baber/WOPTO huggingface dataset:
Patent GB-396413-A (GB)
Title: Improvements in lubricating boxes of axle bearings
IPC: B61F17/10
Filed: 1931-11-27
Abstract: 396,413. Vehicle - axle bearings. LEROY, J. E. J. and ROUY, A. L. M. A., 17, Rue de la Bienfaisance, Paris. Nov. 27, 1931, No. 32947. Convention date, Dec. 2, 1930. [Classes 12 (i) and 12 (iii).] A bearing box for railway vehicle axles has a hermetically sealed oil reservoir 31 connected to an oil bath 34 at the base of the bearing box by two conduits 33, 135, the former starting at the base of the reservoir 31 and ending below the oil level 35 in the bath 34, and the latter starting at the top of the reservoir 31 and ending at 36 at the line of intersection of the planes 35, 39, which the surface level of the oil may assume for various inclinations of the bearing box. The conduit 33 is controlled by a spring-pressed valve 43. This valve is normally held open by a rod 42 preferably secured to the filling stopper 41, and it is arranged so that when the stopper 41 is removed for filling purposes the valve 43 closes the conduit 33. As shown, the bearings for the axle 1 comprise a pair of needle roller bearings 2, 3, separated by a thrust bearing. The inner bearing races are formed on a steel sleeve 6 fixed on the axle 1, and the thrust bearing consists of annular shoulders 5 having slightly inclined sides co-operating with ribs on a bronze sleeve 4.
Patent GB-1160603-A (GB)
Title: Improvements in or relating to Transistorised Modulatable Oscillation Generators, Demodulators, Phase Detectors and Frequency Shifters
Inventor: MCDONALD ANDREW
IPC: H03B5/36
Filed: 1967-07-19
Abstract: 1,160,603. Transistor circuits. MARCONI CO. Ltd. 5 April, 1968 [19 July, 1967], No. 33137/67. Headings H3A, H3R and H3T. An amplitude modulator, demodulator, phase detector, or frequency changer comprises: first and second pairs of emitter coupled transistors T1, T2 and T3, T4, having an output load R1 common to T2, T3; a frequency determining circuit, e.g. crystal K, coupling the collector circuit of T4 to the base circuit of T1 and also to T3; means T5, T6 for applying antiphase signals to the common emitter circuits of the two pairs; and means for maintaining the bases of T2, T4 at a fixed potential. The arrangement is such that the two pairs act as alternately closing switches which close, one on the positive and one on the negative half-cycles, of a signal of frequency determined by the crystal K. An additional transistor T9 may be included to eliminate capacitive coupling to the output from the base of transistor T3. If the signal at IN is a modulation signal, or a signal to be frequency shifted, the resulting output is a suppressed carrier signal, from which one sideband may be removed by filtering. If the input is a suppressed carrier signal, and the frequency generated by crystal K is at the desired carrier frequency, the output is the modulation. If the input is a signal at the generated frequency, the circuit functions as a phase comparator. A capacitor may be added between the junction of D2, R6 and the emitter of T8 if a balanced supply is not provided, Fig. 4 (not shown).
Patent GB-1198863-A (GB)
Title: Improvements relating to Printing Rollers
Inventor: MACINNES HECTOR
IPC: B41F13/10
Filed: 1967-07-20
Abstract: 1,198,863. Printing surfaces. MACLELLAN RUBBER Ltd. 22 July, 1968 [20 July, 1967], No. 33291/67. Heading B6C. [Also in Division F2] In a printing roller of the kind having a cylindrical core with a covering of rubber engraveable by cutting to a predetermined depth to provide the required printing pattern, an intermediate layer of a rubber-treated material is provided in the rubber covering and is spaced from the outer surface of the covering at a distance equal to the required engraving depth. As described, a metal or copolymer core 1 is first either rough-turned, varnished and coated with a thin layer of vulcanite, or is smoothed turned and an adhesive coating applied thereto. A thicker layer 2 of unvulcanized rubber, either natural or synthetic, or a mix of these which may include some plastics, is applied over the vulcanite layer or adhesive, the thickness and hardness of the layer 2 being selected in accordance with the required resilience of the finished roller. The layer 2 is now semi-cured and its surface ground to provide a smooth surface to which is applied a solution of unvulcanized rubber. An intermediate layer 3 of cotton canvas proofed with rubber is now spirally or circumferentially wound on the layer 2 and over this is applied the engraving rubber layer 4 of a thickness, usually 1/8-1/4 inch, corresponding to the depth of engraving. The whole roller is now bound with a strip of fabric and completely cured, after which the fabric is removed. The engraved parts can be formed by making incisions in the layer 4 to the depth of the layer and peeling off the parts forming the pattern. Where a surface is required having two depths of engraving, two additional layers 3, 4 may be added.
Patent GB-1187216-A (GB)
Title: Production of Adipic Acid
IPC: C07C51/31
Filed: 1967-07-20
Abstract: 1,187,216. Adipic acid. BADISCHE ANILIN- & SODA-FABRIK A.G. 20 July, 1967 [22 July, 1966], No. 33305/67. Heading C2C. Adipic acid is prepared from a starting material selected from cyclohexanol, cyclohexanone, #-hydroxycaproic acid, mixtures thereof or mixtures present in the washing solutions from the oxidation of cyclohexane with air at elevated temperature and pressure by nitric acid oxidation of the starting material in the presence of catalysts containing vanadium with or without copper in zone 1, separation of the bulk of the adipic acid 7 in 5, return of the bulk of the mother liquor 4 into the oxidation zone 1 after the nitric acid content has been increased to about the concentration of HNO 3  in 1 by removal of water at 9, and distillation under reduced pressure of the remaining mother liquor in 12 to give HNO 3  at 13 and the residue is fractionated at 5-50 mm. Hg in 14 and the residue is separated into (a) a succinic acid and glutaric acid mixture or anhydrides thereof which fraction is separated in 15 and (b) a " bottoms " product of adipic acid and catalyst 6 which is returned to 1. Unit 15 separates succinic acid 16 from glutaric acid 17 and the " bottoms " is preferably dissolved in HNO 3  18 before further use.
Patent GB-1480072-A (GB)
Title: Method for making polyetherimides
IPC: C08G73/16
Filed: 1974-07-29
Abstract: 1480072 Polyetherimides GENERAL ELECTRIC CO 29 July 1974 [3 Dec 1973] 33347/74 Heading C3R A polyetherimide of intrinsic viscosity at least 0À1 dl./g. (DMF/25 C.), made by reacting equimolar amounts of a dinitrobisimide and an alkali diphenoxide MO-R-OM at up to 80 C. in a dipolar aprotic solvent, is stabilized against gel formation at elevated temperatures by heating a solution thereof in an organic solvent and containing an alkali metal organic stabilizer R<SP>2</SP>XM to a temperature of up to 60 C. for a time at least sufficient to render it free of tendency to gel at temperatures up to 315 C. In the formulµ R<SP>2</SP> is C 1-8  alkyl or an optionally substituted C 6-20  aromatic hydrocarbon radical; X is O or S; M is Na, K or Li; R is a C 6-30  aromatic radical and R<SP>1</SP> is an up to C 20  organic radical. Reference is made to Specifications 1,392,649 and 1,480,073 in respect of the polymers and their preparation. In specific examples the stabilizer is sodium p-cresoxide, p-thiocresoxide or phenoxide.
Patent GB-410829-A (GB)
Title: Improvements in or relating to stoves for frying, water heating and other purposes
IPC: A47J37/12
Filed: 1932-11-25
Abstract: 410,829. Frying and like stoves. SOUTH METROPOLITAN GAS CO., and COOKE, H. R. M., 709, Old Kent Road, London. Nov. 25, 1932, No. 33426. [Class 126.] In a stove comprising a frying, water-heating, &c. pan 1 heated by liquid or gaseous fuel, and forming between it and a contiguous part 8 of the stove a flue 5 for the combustion products, the part 8 is movable to enable the walls of the flue to be exposed for cleaning. In the stove shown, the part 8 forming the lower wall of the flue is hinged and provided with a catch so that it may be lowered, as shown. It may carry a block of insulating material 9 forming a continuation of similar insulation provided in the body of the stove. Specification 389,182 is referred to.
Patent GB-604995-A (GB)
Title: Improvements relating to the sterilisation of water
IPC: C02F1/76
Filed: 1945-12-11
Abstract: Water with a residual chlorine content within a predetermined range is produced by steps which comprise estimating the residual chlorine content by causing a colour change in a portion of the water by treatment thereof firstly with a cyanogen compound yielding cyanogen chlorine and then with a nitrogen ring compound capable of forming a quaternary salt and an aromatic amine or a salt or derivative thereof, the residual chlorine content being then adjusted in accordance with the estimation to bring the water within the described range.  The cyanogen compound may be a cyanide, cyanate or thiocyanate, the nitrogen ring compound may be pyridine, picolines, quinolines or nicotinic acid or derivatives thereof, and the organic base may be benzidine, ariline, o-tolidine, di-anisidine, or p-aminoacetophenone.  The estimation may be performed photoelectrically with automatic control of the supply of chlorinating agent or diluent to the water.
Patent GB-432794-A (GB)
Title: Improved starting device for single-phase asynchronous motors
IPC: H02K7/118
Filed: 1933-11-29
Abstract: 432,794. Induction motors. DAMOND, E., 28, Rue des Annelets, Paris. Nov. 29, 1933, No. 33499. Convention date, Nov. 30, 1932. [Class 35] It is stated that a single-phase squirrelcage motor in which the spacing of the rotor bars differs from that of the stated poles, either because the numbers of the two are different, or because the stator poles are unequal in size, has a number of positions of magnetic equilibrium in which there is no starting torque, separated by positions in which, when the rotor is stationary, there is a torque urging the rotor towards a position of equilibrium, and that if the rotor is stopped in one of the latter positions it will start from rest. For this purpose the rotor is provided with an eccentric weight 3. In order to balance the rotor during running a weight 4 is provided in a casing 8 so. as to move outwards when the motor is running against the action of a spring 6, and balance the weight 3. The Specification as open to inspection under Sect. 91 also describes a magnetically controlled pawl for stopping the rotor. This subject-matter does not appear in the Specification as accepted.
Patent GB-1360626-A (GB)
Title: Frequency controlled oscillator
IPC: H03K4/501
Filed: 1971-07-16
Abstract: 1360626 Transistor oscillators; automatic frequency control RCA CORPORATION 16 July 1971 [31 July 1970] 33530/71 Headings H3A and H3T A frequency controlled oscillator comprises a bistable circuit 72, 73 feeding an integrator 77, 78, 79, the output from the integrator being fed back to provide set and reset signals for the bi-stable via a threshold arrangement 71 which provides a reset signal when the integrator output level is equal to a reference level, and a set signal when the integrator output is equal to the frequency control voltage level. When capacitor 77 is discharged, transistor 71 is off, and cross-coupled transistors 72, 73 are on. When capacitor 77 has charged to a first predetermined threshold, transistor 77 conducts and transistors 72, 73 turn off. Capacitor 77 now discharges to a lower threshold at which 71 turns off and 72, 73 turn on. The turn on point of 72 is varied by a transistor 74 to which a control voltage is applied. The arrangement is used in a television timebase synchronizing, the control signal being derived from a phase comparator 46, 48 which compares the received sync. signal and the oscillator signal.
Patent GB-334442-A (GB)
Title: Improvements in fire extinguishers
IPC: A62C11/00
Filed: 1929-11-04
Abstract: 334,442. Everitt, W. E. Nov. 4, 1929. Pistons; packing.-The piston of an air pump employed in a powder - type fire - extinguisher comprises a cup-leather 5 which is held expanded by a spring 9<11> and is backed by a metal sleeve 9. Air apertures 10, 11 in the sleeve and leather are out of alignment. The sleeve acts as a guide for the piston-rod and prevents the leather from buckling upwards.
Patent GB-818015-A (GB)
Title: Improvements in or relating to reversible stacking and unstacking mechanisms for a series of flat bodies
Inventor: GEISOW JOHN CHRISTOPHER HOWARD
IPC: B65G57/30
Filed: 1956-11-03
Abstract: 818,015. Stacking and unstacking. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 31, 1957 [Nov. 3, 1956], No. 33617/56. Class 94(1). [Also in Groups XXX and XL(a)] A mechanism for stacking and unstacking a series of flat bodies, in particular, trays 18 carrying in holes 19 radioactive samples or radiation absorbers, comprises a pair of hollow cylindrical cams 1, 2 rotatable by a shaft 3 through a gear train 4. Each cam is a mirror image of the other and has a helical portion 5 and a portion 7 parallel to the rotational axis. The trays are located for feeding to and from the cams by a horizontal guide having a floor 8 and sides 9, the floor being slotted at 10 and the sides 9 extending within the cams. Vertical guides 15a, 16a locate the trays in a stack above the cams 1, 2 the lower-most tray resting on the cylindrical cam surface 17, there being space beneath the guide 16a to permit the passage of the trays 18 along the guide floor 8. Considering an unstacking operation, the cams are rotated in the direction U whereby the cam portions 7 lower the bottom tray on to the floor 8 and the helical cam portions 5 engage the corners of the tray to eject it from the stack, Fig. 4 (not shown). The following tray is similarly ejected upon the next revolution of the cams, this tray pushing the previously-ejected tray before it. Thus the trays may be unstacked one-by-one and pushed through a lead castle 20 containing a radiation counter. A similar mechanism (not shown) is provided on the other side of the castle its cams rotating in the opposite direction S so that the trays being pushed through the castle are stacked. During stacking a tray is pushed along the floor 8 up to the stop 15a and is then lifted by the cam portions 7. The two mechanisms are operated conjointly so that trays are moved in one direction through the castle in a dis-continuous manner, the stationary moments being long enough for the count to be made, the trays then being rapidly fed back in a continuous manner by reversal of the cams.
Patent GB-1107944-A (GB)
Title: Ball-point pens
IPC: B43K1/08
Filed: 1966-07-26
Abstract: 1,107,944. Ball-point pens. G. LINZ. 26 July, 1966 [26 April, 1966], No. 33620/66. Heading B6P. Machined into the seating 3 and shoulder 7 of a ball-point pen nib are five radial duets 8, each of which has a maximum cross-section of 1000 Á<SP>2</SP>. A maximum duct width of 20 Á and a maximum depth of 20 Á is acceptable, but if the depth is reduced by wear during the life of the pen, by for example 30 Á, then the depth should be at least 50 Á but should not exceed 100 Á. In the case of these greater duct depths, the duet widths should be at most 10 Á.
Patent GB-835902-A (GB)
Title: Well apparatus
IPC: E21B34/02
Filed: 1956-11-06
Abstract: 835,902. Wells. BUTLER, G. A. Nov. 6, 1956 [July 12, 1956], No. 33883/56. Class 85 A plug 10 having a bore 35 spans a joint between upper and lower well-head fittings 11, 12, and supports a well pipe 55 to form a continuous flow passage from the pipe to the upper fitting. During completion of the well the pipe is run through the tubing head 12, a spring 50 and a ring 49 are set in a bore 38 in the head, the plug housing a check valve 72 is screwed to the pipe and lowered on to a seat 40 in the head, and set screws 44 are engaged with the plug, a packing 43 and the check valve making it safe to remove the blow out preventers before the tubing head adapter 11 is fitted. The adapter is then bolted to the head, a spring 46 and a ring 47 being set in the bore 37 of the adapter. Finally a plastic sealant is supplied to the space below the ring 47 and to the space above the ring 49 to seal the plug to the fittings.
Patent GB-1166757-A (GB)
Title: Auxiliary Feeding Devices in Sewing Machines
IPC: D05B27/18
Filed: 1967-07-24
Abstract: 1,166,757. Sewing machines. VIRGINIO RIMOLDI & C. S.p.A. 24 July, 1967 [27 July, 1966], No. 33907/67. Heading D1G. In a cup-feed sewing machine, one cup transmits one-way step-by-step motion to the other cup by means provided within the overhanging bracket of the machine frame, and said means are operatively connected by further means to two downwardly-extending- vertical shafts journalled within said bracket and carrying two auxiliary feed rollers spaced behind said cups, for transmitting to saidrollers step-by-step motion in synchronism with the rotation of said cups. A shaft 19, rotated step-by-step and carrying a feed cup 3, is coupled by gearing 20, 21 to a shaft 22 which is journalled in the overhanging machine frame bracket 2 and is coupled by gearing 23, 24, 26 to a shaft 27 connected by a universal coupling 28 to a shaft 29 journalled in bracket 2 and carrying a feed cup 4 co-operating with feed cup 3. The intermediate gear 24 is coupled by gearing 32, 33 to a shaft 34 which is journalled in bracket 2 and detachably carries an auxiliary feed roller 30. Gear 26 is coupled by gearing 36, 38 to a shaft 39 which is journalled in bracket 2 and detachably carries an auxiliary feed roller 31 cooperating with feed roller 30. Gears 32, 33 are mounted on an arm 41 which is pivoted on the shaft 25 carrying gear 24. Arm 41 may be swung, against spring bias, to separate roller 30 from roller 31. The diameters of rollers 30, 31 may be varied.'
Patent GB-341601-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J61/30
Filed: 1929-11-07
Abstract: 341,601. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen ; 11, Ehrenbergstrasse, Berlin.) Nov. 7, 1929, No. 33952. Convention date, July 11. [Class 39 (i).] Glow-discharge tubes for lighting, filled with one or more metal vapours such as mercury, sodium, potassium, cadmium, zinc, caesium or alloys, with or without rare or common gases for starting the discharge, are formed partly or wholly of glass absorbing strongly infra-red rays, such as glass used to protect kinema films. The tube is thus maintained hot even with low outside temperatures, and condensation of the vapour, leading to change of colour or extinction of the discharge, is prevented. The absorbing glass may form the part of the tube less heated by the discharge, for example, near the electrodes, or may form the main length of an advertising sign, more exposed to cooling than the electrode chambers. The tube may have double walls with either or both walls of the absorbing glass. The space between the walls may be exhausted or filled with a gas of low heat-conductivity such as nitrogen or argon or with a gas absorbing infra-red rays such as carbonic acid gas or water vapour.
Patent GB-1361934-A (GB)
Title: Pressure band filter
IPC: D21C9/18
Filed: 1972-07-20
Abstract: 1361934 Apparatus for forming fibrous webs J M VOITH GmbH 20 July 1972 [30 July 1971] 33985/72 Heading D2A Apparatus for forming a fibrous web comprises endless foraminous bands 3, 4 extending round a perforated forming cylinder 2 and through a roller press 14, 15, 16 disposed above the cylinder 2, and a headbox 6 for supplying stock to a gap 5 formed between converging parts of the bands adjacent the lower part of the cylinder 2, the bands with the fibrous web between them leaving the cylinder 2 at the upper rising quadrant of the cylinder. Two rolls 8, 9 mounted on pivoted levers 10, 11 are urged by members 12, 13 to press against the bands on the cylinder 2, and the two rolls 14, 16 of the roller press are mounted on pivoted levers 17, 21 urged by members 19, 22 to press the rolls 14, 16 towards the roll 15. The roll 16 is driven, no other drive being necessary for the other rolls or the cylinder 2. Water is collected in troughs 28. The support framework have removable members 25, 26, 27 to facilitate changing the bands.
Patent GB-411155-A (GB)
Title: Improvements relating to the dehydration of gas
IPC: C10K1/00
Filed: 1932-12-01
Abstract: 411,155. Drying gas. BRYANT, D. Y., 291, Crow Road, Broomhill, Glasgow, and FIRTH BLAKELEY SONS & CO., Ltd., Vulcan Works, Church Fenton, near Leeds. Dec. 1, 1932, No. 33988. [Class 34 (i).] Drying-apparatus for manufactured gas comprises a vessel having a spray supplying liquid dehydrating agent to a series of superposed trays, and above the spray a series of shelves for solid dehydrating agent. The liquid agent is continually circulated through the dehydrator, and gravitates through a cooler and direct into a tank from which it is recirculated. The discharge of liquid agent from the dehydrator may be automatically regulated, and the water supply to the cooler may be thermostatically controlled to regulate the temperature of the outgoing gases. In one form, a cylindrical container A is provided with spraying nozzles H from which the liquid, e.g. calcium chloride solution, passes down over trays B and C in countercurrent to gas introduced at E. Above the sprays are perforated trays J for the reception of solid desiccant, and baffles K to guide the gas stream over the trays. The liquid agent passes from the treatment chamber through a pipe M in a cooling tank, into a sight box having an adjustable weir T, and so to the stock tank R and pump Y. The flow of cooling water is regulated by a valve o controlled by the temperature of the outgoing gases. Another Figure shows a different arrangement of trays B and C and nozzles H.
Patent GB-1488311-A (GB)
Title: Installation for conveying living fishes particularly anaesthetized fishes in aqueous medium
IPC: A01K63/02
Filed: 1975-08-15
Abstract: 1488311 Fish tanks J M DOUTRELEPONT 15 Aug 1975 [23 Aug 1974] 34068/75 Heading A1A A tank for conveying anaesthetized fishes includes a pump 5 arranged to cause an upward flow in the liquid 4. Liquid sucked in through either header 11 or 13 to duct 7 is forced downwardly by screw 10 to be discharged through a perforated bottom plate 29 of the tank. Oxygen is supplied through duct 3 and diffuser 27 into the pump duct 7. Header 13 can be closed by duct 16 movable by handle 18. During the filling of the tank via device 30 water contacts in sequence a series of sensing elements in housing 48, 36 and 37 of which cause a sedative solution to be supplied through pipe 35. Depending on the number of fish placed in the tank the water level rises to contact further sensors 38 to 41 which cause further sedative to be supplied. During this time water is circulated at slow speed through header 13. When the level reaches sensor 42 water is circulated through header 11 at faster speed and header 13 is closed by duct 16. Loading of fish is stopped when the water level reaches sensor 44. In order to supply a suitable amount of sedative during the conveyance of the tank, the water in a cell 51 can be heated to induce movements of fish therein if unsedated and these movements are monitored by device 53 whereby the sedative supply can be increased. Fish are loaded at 57 and unloaded at 58. An alternator 55 driven by an engine 56 supplies power to the system.
Patent GB-506375-A (GB)
Title: A cutting and punching tool for slate and like materials
IPC: B28D1/22
Filed: 1938-11-23
Abstract: 506,375. Cutting tiles. PARSONS, H. L., and SCHWORK, S. Nov. 23, 1938, No. 34076. [Class 124] [Also in Group VIII] A tool for cutting and punching sheet-like materials such as tile, slate or composition shingles comprises a curved blade 9 pivoted at one end between plates 2 and co-operating therewith to cut material 6 supported thereon. The blade is hollow-ground, and tapers towards its non-cutting edge and towards the handle 11. A punch 12 co-operates with hole 13. A claw or anchor 8 is provided to bite into the ground to steady the tool.