baber/WOPTO huggingface dataset:
Patent GB-109323-A (GB)
Title: Improvements in or relating to Gas Producers.
Inventor: TULLY CORNELIUS BRITTIFFEE
IPC: C10J3/00
Filed: 1916-09-26
Abstract: 109,323. Tully, C. B., and Yeo, O. E. Sept. 26, 1916. Producers.-The gas - generating chamber of a watergas or carburetted water-gas producer consists of a lower chamber 1 and an upper thin-walled fuel-supply chamber 5 provided with a fuel inlet 6 and a valve-controlled gas-pipe 7. Between the chamber 5 and the producer walls is a steamgenerating chamber 26 packed with refractory material, communicating with a superheating-passage 31 in the lower part of the producer walls, and provided with bricks 32 which may be arranged chequerwise; the passage. 31 communicates with the lower part of chamber 1. During the gas-making period, water is fed from a nozzle 29 against a distributing-plate 30. The passage 31 and chamber 26 are heated, during the blowing period, by hot gases which escape through an outlet pipe 27 provided with a valve 28 Opposite the chamber 26 is an oil-cracking chamber 9 packed with refractory material and having a perforated floor 11 and a mixing-chamber 12, in communication with the upper part of the chamber 1; the chamber 9 is provided with an oil nozzle 16, distributing-plate 18, and outlet pipe 15, with valve 15<a>, for escape of hot gas during the blowing stage. Air is supplied, during the blowing stage, from a pipe 19 and through an inlet 3 and grate 2, part of the hot gas produced by combustion of the fuel passing through passage 31 and chamber 26; the rest of the hot gas passes through chamber 9, and its heating power may be increased before entering that chamber by admitting air, from pipe 19, through a branch pipe 20 and nozzle 14 into the mixing-chamber 12. Carburetted water-gas may be obtained by introducing after the blowing period, water from nozzle 29 and oil from nozzle 16, the resulting water gas and oil vapour commingling in the producer chamber and forming carbureted water-gas which passes away through the pipe 7. Heavy hydrocarbon may be injected at the same time through nozzles 25 into the producer chamber.
Patent GB-567669-A (GB)
Title: Improvements in or connected with lawn mowers
IPC: A01D69/02
Filed: 1943-08-23
Abstract: 567,669. Lawn-mowers. MILLS, S. Aug. 23, 1943, Nos. 13689/43 and 14478/44. [Class 6 (ii)] Electric driving-means for a lawn-mower comprises side-plates 11 attached to the normal framework, a countershaft 24 and a motor 14 suspended from a stationary cross-shaft 12. By means of levers 17, 16 and a slotted arm 20 the motor may be moved angularly about the shaft 12 to tension, and thereby render operative for driving, the belt 22. A chain 26 transmits the drive from the countershaft 24 to the ground-roller shaft 28 which is geared to the shaft of the cutter 32. The current cable is kept clear of the cutting mechanism by being gripped in the end of an arm projecting laterally from the machine. A dog-clutch may be interposed in the drive to permit manual operation.
Patent GB-349748-A (GB)
Title: Improvements in domestic refrigerating apparatus
IPC: F25B1/00
Filed: 1930-05-05
Abstract: 349,748. Refrigerating; refrigerators. DICKINSON, J. E., 3, Rosedale Road, Gordon, near Sydney, and JOHNSTON, J., 211, George Street, Sydney, Australia. May 5, 1930, No. 13767. Convention date, Oct. 30, 1929. [Class 29.] Compressionmachines.-A machine comprising a compresser 5 driven by an electric motor 6 controlled thermostatically, and an air-cooled condenser 7, is provided with a number of refrigerant receivers 15, 16, 17, through some of which the refrigerant passes in series, and with an expansion or cooling chamber 9 between the compresser and condenser. The compresser and condenser are arranged in a base compartment 14 of a domestic cabinet and the receivers and evaporator coils 22 in upper compartments. The expansion chamber 9 is provided with gills, and a fan 11 on the compresser shaft and another 13 on the motor shaft circulate air through the machine compartment. The last and largest receiver chamber 17 is fitted with perforated diagonal plates over which the condensed refrigerant falls, and a pipe extends from the lower part of this chamber to the usual expansion valve 21. The evaporator coils may be wound around and through a frame 24 supporting ice-making trays 25.
Patent GB-1215891-A (GB)
Title: Indicators for steam sterilisation
Inventor: MAXWELL ROY HENRY
IPC: A61L2/28
Filed: 1968-03-22
Abstract: 1,215,891. Temperature indicators. R.H. MAXWELL. June 17, 1969 [March 22, 1968] No.13850/68. Heading G1D. An indicator for steam sterilization comprises a steam sensitive indicator in the form of an opaque steam porous body, such as a sheet of paper, carrying a dyestuff remote from the front face thereof such that, under the influence of steam, the dyestuff will migrate to the front face thereof, and a temperature sensitive melt-type indicator in the form of a coloured surface coated with an opaque material which melts at a desired temperature, both indicators being sandwiched between a transparent or translucent front viewing sheet and a steam porous backing sheet, preferably of polymeric foam material, which permits access of steam to the indicators, whilst preventing leakage of the dyestuff. In a specific example given, the front viewing sheet was a transparent sheet of polyester resin having a pressure sensitive adhesive on one face. The steam indicator was in the form of a water soluble dye (carmoisine) bonded with a polymeric, preferably acrylic binder and coated on to a sheet of paper, the face of which remote from the dye was stuck to the front viewing sheet. It was arranged that under the action of steam the dyestuff would become visible from the front face in about twelve minutes. The steam indicator was cut in the shape of a disc with a central hole, the temperature sensitive indicator in the form of a sheet of black paper coated with rhamintol, an opaque white material which melts at 121‹ C., being located in the hole. A polymeric foam disc was added to the assembly as a backing sheet. The use is also described of a waterinsoluble dye in a water soluble binder and if desired one sheet of paper may be used to fulfill the functions of both indicators by having at least part of the back surface of the sheet coated with the dyestuff and at least part of the front surface coated with the melt-type indicator.
Patent GB-1344778-A (GB)
Title: Signal transmission system
IPC: G01S13/58
Filed: 1972-03-24
Abstract: 1344778 Doppler sonar FRIED KRUPP GmbH 24 March 1972 [26 March 1971] 13890/72 Heading H4D A frequency keyed transmitter provides signals of identical length and different frequencies which are all positive whole multiples of a fundamental frequency and a receiver includes a variable ratio frequency divider whose output is always at the said fundamental frequency plus any Doppler shift, there being provided a frequency analyser tuned to the fundamental frequency connected to the divider output. In a sonar system a two frequency source 3 is controlled by a programmer 2 to transmit a frequency keyed signal via switch 10 and transducer 5. Reflections from target 6 are conveyed via switch 10 to threshold 11 which produces constant level pulses from the cycles of the received signals. An exact number of cycles is transmitted during each keying interval and due to the Doppler effect the frequency of the reflected signals changes thus changing the length of each interval. The received pulses are fed to a monostable 9a, whose astable state is shorter than the signal interval. The monostable 9a is triggered by the first positive going edge in each interval and thus its output is equal in frequency to the fundamental frequency f 0 , of the keying, displaced by any Doppler shift. This shift is determined by a filter bank 7a after conversion to a sinusoidal signal by band-pass filter 9b tuned to f 0 . A system using more than two frequencies is also disclosed. In all cases the dwell time of the monostable in its astable state is defined by the reciprocal of the arithmetic mean of any two adjacent frequencies multiplied by the smaller frequency.
Patent GB-184579-A (GB)
Title: Improvements in internal combustion engines having rotating cylinders
IPC: F02B75/26
Filed: 1921-05-18
Abstract: 184,579. Golle, E. A. May 18, 1921. Two-stroke-cycle engines; driving-gear.-In an engine having rotating cylinders, the pistons are secured to rods 73 having free ends which alternately engage recesses 24 in a stationary disc 22 and recesses 25 in a rotary member 20; the member 20 is secured to a central shaft 13. The cylinders and the shaft are geared together by toothed wheels and rotate in the same direction. A charge under pressure is admitted to each cylinder when the pistons are at the ends of their instrokes, the pressure of the entering charges forcing the pistons a short distance along the cylinders, thus disengaging the piston rods from the rotating disc 20 and engaging them with the stationary disc 22. The piston rods remain in engagement with the disc 22 during the expansion strokes and are released, after the opening of the exhaust valves, by the pressure of air compressed by the pistons in the crank chamber 31. The movements of the pistons towards the cylinder heads draw the piston-rods into engagement with the disc 20, which rotates the rods and forces the pistons into the cylinders to expel the burnt gases through the exhaust valves. The inlet and exhaust valves are actuated by cams 18, 17 on a stationary ring 16 which also carries contact pieces 19 for igniting purposes.
Patent GB-425728-A (GB)
Title: Improvements in a method of preserving glycol ethers
IPC: C07C41/46
Filed: 1934-05-08
Abstract: Glycol ethers, especially the mono and dialkyl ethers of alkylene and polyalkylene 1,2 glycols, are stabilized by adding a small quantity of a hydroxyalkylamine such as triethanolamine. If aldehydes are present, the ether is preferably first treated by refluxing with acid, neutralizing with alkali, and distilling under reduced pressure.  In an example, the monoethyl ether of ethylene glycol is refluxed for 5 hours with a small quantity of sulphuric acid, then a slight excess of alkali is added, and the mixture is fractionated, after which 0,1 per cent of triethanolamine is added to the purified ether.
Patent GB-1159073-A (GB)
Title: P.C.M. Decoders.
Inventor: MCNEILLY JOSEPH HOOD
IPC: H03M1/00
Filed: 1967-03-28
Abstract: 1,159,073. Selective signalling. STANDARD TELEPHONES & CABLES Ltd. 28 March, 1967, No. 13952/67. Heading G4H. In a non-linear pulse code demodulator incoming code bits, by setting a counter to their inverse and then counting until it reaches zero (Fig. 6, not shown) are converted into a corresponding duration significant signal which is then given a polarity in accordance with the incoming sign bit and applied to a corresponding one of two transistors 22, 24, Fig. 2, causing a capacitor 21 to charge from zero towards + V or -V, (see Fig. 3), until the duration significant signal ceases (t, Fig. 3), after which the capacitor discharges to be sampled T at a duration after it began to charge, the sample produced being the required decoded output voltage.
Patent GB-567194-A (GB)
Title: Improvements in implements employed in agricultural operations such as the transplantation of cabbage and like plants and the sowing of seed
Filed: 1943-08-27
Abstract: 567,194. Planting- machines. BOMFORD, D. R. Aug. 27, 1943, No. 13969. [Class 6 (i)] In transplanting, seed - sowing and like machines, the drill-opening share 4 is preceded by a transverse bar 10 to remove undesirable top-soil and the like ahead of the drill. The. device, as applied to the coulter or share described in Specification 563,516, comprises arms 10a mounted on one of the pivots 7a of the coulter and adjustably supported by chains 11. An S-shaped projection 12 limits the fall of the soil-removing bar 10.
Patent GB-419606-A (GB)
Title: Improvements in or relating to wire feeding and severing mechanism
IPC: B21F99/00
Filed: 1933-05-15
Abstract: 419,606. Feeding wire &c. HOFMANN & CO., A., 635, 15th Street, West New York, New Jersey, U.S.A.-(Assignees of Palucki, C. B. ; 101, Wilbur Road, Bergenfield, New Jersey, U.S.A.) May 15, 1933, No. 14090. Convention date, July 12, 1932. [Class 83 (iv).] Stretching ; shearing.-In a reciprocating gripper wire feeding apparatus with straightening and severing means a single crank carries means for adjusting the length cut without disturbing the gripper action. A wire W is fed from a braked drum 13 past an electrically heated channel 15 wherein it is straightened by grippers 49, 50 on a carriage 18 reciprocated by a pitman 37 from an adjustable crank 33. On the crank is a cam 40 actuating a rod 44 parallel to the pitman for lifting the gripper 50 against the urge of springs 54. A cam 29 rocks an arm 66 on a rod 67 to lift a lever 68 and a rod 80 swinging a cam 77 which raises a holding gripper 70 against the urge of springs 74 to release the wire at the moment the feed grippers close. Shearing : The lever 68 operates a rod 86 connected to a lever 85 carrying a disc cutter 87 shearing against the edges of a hole 88 through which the wire projects.
Patent GB-943176-A (GB)
Title: Improvements in pulverising mills
IPC: B02C15/00
Filed: 1962-04-12
Abstract: 943,176. Edge-runner mills. BABCOCK & WILCOX Ltd. April 12, 1962 [April 13, 1961], No. 14113/62. Heading B2A. A pulverizing mill comprises a hollow roller 3 having an outer grinding surface which coacts with a table 4 and an inner grinding surface which coacts with a second roller 5, and means 8 for applying a controlled pressure between the grinding surfaces. Three sets of the rollers 3, 5 are equi-spaced around the table 4, with the rollers 5 of each driven by a motor unit 6 and so driving both the roller 3 and table 4. Material fed on to the table 4 via a central duct 9 is ground when it moves outwardly between the rollers 3, 5 and between the rollers 5 and table 4 while an adustable loading is applied to the surfaces by means of hydraulic or pneumatic jacks 8 disposed under bearings 7 of the table. On reaching the edge of the table, the material is entrained by a stream of air supplied from a chamber 10 and carried upwardly into a classifier 12 which returns unsufficiently ground material for further grinding preferably via ducts 13.
Patent GB-137744-A (GB)
Title: Improvements in boring and fastening devices
IPC: B63C11/52
Filed: 1919-06-04
Abstract: 137,744. Beckwith, W. C. June 4, 1919. Drilling submerged work; drills.-The shank of a drill is provided with a spring-controlled member 10 which is moved outwards, as shown, and prevents withdrawal of the drill. The device is applied to fixing a plate 1 to the side of a sunken vessel or other object, the farther side of which is inaccessible, the shank 3 being threaded to take a nut 13. The member 10 may be a ball, or a pivoted arm in a suitable recess.
Patent GB-743683-A (GB)
Title: Di-pyridyl aliphatic alkylene polyamine poly-acid compounds
Inventor: BERSWORTH FREDERICK CHARLES
IPC: C07D213/38
Filed: 1953-05-20
Abstract: The invention comprises compounds of formula <FORM:0743683/IV(a)/1> and acid-addition salts thereof, wherein A is an acetic or higher homologue acid residue (e.g. -CH2.COOM or -CH2.CH2.COOM, M being hydrogen, alkali metal, ammonium or substituted ammonium); R is a direct linkage, a methylene group, an ethylidene group or a group comprising a chain of up to 12 carbon atoms, the carbon atoms of such chain being saturated with hydrogen or alkyl radicals containing fewer carbon atoms than said chain; "alkylene" includes cycloalkylene and interposes 2 or 3 carbon atoms between the indicated nitrogen atoms (e.g. ethylene, propylene or trimethylene); and n is a positive integer.  The compounds are prepared (1) by carboxymethylation of a - aminopyridine or an a  - (aminoalkyl)-pyridine with sodium cyanide and formaldehyde, two mols. of the product being subsequently treated with one mol. of a polyalkylene polyhalide; (2) by reacting two mols. of a -chlorpyridine or an a -(haloalkyl)-pyridine with one mol. of a polyalkylene polyamine N-polycarboxylic acid; and (3) by reacting two mols. of a 2-acylpyridine with one mol. of a polyalkylene polyamine to form a Schiff's base, which is hydrogenated using a promoted nickel catalyst and the product carboxymethylated with sodium cyanide and formaldehyde.  The examples describe the preparation of compounds in which (1) n is 1, A is CH2.COOH, "alkylene" is ethylene and R is a direct linkage, a methylene group and an ethylidene group; (2) n is 1, A is CH2.CH2.COOH, "alkylene" is ethylene and R is a methylene group; and (3) n is 2, A is CH2.COOH, "alkylene" is ethylene and R is an ethylidene group.  Chelates with copper, cobalt and nickel are also described.
Patent GB-406166-A (GB)
Title: Improvements in and relating to excess voltage discharge devices
IPC: H01T2/02
Filed: 1933-05-17
Abstract: 406,166. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hull, A. W. ; 1435, Lowell Road, and Snoddy, L. B. ; 1113, Union Street, both in Schenectady, New York, U.S.A.) May 17, 1933, No. 14295. Convention date, May 17, 1932. Addition to 344,092. [Class 39 (i).] An excess voltage protective device comprises an evacuated vessel containing two main cold electrodes 3, 4, connected between the lines to be protected, and one or two auxiliary electrodes 15, 16 adjacent the main electrodes for producing a localized disruptive discharge, on the occurrence of a transient voltage, whereby the main discharge is initiated. The auxiliary electrodes are capacitatively coupled to the electrodes which are farthest from them, and may be coupled to the nearer electrodes through inductances or resistances. The device may comprise an evacuated vessel 2 with lead-in conductors 5, 6 connected to hemispherical main electrodes 3, 4 surrounded by a cylindrical shield 12 of glass, silica or other dielectric material which is provided with external metallic coatings 13, 14 opposite the electrodes 3, 4. The coatings 13, 14 are connected to auxiliary electrodes 15, 16 which extend through apertures in the cylinder 12 into the gap and have pointed ends arranged close to the electrodes to which they are not capacitatively coupled by the coatings 13, 14. The main gap may be about 1 cm. in length and the auxiliary gaps about ¢. Alternatively the main electrodes may be shaped and arranged on opposite faces of an apertured dielectric plate member, the auxiliary electrodes being pointed and arranged on the face of the plate member opposite to and on the same side as the main electrodes to which they are capacitatively coupled, Fig. 2 (not shown). In a further modification, Fig. 8 (not shown), the main electrodes are arranged in and surrounded by a " re-entrant " cylinder in the evacuated envelope, the capacitative coatings of the auxiliary electrodes being arranged on the exterior of the cylinder and the electrodes themselves extending through apertures therein into the gap space. The device may be mounted as one of the links of an insulator chain.
Patent GB-495965-A (GB)
Title: Manufacture of products containing nitrogen and sulphur
IPC: C08G73/04
Filed: 1937-05-22
Abstract: Resins are prepared by carrying out the process described in the parent Specification or Specification 495,964 in the presence of a water-soluble hydroxide or carbonate of an alkali or alkaline earth, e.g. caustic soda lye.  In examples, ethyleneimine or 1 : 2-propylene imine is reacted with carbon disulphide in the presence of caustic soda lye; polyethyleneimine is reacted with carbon disulphide and sulphur in the presence of caustic potash lye.
Patent GB-573699-A (GB)
Title: Apparatus for treating gases with electric glow discharges
IPC: H01J37/32
Filed: 1943-09-02
Abstract: <PICT:0573699/IV/1> Apparatus for treating gases with electric glow discharge at or above atmospheric pressures and maintaining the temperature at a relatively low value, consists of a reaction chamber 1, a stationary electrode 2 and a rotating electrode 3.  The electrode 2 consists of an adjustably-mounted carbon rod having its end disposed 2-5 mm. from the surface of the electrode 3 with a diameter of 25 cm., an axial length 1 1/2 inches, and a rotational speed of 250-4300 r.p.m.  The apparatus may be used for the production of acetylene by the dissociation hydrocarbon gases such as methane, propane, butane and kerosene vapours.
Patent GB-1034963-A (GB)
Title: Radar apparatus
IPC: G01S13/24
Filed: 1963-04-10
Abstract: 1,034,963. Pulsing carrier frequencies; radio frequency systems; pulse radar; valve circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 10, 1963 [April 11, 1962], No. 14369/63. Headings H3R, H3W, H4D and H4L. A radar transmitter 1 having a cyclically varying resonant frequency is triggered by a local oscillator 2 whose frequency is swept over the transmitter-frequency range and applied to a circulator 4 connected also to the transmitter output stage 1, and through a T-R switch 8, 9 with a rectifier 15 whose output is a minimum when the swept frequency and the transmitter output stage coincide in frequency. This minimum triggers a pulse generator 16 applying pulses to a modulator 17 connected with the transmitter. The frequency sweep of the local oscillator 2 is then immediately stopped and altered to a different value and the oscillator 2 then used for mixing with the echo pulse in the receiver 3. The T-R switch comprises two hybrid junctions 8 and an intermediate double T-R cell 9 and directs high input energy from the circulator to the antenna 11, or low energy to the rectifier 15, and echo pulses on the antenna to the receiver 3. The trigger pulse generator 16 actuates a monostable circuit 21, Fig. 2 (not shown), which returns to its stable state after a delay exceeding the maximum echo time interval and thereby actuates a second monostable circuit 22 which, on its return to a stable state, actuates a bi-stable circuit 23 so that a diode switch is blocked and a capacitor allowed to charge from an H.T. supply to generate the frequency sweep voltage for the oscillator 2. A trigger pulse from the generator 16 switches over the bi-stable circuit 23 so that the diode switch applies constant H.T. voltage to the capacitor. The initial switching over of the second monostable circuit 22 applies a re-setting voltage through a second diode switch to the capacitor, to re-set its starting voltage. The return to stable condition of the second monostable circuit 22 (and commencement of the frequency sweep) may be governed by a noise generating circuit 20. The capacitor may be in series with a resistor, and this series circuit arranged to compensate for the non-linearity of the frequency sweep of oscillator 2, e.g. a carcinotron. This resistor may be variable to compensate for the fact that the receiver I.F., being the difference between the " warm " and " cold " frequencies of the transmitter magnetron oscillator, minus the instant frequency change of oscillator 2 (due to the presence of the resistor when the charging of the capacitor starts) varies with the aging of the magnetron oscillator. To this end, the series resistor may be formed by a capacitor connected to the control grid of a pentode V1, Fig. 5 (not shown), with anode directly coupled to the grid of a cathode follower V2 whose cathode is directly connected to the other side of the capacitor. A control voltage detecting the I.F. value may then be applied to the pentode grid to vary the resistance of the circuit and hence restore the correct value of I.F. required.