baber/WOPTO huggingface dataset:
Patent GB-1020798-A (GB)
Title: A valved bottle cap
IPC: B65D47/06
Filed: 1964-03-19
Abstract: 1,020,798. Valved bottle cap. V. J. ESPOSITO. March 19, 1964 [March 21, 1963], No. 11586/64. Heading B8T.  A container cap has a skirt 14, and an elastomeric diaphragm 15 surrounding an opening 16 and carrying valve-forming means 15c movable therewith to close the opening. In the relaxed condition of the diaphragm below the top of the skirt the valve is open. When the cap is screwed down (Fig. 5, not shown), engagement of the diaphragm and container neck causes the means 15c, in the form of bosses, to pinch closed the tube end 16c. In a modification (Fig. 6, not shown) a cap, having a snip-off spout tip 26b, is secured to a container and is closed by pulling the spout to raise the diaphragm into a stable position.
Patent GB-1115105-A (GB)
Title: Improvements in or relating to the manufacture of multiterminal electrical components
IPC: H01L21/00
Filed: 1966-03-17
Abstract: 1,115,105. Semi-conductor devices; capacitors. SIEMENS A.G. 17 March, 1966 [18 March, 1965], No. 11634/66. Heading H1K. In the manufacture of microplanar transistors each processed semi-conductor wafer is alloyed to a rung of a gilded iron-cobalt-nickel alloy ladder-like carrier 1 to form one electrode of the transistor. Silver wires 2 are spot welded across the ladder adjacent the rungs, and emitter and base leads are thermocompression bonded between these and contact areas on the transistor. That aide of the carrier bearing the transistors is then enveloped in an oven hardened potting compound such as an epoxy resin so that the devices and their leads are covered. The side member of the carrier is then cut away and the resin cut through between transistors to leave these secured to the remaining part of the carrier by the electrode connections. So that the transistors may subsequently be readily handled the remaining side of the carrier is encapsulated and then cut through between the groups of connections for each transistor, Fig. 6 (not shown). This encapsulation may utilize epoxy resins, silicone resins, polyester resins, low-melting point glasses, ceramics, or inorganic cements. An alternative carrier (Fig. 2, not shown) has the silver wires replaced by narrow rungs adjacent the main rungs and integral with the carrier which is punched from foil. Instead of transistors it is possible to similarly mount microplanar diodes, integrated circuits, resistors and capacitors.
Patent GB-1504115-A (GB)
Title: Method for preserving high moisture content agricultural grains
IPC: A01N59/26
Filed: 1976-03-23
Abstract: 1504115 Preserving grain INTERNATIONAL STOCK FOOD CORP 23 March 1976 11652/76 Heading A2D A method of preserving grain comprises adding to said grain a composition comprising (a) water, (b) a food grade organic acid or phosphoric acid, and (c) a synthetic organic cationic or anionic surfactant. The food grade organic acid may be formic acid, acetic acid, propionic acid or lactic acid. The surfactant may be a sodium alkylsulphonethanolamine, an ammonium- or sodiumalkylaryl polyethersulphonate or a sulphonated fatty acid.
Patent GB-131410-A (GB)
Title: Improvements in Electric Circuit Controlling Devices.
Filed: 1918-07-16
Abstract: 131,410. Marks, E. C. R., (Splitdorf Electrical Co.). July 16, 1918 Centrifugal actuation. -For closing automatically the primary circuit when an internal-combustion engine is started and opening the circuit when the engine stops, make-and-break contacts 17, 18 included in the circuit are arranged adjacent to a projection 28 on a collar 27, the upper conical portion 21 of the collar being covered with felt or the like and enclosed within a divided ring 20. The ring sectors are spring-pressed against the collar and are contained within a cage secured to the shaft 1, which also carries the cam for breaking the primary circuit and the rotary arm of a hightension distributor. A spring 30 presses the collar 21 into the ring. Rotation of the shaft 1 gives a partial rotation to the ring 21 and causes the finger 28 to close the contacts 17, 18. As the speed increases, the sectors 20 separate, but the cone is pressed upwards by the spring 30 and. on account of the shape of the stop 29, the contacts 17, 18 are kept closed by the finger 28. When the shaft 1 ceases to rotate, the spring pressure on the sectors of the ring 20 depresses the cone 21 and the contacts are allowed to open.
Patent GB-561180-A (GB)
Title: Improvements in or relating to the production of organic peracids and salts thereof
IPC: C07C409/30
Filed: 1942-08-19
Abstract: Peracids and their salts are made by reacting an organic acid anhydride with an aqueous solution of an inorganic peroxygen compound, there being present sufficient alkali to cause the final pH to be between 5 and 11.  Suitable inorganic peroxygen compounds are hydrogen peroxide, sodium peroxide and sodium perborate, and suitable anhydrides are acetic, succinic, phthalic, propionic, butyric, valeric, crotonic, maleic anhydrides, and the anhydrides of hydroxy acids such as malic, tartaric and lactic acids, aromatic acids, aliphatic and aromatic sulphonic acids and acids derived from heterocyclic compounds.  The anhydrides of benzoic, glycollic, cyclohexene carboxylic, benzene sulphonic, nicotinic, quinolinic and adipic acids are suitable.  Examples describe the production of peracetic acid from acetic anhydride and hydrogen peroxide. Specification 549,015, as open to inspection under Sect. 91 is referred to.  Reference has been directed by the Comptroller to Specification 550,490.
Patent GB-1300118-A (GB)
Title: Improvements relating to semiconductor strain transducers
Inventor: JONES CHARLES TREVOR
IPC: G01P15/12
Filed: 1970-03-11
Abstract: 1300118 Semi-conductor strain transducers FERRANTI Ltd 19 April 1971 [11 March 1970] 11701/70 Heading H1K A strain transducer for detecting accelerations, forces, or fluid flow rates in one direction consists of a plurality of PN junction isolated piezo-resistive elements formed in each of two flexible semi-conductor beams. Uniform stress is achieved in the beams, which extend normal to said direction from clamped ends to a common point at which they support a seismic mass by a reduction in section of each beam at a uniform rate from the clamped end. In the embodiment which is an accelerometer P type strain sensors 13 are formed by planar diffusion into an N type epitaxial layer on a P type silicon substrate and lie along 111 and 110 crystallographic directions respectively. After diffusion and oxide passivation unwanted parts of the substrate and epitaxial layer are removed to leave two inwardly tapering beams 16 supported by a thick peripheral ring 12 and joined by an integral seismic mass 17. Aluminium tracks are then provided, which interconnect the sensors, e.g. into a bridge circuit and extend to contact pads to which fold wires are thermocompression bonded. The assembly is sealed in an evacuated housing.
Patent GB-152366-A (GB)
Title: Improved manufacture of alkali percarbonates
IPC: C01B15/10
Filed: 1917-08-20
Abstract: Solid alkali percarbonates are obtained by treating sodium carbonate with hydrogen peroxide in presence of sufficiently limited quantities of water to produce the solid product directly, and of sodium chloride for salting out the product.  A previous calcination of the sodium carbonate, and the addition of anticatalysers such as sodium silicate, magnesium chloride and magnesium-sodium silicate are advantageous.
Patent GB-849950-A (GB)
Title: Improvements in and relating to inspection chambers
IPC: E03F5/02
Filed: 1958-04-16
Abstract: 849,950. Inspection chambers. MATTHEWS, R. K. April 23, 1958 [April 16, 1958], No. 12048/58. Class 33. A sectional drainage inspection chamber has its vertical walls provided with shaped weakened parts 10 in the form of blanks capable of being knocked out to leave holes having bevelled rims to allow the insertion of pipes at any angle. As shown in Fig. 4, weakened parts are formed during casting with bevelled rims 11 surrounding a double convex part 12. The upper part of the chamber is stepped at 3 to form a shoulder 2 having a channel 5 whereby a number of chambers may be erected one on top of another with grease and asbestos or cement packing between them. The uppermost chamber may be fitted with a lid resting on its shoulder 2. The chambers may be made by casting concrete into a mould made of steel, wood, plastic or concrete.
Patent GB-110346-A (GB)
Title: Improvements in Apparatus for Automatically Exchanging Incandescent Bodies in an Incandescent Gas Light Arrangement.
IPC: F23D14/30
Filed: 1917-08-22
Abstract: 110,346. Svenska Aktiebolaget Gasaccumulator. Oct. 10, 1916, [Convention date]. Mantle supports and accessories.-In apparatus of the type in which a broken incandescent mantle is automatically replaced by a sound one by the action of the burner flame on a releasing-device, such as a pin of combustible material, rods 1, 2, 4 carrying slidably mounted mantle - holders 18 are each carried by parallel links 8, 9 within a casing 6, and rollers 10 on the links 9 bear against a cam-wheel 11 or the like driver, preferably by a spring 15 acting through toothed gearing 16, 17. When a mantle-holder is brought into position round the burner head, the rotation of the cam-wheel 11 is prevented by the mantleholder abutting against the burner head. A spring 22 tends to force an arm 24 on the mantlebolder against a pin 23 of combustible material, so that, on the pin 23 being consumed owing to the breakage of the mantle, the holder is slid downwardly on its rod, thereby releasing the cam-wheel 11, which continues to rotate until another mantle holder is brought into position against the burner head.
Patent GB-732122-A (GB)
Title: Improvements in or relating to phase shift devices
Inventor: BRANDON PERCY SAMUEL
IPC: H01P1/185
Filed: 1952-05-13
Abstract: 732,122. Wave-guides. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BUCKINGHAM, J. April 16, 1953 [May 13, 1952], No. 12123/52. Class 40 (8). A phase-shift device, e.g. for use in a frequency discriminator, comprises a wave-guide G bent into a complete turn, the end of the guide being short-circuited at S and having a directional coupling X1 between the parts of the guide at the beginning and end of the turn and a directional coupler X2 which enables energy to be fed into and phase-shifted energy to be taken out of the device. The guide may be of fixed electrical length or it may be made variable by inserting a piece of non-lossy dielectric material an adjustable amount through a slot into the guide or by inserting a gas discharge tube into the length of the guide. The dielectric material or the tube may be inserted at P.
Patent GB-960905-A (GB)
Title: A process for the purification of monocarboxylic acids prepared from olefins, carbonmonoxide and water
Filed: 1961-04-05
Abstract: Monocarboxylic acids prepared by reacting an olefin with carbon monoxide and water in the presence of a catalyst comprising phosphoric acid, boron trifluoride and water, or boron trifluoride and water, are purified by treatment with a compound forming a complex with any metal compounds present, washing with aqueous alkaline solutions and then distilling.  The complexing and washing may be in either order, or simultaneous.  Preferred complexing agents are di- or poly-basic acids, such as oxalic, tartaric, or citric acids, possibly in admixture with mineral acids, but may also be hydroxy acids, e.g. gluconic, amino acids e.g. glycocoll, nitrilotriacetic acid, or ethylene diamine tetracetic acid, alkali metal salts of these acids, acetylacetone and derivatives thereof, e.g. thienoyl trifluoroacetone, and dithizone.  The aqueous alkali preferably has a pH of less than 8.5.  The example illustrates the purification of acids prepared from a thermally cracked paraffinic feedstock, with comparative experiments describing the purification by distillation alone, and by washing with alkali and then distilling. Specification 798,065 is referred to.
Patent GB-1376953-A (GB)
Title: Refrigerating apparatus
IPC: F25D21/14
Filed: 1972-03-15
Abstract: 1376953 Refrigerators COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT 15 March 1972 [16 March 1971] 12184/72 Heading F4H In an arrangement for disposing of defrost water from an evaporator, as disclosed in parent Specification 1,265,860, the evaporator tray 2 comprises a rectangular receptacle whose base includes a part in intimate heat exchange contact with the casing of the motor compressor 3 and a part extending horizontally outwardly from the sides of the compressor casing. One side wall 14 of the tray is inclined inwardly to define a free passage between the tray and an inclined heat insulating panel 9 forming part of the refrigerator casing. The other side walls 11, 12, 13 of the tray extend vertically. The tray 2 which may be of thermoplstics material, is fixed on the compressor casing by means of a sealing washer 16, a protective washer 17 and a clamping nut 18. An overflow device 8 is provided to avoid wetting the electrical parts of the compressor in the case of accidental overfilling of the tray.
Patent GB-902473-A (GB)
Title: A multi-wave direction finder
IPC: G01S3/74
Filed: 1959-04-10
Abstract: 902,473. Electric analogue calculating systems. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. April 10, 1959 [April 12, 1958], No. 12195/59. Class 37. [Also in Group XL (c)] A finder of the azimuths of n incident radio waves of the same wavelength L comprises 2n aerials (excepting for n=1, when the three aerials are used) whose output voltages are used in a computer to solve n equations which include terms dependent on wave azimuth and elevation and the Cartesian co-ordinates of the aerials, to provide voltages corresponding to the sine and cosine components of the n azimuths. Quantities U m , v m  are defined as (2#/L) cos E m  cos A m  and (2#/L) cos E m  sin A m  respectively, where E m  and A m  are the elevation and azimuth respectively of the mth wave. For n= 1, the output voltages V 1 , V 2 , V 3  of respective aerials 5, 6 and 7 with spacings a, Fig. 2, are related to quantities u and v by the equations V 1  exp (-j a u)-V 2 = 0 and V 1  exp (-j a v)-V 3 =0, where j is the operator #-1. To obtain voltages proportional to u and v, voltage V 1  is phase shifted manually or automatically in units 11, 12, Fig. 3, until there are zero outputs from integrators 13, 14 to which are fed also voltages V 2 , V 3  via terminals 9, 10 respectively. For n=2 the outputs V 1  . . . V 4  of respective aerials 1 . . . 4 with spacings a, Fig. 1, are related to quantities u 1 , u 2 , v 1 , v 2  by the equations In the computer, Fig. 4, the voltages V 1  . . . V 4  are applied to respective terminals 17 . . . 20. Voltages V 1 , V 3  are each phase-shifted in unit 21 and the rectified outputs of integrators 22, 23 corresponding to the numerator and denominator respectively of the first part of equation (1), are compared in integrator 26. Phase-shifter 21 is adjusted manually or automatically until integrator 26 output is zero; a voltage proportional to u 1  is thus available at terminal 27. Integrator 22 output is phaseshifted in unit 28 adjusted for zero output from integrator 29; a voltage proportional v 2  is thus available at terminal 30. Similarly, voltages proportional to v 1 , u 2  are available from units 32, 32a respectively. The four outputs are applied to the deflection system of a doublebeam cathode-ray tube (C.R.T.), or to those of two C.R.T.'s for the azimuth indications. In order to prevent the upper and lower computer branches giving the same values of u 1  and u 2  or v 1  and v 2 , conductor 31 is provided. An aerial arrangement and a computer for n=3 is described, Figs. 5 and 6 (neither shown). It is stated that angles of elevation may also be determined and that the directions of waves of different radio frequencies may be computed. Frequency-selective amplifiers may be added to the aerial outputs.
Patent GB-381880-A (GB)
Title: Improvements relating to fillers for egg boxes
IPC: B65D85/32
Filed: 1932-04-28
Abstract: 381,880. Egg cases. BEST, F. R., 17, Queen Street, Lurgan, Co. Armagh, Northern Ireland. April 28, 1932, No. 12215. [Class 18.] A corrugated cardboard &c. flat 3 for egg boxes of the type upon which a filler 7 is placed of which the longitudinal strips rest in corrugations of the flat and transverse strips rest in grooves 6 formed across the corrugations, is arranged so that at the bottom of each compartment two corrugations are positioned so that each egg rests on and between two cushioning members. Such flats may also be used instead of wood wool provided at the top and bottom of multi-layer egg cases.
Patent GB-138133-A (GB)
Title: Improvements in double acting two-stroke cycle internal combustion engines
IPC: F02B75/00
Filed: 1918-07-27
Abstract: 138,133. Summers, L. F., and Hepburn, J. July 27, 1918. Two-stroke-cycle engines.-Relates to doubleacting engines in which a hollow piston 3 works over a fixed or reciprocating abutment 4, the charges being drawn in and compressed in the chambers 17, 17<a> and transferred to the combustion chambers 16, 16<a>. Ports are provided in the hollow piston and cylinder walls, whereby all valves are dispensed with, and outside connecting- rods are used, both ends of the piston being substantially plain and having no openings or external connexions. As shown in Fig. 1, a charge is admitted to the pump chamber 17 through ports 8, 9 at the end of the compression stroke in the left-hand cylinder. During the power stroke, this charge is compressed in the chamber 17 and passes through a transfer passage 10 in the cylinder walls when a port 11 is the piston registers with the port 10<b> after the exhaust port 5 has been opened. Outside connecting-rods are attached to the ends of a gudgeon 13 which passes through slots in the abutment 4 and in the hollow piston.
Patent GB-256682-A (GB)
Title: Improvements in or connected with meat slicing machines
IPC: B26D1/18
Filed: 1925-05-12
Abstract: 256,682. Automatic Scale Co., Ltd., and Turner, W. May 12, 1925. Cutting slices in succession.-In a slicing machine of the reciprocating disc knife type, the knife is driven by a pinion on a handle which pinion also engages with a rack whereby rotation and traversing of the knife is effected, a free wheel device being adapted to permit a quick return of the knife without rotation of the handle. The slice feed mechanism is adapted for manual operation. As shown in Figs 1 and 5, the spindle 17 of the handle 18 carries a pinion 19 having a free-wheel connection therewith and engaging the rack 13 and the pinion 20 on the knife spindle 21. By rotating the handle 18 in one direction the knife is rotated and moved through the foodstuff and the return is effected by drawing the knife carriage, which is guided in a slot 13<a> in the rack bar, backward's by pulling on the handle. The lower edge of the knife travels in a groove in a strip of hardened steel inset in the meat table. The feed mechanism comprises a feed screw 23 threaded through the boss 24a of a spiked clamping-bar 24, pins projecting inwardly from the boss 24<a> engaging the threads of the screw 23. A lever 27<a> is mounted, by a one-way drive 23 and is adapted to oscillate adjacent to a quadrant 29 having holes 29<a> in which a stop pin may be placed. The bar 24 moves the food over the meat table 8 and the rear portion of the table may be arranged to move, on rollers, towards the knife to facilitate the feeding of large pieces of meat. A knob is provided on the other end of the feed screw for coarse feeding or initial adjustment. The knife guard 15 carries grinding mechanism 34, 35, the wheel 35 being normally kept out of engagement with the knife edge by a coil spring. A slice deflector 15<d> is provided. According to the Provisional Specification, the free wheel in the knife operating mechanism is arranged on the knife spindle to effect a non-rotating return of the knife.
Patent GB-895258-A (GB)
Title: Improvements relating to selenium rectifying cells
IPC: H01L29/00
Filed: 1960-04-06
Abstract: 895,258. Semiconductor rectifiers. CKD MODRANY, NARODNI PODNIK. April 6, 1960 [April 8, 1959], No. 12297/60. Class 37. A selenium rectifier cell comprises a base-plate 1 supporting a selenium layer 3 sandwiched between layers 2 and 4 of the same metal, layer 2 being from 20 to 100 times thicker than layer 4, and a counter electrode 5. The selenium may be mixed with elements from the 3rd, 5th and 8th groups of the Periodic System, e.g. thallium or bismuth, and the metallic layers may be of metals, or alloys of metals, belonging to the 3rd, 4th and 5th group and the 5th series of the Periodic System. One of the layers may be in the form of a grating. The cell may be heattreated before application of the counterelectrode and then, after application of the counter-electrode, submitted to further heat treatment whilst simultaneously passing a forming current.
Patent GB-673774-A (GB)
Title: Improvements in or relating to the construction of viscous friction dampers
IPC: F16F9/30
Filed: 1950-05-17
Abstract: 673,774. Torsional vibration dampers. HOLMES & CO., Ltd., W. C., CROSET, L. P., and HOLMES, F. B. May 17, 1950, No. 12303/50. Addition to 673,773. Class 108(iii) In a modification of the method of constructing the viscous friction damper disclosed in the parent Specification, the first component 12, Fig. 1, is formed or fabricated with an additional or extended inward flange 12b for attachment of the damper to a shaft (not shown). In another embodiment, Fig. 3, (not shown), the flange 12b is offset from and is parallel to the flange 12a of the component 12. In a further embodiment, Fig. 2, (not shown), two dampers of Fig. 1 are connected back-to-back by an external peripheral fillet between adjacent outer corners of the two first components 12. A rebate or groove may be formed in the outer edge of one component to receive the outer edge of the other component prior to and during welding.
Patent GB-215953-A (GB)
Title: Improvements in protected metal articles
IPC: E04B1/64
Filed: 1923-05-08
Abstract: 215,953. Young, J. H., and Robertson Co., H. H. May 8, 1923. Coating.-Metal articles, either rigid or flexible, and made of a corrodible metal such as iron or steel, are provided with a protective covering consisting of a layer of asphalt or like bituminous material enveloping the said article and a relatively thin foil of relatively non-corrodible metal adhesively fixed to the metal article bv the said bituminous material. The sheets c of non-corrodible metal such as copper, zinc, and aluminium, may be applied to the opposite surfaces and sides of the article a covered with bituminous material b so as to overlap, as shown.
Patent GB-180872-A (GB)
Title: Improvements in or relating to boats with collapsible bulwarks
IPC: B63C9/02
Filed: 1921-09-29
Abstract: 180,872. Marks, E. C. R., (Soc. Anon. Italiana G. Ansaldo & Co.). April 29, 1921. Collapsable vessels.-In lifeboats fitted with collapsable bulwarks which are adapted to be automatically raised when the weight of the boat is taken by the davit tackles, disengaging-gear, comprising a counterweighted pivoted hook A carried by straddled levers F pivoted to the bottom of the boat, is provided with a pair of rollers B mounted on the transverse rod H, the rollers co-operating with fore-and-aft bars C connected with the bulwarks to raise the latter when the load of the boat is taken up.