baber/WOPTO huggingface dataset:
Patent GB-675431-A (GB)
Title: Improvements in sound recording and reproducing machines
IPC: G11B15/26
Filed: 1950-06-23
Abstract: 675,431. Sound recording and reproducing apparatus. KUHLIK, J. M. June 23, 1950. No. 15733/50. Class 40 (ii). In a recording and reproducing apparatus employing a vibratory stylus, a film in the form of an endless band is supported on a pair of rollers, one 17 being a fixed driving roller and the other 18 swingably movable on eccentric discs 29, 30 under the influence of a spring 18<SP>1</SP> to produce the necessary tension in the film. The transducer 39 is traversed on a guide rod 43 by means of a lead-screw 46 which is engaged by a pin 44 on the transducer under the influence of a spring 55. The roller 17 is driven by a motor 20, Fig. 1, via a belt 24, wheel 21 and belt 26, and the lead screw is driven from the shaft 19 of the roller 17 by a countershaft 47 by means of worms 51, 52 and wheels 50, 53. The stylus is held in contact with the record by means of a spring 57, the tension of which may be increased when recording by the movement of an arm 59 by a control knob. Backspacing is accomplished by means of a solenoid 61 which, when operated, moves a band 64 a small amount against the tension of a spring 65 and rotates the leadscrew 46 against a friction coupling with the wormwheel 53. The roller 18 is set at an angle with regard to roller 17 so that the film tends to ride up roller 17 and register with the stepped part 37.
Patent GB-145011-A (GB)
Title: Improvements in and relating to flying machines
IPC: B64C27/10
Filed: 1920-06-10
Abstract: 145,011. Hewitt, P. C. June 14, 1919, [Convention date]. Helicopters; propelling; steering, balancing, and regulating altitude.- Relates to lifting propellers for flying machines of the helicopter type. An upper propeller 1 is mounted on a vertical shaft 3 which passes through a tubular shaft 4 carrying a lower propeller 2. The shaft 4 extends through a stationary tubular bearing 5 forming part of the frame 6 of the machine. The diameter of the propeller should be between T/H.P. Î #T/17 and 0.7 T/H.P. Î #T/17 where T is the total lift of the propellers in pounds, and H.P. represents the horse-power. The shafts 3 and 4 are driven in opposite directions by motors 8 and 9 arranged with their driving shafts in the longitudinal axis of the car 7, and provided with bevel pinions 10, 11 meshing with larger pinions 12, 14 secured to the shafts 4, 3. Each of the shafts 3 and 4 its thus driven by a couple, and lateral thrust is eliminated. The propeller blades 27 are long and narrow, and are supported on internal radial arms 26 in such a way that the line of support is forward of the centre of pressure upon the blade. An automatic adjustment of the pitch angle of the blades within certain limits is thus obtained, the support of the blade being somewhat elastic. The inner end of the blade terminates at a point between one-fifth and twofifths of the radius of the propeller from its axis, and the ratio of length to breadth of the blade is preferably not less than 5 : 1. The blade area for all four blades is about 6 per cent of the propeller disk area, but for slow speeds it may be 9 per cent. The pitch angle of the blades is about 6 degrees to 24 degrees to the horizontal, but for fast machines the pitch may decrease towards the centre of the propeller. The actual pitch angle is several degrees greater than the most efficient pitch angle so that when the machine is passing horizontally through the air the efficient angle will be obtained when it is tilted from the horizontal. The propeller blades are preferably constructed of aluminium, and their speed is not greater than one-eighth of the engine speed. To turn the machine about, its vertical axis, planes 30, 31 are attached to the extremities of the arms 32, 33 below the propeller blades, and may be tilted in opposite directions from the vertical. These planes may be used to correct any rotation due to unequal action of the propellers. The planes may also be rotatable about vertical axes 30<1> and 31<1> to turn the machine when it is moving horizontally. To produce lateral motion, only the plane 31 is moved to horizontal position so that the downward air current forces this plane downward and tilts the machine. Planes 34 and 35 are provided to maintain the machine tilted. These planes are not subject to the air current from the propeller, so that they are only acted upon by the current due to translational motion when tilted about axes transverse to the arms 32, 33.
Patent GB-1032024-A (GB)
Title: Processing of colour photographic materials
Inventor: ALCOCK DAVID GERALD
IPC: G03C7/42
Filed: 1964-04-16
Abstract: 1,032,024. Bleach-fix compositions. ILFORD Ltd. April 13, 1965 [April 16,1964],No. 15822/64. Heading G2C. A bleach-fix composition comprises a cupric complex of pyridine-2. 6-dicarboxylic acid, of amino-diacetic acid or of nitrilo tracetic acid, a water-soluble halide and ammonium or as alkali metal thiocyanate. Such compositions are particular useful for bleaching silver in layers containing indophenol dyes derived from α-naphthol type colour couplers.
Patent GB-710356-A (GB)
Title: Improvements in or relating to devices for removing plaster casts or bandages
IPC: A61F15/02
Filed: 1951-07-05
Abstract: 710,356. Removing plastic bandages. KING, C. G. A., and NORRIS, R. J. July 7, 1952 [July 5, 1951], No. 15959/51. Class 81(2) A plaster bandage remover comprises an electrically driven chain saw. The motor M drives a sprocket 17 around which the saw 16 passes, the lower loop of the saw passing around a fixed guide member 18. The lower end of the saw is normally shielded by a slotted yoke 32 carried by tubular guide members 30, 31. Both guides 30, 31 are urged downwardly by coil springs 35, 36, guide 30 encloses a plunger rod 37, carrying a guiding foot 40, and guide 31 encloses a rod 49 carrying a presser member 51, both these latter rods being urged downwardly by springs 38, 50. In use, the guide 40 is inserted under the plaster with the presser member 51 on top, and a handle 42, pivoted at 43; is gripped so that, by means of an arm 44, engaging in a slot in rod 37, the whole mechanism is drawn downwards towards the guide 40. After the shield 32 has reached the top of the plaster the saw is projected downwards through the plaster until it reaches the guide 40. The whole appliance is then advanced to effect the desired cutting. Preferably the lower part 39 of. the rod 37 is of tapered cross-section to enable the appliance to be guided round curves if necessary. The guide member 40 is preferably covered with a layer of insulating material such as a synthetic resin.
Patent GB-691593-A (GB)
Title: Device for applying liquids to surfaces
IPC: A45D34/04
Filed: 1949-06-15
Abstract: 691,593. Device for applying liquids to surfaces. GORZALA, W. Aug. 9, 1950 [June 15, 1949], No. 15966/49. Class 19. A device for applying liquids to surfaces comprises a tubular container for a liquid, a nosepiece fitted into the container and formed with an axial bore, one end of which bore communicates with the interior of the container and the other end of which forms an outlet opening constituting or adapted to accommodate an applicator, the axial bore and the outlet opening being such that liquid can flow through when the applicator is applied to a surface; the nosepiece has (a) a reduced end portion which engages in the container, as by being screw-threaded externally for screwing into a corresponding internal screw-thread within the container, (b) an intermediate portion, the outer configuration of which corresponds to the external shape of the container, so that the intermediate portion forms an extension of the container, and (c) a projecting portion remote from the reduced end and adapted as by being screwthreaded externally, to receive a removable cap if required. In the Figures 1 is a cylindrical barrel the bore, 2, of which constitutes a reservoir for the liquid used: The upper end of the bore is formed with a screw-threaded portion 3 receiving the screw-threaded part 4 of a plug 5 which constitutes a closure and when removed enables the bore to be filled with liquid. The lower end of the bore is also formed with a screw-threaded portion 6 receiving the screwthreaded part 7 of a nose-piece 8. The nosepiece is formed with a hole extending from one end to the other, the hole having an enlarged portion 9 communicating with the bore 2 and a narrower portion 10 extending to the lower end of the nose-piece. In Fig. 2 the portion 10 is tapered and in this tapered portion is fitted a brush-holder consisting of two portions 11 and 12 in the annular space 13 between which a brush 14 is accommodated. When the device is not in use the brush is protected by a hollow removable cap 16 having an internal screwthreaded part 17 engaging with an external screw-threaded part 18 of the nose-piece 8. The part 18 is of narrower diameter than the part above it so as to form a shoulder against which is provided a washer 19 of resilient material. The plug 5 may be formed with a chamfered part 20. The brush-holder according to Fig. 3 consists of a tube having upper and lower flattened portions 21 and 22 at right angles to each other, the portion 22 holding the brush 14. In Fig. 5 the portion 10 is of cylindrical form and receives directly the brush 14 and the interior of the cap is formed with a shoulder 24 which engages with the lower end of the nose-piece 8 to form a seat. If desired the closure 5 can be made hollow and of resilient material so that pressure can be applied to the liquid by distorting the cap.
Patent GB-379391-A (GB)
Title: Improvements in or relating to the operation of absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1931-06-01
Abstract: 379,391. Heating by induction. ELECTROLUX, Ltd., 153, Regent Street, London.-(Assignees of Munters, A. J. E ; Stockholm.) June 1, 1931, No. 15975. Convention date, May 31, 1930. [Class 39 (iii).] The heat resulting from eddy currents set up by an external rotating magnetic field which effects a circulation of liquid within absorption refrigerating apparatus is utilized for heating the media within the apparatus, particularly the solution in the generator. For the gas circulation the liquid set in motion serves as an inducing medium for the gas through ejector nozzles. A continuous-cycle refrigerating system, Fig. 1, containing an inert gas not lighter than the refrigerant and comprising the usual generator K, condenser C, evaporator G, absorber A, and liquor heat exchanger T is provided with a device Cv for the liquid circulation between generator and absorber and a device Cg for gas circulation between absorber and evaporator. The device Cv comprises a laminated iron cylinder 1, recessed to hold winding coils 3, 4, 5 connected to a three-phase current source, located around a non-magnetic electrically conducting wall 6 of the generator. A cylindrical body 7 of laminated iron is arranged in the liquid and facilitates the formation of a strong magnetic field. The liquid is set in motion so that it is raised from the level of the strong liquor inlet pipe 18 to the point at which the weak liquor flow pipe 19 opens from the top of the generator, and is also heated wholly or in part by the eddy currents set up in the liquid and in the metal wall. The device Cg contains an electrolytic liquid or a liquid metal, the movement of which induces a flow of gas from the absorber by way of the pipe 11, terminating in inducing nozzles 12, Fig. 4, and through the pipe 13 to the evaporator. Where an electrolyte is used chromium or other rustpreventing salts may be added thereto. Another arrangement is shown in Fig. 2 for a system having no inert gas. The device Cv is applied to a coiled part 6 of the strong liquor pipe, parts of which may be interconnected by electrical conductors so that current of a strength suitable for heating may be set up in the material of the pipe. A floating or pivoted conductive solid body provided with vanes or the like may be mounted in a poorconducting liquid so as to be set in rotation by the magnetic field. The liquid and gas circulating means may be combined in one element.
Patent GB-278411-A (GB)
Title: Process for the treatment of zinc waste
IPC: C01G9/02
Filed: 1927-03-24
Abstract: 278,411. Bury, E. March 24, 1927. Ammonium sulphate.-In a process for obtaining zinc hydrate or oxide and ammonium sulphate from zinc waste, such as from smelting operations or from the manufacture of zinc or galvanized products, the waste is leached with sulphuric acid and then treated with excess of ammonia. The zinc sulphate solution is thus converted to soluble zinc hydrate, and iron, alumina, &c. present as impurities to insoluble hydrates which are removed by sedimentation, bringing down also gelatinous silica, and by fil-- tration. The residue is boiled down and precipitates zinc hydrate, the ammonia being recovered by known means. The remaining ammonium sulphate solution is evaporated to produce crystals. The zinc hydrate may be calcined to oxide.
Patent GB-1136014-A (GB)
Title: Anti-misting windows
IPC: A62B18/08
Filed: 1966-04-12
Abstract: 1,136,014. Hydrophilic plastic sheets. O. H. DRAGER, [trading as DRAGERWERK, HEINR. & BERNH. DRAGER]. 12 April, 1966 [8 April, 1965], No. 16033/66. Headings C3F and C3P. A hydrophilic surfaced window is made of acetyl or butyl cellulose or PVC, and contains as a wetting agent/plasticizer one or more of a polyglycol alkyl aryl ether, a derivative of naphthalene sulphonic acid or a fatty alcohol sulphonate. It may be made by incorporating the additive in the polymer melt, or by evaporation of a suitable polymer/additive solution. The hydrophilic nature of the surface may be augmented by acid hydrolysis (cellulosic sheets) or acid oxidation (PVC sheets).
Patent GB-1356028-A (GB)
Title: High pressure moulding vessels
Inventor: WITKIN D E
IPC: B30B11/00
Filed: 1971-05-20
Abstract: 1356028 Isostatic moulding apparatus NATIONAL FORGE CO 20 May 1971 [5 Aug  1970] 16055/71 Heading B5A A moulding apparatus comprises a vessel 100 closed at each end by plugs 102, 108 respectively, which are held in position by a yoke 104, and pressure means, e.g. fluid cylinders 110, which are operable to exert a force on the vessel body during high pressure moulding to maintain the body in contact with the upper plug 102 and compensate the elastic deformation of the yoke 104. In Figs. 1 and 2 (not shown) the pressure means is formed by an enlargement (54) of the inner wall of the vessel.
Patent GB-439568-A (GB)
Title: Improvements in and relating to the manufacture of compound glass
IPC: C08L29/14
Filed: 1934-05-30
Abstract: A synthetic resin made by hydrolyzing a polyvinyl ester such as the acetate or propionate to the extent of 70--97 per cent, and condensing the product with an aldehyde such as formaldehyde to such an extent that the acetal reaction proceeds to 80 per cent and preferably 90 per cent or more of completion, is used with or without plasticizers as the intermediate layer in compound glass. The resin may be prepared as described in Specification 436,072. Specifications 367,633, [Group VIII]; 378,608; and 384,153, [Group VIII], also are referred to.  The first Provisional Specification refers to Specification 351,082.
Patent GB-677376-A (GB)
Title: Improvements in locking devices
Inventor: GOOS CARLOS ENRIQUE FEDERICO
IPC: H01H13/56
Filed: 1950-06-28
Abstract: 677,376. Switches held set and freed mechanically. BIROME SOC. ANON. COMMERCIAL. &INDUSTRIAL. June 28, 1950. No. 16086/50. Class 38 (v). [Also in Groups XV and XXIV] The circuit between conductors 26 and 27 is alternately closed and opened by a contact member 25 on successive operations of a push-button 18. The button 18 is attached to a plunger b which has a cardioid-shaped groove c therein co-operating with a fixed pin 2 and is acted upon by a spring 1. The groove c has recesses 3 and 12 which are engaged by the pin 2 to lock the switch in the open and closed positions respectively. A by-pass passage 28, 29 from the groove c is provided to enable the device to be readily assembled or taken apart. The groove c may be provided on the guide a instead of the plunger b and the pin on the plunger.
Patent GB-418759-A (GB)
Title: Improvements in or relating to television and like apparatus
IPC: H04N3/08
Filed: 1933-06-02
Abstract: 418,759. Television. BAIRD, J. L., and BAIRD TELEVISION, Ltd., 58, Victoria Street, London. June 2, 1933, No. 16097. [Class 40 (iii).] Scanning is accomplished by a combination of three or more mirror polyhedrons 4, 6, 7, 8 or lensed discs or drums. The polyhedron 4 rotates at a speed which is an integral multiple of that of the others. The polyhedrons 6, 7, 8 are so combined and angulated that as the scanning spot is moved from one to the next the spot on a screen 3 moves from the end of one scanning-line to the beginning of the next. When the slowly moving members comprise sets of lenses in a circle, certain of the sets have their optical centres outside their apertures to provide the change from one scanning-line to the next as described above. Alternatively the sets of lenses are provided with deflecting-prisms.
Patent GB-952112-A (GB)
Title: Improvements in or relating to radial cam operated clamps
IPC: B25B5/08
Filed: 1961-05-04
Abstract: 952,112. Clamps. W. D. COCHRANE. May 4, 1962 [May 4, 1961], No. 16112/61. Heading B4W. [Also in Division F2] In a clamp operated by a driving member in the form of a rotary cam lever the lever G has on the head thereof projections in the form of radial cams H which when the lever is rotated impart a displacement to the member E which is in the form of a slidable plunger around which the lever G rotates, the plunger being provided with a pin F which is in contact with the cams on the lever G. As shown in Fig. 1 the body of the clamp comprises a pair of plates B between which are held blocks C to mount the clamp pad J and plunger E which is slidably mounted and carries the pin F. The rear face of the head of the lever G bears on the face of a block C, the plunger E being held against the body by a spring K. On rotation of the lever G the cams H are pushed against the pin F to thereby advance the plunger into clamping position. The clamp pad J is adjustable either by screw or cam means. In a modification the arrangement is such that the jaw carried by the plunger is pulled towards the fixed jaw. In another modification, Fig. 3 (not shown), the clamping member, independent of the main body, is mounted on an assembly jig and arranged to clamp by remote control. In another modification, Fig. 5, the clamp comprises a base-plate B which carries two side members L having elongated slots S in which a clamp arm D is pivotally mounted by means of a pin T. An edgewise cam Q is provided on the side of the cam lever G. A spring K holds the clamp arm in such manner that a pin R which projects downwardly from the arm is held against the edgewise cam Q. The first movement of the lever G moves the clamp arm D away from the lever from M to N, by moving the lever still further, the plunger E rises, forcing down the pivotally mounted clamp arm from points O to P to clamp the work.
Patent GB-448300-A (GB)
Title: Apparatus for the determination of the nature, magnitude and/or variation in stress under varying conditions of load and/or pressure in the members of braced structures,suspension bridges and the like
IPC: G01M5/00
Filed: 1935-06-04
Abstract: 448,300. Educational appliances. CANTRELL, W. C., 126, Pepys Road, Wimbledon, London. June 4, 1935, No. 16154. [Class 146 (ii)] [See also Group XIX] Apparatus for demonstrating the nature and magnitude in stress under varying conditions of load in the members of braced structures comprises a rigid framework A in which a pinjointed model M of the structure is supported and loaded, the deflection of the model being marked and the load removed ; whereupon the member under investigation is next removed and replaced by applied regulable tensile forces which are adjusted to produce the same deflection when the load is reapplied. The framework A is built up of angle steels and stands vertically on shoes D. The model M is supported on brackets H adjustable in the slotted framework and secured by wedges I. Wires N on each side of the girder M give lateral stability and a board J attached to the framework is provided with clamps L which may be screwed up to engage the lower member of the girder in its deflected position to mark the latter. The loading being removed, the member under investigation is removed and forces applied at the pins by spring balances O and turnbuckles Q. The weight of the tensioning devices may be sustained by means such as S. The load is now replaced and the tensioning devices adjusted to give the same deflection as before. A three-hinged elbow attachment T may be fitted to accommodate the tensioning devices when used close to the frame.
Patent GB-1469244-A (GB)
Title: Switching arrangement for controlling direct current motors
IPC: H02P7/281
Filed: 1974-04-11
Abstract: 1469244 Control of D.C. motors ROBERT BOSCH GmbH 11 April 1974 [19 April 1973] 16155/74 Addition to 1395659 Heading H2J The motor control system described with reference to Fig. 1 of Specification 1,395,659 is modified by connecting the saturable reactance 21 between the diodes 19, 20 and connecting a tapping 27 on the midpoint of the reactance to the junction of thyristors 13, 15. This arrangement ensures that the choke 21 is saturated in the same direction by braking current flowing from point 27 to 28 and armature idling current flowing from point 26 to 27 during driving. Operation of the circuit is otherwise the same as for Specification 1,395,659.
Patent GB-470207-A (GB)
Title: Improvements in and relating to non-refillable bottle and parts thereof
IPC: B65D49/06
Filed: 1936-06-11
Abstract: 470,207. Non - refillable bottles. ANCHOR CAP & CLOSURE CORPORATION. June 11, 1936, No. 16310. Convention date, June 22, 1935. [Class 125 (i)] A closure for non-refillable bottles comprises a casing 2, Fig. 1, preferably of plastic, for insertion in the neck of a bottle and containing a valve 5 pressed on its seat by a ball weight 6. The parts are assembled and locked together as a unit without deformation of the parts. The closure may be sold separately for attachment by the bottler. The ball is urged against the valve except in the inverted position by inclined fins 22 with sharp contact edges attached to a baffle 7. A projection 24 is provided on the underside of the baffle. The bottle is closed by a cap 31 threaded to a member 29 which is attached to the bottle neck by a metal capsule 35 turned in at 36 under a lip on the bottle neck. The valve has a rounded seat and is closed by a cap 18. It is guided by projections 15 on the casing 2. In a modification, Fig. 6, the capsule 35 is dispensed with and the casing 2 with baffles is retained in the bottle neck by projections 40. A screw cap closure may be added.
Patent GB-145076-A (GB)
Title: Improvements in and relating to electric heating elements
IPC: H05B3/48
Filed: 1920-06-16
Abstract: 145,076. Akt.-Ges. Kummler & Matter. June 16, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Resistances. - A resistance wire h for heating is embedded in a tube m of plastic refractory material and removably mounted in a metal sleeve a closed at one end o. One end of the resistance wire is threaded through insufators e, f within the tube m. The metal sleeve a is lined with mica b and closed air-tight at its upper end by an insulating-block g. The refractory tube m is positioned between insulating blocks l. k.