baber/WOPTO huggingface dataset:
Patent GB-1111363-A (GB)
Title: Error-preventing construction of, and reading arrangement for a shaft encoder
Inventor: KRISTY JOHN ANTHONY
IPC: H03M1/00
Filed: 1967-01-11
Abstract: 1,111,363. Shaft encoders. UNITED AIRCRAFT CORPORATION. 11 Jan., 1967 [18 Feb., 1966], No. 1442/67. Heading G4H. In a coded disc for a shaft encoder each track comprises a pair of conductive elements 12, 14 which are supplied with voltages of opposite polarity, a bi-stable device 26 adapted to be set by one voltage and reset by the opposite voltage, remaining in either state in the absence of any input, and a brush 24 connected to the bi-stable device and adapted to contact the two elements alternately. The conductive elements 12 and 14 have interfitting teeth A, B separated by insulation 10. The brush 24 may be large enough to bridge the insulation and current limiting resistors 21, 23 are provided in the supply circuits. The output from the brush may be as shown in Fig. 2. The flip-flop 26 sets when the output becomes negative and resets when it returns to positive. It is not affected by brush noise, even if the brush signal vanishes, 30, 32. The other tracks may be similarly arranged. Higher order tracks are sensed by leading and lagging brushes, each controlling a flip-flop. One of the outputs from the two flip-flops is taken in accordance with the value of the next lower bit. The gating circuit for a three-track binary scale encoder is described. The flip-flop circuits may each comprise a trigistor or a transwitch, Fig. 4 (not shown).
Patent GB-470370-A (GB)
Title: Improvements in and relating to air cooled condensers
IPC: F25B39/04
Filed: 1937-01-18
Abstract: 470,370. Making air-cooled condensers. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 18, 1937, No. 1490. Convention date, Jan. 18, 1936. [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] Assembling force fits.-A tubular sheet-metal condenser 12, Fig. 2, for a refrigerating-machine comprises an outer plate 20, Fig. 3, to which two inner plates 21, 22 are attached by spot or line welding, registering indentations in the plates forming sinuous ducts through which the refrigerant passes. The plates are assembled and welded flat, and are bent to form a cylinder, the ends of the outer plate being lapped and welded. This cylinder with the spacing member 13, Fig. 2, which is made from a rectangular sheet of metal bent to form a series of zigzag fins, is forced over the cylindrical support 10 in a hydraulic press. To limit the pressure required to effect this operation and to enable the condenser to expand without collapsing the ducts, slots 26, Fig. 3, are formed in the plate 20 adjacent the lap joint, which slots permit a limited localized expansion of the plate at a predetermined pressure.
Patent GB-889229-A (GB)
Title: Magnetic abrasive wheels, method of making them and machine tools for using them
IPC: B24B49/00
Filed: 1960-01-15
Abstract: A magnetically controllable grinding wheel comprises non-metallically bonded abrasive grains and contains a material to give the wheel a magnetic susceptibility of at least 10-6 CGS units.  In an example, a wheel is prepared from a phenolic resin, magnetite grit, calcium oxide, fused alumina grains and anthracene oil.
Patent GB-880857-A (GB)
Title: Metallic rotary teasel and its support for textile machines
IPC: D06C11/00
Filed: 1960-01-15
Abstract: 880,857. Brushes. ETABLISSEMENTS ALBERT C. SCHOLAERT. Jan. 15, 1960 [Jan. 16, 1959], No. 1595/60. Class 19. In a metallic rotary teasel for textile machines the axles of the teasel are provided at the ends thereof with hubs 4 adapted to be fitted over stationary pivots 8, 9. As shown, the bobbin 1 is driven by a gear 6 and has axles 3 formed with the hubs 4 which are surrounded by flanges 5, the pivot 9 being removably mounted in a support 12; the projecting ends of a pin 14 in the pivot are passed through grooves 15 in the support and the pivot is rotated through an angle of 90 degrees when the ends of the pin engage in notches in the support. A spring-loaded knob 18 holds the pivot locked in position.
Patent GB-659410-A (GB)
Title: Improvements relating to bee-hives
IPC: A01K47/00
Filed: 1949-01-20
Abstract: 659,410. Beehives. KIRBY, A. J. Jan. 20, 1949, No. 1632. [Class 5(ii)] The alighting board 28 is detachably mounted, a tongue 29 being held in a rebate in the sides 12 by the overlying sloping floor 11. Slides 22 guided on pins 24 and locked by a catch 25 engaging one of the notches 26 regulate the size of the entrance 17. A germicide or like container 20 is mounted in the partition which closes the gap between the outer casing 15 and the brood-chamber 14.
Patent GB-342498-A (GB)
Title: Improvements in castrating appliances
IPC: A61D1/06
Filed: 1930-01-17
Abstract: 342,498. Pliers. LEWIS, R. L., 12, Bridge Street, Llanrwst, Denbighshire. Jan. 17, 1930, No. 1657. [Class 61 (ii).] Forceps for use in assisting castration by the bloodless method consist of a pair of curved jaw members 1, 2 hinged together at 3 and provided with slots or bifurcations 4 at their free ends. The ends of the jaws may be blunt or rounded, and the forceps are preferably provided with arms 5, 6.
Patent GB-976193-A (GB)
Title: Glass compositions and methods of making glass
IPC: C03C1/02
Filed: 1961-01-16
Abstract: A colorant enriched glass frit which is substantially free of alumina and magnesium oxide and contains more than 2% by weight chromium oxide as a colorant but not more than a total of 5% by weight calcium oxide and barium oxide. An additional colorant is selected from the oxides of iron, cobalt, nickel or mixtures thereof.  The colorant frit consists of, in percentages by weight: SiO2, 55-75; Na2O + K2O 15-30; B2O3 0-20; CaO+BaO 0-5; chromium oxides over 2; Fe2O3 0-2; CaO 0-1; NiO 0-5.  Examples are given. Base glasses lie within the following ranges: SiO2 60-75; Al2O3 0.3-10; CaO+MgO 6-15; Na2O 12-18; K2O 0-5; BaO 0-5; Se 0.00025-0.00035.  In examples, small amounts of Fe2O3 and TiO2 are present. Specifications 816,161, 830,450 and 896,558 are referred to.
Patent GB-923879-A (GB)
Title: Improvements relating to pick boxes for cutter chains of mining machines
Inventor: JERRIT GEORGE
IPC: E21C35/19
Filed: 1959-01-17
Abstract: 923,879. Mineral-mining pick-box assemblies. MAVOR & COULSON Ltd. Jan. 18, 1960 [Jan. 17, 1959], No. 1794/59. Class 68 (1). Fitted in a groove 9 encircling a pick-box 5 is a snap ring 14 for retaining in position a pin 13 passing through aligned holes in the box and the shank 11 of a pick mounted in the box.
Patent GB-1523052-A (GB)
Title: Cable grips
IPC: F16L5/00
Filed: 1976-01-16
Abstract: 1523052 Electric connectors HARVEY HUBBELL Inc 16 Jan 1976 [20 Jan 1975] 01808/76 Heading H2E A device for gripping a cable comprises a housing 16 having a central bore 26 for receiving the cable, and a ring 30 for gripping the cable against longitudinal displacement in the bore 26. The ring 30 includes at least two arcuate segments 40, 41 joined at a hinge defined by the outer periphery of the ring 30 and a substantially key hole shaped slot 43, the narrower open end of which extends radially from the central aperture of the ring 30. The hinge allows the opposed faces of the ring 30 to move towards and away from each other. As described one or both of the opposed faces of the ring 30 may be inclined as shown with face 48 to prevent the or each free end 46, 47 from digging into a bush 23 during tightening of the device by rotation of a nut 21. A threaded end of the housing 16 may be screwed directly into a threaded aperture in a panel 10 or may be fixed thereto by a nut 18. The ring 30 may be of nylon or brass and the central opening may be circular, have the shape of a female screw thread, or have one or more protuberances. The ring may also be provided with more than two arcuate sections, for example three. The housing 16 may be of metal or plastics.
Patent GB-1114094-A (GB)
Title: Improvements in or relating to stabilized aiming sights
IPC: F41G3/22
Filed: 1966-01-14
Abstract: 1,114,094. Stabilized sights. M. BEZU. 14 Jan., 1966 [15 Jan., 1965; 8 June 1965 (3)], No. 1847/66. Heading F3C. A stabilized aiming sight comprises a mirror 4 positioned ahead of a lens L of the sight, the mirror being stabilized by a gyroscope assembly. The gyroscope assembly includes a gyroscope 1 mounted in a pair of gimbals 2, 3, the gimbal 3 rotating about the azimuth axis Y-Y<SP>1</SP> imparting movement directly to the mirror 4 and the gimbal 2 rotating about the elevation axis X-X<SP>1</SP> imparting movement to the mirror through de-multiplying coupling means 5, 6, 6a, 7, the demultiplying ratio of which being 1 : 2. The coupling means includes two pairs of members, that is the pulley-sector combinations 6, 5 & 6a, 7, the member in each pair being connected through a backlash and friction free means. The pulleys 6, 6a are connected by the rotor of a motor 8, the rotor in its inactivated state acting as a flywheel to compensate for the kinetic inertias of the mirror and the parts of the coupling means directly connected thereto. Each gimbal 2, 3 is provided with a servo-controlled tracking gimbal 19, 9 respectively, the gimbals 2, 3 and co-operating tracking gimbals 19, 9 having interposed therebetween electromagnetic relative motion sensors 20, 10 to effectively couple the gimbal systems. The servo-control is provided by motors 21, 11 acting from signals produced by sensors 20, 10. The tracking gimbal 9 drives a further demultiplying linkage 23, 22, 22b, 22a, 23a. The bearings of the gimbals 2, 3 and of the mirror demultiplying coupling means are housed within the bearings of the tracking gimbals and the associated demultiplying linkage and since the tracking gimbals move with the gimbals the sensitivity of the gimbal mounting is increased (Fig. 4, not shown). The motor 8 and a motor 29 mounted on the axis of gimbal 3 are connectible through switch systems 30a, 30b to a pilot gyroscope (Fig. 2, not shown). Motors 8, 29 may also be actuated to change the attitudes of the gimbal system and thus the mirror 4 by manual control of two potentiometers 40 which monitor signals derived from circuits which include D.C. tachometers 55, 56 associated with the motors 11 and 21. [Figs. 5, 6, not shown).
Patent GB-1253641-A (GB)
Title: Multiple-contact connector socket
IPC: H01R12/72
Filed: 1970-01-14
Abstract: 1,253,641. Two-part couplings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 Jan., 1970 [17 Jan., 1969], No. 1873/70. Heading H2E. A multiple contact connector for receiving a plug member such as a printed circuit-board 25 comprises an insulated housing 1 having compartments each containing at least one strip-shaped contact bent at 13 to form limbs of unequal length, the longer providing a connecting tag 11, the shorter providing a contact point 15 and being stressed away from the longer limb to bear against a body portion 27 and, at its free end, in the opposite direction against the portion 23. The contacts may be carried on a separately inserted body portion 29.
Patent GB-1126742-A (GB)
Title: Modifying treatment of shaped articles derived from polyesters
Inventor: LEYLAND BORIS NICHOLAS
IPC: C08K5/13
Filed: 1965-01-15
Abstract: 1,126,742. Polyester compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 Dec., 1965 [15 Jan., 1965], No. 1911/65. Heading C3R. [Also in Division D1] A composition used in the treatment of shaped articles made from an essentially linear crystallizable polyester comprises a water-insoluble crystallizable polymeric compound which contains within a single molecule (a) sufficient repeat units identical with those forming the crystallizable portions of the polyester material treated to confer crystallizability on the compound and (b) a polyoxyalkylene group which modifies the surface of the articles treated, and has a melting-point above 100‹ C. as measured by the temperature of disappearance of bi-. refringence, and a poly(hydroxyphenyl) alkane containing two or more hydroxyphenyl groups which may be the same or different joined to a common alkane residue, as antioxidant. The poly(hydroxyphenyl) alkane may be bis-(4- hydroxyphenyl) methane, 2,2<SP>1</SP>-bis-(4-hydroxyphenyl) propane, 1,1<SP>1</SP> - bis - (4 - hydroxyphenyl) ethane, bis - (4 - hydroxy - 2 - t - butyl - 6 - methylphenyl) methane, bis - (2 - hydroxy - 3 - cyclohexyl - 5 - methylphenyl) methane, 1,1 - bis - (2 - methyl - 4 - hydroxy - 5 - t - butylphenyl) butane, bis - (2 - hydroxy - 3 - α - methylcyclohexyl - 5 - methylphenyl) methane, 2,6 - bis - (2<SP>1</SP> - hydroxy - 3<SP>1 </SP>- t - butyl - 5<SP>1</SP> - methylbenzyl) - 4 - methylphenol, a condensation product of 2,4-xylenol and nonaldehyde, a tris(hydroxyphenyl) propane compound prepared by the condensation of 1 mole of crotonaldehyde with 3 moles of 3-methyl-6-t-butylphenol, a tetrakis (hydroxyphenyl) butane compound prepared by the condensation of 1 mole of succindialdehyde with 4 moles of 3-methyl-6- t-butyl phenol, or a condensation product of mixed 2,4-/2,5-xylenols with butyraldehyde. The composition which may be in the form of an aqueous dispersion may also contain a diester of a sulphur containing dicarboxylic acid having the formula R 1 OOCR 3 SR 4 COOR 2  in which R 1  and R 2  are straight or branched chain alkyl, aryl, aralkyl, or cycloalkyl groups or alkyl groups in which the chain is interrupted by oxygen or sulphur atoms and R 3  and R 4  are straight or branched chain alkylene, arylene, arylene alkylene, arylene alkylene arylene or alkylene arylene alkylene groups. The polyoxyalkylene groups of the crystallizable polymeric compound may be derived from a polyoxyalkylene glycol of average molecular weight 300-6000. The crystallizable polymeric compound may contain 10-50% by weight of ethylene terephthalate repeat units and 90- 50% by weight of polyoxyethylene terephthalate repeat units derived from polyoxyethylene glycol of average molecular weight 1000-4000, the molar ratio of ethylene terephthalate units to polyoxyethylene terephthalate units being between 2: 1 and 6: 1.
Patent GB-395750-A (GB)
Title: Improvements in relation to oil stoves
IPC: F24C5/18
Filed: 1932-01-21
Abstract: 395,750. Liquid-fuel burners. BOWMAN, F. W., 16, Castleway, Finchley, London. Jan. 21, 1932, No. 1919. [Class 75 (i).] An oil stove or lamp for cooking, heating, or lighting, comprises a main reservoir A containing fuel under air pressure, an auxiliary reservoir B and a wiokless burner D, a single oneway cock E being provided in the pipe connecting the reservoirs A, B. The reservoir B contains sufficient fuel to allow the flame at the burner to be kept alight a sufficient time after the cock E is closed to permit of the reservoir A being refilled and the pressure restored by the air pump C. Additional burners and auxiliary reservoirs may be connected to the cock E. Specifications 16701/93, [Class 75, Lamps &c.], and 188,075, [Class 75 (i), Burners &c.], are referred to.
Patent GB-370078-A (GB)
Title: Improvements in articulators for the arranging of artificial teeth
IPC: A61C11/02
Filed: 1931-01-20
Abstract: 370,078. Dental articulators. CHRISTIANSEN, E. G., 5, Bygd÷ Alle, Oslo, Norway. Jan. 20, 1931, No. 1923. [Class 81 (ii).] In an articulator wherein the upper member 3 is pivoted on posts 2 on a lower member 1 and is supported at its free end by an adjustably secured rod 12, the posts 2 are formed with inclined rear surfaces 14, or with rearwardly extending projections, so that the articulator may rest at an angle to the supporting surface as shown in Fig. 5. The posts 2 taper rearwardly for easier access to the lingual side of the work. The hinge connection of the upper member 3 comprises a springy wire 4 secured by a screw 5, and with its ends extending through inclined slots 6 in projections 7 from the member 3 into slots or grooves 8 in the top surfaces of the posts 2 where they are secured by screws 9, one of which is formed with a slot to facilitate release of the wire and removal of the member 3 when required. The rod 12 extends above the member 3 to form a support when the member 3 is turned back and is provided. with a pin 17 to indicate the position of the central incisors when setting up a model. Removable lugs 15 with adjustable screws 16 serve also for adjustment of the model when setting it up. The end of the rod 12 rests on a surface 13 inclined at the same angle as the slots 6. Pins 19 extending into openings 20 in the upper and lower members serve for securing the models.
Patent GB-113439-A (GB)
Title: Improved Apparatus for Feeding Sprayers for Heavy Oils and other Liquids.
Inventor: VIVEZ-NEE-LOUVET JEANNE
IPC: F23D11/10
Filed: 1918-02-04
Abstract: 113,439. Vivez (nÚe Louvet), J., and Conor, J. Feb. 12, 1917, [Convention date]. By aerating ascending column.-In apparatus for spraying heavy oils and other liquids by air at low pressure (about 150-350 mm. of water) from a centrifugal fan or blower 1, the liquid passes from the cask 18 through a strainer 6, funnel 5, and nozzle 8, to be carried by a part of the air, supplied through a damper 19, up a pipe 9 entering tangentially a constant-level reservoir 10 provided with an overflow pipe 16 and in which the liquid is deposited; air escapes by the uptake 13 and liquid passes by the pipe 15 to the sprayer.
Patent GB-606919-A (GB)
Title: Improvements in or relating to agricultural implements
IPC: A01B3/02
Filed: 1946-01-22
Abstract: 606,919. Agricultural implements. LEECH, H. C. Jan. 22, 1946, No. 2073. [Class 6(i)] A manually-operable agricultural implement for carrying out normal gardening operations comprises a frame-work a having a rear ground wheel c and a breastplate d connecting spaced handle bars at the upper rear end. A cranked spindle e<SP>1</SP> mounted on the frame drives the ground engaging endless track p through intermediate chains and sprockets. A tool holder in the form of a capstan member r has radially projecting sockets r<SP>1</SP> to which any required tool may be attached.
Patent GB-178896-A (GB)
Title: An improved filler, loading, base, compounding material, pigment or the like
IPC: C09C1/00
Filed: 1921-01-14
Abstract: A material suitable as a filler for size, and consisting of precipitated magnesium hydrate and calcium carbonate, is prepared by treating a mixture of magnesia and lime with an alkali carbonate in an aqueous medium.  Calcined dolomite is slaked and treated with a solution of sodium carbonate in slight excess of the equivalent of the calcium hydrate present.  After agitation and boiling the precipitate is filterpressed, washed, sieved and dried.  Mixed with adhesives and other substances the material may be applied to card-stocks for the production of coated papers. The material may also be employed in the manufacture of textiles, &c.ALSO:A material that may be used in the production of lakes, and consisting of precipitated magnesium hydrate and calcium carbonate, is prepared by treating a mixture of magnesia and lime with an alkali carbonate in an aqueous medium.  In an example calcined dolomite is slaked and treated with a solution of sodium carbonate in slight excess of the equivalent of the calcium hydrate present.  After agitation and boiling the precipitate is filter-pressed, washed, sieved and dried.ALSO:A material, suitable for use in making soaps &c., consisting of precipitated magnesium hydrate and calcium carbonate is prepared by treating a mixture of magnesia and lime with an alkali carbonate in an aqueous medium.  Calcined dolomite is slaked and treated with a solution of sodium carbonate in slight excess of the equivalent of the calcium hydrate present.  After agitation and boiling the precipitate is filter-pressed, washed, sieved and dried.ALSO:A material consisting of precipitated magnesium hyrdate and calcium carbonate is prepared by treating a mixture of magnesia and lime with an alkali carbonate in an aqueous medium.  Calcined dolomite is slaked and treated with a solution of sodium carbonate in slight excess of the equivalent of the calcium hydrate present. After agitation and boiling, the precipitate is filter-pressed, washed, sieved and dried.ALSO:A material suitable as a pigment, loading, filler, &c consisting of precipitated calcium carbonate associated with a variable amount of magnesium hydrate is prepared by treating a mixture of magnesia and lime with an alkali carbonate in an aqueous medium.  Calcined dolomite is slaked and treated with a solution of sodium carbonate in slight excess of the equivalent of the calcium hydrate present.  After agitation and boiling the precipitate is filter-pressed, washed, sieved and dried.
Patent GB-113442-A (GB)
Title: Improvements in Internal Combustion Engines.
IPC: F02M13/08
Filed: 1918-02-05
Abstract: 113,442. Domestic Engineering Co., (Assignes of Kettering, C. F.). Feb. 5, 1917, [Convention date]. Valves. - In an engine in which combustion gases which leak into the crank chamber are drawn back into the cylinder during the suction stroke mixed with the normal charge a non-return valve 35 is located at the entrance of a passage 32 leading to the admission valve 46. The valve comprises a ported cylindrical portion x, flanged at its lower end, and a disk of felt 36 which, in the closed position of the valve, rests upon a metallic ring 38 mounted between rings of felt 40.
Patent GB-196109-A (GB)
Title: Improvements relating to folding roofs and hoods and side weather screens for motor road vehicles and the like
IPC: B60J7/12
Filed: 1922-01-24
Abstract: 196,109. Kelley, F. R., George, A. E., and Jobling, R. L. Jan. 24, 1922. Vehicle windows.-The side windows are supported by pillars a which are hinged to be turned down at a<1> when not required, and are used in conjunction with a folding hood extended by stretcher bars c and a cant-rail d hinged at m and supported by the wind screen frame e and a pivoted upright h. The pillar a above the door hinge is hinged to the door, the other pillar of the door window being either hinged or fixed to the door.
Patent GB-623104-A (GB)
Title: Improvements in register mechanism for multi-unit web printing machines
IPC: B41F13/02
Filed: 1947-01-23
Abstract: 623,104. Printing-machines. HOE & CO., Ltd., R. Jan. 23, 1947, No. 2173. Convention date, Jan. 28, 1946. [Class 100 (i)] Registering webs.-In a multicolour printing-machine in which a web 10 is printed with superposed impressions by rotary couples 2,3, 4, 5, the register of the various impressions is obtained by changing the tension of the web as it passes to a unit and simultaneously changing the tension in the opposite sense as it passes from that unit. In the machine shown, the web is printed by a couple 1 on one side before being printed in multicolour on the reverse side, and the change in tension is effected by passing the web over rollers 15 mounted in pivoted arms 16 which are connected by screw-and-nut mechanism comprising threads 27, 28 of opposite thread which are rotated by worm gearing from a motor 33, which is controlled by hand, or controlled remotely by known means. The screw mechanism comprises arms 20 pivoted to the shafts 19 of the rollers 15, and pivoted to the arms 20 are threaded sockets 21 engaged by the threads 27, 28. If one arm 16 is moved clockwise the other arm moves counterclockwise, and an adjustment of the web occurs relatively to the printing surface which is designed to correct lack of register between successive impressions. In a modification, the arms 16 are dispensed with and the axles of the rollers 15 are mounted in slots in the machine frame, and are given a sliding motion in the slots.