baber/WOPTO huggingface dataset:
Patent GB-843448-A (GB)
Title: Apparatus for geophysical prospecting
Inventor: MCLAUGHLIN GEORGE HARRISON
IPC: G01V3/08
Filed: 1956-09-18
Abstract: 843,448. Electric tests. NUCOM Ltd. Sept. 18, 1956, No. 28550/56. Class 37. The presence of magnetic or conductive deposits is determined by a pair of magnetically cored coil fixed relatively angularly and feeding amplifying and filtering circuits so as to respond transient magnetic field variations. The Specification indicates that in the absence of such deposits the transient magnetic fields are horizontally polarised and that the presence of such deposits introduces some degree of vertical polarisation. Accordingly on " A" coil and a " B " coil, both in two parts are mounted at right angles to each other on a rotatable axis 4. Each coil is mounted on a former consisting of iron laminations 2 and wooden spacers 3. The coils are tuned to frequencies of 450 and 500 cycles/sec respectively by condensers 7 in order to avoid coupling and each coil feeds an amplifier 8a, attenuator 9a, further amplifier 10a, filter 11a, rectifier 12a and integrator 13a and the outputs of the two amplifiers are compared in a differential unit 14 and indicated on a meter 15. A linometer 23 is mounted between the coils. In use, if no conductive or magnetic deposits are present the difference output of the two coils will be zero when they are in the position shown. A distorting deposit will mean that a minimum output from the coils will occur in a different position as indicated by the linometer. Specification 825,046 is referred to.
Patent GB-1176302-A (GB)
Title: Hermetically Sealed Motor Compressor
IPC: F04B39/12
Filed: 1968-06-14
Abstract: 1,176,302. Pipe couplings. DANFOSS A/S. 14 June, 1968 [6 July, 1967], No. 28568/68. Heading F2G. [Also in Division F1] The pressure pipe 8 of a motor compressor (not shown) resiliently mounted in a casing 1, 2 is connected to an outlet conduit 10 by means of a resilient element 11. The resilient element is of rubber or plastics and has a peripheral groove into which the outlet 10 is pressed. The pressure pipe 8 may be provided with a cross. pin or a flange 9 to prevent it being pulled out of the conduit 10.
Patent GB-616689-A (GB)
Title: Improvements in engine mountings
IPC: F16F3/087
Filed: 1946-09-24
Abstract: 616,689. Resilient mountings. FORD MOTOR CO., Ltd. Sept. 24, 1946, No. 28578. Convention date, Oct. 26, 1945. [Class 108 (iii)] An engine mounting comprises a resilient member 5 of concave-convex form which is disposed between a support 6 and a supported member 11 with its convex surface disposed towards the supported member 11, and an annular retaining member 9, which is bonded to the member 5, is arranged with its outer periphery in contact with the inner surface of a base cup 7; between the supported member 11 and the resilient member 5 is a spacer plate 15 of flat disc-like form which is smaller in diameter than the resilient member 5 and has its peripheral portion curved away from the resilient member so that under load the rounded portion of the spacer is indented into the convex portion of the resilient member, the displaced resilient material being forced into an air space 28 beneath the resilient member and out between the spacer 15 and the annular member 9. The supported member 11 rests on the spacer 15, and is secured to the support 6 by a bolt 8 passing through the spacer 15 and rubber member 5. The spacer 15 bears against an abutment 27 on the bolt 8, and a lower resilient member 16 is interposed between the support 6 and head and shank of the bolt 8; this member 16 surrounds the shank of the bolt 8; and a flanged ring 23 bonded in the upper end of the member engages a central hole in the cup member 7. An air space 26 is provided between part of the bore of member 16 and the bolt 8. The cup 7 has an inner flange 12 for fixing in a hole 20 in the support 6, and. a bearing plate 10 is provided in the top surface of the member 5 for engagement by the spacer plate 15.
Patent GB-774139-A (GB)
Title: Objects having sintered iron bases and a process for the manufacture thereof
IPC: C22C33/02
Filed: 1954-10-06
Abstract: Objects such as pistons, piston rings or bearings are formed by sintering an iron containing Mn 2.0-11.0 per cent and having a ferritic or martensitic structure.  The alloy may contain C 0.05-2.0 per cent.  One or more of the following elements may also be present Cr 0.4-3.0 per cent, Ni 0.4-4.0 per cent, Co 0.4-4.0 per cent, W 0.4-5.0 per cent, V 0.1-1.0 per cent and Mo 0.1-1.8 per cent.  The objects may be hardened by conventional quench-hardening precipitation-hardening, carburizing or nitriding.  Quenched objects may be tempered between 250 DEG C. and 700 DEG C.  The objects may be cold worked superficially or throughout their cross-section.  In forming the objects 2-25 per cent of a hard solder may be added to bond the particles.
Patent GB-738664-A (GB)
Title: Improvements in conveying apparatus
Inventor: ADKINS BENJAMIN RATCLIFFE
IPC: B65G33/04
Filed: 1952-11-14
Abstract: 738,664. Screw thread trolley-propulsion systems. LEWIS-ADKINS, Ltd. Nov. 12, 1953 [Nov. 14, 1952], No. 28807/52. Class 104 (2). A conveyer apparatus in which trucks are propelled along a track by a rotary screwthreaded shaft of constant or varying pitch engaged by a member attached to each truck has feeder means adjacent an end of the screw which engages a manipulated or free-running truck so as to move the truck in synchronism and phase with the shaft and place the member in engagement with the screw thread. The feeding means comprise a wheel 1 having a plurality of peripherally mounted spring-loaded jaws 2 and is driven through a worm 8 and worm wheel 10 and spur gears from a shaft 5 carrying the helical rail 6. The trolley 12 mounted on wheels 17 running on an I-shaped girder 18 carries a pair of rollers 13 on each side of its U-shaped frame 20 and is driven by one pair of the rollers 13 engaging the rail 6 therebetween. The speed of the wheel 1 is such that the trolley 12 is moved forward, by a pin 15 mounted thereon engaging a recess 7 in the wheel 1, at a rate corresponding to the pitch of the rail 6 at the feed-in end thereof. The pitch of the rail 6 is decreased at the feed-in end. The recesses 7 are arranged around the periphery of the wheel 1 at the same or an integral multiple of the pitch of the rail 6 at the feed-in end thereof. Bumpers 16 provided on each trolley 12 have a bumper-to-bumper length equal to an integral multiple of the pitch of the feed-in end of the rail 6. A wheel 21 mounted on the trolley 12 engages the underside of the rail 18. The frame 20 is apertured at 22 on each side to prevent the fouling of the lower flange of the track 18 on curves. To prevent sparking the working faces of the jaws 2 and the wheels 17 may be of a tough non- metallic material such as is used for brake linings. The track 18 may be downwardly inclined towards the feed-in end of the rail 6. The wheel 1 may be replaced by a continuous belt or chain carrying the feeder means on its periphery. Specifications 27682/11, 246,205, [both in Class 104 (ii)], and 738,694 are referred to.
Patent GB-724269-A (GB)
Title: New or improved turnover moulding machine
IPC: B22C21/10
Filed: 1952-11-14
Abstract: 724,269. Moulds; moulding machines- BUDERUS'SCHE EISENWERKE. Nov. 14, 1952 [Nov. 17, 1951], No. 28831/52. Class 83 (1). In a turnover moulding machine the mould box 3, Fig. 1, is clamped to the pattern plate 2 by bolts 1 movable up and down by compressed air cylinders 4, each bolt having a slot 5, Fig. 2, containing an element 6 pivoted off-centre to the bolt at 7. When the mould-box flanges 9 are placed over the bolts, the bolts are then raised until elements 6 can pivot to the horizontal position, due to their off-centre pivots, and finally the bolts are lowered to cause the elements to clamp the box to the plate. After the moulding, the box is inverted by cylinder. 10 and a table 11 with rollers 12 is raised to the box. The bolts are then lowered to permit the elements to pivot to the vertical position within the slots 5, whereupon the bolts are retracted and the mould box and table lowered away from the plate 2.
Patent GB-786874-A (GB)
Title: Improvements in or relating to pressure relief devices
IPC: F16K17/40
Filed: 1953-05-13
Abstract: 786,874. Fire-extinguishing. GRAVINER MANUFACTURING CO., Ltd., MATHISEN, A., and WILKINSON SWORD, Ltd., [formerly WILKINSON SWORD CO., Ltd.]. May 7, 1954 [May 13, 1953, June 26, 1953], Nos. 28894/56 and 28895/56. Divided out of 786,872 [Group XXIX]. Class 47 [Also in Group XXIX] A fire suppressing fluid is contained in a space 61 between discs 60a, 60b, of a pressure relieving device (see Group XXIX) adapted to be shattered or burst by a detonator 62 to relieve pressure in apparatus to which it is fitted. The discs may be of brittle material, such as plastic, or of a ductile metal, for example silver or copper. The liquid may be continuously circulated through the space 61 to act as a coolant when the device is exposed to a high ambient temperature. Specifications 643,188, 719,622 [Group XXXVII], 749,597 [Group XL(b)] and 786,871 [Group XXXVII].
Patent GB-830737-A (GB)
Title: Metal alloys
IPC: C22C27/02
Filed: 1958-09-09
Abstract: An alloy having good corrosion resistance and strength at high temperatures has a composition within the following range in per cent by weight: .Cr.3-20 .Al.2-8 .V.3-10  Nb and/or Ta and impurities the balance.  The alloy may also contain: .Fe.up to 5 .W.up to 10 .C.e.g. up to 0.5 .O.e.g. up to 0.8 .N.e.g. up to 0.2  The alloy may be used in parts of gas turbines, in valves or other parts of internal combustion engines, linings of retorts and other chemical or metallurgical apparatus.
Patent GB-159294-A (GB)
Title: Improvements in and relating to means for use in conjunction with the stopping of trains in case of danger
IPC: B61L3/04
Filed: 1919-11-21
Abstract: 159,294. Autome, R., and Huart, A. Nov. 21, 1919. Track apparatus for stopping trains with mechanical contacts actuating pneumatic apparatus. Engine brake and throttle levers are operated for emergency stopping by compressed air or steam cylinders controlled by a rotary valve H, Fig. 7, normally held against the action of a spring and a w.eight by direct engagement of a notch in the disc h on the valve with a slidinglymounted engine contact. A catch holds the engine contact in the train-stopping position and must be manually removed before the engine can be restarted. The weight and spring act directly upon the disc h, which is integral with a sleeve t<1> mounted upon a sleeve h<8> on the valve body. The disc has a squared projection H<2> which engages the cock H. Stops are provided for limiting the movement of the valve. The brake and throttle levers may be connected to the pistons of the operating cylinders by links or rack-and-pinion gear. Or a second lever m', Fig. 9, may be directly connected with the piston and operate the lever o by contact. In this case, the lever o is free for normal operation apart from the piston j<1>. Fig. 14 shows a method of raising the sliding rod g, which releases the train-stopping valve, by means of a pivoted engine contact e. The track ramp a, Fig. 11, is pivoted at c and is turned into train-stopping position by means of a link a<1> and a slide-bar a<2>, which may be operated by a cable.
Patent GB-655752-A (GB)
Title: Planographic printing plate and treatment thereof
IPC: B41N1/14
Filed: 1948-11-09
Abstract: 655,752. Printing-surfaces; damping lithographic plates. WARREN CO., S. D. Nov. 9, 1948, No. 29104. Convention date, Dec. 12, 1947. [Class 100 (ii)] The hydrophilic surface in the unimaged areas of a planographic printing plate contains a water-insoluble compound of a metal acting with a valency of 2 or more, the compound being obtained by reaction between a water-soluble compound incorporated into the surface before imaging and a water-soluble salt of the metal applied after imaging; impermeability to water is thereby increased without affecting the adhesion of the image. The plate may be of paper having on at least one side a colloid surface of film-forming material (e.g. clay, blanc fixe, &c. dispersed in a film-former, with or without a light top wash of clear film former) incorporating a phosphate, oxalate, sulphate, borate, citrate or chromate; the metal salt solution may be buffered to a pH value within the range 3 to 7. In one example a paper base having an undercoat of clay 100, ammonium caseinate 18, di-methylolurea 1.5 (parts by weight) is used, the water-soluble reagent being introduced in the top hydrophilic aqueous wash; this may contain sodium alginate and di-ammonium phosphate (with an after-imaging wash of a zinc formate solution), or carboxymethyl cellulose and ammonium sulphate (using an after-imaging wash of barium chloride solution). The Specification as open to inspection under Sect. 91 comprises also the incorporation of the water-soluble salt of the metal in the surface before imaging, the reagent being applied after imaging, e.g. included in the wet-out solution; the plate may be imaged, e.g. photographically, after completion of the reaction; a melamineformaldehyde resin-containing paper plate with a clay-casein-ammonia coating may be washed over with an aqueous zinc acetate solution, and after imaging with an aqueous di-ammonium phosphate solution; other top hydrophilic coatings and reaction components referred to are : guar gum, zinc acetate and formaldehyde, with mono-ammonium phosphate or ammonium borate or citrate; gum arabic and calcium acetate, with ammonium oxalate; guar gum and lead acetate, with ammonium chromate. This subject-matter does not appear in the Specification as accepted.
Patent GB-1164775-A (GB)
Title: Improvements in or relating to a selective twin-beam infra-red gas analyser
IPC: G01N21/37
Filed: 1968-06-20
Abstract: 1,164,775. Twin beam infrared gas analyzer. HARTMANN & BRAUN A. G. June 20, 1968 [Aug. 3, 1967], No.29371/68. Heading G1A. In a selective twin-beam gas analyzer comprising measuring and reference beams, means for modulating the beams and means for phaseindependent rectification of the output of a detector on which the beams impinge, the cell length is so chosen that the selective absorption in the measuring cell is between 40 and 60% at the monitored concentration limit, the rectifier network has a sensitivity threshold exceeding the zero-point drift, and the detector output is zero at zero concentration due to the matching of the beams in amplitude and phase. The apparatus described is suitable for a portable arrangement for determining the CO concentration from an I. C. engine and comprises separate hot wire sources 1À2: Fig.1. which sends beams through measuring cell 5 and a reference cell 6 to a capacitor type detector 8, a modulator 4 cylically interrupting the beams. The circuit includes a switch 15 whereby the measuring beam source may be shunted by a resistor 13 to simulate a predetermined amount of absorption for calibration by adjustment of the amplifier gain, and whereby a temperature sensitive resistor 14 is introduced during calibration to effect temperature compensation. The range of absorption is said to give a linear relationship between the output electrical signal and the concentration of gas in percentage by volume.
Patent GB-478118-A (GB)
Title: Improvements in and relating to magazine lead pencils with selectively interchangeable lead holders
IPC: B43K24/12
Filed: 1936-06-11
Abstract: 478,118. Pencil holders. FEND, K. June 11, 1936, No. 29461/37. Divided out of and addition to 474,736. [Class 146 (iii)] In the magazine pencil described in the parent Specification the forward widenings 25, Fig. 1, of the slots in one casing each have a sloping counter edge 25<1>, the rear part of each slot being straight, and each slot in the other casing has a forward straight part and a sloping edge 29 in its near part. Either casing may be the stationary outer one and in any case, when a lead holder is fed forward, the web of its operating button co-operates first with the edge 29 to rotate one of the casings into the free position, and then with the edge 25<1> to rotate the casing back so that the web of the button engages under the locking shoulder 26. In a further modification the slots in the stationary casing 34, Fig. 2, have a forward widening 37 with a straight counter edge and a rear widening with a sloping edge 38, and the slots 40 in the rotatable outer casing 41 are narrow over their whole length, except for a widening 42 to permit the introduction of the buttons 43 in assembly. In this construction the outer casing is pinned at 45 to the casing 34 and cut to form a helical spring 44, which serves to turn the casing 41 back to locking position to engage the web of the button under the shoulder 39. The lead holders are returned by individual springs 49, Fig. 5, retained in tubes 50 between constricted ends 51 of nuts 52 ; the tubes are retained on the arms 54 of a cross fixed in the casing. Bars 53, to which the lead holders are attached, screw into the nuts 52. A cover sleeve is slid over the widenings 42, and a lead magazine sleeve 48 is locked into the casing 34 by slots 46. The widenings 25, 37 are longer than the webs of the buttons 43, so that the holders can be pushed forward for screw feeding of the lead.
Patent GB-382422-A (GB)
Title: Improvements in hardening processes for aluminium alloys
IPC: C22F1/00
Filed: 1931-10-24
Abstract: Aluminium alloy articles, especially those made as described in Specification 350,110, are hardened by quenching them from a temperature of 480-540 DEG  C. in a liquid, other than molten metal, such as glycerine or oil, maintained at a temperature of 110-180 DEG C.  The liquid is agitated during the process and the articles are left in the liquid after they have attained the temperature of the liquid.
Patent GB-243387-A (GB)
Title: Improvements in damping devices for fluid pressure gauges of the kind employing bourdon tubes
IPC: G01L7/04
Filed: 1925-11-23
Abstract: 243,387. Schõffer & Budenberg Ges. Nov. 24, 1924, [Convention date]. Bourdon pressure gauges; with damping-arrangements. -Between the Bourdon tube 1 and the indicating parts is provided an elastic intermediate member 2 to minimize the effects of rapidly fluctuating pressures or of vibrations from the gauge mountings. The elastic member is preferably constituted by an elliptically shaped spring 2. If the indicating parts 3, 5 of the instrument do not possess sufficient inertia a disc 6 'is mounted on the spindle of the indicating needle, and this disc may rotate between the poles of a magnet 7 the eddy currents exerting a braking action on the disc.
Patent GB-285975-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/20
Filed: 1926-11-23
Abstract: 285,975. Edison Swan Electric Co., Ltd., and Price, T. W. Nov. 23, 1926. Vacuum tubes.-A thermionic valve is provided with a cathode, a main anode, a second anode and a grid disposed between the cathode and both anodes and of coarser mesh adjacent the second anode than at other points. The main anode 2 of the valve V<1> may be connected through a resistance 3 of 5 megohms to the high tension terminal 4 and through a condenser 5 to the grid of a second valve V<2>. The second anode 9 is connected to the terminal 4 through a coil 10 coupled to the tuned aerial circuit 1 connected to the grid 12 and cathode 11 of the valve V<1>. A resistance 7 of 3 megohms and a grid-bias battery 8 are included in the grid circuit of the valve V<2>. The valve V<1> thus gives pure voltage amplification with the main electrodes 2, 12, 11 of high-impedance high amplification factor, and reaction with the anode 9. More than one auxiliary anode may be used to apply reaction to different parts of the circuit. The valve may comprise a helical grid 12, Fig. 4, within a main cylindrical anode 2 and around a single filament 11. One or more auxiliary anodes in the form of small cylindrical segments or of straight or helical wires or tapes 9 which may be interconnected are arranged between the grid 12 and anode 2 and the grid wires are spaced apart farther opposite the wires 9 than elsewhere. In a modification, Fig. 5, the main anode 2 and auxiliary anodes 9 all comprise cylindrical segments around the cylindrical grid 12. In another modification, the main and auxiliary anodes comprise plates on either side of an oval grid surrounding a hairpin filament. The Provisional Specification refers to the use of a two-anode valve simultaneously as a rectifier on the anode bend principle and as an oscillator, regenerator, or amplifier, and describes valves with anodes differently spaced from a flattened helical grid.
Patent GB-1008462-A (GB)
Title: Improvements in and relating to organosilicon compounds
IPC: C08G77/00
Filed: 1961-08-17
Abstract: N - (aminoalkyl) - aminoalkyl silicon compounds may be made by reacting under anhydrous conditions at 50 DEG  to 300 DEG  C. (1) a silane of the formula (A) <FORM:1008462/C3/1> wherein R1 is a divalent saturated hydrocarbon radical, R is a monovalent hydrocarbon radical of 1 to 10 C atoms and free from aliphatic unsaturation, A is an alkoxy radical of 1 to 8 C atoms, b is 0 or 1, and the Cl is removed from Si by at least 3 C atoms, or a siloxane containing a unit of the formula (B) <FORM:1008462/C3/2> with (2) a diamino compound of the formula (D) <FORM:1008462/C3/3> wherein r is an integer of 2 to 6, the N atoms bonded to the CrH2r group are separated by at least 2 C atoms, G is selected from H, b -hydroxyethyl, alkyl radicals of 1 to 6 C atoms and (CH2.CH2NH)sH radicals wherein s is 1, 2 or 3, and G1 is selected from H, b -aminoethyl, b -hydroxyethyl and alkyl radicals of 1 to 6 C atoms, the molar ratio of (2) to (1) being at least 3: 1.  Numerous examples of reactants are given.  The reaction may be effected with or without a solvent, under normal or super atmospheric pressure, and preferably in an inert atmosphere.  Preferably the chloroalkyl silicon compound is slowly injected into a reactor containing the diamino compound and a solvent and maintained at reaction temperature. In one embodiment the chloroalkyl chlorosilane is reacted with the diamino compound and an alcohol.  Examples describe the above preparation of (1) to (5) and (19) silanes and (7) to (18) siloxanes.  Example (6) describes the preparation of g -chlorobutylmethylsiloxy-modified dimethylpolysiloxane.  Uses.-As sizing agents for glass cloth in making laminates; and as pigment binders for colouring fibre glass subtrates.ALSO:N-(aminoalkyl)aminoalkyl silanes and siloxanes (see Division C3) are used (i) for coating glass cloth, e.g. by immersion in an aqueous or other solvent solution of the organosilicon compound, and (ii) as pigment binders for colouring fibre glass substrates, e.g. glass cloth, thus a pigment is dispersed in an aqueous solution of the organosilicon compound, formic, acetic or propionic acid being added to solubilize the organosilicon compound; glass cloth is then treated with this dispersion, passed through a padder roll and heat cured.  Many pigments are specified.  Example 20 describes the above method of colouring glass cloth.  Reference has been directed by the Comptroller to Specification 858,445.
Patent GB-426358-A (GB)
Title: Improvements in or relating to extendable and retractable gates or the like
IPC: E06B9/06
Filed: 1933-10-27
Abstract: 426,358. Gates. EXPRESS LIFT CO., Ltd., and STEVENS, J. W., Greycoat Street, London. Oct. 27, 1933, No. 29875. [Class 45] [See also Group XXV] An extending gate, such as a lift gate, is urged towards the closing position by springs 8 acting directly upon lazytongs 6 connecting the pickets 2. The lazytongs is provided with rollers 7 running within the channel irons forming the pickets and the springs are guided throughout their length in these channels. The springs may act only over part of the movement of the gate, and may be of different lengths or strengths in order to exert greater force at the start of the closing movement. The inner end of the lazytongs may be actuated for opening the gate.