baber/WOPTO huggingface dataset:
Patent GB-914616-A (GB)
Title: Improvements in and relating to positive displacement hydraulic pumps and motors
IPC: F04C2/14
Filed: 1960-09-09
Abstract: 914,616. Rotary engines and pumps. BOSCH G.m.b.H., ROBERT. Sept. 9, 1960 [Sept. 15, 1959], No. 31053/60. Class 110 (2). In a gear pump or motor, the cover 9, Fig. 1, is located with respect to the casing 1 by a cover projection 10 having a sliding fit in the bore 2 of two overlapping parallel bores 2, 2<SP>1</SP> in which rotate gears 7, 8 mounted between spectacleshaped bearing-bushes 4, 4<SP>1</SP>. The projection 10 is interrupted in the region of the bore 2<SP>1</SP> by a distance-piece 11 shaped to fit the intersection of the bores to prevent its rotation. The thickness of the distance-piece is selected to take care of the differences in the tolerances in the depth of the bores and the axial length of the bushes and gears to allow the longitudinal movement of the bush 4<SP>1</SP> necessary for the operation of the pump or motor. A figure " 8 " groove in the front face of the bearing-bush 4<SP>1</SP> fitted with an 0-ring 25 provides a pressure zone 26 connected by a passage 28 with the pump delivery chamber to cause a firm connection between the bushes and the gears during operation of the pump. A sealing-ring 29 fitted in a casing groove 30 seals the casing against leakage and a sealing-ring 13 inserted in the cover 9 prior to assembly seals the drive-shaft.
Patent GB-1128827-A (GB)
Title: Improvements in or relating to gas lasers
IPC: H01S3/104
Filed: 1966-07-11
Abstract: 1,128,827. Lasers. UNITED AIRCRAFT CORP. 11 July, 1966 [16 July, 1965], No. 31098/66. Heading H1C. A gas laser includes an elongate tube filled with gas, electrodes for producing a D.C. discharge in the tube, a mirror at each end of the tube and means for applying a transverse magnetic field to the tube. It is stated that such a field gives rise to an increased optical output for a given gas pressure and tube diameter. The field may be varied to modulate the output. In addition an axial magnetic field may be applied and the two fields controlled in pushpull from a modulator. The gas filling may be helium-neon, krypton or argon. The transverse field is stated to increase the mean electron temperature of the discharge, leading to more efficient pumping.
Patent GB-1322225-A (GB)
Title: Childs play-pen
IPC: A47D13/06
Filed: 1970-06-26
Abstract: 1322225 Play pens G PEREGO 26 June 1970 [17 April 1970] 31162/70 Heading A4U A collapsible play pen comprises an annular, upper portion D' and a circular, lower portion D" of slightly smaller diameter, both portions being made of plastics material and connected together by a flexible nylon net R, upper and lower edges of the net being threadable on plastics hooks formed integrally with the portions D' D". Metal legs 1 are pivoted to the portion D' and are slidably retained in U members 2 on the lower portion D" to fold underneath the portion D" when the portions are collapsed into the same plane. Struts 3 pivotally interconnected at 5 have bent ends received in sockets 10 and support a canopy. The portions D', D" may be formed in a single separable piece by injection moulding.
Patent GB-363044-A (GB)
Title: Manufacture of 1:4:5:8-naphthalene-tetra-carboxylic acid and derivatives thereof
IPC: C07C51/16
Filed: 1930-10-17
Abstract: Naphthalene tetracarboxylic acid.--The products obtained from acenaphthenes and 1 : 3-dicarboxylic acid nitriles by the process of Specification 359,201 (probably diketimides) are subjected to treatment with oxidizing agents to give naphthalene-1 : 4 : 5 : 8-tetracarboxylic acid.  According to examples, the oxidizing agents may comprise sodium or potassium dichromate, nitric acid, potassium permanganate, manganese dioxide, and chromic acid, in conjunction with sulphuric acid.
Patent GB-618341-A (GB)
Title: Improvements in apparatus for reproducing sound from films
IPC: G11B7/00
Filed: 1946-10-21
Abstract: 618,341. Sound-film apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., and BOWEN, A. Oct. 21, 1946, No. 31259. [Class 40 (ii)] In an apparatus for reproducing sound from film having an exciter lamp directed on to the sound track, the lamp is connected to its source of supply through a resistance, the value of which is diminished as soon as the film is set in motion by short-circuiting the, or part of the, resistance, for the purpose of preventing damage to the film by the exciter lamp.
Patent GB-870079-A (GB)
Title: Process for welding polyolefins
IPC: B29C65/00
Filed: 1957-10-07
Abstract: A composition for making films, strips, or sheets which can be resistance welded comprises a polyolefin, e.g. polyethylene, and a conductive filler, e.g. carbon, present in such an amount that the specific resistance of the composition so formed is between 3 and 100k. ohms cm.  The polyethylene is preferably made by a low-pressure process.
Patent GB-237499-A (GB)
Title: Improvements in and relating to the manufacture of roof felt
Filed: 1924-12-31
Abstract: 237,499. Clark, F. H. Dec. 31, 1924. Paints.-A paint for felt tiling consists of bitumen 60 per cent, ochre 15 per cent, and white spirit 25 per cent.
Patent GB-354117-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/00
Filed: 1930-10-20
Abstract: 354,117. Vacuum cleaners. BOGER, C.. 3, Bismarckstrasse, Weimar, Germany. Oct. 20, 1930, No. 31418. Convention date, Oct. 21, 1929. [Class 8 (i).] The casing of the motor d and fan c of a vacuum cleaner' is mounted on the side wall a made of suitable insulating material of a carrying case of the usual type, the suction nozzle e projecting through the wall. The dust bag f is arranged as shown and the tools g are arranged in the lid b.
Patent GB-719620-A (GB)
Title: Arrangement of the pressure chambers in rotary hydraulic shock absorbers
IPC: F16F9/14
Filed: 1950-12-28
Abstract: . 719,620. Hydraulic shock absorbers. GIRARD, A. A. L. Dec. 28, 1950 [June 12, 1950], No. 31465/50. Class 108(3) A rotary hydraulic shock absorber has a pressure chamber, comprising a tubular member A to which a cover 2 is secured by welding seams 4, at least one radial partition 6 fitted against the inner face of the cover and secured thereto and to the member A by welding seams 8, and an end 1 fitted against the partition 6 and secured by a welding seam 3 to the tubular member. In the construction shown in Fig. 6, two angularly-spaced vanes 23 rigid with an operating shaft 16, define working chambers on either side of a single fixed partition having respective damping passages 21, 22 therethrough. Spring-loaded relief valves 17 are provided. The working chambers are also connected by a duct 27. A chamber 30 formed between the upper sides of the vanes 23 is connected with the working chambers by respective ports in the vanes 23, each port being controlled by a spring-loaded valve, Fig. 7 (not shown). Instead of the joints shown in Figs. 3 and 6, between the end 1 and cover 2 and the member A, the joints shown in either Fig. 4, or Fig. 5, may be employed.
Patent GB-1044546-A (GB)
Title: Water-dispersible compositions useful for treating fabrics
IPC: C11D1/62
Filed: 1963-08-09
Abstract: Stable solid water-dispersible compositions are prepared by reacting urea with a cationic nitrogen-containing compound having fabric-softening properties and containing one or two straight-chain organic radicals containing at least 8 carbon atoms in the presence of 2 to 15% by weight of water based on the total composition and optionally a liquid wetting agent, the mixture being agitated until a solid reaction product is formed.  The reaction product may be prepared as flakes.  Specified cationic nitrogen-containing compounds are di-(hydrogenated tallow) dimethylammonium chlorides and sulphates, primary tallow amine, primary hydrogenated tallow amine, tallow 1,3-propylene diamine, oleyl 1,3-propylene diamine, coco 1,3-propylene diamine, di-(soya)dimethylammonium chloride and di-(coco)dimethylammonium chloride.  Specified wetting agents are ethylene oxide-isooctylphenol condensates, fatty alkylolamides and oxyethylated secondary amines.
Patent GB-281304-A (GB)
Title: Improvements in or relating to automatic switches for use in telephone systems
IPC: H04Q3/00
Filed: 1927-03-12
Abstract: 281,304. Associated Telephone & Telegraph Co., (Assignees of Stehlik, R. F.). July 6, 1926, [Convention date]. Drawings to Specification. Automatic exchange systems.-In an automatic switch comprising a number of sets of terminals, the terminals are so dimensioned and disposed that some of them are passed over by their wipers before others are engaged. The switch is described with reference to a system identical with that described in Specification 274.033, in which subscribers' lines have no individual equipment and the switch forming the subject-matter of the present invention is driven constantly over the line terminals of a group, and on finding a calling line delivers as many impulses as are necessary to a preselected no-normal call-finder. The switch tests the lines for busy condition by means of a test wiper which engages its terminal before the line wipers engage theirs, and does not leave it until after they have left them.
Patent GB-670782-A (GB)
Title: Dynamo-electric machine for regulation
IPC: H02K23/02
Filed: 1948-12-06
Abstract: 670,782. Exciting dynamos; boosting. SOC. ITALIANA E. BREDA PER COSTRUZIONI MECCANICHE. Dec. 6, 1948 [Dec. 6, 1947], No. 31576/48. Classes 35 and 38 (iv). By providing similarly excited coils on saturated and unsaturated parts of its field core to give a differential effect, the voltage of a generator can be built up positively or negatively and the voltage variations are amplified by deriving from the armature a supplementary exciting current. The saturated core with its field coil can be replaced by a permanent magnet. As shown in Fig. 1, the opposing windings 1, 2 give no resultant flux at a predetermined value of exciting current but at higher values, winding 2 on the unsaturated core part 5 will more than neutralize the effect of winding 1. The core 5 may carry another winding 17 which may be fed as shown in Fig. 5 when the machine acts as an exciter 18 for a battery-charging generator 15, and the exciter has a winding 10 fed from the armature. The booster 19 for maintaining constant volts across the lamps 21 may be similar to the exciter and driven with it by a motor 22. The machine could also be used as the exciter of an alternator.
Patent GB-188963-A (GB)
Title: Improvements relating to wood working machines
IPC: B27C3/02
Filed: 1921-11-25
Abstract: 188,963. Green, J. Nov. 25, 1921. Trenching; moulding.-In a wood-working machine a frame 4 supports carrier-bars 15, having a rotational adjustment by means of bolts 16 working in curved slots (not shown). The tool, for example a saw 26, together with its driving motor 18 slides on the bars, which are shown in two positions of adjustment. A vertically adjustable. bar 13 serves to clamp the work to the table 3 and to limit the cut. The frame 4 has a rotational adjustment around the central column, and is locked thereon by the hand wheel 8. Two independent vertical adjustments of the frame are provided, one by means of a threaded collar 5, and the other by a hand lever 10 pivoted to the frame and a bar 9 pressing on the collar. The frame is suitably slotted to enable the carrier to be mounted below the level of the table. Grooving, sawing, and spindle moulding are instanced as suitable operations.
Patent GB-209891-A (GB)
Title: A new or improved device for wiping wind-screens of motor road vehicles
IPC: B60S1/14
Filed: 1922-11-20
Abstract: 209,891. Evans, F. Nov. 20,1922. Squeegees.-The arms 10, 11 of a U-shaped metal spring are bifurcated to permit pads 14, 15 to swing freely on horizontal pivots 12, 13 respectively. Instead of a sheet-metal spring a wire spring with bifurcated arms may be employed. The pads may be of rubber or other material secured in backings of channelled form.
Patent GB-968588-A (GB)
Title: Improved semiconductor arrangement
IPC: H01L29/167
Filed: 1960-09-15
Abstract: 968,588. Semi-conductor devices. TELEFUNKEN A.G. Sept. 15, 1960 [Sept. 15, 1959], No. 31743/60. Heading H1K. A semi-conductor device comprises a body containing a base region B of one conductivity type and two zones St, S of opposite conductivity type and extending partly, but not wholly, between the PN junctions is a region D containing lattice defects so that it forms a preferential breakdown region. Both PN junctions are reverse biased so that their space charge regions overlap in the breakdown region D, thus subjecting this region to two opposing electric fields. A source of modulation U ST  is connected to vary the potential of the control zone St and this controls the level at which breakdown occurs in the output circuit comprising a load Ra connected to the " collector " zone S. Germanium, silicon or inter-metallic compounds may be used for the semi-conductor.
Patent GB-137041-A (GB)
Title: Improvements in or relating to Locking Devices for Bolts and Nuts and the like.
Inventor: LOUIS DROISSART
IPC: F16B39/24
Filed: 1919-12-18
Abstract: 137,041. Droissart, L., and Poisson, G., (Assignees of Brasseur, M.). Dec. 24, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Locking nuts. - A conical washer placed in an undercut recess in the bearing face of a nut has a number of projections on its inner edge and is screwed on to a bolt together with the nut. When flattened by pressure of the nut, the washer A fills the recess and the projections grip the bolt, which may have recesses to receive them.
Patent GB-1466564-A (GB)
Title: Aperture plug
IPC: F16J13/00
Filed: 1974-05-30
Abstract: 1466564 Closure plugs for apertures UNITED CARR Ltd 30 May 1974 [12 June 1973] 31937/76 Addition to 1466563 Heading F2H A method of sealing a panel aperture 30, e.g. a paint drain hole in a vehicle body, comprises the steps of taking a metal plug 10 having a plate portion 11 to close the aperture, a flange portion 20 to overlie the surface of the panel 31 adjacent the aperture 30, and a sealing member 23 or 26 of resilient or deformable, heat bondable material located on the side of the flange 20 to face the panel, placing the plug over the aperture so that the plate portion closes the aperture and the sealing member is trapped between the flange and the panel, heating the plug to a temperature sufficient to soften the sealing member, and cooling the plug to bond the sealing member to the panel and the plug. The sealing ring 23, e.g. of P.V.C. may be bonded to the flange 20 during production of the plug. The alternative sealing ring 26 (Fig. 6) of low density polyethylene has a web 28 with a resilient retaining lip 29 to be snapped over the periphery of the plug, or may be secured with adhesive. The plug has two or more resilient legs 12, 13, 14 which can be snap-engaged through the aperture 30 to draw and hold the plate portion 11 on to the panel prior to bonding. Each leg is formed by folding a radial extension of the plug back against the flange and plate portions and bending a part of the folded back extension away from the plate portion to project from a position radially inwards of the periphery of the plug. Each leg has an outwardly inclined retaining portion 15 and an inwardly inclined lead-in portion 16.
Patent GB-300639-A (GB)
Title: Improvements in vanity cases and similar receptacles
IPC: A45D33/00
Filed: 1928-11-02
Abstract: 300,639. Groove Lock Co., Inc., (Assignees of Leberman, H.). Nov. 17, 1927, [Convention date]. Fastenings.-A vanity or other case has the hinged lid 2 retained in the closed condition by a member 6 slidable on the body 1 to engage a rib 5 on the reduced portion or flange 4 of the lid. The rib 5 enters the body 1 and the member 6 has bent ends 8 one engaging a slot 7 in the body and the other a recess 9 in the rim thereof; the rib has a cut-away recess 11 so that, when the member 6 is slid to one end of the slot 7 in line with the recess 11, the lid can be opened. A tray 12 having an outwardly-projecting flange 13 may be disposed within the body which is bent slightly inwards at the hinge 3 to extend over the flange 13. A mirror 15 may be secured in the lid 2 by a retaining ring 16 having a flange 17 to overlap the mirror and a resilient rim 18 to engage the flange 4 of the lid.
Patent GB-878501-A (GB)
Title: Improvements in hydraulic tracer valves
Inventor: CHUBB ALEXANDER ALBERT
IPC: B23Q35/36
Filed: 1956-10-20
Abstract: 878,501. Copy-milling; machine-tool details. FAIRBAIRN LAWSON COMBE BARBOUR Ltd. Oct. 2, 1957 [Oct. 20, 1956], No. 32012/56. Class 83 (3). An hydraulic tracer valve comprises damping means acting on a moving part of the valve over a restricted portion of the operative travel of the part. The valve has a damping chamber 14 with a conically ended screw for adjusting an orifice 21. The valve shuttle is biased downwardly by a spring 15 adjusted by a screw 16. The damping means is cut out when the valve shuttle 1 uncovers a passage 22. An adjusting device may be provided, acting on the lower part of the shuttle, whereby the shuttle may be raised to allow rapid withdrawal of the cutter from the work; at the same time, lifting of the shuttle allows the damping chamber to be replenished with fluid. The stylus may be balljointed. The valve may be mounted in a machine wherein either the cutter or the tracer is movable.
Patent GB-629921-A (GB)
Title: Improvements relating to lead-acid accumulators
IPC: H01M4/68
Filed: 1947-12-04
Abstract: An alloy for accumulator grids consists of lead, tin, and selenium containing from 4.75 to 5.75 per cent of tin and from 0.05 to 0.1 per cent of selenium.  In an example the alloy contains 94.925 per cent lead, 5 per cent tin, and 0.075 per cent selenium.  In making the alloy the tin and selenium are first alloyed together and the mixture then added to the lead.
Patent GB-1392744-A (GB)
Title: Support device for a hollow electrical conductor
IPC: H02G5/06
Filed: 1972-07-07
Abstract: 1392744 Supporting conductors C GEE ALSTHOM 7 July 1972 [12 July 1971] 32032/72 Heading H2C A securing device 7 for a hollow electric conductor 8 in a coaxial sheath 1 is provided with a base 2, insulator 3 secured thereto by bolt 4 and is tapped in its upper portion at 5 to receive support rod 15, which passes through an aperture 9 in the conductor 8. The dimensions of substantially rectangular aperture 9 are slightly larger than that of shoe 11, which rests on dish 12, spring 13, and is retained by screw 14 which allows some movement of shoe 11 within dish 12 under the action of spring 13. The insulator assembly 7 is secured to the conductor 8 by firstly inserting upper shoe 18 so that its longitudinal axis is parallel to the longitudinal axis of aperture 9, and the lower shoe 11 is clamped against the outer surface of conductor 8, its axis at 90 degrees to that of shoe 18. Its dimensions being smaller, shoe 18 may be passed through aperture 9 and its removal prevented by rotation through 90 degrees, while lower shoe 11 is held stationary, against conductor surface 8, the cylindrical axis of which is perpendicular to the longitudinal axis of the shoe 11. A pull is exerted so that the upper shoe descends, and its heel 19 engages in aperture 9, locking upper shoe 18 in position while the insulator is rotated a further 90 degrees, in a direction such that the screw fit of rod 15 in socket 5 tends to be tightened. Stud 21 in rod 5 is thereby aligned with a groove (20) in the heel 19 (see Fig. 2, not shown), and, under the action of spring 17, engages therein, preventing further rotation of upper shoe 18 or the insulator. Removal is substantially similar after unscrewing the insulator 3 from rod 5. In a further embodiment (Fig. 5, not shown), rod (15) extends diametrically completely across conductor 8 and passes through a further aperture opposite the first aperture. The upper shoe is disposed on the external surface of the conductor and the lower shoe's position is unchanged except for a heel (24) extending into the aperture (9).
Patent GB-1144838-A (GB)
Title: Resin-coated electric wire
IPC: H01B3/44
Filed: 1967-07-12
Abstract: 1,144,838. Vinyl Chloride/olefin copolymers. NIPPON CARBIDE KOGYO K.K. 12 July, 1967 [12 July, 1966], No. 32139/67. Heading C3P. Compositions comprising a copolymer of vinyl chloride with 13 to 40 weight per cent of a C 2-4  mono-olefin and 0À5 to 3À0 weight per cent, based on the copolymer, of dibasic lead phosphite are used for coating wires. The preferred mono-olefin is ethylene. The compositions may also comprise other stabilizers, e.g. tribasic lead sulphate; lubricants, e.g. butyl stearate, mineral oil and low molecular weight polyethylene; antioxidants, e.g. triphenyl phosphite and bisphenol A; U.V. light absorbers, e.g. benzophenone and benzo-triazole derivatives; and pigments and fillers, e.g. calcium carbonate, barium sulphate, calcined kaolin, titanium dioxide and phthalocyanine blue. Examples describe the preparation of copolymers by emulsion polymerization in the presence of ammonium persulphate, sodium sulphite, sodium dodecylbenzene sulphonate, and optionally methanol, with continuous withdrawal of ethylene to maintain constant pressure and with stepwise addition of emulsifier and catalyst.
Patent GB-1114084-A (GB)
Title: Process for producing inosinic acid
IPC: C12P19/32
Filed: 1966-07-18
Abstract: Inosinic acid is prepared by culturing an inosinic acid-producing micro-organism belonging to the genus Arthrobacter in an aqueous nutrient medium containing a source of carbon and nitrogen under aerobic conditions at a temperature in the range 20-40 DEG  C. and a pH of 4-9 in the presence of essential nutrients and hypoxanthine or a derivative thereof, e.g. inosine, or a natural substance containing hypoxanthine.
Patent GB-317679-A (GB)
Title: Chain-mortising attachment for drilling-machines
IPC: B27F5/06
Filed: 1928-11-05
Abstract: 317,679. Palmu, C. Nov. 5, 1928. Broaching.-A chain-mortising machine is constructed as an attachment to a drilling-machine. The chain runs over upper .and lower sprockets 24, 28 the upper being removably secured on a shaft carrying a bevel gear 13 on a rod vertically adjustable at 29 in an arm 7 of a vertically movable frame 6, guided in brackets 2, 3 attached to the frame 1 of the drilling-machine. The spindle 11 is arranged for direct connection to the drilling- machine spindle. Some of the chain links carry .cutters of the general form 39, Fig. 15.
Patent GB-1120929-A (GB)
Title: Improvements in or relating to hand tools
Inventor: LEARAD ARTHUR
IPC: B23D29/02
Filed: 1967-07-13
Abstract: 1,120,929. Pruning scissors; pliers, cutters &c. HAND TOOLS Ltd. 13 July, 1967, No. 32254/67. Headings B4B and B4W. In a pair of tinman's or jeweller's snips in which each handle 2, Fig. 2, is formed with an integral blade 3 which extends from a shoulder 4 on the handle, the shoulder is formed as an arc struck about the axis of the pivot securing the handles together and the transition from the handle width to the blade width is formed as an arcuate face 6 also struck about the pivot between the handles. Similarly, in pruning scissors each handle 9, Fig. 4, has an arcuate shoulder 10 and each blade 11 has an arcuate face 12, the shoulder 10 and face 12 being concentric about the pivotal axis of the scissors.
Patent GB-826083-A (GB)
Title: Improvements in or relating to undergarment with reinforced suspender tabs
IPC: A41C1/04
Filed: 1957-10-16
Abstract: 826,083. Girdles. INTERNATIONAL LATEX CORPORATION. Oct. 16, 1957 [Oct. 22, 1956], No. 32320/57. Class 141 A deposited latex girdle has integral suspender tabs 11 reinforced with embedded strips 13 of bias-cut knitted nylon &c. The strips 13 are so arranged that their direction of maximum stretch A-A is inclined as shown at an angle of between 30 and 60 degrees with their longitudinal axis C-C. Each strip 13 is formed at one end with an enlargement 13a which is embedded in the adjacent area 16 of the body portion 14; the deposited latex in the areas 16 is of increased thickness. Specification 636,344 is referred to.