baber/WOPTO huggingface dataset:
Patent GB-537718-A (GB)
Title: Improvements in dashpot devices for damping oscillatory movements
IPC: F16F15/023
Filed: 1940-01-23
Abstract: 537,718. Indicating-apparatus. ENGLISH ELECTRIC CO., Ltd., and TILSTONE, G. Jan. 23, 1940, No. 1382. [Class 106 (iv)] [Also in Group XXXII] A device for damping oscillatory movements of instruments comprises a flat circular sealed container 8 pivotally mounted at or near its axis. A liquid or a powder 10, e.g. powdered tungsten, occupies the lower part of the container, and when the latter oscillates, exercises a braking effect thereon in each direction, without biassing tendency. The container may be mounted on a shaft 5 inclined to its axis, as shown in Fig. 4, or may have an inner ring partition to form an annulus for containing the liquid &c. 10. The rim 9 may be flat or part spherical. The container may be mounted on the spindle of the instrument pointer, or be geared up or down thereto, or may be linked to a reciprocating or rotary member the motion of which is to be braked.
Patent GB-1215375-A (GB)
Title: Improvements in or relating to the production of alumina
IPC: C01F7/144
Filed: 1968-01-10
Abstract: 1,215,375. Alumina. KAISER ALUMINUM & CHEMICAL CORP. 10 Jan., 1968 [16 Feb., 1967], No. 1493/68. Heading C1A. Alumina hydrate is precipitated continuously from a supersaturated caustic aluminate liquor by a proeess eomprising (a) continuously feeding the liquor to a first precipitation stage at a temperature from 150-170 F., said liquor having an alumina to caustic (A/C) ratio greater than 0-500; (b) seeding the liquor in the first stage with alumina hydrate of a predetermined seed surface area; (c) passing the liquor and seed through successive precipitation stages with ambient cooling until the A/C ratio is 0À400 to 0-500; (d) flash cooling the liquor by at least 10 F. to increase the driving force of the precipitation reaction; (e) passing the cooled liquor and seed through further precipitation stages with ambient cooling until the A/C ratio is about 0-350; (f) withdrawing depleted liquor and precipitated alumina hydrate from the last precipitation stage; and (g) classifying the alumina hydrate into coarse and fine particular size fractions while it is separated from the depleted liquor. The inlet liquor is preferably at a temperature of about 160 F., and the flash cooling lowers the liquor temperature, preferably to about 140 F. In Fig. 1, aluminate liquor is fed into a first precipitation tank 10 via conduit 11, and is seeded with a seed slurry fed via conduits 17 and 23, and agitated by suitable means. The liquor passes by gravity flow to tanks 12 and 14, and is then cooled in flash-tank 41 before passing to tanks 16 to 30. Screening takes place in the three thickeners 60, 80, and 90, and provision is made as shown for recycling seed slurry and for removing the product.
Patent GB-301234-A (GB)
Title: Improvements in foot coverings for wear under the stocking or sock
IPC: A43B7/22
Filed: 1928-01-17
Abstract: 301,234. Spafford, J. A. Jan. 17, 1928. Foot-arch supports.- A fabric foot covering and arch support for wear beneath the sock or stocking comprises a sole-portion 8 extending to a position just in rear of the foot-arch, a toe-enclosing portion 7, and a pocket 9 formed in the sole portion to receive removably one or more felt or like pads 12 designed to give the required support to the footarch.
Patent GB-587828-A (GB)
Title: Improvements in and relating to a seat or the like cushion
IPC: A47C7/18
Filed: 1945-01-19
Abstract: 587,828. Spring cushions. DUNLOP RUBBER CO., Ltd. Jan. 19, 1945, No. 1557. Convention date, Jan. 21, 1944. [Class 52 (iv)] A seat or the like cushion comprises a base 11, seat springs 10 and a border wire 13, 14, 15, 16 spaced remotely from the base and connected to the springs 10 by clips 17, being formed at intervals at the front edge 13 into downwardly depending loops 18, between which are connected inwardly extending reinforcing springs 20 the other ends of which are connected to the base. These reinforcing springs 20 may be of wire and formed with a coil spring 23 as shown or they may comprise C-shaped spring metal strips 32, Fig. 6. The seat springs may comprise helical springs arranged vertically as shown or spring wire or blade springs stretching horizontally across the seat. Specification 570,050 is referred to.
Patent GB-137606-A (GB)
Title: An improved method of and means for elevating or transporting sand or similar material
IPC: E02F3/92
Filed: 1919-01-21
Abstract: 137,606. Squire, C. E., (Squire, R. H.). Jan. 21, 1919. Direct liquid-pressure apparatus. - Solid material such as sand for filling mine workings &c. is elevated and transported from a river bed &c. by means of a vessel which is placed in or sunk into the material so that the latter may enter therein, after which water is forced into the vessel to expel the material through a delivery pipe. In the form shown, the vessel a has a perforated shoe g through which water from a pipe h is admitted tn displace the sand &c. and facilitate sinking of the vessel. Sand &c. then enters the vessel through an opening b which is afterwards closed by a valve c actuated by water supplied through a pipe f. Water is then admitted through a pipe c to deliver the sand &c. through a pipe d to a hopper &c. The cycle is then repeated. Suitably timed valve gear may automatically control the operation. The vessel may comprise two or more receiving-chambers which may be charged successively.
Patent GB-511478-A (GB)
Title: Improved means for the conveyance of liquid in a certain direction in reciprocating mechanisms, particularly in crank mechanisms for internal combustion motors
IPC: F01M1/06
Filed: 1939-01-17
Abstract: 511,478. Cooling reciprocating mechanisms. THEGE, E. O. P. Jan. 17, 1939, No. 1652. [Class 122 (i)] [Also in Group XXXIV] In using the inertia of liquid e.g., oil for lubricating and/or cooling to convey it through hollow reciprocating parts of machines the usual non-return sliding valves are provided with liquid buffers, as shown in Fig. 4, formed of enclosed liquid 32 automatically cut off and struck by a sliding sleeve 21 in its extreme positions, thereby, as it oscillates due to inertia and to inertial pressure of liquid on the piston surfaces shown, preventing breakage due to shock. In Fig. 1 the crank of an internal combustion engine is shown with bores 6 and 29 leading to a non-return sliding valve 21 as above, mounted in the connecting rod 4 by means of a rod 8, oil being pumped. upwards by inertia through passages 7 and 9, a bore 12 in the cross-head pin, radial bores 28, peripheral passages 13 in the cross-head bearing, a chamber 14, a non-return sliding valve 24 and passages 15 to the piston, and back via a hollow tube 16, a pipe 17 and a tube 18 telescopically mounted in a fixed tube 19 to the engine sump. The non-return valve 24 is provided likewise as shown in Fig. 6 with a sliding sleeve adapted to enclose oil buffers 40 and 44 and having piston surfaces. A snifting spring valve 60, Fig. 1, opening under atmospheric pressure when low oil pressure on it due to the inertia of the oil occurs in the tube 18 facilitates oil discharge. Other modifications of the valves and supporting means therefor are described.
Patent GB-103688-A (GB)
Title: Improvements in Cigar, Cigarette and Match Cases, Coin Holders and the like.
Inventor: HOUGH HERBERT DORRANCE
IPC: A24F15/20
Filed: 1916-02-03
Abstract: 103,688. Hough, H. D. Feb. 3, 1916. Contents, facilitating access to; fittings, internal.-Cigarette, cigar, and match cases, coinholders, vanity cases, &c. are constructed with the usual halves or lids 9, 10 hinged together, and with a holder for the cigarettes &c. which becomes centralized when the case is opened. The holder consists of two side members 15, 16 formed with turned-in bottoms 17 and hinged together so that they may be turned out to receive the cigarettes, these being held between pairs of somewhat staggered flutings formed in the side members. The holder is supported on two standards 20 pivoting on the hinge spindle 12. Bow springs 22, 23 are connected to eyes at the outer edges of the holder members, and their ends pass slidably through eyes secured to the lids 9, 10. When the lids are released from a catch that normally holds them closed, the springs open the lids and raise the holder, with its members pressed together, to a central position between the lids, so that the cigarettes &c. may be easily withdrawn.
Patent GB-985186-A (GB)
Title: Improved magnetohydrodynamic generator in which short circuit and effects are reduced
IPC: H02K44/08
Filed: 1962-01-17
Abstract: 985,186. Generators operating by electromagnetic interaction with fluids. AVCO CORPORATION. Jan. 17, 1962 [Feb. 2, 1961], No. 1671/62. Heading H2A. In a magnetohydrodynamic generator eddy current losses upstream of the electrodes are reduced by injecting an ionizable seed material, through injectors spaced inwardly from the duct walls, at the effective beginning of the magnetic field to increase the conductivity of the working fluid immediately downstream of this point. As shown, seed material is supplied through injectors 41 which are positioned within duct 21 immediately upstream of segmented electrodes 24 and at the upstream edge of the magnetic field produced by winding 25. In a modification the seed may be supplied from orifices in the upstream faces of tubes which span the duct, Figs. 6 and 7 (not shown). Usual seeding materials, e.g. alkali metal vapours in a carrier which may be combustible, are used. Reference has been directed by the Comptroller to Specification 917,604.
Patent GB-545978-A (GB)
Title: Improvements in or relating to straight-bar knitting machines
IPC: D04B11/00
Filed: 1941-02-08
Abstract: 545,978. Knitting-machines. BLACKBURN & SONS, Ltd., G., START, H. W., and START, E. Feb. 8, 1941, No. 1697. [Class 74 (ii)] Safety mechanism is provided in a straight - bar machine for preventing the catch bar falling into operative position before the draw mechanism has completed its motion. Means may also be provided for disconnecting the drive of the machine if the timing of the draw mechanism becomes incorrectly adjusted. An arm A is secured to the shaft B controlling the rising and falling of the catch-bar B<SP>1</SP> and supports a finger C and a catch D in the form of a bell-crank lever operated by a cam E on the slur box tie bar F. The cam is so disposed on the bar F that at the commencement of the draw it moves iinto engagement with the free end of the lever D and holds it in operative position so the shaft B is controlled by the arm A until the draw is completed. The machine drive is disconnected by a spring actuated plunger O connected to a control rod P and normally held against the action of the spring by a catch R<SP>1</SP>. The catch is moved by a second cam S on the tie bar F to release the plunger O if the timing of the draw mechanism becomes incorrectly adjusted.
Patent GB-974786-A (GB)
Title: Improvements in and relating to electrical connectors
Inventor: RENYARD HAROLD EDWARD
IPC: H01R24/58
Filed: 1960-01-18
Abstract: 974,786. Two-part couplings combined with switches; switches held set and freed mechanically. RENDAR INSTRUMENTS Ltd. April 13, 1961 [Jan. 18, 1960; April 7, 1960], Nos. 1705/60 and 12381/60. Headings H2B and H2E. A jack socket comprises a body 30 of insulating material such as polypropylene or nylon having transverse slots such as 35, 36, 37, of differing depths, formed in its upper portion and extending down to about the middle of a longitudinal aperture 31, each slot accommodating a resilient, L-shaped strip metal contact such as 38, held in an open-sided slot 40 formed in the side of the body preferably by small tongues 39 punched out of the contact and which penetrate into the body material. On the opposite side of the body are similarly secured stationary contacts 41 with which contacts 38 co-operate. On insertion of a jack plug into aperture 31 to engage contacts 38, the latter are lifted and contact pairs 38, 41 are broken. Alternatively it may be arranged that the contact pairs are closed on insertion of the plug or the plug may operate changeover contacts. The jack socket may be mounted on a panel by means of screwthreaded extension 32, spring washers 33 and nut 34.
Patent GB-429050-A (GB)
Title: Improvements in or relating to enzymes
IPC: C12N9/42
Filed: 1934-01-17
Abstract: Cellulose and hemicellulose-splitting enzymes are obtained by cultivating a mould or fungus on a nutrient medium rich in cellulose until spores are plentifully developed and extracting the enzymes. Suitable media are bran and sawdust impregnated with nutrient solutions; materials such as grain and malt are not regarded as "rich in cellulose."  Suitable moulds are of the genera aspergillus, penicillium, rhizopus, botrytis, fusarium, and oidium.  The enzymes are extracted with water and may be purified by adsorption by metal oxides and hydroxides, kaolin, silica and the like in an acid medium and elution in an alkaline medium; the solution may be first dialyzed.  The cellulase may be freed from xylanase by adsorption with animal charcoal in an acid medium and elution in an alkaline medium.  The removal of cellobiase may be effected by adsorption with natural aluminous materials such as bauxite and diaspore which do not adsorb cellulase.  Inulin-and mannane-splitting ferments and inert substances may be removed by dialysis against flowing water.  The enzymes may be isolated by precipitation with alcohol, and the precipitate may be washed with dilute alcohol to remove unpleasant taste.  In an example, bran is stirred with water, which may contain nutrient salts, sterilized at 100--120 DEG  C., cooled to 30 DEG  C., inoculated with aspergillus orycae and left for 6 days at 30 DEG  C.; at 40 DEG  C. 3 to 4 days would be required, but at 25 DEG  C. a much longer time.  The mass is extracted with water, concentrated and dried.  The Specification as open to inspection under Sect. 91 states that the individual enzymes in the extract may be separated, and mentions grain seeds and malt as suitable initial materials.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1299176-A (GB)
Title: Improvements in prime mover assemblies for battery-propelled land vehicles
Inventor: GURWICZ DAVID
IPC: H02K47/04
Filed: 1969-01-10
Abstract: 1299176 Dynamo-electric machines RANSOME SIMS & JEFFERIES Ltd and SEVCON ENG Ltd 12 Jan 1970 [10 Jan 1969] 1730/69 Heading H2A A driving arrangement for a battery-propelled vehicle comprises a field-controlled D.C. motor 25 and an A.C. induction motor 31 located in a common housing 1 with their rotors 23, 33 mounted on a common shaft 17, the housing being divided by a non-magnetic separator 21 which provides flux insulation for the two machines. The A.C. motor when connected to an external source of power via a centrifugal switch 37 drives the D.C. motor as a generator for charging the battery. Secured to one end of shaft 17 is a fan 43 which draws cooling air through the machines and through a controller 45 for the motor 25, the air entering the housing and controller through apertures 39, 41, 49. Drive is transmitted from the other end of shaft 17 through a reduction gear 55 and a preferably electromagnetic clutch 57.
Patent GB-523288-A (GB)
Title: Improvements in and relating to lens plates for street lighting and other purposes
IPC: F21S13/00
Filed: 1939-01-18
Abstract: 523,288. Prism plates HOLOPHANE, Ltd., an( ENGLISH, S. Jan. 18 1939, No. 1763. [Class 75 (ii)  A prism plate similar to that described in Specification 423,761 i modified to make it suit able for use with horizontal source 7. A reflector 3 can be fitted to direct light through an upper clear part 4 o the plate.
Patent GB-726836-A (GB)
Title: Improvements in or relating to devices for locating concentric machine parts
IPC: F16C35/06
Filed: 1953-01-21
Abstract: 726,836. Securing bearing races on shafts. DEUTSCHE STAR KUGELHALTER GES. Jan. 21, 1953 [Jan. 23, 1952], No. 1833/53. Class 80 (2) [Also in Group XXXIV]. A journal 7, Fig. 3, is mounted in bearings 6 by means of corrugated rings 10 which are pressed between the journal and the inner races of the bearings. The rings 10 are of steel or bronze for example, and are rolled from strip, the corrugations as in Fig. 2, proceeding axially of the shaft and being resilient in a radial direction. Smooth portions 3 and 4 are provided to facilitate insertion of the ring. The bearings may be retained in their housings by similar rings (see Group XXXIV).
Patent GB-190046-A (GB)
Title: Improved apparatus for washing roots, such as potatoes, carrots and the like
IPC: A23N12/02
Filed: 1922-01-21
Abstract: 190,046. Cole, C. Jan. 21, 1922. Washing roots.-A portable machine for washing roots such as potatoes, carrots and the like, comprises a root-holding cradle n provided with arcuate racks o which engage straight racks p on the platform b and power-driven means for rocking the cradle on the racks p. The cradle n, engine e, pumps u &c. are mounted on a platform b resting on a rectangular frame a which is provided with detachable wheels, and a screw jack z permits the wheels to be removed and the platform lowered to the ground. A wheel g on the engine shaft gears with a wheel h loosely mounted on a platform b resting on a rectangular frame a which is provided with detachable wheels; and a screw jack z permits the wheels to be removed and the platform lowered to the ground. A wheel g on the engine shaft gears with a wheel h loosely mounted on a countershaft i and connected therewith by a clutch of the contracting band type operated by a lever m. The pump u is connected to any convenient supply and is driven by an eccentric on the shaft i, a portion of the water being used to cool the engine before passing to a tank from which it is delivered to the cradle n. The cradle n is provided with a door n<1> and is perforated or has an outlet pipe and is operated by a connecting-rod s and a crank pin t' which may be accommodated at various radial distances on the crank web t. Guides q for the pins r keep in gear the racks o, p which are provided with side strips to prevent the weight of the cradle from being taken by the racks. Flexible pipe connections are provided where necessary.
Patent GB-380337-A (GB)
Title: Improvements in internal combustion oil engines
IPC: F02B21/00
Filed: 1932-01-21
Abstract: 380,337. Oil engines. LANG, F., 41, Laimerstrasse, Munich, Germany. Jan. 21, 1932, No. 1886. [Class 7 (iii).] In an internal-combustion engine of the Diesel type having a main combustion chamber d, Fig. 1, with a fuel nozzle e and an air pocket f opening thereinto on opposite sides, a baffle g, in a plane perpendicular to the axis of the cylinder, extends from the air pocket side towards the nozzle side and partly separates the combustion chamber from the piston-swept space in the cylinder a. The inlet valve k opens into and the exhaust valve may open out of the combustion chamber d, which is offset with respect to the axis of the cylinder, and communicates therewith by a channel h, a flange m on the piston preventing fuel oil from reaching the cylinder wall. The lip of the baffle g is oblique to promote turbulence and direct air and injected fuel into the pocket f during the compression stroke and the mixture flows out of the pocket during the expansion stroke to meet the fuel then being injected, the axes of the air pocket and the nozzle being in a single plane perpendicular to the axis of the cylinder. In a modified form, the combustion chamber is substantially 8-shaped with the nozzle and the air pocket at its indented portions. The mouth of the pocket f is set back and the baffle constitutes a ledge extending on both sides thereof about half way around the chamber with its lip conforming to the outline thereof, the baffle forming a portion of the wall of a duct directing air into the pocket during compression.
Patent GB-955753-A (GB)
Title: Improvements relating to polyepoxide resins
IPC: C07F5/00
Filed: 1962-01-18
Abstract: A curable composition comprises a polyepoxide and 2-35% of its weight of a borazole curing agent of formula: <FORM:0955753/C3/1> wherein X's which may be the same or different are H, Cl, or Br, alkyl, aryl, alkaryl, alkoxy, phenoxy, alkyl phenoxy, primary or secondary alkylamine, primary or secondary arylamine, or quinoline-d -oxy-, and R = H, alkyl, aryl, or alkaryl.  When the X's on all arylamino, the R's are covalent bonds attached to the aryl substituent at the position ortho to the amino group.  The compositions may include conventional additives.  Examples describe the curing of various mixtures of the ester of 2-methyl-4, 5-epoxy-1-hydroxymethyl cyclohexane and 2-methyl-4, 5-epoxy cyclohexan-1-carboxylic acid, a glycidyl ether of bis-phenol A, or an epoxidized polybutadiene on the one hand, and, on the other hand-b -trichloroborazole, hexamethyl borazole, b -tris-(methylamino) borazole, N-tri-n-octyl borazole, b -tribromoborazole, b -tris-(2, 6-di-tert-butylphenoxy) borazole, b -triisopropoxy-N-triphenyl borazole, b -triphenoxy-N-trimethyl borazole, b -triethyl-N-trimethyl borazole, b -triphenyl-N-trimethyl borazole, b -tris (p-tolyl)-N-tripropyl borazole, b -tris (dimethylamino)-N-triethyl borazole, and 5H, 12H, 19H-tris (benzo 1, 3, 2-diazaborolo) borazole.  Other suitable borazole curing agents are mentioned by name.
Patent GB-489338-A (GB)
Title: Improvements relating to the production of polar adsorbents
IPC: B01J39/16
Filed: 1937-01-22
Abstract: A method of producing a material possessing the property of polar adsorption consists in heating to a temperature of from 160 to 200 DEG  C., acid-extractible constituents of mineral oil fractions to which sufficient additional sulphuric acid has been added that under these conditions of heating, the mixture sets to a coherent gelatinous mass.  The material can be used for water softening, purification of trade effluents, recovering vapours from gaseous mixtures, and as a substitute for kieselguhr for the retention of liquids mechanically as in the manufacture of dynamite and the preparation of catalysts.  The gelatinous mass is preferably dehydrated before use by drying in hot air at a temperature of about 110 DEG  C.  The product either in gel form or after dehydration may be converted into a sodium or calcium derivative by contact with a solution of a feeble alkali such as bicarbonate of soda. Specification 489,027 is referred to.ALSO:A method of producing a material possessing the property of polar adsorption which may serve as a vehicle for the adsorption of horticultural poisons as described in Specification 489,027, consists in heating to a temperature of from 160 to 200 DEG  C., acid-extractible constituents of mineral oil fractions to which sufficient additional sulphuric acid has been added that under these conditions of heating, the mixture sets to a coherent gelatinous mass.ALSO:A method of producing a material possessing the property of polar adsorption consists in heating to a temperature of from 160 to 200 DEG  C., acid-extractible constituents of mineral oil fractions to which sufficient additional sulphuric acid has been added that under these conditions of heating, the mixture sets to a coherent gelatinous mass.  The material can be used for water-softening, purification of trade effluents, recovering vapours from gaseous mixtures, and as a substitute for kieselguhr for the retention of liquids mechanically in the manufacture of dynamite and the preparation of catalysts.  The material may also serve as a vehicle for the adsorption of horticultural poisons as described in Specification 489,027.  The gelatinous mass is preferably dehydrated before use by drying in hot air at a temperature of about 110 DEG  C. The product either in gel form or after dehydration may be converted into a sodium or calcium derivative by contact with a solution of a feeble alkali such as bicarbonate of soda.