baber/WOPTO huggingface dataset:
Patent GB-616203-A (GB)
Title: Improvements in intermittent feed mechanisms for cinematographic films
IPC: G03B1/22
Filed: 1946-08-29
Abstract: 616,203. Kinematograph intermittent feed mechanism. ETABLISSEMENTS HEURTIER & CIE. Aug. 29, 1946, No. 26010. Convention date, July 18, 1944. [Class 97 (i)] A claw feed mechanism comprises a drive shaft carrying a cam for rotation within a substantially rectangular opening in a claw member, which oscillates in a plane transverse to the shaft, the cam being kept in permanent contact with two adjacent sides of the opening by spring means acting on the claw member, which has a tail with an elongated opening in which a fixed pin rides. As shown in Fig. 2, the casing 1 of a kinematograph projector supports a drive shaft 2 which engages a gear 3 on a shaft 4, which is rotatably journalled on the casing in bearings 6 and carries a disc 5 having a pin 7 thereon. This pin engages a shoe 8, which, on rotation of shaft 4, slides in a guide 8<1> and thereby rotates a shaft 9 fixed thereto and supported in the parts 12, 13 of the casing by bearings 10, 11 ; shaft 9 is parallel to but not coaxial with the shaft 4. Shaft 9 carries a cam 14 and an eccentrically mounted disc 16. Cam 16 rotates in the opening of a claw member 15 having an arm 15<1>, Fig. 3, carrying a pivoted guide 18 for a brush 17 which is spring urged at 20 to bear on the eccentric 16 and thereby ensure permanent contact of the cam 14 with the convex sides of the opening shown. The claw 15 also has an elongated opening in which slides a pin 21 carried by an arm 22, pivoted to an arm 24 which is rotatable about the axis of shaft 9 ; the arm 24 is spring connected at 27 to the casing 1 so that the arm 22 constantly bears on an adjusting screw 26. In action, rotation of the cam 14 causes the claw 15 to slide into engagement with a film X, after which it oscillates about the pin 21 to drive the film and then slides out of the film engaging position'to return to its initial position. Proper positioning of the film X in the projector and adjustment of the film travel are respectively effected by adjustment of screw 26 and rotation of the arm 22 about its pivot.
Patent GB-442954-A (GB)
Title: Improvements in methods of preparing organic disulphides
IPC: B05B1/26
Filed: 1934-09-19
Abstract: 1-Mercaptobenzthiazole, or nitro, amino or alkyl derivatives thereof are oxidized to the the corresponding dibenzthiazyldisulphides by means of hydrogen peroxide.  An acid such as sulphuric, hydrochloric, formic, nitric, phosphoric, acetic or chloracetic acid is usually added to facilitate the precipitation of the product and the mercaptan is preferably oxidized in the presence of a liquid medium such as alcohol. Instead of the mercaptan its sodium, potassium, lithium, calcium, strontium or barium compound may be used.  In examples, 1-mercaptobenzthiazole or its sodium salt is oxidized with 30 per cent hydrogen peroxide.  1-Mercapto - 4 or 5 - methylbenzthiazole, 1 - mercapto - 4 : 6 - dimethylbenzthiazole, 1-mercapto-4- or 5-chlorbenzthiazole, 1-mercapto-4-nitrobenzthiazole, 1-mercapto-5-aminobenzthiazole and 1-mercapto-3-phenylbenzthiazole are specified as starting materials.  The Specification as open to inspection under Sect. 91 comprises also the oxidation of mercaptans in general with hydrogen peroxide.  The following are mentioned: 1-mercaptothiazole, 1-mercaptobenzimidazole, 1-mercapto5 - nitrobenzthiazole, 1 - mercaptonaphthothiazole, 1 - mercapto - 3 - phenylthiazole, thiophenol, thiocresol, thioxylol, aminothiophenol, thionaphthol, ethylmercaptan, butylmercaptan and propylmercaptan. This subject-matter does not appear in the Specification as accepted.
Patent GB-1047634-A (GB)
Title: Disposable pneumatic tube dispatch carrier
Inventor: WAHLSTROM HANS TORSTEN
IPC: B65G51/06
Filed: 1963-07-08
Abstract: 1,047,634. Vessels for food. REJLERS INGENJORSBYRA A.B. July 8, 1963, No. 26945/63. Heading A4A. [Also in Division B8] Disposable sealed containers for use as despatch carriers in pneumatic tube systems comprise an elongated container body portion with a destructable cover and having an attached annular flange or disc for airtight engagement in the conveyer tube. In one example a cylindrical section container 5 (Fig. 1) or a pair of semi-cylindrical section containers 6 are closed by a circular lid 1 and have flanged seals 2, 3 or 4 attached at either end. In a modification a container 8 Fig. 2 in the form of a rectangular dish has a flat lid 7 at the top and an annular seal 2 attached to the lid or container at one end. In further modification, both the container 9a, Fig. 4 (not shown), and lid 9b are of rectangular dish form and may be divided into separate compartments sealed by separate lids. The parts may be separate of formed from one sheet folded along a longitudinal edge. The containers may be made of thermoplastic materials, cardboard, plastic coated paper waterproof paper, and are sealed by cementing, welding, staples, adhesive tape. The containers may be opened by cutting, tearing or burning at the edge flanges.
Patent GB-171262-A (GB)
Title: Improvements in devices for opening tins, cans, cartons and the like
IPC: B67B7/46
Filed: 1920-09-22
Abstract: 171,262. Mitchell, J. D. Sept. 22, 1920. Opening by cutting. - In a device for opening tins, cans, cartons, &c. comprising a handle a, Fig. 9, and a pair of coacting jaws d, e lying in substantially the same plane, the upper jaw d has a claw or hook fulcrum f, the inside corner k of which is adapted to engage the bead u &c. of the can so that a starting incision v may be made by leverage at right-angles to the bead by an incisor g at the nose of the lower jaw e. The incision v may then be enlarged and one side raised by one of the prongs q at the end of the handle, to permit the insertion of the jaw e to cut around the side or top of the can, the cut w being made by the cutting-edge h as the device is rocked about the fulcrum f in the direction of the arrow. The fulcrum f may be formed with an additional corner m to prevent slipping. An additional claw or hook fulcrum and incisor may be formed at the bottom of the law jaw. The prongs may be pointed and coact with a central recess for making incisions. A central torque s, Fig. 7, between the prongs q may be used as a screwdriver. The device may be fish or bird-shaped in outline or may be elliptical to and provided with a separate haft.
Patent GB-354092-A (GB)
Title: Improvements relating to portable electric lamps
IPC: F21L4/00
Filed: 1930-09-10
Abstract: 354,092. Electric battery lamps. WIESMEYER, H., 6, Gregrova, Prague. Sept. 10, 1930, No. 27050. Convention date, Sept. 11, 1929. [Classes 39 (ii), 75 (ii), and 75 (iv).] Reflectors.-An electric pocket lamp has its reflector formed as a shallow hollow pyramid 1 within which the lamp bulb lies, thus affording a compact design. The edges of the faces of the pyramid have spring bands 2 which snap into grooves 3 in the lamp casing. The front and back covers 6, 8 are fastened by a spring clip 7 hinged to the cover 6.
Patent GB-875856-A (GB)
Title: Production of higher ketones from saturated epoxides
IPC: C07C45/59
Filed: 1959-08-07
Abstract: Ketones are prepared by contacting 2,3-epoxybutane or a saturated epoxide whose molecule contains 5-16 carbon atoms and has its oxygen atom joined to at least one secondary carbon atom, at an isomerisation temperature of 200-500 DEG C. at a pressure of 150-350 psig. in the presence of hydrogen supplied at 0.5-6.0 hydrogen/cyclic ether molecular ratio with a catalyst consisting of copper on an activated carbon support.  The C5-C16 epoxides preferably have the general formula <FORM:0875856/IV (b)/1> wherein R1 is C1-C4 alkyl, R2 is hydrogen or C1-C4 alkyl or R1 and R2 together form a single polymethylene bridge of 3 or 4 carbon atoms, R3 and R4 are hydrogen or C1-C4 alkyl, and n is 0-3. The catalysts may contain 0.01-20% weight of copper and may be used in a fixed or fluid bed.  The cyclic ether/catalyst space velocity is preferably from 0.1 to 2.5 V/hr./V. In an example 2,5-dimethyltetrahydrofuran is isomerised to 2-hexanone. Specification 798,838 is referred to.
Patent GB-390170-A (GB)
Title: Improvements in or relating to photo-electric control devices for use in electric signalling or control systems
IPC: G08C19/24
Filed: 1931-09-29
Abstract: 390,170. Light-sensitive cells. SCHNEIDER ET CIE, 42, Rue .d'Anjou, Paris. Sept. 29, 1931, No. 27067. Convention date, Nov. 27, 1930. [Class 40 (iii).] In a photo-electric device for use as a transmitter in electric signalling systems or a circuitclosing device in control systems, a. rotating pencil of light co-operates with an annular light-sensitive cell 12.
Patent GB-442202-A (GB)
Title: Improvements in and relating to permanent magnets
IPC: C21D8/12
Filed: 1934-05-01
Abstract: Permanent magnets are made of iron alloys containing 30-35 per cent of nickel, 10-15 per cent of aluminium, and 0,2-2 per cent of silicon, heat treated by heating to 1100-1300 DEG  C., quenching in oil, reheating to 650-800 DEG  C., and cooling in air. Carbon may be present up to 0,15 per cent.
Patent GB-270822-A (GB)
Abstract: 270,822. Ackers, A. E. Feb. 16, 1926. Cooling after grinding.-To prevent caking, icing sugar is cooled after milling and before packing to remove the heat generated in the crushing mill. Air cooling may be employed, the sugar being placed in chambers which may have means for circulating the air. The air may first be dried. Cooling by passage over water jackets may also be used. With large outputs, the sugar may be cooled during continuous con. veyance between the mill and the packing platform. After cooling, the sugar may be dressed or reconditioned by sieving &c. The sugar may be mechanically agitated during cooling.
Patent GB-408238-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H04R31/00
Filed: 1932-09-29
Abstract: 408,238. Loud-speakers. SWIFT, LEVICK, & SONS, Ltd., and HORSBURGH, G. D. L., Clarence Steel Works, Sheffield. Sept. 29, 1932, No. 27108. [Class 40 (iv).] A magnet for loud-speakers &c. is made of portions of magnetic steels, i.e. sheets of high remanence and coercive force, having different properties so that by suitable choice of steel, magnets with different flux densities can be made of pieces of the same shape and size. The magnet shown consists of a piece 3, which may be of cobalt steel, a plate 6 which may be of chrome steel, and a pole-piece 9. The-pole piece 9 may be separated from the piece 3 by a washer 10, which may be of a different steel again. Reference has been directed by the Comptroller to Specification 401,476.
Patent GB-823759-A (GB)
Title: A method of soldering a metal rod in a metal sleeve
IPC: B23K1/012
Filed: 1957-08-28
Abstract: 823,759. Making electric components; soldering. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 28, 1957 [Aug. 28, 1956], No. 27151/57. Classes 83 (2) and 83 (4). In soldering a metal rod in a metal sleeve solder is applied to the rod and sleeve until the outside dimension of the rod is greater than the inside dimension of the sleeve, the rod is forced into the sleeve to provide contacting unoxidized surfaces of the solder, heat is applied to melt the solder and the solder is allowed to cool. In making a crystal rectifier or diode two metal, e.g. " Kovar " (Registered Trade Mark), sleeves 11, 11<SP>1</SP> sealed to a glass cylinder 10 to form a capsule, are first lightly plated with copper and then heavily with tin, e.g. to an inside diameter of 0.074 inch. A metal stud 12 having a lead 13 welded to one end is plated lightly with copper and then heavily with tin, or alternatively is lightly plated with tin and then dipped in lead-tin, to provide an outer diameter of 0.076-0.082 inch. A germanium or silicon die 14 is then soldered to the plated stud. The capsule is placed in a jig 20 and the stud held in a collet 22 by its lead 13 is forced into the sleeve 11<SP>1</SP> to strip off solder from the stud and sleeve to expose clean solder surfaces. The solder is heated by an induction coil 24 and argon is supplied to a hood 25 about the coil and by a pipe 27 to the capsule. A second metal stud 15 plated as described for the first stud and having a tungsten wire 17 and a lead 16 secured at its ends is held in a collet 29 and is pressed into the sleeve 11 of the capsule held by the lead 13 in a collet 28 to strip off solder and expose clean surfaces. The movement is continued until proper contact is obtained between the wire 17 and die 14 determined by test gear 31. Heating of the solder, e.g. in inert gas, may be by induction or by resistance heating obtained by contacting the stud with a carbon rod 34 in circuit therewith. Reducing gas may be used instead of inert gas. Specifications 687,931 and 688,482, [both in Group XXXVI], are referred to.
Patent GB-1139639-A (GB)
Title: Apparatus for degassing liquids and smelts
IPC: B29C48/76
Filed: 1966-06-17
Abstract: 1,139,639. Screw conveyer. WERNER & PFLEIDERER. 17 June, 1966 [20 July, 1965], No. 27181/66. Heading B8A. [Also in Divisions B1 and C7] An apparatus comprises a container (11), the lower part of which conforms with the envelope of interengaging and scraping screw conveyers (23, 23<SP>1</SP>): a liquid or smelt may be introduced at one end of the container (5), conveyed to the opposite end and discharged (8), gases being discharged through vacuum line (9). In operation the liquid or smelt partly fills the container (to level 7) so that continuously renewed thin layers are formed. As shown in Fig. 5, to which the numerals relate, the conveyers rotate in the same direction and the container is jacketed. Other embodiments have up to four worm conveyers of the same or different diameters rotating in the same or opposite directions. The conveyer axes may be inclined to the horizontal.
Patent GB-389879-A (GB)
Title: Improvements in or relating to the manufacture of separable fasteners
IPC: A44B19/46
Filed: 1931-09-30
Abstract: 389,879. Sliding-clasp fasteners. CORNER, G. H. C., Lion Works, Witton, Birmingham, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Sept. 30, 1931, No. 27281. [Class 44.] In the manufacture of sliding- clasp fasteners the individual fastener members are connected together in proper spaced relationship for application to a stringer &c. by wax or soft metal applied by casting or moulding, or by glueing the members to a cardboard &c. strip, or by soldering to a metal wire. The jaws 4, 5 are left free so that they can be compressed in place on the stringer, and the connecting material then removed. When the material is of adhesive character it is sufficient to provide material 7 only between the members, Fig. 4, otherwise a connecting or base portion 9, Fig. 5, is also provided. Specifications 12261/15, 246,850, 280,430, [all in Class 44, Fastenings, Look &c.], and 362,196 are referred to.
Patent GB-1005056-A (GB)
Title: Improvements relating to apparatus for the thermal treatment of continuous material or discrete articles
Inventor: BRITTAIN CHARLES PETER
IPC: C21D9/567
Filed: 1963-07-10
Abstract: <PICT:1005056/C6-C7/1> Metal strip or wire to be heat-treated is passed continuously through a heat exchange system in counterflow to a circulating fluidized bed which provides pre-heating, heating and cooling zones.  The process may also be applied to the treatment of a succession of small articles transported through the system by a suitable conveyer.  As shown in Fig. 1, strip 7 passes through tank 1 in counterflow to the bed 3 which is caused to circulate by means 4. Fluidizing gas is supplied through duct 8 while the bed in zone B is heated by element 2.  If the bed is insufficiently cooled by contact with the strip in the preheating zone cooling means 10 may be incorporated in the circuit.  When treating strip it is desirable to have a downward flow of gas impinging on the upper surface of the strip; this is achieved by dividing the space immediately above the strip by means of baffles 12, 13 into a number of compartments corresponding approximately to the treatment zones.  Shallow downwardly open boxes 15, 16 and 17 are provided in each compartment; air or gases is extracted from these boxes by fans 15c, 16c, 17c, and directed downwardly on to the strip through ducts 15a, 16a, 17a.
Patent GB-159921-A (GB)
Title: Improvements in or relating to soundboards for pianofortes and the like
IPC: G10C3/06
Filed: 1919-11-06
Abstract: 159,921. Allison Pianos, Ltd., and Murdoch, J. A. Nov. 6, 1919. Soundboards for pianofortes and other stringed instruments such as violins are arched by the shrinkage in drying of canvas &c. applied under tension and treated with adhesive. The canvas may be applied in strips and at an angle to the joints of the component boards. Cambered gauging-bars may be used' on the front or back to determine when the required curvature has been reached, being then either removed or fixed permanently. Shaped bars secured to the front or back may constrain the curving effect. The front of the soundboard is varnished as usual.
Patent GB-774913-A (GB)
Title: Improvements in or relating to devices for connecting brush heads to stales
IPC: B25G3/00
Filed: 1954-09-22
Abstract: 774,913. Fixing handles to brooms &c, KING, J. July 7. 1955 [Sept. 22. 1954; Oct. 7, 1954], Nos. 27360/54 and 28863/54. Class 61 A device for connecting a broom head to a handle comprises a collar 20 in which the handle is clamped and a pair of jaws 4. 12 which grip the broom handle round its underside, one jaw 12 rotatable about a pivot 11 being held in operative position by tension springs 16, and an adjustable distance piece. 34.adapted to be held in engagement with the upper surface of the broom head. The split collar 20 is provided with a clamping screw 24 and wing nut. One or both jaws may be provided with teeth 9 spaced to accommodate the bristle tufts between them. Each spring 16 is anchored at one end to the side part 4 of an inverted box-like member the other end of each spring being anchored to the jaw 12. The lower end of the handle engages the distance piece. 34 and holds it in engagement with the head of the broom. In a modification, additional means for holding the distance piece in position comprise one or two screws mounted in the top portion 1 of the box-like member. In another modification, Fig. 6, an attachment 27 composed of sheet metal is provided whereby a mop having prongs 32 may be attached to the device in the manner of a broom head. Two apertures 31 are provided in the flat portion 28 of the member 27 through which the prongs 32 are pushed and clinched over.
Patent GB-165003-A (GB)
Title: Improvements in the lubrication of internal combustion engines
IPC: F01M9/06
Filed: 1920-09-27
Abstract: 165,003. Eaton, C. R. Sept. 27, 1920. Force-feed lubricating. - A lubricating-system for internal-combustion engines comprises dippers 21 on the connecting-rods scooping and splashing oil from arcuate troughs 22 which are supported independently on the upper part of the crank casing. The troughs are supplied with oil by a pump detachably supported by a bracket 51 depending from a transverse bearing-beam in the upper part of the crank casing. The pump also supplies oil directly by pipes 25 to the main crank-shaft bearings 26. The plunger 42 is operated by an eccentric 47, Fig. 2, on the camshaft 46, the bearings of which are formed with helical grooves 71 communicating with cups 73 fixed to the shaft, which receive splashed oil and deliver it to the bearings. The lower section 38 of the crank casing can be removed without disturbing the lubricating-devices.
Patent GB-710843-A (GB)
Title: Improvements in transductor regulators
IPC: G05F1/33
Filed: 1952-10-31
Abstract: 710,843. Magnetic amplifiers. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 31, 1952 [Nov. 7, 1951], No. 27387/52. Class 40 (4) [Also in Group XXXV] In an automatic control system in which a first transductor maintains the output voltage of a rectifier constant until a pre-determined load current is reached when a second transductor maintains the output current constant at that value, the two transductors have cross-connected auxiliary control windings to sharpen the transition from one regulating mode to the other. A mercury arc rectifier 1 is controlled by phase shift of the grid voltage in accordance with the output rectified at 8 of two series connected transductors 10, 11. Each transductor has a reference winding 12, 13, a main control winding 15, 19, an auxiliary winding 24, 23, and is self-magnetized in accordance with output. The winding 15 is energized in accordance with rectifier load current, the winding 19 in accordance with rectifier output voltage. The voltage appearing across each transductor is rectified at 21, 22 and applied to the auxiliary control winding of the opposite transductor. Hence the unsaturated (operative) transductor tends to maintain the saturated (inoperative) transductor in that condition. In a modification, Fig. 2 (not shown), in which the output voltage of a metal rectifier is controlled by a saturable reactor in series with the rectifier input, the two controlling transductors are connected in parallel and their respective currents are rectified and applied to the cross-connected auxiliary control windings. In a further modification, Fig. 3, in which the two parallel connected transductors 47, 48 are directly in series with metal rectifier 49, the self-magnetization is obtained by passing a rectified component of the load current through windings 54, 57, and the switching effect by passing said component through cross-connected auxiliary windings 55, 56. The connections to the main control transductors are supplied from separate windings on a transformer instead of being connected in parallel to a common supply. Their outputs are separately rectified and applied to either a single winding on a further transductor, or, Fig. 5 (not shown), to two opposed windings.
Patent GB-1042086-A (GB)
Title: Prop for use in building construction and system utilising such prop
Inventor: MERRICK KENNETH
IPC: E04G21/26
Filed: 1964-07-02
Abstract: 1,042,086. Screw jacks. AUDAX Ltd., and WATES Ltd. June 18, 1965 [July 2, 1964], No. 27400/64. Heading B8J. An adjustable push-pull prop for positioning a wall panel 20 in the erection of a building is pivoted to a locating member 1 at one end and to a bracket 19 at the other by pins 13. The body 10 of the prop is swivelled at the lower end so that it may be turned by handles 25, a screw-threaded collar 15 co-operating with a screw-threaded spigot 16, Fig. 4 (not shown), to adjust the overall length. The prop may be locked in its adjusted position by a locking collar 26. Two props are usually used to one wall panel.