baber/WOPTO huggingface dataset:
Patent GB-481022-A (GB)
Title: Improvements relating to electro-magnetically operated switches
IPC: H01H29/04
Filed: 1936-08-31
Abstract: 481,022. Electromagnetic and mercury switches. CIANCHI, A. Aug. 31, 1936, No. 23857. [Class 38 (v)] An electromagnetic switch comprises a switch tube 1 containing an armature and contacts which is mounted within a solenoid 4 surrounded by a magnetic shell 5 having an air gap at 6. Secured to the upper and lower sides of the magnetic shell 5 by means of screws 7 are a pair of insulating end caps 6, 6<1> which project over the outer side of the solenoid and surround the ends of the switch tube 1 projecting above and below the solenoid. The end caps 6, 61 carry contacts 12, 121 at their upper and lower ends, which contacts are connected inwardly by springs 10. 10<1> to the contacts 2 which are brought out 'from the switch tube the springs 10, 10<1> serving to support the tube within the solenoid. By means of the contacts 12, 12<1> the switch may be connected into or out of circuit by being plugged between spring contacts 19, 19<1> mounted on a panel 18 and shielded by insulating members 21, 21<1>. The switch casing may contain other components such as a push-button switch 14, an indicating lamp 15 a bimetallic thermal switch 16 and an ammeter 17. The circuit to the control push-button switch 14 is completed through a ring 13 engaging a springy contact finger 20 when the switch is in its plugged-in position. In an alternative arrangement, Fig. 2 (not shown) in which the switch tube only projects at one end of the solenoid, an insulating end cap is provided only at that end the solenoid being closed at its other end by an insulating plug. In this modification, the switch is resiliently supported by means of rubber pads interposed between the ends of switch tube and the end cap and insulating plug respectively.
Patent GB-648559-A (GB)
Title: Improvements in or relating to grey colouring compositions for use in ceramics and in enamelling
IPC: C03C8/02
Filed: 1948-09-10
Abstract: 648,559. Colouring pottery. SOC. DES USINES CHIMIQUES RHONE-POULENC. Sept. 10, 1948, No. 23895. Convention date, Oct. 28, 1947. [Class 87(i)] [Also in Group XXIII] A grey colouring composition for use as an underglaze.colour for earthenware consists of 1-65 per cent by weight Mo0 3 , 35-99 per cent by weight A1 2 0 3 , and 0-40 per cent by weight Zn0 and/or Sn0. The mixture is calcined above 800‹C, and preferably the Zn0 and Sn0 are added before calcination. Substances which yield the oxides on calcining may be used, e.g. (NH4) 2  Mo0 4 . The depth of the tint depends primarily on the Mo0 3  content, the deepest greys resulting from 5-20 per cent Mo0 3 , and 95-80 per cent A1 2 0 3 . The tint diminishes below 5 per cent Mo0 3  and above 20 per cent Mo0 3 , and above 65 per cent Mo0 3  is scarcely perceptible. Zn0 and Sn0 increase the covering power but lighten the tint. Examples are, (1) Hydrated A1 2 0 ;  146 parts and (NH4) 2 Mo0 4  6.8 parts mixed, calcined preferably between 1150‹C and 1300‹C, cooled, and ground, (2) Hydrated A1 2 0 3  92.4 parts, Zn0 30 parts, and (NH4), Mo0 4  13.6 parts prepared as in (1), and (3) Hydrated A1 2 0 3  92.4 parts, Sn0 7.5 parts, and (NH4) 2  Mo0 4  5.1 part prepared as in (1).
Patent GB-583759-A (GB)
Title: An improved tractor-drawn turnip cutter cart
IPC: B26D3/18
Filed: 1944-11-30
Abstract: 583,759. Cutting and slicing vegetables. RAE, J. S. Nov. 30, 1944, No. 23900. [Class 5 (i)] In a turnip-cutter cart the cutter shaft 13 is driven from the power take-off shaft of the tractor-vehicle through sprocket and chain gearing 24, toothed reduction gearing 27, and shafting comprising universal joints 33, 36 and an overrunning clutch 31. The cart consists of a frame 9 on which is hinged a hopper having wooden sides and metal grid ends. The lower parts of the walls are closed, and the sliced material is discharged into a receptacle 18.
Patent GB-1503270-A (GB)
Title: Separation membranes
IPC: B01D69/02
Filed: 1976-06-09
Abstract: 1503270 Separation membrane KURARAY CO Ltd 9 June 1976 [10 June 1975 3 Feb 1976] 23944/76 Heading B5B The membrane is formed from a copolymer of ethylene and vinyl alcohol, the constituent particles of which have an average diameter of 100-10000 Angstrom units and are bonded together to form a membrane free from voids in excess of 2 microns in diameter. The micropore structure is uniform throughout its longitudinal and its transverse sectional areas. The membrane is formed by coagulating a solution of the copolymer in DMSO, DMA or a mixture thereof or a mixture containing a minor amount of another solvent under mild conditions corresponding to not less than 3 sees. of coagulation time. Water present in or on the membrane may be replaced by an organic watermiscible solvent, e.g. an aliphatic alcohol, ketone or polyhydric alcohol or a reaction product of a polyhydric alcohol and ethylene oxide, followed by drying below the glass transition point of the copolymer.
Patent GB-790253-A (GB)
Title: Improvements relating to the construction of composite plates or panels
IPC: B32B27/00
Filed: 1955-08-19
Abstract: 790,253. Laminates. DAIMLER-BENZ AKT.-GES. Aug. 19, 1955 [Aug. 19, 1954J, No. 23958/55. Class 140. A composite wall-plate or panel comprises layers of synthetic plastic material (e.g. epoxide resins), comprising at least one layer 18, Fig. 4, having an unbroken surface, and one layer 11, which is provided with lines of staggered cuplike depressions 16 of round or six-sided outline formed by sloping walls W with a moderate angle of inclination and having flat base surfaces 17 of substituted area and being connected to the unbroken layer by adhesion over the whole base surfaces of the depressions. The adhesion may be achieved by placing the partly hardened layers together while still " wet " and subsequently hardening or an intermediate adhesive material layer of the same nature as the layers may be used. The layers may be of the same or different materials or thickness and may be similarly or differently reinforced. Various modified panels are shown in Figs. 5, 7 and 8 wherein Fig. 5 shows a further plastic layer joined to the rims of the depressions; in Fig. 7, two composite panels as in Fig. 4 are joined together by their rims and in Fig. 8 the same is done but an intermediate flat sheet 19 is interposed between the two panels. Where two panels are joined, the depressions may be of the same or different profile provided there is a sufficient mating of the rims. The panels may be used in refrigerated vehicles, aircraft and ships, as wall or roof structures or as containers.
Patent GB-268658-A (GB)
Title: Improvements in and connected with rotary mixing machines
IPC: B28C5/18
Filed: 1926-09-28
Abstract: 268,658. Burn, J. F., and Lancaster, J. S. Sept. 28, 1926. Rotary mixers.-A concrete &c. mixer of the rotary, tilting drum type has the bottom shaped to provide one or more helical surfaces with sudden drops or steps between the base of one surface and the top of the next. As shown, the drum A, provided with a frusto-conical mouth B, has two such steps J between which the bottom is in the form of helices K. The steps J may be plane, as shown, or convex, and the helices may be transversely curved. The bottom of the drum may be formed by pressing or stamping. The drum is mounted on a shaft F having a rounded head H. Specification 236,278 is referred to.
Patent GB-295952-A (GB)
Title: Improvements in and relating to parachutes
IPC: B64D17/00
Filed: 1928-08-20
Abstract: 295,952. Bertrand, J. Aug. 20, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts] Parachutes.-A para chute comprises two o: more superposed sur faces 1, gradually de creasing in size from the top and connected by cables 10. The sur faces comprise silk o the like stretched ove ribs 6 with central aper tures 7. The surfaces are telescoped and folded in the form of a double or a quadruple V in a case from which they are expelled by a spring or compressed air device.
Patent GB-1439252-A (GB)
Title: Hinging devices for use in building construction
IPC: E04B1/04
Filed: 1973-04-24
Abstract: 1439252 Hinges O V MIRAM 24 April 1973 00239/76 Divided out of 1439251 Heading E2F A removable hinge C for use in a building construction as disclosed in Specification 1439251 comprises first and second plate members 41, 42 which are each provided with a rigid leaf 43, 44, respectively, normal thereto and are pivoted to-gether by a pin 45 passing through aligned holes in the leaves at least one of which is additionally provided with a projecting portion 47 having an aperture 48 therein for suspension purposes. The hinge plates are bolted to the reinforcingments 52 in cast concrete panels A, B by bolts 46.
Patent GB-1260135-A (GB)
Title: Improved control for trawl winches
Inventor: SMITHSON JOHN GOAD
IPC: A01K73/06
Filed: 1968-05-20
Abstract: 1,260,135 Automatic tension control. NATIONAL RESEARCH DEVELOPMENT CORP. May 20, 1969 [May 20, 1968], No.24028/68. Heading G3R. Tension in the warp being paid off from an electrically driven trawl winch is maintained constant by automatically controlling the braking of the winch in dependence on electrical signals corresponding to the tension in the warp. In Fig. 8, an engine 5 driving a variable-pitch propeller 4 for ship propulsion also drives a Ward Leonard generator 1, and an associated motor 6 is coupled to a winch 35 which pays off the towing line of a trawl fishing net. To maintain constant tension by regenerative and/or mechanical braking during paying out, an electrical signal from a load cell 16, dependent on the tension in the line, controls, through a selector 46, a controller 17, associated with a desired tension selector 14a, for the field 9 of generator 1 and/or, controls through an amplifier 44 and a desired tension selector 43, a solenoid valve 42 controlling an air brake 38 associated with winch 35. Selector 46 may be arranged to introduce mechanical braking only at the termination or commencement of payout, or under emergency conditions. Changeover from automatic to manual control of regenerative and mechanical braking is effected by operation of switches 15 and 42, respectively, and a switch 45 permits disconnection of the generator and motor fields if necessary to relieve tension in emergency during automatic control. Manual control of winch motor 6 is also provided by a controller 12. Controller 17 may be a thyristor chopper. Modifications are described in which (a) the Ward Leonard generator is coupled to a variable speed propeller drive and a tachometer generator provides voltage compensation (b) the Ward Leonard generator is driven by a diesel engine of a diesel-electric propulsion system (c) the winch motor is connected in the circuit of a constant current diesel-electric propulsion system and tension is maintained constant by control of the winch motor field (d) the Ward Leonard generator is driven by a separate small prime mover and rheostatic braking is employed (e) the winch motor is of the slip ring type and is braked by current reversal or D. C. injection under saturable reactor control.
Patent GB-444381-A (GB)
Title: Improvements in and relating to electrical resistance devices
Filed: 1935-08-28
Abstract: 444,381. Automatic regulators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 28, 1935, No. 24078. Convention date, Aug. 30, 1934. [Class 38 (iv)] [See also Group XXXVI] The voltage of an automobile or like generator 16 is regulated by connecting the controlling coil 1 of an electromagnetically operated resistance 3, 6 across the generator and connecting the resistance 3, 6 in series with the generator shunt field coil 18. The resistance device comprises a coil 1 enclosing a conducting casing 2 within which is mounted an open ended magnetic plunger 4 and a quantity of mercury 3. The plunger is supported by a controlling spring 8 which conducts current to a tapered mass of resistance material 6 such as silicon carbide which is mounted in the plunger 4 and extends along substantially the whole of its length.
Patent GB-980640-A (GB)
Title: A method of and apparatus for reducing the liquid content of a material containing both a liquid and solid matter
Inventor: KNIGHTS RICHARD NORTHAM
IPC: B01D1/00
Filed: 1961-07-04
Abstract: 980,640. Filters for liquids. DOWTY ROTOL Ltd. June 8, 1962 [July 4, 1961], No. 24138/61. Heading B1D. An apparatus for reducing the liquid content of a material, e.g. china clay slurry, containing both a liquid and solid matter includes a cylinder 27, an annular chamber 30, a porous sintered bronze sleeve 29, a pipe 48 connecting the chamber to a slurry of the material under pressure, so that liquid is forced through the sleeve by the pressure and out through a port 52 and outlet connection 56, an outlet valve 57 being held open by a spring 58, and a piston 24, movable within the chamber by the action of a hydraulic jack 13 for ejecting the material from the chamber through an opening therein which is opened and closed by a ring member 39 which moves relative to a valve sleeve 45 during part of the movement of the piston. As the end of the retraction stroke of the jack 13 is reached, a lever (not shown) is tripped to effect direction of cleansing water through an inlet connection 55 (causing the valve 57 to close the outlet connection 56), and, via an annular chamber 51, outwardly through the porous sleeve 29 which is positioned, at this stage, completely outside the cylinder 27. In an alternative embodiment (not shown) the slurry is fed into the chamber 30 at a number of stations along the length thereof.
Patent GB-1491130-A (GB)
Title: Coin detector
IPC: G07D/
Filed: 1975-06-04
Abstract: 1491130 Coin detector COMPAGNIE GENERALE D'AUTOMATISME 4 June 1975 [19 June 1974] 24141/75 Heading G4V A device for recognizing coins made of ferromagnetic substance and having a given denomination utilizes a pair or pairs of closely adjacent magneto-resistances 9, 10 and 11, 12. These are positioned such that a coin to be recognized affects only one of the magneto-resistances. The resistances, as shown, are mounted on cylindrical magnets such that lines of magnetic force are perpendicular to the front faces thereof. The magneto-resistances form two branches of an electrical measurement bridge which is balanced when there are no coins present. In the presence of a coin an electronic circuit measures the imbalance of the bridge and provides an indication signal when the imbalance reaches a predetermined threshold. If a coin of larger diameter passes the magneto-resistances two thresholds are produced. A prescence channel in the circuitry prevents such a sequence producing an indication signal.
Patent GB-766278-A (GB)
Title: A pad adapted to be inserted between the leg and a leg casing
IPC: A61F13/08
Filed: 1954-08-20
Abstract: 766,278. Surgical pads. ROTTER, H. Aug. 20, 1954, No. 24277/54. Class 81(2) A pad for application against a human leg consists of a body of porous material which covers at least partially the ankle zone and at least the lower third part of the leg and has a rib which grips the ankle from behind and underneath. A pad 3 for use on the outer side of a leg consists of an elongated body of spongelike material, e.g. foam or sponge rubber, and is provided on the inside with a longitudinal rib 7 which curves at the lower end to grip the ankle from behind and underneath when in use. The rib 7 is tapered at the sides to the edges of the pad 3 and is broken in the region 10 of the knee. A slit may be formed in the upper part of the pad 3. A second pad 2 for use on the inner side of the leg is shorter than the outer pad 3, has a convex inner surface and is J-shaped to grip the ankle from behind and underneath. The pads 2, 3 are secured to the leg by a casing 1 of porous sheet material which is held in position by clips and bandaging or a rubber stocking. At the lower edge, the two sides of the casing 1 are connected by a textile band 11. The pads 2, 3 may be secured to the casing 1 by air pervious adhesive material or may be moulded in one piece with the casing 1. The pads 2, 3 alternatively may be held in place against the leg by a rubber stocking, knee-boot or gaiter-like construction to which they may be secured at the ankle end only. To facilitate the sliding-on of a rubber stocking the pads 2, 3 may be partially covered by paper or textile material. Portions of the pads may include inflatable tubes.
Patent GB-598836-A (GB)
Title: Improvements in or relating to photographic syphons
IPC: G03D3/02
Filed: 1945-09-20
Abstract: 598,836. Syphons. MASON & SONS, Ltd., E. N., and GOLDRING, E. A. H. Sept. 20, 1945, No. 24335. [Class 69 (i)] [Also in Group XX] A syphon for drawing off chemical-laden water from a washing tank comprises two concentric tubes 1 and 3, the outer tube 1 being provided with a drilled spigot 2 which forms an inlet, whilst the inner tube 3 projects through the bottom of the tube 1 and forms the outlet. A valve for regulating the rate of discharge through the syphon is provided and consists of a conically faced head 9 of larger diameter than the tube 3, the head being mounted on a screwed spindle 7 passing through a plug 5. The valve may be operated either directly or through the medium of a clutch or flexible shaft. The syphon is secured to the tank by the spigots 2 and 16.
Patent GB-633909-A (GB)
Title: Improvements in wrapping machinery
IPC: B65B39/12
Filed: 1947-09-06
Abstract: 633,909. Packing tobacco &c. by wrapping up. ROSE, A. G., PEARSON, F. H., and ROSE BROS. (GAINSBOROUGH), Ltd. Sept. 6, 1947, No. 24596. Drawings to Specification. [Class 94(i)] The subject-matter of this Specification is the same as that described in Specifications 633,907, 633,908 and 633,910, but the claims differ.
Patent GB-761366-A (GB)
Title: Improvements in or relating to waveguides and transmission lines for high frequency electro-magnetic energy
Inventor: TAYLOR JAMES FRANCIS
IPC: H01P1/22
Filed: 1953-09-05
Abstract: 761,366. Attenuators. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 6, 1954 [Sept. 5, 1953], No. 24600/53. Class 40 (8). The energy in a waveguide or a coaxial line is attenuated by introducing an attenuating fluid, e.g. water, into the guide or line. As applied to a guide 1, water is circulated from a reservoir 3 by a pump 4 through a valve 5, a dielectric body 2 which may have baffles, a valve 9, and back to the reservoir 3. The water is removed quickly by sending hot, dry air through the body 2 by means of a pump 12. In a modification (Fig. 2, not shown) both the water and air systems have by-pass pipes to allow the water and the air to be continually circulated. The valves 5, 9 may be operated by a common control shaft. Similar systems may be used for supplying water and air through a dielectric body 2 in a coaxial line 20, 21. The fluid may be circulated directly through sections of a guide or line physically isolated by dielectric sheets. The fluid may be a gas or vapour, e.g. water vapour.
Patent GB-790294-A (GB)
Title: Differential fluid pressure controlled apparatus
IPC: G01F1/38
Filed: 1955-08-26
Abstract: 790,294. Pressure gauges. FOXBORO CO. Aug. 26, 1955 [Sept. 1, 1954], No. 24650/55. Class 106 (2). [Also in Group XXIX] A pneumatic pressure transmitter controlled in response to a differential fluid pressure includes a sealed casing 10, Fig. 2, having a resilient diaphragm 74 forming part of the wall thereof, a force bar 72 extending through and secured to the diaphragm, differential pressure responsive means, e.g. the corrugated diaphragm 40 across which the pressure differential across a fluid flow orifice is applied via ports 46, 52, connected at 86 to the force bar to turn it about an axis approximately in the plane of the resilient diaphragm and a flexible linkage system 108, 116 secured to the casing and to the force bar outside the casing to inhibit axial movement of the force bar. An upright member 78 carries at 212 a flapper 104 controlling a nozzle 152 leading from a pneumatic relay 157 containing a supply and waste valve. The flexible linkage comprises two pairs of leaf springs 108, 116 secured at their lower ends to the base 76 of the member 78, the pair 108 straddling and secured at the top on the axis of the rod 72, and the pair 116 straddling the flapper, the pairs being connected by a bar 124 adjustable at 136. A block 120 carried by the spring 116 has a bar 148 embracing the flapper. Output pressure at 30 leads from the relay 157 to an indicating or controlling device and, to provide a follow-up device, is also led via 160 to a bellows 162 acting on a lever 176 adjustably pivoted at 186 on the member 78, connected at its upper end to the block 120 and adjustably loaded by a spring 182 at its lower end. Specifications 670,427, [Group XXIX], and 672,879 are referred to.
Patent GB-812880-A (GB)
Title: Improvements in or relating to semi-rimless spectacle frames
IPC: G02C1/04
Filed: 1957-08-06
Abstract: 812,880. Spectacle frames. BOURGEOIS, A. Aug. 6, 1957 [Aug. 24, 1956; March 15, 1957], No. 24686/57. Class 97(1) In a semi-rimless spectacle frame each lens is held in its semi-rim by a flexible thread or wire accommodated in a groove in the upper surface of the rim and a peripheral groove of the lens. As shown in Fig. 1, the frame comprises semi-rims 1 joined by a bridge 11, each semi-rim having a lower groove 2, in which fits a bevelled edge of the lens, and an upper groove 3, accommodating a nylon thread 4 which passes round a peripheral groove in the lens. The temporal end of each semi-rim may alternatively be secured to a brow bar. In order to allow variation of the tension of thread or wire the two ends of a piece 4 may be secured as at 25 and 27 in Fig. 15 to tubular members 26, 29 which are screw connected at 30. The ends 25, 27 may be soldered to the members 26, 29 or, as in Fig. 15, end 27 may pass through holes 28 in the member 29 and be screw clamped therein at 30<SP>1</SP>. A single tubular member may be used, the two ends 25, 27 passing through diametral holes therein and being screw clamped. In the modified form of Fig. 10, the underside of each semi-rim is flat and is provided with holes through which a thread 16 passes to form cushions 22 against which the flat upper surface of the lens is pressed by the thread or wire 4.
Patent GB-425051-A (GB)
Title: Improvements relating to apparatus for dry cleaning
IPC: D06F43/00
Filed: 1933-09-06
Abstract: <PICT:0425051/III/1> In the dry-cleaning apparatus described in the parent Specification consisting of a receptacle containing solvent and provided with a charging door, in which a low pressure is automatically established in the receptacle when the door is opened, the door is provided with a latch, the operation of which to release the door actuates an exhauster.  A low pressure is thereby produced in the receptacle before the door is opened and loss of solvent vapours is prevented.  A pivoted handle 4 is provided with a cam 23 which actuates a spring-loaded latch 25 coacting with a lug 26 mounted on the wall of the receptacle, and also a spring loaded rod 6 which is connected to a valve controlling an exhauster in the manner described in the parent Specification.  The operation of the latch may also open an auxiliary aperture in the receptacle communicating with the atmosphere, whereby the door may be opened easily.