baber/WOPTO huggingface dataset:
Patent GB-267515-A (GB)
Title: Improvements in or relating to arc rupturing arrangements for electric switches
IPC: H01H9/44
Filed: 1927-03-08
Abstract: 267,515. Siemens Schuckertwerke Ges. March 13, 1926, [Convention date]. Magnetic blow-outs.- In order to confine the arc on separation of the contacts 11, 12 to the plane of movement of the contacts and prevent it reaching the insulating barriers 15, 16, plates of magnetic material 13, 14, Fig. 2, are mounted upon the contacts or near the contacts so as to be magnetized by proximity to the heavy current circuit of the switch. The arrangement shown in Fig. 2 may be located between the poles 20, 21, Fig. 4, of an electromagnet energized by the coil 22. The magnetic portions may extend forwards from one contact into proximity with the other contact or may be V-shaped so as to embrace the contacts and extend backwards in shaped form 24, as shown in Fig. 6, into engagement with the arc-horns 18, 19. In this arrangement the arc is confined within troughs between the plates 24 and is extended by the blow-out field along the arc-horns. The magnetic portions may be removably secured to the contacts.
Patent GB-1515635-A (GB)
Title: Dry rotary air pump or compressor
IPC: F04C29/00
Filed: 1976-02-18
Abstract: 1515635 Rotary positive-displacement fluidmachines NIPPON PISTON RING KK and TOYOTA JIDOSHA KK 18 Feb 1976 [26 Feb 1975(2)] 06475/76 Heading F1F In a "dry" compressor, or vacuum pump, which may be of the sliding-vane type, flexible and resilient sealing plates 31, 32 are held against the end-faces of the rotor 40 by pressure transmitted to recesses 21a, 22a from a working-fluid outlet port 12 by way of passages 10a, 21b, 22b, the plates being made of a composite material comprising by weight 10À0-75À0% carbon and/or graphite, 0À1-60À0% molybdenum disulphide, 1À0-20À0% fluorine resin e.g. P.T.F.E. and 25À0% heat-resistant synthetic resin other than fluorine resin e.g. polyimide resin or silicone resin, the elasticity coefficient of the material being greater than 200 kg/cm<SP>2</SP>. An annular spring 15 clamps a boss 32b of the sealing plate around a driving shaft 17. A housing 10 may have cooling fins (14), Fig. 1 (not shown).
Patent GB-210648-A (GB)
Title: Improvements in automatic machines
IPC: G07F13/06
Filed: 1923-03-07
Abstract: 210,648. Paola, C. di. March 7, 1923. No Patent granted (Sealing fee not paid). Cocoa, apparatus for making.-A coin-freed apparatus for the preparation and delivery of a hot drink of chocolate and milk comprises a steam boiler 1, Fig. 3, a milk tank 6, a reservoir 8 for ground cocoa, and a mixing chamber 10 provided with a discharge nozzle and closing valve 11. On insertion of a coin an electric motor 18 is started to cause a predetermined quantity of milk and cocoa to fall into the chamber 10, wherein they are mixed together, warmed by a spray of steam, and stirred by a rotary blade 16. The discharge cock 11 is then opened and the contents delivered' to a cup placed on a stand 17 beneath the chamber 10, the circuit of the motor being automatically broken as soon as the drink has been poured out. The motor causes a shaft 21 carrying cams 39, 40, 41 to make one revolution for each coin inserted. The cam 41 through a lever 25; rod 26, and lever 27 closes the cock 11 as soon as the motor is stopped. The cam 40 through a lever 24 controls a valve 13 in a pipe 53 leading to the milk tank, and the cam 39 controls a similar valve in the steam pipe. A flexible transmission 29 causes a continuous rotation of a shaft 30 carrying the stirring blade 16 and a second flexible transmission rendered operative for a predetermined time by a friction clutch controlled bv a cam on the shaft 21, rotates a. shaft 32 having a delivery disc 15 and stirring propellers 54 for the cocoa powder in the reservoir 8. A stationary adjustable knife 55, Fig. 6, scrapes the required quantity of powder off the disc 15. The boiler 1 is heated by an inner furnace 76 into which is introduced an electrical heating coil or a gas flame. Hot air rises along a chimney 77 to heat the milk in the tank 6.
Patent GB-256878-A (GB)
Title: Improvements in machines for folding wrappers around rectangular tablets
IPC: B65B11/42
Filed: 1926-03-10
Abstract: 256,878. Forgrove Machinery Co., Ltd., and Grover, F. March 10, 1926. Pocketing by wrapping-up.-Relates to machines for wrapping rectangular tablets, in which the tablet is pressed against a vertically disposed wrapper through a slot and into a pivoted gripper, thereby forming top and bottom folds, the gripper descends past a segmental folding plate which turns up the free end of the wrapper, and at the lower end of the travel of the gripper the partially wrapped article is thrust into a discharge channel in which the wrapping is completed. According to the invention, stationary end-tuckers are provided to form end tucks which are covered and locked by the subsequent folds. As shown, a web of wrapping material A, Fig. 2, passes downwards between feed rolls B and is severed by a knife C. A plunger F forces an article from a guide E through a slot D<1> carrying the wrapper with it into a gripper device on a pivoted arm H, then in position opposite the slot. Stationary end tuckers M, mounted at the rear of the slot, form end tucks as shown in Fig. 6. During the descent of the gripper to the position shown, the top folds are bent upwards by the tuckers M and the bottom folds are bent up over the end tucks by blades N. The upper folds receive a definite crease formed bv the inner faces of the blades N and the lower edge of the upper gripper jaw J. The wrapper is now in the form shown in Fig. 7, the outstanding portions A' projecting through slots N<1>. At the lower position of the gripper, an arm L forces an ejector rod K to the right and pushes the partially wrapped tablet from the gripper on to a delivery slide O<1>. During this movement, side plates (not shown) turn in the outstanding portions A<1> and top plates Q turn down the free end of the wrapper on to the top of the packet, producing the form shown in Fig. 8. The triangular tabs are folded down by inclines in the delivery slide, the completed packet being as shown in Fig. 9. A spring finger S prevents the packages from overriding and a curved guide T turns them through 180‹ and delivers them with the tabs underneath. Two or more wrappers may be applied simultaneously by the apparatus. The top plates Q of the delivery channel are secured to overturned portions P, Fig. 4, of the side plates and a flexible clasp R holds the side plates against the sides of the slide O<1> and the projecting tabs project through slots P<1> until folded down by inclines.
Patent GB-551652-A (GB)
Title: Improvements in and relating to the purification of gases containing hydrogen sulphide
IPC: C10K1/10
Filed: 1941-05-26
Abstract: 551,652. Gas purifying processes. HOLMES, & CO., W. C., COOPER, C., and HENSHAW, D. M. May 26, 1941, No. 6719. [Class 55 (ii)] A gas such as coal gas and containing hydrogen sulphide and carbon dioxide is washed with a dilute solution of ammonium hydroxide, the time of contact of the gas with the liquid being about 1 to 2 seconds so that hydrogen sulphide is selectively absorbed. The ammonia content of the washing liquor and the gas may be such that no ammonia is absorbed or, the ammonia content of the gas may be increased by reevaporating ammonia from the wash liquor back into the gas and some of this ammonia absorbed by the wash liquor in the process of removal of the hydrogen sulphide. Residual hydrogen sulphide can be removed by iron oxide purifiers. Hydrogen sulphide distilled from the liquor may be burned with limited air in a Claus kiln to form sulphur or with excess air to sulphur dioxide which is converted to ammonium bisulphite. The gas after cooling and tar removal is passed through a washer 1 of the bubble cap type in which the time of contact with the liquor is 1 to 2 seconds. The gas from which much of the H2S has been removed passes to a rotary scrubber 2 where the remaining ammonia is removed by water. The liquor from the washer 1 is treated in a dissociating still 3 where most of the H2S and CO2 are evolved. The vapours are condensed in a condenser 4 whereby the whole of the NH3 and part of the H2S is absorbed. The cooled condensate passes through a scrubber 5 in counter current to uncondensed gas to complete absorption of H2S. The liquor leaving the still 3 is strengthened in ammonia by treating in a still 6 the liquor from a tank 9, the H2S and CO2 being returned to the crude gas while the liquor passes to a lime still 7 where NH3 is evolved and fed to a condenser 8 together with the effluent from the still 3, yielding a solution of ammonia which is returned to the H2S washer. In a modification, the gas liquor from the scrubber may be sprayed into the hot gas at the inlet of the condensers.
Patent GB-785620-A (GB)
Title: Improvements relating to fluid pressure braking systems for road vehicles
IPC: B60T15/02
Filed: 1955-03-08
Abstract: 785,620. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., and SIMMONS, A. W. March 8, 1956 [March 8, 1955], No. 6743/55. Class 103 (1). In a fluid pressure braking system for road vehicles of the kind in which the brakes are operated by compressed air or vacuum under the control of a pedal operated control valve, an additional valve member is connected to the exhaust passage of the control valve to control communication between this passage and external atmosphere, the additional valve being normally open and arranged to be closed by the driver of the vehicle to close the exhaust passage and prevent release of the fluid pressure brakes when, for example, it is desired to increase the power of the hand brake when starting from rest on a steep hill so that both feet of the driver are free to operate the accelerator and clutch pedals of the vehicle. The additional valve member 13 is housed in a casing 1 in which is slidably mounted an adjustable operating rod 2 which may be coupled at its cross-head 4 to the handbrake lever so that when the latter is in its release position the parts of the valve occupy the position illustrated; the valve member 13 being held off the valve seat rib 11 against the action of spring 15 by the reduced end 12 of rod 2 to permit free communication between passage 9 leading to the exhaust port of pedal control valve (not shown) and passage 6 communication with external atmosphere. When hand brake lever is moved to a braking position the rod 2 is moved to withdraw reduced end 12 of rod 2 from engagement with valve member 13 to close communication between passages 9 and 6. Alternatively, the additional valve may be opened and closed by means other than the hand brake lever mounted, for example, on the dashboard of the vehicle.
Patent GB-304066-A (GB)
Title: Improvements in roll-screens for shop windows and the like
IPC: E06B9/18
Filed: 1928-03-03
Abstract: 304,066. Scholz, O., (trading as Schulz & Holdefeiss). March 3, 1928. Window guards. - Roller guards for shop windows of the kind in which horizontal bars are guided in the frame, are provided with links connecting the horizontal bars, said links having end lugs 4 engaging one bar and a pair of lugs 6 between which two lugs 4 of other bars are threaded. In a modification, the links are composed of pairs of flat members connected by brackets to form spaced lugs.
Patent GB-730499-A (GB)
Title: Improvements in or relating to pyrimidine compounds
Filed: 1952-06-09
Abstract: The invention comprises 2-amino- and 2-acetylamino - 4 - hydroxy - 5 - (41 - chlorophenyl)-6-ethylpyrimidine, and the manufacture thereof by condensing guanidine with ethyl 2 - (41 - chlorophenyl) - 3 - oxopentanoate in a reaction medium consisting of oleum of 15-40 per cent sulphur trioxide content, and, if desired, acetylating the amino group of the product.  In examples: (1) guanidine sulphate is condensed with ethyl 2-(41-chlorophenyl)-3-oxopentanoate in 20 per cent oleum; (2) guanidine carbonate is similarly condensed and the product is acetylated with acetic anhydride and pyridine. Specifications 730,472 and 730,539 are referred to.  Ethyl 2 - (41 - chlorophenyl) - 3 - oxopentanoate is prepared by controlled hydrolysis of the ethyl imidoester of 2-(41-chlorophenyl)-3-oxopentanoic acid, itself obtainable from the corresponding nitrile produced by condensing ethyl propionate with 4-chlorobenzyl cyanide.
Patent GB-525842-A (GB)
Title: Improvements relating to angularly-movable panels of vehicle windscreens
IPC: E05C17/28
Filed: 1939-03-02
Abstract: 525,842. Stays for hinged articles. AUSTER, Ltd., GARTY, S. A., and SMALL, W. W. March 2, 1939, No. 6771. [Class 65 (i)] A stay for a windscreen 1 comprises a bar 3 pivoted to the frame and to a bar 4 on the windscreen by means of a one-way clutch device sliding on 4, and adapted to permit 1 to open freely, but to prevent its return until the clutch is released by hand. The clutch may consist of a worm metallic sleeve extended by a spring 8 to grip the bar 4 and contracted by a manual device 10, 10a to release its grip on 4. In another form, it consists of a number of balls forced by a spring into a conical space between the round bar 4 and a collar surrounding it so that the balls grip the bar. A manual device releases their grip.
Patent GB-1521867-A (GB)
Title: Process for transfer printing acetate materials at elevated temperatures
IPC: D06P5/28
Filed: 1977-02-17
Abstract: 1521867 Transfer printing of acetate textile materials and films TOYO INK MFG CO Ltd 17 Feb 1977 [17 Feb 1976 6 July 1976] 06792/77 Heading D1B  Acetate textile materials or films are first treated with a nitrogen oxide gas inhibitor followed by heat transfer printing using disperse dyes preferably at 100 to 250C. The nitrogen oxide gas inhibitor may be applied in a hot water bath in amounts of ¢-200% by weight of the weight of the acetate material, optionally an oxidation inhibitor may be simultaneously applied in amounts of 0.01-3% by weight. High colour prints having good gas fading characteristics are obtained.
Patent GB-708819-A (GB)
Title: Improvements in or relating to hydraulic governors
IPC: G05D13/00
Filed: 1951-03-21
Abstract: 708,819. Fluid-pressure servomotor-control systems. SEBEM SOC. ANON. March 21, 1951 [March 28, 1950], No. 6817/51. Class 135 A hydraulic governor for a gas, steam, hydraulic &c. engine and of the kind comprising an engine-driven, positive-displacement, pump working in a circuit containing an orificed, spring- loaded, piston has adjustable means for varying during operation the size of the orifice and, in certain embodiments, means whereby the orifice is additionally adjusted in dependence upon the position of the' piston. As shown in Fig. 4, the engine driven pump 1 delivers to the lower side of the piston 6 which is loaded by a spring 7 and actuates a valve 10 controlling, e.g. the fuel supply to the engine. The effective size of the orifice 12 in the piston is adjusted by an axially movable, conical needle 14 which varies the effective diameter of a longitudinally split sleeve 15. In a modification, the needle is formed with two portions of different conicity and with a third, cylindrical, portion so that with the needle in or near its uppermost, i.e. low speed, position the area of the orifice increases as the piston ascends to give a low sensitivity to the governor. when the needle is in or near its lowermost, i.e. maximum speed, position the area of the orifice decreases as the piston ascends to provide a high sensitivity, and at intermediate positions the orifice remains of constant area. In a further modification, the orifice 12, Fig. 8, in the piston 6 is varied by rotary movement of a disc 23 apertured at 26. The disc 23 has two diametrically opposite depending projections 27 which engage a diametrically slotted block 29 angularly adjustable by a lever 31 connected to an accelerator of the governed engine. Connected to the lever 31 by a slotted member 43 engaged by a pin 40, which is adjustable along a lever 38, is a disc 34 having a diametrical slot 36 engaged by a radial pin 37 on the piston. The arrangement is such that at low speed settings of the disc 23, i.e. when the orifices 12, 26 overlap to a small extent only, the slot 36 is inclined to the axis of the piston so that as the latter ascends, it is given a helical movement such as to increase the opening afforded by 'the orifices 12, 26 to provide low sensitivity, whereas in the position of the disc 23 corresponding to maximum speed setting, the slot 36 is not inclined and the area afforded by the orifices 12, 26 does not vary with the position of the piston, thus giving maximum sensitivity. A passage 44 relieves pressure below the piston when the latter completely closes the valve 10, e.g. due to rapid movement of the lever 31 to close the passage 12, 26. Instead of operating a valve 10, the governor may, in the case of an internal combustion engine, control the fuel injection pump. Detailed description is given of a method of determining the dimensions &c. of the components of the governor.
Patent GB-181081-A (GB)
Title: Improvements in air regulators of incandescent gas burners
IPC: F23D14/12
Filed: 1921-03-02
Abstract: 181,081. Alexander, C. J. March 2, 1921. Incandescent gas burners.- A hit-and-miss air-regulator for incandescent gas and like burners is provided with inlets adapted to control a corresponding number of inlets in the mixing-chamber, the inlets in one of the parts co-operating with angled parts of the inlets in the other part for effecting a gradual cut-off. In one form, a sleeve c is provided with square or rectangular openings d to open or close gradually diamond-shaped holes a in the wall of a mixing-chamber b. Secondary air-inlet holes e in the sleeve c may be provided to register with corresponding holes f in the wall of the mixing-chamber when the main holes a are closed.
Patent GB-819755-A (GB)
Title: Preparation of improved petroleum resins
Inventor: MCLEAN DONALD HENRY
IPC: C08F240/00
Filed: 1957-03-01
Abstract: Petroleum resins are made by steam cracking a feedstock comprising a major proportion of a light virgin naphtha and a minor proportion of a hydroformate polymer, fractionating the products so formed to obtain a distillate fraction having a boiling range between 20 DEG and 240 DEG  C. and polymerizing this distillate fraction at a temperature between - 30 DEG  and 90 DEG  C. in the presence of a Friedel-Crafts polymerization catalyst.  The hydroformate polymer is the residue obtained from the distillation of the products obtained from a hydroforming process.  Specified catalysts are aluminium chloride and boron fluoride.
Patent GB-1211651-A (GB)
Title: Succinimido-substituted 1-hydroxy-2-naphthoamides and the use thereof in colour photographic materials
IPC: G03C7/34
Filed: 1969-02-07
Abstract: 1,211,651. Silver halide emulsions. KONISHIROKU PHOTO INDUSTRY CO. Ltd. Feb. 7, 1969 [Feb.7, 1968], No.6890/69. Heading G2C. [Also in Divisions C2 and C4] Light sensitive silver halide photographic emulsions comprise as cyan couplers, amides of the general formula wherein R 1  is hydrogen or a methyl group, R 2  is a C 8-20  aliphatic hydrocarbon group, n is 1-4, A is a divalent group m is 1 or 2 and X is hydrogen or halogen or an optionally substituted arylazo group. The emulsions are prepared by dissolving the coupler in a low-or high-boiling solvent, or a mixture thereof, adding the solution to aqueous gelatine, emulsifying the mixture and adding the product to a silver halide emulsion. These emulsions may contain the usual additives, e.g. chemical or optical sensitizers, antifoggants, stabilizers, stain inhibitors and coating aids, and are coated on to a film base or baryta paper in the usual manner. On development of photographic materials containing the couplers in which X is an arylazo group, cyan colour  negative images and orange-red or red colour positive images are obtained simultaneously. Examples 1-5 describe the preparation and development of photographic films containing the amide couplers.
Patent GB-540573-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: F16F15/073
Filed: 1940-04-17
Abstract: 540,573. Dynamo-electric machines. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. April 17, 1940, No. 6911. Convention date, April 18, 1939. [Class 35 ] The stator of a dynamo-electric machine is secured in a frame which is supported in an outer frame by means of resilient devices adapted to absorb radial oscillations but to be rigid against tangential oscillations. In the form shown the inner frame carrying rigidly the stator 6, consists of rings 9 and longitudinal members 8, 17, the members 17 being secured by bolts 18 to caps mounted on pairs of blade springs 11 on supports 12 secured to the outer frame of the machine by bolts 14 and stays 15. Bodily horizontal movement of the stator is checked by springs 20 secured to a longitudinal rib 23 in the movable inner frame and bars 21 forming a part of the outer fixed frame 1. The question of deformation of the stator by the rotating magnetic field is discussed, and it is shown that tangential oscillations due to this source practically vanish at a distance of one-third of the radius of the neutral axis of the stator considered as a beam from this axis. The springs therefore are attached at this radial distance. The armature is journalled in bearings which are independent of and separate from the inner frame.
Patent GB-364416-A (GB)
Title: Improvements in or relating to milk churns
IPC: A01J15/16
Filed: 1931-03-05
Abstract: 364,416. Milk churn lids. GABS, A. M. J., 44, Mariedalsvej, and AKTIESELSKABET FREDERIKSBERG METALVAREFABRIK, 10, Nitivej, both in Copenhagen. March 5, 1931, No. 6926. [Class 66.] A milk churn lid made from a light metal or alloy such as aluminium comprises an arched coverplate 5, which may be a pressing, having applied to the underside thereof, either directly or with packing intervening, a lower part formed from a single piece of sheet metal and consisting of a top portion 1 and a flange comprising substantially vertical walls 2, 3, disposed in close proximity to each other. The parts are secured together by interfolding the edges, the edge 7 of the cover plate in the construction shown being bent around the edge 6 of the lower part, and a circular rib 10 may be provided on the cover-plate to project into the space between the upper portions of the parts 2, 3. Air-release grooves 9 may be pressed in the outer face of the part 3.