baber/WOPTO huggingface dataset:
Patent GB-768940-A (GB)
Title: Improvements relating to freezer trays
IPC: F25C1/24
Filed: 1955-05-25
Abstract: 768,940. Ice making. GENERAL MOTORS CORPORATION. May 25, 1955 [June 15, 1954], No. 15073/55. Class 29 A grid for freezing tray has two upwardly convergent longitudinal walls 21 passing through apertures 24 in a plusality of transverse movable walls 23 and surmounted by slidable bars 22 having notches 41 into which the transverse walls 23 engage, movement of the transverse walls and release of the ice blocks being effected by motion 'of the slidable bars 22. The invention resides in the provision of widened sections 26 at the top of apertures 24 into which the bars 22 fit and ar held in position by clips 44 on one end transverse wall 23 and by operative links 38 on the other. One end of each of the longitudinal walls is raised for the reception of a pin 34 about which pivots a handle 35 having side flanges 36 through which passes a second pin 37. At the ends of the pin 37 are pivoted links 38 each notched to fill the space in apertures 24 in the end transverse wall after the longitudinal walls have been inserted and to engage the end transverse wall. The grid operates as does that described in Specification 739,636 [Group XII].
Patent GB-128917-A (GB)
Title: Improvements in Aeroplane Motor Fuel.
IPC: C10L1/02
Filed: 1919-06-16
Abstract: 128,917. U.S. Industrial Alcohol Co., (Assignees of Backhaus, A. A.). June 25, 1918, [Convention date]. Motor spirit intended particularly for aeroplanes consists of methyl, ethyl, butyl, or other alcohol, of at least 98 per cent strength, gasolene, naphtha, or other petroleum distillate, and benzol, toluol, or other aromatic hydrocarbon except turpentine. The prior use of a mixture of benzol, alcohol of 95 per cent strength, and a petroleum distillate, and of a mixture of benzine, turpentine, and alcohol of 99 per cent strength is acknowledged.
Patent GB-469785-A (GB)
Title: Improvements in or relating to rolls specially suitable for use in paper making machines
IPC: D21F3/08
Filed: 1936-05-29
Abstract: 469,785. Press rolls of paper-making machines. MILLSPAUGH, W. H. May 29, 1936, No. 15226. [Classes 42 (ii) and 96] [Also in Group XXII] A press roll, resistant to flexure, for use in a papermaking machine, e.g. with a large dryer drum comprises a centrifugally-cast shell a of carbon- or alloysteel, which may be thickened at the middle with ends b welded, shrunk or bolted in, and a non-rusting covering f, e.g. of rubber, Stonite (material as disclosed in Specification 363,025), bronze, &c. A roll 244 x 28 ins. weighs 7 tons.
Patent GB-1068402-A (GB)
Title: Cathode-ray tube signal recording apparatus
IPC: G03G15/32
Filed: 1965-04-09
Abstract: 1,068,402. Cathode-ray tubes. CREED & CO. Ltd. (International Telephone and Telegraph Corporation). April 9, 1965, No. 15236/65. Heading H1D. [Also in Division G2] A cathode-ray printing tube has a fibreoptic faceplate 24 bearing on the inner surface a phosphor layer 26 and an aluminium layer layer 28 and on the outer surface a transparent conductive layer 29 and a photoconductive layer 27. A paper tape 32 is run across the photoconductive layer and acquires a charge pattern corresponding to a light image generated in the phosphor layer by the cathode-ray, a suitable voltage being applied between the transparent conductive layer 29 and the roller 30. The paper may be charged, or previously charged paper discharged, in the process. The cathode-ray tube is of flattened cross-section with the cathode-ray providing scanning in one dimension and the moving tape in the perpendicular dimension. Metallic islands may intervene between the photoconductive layer and the tape to reduce abrasion by the latter.
Patent GB-446610-A (GB)
Title: Improvements in or relating to joint means for timber
IPC: E04B1/49
Filed: 1935-05-25
Abstract: 446,610. Dowel plates. BOORMAN, G., and PERKINS, J., (trading as BOORMAN & PERKINS), 13, Rolleston Road, Croydon. May 25, 1935, No. 15305. [Class 89 (ii)] [See also Group X] A metal plate which is inserted into sawcuts in the abutting faces of wood pieces to join them together, and also to serve as a water bar at the joint, has a base 16 and side flanges 18 which converge towards the rear end, and increase in height from the entrant end to the rear. The front ends 22 of the flanges may be sharpened. The base 16 extends beyond the flanges and is pointed as at 20 or otherwise shaped to facilitate insertion. The plate which is preferably of mild steel is made by bending the flanges up from flat stock.
Patent GB-581254-A (GB)
Title: Improvements in or relating to the production of organic fluorine compounds
IPC: C09K5/08
Filed: 1944-08-11
Abstract: Halofluoroalkanes are prepared by reacting in the presence of a Friedel-Crafts catalyst, a halogenated methane containing at least three halogen atoms but no fluorine, with a halogenated ethylenic compound having at least one atom of chlorine attached to one of the doubly-bonded carbon atoms, said ethylenic compound also containing at least one fluorine atom.  Thus, ethylenic compounds having the general formula RR1C=CR2X, where R, R1 and R2 are hydrogen, fluorine, chlorine, alkyl or chlorinated or fluorinated alkyl, at least one of these substituents being fluorine or fluorinated alkyl and X is chlorine are operable in this process.  Reaction temperatures up to 150 DEG  C. may be used though preferably normal or slightly elevated temperatures are used, in general from 15 DEG  to 100 DEG  C.  The preferred catalyst is aluminium chloride though other Friedel Crafts catalysts such as boron trifluoride, zinc chloride or ferric chloride may be used.  The products may be isolated by destroying the catalyst, as by decomposition with ice or cold water, followed by distillation.  Specified ethylenic compounds employable in the process are 1,2 - dichloro - 3 - trifluoro - 1 - propene, 1,1,2 - trichloro - 3 - trifluoro - 1 - propene, 1 - dichloro - 3 - trifluoro - 1 - propene, 1,1,3,3,3 - pentafluoro - 2 - chloro - 1 - propene, asym.-difluorodichloroethylene, sym.-dichlorodifluoroethylene, and trifluorochloroethylene.  In examples: (1) chloroform and trifluorochloroethylene were reacted in the presence of aluminium chloride in a silver-lined high-pressure tube at 50 DEG  C. and from the reaction products, tetrachlorotrifluoropropane and pentachlorodifluoro propane were recovered; (2) trifluorochloroethylene and carbon tetrachloride were reacted in the presence of aluminium chloride yielding pentachlorotrifluoropropane and hexachlorodifluoropropane.  The products may be used as petroleum chemicals, dialectric fluids and cooling liquids.  Specification 570,470 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the reaction of a halogenated methane containing at least three halogen atoms with a halogenated ethylenic compound having at least one atom of halogen other than fluorine attached to one of the doubly bonded carbon atoms and containing at least one fluorine atom, while in the formula given above, R, R1 and R2 may be any halogen or halogenated alkyl and X may be halogen. This subject-matter does not appear in the Specification as accepted.
Patent GB-795626-A (GB)
Title: Power-driven screw-driver and a screw dispenser
IPC: B25B23/04
Filed: 1956-05-17
Abstract: 795,626. Screwing-up screws. ESLICK ASSOCIATES, Inc. May 17, 1956 [May 26, 1955], No. 15368/56. Class 83 (3). [Also in Group XXX] Means for conveying, dipensing and driving screws 25 comprises a power-operated screwdriver 45 having a pair of bit elements 47a, 47b movable relatively to each other in the longitudinal direction of the screwdriver and sprung apart at their free ends, means 81 yieldably projecting the free end of element 47a beyond that of element 47b, and means 31 to force the element 47a into the slot of the screw when the screwdriver is forced against the screw. The dispenser 12, from which the screws are picked up by the rotating bit of the screwdriver, which is driven by a flexible shaft 51 from an electric motor 50, is pivotally mounted on a bolt 14 between the arms 15 of a support 11, a spring 17, Fig. 4, urging the dispenser towards its raised position. Screws from a hopper 40 are fed along a jigging-conveyer 39, Fig. 3, to a stop 24 at the pick-uppoint between the adjustable and non-adjustable guides 23, 22 of the dispenser. The hopper is supported and vibrated by a spring-strip 44 connected to the casing of an electric vibrator 43 which is mounted on the dispenser, and the conveyer is adjustably supported by brackets 35, 36 from a plate 30 on the dispenser. The screwdriver has a socket 61 driven by the rotating core 51a of the shaft 51 and a hollow shaft 46, in which the bit 47 is retained, against the influence of a spring 73, by a pin 72 which engages a recess 71 in a bit-carrier 80. A pin 75 in the carrier engages a hole 76a in the bit element 47b and a slot 76 in the element 47a, retaining the bit in the carrier against the influence of a spring 81. A sleeve 85, with a spring 85a acting between a collar on the shaft 46 and a shoulder in the sleeve, preferably surrounds the shaft. To pick up a screw, the sleeve 85 is engaged over the head of the screw and, upon depressing the screwdriver, guides the rotating bit element 47a into the slot 25a in the screw. Further depression pivots the dispenser about the screw 14, causing a plate 31, adjustably mounted on the plate 30 by screws 32, 33, Fig. 1, to apply laterial pressure 57, Fig. 6, to the sleeve 85 and thereby force the bit elements 47a, 47b together and allow the shorter element 47b to enter the slot 25a in the rotating screw. The adjustable guide 23 is controlled by a screw 21, and the motor 50 and vibrator 43 by a pedal 97.
Patent GB-418963-A (GB)
Title: Indeformable wooden framework for doors and wooden constructions in general
IPC: E06B3/70
Filed: 1934-05-23
Abstract: 418,963. Doors, windows, and panels. GIUSEPPE & CO., C., 409, Via Nizza, Turin, Italy. May 23, 1934, No. 15386. Convention date, June 8, 1933. [Classes 20 (iii) and 20 (iv).] Door, window, and other frame members of wood composed of battens a glued together with the grain of the wood differently directed for each batten have the battens discontinuous with small gaps b which are arranged at different distances from an end. The interior of the frame formed by mortising or otherwise joining these members may be filled with trellis or a cellular wood structure having communicating holes c<1> between the cells and supporting panelling.
Patent GB-1103911-A (GB)
Title: Improvements in or relating to three-phase and single-phase induction motors
IPC: H02P1/38
Filed: 1965-04-12
Abstract: 1,103,911. Pole-changing induction motors. E. WUEST. 12 April, 1965 [13 April, 1964], No. 15410/65. Heading H2A. A single or polyphase, pole - changing induction motor employs separate windings 1, 2 for the respective pole-numbers connected in series, the dominant one (2) being shorted out by switch to change the pole-number to that of winding 1. Means, including an electronic element, a capacitor, choke, or resistance, are provided to reduce the voltage on highspeed winding 1 during the switching action. Winding 1 is designed for full line voltage, but winding 2 is designed for a lower voltage. The voltage-reducing device may include a speedcontroller.
Patent GB-124150-A (GB)
Title: Non-return Valve.
Inventor: ALEXANDER WILLIAM
IPC: F16K15/02
Filed: 1918-09-24
Abstract: 124,150. Alexander, W. Sept. 24, 1918. Check lift valves. - In a non-return valve of the type comprising a lifting disk with radial guide-fingers, the casing comprises a two-part portion including tubular extensions E, F and having hexagonal or other nut-shaped portions M, N to facilitate screwing the two parts together, as shown. The guide-fingers P slide in the outlet portion and act as a stop in conjunction with a projecting part S. To prevent the valve from being misplaced when the casing is disconnected, the outlet portion E is fitted with a screwed retaining-ring R.
Patent GB-195553-A (GB)
Title: Improvements in or relating to paper machine or "fourdrinier wires" used on paper-making machines
Filed: 1922-06-02
Abstract: 195,553. Green, W. D. T., and United Wire Works, Ltd. June 2, 1922. Wire cloths. -The seam or joint of a Fourdrinier wire is strengthened, and its friction on the suction boxes and rollers is reduced, by stitching or otherwise securing one or more wires A on either or both sides of, or across, the seam G, on the underside of the wire.
Patent GB-182653-A (GB)
Title: Improvements in or relating to transmission gear for motor propelled vehicles
IPC: F16H15/12
Filed: 1921-06-04
Abstract: 182,653. Wilkerson, J. S. June 4, 1921. Variable-speed friction gearing of the kind in which two discs connected to the road wheels of a motor vehicle are arranged face to face and are driven by two discs on a common shaft comprises means for clutching one driving disc at a time to the driving shaft for forward and reverse speeds. The propeller shaft 5 carries loose discs 1, 2 which can be clutched to it, one at a time, by a double clutch 10, and which are pressed together to engage the peripheries of two driven rollers 11, 12, sliding on independent shafts or axles 14. As the rollers rotate in opposite directions they are connected to the road wheels through external gearing 17 and internal gearing 18 respectively. The speed is varied by sliding the rollers on their shafts by means of a threearmed lever 26 connected to the operating mechanism and to the two rollers through rods 24 and arms 23. The driving discs are pressed together by a compression spring 33 acting on levers 31 connected to the discs, this pressure being relieved when changing speed by means of two levers 34, 35 connected by a link 39 and acting on the levers 31. The gearing may be enclosed in the. rear axle casing, as shown, or may be arranged towards the middle of the chassis, the road wheels then being driven through belt gearing. In a modification, the rollers may be on the driving shaft and may engage between the driven discs.
Patent GB-116215-A (GB)
Title: Improved Method and Apparatus for Forging Shells.
Inventor: CHESTER CHARLES
IPC: B21K1/00
Filed: 1917-10-25
Abstract: 116,215. Chester, C. Oct. 25, 1917. Billet-piercing; dies.-In piercing shell billets, the punch is centred by a guiding-ring placed on the die. The die 12 has a. tapered recess 13 to receive the billet which fits the die at the bottom, is contained in a holder 11 secured to the platen of a press, and is surrounded by a strengthening-ring 14. On its upper face is an annular projection 15 which fits into an annular groove 16 in the guiding-ring 17. This ring is bored to fit the billet, counterbored below, and has a central aperture to guide the punch. Secured to the holder 11 is a stripper 24. The guiding-ring has a handle by which it is placed in position and removed.
Patent GB-670297-A (GB)
Title: Improvements in or relating to reamers
IPC: B23D77/02
Filed: 1949-06-10
Abstract: 670,297. Grinding. FRYE, J. June 7, 1950 [June 10,1949], No. 15538/49. Class 60. [Also in Group XXII] The detachable blades A of a reamer are ground with curved relief Y along the entire length of each blade, including the tapered entry end E, by mounting them in a holder F having slots G whose centre-lines are offset from the centre of the holder and the ground blades are then mounted in radial slots in the adjustable reamer D. The blades are stated to be ground in a cylindrical grinding machine at one setting and at one time.
Patent GB-904101-A (GB)
Title: An electric system for the successive measurement and the simultaneous checking of a plurality of quantities
IPC: G08C15/06
Filed: 1959-05-06
Abstract: 904,101. Electric measuring systems. BUISSON, P. May 6, 1959, No. 15548/59. Class 40 (1). [Also in Group XXXVI] Apparatus for the measurement of a series of variables each converted to a proportional voltage comprises a mechanical or electronic cyclic switch which samples each voltage in turn while reducing the others to zero, and displays the magnitudes on a CRO together with reference values. As shown (Fig. 1), a linear displacement is measured by the corresponding displacement of the moving electrodes of a differential capacitor connected in a bridge circuit, whose unbalance voltage is fed to the grid G1 of a triode-heptode valve H. The triode section is connected as an oscillator, feeding both the bridge and grid G3 of the heptode section. Due to the double modulation in the heptode, both the AC component of its anode current and the average value of the anode current are independently proportional to the displacement to be measured. A series of such units, having a common load resistor, may be sampled frequentially, using a rotating switch which applies a blocking voltage at B cyclically to all the units but one, whose output signal, A.C. or D.C. is fed to a CRO whose time base is synchronized with the rotating switch. An alternative, electronic switch utilizes the output from the time base of the CRO to produce a sequence of blocking voltages from a flip-flop circuit associated with each transducer unit. The fly-back trace NR (Fig. 5), of the CRO may be set to indicate zero test voltage UR, and the amplification of each transducer unit adjusted by potentiometer P to produce the same maximum and minimum limiting values U MAX,  U MIN  for all the test voltages, the limits being shown on the CRO by horizontal lines, or coloured bands, or by making the flyback voltage sequentially UR, U MAX , U MIN . The test voltages may represent a number of parameters in an aircraft, and may be recorded and/or transmitted by radio to ground, together with the reference voltages. Specifications 604,382, 764,893 and 768,723 are referred to.
Patent GB-385209-A (GB)
Title: Improvements in mounting for rock drills
IPC: E21B19/081
Filed: 1932-06-02
Abstract: 385,209. Rock-drill supports. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Ingersoll-Rand Co. ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) June 2, 1932, No. 15621. [Class 124.] A rock-drill cradle is adapted for taking a handled drill by providing it with a saddle S sliding by ribs T in the cradle and formed with a recessed lug Z to take the cross handle R of the drill. A nut carried by the saddle engages the feed screw p. In order to ensure the retraction of the drill a hook d is formed on the back head and is adapted to be engaged by a rib g on the saddle if the drill sticks on withdrawal.
Patent GB-1099998-A (GB)
Title: Process and apparatus for control of micro-organisms in process streams
IPC: D21H21/36
Filed: 1965-04-13
Abstract: The growth of micro-organisms in aqueous process streams is controlled by the continuous addition thereto of an N-monochloro- or N,N-dichloro-sulphamate prepared in situ in the stream to be treated by mixing solutions of the corresponding sulphamate and a hypochlorite and allowing them to react therein. According to the proportions of the reagents used, the resulting solution contains N-monochlorosulphamate together with varying proportions of N,N-dichlorosulphamate.  A suitable apparatus automatically controlled by the oxidation potential is described. Aqueous process streams which may suitably be treated include paper coating compositions containing starch or casein, raw water supplies, industrial wastes and sewage treatment plant effluents. missing page 270
Patent GB-1165103-A (GB)
Title: Timepiece
IPC: A41D19/00
Filed: 1968-04-01
Abstract: 1,165,103. Watch fastening. MONTRES AROLA S.A. 1 April, 1968 [31 March, 1967], No. 15658/68. Heading A3H. [Also in Division E2] A watch 4 is positioned on the back of a person's hand within an area defined by two lines 7, 8 lying within the extension of the thumb and index finger by fastening means which may consist of pieces of material 2, 5 attached to a glove 1 and watch 4 respectively. Material 2 has a surface consisting of numerous coils 3 having a felt like appearance and material 5 has a surface consisting of small plastics hooks 6 which interlock firmly with coils 3 when pressure is applied. In a modification, Fig. 4, three straps are -attached to the watch at 120 degrees from one another. Straps 12, 13 pass round the thumb and strap 14 passes across the hand and is attachable to the other two straps.
Patent GB-1087941-A (GB)
Title: Process and apparatus for separation by fractional crystallization
Inventor: FLEISCHER JURGEN
IPC: G01N25/14
Filed: 1965-04-13
Abstract: 1,087,941. Centrifugal strainer separators. FARBENFABRIKEN BAYER A.G. April 13, 1965 [April 16, 1964], No. 15735/65. Addition to 1,091,894. Heading BID. Apparatus for the continuous separation of crystals, which melt without decomposition, from a mixture of the crystals and their mother liquor by fractional crystallisation, comprises a centrifuge 2 provided with an axial inlet aperture 3 for the mixture, filtering means 4 extending radially from a position near to the axis to a separating zone 5 which extends radially from the outer extremity of the filtering means to heating means 6 near the periphery of the centrifuge, and means 7 for removing part of the now-melted crystals from the vicinity of the heating means when the latter and the centrifuge are energised, the radial distance b from the edge of the inlet aperture to the outer edge of the filtering means being so chosen that the centrifugal force acting on the already-filtered mixture is greater than that acting on the small quantity of mother liquor entrained in the separating zone. The centrifuge shown is a single hollow body. The apparatus of Fig. 2 (not shown) is stellate in plan and comprises three horizontal hollow cylinders disposed at angles of 120‹ to one another and having a common inlet aperture.
Patent GB-1048506-A (GB)
Title: Improvements in or relating to excavator assembly-supporting base structure
IPC: E02F5/00
Filed: 1965-04-13
Abstract: 1,048,506. Floating excavators; warping. E. VINKE. April 13, 1965, No. 15746/65. Headings B7A and B7V. [Also in Division E1] An excavator assembly-supporting base structure for allowing of excavation by the assembly in swampy ground is such that it can float on and move through water or can slide over swampy ground when advanced by power means on the structure hauling on a fixed cable and is guided in a straight line through the water or over the ground by guide surfaces formed on the underside of the structure. Preferably the guide surfaces are formed by one or more longitudinally extending keels on the flat bottom of the structure, which may comprise a central portion of rectangular section and side portions which do not contact the ground or water unless the structure is loaded offset of the longitudinal centre line thereof. The power means comprises two capstan heads arranged parallel to one another with the fixed cable passing to and fro several times between the heads, one at least of which is driven.
Patent GB-823071-A (GB)
Title: Ignition magnetos
Filed: 1956-05-22
Abstract: 823,071. Ignition magnetos. BENDIX AVIATION CORPORATION. May 22, 1956 [June 1, 1955], No. 15814/56. Class 35. The shaft 23 of a magneto, and the cam-shaft 14 of a distributer are driven through gearing 26, 27, 28 from an engine-driven shaft 11. The magneto consists of a four-pole magnetic rotor 29 and four stator poles joined in pairs by cores 32, 33 carrying coils 34, 35 connected to circuitbreakers 36, 37 actuated by a four-lobe cam 38 on the rotor shaft 23. The magneto is mounted on a plate 39 pivoted on a flange 41 and locked in the adjusted angular position by screw 43. By this means the magneto stator and the contact-breakers are rotatably adjusted together to give correct firing timing. Current impulses are fed in sequence to H.T. transformers connected to the sparking-plugs by means of a distributer 48 having a series of cam-operated contacts 50. A timing disc 61 is mounted on the end of the distributer cam-shaft 14.