baber/WOPTO huggingface dataset:
Patent GB-569132-A (GB)
Title: Improvements in or relating to internal combustion engines of the opposed piston type
IPC: F02B37/10
Filed: 1943-03-08
Abstract: 569,132. Opposed piston engines. SULZER FRERES SOC. ANON. March 8, 1943, No. 3708. Convention date, Feb. 14, 1942. [Class 7 (ii)] An internal - combustion engine of the opposed-piston type has two crank-shafts 1, 2 with a turbo compressor 11 at one end of the engine connected by bevel gearing to the crank-shaft 1 on the same side of the engine as the inlet ports 5 and from which the power is taken through the coupling 9, the compressor shaft being also connected to an exhaust gas turbine 17 disposed to permit the use of a short exhaust pipe 15. Outlet ports 6 lead exhaust gases into pipe 15. The crank-shafts are connected by gearing located in the casing 7. Air from the compressor is delivered to the ports 5 through the pipe 14. The runner 19 of the turbine is coupled by shaft 20 to the runner 12 of the compressor. The crank-shaft 1 is connected through a shaft 25 serving as a torsion spring to a flexible coupling 24 driving a hollow shaft 23 carrying a bevel gear 21 driving a bevel gear 22 connected through spur gearing 26, 28 and torsion-spring shaft 29 to the runner 12. At high engine loads the exhaust gas turbine may produce more power than is absorbed by the compressor, the surplus being transferred through the shaft 29 to the crank-shaft 1 to increase the power available.
Patent GB-489974-A (GB)
Title: Process for the manufacture of addition products of 3.4-dehydrocyclotetramethylene sulphone
IPC: C07D333/48
Filed: 1937-02-08
Abstract: 3 : 4-Dehydrocyclotetramethylene sulphone is treated in an alkaline medium with water, hydrogen sulphide, ammonia, or derivatives thereof in which a part of the hydrogen is replaced by an organic radicle; sodium salts of hydrogen sulphide may also be used.  An additive reaction occurs, and substitution products of cyclotetramethylene sulphone are obtained.  When water or hydrogen sulphide is taken, the primary addition product (3-hydroxy- or 3-mercapto-cyclotetramethylene sulphone) may undergo further condensation to yield a product in which two residues of cyclotetramethylene sulphone are linked by an atom of oxygen or sulphur.  Examples are given of the manufacture of products from 3 : 4-dehydrocyclotetramethylene sulphone and (1) water, (2) methyl alcohol, ethyl alcohol, propyl or isopropyl alcohol, butyl alcohols, isohexyl alcohol, benzyl alcohol, ethylene glycol and its monomethyl and monoethyl ethers, a mixture of 1 : 3-propylene glycol, glycerol and hexitol, and alcohols obtained by the catalytic hydrogenation of coconut oil, (3) phenol, (4) an alcohol mixture obtained from hydrogen and carbon monoxide, (5) sodium hydrosulphide, (6) thioglycollic acid, (7) ammonia, (8) methylamine, ethanolamine, piperidine and dodecylamine.  Reference to the bromination of the sulphone is made in a discussion of the process.  Additional reagents mentioned in the Provisional Specification are heptyl alcohols, octyl alcohols, n-dodecyl alcohol, n-tetradecyl alcohol, sorbitol and mannitol.  The Provisional Specification states also that the addition products with ammonia or amines may be purified by conversion into their salts with naphthalene-1 : 5-disulphonic acid.
Patent GB-100356-A (GB)
Title: Cross Bar for Roller Blinds.
Inventor: KEISER JAN
IPC: E06B9/78
Filed: 1916-03-15
Abstract: 100,356. Keiser, J. April 27, 1915, [Convention date]. Roller-blinds.-A crossbar c for keeping rollerblinds &c. stretched is provided at opposite sides with two grooves d, f for connecting the fringe and blind in a detachable manner to the bar, these grooves being narrower at the surface of the bar than at some distance inwards. The end b of the blind a is introduced into the groove d, passed round the other side g of bar, introduced into the other groove f, passed round the other side g of the bar, and finally introduced a second time into the groove d, where it is secured detachably by a rod m. A third groove n, in which the end b of the blind is first placed, is provided to ensure that the blind shall be at right-angles to the bar. A strip of blind h having the fringe i is secured in the bottom groove f by a rod k having a rib l,
Patent GB-1453637-A (GB)
Title: Pressure vessel and bladder for dividing the interior thereof
IPC: F15B1/20
Filed: 1974-01-28
Abstract: 1453637 Hydraulic accumulators GREER HYDRAULICS Inc 28 Jan 1974 03908/74 Heading F1D In a hydraulic accumulator, Fig. 2, the bladder 23 has a valve 54, Fig. 3, which is moulded into the bladder and has the shape illustrated. The material of the bladder is continuous over the top of the valve as shown at 65. Grooves 71 permit the slow passage of liquid when the valve 54 is on its seat S.
Patent GB-211504-A (GB)
Title: Improvements in and relating to presses for the manufacture of bricks, tiles, slabs and similar products
IPC: B30B1/04
Filed: 1924-02-15
Abstract: 211,504. Navet, R. Feb. 19, 1923, [Convention date]. Stationary-mould machines.-Relates to brick &c. presses in which pressure is applied through a pivoted beam 1 actuated by a hand-lever 2 and consists in the provision of means between the parts 1, 2 whereby the effort is reduced during the transition from pull to thrust by the operator on the lever 2. As shown, a lever 3 integral with the hand-lever 2 carries a roller 4 engaging a cam member 5 having a " dwell " portion 7. Alternatively, the lever 3 may be replaced by a pair of short levers adapted to come into operation successively.
Patent GB-1031413-A (GB)
Title: Improvements relating to the casting of building structures
IPC: E02D27/01
Filed: 1963-01-31
Abstract: 1,031,413. Shuttering for casting walls. BYGGFORBATTRING A.B. Jan. 31, 1963 [Feb. 2, 1962; June 20, 1962], No. 4030/63. Heading E1S. A vertically sliding shuttering 1 for casting walls 5 is covered with a sheet of rubber 2 attached to the leading end of the shuttering by bolts 6. Stretching of the rubber helps to counteract adhesion between the shuttering and the concrete. The shuttering may also have a lining of inelastic material 3 e.g. plastics running off rollers 4 at the leading end. The other end of the rubber is secured by bolts 7 to the trailing end of the shuttering and the other end of the material 3 is fixed against the wall at 8. The shuttering is adapted to be raised by a yolk 9 and climbing jack 12. The bottom of the shuttering may be forced inwards against the wall by screw or hydraulic jacks Fig. 5 (not shown).
Patent GB-813469-A (GB)
Title: Jet exhaust nozzles
IPC: F02K1/42
Filed: 1957-02-06
Abstract: 813,469. Jet propelled aircraft. UNITED AIRCRAFT CORPORATION. Feb. 5, 1957 [Feb. 15, 1956], No. 4058/57. Class 4. [Also in Group XXVI] A jet exhaust nozzle comprises an annular casing 12 with a plurality of openings 18 and a sleeve 20 surrounding the casing and containing two sets of passageways, one set 24 adapted to discharge in a substantially downstream direction and the other set 50 in a substantially upstream direction, the casing and sleeve being relatively movable to change the registration between the openings and passageways, Figs. 1 and 3 show the sleeve rotatable about the nozzle axis between two operative positions by a ring gear 40 meshing with a pinion 42 driven by an electric motor 44. In normal use the nozzle has a rear opening 14 unobstructed by a bullet 10 which is moved to an upstream position by a jack 32. The sleeve 20 is then rotated to a position where the openings 18 are blanked off. For noise reduction e.g. during take-off or landing of an aircraft, the position of Fig. 1 is adopted. For thrust reversal, the position of Fig. 3 is used.
Patent GB-1427470-A (GB)
Title: Metering device
IPC: C02F1/68
Filed: 1974-01-29
Abstract: 1427470 Fluid metering device POLYPUR FORSALJNINGS AB 29 Jan 1974 04108/74 Heading B8N A metering device 7 for charging a predetermined quantity of fluid to a container comprises a housing 8, 9 having two opposed walls with aligned openings 10, 11, an elongate slide 12 reciprocable in the openings, holes or recesses 13, 14 formed in the slide 12 and arranged at such a distance apart that when the slide is activated to take one of two limit positions one of the holes is moved from the interior of the housing, which is arranged to be at least partially filled with fluid, to a position externally of the housing to discharge a volume of fluid received by the hole while in the housing, while the other hole is moved from a position externally of the housing to the interior thereof. As described the device 7 forms part of a water purification system. The housing 8 is connected via a pipe 19 to a container 20 for an aqueous solution of aluminium sulphate and has a ventilating nozzle 21. The slide 12 has sealing rings 15, 16, 17 and is connected at its ends to a member 22 with a projection 23. Water to be purified is fed by a pipe 5 to one of two V-section channels of a scoop 2 and when this channel is full the scoop tips about a shaft 3 to discharge water into a container 1 while the other scoop channel is filled. Bushings 25, 24 on a rod 26 connected to the scoop 2 engage the projection 23 to cause discharge of a measured quantity of fluid from the device 7 into the empty channel of the scoop 2 as the latter tilts.
Patent GB-1403974-A (GB)
Title: Azopurine derivative
IPC: C07D519/00
Filed: 1974-01-29
Abstract: 1403974 8,8<SP>1</SP>-Dioxo-6,6<SP>1</SP>-azopurine dye RESEARCH CORP 29 Jan 1974 [16 Feb 1973 26 Nov 1973] 04135/74 Heading C4P [Also in Division C2] The novel title compound of Formula I is inter alia a dye which is prepared by reacting adenine in aqueous solution under acidic conditions, the concentration of adenine being at least 1 mg/ml, with potassium permanganate in the presence of potassium bromide, adding hydrogen peroxide in an amount sufficient to remove the purple colour of the potassium permanganate and to produce an orange precipitate, and recovering the precipitate. The compound is used to dye cotton by a mordant process.
Patent GB-1487136-A (GB)
Title: Workpiece orienting device for a machine tool
IPC: B24B41/00
Filed: 1975-01-30
Abstract: 1487136 Grinding; machine tool details LANDIS TOOL CO 30 Jan 1975 [1 Feb 1974] 4184/75 Headings B3D and B3B A device for orienting a workpiece W1 having eccentric portions 40, such as cams, or pistons having elliptical contours, comprises means 10 for supporting a randomly oriented workpiece, a pair of work centres 26, 28, and means 32, 34 for forcefully engaging a supported workpiece with the centres. Orienting means 42 is located to be radially aligned with the eccentric portion and displaced from a retracted position by means 46 to an advanced position so as to be struck by the eccentric portion of the rotating workpiece at a predetermined location. Means 48 sense when the orienting means 42 can be advanced without abutting the eccentric portion and actuates the advancing means, and means maintains the orienting means at the advanced position whereby rotation of the workpiece will be halted when the eccentric portion engages the orienting means. As described, the workpieces W consist of shafts having cams 40 which are to be ground on a machine 12 and are loaded into a shoot 10 having a pair of spaced rails. The workpiece are sequentially located against a stop 14 and single workpieces are released by escapement members 16 connected by a linkage 18 to an hydraulic cylinder 19 so as to be advanced to a station 20 having stops 22, 24, a spring steel strip 38 acting to guide the advancing workpiece to the station. At the station, centres 26, 28 are advanced by cylinders 36, 38 to engage the workpiece and centre 26 is rotated by a continuously operating rotary hydraulic motor 32 to slowly rotate the workpiece. During rotation, the eccentric portion 40 engages the lever 48 of a limit switch 50 which, when operated twice is detected by a counter, actuates an hydraulic motor 46 to pivot the orienting finger 42 so that a bearing surface 44 is in the path of the eccentric portion 40. When the portion engages the bearing surface, the rotation of the workpiece is prevented and the workpiece is in the desired angular location. After an interval determined by a timer started by the counter, the finger 42 and centres 26, 28 are simultaneously retracted and a loader arm 31 is advanced to grip the workpiece and carry it to the grinding station 58.
Patent GB-433054-A (GB)
Title: Improvements in energy-storing means, particularly for brakes
IPC: B60T13/04
Filed: 1934-02-08
Abstract: 433,054. Linkwork. SCHAUMAN, K. 0., 45, Holborn Viaduct, London. Feb. 8, 1934, No. 4217. [Class 80 (iii)] [See also Group XXXIV] Two pivotally-connected members adapted to operate two relatively-movable elements, for example, brake elements, are normally locked together against the action of a spring tending to separate them by means of a detent pivotally mounted on one member and engaging the other member, the detent being retractable and the spring released to separate the members by means of an articulated link. As shown, a brake pedal 11 is mounted on a lever 14 connected by a second lever 13 with the brake lever 12. Normally the levers 13, 14 are held together as shown on Fig. 1 against the action of a spring 19 by means of a detent 23 pivoted at 24 on the lever 14 and engaging a projection 22 on the lever 13, the detent being locked by toggle levers 25, 26 pivoted at their opposite ends 27, 29 respectively to the detent and lever 14 and held rigidly in alignment by a pivoted latch 30 manually controlled by a cable 33. In operation, during the first part of the upward movement of the latch a spring 34 breaks the toggle and subsequent movement of the latch positively moves the toggle pivot 32 causing the detent to release the projection, when the spring 19 separates the levers 13, 14 and applies the brakes. During the operation a lever 37 pivoted at 36 to the lever 14 is depressed by the disengagement of a projection 38 on the lever 37 from a notch 39 formed in a collar 40 integral with the pivot 16 and actuates a wire 41 in order, for example, to operate a switch &c. for stopping the engine or cutting off the fuel supply. Instead of the toggle pivots 27, 32, 29 being in alignment in the normal position, the pivot 32 may be offset and may co-operate with a cam-stop which when rotated shifts the pivot through and beyond the dead-centre position to retract the detent. A metal cover normally closes the parts of the mechanism mounted on the lever 14. Specification 405,687, [Group XXXIV], is referred to.
Patent GB-765390-A (GB)
Title: Improvements in or relating to the operation of shaft furnaces
IPC: C01B32/942
Filed: 1955-02-14
Abstract: 765,390. Shaft furnaces. BADISCHE ANILIN- & SODA-FABRIK AKT.-GES. Feb. 14, 1955 [Feb. 16, 1954], No. 4270/55. Class 51(2). In the operation of a shaft furnace using an oxygen or oxygen-enriched blast, the blast nozzles and the lower part of the shaft are protected by a layer of loose material of poor thermal conductivity, e.g. granular coke or carbon black. The invention is shown applied to a shaft furnace 1, the lower part of which is lined with ceramic material 3 and carbon bricks 4, through which extend the blast nozzles 7. The space 6 between the bricks 4 and an inner metal lining 5 is filled with loose or lightly tamped granular coke. During operation the metal lining 5 melts, and a semi-solid wall is formed at the surface of the loose material defining a part-conical hearth, Fig. 2 (not shown). In a modification, Fig. 3 (not shown), the lining 5 forms an extension of the upper part of the furnace shaft.
Patent GB-707625-A (GB)
Title: Reflex action testing means
IPC: A61B5/11
Filed: 1952-02-18
Abstract: 707,625. Reflex testing apparatus. TORRICELLI CREATIONS, Inc. Feb. 18, 1952 [April 5, 1951; June 29, 1951; July 11, 1951], No. 4302/52. Class 81(2) An appliance for testing and measuring the magnitude of reflex actions comprises a support carrying a flexibly mounted striking device and a means for indicating the extent of the limb movement. In Fig. 1 a stand 31, attached to a chair 35, has leg rests 36, 37, adjustable for height by pedals 45, 48, and an arm 62 carrying an indicating means 32- This comprises levers 73 with limb-engaging members 76 geared to individual pointers 82. A striking gun 39 is carried on a semi-rigid support 38. The gun may comprise a plunger 86 which is drawn back against a spring to a predetermined extent and then released by a trigger 89 so that a head 95 strikes the desired nerve centre. In other forms of gun the striking head is separate and is itself struck by the spring-actuated plunger, so that it may be positioned against the limb before the blow is applied. Modifications of the measuring device are described with reference to Figs. 8, 13 and 34 (not shown). Specification 687,644 is referred to.
Patent GB-791447-A (GB)
Title: Folding chair
IPC: A47C4/24
Filed: 1956-02-13
Abstract: 791,447. Folding seats. HEYWOODWAKEFIELD CO. Feb. 13, 1956 [May 18, 1955], No. 4376/56. Class 52(2) When a folding seat of the type shown is being unfolded, rear links 28, pivoted to the back frame, telescope into the tubular rear legs 22 until they abut stops formed by the pivots 24 between the rear legs and the seat proper 20.
Patent GB-589704-A (GB)
Title: Improvements in and relating to agricultural instruments
IPC: A01C7/08
Filed: 1945-02-21
Abstract: 589,704. Sowing beans. PARKER, H. S. Feb. 21, 1945, No. 4412. [Class 6 (i)] A bean drill consists of a framework pivotally mounted on an axle 1 supported on wheels 2. The frame consists of bars 13 extending backwards and supporting a hopper 10 which is held also by a chain 11 suspended from book 9 on lever 18. This latter is pivoted about an upstanding member 5 supported by struts 6, 7. The frame 13 is supported by a bracket 16 adjustably attached to the lug 15 on a collar 14 round the axle 1. The hopper 10 feeds seedtubes 12 which penetrate to any desired depth. The feeding mechanism is driven by a chain and sprocket through disengageable gearing and can be observed from the driver's seat at the front. The tubes may be lifted by the operation of handle 18 fixed in any desired position on member 19.
Patent GB-511157-A (GB)
Title: Process for the manufacture of beryllium oxide
IPC: C01F3/00
Filed: 1938-02-11
Abstract: 511,157. Extracting beryllium ores. SERI HOLDING SOC. ANON. Feb. 11, 1938, No. 4413. Convention date, Feb. 12, 1937. [Class 1 (iii)] A cyclic process for the extraction of beryllium oxide from a beryllium ore consists in treating the ore in pulverulent condition at a low temperature with a stoichiometric quantity of liquid or dissolved hydrofluoric acid in the presence of a small quantity of an acid alkali fluoride, say about 5 per cent. by weight of the ore, converting the resulting beryllium fluoride into beryllium hydroxide by double decomposition, and decomposing the hydroxide by heat, the fluoride resulting from the double decomposition being treated by an acid to produce hydrofluoric acid for re-use. The beryllium fluoride may be converted into the hydroxide by sodium hydroxide which may be added as such or generated in situ by electrolysis. the cathode compartment of a cell like a Castner- Kellner cell being filled with the solution of beryllium fluoride aid the anode compartment with a solution of sodium chloride. Sodium fluoride recovered by evaporation is decomposed with sulphuric acid, and the hydrofluoric acid recovered by crystallization of sodium bisulphate. Specification 423,543 is referred to. The Specification as open to inspection under Sect. 91 comprises also the decomposition of the ore by an acid fluoride, the sodium beryllium fluoride, say, so obtained being decomposed by sodium hydroxide in the manners disclosed above. The sodium fluoride produced is decomposed by nitric acid, sodium acid fluoride for re-use being then recovered by crystallization. This subject-matter does not appear in the Specification as accepted.
Patent GB-573840-A (GB)
Title: Improvements in and relating to thermoplastic compositions
IPC: C08L27/02
Filed: 1942-05-07
Abstract: A thermoplastic composition comprises one or more vinyl halide polymers, and chlorinated paraffin wax with or without one or more plasticizers, the polymer comprising 70-99.5 per cent of the composition, the plasticizer comprising not more than 12.5 per cent, the wax comprising not less than 0.5 per cent and in the absence of plasticizer not more than 5 per cent and the plasticizer/wax ratio being never greater than 10 and never less than any positive value of the expression (2.28-0.024N), where N is the percentage of polymer in the composition.  The ingredients used are those described in Specification 573,841.
Patent GB-1210216-A (GB)
Title: Improvements relating to rotary variable resistors
Inventor: LETCH GEORGE REGINALD
IPC: H01C10/32
Filed: 1967-01-30
Abstract: 1,210,216. Variable resistors. PLESSEY CO. Ltd. 26 Jan., 1968 [30 Jan., 1967], No. 4518/67. Heading H1S. In a variable resistor, a brush 7 mounted on a structure 9, 12 is moved over an arcuate resistive track 1 by rotation of a spindle 22 coupled to structure 9, 12 by a member 26 at the end of spindle 22 in such a manner that the pressure of brush 7 on track 1 is unaffected by axial motion of spindle 22. Track 1 comprises carbon moulded in thermosetting plastics. Brush 7 and a brush 10, of carbon, are carried on a Be-Cu spring strip 9. Alternatively brush 7 may be rectangular with triangularly disposed regions mounted in a recess in a mounting structure, a helical spring being provided between brush 7 and track 1. The coupling between member 27 and structure 9, 12 comprises lugs 27, 28 co-operating with channels 16, 17 in the wall of member 12. Sealing rings 23-25 are provided, and the open end of a casing 18 may be sealed with a thermosetting resin.
Patent GB-1096393-A (GB)
Title: Improvements in or relating to means for opening containers
IPC: B65D17/34
Filed: 1966-02-02
Abstract: 1,096,393. Opening containers. CONTINENTAL CAN CO. Inc. Feb. 2, 1966 [Feb. 19, 1965], No. 4623/66. Heading B8D. A can 10 provided with a removable end panel 16 defined by a score line 15 is opened by means of a pull tab 17 riveted to the panel 16, the tab body 19 having a C-shaped cut partially surrounding the rivet so that on pulling a tab handle, in the form of a ring 28, the tab body 19 pivots and forces a curved forward end 23 of the tab to rupture the score line 15. The ring 28 is itself hinged to the tab body 19 by means of an integral strap 32 weakened by a central aperture 33. The ring 28 has an offset portion 31 opposite the hinge enabling it to be raised. The tab body is either held by a rivet integral with the end panel 16 or is welded to the panel 16, and is strengthened by a peripheral rib 21 omitted at the end 23.
Patent GB-1076141-A (GB)
Title: A method of electrolytically forming or finishing toothed gears and like multi-toothed shapes
Inventor: BATEMAN WILLIAM HENRY
IPC: B23H3/04
Filed: 1964-02-04
Abstract: Toothed gears and like multi-toothed shapes are formed or finished by electrolytic machining by imparting relative axial movement to a workpiece and an electrode having an operative surface which tapers in the direction of movement and is formed with teeth the depth of which varies from a maximum at one end of the electrode to a minimum at the other, electrolyte being caused to flow between the workpiece and electrode and D.C. being passed between them during the axial movement.  The width of the teeth on the electrode may also decrease from one end to the other and both the depth and width of the teeth may be zero at one end.  The method may be applied to forming internally or externally toothed helical gears of cylindrical or truncated cone form, and by varying the rate of axial movement during the machining crowned or barrelled gears may be produced.