baber/WOPTO huggingface dataset:
Patent GB-293825-A (GB)
Title: A device for the control of the level of the electrolyte in accumulator batteries
IPC: H01M50/569
Filed: 1928-04-03
Abstract: 293,825. Soc. des Accumulateurs Electriques Anciens Etablissements A. Dinin. July 13, 1927, [Convention date]. Liquid-level indicators, applications of.-An accumulator is provided with a metal cover having on its under surface a projection with which the electrolyte makes contact when at the correct level and completes an external circuit containing an audible or visual signal device such as a bell, lamp or electromagnetic indicator. Fig. 1 shows the cover of an accumulator having a projection P and a plug T for engagement with a socket C on a cable F. The latter is connected to a lamp L as shown in Fig. 5 and the circuit is completed through a switch B and conductor F connected to a pole of the battery. Fig. 4 shows an arrangement for testing individual cells of a battery on a motor vehicle. The circuit through any one cell is completed by placing a lamp L in a pair of sockets 1, 1<a> etc. in a panel A mounted on the dashboard of the vehicle. The lamp when not in use is held in a pair of insulated sockets R.
Patent GB-636725-A (GB)
Title: Multi-stage radial turbine for gas turbine plants
IPC: F02C6/00
Filed: 1948-04-09
Abstract: 636,725. Gas turbine plant. MASCHINENFABRIK OERLIKON. April 9, 1948, No. 10023. Convention date, May 22, 1947. [Class 110(iii)] A multi - stage inward radial flow gas turbine is provided with reheating between the stages. The working fluid is conveyed from one stage to the next by equally spaced pipes 4 and in one or more of these pipes reheating chambers 3 are included. In the example shown, there are four such pipes, one being below the foundation level. The reheating may be by burning fuel from nozzles 31 in the working fluid or by forming the chambers 3 as heat-exchangers. In the latter case, heat may be provided by furnace gases from outside the plant.
Patent GB-976622-A (GB)
Title: Improvements in flame monitoring apparatus
Inventor: DUMPLETON OWEN WALTER
IPC: F23N5/08
Filed: 1960-03-22
Abstract: 976,622. Controlling burners. BABCOCK & WILCOX Ltd. March 20, 1961 [March 22, 1960], No. 10046/60. Heading F4T. [Also in Division G1] Flame monitoring apparatus responsive to fluctuations in the output of a photo-cell has means which vary the response of the photo-cell to compensate for variations in the efficiency of light transmission to the photo-cell. Light from the flame is incident upon a photo-resistance 21, Fig. 4, the mean current through which energizes a galvanometer 30 which positions a vane to maintain the average amount of light incident upon photo-resistance 21 substantially constant. The alternating component of the voltage across photo-resistance 21 is amplified and rectified and supplies to indicator or control means 43 a D.C. voltage proportional to the ratio of the fluctuations of light intensity of the mean intensity. This is indicative of the flame stability. In an all electronic compensating system, Fig. 5, the photo-resistance 21 is connected in series with a transistor 64 which tends to maintain the photo-current constant. Since the photoresistance is of a type in which the ratio of voltage fluctuation to light fluctuation increase with increase in current the current must be reduced somewhat with reduction of the incident light. This is achieved partly by mismatch between the photo-resistance and the transistor 69 and partly by the feedback connection from the emitter of transistor 72 through a Zener diode 71 to the base of transistor 64. Specifications 780,653 and 976,621 are referred to.
Patent GB-308836-A (GB)
Title: Improvements relating to the manufacture of pottery ware
IPC: B28B7/12
Filed: 1928-01-23
Abstract: 308,836. Miller, W. J. Feb. 24, 1927, [Convention date]. Divided on 285,871, [Class 87 (i), Bricks &c.]. Drawings to Specification. Extrusion machines.- The Specification as open to inspection under Sect. 91 (3) (a) describes the use of suction for facilitating the feeding of clay to a mould through a die member and preventing the adherence of the clay to such die. This subject-matter does not appear in the Specification as accepted.
Patent GB-365887-A (GB)
Title: Improvements in or relating to two stroke internal combustion engines
IPC: F02B33/12
Filed: 1931-04-02
Abstract: 365,887. 'Two-stroke engines. DOPSON, W. E., 15, Thornton Road, Mortlake, London. April 2, 1931, No. 10124. [Classes 7 (ii) and 7 (vi).] Valves; valve gear.-In a twostroke engine compressing the charge behind the piston, the admission of the charge from the crank case to the pump chamber G through an opening B is controlled by a flat slide valve D attached by a ball joint C to the connecting- rod and pressed against its seating by springs, the charge being compressed on the outstroke of the piston through the usual transfer port, H controlled only by the edge of the piston. In a modification, the slide valve is arranged in a box fixed between the cylinder and crank case. The invention may be applied to opposed-cylinder, radial-cylinder, or other multicylinder engines.
Patent GB-527112-A (GB)
Title: Improvements in or relating to converting arrangements employing electric discharge devices
IPC: H02H7/127
Filed: 1939-03-31
Abstract: 527,112. electric discharge apparatus for converting. WESTINGHOUSE ELECTRIC INTERNATIONAL. CO. March 31, 1939, No. 10145. Convention date, March 31, 1938. [Class 38 (ii)] In a converting arrangement comprising a grid controlled discharge device, the grid potentials for which are supplied from an impedence network, there is provided an auxiliary valve which modifies the impedence of an element of the network to cause blocking or partial blocking of the main discharge device when a back-ignition or overload occurs. The impedence network comprises a resistance-inductance network 10 and series impedence elements 18, 19, and the grid transformer 28 is connected to tappings on the network 10. When back-ignition occurs a valve 40 is rendered conductive by means of a coil 44 linking the D.C. circuit, and short circuits the impedence 19. This shifts the phase of the grid potentials sufficiently to block the discharge device 21. A relay 46 energized by the valve 40 breaks the circuit a predetermined time after energization to permit the valve 40 to become non-conductive. If an overload occurs the impedence 19 is short circuited by means of a relay 50 energized from the D.C. circuit. The impedence network is supplied through a phaseshifting device 36 which may include a positive sequence voltage network as described, for example, in Specification 161,167, [Class 38 (v)].
Patent GB-586998-A (GB)
Title: Improvements in or relating to potato or the like harvesting machines
IPC: A01D33/06
Filed: 1944-05-25
Abstract: 586,998. Potato harvesters. JOHNSON, T. S., and JOHNSON'S (ENGINEERING), Ltd. May 25, 1944, No. 10145. [Classes 6 (i) and 6 (iii)] A machine for harvesting potatoes or other crops comprising a digging share co-operating with a lifting conveyer, and a pair of rotatable discs mounted in front of and one on each side of the share, has the discs mounted on separate axles and is provided with means for independently adjusting the angles of inclination of the two discs to the direction of motion of the machine. In the machine shown each disc 5 is mounted on a stub shaft 4 the bearing of which is mounted for pivotal movement in a bracket 7 which can swing about a fixed axis 8. The shaft 16 of the bearing has an arm 18 to which is connected an adjustable link 19 whereby the inclination of the disc to the direction of travel may be varied. The brackets 7 are hooked over and suspended by links 9 having adjustable connections with arms 10 carried by a cross shaft 11. This shaft has an arm 12 connected by a, link 13 to a hand lever 14 which thus serves to raise or lower the discs. A further lever 27 is connected by links as shown to the digging share 2 and digger frame 3, which supports an endless conveyor for the potatoes and soil, for adjusting their height. The discs may rotate by their contact with the ground or, alternatively, they may be positively driven.
Patent GB-1240249-A (GB)
Title: Automatic machine for milling slots in fastener elements
IPC: B23G9/00
Filed: 1970-03-03
Abstract: 1,240,249. Shoots. DZUS FASTENER CO. Inc. 3 March, 1970 [26 March, 1969], No. 10187/70. Heading B8S. [Also in Division B3] In an automatic milling machine work blanks 20 are supplied to an indexing station 100, Fig. 7, from a vibratory hopper 31, via a shoot 32. Aligned tubes 128, 128a are placed on opposite sides of the shoot, and when work blanks lie within the shoot above the tubes, the flow of air from the tubes to a switch 141 is obstructed, and the hopper is not vibrated. However, when the air flows, due to the reduction in the number of blanks in the shoot, the hopper is vibrated so as to supply additional blanks. A pivotable gate 41 is provided so as to supply single blanks to the indexing station, and this gate is actuated by a cam 127, which co-operates with a follower 126, carried by a rod 45.
Patent GB-399732-A (GB)
Title: Improvements in cameras for taking instantaneous colour photographs
IPC: G03B33/00
Filed: 1933-04-05
Abstract: 399,732. Cameras for colour photography. ZIMMER, J., Haus Bergfrieden, N³rburg, Ahrweiler, Rhineland, Germany. April 5, 1933, No. 10240. Convention date, April 19, 1932. [Classes 97 (i), 98 (i), and 98 (ii).] A camera for taking instantaneous colour photographs, especially for photographing the iris of the eye, in which at least one transmitting reflector is provided for dividing the light passing through the objective, is provided with a non-transmitting reflector arranged behind the objective at an angle to the optical axis to reflect light to a focusing screen, the reflector being movable transversely of the optical axis and coupled to a roller blind shutter so as to be removed from the optical axis by the movement of the shutter. In the form shown, the reflector 12 is carried by a roller blind shutter 16, having an exposure opening 17, and reflects light to a focusing screen 13 mounted in the top of the camera. A lighttight bellows 25 connects the reflector with the opening containing the screen 13. To operate the reflector two bands 20 are provided, connected to a spring drum 23 provided with winding and locking means, not shown. For photographing the iris of the eye, two light sources, not shown, are provided on opposite sides of the objective 5, one of which provides a weak light for focusing and the other, which may be an electrically operated flash-lamp, provides a powerful light of short duration for the exposure. The latter lamp is operated by a pair of contacts 28, 29 closed by the passage of the reflector 12. In the form shown a single transmitting reflector 11 is used which reflects light to the layers 9, 10 sensitive respectively to blue and yellow-green light and transmits light to the layer 8 sensitive to red light. In a modification, light from the reflector 12 passes to a second mirror and thence to a vertically arranged focusing screen. Two transmitting reflectors may be used, the sensitive layers 9, 10 being then separated. The transmitting reflectors may be of glass superficially silvered or of thin transparent cellulose sheets, and may be coloured, if desired.
Patent GB-495478-A (GB)
Title: Improvements relating to means for testing the electrical ignition systems of internal combustion engines
IPC: F02P17/02
Filed: 1937-04-10
Abstract: 495,478. Testing ignition. NAPIER & SON, Ltd., D., and RAMSAY, F. R. F. April 10, 1937, No. 10251. [Class 7 (iv)] A telephone receiver G, L, is coupled to the primary or secondary circuit and means such as a rheostat E is provided for progressively reducing the current supplied to the sparking- plugs. Coupling may be through a transformer D, or the indicator may be arranged in a circuit containing a resistance H and condenser K with the rheostat M in shunt. These two arrangements may be combined. Specification 495,547 is referred to.
Patent GB-498970-A (GB)
Title: Improvements in or relating to domestic fireplaces
IPC: F24B1/18
Filed: 1938-04-04
Abstract: 498,970. Firebars. THYNNE, Ltd., H. & G., and CRUSE, G. H. l. April 4, 1938, No. 10263. [Class 51 (i)] [Also in Group XI] In an open domestic fireplace operating under down-draught and with a grate consisting of separate removable fire bars k, l some of which are fixed and some movable longitudinally by a single handle q, the movable firebars are all operated by means of a bar n which can be reciprocated in a plane parallel to that of the firebars. The bars k, l rest on a fixed rod m and on the rod n, which is movable in slots p at the sides of the grate under the action of the handle g. The bars k, l, which are all of the same shape, are arranged so that the lugs r on their under surfaces engage the rods m, n alternately from one bar to the next. In front of the bars k, l is a horizontal dead-plate s, which is accessible for the removal of clinker through a door t.
Patent GB-874612-A (GB)
Title: Improvements relating to the catalytic reforming of petroleum hydrocarbons
IPC: C10L1/06
Filed: 1957-03-29
Abstract: Petroleum fractions containing straight run material boiling below 100 DEG C. are reformed over a chromia-alumina catalyst containing 5-25% of chromia based on total catalyst stable at 1020 DEG F. at 0.1-1.0 vol./vol./hr., 480-575 DEG C. and up to 50 p.s.i.g. in the absence of added hydrogen, recycle or extraneous, to effect dehydrogenation and dehydrocyclisation of acyclic paraffins. Preferably the product has a volatility of at least 40% evaporated at 100 DEG C.  The catalyst used may be promoted with a rare earth and an alkali metal, or boron, bismuth, lanthanum or germanium with or without an alkali metal, or a spinel such as cobalt, copper or iron chromite or zinc titanate in an amount less than the chromium oxide present.  Specfications 802,116, 822,197, 827,000, 828,934 and 830,790 are referred to.ALSO:A gasoline blending component is prepared by reforming a petroleum fraction containing straight run material boiling below 100 DEG C. over a chromia-alumina catalyst at 0.1-1.0 vol./vol./hr., 480-575 DEG C. and up to 50 p.s.i.g. preferably in the absence of added hydrogen (see Group IV(b)).  The product, which preferably has a volatility of at least 40% evaporated at 100 DEG C., may be blended with higher boiling gasoline components such as a platinum reformate or fraction thereof or a polymer gasoline prepared from C4 hydrocarbons.  The ratio by volume of lower to higher boiling component may be 90:10 to 10:90.  Tetraethyl lead may also be included.  Specifications 802,116, 822,197, 827,000, 828,934 and 830,790 are referred to.
Patent GB-165261-A (GB)
Title: Improvements in notice boards and the like
IPC: G09F7/02
Filed: 1920-04-14
Abstract: 165,261. Coast, A. J. April 14, 1920. Signs, supporting and securing.-A board for displaying removable letters and the like con. sists of three sections. The front and rear sections consist of parallel strips A, B, C and the middle section, Fig. 1, consists of a top horizontal strip 1, an inverted T-shaped filling-part 2, and side pieces 3, 3<a>, 4, 4<a> which are cut at an angle along one edge. Neighbouring side pieces 3, 4 are attached at 3<x>, 4<x> to alternate strips AB. The upper edges of the strips B, C are rabbeted to.receive inverted U-shaped arms or hooks on the letters. When the top and bottom of the board are pulled, the horizontal strips come apart until the oblique edges of the side pieces 3, 3<a> contact, thus enabling the letters to be inserted.
Patent GB-672073-A (GB)
Title: Prophylactic for venereal disease
IPC: A61K33/00
Filed: 1950-04-27
Abstract: Alkali metal C8-C18 alkyl sulphates, e.g. sodium lauryl sulphate and alkali metal aralkyl sulphonates, e.g. sodium decyl benzene sulphonates, are purified by heating under a vacuum of at least 1 mm. of mercury in stages of (a) 12 hours at 155 DEG  F. (removes water and ketones); (b) 24 hours at 175 DEG  F. (removes part of higher boiling alcohols); and (c) 24 hours at 195 DEG  F. (removes high-boiling alcohols, organic acids resulting from the oxidation of the alcohols and free mineral acid).  The procedure may be modified.
Patent GB-107669-A (GB)
Title: Improvements in and connected with Chesterfields and Chairs having Adjustable Backs or Sides.
Inventor: TAYLOR GEORGE ROWLAND
IPC: A47C1/03
Filed: 1916-07-24
Abstract: 107,669. Taylor, G. R. July 24, 1916. Seat and sofa adjustments.-An adjustment for the back or side of a Chesterfield or chair comprises a notched bar c pivoted to the fixed frame controlled by a spring e and engaging a pin d on the hinged portion. The bar is released from engagement with the pin by means of a pivoted cross-bar f having thereon a curved flexible member g which engages the bar c.
Patent GB-344690-A (GB)
Title: Treatment of aldehyde-amines
Filed: 1930-04-01
Abstract: The deterioration of aldehyde-amine condensation products is retarded by the addition of a small amount of a polyhydroxy or substituted polyhydroxy aromatic compound, such as catechol, resorcinol, pyrogallol, hydroquinone, mono- or dichlorohydroquinone or dinitrosoresoricinol.  The condensation products may be treated either alone or when mixed with other substances, and the treatment is particularly useful for retarding the deterioration of the products when mixed with rubber in a master batch awaiting further treatment.  In an example, hydroquinone is added to the condensation product of heptaldehyde and aniline.  Specification 181,365, [Class 2 (iii), Dyes &c.], is referred to.ALSO:The deterioration of aldehyde-amine condensation products is retarded by the addition of a small amount of a polyhydroxy or substituted polyhydroxy aromatic compound, such as catechol, resorcinol, pyrogallol, hydroquinone, mono- or dichlorohydroquinone or dinitrosoresorcinol.  The treatment may be applied to the condensation products alone or mixed with other substances, and is particularly useful for retarding the deterioration of the products when mixed with rubber in a master batch awaiting further treatment.  In an example, hydroquinone is added to the condensation product of heptaldehyde and aniline. Specification 181,365, [Class 70, Indiarubber &c.], is referred to.
Patent GB-253299-A (GB)
Title: Combined machine for the harvesting and shelling of maize and the like crops
IPC: A01D45/02
Filed: 1925-04-21
Abstract: 253,299. Clayton & Shuttleworth, Ltd., Woodland, P. T., and Tucker, G. A. April 21, 1925. Thrashing-machines. - The machine for picking maize or like crops described in Specification 215,212, [Class 6 (iii), Harvesting-appliances], is combined with means for husking, shelling and storing the separated clean grain. The maize stalks pass into an inclined slot f by which the cobs are directed to a longitudinal knife that severs them from the stalks, the cobs falling on conveyers g that carry them to a hopper h. From the hopper they pass into a shelling device comprising a fixed cage l within which a rotary beater m revolves. The grain, stripped from the cobs, passes between the bars of the cage on to riddles n consisting of a pair of sieves carried by a jolting shoe q. A blower t sweeps husks and other foreign matter from the grain on the riddles. A hood v is fitted as a. wind-guard at the front of the riddle. The separated grain falls into a tray w whence it passes to a 'vertical bucket conveyer x by which it is carried to a sloping sieve 12 in a receptacle z. The grain is graded by this sieve and passed into compartments 14, 15 according to size. To ensure lighter draught the picking and the thrashing mechanisms may be driven by a motor or the entire machine may be motor propelled.
Patent GB-275901-A (GB)
Title: Improvements relating to fire extinguishers
IPC: A62C13/00
Filed: 1927-04-19
Abstract: 275,901. Jones, L. M. April 19, 1927. Extincteurs.-In an extinguisher of the inversion type, the mouth 8 of the inner vessel 2 and the port 6 leading from the outer vessel 1 to the nozzle 4 are arranged in alignment, and are respectively sealed by valves 14, 13 carried by a screwed spindle 12. The valve 14 is loosely mounted on the spindle 12 by means of a flanged ring 16 and is held in sealing position by a spring 18 engaging a collar 19 which, together with the vale 13, is preferably carried by a sleeve 40 fixed to the spindle 12 and provided with guide ribs 41 slidable through the port 6. The valve 14 is formed with a perforated cup 22 which, in the open position of the valves, serves as a filter for the liquids. In a modification, the spindle 12 is not screwed, but is held in sealing position by a second spring stronger than the spring 18. Specification 264,087 is referred to.
Patent GB-600768-A (GB)
Title: Improvements relating to the storage of the printing plates of addressing machines
IPC: B41L47/18
Filed: 1945-04-26
Abstract: 600,768. Drawers. ADREMA, Ltd., and MOON, W. R. H. April 26,1945, No. 10504. [Class 52 (i)] [Also in Group XXV] A tray for storing the embossed plates of addressing-machines and sliding on runners 17 in a cabinet 8 comprises a metal sheet 3 constituting the base and part of the side walls, the side walls further including a metal sheet 4 secured to the sheet 3 and having a rolled over edge 5 engaging a bracket 7 in the cabinet to prevent the tray tipping when partly withdrawn, and also providing a shelf 6 to support the edges of the plates. A lockable compactor (see Group XXV) is provided for securing the plates in place when the tray is not full.
Patent GB-411642-A (GB)
Title: Improvements in or relating to telecommunication systems
IPC: H04B1/58
Filed: 1933-04-08
Abstract: 411,642. Phantom systems. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES, 26, Rue de la PÚpiniÞre, Paris. April 8, 1933, No. 10563. Convention date, April 28, 1932. [Class 40 (iv).] A differential transformer A, B, C, for coupling a two-way line 2 to two one-way amplifiers 3, 31, and a balancing network 4, is arranged as shown with one winding C across the line so that a phantom connection m can be made directly without employing an additional coupling transformer.
Patent GB-700736-A (GB)
Title: A hydraulic press
IPC: B30B15/04
Filed: 1952-04-28
Abstract: 700,736. Reciprocating pumps. EITEL, H. T. April 28, 1952 [April 28, 1951], No. 10579/52. Class 102 (1). [Also in Group XXIX] A hydraulic press comprising a hollow frame 1 has a tank 6 containing operating liquid for the press mounted within the hollow frame, a driving motor 10 carried on the tank, a pump 8 mounted inside the tank and connected to the motor 10, a valve casing 9 mounted inside the tank and connected to the pump and pressure and return pipes 12, 11 detachably connected to the tank and extending to the press element, the frame having an opening 3 of a size to permit the tank unit to be removed upon detachment of the pipes. The opening 3 is closed by a plate 4 having an intake opening 13 through which the electric motor draws air which is discharged through an opening 14. The tank 6 is mounted on shoes 23 sliding on rails 24. It may be provided with wheels.