baber/WOPTO huggingface dataset:
Patent GB-1290024-A (GB)
IPC: B29C35/02
Filed: 1969-12-22
Abstract: 1290024 Sheet forming MONSANTO CO 22 Dec 1969 [23 Dec 1968] 62341/69 Heading B5A A plunger assembly for use in a plunger assisted forming process comprises at least one stem upon which or each of which can be releasably mounted one at a time any one of a plurality of plugs of different sizes. In this way the forming machine may quickly be adapted to produce articles of varying sizes merely by removing one plug and substituting a fresh one of the desired size. In the embodiment shown in the Figure, a plunger consists of a support member 12 over the upper end of which is releasably secured by means of a threaded member 36 a plug 23 of the desired size. The plug is provided at its lower end with a pocket 20 to receive the support member, accurate and quick location of the plug upon the support member being facilitated by a guiding counterbore 21. Each plug is heated by means of an electric heater 26 located in the support means, said heater being controlled by thermistor 20, and is provided with bore 27. for blowing or for the escape of air trapped between the plug and the sheet being formed. Alternatively each plug may be a force fit upon the support member. A plurality of plug assemblies each carrying similar or different plugs may be mounted upon a single supporting element.
Patent GB-1295004-A (GB)
IPC: A47C4/44
Filed: 1971-06-16
Abstract: 1295004 Collapsible chairs H KETTLER [trading as HEINZ KETTLER METALLWARENFABRIK] 16 June 1971 [26 June 1970] 28153/71 Heading A4J In a collapsible chair having an adjustably tiltable backrest 1, the ends of the backrest have connected thereto plastics material buffers 9 each formed with slideway 9a which rests on a rear support frame 4 in any inclined position of the backrest. The chair has front and rear support frames, (3) Fig.2 (not shown) and 4 respectively, joined together by a hinge (6) to form an inverted vee with the hinge at the vertex and arm rests (2) pivoted to the backrest which is tilted by adjusting the hinge (6) in a rack (5) under each arm rest (2). When the chair is collapsed, the buffer prevents the frame components of the chair from coming into contact Fig.5 (not shown).
Patent GB-1295678-A (GB)
IPC: C07D223/22
Filed: 1969-11-26
Abstract: 1295678 Dibenzo-pyrrolo-azepines CIBA GEIGY AG 26 Nov 1969 [19 Dec 1968] 57848/69 Heading C2C Novel compounds of Formula I (in which R 1  is H, CH 3 , C 2 H 5  or n-C 3 H 7 , and R 2  is H, straight chain C 1-4  alkyl, isopropyl or allyl) and their pharmaceutically acceptable acid addition salts are prepared (i) by reacting a compound of Formula II  (in which R 1 <SP>1</SP> is CH 3 , C 2 H 5  or n-C 3 H 7  or a group which can be replaced by a hydrogen atom by hydrolysis) with a compound of formula H 2 NR 2  and hydrolysing an intermediate compound thus obtained when R 1 <SP>1</SP> is other than CH 3 , C 2 H 5  or n-C 3 H 7 , (ii) when R 1  is not H, by reacting a compound of Formula III with a reactive ester of methanol, ethanol or n-propanol, (iii) when R 1  is not H, by reducing a compound of Formula IV (in which R 3  is a formyl, acetyl or propionyl group) with diborane in an ethereal solution, or (iv) when R 1  is H, by hydrolysing a compound of Formula V (in which Ac is CN or the acyl radical of an organic. acid), and, if desired, converting a resulting compound I into a pharmaceutically acceptable acid addition salt thereof, or converting an acid addition salt of a compound I into the free base or into another, pharmaceutically acceptable, acid addition salt. Compounds of Formula V (in which Ac is ethoxycarbonyl) are prepared by reacting a compound of Formula I (in which R 2  is C 1-5  alkyl, allyl or benzyl) with ethyl chloroformate. 2 - Ethyl - 8 - formyl - 1,2,3,8 - tetrahydrodibenzo[b,f]pyrrolo[3,4.d]azepine is prepared by reacting 2 - ethyl - 1,2,3,8 - tetrahydrodibenzo[b,f]pyrrolo[3,4-d)azepine with formic acid. Pharmaceutical compositions having central depressant and antihistame activity, for oral, rectal or parenteral administration; comprise a compound of Formula I, or a pharmaceutically acceptable acid addition salt thereof, together with a pharmaceutical diluent or carrier.
Patent GB-1296721-A (GB)
IPC: C07C2/84
Filed: 1970-08-11
Abstract: 1296721 Dehydrocoupling benzene and substituted benzenes ASAHI KASEI KOGYO KK 11 Aug 1970 [11 Aug 1969 29 Sept 1969] 38594/70 Heading C5E [Also in Divisions B1 and C2]  Diphenyl compounds of the formula where X is H, lower alkyl (up to hexyl), lower alkoxy (up to propoxy), Cl or NO 2  and Y is H or methyl are made by heating a compound of the formula in the presence of an oxygen-containing gas (partial pressure of oxygen at least 5 kg/cm<SP>2</SP>), a catalytic amount of palladium or a compound of palladium and a co-catalytic amount of sulphuric acid. Materials treated in the examples include: benzene, meta-xylene (yielding 2,4,2<SP>1</SP>,4<SP>1</SP>-tetramethyldiphenyl), paraxylene (yielding 2,5,2<SP>1</SP>,5<SP>1</SP>-tetramethyldiphenyl), toluene (yielding both 2,2<SP>1</SP>- and 4,4<SP>1</SP>- dimethyldiphenyl), ortho-xylene (yielding 3,4,3<SP>1</SP>,4<SP>1</SP>-tetramethyldiphenyl), and cumene (yielding 4,4<SP>1</SP>-diisopropyldiphenyl). Reference is also made to the use of ethylbenzene. The oxygen may be pure or diluted with an inert gas, e.g. nitrogen or CO 2 . The reaction temperature is 30-300‹ C., preferably 50-200‹ C. Catalysts may be made by: (Example 1) adding silica gel to a solution of palladium chloride in dilute hydrochloric acid, evaporating to dryness, reducing by adding a solution of hydrazine hydrate, washing, drying, dipping in a solution of potassium acetate, and again drying; (Example 2) adding silica gel to an aqueous acetic acid solution of palladium acetate and potassium acetate and evaporating to dryness; and similar techniques using as supports: alumina, activated carbon or silica-alumina, as palladium compounds: the sulphate, propionate, nitrate and phosphate, and as co-catalysts: lithium acetate, potassium nitrate, NaH 2 PO 4 , caesium acetate, rubidium sulphate, lithium nitrate, sodium acetate and potassium acetate (together), KH 2 PO 4 , caesium sulphate, potassium sulphate, rubidium acetate or none. There may also be added to the sulphuric acid a lower fatty acid such as acetic, propionic, butyric valeric or caproic acid, or their salts.
Patent GB-1297948-A (GB)
IPC: H02P23/00
Filed: 1969-03-21
Abstract: 1297948 Automatic speed control R C A CORPORATION 20 March 1970 [21 March 1969] 14945/69 Heading G3R In a drive control system, a speed error signal causes rapid acceleration until a predetermined speed is reached. At this point, an auxiliary momentary error signal causes the drive to be reduced to a low level, and the subsequent error signal then ensures stabilization at the required speed. In the described embodiment, a recording tape 2 is scanned by a headwheel 14 driven by a motor 12. The motor also drives a tonewheel 18, and an associated pick-up 20 provides pulses on a line 45 indicative of the speed of motor 12. These pulses, together with reference velocity pulses on a line 46, are fed to an error detector including flip-flop circuits 40, 42, 44. In operation, assuming it is desired to accelerate the motor up to the reference velocity, the underspeed condition sets the flip-flop circuits so that a gate 54 maintains its output at earth potential. Thus the input to an amplifier 62 is earthed and maximum drive is transmitted to the motor 12. At this time, the speed error signal is held by a circuit 58, but the resulting positive output signal is overridden by the output of gate 54. When the reference velocity is reached, the output of flip-flop 44 reverses and the gate 54 feeds a high positive potential to block diode 64. At the same time, transistors 75, 91 in a differentiating circuit 70 are turned on and a positive pulse on line 99 biases the input of amplifier 62 to a positive level, reducing the drive to motor 12 to a low value so that deceleration begins. The pulse on line 99 decays with a time constant determined by an RC circuit 86, 88 until a diode 98 blocks. From this point, the error signal in holding circuit 58 takes over control, and the motor speed is rapidly stabilized at the reference velocity.
Patent GB-1303639-A (GB)
IPC: C08J9/00
Filed: 1969-06-07
Abstract: 1303639 Continuously casting polymer foam DRAKA PLASTICS NV 7 Sept 1970 [7 June 1969] 28942/69 Heading B5A [Also in Division C3] A polymer foam is made by passing a mixture of polymer foam producing reactants along a trough-like open-topped conveyer and moving lining sheets of polyethylene, of thickness 2¢ to 3¢ thousandths of an inch, along the conveyer between the foaming reactants and the conveyer sides, the sheets being raised with the rising foam so as to produce a flat top surface on the resultant foam block. The thickness of the upper edge portion of each sheet may be increased, e.g. by folding or applying an adhesive tape, for engagement with a device for raising the sheet.
Patent GB-1304683-A (GB)
IPC: D03C3/20
Filed: 1969-02-11
Abstract: 1304683 Looms J & J CASH Ltd 6 Feb 1970 [1 Feb 1969] 7234/69 Heading DIE The pusher needles 31 of a jacquard mechanism are actuated by corresponding push rods 12 which are supported for sliding movement in frame 11 and operated by corresponding electromagnets 15 attached to a carriage 14 which is reciprocable relative to the frame 11. The electromagnets 15 are attached to transverse brackets 16 of carriage 14, and have armatures 18 mounted through a support piece 19 on the push rods 12. The carriage 14 is moved back and forward by a cam mechanism 23 driven in timed relationship with the loom. The push rods 12 are arranged in four transverse vertically spaced banks (Fig. 3, not shown), the electromagnets being carried in longitudinally spaced apart transverse banks which are laterally staggered relative to each other (Fig. 2, not shown). The electromagnets are operated by signals from punched tape reader units (40), Fig. 4 (not shown). A further push rod (12d) (Fig. 3) operates the shuttle box for figure weaving.
Patent GB-1306879-A (GB)
Title: Circuit arrangements  of turbulence amplifiers
IPC: F15C1/18
Filed: 1970-04-30
Abstract: 1306879 Turbulence amplifiers WERKZEUGMASCHINENKOMBINAT "FRITZ HECKERT" KARL - MARX - STADT VEB 30 April 1970 20871/70 Heading G4P A turbulence amplifier can adapt to a slowly changing control signal by feeding the control signal to a plurality of the control channels of the amplifier simultaneously. Fig. 1 shows the response curves (output pressure Pa against control pressure Pe) of the turbulence amplifiers, n representing the number of channels the control signal is fed to. With Pa above B the output is considered to be a binary 1, with Pa below A the output is considered to be binary 0. It can be seen that if the control signals pass to a plurality of channels the amplifier passes from 1 to 0 quicker than for passing to a single channel. In one application (Fig. 2, not shown) the control signal passes to two amplifiers, to one channel in one and to three channels in the other. Thus when the first amplifier is at point B (binary 1) the other is at point A (binary 0) thus the other amplifier output can be used as the front of an output signal and vice versa.
Patent GB-1309077-A (GB)
Title: Combined auxiliary power and engine starter systems
IPC: F16H37/00
Filed: 1969-05-19
Abstract: 1309077 Engine turning gear PLESSEY CO Ltd 11 May 1970 [19 May 1969] 25490/69 Heading F1K An auxiliary power system comprises a prime mover A, an auxiliary power drive output shaft and at least one starting power output shaft e1 e2 operable when the auxiliary power system is already running to derive from the system starting power for an engine E1 or E2. A three element differential gear drive is interposed between the prime mover A and the or each starting power output shaft e1 e2. Two of the three elements of the differential gear drive are respectively coupled to the prime mover and the starting power output shaft and the third element is coupled to a positive displacement pump cm. The pump is arranged, when forward driving torque is transmitted to the starting power output shaft, to deliver fluid to a low-pressure point through control means operable from a normal position allowing substantially unimpeded flow of the delivered liquid to the low-pressure point and thus causing the pump to allow the third element to rotate with very little resistance, to an engine starting position in which a pressure retaining valve is interposed. The valve has loading means for preloading the valve with a force which is so determined as to limit the torque reaction opposed to the rotation of the third element, which the pressure drop in the retaining valve will apply to the differential gear drive according to the desired maximum starting torque to be transmitted to the starting power output shaft. The invention permits any one of a number of engines each connected to the prime mover set by a separate differential gear drive system to be started individually without drastic speed reduction of the auxiliary power system.
Patent GB-1312237-A (GB)
Title: Electrical circuit arrangements for converting a variable rate of input pulses into a related electrical output quantity
IPC: B60T8/17
Filed: 1969-07-25
Abstract: 1312237 Anti-skid braking systems MULLARD Ltd 23 June 1970 [25 July 1969] 37576/69 Heading F2F [Also in Division H3] An anti-skid braking system uses a pulse rate discriminator (see Division H3) followed by a deceleration measuring circuit of the type disclosed in Specification 1,248,788.
Patent GB-1317431-A (GB)
Title: Rocket propellant compositions
IPC: C06B33/02
Filed: 1963-08-16
Abstract: 1317431 Propellants ATLANTIC RESEARCH CORP 16 Aug 1963 32570/63 Heading ClD A rocket propellent composition comprises at least 20% by volume of an organic fuel matrix, a finely-divided solid inorganic oxidizer, and finely-divided beryllium, the components being present in such proportions that the oxidation ratio, measured according to a given formula, is in the range 0À47 to 0À60. The matrix may be a polyether, polysulphide, polyurethane, butadiene-acrylic acid or -methacrylic acid copolymer, polyester, polyamide, polyvinyl chloride, ethyl cellulose, or asphalt, together with a plasticizer, several of which are specified. Alternatively the matrix may comprise a mixture of nitrocellulose and nitroglycerine. Liquid fuels which may be used are triethyl benzene, polyisobutylene, dimethyl maleate, dibutyl oxalate, dibutyl phthalate, benzyl alcohol, triethylene glycol, and methyl #- naphthyl ether. Suitable solid oxidizers are perchlorates and nitrates of NH 4 , K, Na, and Li, and peroxides of Ca, Ba, and Na. Other ingredients used in examples are castor oil, ferric acetonyl acetonate, lecithin, phenyl-#- naphthylamine, and 2-nitrodiphenylamine.
Patent GB-1321682-A (GB)
Title: Machine tool having a gauging apparatus
IPC: B21D5/00
Filed: 1970-06-23
Abstract: 1321682 Press brakes, gauging stops, carriage actuating device HURCO MFG CO Inc 23 June 1970 53953/72 Divided out of 1321681 Headings B3B, B3E and B3W A pair of guaging assemblies of a pressbrake' power shears or punch press, each have a stop 38  mounted on a carriage 27, Fig. 3, as described in Specification 1,321,681, the carriages being simultaneously movable towards or away from the press, punch or shears by an hydraulicpneumatic circuit as shown in Fig. 4. To move each carriage in the direction of arrow 47, a compressed air supply is connected by a valve 88 to a chamber 50B of a cylinder 44, the cylinder 44 being attached to a carriage 37 and mounted on a fixed piston rod 28. The cylinder 44 will thus move in the direction of arrow 47 and force hydraulic fluid from chamber 50F in to chamber 45B of a cylinder 44L via parallel valves 84, 86. The movement of fluid in to chamber 45B causes the cylinder 44L, attached to a carriage 37, to move in the direction of arrow 47, thus forcing fluid from chamber 45F in to a surge tank 77. Movement in the opposite direction 46 is effected by venting cylinder 50B to allow the pressure in surge tank 77 to force the cylinders 44, 44L back. The movement of the cylinders is controlled by the valves 84, 86, the closure of valve 86 causing the movement to slow and the closure of both valves causing movement to cease. Another hydraulic circuit is shown in Fig. 6 in which to drive the guages in the direction of arrow 47, a valve 236 is moved so that chambers 203 and 223 of cylinders 201 and 202 respectively are vented while air is supplied to chambers 204 and 224 and oil from chambers 209 and 227 move into chambers 228 211 respectively. As in the previous circuit movement of the carriage is controlled by valves 84 and 86. Assuming the volume of chambers 209 and 211 are slightly smaller than those of chambers 227 and 228, there will be a shortage of oil in chamber 228 and an excess in chamber 211 when the carriages are moved in the direction of arrow 47. To compensate for this an inclined plane 231 of cam 229 causes its follower to rise as the cylinder 202 is driven in the direction 47 and displaces fluid from cylinder 234 into chamber 228. The slope of the cam 229 is adjusted by screw 229A to compensate exactly for the difference between the displaced volumes. Simultaneously as cylinder 201 moves in the direction 47, the carry 217 of cam 216 causes a piston to descend in cylinder 221 increasing the volume to receive the difference in volume between chambers 227 and 221. The slope of cam 216 is adjustable by means of a screw 216A.
Patent GB-1329496-A (GB)
Title: Inverse transistor
IPC: H01L27/00
Filed: 1971-04-19
Abstract: 1329496 Semi-conductor INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [20 April 1970] 24628/71 Heading H1K A transistor in which the base region 16 is disposed within the emitter region 17, and the collector region 18 within the base, includes a region 22 of the same conductivity type as, but having a higher impurity concentration than, the emitter disposed between the base 16 and the emitter 17 along at least a portion of the sidewalls of the base region. The region 22 may surround the base region and reduce the current flowing laterally through the side walls causing an increase in current to a heavily doped subemitter 14 located below and adjacent the base, so improving gain characteristics. A high impurity concentration emitter contact region 20 may also be present. The transistor may be formed in an epitaxial layer 10 and isolated from the remainder of the chip by isolation region 15. In a further embodiment a plurality of base and associated collector regions may be formed in a common emitter, again the heavily doped region at least partially surrounding the base regions and also forming the emitter contact region.
Patent GB-1331951-A (GB)
Title: Solar distillation plant
IPC: C02F1/14
Filed: 1970-12-29
Abstract: 1331951 Solar distillation plant A PORTEOUS 29 Dec 1970 [2 Jan 1970] 211/70 Heading B1B A solar distillation plant, suitable for producing fresh water comprises, a dark-coloured receptacle 26 for brackish water supported within a housing assembled from two gableends 25, two side walls 12 each supporting a gutter 13, ridge-member 16 supported by props 15 and extending from one gable end to the other parallel to the side walls and above the space between them, and panes of clear glass 24 (or other material transparent to solar radiation) supported on bars 21 extending at spaced intervals apart between the ridge member and the gutters. The brackish water is evaporated in known manner by solar radiant heat; and the vapour condenses on the undersurface of panes 24 to give pure water which is collected in gutters 13. In the embodiment shown, the sides of receptacle 26 are clamped between walls 12 and gutters 13; but the walls may be formed integrally with the gutters and, in this case, the receptacle 26 is clamped to the side of the walls or to the rim of the gutters. The recepacle 26, which may be made of butyl rubber, may be horizontal or inclined; in the latter case, a continuous film of brackish water flows through the receptacle. The side walls 12 and gutters 13 may be formed of aluminium or of a suitable plastics material. The side walls and ridge member 16 may be supported at any desired angle to the horizontal by means of jacks 11 and 23.
Patent GB-1333827-A (GB)
Title: Method and apparatus for producing folded and thread-sealed  sheet products
IPC: B42B2/02
Filed: 1971-05-14
Abstract: 1333827 Folding and cutting webs POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 14 May 1971 14920/71 Heading B8R [Also in Division B6] Printed paper webs 1 (or a single web), are folded longitudinally by a funnel folder 2, thread-sealed by a device 3 which stitches a line of thread clasps 4 into the web from one side and seals the thread ends to the other side of the web by a sealing rail or applying adhesive. The web is then cut into sheets by a cutter 5b, and may be further folded by a second folder, e.g. a blade folder or a further funnel folder, upstream or downstream of the cutter. The web may also be cut by a further cutter along the line of folding produced by the or the first folder.
Patent GB-1337030-A (GB)
Title: Manufacture of phosphoric acid
IPC: C01B25/00
Filed: 1970-12-21
Abstract: 1337030 Wet-process phosphoric acid ALBRIGHT & WILSON Ltd 21 Dec 1970 [20 Nov 1969] 56904/69 Heading C1A In the wet phosphoric acid process, foaming is inhibited by adding to the slurry in the attack stage 100 c.c. to 10 1. per ton of slurry of a C 10-20  alkanol or alkenol or an alkali metal salt, fatty acid ester or alkylene oxide condensate thereof. Specified foam inhibitors are lauryl, hexadecyl and octadecyl alcohols, and their Na, K or Li alkoxides; lauryl acetate, octadecyl propionate, lauryl stearate, hexadecyl myristate, octadecyl palmitate, tetradecyl laurate and condensates of the alcohols with 2-5 moles of ethylene or propylene oxide. Inhibitors melting below 50 C. are preferred, used in a proportion of 400 c.c. to 4 1. per ton of rock. The inhibitors are stated to be non-corrosive to rubber reactionvessel linings. Alkali metal phosphates may be formed from the acid by conventional methods.
Patent GB-1337386-A (GB)
Title: Electrically operated heat storage devices
IPC: F24H7/04
Filed: 1970-11-17
Abstract: 1337386 Electric storage heaters ALLIED IRONFOUNDERS L t d 17 Nov 1970 [17 Nov 1969] 56058/69 Heading F4U An electrically operated heat storage device comprises a heat retaining block assembly 8 which is shaped to provide ducts 9 running along the four vertical faces thereof and a duct 10 running vertically downwards through the block, an electrically driven fan unit 24 which draws air through a filter 4 into chamber 6, first electrical heating means 17, 18, 19 for heating the blocks, an inferential cut-out 20, 21, 22 connected in series with each first heating means, a second electrical heating element 32, 33, 34 connected in parallel with each cut-out, and a third electrical heating element 31 positioned adjacent the cut-outs for heating the cut-outs. The cut-outs and the second heating elements are physically grouped together so that the second heating elements heat the cut-outs. Thus, if one of the cut-outs trip, its adjacent heating resistor will heat up and thereby influence the remaining cut-outs to ensure that all the cut-outs trip before a section of the block 8 reaches a dangerously high temperature. The third heating element 31 is connected in circuit with the fan for simultaneous operation with the fan. The rating of the resistor 31 is chosen so that it provides radiant heat to the cut-outs to compensate for the increased temperature gradient when the fan 24 is passing cooling air around the block 8.