baber/WOPTO huggingface dataset:
Patent GB-974783-A (GB)
Title: Adjustable steering column assemblies for motor vehicles
IPC: B62D1/18
Filed: 1963-10-24
Abstract: 974,783. Adjustable steering columns; switch arrangements. GENERAL MOTORS CORPORATION. Oct. 24, 1963 [Nov. 19, 1962], No. 42053/63. Addition to 971,252. Heading B7H. [Also in Division H2] An electric switch assembly on an adjustable steering column, comprising mounted in an upper steering column portion 24, an upper shaft portion 12 pivotable in a vertical plane and connected by a universal joint 16 to a lower shaft portion 14 within a lower column portion 50, comprises a switch housing 68, slidably mounted on the lower column portion 50 and connected to the upper column portion 24 by a flexible casing 44 clamped to both housing 68 and upper column portion 24, and a flexible actuator wire 40 slidable within casing 44 in response to movements of lever 28 to cause a contact member 84 slidable within housing 68 to selectively engage contacts 76 fixed to the housing 68. As shown, the switch controls vehicle direction indicators, suitable cancelling and detent mechanisms being provided on the upper steering column portion 24 and contact member 84 is provided with three contacts 78, 80, 82 (Fig. 4) and a projection 86 engaged by a loop on the end of wire 40. The housing 68 is secured by tags 70 (Fig. 4) to a support plate 60 provided with a pair of rivets (Fig. 5) which slide in slots 54, 52 of lower support plate 48 which is adjustably bolted to the lower column portion 50. A helical spring 66 (Fig. 1) mounted between arms 62, 64 on plates 48 and 60 respectively biases the switch housing 68 towards the steering wheel 10. Since flexible casing 44 is clamped to both the upper steering column portion 24 and plate 60, as the upper steering column portion is pivoted plate 60 and housing 68 slide on plate 48 and the lower column portion without altering the position of wire 40 within casing 44 and hence of contact member 84 in housing 68.
Patent GB-1192414-A (GB)
Title: Ring Laser
Inventor: MACEK WARREN MICHAEL
IPC: G01C19/66
Filed: 1967-09-15
Abstract: 1,192,414. Lasers. SPERRY RAND CORP. 15 Sept., 1967 [20 Sept., 1966], No. 42198/67. Heading H1C. Mode locking in a ring laser is prevented by arranging the counter-rotating light beams to be identically plane polarized where they pass through the active medium, and to be polarized in different respects in the remainder of the closed radiation path defined by the resonator mirrors. In Fig. 1 a discharge tube 14 contains a helium-neon active medium excited by r.f. applied to electrodes 18, 19, the tube having windows 20, 21 at Brewster's angle for horizontally plane-polarizing the two emitted beams. The optical resonator is formed by mirrors 10, 11, 12, quarter-wave optical plates 23, 24 being located between mirrors 11 and 12, respectively, for circularly polarizing the two counter-rotating beams in opposite respects in the closed optical path external to the active medium. The direction of circular polarization of each beam is reversed at each reflecting surface, and at no point in the resonator are the respective polarizations such that mode locking by back scattering can occur. Extraction of the two beams is effected at partially-transmitting mirrors 10, 12, respectively, the two beams being combined and applied to a photo detector 26 in the same polarization sense by a mirror 41 and a beam splitter 40. A frequency bias is introduced into the closed optical path by a magnetic-optic birefringent member 22 which, in combination with the circular beam polarizations produced by the quarter wave plates, produces different effective path lengths for the two directions around the resonator. In a modification, Fig. 2 (not shown), the mirrors 11, 12 are replaced by totally internally reflecting prisms (38, 39) each in contact with and located between a Brewster's angle window and a quarter wave plate. Energy extraction in the Fig. 2 and Fig. 3 embodiments is by a single partially-transmitting mirror 10 in conjunction with a reflector 28 and an analyser 25. The Fig. 3 arrangement has the Brewster's angle windows positioned so as to polarize the beams midway between the vertical and horizontal planes, and Faraday rotators 43, 44 are used to rotate the polarizations of the clockwise and anticlockwise beams through 45 degrees to the horizontal and vertical planes respectively in the closed optical path external to the active medium. Frequency bias is obtained by using a natural or electro-optic birefringent member 47 having its orthogonal principal axes S, F aligned parallel to the horizontal and vertical beams. In each embodiment, a polarization change due to one quarter wave plate 23, 24 or Faraday rotator 43, 44 is cancelled out when a beam passes through the second plate or rotator.
Patent GB-1532077-A (GB)
Title: Method and apparatus for controlling microwave ovens
IPC: H05B6/80
Filed: 1976-10-12
Abstract: 1532077 Automatic control CHEMETRON CORP 12 Oct 1976 [7 Nov 1975] 42299/76 Heading G3N  The temperature rise of an article heated in a micro-wave oven is controlled by setting the actual initial temperature and the desired final temperature of the article, at 66 and 64 which generates a threshold at IC-3, and then integrating, at IC-2 a signal representing electrical field strength in the cavity until the threshold is reached, at which time the desired temperature should have been reached and the power is switched off. The signal which represents field strength is modified before integration by subtracting a constant to compensate for the reduction in efficiency of the heating effect when large articles are heated, and the integral is normalized for efficiency of absorption of the radiation. A timing circuit IC-4 prevents operation of the oven for longer than a predetermined maximum time and protection is provided by the Zener diode CR7 which switches the oven off in response to an upper limit of field strength representing an empty cavity.
Patent GB-1527595-A (GB)
Title: Apparatus for measuring modulation transfer function of an optical component
IPC: G01M11/02
Filed: 1975-12-22
Abstract: 1527595 Modulation transfer function of an optical component SIRA INSTITUTE Ltd 22 Dec 1975 [30 Sept 1974] 42341/74 Heading G1A Apparatus for measuring the modulation transfer function of an optical component comprises a source of electromagnetic radiation, a MoirÚ fringe generator having two linear gratings with their planes parallel but not their lines and being linearly moveable relative to one another, a detector arranged to receive radiation via the generator and the component, and an analyzer of its output for determining the function. The source, of nickelchromium wire on a ceramic cylinder electrically heated to 1000 K is followed by a germanium condenser lens and a filter. A source of visual wavelength may be used instead. A collimator lens and the component being tested image the radiation on to a slit on the detector 16 via a 100Hz chopper. One grating is circular and the other rectangular and slidable normally to it lines and reciprocated by a stepping motor, both being rotatable about the axis of the circular one in the opposite sense to change the spatial frequency but not the orientation of the fringes. The detector 16 is connected to an analyser as shown in Fig. 3, where 43 is a phase sensitive rectifier and 42, 45, 47 and 57 are band, low, high and low pass filters respectively and meter 52 indicates modulation transfer function.
Patent GB-956303-A (GB)
Title: Improvements in or relating to method of and apparatus for reduction of ore
IPC: C21B9/16
Filed: 1961-11-27
Abstract: <PICT:0956303/C3/1> <PICT:0956303/C3/2> An oxygen-enriched blast is produced by processing atmospheric air to enrich it to an oxygen content of 60-70% and substituting the product for a proportion, e.g. 3-50% of the blower intake.  As illustrated in Fig. 1, blower 12 supplies compressed air to a conventional air separation plant 17 producing air concentrated to 60-70% oxygen, which is fed to the intakes of blowers 10 supplying blast air through stoves 5 to furnace 2. In the modification of Fig. 2, apparatus 17 may also produce liquid oxygen which may be stored in vessel 20 and subsequently made available through evaporator 23.  It is a feature of the invention that the gas concentration apparatus and its associated blower may be sited in or adjacent to the conventional blower house in proximity to the furnace ; also that the gas concentration blower may act as a stand-by for the blast blowers.
Patent GB-1461189-A (GB)
Title: Arrangement in gas-heated continuous-flow heaters
IPC: F24H9/20
Filed: 1974-09-30
Abstract: 1461189 Heater stoves; burners JOH VAILLANT KG 30 Sept 1974 [4 Oct 1973] 42452/74 Headings F4B and F4T In heating system in which the working fluid is heated by passage through a finned block 1 heated by a gas burner 6, blockage of the gas passages through the finned block or of the flue, or overload of heater causes turbulence in the combustion chamber 5 so that a thermostat 31, insulated from the combustion chamber wall, is contacted by hot gases flowing through an aperture 34 in the wall to control or cut off the gas supply. The thermostat 31 is connected in series with the pilot flame sensor 24, a contact 40 in series with a working fluid thermostat 37, and room thermostat 38 interrupting the circuit to a solenoid 8 to close the main gas valve 7 if the gas path becomes blocked or overloaded. A secondary gas valve 15 is controlled by the flow of working fluid through a constriction 9. A number of apertures 34 may be formed in the wall of the combustion space 5, the apertures in use being selected in accordance with the permissible turbulence, which is an indication of CO level in the exhaust gases, and the remainder being blanked off.
Patent GB-1155050-A (GB)
Title: An improved method for reproducing Code Elements Registered in a Moving Signal Carrier
IPC: H04L7/02
Filed: 1966-09-23
Abstract: 1,155,050. Electric digital data-storage. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 23 Sept., 1966 [28 Sept., 1965], No. 42601/66. Heading G4C. Information recorded magnetically in bit form on a moving signal carrier (e.g. drum, disc or tape) is in such a code that the carrier never contains three or more consecutive bits with a given one of the bit values and no code group begins or ends with two or more consecutive bits with this value, a synchronizing signal being derived from the information when read. The recorded information may be in a 5-bit code and, after read-out, be recoded into a 4-bit code before use.
Patent GB-1182706-A (GB)
Title: Improvements in Earth Moving Vehicles
Inventor: WILSON ROBERT PIERCE
IPC: E02F3/76
Filed: 1967-09-20
Abstract: 1,182,706. Scraping apparatus. R. P. WILSON. 20 Sept., 1967 [20 Sept., 1966], No. 42778/67. Heading E1F. An earth moving vehicle is separable into at least two parts, to facilitate transport. As described the vehicle has a centre part 12, Fig. 2, and side parts 14 which when assembled form a box into which earth is scraped from the ground by a blade 18. The box is emptied by a pusher operated by hydraulic rams, Fig. 3 (not shown). When separated the side parts 14 are provided with auxiliary wheels 70, 72 and driven from control positions 38, and the part 12 is transported by trailer-truck or rail. When assembled the parts are held together by bolts and by tensioned cables, and are supported on wheels 44, 46, the wheels 46 being driven. Hydraulic rams are used to tilt the box so that it will dig into the earth, Fig. 8, 9 (not shown). Side bulldozer blades are provided and are pivoted about horizontal and vertical axes by hydraulic rams, Figs. 1, 11 (not shown), and a transverse bulldozer blade may also be detachably fixed to the vehicle.
Patent GB-1172986-A (GB)
Title: Improvements in or relating to Brake Adjuster Mechanisms
Inventor: NEWSTEAD CHARLES
IPC: F16D65/48
Filed: 1966-09-26
Abstract: 1,172,986. Brake adjusters; cams. GIRLING Ltd. 6 Sept., 1967 [26 Sept., 1966], No. 42840/66. Headings F2E and F2K. In a brake adjuster mechanism, particularly for drum brakes, a rotatable cam 3 is provided with a cam surface in the form of a helix, preferably an Archimedean Helix, decreasing in diameter from one end towards the other and cam followers, in the form of brake shoe engaging tappets 4, arranged for relative movement along the helix so as to be displaced transversely of the axis of rotation of the cam. The cam is rotatably supported at its ends in an adjuster housing 1, the upper end portion 2A of the cam member being plain and circular and journalled in the housing while the lower end portion 2B is screw threaded into a bush 6 keyed to the housing by a peg 7, the cam being adapted to be rotated by means of a projecting spindle 8 having a squared end 9. The upper end portion 2A may be formed with a plurality of axially directed notches for the co-operation of one or more click springs (not shown) which afford stepwise adjustment of the cam. The inner ends of the tappets which engage the cam surface 3 may be shaped to have single line contact with the surface or may be generally V- shaped and profiled at each side of the V to have a two-line contact with the surface throughout the rotation of the cam. Several modifications are disclosed in the Specification, but not illustrated, for example the screw threaded members could be eliminated by spring-urging the cam axially to bring the axially facing shoulder of the helix to bear against the sides of the tappets. In an alternative arrangement the cam member may be rotatable but fixed axially and a separate, axially movable cam follower is interposed between the cam and the tappets. In a further modification the cam may be of other than an Archimedean Helix form and the tappets may not have constant velocity for constant cam angular velocity.
Patent GB-1073383-A (GB)
Title: Improvements in and relating to methods and apparatus for treating sewage and the like sludge
Inventor: PHILIPSEN HANS ERIK
IPC: C02F11/127
Filed: 1964-10-21
Abstract: <PICT:1073383/C1/1> Raw sewage is supplied via crude mechanical sorting 3 and grease trap 8 to clarifier 9.  The liquid passes via line 13 through biological filter 14 to a secondary clarifier 16 for discharge of purified liquid effluent at 18.  Sludge from clarifier 9 is concentrated (12) digested (21) and centrifuged (27) to give a solid product at 35 and a liquid product which after treatment on beds 40, and optionally chemical treatment, is returned via line 41 to the start of the process with overflow in concentrator 12. Sludge from clarifier 16 is recycled via line 17.
Patent GB-1278079-A (GB)
Title: Duct arrangement for guiding cartridge belts
IPC: F41A9/00
Filed: 1969-08-29
Abstract: 1278079 Cartridge belt guiding arrangement WERKZEUGMASCHINENFABRIK OERLIKEN-BUHRLE AG 29 Aug 1969 [4 Sept 1968] 43245/69 Heading F3C A cartridge belt feed duct for guiding a cartridge belt in its passage from a magazine to a weapon mounted for elevation, comprises first and second relatively rotatable ducts 10 (50, Figs. 1, 3, not shown) connectible to the magazine and weapon respectively, a rotatable disc 14 drivably connected to the second duct having an aperture 43 aligned for the passage of the cartridge belt and a flexible guide rail 44 in the first duct and connected at one end indirectly to the disc the profile of which rail is variable such that the part of the guide rail 44 adjacent the aperture 43 is always arranged in use substantially parallel to the rear surface of the cartridges being fed through the aperture for positioning of the disc corresponding to elevated positions of the weapon. The disc 14 may be connected to the second duct through a reduction gearing for rotation therewith. The guide rail 44 is pivoted at one end on a bell crank lever 20 pivoted on a pin stationary with the duct 10 and at the other end on a pin 27 also stationary with respect to the duct 10. The lever 20 is rotated by a rod 22 pivoted to the disc 14. In its bending the guide rail 44 is braced against a pin 18. The disc is provided with guide surfaces for the cartridge belt projecting into both ducts at the upper side of the aperture and two rollers 37, 38 in the duct (50) guiding the side and rear faces of the cartridges respectively.
Patent GB-1111841-A (GB)
Title: Examining surface finish
Inventor: SALMANOV ANATOLY NICKOLAEVICH
IPC: G01B7/34
Filed: 1963-12-01
Abstract: 1,111,841. Determining shapes electrically. KUIBYSHEVSKY POLITEKHNICHESKY INSTITUTE I. M. V. V. KUIBYSHEVA. March 1, 1965 [Dec. 1, 1963], No. 43277/63. Headings G1M and G1N. The surface finish of the track on the inner or outer race ring of a ball-bearing is examined using a device in which the race ring is rotated by a motor driven chuck while the surface is examined by a transducer needle moving in an aperture in one of three part-spherical skids the other two of which are biased by an extended spring so that the three grip the race on the surface to be examined; the skids and the stationary part of the inductive transducer are mounted substantially independently of the motor and chuck on a structure held on the base against rotation with the examined surface by a pin coaxial with the transducer needle. The output of the transducer may be displayed on an oscilloscope. The many drawings illustrate variants in the separate types of structures used for examining inner and outer race rings.
Patent GB-911098-A (GB)
Title: Improvements in or relating to textile drafting mechanism
IPC: D01H5/26
Filed: 1960-12-16
Abstract: 911,098. Drafting-apparatus. SKF. KUGELLAGERFABRIKEN G.m.b.H. Dec. 16, 1960 [Dec. 17, 1959 ; Oct. 20, 1960], No. 43356/60. Class 120 (2). In double-apron drafting-mechanism where a bridge-guide for the lower apron is at least adjustable transversely of the drafting-field and is detachably connected by a fixing member, e.g. a screw 14, to a fixed part of the machine, the guide 10, Fig. 2, is rigid and is located relatively to the fixed part 1, e.g. the bearing- bracket in which the lower rolls are mounted, through positioning members 16, Fig. 3, which can be exchanged to vary the position of the guide and which are secured by the screw &c. 14 which connects the guide to the fixed part 1. As indicated in Fig. 2, a lower apron 11 and a guide 10 are arranged on either side of bracket 1 ; one set of members 16 serves both guides at each bracket and each member 16 is slotted to receive a screw 14. Each guide has downturned parts 10<SP>1</SP>, Fig. 3, which engage the sides of a recess either in the bracket or a member secured to it by the screw 14, and inclined parts 10<SP>11</SP> to guide the apron. A block 15 may be provided between the guide and the members 16 and one or other of these parts may be magnetized to hold them together when they are removed. In an alternative form, Fig. 4, the bracket has ribs 19, co-operating with the members 16 which take the form of curved strips 16<SP>1</SP> which may be such as to permit the guide to be canted. To enable the position of the guide to be adjusted e.g. along the line of draft, the screw 14 may extend through a slot either in the guide or the holder above referred to; in the former case, the ends 10 do not extend as far as the sides of the recess in the bracket and the guide and the block may have co-operating ridges, Fig. 8. To permit the guide to be accurately positioned, markings may be provided on the bearing bracket 1, or on the locating means in Fig. 8.
Patent GB-881298-A (GB)
Title: Improvements in or relating to road rollers
Inventor: OTTERMANN HANS-GERT
IPC: E01C19/28
Filed: 1959-12-22
Abstract: 881,298. Steering towed vehicles. ABGWERKE G.m.b.H. Dec. 22, 1959, No. 43583/59. Class 79(5). [Also in Group XXXII] A trailer roller III, which may be equipped with a vibrator 8, is coupled to a traction roller I through a block 4 which may be adjusted laterally on a guide rail 5 by means of a spindle 6, and a hydraulic coupling device 11 is provided and is actuated in step with the steering mechanism of the traction vehicle. The front roller 12 may also be a vibration roller.
Patent GB-910803-A (GB)
Title: Back hoe excavator
Inventor: BROWN ARCHER WILLIAM
IPC: E02F3/42
Filed: 1960-12-19
Abstract: 910,803. Shovelling machines. AMERICAN HOIST & DERRICK CO. Dec. 19, 1960, No. 43594/60. Class 68 (1). In a back-hoe bucket excavator means are provided between the chassis 20 and the boom 24 of the excavator to positively prevent upward movement of the boom whilst the bucket 27 is digging into material and yet automatically allow upward movement of the boom as the bucket moves from the digging to a discharge position. The means may be hydraulically or mechanically actuated in response to the tension in the drag rope 31 of the excavator. The drag rope 31 either acts on a linkage operating a rotary valve controlling flow of liquid under pressure to and from an hydraulic jack 62 extending between the mast structure 43 and boom 24 of the excavator or a brake band of a brake drum associated with a gear-wheel mounted in the mast structure and co-operating with a toothed rack extending to and secured to the boom. -
Patent GB-970660-A (GB)
Title: Improvements in or relating to gas turbine power plants
Inventor: HARRIS FRANK ROSSLYN
IPC: F02C7/26
Filed: 1961-12-06
Abstract: 970,660. Gas turbine plant. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 20, 1962 [Dec. 6, 1961], No. 43717/61. Heading F1G. [Also in Division G3] A control system for a gas turbine power plant comprises means providing an indication of the temperature of the gases flowing through the turbine, means sensitive to that indication and upon occurrence of an excessive temperature acting to reduce the supply of fuel to the combustion chamber, there being also means providing an indication of the speed of the gas turbine and means arranged in accordance with that indication to effect suitable adjustment of the means acting to reduce the supply of fuel to the combustion chamber so that during starting up of the gas turbine plant, a rate of fuel supply to the combustion chamber is allowed which would be excessive for normal full speed operation. The plant shown comprises an air compressor 1, combustion equipment 11 and a turbine 5, an electrical tachometer 7 being mounted on the compressor-turbine shaft 3. Fuel is supplied to the combustion equipment through line 17 through control valve 19, the valve being connected at 39 to an E.M.F. comparison unit 35. Thermocouples or groups thereof are disposed at 21 at the outlet of the combustion equipment and at 23, 25, 27 at spaced locations along the gas flow path through the turbine. Signals from the thermocouples are passed through lines to the electronic scanner 31 which selects each of its inputs in sequence and applies the selected input to the unit 35 through lead 33. A signal indicating turbine speed is also passed to the unit 35 from the tachometer 7 through line 37. The comparison unit 35 repeatedly compares the selected signal applied through lead 33 with a reference signal and if the signal applied through lead 33 indicates an excessively high temperature the unit acts to adjust the valve 19 to reduce the flow of fuel. During starting, it is permissible to operate at temperatures which would be excessive for continued operation and the reference signal therefore has a high value. As the turbine approaches its normal speed, the signal from the tachometer acts to change the reference signal to a lower value. The unit 35 will thereafter act to reduce the rate of fuel flow at lower temperatures at the points monitored by the thermocouples. In place of thermocouples, there may be means which sense the air and fuel flows and provide an indication of the air/fuel ratio and thus the temperature attained in the combustion chamber. Again in place of a tachometer the means providing an indication of the speed of the gas turbine may comprise a device sensitive to the pressure of the gas stream through the power plant at a suitable point; alternatively, it may comprise a device sensitive to the fuel pressure at a point in the fuel supply system at which the pressure varies in a suitable manner with the turbine speed.