baber/WOPTO huggingface dataset:
Patent GB-1342698-A (GB)
Title: Samarium-rare earth magnet
IPC: H01F1/055
Filed: 1972-04-06
Abstract: 1342698 Magnetic material: powder metallurgy RAYTHEON CO 6 April 1972 [6 April 1971] 16016/72 Addition to 1290887 Headings C7A and C7D A magnetic material is composed of a mixture of RCo 5  and R 2 Co 7  (wherein R is one or more of Fa, Pr and Ce). For a composition composed of 60% by weight RCo 5  and balance R 2  Co 7 , or for R34-37À5% Co66-62À5%, Sm can be added to the list of possibilities for R. The material may be made by densifying a compact of particles of less than single domain particle size of the species RCo 5  (e.g. less than 10 microns) when once again R may be Sm. The compact may be formed in a magnetic field; sintered and magnetized along the direction of the field during compaction.
Patent GB-437679-A (GB)
Title: Improvements in electro-magnetic contactors
IPC: H01H50/30
Filed: 1934-05-29
Abstract: 437,679. Electromagnetic switches. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. May 29, 1934, No. 16017. Convention date, Aug. 19, 1933. [Class 38 (v)] To prevent chattering of the armature of an A.C. electromagnetic contactor in which the core is provided with a pole shading winding in one of the air gaps between the core and the armature and to absorb the impact of the armature on attraction, the core is yieldingly mounted in such a manner that when the armature is attracted to the core the pull between the core and the base of the contactor is substantially concentrated to one point on the same side of the central line of the electromagnet as the pole shading winding is placed. As shown in Fig. 1 the armature 1 and core 5 are both of U- formation, an energizing coil 6 surrounding the right-hand limb of the core and the left-hand limb being provided with a shading ring 7 adjacent the pole face. The armature is mounted on a pivot 2 between upturned projections 4 of the base 3. The core 5 is carried by a plate 9 mounted on screws 10, 11, 12. At screw 10 the upper face of the plate 9 bears on the underside of the head of the screw 10 while a spring 13 surrounding the screw bears between the lower face of the plate 9 and the base, while at screws 11, 12 the plate 9 is interposed between upper and lower springs 141, 14 surrounding the screws. Thus when the armature is attracted the shock of the armature engaging the fixed core is cushioned by the three springs 13, 14 but while the armature remains in the attracted position the pull between the core and the base due to the retractive forces acting on the armature and contacts is concentrated substantially on the screw 10 by the plate 9 engaging the underside of the head of this screw. This screw is spaced at the same side of the central line b, b of the electromagnet as the pole bearing the shading ring 7 at a sufficient distance to ensure that the largest possible pull is obtained without the load on the core limb not provided with a shading winding exceeding that at which humming or chattering would occur.
Patent GB-181373-A (GB)
Title: Improvements in steam boilers
IPC: F22B37/40
Filed: 1921-01-04
Abstract: 181,373. Ladd, G. T., (Assignee of Pitts, W. H.). Feb. 28, 1916, [Convention date]. Water-tube boilers.-In a water-tube boiler having upper and lower drums 1, 2 connected by banks of water tubes 3, 4, 5, one of the banks forming the rear wall of the combustion chamber 7, the combustion chamber is not obstructed by water-tubes and is of uniform cross-section, and extends to the full height of the water-tubes. The areas of the successive passes for the gases between the baffle walls and the top and bottom of the boiler decrease towards the outlet flue.
Patent GB-722514-A (GB)
Title: Improvements relating to axial-flow turbine and compressor rotors
Inventor: ARMER CYRIL
IPC: F01D5/18
Filed: 1952-08-27
Abstract: 722,514. Turbines and compressors. ROLLSROYCE, Ltd. Aug. 27, 1952 [July 6, 1951], No. 16084/51. Classes 110 (1) and 110 (3). A rotor assembly for an axialflow turbine or compressor comprises blading of porous material mounted on a disc or drum and means for supplying liquid to the root ends of the blades, at least that part of the surface of each blade adjacent the root end being rendered impervious to liquid by a metallic filling or coating applied during the manufacture of the blade. Each blade 10 has a radially-inwardly-facing cup-shaped recess 14 in the blade root, an open-ended thimble member 15 being fitted therein. The whole of the working surface of the blade and root portion is made impervious by a filling or coating 10b. In another embodiment, the tip portion of a blade is uncoated and the area of the working surface which is coated increases towards the root end. The porous blade may be formed from sintered metal powder, such as stainless steel, and the coating may be sprayed or electrolytically deposited. The metal of the filling or coating may have a melting point near to the maximum permissible blade temperature. The invention is applicable where it is desired to add fluid for cooling the blades, for anti-icing purposes, for example, where water-methanol is introduced into a compressor duct, for increasing the power of a gas-turbine aircraft-propulsion engine by introducing an additional liquid such as water methanol, or for reheating the working medium passing through a turbine by addition of fuel. The rotor construction forms the subject of Specification 722,515.
Patent GB-157057-A (GB)
Title: An apparatus for hardening fatty oils
IPC: C11C3/12
Filed: 1920-06-14
Abstract: 157,057. Fujimura, Y., and Naigai Shintaku Shoji Kabushiki Kaisha. Jan. 12, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Liquids, treating with gases. - Hydrogen is formed into oil by a compressor 19 through nozzles 13 which are inclined so as to impart rotary motion, and intimate contact is secured by an agitator 15 rotating in the opposite direction. The oil is circulated by a pump 16 and rotary spraying-pipes 3.
Patent GB-727543-A (GB)
Title: Improvements in or relating to apparatus for determining the heat content of flowing hot water
Inventor: NICOLAISEN KAI AAGE
IPC: G01K17/02
Filed: 1953-06-11
Abstract: 727,543. Determining the heat content of hot water. ODIN CLORIUS AKTIESELSKAB. June 11, 1953, No. 16124/53. Class 97 (3). In apparatus for determining the heat content of flowing hot water, a sample of the hot water in a main hot water conduit is caused to pass through a calorimeter and errors due to heat transfer through and heat radiation from the sampling passages are reduced by making such passages in the form of pipes of heat-insulating material. In the form shown, a calorimeter 10 is attached to a hotwater pipe fitting 12, a sample of hot water from which can be led by pipes 18, 14 to the indicator of the calorimeter and returned by pipes 16, 20, the outlet 22 from the return pipe 20 being disposed downstream from the inlet to the feed pipe 18 so that the flow of the hot water sample is induced by the pressure drop between the inlet and outlet. The pipes 18, 20 are made of heat-insulating material and may be disposed side by side or concentrically as shown. To reduce any residual heat loss the pipes 18, 20 may be enclosed in an outer protective tube which may be of heat-insulating material or of heat-conducting material having a polished surface.
Patent GB-123930-A (GB)
Title: Improvements in or connected with the Carriages of Spinning Mules.
Inventor: RATCLIFFE JOSEPH
IPC: D01H3/04
Filed: 1918-10-05
Abstract: 123,930. Ratcliffe, J. Oct. 5, 1918. Mules.-In a mule carriage, the muntins c are provided with wooden plugs or blocks f having the grain running transversely to the length of the screws d, which secure the muntins to the front a and back b. The muntins have round tenons g engaging corresponding recesses in the parts a, b. Stiffening members h may be provided as described in Specification 123,821.
Patent GB-1217400-A (GB)
Title: Improvements in or relating to fuel systems for internal combustion engines
Inventor: KRANC MARION F
IPC: F02M25/08
Filed: 1968-04-04
Abstract: 1,217,400. Treating I.C. engine charges. CALGON CORP. April 4, 1968 (April 21, 1967; June 8, 1967], No. 16200/68. Heading F1B. Fuel vapour from an I.C. engine fuel system, e.g. the carburetter float chamber and the fuel tank, adsorbed on an adsorbent, e.g. activated carbon, is desorbed by passing air through the adsorbent in a controlled variable manner at at least two different rates, the second or a subsequent rate being at least double the initial rate. The desorbed vapour is fed to engine during operation. In a known system described air from an air cleaner 14 passes through a canister 2 of activated carbon under the control of a valve 6. Fuel from the fuel tank 12 and the carburetter 8 are adsorbed in the canister 2 when the engine 10 is inoperative. The rate of air flow through the canister 2 may gradually and continuously increase or be increased in two or more steps. Examples of air flow rates are given in the Specification.
Patent GB-685869-A (GB)
Title: Improvements in threading devices for twisting appliances in textile spinning and twisting machines
IPC: D01H15/007
Filed: 1950-06-29
Abstract: 685,869. Twist tubes. T.M.M. (RESEARCH), Ltd., and KERSHAW, S. G June 1, 1951 [June 29, 1950]. No. 16265/ 50. Class 120 (ii). A twist tube for a spinning or twisting machine has means for causing axial movement from a spinning to a braked position, such as described in Specification 643,789, and a pneumatic threading device having an inlet valve controlling the supply of air to the device and valve-operating means associated with the means for causing axial movement of the twist tube, the arrangement being such that the air valve is automatically opened when the twist tube is moved to the braked position and closed when the tube is restored to the spinning position. A rotary plug 32 has a slot 321 which may be rotated into line with an air duct 29 extending from a supply pipe 25 to a tapered passage 26 housing a guidetube 27 to receive the material to be twisted. A sealing washer 37 surrounds the lower opening of the passage 26 so that, when the twist tube 12 is raised to the braking position shown, by manipulation of a handle 22, an effective air seal is formed. The handle 22 raises the tube 12 through a lever 18 which is integral with a lever 36 adapted to rotate the plug 32. Specifications 4751/06, [Class 120], 216,511, [Class 120(ii)], and 378,735 also are referred to.
Patent GB-561525-A (GB)
Title: Improvements in filter papers
Filed: 1942-11-17
Abstract: Paper for filtering particles from air or gases contains 10 to 25 per cent of mineral fibres, e.g. asbestos, of small diameter compared with that of the other fibres present, e.g. a -cellulose, wood pulp, or esparto.  The asbestos may be ground until most of the fibres are less than 0.2 mm. long and 0.0005 mm. thick.  A colloidal soap-solution may be present in the pulp.
Patent GB-375519-A (GB)
Title: Improvements in hinges
IPC: F16C11/04
Filed: 1931-06-04
Abstract: 375,519. Hinges. FOX, J. E. and FOX, A. W., (trading as FOX & SONS, H.), 3, Bath Street, Walsall. June 4, 1931, No. 16280. [Class 65 (ii).] In a hinge having two moving leaves, particularly for a water closet seat and its cover pivoted on the same axis, projections are provided on the moving parts of the hinge to limit their movement by engaging the fixed part ; the seat and cover are prevented from coming into contact with one another by projections on one leaf engaging the other leaf. The upper leaf has a shoulder or shoulders on its hinge eyes to engage the top of the fixed member, and the lower leaf has shoulders to engage the upper leaf. In the Figure, the pivot pin 5 is supported in a pair of lugs on a fixed member 9, the cover is fixed to a leaf 3 having a forked end pivoting on the pin between the lugs of the member 9, and the seat is fixed to a member 4 having a single lug engaging the pin between the forked parts of the member 3. The member 3 has a projection 11 engaging the member 9 to limit opening of the cover, as shown. The member 4 has shoulders 12 which engage the member 9 to limit lowering of the seat and which also engage the member 3 to prevent the seat from coming into contact with the cover. According to the Provisional Specification, these shoulders and the forked parts of the member 3 may be formed to engage also in the other direction and limit the angle between seat and cover.
Patent GB-339272-A (GB)
Title: Improvements in compression refrigerating machinery
IPC: F25B1/04
Filed: 1929-05-28
Abstract: 339,272. Barr, J. May 28, 1929. Piston pumps.-The pistons of a swash-plate refrigerating pump are hollow, and their ends fitted with suction valves, the walls of the pistons and cylinders have co-operating ports for inlet of gas, and the cylinders are provided with delivery valves. The compressor may be combined with a condenser comprising a cooling pipe formed of inner and outer pipes arranged zig-zag in a water vessel containing rotary discs on which the cooling water circulated through the inner pipe is sprayed. The pistons may be double acting, reciprocating in fixed cylinders, or the cylinders may be reciprocated over fixed pistons at the ends. Fig. 2 shows a cylindrical pump casing divided longitudinally into upper and lower parts A, A', and transversely partitioned into a central chamber containing the swash-plate E and terminal inlet chambers a<2>, a<3> from which the gas passes by ports b<3>, c<3> into the pistons. These are fitted with flexible disc valves S covering ports in the heads, and inlet slots b<1> are provided in the cylinder walls in case of the valves failing to act; ball &c. valves P in the heads allow the gas to pass to delivery pipes t<1>, and thence to the annulus of a double pipe G, g'. These pipes are partly immersed in water circulated by a pump driven from the compressor shaft or from the motor M driving the shaft, and delivering the water into the inner pipe g' which discharges on to spaced discs H and rotates them; in some cases the discs may be positively driven at a slow speed from the pump shaft; a fan driven from the shaft may direct cooling air between the discs. From the annulus the refrigerant fluid passes to the evaporator. The compressor may be vertical and may be driven from the main shaft through speed-reducing gear, comprising e.g. a parallel shaft. or a worm, and worm-wheel. According to the Provisional Specification, the condenser may comprise tubes interleaved with the rotary discs cooled by water and a fan.
Patent GB-255839-A (GB)
Title: A process for the production of organic arseno compounds
IPC: C07F9/70
Filed: 1926-06-30
Abstract: 255,839. Binz, A., and Rõth, C. July 22, 1925, [Convention date]. Organo arseno compounds are prepared by the interaction of arsines with arsenoxides or arsine halides in the presence of a small quantity of a reducing agent, such as hypophosphorous acid and alkali hypophosphites. The starting materials may be aromatic, aliphatic, or heterocyclic, the products obtained being either symmetrical heterocyclic arseno compounds or symmetrical or asymmetrical aromatic or aliphatic arseno compounds. Specification 250,577 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that asymmetrical heterocyclic compounds may be obtained in the same way. The following examples are given :-(1) 3-amino-4-oxyphenylarsine, prepared by reduction of 3-nitro-4-oxyphenylarsinic acid, is condensed with 2-oxypyridine-5-dichlorarsine hydrochloride; (2) 2-oxypyridine-5-arseno-5-aminobenzene is obtained by condensing p-aminophenylarsine, prepared by the reduction of p-aminophenylarsinic acid, with 2-oxypyridine-5-dichlorarsinic hydrochloride; (3) the arsine obtained by the reduction of arsanalic acid is condensed with the reduction product of 3-nitro-4-oxyphenylarsinic acid to give 4-aminobenzene-1-arseno-3-amino - 4 - oxybenzene; (4) the reduction product of benzoic arsinic acid is brought into reaction with 2-oxypyridine-5- arsine, obtained by reduction of 2-oxypyridine-5- arsinic acid, and yields 2-oxypyridine-5-arseno-1- phenyl-2-carboxylic acid. In each case, sodium hypophosphite is the condensing agent. This subject-matter does not appear in the Specification as accepted.
Patent GB-314982-A (GB)
Title: Improvements in or relating to driers
IPC: F26B15/12
Filed: 1929-05-29
Abstract: 314,982. Coe Manufacturing Co., (Assignees of Vance, A. J.). July 7, 1928, [Convention date]. Air and gases, controlling direction of flow of. -In apparatus for drying sheet material such as wall-board, in which the sheets pass progressively through a chamber, the drying air in each of a number of zones is injected into the chamber in a direction parallel to the path of the sheets. As shown in plan view in Fig. 1, the drying chamber 10 has two circuits maintained by two pairs of fans 27 which force the air through conduits 34, heaters 33, and into the centre of the chamber through manifolds 36, the air being withdrawn at the ends of the chamber through manifolds 43. The chamber is thus under a slight vacuum. Moisture is withdrawn through damper-controlled pipes 50, and fresh air is obtained by leakage through the chamber walls. In a modification one inlet 36 is situated at the dry end of the chamber, and the other in the middle, and in a further modification both inlets are situated at the ends and the outlets in the middle. The air passes from the inlet manifolds to perforated pipes 39, Fig. 5 extending across the chamber. The outlet manifolds 43 are divided into equal passages by baffles 46, Fig. 6. The sheets are conveyed by rollers 11 spaced in pairs along the length of the chamber, and journaled in a frame 12 mounted on rollers 20 to allow for expansion. The upper roller of each pair is mounted so as to allow for vertical movement. Heating coils 41 are situated beneath the rollers. The roof of the chamber comprises a corrugated sheet 17, layers of insulating material 18 and a cover plate 19.
Patent GB-999835-A (GB)
Title: Improvements in or relating to trays or the like cartons
Inventor: CHRISTIAN RONALD
IPC: B65D5/4805
Filed: 1963-04-26
Abstract: 999,835. Cartons. R. C. WALMSEY Ltd. April 24, 1964 [April 26, 1963], No. 16607/63. Heading B8P. A carton has on its longer sides 11, 12 extension panels 15, 16 folded against the inside of sides 11, 12, having flaps 15a, 16a which are cut from the panels on two sides and folded about lines 15d, 16d so that when the tray has been erected the flaps lie across the tray as stiffeners. In another embodiment, Fig. 4 (not shown), the flaps have a tongue and a recess respectively and provide a stiffening wall of single thickness. In a further embodiment, Fig. 5 (not shown), the flaps have a slit and a tongue respectively, and the stiffener is erected prior to the erection of one or both of the end walls 13, 14 which, in all cases, have end flaps 17, 18 having tongue and slot connections with the base. In a carton having longitudinal partitions the stiffener flaps may extend from a side wall to a partition.
Patent GB-945867-A (GB)
Title: Improvements in sequential switching devices
Inventor: GUILLON HENRI GEORGES
IPC: H03K5/15
Filed: 1962-05-01
Abstract: 945,867. Electric selective signalling systems. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 1, 1962 [May 12, 1961], No. 16651/62. Heading G4H. A pulse generator, in which a number of leads are marked in succession in response to a starting pulse, comprises a feedback loop such that the appearance of a pulse on one lead causes an electronic switch to change to its next state to pulse the next lead. In the simplest embodiment. Fig. 1, an electronic counter valve A is normally at rest with a positive voltage on line M 0 . A start pulse e, passing OR gate E, switches the valve to its next state, thereby putting a positive voltage pulse on line M 1 . The pulse is differentiated at K 1  and passed via OR gate L and delay J to OR gate E. It thus acts as a trigger pulse to A, and causes the counter to step by one and the cycle to repeat. Since line M 0  is not connected in the feed-back loop the generator will stop after producing 10 pulses. The length of the pulses depends upon the time delay J. By providing various delays an irregular pulse train is produced, Fig. 5 (not shown). A circuit using two counter valves, Fig. 11 (not shown), and various delays will provide two irregular but interdependent pulse trains. In the embodiment of Fig. 13 (not shown) the duration of any one pulse in the train is extended by an additional OR gate and a long pulse generator. This embodiment is also described with particular reference to an apparatus which provides printed read-out of a counter. When it is desired to read out a decade counter W 1 , Fig. 15, a pulse e is fed to OR gate E. The pulse triggers monostable units Sa and Sb, thereby causing counter W 1  to be stepped by one and a pulse s to be fed to OR gate Lr. The pulse is differentiated at U and used to trigger counter valve A. The ten output leads from the counter valve feed individual solenoid drivers Z which each control the printing of a digit. The outputs are also differentiated and fed to gate E to provide the feedback. The switching of valve A is too fast to cause printing so each output lead is pulsed in turn and counter W 1  steadily counts upwards. When zero is reached W 1  gives a carry pulse y 'which triggers monostable unit Sr. This gives a long pulse sr, with the result that on one line M, corresponding to the number originally on counter W 1 , there appears a pulse of sufficient length to allow the printing solenoid to operate. After printing, the counter valve A continues to pulse until it reaches its rest position again. Gate Zb prevents printing when the counter valve is in its rest state.
Patent GB-515496-A (GB)
Title: Improvements in or relating to ovens for baking coiled metal rods
IPC: C21D9/54
Filed: 1938-06-03
Abstract: 515,496. Drying coiled metal rods; air circulation. MORRISON, J. R., and LEWIS, K. B. June 3, 1938, No. 16706. Convention date, June i2, 1937. [Class 34 (ii)] Coiled metal rods 10 suspended on a carrier 11 are lowered into an oven with a permanently open top and are dried and baked in five minutes by a stream of hot gas issuing from ducts at 22, 23 through the centres of the coils. A fan 21 blows hot air at 700‹F. from a combustion furnace 28 through ducts 19, 20 into the oven and withdraws it for recirculation through passages 24 in the floor 7 of the oven. Water dripping from the coils is led off by plates 25 spaced from the oven walls on two or more sides. A fan 31<1> forces air through ducts 36, 37 to nozzles 38 extending across the top of the oven on opposite sides to form an air curtain and retain the drying air in the oven. Three adjacent ovens are loaded in turn. When the end of a beam 12 of the carrier 11 rests on a plate 39 on the oven top, a switch 44 is operated by a rod 40 to increase air and fuel supply to the combustion flame and the fan speed. The end of the carrier 11 may engage a slot in a plate in the oven end wall. air being blown into the coils and out radially therethrough from the other end only. The coils move in turn from an acid pickling bath to a rinsing bath, are then subjected to a mist to form a thin rust, are next dipped into a lime bath, and then dried and baked with a lime. coating.
Patent GB-383646-A (GB)
Title: Improvements in or relating to room heating apparatus
IPC: F24D19/04
Filed: 1931-06-09
Abstract: 383,646. Heating air. TENNANT, W. J., 111, Hatton Garden, London.- (Gurney Foundry Co., Ltd. ; 4, Junction Road, Toronto, Canada.) June 9, 1931, No. 16785. [Class 64 (i).] In apparatus for heating buildings by hot air, a vertical conduit 1 is provided with inlet openings 4, 5, and outlet opening 2, and with superposed hot water pipes 8, having radiating ribs 9. A baffle 3 is connected from the upper pipe 8 to the wall of the conduit, so that the inflowing air is divided into two streams which do not unite until after passing the heaters. The heaters may be of the kind described in Specification 370,609, [Group XXII].