baber/WOPTO huggingface dataset:
Patent GB-1372011-A (GB)
Title: Current conductor rail
IPC: E01B5/08
Filed: 1972-09-18
Abstract: 1372011 Electric conductor rails H K PORTER CO Inc 18 Sept 1972 [30 Sept 1971] 43102/72 Heading B7L  A current conductor rail system comprises a plurality of endwise aligned current conductor rails, as 10, which are coupled together, each rail 10 comprises, an I-section beam formed of ferrous metal having a channel 14 extending along each side thereof, and an elongated auxiliary beam 18 of highly electrically conductive metal, e.g. copper or aluminium, disposed in each channel 14 and extending along the length of the rail, the beams 18 each having a projecting rib 22 to serve as a key for attachment thereto of a splice plate 20, the splice plates 20 being commonly keyed to successive rails at their juncture to form a join ttherebetween, bolts 24 being used to hold the assembly at each joint in tightly clamped relation. Similar bolts may be used to clamp the auxiliary beams 18 to the rails 10. If desired the rails may have an auxiliary beam on one side only with corresponding splice plates 20 on the same side only at the rail joints and with the bolts being either directly on the rail at the other side or on a short length of auxiliary beam provided at the joints. The co-operating faces of the rail and auxiliary beams are shaped to leave a gap therebetween which gap is closed on tightening of the bolts to provide a tight fit. The contacting surfaces of the rail and the auxiliary beams are coated with an oxide inhibitor to maintain a satisfactory electrical connection between the parts.
Patent GB-955140-A (GB)
Title: Improvements in disc brakes
IPC: F16D65/095
Filed: 1959-12-18
Abstract: 955,140. Disc brakes. GIRLING Ltd. Dec. 19, 1960 [Dec. 18, 1959], No. 43187/59. Heading F2E. A spot type disc brake a caliper housing consists of a rigid rectangular inner plate 45 bent to a shallow Vee form to which hydraulic cylinder blocks 46 on opposite sides of the brake disc are secured, the plate 45 having a slot for the passage of a periphery of the brake disc. A sheet metal pressing 48, bent to form an inverted Vee form, is provided on the radially outer sides of the blocks 46 and welded at 49 to the ends of plate 45 to rigidly hold the blocks 46. A central opening is provided in the pressing 48 to permit the insertion and removal of the friction pads 51 through the opening. Specification 881,423 is referred to.
Patent GB-1275473-A (GB)
Title: Erythromycylamine and process for preparing same
IPC: C07H17/08
Filed: 1969-08-29
Abstract: 1275473 Erythromycin derivatives ELI LILLY & CO 29 Aug 1969 [29 Aug 1968] 43215/69 Heading C2A Erythromycylamine which melts at 125 to 127 C. and has the formula is prepared by catalytic hydrogenation of erythromycin oxime (IIa), erythromycin-hydrazine adduct (IIb) or the N<SP>1</SP>-isopropylidene derivative (IIc) of this adduct, which compounds have the general formula wherein R has the meanings The oxime and the hydrazine adduct are prepared by reacting erythromycin with hydroxylamine hydrochloride, and with hydrazine respectively, in a solvent such as methanol. The isopropylidene derivative is prepared by reacting the hydrazine adduct with acetone. These compounds are hydrogenated in an inert solvent such as acetic acid or preferably water containing 1 to 2% #-gluconolactone, glucoheptonolactone or other lactones of a sugar acid, using a noble metal catalyst such as platinum, palladium, ruthenium or rhodium, either as the free metal or the oxide. The oxime or hydrazine adduct are hydrogenated at about 500-2000 p.s.i., while pressures of 50-100 p.s.i. are preferably used in the caes of the isopropylidene derivative. By hydrogenating the isopropylidene derivative in a neutral medium, e.g. ethanol it may be converted to the corresponding N-isopropyl derivative of the erythromycin-hydrazine adduct. This represents an intermediate in the erythromycylamine formation and by further hydrogenation in an acidic medium the isopropyl derivative yields erythromycylamine. Pharmaceutical compositions having antibacterial activity against Gram-positive and Gramnegative micro-organisms comprise the antibiotic erythromycylamine together with a pharmaceutically acceptable diluent or carrier.
Patent GB-910033-A (GB)
Title: A process for the production of synthetic polypropylene filamentary materials
IPC: C08L69/00
Filed: 1960-12-15
Abstract: Crystalline polypropylene is mixed with 1-20% by weight of a polycarbonate resin and the mixture is melt-spun to form filamentary materials.  Preferably, 3-10% of the polycarbonate is used. Preferred polycarbonates have a softening point of 100 DEG -300 DEG C. and are derived from a compound of the general formula <FORM:0910033/IV(a)/1> wherein R is either (a) a straight or branched chain alkylene radical containing from 1 to 8 carbon atoms which may be substituted by one or more halogen atoms or by one or more mono- or poly-substituted aromatic radicals or (b) a radical of the formula <FORM:0910033/IV(a)/2> <FORM:0910033/IV(a)/3> <FORM:0910033/IV(a)/4> X1, X2, X3, and X4, which may be the same or different, each representing a hydrogen atom, an alkyl radical containing from 1 to 3 carbon atoms, a halogen atom or a radical of the formula <FORM:0910033/IV(a)/5> 4,41-Dihydroxy-diphenyl-2,2-propane polycarbonate is specified.  Other specified additives include diatomaceous earth, talc, silica and titanium dioxide.  Filamentary materials so made show an enhanced affinity for dyes.
Patent GB-908617-A (GB)
Title: Improvements in or relating to polymers derived from epsilon caprolactam
IPC: C08G69/44
Filed: 1960-12-15
Abstract: A process for the preparation of a polymer comprises interacting S -caprolactam with 2-amino-1:3-propanediol, a 2-amino-2-alkyl-1:3-propanediol or a 2-amino-2-hydroxyalkyl-1:3-propanediol.  The examples describe the preparation of polymers soluble in formic acid, phenol or m-cresol from S -caprolactam and:-(I) to (III) tris(hydroxymethyl) aminomethane and (IV) 2-amino-2-methyl-1:3-propanediol.
Patent GB-960088-A (GB)
Title: Improvements in or relating to indexable key connectors
Inventor: SHEARER JACK FENTON
IPC: H01R13/645
Filed: 1962-11-15
Abstract: 960,088. Two part couplings. PYLE-NATIONAL CO. Nov. 15, 1962, No. 43292/62. Heading H2E. The polarizing key of a multipin plug and socket connector is mounted on a sleeve attached to the plug housing. The sleeve has two externally-projecting radial keys 62, spaced 90 degrees apart which mate with fixed keyways in the socket housing. The sleeve also has a number of internally projecting radial lugs 63 which can be mated with the notched end of the housing 24 in a number of selected positions. The sleeve is locked in position by a screw-ring 70. The plug and socket parts of the connector both consist of a contact block, including a resilient disc to grip the neck of the contacts, within a housing, the forward part of the socket block being of reduced diameter to house the sleeve adapter between the block and the housing, the latter having the keyways, to accommodate the keys, 62. The two housings are held together by a screw-ring . In a modification, Figs. 7-15 (not shown), the sleeve adapter has a pair of keyways instead of the pair of projections.
Patent GB-1116715-A (GB)
Title: Heptene derivatives
IPC: C07C69/007
Filed: 1966-05-06
Abstract: 3,7,7-Trialkyl-5-heptenols and 3,7,7,-trialkyl-4-heptenols may be obtained by saponification of the corresponding esters.  The saponification may be effected by a conventional method, e.g. by warming the ester in the presence of water with a small amount of an alkali metal hydroxide.  In an example a mixture of 3,7-dimethyl-5-octen-1-ol and 3,7-dimethyl-4-octen-1-ol is obtained by saponifying a mixture of the corresponding esters.
Patent GB-917972-A (GB)
Title: Aminosilicon-alkylsilicate copolymers
IPC: C07F7/18
Filed: 1959-12-22
Abstract: A copolymer comprising (1) at least 1 unit of the formula <FORM:0917972/IV(a)/1> wherein each Z is H, a monovalent hydrocarbon or amino-hydrocarbon group, R is a divalent hydrocarbon radical of at least 3 C atoms, the Z2N- group is attached to at least the third C removed from the Si atom, R1 is an alkyl group, R2 is a monovalent hydrocarbon radical, a is 0, 1 or 2, b is 0, 1 or 2, and (a+b) is 0, 1 or 2, and (2) at least one unit of the formula <FORM:0917972/IV(a)/2> wherein R3 is an alkyl group and c is 1, 2 or 3, with or without (3) at least one conventional siloxane unit containing saturated or unsaturated hydrocarbon radicals, may be made by heating a mixture of siloxane (1) and the silicate (2), preferably in the presence of a basic catalyst, e.g. an alkali metal hydroxide or silanolate or a quaternary ammonium hydroxide, and if desired in an inert atmosphere.  In a typical example (1) a mixture of an ethoxy-terminated aminopropylsiloxane oil and tetraethyl orthosilicate, with potassium dimethylsilanolate as catalyst, was heated at 155 DEG C. for 16 hours, and finally at 188 DEG C. with Cs(OH) to complete the condensation, to yield an oil; similar preparations are given of <FORM:0917972/IV(a)/3> and <FORM:0917972/IV(a)/4> Uses: As polishes for painted steel surfaces, e.g. filing cabinets.  Specifications 882,051 and 882,052 are referred to.
Patent GB-1458169-A (GB)
Title: Fibre optic connector with axial tolerance relief
IPC: G02B6/40
Filed: 1975-10-23
Abstract: 1458169 Connector for optical fibres ITT INDUSTRIES Inc 23 Oct 1975 [29 Oct 1974] 43565/75 Heading G2J A two-piece connector has hollow pins 15  receiving the fibre bundle 26a (or a single fibre) and the pins, that are abutted when connected, are slidably and resiliently retained in the sleeve 25 by an O-ring 11 fitting in a groove 23 and engaging a sleeve 19 that in turn is restrained from backward movement by a spring retaining finger 30.
Patent GB-922605-A (GB)
Title: Stator and rotor structure for salient pole dynamo-electric machines
IPC: H02K3/52
Filed: 1960-12-19
Abstract: 922,605. Securing field windings. FIAT S.p.A. Dec. 19, 1960 [Dec. 21, 1959], No. 43599/60. Class 35. [Also in Group XXII] Salient pole windings are secured by metal plates 11, 12 under the pole-shoes 5 and over the - former end-plate 10, and secured to the poleshoes by spot-welding, the ends of these metal plates being joined by U-shaped brackets 13, welded to them and serving to brace them against the pole-end. The pole-end is faced by an insulating lamination. The coil-former, e.g. of resin-impregnated cardboard, comprises a body part 7 and top plate 10, each slotted (9) at one end to allow fitting.
Patent GB-1442355-A (GB)
Title: Control mechanism for a reflex camera
IPC: G03B19/12
Filed: 1973-09-19
Abstract: 1442355 Reflex camera mechanism ASAHI KOGAKU KOGYO KK 19 Sept 1973 [20 Sept 1972] 43900/73 Heading G2A In a reflex camera, a drive member 19 responsive to the shutter release control pivots the mirror 2 from a lower position to an upper position, and another means independent of the shutter release control can also pivot the mirror from the lower position to the upper position, in which case a locking lever 27 retains member 19 in its original position even though the mirror has been moved to its upper position. Member 19 is urged anticlockwise by a spring 13, which is tensioned by anti-clockwise movement of a charge lever 24 (see also Fig. 4 not shown) during winding on the film. Anti-clockwise movement of member 19 is prevented by a pin 21 on a lever 18, whose movement is in turn prevented by engagement of a contact member 22 thereon with a locking lever 23. When the shutter release button is pressed, lever 23 is pivoted anti-clockwise from its Fig. 1 position to its Fig. 3 position, thus releasing member 22 and lever 18, and hence member 19. A roller 15 on one arm of member 19 engages a lever 16 which pivots anti-clockwise to close the diaphragm to a pre-set value. A roller 17 on another arm of member 19 engages a lever 5 and pivots it clockwise, lever 5 in turn engaging a pin 3 fixed to the mirror 2 and hence lifting the latter from the Fig. 1 position to the Fig. 3 (exposure) position. At the same time the upper end of lever 18, pivoting anticlockwise, engages a lever 7 which in turn pivots a lever 8 which opens the camera shutter to effect an exposure. After exposure, the components are returned to the position of Fig. 1, the mirror 2 being pivoted back to its lower position by a loading spring 4 engaging pin 3. In an alternative way of raising the mirror and closing the diaphragm to the pre-set stop without using the drive member 19, levers 5 and 16 are moved by manual means, not shown. In raising the mirror, pin 3 engages a locking member 27 and pivots it anti-clockwise, so that its lower end 27b engages roller 15 and prevents any movement of drive member 19. Thus when the shutter release button is now pressed, lever 18 is released to pivot anti-clockwise under the action of a spring 28 linking it to lever 16, so operating levers 7 and 8 to operate the shutter. Since drive member 19 takes no part in this operation, there is a reduction in noise and vibration, which may be an advantage in certain types of photography.
Patent GB-1020958-A (GB)
Title: Improvements in conveying and grading apparatus
IPC: B07B1/46
Filed: 1963-11-07
Abstract: 1,020,958. Screening apparatus. W. CUTLER Jan. 18, 1965 [Nov. 7, 1963], No. 43941/63. Heading B2H. In a size grading machine for fruit or vegetables of the type in which spaced parallel bars 12 are vibrated to cause articles to travel along the bars, and in which articles below a certain size fall between the bars, those articles which do not fall between the bars being caused to travel to another grading section or to a discharge outlet, a deflector plate 42 is arranged below the bars and is caused to move relatively towards and away from the bars to dislodge any articles which may have become wedged between the bars, the maximum movement of the deflector plate towards the bars terminating below the level of the undersurface of the bars. The machine is generally of the type described in Specifications 910,964 and 989,099 and comprises an upper conveyer assembly 10 mounted on a lower frame assembly by means of resilient wooden slats, the lower frame assembly, which includes a trough, being supported from the base frame of the apparatus by means of longer resilient wooden slats. An electric motor mounted on the base frame imparts vibratory motion to the lower frame assembly through a connecting rod. The upper conveyer assembly contains the parallel bars 12 arranged in grading sections, each bar of each section being bent at its discharge end as shown at 14 and being secured at that end to the other end of a bar of the adjacent section. A bridge member 22 extending under, and across the width of the bars, is vertically adjustably supported on legs (not shown) secured to the lower frame assembly. The deflector plate 42 is mounted across the width of each grading section and is welded to a shaft 30 pivotably supported at its ends in bearings 32 provided in mounting plates 34 secured to brackets 36 on the upper conveyer assembly 10. The free or discharge end of the plate 42 is secured at each side to guides 62, 64 which co-operate with a roller 60 rotatably mounted adjacent each end of a shaft 58 supported in bearings in plates 56 supported on bars 54 welded to slide blocks 50 vertically adjustable on bars carried by a bracket 46 at each side of the discharge end of each grading section. In operation, upon oscillation of the upper conveyer assembly 10 relative to the lower frame assembly, the guides 62, 64 are caused to ride up and down the peripheries of the rollers and to effect movement of the deflector plate 42 towards and away from the bars 12 to dislodge any articles wedged therebetween. As the articles approach the discharge end of each grading section, the articles which are hanging vertically between the bars 12 are tilted by the bridge member 22 into a horizontal position and are thence deposited on the next grading section. Those articles which have passed between the bars fall on the deflector plate 42 and are directed from the lower end 44 thereof to the lower frame assembly of the machine.
Patent GB-1185898-A (GB)
Title: Apparatus for Particle Classification and Analysis
Inventor: COULTER WALLACE HENRY
IPC: G01N15/12
Filed: 1967-09-28
Abstract: 1,185,898. Particle counting apparatus. COULTER ELECTRONICS Ltd. (W.H. Coulter). Sept.28, 1967, No.44138/67. Heading G1N. In a "Coulter counter" it has been found that the impedance of different kinds of particle varies with the supply frequency, especially at R.F. The Specification describes at length how this may be used to derive "signatures" for different kinds of particles using pulse counting and phase/ frequency measuring techniques. In a simple case the "gap" may be energized with a single R.F. and measurements made of either the resistive and reactive components using a phase sensitive detector, or the frequency modulation and amplitude modulation components of the signal. Pulses, (due to the passage of a particle), for each component of the signal having an amplitude within predetermined limits may be counted. In a more sophisticated arrangement three frequencies are applied simultaneously e.g. a D.C. or low frequency and two different R. F. S. The signal is analyzed into the amplitude of the D. C. and the quadrature components of each R. F. to provide a detailed signature. Compensation for source impedance may be provided by tuning the sensing zone to anti-resonance at the supply frequency.
Patent GB-1355109-A (GB)
Title: Esters of -3,5-disubstituted-4-hydroxy-phenyl-alkanols and their use as stabilizers
IPC: C07C39/11
Filed: 1971-09-22
Abstract: 1355109 Esters of -(3,5-disubstituted-4-hydroxyphenyl)alkanols GAF CORP 22 Sept 1971 [28 Sept 1970] 44225/71 Heading C2C [Also in Divisions C3 and C5] The invention comprises compounds of formula wherein R<SP>1</SP> and R<SP>11</SP> each represents a C 1-24  alkyl group, a C 7-18  aralkyl or a C 6-18  cycloalkyl group; R represents a C 1-25  alkyl group, a C 6-18  cycloalkyl group, a C 6-18  aryl group or. a C 7-18  arylalkyl group; m represents an integer of from 2 to 10 and n represents an integer of 1 to 9. The following compounds are prepared in the examples: terephthalate ester of 3-(3,5-di-tert.- butyl - 4 - hydroxyphenyl) - propanol; 1,2,4- benzenetricarboxylate of 3 - (3,5 - di - tert.- butyl - 4 - hydroxyphenyl) - propanol; stearate of 3 - (3,5 - di - teft. - butyl - 4 - hydroxyphenyl)- propanol; 3,6 - endomethylene - 1,2,3,6- tetrahydrophthalic acid ester of 3 - (3,5 - ditert. - butyl - 4 - hydroxyphenyl) - propanol; dimer acid ester of 3-(3,5-di-tert.-butyl-4- hydroxyphenyl) - propanol; terephthalate ester of 3 - (3,5 - di - tert. - amyl - 4 - hydroxyphenyl)butanol-1. The intermediate 3(3,5-di-tertiary butyl-4- hydroxyphenyl)-propanol is obtained by reduction of 3,5 - di - tert. - butyl - 4 - hydroxyphenyl)- propanol.
Patent GB-1276825-A (GB)
Title: Memory core submodule
Inventor: RATHJEN J FRED
IPC: G11C11/06
Filed: 1970-09-16
Abstract: 1276825 Magnetic storage arrangements SINGER CO 16 Sept 1970 [28 Nov 1969] 44228/70 Heading H3B A magnetic core store, Figs. 1 and 3, comprises an aluminium heat sink 12 sandwiched between a pair of printed circuit boards 14, 16, a copper shield sheet 18, 20 mounted on each outer surface of a printed circuit board, and an array of toroidal storage cores 26, 28 edgemounted on a layer of double-sided adhesive tape 22, 24 adhered to each of the shield sheets. The assembly is enclosed by a pair of plastics cover sheets 32, 34 which are secured to the heat sink in spaced-apart relationship by fasteners 36. Connector pins 30 are mounted on the printed circuit boards and extend outwardly through flanged portions of the heat sink. Also mounted on the boards are flat packs of selection diodes 38 and terminals 40 for solder connections. Three conductors 44, Fig. 5, for core switching, inhibiting, and sensing, pass through each core and are connected to various circuits in the printed circuit boards. A resistor temperature sensor 42 is connected between two of the pins 30.
Patent GB-1481880-A (GB)
Title: Ring spinning and ring twisting machine
IPC: D01H7/62
Filed: 1974-10-14
Abstract: 1481880 Lubricating MASCHINENFABRIK RIETER AG 14 Oct 1974 [19 Oct 1973] 44374/74 Heading F2A [Also in Division D1] A ring spinning or twisting machine with lubricated travellers has an oil duct 17 in each ring rail which is supplied from an oil pump via a common supply line with branch ducts 5 containing metering devices, each branch duct being arranged on the machine such that its end 14 is moved into the oil duct 17 through an opening, thereby to establish and interrupt oil feed at a given movement of the ring rail. The position at which feed is established is that adapted for underwinding and oil is fed in when the thread guides are swung up for doffing by a pump which operates from the same compressed air line as swings the guides up. The amount of oil supplied is determined by the metering devices which may be adjustable or replaceable.
Patent GB-1485438-A (GB)
Title: Anthraquinone dyes
IPC: C09B1/34
Filed: 1974-10-14
Abstract: 1485438 Anthraquinone dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Sept 1975 [14 Oct 1974] 44397/74 Heading C4P The invention comprises water-soluble dyestuffs which in the form of the free acid have the general formula wherein one of X and Y is -SO 3 H and the other -NHCOOR wherein R is an alkyl, cycloalkyl or aralkyl radical having up to 8 carbon atoms. They are prepared by reacting a 1 - amino - 2 - sulpho - 4 - (3<SP>1 </SP>- amino - 4<SP>1</SP>- sulpho- or 3<SP>1 </SP>- sulpho - 4<SP>1</SP> - amino-)anilino anthraquinone with a chloroformic acid ester of the formula ROCOC1 where R is as above. The dyestuffs dye nylon 6, 11 and 66 in blue shades.
Patent GB-986089-A (GB)
Title: Electrical circuit for rejecting short duration pulses
IPC: G01S13/76
Filed: 1963-11-11
Abstract: 986,089. Transistor pulse discriminating circuits; pulse radar. BENDIX CORPORATION. Nov. 11, 1963 [Dec. 7, 1962], No. 44416/63. Headings H3T and H4D. In a circuit for eliminating pulses less than a predetermined duration, the pulses are fed to an AND gate 12 via an amplifier 11 and via a delay line 10. The AND gate will only provide an output if the pulse has a duration in excess of the transit time of delay line 10, a positive feedback loop 13 being provided to sustain the output of the gate for the duration of the pulse received from the output of the delay line 10. As described, pulses at 21 are sharpened by capacitor 29 and amplified by transistors 23, 24, capacitor 39 providing further sharpening. The AND gate 12 comprising semi-conducting diodes 43, 45 only provides full output when both diodes are cut off by coincidence of delayed pulse from 10 and amplified pulse from transistor 24. The gated output is passed via an emitter follower 41 and a network 31 to provide positive feedback to the base of transistor 23 which sustains the output until the end of the delayed pulse from 10. This ensures that the duration of the output pulse is thr same as that of the pulse fed to terminal 21. Diode 52, forward biased below its threshold of conductivity, eliminates spurious outputs from gate 12 when only one diode is cut off. The amplitude of pulses in the feedback path 13 is limited to the threshold value of diode 56, thus preventing saturation of transistor 41. Pulse radar.-The invention may be applied to the elimination of short duration spurious pulses from the transponders of an air traffic control secondary radar system of the type in which the effect of side lobes of the transmitter is suppressed by the use of sequential pulses from omnidirectional and rotating transmitting aerials.