baber/WOPTO huggingface dataset:
Patent GB-1488702-A (GB)
Title: Brake pressure control valves
IPC: B60T8/18
Filed: 1974-02-20
Abstract: 1488702 Brake proportioning valves GIRLING Ltd 11 Feb 1975 [20 Feb 1974] 7796/74 Heading F2F A limiting or proportioning valve assembly for use in a dual circuit braking system comprises first and second control valves having respective inlets 1A, 1B for connection to separate pressure sources and respective outlets 3A, 3B for connection to separate wheel brakes, the first valve having a connection with and in operation being subjected to the pressure of the second valve so that the characteristics of the first valve are modified in response to failure of the inlet pressure of the second valve. The assembly is also constructed so that failure of the inlet pressure of the first valve causes modification of the characteristics of the second valve. Between the inlet and outlet of each valve is a stationary seat 4A, 4B which co-operates with a valve head 5A, 5B forming an integral part of a plunger 6A, 6B having a piston head 7A, 7B working in a bore against a spring 8A, 8B, a second piston head 9A, 9B being slidably sealed in a bore 10A, 10B and a third piston head 11A, 11B working in a bore communicating with the inlet 1B, 1A respectively. If the pressure at inlet 1B is removed the hydraulic thrust is reduced and the pressure at 1A required to close the valve against spring 8A increased. In a modification Fig. 2 the bores 2A, 2B are side-by-side and the stem 6A or 6B of each valve instead of carrying a piston head has its outer end connected to a tension spring 8A, 8B which is stressed in accordance with the loading of the vehicle and acts in a sense to keep the valve open.
Patent GB-572578-A (GB)
Title: Improved process for the extraction of gold and other metals from gold bearing ores
IPC: C22B11/08
Filed: 1943-05-17
Abstract: 572,578. Extracting noble metals from ores. FAURIE, A. C. H. May 17, 1943, No. 7819. Drawings to Specification. [Classes 82 (i) and 82 (ii)] Gold and other noble metals are extracted from gold-bearing ores by treating the pulverized ore with a cyanide solution of the usual concentration to which has been added a proportion of mercuric salts, preferably 0.05 to 0.25 grams per litre of the cyanide solution. The salts used are the nitrate and chloride, either separately or together. When the ore is of the sulphide or refractory type, mercuric nitrate only is used and the crushed ore is mixed with about 5 per cent of lime. In this case, the original cyanide solution is made up with calcium cyanide only. The solution, after treating the ore, is passed through tanks in contact with copper plates on which the gold and mercury are deposited. These plates are preferably previously treated with mercury to provide an amalgamated copper surface. The mercury is recovered at intervals by stacking the plates edgewise on a trolley with a watercooled bottom and subjecting them to a temperature of about 300‹ C. for 10-30 minutes. The mercury collects on the cooled surface. The gold is stripped from the plates at longer intervals of, say, 1 month. When the original ore contains platinum and palladium, these remain in the solution after the removal of the gold, and are recovered by adding mercuric, cyanide or oxycyanide to the solution in the proportion of from 0.05-0.25 grams per litre, and passing the solution through zinc boxes of known type. Mercury, platinum and palladium are deposited on the zinc and may be separated by dissolving the zinc in dilute sulphuric acid and distilling off the mercury. The gold deposition tanks are arranged in parallel so that the process is not interrupted for the removal of mercury or gold from the plates of any one set of tanks.
Patent GB-249566-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: H05B7/152
Filed: 1926-03-23
Abstract: 249,566. British Thomson-Houston. Co., Ltd., (Assignees of Seede, J. A.). March 23, 1925, [Convention date]. Electrode furnaces. In a furnace 10 provided with co-operating vertically arranged electrodes 15, 16, the relative positions of which are automatically adjusted, the electrodes are enclosed in a refractory chamber 12 having a cover 13 and the charge is situated in the space between the chamber 12 and the walls of the furnace. The electrode 15 is operated' by automatic gear as described in Specification 179,595, and the position of the arc can be varied by means of a motor 47 controlled by a switch 52 and geared to the electrode 16. The chamber 12 may comprise a graphite or carbon cylinder cemented to the furnace. In producing sodium sulphide the chamber 12 is surrounded by charcoal 53. Raw material 54 charged thereon is melted and trickles down to the tap hole 11.
Patent GB-415828-A (GB)
Title: Improvements relating to the construction of adjustable-spanners, wrenches, clamps, pipe-cutters, pipe-grips and like tools
IPC: B21D53/40
Filed: 1933-03-17
Abstract: 415,828. Making hand tools. HUMPHRIS, F., Park House, Park Road, Parkstone, Dorset. March 17, 1933, No. 8081. [Class 83 (ii).] In the construction of adjustable spanners, clamps, pipe-cutters, pipe grips, and like tools, the shell or body part is made from seamless tubing of circular or oval section shaped by means of dies and mandrels so that the body B has a circular handle part and an oval part b to accommodate the shank of the sliding jaw and the shank of the fixed jaw which is fixed in a cut away part b<5>, the handle part being provided with one or more screw-threaded holes b<7> for screws retaining the rotatable adjustment device.
Patent GB-848192-A (GB)
Title: Improvements relating to apparatus for degasifying steel melts
IPC: C21C7/10
Filed: 1959-03-09
Abstract: 848,192. Electric furnaces. DORTMUNDHORDER HUTTENUNION A. G. March 9, 1959 [March 10, 1958], No. 8092/59. Class 39(3). The vacuum chamber 1 of an apparatus for the degasification of e.g. steel melts, provided with one or more pipes 9 extending into a ladle or container 19 for the melt, is pear-shaped, narrowing gradually from a broad base towards an arched roof 12 and has a heating device e.g. a carbon electrode 6 arranged in the upper part of the pear-shaped chamber. An auxiliary arch 18 may be arranged above the roof 12 of the vacuum chamber and inside a vacuum tight steel hood. In the embodiment shown, the chamber is loaded and discharged through the one pipe 9 by raising and lowering the ladle 19. In another modification, the chamber is loaded and discharged by providing two pipes extending from the vacuum chamber into the ladle and gas is introduced into one of the pipes to provide a continuous " lift " of the melt into the vacuum chamber.
Patent GB-211028-A (GB)
Title: Improvements in or relating to carding-engine tape condensers
IPC: D01G15/46
Filed: 1923-03-22
Abstract: 211,028. Sykes, C. E. March 22, 1923. Carding-engines.-The tapes of tape condensers are cleaned by flat or cylindrical brushes 4 extending across the full width of the grooved feed rollers 1, and, in the case of cylindrical brushes, driven in a direction contrary to that of the direction of the tapes by sprocket gearing from the dividing rollers 3.
Patent GB-1292910-A (GB)
Title: Method of rendering organic textile materials absorptive
IPC: D06M13/256
Filed: 1970-02-20
Abstract: 1292910 Rendering textile materials absorptive BADISCHE ANILIN- & SODA-FABRIK AG 20 Feb 1970 [22 Feb 1969] 8184/70 Heading D1P Textile materials are rendered absorptive and rewettable by treatment with one or more surphito betaines of the general formula where R<SP>1</SP> is a C 8-17  aliphatic hydrocarbon radical, R<SP>2</SP> and R<SP>3</SP> are alkyl radicals having up to 5 C atoms, A is -NH-  r -O-, X is a alkylene radical having up to 5 C atoms, and n is 0 or 1. Textile materials which may be treated are those containing organic fibres, e.g. cotton, regenerated cellulose, cellulose ester, polyamide., polyester, polyacrylonitrile, polyolefin, wool and silk. The sulphito betaines are preferably applied from aqueous solution by dipping padding or spraying so that the textile retains less than 1 % (preferably 0.005- 0.5%) of its dry weight of the substance applied. The treated textile may then be rinsed in water and dried.
Patent GB-1082066-A (GB)
Title: Securing of containers with self-adhesive tape
Inventor: CANDLER DENNIS JOHN
IPC: B31B1/90
Filed: 1963-11-26
Abstract: 1,082,066. Sealing containers with selfadhesive tape. TAPE DEVELOPMENT Ltd. Feb. 26, 1965 [Nov. 26, 1963; Jan. 20, 1964], Nos. 8252/65, 252/65 and 2730/67. Heading B8C. A length of tape having a tear-strip is severed by a profile cutter so shaped that portions of the tape are removed on either side of the tear-strip to leave a projecting tab and the tape then applied to a container (see Fig. 2). In one embodiment (Fig. 3) the tape 21, fed from a roll 20 is severed by suitable projections 31 on a swing arm 30. The tape is then applied by hand to the container 26 which is supported in a trough 25. In a second embodiment (Fig. 6, not shown) the swing arm (41) is connected to a horizontal plate (33), the height of which is adjustable for different sizes of container. To seal containers of non-circular section, a pin (38) normally preventing rotation of the plate (33) is removed so that a tape application roller (45) and a locating roller (46) may yield to follow the periphery of the container.
Patent GB-1472812-A (GB)
Title: Gear hobbing machines
IPC: B23F5/22
Filed: 1976-03-18
Abstract: 1472812 Gear hobbing machines CHARLES CHURCHILL Ltd 18 March 1976 [27 Feb 1975] 8303/75 Heading B3K In a gear hobbing machine means is provided to cause a predetermined axial displacement of the hob 13 at the end of each hobbing cycle to evenly distribute wear on the hob. In the embodiment described the axial displacement of the hob is effected by a stepping motor 17 through a worm and wheel 19, 20 which by way of a clutch 22, 24 actuates a nut 31 on a screwed shaft 28. Electronic means controls the motor 17 by applying a predetermined sequence of pulses thereto so as to effect corresponding actuation of the shaft 28 a subtractive counter being applied to the motor for counting the pulses and means for stopping the motor when the count in the counter is reduced to zero. The above action results in the even distribution of wear on the gear hob and hence the maintenance of accuracy in the finished gear.
Patent GB-852457-A (GB)
Title: Improvement in industrial furnaces
IPC: C21D1/74
Filed: 1959-03-11
Abstract: 852,457. Metal-heating furnaces. SQUIRE, L. E. March 11, 1959, No. 8347/59. Class 51(2). A furnace for brazing metallic components comprises a hearth 1 having a seal 7 with a bell chamber 3, an annular insulating chamber 14 containing spaced metallic screens 30, 32, and a bottom insulating chamber 13 with spaced metallic screens 18 and forming a support for a work-receiving platform 40 carrying heating elements 12. The hearth 1, chamber 14 and chamber 13 are respectively provided with valve-controlled pipes 8 and 9, 35, 36 and 37, and 20 and 21, which pipes may be connected to a vacuum pump or used to supply inert gas. A layer of insulating material may be disposed beyond the outermost metal screen in the insulating chambers 13 and 14. The screens may be made of aluminium, molybdenum or tungsten. The treated material may be cooled by circulating inert gas through the treatment chamber or by circulating air through the insulating chambers 13 and 14.
Patent GB-848626-A (GB)
Title: Improvements in or relating to the production of aniline
IPC: C07C209/36
Filed: 1959-03-11
Abstract: The invention comprises a process for the preparation of aniline by the continuous reduction of nitrobenzene with molecular hydrogen in the liquid phase, and in the presence of hydrogenation catalysts which is carried out in a plurality of series connected reaction vessels, the reaction mixture being cooled after it has been drawn off from each reaction vessel and before it is introduced into the next reaction vessel simultaneously with fresh reaction mixture.  An example is given using a Raney nickel catalyst.  The reaction mixture drawn off from each reaction vessel may be cooled to room temperature or even below.
Patent GB-896513-A (GB)
Title: Improvements in and relating to fuel control mechanisms for internal combustion engines
IPC: F02D1/10
Filed: 1961-03-08
Abstract: 896,513. Regulating. GENERAL MOTORS CORPORATION. March 8, 1961 [March 8, 1960], No. 8454/61. Class 7(6). Fuel control levers 88, Fig. 2, on each cylinder bank 16 of a V-engine are connected by links 63, 61, Fig. 3, to the opposite ends of a lever 55 pivoted at 57, which lever is actuated through a link 53 connected to a lever 44 pivoted at 43<SP>1</SP> on a governor-actuated lever 43 and adjusted by a manually controlled member 46. The lever 43 is attached to a shaft 35, Fig. 4, rotated by a centrifugal governor 29 driven from an extension 21 of an impeller shaft of a blower 13 mounted between the cylinder banks 16. The governor has low speed and high speed weights 27, 28, and is loaded by main and idling springs 74, 68, Fig. 3, acting upon a second arm 40 on the shaft 35. The member 46 setting the desired speed is adjusted from outside the governor casing 10 by a lever 48 and a second lever 77 operates a cut-off lever 80 to move the linkage to fuel cut-off position in which the pin 54, Fig. 3, engages a resilient adjustable stop 95. The control lever 88, Fig. 2, is secured to a shaft 89 carrying levers 90 secured to the control racks 93 of the fuel injection pumps.
Patent GB-415502-A (GB)
Title: A photo-mechanical method of reproducing photographic illustrations in natural colour by rotary (newspaper) printing
IPC: B41F5/18
Filed: 1933-03-21
Abstract: 415,502. Printing-machines. MOORE, W. G. B., 11, Haughton Terrace, Blyth, Northumberland. March 21, 1933, No. 8477. Addition to 365,155. [Class 100 (ii).] The rotary machine described in the parent Specification is modified by printing directly from the plate cylinders A instead of by the offset method, the web being led over the cylinder B which acts as an impression cylinder instead of an offset cylinder.
Patent GB-687406-A (GB)
Title: Improvements in or relating to draught excluders or edge trimming
IPC: B60J10/08
Filed: 1949-03-29
Abstract: 687,406. Buffers. DALZIEL., A. Y., McCLEAN, D., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 29, 1950 [March 29, 1949], No. 8501/49. Class 52(i) [Also in Groups X and XXV] A resilient or protective edge trimming for applying to the edges of furniture &c. comprises a strip 32 of rubber or other flexible, deformable material, preferably having an outer covering 35 of leather or the like, and a spring steel gripping element, or elements 33, for supporting the strip and engaging the edge 23 of the part to which the trimming is to be attached and having inwardly directed barbs 29.
Patent GB-816172-A (GB)
Title: Process for the recovery and purification of vitamin b concentrates
IPC: A61K31/44
Filed: 1956-03-19
Abstract: Vitamin B12 concentrates are prepared in a process in which an originating material containing protein complexes or protein degradation complexes such as, for example, nucleic acids derived from either animal products or vegetable products and contained in effluents, by-products or intermediate or end products of the foodstuffs, animal feeding stuffs or fermentation industries, is subjected to anaerobic fermentation; the resulting product being treated as set forth in the parent Specification, to produce a concentrate of vitamins of the B12 group. Specified starting materials are effluents from yeast factories and distilleries, waste products from breweries, waste dairy liquors, slaughter house effluents and waste products, effluents from the production of fish meal and waste fish products, effluents and waste products from preserving factories, effluents from the production of citric acid (including mycelium waste products), lactic acid, butanol, acetone and isopropanol by fermentation, effluents from the production of antibiotics including Mycels, effluents from the manufacture of starch from potatoes or grains, effluents from the manufacture of sugar and synthetically-prepared media.  Prior to fermentation the starting media may be enriched in protein by allowing yeast and other micro-organisms to grow therein.  Examples describe the manufacture of a Vitamin B12 concentrate from the effluent from a yeast factory, the mycelium obtained as a by-product in the preparation of penicillin and from molasses slops from the manufacture of alcohol. Specification 815,917 is referred to.
Patent GB-372488-A (GB)
Title: Improvements in and relating to suspension mechanism of selfpropelled vehicles
IPC: B62D61/12
Filed: 1931-03-20
Abstract: 372,488. Road vehicles. MORRIS COMMERCIAL CARS, Ltd., HAMILL, W. W., and JENKINS, W. H., Foundry Lane Works, Soho, Birmingham. March 20, 1931, No. 8557. [Class 108 (ii).] Lifting weight off springs.-In self-propelled vehicles having two rear axles only one of which is a driving axle, provision is made for supporting the non-driving axle clear of the road when the vehicle is lightly loaded, so as to apply the whole load to the other axle and thereby obtain sufficient adhesion for driving purposes. Each end of the non-driving axle may be engaged by a pivoted hook a, the two hooks being operated simultaneously from a cross shaft d. When engaging or disengaging the hooks, the wheels on the non-driving axle may be run up ramps. The usual inverted compensating springs on each side of the vehicle are then fixed at one end and in the middle and function as full cantilever springs on the driving axle. Steel cables, screw-and-nut mechanism, worm gearing or other mechanism may be used instead of the hooks.
Patent GB-291558-A (GB)
Title: Improvements in safety razors
IPC: B26B21/10
Filed: 1927-03-29
Abstract: 291,558. Bleloch, W. E. March 29, 1927. Razors, safety. - In safety razors of the kind described in Specifications 250,624 and 267,247 the inner end 11 of the slot 10 in which the movable clamping tongue 8 moves is bevelled and the tongue 8 is correspondingly inclined. The operating rod 13 is bent at 25 and 26, Fig. 3, so that. the tongue 8 can pass in and out of the slots in the holder and blade, the said slots being substantially the same width as the tongue. The blade shield 15 which flexes the blade 4 has a tail portion 20 forming a spring clip to engage with a pressedout flap 22 in the holder 1. The other end of the shield 15 is formed into a hook 16 to engage in a recess 17 in the holder, the corners 19 of the hook being bent so as to guide it accurately into position. Specification 291,559 also is referred to.
Patent GB-551173-A (GB)
Title: Improvements in and relating to power presses
IPC: F16P3/00
Filed: 1942-06-24
Abstract: 551,173. Mechanical presses ; machinery guards. WARD, Ltd., T. W., and WELBURY, S. G. June 24, 1942, No. 8675. [Class 87 (ii)] [Also in Group XXIV] The clutch 12, which is adapted to bring the flywheel 10 of a power press into driving engagement with the crankshaft 11 which operates the slide, is prevented from moving from the inoperative position shown by a spindle 18. The spindle is slidably and rotatably mounted in a boss 19 on the frame and has a laterally-projecting pin 23 which, when the spindle is in its inoperative position as shown, is accommodated in a recess 24 in the boss ; when the spindle is moved to the right, against the action of a spring 21, the pin moves out of the recess and the spindle can be turned by means of a handle 22, the pin being held against the face of the boss by the spring 21 and the right-hand end of the spindle abutting against the clutch. The brake is moved into its operative position by means of a foot-operated rod 15 and a bell-crank lever 14.
Patent GB-453870-A (GB)
Title: An improved device for cleaning the exterior surface of boiler, evaporator, condenser and like tubes
IPC: F28G1/08
Filed: 1935-03-20
Abstract: 453,870. Tube cleaners. SMITH, R. H., Rockview, Sandbank, Argyllshire. March 20, 1935, No. 8684. [Class 99 (ii)] A device, adapted to be reciprocated transversely through banks of boiler &c. tubes for breaking scale off the exterior surface of the tubes, comprises at least three hammerlike elements each of which is constituted by one or more rollers i rotatably mounted in a carrier f on the end of one of a number of spring blades d, d<1>, d<2>. The rollers are provided on their periphery with axial grooves defining ridges or teeth with straight or curved edges, and the spring blades, which are secured to a flat yoke a having a socket b for a removable handle, are splayed outwards in opposite directions so that the rollers are off-set with respect to each other. Radially-extending teeth i<2> may be provided on the end face or faces of the rollers.
Patent GB-684628-A (GB)
Title: Improvements in or relating to recording
IPC: G11B5/74
Filed: 1950-04-06
Abstract: 684,628. Sound recording apparatus. DICTAPHONE CORPORATION. April 6, 1950 [April 8, 1949], No. 8687/50. Drawings .to Specification. Class 40 (ii). In a recording apparatus employing an invisible sound track, such as a magnetic sound track, visual indication of the amount of recording thereon is effected by coating the recording medium with a blushed pressure-sensitive material which is impressed by a stylus carried by the transducer. Specification 670,246 is referred to.
Patent GB-413251-A (GB)
Title: Improvements in or relating to flat knitting machines
IPC: D04B7/04
Filed: 1934-03-20
Abstract: 413,251. Knitting - machines. DUBIED ET CIE, SOC. ANON., E., 1, Place du Port, NeuchÔtel, Switzerland. March 20, 1934, Nos. 8751, 8752, and 8753. Convention dates, March 25, 1933, July 25, 1933, and Sept. 8, 1933. [Class 74 (ii).] The machine slide-actuating member 1 of a flat-bed purl knitting-machine is traversed by a chain 3 which passes over a shoe 8. This shoe is adjustably mounted on a bell crank 4, pivoted at 5, the lower end of which carries a slidable bolt 9 and spring contact 10. During normal running a spring 6 holds the contact 10 away from a stud 13. When the driving chain meets with abnormal resistance, a circuit completed through the contacts 10, 13 puts a stopmotion in action. A stop 17 can be put in the path of the bolt 9 by a cam 16. When the slide is traversed outside a certain operative range and the stop 17 is in action, the contacts 10, 13 are opened out and the stop-motion prevented from acting. When the slide is outside the normal range of action the needles or jacks are hooked on to retaining bars which hold them securely in non-knitting position, while the needle latches are closed by special closer brushes.
Patent GB-566586-A (GB)
Title: Improvements in or relating to drying cabinets
IPC: D06F58/10
Filed: 1943-06-02
Abstract: 566,586. Hot closets. DAVIES, E. S., and BATTERSBY, T. C. June 2, 1943, No. 8875. [Class 34 (i)] A drying cabinet comprises a central chamber 1 provided with racks, rollers or shelves for articles, communicating on each side with a narrow compartment containing a heating means such as a gas burner 4. One such compartment 2 open at bottom and connected with chamber 1 at the top serves as an air heater. The other, 3, connected with chamber 1 at bottom and with the external air at the top, serves as an outlet flue to control the draught.