<c> are in halves connected by screws and are locked in a block 25<1> by screws 25f, the block being secured to the base of the punching mechanism by screws 25<2>. The feedrolls are intergeared, the lower being upwardly pressed by a spring 41. The upper roll is intermittently driven through spur gearing by a gear 36 carrying a pawl 40 which engages with a ratchet fixed on a shaft 35, the latter having keyed thereon a pinion 34 which is oscillated by a toothed segment on a lever rocked by a cam 30. The lever is spring-returned and the angle of oscillation of the lever may be adjusted by a stop to regulate the length of strip fed at each revolution of the camshaft 2. The strip is fed against an adjustable stop 100. The benders 70, which complete the traveller after the cutter 50 has severed the blank and initially bent it round the mandrel 11, are carried by blocks 72 adjustably secured to the ends of spring-pressed levers 73 which are pivoted at 74 and are actuated by cams 76. The mandrel is withdrawn laterally to strip the ring, after the final bending operation, bv a cam-actuated lever 62.
Patent GB-1005286-A (GB)
Title: Improvements in or relating to apparatus for the synchronisation of two rotating members
Inventor: HOWARD DONALD HENRY EDWARD
IPC: H02P5/50
Filed: 1963-07-05
Abstract: 1,005,286. Pulse radar. S. SMITH & SONS (ENGLAND) Ltd. April 3, 1964 [July 5, 1963], No. 26654/63. Heading H4D. The invention relates to the synchronization of two rotating members, one of which is driven by a synchronous A.C. motor energized by A.C. generated by or derived from an A.C. generator coupled to the motor driving the other member. In order to ensure that the relative angular positions of the members are the same, pulses from micro-switches associated with the members, e.g. the P.P.I. deflection yoke and the aerial of a marine pulse radar, are fed to bi-stable circuits 8, 9 which are controlled also by the anti-phase outputs A, B of a mono-stable circuit 7 triggered by pulses from a shaping circuit 5 fed from an output derived from the A.C. generator 1. Generator 1 has a three-phase output which feeds Scott-connected transformers 2 to afford a two-phase output which is connected to P.P.I. motor 4 via a relay 2. One phase output of transformers 2 is shaped to afford a square wave from which by differentiation and clipping a series of positive pulses issues from unit 5; each pulse triggers monostable multivibrator 7 and the rising edge of waveform A is arranged to precede that of waveform B by one millisecond. Assuming that the aerial and P.P.I. yoke are rotating at the same speed but in an incorrect angular relationship: when the yoke microswitch is operated bi-stable circuit 8 is triggered to its " 1 " state and is re-set by the next rising edge of waveform A. A pulse is passed to a bistable circuit 10 which is triggered to its " 1 " state thereby actuating relay 3 to disconnect the A.C. supply to motor 4, and a D.C. current is passed from source 6 through one phase of the motor to bring its rotor to one of its n possible positions, there being n pairs of poles on the motor's stator. When the aerial micro-switch is operated, bi-stable circuit 9 is triggered to its " 1 " state and is re-set by the next rising edge of waveform B. A pulse passes to re-set circuit 10 and actuates relay 3 to re-establish the A.C. supply to motor 4 and to cut-off the D.C. supply thereto. Motor 4 then starts substantially instantaneously. Two selectable micro-switches are associated with the deflection yoke: one is fixed to afford a heading-stabilized display, and the other is driven by a compass repeater motor to afford a " north-upwards " display.
Patent GB-1166588-A (GB)
Title: Improvements in High Temperature Endothermic Reactions
Inventor: WIESENTHAL PETER VON
IPC: C10G9/20
Filed: 1968-06-05
Abstract: 1,166,588. Tubular furnace. ALCORN COMBUSTION CO. 5 June, 1968, No. 26698/68. Heading C5E. A tubular furnace for high-temperature endothermal conversion of hydrocarbons, e.g. steam cracking to produce olefins, catalytic reforming in the presence of hydrogen to improve octane rating, and catalytic steam reforming to produce H 2  and CO, comprises a radiant furnace chamber 2 having furnace tubes 12 mounted vertically therein, means for supplying hot combustion products to the furnace, e.g. burners 3, an elongated convection section 6 communicating with the furnace chamber via a port 4 through which combustion products leave the furnace chamber and enter the convection section, and vertically mounted convection tubes 13 within the convection chamber, these tubes having extended surfaces 14 projecting therefrom, the amount of extended surface being greater on each succeeding downstream tube. Part of the hydrocarbon feed is passed down tubes 12 and part down tubes 13, the extended surface on the latter tubes enabling increased heat transfer to compensate for the combustion gases being cooler so that reaction is maintained. The convection section may contain trim burners 17 for sensitive control of the heating in this section.
Patent GB-1342777-A (GB)
Title: Vapour generating system utilizing waste heat
IPC: F01K23/10
Filed: 1971-04-19
Abstract: 1342777 Steam generators BRAYTON CYCLE IMPROVEMENT ASSOCIATES 19 April 1971 [5 May 1970] 26725/71 Heading F4A [Also in Division F1] A steam or other vapour generating system utilizing waste heat comprises a water or other liquid heaters 7 and a series of superheaters 4, 5, 6 heated by waste heat in a heat recovery section 3, a first set A of liquid receivers 17, 24, 31 arranged in series and of successively decreasing pressures and temperatures, each receiver being connected through valves 19, 26, 33 and pumps 18, 25, 32 with a corresponding vapour separator 20, 27, 34, valves 16, 23, 30 for admitting hot liquid from the heater 7 to the liquid receivers 17, 24, 31, a valve 21 for admitting vapour produced by flash vapourization in vapour separator 20 to the high pressure superheater 4 and then to a high pressure turbine 8 from which it exhausts to line 60 which also receives vapour at intermediate pressure from separator 27 whereby the mixed vapour passes through superheater 5 and into intermediate pressure turbine 9 and then after mixing with low pressure vapour from separator 34 through superheater 6 and into low pressure turbine 10, and a second set B of liquid receivers 39, 46, 53 with their corresponding vapour separators 42, 49, 56 arranged in parallel with those of the first set and working alternately therewith. The waste heat is provided from the exhaust of a Brayton cycle gas turbine 63 having a compressor 2 and combustor 64. From L.P. turbine 10 exhaust steam passes through a condenser 11 and then mixes with water leaving the receivers 31 or 53. Although water is the preferred working liquid, others such as fluoro carbons or ammonia may be used. The number of nozzles in use in the turbines 8, 9, 10 may be increased progressively to compensate for the reduction in pressure and temperature of the steam supplied from their respective separators.
Patent GB-722862-A (GB)
Title: Equipment for the growth of crystals
IPC: C30B7/00
Filed: 1952-10-24
Abstract: <PICT:0722862/III/1> In crystal growing apparatus for growing, e.g., piezo-electric crystals, in which the rowing tank is maintained at a constant temperature, heat is supplied to the tank by two substantially independent water-jackets, one supplying heat through the walls and one through the base of the tank.  The tank 1 is surrounded by a temperature controlled water jacket 2 and a separate independently controlled water jacket 3 at the base of the apparatus. By this means it is possible to provide the correct temperature in the bulk of the liquid in the tank 1 and a slightly higher temperature at the base to dissolve spurious seeds settling to the bottom of the tank.  In a modification the jackets 2 and 3 communicate through adjustable openings in the dividing partitions 4 so that the one heater in jacket 3 suffices for both jackets 3 and 2. A lamp 6 is provided for illuminating the (glass) tank 1.