baber/WOPTO huggingface dataset:
Patent GB-827343-A (GB)
Title: Improvements in the drive of machines for the treatment of textile or other materialin open width
Inventor: MYCOCK WILLIAM
IPC: D06B3/36
Filed: 1957-12-11
Abstract: 827,343. Feeding webs. CALICO PRINTERS ENGINEERS Ltd. April 16, 1958 [Dec. 11, 1957], No. 38448/57. Class 100(1) In an apparatus for treating webs, e.g. of fabric, of the type in which the web passes through a plurality of baths and is fed by pairs of rollers, each pair of rollers is driven through two pulleys at least one of which is a cone pulley, a belt passing around the pulleys being movable in response to a change in position of a compensating roller engaging the web to increase or decrease the speed of the rollers. As shown a web b is fed by rollers C<SP>2</SP>, C<SP>3</SP> driven through an inclined cylindrical pulley F and a coned pulley F' connected by a belt d<SP>2</SP>. A compensating roller B on an arm d rocks an arm E carrying a belt guiding roller D<SP>2</SP> through a link d<SP>2</SP> upon movements, due to variations in web tension. Weights G and g' counterbalance the arms d and E respectively. The initial tension may be adjusted by a weight H slidable in arm E or on the arm d. In a modification, the axes of the pulleys are parallel and the belt is tensioned by a jockey pulley. In a further modification, both pulleys are cone pulleys.
Patent GB-877623-A (GB)
Title: New phthalazinium compounds and their pseudo bases and the anhydrides thereof
IPC: C07D237/30
Filed: 1957-12-11
Abstract: The invention comprises: (a) phthalazinium compounds of the general formula <FORM:0877623/IV (b)/1> (wherein A represents the anion of an acid and alk an alkylene radical of 2-10 carbon atoms with at least 2 carbon atoms separating the two phthalazinium rings) and their pseudobases and the anhydro-compounds of the latter; (b) the preparation thereof by the processes of the examples, which may be summarized as follows: (i) reacting a compound X-alk-Y (wherein X represents a halogen atom and Y a halogen atom or a hydroxy group) with phthalazine and reacting the resulting monophthalazinium compound, if necessary after replacement of a hydroxy group by a halogen atom, with a further amount of phthalazine; (ii) reacting o-phthalaldehyde with an alkylene-bis-hydrazine H2NHN-alk-NHNH2 or a salt thereof; (iii) converting a bis-phthalazinium salt into its pseudo-base or the anhydride thereof, or vice versa, by the action of alkalies or acids respectively; (c) the preparation of compounds (a) from the intermediate monophthalazinium compound in accordance with (i) above; (d) bacteriostatic compositions containing compounds (a) (see Group VI).  Alkylene-bis-hydrazines of the formula given in (ii) above are prepared by reaction of the corresponding diamines with formaldehyde and hydrocyanic acid, hydrolysis of the products to bis-glycines, nitrosation, ring closure to bis-sydnones and decomposition thereof with acid.ALSO:Pharmaceutical or disinfectant preparations contain bis-phthalazinium salts of the general formula <FORM:0877623/VI/1> (wherein A represents the anion of an acid and alk an alkylene radical of 2-10 carbon atoms with at least 2 carbon atoms separating the two phthalazinium rings) or the corresponding pseudo-bases or the anhydro-compounds of the latter, in admixture or conjunction with a solid or liquid diluent or a vaccine (the formation of anti-bodies by which is intensified by the addition). The pharmaceutical preparations may take the form of tablets, dragees, salves, solutions, suspensions or emulsions, and may be sterilized and/or may contain preserving, stabilizing, melting or emulsifying agents, salts for varying the osmotic pressure, buffers, or other therapeutically valuable substances. Specified salts are halides, sulphates, nitrates, phosphates, acetates, propionates, oxalates, malates, tartrates, citrates, alkylsulphates, alkyl- and aryl-sulphonates, hydroxyethane-sulphonates, benzoates, salicylates, p-amino-salicylates, and naphthalenecarboxylates.
Patent GB-1533630-A (GB)
Title: Sheet detecting method and apparatus
IPC: B65H7/02
Filed: 1976-09-17
Abstract: 1533630 Detecting sheets ultrasonically EASTMAN KODAK CO 17 Sept 1976 [22 Sept 1975] 38694/76 Heading G1G In a method of detecting the presence of sheets of material moving along a predetermined path, ultrasonic energy is transmitted through the path and the phase of the energy on each side of the path is compared so that when the phase difference exceeds a predetermined value a signal is generated. The method enables the passage of multiple sheets of paper, plastics or metal to be detected. An ultrasonic signal is transmitted from a transducer 17 and received by a transducer 18 connected via an amplifier 23 and a zero crossing detector 28 to a phase comparator 30. A signal from an oscillator 20 is also supplied to the comparator via a zero crossing detector 22. If only a single sheet passes between the transducers, the phase shift between the transmitted and received ultrasonic signals is not sufficient for a comparator 34 to provide an output signal. However, if multiple sheets are passing between the transducers, the comparator 34 supplies an alarm signal or switches off the sheet feeding machine.
Patent GB-818937-A (GB)
Title: Improvements in electrolytic recording media
Inventor: RICHARDS ROBERT DOUGHTY
IPC: B41M5/20
Filed: 1956-12-20
Abstract: 818,937. Electrolytic recording paper. MUIRHEAD & CO. Ltd. Aug. 21, 1957 [Dec. 20, 1956], No. 38856/56. Addition to 786,496. Class 96. [Also in Group XL (b)] The electrolytic recording medium for facsimile and phototelegraphic receivers of the parent Specification contains efflorescent sodium sulphate in addition to the polyhydroxyphenolic compound, oxidant and electrolyte. Examples of aqueous impregnating solutions are, in parts by weight, 10 parts sodium sulphate decahydrate, 7.5 parts sodium chlorate, 4.5 parts sodium nitrate, 3.5 parts catechol and minor amounts of citric acid and thiourea; and, where the sodium sulphate is used as both the electrolyte and the agent for promoting drying, 8.6 parts each of sodium sulphate decahydrate and. sodium chlorate, 3.5 parts catechol and minor amounts of citric acid and thiourea.
Patent GB-1433128-A (GB)
Title: Tape
IPC: D04B21/00
Filed: 1972-08-21
Abstract: 1433128 Knitted fabrics COURTAULDS Ltd 20 Aug 1973 [21 Aug 1972] 38877/72 Heading D1K A warp-knitted tape, for reinforcing matrix materials, has a rib formed by a carbon filament tow resting or packing material on a ground fabric and held there by an overlying thread. The tape may comprise two high modulus carbon filament tows each comprising 10000 filaments of 8 to 9 microns diameter. The tape is preferably made on a single bed Rashel machine wherein a first warp bar with six guides at single needle spacing feeds glass filament yarns, a second warp bar with five guides feeds in five glass filament yarns both of these bars being lapped reciprocally the first between adjacent needle spaces and the second across two needles. A third bar lays in two glass rovings side by side straight down the centre of the tape, a fourth bar lays the carbon filament tow to lie against the glass rovings and a fifth bar feeds a glass filament yarn which is shogged to lay a thread over the glass rovings and carbon tow which is held in the ground fabric on either side.
Patent GB-1466302-A (GB)
Title: Skid control system for vehicle brakes
IPC: B60T8/72
Filed: 1974-08-16
Abstract: 1466302 Antiskid braking systems KELSEYHAYES CO 16 Aug 1974 [4 Sept 1973] 39378/76 Divided out of 1466301 Heading F2F An antiskid braking system comprises a sensor for providing an output signal representative of wheel speed, a skid detector 18 responsive to said output signal for providing an output signal representative of a detected skid condition, a skid recovery detector 20 also responsive to the wheel speed signal for providing an output signal representative of recovery from skid condition, timing means including a charge storage device in the form of a capacitor 24, a circuit 38 responsive to the skid detector output for charging the capacitor and means responsive to the recovery detector output for discharging the capacitor and providing an output signal in accordance with the level of charge of the capacitor, the braking pressure being relieved in response to the skid detector output and being maintained relieved in response to the timing means output signal and being re-applied in response to the skid recovery output signal regardless of the timer output signal. The skid detector output signal operates a brake pressure modulator 16 through an output driver circuit 28 and under certain severe skid conditions the holding circuit 22 which includes the capacitor 24 maintains the driver output signal but if the wheel spins up at a predetermined rate the recovery detector 20 provides an output signal taking precedence of that of circuit 22 to reapply the brakes. A skid detector inhibit circuit 30 prevents the detector 18 from providing an output signal during the existence of a recovery output signal, a saturation limiting feedback circuit 32 adjusts the response of the skid detector when the wheel deceleration exceeds an upper deceleration threshold and a low speed detector 34 disables that circuit when the wheel speed is below a predetermined threshold, control of the various circuits being achieved by means of AND gates 46, 52, 60, NOT gate 46 and OR gates 44, 48, 54, 56.
Patent GB-1188725-A (GB)
Title: Method of Manufacturing Variable Capacitance Diodes
IPC: H01L21/00
Filed: 1967-08-29
Abstract: 1,188,725. Semi-conductor devices. FUJITSU Ltd. 29 Aug., 1967 [29 Aug., 1966], No. 39553/67. Heading H1K. [Also in Division C7] An alloy material comprising 0À01-10%, preferably 1%, by weight of Ga in Bi is alloy diffused into N-type Ge during the manufacture of a voltage-variable capacitance diode having a very sharp PN junction. A small quantity, e.g. up to 3%, of a further donor impurity such as Sb or As may be included in the alloy material. Various prior art alloy compositions are referred to.
Patent GB-1277212-A (GB)
Title: A sealing device
Inventor: PETRIE JAMES ALEXANDER
IPC: F01D11/02
Filed: 1968-09-26
Abstract: 1277212 End-face seals ROLLS-ROYCE Ltd 12 Sept 1969 [26 Sept 1968 7 Aug 1969] 45753/68 and 39609/69 Heading F2B [Also in Division F1] A sealing device between a first non-rotating and a second rotating structure comprises, when applied to the turbine of a gas turbine engine, an annular sealing member 200 mounted on turbine stator parts 224, 242 so as to be axially movable to maintain desired sealing clearances with the adjacent turbine rotor 30. Member 200 has annular ribs 208, 210 co-operating with a projecting face 216 on rotor 30 to define an annular chamber which may be subdivided by radial partitions (212, Fig. 3, not shown) into part-annular chambers (206). The latter are supplied with high pressure air through apertures 214. Member 200 also carries an abradable seal ring 226 co-operating with a projection 228 on each rotor blade 32. If the clearance between member 200 and rotor 30 should decrease then the pressure in the chambers (206) increases causing member 200 to move to the left to restore the clearance to its desired value. Sealing between member 200 and stator parts 224, 242 is effected by rings 240, 238. Downstream movement of member 200 is limited by a stop plate 222 and it is located circumferentially by cooling air nozzles 202 extending through and engaging slots 204 in the member. In a modification (Fig. 4, not shown) member 200 includes an axial sealing flange (242) co-operating with a corresponding flange (248) on rotor 30 to provide a restriction when the axial clearance between ribs 208, 210 and face 216 becomes large during engine starting and other transient conditions. Downstream movement of member 200 can be limited in this arrangement by a spring ring (250) secured to a fixed part (252).
Patent GB-1411372-A (GB)
Title: Electrical apparatus for performing digital calculations
IPC: G06F15/80
Filed: 1971-08-24
Abstract: 1411372 Digital data processors ELLIOTT BROS (LONDON) Ltd 25 Oct 1972 [24 Aug 1971] 39622/71 Heading G4A A plurality of identical processors 2, 3, 4, 5 (Fig. 1) receive data from a digital store 1 on channel 7 and transmit data to the store on channel 8, the store and processors being controlled by signals on channel 9 from a control unit 6.  As described, for use in aircraft simulating systems, the store 1 is a fast access store holding 32 binary words of 16 digits, channel 7 consisting of eight groups of 16 conductors so that two words may be fed to the arithmetic unit 11 of each processor 2-5. Channel 8 consists of four groups of 16 conductors to feed back to the store one word from a register 14 in each processor. Other data from the processors may be fed out on channels 16 for example, to be displayed. Control channel 9 has 16 conductors, seven of which are used for providing address information for read out and read in of store 1, five of which are connected to the arithmetic units 11 and each processor being connected to one of the remaining four. A standby processor unit may be provided to replace the faulty unit. The data fed to the processing units may for example represent vectors relative to a framework fixed relative to the aircraft, the arithmetic unit transforming them into vectors relative to a framework parallel to fixed directions.
Patent GB-996058-A (GB)
Title: Process for the manufacture of bright-drying polish emulsions with ionic emulsifiers
IPC: C09G1/08
Filed: 1961-11-06
Abstract: Bright drying wax polish emulsions are prepared by emulsifying in an alkaline aqueous medium (a) an ester wax having an acid value (A.V.) of at most 50 and containing such a number of ester and acid groups that the ratio of the saponification value (S.V.) to A.V. is not more than 12 : 1, and is preferably not less than 1 : 4, and (b) an ester wax having an A.V. of 70-100, a S.V. of 110-220 (high S.Vs. corresponding to low A.Vs.) and a penetration number below 2. Suitable substances for rendering the aqueous medium alkaline are amines such as morpholine, mono-, di- or tri-ethanolamine, aminomethylpropanol, diethylethanolamine, ethylamine and 3-methoxypropylamine, and alkalis such as borax, potassium carbonate and sodium or potassium hydroxide.  Waxes (a) are suitably oxidized polyethylene waxes (A.V 10-30), oxidized microcrystalline waxes (A.V. 0-36), ester waxes based on montan wax (A.V. 20-35), and modification and oxidation products of such montan wax derivatives (A.V. 6-20). Waxes (b) are preferably those having a molecular weight or 900-1400, an A.V. of 80-96, an esterification value of 40-85, M.P. 80-83  DEG C., solidification temperature 75-78  DEG C. and a specific gravity of 1-1,03 at 20  DEG C. and are suitably oxidatively bleached montan waxes which have been esterified with polyhydric alcohols; long chain Fischer-Tropsch paraffins (softening points above 95  DEG C.), oxidatively bleached mixtures of montan wax and oxidized long chain paraffins, and esterified oxidized poleythylenes may also be used. In general, the ratio by weight of (b) to (a) in the emulsion is 1 : 0,5 to 1 : 4, and the final total content of waxes in the emulsion is 10-18%.  If desired, up to 30% of (b) may be replaced by fatty acid, and the final dispersion may contain up to 90% of dispersions of such additives as ammoniacal shellac, modified colophony-maleic acid resin, and homo- and co-polymers of styrene or acrylic acid and esters thereof; balsam resin may also be included to assist emulsification.  The emulsions may be made by melting together waxes (a) and (b) at 95-105  DEG C. in the presence or not of an amine as desired, and adding thereto a boiling aqueous alkaline solution.
Patent GB-1482120-A (GB)
Title: Self-extinguishing polystyrene resin composition
IPC: C08K5/49
Filed: 1974-09-13
Abstract: 1482120 Self-extinguishing styrene and styrene derivative polymer compositions DAICEL Ltd 13 Sept 1974 [14 Sept 1973] 39944/74 Heading C3P A self-extinguishing resin composition comprises (1) a homo- or copolymer of styrene or a derivative thereof; and (2) a flame-retarding agent consisting of (a) tricresyl phosphate, and/or triphenyl phosphate, and (b) a carbonate oligomer of 2,2-(-4,4<SP>1</SP>-dihydroxy-3,3<SP>1</SP>,5,5<SP>1</SP>-tetrabromodiphenyl)propane having an average degree of polymerization (P) of 2-10 and being terminated at the ends of the molecule with groups derived from a monofunctional phenol; the molar ratio of (a) to (b) being from 8(P) : 2 to 1(P) : 9, the composition containing at least 3 wt. per cent of a portion in which the molar ratio of (a) to (b) is 1(P) : 1. The oligomers (b) may be represented by the formula in which R is H or C 1-6  alkyl, x is an integer from 1 to 5 and n is an integer from 2 to 10. The total amount of flame retardant should preferably not exceed 25 wt. per cent, based on the total composition weight. In the examples the polymers treated are A.B.S., polystyrene, high impact polystyrene, and acrylonitrile/ styrene copolymer. The component (a) may be incorporated during the copolymerization of acrylonitrile and styrene, and the oligomer is added afterwards.
Patent GB-841916-A (GB)
Title: Surface grinding machine
IPC: B24B27/00
Filed: 1957-12-24
Abstract: 841,916. Grinding. BANKO, G. Dec. 24, 1957, No. 40021/57. Class 60. An attachment to a surface grinding machine for grinding a compound angle on a workpiece 34 comprises a sub-table 49 slidably mounted on the under side of a stationary table 15 which can be angularly adjusted about the axis of the surface grinder spindle 29 and about an axis perpendicular to the axis of the spindle, a grinding wheel 66, mounted together with a worm 64 and pulley 65 on an auxiliary spindle 62 journalled on the sub-table and connected by a belt 48 to the surface grinder spindle, and means for reciprocating the sub-table on the table 15 consisting of a connecting rod 55 pivotally connected to the stationary table and to a crank arm 53 carried by a shaft 57 journalled in the subtable and rotated by a worm-gear 59 engaging the worm on the auxiliary spindle. The table 15 is carried on a bracket 11 provided with a collar 12 which is rotatably-adjustable on the housing 67 of the spindle 29 and can be clamped in position by a bolt 14, the angular position of the table being determined by a scale 13 and index mark 35 on the column 31 of the machine. The table can also be pivotally adjusted relative to the bracket about a bolt 22, the axis of which is perpendicular to the axis of the spindle 29 ; bolts 18, 19 disposed in arcuate slots 16, 17 in the bracket secure the table in an angular position which can be determined by scales marked on the table cooperating with the sides 68 of the bracket. The sub-table 49 is slidably-mounted in guideways 23, 24 beneath the table 15 and carries, journalled in ball-bearings 63, the auxiliary spindle 62 on which are the grinding wheel 66, pulley 65 and worm 64. The worm cooperates with a worm gear 59 rotatably mounted on the shaft 57 which is disposed perpendicular to the upper face of the sub-table and carries the crank arm 53. A hand-operated nut 60 on the shaft 57 has a conical seating engaging the gear 59 to releasably-clamp the gear against a shoulder 58 on the shaft, the gear being released to stop the reciprocation of the table when it is desired to dress the grinding wheel. The crank arm 53 has a series of holes at different radial distances, any one of which can be engaged by a pin 56 on one end of the connecting rod, the other end of which is pivotally connected by a bolt 26 to the stationary table ; the length of reciprocation of the sub-table can thus be varied according to which of the holes in the crank arm is engaged by the pin 56. The auxiliary spindle is driven by the V-belt 48 from a pulley 36 mounted on the spindle 29 and constructed so that one side 42 of the V-groove is urged by a spring 44 towards the other side but can be axially displaced to permit the belt to engage the groove at different radial distances to accommodate the changes in the distance between the axes of the spindles during reciprocation of the table 49. The workpiece 34 is held by a vice 33 on the machine table 32 which is reciprocatable but held stationary while a compound angle is ground on the workpiece.
Patent GB-400652-A (GB)
Abstract: 400,652. Current, pressure, and power meters. DRYSDALE, C. V., Derek Corner, Kingsway, Hove, Sussex. April 28, 1932, No. 12253. [Class 37.] Electric measuring - instruments of the dynamometer type are made with nearly closed magnetic circuits formed of laminated material of high permeability and low hysteresis loss, e.g. nickel-iron alloys. In one arrangement, Fig. 1, the movable coil 1 is mounted between a fixed cylindrical core 2, made of thin discs of nickel-iron alloy, and the projecting pole pieces 3 of a laminated ring of stampings 4, the fixed coils 5 being carried on the pole pieces 3. Any desired form of scale can be obtained by cutting away the central core or pole faces to vary the radial or axial length of the gaps. A shielded astatic instrument is shown in Figs. 2 and 3, and comprises two flat coils of D-shape, 8, 8, mounted between two thin mica discs on the spindle 7, the coils being connected in series in such a manner that current passes round them in opposite directions. The fixed system consists of two rectangular blocks of nickel-iron strip with grooves to receive the D-shaped fixed coils 10, and with recessed inner faces to accommodate the movable coils. The four fixed coils can be connected in series or parallel or series-parallel to give three different current ranges. Two or more of the instruments can be mounted coaxially with their moving coils on the same spindle to form a double or triple wattmeter for two or three phase circuits or for differential measurements. In a modification, Fig. 5, giving an angular scale deflection of about 270‹, the fixed coils 10 are eccentric with respect to the axis of the spindle 7, and the moving element consists of a single flat coil 13 of sector shape, which is preferably mounted opposite to the pointer 6 to assist in balancing the system. In either of these constructions, the poles may be shaped to give any desired form of scale, as described in Specification 400,651. Either spring control or a compensated variable control such as that described in Specification 400,654 may be used.
Patent GB-1518295-A (GB)
Title: Adaptor for rotary cutting tool holder
IPC: B23B31/02
Filed: 1975-10-01
Abstract: 1518295 Eccentrics R V CLAY 1 Oct 1975 40087/75 Heading F2K [Also in Division B3] An adaptor 20 for a rotary cutting tool holder assembly in which a body 10 has a bore 11 to receive a cutting tool holder 12, comprises two co-operating sleeves 21, 22 each of curvilinear internal and external cross-section and arranged to be located one inside the other and to be rotatable relative to one another, each of the sleeves having circumferentially varying wall thickness, the sleeves being locatable between the body 10 and tool holder 12 so that the axis of rotation of the holder may be offset from the axis of rotation of the body 1 by relatively rotating the two sleeves. The two sleeves 21, 22 are conical, and are rotated relatively by a worm 25 and worm wheel 29 formation extending over an arc of the circumference of one annular portion 27 of the sleeve 22. The outer sleeve 21 has slots to receive the driving lugs 18 of the body, and the inner sleeve 22 has lugs 30 to engage slots in a flange of the tool 12. The eccentric adjustment allows a milling cutter to cut a hole larger than its nominal size by an orbital movement of the cutter.