baber/WOPTO huggingface dataset:
Patent GB-819813-A (GB)
Title: Improvements in or relating to electrical bridge circuit
IPC: G08C19/02
Filed: 1956-04-20
Abstract: 819,813. Indicating temperature electrically. DUNHAM-BUSH Ltd., [formerly DUNHAM CO. Ltd., C. A.]. April 20, 1956 [June 7, 1955], No. 12112/56. Class 40 (1). A Wheatstone bridge circuit cornprises two pairs of arms 5, 6, 17, 18, an A.C. source 20 connected across one diagonal of the bridge between the junctions of the arms 17 and 18 and the junctions of the arms 5 and 6 and a sensing device 11 connected across the other diagonal of the bridge; the arm 17 comprises a temperature-sensitive resistance 21 which is connected by leads 22, 23 and the arm 18 comprises a fixed resistor 24 which is connected by leads 25 and 26. The resistors 21 and 24 are located remotely from the remainder of the bridge and the pair of leads 25, 26 is arranged to be substantially parallel and co-extensive with the pair of leads 22, 23 so that they have the same resistance and the same interconductor and conductor to ground capacitance. This enables the bridge to be balanced solely by means of,a variable resistance 14 which forms part of each of the other arms of the bridge, a slider forming the junction between the arms 5 and 6 and these arms being completed by fixed resistors 7 and 8. In a modification the leads 23 and 25 are combined into a single lead.
Patent GB-183592-A (GB)
Title: Improvements in rheostats
IPC: H01C10/48
Filed: 1921-04-27
Abstract: 183,592. North, N. E., and Metropolitan-Vickers Electrical Co., Ltd. April 27,1921. Controllers.-Relates to rheostats of the kind in which two contact brushes wipe continuously over a revolving structure like a commutator, having the bars connected to different points of a resistance, the brushes being separated or moved closer together in order to increase or decrease the effective resistance of the arrangement. According to the invention the revolving structure carrying the commutator bars 1, also comprises resistance elements 4 in the form of blades disposed to act as a ventilating-fan, air being drawn in axially through an opening 6 and blow cut radially through an opening 7 of a casing 5. The brushes 2, 3 which include maximum resistance in the position shown are caused to approach each other by means of gearing 16 driven through a clutch 20 from the commutator shaft 8. The apparatus may be used as a starter and ventilating-fan for a motor.
Patent GB-167006-A (GB)
Title: Improvements relating to centrifugal and the like pumps
IPC: F04D9/04
Filed: 1920-05-03
Abstract: 167,006. Drysdale & Co., Ltd., and Drysdale, J. W. W. May 3, 1920. Starting, facilitating.-For priming purposes the suction sides of pumps on a ship are connected to an air pump, and means are provided to prevent water from flowing from the working pumps to the air-pumps. The general service pump d, sanitary pump e, ballast pump f, and bilge pump g are of the centrifugal type, and the general service pump k of the reciprocating type; the suction side of each is connected by pipes m, n - - q to the header h. The header is connected to the air pump a by a pipe c which is taken up thirty-four feet above the header to prevent the flow of water to the pump a. Where the pumps are dealing with liquids which should not enter different pumps, the header may be thirty-four feet above the pumps. In a modification, a float in the header may operate a valve to admit air to prevent the liquid from rising above a predetermined level; or, as shown in Fig. 4, a float t may close the valve j between the header and the pipe c. In another modification, a similar valve may be placed in each pipe m - - q. A cock w is placed on each of the pipes so that each pump can be connected to or disconnected from the header.
Patent GB-773712-A (GB)
Title: Improvements in or relating to pressure or temperature actuated electric switches
IPC: H01H35/26
Filed: 1955-04-28
Abstract: 773,712. Thermal switches; fluid actuation of switches. BOSCH GES., R. April 28, 1955 [May 28, 1954], No. 12242/55. Class 38(5) A temperature or pressure operated switch comprises a bellcrank lever (Fig. 4), a pressure sensitive device acting on one arm of the lever, an adjustable spring acting on the other arm, and a snap action switch member disposed between the spring and the first-mentioned lever arm. The bellcrank lever, pivoted at 12, has one of its arms forked forming two prongs the outer one of which is engaged by a stud 18 attached to a pressure operated capsule 19. Adjustable striking members 33, 34 are carried by two prongs engage the middle blade of trifurcated leaf spring 36 which carried a contact 40 so that the switch is operated on the tilting of the lever. Acting on the other arm of the lever is a restoring spring 24 whose top end is held in a member 27 which rests on a lever 25. The lever 25 is pivoted at 53 and rests on a cam 30 fixed to a shaft 31 to which is attached a knob 32. Rotation of the knob 32 causes the lever 25 to pivot varying the tension in the spring 24 and so adjusting the pressure at which the switch operates.
Patent GB-1288152-A (GB)
IPC: A61M16/00
Filed: 1970-03-13
Abstract: 1288152 Respiratory appliances DRAGERWERK AG 13 March 1970 [13 March 1969] 12284/70 Heading A5T [Also in Division G1] In a respiratory apparatus a trigger 17 is actuated on each inhalation of the patient, via a conduit 15, to control a gas flow valve 2 via an electrical control unit 19. The trigger includes a resilient box (21) in communication with the conduit 15 and which rotates a pointer relative to a contactless sensing device 18 which produces a change of inductance in the device and thus provides a signal to the control unit 19. The position of the sensing device is adjustable to vary the sensitivity. Handwheels 19a, 19b control the ratio of inhalation to exhalation and respiration frequency. The respiratory apparatus includes positive and negative pressure relief valves 7, 8 an exhalation valve 11 which closes on inhalation and is connected to the patient via a gas volume meter 13. A valve 16 prevents positive pressure being transmitted to the trigger.
Patent GB-583510-A (GB)
Title: Improvements in devices for protection against the formation of ice
IPC: B64D15/16
Filed: 1941-09-24
Abstract: Formation of ice on aircraft parts is prevented by a covering member of natural or synthetic rubber, such as neoprene, polybutadiene, or polyvinyl polymerisation products in which a mineral oil, petroleum jelly, or ozokerite has been incorporated during manufacture to saturate the rubber, so that it exudes on the surface of the covering member and forms a protective film which reappears after removal, the oil, jelly or ozokerite being fed in a continuous or periodic manner into recesses in the covering during flight.  Examples of suitable compositions are:-(1) a natural rubber-paraffin oil mixture containing 15 per cent of paraffin by weight, (2) a neoprene-light mineral oil mixture containing 30 per cent oil, and (3) a Perbuna-light mineral oil mixture containing 35 per cent oil.  The compounding and vulcanization are carried out at a low temperature, preferably not exceeding 70 DEG  C.  A non-exuding backing strip is secured to the exuding covering member for attachment to the aircraft structure.  The Specification as open to inspection under Sect. 91 refers to the alcohols as polyvinyl polymerization products suitable for the manufacture of the covering.  This subject-matter does not appear in the Specification as accepted.ALSO:Formation of ice on aircraft parts is prevented by a covering member of natural or synthetic rubber, such as neoprene, butadiene, or polyvinyl polymerization products, in which a mineral oil, petroleum jelly, or ozokerite has been incorporated during manufacture to saturate the rubber, so that it exudes on the surface of the covering member and forms a protective film which reappears after removal, the oil, jelly or ozokerite being fed in a continuous or periodic manner into recesses in the covering during flight.  Examples of suitable compositions are:-(1) a natural rubber-paraffin oil mixture containing 15 per cent. of paraffin by weight, (2) a neoprene-light mineral oil mixture containing 30 per cent. oil, and (3) a perbuna-light mineral oil mixture containing 35 per cent. oil.  The compounding and vulcanization are carried out at a low temperature, preferably not exceeding 70 DEG C.  A non-exuding backing strip is secured to the exuding covering member for attachment to the aircraft structure.  The Specification as open to inspection under Sect. 91 refers to the alcohols as regards polyvinyl polymerization products suitable for the manufacture of the covering member.  This subject-matter does not appear in the Specification as accepted.
Patent GB-742605-A (GB)
Title: Method and means for making boardlike products from an aqueous mixture of fibrous material and hydraulic binding agents
IPC: B28B1/52
Filed: 1953-05-05
Abstract: 742,605. Making asbestos-cement sheets &c. FILTROX-WERK AKT.-GES. May 5, 1953 [May 15, 1952], No. 12474/53. Class 96. A slurry 18 of asbestos-cement &c. supplied by a pipe 17 to a flow-box 15 is fed to a travelling screen 10, is agitated by a frame 19 reciprocated mechanically at 22 or electrically or pneumatically, passes over suction boxes 14 and beneath a press roll 25 and an embossing couch press roll 26 ; it then travels over guide rolls 33 and on to plates 32 placed by hand on, or mechanically fed to a conveyer band 29, a roller 34 pressing the material so that it conforms with corrugations of the plates 32, whereafter it is cut at A, A, and hardened. A trough 27 with one or more openings extending across the machine may supply dyes &c., e.g. to form ornamental longitudinal stripes. The screen 10 may be sprayed at 28.
Patent GB-560828-A (GB)
Title: Improvements to a winding crown for time piece
IPC: G04B37/10
Filed: 1942-09-05
Abstract: 560,828. Watches. BONINCHI & SES FILS, J. Sept. 5, 1942, No. 12559. Convention date, Sept. 30, 1941. [Class 139] Keyless mechanism.-A winding device for a time piece comprises a crown 3, Fig. 1, with a resilient packing 4 to form a tight joint about the pendant 2 of the casing. The packing consists of a cylindrical body portion 4a lodged in an annular recess 5 in the crown with radial play and a flange portion 4b compressed between a shoulder 6 on the crown and a clamping ring 7. In a modification, the shoulder 6 projects slightly into the recess 5. In another'form a metallic washer engages the shoulder 6 and the clamping ring presses the flange portion therebetween. In another embodiment the packing is without a flange and a metallic washer engages a peripheral groove in the body portion.
Patent GB-1466866-A (GB)
Title: Apparatus for making beverages
IPC: A47J31/057
Filed: 1974-06-06
Abstract: 1466866 Infusor RUSSELL HOBBS Ltd 6 June 1974 [15 March 1973] 12638/73 Heading A4E [Also in Division F4] An apparatus for making hot beverages comprises a container 17 divided into two compartments 31, 32 by a means whereby adequate heating in a heating zone 18 causes liquid to transfer from compartment 32 through a passage and the zone into compartment 31 with enlargement of compartment 31 and diminution of compartment 32. Plate 19 horizontally divides the quartic-bodied coffee percolator 11 into container 17 and zone 18. Container 17 is divided into the compartments 31, 32 by a plastics bag 33 whose mouth is supported by a rim 34, compartment 32 preferably being the interior of the bag 33. Zone 18 contains an aluminium heating block 20 surrounded by an electrical element 22 and insulation 23. A stainless steel tube 27 is embedded in block 20 connected to tubes 28, 29 each containing a non-return valve 30a, 30b respectively. A nozzle 35 of bag 33 is plugged into tube 28. Bag 23 is filled with cold water, the volume being about equal to that of container 17. By gravity, water passes from bag 33 through nozzle 35, through valve 30a, tubes 28, 27, 29 into tube 39. Heating causes steam-pressure to shut valve 30a and water from the passage  between valves 30a, 30b is forced through tube 39 into basket 36 and through ground coffee 37 into compartment 31. As the passage empties, the pressure diminishes and valve 30a opens to allow more water from bag 33 to enter. Non-return valve 30b prevents water entering the passage from tube 39. Repeated cycles empty bag 33 and fill compartment 31 while bag 33 collapses. Thus the percolated coffee is not reboiled or recirculated. A keep-warm element may be fitted in compartment 31.
Patent GB-1413758-A (GB)
Title: Catalytic compositions
IPC: B01J20/18
Filed: 1973-03-15
Abstract: 1413758 Catalyst precursors, cracking catalysts, adsorbents, desiccants N L INDUSTRIES INC 15 March 1973 [16 March 1972] 12646/73 Headings B1E and B1L [Also in Division C5] Catalyst precursors comprise coherent particles of an intimate mixture of (a) 15-80 wt % of a synthetic clay-like mineral of formula wherein A = NH 4 , B = F', OH' and/or ¢O", A being external to and B internal to the lattice and x is 2.0-3.5 at 50% relative humidity wherein A, B and x are as defined above, n is more than 1.8 but less than 2.4 the mineral having a d 001  spacing at said humidity of 10.4- 12.0Š, (b) 1-40 wt. % faujasite of SiO 2 :Al 2 O 3  ratio 3-6.5 and (c) 5-70 wt. % kaolinite, metakaolinite, halloysite, metahalloysite and/or montmorillonite. The faujasite may comprise H, Mg, Ca and/or R.E. cations. In the catalysts prepared by calcining the precursors A = H, x = O, the d001 spacing is 9.6-10.2Š and the silicate material (c) is metakaolinite, metahalloysite and/or montmorillonite. The catalysts prepared by mixing the components may be steamed before use. NH 4 + in the lattice of the precursor may be replaced by alkyl substituted ammonium ions. The precursors may also be used as adsorbents for the clarification of fluids and as dessicants.
Patent GB-752497-A (GB)
Title: Improvements in and relating to trays and like receptacles, such as are used for conditioning or storing commodities
Inventor: MCTEAR IAN
IPC: F26B25/18
Filed: 1954-04-30
Abstract: 752,497. Drawer fittings &c. TALLACK, H. M. April 30, 1954, No. 12658/54. Class 52(1). [Also in Group XIII] A tray 1 for tea withering is slidably supported on guides 2 and has rigidly secured, on the underside of its bottom, pins 3 with cranked portions 3a engaging beneath the guides 2 which guides terminate in hook-like members 5 into which the pins 3 engage, when the tray is pulled out to its fully withdrawn position, to prevent complete withdrawal but allow pivotal movement to discharge contents.
Patent GB-1346188-A (GB)
Title: Chassis for vehicles for handling freight containers
IPC: B62D7/14
Filed: 1971-05-03
Abstract: 1346188 Vehicles DEMAG AG 3 May 1971 [8 May 1970] 12677/71 Heading B7H A vehicle, such as a freight container straddleloader more fully described in U.K. Specification 1,345,591, has a chassis comprising two longitudinal groups of an odd number of wheels, the middle wheel 6 in each group 4, 6, 4<SP>1</SP> being the only non-steerable wheel in the group, the remaining wheels 4, 4<SP>1</SP> of the group being disposed on opposite sides of the middle wheel 6 so that their centres are equidistant from the centre of wheel 6. The middle wheels 6 may be driven by wheel hub motors 26.
Patent GB-1132552-A (GB)
Title: Improvements in or relating to rotary capacitors
IPC: H01G5/06
Filed: 1967-03-17
Abstract: 1,132,552. Variable capacitors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 17 March, 1967 [22 March, 1966], No. 12698/67. Heading H1M. In a variable capacitor comprising rotor plates 3 and stator plates 5 separated by plastics dielectric layers 7 mounted in a framework of moulded insulating material consisting of front and rear plates 9 and 11 connected by rods, each comprising portions 13, 15, the rotor shaft 1 is journalled in metal plate 17 to eliminate sticking due to expansion of the plastics material, and two of the frame rods serve as supports for the stator plates 5 (Fig. 1, not shown), these tubular rods having a central bore 19 through which passes a bolt 21 screwed into an aperture 23 of metal plate 17 to clamp it to the front frame plate 9. A projection 27 of a metal ring 29 secured to a flange 31 on the rotor shaft co-operates with a segment-shaped cavity in the front plate 9 to limit the rotation of the rotor shaft. A polythene washer 33 separates the flange 31 from metal plate 17 and a wavy metal ring 34 around the flange and between ring 29 and the flange serves as a sliding contact between the rotor and tongue 35. Portion 13 of a frame rod supporting the stator plates has a narrow part 41 passing through tongues 43 of the stator plates, these tongues being separated by metal spacer rings 45 which electrically connect the stator plates. The narrow part 41 fits into a wider portion 47 of axial bore 19 of portion 15 of the frame rod. Correct alignment of the rotor shaft with front plate 9 during assembly is achieved by fitting pins through aligned openings 37 and 39.
Patent GB-109805-A (GB)
Title: Improvements in and relating to Plumber's Fittings for Drainage Pipes.
Inventor: DOUGHERTY ROBERT
IPC: E03C1/122
Filed: 1917-09-05
Abstract: 109,805. Dougherty, R. Sept, 18, 1916, [Convention date]. Pipes, forms of.-A drainage fitting comprises a casing a, Fig. 9, having vertical partitions b which form channels c, c<1>, c<11>, c<x>, one for each connexion i, i<1>, i<11>, i<x> with a bath &c. outlet. The bottom e of the casing forms a waste-water passage, communicating with a waste-pipe g included in the fitting by an opening g<1>, and the top d forms an air-passage communicating by an opening f<1> with an air-pipe f. Fig. 1 shows a series of the fittings in situ, the top fitting being modified by being closed over the air-pipe and containing openings inside communicating with both the air-pipe and the waste-pipe, so as to allow free passage from the air-pipe to a vent-pipe g*, while the bottom fitting is modified by having the interior wall of the air-pipe therein omitted.
Patent GB-328784-A (GB)
Title: An improved gate for kinematograph apparatus
IPC: G03B1/56
Filed: 1929-04-24
Abstract: 328,784. Kodak, Ltd., and Newman, A,. S. April 24, 1929. Kinematograph apparatus.-In apparatus having a claw feed, the gate is formed by five or more pins or rollers b - - f between two of which the convex plate i enters for the purpose of bending the film and straightening it transversely, and between the succeeding two the feed claw j engages the film in its movements. In the construction described the film n is threaded round the pins as indicated and the pins b, c are fixed to the base-plate a while the other pins are carried on a plate h pivoted about the pin c to facilitate the threading of the film. A stripping-plate p or a pin may be provided on the plate h and a registering dowel-pin w on an extension x of the plate i. The feed shaft carries a cam t actuating a lever u, v for lifting the film of the pin w at the beginning of a feed movement. All the pins are reduced at the parts corresponding to the pictures and provided with parts supporting the edges of the film. Some orall of the pins may be formed with enlargements. at their outer ends and may also be formed with edge guides.
Patent GB-1393112-A (GB)
Title: Plant growth regulation
IPC: C07F7/18
Filed: 1971-05-03
Abstract: 1393112 Plant growth regulation using silicon compounds NATURAL RUBBER PRODUCERS RESEARCH ASSOCIATION 26 April 1972 [3 May 1971] 12798/71 Heading C1B A process for regulating plant growth comprises applying to the plant an effective amount of a plant growth regulator comprising a compound containing the chemical grouping in which X is a halogen atom of the group where M is a hydrogen or metal atom or an ammonium or substituted ammonium radical; R<SP>1</SP> is a substituted or unsubstituted open chain or cyclic hydrocarbon group of from 1 to 18 carbon atoms; R<SP>2</SP> is defined as (but is not necessarily identical with) R<SP>1</SP>; and A- is an anion. The silicon compound may have the formula where B, Q and Z may be the same or different, and each is selected from the following groups: (i) halogen, e.g. chlorine or bromine; (ii) alkyl having from 1 to 18 carbon atoms, e.g. methyl, ethyl, isopropyl, tert.-butyl, dodecyl; (iii) alkoxy having from 1 to 18 carbon atoms, e.g. methoxy, ethoxy, isopropoxy, tert.-butoxy, dodecanoxy; (iv) aryl, e.g. phenyl, tolyl; (v) hydroxyl; (vi) thio or alkylthio; (vii) dialkylamino; (ix) -CH 2 -CH 2 -X; (x) substituted alkyl or alkoxy, e.g. acyloxy, hydroxy-, or halogensubstituted alkyl or alkoxy. The invention also comprises compositions of the silicon compounds with solvents, dispersion media, oily or greasy media, solid carriers and optionally surface active agents. The compounds are said to decompose and provide ethylene to the plant tissues. A particular application claimed is the stimulation of rubber latex from Hevea brasiliensis. Certain of the silicon compounds are new and are claimed in Specification 1,393,113. Specification 1,281,524 is referred to and there is a disclaimer to Specification 1,371,804.
Patent GB-1504316-A (GB)
Title: Air conditioning apparatus
IPC: F25B25/00
Filed: 1975-03-27
Abstract: 1504316 Air cooling installations L J DI PERI 27 March 1975 12807/75 Heading F4S An evaporative module X for use in a dry-air evaporative cooler comprises a heat conductive wall (e.g. a plate, or the walls of tubes 10) made of a plastics material (such as PVC) presenting opposite interfaces establishing two physically separated angularly related air passages, wetting means B (see also Fig. 5) being provided for wetting one of said interfaces (e.g. the external surfaces of the tubes 10). The module X as shown in Fig. 2 has the outline of a cube enabling it to be placed and/or stacked side-by-side or end-to-end with other modules X and/or with similarly shaped blower modules Y, Fig. 3 (and see also Fig. 9). An arrangement such as shown in Fig. 4 comprises a plurality of the modules X and Y and also a plenum module Z for subdividing an air stream passing to one of the modules X. In Fig. 4, an air stream a is drawn by one of the blower modules Y through the tubes of two modules X which modules are separated by the plenum module Z. In the plenum module Z part of the air stream a is diverted to form an air stream b which flows over the wetted surfaces of the tubes 10 of the module X downstream of the plenum module Z in heat exchange with that portion of the air stream a flowing through said tubes. Flow of stream b is assisted by one of the blower modules Y. Upstream of the plenum module Z the air stream flowing through the tubes 10 of the module X is in heat exchange with an air stream c urged by another of the blower units Y over the wetted surfaces of said tubes. In a further arrangement (Fig. 10) the assembly of modules X, Y includes also a refrigeration unit (R). Where the heat conductive wall in the modules X comprises the wall of tubes 10, these may extend between tube plates of resiliently compressible plastics or elastomeric material. The tubes 10 may have a roughened outer surface (Figs. 7 and 8) or may have an external wrapping of gauze (Fig. 6).
Patent GB-114390-A (GB)
Title: Improvements in the Manufacture of Cast or Moulded Articles of Vulcanite or the like.
IPC: H01M50/103
Filed: 1917-09-07
Abstract: 114,390. St. Helens Cable & Rubber Co., and Seymour, E. S. Sept. 7, 1917. Moulded and cast boxes; partitioned boxes.- Accumulator or other boxes or articles cast or moulded from vulcanite &c. have strips or insertions of resilient rubber arranged at such places as where the area of cross-section alters in amount or disposition in order to relieve internal strains. The Figure shows an accumulator box, in which strips 3 are inserted at the ends of partitions 2 where these form the sides; or they may be inserted at the bottom of these partitions.