baber/WOPTO huggingface dataset:
Patent GB-1491507-A (GB)
Title: Inductive displacement transducer
IPC: G01D5/20
Filed: 1974-11-19
Abstract: 1491507 Measuring displacement electrically ROBERT BOSCH GmbH 19 Nov 1974 [20 Nov 1973 3 April 1974] 49952/74 Heading GIN [Also in Division H1] An inductive displacement transducer comprises a coil 10 mounted on a ferromagnetic U-shaped core 11, a magnetic shunt 12 which is movable along the limbs of the core in response to the displacement to be measured, and means for producing a signal dependent on the inductance of the coil 10. For operations at high frequencies e.g. 100KHz the shunt 12 may be laminated, or may be made from thin copper or silver films or from thin wire turns. As shown in Fig. 3, the coil 10 may be used as a frequency determining component 32 in an oscillator circuit comprising a comparator 30, rectifier 33 and integrator 34, the D.C. voltage at 35 being proportional to the inductance of the transducer 32, an A.C. output terminal 31 also being provided. The amplitude of the output signal U32 of component 32, Fig. 4, is determined by the inductance of the transducer and so is the frequency of the signal since when the output signal of integrator 34 reaches the threshold UO or -UO of the comparator, the output signal U30 of the comparator changes polarity. Modified systems are described, Fig. 7 and 8, (not shown) for improving the linearity of the output and for producing other desirable input/output relationships by varying the thresholds of the comparator. The shunt 12 may be coupled to the float of a fluid level gauge; or to a baffle in the induction manifold of an I.C. engine to monitor the rate of flow of air. The shunt 12 may move in response to linear or angular displacement, the limbs of the U, in the latter case, being curved.
Patent GB-1426067-A (GB)
Title: Multi-cylinder web-drying apparatus
IPC: D21F5/02
Filed: 1973-10-29
Abstract: 1426067 Drying webs VALMET OY 29 Oct 1973 [13 Nov 1972] 50280/73 Heading F4G A multiple cylinder dryer for drying a web 11 comprises a drying cylinder group, an endless drying felt or wire 8 and a plurality of grinding rollers 7, the arrangement being such that the drying cylinders of the group lie outside the drying felt or wire but in engagement therewith. In use the web 11 supported by the felt or wire comes into direct contact with the cylinders 1, 2, 3, 4, 5, 6, in turn. As shown the group comprises two horizontal rows of cylinders and gas may be directed on to the web 11 adjacent guiding rollers 7 by variable width tube arrangements 13 or hoods 14. The group may comprise two vertically extending rows (Fig. 2, not shown) in which case the guide rollers are perforated so that the web and felt or wire may be urged on to the surface thereof. Blowing hoods may be provided about the vertically arranged guiding rollers (Figs, 3, 4, not shown). The space within the felt or wire may be evacuated, sides being provided on the dryer to form with the felt or wire a closed space (Figs. 2, 3, 4, not shown). Four embodiments of two co-operating groups of drying cylinders are disclosed (Figs. 5 to 8, not shown) the web being completely supported by the drying felt(s) or wire(s) in its passage from one group to the other. After passing over the second group the web passes through a calender and then on to a reeling device. The dryer may comprise a plurality of single rows of cylinders (Fig. 9, not shown).
Patent GB-1190849-A (GB)
Title: Polymer Latices
IPC: C08C1/07
Filed: 1968-10-23
Abstract: 1,190,849. Agglomerating latices. MONSANTO CO. 23 Oct., 1968 [23 Oct., 1967; 2 Jan., 1968], No. 50394/68. Heading C3P. A latex of a polymer, the surface of particles of which can coalesce and containing as emulsifying agent a salt of an organic acid, is mixed with a water-soluble acid anhydride, the acid of the anhydride having a higher dissociation constant than the acid of the salt, and the mixture is allowed to stand with minimal agitation to hydrolyse the acid anhydride and produce agglomeration, whereafter the latex is stabilized either by addition of further emulsifier or by regenerating the emulsifier by the addition of alkali. If desired, the polymer latex may contain an electrolyte. The polymer of the latex can be a rubber, or in the case of a styreneacrylonitrile copolymer, the particle surfaces can be softened by prior contact with styrene monomer. Suitable anhydrides are acetic anhydride and maleic anhydride. Sodium oleate is the exemplified first emulsifier.
Patent GB-1118599-A (GB)
Title: Method and apparatus for the automatic control of a continuous distillation process
IPC: B01D3/42
Filed: 1965-11-29
Abstract: 1.118,599. Control of fractionating columns. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 29 Nov., 1965 [30 Nov., 1964], No. 50589/65. Heading B1B Continuous fractionation of a mixture in a distillation column is controlled automatically to obtain overhead and bottoms products of constant composition by adjusting the reflux flow through line 8 by means of a controller 28 in proportion to the heat-flow through line 16 to the reboiler 14 by a signal derived from a meter 24 which measures the heat-flow, while at the same time adjusting the heat flow by a controller 25 actuated by a signal from a meter 20 which measures the composition of the bottoms product. Thus any change in vapour flow to the column necessary to maintain the desired composition of the bottoms product is immediately compensated for by a corresponding change in reflux flow so that the ratio between vapour and reflux flows in the upper part of the column is kept constant and hence the desired composition of the overhead product is maintained. The liquid level in the base of the column is kept within desired limits by a gauge 22 and controller 23 adjusting the bottoms product flow. In the accumulator 7 the liquid level is maintained by a gauge 29 and controller 30 adjusting the overhead product flow. In the modification of Fig. 2 not shown, the output from the heat flow meter 24 is directed to a controller for the overhead product flow, with the level controller for the accumulator adjusting the reflux flow.
Patent GB-1186100-A (GB)
Title: Improvements in or relating to Card Stacking Devices.
IPC: G06K13/14
Filed: 1967-11-08
Abstract: 1,186,100. Delivering sheets. BULL GENERAL ELECTRIC (NEDERLAND) N.V. 8 Nov., 1967, [18 Nov., 1966], No. 50799/67. Heading B8R. A machine for stacking record cards comprises a plurality of reception compartments, one of which is shown diagrammatically in Figs. 12 and 13. Each compartment is provided with a card supporting tray mounted on a vertical guide rod, the tray and rod being suspended by spring 129 adapted to maintain the upper surface of the stack at a constant level as cards accumulate. Manual operation of device 144 releases member 175 to allow the tray, rod, and spring 129 to descend to a lower position, Fig. 13, where the cards may be unloaded. Simultaneously device 144 actuates retaining member 155 to retain cards which arrive or are situated above the member 155 after the actuation of device 144. Upon removal of the stack spring 180 returns the tray, rod and spring 129 to their upper, collecting, position and member 175 again becomes  locked in its initial position by catch 170. A latch member 182 retaining a catch 185 holds the card retaining member 155 in its active position until the tray returns to its uppermost position when the catch is released by member 175. The device 144 may be locked against actuation until a predetermined number of cards has accumulated on the tray. Cylinder 187 damps the return of the tray to its uppermost position under the action of spring 180.
Patent GB-1164838-A (GB)
Title: New Peptides having an Acth-Action and Process for their Manufacture
IPC: C07K14/695
Filed: 1966-11-14
Abstract: 1,164,838. Polypeptides. CIBA Ltd. 14 Nov., 1966 [12 Nov., 1965], No. 50896/66. Heading C2C. A peptide which differs from an ACTH- active (all L-) peptide containing an 18 to 24 amino acid residue sequence (from the N- terminus) of a natural corticotrophin solely in that it has L-lysine instead of L-arginine residues in the 17- and 18-position, its derivatives (including its ester, amides, and blocked terminal groups), its acid addition salts and complexes thereof with inorganic or organic substances capable of prolonging the activity is prepared by standard methods of peptide synthesis. The peptides may have one or more of the amino acid residues in the positions 1 to 5 may be replaced by the residue of another natural α-aminoacid or of a homologue thereof. The following starting materials and intermediates are prepared: Z-Lys(BOC)-Lys(BOC)- NHNH 2 , L-Lys(BOC)-Lys(BOC)-Pro-OH, LLys(BOC) - Lys(BOC) - Pro - Val - Lys(BOC) - Val - Tyr - ProOtBu, H - Lys(BOC) - Lys(BOC) - Pro - Val - Lys(BOC) - Val - Tyr - Pro - OtBu, Z - Lys(BOC) - Pro - Val - Gly - Lys(BOC) - Lys(BOC) - Lys(BOC) - Lys(BOC) - Pro - Val - Lys(BOC) - Val - Tyr - Pro - OtBu, and H - Lys(BOC) Pro - Val - Gly - Lys(BOC) - Lys(BOC) - Lys(BOC) - Lys(BOC) - Pro - Val - Lys(BOC) - Val - Tyr - ProOtBu. Pharmaceutical compositions comprise the compounds of the invention, especially complexes thereof which prolong the activity together with an inert diluent or carrier. The composition may be in a form suitable for enteral and parenteral administraion.
Patent GB-1459453-A (GB)
Title: Fibre-reactive copper complex formazane dyestuffs their manu facture and use method and device for continuous winding onto a spool and  undwinding from a spool of an endless band eg a cinematograph
IPC: C09B50/00
Filed: 1973-12-16
Abstract: 1459453 Fibre-reactive copper containing formazane dyestuffs CIBA-GEIGY AG 16 Dec 1973 [29 Dec 1972] 51042/73 Heading C4P Novel reactive dyestuffs of the formula (wherein one Y is SO 3 H and the other is a fibre-reactive halotriazinylamino group, and Hal is Cl, Br or F) are prepared by reacting corresponding formazane complexes wherein one Y is SO 3 H and the other is an acylatable amino group with a halotriazine, preferably a trihalotriazine one halogen atom of which is optionally replaced, before or after the reaction, by reaction with an aliphatic or aromatic hydroxy or mercapto compound or an amino compound or ammonia. The dyestuffs are suitable for dyeing and printing silk, leather, wool, polyamide fibres and polyurethanes, and especially fibrous cellulosic materials, e.g. linen, cellulose, regenerated cellulose and cotton.
Patent GB-1245253-A (GB)
Title: Surface cleaning of aluminium and aluminium alloys
Inventor: VAZIRANI HARGOVIND NIHCHALDAS
IPC: C09J5/00
Filed: 1968-10-30
Abstract: 1,245,253. Cleaning aluminium. WESTERN ELECTRIC CO. Inc. Oct. 30, 1968 [Nov. 1, 1967], No. 51392/68. Heading C7E. A surface containing Al or an Al alloy is cleaned by a method comprising the steps of contacting the surface with a first aqueous solution containing dichromate ions and sulphate ions, and then with a second aqueous solution containing a reducing agent having an oxidation potential of up to 1À3 volt subsequent to the step of contacting the surface with the said first solution. The said first solution contains 0À1 to 10 wt per cent of Na 2 Cr 2 O 7  or K 2 Cr 2 O 7  or 0À1 to 20 wt per cent of CrO 3 , in each case there being 10 to 50 wt per cent conc. H 2 SO 4  added, and contacting takes place at 70 to 150 F. for 2 to 20 minutes, and the second solution may be a 0À1 to 10 wt per cent aqueous solution of ferrous sulphate, sodium sulphate, sodium bisulphite, or sodium thiosulphate, the second contacting taking place within an hour of the first, at 70 to 150 F. for up to 60 seconds. Prior to the above-mentioned steps, the Al may be subjected to one or more of the following: - degreasing, sandblasting, cleaning with one or more of sodium metasilicate, trisodium phosphate, sodium borate, or an alkyl aryl polyether alcohol, or cleaning with HNO 3  /H 3  PO 4 .
Patent GB-1312952-A (GB)
Title: Method of coating a surface using an electrostatic technique
IPC: C03C17/32
Filed: 1970-03-24
Abstract: 1312952 Coating surfaces GLASS CONTAINERS CORP 24 March 1970 [24 March 1969 (2)] 51622/72 Divided out of 1312951 Heading B2E Surfaces are coated by spraying a liquid coating agent comprising a monomer or oligomer curable by heat, free of volatile solvent or diluent (defined as liquids unreactive with ingredients of the coating material, the liquid coating agent carrying an electric charge, an electrical charge of opposite sign thereto being maintained on the surface which is at a temperature sufficient to cure, at least partially, the coating agent to form a hard polymeric coating. Suitable coating compositions and substrates are listed as in Specification 1312951. The method may be used to coat glass, ceramics, metals, plastics and wood.
Patent GB-1498209-A (GB)
Title: Process for the production of concentrated nitric acid
IPC: C01B21/26
Filed: 1975-12-18
Abstract: 1498209 Concentrated nitric acid SOC ITALIANA RESINE SIR SpA 18 Dec 1975 [20 Dec 1974] 51885/75 Heading C1A A method of preparing concentrated nitric acid comprises: (a) contacting a gaseous flow 24 containing nitrogen dioxide, which flow has been obtained by gas-phase catalytic oxidation of ammonia and treatment of the resulting gas so as to remove substantially all the water therefrom and to oxidize substantially all of the nitric oxide therein to nitrogen dioxide, with nitric acid 25 having a concentration of 80 to 99 wt. per cent, so as to form a solution 26 comprising nitrogen dioxide in nitric acid; (b) contacting a gaseous flow 33 containing nitrogen dioxide and oxygen with nitric acid 31 having a concentration of 68 to 75 wt. per cent so as to increase said concentration to 70 to 80 wt. per cent; (c) contacting the liquid products 35 from stage (b) and liquid nitrogen dioxide with air 38 so as to form a liquid 39 which is superazeotropic nitric acid having a concentration of up to 90 wt. per cent and a gas 33 which is recycled to constitute the gaseous flow employed in stage (b); (d) delivering 27 the solution of nitrogen dioxide in nitric acid 26 formed in stage (a) and the liquid products 39 from stage (c) to a first intermediate level of a distillation column 14 fitted with a reboiler 19; in which (i) gaseous nitrogen dioxide 40 from the top of the column is liquefied 21, a part 41 thereof being recycled as reflux to the column and the remainder 36 thereof being recycled to stage (c); (ii) a first flow 45 of nitric acid having a concentration of from 80 to 99 wt. per cent is drawn off from a point in said column below an inlet for gas from said reboiler, a part 25 of said flow being recycled to stage (a) and the remainder of said flow being passed through said reboiler so as to form a second flow 32 of nitric acid having a concentration of 68 to 80% which is recycled, with dilution by means of water and/or dilute nitric acid 30 if necessary or desired, to stage (b); and (iii) nitric acid 42 having a concentration of at least 98 wt. per cent is recovered from a second intermediate level of said column which is above the first intermediate level. The dilute nitric acid 30 employed in stage (d)(ii) may be obtained by scrubbing the nitrogen dioxide not absorbed in stage (a) with water 28. The gaseous flow 34 from stage (b) may be recycled to stage (a). The air 38 used in stage (c) may have previously been contacted 15 with the nitric acid 42 having a concentration of at least 98 wt. per cent.
Patent GB-1137260-A (GB)
Title: Improvements in apparatus for washing and filling beer kegs or like containers
Inventor: RUDDICK MAURICE
IPC: A61L2/07
Filed: 1966-11-21
Abstract: 1,137,260. Washing and filling casks. BURNETT & ROLFE Ltd. 6 Nov., 1967 [21 Nov., 1966], No. 52017/66. Heading B8T. A machine for washing, sterilizing and filling beer kegs comprises control devices whereby, movement from one station to the next is prevented until the next station is empty and a delay device for retaining a keg at a station sufficiently to ensure effective sterilization. An endless chain conveyer 1 moves an inverted keg 3 to a sterilizing and washing station 2. The keg 3 triggers a switch 4 causing platforms 5 to lift the keg off the conveyer 1 until it engages a stop 6. A head 7 then connects with the bung hole of the keg to wash and sterilize the keg with steam. A succeeding keg 3 is stopped by the rear edge 8 of the platform 5. When the keg is washed and filled with steam the platform 5 is lowered and the keg conveyed to a tippler station 9. When the keg enters the tippler 10 it closes a delay device 11 which holds the keg in this position for a set time to allow the steam to sterilize the keg. The tippler is then turned about its pivot 12 to invert the keg into the upright position. In doing this the tippler releases switch 13 which locks the platform 5 at station 2 in its raised position to prevent a keg moving to the tippler station until the tippler is ready to receive it. When the tippler 10 is turned, switch 14 is closed and prevents the tippler turning back until the switch is released. The keg is then conveyed to the filling station 15 where it engages switch 19 which causes a platform 17 to lift the keg clear of the conveyer and engage a filling head 18. After filling, the platform is lowered and the keg conveyed away. The edge 16 of the platform 17 acts as a stop against a succeeding keg if the station 15 is occupied; in this position switch 14 is still engaged. When the keg moves into the station 15, switch 14 is released and the tippler swings back to its initial position where it re-engages and opens the switch 13 which in turn unlocks the platform 5. If the washing and sterilizing cycle has not finished, it is completed before the platform 5 is lowered and the keg conveyed to the tippler.
Patent GB-1333789-A (GB)
Title: Support device for a seat in particular for a vehicle
IPC: B60N2/16
Filed: 1970-11-03
Abstract: 1333789 Seats AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 3 Nov 1970 [2 Dec 1969] 52336/70 Heading A4J The front of a vehicle seat A is adjusted in height by the disengagement of a pawl 3 rotatably mounted about an axis X on a support member 1 from a rack 2 pivoted to a link B attached to the underside of the seat, the disengagement being effected by a two part movement of a cranked lever 8, arm 8b of which passes through a slot 9 in the support member 1 and is rotatable in a bore (10) Fig. 2 (not shown) in the pawl. The back of the seat is longitudinally adjustable in an arcuate guideway G.
Patent GB-1398949-A (GB)
Title: Fuel injector having selfcleaning filter
IPC: F02M61/12
Filed: 1973-11-12
Abstract: 1398949 Fuel injectors STANADYNE Inc and V D ROOSA 12 Nov 1973 [29 Nov 1972] 52448/73 Heading F1B A fuel injector comprises a tubular body 10, a valve chamber 14, and a pressure operable valve 16 spring-biased towards a valve seat 20 and having a discharge orifice 22, a valve guide 24 being provided with a cylindrical sleeve 58 which is in the flow-path of the fuel from an inlet 28 to the chamber 14 and which defines with the inner periphery 60 of the body 10 a restricted clearance 64, the width of which is less than the diameter of orifice 22. Particulate matter entrained in the fuel and of a size large enough to block orifice 22 is unable to pass through clearance 64 and is trapped by the edge 62 against which it is continually hammered by the pulsating fuel flow until reduced in size. A similar parallel flow-path 72, 76 is provided.
Patent GB-1408970-A (GB)
Title: Detergent compositions
IPC: C11D11/02
Filed: 1973-11-13
Abstract: 1408970 Detergent granules PROCTER & GAMBLE CO 13 Nov 1973 [13 Nov 1972] 52588/73 Heading C5D A granular spray-dried low phosphate detergent composition comprises: (A) from 10 to 30% by weight of a surfactant system consisting essentially of (i) the sodium and potassium salt of an alkyl benzene sulphonic acid in which the alkyl group contains from 9 to 20 carbon atoms; a mixture thereof; and (ii) an alkyl ether sulphate mixture of compounds having the general formula wherein R is an alkyl group, n is zero or an integer representing degree of ethoxylation and M is sodium or potassium; the average number of carbon atoms in R within said alkyl ether sulphate mixture varying between 16À01 and 19 and the average degree of ethoxylation of said mixture varying between 1 and 5 moles of ethylene oxide; and in which the mixture comprises the following percentages by weight of mixtures of compounds of Formula (I): from 0À1 to 2% of C 12-13  compounds; from 0À1 to 33% of C 14-15  compounds; from 25 to 55% of C 16-17  compounds; from 30 to 70% of C 18-19  compounds; from 1 to 30% of compounds having a degree of ethoxylation of zero; from 50 to 80% of compounds having a degree of ethoxylation of from 1 to 4; from 3 to 30% of compounds having a degree of ethoxylation of from 5 to 8; and from 0À1 to 10% of compounds having a degree of ethoxylation greater than 8; and wherein the weight ratio of said alkyl benzene sulphonate (i) to said alkyl ether sulphate mixture (ii) within said surfactant system varies between 0À1 : 1 and 6 :1; (B) from 10 to 90% by weight of an organic and/or inorganic salt selected from alkali metal silicates, alkali metal carbonates, electrolyte salts selected from watersoluble alkali metal and alkaline earth metal carboxylates, sulphates and chlorides, and mixtures of said organic and/or inorganic salts and (C) from about 1 to 8% by weight of water. (B) is sodium carbonate or sodium silicate and/or sodium acetate, potassium acetate, trisodium sulphosuccinate or magnesium sulphate. It may be a soap, e.g. sodium oleate or sodium stearate. Optional ingredients are (D) 1 to 35% wt. of a phosphate, e.g. alkali metal orthophosphate or tripolyphosphate, (E) 0À5 to 3% of a fatty acid, (F) a bleach, e.g. sodium perborate or potassium monopersulphate, (G) other conventional additives, e.g. hydrotropes. Specification 1,408,969 is referred to.
Patent GB-1293151-A (GB)
Title: Process for the preparation of tetrahydrofuran
IPC: C07B61/00
Filed: 1969-10-28
Abstract: 1293151 Hydrogenative dehydration catalysts KAO SOAP CO Ltd 28 Oct 1969 [29 Oct 1968] 52736/69 Heading B1E [Also in Division C2] Catalyst mixtures comprise a copper Containing hydrogenation catalyst containing at least one other metal and a dehydration catalyst. Catalysts are prepared in samples by adding successively to sodium carbonate solution, solutions of zinc sulphate, chromium trioxide, copper sulphate and, after generation of carbon dioxide has ceased, sodium hydroxide solution, washing, drying, pulverizing and calcining the precipitate, mixing the product with graphite and acid activated clay, forming into 0.50 mm. granules and heating successively with nitrogen, nitrogen and hydrogen and then with hydrogen alone (1); (3); by mixing the copperchromium-zinc catalyst of (1) with a silicaalumina catalyst instead of acid activated clay (4); with a molybdenum trioxide catalyst (5); and with alumina (6, 9) and by mixing a copper oxide-copper chromate catalyst with a molybdenum trioxide-alumina catalyst (12).