baber/WOPTO huggingface dataset:
Patent GB-239783-A (GB)
Title: Improvements in wrought iron annealing pots
IPC: C21D9/00
Filed: 1925-03-06
Abstract: 239,783. Breddin, P. March 6, 1925. Annealing-boxes. - In a wrought iron annealing not provided with a cover rim 3 welded thereto, the cylindrical body 1 and bottom 2 are produced in one piece from a sheetmetal plate by a pressing or drawing operation such as that described in Specification 237,785, [Class 83 (iv), Metals, Working]. The rim 3 is provided with one or more packing surfaces 4, 5 and the usual carrier pieces 7 are secured in any convenient manner to the part 6 of the rim 3. Specification 8171/08 also is referred to.
Patent GB-619051-A (GB)
Title: Improvements in or relating to apparatus for producing glass fibre strands and strands of fibres of material having drawing characteristics similar to those of glass
IPC: D02G3/18
Filed: 1946-02-28
Abstract: 619,051. Twisting glass &c. fibres. THURSTON, A. P. (Owens-Corning Fiberglass Corporation). Feb. 28, 1946, No. 6236. [Class 120(ii)] [Also .in Group XXIII] In a combined attenuating, winding and stranding device for glass or similar fibres, of the type comprising a rotary cage whereon the fibres are wound tangentially and discharged longitudinally, two alternating series of longitudinal bars provided on the cage are subject to relative radial and longitudinal movement as the cage rotates, so that convolutions of the fibres are alternately supported first by bars of one series, then by bars of the other series, and are advanced along the cage by the relative longitudinal movement of the bars. As shown, the bars 17 secured to the heads 18, 19 are rotated about the axis A-A of the fixed shaft 14 by a drive to the pulley 28; the bars 16, alternating therewith and driven thereby, are secured to a tube 15 rotatable about an axis B which is offset vertically from the axis A-A (to provide the relative radial movement between the bars 16 and 17), and inclined thereto in a horizontal plane (to cause slight longitudinal movement of the bars 16 in the direction of the axis A-A, such movement being towards the head 18 while they are holding the fibres clear of the bars 17 at the top of the cage, and towards the head 19 as they themselves are retracted clear of the fibres at the bottom of the cage). The bars 17 may be of inwardly facing U-shaped cross-section, and may be secured in slots 20 in the peripheries of the heads 18, 19; their open inner sides may be closed by caps welded &c. thereto. Molten glass streams from orifices in a bushing arranged above the cage are attentuated by the latter as the resultant filaments are wound thereon, and after longitudinal removal the twisted fibres may be further compacted by a twisting turbine before being wound into a package, Fig. 1 (not shown).
Patent GB-740632-A (GB)
Title: Centrifugal pulverizer
IPC: B02C13/18
Filed: 1953-03-06
Abstract: 740,632. Impact pulverizers; ball mills. P.H.I. ENGINEERING, Ltd. (Engler, O.). March 6, 1953, No. 6237/53. Class 59. The casing 1 of a centrifugal pulverizer encloses a grinding space 2 and a classifying space 3, and the material to be pulverized together with carrier gas and /or air is fed through a downpipe 8 to a centrifugal impeller 18, and a funnel-like device 15 separates the grinding space from the classifying space, the pulverized material being discharged through a distribution chamber 9. The downpipe 8 is provided with a shell 11 which can be raised and lowered by means of rods 12, and the shell 11 is connected to the device 15 by means of straps 13 and bolts 14 so that the device 15 together with the shell can be raised to permit the withdrawal of the impeller 18 through a door 19 in the casing 1. The bolts 14 are adjustable in oblong holes 20 in the straps 13 so as to adjust the gap 21 between the device 15 and the shell 11. The impeller is provided with a circular plate 22 and with impact plates or vanes 23 which are held in place by means of a ring 24 which is spaced from the device 15 to provide a gap 25. Balls or other hard bodies may be inserted in the grinding space 2. Particles of the desired fineness are carried from the classifying space 3 around the lower edge of an adjustable pipe 28 to the chamber 9 for discharge through outlet branches 10. Coarser particles are returned via the device 15 and gap 21 to the grinding space 2. The casing 1 is provided with a concave part 29 merging into a convex part 30, and with a sloping or concave bottom ring 27. In a modification, Fig. 2 (not shown), the impeller is replaced by a number of paddles or rods with or without pegs or hammer heads and arranged in one or more horizontal planes. In a further modification, Fig. 3 (not shown), the impeller is provided with additional impact plates or vanes arranged in one or more horizontal planes.
Patent GB-1517275-A (GB)
Title: Electrical random source
IPC: H03K3/84
Filed: 1975-07-01
Abstract: 1517275 Random pulse generators BRITISH BROADCASTING CORP 1 July 1975 [4 July 1974] 06249/78 Divided out of 1517274 Heading G4D The disclosure is the same as that of the main Specification but the claims concern the use of sampled white noise as an additional input to the exclusive OR gate in a pseudo-random pulse generator.
Patent GB-648920-A (GB)
Title: Self-quench superregenerative wave-signal receiver
IPC: H03D11/06
Filed: 1948-02-28
Abstract: 648,920. Super - regenerative receivers. HAZELTINE CORPORATION. Feb. 28, 1948, No. 6292. Convention date, Nov. 28, 1947. [Class 40 (v)] A super-regenerative receiver of the type in which the received signal is converted in the super-regenerator to a different frequency at which super-regenerative amplification takes place, is arranged to be self-quenching. The new frequency may be an intermediate frequency produced by heterodyning, as described in Specification 638,204 or may be produced by frequency multiplication. The received signal is fed to the grid of valve 110 together with the output from the grid of a beat oscillator valve 180. Valve 110 operates as a logarithmic mode super-regenerative amplifier having its oscillatory frequency controlled by circuit 113, 114, 115 tuned to the intermediate frequency. The H.T. is applied through resistors 167 and 166 to the control grid with the result that oscillation builds up until a cathode condenser 170 charges sufficiently to bias the grid to cut-off to produce quenching. The cathode circuit also includes a network comprising a capacitor 176 and a resistor 173 and the grid circuit a network comprising components 118, 167, 168 and 169. These networks maintain the mean cathode and grid currents constant and so stabilize the operation of the receiver as described in Specifications 646,331 and 654,887 respectively. Frequency - modulated signals may be detected by slightly detuning the circuit 113-115.
Patent GB-105977-A (GB)
Title: Improvements in or relating to Pneumatic Cushioning Devices for Aircraft.
Inventor: SLOPER THOMAS
IPC: B64B1/00
Filed: 1916-05-04
Abstract: 105,977. Sloper, T. May 4, 1916. Pneumatic springs.-A cushioning-device for aircraft consists of an air-cushion A provided with one or more internal ties D whereby two opposite sides are drawn in relatively to the positions they would occupy under inflation if free, the aircushion being so shaped that, when tied-in, it is approximately circular in a plane parallel with the tied-in sides, and means are provided for securing one of the tied-in sides to the part to be cushioned. The tie D may be a rigid link or may be of flexible material for example, a spring or chain, and is preferably freely hinged at its ends. The air-cushion is-secured to plates B, B<1> which are provided with eyes B<4>, B<5>, to receive the tie D, the upper plate B being provided also with a socket B<2> for the end of a spar C. The upper plate B may be replaced by a ring mounted inside the cushion and either secured directly to an horizontal supporting- member or secured thereto to a second outer ring. An internal lining for enclosing the tie and securing-plates may be provided to prevent leakage of air. When a number of cushions are arranged one behind the other on any particular part of an aircraft, they are graded in size to present a. streamline form-and they may be enclosed in a common cover of canvas. The air-cushions may consist of two hemispherical portions joined by a flexible joint such as is described in Specification 21863/13, and may be constructed of the fabric described in Specification 25605/13, [Class 4 Aeronautics]. Specification 9045/14, [Class 113 (ii), Ships and boats, Kinds &c. of] also is referred to.
Patent GB-659202-A (GB)
Title: Improvements in or relating to carriers or driving means for work-pieces in lathes, grinding machines and the like
IPC: B23B33/00
Filed: 1949-03-10
Abstract: 659,202. Lathe &c. drivers. HOWARD, S. G. March 3, 1950, No. 6505. [Class 83 (iii)] A driver for lathes, grinding-machines and the like comprises a ring a adapted to fit over the work-piece, a lever d mounted in the ring for radial and pivoted movement and having its inner end formed as a double cam for gripping the work-piece upon being rocked in either direction, and a spring h adapted to urge the lever inwardly. The lever d is mounted in a slot c in the ring a by means of a pin e which passes through a slotf, or hole of larger diameter than the pin, in the lever. A hole g opens into the slot f and houses the spring h and backing- screw j. Adjusting screws n and lock-nuts p are provided against which the lever d may grip the work-piece resiliently prior to the preferably-smooth cam surfaces on the lever being driven into binding engagement during the machining operation.
Patent GB-1528684-A (GB)
Title: Low phosphate content glassy phosphate detergent compositions having optimum detergency
IPC: C11D3/06
Filed: 1976-02-19
Abstract: 1528684 Granular detergent composition PROCTER & GAMBLE CO 19 Feb 1976 [20 Feb 1975 16 June 1975] 06599/76 Heading C5D Granular detergent compositions comprise (A) from 0À1 to 4À0% by weight of a glassy phosphate of formula:- wherein M is alkali metal, y is 5-50 and y :x is from 1:1 to 1:1À5; (B) from 5 to 34À9% by weight of a mixture of pyrophosphate and orthophosphate builder salts having a weight ratio of 1:1 to 200:1; (C) from 0 to 30% of a tripolyphosphate builder salt; and (D) from 3 to 30% by weight of an anionic, nonionic, zwitterionic or ampholytic surfactant; wherein the total amount of (A), (B) and (C) is 5-35% by weight of the composition. The surfactant may be a compound of formula:- wherein R, is C 6 -C 20  straight chain alkyl, R 2  is C 1 -C 3  alkyl and M is a salt-forming radical; a compound of formula:- wherein R 3  is C 6 -C 20  alkyl or alkenyl, R 4  is C 1 -C 10  alkyl and M is as defined above; a compound of formula:- wherein R 5  is C 9 -C 23  alkyl, R 6  is C 1 -C 8  alkyl and M is as defined above; a compound of formula:- wherein R, is C 10 -C 20  alkyl or alkenyl, X is 1-30 and M is as defined above; a C 12 -C 24  olefin sulphonate, an alkyl sulphate, an alkyl ether sulphate or an alkyl benzene sulphonate. Additional builders may be carbonates, bicarbonates, sesquicarbonates, silicates, sulphates or water insoluble aluminosilicate, of formula:- wherein z and y are each at least 6, the ratio of z to y is 1À0 to 0À5 and x is 15 to 264. In a modification (A) may consist of 1% to 90% by weight of a glassy phosphate and 10% to 99% by weight of a protective agent such as an ethoxylated carboxylic acid, an ethoxylated alcohol, an amide, a polyalkylene glycol, an ethoxylated alkyl phenol, a fatty acid or alcohol.
Patent GB-889884-A (GB)
Title: Objectives with axially movable optical components
IPC: G02B7/10
Filed: 1960-02-25
Abstract: 889,884. -Variable focal length lens mounts. SCHNEIDER, M. C. Feb. 25, 1960 [April 22, 1959], No. 6623/60. Class 97(1). In the variable focal length objective shown in Fig. 1 relative movements are imparted to the lens components I and II by a lever 1 which is pivoted at 1b, is linked at 5a to the component II and has a pin and slot connection 2, 10b with a bell-crank which is pivoted at 10a and linked at 4a to the component 1. The bell-crank thus serves to reverse the direction of movement of the component I, when the arm 1c of the lever 1 is perpendicular to the tangent to the slot 10b. A reversing movement of component 1 may also be effected by linking the arm 1c of the lever 1 to a pivoted lever, which is connected at one end to the link 4a. A further form is shown in Fig. 3, where the forked end of the lever 1 engages a pin 7a fixed to component 11 and slidable in a slot 9a, this pin being provided on one end of a link 14 coupled to a bellcrank lever 13, which is pivoted at 13a and connected to a link 4b having a pin 6b connected to the component I and slidable in a slot 8b.
Patent GB-491655-A (GB)
Title: Improvements in bonded abrasive articles
IPC: C09K3/14
Filed: 1937-03-06
Abstract: In a bonded abrasive article the abrasive particles comprise diamond particles and other or secondary abrasive particles having a hardness between 9 and 10 on Mohs scale and of substantially smaller average dimensions than the diamond particles.  Secondary abrasive particles specified are fused alumina and the carbides of silicon, boron, tungsten and tantalum, and mixtures thereof.  The total mass of secondary abrasive particles is preferably substantially greater than the total mass of diamond particles. The bond may be a heat hardenable resin which may contain lime and fillers.ALSO:In a bonded abrasive article the abrasive particles comprise diamond particles and other or secondary abrasive particles having a hardness between 9 and 10 on Mohs scale and of substantially smaller average dimensions than the diamond particles.  Secondary abrasive particles specified are fused alumina and the carbides of silicon, boron, tungsten and tantalum, and mixtures thereof.  The total mass of secondary abrasive particles is preferably substantially greater than the total mass of diamond particles. The bond may be a heat hardenable resin which may contain lime and fillers.
Patent GB-487974-A (GB)
Title: Improvements in cathode ray tubes and the like
IPC: H01J29/82
Filed: 1937-03-08
Abstract: 487,974. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., JACOB, J. E. B., JESTY, L. C., and SEAGER, G. W. March 8, 1937, No. 6792. [Class 39 (i)] In a cathode-ray tube or like electric discharge device in which a plurality of metal members are spaced along, and aligned relatively to, an axis, at least two of the members are aligned by insulating washers and are spaced by two pairs of flange surfaces, each pair cooperating with an insulating spacer, at least one flange surface of each pair being carried on a member, and each member carrying at least one flange surface. In the form shown in Fig. 3, the members 1, 2, 10 are aligned by washers 6, 11. Spacers 5, 6, 12 co-operate with flange surfaces on flanges 3, 4, 7 and disc 10. An insulator may be both a washer and a spacer, for example 6. The faces of diaphragm 10 act as flange surfaces, co-operating with spacers 5, 12. One flange surface of each pair may be carried by an external tube, which acts as a clamp joining two tubes together, Fig. 4 (not shown). In one arrange- .ment, a cathode is supported within the modulating cylinder 1 by an insulating washer and the apertured diaphragm 10 has a conical insert pointing towards the cathode. The leads to the cathode are clamped over an insulating rod supported by the modulating electrode. The electrode 2 and other electrodes are supported by a frame of four rods. In a modification, the flanges 3, 7, Fig. 8, are bent at an angle so that only a small part abuts on the insulators 5, 6 so as to reduce the capacity between the metal parts. The modulating electrode 1 is bent back to form the apertured diaphragm 37 and has a raised part 4 retaining the insulator 6. The first accelerator 1<1> has a flange 4<1> held between insulators 5, 13. The flange 7 is secured within the second accelerator 2 by bent ears 38 ; the flange 3 is integral with the apertured diaphragm 45 which is secured within 2 by spot welding. The cathode 39 is supported within the modulator by insulators 40, 41 spaced apart by the member 42 and secured by bent ears 43. Specifications 402,607, 444,633, 454,258, 462,243, 464,430, and 466,188, are referred to.
Patent GB-275554-A (GB)
IPC: B23D61/06
Filed: 1927-03-11
Abstract: 275,554. Clifton, C. H. Aug. 6, 1926, [Convention date]. Saws.-In circular saws with inset teeth, the tooth or its socket is so formed that the tooth in cutting tends to turn about a point P<1> situated in, or in front of, a radial line R through the cutting-edge of the tooth. This may be effected, e.g. by cutting away the box of the socket, as in Fig. 5, or by shaping the bottom of the tooth as in Fig. 6. Any usual securing means such as a wedge F may be used, with or without interlocking tongues and grooves h.
Patent GB-1458577-A (GB)
Title: Arrangement for measuring the distance betw'en successively located objects on a track
IPC: G01B7/00
Filed: 1974-02-14
Abstract: 1458577 Inductive system MESSERSCHMITT-BÍLKOW-BLOHM GmbH 14 Feb 1974 [15 Feb 1973] 6806/74 Addition to 1406674 Heading H4U [Also in Division B7] In the rail vehicle control system of the Specification 1,406,674 the inductive coupling arrangement between the vehicle carried coupling coils and the trackside line is impressed to reduce or compensate for the change of coupling due to movement of the coils relative to the line. The improved coupling arrangement comprises a coil 23 on a single U-shaped core 24; an auxiliary coil 28 connected in series with the coil 23 to ensure that the lines of magnetic force near the line centre conductor 27 are parallel to the line plane so that coupling is less affected by lateral movement of the coupling coil relative to the line; a longitudinally extending member 32 of magnetic material (which can be the line support) disposed beneath the line to provide a return magnetic circuit for the coupling coil core 24, and coils 37 positioned adjacent the pole surfaces 36 and responsive to the effective flux in the gaps 35, which are connected in the negative feedback paths of amplifiers in the associated transmitters and receivers whereby the effect of vertical movement of the coupling coil with respect to the line are reduced or compensated. In a two conductor line arrangement Fig. 3, (not shown), the line plane is vertical and two longitudinally extending members of magnetic material which are L-shaped in section are provided.
Patent GB-744252-A (GB)
Title: Improvements in and relating to electric light fittings and their reflectors
IPC: F21S8/04
Filed: 1953-03-12
Abstract: 744,252. Trough reflector supports. STRONG ELECTRIC CORPORATION (GREAT BRITAIN), Ltd., and ALDRICH, E. C. June 14, 1954 [March 12, 1953], No. 6809/53. Class 75(4). The trough reflector 2 of a tubular electric lamp A is secured to a back plate such as the base of a trunking channel B by retaining clips 1 arranged in fixed relation to, as by location in a groove in, a securing member 4 for the reflector, the clip 1 and member 4 being rotatable into one position in which the member 4 could pass through a slot 8 in the reflector and into a second position in which the member 4 and clip 1 lie transversely to the slot 8 as shown. The member 4 is convexly curved at the face engaging the reflector which is pressed between the member 4 and the base of channel B by a compression spring 5 acting in effect between the member 4 and a retaining plate 7 through which the bolt 3 passes after passing through the clip 1, member 4, slot 8 and a hole in the base of channel member B, the spring 5 being retained on the bolt by the nut 6 and intermediate washer 9.
Patent GB-286622-A (GB)
Title: Process for removing readily absorbed gases, more particularly carbon dioxide and sulphuretted hydrogen, from gas mixtures by absorption in water under pressure
IPC: C10K1/10
Filed: 1928-03-05
Abstract: 286,622. Ges. f³r Linde's Eismaschinen Akt.-Ges. March 5, 1927, [Convention date]. Washing processes for the removal of readily absorbed gases, more particularly sulphuretted hydrogen and carbon dioxide from gas mixtures by absorption in water under pressure which is subsequently regenerated, are effected in two towers in the first of which the sulphuretted hydrogen is washed with water saturated with carbon dioxide withdrawn from the second tower which receives regenerated water, the water containing sulphuretted hydrogen leaving the first tower being regenerated apart from the remaining water. A lignite gas containing 7.5 per cent of sulphuretted hydrogen and 30 per cent of carbon dioxide is compressed in a compressor 1 and the heat of compression absorbed in a refrigerator 2. The gas passes to a tower 3 receiving sufficient water through an inlet 4 to absorb the sulphuretted hydrogen and then enters a tower 8 fed with nearly double the amount of water through an inlet 10. Water from the tower 3 is reduced to atmospheric pressure in a turbine 7 and gas containing about 25 per cent of sulphuretted hydrogen is separated in a vessel 12, a further quantity of gas being removed in a separator 14 by a vacuum pump 15. These gases may be passed to Claus furnaces to recover sulphur. Last traces of sulphuretted hydrogen are removed in a tower 16 fed with ferric oxide or sulphur dioxide, the water collect. ing in a container 17. Water from the tower 8 after reduction of pressure in a turbine 24 passes to a separator 18 in which a gas containing about 75 per cent of carbon dioxide is obtained. A further quantity of carbon dioxide is expelled by aeration in a tower 20. Regenerated water collects in a container 21 and with that from the container 17 is returned to the system by a turbopump 22. To eliminate corrosion of the tower walls or pipes, alkali such as sodium carbonate may be added to the water. The removal of sulphur dioxide in the first tower from gases containing it together with carbon dioxide is referred to.
Patent GB-1151901-A (GB)
Title: Rotary Solenoid.
Inventor: GAYLER JACK ERNEST
IPC: H01F7/14
Filed: 1965-02-17
Abstract: 1,151,901. Electromagnets. JASON ELECTRONIC DESIGNS Ltd. 12 May, 1966 [17 Feb., 1965], No. 6898/65. Heading H1P. A rotary solenoid comprises a pair of armatures mounted for rotation within a cylindrical shell, the co-operating faces of the shell and armatures being so shaped that upon rotation the air gaps between them diminishes and thus reduces the reluctance of the magnetic circuit which includes the shell, the air gaps and the armatures. A coil or coils housed within the shell sets up magnetic flux within the circuit which causes the armatures to rotate, the amount of rotation being limited by stops (not shown). In a first embodiment each armature is made up of two semi-circular parts partly displaced relative to one another, the resulting eccentrically curved faces 17 co-operating with similarly curved polepieces 9 of the shell. Spring means may be included to return the armature to the "wide gap" position. In a second embodiment (Figs. 5-7, not shown) each armature comprises a substantially rectangular plate having ends (17a) curved concentrically with the axis of rotation, the air gap between the plate and similarly curved polepieces (9a) being of uniform width but having a length determined by the angular position of the plate. In a third embodiment (not shown) the solenoid includes an armature of each type, it being possible in this case to choose the rate of reduction of the air-gaps in such a way that the torque of the solenoid remains substantially uniform in any angular position.