baber/WOPTO huggingface dataset:
Patent GB-219007-A (GB)
Title: Improvements in or relating to nail-making machines
IPC: B21G3/16
Filed: 1924-02-08
Abstract: 219,007. Lestrade, A. March 10, 1923, [Convention date]. Nails.-A machine for making nails has dies 4, Fig. 8, which hold the wire while a previously made nail has its point forged and is then torn away, to make a sharp point, by dies 65 and also while a head is forged on the projecting end. The dies 4 then rotate about axes in a plane at right angles to the wire which is thus advanced and rolled. The dies 4 are advanced to grip the wire by eccentric pivots 15, Fig. 2, on shafts 16 turned by their levers 36, Fig. 4, being acted upon by wedges 37 moved by levers 39. The projecting end of the wire is then upset by a die 47 moved axially, against springs, by slides 46, 55, Fig. 1, lever 56, link 57, and lever 74 and then raised out of the way by a lever 51, link 52, Fig. 4, and lever 53. The dies meanwhile are moved about their pivots 13, 15, Fig. 2, by rods 21, Fig. 1, slide 29, links 32 and lever 31 thereby rolling the nail shank. The dies are then opened and returned while the wire is fed through a guide tube 33 by a gripper 89 closed by a spring 94 and advanced by a lever 85, having its pivot 87 adjusted by a wedge 86 to vary the feed, a link 84 and lever 31. The gripper is opened during the advance of the dies by a lever 93, link 92, lever 91, cam 90 and lever 39 and is then moved back. The point of the nail is formed by dies 65, Fig. 8, adjustably secured by screws 69, 70, Fig. 4, in holders 64 which are pivoted at 68, Fig. 1, to a pivoted frame 61 so that they can be closed by wedge faces 62 of the lever 74 and then moved to the left by a link 78 connected to the header guide 44 which is at this time moving to bring the header into operative position. This movement of the dies 65 breaks the nail from the wire which is again held by the dies 4. The dies 65 then open and the nail falls down a shoot 79. The guide 44 is pivoted to a lever 41 connected by a link 43 to the lever 31 so that it moves svnchronously with the dies 4. All the movements are obtained by cams on the driving shaft 3. The machine is arranged in an oil tank 1 so that it is lubricated by splashing and is closed in by a cover 2.
Patent GB-407731-A (GB)
Title: Improvements relating to apparatus for and methods of drying coal and other granularmaterials
IPC: F26B17/04
Filed: 1932-09-23
Abstract: 407,731. Drying coal. NORTON, B., Sandford Hall, Claverley, Shropshire. Sept. 23, 1932, Nos. 16506/33 (divided application and 4389/33. [Class 34 (ii).] A bed of moist coal is caused to travel in succession through a series of chambers, in each of which a stream of hot air or other gas is passed through the bed to evaporate and carry off a substantial part of its moisture. Successive streams of air may pass alternately upwards and downwards through the coal, and may be of decreasing temperature. The gases may pass through only the upper run of the conveyer. Thus in one case coal is dried to a moisture content of 2 per cent by passing a layer of 2 inches in depth beneath hoods of a total length of 15 feet at 20 feet per minute, hot air of an initial temperature of 350‹ C. being passed through the material at 574 feet per minute. In one form, small coals pass from a hopper 4 on to a perforated conveyer 1. Hot gases, for example from a coke-maker's plant, are supplied to hoods 5, and are drawn through the upper run of the conveyer into chambers 8. Plates 12 co-operating with transverse strips 11 check efflux of gases to the atmosphere and plates 13 check influx of atmospheric air. The thickness of the layer of coal is controlled by means of a gate in the hopper 4. The velocity of the conveyer may be varied. Other forms show pipe connections whereby alternate downward and upward streams of gas are obtained, and also show a sliding door in the second hood whereby atmospheric air may be admitted to reduce the temperature of the second air stream. Specification 236,936, [Class 34 (ii)], is referred to.
Patent GB-1093326-A (GB)
Title: Abrasive cut-off wheels
IPC: B24D5/12
Filed: 1966-04-15
Abstract: 1,093,326. Grinding. CARBORUNDUM CO. April 15, 1966 [April 28, 1965], No. 16517/66. Heading B3D. An abrasive cut-off wheel comprises a central body portion 1 having radially extending circumferentially spaced apart posts 3, an abrasive sawtooth 2 between each pair of adjacent posts, and means secured to the posts for holding the abrasive teeth in place. The posts have bevelled lateral edges 4, Fig. 2, which converge towards the centre of the wheel and engage the tapered edges 5 of the teeth 2. Each tooth is secured to the wheel by shoes 9 which also have tapered edges engaging tapered edges 5 of the teeth and ribs 11 which abut the posts 3. Screws 12 urge the shoes towards the posts to secure the teeth to the wheel. The teeth have wings 8 extending over the posts to form a substantially continuous rim on the periphery of the wheel.
Patent GB-805892-A (GB)
Title: Improvements in or relating to jib cranes
Inventor: BAKER JOHN
IPC: B66C13/18
Filed: 1955-06-09
Abstract: 805,892. Luffing cranes. CLYDE CRANE & BOOTH Ltd. May 18, 1956 [June 9, 1955], No. 16614/55. Class 78 (4). [Also in Group XXIX] A ram 3 for luffing the jib of a crane is connected to a piston 2 in an hydraulic cylinder 1, and may be driven in either direction by a rotary valveless pump 5. A similar pump 6 supplies extra fluid from a reservoir 9 on the outward stroke of the ram, and returns it to the reservoir on the inward stroke. The two pumps are driven together by a reversible and variablespeed electric or other motor 15 fitted with a brake 16. Non-return valves 11, 12 allow for any leakage, and relief valves 13, 14 guard against excess pressure in the system. Valves 17 allow the ram to be locked hydraulically if necessary.
Patent GB-317572-A (GB)
Title: Improvements in and relating to the manufacture of bleaching powder
IPC: C01B11/06
Filed: 1928-06-09
Abstract: 317,572. Moore, J. W., Lamble, A., and Imperial Chemical Industries, Ltd. June 9, 1928. Calcium hypochlorite.-The manufacture and drying of bleaching-powder are combined in one operation by utilizing the heat evolved in the reaction between chlorine and lime for drying the powder, while mechanically agitating the materials. Preferably, a large volume of dilute chlorine is circulated through the apparatus during manufacture, the temperature rising to about 60 C., and the moisture being removed from the effluent gas, e.g. by cooling or drying with sulphuric acid, before re-circulation, strong chlorine being added if necessary. Suitable apparatus is described in Specification 113,457, consisting of a long inclined cylinder, suitably rotated. A slight suction is maintained to withdraw the hot exit gases through a series of atmospheric coolers, supplemented, if necessary, by brine coolers. The inlet gas may also be heated to assist the drying operation. Specifications 1214/93, 25023/93, 242,805, and 246,000 also are referred to.
Patent GB-349314-A (GB)
Title: Improvements in sighting apparatus
IPC: F41G1/473
Filed: 1930-05-30
Abstract: 349,314. Sighting-apparatus. PARKER & CO., Ltd., A. G., Whittall Street, Birmingham.-(Gerlich, H. E. G. T. ; 71I, Duppelstrasse, Kiel, Germany.) May 30, 1930, No. 16773. [Class 97 (i).] Sighting apparatus, e.g. telescopic sights, aiming devices, torpedo-tube sights, &c., are provided with a finder 1 constituted by a coloured and transparent area-finder contrastingly defined to the remainder of the field of vision in place of the usual etched or ruled lines. The particular form of the finder may be modified to suit the target, which is viewed through the coloured area. Auxiliary markings of the same or different colour may be provided.
Patent GB-1269084-A (GB)
Title: Pneumatically-operated burner control system
Inventor: SCOTT DOUGLAS REX ST JOHN
IPC: G05D23/275
Filed: 1969-03-31
Abstract: 1,269,084. Controlling burners by pneumatic logic-circuits. ROBERTSHAW CONTROLS CO. 31 March, 1969 [1 April, 1968], No. 16786/69. Heading F4T. A system for controlling the flow of fuel to a burner 12 comprises a valve 36, 37 operated by a first pneumatic actuator 38 adapted to be connected to a vacuum pump 19 only after a further pneumatic actuator 52 has been connected to the pump 19 to bring an ignition coil 44 to an ignition-temperature . Clothes drying apparatus is described in which a motor 15 operates the pump 19 and is adapted to be connected to terminals L 1 , L 2  when a timer switch 34 and a door-switch 22, are closed, a further switch 20 in the motor-circuit being normally closed. The pump 19 is connected to a valve 68, 71 operated by a bimetal strip 67 responsive to the temperature generated by the burner 12, the valve 68, 71 being connected to a further valve 60, 63 operated by a bimetal strip 59 responsive to the temperature of the ignition coil 44. The further valve 60, 63 is operative to connect the pump 19 to the further pneumatic actuator 52 to close a switch 49 and thus connect the ignition coil 44 across the terminals L 1 , L 2 . A conduit 72 connects the valve 68, 71 to a logic memory unit 74, and to a logic not unit 77. The further valve 60- 63 is also connected to the memory unit 74 and the not unit 77. A logic and unit 105 is connected to the first pneumatic actuator 38 by a conduit 110, to the not unit 77 by a conduit 107, and to the memory unit 74 by a conduit 103. At the start of operation, the valves 68, 71 and 60, 63 are open and vacuum is thus applied to the memory unit 74 and to the not unit 77, actuation of these units causing the and unit 105 to connect the first actuator 38 to atmosphere via the conduit 107, the not unit 77, and a bleed 117 therefrom. At the same time the further actuator 52 operates the ignition coil 44 which, upon reaching an ignition temperature, causes the valve 60, 63 to close, a check valve 75 maintaining the vacuum in the memory unit 74. Closure of the valve 60, 63 also de-activates the not unit 77 which then connects the conduit 107 (and hence the actuator 38) via the conduit 72 to the pump 19 to open the fuel valve 36, 37. The coil 44 is deactivated on closure of the valve 60, 63 but then valve is maintained open by the heat of the ignited burner 12. An accumulator 94 is connected to the pump 19 each time the further actuator 52 is so connected, and is, after a number of ignition attempts, operative to open the switch 30 and deactivate the entire system. Details of the operation and structure of the memory unit 74, the not unit 77, and the and unit 105 are given (Fig. 2).
Patent GB-1509741-A (GB)
Title: Heat exchanger and method for cooling hot gases
IPC: F28D7/02
Filed: 1975-04-23
Abstract: 1509741 Heat exchanger for cooling hot gases; steam generation SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 23 April 1975 [25 April 1974] 16820/75 Headings F4A and F4S A heat exchanger for cooling hot gases (e.g. wherein the hot gases result from partial combustion of hydrocarbon, the coolant is water, and steam is generated) comprises a gas supply space 1 (Fig. 1), and a cooling space 2 separated by a plate 11. Gas to be cooled passes through line 7, space 1, gas pipes 12 (Fig. 2), cooling pipes 13 (Fig. 1, where only one is indicated in full), and gas discharge lines 8. Coolant is supplied through line 9 which discharges within a tube 18 mounted above the separating plate 11. The coolant flows through the cooling space and leaves through a discharge line 10. The gas pipes 12 have cooling jackets 15 (Fig. 2). Some of the coolant is supplied through lines 17 and passes through the jackets 15 into the cooling space 2. Within each jacket, coolant passes down and around a tubular partition 20 in a lower section of the jacket. The inner diameters of each jacket at its lower, intermediate and upper sections become successively smaller. The gas supply space 1 is lined with refractory material 6. The lower part of the plate 11 may be insulated with an asbestos fibre or mineral wool blanket or a layer of ceramic material. An additional cooler (not shown) with coolant supply and discharge lines may surround the cooling jackets 15. Numerical values are given for sizes of parts of the heat exchanger, conductivity of refractory material, gas temperature and pressure, coolant water temperature and pressure, and steam pressure.
Patent GB-830602-A (GB)
Title: Improvements in or relating to the joining of building panels used in the construction of internal walls, ceilings and the like
Inventor: RUDDICK JOHN JOSEPH
IPC: E04F19/06
Filed: 1955-06-10
Abstract: 830,602. Walls and ceilings. BRITISH PLASTER BOARD (MANUFACTURING) Ltd. July 10, 1956 [June 10, 1955], No. 16826/55. Class 20(4) In an internal wall or ceiling construction in which building panels 16, 17 are assembled in alignment with one another, the joints between adjacent panels are concealed by the use of paper strips 10 which taper in thickness transversely in both directions to a feather edge at each edge of the strip and which have substantially the same surface characteristics as the panels so that on painting the panels and strips, the appearance of both is similar. There may be a central constant thickness portion to each strip 10 or this may be omitted. The feather edges of the strips 10 may be deckled.
Patent GB-553712-A (GB)
Title: Improvements in and connected with gas producers
IPC: C10J3/30
Filed: 1941-12-31
Abstract: 553,712. Gas-producers. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd., and SCHIELDROP, B. H. Dec. 31, 1941, No. 16852. [Class 51 (ii)] Fuel fed to the top of a gas producer through an opening 4 falls on to a conical deflector 10 arranged in the free space at the top of the producer and is deflected towards the sides to form a fuel bed having a top surface of inverted conical shape. The deflector 10 is adjustably supported in a tubular casing 5 having a gas offtake 21 and a lateral feed passage 12 provided with an inclined hinged flap 20. Fuel is fed to the passage 12 from a hopper 11 by a reciprocating plunger 14 operated by a lever 16 actuated manually or by power. The stroke of the plunger may be varied by adjusting the position of the fulcrum of the lever 16. Specification 546,482 is referred to.
Patent GB-233927-A (GB)
Title: Improvements in golf tees
IPC: A63B57/00
Filed: 1924-07-14
Abstract: 233,927. Rolfe, C. A. July 14, 1924. Tees.-A golf tee comprises a flattened tube of paper or other material provided with creases for enabling it readily to be opened out into tubular form, so as to support a golf ball or the like on its upper edge. As shown, a flattened tube 10 is provided with creases 11, 12 so that it opens out into a tube of square cross-section, Fig. 3. The tube 10 is divided by rows of perforations 13 into a number of tees, alternative rows of perforations being provided to give a choice of height for the tee. A number of tubes 10 may be bound between the leaves of a score book.
Patent GB-1166418-A (GB)
Title: Improvements in and relating to Electric Level Sensing Devices
Inventor: OLLIER RENE
IPC: H01C1/14
Filed: 1968-04-09
Abstract: 1,166,418. Measuring liquid level electrically. ETABS, ED. JAEGER S.A. April 9, 1968 [May 10, 1967], No.17052/68. Heading G1N. [Also in Division H1] The level of liquid in a container is sensed by a float coupled to the slider 18 Fig.1 of a variable resistance, so that the resistance between one end of the element 15 and the slider 18 is indicative of the liquid level. The wire element 15 is wound on a shaped former and located in a molded casing 5 by lugs 20. The ends are contacted by terminal strips 8, 1 which are located in recesses 9, 2 of the case 5 by lugs and projections forming elastic catches for the strips. The slider 18 carries contact finger 21 Fig. 9 for the resistance element 15, an additional contact finger 22 which contacts terminal strip 1 at an alarm level, and a part 23 with a recessed portion 31 for attachment to an extension 33 of a float, with sufficient play to absorb minor movements of the liquid level. The slider 18 is spring-loaded centrally against a cover which is earthed.
Patent GB-630200-A (GB)
Title: Improvements in and relating to radio signalling systems
IPC: H04B3/23
Filed: 1946-06-05
Abstract: 630,200. Radio receiving systems. GENERAL ELECTRIC CO., Ltd., ESPLEY, D. C., and EDWARDS, G. W. June 5, 1946, No. 17089. [Class 40 (v)] A radio signalling system comprises a receiver equipment with delay means for neutralizing the spurious echoes of the desired signal and a transmitter at which small adjustments to the carrier frequency may be made so as to keep the desired and echo signals always in 'phase at the receiver and thus facilitate effective neutralization of the echo signals under all phase conditions. Fig. 6 shows a set of phase conditions wherein the echoes E, C are in phase opposition to the desired signals P, A with the result that the echo E is positive when no carrier is present and echo C is negative when the main carrier B overlaps the echo. To ensure neutralization of the echoes even under these conditions, pro. vision is made at the transmitter for adjusting the carrier frequency so that equality of phase between the carrier oscillations of the desired and echo signals may be established.
Patent GB-141972-A (GB)
Title: Improvements in sighting gear for guns
IPC: F41G1/393
Filed: 1919-07-08
Abstract: 141,972. Armstrong, Whitworth, & Co., Sir W. G., Lee, H. W., and Morrison, R. July 8, 1919. Sights.-Relates to cam-elevated sights for highangle-fire guns, and consists in mounting the sight on an arm of which one end is pivoted to the trunnion axis, while the other end rests upon a cam rotatable about a shaft adapted.to move in an arc round the trunnion axis. In the form illustrated, the sight 5 is carried on an arm 4 pivoted at 3 to a bracket 1 rigid with the gun trunnion 2. The arm 4 carries guides 6, concentric with the trunnions 2, for a slider 7 in which is journaled a shaft 8 carrying a range dial 9, a pinon 10 meshing with a rack 11 on the bracket 1, a worm-wheel rotated by a worm 13 operated by a hand-wheel 14, and two cams 15 co-operating with rollers 16 mounted on a spindle 17 journaled in the guides 6. On turning the wheel 14, the shaft 8 is rotated, and with it the cams 15, thereby elevaing the sight-arm 4 with respect to the slider 7; and simultaneously the pinion 10 moves over the rack 11, elevating the slider 7. The resultant elevation of the sight-arm 4 is thus the algebraical sum of the elevation due to the rotation of the cams, and that due to their translation with the slider 7. If the weight of the sight-arm 4 and sight 5 is insufficient to keep the rollers 16 on the cams 15, a spring may be added.
Patent GB-1013257-A (GB)
Title: Improvements in or relating to annealing
Inventor: WILLIAMS ERNEST WYNNE
IPC: C21D1/18
Filed: 1963-05-01
Abstract: Low carbon steel in elongated form is quenched from the annealing temperature and before quench-ageing is complete is rolled and is then strain-aged until a stable product is obtained. If desired a further rolling and strain-ageing step may follow. The process may be carried out continuously, and may be associated with a galvanizing or tin-plating line, strain-ageing being effected in the former case by the galvanizing step, and in the latter by a flow-brightening or a lacquering treatment. Annealing may be carried out at 680-880  DEG C. and the ageing treatments at 100-200  DEG C. Heating may be by molten salt bath, and quenching may be into water, oil or molten lead-bismuth alloy.
Patent GB-238169-A (GB)
Title: Improvements in electric motors
IPC: H02K17/16
Filed: 1924-03-05
Abstract: 238,169. Lancashire Dynamo & Motor Co., Ltd., McLeod, R. S., Mason, G. E., and Stansfield, W. March 5, 1924. Conductors; cores.-In electric motors having squirrel-cage rotors, the rotor bars or the slots are so arranged that there is a clearance space between the bars and the slot walls for the greater part of their length, and the portions in contact are arranged at different distances from the ends in the several bars so that currents are prevented from flowing through the rotor laminµ between the conductors. Fig. 1 shows the use of circular conductors having portions d<3> of reduced diameter not in contact with the slot walls. If the left-hand ends of the conductors are joined by high-resistance connectors and the right-hand ends by low-resistance connectors, the reduced portions d<3> must be carried beyond the end of the rotor core. In a modification, bars of uniform cross-section may be employed in conjunction with slots of different widths. Specification 236,609 is referred to.
Patent GB-481650-A (GB)
Title: Improvements in or relating to vaporizing apparatus
IPC: A61M15/00
Filed: 1937-06-22
Abstract: 481,650. Vaporizing and fumigating apparatus. NOWAK, J. J. June 22, 1937, No. 17326. [Class 81 (i)] [Also in Group XI] A vaporizing-apparatus comprises a source of vapour supply communicating with a distributer consisting of a casing, having a heater mounted at the bottom, a fan at the top, a discharge outlet near the fan and a baffle with a central aperture below and adjacent to the fan. A casing 9, mounted on a base 8, is provided with a heating lamp 14, and a fan 20 driven by a motor 18 to withdraw vapour from a generator 30 or other source and discharge it through an outlet 21 and nozzle 23, a centrally apertured baffle 24 being mounted below the fan. The generator 30 has a squared socket 34 to receive a medicated candle 35, a screen 36 being provided to trap embers from the candle. Connections from the casing 9 to this generator and to other sources of vapour are provided at 26, 27. In a modification, vapour is provided by a generator 37, Fig. 5, having therein a vessel 43 to contain a material for vaporization by a heating coil 47.
Patent GB-364506-A (GB)
Title: Regulating device for the supply of flushing liquid to centrifuges
IPC: B04B1/12
Filed: 1931-06-15
Abstract: 364,506. Centrifugal s e p a r a t o r s. AKTIEBOLAGET SEPARATOR, 8, Fleminggatan, Stockholm. June 15, 1931, No. 17346. Convention date, June 21, 1930. [Class 23.] A centrifugal separator which continuously discharges solids or slime from peripheral outlets 11, 16 in the bowl with the aid of an auxiliary liquid supplied through the pipe 14, is associated with the apparatus shown in Fig. 2 which controls the supply of liquids. A three-armed lever 20 is supported on the pivot 21 and one arm carries the container 17 supplied by the pipe 22 with liquid to be treated. An outlet 18 with a cock 19 permits the liquid to pass to the pipe 1 of the separator. The second arm of the lever supports a similar container 25 for the auxiliary or flushing liquid which can pass to the pipe 14. The flushing liquid is supplied by a pipe 26 with a throttle valve 27 operated by the third arm of the lever through a link 28. If the liquid to be treated is supplied too fast compared with the flushing liquid the container 17 drops and the link 28 operates the valve 27 to pass more flushing liquid until the correct balance is restored. If the flushing liquid is supplied in excess some will pass through the openings 11 into the separator, and if an insufficient quantity is supplied some of the separated liquid will be discharged with the solids through the openings 16.
Patent GB-165662-A (GB)
Title: Improvements in and relating to solid tyres
IPC: B60C7/22
Filed: 1920-06-25
Abstract: 165,662. Pratt, W. B. June 25, 1920. Non-metallic elastic bodies and cores; tyre attachments to rims.-To increase adhesion (on vulcanization) between a solid rubber tyre and a metal foundation band 10, the latter is coated with a layer 13 of non-colloidal sulphur-terpene compound such as described in Specification 169,513, [Class 2 (iii), Dyes &c.], The tyre body may be built up of alternate layers of fabric 14 treated with such compound, and rubber 15; or wire having a covering of such treated fabric may constitute the innermost layer of the tyre. In a modification, the fabric layers are replaced wholly or in part by windings of rope or cord treated with the sulphur-terpene compound.