baber/WOPTO huggingface dataset:
Patent GB-1419547-A (GB)
Title: Heat generators
IPC: F23C3/00
Filed: 1973-02-06
Abstract: 1419547 Combustion apparatus G M GOUBSKY 6 Feb 1973 5859/73 Heading F4B A heat generator comprises a cavity wall structure 1 providing a combustion chamber and a passage surrounding it for preheating the combustion air, an air inlet opening tangentially into the cavity, an air distribution ring 4 with tangential vaned inlets 8, connected to the upper and lower sections of the combustion chamber by spacers 7 providing air gaps, the effect of the inlets and the gaps being to produce toroidal vortices 24, 26 of secondary air in the combustion -chamber. Liquid fuel is fed under pressure to the jet 8 of the burner and the burner is surrounded by a swirler ring 10 for primary combustion air. Ignition electrodes 14 are provided to light the burner. The burning fuel spray from the jet 12 rises in a cone and penetrates the toroid 24. Any droplets not burned here enter and are burned in toroid 26. The hot combustion products leave the combustion chamber at E. In a similar form (Fig. 3, not shown) there are two air distribution rings, one in a narrow part of the combustion chamber near the fuel jet and one higher up in a wider section of the chamber. Such a combustion chamber is shown in Fig. 4. In this form however, the incoming combustion air is distributed via a box 39 to a number of heat-exchange tubes 45, 46 surrounding the combustion chamber, before being introduced into the combustion chamber through the distributer ring 38. There is a similar arrangement for the lower ring 50 and the bottom cone of the combustion chamber is surrounded by a heat exchanger coil 59 for the fuel. The chambers C, D, F containing the heatexchange tubes are filled with a heat transfer medium, e.g. a powder, granules, molten salts, liquids of high thermal conductivity and enthalpy or liquids in vapour phase. Tertiary combustion air is fed by a blower fitted with a damper into the inlet port 41. Primary and secondary air are also supplied under pressure as in the form of Fig. 1. In another form (Figs. 7-9, not shown) the combustion chamber is not cooled by the incoming combustion air but by a circulating cooling liquid. The air is applied to the burner and three successive distributicm rings either direct or after having been preheated.
Patent GB-379632-A (GB)
Title: Improvements in and relating to the manufacture of bituminous and like paints or coating materials
IPC: C10C3/02
Filed: 1932-02-27
Abstract: A bituminous or like paint is made by dissolving bitumen or the like in a tar oil such as naphtha which is free from pitch but has been treated with sulphuric acid to polymerize the coumarone-indene bodies it contains.  The sulphuric acid treatment of the naphtha may be followed by a treatment with a polymerizing agent containing chlorine, such as ferric, zinc, aluminium, phosphorus, and sulphur chlorides to cause a further formation of resin.  In examples: (1) a tar oil of boiling point 140-200 DEG  C. is treated with 1 per cent of sulphuric acid of 60 DEG  B<\>ae at 20 DEG  C.; excess acid is separated and the product is washed with soda; cracking-still asphalt is then dissolved in the treated oil; (2) solvent naphtha is treated with sulphuric acid as described above, and then with ferric chloride, and cracking-still asphalt is dissolved in the product; (3) heavy benzol is treated as in the last example, but with the substitution of zinc chloride for the ferric chloride, the asphalt being added as before.  Specification 118,079, [Class 95, Paints &c.] is referred to.ALSO:Coumarone-indene resins are produced by treating tar oil free from pitch and of boiling point not above 200 DEG  C. with sulphuric acid, and, if desired, subsequently with a polymerizing agent containing chlorine such as ferric, aluminium, zinc, phosphorus and sulphur chlorides to cause a further formation of resin.  In examples of tar oil of boiling point 140-200 DEG  C. is treated with 1 per cent of sulphuric acid of 60 DEG  B<\>ae at 20 DEG C.; excess acid is separated, and the product is washed with soda; (2) solvent naphtha is treated with sulphuric acid as above described and then with ferric chloride; (3) heavy benzol is treated as in the preceding example but with the substitution of zinc chloride for the ferric chloride.  Specification 118,079, [Class 2 (iii), Dyes &c.] is referred to.
Patent GB-764179-A (GB)
Title: Improvements relating to food mixers
IPC: A47J43/07
Filed: 1955-02-28
Abstract: 764,179. Food mixers. HOOVER, Ltd. Feb. 28, 1955 [March 2. 1954], No. 5945/55. Class 86 A food mixer includes a high-speed power-driven shaft carrying a mixing element generally in the form of a disc which is formed of a flexible synthetic material and is preformed to a shape having an undulating periphery. As shown, the element 10 is a circular disc blanked from a flexible fabric, preferably a fairly heavy nylon or polyethene fabric. The disc after being blanked is shaped to a shallow U- shape in elevation by the application of heat and pressure. The disc is rotated by a motor in a casing 20 and operates in a receptacle 15 provided with a handle 16 which forms a socket for the reduced end 18 of a handle 19 on the power unit 13.
Patent GB-525571-A (GB)
Title: Improvements in and relating to apparatus and systems for the photographic recordingof sound
IPC: G11B7/00
Filed: 1939-02-23
Abstract: 525,571. Optical sound-recording. KOLB, O.K. Feb. 23, 1939, No. 6014. [Class 40 (ii)] Apparatus for recording "noiseless" pushpull sound records, comprising a light-valve of the kind having two ribbons adapted to vibrate in unison transversely across a light slit, is characterized by the provision of means for passing a unidirectional biassing current, varying in accordance with the envelope of the sound waves to be recorded, through the ribbons in opposite directions. In the apparatus shown. each of the ribbons 3a, 3b, which are located in a magnetic field normal to their plane of vibration, is connected to a separate winding 4a or 4b on a transformer 4, the primary winding 4c of which is fed with audio-currents. A switch 10 is associated with the winding 4b, and with the switch arms on the contacts 10c the phonic currents flow through the ribbons in the same direction, so that the ribbons vibrate so as to move together in the same direction at any moment. Biassing current, varying with the amplitude of the sound to be recorded, is applied by a valve 9 to the ribbons through a switch 11 in order to vary the mean spacing of the ribbons. By changing the setting of this switch, the direction of flow of the biassing current through the ribbons can be reversed. Thus, when the switch arms are in one position, a record such as is shown in Fig. 3a is produced, whereas, with the arms in the other position, a record such as is shown in Fig. 4a, adapted for direct reproduction, is obtained. The switch 10, which is not essential to the invention, enables the apparatus to be used for making noiseless records of the standard type, instead of push-pull records. For this purpose the switch is set with the arms on the contacts 10a, so causing the phonic currents to flow through the ribbons in opposite directions. Specification 377,675 is referred to.
Patent GB-891892-A (GB)
Title: Improvements in or relating to dial switches for use in telephone or like switching systems
Inventor: WHALLEY DAVID HENRY
IPC: H04M1/34
Filed: 1959-02-21
Abstract: 891,892. Impulse transmitters. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Jan. 26, 1960 [Feb. 21, 1959], No. 6044/59. Class 40 (4). In an impulse transmitter having an impulse cam 35 which during setting by a finger plate is moved to a position out of range of impulsing contacts 4 in which position it rotates idly until the finger plate reaches its stop, the angular position the cam adopts at the end of idle rotation depends on the accuracy with which the finger plate is held against the stop and to avoid distortion of the first pulse produced when the cam returns with an inaccurate setting to the impulse contacts means are provided to set the cam in a desirable angular position during its return movement. As shown in Figs. 1 and 3, the cam 35 is pivoted with a pinion wheel 39 on a lug 37 of a plate 38 freely pivoted about the main shaft 3. The pinion wheel 39 meshes with the gear-wheel 23 coupled to shaft 3 and also to a wheel 40 spring coupled to wheel 23 so as to pinch the teeth of pinion 39 and provide light friction. During setting, wheel 23 is driven anti-clockwise, and friction enables the gear-wheel 23 to draw the plate 38 and the impulse cam 35 away from the normal position against stop 44 without rotation of the pinion-wheel 39. When lug 37 reaches stop 33, however, the pinion is driven and rotates the cam idly until the finger wheel is set to the finger stop. The angular position with which the cam comes to rest would be the position with which it returns to the contacts 4 and unless this is the position shown in Fig. 1, a distorted first pulse will be transmitted. To ensure the angular cam setting of Fig. 1, regardless of small errors in setting the finger plate to the stop, as many studs 45, 46, 47 as there are impulse lobes, are raised on the upper face of the cam and these studs co-operate with a spring arm 28 depending from a cantilever arm 31. As seen in Fig. 4 and from the track lines a, b and c, when the dial is set the stud 45 encounters the arm 28 and the cam is turned slightly as the stud passes by. When the dial is set and before release of the finger plate the cam adopts an angular position such as shown in Fig. 6. The studs are indicated as x, y and z, as the particular one in the path of arm 28 will depend on the digit dialled. The stud involved is taken to be x and in Fig. 11 this may occupy a position between the extremes x<SP>1</SP> and x<SP>11</SP> and during return motion of the dial will encounter the arm 28 and will turn the cam 35 into the correct position for delivery to the contacts 4. As it is possible for a stud to be driven against the arm 28 with the cam unable to rotate, the arm 28 is made flexible to provide a retreat from such misuse. Specification 784,351 is referred to.
Patent GB-1268742-A (GB)
Title: Door locking device
IPC: E05B65/32
Filed: 1970-02-09
Abstract: 1,268,742. Latches. AISIN SEIKI K.K. 9 Feb., 1970 [8 Feb., 1969; 19 Feb., 1969], No. 6051/70. Heading E2A. In a car door latch, the rotary latch bolt 2 has an integral pivot pin 2a and a radial slot 2b for engaging the striker pin B2, this slot also being used to engage a locking detent 3 in the lock A. This detent is of cylindrical form having a part 3b cut away and its. cylindrical part turns in a bore in the housing, but the part-cylindrical active end is supported against shock by turning in a hemicylindrical depression 1b. The rotary detent 3 first engages safety latching notch 2c 'and then the main slot, at 2d. The detent 3 is rotated and locked or unlocked by means of a suitable linkage (Figs. 3, 4 and 5, not shown).
Patent GB-726785-A (GB)
Title: Lubricants
IPC: C08F220/18
Filed: 1952-03-10
Abstract: A lubricating oil has incorporated therein from 0.1 to 50 per cent of an oil soluble copolymer the components of which comprise an acrylic or alpha-substituted acrylic ester of a saturated aliphatic alcohol containing at least 8 carbon atoms in the molecule, and an ethylenically unsaturated compound containing a basic tertiary amino group.  The lubricating oil may be either of the hydrocarbon type or the ester type, e.g. di-2-ethylhexyl sebacate.  Copolymer components specified are the n-octyl, 2-ethyl hexyl, n-decyl, 2-butyl octyl, lauryl, tridecyl, tetradecyl, hexadecyl, octadecyl and " Lorol " (Registered Trade Mark) acrylates and lower alkyl substituted acrylates, and as basic tertiary amino compounds 2-vinyl pyridine, 4-vinyl pyridine, 2-methyl-5-vinyl pyridine, 2-ethyl-5-vinyl pyridine, p-dimethylaminoethylstyrene, p - dimethylaminomethylstyrene, and the dimethylaminoethyl, diethylaminoethyl, dimethyl - gamma - aminopropyl, diethyl - gamma - aminopropyl, dibutyl - gamma - aminopropyl, di - (n - butyl) aminoethyl, dicyclohexylaminoethyl, and 2-(diethylamino)acrylates and alpha-hydrocarbon substituted acrylates.  Also present in the copolymers as third components may be N-hydrocarbon substituted acrylamides and alpha-substituted acrylamides such as the N-hexyl, N - decyl, N - tetradecyl, N - octadecyl, N-cyclohexyl, N - phenyl, N - p - tolyl, N - o-tolyl, and N-naphthyl acrylamides and methacrylamides.  The preparation of the copolymers by bulk or mineral oil solution methods is described, employing benzoyl peroxide or alpha, alpha1-azodiisobutyronitrile as catalysts.ALSO:A lubricating oil has incorporated therein from 0.1 to 50 per cent. of an oil soluble copolymer, the components of which comprise an acrylic or alpha-substituted acrylic ester of a saturated aliphatic alcohol containing at least eight carbon atoms in the molecule, and an ethylenically unsaturated compound containing a basic tertiary amino group.  The lubricating oil may be either of the hydrocarbon type or the ester type, e.g. di-2-ethylhexyl sebacate.  Copolymer components specified are the n-octyl, 2-ethyl hexyl, n-decyl, 2-butyl octyl, lauryl, tridecyl, tetradecyl, hexadecyl, octadecyl, and "Lorol" (Registered Trade Mark) acrylates and lower alkyl substituted acrylates, and as basic tertiary amino compounds 2-vinyl pyridine, 4-vinyl pyridine, 2-methyl-5-vinyl pyridine, 2-ethyl-5-vinyl pyridine, p-dimethylaminoethylstyrene, p-dimethylaminomethylstyrene, and the dimethylaminoethyl, diethylaminoethyl, dimethyl - gamma - aminopropyl, diethyl - gamma - aminopropyl, dibutyl-gamma-aminopropyl, di-(n-butyl) aminoethyl, dicyclohexylaminoethyl, and 2-(diethylamino) acrylates and alpha-hydrocarbon substituted acrylates.  Also in the copolymers as third components may be N-hydrocarbon substituted acrylamides and alpha-substituted acrylamides, such as the N-hexyl, N-decyl, N-tetradecyl, N-octadecyl, N-cyclohexyl, N-phenyl, N-p-tolyl, N-o-tolyl, and N-naphthyl acrylamides and methacrylamides.
Patent GB-1533611-A (GB)
Title: Telecommunication systems
IPC: H04Q11/04
Filed: 1976-02-17
Abstract: The use of the telecommunications system is extended by providing switching devices of this system with single modules which can be used as multiplexers or concentrators. They can be accommodated in the exchange itself, at a point which is connected by a time division multiplex connection path to the exchange or in the subscriber equipment. The role of each module is to allocate time division multiplex channels to calling lines and then to enable access to the selected channel. This is done by counting a preset counter back to zero. <IMAGE>
Patent GB-374031-A (GB)
Title: Method of firing steam boilers with gaseous, liquid or pulverulent fuel
IPC: F23C3/00
Filed: 1931-02-27
Abstract: 374,031. Internal flues of steam boilers. JEZLER, H., 10, Stockerstrasse, Z³rich, Switzerland. Feb. 27, 1931, No. 6234. Convention date, March 5, 1930. [Class 123 (ii).] In an internally-fired steam boiler gaseous, liquid, or pulverulent fuel is introduced tangentially at high speed by a burner 5 into a combustion space 3 of cylindrical form having heat transmitting walls within the boiler so that rotary motion is imparted to it in this space and the flame passes through a constriction 10 and travels in a helical path through a flame tube 2. The burner 5 projects into a combustion air inlet 4, and tangential inlets 6, 7 are provided for auxiliary air and steam respectively, to assist combustion and form a protective fluid layer for the walls of the combustion space. The flame tube may be widened as indicated at 9, and the combustion space may be lined with refractory heat transmitting material such as carborundum, or with fire resisting metal. Reference has been directed by the Comptroller to Specifications 5218/04, [Class 123, Steam generators], and 289,930, [Class 51 (i), Furnaces and kilns, Combustion apparatus of].
Patent GB-1561227-A (GB)
Title: Dental handpiece
IPC: A61C1/08
Filed: 1977-02-15
Abstract: It has a drive part (1) which can be connected via a connection armature (2) to a supply pipe (3) and in which a drive motor is arranged. A grip part (5) can be coupled to the drive part (1) and can be turned relative to the latter, which grip part has at its free end a head part (6) with a tool (7). In order to transfer a coolant from the supply pipe (3) to the head part (6) of the handpiece, corresponding coolant conduit sections (30, 24) are present in the said handpiece parts. An intermediate piece (4) can additionally be introduced between drive part (1) and grip part (5), which intermediate piece (4) can be coupled to one of the two handpiece parts (1, 5) in such a way that it cannot be turned and it can be coupled to the other handpiece part in such a way that it can be turned, and it has a further conduit section (11) for the coolant, and coupling members (10, 29) which, in the coupled state, engage in matching counter-members (9, 26) of the drive part (1) or the connection armature (2) on the one hand and of the grip part (5) on the other hand and connect the coolant conduit sections (30, 28, 27) of drive part (1) or connection armature (2) and grip part (5) to one another. The invention is proposed in particular for dental handpieces with a miniature motorized drive in the handpiece. <IMAGE>
Patent GB-1426871-A (GB)
Title: Voltage peak detectors
IPC: H03F3/34
Filed: 1972-02-10
Abstract: 1426871 Peak voltage detector IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 29 Jan 1973 [10 Feb 1972] 6358/72 Heading G1U A peak voltage detector circuit for detecting the largest pulse in a burst of pulses comprises two matched source connected field-effect transistor 1, 2 driving two matched emitter connected transistors 3, 4 in response to pulses at the gate of field-effect transistor 1, the current from the transistor 3 being applied to the gate of the field-effect transistor 2 and a capacitor 5 with output amplifier 55 via a diode 40. Any pulse may be selected by operating switch 61 to shunt all the current of transistor 3 to earth heatage through the reverse biased diode 46 reduces the capacitor charge between bursts of pulses so it can take the value of the desired pulse each time. The transistors 3, 4 may be fed from appropriately connected matched NPN or PNP transistors connected between the drains of the field effect transistors and then bases. Figs. 2 and 4 (not shown). The diode 41 may be replaced by the base-emitter junction of a transistor (85), Fig. 5 (not shown).
Patent GB-415776-A (GB)
Title: Improvements in the suction nozzles of vacuum cleaning apparatus
IPC: A47L9/06
Filed: 1933-03-02
Abstract: 415,776. Vacuum - cleaner nozzles. McCARDLE, L. F., Welbeck House, Durweston Mews, Crawford Street, London. March 2, 1933, No. 6391. [Class 8 (i).] A vacuum cleaner suction nozzle is formed in two parts relatively movable, each part forming an effective nozzle. The outer nozzle a has a central recess in which a hollow block h forming an inner nozzle can slide vertically. Springs surrounding rods n on the inner nozzle normally hold this nozzle off the floor, but it can be pressed down on the floor by pressure on the handle g. The inner nozzle carries a brush x, and the outer nozzle has a slot w providing an air jet which assists in cleaning the floor, and in keeping the brush clean.
Patent GB-556561-A (GB)
Title: Improvements in, or relating to, gaseous atmospheres for use in connection with the heat treatment of materials
IPC: C22C33/02
Filed: 1942-05-12
Abstract: 556,561. Furnace atmospheres. BIRMING- HAM ELECTRIC FURNACES, Ltd., and HANCOCK, P. F. May 12, 1942, No. 6394. [Classes 51 (ii) and 55 (ii)] A gaseous atmosphere for use in the heat treatment of powdered iron or iron alloys having a carbon content which it is desired to maintain constant during heat treatment comprises a mixture of gas having a mild decarburizing action at the treatment temperature, such as charcoal producer gas, with a gas having a mild carburizing action at the treatment temperature, such as coal gas, coke oven gas or other hydrocarbon-containing fuel gas. The proportions of the gases in the mixture are so controlled that the mixture has neither a decarburizing or a carburizing action on the material under treatment.
Patent GB-452795-A (GB)
Title: Improved rotary pneumatic valve for sheet feeding mechanism
IPC: B65H3/08
Filed: 1935-02-28
Abstract: 452,795. Feeding sheets. LINOTYPE & MACHINERY, Ltd., 9, Kingsway, London, and ROWLANDS, T., 24, Oakleigh Avenue, Timperley, Cheshire. Feb. 28, 1935, No. 6426. [Class 100 (i)] A rotary valve for use in connection with sheet-feeding apparatus for printing-machines is formed of a stationary casing 1 fitted with end-plates 3, 4, secured in position by screws 5, and a rotary valve 8 mounted on a shaft 6 and formed with a radial passage 23, a transverse passage 24, and two peripheral grooves 21, 22 extending partially around the periphery of the valve 8 and in alignment with ports 17, 18 adapted to connect with air blast devices used in connection with a sheet-separating device. The end-plates 3, is formed with an annular groove 9 connected by a port with the suction side of an air pump, and the plate 4 is formed with arcuate grooves 11, 12 having connection with ports 13, 14 connected respectively to a sheet-forwarding and a sheet separating suction device. Rotation of the valve causes the transverse passage 24 to connect the annular groove 9 alternately to the grooves 11, 12, and thus to connect the ports 13, 14 alternately to the suction side of the pneumatic system. A radial groove 23 in the valve connects the grooves 11, 12 to atmosphere after the suction devices connected with them have operated. The pressure side of the pneumatic system is connected to a chamber 19 integral with the valve casing 1, and the peripheral grooves 21, 22 in the valve connect the compressed air alternately to ports 17, 18 connected to blast devices arranged in connection with a blower foot and a front blower respectively.
Patent GB-100651-A (GB)
Title: Improvements in and connected with Belt Fastenings.
Inventor: DEHN FRANK BERNHARD
IPC: F16G3/04
Filed: 1916-05-05
Abstract: 100,651. Dehn, F. B., (Clipper Belt Lacer Co.). May 5, 1916. Belt fastenings. - In a fastening for driving-belts, consisting of rows of staples secured to the belt ends and connected by a transverse pin 14, each staple has two bent prongs with barbs or shoulders 7, 11 to fix them securely in the material of the belt.