baber/WOPTO huggingface dataset:
Patent GB-239026-A (GB)
Title: An improved boiler feed-water heater
IPC: F22D1/16
Filed: 1925-05-01
Abstract: 239,026. Hardy, J. A. May 1, 1925. Feed-water, heating.-A heater of the type arranged in the steam or water space of a boiler at or about the water level comprises a number of spaced. parallel tubes in closed at their ends by a pair of headers n, one header having an inlet g and the other an outlet h, passages p being provided in the headers to connect alternate pairs of tubes together to form a continuous conduit or conduits running alternately backward and forward through the heater. The outlet is connected to a tube leading to the lowest part of the boiler water space. A short depending pipe w may be provided from the outlet port to allow of a circulation when feed is not entering the boiler.
Patent GB-184962-A (GB)
Title: Improvements in filler caps for use on tanks and the like
IPC: F01P11/02
Filed: 1921-07-09
Abstract: 184,962. Bolton, E., and Coventry Movement Co., Ltd. July 9, 1921. Retaining-devices below closure.-A hinged cap for radiators, fuel tanks, &c., is secured by the ends of spring arms J carried by a stem with an operating-' handle engaging under projections B in the neck, the ends of the arms being preferably inclined and recessed.
Patent GB-1091646-A (GB)
Title: Thermocouple assembly and unit
IPC: G01K7/02
Filed: 1966-04-28
Abstract: 1,091,646. Thermocouples. ELECTRONITE ENGINEERING CO. April 28, 1966 [July 26, 1965], No. 18698/66. Heading H1K. [Also in Division H2] A vitreous tube 46, preferably a U-tube, containing a thermocouple is embedded in a ceramic body 62 and projects from it. Also embedded in the ceramic and projecting from it alongside the tube 46 is a member 38 whose function is to locate the free end of the tube. In the preferred arrangement shown the bight of the U-tube contains the hot junction 56 of the couple and the locator member 38 terminates in resilient jaws 44 which embrace this portion of the tube. The other end of the locator is joined to a member 28 which provides a separable end wall for a housing 18 which surrounds the ceramic body. This member 28 has projections 30, 34 which provide electrical terminals from which the internal leads 58, 60 (e.g. of Cu and Cu-Ni) extend to contact the thermocouple wires 52, 54 (e.g. of Pt and Pt-Rh). Fig. 5 (not shown) depicts a pre-assembled unit consisting of the thermocouple in its tube connected to an integral member constituting the parts 28 and 38. This member is preferably made of a plastic such as polypropylene. To construct an expendable immersion thermocouple, this pre-assembled unit is fitted in the housing 18, the ceramic body 62 is formed in the housing by use of a hardening ceramic cement, and the whole is then fitted in the expendable tube 14, e.g. of cardboard. This assembly is designed to be fitted on a lance to measure the temperature of molten metals.
Patent GB-313887-A (GB)
Title: Manufacture of vat-dyestuffs
IPC: C09B57/12
Filed: 1929-06-18
Abstract: 313,887. I. G. Farbenindustrie Akt.- Ges. June 18, 1928, [Convention date]. Naphthalene derivatives.-Vat dyes similar in constitution to those described in Specifications 237,294, 265,232 and 265,964, but which may contain different arvl residues in the two imidazol rings, are made by condensing a naphthoylenearylimidazol-peri-dicarboxylic acid or its anhydride with an o-diamine or a salt thereof in the presence or absence of a solvent or suspending agent, such as glacial acetic acid or nitrobenzene. The parent materials may be made by treating the respective naphthoylene - arylimidazol - mono- or di-alkylindandiones (obtainable by oxidation of the mono- or dialkyl-peri-indandione derivatives of acenapththene and condensing the dicarboxylic acid obtained with an aromatic o-diamine) with alkali, and oxidizing the resulting naphthoylene-arylimidazol - 4 - alkylacetyl-5-carboxylic acids with potassium manganate or sodium bichromate in glacial acetic acid or sulphuric acid. In examples, naphthoylenebenzimidazol-peri-dicarboxylic acid or its anhydride is condensed with 1 : 2-dimethyl- 4 :5-diaminobenzene, 1 : 2-diaminonaphthalene, and o-phenylenediamine; the products dye cotton from the hydrosulphite vat in red or brown shades ; that from o-phenylenediamine is identical with the dyestuff obtained by condensing 1 : 4 : 5 : 8-naphthalene-tetracarboxylic acid with ophenylenediamine by the process described in the above-mentioned Specifications. The Specification as open to inspection under Sect. 91 (3) (a) contains additional examples in which (1) naphthoylenebenzimidazol-peri-dicarboxylic anhydride is condensed with 3 : 4-diaminotolnene, 3 :4-diaminophenetol, 4-chlor-1 : 2- diaminobenzene. 4-bromo-1 :2-diamino, 4-nitro-1 : 2-diaminobenzene and 3 : 4-diaminoacenaphthene and (2) naphthoylene-methylbenzimidazol-peridicarboxylic acid, obtainable from the condensation product from naphthalene-4: 5-diethyldandione-1 : 8-dicarboxylic anhydride and 3 : 4 diaminotoluene by the process described above, is condensed with o-phenylenediamine. This subject-matter does not appear in the Specification as accepted.
Patent GB-640273-A (GB)
Title: Improvements in floor scrubbing and polishing machines
IPC: A47L11/30
Filed: 1947-07-14
Abstract: 640,273. Bowden mechanism. FRASERTUSON PRODUCTS, Ltd., FRASER, R., and TUSON, V. H. July 14, 1947, No. 18736. [Class 80(iii)] [Also in Group XXIII] In a floor scrubbing or polishing machine (see Group XXIII), a lever 60 is connected by a stirrup 59 to the inner wire 57 of a Bowden cable, the other end of the wire being connected to a spring biassed lowering pin (not shown). The outer sleeve 58 of the Bowden cable is fixed adjacent to the lever and at the other end abuts a plunger 63 retained by a compression spring 65 at one end of a hollow adjusting screw 64. When the lever is moved to the raised position the operative movement of the lowering pin is determined by the relative reactions of the biassing spring and the compression spring, this movement being adjustable by the position of the threaded adjusting screw on a fixed support 47.
Patent GB-1146963-A (GB)
Title: Method for producing glutamic acid
Inventor: MEGNA JOHN COSIMO
IPC: C12P13/14
Filed: 1966-04-28
Abstract: 1,146,963. Preparing glutamic acid. INTERNATIONAL MINERALS & CHEMICAL CORP. 28 April, 1966, No. 18777/66. Heading C2C. A process for producing glutamic acid by aerobic fermentation employing a biotinsensitive glutamic acid - producing microorganism in an aqueous carbohydrate medium containing a nitrogen source comprises establishing an initial fermentation medium containing a carbohydrate in an amount less than 3 weight per cent and containing biotin in an amount less than 10 -gamma per litre and after an initial growth period of from 1 to 8 hours incrementally adding a carbohydrate containing from 0À02 to 0À3 gamma per gram of biotin to maintain the carbohydrate level in the medium at not more than 1 weight per cent. Specified micro-organisms are strains of the genera Corynebacterium, Micrococcus, Brevibacterium, Micro-bacterium and Bacillus and the nutrient medium may contain conventional secondary nutrients and growth factors. The fermentation is preferably carried out at a pH between 5 and 9 and a temperature between 20‹ and 40‹ C. Reference has been directed by the Comptroller to Specifications 907,091, 940,058 and 962,684.
Patent GB-237903-A (GB)
Title: Improvements in or relating to apparatus for making a durable packing for use in electrolytic apparatus for the decomposition of water and a lining or coating for the said purpose
IPC: F16J15/14
Filed: 1925-07-23
Abstract: 237,903. Pechkranz, R. Aug. 2, 1924, [Convention date]. Joint-making packing.-In apparatus for the electrolytic decomposition of water, e.g. apparatus of the filter-press type, the joints are packed with insulating material which is impregnated or covered with a pasty semi-liquid or liquid hydrocarbon, or mixture of hydrocarbons. The packing material should be such that it does not undergo progressive deformation when subjected to pressure. The hydrocarbons are preferably of considerable consistency and may be of complex structure having cyclic and bridge formulµ. Bitumens obtained by the refining of petroleum may be used. Relatively solid hydrocarbons may be treated with a volatile solvent such as benzol. The hydrocarbon may be physically or chemically combined with other materials such as "emarex." In an example asbestos cord is impregnated with warm tar, and before it has become solid is introduced, if necessary in grooves, between the surfaces to be packed. The surfaces themselves may be coated with the hydrocarbon or special grooves may be filled therewith. The edge portions of the joint members may be specially warmed before final tightening of the assembly. Cotton, hemp, or non-fibrous material may be used instead of asbestos. The material may be loosened before impregnation. Instead of being inserted between the jointing surfaces, the packing may constitute a continuous band or strip around the joints.
Patent GB-242355-A (GB)
Title: Improvements in or relating to electric protective systems
IPC: H02H3/30
Filed: 1924-08-07
Abstract: 242,355. Reyrolle & Co., Ltd., A., and Biles, R. W. Aug. 7, 1924. Cut-out arrangements.-Protection for a threephase feeder against earth faults and faults between phases is obtained by means of transformers at each end of the feeder with secondaries connected into a two-core pilot wire so as normally to produce a balance of E.M.F.'s between ends, the transformers being of the ironcore ring type embracing all the phases, two of the phases passing in one direction and the third in the reverse direction, and one phase being arranged to have a greater or less effect than either of the other two. Instead of a single core ring-type transformer at each end embracing all the phases a number of current transformers, variably arranged in the phases, may be employed to produce the equivalent thereof. In the arrangement shown in Fig. 1, the ring type transformers B are threaded by all three phases, by phases A, A<1> in one direction, and by phase A<2> in the other. The number of turns of phase A<1> on the transformers is greater than that of the other phases. The secondaries B' are connected through the actuating coils of the tripping relays C<1> so as to produce a balanced system, and, in order to reduce the fault setting of the relays, a stabilizing device such as a diverter relay D may be employed, connected as shown, to insert resistance D' into the relay circuit on the occurrence of heavy straight-through currents, as described in Specification 200,876. A fault to earth on any phase disturbs the balance; a fault between phases A and A<2> disturbs the balance also owing to the fact that these phases pass through the transformer in opposite directions. In the case of a fault between the phase A<1> and one of the other phases, the great inductive effect of the phase A<1> on the secondary winding B<1>, due to its greater winding, causes the balance to be disturbed. The greater inductive effect referred to may be produced in various ways. In Fig. 2 it is produced by a special current transformer which has a main ring core E threaded by all the phases A, A<1>, A<2> (A<2> being reversed in relation to the others), and an auxiliary small ring core E<1> threaded by phase A<1> only. The secondary E<2> embraces both the cores and, in consequence, for equal currents the inductive effect, on the secondary, of the phase A<1> is greatest. Alternatively, a ring core of ordinary construction threaded by each of the phases may be used and the extra inductive effect obtained by a separate current transformer energized by phase A<1> and having its secondary connected in series with the main transformer. In another form, two current transformers with series-connected secondaries are threaded, the first by phases A and A<1> in the same direction and the second by phases A<1> and A<2> in the opposite direction, or a current transformer is employed for each phase and an extra transformer for the middle phase. The transformer of phase A<2> has its secondary reversed and all the secondaries are connected in series.
Patent GB-1599090-A (GB)
Title: Delta modulation system
IPC: G10L21/00
Filed: 1978-05-10
Abstract: A method of and apparatus for time compression and changing the readout speed of a delta modulation encoded audio signal. The encoded audio signal has portions selectively deleted therefrom in accordance with detected zero crossovers of the same sign which occur in a predetermined timing sequence. The encoded audio signal which has had portions selectively deleted therefrom is decoded, with the undeleted decoded portions being joined. The undeleted portions have the same gain factor where joined, thereby eliminating step transients.
Patent GB-187022-A (GB)
Title: Improvements in or relating to suction gas producer plants with special reference to vehicle driving
IPC: C10J3/00
Filed: 1921-07-12
Abstract: 187,022. Thornycroft & Co., Ltd., J. I., and Thornycroft, Sir J. E. July 12, 1921. Producer plant.-In suction gas producer plant for use on motor vehicles, to maintain a constant suction effect on the producer when the engine is not using its normal amount of gas, a fan is employed to draw gas from the producer and discharge it into the atmosphere. A jacketted gas producer a is provided with an air inlet c for normal working and an air inlet pipe and fan i for starting purposes, steam being supplied to the ash pit b by a pipe b<1> from a boiler e on the exhaust pipe f. The producer gas is drawn through a scrubber m and filter n pipe k and throttle valve p to the engine. The valve p is connected to a valve x in a pipe s' leading to a fan casing w. When the valve p closes the valve x opens and the fan draws gas through a pipe y from the pipe k and discharges it into the atmosphere through a non-return valve t on a pipe s. A valve z controlling the steam supply may be interconnected with the valves p and x. By opening a valve u and closing a valve v in the pipe d air from the starting fan is discharged through the valve t.
Patent GB-146982-A (GB)
Title: Improvements in devices for copying the surface, to be obtained from a stereo photogram of a spatial form
IPC: G03F7/00
Filed: 1920-07-06
Abstract: 146,982. Zeiss, C., [Firm of]. July 6, 1914, [Convention date]. Stereoscopic apparatus.-In stereogrammetric apparatus of the kind claimed in Specification 28229/11, the photograms e are mounted on two slides A and AD which are independently displaceable in the depth direction, and are both connected to the copying-slide A<1>. The general arrangement resembles that shown in Fig. 5 of the above-mentioned Specification, the slides A<1>, B<1> being mounted side by side on the slide C<1>, the slide A being connected to the slide A<1> by the linkage q, q<3>, q<0>, and the slide B to the slide B<1> by the lever i. According to the present invention, the separate slide AD is connected to the slide A<1> by the lever system j, j<1>, j<2>, the lever j having a slot into which passes a stud r carried by a slide r<1> which is displaceable in the depth direction in a slide r<2> itself displaceable in the breadth direction over the slide A<1>. The stud r also passes through a slot s<2> on a rod s, which lies in the breadth direction and is mounted on guides s<1> on the slide c<1>. The rod s is coupled by an arm s<3> to a link u<1> mounted on the slide B<1> so as to be adjustable about the vertical axis u. Movement of the slide B<1> in the breadth direction thus produces a displacement of the stud r in the depth direction
Patent GB-1109941-A (GB)
Title: Livestock feeding apparatus
IPC: A01K5/02
Filed: 1966-04-29
Abstract: 1,109,941. Livestock feeding apparatus. BADGER NORTHLAND Inc. 29 April, 1966 [30 April, 1965], No. 18914/66. Heading A1M. [Also in Division B8]  Livestock feeding apparatus comprises a trough 12 movable on guide rails 11 extending over an animal feeding station and receiving feed from a delivery source 3, a conveyer 17 being located within the trough and moving feed to a discharge outlet as the trough moves along the rails. As shown the conveyer 17 comprises a pair of endless chains 18 between which are secured cleats 22, a link or section of each chain having secured thereto a lug 24 which is mounted on a fixed post 25 upstanding from the feed bunk. A drive is taken from motor 26 to sprockets 19 to move the chains over the base 14 of the trough 12 and advance the trough along the rails, the chains moving the feed towards one or other of the open ends of the trough. Switches 36 are provided at the limits of travel of the trough and are contacted by brackets 15 supporting the trough to reverse motor 26 and therefore the direction of travel of the trough. Feed is continuously supplied to the trough through an overhead casing 4 housing an auger 5. Adjustable shoots 37 are located at the trough ends. In a modification the conveyer located within the trough is an auger driven by a motor which also serves to drive a pulley system connected to the trough and over which a cable extending the length of movement of the trough is reared. In a further modification an auger extends along the length of the path of travel of the trough and is stationary with respect to the feed bunk 8, the trough reciprocating along the auger.
Patent GB-749359-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/34
Filed: 1954-06-29
Abstract: 749,359. Windscreen cleaners. BOSCH GES., R. June 29, 1954 [July 13, 1953], No. 18968/54. Class 138(1) A windscreen wiper of the kind having a wiper arm 3, one end of which carries the wiper blade (not shown) and the other end of which is secured in a holder formed in the manner of a housing 4 and mounted on the wiper shaft (not shown), is characterized in that the housing is of channelshaped cross-section formed from sheet metal and the arm 3 is welded or soldered thereto. In the embodiment of Fig. 2, a metal strip 6, is welded or soldered to both the arm 3 and housing 4 and has a bent end 7 to engage the spring of a catch device in the housing, which device maintains the arm in a position adjacent the windscreen or raised away therefrom. In the embodiments, of Figs. 3 and 4, the arm 3 is welded or soldered directly to the housing and bent at 7<SP>1</SP> to engage the spring. In each embodiment the end 9 of the housing is rounded and curved towards the arm 3 and in Fig. 4, the arm is provided with a step 10. The end 9 need not be rounded, but only curved towards the arm 3.
Patent GB-1223748-A (GB)
Title: Device for the emergency-stopping of vehicles
Inventor: KENT ARNOLD FREDERICK
IPC: B66D1/48
Filed: 1970-09-14
Abstract: 1,223,748. Stress limiting devices. A. F. KENT. 14 Sept., 1970, No. 19010/68. Heading B8B. [Also in Division F2] The invention provides a vehicle arrester which may be mounted on a vehicle or on the ground. It incorporates a rope, one end of which is attached to a drum; the rope is part wound around the drum and its other end has means of attachment to a device on the ground or the vehicle, as the case may be. Between the drum and the free end of the rope, the rope passes around pulleys on pneumatically loaded or spring-loaded frames, or both, there being a connection between one such frame and the operating lever of conventional disc brakes which act on the drum rims. The said connection is designed and arranged so that the rope tension, during arrest, rises to, and descends slightly from, a maximum value before the disc brakes are applied to the drum.
Patent GB-1134878-A (GB)
Title: Improvements in and relating to oryzanol solutions and compositions
IPC: A23L29/00
Filed: 1966-04-29
Abstract: 1,134,878. Raffinose-fatty acid esters. K. SUGA. 29 April, 1966, No. 19026/66. Heading C2C. [Also in Divisions A5 and C6] Raffinose-fatty acid esters are prepared by an ester-exchange reaction between a fatty acid ester, e.g. the methyl ester, and raffinose in dimethyl formamide using an alkaline catalyst, e.g. K 2 CO 3 . Specified fatty acid esters of raffinose are the laurate, myristate, palmitate, stearate and oleate esters.
Patent GB-702321-A (GB)
Title: Improvements relating to non-linear electrical control circuits
Inventor: CLAYDEN RONALD THOMAS
IPC: H04N5/202
Filed: 1949-07-21
Abstract: 702,321. Logarithmic circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 7, 1950 [July 21, 1949], No. 19195/49. Class 40 (6). [Also in Group XXXVI] In a circuit of variable non-linearity, for example, a logarithmic circuit for "gamma" control for television, signals are derived from two circuits of different non-linearity (one of which circuits may be linear) and the derived signals are combined in adjustable proportions. The positive going output signal from a television pick up head 1 is applied to the grid of a cathode follower valve 2 which feeds a logarithmic circuit of the type described in Specification 683,605 comprising a first potentiometer 3, 4 and if required a second potentiometer 5, 6, the elements 4 and 6 being diodes and constituting non-linear resistors. A non-linear output is taken from the cathode follower output valve and a linear output is taken from the cathode follower input valve and these are combined in a potentiometer 14 so that at the right hand end of the potentiometer the output has the greatest non-linearity and at the left hand end it is substantially linear. In Fig. 2 (not shown) the diodes are reversed and the input signal is negative going so that any non-linearity in the output valve serves to decrease still further the effective " gamma " valve of the circuit. An effective gamma greater than unity may be obtained in this arrangement by inverting the input signals so that white appears as zero volts and black as a negative voltage. Where remote adjustment of the " gamma " is required the two outputs may be respectively fed through two ganged bridged T attenuators at the remote point. the attenuators also controlling the polarity of the input so that the " gamma value may be varied from a positive to a negative value. This may be of use when negative and positive kinema films have to be scanned alternatively. In Fig. 4 the signal is fed to the grid of a high impedance valve 36 having an anode load comprising a valve 38 biased to operate as a non-linear resistor; and a fixed resistor 37. A non-linear output is taken from the anode-cathode junction and fed to the first grid of a pair of double triodes and a linear output is taken from resistor 37 to the second grid, a combined output appearing across the common cathode resistor 44 of the triodes. A potentiometer 53 varies the bias on the second grid and therefore varies inversely the contribution of the two triodes to the output signal. It is suggested that the linear circuit could be replaced by a circuit of opposite curvature so that a variation between a gamma of less and more than unity may be obtained. Specification 514,650 also is referred to.
Patent GB-569287-A (GB)
Title: Improvements in or relating to stays for doors
IPC: E05C17/22
Filed: 1943-11-17
Abstract: 569,287. Stays for doors. STOTT, P. W. Nov. 17, 1943, No. 19219. Convention date, Feb. 4. [Class 65 (i)] A stay 3 for a door is pivoted at one end to the door frame and slides between friction plates 6 of leather &c., clamped between outer plates 7, 8 fixed to the top of the door. The friction may be adjusted by means of screws passing through 7 and 6 and engaging tapped holes in 8. The end of 3 carries a spring stop 15.
Patent GB-140498-A (GB)
Title: Improvements in traction machines especially adapted for agricultural purposes
IPC: A01B3/58
Filed: 1918-11-22
Abstract: 140,498. White, A. E., (Beeman Garden Tractor Co.). Nov. 22, 1918. Controlling handles or levers associated with hand steering-devices.- Relates to the control of a tractor which is steered and controlled through a pair of rigidlyconnected handle-bars, by an operator walking behind. The handlebars are fitted with hand-grips 21<1>. The clutch is controlled by a lever 22 through a connexion 23. A catch 24 is provided for the lever 22 and a spring push-button 33 controls the throttle.