baber/WOPTO huggingface dataset:
Patent GB-832848-A (GB)
Title: Improvements relating to snap-action devices and electric switches incorporating such devices
Inventor: WILSON DAVID ALEXANDER
IPC: H01H21/42
Filed: 1957-09-30
Abstract: 832,848. Snap-action spring mechanisms. BURGESS PRODUCTS CO. Ltd. Aug. 20, 1958 [Sept. 30, 1957], No. 30554/57. Class 108(3) [Also in Group XXXVII] A snap-action switch comprises a rigid metal lever 32 having two legs pivoted in grooves 23 to enable the contacts 36 to move between fixed contacts 37, 38, connected respectively to terminals 15, 18. A third terminal 14 is integral with a unitary element, formed from a metal blank (Fig. 5) by bending along the lines a-a, b-b, c-c, to provide the grooved members 22 and the notched arm 24. A tension spring 26, anchored between the latter and the lever 32, lies between the legs of lever 32 and the members 22. The tongue 27 supports the bearing of an insulating cam 40, which turns with a spindle 39 on rotation of a boss 41, to deflect the spring 26 and thus move the lever 32, the lever and spring returning to normal when the operating force is removed. In a modification (Fig. 6) the cam bears on a wire 47, to which one end 50 of a tension spring 46 is attached.
Patent GB-266817-A (GB)
Title: Improvements in or relating to heating and cooling devices for buildings
IPC: F28D1/02
Filed: 1925-12-04
Abstract: 266,817. Barker, A. H Dec. 4, 1925. Radiators; cooling buildings. - A radiator is provided with a substantially flat radiating surface with relatively few heating passages, and an enclosed space behind it to prevent circulation of air. The heat-radiating plate A is provided with passages a for the heating medium, and with an enclosed space B bounded by a heatreflector C at the back. The plate A may have a marginal flange a<1> and lugs a<2> to receive screws c. The plate A may also carry brackets to support the radiator. A large radiator may be built up in several sections the passages in which are connected together by hollow screwed plugs. Instead of a reflecting plate C a non-conducting sheet of felt may be used.
Patent GB-509108-A (GB)
Title: Improvements in and relating to photographic exposure meters
IPC: G01J1/42
Filed: 1938-10-24
Abstract: 509,108. Exposure meters. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 24, 1938, No. 30687. Convention date, Oct. 23, 1937. [Class 98 (i)] [Also in Group XL] A photo - electric exposure meter 1 has a sliding cover 8, with an opening 9 in the front which, when extended, forms a hood for the light sensitive element, and when closed forms a cover for the scale of the meter. The cover may also carry scales for calculating exposure, and a hinged door 15, for the opening 9, having slits 16 therein. The cover and case are provided with stops to hold the cover in an open or closed position. Specification 439,774, [Group XL], is referred to.
Patent GB-179964-A (GB)
Title: Improvements in retorts for the distillation of oil-bearing shales or other like materials
IPC: C10J3/34
Filed: 1921-07-29
Abstract: 179,964. Black, J. S. July 29, 1921. Charging and discharging.-A vertical retort for the distillation of oil-bearing shales is discharged by an oscillating member H having fins H<3> both above and below its axis, the lower fins having a working clearance above an horizontal table B<4>. The retorts are built in groups of four leading to a common discharge hopper G, and each retort is fitted at its upper end with a storage hopper capable of holding, say, an 18-hours' supply. The upper parts of the retorts are made of metal, and the lower parts of firebrick. To provide for the selective withdrawal of the gaseous products of distillation discharge pipes are fitted at various levels of the retorts.
Patent GB-244274-A (GB)
Title: Improvement in oil pump for combustion engine
IPC: F02M59/02
Filed: 1924-12-22
Abstract: 244,274. Marks, E. C. R., (Ingersoll.Rand Co.). Dec. 22, 1924. Eccentric-actuated pumps; mountings, regulating delivery by by-passes and by opening suction valves; valve, gear; valves, arrangement of.-In a fuel pump comprising inlet valve c, outlet valve V, and a by-pass valve Y, the valve c is arranged to be kept open for a variable portion of the delivery stroke, and the duration of the injection may be varied by opening the by-pass valve Y. The valve c is opened by the plunger Z by means of a hook 10 engaging a hook 11 on the valve, and the period of opening may be adjusted by means of a member 2 and a nut 3 engaging a threaded portion of the plunger. The valve . Y may be operated by a lever 25 rocked on an adjustable fulcrum 28 by an eccentric rod 20. The fulcrum may be adjustable by hand or governor, and the length of the rod 22, 24 connecting the lever 25 to the eccentric rod may be adjusted by means of screws 46. The pump is mounted on a frame L by means of bolts O. The plunger is driven by an eccentric f and tappet z and an intermediate adjusting member 2. Specifications 121,470 and 244,273, [Class 7 (vi), Internal-combustion engines, Valves &c. for], are referred to.
Patent GB-536825-A (GB)
Title: Improvements in rubber compounding
IPC: C08K5/16
Filed: 1939-11-25
Abstract: 536,825. Hydrocarbon derivatives used as rubber accelerators, plasticizers, or wetting agents &c. VALKENBURGH, E. A., VAN. Nov. 25, 1939, No. 30809. Convention date, Nov. 26, 1938. [Classes 2 (iii) and 15 (ii)] [Also in Group V] Amino substances, e.g. anhydrous or aqueous ammonia, aliphate or aromatic mono- or polyamines, primary, secondary, tertiary, or mixed amines, are reacted with a composite partial oxidation mixture of petroleum hydrocarbons, e.g. obtained from asphalt base petroleum or paraffin base petroleum, oxidized with air, oxygen &c. using manganese oleate as a catalyst, to give carboxylic acids, alcohols, esters, lactones, aldehydes, ketones &c. the reaction mixture containing substantial amounts of amino-neutralization and aminocondensation constituents &c. and non-aminoreactive oxidation constituents. The reaction mixtures are added to natural or synthetic rubber, balata, gutta-percha. polymers, isomers, or derivatives of rubber, rubber latex, reclaim rubber, or mineral rubber &c. and the composition vulcanized. Other compounding ingredients may be used, e.g. stearic acid, pigments such as zinc oxide for which the reaction mixtures, which may include unchanged residual hydrocarbons, act as wetting agents, they also act as plasticizers, accelerators, age-resistors &c. and give improved mechanical properties to vulcanized rubber, or they act as stabilizers for latex or other dispersions in water or oil, or as dispersing, wetting or penetrating agents, e.g. facilitating impregnation of textile fabrics with rubber latex, or as detergents or foaming agents, or as agents for controlling the consistency of oil-well drilling fluids.
Patent GB-226032-A (GB)
Title: Improvements in or relating to bituminous emulsions
IPC: C08L95/00
Filed: 1923-12-08
Abstract: 226,032. Montgomerie, J. A. Dec. 8, 1923. Emulsions, making. -Emulsions of mineral pitch or asphalt, for use in road making, coating structures &c., and in the manufacture of fuel briquettes, are prepared by admixing directly while stirring the melted bitumen and a hot dilute aqueous caustic alkali solution. The bitumen is preferably poured into the hot alkali. In an example, Mexican asphalt and caustic potash are employed. A small percentage of soap may be added to the emulsions when prepared.
Patent GB-1211248-A (GB)
Title: A pulley with a variable radius of curvature for flexible line, particularly for flexible drill pipe
Inventor: REYNARD REMI
IPC: E21B19/22
Filed: 1968-06-28
Abstract: 1,211,248. Pulleys. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 28 June, 1968 [29 June, 1967], No. 30995/68. Heading F2Q. A flexible drill pipe gripping pulley 4-6 has a profile the radius of curvature of which progressively decreases from the inlet to the outlet of the pulley such that the pulley profile effectively radially reduces to correspond to (i.e. match) the contraction of the flexible drill pipe as the load thereon (i.e. its own suspended weight) decreases as it is wound over the pulley from the inlet to the outlet thereof whereby movement of the contracting pipe relative to the pulley is eliminated and the resulting wear avoided. The pulley comprises two flanges 4, 5 integrally connected at 25, 26 and freely mounted on a shaft 15, and has toothed rims 23, 24 meshing pinions 22, 21 driven by hydraulic motors 17, 16 through reduction gears 20, 19, the pulley flanges carrying a number of rim sections 6 secured to radial support members 27 which at their lower ends bear through rollers 28 on a cam 29 the profile of which decreases progressively from the inlet to the outlet of the pulley between two values R 1  and R 2  respectively. The angular position of the cam 27 may be fixed or may be adjustable with respect to a support frame by means of a crank-rod system 35, 36 actuated by an hydraulic jack 37, the adjustment being effected either stepwise as the drill pipe 2 is wound up or unreeled, or continuously adjusted as a function of the load on the pipe at the pulley inlet. Each pulley rim section 6 includes three gripping shoes 7, 8 and 9 each embracing a circular section of the drill pipe cross-section and having an elastomeric coating on its pipe contacting surface. The centre shoe 7 is integral with its rim section 6, the other two shoes 8, 9 being diametrically arranged laterally each side of the pipe and formed respectively integrally with a half-jaw 10 and piston-rod of a reversible hydraulic jack the cylinder 13 of which is secured to the half-jaw 10 which is movable parallel to the pulley axis along two slots 11, 12 in the rim section 6. The drill pipe is thus hydraulically clamped by the lateral shoes 8, 9 with equal pressures all along the section of pipe sheared over the pulley to counteract the effect of compression of the pipe against the bottom of the pulley rim and provide a more regular distribution of pressure against the bottom shoes 7, the hydraulic fluid for the jacks 13 being supplied via hoses 38a, 38b connected by pairs of pipes 38 from a rim 39 providing a rotary connection for fluid distribution from the shaft 15.
Patent GB-1481009-A (GB)
Title: Digital data transmission systems and apparatus therefore
IPC: H04L25/49
Filed: 1974-09-27
Abstract: 1481009 Data transmission; D.C. suppression GENERAL ELECTRIC CO Ltd 27 Sept 1974 [29 June 1973] 30996/73 Addition to 1481008 Heading H4P In an arrangement to reduce disparity in a system as described in the parent Specification in which n bit input binary words are converted into n - 1 digit ternary words and a control circuit 14 is provided to switch input words to their complements and invert ternary words simultaneously in accordance with cumulative disparity and part but not all of the binary word, two digits of the binary word are used as criteria with the proviso that word "0000" is translated selectively as ternary word "00+" (or "+00") or the inverse of these values. In the modification n = 4 and the first two digits of each binary word are used as the criteria, a table (not shown) being provided in the Specification giving four sub-ternary codes for each 4 bit word. Any other pair of binary digits may be used for the appropriate adjustment of the table. Preferably the ternary words for "0000" and "1111" are not changed so as to enable word misalignment to be rapidly detected. As in the parent Specification output signals from unit 4 may be used for the criteria.
Patent GB-245431-A (GB)
Title: Improvements in turbine locomotives
IPC: F01K15/02
Filed: 1925-12-09
Abstract: 245,431. Krupp Akt.-Ges., F. Dec. 31, 1924, [Convention date]. Railway locomotives, steam-turbine.-The main driving turbines are supplied with highpressure steam while the auxiliary turbines for driving pumps &c. are supplied with low-pressure steam. In the construction shown a highpressure boiler A supplies steam to the main turbines B<1>, B<2>, and a low-pressure boiler D supplies the steam for the auxiliary turbines E, F. The exhaust steam from the main turbines goes to a condenser C and the condensate is fed back to the boiler A by a pump G and passes through heaters K, M formed by the exhaust steam receivers of the auxiliary turbines. The condensate from these heaters is fed back to the boiler D by a pump N. A heating coil P in the low-pressure boiler is fed from the high-pressure boiler and the steam therefrom passes through a separator Q to the condenser C. Steam may be supplied from the low-pressure boiler through a pipe for train-heating. The condenser C may receive the exhaust steam from both sets of turbines. The Specification as open to inspection under Sect. 91 (3) (a) describes also modifications in which the low-pressure boiler is dispensed with, steam being supplied to the auxiliary turbines either (a) from the exhaust side of the highpressure main turbine, or (b) through a reducing valve from the high-pressure boiler. This subject-matter does not appear in the Specification as accepted.
Patent GB-1155464-A (GB)
Title: Reciprocating Mower having Transversely Displaced Cutting Means
IPC: A01D34/13
Filed: 1966-07-12
Abstract: 1,155,464. Mowing machine. INTERNATIONAL HARVESTER CO. 12 July, 1966 [21 July, 1965], No. 31156/66. Heading A1F. A reciprocating mower is provided with knife section guards 11 having finger and lip portions 16, 23 respectively with surfaces 22, 24 thereof each provided with cutting edges. Cutter bar knife sections 31, mounted for movement between said surfaces, have cutting edges 33, 34 on one face and are positioned in alternately inverted relation so that one knife section cuttingly engages a surface 22 and an adjacent knife section cuttingly engages a surface 24. Hold down members 13 may also be provided.
Patent GB-838662-A (GB)
Title: Method and vehicle for cleaning roads
Inventor: BREITHER KARL
IPC: E01H1/08
Filed: 1957-10-04
Abstract: 838,662. Road cleaning machines. FAHRZEUGBAU HALLER G.m.b.H. Oct. 4, 1957. No. 31190/57. Class 107 Roads are cleaned by means of a motor vehicle from which liquid is continuously sprayed on to the surface of roads in front of a washing device and in such quantity that muddy liquid is produced with the road dirt and is moved laterally across the surface of the road by the washing device and is conveyed back into the vehicle by suction. As shown in Fig. 1 fresh water from compartment 14 of the diagonally divided tank 12 of the road vehicle is sprayed by nozzles 19 and the muddy liquid is swept by the diagonally arranged rotary washing device 18 towards the inlet 20 of suction pipe 21, suction being generated by pump 22, which raises it to the second compartment 15 of the tank 12. The liquid separates in this compartment into a layer of sludge 29 and a layer of muddy water 30, the former being removed as desired through a trap door 23 extending across the width of the tank, and the latter being removed by pumping through pipes 27 and 28, the level of the inlet of pipe 27 being adjusted by lever 26. The muddy water may, if desired, be returned to the spray 19 after purification, e.g. by filters. Diagonal division of the tank ensures that centre of gravity S1 of the tank, when compartment, 14 is full and compartment 15 empty, is separated by not more than “ of the length of the tank from the centre of gravity S2 when compartment 14 is empty and compartment 15 is full.
Patent GB-767624-A (GB)
Title: Improvements in or relating to the optical projection of transparencies
IPC: G03B23/10
Filed: 1954-10-28
Abstract: 767,624. Optical slide projectors. NUGENT, P. Oct. 28. 1954, No. 31211/54. Classes 97(1) and 98(2) Slides for optical projection are mounted over a series of holes equidistant from the centre of a rotatable disc which is located in a position to project a selected slide by a spring detent co-operating with the spaces between adjacent slides. As shown, slides 15 are secured to a disc 10 rotatable on a hub 11 carried by a plate 17, the disc being retained by an eccentrically mounted washer 12. The plate 17, a plate 18 and a spacing plate 20 are all secured to tubes 33 which may be supported on the rods 30, forming part of a standard projector, to which they may be clamped by screws 28. The plates 17 and 18 have aligned apertures to pass the projection beam. The plate 18 carries spring fingers 19 with rollers 25 at their, ends to guide the disc and locate the selected slide. The plate 17 has an aperture 31 through which may be read descriptive matter on the disc corresponding to the slide being projected. As shown the slides are formed of transparencies in cardboard mounts secured by staples 16. Clips or holders for the slides may be provided on the disc.
Patent GB-484924-A (GB)
Title: Improvements in package tying machines
IPC: B65B27/08
Filed: 1936-11-16
Abstract: 484,924. Bundling-machines. HUNT, F. T. Nov. 16, 1936, No. 31212. [Class 94 (i)] Apparatus for tying bundles of tickets together comprises slides B, C for compressing and holding the tickets T during the application of twine by an arm L<3>. The slide B is adjustable by a screw B<2> to any fixed position, and the slide C is moved forward by a cam D against the action of a spring. The finished bundles are led away by a delivery belt F. The twine applying mechanism L is disposed in inverted position in a casing K and the arm L<3> lays the twine in a horizontal plane just above the slides, which are of such a height that half the bundle is exposed above them. The knotting mechanism may be of any known construction. The movements of the parts are co-ordinated so that the band F is stationary when the bundle T is placed on it between the slides, the slide C is moved in to compress it, and the twine is carried twice round the bundle and knotted. The slide C recedes and the band F is started to carry away the bundle and stopped in readiness for the next cycle.
Patent GB-1482112-A (GB)
Title: Electromechanical filter with flexurally vibrating resonators
IPC: H03H9/50
Filed: 1974-07-15
Abstract: 1482112 Electromechanical filters TELET. TRA-LABORATORI DI TELEFONIA ELETTRONICA & RADIO SpA 15 July 1974 [3 Aug 1973] 31216/74 Heading H3U An electromechanical filter comprises a plurality of flexural resonators arranged on both sides of a main coupling wire 1 to which they are all attached, one pair of resonators on one side of wire 1 being additionally coupled by means of a further wire FA which bridges one or more resonators on the other side of wire 1. To provide an attenuation peak at each side of the filter pass-band the wire F.A. may carry one or more weights p1, p2. Resonators 6, 15, 12, 13, 16 and 6<SP>1</SP> on one side of wire 1 are supported at nodal points by wires 2, 3; resonators 17, 10, 11, 18 are similarly supported by wires 4, 5.
Patent GB-208540-A (GB)
Title: Improvements to systems of pneumatic manipulation of liquids protected from surrounding air
IPC: B67D7/16
Filed: 1923-12-12
Abstract: 208,540. MauclÞre, P. A. P. V. Dec. 14, 1922, [Convention date]. Addition to 173,778. Direct air-pressure apparatus, automatic and non - automatic; valves for pressure fluid, actuation and arrangement of; valves for liquid, arrangement of.-In liquid-forcing apparatus of the kind described in the parent Specification, in which the chambers 2<a>, 2<b> are alternatively filled and discharged, each chamber is connected to a suction pipe 5 during filling and to a compressed-air pipe 4 during discharge, by means of a handoperated rotary valve 78. When the chamber is filled, a floatoperated valve 50 cuts off the chamber from the suction connection, and the valve 78 is then turned to connect the air pipe 4 to the chamber. At the end of the discharge, a float-controlled valve 71<a> or 71<b> closes the liquid port at the bottom of the chamber. The liquid enters the chambers through a pipe 3 and valves 56<a>, 56<b>, and is discharged through pipes 59<a>, 59<b> and valves 57<a>, 57<b> to the delivery pipe 27, which may have a stop valve 27a and an anti-drip valve 79. Several pains of chambers may be connected to a common system of liquid and air pipes. Specification 204,725 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the statement that the valve 78 may be operated automatically. This subject-matter does not appear in the Specification as accepted.
Patent GB-639281-A (GB)
Title: Improvements in or relating to pressure measuring apparatus
Inventor: FAIRBROTHER JACK ALFRED VIVEAS
IPC: G01L11/00
Filed: 1947-11-26
Abstract: 639,281. Vacuum gauges. MINISTER OF SUPPLY. Nov. 26, 1947, No. 31316. [Class 106 (ii)] A vacuum gauge 3 for a low-pressure system 1 comprises a vacuum pump 4, whose inlet is connected to the system, shunted by a flow resistance or throttle 6, which may be adjustable, and a differential pressure indicator, e.g. an oil-containing U-tube 9 or a bellows. As shown, the system 1 is continuously evacuated and connected by an apertured disc 10 to a diffusion pump 4 such that the pressure difference built up across the resistance 6 can be detected by the U-tube or other indicator which is insensitive to the system pressure.
Patent GB-336436-A (GB)
Title: Improvements in or relating to calendars and charts
IPC: G09D3/08
Filed: 1929-10-15
Abstract: 336,436. Harvey, E. O. Oct. 15, 1929. Date indicators. - A combined calendar and indicator board comprises a suitably printed sheet or chart of circular or other shape having an opening through which are exposed the date indications on a rotatable disc, the disc having a front member connected for movement therewith and adapted to carry one or more radial pointers or indicators. As shown applied for use with a shipping service the chart 11, Fig. 1, has indications relating to the ports of call for homeward and outward bound ships arranged in radial spaces 19 each indicating a period of one day. Other spaces such as 20 - - 22 may contain information relating to the distance travelled according to schedule. Spaces 24, 25 are proportioned to correspond to the time taken to discharge and load a ship at the home and distant port. The calender information is arranged on a disc or on a set of concentric discs 12 viewable through apertures 16 - - 18 in the chart. The hub 13 of the disc extends through the chart and has secured thereto a block 14 to which can be attached radial pointers 26, 27 each bearing the name of a ship. The block may have a number of radial holes or alternatively may be made of cork or other soft material for the reception of the pointers. In a modified form the pointers may be adjustably secured to the hub directly by means of the clamping screw 15.
Patent GB-315337-A (GB)
Abstract: 315,337. Dehn, F B., (Burroughs Adding Machine Co.). April 12, 1928, Centrifugal govenors.-In a speed-governor for a small electric motor driving an accounting- machine, a centrifugal ball-race 42 rotating with the motor shaft 19 transmits movement through an axially movable platen 45 and a lever 52 to a vibratory electric switch 62, 63 acting to open and close the motor circuit. The switch is initially held open by a lever 81 which is moved away by a spring 95 coincidently with the engagement of a driving-clutch 21. Specification 18058/07, [Class 106, Registering &c.], is referred to.