baber/WOPTO huggingface dataset:
Patent GB-1281471-A (GB)
Title: Improvements in or relating to fluid pressure braking systems
Inventor: WIMBUSH MAURICE JOHN
IPC: B60T8/18
Filed: 1970-02-19
Abstract: 1281471 Load-responsive fluid brakes AUTOMOTIVE PRODUCTS CO Ltd 19 April 1971 [19 Feb 1970] 8024/70 Heading F2F In a dual circuit load-responsive braking system having a pump 16 charging accumulators 18, 19 from a reservoir 17 and including a loadresponsive valve 24 controlling braking pressure the valve 24 has passages through which fluid pressure in the respective circuits is transmitted to the brakes, said passages being controlled by separate closure devices 36, 39 urged to an open position by common spring 53 the loading of which is controlled by the loading of the vehicle, the pressure acting on the brakes opposes the said spring and the arrangement is such that the opposing force is the same whether one or both circuits are operative.
Patent GB-739517-A (GB)
Title: Improvements in foot-rests
IPC: B60N3/06
Filed: 1954-03-19
Abstract: 739,517. Foot-rests. AKTIESELSKAPET STROMMENS VAERKSTED. March 19, 1954 [Oct. 10, 1953], No. 8031/54. Class 52 (2). A foot-rest comprises a channel iron 1, adapted to be attached e.g. at the rear side of a chair, carrying two uprights 2 upon which are tiltably supported two arms 3, 4 with tubes or rods 5, 6 interconnecting these arms to constitute the foot-rest proper. A holder 7 is attached to the channel iron 1 for a pin 8 upon which is mounted a segment 9 having a partly cylindrical wedge-shaped portion 10. When the tube 5 is lifted, a torsion spring 11<SP>1</SP>, anchored by a hook 12 to the upright 2 and to the segment 9, urges the wedge-shaped body 10 under the arm 4 in an anti-clockwise direction about the pin 8. When the tube 5 is released, the foot-rest remains in its raised position. A friction disc 20 is pressed against the arm 3 by a spring 21 and a nut 22 to prevent the foot-rest being pushed upwards by the spring 11<SP>1</SP> when the foot-rest is not in use. A pin 15 attached to a lug 14 on the segment 9 passes through a slot 16 in a flat piece 17 of iron attached to a rod 18 supported for axial displacement. When a disc or knob 19 at the end of rod 18 is pressed, the displaced rod 18 causes the segment 9 to rotate in a clockwise manner about pin 8 against the action of the spring 11<SP>1</SP>, to lower the foot-rest.
Patent GB-1164052-A (GB)
Title: Cookers
Inventor: CUNNINGHAM JOHN
IPC: B60B33/06
Filed: 1967-02-21
Abstract: 1,164,052. Supports for cooking stoves. PARKINSON COWAN Ltd. 16 Feb., 1968 [21 Feb., 1967], No. 8081/67. Heading A4U. [Also in Division F4] A cooker includes a rear supporting plinth having wheels of the self-levelling kind at the two rear corners of the cooker and a front supporting plinth having feet of the self-levelling kind at the two front corners with a retractable wheel disposed centrally of the two said feet, means for lowering and retracting said front wheel being accessible through an opening in the lower part of the front face of the cooker. The front plinth 10, which is of U-shaped cross-section, includes a mounting assembly 19 for the retractable wheel 20, which wheel 20 is rotatable on a spindle journalled in bearing flanges depending from opposite sides of a wheel bracket 23, the wheel bracket, also of U-shaped crosssection, fitting within a housing 26 defining a guideway within which the bracket is vertically movable. The upper end of the housing 26 carries a nut 33, in screwthreaded engagement with a vertical capscrew 34 the lower end of which presses against the bracket 23, such that in use, with a cotter pin preventing inadvertent withdrawal of the capscrew for the nut 33, a wire loop 37 can rotate the capscrew 34 to lower or raise the wheel 20.
Patent GB-1374550-A (GB)
Title: Ship unloading apparatuses
Inventor: SIWERSSON O L
IPC: B65G67/60
Filed: 1973-02-19
Abstract: 1374550 Unloading apparatus SCASIAINVENTOR AB 19 Feb 1973 [24 Feb 1972] 8092/73 Heading B8E Apparatus for unloading a ships hold, silo or dump comprises two parallel vertical screw conveyers 1 a swingable horizontal conveyer 2 and a further longitudinally displaceable conveyer 3 all enclosed and dust sealed. The conveyer 2 may be of belt, scraper or screw type and the apparatus discharges to a conveyer 18 at a discharge station 16. The conveyers I can be swung about a pivotal connection 8 with the conveyer 2 by rams 9 and the apparatus is supported by a jib crane, Fig. 1 or hydraulic driving means while the conveyer 2 can pivot in a horizontal plane about a connection 13 with the conveyer 3 in turn supported by fastenings 15 on the crane. The connections allow movement from an inoperative position A to limit operative positions B-D, Fig. 1. As an alternative, Fig. 7, the conveyers can be supported for vertical movement by trestles 24 and can be swung like a pendulum by movement of a ring 22 by cross wires 21 operated by winches 25. The conveyers 1 have feed devices 4 to move material to them which may comprise rotary tearing means 17 in the form of pine 19. The conveyers 1 are rotated by an electric or hydraulic motor 6.
Patent GB-869009-A (GB)
Title: Pharmaceutical and veterinary compositions
IPC: A61K31/19
Filed: 1958-03-13
Abstract: Pharmaceutical and veterinary compositions in unit dosage form for oral or parenteral use comprise 0.1 to 10 mgms. of mellitic acid or its sodium salt and a pharmaceutical carrier.  Examples of dosage forms given are tablets, cachets, suppositories, injectable solutions and mixtures with animal feed-stuffs.
Patent GB-1449707-A (GB)
Title: Resicual toner removing apparatus
IPC: G03G21/00
Filed: 1974-02-22
Abstract: 1449707 Cleaning apparatus MINOLTA CAMERA KK 22 Feb 1974 [24 Feb 1973] 8149/74 Heading G2H Residual toner particles are removed from a photoreceptor surface I by a brush 3 which is so enclosed within an electrically conductive casing plate 4 and a restriction board 5, Fig. 1, that during high speed rotation it acts like a fan to force air into an inlet gap 6a and out of an outlet gap 6b while friction of the tips of the brush hairs 3 against the casing 4 charges the latter with the opposite polarity to the toner particles. The airstream carries the removed toner particles, dislodged from the brush 3 by a flicker bar 5, into a housing 7 where the heavier particles collect in a well B while lighter particles are attracted to the outer surface of the charged casing 4 and accumulate in catchment portions 4a, 4b. Optionally an external voltage supply 9 may supplement the charge induced on the casing 4 by the brush 3. In another embodiment, Fig. 3, an electrically conductive belt 13 is entrained to contact the outer surface of the casing 4 and is driven in a direction such that its return run travels in the direction opposite to the induced air-flow in the housing 7, toner particles attracted to it being removed by a wiper 14 and deposited in a box portion 15 of the housing. In this embodiment, the casing 4 need not be electrically conductive.
Patent GB-674387-A (GB)
Title: Method of oxidizing gaseous hydrocarbons
IPC: C07C27/10
Filed: 1950-03-31
Abstract: A feed comprising normally gaseous hydrocarbons above methane is passed at super-atmospheric pressure through a series of reactors, an oxygen-supplying gas is admixed with the feed prior to its entrance to each reactor, the gases entering the first reactor are heated to a temperature favouring partial oxidation of hydrocarbons, heat generated in each reactor except the last is removed from the gases while maintaining a temperature favouring partial oxidation until the gases have traversed all the reactors, and oxygenated products are condensed from the effluent of the last reactor only.  The amount of oxygen added prior to entry to each reactor is such that the reaction temperature will rise to not above 1000 DEG , preferably to 825-900 DEG  F., while the temperature of the gases entering each reactor is about 650-750 DEG  F.  The available oxygen added may vary from 1-20 per cent by volume of the reactive hydrocarbons depending on the amount of inert gas present.  Part of the gaseous products may be recycled or inert gas such as steam added.  Generally about 2-20 per cent of the feed to the first reactor is fresh feed gas.  Pressure is from 100 up to about 300 p.s.i. to yield aldehydes and alcohols such as methanol or up to 1000 p.s.i. and above where alcohols are desired.  Where the process is used to control the B.T.U. value of a natural gas, the pressure may be that required in the main.
Patent GB-400197-A (GB)
Title: Improvements in the preservation and storage of meat and meat products
IPC: A23B4/16
Filed: 1932-03-19
Abstract: 400,197. Preserving meat &c. BROOKS, J., MORAN, T., SMITH, E. C., and TOMKINS, R. G., Low Temperature Research Station, Downing Street, Cambridge. March 19, 1932, No. 8226. [Class 49.] Meat, meat products, and other animal materials are preserved by keeping in an atmosphere containing a proportion of oxygen to nitrogen as great as or in excess of that in the atmosphere and a proportion of carbon dioxide generally within 4-40 per cent and in no case greater than the proportion of oxygen present. If a relatively high proportion of carbon dioxide is used, the oxygen content may be increased to prevent discoloration. The humidity of the atmosphere may be reduced, giving a longer preservation, enabling a smaller amount of carbon dioxide to be used and, by increasing the dryness of the surface of the meat, reducing discoloration. The carbon dioxide may be supplied from cylinders of compressed gas or liquid or by vaporizing solid carbon dioxide which also serves for cooling, or the products of complete combustion of carbonaceous matter may bc employed. In one form, the storage chamber 1 has a carbon dioxide meter 2, and an oxygen meter 3 with a vessel 4 containing an absorbent for carbon dioxide through which a proportion of the atmosphere is drawn at a regulated rate by a pump 5 which also serves to circulate the atmosphere from the chamber through entry ducts 18, pipes 6, 20 and through ducts 19 back to the chamber. The meters 2, 3 have electrical connections 7, 8 to recorders which operate through relay valves 14, 16 to supply automatically carbon dioxide and oxygen to the chamber when necessary. A distant reading electrical resistance thermometer 21 and thermoelectric hygrometer 22 and cooling grids 23 through which brine is circulated are provided. In a modification, the oxygen meter and supply are omitted. Specification 172,673, [Class 49, Food &c.], is referred to.
Patent GB-144998-A (GB)
Title: Improved method for the extraction of caffein from coffee beans
IPC: A23F5/20
Filed: 1920-03-19
Abstract: In extracting caffeine from coffee beans, the steam used in opening the beans, and afterwards driving off the solvents, is prevented from condensing by heating the beans before they are brought into contact with the steam.
Patent GB-1514161-A (GB)
Title: Inductor device
IPC: H01F27/255
Filed: 1975-05-21
Abstract: 1514161 Inductors AJDOYLE 21 May 1975 [23 Feb 1974 26 June 1974] 8310/74 and 28265/74 Heading H1T An inductor has a pair of windings on magnetic core legs 1, 2 which are joined by yokes 3, 4 of smaller cross-section. The yokes and legs may be of the same or different ferrite material and may be held together by a spring clip 5, or by a plastic frame or encapsulation. A plastic spacer may be included to provide a non-magnetic gap in the core, and the core parts may be misaligned to increase the reluctance.
Patent GB-118860-A (GB)
Title: Improvements relating to Safety Spring Slings or Suspension Devices particularly adapted for use with Parachutes.
Inventor: CALTHROP EVERARD RICHARD
IPC: B64D17/36
Filed: 1917-06-12
Abstract: 118,860. Calthrop, E. R. June 12, 1917. Addition to 8649/15. Helical springs; india-rubber springs.-In parachute suspension ropes having a spring device interposed as described in the parent Specification, the rubber strands forming the spring device are twisted together in opposing spirals. Fig. 3 shows the spring device comprising two opposite spirals 3 of rubber strands a - - c arranged so that the outermcst strand a at the top is the innermost strand at the bottom, so that the strands are of equal length; the left-hand spiral is shown slightly untwisted at the ends. In a modification, Fig. 5, two series of strands are arranged in opposing spirals between metal caps 19.
Patent GB-1371261-A (GB)
Title: Electromagnetically-operated valves
IPC: H01F7/16
Filed: 1972-02-23
Abstract: 1371261 Valves RUNTAL HOLDING CO SA 23 Feb 1972 [27 Feb 1971] 8465/72 Heading F2V  In an electromagnetically-actuated valve, e.g. for controlling gas flow to a burner, the electromagnet 8 can be displaced along the valve spindle 13 by a rack-and-pinion 18, 23 driven by a reversible electric motor 21. Thus, initial opening movement of the valve member 14 caused by energizing the electromagnet 8, can be adjusted to a small value by displacement of the electromagnet. Moreover, after the initial opening and consequent attraction of armature 11 to the electromagnet, further opening of the member 14 can be effected by suitable displacement of the electromagnet. Closure is effected at any time by de-energizing the electromagnet. Electric control switches 31 for the motor are actuated by cams 24, and an electric limit switch 33 is actuated by valve spindle 13. The electromagnet and armature are housed in an oil-filled aluminium casing 1 having external cooling fins 36. A scale 26 indicates the position of the valve spindle. Lever 29 and rod 30 may actuate an air valve for the burner.
Patent GB-254379-A (GB)
Title: Improvements in or relating to steam-propelled vehicles
IPC: B61C1/00
Filed: 1925-03-31
Abstract: 254,379. Alley, S. E. March 31, 1925. Railway locomotives, steam.-A vertical boiler 15 and steam engine 16 are placed each on an overhanging end of the chassis. the water and fuel tanks being located between them. The wheel axles 11, 12 are close, together and each is driven by a chain from one end of the crank shaft 17. Both the engine and boiler are thus easily accessible. Specifications 213,988 and 213,993, [both in Class 80 (ii), Gearing, Variable speed &c.], are referred to.
Patent GB-884972-A (GB)
Title: Process for the preparation of aqueous emulsions having improved anti-foam properties
IPC: B01D19/04
Filed: 1960-03-11
Abstract: Aqueous siloxane emulsions, obtained by treating finely divided silica with a liquid methylpolysiloxane, grinding the treated silica with a siloxane oil having a ratio of R/Si between 1,9:1 and 2,1:1 and a viscosity between 10 and 10,000 cs. at 25 DEG  C., and heating the mixture to 100 DEG -250 DEG  C. and thereafter emulsifying the product in an aqueous medium (see Group IV(a)) are used as foam inhibitors in media such as fermentation liquors, concentrated sugar juices, liquids being distilled and particularly alkaline liquids such as detergent solutions used, e.g. in washing machines and bottle washing.ALSO:An aqueous siloxane emulsion is made by treating finely divided silica with a liquid methylpolysiloxane, grinding the treated silica with a siloxane oil having a ratio of R/Si between 1,9:1 and 2,1:1 and a viscosity between 10 and 10,000 cs. at 25 DEG  C., and heating the mixture to 100 DEG  to 250 DEG  C., and thereafter emulsifying the product obtained in an aqueous medium.  The silicas used preferably have a particle size of less than 50 mm. Emulsifying agents specified are esters of fatty acids and of polyalcohols.  In a typical example, dimethylpolysiloxane oil and combustion silica, which has been treated with octamethylcyclotetrasiloxane, is agitated in a ball mill for 6 hours, when the mill is emptied and the product is heated at 200 DEG  C. for 16 hours under a current of nitrogen and then allowed to cool.  The product is then emulsified with water in known manner Uses: as foam inhibitors (see Group III)
Patent GB-330902-A (GB)
Title: Improvements in or relating to a process for the low temperature distillation or carbonization of bituminous coal
IPC: C10B1/10
Filed: 1929-03-18
Abstract: 330,902. Abbott, A. V. March 18, 1929. Retorts.-In a rotary retort having internal and external heating members 9 adjacent to the inner and outer walls 7, 6 which form an annular distillation chamber 8, retarding ribs or baffles 40 are provided on the inner wall and lifting ribs or baffles 39 on the outer wall. The charge is fed by an alternately advancing and retarding movement through the distillation chamber, the material being simultaneously subjected to different degrees of distillation temperature from the outer wall while advancing, and from the inner wall during the retarding movement respectively. The retort is heated by burners 4 and the heat is absorbed by steel flasks 9 filled with lead or other low-melting non-ferrous metal, and housed within channel members 10 riveted to the casings 6, 11 and 7, 12 respectively. A cooling cone 35 is arranged within the gas outlet, and a tar collector 37 is drained by a pipe 38.
Patent GB-556199-A (GB)
Title: Improvements relating to gauges
IPC: G01B3/22
Filed: 1942-06-25
Abstract: 556,199. Linear-dimension gauges. BOLTON, E. June 25, 1942, No. 8715. [Class 106 (ii)] A linear-dimension gauge comprises a lever, adapted to be engaged with the work to be gauged and extending from one end of an elongated casing of the gauge and coacting with a second lever having an arcuate rack to engage a pinion by which an indicator can be moved over a partcylindrical scale at the other end of the casing. A lever 15 is formed of two parts 15a, 15b frictionally secured together by a screw and pivoted at 16. Movement of lever 15 in either direction from neutral position is transmitted by limbs 25 and pins 24 to displace lever 20 clockwise and actuate pinion 28 against the action of spiral spring 27, to move indicator 31 over a cylindrical scale 35, which may be angularly adjusted by knob 34. The casing may have a lug 37 or a tapped hole for the support of the gauge.
Patent GB-798364-A (GB)
Title: Edge filters
Inventor: DAVIS ALBERT HENRY
IPC: B01D46/40
Filed: 1956-03-20
Abstract: 798,364. Filters. ZWICKY, Ltd. March 6, 1957 [March 20, 1956], No. 8721/56. Class 46. Spoked rings 2, Fig. 5, having a tapered cross-section 1, Fig. 4, form with star-shaped spacers 4 a filter element which is rotated, for cleaning, in an anti-clockwise direction against fixed scraper blades 5, each having a tapered arcuate portion 8. The leading edge 9 of each blade is substantially inclined to the radius of the element to ensure outward movement of the removed dirt, and the portion 8 extends inwards beyond the unspoked portions of the rings.
Patent GB-1340458-A (GB)
Title: Hydrogenation of nitroaromatics
IPC: C07F9/02
Filed: 1972-02-25
Abstract: 1340458 Aromatic amines TEXACO DEVELOPMENT CORP 25 Feb 1972 [4 March 1971 27 Oct 1971] 8738/72 Heading C2C A process for the production of aromatic amines by reduction of the corresponding nitroaromatic compound using a homogeneous ligand-stabilized ruthenium or iron complex catalyst the donor atom of whose ligand is selected from Groups IVb, Vb and VIb of the Periodic Table comprises: (a) mixing the nitroaromatic compound with at least 0À0001 moles of at least one of the catalysts in an amount of oxidizer-free, nonaqueous inert solvent sufficient to solubilize the catalyst and the nitro-aromatic compound in a hydrogen atmosphere at a pressure of at least 100 p.s.i.g.; (b) maintaining the mixture under superatmospheric hydrogen pressure, at from 20 to 160‹ C. until the nitroaromatic compound is reduced to the corresponding amine; and (c) separating the aromatic amine.
Patent GB-571149-A (GB)
Title: Improvements in or relating to glass containers
IPC: A61J1/06
Filed: 1943-12-01
Abstract: 571,149. Ampoules. HORN, L. Dec. 1, 1943, No. 8793. [Class 81 (i)] A sealed glass vial or ampoule a, which may contain small quantities of petrol, is provided with two unweakened tapering stems, each stem being coated at b with a flexible substance to which the splinters adhere when the stem is broken at b<1> by the fingers. The coating may be formed by dipping each stem into a plastic mass of e.g. a cellulosic or sealing-wax like preparation, or by painting or spraying.
Patent GB-541155-A (GB)
Title: Improvements relating to the optical projection of images
IPC: G03B21/13
Filed: 1940-05-17
Abstract: 541,155. Optical-projection apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., and BOWEN, A. May 17, 1940, No. 8817. [Class 97 (i)] An illuminated surround for an opticallyprojected image is produced by means of two apertured reflectors 7, 8 between the film gate 3 of a projector and the projection lens 5, the reflector 7 being concave and adjacent the gate and the reflector 8 convex or slightly concave and adjacent the lens. Fringing rays of the light beam are reflected by the reflector 8 on to the reflector 7, and thence through the lens to the projection screen. The reflector 8 may be rectangular and have a rectangular aperture, and the reflector 7 may be annular; either of the reflectors may be of polished metal or silvered glass. Specification 532,814 is referred to.
Patent GB-1537357-A (GB)
Title: Internal combustion engine
IPC: F02B23/00
Filed: 1976-03-05
Abstract: 1537357 Casting composite cylinder heads FUJI HEAVY INDUSTRIES Ltd 5 March 1976 [14 March 1975] 8879/76 Heading B3F [Also in Divisions F1 and F2] Liners 11, 12 are encast in a cylinder head 1 adjacent the combustion chamber and exhaust passage walls. Each liner 11, 12 comprises steel plates between which a cavity containing air or other heat insulating material is located.
Patent GB-551716-A (GB)
Title: Alarm signalling over electric distributing networks
IPC: G08B27/00
Filed: 1941-07-16
Abstract: 551,716. Signalling over power circuits. DEHN, F. B. (Wells-Gardner & Co., and Gard-Well Co., Inc.). July 16. 1941, No. 8989. [Class 40 (i)] [Also in Group XXXVII] Alarm or periodic time signals which are sent over a power network by a predetermined change in the frequency of the supply are received by a magnet 26 energized by the supply and controlling a reed armature 25 which, when the frequency is changed, vibrates with sufficient amplitude to engage a contact 32 intermittently and connect the supply to a loudspeaker 18, which may be part of a wireless set. The armature 25 has an adjustable weight 36 at its free end and is formed with a tcngue 31 at its upper end for engaging the contact 32 which is adjustable by means of a screw 35. The armature is mounted so that it is slightly offset from the centre of the magnet 26.
Patent GB-495545-A (GB)
Title: Improvements in or relating to button hole sewing machines
IPC: D05B3/06
Filed: 1938-03-25
Abstract: 495,545. Sewing - machines. DURKOPPWERKE AKT.-GES. March 25, 1938, No. 9153. Convention date, Sept. 2, 1937. Drawings to Specification. [Class 112] In a button-hole sewing-machine of the kind having a fixed support for the stitchforming devices and a moving work-support, the work-support is made of light metal such as aluminium and provided with inserted members of harder material on the contact surfaces. The longitudinal motion of the work-support is derived from a cam acting on a pin fixed in the work-support and guided in the base of the machine, and the lateral movement from the same cam by means of an arm and a vertical rocking-shaft carrying a second arm which slidably engages the work-support.