baber/WOPTO huggingface dataset:
Patent GB-864770-A (GB)
Title: Production of foamed plasticised resins
Inventor: MERRIMAN PETER
IPC: C08J9/12
Filed: 1956-11-22
Abstract: A process for the production of a foamed plasticized resin comprises incorporating an inert gas under pressure into a plastisol and causing at least part of the resin dispersed therein to dissolve in the plasticizer thereof by passing the plastisol through or adjacent to a flame after reducing the pressure thereon but whilst still containing an amount of inert gas sufficient to convert the product to a foam.  The plastisol may be formed from vinyl resins, especially polyvinyl chloride and copolymers of vinyl chloride with, for example, vinylidene chloride or vinyl acetate.  The plastisol is preferably passed through the flame of a flame gun, suitably one which has three concentric nozzles, the intermediate nozzle producing a flame (e.g. of oxygen and coal gas), the outer nozzle being fed by compressed air and the centre nozzle being fed by plastisol containing the inert gas.  The foam produced can be matured by inward conduction or internal generation of heat.  In the example there is used a plastisol paste of polyvinyl chloride, tricresyl phosphate, dioctyl phthalate and dibutyl tin laurate and the foam first produced is matured on a conveyer belt passing between electrodes to which a high frequency potential is applied.ALSO:A process for the production of a foamed plasticised resin comprises incorporating an inert gas under pressure into a plastisol and causing at least part of the resin dispersed therein to dissolve in the plasticiser thereof by passing the plastisol through or adjacent to a flame after reducing the pressure thereon but whilst still containing an amount of inert gas sufficient to convert the product to a foam.  The plastisol may be formed from vinyl resins, especially polyvinyl chloride and copolymers of vinyl chloride with, for example, vinylidene chloride or vinyl acetate.  The plastisol is preferably passed through the flame of a flame gun.  The foam produced can be matured by inward conduction or internal generation of heat.  In the example there is used a plastisol paste of polyvinyl chloride, tricresyl phosphate, dioctyl phthalate and dibutyl tin laurate, and the foam first produced is matured on a conveyer belt passing between electrodes to which a high frequency potential is applied.
Patent GB-1211823-A (GB)
Title: Cam arrangement for knitting patterned fabrics
IPC: D04B15/82
Filed: 1969-07-16
Abstract: 1,211,823. Knitting - machines. NORTH AMERICAN ROCKWELL CORP. 16 July, 1969 [27 Aug., 1968], No. 35809/69. Heading D1C. A superposed cylinder machine has jacquard selecting mechanism capable of double or a single solution of the needles at each feeding station so that the needles can be selected to perform any one of four functions in the case of a double section being made or either of two functions in the case of a single selection being made. The jacquard mechanism consists of the usual pivoted levers which are operated by levers on being advanced at the dictate of the usual perforated strip so that in the case of a double selection at a position 53 in the cam cylinder the first selection divides the jacks whereby sliders are subsequently raised to a knit level or remain at a welt level. The second selection at position 54 causes the needles at knit level to either remain at this level or to be raised to a transfer level whilst the needles at the welt level may be selected to tuck level or remain at the welt level. A gate cam 75 returns the jacks of the transferred needles to an upper level ready for selection to the knit or transfer level at the vent station. If only a single selection is made then the selection is made at the position 53 whereby after selection by the jacquard mechanism cams 61 65 are inserted or withdrawn and the gate cam 75 is lowered so that the needles are caused to follow either the knit or transfer path or alternatively follow the knit or welt path.
Patent GB-874805-A (GB)
Title: Method for blending resinous polymers
IPC: C08F279/02
Filed: 1958-11-10
Abstract: Thermoplastic resinous compositions are prepared by continuously blending a solution of a homopolymer, or a copolymer with a major proportion, of a monovinyl compound of formula: <FORM:0874805/IV (a)/1> where X is an alkyl radical with 1-4 carbon atoms and n is 0, 1 or 2, with a solution or dispersion of a natural rubber or a rubbery polymer or copolymer, and devolatilizing and extruding and thereby blending the mixture at between 110 DEG -245 DEG C. at an absolute pressure of 5-200 millitres of mercury for a period less than about 5 minutes.  Styrene, o-, m-, and p-methyl styrenes, dimethyl styrene, ethylvinyl and diethylvinyl benzenes and copolymers with one or more of acrylonitrile, methacrylonitrile, a -methyl styrene, methyl isopropenyl ketone, ethyl acrylate and methyl methacrylate are examples of the hard resinous polymer and styrene-butadiene, butadiene-acylonitrile, neoprene, butyl, silicone, polyacrylate, pyridine-butadiene and chlorosulphonated polyethylene rubbers and natural rubber of the rubbery elastomer. The solvent may be toluene or xylene or the monomer from which the major proportion of the hard resinous component is derived, and the solution may be prepared by incomplete polymerization.  The preferred devolatilizer-extruder employs two vacuum sections, followed by a section at atmospheric pressure in which modifiers, plasticizers, lubricants, and colourants such as stearic acid, zinc stearate, n-butyl stearate dibutyl phthalate, dioctyldiphenyl ether, mineral and vegetable oils, natural and synthetic hydrocarbons, and liquid polymers of unsaturated alkenyl aromatic hydrocarbons are incorporated.
Patent GB-377091-A (GB)
Title: Apparatus for determining the weight of vehicles and for testing braking devices
IPC: G01L5/28
Filed: 1931-12-31
Abstract: 377,091. Weighing- apparatus. SOC. DES PROCEDES FIT, 62, Rue d'Echirolles, Grenoble, Isere, France. Dec. 31, 1931, No. 36119. Convention date, Jan. 31. [Class 143.] An apparatus for determining the axle load of vehicles and for testing the effectiveness of braking devices comprises a worm 4 rotated by a shaft 11 and meshing with rollers 6 supporting a wheel 21 of the vehicle, the axial thrust of the worm being taken by a piston.15 which causes the liquid in a cylinder 16' to actuate a pressure gauge 18. A ball 13 is inserted between.the worm and piston. When the wheel is unbraked, the gauge indicates the load on the wheel. If the wheel is braked the reading of the gauge is increased in proportion to the braking resistance.
Patent GB-1248157-A (GB)
Title: Metallic vapor arc-lamp
Inventor: HANNEMAN RODNEY ELTON
IPC: H01J61/18
Filed: 1969-07-17
Abstract: 1,248,157. Metal-vapour discharge lamps. GENERAL ELECTRIC CO. 17 July, 1969 [17 July, 1968], No. 36137/69. Heading H1D. An arc discharge lamp giving a peak intensity in the region 5050-5500 Angstrom has a ceramic (e.g. poly-crystalline alumina) envelope and a filling, in addition to a starter gas, of sodium with at least two of the elements mercury, cadmium and thallium, the filling being generated from a charge containing all the filling elements, and a portion of each element remaining unvaporized. The partial pressures of each element in atmospheres at the operating temperature range of 650-1000 C. must lie within the limits, Na 10<SP>-3</SP>-0À6, Hg 0-3, T1 0-10<SP>-2</SP>, Cd 0-1À5 with the further conditions (a) Hg + Cd is 0À1-4; (b) if T1 < 10<SP>-4</SP>, Cd > 0À1; (c) if Cd < 0À1, Tl > 10-<SP>4</SP>. The starting gas is preferably Xe at 5-100 (e.g. 20) torr. but H, Ne, A, Kr may also be used. Many specific examples are given of the quaternary system (the preferred system being Na 6 x 10<SP>-3</SP>, Tl 2À2 x 10<SP>-4</SP>, Cd 0.23, Hg 0.12) and of the ternary systems Na-Tl-Hg (preferred pressures 0.01, 0.0022, 0À3) and Na-Cd-Hg (preferred pressures 0.04, 0.14, 0.10) and details are given of the charge compositions necessary to give the desired partial pressures in view of the interaction between these pressures. The lamp described has a ceramic inner envelope 12 supported in a vitreous outer envelope 2 by a framework of leads 25, 10, 30, the outer envelope containing getters 33 and an additional oxygen getter 44. Additional components of the filling may include Mg, Ba, Sr, Cu, Ag, Sc, La, Ce, Pr, Sm.
Patent GB-1350446-A (GB)
Title: Fastener for releasably securing a shaft to a co-operating member
IPC: G05G1/12
Filed: 1971-08-02
Abstract: 1350446 Fasteners TRW Inc 2 Aug 1971 [21 Aug 1970] 36154/71 Heading E2B [Also in Division F2]  A fastener 22 for releasably securing a shaft 4 to a co-operating member such as a knob 2 having a cavity and a plurality of slots 14 extending along side the cavity in open communication with the cavity, comprises an open ended shaft-receiving and retaining housing 24 adapted to be seated in the cavity in the knob, the open end of the housing being adapted, in use, to receive the shaft and the housing having a leaf spring 30 defining a constriction therein spaced from the open end. The leaf spring is adapted to be placed in tensioned retaining engagement with a surface area of the shaft, upon insertion of the shaft into the housing and the latter has a plurality of wings 40 joined to and extending laterally outwardly thereof and spaced from the open end of the housing, which wings are adapted to seat in the slots 14 when the housing is seated in the cavity 12; the wings carry barblike means 46 adapted to bitingly grip the surfaces defining the slots to secure the fastener to the knob.
Patent GB-894006-A (GB)
Title: Improvements in and relating to sensing apparatus for reading statistical record cards
Filed: 1960-10-21
Abstract: 894,006. Sensing apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 21, 1960 [Oct. 30, 1959], No. 36169/60. Class 106 (1). Sensing apparatus for reading statistical data consists of a rotatable cylindrical drum inside which a record card is carried in an arcuate curve between a fixed source and a fixed light-sensing device. A record card 30, Fig. 3, is inserted in a transparent drum 20 which is then locked on to a shaft 10 rotatable in a base 11. A light source 31 situated outside the drum, consists of a series of pigtail-type lamps, one for each card column index position, and as the drum is rotated perforations in the card allow light to pass through slots 38, 46 and activate corresponding light-sensitive devices 50 (e.g. solar cells of the P.N. type) embedded in cavities 47 in a strip of insulating material 45 of the sensing device 32. A cable (not shown) carries electrical connections from the cells 50 to jacks 52, and, if required, out of the drum through the apertures 53.
Patent GB-1129257-A (GB)
Title: Magnetic tape recorder drive systems
IPC: G11B23/50
Filed: 1966-08-12
Abstract: 1,129,257. Tape drive system. COMPAGNIE DES COMPTEURS. 12 Aug., 1966 [19 Aug., 1965], No. 36191/66. Heading G5B. A magnetic tape drive system comprises a pair of tape reels 1, 2, a pair of dancer arm arrangements 12, 13 for controlling the reel drive motors, a pair of vacuum operated tape reservoirs 10, 11, a pair of oppositely rotating capstans 6, 7, a pair of pressure rollers 8, 9 which can be selectively actuated by electromagnetic means (not shown) to move the tape into engagement with one or other capstan and a pair of suction members 4, 5 which in addition to cleaning the tape assist in obtaining good contact between the tape and the magnetic heads 15. The arrangement is symmetrical about the heads apart from an electromagnetically operated brake 14 which is associated with the suction means 4. Fig. 2 (not shown) illustrates the design of the suction means 4 and 5, and Fig. 3 (not shown) the design of the vacuum reservoirs 10 and 11.
Patent GB-1014647-A (GB)
Title: Improvements in or relating to time base circuit arrangements
Inventor: LOMBAL GERARD
IPC: H03K4/12
Filed: 1962-09-24
Abstract: 1,014,647. Sawtooth generating circuits. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 24, 1962 [Sept. 25, 1961], No. 36254/62. Heading H3P. A time-base circuit comprises a bi-stable circuit EJ capable of being set into a first state by a pulse at terminal Ed, the output of the bistable circuit being inverted at AI and used to control a circuit which generates a linear sawtooth voltage at the cathode of valve T 4 . When the sawtooth voltage reaches a predetermined amplitude (as adjusted by variable resistor R 2 ) a monostable multivibrator MV is triggered and resets the bi-stable circuit EJ to its original state. Diodes D 1  . . . D 4  are provided to ensure that the bistable circuit EJ is responsive only to negative pulses. Valve AI is preferably coupled to valve T 3  via a pair of double triodes T 1 , T 2  connected in series. Valve T 3  is normally conductive maintaining capacitor C discharged until the bi-stable circuit EJ is triggered, when T 3  becomes non- conductive allowing capacitor C to charge via variable resistor R. The waveform is linearized in known manner by feedback from the cathode follower T 4  to the higher potential end of the charging resistor R.
Patent GB-1420275-A (GB)
Title: Hydrofoil ship
IPC: B63B1/26
Filed: 1973-07-31
Abstract: 1420275 Ship dock securing for unloading A JONES Jnr 31 July 1973 [10 Aug 1972] 36380/73 Heading B8E [Also in Division B7] A notched pier receives the bow of a hydrofoil container ship (see Division B7) and a floating platform 101 having extensible legs 103 which engage the dock bottom, receives the stern of the ship to securely berth it. Containers are loaded/unloaded by wheeled cargo handling vehicles which drive on to and off the ship over the bow via a pair of ramps 104.
Patent GB-898083-A (GB)
Title: Improvements in or relating to the production of seam-like connections between flat fabric members by means of thermoplastic materials
Inventor: KELLER SIEGFRIED
IPC: B29C65/62
Filed: 1958-11-18
Abstract: 898,083. Sewing, sewing-machines. MESSERSCHMITT, A. G. Nov. 18, 1958, No. 36427/61. Divided out of 898,082. Class 112 [Also in Group VIII] A process for producing a pseudo-doubleback-stitch seam for joining fabrics in which an upper and a lower thread are connected together by a thermoplastic material in successive spaced points, the distance between which depends on the length of one step of a feeder, is characterized in that the connection between the upper and the lower thread is effected outside the layers of fabric. In the embodiment shown the needle 1 moves upwards and downwards as in a conventional sewing-machine and the upper thread 3 is threaded through the eye 2 of needle 1. The layers 4, 5 of fabric are moved by a feeder as in a sewing-machine. In operation the needle 1 penetrates the layers 4, 5 for the thread 3 to form a loop 6. A piston 9 in the form of a nozzle executes an oblique reciprocating motion through the needle plate. The nozzle 12 contains a rapidly hardening bonding agent 13 the front portion of which is heated to its melting point so that a drop 15 is deposited on the connection between the upper thread 3 and the lower thread 8. The needle is withdrawn upwardly drawing the thread connection into the layers of fabric and the operation is repeated so seaming the two layers of fabric together. Specification 898,084 also is referred to.
Patent GB-325045-A (GB)
Title: An improved process for the preservation of eggs
IPC: A23B5/025
Filed: 1928-12-11
Abstract: 325,045. Milroy, A., and Egg Patents, Ltd. Dec. 11, 1928. Preserving liquid eggs. - Eggs are preserved, after removal from the shell, by separating the egg whites from the yolks, neutralizing the whites, e.g. by addition of phosphoric or other suitable acid, or stabilizing the white, by separating the dispensable proteins therefrom, e.g. by making definitely acid, mixing the treated whites with the yolks or any desired proportion thereof and a suitable proportion of glycerine, and evaporating the mixture to a pasty consistency or to desiccation or substantial desiccation. The amount of glycerine used may be 2¢-10 per cent, from 5-7¢ per cent being usually satisfactory. In modified forms, the glycerine may be added to the white before stabilization or neutralization and the evaporation may then be carried out, and any desired proportion of preserved yolk may afterwards be added. Whole eggs or mixtures of white and yolk may be treated by first ascertaining, by taking a sample, the amount of acid necessary for neutralization and then adding the ascertained proportion of acid to the mixture without separating the whites. Specifications 261,194 and 296,462 are referred to.
Patent GB-1108138-A (GB)
Title: Improvements relating to textile drafting apparatus
Inventor: MACKIE JOHN KAY PRINGLE
IPC: D01H5/26
Filed: 1964-09-07
Abstract: 1,108,138. Drafting-apparatus. JAMES S MACKIE & SONS Ltd. 17 Aug., 1965 [7 Sept., 1964; 28 Jan., 1965], Nos. 36587/64 and 3826/ 65. Heading D1D. In double apron drafting apparatus, one. of the aprons is supported over at least part of its operative run by a grooved support, and a yieldable member is fitted to engage the rear surface of this apron as it passes over the grooved support, the member being formed with a localized projecting part which bears against the apron to produce a small area of increased pressure on the fibres being drafted. In Fig. 1, the support is a grooved plate 13 carried by an arm 14 mounted on the axis of the apron roller 15 and loaded by springs 20, 21. An interchangeable leaf spring with a bowed part projecting against the apron is. hooked over the rear end of the plate, In Fig. 2, the apron roller 15 is grooved to provide the grooved support, and a leaf spring, attached to the plate, has a bowed part 33 projecting into the groove. In Figs. 3 and 4, not shown, springs are provided for both plate and roller; in Fig. 3, that for the plate is adjustably mounted and in Fig., 4, its bowed part projects through a slot in the plate.
Patent GB-1144815-A (GB)
Title: A method of, and apparatus for, reversing and/or controlling the contrast of an image
IPC: G03B27/72
Filed: 1966-08-16
Abstract: 1,144,815. Photographic projection printing. FUJI SHASHIN FILM K. K. Aug. 16, 1966 [Aug. 20, 1965], No. 36638/66. Headings G2A and G2C. A method and apparatus for the reversal of, or controlling the contrast before or after reversal of, a transparent original in which one or each side of the original is illuminated by a light beam so as to give rise to a reflected image and/or a transmitted image, the ratio of the intensities of which images (when both are present) being controlled prior to projecting the combined images on to photo-sensitive material or on to a screen. The ratio of the intensities may be such that a reversal of the original is projected. As shown, the original 1 is illuminated by a lamp 4 to give a transmission image, and by a lamp 6 to give a reflected image, the intensities of which images can be varied by light modulators 9, 10 comprising a set of optical wedges or two sheets of polarizers. Alternatively, the intensities of the lamps may be varied, in which case a filter for compensation of optical balance is provided. The combined image is projected on to a screen 3. In another embodiment Fig. 3 (not shown) a single lamp and an arrangement of semi and fully reflecting mirrors are used to provide both beams.
Patent GB-619568-A (GB)
Title: Improvements in and relating to glass-to-metal seals
IPC: H01J19/02
Filed: 1946-12-12
Abstract: 619,568. Glass-to-metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 12, 1946, No. 36756. Convention date, April 20, 1945. [Class 36] [Also in Group XL (a)] A sealed envelope, more particularly for an electronic device, includes a glass portion and a metal portion, consisting of columbium, which forms a glass-to-metal seal with the glass. The ends of an envelope 13, Fig. 2, are sealed as by pinch seals 19. The filament 17 is mounted on columbium metal conductors 21 which extend through the pinch seals 19 and form seals with the glass. Alternatively, the envelope 13, Fig. 3, may have a re-entrant portion 29 terminating in an annular rim 31. The electrode 15 comprises a thimble 33 of columbium having a skirt portion 35, the thin edge 37 of which forms an hermetic seal with the rim 31.
Patent GB-1561198-A (GB)
Title: Methods for the control insects
IPC: A01N57/22
Filed: 1977-09-02
Abstract: To control insects and to sterilise eggs, insects and acarids, the insects, eggs or substrates infested with these pests are treated with an insecticidally or ovicidally effective amount of a phosphorus compound of the formula <IMAGE>  In these formulae,   R represents an alkyl or haloalkyl group having 1 to 12 carbon atoms, an alkenyl or alkynyl group having 2 to 12 carbon atoms or a cycloalkyl, aryl, alkaryl or aralkyl group,   X represents fluorine, chlorine, bromine and iodine, and   Z represents oxygen or sulphur.   Compositions for carrying out the method contain an insecticidally or ovicidally effective amount of this phosphorus compound and an inert solid or liquid carrier.
Patent GB-1284721-A (GB)
Title: A process for the production of a tea product
IPC: A23F3/18
Filed: 1968-08-01
Abstract: 1284721 Tea extracts FINLIP PRODUCTS Ltd W LINDSAY V N BAHAL and W B EYTON 24 July 1969 [1 Aug 1968] 36828/68 Heading A2B A process of preparing a tea product comprises extracting tea leaves to give an extract (a) of tea solids soluble in cold (ie <35‹C) water) further extracting the tea leaves with hot water or alkaline aqueous solution to give an extract (b), oxidising extract (b) and combining the extracts. The leaves may have been fermented, withered, dried or treated with an alkaline solution in the presence of oxygen or air or an oxidative enzyme preparation prior to extraction. Extract (a) may be produced by one ore more pressings and/or one or more cold water extractions. Extract (b) may be produced by a plurality of extracting steps. Extract (b) is preferably oxidised in the presence of molecular oxygen (oxygen or air) at 50-130‹C at an alkaline pH which pH may be produced by the addition of ammonium, sodium or potassium hydroxide, carbonate or bicarbonate to the extract. The pH of oxidised extract may be reduced e.g. by the use of an ion-exchange resin, electrodialysis or by the addition of acetic acid prior to mixing with extract (a). Before or after combining the extracts (a) and (b) they may be subjected to one or more of the following steps: (1) a clarification step comprising cooling and centrifuging; (2) a dehazing step comprising adding a water-soluble salt and separating the formed precipitate; (3) a concentration step comprising e.g. freeze concentrating or reverse osmosis, and (4) a drying step comprising freeze or spray drying. The volatile essential oils which may be stripped during concentrating may be condensed and returned to the extract. Milk, sugar, lemon, caffeine and maltodextrins may be added to the tea product.