baber/WOPTO huggingface dataset:
Patent GB-1435161-A (GB)
Title: Silicone fluids useful as hydraulic fluids
IPC: C10M107/50
Filed: 1973-03-30
Abstract: 1435161 Hydraulic fluid GENERAL ELECTRIC CO 30 March 1973 [24 May 1972] 15556/73 Heading C5F [Also in Division C3] An hydraulic fluid comprises (a) 1-80% of the total weight, of a polysiloxane having 75- 95 mol per cent of units R 2 Si(OM)O 0À5  and/or R 2 SiO, 5-25 mol per cent of units RSi(OM) 2 O 0À5 , RSi(OM)O and/or RSiO 1À5  and optionally trace amounts of units (MO) 3 SiO 0À5 , (MO) 2 SiO, MOSiO 1À5  and/or SiO 2  and up to 5 mol per cent of units R 3 SiO 0À5 , the MO groups being at least 5 mol per cent of the total of R plus MO groups, the viscosity being 2-400 cS/25‹ C., and R being a C 1-8  hydrocarbyl halohydrocarbyl or cyanoalkyl radical, and each M being a radical R-, ROR<SP>1</SP>-, ROR<SP>1</SP>OR<SP>1</SP>-, (RO) 2 R<SP>11</SP>-, R-NH-R<SP>1</SP>, or R(OC x H 2x ) n - where R<SP>1</SP> is a divalent and R<SP>11</SP> a trivalent C 1-10  saturated aliphatic or aromatic radical, x is 2, 3 or 4, and n is at least 5, (b) 20-99 wt. per cent of the total of a liquid linear polysiloxane of average unit formula where n is 2-3, of viscosity 20-500 cS/25‹ C. There may also be present 1-20 wt. per cent of (b) of a viscosity depressant polysiloxane of 80-91 mol per cent of units R 2 SiO, 5-10 mol per cent R 3 SiO 0À5 , and 4-10 mol per cent RSiO 1À5  and of viscosity 5-100 cS/25‹ C.; 1-6 wt. per cent, of the total fluid, of a rubber swell additive R<SP>11</SP>OOC-R<SP>111</SP>-COOR<SP>11</SP> or R<SP>11</SP>COOR<SP>11</SP>, wherein R<SP>11</SP> is a C 4-15  hydrocarbyl or halohydrocarbyl group and R<SP>111</SP> is a divalent C 5-12  hydrocarbon or halohydrocarbon group; 0À05-2 wt. per cent of the total of an anticorrosive, e.g. zinc naphthenate or a substituted alpha-naphthylamine; and 0À1-5 wt. per cent of an antioxidant, e.g. an N substituted p-aminophenol or p-phenylene diamine. Preferably (a) contains 20-48 wt. per cent of groups OM. In the examples a hydrocarbonoxy-polysiloxane of 7 cS/25‹ C. is obtained by addition of (C 2 H 5 O)(CH 3 O)CH.CH 2 .OH to a 65% hydrolysed mixture of Me 2 SiCl 2  and MeSiCl 3 ; 5 or 15 p.b.w. of this are mixed with 82À5-95 p.b.w. of a trimethylsilyl - terminated polydimethylsiloxane of 40 cS/25‹ C. and (Example 1) 5 p.b.w. of a 50 cS/25‹ C. copolymer of 5% Me 3 SiO 0À15  units, 89% Me 2 SiO and 6% MeSiO 1À5 , (Example 2) 2 p.b.w. dioctyl azelate and 0À3 p.b.w. of a commercial antioxidant, or (Example 3) 2 p.b.w. dioctyl adipate and 0À2 p.b.w. Zn naphthenate.
Patent GB-301709-A (GB)
Title: Improvements in and relating to incandescent gas-filled lamps and in the method of manufacturing same
IPC: H01K1/56
Filed: 1928-05-26
Abstract: 301,709. KIoks, J. A. May 26, 1928. Drawings to Specification. Residual gases.-In gas-filled bulbs of the kind in which a phosphorus compound is introduced with the gas filing, the compound employed consists principally of phosphorus trioxide. The gas filling may be prepared by passing the inert gas mixed with a very small proportion of oxygen through liquid phosphorus. Specifications 1252/14 and 11332/15, which describe processes by which mainly phosphorus pentoxide is introduced, are referred to.
Patent GB-208091-A (GB)
Title: Improvements in or modifications of an invention relating to gasdiverting valves of the rotating type for use with purifiers and other gas apparatus
IPC: C10K1/28
Filed: 1923-06-15
Abstract: 208,091. Dempster, Ltd., R. & J., and Rodger, W. F. June 15, 1923. Addition to 125,040, [Class 55 (ii), Gas Manufacture &c.]. Multiple way plug cocks. - In the purifier valve described in the parent Specification (which comprises a body portion provided with vertical walls and a rotatable hood provided with barriers) the hood is replaced by a rotary plug valve c having three barriers c<3>, two of which form a sector having an area equal to one-sixth of the total area of the valves. the barriers c<3> coacting with equally spaced faced strips a<1> projecting upwardly on the body a. The valve body is provided with the usual inlets and outlets b<1> - - b<4>. In a modification, the body is provided with five facing strips while the area of the sector formed by the two valve barriers is correspondingly increased.
Patent GB-709282-A (GB)
Title: Shock absorbing devices for the rear wheels of bicycles
IPC: B62K25/30
Filed: 1951-07-02
Abstract: 709,282. Spring frames for cycles. WYMARK, A. R., and CRILLEY, C. R. June 24, 1952 [July 2, 1951], No. 15584/51. Classes 136(1) and 136(3) A shock absorbing device for attachment to an existing conventional bicycle frame comprises a sleeve 14 secured to the chain stays 12 adjacent the bottom bracket 13, a pair of side frame members 20 rigidly connected by a spindle 19 which is rotatably mounted in the sleeve 14 to allow of pivotal movement of the members 20, the rear wheel spindle 23 being mounted in the ends 22 of the members 20, and resilient cushioning units 27 being connected between the members 20 and the stays 12. The members 20 are also connected by a bridge piece 21. A bracket 30 carrying a sprocket 32 is provided in one of the members 20 to support the chain 33 above the chain stays 12. The rear mudguard 34 is hinged at its front end to a bridge piece 18 and is slidably supported on the seat pillar stays 11 by an extensible connector 36.
Patent GB-776038-A (GB)
Title: Improvements in and relating to endless belt conveyors
IPC: B65G21/12
Filed: 1955-05-31
Abstract: 776,038. Endless belt conveyers. STUBBE, F. May 31, 1955 [June 2, 1954], No. 15642/55. Class 78 (1). In a belt conveyer adapted to pass through curves and which is supported at intervals along its length by stands displaceable in a direction perpendicular to the conveying direction and spaced apart a predetermined distance from one another by thrust members, the thrust members are articulately connected to the stands, by joints or links, in such a way that the flexibility of the joints or links are restricted so that a predetermined relative angular position of two adjacent stands cannot be exceeded. As shown, the conveyer belt consists of a series of plates 3 interconnected by flexible portions 4 and covered by a rubber sheet 2. The stands of the framework each consist of a transverse base member 26 supported on castors 51, and supports 28, 29 for rollers 7, 9 and 37 which guide and support upper and lower runs of an endless driving element 8 of extruded rubber having a steel cable core and being secured to the plates 3. Rollers 9 and 37 are carried on separate stub shafts 34, 38 while roller 7 is carried on an axle 35 secured between the supports 28, 29. Support 28 is pivoted at 30 to base member 26, while support 29 is adjustably secured to the base member by fishplates 31 and bolts 32 engaging a slot 33 in the base member. Each thrust member 52 is extensible at each end by a threaded connection with an extension bolt 54 having a ball head engaged in a cup 55 secured across the supports 28, 29 whereby the tension of the belt may be adjusted. The angular play of the bolt 54 in the cup 55 limits the horizontal angle through which each stand can be deflected relative to the adjacent stand.
Patent GB-858684-A (GB)
Title: Improvements in and relating to operating mechanism for doors and the like
Inventor: LORD WILFRED
IPC: E05F15/56
Filed: 1958-05-15
Abstract: 858,684. Door operating appliances. PETERS & CO. Ltd., G. D. May 7, 1959 [May 15, 1958], No. 15664/58. Class 65(1). A door or the like of the sliding or folding leaf type is operated by a screw device and is wholly supported thereby. Two sliding doors (not shown) are each carried by a pair of brackets 8 depending from an inverted channel-shaped trolley 9, and the trolleys, ride on shafts 1, 2, respectively coupled together in alignment at 3 and formed with right- and lefthand scrolls 7. Each trolley carries two pairs of V-faced rollers 12, 14 which are inclined to the shaft axis so as to engage the scroll at the top and bottom, respectively, of the shaft. The rollers may be replaced by sliding members or by a series of balls located in grooves as in a ball nut. The doors may be operated by rotating the shafts or by directly displacing one door or trolley.
Patent GB-670041-A (GB)
Title: Improvements in liquid-level gauges
IPC: G01F23/02
Filed: 1949-06-13
Abstract: 670,041. Gauge glasses. SEETRU PRODUCTS, Ltd., and TAYLOR, L. June 13, 1950 [June 13, 1949; July 26, 1949; Dec. 1, 1949], Nos. 15689/49, 19665/49 and 30922/49. Class 123 (i). A liquid level gauge for a storage tank &c. comprises a narrow annular collar 2 which is adapted to receive a screwthreaded member, such as the hollow shank 16 of an ordinary draw-off tap 17 engageable with an opening in said tank, and is provided with an upright socket 3 to locate the lower end of a gauge glass 1. The glass 1 may be secured in the socket 3 by a packing ring 8 with gland nut 7, and communication between the inside of the tank and the gauge glass is established by co-operating ports 4, 18 in the collar 2, and tap shank 16 respectively, flow through these ports being controlled by a stop-cock on the socket or, alternatively, by a spring-pressed ball valve 24 which has an associated operating-rod 28 depending through the glass 1 from the cap 11 of a metal &c. protecting tube 10 surrounding said glass. The protecting tube 10 may be a sliding fit on the socket 3 and formed with graduated elongated apertures 12 at its front side, and preferably its rear is provided with further level or volume-indicating slots 30, 31.
Patent GB-500332-A (GB)
Title: Improvements in road lighting devices
IPC: E04H12/02
Filed: 1938-05-26
Abstract: 500,332. Street lamps. CONCRETE UTILITIES, Ltd., MARQUES, C. A., and THOMAS, F..May 26, 1938, No. 15696. [Class 75 (iv)] A road-lighting device comprises a standard or bollard 1 having one or more elongated reflective panels 4 each terminating at the lower end in a step 5 in which is disposed a window 6 through which light may pass from a source enclosed within the base of the standard or bollard. The standard 1, Fig. 1, may support the normal lighting fitting 2, and, in this case, there may be provided a time switch for cutting out the main source 2 and simultaneously putting into circuit the lamp housed in the base of the standard.
Patent GB-542545-A (GB)
Title: Improvements in or relating to wing nuts
IPC: F16B37/16
Filed: 1940-10-28
Abstract: 542,545. Nuts. CRIGHTON, G. F. , Oct. 28, 1940, No. 15758. [Class 89 (i)] [Also in Group XXII] A sheet metal wing nut has a portion 10 with a flange and threaded hole 11 and a finger piece portion 12 bent through an angle about an axis which inter-sects the axis of the hole. Thefinger piece portion may have a rectangular or semi-circular outer edge or consist of two part-circular spaced portions for engagement by the finger and thumb.
Patent GB-402774-A (GB)
Title: Improvements in or relating to the manufacture of safety glass
IPC: B32B17/10
Filed: 1932-06-04
Abstract: 402,774. Compound glass. BONNIKSEN, C. W., and PROTECTOGLASS, Ltd., Farnham Road, Slough. June 4, 1932, No. 15842. [Class 140.] In making compound glass of the kind described in Specification 387,721 from glass sheets coated with celluloid &c., the sheets are arranged with the coated faces slightly separated on a cradle 16, lowered thereon into a bath 11 of a high boiling-point softener, and pressed together while immersed between a hinged pressing-member 42 and the cradle. The cradle consists of a number of grids 16 joined by a bar 18 connected to a rod 20 depending from a pneumatic cylinder, vertical movement of the grids 16 between grids secured to the backing 12 of the tank 11 being facilitated by grooved wheels 17. The pressing- member consists of a number of grids hinged at 41 and united together by a bar 44 which is connected to the rams 46 of pneumatic cylinders. The grids 16 are provided with glass supporting brackets 22 some of which can be retracted into slots in the grids. The glass-engaging surfaces of the fixed and sliding grids and the pressing members are provided with spring-mounted studs 34, 43. The operation of the pneumatic cylinders may be so controlled that after placing the sheets in the cradle and setting a lever, the sequence of operations proceeds automatically, the cradle remaining submerged for a predetermined interval, and being finally raised for the removal of the compound glass. The Provisional Specification describes also means for effecting registration of the glass sheets after immersion, and an auxiliary pressing member which comes into action before the main pressing member.
Patent GB-1523268-A (GB)
Title: Airborne target
IPC: F41J9/08
Filed: 1977-04-15
Abstract: 1523268 Aerial targets HAYES INTERNATIONAL CORP 15 April 1977 [20 April 1976] 15852/77 Heading B7W [Also in Division H4] The visual and radar characteristics of an aerial target are augmented without drag penalty by the inclusion within the target body 10 of a light source 18 and a radar reflector 22, the reflector being located in front of the light source and being substantially transparent to the light. The reflector is formed from an open mesh of stainless-steel wire.
Patent GB-999919-A (GB)
Title: Servo control system and apparatus therefor
Inventor: DENNE PHILIP RAYMOND MICHAEL
IPC: H02P29/00
Filed: 1963-04-23
Abstract: 999,919. Change-speed control. FLIGHT REFUELLING Ltd. June 12, 1964 [June 23, 1963], No. 15997/63. Heading F2D. [Also in Division G3] A variable-speed gear servocontrol system includes servo means operatively coupled to the gear, means for producing electric signals indicative of any difference between a predetermined and the actual value of a parameter of the system, e.g. output speed or gear ratio, and electronic control means responsive to the signals for effecting control of the servo unit and of the gear. In the arrangement shown for controlling the output speed of a gear unit 1 speed-proportional signals derived from the output shaft 4 by a tachometer and reference signals from a source 9, such as a potentiometer, are fed to a differential amplifier 8. The amplified error signals are fed to pulse generators 11, 12 connected to the servo unit 13 which regulates the setting of a ratio control shaft 14 for the gear unit 1. A control loop 16 between the servo unit 13 and the amplifier 8 prevents hunting. If the speed of the gear input shaft 3 is substantially constant control signals may be taken from the regulator shaft 14 to control the ratio of the gear unit 1, Fig. 2 (not shown). Circuit details.-The amplifier 8 preferably includes a pair of PNP transistors in long-tailed pair connection, the tail of the pair using a further transistor with large emitter resistance and with the base clamped to a Zener diode. The pulse generators 11, 12 operate individually according to the sense of the error signal and each includes a PNP transistor with the base connected to the collector of one of the amplifier transistors and the amplified current is used to positively charge a capacitor connected to the emitter electrode of a unijunction transistor. Servo unit 13 is preferably a motor of the D.C. shunt wound commutator type with an integral worm gear for operating regulating shaft 14, the armature being supplied through a pair of parallel-connected silicon controlled rectifiers arranged in opposition and the conducting angle of which is varied to increase stability. Control loop 16 is a derivative feedback loop in which a smoothed portion of the servomotor armature voltage is fed back to the emitters of the amplifier to oppose the applied error voltage, the correction speed decreasing with the error signal to minimize overrun and hunting.
Patent GB-630804-A (GB)
Title: Improved heating panels for buildings
IPC: F24D13/02
Filed: 1947-06-18
Abstract: 630,804. Electrically heated panels. CLIN & CIE, E. June 18, 1947, No. 16042. Convention date, May 22, 1946. [Class 39 (iii) ] A heating panel is formed from a plurality of wires 6' initially arranged in parallel but in which adjacent pairs of wires 6 are connected together at regular intervals in the manner shown in Fig. 3, the wires then being disposed between cardboard sheets. The connecting means 7 may comprise thin metal plates clamped about the wires in corrugated form or the wires may simply be twisted together at the desired points so as to finally dispose the wires as shown in Fig. 8. Any length of heating panel may be divided off by cutting along a line x 1  y 1  or x 2  y 2 . The outer outer wires 4, 5 act as current supply conductor.
Patent GB-734726-A (GB)
Title: Improvements in or relating to sawtooth current generators
IPC: H03K4/34
Filed: 1953-06-11
Abstract: 734,726. Saw-tooth generating circuits. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. June 11, 1953 [June 11, 1952], No. 16073/53. Class 40 (6). In a saw-tooth current generator of the type in which the output valve is operated in such a manner that grid current flows, the input to the grid is obtained from a blocking oscillator of the type in which the cathode is regeneratively coupled to an electrode of the blocking oscillator valve other than the output electrode, whereby the generation of spurious oscillations in the blocking oscillator as a result of the grid current impulse is reduced. The Figure shows a conventional saw-tooth current output circuit 1, 5 supplied with a saw-tooth voltage on its grid such that-grid current flows at the end of the sweep. The saw-tooth is supplied from a blocking oscillator circuit comprising a valve 6 having its cathode circuit 8 tuned to the sawtooth repetition frequency and connected to a tap on a feed-back coil 9.
Patent GB-1037035-A (GB)
Title: Improvements in or relating to machines suitable for use in the manufacture of shoes
IPC: A43D47/00
Filed: 1963-04-24
Abstract: 1,037,035. Inseam tramming machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. April 24, 1963 [April 25, 1962], No. 16080/63. Heading A3B. An inseam trimming machine incorporates means for inseam rubbing and beating and comprises an arcuate trimming knife 20 which reciprocates with a serrated rubbing iron 21, the serrated edge being lower than the knife cutting edge, a feed wheel 22 which is also a rotary shearing member, a freely rotating welt crease guide 24 which acts as an anvil for the inseam rubbing, and a rotating rib guide 26 which assists in feeding the shoe. The parts of the machine are all driven from a main drive shaft 32 which drives the shearing wheel 22 via a worm 40 and worm-wheel 38, the rib guide 26 via pulleys and belts 100, 98, 96, 92, 90, 88, bevel gears 84, 86 which drive a shaft 78 and thence the shaft 76 through meshing gears 80, 82 and the knife 20 and iron 21 are reciprocated on the end of lever 124 pivoted on stud 126 by means of a connecting rod 132 oscillated by an eccentric shaft 134 which is rotated from the main shaft 32 by way of belts and pulleys 138, 148, 146, 144, 142. The rib guide 26 and welt crease guide 24 are moved out of operative position for insertion of a work piece by means of a treadle action by the machine operator which depresses a collared rod 52 and pivots a ball crank lever 54 clockwise, moving an arm 61 of the lever upwardly against the spring returned lever 46 carrying the welt crease guide 24. At the same time a lock nut 104 on the rod 52 presses down on a spring-returned arm 102 attached to the rib guide bracket 66 on the shaft 68, and rotates it about the shaft 68, thereby moving the welt crease guide 26 outwardly away from the feed wheel 22 for insertion of a shoe.
Patent GB-181375-A (GB)
Title: Improved process of producing anhydrous magnesium chloride
IPC: C01F5/32
Filed: 1922-06-09
Abstract: Anhydrous magnesium chloride is prepared by the action of chlorine on a mixture of magnesium oxide and carbon at a temperature below the melting-point of magnesium chloride, the reaction materials being preferably dry, and the carbon free from gas.  The reaction is started at 300 DEG  C. or above, whereafter a sufficiently high temperature is maintained by the heat of the reaction.  Fusion or sintering of the chloride may be prevented by keeping the charge in motion, for example by carrying out the reaction in a revolving converter.  The temperature of the charge may also be controlled by feeding in fresh quantities of material and by adjusting the velocity of the chlorine current.
Patent GB-664455-A (GB)
Title: Manufacture of ido-pyrimidyl-mercapto-carboxylic acids and derivatives thereof
Filed: 1949-06-16
Abstract: Iodopyrimidylmercaptoacetic acids of the general formula <FORM:0664455/IV (b)/1> (wherein R represents hydrogen or an aliphatic hydrocarbon radical of 1-7 carbon atoms), and salts and esters thereof, are manufactured by treating a 4-hydroxypyrimidyl-(2)-mercaptoacetic acid of the formula <FORM:0664455/IV (b)/2> or a salt or ester thereof with an iodinating agent (e.g. iodine or iodine monochloride, advantageously in a diluent of organic or aqueous nature), or by reacting a 2-mercapto-4-hydroxy-5-iodopyrimidine of the formula <FORM:0664455/IV (b)/3> with a halogenacetic acid or a salt or ester thereof (advantageously in the presence of a diluent, such as water or an organic solvent, and an acid-binding agent).  Esters so obtained may be hydrolysed, whilst the free acids may be esterified or converted into salts.  The products are useful therapeutically as anti-thyroid agents.  In examples: (1) 4-hydroxy-6-methylpyrimidyl-(2)-mercaptoacetic acid is heated with iodine in aqueous caustic soda or sodium carbonate solution; (2) 2-mercapto-4-hydroxy-5-iodopyrimidine is heated with chloracetic acid in aqueous caustic soda; (3) 4-hydroxy-6-n-propylpyrimidyl - (2) - mercaptoacetic acid is treated as in (1) (using sodium carbonate solution); the product may be converted into its calcium salt by dissolving it in caustic soda and adding calcium chloride, or into its ethyl ester by boiling it with absolute ethyl alcohol and a small quantity of sulphuric acid.  Specification 646,070 is referred to. The Specification as open to inspection under Sect. 91 comprises also the manufacture of amides of the acids of the first general formula above and of analogous acids, salts, esters and amides in which the iodine may be replaced by another halogen, the methylene group by another bivalent hydrocarbon radical, and/or the aliphatic hydrocarbon radical R by another hydrocarbon radical (e.g. of the cycloaliphatic or aromatic series).  Bromamides and bromimides such as bromosuccinimide are specified as brominating agents.  This subject-matter does not appear in the Specification as accepted.
Patent GB-920517-A (GB)
Title: Polymers containing silicon
Inventor: POLLOCK JOHN MACLELLAND
IPC: C08G77/60
Filed: 1960-05-09
Abstract: Organosilicon polymers are made by reacting, under moisture-free conditions, a silicon isocyanate of the formula RnSi(NCO)4-n or (RO)nSi(NCO)4-n, wherein n is 0, 1 or 2 and each R is a substituted or unsubstituted alkyl, aryl or alkaryl group, with an organic compound whose molecule contains at least 2 reactive H atoms, e.g. ethylene and propylene glycols, glycerol, ethylene diamine, diamino toluene, polyethylene oxide ethers, polypropylene oxide ethers and polydiethylene glycol adipate.  The reaction is effected by mixing the reactants together, with or without a solvent, and maintain the mixture with the temperature range of -20 DEG  to 120 DEG C. for a period.  In examples (1) di-t-butoxy silicon diisocyanate was added to 2:4-diamino toluene in dry dioxane, and the mixture was refluxed at 105 DEG C. to yield, when freed of solvent, a viscous liquid; (2) a branched chain polydiethylene glycol adipate was heated with Si(NCO)4 to yield a semitransparent rubbery polymer; (3) Si(NCO)4 was reacted with ethylene diamine in ether to yield a white powder which could be moulded under heat and pressure.  Uses: For making laminates from glass fibre; for making mouldings; for water-proofing textiles; and for inclusion in paints, varnishes and foams.  Specification 888,938 is referred to.