baber/WOPTO huggingface dataset:
Patent GB-1439212-A (GB)
Title: Process for the production of chloroformic esters
IPC: C07C68/00
Filed: 1973-10-17
Abstract: 1439212 Chloroformic esters BASF AG 17 Oct 1973 [19 Oct 1972] 48364/73 Heading C2C Chloroformates of mono- or polyhydric alcohols are prepared by feeding phosgene and alcohol continuously to a reaction vessel which contains at any one time at least 20% by weight of phosgene in the reaction mixture in such a way that the time taken for homogeneous mixing of the alcohol into the reaction mixture is less than 5 seconds the reaction temperature is less than 50‹ C. and the residence time is less than 1 hour, the phosgene being present in excess, an amount of reaction mixture is withdrawn equivalent to the amounts of alcohol and phosgene fed in, the withdrawn mixture is freed from phosgene and HC1 and phosgene optionally returned to the reaction vessel, optionally together with at least part of the HC1. The reaction mixture leaving the reaction vessel is preferably fed to an afterreaction zone in which there is substantially no backmixing. The reaction vessel is preferably tubular and the alcohol fed by means of a jet nozzle.
Patent GB-1023954-A (GB)
Title: Improvements in or relating to ropeway windlasses with rope travel indicating devices
IPC: B66D1/74
Filed: 1962-12-21
Abstract: 1,023,954. Hauling; position indicators. DUSTERLOH FABRIK FUR BERGWERSBEDARF G.m.b.H. Dec. 21, 1962 [Jan. 2, 1962], No. 48425/62. Heading B8B. The drive to a position indicator for a haulage rope 18, Fig. 3, is taken from a rope pulley or drum 17 engageable with the rope and mounted in a transportable housing 12 forming a unit separate from the windlass. The housing 12 may be detachably mounted as at 13 and held against the rope by a spring 14, the drive being taken through gears 20, 21 and a flexible shaft (not shown). In a modification (Fig. 1, not shown) the drive is taken from one of a set of pulleys over which the cable is returned for multiple laps over a haulage drum.
Patent GB-1334255-A (GB)
Title: Drive mechanisms for variable resistors
IPC: H01C10/32
Filed: 1970-10-15
Abstract: 1334255 Adjustable tuning control BLAUPUNKT-WERKE GmbH 15 Oct 1970 [15 Oct 1969] 48952/70 Heading H4Q [Also in Division F2] A drive mechanism for a variable resistor comprises a rotatably mounted disc 4 having a spiral shaped cam 5 and a rotatably mounted cog wheel 7 having a plurality of angularly spaced teeth 9, the axes of rotation of the disc and the cog wheel are relatively inclined (Fig. 2, not shown) and located such that the spiral cam 5 meshes between two adjacent teeth 9 on the cog wheel and the spiral cam 5 is shaped such that its two ends engage on opposite sides of the same tooth of the cog when a transition to the nest tooth pair on the cog wheel occurs. Connections 17 are provided for a rotary potentiometer arranged under the cog wheel 7 on the other side of base-plate 1. In a T.V. set a pointer 16 co-operates with a fixed scale and a milled edge 2 of the disc 4 projects through a slot in the front panel. The drive mechanism enables fine adjustments of the resistor for supplying a tuning voltage for capacitance diodes. End stops for the cam 5 are provided by a flange 11 which bridges several of the pins 9 so that rotation of the cog wheel beyond two end limits is prevented. The components of the drive mechanism may be of moulded synthetic material.
Patent GB-1089875-A (GB)
Title: Control circuit of an electric hotplate
IPC: H01H43/30
Filed: 1964-12-02
Abstract: 1,089,875. Control circuits for electric heating elements; thermal switches; automatic circuit breakers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Dec. 2, 1964 [Dec. 2, 1963], No. 48976/64. Headings H2B and H2H. Control circuits for electric heating elements.- To provide increased power for a certain time during the " warm-up " or " steady cooking " operation of an electric hot-plate heating element 1 whose control circuit elements 2 ... 7 are generally similar in identity and function to those of Specification 908,530, elements 8 ... 11 are connected to the circuit as shown in Fig. 2, contact 8 being in series with a low value resistor 9 and contact 10 being controlled by a bimetal member 11. Contacts 8, 10 modify the effect produced by the members 3, 4 on the regulating switch 2, 6, and after manual closure of contacts 8, 10, the contact 8 remains closed for a predetermined period during which the contact 10 is cycled on and off by the member 11 until a timing mechanism permanently opens both contacts. Means are provided to override the timing mechanism so that the contacts may be opened at any instant during the predetermined period. Thermal switches; automatic circuit breakers.- The above-described operation of contacts 8, 10 may be obtained by the switch construction shown in Fig. 4 in which depression of a switching bar 31 permanently closes contacts K1 and initially closes contacts K2, the bar 31 being latched against action of its return spring 41 by having teeth 35 engaging the wheel 36 of a cam 37 which alternately engages the arms of an armature 40 linearly movable by a bi-metal strip 11 against the action of a spring 39. Heating and cooling of the strip 11 allows step-wise return of the bar 31 whose shaped rack 32 produces alternate opening and closing of the contacts K2, and finally permanent opening of contacts K1, K2. Members 35, 36, 37 may be dispensed with by providing the bar 31 with teeth alternately engaging the arms of the armature, Fig. 5 (not shown). In another embodiment, Fig. 3 (not shown), the switching bar (16) is latched in one fixed position to maintain contacts K1 closed while a normally-closed snap-action switch constituting the contacts K2 is actuated by heating and cooling of the strip 11, each heating movement of the strip producing a one-step rotation of a toothed wheel (26) which turns a coaxially mounted cam (25), so that after a predetermined number of rotary steps by the wheel (26) the cam (25) unlatches the bar (16). The bar (16) controls further contacts (27) in series with the snap-action switch and the heating resistor of the bi-metal member 11, which contacts (27) are respectively opened or closed when the bar (16) is unlatched or latched. Means are provided to unlatch the switching bar at any point in its travel so that the time mechanism is over-ridden.
Patent GB-1355055-A (GB)
Title: Improvements in or relating to flue outlets for stoves and boilers
Inventor: WILLIAMS JOHN
IPC: F24C15/00
Filed: 1970-10-16
Abstract: 1355055 Outlets to chimneys KAYANSON ENGS Ltd 29 Sept 1971 [16 Oct 1970] 49232/70 Heading F4W A stove or boiler having a flue outlet 1 at its top rear edge has a flue pipe coupling which can be fixed in one position, Fig. 1 to give a vertical flue outlet, or reversed and fixed in a second position, Fig. 2 to give a horizontal flue outlet. The coupling comprises a plate 5 surrounding a collar with a flange 7 for connection to a flue pipe, and a hood 8 extending from one half of the plate 5 so that flanges 9 on the hood 8 and the plate 5 can be bolted to the top and back walls of the stove respectively, or vice versa to enclose the flue outlet.
Patent GB-1454367-A (GB)
Title: Lintels
IPC: E04C3/02
Filed: 1972-10-27
Abstract: 1454367 Lintels BIRTLEY MFG Ltd 29 Oct 1973 [27 Oct 1972] 49609/72 Headings E1B and E1K A lintel' comprises a web 5 with upper and lower horizontal plates 6, 7 which support the inner skin 12 of a cavity wall, a horizontal intermediate plate 10, which supports the outer skin 13, disposed between the flanges 6, 7, a fourth plate 3 substantially coplanar with the lower plate 7, and a vertical bridging member 4 disposed between the intermediate and fourth plates, said member 4 having a vertical external surface 16 which is coplanar with the external surface 17 of the outer skin 13 and forms a continuous surface therewith when the lintel is in position in the cavity wall with its web 5 within the cavity and the upper and lower plates 6, 7 extending into the inner skin 12. The intermediate plate 10 may be connected to a vertical or sloping Fig. 2 (not shown), web 8 to a flange 9 secured to the upper plate 6. The bridging member 4 may be of wood and the other parts of galvanised sheet steel secured together by welding or rivetting. A canopy, Fig. 3 (not shown) may be attached to the external surface 16 of the bridging element 4 as disclosed in copending Application 49610/72 to which the reader is referred for further details.
Patent GB-1217372-A (GB)
Title: Improvements in and relating to vehicle suspension systems
Inventor: WING BERNARD RIDGE
IPC: B61F5/32
Filed: 1968-06-29
Abstract: 1,217,372. Triaxle bogies. DUNLOP CO. Ltd. 26 June, 1969 [29 June, 1968; 19 Oct., 1968], Nos. 31202/68 and 49699/68. Heading B7L.  A vehicle suspension system, e.g. for rail vehicle bogies comprises a load supporting body 1 supported on three axles (only two of which 3, 4, are shown) by means of four rigid levers 2, one end of each lever being resiliently mounted on each axle box 10 of the two end axles, the other end of each lever being resiliently mounted on the adjacent axle box 7 of the central axle 4, each lever being pivotally connected at 15 to the body structure 1 so as to be capable of pivoting with respect to the vehicle body about a horizontal axis. Housings 6, 9 are arranged around each axle box 7, 10, and are held in position by a pair of " chevron " springs 8, 11, 12 each comprising V-shaped rubber blocks interposed between and bonded to V-shaped metal plates. Each housing 9 on the end axles 3 is formed integrally with its associated lever 2 which comprises two metal plates, Fig. 2 (not shown), extending normally to the axles 3, 4, each arm being pivoted to lugs 14 extending downwards from the supporting structure 1 by means of a rubber bushed bolt 15. The arms 13 are secured to the central axle box housing 6 by means of single rubber block " chevron " spring 16. The position of the pivot 15 on each arm 2 is chosen to give the desired load distribution between the axles 3, 4. To reduce rocking and tilting of the central axle box housing 6, longitudinal link members 19 are pivoted by means of rubber bushed pins 20, 21, to the central axle housing 6 and the adjacent lever arms 2 respectively, the links 19 lying in the horizontal plane passing through the axles. In a modification, Fig. 5 (not shown), the " chevron " springs 16 and associated abutment surfaces on the arms 2 and axle box housing 6 are inclined to the horizontal plane when considered in a cross-sectional plane normal to the axles so that the loads applied to the axle box housing 6 by the arms 2 act substantially radially with respect to the central axle, reducing the tendency for the central axle to tilt under braking torque, and enabling the length of the wheel base of the bogie to be reduced. The bogie is attached to a vehicle body by means of a central bushed king pin pivot, Fig. 2 (not shown).
Patent GB-1403249-A (GB)
Title: High-voltage electric switching circuits
IPC: H03K17/10
Filed: 1972-10-28
Abstract: 1403249 Transistor switching circuits FERRANTI Ltd 25 Oct 1973 [28 Oct 1972] 49797/72 Heading H3T A high voltage switching circuit comprises a plurality of semi-conductor devices T 1 -T n  connected in cascade to a constant current source, i.e. resistor R, the base electrode of one of the devices T 1  being connected to its emitter electrode through a resistance R 1  and to a source of trigger pulses, each other semi-conductor device having its base electrode connected to its emitter electrode so that in operation each transistor passes the same quiescent current so setting up a base to collector voltage below the avalanche breakdown voltage. The latter connections may be direct or, as in the embodiment, via resistors R-R n . Triggering of transistor T 1  causes avalanche breakdown to occur in the remaining transistors.
Patent GB-1073831-A (GB)
Title: Method of and apparatus for erecting multi-span bridges and the like
IPC: E01D21/10
Filed: 1963-12-18
Abstract: 1,073,831. Shuttering for building bridges. A. MANTSCHEFF. Dec. 18, 1963 [Dec. 21, 1962], No. 49967/63. Heading E1S. A bridge is constructed by building out in sections simultaneously from opposite sides of a pier 2 by means of an advancing framework 14 resting on an already completed part 9-12 and on the pier 2 on which construction is proceeding. The sections may be cast or prefabricated. The sections are cast on platforms 20, 21 supported by rods 22, 23 from the framework 14 and by rods 24, 25 from the adjacent sections 18 already cast. The platforms are moved from one section to the next on carriages on the framework 14. When the span 9-12, 18 &c. is completed the framework is moved on supports 15, 16 and a further support on the outer end of the half span 18', 19' &c. until it rests on a support on the next pier. The framework 14 may be below the bridge superstructure.
Patent GB-1281524-A (GB)
Title: A method of stimulation of rubber yield in hevea brasiliensis
Inventor: ABRAHAM PARAPALLIL DANIEL
IPC: C08C1/00
Filed: 1968-10-22
Abstract: 1281524 Increasing yield of rubber latex RUBBER RESEARCH INSTITUTE OF MALAYA 3 Oct 1969 [22 Oct 1968] 50185/68 Heading C1B A method of treating rubber-bearing Hevea brasiliensis for the purpose of stimulation of yield of rubber latex therefrom comprises applying thereto a substance which causes ethylene to be provided in or in close proximity to the latex-bearing tissues of the tree.
Patent GB-1270099-A (GB)
Title: A novel 3-(5-phenylpenta-1,3-dienyl)cyclohexan-1-one derivative and the preparation thereof
Inventor: ALDRIDGE DAVID CECIL
IPC: A01N35/06
Filed: 1968-10-23
Abstract: 1,270,099. Anti-inflammatory &c compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 Oct., 1969 [23 Oct., 1968], No. 50354/68. Heading ASB. [Also in Division C2] Pharmaceutical and veterinary compositions comprising, as active ingredient, 3 - [5 - (3 - chloro - 5 - formyl - 2, 6 - dihydroxy - 4 - methylphenyl) - 3 - methylpenta - 1, 3 - dienyl]- 2, 3, 4 - trimethylcyclohexan - 1 - one, in association with a pharmaceutical or veterinary diluent or carrier, therefor have anorexiant, anti-inflammatory and lipid catabolic activity and may be administered orally, parenterally or rectally in the form of tablets, capsules, aqueous or oily solutions or suspensions, emulsions, sterile injectable aqueous or oily solutions or suspensions, dispersable powders, syrups, elixirs or suppositories. Alternatively, the veterinary compositions may be in the form of medicated foodstuffs or of premixes suitable for addition to foodstuffs. The pharmaceutical compositions may also contain one or more other ingredients selected from other anorexiants, e.g. amphetamines; sedatives and tranquillizers, e.g. chlordiazepoxide, chlorpromazine, meprobamate and phenobarbitone; antidepressants, e.g. imipramine and mebanazine, stimulants, e.g. caffeine; oral hypoglycaemic agents, e.g. phenformin; metabolic stimulants, e.g. thyroxine; drugs which affect serum lipid concentration, e.g. clofibrate; vitamins and trace minerals; laxatives; bulkproducing materials, e.g. methylcellulose preparations; and anti-inflammatory agents and analgesics, e.g. aspirin, phenylbutazone, indomethacin, anti-inflammatory corticosteroids such as prednisolone, codeine and paracetamol.
Patent GB-1515816-A (GB)
Title: Manually operated liquid dispensing device
IPC: G01F11/04
Filed: 1976-12-02
Abstract: 1515816 Reciprocating pumps AFA CORP 2 Dec 1976 [5 Dec 1975] 50369/76  Heading F1A A liquid dispenser comprises a container portion 11 for the liquid and a body portion 12 rotatable relative to portion 11 to effect via cam means 24, 25, a suction stroke of a piston and cylinder assembly 13, 14, a stop (43, 44), Fig. 9 (not shown) indicating completion of the charging stroke, a dwell section 26 of the cam means providing a delay at the end of the charging stroke for complete filling of the pumping chamber 15 and closure of inlet valve 19 before the loading of a spring 16 is applied to the liquid in chamber 15, and the spring 16 effecting the discharge stroke on opening of a discharge valve 17, 21. A projection 42 unseats inlet valve 19 towards the end of the discharge stroke to provide a sharp discharge cut-off. In Figs. 13 and 14 (not shown), the piston is fixed and the cylinder reciprocates. In Fig. 15 (not shown), the container is detachable for refilling. Discharge valve actuator 17 has a locking device 38.
Patent GB-1093769-A (GB)
Title: Apparatus for supporting glass sheets
IPC: B65G51/03
Filed: 1965-11-26
Abstract: <PICT:1093769/C1/1> <PICT:1093769/C1/2> An apparatus for supporting a sheet of glass upon a flow of gas comprises a gas support bed having a plurality of gas outlets 34 (Fig. 3) for emitting support gas under pressure and a plurality of individual exhaust passageways 36 for permitting gas to escape from above the bed to zones of lower pressure beneath a sheet of glass supported above the bed, a supply for gas under pressure communicating with said gas outlets, and sleeves 50 associated with said exhaust passageways to vary the amount of gas that escapes through at least some of the individual exhaust passageways across the bed. The exhaust outlets 36 communicate with circular passageways 38 into which the sleeves 50 fit.  The sleeves have orifices 52 corresponding to the outlets 36, the orifices being reduced in size near the glass sheet edges and the orifice size pattern being symmetrical across the sheet width. One or two sleeves may be fitted into each passage 38.  To cater for sheets of different widths the sleeves may have a plurality of rows of orifices each row having a different size and pattern.  In an alternative embodiment (Fig. 9) the support bed 400 may comprise a hollow chamber 380 the gas emitting outlets 340 being connected to a lower plenum chamber by tubes 342 extending through the bed, the gas exhaust outlets 360 communicating with the hollow chamber.  Flat perforated members 520 taking the place of the sleeves 50 are positioned below each row of exhaust outlets by L-shaped support brackets 530, 540 within the hollow bed.  The support bed may be made of fused quartz or other heat resistant ceramic. It is preferably tilted at 8 to 12 degrees to the horizontal and extends from a feeding section, through a heating section and a bending section to a temporary section.  In the bending section the bed itself is curved about its longitudinal axis.  In the heating zone radiant heat is provided from gas burners suspended above the sheets, the combusted gases being circulated through a series of chambers to a plenum chamber beneath the bed from which they issue through flared outlets 34 as the glass sheet support gas.  The glass sheets are conveyed along the bed by a continuous chain conveyer having a plurality of feet (30) which engage the lower longitudinal side of the sheet and automatically align it for movement over the bed.
Patent GB-1063210-A (GB)
Title: Method of producing semiconductor devices
IPC: H01L29/00
Filed: 1963-12-23
Abstract: 1,063,210. Semi-conductor devices. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Dec. 23, 1963 [Dec. 24, 1962], No. 50677/63. Heading H1K. A semi-conductor device, e.g. of silicon, germanium or an A III B v  compound is made by diffusing an impurity into the entire surface of a body of one type conductivity to form an enveloping layer of opposite type. One or more contacts spaced from the edges of the wafer are attached to one face and a further contact attached over the whole of the opposite face. The edges of said one face are then chamfered to split the layer into two parts the minimum spacing between which is less than the spacing measured along the chamfer. The PNPN silicon controlled rectifier shown in Fig. 5 is made by this method with an ohmic anode contact 35 attached to one face and a PN junction forming cathode contact 39 and ohmic control contact 38 on the other. A PNP transistor may be similarly formed by making ohmic contacts to both faces and alloying a base contact through the P-type layer on one surface. The wafer may be circular in which case the chamfer forms part of the surface of a cone, pyramid or sphere. If a rectangular wafer is used, the chamfer may again form part of the surface of a pyramid or the surface of two cylinders with mutually perpendicular axes in the plane of the wafer. In each case the rectifying contacts may be made by alloying or by impurity diffusion followed by vapour or electrolytic deposition of a metal layer.
Patent GB-1402121-A (GB)
Title: Bicycle fitting and exercising apparatus
IPC: A63B22/12
Filed: 1972-11-03
Abstract: 1402121 Measuring riders for cycles RALEIGH INDUSTRIES Ltd. 3 Nov 1972 [31 Jan 1972 30 June 1972] 50748/72 Heading G1M [Also in Division A6] An apparatus for measuring a rider for a bicycle or for use as an exercising machine, comprises a frame mounting two pillars 22, 24 vertically movable simultaneously in fixed relationship by a motor 43 and gear box 21 driving a chain 31. The seat and handlebars are interchangeable and pivotable and the handlebars are also adjustable along a slide 32. Scales such as 44, 48 are provided for both the bars and the seat, and readings from these along with information as to the style of frame, handlebars and seat required may be used with or without a chart to determine the size of cycle required. Various sized pedals are adjustably positioned and associated with a frictional dragmember, 41, 47 see also Fig. 4. The shafts 22, 24 are originally adjusted at a selected height with respect to each other, and the motor 43 may be associated with limit switches and may also be used to rotate the crank shaft 40 to provide an effortless exerciser.
Patent GB-1113446-A (GB)
Title: A semiconductor device
Inventor: GUNN JOHN BATTISCOMBE
IPC: H01L47/02
Filed: 1965-05-21
Abstract: 1,113,446. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 21 May, 1965 [12 June, 1964], No. 50950/67. Divided out of 1,113,442. Addition to 1,070,261. Heading H1K. The subject matter is identical with that of Specification 1,113,442 but the claims relate to a body of appropriate semi-conductor material having two electrodes on one surface. As shown in Fig. 15 this surface has a slot 53 between the areas contacted by the electrodes 51 and 52.
Patent GB-1518500-A (GB)
Title: Bicomponent filaments
IPC: D01F8/16
Filed: 1975-10-24
Abstract: 1518500 Bicomponent fibres; polyamides and polyurethanes COURTAULDS Ltd 24 Oct 1975 [26 Nov 1974] 51114/74 Heading B5B [Also in Division C3] A bicomponent fibre comprises a polyamide and an elastic polyurethane formed by the reaction of a diisocyanate with a hydroxy terminated polyester or polyether, a non- polymeric diol and a triol (up to 3 molar per cent based on the non polymeric diol), the elastomer having a melting point of 200-235‹ C. The bicomponent is melt spun in the conventional manner, stretched to a draw ratio of greater than 3 : 1 and released to form a crimped fibre.
Patent GB-1159959-A (GB)
Title: Method of applying Bearing Members to Bodies
Inventor: CHEARY WALTER GRAHAM
IPC: B22D19/08
Filed: 1965-12-06
Abstract: 1,159,959. Casting composite articles; making bearings. JOSEPH LUCAS (INDUSTRIES) Ltd. 29 Nov., 1966 [6 Dec., 1965], No. 51617/65. Headings B3A and B3F. [Also in Division C3] A cylindrical steel rotor 10 of an hydraulic pump is heated, together with both a bearing- metal plate 13 supported in a refractory tray 16 and bearing-metal sleeves 12 in bores 11 in the rotor and containing sand cores 15, so that the bearing-metal 12, 13, e.g. phosphor-bronze containing 5-7% tin, melts and bonds to the rotor. The rotor 10 is then cooled, the tray 16 and cores 15 removed and the exposed surfaces of the bearing-metal are machined. Three holes in the plate 13 locate on pegs 14 and the plate contacts the rotor (and a weight 17 is applied to the sleeve ends and an edge 18 of the rotor) before the heating. The sand cores (see Division C3) are poured in as a slurry to be heat-cured before the melting process.