baber/WOPTO huggingface dataset:
Patent GB-1481123-A (GB)
Title: Corona generator cleaning apparatus
IPC: H01T19/00
Filed: 1975-01-14
Abstract: 1481123 Corona charging apparatus XEROX CORP 14 Jan 1975 [16 Jan 1974] 1492/75 Heading H1X A corona device includes a trough-like shield 66, Fig. 2, a grid 68 in the open side of the shield, electrodes 78, 80 between the shield and the grid, and means for cleaning the electrodes and grid, the cleaning means having a part for flexing the grid, loosening particles adhering thereto, and scraping the loosened particles therefrom, and a part for wiping particles from the electrodes 78, 80. The corona device forms part of a known colour electrophotographic machine. As shown in Fig. 2, the device includes a trough-like shield 66 with the opening towards and close to a photoconducting surface. A grid extending lengthwise of the shield comprises parallel wires 68, which may be parts of a single continuous wire. Insulated plates 74 (only one shown) fixed to the ends of shield 66 have screws 70 to which the ends of the wire are fixed, intermediate loops passing round posts 72. Wires 68 and coronode wires 78, 80 are made of platinum. Coronode wire 80 lies under the wires 68, but coronode wire 78 lines under a gap between wires 68 and the side of shield 66. In use, coronode wires 78, 80 have a potential of 6000-8000 volts and the grid wires have a potential of about 925 volts, producing a corona current of about 200-500 Á amps. Cleaning means 82 (see also Fig. 4) comprises a comb with slots 98 engaging wires 68, and felt wipers 106, 108 engaging coronode wires 78, 80, mounted in a carriage movable along the wires by a rod 88 slidable along shield 66 and having a handle 90, which is accessible from outside the machine, and is used to move the cleaning means to and fro. A surface within the carriage engages the grid wires 68, pushing them upwards so that they are flexed as the carriage moves. This tends to loosen particles baked on to the wires.
Patent GB-555271-A (GB)
Title: Improvements in and connected with apparatus for cleaning water strainers
IPC: B01D35/12
Filed: 1942-02-04
Abstract: 555,271. Filters. PEEBLES, J., and GLENFIELD & KENNEDY, Ltd. Feb. 4, 1942, No. 1495. [Class 46] The screen 1 of a water-strainer 2 is cleaned by rotating a co-axial tube 7, supplied with water under pressure through inlets 8 from an external chamber 3 and carrying helically-disposed nozzles 9. A baffle ring 10 protects the screen from injury by inflowing water to be strained. As shown in Fig. 3, a cylinder 11 is connected with the housing 2 and its discharge pipe 6B so that, when a given difference of pressure is set up, a piston 11<SP>1</SP> therein is moved downwards and operates a bell-crank lever 12 to rotate a tube 13 whereby the inlet and outlet valves 5, 6 are closed and the valve (4) for the pressure liquid, a discharge valve for sludge and a valve controlling a water motor 15 are opened. The latter drives the tube 7 through worm gearing 17. The lever is returned to the normal position by the weight of a container 20 when the latter is filled by a branch pipe 19 on the exhaust pipe 18 of the motor. The amount of water entering the container is greater than the amount leaking from the partially open cock 20c, which is adjusted for varying the period of cleaning. Twin apparatus may be connected together so that each takes cleaning water from the outlet of the other.
Patent GB-427053-A (GB)
Title: Modulating system for radio telephony and the like
IPC: H03C5/00
Filed: 1934-01-16
Abstract: 427,053. Modulating systems. SCHUCHTER, K., 26, Hottingergasse, Innsbruck, Austria. Jan. 16, 1934, No. 1544. Convention date, Jan. 16, 1933. [Class 40 (v)] Modulation is effected by inductively coupling to the oscillating aerial circuit 4 a separate circuit comprising a coil 3 shunted by a tuning- condenser 5, a rectifier 2, and a transformer 1 supplied by the signal source. The signal may be from a microphone, and the rectifier 2 may be of the thermionic valve or crystal type. The circuit 3, 5 exerts a variable damping on the aerial circuit and so modulates the output in rhythm with the signal. The inductive coupling 3, 4 may be variable. No biassing battery is required for the rectifier, and the system is specially suitable for small portable transmitters. Reference has been directed by the Comptroller to Specifications 170,378 and 218,335, [both in Class 40 (v)].
Patent GB-211663-A (GB)
Title: Improvements in and relating to milk cocks for milk holding devices and other pasteurising apparatus
IPC: A23C3/03
Filed: 1923-01-17
Abstract: 211,663. Prestage, E. Jan. 17, 1923. Plug cocks; leakage, discharging.-The body 4 of a cock for use in milk - pasteurising apparatus is provided with transverse apertures 8 so that any milk which may leak past the closure surface is discharged outside the milk conduit and thus does not contaminate the pasteurised milk. These apertures also discharge milk held in the passage 2 when the cock is turned off, and facilitate the cleaning of the passage. Modifications are described in which the passages 8 are replaced by grooves in the surface of the plug socket or by passages bored in the casing and leading from the socket. The inlets to such passages are of the same or greater axial length than that of the milk passage through the plug. A spring 5 acting through a ball bearing 6 may be provided to retain the plug in its seating.
Patent GB-707455-A (GB)
Title: Process of refining oils and fats
IPC: C11B3/00
Filed: 1951-01-22
Abstract: In the refining of fatty oils and fats by distilling off free fatty acids, the oils or fats are steam-distilled under a vacuum in the presence of adsorption agents, such as active carbon, at temperatures lying between 200 DEG  and 240 DEG C., until the bulk of the fatty acids has been distilled off, the temperature is then raised to between 270 DEG  and 320 DEG C., whereby bleaching of the oil or fat occurs, and finally the distillation is terminated by lowering the temperature.  The steam may be decreased during the decolorization and the final distillation.  The heating period for the decolorization may be increased if polymerization is desired.  Active carbon or mixtures of active carbon and other solid bleaching agents may be used.  These may be removed by filtration after the distillation and cooling of the oil or fat. A further bleaching step may follow with bleaching earth, active carbon or mixtures thereof in powder form, and finally a short steam deodorizing treatment.  The adsorption agents used during the distillation may be removed together with the bleaching agent used during the subsequent treatment.  The oils specified for treatment comprise palm oil, soya bean oil, linseed oil, and fish oil.  The oils refined as above may be mixed with oils or fats refined in accordance with normal practice to increase the stability of the latter.  Thus soya bean oil, linseed oil or fish oil so refined may be mixed with rape-seed oil, ground-nut oil or olive oil.  The final deodorizing step may be applied to the mixed oils.  The composition of these mixtures may lie within the proportions of 3 : 1 and 1 : 30, preferably 2 : 1 and 1 : 5. Specification 707,454 is referred to.
Patent GB-231266-A (GB)
Title: Improvements in ventilators
IPC: F23L17/02
Filed: 1924-01-22
Abstract: 231,266. Arnold, C., (Robertson Co., H. H.). Jan. 22, 1924. Chimney and ventilating-shaft tops. - A ventilator for buildings, ships, chimneys, &c. comprises an eduction pipe 10, a storm band 13 and a conical cap 12 located above the upper edge of the pipe 10 and within the band 13. One or more baffle rings 27 may be provided to prevent entry of rain into the pipe 10. Upward currents of air may be deflected outside the ventilator by means of a band 25 secured on the pipe 10 with a drainage opening 28 therebetween. An outwardly and downwardly extended lip 30 is provided around the upper edge of the pipe 10 to prevent air which passes up through the opening 28 from entering the ventilator.
Patent GB-486294-A (GB)
Title: Improvements in or relating to ovens for coking pitch
IPC: C10B29/08
Filed: 1938-01-19
Abstract: 486,294. Ovens for coking pitch. GROVES, W. W. (Otto & Co.,Ges., Dr. C.) Jan. 19, 1938, No. 1796. [Class 51 (ii)] Bracings.-In a coke-oven battery for coking pitch the heating-walls are made at least twice the width of the oven chambers and the oven masonry is braced both horizontally and vertically. In each heating-wall a row of upwardlyburning flues c is situ ated between and con nectedat the top to two rows of downwardly turning flues e leading to a collector flue g anc the chimney flue h. The bracing comprises buck stays k, which are an chored to the foundation by rods v and are held in tension by spring washers t bearing or beams i extending across and resting or the top of the oven Opposite buckstays are tied together by the beams i and rods j, both of which arc spring-loaded.
Patent GB-103846-A (GB)
Title: Improvements in Cake or Wafer Baking Machines.
Inventor: AUNES LEONARD
IPC: A21B5/02
Filed: 1916-02-07
Abstract: 103,846. Aunes, L. Feb. 7, 1916. Waffle and like baking-apparatus.-In waferbaking machines of the kind in which dough is delivered to a series of baking-irons which travel on runways and are automatically opened to deliver the cakes, there are provided automatic devices for (a) trimming all the edges of the irons and (b) receiving and delivering the cakes. The frame 1 has guideways 2 in which the irons 3 continuously travel. An auxiliary base 5 has uprights 6, 7 supporting a shaft 8, on which are secured a pinion 9 and an arm 10. Two parallel arms 11, 12, Figs. 5 and 10, are connected together by a link 16 so that, as one moves forwards, the other moves backwards. The link 16 and the arm 12 are fulcrumed upon a shaft 15. The lower ends of the arms are carried by shafts 13, 22, and an arm 19 is connected to both of these shafts and carries at its upper end a toothed segment 21, which gears with and operates the pinion 9. Each iron is provided on its under surface with a transversely sliding bar 84, operated by cams on a fixed bracket 79, which operates, as it travels, first the arm 11 by means of a depending lug 86, by which the shaft 22 is oscillated and therefore the segment 21, and afterwards the arm 12 by means of another lug 87, thereby bringing the parts back to their original positions. One effect of these movements is to actuate, through an arm 23 on the shaft 22 and a lateral expansion having a bifurcated end, a sliding shaft 25, which, as it is moved, causes an arm 30 to move transversely across the machine. The upper end of this arm is provided with spring cutters which pass between the ends of adjacent baking-irons and cut off any projecting dough. To cut off the dough from the sides of the irons, the arm 10, which is rotated backwards and forwards to the extent of half a revolution each time the pinion 9 is actuated, is connected by a link 48 to a U-shaped carrier 40, which slides within horizontal channel-bars 38. The front ends of the carrier are provided with spring cutters which scrape the side edges of the irons. At one end of the carrier, there is a roller 61, which, as it moves backwards and forwards, moves an arm 58 mounted on a shaft 50, upon which is also mounted a series of arms 51 to receive the cakes by gravity from the irons when they automatically open, as shown in Fig. 1. The cakes slide down to the rest or shelf 56, and on the next movement of the carrier, a spring 64 causes the receiver arms to swing over and deliver the cakes to the receiver plate 65. To allow this plate to receive and hold a number of cakes, an adjustable eccentric strap on the shaft 50 is connected to a toothed arm 75, the teeth of which engage teeth on the lower end of the receiver plate, whereby this plate receives a step-by-step rearward movement within its supporting-guides 66 at each operation of the device.
Patent GB-553617-A (GB)
Title: Improvements connected with the bearings of rolling mills, mixers, calenders, or like apparatus for acting on rubber or like mixes or masses
IPC: F16C13/02
Filed: 1942-02-12
Abstract: 553,617. Bearings. BRIDGE & CO., Ltd., D., and BROWN, J. Feb. 12 1942, No. 1857. [Class 12 (i)] In rolling mills and mixers for rubber and like masses, the bearings b<SP>2</SP>, Fig. 1, of the rear roller are self-aligned by a spherical projection or member d on the bearing engaging a concave seat or washer d<SP>1</SP> in the frame a, the bearing being held to the frame by a tie-bolt f. The bolt f is seated in a conical passage p and provided with a spring washer f<SP>2</SP>. The projection may be lubricated by oil cup f<SP>9</SP> and passages f<SP>7</SP>, f<SP>8</SP>. A felt or rubber ring or packing e is also provided. The bolt f may pass through a metallic ball f <SP>2</SP>, Fig. 4, and spherical washers f<SP>5</SP>, f<SP>6</SP> The member d may abut the frame a, Fig. 3a, and the washer d<SP>1</SP> be housed in the bearing b<SP>2</SP>.
Patent GB-971561-A (GB)
Title: Improvements in and relating to radar systems
IPC: G01S1/02
Filed: 1961-01-17
Abstract: 971, 561. Electric analogue calculating; electric selective signalling systems. MAXSON ELECTRONICS CORPORATION. Jan. 17,1961 [April 27, 1960], No. 1934/61. Headings G4G and G4H [Also in Division H4] In a pulse radar for determining the range and elevation of a target which comprises a maximum possible number 255 of separate channels corresponding to different angles of elevation such that any one target produces recurrent echo pulses in a single channel corresponding to the angle of elevation of the target, the timing of the pulses defining the range of the target (see Division H4),the number of channels required to transmit the data to a remote location is reduced to eight and an analogue height computer is provided lor each of the output elevation channels at the remote location to produce a pulse of amplitude proportional to the height of the target producing an echo in said channel. Analogue height computer, Figs. 8, 9,10 (not shown). Each computer, Fig. 8 (not shown), comprises a diode bridge sampling circuit, Fig. 10 (not shown) and a sawtooth voltage waveform, Figs. 8 and 9 (not shown), triggered by the radar trigger pulses and having a slope resistively alternated to be proportional to the angle of elevation characteristic of the particular channel, is sampled by the range timed input pulse to give a corresponding output height pulse of amplitude proportional to the height of the target. Digital data transmission system, Figs. 7A, 7B and Fig. 6 (not shown). The reduction of the number of transmission channels is effected by a parallel binary encoder, Fig. 7A, which derives from each input pulse on any one input channel a simultaneous set of output pulses which are applied to different ones of the eight output channels such that the combination of output channels carrying pulses represents in binary form the number N of the input channel supplying the input pulse. As shown in Fig. 7A all the input channels which should produce a pulse in a particular output binary channel are coupled to said output channel through an OR gate. At the remove location a single pulse is derived from each set of simultaneous input pulses and applied to the appropriate one of 255 output channels by means of a binary decoder, Fig. 7B, which comprises a pair of AND and OR gates for each output channel, the input of the AND gate corresponding to output channel N being connected to all the binary channels in which a pulse occurs in the binary code of channel N and the corresponding OR gate being connected to all the other binary channels, any output from the OR gate being applied to inhibit the AND gate. The above system cannot handle two simultaneous input pulses (corresponding to two targets of different elevation at the same range) and in order to deal with such a situation a pre-encoding logic circuit, Fig. 6 (not shown) is provided which suppresses alternate ones of the two pulses during alternate recurrence periods.
Patent GB-279686-A (GB)
Title: Improvements in inflatable cushions
IPC: A47C27/08
Filed: 1927-01-22
Abstract: 279,686. Schmitz, H. Jan. 22, 1927. Cushions. - An air cushion is provided with an inflatable appendage c shaped in the fashion of a head of an animal. Soundproducing means d and partitions e to restrict the expansion of the cushion may be incorporated in the device.
Patent GB-1248036-A (GB)
Title: Photopolymerisation of ethylenically unsaturated organic compounds
Inventor: LARIDON URBAIN LEOPOLD
IPC: C08F291/18
Filed: 1968-01-12
Abstract: 1,248,036. Photopolymerization. AGFA GEVAERT. 28 Nov., 1968 [12 Jan., 1968], No. 1952/68. Heading C3P. [Also in Division G2] Ethylenically unsaturated compounds are photo-polymerized by irradiation with actinic light in the presence of, as photo-polymerization initiator, a diacylhalomethane derivative of the formula wherein hal represents Cl or Br, R represents Cl, Br or an acetyloxy group, R<SP>1</SP> and R<SP>11</SP> which may be the same or different represent a benzoyl, nitrobenzoyl, dimethylaminobenzoyl, phenyl sulphonyl, carboxyphenyl sulphonyl, methylphenyl sulphonyl or naphthoyl group, and X and Y which may be the same or different represent a carbonyl or sulphonyl group. Photopolymerization can be effected in bulk, emulsion, suspension or solution. The polymerizable composition may optionally include a hydrophilic or hydrophobic binder, e.g. polystyrene, ethylene-maleic anhydride copolymer, - polymethyl methacrylate, polyvinyl acetate, polyvinyl butyral, partially saponified cellulose acetate, gelatin, casein, starch, carboxymethylcellulose or polyvinyl alcohol. There may also be present, as a thermal polymerization inhibitor, 2,6 - di - t - butyl - p - cresol. Specified as ethylenically unsaturated compounds are styrene, acrylamide, methacrylamide, methyl methacrylate, diethylaminoethyl methacrylate, acrylonitrile, divinyl benzene, glycol diacrylates, N,N<SP>1</SP> - alkylene - bis - acrylamides, and polymers containing ethylenic unsaturation such as allyl esters of polyacrylic acid, maleic esters of polyvinyl alcohol, polyolefins containing residual double bonds, unsaturated polyesters, cellulose acetomaleates and allyl cellulose. The photopolymerization products are useful, for example, as impregnating agents, safety glass interlayers and in the production of photographic images; photopolymerization in a mould can also be used to produce optical articles such as lenses.
Patent GB-407505-A (GB)
Title: Improvements in chain shifting devices for cycles
IPC: B62M9/124
Filed: 1933-01-21
Abstract: 407,505. Variable-speed chain gearing. CAMILLIS, L., 92, Bath Street, Birmingham. Jan. 21, 1933, No. 1999. [Class 80 (ii).] In variable-gear driving-mechanism for cycles of the type in which the chain 5 is engaged with either of two rear-hub sprockets 3, 4 by means of a jockey sprocket 13 carried on an arm 12 secured to a carrier 11 slidably and rotatably mounted in a housing 9 under the action of a spring 32, the spring 32 which slides the carrier 11 in one direction is adapted also to take up the slack of the chain by simultaneously imparting an automatic rotary movement to the arm 12. As shown, the chain passes over a second idle sprocket 17 mounted on the carrier 11, which is of cylindrical form and is provided with a wide slot 14 engaged by a screw 15 in the housing 9 to limit the outward sliding movement and restrict the rotary movement to 180‹. The housing 9 is threaded externally and is secured by lock nuts 10 to a bracket 7 through which it passes. The spring 32 presses the carrier 11 outwardly from the housing 9 so that the gear change can be effected by operation of a Bowden wire 24, and also exerts a torsional action on the carrier to keep the arm 12 depressed in order to take up chain slack, the ends of the spring engaging squared projections on the carrier and on a plug 27 in the end of the housing. The plug 27 is bored to receive a shank on a bracket 30 carrying a grooved pulley for guiding the wire 24. The arm 12 is slotted to permit adjustment of the sprocket 13.
Patent GB-1160419-A (GB)
Title: Process for preparing derivatives of 1,3-Benzoxazine-2,4-Dione.
Inventor: JAMES JOHN WILLIAM
IPC: C07D265/26
Filed: 1966-01-15
Abstract: 1,160,419. Substituted 1,3-benzoxazine-2,4- diones. ASPRO-NICHOLAS Ltd. 30 Nov., 1966 [15 Jan., 1966], No. 2005/66. Addition to 1,069,367. Heading C2C. 1,3-Benzoxazine diones of the general formula wherein R is halogen, C 1 -C 6  alkyl or alkoxy, C 6 -C 10  aryl, alkaryl or aralkyl or C 5 -C 7  cycloalkyl, and n is 1 to 4, are prepared by adding an alkyl ester of chloroformic acid to an aqueous reaction medium containing a suitable salicylamide derivative and an inorganic base in an amount to attain an initial pH above about 8, the ester being added with sufficient agitation to ensure a homogeneous reaction mixture and at a rate at least intially slow enough to keep the reaction temperature below the decomposition temperature of the final product and to keep the reaction rate slow enough to ensure a solid product and thereafter maintaining the reaction mixture at a temperature within that range until the formation of a solid product is substantially concluded, precipitation of the product as a solid either occurring during the course of the reaction or being effected or completed by addition of acid or water.
Patent GB-525404-A (GB)
Title: Improvements in electrical superheterodyne frequency-changers
IPC: H04B1/26
Filed: 1939-01-20
Abstract: 525,404. Superheterodyne circuits. GENERAL ELECTRIC CO., Ltd., SIMPSON, A. I. F., and STENNING, L. C. Jan. 20, 1939, Nos. 2032 and 7653. [Class 40 (v)] A short wave superheterodyne receiver in which the local oscillations are obtained through a chain of frequency multipliers, has the last doubler replaced by a second frequency changer so that the required I.F. signal is obtained by a double subtraction from the incoming signal. This arrangement has the advantage that a frequency changer produces slight amplification whereas a frequency doubler does not. The last doubler may feed its output directly to both frequency changers, but as shown in the Fig. the local oscillations applied to the second frequency changer are derived by filtering the output from the first changer. The last doubler may be omitted if the local oscillations applied to the second changer are derived by filtering out from the output of the first the third harmonic of the local oscillations supplied thereto.