baber/WOPTO huggingface dataset:
Patent GB-1512586-A (GB)
Title: Device for forcing pipes through the ground
IPC: E02F5/18
Filed: 1976-10-28
Abstract: 1512586 Boring earth etc. A JOHANSSON 28 Oct 1976 [24 Nov 1975] 44796/76 Heading E1F A device for forcing a pipe 4 into the ground 5, e.g. under a roadway, includes a channel shaped support and guide means 3 which is pivotally connected, in use, to the bucket arm 2 of an excavator 1, a hydraulic ram 6 detachably connected to the support and guide means 3 for thrusting the pipe 4 into the ground 5, and a hydraulic ram 8 for adjusting the angle of inclination of the support and guide means 3. The ram 6 is detachably connected to the support and guide means 3 by a bolt (not shown) passing through one of a series of holes 11 along each side of the guide means 3, the spacing of the holes 11 being equal to the stroke of the ram 6. After each stroke of the ram 6 the bolt 12 is removed, the ram 6 moved forwards and the bolt 12 inserted in the next pair of holes 11. The ram 6 is suspended in a carriage having wheels 14 which run along the support and guide means 3. Rollers 15 are provided at the front end of the support and guide means 3 to guide the pipe 4 which is provided with a pointed end member 16. The ram 6 is powered by hydraulic fluid from the excavator via valve 9. When inserting a pipe 4 under a roadway the device is located in a hole previously dug by the bucket excavator.
Patent GB-1478113-A (GB)
Title: Development promoting compounds for silver halide photography
IPC: G03C1/053
Filed: 1973-09-25
Abstract: 1478113 Photographic development accelerator AGFA-GEVAERT 7 Aug 1974 [25 Sept 1973] 44829/73 Heading G2C A photographic element having a developable gelatino silver halide emulsion layer is developed in the presence of a polymer containing units of the Formula: wherein R 1  is H or CH 3 , X is O or NH, m is an integer of 1 to 5 and R 2  is a C 1 -C 5  alkyl group which may be substituted by sulpho in acid or salt form when the polymer is a homopolymer, the said polymer being present in the developer or in the gelatino silver halide emulsion, having been incorporated into the latter after the chemical ripening thereof. The polymer acts as a development accelerator and may be a homopolymer e.g. poly-(#-ethyl-thioethyl acrylate) latex, or a copolymer of e.g. #-ethylthioethyl acrylate with acrylic acid or acrylamide, or #-ethylthioethyl acrylamide with acrylamide or acrylic acid, or a terpolymer of #-ethylthioethyl acrylate, ethyl acrylate and #-sulphoethyl methacrylate. The polymers are especially useful in colour processing when added to the colour developer or to the emulsion of a radiographic colour element.
Patent GB-1221902-A (GB)
Title: Process for production of pure hydrocarbons
Inventor: WEHNER KLAUS
IPC: C07C7/08
Filed: 1969-09-11
Abstract: 1,221,902. Solvent extraction of aromatics. LEUNA-WERKE " WALTER ULBRICHT " VEB. 11 Sept., 1969, No. 44863/69. Heading C5E. Aromatic hydrocarbons are separated from non-aromatic hydrocarbons by selective extraction and/or extractive distillation using as solvent a N-substituted-#-caprolactam, optionally in admixture with an auxiliary solvent. Suitable #-caprolactams are the N-methyl, N-ethyl, and N-#-cyanoethyl) derivatives.  Suitable auxiliary solvents are water, ethylene glycol and diethylene glycol. Examples 1-4 describe separation of benzene from n-hexane by solvent extraction; Examples 5 and 6 describe separation of benzene and toluene from an aromatic/non-aromatic mixture by solvent extraction (Example 5) or by solvent extraction followed by extractive distillation (Example 6).
Patent GB-1440415-A (GB)
Title: Double twisting machine with knotting device
IPC: B65H69/04
Filed: 1974-10-17
Abstract: 1440415 Knotting on 2:1 twisting machine; knotters PALITEX PROJECT-CO GmbH 17 Oct 1974 [17 Oct 1973] 45077/74 Headings D1C DID and D1F A double twisting machine is provided with a bracket for a knotting device adjacent the top of a bobbin on the machine, the knotting device being actuated by an operating element and a transmitter being provided in the circuitry of the control unit for starting and stopping the spindle, the knotting device when located on the bracket in the knotting position being linked to a transmitter control element which activates or switches the transmitter for starting operation of the spindle. The operating element of the knotting device can be a rocking lever with two arms 24. The rocking lever can activate the transmitter 30 by means of a vertically movable plunger 31. The operating plunger 31 can be deflected from the spindle stop position by the rocking lever 24 to the spindle start position. The knotter can be mounted on a travelling servicing carriage for the double twisting machine. Specification 1372982 is referred to.
Patent GB-1057819-A (GB)
Title: Improvements in or relating to couplings
IPC: F16D3/12
Filed: 1963-11-15
Abstract: 1,057,819. Resilient couplings. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Nov. 15, 1963 [Nov. 17, 1962], No. 45217/63. Heading F2U. An input shaft 10 of a change-speed gear-box is yieldingly connected to a gear hub 17, rotatably mounted thereon, by a ring of conical rollers 18 each engaging a pair of tapered recesses, one set of recesses 16a being in a ring 16 positively connected by dogs 7 to the hub 17, while the other set 14a is formed in a ring 14 mounted for axial sliding movement on a bush 11 splined fast on the input shaft 10 and carrying radial rollers 13 which engage axial slots 15 in the ring 14 which abuts a disc 20 supported by pre-stressed Belleville springs 22 bearing on a disc 21 which can be axially adjusted by a nut 25 to limit the resilient movement of the ring 14 under torque loading and to vary the spring pre-stressing. The rollers 18 and 13 are radially retained by rings 24 and 23 respectively.
Patent GB-1194012-A (GB)
Title: Improvements in or relating to Corpuscular Beam Microscopes
IPC: H01J37/20
Filed: 1967-10-05
Abstract: 1,194,012. Electron microscopes. MAXPLANCK-GESELISCHAFT ZUR FORDEHUNG DER WISSENSCHAFTEN E.V. 5 Oct., 1967 [27 Feb., 1967], No. 45413/67. Heading H1D. In a corpuscular beam microscope comprising a beam source Q, means I, II for focusing the beam, a specimen P disposed substantially in the transverse plane at which the field strength of an electromagnetic objective lens O has a maximum value, wherein the front field of said objective lens acts as a condenser lens which forms an image of a field-limiting aperture B in the object plane of the objective lens field, said aperture B being so disposed relative to the entry pupil plane r 2  of the objective lens that the beam has a high current density in said plane, adjusting means 1, 2, 3 are provided for moving the specimen P axially whilst maintaining the excitation of the objective lens constant, the range of movement being such that a specimen to be examined can be moved in the axial direction to bring any specimen plane of interest into the object plane and therefore into the plane of the image of the aperture B. The adjusting means comprise an axial slide 1 with a rack 2 of teeth engaging a gear-wheel 3 on a drive shaft 4. Alternatively, screw threads may provide axial adjustment by rotation of the slide. In an alternative arrangement (Fig. 2, not shown) providing transverse and axial adjustment, the specimen diaphragm is mounted for transverse movement in a holder which is pivoted at one end and has at the other end an inclined plane engaged by a push-rod. The final " combined " image may be projected by a further lens or lenses on to a fluorescent screen or into a television receiver tube.
Patent GB-1003384-A (GB)
IPC: G01K5/70
Filed: 1963-11-18
Abstract: 1,003,384. Thermometers. GAYDELL Inc. Nov. 18 1963 [NOV. 19 1962; June 10, 1963], No. 45446/63. Heading G1D. [Also in Division A4] A spoon having a built in thermometer comprises a bowl 11 connected to the handle 21 by a hollow stem 31, and a shaft 35 which extends along the stem 31 into a hollow core 22 in the handle, the shaft 35 being movable relative to the handle in response to temperature changes at the bowl 11, the movement being controlled by differential expansion of two parts of different coefficients of thermal expansion, and movement of the shaft 35 controlling relative movement of a calibrated scale and an index visible through a window 23 of glass or a plastics material in the handle 21. The bowl 11 is preferably of stainless steel and the thermometer comprises a spiral bimetallic element 37 which causes rotation of the shaft 35 as the temperature changes. The shaft 35 carries a spool 42 on a hub 43. A temperature scale is marked on the spool 42 and this is visible through the window 23 which carries an index line (not shown). In alternative embodiments the spool may be carried at the end of the shaft 35 remote from the bowl 11 and may be viewed through a thimble shaped window forming the end of the handle, or the spool may be replaced by a pointer mounted on the end of the shaft 35 and moving over a scale mounted on the end of the handle or on a window forming a cover for the end of the handle. The bimetallic element may be made of Registered Trade Mark "Invar" or a ceramic on the one hand and a metal such as brass on the other.
Patent GB-1016153-A (GB)
Title: An improvement in the devices for limiting the firing arc of guns, machine guns and the like
IPC: F41A17/08
Filed: 1961-12-20
Abstract: 1,016,153. Limiting the firing arcs of guns. BREDA MECCANICA BRESCIANA S.p.A. Dec. 20, 1961 [Dec. 29, 1960], No. 45568/61. Heading F3C. An interrupter device for limiting the firing arc of a gun, e.g. to avoid hitting parts of a ship's structure, comprises a cylinder 3 on which is mounted a cam 2 relating to the restricted field of fire and a feeler 1 associated with the cam to control a firing circuit breaker 6 or mechanical fire control means, the cam cylinder 3 being rotated on its shaft 12 by gearing and a shaft X rotated with azimuth movement of the gun and the cylinder 3 being moved axially on the shaft 12 by a forked lever 4 moved by elevational movement of the gun. In order to allow for the time delay between actuation of the firing mechanism and the time at which the projectile leaves the barrel during rapid angular movement of the gun, the feeler 1 is displaced relative to the cam 2 (and the fire of the gun thus interrupted) in accordance with the angular velocity of the gun. This is done by mounting the feeler 1 on a frame 7 freely rotatable on the shaft 12 and rotating the frame 7 by a pull-rod 8 connected to a control arm 9 of a variable speed drive 10 which controls the angular velocity in azimuth of the gun, and by connecting the forked lever 4 to the variable speed drive for the elevational movement to effect axial adjustment of the cam 2 relative to the frame in accordance with the angular velocity of the gun in elevation.
Patent GB-1284220-A (GB)
Title: Packaging unit for elongated objects
Inventor: LIEDKE WERNER
IPC: B65D71/70
Filed: 1970-09-25
Abstract: 1284220 Packaging bobbins GLANZSTOFF AG 25 Sept 1970 [27 Sept 1969] 45720/70 Heading B8C Bobbins 3 are mounted between upper and lower plates 1, 2 which are then enclosed in a shrinkable film. The bobbins may be engaged by studs 13 extending through holes in the plates which may be of corrugated cardboard or have a cover plate 11. Alternatively the plates may be of plastics and have beads 7 or studs to engage the outside or inside of the bobbin. The film may be perforated.
Patent GB-1049270-A (GB)
Title: Recovery of monochlorodimethyl ether
Inventor: BACHMANN REINHARD
IPC: C07C43/12
Filed: 1965-10-29
Abstract: Monochlorodimethyl ether is recovered from spent chloromethylation solutions by entrainment in a stream of inert gas which is passed through the solution at 0-60 DEG  C.  The spent solutions which are contaminated with, e.g., catalysts and by-products are, e.g., those resulting from the chloromethylation of divinyl compounds and polymers thereof.  Specified inert gases are air, nitrogen and hydrogen chloride. The preferred gas is hydrogen chloride as the resulting mixture of hydrogen chloride and monochlorodimethyl ether, which also contains some methylol recovered from the spent solution, can be used in the synthesis of further monochlorodimethyl ether by reaction with additional methylol or methanol and formaldehyde or a polymeric formaldehyde.  Alternatively, the monochlorodimethyl ether can be recovered directly by cooling the emerging gas stream. Examples relate to the use of hydrogen chloride.
Patent GB-947694-A (GB)
Title: Shaking tables
IPC: B07B1/30
Filed: 1962-12-05
Abstract: 947,694. Shaking tables for ore concentration. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. Dec. 5, 1962 [Dec. 6, 1961 (2)], No. 45905/62. Heading B2H. A shaking-table has a deck 15 supported on part-circular end-pieces 6 which are interconnected by struts 13 and are rockable about their centres of curvature for altering the degree of scale slope of the table. The struts are in tension and compression only and are interconnected by a plate 14. Resilient rollers 3 are mounted on a frame of I-girders 1 and engage in channels which locate the end-pieces 6 endwise and enable them to be turned on the rollers 3 by a handwheel 12, worm 10 and rack 11. The end-pieces support cross-beams 4 with pockets 16 which have pins 17 (see Fig. 4) mounted in them perpendicular to, but not co-planar with, the axis through the centres of the end-pieces 6. The longitudinal deck 15, Figs. 1 and 2 (not shown), is supported on links 18 wich are pivoted on the pins 17 and carry bolsters 19 which engage in metal sockets 20 on the underside of the deck. The deck is shaken by means 22 driven by a motor 23. The table is shaken by sliding bars 26, Fig. 5, which connect to a cross-piece 29 movable between slides 30 and 31 against a spring 32. An eccentric 33 drives a pitman 35 which is connected by a link 37 to the cross-piece 29 and by a link 38 to an adjustable abutment 39 which can slide on a screw to adjust the throw. For larger adjustments the link 37 is replaceable by links of other lengths, Figs. 6 and 7 (not shown).
Patent GB-1144369-A (GB)
Title: Laminated windscreen
IPC: C03C27/12
Filed: 1966-10-14
Abstract: 1,144,369. Laminated windscreens. P.P.G. INDUSTRIES Inc. 14 Oct., 1966 [18 Oct., 1965], No. 45910/66. Heading B5N. A laminated windscreen comprises two glass plies 10, 11 and at least one plastics interlayer ply, e.g. 17, 18, there being less adherence between at least one pair of adjacent plies in at least a portion of the central area 13 of the windscreen than there is in the marginal area "m." In the embodiment shown, adhesion between the plies 17, 18 in the area 13 is reduced by use of a thin polyvinyl fluoride film smaller in area than the plies 17, 18 or by applying an emulsion of polytetrafluoroethylene or a silicone, e.g. methyloctadecyldichlorosilane, by brushing, flowing, or spraying on one of the plies, or by chemically treating a portion of the surface of one ply. The plies 17, 18 are of polyvinyl butyral. In other embodiments one ply of polyvinyl butyral is present and an area 13 is provided between it and either or both of the glass plies 10, 11, or three plies of polyvinyl butyral are present, an area 13 being present at the interface between each pair of plastics plies. Several possible shapes for the area 13 are described. Instead of using preformed plies of polyvinyl butyral the interlayer may be cast and cured in place using the materials and method disclosed in Specification 1,142,933. To manufacture a windscreen using preformed interlayer plies, the glass plies are cut and bent to shape; the area or areas 13 defined by spraying, or insertion of a polyvinyl fluoride film; the glass and plastics plies assembled manually and pressed to remove excess air; excess polyvinyl butyral cut away; the assembly inserted in a bag including an electric heater; the bag evacuated and heat applied to seal the edges of the assembly; the vacuum removed and the assembly taken from the bag; the assembly placed in oil in an autoclave; and further heat and pressure applied to form the complete windscreen. Preferably one of the polyvinyl butyral layers has a moisture content of 0À4 to 0À55% by weight to give it high penetration resistance. This is achieved by blowing on to the layer an atmosphere of 22% relative humidity at 167 F. and then passing it through two water baths at different temperatures.
Patent GB-1015785-A (GB)
Title: New dyestuffs containing 2-chlorothiazole residues
IPC: C09B62/343
Filed: 1961-12-22
Abstract: The invention comprises dyes containing in their molecule at least one sulphonic acid group and at least once the reactive grouping of formula <FORM:1015785/C4-C5/1> wherein A is a trivalent -C=CH group or benzene residue.  The dyes may be prepared by condensing a suitable dye containing at least one hydroxy, mercapto or amino group with a sulphochloride of formula <FORM:1015785/C4-C5/2> or by condensing a dyestuff sulphochloride with an amine of formula <FORM:1015785/C4-C5/3> The amines may also be diazotized and coupled in the usual way to form azo dyes.  The dyes may be used to colour hydroxyl- or amino-group containing materials, in the presence of an acid-binding agent.  In examples, the preparation of mono- and dis-azo, stilbene-azo, metallized azo (copper, chromium and cobalt complexes) and anthraquinone dyes is described.
Patent GB-1364092-A (GB)
Title: Preparation of tubular members of plastics material
IPC: B29C48/90
Filed: 1971-10-04
Abstract: 1364092 Dielectric heating BRAAS & CO GmbH 4 Oct 1971 [3 Oct 1970] 46149/71 Heading H5H [Also in Division B5] To ensure uniform capacitative heating of a cut length of an extruded rigid P.V.C. tube 9 (see Divisions B4-B5) preparatory to a forming process, the tube is transversely expanded by internal compressed air and cooled, during passage through a sizing die downstream of the extrusion head, at dimensions from which it shrinks into contact around a capacitative heating member 21, 18 when initially heated thereby, prior to heating to the required forming temperature. The rigid polyvinylchloride preferably contains an electrically conductive stabilizer such as dibasic lead stearate, or tribasic lead sulphate, or calcium stearate, and further additives may comprise compounds of tin, manganese barium and cadmium, and inorganic pigments, e.g. iron oxide. The capacitative heating apparatus comprises an outer earthed ring electrode 20, surrounding a live electrode 21 disposed within a polytetrafluoroethylene sheath 18 on to which the tube 9 shrinks when initially heated. The heating is effected from a high frequency generator which is energized at one third of its maximum power for the initial heating of the tube 9, e.g. to 90 C., to cause it to shrink on to the sheath 18. The generator is then actuated at maximum power, e.g. 10 kw., until the tube 9 has been heated, e.g. to 110 C., whereupon the power is reduced, e.g. to 20% of maximum, for continued heating of the tube 9, e.g. to 180 C.
Patent GB-1438139-A (GB)
Title: Resin composition containing polyphenylene ehter
IPC: C08L25/00
Filed: 1973-10-03
Abstract: 1438139 Polyphenylene ether compositions; styrene polymer compositions MITSUBISHI GAS CHEMICAL CO Inc 3 Oct 1973 [4 Oct 1972] 46230/73 Headings C3G C3R and C3P A thermoplastic blended resinous composition comprising (a) 10 to 40% by weight of a polyphenylene ether having the formula wherein R<SP>1</SP> and R<SP>2</SP> are the same or different, and each represents a methyl or ethyl group, and n is at least 85, (b) 10 to 30% by weight of high styrene rubber composed of units derived from styrene and units derived from a conjugated diene compound, in which the content of the units derived from styrene is 40 to 60% by weight, and (c) 50 to 75% by weight of a rubber-modified chlorostyrene polymer composed of units derived from a conjugated diene compound and units derived from chlorostyrene, in which the content of the units derived from the conjugated diene compound is 2 to 15% by weight, the total of the proportions of these components being 100% by weight. In examples blends are made of (a) polyphenylene ethers, (b) a block copolymer of styrene and butadiene, an elastomer comprising isoprene and styrene units, and mixtures of a block copolymer of styrene and butadiene with rubbermodified styrene-chlorostyrene copolymer, and (c) graft copolymers of chlorostyrene and styrene containing polybutadiene, a copolymer of chlorostyrene and α-methylstyrene containing polybutadiene and a polychlorostyrene containing polybutadiene; other ingredients of the compositions are titanium oxide, 2-mercaptobenzothiazole zinc salt, 2,6-di-t-butyl-4-methylphenol, wax, decabromobiphenyl, antimony oxide and triphenyl phosphate.
Patent GB-1088244-A (GB)
Title: Thin magnetic film data storage
IPC: G11C7/00
Filed: 1964-11-13
Abstract: 1,088,244. Magnetic storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 13, 1964 [Nov. 27, 1963; Dec. 31, 1963], No. 46267/64. Heading H1T. [Also in Division H3] Bits of information are stored by remanent magnetic states lying respectively in the hard and easy axis directions of a magnetic thin film member, the film member having substantial angular dispersion (or formed of two such films with their easy directions at an acute angle as described in Specification 2359/67 so that a sufficient magnetic field approximately in the overall hard direction produces a stable remanent state in that direction due to interlocking of the magnetic vectors of adjacent domains. Unless ternary storage is required only unipolar bit drives need be provided. Fig. 8 shows a matrix in which a " 0 " is stored in the form of a stable remanent state in the hard direction by a pulse in a selected word line 3. A " 1 " is stored by coincident pulses in a selected word line 3 and one (or more) selected bit line 4, the pulse in the bit line outlasting the pulse in the word line and being insufficient, if used alone, to produce an easy direction remanent state. Read-out is effected by a pulse in the appropriate word line producing in sense lines 5 an appreciable output only where a " 1 " is stored and may be destructive or non- destructive. The angular dispersion in the magnetic film may be due to non-uniformity of thickness which may be secured by varying the substrate temperature during deposition to vary the grain size. Details of the substrate and of the deposition of the film are given.