baber/WOPTO huggingface dataset:
Patent GB-1411857-A (GB)
Title: Process of preparing photographic material
IPC: C08J7/02
Filed: 1973-02-13
Abstract: 1411857 Coating treated films FUJI PHOTO FILM CO 13 Feb 1973 [14 Feb 1972] 7102/73 Heading B2E [Also in Division G2] A photographic material is prepared by (a) roughening the surface of a film which comprises polystyrene, poly(α-methylstyrene) or a styrene copolymer, (b) flame-treating the roughened surface, and (c) coating the resultant white opaque surface with a photographic suspension containing gelatin (see Division G2- G3). In example 2, a 0.25 mm. film of impactresistant polystyrene film containing 13% TiO 2  is roughened on one side by treating with methyl ethyl ketone and dried; the roughened surface is then treated with a propane/oxygen flame and coated with an aqueuos solution of gelatin and formalin before being coated with a colour photographic silver halide emulsion. Reference has been directed by the comptroller to Specification 1237475.
Patent GB-878083-A (GB)
Title: Improvements relating to thermocouples
Inventor: DAVIES DEWI ALWYN
IPC: H01L35/20
Filed: 1958-03-05
Abstract: A thermocouple for service at temperatures up to 2800 DEG C. has as one component an alloy of tungsten with 0.05-38% by weight of rhenium, and as the other, tungsten.  The latter may be replaced by tantalum or an alloy of tantalum and tungsten, when a characteristic curve is obtained having a steeper slope above 2100 DEG C., although the maximum operating temperature and the E.M.F. generated are both reduced.  All the couples of the invention have a positive slope to the characteristic curve at all temperatures, and are unaffected by hydrogen.  Reference has been directed by the Comptroller to Specification 816,135.
Patent GB-255004-A (GB)
Title: Improvements in or relating to fasteners for wearing apparel
IPC: A41F15/02
Filed: 1926-03-15
Abstract: 255,004. Degueldre. F., and Demaret, (nÚe Degueldre), L. March 15, 1926. Fastening wearing- apparel. - A safety pin fastening particularly for ribbons, shoulder-straps, &c., comprises a plate a and a blunt-ended U-shaped wire e. A lug d at one end of the plate is bent over to form a hinge for the wire, and lugs b, c at the other end are bent over to form a retaining member for the limbs of the wire which, in closed position, lie in close contact with the plate so that a ribbon &c. may be gripped between the wire and the plate. In a modification, the retaining member is a separate case secured to the plate and the hinge-piece d is pivoted to the plate. In another modification, the hinge piece is replaced by a case into which the bent part of the wire fits loosely.
Patent GB-176803-A (GB)
Title: Improvements in antenna systems for wireless signalling
IPC: H01Q9/40
Filed: 1922-03-10
Abstract: 176,803. Ges. fiir Drahtlose Telegraphie. March 12, 1921, [Convention date]. Aerials.-With the object of avoiding earth losses in a transmitting-aerial, the earth connection or screen B is of larger dimensions than the aerial A, and is divided into corresponding sectors. Each sector of the aerial network is connected by a radial wire V to the upper end a of the vertical lead, and each sector of the earth connection or screen is connected by a radial wire W to the lower end b of the vertical lead. The outer ends of the wires V, W are connected to the sectors at points lying on circles S, T at which the electrostatic lines arc most concentrated.
Patent GB-971719-A (GB)
Title: Alkaline rearrangement of hydrocarbon substituted silanes
IPC: C07F7/18
Filed: 1962-02-23
Abstract: Silanes of the general formula RnSi(OR1)4- n, wherein R is alkyl, phenyl or benzyl, R1 is alkyl, and n is 2 or 3, at least one R per molecule of the silane being alkyl or benzyl, are produced by heating above 150 DEG C. a mixture of (A) at least one silane of the general formula RaSi(OR1)4- a where a is 1-4, the average a being less than 4, and at least one silane having alkyl or benzyl as the only R radicals, and (B) 0.1 to 20% by weight of (A) of an alkali metal base.  Specified R groups are methyl, ethyl, propyl, isopropyl, benzyl and phenyl. Specified R1 groups are methyl and ethyl. Specified alkali metal bases are sodium hydroxide, potassium hydroxide, sodium oxide, potassium oxide, lithium methoxide, potassium propoxide, sodium ethoxide, potassium methoxide, sodium methoxide, sodium amide, potassium amide, lithium amide, sodium trimethyl silonate, dipotanio dimethyl silonate, NaO[Si(CH3)2O]4Na, and KO[Si(CH3)2O]2K. Examples describe the preparation of: (1) Ph.Me2SiOMe from a mixture of Ph2Si(OMe)2, PhSi(OMe)3 and Me2Si(OMe)2 using NaOMe; (2) MePhSi(OMe)2 from a mixture of Ph2Si(OMe)2 and MeSi(OMe)3 using NaOMe; (3) PhMeSi(OMe)2 from a mixture of PhSi(OMe)3 and MeSi(OMe)3 using NaOMe; (4) (C6H4CH2)2Si(OEt)2 from (C6H4CH2)Si(OEt)3 using KOEt; (5) Pr2Si(OMe)2 from PrSi(OMe)3 using LiNH2 or Me3SiONa and (6) MePhSi-(OMe)2 and MePh2SiOMe from a mixture of Ph4Si and MeSi(OMe)3 using NaOMe.
Patent GB-455042-A (GB)
Title: A process for dephosphorising and desulphurising steel
IPC: C21C7/064
Filed: 1935-03-07
Abstract: In a process for the desulphurization or the simultaneous dephosphorization and desulphurization of steel, the molten steel is intermixed so as to obtain a mutual interpenetration with a very oxidizing fluid slag containing one or more free bases in large excess, the slag being so highly basic and oxidizing and being employed in such quantity that it maintains up to the end of the treatment its strongly basic and oxidizing character.  The bases used are alkali or alkaline bases such as soda, potash, lime or baryta. The slags may be melted before use or may be added in the solid state to the steel, their fusion being effected wholly or partly by the heat of the steel itself.  The intermixing of the steel and the slag may be produced by pouring the steel with great rapidity on the slag or in the basic converter in which the steel is first blown to reduce the phosphorus content, the slag so produced removed and then blown for a very short period with the strongly basic slag.  Other methods of producing the intermixing of the steel and slag as described in U.S.A. Specification 2,015,692 may be used.  The vessel in which the intermixing takes place is lined with neutral or basic materials.  In an example, a steel containing 0,08 per cent of phosphorus and 0,05 of sulphur was poured into a molten slag containing 20 per cent of iron oxide, 64 of lime, 1 of silica, and 15 of fluorspar, the weight of slag being about 8 per cent of the weight of the steel. British Specification 405,633 also is referred to.
Patent GB-552307-A (GB)
Title: Improvements in multi-lead pencils
IPC: B43K24/12
Filed: 1942-05-28
Abstract: 552,307. Pencil holders. MAUCHER, H. May 28, 1942, No. 7264. [Class 146 (iii)] In a multi-lead pencil, the lead carriers move lengthwise within guides which yieldingly engage the casing. The guides consist of plates 10, 11, Figs. 5, 5a, with interfitting slots 12, 14 forming a crossshaped structure, plate 10 having a flange 13 which engages a slot in the casing and plate 11 having a flange 15 and slot 16 so as to frictionally engage within the casing. The casing 5, Fig. 8, also carries an outer sleeve 25 and a refill magazine 23 which are secured together by a headed stud 28 retained in place by a locking sleeve 29. An eraser 31 and cap 32 may be added.
Patent GB-589419-A (GB)
Title: Improvements in sack cleaners
IPC: D06G1/00
Filed: 1945-03-22
Abstract: 589,419. Sack cleaners. GUDEL, S. March 22, 1945, No. 7276. [Class 138 (i)] A sack cleaner comprises a box 1, in which is a ladder-like, sackbeating frame 10, which reciprocates through the smaller of two bails 8, 9, which serve to hold sacks of different sizes. The frame is pivoted to one end of a pair of rods 11 secured to a beam 12 rotatably mounted in the box and having an arm 13 connected by a rod 14 to an operating handle 16. A stop device holds the frame in the plane of the bails while inserting a sack. The dust falls on to a sieve 5 which is reciprocated over a drawer 4, being moved in one direction by the engagement of a rod 17 on the beam 12 with projections 7 on the sieve, and in the other direction by a spring 6.
Patent GB-207104-A (GB)
Title: Improvements in or relating to trouser braces
IPC: A41F3/00
Filed: 1923-03-13
Abstract: 207,104. White, A. E., (Soc. du Caoutchouc Manufacture). March 13, 1923. Braces for personal wear.-Braces having the usual elastic shoulders straps B and back and front tabs D are provided with an additional central front tab 1 for supporting the trousers, pants, &c. The tab 1 is supported by a member 2 attached to elastic bands 3 which are connected by links 6 to tabs 7 stitched to the leather parts E of the front portions of the shoulder straps. Buckles 5 are provided for adjusting the length of the straps 3.
Patent GB-144821-A (GB)
Title: Improvements in or relating to clippers
IPC: B26B19/28
Filed: 1919-03-24
Abstract: 144,821. Moore, G. W. March 24, 1919. Hair-clippers.-The comb plate 6, Fig. 1, has an arm 12 formed integrally with it and extending upwardly and rearwardly to form a hollow handle in which is mounted the operating-shaft 19, Fig. 2. The cutter plate 7 is operated by means of a rocking-arm 8 connected by a link 9 to a lever 10 pivoted at 14 and slotted at 15 to engage a pin 16 on the worm-wheel 17 which is driven by a worm 18 from the operating shaft 19. The central portion 14 of the lever 10 is cylindrical in form and made to fit closely the opening receiving it. The shaft 19 carries a slotted socket 21 projecting into an opening 22 to receive the flexible driving-shaft which is held in position by a locking pin 23 engaging a groove therein.
Patent GB-1076897-A (GB)
Title: Process for preparing high molecular homo-polymerizates and co-polymerizates of alpha-methyl-styrene
IPC: C08F2/36
Filed: 1965-02-19
Abstract: Polymers of alpha-methylstyrene are made by effecting the polymerization of the methyl-styrene alone or admixed with other ethylenically unsaturated monomers in the presence of an organometallic compound of lithium in an amount of 3 to 20 millimols per mol of monomer, and a polyglycol of the formula <FORM:1076897/C3/1> where n is an integer from 5 to 200, in an amount of from 0.5 to 2.0% by weight of the monomer or monomers.  The polymerization temperature is from -60 DEG  to +60 DEG  C.  The polyglycol may be etherified with a monohydric aliphatic or polyhydric aliphatic alcohol or an amino alcohol, or esterified with an organic acid. The polyglycols may be used in admixture with hydroxyalkylated phenols.  The polymerization is generally effected in a hydrocarbon solvent. The other monomers may be styrene, vinylpyridine, 1 - isopropyl - 4 - isopropenylbenzene, methylmethacrylate, acrylonitrile, methylpentadiene, or butadiene. The Specification includes numerous examples of copolymerization.
Patent GB-1105039-A (GB)
Title: Continuous process and apparatus for kneading raw materials in the manufacture of dynamite
IPC: C06B21/00
Filed: 1965-09-08
Abstract: In a continuous process for the manufacture of dynamite, the raw materials are fed into a flexible tube 60 and kneaded and transported by the action of an external device.  The tube may be made of rubber, plastics material, <PICT:1105039/C1/1> cloth, or leather and the raw materials are fed be means of a reciprocating plunger.  A plurality of pressing plates 57 arranged in groups along the tube reciprocate successively to shear, masticate and push forward the mixture. The plates are operated from driving-shaft 46 by mechanism including cams 47, levers 49, and springs 56.  The reciprocating plates may be replaced by rollers.  The kneading step may form part of the dynamite manufacturing process described in Specifications 1,105,036, 1,105,037 and 1,105,038.
Patent GB-227316-A (GB)
Title: Improvements in or relating to rucksacks, military equipments and the like
IPC: A45F3/06
Filed: 1924-03-24
Abstract: 227,316. Mills Equipment Co., Ltd., and Lethern, A. A. March 24, 1924. Knapsacks.-A rucksack has slings 7, 8, connected, preferably detachably by means of slides 6, to the upper part of the back and adapted to be passed through triangular rings or loops 3, secured either directly to the bottom corners or to tags or straps attached thereto, so that the slings form a belt adapted to encircle the waist of the wearer, a slide or buckle 9 being provided on one of them. The rucksack may form part of a military equipment as shown, in which case the rings 3 are attached to a half-belt 2 secured to the lower edge of the back, the ends of the halfbelt carrying buckles 5 which may be used to adjust the lengths of the slings. Cartridge carriers 10 are shown mounted on the belt by means of loops 11 and provided with short braces 12 detachably connected to the slings by slides or buckles 13. The braces may extend to the waist belt. A water bottle 16, haversack 17, bayonet frog 18, and other articles of equipment may be carried as shown.
Patent GB-307462-A (GB)
Filed: 1929-03-07
Abstract: 307,462. British Celanese, Ltd., (Assignees of Moss, W. H.). March 8, 1928, [Convention date]. Single cocatings; multiple, superposed coatings; special fabric bases.-Transparent or translucent material used as a substitute for glass comprises openwork or reticulated material such as metallic wire netting enclosed in a coating of a synthetic resin and cellulose acetate or other organic derivative of cellulose. The synthetic resin may be applied as a first coating sufficient to protect the foundation material without completely filling the interstices, a second coating of cellulose derivative being then applied to fill the remainder of the interstices. The second coating may contain synthetic resin in addition to cellulose derivative, and the first coating may contain a proportion of cellulose derivative. Alternatively, a coating composition containing both ingredients may be used. The base material may be netting, gauze, or fabric; preferably iron or steel netting; or netting of copper or galvanized iron. Synthetic resins such as those described in Specifications 296,675, 299,067, 299,781, 307,289, 307,290, and 307,291, [all in Class 95, Paints &c.], may be used; such resins comprising phenol-aldehyde resins, ketonephenol-aldehyde resins, phenolfurfural resins, aromatic amine-furfural resins, and ketone-furfural resins. Mixtures of two or more resins may be used. The cellulose derivatives may include cellulose acetate, formate, propionate or butyrate, or ethers such as methyl, ethyl and benzyl cellulose. Suitable plastifiers may be added, and natural gums or resins such as manila, kauri, dammar, rosin, shellac or ester gum may be used. Medium or high boiling point solvents may be used in addition to volatile solvents. In one example, an iron or steel screen of 14 meshes per inch is dipped in one of the following solutions; A. 10 parts of diphenylolpropane formaldehyde resin in 100 parts of acetone; B. 8 parts of phenol-formaldehyde resin, 2 parts of diethyl phthalate, 100 parts of acetone and 5 parts of ethyl lactate. After dipping, the screen is allowed to drain, and then dipped in a second solution of which the following are examples; A. 10 parts of cellulose acetate in 100 parts of acetone; B. 5 parts of oallulose acetate, 50 parts of acetone, 25 parts of alcohol, 25 parts of banzene and 2 parts of ethyl lactate; C. 15 parts of cellulose acetate, 1 part of diethyl phthalate, 1 part of tricresyl phosphate, 1 part of triphenyl phosphate, 1 part of triacetin, and 100 parts of acetone. In another example, the screen is dipped in one of the following solutions; A. 10 parts of cellulose acetate, 2 parts of synthetic resin, and 100 parts of acetone; B. 10 parts of cellulose acetate, 5 parts of synthetic resin, 3 parts of diethyl phthalate, 100 parts of acetone and 2 parts of ethyl lactate. The meshes are entirely filled with this composition. Pigments, dyes or powdered metal may be added to the compositions.
Patent GB-828557-A (GB)
Title: Improvements in or relating to motion transmitters
Inventor: FOSTER ALAN
IPC: B41J2/27
Filed: 1957-03-06
Abstract: 828,557. Selective printing. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Feb. 11, 1958 f March 6, 19571. No. 7491/57. Class 100(4) [Also in Group XXXV] In a recording apparatus in which a reciprocating stylus 2 marks an impression receiving material, e.g. of the construction described in Specification 707,736, the stylus is actuated by, a continuously rotating Johnson-Rahbek pulley and conducting band 9, the band tension being relieved in operation by connecting its ends to a lever 17, 18 having arms of unequal length so that friction is reduced at that part F of the pulley where most friction would normally occur. The pulley may be coated with a. dielectric or semiconducting layer 13, e.g. barium titanate, which may include a small proportion of strontium titanate or chemically treated magnesium orthotitanate. The layer may be mounted on a silver sleeve 11 which may embrace the ends of the pulley. The surface of the pulley is lubricated and insulated by a brush 14 of polytetrafluoroethylene. On energization of the pulley and band from an impulse source 8, the lever is rocked in a clockwise direction, thus operating the stylus through an insulating pad 19, and because of the ineauality of the lever arms the tension is relieved at the top of the pulley and friction is reduced at F.
Patent GB-197128-A (GB)
Title: Improvements in or relating to joints for pipes and the like
IPC: F16L13/12
Filed: 1922-03-14
Abstract: 197,128. BillÚ, L. March 14, 1922. Spigot-and-socket and like overlap joints held by caulking.-A joint-making malleable metal packing ring for spigot-and-socket joints is formed from a blank having a base-portion 4 with three or more projecting strips 2, 1, 3. The blank, cut to the length required, has the strips 2, 1, 3 compressed together and is then bent to form a ring and its ends soldered. After being placed in position between the pipes 6,7, the central strip 1 is caulked, forcing the wing strips 2, 3 against the walls of the pipes. The outer wing strip may be shaped to conform to a similarly shaped part of the inner wall of the pipe 6 and the end of the socket may be beaded to retain the ring 5 in position during transport of the pipes. When applied to a sleeve joint, the jointing-ring is formed as shown in Figs. 3 or 4, a central part 22 being provided, if desired, for centring the ring 19. A steel ring may be positioned over both ends of the jointing ring after mounting the latter on the pipe ends, and the joint protected by a layer of jute impregnated with asphalt, cement, &c. As shown in Fig 6, the jointing-ring 23 may be coated with a layer of asphalt 35 and surrounded by a steel &c. ring 34, a layer of cement 36 being provided between the rings 34, 23, and the ring 34 protected by a layer 38 of jute impregnated. with asphalt, cement, &c. In a further modification, the jointing ring with its layer of asphalt is surrounded by one or more plain or perforated steel rings embedded in cement, the steel rings being reinforced, if desired, by helical windings of steel wire. As applied to sleeve joints, one end of the jointing-ring may be initially secured to one pipe end by caulking the central strip or strips, the other pipe end being secured in the other end of the jointing-ring when the pipes are in situ. Fig. 8 shows a joint applied to pipes already laid. The jointing-ring 23 is surrounded by a number of perforated steel rings 46 reinforced by one or more steel wire windings, centring of the parts being secured by V-shaped ties 48. A collar 49 is placed at each end and the whole surrounded by an iron sheet 50 having one or more holes 51 through which is run cement mortar 52. After the mortar 52 has set, the parts 49, 50 are removed and the central strips 26 of the jointing-ring 23 caulked. In all modifications, the space left after caulking the central strip or strips may be filled in by caulking therein a malleable metallic wire.
Patent GB-1153556-A (GB)
Title: Oil Burner
Inventor: YAMAGUCHI KEIZO
IPC: F23D5/00
Filed: 1968-02-15
Abstract: 1,153,556. Oil burners. ASIA SEKIYU K.K. 15 Feb., 1968, No. 7576/68. Heading F4T. An oil burner comprises a container 10 supplied with fuel oil through a pipe 1 and with primary combustion air under pressure through a pipe 2 terminating in a nozzle 3 within a Venturi 5, the bar pressure within the Venturi causing cyanified fuel oil from container 10 to enter the Venturi and there extending over the Venturi a plate 8, which deflects a portion of the exhaust gases into container 10 to cyanify the fuel oil. The container 10 is supported in an outer housing 13 by an annular plate having apertures 7 through which secondary combustion air is supplied to space 16 in order to complete combustion of the exhaust gases not downwardly deflected by plate 8. The plate 8 is supported by metal blades 9. Primary combustion air is supplied by a blower 11.
Patent GB-290595-A (GB)
IPC: H01H9/04
Filed: 1928-03-12
Abstract: 290,595. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). May 16, 1927, [Convention date]. Switch mechanisms interlocking with lids in which the switch is contained within a gas- and water-tight casing have a removable mechanical coupling member between the external operating spindle and the switch shaft, this member being attached to the cover and arranged so that it may be removed only when the switch is in the open position. As shown in Fig. 1, the lid 21 of the casing 12 carries on its underside a depending arm 22 provided with a bearing for a coupling member 14 between the operating shaft 13 and the switch shaft 16. The member 14 is formed at each end with flattened projections which slide into slots in the adjacent ends of the shafts 18, 16 so that when the handle 11 is turned through 90‹ to bring the bridging members 15 into contact position the cover 21 is held in position by the coupling member 14. In an alternative construction the ends of the shafts 13, 16 may terminate in flattened projections adapted to cooperate with slots in the ends of the coupling member 14. The casing is made gas- and watertight by clamping suitable packing members between the cover and the upper edge of the casing walls.
Patent GB-456489-A (GB)
Title: Improved manufacture of articles from sheet material such as paperboard by drawing, pressing, stamping and the like
IPC: B31B50/59
Filed: 1936-03-13
Abstract: 456,489. CrÛped paper or board. ZELLSTOFFFABRIK WALDHOF, Waldhof, Mannheim, and HAAS, R., 2, Auf dem Grat, Dahlem, Berlin, both in Germany. March 13, 1936, No. 7661. Convention date, March 23, 1935. [Class 96] Paper, paper-board, &c. is crÛped in two or more directions and drawn, pressed, or stamped to form hollow articles, e.g. leaving the basal surface of the starting material unstretched. Layers may be glued, or stitched, &c. together with the crÛping parallel, oblique, &c., and pieces of paper-board, wood, &c. stuck on.
Patent GB-609365-A (GB)
Title: Improvements in base plates or chairs for rails
IPC: E01B9/36
Filed: 1946-03-12
Abstract: 609,365. Casting composite articles. PEASE & PARTNERS, Ltd., and PENNINGTON, D. G. March 12, 1946, No. 7694. [Class 83 (i)] [Also in Group XXX] Cast-iron railway chairs or base-plates A have the spike apertures D formec by mild steel ferrules or chaplets E. The ferrule: are formed from a steel strip bent to rectangular tubular form and placed in the mould box as cores. The outer face of the ferrule may be scored or ribbed to key into the chair.