baber/WOPTO huggingface dataset:
Patent GB-1410396-A (GB)
Title: Means for synchronizing clocks in a time ordered communications system
IPC: G01S11/08
Filed: 1973-09-18
Abstract: 1410396 Master and slave clock systems BENDIX CORP 18 Sept 1973 [2 Oct 1972] 43729/73 Heading G3T In a system for periodically checking and correcting a remote station clock (e.g. in an aircraft) to maintain it synchronized with a master clock (e.g. on a ground station), the local clock is driven at a local frequency derived from a local crystal controlled oscillator 10 Fig. 1 and synchronizing pulses are transmitted by radio to the or each remote clock station. Correction is effected upon receipt of each synch pulse and is also continuously effected to compensate for oscillator drift in the periods between synch pulses, the correction being by adding or deleting pulses from the local oscillator output by means of a gate circuit arrangement 14 (detailed in Fig. 3 (not shown)). In the remote station each synchronizing signal received is decoded to produce an external reference pulse (ERP) a predetermined time, dependent upon the delay in the decoding process, after the synch pulse. In addition a digital frequency divider 16 (16a in Fig. 2 (not shown)) produces an internal reference pulse (IRP) for every n<SP>th</SP> pulse applied to it and sends out signals 18 to operate known clock equipment not described. If the local clock is exactly synchronized the IRP would be produced at the same instant as the ERP. The remote station also generates a respective time window symmetrically about each IRP from the divider 16. If an ERP occurs during the period of the window the time difference or error between the ERP and IRP therein and its sign are determined by a unit 20 including an aperture generator (32) Fig. 2 (not shown), which produces a pulse which is started by either the ERP or IRP (whichever is first) and is terminated by the other, and a pulse rate generator (34) which produces a number of pulses as a measure of the time difference and which are stored in a counter (42). A synch pulse and ERP will not be present for a large percentage of IRPs; a flip-flop (30) indicating after each window whether an ERP was received. From the measured time difference a divider (62) in a calculator 22 produces a correction signal Ea as a measure of the instantaneous misalignment of the local clock. This signal together with its sign is applied to the gate circuit arrangement 14 to add or subtract a pulse from the oscillator 10 output. Further correction is effected to correct for oscillator drift and maintain the local clock synchronized to the master in the periods between the correction signals Ea. This is effected by determining the first and second derivatives of the time difference between ERP and IRP to produce signals Eb and Ec respectively. These signals are applied to a frequency controller 24 including an offset register (75) and an offset generator (77) to produce a correction signal Ef which is a pulse train. Ef is applied continuously to the gate arrangement 14 to add or subtract pulses from the oscillator output, whereas correction pulses Ea are applied only when an ERP pulse is received.
Patent GB-1387089-A (GB)
Title: Metalization process for the manufacture of hybrid integrated  circuits
IPC: H05K1/09
Filed: 1973-09-18
Abstract: 1387089 Printed circuits BENDIX CORP 18 Sept 1973 [2 Oct 1972] 43730/73 Heading H1R A printed circuit board is manufactured by depositing, e.g. by sputtering, a layer 11 of nickel-chromium on a substrate, then a layer 12 of nickel, e.g. by sputtering, then a layer 14 of nickel-boron, e.g. by electroless plating and then optionally a plated gold layer 13, and the assembly is heat treated to anneal and stabilize the resistive nickel-chromium layer. A pattern of resistive and/or conductive tracks is produced by masking and etching techniques. The presence of the nickel-boron layer is stated to permit low-temperature solder connections or ultrasonic wire bonding to be made, and so the assembly requires a shorter heat-treatment time. Assembly instructions or the like may be marked on the board by depositing a further layer of nickel-boron and masking and etching to leave the desired marking. Semi-conductor devices for mounting on the board advantageously have their connection regions coated, like the board, with successive layers of nickelchromium nickel, nickel-boron and optionally gold.
Patent GB-1115400-A (GB)
Title: Firearm shot cartridges
IPC: F42B7/08
Filed: 1966-09-30
Abstract: 1,115,400. Shotgun cartridges. KAWAGUCHIYA HAYASHI JUHO KAYAKU TEN KABUSHIKI KAISHA. 30 Sept., 1966 [14 Oct., 1965; 26 April, 1966], No. 43759/66. Heading F3A. A shot cartridge comprises a case 1 containing a powder charge 3, an internal sleeve 4, a cushion guide 5 engaged within the sleeve 4 so as to be prevented from being displaced from within the sleeve and having a base in contact with the powder charge, and shot 6 supported above the cushion guide within the sleeve, the cushion guide being elastically flexible in the direction of the length of the cartridge and acting to cushion the impact on firing and thus reduce the backward force on a gun and to " guide " the shot from the cartridge case and gun barrel. The sleeve 4 may be elastically flexible, and both the sleeve and cushion guide may be made from synthetic resin. The cushion guide may be provided with laterally-extending through holes 10 and thin, integral strengthening ribs 19 and may be secured in the sleeve 4 by means of an extension 21 of the sleeve extending into a neck located between a rim base 9 and a wedge-shaped projection 17 of the cushion guide. A small gap 24 is left between the extension and rim base. The shot-containing part of the sleeve 4 may be provided with a number of longitudinal slots.
Patent GB-1117453-A (GB)
IPC: F16B5/00
Filed: 1965-10-15
Abstract: 1,117,453. Attaching facing sheets. R. RICHTER. 15 Oct., 1965 [17 Oct., 1964; 7 Dec., 1964], No. 43770/65. Headings E1K and E1W. [Also in Division F2] A facing sheet 1, e.g. of plaster-board with hard-board facing sheets, which may line a ceiling or wall, or form one face of a partition, is attached to a sheet metal framing member or stud 4 by staples 11 which are driven into parallel rows of perforations formed between ridges 5 along the web of the framing member. Each stud may comprise a single box-section member with opposed perforated surfaces, (Fig. 8, not shown), or a single channel 22, (Fig. 6, not shown), with perforated flanges, or it may be formed from opposed channel-section members 25, (Fig. 7. not shown), each with a perforated web, and interconnected by spacing pieces 26. The framing members may be channel-sectioned (as shown, or as in Fig. 5, not shown), or triangular-sectioned, T-sectioned. or H-sectioned, (Figs. 9-11, not shown). The perforations are formed by teeth punched out in a direction away from the facing sheets, and leaving ridges which are convexly curved towards the facing sheets.
Patent GB-1011476-A (GB)
Title: A tarpaulin for harvested agricultural products standing in the field in sheaves or heaps
IPC: A01F25/13
Filed: 1964-10-29
Abstract: 1011476 Protecting harvested crops B P ALLERSMA 29 Oct 1964 [31 Oct 1963] 44073/64 Index E1A 758 A tarpaulin for harvested crops such as sheaves and stooks consists of alternate horizontal strips of plain and box pleated flexible material secured together in substantial overlapping arrangement whereby the crops are protected and ventilated.
Patent GB-963744-A (GB)
Title: Method of separating acetylene from ethylene
IPC: C07C7/11
Filed: 1960-12-23
Abstract: Ethylene and acetylene are recovered separately from gases containing them by first contacting with a hydrocarbon solvent which dissolves both acetylene and ethylene then flowing the solution countercurrent to an immiscible solvent selective for acetylene and recovering acetylene from the solvent therefor and ethylene from the hydrocarbon solvent. Extraction with the hydrocarbon solvent may be effected at - 70 DEG  C. to ambient temperature and 5-15 atmospheres, the solvent being hexane, cyclohexane, decane, dodecane or kerosene; a small amount of the acetylene solvent may be added to ensure solution of the acetylene. Suitable acetylene solvents are dimethylformamide, diethylformamide and dimethylacetamide, to which may be added a small amount of water. C3 and heavier hydrocarbons are preferably removed beforehand by an oil absorption step and carbon dioxide may also be removed by monoethanolamine. Alternatively the carbon dioxide is dissolved in the hydrocarbon solvent and is recovered therefrom before removal of the ethylene or together with the ethylene from which it is subsequently separated or the carbon dioxide is transferred to the acetylene solvent by using excess solvent or by adding monoethanolamine and the solvent treated to recover acetylene first, then the carbon dioxide. Specification 839,200 is referred to.ALSO:Ethylene and acetylene are recovered separately from a gas-mixture containing them by first contacting with a hydrocarbon solvent which dissolves both acetylene and ethylene then flowing the solution countercurrent to an immiscible solvent selective for acetylene and recovering acetylene from the solvent therefor and ethylene from the hydrocarbon solvent.  The initial gas mixture may be that obtained by pyrolysis of hydrocarbon feedstocks and in examples contains, in addition to ethylene and acetylene, carbon dioxide, carbon monoxide, methane, hydrogen and in one case also, nitrogen.  Extraction with the hydrocarbon solvent may be effected at -70  DEG C. to ambient temperature and 5-15 atmospheres, the solvent being hexane, cyclohexane, decane, dodecane or kerosene; a small amount of the acetylene solvent may be added to ensure solution of the acetylene.  Suitable acetylene solvents are dimethylformamide, diethylformamide and dimethylacetamide, to which may be added a small amount of water.  C3 and heavier hydrocarbons are preferably removed beforehand by an oil absorption step and carbon dioxide may also be removed by monoethanolamine.  Alternatively the carbon dioxide is dissolved in the hydrocarbon solvent and is recovered there-from before removal of the ethylene or together with the ethylene from which it is subsequently separated or the carbon dioxide is transferred to the acetylene solvent by using excess solvent or by adding monoethanolamine and the solvent treated to recover acetylene first, then the carbon dioxide.  Specification 839,200 is referred to.
Patent GB-1099263-A (GB)
Title: Improvements relating to the production of peracetic acid
Inventor: SHARMAN DONALD ARTHUR
IPC: C07C51/00
Filed: 1963-11-11
Abstract: Peracetic acid is made by the vapour phase reaction of excess acetaldehyde and oxygen and the unreacted acetaldehyde recovered for subsequent recycling by passing the gaseous reaction products to a distillation column to which a solvent for peracetic acid and the by-product acetic acid is also fed, whereby a solution of peracetic and acetic acids in the solvent is formed and a vapour stream containing acetaldehyde passes from the top of the distillation column to a partial condenser in which some of the acetaldehyde is condensed and returned as a reflux stream to the distillation column, the uncondensed vapour passing to a scrubber where it is washed with the solvent for the peracetic and acetic acid and using the acetaldehyde solution so obtained to provide the solvent feed to the column.  Some acetaldehyde is recycled to the oxidation stage.  This recycle stream can be drawn off from (1) the vapour stream leaving the top of distillation column, (2) the vapour stream leaving the partial condenser or (3) the condensate from the partial condenser. The specified solvents are acetone, methylol, methyl acetate and ethyl acetate.  Conditions in the distilation column are preferably adjusted so that some of the solvent passes over with the vapours leaving the solvent scrubber can be recovered by washing with water and distilling the resultant aqueous solution.  The process, using acetone as the solvent, is illustrated by reference to a diagrammatic flow sheet (not shown).
Patent GB-1060199-A (GB)
Title: Process for the manufacture of 2,2,3-trichlorobutane
IPC: C07C17/10
Filed: 1965-10-21
Abstract: 2,2,3-Trichlorobutane is made by reacting 2,3-dichlorobutane with chlorine at temperatures in the range 0 DEG  to - 80 DEG  C. under exposure to ultra-violet light.  It is preferred to use less than the stoichiometric amount of chlorine. Unreacted chlorine and by-product HCl are removed from the reaction mixture by the introduction of an inert gas, e.g. air, nitrogen, or by adding an unsaturated hydrocarbon, e.g. butene-2, which will react with Cl2 and HCl yielding 2,3 - dichlorobutane.  Alternatively, the stream of inert gas containing Cl2 and HCl can subsequently be fed to reactor containing an unsaturated hydrocarbon, preferably butene-(2) with the resultant formation of 2,3-dichlorobutane, the starting material.
Patent GB-1490790-A (GB)
Title: Hay balers
IPC: A01F15/04
Filed: 1975-10-29
Abstract: 1490790 Baling presses INTERNATIONAL HARVESTER CO 29 Oct 1975 [27 Nov 1974] 44636/75 Heading B5F In a hay baler with a reciprocating compressing plunger 20 carrying a knife 76 for cutting hay fed through a side opening 40 in the bale chamber 16, the plunger 20 is connected to an elongate rack 42, and screws &c. 85 adjust the rack vertically and thus, via the ram, vary the cutting clearance between the knife 76 and a knife 74 at the opening 40. A pin 48, Fig. 4, passing through a slot 44 in the chamber wall 12 connects the plunger to the rack 42 which drives a pinion 54. A belt 66 reciprocated by the pinion-shaft 56 drives a carriage (not shown) supporting depending teeth for feeding hay through the opening 40. The ram runs on rollers 78, 79 on one side about which it is pivoted to adjust the blade clearance when the adjusting screws 85 are turned to vary the height of the rack 42 and associated track assembly 44, 46.
Patent GB-977601-A (GB)
Title: Improvements in earth-working and like equipment
IPC: E02F3/65
Filed: 1960-12-30
Abstract: 977, 601. Automatic control of slip. HONEYWELL Inc. Dec. 30,1960 [Dec. 30, 1959], No. 44779/60. Heading G3R. The load on a powered vehicle is varied in dependence on the slip with respect to the ground subject to a limitation that the load cannot be increased to such an extent that the engine speed falls below a selected minimum. As shown, the slip of a tracked vehicle is determined by comparing the output of a velocity generator 34, driven by a track-driving sprocket 31, with the output of a velocity generator 74 driven at the ground-speed of the vehicle by an endless chain 51. The desired slip is set by a potentiometer 38 and the difference voltage is applied through a preamplifier 102, and time delay network 115,118 to an amplifier 120, the output of which controls an electro-hydraulic valve 146 connected to control the operation of an hydraulic actuator 141 positioning a cutting edge 21 of a scraper so as to maintain the slip constant by varying the load on the vehicle. The endless chain 51 is maintained free from slip by sensing the position of the down-going portion of the chain by a feeler 54, which controls a chain-driving motor 71 through a closed loop system 200. The engine speed, which is stated to be a function of engine-power, is sensed by a velocity generator 82, the output of which is compared with a reference voltage set by a potentiometer 91, and the difference signal is applied through a pre-amplifier 110 to the amplifier 120 to position the scraper blade 21 so as to maintain the load on the vehicle engine constant. The relative effectiveness of the slip and speed signals is determined by the bias sources 113,105 of the preamplifier 110,102 respectively. In examples, the biases are adjusted so that slip and power arc controlled equally or the bias on preamplifier 110 is adjusted so that above a predetermined engine-speed the amplifier is biased to cut-off, and the bias on amplifier 102 is adjusted so that slip both above and below a predetermined valve affects the amplifier 120. Positional feedback is applied to the amplifier 120 through a potentiometer 129.
Patent GB-1002988-A (GB)
Title: Circuit arrangement for amplifying or producing very high frequency oscillations with the aid of a tunnel diode
IPC: H03B7/14
Filed: 1961-12-15
Abstract: 1,002,988. Tunnel diode amplifying and oscillating circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 15, 1961 [Dec. 21, 1960], No. 45066/61. Heading H3T. In a V.H.F. amplifier or oscillator comprising a tunnel diode biased to operate in its negative resistance portion of its characteristic and coupled to a coaxial line resonant cavity which together with the internal capacitance and inductance of the diode form a strongly undercoupled parallel resonant circuit, an impedance having a value lower than a bias shunt stabilizing resistor is coupled in shunt relationship with the biasing resistor to by-pass this resistor only in the frequency range including the useful oscillations. In the arrangement of Fig. 2 the stabilizing resistor W1 by-passing the battery Q1 of tunnel diode E1 is shunted by an openended or open-circuit line 21 having a length of one quarter wavelength at the frequency of the useful oscillations, the effect of the line L1 being further amplified by a quarter wavelength choke D1. The stabilizing resistor W1 is in the form of a toroidal disc and is disposed in or built into the coaxial line resonant cavity R1. In the embodiment of Fig. 3 the stabilizing resistor W2 is disposed in the current node of the resonant cavity R2 and is essentially by-passed by the oscillating current.
Patent GB-1481626-A (GB)
Title: Grids for fluid contact apparatus
IPC: B01J10/00
Filed: 1974-10-17
Abstract: 1481626 Contact structure for vapour/liquid contact GLITSCH INC 17 Oct 1974 [18 Oct 1973] 45069/74 Headings B1F and B1R A grid structure arranged to be positioned in a vapour-liquid contact vessel comprises a first zone including at least one layer of a plurality of spaced flange-free ribs arranged to substantially uniformly distribute liquid, a second zone including at least one layer of a plurality of spaced ribs, at least some of which ribs have flanges for promoting liquid/vapour contact, and a third zone including at least one layer of a plurality of spaced ribs, at least some of which ribs have flanges with inclined margins, the structure being formed so that when it is positioned in the vessel the first zone is above the second zone, which is above the third zone, the flanges comprise horizontal or substantially horizontal flat surfaces and the margin of the flanges in the third zone are inclined upwardly to form the sides of liquid collecting troughs. The arrangement of ribs of the first zone may be as shown in Fig. 2A, of the second zone as shown in Fig. 3A with individual ribs as shown in Figs. 6, 7A, 7C, and 13C, and the arrangement of ribs in the third zone may be as shown in Fig. 4 or Fig. 3A when inverted.
Patent GB-1224100-A (GB)
Title: Transfer table for orienting articles to be moved on a conveyor
Inventor: KORNYLAK ANDREW THOMAS
IPC: B65G13/00
Filed: 1969-09-16
Abstract: 1,224,100. Roller conveyers. A. T. KORNYLAK. 16 Sept., 1969 [16 April, 1969], No. 45506/69. Heading B8A. Articles are movable off a transfer table in any desired direction by controlling the drive to rolls 6, 10 which have rollers 11 mounted on their peripheries. Rolls 6 are driven by a fluid motor via chains and sprockets 22, 24, 26 and rolls 10 are gear-driven by a motor 20. By manually controlling valves 46, 48 for the motors 20, 30, an article is oriented for movement off the table in the selected direction. The motors may be automatically controlled by coded signals. Power drive for the rolls may be omitted and the rolls be mounted for independent rotation, loads then being propelled manually.
Patent GB-1116518-A (GB)
Title: Sealing composition
IPC: C09J123/28
Filed: 1965-10-27
Abstract: A sealing composition comprises a filler, from 9.5 to 15% of a halogenated butyl rubber which is isobutylene copolymerized with up to 5% of a diolefin and containing 1.0 to 1.5% of combined halogen, from 3 to 8% of a drying oil and from 10 to 20% of a non-reactive plasticizer, the volatile content of the composition not exceeding 10%.  The rubber may be chlorinated isobutylene-isoprene, the plasticizer polyisobutylene and the drying oil linseed oil.
Patent GB-1130858-A (GB)
Title: Temperature compensated spectroscope
Inventor: PFEIFER KARL
IPC: G01J3/12
Filed: 1965-10-28
Abstract: 1,130,858. Spectroscopes. CARL ZEISS JENA, VEB. Oct.28, 1965. No.45732/65. Heading G2J. A temperature compensated spectroscope comprises a slide 6 carrying a photo-multiplier 7 and and exit slit 8, the slide 6 being displaceable for adjustment of the slit 8 relative to a spectrum, a carrier 1 fixed to the slide 6 and bearing line marks S 1 , S 2 ,...., S 5  each of which lies in a plane parallel to the plane of the spectrum lines and is inclined relative to a different spectrum line so as to represent the displacement of that spectrum line with variation in temperature, and photo-electric means 5 for scanning the line mark which corresponds with the spectrum line under analysis, the scanning means 5 being adjustable in a plane parallel to the carrier 1 so that the line marks are scanned at a height appropriate to the particular temperature. The carrier 1 is of glass or quartz and may be covered with a metal coating having light-transmitting line marks or opaque line marks may be applied to the glass. The line marks S 1 -S 5  are illuminated by a lamp 9 through a condenser 10. Light transmitted through the carrier is passed through a slit 12 to the scanner 5. The slide 6 and carrier 1 are advanced by a motor 20 until a line mark reaches the scanning system. The change in signal received by the scanner 5 causes the motor 20 to stop so that the photo-multiplier 7 is accurately positioned to receive the spectrum line to be analysed. In order to ensure that each line mark will be accurately aligned with the scanner 5 a further line mark S1' parallel to the line mark S 1  is observed through a microscope 13-17, the mark S1' being brought to be between two parallel marks of a graticule 16. The spectroscope is initially set up by moving the slide 6 until a spectrum line # 1 , which acts as a temperature datum line, is captured in the exit slit 8. The scanner 5 is then raised or lowered until the line mark S1' is viewed between the line marks of the graticule 16.
Patent GB-1395142-A (GB)
Title: Coded information record and an optical scanner
IPC: G06K7/10
Filed: 1973-10-01
Abstract: 1395142 Data carrier and optical reader INTERNATIONAL BUSINESS MACHINES CORP 1 Oct 1973 [30 Oct 1972] 45757/73 Heading G4M A data carrier has first reflective and non- reflective marks of equal width and second reflective marks of equal width greater than the width of the first marks. A hand held reader supplies light to the data carrier and receives light reflected from an area having a width greater than the width of the narrower marks and less than the width of the wider marks. A sensor receiving the marks is fully responsive to, e.g. black and white marks to swing between black and white levels 0 and 100% intensity. The narrow marks produce a smaller swing depending on how much wider the area is than the marks. Detectors operating at 15%, 50% and 85% threshold levels can identify a swing from black to white or vice versa and identify wide or narrow marks.