baber/WOPTO huggingface dataset:
Patent GB-675509-A (GB)
Title: Improvements in or relating to picture viewing devices
IPC: G02B27/22
Filed: 1949-03-18
Abstract: 675,509. Viewing devices. GOWLAND, J. P. March 20, 1950 [March 18, 1949], No. 7446/49. Class 97 (i). [Also in Groups XV and XVII] A picture viewing device comprises a top plate, a bottom plate, a front end-wall plate and a rear end-wall plate, all said plates consisting of cardboard-type sheet material and all being hinged together about parallel edges so as to form a hinged parallelogram structure, at least one viewing aperture in the front endwall plate, means for holding a picture to be viewed substantially in a plane with the back end-wall plate and means for admitting light to said picture, whereby when the parallelogram structure is in its rectangular position, said picture can be viewed through said aperture, or apertures, means being also provided for retaining the structure in such rectangular position. In the form shown, the viewing device comprises a base sheet of cardboard folded to form similar flaps 12, 11 separated by a narrow spine 13. A second piece of cardboard 20 is also folded to form two flaps 21 and 22 separated by a portion 23. Flap 22 is attached to a background cut-out 42 which is folded to form a flap 25 which is glued to the base flap 12; another flap 24 is also formed by folding flap 21 and the flap 24 is glued to the base flap 11 so that part of flap 21 is supported in the plane of the spine 13, when the device is erected, and the portion 23 is parallel to the base flap 12. The flap 21 is provided with spaced apertures 1, 2 and in register with each aperture a lens 26 is mounted; the two lenses, which may be of plastic material, may be moulded integrally with an inter-connecting strip and this strip may be connected to the flap 21. The picture or pictures to be viewed (e.g. a stereoscopic pair) is or are stuck to the inner surface of flap 22 as at 28 and this flap may be apertured at 27 to admit light to the pictures if the latter are transparencies. A piece of cardboard 41, may be secured to the flap 21, to serve as foreground scenery; additional scenery represented by a cardboard piece 43 may be provided, this piece having legs 44 which pass through slots 45 in the portion 23 and are glued to base flap 12. The device may also be formed of a continuous strip of cardboard and may be housed in a collapsable casing.
Patent GB-916941-A (GB)
Title: Improvements relating to caps for screws, rails and the like
Inventor: SMART KENNETH ALLAN
IPC: A47G3/00
Filed: 1960-03-03
Abstract: 916,941. Covers for screws, nails &c. GUEST KEEN & NETTLEFOLDS (MIDLANDS) Ltd. Jan. 25, 1961 [March 30, 1960; Aug. 6, 1960], Nos. 7480/60 and 27350/60. Classes 89 (1) and 89 (2). A cap 33 for the head 30 of a nail, screw, &c. 31 has an internal diameter, at the edge 19, less than the external diameter of the largest part 15 of a ring 32 having a lip 11 engaging beneath the head 30, so that the cap may be sprung over the ring. The cap and ring may be made of nylon.
Patent GB-145157-A (GB)
Title: Improvements relating to apparatus for raising and lowering window blinds, screens and the like
IPC: E06B9/68
Filed: 1919-03-26
Abstract: 145,157. Gledhill, W. March 26, 1919. Roller-blinds.-Relates to apparatus for raising and lowering window-blinds, screens, &c. of the type comprising a multiplying-train of spur-wheels and pinions and a spring for counterbalancing the weight of the blind, and consists in the particular combination and arrangement described. A lever C, mounted on the window-frame, is connected by a rod c' to a rack D which gears with a pinion a" on the slowest wheel a<5> of a train of wheels and pinions, the pinion a' at the other end of the train being connected to the blind-roller B through a coupling comprising a disk a<2> having a hole or holes engaged by one or more pins on the roller. A spring a<7> is so arranged that it is wound up as the blind is lowered, and, in the arrangement shown, one end of the spring is attached to the fixed casing a and the other end to the spindle of the wheel a'. The spring may, however, be connected with another part of the mechanism, such as the rack. The rod c<1> may be let into the window-frame and connected to the rack through a lever. Adjustable stops may be mounted on the rod c<1>.
Patent GB-331814-A (GB)
Title: Improvements in and relating to the prevention of the development of rancidity in vegetable oils
IPC: C08F251/02
Filed: 1929-03-07
Abstract: 331,814. Imperial Chemical Industries, Ltd., and Tattersall, H. J. March 7,1929. Fats and fatty oils.-A method of preventing castor oil from becoming rancid, particularly in connection with the manufacture of leather cloth by means of nitrocellulose, consists in treating the oil with peracetic acid, its substitutes or derivatives. The invention is based on the known fact that certain unsaturated compounds react with peracetic acid to form acetoxy glycollic derivatives. For example, trilinolein in the presence of peracetic acid and under suitable conditions forms 11, 11<1>, 11<11>: 14, 14<1>, 14<11>-hexahydroxy-10, 10<1>, 10" : 13, 13<1>, 13"-hexacetoxy trilinolein which under the influence of oxidizing agents does not give use to n-caproyl aldehyde, one of the evil-smelling constituents of rancid castor oil. It is found to be unnecessary to convert the whole of the oil into the acetoxyglycollic derivative, and only sufficient peracetic acid is added to attack the trilinolein constituent of the castor oil. This " peracetylated castor oil " may be formed by mixing castor oil, 2170 parts; hydrogen peroxide (100 vols.), 37 parts; glacial acetic acid, 92 parts; and concentrated sulphuric acid, 0.78 part. The treatment is not limited to the treatment of castor oil; it may be applied to any vegetable oil containing unsaturated glycerides, for example, linseed oil or cotton seed oil.
Patent GB-1178552-A (GB)
Title: Electrolytic Electrophotographic Process
IPC: G03G5/05
Filed: 1967-02-16
Abstract: 1,178,552. Electro-photographic development. FUJI SHASHIN FILM K. K. Feb. 16, 1967 [Feb. 21, 1966], No. 7543/67. Heading G2H. A photo-conductive layer having an electrically conductive backing is developed during or immediately after imagewise exposure by electrolysis in an aqueous solution of a compound containing at least one CH 2  = C(X) (Y) group (in which X and Y are different radicals) which is polymerized by free radicals produced by the electrolysis whereby the polymer formed is deposited imagewise on the layer. The polymerizable compound may be acrylonitrile, acrylamide, acrolein, acrylic acid, polyethylene glycol dimethacrylate or glycerol diacrylate. The electrolyte may also contain a polar solvent (e.g. acetone or methanol), a salt (e.g. Na Cl) to increase conductivity, a thermal polymerisation inhibitor (e.g. hydroquinone or its monomethyl ether), a free radical source (e.g. Fe Cl 3  or a cerium salt) and/or a compound (e.g. triphenyl tetrazolium chloride) which yields a formazone dye on electrolytic reduction. The electrolysis may be effected in an electrolytic bath, using a brush, sponge, gelatine film or porous paper. A plate which is wetted imagewise by aqueous and oleophilic inks is obtained by forming an image of hydrophilic resin on a layer of zinc oxide in a hydrophobic resin binder.
Patent GB-345473-A (GB)
Title: Improvements in methods of and machines for threading the tube-frames for use in axminster looms
IPC: D03D39/06
Filed: 1930-03-10
Abstract: 345,473. Operating clutches. SMITH & SONS CARPET CO., A., Elm Street, Yonkers, New York, U.S.A.-(Assignees of Thomas, J. ; 111, Yonkers Avenue, Yonkers, New York, U.S.A.) March 10, 1930, No. 7720. Convention date, April 17, 1929. [Class 80 (ii).] A clutch 90 driving a shaft 85 through gearing 86 is disengaged when the shaft 85 has completed a revolution. The clutch lever 92 is pivoted on a block 95 which can turn about a vertical axis to bring the lever end 94 into and out of the path of the end of a bar 93 secured to the shaft 85. At starting the lever end 94 is moved laterally away from the rod 93 by the starting handle 96 when the spring 91 closes the clutch 90. Before the shaft 85 has made a revolution a cam 82 it carries engages the arm 97 of the lever 92 and moves the arm 94 into the path of the rod 93 which opens the clutch when the shaft 85 has completed a revolution.
Patent GB-129240-A (GB)
Title: Improvements in Motor Vehicles.
IPC: B62D53/06
Filed: 1918-07-06
Abstract: 129,240. Hugh, P. G., and Scammell & Nephew, G. July 6, 1918. Springs, arrangement of. -A six-wheeled motor-vehicle has a motor chassis m supported on rear springs y<1> rotatably mounted on the driving-axle j similarly mounted on vertically-alined springs y carrying the lower member h of a turntable whose upper member k is secured to the load carrying body l,
Patent GB-235959-A (GB)
Title: Improvements in electrically driven clocks
IPC: G04C11/00
Filed: 1924-03-26
Abstract: 235,959. Prince, C. E. March 26, 1924. Electric clocks.-An electric clock with gaining rate is automatically stopped or slowed down at half-minute &c. intervals and restarted or controlled by impulses from a master clock. The resistance. 8 in the motor circuit is normally short-circuited by a relay 12. the circuit of which is broken bv the cam 5 at half-minute intervals throwing in the resistance 8 and slowing the motor. Contact is also broken at the relay 11 which break is short-circuited by the relay 14 when actuated by a. periodic impulse from the master clock resulting in closing contacts 11 and 12 and speeding up of the. motor. The momentum of a fly-wheel may be used to continue the broken. movement of the motor if the circuit thereof is
Patent GB-565683-A (GB)
Title: Improvements in razor blade holders
IPC: B24D15/10
Filed: 1943-05-17
Abstract: 565,683. Sharpening razors. WINTER, sen., J. H., and WINTER, jun., J. H. May 17, 1943, No. 7782. [Class 60] A holder for thin razor blades, to enable a blade to be sharpened on a strop, comprises a length of metal of semicircular cross-section doubled on itself to form two arms 1, 2 united by a loop 3 ; the arms are bent outwardly at 5 and on the arms is threaded a washer 4. The blade B is placed between the arms 1, 2 and is held by sliding the washer on to the bent parts 5, the device being held by a handle formed by bent parts 6 of the arms 1, 2. In a modification, the handle is formed by mounting on the arm 2 a handle 7 of wood or other material ; in this form, the arm 1 only is bent at 5. The diameter of the parts 1, 2 is chosen to give the correct stropping angle to the blade edge.
Patent GB-1486747-A (GB)
Title: Photographic still cameras and cinematographic cameras
IPC: G03B13/14
Filed: 1976-02-27
Abstract: 1486747 Camera mechanisms EASTMAN KODAK CO 27 Feb 1976 [28 Feb 1975] 07842/76 Heading G2A In a camera having a view-finder which can be extended into an operative position, the viewfinder in this position is linked to the focusing movement of the taking lens for corresponding parallax adjustment, Fig.1 shows the view-finder 6 in the extended, operative, position, from which it can be pushed into the camera housing 1 when non-operative. The view-finder has a front lens 7, eye-piece 9, and a mirror frame lens 8 which is movable. A control lever 4, pivoted to the camera housing by a pin 13, has one end 4c which engages the mount of taking lens 2, and its other end 4b projects into the view-finder housing. The mirror frame lens 8 carries pins 8a which engage in inclined slots 10a, so that the lens 8 can pivot and slide in these slots. A spring 11 urges the lens 8 downwards into contact with the lever end 4b. When lens 2 is moved axially for focusing adjustment, a corresponding movement is imparted to lens 8, and the dimensions of lever 4 are such that this movement of lens 8 compensates for parallax. When viewfinder housing 6 is retracted into the inoperative position, Fig. 2 (not shown), the frame lens 8 rides up an inclined part 12b of a film cartridge chamber 12, so disengaging from lever 4.
Patent GB-872303-A (GB)
Title: Improvements relating to trench excavators
Inventor: BROCKLEBANK NORMAN
IPC: E02F3/42
Filed: 1958-03-11
Abstract: 872,303. Shovel excavators. PRIESTMAN BROS. Ltd. June 9, 1959 [March 11, 1958], No. 7858/58. Addition to 735,116. Class 68(1). Rotation of a pivot 17, rotatably mounted in the sides of an excavator scoop to connect the scoop to an eye bolt of adjustable length positioned in the end of one of the arms 57 pivotally supporting the scoop from the boom of the excavator, causes oppositely threaded portions of the pin to move the serrated faces of nuts mounted on the threaded portions of the pin into or out of engagement with serrated faces on the end of the arm. Thus after the length of the eye bolt has been adjusted by the worm wheel drive in the arm 5 further adjustment is prevented by the nuts locking the pin to the eye bolt.
Patent GB-579654-A (GB)
Title: Improvements in or relating to magnesium base alloys
IPC: C22C23/02
Filed: 1943-05-18
Abstract: 579,654. Alloys. MAGNESIUM ELEKTRON, Ltd., and FISHER, A. May 18, 1943, No. 7892. [Class 82 (i)] Magnesium base alloys intended for extruding, forging, or rolling operations have the following composition, aluminium 3.5-5 or preferably to 4.5 per cent ; zinc 0.2-0.7 per cent ; manganese 0.1-1.0 per cent; other elements, viz.: tin, cadmium, silver and/or cerium in total less than 1.0 per cent or preferably less than 0.75 per cent, the remainder being magnesium. These alloys exhibit good mechanical properties and corrosion resistance, and are free from defects resulting from microporosity.
Patent GB-307798-A (GB)
Title: Process for the production of amines from organic acids and their anhydrides
Filed: 1929-03-11
Abstract: 307,798. Knoll Akt.-Ges. Chemische Fabriken, and Schmidt, K. F. March 18, 1928, [Convention date]. Amines are prepared from organic acids or anhydrides of organic acids, by treating with hydrazoic acid in the presence of sulphuric acid. The following examples are specified : (1) Aniline is prepared from benzoic acid and benzylamine from phenylacetic acid by treating with hydrazoic acid in presence of sulphuric acid and chloroform. (2) Tetramethylene- and pentamethylenediamine are similarly prepared from adipic acid and d-leucine respectively and isolated as benzoyl compounds. (3) Methylamine is obtained from acetic anhydride as in example 1. Specifications 176,038, 250,897 and 252,460 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the preparation of amines from derivatives of organic acids in general in the presence of catalysts. In examples : (1) aniline is prepared from benzoic acid ethyl ester, (2) benzoyl chloride is treated with hydrazoic acid, chloroform and tin tetrachloride and the resulting phenylisocyanide is converted into aniline bv means of caustic potash. This subject-matter does not appear in the Specification as accepted.
Patent GB-697403-A (GB)
Title: Improvements in or relating to the reduction of reflection from the surface of an article
IPC: C03C17/34
Filed: 1951-04-06
Abstract: 697,403. Reducing surface reflection. VOGT, A. April 6, 1951 [April 8, 1950], No. 8069/51. Class 97 (i). In the reduction of surface reflection from an article by the application of a number of thin interference layer at least one layer is of an oxide of a rare earth having an atomic number between 58 and 71 inclusive, or of lanthanium, scandium or yttrium. Preferably cerium oxide is used and is deposited by thermal evaporation in vacuo.
Patent GB-1024052-A (GB)
Title: Improvements in and relating to pipe joints and connections
IPC: F16L37/04
Filed: 1962-03-01
Abstract: 1,024,052. Pipe connectors. H. W. FUTTER, and B. GOLDSMITH. Jan. 25, 1963 [March 1, 1962], No. 8086/62. Heading F2G. A pipe connector, over which is fitted a flexible pipe or tube 5, is of cylindrical shape and has a stepped portion, forming a sharp edge 4, leading to a cylindrical portion of reduced diameter. The body portion of larger diameter 1 has a roughened annulus which may be situated adjacent the step 4 as shown at 6. The body portion may have more than one step. The head 2 of the convector, as shown, is an internally threaded cap secured to the body portion, but may be a loose threaded collar engaging a conical nose of the body portion.
Patent GB-557988-A (GB)
Title: Device for regulating the flow of air or gas through an aperture
IPC: F24F11/75
Filed: 1942-06-12
Abstract: 557,988. Valves; ventilators. FITZMAURICE, R. June 12, 1942, No. 8094. [Class 135] Also in Group X] A valve device particularly adapted for insertion in a ventilating opening in a wall is adapted to be moved towards its closed position by fluid flow in either direction. The device comprises a box-like structure 1 adapted to be built into a wall and is formed with inwardly flanged inlet and outlet openings 4, 5. The valve member comprises two inwardly flanged cylindrical segments 11, 12 rotatably. mounted on a transverse axle or trunnions 8. The segment 11 is fitted with a radial vane 13 and a fixed baffle 14 formed with a trough 15 below the vane is arranged to cause air flowing between openings 4 ... 5 to impinge on the vane and move the valve member against the action of a weighted arm 9 so that one or other of the segments partially closes the opening 4. The segment 11 may be arranged to co-operate with the opening 5 or both segments may be duplicated.
Patent GB-659279-A (GB)
Title: An improved device for restraining cattle against aggressive attack
IPC: A01K15/00
Filed: 1949-03-24
Abstract: 659,279. Harness. WHITBY, E. H.. (trading as SAFETY BULLMASK CO.). March 24, 1949, No. 8104. [Class 62] In a vision-restricting cattle mask of the kind described in Specification 191,928, [Class 62], the fixing harness comprises adjustable side straps 40, 41 which connect. a neck strap 17 to the mask side wings 7, 8. As shown, the mask is formed with integral side wings from pressed or moulded aluminium or aluminium alloy with the front strengthened by corrugations. The neck strap is attached to the top of the mask by a Y-shaped arrangement 24 comprising a pair of adjustable straps 25, 26 extending from a looped portion 23, the straps passing over a rounded edge portion 9 and through slots 10, 11. An adjustable snout strap 19 is attached to the neck strap by a strap loop 21 and passes through slots 13 at the base of the mask, an alternative strap position being provided by slots 12. A ventilation hole 16 is provided in the centre of the mask and protective pads 30, 31 consisting of sorbo rubber backed with leather are supported by the snout strap and the straps 25, 26. The mask may be fitted to either horned or hornless animals.
Patent GB-553866-A (GB)
Title: Electron discharge apparatus
IPC: H01J25/32
Filed: 1941-06-27
Abstract: 553,866. Electron oscillators. STANDARD TELEPHONES & CABLES, Ltd. June 27, 1941, No. 8105. Convention date, July 5, 1940. [Class 39 (i)] In higher frequency electron oscillators of the type in which the oscillations are generated by the interaction of an electron beam with the electric field in a hollow resonator the resonator 7, Fig. 1, has a gap 8 bounded by plates 3, 4 sealed through the envelope 5, and the cathode 1 and collecting electrode 2 are maintained at a potential negative to the plates 3, 4 so as to produce accelerating fields directed towards the gap, which is of such a length that the electron transit time across it is less than half the oscillating period of the resonator. The potentials are adjusted so that, in a uniform electron stream, those electrons that traverse the gap during one phase of the oscillating field therein are accelerated and reach the collecting electrode 2, while those that traverse the gap during the opposite phase are retarded and are caused to oscillate to and fro across the gap, giving up energy to the resonator at each traverse, until they are collected by the plates 3, 4. In another method of operation, the density of the stream is modulated by a device of the velocity modulation type, in which case the whole of the stream may be caused to oscillate across the gap. An arrangement for producing an axially uniform accelerating field between the plates 3, 4 and the cathode 1 and collecting electrode 2 is shown in Fig. 2 and comprises sleeves consisting of two interleaved parts 3, 5 and 4, 6 insulated from each other. Focusing is obtained by establishing a suitable potential difference between the cathode and the sleeve part 5. A modification, Fig. 3 (not shown) comprises two systems as shown in Fig. 2, arranged in series, the first acting to velocity modulate the beam, and the second to utilize the subsequent beam density modulation.
Patent GB-285269-A (GB)
Title: Improvements in or relating to legee or button-hole twist
IPC: A41F1/02
Filed: 1927-03-24
Abstract: 285,269. Heggie, W., and Heggie, D. March 24, 1927. Threads.-Legee or buttonhole twist to be used with garments made of fabrics of different shades or colours, instead of being self coloured, is formed by twisting together a number of strands of different shades or colours corresponding to or within the range of the differently coloured or shaded garments with which the button hole twist is used. The number of different twists required by manufacturers to match the different shades of fabrics used in the garments is thus reduced.
Patent GB-563646-A (GB)
Title: Improvements in or relating to pneumatically actuated electric circuit interrupters
IPC: H01H33/32
Filed: 1943-02-18
Abstract: 563,646. Air-break switches ; actuation of switches. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 18, 1943, No. 8177/44. Convention date, Feb. 18, 1942. Divided out of 563,641. Drawings to Specification. [Class 38 (v)] A circuit-interrupter, which may be of the character described in Specification 553,714, and a series disconnect switch are operated by pneumatic motor means in a predetermined sequence, and dump valves are provided in the motor means and actuated by the compressed gas itself, to exhaust gas from the opposite side of the motor means when the gas is admitted to the one. side, thereby obtaining prompt reversal of the motor means when operation in one direction is immediately followed by operation in the other direction; that is, for trip-free, release or automatic reclosure. The invention is described in its application to the switching arrangement disclosed in Specification 563,641. Specification 563,642 also is referred to.
Patent GB-577477-A (GB)
Title: An improvement in and relating to taps or cocks
IPC: F16K35/02
Filed: 1944-05-03
Abstract: 577,477. Valves. WRIGHT, F. A. May 3, 1944, No. 8331. [Class 135] A locking device for preventing accidental movement of a rotary plug valve, comprises a sliding catch member G in a transverse slot in the plug member adapted to engage in a notch F in the valve body. The catch is withdrawn to enable the valve to be opened by pressure on a spring-loaded pivoted lever H, the lower end of which engages the catch member G.