baber/WOPTO huggingface dataset:
Patent GB-916836-A (GB)
Title: Improvements in or relating to silencers for internal combustion engines
IPC: F01N1/06
Filed: 1961-06-27
Abstract: 916,836. Exhaust silencers. HOUSE, J. I., and WARD, L. G. June 27, 1961 [June 28, 1960], No. 23177/61. Class 7(2) In an exhaust gas silencer in which a collar 20, Fig. 1 is slidably mounted on an inlet tube 14, a helical spring 19 with closed convolutions is connected at one end to the collar and is closed at the other end which is restrained from axial movement so that the exhaust gases can open and pass through the spring convolutions. Exhaust gas enters chamber 21 and is deflected through 180 degrees by end plate 17. Increase of gas pressure moves collar 20 leftwards to open the spring convolutions to allow gas to pass through chamber 22, openings 23, 25 and tube 15. Continuous movement of spring 19 prevents carbon build-up. In a modification, the baffle plate 27 is removed and tube 15 is replaced by an open helical spring or in a further modification, Fig. 6, only an outlet tube 55 is provided. In another embodiment, an elliptical casing 70, Fig. 8, encloses a pair of springs 79, 80, co-operating with a forked inlet. In all embodiments the cross-sectional area enclosed by the spring, the cross-sectional area between convolutions of the extended spring, the area of openings in the transverse baffle and outlet tube are greater than the flow crosssection of the inlet tube and the bore of the inlet and outlet tubes are substatially the same.
Patent GB-480696-A (GB)
Title: Improvements in hair curler
IPC: A45D2/18
Filed: 1936-08-25
Abstract: 480,696. Hair curling appliances. HUPPERT, W. Aug. 25, 1936, No. 23343. Convention date, May 26. [Class 131] A hair-curler comprises a flexible tube 10, e.g. of rubber, a number of flexible wire arms 13, 14, 15 disposed within the bore of the tube and extending outwardly therefrom and a clasp 16 binding the wire arms together, the clasp being fastened to the tube. The wire is preferably covered and may be in a single or in separate lengths. The clasp 16 is secured to the tube by a rivet or'eyelet passing through an eye 17 and through one of the ventilating perforation in the tube. The loop 15 which is longer than the other two is bent across to hold the end of the hair, and when the hair has been completely wound, the loops 13, 14 are bent over to secure the curler in position. In a modification, the loop 15 projects through a slot in the tube.
Patent GB-298337-A (GB)
Title: Method of and means for regulating or governing the consistency of "stuff" to paper making machines
IPC: D21F1/08
Filed: 1927-09-06
Abstract: 298,337. Arnot, J. Sept. 6, 1927. Pulp, regulating flow and consistency of.-The consistency of the " stuff " used for paper making is regulated or governed by apparatus comprising a control valve b<2>, which may be of conical formation, carried by a float vessel c within a float vessel c<1> which floats in a float box d supplied with water by a pipe d2 and provided with an overflow in order to maintain a constant level. The stuff from a stuff box a flows by a conduit b to a housing b' for the valve b<2> and as the vessel c fills it sinks with the vessel c<1> until the valve b<2> is closed. The stuff flows continuously from the vessel c through a regulatable outlet c<8> to the paper machine, the outlet being set to supply the required quantity of stuff for the particular paper being made. If the density of the stuff increases, the vessel c sinks more quickly and the valve b<2> closes with a reduced head of stuff for the outlet c<8> thus reducing the supply to the machine. A thinning of the stuff increases the head and the supply. The weight of the vessel c is partly taken by a spring balance, the movement of the pointer of which thus facilitates the controlling of the apparatus.
Patent GB-965699-A (GB)
Title: Digital speech transfer system
Inventor: HEATON PETER
IPC: H04J3/06
Filed: 1961-06-28
Abstract: 965,699. Pulse code modulation. MINISTER OF AVIATION. June 21, 1962 [June 28, 1961], No. 23381/61. Heading H4L. In a digital signal transfer arrangement for an intermediate station in a multi-channel pulse code modulation communication system in which the timing of each transmitter is only approximately in synchronism, the non-synchronous transfer of information between receiver and transmitter takes place via a receive store and a transmit store and means are provided for preventing interrogation of the receive store and transfer of its stored information to the transmit store during the period information is being read into the receive store. The receive signal for each channel, received every 140 Á secs. from a de-multiplexer 1, comprises five binary information digits followed by a synchronizing signal and each signal is applied to a delay line D1 of such delay that when the synchronizing signal operates a detector circuit 3 to produce a pulse 2(a) for opening gates G1-G5, the five digit signals are present at tapping points P1-P5 and are transferred to a receive store comprising trigger circuits T1-T5. The output of the detector is also applied via a delay circuit B1 to a pulse generator E1 which generates a guard pulse 2(b) which extends 23.5 Á secs. each side of the following detector pulse. The guard pulse is applied as one input to an AND circuit 96 controlling a trigger circuit T6 which provides an output 2(f) for determining which of a pair of gates G7, G8 is open. Transmitter multiplexer 4 supplies a train of pulses 2(c), approximately 140 Á secs. apart, which are applied to gate G7, a train of pulses ( 2d) which occur exactly midway between pulses 2C and are applied to gate G8 and a train of pulses 2 (e) which occur exactly midway between each pulse 2(d) and a following pulse 2(c). Depending on which gate G7, G8 is open, either pulse 2(c) or 2(d) is applied to interrogate receive store T1-T5. On interrogation the contents of the store is transferred to transmit store TM1- TM5 and the receive store is returned to its initial state to receive the following receive signal. The elements of transmit store TM1- are connected via AND gates G01-G05 to the stages of a shift register SR and immediately prior to the generation of a pulse 2(e) the multiplexer 4 applies a signal to the gates to read the information in the store into the shift register. The pulse 2(e) then returns the transmit store to its initial state and a series of five pulses are generated by the multiplexer to shift the contents of the register into the multiplexer in correct sequence. When, e.g. gate G8 is open and transfer from receive to transmit store is controlled by the pulses of train 2(d) and one of the pulses occurs during the occurrence of a guard pulse 2(b), AND circuit G6 is operated, whereby trigger circuit T6 closes gate G8 and opens gate G7 so that subsequent transfer is controlled by pulse train 2(c).
Patent GB-1004328-A (GB)
Title: Improvements in and relating to the refinement of hydrocarbons
Inventor: BLUNSDEN ARCHIBALD BERESFORD
IPC: C10G17/06
Filed: 1961-06-29
Abstract: Coal tar hydrocarbons are purified by contact in the liquid phase with sulphuric acid oleum or sulphur trioxide containing hexamine or urea. Benzene is freed from thiophen and naphthalene from thionaphthene and benzole or naphtha of coal tar origin may be freed of sulphur compounds. The amount of urea of hexamine may be 0.1-10 grams per 100 ccs. using 90-100% sulphuric acid.
Patent GB-1381686-A (GB)
Title: Electron beam heating system
IPC: H05B7/00
Filed: 1973-05-17
Abstract: 1381686 Electron beam apparatus AIRCO Inc 17 May 1973 [26 May 1972] 23549/73 Heading H1D An electron gun in an electron beam furnace comprises a focusing electrode 11 in which there is a channel 12, at least one accelerating electrode 14 of a positive potential relative to electrode 11, and from four to eight elongated filaments 16 of thermionically emissive material, the filaments being mutually parallel and supported in the channel 12.
Patent GB-1036440-A (GB)
Title: Mineral mining installations
Inventor: DAWSON GORDON BERTRAM
IPC: E21C27/02
Filed: 1962-06-19
Abstract: 1,036,440. Mineral-mining installations. COAL INDUSTRY (PATENTS) Ltd. June 14, 1963 [June 9, 1962], No. 23573/62. Heading E1F. An inclined ramp plate secured to the face side of an articulated face conveyer of a longwall, mineral-mining installation serves, as the conveyer is continuously pressed towards a mineral face being mined, to limit the cut of the rotary cutter head of a cutter machine mounted on for movement along the conveyer to a thin slice and to load on to the conveyer any mineral left behind the cutter head between the conveyer and the newly exposed face. The cutter head preferably comprises a radially extending arm with one or more picks provided at the outer end of the arm.
Patent GB-902621-A (GB)
Title: Improvements relating to the oxidation of residual petroleum waxes
IPC: C10G73/38
Filed: 1958-07-23
Abstract: Microcrystalline wax is oxidized by passing a free-oxygen containing gas through the molten wax in the presence of a parafin distillate wax oxidate as catalyst.  The microcrystalline wax is that wax obtained on de-waxing the de-asphalted residue remaining after vacuum distilling the residue remaining after crude petroleum has been distilled at atmospheric pressure.  The wax may be used in the crude state or after at least partial de-oiling by recrystallization.  Its oxidation may be effected with air at 140 DEG  - 200 DEG C., preferably until the oxidate has a saponification number (S.N.) of at least 5.  The catalyst may be prepared by air blowing the parafin wax in the presence of potassium permanganate at elevated temperature preferably until the oxidate has a S.N. of 20 - 200.  The oxidized portion of the catalyst may be extracted with a solvent therefor, e.g. methanol.  Examples describe the preparation of microcrystalline wax oxidates having S.N.s of 7 - 31.  They may be used as emulsifying or dispersing agents, for example, as described in Specification 902,623.ALSO:Surface-active agents are prepared by oxidising a micro crystalline wax by passing a gas containing free oxygen through the molten wax in the presence of a paraffin distillate wax oxidate as catalyst.  The micro crystalline wax is that wax obtained on de-waxing the deasphalted residue remaining after vacuum distilling the residue remaining after crude petroleum has been distilled at atmospheric pressure.  The micro crystalline wax may be used in the crude state or after at least a partial de-oiling by recrystallisation.  Its oxidation may be effected with air at 140 DEG -200 DEG C., preferably until the product has a saponification number (S.N.) of at least 5.  The catalyst may be prepared by air blowing the paraffin wax at elevated temperatures in the presence of potassium permanganate preferably until the oxidate has a S.N. of 20-200.  If desired, the oxidised portion of the catalyst may be extracted with a solvent such as methanol. Examples describe the preparation of micro crystalline wax oxidates having S.N.s of 7-31. They may be used as emulsifying or oxidising agents e.g. as described in Specification 902,623.
Patent GB-913033-A (GB)
Title: Improvements in and relating to forced recirculation steam boilers heated by waste gases
IPC: F22B29/02
Filed: 1961-06-30
Abstract: 913,033. Forced recirculation steam boilers. VORKAUF, H. June 30, 1961 [Feb. 8, 1961], No. 23688/61. Addition to 786,412. Class 123 (2). In a forced recirculation steam boiler as described in the parent Specification, each group of tubular elements 1 is connected to a separate collector header 7 and each collector header by a separate pipe line 9 either directly to a steam and water drum 8 or to an intermediate header itself connected by a single line 10 to the drum. The intermediate header and the drum are mounted below the lowest collector header. A non-return valve 11 is mounted in the line 10 and individual non-return valves may also be mounted in the lines 9 to prevent backflow of water to any group of heating elements which has been isolated.
Patent GB-503405-A (GB)
Title: Improvements in the spinning of artificial silk
IPC: F04C2/08
Filed: 1937-08-30
Abstract: 503,405. Alloys. BARMER MASCHINENFABRIK AKT.-GES. Aug. 30, 1937, No. 23724. Convention date, April 10. [Class 82 (i)] In the production of artificial silk from aqueous spinning solutions, the gear pump or the parts thereof subjected to contact with the solution are made of steel containing 12-16 per cent of chromium and 0À7-1À1 per cent of carbon, with or without up to 1À5 per cent of molybdenum, hardened to a hardness of at least 60 Rockwell C.
Patent GB-1065076-A (GB)
Title: Improvements in or relating to a device for hauling purse seines or similar fishing gear
IPC: A01K73/06
Filed: 1964-06-08
Abstract: 1,065,076. Fishing net haulers. K. BJORSHOL. June 8, 1964 [June 6, 1964], No. 23724/64. Heading A1A. [Also in Division B8] A device for hauling purse seines or similar fishing gear comprises rollers 13, 14, 15, Fig. 3, driven in mutually opposed directions for hauling when the net &c. is passed over and under the rollers. Alternate rollers may be freely rotatable but as shown, the rollers are all driven from a motor (19) (Fig 2, not shown) through gears (6) contained within a casing (5) carrying the rollers on stub shafts (12). The casing (5) is obliquely disposed in the direction of haul and is mounted on a tripod bracket 3, 3, 4 by a hinge (8) (Fig. 1, not shown) whereby the casing may be swung upwardly to a vertical stowed position by a hydraulic ram (9).
Patent GB-296025-A (GB)
Title: Improvements in and relating to systems of electric distribution
Filed: 1928-08-17
Abstract: 296,025. British Thomson-Houston Co., Ltd., (Assignees of Blake, D. K.). Aug. 23, 1927, [Convention date]. Switching systems.-An alternating current electric distribution system comprising switching means for connecting two circuits together and power directional means for controlling the opening and closing of the switching means is provided with means responsive to the movement of the power directional means to its opening position for maintaining it in its opening position as long as one of the circuits is energized. The drawing shows the invention in connection with a modification of the control arrangement shown in Specification 235,417. A low-voltage current network 1 is supplied by feeders, such as 3, from a supply circuit 2 by means of step-down transformers 4, whose primaries are permanently connected across the feeders 3 and whose secondaries are connected across the network 1 by switches .5, controlled by power directional relays 11, which are connected to the secondaries of the transformers 4 and control the circuits of the closing coils 7 and trip coils 9 of the switches 5 in accordance with the energy flowing between the network 1 and the transformer secondaries. Each relay 11 is biassed so that the contacts 12 for the closing coil 7 of a switch 5 are closed when the energy flow from the network 1 to the transformer 4 is less than a certain amount. The contacts 13 of a relay 11 are closed only when a predetermined amount of energy flows from the network to the transformer 4; these contacts 13 are in the circuit of the trip coil 9 of the associated switch 5, this circuit including contacts 22 closed when the switch 5 is closed so that the trip coil circuit is completed across the transformer and secondary. A current consuming device such as a reactor 15 may be connected across the feeders 3 to ensure a sufficiently large reverse flow to the transformer. As opening of the switch 5 stops this flow the relay 11 would return, without the provision of special means, to the normal position closing contacts 12 and if this occurs before all other switches 5 have closed the closing coil 7 of the associated switch 5 would be energized by current supplied from one of the other transformers. This is prevented by means of a holding coil 23, which is connected across the transformer secondary when the contacts 13 are closed and holds them closed as long as the transformer secondary voltage is above a predetermined value.
Patent GB-517946-A (GB)
Title: Improvements in and relating to photographic objectives
IPC: G02B9/04
Filed: 1938-08-11
Abstract: 517,946. Lenses. SCHNEIDER, J. A. and TRONNIER A. W., [trading as SCHNEIDER & .CO., J.]. Aug. 11, 1938, No. 23729. [Class 97 (i)] Relates to assymmetric objectives comprising two air-spaced components with a diaphragm between them, the rear component having a greater , collecting action than the front component and the latter being a cemented triplet of meniscus form with its external surfaces concave towards the rear and with at least one cemented surface concave towards the front; the refractive index of the inner lens of the triplet being at least 0.08 lower than that of either of the outer lenses, and the external surface of the triplet facing the rear component having greater negative refracting power than the adjacent surface of the rear component. According to the invention, the sum of the differences in the refractive indices at the cemented surfaces in the front component minus any difference in the refractive indices at the front and rear surfaces of the rear component, has a positive value between 0.005 and 0.185. Data are given.
Patent GB-505150-A (GB)
Title: Improvements in or relating to drying and crushing granular and like materials
IPC: B02C19/00
Filed: 1938-08-11
Abstract: 505,150. Mills and apparatus. BARTHELMESS, H. Aug. 11, 1938, No. 23734. Convention date, Aug. 16, 1937. [Class 59] Material after being dried in a drying-chamber is divided, unsifted, between two discharge outlets leading from the chamber, one outlet leading to the first stage of a multi - stage mill which rough grinds the material to be dried before it is introduced into the drying chamber, and the other outlet leads to the second stage of the mill which receives the dried material for finer grinding. As shown, material from a hopper a is fed by a screw b to the preliminary stage c of a mill c, c<1>, in which it is coarsely ground and projected into a dryer d supplied with hot gas through inlet i. The ground material fans into a hopper e provided with an adjustable flap which separates the material into two streams, one stream entering into the feed screw b to dry the material therein and the other stream passing into the second stage c<1> of the mill. The material from c<1> is discharged to a separator g through pipes f, c<11>, the pipe f containing an adjustable flap which diverts coarse material back to the mill stage c<1> for regrinding. The material from c<1> may be discharged through a pipe direct to the separator g. The hot gas in g may be-led back to the dryer d.
Patent GB-647158-A (GB)
Title: Pressure atomising liquid fuel burning systems
IPC: A01M13/00
Filed: 1947-08-27
Abstract: 647,158. Liquid-fuel burners. TRIGGS, W. W. (Homestead Valve Manufacturing Co.). Aug. 27, 1947, No. 23762. [Class 75(i)] In a pressure atomizing liquid-fuel burning system the fuel is delivered to the atomizing burner 28, Fig. 1, under pressure through an alleviating hose 25 predominantly expansible longitudinally to provide a sharp flow cut-off when the fuel supply is stopped. The fuel is withdrawn from a tank 1 through pipe 4 and strainer 5 by a positive displacement pump 10 driven by an electric motor 20, and delivered through a check valve 12, metering valve 6, and the alleviating hose 25 which serves also to smooth out the pressure pulsations caused by the pump. The discharge pressure at the check valve 12 is limited by a second check valve 21 connected with a fixed orifice 22 in a bypass pipe 23 leading back to the tank 1. The motor 20 also drives the air blower 36 so that when it is stopped both the air and fuel supplies are cut off, the hose 25 contracting suddenly to discharge a final slug of fuel from the burner before the air supply diminishes sufficiently for soot and smoke formation. The hose 25 may be constructed of two layers of natural or synthetic rubber or similar plastic material, preferably rendered resistant against corrosion by liquid fuel, having therebetween a cross-braided wire or cord sleeve having the wires or cores crossing one another at an acute angle longitudinally. Specification 629,688 is referred to.
Patent GB-1020619-A (GB)
Title: Novel cinchoninic acid derivatives and a process for the manufacture thereof
IPC: C07D215/50
Filed: 1964-03-06
Abstract: The invention comprises compounds of general formula <FORM:1020619/C2/1> in which R1 represents halogen or alkyl (1-6 C), R2 represents alkyl (1-6 C) or aryl, Ac represents an acyl group, and the broken line denotes an optional substituent; and their preparation by reacting a corresponding 3(R2CO-)-4(HOOC-) quinoline with an acid anhydride.
Patent GB-366904-A (GB)
Title: Improvements in sliders for annealing and the like furnaces
IPC: C21D9/00
Filed: 1930-08-08
Abstract: 366,904. Annealing-furnaces. VEREINIGTE STAHLWERKE AKT.-GES., 69, Breitestrasse, D³sseldorf, and SCHREIBER, E., 12, Neumarkt, Ruhrort, Duisburg, both in Germany. Aug. 8, 1930, No. 23781. Convention date, Oct. 17, 1929. Void [Published under Sect. 91 of the Acts]. [Class 51 (ii).] Tunnel furnaces; doors.-A sliding partition c, for isolating the main heating chamber a of a tunnel annealing or like furnace from a preheating and/or a cooling chamber b, consists of refractory or heatinsulating material bordered by a watercooled metal frame g. The frame g may be extended to provide a water chamber completely covering one side of the partition. The slot provided in the furnace roof for the passage of the partition is closed by a cover f.
Patent GB-517851-A (GB)
Title: Improvements in the control of multi-cylinder internal combustion engines
IPC: F02D1/08
Filed: 1938-08-12
Abstract: 517,851. Regulating. NEUMANN, W. Aug. 12, 1938, No. 23789. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 13, 1939.] [Class 7 (vi)] With a view to maintaining the lubricating oil film in the cylinders of multi-cylinder engines, the cylinders are periodically and successively cut out of action each for a short interval of time, by interruptirig the supply of fuel or combustible mixture, or reducing it to a value insufficient to permit ignition, or by short-circuiting the ignition. Fig. 1 shows a throttle 4 controlling the inlet to a cylinder and arranged to be closed for short intervals by an electromagnet 6 controlled by a contact device 12 operating at predetermined time intervals. Simultaneously contacts 10, 11 of the sparking- plug are also closed. Also an extra-air valve may be. opened behind the throttle, so as to render the mixture too weak to ignite.
Patent GB-1173905-A (GB)
Title: Improvements in Sharpening devices for Drawing Leads
Inventor: O'HANLON WILLIAM FRANCIS
IPC: B43L23/00
Filed: 1966-05-27
Abstract: 1,173,905. Electric pencil sharpener. W. F. O'HANLON. 2 Aug., 1967 [27 May, 1966], No. 23871/66. Heading B6P. A sharpener device for pencil leads not encased in wood comprises a casing 10 housing batteries 50 and an electric motor 30, and provided with a waste compartment 37 of cylindrical formation. A pencil sharpener 22 is mounted for universal movement on a ball 32 of a shaft 28 of the motor 30. A removable cap 60 is formed with a cylindrical opening 66 for the sharpener 22, with a felt annular sealing member 70 effectively sealing off the compartment 37. When a lead pencil is inserted into the bore 24 of the sharpener, limited axial movement of the sharpener and the motor 30 against the spring bias of an electric switch 46 completes the electric circuit from the batteries 50 to the motor 30.