baber/WOPTO huggingface dataset:
Patent GB-497113-A (GB)
Title: Improvements in or relating to the administration of anesthetics
IPC: A61M16/10
Filed: 1937-11-18
Abstract: 497,113. Gas-metering apparatus; gas bags ; valves. OHIO CHEMICAL & MANUFACTURING CO. Nov. 18, 1937, Nos. 31745 and 31746. Convention dates, Dec. 11, 1936 and July 2, 1937. [Classes 54 and 135] [Also in Group VI] In anµsthetic-administering apparatus the flow of gas or vapour is under the control of a device actuated by the patient or by the anµsthetist, and permitting only a predetermined small quantity of gas to flow at each actuation, the flow ceasing whenever the device is stationary in any position. The control device 23, Fig. 2, is actuated by a hand-pressed lever connected to a Bowden cable mechanism 40, 40a and comprises inlet and outlet spring- pressed valves 24, 27, mounted by screwnipples on the casing 23, and having spindles 24e, 27e engageable by a rocking arm 30. The arm is pivoted in a spindle 31 and is normally biassed by a spring 34 on its operating rod 32 to hold valve 27 open. On pressing up rod 32, by a head 36 on the Bowden wire 40a clamping a sealing diaphragm 38, arm 30 is rocked first to close valve 27 and then open valve 24, thus admitting a small quantity of gas which on reversal of the arm is drawn through valve 27 by inhalation of the patient. The casing 23 is connected by a pipe 25 with a small reservoir which may be housed within the stand pillar of the apparatus. In a modification, the outlet valve 102d, Fig. 5, is slidably mounted and spring-pressed upwardly in a frame 113 to engage a seating 102 in the outlet pipe 117 when the frame is raised by the Bowden cable head 107 against a spring 119. A rod 115 on the frame engages the spindle 116 of, and lifts the inlet valve 101 after the outlet valve is closed. Bores 105 in the valve-seating block 104 conduct the gas to the outlet. A gas-andair bag 49, Fig. 3, is mounted to surround a non-collapsable corrugated rubber tube 43 having perforations 44 communicating with the bag. The tube 43 has at one end a ring of air inlets 47 controlled by a disc valve 48, and at the other a disc valve 51.
Patent GB-723638-A (GB)
Title: Method of allaying dust
IPC: C09K3/22
Filed: 1953-06-15
Abstract: The dissemination of mineral fines into the atmosphere is prevented by contacting the surface of the finely-divided minerals, in the presence of moisture, with a water-soluble or water-dispersible ionic linear addition polymer of a monoethylenically unsaturated compound or a water-soluble salt thereof, having an average molecular weight of at least 10,000, in amounts of 0.2 to 15 pounds per 100 square feet of surface area. The process may be applied to any mineral fines such at flotation tailings and cyanidation tailings, in coal mines or in drilling operations or metal-grinding.  The polymer produces a film-like crust over the surface of the particles.  The polymers or salts may be applied in water solution, such as by spraying, or as a mixture with a portion of fines spread over the main bulk and then wetted with water or allowed to take up water from the main bulk or from the atmosphere.  The preferred polymers or salts thereof are polymers of unsaturated aliphatic monocarboxylitic acids such as acrylic acid, methacrylic acid and vinyl acetic acid and salts thereof.  These polymers may be obtained by polymerizing the acid itself or derivatives having groups hydrolyzable to acid groups such as nitrile, amide or ester groups.  The unsaturated acids may be polymerized to form homopolymers or co-polymerized with compounds such as vinyl pyridene, vinyl acetate, styrene, vinyl ethers, vinyl halides or isobutylene.  Polymers of polybasic unsaturated acids are included such as maleic anhydride co-polymerized with styrene, vinyl acetate and acrylates. Polymers containing cation-active groups may be used.  Polymers other than the acrylic acid type may include polymers based on styrene and other vinyl-substituted compounds. Examples from a large number of specified polymers comprise polyacrylic acid; a terpolymer of ethyl acrylate, acrylamide and acrylamidopropylbenzyldimethyl ammonium chloride; a sodium salt of a hydrolyzed polymer of acrylonitrile, and a calcium salt of a hydrolized copolymer of vinyl acetate and maleic anhydride. Examples other than the acrylic acid type include copolymers of butadiene and 2-vinyl pyridiene, polydienethylaminostyrene quarternized with benzyl chloride, and quaternized copolymers of vinyl alcohol and morpholinylethylvinyl ether.  The polymers may be used with the usual surface-active agents such as dioctyl sodium sulphosuccinate.
Patent GB-324707-A (GB)
Title: Improvements in brake gear for road and rail vehicles
IPC: B60L7/24
Filed: 1928-11-01
Abstract: 324,707. Garrett & Sons, Ltd., R., and Deane, W. H. Nov. 1, 1928. Electric and magnetic; hand and foot actuation. -A road or rail vehicle is equipped with one or more eddy current brakes, the magnetic field of which is under'the control of the driver, together with a friction brake of any usual type, and both brakes are controlled by one handle or pedal the movement of which first applies the eddy current brake and afterwards applies the friction brake. A pedal 2, Fig. 1, splined upon a shaft 3 which carries a crank 4 is joined by a rod 5 to a friction brake and through rod 6 to the operating mechanism of the eddy current brake. Rod 6 is pivotally connected to a cam 7 against the edge of which bears a roller 8 carried by a pivoted arm 9 connected by an adjustable link 10 with a crank 11 upon the spindle of an electrical controller. A spring 12 holds the roller 8 against the edge of the cam 7 and a spring 13 serves as a return spring for the pedal 2. The cam 7 is so formed that during the initial part of its rotation it rotates the crank 11, while in the latter part of its movement it maintains the crank 11 in its " on " position. The rod 5 is actuated through the lost-motion coupling shown in Fig 3 ; the point at which the friction brake is' applied can be varied by adjustment of a block 14. According to the Provisional Specification, the eddy current brake may comprise an unwound and suitably cooled rotor coupled with each vehicle wheel axle or driving shaft and a wound stator having its supply from a third rail or overhead wire, or from a battery.
Patent GB-520307-A (GB)
Title: Improvements relating to mattresses
IPC: A47C27/06
Filed: 1938-11-04
Abstract: 520,307. Mattresses. MATTISON, N. D. Nov. 4, 1938, No. 31973. Convention date, Oct. 7, 1937. [Class 52 (iv)] In a mattress of the kind in which parallel rows of springs are connected to at least one surface to form a surface network, flexible to localized vertical loads but resistant to lateral extension, the mattress is, divided transversely into sections differing in the resistance to deflection under a vertical load, the middle section upon which the hips of the sleeper rest being adapted to support a greater load per unit of top area with a given displacement than the section upon which the shoulders are supported. The coils 2 are connected together and to lateral rods 4 by metal clips to provide resistance to lateral extension. The coils are also connected by similar clips 6 to double rods 5 as shown. The springs in the sections differ in strength and preferably a row of springs is arranged between each two sections and having a strength intermediate of the strengths of the sections.
Patent GB-321920-A (GB)
Title: A process for recovering sulphur and iron oxide from ironcontaining sulphide ores or the like
IPC: C22B1/08
Filed: 1928-05-17
Abstract: 321,920. Elkington, H. D., (Comstock & Westcott, Inc.). May 17, 1928. Divided on 321,911, Grant of Patent opposed. Sulphur.-Materials containing iron sulphide such as ores, concentrates, or mattes are treated with chlorinating agents in the amounts required to displace sulphur and to convert the iron into ferric chloride, and other metals, if present, with chlorides, the sulphur and ferric chloride being successively removed as vapours. The chlorination takes place in two stages, which may be carried out in the same, or in separate chambers. In the first stage, ferrous chloride is produced, together with sulphur, which goes to a condenser. In this stage, the temperatures and amounts of chlorinating agent are preferably insufficient to form sulphur chloride or ferric chloride in the exit gases. In the second stage, the ore or material is further chlorinated to ferric chloride, which is removed as vapour. The ferric chloride vapours may either be burnt directly with air to form ferric oxide and dilute chlorine; or, when excess of chlorinating agent has been used in the second stage, they may be condensed, leaving residual gases which are applied to the chlorination of fresh ore, the condensed ferric chloride in this being used to prepare a chlorinating agent and ferric oxide as before. The ferric chloride may be burnt with superheated air with which a small proportion of producer gas is mixed, in order to obtain ferric oxide in a suitable granular condition. The air entering the burner may be preheated by the dilute chlorine leaving it, and the producer gas is then preferably delivered to the air-supply pipe, so as to secure a balancing of pressure in the heatexchanging system. By using the dilute chlorine obtained by burning the ferric chloride for the chlorination of further material, the process may be made cyclic. In an example, finely granulated pyrites is caused to move with agitation in countercurrent to dilute chlorine coming from a burner for ferric chloride. At one end of the apparatus, at which the ore enters and dilute sulphur vapours are withdrawn, the temperature is preferably maintained around 350‹C. At the point where dilute chlorine enters and chlorinated ore leaves, the temperature is kept low enough to permit ferric chloride to exist in the solid state, the heating of the chlorinated ore to volatilize the ferric chloride being a separate operation. When using batch operation, with stationary ore, chlorination is facilitated by sizing the finely ground ore and using the various sizes separately, either as superimposed layers or as different charges. When complex ores such as pyrrhotite, chalcopyrite, or pentlandite are used, metals such as silver, copper, zinc, and lead are converted to anhydrous chlorides, while gold and platinum, if present, may remain as such. These chlorides and metals remain with the gangue, and may be worked up therefrom by known methods. Specifications 14278/99, 7444/10, 255,639, 306,107 and 321,911 are referred to.
Patent GB-160540-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C5/48
Filed: 1919-12-20
Abstract: 160,540. Greene, W. Friese-, Thomson, J. N., and Colour Photography, Ltd. Dec. 20, 1919. Toning; colour photography.-Toning-solutions are described more particularly for obtaining one element of a two or three colour photograph and which give a range of colours extending from yellows to deep reds. The ingredients are ferricyanide of potassium, uranium nitrate, rose bengall, naphthol yellow, acetic acid, and iodine. In addition to or in substitution for the iodine, an isocyanine dye such as pinacyanol or sensitol red may be used. In preparing the solution, the ferricyanide of potassium, uranium nitrate, acetic acid, and iodine (if used) are dissolved in water and this solution added to a solution of the other ingredients in alcohol. A fixing-bath of ¢oz. of hypo and 60gr. of metabisulphite in 20oz. of water is used.
Patent GB-823866-A (GB)
Title: Stretch yarns, fabric, and method of making same
IPC: D02G3/32
Filed: 1956-10-22
Abstract: 823,866. Yarns and threads. ROTH CO. Inc., C. H. Oct. 22, 1956 [Oct. 31, 1955(2)], No. 32034/56. Drawings to Specification. Class 120(3) [Also in Group VIII] Composite yarn is made by wrapping at least one cotton yarn (12-80 count) which has been twisted in one direction e.g. 5-20 turns per inch S or Z about at least one stretch, thermoplastic yarn e.g. 50-300 denier nylon, to which a latent torque has been imparted in the opposite direction. while imparting a lesser number of turns per inch e.g. 2¢, to the composite yarn than was originally imparted to the cotton yarn. The stretch yarn(s) may be such as produced by twisting, heat-setting and untwisting multifilamentary yarn(s) with a final ("producer") twist of 0-4 turns per inch; yarns of similar or opposite twist and/or torque and equal denier may be plied to form the core for the composite yarn. In a process for loosely wrapping, the cotton yarn component is maintained under the lesser tension e.g. by a 5 grms. margin. Oil e.g. 3¢% by weight, may be applied as a lubricant and/or to reduce electrostatic charge during subsequent knitting into stretchable fabric which is stated to have the appearance and handle of cotton goods (see Group VIII). The cotton and/or thermoplastic yarn(s) may be dyed separately or in combination.
Patent GB-1345811-A (GB)
Title: Free-flowing particles of solid tacky synthetic thermoplastics  materials and processes for their manufacture
IPC: C08J3/12
Filed: 1971-07-08
Abstract: 1345811 Powder coated plastics particles CHEMISCHE WERKE HULS AG 8 July 1971 [9 July 1970] 32079/71 Heading B5A [Also in Division C3] Particles of synthetic thermoplastic material which are solid but tacky at room temperature are rendered free flowing by coating them with powder. The particles are produced from a hot melt and preferably coated simultaneously with cooling. The particles may, e.g. be atactic polypropylene, atactic polybutene-1, examples relating to this material being given, or plasticized P.V.C. The powder may be inorganic, e.g. talc, asbestos, baryte or whiting; or organic, e.g. cork or plastics especially in the case of the atactic polymer particles which may be powdered with the isotactic form of the same polymer or with the isotactic form of a compatible different polymer. The proportion of powder coating by weight should be from 0À5 to 25%. The particles may be spherical, flat, cylindrical or block-shaped and should be between 1 mm. and 30 mm. across. The powder size should be between 2 Á and 1000 Á. The particles can be produced from a hot melt Fig. 1 and 2, not shown, dripping on to a moving belt covered with a uniform layer of powder by means of metering devices and a weir (and optionally an optical scanner) the imbedded particles then being covered with a further powder layer, the belt cooled, and the powder and particles separated by sieving. Alternatively the forming apparatus may comprise a rotating spray disc discharging into a fluidized bed of powder (Fig. 3 or 4, not shown), or the particles may be extruded, cut, thrown off into a drum sieve together with powder and then separated (Fig. 5, not shown). The extruded ribbon may be pre-powdered on a belt before cutting into particles.
Patent GB-426067-A (GB)
Title: Improvements in and relating to compositions for use as insulation for heat and sound
IPC: C04B28/26
Filed: 1933-11-17
Abstract: A waste material from the manufacture of paper, viz. "lime sludge grouts" is mixed with a substance which generates gas, e.g. aluminium powder, whereby the composition becomes cellular when placed in position as a heat insulator.  The composition may be made lighter by adding an infusorial earth, diatomite or its equivalent, and stronger by adding asbestos, preferably the variety known as "amasite." Sodium silicate, magnesium sulphate, and bleaching materials may also be added.  A thin coat of the composition mixed with water may be applied and allowed to dry, and a second or third layer then added.
Patent GB-1007183-A (GB)
Title: Improvements in and relating to coated films
IPC: C08J7/056
Filed: 1962-08-23
Abstract: 1,007,183. Coated polystyrene film. UNION CARBIDE CORPORATION. Aug. 23, 1962 [Aug. 25, 1961], No. 32433/62. Heading B2E. A transparent self-supporting polystyrene film resistant to fogging upon exposure to a humid environment has a coating thereon of polyethylene oxide having a molecular weight above 1500, e.g. from 1500 to 5,000,000, hydroxyethyl cellulose having a viscosity measured at 25 C. as a 2% by weight aqueous solution of from 0.9 to 15,000 centipoise, or a mixture thereof. The polyethylene oxide and the hydroxyethyl cellulose may be present in the coating in approximately equal amounts by weight. The coating may be from 0.0003 to 0.0004 mils thick. The coated film may be produced by applying to the surface of a hydrophilic polystyrene film 10 a coating of a less than 2% by weight solution in a polar hydroxylated solvent, e.g. water or lower alkanols such as ethanol and isopropanol, of the polyethylene oxide, hydroxyethyl cellulose, or a mixture thereof, and evaporating off the solvent, e.g. by blower 30 and infra-red lamps 32. The polystyrene film is rendered hydrophilic by subjecting the film to flame treatment and chemical reagents, or a corona discharge by passing the film over an insulated roller while discharging a high frequency current through the film. The polyethylene oxide may be a copolymer of ethylene oxide with minor amounts of other polymerizable oxides, e.g. propylene oxide, epoxybutane, and styrene oxide. The coating may be applied by brushing, dipping, spraying and roller coating using, for example, two or preferably three rolls 16, 18, 20 to transfer the solution via wick 24 from tank 22 to the film surface.
Patent GB-201482-A (GB)
Title: Improvements in umbrellas
IPC: A45B25/12
Filed: 1922-11-28
Abstract: 201,482. Shelvoke, H. C. Nov. 28, 1922. Holding closed ; sticks.-The handle a, Fig. 2, of an umbrella is slidable on the stick b and has a tip-cup n rigidly secured thereto. The handle and tip-cup are retained in either the position in which the ribs are free, or the position in which they are encircled by the tip-cup, by means of a pin d fixed to a sleeve c passing through a slot e in the stick and engaging bent springs f. These springs may be replaced by a spring having notches therein for holding the pin d. According to the Provisional Specification, a spring latch on the stick engages recesses formed in the sleeve.
Patent GB-325738-A (GB)
Title: Improvements in or relating to covers for lavatory seats
IPC: A47K13/16
Filed: 1929-07-30
Abstract: 325,738. Cox, J. S., and Hot, H. G. July 30, 1929. Seat-guards.-A guard of soft soluble crepe material has an elliptical portion severed therefrom except at the points b, c and along the line e, the creases of the material being parallel to the major axis of the elliptical portion.
Patent GB-1482288-A (GB)
Title: Tubular heat exchangers
IPC: F28D1/053
Filed: 1974-07-24
Abstract: 1482288 Pipe; joints SOC ANON DES USINES CHAUSSON 24 July 1974 [6 Sept 1973] 32658/74 Heading F2G [Also in Division F4] In a heat exchanger, e.g. a vehicle radiator, comprising a fin and tube core assembly extending between tube and plates 3, and lateral plates 13 bounding opposed sides of said core assembly and extending between header tanks 9 1 , 9 2  each having a perforate wall 9a into which the ends of said tubes 1 project, the ends of the lateral plates 13 1  are constructed to co-operate with the header tanks in a manner such that said headers are urged towards one another thereby compressing resilient material 4, which is located between each header wall 9a and tube plate 3, to form a fluid tight joint around each tube 1. As shown, the upper end 20 of header 9 1 , which has a shoulder 24 defining an internal ledge adapted to receive an annular member 25 carrying an upstanding filler tube 26, is formed with flanged edges 21 which lockingly cooperate with suitably contoured protrusions 32 extending inwardly from flanged edges 31 at one end 30 of the lateral plate 13 1  upon rotation of said plate in the direction of arrow f 1 . The other end 34 of said lateral plate 13 1  is formed with locking lugs 34a which are resiliently clipped over lateral embossment 23 on the other header 9 2  A gasket 29 is held between the annular member 25 and the end portion 30 of the lateral plate 13 1 ; a cap 27 closes the filler tube 26. Each header tank is made of synthetic resin, has a cross-section which progressively increases or decreases across the core assembly, and is formed with an inlet or outlet connection 18 and fixing lug 19. The tubes 1 may be of circular, rectangular or oval cross-section. In an alternative embodiment (Fig. 1) the ends of the lateral plates (13) are apertured to receive projections (10) on the header tanks, clamping means (14, 15) being provided to hold the lateral plates (13), in position; the tubes extend vertically.
Patent GB-734303-A (GB)
Title: Improvements in arylethers of glycerol bis-chloralhemiacetal
IPC: C07C43/23
Filed: 1952-12-23
Abstract: The invention comprises aryl ethers of glycerol-bis-chloralhemiacetal of the general formula <FORM:0734303/IV (b)/1> wherein X represents a halogen, hydrogen or an alkyl group, and the preparation thereof by reacting a compound of the general formula <FORM:0734303/IV (b)/2> wherein X has the above significance, with chloral in the presence of an anhydrous non-polar organic solvent, e.g. benzene or toluene.  The preferred compounds are those in which X represents a methyl group or a chlorine atom.  Chloral may be used in a slight excess for the above reaction.  In the examples 1-phenoxy-2,3 - bis - (2,2,2 - trichloro - 1 - hydroxyethoxy)-propane and the corresponding o-methylphenoxy and p-chlorophenoxy compounds are prepared.  a ,b  - di - (b 1 - trichloro - a 1 - hydroxyethoxy)-g -hydroxy-propane is prepared by reacting glycerol and chloral.  Aryl ethers of the general formula <FORM:0734303/IV (b)/3> wherein X represents a halogen, hydrogen or an alkyl group, are prepared by reacting the sodium salt of the required phenol with 3-chloro-1,2-propanediol.
Patent GB-774723-A (GB)
Title: Improvements in or relating to steering mechanism for road vehicles
Inventor: HAMMOND CHARLES FREDERICK
IPC: B62D5/06
Filed: 1954-11-11
Abstract: 774,723. Vehicle power steering. GEMMER MANUFACTURING CO. Nov. 11, 1954, No. 32679/54. Class 79(5). A vehicle power steering system comprises a transverse hydraulic motor A having closed end tubes D secured to the vehicle frame B and a central tube C telescopically engaging the end tubes and divided into two chambers, the central tube being connected by links K to the steerable wheels M and by a drag link J to a manually operable steering mechanism controlling valves G<SP>3</SP> to pressurize the chambers. As shown a steering column I is connected through a steering gear to a drop arm I<SP>2</SP> connected by the link J to a lever H, the link J being guided for axial movement only by a bracket secured to the motor A. The chambers of the tube C are divided by a member F to which the lever H is pivoted. The tube C is moved relative to the tubes D by hydraulic pressure developed by an engine driven pump on the same shaft as the electric generator O, the pump being connected by conduits P, Q to the valves G<SP>3</SP> arranged within the member F and controlled by the lever H. The end H<SP>3</SP> of the lever H arranged within a recess F<SP>1</SP> in the member moves the valves G<SP>3</SP> relative to cylinders G<SP>2</SP> in the member F, thereby connecting one chamber to the output of the pump and the other chamber to the input of the pump and thus causing the members C, F to be moved transversely of the vehicle relative to the tubes D. In the neutral position the valves interconnect the pressure and return conduits P, Q. The tubes C, D are urged into their neutral or straight ahead positions by springs S each arranged between the closed end of the respective tube D and a shoulder of a member R adapted to abut the member F to compress the spring during steering movement.