baber/WOPTO huggingface dataset:
Patent GB-230879-A (GB)
Title: Improvements in the process of tanning hides or skins
IPC: C14C3/00
Filed: 1923-10-16
Abstract: 230,879. Blockey, J. R., and Walker & Sons, Ltd., W. Oct. 16, 1923. Vegetable tanning; treatment preliminary to tanning.-The of hides and skins during tanning is controlled by regulating the acidity (pH) of the tanning liquor and maintaining it constant during the whole process, by adding thereto neutral salts (such as sodium chloride). The tanning liquor may be brought to such a pH as would produce much greater than is desired and sufficient neutral salt is added to bring the swelling down to the exact point required. The skin or hide may be brought to the desired degree of swelling prior to immersion in the tanning liquor by a preliminary treatment in a liquor consisting of acid, water, and a neutral salt of the same pH as is to be maintained in the tanning liquor.
Patent GB-317246-A (GB)
Title: Improvements relating to the reduction of piston slap in internal combustion engines
IPC: F16J9/06
Filed: 1928-09-07
Abstract: 317,246. Andrews, E. S., (Simplex Piston Ring Co. of America, Inc.). Sept. 7, 1928. P i s t o n s, balancing laterally; packing.-In preventing piston slap by pressing a piston against one side of the cylinder by means of the packing-ring, the wave spring expanding the packing is given the requisite excess pressure in one direction by means of an extra layer F. The extra layer may be unattached, or may be secured by a pin G, and may be situated opposite the split in the spring, or adjacent to the split. Specification 317.245 is referred to.
Patent GB-630014-A (GB)
Title: Improvements relating to colour cinematography
IPC: G03B33/00
Filed: 1946-08-28
Abstract: 630,014. Colour kinematography. COMBES, M. B. Aug. 28, 1946, No. 25822. Convention date, May 15, 1941. [Classes 97 (i) and 98 (ii)] In a process of colour kinematography which comprises the production of film negatives by exposure through a multi-coloured screen in contact with a light-sensitive panchromatic film and the printing of positives from such negatives by projection through a lens, the magnification (or reduction) is varied to compensate for contraction or expansion of the negatives after exposure so that the positive images will all be of the same size and can all be placed in register with a multi-colour screen of predetermined size. In one manner of carrying out the process, panchromatic film is exposed through a colour screen, which includes two opaque lines in the margin thereof, so that two transparent datum lines are formed in the side margin of the film or in the spaces between adjacent frames. After processing, the distance between the datum lines on the negative is measured to give a measure of the contraction or expansion of the film, and the required intensity of light for printing positives of each scene is also determined. Lateral notches are then formed in the negative at points along the length of the negative where a change in either light intensity or magnification (or reduction) is required during printing. Such notches, as they pass a given point in the printing machine, actuate electrical contacts which, through a pawl and ratchet mechanism. for example, serve to advance a pilot band of insulating material through one step. This pilot band has been provided with holes or slots at different points in its width, some of which serve to close electrical contacts in a solenoid circuit to vary the printing light intensity, while others actuate a similar arrangement which moves the lens mount relatively to the negative and the positive films for varying the magnification (or reduction). After processing, the positive has printed thereon a multi-coloured viewing screen, the coloured lines of which are caused to register exactly with the elements of each image formed through the coloured lines of the exposure screen, for example, by means of a microscope used in conjunction with the printing roller for the viewing screen. When punching the holes or slots in the pilot band, account may be taken of the contraction or expansion which it is estimated will take place in the positive after processing. Two pilot bands may be advanced by the notched negative, one serving to vary the magnification (or reduction) and the other serving to vary the printing light intensity.
Patent GB-1006238-A (GB)
Title: Electrical components
IPC: H01C17/26
Filed: 1962-07-05
Abstract: <PICT:1006238/C6-C7/1> <PICT:1006238/C6-C7/2> <PICT:1006238/C6-C7/3> <PICT:1006238/C6-C7/4> <PICT:1006238/C6-C7/5> A layer of resistance material is produced on a non-conductive substrate by electroless plating the layer being subsequently heat treated to modify and stabilize the resistance value and the temperature coefficient of resistance. The process may be applied to the production of fixed or variable resistors.  The plating of the resistance film is performed by coating, or impregnating the surface of, the substrate with a catalytic material, e.g. nickel, iron, cobalt, ruthenium, rhodium, palladium, osmium, iridium or platinum, which may be sprayed or painted on or preferably applied by dipping the substrate in a hot palladium chloride solution, or alternatively in a reducing agent, e.g. stannous chloride and hydrochloric acid or hydrazine, and then in a cold palladium chloride solution, to produce a deposition of a small amount of metallic palladium on the substrate surface.  The prepared substrate is then immersed in the plating bath which comprises 3-50 gms./litre of a metallic salt e.g. nickel chloride, 10-100 gms./litre of a reducing agent e.g. sodium hypophosphite to produce a hypophosphite ion, and 10-200 gms./litre of a buffer or complexing agent e.g. sodium acetate.  The deposited metal layer is baked in air at 250-650 DEG F. for several hours to stabilize the resistance and temperature coefficient of resistance, during the heating the resistance of the layer normally is reduced to about 5-40% of its initial value and the temperature coefficient of resistance changes from a negative to a less negative, zero, or positive value. Alternative components of the metallizing bath are from the metal salt, cobalt or nickel cobalt salts, the reducing agent boron hydride, or hydrazine and the buffer agent sodium succinate, glycolate, citrate or tartrate.  Alternatively alkaline solutions may be used by eliminating the buffer solution and adding ammonium chloride.  The pH value of the acid solutions should be maintained at 4-6.5 and the alkaline solutions at 7-11.  The temperature of the bath should be 15-100 DEG C.
Patent GB-1399476-A (GB)
Title: Photocopying apparatus with liquid vapour recovering device
IPC: G03G15/10
Filed: 1972-06-02
Abstract: 1399476 Electro-photographic developing apparatus CANON KK 2 June 1972 [3 June 1971] 25946/72 Heading G2H [Also in Divisions B1 and B2] In apparatus for recovering carrier/developer liquid vapour from photographic copying equipment, e.g. electro-photographic, the vapour enters at 2 and is cooled by plates 5 to form a mist, which mist is converted to liquid droplets as it passes through the electric field provided by a voltage applied to collector nets 9, e.g. 5000 volts A.C., the droplets collect on nets 9 fall to the bottom of chamber 1, liquid is discharged at 3, and air is discharged through conduit 4. In Fig.2, (not shown) the nets are interspersed between the plates of the cooling section, and in Fig.3 (not shown), a corona discharge is used e.g. at 8000 volts.
Patent GB-586945-A (GB)
Title: Catalytic processes
IPC: B01J21/00
Filed: 1944-12-27
Abstract: In catalytic processes wherein the finely divided catalyst is circulated by means of a liquid or gas, it is employed in the form of preformed, spheroidal particles.  Suitable catalytic materials are the oxides, sulphides and oxysulphides of iron, chromium, bismuth, boron, aluminium, gallium, copper, nickel, beryllium, titanium, indium, zirconium, thorium, cerium, scandium, vanadium, manganese, magnesium, silicon, lanthanum, germanium, tin, tantalum, molybdenum, and tungsten.  To form the particles a hydrosol or dispersed gel is sprayed into a drying atmosphere, or a sol is dispersed in a liquid in which it is coagulated.  In the illustrated modification the sol is sprayed into the hot exit gases of the regenerator.  Silica and alumina sols produced respectively in vessels 134, 137 are mixed in 139 to produce a mixture of hydrous gels, which is washed and then mixed in 144 with a peptising agent and water.  <PICT:0586945/III/1> The dispersion is pumped to a spray nozzle 149 in cyclone 157 traversed by the exit gases from the regenerator 112 of a regenerative fluid catalyst cracking plant of conventional construction.  The gel particles produced are passed through pipe 153 to the regenerator and so into the catalyst circuit.  Fines separated from the exit gases in subsequent cyclones or 160, 150 are mixed with the gel dispersion to be sprayed.  Specification 576,058 is referred to.
Patent GB-859662-A (GB)
Title: Improvements in steam or gas sieves
Inventor: LARSSON PER ERIK ARNE
IPC: F01D17/14
Filed: 1959-07-29
Abstract: 859,662. Sieves. SVENSKA TURBIN AKTIEBOLAGET LJUNGSTROM. July 29, 1959, No. 25963/59. Class 117 .[Also in Group XXVI] A steam or gas sieve for preventing nuts or other loose parts from being carried by steam or gas into a turbine is composed of rods 2 .extending between, and secured to, end rings .3, and a number of such units may be aligned, Fig. 1, for which purpose the rings have guide flanges 6, Fig. 4. The rods have dowels 4 which fit into recesses in the ring and are welded thereto. The sieve is disposed concentrically about a mushroom valve 8, Fig. 6, having a seating 7, and steam flows through an inlet 9 and is thrown against an annular wall 10 before reaching the sieve.
Patent GB-1377878-A (GB)
Title: Automatic deburring process
IPC: B23D1/24
Filed: 1972-06-02
Abstract: 1377878 Automatic deburring process YOROZU JIDOSHA KOGYO KK 2 June 1972 [8 Feb 1972] 25980/72 Headings B3B and B3L An automatic deburring unit for removing burrs formed on the inner surface of the crankcase of an engine cylinder block is characterized by cutting edges, for cutting burrs 4 on either side of partition walls 2 and burrs 4<SP>1</SP> along the centre line of the bearing surface on the partition walls, being contoured to the shape of the base of the burrs and being reciprocable to sever the burrs along their base portions. The cutting edges are carried on blade members 7 which have cut-outs to prevent interference with any projections on the inner surface of the crank case. Fig. 13 shows blade members 7<SP>1</SP> carrying two cutting edges. The blade members are mounted on a base member 6 which can be reciprocated. Fig. 17 shows a cutting edge 5<SP>1</SP> suitable for cutting a burr 4<SP>1</SP> on a bearing surface. The unit has two cutting stations, one for cutting burrs 4 and the other for cutting burrs 4<SP>1</SP>. Such a unit has the bases 6 and base blocks provided with drop openings to allow severed burrs to drop away from the cutting edges. Cylinder blocks are transferred into and from the unit via hydraulically operated clamping units.
Patent GB-734760-A (GB)
Title: Improvements in container assemblies for storage heaters for liquids
Inventor: PANISSET DENIS SYDNEY
IPC: F24H1/18
Filed: 1951-11-07
Abstract: 734,760. Container closures. SIMPLEX ELECTRIC CO., Ltd. Nov. 7, 1952 [Nov. 7, 1951], No. 26019/51. Class 125 (3). [Also in Groups XI and XIII] A storage waterheater comprises a glass container 10 having an open end closed by a member 13 which also supports an immersion heater 14 and carries inlet and outlet fittings 15, 16. The member 13 may be of plastic, e.g. moulded in melamine resin and is secured to the container by means of a harness structure which may he of steel and which consists of a dome plate 22 from which depend straps 23 preferably welded to the plate 22, each strap being secured to an eye-bolt 26 passing through a hole 28 in the member 13. Wing nuts 29 on the bolts 26 enable the member 13 to be drawn firmly against a sealing member 19 of resilient material, e.g. rubber. An annular plate 33 having rubber rings 34, 36 is connected to the lower ends of the straps 23 by means of a metal ring 30 and brackets 31 and forms a barrier for retaining thermal lagging material between the container and an outer casing 32. The plate also supports the container by being connected to a back plate 4 by tie bars (not shown). The container may be of non-metallic material other than glass and elastic components may replace the straps 23. The domed-shaped member may be of openwork form and may have a rubber or like lining. The closure member 13 may alternatively be of brass. When the member 13 is of plastic it may have a thin plate of metal or metal foil on its inner side to prevent contact between the water and the member. Specification 734,761, [Group XI], is referred to.
Patent GB-955980-A (GB)
Title: Constructional assembly and structural members for floors and the like
Inventor: WEILER HARRY EDWIN
IPC: B62D33/00
Filed: 1960-07-26
Abstract: 955,980. Vehicle floors. REYNOLDS METALS CO. July 26, 1960, No. 26024/60. Heading B7B. A flooring plank comprises a base member 1 having upstanding webs 2 of which a marginal one has a seat 3 to accommodate the bead 10 on the web 9 of an adjacent plank. The raised rib 5 mates with the inclined wall 7 formed between the raised parts 6, 8 of the plank. Suitably shaped side rave members for each edge of the plank, and a bridging member for use between reversed planks are also described. The plank may also have both marginal edges as shown at the right hand side of the drawing.
Patent GB-1495844-A (GB)
Title: Attachment for a shaft
IPC: G05G1/00
Filed: 1975-06-19
Abstract: 1495844 Handles SOC ANON AUTOMOBILES CITROEN 19 June 1975 [20 June 1974] 26169/75 Heading A4U [Also in Divisions B7 and F2] A handle comprises a bush 1, slotted at la, and a pair of arms 2a, 2b provided with half-journals 3a, 3b, the half-journals being held together by a ring around them to clamp the bush 1 on a shaft (not shown). The bush has splines 4 to engage splines of the shaft and a groove 5 in which an annular bead of the shaft engages for axial retention of the handle. The bush can alternatively have an annular bead, and the shaft a groove. The shaft may be polygonal rather than splined, with the bush 1 having a complementary shape. The ring which clamps the half-journals 3a, 3b together rotates thereon and constitutes a knob. The lever can be of metal or plastics material or can be of metal covered in foam plastics material. The handle may wind a window in a motor vehicle, or may be a spoke of a steering wheel.
Patent GB-892318-A (GB)
Title: Improvements in or relating to bimetallic electrical switches
IPC: H05B41/06
Filed: 1958-08-14
Abstract: 892,318. Thermal switches. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 14, 1958 [Aug. 17, 1957; Dec. 4, 1957], No. 26172/58. Class 38 (5). [Also in Group XXXV] A switch for starting gas or vapour discharge tubes comprises two bimetallic strips 14, 17, arranged to deflect in the same direction when a plate-shaped heater 15, whose resistance decreases with increase of applied voltage, is energized on closure of a main switch 26. The presence of a metal strip 16 produces a thermal time lag such that contacts 20, 21 are closed by deflection of the strip 14 and subsequently opened by the strip 17, these operations being repeated if necessary until the tube strikes. In a modification (Fig. 4) the time lag is produced by a bimetal strip 36 interposed between a heater 37 and another bimetal strip 42, the strips having their high expansion sides in contact so that they deflect in opposite directions. Simpler versions of the switch have only one bimetal strip, with no ambient temperature compensation and no time lag device (Figs. 1 and 2, not shown). The switch may be arranged in a sealed casing and a spark-absorbing capacitor 29 may be arranged across the contacts. The heater may engage the high expansion side of the bimetallic element or the low expansion side. Specification 292,110 is referred to.
Patent GB-862858-A (GB)
Title: Aircraft arresting gear
IPC: B64C25/68
Filed: 1959-07-30
Abstract: 862,858. Aircraft arresting gear. ALL AMERICAN ENGINEERING CO. July 30, 1959 [Nov. 19, 1958], No. 26182/59. Class 4. Aircraft arresting means comprises a spring arm secured at one end to the fuselage so that it extends downwardly when the spring is unstressed, and having at the other end a hook, and means for securing the hook end of the arm to the fuselage. Fig. 21 shows the under part of a fuselage A, to which the arm 10 is secured at 11 by a plurality of bolts, or a single bolt to a reinforcing plate attached to structural parts of the fuselage. The shape of the arm when unstressed is such that when the aircraft has touched down, and the hook 12 is free, it exerts some downward force on the runway R. In flight, the hook end of the arm is secured to the fuselage, and the arm flexed to fit against the fuselage, by a bolt passed through the hook end of the arm and an aperture in the fuselage, and secured by a nut. Either the nut or the bolt head can be disintegrated by an explosive charge detonatable by remote control, to release the arm prior to touch down. The arm may be stainless steel, the hook shank being welded into a notch in the arm. A shoe 43, shown in plan, Fig. 12, having a groove 44, is fitted into the hook 12, Fig. 9, to receive the arresting cable. The shoe is secured by a plate 49 and bolts screwed into apertures 47, 48 in the shoe. Specification 785,151 is referred to.
Patent GB-621634-A (GB)
Title: Improvements in or relating to manually operated whisks or beaters
IPC: A47J43/10
Filed: 1946-08-30
Abstract: 621,634. Electric hot-plates. STRINO, D., TRINCHERO, L., and MELLANA, A. Aug. 30, 1946, No. 26199. Convention date, July 5, 1945. [Class 39(iii)] [Also in Group II] In a manually-operated domestic whisk, the beaker containing the material to be mixed is mounted on a plate having a projecting rim which is provided with two lugs adapted to engage two gaps 10 in a re-entrant rim 9 of an electric heater. The heater comprises a heating plate 32 and a hollow handle 33 which encloses the terminals for the connecting leads.
Patent GB-1460294-A (GB)
Title: Recovery of polychloroprene rubber
IPC: C08F2/00
Filed: 1973-06-01
Abstract: 1460294 Separation of polychloroprene rubber from latex BP CHEMICALS INTERNATIONAL Ltd 23 May 1974 [1 June 1973  27 Nov 1973] 26228/73 and 54969/73 Heading C3P Polychloroprene rubber is separated from a latex obtained by polymerization in the absence of or in the presence of not more than 0À5 wt., per cent (based on the total monomer(s) used) of a rosin acid soap emulsifier, by adding the latex to an aqueous coagulant solution of aluminium sulphate and a water soluble acid, a water dispersible parting agent being brought into contact with the polychloroprene rubber in an aqueous medium during or after coagulation, and thereafter separating the coagulated product from its aqueous medium. The water soluble acid is preferably a mineral acid such as HCl or H 2 SO 4 . A weak water soluble acid such as acetic acid, may be added to the latex, before the latter is added to the coagulant solution, which may optionally contain an alkaline earth metal salt such as CaCl 2 . Suitable parting agents are finely divided inorganic powders such as mica, talc, CaCO 3 , clays and silicas.
Patent GB-1269974-A (GB)
Title: Production of ion-woven structures
IPC: D04H3/16
Filed: 1969-05-22
Abstract: 1,269,974. Production of non-woven structures. LUTRAVIL SPINNVLIES G.m.b.H. 22 May, 1969 [24 May, 1968], No. 26263/69. Heading B5B. [Also in Division D1] Non-woven fleece-like structures are made from continuous filaments of polymeric materials by (i) extruding the filaments and collecting them into two or more sheets 1, 2 of linearly arranged filaments, one sheet having filaments different from those in the other sheet(s), (ii) leading each sheet individually by air streams through an open-eneded elongated duct 3, 4 arranged parallel to the duct(s) through which the other sheet(s) are led, (iii) positioning a deflector plate 5, 6 to deflect at least one sheet and its associated air streams, on emerging from the duct, to merge with the other sheet(s) into a single mixed sheet 7, and (iv) collecting the mixed sheet on a carrier 8 to form a fleece 11. Preferably all the sheets are deflected by plates, and the deflector plates are either inclined, as shown, so that the sheets and air streams strike the plates and are deflected, or convexly curved (Fig. 2, not shown) so that the sheets and air streams are led around them and deflected in an arcuate path. The carrier belt 8 moves more slowly than the sheets of filaments, and is porous with a suction device 9 beneath, to assist entanglement of the filaments. Heated rolls 12 help to consolidate the fleece 11, and this is collected in a funnel 13 to form rod-like elements. The sheets 1, 2 may have filaments of different diameters and/or different materials, e.g. two types of polypropylene (in the example), two polyesters, or a polyester and a polyamide.
Patent GB-700046-A (GB)
Title: Improvements relating to two-stage electrostatic precipitators
IPC: B03C3/12
Filed: 1951-11-09
Abstract: 700,046. Electrostatic filters. HEINRICH, R. F. Nov. 9, 1951, No. 26269/51. Class 39(1) In a two-stage electrostatic precipitator corrugated plates 3 are provided between the two stages 1, 4 so as to prevent radiations from the ionizing stage penetrating directly into the collecting stage and so causing ionization there. The corrugated plates 3 are preferably earthed.
Patent GB-165694-A (GB)
Title: Improvements in shoes
IPC: A43B13/39
Filed: 1920-09-13
Abstract: 165,694. Hess, M. S. Sept. 13, 1920. Connecting uppers to insoles and soles. - A composite insole is made of a subsole 4, Fig. 2, of cheap material such as paper, and a supersole 5, preferably of chemically-treated felt of good wearing quality, the two soles being interlocked by marginal feathers 7, 8 on the respective soles. The feather 8 is formed by a slanting cut tlirough the underside of the sole 5, while the feather 7 is formed on sole 4 by splitting the material and turning it down in the usual way to form stitching-rib 6. In the case of shoes with pointed toes, the feather 8 is discontinuous, the rib 6 and feather 7 at the toe being bound with cemented canvas 11, Fig. 3, and attached to the upper sole 5 by stitches 12.
Patent GB-1389382-A (GB)
Title: optical sound tracks
IPC: G06F17/00
Filed: 1973-06-01
Abstract: 1389382 Optical sound films UNITED STATES ATOMIC ENERGY COMMISSION 1 June 1973 [21 June 1972] 26286/73 Heading G5R A film carrying pictorial images and an optical sound track correctly displaced for synchronization in projection is produced by digitizing the sound signals and using a computer to control a film plotter in which the images and the sound tract are displayed on a cathode ray tube and photographed by a camera.
Patent GB-1421685-A (GB)
Title: Phenoxyalkanecarboxylic acid derivative the preparation thereof and pharmaceutical compositions containing it
IPC: C07C59/68
Filed: 1974-06-13
Abstract: 1421685 Hypocholesteroleamic &c compositions LUDWIG MERCKLE KG 13 June 1974 26374/74 Heading A5B [Also in Division C2] Pharmaceutical compositions having cholesterol and lipid lowering activity being in conventional forms for oral or rectal administration comprise a salt of formula: and an excipient or diluent.
Patent GB-746582-A (GB)
Title: Improvements in and relating to draught exclusion from doors, windows and the like
IPC: E06B7/22
Filed: 1954-09-13
Abstract: 746,582. Draught excluders. BARRING- TON, V. J. Sept. 13, 1954, No. 26405/54. Class 20(3). A draught excluder C comprises a strip of flexible material of single and even thickness which is secured to the door or window A or as shewn to its frame B so that a free edge is brought to bear against the co-operating surface under the influence of the air draught D. The strip may be of leather-cloth, rubber, metal foil, fabric, paper, or the like and may have a portion of its width on one side prepared with an adhesive of the non-drying, tacky, pressure-sensitive kind. Alternatively the strip may be secured by nails or screws.