baber/WOPTO huggingface dataset:
Patent GB-1353033-A (GB)
Title: Plastic-containing parchment
IPC: D21H17/55
Filed: 1971-05-11
Abstract: 1353033 Parchment paper UNILEVER Ltd 11 May 1971 [12 May 1970] 14116/71 Heading D2B  A parchment paper with high opacity and optionally good heat sealability is obtained by treating raw paper once or twice with a sulphuric or phosphoric acid solution of parchmentising strength and thereafter washing away the acid with water and/or dilute acid, neutralizing if desired with NH 3  solution and drying, one or more of the aforesaid acid treatment solutions containing in solution a water-insoluble polyamide e.g. a polymer formed from hexamethylene diamine, 4,4'-diamino dicyclohexylmethane and/or caprolactam and sebacic and/or adipic acid. Where two parchmentising baths are used the former may be cooler (e.g. -5 to 0‹C) than the latter (e.g. 0‹C to 56‹C). The parchmentising acid may be sulphuric or phosphoric acid and the bath may contain formaldehyde. During or after drying the paper may be heated until the polyamide softens or sinters and the paper may be calendered.
Patent GB-539998-A (GB)
Title: Improved tool for use in stretching rubber tubing
IPC: H02G1/14
Filed: 1940-09-16
Abstract: 539,998. Stretching pliers. SIEGRIST, E., and PHILLIPS, W. G. Sept. 16, 1940, No. 14211. [Class 61 (ii)] Pliers' for stretching rubber sleeves over the ends of conductors comprise a pair of elbowed jaw members 3 pivoted at 4 to the ends of a bridge member 5 and co-operating with a pair of lever arms 8 pivoted to the bridge member at 7, and connected by springs 10 to the jaw members, the arrangement being such that four pins 6, 9 at the ends of the jaw members and lever arms engaged within a rubber sleeve are moved outwardly when the handles 2 are gripped together so as to expand the sleeve to a square configuration enabling it to be slipped over the conductor.
Patent GB-210690-A (GB)
Title: Improvements in boot heels
IPC: A43B21/02
Filed: 1923-05-30
Abstract: 210,690. Buckland, V., and Hawkins, H. May 30, 1923. Heels.-A laminated heel of the kind built up of layers of different materials is formed of a layer or layers of plywood c and other layers b, b<1> of materials such as leather, rubber, vulcanite, fibre, metal &c. The layers are secured to an upper wooden portion a of the heel by a nail, screw, or rivet. Specifications 16598/05, 17779/15, and 110,518 are referred to.
Patent GB-904657-A (GB)
Title: Apparatus for lifting and emptying bins or other containers
IPC: B65G65/00
Filed: 1958-05-05
Abstract: 904,657. Tipping bins and other containers. SERVICE ENGINEERING CO. (NORTHAMPTON) Ltd., and POPE, H. C. May 5, 1959 [May 5, 1958], No. 14348/58. Classes 78 (3) and 78 (4). A bin or other container to be emptied is secured in a support 7 pivoted to a frame 1 by an arm 4 which also pivotally supports a shoot 17. On extending an hydraulic ram 2, pivoted between the frame 1 and the arm 4, the support 7 is raised to the position 7A and the shoot 17 turns on a pivoted arm 18 to the position 17A, so that on extending a second hydraulic ram 12, pivoted between the bottom of the support 7 and the frame 1, the support and bin turn about axis 5 to tip the contents of the bin down the shoot 17 and a further shoot 1A into a hopper (not shown). The rams 2, 12 and arms 4, 18 may be duplicated. The bin is secured in the support 7 by means of hooks, Fig. 2 (not shown), which are locked in position. The frame 1 may be provided with wheels and the rams may be actuated independently or sequence-interlocked to operate automatically.
Patent GB-641437-A (GB)
Title: Process for the production of n-vinyl compounds
IPC: C07C209/60
Filed: 1947-05-31
Abstract: Acetylene is reacted with secondary diamyl amines or compounds containing a pyrrole ring to produce N-vinyl compounds, the acetylene being first contacted while under non-explosive conditions with a liquid volatile organic compound maintained at a predetermined temperature, the acetylene being thereby saturated with the vapour of the organic liquid as in Specification 641,436; the ratio of acetylene to vapour is such that the mixture is non-explosive when introduced into the reaction zone, although the temperature and pressure are such that the acetylene would normally be explosive. The acetylene is then brought into contact with a compound containing a pyrrole ring or a secondary diaryl amine in the presence of a strongly alkaline substance, preferably at 100-200 DEG  C.  The inert diluent for the acetylene may be aliphatic or cyclic hydrocarbons, heterocyclic compounds, ethers, acetals or esters, many such compounds being specified.  Other diluents may be used in addition for the reaction, especially if the reactant is a solid, a paste being made of the reactant, diluent and alkaline catalyst.  The product of the reaction is separated from the catalyst and purified by known methods. Examples show the reaction of acetylene with carbazole and with phenyl a -naphthylamine.  Specification 470,116 also is referred to.
Patent GB-1013448-A (GB)
Title: Motor vehicle slidable window
Inventor: WHITE WALTER
IPC: E05C17/60
Filed: 1964-02-12
Abstract: 1,013,448. Vehicle window stops. FORD MOTOR CO. Ltd. Feb. 12, 1964 [April 11, 1963], No. 14497/63. Heading E1J. A stop-arm 7 of Z-shape to limit the horizonlly sliding movement of a vehicle windows and having upper arm 9, intermediate arm 13 and lower arm 17, is pivoted to a projecting stand 18 on a crank disc 19, the upper arm 9 projecting upwardly into the horizontal window guide 5 and a spring 11 biasing the stop arm downwardly. Rotation of the disc in an anti-clockwise direction by a knob at the back from the lower dead centre position (chain lines slides the arm 9 upwards through the top dead centre and beyond until stopped by a projection 27 on the disc interlocking with the arm.
Patent GB-966412-A (GB)
Title: Improvements in balancing etching baths
IPC: C23F1/00
Filed: 1962-04-16
Abstract: 966,412. Etching. MASTER ETCHING MACHINE CO. April 16, 1962 [Nov. 13, 1961], No. 14609/62. Heading B6J. An etching bath for zinc comprises nitric acid, with additives such as other acids or ferric chloride, and zinc nitrate, the concentration of zinc in the bath being between “ oz. and 3¢ oz. per litre. When a workpieee is etched in the bath a certain amount of the metal of the workpiece is dissolved into the bath. This amount is either detected by weighing of the workpiece before and after etching or estimated from the loss of weight during etching of one workpiece from a uniform batch. After a workpiece has been etched a quantity of liquid is removed from the bath, such quantity containing an amount of zinc ion equal to the amount which was removed from the workpiece. Thus, if the etchant contains one ounce of zinc per litre and if the workpiece loses 3 oz. in weight during etching, then three litres of etchant are removed from the bath (the slight increase in concentration owing to the amount of zinc dissolved from the particular workpiece being ignored). The quantity of etchant removed from the bath is replaced by an equal quantity of fresh etchant comprising nitric acid and additives but no zinc ion. In this way the concentration of zinc in the bath remains substantially constant and the bath is maintained at its optimum efficiency. The process may be effected by hand or by the apparatus shown in the drawing. As shown, a zinc plate 24 is etched by liquid from a bath 21 which is sprayed on to the plate by impellers 22. During etching the liquid is circulated round a system comprising a main tank 25, a supplementary tank 26 and pipes 28, 32 by means of a pump 27. A weighing tank 34 is carried on a balance 33. After the plate 24 has been etched the appropriate quantity of liquid is fed into the weighing tank from the tank 26 through a pipe 35 and is discharged therefrom through a pipe 40. Fresh etchant is then pumped into the weighing tank from a storage tank 47 by a pump 50 through a pipe 46 and is finally discharged through a pipe 44 into the main tank 25. The invention is applicable to etching other metals, e.g. copper or magnesium.
Patent GB-1458113-A (GB)
Title: X-ray fluorescence analysis
IPC: G01T1/36
Filed: 1974-04-02
Abstract: 1458113 X-ray fluorescence analysis; highspeed pulse analysis COLUMBIA SCIENTIFIC INDUSTRIES Inc 2 April 1974 [6 Aug 1973] 14615/74 Headings G1A and G1U Fluorescence analysis apparatus comprises an x-ray source for bombarding a specimen at a rate exceeding 20 000 pulses a second; an energydispersive detector for providing charges proportional to the energy of successively received photons; processing means for converting the charges to sawtooth pulses and sampling their decaying ramp functions; means for extrapolating a first ramp function and comparing the extrapolated height with the actual height of the next following ramp function; and means responsive to the charges for controlling the operating times of the x-ray source.  A pre-amplifier 16, Fig. 1, connected to a SiLi photodiode 14 and illustrated in detail in Fig. 2, receives from the detector 14 pulses of charge each proportional to the energy of a photon emitted by a specimen 12 (Fig. 1) under test. The capacitor Cf of Fig. 2, on being charged by a pulse, undergoes a rapid proportional voltage rise and is then partly discharged by a resistance R f . Because of a steady potential V 1  established by an integrating amplifier 20, the discharge rate adjusts itself in the long term to the average current due to the detector charges; but in a short period on either side of a pulse the rate is substantially uniform, providing at the output of an amplifier 18 a series of steep rises each of charge-dependent amplitude preceded and followed by parallel ramps, of which one such waveform is the graph 32, 34 of Fig. 3.  The output from the preamplifier 16, Fig 1, filtered at 22, 24 to remove high-frequency noise and further amplified at 30, is applied to an ADC 31 which samples each ramp at a standard number of points, typically four, under the control of a deck-pulse generator. A fast channel 26, Fig. 1 connected to the preamplifier 16 provides a signal whenever a steep rise is detected, which is used by a control logic circuit 28 to command the ADC 31 to begin sampling the ramp 34, Fig. 3 and to extrapolate the ramp 32, which has already been sampled at points 32a-32d, to points in time corresponding to points 34a-34d. An average of heights such as 38 between the ramp 34 and the extrapolation 36 is taken as a measure of the pulse height and analyzed by a digital processor 40 and a multi-channel analyzer MCA to compile a histogram. In response to the pulse from the fast channel 26, the control logic 28 also shuts off the source 10 to give the ADC 31 time to sample the subsequent ramp 34 (Fig. 3) e.g. at 2Ás intervals and again switches on the source 10 to initiate the next pulse, typically after an interval of 10 microseconds.
Patent GB-529392-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/10
Filed: 1939-05-16
Abstract: 529,392. Hydraulic shock-absorbers. WILLS, Ltd., W. & F., and WILLS, P. May 16, 1939, No. 14653. [Class 108 (iii)] In a rotary type shock absorber comprising a pair of intermeshing toothed wheel impellers dividing a housing, the valved conduit connecting the divided parts of the housed is arranged in the wall of the housing. The toothed impellers 2 divide their housings 10 containing oil or grease into two compartments 30, 32 and are oscillated by an arm on one of the impeller spindles. A passage 34 in the housing cover 12 connects the compartments and has a spring- loaded valve 38 and a byepass duct 54 through the valve. A needle valve may be provided in the duct 54.
Patent GB-683233-A (GB)
Title: Improvements relating to supporting building boards
IPC: E04B9/24
Filed: 1950-06-13
Abstract: 683,233. Roof &c. linings; partitions. HAY, H. M. Sept. 12, 1951 [June 13, 1950], No. 14698/50. Class 20(iv) A roof &c. lining, or partition is formed of building boards a attached to metal supports by concealed fixing, with the adjoining boards in at least one direction located in different planes and the borders of the boards in different planes overlapped to an extent that normal shrinkage of the boards will not develop a gap therebetween. The boards are supported by Z- section laths b with one flange secured to the front board, e.g. by staples, screws, or struck out tongues, and the other embracing the edge of the rear board and extending over a flange of an inverted T, angle, or channel section lath h suspended from the purlins. Alternatively the laths h may be omitted and the laths b suspended by runners from the purlins. At the transverse joints the boards may be butted as in Fig. 2, the joint being covered by a board strip e housed within the space formed by a Z-section lath f secured to one board and wire or strip metal Z-shaped clips g on the other board. Alternatively the boards may overlap at their transverse borders with a Z- section lath f secured to the two boards, or as in Fig. 6, with an angle section lath i secured to the front board, and a wire or strip metal clip j secured to the lath i to extend over the rear board. The transverse laths f or i are cut and bent at the ends to engage over the flanges of the laths b or h, or Z-shaped sheet metal or wire clips k are secured to the laths to support them on the flange of the supporting laths h. One or more flanges of Z laths b or f or Z clips k may be secured to the boards by engaging beneath joggled clip plates l attached to the boards. The boards may be arranged in two planes, or may be overlapped in sawtooth configuration ascending towards the centre of the roof space, or with the individual boards slightly inclined to keep the lining at a mean level.
Patent GB-1071724-A (GB)
Title: Record material
IPC: D21H19/58
Filed: 1965-04-07
Abstract: Attapulgite in an aqueous medium is reacted with a water-soluble oxide, halide, nitrate, sulphate or acetate of zinc, cadmium, mercury calcium, magnesium, strontium, manganese, cobalt or nickel.  In Example 1, zinc chloride is dissolved in water, and attapulgite clay is mixed in.  Example 2 is similar but uses cadmium iodide in place of zinc chloride.ALSO:An attapulgite-containing adsorption-reactive record material coating is protected from atmospheric poisoning by preparing the coating slurry by reacting attapulgite in an aqueous medium with a water-soluble oxide, halide, nitrate, sulphate or acetate of zinc, cadmium, mercury, calcium, magnesium, strontium, manganese, cobalt or nickel.  In Example 1, zinc chloride is dissolved in water, attapulgite clay is mixed in, butyl latex and starch solutions are added, and the resulting composition coated at the size-press of a paper-making machine. Example 2 is similar but uses cadmium iodide in place of zinc chloride, whereas Example 3 uses styrene-butadiene latex instead of the butyl latex/starch adhesive.ALSO:An attapulgite - containing adsorption -reactive record material coating is protected from atmospheric poisoning by preparing the coating slurry by reacting attapulgite in an aqueous medium with a water-soluble oxide, halide, nitrate, sulphate or acetate of zinc, cadmium, mercury, calcium, magnesium, strontium, manganese, cobalt or nickel.  The coating may be applied to paper at the size press, and the paper then typed upon using a colourless Crystal Violet Lactone ink, which produces a blue colour on the attapulgite coating.  In Example 1, zinc chloride is dissolved in water, attapulgite clay is mixed in, butyl latex and starch solution are added, and the resulting composition coated at the size-press of a paper-making machine.  Example 2 is similar but uses cadmium iodide in place of zinc chloride, whereas Example 3 uses styrene-butadiene latex instead of the butyl latex/starch adhesive.
Patent GB-708595-A (GB)
Title: A method and apparatus for the purification of titanium tetrachloride
IPC: C01G23/02
Filed: 1952-06-11
Abstract: 708,595. Electrolytic purification of titanium tetrachloride. TITAN CO.; Inc. June 11, 1952 [June 12, 1951], No. 14758/52. Class 4<SP>1</SP>. Impure titanium tetrachloride is purified by reduction to a lower chloride in the cathode region of an electrolytic cell and recombination with chlorine to reform the tetrachloride in the anode region. The reactions may take place in a fused bath consisting of a chloride of one or more of the alkali or alkaline earth metals or magnesium, preferably a eutectic mixture. Treatment may be effected in the cell shown, the titanium tetrachloride being introduced through the tubular cathode. 13 into a fused mixture of strontium chloride, sodium chloride, titanium dichloride and titanium trichloride at 700 ‹C. The titanium tetrachoride is reduced at the cathode and migrates to the anode zone where it recombines with chloride produced at the graphite anodes 16 and is withdrawn at 21. The upper portion of the cathode is surrounded by a barrier ring 17 of fused silica surmounted by a cover 18 comprising means 19 for introduction of inert gas such as helium or argon. The cathode may be of nickel or tantalum and may have a silica lining 22. The cell 12 may be of fused impervious silica with an outer sheath 13 of stainless steel. The cell may be heated by gas-burners 11. The current employed is preferably limited to 1.1-1.6 faradays per mol of titanium tetrachloride introduced in order to prevent reduction to metallic titanium.
Patent GB-571059-A (GB)
Title: Improvements in or relating to face clutches and methods of producing same
IPC: F16D11/14
Filed: 1943-09-09
Abstract: 571,059. Making clutches. ABBEY, A. (Gleason Works). Sept. 9, 1943, No. 14835. [Classes 83 (ii) and 83 (iii)] [Also in Group XXIV] Milling-machines and cutters.-A toothed faced clutch member 30 has teeth 32 with longitudinally curved side surfaces which are chamfered along their top edges 36, 37 ; the side surfaces and chamfered parts being coaxial surfaces of revolution whose axes are inclined to the clutch axis. The teeth 32 are longitudinally concave and those of the mating clutch member 31 are longitudinally convex. The teeth may be cut by a face milling cutter 55 with blades 59 with inside or outside cutting- edges, and rotatable about an axis 46 so that opposite sides 34a, 35b of spaced teeth 32a, 32b are cut in a single operation. The sides and chamfer may be cut separately or. together. Instead of being cut, the teeth may be formed by the use of a rotary grinding-wheel of annular form or of an oscillatory cup-shaped wheel.
Patent GB-151075-A (GB)
Title: Improvements in and relating to icemaking plants
IPC: F25C1/00
Filed: 1919-06-13
Abstract: 151,075. Wheater, C. June 13, 1919. Exchanging heat with one or other of two fluids.-Relates to " plates " for a direct expansion system of ice-making made up of straight lengths of expansion tubes and hollow filling-in blocks between the tubes for the passage of a thawing- medium. According to the invention the filling-in blocks 3, 4, which are recessed at their edges 5 to enclose the expansion tubes 1, are connected in parallel between upper and lower headers 9, 10, and the tubes 1 are connected in series by junction-boxes 2. The filling-in blocks 3, 4 are reduced at alternate ends, as shown in Fig. 3, and end blocks reaching to the walls of the tank are provided to complete each " plate." After the freezing operation, the refrigerant supply to the tubes 1 is cut off and steam or hot water, for example warmed condenser or enginejacket water, is circulated through the blocks. The draining opening of the thawing-passages may be controlled in such a way as to ensure the drainage of the thawing-medium when the refrigerant valves are opened for freezing.
Patent GB-378957-A (GB)
Title: Improvements relating to electrically operated horns
IPC: G10K9/20
Filed: 1931-05-21
Abstract: 378,957. Electric horns. LUCAS, Ltd., J., TURNER, E. O., and PURDEN, R. H., Great King Street, Birmingham. May 21, 1931, No. 14998. [Class 13.] In an electric horn, a plate c having a free periphery and mounted on a diaphragm b or other elastic member is closely surrounded without touching by a fixed member d. The amount of clearance may, in the case of a disc of from 2À5 to 3 inches diameter, be about À05 inches or according to the Provisional Specification it may be 1/32 inch or less.
Patent GB-181003-A (GB)
Title: Improvements in and relating to self-discharging receptacles with a bottom which canbe tilted to both sides
IPC: B61D7/10
Filed: 1922-05-29
Abstract: 181,003. Krupp Akt.-Ges., F. June 1, 1921, [Convention date]. Addition to 171,672. Hopper wagons.- In the flat-bottomed self-discharging receptacle described in the parent Specification, the links operating the side doors are of simplified construction. Each crank d on the longitudinal operating shaft c is connected to the cranks b, supporting the bottom of the discharge floor, in the manner, not shown, described in the parent Specification. Connected to each crank d is a link e guided either by a slot f, or a link, on the end wall l. A roller g, on the end of the link e slides in a slot i on the door h. When discharging to the right, the left hand shaft c is revolved collapsing the right hand links b and causing the floor to tilt about the pivot of the left hand links b. The crank d in turning forces the Link e through the guide f and opens the right hand door h. During this movement the left hand roller g slides down the slot i and extension i<1> keeping the door and floor in contact until the bottom engages by its edge o behind the door h and securely holds it against the lateral pressure of the load.
Patent GB-277423-A (GB)
Title: Improvements in loaded conductors
IPC: H01B13/28
Filed: 1926-06-15
Abstract: 277,423. Mougey, W. E., and Western Electric Co., Inc. June 15, 1926. Continuously loaded cables and conductors.- In making a continuously loaded conductor loading material is wrapped on a conductor having interstices or interior air spaces and the conductor may then be twisted to wholly or partially close the interstices and ensure a loose fit between the loading material and the conductor prior to heat treatment. Alternatively a central core may be wound with strips having their middle portions bowed out of contact with the core thereby forming interstices. This composite conductor is wrapped with loading material and passed through grooved rollers to obtain the loose fitting. Specification 277,424 is referred to.
Patent GB-766580-A (GB)
Title: Improvements in tools or instruments for marking out surfaces
Inventor: WARING FRANK EDGAR
IPC: B25H7/04
Filed: 1954-05-22
Abstract: 766,580. Marking gauges. TRIANGLE PRODUCTS, Ltd. May 12, 1955 [May 22, 1954], No. 15109/54. Class 61 A tool for marking out on a flat surface an area developed from a three dimensional figure comprises a template holder 5, 6, 7 at each end of an articulated rod, the articulations of which allow an angular adjustment of the template holders relatively to the general axis of the rod, the articulated member including telescopic parts 12, 16. In use flat templates 8 having edge contours representing the end shapes of the figure to be produced are clamped to the respective holders', their edges chalked and the tool rotated so that the templates roll over a flat surface and the chalked edges mark out two distinct paths. A split boss 1 is clamped on the free end of each of the telescopic parts 12, 16, the boss having a flat sided extension 2 over which a bifurcated member 9 fits and is pivoted at 4. The template 8 is clamped between the flat face 5 of the member 9 and a disc like nut 7 on a screwed stud 6 projecting from the member 9. The end of the hollow tubular member 12 is detachably and rotatably mounted in the split boss 1 and is held therein by a clamping screw 11 which draws the split parts together. The other head is held on the free end of the smaller tube 16 in similar manner. The member 12 is provided at its other end with a handle comprising a split boss 13 having a clamping screw 14 which holds the smaller telescopic tube 16 in adjusted position. Scales are provided for indicating the length between the templates and the relative angular positions of the templates. In a modification the telescopic parts are relatively slidable side by side parts. In another modification an additional telescopic part is added.