baber/WOPTO huggingface dataset:
Patent GB-459505-A (GB)
Title: Improvements in screw propellers and the like
IPC: B64C11/16
Filed: 1935-06-08
Abstract: 459,505. Screw propellers. STEWART, A.. B., 29A, North Frederick Street, Glasgow. June 8, 1935, No. 16698. [Class 114] Screw-propeller blades are shaped so that the middle line is concavely curved with reference to the leading edge which itself is concavely curved and the tip is provided with a blade at right angles thereto of short length. The blade C is formed with concavely curved middle line and a concavely curved leading edge 20 the trailing edge 21 curving over in toward the tip which is bent over at 22 to form a fin of approximate triangular form with sides 23, 24. The fin may be provided on one side of the blade or on both. At an intermediate portion of the leading edge there is a cut away 25 with curved edges which form in effect a groove. The blade is of aerofoil cross section and may be built up of a thin metal strip 30 backed by a wooden member 31. Instead of a wooden lamina another light non- metal material such as expanded rubber may be used.
Patent GB-554414-A (GB)
Title: Improvements in scouring device
IPC: A47L13/06
Filed: 1941-12-30
Abstract: 554,414. Knitted fabrics. GOODLOE, A. M., and CIESIELSKI, A. Dec. 30, 1941, No. 16787. [Class 74 (ii)] [Also in Group VIJ A scourer made of knitted .metallic wire, or metallic wire and textile fibre, is formed by tubular knitting, or multiple plies of the material are secured together at two edges 12 preferably by welding, and the surfaces are provided with corrugations 11 running diagonally and in opposite directions on the two faces. It may be turned inside out for cleaning it.
Patent GB-403419-A (GB)
Title: Improvements in or relating to elastic universal joint couplings
IPC: F16D3/68
Filed: 1932-06-14
Abstract: 403,419. Universal joints. KATTWINKEL, H., 28, Meissnerstrasse, Coswig, near Dresden, Germany. June 14, 1932, No. 16793. [Class 80 (ii).] A universal joint for motor vehicles comprises shaft-spiders 2 directly engaging at their ends 3 rubber driving-blocks 4 of rectangular cross-section and enclosed under considerable axial and circumferential pressure in a common annular chamber formed by a two-part sheetmetal casing 5 held together by axial bolts 6. The driving-faces of the spider-ends 3 are concave and bear on complementary convex end-faces of the rubber blocks 4. The internal surface of the casing and the external surface of the blocks 4 are spherical about the centre of the joint, the casing being centred on the spiders with the interposition of sphericallyground anti-friction plugs 11 of " Jurid " let let into the spider-ends 3, which latter are also provided at their sides with similar bearing- plugs 12 having a transverse cylindrical curvature. The rubber blocks 4 have rounded corners and internal, and/or external longitudinal grooves 8, 9 to prevent the rubber flowing into the casing-joint. They also have, in the uncompressed state, transverse grooves at their inner corners. The rubber may be hardened near its ends by vulcanising fabric to it, or by vulcanisation alone, or the entire blocks may be strengthened by embedded fibres of cotton. Specification 387,497 is referred to.
Patent GB-272057-A (GB)
Title: Improved construction of tool for expanding or cutting tubes and other cylindrical articles
IPC: B23D21/08
Filed: 1926-07-05
Abstract: 272,057. Earney, A. J. R. July 5, 1926. Tube expanders; internal pipe cutters.-A tool for expanding or cutting tubes and other cylindrical articles, such as the caps fitted into the sample holes in tea chests, barrels &c., consists of a tubular member A having an eccentric hole 9 through which passes a shaft C carrying at its lower end an eccentrically mounted disc 20, and a tubular member B mounted on the member A and having an eccentric recess 12, so that the members may be rotatably adjusted either to bring the disc concentric with the wall 13 of the recess, as shown, which is inserted in the cap, or to project the disc beyond the wall and form an indentation or seat in the cap, whereupon the shaft is rotated to complete the expanding or cutting operation. The members A and B may be plain and connected by cams or the member A may have an eccentricallybored and screwed extension 7 on to which the member B is screwed. The member B has a flange 14 to rest on the cap. The members have operating handles 10, 15 and the member B also a stop pin 16. A collar 21 may be secured to the shaft and may be separated from the member A by a spring. The tool may form part of a machine, Fig. 5, in which case the collar 21 and member B may form part of brackets 22. 23 secured to a post 24, the member A alone being rotated to position the disc. Rota. tion of the shaft is effected bv a hand wheel 25. overunning being prevented by a spring-pressed pawl 27 engaging a single toothed ratchet wheel 26 on the shaft. The work is placed on a table 32 raised by a pedal 33 through link 36 and lever 34.
Patent GB-957995-A (GB)
Title: Industrial lift trucks
IPC: B66F9/10
Filed: 1962-05-02
Abstract: 957,995. Masted lift trucks. YALE & TOWNE MANUFACTURING CO. May 2, 1962 [May 31, 1961], No. 16817/62. Heading B8H. The mast assembly 14 of a lift truck is mov-  able on rails 22 in an opening 13 between por-  tions 11, 12 of the truck by scissor linkages 26,  27 actuated by hydraulic rams 35, and is tiltable at any position along the rails by deforming the scissor linkage by means of hydraulic rams 30. The links 26, 27 are pivotally connected at 28, the links 26 are pivoted at 33 to uprights 25, secured to the inner ends of the rails 22, and the hydraulic rams 35 are pivoted to the links at 37 and to brackets 36 on the uprights 25. Links 29 are pivotally supported at 28 and provided with rollers 40 engaging in channels 41 on the primary uprights 16 and rams 30 are pivoted between the end of the links 26 and brackets 32 on the links 29. The links 27 are provided with rollers 38 engaging in channels 39 of the uprights 25 and are pivoted to links 43 which are pivotally supported at 44 on the uprights 16. An inclined bracket 20 welded to the uprights 16 is provided with rollers 19 running on the rails 22. The mast assembly 14 is tilted about the axes of rollers 19, which lie behind the mast assembly, by actuation of the rams 30.
Patent GB-371664-A (GB)
Title: Improvements in and relating to echo-eliminating arrangements in electric transmission systems
IPC: H04B3/20
Filed: 1931-06-09
Abstract: 371,664. Two - way transmission. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES, 26, Rue de la PÚpiniÞre, Paris. June 9, 1931, No. 16825. Convention date, July 3, 1930. [Class 40 (iv).] Each path of a four-wire system is effectively short-circuited when speech is passing in the other path by shunt-connected coils 3, the impedance of which is reduced owing to the saturation of the core 4 by rectified speech currents in coil 5. The control action may be ratarded by a further coil 7 short-circuited through a variable resistance 8, or by delay networks in the circuit of coil 5. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement, Fig. 2 (Cancelled), in which the short-circuiting of each path is effected by a discharge tube 9 rendered conducting when speech occurs in the other path by the potential produced across a resistance 11. A condenser 12 delays the control action. This subject-matter does not appear in the Specification as accepted.
Patent GB-1235374-A (GB)
Title: Improvements relating to the continuous casting of metals
Inventor: MORTON JAMES STORRS
IPC: B22D11/047
Filed: 1968-04-08
Abstract: 1,235,374. Continuous casting. CONSOLIDUS Ltd. 26 March, 1969 [8 April, 1968], No. 16862/68. Heading B3F. Before filling a vessel 1 with molten metal 2 intended to flow out through a horizontal or near horizontal graphite mould 5, a fusible cap 10, e.g. of the same metal, is fitted over the end 4 of the mould to delay the outflow until slag and detritus 11 have floated to the top. When casting phosphor bronze or nickel silver, delays of 2-3 seconds or 4-5 seconds respectively are produced by a cap of the same metal 0À03 inch thick.
Patent GB-1494661-A (GB)
Title: Electrical connector
IPC: H01R13/523
Filed: 1976-04-23
Abstract: 1494661 Electrical connector RELIANCE CORDS & CABLES Ltd 23 April 1976 [23 April 1975] 16876/75 Heading H2E An electrical connector, for use under "water", comprises a socket 1 and a plug 12, carrying terminals 6, 16, respectively, connected to cables C<SP>1</SP>, C<SP>11</SP> respectively, the plug and socket, when mated, defining a passage 18 in which fins 4 of the socket wall 3, extend. In use, the socket 1 is filled with non-conducting, water immiscible liquid, e.g. oil, until the terminals 6 are completely immersed and the plug 12 inserted into the socket; the displaced liquid passes in the passage 18 which is big enough to accommodate all the displaced liquid, hence the liquid-water interface 17 is in the passage. On withdrawal of the plug 12 the liquid, under the pressure of water, flows back in the socket. For liquid lighter than water the socket is positioned as shown in Fig. 1; for liquid heavier than water the socket is upturned. Each socket terminal has a slit 7 to provide for escape of liquid and fin 14 in conjunction with groove 8 provide polarizing means. In a modification, not shown, the socket carries pin terminals and the plug carries socket terminals. Means for securing the connector parts together may be provided. "Water" includes all conductive liquids.
Patent GB-595038-A (GB)
Title: Improvements in and relating to the manufacture of substituted benzene sulphonyl chlorides and of amides thereof
IPC: C07C311/37
Filed: 1945-07-04
Abstract: N4-Succinylaminobenzene sulphonyl chloride is made by reacting on succinyl aniline with chlorsulphonic acid, and may then be converted to the corresponding sulphonamides by the action of ammonia or aliphatic or aromatic primary amine.  In examples: (1) succinanilic acid is reacted with chlorsulphonic acid and the N4-succinylsulphanilyl chloride precipitated by pouring on to ice; (2) N4-succinylsulphanilamide is made by treating N4-succinylsulphanilyl chloride with aqueous ammonia; (3) N1-methyl-N4-succinylsulphanilamide is made by stirring N4-succinylsulphanilyl chloride with methylamine and aqueous sodium carbonate; and (4) N1-phenyl-N4-succinylsulphanilamide is made by heating N4-succinylsulphanilyl chloride with aniline in benzene. Instead of methylamine and aniline, also ethylamine, butylamine, the toluidines and the xylidines may be used.  Specifications 502,558, 562,763 and 595,039 are referred to.
Patent GB-730957-A (GB)
Title: Production of dialkyl phosphites
IPC: C07F9/142
Filed: 1951-07-19
Abstract: Dialkyl phosphites are obtained by allowing one mol. of a phosphorus trihalide, approximately two mols. of an aliphatic alcohol and approximately one mol. of water to stand together in a reaction vessel at between 0 DEG  and 20 DEG  C. until the reaction between them is substantially complete.  Especially suitable alcohols are aliphatic alcohols containing at least three carbon atoms, e.g. propanol, isopropanol, butanol, isobutanol and homologues thereof. The process may be carried out by adding the alcohol to the phosphorus trihalide, preferably the trichloride, allowing the mixture to stand, then adding water and allowing the mixture to stand until the reaction is complete whilst keeping the mixture cold.  The alcohol may also be first mixed with the water and the mixture introduced into the phosphorus trihalide or all three components may be run simultaneously into a previous batch of reaction mixture.  The reaction mixture is worked up by removing the hydrogen halide under reduced pressure and then distilling, preferably in vacuo.  In examples: (1) isobutanol is added to phosphorus trichloride at about 20 DEG  C. and after allowing the mixture to stand for two hours water is added and the mixture allowed to stand at 0-20 DEG  C. until reaction is complete.  After removing hydrogen chloride and distilling in vacuo diisobutyl phosphite is obtained after the first runnings have come over. The latter are added to the next batch of reactants and in this case an increased yield is obtained; (2) a mixture of butanol and water is run into phosphorus trichloride at 20 DEG  C. to yield dibutyl phosphite, by re-using the first runnings in the next batch an increased yield is obtained; (3) isopropanol mixed with water and phosphorus trichloride are introduced simultaneously, with cooling, into a solvent, e.g. chlorobenzene or ether, at 0 DEG C.  On standing at 0-20 DEG  C. di-isopropyl phosphite is obtained. Specification 684,835 is referred to.
Patent GB-979660-A (GB)
Title: Process for dyeing thermoplastic long chain polymeric resins
IPC: D06P3/52
Filed: 1962-05-04
Abstract: A process for dyeing thermoplastic long-chain polymeric resins comprises incorporating in the resin a metal having a valency of at least 2 in a form soluble in the resin, the amount of metal 6  being not more than 0.2% of the weight of the resin and dyeing the loaded resin in an aqueous dyebath containing a water-insoluble dyestuff which contains a carbonyl group in ortho position to a hydroxy group. The specified metals are Pb, Al, Cu, Ca, Ba, 2n, Sb, Cr, Fe and Ni which may be used in the form of a salt of a fatty acid preferably of 16-20 carbon atoms e.g. stearates of Al and 2n.  The materials to be dyed may be blocks, rods, plates, sheets, films or fibres of acrylic polymers, polyamides, aromatic polyesters, vinyl polymers and polyolefins especially polypropylene.  Suitable dyestuffs are from the azo anthraquinone, triphenylmethane and benzophenone series; the preferred radical containing the carbonyl and hydroxyl groups is the salicylic acid radical.  The carbonyl group may be found as such or in a COOH group and the hydroxyl group also may be found in a-COOH group. Where polyolefins are to be dyed the dyestuff should preferably be soluble in molten paraffin.  The metal may be incorporated into the resin immediately prior to spinning in the preferred amount of 0.02-0.1% of the weight of resin.  Dyeing may be effected at 212 DEG F. for about 1 hour after which the dyed material may be treated in a soap or synthetic detergent bath, rinsed and dried. Examples of dyeing polypropylene, high and low density polyethelene, nylon 66 and a polyester resin, all in the form of fibres, are given.
Patent GB-1159777-A (GB)
Title: Signal Transmission Systems.
Inventor: MORAN EDWARD PETER
IPC: G08C19/02
Filed: 1968-04-10
Abstract: 1,159,777. Transducer circuits. TEXTRON Inc. 10 April, 1968 [17 April, 1967], No. 17266/68. Heading H4J. A piezo-electric transducer, e.g. a microphone, 10, is connected to modulate the D.C. flowing through transistor 35 supplied via a coaxial cable 12 from a regulated supply 15. The voltage applied to the cable 12 is regulated by the series regulator transistor 45 whose impedance is controlled by the regulating transistor 52. The current supplied to the line passes through a resistor 43, the voltage across which, modulated in accordance with the signal from transducer 10, is fed to output terminals 20 via amplifying transistors 60 and 61. The circuit provides a high impedance input for the transducer 10 with a low impedance at the connetting cable 12. A number of voltage regulator circuits, Fig. 2 (not shown), may be connected at intervals along a very long connecting cable.
Patent GB-711567-A (GB)
Title: Improvements in or relating to thermostats for controlling gas flow
Inventor: FLAVEL SIDNEY WILLIAM BASIL
IPC: G05D23/02
Filed: 1951-07-20
Abstract: 711,567. Thermally-actuated valves. WEST LONDON APPLIANCES, Ltd. May 2, 1952 [July 20, 1951], No. 17286/51. Class 135 A thermostat with coacting valve members 4, 5 relatively axially displaceable by a thermal element, e.g. rod and tube 6, 11, and having one of the members, e.g. the seat 4, on a threaded mounting 14 permitting axial adjustment by rotation through an intermediate member 19 engaging the seat has the intermediate member angularly adjustable relatively to the seat for initial setting of the thermostat. Normal adjustment acts through rotation of the knob 26, spindle 25 and arm 28 which engages the intermediate member 19. By removing the cover 22, the screws 17 can be loosened and the annular plate 18 carrying the member 19 rotated between the seat and its mounting. In another embodiment a thermal bellows operates the valve through a spring-loaded lever. Specification 711,566 is referred to.
Patent GB-794941-A (GB)
Title: Hydrostatic weight-checking device
IPC: G01F23/20
Filed: 1956-06-05
Abstract: 794,941. Weighing apparatus. SARTORI. M. June 5, 1956 [June 11, 1955; Sept. 5, 1955], No. 17333/56. Class 143 A hydrostatic scale capsule, has a resilient corrugated side wall 12, and is in communication with a transparent manometer tube 17. This tube is contained in a slotted sleeve 19 on which is mounted a graduated slider 21 which allows the scale to be tared for the weight of a container, such as a liquid gas bottle 15, and which, is provided with "full" and "empty" graduations 21, 24. The end of the tube 17 may be open, but as shown, it is closed by a plug 31 provided with a fine breather bore. In a modification (Fig. 4, not shown) the fluid in the tube 17 supports a graduated float which co-operates with an adjustable index slidable on sleeve 19.
Patent GB-1246778-A (GB)
Title: Satin white-clay compositions
Inventor: CONLEY ROBERT F
IPC: D21H19/38
Filed: 1970-04-13
Abstract: 1,246,778. Coated paper. GEORGIA KAOLIN CO. 13 April, 1970 [24 April, 1969], No. 17379/70. Heading B2E. [Also in Divisions C4 and C5] Paper is coated with a composition containing as pigment a composition of satin white and kaolin, the kaolin being a natural kaolin classified to a particle size 80-96% by wt. <2Á,55-85% <1Á, and no more than 20% <0.2Á. (see Division C4-5). In the Examples the coatings are starch-abased and may contain a sodium hexametaphosphate-sodium carbonate dispersant.
Patent GB-1092865-A (GB)
Title: Stator assemblies for dynamo-electric machines
Inventor: PREECE KENNETH
IPC: H02K3/18
Filed: 1964-04-28
Abstract: 1,092,865. Making dynamo-electric machine coils. JOSEPH LUCAS (INDUSTRIES) Ltd. March 10, 1965 [April 28, 1964], No. 17504/64. Heading B3A. [Also in Division H2] The stator of an electrical machine has a cast iron cylindrical yoke 18 with an even number of salient polepieces 19, 20, 21, 22 wound with a field coil 17 which has axially extending parts and curved end parts which extend around the rounded ends of adjacent polepieces at axially opposite ends of the yoke. Alternate polepieces are preferably removable and after insertion of the coil are reattached to the yoke by screws 24 to secure the coil. The varnish insulated conductor strip for the coil is initially wound to form a generally square coil with rounded corners. The diagonally opposite corners of this coil are then bent in opposite directions to form a closed cylindrical field coil, Figs. 4 and 5 (not shown). Insulating strips are wrapped around the coil to hold the turns in contact. A terminal is connected to one end of the coil and a pair of commutator brushes are attached to the other end. Four brushes bear on the commutator of the machine with one diametrically opposed pair connected together and to the supply terminal and the other pair, displaced by 90 degrees to the first pair, are connected to the field coil and the terminal at the other end of the field coil is screwed to the yoke and thereby earthed. In a two-speed motor, two conductor strips may be wound to form a single field coil assembly, each coil of which may be energized singly or in combination to give the required speeds.
Patent GB-601963-A (GB)
Title: Improvements in hydraulic sizer for suspended solids
IPC: B03B5/62
Filed: 1944-09-13
Abstract: 601,963. Automatic control systems. DORR CO. Sept. 13, 1944, Nos. 17523 and 17524. Convention dates, Sept. 10, 1943 and June 29, 1944. [Class 38 (iv)] [Also in Group II] In a hindered settler the density of the pulp is maintained by automatic control of a solids discharge valve through a device operated by a column of clean liquid, the height of which varies with the density of the pulp. As shown, applied to an upward current classifier of the type described in Specification 268,663, [Class 82 (ii)], a valve 34 is attached by a rod 35 and a flexible coupling 35a to a collar 79 mounted on a motor shaft 73a. The motor is controlled by a potentiometric apparatus divided into two units, the contact arm 68 of the first coil 66 being operated by the action of a bellows 64 through a lever 67 against an adjustable spring 67g and the second arm 75 by a drive from the motor spindle. Any change in density in the pulp causes a variation in the height of a column of clean liquid which, in turn, operates the bellows resulting in an unbalance of the potentiometer by movement of the arm 68. The unbalance causes one of a pair of solenoids to operate and start the motor which moves the second arm 75 towards rebalancing the circuit and at the same time moves the valve 34 in a direction to maintain the density of the pulp. The ratio of the volume of liquid to the volume of solids plus liquid may be maintained between 0.6 and 0.9 by means of a manually controlled device.
Patent GB-871012-A (GB)
Title: A vehicle park
Inventor: STRUBEN FRANK EDWARD BEATTIE
IPC: E04H6/30
Filed: 1956-06-06
Abstract: 871,012. Mechanical garages. DE CHAIR, H. G. D. Sept. 5, 1957 [June 6, 1956; Aug. 9 1956], Nos. 17542/56 and 24462/56. Class 78 (4). A car park comprises one or more ferries 24, 25 (Fig. 1) movable on a track 30 whilst carrying a vehicle, entry and exit roads running transversely to the track, and means for pushing the vehicle on and off the ferry into parking bays on at least one side of the track. As shown, the ferries 24, 25 are moved electrically along a track 30 underneath a road and carry parking means 42 (Fig. 4) for pushing vehicles from the ferries into parking bays 32 or recovering them therefrom. Access to an egress from the ferries is by ramps 20, 20a, 21, 21a (Fig. 1). The parking means 42 is actuated by a pusher 41 (Fig. 4) and is connected to a central point on the ferry floor by cables which pass round pulleys at either end of the pusher so that the means 42 moves through twice the distance covered by the pusher. The parking means comprises four rollers 66, Fig. 9, two of which are shown extended to engage the wheels of a vehicle and two retracted to pass under a vehicle. Extension is by cables 74 which are joined in pairs on either side of the parking means and form the actuating cables for the parking means itself, and retraction is by springs (not shown). A spring-biased peg engages holes in the slide to prevent movement of the parking means during extension and retraction of the rollers and is released by a cable. The ferry has side guides 36 for the vehicle wheels, which may be adjustable from the control-point 38. Pushers acting on the side of the wheels, in combination with rollers or a slidable mat on the ferry floor, may locate the vehicle on the ferry. Fig. 11 shows the method of mounting the ferry wheels. The wheel 28 is supported in a fork 88 adjustable for height by a plug 91 screwed into a collar 90 on a cylindrical tube 85 which is attached to the floor 27 of the ferry (outside the guides 36) and slotted to guide the wheel and prevent its rotation about a vertical axis. A spring may be interposed between the fork 88 and the plug 91. The parking bays 32 may have floors sloping towards the ferry track 30 and humps to prevent cars running back on to the track. The parking means 42 may have only one pair of rollers 66. Traffic lights and possibly a positive stopping means controlled by a supervisor may be provided to prevent cars being driven on to the track until the ferry is in position. For narrow streets, where the entrance and exit ramps cannot be made truly transverse to the track 30, a turntable may be provided to align the ferry with the appropriate ramp and to straighten it before moving. The park need not be underground. Specification 871,022 is referred to.