baber/WOPTO huggingface dataset:
Patent GB-1226927-A (GB)
IPC: C08F220/44
Filed: 1969-09-05
Abstract: 1,226,927. Alternating butadiene/acrylonitrile copolymer. MARUZEN PETROCHEMICAL CO. 5 Sept., 1969 [5 Sept., 1968 (2); 10 Dec., 1968; 26 Dec., 1968], No. 44054/69. Heading C3P. Alternate copolymers are prepared by contacting butadiene and acrylonitrile in the liquid phase in the presence of a catalyst system comprising (a) aluminium chloride, stannic chloride or zinc chloride, (b) a vanadium or chromium compound and (c) an organic peroxide. In the examples the polymerization is carried out using aluminium chloride, zinc chloride or stannic chloride with benzoyl peroxide and CrO 2 Cl 2 , VOCl 3 ), VO(OC 2 H 5 ) 3  or triacetylacetanyl vanadium, using methylene chloride, toluene or heptane as a solvent.
Patent GB-1228069-A (GB)
IPC: A61K31/70
Filed: 1969-04-02
Abstract: 1,228,069. Cardenolide ethers. FARBWERKE HOECHST A.G. 2 April, 1969 [6 April, 1968], No. 17192/69. Heading C2U. The invention comprises compounds of formula wherein R 1  is x-H, #-H or #-OH; R 2 , R 3  and R 4  are each H or OH; and R 5  is C 1-3  alkyl; and their preparation by LiAlH 4  reduction of compounds of formula wherein R 6  is C 1-3  alkyl and R 7  is CH 3 , CH 2 OH or CHO. A starting material with R 7  = CHO yields a product with R 2  = OH. Compounds of Formula II are prepared from the corresponding 3-hydroxy steroids by reaction with appropriately substituted dihydropyrans. Compounds of Formula I are stated to possess inotropic, cardiovascular, diuretic and anti-diarrhoeal effects, and may be made up with carriers into pharmaceutical compositions for oral administration.
Patent GB-1229625-A (GB)
IPC: A43D100/02
Filed: 1968-05-16
Abstract: 1,229,625. Cutting and punching apparatus BIEDERMANN K.G. GEBR. 16 May, 1968 [22 May, 1967], No. 23289/68. Heading B4B. [Also in Division A3] A method of forming eye-less holes for laces in shoe uppers comprises the steps of cutting off a predetermined length of an adhesive coated strip of material from a roll 4, securing the cutoff length to the inside of the shoe uppers by heat and pressure and then punching holes through the upper and strip portion. The strip is fed by a roller feed mechanism 8, 9 between the knives 10, 14 of a scissor-type cutting device, the knife 14 being connected to a plate 17 adapted to be heated by an element 18 and to be moved downwardly so that the knife cuts off the strip portion and bonds it to the shoe upper; the temperature of the plate is controlled by a device 21. The feed device is controlled by a time clock in order that the length of cut-off strip may be set; a scale 19 is provided in order that the length of the strip can be measured. The punching apparatus includes a holder 28 carrying punches 33 and arranged to be moved downwardly so that the punches pierce the shoe upper which is supported on a member 29. The punches, which are heated, are provided with a concave surface (43, Fig. 4) so that after the holes have been pierced, the continued downward movement of the punches causes the edges of the holes to be formed with chamfered surfaces which are reinforced by the adhesive used to secure the strip portion to the upper.
Patent GB-1230155-A (GB)
IPC: H01C7/04
Filed: 1968-10-16
Abstract: 1,230,155. Thermistors. ITT INDUSTRIES Inc. 16 Oct., 1968 [20 Oct., 1967], No. 49009/68. Heading H1K. In a method of manufacturing a thermistor with an attached heating resistance, a body 1 of semi-conductor material is prepared of a predetermined thickness and resistivity and a layer 3 of glass is deposited on one surface and heated to fuse with the body, after which a metallic resistance layer 5 forming the heating element is applied. The semi-conductor body may be of silicon or germanium, but if germanium is used an additional layer 2 of silicon monoxide must be present between the germanium and the glass. The metallic resistance layer is a nickel-chromium alloy. Gold contacts 4 are applied to the semi-conductor body, and nickel contacts 6 with gold tips 7 are applied to the resistance layer, by vacuum evaporation.
Patent GB-1231695-A (GB)
IPC: G06G7/625
Filed: 1969-04-02
Abstract: 1,231,695. Analogue multipliers. INTERNATIONAL STANDARD ELECTRIC CORP. 2 April, 1969, No. 17321/69. Heading G4G. An analogue multiplier for driving the product f(t)g(t), where g(t) is a signal of limited duration, comprises means for feeding samples of the signal f(t) to a filter having an impulse response proportional to g(t). The signal f(t) is sampled by short pulses of period T from source 6, the frequency F = 1/T being at least equal to twice the maximum component in the spectrum of f(t). The sample pulses 8, 9, 10, 11 of amplitude f(nT), are fed to a filter 3 having an impulse response given by the junction g[(k + 1)t], where k>>1, whereby the output of the filter (Fig. 2b) may be expressed as f(nt).g [(k + 1)t]. This output is sampled by short pulses 16, 17, 18, 19 of period T(1 + 1/k) from source 6. The samples occur at instants t = nT(1 + 1/k) - nT = nT/k and thus have amplitudes f(nT).g[(k + 1)nT/k]. These pulses may be regarded as samplings of a signal h(t) (Fig. 2c) at instants nT(1 + 1/k) whereby the pulse amplitudes may also be written h[nT(1 + 1/k)]. A comparison of the two expressions for pulse amplitude yields h(t) = f(kt/k + 1).g(t), where t = nT(1 + 1/k). The first term of the product is substantially equal to f(t) since k>>1, e.g. k = 10,000. The envelope h(t) of the pulses 16, 17, 18, 19 is derived by passing them through a low-pass filter 5 having a cut-off frequency given by f c  = 1/2T(1 + 1/k). The theory of the low-pass filter 5 is discussed in the Specification where it is stated that the width of the frequency spectrum lines of the pulses 16, 17, 18, 19 should not exceed the repetition frequency of the second sampling. The multiplier may form part of a coherent pulse-doppler radar simulator in which f(t) represents a sine wave doppler frequency signal and g(t) represents the effect of the main lobe of the antenna beam passing over a target.
Patent GB-1233082-A (GB)
IPC: B23K7/00
Filed: 1968-07-02
Abstract: 1,233,082. Flame cutting. URALSKY ZAVOD TYAZHELOGO MASHINOSTROENIA. 2 July; 1968, No. 31468/68. Heading B3V. A flame cutting apparatus comprises a torch 4 suspended from a carriage 1 by linkages 7-9 pivoted at 2 to the carriage so that the torch can be oscillated about its nozzle 5 with the distance of the nozzle from the carriage constant. One link 7 has a roller 10 confined to an arcuate guide slot 11 whose centre of curvature is on the line between the pivot and the nozzle. The carriage is movable on a guide 18 and a templet 17 on the guide causes a roller 19 on a lever 15 connected to the linkage to pivot. The angle of inclination α of the torch initially is adjustable by a screw 22. In operation, the carriage is moved rightwards and the templet causes the torch to pivot to an inclination # just prior to cutting a workpiece 20. After the start of cutting the torch is returned to an inclination α for the rest of the cut. The position of the templet may be adjusted. A curved templet may be used for curved workpieces.
Patent GB-1234191-A (GB)
IPC: B65D27/12
Filed: 1968-04-29
Abstract: 1,234,191. Wrappers &c. W. W. CLELAND Ltd. 23 April, 1969 [29 April, 1968], No. 20152/68. Heading B6A. An open-ended flat tubular sleeve for a vacuum formed plastics pill carrier (not shown) is made from a blank of paper, cardboard or plastics material and comprises a front wall 3 associated along a pair of opposite edges 1, 2 with flaps 4,5 forming the rear wall when the flaps are overlapped and bonded to each other by an adhesive strip 6, an end portion of which being also attached to the front wall 3 in the region of a cut-out 7 in the flap 4 so as to provide a stop for the pill carrier when the latter is inserted into the sleeve.
Patent GB-1250575-A (GB)
IPC: H02P25/14
Filed: 1969-06-04
Abstract: 1,250,575. Control of A.C. motor. BELLING & CO. Ltd. 3 June, 1970 [4 June, 1969], No. 28206/69. Heading H2J. A shaded pole induction motor in a ducted air system is supplied with an asymmetrical waveform by means of a diode D in parallel with a resistor R B , for slow speed control. The resistances in the circuit may be variable. When thermostat switch A closes, terminal 1 is connected to either terminal 2, 3 or 4 dependent on the setting of the switch S, in the former two cases the motor receiving a symmetrical supply. When switch A opens, the motor receives an asymmetrical supply via R A . Terminals 5 and 6 are always interconnected. For a heating system, closure of switch A leads to high speed operation, but for cooling, closure of switch A may cause the motor to be connected in a low speed mode of operation. In the heating mode, storage heaters are connected to the supply, and a " summer/winter " changeover switch may be provided to reverse the function of switch A as above. A thermostat switch fitted with an accelerator heater may be used in which case it is necessary that the switch A is operated by a relay coil controlled by the thermostat switch.
Patent GB-1251204-A (GB)
IPC: B60B33/00
Filed: 1968-03-28
Abstract: 1,251,204. Castors. G. H. HUGHES Ltd. Feb.26, 1969 [March 28, 1968], No. 15081/68. Heading A4U. In a castor, particularly for an invalid carriage, a tubular mounting member 13 is welded to a metal frame member 11 of the carriage, and a bolt shank 17, passing through the member 13,is prevented from rotation relatively thereto by abutment of a flat 16a of the bolt head 16 with the member 11. The shank 17 is rotatable in an aperture 26 in the head 25 of a wheelfork and has a threaded part engaged by a selflocking nut 30, nylon bearing bushes 27, 28 being mounted in the fork head and ' having flanges 27a, 28a seating on a respective rim of the aperture 26 to form bearing washers.
Patent GB-1251340-A (GB)
IPC: H01L21/306
Filed: 1968-10-11
Abstract: 1,251,340. Polishing. TIZON CHEMICAL CORP. 11 Oct., 1968 [30 Oct., 1967], No. 48291/68. Heading B3D. [Also in Divisions B6 and C4] Chrystalline silicon is polished by an aqueous slurry having a pH of at least 9 provided by À25 to 50% by weight of an alkaline earth metal hydroxide of which from 0À2 to 49À95% weight based on the weight of the slurry, is dissolved and from À05 to 49À8% by weight based on the weight of the slurry is undissolved. The dissolved material acts by chemical reaction and the undissolved by physical polishing the conventional polishing agent is used. The slurry can be formed by adding an alkaline earth metal hydroxide or oxide to water. Alternatively the hydroxide can be formed in situ in the slurry by reacting an alkaline metal earth compound with a base in the presence of sufficient water to produce the hydroxide. The reaction product can be employed as it is, if it provides the required concentration of dissolved and undissolved hydroxide, has the required pH, and does not contain by-products deleterious to the polishing. If necessary the composition of the reaction product can be adjusted e.g. by dilution or concentration. Examples are given of forming calcium hydroxide by reacting calcium chloride with sodium hydroxide and forming strontium hydroxide by reacting strontium chloride and sodium hydroxide. As an example, 5À4 gm. sodium hydroxide and 10À0 gm. calcium chloride were admixed in 300 gm. water to form calcium hydroxide in situ. The slurry had a pH of 12À5.
Patent GB-1258317-A (GB)
IPC: B63B35/79
Filed: 1969-02-28
Abstract: 1,258,317. Sailing craft. H. H. SCHWEITZER and J. R. DRAKE. 28 Feb., 1969 [27 March, 1968], No. 10919/69. Headings B7B and B7V. A wind-propelled vehicle comprises an unstayed spar 12 universally jointed to the vehicle body 10 and carrying a sail 14, a pair of arcuate booms 16 extending from the spar and holding the sail taut. The body is a surfboard fitted with a daggerboard 20 the top of which carries joint 36. Wooden base 27 is wedged into hollow fibre-glass mast 12. Booms 16, 18 are secured to the mast by webbed tape and to the sail by an outhaul. The sail is manipulated by the user holding one of the booms.
Patent GB-1259641-A (GB)
IPC: C08G73/06
Filed: 1969-01-31
Abstract: 1,259,641. Polyiminoimide-coated products. E. I. DU PONT DE NEMOURS & CO. 31 Jan., 1969 [31 Jan., 1968], No. 5409/69. Heading B2. [Also in Division C3] Aromatic polyamide-nitriles (see Division C3) have the recurring unit  and can be dehydrated at over 100‹C to polyiminoimides of recurring unit  They are soluble in organic solvents and their solutions, optionally containing inert fillers, e.g. TiO 2  may be used to coat and/or impregnate various substrates such as metals, e.g. Al, Cu, brass or steel, in the form of sheets, wires or screens, or sheets, fibres, foams, or woven or non-woven fabrics of glass or other polymers especially perfluorocarbons, e.g. p.t.f.e. or tetrafluoroethylene/hexafluoropropylene copolymers.
Patent GB-1264159-A (GB)
IPC: G01P3/50
Filed: 1969-06-27
Abstract: 1,264,159. Measuring speed and distance. SMITHS INDUSTRIES Ltd. June 19, 1970 [June 27, 1969], No.32505/69. Headings G1K and G1N. [Also in Division G4] In a device for measuring speed of and the distance travelled by a land vehicle the measurements are corrected for the effects of wheel spin. The speed of each wheel 10 and 11, Fig.4, is measured by means of transducers 27 and 28, the outputs of which are fed to switches 29 and 30 and also to electro-mechanical transducers 36 and 35. Differential gear 37 causes shaft 38 to rotate at a speed equal to the difference in rotation of the speed of wheels 10 and 11 if any. This shaft controls the transducer 39 which in turn drives threshold device 40, which controls the switches 29 and 30 so that the electro-mechanical transducers 31 and 32 are connected to the wheels which are rotating at the lowest speed. The output of differential 33 is then fed to an indicator. A mechanical version of this embodiment may be provided by replacing switches 29 and 30 by clutches, and the transducer 39 and gate 40 by slipping clutches, all electrical connections being replaced by mechanical linkages. In yet another embodiment, Fig.5, the transducer 27 and 28 feed a gate 42 and also differential gear 37 by means of electro-mechanical transducers 35 and 36. Any difference in speed between the two wheels causes threshold device 40 to be activated by means of shaft 38 and transducer 39. This in turn causes gate 42 to be switched so that the output of the gate represents the most slowly rotating wheel. The output is then fed to an indicator. In a purely mechanical embodiment of the invention, Fig.6 the wheels 10 and 11 are coupled to a selector clutch 45, and a differential gear 46. If wheel slip occurs the output of differential gear 46 is fed via a slip clutch 47, to a spring- loaded link 48, which in turn activates selector clutch 45 so that the output 34 of the system corresponds to the most slowly turning wheel. The output 34 is then fed to some form of indicator.
Patent GB-1264523-A (GB)
IPC: D06P5/12
Filed: 1969-06-04
Abstract: 1,264,523. Printing synthetic polyamides. FARBWERKE HOECHST A.G. 4 June, 1969 [5 June, 1968], No. 28185/69. Heading D1B. Multicolour effects and shadow dyeings are obtained on synthetic polyamide materials by printing the material with a paste of pH 2-9 containing a water-soluble non-dyeing, natural or synthetic tanning agent, which is a condensation product of an aromatic sulphonic acid or is of phenolic structure, followed by a heat fixation, e.g. steam, and then dyeing with a neutral to weakly acid aqueous bath containing an acid dye or any two or three component mixture of an acid dye, a basic dye and a disperse dye, preferably at 70 to 85‹C. at a high goods to liquor ratio.
Patent GB-1264584-A (GB)
Title: Pigment classification
Inventor: JACKSON DONALD S
IPC: C09C1/62
Filed: 1970-02-13
Abstract: 1,264,584. Making metal powder. INTERNATIONAL BRONZE POWDERS Ltd. 13 Feb., 1970, No. 7169/70. Heading B3A. A method of making metallic flaked powders comprises passing a liquid containing coarse metal particles through a grinding circuit, continuously withdrawing liquid containing comminuted metal from the circuit, classifying the metal into two oversize and one undersize fractions and continuously returning the coarser oversize fraction to the circuit. The circuit comprises a ball mill 16 and a vibrating screen classifier 15 having screens 15a, 15b and 15c. Product from screens 15a and 15b are returned via lines 25 and 26 to the ball mill while products retained and transmitted by screen 15c are passed to filter presses 21 and 35 or may -be further classified. Metals used may be aluminium, copper alloys, zinc, stainless steel, silver or gold. The finer oversize fraction is preferably between 400 and 100 mesh. Other comminuting and classifying means may be used in the method.
Patent GB-1265607-A (GB)
IPC: B01J2/26
Filed: 1970-04-17
Abstract: 1,265,607. Conveyers. METALLGESELLSCHAFT A.G. 17 April, 1970 [18 April, 1969], No. 18567/70. Heading B8A. [Also in Divisions B7 and F4] In an apparatus for the thermal treatment of solids a plurality of pallets 2 are moved in abutting relation through a treatment region by a drive wheel 2 and are moved along a return run, at a speed 10 to 15 times that through the treatment region, by an endless conveyer 7 having lugs 9 to engage the pallets. Arms 5, 10 mounted asymmetrically between the treatment run and the return run serve respectively to accelerate and deaccelerate the pallets in their passage between the said runs. Alternatively, Fig. 3 (not shown), the transfer of the pallets between the runs may be accomplished by cams (13), (14). The apparatus may be used for sintering ores and ore concentrates, pallet firing operations, calcining operations and drying and cooling processes.
Patent GB-1266959-A (GB)
IPC: B28B5/00
Filed: 1969-04-29
Abstract: 1,266,959. Movable edge members for continuous casting mould. SPETSIALNOE KONSTRUKTORSKOE BJURO PROKAT DETAL. 29 April, 1969 [7 May, 1968], No. 21766/69. Heading B5A. A mould for continuously casting concrete building members with mineral binders comprises an endless conveyer 5 with a linear portion carrying a plurality of base-plates 4 which co-operate to define the mould base. Co-operating side walls 1 are fixed to brackets 3 fast on base-plates 4 by a parallelogram linkage 6 so that as the conveyer passes around guide wheel 9 the side walls 1 are raised away from the base by adhesion to the cast concrete 2, pressure between the walls and the block is reduced and edge damage to the block is prevented.
Patent GB-1288040-A (GB)
IPC: G06G7/78
Filed: 1968-12-19
Abstract: 1288040 Electric analogue calculating EMI Ltd 11 Dec 1969 [19 Dec 1968] 60277/68 Heading G4G A circuit is described applicable to the determination of the speed to windward, V w , of a yacht, from the speed of the yacht through the water, V B , the apparent speed of the wind, W A , and the apparent wind direction, and with respect to the yacht heading, which quantities are related by the equations V w  = V B sinwt (1) and V B coswt = W A cos(wt+#)(2), where (wt) is an angle to be determined. As shown, a variable (wt) is generated as the output Ecoswt of an oscillator 4 which is applied directly to gain-controlled amplifier 5, and-via phase shifter circuit 8 to give an output Ecos(wt + #)- to gain controlled amplifier 9. Control signals corresponding to V B  and W A  are applied to amplifiers 5 and 9, respectively, to give outputs V B coswt and W A COS(wt + #), which are applied to a comparator 10 to give an output pulse twice each cycle corresponding to the instants at which the two inputs are equal i.e. to the value of wt) satisfying equation (2). These pulses energize the sampling bridge 12, to which the signal V B coswt, phase shifted through 90 degrees by phase shifter 6, is applied, to give as output the value of V B sinwt of equation (1), and hence the value of V w .
Patent GB-1288953-A (GB)
IPC: G02F1/313
Filed: 1969-08-05
Abstract: 1288953 Optical waveguides WESTERN ELECTRIC CO Inc 5 Aug 1969 [7 Aug 1968] 39052/69 Heading G2J [Also in Division H1] A resistive termination for a waveguide comprises a 3 db coupler 41, 44 each having branches 1, 3 and 2, 4 respectively. Branches 1 and 2 and 3 and 4 are conjugate and the latter are connected. Branch 1 functions as both input and output. The waveguide is made of a material having a higher refractive index than the substrate. The waveguide functions for selected frequencies and may be tuned.
Patent GB-1295133-A (GB)
IPC: B01J20/08
Filed: 1970-04-17
Abstract: 1295133 Alumina pellets ALUMINIUM CO OF AMERICA 17 April 1970 [25 April 1969] 18545/70 Heading C1A Alumina pellets of high surface area and high sorptive capacity are made by pelletizing a mixture of activated alumina and alumina hydrate in the presence of water and ageing the product. The pellets may be screened, afterrolled and aged at elevated temperature, dried and re-activated.
Patent GB-1295876-A (GB)
IPC: G03B19/04
Filed: 1969-12-04
Abstract: 1295876 Film cartridges EASTMAN KODAK Co 4 Dec 1969 [5 Dec 1968] 59236/69 Heading G2A A film cartridge 14 for use in a fixed aperture camera 10 has an aperture 28 located behind the camera lens 11, the aperture being related to the speed of the film so that a correct exposure will be made. In the arrangement of Fig.1 (not shown), the aperture 28 is less that the fixed aperture of the lens 11, and is preferably located in the diaphragm plane of the lens. In Fig.2 a movable vane 30 containing a number of differently sized apertures, or a single tapered aperture, can be moved across the aperture 28 by means of a control arm 31 extending externally of the camera. In this embodiment the cartridge itself forms the back wall of the camera. In Fig.3 (not shown) the aperture 28 is covered by a series of plates (33) having apertures of different sizes. These plates are formed as flexible opaque strips having an  adhesive layer on the under side. They are mounted across the aperture 28 of the cartridge in sequence, with the smallest aperture uppermost. Thus the plates (33) can be peeled off one by one until a suitable aperture is reached.
Patent GB-1296752-A (GB)
IPC: C08F8/00
Filed: 1970-01-26
Abstract: 1296752 Copolymers BAYER AG 26 Jan 1970 [24 Jan 1969] 3667/70 Heading C3P Copolymers of formula wherein A is H or methyl; A is H or R is H, halogen, C 1-6  alkyl, phenyl or an ester, amide or nitrile group; R<SP>1</SP> is H, halogen, methyl or nitrile; R<SP>11</SP> is H or alkyl; R<SP>111</SP> is H, alkyl, halogen, hydroxyl or a phenolic radical bound directly or via an oxygen or sulphur atom or a methylene, sulphonyl, sulphoxide or silane group; X is CO or SO 2 ; g is 9 to 1000; r is 1 to 15; and W and W<SP>1</SP> are end groups derived from the polymerization initiator; may be prepared by copolymerizing N-methylol ethers of acrylic, or vinylsulphonic acid amides or fumaric acid diamide with ethylenically unsaturated comonomers in a molar ratio of 1: 9 to 1 : 1000 and reacting the copolymers with a phenol which is unsubstituted in an o- or p-position. The copolymers may be prepared by bulk, solution, emulsion or dispersion polymerization in the presence of a free radical initiator. Many suitable comonomers are listed including olefins, vinyl and vinylidene chlorides, acrylic and methacrylic acids, esters, amides and nitriles, styrenes, vinyl esters, maleic acid and its anhydride, imide and esters. Specified phenols are phenol, cresols, resorcinol, hydroquinone, dihydroxydiphenyl, and bis-(hydroxyphenyl)-alkanes, cycloalkanes, ethers, sulphides, ketones, sulphones, sulphoxides and dimethylsilanes. The products may be used in the production of films and coatings, and as starting materials in the manufacture of polymeric dyes. Examples describe the preparation of copolymers of N-methoxymethyl methacrylamide with (1) methyl methacrylate, (2) styrene, (3) styrene and acrylonitrile and (4) styrene and methyl methacrylate in chlorobenzene in the presence of azodiisobutyronitrile and (3 and 4) t-dodecyl mercaptan; and the reaction of the products with (1) phenol and (2-4) bisphenol A.