baber/WOPTO huggingface dataset:
Patent GB-1508474-A (GB)
Title: Process for halogen production
IPC: C01B7/04
Filed: 1975-03-18
Abstract: 1508474 Cl 2 , Br 2  production PULLMAN Inc 18 March 1975 [3 May 1974] 11269/75 Heading CIA Cl 2  or Br 2  are produced from HCl or HBr in a reaction system containing a stoichiometric excess of active nitrogen (oxidation state >3) over the hydrogen halide in a process comprising (a) passing H 2 SO 4  downwards from the top of the reaction system, (b) introducing the hydrogen halide (either present as such or as nitrosylhalide) below a reaction zone within said reaction system, (c) reacting the "hydrogen halide" with the active nitrogen in the reaction zone to produce free Cl 2  or Br 2  (which leaves the reaction system countercurrently to the descending H 2 SO 4 ) and nitrosylsulphuric acid (which enters the descending H 2 SO 4 ), (d) stripping the nitrosylsulphuric acid from the H 2 SO 4  using steam, NO+NO 2  being regenerated, (e) oxidizing the NO from step (d) to NO 2  and returning the NO 2  so produced to the reaction zone to maintain the stoichiometric excess of active nitrogen over hydrogen halide in Figure 2, which shows the simplest embodiment of the invention, step (b) occurs via line 12, step (c) occurs in reaction zone 13, step (d) occurs in stripping zone 16 using steam introduced via line 17 and step (e) occurs within the oxidizing zone 19 using O 2  supplied via line 18.
Patent GB-560821-A (GB)
Title: Improvements in or relating to electric motor control systems for electric winches and the like
IPC: B66C13/24
Filed: 1942-08-12
Abstract: 560,821. Controlling D.C. motors. JARVIS, C. M. Aug. 12, 1942, No. 11275. [Class 38 (iii)] A hoisting or other motor has its series field variably shunted By the operation of relays in accordance with load and desired speed. Of the diverter resistance's R8 .. R10 R9 is increased by a relay A as the motor current increases and R8 is reduced by a relay B to increase the motor speed. The cir cuit of the latter may include a barretter or a resistance with neg ligible or negative temperature-resistance coefficient ; its effectiveness is varied by resistances R4 .. R6 in accordance with the setting of a manual or automatic speed controller which also controls resistances R1 .. R3 in the motor circuit. The relays may be retarded, as by dashpots. The resistances R8, R9, R10 and the relays may be combined in a single assembly. The controller may be of the contactor type.
Patent GB-574083-A (GB)
Title: Improvements in anti-skid and tyre-supporting bands for double tyre wheels for vehicles
IPC: B60C27/22
Filed: 1944-06-13
Abstract: 574,083. Wheel tyres. SANDBERG, I. T. June 13, 1944, No. 11323. Convention date, May 31, 1943. [Class 144 (ii)] In a tread, for use on twin tyres, comprising a series of hinged plates 6, at least one of the plates is fitted with a rigid guide-member which extends between the tyres and is connected to the wheel hub by a chain 18. In the construction shown, the guide-member consists of curved arms 13 connected to a plate 12 which is bolted to the tread-plate 6 and slotted to permit lateral adjustment. The chain 18 is connected to the arms 13 through a link 17 which passes through an aperture 20 in the wheel-disc 5. To release the tread-band, in the event of the latter becoming ground-locked, a safety-link 21 is embodied in the chain 18. One end of this link is normally held by a relatively-weak pin 23 which is adapted to fracture when abnormal torque is set up between the wheel and the tread-band. The tread-plates may be fitted with transverse and circumferential strakes 10, 11, and wooden blocks may be fitted inside the tread-plates to adapt the device to a comparatively smaller tyre. The ends of the band are connected by a bolt 26 having a hooked end 25 engaging the hinge-socket on one end of the band, and an arm for engagement with a spring-catch 27 at the other end. In a modification (not shown), the chain 18 may be connected directly to the tread-plate.
Patent GB-183242-A (GB)
Title: Improvements in levels
IPC: G01C9/22
Filed: 1921-04-19
Abstract: 183,242. Shuttleworth, J. P., and Keogh, H. E. April 19, 1921. No Patent granted (Sealing fee not paid). Levels.-An annular chamber e, Fig. 1, of uniform cross-section and dimensions and half-filled with liquid, is mounted in a vertical face of a straight-edge a bearing one or more pairs of diametrically-opposed radial marks. The chamber e may be a glass tube or may be an open channel e<1>, Fig. 3, fitted with a glass cover-plate j sealed in position. A circular scale n angularly adjustable by a turn-button p may be mounted behind the glass j and may be clamped in adjusted position by a nut r. Reference has been directed by the Comptroller to Specifications 1511/99, 124,939, 125,285, and 126,860.
Patent GB-199877-A (GB)
Title: Improvements in and relating to display stands and the like
IPC: A47F5/04
Filed: 1922-04-22
Abstract: 199,877. Beasley, W. A. April 22, 1922. Rack stands : brackets, adjusting and securing.- A display stand comprises an upright secured to a 'base a and provided with a series of shelves c, the sides b of the upright being bevelled for wedging engagement with a correspondingly shaped recess provided in each shelf, a nut c<7>, on a screw c' secured to the shelf c and passing through a longitudinal slot b<1> on the upright, securing the shelf in position. Each shelf has a vertical member c<2>, a portion c<5> of which fits snugly in the slot b<1>. In a modification the inner faces of the slot b<1> are bevelled and the shelves are formed with correspondingly bevelled tongues. More than one upright may be provided.
Patent GB-717359-A (GB)
Title: An improved hoeing implement
IPC: A01B35/18
Filed: 1952-05-06
Abstract: 717,359. Rotary hoes. CANT, J. R. May 5, 1953 [May 6, 1952], No. 11384/52. Class 6 (1) A rotary hoe, of the kind wherein a fixed transverse blade 17 is preceded by a rotary unit comprising transversely-inclined blades 8 mounted between end-plates 7 so as to rotate on a horizontal axle 5, is characterized in that the rotorblades 8 are adjustable in length and each comprises a pair of overlapping blades 8, 8a held together by bolts 10 and slots 9, the end-plates being slidable transversely along the axle 5 to vary the width of cultivation. The frame comprises side-members 3, which are also laterally slidable with respect to the axle 5 and a crossrod 6, and which carry arms 16 for the blade 17. The arms 16 are adjustable vertically, longitudinally, and angularly on the members 3 through the slots 12, 14, and the blade 17 is interchangeable with longer or shorter blades. The unit may be drawn by, a tractor and may be one of a gang, or several rotors may be arranged coaxially on a single axle 5. The rotor may be power-driven or rotated by ground-contact.
Patent GB-527563-A (GB)
Title: Improvements in and relating to hollow rollers
IPC: B65H75/10
Filed: 1939-04-14
Abstract: 527,563. Hollow rollers. GAMMETER, W. F. April 14, 1939, No. 11427. [Class 34 (i)] A hollow roller 1 closed by end webs 2, 3, having hubs 6 secured thereto to form bearing surfaces for an axle 26, is provided with a guide tube 25 enclosing the axle and carried at its ends in recesses formed in the hubs. Intermediate webs 12, 13, with hubs 16 may also be provided, the guide tube 25 being made in separate lengths between the webs and its ends being similarly supported. The axle hubs, and guide tubes, in the form shown, are of square cross-section. The end hubs 6 consist of a flange 9, Fig. 4, engaging with the web, and a tapering body part 7 having a a flared recess 10 for receiving the end of a guide tube. The intermediate hubs 16 are of similar construction but have the tapering, parts 7 on both sides of the flange. The hubs are formed from tooled steel forgings and are electrically welded to the webs. The end webs are flanged for welding to the shell, and the intermediate webs are provided with bands 15 welded thereto and to the shell.
Patent GB-720270-A (GB)
Title: Improvements in or relating to mouldable compositions
Inventor: BENNITT JOHN HECTOR
IPC: C08L67/06
Filed: 1951-05-16
Abstract: A mouldable composition comprising a thermosetting unsaturated polyester resin and nylon filler in the form of filaments, yarns or fabric cuttings is prepared by mixing the ingredients in a heated mixer or between heated rollers.  The resin, which may be dissolved in a solvent, e.g. acetone, consists of or is prepared from an ester or an ester compound having at least two double bonds in the molecule.  Examples are those formed from diallyl phthalate, divinyl sebacate, glycol sorbate, allyl methacrylate, allyl maleate and diethylene glycol maleate.  The resin, which may vary from a viscous liquid to a crystalline solid, may comprise a mixture of the partly polymerized with the unpolymerized compound; and the unpolymerized component may be wholly or partly replaced by other monomers or partial polymers.  The term "nylon" refers to fibre-forming polyamides, the preparation of which is described in Specifications 461,236 and 461,237.  The examples specify filaments of average length of 1/2 mm. and fabric cuttings of 1/2 sq. in.  Mould lubricants, e.g. calcium stearate, and plasticizers and pigments may be added.  Other fillers, e.g. china clay, may also be used.  A catalyst, such as benzoyl peroxide or tertbutyl perbenzoate, is preferably included in the compositions before mixing to shorten the subsequent moulding time. Specification 594,579 also is referred to.
Patent GB-704858-A (GB)
Title: Improvements in or relating to high temperature grease
Filed: 1950-05-09
Abstract: An unsaturated aliphatic monobasic acidogenic material having 3 or 4 carbon atoms to the molecule is mixed with a mineral base lubricating oil, sufficient of an aqueous solution of an alkali metal hydroxide to convert the acidogenic material to the alkali metal salt of the acid is added, the mixture is stirred to effect neutralisation, and to the neutralized mixture there is added a saturated fatty acid containing 12 to 22 carbon atoms to the molecule mixed with additional mineral lubricating oil; the temperature is then raised to between 120 DEG F. and 220 DEG F. sufficient of an alkaline earth metal hydroxide or oxide slurried in mineral oil is added to neutralize the saturated fatty acid, and the entire composition is then heated to from 300 DEG F. to 450 DEG F. to effect dehydration and finally cooled.  In a modification the alkaline earth hydroxide or oxide is added to the neutralized unsaturated monobasic acidogenic material with subsequent addition of the saturated fatty acid. Specified unsaturated aliphatic monobasic acidogenic materials include acrylic acid, methacrylic acid, crotonic acid and their nitriles, acrylonitrile being preferred; the amount used may vary between 2 and 4 per cent. of the total composition.  The preferred saturated fatty acid is a mixture of hydrogenated fish oil acids, but hydroxy-stearic acid, stearic acid and the acids derived from beef fat, tallow and other glycerides may be used.  The amount may be from 10 to 20 per cent. by weight of the total composition.  A molar ratio of the acids of 1 : 1 is preferred.  If desired, a polyethylene glycol plasticizer may be added.  The hydroxides and oxides of calcium, barium and strontium may be used to neutralize the saturated fatty acid, calcium hydroxide being preferred, in an amount of from 1 to 3 per cent. by weight, based on the total composition.  The alkali metal hydroxide may also be used in an amount of from 1 to 3 per cent. by weight of the total composition.  In an example (all percentages by weight) 3.3 per cent. of acrylonitrile and one fourth of the total amount (74.8 per cent.) of the mineral oil of 100 S.S.U. at 100 DEG F. are mixed in a grease kettle and 2.7 per cent. of lithium hydroxide monohydrate dissolved in twice its weight of boiling water is added.  When reaction is complete, 16.7 per cent. of hydrogenated fish oil acids is added together with three fourths of the remaining mineral oil, and the mass is heated to 150 DEG F. Hydrated lime (2.5 per cent.) is slurried in the balance of the mineral oil and added to the mixture, the temperature being raised to 400 DEG F.  The grease is then cooled and homogenized.
Patent GB-159432-A (GB)
Title: Improvements in shaving brushes
IPC: A46B5/00
Filed: 1920-04-26
Abstract: 159,432. K÷hler, H. von. April 26, 1920. Hollow handles; fixing by taper sockets of special form.-The socket b carrying the tuft c of a shaving-brush is connected by webs d to an outer funnel-shaped socket a so that liquid can drain into the hollow handle f. The socket a is detachable from the handle so that the brush head can be inserted through the bottom of the handle, funnel first, the funnel projecting through the top and providing ventilation for the bristles. The bottom of the handle is closed by a lined screw-cap h.
Patent GB-579016-A (GB)
Title: Improvements in or relating to spring buffers
IPC: B61G11/18
Filed: 1944-06-17
Abstract: 579,016. Bearings. IBBOTSON BROS. & CO., Ltd., and HARTLEY, S. June 17, 1944, No. 11584. [Class 12 (i)] [Also in Group XXXII] In a spring buffer of the type in which the buffer head 12, Fig. 1, is carried by a spring- pressed metallic plunger 11 slidable in an outer metallic casing 10, binding together of the metallic surfaces through corrosion or friction is prevented by the provision between the plunger and casing of at least one hard synthetic resin sleeve 16 which acts as a bearing between the sliding parts. The sleeve preferably consists of a laminated cotton fabric bonded with a synthetic resin of the phenol-formaldehyde type and heathardened, a suitable material being that known under the Registered Trade Mark " Texolex." As shown in Fig. 1, the sleeve is fitted on the reduced end 15 of the plunger between a metal stop ring 17 and an end ring 18 screwed on the plunger, withdrawal of which from the casing is prevented by a lip or abutment 20. The sleeve and ring 17 may be in two or more parts assembled in a groove cut on the periphery of the plunger and the abutment 20 may be provided by a flanged ring screwed on the mouth of the casing. In another construction, Fig. 3, the sleeve 16 is fitted in a 'groove 25 in the casing. A lip 20 of a rib 27 serves as an abutment for a ring 28 fitted in a groove 29 in the plunger. In a further construction, the sleeve 16 floats between the casing and plunger. 'In all constructions, there may be more than one sleeve fitted.
Patent GB-1469748-A (GB)
Title: Production of coatings on wires
IPC: B29C48/06
Filed: 1973-03-10
Abstract: 1469748 Extruding coatings on to cores GENERAL ENG CO (RADCLIFFE) Ltd 11 March 1974 [10 March 1973] 11672/73 Heading B5A In order to overcome the inconsistency in the output rate of an extruder 20 coating cords, cables or wires 26, a positive displacement device, e.g. 24 a gear pump, multi-screw pump is positioned between each die 25 and the extruder 20 to ensure a constant supply of material for coating the wires 26. A pre-determined pressure may be maintained at the inlet to each device 25 by either driving the extruder 20 at a faster rate than the devices 24 or by employing a pressure responsive device P, P<SP>1</SP> or P<SP>11</SP> between the devices 24 and the extruder 20. The coated wire is cooled set or cured in a region S before it reaches one or more (Fig. 2) haul-up devices 28. The latter incorporates twisting, bunching, or laying-up means 29, 30 for forming a cable from individual coated wires. A sheathing die may be provided. More than one layer of coating material may be applied at least partly around a single wire (Fig. 3). Various elements, e.g. extruder, haul-up and device(s) 24 may be presynchronized with each other by a single variable speed mechanical linkage DG, synchronous motors or positive displacement hydraulic motors. The coating material may comprise a vinyl, an amide, a polyolefin or a natural or synthetic rubber.
Patent GB-166992-A (GB)
Title: Improvements in or relating to collapsible poultry coops, runs or brooders
IPC: A01K31/00
Filed: 1920-04-28
Abstract: 166,992. Dewey, J. H. April 28, 1920. Poultry houses and coops; rearing-appliances. -A poultry coop, run, brooder, or the like, has the front, back, and sides hinged to the frame carrying the roof so as to fold one over another when collapsed. The back is so hinged as to fold into the top frame A, the side E then folds over it, and the side D and front B are hinged to projections D<1>, B<1> so as to take, up the correct positions when folded successively.
Patent GB-642807-A (GB)
Title: Improvements in and relating to domestic fireplaces
IPC: F24B1/195
Filed: 1948-04-29
Abstract: 642,807. Firegrates. SMITH, W. H. April 29, 1948, No. 11717. [Class 126] A domestic fireplace is provided with a front fret comprising a freely movable centre member and two side members separate from but secured to the firestool. Side members 10, 11 of the fret are permanently attached to fireclay blocks 12, 13 carrying the metal grate bottom 14. The centre part 15 of the fret has feet 15a which enable it to stand with its lower edge 15b clear of the hearth level to allow entry of air when it is placed so that it overlaps the side members 10, 11.
Patent GB-185155-A (GB)
Title: Improvements in shuttle actuating or picking mechanism for looms
IPC: D03D49/24
Filed: 1921-04-23
Abstract: 185,155. Taylor, E. H. April 23, 1921. Picking-motions. - Underpick picking- sticks m, mounted to operate in vertical planes, are actuated by quadrant arms h carried by horizontal picking-shafts a, the sticks being connected to the quadrants by leather straps h<1>. The picking- shafts are actuated bv means of bowls c carried by studs c<1> secured to the shafts, the bowls being engaged by ordinary picking-cams d such as are used in overpick looms. Reference has been directed by the Comptroller to Specification 7811/85.
Patent GB-858222-A (GB)
Title: Improvements relating to bird scarers
IPC: A01M29/06
Filed: 1958-04-14
Abstract: 858,222. Bird scarers. NORTH, R., and KINSMAN, H. J. A. April 13, 1959 [April 14, 1958], No. 11807/58. Class 6(2). A bird scarer comprises a figure representing a human being, at least parts of which are treated with fluorescent paint. The parts 19, 20 and 21 of the figure are made of stiff material such as hardboard or metal, hinged together at 18 for facilitating the transportation of the figure, and the trousers 26 are made of a flexible, weatherproof material such as a synthetic resin. The figure is supported on a post which is in two parts, the upper part being rotatable relative to the lower part so that the figure can be rotated by the wind. Explosives on a slow-burning rope may be provided to simulate gun fire. Reference has been directed by the Comptroller to Specification 746,123.
Patent GB-822561-A (GB)
Title: Improvements relating to organochlorosilanes
IPC: C07F7/12
Filed: 1956-04-18
Abstract: Organochlorosilanes, particularly diorganodichlorosilanes, are prepared by reacting 2 or more different chlorosilanes, one being of the formula RmSiCl4-m, and the other R1nSiCl4-n, where R is alkyl, R1 is alkyl or aryl, m is 1, 2, 3 or 4, and n is 0, 1, 2 or 3, m and n always being dissimilar, under anhydrous conditions and in the liquid phase, in the presence of aluminium trichloride and of catalytic amounts of a monomeric silane containing hydrogen bonded to silicon, at a temperature of from 50 DEG  to 225 DEG  C.  Examples of alkyl radicals R and R1 are methyl, ethyl, propyl, isopropyl, butyl, amyl and octyl.  Examples of aryl radicals which R1 may be are phenyl, tolyl, xylyl, biphenyl and naphthyl. The silane catalysts include those of the formula R11nSiH(4-m-n)Clm, where R11 has the same meanings as R and R1 and in addition may be a halogenated radical, or an alkaryl, aralkyl, cycloaliphatic or higher alkyl radical, and m and n are 0 to 3 and their sum not greater than 3.  Amounts of 0.01 to 10% by weight of the total p  chlorosilanes are generally used. The amount of aluminium chloride is usually 1 to 15%.  The reaction is preferably effected at superatmospheric pressures, e.g. from 15 to 500 p.s.i.  In the examples: (1) an equimolecular mixture of Me3SiCl and MeSiCl3 is heated with SiHCl3 and AlCl3 at 150 DEG  C. at 150 p.s.i., to yield Me2SiCl2; (2) similar to (1) using MeSiHCl2 as second catalyst; (3) the second catalyst is MeSiHCl2 contained in SiMe4; (5) the second catalyst is PhSiHCl2; (6) a mixture of MeSiCl3, SiMe4, SiHCl3, MeSiHCl2 and Me2SiHCl with small amounts of Me2SiCl2 and Me3SiCl is heated at 58 DEG  C. under reflux with AlCl3, to give a mixture containing larger amounts of Me2Si Cl2 and Me3SiCl and no SiMe4; (7) as in (1) using a polysiloxane containing an Si-H group, but with no effect; (8) Me3SiCl is heated with PhSiCl3 using SiHCl3 as second catalyst to give Me2SiCl2 and MePhSiCl2; (9) Me3SiCl is heated with SiCl4 using SiHCl3 as second catalyst, giving Me2SiCl2, and small amounts of MeSiCl3 and MeSiHCl2.  Specification 575,667, [Group IV], and U.S.A. Specification 2,647,912 are referred to.
Patent GB-1197168-A (GB)
Title: Trycylic Ketones and a Process for the Manufacture Thereof
IPC: C07C45/51
Filed: 1969-03-06
Abstract: 1,197,168. Tricyclic ketones. F. HOFFMANN-LA ROCHE & CO., A.G. 6 March, 1969 [15 March, 1968], No. 11865/69. Heading C2C. The invention comprises tricyclic ketones of the formula wherein R 1 , R 2  and R 3  represent H, halogen, OH, C 1-7  alkyl, C 1-7  alkoxy, C 1-7  alkylamino, NH 2 , di-(C 1-7  alkyl) amino, SH or C 1-7  alkylmercapto; R 4  and R 5  represent H, C 1-7  alkyl or alkoxy; R 6  represents H or C 1-7  alkyl, and R 7  and R 8  represent H or C 1-7  alkyl or alkoxy with the proviso that at least one of R 7  and R 8  is C 1-7  alkyl or alkoxy; and acid addition salts thereof. They may be obtained by heating a compound of the formula or a compound of the formula wherein R<SP>1</SP> 2  represents halogen, OH, NH 2 , SH, C 1-7  alkyl, alkoxy, alkylamino or alkylmercapto, or di-(C 1-7  alkyl) amino; to a temperature of from 50 C. to 200 C. and, if desired, converting the product into an acid addition salt. Examples are given for the preparation of the compounds. They are useful in the preparation of perfumes and other scented compositions. Compounds of Formulµ II and III are obtained by reacting a phenol of formula with a propargyl halide of the formula wherein X represents a halogen atom in the presence of an inorganic base, an inert organic solvent and in the case of the preparation of compounds of Formula III in the presence of Cu powder. Examples are given of the preparation of these compounds.
Patent GB-1127010-A (GB)
Title: Yarn heaters
Inventor: LEE HAROLD WILLIAM
IPC: D02J13/00
Filed: 1966-03-22
Abstract: 1,127,010. Yarn heaters. E R N E S T SCRAGG & SONS Ltd. 14 March, 1967 [22 March, 1966], No. 11883/67. Heading D1F. The yarn heater described is identical to that of Specification 1,127,008 but claim  is characterised by the intermediate layer of the contact heater plate having a coefficient of thermal expansion between those of the backing plate and surface coating.