baber/WOPTO huggingface dataset:
Patent GB-279960-A (GB)
Title: Improvements relating to electric switches or circuit interrupters
IPC: H01H1/10
Filed: 1926-08-13
Abstract: 279,960. Juhlin, G. A., and Metropolitan-Vickers Electrical Co., Ltd. Aug. 13,1926. Contacts.-To avoid the use of a special flexible lead and to avoid conducting current through a movable joint, the movable contact of a. switch is formed of the end of a laminated conductor which is sufficiently flexible for its other end to be fixed to a stationary part of the switch or to be connected direct to the circuit. The laminated conductor 38 may be of copper or bronze and the laminae may also be of braided material. The conductor is held in a clamp 37 and one or more of the laminae may be turned up as at 40 and connected to an auxiliary contact 35 pivoted to the clamp. The invention is shown applied to a switch of the kind described in Specification 287,283.
Patent GB-944819-A (GB)
Title: Improvements in or relating to means for spreading particulate solids
IPC: A01C17/00
Filed: 1961-06-05
Abstract: 944,819. Fertiliser distributers. W. H. JOHNSTON. June 5, 1962 [June 5, 1961; July 26, 1961], Nos. 20156/61 and 27004/61.Heading A1D. A fertiliser distributer comprises a spinner 6 driven by a hydraulic motor 16. A hopper 1 is mounted on a framework 2 attached by pins 4 to a trailer 5. A movable flap 18 controls the amount of material fed to the spinner which comprises two plates 7, 8 separated by radial vanes 10. The upper plate 8 is provided with an opening through which protrudes a deflecter. The spinner is mounted on a shaft 13 which extends into the hopper and is provided with agitators. The motor 16 is fed with hydraulic fluid from the trailer hydraulic system through flexible hoses 17.
Patent GB-1087658-A (GB)
Title: Improvements relating to livestock feeding appliances
Inventor: WALTERS ANTHONY GEORGE
IPC: A01K39/01
Filed: 1965-05-13
Abstract: 1,087,658. Livestock feeding appliances. SALOPIAN INDUSTRIES (METALS) Ltd. Aug. 15, 1966 [May 13, 1965], No. 20156/65. Heading A1M. A livestock feeding appliance comprises a travelling hopper 13 and a trough 11 within which is located an open work member 12 anchored at its ends in fixed relation to the trough and extending through the lower end of the hopper, the arrangement being such that as the hopper travels along the trough the spaces in member 12 are filled with food which is subsequently deposited in the trough behind the hopper. The opening 17 in the end walls of the hopper through which the member 12 passes, is adjustable by means of a movable plate 19. The base of the hopper may be closed by a panel 16 of complementary shape to the bottom of the trough or the front and back walls 15 of the hopper may be extended downwards to the base of the trough. Ties may be provided at spaced intervals across the hopper to ensure that the chain is held down. The member 12 may be a chain, a helically wound wire or a rod or rods wound helically with wire. The appliance may be used in a poultry batterey 10.
Patent GB-921598-A (GB)
Title: Improvements in or relating to fuel control valves for pressurised combustion chambers
Inventor: LAYTON DENNIS JOHN
IPC: F02C9/26
Filed: 1958-06-24
Abstract: 921,598. Gas turbine plant. PLESSEY CO. Ltd. Aug. 25, 1959 [June 24, 1958], No. 20171/58. Class 110 (3). [Also in Group XXIX] A combustion-gas power system comprises a fuel supply device so constructed as normally to supply fuel at a substantially constant pressure, a burner feeding a combustion chamber, the fuel supply device being connected to the burner through a control valve device having a surface on which the pressure in the combustion chamber acts to urge the valve to the closed position, a spring that urges the valve to the open position, and a surface which is acted upon by the pressure of the fuel supply device to also urge the valve to the open position. Fuel to the combustion chamber 2, Fig. 1, of a gas turbine 1 driving a fuel pump 4, is delivered to line 6 and past a control valve 10 into the injection line 9. The pressure in delivery line 6 is kept constant by a spill valve 7 which returns excess fuel to a tank 5. Control valve 10 is closed against a loading spring by combustion chamber pressure communicated through connection 11, and to reduce the size of spring required, the fuel delivery pressure is arranged, as indicated diagrammatically by connection 12, to act effectively on the valve so as to assist the spring. The control valve, Fig. 2, comprises a housing 13 having an inlet 19 for connection to line 6 and outlet 9 for connection of the injection line. A spool valve member 15 controlling a flow port between the inlet and outlet is urged by spring 20 and by the delivery pressure against the nose of an actuating piston 23 which is subject on its opposite side to the combustion chamber pressure. Leakage of fuel past the land 17 of the valve member and of actuating fluid past the piston 23 is vented through respective vent ports 24, 22. In a modification the fuel is delivered to the valve through a side inlet which communicates with an annular chamber between two lands of different diameter on the spool valve member so that the inlet pressure acts differentially in two areas to assist the spring.
Patent GB-928668-A (GB)
Title: Liquid fuel fired stoves
IPC: F24C15/08
Filed: 1961-06-06
Abstract: 928,668. Stove casings. SCHWABISCHE HUTTENWERKE G.m.b.H. June 6, 1961 [May 12, 1961], No. 20314/61 Class 126. The casing of a liquid fuel stove is of substantially rectangular horizontal cross-section and comprises two identical half-shells having all their edges bent inwards through at least 90 degrees and meeting at each narrow side of the stove in a flush joint. The casing surrounds a fuel container 3, fuel regulator 5, burner chamber 2 and baffles 6 which thermally separate the fuel container and burner chamber, all these components being mounted on a base 1 to which is also fixed one half-shell 8 by means of a bracket 13. The other half-shell is detachable, being fitted with two pins which engage in recesses 11 in the vertical edges 9, 9<SP>1</SP> of shell 8. The upper edges of the shells carry flanges 16 which support a grid 17 through which heated air leaves the stove, and both the broad and narrow sides of the casing converge towards the top and bottom of the stove to approximately the same extent.
Patent GB-189488-A (GB)
Title: Improvements in apparatus for measuring the flow of liquids and for automatically controlling the proportionate admixture of two or more liquids
IPC: G01F5/00
Filed: 1921-07-28
Abstract: 189,488. Bramwell, B., and Sang, J. A. July 28,1921. Venturi-tube apparatus.-Relates to apparatus fur measuring the rate of flow of liquids through a conduit or for controlling the proportionate admixture of two or more liquids and comprises in combination, a Venturi-tube a and a pressure actuated device consisting of a rotatable spiral or helical tube d having one or more turns containing one or more liquid pistons, and connections e, f between the ends of the Venturitube and the divided hollow axle g of the tube d. To reduce friction in the connections to the tube d easy fitting cylindrical surfaces provided with pressure grooves are used, and on these the axle g rotates. A pulley h and spiral cam i is provided on the axle g and weights h<1>, i<1> are attached to cords depending therefrom so as to give a definite zero position to the rotating system. By grading the cam i the movement of the system may be directly proportional to the rate of flow and can be indicated by a pointer j<1> on a scale j. The variable turning moment may be applied by means of one or more displacers k, k<1>, Fig. 4, suspended from cords passing round a drum or drum m, m<1> and immersed in a vessel containing mercury or other liquid. The displacer may he cylindrical, conical, or other form so as to modify the angular movement. Fig. 5 shows the application of the apparatus to the apparatus described in Specification 7324/14, [Class 86, Mixing &c.], for controlling the delivery, to a water main, of liquid proportional to the rate of flow of water in the main.
Patent GB-358491-A (GB)
Title: Improvements in or relating to the manufacture of condensation products from polybasic acids and polyvalent alcohols
IPC: C08G63/698
Filed: 1930-07-07
Abstract: Ester condensation products.-Polybasic acids, polyvalent alcohols and, if desired, monobasic acids are condensed together in the presence of about 1 to 10 per cent of boric acid, borax, boric anhydride or an ester of boric acid.  In examples (1) glycerol, phthalic anhydride and boric acid are condensed together; (2) monolinoleic acid glycerol ester (mixture of the dihydroxypropylesters of the acids contained in linseed oil), glycerol, phthalic acid and boric acid are condensed together; instead of or in addition to glycerol there can be used glycol, polyglycols and other polyvalent alcohols; instead of phthalic acid other polybasic carboxylic acids such as succinic acid, maleic acid, etherdicarboxylic acid or trimellitic acid and instead of linoleic acids, eleomargaric acid, ricinoleic acid or the acids originating therefrom by splitting of water, or resin acids; borax may also replace boric acid.  In further examples (3) monolinoleic acid glycerol ester, glycerol, adipic acid and boric anhydride, (4) linoleic acid, glycerol, phthalic anhydride and boric acid butylester, (5) ricinoleic acid, glycerol, phthalic anhydride and boric acid methyl ester are condensed together. Specification 328,728, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-460024-A (GB)
Title: Improvements in slug ejecting mechanism of typographical slug casting machines
IPC: B41B11/72
Filed: 1935-07-19
Abstract: 460,024. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd. July 19, 1935, No. 20564. Convention date, Aug. 16, 1934. [Class 100 (iii)] In slug-ejecting mechanism for typographical slug-casting machines, there are provided a main ejector blade rigidly' secured to the ejector slide, and an auxiliary ejector blade which is operable conjointly with the main blade for the ejection of a thick slug, but is mounted on the slide with a capacity for yielding longitudinally relatively thereto when, during the actuation of the slide for the ejection of a thin slug, the auxiliary blade contacts.with the mould. The ejector slide a carries a fixed main ejector blade c and is formed with one or more slots k within which are movably mounted slides i carrying narrow auxiliary ejector blades g. The slides i are pressed forward by springs m mounted on pins o, p carried by the slides i and the ejector slide a, respectively, so that, when ejecting a thin slug, the blades g engage the mould wall e and yield while the main blade c ejects the slug s. When ejecting thick slugs, both blades c and g operate to eject the slug. The blades g may be replaced by others to increase the distance between the main and auxiliary ejectors. A single wide auxiliary blade may be used and for the ejection of ribbed slugs, auxiliary blades of the width of the ribs may be used mounted edgewise in relation to the main,blade.
Patent GB-148576-A (GB)
Title: Improvements in and relating to driving systems for alternating current meters according to the ferraris principle
IPC: G01R11/36
Filed: 1920-07-10
Abstract: 148,576. Meyer Akt.-Ges., Dr. P. June 12, 1919, [Convention date]. Induction motor meters. -The effective lines of force of the pressure magnet are separated throughout their whole length from the ineffective lines of force. The paths of the effective lines of force is closed through separate C-shaped laminations E, attached at their lower ends to the U-shaped current magnet B. The upper parts of the laminations E correspond with the laminations A of the pressure magnet which, in conjunction with the connecting laminations D, carry the ineffective lines of force.
Patent GB-1203784-A (GB)
Title: Paper products and paper for use therewith
Inventor: CALVERT BERTRAM
IPC: B42C9/00
Filed: 1967-05-03
Abstract: 1,203,784. Bookbinding. B. CALVERT. 8 May, 1968 [3 May, 1967], No. 20588/67. Heading B6A. In a method of making main folding sets, each constituted by two sheets 1 covered with a non-encapsulated reproductive or receptive coating 3, 5, which faces an uncoated side 4 of an underlying sheet 1 or a plain sheet 2 completing the set, the coating 3, 5 is treated with a wetting agent such that when the sets are stacked for application of an adhesive along a longitudinal edge of the stack, the adhesive penetrates the coating to bond the sheets 1, 1, 2 together in each respective set only so that on drying of the adhesive the sets are readily separable from one another.
Patent GB-143768-A (GB)
Title: Improvements in plastic compositions
IPC: C04B14/30
Filed: 1919-08-22
Abstract: 143,768. Bas, W. J. de. June 4, 1919, [Convention date]. Concretes; compositions containing plaster. - Micaceous iron ore is added to cement, lime, or plaster in a moist condition to produce a composition of pleasing appearance. Colouring-matter may also be added. The analysis of a suitable ore is given in the Specification. The amount of ore added may vary from one part ore to 10 parts cement &c., to one part ore to one part cement &c.
Patent GB-257288-A (GB)
Title: Improvements in dry cells and method of making same
IPC: H01M6/08
Filed: 1926-08-21
Abstract: 257,288. General Dry Batteries, Inc., (Assignees of Diebel, C. P., and Waitt, W. G.). Aug. 24, 1925, [Convention date]. Addition to 244,494. Electrodes.-The process described in the parent Specification for making a dry battery in which an absorbent lining is partly inserted in a metal container which is then filled with dry depolarizer and afterwards saturated with electrolyte, is modified by inserting the absorbent lining 2 entirely within the zinc container 6, as shown in Fig. 6, before the insertion of the depolarizing mix. The latter is compressed within the lined cup and the carbon electrode is then forced in to further compress the mix. Fig. 6 shows the zinc cup placed over the lining 2 which is formed by winding a paper strip over a mandrel 1 provided with an ejector 4, the inner end of the lining being turned over to insulate the cathode from the cup 6. The lined cup is removed from the mandrel and placed over a mould containing the depolarizer which is torced into the cup and compressed by a plunger. A carbon electrode 11 is then forced into the depolarizer by a plunger 16. as shown in Fig. 10. Electrolyte is then poured in to saturate the depolarizer and lining and a washer is then forced into the cup by a plunger to turn down the projecting end of the lining as shown at 22 in Fig. 14. A second washer 19 and sealing 23 close the call.
Patent GB-1077259-A (GB)
Title: Improvements in fluid amplifiers
IPC: F15C1/14
Filed: 1966-05-11
Abstract: 1,077,259. Pure fluid amplifier. SOCIETE BERTIN & CIE. May 11, 1966 [May 12, 1965; Jan. 14, 1966], No. 20811/66. Heading G3H. A pure fluid amplifier comprises a power jet 107 and control jets 108, 109 opening into a . chamber which terminates in the downstream direction in convergent reflecting walls 117a, 125. When the jet is deflected by the pressure of control jet 109 say, the power jet is directed towards the wall 125 and is then reflected to output channel 114. The embodiment shows two forms of the chamber wall. The right hand wall is formed by two members 116, 117 each of which is formed by a single member pivot at 128. The walls may be formed completely convergent and may be adjustable or fixed. The convergent walls may also be curved or convex as well as straight. Two such amplifiers may be arranged in series with the output channels of the first forming the control jets of the second.
Patent GB-682216-A (GB)
Title: Improvements in flexible rods for thrusting through conduits
IPC: F16B7/04
Filed: 1950-08-24
Abstract: 682,216. Fish - wire apparatus. WARD, E. A. June 8,1951 [Aug. 24, 1950], No. 20927/50. Class 36. [Also in Groups XXVIII and XXXII] A flexible rod for thrusting through conduits having bends in one plane is formed of sections connected together in line, each section comprising a number of flexible spring wires 3, 3 secured together, as by spaced-apart clips 4 or solder or both, in side-byside relationship so that the rod is more flexible in the longitudinal plane containing the wires. Each section has at its ends jointing members 1, 2. In a modification, there is a wire 8 of smaller cross-section between the wires 3, 3.
Patent GB-822666-A (GB)
Title: Method for gas analysis
Inventor: SPRACKLEN STANFORD BRUCE
IPC: G01N21/37
Filed: 1957-07-03
Abstract: 822,666. Infra-red gas analysis. UNION CARBIDE CORPORATION. July 3, 1957, No. 20949/57. Class 40 (3). The proportion of a specific infra-red absorbing gas component in a gaseous mixture is determined by passing two equal infra-red beams along separate paths, both beams first through sample cells in which the gas mixture is continuously circulated, one beam then passing through a reference cell containing a sensitizing quantity of the specific gas and the other through a compensating cell containing a filtering quantity of the contaminant gas, both beams then passing through interconnected measuring cells containing the specific gas and giving differential pressure and a differential electrical response corresponding to the different absoprtions in the two paths, the infra-red beams being asynchronously interrupted, and their phase relation adjusted in accordance with the absorption times of the separate paths. The electrical response is utilized to feed-back supplemental infra-red radiation in the path of the reference cell to give a null balance in the electrical response, the extent of which gives a measure of the amount of the specific gas in the sample. In the example, the sample gas contained methane, ethane, propane and other gases, the reference cell contained 60% CH4 and 40% nitrogen, the compensating cell 30% propane and 70% nitrogen and the measuring cell 50% CH4 and 50% argon. Infra-red radiation from conical filaments 14 pass through sample cells S with constant circulation of the sample gas in each, the glass cells being lined with gold leaf or vaporized gold. Windows of CaF2 or NaCl seal the cell ends. The null-balance filament block contains a feed-back filament 30 and a dummy filament 31. Shutter block 32 has a semi-circular shutter 33 in each optical path and cam means adjusting the relative rotational positions of the shutters by lateral displacement of the shaft 35 (Fig. 6, not shown). Beyond the reference and compensating cells R, C is the measuring block M comprising two cells 51, 52 separated by the diaphragm of a condenser microphone 54 but with capillary connection. The variation of capacitance between fixed electrode 56 and movable diaphragm electrode 57 is detected in an external circuit comprising a tank circuit 61 and inductor 60. A shielded transmission line couples the tank circuit to inductor 64 of a tank circuit 65. A feed-back loop between condenser microphone 54 and feed-back filament 30 comprises the tank circuit 65, oscillator, detector, rectifier and amplifier circuits 67, 68, 69 and 70 respectively, a reversible motor 71 and variable transformer 73. The oscillator is crystal-controlled for frequency stability. The effective tank circuit is tuned to resonate at the third harmonic of the output of the oscillator, the fundamental and the other harmonic being short-circuited to ground through tank 65.
Patent GB-869579-A (GB)
Title: Improvements in or relating to electrical heating apparatus
IPC: F24H3/04
Filed: 1958-07-01
Abstract: 869,579. Electric air heaters. HOWES, K. June 30, 1959 [July 1, 1958], No. 20991/58. Class 39(3). An electric air heater has a casing which contains an impeller 10 driven by motor 8 mounted coaxially with the casing, the domed parts 1 and 2 of which are so mounted together as to have an annular air outlet 4, between which and the impeller periphery is mounted a heating element 11, 13. Incoming air enters the device at 5 through grille 6 and is expelled from the impeller chamber in a coplanar radial direction over the heating elements through gap 4. In one form the heater comprises a number of coils of wire supported on eight insulating pedestal disposed coaxial with and internally of the annular gap. In another form the element comprises a length of wire wound round an annular insulating core. A device utilizing such an element comprises in addition to the features of the embodiment described above, an air outlet shaft which extends coaxially beneath the impeller and has fluted outlets disposed around its periphery at the end remote from the impeller: According to the Provisional Specification the casing may be corrugated and the incoming air 'may enter the device in such a manner as to pass over the motor to cool it. The vanes of the impeller may have deflectors secured thereto to speed the radial outflow of air over the heating elements.
Patent GB-759607-A (GB)
Title: Improvements in or relating to party line telephone systems
Inventor: SCOWCROFT JOHN
IPC: H04Q5/00
Filed: 1953-07-29
Abstract: 759,607. Party-line systems. GENERAL ELECTRIC CO., Ltd. Oct. 4, 1954 [July 29, 1953], No. 20993/53. Class 40 (4). A party-line substation has a first relay operable to connect the speech circuit to the line, this relay being inoperable when a particular potential condition is applied between the two line terminals, and a second relay which responds to a particular potential condition applied between one line terminal and earth to enable the speech circuit to be connected to the line. The operation of the second relay at a called substation enables the lifting of the handset to complete a line loop and trip the ringing despite the initially inoperative condition of the first relay. As shown, on a four-party line (only two substations being shown) each substation has a polarized relay DA which responds to the normal line current when the handset is lifted, connects the subscriber's set to the line, and locks mechanically under control of the switchhook. The polarity of the line wires 1 and 2 is then reversed at the exchange so that the polarized relays DA at the other three sub stations on the line cannot operate. The sub stations are selectively called by the application of a relatively high positive or negative potential to one line wire and alternating ringing current to the other, as described in Specification 749,998. A polarized relay AA in series with a gas tube 11 responds to the appropriate calling potential and connects up the bell 40. Any calling potentials not appropriate to the substation bring up a relay CA which disconnects DA to prevent intrusion. When the called subscriber replies, the ringing is tripped and the relays fall back, DA at the called substation then pulling up in the line loop to complete the connection and reverse the line current. In the case of a revertive call, the circuit of CA at the calling substation is opened by the operation of DA which also completes circuits for a relay BA. Therefore the calling potentials operate BA instead of CA at the calling substation, inserting a condenser 45 into the line loop. When the ringing is tripped on the reply of the called subscriber, BA falls back and normal polarity is restored to the line wires at the exchange in order to operate the called party's relay DA and complete the connection. The polarity is immediately reversed again to maintain the lock-out condition. If the calling subscriber hangs up before the called subscriber replies, DA is unlocked and restores, disconnecting BA. The line is momentarily shortcircuited to operate a relay at the exchange which releases the exchange equipment.