baber/WOPTO huggingface dataset:
Patent GB-533212-A (GB)
Title: Means whereby insulating or other material in sheet or slab form may be attached to steel frame buildings
IPC: E04B9/24
Filed: 1939-07-03
Abstract: 533,212. Wall and ceiling coverings. INKLEY, B. July 3, 1939, No. 19339. [Class 20 (iv)] Insulating or similar sheet or slab covering for walls &c. is attached to bent sheet-metal T-shaped frame members 1 by means which is engageable with or integral with the web of the T-shaped member and penetrates the edges of the covering material, which are directly supported by the flanges of frame members. The means may be in the form of a tapered plate 2 which is wide at its centre and which passes through an aperture in the web 1 of the frame member and is locked therein, its ends penetrating the edges of the boards 4 on both sides. Alternatively pointed tangs 5 may be pressed out from the metal of the web of the T-frame member or welded therein. The flanges of the frame members may be grooved to form drainage channels as described in Specification 478,439. Specification 520,343 also is referred to.
Patent GB-1042510-A (GB)
Title: Digital memory storage systems
IPC: G11C15/02
Filed: 1964-05-12
Abstract: 1,042,510. Circuits employing bi-stable magnetic elements. GOODYEAR AEROSPACE CORPORATION. May 12, 1964 [May 15, 1963], No. 19675/64. Heading H3B. [Also in Division G4] An associative memory consisting of a matrix of magnetic cores with one word stored in each row in interrogated column-by-column by short-duration high-amplitude pulses each of a sense dependent on the interrogating bit. These pulses move the magnetic state of each core indicating a mismatch only partly to its opposite state, so that on termination of the pulse the core returns to its original state owing to the elastic magnetic property of the core material. Word output lines corresponding to words identical with the stored word do not receive an output pulse large enough to switch their " search result " cores in a second matrix which is later examined for such matching words.
Patent GB-121282-A (GB)
Title: Improvements relating to Electrodes of Electric Furnaces.
IPC: C25C7/02
Filed: 1918-11-29
Abstract: 121,282. Soc. Electro-Metallurgique Franþaise. Dec. 3, 1917. [Convention date]. Couplings. - A current-conducting electrodeholder for furnaces has radial projections engaging in transverse holes in the electrode and sealed therein by conducting paste. The arrangement is particularly applicable to electrodes consisting of bundles of rods, and to block electrodes. The electrode shown in Figs. 1 and 2 is composed of four square rods a having diagonal grooves receiving flat wings e on the holder. Good connexion is ensured by cast metal f and conducting-cement g. The electrode is covered with refractory material h. A stream of water flows through passages 1 - - 7 in the cruciform stem d and wings c of the holder. In another construction, the holder has four cylindrical bosses entering holes of larger diameter in the electrode rods. Granular conducting-material is compressed within the holes by washers and nuts on the bosses. The ends of the holes are filled with carbon paste. Parts of the rods are cut away to form a recess which accommodates the stem of the holder and is packed with carbon paste. Holders for a number of compound electrodes may be attached to a single bridge.
Patent GB-403459-A (GB)
Title: Improved portable electrically-driven grinding, polishing or surfacing machine for stone and like hard materials
IPC: B24B27/00
Filed: 1932-07-14
Abstract: 403,459. Portable grinding and polishing machine for stone &c. CASSIE, F. B., 600, King Street, Aberdeen. July 14, 1932, No. 19890. [Class 60.] A portable electrically driven grinding, polishing, or surfacing machine for treating the surface of stone, marble, granite &c., for example, floors, comprises a stand 5 carrying a vertical pillar 7 upon which is mounted a rotatable carriage 8 resting on a thrust collar 9 adjustable vertically on the pillar and clamped by a pin 10. On the carriage are pairs of rollers 11, 12 spaced to receive between them a pair of parallel bars 13 ; the rollers 12 are mounted eccentrically on a spindle 16, whereby, by rotation of the spindle, the space between the rollers may be varied. The bars are connected by a stay 14 and a handle 15, and carry near the handle an electric motor 23 with a vertical shaft 24 driving, through gearing, a tool spindle 28 carrying, by a universal joint 30, a grinding &c. tool 33. A weight 34 is slidable on the bars 13, or a spring may be fitted, to vary the pressure of the tool on the work. In operation the bars 13 may be swung up and down, to an extent limited by the setting of the rollers 12, and moved transversely of the carriage 8 ; the motor and tool may be adjustable along the bars 13. In a modification, the pillar is mounted on a base supported by castors, and the bars supporting the motor and tool are pivoted on the carriage ; the motor and tool are adjustable along the bars, and an adjustable weight also is carried by the bars. The machine also may be adapted for treating walls.
Patent GB-771194-A (GB)
Title: Improvements in or relating to motor driven compressor type refrigerators
IPC: H02K5/24
Filed: 1955-07-11
Abstract: 771,194. Motor mountings. STEMPELHERMETIK GES. July 11, 1955 [July 21, 1954], No. 20021/55. Class 35. [Also in Group XXVIII] A vertical spindle motor and compressor unit is mounted in a casing by two cylindrical or conical springs above and below the unit and coaxial with the motor shaft, the springs which are of opposite hand being secured at their ends to the unit and to the casing, and the lower spring is of greater strength than the upper spring. As shown, the springs 7, 7a extend into recesses 9 formed in members 10, 11 secured to the motor and compressor.
Patent GB-1447350-A (GB)
Title: Process for treating surfaces
IPC: B29C33/60
Filed: 1975-05-13
Abstract: 1447350 Porous surfaces with embedded particles C W FORESTEK 13 May 1975 [21 June 1974] 20125/75 Heading B2E A surface, e.g. a mould or part of a mould, having pores in which particles are embedded is prepared by:- (a) heating a porous surface, e.g. Ni or Cr plate or phosphated metal to from 100‹F to 650‹F to enlarge the pores; (b) depositing on the surface particles of perfluorocarbon polymers, metals and non-metals and their oxides, nitrides and carbides and metal disulphides at at least 100‹F below the temperature of the surface, (c) allowing surface and particles to reach temperature equilibrium so as to lock the particles into the pores, (d) compacting the embedded particles by treatment with a fluid stream containing solid particles at 30-100 p.s.i., (e) heating the surface to at least 100‹F, (f) depositing additional particles similar to those of step (b) on the surface at at least 100‹F below the temperature of the surface and (g) locking the particles into the pores by allowing the surface and particles to reach temperature equilibrium. Perfluorocarbon polymers are defined as those hydrocarbon polymers in which all H atoms are replaced by F atoms or by a mixture of halogen atoms in which there are at least 3F atoms for each atom of another halogen, e.g. Cl. Preferred polymers are polytetrafluoroethylene, polymonochlorotufluoroethylene and mixtures thereof, copolymers of tetrafluoroethylene with hexafluoropropylene and mixtures of polytetrafluoroethylene and polyhexafluoropropylene. Other suitable particles include graphite, MoS 2 , Ti, Zr, Mo, Hf, Se, Sb, BaO, Ba 2 C, Be, BeO, BN, Ce, Cr, Co, Cu, HfC, Ir, Mn, Ni, Pt, Rh, Si, C, Ta, W, WC and V.
Patent GB-614101-A (GB)
Title: Polymerization of dihydropyran
IPC: C08G61/12
Filed: 1946-07-05
Abstract: Dihydropyran is polymerized in aqueous emulsion in the presence of a peroxygen compound and a reducing agent.  As catalysts, hydrogen peroxide or water-soluble persulphates, and as reducing agents zinc or sodium formaldehyde sulphoxylate, zinc or sodium hydrosulphite, sodium or calcium bisulphite, sodium thiosulphate, formamidine sulphinic acids, p-toluene sulphinic acids, and di-alkyl sulphites, are specified.  Emulsifiers such as starch, dextrin and polyvinyl alcohol may be used.  The polymer is soluble in 90 per cent formic acid.  The low molecular weight products may be used as plasticizers, solvents and adhesives, and the high molecular weight polymers may be moulded or solvent cast.  Aqueous emulsions of the polymer may be used as sizes or adhesives. Specification 558,106 is referred to.
Patent GB-151794-A (GB)
Title: Improvements in or relating to railway vacuum-brake cylinders
IPC: B60T17/08
Filed: 1919-08-16
Abstract: 151,794. Finder, T. Aug. 16, 1919. Fluid-pressure.-In a vacuum-brake cylinder of the type mounted on trunnions and connected to the train-pipe &c. through the trunnions, the ends of the stationary connecting-pipes are inserted into packed joints in the ends of the trunnions, so that the cylinder can swing about the pipe. Fig. 1 shows an arrangement in which a stationary pipe 7 connected to the train pipe is inserted into the end of the hollow trunnion 5 by a packed joint 8, and communicates with the space below the piston 3 by a passage 6 in the cylinder wall. A pipe 16 communicating with the vacuum reservoir is inserted into the other trunnion 11, from which a passage 12 leads to the space above the piston. A ball valve 2 is arranged in the piston. Modifications are described in which the cylinder is surrounded by a vacuum reservoir, and in which the ball valve and release valve are combined in one valve outside the cylinder and communicate with the spaces in the trunnions through pipes.
Patent GB-1359924-A (GB)
Title: Device for indicating brake lining wear
IPC: F16D66/02
Filed: 1972-05-01
Abstract: 1359924 Brake wear indicators KNORRBREMSE GmbH 1 May 1972 [29 April 1971] 20218/72 Heading F2E A brake lining wear indicator comprises valve control means switchable between first and second fluid control states to vary fluid pressure at an outlet thereof by a wear sensor sensing wear of a brake lining exceeding a predetermined amount. An opposed pad disc brake has members 13, 13<SP>1</SP> pivoted to respective brake lining carriers 16, 16<SP>1</SP> and to a valve body 3 which contains opposed change-over valves in the form of pistons 9, 9<SP>1</SP> controlling communication between fluid lines 19, 20, 21, 30 and 30<SP>1</SP>. Compressed air is fed via lines 20, 19, 21, 23 to an indicator when the pads are not worn the predetermined amount. When one pad 18 wears, the member 13 pushes the piston 9 by an actuator 7 to cause the air in the indicator line 23 to vent to atmosphere via line 30. Air pressure decrease in the indicator, Fig. 4, causes a piston 26 to be actuated by a spring 27 to provide a visual signal 29. If the other pad 181 wears, piston 9<SP>1</SP> is moved to cause the air in the line 23 to vent via lines 19, 30<SP>1</SP>. Similarly line 23 is vented when both pads are worn. For a railway vehicle bogie, valves for each wheel are connected in series, the input of the first valve communicating with a compressed air supply and the outlet line from the fourth valve leading to an indicator, or to two parallel indicators one on either side of the bogie. Instead of the change-over valves, two-way valves may be used.
Patent GB-1532242-A (GB)
Title: Radar
IPC: G01S13/22
Filed: 1975-05-14
Abstract: 1532242 Pulse doppler radar MARCONI CO Ltd 13 Oct 1975 [14 May 1975] 20244/75 Heading H4D Pulse doppler radar designed to overcome velocity ambiguities uses rapidly switching p.r.f.'s (e.g. 8KH 3  and 6À6KH 3 ) so that a target gives returns at both p.r.f.'s during one sweep, and a spectrum analyser as described in Specification 1,299,023 whereby the doppler shifted returns are converted into a corresponding number of pulses Fig. 2 having a Gaussian amplitude variation, a spacing corresponding to the particular p.r.f. and respective time positions, relative to the return giving rise thereto, corresponding to the doppler shift. Fig. 4(a) shows the analyser output pulses for two returns at 8KH 3  p.r.f. and four at 6À6KH 3 , for a doppler shift #d of 2KH 3 . No 'fold over' or velocity ambiguity arises. When the doppler shift is greater than the lowest p.r.f. e.g. 10KH 3 , 'fold over' occurs Fig. 4(c) and the analyser output pulses for the two p.r.f.'s are differently relatively positioned. The analyser output pulses are integrated by means of a commutated circuit Fig. 3 comprising two sets of, e.g. ten, integrating capacitors 34, 36 dealing with respective successive bands of doppler shifts e.g. 0À8KH 3  wide, the commutation switches 32, 38 being in sync with the p.r.f., and on the change from 8KH 3  to 6À6KH 3  the last two capacitors in the sets are bypassed. Thus indicating in Fig. 4 (b) the ten integration capacitor 34 as A-J the 2KH 3  output pulse is always stored in the third capacitor C, giving improved S/N. In the #d = 10KH 3  case Fig. 4(c) the output pulses for p.r.f. 8KH 3  would be stored in capacitor C, but those for 6À6KH 3  would be stored in capacitor E. To overcome this a second integrating circuit as shown in Fig. 3 is used, in parallel with the first for dealing with cases of #d = 6À6KH 3 #13KH 3 , and for the p.r.f. 6À6KH 3  the phase of the commutation is advanced two capacitors and capacitor G, H are bypassed. This gives, Fig.4 (d) capacitor C always storing the output pulses.
Patent GB-594815-A (GB)
Title: Method and machine for cutting openings in ribbons or strips of metal or other material
IPC: B21D31/04
Filed: 1939-07-12
Abstract: 594,815. Making grids. MESNEL, P. July 12, 1939, No. 20303. [Classes 83 (ii) and 83 (iv)] [Also in Group VIII] Shearing ; punching.-In cutting slots or holes out of a metal ribbon or band, the ribbon &c. is passed between pairs of cutting wheels which are in contact at one point of their periphery and cut slits in the ribbons. The bands are thus prepared for subsequent use, such as for linings of guideways of motor-car windows or particular cut-out pieces obtained. The band, which may have ribbed and corrugated edges, is passed through guides 6 adjustable by slots 9 on a table, first between a pair of rotary wheels 21, 23, Fig. 5, with co-operating teeth 24, 25 of triangular section, which come into contact along a line 79 so as to cut the plane centre part of the band to form transverse slots 77, Fig. 9, leaving blades 78 deviated from the plane of the band. The wheels 21, 23 may be of slightly different diameter with teeth of the same size or may be of the same diameter with teeth of different cross section. The pinion 61 on the shaft 17 of the wheel 21, which is geared through a pinion on lower wheel shaft to a motor-driven shaft 58, is angularly adjustable on the shaft 17 by curved slots and screws 63 so as to adjust the position of the teeth on the cutting wheels relatively to each other. The band then passes between a toothed wheel 28, Fig. 3, rotated by the feed of the band and a roller 36 geared to to the driving shaft, the wheel 28 has teeth 29, Fig. 6, relieved at 30 and separated by spaces 31 of the same width as the teeth. The end faces of the wheel co-operate with flanges 34, 35 on the roller so as to engager the ends of alternate blades 78 and cut them out by effecting longitudinal cuts, the blades being ejected by fingers 39, 40 engaging grooves in the roller. The band then passes through a pair of driven smooth rollers 53 to return the deviated portions to the plane of the band and so complete the formation of the openings 80, Fig. 13. The upper rolls or wheels are adjustable by threaded rods 47. The wheels 21, 23 may be sharpened by a circular grinding wheel and the wheel 28 may be in two parts so that shims may be inserted after sharpening. The holes may alternatively be oblique, elliptical or other regular or irregular shape.
Patent GB-294175-A (GB)
Title: Improvements relating to the conversion of smelts into foaming highly porous masses
IPC: C21B3/06
Filed: 1928-07-13
Abstract: 294.175. Giller, H. L. T., (Assignee of Ohrt, P.). July 19, 1927 [Convention date]. Granulating. - Relates to processes in which molten slags and other metals are converted into porous masses by being poured into water, and consists in distributing the melts into separate containers, the water in which is evaporated by the melt. The separate containers may be on a moving wheel or endless band, or may be fixed. As shown, a number of containers a are arranged on the periphery of a wheel mounted on an horizontal axis c. The containers move in succession under a water supply pipe d, and a slag trough e so that each container receives first a predetermined quantity of water and then the molten slag which, by the steam generated, is converted into a highly porous mass. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also treatment of the melts with a stream of air, granulation of the melts in the separate containers, and a construction of container to prevent water from dripping on to the discharged material. If granulation is to be obtained the water is supplied to the containers simultaneously with or after the melt. To prevent any water which remains in the containers from falling on to the discharged material, the containers may be provided at the dipping edge with a lateral outlet spout h, Fig. 4 (Cancelled), for water. This subject-matter does not appear in the Specification as accepted.
Patent GB-700827-A (GB)
Title: Improvements in or relating to a cylinder ridge reamer
IPC: B23D77/04
Filed: 1951-08-30
Abstract: 700,827. Reamers. AMMCO TOOLS, Inc. Aug. 30, 1951 [Sept. 18, 1950], No. 20483/51. Class 83 (3) A rotatable cylinder-ridge reamer comprises a pair of end members 20, 24 having grooves tangential to a base circle concentric with the reamer axis, means 28 for moving the members to and from each other to adjust the reamer; the means being slidable in one member 20 and threaded through the other 24, guide members 30, ... 32 supported by said end members and each having a body element and a head element 40, the guide members converging inwardly and the head element being positioned to move radially of the axis, means 48 for supporting the reamer in a cylinder, a reamer blade assembly on one head element, and means 38 yieldably retaining the guide members. The blade assembly comprises a cutting member 82 and a resilient or elastic blade equalizer 64 disposed between the cutting member and the inner surface of a recess in the guide 32. The cutting-edge of the blade is inclined so as to countersink the cylinder bore very slightly and ensure complete removal of the ridge 16.
Patent GB-1255900-A (GB)
Title: Keyboard data entry device
IPC: G06K7/01
Filed: 1970-04-29
Abstract: 1,255,900. Retractive switches. INTERNATIONAL BUSINESS MACHINES CORP. 29 April, 1970 [2 May, 1969], No. 20484/70. Heading H1N. A hand-held keyboard data device 10 is in combination with an actuator 52. The keyboard utilizes a diaphragm switch matrix similar to that described in Specification 1,134,507. The actuator 52 includes a switch 60 which must be actuated in addition to the actuation of a selected data entry switch to effect transmission of data to an associated data receiving unit. To indicate to an operator that data has been entered, the actuator switch 60 generates an audible sound and in addition, a light is illuminated on the keyboard. The actuator 52 comprises a projecting element 55 which is retracted initially against the bias of a spring in switch 60 and then against the bias of a stronger spring 65 which provides lostmotion overtravel. The nose of the housing 53 cannot enter the lesser diameter portion of the frusto-conical openings in panel 16 and thus the force applied to the diaphragm switch is limited to a value determined by spring 65. A printed-circuit board (23, Fig. 2, not shown) constituting the fixed contacts of the diaphragm switch matrix within device 10 is connected to cable 28 by a plug and socket (25, 27).
Patent GB-694762-A (GB)
Title: An odour trap for sanitary installations
IPC: E03C1/292
Filed: 1951-08-30
Abstract: In a water trap for sanitary installations comprising a housing with pipe-union elements for inlet and outlet, the housing is made of elastic material which may be compressed by hand to clear any stoppage and contains an immersed inlet pipe also of elastic material.  The inlet pipe may contain a ball valve to close the inlet when the housing is compressed.  Various methods of connecting the trap to inlet and outlet pipes are described and illustrated. Reference has been directed by the Comptroller to Specification 580,223.
Patent GB-381971-A (GB)
Title: Improvements in or relating to the manufacture of sodium aluminate
IPC: C01F7/04
Filed: 1931-07-17
Abstract: A process for the production of sodium aluminate comprises extracting bauxite or other aluminous ore so as to obtain a liquor having a Na2O.Al2O3 ratio of 1,5-2,5 : 1 and crystallizing said liquor to yield the hydrated compound Na2O.Al2O3.2H2O or the anhydrous compound Na2O.Al2O3, the former being obtained when the concentration of the liquor is from 45-65 per cent and preferably about 55 per cent, and the anhydrous compound when the concentration is about 78 per cent and the temperature of crystallization about 100 DEG  or over.  The ore may be sintered with soda ash and the product lixiviated, or in a preferred embodiment, the ore is extracted with 40 per cent soda lye at 120-130 DEG  C. to give a solution in which the Na2O.Al2O3 ratio is 1,9 : 1.  The liquor is filtered employing a filter press carrying nickel gauge leaves and with a calcined diatomite precoat.  After concentration of the liquor to the requisite strength and seeding, if necessary, the hydrated or anhydrous compound is crystallized, employing a crystallizing vessel similar to that disclosed in Specification 333,598, [Class 32, Distilling &c.].  During crystallization of the hydrated compound, the temperature falls from 80-30 DEG  C.  Mother liquor may be returned to the extraction stage. The crystals freed from adherent mother liquor, for example by centrifuging, may be washed and dried.  The hydrated compound may be heated to remove water of crystallization.  A formula Na2O.Al2O3.2\ba1/2\beH2O is assigned to the hydrated compound in the Provisional Specification.
Patent GB-1338672-A (GB)
Title: Preloaded hydrostatic slide bearing
IPC: B23Q1/38
Filed: 1971-04-19
Abstract: 1338672 Machine tool carriages GIDDINGS & LEWIS Inc 19 April 1971 [16 Feb 1970] 20615/71 Heading B3B [Also in Division F2] A hydrostatic bearing for supporting a machine tool work-table has a supporting member 15 having an upper bearing surface 18 and a narrower lower bearing surface 28 and two opposed surfaces 30, 31 transverse to the upper and lower surfaces. The supported member 11 carries a plate 22 in which are located a plurality of fluid pads 42 which are preloaded so as to engage the lower bearing surface 28 and form a hydrostatic bearing therewith. A preloaded fluid pad 54 is arranged in the supported member so as to form a hydrostatic bearing with one of the transverse surfaces 31, and the member has additional surfaces which engage the upper bearing surface and the other transverse bearing surface and fluid is supplied to form further hydrostatic bearings. The fluid pads are loaded by means of fluid pressure acting on disc shaped pistons secured to the pads, the pistons being located in cylinders provided in the plate 22 or the supported member. Alternatively, the piston may be fixed to the supported member and the piston provided in the pad. 0-rings are provided to seal the piston and cylinder. The fluid for pressurizing the bearings and loading the pads is preferably supplied from independent sources. Seals 65, 69 are provided to prevent loss of bearing fluid and the fluid may be collected in channels 78, 79, 80, 81, 82 which are connected to a suction pump.