baber/WOPTO huggingface dataset:
Patent GB-959021-A (GB)
Title: Improvements in or relating to radar apparatus for warning aircraft of ground obstacles
Inventor: ALTERMAN FRANCIS JAY
IPC: G01S13/935
Filed: 1960-08-15
Abstract: 959,021. Pulse radar; distributers. LITTON SYSTEMS Inc. Aug. 15, 1960, No. 28257/60. Headings H4D and H4P. In an airborne pulse radar system " shadow '' pulses (eg. 268, Fig. 3C), are formed from the receiver video output signal, Fig. 3A, to correspond with the no-signal periods immediately following echoes from ground obstacles and shadow pulses of duration greater than a predetermined value, Fig. 3D, are analyzed to determine whether a characteristic thereof changes with respect to time. If such a change is of a predetermined nature a collision-warning alarm, or an automatic pilot, is actuated. In the embodiment, the short-duration pulses 269, Fig. 3C, are removed by a pulse-width discriminator 22, Fig. 2, incorporating a delay line 30 and the discriminator output, Fig. 3D, is fed to AND gates 135 ... 144 and to a bistable multivibrator 32 via a differentiating and clipping circuit 34 (see also Fig. 3E). At the end of each shadow pulse the grids 103, 104... of a known beam switching tube 80 are so pulsed as to transfer the beam from one target plate (e.g. 93) to the adjacent one, thus energizing the other input of the AND gates in turn. The radar synchronizing pulse 181, Fig. 3F re-sets the switching tube, and if more shadow pulses occur than there are target plates therein, blocking oscillator 59 is pulsed in addition to multivibrator 32 in order that all target plates be cut-off. On receipt of shadow pulse 288, Fig. 3J, integrator 154 develops a D.C. voltage proportional to the pulse width; Fig. 3M shows exemplary homologous shadow pulses occurring over many repetition periods and Fig. 3N shows the integrator output. Differentiator 156 output is as shown in Fig. 2Q. Alarm 210 is actuated if a shadow pulse width does not change with time, or is negative; to avoid false alarms when there are no shadow pulses, circuit 158 and AND gate 160 are provided. " OR " gate 200 enables any one of the analysing circuits 152, 220 .... 228 to actuate the alarm. To ensure that only those signals from apparently dangerous obstacles which repeat more than a predetermined number of times will be transferred to the alarm circuit a circuit 206 is inserted. Distributers, Fig. 2. The beam switching tube 80 of the kind described in " Electronics," April, 1956, comprises a cathode 82, ten " spades " 83 . . . 92, ten target plates 93 ... 102, five odd grids 103, 105 ... 111 and five even grids 104, 106... 112, is utilized to switch successive pulses from circuit. 22 to analysing circuits 152, 220, 221 ... 228 during one radar pulse repetition period.
Patent GB-967579-A (GB)
Title: Improvements relating to vehicle suspensions
Inventor: BARNUM ORVILLE GRANT
IPC: B60G11/27
Filed: 1963-07-17
Abstract: 967,579. Vehicle suspensions. PACTOR CORPORATION. July 17, 1963, No. 28315/63. Heading B7D. A vehicle suspension comprises a partcircular steel rim 23 welded to a longitudinal plate 26 which is itself welded to a longitudinal channel 27, vertical post 28 and cross-member 29 of the vehicle frame, the rim 23 having beads 24 and locating an inflated pneumatic tyre 19 having a carcase and inner tube and which on its inner circumference and beads 21 bears on a rim member 10 having locating flanges 11 and inner flanges 15 rigidly attached to upper and lower plates 12 and 13 defining a rectangular opening through which the axle 2 projects. In the vicinity of the opening, the axle 2 has flattened upper and lower portions and ears 17 by means of which it is connected to the plate 12 by bolts 16 and a plate 18. Ears 30 extend inwardly and rearwardly from the plates 12 and 18 and are connected by a bolt 31 to a stay 33 connected to the cross-member 29 by a rubber bushed pivot 35. The axle mounting on each side of the vehicle is similar. Each axle shaft 4 mounts a hub 5 having a flange 8 to which is connected the flange 7 of a wheel 6.
Patent GB-1437821-A (GB)
Title: Pavement curb and gutter concrete layingmachine
IPC: E01C19/48
Filed: 1973-06-14
Abstract: 1437821 Slip forming machine KERBIT PTY Ltd 14 June 1973 [16 June 1972] 28361/ 73 Heading E1S A machine for slip forming comprises: a frame having a rigid front portion 105 and a rear portion consisting of a pair of beams 106, 107 independently adjustable in a transverse direction in slides 113, 114, each beam supported by a wheeled assembly 200 with vertical adjustment means 212; an open bottomed hopper 600, Fig. 7, supported by the rear frame and containing a paddle assembly 900 to transfer a supply of concrete or asphalt to an open 'bottomed slip form mould 800 also supported by the rear frame; and a steerable front wheel assembly 300 supporting the front portion 105 of the frame. The wheeled supporting assemblies comprise two sets of tandem pairs on frames 206, 207 pivoted at 204, 205 on a frame 203, Fig. 2, which is itself pivoted at 215 to one of the beams 106, 107. The paddle assembly tends to move the machine forward with/against an hydraulic drive/braking motor MC operating on the front wheel assembly 300. Automatic depth and steering adjustment is by hydraulic motors M1, M2 and M3 proportionally controlled from box CB by detectors GS and SS respectively with feelers 1405, 1400 which engage a datum line, Fig. 3. Transverse slits near the trailing edge of the slip form mould. Figs. 15, 18 (not shown), enable entrained air to escape, and when used with asphalt the mould is heated. A motor 400 powers the hydraulic systems.
Patent GB-1378695-A (GB)
Title: Manufacture of glass fibre reinforced plaster board
IPC: B28B1/52
Filed: 1972-06-16
Abstract: 1378695 Plaster boards ASBESTOS CEMENT Ltd 16 June 1972 [16 June 1971] 28376/72 Heading D2A In a continuous process for the manufacture of glass fibre reinforced plaster board, an aqueous slurry of plaster is conveyed by an endless conveyor, a quantity of glass fibre strands is delivered onto the exposed surface of the slurry on the conveyor, water is removed from the mixture and the mixture is compressed against the conveyor whilst continuing to remove water. After separating the board from the conveyor it is cut to size. In Fig. 1 the slurry mixed with glass fibre strands is delivered from a batch mixer 1 to a reservoir 2 from which it passes to a carriage 3 which reciprocates over a conveyor 4 and delivers the slurry thereto. The conveyor comprises vacuum boxes 5 with perforated tops and apertured bases which are connected to a vacuum pump via transversely spaced stationary vessels 11 so that water is removed from the slurry during movement of the boxes over such vessels. Additional glass fibres are delivered by apparatus 16. The perforated tops of the boxes are covered by a filter cloth 9 and paper 15 fed from a roll 14. The mixture is compressed by a roller 21 and an endless belt 12. A glass fibre mesh layer may be delivered to the conveyor with the delivery of the slurry.
Patent GB-662311-A (GB)
Title: Improvements in and relating to electric circuit interrupters
IPC: H01H33/55
Filed: 1949-11-07
Abstract: 662,311. Liquid-blast circuit-breakers. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 7, 1949. [Nov., 10, 1948] No. 28483/49. Class 38 (v). A circuit-breaker has a hollow insulating casing 21 enclosing the contacts and surrounded by a ceramic shell comprising a number ofaxiallyjoined sections 22 flexibly mounted at each end both radially and axially so as to be protected from external shocks and shocks due to contact-operation. The casing 21 has at its left-hand end an annular groove co-operating with a wedge-like part of a member 23 bolted to the operating-mechanism housing 3, and at its right-hand end is supported by an insulator 2. Each end of the sections 22 has a metal flange 26, bolted to the section and resting on resilient rings 28 which absorb radial shocks; further resilient rings 29 being arranged between the flanges to absorb axial shocks. The space between the casing and the sections 22 is partially oil-filled and the spaces between the flanges 26 are sealed by bellows 33, further bellows 34, 35, being arranged at the ends of the shell. The flanges are apertured at 30 to allow oil-flow. The contact-arrangement and operating-mechanism are similar to those of U.S.A. Specification 2,162,588.
Patent GB-479622-A (GB)
Title: Improvements relating to mudguards for road vehicle wheels
IPC: B62D25/16
Filed: 1936-10-20
Abstract: 479,622. Mudguards. KIRKNESS, J. Oct. 20, 1936, No. 28495. [Class 136 (i)] A metal mudguard for road-vehicle wheels comprises a main portion fitting over the periphery of the wheel, and an upper flat facing or flanged frame which is fixed to the underside of the vehicle floor or framework. As shown, a main portion 4 is integral with a flat open rectangular flanged frame 5, the flange of which is secured by bolts 6 to the longitudinal members 7 of the vehicle floor. The rectangular opening in the frame 5 is closed by a sheet 8 of linoleum, metal, or other material interposed between the frame 5 and the vehicle floor 9. Cross bearers 10 are secured to the longitudinal members 7 in front and rear of the frame 5, and may be bolted thereto. A rubber or other flexible flap 11 may be fixed to the trailing edge of the mudguard.
Patent GB-244575-A (GB)
Title: Improvements relating to the pulverising and drying of materials
IPC: B02C23/00
Filed: 1924-11-28
Abstract: 244,575. Imray, O. Y., (International Combustion Engineering Corporation). Nov. 28, 1924. Gaseous currents, materials carried by.-A pulverizer mill having a reservoir in which the material is in agitation is used as a drier by operating the mill on the "in-circuit" system and either continuously or periodically withdrawing a portion of the air or gases in circulation, or periodically withdrawing the whole of such air or gases, fresh air or gases being admitted to take the place of that withdrawn. The air or gases are introduced into the system at a point close to that at which the air or gases are withdrawn. If an impact mill is used, it is provided with a chamber containing an agitator placed in the path of the air or gases where these enter the mill. The invention is particularly applicable to pulverizing fuel in that system of firing in which the powdered fuel is conveyed in suspension in air or gases directly from the collecting hopper of the mill to the furnace. The coal is fed to the mill a from a bin b, and a fan c withdraws air from the mill and delivers it to a cyclone separator d, the separated coal dust falling into a bin e and the air returning by a pipe f to the mill. The fan g which usually takes in air and delivers it charged with dust supplied by a rotary feeder h from the bin e to a furnace through a pipe i has its intake connected by a pipe k with the return air pipe f, which is connected by a pipe l with the source of hot combustion air supplied to the furnace so that a portion of the return air is continuously withdrawn from the system while a corresponding quantity of hot air is drawn into the system. Air-admission valves m, n are provided in the pipes k, l, and a control valve o in the pipe l.
Patent GB-1433790-A (GB)
Title: Antiskid braking control system
IPC: B60T8/68
Filed: 1973-06-15
Abstract: 1433790 Anti-skid systems BENDIX CORP 15 June 1973 28661/73 Heading F2F The description is identical to that of Specification 1,415,025, but the claims relate to an anti-skid system wherein a memory is actuated by a signal, which is produced from a wheel speed signal and denotes incipient skidding, and memorizes a function of this signal at the actuation moment, the output thereof being compared with a function of the instantaneous speed signal the desired output being generated if the instantaneous signal bears a predetermined relationship to the memorized signal, control means being responsive to the signal denoting incipient skidding and the derived output whenever the skid signal is generated to control a brake valve.
Patent GB-191513-A (GB)
Title: Improvements in bonding devices for electrical junction boxes
IPC: H02G15/113
Filed: 1921-10-28
Abstract: 191,513. Watson, J. F., and Calender's Cable & Construction Co., Ltd. Oct. 28, 1921. Junction boxes; earthcontinuity couplings.-The lead sheath, or lead sheath and armouring, of electric cables entering junctionboxes is or are rendered electrically continuous with a bonding strip by pouring molten metal .into bonding chambers which receive the cables and are adapted to be attached to the junction box. The chambers are preferably in two pieces, shown in section in Fig. 2. Two holes r are provided in the top section for the purpose of filling with molten metal p, and a hole v is arranged at each side for a bonding strip, rod, or wire t so that this may lie across the prepared cable. As shown, the sections of each bonding chamber are bolted together and engage the junction box by means of grooves e co-operating with dies f on the box. Annular rings j - - m in the bonding chamber, approximating to the size of the cables, hold stopping material n. Two or more cables may be bonded in one chamber.
Patent GB-1203971-A (GB)
Title: Direct digital control systems
IPC: G05B15/02
Filed: 1967-07-21
Abstract: 1,203,971. 971. Automatic process control. TOKYO SHIBAURA ELECTRIC CO. Ltd. July 21, 1967, No. 28722/67. Heading G3R. A direct digital control apparatus comprises a digital computer for sampling in succession measurement signals, for a plurality of control paths, to produce a first control signal to an amplifier for an actuator of each path, the signal being stored during the sampling interval, there being a switch means for connecting a second control signal from an analog circuit, responsive to the measurement signals, in place of the first control signal. Analogue signals, representative of the value of a controlled variable, are time-sequentially applied to an input of a digital computer which performs, during a sample period, a digital comparison with a reference value and supplies an analogue signal to an output. As shown, for one of a plurality of control systems responsive to a time sequenced computer 15, having an input 16 and an output to an operational amplifier 21, a capacitor 23, through switches 18a, 18b, stores the output of the amplifier 21 during the sampling period and is subsequently connected across the amplifier to maintain the output to a terminal 22 for a device not shown, for adjusting the controlled variable. A switch 20 transfers control of amplifier 21 to a manual adjusting circuit 24.  When a computer failure occurs the analogue signal is applied to a comparator 26 wherein it is compared with a reference value from a source 17. The error signal from the comparator 26 is fed through an integrating circuit 27, 28 and a switch 19 to the input of the operational amplifier; feedback being applied through a potentiometer 29, rate circuit 30 and a capacitor 32.
Patent GB-1019569-A (GB)
Title: Esters of 1ª‡,2ª‡-methylene-í¸-androstene-3,17ª‰-diol and a process for their manufacture
IPC: C07J53/00
Filed: 1964-07-10
Abstract: The invention comprises an ester of 1a ,2a -methylene - D 3 - androstene - 3,17b  - diol of the general formula <FORM:1019569/C2/1> wherein R1 and R2 each represent the acyl radical of an organic acid and may be the same or different, and a process for the manufacture thereof wherein a 1a ,2a -methylene-androstan-17b  - ol - 3 - one or 17b  - ester thereof is reacted with (a) isopropenyl acetate in the presence of an acid catalyst or in the presence of an alkali metal acetate; or (b) an acid anhydride in the presence of an acid catalyst or in the presence of an alkali metal salt of the acid corresponding to the anhydride; or (c) an acid chloride.
Patent GB-222702-A (GB)
Title: Improvements relating to the agglomeration of coal, coke, ore and the like
IPC: C10L5/10
Filed: 1923-11-16
Abstract: 222,702. Evans, W. E., (Ges. f³r Maschinelle Druckentwõsserung). Nov. 16, 1923. Briquetting processes.-Ore and like material is briquetted with a binder comprising sulphite cellulose waste liquor and a spreading medium consisting of a sludge-like substance such as coal sludge. The liquor may be mixed simultaneously with the sludge and raw material or first mixed with the sludge. Equal quantities of sludge and liquor are normally suitable.
Patent GB-630785-A (GB)
Title: Improvements in or relating to dry rectifier elements
IPC: H01L21/145
Filed: 1946-09-27
Abstract: 630,785. Dry contact rectifiers. STANDARD TELEPHONES & CABLES, Ltd. Sept. 27, 1946, No. 28958. Convention date, Oct. 26, 1945. [Class 37] The barrier layer of a selenium rectifier comprises cadmium selenide deposited by evaporation from a volatile carrier medium such as varnish or lacquer. In addition to varnish or lacquer the volatile medium may include an alcohol solution in concentrations varying from ¢ to 20 per cent, a solution of 5 per cent cellulose acetate in methyl ethylene glycol mono-methyl ether acetate, and methyl ethylene glycol mono-methyl ether acetate.
Patent GB-755309-A (GB)
Title: Improvements in or relating to wigged head for a doll or the like
IPC: A63H3/44
Filed: 1954-10-07
Abstract: 755,309. Dolls. AMERICAN CHARACTER DOLL CO., Inc. Oct. 7, 1954 [Feb. 10, 1954; July 23, 1954], No. 28979/54. Class 132(3) A doll's head 2 has a recess 14, at least partly defined by a ledge-like surface 16 making abrupt angles with the recessed and non-recessed parts of the head, within which is secured a resiliently flexible insert 18 having hair simulating strands extending therethrough and held partly by being gripped by the insert, the edges of the latter being left free of hair The head 2 and insert 18 may be of flexible material, e.g. vinyl resin or synthetic rubber. The strands of "hair" may be secured by stitching 24 and the thickness. of insert 18 may be reduced to accommodate the stitching without the insert pro-. jecting from the recess. The wig may be held in place by adhesive. In a modification, Figs. 6, 7 and 9, the head is formed with front and rear sections 28, 30 whose edges 32, 42 have bosses 38, 46 with apertures 40 and pins 48 respectively by which the two sections are held together. The recess 14a is formed on section 30 and extends to the edge 42 above the ears, the thickness being such that it leaves a slot 36 in edge 32 uncovered. Below the ears, the edge 16b of the recess 14a extends round the back of the head where apertures 52 are formed. The insert 18a is, as before, shaped to fit the recess 14a and has a pin. 56 and tongues 58 to engage the slot 36 and apertures 52. Positioning of the insert 18a may be further ensured by one or more projections 60 formed on the head section 30 or as part of headed studs 66 pushed through one or more apertures 64 in the head so that they can engage apertures 62 in the insert 18a.
Patent GB-323795-A (GB)
Title: Improved apparatus for teaching billiard strokes
IPC: A63D15/00
Filed: 1928-10-10
Abstract: 323,795. Bartlett, G. Oct. 10, 192a. Billiards, teaching-appliances for. - The apparatus comprises two plates connected bv arms so that the angular motion of one plate is transmitted to the other, a director for giving, the line of sight for the stroke being actuated by the relative movement of the plates. The two plates 1, 5, are connected by arms 8 on pivots 9. If desired, they may be pivoted at 9<a> or 9<b> instead of at 9. The upper plate 1 is of oval shape, and has a representation 2 of the object ball, a hole 3 concentric therewith and a protractor region the base of which is tangential to the representation 2. The lower plate 5 is circular, and has a representation 6 of the cue ball and a concentric protractor marking arranged as shown. The upper plate has two projecting pegs 11, 14, the former of which is situated on the periphery of the object ball representation 12 and the latter is situated a distance therefrom equal to the radius of the object ball. The lower plate has also two pegs correspondingly arranged as shown, and each plate has an arrow as indicated. An elastic band 10 embraces the pegs 11, 14, 15, 12, and is collinear with them and with the arrow 13 when a line passing through the centre of the balls is collinear with the line of travel of the object ball. In use, the representation 2 of the object ball is placed concentrically over the object ball, the arrow 13 is pointed in the direction which it is desired the object ball should travel, and the peg 12 is brought into line with the peg 14 and the centre of the cue ball. One of the sides of the band 10 then indicates the line of sight for the stroke.
Patent GB-899377-A (GB)
Title: Improvements in textile fabrics and articles
Inventor: KIMMERLING FRANCOIS CHARLES
IPC: D06M15/267
Filed: 1959-08-26
Abstract: 899,377. Coated fabrics. COURTAULDS Ltd. Aug. 25, 1960 [Aug. 26, 1959], No. 29156/59. Class 140. A textile fabric, which may be made up into an article of protective clothing for personal wear affording resistance against hot metal, comprises a woven base fabric of cover factor (CF) defined by the expression CF=N#d where N is the number of yarns per linear inch and d is the denier of the yarns, of 900 to 2300, one side of the base fabric, which forms the outer side of the article, carrying a coating of a thermoplastic resin of softening point 80‹ to 120‹ C. The base fabric may be of yarns of cotton, viscose rayon and/or regenerated cellulose. The coating may weight from 25 to 100 grams per square metre of fabric and may leave from 10 to 50% of the pores of the base fabric unfilled. The base fabric may be rendered water-repellent by treatment with a wax or other agent imparting water-repellency. The base fabric may be impregnated with a flameproofing agent, e.g. borax, boric acid, ammonium sulphamate or other ammonium salt, antimony oxide with titanium dioxide or with a chlorinated organic compound such as polyvinyl chloride and/or a chlorinated paraffin wax, tetratris - (hydroxymethyl) - phosphonium salts particularly the chloride, tris-(hydroxymethyl) phosphine oxide, and a compound containing, attached to nitrogen, at least two hydrogen atoms capable of being replaced by methylol groups by the action of formaldehyde, or a methylol derivative of such a nitrogen compound or a mixture thereof, as described in Specifications 740,269 and 761,985. The thermoplastic resin may be addition polymers of esters of acrylic or methacrylic acid, e.g. methyl acrylate, methyl or ethyl methacrylate ; addition polymers of halogen containing vinyl compounds, e.g. polyvinyl chloride, internally plasticized copolymers of vinyl chloride with, for example, alkyl esters of acrylic or methacrylic acid particularly ethyl acrylate. The coating composition may contain a thickening agent, e.g. methyl cellulose or sodium carboxymethyl cellulose.
Patent GB-500445-A (GB)
Title: Improved means for tensioning the tops of cycle saddles
IPC: B62J1/10
Filed: 1937-10-26
Abstract: 500,445. Saddles. BROOKS & CO., Ltd., J. B., and BRIDEN, H. S. Oct. 26, 1937, No. 29175. [Class 136 (iii)] The top of a cycle saddle is tensioned by means of gearing comprising a rotatable actuating-part disposed horizontally, or substantially horizontally, or extending laterally from the median plane of the saddle, so as to be readily accessible for manipulation. A screwthreaded tensioning-pin 3 is mounted non- rotatably in a shackle 4 at the front end of the underframe and also engages a depending part of a peak plate 5 secured to the top 1. The shackle.4 is of hook form to engage beneath the U-shaped front end of the underframe 2, and has lateral extensions 4a engaging over the branches of the latter. An internally screw-threaded worm-wheel 6 engages the threaded part of the pin 3, and is actuated by a horizontal worm 7 provided with a head for operation by a screw-driver, spanner, . &c., whereby the tensioning-pin 3 is moved axially. The worm and worm-wheel are mounted in a housing 8 formed on, or non-rotatably attached to the shackle 4, as by ears 8a engaging over the edges of the front portion of the shackle. The worm and worm-wheel may be replaced by spur, bevel, &c. gearing.