baber/WOPTO huggingface dataset:
Patent GB-903233-A (GB)
Title: Method and apparatus for casting metal
IPC: B22D11/14
Filed: 1959-01-06
Abstract: 903,233. Continuous casting - machines. AMERICAN SMELTING & REFINING CO. Jan. 6, 1959 [March 26, 1958], No. 18999/60. Divided out of 903,232. Drawings to Specification. Class 83 (1). In a continuous casting process which comprises feeding molten metal from a reservoir through a delivery conduit, the pouring operation is initiated by establishing metal flow through the conduit at a predetermined rate and delivering the metal to a point removed from the mould, then delivering the metal to the mould. The subject-matter of the Specification is contained within the Specification of the original application which is referred to. Specification 903,234 also is referred to.
Patent GB-775547-A (GB)
Title: Turbine driven vane wheel blowers and pumps
IPC: F04D1/00
Filed: 1953-07-09
Abstract: 775,547. Centrifugal blowers and pumps; turbines. BUCHI, A. July 9, 1953 [July 12, 1952], No. 19088/53. Classes 110 (1) and 110(3). A contra-rotating blower or pump comprising an inner axial-radial flow stage discharging into a contra-rotating outer radial flow stage is driven by a turbine mounted on the shaft of one stage which is connected by gearing to the other stage; the ratio of the gearing being-other than 1 : 1 and so arranged that the inner stage rotates at a higher speed than the outer stage. The inner flow stage, Fig. 1, comprises rotors 1, 3 having radial flow and axial flow vane systems 2, 4 respectively. The outer flow stage consists of a rotor 9 carrying a radial flow vane system 11. The rotor 9 is carried by a shaft 8, 8<SP>1</SP> on which is mounted a two-stage turbine 43, 44. The rotors 1, 3 are carried by a shaft 5 which is driven from the shaft 8<SP>1</SP> by gearing 31, 32, 33 and 34, Fig. 2. The shaft 5 is mounted in an axial and radial bearing 21 and a bearing 28. The shaft 8, 8<SP>1</SP> is mounted in bearings 60, 61. A freely rotating bearing bush 29 may be located between the shaft 5 and shaft 8, 8<SP>1</SP>. Seals are provided to prevent leakage of working or lubricating medium. The gearing may comprise friction wheel drives or belt drives. A stationary vane system may be provided between the contra-rotating rotors.
Patent GB-379041-A (GB)
Title: Improvements in or relating to manually operated electric controllers of the cam shaft type
IPC: H01H9/26
Filed: 1931-07-02
Abstract: 379,041. Rocking-bar and drum controllers. WEST & CO., Ltd., A. and PADDOCK, W. J., Lewes Road, Brighton. July 2, 1931, No. 19113. [Class 38 (iii).] A controller, such as is employed in tram cars,is arranged with the operating spindle 29 driving through skew or bevel-gearing a shaft carrying brake drums 8, and this shaft is geared to a parallel cam-shaft 5 operating the main contactors. This construction avoids the skew &c. gearing being located on the shaft 5 where it would occupy valuable space. A forward and reverse drum 10 is operated through cranks and a connecting-rod 38 by a removable handle 34, an interlocking-pawl 42 preventing movement of the spindle 29 when the drum 10 is in its mid-position and preventing movement of the drum 10 except when the spindle 29 is in its "off" position. A drum 11, for cutting out one or other motor if faulty, is operated through pin and forked levers from a shaft 52 upon which the removable handle 34 can be fitted.
Patent GB-1261364-A (GB)
Title: Analog computer apparatus
IPC: G06G7/19
Filed: 1969-04-15
Abstract: 1,261,364. Generating convolution functions. HITACHI Ltd. 15 April, 1969 [27 April, 1968], No. 19285/69. Heading G4G. Relates to analogue apparatus for performing a convolution e.g. the calculation of the output O(#) of a linear system where where I(r) is an input and W(#) an impulse response. Alternatively W(#) could represent a symmetrical weight function in the calculation of the weighted moving average of a signal I(#) which includes noise. According to the invention, the function W(#) is divided into n points separated by equal time intervals ##, each value W(n##) being multiplied by I(m## - n##) as m is varied from # to - #, the stored products being added together. The operation is represented mathematically by The apparatus may comprise a tape recorder having two channels 16, 17, the signal I(#) being recorded on channel 16. This signal is read out by the head 4 and fed via an amplifier to a phase inverter and coefficient multiplier 11 where it is multiplied by W(0) which is the first set value of W(#). After the sign of the product signal has been determined it is passed through an adder 12 and then recorded on the second channel 17. Because of the difference in position of the reading head 4 and the recording head 9, there is a time difference ## between the signals on the two tracks. The signal read by the head 7 of the second track 17 is amplified and fed to the adder 12 where it is added to the signal on the first channel 16 read out by head 4 and multiplied by the second set value W(#t) of the signal W(#). This sum is fed to the recording head 9 of the second channel 17 and recorded immediately after erasure of the signal previously recorded on this channel. The final summation signal is thus generated by successive accumulations and may be read out directly after completion of the (n+1)th scanning operation. It is fed to a recorder 15 via a filter and attenuator 14 where it is normalized. The specification also describes an apparatus which compensates for the drift and noise inherent in the tape recorder. This consists essentially of a four-channel tape recorder (Fig. 3, not shown) in which the drift &c. component of the signal recorded on the first channel (16) is synchronously recorded on a second channel and subsequently multiplied by the successive values of W(m##) in the same manner as the main signal. The successive products generated from the drift signal are subtracted from those generated by the main signal. The fourth channel is used to record synchronously the drift &c. characteristics of the third channel (this is the second channel 17 of Fig. 2), this signal being read out and used to compensate the summation signals read out from the third channel.
Patent GB-1409711-A (GB)
Title: Optical systems
IPC: G02F1/03
Filed: 1971-06-08
Abstract: 1409711 Polarization REDIFON Ltd 1 Sept 1972 [8 June 1971] 19417/71 Heading G2J [Also in Division H4] In an optical system a dispersive birefringent plate, of a thickness such that it acts as a wholewaveplate for one or more first components of an incident plane polarized beam and as a ¢ plate for one or more second components is followed by a polarization sensitive beam-splitter, whereby the first and second components are separated. As described, the main (fast or slow) axis of the plate is at 45 degrees to the direction of incident polarization whereby the polarization of the first component is unaltered and that of the second component is changed by 90 degrees. The polarization beam-splitter may be a Wollaston prism or a prism including a dielectric mirror at 45 degrees to the optical path for selectively reflecting light with a polarization direction in the place of the mirror. The dispersive plate is of crystalline quartz with its optical axis in the plane of the plate. The system may be reversed for providing a single polychromatic beam with a single plane of polarization from a plurality of beams.
Patent GB-219178-A (GB)
Title: Improved electric fire
IPC: F24C7/00
Filed: 1923-07-30
Abstract: 219,178. Berry, H. H., and Reid, J. W. July 30, 1923. Imitation fires.- An electric radiator of the kind employing imitation fuel, electric lamps, flicker-producing devices, and a heating element, has the front constructed of angle and/or channel bars which are attached to the sides, and the latter are attached to a curved back. The angle bars 1 are fitted into the slots in the uprights 2 of channel section, and the latter are attached to the sides 4. The back 5 is curved at the upper part and carries a reflector 6 secured by a split tube 8 and an angle bar 9. The sides 4 are turned inwards at 11 to support the bottom 12 which is an extension of the back 5. The part 13 is perforated and carries a coloured screen, and the part 14 supports the fuel. A lamp 16 is arranged below a pair of oppositely rotating fans 18, 20. The heating elements 21 are mounted on a plate 22 supported by angles 23, and a coloured screen 33 is provided. Ornamental facings such as 29 are added.
Patent GB-1306706-A (GB)
Title: Process for rearranging the structures of crude oil or heavy fractions thereof
IPC: C10G57/00
Filed: 1970-04-23
Abstract: 1306706 Cracking; hydrogenated and/or alkylated tars and uses thereof KUREHA KAGAKU KOGYO KK 23 April 1970 [25 April 1969] 19625/70 Headings C4X C5E and C5F Crude oils or heavy fractions thereof are cracked by contact with high temperature steam to provide (1) a gaseous product containing inter alia acetylene, ethylene, possibly propylene, and hydrogen, (2) an aromatic fraction containing benzene and naphthalene, and (3) a tar comprising polycyclic aromatics; and the tar is catalytically reacted with at least one of hydrogen, ethylene and propylene obtained from the gaseous product, at a temperature lower than the cracked temperature to provide a hydrogenated and/or alkylated tar. Suitable hydrogenation catalysts comprise Co, Mo, Ni, W or Pt, and suitable alkylation catalysts are silica, alumina and zeolites. In Example 1, a naphthenic crude oil was cracked by injection into steam at 2000‹ C., and the products separated into gaseous and liquid fractions. The gaseous fraction was treated with aqueous K 2 CO 3  solution to remove CO 2 , and with acetone or dimethylformamide to recover acetylene, and methane, hydrogen and ethylene were separated by a cooling system. The liquid product was fractionated to yield a benzene/ naphthalene fraction and a tar fraction. The latter was then hydrogenated with the recovered H 2  over a Co/Mo/active Al 2 O 3  catalyst to effect olefin removal and desulphurization, alkylated over alumina with recovered ethylene, and a portion of the alkylated product further hydrogenated over Ni/Al 2 O 3 . In Examples 2 and 3 paraffinic crude oils are cracked and the products treated similarly as far as the first hydrogenation, then in Example 2 by further hydrogenation only, and in Example 3 by alkylation with propylene over silica/alumina only. The hydrogenated and/or alkylated tars produced as above, or fractions thereof, are stated to be useful as, inter alia, heat transfer oils, high energy fuels, and insulating oils.
Patent GB-381912-A (GB)
Title: An improved colostomy appliance
IPC: A61F5/445
Filed: 1932-07-12
Abstract: 381,912. Colostomy appliances. HART, W. S., 29, Coley Hill, Reading. July 12, 1932, No. 19631. [Class 81 (ii).] A colostomy appliance comprises an apertured plate A held over the artificial anus by a belt and provided with a long depending discharge tube D which increases in diameter from the curved upper portion C to the open lower end E. Cotton wool, or a rubber washer, may be placed between the plate A and the abdomen to ensure a tight joint.
Patent GB-1519141-A (GB)
Title: Switching systems
IPC: H02M7/539
Filed: 1975-07-08
Abstract: 1519141 Protecting inverters COMMUNICATIONS PATENTS Ltd 8 July 1975 [3 May 1974] 19662/74 Heading H2F A switching system comprises a plurality of semi-conductor switches 4, 5 arranged to be operated sequentially by a series of "on" and "off" command signals, means 3 for providing a delay interval between the "off" comand to any one switch and the "on" command to the next switch in sequence, and means 7 for detecting simultaneous conduction of both or successive switches in the sequence to cause an an increase in the duration of the delay interval. The "on" and "off" command signals C, D are provided by a logic circuit 2 which receives signals A and B from a switching signal generator 1 and a pulse generator 3, the signal B determining the delay interval tm. Should the switches 4, 5 conduct simultaneously the device 7 provides an output voltage on line 8 to generator 3 which is proportional in magnitude to the magnitude of the simultaneous current in switches 4, 5. A reference voltage from a generator 9 is also applied to generator 3, the delay time being determined by the amplitude of the voltage on line 8 relative to the reference voltage (which may be zero). The generator 3 may be programmed to maintain the delay interval between predetermined upper and lower limits. The arrangement shown acts as a D.C. to A.C. converter with a D.C. source 10 and a load 6. The D.C. source may be amplitude modulated and the generator 1 may be frequency or phase modulated. The detecting device 7 may comprise a filtering means having a fast response time but a long decay time, and the device 7 may control protective devices.
Patent GB-698986-A (GB)
Title: Improvements in buckles for wrist-watch straps
IPC: A44B11/00
Filed: 1951-08-21
Abstract: 698,986. Buckles. NEGRINT, A. Aug. 21, 1951 [Oct. 5, 1950], No. 19725/51. Class 43. In a pivoted-tongue buckle for wrist-watch straps, comprising two elements elastically connected together, a frame 1, having a cross bar 2 on which a tongue 3 is pivoted, carries on its side bars cylinders 4, 5 respectively in each of which a piston 19 carried by a rod 17 or 18 is slidable against the action of a spring 20. The rods are connected to sleeves 12, 13 bridged by a headed pin 14 which passes through the sleeve 13 and screws into the sleeve 12. One end of a strap 21 is secured round the pin 14.
Patent GB-256651-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J9/395
Filed: 1926-08-10
Abstract: 256,651. British Thomson-Houston Co., Ltd., (Assignees of Charlton, E. E., and Whelan, D. 0.). Aug. 10, 1925, [Convention date]. Vacuum tubes; low-pressure metallic-vapour apparatus.-In introducing alkali and other reactive metals or vaporizable materials into discharge devices, a charge evolving the material when heated is enclosed in a nearly closed capsule of conducting material which is heated, to volatilize the metal &c., by high-frequency induction independently of the electrodes. The capsule may be supported from an electrode or its lead. The capsule is heated after the electrodes have been freed from gas by heating them independently of the capsule by high-frequency induction and after the gases so freed have been removed by evacuation and the envelope sealed. The charge may comprise chloride of caesium or other alkali metal mixed with a reducing agent such as calcium or magnesium and compacted into coherent form; for example, a strip of the mixture without any binding substance may be extruded under hydraulic pressure and subdivided into pellets which are dried in a vacuum. A pellet of the mixture is placed in a capsule of sheet metal -such as nickel or molybdenum comprising integral parts 16, 17, Fig. 4, bent together about a neck 18 and held together by ears 19, 20. In a modi- - fication, the capsule comprises a tube with nearlyclosed slits and having a corner welded to a flange at one end. The capsule 15, Fig. 3, may be carried by a stem 21 on the anode 10 or on an anode lead as shown. An inducing coil is positioned outside the envelope in two positions successively to heat the anode and the capsule respectively, one independently of the other. Material, such as calcium or magnesium, combining with gas on volatilization may be applied to the anode as at 30, Fig. 3. Specification 208,694 as open to inspection under Sect. 91 (3) (a) is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also arrangements in which the electrodes and capsule are simultaneously heated, the capsule 22<1>, Fig. 5, (Cancelled), of either of the forms previously described being mounted by spot-welding or otherwise directly on the anode and heatsd mainly by heat conduction from the anode, and also a construction with a tubular capsule 24, Fig. 9, (Cancelled), which has crimped ends and contains two pellets 27 of the charge and which may be heated independently of the anode 26, and is carried by a lateral support 25 of the anode 26. This subject. matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 251,673.
Patent GB-836638-A (GB)
Title: Improvements in or relating to locks
IPC: E05B65/50
Filed: 1957-06-24
Abstract: 836,638. Locks. HYNES, G. S. June 23, 1958 [June 24, 1957], No. 19751/57. Class 44. In means for releasably locking a fireguard &c. to a fireplace, a plate 1 apertured at 2 has on one side a socket 13, mounted in alignment with said aperture 2, and a pivoted catch 3, an extension 3a of which is received by a slot 12 in the socket. A housing 6 mounted on the other side of plate 1 rotatably supports a keybarrel 5. A locking bar 14 tapered at 14a and having a slot 14b is inserted into the socket whereupon the catch 3 is raised. Further insertion of the bar 14 brings the slot 14b into alignment with the catch 3 which falls and locks the bar in situ. The bar may be released by a key which, on being inserted in a slot in the key-barrel and turned, causes the catch 3 to lift clear of the slot 14b so that the bar can be withdrawn. The catch 3 may be spring- urged and the locking means may be supported by a frame attached to the fireplace. The locking bar is connected to a chain or spring 1, for example, attached to the fireguard, and a socket assembly may be fixed at each side of the fireplace.
Patent GB-725084-A (GB)
Title: Improvements in or relating to cinematograph projection screens
IPC: G03B21/56
Filed: 1953-07-16
Abstract: 725,084. Projection screens. BRAKELL, G. R. July 16, 1953, No. 19756/53. Class 97 (1). Separate sheets, each consisting of a thin,plastic layer adhering to a thick base layer are joined by securing the base layers, the joins being covered by the plastic layers. As shown, plastic layers 12 are carried on bases 11 of textile or plastic. Both may be polyvinyl chloride, the layer 12 is secured by welding, if the base is plastic, or by adhesive. The margins of the layer 12 are left free so that the margins 21 of the bases can be secured by welding or stitching. The margins 22, 25 of the layers 12 are then secured, as by adhesive, in overlapping relation, being trimmed if necessary. The separate sheets are coated with aluminium paint and perforated before being joined.
Patent GB-616535-A (GB)
Title: Improvements in and relating to gas-fired radiant heat emission apparatus
IPC: F24C3/08
Filed: 1945-08-02
Abstract: 616,535. Radiant heating devices. JENNINGS, A. C., MIDDLETON, M., and CLAYTON EQUIPMENT CO., Ltd. Aug. 2, 1945, No. 19845. [Class 51 (i)] A gas-fired radiant heating device applicable to foundry mould drying and other industrial uses comprises a panel or panels a of refractory material encased by a metal frame b and having burners f projecting through orifices g, said burners having jets e adapted to spread the flames over the surface of the panel or panels. Each separate unit is complete in itself and may be positioned as required. Combustion products escaping through the orifices g or through additional orifices may be collected in a hood and evacuated under suction.
Patent GB-1171471-A (GB)
Title: Improved Ejector Means for Separating Interfitting Male and Female Members
Inventor: ANDERSON FRED
IPC: B21C35/04
Filed: 1966-10-05
Abstract: 1,171,471. Extruding. VICKERS Ltd. 20 Dec., 1967 [5 Oct., 1966], No. 19898/66. Heading B3P. [Also in Division B4] Apparatus for separating interfitting male and female members 2, 1, such as an extrusion discard fitting into an extrusion die, comprises a hydrostatic pressure device 6 for applying hydrostatic pressure to one of the members. After separating the extrusion discard 2a from the extruded product, the die holder 3 with the die 1 is placed between an abutment 5 and an exchangeable sealing plug 12 screwed into a pressure vessel 6. This has a chamber 9a supplied with pressure fluid through pipe 24 and connected through bore 14 with a chamber 4b surrounding the discard. The fluid is pressurized by a ram 21 connected to a piston 20 in chamber 25 supplied through conduit 24a with low pressure hydraulic fluid. Bore 14 may include a non-return valve. Ram 21 is retracted by the pressurizing of chamber 26 or by a return spring. In another embodiment, Fig. 2 (not shown), a single or double-acting clamping piston (30) is moved by high pressure fluid into sealing engagement with the die holder. The fluid then acts through a valved bore (41) in the clamping piston on the discard. In a further embodiment, Fig. 3 (not shown), the clamping piston (30) is in tandem with an intensifier piston (45) which produces the high hydrostatic pressure. The invention also may be used for separating flywheels and gears from shafts.
Patent GB-1059488-A (GB)
Title: Hydraulic and pneumatic discharge apparatus for bulk transport systems
IPC: B65G53/00
Filed: 1964-05-13
Abstract: 1,059,488. Pneumatic conveyers. HUGHES TOOL CO. May 13, 1964 [July 29, 1963], No. 19939/64. Heading B8A. [Also in Division F1] In pneumatic or hydraulic apparatus for discharging solids from a sealed hopper 1, Fig. 1, gas or liquid is injected through one or more inlets 7 concentrically surrounding the material outlet 9. The direction of flow of the injected fluid is substantially in the opposite direction to that of the discharging solid so that turbulence is created at the outlet. The inlet flow may be disposed at angles between zero and substantially less than 90 degrees relative to each other.
Patent GB-422211-A (GB)
Title: Improvements in or relating to web-renewing devices for printing and other machines
IPC: B65H19/18
Filed: 1933-07-15
Abstract: 422,211. Feeding webs. JAMES, H. V., Cintra, Watford Road, Radlett, Hertfordshire. July 15, 1933, No. 20097. [Class 100 (i)] A tab for holding down the leading end of a new web roll to the body of the roll during web-renewing operations in printing and other machines consists of a piece of paper or other material c having two spaced lines of perforations d extending from one edge of the material to a cut line or slot e. The inner portion g is adapted to be secured by adhesive to the narrowed portion b<1> of the web near its extreme end b<2> and the outer portion h to the body of the roll. Narrow strips on each side of the rows of perforations and a strip on the side of the slot e remote from the portion g are left free from adhesive and the strip overlaps the extreme end b' of the web to prevent lift of this end by wind pressure when the roll is rotated. Paste is applied to the outer face of the portion g and the adjacent part of the end of the web, and when the expiring web is pressed against the rotating roll, the portion g is torn away from the remainder, this tearing being facilitated by the provision of openings f at the junction of the perforations and slot e.