baber/WOPTO huggingface dataset:
Patent GB-984254-A (GB)
Title: Diode parametric amplifier
Inventor: AITCHISON COLIN STUART
IPC: H03F7/04
Filed: 1962-11-30
Abstract: 984,254. Parametric amplifiers. MULLARD Ltd. Nov. 30, 1962, No. 45392/62. Heading H3B. In a diode parametric amplifier, signal and pumping frequencies are transmitted respectively over a coaxial line E and a tuned waveguide A to a junction where a voltage dependent diode capacitor D is connected across the coaxial line adjacent the end of the central conductor which forms an energy coupling probe M. The equivalent circuit is shown in Fig. 3. The necessary biasing circuit is not shown. The diode D (equivalent to LD, Cv, RD) and the neck K (equivalent to LK) form a series resonant circuit across the signal source. The neck K effectively isolates the diode from the signal source at the idler frequency. A parallel circuit including the diode, the diode holder J of capacitance CD and stray capacitance Cs between the probe and the outer conductor is resonant at the idler frequency. A frusto-conical part H of the central conductor serves as an impedance transformer. A disc L, Fig. 2, may be used to obtain a convenient value of stray capacitance Cs. For a signal frequency as low as 400 Mc/s. and an idler frequency of 7 to 8 Gc/s., the transformer H is unnecessary. The central conductor G of Fig. 6, is linked to the probe by an inductor N comprising two turns of wire on a short cylinder P of low-loss dielectric material.
Patent GB-454456-A (GB)
Abstract: 454,456. Calculating apparatus. AKTIEBOLAGET EKONOMIREGISTER, 25, Birger Jarlsgatan, Stockholm. July 19, 1935, No. 20629. Convention date, July 21, 1934. [Class 106 (i)] A machine for keeping accounts as described in Specification 360,842 is modified by dividing some or all of the add and subtract totalizers into two adding totalizers so that the increase and decrease in the various business transactions may be registered separately. Totalizers for the balance and turn-over are also provided. In the form shown in Figs. 1 and 2, sets of keys 1-8 and x1-x8 are provided for setting mechanism to control the selection and engagement of the totalizers with the differential actuating mechanism. The division of the add and subtract totalizers into two adding totalizers is effected by displacing axially or radially one of the sets of wheels ; the wheels are displaced axially as at R+ and R-, Fig. 2. The keyboard has a number of control keys T+ , T-, S-, S+ , &c., which are employed in the operation of transmitting the amounts introduced into the totalizers into an add and subtract totalizer to obtain the balance of any of the transactions. The machine is provided with three printing mechanisms TA, TB, and TC.
Patent GB-1126740-A (GB)
Title: Steering system for vehicles with two steerable tractor units
IPC: B60P3/40
Filed: 1966-10-12
Abstract: 1,126,740. Steering articulated vehicles. CATERPILLAR TRACTOR CO. 12 Oct., 1966 [23 Oct., 1965], No. 45627/66. Heading B7H. A steering system for a vehicle consisting of two tractor units 11, 12 articulately connected to the ends of a body 10 comprises hydraulic steering rams for pivoting each tractor relative to the body, master and slave hydraulic steering control circuits in each tractor unit, and means in each tractor unit which are operable to establish master steering control from that tractor unit and to condition the other tractor unit for slave steering control. Similar steering control means on each tractor includes a steering wheel connected to steering gear 50 which actuates a control valve 52 for supplying the steering rams 15 from a reservoir 53 and is connected by follow-up linkage 67, 66, 62, 64 to a bracket 16 on the body 10. Each steering wheel 25 is lockable by a band brake 27 applied by a spring 28 and released by hydraulic pressure supplied to a cylinder 29 through an hydraulically-actuated valve 43 associated with accelerator and brake valves 36, 38 in such a way that depression of the accelerator pedal in the tractor from which control is to be effected locks the steering wheel in the slave tractor, and depression of the brake pedal then releases the steering wheel in the master tractor. Valves 70, 71 actuated by an extension 69 of a lever 67 on the steering gear 50 of the master tractor are connected through a manually-controlled valve 60 providing for the selection of normal or crabwise steering or steering by one tractor only to an extensible link 66 in the follow-up linkage of the slave tractor, whereby the link 66 is extended or retracted by fluid from the valves 70, 71 to actuate the slave steering valve 52 through the slave steering gear 50. Springs 82 in the follow-up linkage and one-way valves in the pistons of the steering rams 15 permit change in length of the linkage and rams when the body 10 is raised or lowered relative to the tractors by means not shown. In Fig 10 (not shown) the tractor wheels are differentially braked to augment steering by the rams 15 when the ram pressure exceeds a predetermined value.
Patent GB-1246824-A (GB)
Title: Disazo dyestuffs containing cyano groups
Inventor: GOTTSCHLICH ALOIS
IPC: C09B43/42
Filed: 1968-10-01
Abstract: 1,246,824. Disazo dyes. FABBENFABRIKEN BAYER A.G. 1 Oct., 1968 [10 Oct., 1967], No. 46517/68. Heading C4P. The invention comprises disazo dyes, which are free from sulphonic acid groups, of formula A<SP>1</SP>-N =N-B<SP>1</SP>-N = N-K wherein A<SP>1</SP> is an aromatic-carbocyclic or -heterocyclic radical and B<SP>1</SP> is an aromatic-carbocyclic radical, at least one of A<SP>1</SP> and B<SP>1</SP> carrying a cyano group in an o-position to the azo group and K is the radical of a coupling component with the proviso that if A<SP>1</SP> is derived from 1-amino-2- cyano-4-nitrobenzene or 1-amino-2-cyano-5- chlorobenzene and B<SP>1</SP> is free from cyano groups, K is free from ammonium groups or groups. The dyes are prepared by treating a corresponding halogen-substituted dye with a metal cyanide as described in Specification 1,125,683. The dyes may be used to colour hydrophobic fibres, in particular polyester fibres in reddish-blue, blue and violet shades.
Patent GB-980760-A (GB)
Title: Rotary mechanical seal
IPC: F16J15/38
Filed: 1963-11-26
Abstract: 980,760. Mechanical seals. CRANE PACKING CO. Nov. 26, 1963 [Dec. 3, 1962], No. 46623/63. Heading F2B. A mechanical seal for a rotary shaft 10 comprises a sealing ring 14 which rotates with the shaft, is urged axially into sealing contact with a fixed seating 23 on the shaft housing 12 and is sealed to the shaft by two wedge-shaped secondary sealing rings 17 and 18 one, 17, of which effects a seal between the ring 14 and a retainer ring 15 secured to the shaft whilst the other, 18, effects a seal between the retainer ring and the shaft. The rings 17 and 18 are pressed against tapered surfaces 29 and 30 on the ring 14 by springs 40 and 43 respectively alternating on the same pitch circle, the springs 43, abutting a washer 44 having holes 47 therein through which the springs 40 pass to abut a washer 41. The springs 40, 43 also serve to urge the ring 14 against the seating 23. Washers 41 and 44 are located by pins 49 fitted in the ring 14 and extending through holes 51, 52 in the washers. Indentations 53 in an extension 27 of the ring 15 engage axial recesses 54 in the ring 14 which is held captive during assembly by a split ring 56. The rings 17 and 18 are of polytetrafluorethylene.
Patent GB-1218970-A (GB)
Title: Dyeing and printing process
Inventor: SCHWEIZER AUGUST
IPC: D06P3/24
Filed: 1968-10-03
Abstract: 1,218,970. Dyeing synthetic polyamides. SANDOZ Ltd. 3 Oct., 1968 [25 Oct., 1967; 25 March, 1968], No. 46920/68. Heading D1B. Synthetic polyamide fibres are dyed and printed with a dye of formula I in which R is a methyl or ethyl group, or of formula II or their water soluble salts. Conventional dyeing processes are employed, in Example 11 a mixture of nylon yarns are dyed with one of the above dyes and a basic dye to give a yellow/blue product.
Patent GB-1203670-A (GB)
Title: Method of draining cheese curds and of forming cheese
Inventor: KOOPMANS HANS
IPC: A01J25/11
Filed: 1968-10-03
Abstract: 1,203,670. Cheese curds. H. KOOPMANS. 3 Oct., 1968 [4 Oct., 1967], No. 46972/68. Heading A2B. A method of draining cheese curds to form cheese comprises the steps of providing a vessel having at least one vertical perforated pipe disposed therein, and a venting duct filling the vessel with whey so as to vent any air present, supplying the contents of a cheese vat or and container into the pipe or pipes such that the curds are deposited therein, the whey being expelled via the perforations and flowing through the venting duct so that no air can enter, draining the remaining whey through an outlet duct, and removing the drained curd from the pipe or pipes by opening the lower end thereof to allow the curd to sink out and into an associated mould provided therebelow. The curds may be compressed in the pipe after removal of whey from the vessel by a piston.
Patent GB-987167-A (GB)
Title: Apparatus for depositing articles into containers
IPC: B65B5/12
Filed: 1963-11-28
Abstract: 987,167. Packaging machines. MASCHINENFABRIK WINKLER, FALLERT & CO. A.G. Nov. 28, 1963 [Dec. 5, 1962], No. 46977/63. Heading B8C. Chocolates are supplied singly from a shoot 66, by means of an electrically-controlled gate 104, to a positioning member 67 held stationary on an adjustable plate 32 apertured at 70. A stop 53, when withdrawn by a solenoid 54, allows rotation of an arm 52 connected to a rotary pusher 64, the stop returning to arrest the arm when the pusher moving the chocolate, reaches the aperture 70, after passing above the stationary member 67. The arm 52 is rotated by a beltdriven pulley 36, the belt slipping on the pulley when the arm is held by the stop 53. The aperture 70 is cleared to allow the chocolate to fall into a box 76 when the box, or alternatively a conveyer 74 on which it is carried, operates a switch; a rotary magnet 78 is thereby energized to drive a shaft 88 so turning a blocking member 68. The member 68 is returned, and the stop 53 again lifted, as the box leaves the filling position. The machine is adjustable to enable the radial position of the apertured plate 32 to be varied; a screw 96 enables an adjusting member 22 to be fixed, a scale 100 on the member 22 co-operating with a scale 102 on a flange 14. An arm 10 carrying the stationary parts of the machine is itself longitudinally adjustable. Movement of the gate 104 may be controlled by the member 68 as it opens the aperture 70. In order to fill each position in the box 76 a number of machines are arranged in sequence each one set to fill a different position. The plate 32 may be vertically movable.
Patent GB-469938-A (GB)
Abstract: 469,938. Electromagnetic relays. NALDER BROS. & THOMPSON, Ltd., and LIPMAN, C. L. Feb. 3, 1936, No. 3179. [Class 38 (v)] [Also in Group XXXVI] A moving-coil instrument has the coil arranged to embrace a ring-shape or part ring- shape polepiece and to move in the gap between the polepiece and a further pole provided by a fixed coil, the axis of rotation of the moving- coil being coincident or parallel with the axis of the fixed coil. The instrument can be constructed as an ammeter, voltmeter, ratiometer, power meter, frequency meter or relay. Fig. 1, (Prov.) shows the moving-coil M embracing a polepiece Cm, the fixed winding F being mounted on a core Cf carrying a polepiece Cs. The core and polepieces are carried on a soft-iron carcase C. The movement comprising spindle, damper D, coil M, pointer and other parts can be removed as a whole with a bracket B secured to the pole Cm. The parts Cm, Cf, Cs and C may be cast of low hysteresis high permeability nickel-iron, or they may be laminated or of iron dust with a binder. Stops W with felt, cork or rubber washers limit the coil movement. Shading rings or flux lagging coils may be provided, and a fixed coil may be mounted on the pole Cm for frequency compensation. In Fig. 1, (Comp.), the parts are mounted in a ring O of insulating material having a partition Q. The fixed coil F has a core Cf which may be of insulating material, or it may have an air core. A large damper D makes the instrument dead-beat. The core Cf may be oval or triangular, and the disc Cs may be magnetic or non-magnetic. The fixed coil F, Fig. 4 (Comp.), is wound on a hollow core Cf, and the damper D moves in a segmental chamber formed in part by the surface of the core. Fig. 6 (Comp.), shows a ratiometer, two fixed coils F1, F2 being provided and co-operating with one or two moving-coils. The partition Q can be arranged to give a larger pointer movement than that shown. The part Cm may be formed as a permanent magnet to give initial bias or to increase sensitivity.
Patent GB-1189939-A (GB)
Title: Improvements in or relating to the manufacture of Rod-like Articles having Cores of Fluent Materials
IPC: B65B39/00
Filed: 1968-10-07
Abstract: 1,189,939. Packaging in tubes. AFRICAN EXPLOSIVES & CHEMICAL INDUSTRIES Ltd. 7 Oct., 1968 [12 Oct., 1967], No. 47426/68. Heading B8C. [Also in Divisions F2 and F3] Apparatus for manufacturing a tubular casing having a core of fluent material, e.g. explosive powder, comprises an inner die 10 having a tapering bore 12 with an outlet 14 and which is located coaxially within an outer die 18 having an outlet 20 which is not greater than the outlet 14 and which is in alignment with the latter, the inner die 10 being axially adjustable with respect to the outer die 18 to vary the distance between the outlets 14, 20, and a mandrel 32 which is hollow to feed material into the inner die and which is spaced from the inner die 10 to provide an annular passage for forming a strip of flexible material into a tubular casing. The weight per unit length of the casing varies according to the spacing of the orifices 14, 20 the spacing being regulated by means of a collar 22 on the outer die which collar has two helical faces 26, 28 with notches 28, and laterally projecting lugs 30 on the inner die 10 which lugs selectively engage a pair of diametrically opposed notches 28.
Patent GB-1208905-A (GB)
Title: Thermoset water-in-oil emulsions
IPC: C08F2/22
Filed: 1967-10-19
Abstract: 1,208,905. Water-in-oil polyester emulsions. ASHLAND OIL & REFINING CO. 19 Oct., 1967 [19 Oct., 1966; 5 May, 1967], No. 47570/67. Headings C3C and C3P. Thermoset water-in-oil emulsions in which the oil phase is copolymerized and the water phase is retained as discrete droplets dispersed throughout the polymerized oil phase are prepared by (A) adding water to a polymerizable material which constitutes the oil phase of the emulsion comprising (a) an unsaturated polyester of an α,#-ethylenically unsaturated carboxylic acid and (b) a copolymerizable solvent and an emulsifier having an HLB number of from 2 to 8 which is a glycerolysis product of vegetable oils, a saturated mono- and di-glyceride ester of stearic acid, a saturated mono-glyceride of stearic acid, or mixtures thereof, (B) agitating the resulting mixture to form a stable water-in-oil emulsion, and (C) curing the oil phase of the emulsion to give the thermoset water-in-oil emulsion. The term " water " includes aqueous solutions of non- interfering organic and inorganic materials as well as impure solutions consisting predominantly of water. The HLB number, i.e. the hydrophile-lipophile balance, is as defined by Griffin (J. Soc. Cosm. Chem. 1949, 311). The thermoset emulsion may be dehydrated, e.g. by contacting the water present in the emulsion with azeotroping amounts of an azeotrope-forming, solvent to give a cellular product. The polyesters used in the examples were prepared from propylene glycol, maleic anhydride and isophthalic anhydride, the solvent was styrene, the catalyst benzoyl peroxide paste and the promoter dimethyl toluidine.
Patent GB-1450694-A (GB)
Title: Circuit for detecting phase unbalance in a three phase supply
IPC: H02H3/13
Filed: 1973-10-11
Abstract: 1450694 Phase unbalance protection CANADIAN GENERAL ELECTRIC CO Ltd 11 Oct 1973 [28 Dec 1972] 47577/73 Heading H2K A phase unbalance protective system comprises three current to voltage transducers (Fig. 1, not shown) providing signals to halfwave rectifiers 30A, 30B, 30C, and three differential integrating circuits such as 34A, 35, 36A, 38A, 39A, 45, 46, 145, 146 which each receive two of the half-wave signals and provide D.C. output at 47A, 47B, 47C, proportional to the input signal difference. The unidirectional sum of these signals is then selected to be amplified at 53 and part of the resultant signal is fed to an amplifier 58 controlling a transistor 60 to provide a current sink for D.C. provided to a time delay circuit 64, 65 so that when the transistor 60 conducts or due to imbalance signal from amplifier 58 capacitor 64 changes to a voltage representing the imbalance and this voltage controls threshold indicating and tripping circuits through diodes 79 and 79A.
Patent GB-1281226-A (GB)
Title: Paper machine press section
IPC: D21F7/00
Filed: 1969-09-26
Abstract: 1281226 Papermaking BLACK CLAWSON CO 26 Sept 1969 [27 Sept 1968] 47598/69 Heading D2A A paper machine press section comprises a main outer frame including substantially vertical side frame members laterally spaced to receive the felt therebetween, an inner frame supported between the side members, a plurality of rolls mounted on the inner frame for supporting and directing the felt, pivot means connecting one side of the inner frame to one of the side frame members, means releasably securing the other side of the inner frame to the other side frame member, the inner frame being sufficiently spaced from the outer frame to provide for tilting of the inner frame, and means spaced from the securing means for elevating the inner frame relative to the outer frame after releasing the securing means. This motion provides a gap in the framework to permit the insertion of a new felt after cutting and removing the old felt. The rolls may comprise a suction roll, having means for connecting a drive to the end of the roll at the pivoted side of the section, and a suction conduit supported by the inner frame within the felt, the conduit being connected to the end of the roll at the releasable side of the frame, and, at the pivoted side, flexible means connecting the conduit to a suction line. One or more of the rolls may be press rolls coacting with second press rolls positioned outside the felt and supported by the outer frame. Suction press rolls within the felt may be provided with savealls. A felt suction cleaning tube may be provided.
Patent GB-1185418-A (GB)
Title: Improvements in or relating to the Manufacture of Polyurethane Solutions and of Shaped Articles therefrom.
IPC: C08G18/08
Filed: 1968-10-09
Abstract: 1,185,418. Coated sheet materials. KALLE A.G. 9 Oct., 1968 [10 Oct., 1967], No. 47858/68. Heading B2E. [Also in Division C3] Sheet materials are coated with a polyurethane solution prepared by: (a) first reacting an excess of polyisocyanate with at least one polyester or polyether polyester obtained by reacting an aliphatic dicarboxylic acid with: in which R is H, Me, Et; y and z are each 1 or 2 and n is 0 to 12; (b) reacting the resultant NCO-terminated prepolymer with a chain extending low M.W. active hydrogen containing compound, optionally in a solvent, and adding solvent or more solvent during polyaddition step (b) until a predetermined viscosity is obtained (see Division C3). In an example a fleece of synthetic fibres (bound with butadiene acrylonitrile copolymer) is coated with a solution obtained by reacting an adipic acid/ dibutylene glycol polyester milk excess diphenylmethane-4, 4'-diisocyanate followed by chain extension with water in solution in dimethylformamide. The resultant coated structure is microporous.
Patent GB-1283787-A (GB)
Title: Liquid analyzer apparatus
Inventor: RAY R A
IPC: G01N35/00
Filed: 1970-04-09
Abstract: 1283787 Electro-chemical analysis BECKMAN INSTRUMENTS Inc 9 April 1970 [15 April 1969] 48107/70 Divided out of 1283786 Heading G1N [Also in Division G2] A sensor 20, e.g. for a polarographic, conductomeric or optical determination, is housed in a bore 21 of an optionally transparent block 14 e.g. of hydrophobic plastics or metal lined with same, used in liquid analysis. As shown, the sensor 20 comprises a cathode or sensing electrode 146 e.g. of gold or rhodium, sealed in a glass or plastics body 148 and surrounded by an annular anode 150, e.g. of silver. A selectively permeable membrane 152, e.g. of polyethylene, polytetrafluoroethylene or silicone rubber is held on the anode by a rubber O-ring 154. An electrolyte such as KCl in a suitable gel is provided behind the membrane 152 to electrolytically join the electrodes.
Patent GB-1353496-A (GB)
Title: Preparation of dienes
IPC: B01J23/843
Filed: 1971-10-15
Abstract: 1353496 Oxidative dehydrogenation of paraffins to dienes PHILLIPS PETROLEUM CO 15 Oct 1971 [16 Oct 1970] 48125/71 Heading C5E [Also in Division B1] Dienes are prepared by the oxidative dehydrogenation of saturated hydrocarbons in a single stage by reaction of the saturated hydrocarbon with oxygen in the presence of a catalyst comprising (a) tin and (b) Bi, Co or Ni, all the metals being chemically combined with oxygen, and the atomic ratio of (a) : (b) being 3 : 1 to 1 : 3. The catalyst may be supported on SiO 2 , Al 2 O 3  or SiO 2 -Al 2 O 3  and may also contain up to 10 wt. per cent As or Sb, and/or up to 10 wt. per cent of an alkali or alkaline earth metal. The oxidative dehydrogenation may be carried out at 800- 1200‹ F. optionally in the presence of steam. Suitable feeds are C 4 -C 10  branched or unbranched paraffins. Preferred catalysts comprise the stannates of Bi, Co or Ni supported on Al 2 O 3 . An example describes the preparation of butadiene from butane.
Patent GB-1057257-A (GB)
Title: Stabilized master batches for polyurethanes
IPC: C08G18/00
Filed: 1963-07-26
Abstract: A polyhydroxy-alkylamine containing tertiary amino groups which is the reaction product of an alkylene oxide and a basic nitrogen compound and which has a hydroxyl number between 150 and 800 is used to stabilize a master batch to be mixed with a polyisocyanate for cellulated polyurethane production, said master batch comprising (1) a polyol which is the reaction product of a polyhydroxy compound containing 3 to 8 hydroxyl groups with an alkylene oxide; (2) a phosphorus-containing polyol oxyalkylation product which is prepared by reacting an alcohol containing 1 to 4 hydroxyl groups with an acid containing a phosphoryl or thiophosphoryl group or an anhydride thereof to form an acid ester and reacting this with a C2- 8 alkylene oxide (includes styrene oxide), and if desired (3) a blowing agent; (4) a surfactant; and/or (5) a catalyst of urethane formation. The polyhydroxyalkylamine may be derived from NH3 or a primary, secondary or tertiary amine.  The polyols (1) and (2) and the isocyanates are preferably those disclosed in the parent Specification.
Patent GB-1194389-A (GB)
Title: Cyclopropanecarboxylic Acid Esters and Insecticidal Compositions containing them
IPC: C07D333/28
Filed: 1967-10-24
Abstract: 1,194,389. Insecticides containing cyclopropanecarboxylic add esters. SUMITOMO CHEMICAL CO. Ltd. 24 Oct., 1967 [28 Oct., 1966; 9 Nov., 1966; 13 Jan., 1967; 6 Feb., 1967], No. 48296/167. Heading A5E. [Also in Division C2] Insecticidal compositions comprise thiophene derivatives of the general formula: where R 1  is a C 1-3  alkyl, or an alkenyl, alkadienyl, benzyl, furfuryl or 'thenyl group, or a halogen atom, each benzyl, furfuryl and thenyl group may be substituted in their nucleus with an alkyl group of 1-3C atoms; R 2  and R 3  are each H, halogen or alkyl groups or together form an alkylene group; and when R 4  is methyl  R 5  is methyl, but when R 4 =H R 5  is methyl, 2- methyl-1-propenyl, 2-methoxycarbonyl-1-propenyl or phenyl. (see Division C2 for preparation of these compounds). Other insecticides may also be present in the composition. Numerous Examples illustrate the preparation of oil sprays, aerosols, powders &c. Incorporating the novel insecticides such as 5-methyl-2-thenyl chrysanthemate, 5-benzyl-2-thenyl-2,2-dimethyl- 3-phenyl-cyclopropane-1-carboxylate and 5- benzyl-3-thenyl pyreterate.