baber/WOPTO huggingface dataset:
Patent GB-523787-A (GB)
Title: Improvements in and relating to electric wave systems
IPC: H03G7/00
Filed: 1939-01-13
Abstract: 523,787. Automatic volume control. TELEPHONE MANUFACTURING CO., Ltd., and PADDLE, L. H. Jan. 13, 1939, No. 1210. [Class 40 (iv)] In a volume range compressor or expander, using a network of non-linear impedances in the transmission path the attenuation of which is controlled over a path connected to the input or output compressor or expander respectively, a further network of non-linear impedances is included in the control path, both networks being controlled in accordance with the amplitude of the signals in' the control path. The invention is applicable to telephone systems, with or without radio links, radio broadcast systems and gramophone recording and reproducing systems. In the compressor shown in Fig. 1a, the output of rectifier M5 in the control path, fed over pad AP2 from the input 10, is applied over circuits including separate bias batteries B1, B2 to attenuating networks of metal rectifiers M1. M2 and M3, M4 in the transmission and control paths, a circuit C1, R1 of suitable time constant being included in the control path. The characteristic of the control depends on the initial bias voltages and may also be varied by controlling the ratio of control current passing to the two networks. Normally, the attenuation in the transmission path is small and that in the control path large, the attenuators being inversely controlled. The expander shown in Fig. 1b is similar but is controlled from the output side and both attenuators are normally of high impedance, a common bias battery being employed. Instead of networks in a loop circuit between transformers, the networks may be associated with a third winding of a transformer, Fig. 2 (not shown). Figs. 3a and 3b (not shown) comprise a compressor and expander in which shunt non-linear impedances are used in the transmission path and series impedances in the control path and vice-versa, the transmission and control paths being decoupled by resistance-capacity connections. The characteristics of the attenuators are such that a linear compression or expansion and a non- distorted overall characteristic is produced.
Patent GB-246160-A (GB)
Title: Pressure and suction distributing mechanism for milking machines
IPC: A01J5/10
Filed: 1926-01-15
Abstract: 246,160. Remy, r. Jan. 16, 1925, [Convention date]. Cow-milkers. - A pressure and suction distributing-mechanism for milking-machines is so constructed that periods during which suction is applied to front milking cups and compressed air to rear milking.cups alternate with periods during which compressed air is suppled to the front cups and suction to the rear ones, suction being also applied continuously to the flexible or suction element of each of the milking cups. This continuous suction is established through conduits g; on the other hand, owing to the action of a cylinder and ported-slide device a, m, compressed air from a conduit d and suction from a conduit e are alternately put into communication with nipples f and f<1>, which are connected with the spaces between the casings and suction elements of the front and rear cups. The conduit d is connected to two ports l, Fig. 4, and the conduit e to two ports k and to two other ports k<1>; and, when the slide m is in the position shown in Fig. 7, compressed air passes to the nipples f by way of the right-hand port l, port m<1>, Fig. 5, in the slide, and a port o, Fig. 6, in the cover n, and the suction conduit e is connected to the other nipples by way of the right-hand port k, port m<2> in the slide, and a port p in the cover n. When the slide is moved to the opposite end the action is reversed and compressed air passes to the nipples f<1> and there is suction in the nipples f. For effecting movement of the slide it is provided with U-tubes h, h<1> and with ports h<2>, h<3> one or the other of which comes into register with one or the other of suction ports k<1>: in this way a piston b in the cylinder a is drawn along to engage the inturned end of the tube h<1> or h and then presses forward the tube and with it the slide and the other tube. Openings i, i<1> are formed in the tubes and control valves r, r<1> may be provided.
Patent GB-309624-A (GB)
Title: Improvements in tray conveyors
IPC: B65G17/20
Filed: 1928-01-13
Abstract: 309,624. Main, J. A., Main, G. A., and Main Ropeways, Ltd. Jan. 13, 1928. Endless-rope conveyers with articulated receptacles; auxiliary ropes.- A series of articulated trays 1 is supported on haulage ropes 2, 3 by feet 4, 5 provided on each side with depending pivoted arms 6 which normally hang down and prevent them from sliding off the ropes. The ropes are supported by idle pulleys 7, 8 mounted at the ends of a sleeper 9. Where the conveyer is to be deflected out of a straight line sleepers 10 are provided carrying idle pulleys 11, 12 whose'axes are arranged obliquely to the horizontal.
Patent GB-763707-A (GB)
Title: Improvements in or relating to gas refrigerators operating on the reversed hot gas engine principle
IPC: F25B9/00
Filed: 1955-01-14
Abstract: 763,707. Refrigerating. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Jan. 14, 1955 [Jan. 15, 1954], No. 1235/55. Drawings to Specification. Class 29 A reversed hot gas engine is so constructed that the ratio between the swept volumes of the spaces of higher and lower temperatures respectively is at least 1 + 0.025T and at most T, where T is the ratio of the absolute temperatures of the cooler and freezer respectively.
Patent GB-1434431-A (GB)
Title: Snap connectors for interconnecting pipes and the like
IPC: F16L37/22
Filed: 1973-01-09
Abstract: 1434431 Pipe couplings HOZELOCK Ltd 14 Dec 1973 [9 Jan 1973] 1238/73 Heading F2G As spigot 5 is inserted into socket 2, of a quick release pipe coupling, detents 8 are tilted, so that their arms 12 compress spring 17, until the detents can be returned thereby into the engaged position (Fig. 9). To release the spigot 5, sleeve 19 is moved axially to recompress spring 17 and allow the detents 8 to move radially outwardly, without tilting (Fig. 10).
Patent GB-671555-A (GB)
Title: Improvements in or relating to liquid-fuel burners
IPC: F23C99/00
Filed: 1950-01-17
Abstract: 671,555. Liquid-fuel burners; electrically igniting burners. BERGER, G. J. O. WELIN-. Jan. 17, 1950 [Aug. 5, 1949], No. 1254/50. Classes 75(i) and 75(iii) A liquid-fuel burner of the perforated shell type is provided with a fuel preheating device comprising a U-tube 4, through which liquid fuel is supplied to an annular fuel distributing chamber 5, and which is located in proximity to an electric heating element 14, liquid fuel being passed through the U-tube 4 from a supply tube 1 to an annular distributing chamber 5 from which the vapour is emitted through apertures 6 to be ignited by a filament 16 in series with the element 14. The filament 16 is connected by a wire 20 to earth through the inner shell 9. After combustion has been established the electric supply to the element 14 and filament 16 is interrupted either manually or by thermostatic control means.
Patent GB-810531-A (GB)
Title: Packaged foodstuffs
IPC: A21D10/00
Filed: 1957-01-14
Abstract: Dry cake mixture &c. ingredients are enclosed in a liquid-proof bag having a capacity much greater than the volume of the ingredients so that liquid may be poured into the bag, its mouth closed and a batter produced by agitation of the bag and contents. The bag containing the ingredients may be enclosed in a carton with the excess bag material folded or rolled beneath the carton closure, or if the bag is not so enclosed, the excess material may be rolled up or folded on to one face of it and secured by adhesive tape or a metal closure.ALSO:Dry cake mixture &c. ingredients are enclosed in a liquid-proof bag having a capacity much greater than the volume of the ingredients so that liquid may be poured into the bag, its mouth closed and a batter produced by agitation of the bag and contents.  The bag containing the ingredients may be enclosed in a carton with the excess bag material folded or rolled beneath the carton closure, or if the bag is not so enclosed, the excess material may be rolled up or folded on to one face of it and secured by adhesive tape or a metal closure.
Patent GB-346706-A (GB)
Title: Improvements in and relating to aircraft wheel brake controls
IPC: B64C25/48
Filed: 1930-01-15
Abstract: 346,706. Aircraft brakes. BRUCE, R. A. and PETTERS, Ltd., Westland Aircraft Works, Yeovil, Somerset. Jan. 15, 1930, No. 1429. [Class 4.] An aircraft wheel 1 brake mechanism d e - signed to permit differential control of the brakes by means of the rudder comprises a pair of rudder control pedals a, b coupled by rods c, d to a see-saw member e which is in turn coupled through lost motion devices to a second see-saw member f, the arms of which are connected respectively by extensible connecting members to port and starboard wheel brakes, and the fulcrum of which is capable of translational movement under control of a hand-lever m. As shown in full lines, with lever m in the " off " position rocking of the member e does not affect member f, when however the lever m is moved to the " on" position movement of the rudder pedals causes rocking of the member f to reduce the tension of the brake cable operating the brake on the side of the aircraft on the outside of the desired turn and to increase that in the other. Each brake cable is formed in two parts p, t connected by a spring box device n. Movement of the part t to apply the brakes is limited by a stop u which is caused to abut against a fixed guide s. When, therefore, the brakes are fully applied and both stops u are bearing on the respective guides rocking the member f has the effect of slackening off one brake cable and of extending the spring in the spring box device n of the other leaving the braking pressure on that side unaltered. According to the Provisional Specification the see-saw lever e may constitute the rudder bar.
Patent GB-1455771-A (GB)
Title: Process for the hydration of olefins to form alcohols
IPC: C07C29/08
Filed: 1974-01-11
Abstract: 1455771 Ethanol and propanol; hydration of olefins VEBA-CHEMIE AG 11 Jan 1974 [11 Jan 1973] 01462/74 Heading C2C In the preparation of ethanol or propanol by the hydration of ethylene or propylene in the presence of a supported phosphoric acidcontaining catalyst; a mixture of steamvolatile by-products and alcohol is obtained by hydrating ethylene in a molar water : olefin ratio of 0À1-0À3 : 1 at 190-230 C. under 60-80 atmos. G, or propylene in a molar water: olefin ratio of 0À1-0À2 : 1 at 140-170 C. under 20-45 atmos. G, separating the byproducts from the alcohol by washing with water in an extraction column, condensing the top product from the extraction column to form an aqueous solution of by-products, separating the unreacted olefin from the said aqueous solution and recycling the said aqueous solution, without a liquid organic phase, to the synthesis process.
Patent GB-284455-A (GB)
Title: Improvements in or relating to milk prams, hand trucks, barrows and the like
IPC: B62B3/12
Filed: 1927-01-18
Abstract: 284,455. Sugg, r. Jan. 18, 1927. Springs and wheels, arrangement of; guiding vertical play. - Relates to milk-prams, handtrucks, and like vehicles having a pair of main wheels journaled on a non-rotatable axle supporting the body through helical springs, one end of the body being mounted on an auxiliary guidewheel which slides on an axle against the action of helical springs carried on the axle at each side of the wheel. The main axle e is formed near each end with a hole g through which passes an upright rod c secured to the body and carrying a helical spring h bearing against the axle, and the axle m of the auxiliary wheel l is resiliently mounted on leaf springs n. The holes g may have renewable bushes and the axle e may pass through or beneath the body and may be cranked. As shown, the upper end of each rod c is secured to the horizontal flange of a bracket b on the body and downward movement of the axle is limited by a nut c', the springs, if desired, being under initial compression. The axle is provided at each end with a guide-block i sliding in guides j on the body, or alternatively, the lower ends of the rods c are secured to the body. The rods and springs may be arranged within the body or recesses in the sides of the body. According to the Provisional Specification, the vehicle may have more than two main wheels and an auxiliary wheel at each end.
Patent GB-1128861-A (GB)
Title: A spirit level device for simultaneously checking whether two surfaces disposed normal to each other are disposed truly vertical or horizontal
IPC: G01C9/28
Filed: 1966-01-12
Abstract: 1,128,861. Levels. F.A. GRIFFIN. Nov.8, 1966 [Jan. 12, 1966], No.1498/66. Heading G1F. A device for checking, for simultaneously checking the position relative to the vertical or horizontal of two faces disposed normal to one another e.g. an internal or external corner of a building, comprises two spirit levels 10, 11, secured together at right angles to each other by a pair of spaced plates 18 each having a pair of flanges 19, 20 at right angles to one another, the levels 10, 11 being secured to the flanges by hook members 23 and nuts 24. Alternatively to the use of the plates 18, the flanges may be integral with the levels 10, 11.
Patent GB-1158647-A (GB)
Title: Improvements in or relating to Supplying Wire from a Coil
IPC: B21C49/00
Filed: 1967-01-11
Abstract: 1,158,647. Unwinding wire and other filamentary material from a coil. NATIONAL STANDARD CO. 11 Jan., 1967 [18 Feb., 1966], No. 1498/67. Headings D1F and D1J. An apparatus for feeding wire or natural or synthetic filaments from a supply source 5 to a place of use 65 includes feed means 18, 25 and 30 for withdrawing wire 10 from source 5, means 30 being rotatably driven by motor 33 to rotate about a horizontal axis 32 so as to feed the wire approximately vertically into a vertically extending chamber 55 of accumulating means 50 to form the wire into an elongated loop for subsequent passage outwardly of the open end through wire guide 72 to place of use 65. The path of the wire from means 30 and through the accumulator is all in a common vertical plane and hence no torsional stresses will be imposed on the wire. Further, the disposition of the means 18, 25, and 27 is such as to impart a twist to the wire so freeing it of torsional stresses before it is accumulated. The means 18 and 25 are carried on a pivotally mounted festoon arm 19. An idler 40 adjacent means 30 is spring biassed to engage into a peripheral groove of means 30 so that the wire is in contact w.ith means 30 over preferably 330. Side 62 of the chamber 55 against which the wire engages is movable to adjust the width of chamber 35.
Patent GB-1378934-A (GB)
Title: Detergent composition
IPC: C11D3/00
Filed: 1972-01-12
Abstract: 1378934 Detergent compositions HELIOSKEMISK-TEKNISKA FABRIKER AB 12 Jan 1972 [15 Jan 1971] 1500/72 Heading C5D A detergent composition, which is free or substantially free from components which in aqueous solution contain calcium and/or magnesium precipitating ions, contains (A) 0À5 to 95% wt. of one or more surfactants selected from (i) electrically neutral, polar agents and (ii) carboxylic acids condensed with ethylene oxide and/or propylene oxide and (B) 0À5 to 98% wt. of one or more builders, with or without one or more added fillers, which builders and fillers (if any) substantially do not react with calcium or magnesium ions to form compounds which precipitate as solids or become adsorbed on the surface of a substrate being washed during cleaning or rinsing when said detergent composition is used to wash said substrate, said builders being selected from those compounds. which in water ionize to at least one anion. selected from the following:- wherein R 1  is C n H 2n-x  or C n H 2n-x-1 Z y ; Z is OH; NH 2 , NHR 3 , SO 3 Me, C n H n+1-x , halogen or phenol; R 2  is C n H 2n-x ; R 3  is C n H 2n+1-x  or: C n H 2n-x Z y ; Me is sodium, potassium, lithium, ammonium, hydrogen or one valence of the ions Mg<SP>2</SP> +  or Ca<SP>2</SP> + ; n is 1 to 22; x is zero or 1 to 10; y is 1 to 10. Preferably, the composition contains 5 to 30% by wt. of component (A) which is a C 12  to C 20  fatty alcohol condensate with 8 to 30 moles of'ethylene oxide and 10 to 65% by wt. of component (B) which is a salt of a C 2  to C 12  carboxylic acid, e.g. disodium adipate. Acids of component (B) may also be maleic, succinic, tartaric and sebacic. The builder (B) may be in the form of the acid, a salt with an alkali metal, NH 4  or an organic base or may.be esterified wholly or in part with a mono-, di- or polyhydric alcohol. Up to 10% of other surfactants and up to 15% of conventional inorganic and organic builders may be present, together with conventional additives e.g. urea peroxide, ethanol, alkylolamides, potassium dichloroisocyanurate and ammonium persulphate.
Patent GB-666705-A (GB)
Title: Improvements in or relating to public address apparatus
IPC: H04B5/00
Filed: 1949-01-19
Abstract: 666,705. Public address systems. TAYLOR, P. H., and PAMPHONIC REPRODUCERS, Ltd. March 30, 1950 [Jan. 19, 1949], No 1559/49. Class 40 (iv). [Also in Group XL (c)] In a public address system comprising one or more downwardly-directed loud-speakers which are fastened under chairs, pews, &c., and inductively coupled to an audio frequency source over adjacent primary and secondary coils, the use of intermediate amplifiers between the secondary coils and the loud-speakers to provide an adequate power output is avoided by reducing the self-inductance of each coil and hence improving the coupling coefficient, either by spacing each coil turn apart or by forming the coils from a single loop of strip or tubular metal. As shown, the primary coil 1 is located beneath the floor 2 with each turn vertically spaced about 10 inches apart, while the secondary coil comprises a single loop of verticallymounted strip metal 5 embracing a row of chairs and having a narrow portion 8 accommodating a coupling transformer 7 for a loudspeaker 9. Several primary coils may be used, each coil enclosing an area of about 1000 square feet and connected so that the currents in adjacent coil sides are in the same direction. In an alternative arrangement, the coils may be constituted by a metal coating on a wall or other surface. Where suspended loud-speakers are used, the secondary coil may be a square tunnel of copper sheet or a large diameter sheetmetal ring, and the primary loop may be wound outside the building. The primary coils are fed from an amplifier 3 and the lowfrequency coil loading is reduced by a high-pass filter or constant-impedance network. Preemphasis of the high frequencies may also be provided.
Patent GB-794854-A (GB)
Title: Improved non-return valve for vacuum conduits
IPC: F16K15/14
Filed: 1956-01-17
Abstract: 794,854. Valves. AKTIEBOLAGET MANUS. Jan. 17, 1956 [Jan. 17, 1955], No. 1583/56. Class 135. A vacuum tube 9 is connected to a receptacle 1 via a non-return valve comprising a casing 2 fixed to an opening in the receptacle and having an outer conical wall which fits into a cone in the housing 5 to which the tube 9 is connected. The valve body comprises a cupshaped member 7 which fits like a cap over the inner wall 4 of the casing 2. The base of the member 7 is spaced from the wall 4 and its wall is tapered to a diameter smaller than that of the wall. With atmospheric pressure in the tube 9 and the receptacle 1 the wall of the member 7 tightly engages its seat but when the tube 9 is connected to a vacuum the wall of the member 7 is moved from its seat to allow air to pass from the receptacle 1 into the tube 9.
Patent GB-923908-A (GB)
Title: Improvements in or relating to medical treatment chambers
Inventor: CROASDAILE FREDERICK GEORGE
IPC: A61G10/04
Filed: 1961-01-13
Abstract: 923,908. Oxygen tents. OXYGENAIRE (LONDON) Ltd. Jan. 11, 1962 [Jan. 13, 1961], No. 1593/61. Class 81 (2). An oxygen tent comprises a flexible canopy 16 attachable to the head and foot of a bed and a container 14 which houses means for cooling and supplying vapour to the atmosphere in the canopy and has means for attaching to the bed so that its upper end projects from the canopy. The container has hooks for securing to the bed and is divided into two compartments 26, 27. One compartment 26 for containing ice has upper and lower openings 28, 29 for communication with the interior of the canopy and a drain hole 35 above the bottom. An inclined drip tray 31 is secured below the container, a tube 33 serving to drain water in the tray to a container 34 outside the canopy. The second compartment 27 receives a fitting 43 which includes nozzles 57, 59 to which oxygen cylinders or air compressors may be attached. The nozzles are connected by tubes 56, 58 to ejector nozzles 52, 53 supported in a bar at the lower end of a rigid curved tube 44 the upper end of which communicates with the canopy interior through a hole 45 in the container. A tube 61 depends from one of the ejector nozzles into the bottom of the second compartment which may contain a liquid which is drawn up the tube 61 by gas ejected from the nozzle and delivered to the canopy interior in atomized form. The liquid may be water from the ice compartment 26 which can flow into the second compartment through a valve comprising a horizontal tube 37 having an aperture 39 and a second apertured tube 38 rotatable by a knob 42 in the horizontal tube to bring the apertures into or out of register. The canopy is made of flexible transparent thermoplastic sheeting and has a flat rectangular top and flat side and end walls. The canopy is held taut between the head and foot of the bed by hooks 17 at one end and elastic cords 18 with co-operating hooks 19 at the other end. Slide fasteners 22 permit access to the canopy interior.
Patent GB-635820-A (GB)
Title: Improvements in pumping and propelling mechanism
IPC: B63H11/00
Filed: 1948-01-07
Abstract: 635,820. Explosion apparatus. STOPFORD, C. W., and MILLS, G. H. S. Jan. 7, 1948, No. 1599/49. Divided out of 635,765. [Class 102(ii)] A propelling device comprises an internal combustion cylinder 1, into which water is admitted through a non-return inlet valve 16, and from which, after the explosion, water is expelled through a venturi nozzle 27 into the jet pipe 56 past a spring loaded non-return valve 60. Movement of the valve 16, through the switch 30, controls the ignition of fuel in the cylinder admitted through the valve 6. Operation of the device is commenced by lifting and depressing the plunger 54.