baber/WOPTO huggingface dataset:
Patent GB-1498559-A (GB)
Title: Production of ethyl chlorothioformate
IPC: C07C329/06
Filed: 1976-11-26
Abstract: 1498559 Production of ethyl chlorothioformate STAUFFER CHEMICAL CO 26 Nov 1976 [28 Nov 1975] 49399/76 Heading C2C A process for the production of ethyl chlorothioformate comprises reacting ethyl mercaptan with phosgene in the presence of an activated carbon catalyst in a system comprising two reactors in series in which the second reactor is operated as a continuous liquid phase reactor. Preferably both reactors are continuous liquid phase reactors with the second being operated as a flooded upflow packed bed reactor. The outlet temperature of each reactor is preferably between 0 and 70 C. with a residence time in the second reactor of from 5 to 90 minutes. Temperature control is suitably maintained by adding excess phosgene or by recycling unreacted starting materials to either or both reactors.
Patent GB-1517249-A (GB)
Title: Ice-cream making device especially for domestic use
IPC: A23G9/12
Filed: 1976-11-26
Abstract: 1517249 Mixing apparatus SEB SA 26 Nov 1976 [2 Dec 1975] 49492/76 Heading BIC [Also in Division F4] Apparatus for insertion in the freezing compartment of a domestic refrigerator to make ice-cream comprises a base 1 supporting at least one vessel 11 and a ring 7 having downwardly extending stirrers 8, 9, the ring and stirrers being vertically reciprocable so that in the lowest position the stirrers enter the vessels and in the highest position are withdrawn from them. As shown a motor 4 rotates (at 3-4 rev/min) a drum 16 having an external sinuous cam member 22 on which rest lugs 23 projecting from the ring which is restrained from rotation by engagement of openings 14 on columns 15, so that the ring and stirrers are positively raised but descend under the action of gravity; as the apparatus rests on a cooling surface 6 the ice-cream in the vessels freezes from the bottom upwards, so that the stirrers reciprocate only in the upper unfrozen portion of the mix and at the end rest on the surface of the mix, see Figs. 2-4 (not shown). The motor 4 can be automatically switched off by decirculation of the stirrer travel. The vessels 11 are slightly taller than recesses 12 in the base 1 so that they rest on the cooling surface 6 while being retained by their rims 11A. In a modification (Figs. 10-12, not shown) the ring is reciprocated by a cam-operated vertical central push-rod (44) and restrained from rotation by engagement of a diametral cross-piece (42) in a recess (43) of an upward extension of the base. In another embodiment, (Figs. 5-9, not shown) the vessel is annular and the sinuous cam member is discontinuous; the lugs 23 engage in the discontinuities and cause the ring and stirrers to rotate about the axis of the apparatus (there being no restraining means) until the increasing viscosity of the mix causes the lugs to disengage and slide up the cam member.
Patent GB-1526219-A (GB)
Title: Crop handling apparatus
IPC: A01D90/08
Filed: 1975-12-03
Abstract: 1526219 Trailer hitches SPERRY RAND CORP 3 Dec 1975 [5 Dec 1974] 49565/75 Heading A1P [Also in Division B8] A round bale pick up trailer has a draft member 20 which can be pivoted between the positions shown about a vertical pin 28 to allow the trailer to be towed offset for pick up operations or behind the tractor for road transport. A pin in holes 116-120 retains the member in the various positions. When swung under a load support member 34 the draft member provides additional support for the trailer body and load.
Patent GB-1376155-A (GB)
Title: Sandwich panel
IPC: E04C2/24
Filed: 1971-10-28
Abstract: 1376155 Laminates KUREHA KAGAKU KOGYO KK 28 Oct 1971 [30 Oct 1970] 50262/71 Heading B5N [Also in Divisions C1 and C3] A material comprises hollow carbon microspheres bonded together with a thermosetting resin or a silicate based bonding agent, the microspheres having a diameter of 30-1000 microns and a wall thickness of from 10-100 microns. The resin may be a phenol resin, a urea resin, a melamine resin, a xylene resin, an epoxy resin, an alkyd resin, an unsaturated polyester resin, a silicone resin, a furan resin, or a resin obtained by polymerizing an unsaturated hydrocarbon obtained from petroleum. The silicate based bonding material may be water glass or cement. The material may be made by mixing the microspheres and the bonding material, and shaping the material so as to achieve the desired bond. The material so formed may be used as the core compound in a sandwich panel, in which it is covered with and adhered to external layers of a covering material which may be sheets of glass fibre reinforced plastics, glass cloth, a glass fibre mat or a plate of Fe, Al or asbestos. In the only example a phenol resin is used for the core material in proportion 70% microspheres, 30% resin by weight.
Patent GB-1402403-A (GB)
Title: Detergent compositions
IPC: C11D1/72
Filed: 1973-10-30
Abstract: 1402403 Detergent compositions PROCTER & GAMBLE CO 30 Oct 1973 [31 Oct 1972] 50353/73 Heading C5D Detergent compositions comprise a ternary mixture consisting of (a) 0À5% to 15% by weight of the mixture of a C 2  to C 4  alkylene oxide condensation product of molecular weight 2000 to 40,000 which is a homopolymer or a copolymer of the alkylene oxides; (b) 40% to 90% by weight of the mixture of a water-soluble, organic, anionic surface active agent; and (c) 9À5% to 45% by weight of the mixture of the condensation product of a C 8  to C 18  monohydric alcohol with 3 to 15 moles of ethylene oxide per mole of alcohol. Component (a) may be a polyethylene glycol or a co-opolymer of ethylene oxide and proplyene oxide. Component (b) may be a sodium linear C 12  alkyl benzene sulphonate, sodium tallow alkyl sulphate, sodium 2-acetoxy-tridecane-1-sulphonic acid, sodium methyl-α-sulphopalmitate, sodium B-methoxyoctadecyl-sulphonate, sodium coconut alkyl ethylene glycol ether sulphate or the sodium salt of the sulphuric acid ester of the reaction product of one mole of tallow alcohol with three moles of ethylene oxide. A non- phosphate detergent builder may be present in an amount of 5% to 80% by weight of the detergent composition. Up to 20% by weight of sodium tripolyphosphate may also be present. The compositions, which may be in granular form, are effective in removing illitetype clays from textiles and may be dissolved in water and used at a concentration of from 0À03% to 1À5% by weight at a temperature of 40‹ to 70‹ C.
Patent GB-1094360-A (GB)
Title: Process for the preparation of extrudates from hydrogels
IPC: B01J2/20
Filed: 1964-12-16
Abstract: Extrudates are produced from inorganic oxide hydrogels (i.e gels, precipitated gels, hydrous oxide precipitates or combinations thereof) by subjecting an inorganic oxide hydrogel-containing pumpable feed slurry having a continuous water phase and a solids content of from 4 to 25% by weight of the slurry to a shearing action sufficient to eliminate the fluidizing effect of the continuous water phase and to produce a material of substantially the same liquid to solids ratio which in the form of a cylindrical extrudate of 1/4 in. diameter will not deform substantially as to its circular cross-section whilst supported on a flat horizontal surface with its cylindrical axis substantially parallel to this surface, and thereafter extruding the hydrogel subjected to this shearing action, e.g. through circular orifices of from 1/16 to 1/2 in. in diameter. The hydrogel may be of alumina, silica, silica-alumina, silica-magnesia, silica-alumina-magnesia, magnesia, vanodia or zirconia. A silica-alumina hydrogel preferably has from 5 to 40% of alumina based on the ignited weight of the hydrogel and a slurry solids content from 4 to 10% by weight of the slurry. A silica-magnesia hydrogel preferably contains from 20 to 30% of magnesia based on the ignited weight of the hydrogel and a slurry solids content of from 7 to 15% by weight of the slurry. The hydrogel may be promotor impregnated for use as a catalyst with metals or metal oxides, e.g. copper, silver, gold, Group VB metals, Group VIII metals such as platinum, palladium, rhodium, nickel and cobalt, transition metal oxides of Group VI such as chromium, molybdenum and tungsten oxides. Fluorine and chlorine are also listed as promoters. The shearing of the hydrogel may be accomplished by passing it through a spring-pressed or spring-loaded homogenizing valve. The extrudates are subsequently dried in stages at 150 DEG  to 350 DEG F., the first stage approximately doubling the solids content, and then calcined at up to 1100-1200 DEG  F.
Patent GB-1094425-A (GB)
Title: Improvements in or relating to smoking pipes
IPC: A24F1/00
Filed: 1966-11-16
Abstract: 1,094,425. Smokers' pipes. O. G. A. LUNDBLAD. Nov. 16, 1966, No. 51365/66. Heading A2M. The joint between the bowl 3 of a smokers' pipe and its stem 2 comprises a sleeve 6 carrying two axially directed guide and support members 8, (8<SP>1</SP>) which is inserted in a bore 5 in the bowl 3 and locked in position by a bushing (10) within a smoke channel 4. A filter may be housed within the stem.
Patent GB-1455283-A (GB)
Title: Liquid detergent compositions
IPC: C11D1/831
Filed: 1973-11-06
Abstract: 1455283 Anhydrous liquid detergent composition WITCO CHEMICAL CORP 6 Nov 1973 [29 Nov 1972] 51504/73 Addition to 1114359 Heading C5D A stable, homogeneous, polyfunctional, substantially 100% active liquid detergent composition consists essentially of (A) 30-90% by wt. of an ethanolamine salt of an alkyl benzene- and/or alkyltoluene-sulphonic acid of which the alkyl group contains 8C-18C; (B) 5 to 35% wt. of a normally liquid water-soluble, non- ionic polyoxyethylene-polyoxypropylene glycol condensation product surfactant and (C) 5 to 35% wt. of a fatty acid monoethanolamide, diethanolamide or isopropanolamide derived from a fatty acid which contains 10 to 16 C atoms. (B) is preferably a surfactant having a molecular wt. not exceeding 7500 and is prepared by reacting ethylene oxide with a polyoxypropylene glycol having a molecular wt. of at least 950. In the method described for preparing the composition, the ethanolamine salt (A) is prepared in situ. A substantially homogeneous solution of the surfactant (B) and one component of the salt (A), preferably ethanolamine or diethanolamine, is prepared, the other component preferably the alkyl benzene- and/or alkyl toluenesulphonic acid is added slowly with agitation at a temperature not more than 100 C. (preferably below 50 C.) to form the salt (A), and then adding to the resultant mixture under conditions of agitation the alkanolamide (C).
Patent GB-1127649-A (GB)
Title: Improvements in or relating to a cutter head for dry shavers
IPC: B26B19/04
Filed: 1965-12-07
Abstract: 1,127,649. Dry shavers. PAYER-LUX EDUARD PAYER. 7 Dec., 1965 [9 Dec., 1964; 5 Feb., 1965], No. 51922/65. Heading B4B. A cutter head for dry shavers comprises a perforated stationary blade 1, which is held on the cutter head body by means of screws 5, a blade-carrying frame 3 which is detachably connected to the cutter head body, a blade 2 which is reciprocable in contact with the blade 1, and two resilient elements, e.g. springs 8, each having one end secured to the blade 2 by a pin 9 and the opposite end connected to a slide member 10 bearing on a slide face 12 provided on the frame 3, the face 12 being formed with bulges 13. Preferably, the slide member 10 consists of plastics material and the slide face 12 of steel or graphite bronze. The ends of each resilient element may be smaller in diameter than the intermediate portion thereof.
Patent GB-1437060-A (GB)
Title: Preparation of 4-pyridylthioacetic acids
IPC: C07D213/89
Filed: 1974-12-02
Abstract: 1437060 Pyridinethioacetic acids OCEANDENO BV 2 Dec 1974 [13 Dec 1973] 52119/74 Heading C2C Pyridinethioacetic acids of formula where X is H, halogen, C 1-4  alkyl or C 1-4  alkoxy and Y is H, C 1-4  alkyl or C 1-4  alkoxy are prepared by reacting with HSCH 2 CO 2 R where R is H or C 1-4  alkyl to form and when R is H esterifying the product, reducing this, with or without isolation to and saponifying followed by acidification. 4 - Pyridylthioacetic acid - N - oxide and its methylester are isolated intermediates.
Patent GB-1098250-A (GB)
Title: An n-path frequency translation system
Inventor: BARBER DONALD ROBERT
IPC: H03H19/00
Filed: 1965-12-09
Abstract: 1,098,250. Amplitude modulation; frequencychanging circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 2, 1966 [Dec. 9, 1965], No. 52293/65. Headings H3F and H3R. A frequency translation system of the kind described in Specification 1,081,240 is modified in that the input and output modulators are unbalanced. In Fig. 6, " INPUT I " is passed through a low-pass filter 7 to the rotor of an N position switch SW3, the contacts of which are connected through respective filters 2 to an output N position switch SW2 the rotor of which is connected to an output filter. A second input feeds a second switch SW4, rotating in the opposite direction to switch SW3 at the same angular frequency w 1 . If the output switch SW2 rotates at angular frequency w 2  it is shown that the two inputs are transposed, one being erect below the frequency # 2  corresponding to w 2  and the other inverted above f 2 , Fig. 7 (not shown). Transistor circuit.-A practical circuit is shown in Fig. 8, wherein a single input is fed in parallel to three transistors VT1 which are controlled by a reference signal so that they cut-off in turn; at any instant one is non- conducting and the other two conducting. The output switch is similarly realized by three transistors VT2. With this system the frequency band must be limited to the switching frequency; the bandwidth may be doubled by using square waves staggered by one-third of cycle as the switching waveforms for VT1, Fig. 10 (not shown).
Patent GB-1192950-A (GB)
Title: Apparatus for Trimming and Splicing Wires
Inventor: KINDELL COLIN DAVID
IPC: H01R43/04
Filed: 1967-11-21
Abstract: 1,192,950. Making electrical connections; stamping; shearing. AMP Inc. 22 Oct., 1968 [21 Nov., 1967], No. 52917/67. Headings B3A, B3Q and B3W. [Also in Division H2] Apparatus for trimming and splicing wires comprises a die 3 movable towards a die 4 to crimp a U-section connector 87 to a pair of wires (X, Y), Fig. 2 (not shown), a pair of wire trimming edges 39, 41 extending lengthwise of the path of movement of the die 3, and a pair of associated rotatable blades 32, 36 for trimming the wires between the ends of the connector. As shown, the lower, stationary die 4 has curling surfaces 5 for closing the limbs of the connector, and the upper die 3 is flat and operated through a one-revolution-clutch, by an A.C. induction motor. Feeding.-A strip of connectors, joined by bridges of insulation, is advanced in steps by a pivoted lever 18 having a peg 24 which projects through a slot 51 in a feed channel to engage holes in the bridges. A spring-pressed plate (not shown) pressing the connectors upwardly into the channel is deflected downwardly as the die 3 engages the end connector, thus freeing the strip of connectors from the peg 24 and allowing the feed arm 18 to make a return stroke through contact between a cam 14 on the die 3 and a follower 16 on the arm 18. When the die 3 has returned after crimping, the cam 14 permits a feed stroke of the arm by the arm's return spring 22. An end 48 of the feed channel engages behind (Fig. 2) a stop-plate 44 for the connectors and forms a passage 50 for the die 3. Shearing.-The ends (XE, YE) of wires in passages 60, 61 in rubber &c. guides 52, 54 extend beneath the effective zone of the adjacent shear blades, upwardly to be trimmed by the opposite blades as these are turned about a pivot 34 by pins 21 projecting beneath the die 3. A stationary plate 26 has a projection 30 against which the insulation bridges are sheared by the die 3 as this lowers a connector towards the die 4. In various modifications, the die 3 may include a connector guide which is retractable into the die against spring-pressure. The guide may bias the connector towards the shearing block 40, the press may be disposed horizontally or at an angle to the horizontal and the die 4 may be uppermost. The guide blocks 52, 54 may be of rigid material and movable away from the die 3, and the press may be operated by fluid-pressure or through a linkage, by one or more rotatable handles. The wire-trimming blades may be turned about different axes, preferably for use with offset trimming edges, so that the wires are not crossed. A flat lower die may be used to which the connectors are fed, the shear plate 26 being fixed to the movable die, and the feed mechanism replaced by one for engaging upstanding tongues 66 on the connectors. The apparatus may be a hand tool or mounted on a rack or bench.
Patent GB-1268524-A (GB)
Title: Organo aluminium compounds
IPC: C25B3/13
Filed: 1969-10-29
Abstract: 1,268,524. Organoaluminium compound containing Al in a ring; reaction-products with cyclic ethers. ETHYL CORP. 29 Oct., 1969 [29 Oct., 1968; 5 May, 1969], No. 53029/69. Headings C2C and C2J. [Also in Division C5] A non-ionic organoaluminium compound containing an olefinically unsaturated ring having Al as one atom of the ring, and particularly a compound containing an aluminacyclopent-3- ene group, is prepared by (a) heating together at 100-180 C. aluminium (which may be activated), a compound having a conjugated diene group and a hydrocarbyl aluminium hydride in the presence of a Lewis base capable of complexing with the non-ionic organoaluminium compound without undergoing excessive cleavage or (b) heating together at 100-180 C. aluminium, a conjugated diene, an alkali metal aluminium tetrahydrocarbyl and hydrogen in the presence of the Lewis base. The organoaluminium compound may have the formula where R is C 1-18  hydrocarbyl, R<SP>1</SP> is H, alkyl or alkenyl and R<SP>11</SP> is H or alkyl, and is normally formed as a complex with a Lewis base such as a tertiary amine, dialkyl ether, 6-membered ring cycloparaffinic monoether or 5- or 6-membered ring cycloparaffinic diether. The hydrocarbyl aluminium hydride used in process (a) may be R 2 AlH where R is alkyl, aryl, cycloalkyl, alkenyl, aralkyl or alkaryl and the tetrahydrocarbyl reactant used in process (b) may particularly be a sodium aluminium tetra-alkyl or similar Li, K, Rb or Cs compound. The latter reactant may be formed "in situ" by introducing alkali metal and Al trihydrocarbyl into the reaction zone. Either process may be effected in an inert hydrocarbon medium or in the Lewis base as solvent. Branched-chaih alkenols are prepared by reaction of an organoaluminium compound of the invention with a cleavable cycloparaffinic monoether having a 3, 4 or 5 membered ring and hydrolysis of the reaction product. Examples describe the following preparations: Example (IX), 5,5- and 5,6-dimethyl-6-heptene-1-ol by hydrolysis of the reaction product of tetrahydrofuran and 1-isobutyl-3-methyl-aluminacyclopent-3-ene; (X), 1-chloromethyl-3,3 (and 3,4)-dimethyl-4-pentene-1-ol by hydrolysis with dilute aqueous -HCl of the reaction product in dioxane of epichlorohydrin and 1-isobutyl-3- methylaluminacyclopent-3-ene; (XI), 2,2-bis- (chloromethyl) - 4,4(and 4,5) - dimethyl - 5- hexene-1-ol and 2,2,3-trimethyl-5,5-bis-(chloromethyl)tetrahydropyran by hydrolysis of the reaction product of the above organo-aluminium and bis(chloromethyl)oxetane; XII, 1,5,5- and 1,5,6- and 4,5,6-trimethyl-6-heptene-1-ol and 1,5,6-trimethyl-5-heptene-1-ol by hydrolysis of the reaction product of the above organoaluminium and 2-methyltetrahydrofuran.
Patent GB-1241816-A (GB)
Title: An arrangement for connecting capacitors to an a.c. voltage
IPC: H03K17/725
Filed: 1968-11-11
Abstract: 1,241,816. Modifying reactive characteristics. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 11 Nov., 1968 [10 Nov., 1967], No. 53395/68. Headings H2H. [Also in Division G3] A device for connecting a capacitor across an A.C. voltage comprises a pair of anti-parallel rectifiers in series with the capacitor, at least one of the rectifiers being switched on by a control pulse when the voltage across it is zero. In the embodiment shown in Fig. 2, one of the rectifiers is an uncontrolled diode D, so that if the mechanical switch Tr is closed, the capacitor will charge up to the peak A.C. voltage. The anti-parallel controlled rectifier V 1  is now switched on when the supply voltage reaches a peak, i.e. the voltage across the rectifier is zero, and the resultant switching leads to no surging or oscillations. In an alternative embodiment, Fig. 1 (not shown), both rectifiers are controlled. A mechanical switch S, across the rectifiers, may be closed after the rectifiers are fired so as to avoid internal losses. The switch S will be opened before the rectifiers are switched off. The circuit shown in Fig. 2 may be adapted for use in balancing a 3-phase system, Fig. 3 (not shown), and a number of such circuits may be connected to a network to compensate varying inductive currents, e.g. to improve the power factor of an asynchronous motor, Fig. 4. In such a system, where the motor may be frequently switched on or reversed, three capacitor groups a, b, c, stepped in size, may be used. A power factor detector feeds the actual value of the factor to a regulator which compares it with a reference value and delivers appropriate signals to control circuits St a , St b , St c . In order to compensate for slight oscillations which may be introduced if the switching-on of the rectifiers does not occur at the correct moment, small inductances may be connected in series with each capacitor.
Patent GB-1488139-A (GB)
Title: Lubricating compositions
IPC: C10M169/00
Filed: 1974-12-12
Abstract: 1488139 Lubricants SNAM PROGETTI SpA 12 Dec 1974 [20 Dec 1973] 53819/74 Heading C5E [Also in Division C2] A lubricating composition comprises a mineral or synthetic oil and dissolved therein as antioxidant one or more compounds having the formulµ where R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> may be the same or different, and each is hydrogen, alkyl, aryl, cycloalkyl, alkaryl, aralkyl, arylamino or alkoxyarylamino. In the examples, five compounds of these formulµ are prepared and are added to an SAE 30 mineral oil and to octyl trimethyladipate and compared with known antioxidants. The additives may be used together with known  additives and the composition may be used as an engine oil, an hydraulic or transmission fluid or as an industrial or marine gear oil.