baber/WOPTO huggingface dataset:
Patent GB-936953-A (GB)
Title: Improvements in apparatus for detecting broken or improper tools in drilling and other machine tools
IPC: B23B47/24
Filed: 1959-12-16
Abstract: 936,953. Locating conductive bodies. CROSS CO. Dec. 16, 1959 [Dec. 17, 1958], No. 42743/59 Class 37. [Also in Groups XXII and XL (c)] A machine tool (such as a drilling-machine) having a cutting tool supported by a movable head has sensing means, operative when the tip of the tool is about to engage a workpiece, for detecting when the length of the cutting tool is improper (broken, or too short or too long) comprising sensing means disposed adjacent the path of travel of the cutting tool. A head 12, Fig. 2, carrying drills 16, 18, is slidable on a base 10 towards and away from a workpiece 26. Inductance coils 28, 30, are supported by a member 32 fixed in position relative to the base 10 apertures 34, 36, in the member 32 allow the drills to pass through the coils to the workpiece. The coils may be embedded in the walls of member 32 or may be wound on bobbins mounted as inserts therein. The bobbins may serve as bushing elements to guide the drills. A bracket 40 is secured to the drilling head and supports ferrous rods 44, 46, these are adapted to pass through inductance coils 50, 52, secured to a member 48 fixed with respect to the base 10. The rods are arranged so that at the point of entry of a drill, e.g. 18, into the corresponding coil 30 the rod 46 is just leaving its coil 52. Electrical sensing and control means. Control means is provided for sensing the conjoint inductance of inductance coils 28 and 50 and similarly for coils 52 and 30, so adjusted that a circuit is set in oscillation if a drill is adjusted too short or too long or is broken. The control means shown in Fig. 6 comprises an oscillating circuit in which the two coils 28 and 50 form a part. One rod 44 only is shown connected to the head 12. The coils are centre-tapped and connected in parallel. A vacuum tube VIA serves as energy supply means with vacuum tubes V1B and V2A as amplifying means. Vacuum tube V2B controls the output relay CR1 which in turn controls relay CR2 to perform the output function. Triode V1A is connected as a Hartley type of feed-back oscillator. The circuit is arranged so that tube V1A is normally quiescent, the circuit breaking into oscillation only if at some instant no portion of rod 44 is disposed within coil 50 at the same instant that no portion of tool 16 is disposed within coil 28. At this instant relay CR2 in releasing closes its No. 2 contacts to energize lamp L1 to indicate a trouble condition and opens its No. 3 contacts to shut down the machine. Two other circuit arrangements are described (Figs. 12 and 14, not shown), in these arrangements limit switches and dogs are employed selectively to energize the sensing and/or control means, in lieu of the position detecting coil and rod arrangement. Specification 753,916 is referred to.
Patent GB-1262530-A (GB)
Title: A method of and apparatus for withdrawing an annulus from, or inserting an annulus into, a surrounding housing
Inventor: BROWN WALTER MICHAEL
IPC: F16H57/023
Filed: 1969-08-27
Abstract: 1,262,530. Toothed gearing. VICKERS Ltd. 27 Nov., 1970 [27 Aug., 1969], No. 42752/69. Heading F2Q.  Guide rods 8, 26 and 27 are rigidly mounted on a gear housing 1 to facilitate the removal from, or insertion into, the housing of an annulus 4. A flange 5 on the housing 1 has accurately machined surfaces 5A, 6 which are adapted to engage accurately machined surfaces 3B, 3A formed on a flange 3 of housing 1. Bushes 12, 27, which may be plain bushes or re-circulating ball bushings, are mounted in carriers 13, 28 secured to the annulus 4 and the bushes are adapted to slide on the rods 8, 26. The flanges 3 and 5 are secured together by nuts and bolts some of which incorporate hydraulic devices to produce initial axial movement of the annulus 4 from its operative position. Axial movement of the annulus after its removal from the flange 3 may be controlled by rotation of a lead screw 51 engaging a screw-threaded bush 52 secured in flange 5 of the annulus 4.
Patent GB-1490305-A (GB)
Title: Abrasive article
IPC: B24D7/06
Filed: 1975-10-17
Abstract: 1490305 Abrasive tools E I DU PONT DE NEMOURS & CO 17 Oct 1975 42803/75 Heading B3D An abrasive article comprises a support member 11 having an annular support surface 14 and an annular abrasive member 15 secured to the support-surface, the annular abrasive member having annular resin-bonded abrasive means 16 and an annular back-up member 17 of an abradable porous resin secured to one surface of the annular abrading means and to the annular support surface. The support member is of any suitable material, such as aluminium, and has a flat-section 12, formed with a mounting aperture 18, and an outwardly extending section 13 providing the annular support-surface 14. The abrasive member 15 is secured to the support surface by an epoxy adhesive and consists of the abrasive means 16 and back-up member 17. The abrasive means comprises diamond abrasive material bonded by a polyimide resin, and the back-up member comprises a foamed epoxy or porous polyimide material which is of frangible or friable nature and abrades or wears away as the abrasive means is consumed so that wheel dressing is not required. The back-up member may be formed by low pressure hot moulding and sintering or by direct forming and free sintering. In the latter case, solid particulate polymer of formaldehyde is mixed with the polyimide and forms formaldehyde gas in the process to provide the porous polyimide. Fillers, such as silicon carbide, graphite, may be incorporated into the polyimide resin.
Patent GB-1369847-A (GB)
Title: Fault location system for pcm transmission lines
IPC: H04B17/40
Filed: 1971-09-14
Abstract: 1369847 Digital data transmission test systems; testing repeaters SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 14 Sept 1971 [24 Dec 1970] 42815/71 Headings H4P and H4R  A fault location system for PCM transmission lines has an interrogation pattern generator arranged to transmit a pattern comprising a train of pulses of alternate polarity followed by a train of pulses at the same frequency but deviating from the alternate-polarity rule, and repeater stations each checkable by the pattern repeated at a rate characteristic of the station. Figure 4 shows the interrogation pattern generator for testing a selected repeater station on a PCM transmission line pair, the generator feeding the line pair at 1 with a pulse train having a low frequency component respective to the station, this component being passed by a low-pass filter at the station (with an amplitude indicative of station functioning) and returned on a service line pair to give an indication, the service line pair being common to a plurality of PCM line pairs linking the same sequence of repeater stations and any of which can be used in this way. In Fig. 4 a clock pulse source C drives a binary counter A, an AND gate B being controlled by A and C to produce a pulse train b. A unit D (see below) produces a succession of pulses and gaps between them, of selected durations, at d. Logic at I responsive to the stages of counter A produces a set of pulse trains of different frequencies, one of which is selected by a manual slider and passed to an output i. During each gap at d, the pulses at b are all passed to line pair 1 via a gate P2, and gates P3, P4 alternately under control of a bistagle N also driven by the pulses b, so that alternate pulses appear at 1 reversed in polarity. During each pulse at d, each pulse at i causes deletion of a concurrent pulse from b by the inhibiting effect of a gate P1 on gate P2, operation being otherwise the same. A modification which reverses the polarity of pulses rather than deleting them would consist of omitting gate P2 (connecting b to Q directly) and applying the outputs of N to P3, P4 via EXCL-OR gates (shown dashed) also receiving the output of P1. Figure 6 shows unit D wherein a manual slider E is set to select one of 14 repeater stations. One of 11 leads e7-e17 is marked (depending in some cases, as shown, also on the state of a bi-stable M, which also produces the output d) to represent the numbers 7-17 respectively. Thirty-one minus this number is provided by logic F (when enabled, see below), in binary code and set into a binary counter G driven by clock pulses at a16. A particular count is recognized at H to enable F and reverse the state of bi-stable M. Thus the pulses and gaps between them produced at d have durations which are equal or almost equal as selected by the setting of E (e.g. at position 1 of the slider, both durations are determined by e7, whereas at position 6, one is determined by e9 and the other by e10).
Patent GB-909227-A (GB)
Title: Production of cyclohexanone
IPC: B01J23/06
Filed: 1960-12-14
Abstract: Cyclohexanone is prepared by vapour phase dehydrogenation of cyclohexanol derived from a cyclohexane oxidation product, over a zinc oxide catalyst.  The cyclohexanol feed used preferably contains 85-95% cyclohexanol, the remainder being cyclohexanone and incidental impurities and the feed is preferably washed with aqueous alkali before being subjected to dehydrogenation e.g. at 325-425 DEG C. Examples are given and the purity of the product and selectivity of the catalyst compared with the purity and selectivity in brass catalysed dehydrogenations.
Patent GB-1083025-A (GB)
Title: Improvements in or relating to animating apparatus
IPC: G05D3/14
Filed: 1964-10-23
Abstract: 1,083,025. Programmed control. WED ENTERPRISES Inc. Oct. 23, 1964 [Nov. 1, 1963], No.43288/64. Heading G3N. [Also in Division H2] A programme for controlling an animated figure is derived by operating the controls of the figure mechanism and simultaneously recording the control signals. As shown, the outputs of a multi-channel frequency generator 10 are fed through relays 12 and a control 20, which adjusts the amplitude of the outputs selected by the relays, and combines and feeds them to a power amplifier 30 and also to a channel of a multi-track magnetic tape recorder 104. The output of the power amplifier selectively operates frequency responsive read relays 32 which through relays 34, 36 control solenoid air valves 38 positioning air-cylinders 40 of the figure 42. The relays 12 are actuated by a manual joystick 14, Figs. 2-4 (not shown), or by a modified control tape read by a photo-electric device 16, Fig. 9 (not shown). The device 16 can be replaced by a contact reader, Fig. 10 (not shown). In an alternative arrangement, Fig. 6 (not shown), the outputs of the generator 10 are amplitude-modulated and control servo air cylinders through band-pass filters.
Patent GB-1213038-A (GB)
Title: Yarn storage disc of a two-for-one spindle
IPC: D01H7/86
Filed: 1968-09-12
Abstract: 1,213,038. Two-for-one twisting spindles. PALITEX PROJECT CO. G.m.b.H. 12 Sept., 1968 [21 Sept., 1967], No. 43365/68. Heading D1D. A yarn storage disc for a two-for-one twisting spindle having a yarn outlet 6 with studs 78 of wear resistant material at its outer opening is arranged to have the outlet 6 sealed over its length and the storage disc formed as a single unit. The vertical walls of the outlet 6 preferably diverge outwardly so that fluff is ejected therefrom. The base 9, yarn storage section 10, boss 11 and the walls of outlet 6 may be made by a casting process.
Patent GB-974274-A (GB)
Title: Stabilization of polymeric compositions
IPC: C08K5/20
Filed: 1961-12-05
Abstract: 974,274. Stabilized hydrocarbon polymer compositions; cellular polyolefines. WESTERN ELECTRIC CO. Inc. Dec. 5, 1961 [Dec. 20, 1960], No. 43443/61. Headings C3C and C3P. A stabilized polymer composition comprises polypropylene or a higher order essentially saturated hydrocarbon polymer, a thermal antioxidant and an inhibitor containing the oxamide radical. The saturated polymer may be polybutene, poly(methylbutene), poly(methylpentene), poly(dimethylpentene) or polydodecene; the antioxidant may be 4, 4<SP>1</SP>-thiobis-(3-methyl-6- t-butyl-phenol), 2, 6-di-t-butyl-4-methyl phenol, phenyl- #-naphthylamine, 5-N-pentadecyl resorcinol, 6, 6<SP>1</SP>-di-t-butyl-4, 4<SP>1</SP>-bi-o-cresol, polytrimethyl dihydroquinoline or 4, 4<SP>1</SP>-butylidene-bis- (6-t-butyl-3-methyl phenol); and the inhibitor may be oxamide, polymers of oxamide and its derivatives, ethylene oxamide, oxalyl urea, N, N <SP>1</SP>-dibenzyl or diphenyl oxamide, or N,N<SP>1</SP>- dibenzyl or diphenyl oxamide, or N,N<SP>1</SP>-bis (ochlorophenyl, p-tolyl, ethoxyphenyl or 2-pyridyl) oxamide. Optional ingredients are polyisobutylene, carbon black and copper dust. The compositions may be expanded with commerical blowing agents (e.g. azodicarbonamide, examples 21-23), and find application as insulation for copper wire and cables.
Patent GB-1070975-A (GB)
Title: Process for the execution of exothermic gas reactions assisted by granular catalysts
Inventor: BATHORY JOZSEF
IPC: F28C3/16
Filed: 1963-11-04
Abstract: In the example ethylene oxide is prepared by continuously reacting air and oxygen in the presence of a spongy silver catalyst, the catalyst being continuously recirculated and moved by the gas mixture so that the adjacent grains of catalyst remain substantially in contact with each other and act as a solid mass.
Patent GB-1371837-A (GB)
Title: Bus bar connector assembly and multiple electrode resistance welding machine including such an assembly
IPC: B23K11/31
Filed: 1972-09-20
Abstract: 1371837 Welding by pressure D SCIAKY 20 Sept 1972 [5 Nov 1971] 43565/72 Heading B3R [Also in Division H2] A multigun resistance welding machine includes an assembly comprising first and second bus-bars 35, 36 in side-by-side and parallel relationship but insulated from each other by insulation 38, a third bus-bar 37 parallel to but laterally separated from the first and second bars with one end of the second bar 36 connected to an adjacent end of the third bar 37 by a connector 39 which is mutually perpendicular to the longitudinal axes of the bars 36, 37; there being output terminals on the first and second bars 35, 36 positioned such that a terminal on bar 35 and a terminal on bar 36 which together form a pair both lie in a plane perpendicular to the longitudinal axes of the bars 35, 36. Welding guns are connected to respective pairs of terminals and the circuits of the bus-bars to each gun are substantially equal in resistance and inductance and carry currents equal in amplitude and wave form. The bus-bars may be shaped to fit around the periphery of a workpiece to be welded, e.g. a car door (Fig. 4, not shown), with welding guns connected to terminals on the bars at convenient points. In Fig. 5, not shown, two groups of welding guns are interleaved for welding first and second walls of vertical work pieces; the guns comprising a yoke (30) carrying a hydraulic piston and cylinder to force the electrodes (21, 22) against the spots to be welded. Connections to the bus-bars are by flexible conductors (34, 34a), the gun being supported on a slidable rod (31) fixed to the frame (33) of the machine by a bracket (32).
Patent GB-890135-A (GB)
Title: Improvements in or relating to apparatus for feeding poultry
Inventor: BARNETT JOHN RICHARD
IPC: A01K39/01
Filed: 1959-12-23
Abstract: 890,135. Animal feeding devices. SOUTHERN COUNTIES AGRICULTURAL TRADING SOC. Ltd. March 6, 1961 [Dec. 23, 1959], No. 43728/59. Class 5(2). A poultry feeding device comprises a frame 1 welded to a shaft 8 rotatably supported on a bracket 9 attached to a beam 10 of a poultry house, and food containers 5 suspended on strings attached to the shaft 8. The containers 5 are refilled from a hopper 13 supported on a track 14 attached to roof beams for movement between rows of feeding - devices, the track passing the delivery outlet of a storage bin 12 to facilitate the refilling of the hopper.
Patent GB-1312590-A (GB)
Title: Process for producing rolled products comprising three layers
IPC: B22D11/00
Filed: 1971-09-20
Abstract: 1312590 Casting composite articles; making composite metal sheet VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE AG 20 Sept 1971 [22 Sept 1970] 43798/71 Headings B3A and B3F A method of producing a three-layer rolled metal product, e.g. sheet, comprises continuously casting metal in a mould, drawing an endless bar having a liquid core downwardly from the mould, guiding the bar along a curved path which extends downwardly and then upwardly beyond the height to which the liquid core may rise to produce a hollow bar, severing the hollow bar into sections, casting a metal into the hollow centre of a section to form a composite metal ingot, and rolling the ingot to form the three-layer product. Steel of different compositions is used for the inner and outer layers of the product, the thickness of the outer layers being determined by the casting speed and cooling rate in the continuous casting part of the process. After the hollow bar has been cut into sections, the sections are set on a floor plate and are supported by water-cooled supporting means to prevent them from bulging under the ferrostatic pressure when they are filled. The mean temperature of the sections before pouring is preferably above 700 C., the inner temperature being within the range 900 to 1200 C. The composite ingots are abraded so as to remove a layer 5 to 10 mm. thick, heated, and rolled in two stages to produce strip, the strip being cut into plates which are annealed at 950 C., cut, straightened and pickled. Alternatively the strip may be reeled, pickled, abraded and cold rolled before being annealed.
Patent GB-1104820-A (GB)
Title: Improvements in or relating to oval link chains
IPC: F16G13/14
Filed: 1966-09-30
Abstract: 1,104,820. Chains. W. LORECK. 30 Sept., 1966 [2 Oct., 1965], No. 43808/66. Heading F2Q. An oval-link chain for scraper conveyers in mine workings comprises plain links 3 alternating with links 2 having on their ends projections 4 which extend longitudinally of the chain to substantially fill the spaces between the sides of the plain links 3 to prevent bending of the chain in one plane, and to allow transmission of compressive loads. The endless chain moves on the bottom 1 of a channel and is reversed over chain wheels at the ends of the conveyer, scrapers (not shown) being secured to the chain at regular intervals. The projections have rounded ends to allow flexing of the chain round the chain wheels but extend substantially to the sides of the links 3 (Fig. 3, not shown). In a modification (Figs. 4-6, not shown) the projections (4<SP>1</SP>) overlap.
Patent GB-935910-A (GB)
Title: Process for purifying sugar juices
IPC: C13B20/14
Filed: 1959-12-24
Abstract: In purifying an aqueous sugar juice, such as diffusion juice obtained by diffusion of sugarbeet cossettes, or partially demineralized molasses obtained by passing dilute molasses, e.g. beet molasses, through a mixed bed or two separate beds of cation- and anion-exchange resins, the impure juice is treated with, e.g. passed through, a bed of a strongly basic, e.g. quaternary ammonium, anion-exchange resin furnishing hydroxyl ions and giving the juice a highly alkaline pH, e.g. between 11 and 12. The strongly basic anion-exchange resin may be one component of a mixed bed or two separate beds of anion- and catio-exchange resins.  The highly alkaline juice is then mixed with calcium sulphate and/or calcium chloride and the resulting precipitate, containing impurities, is removed, as by sedimentation and filtration, to yield a clear purified juice, which may be further purified by being passed through a mixed bed or two separate beds of anion- and cation-exchange resins.  The cation exchange resin may be a copolymer of methacrylic acid and divinylbenzene. Specifications 841,620 and 935,909 are referred to.
Patent GB-1123668-A (GB)
Title: Improvements in or relating to ventilation control devices for fluid-tight pressure chambers
IPC: F16K17/19
Filed: 1966-09-30
Abstract: 1,123,668. Ventilators. SOC. ANON. DES ETABLISSEMENTS NEU. 30 Sept., 1966 [18 Nov., 1965], No. 43924/66. Heading F4V. In a fluid-tight pressure chamber comprising an outer envelope 1 and an inner chamber 4, cooling gases are introduced and withdrawn through coaxial conduits 10, 11, an annular valve member 14 closes the annular space between the conduits and a disc-shaped valve member 12 closes the inner conduit 11. The disc-shaped valve member 12 is provided with a seat 13 which may comprise the periphery of the central aperture of the annular valve member 14 as shown, or may be separate therefrom (Figs. 3, 4), or in a construction in which the closing movement of the disc-shaped valve member is outwardly of the pressure chamber, the seat 13 may comprise a radially inwardly extending flange formed on a cylindrical body of which an outwardly extending flange comprises the annular valve member (Fig. 6). The annular valve member 14 is mounted on a cylindrical bellows member to provide fluid-tightness between the valve member and the inner conduit 11.
Patent GB-982487-A (GB)
Title: Process for the production of phenol
Filed: 1962-11-22
Abstract: Phenol is prepared by oxidizing benzoic acid with an oxygen containing gas at 220 DEG  to 300 DEG  C. in the presence of steam, a copper-containing catalyst and a magnesium-containing catalyst promoter in a reactor made of or lined with a nickel alloy which in the wrought state contains 54% Ni, up to 2.5% Co, 14.5 to 16.5% Cr, 15 to 17% Mo, 3 to 4.5% W, 4 to 7% Fe, up to 1% Si, up to 1% Mn, up to 0.08% C, and less than 1% of P, V or S, the reactor being homogeneously heated, the oxygen containing gas mixture being introduced at a rate such that there is passed into the reactor from 2 to 20 litres per hour of oxygen per kilogramme of reaction mixture, the steam being passed into the reactor at a rate of from 100 to 250 grammes of steam per 100 grammes of phenol produced, and the steam which is introduced being diluted with an inert gas so that the ratio by volume in the exit gas mixture between the inert gas and the steam for the one part and the phenol for the other is from 10 : 1 to 30 : 1.  The dilution of the steam may be effected by recycling to the reactor a portion of the reacted gases from which phenol has been removed. The reactor may be homogeneously heated by means of a circulating liquid or on a bath containing molten salts or a high boiling liquid. In the examples the catalyst used is copper oxide or benzoate with magnesium oxide as the promoter.  Specification 762,738 is referred to.