baber/WOPTO huggingface dataset:
Patent GB-943377-A (GB)
Title: Improvements relating to screw-threaded fastening devices
IPC: F16B33/02
Filed: 1962-06-13
Abstract: 943,377. Bolts; nuts; anchor-nuts; securing bolts against loss. W. DZUS. June 13, 1962 [Dec. 1, 1961], No. 22719/62. Heading F2H. Two panel plates 32 are secured together and held to a supporting plate 30 by a screw 10 (which may be captive in the outer panel plate) with a thread 17 having an undercut flank 18 and screwed into a housing 12 having a complementary thread and longitudinal slits 25, Fig. 4, so that downward movement of the screw 10 from the position shown causes the housing to contract inwardly. The housing 12 is formed in two halves, Fig. 4, each having a base 21 with a recess 33 for receiving an anchoring prong 31 struck from the supporting plate 30 at the edge of the plate aperture. A helical spring, Fig. 3, embraces tightly the top of the housing 12.
Patent GB-587797-A (GB)
Title: Improvement in process for insolubilising vinyl resins
IPC: C08K5/00
Filed: 1944-11-17
Abstract: Water-insoluble, partially hydrolysed, polyvinyl esters or partial polyvinyl acetals are heated with a copper salt or complex at a temperature of not less than 250 DEG  F., to improve resistance to methyl and ethyl alcohols, dioxane, transformer oils, water, acetone, toluene and ethylene dichloride.  The complex may be formed in situ when coating a copper surface by adding ammonia or an amine to the resin composition.  Copper compounds specified are copper acetate, 2-ethyl hexoate, sulphate, chloride and nitrate. Diethanolamine, triethanolamine, morpholine, monamylamine, dibenzoylamine, di-2-ethyl butylamine, aniline, cyclohexylamine, N.N1-dihydroxyethyl ethylene diamine, N.N1 - tetrahydroxyethyl ethylene diamine, hydroxyethyl diethylamine, propylene diamine, triethylene diamine, ethylene diamine, p-phenylenediamine, monoethanolamine, monoisopropanolamine, di-2-ethylhexenylamine, di-2-ethyl hexylamine and hexamethylene tetramine are specified amines.  The resins may be obtained by hydrolysing polyvinyl acetate, propionate, butyrate or benzoate, or reacting polyvinyl alcohol with an aldehyde or simultaneously hydrolysing and acetalising an ester, formaldehyde, acetaldehyde, butyraldehyde, propionaldehyde, valeraldehyde and hexaldehyde being specified.  Gelation can be prevented by adding acetic acid, acetic anhydride, ammonia, amines, or ammonium acetate.  Optional additions are methanol, methyl acetate, dioxane, cyclohexanone, diethylene glycol mono-butyl ether, triethylene glycol di-(2-ethyl hexoate), dibutyl sebacate and tricresyl phosphate.  The compositions may be used to coat wires and paper or to bond paper, cloth, wood, metal and leather and then baking as above.
Patent GB-683167-A (GB)
Title: Water measuring apparatus
IPC: B28C7/12
Filed: 1950-09-18
Abstract: 683,167. Delivering measured quantities of liquids. 'STOTHERT & PITT, Ltd., and KERRIDGE, N. E. Sept. 11, 1951 [Sept. 18, 1950], No. 22909(50. Class 106 (v) Apparatus for delivering measured quantities of water to a concrete mixer comprises a tank 1 supplied through a float-controlled valve 7, a piston 5 fitted in the machined lower portion 4 of the tank and displaceable by a screwed handwheel 17 to divide off a measuring chamber, and a pair of spring-loaded valves 29, 30 which are .normally closed but are opened separately, first to fill the measuring chamber through a transfer duct 31 and then to discharge the measured quantity through a pipe 50. The valves are operated by levers 40, 41 on a shaft 42 and spring-loaded cam discs with co-operating ribs and-grooves may be fitted on the-shaft to locate it in positions in which .both valves are closed or one or other valve is open. A groove 21 on the piston rod 13 engaged by a key,plate 20 prevents rotation of the piston and another groove 22 carrying a scale 23 indicates the capacity to which the measuring chamber is adjusted. An air duct 46 in the rod 13 connects the measuring chamber to the upper part of the tank, in which an overflow pipe 10 is provided.
Patent GB-1097975-A (GB)
Title: Improvements in or relating to aircraft direction finding equipment
Inventor: CREEK PAUL PALLOT
IPC: G01S1/02
Filed: 1964-06-03
Abstract: 1,097,975. Radio direction-finding. MARCONI CO. Ltd. March 17, 1965 [June 3, 1964], No. 22986/64. Heading H4D. The leads L1, L2, L3, L4, Fig. 1, from the two loops A1, A2 of the crossed loop aerial system A of an aircraft radio direction-finding equipment are provided with individual transformer couplers of which said leads are the secondaries and whose primaries are connected in series in pairs C1, C2 and C3, C4 and taken to terminals b1, b2, b3, b4. A coupler may comprise an axially bored cylinder F1, Fig. 2 (not shown), made, for example, of ferrite and upon which the primary W1 is wound and through which the lead L1 passes, or it may be constituted of a length of coaxial cable (Fig. 4, not shown) the outer conductor of which acts as the primary, or it may be in the form of a printed circuit (Fig. 5, not shown). Any screening provided in a lead is interrupted on each side of a coupler and is joined through outside it. The couplers are used when testing for injecting into the equipment signals corresponding to those which are received from an external source of known bearing. The couplers may be energized by a goniometer RG, Fig. 1, the search coil of which is connected to a signal generator S. In an alternative method (Fig. 6, not shown), the signal generator is applied directly to two of the terminals b1, b2, b3, b4 and, by means of paralleling connections and reversals of the signal generator leads, eight bearings at 45 degrees intervals through 360 degrees may be simultated. The couplers may be built into a housing H, Fig. 3 (not shown), comprising a socket connector PS3 corresponding to the terminals b1, b2, b3, b4 into which a plug may be inserted when testing. It is stated that the invention also permits testing of the normally provided so-called Q.E. corrector.
Patent GB-1123788-A (GB)
Title: Improvements in or relating to article delivery mechanisms for vending machines
Inventor: PORTER CHARLES BENJAMIN ALBERT
IPC: G07F11/16
Filed: 1966-05-23
Abstract: 1,123,788. Coin-freed apparatus. AUTONUMIS Ltd. 22 May, 1967 [23 May, 1966], No. 22989/66. Heading G4V. Delivery mechanism for a vending machine comprises a delivery member 1 movable from a starting position in either an article delivery path 6 or a non-delivery path 7, coin and/or article sensing means causing the path 6 to be selected only if a coin and/or article is present. As shown, the member 1 is attached to a trunnion member 13 pivoted at 14 and rocked by a push button 17. The member 1 carries a control bar 2 of which one end moves along the path 6 or 7 defined by a sleeve 4 and central core 5 while the other end is guided by the upper or lower edge of a slot 19 in a two-armed path selector 21 pivoted at 24. If a coin has been inserted in mechanism 25 it is engaged by sensing pin 23, thus checking the pivotal movement of selector 21 caused by the action of bar 2 on slot portion 19a so that the slot 19 guides the bar along the upper path 6. If, however, a coin is absent, the selector 21 pivots further into a position in which the bar is guided along the lower path 7. In a modification (Fig. 5, not shown), the path selector is pivoted to a further two-armed member which carries a pin for sensing the presence of an article in the stack 11. The coin-sensing pin may be arranged to sense the uppermost of a number of coins. Change-giving mechanism.-The bar 2, in its operative path 6, engages a lever 8 so as to move an apertured slide 35 from a position in which the apertures register with coin magazines 36 to the position shown in Fig. 10 in which the apertures register with those in a fixed plate 35a.
Patent GB-937970-A (GB)
Title: Power plant
Inventor: MUIR MALCOLM CHRISTISON
IPC: B64C29/00
Filed: 1962-06-14
Abstract: 937,970. Controlling aircraft. ROLLSROYCE Ltd. June 14, 1962, No. 22998/62. Class 4. Power plant has a jet engine and a manually operated control having relatively movable parts controlling respectively, movement of the engine nozzle and the engine fuel supply. Aircraft forward propulsion engines 10 and vertical lift engines 11 each have a pivotable nozzle controlled by device 40 and twist grips 29 of control 27. Fuel supply controls 22, 24 are controlled through linkages 25, 34 from levers 26, 33 respectively; twist grips 29 are mounted on levers 26 and the top part of each lever 33 is biased by a spring 32 to engage a spigot 35 in a notch 36 in lever 26, Fig. 3. Twist grips 29 control, through an amplifier and solenoid valve, a double acting piston whose rod 41 is connected to nozzles 16, Fig. 5 (not shown); the amplifier is also connected to operate a hydraulic pump, to an autostabilising circuit to maintain the symmetry of the thrusts of the various engines, and to a panel indicating the positions of the various nozzles. In operation, the twist grips are rotated to place the nozzles in the vertical lift position, Fig. 1, and then levers 26, 33 are rotated to increase the thrusts for take-off; reverse rotation of the twist grips moves the nozzles 16 to a forward propulsion position. Levers 33 are then moved out of engagement with levers 26 and are rotated to shut down engines 11. The nozzles 16 of engines 10 are locked in the horizontal position. For landing, engines 11 are relit, levers 26 are rotated to reduce the thrust of engines 10 and grips 29 are rotated to place nozzles 16 of engines 11 in the vertical lift position. At a predetermined air speed, levers 33 reduce the thrust of engines 11 and grips 29 are rotated to nozzle 16 of engines 11 to the forward propulsion position. Levers 26 and 33 are then gauged together and nozzles 16 of engines 10 are unlocked; grips 29 and levers 26, 33 are then rotated to move all nozzles 16 to the vertical lift position and to adjust the engines thrusts for landing. Specification 913,312 is referred to.
Patent GB-1214955-A (GB)
Title: Dealkylation of alkylaromatic hydrocarbons
Inventor: DEGRAFF RICHARD RAYMOND
IPC: C07C4/16
Filed: 1969-05-06
Abstract: 1,214,955. Combined dealkylation/fractionation scheme; benzene. UNIVERSAL OIL PRODUCTS CO. 6 May, 1969 [16 May, 1968], No. 23019/69. Heading C5E. [Also in Division B1] Benzene is produced from toluene during a process in which a feed-stock containing toluene is fed at 10 into a fractionation column 11, into which is also fed at 12 a dealkylation effluent comprising benzene, effluent 12 preferably being introduced above feed 10 as shown. The fractionation column has two (or more) reboilers 23 and 24 positioned below the feed point 10. From column 11 the following streams are taken: an overhead 13 of light hydrocarbons; a first side-cut 14 of product benzene; a second side-cut 16 of toluene (preferably taken between the two reboilers); and a bottoms fraction 15. The toluene cut is fed via 19 to dealkylation reactor 29, which may be thermal or catalytic, preferably the latter, and which preferably operates in the presence of hydrogen 27. After separation, stripping and optional clay treatment to remove colour impurities, the dealkylation effluent enters column 11 as above. The reboilers are preferably internally located in column 11 as shown, and liquid wells 25 and 26 may be provided to maintain liquid seals over the reboiler tubes, the lower well 26 being fed by recycling part of the bottoms fraction. Preferred dealkylation catalysts comprise a silica sol together with one of the following Group IV salts: tin chloride, nitrite or sulphate; titanium chloride, nitrate or sulphate; zirconium oxychloride, oxybromide or oxyiodide. The scheme enables simultaneous purification of the feed and the effluent to be effected. The claims are not limited to the production of benzene from toluene.
Patent GB-1039242-A (GB)
Title: Run-rail for a sliding window
IPC: E06B3/46
Filed: 1964-06-03
Abstract: 1,039,242. Runners for sliding windows. ELTREVA A.G. June 3, 1964 [April 9, 1964], No. 23039/64. Heading E1J. A run-rail 2 of light metal on the lower member 1 of a main frame, e.g. of aluminium, for the rollers 4 of a sliding window 5 is sheathed with wear-resistant chrome steel, preferably by sliding the sheath 3 on to the rail 2.
Patent GB-957063-A (GB)
Title: Brazing alloys
Inventor: CAPE ARTHUR TREGONING
IPC: B23K35/30
Filed: 1961-06-27
Abstract: A brazing alloy consists of 63-73% Mn with the balance Ni and Co neither of which is present in an amount greater than twice the amount of the other.  The alloy may also contain up to 2% B and one or more of Cr, Cu, Si, Fe, C, and Mo up to 5% in total.
Patent GB-211807-A (GB)
Title: Improvements in or relating to hand bags and the like
IPC: A45C13/00
Filed: 1923-09-15
Abstract: 211,807. Frank, L. Sept. 15, 1923. B a g s ; purses; wallets. - A handbag, attachÚ case, purse, wallet, or other receptacle is formed with a recess provided with a sliding cover d normally held in the closing position by elastic or spring means, such as elastic loops f, and provided with a tab g which it can be pulled back for access to the contents. The recess may contain letters &c., a powder puff or, as shown, a mirror.
Patent GB-174962-A (GB)
Title: Improvements in and relating to apparatus for feeding fuel to furnaces
IPC: F23K3/00
Filed: 1920-08-06
Abstract: 174,962. Karycheff, V., and Gagarine, Prince E. Aug. 6, 1920. Fuel, feeding.-Apparatus for feeding to furnaces pulverulent fuel mixed if necessary with liquid or gaseous fuel is mounted on a carriage A, Fig. 1, and comprises a grinding-mill B from which the fuel is carried by conveyers to two hoppers C, one only of which is shown. Each hopper is provided with a vertical shaft E provided with stirring-rods e and driven by gearing from the top. The fuel is fed from the hopper by a rotary bladed roller G of spherical or cylindrical shape into a shoot or casing H leading to a fan I. A metallic brush h attached to the wall of the casing H serves to clean the blades of the roller G. The casing H is provided with an adjustable air inlet and the fuel mixed with air is fed by the fan I to an injector J having an adjustable nozzle the size of the orifice of which may be varied to suit the fuel. When it is desired to inject the fuel by steam, the connections between the fans and the injectors J are closed and a separate hopper D delivers the fuel through orifices k, Fig. 5, into the injectors J, to which steam is supplied by pipes such as L, the ends of which mav be adjusted in relation to the openings k by nuts. Upon the carriage A is also mounted a sprav burner for liquid fuel with an adjustable nozzle and arranged between the pulverulent-fuel supply nozzles.
Patent GB-1317842-A (GB)
Title: Vascular prosthesis
IPC: A61F2/06
Filed: 1971-04-19
Abstract: 1317842 Vascular prosthesis SUTURES Inc 19 April 1971 [25 Aug 1970] 23179/71 Heading A5R A vascular prosthesis comprises a porous, multilayered tubular fabric 1 which itself comprises a first tubular fabric layer 2 forming an innermost layer of the prosthesis and containing an anticoagulant, and a second tubular fabric layer 3 surrounding the first layer and which is free of anti-coagulant, both layers being of woven or knitted construction. One or both of the fabric layers may be crimped and the layers may be fabricated from synthetic resinous fibres, e.g. polyethylene terephthalate, polyamides, acrylics, polyhalogenated hydrocarbons, or from mixtures of these fibres. The anti-coagulant-free layer 3 contains a heparin-inhibitor which may comprise a basic salt, e.g. a quaternary ammonium salt germicide, a protamine, or an antifibrimolytic agent.
Patent GB-250823-A (GB)
Title: Improvements in attachments for keys
IPC: E05B19/24
Filed: 1925-09-18
Abstract: 250,823. Gorst, P. E. Sept. 18, 1925. Keys.-A device for enabling keys, particularly those of pin-tumbler locks, to be identified by the sense of touch, comprises a plate secured to the head of the key and carrying distinguishing projection or indentations. In the form illustrated, the device is stamped from sheet metal and has two pieces 1 connected by the springy arms 2 between which the bit of the key is thrust; the pieces 1 then resiliently grip the head of the key. The key is identified by the projections 4. Inturned edges provided around holes 3 on the parts 1 may snap into the usual hole in the key head.
Patent GB-1499585-A (GB)
Title: Data processing system
IPC: G06F13/34
Filed: 1975-05-28
Abstract: 1499585 Digital computers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 May 1975 [28 May 1974] 23343/75 Heading G4A A data processing system comprises at least one CPU 2, at least one random-access store unit 3, at least one I/O processor unit, e.g. 4, each I/O processor unit having a respective group of peripheral units, e.g. 6, 7, all the above units being connected in parallel to a bus 1 for transfer of address, control and data information, the CPU and the I/O processor unit(s) each having a relative priority for taking over control of the bus 1 and means for making a request for such control to selection means 10 which grants the highest-priority request thus determining which unit will control subsequent information transfer over bus 1, the CPU having means to initiate the relevant I/O processor unit and peripheral unit for subsequent transfer under CPU programme control, each peripheral unit having means to send a transfer request signal over a respective line, e.g. 12 to the respective I/O processor unit to which the I/O processor unit can respond by requesting control of the bus 1 and, on obtaining it, connect the peripheral unit to the store unit over the bus 1 to control transfer between them, each peripheral unit having means to send an interrupt request to the CPU at end of transfer. Selection means 10 polls for bus control requests, the priority order being defined by the polling order. The CPU and each I/O processor unit has an ALU and a set of general registers, the general registers in each I/O processor unit consisting of two registers for each attached peripheral unit to contain control words for the transfer specifying transfer by word or character, direction of transfer, length of block to be transferred, effective start address in the store unit and (in the case of transfer by character) which half of the storage word. These control words are loaded from the general registers of the CPU using register-to-register transfer instructions in the CPU programme. At the end of transfer, the peripheral unit sends an interrupt-priority code (request) over an interrupt bus 11 to the CPU which, if the request is of higher priority than the current programme, interrupts the latter and performs an interrupt programme to check the performance of the transfer and de-activate the peripheral unit. A peripheral unit can send an interrupt request on error to send a status word to the CPU. Each I/O processor unit performs a priority selection, e.g. at 16 of the transfer requests from its peripheral units.
Patent GB-696432-A (GB)
Title: Improvements in or relating to photo-copiers
IPC: G03B27/16
Filed: 1950-09-25
Abstract: 696,432. Photographic contact printing. MASON & SONS, Ltd., E. N., and WOODHAM E. Sept. 24, 1951 [Sept. 25, 1950; Feb. 27, 1951], Nos. 23408/50 and 4730/51. Class 98 (ii). [Also in Group XL (b)] In a photographic contact printing machine of the type in which a tracing or negative and sensitized material are passed over the surface of a glass cylinder by a conveyer band or blanket, a photo-cell senses the transparency of the tracing and sensitized material and adjusts the speed of the conveyer. As shown, the tracing and sensitized material 21 are passed over a table 23 in which are apertures 24 below which are situated photo-electric cells 25, 33, and is then fed by the conveyer 11 over the surface of the glass drum 1 finally reaching a tray 19. A longitudinal light source 3 is situated at the centre of the drum and part of the light from this source is directed through the apertures 24 by mirrors 20. A third cell receives light from the same source but which has passed only through a piece of sensitized paper which has been exposed. In operation, arrival of the tracing obscuring cell cell 25 renders cell 33 operative after a time delay, its output being combined in opposition with that of the third cell. Thus the output of the two cells, which is used to control the speed of the motor driving the conveyer, depends on the transparency of the tracing and the sensitized surface. In a modification described with reference to Figs. 3 and 4 (not shown), a separate light source is used to energize the photo-electric cell which responds to the transparency of the tracing and printing material while this separate source may also energize the third cell through the piece of sensitized paper which has been exposed. Alternatively a second separate light source may energize the third cell. Specifications 483,607 and 696,575 are referred to.
Patent GB-156054-A (GB)
Title: Seam margin opening device for sewing machines
IPC: D05B35/06
Filed: 1920-08-10
Abstract: 156,054. Fairweather, W., (Singer Manufacturing Co.). Aug. 10, 1920. Sewing - machines; presser - feet; trimming.- The edges m, m<1>, Fig. 7, of two fabrics after being stitched together are turned back as shown to facilitate subsequent pressing, The fabrics are fed one above and the other below a separating-plate 12, Fig. 4, attached to the presser-foot and the edges are trimmed after being stitched together. The edge of the upper ply rests upon the neck 12<1>, Fig. 5, of the separating-plate and enters a guide scroll 16 by which it is turned back on to the upper surface of the fabrics. The lower ply, which lies beneath the neck 12, is turned downwards by a projection 18 on the underside of the presser-foot. The trimming-blade is carried by an arm pivoted above the work support and oscillated by an eccentric on a shaft beneath the work support. It co-operates with a stationary cutting-edge formed on the thread plate.
Patent GB-1467903-A (GB)
Title: Process for the preparation of dimethyl terephthalate
IPC: C07C69/76
Filed: 1974-05-24
Abstract: 1467903 Preparation of dimethyl terephthalate TEIJIN HERCULES CHEMICAL CO Ltd 24 May 1974 [28 May 1973 3 Sept 1973] 23416/74 Heading C2C A process for the direct preparation of dimethyl terephthalate comprises contacting molecular oxygen with a liquid phase reaction mixture comprising a catalyst, methanol and at least one aromatic compound selected from p-xylene and partial oxidation derivatives thereof, thus oxidizing the methyl groups and/or partial oxidation derivatives thereof of the aromatic compound to carboxylic acid groups which are esterified in situ by the methanol to produce dimethyl terephthalate, wherein the reaction is performed (i) in the substantial absence of halogen and halogen containing compounds; (ii) while maintaining the concentration of methanol in the reaction mixture at 0À5 to 15% by weight; (iii) in the presence of a catalyst composed of (A) manganese metal or a manganese compound soluble in the reaction mixture and (B) at least one metal or metal compound selected from cobalt, nickel, cobalt compounds which are soluble in the reaction mixture and nickel compounds which are soluble in the reaction mixture, the weight ratio of (A) to (B) each calculated as the metal, being from 97 : 3 to 1 : 99 and the total concentration of (A) and (B) calculated as the metals, in the liquid phase reaction mixture being 100 to 10,000 p.p.m. when (B) is cobalt or a cobalt compound and 100 to 5000 p.p.m. when (B) is nickel or a nickel compound; (iv) at a temperature of 160‹ to 280‹ C.