baber/WOPTO huggingface dataset:
Patent GB-855139-A (GB)
Title: Respiratory gas flow regulators
IPC: A62B9/02
Filed: 1958-05-21
Abstract: 855,139. Respiratory appliances. BENDIX CORPORATION, [formerly BENDIX AVIATION CORPORATION]. May 21, 1958 [June 27, 1957], No. 16367/58. Class 81(2) [Also in Group XXIX] An inhalation-demand-responsive respiratory gas flow regulator comprises a gas supply passageway 14, terminating in a supply outlet 18, through which the flow of gas is regulated by a valve, such as a balanced lift valve 25, operated by pressure variations at the outlet. The operating means includes a pressure chamber 60 connected via passage 61 to the outlet, a pressure responsive diaphragm 45 in the wall of the chamber and valve actuating means comprising a spring biased lever 51, pivoted at 54, operated by the diaphragm for opening the valve when the chamber pressure is reduced and closing the valve when the chamber pressure is increased. The operating means is characterized by means for amplifying pressure changes in the pressure chamber in accordance with pressure changes at the outlet, comprising a nozzle 62 which diverts the flow of gas in the passageway 14 into two jet streams 63, 64. On inhalation the jet 63 aspirates gas from the chamber 60 to open the valve, but on exhalation the aspirating stream is opposed and jet 64 causes a rapid build up of pressure in chamber 60. to close the valve.
Patent GB-1491653-A (GB)
Title: Swing axle assembly
IPC: B60G5/00
Filed: 1976-04-22
Abstract: 1491653 Vehicle suspension CLARK EQUIPMENT CO 22 April 1976 [23 May 1975] 16393/76 Heading B7D In an oscillating axle assembly for an industrial tractor, trunnions 36, 38 on the differential housing 18 of the axle 10 are journalled in bores 54 in support members 44, 46 by means of bearings which are lubricated by lubricant stored in the support members. Each support member 44, 46 is a hollow casting and has the cavity therein closed by plugs 82 to form a lubricant reservoir 80 provided with a filler plug 86, vent plug 88 and a drain plug 92. Passages 95, 96 in the wall of each bore 54 convey the lubricant from the reservoir 80 to a groove 56 extending around a bearing sleeve 52 which is fitted into the bore 54 to co-operate with a wear sleeve 58 on the associated trunnion 36, 38. A thrust plate 68 bolted to one trunnion 38 is disposed between thrust washers 64, 66 which are lubricated by lubricant which escapes from the reservoir 80 by way of the bearing sleeve 52 and fills a cavity 69 formed between the thrust plate and a cover-plate 76 bolted to the support member.
Patent GB-183102-A (GB)
Title: Improvements in or relating to switches of the quick make and break type
IPC: H01H21/42
Filed: 1921-04-02
Abstract: 183,102. Tucker, J. B. April 2, 1921. Switches, quickaction of the kind having a pivoted operating - member and a pivoted contact-member moving in the same direction in operation, a third pivoted member movable in the opposite direction, and a floating spring element between the third element and the operating-member are so constructed that the spring element forms a toggle arrangement with the third member. As shown, the operating lever a' is fixed to the cranked spindle b' upon which the contact-member c<1> is pivoted. The third member u is pivoted at v and has a slot u<1> by means of which it is driven by a pin a<3> on an extension of the handle-lever. A telescoping compression spring element w is pivoted between the member u and the contact-member so as to constitute a toggle linkage with the member u. In action, the toggle linkage is driven across the dead-centre, and the spring-element produces a quick action.
Patent GB-131778-A (GB)
Title: Improvements in Cogging and like Mills for Tyres.
Filed: 1918-10-10
Abstract: 131,778. Stewart & Co., D., and Holmes, T. E. Oct. 10, 1918. Rolling annular bodies. - A tyre-rolling mill with overhanging rolls R having their bearings B, O on opposite sides, has the upper roll bearings B, B vertically adjustable and connected by a parallel motion to keep the shaft A of the upper roll horizontal. Preferably the parallel motion comprises links F, levers D, E, and a link C. A hydraulic cylinder L and piston K applies pressure to the nearest bearing B to the upper roll, which is driven by a jointed shaft M. The shaft P of the lower roll is driven direct.
Patent GB-476608-A (GB)
Title: Improvements in or relating to the manufacture of urea-formaldehyde condensation products
IPC: C08G12/12
Filed: 1936-06-13
Abstract: Glass-clear urea-aldehyde condensation products are obtained by carrying out the first stage of the condensation of urea or a urea derivative with formaldehyde in the presence of a condensing agent consisting of a sulphite which does not give rise to insoluble products and carrying out the second stage under weakly acid conditions by addition to the reaction mixture of between 1,3 and 7,25 mols. of acid per 100 mols. of urea or urea derivative. Specified sulphites are those of sodium, potassium, calcium, barium, strontium and zinc, and they may be added in amounts between 0,8 and 4 per cent of the initial weight of urea or urea derivative.  Acetic acid is a suitable acid. Softening-agents, e.g. diethylene glycol, glycerol, &c., may be added at any time before or during the condensation and in amounts up to 25 per cent of the urea taken.  In examples I--III, urea, aqueous formaldehyde and sodium sulphite are boiled under reflux for 5 minutes, acidified with glacial acetic acid, boiled for a further 5 minutes, dehydrated under vacuum, and the viscous liquid then poured into moulds and allowed to gelatinize at 70--80 DEG  C. and maintained at this temperature until quite hard.  In example IV, urea, aqueous formaldehyde and sodium sulphite are heated and boiled under reflux for one minute and then allowed to cool slowly to room temperature to obtain a thick, white, paste-like mass which is filtered, washed with alcohol, dried, melted at 60 DEG C. and refluxed with acetic acid, with or without glycerol, and further worked up as before.
Patent GB-1218480-A (GB)
Title: Electric switch comprising a push-button as actuating member
IPC: H01H13/06
Filed: 1969-03-28
Abstract: 1,218,480. Electric switch casings; pushbuttons. MICROPRECISION ELECTRONICS S.A. 28 March, 1969 [29 March, 1968], No. 16566/69. Heading H1N. A push-button 3, Fig. 2, for an electric switch is sealed to the casing 1 by a flexible membrane 7 clamped at its aperture 8 between axially fitted members 4, 5 of the push-button and at its outer periphery by a ring 12. The recess 10 of the casing may have a frustoconical wall 11 to which the ring 12 is attached by ultra-sonic welding.
Patent GB-1216998-A (GB)
Title: Improvements in or relating to the production of hydrogen peroxide
Inventor: FLETCHER JOHN VINCENT
IPC: C01B15/013
Filed: 1968-04-05
Abstract: 1,216,998. Hydrogen peroxide extraction. PETROCARBON DEVELOPMENTS Ltd. 8 April, 1969 [5 April, 1968], No. 16578/68. Heading C1A. Hydrogen peroxide is transferred from one solvent to another by reacting first an organic H 2 O 2  solution with a solution of urea to give a precipitate of a 1 : 1 adduct, mixing the adduct with an extracting solvent selected from dialkyl ketones with up to a total of 7 carbon atoms, alkyl esters with up to a total of 7 carbon atoms and alkyl (C 1 -C 4 ) ortho-phosphates, whereby the hydrogen peroxide is dissolved in the extracting solvent and the urea is precipitated, the process being carried out in the absence of heavy metal ions and under conditions minimizing decomposition. The concentration of H 2 O 2  in the first solvent is preferably 1-25% by weight, the urea solution should preferably be saturated and aqueous, and the preferred extracting solvents are acetone, n-propyl acetate, or ethyl acetate. The first H 2 O 2  solution is preferably formed by the oxidation of a secondary C 3 -C 6  alcohol (for example isopropyl (alcohol) with oxygen or a free-oxygen containing gas at an elevated temperature, in the absence of heavy metal ions at a pressure sufficient to maintain the alcohol and the reaction products in the liquid phase, the ketone produced being removed prior to the addition of the urea solution. In the examples a temperature of 105 C. was used for the initial reaction and 50 C. for the extraction.
Patent GB-462739-A (GB)
Title: Tightly closeable receptacle of paper and the like
IPC: B65D5/06
Filed: 1935-06-07
Abstract: 462,739. Paper &c. boxes. MAJER, C. June 7, 1935, No. 16611. Void. Convention date, June 8, 1934. [Class 18] A paper &c. receptacle adapted to be closed tightly is made from the blank showr which is folded to form a tube, end flaps 2 being turned inward! to fold about the lines shown dotted, thus pleating end flaps 5 after which end flaps 21 are turned in, so that flaps 3<1> lie beneatl them. The labyrinth-like closure ensures tightness. If paraffined sheet is employed the ends may be heated to give an airtight joint. The ends may also be secured by glue or other means.
Patent GB-1481580-A (GB)
Title: Temperature differential fluid operated motor
IPC: F03G7/00
Filed: 1975-04-22
Abstract: 1481580 Fluid operated motors I SEIGEL 22 April 1975 [29 April 1974] 16639/75 Headings F1M and F1Q A temperature differential fluid operated motor comprises at least one relatively warm chamber 12 and at least one relatively cold chamber 18, a supply of liquid disposed in the chambers dividing the chambers into a vapour chamber portion and a liquid chamber portion, at least one of the chambers having a movable portion 13B, 19B adapted to be displaced from an initial position when the vapour pressure within the chamber reaches one predetermined limit, means 33 for returning the movable portion to its initial position when vapour pressure in the chamber reaches another predetermined limit, vapour connecting means 26 for placing the respective vapour portions of the cold and warm chambers into communication, vapour control means 27 for controlling the flow of vapour between the cold and warm chambers to create a periodic pressure differential between the chambers, the control means being operatively associated 28 with the movable portion 19B of one of the chambers, liquid connecting means 24 for placing the liquid portions of the respective cold and warm chambers into communication, liquid control means 25 for controlling flow of liquid between the chambers, means for obtaining a temperature differential between the chambers and a force transmission member 39 connected to the movable portion 19B for translating the movement of the moving portion into useful work. The liquid is preferably a low boiling point liquid, as shown, both the warm and cold chambers contain a movable portion and the means 33 for returning the movable portions to their initial position comprises a lever. With valves 32 opened water is withdrawn from a reservoir or tank 29 and drips on to a wick surface 21 of the cold or condenser chamber 18. The evaporation of the water from the wick surface effects cooling of the chamber 18 which results in a temperature differential between the chambers 12 and 18. In a modification, not shown, the motor is adapted to operate on a temperature differential occurring between an ambient atmosphere and ambient water. In another embodiment heating means is provided to impart heat to the liquid in the warm chamber. This may be an electrical heater or employ burning of combustible materials. In a further embodiment cold liquid or ice may be employed to cool the cold chamber.
Patent GB-168199-A (GB)
Title: Improvements in and connected with lifting magnets
IPC: H01F7/20
Filed: 1921-06-21
Abstract: 168,199. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). June- 21, 1921. Electromagnets.-A lifting magnet comprises a magnet frame 1, having an inner pole 2, an outer annular pole 3, a core 9, a coil unit 4 arranged in an annular recess formed between the poles, pole-shoes 6, 7 detachably secured to the poles, a coil shield 5 supporting and protecting the coil unit, and means independent of the pole-shoes for securing the coil shield to the frame. The coil shield is held against annular shoulders 12, 13 on the outer pole and the core respectively, by a split ring 17 sprung into an internal groove in the outer pole, and secured therein by a spacing-member 19 inserted between its ends, the spacing-member being itself secured by a wedge piece 20. The pole-shoes are secured by bolts 26, 24 passed through the poles. The magnet frame is provided with suspension lugs 34. Packing is inserted in a groove 31 and in grooves at the lower end of the core. The split ring is removed from its groove by screwing studs into the groove through tapped holes 30.
Patent GB-166039-A (GB)
Title: Improvements in and relating to heat accumulators with two heat accumulating substances of different boiling points
IPC: F01K1/10
Filed: 1920-06-22
Abstract: 166,039. Schmidt, W. June 22, 1920. Superheating by hot liquids.-A steam accumulator having two working substances of different boiling points is provided with means for super-charging with heat the substance of the higher boiling point. In the example shown, a water-tank accumulator A is enclosed in but insulated from an outer insulated tank B, which is filled with oil. Pipe-coils D extend through the oil and coils E through the water. In charging, superheated steam is passed through the coils D and finally discharged through holes b in a pipe F into the water in the tanks A. Supercharging is then begun and superheated steam on its way to a point of utilization is passed through the upper coils D until the whole oil content is highly heated. Furnace gases may be used for this purpose or a part of the charging steam may be returned and re-circulated through the superheater. In discharging, steam passes from the inner tank A through the collecting pipe G and is superheated in traversing the upper coils D immersed in the hot oil. The output of steam may be increased by circulating oil from the lower parts of the tank B through the coils E by the pump R. The insulation of the outer tank comprises a vacuum space e with plates V separated by non-conducting material W to minimize radiation.
Patent GB-316381-A (GB)
Title: Improvements relating to elastic fluid turbines
IPC: F01D25/32
Filed: 1928-06-11
Abstract: 316,381. Baumann, K., and Associated Electrical Industries, Ltd. June 11, 1928. Condensation w a t e r, collecting and draining; blades.-Relates to turbines in which the blades are formed as described in Specification 27272/03, with internal passages 27 which are open to the concave surfaces of the blades so that condensation water passes into them. As shown in Fig. 2, the drainage passages 3<1> in the upper portion of the stationary blade ring communicate with a duct 4 in the inner blade ring whereas the passages in the lower portion communicate with a duct 5 in the outer blade ring. The ducts 4, 5 are connected by passages in blades in the regions 13, and the water drains by gravity to, an outlet 6 from which it is led to a feed water heater or other apparatus. Several ways of forming the ducts 4, 5 are described. In Fig. 6, the drainage duct 17 is formed between two stationary guide rings, and the water thrown out of the passages in the running blades is thrown into it through a slot 22. A renewable corrosion preventing ring 23 may be fitted. The blades may be formed of separate parts as shown in Fig. 9, or may be formed of sheet metal bent to shape.
Patent GB-810964-A (GB)
Title: Improvements relating to blow-pipe burners or torches
IPC: F23D14/34
Filed: 1956-06-01
Abstract: 810,964. Blowpipe burners. RAINSFORD & LYNES Ltd., and LYNES, R. K. Aug. 30, 1957 [June 1, 1956], No. 16931/56. Class 75(1) A blow-pipe torch comprises a main tube 3 having a screw thread for the burner base 6 of the ignition tube 4 at one end, a housing 5 incorporating a needle valve 12 and a nozzle 5c for connection to a gas supply hose at the other end and a handle 17 formed by a helical coil of wire concentric with the tube 3. The handle is held between the housing 5 and a collar 3c on the tube 3. A nipple 7 may be fitted into the end of the tube 3 where this enters the burner base. 6. Alternatively the nipple may be supported on a partition inside the burner base, the tube 3 being screwed on to the latter at the rear of the partition, a gauze filter being enclosed in the intervening space. Specification 707,650 is referred to.
Patent GB-318941-A (GB)
Title: Improvements in apparatus for elevating acids and other liquids
Filed: 1928-06-12
Abstract: 318,941. Exley, W. H. June 12, 1928. Direct air-pressure apparatus, automatic; valves for pressure fluid, arrangement of. - Apparatus for raising acids &c. comprises two chambers 1, 2, provided with inlet valves 3, 4 and delivery pipe 9, 10 for the liquid. Compressed air &c. is admitted alternately to the two chambers from a pipe 16 by a valve 18, which, in one position, connects one chamber to the air pipe 16 by a pipe 12 or 13, and the other chamber to atmosphere or other source of low pressure through slots 21 or 22 in the valve stem 19, 20. The pipes 9, 10, 11 may open into a valve chamber containing a throw over valve. The valve 18 may be operated mechanically.
Patent GB-1006669-A (GB)
Title: Improvements in or relating to tooth brushes
IPC: A46B9/04
Filed: 1962-05-03
Abstract: 1,006,669. Toothbrushes. H. MAKOWSKY. July 26, 1963 [May 3, 1962], No. 16967/62. Heading A4K. A toothbrush has a resilient curved bristle-plate 2 mounted on a handle 1 so as to be movable to extend longitudinally of the handle or transversely thereto, the bristles 3 being on the concave surface of plate 2.
Patent GB-232458-A (GB)
Title: Improvements in or relating to means for transferring pit tubs, wagons and the like into colliery lift cages or into predetermined positions
IPC: B66B19/00
Filed: 1924-07-15
Abstract: 232,458. Brightside Foundry & Engineering Co., Ltd., and Hewitt, B. W. July 15, 1924. Vehicles, marshalling and handling.-In means for feeding tubs into pit cages or other predetermined positions, of the type in which the tub is pushed by vehicle-engaging members reciprocated by a hydraulic ram located between the track rails, the vehicle-engaging member is pivoted to the ram and mounted on wheels or rollers to ride up an inclined track into a vehicle-engaging position during its forward movement so that a vehicle can pass freely over the mechanism when being run into the zone of its operation, means also being provided for automatically reversing the mechanism when the impelled tub has reached the cage. The ram c working in the cylinder a carries a shaft j at its forward end on which the vehicle-engaging members k are pivoted. The members k are supported on four rollers, two comparatively wide rollers on the ends of the shaft j and two narrower forward rollers n. These rollers run on a supplementary channeliron track with an inclined partially-interrupted portion r down which only the forward rollers n can pass. In the normal inoperative position shown in full lines, trucks can be run in from the left-hand side of the Figure and pass freely over the apparatus. On manipulating the hand.lever h to regulate the valve mechanism f, the piston is advanced and the rollers n ride up on to the main run of the supplementary track, thus elevating the members k into the truck-engaging position shown in dotted lines. A stop t prevents the members from rising too far. At the end of the forward stroke the ram trips the lever i and reverses the valve mechanism to restore the apparatus to its inoperative position.
Patent GB-110822-A (GB)
Title: Improvements in Candle Holders.
Inventor: PAYNE GEORGE ARTHUR
IPC: F21V35/00
Filed: 1916-11-28
Abstract: 110,822. Payne, G. A., and Payne, E. Nov. 28, 1916. Candle-holders.-The candle 10 is supported on a plate &c. 4 adapted to fit upon but not enter the socket 9 and carried by a stem 6 formed by the connected lower ends of spring prongs 1, 2, 3 with inwardly turned upper ends 8, which pass through radial slots in the plate and are adapted, when the device is pushed into the socket, to be pressed together to grip the candle.
Patent GB-221770-A (GB)
Title: Improvements in metallic compositions
IPC: C22C9/00
Filed: 1924-07-16
Abstract: 221,770. Western Electric Co., Ltd., (Western Electric Co., Inc.). July 16, 1924. Contacts.-Grid wires for use with phosphorbronze contact-members used in automatictelephone impulse-sending apparatus, are made of an alloy of 10-50 per cent of silver, 1.5-5 per cent of tin, and 45-88 per cent of copper, a preferred composition being 15 per cent of silver, 2-4 per cent of tin, and 81-83 per cent of copper.
Patent GB-561032-A (GB)
Title: Improvements in and relating to fastener devices for containers and the like
IPC: B65D45/28
Filed: 1942-12-01
Abstract: 561,032. Box &c. fastenings. UNITEDCARR FASTENER CORPORATION. Dec. 1, 1942, No. 17072. Convention date, Dec. 16, 1941. [Class 44] An automatic catch for lids of boxes, cases &c. comprises a spring tongue 5 secured to the lid 4 by a screw 7, the end of the plate having a tongue bent over rearwardly to provide a shoulder 9 adapted to snap into engagement with an abutment shoulder 22 formed on the co-operating keeper which is secured to the box body 2 by an integral spike 11 at the lower end driven into the front wall of the box and an integral tongue 15 at the upper end overlying the upper edge of the body 2 and with a terminal spike 16 driven into the upper surface. The keeper has a groove 18 in which the tongue 5 lies flush when fastened, the groove having flared side walls 24 at the upper end to guide tongue 5 into place, and a cam surface 23 forming the bottom of the upper part of the groove and over which the tongue end 8 rides till the shoulder 9 engages shoulder 22.
Patent GB-804589-A (GB)
Title: Improvements in or relating to iris diaphragms
IPC: G03B9/08
Filed: 1956-06-04
Abstract: 804,589. Iris diaphragms. DECKEL, H., and DECKEL, F. W. June 4, 1956 [June 16, 1955], No. 17223/56. Class 97(1) In an iris diaphragm having overlapping sets of blades, the blades of each set have the same pivotal axes as do the blades of any other set. Preferably, each group of co-pivoted blades are actuated by a single cam slot. As shown, two sets one of five blades 14 and one of five blades 16 are pivoted at 18 to a stationary member and controlled by guide pins 22 and 28 respectively, sliding in slots 24 in adjusting ring 26. Pivot pins on blades 14 extend through holes in blades 16 and the latter blades cover the gaps left at the rear edges of blades 14.
Patent GB-868434-A (GB)
Title: Improvements in or relating to milling cutters
Inventor: CONNOR GEORGE ROBERT
IPC: B23C5/22
Filed: 1959-05-21
Abstract: 868,434. Milling-cutters. ENGLISH STEEL CORPORATION Ltd. March 10, 1960 [May 21, 1959], No. 17260/59. Class 83 (3). A face milling-cutter comprises a frustoconical body 10, Figs. 2-4, secured to a spindle 11 and driven by keys 14, the body having peripheral rectangular slots 17 into each of which is secured a rectangular cutter-blade 18. The slots are cut at an angle to the body to form a negative-rake, and open into the operative face 16 of the cutter. Each blade is secured to the bottom and side of its slot by an L-shaped clamp 19, and a spring-urged wedge 21, located in a notch 20 in the side of the slot. A spring 31, Fig. 4, urges the blade out of the slot when the wedge is released. Each blade is supported by the body at 24, 25 and by the outer end 19A of the clamp 19. In a modification for heavy-duty milling, the blades have a positive rake, and the body 40, Fig. 9, has an enlarged portion 55 to support the tipped blades, and has a groove 56 in advance of each blade to provide clearance, and to support the blade.