baber/WOPTO huggingface dataset:
Patent GB-867235-A (GB)
Title: Improvements in or relating to the manufacture of polymeric materials
Inventor: BELLIS ARTHUR JOB DANIELS
IPC: C08J9/00
Filed: 1957-11-20
Abstract: Pigmented cellular polyurethanes are obtained by adding a paste of pigment in an organic liquid to the reactants.  Specified liquids are tri (o-tolyl)-; tricresyl-; and tri (b -chloroethyl)-phosphate; dioctyl phthalate, and paraffin oil; whilst if a volatile liquid is used e.g. methylene chloride a lower density foam will result through volatilization.  Lists of suitable pigments, catalysts, emulsifiers, polyethers, polyesters, and polyisocyanates are given.  Fillers and flame proofers are optional.  Specifications 553,733, 733,624, 769,680, 769,682, 790,420, 839,183, 845,206 and 867,234 are referred to.ALSO:Pigmented cellular polyurethanes are obtained by adding a paste of pigment in an organic liquid to the reactants.  The liquid may be invisible or not with the polyether or polyester, but preferably not reactive towards isocyanates.  Specified liquids are tri (o-tolyl)-; tricresyl-; and tri (b  chloro ethyl)- phosphate; dioctyl phthalate and paraffin oil; whilst if a volatile liquid e.g. methylene chloride, is used a lower density foam will result through volatilization.  Lists of suitable pigments, catalysts, emulsifiers, polyethers, polyesters and polyisocyanates are given.  Fillers and flame proofers are optional.  Specifications 553,733, 733,624, 769,680, 769,682, 790,420, 839,183, 845,206 and 867,234 are referred to.
Patent GB-933857-A (GB)
Title: Improvements relating to stereophonic sound transmission systems
Inventor: TRENDELL EDWARD GEORGE
IPC: H04H20/88
Filed: 1958-11-11
Abstract: 933,857. Diplex radio signalling. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 11, 1959 [Nov. 11, 1958], No. 36132/58. Drawings to Specification. Class 40 (5). In a stereophonic sound broadcast receiver for use in a system of the type described in Specification 871,992, in which a carrier wave is amplitude-modulated by an audio signal and angle modulated by a narrow band control signal representing the direction or position of the source of sound, the local oscillator in the frequency changing stage producing the intermediate frequency signal is crystal controlled.
Patent GB-508317-A (GB)
Title: Improvements in or relating to the control of alternating current torque motors in electric control systems
IPC: G05B11/01
Filed: 1937-12-30
Abstract: 508,317. Automatic regulation; converting. BRITISH THOMSON-HOUSTON CO., Ltd., and HAIGH, F. A. Dec. 30, 1937, No. 36137. [Classes 38 (ii) and 38 (iv)] The deflection of an alternating current torque motor, coupled to a phase-shifter controlling a discharge device or to a rheostat controlling a motor generator set, is controlled by a saturable reactor, the saturating winding of which carries a current proportional to the load current of the discharge device or motor generator, in such a manner that a curve of load cur. rent as abscissa and deflection as ordinate is convex downwards. In the Figure a phase shifter 1 controlling the output of an electric discharge device is coupled either directly or through a simple reduction gear to an alternating current torque motor 2 the deflection of which is resisted by a control spring 6. The stator of the torque motor is supplied through a saturable reactor 3 from constant voltage alternating current mains 4, and a saturating winding 5 on the reactor carries a current proportional to the load current of the discharge device. The torque motor may be a commutator motor or an induction motor. If it is an induction motor having a wound rotor the saturable reactor may be inserted in the stator or rotor circuit while, in addition, a variable resistance may be included in the rotor circuit for torque adjustment. In the case of a rectifier an existing reactor controlling the speed of a cooling fan may simultaneously control the torque motor.
Patent GB-497887-A (GB)
Title: Improvements relating to the dehairing of hog carcasses
IPC: A22B5/08
Filed: 1937-12-30
Abstract: 497,887. Dehairing carcases. ALLBRIGHT-NELL CO. Dec. 30, 1937, No. 36164. Convention date, May 6. [Class 28 (ii)] Hog carcasses are imperfectly dehaired by means of the usual scalding tank a and dehairing machine b, and are then laid upon a table c where a gambrel stick is secured across the hind feet of the carcass, the stick being placed in a hook on a trolley d on a track e. While the carcass is suspended, a rubber band is placed around the snout, and the nostrils are plugged with cotton to prevent the resinous or pitchy liquid h in which the carcass is subsequently dipped, from entering. A conveyer f is provided with releasable hooks f<1> which engage the trolleys d and entrain them. The carcass is lowered into the liquid h in the tank i, so that the hind feet only are above the surface. The carcass is then lifted out of the liquid and transferred to a track k. The temperature of the liquid h, which may contain 7¢- 10 per cent of soya bean oil or an oil having similar characteristics, is maintained by coils l at 300-305‹ F., which temperature is sufficient to cause the moisture remaining on the carcass from the machine treatment, to be turned into steam, this effecting a sterilization of the skin and a loosening of the hairs remaining after the machine treatment. Approximately one minute after the immersion, the pitchy coating is sufficiently cool to allow an operator, standing on a platform l<1>, to handle it with wet gloves. The coating is cut along the inner sides of the legs and is then pulled downwards, the remaining hairs being thus removed. The drip from the carcasses and the peeled-off coating is received in a trough m which discharges, through spouts m<1>, into a tank o provided with coils to maintain the temperature at about 325-330‹ F. The hot liquid is passed by pumps p from the tank o to the tank i which has an overflow leading back to the tank o. Screens o<2> are provided in the tank o, and floating matter is removed by raking it across the surface into a heated trough at the side of the tank o.
Patent GB-1110916-A (GB)
Title: Automatic voltage compensator for three phase
Inventor: SCIAKY ALBERT MARIO
IPC: G05F1/42
Filed: 1966-08-12
Abstract: 1,110,916. Supply arrangements for welding systems. WELDING RESEARCH Inc. 12 Aug., 1966, No. 36205/66. Heading H2H. [Also in Division G3] In a welding system the supply of welding current is automatically regulated, in a manner to compensate for variations in the threephase supply voltage, by control of the firing angle of ignitrons connected in the primary circuit of the welding transformer. To effect the desired regulation the three-phase voltages of the A.C. supply are rectified to produce a direct voltage which varies in amplitude as the phase voltages vary; alternating voltages are also derived from each phase of the supply and these voltages are applied to a circuit, including valves connected for push-pull cathode follower operation; the said direct voltage and the outputs from the cathode follower circuit are applied to the grid/cathode circuits of further valves which are also associated with an adjustable voltage reference source, the arrangement being such that the further valves conduct to produce firing pulses when the grid/ cathode voltage exceeds the reference voltage. As the said grid/cathode voltage varies in dependence upon supply voltage variations the firing pulses are phase-shifted in accordance with these variations, whereby the firing angle of the ignitrons is controlled in the desired manner. A suitable control circuit arrangement incorporating dual-triode valves is described with reference to Figs. 2 and 3 (not shown).
Patent GB-970819-A (GB)
Title: Electro-conductive composition
IPC: H05B3/26
Filed: 1962-09-24
Abstract: An electro-conductive glass composition consists essentially of, in percentages by weight, 10 to 50 of a substantially non-conducting glass, 20 to 85 of at least one metal and up to 60 or at least one semi-conductor.  Suggested as preferred among many semi-conductors are silicon carbide and a mixture of SnO2 and Sb2O3.  Silver and nickel are the preferred metals.  Suggested glasses are A: PbO 75; B2O3 11; Al2O3 11; SiO2 3 and B: B2O3 22.5; SiO2 12.5; ZnO 65.0.  A number of examples are given of the mixtures, using glass A, silver and the two suggested semi-conductors. A moistening agent such as a synthetic resin is used and the mixture fired.  It may be used to form heating elements, printed circuits and like elements.
Patent GB-837681-A (GB)
Title: Dispenser for granulated materials such as sugar
IPC: A47G19/34
Filed: 1956-11-28
Abstract: 837,681. Delivering measured quantities of granular materials. JACOB, T. Nov. 27, 1957 [Nov. 28, 1956], No. 36374/56. Class 106(5) A dispenser for sugar or other granulated material comprises a tube 10 extending through the removable cap 11 of a container 15 to the bottom of the container and having a bevelled end 13 which can be partly masked by a slidable sleeve 14 in order to vary the amount of sugar dispensed each time the container is turned upsidedown. The outer end of the tube is bevelled in the opposite direction to the inner end and may be fitted with a self-closing flap. The cap 11 may be secured to the container by a screw, clamp or bayonet joint connection and the outside of the container may be used for advertising purposes.
Patent GB-1368363-A (GB)
Title: Belt damage and misalignment detector
IPC: B65G43/02
Filed: 1972-08-08
Abstract: 1368363 Indicating damage to and emergency stopping of conveyer belts GOODYEAR TIRE & RUBBER CO 8 Aug 1972 [9 Sept 1971] 36935/72 Heading B8A [Also in Division H4] Means are provided for giving warning of damage to a conveyer belt and for turning off the drive motor to prevent further damage. In one arrangement, Fig. 2, the belt 1 carries loops 25 connected to a pair of oppositely wound coils 26, 27, this arrangement ensuring that the system is not effected by spurious coupling. Coils 26, 27 co-operate with fixed coils 16, 17 respectively, in a detector coupled to a detector circuit including an amplifier 22 and capacitor 24 which stores pulses from the detector 15. A transistor 28 conducts when the charge on capacitor 24 is maintained by pulses from the detector so that relay 29 remains energized. If a loop 25 is broken the charge is not replenished and the relay is released to open switch 30 and stop the drive motor. Circuit details, Fig. 6.-Coils 42, 44 correspond to the coils 16, 17, and form part of an oscillator circuit comprising transistors 46, 47. In the presence of the loop 25 and its associated coil the feedback from transistor 47 to transistor 46 becomes negative and oscillations are stopped so that movement of the belt causes the output of the oscillator to be chopped. This output is supplied to a transistor 54 which supplies negative-going pulses to an R.C. circuit 56. The direct voltage developed across circuit 56 is supplied via diode 61 to a capacitor 60 and each time a negative pulse occurs the diode 61 is reverse-biased and the charge on capacitor 60 forward-biases transistor 58 which via transistor 64 supplies a pulse to charge a capacitor 65. If the belt is functioning normally these pulses are accumulated at 65, and the resulting voltage via transistor 66 is applied to an AND gate 69 receiving another detector input at 70 for simultaneous control of the indicator unit 41. If either input falls to a low level, due to a damaged belt, transistor 79 is cut off followed by transistor 74 so that a green lamp 71 is extinguished, relay 77 is released to stop the motor and transistor 75 will conduct to energize a red lamp 72. A further arrangement is described, Fig. 7 (not shown), for use with multiple detectors in which a green lamp indicates when the system is running normally and a pair of red lamps provide an individual indication for detector pick-ups at two different critical locations along the belt and provide a common indication of a fault in the remainder of the detector pick-ups. A different loop arrangement for the belt in which the two coils are spaced apart along the belt is described, Fig. 8 (not shown). The detector may be arranged to be normally not oscillating and the coils on the belt wound so as to cause the device to oscillate.
Patent GB-836544-A (GB)
Title: Production of benzoate esters
Inventor: HOBBS JOHN JAMES
IPC: C07C69/78
Filed: 1957-11-27
Abstract: m- and p-(b -hydroxy-ethoxy)-benzoic acid esters are prepared by treating a m- or p-hydroxy benzoic acid ester with ethylene oxide. The process preferably takes place using 1.1 mols. of ethylene oxide in the presence of alkaline catalyst such as sodium or potassium hydroxide or alkoxide and an alcohol corresponding to the esterifying group of the ester as solvent at an elevated pressure and at a temperature in the range 130-50 DEG  C.  Examples describe the reaction of ethylene oxide with ethyl m- and p-hydroxybenzoate.
Patent GB-430890-A (GB)
Title: An improved method of producing tubes or rods of a given external diameter
Filed: 1934-12-24
Abstract: 430,890. Planing ebonite &o. MURAD, W. H., 19, Ridings Avenue, Grange Park, London. Dec. 24, 1934, No. 36975. [Class 145 (i)] [See also Group XXII] In a method of producing tubes or rods of insulating material such as tubes of ebonite or of resinified, shellaced or other varnished paper used for making radio inductances, the rough tube d is passed through a plurality of cutting-dies a, each of which cuts off a thin shaving from the external surface of the tube until the desired finished size is reached. The cutting-dies are mounted on supports b associated with centring guide members c which are preferably of the same size as the preceding die. The reduction at each stage does not exceed 0À003", the final reduction being preferably 0À001". In some cases the guides may be omitted and the tube carried on a supporting mandrel during the operation.
Patent GB-1201371-A (GB)
Title: A decade counter unit
Inventor: BARANOFF ALBERT J
IPC: G06M1/276
Filed: 1967-08-11
Abstract: 1,201,371. Counting apparatus. CALIFORNIA ELECTRO - SCIENTIFIC CORP. 11 Aug., 1967 [27 Sept., 1966], No. 37084/67. Heading G4D. Each decade of a counter comprises a numeral wheel 12 and an electromagnet 34 assembled as a unit between plates. The stepping pawl is shaped so that a weak energization of the magnet results in a net zero rotation of the wheel. Each energization of the magnet attracts pallet 36 to rock yoke 42 counter clockwise, whereby the lower of a pair of spring-coupled pawls 18, 20 advances a ratchet wheel integral with the numeral wheel 12 half a step counter clockwise, the lower pawl 20 being cammed upwards towards the end of the stroke by a fixed pin 52. At the same time the end 18A of the upper pawl falls behind the next ratchet tooth so that when the magnet de-energizes the pawl 18 which is cammed by fixed pin 50 pushes the wheel a further half-step. A lower extension 18C of pawl 18 is shaped to act as a detent and also to restore the wheel 12 if a weak pulse affects the magnet. The digits on each wheel are visible through a window 112. Equivalent digits 16 for printing purposes are spaced between the visible digits (Fig. 21, not shown) and are used for printing on paper P when a magnet 160 is energized. The return motion of printing hammers 154 causes a cam 187 to drive rollers 182 to advance the paper. Manual depression of the window 112 against the action of a spring cuts off the printed paper.
Patent GB-1522854-A (GB)
Title: Transparent paper
IPC: D21H21/26
Filed: 1975-09-09
Abstract: 1522854 Transparent paper KANZAKI PAPER MFG CO Ltd and TORAY TNDUSTRIES INC 9 Sept 1975 [9 Sept 1974] 37151/75 Heading D2B A transparent paper has a fibrous matrix which consists, per 100 parts by wt. on a dry basis, of (a) from 94 to 40 parts by wt. of natural pulp and (b) from 6 to 60 parts by wt. of a synthetic pulp having a freeness of from 50 to 600 cc formed of a blended polymer system comprising (i) from 5 to 40% by wt. of a polyvinyl alcohol-acrylonitrile copolymer, the polyvinyl alcohol content of which is from 20 to 80% by wt. and (ii) from 60 to 95% by wt. of an acrylonitrilestyrene copolymer the acrylonitrile content of which is from 5 to 45% by wt. The natural pulp may be wood pulp, bast fibre pulp, or animal fibre pulp. The blended polymer system of the synthetic pulp may include unreacted polyvinyl alcohol and/or an acrylonitrile polymer. The polyvinyl alcohol-acrylonitrile copolymer may be a block or graft copolymer, and monomers in addition to acrylonitrile e.g. vinyl acetate, methyl acrylate, styrene, and vinyl chloride may be used in its preparation. The transparent paper may be made by moistening the fibrous matrix to a moisture content of 5 to 40% and pressing the moistened sheet at a temperature of at least 130‹C. Conventional papermaking additives e.g. a starch e.g. oxidised starch, polyvinyl alcohol, carboxymethyl cellulose, sodium alginate, solutions or emulsions of synthetic resins, transparentising agents, release agents e.g. wax, plasticisers e.g. glycerine, antistatic agents e.g. salt, fillers e.g. talc, and dyestuffs may be added in the manufacture of the paper. The pressing may be carried out using a supercalender, machine calender, rolls, or a hot press.
Patent GB-882445-A (GB)
Title: Improvements in or relating to strain gauges
IPC: G01L5/24
Filed: 1958-11-19
Abstract: 882,445. Measuring electrically. KUTSAY, A. U. Nov. 19, 1958, No. 37171/58. Class 40 (1). A strain gauge comprises a resistance unit which consists of a slender cylindrical core with the gauge wire bonded to the exterior surface, and a bolt, test piece, or other structural element, with a hole, whose axis is at the neutral axis of the element, into which the resistance unit is bonded. The gauge wire is wound on to the core in such a way that its main component of length is parallel with the longitudinal axis of the core, examples are given in Figs. 3 to 8, of which only 4 and 7 are shown. The core may be of metal or plastic with the gauge wire bonded to it by synthetic resin and the resistance unit may be bonded to the, e.g. bolt, as shown in Fig. 1, by synthetic resin, or alternatively if the core is of metal it may be shrunk by inserting it in liquid air and then allowed to expand in the hole in the bolt. To ensure good contact between the resistance unit and the bolt the interior of the hole may be roughened or threaded.
Patent GB-1429987-A (GB)
Title: Formulating with a non-burning chlorinated dry bleach
IPC: C11D7/54
Filed: 1973-08-06
Abstract: 1429987 Detergent bleach composition FMC CORP 6 Aug 1973 [4 Aug 1972] 37177/73 Heading C5D [Also in Divisions A5 and D1] Detergent compositions in powder form, comprising as dry bleach the dihydrate of sodium dichloroisocyanurate or a mixture of such with sodium dichloroisocyanurate having less combined water than the dihydrate but so that the average combined water content of the mixture is over 11%, are formulated by dispensing the dry bleach from a bulk storage zone into a blending zone in which admixture of the components takes place, whereby fire and dust problems are diminished. The compositions may be used in household or commercial dish-washing machines, or as scouring powders. In the example, the dry bleach is mixed with sodium silicate, sodium carbonate, sodium tripolyphosphate, sodium sulphate and an ethoxylated alcohol surfactant to produce a household automatic dishwasher composition.
Patent GB-522972-A (GB)
Title: Means for connecting the parts of stands for firearms
IPC: F41A23/00
Filed: 1938-12-21
Abstract: 522,972. Bayonet-Joint fastenings. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. Dec. 21, 1938, No. 37217. Convention date, Dec. 21, 1937. [Class 44] A bayonet-joint fastening for releasably securing the part 3 of a fire-arm support to the head 1 of a stand comprises a flange 12 with inclined surface on part 3 and a groove in part 1 providing an internal flange 8 with an inner inclined surface conforming with that on part 3. Flanges 8, 12 are interrupted so that the parts may be engaged bayonet fashion. Part 1 is slotted at 10 so that after engagement it can be contracted to grip part 3 by a clamping screw 6. In a modification, Fig. 4, both members 1, 3 have abutting flanges 18, 19 embraced by a separate channel-section clamping ring, the wall 15 of the ring and flange 19 being interrupted for bayonet-like engagement and provided with co-operating inclined surfaces.
Patent GB-449761-A (GB)
Title: Improved windows, doors and the like movable on parallel links
IPC: E05D15/46
Filed: 1934-12-29
Abstract: 449,761. Windows ; trap doors. HOLLER, E., 83, Holeestrasse, Basle, Switzerland. Dec. 29, 1934, No. 37270. Convention date, Dec. 30, 1933. [Class 20 (iii)] Doors, windows, and the like are mounted on parallel links pivoted to the frame or the equivalent and connected by a link at points unequally spaced from the frame so that the door, &c., when first opened takes up an inclined position. As shown in Fig. 1, the connections 11<a>, 13<a> between the fixed frame and the links 3, 3<1>, are of unequal height. The door or sash may be guided by studs engaging slotted guides, Fig. 2, the slots 21, 21<1> being slightly out of parallel and a spring 22 being applied to one stud. The arrangement shown in Fig. 3, comprises one link 28 displaced at the pivot point 30<1> by a slight bend and extra links 26, 29 having a sliding connection with the frame and one being extended to provide a sliding connection with a slotted member 25 in the sash. The Specification as open to inspection under Sect. 91 comprises also a modification in which the mounting links are guided by non-parallel slots concentric with the fixed pivots of the links. This subject-matter does not appear in the Specification as accepted.