baber/WOPTO huggingface dataset:
Patent GB-1448894-A (GB)
Title: Benzodiazepines
IPC: C07D243/16
Filed: 1974-05-14
Abstract: 1448894 Benzodiazepines DDSA PHARMACEUTICALS Ltd 12 May 1975 [14 May 1974] 21195/74 Heading C2C Compounds of the general formula (R 1 =H, halogen, CF 3 , CN, NO 2 , C 1-10  alkyl, alkoxy or alkylthio; R 2  = C 1-10  alkyl or hydroxyalkyl, C 2-6  alkenyl, benzyl; R 3  = C 1-10  alkyl ; R 4  = phenyl, (C 1-10  alkyl)phenyl, nitrophenyl, halophenyl, pyridyl) and their acid addition salts are prepared by reacting an aqueous acid solution of a compound of the formula with an excess of R 3 CHO, and may be converted (a) to compounds of the formula and their salts by refluxing in a suitable solvent, or (b) to compounds of the formula and their salts by treating with a base, optionally followed by salt formation. Compounds I and III and their salts are tranquilizers, sedatives and hypnotics, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-919508-A (GB)
Title: Bathing trunks
IPC: A41D7/00
Filed: 1961-06-13
Abstract: 919,508. inflatable swim wear. GEIER, A. June 13, 1961, No. 21217/61. Class 141. Bathing trunks are provided with inflatable pockets 5 and an inflatable portion 3 extending above the waist-band 4 and held round the body by straps 15, 16. The portions 5, 3 are inflated through a tube 6 with a stopper 8. When deflated the part 3 is folded -inside the trunks and the portion 10, simulating a belt, is fastened to the waist-band 4 by means of press-studs.
Patent GB-689115-A (GB)
Title: Manufacture of 2:4:4-trimethyl pentanal
IPC: C07C45/58
Filed: 1949-09-21
Abstract: 2 : 4 : 4-Trimethyl - pentanal is obtained by bringing 1 : 2 - epoxy - 2 : 4 : 4 - trimethylpentane into intimate contact with an aqueous solution of a strong acid of a concentration of less than 25 per cent to form a two-phase mixture and maintaining the temperature in the reaction mixture between 80 DEG  C. and the boiling-point thereof. Specified acids are sulphuric, phosphoric, and p-toluene sulphonic acid.  The yield of aldehyde may be increased by carrying out the process in the presence of an organic solvent for the epoxide, which solvent is, however, practically incapable of dissolving the aqueous acid and is inert thereto.  Specified solvents are hydrocarbons such as paraffins, olefines, aromatic hydrocarbons and naphthenes, or halogenated hydrocarbons such as chloroform and carbon tetrachloride, or ethers which are liquid under the reaction conditions.  The isomerization may be carried out batchwise or in a continuous manner. Instead of using the epoxide in an isolated or concentrated form the crude oxidate resulting from the oxidation of alpha-diisobutylene in the liquid phase with oxygen in the presence of an oxidation catalyst, as described in Specification 682,067, may be used and in this case the unreacted di-isobutene serves as a solvent for the epoxide.  In an example a normal solution of sulphuric acid is heated to boiling in a reactor provided with a reflux condenser and a solution of the epoxide in cyclohexane is then introduced at the bottom of the acid solution which is maintained at between 80 DEG and 85 DEG  C.  Trimethyl pentanal is separated from the upper layer by distillation.  Instead of refluxing the mixture the aldehyde and solvent may be continuously distilled from the reactor in the form of their azeotropes with water.
Patent GB-1012335-A (GB)
Title: Reduction of carbon monoxide content of exhaust gases of internal combustion engines
IPC: F02M23/12
Filed: 1962-06-01
Abstract: 1,012,335. Reducing carbon monoxide content of I.C. engine exhaust gases. C. GALIC. June 1, 1962 [June 2, 1961], No. 21289/62. Heading F1B. In a method of reducing the carbon monoxide content of I.C. engine exhaust gases, condensed fuel is collected in collection means in or adjacent to the manifold as near as possible to the inlet to the combustion chamber and at least a part of it is immediately reatomised by additional air supplied at the point of collection. The collection means may be a short pipe section, having a collection groove and of smaller diameter than the manifold or may be a rib, groove or step extending partially or completely around the inner periphery of the manifold. The additional air inlet may extend over one-third of the periphery of the manifold. Part of the condensate may be sucked off by vacuum or pump and returned to the carburetter or fuel supply line.
Patent GB-850424-A (GB)
Title: 6-methyl steroid compounds
Inventor: PETROW VLADIMIR
IPC: C07J7/00
Filed: 1959-07-09
Abstract: The invention comprises 6a  : dimethylpregna-4 : 16-dien-3 : 20-dione and 6a -methyl-16a  : 17a -(21 : 31-diazacyclopent-21-eno)-pregn-4 ene-3 : 20-dione, and the preparation of the former by reacting 6a -methyl-pregna-4 : 16-diene-3 : 20-dione with diazomethane to yield the diaza compound and then thermally decomposing this.  The first process is preferably performed in an inert organic solvent such as diethyl ether and the reaction mixture allowed to stand at room temperature for periods of 16 to 40 hours.  The thermal decomposition is advantageously performed at reflux temperature in an inert organic solvent of b.p. approximately the same as the m.p. of the diaza compound for a duration of 3 to 5 hours, suitable solvents being dibutyl ether, p-cymene and ethylene glycol.  An example is given.
Patent GB-213677-A (GB)
Abstract: 213,677. Relay Automatic Telephone Co., Ltd., and Johnson, B. B. Jan. 5, 1923. Semi-automatic exchange systems.-In a district-office system, a calling subscriber is connected over a trunk to a main exchange operator, who, if the wanted line is in the same district office, sends back impulses over the trunk to mark the wanted line, whereupon the connection is completed and the trunk is automatically released. When an idle feed relay group, Fig. 1, is taken into use, relays A, G, GX energize in turn, connecting battery to holding wires OH, MH, thus operating relay JM. Relay OJM1 in the trunk connecting group, Fig. 2, corresponding to the first available trunk OJ1 energizes, locks and connects up relay OJC over circuit 4, so that relays SCO, OJC, OJB are connected over circuit 5 to holding wire MH. Relay SCO breaks the circuit of relay JM and relay OJB the original circuit of relay OJM1, so that the next outgoing call energizes relay OJM2 corresponding to the next available trunk OJ2. Relay JM opens the locking circuit of relay OJM1, which releases. The calling lamp CL at the operator's position, Fig. 3, is lighted by the energization of line relay LE over the b wire in series with feed relay B<2>, which cuts out the thermostat TS. The operator inserts her answering plug P, Fig. 4, energizing feed relay B<1> over the a wire. If the wanted line is in the same district office as the calling line, the operator substitutes her calling plug P' for the answering plug and throws the dialling and ringing keys DK, RE, whereupon relay B<2> is short-circuited, and relay IC energizes over circuit 9, locks over contacts of relays RCO in the impulse recorder, and connects up relays I, ISC, RP. Relay ISC energizes relays BBS, BB, while relay RP completes the circuit of holding wire OH to the impulse recorder. The impulses sent by the operator over the a wire are repeated to the recorder by relay I through differential relay IS, marking the wanted line in the usual manner, and the connection is established in the local connecting group. The trunk OJ1 is released upon relapse of relays OJC, OJB after relay ISC and before relay BBS falls back upon operation of relay RCO. The relay switching apparatus may be replaced by a single mechanical switch of the trip spindle type, which is controlled by a register set by impulses sent by the operator. Specification 213,678 is referred to
Patent GB-841000-A (GB)
Title: Improvements in tunnelling or mining machines
IPC: E21D9/11
Filed: 1958-07-03
Abstract: 841,000. Mineral-mining machines; tunnelling machines. KIRKPATRICK, M. B. July 3, 1958, No. 21368/58. Classes 68(1) and 85. A mineral - mining or tunnelling machine has two coaxially disposed, rotary boring heads 1, 2 that can be individually anchored to the walls of a mined space formed by the machine and can be moved axially of each other. The head 2 is rotatably supported on a coaxial, cylindrical frame 3 in the peripheral wall of which are inflatable pads 32 that can be inflated so as to engage the wall of the mined space to serve as steadying means for the head 2 as it is advanced or to anchor the head to the wall. An inflatable band 14 is provided around tne periphery of the head 1 for the same purpose as the pads 32. The heads 1, 2 are secured to telescopic cylinders disposed to a common piston supported from one end of the cylinder carrying the head 2. The heads 1, 2 are driven through sun and planet gearing from motors M mounted on the frame 3 and can be individually halted by suitable brake means incorporated in the transmission. The machine can be steered by radially extending jacks 34a mounted on the frame 3.
Patent GB-1011147-A (GB)
Title: Device for electro-erosion treatment of metals
IPC: B23H7/18
Filed: 1964-05-25
Abstract: <PICT:1011147/C6-C7/1> In electrolytic machining, the wear by corrosion of the working electrode 3 is reduced by connecting it to the power supply through a capacitor 2 and resistance 1 connected in parallel.  An inductor 7 may also be included. The working electrode may be of copper.
Patent GB-168309-A (GB)
Title: Improvements in or relating to water-cooling systems for condensing plant on steam-driven vehicles
IPC: F01K9/00
Filed: 1921-08-12
Abstract: 168,309. Kohler, C. Aug. 24, 1920, [Convention date]. Cooling water by direct contact with cooling - media in apparatus for cooling the water of the condensing plant of steam locomotives by direct contact with an air current due to the movement of the vehicle, wherein a storage tank 8 for supplying make-up water to the collecting-tank 4 is provided. According to the invention, a valve 6 is arranged in a conduit 5 connecting both the storage and collecting tanks with the suction pipe 7 of the circulating pump, whereby the condenser may be supplied from the storage tank alone at times of heavy steam consumption, such as at starting or travelling up inclines, or from the collecting-tank alone during normal running, or partly from each tank. The storage water may be sprayed through a separate air channel 13 from pipes 12, and a valve 11 at the bottom of the main air channel may be set to allow the water to collect in the collecting-tank 4, or in the storage tank 8, or partly in each tank. The make-up water passes from the storage tank to the collecting-tank through a float-valve 9.
Patent GB-848279-A (GB)
Title: A process for the recovery of acetylene from gas mixtures
IPC: C07C7/11
Filed: 1959-06-24
Abstract: Acetylene is purified by the process of the parent Specification in which acetylene is dissolved in a dialkyl sulphoxide and subsequently liberated by freezing wherein a freezing point depressant is added to the sulphoxide.  Acetylene can thus be absorbed at a lower temperature where the solubility is greater.  The mixture may contain up to 40% of the depressant which preferably has a melting point above -20 DEG  C.  The examples employ as depressants (1) benzene, (2) dioxane and (3) nitrobenzene.
Patent GB-336302-A (GB)
Title: Improvements in or relating to jointed locking rings for closures for bottles, jars and like containers
IPC: B65D45/32
Filed: 1929-07-13
Abstract: 336,302. British Sure Seal Co., Ltd., and Stephens, W. A. July 13, 1929. Capsules and like closures; sealing devices.- Relates to closures of the type comprising a cap and a metallic encircling band having upper and lower flanges embracing the edge of the cap and a shoulder on the bottle &c. According to the invention a non-replaceable locking ring 1 for a bottle &c. has a tongue 5 formed at the end of the head 4 for threading through the slot 3 in the act of curling the band. The tongue is then bent back on the tail 2. The slot in the tail 2 may be formed by cutting and bending back a tongue 9 and this tongue is bent back into the slot to engage the tongue 5 to lock it after the ring is coiled. The tongue 9 acts as a cam facilitating the engagement of the tongue 5. The ring is holed or notched at 10 for engagement with a finger 12 on a cylindrical former. The former 11, Fig. 8, is disposed between guide plates 13 having a camming surface 14 for deflecting the strip. A plunger 15 is provided for setting the tongue 5 so that it will readily enter the slot 3. The plunger moves in a slot 18 when the rocker 16 is moved about its pivot by a trip 19. Pressing means comprise a roller 20 carried on a rocker 21 pivoted at 22. The former 11 comprises a cam 26 which operates a finger 23 and causes the roller 20 to press on to the jointed head and tail of the band. Intermittent rotation is imparted to the former through a handle 35 of an oscillating member 29 provided with a pawl 30 cooperating with a ratchet 31. The ejection of the jointed locking ring is actuated by the handle 35 through a finger 44 which actuates a collar on the former shaft carrying the ejector pins. The former may be automatically operated, and a resilient means may be provided to secure the wires on the face of the former during the coiling operation. Specifications 170,405, [Class 125 (ii), Bottles &c., Filling &c.], 280,623 and 280,839 are referred to.
Patent GB-121958-A (GB)
Title: Improvements in Fastening Means.
Inventor: WILLIAM HENRY MCLAUGHLIN
IPC: F16B35/04
Filed: 1918-07-31
Abstract: 121,958. McLaughlin, W. H. Aug. 28, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Shackles and chain couplings.-A coupling-device for the ends of non-skid chains for tyres, or other purposes, comprises a pin 3 disposed between lugs 1, 2 projecting from a two-part clamp A (adapted in the construction shown to be secured to a wheel-spoke). The pin 3 is formed with a head 4 adapted to fit a hole 7 in the lug 2, the other end of the pin passing through a smaller tapped hole 8 in the lug 1, where it is secured by an externally-threaded shouldered nut 5. A lock-nut 6, threaded oppositely to the nut 5, or other locking-means may be fitted at the reduced end 9 of the pin.
Patent GB-478076-A (GB)
Title: Improvements in and relating to appliances for feeding poultry and other livestock
IPC: A01K39/014
Filed: 1936-08-06
Abstract: 478,076. Feeding appliances for animals. SIMS, R. S. C. Aug. 6, 1936, No. 21650. [Class 5 (ii)] The cover 15 of a feeding-appliance for poultry or other livestock is held normally above the trough by a number of stays 17 secured to the cover and resting on projections 13 on the vertical wall 10 of the trough. The stays are bent outwardly at 18 to engage bent-over portions 14 of the projections 13 which may be inclined downwardly, as shown, or be stepped to prevent accidental displacement. The cover may be placed on the trough by rotating it so that the stays are freed from the parts 14 and raising it to clear stops 14a. The trough is provided with legs 12.
Patent GB-1300530-A (GB)
Title: Hydraulic control system
IPC: F16H61/06
Filed: 1971-04-19
Abstract: 1300530 Change-speed control TOYOTA JIDOSHA KOGYO KK 19 April 1971 [12 Feb 1970] 21681/71 Heading F2D In a fluid-pressure-controlled automotive transmission, wherein upshift is produced by pressurizing a high-speed clutch 120 and exhausting a low-speed clutch 130, through a shiftvalve 300, the low-speed clutch 130 exhausts initially through a line 811, 307, including a restrictor 812, which is by-passed when a restrictor by-pass valve 800 is moved upwards by pressure 809 from the engaging clutch 120, in opposition to spring and TV pressure 715, which delays release of the disengaging clutch 130 until the engaging clutch 120 reaches a TV-varied pressure which is lower than its maximum engaging pressure, providing torque overlap which increases with TV pressure. Disengagement and engagement of the lowspeed clutch 130 are rendered gradual by an accumulator 400, loaded by a spring and TV pressure 407. On downshift from clutch 120 to 130, the former releases rapidly, closing the restrictor bypass 800, to delay low-speed engagement to allow time for engine acceleration. In Fig. 8, not shown, the shift-valve 300 is actuated by a solenoid, but as shown, it is actuated by opposing governor and TV pressures 315, 314, provided respectively by an output driven governor valve 600 and acceleratoroperated valve 700. Pressure-time curves for upshift and downshift are included in Figs. 5-7, not shown.
Patent GB-784984-A (GB)
Title: Improvements relating to testing of compressors
IPC: F25B31/00
Filed: 1956-07-13
Abstract: 784,984. Testing compressors. GENERAL ELECTRIC CO. July 13, 1956 [July 13, 1955], No. 21751/56. Class 8(1). A compressor testing apparatus comprises means for obtaining the time taken for the discharge pressure to attain a predetermined value. Closing a switch 13 starts the compressor 4 which delivers to discharge conduit 3 and via a normally open valve 6 to atmosphere. Closing a switch 10 starts a clock 9 and energizes a solenoid 11 which closes valve 6 so that the compressor discharges into a line 2 leading to a capillary 1 and via a conduit 8 to a pressure gauge switch 7. The switch 7 includes electrical contacts which are normally closed but are opened when the pressure in line 2 reaches a predetermined value. Hence when the discharge pressure reaches the predetermined value at which the switch 7 is set, this switch opens and stops the clock 9.
Patent GB-764983-A (GB)
Title: A bucket assembly for attachment to a fork lift industrial truck
IPC: B66F9/19
Filed: 1954-07-26
Abstract: 764,983. Shovel bucket attachments for fork lift trucks. ADAMS, A. E. May 20, 1955 [July 26, 1954], No. 21790/54. Classes 78 (3) and 78 (4). [Also in Group XXI] A shovel bucket is provided with means for releasably attaching it to the fork of a lift truck. The bucket 11 is mounted for pivoting and sliding movement on members 17 secured to inverted channel members 22 which receive the fork tines 24 and are releasably attached thereto by a catch mechanism 34, 35. A latch 41 which is mounted centrally on a #-shaped member 36 secured to members 22, engages beneath a cross-bar 44 which is mounted on the bucket for pivoting movement about an axis 45a. The bucket is so designed that, when loaded, its centre of gravity is located between pivots 19, 45a; thus, when catch 41 is engaged with bar 44, the rear of the loaded bucket drops, whilst on release of catch 41 the bucket tilts to a discharge position. In various modifications (not shown) the catch mechanism 34, 35 may be either spring-loaded or dispensed with, and the whole assembly may be shrouded by a casing.
Patent GB-829826-A (GB)
Title: Improvements in or relating to wagon traversers
Inventor: BOYD JOHN
IPC: B61J1/10
Filed: 1956-07-14
Abstract: 829,826. Rail vehicle traversers. BOYD & CO. (ENGINEERS) Ltd., J. Oct. 9, 1957 [July 14, 1956], No. 21829/56. Class 104 (2). In a rail vehicle traverser having a table 5 carrying wagon-receiving rails 6 which lie above the level of the permanent way rails 14 and ramps 11 at the ends of the rails 6 the rails 6 are curved convexly upwards at least at their end regions so that as the leading wheels of the wagon run on to the rails 6 from the ramps 11 the wheels are elevated to carry the middle region of the wagon clear of the traverser. The rails 6, mounted on curved plate girders 10, have the ramps 11 pivotally mounted at 12 to their ends. The ramps 11 are upwardly biased by means of plate springs 13 so as to lie in the inoperative position above the surface of the rails 14. An inner downwardly projecting lug 15 is provided on each ramp 11 to position the ramp 11 relative to the rails 14. The traverser is mounted on pairs of wheels 16, 16A running on traverser rails 9 arranged at the same level as the permanent way rails 14. The wheels 16A are driven by an electric motor 7 through shafts 20, 21. The wheels 16, 16A are provided with load carrying flanges 17 which run on bearing portions provided at the bases of the traverser rails 9 where the running surfaces of the traverser rails 9 are interrupted. The wagons are pulled on to the rails 6 by a hook on a rope 22 extending around bollards 23 and over guide rollers 24 from a winch 18 driven by the motor 7 through shafts 25, 26. The central portion of very long rails 6 may be horizontal and the running surface of the ramps 11 may be straight.
Patent GB-644327-A (GB)
Title: Projection cathode ray tubes
IPC: H01J29/46
Filed: 1947-08-08
Abstract: 644,327. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. Aug. 8, 1947, No. 21923. Convention date, Dec. 19, 1946. [Class 39 (i)] In a cathode-ray tube for use as a high intensity fluorescent light source, high current density in the final cathode-ray beam is attained without correspondingly increasing the second anode voltage or the electron velocity at the screen, by employing a plurality of electron guns for projecting, without deflection of the beams, respective electron beams whose trajectories cross over at a common electron baffle electrode, the guns being individually adapted for focusing the several beams at the electron opening in the baffle to form a virtual cathode thereat, and electrode means adapted in conjunction with magnetic focusing means for focusing on the screen an image of the baffle opening. In one embodiment the cathode-ray tube has two diverging neck portions 11 and 12, arranged at an acute angle with respect to the central longitudinal axis of the tube 13 so that their longitudinal axes intersect at a plane 17-17, and containing electron-emitting cathodes . 18 and 19 and associated control electrodes 20 and 21 which are excited in parallel from a video amplifier. Surrounding the neck portions 11 and 12 are focusing coils 42, and 43, or permanent magnets may be used, which are adjustable by means of screws 47 and 50 to focus the two electron beams on the opening 38 in a baffle electrode 37 located in the plane 17-17, the side of the baffle electrode facing the cathodes being coated with fluorescent material to facilitate said focusing. A coil 54 acts as an electron lens to form on the fluorescent screen 16 an image of the virtual cathode at the opening 38. The tube is provided with internal conductive coatings 24 and 39 of, for example, colloidal graphite, forming first and second accelerating anodes, and has a conventional deflecting coil 55. Voltage supplies are obtained from a system of resistances connected across a supply of the order of 8000 volts, the cathodes being connected to a potentiometer slider arm 28, enabling them to be suitably biassed. A greater number of electron guns may be employed, said guns being arranged symmetrically around the longitudinal axis of the tube.
Patent GB-1460738-A (GB)
Title: Extensometers
IPC: G01N3/08
Filed: 1973-05-08
Abstract: 1460738 Extensometers DEFENCE SECRETARY OF STATE FOR 26 April 1974 [8 May 1973] 21924/73 Headings G1S and G1N Upper jaws 16, 18 and lower jaws 22, 24 are clamped by bolts 50, 52 and leaf-springs 42, 44, 46, 48 to a specimen 10 under a tension or compression test, so that stainless steel jaw supporting telescopic members 32, 34 preferably on each side slide relatively to one another in bushes 36 and on surfaces 38 of low friction material such as P.T.F.E. Transducers providing signals to an A.C. bridge are held to the outer telescopic members by spring clips 64 and each comprises a stator 58 and a movable core 60. Each differential transformer could however be replaced by a differential capacitor or by an arrangement of linear potentiometers. For testing on plastics materials the jaw contacts may be flat or rounded to a large radius.