baber/WOPTO huggingface dataset:
Patent GB-1427459-A (GB)
Title: Digital speech transmission-
IPC: H04B14/06
Filed: 1974-03-21
Abstract: 1427459 Delta modulation L M ERICSSON PTY Ltd 21 March 1974 [21 March 1973] 12689/74 Heading H3H In a companding delta modulation speech transmission system, background noise between syllables is reduced by modifying the digital bit stream output of the encoder when the input analogue signal is below a predetermined level to reduce the rate of occurence of a plurality of successive bits which cause companding within the system such that the analogue output of the decoder is of reduced level with respect to said input. Fig. 2 shows a known delta modulation encoder to which the invention may be applied as shown in Fig. 3. In Fig. 2, 25 detects sequences of "1"s or "0"s in the output bit stream from comparator 20 to control via a compand level control circuit 19, polarity stage 26 and integrator 22 the feedback signal 23. All this is represented by 32 in Fig. 3. In Fig. 3, the input analogue signal on line 21 is fed through half-wave rectifier 35 to a level detector 39 and AND gate 38 which also receives a signal from the sequence detector 25 of the encoder 32 via a divide-by-two circuit 41, 42, whereby Ex OR gate 43 inverts the last bit of 4 successive "1"s or "0"s from the encoder when the input at 21 is below the level set at 40. Thus the desirable low level fall off of a carbon microphone may be simulated when a magnetic microphone is used. Modifications.-The output of the level detector 39 may control the level of the compand bias signal 29 (obviating 38, 41, 42 and 43). The compand control voltage 28 may be compared with the predetermined level instead of input 21 (obviating the restifier). The invention may be applied to a two way loud-speaking telephone system, Fig. 6, not shown, each station including a coder (32), decoder (64) and a priority circuit (63) so that speech can be transmitted in only one direction at a time to avoid acoustic feedback.
Patent GB-1514192-A (GB)
Title: Method and apparatus for detection of an immunological reaction and for determination of concentration of immunologically reactive biological particles
IPC: G01N33/553
Filed: 1975-03-27
Abstract: 1514192 Immunological test device GENERAL ELECTRIC CO 27 March 1975 [1 April 1974 (3)] 12834/75 Heading G1B Apparatus for detecting immunologically reactive substances comprises a solid substrate member having a metallized surface area, and means overlying the substrate member for locating a thin layer of liquid on the metallized surface. The substrate member may be of glass, metal or plastics. The metallized layer may be a non-continuous layer of indium globules of average thickness 2000 to 4000A, a continuous film of a single metal or of an alloy of two metals such as indium and gold on a layer of a single metal or an alloy of two metals with an oxide film of one of the metals, for example indium/indium oxide, nickel/nickel oxide, gold/indium alloy/indium oxide. The means for providing an immobilized layer of moisture may be a layer of gel less than 1 mm thick, a cellulose or cellulose acetate membrane or a filter paper or tissue, or alternatively a glass cover member may be applied to the surface of the substrate member and moisture introduced to the area around the inner edges of apertures formed in the cover member or along edges of the cover member by introduction of water into the apertures. In the embodiment of Figs la, 2b, a dish with a metallized upper surface 11 contains agar or agarose gel 12 having wells 13a to 13e formed through it, and immunologically reactive components placed in the wells, for example in 13a, 13c respectively diffuse outwardly forming a precipitin area 14 which remains for inspection on the metallized surface of the dish when the gel layer has been removed. In the embodiment of Fig 11B, a monomolecular layer 10c of one immunologically reactive component is formed on the metallized surface 10b of the substrate 10, one or more drops of water are applied to the edges of cover member 11 so that an immobilized moisture layer is formed between members 11 a and 11 and one or more drops of a solution of the other of the immunologically reactive components is placed at the moistened edge of member 11 and forms a second monomolecular layer 11a' the width of which is said to be a measure of the concentration of the latter component. The application of the second immunologically reactive component solution through an apertured cover plate may take place under pressure through an L-shaped tubing inserted into one of the apertures Figs 11A to 12B (not shown), when the solution may flow through a channel (60) formed in the underside of the cover member. The spreading of the solution of the second component may be speeded by application of electrodes at opposed ends of such a flow-path.
Patent GB-1040122-A (GB)
Title: Process for preparing monochloro-ªŠ-caprolactams
IPC: C07D201/10
Filed: 1964-03-26
Abstract: A mixture of monochloro-e -caprolactams, mainly b - and g -chloro, is obtained by irradiating with light a mixture of monochlorocyclohexane and a nitrosation agent at -20 DEG  to 50 DEG  C., and subjecting the resulting monochlorocyclohexanone oxime hydrochloride to a Beckmann rearrangement at 90-150 DEG  C., directly or after neutralization to free oxime.  Specified nitrosation agents are NOCl, NO + Cl2, NO + NO2 + HCl, NOCl + HCl, and NO + Cl2 + HCl. Some caprolactam is also obtained in the examples, and one example also prepares cyclohexanone oxime hydrochloride from cyclohexane.
Patent GB-494973-A (GB)
Title: Noise damping machine mountings
IPC: F16F1/36
Filed: 1937-05-07
Abstract: 494,973. Dynamo-electric machine mountings. WOODS, Ltd., M. W., and DALY, B. B. May 7, 1937, No. 13090. [Class 35] [Also in Group XXVI] An electric fan motor is mounted by arms 1 inserted without clamping into pockets made of or lined with felt, rubber, or like sound - deadening material. The pockets are mounted within recesses in the support 3 or are carried by metal saddles 4 which may have a lapping end wall 5 carrying a strip of felt &c. Each pocket may be formed by a wrapped strip or by moulded material.
Patent GB-1141835-A (GB)
Title: Improvements in or relating to respiratory apparatus
IPC: A62B9/02
Filed: 1966-03-24
Abstract: 1,141,835. Nutrient gas control device for respiratory apparatus. O. H. DRAGER [trading as DRAGERWERK, HEINR & BERNH. DRAGER]. 24 March, 1966 [24 March, 1965], No. 13160/66. Heading A5T. A device for controlling the supply of nutrient gas to the circuit of a closed-circuit respiratory apparatus is illustrated with reference to Fig. 3 and comprises a lung-controlled valve having an axially displaceable closure member 13, a rocking lever K arranged to control said valve and having an end thereof nearer to the valve acting on the valve closure member by way of a push member 23, a chamber 12 which contains gas at high pressure when the device is in use and which is bounded at a side by that side of said valve closure member opposite to the valve seat 14, and a displaceable pressurecompensating pin 15 which extends outwardly through a wall of said chamber, and is connected to said side of said valve closure member and is of a cross-sectional area approximately equal to the internal cross-sectional area of the valve seat.
Patent GB-674894-A (GB)
Title: Improvements in or relating to safety devices for circular saws
IPC: B27G19/02
Filed: 1949-05-18
Abstract: 674,894. Machinery guards. ROE, J. E. May 17, 1950 [May 18, 1949], No. 13223/49. Class 80 (iv). A box-like guard 11 for a circular saw has a transparent panel 12 and carries a transparent rectangular block 13 having rounded edges. to .ride on the material being cut. A pin carried by lugs on the guard 11 passes through an elongated bore 13c in the block 13 so that the latter may occupy the position shown in full lines or, e.g. when cutting sheet copper, be inverted to the dotted line position in which it is spring- pressed downwards on to the material. The guard 11 is vertically adjustable on a bar 16 and is of substantial width so that the viewing angle may be changed should the panel 12 become obscured. A louvred lamp compartment 17 is provided. According to the Provisional Specification roller-carrying elements may replace the block 13.
Patent GB-1112545-A (GB)
Title: Improvements in or relating to sheet stacking devices
Inventor: EBSCHNER WALTER
IPC: B65H29/14
Filed: 1966-03-25
Abstract: 1,112,545. Sheet stacking apparatus. KARTONAGENMASCHINENWERKE KAMA, VEB. 25 March, 1966, No. 13239/66. Heading B6H. Sheets 7 delivered from a sheet processing apparatus are discharged in an overlapped relationship into the nip formed by a pair of superposed endless conveyer belts 1, 2, which are trained over guide rollers to form an arcuate guide and divert the sheets from a horizontal feeding direction to a vertical one. The delivery end of the lower conveyer belt 1 forms the lower edge of a delivery channel 3, the upper edge of the channel 3 being formed by a separating plate 6 whose integral tines project into the spaces formed by spaced belts 4 of an auxiliary conveyer 4 disposed above the upper conveyer 2. Belts 4 are guided over a plate provided with projections 5 which deflect the sheets into the channel 3.
Patent GB-322418-A (GB)
Title: Improvements in tools for removing paint, varnish or the like
IPC: B44D3/16
Filed: 1929-04-29
Abstract: 322,418. Parr, J. N. April 29, 1929. Scrapers.-A tool for removing paint, varnish &c. comprises a scraper 1 electrically insulated from but in thermal contact with an electric heating element 4 current to which is supplied by a flex passing through the handle 3. The scraper and heating element are carried in a frame 2 secured to the handle and insulated from the heating element. In a modification the frame 2, Fig 2, may be formed as a chisel - shaped scraper housing an insulated electric heating element 4. In this modification the heating element terminals are located at the end of the handle and are enclosed by a screw cap 6 through which the flex passes.
Patent GB-987810-A (GB)
Title: Process for producing sulphonium compounds
IPC: C07C381/12
Filed: 1963-04-03
Abstract: A process for producing a hydroxyaryl sulphonium chloride comprises reacting a mixture of a thioether and a phenol with chlorine. Suitable reactants are listed in the Specification. The examples describe the preparation of 4-hydroxyphenyldimethyl-, 4-hydroxyphenyldi-n-octyl-, 4-hydroxy-2-methylphenyldimethyl-, 2 - hydroxy - 5- methylphenyldimethyl- and 4 - hydroxyphenylmethylphenyl - sulphonium chlorides using the appropriate phenol with dimethyl, di-n-octyl or methylphenyl sulphide.
Patent GB-706123-A (GB)
Title: Improvements in fastening devices for boxes, crates and the like
IPC: B65D45/24
Filed: 1951-06-05
Abstract: 706,123. Boxes. GRIFFITH, G. June 4, 1952 [June 5,1951], No. 13278/51. Class 18 [Also in Group XXV] A bolting device for fastening parts such as the lid or walls of a box or crate comprises a bolt with a flat tail 2, Fig. 2, in a plane tangential to the threaded surface and permanently secured by screws or rivets 5 to the inside of the box. The threaded part of the bolt carries a washer 7 and passes with clearance through the lid 4 that carries on its upper surface a slotted plate 10, pivoted at 11 and taking the thrust of the nut. The end of the slot is bordered by upturned lugs 13, that prevent lateral movement of the plate 10 after the nut is screwed down, and are perforated to receive a sealing wdre. In a modification the bolt is replaced by a pin splined at 18, Fig. 4, to pass a lug 16 on a collar. On pressing the collar down the lug passes fro.m the spline into a narrow cam slot and clamping is completed by rotating the collar. Projections 19 on the collar abut the plate 10.
Patent GB-1470513-A (GB)
Title: Sealing containers
IPC: B65D51/18
Filed: 1974-03-20
Abstract: 1470513 A two element cap U G CLOSURES & PLASTICS Ltd 20 March 1974 [20 March 1973] 13297/73 Heading B8T A cap for sealing storage jars comprises an outer member which may be made of rigid material and which consists of a circular top 1 and a depending skirt 3, the skirt having a continuous or interrupted annular ridge 5; and an inner member made of a flexible resilient plastics material, with a top 7 from which depends an inner skirt 9 having an annular bead 19 which engages a corresponding bead 21 on the jar 17 to hold the cap in sealing contact with the top of the jar. Surrounding skirt 9 and integral with it is an outer skirt 11 circumferentially disposed cutaway portions (not shown) extending through the inner and outer skirts to lend them flexibility. The inner member is held in position within the outer member by the edge of depending skirt 9 remote from the top, seating an annular ridge 5. The cutaway portions may be either radially or obliquely directed.
Patent GB-1203876-A (GB)
Title: Charging device for a furnace
IPC: C21B7/18
Filed: 1968-03-19
Abstract: 1,203,876. Charging blast furnaces. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. 19 March, 1968 [20 March, 1967], No. 13312/68. Heading F4B. In blast furnace charging apparatus of the double bell type a rotatable distributing hopper 3 has its bottom closed by a small bell 10 which is covered with a protective conical member 9. Guiding means comprising spaced slide bars 4 resting on a framework 5, and a counterbalance device permit vertical travel of the hopper 3, the vertical travel being limited by stops 8 and 8a integral with the framework 5 which rests on a raceway 7. A suspension device 2 incorporating coaxial tubular members permits the two bells 10, 18 to be independently raised and lowered as required to effect charging of the furnace. In the raised position the periphery of the small bell 10 presses against an annular seal 15. A pipe 16 allows gas from the furnace to escape to recuperators, a further seal 17 being provided to prevent gas exiting via the top of the furnace direct to the atmosphere. The lower end of the protective cone 9 is slightly outwardly flared for deflecting the charge clear of the lower edges of the small bell 10.
Patent GB-133818-A (GB)
IPC: B60S9/22
Abstract: 133,818. Rapson, F. L. Nov. 14, 1918. Addition to 129,055. Stands or supports for vehicles. -The jack described in the parent Specification is provided with means by which it can be locked positively in either a vertical or substantially horizontal position, and the axle fittings are constructed so that similar jacks can be fitted to the front and back axles of the motor-vehicle. A disk 3, Fig. 2, having projections 4 is secured on a lug 2 extending from the jack casing 1 and is rotatably mounted in a casing 6 which is secured to the front axle 8. A spring 11 normally forces the projections 4 into recesses 12 in the rear face of the casing 6, thus locking the jack in either the vertical or horizontal position. When the operating handle is placed on the projection 13 and forced inwards, the projections 4 are disengaged from the recesses 12, and the jack can be rotated. The jack can be additionally supported in inoperative position by a rubber-covered spring clip (not shown) mounted on the spring of the vehicle. The lug 2, Fig. 5, is rotatably mounted in the casing 6 which forms part of a split ring embracing the rear axle. A coil spring 21 forces one end of a lever 20 mounted on the jack casing into one of a pair of recesses 22 in the casing 6. The other end of the lever 20 is adjacent the projection 13 so that when the conical end of the handle is pushed over the projection, the outer end of the lever 20 will be raised and the consequent release of the other end permits the rotation of the jack. The lever 20, Fig. 9, is mounted on the disk 3 and is disengaged when the rod 34 is moved inwards by the end 26 of the handle.
Patent GB-1077817-A (GB)
Title: Apparatus for the continuous measurement of the level of electrically conductive liquids
Inventor: CUYVERS KARL
IPC: G01F23/26
Filed: 1965-03-30
Abstract: 1,077,817. Transformers. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). March 30, 1965 [April 6, 1964], No. 13383/65. Heading H1T. [Also in Division G1] The level of a conductive liquid 2, Fig. 1a in a container 1 is measured by the losses which it produces in the coupling between a primary winding 11 and a secondary winding 4, the secondary current being measured at 6, and there being a core member arranged between the two windings in the form of a plurality of part circular soft iron segments 8, 9. The segments 8, 9 may be semi-circular or other fractions of a circle, and together with the windings they effectively constitute a transformer. The primary 11 may be situated outside the vessel 1, which is of stainless steel, the secondary 4 being wound on a soft iron core 5 and protected from the liquid by a stainless steel tube 3. Alternatively, the primary may be immersed in the liquid, (Fig. 2, not shown), and protected from it by a stainless steel casing (9) which carries the segments (8, 9). The windings carry ceramic beads for insulation at high temperatures, when for example, molten metal is being measured. A thermistor 12, Fig. 1a, may be included in the primary or secondary circuit to compensate for temperature variations.
Patent GB-475100-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J40/06
Filed: 1936-05-12
Abstract: 475,100. Photo - electric devices. BAIRD TELEVISION, Ltd., and DENISOFF, A. K. May 12, 1936, No. 13428. [Class 39 (i)] In electron-discharge devices having an electron-emitting electrode activated by light or the impact of other electrons, the surface consists of a layer of silver telluride upon which is deposited a further layer comprising a compound of tellurium and a photo-electrically sensitive metal such as caesium. In the discharge device shown a semi-cylindrical silver plate 4 is carried by two steel tubes 3, slidable on rods 2, secured in the pinch of the envelope 1, and coacts with a rod-like electrode 5. The plate is moved by magnetic means to a position opposite a lateral branch 6 of the envelope in which is an open-ended tube containing tellurium which is heated so as to deposit on the plate. Excess is withdrawn through the connection 7, and the plate moved back to its position opposite the electrode 5. Caesium vapour is then admitted through the tube 8, and the device subjected to a time-temperature cycle. It is then cooled and sealed.
Patent GB-754874-A (GB)
Title: Lubricating compositions
Filed: 1954-05-10
Abstract: A lubricating composition comprises a major proportion of a water-miscible polyoxyalkylene fluid which has lubricating properties, and a minor proportion of boric acid, a water-soluble aliphatic hydroxy carboxylic acid or a watersoluble sulphhydryl analogue thereof, or of a mixture of two or more such acids. Preferred water-miscible polyoxyalkylene fluids are the polymers or copolymers of one or more alkylene glycols or alkylene oxides and the ethers and esters of such polymers or copolymers.  A list of suitable water-soluble aliphatic hydroxy carboxylic acids is given, the acids being subdivided into monohydroxy carboxylic acids, polyhydroxy carboxylic acids and hydroxy polycarboxylic acids.  In the examples, lubricating compositions are described which consist of (a) an ethylene oxide-propylene oxide copolymer and boric, citric, tartaric, lactic or alphahydroxy valeric acid; (b) polyethylene glycol and thioglycollic acid; and (c) butylene glycol-ethylene glycol copolymer and glycollic acid.  U.S.A. Specifications 2,425,755 and 2,425,845 are referred to.ALSO:A lubricating composition, particularly suitable for lubricating gears operating under extreme pressures, comprises a major proportion of a water-miscible polyoxyalkylene fluid which has lubricating properties, and a minor proportion of boric acid, a water-soluble aliphatic hydroxy carboxylic acid or a water-soluble sulphhydryl analogue thereof, or of a mixture of two or more such acids.  Preferred watermiscible polyoxyalkylene fluids are the polymers or copolymers of one or more alkylene glycols or alkylene oxides and the ethers and esters of such polymers or copolymers.  A list of suitable watersoluble aliphatic hydroxy carboxylic acids is given, the acids being subdivided into monohydroxy carboxylic acids, polyhydroxy carboxylic acids and hydroxy polycarboxylic acids.  In the examples, lubricating compositions are described which consist of (a) an ethylene oxide-propylene oxide copolymer and boric, citric, tartaric, lactic or alpha-hydroxy valeric acid, (b) polyethylene glycol and thioglycollic acid and (c) butylene glycol-ethylene glycol copolymer and glycollic acid.  U.S.A. Specifications 2,425,755 and 2,425,845 are referred to.
Patent GB-694917-A (GB)
Title: Improvements relating to pump controls for hydraulic power hoists
IPC: F04B23/10
Filed: 1951-06-07
Abstract: 694,917. Rotary pumps. TEVES, A., TEVES, H., and TEVES, E. A., [trading as TEVES MASCHINENUND ARMATURENFABRIK KOMMANDIT-GES., A.] June 7, 1951 [June 7, 1950], No. 13555/51. Class 110(ii) [Also in Groups XXVIII and XXIX] The output of a combined sliding-vane and reciprocating-piston pump is controlled through displacement of the rotary pump casing 4, containing a ball-race, which varies the capacity of the latter pump and also the strokes of the vanes 3 which act as reciprocating pistons. The pump may be used in a hydraulic power hoist of. the type described in Specification 694,873, [Group XXIX]. the vane pump delivers liquid into a suction passage 8 leading to cylinders in a rotor 2 and the delivery from the undersides of vanes or pistons 3 passes to a passage 6 for use externally. When the passage 6 is throttled by partially closing a valve, pressure builds up and forces a piston 5 to the right to increase the size of the crescent-shaped chamber C and also the strokes of the vanes to increase the supply of liquid to the passage 6. An abutment 7 causes a pressure build-up in the crescent-shaped chamber, helping the piston 5, and also guides the liquid into the passage 8.
Patent GB-755774-A (GB)
Title: Improvements in or relating to x-ray tables for medical use
IPC: A61B6/04
Filed: 1954-05-10
Abstract: 755,774. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 10, 1954 [May 13, 1953], No. 13563/54. Class 98 (1). An X-ray table 1 is rotatable through a fixed range without sliding along a curved surface 2 of a supporting base 5 by flexible means 18 connected to the table 1 at points 6, 7 and engaged by a rotatable disc 17. The dimensions of the parts and the positions of points 6, 7 are so chosen that if the base 5 were rolled in contact with table 1, the locus of the centre of disc 17 would approximate closely, over the range of movement of the table, to an ellipse of which points 6, 7 are the foci. Disc 17 is mounted at a point on a line perpendicular to the table and passing through its line of contact with the base when the table is midway between its extreme positions, and may be resiliently mounted to keep member 18 taut. Member 18 may be a belt, rope or chain driven by engagement with disc 17, which may be driven by a motor or by hand by means housed in base 5. To prevent longitudinal slipping, tapes 11, 12 fixed at 13, 15 to table 1 pass over the curved surface 2 and are secured to the base at 14, 16.