baber/WOPTO huggingface dataset:
Patent GB-1039037-A (GB)
Title: Improvements in or relating to electric traction motor control systems
IPC: B60L15/20
Filed: 1964-12-09
Abstract: 1,039,037. Automatic speed and current control. MASCHINENFABRIK OERLIKON. Dec. 9, 1964 [Dec. 18, 1963], No. 50014/64. Heading G3R. A signal Vk, derived from device 1 in accordance with the setting of a control handle, is compared with signal V representing the speed of trac-i tion motor 5, the error signal V being fed to control amplifier 2. The output signal Jk from the control amplifier represents a required motor current and this is compared with signal J indicating the actual motor current. The error signal i is applied to regulator 3 providing signal Y3 to be fed to a servo controller or stepping switch 4 for controlling the voltage applied to the motor. The signal Y3 has a constant negative, constant positive, or zero value according to whether the signal i lies below, above, or within a predetermined range. The reference signal Vk is derived from a poten- - tial divider which is adjusted by a D.C. motor. Switches operable by the control handle are adapted to connect the D.C. motor to a required tapping of a further potential divider selectively, whereby the D.C. motor is driven in either direction or held stationary in accordance with the position of the control handle. A change-over switch connects the D.C. motor to a fixed tapping of the further potential divider, irrespective of the position of the control handle, when the traction motor is being started and before it reaches a predetermined speed. The control handle is movable to a position in which the system is not operable to control the traction motor speed, the D.C. motor then being supplied with a current-error signal so that, when the system is reactivated, the transition to control of the traction motor by the system will be effected smoothly. In the event of wheel-spin, the reference signal Vk is reduced by compounding it with a signal V'k which is proportional to motor current and is delayed by network 16. At the cessation of wheel-spin, the reference signal is returned exponentially to its original value. The control amplifier 2 has a characterisitic such that signal Jk is proportional to signal v over a certain range but its maximum and minimum values are limited. The control amplifier may be of the transductor or transistor type.
Patent GB-1184644-A (GB)
Title: Improvements in or relating to Fluid Lubricated Journal Bearings.
Inventor: SCOTT-SCOTT JOHN LANFEAR
IPC: F16C32/06
Filed: 1968-10-22
Abstract: 1,184,644. Fluid bearings. ROLLS-ROYCE Ltd. 22 Oct., 1968, No. 50059/68. Heading F2A. A shaft 32 is journalled in a support 12 by means of a fluid film between the support 12 and a sleeve 18 which is resiliently mounted on the shaft. Fluid, e.g. air, nitrogen or a liquid is fed under pressure via 16 to the bearing surfaces. The sleeve 18 may be mounted on the shaft by means of an O-ring 26 disposed in a circumferential groove 28 of a sleeve 24 secured to the shaft. The sleeve 18 is permitted to rock about the O- ring and also the axis of the sleeve may be slightly displaced relative to the axis of the shaft, thereby facilitating the correct alignment of the shaft in the support. The sleeve 18 may be keyed into the shaft if a viscous fluid e.g. a liquid is used, so that the sleeves 18 and 24 rotate together. The bush 12 may be resiliently mounted in a fixed structure by means of two axially spaced O-rings which are positioned co-axially with the bush 12 on either side of the duct 16 sealingly engaging the outer surface of the bush and the inner surface of the fixed structure.
Patent GB-1095733-A (GB)
Title: Method of and apparatus for opening folded sheets
Inventor: GERMER KURT
IPC: B65H5/30
Filed: 1964-12-14
Abstract: 1,095,733. Feeding sheets. LEIPZIGER BUCHBINDEREIMASCHINENWERKE VEB. Dec. 14, 1964, No. 50779/64. Heading B6B. Folded sheets 6, having either half of the sheet protruding beyond the open side thereof, are fed towards grippers 3 on a rotating cylinder 4 with their open side foremost, and are opened and placed over a saddle 8. As shown, a known separating device 1 feeds each sheet over a board 2, the top half of the sheet projecting at 7 beyond the bottom half, and the edge 7 strikes a number of movable abutments 5 having notched faces, so that the abutments are displaced rearwardly and, in so doing, raise the edge 7 away from the edge of the lower sheet half. Thus, the lower half of the sheet is exposed and is grasped by the grippers 3. The edge 7 is stripped from the abutments by a stripper 21 and falls down freely over one side of the saddle 8, and the grippers 3 release the other sheet half at the other side of the saddle. When folded sheets having the bottom half projecting are fed, the members 5 are either removed or put out of action. In Fig. 2 (not shown), the front edge 10 of the top half of the folded sheet is lifted by a rotating sucker 9 before the edge of the bottom sheet half is engaged by rotating grippers 11. The sucker 9 may be oscillated. The top half of the shee can be engaged by suckers 13, Fig. 4 (not shown) which hold it back sufficiently to expose the front edge of the lower sheet half before the latter is engaged by rotating grippers 14. A curved recess in a guide plate receives the humped portion 15 of the top sheet half during the retardation thereof by the suckers 13. The top half of the folded sheet can be engaged by a suction drum 17, Fig. 5 (not shown) having a peripheral speed equal to the speed of the sheet, and suckers 18 can engage the bottom half of the sheet to accelerate it momentarily until the exposed edge thereof is engaged by grippers 20.
Patent GB-1095925-A (GB)
Title: Hafnium alloys
Inventor: MORTON PETER HARLOW
IPC: G21C7/24
Filed: 1965-12-02
Abstract: An alloy contains 5-30% Zr and/or 15-30% Nb; 0-2% in total of one or more of Cr, Mo, Ni and Fe; 0-0.5% Si; 0-2% of Sn and/or Al, the total content of alloying elements not exceeding 30%; balance Hf and impurities.
Patent GB-1434739-A (GB)
Title: Dosing pump
IPC: F04B7/04
Filed: 1973-11-08
Abstract: 1434739 Reciprocating pumps E KLESATSCHKE 8 Nov 1973 [9 Nov 1972] 51829/73 Heading F1A A pump for dispensing measured quantities e.g. of pastes or slurries, comprises a piston 2 which on initial inward movement into cylinder 1 returns material in pumping chamber 4 through inlet 6 into supply reservoir 8 until inlet 6 is closed by the piston, further movement then pressurizing the chamber contents to move a valve piston 3 against its spring 12 to open delivery port 5. On the return movement of piston 2 by spring 16, valve piston 3 closes port 5 and a further charge is drawn through inlet 6. Return stop 15 on valve piston 3 may be threaded for axial adjustment to vary the quantity dispensed. Spring chamber 18 has a vent 17. Spring 12 may be omitted and chamber 18 sealed to act as an air spring. Piston 2 may be operated manually, as shown, or mechanically, e.g. by an eccentric.
Patent GB-1220977-A (GB)
Title: Photographic camera
IPC: G03B7/16
Filed: 1968-11-01
Abstract: 1,220,977. Photographic exposure control. AGFA-GEVAERT A.G. Nov. 1, 1968 [Nov.3, 1967], No.51962/68. Heading G2A. A camera having a photo-electric exposure control means also has an exposure value setting device for flash exposures which is coupled to a distancesetting means. The known exposure means shown includes a spring-loaded slide 4 whose stepped edge explores the position of the galvanometer needle 3 whose deflection is determined by the illumination received by a photo-sensitive element. The slide 4 engages by pin-and-slot means an exposure value setting member 9 which has a cam surface 15 engaging in turn a pin 16 of a diaphragm aperture setting lever 18. Pin 16 also engages the slotted end of a diaphragm leaf 20. The setting member 9 also has a forked arm 22 engaging a pin 23 of an exposure time setting member 24 supported coaxially with the objective 25. The objective can be adjusted by means of a distance setting ring 30, using a pointer 31 and range scale 32. Ring 30 has a cam surface 33 engaging a pin 34 of a flash exposure value setting lever 35. Lever 35, which pivots on a fixed pin 36, carries a pin 37 bearing against a cam surface 38 of an intermediate lever 39, which has another cam surface 44 bearing against a pin 45 of the aperture setting lever 18. Thus there is a lost motion coupling between the distance setting ring 30 and the aperture setting lever 18. Intermediate lever 39 is pivoted freely on a flash guide number setting means 41, which has a pointer 42 reading against a flash guide number scale 43. The camera has a socket 47 for receiving a flash cube 49. When a flash cube is loaded in position, a rod 51, and hence a slide 52, is pushed downwards, so that pin 34 bears against cam 33. If the available daylight illumination is adequate, the setting member 9 rotates the aperture setting lever 18, with which it is connected by a spring 21, so that the aperture closes down from a fully open position to the appropriate setting. Member 9 also simultaneously sets the exposure time member 24 in accordance with the prevailing illumination. The downward movement of the camera release 14 initially allows slide 4 to move downwards under the action of spring 11, and finally actuates the shutter release 29 to effect the exposure. If the illumination is poor, the slide 4 will move needle 3, so that a relatively large aperture is set. In this case, however, the diaphragm is closed down further by the distance setting ring 30 acting on the flash exposure setting lever 35. Thus the effective aperture is reduced to the correct value for flash exposure. When the flash cube is removed, slide 52 moves upwards under the action of spring 50, so that lever 35, and hence pin 34, is moved away from cam surface 33. This movement is followed by the loosely linked intermediate lever 39. Consequently movement of the distance setting ring 30 now has no effect on the aperture setting lever 18, this being influenced only by slide 4 and setting member 9. Details of the mechanism can be modified as in Figs. 2 and 3 (not shown).
Patent GB-1480639-A (GB)
Title: Oven cleaning compositions
IPC: C11D7/06
Filed: 1974-12-03
Abstract: 1480639 Oven cleaning composition BRISTOL-MYERS CO 3 Dec 1974 [3 Dec 1973] 52237/74 Heading C5D An oven cleaning composition comprises (a) 0À5 to 4À0% by weight of an alkali metal hydroxide, (b) from 1À0 to 20À0% by weight of an alkanolamine which is monoethanolamine, monoisopropanolamine, N-methylethanolamine, aminoethylethanolamine, diglycolamine, diisopropanolamine, triisopropanolamine, isopropanolamine, N,N - diethylethanolamine, dimethylethanolamine, N,N - diisopropylethanolamine, diethanolamine, N - methyldiethanolamine, or N-ethyldiethanolamine, and (c) up to 98À5% by weight of water. The compositions may be in the form of an aerosol and include a propellant. They may contain a thickener such as bentanite. Other additives include coconut soap and lauryl alcohol.
Patent GB-1456397-A (GB)
Title: Cylindrical resonators
IPC: H01P7/06
Filed: 1973-11-13
Abstract: 1456397 Cavity resonators HARVARD INDUSTRIES Inc 13 Nov 1973 [13 Nov 1972] 52693/73 Heading H1W A cylindrical cavity resonator comprises a tuning plunger 15 having a skirt 14 and carrying on its upper surface a plate 12 forming with this surface a radial choke, whereby the shortcircuit at the inner end of the radial choke is transformed into a virtual short-circuit between the skirt 14 and the inner wall 11 of the cavity (to this end the combined lengths of the choke and the skirt approximate to half a wavelength). The plunger is carried upon three (as described) vertically-movable pillars 144 attached to the ends 156 of radial cantilevers pinned to the plate 12. The catilever brackets 156 extend through slots in the side wall 11 into chambers 146 forming part of the hermetically sealed envelope of the resonator. Each pillar 144 extends through a bellows 150 and is attached at its lower end to one of the yokes 140 of an actuating mechanism. The latter consists essentially of an internallytoothed ring 118 which engages three sprockets 120 which, upon rotation, move vertically upon respective lead screws 134 fixedly supported between brackets on the exterior of the resonator. In detail, each sprocket 120 is mounted on, and rotates with, a sleeve 122 threaded upon the lead screw 134. An upper yoke member 126 is carried on bearings 128 between the sprocket and a collar 130 fixed to the sleeve in such a manner that it moves vertically with the sleeve and sprocket, but does not rotate. The upper and lower yokes 126, 140 are connected by pillars 131 having a relatively high coefficient of thermal expansion designed to compensate for the thermal expansion of the skirt 14. The pillars 144, on the other hand, are made of a material having a negligible thermal expansion coefficient. The ring 118 is constrained to move vertically with the sprockets 120 by virtue of cheeks 121 which engage the upper and lower horizontal surfaces of the ring. The ring is rotated by an elongated sprocket attached to an actuating knob (Fig. 3, not shown). A simple indexing mechanism is provided to lock the knob in an adjusted position.
Patent GB-1180593-A (GB)
Title: Production of Yarns
IPC: D02G3/34
Filed: 1967-11-20
Abstract: 1,180,593. Yarns. HEBERLEIN & CO. A.G. 20 Nov., 1967 [5 Dec., 1966], No. 52737/ 67. Heading D1W. In the production of fancy yarn at least two thermoplastic e.g. polyamide, polyester, polyvinyl, polyolefine or cellulose acetate, multifilament yarns are temporarily high twisted e.g. 1200-2500 turns/metre (optionally with permitted shrinkage of about 2%) and heat set, at temperatures which are similar or differ by up to 50‹C, in the twisted state and then combined into a ply yarn, two of the yarns being twisted in opposite twist direction with a difference in the number of twists per unit length, e.g. 300-2000 turns/metre, applied thereto, whereby one yarn in the ply yarn has a tendency to knot or loop and/or is knotted or looped and the other has the form, appearance and properties of a normal falsetwist crimp yarn. The yarn may be formed by use of conventional false-twist apparatus imparting the different twists and heater(s) e.g. hot air duct or yarn-contacting heated metal surface.
Patent GB-1411107-A (GB)
Title: High-velocity wet electrostatic precipitators for removing gaseous  and particulate contaminants
IPC: B03C3/16
Filed: 1972-11-17
Abstract: 1411107 Purifying gases A P DESEVERSKY 17 Nov 1972 53116/72 Heading C1A [Also in Division B2] An electrostatic precipitator of the wet type comprises a plurality of tubular collector electrodes 10 to 14 concentrically arranged to define annular passages A, B, C, D provided with discharge electrodes 20, 21, 24 and 25. Liquid from distributers 10A to 14A flows down the walls of the collector electrodes. Contaminated gas enters the passages A, B, C, D through Venturi slots 29A to 29B which cause the gas to expand, thus forcing the liquid against the surface of the electrodes to produce a smooth liquid film thereon. Chemical reagents from a supply SV are injected into the contaminated gas stream to aid precipitation, being fed by way of a manifold 30 and standpipes 31. Thus, atomized hydrochloric acid may be injected into an ammonia-laden gas, whilst ammonia gas may be injected into a contaminated gas containing sulphur dioxide, hydrogen chloride, or hydrogen fluoride, the resulting reaction products in solution being collected for further treatment or use. A plurality of adjustably positionable manifolds may be provided to allow for the injection of a number of different reagents (Fig. 5, not shown). The contaminated gas may also be pretreated with activated carbon, with ozone generated by a corona discharge, or by passage over a catalyst, to remove odours.
Patent GB-1416519-A (GB)
Title: Steel frame works
IPC: E04B1/24
Filed: 1971-11-16
Abstract: 1416519 Frameworks J O ADLER 3 Nov 1972 [16 Nov 1971] 53210/71 Heading E1K [Also in Division F2] A framework comprises straight steel sections 2, 8 having square-cut ends interconnected by joint pieces 9 of a higher strength steel, the joint pieces being bolted to the sections by high strength friction grip bolts. The bolts may be of the type referred to in various British Standards or of the type comprising a bolt having a grooved shaft which is pulled through aligned holes in the joint pieces and sections before swaging a collar over the grooves. A T-joint between sections 8 and 14 is formed by a plate 17 having a tube 18 welded to one end and having angle pieces 19 bolted to the tube so as to grip a flange on the section 8.
Patent GB-1531430-A (GB)
Title: Segregated phase comparing relays
IPC: H02H3/30
Filed: 1975-12-31
Abstract: 1531430 Detecting faults on polyphase lines WESTINGHOUSE ELECTRIC CORP 31 Dec 1975 [7 Feb 1975] 53370/75 Heading H2K A three-phase protective system detects earth faults by monitoring a first signal representing the zero-sequence current at one end of a line and phase-to-phase faults by monitoring a second signal representing the difference of any two of the phase currents, each signal being compared in phase with a corresponding signal from the other end of the line to determine whether the fault is internal or external to the line. The details of the monitoring and phase-comparing systems are as described in Specification 1,449,682.
Patent GB-1123779-A (GB)
Title: Loose leaf binder
IPC: B42F13/00
Filed: 1966-11-29
Abstract: 1,123,779. Loose leaf binders. K. BENE. 29 Nov., 1966, No. 53449/66. Heading B6E. A loose leaf binder comprising a sheet of cardboard having a covering of plastics sheet material extending over both faces thereof, the plastics sheets being seamed together around the peripheral edge regions of the cardboard, and the whole being folded along lines 7 to provide front and back covers 1, 2, and a spine 3, is characterized by the provision of cutouts or recesses 9 in the cardboard at points 8 where the hinge lines 7 meet the upper and lower edges of the sheet of cardboard. Thus, when the covers are folded about the hinge lines 7, the seamed edges of the plastics sheets can withdraw within the recesses 9, and will not be stressed and split. The recesses 9 (Fig. 5) can be semi-circular cut-outs. In another form (Figs. 6 and 7), the inside edge of the cardboard sheet is bevelled (at 10) near the points (8) to allow the seamed edges of the plastics sheets to withdraw during folding of the covers. The cardboard sheet (P, Fig. 2) is glued to the plastics sheets (F), and the peripheral seams of the plastics sheets are welded together. The spine 3 has a finger hole 3 and a label 5, and the sheetfiling mechanism of the binder is attached to the cover 2 by means of hollow rivets 6.
Patent GB-1269471-A (GB)
Title: Improvements in and relating to anchor rod assemblies
Inventor: LAMENDIN LOUIS
IPC: E21D21/00
Filed: 1969-10-31
Abstract: 1,269,471. Anchored bolts. L. LAMENDIN. 31 Oct., 1969 [31 Oct., 1968; 17 Oct., 1969], No. 53523/69. Heading F2H. A rod 1 having a thread 2 at one end is anchored in a hole in a wall 4 by (i) inserting the rod in the hole such that its non-threaded end is surrounded by a resin-catalyst mass 6 preinserted into the hole, (ii) rotating the rod 1, by way of a nut 7 which is threaded on to the rod but limited in its axial movement relative thereto by a plate 8 attached to the nut, so as to mix the resin and catalyst and (iii) continuing rotation until the resin has a set by a predetermined amount whereat the plate 8 is sheared from the nut 7 and the nut 7 is tightened on to a bearing plate 3 supported on the rod 1 adjacent to the wall 4. The plate 8 may be welded or cemented to or integral with the nut 7. Alternatively, the plate 8, which may have a rectangular hole therethrough to receive a correspondingly shaped end portion (9), (Fig. 2, not shown), of the rod 1, may be attached by studs or screws to the nut and/or by co-operating recesses and projections on the plate and nut.
Patent GB-1205714-A (GB)
Title: Regulation of the level of fluid spring elements or shock absorbers, especially for vehicle suspensions
IPC: F16F15/03
Filed: 1968-11-13
Abstract: 1,205,714. Self - levelling fluid springs. HOESCH A.G. 13 Nov., 1968 [19 March, 1968], No. 53920/68. Heading F2S. [Also in Division G3] Extension or compression of a fluid spring element or shock absorber causes movement of a magnet to change the resistance of a magnetoresistive element which, through an amplifier, controls a valve regulating the supply of fluid to the spring element or shock absorber. In Fig. 3, the piston of a fluid spring of a vehicle suspension carries a magnet 8 so that when the piston rises above the position shown it is adjacent to and reduces the resistance of a semi-conductor element 1. This is effective through a transistor amplifier 7 and a solenoid 3 to open a valve in a conduit 11 through which gas or other fluid is supplied to cylinder 6 to return the piston to the position shown. The area of the magnetic pole face may be altered by the addition of pieces of magnetic material of different shapes. The response may be altered by the addition of a resistance-capacity delay circuit to transistor amplifier 7.
Patent GB-1483656-A (GB)
Title: Electric alarm timepiece
IPC: G04C21/20
Filed: 1974-12-13
Abstract: 1483656 Alarm watches TIMEX CORP 13 Dec 1974 [20 Feb 1974] 54085/74 Heading G3T [Also in Division H1] An electric alarm watch includes a switch 11 whereby the alarm circuit is closed when the bottom surface of the hour hand 16 contacts an alarm set spring 19 extending from an alarm time set ring 28 into the path of the tip 33 of the hour hand which is guided under the inner periphery of the set ring 28 to ensure good contact closure with the bent-up end 32 of spring 19, the set ring 28 having a flange portion (39), Fig. 4 (not shown) provided with gear teeth 41 for meshing with a pinion 46 on shaft 43 of stem 42. The spring 19 has a portion 65 extending circumferentially beneath the set ring 28 and making continuous contact with a fixed member 56 which in turn engages a spring contact blade (53), Figs. 3 and 4 (not shown) in the circuit of a conventional alarm or buzzer. When stem 42 is pushed into the innermost of its three axial positions an enlarged portion 47 depresses the tip of the blade (53) and opens the alarm circuit. Set ring 28 may be of transparent plastics material, with knurled areas 29 and 31 which obscure visibility into the watch.
Patent GB-1320387-A (GB)
Title: Production of beta-hydroxyaldehydes
IPC: C07C45/75
Filed: 1970-11-13
Abstract: 1320387 Hydroxyaldehydes BADISCHE ANILIN- & SODA-FABRIK AG 13 Nov 1970 [14 Nov 1969] 54103/70 Addition to 1273616 Heading C2C  #-Hydroxyaldehydes of formula where R<SP>1</SP> and R<SP>2</SP> are aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals or R<SP>1</SP> and R<SP>2</SP> may complete a ring, but R<SP>1</SP> and R<SP>2</SP> are not both methyl, are prepared by reacting formaldehyde with an aldehyde of formula at elevated temperature in the presence of a tertiary amino group containing material and in the presence of water, the molar ratio of formaldehyde to aldehyde (II) being 0À5 to 1À5. Examples prepare 2-methyl-2-n-propyl-3-hydroxypropanol, 2 - ethyl - 2 - n - butyl - 3 - hydroxypropanol, and 1 - (hydroxymethyl)- hexahydrobenzaldehyde. Other specified aldehydes (II) are 2-ethylpentanol; 2-butyloctanol; 2-isopropylbutanol; 2-phenylpropanol; 2-(α- naphthyl) - propanol; 2 - (4 - chlorophenyl)- propanol; 2 - cyclohexylpropanol; cyclopentyl, cyclooctyl and cyclodecyl aldehydes; 2,3-diphenylpropanol; 2-cyclohexylbutanol; 2-pyridylpropionaldehydes; 2-furylpropionaldehydes and 2-N-methylpiperidylaldehydes.