baber/WOPTO huggingface dataset:
Patent GB-998296-A (GB)
Title: Improvements in or relating to semicarbazones and the manufacture thereof
IPC: C07C281/10
Filed: 1963-12-23
Abstract: The invention comprises semicarbazones of the formula <FORM:0998296/C2/1> <FORM:0998296/C2/2> where X is chlorine or bromine, n is 1 or 2 and R represents a ureido, 3-phenylureido or 3,3-diphenylureido group.  The compounds are made by condensing an aldehyde of the formula <FORM:0998296/C2/3> <FORM:0998296/C2/4> with a semicarbazide of the formula R-NH2. Examples describe the preparation of the semicarbazo, 4-phenyl-semicarbazone and 4,4-di-phenyl semicarbazone of 1-chloro-3,4-dihydro-2-naphthaldehyde and the 4-phenyl-semicarbazone of 2-chloro-3,4-dihydro-1-naphthaldehyde. Other semi-carbazones of bromo- and chloro-3,4-naphthaldehydes or 6,7-dihydro-SH-benzocycloheptene-carboxaldehydes are specified.
Patent GB-1064476-A (GB)
Title: Transparent paper
IPC: D21H13/08
Filed: 1963-08-29
Abstract: 1,064,476. Artificial filaments. KURASHIKI RAYON KABUSHIKI KAISHA. Aug. 29, 1963 [Sept. 12, 1962], No. 50884/66. Divided out of 1,064,475. Heading B5B. [Also in Division D2] Paper having a high transparency consists of flat regenerated cellulose fibres having a width which is more than 30 Á and more than 5 times the thickness thereof, up to 5% by volume of the fibre being hollow, and the opposing major faces of the fibre being parallel. The formation and composition of the flat fibre and of the paper is similar to that described in Specification 1,064,475.
Patent GB-1394444-A (GB)
Title: Switch circuit for alternating current
IPC: H03K17/795
Filed: 1972-11-06
Abstract: 1394444 Switching circuits for A.C. loads GEHAP GES FUR HANDEL UND PATENTVERWERTUNG mbH & CO KG 6 Nov 1972 [5 Nov 1971] 51016/72 Heading H2H A circuit for switching the power supplied to a load R L  comprises an optically coupled system 2 including a light emitting diode 3 and a phototransistor 4, a zero voltage detecting circuit 17 and a triac 10. The optically coupled system enables a control voltage source applied to terminals 6 to be electrically isolated from the load switching circuit. Both the system 2 and the circuit 17 are formed as integrated circuits, and the load R L , which may be a heating resistor or a lamp, is connected to an A.C. supply. The A.C. supply is connected to the circuit 17 via a resistor 12 and an output terminal 8 supplies trigger pulses at the zero crossings of the alternating voltage to switch on the triac 10. A capacitor 16 enables inductive loads to be switched.
Patent GB-1402279-A (GB)
Title: Fluid signal limiting device
IPC: F15B5/00
Filed: 1972-11-06
Abstract: 1402279 Limiting fluid signals; fluid-pressure servomotor systems JOHNSON SERVICE CO 6 Nov 1972 [18 Nov 1971] 51105/72 Headings G3H and G3P A fluid-signal limiter has an input chamber 8a to which a signal is applied, an output chamber 9a from which an output signal is taken from a passage 11, a diaphragm 7 separating the two chambers and controlling an exhaust flow through an orifice 10 and a passage 18, a supply passage 12 leading through a restriction 12a into the passage 11 and an exhaust passage 14 leading from the passage 12 via an adjustable restrictor 16 by which an upper limit may be set to the output pressure (when the orifice 10 is closed by the diaphragm 7). The passage 18 may have an adjustable restrictor 20 by which a lower limit may be set on the output pressure. Limiters such as this may be used in a system, Fig.3 (not shown), for controlling a variable, such as temperature.
Patent GB-1466383-A (GB)
Title: Shackles
IPC: F16G15/04
Filed: 1974-10-30
Abstract: 1466383 Shackles R E BROOKES 30 Oct 1974 [5 Nov 1973] 51187/73 Heading F2Q A shackle comprises an integral moulding of resilient synthetic plastics material having two end portions each with closure means which are interengageable to form a closed loop, said closure means being at one such end a tongue and at the other a transverse groove engageable with the tongue, the tongue and groove being engaged and disengaged by distorting the moulding against the resilience of the plastics material so that the tongue is introduced into or withdrawn from an open end of the groove. In an embodiment shown in Figs. 1 and 2 both the end portions 16 and 18 are each provided with a tongue and a groove so that, when the end portions are displaced so as to allow them to be connected together, the tongue 20 of the portion 16 is received by the groove 26 of the portion 18 and the tongue 24 of the portion 18 is received by the groove 22 of the portion 16. The moulding may also include a ring-portion 10. In another embodiment a tongue 40, Fig. 3, is retained in a groove 42 by a member 44 which is pivotally mounted to a moulding by a pin 46, is provided with inwardly-directed protrusions 48 which, when end portions 36, 38 are connected together, are received in a respective recess 50. In a modification the tongue 40 is retained in the groove 42 by a member 52, Figs. 5 and 6, the latter having fingers 56 which are received in respective recesses 60.
Patent GB-1094988-A (GB)
Title: Magnetically actuated switch
Inventor: GOULD HAROLD LOTHROP BORDEN
IPC: C22C19/07
Filed: 1964-12-18
Abstract: A component of a magnetically operated switch is made from an alloy containing:-  .cobalt.40-75.parts by weight .iron.25-60.parts by weight .vanadium.1-5.parts by weight  together with impurities and incidental elements such as manganese, cerium, magnesium, beryllium or calcium, by a series of processing steps terminating in a cold reduction, generally by rolling, of at least 60%, followed by a partial anneal at a temperature of 350 DEG -675 DEG C.  The anneal is preferably carried out in a protective atmosphere such as hydrogen, helium, argon or nitrogen, although for thicker sections air is permissible.
Patent GB-1443528-A (GB)
Title: Method and apparatus for separing impurities from air
IPC: B01D45/16
Filed: 1973-11-07
Abstract: 1443528 Centrifugal separator CENTRALNE BIURO TECHNICZNE PRZEMYSLU MASZYN WLOKIENNICZYCH 7 Nov 1973 [24 Nov 1972] 51740/73 Heading BIT Impurities are separated from air by introducing impurity-laden air into an inlet duct 1; accelerating the flow of air in the duct; directing the accelerated air into a spiral duct 3 to swirl the air so as to cause centrifugal separation of impurities therefrom; discharging a part of the air cleaned by its motion in the spiral duct to atmosphere; directing the remaining air into a chamber 8 in which the air flow is decelerated; causing a change in the direction of the air flow in the chamber whereby further impurities in the air are separated out; and causing the redirected air to pass through a plurality of filters 7 and to re-enter the intake duct 1. The intake duct is divided into two by means of a vane 2. Clean air leaves the duct 3 via a slit in its inner bounding wall and through axial outlets 5. A portion of the air and the impurities enter the chamber 8 through an opening 4 at the outer periphery of the duct. The separated impurities are collected in a removable tray 9 at the bottom of the chamber. The filters 7 which may be of wire gauze are located beneath a guide plate 6. The air after passing through the filters re-enter the duct 1 via openings 10.
Patent GB-1096700-A (GB)
Title: Method and apparatus for distilling scale forming liquor
IPC: C02F1/04
Filed: 1966-11-22
Abstract: Scale-forming liquor, e.g. sea water, is submitted to distillation by preheating the liquor, passing it through a multiple-effect evaporator, the first effect of which is operated at a temperature above 250 DEG F. e.g. at 315 DEG F., mixing the partially-concentrated liquor, withdrawn from the final effect, with unflashed liquor withdrawn from the last stage of a multi-stage flash evaporator, and passing the liquor admixture through the evaporating stages of the flash evaporator.  The feed liquor is preheated by passing it through condensers traversing the upper part of the flash evaporator and then through a series of heat exchangers wherein it is heated by part of the vapours conducted from the heating chambers of the multiple-effect evaporator.  After partial preheating in the condenser of the heat rejection section of the flash evaporator, the feed sea water may be degasified by mixing it with acid and passing it through a vessel which is attached to a barometric condenser and a steam-jet ejector.  The degasified sea water then flows through the condensers of the heat recovery section of the flash evaporator. The multiple-effect evaporator may be of the type wherein the liquor flows in film-form down long vertical heat-transfer tubes, or flat plate-type heat transfer surfaces can be used.  Each effect may be associated with a flash tank for distillate. Reference is made to the concentration of sodium aluminate liquor obtained by the alkaline extraction of bauxite.
Patent GB-1237779-A (GB)
Title: Method of, and means for manufacturing objects by isostatic compression
Inventor: BERGMAN CARL
IPC: H05B3/52
Filed: 1968-11-07
Abstract: 1,237,779. Isostatic pressing. ALLMANNA SVENSKA ELEKTRISKA A.B. 7 Nov., 1968 [8 Nov., 1967], No. 52764/68. Heading B5A. An object is compressed isostatically by placing it in a container with at least one elastomeric or displaceable wall or bottom, filling the container with a pressure medium and sealing it, placing the container in a pressure chamber containing an hydraulic or pneumatic pressure medium and increasing the pressure in the chamber. The material which may be tungsten carbide powder with a cobalt or nickel binder may be encased in this casing of plastics material or metal foil or in a sheathing tube. In the apparatus shown for compressing a spiral heating element, the element 13 is placed in a thin-walled container 12 having a porous base 15, an elastomeric bag 16 and a support 17 fitted with porous member 18. The container is filled with a pressure medium which does not affect the element 13 and the container is sealed with a cap 14. The filled container is then immersed in a chamber 19 containing a pressure medium which does not affect the chamber and this pressure medium is pressurized by pump 20, the fluid pressure being transmitted by movement of membrane 16 to the pressure medium in the inner container thereby compressing the element 13. In an alternative embodiment, the elastomeric bag is replaced by a piston slidably mounted in a cylinder.
Patent GB-1528780-A (GB)
Title: Primary electric current-producing dry cell
IPC: H01M4/06
Filed: 1975-12-24
Abstract: 1528780 Dry cell comprising a polycarbonfluoride cathode UNION CARBIDE CORP 24 Dec 1975 [30 Dec 1974] 52779/75 Heading H1B A primary electric current producing dry cell comprising a zinc anode, a cathode containing a polycarbonfluoride compound of form (CF x ) n  as the active material and an aqueous alkaline electrolyte. The zinc anode may be in the form of a plate, sheet, mesh, pressed powder or gel, the cathode may contain a binder and/or electrolyte absorbing material, e.g. carboxymethylcellulose or carbonymethylhydroxyethylcellulose, an electrically conductive material, e.g. carbon black or graphite, and a surfactant, e.g. alkylaryl polyethers. The electrolyte may be an aqueous solution of potassium hydroxide, sodium hydroxide, lithium hydroxide or mixture thereof and may also contain a surfactant and Al 2 O 3 , SiO 2 , TiO 2  and ZnO. The cell may be prepared in the form of a button cell in which the anode and cathode are separated by an ion permeable cellophane film adjacent two layers of rayon which are soaked in the electrolyte.
Patent GB-1035629-A (GB)
Title: Improvements in gas analyzers
IPC: G01N27/16
Filed: 1964-09-11
Abstract: 1,035,629. Automatic voltage control. ROBERT BOSCH G.m.b.H. Sept. 11, 1964 [Sept. 12, 1963], No. 52964/65. Divided out of 1, 035, 628. Heading G3R. [Also in Division G1] In a voltage regulating network, for use in conjunction with a Wheatstone bridge-type electrical measuring circuit for the analysis of exhaust gas from an I.C. engine (see Division G1), a control transistor 60 connected across D.C. supply terminals 52, 53, is influenced in accordance with the voltage developed across the measuring bridge, and with fluctuations in the supply voltage. To achieve this, the base of transistor 60 is connected both to a point between a resistor 66 and a Zener diode 65 shunted across the bridge, and to a resistor 67 connected to the supply. The voltage across a load resistor 61 in the collector circuit of transistor 60 controls a driving transistor 62 which in turn controls the conductance of a power transistor 63. "Kinky" germanium diodes 70 provide a constant voltage reduction between the output of the regulating network and the input to the bridge.
Patent GB-1109229-A (GB)
Title: Silicon-containing steel shot for use as a blasting agent
IPC: C22C33/02
Filed: 1966-11-29
Abstract: A blasting agent for use on metal, stove or glass surfaces consists of round steel shot particles having a size of 0.2-5 m m . and containing, by weight,  ..C.0.1-1% ..Si.1.1-8% .optionally.Mn.0.1-2% ..Cr.0-5% ..Ni.0-5% ..Cu.0-5% ..Al.0-0.5%  The shot is produced by either atomizing or nozzle-spraying molten steel with the aid of water, steam, air or nitrogen and then quenching, or by disintegrating molten steel on a granulating plate, cone or groove and then quenching.
Patent GB-1406461-A (GB)
Title: Process for polymerizing olefinic hydrocarbons
IPC: C08F4/42
Filed: 1972-11-21
Abstract: 1406461 Allyl uranium compounds in mono- and diolefin polymerization; polybutadiene SNAM PROGETTI SpA 21 Nov 1972 [26 Nov 1971 10 Oct 1972] 53815/72 Heading C3P Conjugated diolefins and monolefins are homo- and copolymerized in the presence of a catalyst comprising a compound of the formula wherein each of the Rs is a hydrogen atom or C 1-10  hydrocarbon radical, X is a halide and n is 1, 2 or 3. The process may be carried out in an inert solvent and under an inert atmosphere. A co-catalyst may be present, which is a Lewis acid. A preferred polymeric product is a polybutadiene which (a) is gel-free, (b) has an ultimate tensile strength of 220 to 250 kg/cm<SP>2</SP> when vulcanized under certain specified conditions, (c) a cis-1,4 content above 98% and (d) a semi-crystallization time of less than 10 minutes determined at -20‹ C. In the examples, butadiene, isoprene, 1,3-pentadiene, butadieneisoprene, butadiene-1,3-pentadiene, ethylene, and ethylene-butadiene or -isoprene mixtures are polymerized in toluene or hexane using (C 3 H 5 ) 3 UCl, (C 3 H 5 ) 3 UI, (C 3 H 5 ) 2 UCl 2  or (C 3 H 5 ) 3 - UBr (formed in situ from (C 3 H 5 ) 4 U and Br 2 ) as catalyst and in some cases, as co-catalysts, AlI 3 , AlCl 3 , AlCl 3 .O(C 2 H 5 ) 2 , BCl 3 , Al(C 2 H 5 ) 3 , Al(C 2 H 5 )Cl 2 , or TiCl 4 .
Patent GB-1091140-A (GB)
Title: Door opening devices for up-and-over doors
IPC: E05B65/00
Filed: 1965-12-22
Abstract: 1,091,140. "Up-and-over" door opening device; releasable fastenings. A. T. MENDELLE. Oct. 18, 1966 [Dec. 22, 1965], No. 54476/65. Headings E2A and E2M. A spring-loaded latch 11 of an "up-andover" garage door, preferably capable of opening automatically under the influence of counterbalancing weights and/or springs, is operated by a Bowden cable 3 which is actuated by means of a lockable handle 4 attached to post 2 or by a pressure pad 23 situated at an appropriate distance in front of the door. A spring tensioner may be used to ensure the immediate opening of the door on release of the latch, and braking shoes 20 may be provided to arrest the movement of the door when it reaches the fully open position. The latch means may be at the bottom of the door post, on the door, or on the floor beneath the door. As indicated in Figs. 3 and 4, one end of the inner cable 6 of the Bowden cable is attached to drum 5 on shaft 7 associated with handle 4 and the other end of cable 6 is operatively attached to arm 14 of bell crank lever 12, the other arm 15 being operatively attached to door latch 11. In a modification (Fig. 6, not shown), the inner cable is attached directly to the latch. The outer sheath 8 of the Bowden cable is secured at one end to housing 9 of the lockable handle assembly and at the other end to cover 16 of the latch mechanism. Adjustment means (10) are provided at both ends of the Bowden cable. In a modified latch mechanism, see Figs. 7 and 8, a handle 17 is associated with shaft 19 which has a lever 18 operatively connected to latch 11 for withdrawing the latch for manual opening of the door. Instead of the door latch co-operating with a fixed member of the door, it may co-operate with a handle-operated bolt, (Fig. 14, not shown). The pressure pad actuating means comprises housing 25 containing swivel bracket 26 haying bell crank 27 pivotally mounted thereon, see Fig. 11. One arm of the bell crank is attached to the end of the inner cable and the other arm is operatively connected to pad 28. Compression springs 29 are provided below the pad and a layer 30 of rubber is provided above the pad. The end of the outer sheath of the Bowden cable is secured to the housing. In a modification (Figs. 12 and 13, not shown), the compression springs are replaced by a tension spring and the bell crank is mounted on a pivot instead of on a swivel bracket.
Patent GB-1218728-A (GB)
Title: Torsional vibration damper for motor-vehicle plate clutches
Inventor: FELLER OTTO
IPC: F16D13/68
Filed: 1969-11-06
Abstract: 1,218,728. Clutch discs GOETZEWERKE FRIEDRICH GOETZE A.G. 6 Nov., 1969, No. 54510/69. Heading F2U. A clutch disc 1 is coupled to its hub 4 through a series of resilient blocks 8 in the form of a polygon and with their ends connected alternately to hub-spider arms 5 and to metal members 9 of streamlined section secured to disc 1 by rivets 17. The ends of members 9 have chamfered portions 14, 15, and the resilient blocks 8 are enclosed by a disc 6 parallel to disc 1 and secured to hub 4.
Patent GB-1379582-A (GB)
Title: Beverages and nutriments and preparations for making them
IPC: A23L2/40
Filed: 1971-11-26
Abstract: 1379582 Beverage powders MARIA CLEMENTINE MARTIN KLOSTERFRAU VERTRIEBSGESELLSCHAFT mbH 26 Nov 1971 [26 Nov 1970] 55037/71 Heading C6E A dry preparation for making an aqueous or aqueous/alcoholic beverage comprises an effervescent couple in intimate admixture with a natural protein in the weight ratio 1:0À5 to 1:3. It may be prepared by drying a solution of a dispersible native protein and one component of the effervescent couple (i.e. an edible acid plus a compound which evolves CO 2  in acid solution) and mixing with the other component. Preferably both components are dissolved in protein solutions and dried before mixing. The protein may be derived from whey by dialysis. The product is preferably in the form of granules of 0À5-3 mm diameter. The composition may also contain one or more of a vitamin, a mineral salt, or an agent which imparts aroma, flavour, or colour. The composition may be free of sodium ions, containing physiologically tolerable  potassium salts.
Patent GB-1168455-A (GB)
Title: Preparation and use of Substituted Fluoran Derivatives
IPC: C09B11/24
Filed: 1966-12-08
Abstract: 1,168,455. Substituted 6-dialkylaminofluorans. NISSO KAKO CO. Ltd. 8 Dec., 1966 [9 Dec., 1965; 14 June, 1966; 15 Oct., 1966; 7 Nov., 1966], No. 55038/66. Heading C2C. [Also in Division D2] Compounds of the formula wherein R is chlorine or methyl; one of R 1  and R 2  is chlorine or methyl and dissimilar to the R and the other is hydrogen, chlorine or methyl; and R 3  is C 1 -C 4  alkyl and preparation thereof by heating a 4-dialkyl-amino-2-hydroxy-2<SP>1</SP>- carboxybenzophenone with an appropriately substituted phenol at an approximately equimolar proportion in the presence of a dehydrating agent such as sulphuric acid. The preparation of 2-chloro-3-methyl-; 2-chloro-1,3-dimethyl- and S-chloro-2-methylsubstituted 6- dimethylamino - 6 - diethylamino - and 6 - din - butylamino fluoran is described.
Patent GB-1208266-A (GB)
Title: Improvements in or relating to integrated circuits
Inventor: GAY MICHAEL JOHN
IPC: H01L29/00
Filed: 1966-12-09
Abstract: 1,208,266. Semi-conductor devices. PLESSEY CO. Ltd. 1 Dec., 1967 [9 Dec., 1966], No. 55299/66. Heading H1K. A method of producing isolating regions 5 between adjacent circuit components in an integrated circuit comprises depositing on the semi-conductor material 2 of the integrated circuit between the components an area 3 of electrically conductive material forming a Schottky junction with the semi-conductor material, and applying a suitable biasing voltage to produce the isolating depletion layers in the semi-conductor material beneath the conductive material. The semi-conductor material is gallium arsenide and the conductive material is gold. The principle may be applied to isolating F.E.T.'s and in this case the gate electrode is formed in a similar manner.
Patent GB-557495-A (GB)
Abstract: 557,495. Solid fuel cooking stoves. TRIPLEX FOUNDRY, Ltd., and HORRELL, C. R. May 22, 1942, No. 6972. [Class 126] In a solid fuel cooking stove of the enclosed type having a solid door 11 set a short distance in front of a vertical grid or front bars 14 to allow access for raking the fire or toasting, a plate 16 at the bottom of the space between the door and grid is formed with an opening substantially the full width of the grid normally closed by a pivoted flap 17 carrying a pivoted peg 20 projecting through the door frame 10 to engage a rib 22 on the door face. When the door is opened the flap 17 turns downwards about its pivots 18 and ashes accumulated above it drop into the ashpit below the firebars. Alternatively the flap may be released or positively actuated by a peg or lug on the door.
Patent GB-1406557-A (GB)
Title: Method of making pile fabric
IPC: D06M13/292
Filed: 1973-12-03
Abstract: 1406557 Tufted pile fabrics TILLOTSON CORP 3 Dec 1973 [6 Dec 1972] 55906/73 Heading D1K The tuft loops of a tufted pile fabric 1 are anchored to the backing by impregnating the backing with a liquid plasticiser, coating the impregnated backing with a resin powder and heating the resin to fuse it to the backing. A further backing may be applied. The fabric 1 is fed over a roller applicator 9 to apply the plasticiser, over a fluidised bed of resin 15 and then over a heated roller 21.
Patent GB-1299848-A (GB)
Title: Apparatus for tinning of metal wire
IPC: C23C2/08
Filed: 1970-11-25
Abstract: 1299848 Tinning metal wire GEBAUER & GRILLER 25 Nov 1970 [19 March 1970] 56136/70 Heading C7F Apparatus for tinning metal wire, e.g. Cu wire, comprises a trough 11 filled with a tin bath 14 and provided on two oppositely positioned sides with coaxially aligned dies having openings through which wire 8 is fed into and out of the bath, there being provided means for heating the dies independently of the tin bath. The thickness of the coating may be controlled by the dies, e.g. to a value of 0À5-1 for a thin layer or 5Á for a thick layer. The tin bath may be maintained under vacuum or a protective atmosphere, vacuum device 29 and gas-tight lid 13 permitting this, and for easier initial feeding of the wire, trough 11 is rotatable about its axis to a position where the dies are above the liquid level and the dies are made releasable from the trough by a wing-nut holding device. Prior to tinning the wire passes through a flux bath equipped with felt applicators, scraping stone and felt wipers whereby excess flux is removed, and a pump to re-cycle said excess, and after tinning the wire is cooled in a coolant bath and air-dried.