baber/WOPTO huggingface dataset:
Patent GB-282951-A (GB)
Title: Improved means applicable for use in the manufacture and conservation of ice, ice-cream and the like
IPC: A23G9/22
Filed: 1926-11-17
Abstract: 282,951. Watford Engineering Works, Ltd., and Paramor, J. Nov. 17, 1926. Ice-cream freezers; ice-making; refrigerating, evaporators for.-Ice or ice cream is frozen in cans c immersed in a brine tank a cooled by an evaporator coil e of a compression refrigerating machine f, and the cans containing the frozen product are stored for maturing and hardening in other brine tanks h, h<1> cooled by separate evaporator coils n connected in parallel with the coil c, the circulation of refrigerant being controlled by valves so as to secure different temperatures in the separate brine tanks. Where the tanks are placed close together as shown they may be arranged in a common insulated casing with partitions j, j<1>. The refrigerant is preferably admitted to the upper ends of the coils n so as to maintain the upper parts of the brine tanks and the more accessible frozen products at the lowest temperature, and the difference in temperature between the tanks may be in part secured by varying the extent of surface of the coils. The tank a is fitted with a conical footstep bearing b supported by rods d for centering the can c, which is provided with known stirring means. The hardening &c. chambers have separate insulated lids m in a common removable cover for the tanks h, h<1>, which are fitted with removable angle-irons l<1> bolted to framing l to support the chambers while enabling the coils to be removed for cleaning &c.
Patent GB-1511510-A (GB)
Title: Magnetic recording apparatus
IPC: H04N5/7826
Filed: 1975-07-10
Abstract: 1511510 Automatic speed control H TANIMURA 10 July 1975 [17 July 1974] 29067/75 Heading G3R [Also in Division G5] In a video magnetic tape recorder which records video signals in a longitudinal track on a tape passed in an omega-wrap around a rotary video head assembly 2 a motor 23 of that assembly can be controlled during recording by means of a comparator 41a which compares the phase of the vertical signal in the video signal to be recorded with that of a signal produced from the video signal reproduced by the head assembly 2 by replay of a previously recorded video signal on the tape. During replay the relative speed between the tape and video heads is maintained constant, even if the tape is stopped, by the video head motor 23 drive amplifier 41b being controlled by the comparator 41a which compares in phase an input derived via switch 39 and delay 37 from the output of replay vertical sync. separator 30 with an input derived via a ramp wave generator 40 from a reference oscillator 45 giving pulses at the vertical sync pulse rate. During recording the video head/tape relative speed is controlled by comparator 41a comparing a first input derived from the video input at 44 via sync separator 46 and ramp generator 40 with a second input derived from the combined outputs of stationary heads 9a, 9b, 9c via mixer 36, switch 39 and delay 37. The tape is started after the first field has been recorded and detector 38 detects (from separator 30 ) the replayed vertical sync signals causing switch 39 to switch the second input of comparator 41a from the output of mixer 36 to the output of sync separator 30.
Patent GB-756413-A (GB)
Title: Improvements in or relating to the supply and the combustion of fuel in gas turbines
IPC: F23R3/30
Filed: 1954-10-08
Abstract: 756,413. Gas turbine plant. BUDWORTH, D. D. Nov. 4, 1954 [Oct. 8, 1954], No. 29097/54. Class 110(3) [Also in - Groups XI, XII and XXIX] A gas turbine comprises a radial flow compressor disc 1 and an inward radial flow turbine disc 2 mounted back to back on a 'rotary shaft 3. A recess is formed between the outer portions of the discs and a fixed ring 5 mounted in the recess prevents leakage between the compressor output and the turbine input and also reduces the flow of heat between the discs. The air from the compressor disc passes along a channel 11 between the compressor casing 6 and the ring 5 and is given a spiral motion by vanes 13 in the channel. At the edge of the compressor casing 6 the air changes direction to flow helically into an annular combustion chamber formed by two baffles 24, 30 but a small portion of the air passes between the end of the baffle 24 and the ring 5 directly to the turbine disc 2. The combustion chamber contains three cylindrical vaporizing containers 38 discharging fuel vapour towards the periphery of the combustion chamber. Fuel is supplied to the three vaporizers 38 by a pump 53 at a pressure controlled by a pump by-pass valve 54 comprising a piston 55 urged by an adjustable spring to obturate a port 56 connected to the inlet side of the pump The fuel passes from the pump by a pipe 60 to a governor valve 59 comprising two coaxial cylinders 63, 64, Fig. 3, of different diameter containing two interconnected pistons 65, 66 urged downwardly by a spring 69. A pipe 70 supplies air from the compressor to the underside of the upper piston 65 to lift the piston assembly so that the lower piston 66 opens successively ports in the wall of the lower cylinder 64 connected to the three vaporizers by pipes 42, 61, 62 having restrictions 42a, 61a, 62a. At starting the rotary shaft 3 is driven by an electric motor and sufficient air pressure is developed to raise the piston assembly of the governor valve to open the lowermost outlet port of the valve so that one of the vaporizers is supplied with fuel. The fuel is ignited by a piece of burning waste inserted through a closable aperture 48 in the outer casing 7 of the combustion chamber. To stop the turbine the fuel supply is cut off by depressing the piston assembly of the governor valve by means of a rod 67 extending through the top of the upper cylinder 63. A quartz window 51 is provided at the top of the outer casing 7, Specification 704,678 is referred to.
Patent GB-1263376-A (GB)
Title: Improvements in or relating to a mechanical resonator
Inventor: BAKER HUGH M JR
IPC: H03H9/24
Filed: 1969-06-10
Abstract: 1,263,376. Electro-mechanical resonator. HB ENG. CORP. 10 June, 1969, No. 29238/69. Heading H3U. [Also in Division H2] A low frequency, e.g. 60 C.P.S., resonator or filter insensitive to externally applied acceleration forces, comprises, Figs. 2, 3, two similar rectangular masses 18, 20 pivotally mounted about their centres of gravity on a shaft 36. The pivots include rubber bushings 38, 40 secured to the shaft and to the masses. The masses 18, 20 are coupled for pivotal movement in the reverse directions by a flexible metal plate 24 having a pair of down-turned lugs 26, 28 respectively connected to the masses at positions near to their opposite ends. The plate 24 is driven by a piezoelectric element 46 so that it alternately assumes a concave and convex shape and thereby oscillates the masses. The drive means may alternatively be magnetostrictive, electromagnetic or pneumatic. In another embodiment, Fig. 6, disc-shaped masses 118, 120 pivoted on stub shafts 136, 137 are coupled by a flexible blade 122 having cranked ends 126, 128 connected to the discs. The blade carries a piezoelectric element 146. In a modification of Fig. 6 (Fig. 8, not shown) the discs are replaced by rectangular-shaped masses. In a further embodiment, Fig. 12, masses 318, 320 pivoted on shafts 332, 334 are coupled by a flexible member having cranked ends 326, 328, the member carrying a piezo-electric element 346.
Patent GB-858075-A (GB)
Title: Improvements in or relating to solid detergent compositions
IPC: G01G21/16
Filed: 1958-09-12
Abstract: A solid detergent composition in chip, flake, bar or cake form comprises (a) a mixture of one or more potassium alkyl sulphates derived from fatty alcohols containing at least 10 carbon atoms, suitably those obtained from hydrogenated coconut oil, and (b) as plasticizer, one or more primary fatty alcohols having more than 16 carbon atoms and a melting point above 40 DEG C., preferably those containing 16-18 carbon atoms.  In a modification, the plasticizer may be a partial fatty acid ester of a polyol, e.g. glycerol mono- and di-stearates, an ester of a hydroxylated fatty acid, e.g. hydrogenated castor oil, or a condensate of a fatty alcohol and an alkylene oxide, e.g. the condensate of 1 mole of fatty alcohol with 1 mole ethylene oxide, such a plasticizer having a molecular weight above 200 and a melting point about 40 DEG C.  In all cases, the plasticizer is generally present in amounts by weight of 10-50% of the potassium alkyl sulphate, and preferably has a melting point above 55 DEG C.  In addition, the composition may include soap, sodium or magnesium alkyl sulphate, or mixtures thereof as solubilizers in amounts of 20-30% by weight of the potassium alkyl sulphate.  The compositions are prepared by homogenizing the ingredients while warm, and then drying on heating rolls, in a drying oven, by infra-red rays, or under vacuum.  When dried, the flakes or chips obtained may be extruded to obtain bars.
Patent GB-1423460-A (GB)
Title: Self-equalising industrial photometer
IPC: G01N21/27
Filed: 1973-06-20
Abstract: 1423460 Photo-electric measuring apparatus BAYER AG 20 June 1973 [23 June 1972]  29297/73 Heading G1A An industrial photometer for the continuous automatic analysis of gaseous or liquid process streams comprises a light source 1, a measuring cell 3 through which the process stream flows, a spectral filter 4, a photo-electric receiver 5 which is connected to a working resistor 11 having a remotely controlled voltage tap, and means for producing a constant counter voltage Ug connected in series with the working resistor so that the difference between the tapped voltage and the counter voltage is formed in a differential circuit, the measuring cell being connected at pre-selected time intervals to a reference substance source so that the process stream is automatically replaced for a fixed time interval by a reference substance, the photometer further comprising a regulating device for automatically equalizing the tapped voltage and the counter voltage at the end of this fixed time interval by varying the tapped voltage. Valves 6, 7 provided in the pipes through which the reference substance and the process stream flow are actuated by control circuits 8, 9 in such a way that on completion of the adjustment the reference substance in the cell is automatically replaced by the process stream. As shown and described, the voltage supply to the light source is stabilized, the photo-electric receiver is thermostatically controlled and the regulating circuit consists of a motor M which is connected via a switch 16 to the output of a D.C. amplifier 15 responsive to the difference voltage, the switch 16 being connected to a measuring instrument when the photometer is monitoring the process stream.  In most cases, the reference substance is a zero substance, e.g. air, having no absorption at the measuring wavelength. The counter voltage is in a fixed ratio to the voltage measuring range of the instrument 17, this ratio determining the optical measuring range of the arrangement so that both the zero point and the sensitivity of the arrangement are determined solely using the zero substance. In the case where the measurements are carried out with a suppressed zero point, the reference substance is a standard substance, the concentration of the measuring component is the standard substance being equal to the initial value or end value of the required concentration range. If the required range does not include the end value 100%, the measuring cell 3 is preceded by an auxiliary cell 18 which is filled during the measuring period with a zero substance, and during the zero period with the measuring component in pure form (100%) whilst the measuring cell contains the zero substance, the layer thickness of the auxiliary cell in relation to that of the measuring cell being such that the absorption of the pure measuring component in the auxiliary cell is equal to the absorption in the measuring cell at the beginning or end point of the range. The optical measuring head may be remotely located from the electronic circuitry, Fig. 2 (not shown).
Patent GB-1402223-A (GB)
Title: Ship guiding system
IPC: B63B51/00
Filed: 1973-06-20
Abstract: 1402223 Radio navigation MITSUI SHIPBUILDING & ENG CO Ltd 20 June 1973 [26 June 1972] 29315/73 Heading H4D A ship guiding system comprises a land millimetre-wave radar system having an aerial 1, apparatus 2, and a cathode-ray tube 11. The radar may operate at 35 GHz (7À7 mm. wavelength), and the display on the screen of the CRT is of PPI type. A hydrographic chart of the area in which the ship is navigating is superimposed upon the PPI display, for example, by means a representation of said chart upon a transparent plate of glass (Fig. 2, not shown), and a video signal representing the composite picture is produced from a television camera 12 having a drive signal generator 13. A distributor 14 which is coupled to the camera 12 supplies video monitors 15, 18 and a 900 MHz television transmitter 4, with an aerial 5. The monitor 18, being at a remote location is supplied through a coaxial cable 21 and an amplifier 17. An aerial 6 and receiving apparatus 7 are provided on the ship, and the composite picture is displayed on video monitors 16, 20, the latter being supplied through a coaxial cable 22 and an amplifier 19. The system may be simplified by omitting the additional monitors at the ship and/or the land station (Figs. 1, 3, not shown).
Patent GB-592480-A (GB)
Title: Improvements in pressbutton-type electric step by step switches
IPC: H01H5/04
Filed: 1945-11-05
Abstract: 592,480. Snap action switches. CASTELCO (GREAT BRITAIN), Ltd., and SCHNEIDER, H. W. Nov. 5, 1945, Nos. 29359/45 and 1671/46. [Class 38 (v)] A helical operating member 8 rotatable by a spring-loaded, axially-guided, nut 14 and push-button 19, imparts step-by-step rotary motion to a moving-contact-member 9, by means of arms 13 co-operating with projections 12 on the member 9 to form a ratchet. The fixed contacts 4 lie in the two opposite of four saw-tooth depressions 3 in the base 1, and co-operate with spring bridging tongue 10 on the member 9, the shape of the depressions 3 producing a snap action. To maintain alignment of the parts the spring 20 is reduced in diameter at its lower end to fit the operating member 8, and is held at the upper end by tangs on the nut 14, and the cover plate 2 has a flange 23 to register in a recess 24 in the base. A cap nut 26 screws on the cylindrical part 18 of the cover for panel mounting.
Patent GB-262909-A (GB)
Title: Improvements in and relating to squeezing and guide rollers for yarn dyeing machines and like apparatus
IPC: D06B23/00
Filed: 1925-11-21
Abstract: 262,909. British Cotton & Wool Dyers Association, Ltd., Barker, E. A., and Ellison, F. Nov. 21 1925. Mangling and wringing apparatus.-In yarn dyeing and like machines, to avoid lubrication difficulties the upper of a pair of squeezing rollers R, R<1> is mounted in antifriction bearings in housings R<*> provided with small flanged rollers B running on the vertical guides A. Sliding on the guides A also is a cross-bar C by means of which pressure is applied to the roller R through a right and left hand screw D and spring S. The cross-bar C also slides on rods C<1> carried bv the housing R<*>, and the screw D is rotated by a hand-wheel H and bevel gear E. F. The pressure applied may be indicated by a scale connected to the bar C and guides A. A continued movement of the handwheel in the reverse direction lifts the upper roller R off the lower roller, by means of the heads C<2> of the rods C', preventing damage to the rollers by their being left in contact. Squeezing rollers of two or more tanks may be connected and driven together by sprockets and chains in lieu of shafts and bevel wheels; and the guide rollers in the tanks may have antifriction bearings.
Patent GB-369876-A (GB)
Title: Improvements in sparking-plugs
IPC: H01T13/04
Filed: 1931-10-23
Abstract: 369,876. Sparking plugs. BOSCH AKT.-GES. R., 4, Militõrstrasse, Stuttgart, Germany. Oct. 23, 1931, No. 29412. C o nvention date, Nov. 28, 1930. Addition to 344,332. [Class 7 (iv).] A protective metal cap 5 having a projection 6 is held by a spring 9. The ends engage in a ring 12 and the spring is tensioned by a nut 7 and bolt 8.
Patent GB-689514-A (GB)
Title: Improvements relating to horns
Inventor: HEFFORD CHARLES GEORGE
IPC: G10K9/04
Filed: 1950-12-01
Abstract: 689,514. Bulb horns. STADIUM, Ltd. Dec. 3, 1951 [Dee. 1, 1950], No. 29495/50. Class 13. In a bulb horn the reed 4 extends substantially beyond and is positioned close to the trough 2 so that the horn is sounded when the bulb 14 is pressed or released. Suitable dimensions of the reed 4 and trough 2 are specified.
Patent GB-1190745-A (GB)
Title: Improvements in or relating to Telephone Systems
Inventor: CROOKS STEPHEN JOHN
IPC: H04Q5/00
Filed: 1966-06-30
Abstract: 1,190,745. Party line intercommunication systems. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 30 June, 1967 [30 June, 1966], No. 29533/66. Heading H4K. In an intercommunication system having a common line for all parties and having access via a line circuit to an exchange line, each party is identified by means of an individual carrier frequency which is transmitted by one party when he wishes to call another party and which is modulated by both parties once the connection is established. The exchange line circuit permanently transmits its own carrier frequency over an auxiliary line and each party has an individual gate which is normally opened so that this carrier may be used for communication between the exchange line circuit and the party but which is closed whenever one of the parties is involved in such a communication. A neon lamp is illuminated to indicate that the exchange line is in use. A manual override is provided on the gate so that a call transfer can take place. Each party is provided with a modified dial which serves to alter the frequency of a local oscillator whereby the carrier appropriate to a wanted party is transmitted when his number is " dialled." The dial also operates in ordinary manner for interrupting the exchange line circuit's carrier and hence the exchange line loop during outdialling. The parties are provided with individual Go and Return speech amplifiers which are connectible via modulators and demodulators to the common (coaxial cable) line. More than one exchange line each with its own line circuit (and carrier &c.) may be provided.
Patent GB-520095-A (GB)
Title: Improvements in and relating to elastic threads and yarn and fabrics made therefrom
IPC: D03D15/567
Filed: 1938-10-12
Abstract: 520,095. Yarns. SHEPHERD, T. L. Oct. 12, 1938, No. 29590. [Class 120 (iii)] A composite yarn comprises one or more textile crape yarns of rayon, silk or the like associated or combined with one or more threads of rubber, the craping of the textile yarn being effected by any known process including sizing and setting. A bare rubber thread and one or more rayon or other textile yarns are passed together into an uptwisting machine by which the textile yarns are crape twisted and the rubber thread twisted and partly covered by the textile yarns which have been sized. The composite yarn is then steamed or otherwise treated to set the twist and is substantially inelastic and may be easily woven or knitted, the resulting fabric is subsequently wetted or desized so that the rubber regains its elasticity. The textile yarn may be given a crape twist on a doubler or twister, in which the yarn and rubber thread are independently controlled so that the stretch given to the rubber thread may be controlled, the textile yarn may be craped and sized before passing into the twisting machine. The rubber thread and craped textile yarn may be passed through a suitable sizing or bonding bath to adhere them together, the sizing or bonding agent being removed when the resultant fabric is wetted out or desized or the thread and yarn may be twisted together before passage through the sizing or bonding bath. Specification 423,997 is referred to.
Patent GB-359173-A (GB)
Title: Improvements in floor, furniture and like cleaning devices
IPC: A47L13/24
Filed: 1930-10-03
Abstract: 359,173. Mops. ULBRYCH, J., 3, Davidkova, Liben, Prague. Oct. 3, 1930, No. 29628. Convention date, May 13. [Classes 19 and 61 (i).] A dusting or cleaning device comprises sleeves fitted with rags &c. received on metal strips 8 secured to the sides 2 of the plate 1 and also on a central bar 9 retained by a hook latch in a hollow rib 3 on the plate, the stem 6 of the handle 7 being bent at about 45‹ and rotatably mounted in apertures 5 of a bridge 4 on the plate enabling the cleaning head to be turned into various positions.
Patent GB-1095606-A (GB)
Title: Fluid flow control valves
IPC: B60T8/26
Filed: 1966-07-01
Abstract: 1,095,606. Valves; fluid pressure brakes. WAGNER ELECTRIC CORPORATION. July 1, 1966 [Sept. 28, 1965], No. 29647/66. Headings F2F and F2V. A valve for providing a differential braking effect on the front and rear wheels of a road vehicle comprises, a port 25 connected to the master cylinder and the front brake cylinders, a port 26 connected to the rear brake cylinders, a differential piston 29 urged to the position shown by opposed springs 35, 36, and a differential piston 45 slidable in piston 29 and urged by springs 52 to the position shown where a valve head 48, 51 integral therewith is spaced from a seat 39 on piston 29. During initial displacement of the brake pedal fluid passes from port 25 to port 26 via ports 42, 54 and the interior of piston 29. The increasing pressure acts on areas A 3 , A 4  of piston 29 to move the latter to the left against spring 36 and out of contact with spring 35. When the fluid pressure reaches a first predetermined value, it acts on areas A 1 , A 2  of piston 45 to move the latter to the right to seat valve head 48, 51, thereby disconnecting ports 25, 26. Up to this point the front and rear braking pressures are equal but further depression of the brake pedal to increase the fluid pressure at port 25, and thus at the front brake cylinders, to a second, higher predetermined level causes both pistons 29 and 45 to move to the right to increase the pressure supplied to the rear brake cylinders. During this latter stage, the differential areas A 3 , A 4  and the spring 36 cause the rear brake pressure to increase non- linearly with respect to, and at a lower rate than the front brake pressure. The said second predetermined pressure is reached when the spring 36 is in a relaxed state and if the pressure at port 25 is raised above this level the pressure at 26 will be increased proportionally in the ratio of the areas A 3 , A 4 . In the alternative embodiment of Fig. 4 (not shown), spring 36 is replaced by two springs (102, 104) which act in opposition on a flanged sleeve (106) slidable on piston (29) and engageable with shoulder (23) of the housing.
Patent GB-1049626-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/04
Filed: 1965-07-13
Abstract: 1,049,626. Incandescent lamp filaments. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 13, 1965 [July 16, 1964], No. 29657/65. Heading H1F. A selectively radiating filament in an electric lamp consists of, or has a surface consisting of, a compound in which the concentration of free charge carriers lies between 2 x 10<SP>21</SP> and 2 x 10<SP>22</SP> atoms/cc. and the mobility of the carriers at the operating temperature is at least 2 cm<SP>2</SP>/VS. The filament may comprise a hexaboride of a rare earth or alkaline earth metal, for example lanthanum, cerium, praeseodymium, neodymium and ytterbium. Mixtures of these compounds may be used. The bulb filling may contain a volatile borohalogen compound, e.g. BF 3 , BCl 3 .
Patent GB-738593-A (GB)
Title: Power operating system for tractor hitch linkage
IPC: A01B63/111
Filed: 1949-03-25
Abstract: The subject-matter of this Specification is identical with that of Specification 738,561 but the claims differ.  Specifications 470,068, 470,069, 510,352 and 738,603 also are referred to.