baber/WOPTO huggingface dataset:
Patent GB-1224425-A (GB)
Title: Graft copolymers from polyacetals and process for their manufacture
IPC: C08F283/06
Filed: 1969-01-27
Abstract: 1,224,425. Grafted oxymethylene polymers. FARBWERKE HOECHST A.G. 27 Jan., 1969 [27 Jan., 1968], No. 4458/69. Heading C3G. A graft polymer is prepared by grafting an unsaturated monomer on to an oxymethylene homo- or copolymer in a homogeneous phase at a temperature in the range 90‹ to 180‹ C. in the presence of a free radical-forming means and a solvent or solvent mixture boiling at a temperature below 120‹ C. at normal pressure. Specified oxymethylene polymers include homopolymers of formaldehyde or trioxane and copolymers thereof with e.g. a cyclic ether, cyclic acetal or linear polyacetal. The monomer may be a vinyl ester, an ester or amide of acrylic or methacrylic acid, a vinyl aromatic monomer, a vinyl heterocyclic monomer, a vinyl sulphonic acid or a vinyl phosphoric acid. In the examples, vinyl acetate is grafted on to (1) a trioxane-ethylene oxide copolymer in a methylene chloride medium containing ditert.butyl peroxide, (2) a trioxane-1,3-dioxolane copolymer in an aqueous methanol medium containing 2,5- bis(tert.butyl peroxy)-2,5-dimethylhexane and (3) a trioxane-1,3-dioxacycloheptane copolymer in a benzene medium containing dicumyl peroxide. A trioxane/linear 1,6-hexanediol formal copolymer is grafted in Examples 4 and 5 with styrene and methyl methacrylate, respectively in a medium the same as in (3).
Patent GB-386456-A (GB)
Title: Improvements relating to airing and drying cabinets
IPC: D06F58/14
Filed: 1932-02-15
Abstract: 386,456. Hot closets. HAGEMAN, P. J., 35A, Clanricarde Gardens, Bayswater, London. Feb. 15, 1932, No. 4462. [Class 34 (i).] An airing and drying cabinet consists of a back a, to the upper edge and sides of which are hinged a top f and two side-pieces b, c respectively, the front edges of said side pieces having hinged thereto two doors d, e constituting the front wall of the cabinet, and one or more lengths of cord o extending between the upper margins of said side-pieces, the said back being formed, towards the bottom, with a recess or hood g housing an electric or other heater g<1>. Preferably the lengths of cord are constituted by a single length which is laced through holes n. Preferably also the walls of the cabinet or the edges thereof are formed of sheet metal having interlocking projections bent round to accommodate a pintle so as to form hinges h, i, k, while the portions of one edge adjacent the projections of another edge are bent back so as to be in contact with the said projections. The width of the side-pieces b, c is slightly less than half the width of the back a, and the doors d, e are slightly less wide than the sides, so that the cabinet may be folded up as shown in Fig. 2. To provide accommodation for the doors and sides when folded, the side margins of the back a are bent over as at j for the required distance. The lid f, which is not quite rectangular, is provided with a lip m on its front and sides to fit over the top edges of the front and sides. The cabinet may be constructed of metal or other material, e.g. wood, asbestos, or millboard, the necessary hinges being secured thereto.
Patent GB-839593-A (GB)
Title: N-(alpha-hydroxy-beta-trihalogen-ethyl)-pyrrolidones and the process for the production thereof
Filed: 1958-02-12
Abstract: The invention comprises pyrrolidone derivatives of the general formula <FORM:0839593/IV (b)/1> (wherein P represents a pyrrolidone-(2) residue linked through the nitrogen atom and optionally C-substituted by one or two alkyl radicals or one cycloalkyl radical, and X3 represents three halogen atoms which may be chlorine, bromine or both), and the preparation thereof by reacting a pyrrolidone-(2) compound P-H with a trihaloacetaldehyde OHC-CX3 or a hydrate or alcoholate thereof at 0-100 DEG  C., the reaction mixture being distilled to remove water or alcohol when a hydrate or alcoholate of the trihaloacetaldehyde is used.  The products have soporific properties.
Patent GB-193667-A (GB)
Title: Improvements in and relating to splash guards for the wheels of motor vehicles
IPC: B60B7/00
Filed: 1922-02-17
Abstract: 193,667. Wormleighton, H. Feb. 17, 1922. No Patent granted (Sealing fee not paid). Mud-guards rotating with wheels. - A mug-guard comprises an annular brush 10 fitted to a metal holder 9 formed with lugs 11 secured by swing bolts 8 and wing nuts. The swing bolts 8 are pivoted on a rim 6 attached to spokes 3 by bolts 5. Reference has been directed by the Comptroller to Specification 122,056.
Patent GB-1061493-A (GB)
Title: Improvements in tobacco smoke filters
Inventor: WESTCOTT DAVID THOMAS
IPC: A24D3/16
Filed: 1965-02-03
Abstract: A tobacco smoke filter includes a hydrous oxide of manganese (IV). The manganese content of the hydrous oxide is between 48% and 60% and preferably between 50% and 55%.  Preferably the hydrous oxide is manganese (IV) oxide dihydroxide (MnO(OH)2).  The material may be added to a stub or filter, provided in a compartment within the filter, or mixed with a support or binder.
Patent GB-181421-A (GB)
Title: Improvements in safes
IPC: E05G1/08
Filed: 1921-02-11
Abstract: 181,421. Chatwood Safe Co., Ltd., Bruckshaw, H. S., and Clayton, H. Feb. 11, 1921. Safes and strong-rooms. -Relates to safes of the kind that comprise a series of safes or boxes mounted within a strong-room or large safe, and consists in employing vertical and horizontal members having notches and projections which register with each other to form the framework of the safe. Figs. 1 and 3 show the assembled safe; the notched bars a, m interlock and are secured to the back plate b by bolts e in the distance sleeves d, as shown in a detail view of one compartment in Fig. 5. The side plates c and base-plate m<1> fit into grooves in the cylindrical sleeve d and in the plates h, which have concave surfaces h<1> adapted to be compressed against the parts a, b when the bolt e is tightened. The base plate m<1> is secured to the member m by screws m<2>. A door n is hinged at n<1>, means being provided for the exact positioning of the door. The Provisional Specification mentions the securing of the bolt e to the plate b by welding.
Patent GB-1376699-A (GB)
Title: Garment or like article having a slide fastener attached thereto and method of attachment thereof
IPC: A41H37/00
Filed: 1973-01-31
Abstract: 1376699 Attaching fasteners B & W MFG Co Inc 31 Jan 1973 [2 Feb 1972] 4855/73 Heading D1G [Also in Division E2] A sliding clasp fastener 10 comprising two tapes 12, 14 is sewn to two portions 22, 24 of a garment 20 by two seams 42, 44 and a transverse seam 48, or two such seams 48, 50 as shown, provided to form an end stop for the fastener and secure the end of the fastener to the garment. The slider (52, Fig. 6 not shown) may be applied at another work station. As described the seams 42, 44 are stitched simultaneously on a twin needle sewing machine and the right hand needle then disabled to permit its partner to form seams 48 and 50 as a continuation of seam 42. Seams 48 and 50 may overlap. The method is employed where the fastener is supplied in the form of a continuous strip and is severed at 46 on completion of seams 42, 44.
Patent GB-121239-A (GB)
Title: Improvements in Methods of and Apparatus for Making Bodies of Elastic Material.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: B29C33/02
Filed: 1918-03-19
Abstract: 121,239. Jackson, W. J. Mellersh-, (Revere Rubber Co.). March 19, 1918. Balls.-Relates to apparatus for moulding elastic material, and particularly golf or like balls of the form described in Specification 120,658. The mould sections 7, 8, 13, 14 are provided with tapering radial pins 9 - - 14 which converges to a common centre and are symmetrically disposed. Some of the pins may be long enough to support a hard core 1 to be embedded in the material 2 of the ball. In the construction shown, the mould consists of four sections, two 13, 14 of which form the equatorial part of the ball. When moulded, the material is drawn off the pins, and the ball is completed as described in the abovementioned Specification. The mould may be used for a rubber composition, which is vulcanized therein, or for a composition which can be poured into the mould and allowed to set.
Patent GB-1051398-A (GB)
IPC: B29B13/02
Filed: 1965-11-17
Abstract: 1,051,398. Foamed sheets. AMERICAN EXCELSIOR CORPORATION Nov. 17, 1965 [Jan. 12, 1965], No. 48841/65. Heading B5A. [Also in Division C3] An apparatus for foaming a thermoplastic sheet comprises an enclosing chamber, means for conducting a thermoplastic foamable sheet along a path through the chamber, means for providing a heated sheet-contacting atmosphere in the said chamber, and a heated surface or surfaces with which the sheet is brought into contact, the said heated atmosphere and the surface or surfaces co-operating to heat the sheet to a plastic temperature and cause it to foam. The foamed sheet may additionally be passed through embossed rollers on leaving the chamber. The Figure shows suitable apparatus, wherein 10 represents the foamable thermoplastic sheet, 11 is the enclosing chamber, 16 are nozzles providing steam, 15, as the heated sheet-contacting atmosphere and 14 represents rollers acting as heated sheet-contacting surfaces. The foamed sheet 20 is dried by the hot air plenum 21 and 22 and may subsequently be embossed by rollers 23.
Patent GB-262991-A (GB)
Title: Method of and means for balancing cables and land lines, provided or not with compensating leads and earth cables
IPC: H04L5/14
Filed: 1926-02-19
Abstract: 262,991. Tinsley, H., and Gall, D. C. Feb. 19, 1926. Duplex telegraphs,- artificial lines. -An artificial line is adjusted to balance accurately a telegraph line or cable, provided or not with a compensating lead and earth cable, in accordance with outof-balance indications obtained by tests in which the duplex bridge connection is employed with an alternating-current source of adjustable frequency connected to the apex of the bridge and an alternating current detector, preferably tuned to the frequency of the source, connected across the bridge. The bridge is brought into balance for various frequencies over a range of frequencies used in signalling and the data obtained are used to provide indications of the nature, magnitude, and location of the adjustments required in the artificial line. In one arrangement, Fig. 1, the bridge arms are provided, in addition to the usual block condensers H, with variable condensers E, F, variable resistances C, D, and a double-coupled resistance B which for each frequency used in the tests is adjusted to correspond with the reactances of the condensers II. In a modified arrangement the variable resistances C, D are placed between the detector G and the arms of the bridge, and the adjustable condensers E, F between the ends of such resistances adjacent to the detector G and the apex of the bridge. In a further modification, Fig. 3, a variable mutual-inductance L and a variable resistance M are placed between the alternator A and the apex, and are coupled as shown at N to the circuit of the detector. The resistance error and the reactance error at the sending end of the artificial line are calculated for each frequency from the resistance and reactance adjustments required to restore the balance when using any of the above testing arrangements, and are utilized for adjusting the artificial line either empirically, step-by-step over the range of frequencies, or by the use of plotted curves in the following manner. The resistance error and the reactance error are plotted against the frequency as shown in Fig. 4. Curves are also plotted, representing, as shown in Fig. 5, the changes, over the range of frequencies, of resistance and reactance at the sending end due to unit changes of resistance and reactance respectively at predetermined points along the artificial line. The curves of Fig 4 are then analyzed into component curves of the type shown in Fig. 5, and these curves serve to indicate the nature, magnitude, and location of the required adjustments.
Patent GB-1536425-A (GB)
Title: Blood treatment
IPC: A61K35/14
Filed: 1976-01-30
Abstract: 1536425 Blood purification NATIONAL RESEARCH DEVELOPMENT CORP 30 Jan 1976 [6 Fob 1975] 5101/75 Heading C3H A biocompatible material for removing from blood an undesirable substance capable of being bound to a plasma protein comprises a support material rendered biocompatible by a coating of a biocompatible substance, which support material is a manoreticular polymer having an affinity for one or more of the substances unconjugated bilirubin, cholic acid, chenodeoxycholic acid and lithocholic acid. The biocompatible substance is preferably a plasma constituent, e.g. HSA. The affinity of the support material is preferably such that the concentration of one of the substances unconjugated bilirubin, cholic acid, chenodeoxycholic acid and lithocholic acid on the uncoated support material at equilibrium with a 15 mg. per cent solution of the substance in normal human plasma at pH 7.4 is at least 10% of the concentration of the substance on the coated material under identical conditions. The concentration of one of said substances on the uncoated support material may be at least 20% of the concentration of the substance on the coated material under said conditions. The biocompatible material may have a water content which is no greater than 80% by weight, and it is preferably particulate. A biocompatible material according to any preceding claim in which the support material is a synthetic resin, e.g. methacrylic or acrylic polymer or copolymer.
Patent GB-590464-A (GB)
Title: An improved electric valve system for controlling the charging of a condenser and its discharge into a welding or other load circuit
IPC: B23K11/26
Filed: 1943-03-31
Abstract: 590,464. Control systems for resistance welding ; automatic voltage control systems for condenser charging. BRITISH THOMSON-HOUSTON CO., Ltd. March 31, 1943, No. 5148. Convention date, April 1, 1942. [Class 38 (iv)] In a system for supplying current impulses to a welding or other load circuit 1 from a condenser 3, the charging of the condenser is effected through a grid-controlled electric discharge device 4 and a potential bias on the grid is controlled by the rate of charging of the condenser and by the voltage to which it is charged, so that it charges at a constant rate until a given voltage is reached, whereupon it remains charged to such voltage, being tricklecharged if necessary, until discharged into the load circuit through a discharge device 2(i controlled by a relay 39. During discharge, a grid bias is applied to prevent charging ; reversal of polarity, due to the inductance of a transformer 27 into which the condenser discharges, is prevented by a discharge device 53 shunting the transformer which is rendered operable by a timing relay 60 as in Specification 556,118. The grids of rectifiers 4 are supplied through phase-shifter 21 with lagging A.C. voltage. Superposed on this voltage is a variable bias which controls the rectifier current. To prevent conductivity during discharge of the condenser 3, a relay 82 is de-energized by a switch 102 when a switch 101 initiates a welding impulse and this de-energization is maintained by a relay 105, energized by the discharge current for example ; the contacts of the relay 82 apply a negative bias to the grids of valves 4. A resistance 79 is the seat of a variable bias controlling the conductivity of the valves 4 during charging, current through this resistance being varied according to the potential difference between grid and cathode of a valve 77. The grid 86 is connected to a point 94 of fixed potential and the cathode 13 connected through a double rectifier 95 to two potential points, one at the negative end of a resistance 75 through which passes current proportional to the rate of charging of the condenser and the other to an adjustable point 92 on a potential divider in shunt to the condenser 3. During charging, the potential on the former point is effective, but when a given condenser voltage is reached, the potential on the second point becomes effective. Alternative means of controlling the current in resistance 75 are (a) a supply-current transformer 70 or .(b) a condenser 109 which may be connected in series with resistance 75 across the condenser 3. In a third arrangement a condenser is connected between the charging conductor 19 and a point 112 on the grid circuit of the valves 4. Relay 65 is a time-delay means to permit filamentary electrodes to heat up before the system can be operated.
Patent GB-1415799-A (GB)
Title: Magnetic disc for a magnetic recording system and  a method of making such discs
IPC: G11B5/852
Filed: 1973-02-01
Abstract: 1415799 Flexible magnetic recording discs ARVIN INDUSTRIES INC 1 Feb 1973 [7 Feb 1972] 5183/73 Heading B2E A flexible magnetic recording disc comprises a flexible base having a coating which includes randomly oriented acicular magnetically anisotropic particles. A method of making the discs comprises coating a web 11 of a flexible non-magnetic base material with randomly oriented particles 15 in a liquid binder 17, hardening the binder in a drier 21 and die cutting the coated web 23 with diecutting apparatus 25. The particles are preferably acicular ferro-magnetic material.
Patent GB-683745-A (GB)
Title: Improvements in or relating to a cooling apparatus
IPC: A01J9/04
Filed: 1951-03-05
Abstract: 683,745. Refrigerating. MORRISON, J. 1. March 5, 1951, No. 5292/51. Class 29 Cooling apparatus for liquids in which a congealable liquid in a tank 48 with baffles 58, 60 flows in a circuitous path around refrigerating pipes 50 has fins or flow barriers 62 extending across the flow stream to restrict the flow passage whereby ice forms between the fins as shown in Fig. 8 and does not change the cross section of the flow stream. Liquid for cooling milk cans in a tank 65 is pumped through a pipe 66 to the refrigerated tank 48 where it circulates around the baffles 58, 60 cooled by the refrigerator pipes 50. To each side of the baffles are welded the parallel inclined fins 62 directed against the direction of flow of the liquid thereby causing turbulence. During periods of low load ice forms between the fins and on increase of demand for cold the ice melts exposing a greater surface to the liquid, as shown in Fig. 9. (For Figure see next column)
Patent GB-190668-A (GB)
Title: Improvements in collapsible hand-trucks, go-carts and the like
IPC: B62B1/20
Filed: 1922-02-23
Abstract: 190,668. Wagner, E. Feb. 23, 1922. Folding and collapsable vehicles.- A collapsable hand-truck, borrow, or go-cart has two wheels r rotatable and slidable on frame members b so that the wheels can be shifted fore and aft before folding so that they may lie entirely clear of each other and between the members b. A handle-bar c is provided to the members 6, and the wheels are mounted on carriers g having sleeves d slotted to engage pins s. An axle e is mounted on a folding bracket f, and is connected to stub axles e<1>, Fig. 6, by pins or sleeves. A hinged leg k is supported by struts i.
Patent GB-967832-A (GB)
Title: Alpha-olefin polymerisation catalyst
IPC: C08F10/00
Filed: 1962-02-12
Abstract: Olefins are polymerized in the presence of a catalyst system consisting of a component made by reacting a compound of the formula MX1 with a compound of the formula (AIRX2)2 in approximately equimolecular proportions where M is an alkali metal, R is an alkyl radical containing 1 to 5 carbon atoms, and X and X1 are the same or different halogen atoms, and a component selected from transition, metal halides.  The catalyst system is preferably made by mixing the components and heating to a temperature between 70 DEG  and 150 DEG C. until homogenisation is attained.  The polymerization is preferably effected in an inert liquid diluent and at a temperature between +20 and +110 DEG C. Compounds of the formula MX1 may be potassium bromide, sodium chloride, or sodium fluoride.  The organo aluminium compound may be monoethyl aluminium dichloride, or monoethyl aluminium dibromide.  The exemplified transition metal halide is violet TiCl3.  The olefin polymerized in the examples is propylene, and the polypropylene after recovery by conventional techniques is fractionated by solvent extraction.
Patent GB-790529-A (GB)
Title: Improved household blanket
Inventor: LEMIEUX GEORGE WILFRED
IPC: A47G9/02
Filed: 1957-02-21
Abstract: 790,529. Blankets. BEACON MANUFACTURING CO. Feb. 21, 1956, No. 5404/56. Drawings to Specification. Class 142(4). A woven blanket in which the filling is coreless and has a count within the range from 1.75 to 3.50 is woven so that any three adjacent warp ends run 2-down and 1-up with respect to any top face filling yarn and 1-down and 2-up with respect to any bottom face filling yarn and each warp end runs alternately under a group of two top face and one bottom face filling yarns and then over a group of one top face- and two bottom face filling yarns. The warp ends are arranged with a density of 27 to 30 ends per inch. Both faces are napped. The warp yarns are 20s cotton, and the filling yarns may be 90 per cent rayon and 10 per cent nylon, or 50 per cent rayon, 25 per cent wool and 25 per cent cotton.
Patent GB-511454-A (GB)
Title: A new or improved method of and means for inserting cards or leaflets into packages of goods
IPC: B65B61/20
Filed: 1938-02-21
Abstract: 511,454. Packeting-machines; feeding sheets. NAYLOR, W. H., and DAY & SONS, Ltd., J. Feb. 21, 1938, No. 5407. [Class 94 (i)] [Also in Group XVI] Cards or leaflets are placed on separately cut travelling blanks for cartons or wrappers before making up into boxes or pockets to be filled. As shown, a blank D is fed between guides A by pushers C on a chain B beneath a magazine E from which the cards are fed into a hinged tray Q. The lowermost leaflet is withdrawn from the magazine by an oscillating suction nozzle K and is grasped by jaws m<1>, n<2>. The jaw m<1> is fixed to a pendent arm M oscillated by a link h<3> and the jaw n<2> is pivoted to the arm at m<2> and is opened and closed by a cam-operated lever P. The card drops on to the tray Q, which is tilted at the proper time to deposit it on the blank D. A number of magazines may be arranged to deliver a series of cards, or the mechanism may be arranged to feed a. card to every tenth &c. blank. Specification 15,552/06, [Class 94], and U.S.A. Specification 2,076,378 are referred to.
Patent GB-1520703-A (GB)
Title: Remotely controlled externally mounted motor vehicle mirrors
IPC: B60R1/02
Filed: 1977-02-09
Abstract: 1520703 Rear-view mirrors J R HOLLINS 9 Feb 1977 05412/77 Heading B7J In a door-mounted control, for remotely adjusting the position of an externally-mounted vehicle mirror, screws 52, 58 limit the vertical and horizontal movement of a control lever 20 whereby the mirror can be returned to a desired orientation after manipulation to observe a different field of view.