baber/WOPTO huggingface dataset:
Patent GB-809287-A (GB)
Title: Improvements in or relating to installations for automatic feed-water control of forced circulation boilers
IPC: F01K9/02
Filed: 1955-07-12
Abstract: 809,287. Fluid-pressure servomotor-control systems. SIEMENS-SCHUCKERTWERKE A.G. July 12, 1955 [July 12, 1954], No. 20203/55. Class 135. In an automatic feed water control system for a forced circulation boiler comprising a feed water regulator RSp adjustable by a loadsetting device STLa and by a main temperature controller RT1 to which is fed a signal characteristic of the temperature at a first location SSp1 in the circulation system, the feed water regulator is also subject to a control signal from at least one auxiliary temperature controller such as RT2, to which is fed a signal characteristic of the temperature at a location SSp2 in the steam flow downstream from the first location, the controllers RT1, RT2 also being fed with signals characteristic of the desired temperatures at the respective locations under the prevailing load conditions. Such an arrangement minimizes time lags occurring in the regulation due to the thermal capacity of the system. As shown, two auxiliary temperature controllers RT2, RT3 are provided. Each of these are of the type giving control in accordance with the deviation and the rate of change of deviation of the variable. The controller RT1 however, operates also according to the time integral of the deviation. A signal XD representative of the load factor, in this case boiler pressure P acts on a follow-up type pressure controller RD supplying a signal YD to the load setting device STLa. The latter by means of signals WK, WL, WSp respectively adjusts the coal supply regulator RK, the air supply regulator RL, and the feed water regulator RSp. The feed water regulator is adjusted through a follow-up type controller STu which also adjusts a further relay STT by which signals representative of the desired values of the stage temperatures at the prevailing load are fed to the controllers RT1, RT2, RT3, respectively. The circulation system comprises sections SSp1, SSp2, SSp3, &c. and the temperature pick-off points T1, T2, T3 are adjacent the outlet of these sections. The main temperature regulator RT1 also adjusts the coal supply regulator RK. The feed-water regulator RSp is also subject to a signal XSN which is a measure of the temperature deviation at an auxiliary heating surface SN in parallel with the first stage whereby a rapid response of the internal temperature of the first stage is obtained.
Patent GB-1237300-A (GB)
Title: A mineral mining installation
IPC: E21F15/04
Filed: 1969-04-21
Abstract: 1,237,300. Advancing mine roof supports. GEWERKSCHAFT EISENHUTTE WESTFALIA. 21 April, 1969 [27 April, 1968], No. 20207/69. Heading E1P. An advancing mine roof support frame is provided in the stowage zone with a telescopic shield 6, 7 of which the lower part 6 is pivotally clamped to the base 1' of the pit prop and the upper part 7 is secured by a chain 12 to a bar 13 mounted on the roof bar 3'. The chain is secured to the upper part 7 by a holding device 11 having an apron 15 of rubber or spring steel. A stowage pipe 16 is secured to the bar 13 by a chain 17.
Patent GB-320399-A (GB)
Title: Improvements in or relating to axle boxes
IPC: B61F17/20
Filed: 1928-07-11
Abstract: 320,399. Peyinghaus, W. July 11, 1928. Reservoirs in axle-boxes.-An axle-box for tipping waggons has one or more oil pockets c, d projecting inwardly from the inner wall b<1> of a chamber a<1> formed on the outer end of the axlebox. When the waggon is tipped in one direction the oil collects in the pockets c, d, and when it is tipped in the opposite direction the oil collects in the upper portion h of the chamber a<1>.
Patent GB-581816-A (GB)
Title: Improvements relating to resettable counter unit
IPC: F16D41/18
Filed: 1943-12-03
Abstract: 581,816. Ratchet clutches. STEVENS, A. H. (Veeder-Root, Inc.). Dec. 3, 1943, No. 20232. [Class 80 (ii)] [Also in Group XIX] The numeral wheel A, Fig. 5, of a counting- machine has a hub 15 connected by a web 16 to a peripheral flange 17 provided with internal ratchet teeth 20. The gear member 11 has a central opening for engaging the hub and a disc portion provided with slots containing pawls 12 adapted to co-operate with the teeth 20 in the numeral wheel. A re-setting pawl 45 adapted to engage a slot in the re-setting shaft on which the wheel is mounted is located in a radial slot in the hub and a web 47 formed in the web 16. The various pawls are spring-loaded and transverse movement in the slots is prevented by a plate P assembled on the hub and abutting the gear member and the webs 16, 47 formed on the web 16. Projections 30, 48 enter grooves in the pawls 12, 45 to retain them against longitudinal withdrawal. Locking is effected by an annular flange 60, Fig. 3, on the web 16. Gear teeth 59 formed on the wheel A co-operate with the usual transfer pinion to advance the next wheel of higher order. The wheel A and a gear member may be moulded from plastic material.
Patent GB-961256-A (GB)
Title: Burners
IPC: F23D11/10
Filed: 1962-05-25
Abstract: 961,256. Liquid fuel burners. COCKERILLOUGREE S.A. May 25, 1962 [May 26, 1961; May 30, 1961; July 14, 1961], No. 20283/62. Heading F4T. A burner using liquid fuel, discharges separate jets of fuel and commercially pure oxygen, such that the jets meet at a distance of between 3 and 25 cms. from the burner. Fuel is supplied through a duct 16 and angled passage 17 to a circular or oval nozzle or nozzles 18 which are directed at an angle of 15 degrees to 20 degrees towards the oxygen jet issuing from an axial nozzle 13. The oxygen is supplied to the nozzle 13 through a duct 11 and a valve 12 which has a flexible part 12<SP>1</SP> which melts if a blow-back occurs, thereby allowing the plunger 12<SP>11</SP> to be swept up against a valve seat 22<SP>111</SP>. In another construction the fuel is supplied to an annular passage having a converging and surrounding an axial oxygen passage. The annular passage and the axial passage are provided with cooling jackets. In a further construction liquid fuel is discharged through four circular nozzles situated near the burner axis, and the oxygen is discharged through several nozzles arranged around the fuel nozzles and having their axes parallel to the burner axis.
Patent GB-1334438-A (GB)
Title: Purification of rare gas
IPC: C01B23/00
Filed: 1971-04-19
Abstract: 1334438 Purification of rare gases SIEMENS AG 19 April 1971 [28 Jan 1970] 20283/71 Heading C1A [Also in Division H1] Contaminating gases are removed from a rare gas by contacting the latter with one or more heated gettering masses produced by consolidating a powder consisting of or containing non- volatile gettering material, e.g. one or more of the metals Zr, Ta, Hf, Nb, Ti, Th and U. The gettering mass or masses may be in the form of a coating around a heater coil (the latter conventionally insulated with Al 2 O 3 ) either directly or with the interposition of the wall of a metal vessel enclosing said insulation. The coating may be produced from a sintered powder, by pressing dry, powdered material in a mould, or by applying a layer of a viscous, quick-drying paste consisting of or containing said gettering material to the surface of the insulation or the metal vessel and then sintering on the layer. The gettering mass may be given a highly porous form by the addition of up to 30% by weight of carbon powder (e.g. electrographite), uniformly mixed with the gettering material.
Patent GB-604306-A (GB)
Title: Improvements in or relating to tractor-trailer combinations
IPC: B62D53/08
Filed: 1945-08-08
Abstract: 604,306. Tractor-trailer vehicles. SOC. AUXILIAIRE DE MECANIQUE ET DE TECHNIQUE INDUSTRIELLE. Aug. 8, 1945, Nos. 20332 and 20333. Convention dates, Sept. 15, 1943, and Dec. 22, 1943. [Class 79 (iii)] [Also in Group XXXII] A tractor-trailer combination comprising a tractor with a front driving and steering axle and a rear axle, the wheels of which can be raised after connection with a two-wheeled trailer of the half-carrier type, whereby a four-wheel rigid vehicle of lorry type is obtained, is characterised by the provision on the trailer of legs or chocks which support its chassis frame to enable the tractor chassis frame to engage under that of the trailer, means being provided for lifting the trailer chassis in relation to the axis of its wheels after coupling. The compound vehicle, Figs. 1 and 2, comprises a front tractor portion having a front ramp 1 whose inclination is adjustable by a hydraulic ram 2, and a pair of chassis frame members supported by retractable wheels 10, each chassis frame member terminating at its rear end with an inclined portion. The trailer portion is supported at its rear end on a pair of road wheels whose height is adjustable by ram 17 and lever 16, and at its front end on legs or chocks (not shown). When the tractor is reversed on to the trailer, the rollers 6 at the front of the trailer ride up the ramp 1 and are automatically held by the hook 15, whilst a cross-member 8 of the trailer rides up the rear end of the tractor until it reaches stops 7 and is automatically held by hooks 9. In order to relieve the ram 17 of its load whilst travelling, the lever 16 may be provided with a hook 18, Fig. 3, which engages a frame cross-member; with this arrangement the height of the trailer road wheels is adjusted by ram 20 acting on rocker 21 and rod 19. Fig. 3 also shows a modified form of coupling in which the hooks 9 are replaced by an upwardly inclined stop 7 and a detent member 9b pivoted at 9c and having a projection 9a over which the cross-member 8 rides during the coupling operation and which springs up to the position shown under the influence of a compression spring 9d when coupling is completed. In a further modification, Fig. 9, the trailer is provided with ramps 25 and side guide plates 27 underneath its chassis frame, whilst the tractor has two flanged rollers 24 which ride up the ramps, the flanges bear on the sides of the converging ramp 25 and centre the tractor in relation to the chassis. In the further modification shown in Fig. 10, the tractor is centred on the trailer by automatic steering of the tractor rear wheels ; in this form the trailer has ramps 25 under its frame and convergent side plates 27. The rear of the tractor has rollers 24 which engage the ramp and members 26 which engage the side plates 27, and which cause axial displacement of the member 28 if the two vehicles are not in line, so moving the rear wheels 31 in the appropriate direction to centre the tractor.
Patent GB-203655-A (GB)
Abstract: 203,655. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Willis, B. D.). Sept. 11, 1922, [Convention date]. Automatic exchange systems; metering systems.-The usual counting meter M is connected in series with an electrolytic &c. meter X for recording duration and value of calls. The current through the meters is determined by a resistance the value of which depends on the ultimate exchange to which the call is directed. Where such exchange is selected by a succession of digits, the resistance is inserted by a switch S, associated with the outgoing end of the selected trunk, but where there are only ten exchanges, a resistance mav be connected to all the meter terminals of each level of the selector D. The meters are operated by causing the reply of the called subscriber to remove a short circuit from a resistance 145 inserted between the release trunk conductor 77 and ground. In response to the first digit, the selector D connects the line 38. 40 to the line relay 101 of a repeater R. Relay 101 energizes slow-acting release relay 102 which completes a circuit for slow-acting relay 105, and a holding circuit over the conductors 77 for the relays 13, 55 at the line switch C and group selector D. Line relay 101 repeats the next two digits to the distant exchange and sends corresponding impulses from its grounded armature 110 to operate the switch S which is a Strowger switch operated in the manner of a connector. Wiper 130 moves to one of the terminals 135, 136 which are grounded through characteristic resistances and relay 126 on de-energizing connects the wiper 130 to relay 106 which locks up under control of relay 102 and connects the wiper 130 to the meter conductor 79. The remaining digits of the wanted number are repeated over the lines 200, 201 and on the reply of the called subscriber, the reversal of current causes energization of electropolarized relay 104 which energizes the reversing relay 100. Relay 100 opens the circuit of relay 105 and removes the short circuit from the resistance 145, thus operating relay 42 at the selector D before relay 105 releases its armature. Relay 42 locks up over the conductor 77 and completes the meter circuit which is maintained until at the end of the connection, relay 101 releases relay 102, thereby closing a circuit for the release magnet 128 of switch S, and allowing all switches to return to normal in the usual manner.
Patent GB-911090-A (GB)
Title: Improvements in or relating to boxes of cardboard or like material
Inventor: KIRBY MICHAEL JAMES
IPC: B65D5/00
Filed: 1958-06-25
Abstract: 911,090. Cartons. REED CARTONS Ltd. Sept. 25, 1959 [June 25, 1958], No. 20380/58; Class 18.  A cardboard &c. box provided on each of two opposite sides 1, 2 with a portion 3, 4 extending inwardly at right angles thereto, has a suitably shaped portion cut from one of the portions 3, 4 of each corner of the box and into which an upwardly projecting member 17-20 is fitted. Recesses 21-24 receive upstanding portions 5-12 on a lower box. Score lines 25-30 are provided to enable the box to be collapsed. The members 17-20 may be made of wood, cardboard &c. Specifications 744,151 and 799,792 are referred to.
Patent GB-489066-A (GB)
Title: Adjustable girder clip
IPC: B66C1/64
Filed: 1937-07-24
Abstract: 489,066. Attaching loads to lifting- means. WILES, M. W. July 24, 1937, No. 20493. [Class 78 (iv)] [Also in Groups XXV and XIV] A clip for attachment to a girder for lifting, carrying, or suspending the girder or for carrying cables or pipes suspended from the girder consists of a beam a with tapered ends having opposite rack teeth b engaging the internal teeth of clamps e sliding over the ends. A boss c is provided for lifting-tackle, Fig. 1, or for use with end holes d, Fig. 2, for hooks &c. for supporting cables or pipes. The spring f forms an additional safety lock but may be dispensed with in lifting-tackle.
Patent GB-647147-A (GB)
Title: Improvements in and relating to screw propellers, in particular, to screw propellersfor aircraft
IPC: B64C11/20
Filed: 1947-07-29
Abstract: 647,147. Screw propellers. HARTZELL INDUSTRIES, Inc. July 29, 1947, No. 20514. Convention date, Nov. 5, 1945. Drawings to Specification. [Class 114] A propeller blade is made from layers of cresol formaldehyde resin in each of which is embedded a layer of fabric. This fabric is of cotton duck, the warp threads being either parallel to the blade axis or slightly inclined to this axis and to those of the neighbouring layers. The layers are moulded together by heat and pressure.
Patent GB-1328446-A (GB)
Title: Impact-resistant thermoplastic moulding materials
IPC: C08L23/02
Filed: 1971-04-19
Abstract: 1328446 Impact-resistant moulding materials BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [29 Jan 1970] 20532/71 Headings C3G and C3P An impact-resistant thermoplastic moulding material comprises a mixture of: (A) from 70 to 99% by weight based on the weight of (A) plus (B) of a homopolymer of styrene or of a copolymer of styrene with up to 60% by weight based on the weight of (A) of a styrene derivative bearing a substituent on the nucleus and/or on the vinyl side chain; and (B) from 30 to 1% by weight based on the weight of (A) plus (B) of a soft component consisting of: (1) an α- olefin polymer and (2) a substantially gel-free and uncrosslinked copolymer of a vinylaromatic compound and a diene hydrocarbon which has been prepared by a method involving anionic solution polymerization and is optionally wholly or partly hydrogenated, "Substantially gel-free and uncrosslinked" means that no more than 10% by weight of the copolymer remains as an insoluble residue when 1 part by weight of the copolymer is dissolved in 100 parts by weight of toluene. The material may be made by (1) mixing components (B1) and (B2) with less than 40% by weight of the total amount of (A) as a batch and then incorporating the mixture into the remainder of component (A) or (2) mixing a solution of component (B2) with components (A) and (B1) and removing the solvent. In the examples the compositions comprise polystyrene, polyethylene, styrene-butadiene-styrene block copolymer, mineral oil, phenolic antioxidant, styrene-butadiene block copolymer (which may be selectively hydrogenated), graft copolymer of polybutadiene and styrene, statistical copolymer of butadiene and styrene, and a terpolymer of ethylene, propylene and dicyclopentadiene. The material may be crosslinked using di-tertiary butyl peroxide and #-rays from a Van de Graaff generator.
Patent GB-959069-A (GB)
Title: Garment hanger
IPC: A47G25/24
Filed: 1962-05-29
Abstract: 959,069. Garment hangers. M. M. RUBIN, and D. G. WONG. May 29, 1962, No. 20552/62. Heading A4U. A garment hanger is provided with garment strap receiving loops 17, 37 depending from laterally extending members 13, 12 thereof, the members 13, 12 defining restricted inlets 19, 36, which are normally closed, to the loops 17, 37. Single or double loops 17, 37 of circular, elliptical or triangular shape may be provided on either or both members 13, 12. Garment straps may be engaged with a single loop 17 from an end of the hanger or alternatively from the side with a double loop 37 over the bridge 39 and thence through a pair of inlets 36.
Patent GB-1426111-A (GB)
Title: Apparatus for the electrolytic production of chlorine dioxide
IPC: A23L3/358
Filed: 1974-05-10
Abstract: 1426111 Producing chlorine dioxide electrolytically G M CONFORTO 10 May 1974 [21 May 1973] 20769/74 Heading C7B ClO 2  is produced electrolytically by feeding an aqueous solution of NaCl and NaClO 2 , e.g. from supply tank 8 via pipe 9, to a cell 1 comprising anode and cathode compartments 201, 301 separated by permeable partition 4, the electrolyte level in the cell being maintained constant e.g. by a float valve 11 connected to pipe 9 in the feed compartment 101, electrolyzing e.g. by connecting the anode 5 and cathode 6 to a rectifier 7, and collecting the anolyte formed by an aqueous solution of NaCl and ClO 2  e.g. via pipe 14. The anolyte from pipe 14 may be discharged to a separation tower 21, Fig.2 (not shown), through which air is bubbled to pass (e.g. via pipe 23) to an adsorption tower (24) through which water is fed, to separate the ClO 2  from the NaCl solution which is recycled (via pipe 27 and tank 8) back to the cell. NaOH catholyte solution may be discharged via pipe 12.
Patent GB-1274171-A (GB)
Title: Epicyclic gears
IPC: F16H3/64
Filed: 1971-04-19
Abstract: 1,274,171. Variable speed gears. SCHWEIZERISCHE LOKOMOTIVUND MASCHINENFABRIK. 19 April, 1971 [2 Feb., 1970], No. 20773/71. Heading F2D. A variable speed epicyclic gear I comprises a shaft 3 (e.g. an output shaft) surrounded by a hollow shaft 1 (e.g. input) rigidly connected to a gear 4 meshing with a planet gear 8 meshing with a ring gear 11 which can be braked (e.g. by a brake C), and a carrier 5, 7 clutchable (e.g. at E) to the shaft 1 and able to be braked (e.g. by a band brake D and an overrunning brake #) pivotally mounting the gear 8 which is rigidly connected to a coaxial gear 9 which meshes with an externally toothed gear 12. The gear 12 may drive the input of a second variable speed epicyclic gear II. The clutch E may be operated hydraulically, pneumatically or electrically.
Patent GB-713718-A (GB)
Title: Improvements in pipe bends or elbows
IPC: F16L43/00
Filed: 1952-08-19
Abstract: 713,718. Pipe bends &c. JUNKERS & CO., GES. Aug. 19, 1952 [Aug. 20, 1951], No. 20775/52. Class 99 (1). [Also in Group XIII] A bend or elbow 4 for a heat - exchanger is formed from a pipe of oval, flat-sided or other non-circular cross-section bent in the plane of the narrowest width of the pipe extending through the centre-line 5 of the pipe. The ends 6 of the bend are of cylindrical form for connection to the pipes of the exchanger.
Patent GB-381145-A (GB)
Title: Automatic propelling device for welding and cutting blowpipes
IPC: B23K37/02
Filed: 1932-07-23
Abstract: 381,145. Uniting or dividing by fusion. TESSON, P., Crouy, Aisne, France. July 23, 1932, No. 20829. Convention date, July 23, 1931. [Class 83 (iv).] In a gas-propelled carriage for cutting and welding blowpipes, the gas supply is divided into two parts, one of which supplies the blowpipe and the other propels the carriage and is then exhausted into the atmosphere. The cutting oxygen of an oxyacetylene blowpipe 10, which is vertically adjustable in the carriage 17, is supplied to the nozzle through a valvecontrolled pipe 31, having a branch pipe 32 from which oxygen and air is forced by an injector 33 to a turbine 18. The supply of oxygen and thus the speed of the turbine is controlled by a needle valve 34, the mixed gas being exhausted through ports in the turbine casing. The turbine may drive through worm, bevel or other gear an axle carrying a pair of rollers, the one 24 nearest the blowpipe being secured to the axle and the other being loosely mounted thereon. In a modification, the supply to the injector may be branched at 29 from the flexible feed pipe.
Patent GB-435287-A (GB)
Title: Method of producing precipitates
IPC: A43D25/06
Filed: 1934-07-16
Abstract: <PICT:0435287/III/1> The production of precipitates by reaction between a gas and a solution is effected by causing the solution repeatedly to entrain large volumes of the gas.  The process may be carried out by passing the gas and solution or slurry obtained by reaction through a series of tanks, withdrawing slurry from each tank in the series and returning thereto a part thereof intimately admixed with a considerably larger volume of gas withdrawn from the tank whilst conveying the remainder of the slurry to the next succeeding tank intimately admixed with gas, and withdrawing from the last tank of the series an amount of slurry substantially equivalent to the amount of solution introduced into the first tank.  Three tanks, 5, 5<1>, 5<11> fitted with Venturi tube eductors 6, 7, 6<1>, 7<1>, 6<11>, 7<11> and provided with pumps 31, 31<1>, 31<11> may be used. Solution is introduced continuously through the eductor 6 by means of a pump 20 and admixed with gas withdrawn from tank 5 by a pipe 29. Gas is drawn from a pipe 8<11> through tank 5<11>, pipe 8<1>, tank 5<1>, pipe 8, tank 5, pipe 9, and a water seal 10 by a pump 12.  The pump 31 withdraws slurry from tank 5, recirculates a part through eductor 7 where it is admixed with gas withdrawn by pipe 19, and transports a part to tank 5<1> through eductor 6<1> where it is admixed with gas withdrawn by pipe 29<1>.  Pump 31<1> similarly returns a part of the slurry to tank 5<1> and transports the remainder to tank 5<11>, whilst pump 31<11> returns a part of the slurry to tank 5<11>, and discharges the rest through an outlet pipe 39.  The process may be used for the production of calcium carbonate from lime water and carbon dioxide, or for the production of zinc or cadmium sulphide from zinc or cadmium sulphate solution by means of sulphuretted hydrogen.  In the latter case, residual sulphuretted hydrogen is passed from the pump 12 through a screen box 14 fitted with metal screens to a burner 16.