baber/WOPTO huggingface dataset:
Patent GB-950624-A (GB)
Title: Improvements in or relating to the manufacture of cast coated paper
Inventor: MACBEAN KENNETH FORBES
IPC: D21H19/60
Filed: 1960-10-29
Abstract: Aqueous coating compositions comprise a mineral pigment, a protein adhesive and a synthetic latex of a copolymer of a vinyl ester of a fatty acid having a molecular weight of not more than 130 and a vinyl ester of a fatty acid having a molecular weight of not less than 250. The preferred components are clay, casein and vinyl acetate-vinyl stearate copolymers.  The compositions may also contain dicyandiamide and ammonia, fluxing agents such as sodium pyrophosphate or sodium hexametaphosphate, and antifoam agents such as tributyl phosphate. The compositions may be used for coating paper.ALSO:Paper is cast coated by applying to a web of paper an aqueous coating composition which comprises a mineral pigment, a protein adhesive and a synthetic latex of a copolymer of a vinyl ester of a fatty acid having a molecular weight of not more than 130 and a vinyl ester of a fatty acid having a molecular weight of not less than 250, bringing the applied coating into contact with a smooth, heated casting surface, and maintaining such contact until the coating is dry and the coated web is spontaneously released from the casting surface.  Preferred components of the compositions are clay, casein and vinyl acetate-vinyl stearate copolymers, and the compositions may also comprise dicyandiamide, ammonia, fluxing agents such as sodium pyrophosphate and sodium hexametaphosphate, and antifoam agents such as tributyl phosphate.  In examples the compositions are applied by means of an air-knife coater, the coated paper passed through an acid bath, e.g. of aqueous formic acid, and then pressed in contact with a polished chromium-plated cylinder or drum at 200-285  DEG F.
Patent GB-1241701-A (GB)
Title: New unsaturated polyamide resins
IPC: C08G69/34
Filed: 1968-08-05
Abstract: 1,241,701. Unsaturated polyamide resins. SCHERING A.G. 5 Aug., 1968 [5 Aug., 1967], No. 37319/68. Headings C3P and C3R. Unsaturated polyamide resins are obtained by reacting (1) maleic anhydride with (2) a condensation product containing free amino end groups within the range of from 0.35 to 3.5 milli-equivalents per gram of condensation product, the condensation product (2) having been obtained by reacting (a) a non-linear aliphatic or cycloaliphatic polycarboxylic acid having at least 12 carbon atoms or an alkyl ester thereof with (b) an aliphatic diamine containing at least 3 carbon atoms and having primary and/or secondary amino groups. In the preparation of the condensation product (2) there may be included in the reaction mixture (c) an aliphatic or aromatic dicarboxylic acid containing 6 to 12 carbon atoms or an alkyl ester thereof, component (c) being present in an amount of up to 40 equivalent per cent based on the total amount of components (a) and (c). The non- linear polycarboxylic acid component (a) may be a polymeric fatty acid, an adduct or copolymer of an unsaturated fatty acid with an α,#-unsaturated mono- or di-carboxylic acid, a carboxystearic acid, a carboxymethyl-stearic acid or a carboxyethyl-stearic acid, or an alkyl ester of these acids. The unsaturated polyamide may be modified by reacting it with an epoxide compound in an amount of up to 1 equivalent based on the free carboxyl groups present. The unsaturated polyamide may be copolymerized with an unsaturated monomer, e.g. a vinylaromatic, acrylic or allyl compound, in the presence of a free-radical initiator. In examples, maleic anhydride is reacted with the condensation products (2) obtained from dimeric tall oil fatty acid and 2,2,4- and 2,4,4-trimethylhexamethylene-diamine, from dimeric tall oil fatty acid and α,#-diamino-4,9-dioxadodecane, from dimeric soy-oil fatty acid and 1,3-di-4- piperidylpropane, from dimeric tall oil fatty acid and the bisaminopropyl ether of a dimeric fatty alcohol, from dimeric tall oil fatty acid and 3 - aminomethyl - 3,5,5 - trimethylcyclohexylamine, from an oleic acid-maleic acid adduct and α,#-diamino-dioxadodecane, from a C 19 -dicarboxylic acid obtained from oleic acid and trimethylhexamethylene-diamine, from an adduct of maleic anhydride and a linoleic acid methyl ester and 2,2,4- and 2,4,4-trimethylhexamethylenediamine and from dimeric soyoil fatty acid and α,#-diamino-4,9-dioxadodecane; one of the unsaturated polyamides is reacted with phenylglycidyl ether; one unsaturated polyamide is copolymerized with diallyl phthalate using tert.-butylcumyl peroxide as initiator, and the remainder are copolymerized with styrene using tert.-butyl perbenzoate as initiator.
Patent GB-846328-A (GB)
Title: Improvements relating to the attachment of hose couplings
Inventor: HARDIE JOSEPH WATSON
IPC: B21D39/04
Filed: 1957-11-30
Abstract: 846,328. Rolling; shearing. R.D. DEVELOPMENT (LANCS.) Ltd. Nov. 20, 1958 [Nov. 30, 1957], No. 37391/57. Class 83 (4). [Also in Group XXIII] A tool for clinching a metal ferrule on to a hose-end applied to a coupling spigot comprises an open-sided frame on which three rotary members are mounted so as to engage the ferrule, one member being adjustable relatively to the others to apply radial pressure to the ferrule and the other two members being mountable at alternative positions on the frame for adapting the tool to ferrules of different diameters. The frame comprises a C-shaped frame 11, one end of which is slotted to receive two rolls 28 symmetrically mounted in alternative sets of holes 31 and a tubular shank extending from the other end of the fiame and in which is an adjustable plunger 18 carrying the third roll 25. In operation, the roll 25 is retracted and the hose end with the ferrule is inserted. The roll is then advanced and the tool rotated so that the three rolls co-operate to indent the ferrule, preferably above a groove in the underlying coupling spigot. For smaller ferrules than the holes 31 provide for, the rolls 28 may be mounted in a slotted adapter 33 secured to the frame 11. The tool may be adapted for cutting away an existing ferrule by replacing the roll 25 by a sharp-edged wheel 37 angularly mounted so as to make a helical cut. The rolls 28 may also be replaced by cutting-wheels.
Patent GB-1078489-A (GB)
Title: Isolating safety valve arrangements particularly for hydraulic braking systems
IPC: B60T17/22
Filed: 1965-09-01
Abstract: 1,078,489. Fluid actuation of switches. B. J. MARKS, and A. R. NEWBURY. Sept. 1, 1965, No. 37425/65. Heading H2B. [Also in Divisions F1 and F2] In an isolating safety cut-off valve arrangement for use with multi-outlet reticulations under fluid pressure such as in hydraulic vehicle braking systems (see Division F2), a cut-off cylinder 10 is provided with a fluid inlet 19, 16 leading from a pressure source such as a master cylinder, a spring-loaded valve 11, 12 being provided in the cylinder and adapted to cut-off the supply of fluid to an outlet connection 27, 38, 40 leading to one sub-system, the valve 11, 12 being adapted to be located in a normally open position by means of a latch device 24. In order to close the valve 11, 12 the latch device 24 is adapted to be raised by energization of a solenoid 29A when a spring-loaded contact 30 (not shown), provided in an actuating cylinder 26 is earthed when a plunger 37 rises to its extreme uppermost position should a leakage occur in the sub-system leading from the connection 40. A plurality of contacts such as 30 (not shown), 31 and 32 may be mounted in the end cover 33 of the actuating cylinder 26 the longest (32) being earthed to illuminate a green light to indicate that the system is working properly. The contact 31 of intermediate length upon being earthed illuminate an amber light to indicate that the operation of the mechanism is approaching an unsafe condition. When the shortest of the three contacts 30 is earthed the solenoid 29A is energized and a red light is illuminated indicating failure of the subsystem. When the valve 11, 12 closes against its seat 13 a fourth spring-loaded contact 41 is earthed by the opposite end of the valve and a red light or similar danger signal is closed. The fourth contact 41 is housed in a stem 42 slidable in an insulatory plug 43 fitted to the outer end of the cylinder 10. The stem 42 is provided with a knob 45 so that the stem may be urged against a spring 44 for re-setting the valve following an unlatching movement.
Patent GB-368408-A (GB)
Title: Improvements in or relating to thermionic valves of the screened grid type
IPC: H01J19/38
Filed: 1930-12-11
Abstract: 368,408. Thermionic valves. BULLIMORE, W. R., 22, Highbury Grove,.London. Dec. 11, 1930, No. 37429. [Class 39 (i).] In screened-grid thermionic valves with an electrostatic screen forming a closed box or cage enclosing the control electrode, the cage has parallel sides 7, Fig. 2, of separate helical-wire windings joined at their vertical edges by imperforate sheet metal channels 8. The cage is closed at the top by a rectangular metal cap 25, Fig. 6, and is built up on, and supported from, a flanged base 6. The sides 7 may comprise windings as described in Specification 361,867. Mica plates 11 surround the cage and carry two anode plates 12 connected to a lead 28. A mica plate 33 at the top of the cage has apertures to receive the cylindrical cathode 29, the control-grid supports 34 and the leads 32 to the cathode heater 31. In a pentode, an additional grid is inserted between each plate 12 and the cage, these grids being connected to the cathode and carried by rods in apertures in the plates 11. The cathode may be replaced by a hairpin-shaped filament, Fig. 1 (not shown), with its bend spring-supported from an additional mica plate at the top of the control grid. Specification 368,407 also is referred to.
Patent GB-1197464-A (GB)
Title: Nuclear Reactors
Inventor: EBELING DOUGLAS ROY
IPC: G21C7/32
Filed: 1967-08-15
Abstract: 1,197,464. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 1 Aug., 1968 [15 Aug., 1967], No. 37449/67. Heading G6C. In a light water-cooled steam generating nuclear reactor, coolant flow instability within the fuel channels is reduced by the automatic adjustment of coolant flow in the channels in correspondence with neutron flux density. The water is fed into the lower ends of the vertical fuel tubes through a multiple outlet port valve. The ports are arranged in groups, having different port sizes, which supply different core zones. The valve is driven by a worm gear from an electrical actuator responsive to the neutron flux density. The port openings provide each tube with a mass flow proportional to the heat output of the fuel therein and separate control signals are used corresponding to both the overall and zone neutron flux densities.
Patent GB-829434-A (GB)
Title: Improvements in multitubular steam boilers and water heaters
IPC: F22B7/12
Filed: 1956-12-10
Abstract: 829,434. Return tube steam boilers. ROBEY & CO. Ltd., and PERRY, F. B. Dec. 3, 1957 [Dec. 10, 1956], No. 37605/56. Class 123(2) In a return tube steam boiler having a cylindrical shell 1 with end plates 2, 3, a furnace flue 4 discharges hot gases into a wet-back combustion chamber 5 whence first-pass return tubes 15 convey the gases to front smoke box 14 and second pass tubes 16 conduct the gases from the smoke box to a chimney outlet box 17. The combustion chamber is formed by a flat plate 7 secured to the end of the flue 4 and having its upper and lower edges welded or riveted to a semi-cylindrical plate 8, the ends of the chamber thus formed being closed by curved plates 10. In a modification, two flues discharge into the chamber 5, the first pass tubes 15 being disposed between the flues. In another modification, a single flue is located near the bottom of the shell with the first pass tubes grouped on each side, the second pass tubes being disposed above the flue.
Patent GB-956491-A (GB)
Title: Improvements in or relating to centrifugal dirt separators
IPC: B04C5/00
Filed: 1961-10-19
Abstract: 956,491. Centrifugal separators. ESCHER WYSS G.m.b.H. Oct. 19, 1961 [Oct. 21, 1960], No. 37611/61. Heading B2P. In a separator for removing dirt from fibrous or flabby suspensions, the suspension is rotated by vanes 32 on a rotary support 24 in a vertical chamber 1 and the purified suspension is removed through a tube 37 extending vertically and centrally through the support. The suspension is introduced tangentially or radially through a pipe 16 and the separated dirt collects in the conical bottom 10 of the chamber. The support 24 extends below the vanes 32 and is secured by a ring 25 to a member 23 supported by ball bearings 22, 26 around a bush 21 and driven by a belt 28. Alternatively, the member 23 may be in the form of a toothed ring member ofa transmission. The tube 37 is mounted between the bush 21 and a stationary tube 36 and is axially adjustable by means of handgrips 38.
Patent GB-1404006-A (GB)
Title: Geophysical prospecting methods
IPC: G01V1/00
Filed: 1972-08-11
Abstract: 1404006 Seismic prospecting CONTINENTAL OIL CO 11 Aug 1972 [25 Aug 1971 24 Feb 1972] 37616/72 Heading H4D A seismic prospecting method includes establishing at a first earth point a first crosspattern comprising a line of source locations bisected generally perpendicularly by a line of receiver locations; establishing at a second earth point a second, similar cross-pattern; at each earth point recording the waves received from the respective source locations in turn; and processing the recorded data to determine substratum strike and dip for reflection point patterns within each quadrant of the crosspatterns.  In the Fig. 1, arrangement a source-receiver cross-pattern at a surface location comprises a line of source locations S1 to S12 bisecting at right angles a line of receiver locations R1 to R12. This pattern gives coverage of local reflection points forming quadrantally arranged patterns 16, 18, 20, 22 (which will be shifted slightly if the reflecting stratum is not horizontal). Further source-receiver cross-patterns are similarly at other, spaced earth surface locations, and additionally by shooting from the source location of one cross-pattern into the receivers of another cross-pattern there is obtained coverage of offset reflection points between the two cross-patterns. Data processing.-Traces relating to the reflection points in one quadrant are read to obtain the reflection travel times for reflecting horizons. The times are corrected as necessary, e.g. for source and receiver elevation. Estimates of the slope of, depth of and average velocity down to each horizon are made. For a particular horizon, an iterative process is used to compute a sloping plane which best fits the reflection points (i.e. for which the sum of the squares of the residuals is a minimum, a residual being the difference between a measured travel time and the corresponding computed travel time), and hence to compute improved estimates of slope, depth and average velocity. The process is repeated for other horizons and for other quadrants. Displays showing variations in the amount and direction of dip from one quadrant reflection point pattern to another are produced from the computed data. The computed residuals may be used to provide an estimate of weathering or to test the assumption of a planar reflecting horizon. The processing is done by analogue or digital apparatus.
Patent GB-361150-A (GB)
Title: Improvements in or relating to fire baskets, garden incinerators and the like
IPC: F23G5/42
Filed: 1930-12-13
Abstract: 361,150. Refuse-burning stoves ; firebaskets. VASEY, T., Surrenwood, Surrenden Road, Brighton, Sussex. Dec. 13, 1930, No. 37645. [Class 126.] An incinerator, fire-basket, or the like comprises an open-ended body portion with legs or extensions at both top and bottom so that it may be inverted, together with a grate or fuel support adapted to be supported at the lower end ; the life of the device is prolonged by inverting it, so that the same part of the body is not always in the hottest zone. Fig. 1 shows an incinerator having an invertible body 1 with legs 2 at top and bottom and a conical fuel support 6 having a downturned flange 6a engaging over the upturned ends of brackets 4, by .which it is positioned in the body with an air-space around its periphery. In a modification the support 6 is carried below the bottom of the body 1 by brackets attached to the legs 2, in which case it may be of somewhat greater diameter than the body. In a further modification, the body 1 is extended beyond the brackets 4 which carry the support 6, and is unprovided with feet. A portion of the wall of each extension is cut away to form an ash-pit opening, a detachable plate covering the cut-away part at the top end. The fuel-support or grate, Fig. 6, may be perforated and have a central aperture 6b from which extend bars 7 forming a central air-space in the fire. Fig. 7 shows an alternative form of grate, comprising a wire or rods 11 welded or otherwise secured to a ring 12. Fig. 9 shows an invertible fire-basket comprising rings to which are secured vertical bars, some of which are extended at each end to form feet 14b, whilst the ends 14c of the remainder are splayed outwardly to facilitate feeding in the fuel. The bottom grate is formed with projections resting on the lower ring and extending between the vertical bars.
Patent GB-932704-A (GB)
Title: Apparatus for measuring the quotient of two electrical quantities
IPC: G01R27/12
Filed: 1961-10-23
Abstract: 932,704. Measuring impedance. BROWN, BOVERI & CO. Ltd. Oct. 23, 1961 [Oct. 25, 1960], No. 37857/61. Class 37. In an apparatus for measuring the quotient of two sinusoidal electrical quantities, e.g. impedance as a quotient of voltage (u) and current (i), the quantity (i), to be taken as the denominator of the quotient, is supplied to a parallel circuit consisting of a choke coil 1 and two Zener diodes 2 and 3 connected in series in opposite directions, in which it is converted into a quantity iz having a relative phase displacement proportional to the reciprocal value of i. Signals representing i and iz are fed to a phase comparator 8, which produces impulses the breadths of which are proportional to the phase displacement of iz, i.e. to the reciprocal of i. The amplitudes of these impulses are made proportional to the other quantity u, to be taken as the numerator of the quotient, so that the area of each impulse is proportional to the required quotient. Each impulse is then passed through an integrating circuit 10 which produces a triangular pulse whose peak amplitude is proportional to the quotient, and this peak value is indicated on the meter 11. The operation of the parallel circuit may be explained by reference to Fig. 2, where the input current i is shown in Fig. 2 (a), and the voltage that would normally appear across the inductance 1 if the current i passed through it is represented by curve U DR  in Fig. 2 (b). This voltage at first is sufficiently large to cause the Zener diode 2 to conduct in its reverse direction, so that the reverse voltage U R2  across this diode is applied across the inductance 1, and the actual current through the inductance builds up as shown in Fig. 2 (c). The current through the diodes (iz = i - i DR ) therefore follows a curve as shown in Fig. 2 (a). At the point where i DR  = i and iz = O the voltage across the Zener diode pair reverses, and i DR  starts to fall. i DR  depends only on the breakdown voltages of the Zener diodes and the value of the inductance 1 so that the largest phase differences #γ between iz and i occur for the smallest values of i (iz returns to zero more rapidly for smaller peak i) and it can be shown that this difference is rigorously proportional to 1/i. Voltages proportional to the currents i and iz are tapped across the resistorr 4 and 5 and converted in the peak limiters 6 and 7 into rectangular form. They are then supplied to a thyratron 8 which delivers an output pulse only when the two inputs are of different polarity, so that the width of this pulse is proportional to the phase difference between i and iz, i.e. proportional to 1/i. This pulse is then amplitude modulated by the voltage u in the unit 9, and eventually the quotient u/i is displayed on the meter 11 as above described.
Patent GB-626903-A (GB)
Title: Improvements relating to water softening apparatus
IPC: C02F1/42
Filed: 1946-12-30
Abstract: 626,903. Purifying liquids. RAINSFORD & LYNES, Ltd., and LYNES, R. K. Dec. 30. 1946, No. 37973. [Class 46] [Also in Group XXVIII] In cylinder-type base-exchange apparatus the branch pipes 17, Fig. 2, 18b, Fig. 3, of the external pipe-work, which are respectively connected with the water inlet and outlet openings of the cylinder, are formed or provided with ring-like parts 17a, 18a, positioned so that connecting sleeves 20 may be passed therethrough to permit ready attachment to and detachment from the cylinder of the external pipe-work assembly without dismantling the pipe-work. Each sleeve 20 screws into a bush 12 or 13 against a washer, in front of which the ring 17a or 18a bears, the sleeve 20 having a corresponding flange 20d abutting against a further washer 21 on the outside of the ring. Apertures 20c are provided in that part of the sleeve 20 within the ring 17a. An edge filter unit 14 is mounted on an extension member 22 screwing into the interior of the sleeve 20, the sleeve 20 having a bore of such size that the filter 14 and extension 22 may be withdrawn independently of it. The extension 22 also has apertures 22c providing communication with the interior of the filter unit 14. The outlet bush 13, Fig. 3. is provided with an extension having a flange 13a, against which is screwed the flange 23a of a filter housing member 23, to permit the filter unit 15 to be withdrawn through the bush 13 without removing the baseexchange material. Perforations in the housing 23 fine enough to prevent access of the material are provided. A drain-cock 18d closed by a plug 18f is also fitted to the ring member 18a. Specifications 596,202 and 608,890 are referred to in the Provisional Specification.
Patent GB-323631-A (GB)
Title: Motor car transmission mechanism
IPC: B60K17/02
Filed: 1928-12-24
Abstract: 323,631. Standard Motor Co., Ltd., Wilde, A. H., and Maudslay, R. W. Dec. 24, 1928. Facilitating changing speed; clutches, claw and friction.-In a motor vehicle, an auxiliary clutch, comprising a dog clutch combined with a pilot friction clutch, interposed between the gear box and back axle, is connected with the main friction clutch so that the auxiliary clutch is first engaged and is followed by the engagement of the main clutch, whilst on disengagement the auxiliary clutch is disengaged after the main friction clutch has been withdrawn. The auxiliary clutch comprises a male cone element 9, with internal teeth 10, mounted on a tail shaft 6 and a female element 16 with radial pegs 18 engaging between the teeth of a dog member 12 sliding on an extension 2 of the gear box shaft. The element 16 has a flange 19 which coacts with a shoulder on the dog member, and is engaged by rods 22 secured to a ring 21, which is normally pressed by a spring 20 towards engagement of the elements 9, 16. A channelled ring 13 engaged by a fork 14 is secured to the dog, and a spring (not shown) attached to the fork biases the clutch dogs into engagement. Thus the main clutch is firstly disengaged, followed by the dogs against the action of the spring (not shown) until the shoulder engages the flanges 19 and withdraws the coned-element 16.