baber/WOPTO huggingface dataset:
Patent GB-281144-A (GB)
Title: An improved lifting jack
IPC: B66F15/00
Filed: 1927-03-03
Abstract: 281,144. Newton, H. E. March 3, 1927- Jacks. - A lever lifting-jack has a vertically guided lifting pillar acted on at its lower end by a lever connected to the base by links which are so constructed and arranged that the lifting pillar can be fully raised by a single stroke of the lever and the load is sustained in the raised position as the fulcrum pivot of the lever is caused to move across the line of thrust bv the rocking of the links. The pillar C carries an adjustable crutch c<1> and is pivotally connected at its lower end c to the operating lever D. The lever D is connected by links E to the base B. When the load is raised by depressing the lever, the links move sideways and the fulcrum pivot of the lever moves across the line, of thrust so that the load is sustained in the raised position.
Patent GB-389269-A (GB)
Title: Improvements relating to water-closets
IPC: E03D11/17
Filed: 1932-02-27
Abstract: 389,269. Water-closet flush connections. FETTERMAN, M., 106, Union Hall Street, Jamaica, Long Island, New York, U.S.A. Feb. 27, 1932, No. 5960. [Class 26.] A coupling for connecting a flush tank with a water-closet comprises a pipe with angularly disposed arms G, H, of which the arm H includes an end-piece I which can be secured in the usual manner to the flush tank and is united detachably to the arm H by means of flanges L, K, a washer Q and a nut N, while the arm G slides within a tubular projection B of usual kind provided with a gland nut D and packing E. Disconnection is effected by unscrewing nut U and sliding the arm G out from the tube B.
Patent GB-575715-A (GB)
Title: Improvements in the manufacture of film, sheet or ribbon of thermoplastic material
IPC: C03B17/06
Filed: 1944-03-31
Abstract: 575,715. Glass. THURSTON, A. P. (Owens-Corning Fiberglass Corporation). March .31, 1944. No. 5974. Drawings to Specification. [Class 56] In apparatus for making glass ribbons by extruding molten glass through a slot in the bottom of a heated container and subsequently attenuating the same, in order to prevent the edges of the ribbon as it leaves the slot from thickening or " necking down " heat-conducting pins are arranged adjacent the ends of the slot. The ribbons may be crimped and may be formed into a resilient mass by doubling the ribbons back and forth in haphazard arrangement; such mass may be used for thermal insulation. The ribbons may also be used in the manufacture of electric condensers: U.S.A. Specification 2,230,272 is referred to.
Patent GB-577823-A (GB)
Title: Improvements in or relating to methods of bringing about adhesion between surfaces
IPC: C09J129/14
Filed: 1942-05-04
Abstract: 577,823. Compound and coated fabrics. BRUYNE, N. A. De. May 4, 1942, No. 5990. [Class 140] A composite sheet of metal, or wood, fabric or other cellulosic material and metal has the layers bonded together by interposing between the two surfaces a layer of polyvinyl acetal resin and between the polyvinyl acetal layer and each of the two surfaces to be united a layer of heat-hardenable resin such as phenol-formaldehyde or metacresol-formaldehyde condensation product and pressing the sheets to be united and the interposed layers together at a temperature sufficient to harden the heat-hardenable resin, e.g., at a pressure of 1 ton per square inch and at a temperature of 140‹C. In a modified process each of the sheets to be united is coated with the uncured heat-hardenable resin and a layer of powdered polyvinyl acetal resin interposed between the coated surfaces and the sheets then pressed together. In another modified process the sheets are united by an adhesive film material made of a film of the polyvinyl acetal resin coated with the heat-hardening resin. Specification 525,556. [Group XXIII], is referred to.
Patent GB-1253916-A (GB)
Title: Novel pyridine derivatives
IPC: C07D471/04
Filed: 1969-09-10
Abstract: 1,253,916. Derivatives of N-(pyridylmethyl)- aniline. F. HOFFMANN-LA ROCHE & CO. A.G. 10 Sept., 1969 [10 Sept., 1968], No. 6002/71. Divided out of 1,253,915. Heading C2C. The invention comprises compounds of formula wherein X is H, NO or NO 2 ; R 2 , R 3 , R 4  and R 5  (of which at least 1 is other than H) are each H, halogen, C 1-6  alkyl or alkoxy, (C 1-6  alkoxy)- carbonyl or CF 3 ; R 6  is H or C 1-6  alkyl; and A is 2-, 3- or 4-pyridyl, possibly substituted by C 1-6  alkyl. These compounds are prepared by reacting the corresponding substituted aniline with R 6 -CO-A, reducing the imine so formed to the above compound (X=H), nitrosating the latter to obtain the nitrosamine (X=NO), and reducing this to the hydrazine (X=NH 2 ).
Patent GB-452585-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03J7/02
Filed: 1935-02-25
Abstract: 452,585. Valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Beers, G. L. ; 119, Summerfield Avenue, Collingswood, New Jersey, U.S.A.) Feb. 25, 1935, No. 6010. Convention date, Feb. 23, 1934. [Class 40 (v)] In a superheterodyne receiver of the kind comprising manual tuning control and supplementary automatic tuning control for final accuracy of tuning, operation of the automatic control is prevented until the manual control is adjusted to a predetermined frequency displacement from the in-tune position. Fig. 1 shows a receiver comprising a first detector 95, oscillator 112, I.F. amplifier 97 and signal diode 99. A noise suppression circuit, comprising an amplifier 187, coupled to the I.F. stage over condenser 201, a diode 189 and suppressor valve 153 prevents automatic tuning action until the receiver is tuned to within about 1À5 k.c. of a desired frequency. The automatic tuning circuit comprises amplifier 177, diodes 163, 165 and frequency control valve 138, the diode input circuits being tuned one 3 k.c. above, the other 3 k.c. below the desired I.F., and including load resistances 173, 175 oppositely connected in the grid-cathode circuit of valve 138. The bias on the latter thus varies with the departure from exact tune, the tuning circuit of oscillator 112 being varied in compensating sense. The amplifiers 97 and 177 are biassed back to cut-off, until signals reach a predetermined amplitude, by the p.d. across resistance 151 in the anode circuit of the suppressor valve 153. As increasing signal is passed by valve 187, increasing p.d. across the load resistance 211 of diode 189 increases the negative bias on the control grid of valve 153, the resulting fall in anode current releasing valves 97 and 177. The inclusion of the signal diode resistance 137 in the suppressor valve grid circuit accelerates the release action. The automatic tuning may be effected either by varying the effect of a variable trimmer condenser 166, gang-controlled with the oscillator and main tuning condenser controls, or by varying the oscillator frequency by varying its anode potential. Switches 131, 132 effect the change from one control to the other. Fig. 2 shows an input filter suitable for use with the receiving arrangement of Fig. 1, and designed for a band width of 50-100 k.c. The filter 5 comprises variable series inductances 7, 9, 11 and shunt inductances 15, 17, all with movable powdered iron cores, unicontrolled by knob 21.
Patent GB-139890-A (GB)
Title: Improvements in or relating to trolley heads of electric tram cars and the like
IPC: B60L5/06
Filed: 1919-03-11
Abstract: 139,890. Clarke, R. J. March 11, 1919. Trolly heads.-The spindle of a trolly-wheel support is formed with an annular groove E<1> and a pair of " flats " E, immediately below the groove, which coact with a pin A in the trolly bracket, whereby, when the pulley is not engaging the conductor, it can be locked in alinement with the pole by the engagement of the pin with either of the " flats." Upon engagement with the conductor, the wheel and spindle are depressed against the spring C, and the pin A engages in the groove E, thus permitting the wheel and spindle to rotate freely. A second pin B in a vertical slot in the bracket engages a groove F in the spindle and, whilst permitting the spring a limited vertical movement, prevents it from being detached from its socket.
Patent GB-452723-A (GB)
Title: Improvements in or relating to hydraulic control mechanisms
IPC: F15B17/00
Filed: 1935-02-26
Abstract: 452,723. Oscillating-cylinder pumps. DONKIN & CO., Ltd., PAULIN, W. S., and STOREY, E., Walker Gate, Newcastle-on-Tyne. Feb. 26, 1935, No. 6075. [Class 102 (i)] [See also Group XXIX] Two pumps used in a hydraulic control system each have three plungers 80 reciprocated in oscillating blocks by three throw cranks 82, the port 93 co-operating during the oscillation of the blocks with fixed ports 95, 96. The two crank-shafts are coupled by gearing 84, 85, 88 for actuation by a helm on the shaft 86, which shaft may also be operated from a remote point by a shaft 92 acting through bevel gearing 89. The two sets of cranks may be formed in a common shaft or the shafts may be selectively clutched to a single operating shaft.
Patent GB-1519878-A (GB)
Title: Cevices for utilizing the power of the wind
IPC: F03D1/04
Filed: 1977-02-17
Abstract: 1519878 Wind turbines G W WEBSTER 17 Feb 1977 [17 Feb 1976] 06115/76 Heading FIT A wind turbine plant comprises a curved duct 1 having an inlet 2 and an outlet 4 the latter containing rotor blades 8 mounted on a vertical shaft 5 and supported at their tips from fixed structure, e.g. by engagement of rollers 9, 10 with guides 12, 13. Modified blade supports are described. Shaft 5 passes through the duct wall at 6 to drive a generator or pump 7. The duct support frame 14 is mounted on rollers 15 for adjustment into wind.
Patent GB-487618-A (GB)
Title: Liquid composition for erasing indian ink from tracing papers and tracing cloths
IPC: C11D3/43
Filed: 1937-03-02
Abstract: 487,618. Erasers. SIMPKIN, W. March 2, 1937, No. 6147. [Class 146 (iii)] A liquid composition for use in erasing indian ink from tracing paper or tracing cloth is composed of carbon tetrachloride, spirit, ammonia, linseed oil, and water in stated proportions. The ammonia and linseed oil may be replaced by oxalic acid and turpentine respectively.
Patent GB-1105214-A (GB)
Title: Improvements in or relating to measuring instruments
IPC: B23Q17/22
Filed: 1966-02-11
Abstract: 1,105,214. Determining dimensions. A. G. WELLUM. Jan. 31, 1967 [Feb. 11, 1966], No. 6150/66. Heading G1M. A measuring instrument comprises a support member 14 on which is mounted a displaceable element 17 arranged for reciprocating movement in a predetermined direction in relation to the support member, against the action of flat springs 18, 19 biasing it to a predetermined rest position in relation to the support member, the displaceable element 17 being provided with first and second jaws 25, 28 one of which 25 is mounted on a micrometer 23 carried by the displaceable element for adjustment in the said predetermined direction of movement of the element, the spacing between the jaws being adjusted by the micrometer so that rotation of a cutting tool under tub mounted between the jaws will result in the displacement of the element 17 first in one sense and then in the opposite sense, and a gauge 30 co-operating with the displaceable element to provide an indication of the displacement of the element 17 to each side of its rest position. In operation an appropriate spindle extension 28 is fitted on an adapter 27 and the spacing between the spindle extension 28 and the micrometer spindle 25 is made less than the limiting diameter of the hole to be bored by 0.002 of an inch. The diameter of the cutting circle of the  tool is checked by bringing it into position such that the cutting tool just touches the spindle extension. The tool is then rotated by hand in a reverse direction to its cutting direction so that the spindle 28 is first deflected in one sense with the displaceable element 17 and then the micrometer  spindle in the opposite sense together with the displaceable element. The position of the casing 14 on the base-plate 12 is adjusted to give an equal deflection on the gauge 30 on either side of the zero and provided this deflection is 0.001 inch the cutting circle is correct.
Patent GB-162476-A (GB)
Title: Improvements in and relating to heat-exchange apparatus, particularly applicable to radiators for internal combustion engines
IPC: F28D1/02
Filed: 1920-03-02
Abstract: 162,476. Shepherd, W. B., and Pugh, G. E. March 2, 1920. Radiators, motor-car.-A heat-exchange apparatus particularly applicable to radiators for internal-combustion engines comprises a number of flat endless tubes M of approximately circular or oval outside form arranged one within the other as shown in Fig. 1, and provided with slotted tags P, through which pass a screwed rod provided with nuts to engage the tags, and having strips of resilient material O such as rubber or felt placed between the tubes to absorb shock and prevent damage due to vibration. The tubes Mare provided with coupling pieces G having passages communicating with the tubes, and washers H are provided between the coupling pieces to prevent leakage. The tubes are held in position by means of blank ends K and bolts R.
Patent GB-432443-A (GB)
Title: Improvements in struts and like members for aircraft
IPC: B64C3/18
Filed: 1934-02-28
Abstract: 432,443. Aircraft structural members. PETTERS, Ltd., RICHARDS, S. T. A., and GAUNT, V. S., Westland Aircraft Works, Yeovil, Somerset, and A.T.S. CO., Ltd., 3, Clement's Inn, Strand, London. Feb. 28, 1934. No. 6440. [Class 4] A metal strut or like member for use in aircraft comprises a preferably streamline thin metal shell 1, Figs. 1 and 2, to the inner surface of which are connected two oppositely disposed metal strips 4, 5 designed to withstand the major portion of the load imposed on the member, the strips being connected together and spaced apart by a web member 6. As shown shell 1 is formed from a single sheet bent to streamline shape and lap jointed at the trailing edge. Members 4, 5 which are disposed on the minor axis of the strut are formed from extruded aluminium alloy and may be reduced in cross section toward their ends in accordance with the loading. End fittings 12, Fig. 1, are connected to the ends of members 4, 5 which if of varying cross section have the full section restored at the attaching points. End fitting 12 may be adjustable for length as shown in Fig. 1. Members 4, 5 are secured to channel 6 and to shell 1 by rivets having countersunk heads nesting in depressions formed in shell 1 which in turn nest in depressions formed in members 4, 5 respectively. According to modifications the parts may be secured together by electric welding and shell 1 may be formed in two parts lap jointed at leading and trailing edges.
Patent GB-326974-A (GB)
Title: Process of producing an explosive
IPC: C06B31/22
Filed: 1929-02-27
Abstract: 326,974. Hahn, M., and Wolf, M. Feb. 27. 1929. Explosives.-An explosive is prepared by dissolving burnt lime in nitric acid, adding cellulose and water, and drying, further addition of a solution of lime in nitric acid and redrying being subsequently effected to render the explosive ready for use. For example, 8-13 parts by weight of burnt lime is dissolved in 50 parts of raw nitric acid of 80‹ BÚ., this is diluted with 1-5 parts of water and mixed with peat powder or sawdust and dried, about 5 parts by weight of liquid being used for 1 part of the cellulose material. Before use, the dried material is again mixed with the same proportion of the liquid and again dried.
Patent GB-567263-A (GB)
Title: Improvements in devices for use in applying soap or other detergent
IPC: A47K7/03
Filed: 1943-04-28
Abstract: 567,263. Soap holders. MARTIN, N. April 28, 1943, No. 6682. [Class 131] A device for use in applying soap or other detergent consists of a ring, loop or sleeve adapted to be passed over a person's finger or fingers and being formed of porous or perforated material containing, or impregnated with, a quantity of soap or other detergent. The material may be charged with the soap &c. by immersing it in a solution thereof and allowing it to dry. As shown in Fig. 5, a double-walled ring contains soap d. The soap-containing portion of the ring may extend throughout the whole or a portion of the circumference. In a modification, Fig. 8, a sheet of impregnated material may be cut along the line i and the resulting flap j pressed out to form the finger ring. One edge may be folded over to constitute a pad k. Two flaps may be provided in the sheet of material to provide finger holes. A ring or loop may be formed by making two parallel cuts m, Fig. 10, in the sheet and pressing up the intervening strip.
Patent GB-284489-A (GB)
Title: Improvements in and relating to parachutes and stowing devices for use therewith
IPC: B64D17/52
Filed: 1927-03-10
Abstract: 284,489. Calabi, A. G. March 10, 1927. Parachutes.-Main and pilot parachutes 15, 19 are packed in a knapsack 14, the flaps 13 of which are drawn together by a detachable screw device 5 and held together by a breakable cord. The calotte of the pilot parachute is fixed to the lid 18 of a box 16 within which the parachute spring 17 is compressed. The end 4, Fig. 1, of a square bushing 3 is screwed into the box 16 holding it closed. A milled tube. 5, which is raised and lowered on the bushing 3 by a screwed stem 2 engaging the bushing, supports tension cords 7 which pass through a flange on the bushing 3 and are connected by hooks 9 to tags on the flaps. By raising the tube 5, the flaps are drawn firmly over the parachute and the box 16 and are then tied together and the screw device removed. The parachutes are connected by ropes 22, Fig. 6, and which are also fixed to a canvas disc 24 on the box 16. The parachute 19 is practically spherical owing to reinforcing seams 26 thereon.
Patent GB-453203-A (GB)
Title: Improvements in plastics
IPC: C08L91/00
Filed: 1935-03-04
Abstract: Solutions of organic sulphides in sulphur are manufactured by maintaining a body of molten sulphur at a temperature not exceeding 160 DEG  C., preferably 140--160 DEG  C., and bubbling an aliphatic unsaturated hydrocarbon in gaseous condition through it. The reaction may be assisted by the presence, as catalyst, of an inorganic sulphide, e.g. copper sulphide, or an organic sulphide, e.g. the mercaptans, or of chlorinated diphenyls, chlorinated naphthalenes, phenol-sulphur chloride resins, camphor or diphenylguanidine.  Some of these substances act also as modifying agents, whilst there may further be used as modifying agents cotton seed oil, vegetable oils, asphalt or ozokerite, or the sulphides produced by the reaction of china wood oil or oleic acid with sulphur.  Suitable unsaturated hydrocarbons are olefines in pure or diluted state, e.g. in the form of still gas (olefines diluted with carbon dioxide and other adulterants), or acetylene. The products are suitable for extrusion into various shapes, for impregnating cellulosic materials, fabrics, (e.g. for the construction of hose, flexible ventilators, packing materials and flexible diaphragms), cement or stone, as thin coating films, as bonding agents, e.g. in bonding felt to metal, for lining pickling vats, electrolytic cells or acid tanks, as substitutes for rubber and as insulating materials.  A sample has been furnished under Sect. 2 (5) of the product obtained by bubbling acetylene through sulphur at 133--137 DEG  C.
Patent GB-536399-A (GB)
Title: Improvements in and relating to illuminated advertising signs
IPC: G09F13/26
Filed: 1940-04-15
Abstract: 536,399. Signs. RYAN, P. T. April 15, 1940, No. 6759. [Class 3 (ii)] A sign giving the effect of neon tubes comprises a translucent front sheet 1 on which the character &c. 2 is painted or printed, outlined by a transparent border 3. Spaced to the rear by rubber washers, &c. 5 is a parallel white opal glass sheet 4, and at the back of this is a coloured glass sheet 6 bearing a stencil 7 of the character to a slightly larger scale than that on the front sheet 1. The stencil 7 may be in a sheet of lead and the print or paint forming the character 2, and acid embossing forming the surround, are applied to the back of plate 1, and the plate is acid embossed beneath the paint &c. to enhance adhesion thereof. The sheets 1 and 6 are relatively adjustable in a parallel direction to bring the respective characters more or less out of register.
Patent GB-124734-A (GB)
Title: Improvements in Reaction Steam Turbines.
IPC: F01D1/02
Filed: 1919-03-18
Abstract: 124,734. Akt-Ges. Brown, Boveri, et Cie. March 28, 1918, [Convention date]. Axial-flow type; rotors. -In order to permit of increased width for the hubs c of reaction turbine wheels having high peripheral speeds, the stator guide-vanes a are made wider than the rotor ' blades b.
Patent GB-945484-A (GB)
Title: Improvements in or relating to photographic reflex cameras
Inventor: STEISSLINGER KURT
IPC: G03B9/08
Filed: 1960-02-26
Abstract: 945,484. Single lens reflex cameras. KODAK Ltd. Feb. 26, 1960, No. 6773/60. Heading G2A. A photographic reflex camera of the single lens type having a between-the-lens shutter of the setting type, the blades of which are operable to an open position for viewing the scene to be photographed and are operable by shutter mechanism to open and closed positions for making an exposure, comprises shutter setting means and control means which is actuated by the shutter setting means, independently of the shutter mechanism, for moving the shutter blades to their open position and releasable holds by friction the blades in said open position for viewing the same to be photographed. As shown (Fig. 4,), shutter setting means comprising a rack 5 guided for reciprocal movement by a roller 6 and pinions 7-9 is coupled through the pinion 7 to the camera filmwinding handle so that on advancing the film, rack 5 is moved to the left into engagement with a fixed stop, the shutter is set by means of the pinion 8 (connected to the shutter setting spindle), and pinion 9 is made to rotate in the clockwise direction, carrying with it the control pawl 25. During rotation of this pawl, a finger 31 thereof comes against a pin 38 on a rotatable blade ring and thereby opens the shutter blades against spring tension. The arrangement is such that the blades and pawl are stopped in the fully open position whereas the pinion 9 continues to rotate a further small amount. By means of the construction shown in Fig. 8 in which pinion 9 and pawl 25 are freely rotatable on a fixed spindle 23 and are held together by projections 35 engaging in recesses 34 under loading by a leaf spring 28, pinion 9 is then cammed away from the pawl 25, and the blades are thereby frictionally held in the open position. On subsequent actuation of the shutter release, the pinion 8 rotates under loading of a shutter spring, rack 5 returns to its original position, and pinion 9 rotates in the anticlockwise direction, collecting the pawl 25, and thereby closing the shutter blades ready for their exposure movement. Rebound of the blades during the above mentioned closing is prevented by the peripheral edge of finger 32 of the pawl 25.