baber/WOPTO huggingface dataset:
Patent GB-1174117-A (GB)
Title: Method for Flattening Thermoplastic Web
Inventor: ENG ARTHUR ART
IPC: B29C48/10
Filed: 1967-01-23
Abstract: 1,174,117. Forming flat wrinkle-free webs. UNION CARBIDE CORP. 23 Jan., 1967, No. 3341/67. Heading B5B. Flat wrinkle-free webs are formed from extruded unoriented or oriented thermoplastic tube by longitudinally slitting the tube, while in inflated form, into a plurality of webs, separately passing each of the webs under tension and out of contact with each other around alternate sides of a series of adjacent rolls separated from each other by a distance greater than the thickness of the web passing therearound and concurrently heating each of the webs as it passes around the rolls to a temperature in a range extending from the heat distortion temperature of the material at 66 p.s.i. to 60 C. thereabove. Specified web materials include polymethacrylate, polyolefins, polystyrene polyethers and polysulphones. The web may be oriented before passage on alternate sides of the axes of the adjacent rolls, longitudinally stretched as it passes around the rollers. A plurality of webs may be passed separately on alternate sides of the axes of adjacent rolls to flatten the webs. The tube may be bisoriented before being slit, either passing directly from extrusion to biorientation or from extrusion over a mandrel of larger periphery than of the tube while being cooled to a self-sustaining condition before being. slit.
Patent GB-106105-A (GB)
Title: Improvements in Apparatus for Removing Leaves, Twigs and like Refuse from Lawns, Garden Paths and similar Places.
Inventor: NUTTER SAM
IPC: A01G1/12
Filed: 1916-09-07
Abstract: 106,105. Nutter, S. Sept. 7, 1916. Sweeping-machines ; taking up refuse for removal. - Relates to machines for removing leaves, twigs, and like refuse from lawns, garden paths, and similar places, and consists of a brush 11 adjustably mounted at the forward extremity of a frame 2 carried on wheels 3, 4, the supporting wheels of the machine being brought within the frame. The bearings for the shaft 5 of the wheels 3 are adjustable lonngitudinally of the frame 2 so that the chain 7, by which rotary motion is transmitted to the brush from a sprocket wheel on the shaft 5, may be maintained taut. A guiding plate 14 pivoted to the frame directs the leaves and rubbish into a receptacle 13 detachably mounted on the frame. A free-wheel clutch ensures the brush being rotated in one direction only. The machine may be pushed by handles secured to the frame or may be drawn by horse or other power.
Patent GB-947005-A (GB)
Title: Damper regulator for controlling fluid flow
IPC: F16K35/02
Filed: 1962-01-30
Abstract: 947,005. Valves. C. B. REECE, T. R. KING, and C. V. SCHLINGMAN, [trading as R.I.N.C.O.]. Jan. 30, 1962 [Jan. 30, 1961], No. 3407/62. Heading F2V. A damper having a butterfly closure 38, Fig. 2, is housed in a fluid duct 36 by a cylindrical member 14 embodying an external collar 16 and an inner cylindrical part 19 with a raised portion 20 forming a circular recess 22 defined by walls 24, 26. The damper is secured to the duct by screws 30, and a layer of insulation 34 is interposed between the collar 16 and the duct with a weatherproof skin 36 glued to the under side of the collar 16. The closure 38 is mounted on a rectangular rod 40 terminating in a hollow shaft 42 incorporating a locking element 46, with a pair of opposed fingers 48, housed in the recess 22; the shaft 42, which extends through the wall 24 to the space within the member 14, is provided with an operating handle 50. A spring 52 encircles the shaft, and urges the latter to a position where the element 46 abuts the wall 24. The rod 40 passes through a hole 54 in the element 46 into the interior of the shaft 42, the latter being capable of axial movement relative to the rod 40. The shaft 4 instead of the element 46 may be in sliding contact with the rod 40. Upon moving the handle 50 inwardly to compress the spring 52 the fingers 48 of element 46 are disengaged from raised projections which encircle the wall 24 whereupon the closure may be rotated to a new position; when the handle is released the fingers will engage with different projections to again lock the closure. In another form, the projections extend 180 degrees around the wall 24 and the locking element is radial with one arm and one finger only. In another form, for non-insulated ducts, the closure is supported by a body 58, Fig. 7, with an external recess 60. A rectangular shaft 62 is secured to locking element 64 held against the bottom of the recess 60 by a flat spring 66, the central part of which engages the inner face of a handle 68. U.S.A. Specification 2,966,169 is referred to.
Patent GB-663277-A (GB)
Title: Improvements in remote angular position control systems
IPC: G05D3/12
Filed: 1949-02-08
Abstract: 663,277. Electric correspondence control. BRITISH THOMSON-HOUSTON CO. Ltd., and LUDBROOK, L.C. Feb. 7, 1950. [Feb. 8, 1949] No. 3437/49. Class 40 (i). In a remote positional selsyn control system employing energised, stationary 3-phase windings, the difference voltage of the two 1-phase windings is applied to a rectifier bridge biassed across the other diagonal with an A.C. voltage in phase quadrature with the voltage in the receiver 1-phase winding, so that the output of the bridge is a D.C. control voltage whose polarity and magnitude are determined by the sense and phase of the 1-phase difference voltage. As shown (Fig. 1) the 1-phase windings (i, 7 of the transmitter 1 and receiver 2 are joined in opposition to the corners c, d of the rectifier bridge 10, the other corners a, b of the bridge being fed from a winding 12 in phase quadrature with receiver winding 7. The desired D.C. control voltage therefore appears across terminals 15, 16, and is used to energise the control winding 17 of amplidyne generator 13, which in turn controls a motor 11 driving the receiver rotor winding 7 into positional correspondence. Anti-hunting is introduced by the provision of negative feedback winding 18 on the amplidyne generator 13, and the bridge circuit comprising the armature of motor 11, interpole winding 19 and potentiometer 20. Incorrect operation of the system may be detected by a relay winding 22 across terminals 15, 16, or a relay winding 24 in series with the biassing circuit of the rectifier bridge 10, which may act differentially with a second winding 25. To check for failure of supply circuits or a break in a 1-phase winding, the rectified outputs of the 1-phase windings 6, 7, 12 may be compared in differential relays with the rectified mean voltage of the 3-phase supply. The latter may also energise a low-voltage relay winding 32. Specifications 527,768 and 581,135 are referred to.
Patent GB-1101062-A (GB)
Title: Apparatus and method for separating particles from a flow of fluid
IPC: B01D45/16
Filed: 1965-01-26
Abstract: 1,101,062. Separating dust or liquid particles from gases; flash evaporators. GIANNOTTI ASSOCIATES. 26 Jan., 1965 [29 Jan., 1964], No. 3439/65. Headings B1B and BIT. Particles of greater density are separated from their carrier fluid by passage through a nozzle which first converges to accelerate, then diverges to decelerate the fluid, whereby the particles are concentrated in one part of the stream and are withdrawn separately from the diverging part of the nozzle. The nozzle may be divided upstream of the particle outlet by baffles of cruciform shape (Figs. 1 .. 3, not shown). In Fig. 4 a succession of nested nozzles is used, the narrowest portion of each corresponding in diameter to the entry lip of the next. The nozzles are supported by baffles at the outlet end. In Fig. 9 (not shown), the stream carrying the bulk of the particles is passed through an annular filter, surrounding the nozzles and returned to the inlet end, the flow through the filter being maintained by the induction effect of the main flow at the inlet. When used to clean an I.C. engine intake the main flow may be created by motion of the vehicle forwards, or by pressure or suction applied to the inlet or outlet sides. In Figs. 5, 6 (not shown), some of an array of separators mounted in a common plate (44) are covered by a roller blind 47, which is moved by an actuator (53), to cover the inlets of some separators and thereby maintain a constant velocity of flow through the others, in response to variations of pressure measured in a separator not covered by the blind. The arrangement may be used to remove dust or freezable or condensable constituents, such as water, from a gas stream, the constituent freezing or condensing as the gas is cooled by passing through the nozzle entrance, and the denser solid or liquid particles concentrating in the central stream as with the dust particles. In separating fresh water from salt water, the brine is heated and passed through a nozzle and boils at the point where the pressure is lowest, steam bubbles moving outwards and brine inwards. The residual brine flows into a horizontal tube passing through a diffuser (Fig. 1); and the steam is condensed to fresh water in the diffuser. Several units can be staged for progressive evaporation. Figs. 12, 13 (not shown) illustrate a rectangular-sectioned array of nozzles using the same principle as the cylindrical arrangement. The arrangement behaves as a Venturi tube, the pressure at the narrowest point being less than that at both the inlet and outlet ends.
Patent GB-354290-A (GB)
Title: Improvements in methods of and means for the installation of underground electric cables
IPC: H02G9/06
Filed: 1930-02-01
Abstract: 354,290. Conduits. LIGNES T•L•- GRAPHIQUES ET T•L•PHONIQUES, 26, Rue de la PÚpiniÞre, Paris. Feb. 1, 1930, No. 3517. Convention date, May 1, 1929. Void [Published under Sect. 91 of the Acts]. Addition to 354,287. [Class 36.] In a method of laying cables in multiduct conduits, the cables are installed in separate ducts and are carried by small insulating supports in the manner described in the parent Specification. As shown in Fig. 2, a concrete conduit 1 is formed with two ducts adapted to receive cables 4. In order to close each duct hermetically after the cable has been laid, a filling compound 6 is introduced and a cover-plate 5 placed in position, as shown. The conduit is closed by a concrete cover 2. In order to permit the superposition of metallic conduits as shown in Fig. 3, the cover 7 of the lower conduit and the bottom 8 of the upper conduit are correspondingly shaped. The filling compound 6 may be omitted from some of the ducts.
Patent GB-236126-A (GB)
Title: Preventing the opening of railway carriage doors when the train is in motion
IPC: E05B65/38
Filed: 1925-02-09
Abstract: 236,126. Wren, A. Feb. 9, 1925. Railway-carriage doors, fastening automatically. - A pneumatically-operated bolt for locking railway carriage doors when the train is in motion of the kind in which the end 12 of a piston rod 11 acts as the nose of the bolt, is housed in a casing 1 divided into two chambers 2, 7 by a diaphragm 3 which acts as a guide for the piston. The. retractiÀig spring 8 in the chamber 7 bears against a collar 4 on the piston and the collar abuts 'against the diaphragm 3 in the retracted position of the bolt. The piston head 10 is moved in the chamber 2 by pressure from a service pipe 6 leading to the main pipe of the pressure generating device controlled by the brakes or by the motion of the train.
Patent GB-497894-A (GB)
Title: Improvements in or relating to embroidery machines and the like
IPC: D05B39/00
Filed: 1938-02-04
Abstract: 497,894. Sewing-machines. TILLETT, F. G. Feb. 4, 1938, No. 3636. [Class 112] In a machine of the kind in which the work is clamped on a frame movable relative to the needle for the sewing of a design, such as is described in Specification 354,320, the clamp is controlled by a fluid-pressure device, preferably mounted on the frame and operated by compressed air. In the form shown, the clamp is carried by a divided arm D pivoted to the movable frame C and pressed to the engaging position by springs D' ; the clamp member enters a recess in the work-plate to stretch the material. The tail of the arm D is depressed, to release the clamp, by the piston of a compressed air cylinder E mounted on the frame C. The machine is also provided with means for stopping the machine with the needle clear of the work, comprising a cylinder F containing a piston connected as shown to the flywheel of the machine ; this piston normally works freely in the cylinder, but is checked and moved to its uppermost position when compressed air is supplied to the cylinder. The machine is driven by a motor through a spring-engaged clutch N, and the control rod for the clutch is also connected to a lever G actuating a thread-tension device, so that the thread is slackened when the clutch is disengaged. The engagement of the clutch is controlled by a cylinder P under control of a valve R operated by a lover S which also operates a valve K controlling the cylinder F. In the stopping position, air is supplied under pressure to the cylinder F and exhausted from the cylinder P, so that the clutch is disengaged by its spring; in the running position the clutch is held engaged by pressure in the cylinder P. The clamp cylinder E is controlled by a separate foot valve E<1> with a restricted exhaust passage. Instead of being connected to the clutch control mechanism, the tension release lever G may be actuated from the tail of the clamp lever D. Liquid under pressure may be used in place of compressed air, the cylinders E, F, P then being exhausted to a reservoir. The frame C has a groove or slot C<1> for guiding a tape to be worked upon. A lamp socket A is provided beneath the upper part of the machine body. Specifications 422,483 and 497,893 also are referred to.
Patent GB-785862-A (GB)
Title: Improvements in and relating to heat exchange systems
Inventor: BELL ALAN
IPC: F28F9/02
Filed: 1955-02-08
Abstract: 785,862. Heat exchangers; steam superheaters. FOSTER WHEELER, Ltd. Jan. 3, 1956 [Feb. 8, 1955], No. 3714/55. Classes 64(3) and 123(3) In a heat exchanger of the "shell and tube" type for exchanging heat between a liquid such as molten sodium or radioactive water and a second fluid such as steam or non-active water, the ends of the tubes 14 are mounted in double tube plates providing therebetween a space to which a gas or vapour inert to either of the heat exchanging fluids is supplied under a pressure substantially equal to that of the liquid or one of the liquids. Preferably the aforesaid liquid is maintained under pressure by an inert gas such as nitrogen supplied from an expansion tank from which the gas is directed to the space between the tube plates. In the form shown, spaces 16, 16<1> are provided by the double tube plates at each end of the shell the inert gas being supplied through pipe connections 18, 18<1>. Further pipes 20, 20<1> connect the spaces 16, 16<1> to means for detecting leakage of either heat exchanging fluid into either gas space. Specification 772,765 is referred to.
Patent GB-472022-A (GB)
Title: Improvements in tempering glass
IPC: C03B27/04
Filed: 1937-02-08
Abstract: 472,022. Tempering glass. QUENTIN, A. Feb. 8, 1937, No. 3717. [Class 56] [Also in Group XII] The air jets used for tempering glass are supplied with air saturated with water vapour by passage over a large water surface. As shown the air is drawn through a conduit a fitted with perforated pipes d from which water descends as curtains.
Patent GB-720689-A (GB)
Title: Improvements in or relating to phase comparators
IPC: G01R25/00
Filed: 1953-02-10
Abstract: 720,689. Phase comparators. WILSKA, Y. Feb. 10, 1953, No. 3735/53. Class 37. A circuit for comparing the phases of two alternating currents introduced at 1, 11; 2, 21 comprises abridge 3, 4, 5, 6 whose opposite arms RR, XX comprise impedances whose vectors have equal phase whilst adjacent arms RX have vectors 90 degrees out-of-phase, the inputs 1, 2 being connected across one diagonal and the outputs from the other diagonal being connected respectively to amplifiers VA, HA feeding respectively horizontal and vertical deflection plates of a cathode-ray tube. If the absolute impedances of all the arms are equal and of value R which is very much greater than the impedances Zo across the signal input terminals and very much less than the input im. pedance Zi to the amplifiers VA, HA, then the individual inputs produce oppositely rotating circular traces on the tube and therefore when combined produce a rectilinear trace whose orientation depends on the phase difference between the inputs. The phase difference may thus be read off on a circular scale placed on-or against the screen. The impedances R and X may conveniently be a resistance and a condenser. If the frequencies are too high for the impedances of R and X to be reliably wholly resistive and reactive respectively, they may first be fed to frequency changers having the same or synchronized local oscillators which reduce the frequency to a more convenient level whilst keeping the phase difference unaltered. The cathode-ray tube may be provided with a recorder operated by a control knob which also controls the rotation in front of the screen of a transparent sheet marked with parallel lines which are kept parallel to the trace by movement of the control knob. The arrangement may also be used to indicate the degree of frequency synchronism since the trace will rotate with an angular velocity (in revolutions/ second) of half the frequency difference.
Patent GB-594636-A (GB)
Title: Improvements in or relating to cartridge feeding mechanism
IPC: F41A9/34
Filed: 1942-03-20
Abstract: 594,636. Machine guns. COLT'S PATENT FIRE ARMS MANUFACTURING CO. March 20, 1942, No. 3742. Convention date, Feb. 25, 1941. [Class 92 (ii)] Cartridge feed mechanism, particularly for heavy long-recoil Browning automatic guns as described in Specifications 235,592, [Class 92 (ii)], and 573,751, comprises an endless belt composed of pivoted links 21 with spring clips 22 for holding a large number of separate cartridges C, the belt being propelled by the action of the gun round a transverse guide or magazine 31 extending from one side of the gun feed-box FB upwardly in a loop which leads downwardly into the other side of the feed-box. The transverse guide 31 for the belt is flanked by plates A, B which have flanges 13, 14 forming grooves for guiding the bullet ends and bases of the cartridges respectively. The magazine is attached to the feed-box by readily releasable fastenings 41. The belt is propelled by pawl devices engaging recesses 19 in the links as described in Specification 573,751. Specification 573,765 also is referred to.
Patent GB-303669-A (GB)
Title: Improved manufacture of activated carbon
IPC: C01B32/384
Filed: 1928-02-07
Abstract: 303,669. Defris, R., and Wõlder, R. Feb. 7, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 4, 1928]. Carbon.-Briquettes, manufactured by compressing carbonaceous material with a suitable binder, and subsequently effecting carbonization and activation, are made in such a way that during carbonization or activation there is formel in the material a system of macro-capillaries which the material in the manner of veins. The macro-capillaries afford a ready admission of the gases to the interior of the mass so that activation becomes perfectly homogeneous. This heterogeneous capillary structure of the briquetting mass may be produced by a mechanical process such as pulling and drawing to thin filaments, which are subsequently woven together. It may also be produced by mixing the raw briquetting material, which may be a mixture of charcoal and tar or pitch, with animal hairs or other natural or artificial fibrous materials, e.g. cotton, silk, artificial silk, or other organic substances. On carbonizing, these fibrous materials leave hollow spaces throughout the mass, and the activation, is then more rapid and efficient. By means of this process raw materials may now be used, such as waste coal, which hitherto could not be used for the manufacture of highly activated carbon.
Patent GB-375730-A (GB)
Title: Improvements in or relating to roller-and-ring mills
IPC: B02C23/00
Filed: 1932-02-09
Abstract: 375,730. Roller - and - - ring mills. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Combustione Economica e Impianti Elettrici Soc. Anon.; 12, Via Cesarea, Genoa, Italy.) Feb. 9, 1932, No. 3820. [Class 59.] A roller-and-ring mill is fed by a throwing scoop g, pivoted to the mill casing at h, open both ends and curved like a siphon. The grinding ring a with rollers b. is mounted in a casing c on which is mounted a suction fan t. The scoop g is provided with an extension k which is forced into contact with a cam z by a spring y. Ground material from the mill and fresh material from a hopper f fills the scoop g and the material contained in the recess m is thrown up into the wind stream in the passage p when the projection k slips off the highest part of the cam. Air enters above the passage p at r and deposits the coarse material into a recess u for return to the mill and a further separation occurs in a chamber s, the separated material also passing back to the mill. Heavy material falls into a recess n in the casing and is withdrawn through a door o.
Patent GB-1351073-A (GB)
Title: Wrapping materials
IPC: B32B7/03
Filed: 1972-01-27
Abstract: 1351073 Laminates SOC D'ETUDES & D' EXPLOITATIONS TECHNIQUE 27 Jan 1972 [26 Feb 1971] 3880/72 Heading B5N A composite packaging material comprises from front (eventual exterior surface of the packaging material) to back (eventual interior surface of the packaging material) a metallic film having an outwardly-directed reflecting surface, a layer of bonding agent, e.g. low density polyethylene, a first layer of uniaxially oriented high density polyethylene and a second layer of uniaxially oriented high density polyethylene, the orientation of which is transverse of that of the first layer. The metallic film may comprise a metallized film of transparent polyethylene glycol terephthalate, the transparent polyethylene glycol terephthalate constituting the exterior layer of the composite material. A layer of material acting as an adhesive under the influence of heat, ultrasonics or crimping, e.g. low density polyethylene, may also be applied to the second layer of high density uniaxially oriented polyethylene.
Patent GB-901194-A (GB)
Title: Improvements in or relating to aircraft propulsion systems
Inventor: MADELUNG GERO
IPC: B64C29/00
Filed: 1961-02-02
Abstract: 901,194. Aircraft. MESSERSCHMITT A.G. Feb. 2, 1961, No. 3919/61. Class 4. An aircraft having a jet propulsion system of the type wherein a jet thrust is directed rearwardly of the aircraft for normal flight and which is adapted for deflection of at least some of the thrust in a downward direction is characterised in that the deflector thrust is applied to a motor to drive such motor, the latter being adapted to drive, in turn, a lift fan, said lift fan being disposed on the opposite side of the centre of gravity of the aircraft to the motor. Two jet propulsion engines S mounted in the rear end of an aircraft fuselage are each provided with a jet deflector U connected to a downwardly directed nozzle D 1  housing a turbine T connected by gearing and shafting W to a fan V. The fan V is mounted on a substantially horizontal axis in a curved duct having an upper air inlet provided with shutters A, and a lower outlet D 2 . Alternatively the fan could be driven through bevel gearing about a vertical axis within a vertical duct. Heat may be supplied to the air by burners B and fuel may be burnt to increase the thrust, the rate of fuel injection being adjusted manually or automatically to suit operating conditions. A variable ratio gear may be installed in the drive W to vary the relative thrusts of the rearward downwardly directed jet and the lift fan.