baber/WOPTO huggingface dataset:
Patent GB-1453993-A (GB)
Title: Coke ovens
IPC: C10B21/10
Filed: 1974-03-22
Abstract: 1453993 Controlling fuel gas supply to coke ovens SIMON-CARVES Ltd 22 March 1974 [6 April 1973] 12885/74 Heading F4B In a regeneratively heated underjet coke oven battery wherein each burner 30, Fig. 1, is connected by a riser 40, 41 to a distributer pipe 35, 36, several adjacent risers are connected to a common nozzle 50 by pipes 39, Figs. 3, 4, branch pipes 42 and cross pipes 52 in which are inserted screwed regulating plugs 53 and 60, Fig. 4, adjustable from the basement. In a modification (Fig. 2) with hairpin flues, high and low burners in each heating flue limb are connected to the distributer pipe through a common nozzle, in which case only the branch pipes feeding the upper burners may have regulators. The nozzles 50 may be replaced or cleaned by removing caps 49 in pipe sections 48 below them. A modified regulator (Fig. 7) comprises a screwed spindle (63) with a conical tip entering a ring (62) in the cross pipe 52.
Patent GB-922457-A (GB)
Title: Graft copolymers and process for preparing them
IPC: C08F283/06
Filed: 1959-04-15
Abstract: Graft copolymers are made by dissolving a polyalkylene oxide or glycol in at least one monomer, which is then polymerized by the action of a free-radical catalyst and/or actinic light.  Monomers specified are vinyl acetate, propionate, butyrate and benzoate, methyl, ethyl, propyl and isopropyl acrylates and methacrylates, and mixtures of such monomers with one another or with other polymerizable compounds, e.g. acrylic, methacrylic and crotonic acids, dimethyl maleate and dibutyl fumarate and itaconate. Polyalkylene oxides and glycols specified are polyethylene and polypropylene glycols, copolymers of ethylene oxide with propylene oxide, 1:2-epoxybutane, isobutylene oxide and/or styrene oxide, polyalkylene glycols esterified or etherified at one or both ends with acetic, propionic or butyric acid or methanol or butanol, the condensation product of ethylene oxide with nonyl phenol and the condensation product of propylene oxide with tributyl phenol, polyalkylene glycols substituted at one or both ends by mono or polyamines, e.g. ethylene diamine, polyalkylene glycols substituted at one or both ends of the chain by carboxylic or sulphonic amide groups, and the reaction product of polyethylene glycol and p-phenylene diisocyanate.  Polymerization catalysts specified are acetyl, benzoyl and lauroyl peroxides, a benzoyl peroxide/benzoin mixture and azodiisobutyronitrile.  The polymerization may be carried out in bulk or in solution in a solvent such as methanol or methyl acetate.  In an example (7) a graft copolymer of vinyl acetate crotonic acid and polyethylene oxide is dissolved in aqueous ammonia. Specification 874,130 is referred to.
Patent GB-935052-A (GB)
Title: Fibers
IPC: D06P1/673
Filed: 1962-04-04
Abstract: A heat-stable polypropylene fibre of good tensile strength and acid dyeable is prepared by irradiating and chlorinating preformed polypropylene fibres in the solid state, sufficient chlorine gas being used to provide from 1 to 20% of chlorine based on the weight of the fibre, and then reacting the so-treated fibres with a polyamine in amounts sufficient to react with at least 50% of the chloro groups in the fibre molecule.  Preferably the polypropylene fibres are saturated with chlorine, then irradiated in the presence of chlorine and after the termination of the irradiation the fibres are still subjected to chlorine until they have a chlorine content of 5 to 15%.  Alternatively the fibres may first be irradiated and then chlorinated or the two processes carried out simultaneously.  Lists of alkylene, cycloaliphatic and aralkyl polyamines are given and the polyamines used in the examples are ethylene diamine; 1,4diaminocyclohexane; 1,4-(diamino-methyl) benzene; triethylene tetramine and diethylene triamine.  The polyamine treatment can be carried out from 15 DEG  to 150 DEG C.  For the irradiation step, particulate irradiation, e.g. alpha- and beta-particles and high energy electrons; electromagnetic irradiation, e.g. gamma- and X-rays, visible and ultra-violet light; or an electric discharge may be used.  The untreated polypropylene fibres generally have molecular weights from 100,000 to 500,000.  The treated fibres may be dyed with acidic dyestuffs.ALSO:Polypropylene fibres prepared by first irradiating and chlorinating preformed polypropylene fibres in the solid state, sufficient chlorine gas being used to provide from 1 to 20% of chlorine based on the weight of the fibre, and then reacting the so-treated fibres with a polyamine in amount sufficient to react with at least 50% of the chloro groups in the fibre molecule (see Group IV(a)), are dyed with acid dyestuffs.  Dyestuffs mentioned are Calcocid Fast Blue, Calcocid Alizarin Green, Calcocid Fast Light Orange, Calcocid Alizarin Blue, Calcocid Phloxine, Calcocid Fast Violet and Calcocid Yellow CW concentrated.  In an example polypropylene fibres are treated with chlorine and X-rays and then immersed in ethylene diamine at 95 DEG C.  The fibres are then immersed in boiling water, then rinsed in cold water and then dyed by immersion in a boiling 0,08% solution of Calcocid Blue SAPG containing 0,2% sodium sulphate and 0,08% sulphuric acid.
Patent GB-150046-A (GB)
Title: Improvements in or relating to electric igniters for lighting burners, cigars, pipesand the like
IPC: F23Q2/28
Filed: 1919-05-23
Abstract: 150,046. Leflon, C. A., and Humbert, E. May 23, 1919. Lighting burners, pipes, cigars, and the like by electric devices.-An electric igniter consists of carbons 4, 5 secured by bridge-pieces 6, 7 to the front of a box 1 and connected through an asbestos-covered ferro-nickel resistance 10, a fuse 14, and wires 17, 18 arranged inside the box to terminals 2, 3. The terminals 2, 3 are connected to the house-lighting circuit or a battery of cells or accumulators. A wick torch 20, normally carried in a petrol reservoir 19 fixed to the side of the box, is ignited by the sparks produced on drawing it between the carbons 4, 5 and can be used for lighting burners, cigars, pipes, &c. A mica, asbestos, or other fireproof plate 21 is interposed between the carbons and the box. The box may be fixed to a wall or post or be provided with feet to render it portable.
Patent GB-611393-A (GB)
Title: Improvements in electrical connectors for coaxial transmission lines
IPC: H01R13/646
Filed: 1946-04-30
Abstract: 611,393. Microwave couplings. HAZELTINE CORPORATION. April 30, 1946, No. 13065. Convention date, May 19, 1945. [Class 40 (viii)] [Also in Group XXXVI] To avoid reflection of signal energy at connectors in coaxial transmission lines, a connector for a coaxial cable 12 comprises as shown a rigid conductor 10 connected to the cable inner conductor 11 and a stepped shell 14 secured to the outer cable conductor 13, the assembly providing (a) a characteristic impedance for a length l of the conductor 11 and step 15 of the shell 14 greater than that of the cable, and (b) a characteristic impedance for lengths l1 and l2 of the conductor 10 and the steps 15, 16 of the shell 14 less than that of the cable so as to maintain the ratio between the connector capacitance and inductance equal to the ratio between the capacitance and inductance of the cable. The connector length is determined by the length l of the shell portion surrounding the inner conductor 11, this length being dependent on the break-down voltage of the connector. The co-operating connector is provided with an inner plug and a shellreceiving portion also designed to match the impedance of the transmission line.
Patent GB-132717-A (GB)
IPC: E05C3/04
Abstract: 132,717. George, W. T. Feb. 24, 1919. Sash fasteners, pivoted-arm type.-The pivoted arm 3 of a sash-fastener carries a spring bolt 6 in its knob which is adapted to ride up a curved incline 9 on the lower sash and snap into an aperture 10 therein. The end of the arm is forkshaped so that it embraces the rib 9 when the arm is drawn over the lower sash and draws the sashes together. Specifications 554/75 and 8993/03 are referred to.
Patent GB-102251-A (GB)
Title: Improvements in Bed Tables.
Inventor: CAZENAVE AUGUSTINE PAUL RENE
IPC: A47B79/00
Filed: 1916-09-19
Abstract: 102,251. Cazenave, A. P. R. Nov. 15, 1915, [Convention date]. Bed-tables.-A bed table is provided with a hinged extensior flap to extend over the bed, extensible feet to allow the height of the exten. sion flap to be ad justed, and a remov. able book-rest consist. ing of two metal plates hinged to. gether. The hinged extension flap f is supported in the hori. zontal position shown by a frame g which slides beneath the top shelf c of the table and consists of a metal plate with grooves on three sides to hold a piece of linoleum. The feet m are retained in adjusted position on the uprights a by bolts engaging holes n. The book-rest is retained on the flap f by hooks k, with its hinged members i, i<1> in position for use, as shown in Fig. 7, and, when out of use, is suspended by hooks from one of the frame members, as shown in Fig. 9. The frame of the table supports three shelves c, c', c',. and its uprights a are connected by tie-bars b and members d, which form a rim or fence round the top shelf c.
Patent GB-133533-A (GB)
IPC: B43K5/00
Abstract: 133,533. Moll, A. D. Dec. 2, 1918. Reservoir pens.-A pen containing solid ink for making an ink suppiy by dipping into water comprises a holder a adapted at one end to receive a nib and provided with means for holding a stick c of ink either above or below the nib, and propelling the stick when required as it wears away. The stick c is contained in a tube! b secured between disks c in a hollow part of the holder and projecting through an end piece i. The propelling-device may be a screw g rotated by means of an end piece h and provided with a runner f projecting through a slot in the tube b; or a runner operated by a knob or band through a slot in the holder a; or spiral or other propelling means as used in lead pencils. The end piece i of the holder is slotted to receive the nib either above or below the tube b, and the latter is cut away at the end d either above or below according to the position of the nib. The nib may be retained in position and prevented from tilting by bentover ends of a spring strip attached to the tube b.
Patent GB-130964-A (GB)
Title: Improvements in Appliances for Playing Games.
IPC: A63F3/00
Filed: 1919-05-27
Abstract: 130,964. McLoughlin Bros., (Assignees of Le Massena, A.). Aug. 9, 1918, [Convention date]. Board games; scoring and marking apparatus.-In a board game simulating golf, the players spin indicators A', &c. divided into sectors as shown for example in Fig. 2, directions on the sectors indicating which of the succeeding indicators A<2>, A<3>, A<4>, &c. is next to be used by the player. The players thus progress from indicator to indicator until the hole is completed, their progress over the board being marked by inserting coloured pegs into holes 29. The strokes taken, that is the number of spins of the indicators, are scored bv inserting pegs into holes 34. The lead in holes of the leading player is similarly scored by inserting pegs into holes 36. The edge of the board is marked with a scale of yards, and the board is divided into sections hinged together along the lines 6, 7, 8.
Patent GB-791367-A (GB)
Title: The manufacture of cellulose esters of aliphatic acids
IPC: C08B1/02
Filed: 1956-05-01
Abstract: In the manufacture of aliphatic esters of cellulose by treating cellulose with an aliphatic acid anhydride in the presence of at least sufficient of an aliphatic acid containing 2-4 carbon atoms to dissolve the cellulose ester as it is formed and of not more than 1 per cent by weight (on the dry cellulose) of sulphuric acid as catalyst, the sulphuric acid is dispersed uniformly throughout the cellulose in the course of an activating pretreatment with an aliphatic acid containing 1-4 carbon atoms, and esterification is effected at a temperature which reaches at least 50 DEG  C. and may be as high as the boiling point of the acid. In the case of cellulose acetate pretreatment may be effected with acetic and sulphuric acids or with acetic acid, acetic anhydride and sulphuric acid.  Prior to activation the cellulose may be treated with water or dilute sulphuric acid.  The primary triesters produced as described above may be subsequently hydrolysed to the secondary esters.  The process is also applicable to the manufacture of cellulose propionate, butyrate, acetate propionate and acetate-butyrate.
Patent GB-1282546-A (GB)
Title: Snap-in mounting for an electrical switch
Inventor: OSIKA THOMAS FRED
IPC: H02B1/048
Filed: 1970-03-19
Abstract: 1282546 Switch mountings McGILL MFG CO Inc 19 March 1970 [1 April 1969] 13381/70 Heading H1N A device for mounting an encased switch in an aperture in a panel 14 comprises a resilient cover 10 with resilient leg portions 25, 26 to grip the switch casing, over which it is slipped, and resilient arm portions 40, 42 for retaining the cover in the aperture. The arms 40, 42 have serrated ends allowing mounting to panels of various thicknesses. The cover may also have means for supporting a neon lamp and its series resistor (Figs. 1-3, not shown) alongside the actuator 20 of the switch.
Patent GB-865810-A (GB)
Title: Improvements in or relating to primary cells
Inventor: UBBELOHDE ALFRED RENE JOHN PAU
IPC: H01M6/36
Filed: 1955-05-09
Abstract: 865,810. Primary cells. MINISTER OF SUPPLY. May 9, 1956 [May 9, 1955], No. 13414/55. Class 53. The electrolyte in a primary thermal cell is a melted alkali metal thiocyanate, preferably potassium thiocyanate with a carbon anode and a magnesium cathode. Alternative electrode metals are zinc and silver, and alternative electrolytes lithium and sodium thiocyanates. In one form of cell a glass fabric impregnated with electrolyte is sandwiched between flat plate electrodes. A pile of cells with their heating elements may be sealed in a container. The heater may be a mixture of powdered metal and oxidizing agent ignited by a percussion primer fired by a percussion cap. The heating mixture may be incorporated in glass or asbestos fibre discs interposed between the cells of a battery.
Patent GB-514592-A (GB)
Title: Improvements in and relating to the manufacture of cyclic ketones
IPC: C07C59/90
Filed: 1938-05-05
Abstract: 514,592. Cyclopentenone acetic acids. ROBINSON, R. May 5, 1938, No. 13440/39. Divided out of 514,516.. [Class 2 (iii)] Substituted cyclopentenone acetic acids are prepared by the elimination of water from acids of the general formula R-CO-CH2-CH2-COCH2-CH2-COOH where R is a naphthyl group or a substituted naphthyl group, by the action of a condensing agent. Condensing agents mentioned are the caustic alkalies, but other reagents supplying hydroxyl ions may be used, provided the positive ion introduced does not precipitate the diketo acid in the form of an insoluble salt. Substituents which may be present on the naphthyl group which are mentioned include hydroxy, alkoxy, and halogen group. In examples (1) #-#-naphthyl-gamma-#- diketoheptoic acid is boiled with 2 per cent. aqueous potassium hydroxide for 45 minutes, and then acidified with hydrochloric acid to give3-#-naphthyl-#<2>-cyclopenten-1-one-2-acetic acid. (2) #-(6-methoxy-#-naphthyl)-gamma-#-diketoheptoic acid is treated as in example (1) to give 3-(6-methoxy-#-naphthyl)-#-cyclopenten- 1-one-2-acetic acid. (3) #-(5-chloro-6-methoxy- #-naphthyl)-gamma-#-diketoheptoic acid is treated as in example (1) to give the corresponding chloro-methoxy-naphthyl cyclopentenone acetic acid. The diketonic acids which form the starting materials for the process of the present invention may be prepared by the treatment with dilute aqueous hydrochloric acid of furfurylidene derivatives of the general formula : which may themselves be obtained by condensing ketones of the general formula R-CO-CH3 with furfuraldehyde. The preparation of #-#-naphthyl-gamma-#-diketoheptoic acid, and #- (6-methoxy-#-naphthyl)-gamma-#-diketoheptoic acid is described.
Patent GB-135366-A (GB)
IPC: E05F11/14
Abstract: 135,366. Lane, J. A. Jan. 15, 1919. Casement and hinged shutter opening and closing apparatus, which is operated from inside the room without interfering with the screen or window sash, and locks the window &c. at any point within its range of movement, comprises a collar or strap 6 slidable on a guide-rod 5 and carried by a belt-crank lever 16 pivoted at 8 and having a, drop-handle 13. A second lever 7 is superimposed on the lever 16 and is guided by slots 17, 18 and pins. It is operated by means of the drop handle to lock the apparatus at any point by means of a cam surface pressing a part 26 of the collar.
Patent GB-256727-A (GB)
Title: Improvements relating to the dry-quenching or dry cooling of coke
IPC: C10B39/02
Filed: 1925-05-25
Abstract: 256,727. Woodall-Duckham (1920), Ltd., and Reber, J. W. May 25, 1925. Cooling discharged materials. - In apparatus for cooling coke, of the kind in which a stream of gas is circulated through the coke chamber a and a steam - generator i, the temperature of the gas leaving the chamber is maintained substantially constant by disposing the gas outlet g about midway up the chamber, this arrangement ensuring that there is, above the body of coke through which the gas is circulating, a considerable reserve of hot coke which travels into the gas stream at a constant rate. The chamber a is provided at the upper end with a cover a<1>, raised and lowered by the approach and withdrawal of a telpher l carrying a skip for discharge into the coke hopper m, and at the lower end with a continuous discharge device c which may be constructed according to Specifications 15053/07 and 12070/08, [both in Class 55, Gas manufacture], and co-operates with hangers d such as are described in Specification 2981/07. The receiving chamber e is closed by a water-seal door f. The gas is circulated by a fan k and valves g<1>, h<2> are provided for the entry of air to burn any combustible matter and for the escape of a corresponding amount of the circulating gas, respectively. In Fig. 2, the chamber a is surrounded by a water-jacket v arranged in circuit with a heating-coil o in the feed-water tank p, a circulating pump n being provided. In the modification shown in Fig. 3 the jacket v is connected by pipes s, t to the water space of the boiler i, the space above the water in the jacket v serving as a steam collector. The pipe t may be dispensed with and the space above the water in the jacket and the boiler i connected to a steam drum u.
Patent GB-611680-A (GB)
Title: New or improved mitten
IPC: A41D19/01
Filed: 1946-05-06
Abstract: 611,680. Mittens. PICKERING & SON, Ltd., J., and PICKERING, J. May 6, 1946, No. 13643. [Class 141] A mitten, particularly for stokers, has the palm a, back b and inside of the thumb c, Fig. 2, formed of a single piece of material, preferably felt. The back of the thumb is formed from a separate U-shaped insertion having limbs e, f, Fig. 1. A canvas or like facing g is secured to the palm a and inside of the thumb, and the back of the thumb is provided with a leather or like reinforcement h. The edges of the thumb are bound with strong fabric, e.g. asbestos fabric.
Patent GB-600063-A (GB)
Title: Improvements in and relating to the separation and concentration of olefins
IPC: C07C7/167
Filed: 1944-07-17
Abstract: Mono- or di-olefins are separated by contacting a mixture of hydrocarbons containing them with a selective solvent forming an addition compound therewith, stripping undesirable ingredients from the resulting solution with the desired olefin as stripping agent and recovering the desired olefin from the solution. Ethylene may be separated from a petroleum fraction containing hydrogen and hydrocarbons up to C3, butadiene from butenes, and isoprene from amylenes.  The solvent may be a basic cuprous chloride containing the salts of hydrochlorides of hydroxy alkylamines, ammoniacal cuprous nitrate or acetate solution or hydrochloric acid solutions of cuprous chloride and ammonium chloride.  For ethylene, a temperature of 50 DEG  F. or less is preferably used for the absorption and desorption steps, although higher temperatures may be used for desorption.  A fraction containing hydrocarbons up to C3 is passed into the bottom of an absorber in counter-current to a cuprous salt solution fed in at the top.  Unabsorbed gas leaves at the top while the solution containing ethylene and some propylene and saturateds is withdrawn at the base and fed down a stripping tower to a stripper where ethylene is flashed off by reduction of pressure or addition of heat.  Part of this ethylene is passed into the base of the stripping tower where it strips the propylene and other undesired gases and is then pumped into the bottom of the absorber.  The cuprous solution is recycled to the top of the absorber.  The stripping tower is preferably operated at room temperature and a pressure such that the solution from the absorber does not flash, and the ethylene used for stripping does not dissolve appreciably. The use of a pressure lower than that in the absorber is sometimes advantageous.  The stripping and absorption zones may be combined in a single tower, the feed gas entering at the mid-point.  In a modification, a gas containing ethylene and propylene is passed up through the absorber and the solution fed to the centre of a stripping tower where it descends against a stream of ethylene, and olefine free of ethylene passes upwards against a stream of solvent in the upper part of the tower giving an unabsorbed gas concentrated in propylene.  The solution at the base of the tower passes to a stripper where ethylene is flashed off and part re-cycled while the solvent is recycled to the absorption and stripping towers.
Patent GB-688288-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C5/00
Filed: 1950-05-31
Abstract: 688,288. Spectacle frames. HARRIS, G. E. Aug. 29, 1951 [May 31, 1950], No. 13656/50. Class 97 (i). In a spectacle frame comprising two rims of plastic or other non-metallic material to extend around the whole of the peripheries of the two lenses respectively and having internal grooves to hold the lenses, a metal bar, rod, wire or strip carrying, or constituting at one end the attachment means for one of the side arms extends along at least part of the upper part of each rim and is secured thereto by being wholly or partly embedded within a tube of non-metallic material which is attached to the rim by adhesive. As shown, each bar 13 is surrounded by short plastic tubes 14, 15 secured to the respective frames 11, and is bent and thickened at 16 to form one member of a hinge 17 for the side arm 18. Alternatively the tube 14 may be omitted and the tube 15 extends over a greater length of the bar 13 and may completely cover the bar up to the portion 16. The bars may be located at the rear of the frame instead of the front as shown. The bar may be inserted in the plastic tube in a heated state or may be pressed into a plastic rod, and the plastic covering may be D-shaped to facilitate adhesion to the rims 11. Specification 644,175 is referred to.