baber/WOPTO huggingface dataset:
Patent GB-886614-A (GB)
Title: Improvements in cleaning means for filter bags
IPC: B01D46/04
Filed: 1960-08-31
Abstract: 886,614. Filters. FULLER CO. Aug. 31, 1960 [Sept. 21, 1959], No. 30015/60. Class 8(2). Apparatus for removing entrained or suspended particles from a flowing gas stream comprises a filter medium through which the gas stream is adapted to flow, the medium being of a material having a relatively low degree of response to audible or supersonic waves, an audible or supersonic wave generator, and an audible or supersonic wave receiver of material having a relatively higher degree of response to the waves than the filter medium, the receiver being attached to the medium, whereby vibrations or oscillations set up in the receiver will be transmitted to the filter medium. As described the latter is in the form of bags 10, Fig. 1, disposed within a housing 1 having an inlet 3 and an outlet 6 for the gas stream and an outlet 7 for the particles removed from the stream by the bags. Each bag 10 has a wave receiver 13 attached to each end thereof, the receiver being a curved metal plate, and attached to the housing 1 are one or more wave generators 12, e.g. whistles. In a second form of wave receiver a curved metal plate 21, Fig. 3, has a laterally extending arm 22 of thin resilient strip metal to the outer end of which is attached a weight 23. In a third form of wave receiver, Figs. 5 and 6 (not shown), a metal sleeve has two pairs of arms extending outwardly therefrom, the arms of each pair having different natural oscillation frequencies which may be obtained by securing a weight to the outer end of one of the arms. In a fourth form of wave receiver, Figs. 7 and 8 (not shown), a pair of spaced metal rings are interconnected by a strap or rod from which extend outwardly three metal arms which may have different natural oscillation frequencies. The first and second forms of wave receiver have each a natural oscillation frequency corresponding to the frequency of the waves generated by the generators. In apparatus provided with the third or fourth form of wave receivers the generators will generate waves of different frequencies corresponding, respectively, to the natural frequencies of the arms of the receivers. The wave receivers may be suspended or arranged separate from the bags instead of being attached directly thereto. Each receiver may be associated with more than one bag.
Patent GB-854210-A (GB)
Title: Improvements in or relating to apparatus for use in sight testing
IPC: A61B3/02
Filed: 1957-09-25
Abstract: 854,210. Sight testing apparatus. TURVILLE, A. E. Sept. 10, 1958 [Sept. 25, 1957; Feb. 27, 1958], Nos. 30144/57'and 6458/58. Class 97(1) Apparatus, for use in sight testing, comprises two mirrors, inclined at a large obtuse angle, and a pair of complementary stereoscopic representations so arranged that an observer of normal vision is able to see both mirrors with each eye but only the reflection of one representation in one mirror with each eye so that the two reflections appear to coalesce into a stereoscopic image. The apparatus shown in Fig. 4 comprises a frame 44 to which is attached a mirror system 46, tiltable about a universal pivot 47, a handle 41, a test chart 50 with "objects" 103 and 101, and an adjustable trial frame 52. The observer views images of the "objects" 103 and 102 with his right and left eye respectively, and, if he has normal vision, the line 102 will appear to pass through "o" in 103. The mirror system may be as shown in Fig 6, comprising two mirrors 54 which may be half-silvered, or as shown in Fig. 1 comprising two glass blocks 10. 12 making a small angle with each other, block 12 being rotatable about the axis PQ: the front surface 12 and the right hand half of the back surface of 10 are silvered. If the mirrors are half-silvered a white screen may be placed behind the mirrors, and viewed through said mirrors. Other test cards are described.
Patent GB-323825-A (GB)
Title: Improvements in devices for applying preparations to surfaces
IPC: A47L11/16
Filed: 1928-10-18
Abstract: 323,825. Electrolux, Ltd., (Inventia Patent-Verwertungs-Ges.). Oct. 18, 1928. Floors, cleaning and polishing.-Apparatus for treating floors and like surfaces comprises a container for cleaning, polishing or like perforations, provided with a delivery conduit stationary relatively to the apparatus during the normal treating operation thereof, a closing member located in the conduit being adapted to be moved from its closing position by sudden variation in manual manipulation of the apparatus. In a construction shown in Figs. 1 and 3, a container 7 for floorpolishing preparation is provided with a delivery conduit 6 adapted to project into a channel extending through the bearing of a brush disc forming one of the rotating elements of a floorpolishing machine. A ball 9 normally closes the outlet from the container but is displaced upon sudden variation of movement of the machine across the floor. The ball may be held in its closing position by means of a rod 11 secured to the screw cap 10 of the container. In a modification shown in Fig. 4, the conduit 6 has a valve seat 13 adapted to be closed by a valve 12 which is formed at one end with means of attachment to a tension spring 14 and at the other end is provided with a weight 17. The valve is temporarily displaced by sudden variations in movement of the apparatus.
Patent GB-425775-A (GB)
Title: Improvements in or relating to silencers, or a method of reducing the noise of exhaust emission from internal combustion engines, pneumatic tools and all such sources of noise
IPC: F01N1/16
Filed: 1933-10-31
Abstract: 425,775. Exhaust silencers. SEABORNE, A. B., 20, Oakhill Road, Putney, London. Oct. 31, 1933, No. 30163. [Class 7 (ii)] The gases entering at b into a chamber a<1> are trapped in a closely-wound coil e closed at d<1>, until the exhaust impulse is sufficient to extend the coils so that the gases escape between the convolutions into a second chamber a<2> having an outlet at c. The coils then close again until the arrival of the next exhaust impulse. Modifications are described embodying a plurality of coils arranged in tandem or concentrically.
Patent GB-932979-A (GB)
Title: Beverage making machine
IPC: A47J31/057
Filed: 1961-08-22
Abstract: 932,979. Coffee and tea infusing machines. G. R. BUNN. Aug. 22, 1961, No. 30200/61. Class 129. An automatic coffee or tea making machine comprises means for heating a supply of water to a relatively-low temperature and feeding the heated water, when a drink is required, to another tank where it is heated rapidly to the required temperature and whence it is discharged over a large area of coffee or tea, the whole being under the control of a timing- device. The coffee &c. is carried on a filter 14 over a receptacle 22 which can be heated by a coil 25. Water is supplied to a relatively large tank 36 wherein it is heated to approximately 120‹ F. by a heater 37 and from which it is fed to a smaller tank 29 enclosing a heater 30 capable of heating the water to 204‹ F. Heated water passes by way of a pipe 26, which acts as a siphon, to a spray 11 located above the coffee &c. An air vent 31 is arranged between the upper end of the tank 29 and the space above the coffee &c. adjacent the spray 11. When switches 47, 48 in the main leads are closed, the heater is energized, contacts 49, under the control of a thermostat 50, acting to prevent overheating. Closure of contacts 69 energizes the coil 25 and lights an indicator lamp 73. Subsequent closure of contacts 71 energizes the motor 58, causing an arm 63 of a timing-device 55 to rotate and wind up a spring 62, and also closes contacts 67a so that the motor circuit is maintained, the solenoid 42 is energized to open the valve 40 in the water-supply main, and the heater 30 is energized; this heater can be deenergized by opening of the contacts 52 under the control of a thermostat 54 if the water passing to the spray is too hot. When sufficient water has passed, determined by the time taken for the arm 63 to move from the adjustable stop 64 to engage an arm 65, the contacts 66 are opened, thus disconnecting the motor 58 and allowing the arm 65 to return against the stop 64, and opening the contacts 67a, thus deenergizing the heater 30 and closing the valve 40.
Patent GB-1519786-A (GB)
Title: Circuit arrangement for electronic musical instruments
IPC: G10H5/00
Filed: 1975-07-18
Abstract: 1519786 Electronic musical instruments PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 July 1975 [23 July 1974] 30214/75 Heading G5J A musical instrument comprising a combination of a normal electronic organ and a synthesizer using separate tone generators has an automatic frequency control loop connected to ensure that the frequency of the synthesizer generator, at least after an attack period, is the same as that of the organ note played. In Fig. 1 a switch S 1  operated by the playing keys connects the selected tone from generator G1 to a comparator FC which compares its frequency with that of the synthesizer generator G2 and through a control circuit CD corrects the voltage controlled generator G2 to equalize the frequencies. For a polyphonic arrangement one such circuit is required for each note. In a modification (Fig. 3, not shown) each generator is of the kind comprising a master oscillator and a divider circuit to generate all the tone frequencies; the comparator and control are connected to the two master oscillators only. The comparator and control circuit, Fig. 4, includes a capacitor C3 which has positive or negative charge applied to it in response to pulses from the two generators respectively and whose voltage controls the frequency of generator G2. When simulating a slidy tone instrument such as a trombone, the time constant of C3 is increased by opening switches S1, S2 so it takes a certain time to reach the new note. To similate a steel guitar an additional capacitor (C4, Fig. 6, not shown) normally held charged is connected to C3 when the note is played so the note starts low and rises to the desired tone. A circuit (Fig. 7, not shown) is also described whereby a single keyboard may be used for both the organ and synthesizer parts of the instrument. When only one key is depressed the synthesizer generator G2 is coupled to the output but as soon as more than one is depressed a threshold circuit automatically reconnects the output to the organ generator G1.
Patent GB-991503-A (GB)
Title: Improvements in or relating to tobacco products
IPC: A24B15/16
Filed: 1963-07-30
Abstract: A process for making a tobacco product for use in smokable articles (e.g. cigars, cigarettes) comprises withdrawing from tobacco a substantial proportion of the fibrous material whose pyrolysis generates tars, and combining the non-fibrous remainder with a carrier comprising noncombustible fibres (e.g. glass, asbestos, corborundum, potassium titanate fibres or a mixture thereof) formed into a paper web.  The tobacco is extracted with hot or boiling water and additionally optionally with solvent (e.g. ethyl ether, acetone) the extracts are concentrated and combustible diluents such as water soluble cellulose derivatives e.g. dextrin and mineral fillers which effect the burning rate of the tobacco e.g. alumina may be added before the extract is sprayed on to the paper web prepared from non-combustible fibres. To facilitate bonding of the fibres during the formation of the paper web cellulosic fibres such as wood pulp may be used, or extracted tobacco leaf.  The recombination of the non-fibrous material of the tobacco is performed in such amounts that the proportion of fibrous material to non-fibrous material in the final product is substantially the same as in the original tobacco.
Patent GB-1386203-A (GB)
Title: Water repellant metals and the preparation thereof
IPC: C09F1/04
Filed: 1973-06-26
Abstract: 1386203 Aerated cement ICI AUSTRALIA Ltd 26 June 1973 [11 July 1972] 30216/73 Heading ClH [Also in Division C7] In Example 35 an aerated cement block is prepared by mixing cement, rock dust and water with hydrophobic aluminium powder produced by reacting finely-divided aluminium with an aqueous solution of a saponified hydrogenated rosin.
Patent GB-841529-A (GB)
Title: A process for the production of electrolytic metal coatings
IPC: C25D3/12
Filed: 1956-10-04
Abstract: 841,529. Electrode position of bright nickel and cadmium. DEHYDAG, DEUTSCHE, HYDRIERWERKE G. m.b. H. Oct. 4, 1956 [Oct. 7 1955], No. 30220/56. Class 41. Bright adherent nickel or cadmium electrodeposits are produced from baths containing in addition to a salt of nickel or cadmium an organic disulphimide containing one or more of the halogen atoms chlorine or bromine, or a water-soluble salt thereof, in the absence of compounds comprising two heterocyclic radicals each containing a nitrogen atom in the ring and in the absence of coumarin or its derivatives. Suitable halogenated disulphimides are the 4-chloro, 4-bromo, 44<SP>1</SP>-dichloro, 4:41-dibromo, 4-chloro-41-bromo, 3-4:31:41-tetrachloro, 3- chloro-4:4<SP>1</SP>-dimethyl, 3:3<SP>1</SP>-dichloro-4:4<SP>1</SP> dimethyl and 4-(C 1 -C 8 ) alkyl-41-chloro or-bromo derivatives of dibenzene disulphimide and 4- chloro or-bromo-benzene-(C 1 -C 8 ) allkane disulphimides, or their alkali metal or ammonium salt, used in concentrations of 0À1 to 10 gms/litre. Examples are given of such compounds added to Watts nickel baths. Levelling agents such as (a) the internal salts formed by reacting tertiary mono-or poly-nuclear heterocyclic aromatic nitrogen bases with sultones referred to in Specification 815,916, e.g. quinolinium - or pyridinum- N-propanesulphonic acid, (b) bis-or poly-thioureas, -isothioureas, and -thiocarbamates as used in Specification 828,200 and (c) internal salts of isothiourea-alkane-sulphuric acids as used in Specification 762,257 may also be added to the bath in concentrations between 0À1 and 1 gm/litre as well as brighteners such as the organic disulphimides used in Specification 721,204, porepreventers such as sodium alkyl sulphates in a concentration of 0À2 to 3 gms/litre, and conducting salts e.g. inorganic alkali metal salts. Reference has been directed by the Comptroller to Specification 525,847.
Patent GB-153187-A (GB)
Title: Improvements in or relating to filing-devices or cabinets for gramophone records
IPC: A47B81/06
Filed: 1919-12-03
Abstract: 153,187. Warrington, J. Dec. 3, 1919. Contents, delivering and facilitating access to. -A cabinet or case for filing gramophone records comprises a set of compartments, of which the bottoms are constituted by curved levers B pivoted by dowel pins &c. at d<3> and controlled by springs e, which cause the records to be gripped between the levers B and a fixed abutment formed on cr by the top of the receptacle. A stop C limits downward movement of the levers B.
Patent GB-617842-A (GB)
Title: Hose reel
IPC: B65H75/44
Filed: 1946-10-11
Abstract: 617,842. Hose reels. WICKERINK, L. D. Oct. 11, 1946, No. 30410. Convention date, Oct. 12, 1945. [Class 99 (ii)] A hose reel 2, particularly for garden use, is rotatably mounted in a portable frame 1 and a swivel joint 4, 5 connects the supply union 3 to a radial pipe 6 leading to a union 7 which can either be joined to the hose 20 which is unwound from the reel as required for ordinary garden use or may be connected to a nozzle 21 while the reel is adjusted by a crank 8 to adapt the device for use as a sprinkler, Fig. 5. In the latter case the hose may connect the union 3 to a source 22. The reel comprises a drum 16 and truncated conical end members connected by a brace 15 and is provided with radial spokes 25. A brake 9, operated by a latching fever 10 and spring 12, serves to hold the reel in any desired angular position for use as sprinkler.
Patent GB-225386-A (GB)
Title: Composition for automatically repairing punctures in pneumatic tubes
IPC: C09K3/10
Filed: 1923-12-05
Abstract: 225,386. Rowlandson, E. S. Dec. 5, 1923. Air tubes and chambers. - A composition for automatically repairing punctures in pneumatic tyres consists of 25 parts of rubber, 10 parts of cork, 5 parts of sawdust, 60 parts of frosting glass or mica and distilled water in bulk equal to the solids. The water may be thickened with starchy material or may have added to it a small quantity of tragacanth, spirit, formalin or glycerine.
Patent GB-1003137-A (GB)
Title: Self-supporting motor vehicle body
IPC: B62D21/09
Filed: 1964-08-04
Abstract: 1,003,137. Vehicle bodies. F. A. E. PORSCHE. Aug. 4, 1964 [July 18, 1963], No. 30643/64. Heading B7B. A combined vehicle body and chassis 2 has side sills 5, 6 and a cut-out 7 for a rear engine, the floor plate 4 having a transverse stiffener 9 and being secured to the dashboard 10. The instrument panel 12 is integral with the scuttle 11. A front section 3 is secured to the section 2 by the longitudinal bearers 13, 14 which are secured to the underside of the floor 4 to form a box-section therewith. The bearers are extended upwardly adjacent the dashboard 10 to which they are also secured. The front section 3 has inner wheel housing panels 15, 16 to which the bearers 13, 14 are secured and the rear wall 19 of this section is spaced from the dashboard 10 so as to form a space 33 open at the bottom and in which accessories can be mounted and to which access is obtained by the cover 11. The luggage compartment 32 has a cover 34 and a spare wheel well 35.
Patent GB-631567-A (GB)
Title: Improvements relating to valve sacks or bags
IPC: B65D30/24
Filed: 1947-11-19
Abstract: 631,567. Sealing valve bags. MEDWAY PAPER SACKS, Ltd., and WINSKILL, J. W. Nov. 19, 1947, No. 30661. Addition to 591,577. [Classes 94(i) and 94(ii)] The method of sealing the valve opening of a valve bag or sack of the parent Specification which consists in applying a coating of a synthetic resin product to the inner surface of the tucked in flap which forms the valve or of a projecting sleeve secured thereto, flattening the valve mouth or sleeve to bring opposed resin-coated surfaces into contact, and applying heat to cause the surfaces to adhere, is modified by the substitution for the synthetic resin product, of a moisture-resistant adhesive composition comprising rubber or a rubberlike substance or mixture of such substances which can. be caused to adhere by the application of heat. The composition may comprise natural or synthetic rubber, Balata, or a synthetic rubber-like substance such as polyisobutylene.
Patent GB-230181-A (GB)
Title: Improvements in apparatus for atomizing liquid and for supplying compressed air to blast lamps, blowpipes and the like
IPC: B05B7/30
Filed: 1923-12-06
Abstract: 230,181. Howe, F. M. Dec. 6, 1923. Spray and blowpipe burners.-Apparatus for use as a portable atomizer or for supplying air to blast lamps, blowpipes &c. comprises a casing having a dependent handle, an electric motor 5 controlled by a switch 8 mounted on one side of the casing of the handle, and an air compressor on the other side so that the axis of the handle passes through the centre of gravity of the apparatus. The handle may be formed hollow to contain liquid to be sprayed in a transparent vessel 42. The air compressor comprises two cylinders 20 within which valved plungers 21, Figs. 3 and 5, are reciprocated by means of eccentrics 17 on the shaft 14 which is driven by means of worm gearing 12, 13 from the motor shaft, the return of the plungers being effected by springs 24 bearing on flanges 22. The flanges 22 are provided with projections 22<a> which engage slots 23 in the cylinder 20 to serve as guides. Air passing the spring-pressed valves 25 is forced into the cylinders 20 past ball valves 26 through the tube 28 to the liquid chamber 42. Liquid is forced up the tube 44 and is atomized in the nozzle 50 by air delivered by the tube 45. The handle is provided with a collar 54 to engage a bracket by which it may be supported.
Patent GB-1081485-A (GB)
Title: Improvements relating to apparatus for determining the dynamic elastic properties of a body
Inventor: JACKSON RONALD STEPHEN
IPC: G01N3/38
Filed: 1963-08-02
Abstract: 1,081,485. Acoustic measurement of physical properties. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 20, 1964 [Aug. 2, 1963], No. 30778/63. Heading H4D. Apparatus for determining the dynamic stiffness of a thin film 1, e.g. of varnish, comprises piezoelectric transmitting and receiving transducers 4 and 5 respectively between which is sandwiched the thin film 1 mounted on a relatively rigid backing plate 2, the film stiffness being proportional to the ratio of the voltages respectively applied to and generated by the transducers 4, 5. The transducers 4, 5 are clamped into cylindrical steel housing and electrostatic screening members (26, 27) (Fig. 2) by diaphragms (28, 29) respectively. The housings (26, 27) are secured in a frame (21), and the mounted film 1 is held in compression against the diaphragm (29) by means of a further diaphragm (30) and a projection (10) on the diaphragm (28). An audio-frequency input voltage V 1  is applied to transducer 4 from an oscillator 11, thereby transmitting vibrations through the projection (10) to the film 1 and resulting in an output voltage V 2  from the transducer 5. An amplifier 13 and potentiometer 12 provide output signals proportional to the voltages V 2  and V 1  respectively, which are then compared both in amplitude and phase by a bridge-circuit comprising a variable phase-shift network 15, 16, a mixer 17, and a null detector 18. The elastic and viscous components of the complex dynamic stiffness of the film 1 may be determined from the bridgebalance conditions: a mathematical treatment is given. Measurements may be made over a range of temperatures, and for oscillator frequencies above audio the frame (21) may be replaced by a pair of independently suspended inertial masses.
Patent GB-1366618-A (GB)
Title: Device for compensating the drift of a voltage stored in a capa citor
IPC: G11C27/00
Filed: 1972-06-30
Abstract: 1366618 Capacitor storage circuits COMMISSARIAT A L'ENERGIE ATOMIQUE 30 June 1972 [5 July 1971] 30817/72 Heading H3T The leakage from a storage capacitor 2 via the input of a unity gain amplifier 3 which draws a constant input current is reduced by amplifying the voltage applied to the capcitor by a factor k, dividing the output of the amplifier by k so that the overall gain is unity and by feeding back from the amplifier output to its input a current equal to the amplifier input current. The amplification by k and division is effected by 1 and 5 and the required feedback current is provided by adjusting the offset in the unity gain amplifier.