baber/WOPTO huggingface dataset:
Patent GB-983912-A (GB)
Title: Process for the production of organosilicon surface active agents
IPC: C08G77/46
Filed: 1961-03-23
Abstract: Siloxane-polyglycol copolymers are made by reacting an organopolysiloxane free from Sibonded hydrocarboxy radicals with a polyglycol at an elevated temperature.  The weight ratio of the siloxane, which may contain alkyl, alkenyl or aryl radicals, to the polyglycol, which is preferably derived from ethylene glycol and/or propylene glycol, may be from 1 : 1 to 1 : 15.  The reaction is effected merely by heating, e.g. from 150 DEG  to 300 DEG  C., in the presence or absence of solvents and catalysts, e.g. powdered Mg, Cu, Al or Zn, which can be removed from the reaction product by filtration. In a typical Example (1) a mixture of monophenylsiloxane - dimethylsiloxane copolymer containing hydroxyl groups and polyethyleneglycol (mol. weight = 300) was heated to 270 DEG  C. to yield a clear water-soluble copolymer.  Uses; as wetting, foaming, emulsifying or suspending agents; and in applying silicones, in water solution, to a surface.
Patent GB-352404-A (GB)
IPC: B02B1/02
Filed: 1930-04-04
Abstract: 352,404. Sifting-apparatus. BUHLER BROS., Uzwil, Switzerland. April 4, 1930, No. 10745. Convention date, Feb. 22. [Class 117.] Apparatus for dressing middlings, comprising reciprocating sieves and conveying troughs for the eduction of the sieved products, has a shaking conveyer in the second expansion chamber rigidly connected to one of the sieves and driven bv the driving-means which actuates the sieve. A shaking- conveyer 5 in the second expansion chamber 4, an air trunk 3, and a conveying trough 2 are all connected to a sieve frame 1 and driven by the same driving-gear, the frame 1 and the conveyer 5 being sealed by fabric strips. The trough 2 may be double, having a controlling flap 6, and the whole machine may be single, twin or of any other form. Separately balanced driving gear such as that described in Specification 202,995, [Class 80 (iv), Mechanism &c.], is used to drive the machine.
Patent GB-1454956-A (GB)
Title: Photographic film base
IPC: B29C55/12
Filed: 1974-03-11
Abstract: 1454956 Polyethylene-2,6-naphthalate films TEIJIN Ltd 11 March 1974 10800/74 Heading B5B [Also in Division G2] A film used as a base for a photographic film is formed from a substantially linear polyester of intrinsic viscosity, as measured in orthochlorophenol at 35‹ C., of 0À40 and with at least 90 mol. per cent of the structural units being ethylene-2,6-naphthalate units. The film is biaxially orientated and heat-set and has a haze of no more than 4À5%, a Youngs modulus of from 50,000 to 60,000 kg./cm.<SP>2</SP> in both the longitudinal and lateral directions. The film may be prepared from a blend of polymers, provided that at least 90 mol. per cent of the structural units in the blend are ethylene- 2,6-naphthalate units. The saturated shrinkage or saturated expansions at 180‹ C. in both longitudinal and lateral directions is no more than 0À9%.
Patent GB-1292866-A (GB)
Title: Process for the catalytic hydrogenation of nitriles and dinitriles
IPC: C07C209/48
Filed: 1970-03-06
Abstract: 1292866 Cobalt catalyst CHEMISCHE WERKE HULS AG 6 March 1970 [8 March 1969] 10813/70 Heading B1E [Also in Division C2] A supported catalyst for the catalytic hydrogenation of a nitrile to the corresponding amine comprises cobalt in a catalytically active state and a promoter for cobolt in the said reaction applied to a carrier which is one or more of the metals Fe, Co, Ni, Mn, Ti, V and Cr. The promoter is suitably Hg, Mn, Cr, Cu, Pa or Re. The catalyst may be prepared by either (a) precipitating a cobalt compound onto cobalt' powder, (b) mixing cobalt powder with a promoter and with cobalt oxide, hydroxide or carbonate, or (c) adding a solution of a soluble bicarbonate to a solution containing cobalt nitrate, manganese nitrate and/ or silver nitrate, separating washing and drying the precipitate, making into a paste with a shaping auxilliary, drying and reducing with hydrogen, the degree of reduction of the cobalt compound being from 30 to 95%.
Patent GB-142095-A (GB)
Title: Improvements in or relating to earth-working machines with mechanically rotated hoe drums
IPC: A01B63/06
Filed: 1920-04-19
Abstract: 142,095. Fabrique d'Automobiles Berna Soc. Anon, (known as Motorwagenfabrik Berna Akt.-Ges.). April 17, 1919, [Convention date]. Hoes; motor implements; adjusting parts of implements; frames.-To facilitate detaching a rotary hoe from a motor-tractor in order that the tractor may be used with other implements, the power for both the drive of the hoe and its raising and lowering is transmitted to the detachable part through a single member. The rotary drum 3 which is driven through bevel-gearing and a reduction gear from a shaft 15 connected with the tractor power shaft by a universal joint, is suspended from a bracket 2 at the end of the tractor frame 1 by a rope 4 which passes round a pulley 7 mounted on a sheet-metal lining 5 enclosing the drum. The rope is attached to a screwed rod 8 which passes through a nut 9 which is mounted to have no lateral movement in a bearing 10 carried by the hoe frame. The nut is adapted to be rotated by gears 13, 17 on sleeves which can be clutched to the shaft 15 by operating a clutch lever 29 secured by a pivot 21, the two gears being arranged to rotate the nut in opposite directions. The lever 29 is operated by the attendant on the tractor through link 30, lever 33, and link 31. On throwing in the clutch, the nut is rotated causing the shaft 8 to move longitudinally. This movement continues until the clutch is thrown out by hand, or until a shoulder 39 on the shaft engages an adjustable stop 40 or the end of the shaft engages the end of a sleeve 37. On the stop 40 or the end of the sleeve being engaged, rods 38, 36 are operated to swing over the lever 29, thus freeing the clutch and leaving the hoes either raised or in working position. The stop 40 can be set for any desired depth of working by a hand-wheel 41, the depth being shown by an indicator 43. The shaft 8 and the nut may be arranged vertically, the pulley 7 being dispensed with. A sieve 46 may be fitted behind the drum. Coulters 49 attached to the cover 5 may be provided to steady the drum. Small carrying-wheels 51 are mounted on the cover for transport when the drum has been detached from the tractor. The lifting and lowering device may be applied to other mechanically operated implements.
Patent GB-211748-A (GB)
Title: Improvements in the manufacture of gas from coal or the like
IPC: C10J3/00
Filed: 1923-04-21
Abstract: 211,748. Travers, M. W., and Clark, F. W. April 21, 1923. Producers. - In the generation of water gas from bituminous fuel, the gas evolved from the coal in the preliminary distillation chamber during the blow is drawn off at a determined rate, and delivered to a. gas holder after passing through a condenser to remove the water vapour, and through a Venturi tube so as to obtain an indication of the rate of gas withdrawal.
Patent GB-1292185-A (GB)
Title: A feeding appliance for livestock
IPC: A01K5/02
Filed: 1970-03-06
Abstract: 1292185 Livestock feeding appliance C S J SPARKES 19 April 1971 [6 March 1970] 10949/70 Heading AIM A feeding appliance for livestock comprises a wall or fencing 2, a cone 16 which extends into a chute 10 the height of which may be adjusted by means of telescopically mounted legs 12. In a modification the chute 10 may be supported from the bottom of the wall 2 by bars bolted at their upper end to eyes on the chute. Feeding spaces 4 are also provided.
Patent GB-322150-A (GB)
Title: Improved construction of igniter and holder for matches
IPC: A24F27/26
Filed: 1929-04-10
Abstract: 322,150. Holt, A. April 10, 1929. Ash-trays. - In a match holder provided with striking- means, a base or body is grooved or recessed to receive the matches and these are encircled by elastic means in the groove to produce pressure between a match and the striking-surface when the match is being withdrawn. As shown in Fig. 1 applied to an ash-tray, the circular body 1 is grooved at 3 and drilled at 6, 6a to receive the circularly-arranged matches 7. Disposed in the groove and within or outside the circle of matches is a strip 8 of igniting material, and surrounding the whole is an elastic band 9.
Patent GB-1255415-A (GB)
Title: Semiconductor device with improved ohmic contact
IPC: H01L21/28
Filed: 1969-03-03
Abstract: 1,255,415. Semi-conductor devices. R.C.A. CORPORATION. 3 March, 1969 [22 March, 1968], No. 11097/69. Heading H1K. A region of a semi-conductor device having a junction intersecting a surface where it is covered with an insulating layer is contacted by means of a layer of crystalline semi-conductor material disposed in an opening in the insulating layer and having a thickness greater than that of the insulating layer and a layer of metal on the crystalline layer. As shown, Fig. 1, in an overlay transistor having an N type collector region 6 and a P type base region 10 provided with heavily doped collector and annular base contact regions 2 and 8 respectively, a plurality of emitter regions 14 are provided by depositing phosphorus from the vapour phase to form a compound layer (e.g. P 2 O 5 ) over the surface of an apertured SiO 2  mask 20, and heating to diffuse-in the phosphorus. The phospho-silicate glass layer which forms over the mask is removed by etching. The wafer is then subjected to an epitaxial deposition process to provide N type emitter contacts 16 in the windows the process being continued until these regions have grown to a thickness greater than that of the oxide layer 20 and have started to spread out on its surface. Windows are then formed over the base contact regions and aluminium is deposited, masked, etched and sintered to produce emitter contacts 18 and interconnections (not shown) and base contacts 12. The insulating layer may also be silicon nitride. In an alternative embodiment, Figs. 2 to 4 (not shown), emitter windows are formed in the insulating layer (20) a shallow phosphorus diffusion is performed, N+ type contacts (22) heavily doped with phosphorus are epitaxially grown in the windows, the surface impurity concentration of the epitaxial contacts is increased by a phosphorus diffusion, and the device is then heated to diffuse phosphorus from the epitaxial contacts (22) into the P type base region (10) to form the emitter regions (24). Ohmic contacts are then applied. The crystalline contact material may also be a polycrystalline semi-conductor material and the overlying metal may also be indium or tungsten. The semi-conductor wafer may also be of germanium or of a III-V compound.
Patent GB-315475-A (GB)
Title: Improvements in or relating to lifting-jacks
IPC: B66F15/00
Filed: 1928-04-14
Abstract: 315,475. Jones, J. M. April 14, 1928. Jacks.-A lever lifting-jack has a movable fulcrum working in a slotted guide, the lever being connected to the crutch or load pillar by means of a pin working in slots in the casing. The baseplate 10 carries supports 12 provided with slots 25 forming a guideway for a roller bearing pin 22 forming the movable fulcrum of the lever 20, which is connected to the crutch pillar 14 by a pin 39 working in slots 19 in the casing 11. By depressing the handle 32 the fulcrum pin 22 traverses the slots 25 as the load is raised, the load being sustained by a pawl 29 pivoted to the supports 12 engaging the pin 22 or a roller thereon. A strut 38 may connect the casing 11 and supports 12.
Patent GB-777563-A (GB)
Title: Improvements in or relating to thermo-hardenable adhesives
IPC: C09J201/00
Filed: 1953-04-22
Abstract: A thermohardenable adhesive having an initial viscosity below 200 c.p.s. at its hardening temperature comprises a mixture of a solid component of mol. wt. above 10,000 and containing 4-20 per cent by wt. (based on the atoms in the chain) of highly polar groups with at least an equal weight of a thermohardenable component of mol. wt. below 10,000, the thermohardenable component setting sufficiently slowly for it to react with the solid component before becoming fully hardened.  The solid component is a vinyl polymer with 7-20 per cent alcohol groups, 2-10 per cent acetate groups and 70-91 per cent acetal groups, a vinyl polymer with 7-30 per cent alcohol groups and 93-70 per cent acetate groups, a superpolyamide, polyurethane, a polyester with free hydroxy groups, or a cellulose ester or ether. The thermohardenable component is an epoxy resin, an aminoplast or a mixture of a hydroxy-containing linear polyester with a di- or tri-isocyanate.  It may be a liquid or a solution, and the solid component is at least partially soluble in it at the hardening temperature.  It may be diluted with alcohols, ester alcohols or ketones.  Solvents must be removed before uniting surfaces unless the parts to be united are porous.  Surfaces to be united may be coated with thermohardenable component, the solid component, preferably as a powder being then applied to at least one of the surfaces, or the solid component, preferably as a foil may be pressed between the coated surfaces.  Powders preferably have a grain size of 0.25-0.75 mm.  In the examples: (1) surfaces are coated with a resin prepared from urea and formaldehyde condensed in presence of ammonia and alcohol.  A thick foil of an interpolymer of equimolar proportions of a hexamethylene diamine-adipic acid condensate, caprolactam polymer and a p,p1-diaminodiphenylmethane-adipic acid condensate is laid on one surface.  The adhesive is hardened between the connected surfaces by heating for 2 hours at 180 DEG  C. and a pressure of 2-10 kgm/cm.2.  (11) Surfaces are coated or strewn with a mixture of a condensate from 4,4-dihydroxydiphenylmethane with epichlorhydrin and a hardener.  The coating may be fused if desired.  Polyvinyl formal (10 per cent alcohol, 5 per cent acetate and 80 per cent formal groups) is strewn on the coated surfaces which are then united with heat and pressure.  (III) Surfaces are coated with the urea-formaldehyde condensate of Example (I) strewn with nitrocellulose and united by five hours' heating at 110 DEG  C. (IV) Surfaces are coated with a solution in ethyl acetate of a phenol-stabilized adduct of trimethylol propane and m-toluene di-isocyanate and of a linear polyester from adipic acid, hexane triol and propylene or 1,3-butylene glycol, the polyvinyl formal of Example (II) is strewn thereon and the surfaces connected by heating in contact at 180 DEG  C.  Reference has been directed by the Comptroller to Specification 726,713.
Patent GB-166714-A (GB)
Title: Improvements in or relating to the spring forks or anti-vibration devices of motor cycles, cycles, and the like
IPC: B62K25/24
Filed: 1920-04-22
Abstract: 166,714. Tisdell, T. A. April 22, 1920 Spring devices.-A motor or other cycle fork is coupled to the lower extremity of the steering- head by links b, Fig. 1, and is adapted to slide with relation to members c, which are connected to the steering-head by a leaf-spring g serving to control rocking movement of the fork. Compression springs d act on the members c, and rebound springs may also be provided. The leafspring is secured to the fork crown, and may have an extension h connected to the upper part of the steering-head. In modifications, the part h may be separate and inverted, the members c may be connected to the centre of a leaf-spring g', Fig. 3, having its upper end mounted between guides i<1>, i<2>, or the members c may be connected to the lower end of a leaf-spring, the upper end of which is connected to the upper part of the steering- head.
Patent GB-622220-A (GB)
Title: Improvements in and relating to means for reducing the noise in stationary induction apparatus
IPC: H01F27/33
Filed: 1946-04-11
Abstract: 622,220. Sound insulation. BRITISH THOMSON-HOUSTON CO., Ltd. April 11, 1946, No. 11157. Convention date. April 18, 1945. [Class 64(ii)] [Also in Groups XXXV and XL(b)] Multiple layers of fine wire screen 7 are wrapped around but spaced from a transformer 1, 2 situated in a tank 3 containing an insulating liquid 5, for the purpose of absorbing sound emanating from the transformer, adjacent layers being positioned without any alignment of their openings. The mesh of successive layers of the screen may become progressively finer in the direction of sound attenuation therethrough. Layers of organic material such as cotton cheese-cloth, gauze or other suitable material may be placed between alternate layers of the screen. Copper is. mentioned as a suitable material for the screen which may be wound spirally around the transformer to form a cylindrical structure extending from the bottom of the tank at least up to the surface 4 of the liquid. The Specification as open to inspection under Sect. 91 comprises also an arrangement of layers of wire mesh in groups 8, Fig. 4 (Cancelled) arranged radially around the transformer and backed, if desired by a cylindrical sound reflector 9, which may be imperforate. This subjectmatter does not appear in the Specification as accepted.
Patent GB-394939-A (GB)
Title: Improvements in reflectors
IPC: F21V7/00
Filed: 1933-04-13
Abstract: 394,939. Vehicle-lamp refiectors. SCHIMPFF, E., 717, Harrison Avenue, Scranton, Pennsylvania, U.S.A. April 13, 1933, No. 11159. Convention date, April 14, 1932. [Class 75 (ii).] A vehicle-lamp reflector is of substantially parabolic form with a smooth upper half 10 and a lower half which is formed with an outer series of symmetrical dihedrons 12, the sides 16, 17 of which form equal angles with planes passing through the axis of the reflector, and with an inner series of dihedrons 11 each having a relatively wide surface 14 conforming longitudinally to a parabolic surface and a relatively narrow surface 15 substantially radial to the axis of the reflector. The surfaces 14 are flat laterally and are bent inwardly about 15‹ to planes tangential to the parabolic surface so as to deflect light towards the sides of the road. The surfaces 16, 17 are preferably at 45‹ to the tangents, and the dihedrons 12 are smaller than and preferably only half the length of the dihedrons 11.
Patent GB-117161-A (GB)
Title: Improvements in Clinometers.
Inventor: GAYNOR THOMAS FRANCIS
IPC: G01C9/00
Filed: 1917-08-03
Abstract: 117,161. Gaynor, T. F. Aug. 3, 1917. Clinometers.-A universal clino. meter for use with aircraft, submarine and other ships, railway vehicles, &c., comprises a plummet which keeps a vertical position in a transparent spherical vessel filled with liquid, but has no fixed connexion with the vessel. The piummet consists of a glass tube A<1>, Fig. 4, provided with a weight A, an air space A<7>, and a plug A'. The plummet is either heavier or lighter than the liquid and rests in contact with the bottom or top of the container. The vessel C has an opening closed by two plugs, between which is an air space to allow for expansion of the liquid, and is gripped elastically in a casing G<1>, G<2> formed with observation openings fitted with adjustable indicator cross-bars and a graduated dial. The plummet is illuminated by one or more electric lamps L shining through sheets J<14> of translucent material, or is rendered self. luminous by luminous paint or radioactive material. Fig. 8 shows an arrangement in which the image of the plummet in a mirror N is also seen, so that its inclination in two directions can be observed simultaneously. Fig. 17 shows an horizontal disk D fitted to the plummet to indicate by its apparent shape the inclination to or from the observer. The two sides of the disk may be differently coloured. The edges of the disk and the bottom of the plummet may be arranged to make contact with plugs T, T<1>, T<2> placed in the circuit of an electric signalling or controlling device. An air bubble in the vessel C may act as a level indicator, or a spirit level may be arranged in a lateral extension of the vessel. Any vibration in the structure to which the clinometer is applied assists the plummet in taking up a vertical position, when the inclination is altered. In order to obviate the effects of centrifugal force, a weight may be placed at the upper end of the plummet below the plug A<5>. A magnetic needle may be attached to the disk D to act as a compass.
Patent GB-1013454-A (GB)
Title: Sulphone-substituted derivatives of pyrazoline
IPC: C07D231/06
Filed: 1963-03-21
Abstract: Brightening agents which can be incorporated in moulding or spinning masses used for the production of formed bodies such as foils, fibres or filaments or in plastic masses, e.g. soft polyvinyl chloride, comprise compounds of formula <FORM:1013454/C3/1> in which R1 and R2 represent hydrogen or halogen atoms or alkoxy radicals, R3 is a hydrogen atom or unsubstituted phenyl radical, and R4 is an alkyl radical which may be substituted by cyano, carboxyl, sulphone or alkyl substituted amino groups.  In Example (2), 1 - (p - methylsulphonylphenyl) - 3 - p - (chlorophenyl)-pyrazoline is incorporated on a roller mill into opaque soft polyvinyl chloride. The concentration of brightening agent is generally far below 1% by weight of the material to be brightened.  Specifications 669,590 and 808,113 are referred to.ALSO:The invention comprises compounds of formula <FORM:1013454/C2/1> in which R1 and R2 are hydrogen or halogen atoms, or alxoxy radicals R4 is a hydrogen atom or unsubstituted phenyl radical, and R4 is an alkyl radical which may be substituted by cyano, carboxyl, sulphone or alkyl substituted amino groups, and the preparation thereof by the action of sulphone group containing phenyl hydrazines on vinyl aryl ketones, o -halopropiophenones or the salts of aminoethylaryl ketones, or in some cases by reacting substituted styrenes with 3-aryl sydnones. The pyrazoline compounds are nearly colourless, blue-fluorescent substances and are used as brightening agents. (See Divisions C3 and D1. Specifications 669,590 and 808,113 are referred to.ALSO:Brightening agents for paper, leather and textile materials, especially synthetic fibres, e.g. polyacrylonitrile, polyamide or allulose ester fibres, comprise compounds of formula <FORM:1013454/D1-D2/1> in which R1 and R2 represent hydrogen or halogen atoms, or alkoxy radicals, R3 is a hydrogen atom or unsubstituted phenyl group, and R4 is an alkyl radical which may be substituted by cyano, carboxyl, sulphone or alkyl substituted amino groups.  The compounds are used in aqueous solutions or dispersions, or in solution in organic solvents. Example 1 illustrates the use of 1-(p-methylsulphonyliphenyl)-3-phenylpyrazoline in aqueous solution in treating polyacrylonitrile or cellulose acetate fibres.  The concentration of brightening agents is generally far below 1% by weight of the material to be brightened.  They may be used in combination with washing agents.  Specifications 669,590 and 808,113 are referred to.
Patent GB-168851-A (GB)
Title: Improvements in parquetry construction
IPC: E04F15/04
Filed: 1921-04-19
Abstract: 168,851. Cook, D. E. Sept. 8, 1920, [Convention date]. Flooring-slabs.-Parquetry sections are formed of transverse and longitudinal members 6, 9 recessed on opposite sides alternately and intermeshing at right-angles. The ends 12 of the members 9 on one section are recessed to engage the members 6 on an adjacent section. The members 6 may be close together or may be separated by square spaces containing insertion pieces. The members may be laid diagonally in the sections.
Patent GB-699924-A (GB)
Title: Improvements in yielding ring or arch mine supports
IPC: E21D11/20
Filed: 1951-05-15
Abstract: 699,924. Mine arch or ring supports. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES. May 15, 1951 [May 15, 1590], No. 11370/. Class 20(ii) In mine arch or ring supports comprising overlapping U-sections, the webs have projecting ribs 4, Fig. 2, or the flanges have hook-shaped extensions 5, Fig. 1, the points of which on one section are sheared off by the other section when one slides in the other under roof pressure. Alternatively, both ribs and extensions may be provided on the sections or a plurality of ribs provided or the rib 4 may extend outwardly of the section. The ribs and/or extensions extend along the length of the sections but at the overlapping portion of two sections the points on one section are removed.