baber/WOPTO huggingface dataset:
Patent GB-896394-A (GB)
Title: Control system for motor road vehicles
IPC: G05D1/02
Filed: 1959-08-25
Abstract: 896,394. Inductive control of apparatus; radar. GENERAL MOTORS CORPORATION. Aug. 25, 1959 [Sept. 8, 1958], No. 29020/59. Classes 40(5) and 40(7). In a control system for motor road vehicles the path to be travelled is dividedinto a number of successive sections in each of which there is a transmission line for establishing audio-frequency (A.F.) and radiofrequency (R.F.) fields along the roadway and for each section there is a control unit to supply currents to its transmission line to establish the fields and to receive re-radiated signals from vehicles indicative of the speed thereof and such that vehicles travelling in a section above or below a predetermined speed initiate a control signal in the control unit to a unit of another section to modify the speed of vehicles in that section; and each section is provided also with receiver lines for sensing an obstacle in that section and for initiating a control signal to a preceding section. Each road section has a buried transmission line 16 defining the centre of the path the vehicles are to follow and includes conductors 20, 22 transposed at intervals to form successive zones of reversed polarity; the line is coupled to A.F. oscillator 28 via a normallyclosed switch 32. Oscillator 28 frequency can be reduced by a signal to input 34 and increased by a signal to input 36. Controlled vehicles are each fitted with pick-ups so disposed as to provide a signal to control power steering to guide the vehicle along the transmission line. The voltage received by the pick-up unit is modulated at a frequency proportional to vehicle speed, due to transpositions 24. A signal to set the speed at which the vehicle is to travel is transmitted to it by controlling the A.F. frequency and a servo system connected to the vehicle throttle control compares the prevailing vehicle speed signal with the 'command' speed signal and adjusts the engine output to maintain the vehicle speed at the command speed. Dopplereffect means are provided for additional control to cater for stationary obstacles and un-controlled vehicles: R.F. current from oscillator 38 is also injected into line 16 and the Doppler beat frequency is connected to the inputs of a low-pass filter 54 and a high-pass filter 56, and to a switch 57, via amplifier 52. The filter cut-off frequencies are made equal to the Doppler beat frequency produced by a vehicle travelling at a predetermined speed; the filter outputs are connected to respective relays 58, 64 which have normallyopen contacts. The relays control an indicator at a central point to alert the road controlling authorities and modify the A.F. fed to preceding road sections to slow down or stop following vehicles. Receiver lines 18 are provided to detect stationary obstacles.
Patent GB-617390-A (GB)
Title: Improvements in fluorescent materials and light sources incorporating the same
IPC: C09K11/08
Filed: 1946-09-30
Abstract: 617,390. Luminescent materials. ORBIT ELECTRICAL CO., Ltd., and THOMAS, H. J. Sept. 30, 1946, No. 29073. [Class 39 (i)] In preparing a manganese activated zinc borate a crystal-promoting material is added to the starting ingredients. The additives may be halides, sulphates, phosphates, ethylene glycol or glycerine. The manganese 1 per cent may itself be added in the form of the halide. The zinc borate is the orthoborate or one containing more zinc than the orthoborate, firing of the mixture of zinc oxide, boric acid, the flux, e.g. zinc chloride or ammonium sulphate and the manganese compound, e.g. manganese chloride or dioxide, being carried out at about 900‹ C. The fluorescence is predominantly long-wave, e.g. pink or salmonpink.
Patent GB-185379-A (GB)
Title: Improvements relating to electric spark indicators
IPC: F02P17/02
Filed: 1921-11-02
Abstract: 185,379. Poulsen & Co., L. Sept. 1, 1921, [Convention date]. Current detectors.-A discharge device such as a spark g a p , or Geissler, helium, or neon tube, is placed in parallel with an inductance or resistance in an internal combustion engine ignition circuit the inductance or resistance shortcircuiting the gap &c. to the magneto-impulses but being unable to do so for the high-frequency impulses produced when a discharge takes place at the sparking-plug. As shown in Fig. 2, terminals 10, 11 made, for example, of carbon, are mounted on conductors 8, 9, in view through a window 7 in the box 5. The resistance or coil 12 is connected by the posts 13, 14 to the conductors 8, 9, and a plate of mica &c. 17 may be interposed between the spark gap and coil &c. 12. A threaded pin 16 and a nut on the conductor 8 are used for connecting the current lead, while an opening 15 allows the end of the conductor 9 to be passed over the outer end of the sparking-plug electrode. A rod of copper oxide having an ohmic resistance of 100000, or a coil comprising 25 to 35 turns and having a diameter of a few centimetres are specified as suitable forms for the member 12.
Patent GB-842880-A (GB)
Title: An improved mechanism for winding weft bobbins and automatically charging the bobbins into holders
IPC: B65H67/06
Filed: 1956-09-24
Abstract: 842,880. Winding and collecting bobbins. MASCHINENFABRIK RUTI AKTIENGESELLSCHAFT VORM. CASPAR HONEGGER. Sept. 24, 1956 [Sept. 23, 1955], No. 29201/56. Classes 120(2) and 120(3).  Wound weft bobbins 25 discharged by a winder are charged into holders 26, each adapted to receive at least one row of bobbins for transference to a loom; the holders are carried by a conveyer 21 which is stepped, always in the same direction, each time a row of bobbins has been completed and which can accommodate a plurality of separate holders so that a filled holder may be removed, and an empty holder placed on the conveyer, during filling of another holder and after filling of one holder an empty one is automatically passed to the filling station. As shown, a wound bobbin 25 automatically discharged from spindle 14, Fig. 2, falls through a funnel-shaped guide 31 into one of the holders 26. A spring-loaded retaining flap 29 yields under the bobbin's weight to allow passage thereof. The falling bobbin rocks a feeler 32, Fig. 2, to momentarily close a switch 33 which is in series with a second switch, operated by the bobbin discharge mechanism, in. a control circuit for the conveyer motor. When the holder is full, the last bobbin keeps feeler 32 depressed and switch 33 closed; when the second switch is closed by the winder mechanism, the conveyer is stepped forward to move the filled holder 26 and bring the next holder beneath guide 31. If a further empty holder is missing, a feeler 36, Fig. 1, falls to open a switch 35 and interrupt the drive to the winder. When a filled holder reaches the end of the path of conveyer 21, it opens a switch 38 to stop the conveyer and preferably also the winder. Holders 26 are open at the side, the bobbins 25 being retained against. axial displacement by guiding ribs 27, Fig. 3. The holders are suitable for use directly in the automatic bobbin-changing system of a loom. Holders such as 26 may be filled in the inverted position, bobbins being pushed into the holder by a plunger and feeler 32 being replaced by a feeler protruding through the closed top end of the holder. An alternative form of holder is subdivided by partitions into compartments to accommodate a number of rows of bobbins. Preferably, the traverse guide 16 of the winding machine is controlled so as to produce at the tapered bobbin end some additional windings separate from the main winding, to facilitate finding the loose end of the yarn.
Patent GB-779477-A (GB)
Title: Steam power plants with flue gas and tapped steam feed water preheaters
IPC: F22D1/02
Filed: 1955-10-13
Abstract: 779,477. Feedwater heating systems. SULZER FRERES SOC. ANON. Oct. 13, 1955 [Oct. 13, 1954], No. 29244/55. Class 64(1) Two economizers in a steam power plant are connected to each other through a tapped steam feedwater preheater. In the form shown, there are three economizers 7, 8, 9; and four tapped steam preheaters 16- 19, connected together in series, with the preheaters 18 and 19 between the economizers 8 and 9 and the economizers 7 and 8 respectively. The preheater 18 receives steam from the outlet of the turbine 11 that is connected to the steam reheater 6.
Patent GB-1471985-A (GB)
Title: Electrical current supply installations
IPC: H01R25/14
Filed: 1974-07-02
Abstract: 1471985 Channel track installation ROTAFLEX (GREAT BRITAIN) Ltd 2 July 1974 [6 July 1973(2)] 29370/74 Heading H2E An electrical current supply installation of the continuous outlet type comprises a channelshaped track member in which are mounted a plurality of insulated conductors extending longitudinally of the track and accessible from the interior of the channel and a plurality of adaptors insertable in the channel and having contact fingers engageable with respective conductors wherein at least some of the conductors are connected to an electrical information signal supply circuit, such as an audio signal supply. In one embodiment, two audio signals A 1 , A 2  are fed via respective conductors 14, 16 to fingers 21, 22 and selected by switch 28. The adapter 20 has a block 33 to prevent incorrect insertion. Conductors 17, 19 are connected to a power supply. The track may contain only two conductors or as many as seven. The conductors may be used for two power sources together with a stereo audio channel. Alternatively four audio channels or an intercom channel may be provided optionally with multiplexed signals. Three-phase power can be supplied through the tracks. Microphones may be used on the tracks to give a surveillance system.
Patent GB-693713-A (GB)
Title: Improvements in or relating to electron velocity modulation discharge apparatus
Inventor: BECK ARNOLD HUGH WILLIAM
IPC: H04B14/02
Filed: 1950-12-01
Abstract: 693,713. Velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. Dec, 1, 1950, No. 29432/50. Class 39(i) In a velocity-modulation tube the electron beam generating means comprises a cathode and a grid at the same high frequency potential and closely spaced to define a region in which the electron beam current is fully space charge limited, the cathode-grid spacing and the accelerating potential being such that the electron transit angle between the space charge induced potential minimum and the grid is not greater than one radian at the highest frequency of the electromagnetic waves, so as to reduce shot noise in the beam. A detailed mathematical analysis of the operation is given. In one form, Fig. 3, the invention is applied to an amplifier having buncher 7 and catcher 8. The indirectly heated cathode 10 and grid 12 are coupled by a condenser 16 integral with the grid mounting within the tube so as to be at the same high frequency potential at all frequencies within the band width of resonator 7. The cathode and grid may be plane or curved as long as they are parallel. The input is from a crystal (silicon) detector or frequency changer of a receiver. The spacing between grid 12 and resonator gap 20, 22 is not critical as regards shot noise suppression. In another form, Fig. 4, the invention is applied to a travelling wave amplifier. The input end of helix 27 is connected by rod 28 to disc 25 sealed through the envelope which together with annular spring clip 33 attached to the wall of the input guide forms a 'door-knob ' coupling probe and the other end of the helix is connected to collector 29. A coil 32 focusses the beam, and disc 25 also serves as the final gun anode. The cathode 10 and grid 12 are enclosed by a screening grid 26. After passing grid 12 the beam may be accelerated or decelerated.
Patent GB-1438520-A (GB)
Title: Particle counters
IPC: G01N15/12
Filed: 1973-06-21
Abstract: 1438520 Particle analysis apparatus BECTON DICKINSON & CO 21 June 1973 [21 June 1972] 29524/73 Heading G1N To provide an easily cleanable aperture in Coulter type apparatus for investigating particles suspended in a fluid, the aperture ruby 48 is a press-fit in a thin flexible polyester sheet 36 which slides between acrylic plates 54, 56 containing the cell. The stainless steel inlet and outlet tubes 24, 26 act as electrodes. Central recesses 88 in the plates hold 'O'-rings 90 to seal with the slide (or with one another when the slide is withdrawn). The cell plates 54, 56 are screwed to a base block 52 having bore therein to accomodate a sample bottle 22 which is retained by a plastics blade-spring catch 76. Alternatively the base may connect to a conduit for continuous 'in line' monitoring.
Patent GB-456616-A (GB)
Title: Improvements in and relating to apparatus for objectively determining the degree of loudness of noises
IPC: G01H3/00
Filed: 1935-10-25
Abstract: 456,616. Measuring sounds. REINSCH, A., and SCHMIDT, U., Technische Hochschule, Berlinerstrasse, Charlottenburg, Berlin. Oct. 25, 1935, Nos. 29551 and 29552. Convention dates, Oct. 26, 1934 and Dec. 10, 1934. Drawings to Specification. [Class 118 (ii)] To determine when an occasional noise exceeds a general noise level, the output from a microphone is connected through an amplifier to an indicator which is biassed to operate and lock when the noise level exceeds the prearranged level. A neon tube is used as the indicator in the system described, the tube being normally biassed below the striking voltage but above the holding voltage of the lamp. The biassing voltage is adjustable to vary the sensitivity of the instrument. The indication is cancelled either by a hand-operated key or by a time circuit arranged to cancel the indication after it has been showing for a predetermined time. The Specification as open to inspection under Sect. 91 describes embodiments which include sound producers for calibrating the instrument. This subject-matter does not appear in the Specification as accepted.
Patent GB-226804-A (GB)
Title: An improved automatic inflator for operation by an internal combustion engine
IPC: B60C23/14
Filed: 1924-12-10
Abstract: 226,804. Surlemont, H. J. Dec. 29, 1923, [Convention date]. Cylinders adapted to supply air for secondary purposes.-An aircompressing attachment for a cylinder of an internal-combustion engine for inflating tyres &c. comprises a casing having an atmospheric air inlet, a connectinn to the cylinder, and an outlet to the tyre, and a single valve with regulating means, the valve being moved to control the air inlet and the cylinder connection. The regulating means may comprise a screwed stem to which the valve is elastically attached, a stop limiting its movement. The attachment shown comprises a cylindrical body 1 with a cap and a screw-threaded lower part for attachment to the cylinder either directly or by means of a Y-piece carrying also the sparking-plug. A screwed stem 6 passes through the cap, the lower end of which is plain and carries a valve 5 by means of a spring-pressed tubular guide-piece 7 sliding on the enlarged base of the rod. A collar 8 on the rod limits the relative upward movement of the valve which may be pressed into contact either with the seat 3 of the cylinder connection or the seat 4 which controls air holes 13. A disc 14 closes the end of the guide piece 7. An outlet 12 with a check-valve is provided leading to the tyrets &c.
Patent GB-264288-A (GB)
Title: Improvements in ice-cream containers
IPC: A23G9/04
Filed: 1925-11-25
Abstract: 264,288. Butterfield, C. S. Nov. 25,. 1925. Cans; ends; footrings; bottoms.- A steel or iron ice-cream container has a flat or concave flanged bottom b, butt welded flush with the lower edge of the cylindrical body part a, foot-ring e being spot - welded or otherwise attached by its upper end to the body, or both to the body and the bottom. The container has a flangel cover c fitting against a bead f on the body.
Patent GB-1190198-A (GB)
Title: Aircraft Speed and Vertical Path Control
IPC: G05D1/06
Filed: 1967-06-28
Abstract: 1,190,198. Automatic control of aircraft. BODENSEEWERK GERATETECHNIK G. m. b. H. June 28, 1967 [June 29, 1966], No.29794/67. Heading G3R. The throttle of an aircraft is controlled in response to the difference between actual air speed and a reference value and, in addition, to a signal indicative of acceleration in the direction of the yaw axis. The elevators are controlled by a separate control logs in response to deviations from a given altitude or glide path, but in aircraft whose engines are below or above the centre of gravity the loops interact, a change in engine thrust causing a change in pitch and hence altitude. The object of the invention is to de-couple the loops so that a path deviation adjusts the thrust to correct the path and so maintain the set speed before an actual speed change occurs. The signal from a syncro 19 responsive to an air speed detector is compared at 33 with that from a reference syncro 49 which is positioned by a servomotor 46 in accordance with a reference voltage selected by switches g ... c according to the angle of landing flaps which actuate relays G . . . C. The error signal is rectified and filtered and is added at 32 to a signal indicative of acceleration along the yaw and the roll axis. This is derived from a longitudinal accelerometer (23), Fig. 3 (not shown) mounted in the plane of the yaw and roll axis but with its own axis at an angle to the roll axis; it thus is responsive both to longitudinal acceleration along the roll axis (for use in a gust control system as described in Specification 1,187, 325) and to acceleration at right angles to this along the yaw axis. The accelerometer has a compensating coil, represented at 24, supplied with a voltage from a potentiometer 27 to compensate for the effect of gravity due to the inclination of the accelerometer, and with the value (1-cos y), where y is the roll angle, to compensate for the centrifugal effect of a turn, and also with a signal for pitch angle which is amplified in a proportional and derivative amplifier 57 whereby the proportional component compensates for that effect of gravity which depends upon angle of tilt and the derivative component compensates for the centrifugal effect produced when a deliberate change in the vertical flight path is made, since this is accompanied by a change in pitch whereas accelerations along the yaw axis caused by air currents are not. The compensating coil also receives a signal from the accelerometer itself via a differentiating amplifier 29 for damping purposes. The signal combined at 32 is then passed through an amplifier 52 which transmits the signal with differential and proportional components with a time delay T and operates the throttle by a servomotor 54 which acts as an integrating element; the overall effect is that PID-control is obtained.
Patent GB-857911-A (GB)
Title: Improvements in or relating to electric motor and brake control systems
IPC: B66C13/26
Filed: 1957-09-23
Abstract: 857,911. Control of two A.C. motors. IGRANIC ELECTRIC CO. Ltd. Sept. 23, 1957 [Sept. 21, 1956], No. 29807/57. Class 38 (3). A barge is hauled in different directions by means of induction motors 1, 2, each of which has an electro-dynamic brake 16, 17, comprising windings 16a, 17a and a drum controller DC is provided for initiating operation of a selected one of the motors, the brake winding of the other motor being energized at the same time in accordance with the speed of the selected motor. When motor 2 is energized for hauling the barge downstream, a magnetic amplifier MA2 is disconnected to prevent braking of the motor 2, but the brake winding 16a for the motor 1 is energized from a magnetic amplifier MA1 which has output windings 25a, 25b, bias windings 26a, 26b and signal windings 27a, 27b. These latter control windings are supplied in accordance with the voltage drop across resistor R6-4 in the secondary circuit of the motor 2. The motor 2 starts with all the resistors effectively included in the secondary network and as the secondary current decreases with increase of speed, the output of amplifier MA1 increases to provide a greater braking torque. As the controller DC is moved to operating positions corresponding to higher speed-points for the motor 2, the magnetic amplifier MA1 is rendered ineffective to energize the brake winding 16a until the speed of the motor reaches a predetermined value, and effective to increase the brake-energization with increasing speed above that value. Adjustment of the controller DC in the " upstream " direction energizes the primary winding of the motor 1, interrupts the connections to the magnetic amplifier MA1, and causes the signal windings of the amplifier MA2 to be supplied with rectified current proportional to the secondary current of the motor 1. If a minimum braking torque is required under any operating condition, closure of switch 45 or 67 connects brake winding 16a or 17a across rectifier bridge 38. Specification 827,871 is referred to.
Patent GB-1197408-A (GB)
Title: Methods of Forming Pre-Stressed Laminated Heads for Pressure Vessels
Inventor: PECHACEK RAYMOND E
IPC: B21D51/24
Filed: 1968-06-22
Abstract: 1,197,408. Making pressure vessels, welding by fusion. HAHN & CLAY. 22 June, 1968, No. 29887/68. Heading B3A and B3R. A method of making a pre-stressed laminated pressure vessel head includes providing a solid inner layer L, forming a plurality of curved gores 10, 11, 12, applying an external force on each gore to engage the surface of the layer L, depositing weld metal around substantially the entire periphery of the gores, the quantity of weld metal being sufficient to cause the outer layer to place the inner layer under compression when the welds cool. The layer L is formed by forging or other shaping operation and is normally of quenched and tempered steel, stainless steel or carbon steel. The gores 10, 11, 12 are cut from sectors (S) of steel plate, Fig. 4 (not shown) and have a number of holes drilled at spaced locations. After drilling, a gore 10 is heated to about 500‹ F. and placed on the layer L, which is preferably heated to about 175‹-200‹ F. The gore is held in place by a hydraulically actuated ram 28, which is adjustably mounted on an arm 20. The arm is fitted with a hook 25 and is pivotally mounted on a pin 21 formed integrally with a base 22 which is temporarily welded to the layer L. The ram 28 is placed in positions adjacent the edges of the gore, where tack welds are made. The remaining gores 10, 11, 12 are similarly tack welded in place. The final welds between the gores are then made or they may be made when adjacent gores have been tack welded in position. The welds are ground and the holes are used to determine the gap between each gore and the surface of the layer L. If the gap is excessive, the gore is cut across in the area of the excessive gap and rewelded to reduce the gap. Further layers B, C, D, E are similarly added until the head is of the required thickness. The base 22 is removed after all the layers have been applied and circular sections (50), preferably also provided with measuring holes may be added, corresponding to each of the outer layers, Fig. 10 (not shown).