baber/WOPTO huggingface dataset:
Patent GB-565186-A (GB)
Title: Improvements in or relating to devices for supporting and bracing pipe lines
IPC: F16L3/217
Filed: 1943-03-09
Abstract: 565,186. Supporting piping systems. GENERAL SPRING CORPORATION. March 9, 1943, Nos. 3831 and 3832. Convention dates, March 9, 1942, and Nov. 26, 1942. [Class 99 (ii)] [Also in Group XXXII] A steadying device for piping systems for preventing vibration while allowing expansion movements comprises a hydraulic dashpot having piston and cylinder elements, one connected to the piping and the other to a fixed support with a restricted passage between one side of the piston and the other, the said passage allowing unimpeded expansion movements, but being effective to resist the flow necessary to vibratory movement of the piping or movement due to the shock of collision or ex-, plosion. A line 10 passing, for instance, from a steam turbine to a condenser may be suspended from a support 12 by a number of hangers 11 of the spring support type used in combination with the steadies mentioned above. Each hanger comprises a universally suspended rigid tube 13 connected by an eye 22 to a cylinder 20, Fig. 3, having a spring-supported piston 25, the rod of which passes through a stuffing-box 44 in the cylinder end and is connected by an eye 27 to flanges on a ring 30 round the pipe. The piston is supported by a pair of coaxial springs 32, 33, the inner spring having coils of variable pitch (shown as a progressively increasing pitch) to render the system non-resonant. The cylinder 20 is filled with oil which may pass from one side of the piston to the other through passages 37, 40, 41. A sleeve 51 telescopes over the cylinder 20 and coacts with graduations on the cylinder to indicate the position of the piston. The hangers are used at intervals to support the weight of the pipe while steadies are preferably arranged at irregular intervals along and at varying inclination to the pipe-line, Fig. 2. These steadies comprise a rigid tube 13a connected to an oil-filled dashpot cylinder 66, Fig. 5, the piston-rod of which passes through multiple packing 112, preferably'of oil-resisting material such as Neoprene and is connected through a fitting 76 and universal links to the pipe 10. Fluid passing from one side to the other of the piston is controlled by a taperended spindle 98 which may be advanced by a hand-operated screw to vary the orifice 70. Alternatively, a rotary type of valve may be employed. The flow is such that normal expansion movements are freely permitted, but vibrations or sudden shocks are effectively damped. In a modification, the above steady is used in conjunction with hangers of constant support type, such as that described in Specification 467,273, the simple main springs described in this Specification being replaced by spring dashpots. In another modification, the hanger may be of the kind described in Specification 565,189. Specification 535,823 also is referred to.
Patent GB-721959-A (GB)
Title: Improvements in and relating to electric wafer switches
Inventor: WOOD VICTOR JAMES
IPC: H01H19/58
Filed: 1952-02-13
Abstract: 721,959. Mechanical switches, without quick action. N.S.F., Ltd. Jan. 28, 1953 [Feb. 13, 1952]. No. 3853/52. Class 38 (5). The stator of a wafer switch comprises an insulating annulus 12 tc which contacts 19 are riveted at 18, slots 17 being formed in the outer edge of the annulus into which the terminal lug ends 21 of the contacts are bent at right angles, whereby rotation of the contacts about their rivets is prevented. The contacts 19 have pairs of jaws 20A Fig. 2 (not shown) receiving a rotor contact 16, 22, the lowermost jaw of each pair being received in a corresponding one of a number of slots 14 formed in the inner edge of the annulus 12. Tongues 13 between the slots 14 are engaged by annular members 16 fixed to each side of the rotor 15 to support the latter within the stator. In a modification (not shown) the rotor moves rectilinearly. Specification 478,391 is referred to.
Patent GB-1445629-A (GB)
Title: Prostaglandin derivatives
IPC: C07D317/72
Filed: 1973-10-18
Abstract: 1445629 Prostaglandins AMERICAN HOME PRODUCTS CORP 18 Oct 1973 [27 Oct 1972 26 July 1973] 3863/76 Divided out of 1445628 Heading C2C Novel compounds I are prepared by oxidation of compounds Ia with dichlorodicyanoquinone. Compounds Ia are prepared by reducing 15-PGA 2  or 15-epi PGA 2  with sodium boro. hydride.
Patent GB-556354-A (GB)
Title: Improvements in or relating to the production of dies for drop forgings
IPC: B21K5/20
Filed: 1942-03-10
Abstract: 556,354. Drop forging. FOSTER, H., and DONCASTER & SONS, Ltd., D. March 10, 1943, No. 3885. [Classes 83 (ii) and 83 (iv] A series of dies for use in the production of drop forgings are themselves produced by drop forging from a single pair of master dies, for each die part, aided, in the case of intricate forgings, by preparatory or breaking down dies. In cutting the master dies double contraction is allowed for. One die part a, Fig. 3, for the production of a rocker has the recess m surrounded by a parting surface k formed by a recess j sunk round the replica of the rocker part d in the master die b, Fig. 1. The die b pairs with a die c and these dies are formed at h to provide a narrow opening or vent for the escape of a limited amount of flash as determined by the capacity of the space g, and by this means flow of metal is maintained completely to fill the die cavity. The production of the other die part is similar.
Patent GB-470026-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J43/20
Filed: 1936-02-08
Abstract: 470,026. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BRETT, G. F. Feb. 8, 1936, No. 3932. [Class 39 (i)] An electron multiplier has in cascade a number of electron sources one of which is a primary source and the others are secondary emitting, each source forming part of an electron gun. As shown, each source consists of electron emitting material arranged at the bottom of a rectangular depression or pocket C<1>, C<2>, C<3> formed in or behind an apertured plate, which is mounted closely behind an apertured anode AA<1>, AA<2>, AA<3> respectively. The primary source C<1> may be thermionic or photo-electric. The output electrode A is in the same plane as the plates of the cathodes. Increasing potentials are applied to the guns and to the output electrode. In a modification an apertured plate is arranged between each cathode and anode and is either connected directly with the cathode or forms a control electrode.
Patent GB-1335163-A (GB)
Title: Construction set for the erection of threee-dimenional frame- works
IPC: E04B1/19
Filed: 1972-01-28
Abstract: 1335163 Joining structural members A MYLAEUS [trading as MYLAEUS Gebr] 28 Jan 1972 [1 Feb 1971] 4134/72 Heading E1K [Also in Division F2]  A construction set for the erection of spatial frameworks consists of tubular rods or stays 19, ball-shaped joint elements 11 each provided with a number of threaded bores 110, connector elements 18 adapted to be mounted on the ends of the tubular rods or stays 19, and bolts 15 each having a head 150 adapted to engage a shoulder 181 within an axial bore of a connector element 18 and threadably engageable with the threaded bores 110 for securing the assemblies of rods or stays with their connector elements to the joint elements in predetermined angular spatial relationship, each connector element having diametrically opposed openings 180 through which a bolt 15 may be inserted, and the bolts having hexagonal recesses in their heads for engagement by a hexagonal key of a tightening tool 16, the openings 180 having a sufficient circumferential width to allow the necessary angular movement of the tool to tighten the bolts. To this end, the openings may be elliptical at the exterior face of the connector elements (Fig. 1, not shown) or, where less strength is required, the openings, as shown in Fig. 7, open via a constricted mouth to the ends of the connector elements to which the rods 19 are secured. In either case, the rods are secured to the connector elements 14 or 18, respectively, by welding around or partly around the circumferential edges of the rods. After insertion of the bolts, cover plates 182, Fig. 8, are inserted to prevent the bolts falling out during transport of the rods after fitting of the connector elements and bolts. The cover plates have ears (Fig. 5, not shown) by which there are wedged into the constricted mouth of the openings 180, Fig. 7, or otherwise secured where these openings are elliptical (Fig. 1, not shown).
Patent GB-290374-A (GB)
Title: Improvements in high speed grinding mills
IPC: B02C2/10
Filed: 1927-02-15
Abstract: 290,374. Baier, G., and Hammer, A. Feb. 15, 1927. Conical mills; feeding-devices for granular and like materials. - In high-speed wetgrinding mills for fine powders which are required in practically colloidal fineness and in which the material to be treated is acted upon by air presssure in a closed container, means such as a screw conveyer is provided for mechanically feeding the material from the container under pressure between the faces of the grinding- members. Stirrer arms or like agitators may be provided to prevent clogging of the wet material in the container, and may be carried on the same shaft as the screw conveyer. The finegrinding mill shown comprises a stationary upper stone 15 and a lower running stone 12 carried by a vertical shaft 1 supported in ball bearings 4 in the bed frame 2 and grinding-casing 3. Threaded collars 5 hold the ball bearing rings to the shaft, and the outer ball race rests in a housing 6 which can slide in a box 7. The socket 11 for the conical runner 12 fits on a conical part 10 of the shaft 1 and is formed with snugs 13, while its bottom, which forms a platform for the runner. has a downwardly-projecting rim 14 embracing the top end of the upper casing 7 to prevent the material from entering the ball races. The fixed stone 15 is secured to the cover 16 of the casing 3 by means of studs 18 passing through holes or slots in a rim 17 on the stone and screwing into a retaining flange or ring 21. The baseplate 24 of the container 23 is held by the studs 18 and is formed as a conical funnel leading to the central inlet 25 of the grinding-chamber. Packing-rings 22, 26 are placed between the cover 16 and stone 15 and between the cover 16 and plate 24. A conveyer screw 27 on a sleeve on the upper end of the shaft 1 works in the inlet 25, and a boss 28 on the upper end of the screw carries agitator wings 29. The cover 31. has a pressure air inlet and pressure gauge 32 and a filling opening 33. The shaft 1 has a spherical hard steel insert 36 at its lower end, which rests on a pin 37 carried by a lever 38 pivoted at 39 and adjustable by means of a screwed rod 44 and nut 48. Horizontal and vertical scales 49, 50 over which work pointers 51, 52 are provided for use in adjusting the stone 12. An oil bath 41 is formed on the lever 38. An annular groove 54 is provided in the bottom of the casing 3 and leads to an outlet 55 and delivery pipe 57.
Patent GB-230044-A (GB)
Title: Improvements in methods of treating timber for preventing subsequent shrinkage
IPC: B27K5/04
Filed: 1925-02-16
Abstract: 230,044. Spiritus-Presshefe u. Chemische Fabriken Hamburger Kuffner Akt.-Ges., and Murmann, E. Feb. 27, 1924, [Convention date]. Wood, treating with gases.-To prevent subsequent shrinkage wood is subjected in closed vessels to the simultaneous action of ammonia and steam at a temperature not exceeding 120‹ C.
Patent GB-378098-A (GB)
Title: Improvements in or relating to cinematographic projectors
IPC: G03B33/08
Filed: 1931-02-11
Abstract: 378,098. Kinematograph projectors. KINGSTON, A. W.. 9, Newman Street, and BOOTH, M. O., HAWORTH- 15, Great Stanhope Street, Mayfair, both in London. Feb. 11, 1931, No. 4338. [Class 97 (i).] Apparatus for projecting separate colourrecord images simultaneously through separate lenses, and through filters in a rotating filtercarrier, each image being projected through each lens in turn, is adapted for monochrome projection by making the filter-carrier movable to a position wholly clear of the beam from one lens, and providing masking means for the other lenses ; adjustments of the optical system may also be made, and connections enabling all the changes to be made simultaneously may be provided. As shown, mirrors 8, 10 reflect the beam from the lamp to a triple gate 12, and to prisms and lenses (not shown), arranged one above the other. When colour-record images are being projected, the beam passes through a cylindrical lens 14 to ensure proper illumination of the gate, and through filters 18, 20, 22 so arranged in a carrier 16 that each image is projected by each lens in turn through a filter of appropriate colour. The carrier 16 is shown raised out of operative position, and is mounted for such movement on an arm 28 secured to a spindle 26 and rotatable therewith by a handle 30 ; an arm 46, also secured to the spindle 26, is connected by a link 44 to a plate 42 movable horizontally to mask the uppermost and lowermost gate apertures when the carrier 16 is raised. A second arm 50 is secured to the spindle 26 and is connected by a link 52 to a lever 54 which is pivoted at 56, and engages between rollers 38 on a frame 48 to raise the frame simultaneously with the carrier 16 ; the frame 48 carries the cylindrical len$14, and a converging lens 24, and when raised moves the lens 24 into the beam, in place of the lens 14 to produce a more concentrated light patch on the film. The carrier 16, when lowered is rotated by the engagement of a pin 40 in a slot in a disc 38 on a spindle 34 driven through a pinion 36.
Patent GB-683412-A (GB)
Title: Process for grinding material containing cellulose
IPC: D21B1/06
Filed: 1950-02-21
Abstract: A process for grinding cellulose materials with water at elevated temperatures for the production of cellulose pulp, comprises mixing the material and water and subjecting the mixture to a grinding action at a temperature which under atmospheric pressure suffices to produce steam, the process being carried out with the application of such a pressure that the formation of steam is avoided.  Temperatures of 120 DEG -140 DEG C and pressures of 2-6 atmospheres may be used with a mixture of about 10 per cent cellulose and 90 per cent water.
Patent GB-575958-A (GB)
Title: Improvements in hydraulic machines
IPC: E21C29/02
Filed: 1944-03-09
Abstract: 575,958. Mining-machines. MAVOR & COULSON, Ltd., GALLOWAY, W. S., and ANDERSON, J. March 9, 1944, No. 4443. [Class 68 (i)] [Also in Group XXIX] In a coal-mining machine comprising jacks A adapted to jam between the floor and roof and a wedge cutter B operated by a hydraulic ram C connected to the jacks, pressure liquid is supplied by a pump 6 through the ram C and a control valve 10 to the jacks: When the jack pressure rises, the valve 10 moves automatically to divert the pump supply to an intensifier 11 which then supplies high pressure liquid to the jack. A distributing valve 8 is now moved manually to relieve pressure on the back of ram C and effect operation of the wedge. At the end of the stroke the valve 8 is again moved to reverse operation of the ram, at the same time exhausting the jacks. The latter are thus moved forwardly, the wedge remaining stationary, into position for a new stroke. A relief valve 9 automatically relieves pressure on the back of the ram should the operator forget to move the valve 8 when intensified pressure is applied to the jacks. Specification 565,342 is referred to.
Patent GB-736360-A (GB)
Title: Process for the decomposition of lignin and lignin-containing material
IPC: C08H5/00
Filed: 1953-02-17
Abstract: The invention comprises a process for the production of phenols and other distillable products from lignin and lignin-containing material by hydrogenation and hydrolysis at a pressure of at least 350 atmospheres and a temperature of at least 280 DEG  C. in the presence of a hydrogenation catalyst according to which cobalt-chromium oxide is used as catalyst.  The catalyst may be one formed by precipitating cobalt chromate on the lignin, which is then subjected to the reaction; the catalyst can also be prepared by a process analogous to the preparation of an Adkins copper-chromium oxide catalyst.  The products comprise phenols including catechol.  In examples, (1) lignin, water and cobalt chromate are heated at 320 DEG  C. with hydrogen at 400 atmospheres to give an ether-soluble product containing phenols; (2) evaporated sulphite liquor neutralized with sodium hydroxide together with Schaller lignin, which act as a carrier for a cobalt chromate catalyst, are heated under the same conditions as in (1).  The tarry mass in the product is separated from the aqueous liquor, dissolved in acetone and filtered. Distillation of the filtrate gives a distillate comprising phenols. A distillable product is also extracted with ether from the aqueous part of the reaction products.
Patent GB-1424992-A (GB)
Title: Spark igni'ion internal combustion engine
IPC: F02P9/00
Filed: 1974-01-31
Abstract: 1424992 Preventing running-on of internal combustion engines FORD MOTOR CO Ltd  31 Jan 1974 [5 Feb 1973] 04501/74 Headings F1B and F1K In an internal combustion engine having a spark ignition system and means H to introduce air to the induction system D on engine shut-down, to prevent the engine from continuing to run, means I are provided to delay the de-energization of the ignition system during shut-down to permit ignition of any combustible mixture in the engine while the air is being introduced. When the ignition switch C is opened current flow to the solenoid assembly 28 stops allowing the element 26 to close the contacts 27. Current can then flow to a contact 39. Upon initiation of engine shut-down the  manifold vacuum is usually high so that the element 38 permits current to flow to the solenoid actuator 18 which results in opening of the duct 10. When manifold vacuum decays to a predetermined level the contacts 39 will be opened causing closing of the duct 10 and breaking of current flow to the spark ignition system. As shown the engine exhaust system F is associated with a catalytic converter G.
Patent GB-978563-A (GB)
Title: A control system for a rotary well drilling rig
IPC: E21B19/08
Filed: 1961-02-07
Abstract: 978,563. Rotary drill rigs. V. S. KAZMIN, V. N. KOMAROV, I. N. KUDRIASHOV, and B. S. ANTONOV. Feb. 7, 1961, No. 4511/61. Heading E1F. In a drill rig the pressure and torque exerted on the bit are co-related control factors regulating the descent of a drill bit in a borehole. A hoist winch 8 drives or is driven by a hydraulic pump-motor unit. Lowering of the drill string can occur if the unit 11 can act as a pump and circulate liquid past valves 16 and 18. The position of valve 16 is regulated by the torque conditions experienced by the bit by either the swingably mounted reduction gear 29 of the rotary table 4 operating a piston in a cylinder 35 connected by line 27 to the chamber 15 of valve 16 or by an electro magnet associated with the power supply of an electric motor driving the bit, the magnet regulating a piston 38 in a cylinder 39 connected by said line 27 to said chamber 15. The valve 18 is manually set to a predetermined pressure. The pumpmotor unit 11 is driven if the valve 16 interupts the return flow, circuit 24, 22 of a continuously driven pump 23 causing diversion of liquid under pressure from the pump 23 through valve 26 and line 14 to unit 11. An alternative is for a build up of pressure in line 27 to operate piston cylinder unit 40 to close switch 41 of motor 43 to drive reduction 10 of winch 8.
Patent GB-364387-A (GB)
Title: Improvements relating to methods and means for preserving wood
IPC: B27K3/26
Filed: 1931-02-13
Abstract: 364,387. Preserving wood. BAKER, H., 8, Cherry Street, Birmingham. Feb. 13, 1931, No. 4514. Addition to 352,650. [Class 140.] The process for preserving wood claimed in the parent Specification is modified by the use of ferro- or ferri-cyanides other than potassium or sodium ferro- or ferri-cyanides ; the wood is impregnated with such ferro- or ferri-cyanides, or with substances which react to form them, and insoluble ferro- or ferri-cyanides such as Prussian blue or Turnbull's blue are subsequently caused or allowed to be precipitated. According to one method, the wood is impregnated with a solution of a soluble ferro- or ferri-cyanide and then subjected to the action of a soluble copper salt; for example copper sulphate. Manganese sulphate or chloride may be used instead of the copper salt, and the manganese ferro-cyanide precipitated may be oxidized by exposure to air or by treatment with oxidizing agents. Impregnation with a soluble ferro-cyanide, followed by exposure to air or treatment with oxidizing agents such as chlorine, manganates, or permanganates, may be used. In another method, the wood is impregnated with a soluble cyanide such as calcium cyanide or sodium cyanide and subsequently treated with a soluble ferrous salt, the resulting ferrocyanide being subsequently oxidized. In a further method, a soluble ferro- or ferri-cyanide such as calcium ferro- or ferri-cyanide may be used in place of sodium or potassium ferro- or ferri-cyanides in the processes described in the parent Specification.
Patent GB-1089826-A (GB)
Title: A process for the manufacture of 2:1 azo dye/cobalt complexes
Inventor: JOHNSON ALAN
IPC: C09B45/10
Filed: 1965-02-02
Abstract: The invention provides a process for the manufacture of mixed 2: 1 a44444 complexes in which a 1:1 dye-cobalt complex of formula <FORM:1089826/C4-C5/1> is reacted with a monoazo dye of formula <FORM:1089826/C4-C5/2> in which formulae A1 and A11 are phenylene or naphthylene radicals, Z1 and Z11 in o-position to the azo group are -O- or -COO-, B1 and B11 are coupling components which couple in o-position to a hydroxy group or in vicinal position to an enolizable keto group, R1, R2 and R3 each represent a molecule of ammonia, or a primary, secondary or tertiary monoamine, and at least one of A1, B1 and Z1 is not identical with A11, B11 and Z11.  The process may be carried out by stirring the reactant together in water or in an organic liquid, preferably water-soluble or in a mixture of water and water-miscible organic liquid, preferably at pH 7-9 and at 20 DEG  C. to the boiling point of the liquid media.  Water-soluble organic liquids are ethanol, acetone, formamide, dioxan and b -ethoxy-ethanol, a catalyst, e.g. active carbon, may also be added. The dyes give yellow-orange-brown shades when applied to wool from a neutral to weakly acid bath.