baber/WOPTO huggingface dataset:
Patent GB-1360324-A (GB)
Title: System for reigniting the combustion system of a gas turbine
IPC: F02C7/262
Filed: 1972-11-02
Abstract: 1360324 Gas turbine reignition system GENERAL MOTORS CORP 2 Nov 1972 [22 Feb 1972] 50539/72 Heading F1G [Also in Division G1] A system for reigniting the combustor of a gas turbine power plant upon flameout comprises a sensor 10 generating a first electrical signal representative of compressor discharge pressure CDP; shaping means 12 generating a second signal from the first signal which second signal represents the threshold value of #CDP as a function of CDP corresponding to the transition from normal operation to a flameout condition 8, 9 Fig. 4; derivative generating means 14 responsive to the first signal to generate a third signal represting #CDP; comparing means 15 responsive to third and second signals to generate a flameout signal; delay means 18 energized by the flameout signal and delaying it five milliseconds to screen out ephemeral signals; delay means 20 providing 0À57 seconds delay to allow decay of torsional oscillations in the gearbox, shafts and rotors of the plant which oscillations are excited by flameout; ignition means 21, 22 responsive to the output of delay means 70 to reignite the combustor of the power plant; timing means 23 effective to  maintain the ignition means operative for a predetermined time e.g. 2À8 seconds and at the end of that time to pass a signal to AND gate 19 to prevent transmission of the flameout signal until the system is reset; and logic means including gates 27, 28 and 30 to block flameout signals during the 0À57 second delay period and to reset the system and to initiate a new ignition sequence if flameout occurs again during the 2À8 second ignition period.
Patent GB-1300109-A (GB)
Title: The control of a fluid-operated drill motor mounted on an extensible leg and a control device suitable for use in such control
Inventor: STOKES MAURICE RICHARD
IPC: E21B19/087
Filed: 1970-10-23
Abstract: 1300109 Rock drills TORQUE TENSION Ltd 15 July 1971 [23 Oct 1970] 50572/70 Heading B3C A control device 4 for a rock drill 7 comprises an inlet 17 for connection to a fluid pressure supply pipe 10, the inlet leading to a first outlet 18 connected to a pipe 8 via a motoroperating valve 24, and to second and third outlets 22, 23, connected to pipes 2 and 3 respectively by way of a drill leg-actuating valve 57, and by way of a manually settable rotary selector 64, which allows fluid to leave through the second outlet but not the third, or can be set to allow the fluid to leave through the third outlet but not the second, the motoroperating and leg-actuating valves 24, 57, being normally closed, and there being independently manually operable lever means 58, 30, for opening one or the other of the valves. Pipes 2 and 3 connect device 4 with the extensible leg 1 of the rock drill, and motor 5 is connected to device 4 by pipes 8, 9, which screw into outlet 18 and inlet 19 on the device. During operation leg 1 is extended to feed the drill. Other valves 33, 43 and 76 are provided in device 4. Fluid is discharged to a tank from an outlet 73.
Patent GB-507216-A (GB)
Abstract: 507,216. Impedance networks. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 9, 1937, No. 34166. Convention date, Dec. 9, 1936. [Class 40 (iii)] A filter comprises a bridge having two identical parallel tuned circuits S1, S2, one being shunted by a resistance R and the other being shunted by parallel tuned circuits S3, S4, so that at the resonant frequencies of S3, S4, the shunt across S2 is large and equal to resistance R, and a small output appears at 2, 2'. Preferably a resistance r is connected across S3 so that the impedance of r and S3 at the resonant frequency of S3 is equal to the impedance of S4 at its resonant frequency. Series tuned circuits may replace the parallel tuned circuits, Fig. 4 (not shown). According to the Specification as open to inspection under Sect. 91, a further parallel tuned circuit may be connected in series with S1. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 271,911, [Class 40 (v)], and 410,225.
Patent GB-1078200-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: START ERNEST
IPC: D04B11/00
Filed: 1963-12-27
Abstract: 1,078,200. Knitting-machines. WILLIAM COTTON Ltd. Dec. 22, 1964 [Dec. 27, 1963], No. 51074/63 Heading D1C. Hooks 9 are provided on the sides of the knocking-over bits and serve to hold the fabric down and the loops against the needle stems when the needles are raised particularly at the selvedges. In addition the hooks 9 serve to hold the loops about the needles during fashioning and during the production of tuckwork.
Patent GB-511861-A (GB)
Abstract: 511,861. Chlorinated rubber compositions. JONES, A. D., WATT, J. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 24, 1938, No. 5921. [Class 70] [Also in Group IV] The higher boiling products of the chlorination of acetals of polyhydric alcohols have the power of plasticizing or softening such materials as chlorinated rubber ; suitable acetals are glycol formal, glycol acetal, #-gamma dihydroxybetane acetal, adonitol dimethylene ether, mannitol triethylidene ether, erythritol mono- and di-methylene ether, pentaerythritol mono- and di-ethylidene ether, acetals of trioses, tetroses and pentoses, and mixtures of isomeric acetals such as are obtained, e.g., by reacting glycerol with acetylene.
Patent GB-1373214-A (GB)
Title: Composite materials
IPC: C08K3/00
Filed: 1971-11-04
Abstract: 1373214 Mulch sheet of polyurethane IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Oct 1972 [4 Nov 1971] 51292/71 Heading C1B [Also in Division C3] Seedlings may be grown in a layer of sand which is divided horizontally by a composite porous material which comprises a filler material consisting substantially of particles of compact shape which form classes of four different sizes and which form a volume fraction of the composite of at least 0À7, and a solid polymer the volume of which is less than the volume of the space between the particles of the filler. In Example 7 the composite porous material comprises a porous polyurethane containing glass spheres. The sand above and below this composite is saturated with water and seeds are planted in the upper layer of sand. The composite allows water to pass through to allow growth to continue and has a delaying effect on dehydration of the sand layer.
Patent GB-1444918-A (GB)
Title: Vehicle body having hydromechanical stabilising apparatus
IPC: B61F5/22
Filed: 1972-11-08
Abstract: 1444918 Railway vehicle undercarriages LUCAS INDUSTRIES 31 Oct 1973 [8 Nov 1972] 51477/72 Heading B7L [Also in Divisions G2-3] A control system for stabilizing apparatus for a rail vehicle body 10 which is provided with hydraulic jacks 13 for controlling the tilt of the body 10 about a horizontal roll axis 12 with respect to a bogie 11, comprises the combination of an angular accelerometer 15 having a balanced mass 20, a lateral accelerometer 18, first and second fluid pressure servomechanism 16, 19, having input members 29, 32 driven by the accelerometers 15, 18, respectively and output members 23a, 8, a control valve 14 for the jacks 13, the output members being operatively coupled to a movable part of the valve 14 whereby in use, lateral acceleration sensed by the accelerometer 18 causes the movable part of the valve 14 to be moved in one direction to cause angular movement of the body 10 by the jacks 13, which angular movement is sensed by the accelerometer 15 which has the effect of opposing the displacement of the movable part of the valve 14 in response to the lateral acceleration. Thus when the vehicle negotiates a track curve of constant radius the system will seek a new equilibrium position for the body 10 in which there is no lateral acceleration on an object within the body 10. The accelerometer 15 is rotatable about an axis through the centre of mass of a pivoted body 20 which is connected to an anti-backlash spring 21 and by a rod 29 to the resiliently flexible nozzle pin 26 of a known type of pilot valve arrangement 25 on the piston rod 24 of a piston 23 slidable in a fixed cylinder 22 of the servo-mechanism 16. The piston 23 is connected by a spring 17 to the accelerometer 18 which comprises a pair of pivoted identical masses 30, 31 whose centres of masses lie in the vertical plane between the pivot axes. The masses are coupled to a rod 32 forming the input member of the second servo-mechanism 19 also having a pilot-valve arrangement similar to the arrangement 25. The mass 31 is connected to an anti-backlash spring 33. If, e.g. a lateral acceleration displaces the rod 32 to the right in Fig. 1. the jacks are actuated to tilt the body 10 anticlockwise. This movement of the body is sensed by the mass 20 which tends to remain stationary as the body tilts thereby causing displacement of the piston 23 to the left to decrease the displacement of the rod 32. In another embodiment Fig. 2 (not shown), the output members of both servo-mechanisms are pivotally connected to the ends of a lever connected intermediate its ends by a link to the control valve for the jacks. However the pistons of the mechanisms are fixed and the cylinders thereof are movable and the pilot valves are mounted on the cylinders.
Patent GB-1029880-A (GB)
Title: Data exchanger
IPC: G06F13/38
Filed: 1964-12-21
Abstract: 1,029,880. Digital electronic computers. CONTROL DATA CORPORATION. Dec. 21, 1964 [Dec. 20, 1963], No. 51910/64. Heading G4A. Data transfer between the various functional units of a computer is via a data exchanger in which the format of the data may be altered under programme control to match the differing formats of input/output units, memory units &c. The exchanger comprises flip-flop registers for each of four six-bit characters, and controlled paths to shuffle between them. Code converters (binary to binary-coded-decimal) may be brought in for any character, and parity-bit generating and checking circuits are also provided.
Patent GB-1375416-A (GB)
IPC: C08K5/00
Filed: 1971-11-09
Abstract: 1375416 Cross-linking nitrogen-containing polymers MONSANTO Ltd 18 Oct 1972 [9 Nov 1971] 51951/71 Heading C3P An elastomeric diene polymer containing pendant nitrogen atom-containing groups is cross-linked by compounding it with an organic compound of a metal capable of complex formation with at least two of the nitrogen atoms. The cross-links can be broken by heating to a temperature at which the polymer flows freely, so that the composition can be prepared and moulded at such a temperature, but re-form on cooling. Exemplified polymers are elastomeric copolymers of 4-vinylpyridine, butadiene and optionally styrene. Many suitable metal compounds are mentioned, salts and complexes of nickel and zinc being preferred. Examples describe the use of nickel hexanoate, acetylacetonate and dibutyldithiocarbamate, the bis-(2-mercaptobenzothiazole) complexes of nickel and zinc and the bis-(2-mercaptobenzoxazole) complex of nickel.
Patent GB-1458620-A (GB)
Title: Flame-resistant resin composition
IPC: C08K5/1515
Filed: 1974-12-03
Abstract: 1458620 Flame retardant polytetramethylene terephthalate MITSUBISHI RAYON CO Ltd 3 Dec 1974 [4 Dec 1973 8 May 1974] 52257/74 Headings C3R and C3B A flame retardant composition comprises (a) 100 parts by weight of polytetramethylene terephthalate, (b) 3 to 40 parts by weight of a flame retardant of the formula in which n+m is the average degree of polymerization and is from 0 to 10, X is bromine or chlorine and i, j, k and I are 1 to 4, and (c) antimony trioxide, wherein the weight ratio of (b) to (c) is 0À25 : 1 to 6 : 1. The composition may contain glass fibres.
Patent GB-1410146-A (GB)
Title: Watercooled electric furnace cable terminal
IPC: H01R9/11
Filed: 1973-11-10
Abstract: 1410146 Cooling conductors D J GOODMAN 10 Nov 1973 52271/73 Heading H1A [Also in Divisions H2 and H5] A cable for supplying an electric arc furnace comprises stranded conductors 18 each enclosed in a respective perforated elastic tubular jacket 24 and surrounding a central elastic perforated coolant conduit 20, the whole being enclosed within an elastic casing 26. The jackets 24, conduit 20 and casing may all be of rubber. In use cooling water passes through the conduit and jacket perforations to circulate between the strands of the conductors. In a modified cable only alternate conductors are enclosed in a jacket.
Patent GB-1484266-A (GB)
Title: Curtain heading tape
IPC: D04B21/20
Filed: 1974-11-08
Abstract: 1484266 Curtain heading tape BRITISH TRIMMINGS Ltd 8 Nov 1974 [10 Nov 1973] 52297/73 Heading D1K The Specification is identical with that of Specification 1484265 but the claim relates to a plurality of rows of apertures 13 extending along the tape being aligned in columns 14 extending across the tape and the tape between each pair of adjacent apertures forming a curtain hook receiving formation.
Patent GB-1426348-A (GB)
Title: Automatic lumbering apparatus
IPC: B27B27/00
Filed: 1973-11-12
Abstract: 1426348 Sawing machine YOKOYAMA TEKKO KK 12 Nov 1973 52478/73 Heading B5L In an automatic lumbering apparatus including a main frame, a saw, e.g. a band saw 2, mounted in a vertical plane, and a laterally adjustable fence 4, the workpiece is moved past the saw 2 on conveyer rollers 5, 6 extending horizontally and at least one of which is angularly adjustable in the horizontal plane to urge the workpiece against the fence as it is fed past the saw. Each conveyer roller 5, 6 has one end supported by a bearing plate 13 mounted on a main bed of the apparatus, and has its other end supported by a bearing plate 16a mounted on an auxiliary bed 16 or 14 which is laterally spaced from the main bed. In one embodiment the rollers 6 are adjustable and one end of each is carried in the bearing plate 16a which is slidable along the bed 16 by means of a piston-and-cylinder device 15. A pair of presser rollers 26, 39 is provided driven from a motor 36. The roller 26 is carried by fixed and slidable bearings on a pivoted arm 25 moved by cylinders 38 and 37, and the angular position of the roller is adjusted by a cylinder 32 so that the roller 26 is always parallel to the rollers 6. The roller 39 is parallel to the fixed rollers 5 and is mounted on an arm 42 pivoted by a cylinder 44. Switches 45, 46 control the cylinders 37 and 44 so that the appropriate presser roller is lowered when a workpiece contacts either of them. In operation the rollers 6 and 26 are initially parallel and a workpiece is passed through the apparatus to trim a rough edge therefrom. The rollers 6, 26 are then moved to their angularly displaced positions and the position of the fence 4 is adjusted by a motor 11 via a rack 10 and gearing. A trimmed workpiece now passed through the apparatus is urged against the fence due to the orientation of the rollers and is thus cut to the desired width. In a second embodiment there are no presser rollers and the conveyer rollers each have a pulley driven from an electric motor by a common belt.
Patent GB-1312269-A (GB)
Title: Device for washing fabrics and articles of wearing apparel
IPC: D06F34/24
Filed: 1970-11-04
Abstract: 1312269 Laundry driers INDUSTRIE A ZANUSSI SpA 4 Nov 1970 [10 Nov 1969] 52541/70 Heading F4G [Also in Division D1] In a cabinet laundry washing and drying apparatus having two chambers 11 and 12 in which "delicate" and normal articles are hung on spaced rods 18 and sprayed with washing and rinsing liquids while being shaken and subsequently air-dried, drying air is circulated downwards through the chambers 11, 12 by fans 37, 38 and upwards through a common passage 15 between the chambers past a moisture condensing spray 40. The time and temperature of drying is individually adjustable for each chamber.
Patent GB-1417563-A (GB)
Title: Apparatus for identifying distances between markings on a data record
IPC: G06V30/224
Filed: 1972-11-14
Abstract: 1417563 Statistical apparatus SVENSKA DATAREGISTER AB 14 Nov 1972 [27 Jan 1972] 52607/72 Heading G4M Apparatus for identifying distances between markings on a data record comprises a reading device movable relative to the record, means for detecting the leading and trailing edges of the markings and for calculating the distance between markings therefrom and means for multiplying or dividing one of the calculated distances by a predetermined factor and for comparing the modified calculated distance with another calculated distance. The last two means are intended to prevent errors when classifying the distances as either long or short. As described, the record comprises a series of block bars separated by a white background, the spacing between the centre of the bars being either one or two units. The record is scanned from left to right by optical reader 2 and the signal passed to detector 4. One output of detector 4 is fed to counter 13 which produces a first output signal K which is 1 between the leading edge of a first block bar and the trailing edge of the next block bar i.e. lengths a, b and c, and a signal L which is for lengths d and e. The other outputs of 4 are B which is 1 across the black bars and 0 between and C which is the inverse of B. These signals are fed to AND gates 6 and 8, respectively, the other inputs of which are pulse trains of frequency f and 2f respectively. The AND gate outputs pass OR gate 10 and are fed via AND gates 11, 12 (which are enabled by signals K and L, respectively), to counters 14, 16, respectively. The resulting count in 14 for distance a represents distance x at frequency f, distance y at frequency 2f and distance z at frequency f and is equal to the distance a<SP>1</SP> between centres at frequency 2f. The counts are transferred to the corresponding stores 18, 20. The count corresponding to d<SP>1</SP> is then compared with a<SP>1</SP> using a<SP>1</SP> as reference. Arithmetic units 22, 24 can either multiply by 1À5 or multiply by 1À5 and divide by 2. As a<SP>1</SP> is known to be short it is multiplied by 1À5 and d<SP>1</SP> is compared with 1À5 a<SP>1</SP> at 26. d<SP>1</SP> is less and a short output is generated. Feedback from comparator 26 now causes d<SP>1</SP> to be multiplied by 1À5 and the reading corresponding to b<SP>1</SP> is entered into store 18. This is found to be > 1À5 d<SP>1</SP> by comparator 18 and a long output is generated and fed back to multiply b<SP>1</SP> by <SP>1.5</SP>/ 2 , i.e. 0À75. Comparison with e<SP>1</SP> shows e<SP>1</SP> to be long and this is in turn multiplied by 0À75. Comparison with c<SP>1</SP> then shows c<SP>1</SP> to be short. Recognition characters may be provided at each end of the record to detect the direction of reading and may be preceded by a white space at least 3 units long to ensure that the apparatus is initially zeroed.
Patent GB-1485499-A (GB)
Title: Memory circuit
IPC: H03K17/00
Filed: 1974-12-05
Abstract: 1485499 Semi-conductor memory INTERNATIONAL BUSINESS MACHINES CORP 5 Dec 1974 [20 Dec 1973] 52615/74 Heading H3T A memory circuit of the type having a pair of branches, connected in parallel, each branch including a pair of complementary FETs Q1, Q3 and Q2, Q4 in series, one transistor Q1, Q2 of each pair being capable of operating selectively in an enhancement or a depletion mode with the common connection, for example A, between the transistors in each branch being connected to both the control electrodes of the other pair has a bias control means to control the bias between the substrate and the non- commoned electrode of one transistor Q1, Q2 in each branch so that in a quiescent state of the circuit and the bias in a first condition the transistors are sustained in the enhancement mode with however no current flowing in either branch and so that with a second bias condition the said transistors operate in a depletion mode during an active state of the circuit resulting in a substantial current flow in one branch and with substantially equal load impedances 22, 24 connected to the non- commoned electrode of the other transistor Q3, Q4. As shown Vss is -5 volts and word line potential V1 is variable being - 5 volts in the quiescent state. If the memory is set to "1" then Q1, Q4 are ON and Q2, Q3 OFF, Q1, Q2 being in the enhancement mode but no current can flow in either branch. In the active state, for sensing the cell condition, the word line potential V1 is switched to -10 volts and Q2 now acts in the conductive depletion mode pulling the potential at A towards - 10 volts and turning Q4 ON harder and hence a significant current flows in the branch Q2, Q4. This current operates the long tailed pair 18, 20 to produce a current at the output 28. The read-out is not destructive for the potential at B changes from ground to -2 volts and stops any change in the state of Q1 or Q3. In the 0 state Q2, Q3 are ON, Q1, Q4 OFF and on changing the word line potential a current flows through branch Q1, Q3 turning sensing current off so that current does not flow at the output 28. To write in data the word line potential is raised to ground from - 5 volts and a negative pulse applied to bit drive line B1 or B0 as required. Alternatively the voltage Vss can be varied to sense the cell output leaving V1 fixed, but to write in data both V1 and Vs must rise at the same time applying a negative pulse to bit drive line B1 or B0. The memory circuit can be used in a conventional matrix array (Fig. 3, not shown).
Patent GB-1450002-A (GB)
Title: Pyridoindoles
Inventor: BERGER JOEL GILBERT
IPC: C07D471/04
Filed: 1974-12-05
Abstract: 1450002 Pyrido[4,3-b]indole derivatives ENDO LABORATORIES Ine 5 Dec 1974 [6 Dec 1973 8 Nov 1974] 52682/74 Heading C2C The invention comprises compounds of formula and their pharmaceutically suitable salts, wherein (a) either Y is H and X is H, Cl, Br, Me, Me 3 C or MeO, or Y is CF 3  and X is H, and (b) R is H; 3-chloro-2-butenyl; 2-bromoallyl; benzyl; benzyl ring - substituted wtih methyl, methoxy or chloro; phenethyl; 3-phenylpropyl; 3 - phenylpropyl ring - substituted with chloro, bromo, or methoxy; furfuryl; 2-thenyl; C 1 -C 5  alkyl; C 3 -C 5  alkenyl; C 3 -C 5  alkynyl; cinnamyl; cinnamyl ring - substituted withchloro, bromo, or methoxy; 3-phenyl-2-propynyl; C 3 -C 7  cycloalkyl; C 4 -C 8  cycloalkylmethyl; (methylcyclopropyl)methyl; (cis- 2,3 - dimethylcyclopropyl)methyl; C 6 -C 8  cycloalkenylmethyl; C 6 -C 8  cycloalkadienylmethyl; (2,3 - dimethylcycloprop - 2 - en - 1- yl)methyl; exo - 7 - norcarylmethyl; (cis - 1,6- dimethyl - endo - 3 - norcaren - 7 - yl)methyl; (4 - methylbicyclo[2.2.2]oct - 1 - yl)methyl; (4 - methylbicyclo[2.2.2.]oct - 2 - en - 1 - yl)- methyl; (bieyelo[2.2.2]hept - 2 - yl)methyl; (bieyelo[2.2.2]hept - 2 - en - 5 - yl)methyl; 1 - adamantylmethyl; or 2 - adamantylmethyl. In examples, these compounds are prepared by (1) reducing with BH 3  the analogous 1,2,3,4- tetrahydropyridoindoles; (2) [where R= R<SP>1</SP>CH 2 ] reducing (i) the 2-acyl-1,2,3,4-tetrahydropyridoindoles with BH 3 , or (ii) the 2 - acyl - hexahydropyridoindoles with BH 3  or NaAlH 2 (OC 2 H 4 oMe) 2 , "acyl" being R<SP>1</SP>CO; (3) [for R = H] reacting (e.g.) a 2-cyclopropylmethyl compound with (e.g.) ClCO 2 Et and hydrolysing the ethyl pyridoindole-2-carboxylate so-formed; (4) [for R#H] substitution in the 2-position; (5) effecting the conversion R=2,3-dimethylcycloprop - 2 - enylmethyl to 2,3 - dimethylcyclopropylmethyl, with H 2 /Pd-C. Preparative details are also provided for R<SP>0</SP>-N(CH 2 CH 2 CO 2 Et) 2 , ethyl 1-R<SP>0</SP>-piperid-4- one-3-carboxylate and 1-R<SP>0</SP>-piperid-4-one, where R is cyclopropyl. Therapeutic compositions having analgesic and sedative, and in some cases major or minor tranquilizing, muscle relaxant and hypotensive activity, comprise compounds of the above formula, and may be administered orally, parenterally or rectally.