baber/WOPTO huggingface dataset:
Patent GB-566686-A (GB)
Title: Improvements relating to propeller fans
IPC: F04D19/02
Filed: 1943-12-29
Abstract: 566,686. Screw fans. JENNINGS, H. W. K. (Sturtevant Co., B. F.). Dec. 29, 1943, No. 21813. [Class 110 (i)] In a multi-stage screw fan, the wheels of the stages are made dissimilar and are so constructed that the stalling depression C in the pressure-volume curve of one wheel is compensated by a rise in the curve of another wheel at the same pressure and volume. The two wheels A, B may have different radial lengths either by using hubs of different radii, or by using hubs of the same radii, and shortening B by narrowing the casing adjacent to B. In another form, the blades are of different radii and have different numbers of blades.
Patent GB-736740-A (GB)
Title: Improvements in and relating to the dehydrochlorination of chlorinated hydrocarbons
IPC: C07C17/25
Filed: 1953-08-07
Abstract: In a process for the vapour phase dehydrochlorination of chlorinated hydrocarbons known to undergo dehydrochlorination on heating in the vapour phase the heat necessary for carrying out such endothermic reaction is supplied to the reactor in which the dehydrochlorination of the chlorinated hydrocarbon is effected by the combustion of dry hydrogen with dry chlorine.  The hot hydrogen chloride may be injected into the reactor to heat the chlorinated hydrocarbon directly or the chlorine-hydrogen flame may be used to heat ceramic or other particulate refractory material which is circulated to the reactor and returned for reheating.  Hot hydrogen chloride may be passed through a bed of particulate inert refractory material which is cyclically transferred to reactor to provide a heat source for the dehydrochlorination of a vaporized chlorinated hydrocarbon and withdrawn for reheating.  Vinyl chloride is produced from ethylene chloride in a packed reactor heated by the passage of a hot chlorine-hydrogen combustion product.  Trichloroethylene is produced from tetrachloroethane, the heat being supplied by continuous cyclic supply and withdrawal of particulate inert refractory material which is heated in a chlorine-hydrogen combustion zone.  In examples trichloroethylene is obtained by cracking tetrachloroethane in a reaction containing a boiling bed of sand, the sand being continually withdrawn, heated in a hydrogen chlorine reactor and recycled (1); and vinyl chloride is obtained by cracking ethylene dichloride in a reactor filled with sand or inert ceramic material, heat being supplied by injecting hot gas from a chlorine-hydrogen burner. Specification 697,482 is referred to.
Patent GB-1466727-A (GB)
Title: Connector for a printed circuit
IPC: H01R12/89
Filed: 1974-05-16
Abstract: 1466727 Two-part couplings SOCAPEX 16 May 1974 [18 May 1973] 21895/75 Heading H2E A connector for circuit board edges comprises a body 1 with a slide portion 6, a plurality of terminals 2 mounted in the body, each with a spring portion 5 having one end 10 engaged in an aperture 7 of the slide portion 6. A circuit board is inserted into the slide portion 6 causing the latter to move in the direction F; this movement flexes the spring portion 5 until the end 10 and the other end 12 engaging the terminal 2 are aligned when the end 10 is able to move off the face 11 of the aperture 7 and engage a contact pad on the board if at the point of engagement, the slide is substantially at the end of its movement and so no sliding between the end 10 and pad occurs. The slide portion has two lips (8, Fig. 1, not shown) which are spread apart by the board and so can pass clear of a boss (9) in the body when the slide portion 6 is moved, movement being prevented if no board or a too-thin board is inserted. The slide portion may have an aperture (13, Figs. 6 and 7) containing a locking ball (14) which engages in a recess (16) on the board to ensure that the board and slide portion move together during insertion and withdrawal. In the embodiment of Fig. 5 (not shown) the aperture face 11 has a step engaging the end 10, the end in use overriding the step to spring against the board pad with an impact.
Patent GB-988533-A (GB)
Title: Apparatus suitable for applying closures and metal coil cover caps to bottles and like containers
Inventor: WORSLEY WILLIAM
IPC: B67B3/14
Filed: 1961-06-16
Abstract: 988,533. Applying bottle &c. closures. WICANDERS (GREAT BRITAIN) Ltd. June 12, 1962 [June 16, 1961], No. 21934/61. Heading B8T. A head 1 which applies both a closure 20 and then a metal foil cover cap 42 to a bottle mouth 41 includes a chamber 3 in which is mounted a pressure member 5 on a spindle 6 and comprising a ram 50 and a sleeve 51 urged to the position of Fig. 1 by a spring 11. A passage 24 is periodically connected to a vacuum pump so that when a closure 20 is supplied to the chamber via a passage 4 it is drawn by suction on to the pressure member. As shown, the closure includes a skirt 61 and a central hollow plug portion 60. The head and bottle platform 35 move in a circular path and when the closure is received by the pressure member the platform is raised and the bottle mouth forced against the closure whereby the pressure member is raised against the spring 11 until the spindle 6 strikes a stop 54. Upward movement of the ram is thus stopped, and the closure is then forced home as illustrated in Fig. 3, with the sleeve 51 within a collar 15 which is recessed at 16 to receive the closure skirt. The closured bottle is then withdrawn, and a metal cover cap introduced to the chamber through the passage 4 and similarly drawn by suction on to the pressure member. The closured bottle is then raised to the position of Fig. 2 so that the cap covers the closure, and in this position the head moves under a split roller 37 which forces a plunger 30 downwardly against a spring 31 so that an annular inclined surface 32 of the plunger forces a number of slidable segments 33 radially inwardly. The segments have resilient faces 34 which compress the flange of the cover cap around the closure and bottle wall, after which the bottle is lowered and removed. Specification 987,398 is referred to.
Patent GB-823405-A (GB)
Title: Process for improving the wet fastness properties of direct dyeings
IPC: D06P3/64
Filed: 1956-07-16
Abstract: The wet fastness of direct dyeings produced on cellulosic fibres, e.g. cotton, linen or regenerated cellulose fibres, by a discontinuous dyeing method with a soluble direct azo dyestuff containing copper, nickel or cobalt in complex union in the presence of an alkylene diamine containing an oxyalkyl group is improved by subsequent treatment with a nitrogenous after-treating agent. Suitable dyestuffs are those containing at least two metallized ortho : ortho1-dioxy-azo-groupings or ortho-oxy-ortho1-carboxy-azo groupings or at least one of each of these groupings.  Suitable alkylene diamines are those of the formula <FORM:0823405/IV(c)/1> in which R1=hydrogen, an alkyl group of at most 3 carbon atoms or an oxymethyl group, R2=hydrogen or a methyl group and n=a whole number not greater than 4.  The dyebath may also contain other amines such as monoethanolamine, anions of a phosphoric acid such as ortho-, pyro- or poly-phosphoric acids and the usual additives such as sodium sulphate.  Preferred nitrogenous after-treating agents are those obtained by condensing a non-cyclic compound containing the grouping <FORM:0823405/IV(c)/2> preferably dicyandiamide, with a salt of an aliphatic amine containing at least two primary or secondary amino groups and with formaldehyde.  Water-soluble metal compounds, e.g. copper compounds, capable of forming complexes may be applied in combination with the nitrogenous after-treating agent.  Numerous examples are given.
Patent GB-976300-A (GB)
Title: A brushless d.c. dynamo-electric machine
IPC: H02K57/00
Filed: 1962-06-07
Abstract: 976,300. Dynamo-electric machines. T. HOWARD. June 6, 1963 [June 7, 1962], No. 22072/62. Heading H2A. A brushless machine consists of two spaced stators, similarly energized and linked by a rotor comprising a bundle of radial, mutually insulated sectors 5, one of the stators B being slotted and carrying a distributed winding, and the other stator E having the same number of salient poles. The machine may be of drum type as shown or of disc type (Figs. 4-6, not shown), and it may be a motor or generator, D.C. or A.C.
Patent GB-235060-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B29/06
Filed: 1924-09-19
Abstract: 235,060. Universal Art Stitch Machine, Ltd., and Bingham, J. Sept. 19, 1924. Sewing-machines; lockstitching by hooks; needles, vibrating laterally; frames. -In machines of the type in which the frame carrying the stitch-forming mechanism is oscillated from side to side relatively to a stationary workplate, the horizontal arm 3, the vertical support 4, and the base plate 5 are made as an integral structure with the pivot bearing 6. The main shaft 14 is journalled in a bearing 18 seated in a partition 12 formed in the arm 3. The under-thread mechanism ccmprising a hook 49 is actuated from the shaft 14 by a connecting rod 37 which oscillates a sleeve 36 rotatably mounted on a shaft 41 and having a slotted arm 44 in which slides and turns a pin 45 projecting from an arm 46 on the under-shaft 47. The shaft 47 is mounted to move against the pressure of a spring 53 to allow it to clear the work. The frame is supported at its sewing end by rollers 64 or by feet 53, 54 sliding on a plate 55. The machine is driven from a shaft 66 geared to a shaft 72 which is connected by a drag-link connection to a shaft 75 chain-geared to the shaft 14. The feed mechanism is actuated by a cam 91. The swinging- movement of the machine is effected by a crossover cam 82 or equivalent device which moves a segmental guide 83 linked to the machine at 87. A block 85 is adjustable in the guide by means of a linkage 88, 89 manually actuated to vary the throw. Presser-bars; presser-feet.-Presser-feet are carried by slidable members 96<a>, 96<b>, connected by a member 96<c> pivoted to an adjustable end 97 on an arm 98 pivoted in supports 100 on the machine base and movable by a hand-lever 56. Spools and the like, winding.-Spools to be wound are placed on a split spindle 108 rotated by a friction wheel 105 which may be brought into contact with a wheel 104 on the shaft 66. Specification 171,861 is referrd to.
Patent GB-664124-A (GB)
Title: Improvements in and relating to a process for promoting the graphitisation of cast iron
Filed: 1949-08-25
Abstract: The graphitization of cast iron is promoted by the addition to the metal, at any time before solidification, of zinc or a zinc alloy. The zinc may be added in the blast furnace, hearth, runner, ladle, cupola, melting furnace, mixer or mould.
Patent GB-620771-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/32
Filed: 1946-07-25
Abstract: 620,771. Suction cleaners. SCOTT & FETZER CO. July 25, 1946, No. 22170. Convention date, Oct. 2, 1945. [Class 8(i)] In an operator propelled fan suction cleaner wherein a floor cleaning nozzle 11 including a rotary brush 18 driven by a belt 20 from the horizontal fan shaft 6 is detachable from the fan casing 1, an arm 29 on an adjustable member 22 on the nozzle 11 serves to engage the inner side of the belt and lift it from the shaft 6 during attachment or detachment of the nozzle. The member 22 comprises a rotatable plate covering an aperture in front of the nozzle. To lift the belt 20, the plate 22 is rotated counter-clockwise by a handle 24 to a suitable stop pin; the nozzle being releasably secured to the casing by clamps 15a. A tubular attachment for off the floor cleaning may be substituted for the nozzle 11.
Patent GB-913497-A (GB)
Title: Improvements in or relating to hatch arrangements for the cargo tanks in tankers
IPC: B63B19/14
Filed: 1960-06-24
Abstract: 913,497. Hatch covers. MALMO FLYGINDUSTRI A.B., and KOCKUMS MEKANISKA VERKSTADS A.B. June 24, 1960 [June 24, 1959], No. 22208/60. Class 113. A hatch cover 2, preferably of glass fibre reinforced plastic is mounted on the coaming 1 at each side by a link 11 co-operating with pivots 12 and 13 so that the cover may be moved to the stowed position indicated by chaindotted lines, Fig. 1. The axis of the pivots 12 lies close to the centre of gravity of the cover. The cover is clamped in the closed position by eyebolts 7 and in the stowed position by an eyebolt 17. An extruded metal ring 3 reinforces the cover 2 around its periphery and also serves as a mounting for the packing ring 5.
Patent GB-1135599-A (GB)
Title: Improvements in or relating to frequency-and-time-proportional signal control devices
IPC: G05D11/13
Filed: 1966-05-19
Abstract: 1,135,599. Measuring frequencies. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 May, 1966 [22 May, 1965], No. 22256/66. Heading G4H. An unknown frequency f m  is converted into a time interval t m  and compared with a prescribed time interval t s . In one embodiment (Fig. 1) a gate G v  is enabled for a time period t M  to pass the frequency signals f m  to a counter Z M W 1 . At the end of the time interval a flip-flop is set to enable the counter to count clock pulses of frequency fp in the reserve direction until an output from gate Go indicates that the counter is in its zero position. This output resets the flip-flop so that the output pulse from it to a comparator V when it is in its set state has a length t m  = f m  - t M /f p  At the end of the time interval t M  a flip-flop FF s  in the device SW 1  producing the fixed time interval is set to enable a counter Z s  to count clock-pulses of frequency fp. The clock pulses are fed to a preselection device D which is adjusted to give an output pulse when a count of for example, Z s  is attained and so reset the flip-flop FF s . Consequently the flip-flop provides an output from its set state for a time interval t s =Z s /f p . The   time interval t m  and t s  are compared and an output on one of two leads A V  and A R  obtained depending on which is the greater. In a further embodiment (Fig. 2, not shown) a plurality of input frequencies may be converted into corresponding time intervals and compared with an equal number of pre-selected time intervals under the control of a plurality of devices D, all the devices D being controlled by one counter Z s . In a further embodiment (Fig. 3, not shown) the frequency f m  is continuously applied to the positive input of the counter.
Patent GB-448540-A (GB)
Title: Improvements in or relating to the cylinder heads of internal combustion engines
IPC: F02F1/26
Filed: 1935-08-07
Abstract: 448,540. Casting composite articles. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Campbell, Wyant, & Cannon Foundry Co. ; Norton Township, Michigan, U.S.A.) Aug. 7, 1935, No. 22290. [Class 83 (i)] [See also Group XXVII] (i)] [See A heat-transfer member 4 is united to an internal-combustion engine cylinder head by a bonding-washer 5 which is embedded in both the member 4 and the wall of the cylinder head during the casting process. The member 4, which is located above the cylinder bore and has a serrated rib 8 extending into the water jacket, is preferably made of copper, the washer being made of steel.
Patent GB-970613-A (GB)
Title: Improvements in safety circuits for electrically-driven machines
Inventor: LEIN WERNER
IPC: B41F33/00
Filed: 1962-06-08
Abstract: 970,613. Control of motors. DRUCKMASCHINENWERK PLANETA VEB. June 8, 1962, No. 22325/62. Heading H2J. Relates to a safety circuit for the forward reverse and inching control of an electric motor which drives a rotary printing press. Actuation of an inching button b3 energizes auxiliary relay d1 which closes contacts d11 d12, to energize auxiliary relay d6 and time delay relay d7. A main relay c1 for forward operation is energized through contacts d61 until relay d7 releases contacts d71 in series with the coil of relay d6. The motor is therefore stopped despite continued actuation of the button b3 which must be released to re-set the relay d7. However, if relay c1 fails to release due to a mechanical fault, then contacts c12 remain closed, and main relay c2 for reverse operation is energized through contacts d21 of time delay relay d2. This causes rupture of the main fuses for the motor. Continuous operation of the motor in a forward direction is controlled by button b4 in series with auxiliary relay .d5 having contact d51 in circuit with push-button b1 and relay d2, and in circuit with interlock contact c21 and main relay c1.
Patent GB-224984-A (GB)
Title: Improvements in or relating to gas cooking ovens
IPC: F24C3/00
Filed: 1923-09-05
Abstract: 224,984. Grant, C. de V., and Williams, Sir W. W. Sept. 5, 1923. Steam, supplying to ovens. - Superheated steam is supplied to a gas cooking-oven from one or more pipes inside the oven connected to an external steam supply, the pipes inside the oven being heated by the gas flames in order to superheat. the steam before it issues into the oven. In the apparatus shown, two pipes 10 are connected to a header 9 carried by a form of plug cock 1 to which steam is supplied from a pipe 5. In use, the pipes 10 are located over the gas burner: by turning them to one side, they are moved away from the flames and the steam is at the same time shut off at the cock 1. Specification 208,427 is referred to.
Patent GB-748566-A (GB)
Title: Improvements relating to the preparation of phenols
Filed: 1953-08-13
Abstract: Phenols are prepared from hydroperoxides of aralkyl hydrocarbons in which the alkyl group contains two aryl groups attached to the same carbon atom by acidifying the hydroperoxide in the presence of a current of steam, e.g. by passing the steam and the hydroperoxide into a reaction vessel containing acid, and condensing the steam together with the reaction products, from which the phenols are recovered.  The starting material may suitably be a crude hydroperoxide reaction product obtained by oxidation of corresponding aralkyl hydrocarbons.  The reaction may be carried out by mixing the hydroperoxide with dilute acid such as 10-25 per cent sulphuric acid and passing in steam to maintain a temperature of about 100 DEG  C. In an example diphenyl methane hydroperoxide, obtained by oxidation of diphenyl methane with oxygen, is treated with steam to give as products phenol and benzaldehyde.  Specification 748,565 is referred to.
Patent GB-1193809-A (GB)
Title: Improvements in or relating to Differential-Pressure Measuring System for Liquids
Inventor: WENZEL HERIBERT
IPC: G01L13/00
Filed: 1969-05-01
Abstract: 1,193,809. Measuring fluid-flow; measuring differential pressure. LINDE A.G. May 1, 1969 [May 2, 1968], No. 22361/69. Headings G1L and G1R] In a differential pressure measuring system for liquids in which the pressure upstream and downstream of an orifice plate 13 is measured the liquid in the pipe 11 passes through apertures into chambers 12a 12b into vertical pipe sections 18, 19 having a relatively low thermal conductivity whilst the remainder of the pipe sections 14, 15 have a relatively high thermal conductivity so that the liquid in sections 18, 19 is maintained at the temperature of the liquid to be measured and the sections 14, 15 can be given a temperature above the boiling point of the liquid to be measured. Pipes 22, 23 prevent gas or vapour pockets in chamber 12a 12b if block 20 serves as a heat reservoir between pipes 14, 15.
Patent GB-1384027-A (GB)
Title: Valve construction
IPC: F16K5/22
Filed: 1973-05-10
Abstract: 1384027 Valves M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 10 May 1973 [15 May 1972] 22368/73 Heading F2V  A valve having a body 10 and valve member 13 includes a sealing assembly housed around at least one flow passage through the body, comprising a rigid seat ring 56 having one portion- 56a located in a recess in the body and the other portion located adjacent the surface of the valve member and carrying a resilient seal 71, a ribbon-like resilient member 81 the space 76 between the seal 71 and member 81 being subjected to viscous sealant applied through bores 77 and 79. The seat ring 56 is biased towards the valve member by a set of circumferentially placed springs 65 accommodated in an annular resilient member 64 of U-shaped section. The valve member may be rotary (as shown) or reciprocatory (Fig. 3, not shown).
Patent GB-387673-A (GB)
Title: Improvements in permanent magnet loud speakers
IPC: H04R9/02
Filed: 1931-08-07
Abstract: 387,673. Loud-speakers. MAGNAVOX CO., Oakland, California, U.S.A. Aug. 7, 1931.No. 22407. Convention date, May 18. [Class 40 (iv).] A permanently magnetized magnetic system for an electrodynamic loud-speaker comprises a front member and aback member of magnetic material with an air gap in the magnetic circuit between the members, a cylindrical coil disposed in the air gap and a diaphragm to which the coil is secured at its centre mounted between the members and attached at its periphery to the magnetic structure. Fig. 2 shows a construction of moving-coil loudspeaker comprising a front frame 10 of magnetic material apertured at 26, 27 and having outwardly displaced portions 11 on opposite sides thereof adapted to receive the ends of a permanent bar magnet. 12. The ends of the magnet are arranged within an annular flanged ring 13 which co-operates with a flange 14 on the member 10 and serves to secure the rim 15 of the conical diaphragm 16 on the member 10. The magnet has a central circular opening 17 and is magnetized so that its opposite ends are of the same polarity whilst the portion around the opening 17 is of opposite polarity. A central pole 19 is mounted on the front member 10 and projects rearwardly through the opening 17, the annular polepiece being either formed directly on the magnet 12 or, as shown, by an annular member 18 which is centred on the magnet by projections 22 engaging in openings 23 and is held in position by a non-magnetic spacing collar 24 which engages the end of the central pole 19. A coil 20 attached to the diaphragm 16 is disposed within the annular air gap and is centred therein by a flexible support 21. The parts are held together by a bolt 25 extending through the pole 19. Fig. 3 shows a modification in which the single permanent magnet is replaced by a number of permanent magnets 28, one end of each of these magnets being disposed in the flanged clamping ring 30 whilst their other ends co-operate with an annular polepiece 31. In a further modification, Fig. 4, a permanent magnet 33 of cruciform shape is arranged in front of the diaphragm, the arms 34 being bowed outwardly and turned in so as to cooperate with a diaphragm supporting frame 35 of magnetic material which carries an annular polepiece 36 into which the central pole 37 projects. The diaphragm 16 may have its edge surrounded by a metallic rim 40 which may be clamped between the poles 34 and frame 35 or may be cut away adjacent the poles 34 and secured on the frame 35 by rivets, screws or spot-welding. A further modification of the construction shown in Fig. 2 is described and illustrated, Figs. 7 and 8 (not shown), in which the magnet 12 is replaced by a cast member comprising two concentric ring portions disposed in different parallel planes and coniiected together by radially extending arms. The cast member may be of magnetized cobalt or other steel or of soft cast iron and, when magnetized, the concentric ring portions will be of opposite polarity.