baber/WOPTO huggingface dataset:
Patent GB-1148191-A (GB)
Title: Surface contour monitoring apparatus
Filed: 1966-06-07
Abstract: 1,148,191. Photo-electric following of surface contours. BOEING CO. June 7, 1966 [June 18, 1965], No.25380/66. Heading G1A. The contour of a surface is determined by tracing a light spot across the surface, causing a photo-electric receiver to follow the spot and computing the co-ordinates of the contour traced from the orientation and position of the receiver and light spot source. In one arrangement Fig. 1 a light spot, which is the image of an aperture covered by a diffuser, is directed on to the surface from a light spot source 12 and traced across the surface in the x-direction by continuous or stepwise movement of the carriage 11 running on rails 32, 34; the spot is moved in the Y-direction to a new X-track by movement of the whole frame on rails 13. A photo-electric receiver 15 is mounted upon the carriage 11 with its axis 17 in the vertical plane of the light spot beam and follows the spot - that is it maintains its axis 17 passing through the spot on the surface - by appropriate angular movement. Within the receiver are two photo-resistors positioned one on either side of the axis 17 in the vertical plane and to each of which is directed light from the spot by a beam-splitting prism; misalignment of the axis 17 unbalances the photoresistors to cause a servomotor to rotate the receiver and realign it. From the angle # between the receiver axis 17 and the light spot beam and from the x-y position of the carriage 11 which are given by the extent of rotation of the servomotors 62, 50 and 18, the co-ordinater of the contour can be computed, in cartesian, cylindrical or polar form. In a second arrangement Fig. 3 (not shown) the angle between the receiver and light source is fixed and both receiver and light source move in a vertical direction to align the receiver axis with the light spot as the contour varies. In a third arrangement Fig. 5 (not shown) the receiver and light source are stationary but are each mounted for angular movement in two orthogonal planes to follow and direct a light spot at any point on the surface. This arrangement is more suited to deriving polar co-ordinates for the contour.
Patent GB-774655-A (GB)
Title: Improvements in photographic light-sensitive materials
IPC: G03C1/46
Filed: 1955-09-05
Abstract: 774,655. Photographic light-sensitive material. KODAK, Ltd. Sept. 5, 1955 [Sept. 9, 1954], No. 25408/55. Drawings to Specification. Class 98(2) Black-and-white photographic lightsensitive material having improved printing characteristics comprises a transparent support having on one side thereof two silver halide emulsion layers, the emulsion layer nearer the support having a sensitivity in the green spectral region at least one-tenth of that in the blue spectral region and having substantially no sensitivity in the red spectral region, and the emulsion layer further from the support having substantially equal sensitivity in the blue, green and red spectral regions, and having a speed at least log E = +0.3 faster than the speed of the other emulsion layer. The silver halide may be principally silver bromide, the emulsion layer nearer the support may have a green-sensitivity substantially equal to its blue-sensitivity, and the emulsion layer further from the support may have a blue : green : red spectral sensitivity ratio of 6 : 5 : 4 or of 5 : 4 : 3 to 5. The material is capable of giving a reduced density scale upon red light exposure while retaining adequate gradient in the shoulder portion of the characteristic curve and the advantages of increased exposure latitude. The support may be coated with a gelantino silver bromide layer sensitized with a green sensitizing dye to give a green-sensitivity at least one-tenth of and preferably about equal to the inherent blue-sensitivity of the emulsion, with an optional interlayer, and with a gelatino silver bromide emulsion which is panchromatically sensitized to give substantially equal blue, green and red sensitivities. The support may carry an antihalation layer. In an example, a subbed cellulose acetate support carrying an antihalation backing layer is coated first with a gelatino silver bromide emulsion sensitized with 1 : 1<SP>1</SP> - diethyl - pseudocyanine iodide and 1<SP>1</SP> : 2 - diethylthia - 2' - cyanine iodide and having a spectral sensitivity ratio of blue to green 10 : 1, and then with a gelatino silver bromide emulsion sensitized with 2 : 2<SP>1</SP> - diethyl - 8 - methyl thiacarbocyanine iodide to give a green : red sensitivity ratio of 6 : 5 and having a speed of about log E = +1.5 greater than that of the first emulsion. At the thickness at which they are coated, the two emulsions have about the same contrast in the straight line portion of the characteristic curve.
Patent GB-1092478-A (GB)
Title: Vertical take off and landing jet aircraft
IPC: B64C29/00
Filed: 1965-06-16
Abstract: 1,092,478. VTOL aircraft. DE HAVILLAND AIRCRAFT OF CANADA Ltd. June 16, 1965 [Jan. 19, 1965], No. 25486/65. Heading B7G. A vertical take-off and landing aircraft has two gas turbine engines, the exhaust gases of which are ducted to cylindrical plenum chambers 25, 26, each having a slot 27 extending longitudinally along the fuselage, through which the gases are discharged downwardly over the fuselage. The slots are covered by shrouds 36 pivoted to the fuselage at 39 and movable to form passages through which airflow is induced by the slot discharge. The flows are directed downwardly by keel members 34 and by the discharge from a central plenum chamber 42 supplied through a branch pipe from the jet pipe of a forward propulsion turbojet or turbofan engine, a valve being provided at the branch. The shrouds attenuate noise from the slots, which is also reduced by providing corrugations in the surfaces defining the slots.
Patent GB-902078-A (GB)
Title: Improvements in or relating to electronic relays
IPC: H03K17/60
Filed: 1958-08-08
Abstract: 902,078. Transistor switching circuits. PHILIPS ELECTRICAL INDUSTRIES LTD. Aug. 8, 1958 [Aug. 13, 1957], No. 25527/58. Class No. 40 (6). A transistor switching circuit which becomes conductive or non-conductive according as to whether a potential difference or current of a predetermined polarity is applied thereto, comprises a transistor oscillator circuit which generates oscillations when said potential difference or current of said predetermined polarity is applied thereto and a transistor switching circuit to which the output of the oscillator circuit is applied and which becomes conductive according as to whether oscillations are generated or not. In a first embodiment, Fig. 1, a sine-wave oscillator comprises a transistor 1 having an inductor 2 connected in its collector circuit and a series-tuned feed-back circuit comprising an inductor 3 coupled to the inductor 2 and connected between the emitter and base of the transistor 1. The circuit oscillates when a potential which is negative with respect to that applied to the emitter electrode is applied to terminal A. Oscillations induced in winding 18 are rectified by diode 17 to produce a bias voltage for the transistor 11 which as a result becomes conducting. When a relatively positive potential is applied at terminal A diode 8 conducts, thus preventing possible overloading of the transistor 1. The embodiment illustrated in Fig. 2 comprises two multivibrator circuits 1, 1<SP>1</SP> and 21, 21<SP>1</SP> which become respectively operative according as to whether terminal A is positive with respect to terminal B or vice versa. Hence according as to whether terminal A is positive or negative with respect to terminal B transistors 11, 11<SP>1</SP> or transistors 31, 31<SP>1</SP> become alternately conductive so connecting terminal C to the load 12 and the positive supply terminal or to the load 32 and the negative supply terminal.
Patent GB-161899-A (GB)
Title: Improvements in piston rings
IPC: F16J9/14
Filed: 1920-09-06
Abstract: 161,899. Maloney, H. P. Sept. 6, 1920. Piston packing.-A split packing- ring 9, Fig. 2, has overlapping ends 10, 11, each of which is formed with a tongue 12, 13. The tongues are bevelled transversely and enter undercut recesses 14, 15, Fig. 7.
Patent GB-489589-A (GB)
Title: Improvements in or relating to windows
IPC: E06B3/26
Filed: 1937-09-22
Abstract: 489,589. Pivoted double windows. PERSSON, E. S. Sept. 22, 1937, No. 25709. Convention date, June 16. [Class 20 (iii)] Draught and weather excluding beads for reversibly pivoted sashes, such as are described in Specification 484,963, are fixed to the sash and to the frame on the inner side above and below the pivot 3, respectively. The beads 5 are let into rabbeted recesses and provide two abutments 6, 7, contacting with the frame or sash. The ends abut at the pivot when the sash is closed.
Patent GB-698923-A (GB)
Title: Improvements relating to liquid fuel injection in internal combustion engines
IPC: F02M55/02
Filed: 1951-11-05
Abstract: 698,923. Supplying and heating liquid fuel. HARPER, W. A., and REBBECK, Sir F. E. Nov. 5, 1951. No. 25787/51. Class 7 (iii). [Also in Group XXIX]. A retarding device for insertion in the fuel pipe leading to one of a pair of fuel injection valves in each cylinder of a compression ignition engine comprises a plurality of concentric elements with helical, sinuous or zig-zag grooves in the faces thereof interconnected to provide a tortuous fuel passage, In Fig. 1, fuel entering at A' flows in succession through helical grooves B, E and H formed in the outer surface of a central core A and sleeves D, G respectively, the device being connected in the pipe leading to one of the injectors at A' and A'. The members A, D, G may be conical and in a modification the grooves are formed parallel to the axis of the device and interconnected at the ends to form a continuous sinuous passage. In Fig. 2 the device comprises a number of plates M bolted between end plates S, T, having an inlet and outlet connection A<SP>1</SP>, A<SP>2</SP>, each plate having a sinuous groove N formed in one face and connected to the adjacent groove by a passage O. The plates are aligned. by means of a locating pin V. The grooves or passages in the various devices may be duplicated to form a fuel heating device, one passage carrying the fuel and the other a heating medium.
Patent GB-298359-A (GB)
Title: Improvements in or pertaining to the cop peg for loom shuttles
IPC: D03J5/08
Filed: 1927-09-30
Abstract: 298,359. Slinger, T. Sept. 30, 1927. Shuttle-pegs are provided with an oval spring B, the upper part a of the peg part A being concave for the grater portion of its length, and the end a<1> being flat where it is secured by a considerable amount of spelter C or solder to the spring B.
Patent GB-409985-A (GB)
Title: Improvements in or relating to incandescent wire ignition plugs
IPC: F01L7/02
Filed: 1933-09-19
Abstract: 409,985. Incandescent igniters. RUPRECHT, A., 35, Wernerstrasse, Ludwigsburg, Germany. Sept. 19, 1933, No. 25854. Convention date, Sept, 29, 1932. [Class 7 (iv).] Two or more electrically-heated coils are connected in parallel in one plug. Each coil may consist of two or more wires twisted together.
Patent GB-973552-A (GB)
Title: Motor speed control
IPC: H02P7/292
Filed: 1963-06-28
Abstract: 973,552. Control of D.C. motors. GLOBE INDUSTRIES Inc. June 28, 1963 [July 5, 1962], No. 25886/63. Heading H2J. [Also in Division G3] The output of a crystal oscillator time base A is fed into divider network B supplying a signal to AND-gate D which provides one input to AND-gate E. The other input to the gate E is derived from power circuit F which receives " on " pulses from gate E to allow substantially constant power to be applied to motor M when below speed. A re-setting network H receives a signal from the power circuit to reset the network B in the event of overspeed, which prevents " on " pulses being applied to the motor when the speed is excessive. Feedback pulses from pick-up coil 120 are supplied to circuit G for disabling the transmission of " on " pulses to the motor. The network A comprises a multi-vibrator circuit employing transistors 12, 20, associated with crystal 14, a square wave output being produced on line 29 with negative spikes at the negative-going portions of the square wave. The frequency is divided by three in one portion of network B, and by four in another portion, and the gate D will not produce an output until both portions produce an output pulse at the same time. The 3:1 divider comprises capacitor 64 which is charged until the voltage thereacross exceeds the reference set by potentiometer 36, whereupon transistor 34 is rendered conductive, and the capacitor is discharged through transistors 34, 58, which are then turned off so that the capacitor is recharged. Resistor 62 prevents the circuit from free-running, the capacitor 64 not discharging until a synchronizing signal is received through resistor 38. The 4: 1 divider is similarly arranged. When the pulses from both parts of the divider B coincide, diodes 70, 72 are reverse biased to switch on transistor 80, whereby capacitor 86 is charged through transistor 84 and a positive-going signal is applied to the anode of rectifier 88. When control rectifier 102 in series with motor M is off, a gate signal is supplied to rectifier 88. During underspeed conditions, the signal from gate D is stored in capacitor 86 so that the motor is energized immediately after the rectifier 102 is turned off. Pick-up coil 120 senses the speed of the motor and supplies pulses to the gate of rectifier 138 associated with transistor 134 and transformer 130 supplying pulses to transistor 114 for turning off the control rectifier 102. During overspeed conditions, an off pulse generated by network G, when the rectifier 102 is off, causes a pulse to be coupled through capacitor 68 and diode 30 to reduce the regulated voltage on line 33, so discharging capacitors 64, 50. Thus, no " on " pulses are transmitted to the gate of rectifier 102, capacitor 96 maintaining the input to gate E for a sufficient length of time so that the pulse from gate D is not held by capacitor 86 during this operation. Specification 930,401 is referred to.
Patent GB-1081492-A (GB)
Title: Woven diaper
IPC: D03D1/00
Filed: 1965-06-18
Abstract: A single-ply woven fabric for babies' nakpins has thicker weft yarns than usual, whereby the number of ends and picks per inch can be fewer than usual.  The weave is plain, and both sides of the fabric are lightly napped.
Patent GB-1240367-A (GB)
Title: Pellet mill for wet powdery materials
Inventor: MIYAKAWA KOZI
IPC: B30B11/20
Filed: 1969-05-21
Abstract: 1,240,367. Roller - and - ring machines. JAPAN GAS CHEMICAL CO. Inc. 21 May, 1969, No. 26038/69. Heading B5A. In a roller-and-ring machine a roller 4, Fig. 1, mounted by plates 9, 10 on a fixed tube 7 is rotated on rotation of ring 3 by the co-operation of gearing 16, 17, Fig. 2, on the ring and roller respectively. Further, to prevent infiltration of material, pressure fluid is conveyed to the interior of the roller via tube 7, conduit 11 and shaft 12 and is retained at a predetermined pressure by seal rings 14, 15. The pressure fluid may be a lubricant such as grease or air, but is preferably a mixture thereof wherein the lubricant is atomized by an air jet. More than one roller 4 may be employed and the invention particularly relates to the use of wet powdery materials such as compound fertilizers, animal feeds, agricultural chemicals and catalysts.
Patent GB-753808-A (GB)
Title: Improved speed-responsive control device
Inventor: GAUBATZ ARTHUR W
IPC: G05D13/10
Filed: 1954-09-09
Abstract: 753,808. Centrifugal governors. GENERAL MOTORS CORPORATION. Sept. 9, 1954, No. 26136/54. Class 57 A speed-responsive control device comprises a rotatable shaft 20, Fig. 1, mechanism operatively associated therewith to produce an axial movement in accordance with shaft speed, and an abutment, such as 106, for each of a plurality of springs threaded in the shaft housing 16 for rotational and axial movement separately to adjust the resistance of each spring to axial movement of the mechanism. The shaft 20 is secured against axial movement by a shaft 26 and a C-ring 28 and is provided with a flange 30 carrying three pivotable flyweights 34 notched at 50 to fit loosely over the outer race of a bearing 42 which causes axial displacement of a sleeve 40 when the speed of the shaft 20 varies. Radial lugs 44 on the sleeve are stepped to engage spring-loaded rings 96, 98, 100 sequentially. The springs 90, 92, 94 cooperating with the rings are independently adjusted by means of a key 116 having a pinion 114 which is inserted into a bore 112 to engage gear teeeth 111 on the spring abutments 102, 104, 106. After adjustment, the abutments are locked by a long pinion which is inserted into the bore 112 and provided with a slotted end to engage a pin 122. Each abutment is adjusted so that a flange 70 on the sleeve 40 will actuate three single-pole double-throw microswitches 60, 62, 64 in sequence at predetermined speeds, the switches being provided with actuating arms 68 and secured by screws 66 to the housing 10 of the device in axially displaced and adjustable positions: Cover plates 82 provide access to the microswitches while a pair of insulators 74, 76 form an annular distribution chamber for the wiring harness 80. The device may be mounted on an engine or the like by means of a flange 18.
Patent GB-1106428-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: G05D23/12
Filed: 1965-06-21
Abstract: 1,106,428. Valves. DOLE VALVE CO. 21 June, 1965 [22 June, 1964 (2)], No. 26155/65. Heading F2V. A valve comprises a pair of apertured plates 22, 28; a stem 32 adapted to rotate plate 28 in response to changes in pressure in a temperature responsive capsule 16 to control the rate of flow of fluid between inlet 18 and outlet 19; and a manually adjustable device for selectively controlling the position of stem 32 for any given temperature sensed by capsule 16. Stem 32 is moved by a crank 53 having a pin and slot connection with a cage 60 which is urged to the left by spring 74 and to the right by a capsule 14. A pipe 89 interconnects capsules 14, 16 and a further pipe 125 connects capsule 14 with another capsule 114 (Figs. 1 and 3, not shown) the pressure in which is adjustable by a manually operated screw mechanism. In a modification (Figs. 5 and 6, not shown) the capsule 114 is dispensed with and the manual adjustment is effected by the provision of a further manually adjustable spring acting directly on cage 60.
Patent GB-1222606-A (GB)
Title: Process for marking roads
Inventor: VUYST JOHANNES DE
IPC: E01F9/506
Filed: 1968-05-31
Abstract: 1,222,606. Marking road surfaces. J. DE VUYST and P. DE VUYST. 31 May, 1968 [13 July, 1967], No. 26175/68. Heading E1G. Fibre-reinforced plastics road markings are formed by simultaneously spraying both glass or other fibres and polyester marking material. A preliminary sprayed-on bonding layer (e.g. polyester) may be provided. The marking material may have reflective and other additives
Patent GB-606440-A (GB)
Title: Improvements to portable fluid sprinkling apparatus
IPC: B05B9/08
Filed: 1945-10-09
Abstract: 606,440. Crop sprayers. MEISTER, U. Oct. 9, 1945, No. 26286. Convention date, May 13, 1942. [Class 69 (iii)] [Also in Group XXVIII] In an agricultural knapsack sprayer having a handactuated pump delivering a continuous spray, a mixing disc 12 and an inverted cup-shaped churning member 16 are fixed to the piston-rod 9. The pump barrel 5 in which the piston 10 works is secured in the bottom of the liquid container 1 and the pump handle 14 is pivoted in a swivelling fulcrum 4<SP>1</SP> at the top of an air compressing receiver 4 designed to produce a uniform liquid flow from the connector 7. The mixing member is provided with perforations and the cup 16 with peripheral notches to increase the stirring action.
Patent GB-204892-A (GB)
Title: Improvements in dental engines
IPC: A61C1/04
Filed: 1922-09-29
Abstract: 204,892. Cullen, J. Sept. 29, 1922. Dental engines.-A portable dental engine is provided, in addition to the usual pedal drive, with an electric motor mounted on the engine frame. The motor 4 is supported on a bracket 9 secured by a nut 5 to the end of the vertical arm 6 which is mounted as usual in the boss 7 of the engine frame 8. The motor is controlled as usual by a footoperated rheostat. The motor pulley 13 is connected by a driving cord 16 to a pulley 14 on the mandrel 15. The engine head 17 is pivotally mounted in a socket 19 of a support 20 which has a second socket 24 secured by a set-screw 22 to the vertical arm 6. When the pedal drive is in use the head 17 may be transferred to the socket 24 so as to bring the pulley 14 into line with the driving pulley 23, or, alternatively, a second pulley may be secured to the mandrel 15 and a clutch may be provided for disconnecting either pulley as required.
Patent GB-323036-A (GB)
Title: Improvements in or relating to the manufacture of resinous compositions
IPC: C08G8/06
Filed: 1928-09-13
Abstract: 323,036. Wade, H., (Bakelite Corporation). Sept. 13, 1928. Impregnating-compositions for electric insulation.-Condensation products of phenols, including cresols, with furfural are dehydrated by heating in the presence of a non-reactive resin, whereby the tendency of phenol-furfural resins to gelatinize before complete dehydration is avoided and products having good electrically insulating properties, and suitable for use in the manufacture of varnishes and impregnating solutions are obtained. The non-reactive resin may be added before the initial condensation of phenol and furfural, or at any intermediate stage thereof. Suitable condensing agents are sodium hydroxide and carbonate, magnesium and calcium oxides and hydroxides, pyridine, and hexamethylenetetramine. The added resin is preferably one of the phenol-methylene type, which may, however, be wholly or partly replaced by a natural resin such as rosin. The quantity of added resin may be from 10 to 80 per cent of the phenol-furfural resin. The products are reactive resins, which may be hardened .in the usual manner with hexamethylenetetramine or other methylene-containing hardening agent. Varnishes and impregnating solutions suitable for purposes of electrical insulation, such as for impregnating coils, may be prepared from the dehydrated resins by dissolving them in suitable alcoholic or other solvents. Specification 253,519, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1197428-A (GB)
Title: Portal-Type Milling Machine
IPC: B23Q23/00
Filed: 1969-05-23
Abstract: 1,197,428. Automatic position control. SCHIESS A. G. May 23, 1969 [May 31, 1968], No.26354/69. Heading G3R. [Also in Division B3] In a portal type milling machine having a cross rail 1 supported on saddles 3, 4 which are movable in unison along guide beds 5, 6 on either side of a pit 7, there is provided a measuring saddle 18 hingedly connected to one of the saddles, 3 and guided by a precision guide 17 in the guide bed 5, and an arm 26 projecting from the saddle 3 is operatively connected to control means mounted on the measuring saddle 18 so that any deviation of the cross rail 1 from a position exactly at right angles to the guide beds produces a deflection of the arm 26 causing the control means to operate to apply a regulatory control to the feed of the saddle 3 to restore the cross rail to its true position. As shown the arm 26 is connected to a pivoted lever 29 adapted to close contacts 31 which control the operation of a motor 51, Fig. 5, adapted to displace in an axial direction a helical pinion 50 forming part of the drive train to the saddle 3. Axial movement of the pinion 50 superimposes on the main drive to the saddle a corrective rotation of meshing pinion 49.