baber/WOPTO huggingface dataset:
Patent GB-1456808-A (GB)
Title: Manufacture of composite extruded sections
IPC: B22D19/02
Filed: 1975-03-24
Abstract: 1456808 Extrusion; producing conductor rails or girders SWISS ALUMINIUM Ltd 24 March 1975 [23 March 1974] 12101/75 Headings B3P and B3A  A composite extrusion with at least two inserts 48 is made by extruding a matrix metal, e.g. aluminium, through a die and introducing the inserts on each side of the extrusion axis. The inserts may be steel or copper which can be coated, e.g. with zinc, to prevent corrosion. The extruded composite is machined to expose the inserts to provide a conductor rail. Alternatively the composite can be a girder. The extrusion die is formed of an entry plate 1, a mandrel plate 2 and a die plate 3. Holes 9 in the entry plate are used to feed the inserts to passages defined by grooves 13 in the mandrel plate and the entry plate surface. The grooves lead to tubular outlets 18 extending into a chamber (30), Fig. 3 (not shown), in the die plate 3. The die opening 40 is defined by a lining 41 and a mandrel 20 on the mandrel plate.
Patent GB-994681-A (GB)
Title: Improvements in control systems responsive to acoustic signals
IPC: A63J17/00
Filed: 1963-03-27
Abstract: 994,681. Fountains. MOBILCOLOR Inc. March 27, 1963 [April 13, 1962], No. 12139/63. Heading FIX. [Also in Divisions G4, H2 and H3] A system for controlling an electrical device in response to accoustic signals includes unidirectionally conducting means 94, 95 which conducts current only for a selected portion of an a.c. cycle, the duration of conductive portion being determined by the amplitude of the acoustic signal. As described audio input signals from a musical instrument or voice are fed via an input amplifier 14 to three filters (e.g. band pass filter 15) which divide the input signal into low, medium and high frequency components. The medium frequency output from filter 15 is fed via a detector stage 18 having a variable time constant controlled by switch 66 to a pulse generating circuit 19 comprising transistor 72 and unijunction transistor 80. The transistor 80 is supplied with unsmoothed rectifier a.c. between its bases 81, 84 and at a point in the a.c. cycle determined by the amplitude of the audio signal at the base of transistor 72. This becomes conductive to discharge capacitor 76 producing a pulse in transformer 78. The output pulses from the transformer 78 are used to trigger a pair of SCR's to supply power to the loads 99, 100. Load 99 is a coloured lamp, and load 100 is the control motor for a pump producing a water spray. Similar lights and pumps are controlled by the low and high frequency components by means of similar control circuits.
Patent GB-574923-A (GB)
Title: Improvements in hair curlers and the like
IPC: A45D2/28
Filed: 1944-06-27
Abstract: 574,923. Hinges. KEET, G. C. E. June 27, 1944, No. 12189. [Class 65 (ii)] [Also in Group XIV] The hinge pin of a hair curler is formed by coiling one end 15 of the securing wire frame 4 about the other end 16 so as to form a large bearing surface.
Patent GB-118441-A (GB)
Title: Improvements in and relating to the Saddle Supporting Mechanism of Motor Cycles.
Inventor: PARKER LANCELOT STEELE
IPC: B62J1/04
Filed: 1917-08-27
Abstract: 118,441. Parker, L. S. Aug. 27, 1917. Spring devices.- In a flexible saddlesupporting mechanism for motorcycles, the usual rigid saddle tube of the frame is replaced by a stay 2 which is pivoted at its foot to the engine casing or analogous bottombracket position and resiliently connected to, and supported from, a point near the steering-head, a check-rod 12 being provided for limiti n g the rearward swing of the stay. To ensure rigidity, the lower end of the stay is provided with a fork 7 having a considerable lateral spread. The top of the stay is connected by a pair of tension springs 9 to the transverse member 15 bridging the duplex members 19, and by the aid of screws engaging with the member 15 the springs and normal position of the stay can be adjusted. The check-rod is forked at its rear end 13 for connexion to the stay, and, to the extent limited by a nut 18, its front end slides in the member 15, preferably under the control of springs 16, 17. The saddle pin 1 preferably slides within plugs 5, 6 in the stay and carries a collar 4 bearing upon the top of a compression spring 3; a recoil spring may also be used.
Patent GB-1015423-A (GB)
Title: Improved paving breaker steel
Inventor: IVES CYRIL GORDON
IPC: E01C23/12
Filed: 1962-03-30
Abstract: 1,015,423. Drill bits. SIR ROBERT Mc- ALPINE & SONS Ltd. Jan. 18, 1963, No. 12364/ 62. Heading B4C. A paving breaker drill bit comprises a shaft portion 3 of circular crosssection and a head portion in the form of a tapered wedge, the head being longer than the shaft. The drill bit is formed with a hexagonal shank 1 and a thrust collar 2. In a modification, Figs. 3 and 4 (not shown), the head portion is formed as a twostage taper, the taper of the upper portion merging into a more abrupt taper of the lower portion.
Patent GB-1600191-A (GB)
Title: Electrooptical range finders
IPC: F41G1/36
Filed: 1978-03-30
Abstract: To integrate a laser rangefinder (5, 7) operating in the IR range into a binocular telescope operating in the visible spectral range, the rangefinder is largely coaxially inserted into the beam path of a telescope branch, the optical sight and laser receiver (7) axes always being identical independently of the position of the inserted frequency-selective beam combination cubes (9, 11) and the laser transmitter beam being inserted in parallel but slightly off-centre. The target marker (18) is inserted into one telescope branch by means of a triple prism (10) which is provided at the beam combination cube (9) arranged in the telescope branch. <IMAGE>
Patent GB-280251-A (GB)
Title: Improvements in or relating to tennis courts
IPC: E01C13/06
Filed: 1926-05-14
Abstract: 280,251. Shorter, H. H. May 14, 1926. Continuous paving.-An absorbent paving for tennis and like courts consists of a hardcore or clinker foundation, a porous cushioning layer from one to one and a half inches thick and consisting of clinker, ragstone, or slag graded from one inch to half an inch, rolled, and then sprayed with cold emulsified bitumen in the proportion of one half to one gallon per super yard, and a top surface consisting of one or two layers of finer grit such as granite or sand mixed before laying with 10 to 20 per cent of cold emulsified bitumen and a little cement. The top surface may be coloured in the mixing with a pigment such as Reading green. As an example, the top layer may consist of 62 per cent aggregate, 3 per cent cement, 15 per cent colouring, and 20 per cent bitumen emulsion.
Patent GB-1349328-A (GB)
Title: Submergible floating boom assembly
IPC: E02B15/04
Filed: 1972-03-16
Abstract: 1349328 Floating booms BRIDGESTONE TIRE KK 16 March 1972 [20 March 1971] 12441/72 Heading E1H A floating boom comprises a plurality of elongate wall members 6 arranged to float in an upright position by inflatable tubular members 7, 7' and connected via submersible buoys 2 secured to the sea bed by chains 4 and anchors ), 3', each buoy 2 comprising an inflatable bag within a perforated casing, the. bags and members 7, 7' being linked together and to an air valve 11 whereby the system can be pressurised or depressurised to make the boom float or sink. The valve 11 may be mounted on a buoy 9 connected to one end of the boom by a chain 10. The end buoy 2 remote from air valve 11 may be connected pneumatically to a submerged buoy of similar construction, Fig. 4 (not shown), secured to the chain 4, so that when the boom is depressurised, the submerged buoy acts as a weight to sink that end of the boom first. One end of the boom may abut a vessel T or a dock wall, and in order to keep it in contact therewith, one end buoy 2 Fig. 8 has an eye ring 23 through which a cable 26 from the vessel is passed the cable then being attached to a buoy 24 connected via a flexible hose 25 and a control valve 27 to the end buoy 2. After the cable 26 is secured to buoy 24 the valve 27 is moved to vent the buoy 24 which sinks drawing the cable 26 into a vertical position and thus maintaining the end buoy 2 in close proximity to the vessel T, an insert 6a if necessary closing any remaining gap. The boom may be arranged in a closed loop the two halves of which are independently submersible. In this case the two ends of the boom are connected by a strap 6a, and the members 7 are terminated by end members 7a, 7b connected via suitable valving to a pressure source S, so that boom portions 1a or 1b may be controlled independently. A tension member 28 holds the boom in place. At the mid-point of the boom diametrically opposite the strap 6a, a weight (32) Fig. 12 (not shown) is connected to the boom by inflatable tubes (33) which communicate with members 7, the weight (32) and tubes (33) acting as variable ballasting means. In another embodiment of boom, Fig. 13 (not shown) the buoys 2 are replaced by tubular members (2a) extending along the boom, connected to, and of a greater diameter than, the members 7, the free end of the boom being weighted by a weight (32) and tubes (33) as described above.
Patent GB-463515-A (GB)
Title: Improvements in the manufacture of stabilised diazo compounds
IPC: D06P3/68
Filed: 1936-05-02
Abstract: Stable diazo compounds; azo dyes, forming upon the material; printing.--Stabilized diazo compounds are manufactured by condensing a trialkylolamine with the diazonium salt of an arylamine base.  The products are useful for the production of insoluble azo dyestuffs on the fibre by the process described in Specification 457,763.  In an example, dianisidine is tetrazotized and condensed with triethanolamine in the presence of soda ash.
Patent GB-875092-A (GB)
Title: Closing means for subterranean localities
IPC: E04H9/12
Filed: 1960-04-08
Abstract: 875,092. Bomb-shelter covers. ENTERPRISES CAMPENON BERNARD. April 8, 1960 [April 10, 1959], No. 12517/60. Class 123(1) [Also in Groups XXV and XXXIV] Means for sealing the bend formed by the junction of two branch access galleries 1, 2 leading to a subterranean bomb shelter comprises a movable solid reinforced concrete block 4 which is mounted by laterally displaceable, resilient blocks, 19, Fig. 11, on two longtitudinally prestressed concrete beams 17 which bear, through elastic blocks 16, on plates 15 slidingly supported, through the intermediary of balls 9 with roller cages 12, 13, 14, on plates 8 bolted at 10 to two inclined planes 5, the latter extending from side trenches 6, Fig. 1, in the gallery junction into a cul-de-sac continuation of the gallery 2. The block 4, hollowed out on its under face to allow for the passage of a merlon 7 between the trenches 6, is retractable by a hydraulic jack 29, acting through a sprocket chain 21 and a carriage 26 rollable, on a ramp 27 parallel to the inclined planes 5, from the sealing position into the extension 3 the trenches 6, at the same time, being filled by bridging platforms 33, Fig. 9a, which are coupled by rods 42 to the block 4 and are withdrawn from cavity extensions 41 of the trenches 6. Each platform 33, housed in a cavity 41 when the block 4 is in a closing position, is supported by carriages 36 which roll upon tracks 39 extending into the inclined planes 5 the upper surface of the platform being brought level with the ground of the galleries 1, 2 and the interruption between the ceiling of the cavity 41, and the corresponding end of the platform being closed by an oscillatable platform 45, when the block is hauled into its retracted position. The block 4 is sealed in its closed position by means of heavy vertical and horizontal metal plates 62, 63, Figs. 14, 15, which can be projected by means of .hydraulic cylinders 68 from a nested position within a rectangular frame 60 housed in a recess 58, Fig. 4, located at the periphery of the gallery 1 to bear against the corresponding surface of the block 4. The opposite face 4a, Fig. 4a of the block and the corresponding gallery wall are lined with co-operating deformable elastic sheets 55 having metal backing plates 54. The plates 62, 63, located by brackets 65, carry a continuous sealing packing 64 also extending through grooves in the outer faces of rubber cylinders 71 which are movable within cylinders 70, Fig. 18, at the corners of the frame and loosely receive the ends of the plates 62, 63. Access to the extension 3 from the gallery 2 when the block 4 is in the closed position may be obtained through side shafts such as 78, which communicate with galleries such as 77 and also give access to the cavity 41.
Patent GB-1391481-A (GB)
Title: Voltage detectors
IPC: G01R19/155
Filed: 1972-03-17
Abstract: 1391481 Detecting voltages E SINGER 17 March 1972 [22 March 1971 19 Jan 1972] 12572/72 Heading G1U A voltage detector comprises a rare gas tube 9 producing a discharge the length of which depends on the voltage being detected, a light detector 10, and a movable screen 19 having a tubular aperture 20 and disposed between the tube 9 and detector 10, the position of the aperture determining the minimum length of discharge necessary for light to reach the detector and thus determining the voltage threshold of the detector. The voltage to be detected is applied across a potential divider chain formed by a spark gap 22, neon tube 9 and the capacitance between the detector and earth. The detector 10 is a photoresistor arranged to light a lamp depending on whether the voltage is above or below the  threshold. The detector circuitry is enclosed in an elongated tube, Fig. 1 (not shown) with a voltage probe at one end. A switch on the tube enables a further lamp adjacent the detector to be illuminated so that the functioning of the detector can be checked.
Patent GB-732937-A (GB)
Title: Jet deflectors for aircraft
Inventor: DIMMOCK NORMAN ALBERT
IPC: B64C29/00
Filed: 1953-05-06
Abstract: 732,937. Jet propulsion nozzles. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. April 26, 1954 [May 6, 1953], No. 12659/53. Class 110 (3). [Also in Group XXXIII] A jet deflecting nozzle for the jet pipe of a jet propulsion engine comprises upper and lower nozzle walls defining the top and bottom of a rectangular or trapezoidal nozzle, one of which is hinged to the rear end of the corresponding wall of the jet pipe and the other of which is hinged to a slider movable forwardly or rearwardly along the opposite wall of the jet pipe, together with a connection linking the two nozzle walls so that they make corresponding angular movements. A jet pipe 3, 4 has a propelling nozzle comprising a wall 7 hinged to the jet pipe wall 4 at 9 and a wall 6 hinged at 8 to a slider 5 movable longitudinally along the wall 3. A link 10 rigid with wall 7 is hinged to wall 6 at 11. The nozzle is actuated by fluid operated means 12 connected to a bracket 15 attached to the slider 5. A pair of side plates 2 cover the ends of the walls 6, 7. In a modification, Fig. 5, a convergent box-like nozzle 20 is pivoted to the jet pipe wall 4 at 19 and to a swinging link 21 at 18, the link being pivoted to the slider 5 at 22.
Patent GB-403952-A (GB)
Title: Improvements in and relating to reflecting signs for roads and streets
IPC: G02B5/126
Filed: 1932-05-03
Abstract: 403,952. Signs. WOOD, A., 16, Haslemere Avenue, West Ealing, London. May 3, 1932, No. 12715. [Class 3 (ii).] A reflector sign is provided with a lightcondensing plate of clear glass or other transparent material one face of which is formed with a plurality of small convex lenses having their foci at the plane face of the plate, and a dispersively reflecting surface at said plane face. As shown in Fig. 1, the sign comprises a light-condensing plate 3 and a bill poster 1 adjacent the back 2 of a frame, the poster serving as the dispersive reflector. In a modification, Fig. 2, the display matter in the form of a stencil 4 is held against the plate 3 by a glass plate 5, the face 3a of the plate 3 being provided with a white matt surface, e.g. of plaster of paris. Alternatively, the back of the frame may be painted white matt or a sheet of white paper may be held in the frame with the plane face of the plate 3 in contact therewith.
Patent GB-641127-A (GB)
Title: Improvements in barographs
Inventor: BIBBY JOHN RALPH
IPC: G01L7/00
Filed: 1948-05-10
Abstract: 641,127. Pressure gauges; recording-apparatus. MINISTER OF SUPPLY. May 10, 1948, No. 12841. [Classes 106 (ii) and 106 (iv)] Aneroid bellows 1 intended for use in a barograph are damped against rapid fluctuations of pressure, likely to cause broadening of the trace, by immersion in a liquid. The top of the bellows is secured to the lower end of a vertical rod 2, the upper end of which is pivotally connected to a lever 3 which operates the recording pen of the barograph in the usual way. The aneroid bellows is enclosed in a metal cylinder 4 and secured to the bottom. The top of the cylinder is closed by a removable cover-plate 5 through which the rod 2 passes with clearance. The opening is restricted by an additional plate 6 having a downward extension 6<SP>1</SP> surrounding but slightly spaced from the rod 2. This arrangement gives an increased area over a simple aperture in the top of the vessel. A liquid reservoir is formed at the top of the vessel covered by a plate 7 into which excess liquid from the vessel 1 may flow through the aperture 6<SP>1</SP>. The liquid is preferably one which has little change of viscosity with changes of temperature such. as a mixture of two types of silicone. In use the transporting plug 8 is unscrewed into the raised position shown. If the bellows 1 contracts or expands slowly as a result of normal pressure change the liquid passes easily through the opening 6<SP>1</SP>, whereas sudden changes of pressure, due, for example, to gusty winds, causing a tendency to rapid movements, are checked by the viscosity of the liquid and the narrow opening 6<SP>1</SP>. If the barograph is to be moved the plug 8 is screwed down to close. the reservoir to prevent spilling of the liquid damping medium.
Patent GB-529171-A (GB)
Title: Improvements in and relating to temperature regulators
IPC: G05D23/275
Filed: 1939-04-29
Abstract: 529,171. Temperature regulating apparatus. SATCHWELL, L. April 29, 1939, No. 12901. Addition to 525,821. Drawings to Specification. [Class 40 (i)] [Also in Group XXXV] In temperature regulating apparatus for heating plant as described in the parent Specification, when alternating current supply is utilized the auxiliary heating coil of the boiler thermostat is supplied with alternating current through a choke or transformer the impedance or transformation ratio of which is varied by the external thermostat in response to variation in weather conditions.
Patent GB-1070609-A (GB)
Title: Methods and apparatus for laying elongate flexible means on a submerged surface
IPC: B63B35/03
Filed: 1966-09-24
Abstract: 1,070,609. Laying pipelines. BROWN & ROOT Inc. March 24, 1966 [May 21, 19651, No. 13033/66. Heading F2P. For laying offshore pipelines in particular, a floating vessel, 5, manoeuvred by anchored lines 11, carries roller assemblies 7, 8 and 8a for slidably supporting the pipeline 1, the assemblies 8 and 8a and, if desired; the assemblies 7 being pivotable and vertically adjustable, and a tensioning mechanism 10 comprising, on a fixed frame (1006), Figs. 15 and 17 (not shown), a plurality of spaced-apart, dual, air inflated rubber tyre assemblies (1007) and a similar plurality of tyre assemblies (1002) mounted on a frame (1001) movable vertically with respect to the frame 1001 by hydraulic piston-cylinder devices (1011), (1012) and so that variable tensioning forces can be applied to opposite sides of the pipeline; the tyre assemblies (1002) and (1007) are interconnected and rotated by hydraulic motors (1022) and (1025). Attached to the vessel for pivotal movement about a vertical and horizontal axis is an inclined ramp 6 comprising laterally spaced pontoons (601), (602), Fig. 2 (not shown), divided longitudinally into chambers provided with valves connected by air lines to controls on the vessel and interconnected by conduits (612) carrying rollers for slidably supporting the pipeline and valves also connected by air lines to controls on the vessel. The buoyancy of the ramp is varied by selectively and independently admitting air into the chambers or causing the expulsion of water ballast therefrom; the lower end of the ramp has additional pontoons (613), (614) attached thereto, and the upper end of the ramp is adjustable vertically with respect to the roller assembly 8a, the connecting mechanism 9 including hook latches which are operated by hydraulic piston-cylinder means to engage the ramp pivot shaft.
Patent GB-558282-A (GB)
Title: Buttons
IPC: A44B1/30
Filed: 1942-09-16
Abstract: 558,282. Buttons. INGRAM, T. A. Sept. 16, 1942, No. 13038. [Class 43] A two-part button comprises a screw 4 with a slotted or knurled head adapted to engage a threaded socket 6 in a cup-shaped member 5 of thin metal having flared edges to which the button &c. face 8 is secured by bending the edges of the button face over these flared edges, or by a separate edge-retaining ring.
Patent GB-625214-A (GB)
Title: Improvements in or relating to cathode ray tubes and the like and to methods of manufacturing such tubes
IPC: H01J29/86
Filed: 1947-05-15
Abstract: 625,214. Welding glass. CINEMATELEVISION, Ltd., and LANCE, T. M. C. May 15, 1947, No. 13108. [Class 56] [Also in Group XL(a)]  In order that the stress across the joint between a curved glass shell and another part of an envelope &c. (e.g. between the screen and body of a cathode ray tube) may be perpendicular to the junction surfaces when the envelope is evacuated, the peripheral surface of the shell is ground &c. to conical form, of apex at the common or mean centre of curvature of the shell faces, and a matching surface is formed on the main body wall at its end, this end being of simple geometrical form and uniform thickness. As shown, the peripheral surface 4 of the glass screen 1 is radial to the centre of curvature A of the concentric screen faces; the end surface 6 of the main body of the envelope is ground parallel to the surface 4, and may project at 8. The seal may be formed by an enamel melting between 350‹ and 600‹C.
Patent GB-1021555-A (GB)
Title: An axle lift for one of two axles in tandem
Inventor: RICHNOW ERICK G
IPC: B62D61/12
Filed: 1963-04-03
Abstract: 1,021,555. Tandem axle suspensions. TRUCK ACCESSORIES Inc. April 3, 1963, No. 13132/63. Heading B7D. In a tandem axle suspension comprising common pivotal supports 15 for equalizing the load on leaf springs 11, 12 mounted on axles 7, 8, the axle 7 may be raised to lift the wheels 5 thereon clear of the ground by inflating a pneumatic bellows 21 linked by a lever 19 and a chain 20 to the mid-point of the axle. A switch 25 energizes a solenoid valve 22 to effect inflation of the bellows 21.
Patent GB-771404-A (GB)
Title: Oil bath solenoid
IPC: H02K33/04
Filed: 1955-05-06
Abstract: 771,404. Electromagnets. DETROIT COIL CO. May 6, 1955 [Jan. 3, 1955], No. 13163/55. Class 35. [Also in Group XXXVI] A plunger type oil immersed electromagnet has the rod for actuating the driven device extending from the housing coaxially with the plunger and encircled by a seal to prevent escape of oil along the rod. In Fig. 2, the casing 30 is sealed by a ring 36 and the diaphragm 40, the centre of which is held in a member 68 abutted by pins 66, 70 which transmit downward force to the driven device 16 when the coil is energized and return the plunger 52 upwards by a spring in the driven device when the coil is de-energized, the oil in the casing 30 having a cushioning as well as a cooling effect. In a modification, sealing rings surround the members linking the plunger to the driven device and the diaphragm is omitted.