baber/WOPTO huggingface dataset:
Patent GB-526049-A (GB)
Title: Improvements in and relating to automatic firearms
IPC: F41A3/78
Filed: 1939-03-07
Abstract: 526,049. Automatic guns. GAZDA, A. March 7, 1939, No. 7368. Convention date, Aug. 19, 1938. [Class 92 (ii)] Relates to automatic guns of the mass-locked type in which there is no positive lock the breech bolt c<SP>4</SP> being directly operated by the gun gases. According to the invention, the effect of mass-locking is assisted by at least one flat spiral spring h' urging the breech block forwards the spring or each spring being stressed by a rack g<SP>1</SP> on the breech block engaging a pinion e<SP>1</SP> on the barrel of the spring. The breech block is retained in the rear loading position by a releasable catch i.
Patent GB-462496-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B11/18
Filed: 1936-03-11
Abstract: 462,496. Cables. SOC. ANON. ING. V. TEDESCHI & CO. March 11, 1936, No. 7408. Convention date, April 19, 1935. [Class 36] In manufacturing an air-space insulated cable comprising an inner conductor spaced from an outer sheath and centred within it by means including a substantially tubular body of insulating material which is originally plastic and can be altered in its shape and afterwards set to maintain an air space around the conductor, the tube of plastic material is placed concentrically around the conductor and constricted thereon helically or at intervals or the plastic tube is wound helically upon the conductor, and then enclosed within the outer sheath, after which the plastic tube is inflated with gas under pressure, set by a known process, and the gas pressure released. The insulating material employed for the plastic tube consists, preferably, of unvulcanized rubber, which is subsequently set by vulcanization, or alternatively synthetic rubber or a composition of cellulose. Fig. 1 shows the conductor 1 surrounded by the tubular body of insulating material 2 which has an outer diameter considerably smaller than that of the sheath 4, and is bound to the conductor by means of a ligature 3 wound helically. The material of the ligature may consist of rubber cord. Gas under pressure is forced into the tubular body, between it and the conductor, or through the conductor 'itself when this is of stranded construction, causing the tubular body to expand, between the threads of the ligature, until it presses strongly against the inner wall of the sheath. The tubular body is next set in the shape thus assumed, after which the gas pressure is released. Fig. 6 shows a set tubular body 21 of previously plastic material, wrappedhelically around the conductor 1. The tube 21 is of small bore and has thick walls which expand outwardly and press against both the conductor 1 and the inner wall of the sheath 4 when gas under pressure is forced into the tube. The pressure is released after setting the tube 21 in its expanded position. Specification 430,581 is referred to.
Patent GB-165440-A (GB)
Title: An improved box
IPC: B65D43/02
Filed: 1921-03-08
Abstract: 165,440. Quittmann, P. June 22, 1920, [Convention date]. Specially - shaped boxes : lids.-The axis of a box a for boot-polish &c. is inclined to the plane through the edges c of the opening so that the lid b may be opened or closed in a hingelike manner although an actual hinge is not used. The box can be opened only at the side I by pressure in the direction of the arrow, the lid hingeing around the point 2, 3 of the lid and body. In a modification the lid telescopes within the body. A guiding-groove and rib may be provided on the lid and body to facilitate the pushing on of the lid and a snap fastening or other locking-means may be provided.
Patent GB-718699-A (GB)
Title: Multiple purpose machine tools
IPC: B23Q39/02
Filed: 1951-03-30
Abstract: 718,699. Grinding; sawing; planing. HOBBS, G. B. March 31, 1952, [March 30, 1951.] No. 7436/51. Classes 60, 145 (1) and 145 (2). A multiple machine-tool comprises a portable support 9, Fig. 1, attached to the housing 3 of an electric motor 1, a disc 13 rotatable about a horizontal axis on the support 9, and several machine-tools mounted on the disc and having their own worktables or other accessories, wherein each tool can be brought into position for use and into driving connection with the common driving motor 1 and locked in that position. A sanding disc 17, Fig. 2, a jig-saw 14, a circular saw 15, and a planing tool 16 or a grinding wheel may be supported on the disc which is rotatable on a shaft 11, Fig. 1, fixed in the support 9 and has a spring-pressed pin 28 to engage pockets 29 in the support after indexing. One or more pinions 21, 22, on the spindle 6 of the motor, drive pinions 23, 24 on the tool-shafts 46, 16 which may be arranged at different distances from the shaft 11 and lubricated through passages 27 in the wall 25 of the disc or, if the bearing 19 of the tool-spindle 16 is integral with the frame of the particular machine, in the bearing only. The support 9 is spigoted on the housing 3 by a ring 7, which is divided to ventilate the motor. A work-bench 31, Fig. 2, for the saw 15 is secured adjustably to the disc 13 and may be moved outwardly to guard the edge of the saw. An adjustable fence 36 is provided and may also be used for the planing tool 16. The jig-saw blade is reciprocated by a crank-disc 45 and spring-pressure. A chuck, buffing disc or the like, or a pulley for driving other tools, may be provided on that end of the shaft 6 remote from the support 9. The Provisional Specification describes also the use of a lay-shaft to rotate the tool shafts which are indexed into alignment therewith and coupled by an Oldham coupling, the disc having a small amount of axial freedom to facilitate coupling.
Patent GB-424455-A (GB)
Title: Improvements in or relating to high frequency electrical oscillation generators, radio transmitters and the like
IPC: H03B5/18
Filed: 1934-03-08
Abstract: 424,455. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Renatus, G. ; 32, Bienertstrasse, Dresden, Germany) March 8, 1934, No. 7443. Convention date, April 4, 1933. [Class 40 (v)] A high-power short-wave transmitter or generator comprises a number of valves placed half a wave-length apart along a pair of leads, which are connected by coupling reactances at points midway between the valves. As shown, the leads are connected to the anodes A and grids G of the several valves, and the coupling reactances are in the form of condensers Cl, connected between the anode A of one valve and the grid G of the next. All the anodes A are connected to each other conductively, for the supply of direct current, as are also all the grids G. The cross-connections required for this purpose are capacitycoupled at C2. The valves may be arranged to oscillate by the Barkhausen-Kurz connection. The leads may be bent into a circle. Specification 261,350, [Class 40 (v)], is referred to.
Patent GB-697958-A (GB)
Title: An improved fuel-feed regulator for gravity fed furnaces
IPC: F23K3/06
Filed: 1950-03-24
Abstract: 697,958. Boiler furnaces. BURNAY, G. March 24, 1950 [March 30, 1949], No. 7470/50. Class 51(i) In a gravity-fed boiler furnace, a plate 5 forming part of the base of a magazine 1 and part of the ceiling of a combustion chamber 2 is formed with a series of orifices 7 for the control of the descent of the fuel, said orifices being located in front of the inlets 41 of the waste gases flues. A slide member provided with similar orifices may be fitted above the plate 5, Figs. 5-7 (not shown), and the said plate may be associated with secondary air supply ducts, Fig. 8 (not shown).
Patent GB-929900-A (GB)
Title: Method of producing concentrated polyphosphoric acids
IPC: C01B25/24
Filed: 1961-03-01
Abstract: Polyphosphoric acids of high concentration are produced by burning phosphorus with air and/or other gases containing free oxygen and absorbing the phosphorus pentoxide produced in polyphosphoric acids of lower concentration wherein the phosphorus pentoxide containing stream of gas obtained in the combustion zone of a partially funnel shaped reactor flows to an absorption zone, a film of the lower concentration acid flows down the walls of the reaction chamber, part of this acid is deflected from the walls and atomized into particles having a higher velocity than the phosphorus pentoxide stream, the high concentration acid is extracted from the bottom of the chamber, part being diluted with water and/or orthophosphoric acid and recycled.  Phosphorus is led from tank 9 through pump 10 to burner 5 where it is mixed with oxygen containing gases led in through inlet 12.  Water or orthophosphoric acid is led in through inlets 14 and 13 and is atomized by rotating atomizer 6 so as to produce an unbroken film which flows down the walls of combustion zone 3.  The film is deflected by baffles 7 which guide the acid on to atomizers 8 which form particles having a higher velocity than the stream of phosphorus pentoxide, (ratio greater than 2:1, preferably 10:1), the particles flowing in a direction between transverse to and opposite to the flow of phosphorus pentoxide.  Higher polyphosphoric acids are collected in tank 4, led to <PICT:0929900/III/1> storage tank 21, and then led away through pipe 24.  Exhaust gases are withdrawn through pipe 15 to droplet separator 16 and the droplets are then led to tank 21.  Part of the acid from tank 21 is recirculated via heat exchanger 25, back to rotating atomizer 6.  The walls of the tower may be of acid proof steel.
Patent GB-186559-A (GB)
Title: Improvements relating to centrifugal lubricators
IPC: F16N9/02
Filed: 1922-03-15
Abstract: 186,559. Goldsbrough, R. E., Crute, C., Wayman, C. P., and Robbins, A. G., (trading as Goldsbrough Patents Co.). March 15, 1922. Centrifugal-action lubricators.-A centrifugally operated lubricator for loose pulleys comprises a cylinder a, secured to the hub h by a screwed nipple g, and a piston d, with a rod f protruding through the cylinder cover e. A lever m, pivoted at k to a support j secured to the cylinder-cover e, has a weight p at one end. When the pulley rotates, the centrifugal force acting on the weight p is transmitted by the lever m to the piston-rod and tends to force the piston d into the cylinder a so that lubricant passes into the bearing. The position of the lever m indicates the amount of lubricant in the cylinder. The edge r of the lever m is curved so that the pressure applied to the top of the piston-rod is always axial. The lubricator is also suitable for hollow shafts &c.
Patent GB-538934-A (GB)
Title: Improvements in the method and apparatus for the manufacture of soap flakes
IPC: C11D13/20
Filed: 1940-04-29
Abstract: 538,934. Soap flakes. LEVER BROS. & UNILEVER, Ltd., and PENNY, T. April 29, 1940, No. 7603. [Class 91] Soap flakes are rendered giossy and transparent by exposing them for a short time to the action of steam and then passing them through a drying zone. The flakes fed to a hopper 10 containing breaker rolls 11 pass down an open shoot 13 and fall through a steaming chamber 15 and then down a tower 16 where they are dried by an ascending current of hot air. Steam, supplied to the chamber 15 by perforated pipes 22, passes through wire-mesh side wall 24 and is withdrawn together with hot air from the tower through exhaust ducts 35. Air at about 35-40‹C. is supplied to the base of the tower by a fan 28 and electric heater 30.
Patent GB-577196-A (GB)
Title: Improvements in and relating to fume condensation
IPC: B01D47/10
Filed: 1944-04-24
Abstract: 577,196. Treating fumes with liquids and steam. YOUNGHUSBAND, BARNES, & CO., Ltd., and MUNDY, C. W. A. April 24, 1944, No. 7609. [Class 55 (ii)] Fumes from a vessel a for the heat treatment of drying oils are drawn through a fume duct b by a steam ejector c cooled by mains water from a pipe e, and pass through an outlet h to a secondary ejector i fed from a pump l with scrubbing oil from a baffled tank k to which they are discharged through pipe j. The fume condensate drawn off is used as fuel. Another apparatus employs another scrubbing oil ejector instead of the steam ejector and in a third an electric fan is used as the primary extractor. The scrubbing oil may include neutralizing, frothing or wetting agents or other liquids.
Patent GB-1365073-A (GB)
Title: Electric switches
IPC: H01H23/16
Filed: 1971-03-20
Abstract: 1365073 Mechanical switches JOSEPH LUCAS (INDUSTRIES) Ltd 10 March 1972 [20 March 1971] 7629/71 Heading H1N In an electric switch having an actuator such as a toggle lever 26, Fig. 1, movable to three positions, a contact arm 14 has spaced integral flanges 17a, 18a about which it pivots to move one or other of contacts 15, 16 at opposite ends of said arm 14 into engagement with fixed contacts 25 or 13 on the body 11. The arm 14 has pairs of integral triangular flanges 17a, 18a, Fig. 3, to form the pivots and has a central depression 19 for engagement by a spring-pressed plunger 24 on the lever 26 to retain the assembly in a detented central position. Projections 20 on each side of the arm 14 between the flanges 17a, 18a extend between projections 21 on the switch housing whereby longitudinal movement of the arm 14 is prevented. The lever 26 comprises a pair of arms 22 pivoted at 23 on the body 11 and may carry a pair of plungers 24 for engagement with a pair of parallel contact arms 14. In a modification the contact arm flanges (33, 34), Fig. 5 (not shown), may be rounded and the actuation lever may have a rigid projection (43), Fig. 4 (not shown), which engages a bowed leaf-spring (39) extending along the length of the contact arm to which it is fixed at each end. The bowed spring may also have central detent to locate the actuator lever (38) in its central position.
Patent GB-290005-A (GB)
Title: Improvements in apparatus for cleaning and opening cotton waste or like fibrous material
IPC: D01G9/08
Filed: 1927-03-19
Abstract: 290,005. Greenhalgh, R., and Greenhalgh, J. March 19, 1927. Openers, cleaners &c. - In a machine of the kind described in Specifications 916/15, 7137/15, 200,717, and 217,476, for cleaning and opening cotton waste or the like, the fibre acted on by the licker-in is blown by a contrivance extending across the full width of the licker-in and projected into a conveying shoot leading to dust cages or to a compartment or other connected machine. A fan e, Fig. 1, is arranged in a casing d having an opening extending across the licker-in c. The blades of the fan just clear the teeth of the lickerin or may exert a stripping action. The casing d is combined with the shoot f. A fan h operates in connection with the cage g, and the shoot may be provided with vertical partitions. The fan e may be located at the side of the machine and the air blast be delivered through a duct to a series of closely pitched nozzles or to a conduit with a slit extending across the licker-in.
Patent GB-727151-A (GB)
Title: Improvements in derivatives of pyrimidine and methods of making the same
IPC: B23B29/034
Filed: 1952-03-25
Abstract: The invention comprises compounds of the general formula <FORM:0727151/IV (b)/1> wherein R1 and R2 are alkyl radicals, of 1 to 3 carbon atoms, which may join to form with the N atom a heterocyclic radical, R3 is an alkyl radical of 1 to 3 carbon atoms or an aralkyl group which may be halogen-substituted, and X and Y are separately hydrogen or halogen, and acid addition salts thereof.  They may be prepared by reacting a b -alkoxy-a -phenylacrylonitrile with an unsymmetrically disubstituted guanidine.  In the examples: (1) a -propionyl - p - chlorophenylacetonitrile is reacted with diazomethane and the resulting a ,p-chlorophenyl-b -methoxy-b -ethyl-acrylonitrile is reacted p  in ethanol with a solution of N-dimethyl guanidine prepared from the sulphate and sodium ethoxide. 2 - Dimethylamino - 4 - amino - 5 - p - chlorophenyl - 6 - ethyl pyrimidine is precipitated. (2) N-pentamethylene-guanidine, prepared as the hydrobromide from piperidine and S-ethylthiouronium bromide, is reacted with a -p-chlorophenyl-b -methoxy-b -ethylacrylonitrile to give 2-pentamethyleneamino - 4 - amino - 5 - p - chlorophenyl - 6 - ethyl pyrimidine.  Also prepared are 2-(1-morpholino) - 4 - amino - 5 - p - chlorophenyl - 6 - ethyl pyrimidine; 2 - dimethylamino - 4 - amino - 5 - (3,4 - dichlorophenyl) - 6 - ethyl - and -6-methyl-pyrimidine.  Specification 715,813 is referred to.
Patent GB-1439581-A (GB)
Title: Method and machine for packaging material
IPC: B65B1/28
Filed: 1974-02-20
Abstract: 1439581 Bag filling apparatus BORACIER SA 20 Feb 1974 [2 March 1973] 7671/74 Heading B8C [Also in Division B5] A machine for packaging material having a low mesh size comprises a basket 27 for supporting the bag during filling, means 92 for imparting a vibratory movement to the basket, a first chamber 15 for the material to be packaged having a discharge pipe 18 leading into a second chamber 13 provided with a door 20 for introduction of the basket, means for maintaining a high vacuum in the first chamber and then in both chambers, and heads 82 for sealing the bag neck in the second chamber. Bags are manually moved from a supply chain 1 to a tube 7 which has a seal which inflates to grip the bag. The tube fully inflates the bag and lowers it into the basket 27 which is secured to the door 20. Pivotally mounted arms on the door carry semicircular ribs which are lowered into the bag neck which is gripped between the ribs and exterior inflatable seals. The second chamber 13 has a jack to move a wall 29 to close the side of the basket. The end of the discharge pipe is lowered into the bag neck and a valve is opened connecting the second chamber to the evacuated first chamber 15 which contains a funnel connected to a weighing machine and into which funnel material from a shoot 61 has fallen. After the material has been degassed it falls through the discharge pipe into the bag. As the pipe is lifted hooks (72, Fig. 5, not shown) engage opposed points of the bag neck to pull them apart and thus flatten the bag neck for sealing by the heads 82. The heads have bag engaging surfaces (88, Fig. 7, not shown) of PTFE filled with bronze and of respectively male and female contour (Fig. 8, not shown). After the door 20 is opened, a suction plate 28 rotatably carried on a longitudinally movable support 97 pulls the sealed bag from the basket. The machine may be a duplex machine having two first chambers 13, 14 side-by-side connected by a pipe 56, and working 180 degrees out of phase so that when one chamber is ready to be evacuated and the other chamber is ready to be returned to atmospheric pressure a valve 57 is opened to equalize pressures.
Patent GB-1128436-A (GB)
Title: Improvements in or relating to electrical contact assemblies
IPC: H01H1/58
Filed: 1967-02-17
Abstract: 1,128,436. Switch contacts. MURRAY MFG. CORP. 17 Feb., 1967 [6 July, 1966], No. 7695/67. Heading H1N. A terminal contact clip 34, Fig. 1, for an electric switch, meter or fuse cartridge is mounted on the overhung edge 15 of a base 10 and comprises a "J" shaped clamp located in horizontal and vertical grooves 18, 21 of the base and retained by engagement of an upturned lug 30 in a recess 23. The clamp 25 is closed by a screw 31 which may also clamp the terminal wires. The contact 34 is bent up to form opposed clamping faces 38 for a contact of a blade switch, meter or fuse and may be integral with the terminal 25 or attached by screw 40.
Patent GB-1317537-A (GB)
Title: Milk processing apparatus
IPC: A23P30/40
Filed: 1972-02-18
Abstract: 1317537 Foamed milk products; yoghourt COMPAGNIE GERVAIS-DANONE 18 Feb 1972 [19 Feb 1971] 7707/72 Heading A2B [Also in Division B1] Food products, such as stabiliser-containing milk products, are foamed by heating the product, and pumping it through a pipe while injecting a gas into the flow in the pipe, the mixture passing through means for mixing and cooling the gas and the product, the pressure difference between the exit of the mixing and cooling means and the point upstream of the gas injection point being maintained substantially constant. An apparatus comprises a store for the hot product, a high pressure pump therefor, a gas injection nozzle located downstream of the pump, the gas being injected at a pressure higher than that of the product, means for mixing the gas and the product and for refrigerating the mixture, a back-pressure valve being located downstream of the mixing means and controlled by a pressure detector upstream of the gas injection nozzle and the mixing means.
Patent GB-807812-A (GB)
Title: Improvements in or relating to the automatic defrosting of refrigeration apparatus
IPC: F25D21/00
Filed: 1957-03-08
Abstract: 807,812. Refrigerating. HERON, A. G. March 8, 1957, No. 7714/57. Class 29 Defrosting by an electric heater 15 is initiated by a time switch 10 driven by a high impedance motor 12 operating only during periods of refrigeration and defrosting. The time switch arm 10 is connected to a positive source P. One contact 17 is connected to earth N through a thermostat 18 and the compressor motor 19. The other contact 20 is connected on one side to earth through the high impedance motor 12, the contact of thermostat 18 remote from contact 17 and the compressor motor 19, and on the other side to earth through normally closed thermostats 13, 14, responsive to evaporator temperature and pressure respectively, and the heater 15. The impedances of the heater and compressor motor are small compared with that of the timer motor. During normal refrigeration the switch arm is at contact 17 and the compressor motor is cycled by the thermostat 18. When this is closed current flows through the contact remote from contact 17 through the motor 12 and the heater 15, but owing to the high impedance of the motor the potential drop across the heater is insufficient for it to operate. When switch 18 is open both compressor and timer motors are inoperative. On defrosting the switch arm is at contact 20 and the timer motor and heater are in parallel, while the compressor motor is in series with the timer motor and thus inoperative. A fan 19a is connected in the circuit.
Patent GB-915367-A (GB)
Title: Improvements in or relating to loudspeaker systems
IPC: H04R1/28
Filed: 1960-03-04
Abstract: 915,367. Loud-speaker systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 4, 1960 [March 7, 1959], No. 7760/60. Class 40 (4). A loud-speaker 1 is mounted in a closed cabinet 3 in which a slack diaphragm 4 separates the air space 5 from a space 6 containing a liquid, such as pentane, in a container 7 and its saturated vapour, and a heat-exchanger 8 in contact with the vapour. The liquid is such that its boiling point under the prevailing atmospheric pressure is equal to or higher than the highest ambient temperature in which the loud-speaker is to operate. A heater 9 associated with a control system (not shown) maintains the temperature of the space 6 such that the pressure of the vapour is approximately equal to atmospheric pressure. The heatexchanger 8 has such a large thermal capacity and such a large surface area that volume variations of the space 6 produced by movements of the loud-speaker diaphragm at frequencies of 50 c.p.s. or less take place isothermally, so that the vapour pressure remains constant and the stiffness of the closed cabinet 3 corresponds to that of a very large air volume. U.S.A. Specification 2,115,129 is referred to.