baber/WOPTO huggingface dataset:
Patent GB-923042-A (GB)
Title: Compressor
IPC: F04C29/00
Filed: 1961-06-21
Abstract: 923,042. Rotary compressors. F. ZIMMERN. June 21, 1961 [June 22, 1960; Nov. 18, 1960], No. 22507/61. Class 110 (2). An air compressor comprises a worm gear 1, Fig. 1, meshing with two pinions 7 and surrounded by a casing 4. Air enters at 3, is compressed between the stationary base-plate 14 and a pinion tooth, and exhausts through the outlet 11. Sealing strips 16 are provided on the crests of the teeth of the worm gear and are held in place by drops of solder 17. Alternatively the inner surface of the casing 4 may be coated with a solid lubricant, such as graphite. The pinions comprise segments 7a, 7b, 7c and 7d, Fig. 3, mounted eccentrically on shafts 18, the segments 7c, 7d being urged against the worm gear by a resilient sleeve 53. Lubricating oil is circulated through passages 20, 21 to outlets 21b, Fig. 2, and the meshing teeth are sealed, cooled and lubricated by water introduced into the inlet and collected in a sump or centrifuge into which the water and compressed air discharge (Fig. 7, not shown). Exhaust pressure forces the water through a cooler, back to the inlet. The flow of water may be varied to vary the compression ratio. Water may also be forced into a chamber at the inlet end of the worm gear, to balance the axial forces. The pinions may be coated with a synthetic material which can be lubricated by water, and the casing 4 may be jacketed by an outer casing 49, Fig. 3, for water cooling. In another embodiment (Fig. 4, not shown), the worm gear is cylindrical and each pinion is replaced by a chain carrying teeth meshing with the worm gear. Each chain passes over two sprockets, and a guiding ramp covers the chain to balance centrifugal force.
Patent GB-1489779-A (GB)
Title: Process of preparing a stable composition containing a compound of the prostaglandin e group
IPC: A61K31/557
Filed: 1974-10-28
Abstract: 1489779 Prostaglandins YAMANOUCHI PHARMACEUTICAL CO Ltd 28 Oct 1974 [2 Nov 1973 25 June 1974] 22568/77 Divided out of 1489778 Heading C2C [Also in Division A5] 3,16(R) - Dimethyl - 9 - oxo - 11α,15(S) - bis- (tetrahydropyran - 2 - yloxy) - 5 - cis, 13 - transprostadienoic acid is heated with acetic acid, water and tetrahydrofuran, and 11α,15(S)- dihydroxy - 3,16(R) - dimethyl - 9 - oxo - 5 - cis, 13 - trans - prostadienoic acid (3,16(R) - dimethyl - prostaglandin E 2 ), is obtained after purification. 17,17 - Ethylenedioxy - 9 - oxo - 11α,15(R)- bis - (tetrahydropyran - 2 - yloxy) - 5 - cis, 13 - trans - prostadienoic acid is heated with acetic acid, water and tetrahydrofuran, and, after purification, 11α,15(R)-dihydroxy, 9,17- dioxy - 5 - cis, 13 - trans - prostadienoic acid (17-oxo-15-epiprostaglandin E 2 ) was obtained.
Patent GB-1333303-A (GB)
Title: Windscreen wiper arms
IPC: B60S1/34
Filed: 1971-04-19
Abstract: 1333303 Mounting windscreen wiper arms on Shafts TRICO-PRODUCTS CORP 19 April 1971 [25 Feb 1970] 22573/71 Heading F2U An assembly comprises a windscreen wiper blade mounted on a channel 28a straddling and mounted by a pin 14, 14a to a head 12, the channel being biased to load the blade (e.g. by a tension spring 32a or compression coil springs 32 in recesses 30), the head having a recess 34, 34a suitably shaped to receive a serrated drive head 38, 38a and a movable (e.g. pivotable or laterally translatable) locking part 42, 42b movable between a first position preventing removal of the drive head 38, 38a from the recess 34, 34a and a second position engaging (e.g. by part 46, 46b) one of the channel walls to limit movement of the wiper blade towards a suitable windscreen in which an abutment 56, 56b on the part 42 engaging a wall of the channel to prevent inadvertent movement to the first position. The head 38 may be retained by an edge of the part reducing the opening of the recess 34.
Patent GB-597842-A (GB)
Title: Improvements in or relating to the making of glass
IPC: C03B5/225
Filed: 1945-09-03
Abstract: 597,842. Glass-melting furnaces. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. - GOBAIN, CHAUNY, & CIREY. Sept. 3, 1945, No. 22575. Convention date, April 13, 1944. [Class 51 (ii)] [Also in Groups XI and XXIII] To ensure that the bubbly glass passing from the melting zone of a furnace to the top of a collected body of fined glass in a separate fining zone shall be at a sufficient temperature to prevent it sinking through the already fined glass until it has itself been fined, the glass is heated during such passage. The temperature in the melting zone need therefore be only sufficient just to melt the glass. The fining is effected by the passage of current between electrodes immersed in the top of the molten glass in the fining zone which is fed from the top of the melting zone as in Specification 597,838. Several arrangements of intermediate heating means are described comprising electrodes either in the melting zone immediately in front of the passage to the fining zone, or actually in such passage or, as shown, in a second stop 12 between such passage 4 and the actual fining zone 2. The intermediate heating may, however, be effected by gas. When the melting zone 1 is heated by gas the hot exhaust may be passed through the double roof 14, 15 of the fining zone.
Patent GB-865799-A (GB)
Title: Improvements in or relating to transistor amplifiers and detectors
IPC: H03G3/12
Filed: 1959-07-01
Abstract: 865,799. Transistor amplifier and detector circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 1, 1959 [July 15, 1958], No. 22580/59. Class 40(6) An amplifier or detector comprises a transistor having the output load in the collecter circuit and gain control provides complementary variation of one impedance in shunt with the load and another in the emitter circuit. The transistor 3 is biased so as to demodulate the R.F. or I.F. signal from transformer 27. When the variable resistor 23 is in its upper position, maximum negative feedback is provided by resistor 11 and the output transformer 12 is short circuited. As the output is increased by moving the slider 25 downward, the gain is increased by progressive by-passing of the feedback resistor 11 via capacitor 24. A.G.C. may be obtained from the rectified carrier wave present at the emitter or the collector. Fig. 1 (not shown) relates to a similar gain control arrangement applied to an audio amplifier.
Patent GB-301356-A (GB)
Title: Means for reducing interference such as cross-talk in electric signal transmission systems
IPC: H04B3/20
Filed: 1927-08-27
Abstract: 301,356. Standard Telephones & Cables, Ltd., (Western Electric Co., Inc.). Aug. 27, 1927. Induction, preventing and minimizing.-In a signal transmission system in which lines are adjacent to each other for at least part of their length, attenuating networks K, K<1> are provided in the input of the terminal stations so that crosstalk produced by reflection from the terminal apparatus is attenuated more than signal currents by traversing the networks twice. The Figure shows two single channel carrier current lines ML1, ML2, in which mutual interaction is further reduced by employing the same energy level on both lines where they are adjacent to one another. Incoming signals from a telephone line L are applied to a modulated OM and an amplifier G to raise the energy level of the line ML1 to that of the line ML2 at adjacent points, while a resistance pad P<1> in the distant receiving channel lowers the energy to the normal value. A corresponding resistance pad P and amplifier G<1> are used for signalling in the opposite direction.
Patent GB-301358-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T13/46
Filed: 1927-08-27
Abstract: 301,358. Winter, H. J., and Westing- house Brake & Saxby Signal Co., Ltd. Aug. 27, 1927. Fluid-pressure.-Application of the vacuum brakes on a locomotive is brought about by the application of the compressed air brakes on the train by means of a control valve comprising a valve 19 adapted to admit air to the vacuum train pipe 7 and controlled by the pressure in the compressed air train pipe acting in a chamber 14 on a piston 18, and the pressure in the vacuum train pipe acting in a chamber 3 on a diaphragm 2 and a substantially constant pressure acting in a chamber 10 on a piston 9. The pistons 9, 18 and the valve 19 are attached to the diaphragm by spindles 9<a>, 21. The constant pressure is supplied to the chamber 10 through a non-return valve 12 and the chamber 14, from a pipe 15 connected to the equalizing reservoir 16 of the compressed air drivers valve. Atmospheric pressure exists in chambers 4, 20. When the pressure in the compressed air train pipe is reduced the pressure in chamber 14 is reduced and the pistons and diaphragms move to the left to open the valve 19 and admit air to the vacuum pipe 7 through the chamber 3 and pipes 5, 24, until the pressure in the chamber 3 is sufficient to move the diaphragm to reclose the valve 19. For every pressure in the compressed air pipe there is thus a corresponding pressure in the vacuum pipe. A modified arrangement is shown in which the constant pressure in the chamber 10 is replaced by a spring acting on the diaphragm 2. The spring and the constant pressure may be used simultaneously. A cock 6 is provided so that the control valve can be cut off from the vacuum pipe 7 when the locomotive is coupled to vehicles having vacuum braking apparatus. When the control valve is connected to the train pipe 7 a small passage 26 in the cock leads to the ejector device 28.
Patent GB-704193-A (GB)
Title: Improvements in and relating to mobile moulds for the construction of buildings and similar structures
IPC: E04G11/34
Filed: 1951-09-27
Abstract: 704,193. Travelling moulds for casting concrete walls. FOGG, C. C., and SINCLAIR, H. P. Sept. 27, 1951, No. 22609/51. Class 20 (2) A travelling mould for casting cavity walls has inner and outer plates 10, 11 and 8, 9, Fig. 1, adjacent inner and outer plates being moved towards or away from each other by means of transverse supports 13 each comprising inner and outer sleeves 17, 19, Fig. 4, the outer sleeve 19 being formed in two separate sections 19a, 19b attached to the plates 11, 9 or 8, 10 and connected to the inner sleeve 17 by left and right handed screw threads 22, 22a rotation of the sleeve 17 being effected by means of an operating lever 23. The plates are adjustably mounted on the sleeve sections 19a, 19b by means of collars 21 and brackets 21a. The plates 8-11 are ganged together by rods 16 passing through the inner sleeves 17 and secured by nuts 18. Seals 25a on the sleeve sections 19a, 19b prevent dirt penetrating into the screw threads. The mould is supported on the previous course by means of side rails 27, Figs. 1, 4 each formed in two vertically adjustable parts 27a, 27b and connected to the outer plates by a screwed bracket 28 which is hingedly connected to a rod 30 on the rail 27. A clamping screw 32 serves to secure the bracket 28 and rail 27 rigidly together and when loosened permits the rail 27 to swing free of the mould plate when it is required to be lifted vertically. Plungers 34, Fig. 3, serve to facilitate horizontal movement of the mould and each comprises an end plate 34a and a bearer plate 35 having a plunger pin 36 and a guide pin 37 which project through holes on the end plate 34a. Cross pins 38 secure the plate 34a to the mould side plates. The mould is moved horizontally by pulley on handles on the side plates and simultaneously pressing on the plunger pins 36. Wall corners are formed by the provision of additional side and end plates 40, 41, 46, Fig. 5 (not shown) together with a core 43, whilst a dovetail core piece 49 provides a key for an internal cross wall.
Patent GB-365996-A (GB)
Title: Improvements in and relating to apparatus for counting the number of operations of a machine
IPC: G06M3/02
Filed: 1930-07-26
Abstract: 365,996. Printing-machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Wood Newspaper Machinery Corporation ; 501, 5th Avenue, New York, U.S.A.) July 26, 1930, No. 22616. [Classes 100 (i) and 100 (ii).] Counting-apparatus: stopping - arrangements: feeding webs.-A counter attached to a printing-press controls means for determining the stopping of the machine after a predetermined number of operations and' is so arranged that its actuation is suspended during a test pull or when the paper web breaks. An eccentric 11 driven by the folding-mechanism 10 operates in the backward direction a counter 13 which has previously been set by hand to the number of products required. When all the wheels have been returned to zero, segments 15 thereon contact with brushes 16 and complete a circuit through a solenoid 19 to close a circuit 22 and cause either the stopping of the press or the giving of a signal. If a test. pull is made a switch 30 is closed manually to cause the' energization of a solenoid 25, the armature 26 of which then moves under a projection 27 on the link operating the counter and inhibits its action. The counting is also interrupted when a paper web breaks by the contacting of a roller 31 with' a roller 32, the two rollers being normally separated by the paper. In a modification, the counter is operated by an electromagnet energized at each revolution of the roller 10 and short-circuited when the counting is to be interrupted.
Patent GB-320448-A (GB)
Title: Improvements appertaining to settings for vertical retorts used in the production of gas and for like purposes
IPC: C10B1/04
Filed: 1928-08-04
Abstract: 320,448. Drakes, Ltd., and Drake, J. W. Aug. 4, 1928. Retort furnaces.-In a vertical retort setting of the kind described in Specification 8524/13 part only of the gas is admitted to the uppermost of the combustion chambers surrounding the retort while the remainder is admitted at a lower level. In the construction shown gas is supplied through the vertical flue 2 having ports g, g<1> leading respectively to the top and the third combustion chamber down. Air can be admitted at various levels through damper-controlled flues h<1>, while the combustion products pass downwards through the setting and are withdrawn at the base through the flues k. The second supply of gas is preferably admitted at about one third the height of the retort from the top, and the upper supply is so controlled that active distillation does not begin until the charge reaches the level of the lower supply.
Patent GB-807329-A (GB)
Title: A device for simultaneously cleansing the outlets for dust and clean gas in cyclones
Inventor: ALLANDER CLAES
IPC: B04C5/22
Filed: 1957-07-17
Abstract: 807,329. Centrifugal separators. SVENSKA FLAKTFABRIKEN A.B. July 17, 1957, No. 22669/57. Class 23 In a cyclone having a tangential inlet 1, dust deposited in the gas outlet 5 and the dust outlet 4 is removed by axial movements of a scraper 6 having annular parts engaging the walls of the outlets. The scraper is reciprocated by means of a rock arm 7 mounted on an axle 8. The pitch of the helix forming the scraper corresponds to that of the outlet flow of gas so that separation is enhanced. In a modification the scraper comprises a rod having rings in the vicinity of the outlet.
Patent GB-935405-A (GB)
Title: Anthranilic acid derivatives and methods for producing same
IPC: C07K1/00
Filed: 1961-06-22
Abstract: The invention comprises compounds of the formula <FORM:0935405/IV(a)/1> (wherein "lower alkyl" is a group containing not more than four carbon atoms) and salts thereof, their preparation by (a) condensing a benzoic acid derivative of the formula <FORM:0935405/IV(a)/2> with a compound of the formula <FORM:0935405/IV(a)/3> (wherein M is a hydrogen or metal atom, and one of Y and Z is an amino group and the other is a halogen atom), optionally followed by conversion to the free acid or a salt, or (b) hydrolysing a compound of the formula <FORM:0935405/IV(a)/4> (wherein R is a carboxyl group or a group hydrolysable to a carboxyl group), optionally followed by conversion to the free acid or a salt, and pharmaceutical preparations containing a compound of the invention and a carrier or diluent.  2-Methyl-3-ethylaniline is prepared by reacting 2-iodo-6-nitrotoluene with ethyl iodide in the presence of metallic sodium, and reducing the resulting 2-nitro-6-ethyltoluene with iron in methanol containing hydrochloric acid. N-(2,3-Dimethylphenyl)-benzimidoyl chloride is prepared by heating 21,31-dimethyl-benzanilide with phosphorus pentachloride, and is condensed with methyl salicylate in the presence of sodium ethoxide to yield a crude imido-ester which is heated in a nitrogen atmosphere to yield methyl N-(2,3-dimethylphenyl)-N-benzoylanthranilate. N-Pivalyl-2,3-dimethylaniline is prepared by treating 2,3-dimethylaniline with pivalyl chloride in the presence of pyridine, and is warmed with thionyl chloride to yield N-(2,3-dimethylphenyl)-pivalimidoyl chloride.  The latter is condensed with the sodium salt of methyl salicylate, and the resulting pivalimidoic acid ester is heated to yield methyl-N-pivalyl- N-(2,3-dimethylphenyl)- anthranilate, which is hydrolysed to the free acid.  o-Cyanophenyl N-(2,3-dimethylphenyl)-benzimidoate is prepared by adding o-cyanophenol to a suspension of sodium hydride in diethylene glycol dimethyl ether, followed by N-(2,3-dimethylphenyl)-benzimidoyl chloride, the mixture being then heated.  On heating at 270 DEG C. it affords N-benzoyl-2-cyano-21,31-dimethyldiphenyl-amine, which is hydrolysed by 50% sulphuric acid to the diamide.  The compounds of the invention mitigate the symptoms of rheumatic, arthritic and other inflammatory conditions, and may be administered orally or parenterally in the form of pharmaceutical preparations (e.g. tablets, capsules, powders and aqueous and non-aqueous suspensions and solutions) containing them in association with one or more solid or liquid carriers or diluents.
Patent GB-293225-A (GB)
Title: Improvements in or relating to methods of and means for effecting the transmission of moulding sand
IPC: B65G31/00
Filed: 1927-08-30
Abstract: 293,225. Axmann, F. K. Aug. 30, 1927. Rotary projectors.-Moulding sand is disintegrated and projected from a stationary supply to the place of delivery by the impact therewith of rapidly-rotating elements. As shown in Figs. 1 and 2, the sand is fed axially into a casing 1 containing rotating spring-controlled blades 2 carried by one or more arms 3 on a shaft 4 which may be driven by an electric motor. The inlet to the casing is in the form of a hopper 5. To enable the position of the outlet 1<a >to be varied, the casing is preferably mounted so as to be adjustable about the shaft 4, the hopper 5 and end plate 5<a> being independently mounted to remain stationary. The outlet may be formed with parallel walls, Fig. 2, or with diverging walls, Fig. 3. Hinged directing plates 8, operated by a handle h, may be fitted on the walls; or the plate 8 may be of flexible or spring-like material. The apparatus may be mounted on a truck and provided with a curved delivery conduit or guard, or the projecting- apparatus on a truck 9, Fig. 5, may be arranged to deliver through a separate curved guard 6<a> into a bin 7 which is fitted with a discharge valve 8 and delivers to a mould-box y. A vibrating screen may be fitted at the inlet to the hopper 5, and a magnetic separator for removing metal particles from the sand may consist of a magnetic roller projecting through the hopper wall. The apparatus may be mounted on a turntable which may be carried by a truck. The tandem arrangement of delivery units shown in Fig. 7 comprises a series of connected delivery units 1 and guards 6<c>, each unit delivering to its successive unit for the transfer of the sand laterally and vertically.
Patent GB-1467350-A (GB)
Title: Bearing-grease testing machines
IPC: G01N33/30
Filed: 1974-05-22
Abstract: 1467350 Testing grease CREUSOT-LOIRE 22 May 1974 [22 June 1973] 22795/74 Heading G1S [Also in Division H2] A machine for testing grease, Fig. 2, comprises a stator 52 and cheeks 53 enclosing a shaft 3 mounting a rotor 51 supported in bearings 61, 62 containing the test grease. The stator encloses electrical coils 571, 572 which may be energized to create a radial magnetic field in the gap between the stator and rotor which contains iron powder so that a braking torque is created to brake and heat the rotor when necessary during a load test. Independent regulation of the temperature of each bearing is obtained by varying the current in each coil, a deep groove 510 in the rotor tending to separate the heating effects of the two coils. The shaft 3 carries at its end two rollers 31 which may be variably loaded by motor driven rollers 7, Fig. 1, fixed to arms 70 pivoted at 71 and weighted by adjustable weights 73. The rollers 31 may be freed by raising jacks 74 and the arms 70 in order to record deceleration of the rotor supported solely by the bearings containing the test grease. Alternative driving arrangements including end motors and clutches for the shaft 3 may be provided and the grease with or without added contaminants, may be charged through apertures 66 into the housing 60. Thermocouples 63 each connected to a temperature programmer (631) Fig. 3 (not shown) are provided and relays are actuated when the temperatures reach required values to switch off the current to the corresponding exciter coil. The brake may then be allowed to cool and be restored thereafter when the relays re-make. In operation the rotor is rotated and the bearings loaded and heated to different or the same test temperatures. The grease can be caused to flow into circular recesses 54 and then through ducts 56 to the outside in the form of drops which can be recovered and related to the temperature to give the dynamic drop point. Jacks 74 may be raised in another test to free the rollers 31 to allow the deceleration of the rotor to be checked and related to viscosity, and from the known inertia of the rotor the drag torque may be determined. The stator may be variably vibrated perpendicularly to the axis of rotation in the horizontal plane and loads could be applied in the form of weight discs to each end of the shaft 3.
Patent GB-205277-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23D11/38
Filed: 1922-08-22
Abstract: 205,277. Wallace, J. H. Aug. 22, 1922. Spray burners.-A spray burner comprises a body c containing oil and compressed air regulating valves, a projecting tube a screwed in the body c against a jointing washer s, and a spraying nozzle e screwed on the tube a. A cylindrical rotatable body m having one or more helical grooves n in its periphery is housed in a cavity k in the nozzle e. The cavitv k is of slightly. larger diameter than the bore of the tube a and terminates in a conical space o communicating with the spraying orifice h. The body m has a conical end p having a base slightly less in diameter than the cylindrical part. The front of the nozzle is made concave.