baber/WOPTO huggingface dataset:
Patent GB-474826-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: F28D7/10
Filed: 1937-01-20
Abstract: 474,826. Heating and cooling liquids. HERSEY, J. C. Jan. 20, 1937, No. 4287/36. [Class 39 (iii)] [Also in Group XIII] Heat-exchange apparatus of the type having nested chambers which intercommunicate alternately at opposite ends of the chambers, with heating means along the path of flow of the fluid, has the heating means removably housed in one or more casings, each casing totally enclosing the heating means except for one end or mouth of the casing, and the said mouths being removably held between a plurality of parts, which latter are removably assembled to form a continuous end wall to the outer casing of the apparatus. The heating elements may thus be readily withdrawn individually or as a whole with the end wall of the outer casing. A lower disc 1, carrying an inlet nozzle 5, is connected to a two-part upper disc 2 by a cylinder 3 which has an outlet 28. Nested cylinders 9, 10, 11, 12 are attached to the lower disc 1 and reach nearly to the upper disc. Nested cylinders 13, 14 attached to the upper disc 2 are between the cylinders 9 and 10, and 11 and 12 respectively. The upper disc is in two parts 2A and 2B. A central sleeve 18, closed at the bottom and for housing an electrical rod type heating element, is held by its flange 19 and nut 16 in the part 2B. A cylindrical annular shell 21, between the cylinders 10 and 11, has a flange 22 which is held to the part 2B by a ring nut 25 and to the part 2A by a second ring nut 24. Into this chamber 21 are inserted two semi-cylindrical heating elements. The feed water passes from substantially tangential holes 6 in nozzle 5, with a swirling motion into the space between sleeve 18 and cylinder 9. Thereafter the water flows over and under the top and bottom free edges of cylinders 9, 13, 10, 21, 11, 14, 12, until it issues at 28 being heated as it passes sleeve 18 and shell 21. The internal and external surfaces of sleeve 18 and shell 21 are preferably mat and black-anodized if these parts are of aluminium or its alloys. The other surfaces of the partitions are preferably mat and black-anodized. If the heating elements are replaced by cooling of fluids. The device may also be used for the vaporizing or preheating of liquid fuels.
Patent GB-676324-A (GB)
Title: Improvements in automatic telephone systems
IPC: H04M1/677
Filed: 1950-02-20
Abstract: 676,324. Automatic exchange systems; impulse transmitters. GENERAL ELECTRIC CO., Ltd., DEWAR, G., and PUCKETTE C. C. Jan. 19, 1951 [Feb. 20, 1950], No. 4288/50. Class 40 (iv). In a coin-freed system, at or near the end of the forward dialling movement for a digit such as 0 or 9 which results in a free call, contacts OL are temporarily opened to allow a sluggish relay X to operate over the line loop and the cradle-switch contact S<SP>1</SP> to remove a shortcircuit from across the impulsing contacts D, the relay X remaining operated until the cradle-switch contacts are re-opened. The contacts OL are operated by a cam fixed to the shaft of the dial. Specification 518,721 is referred to.
Patent GB-327235-A (GB)
Title: Improvements in devices for closing the doors of coin-freed automatic vending machines
IPC: G07F11/62
Filed: 1929-02-08
Abstract: 327,235. Wittenborg, E. Feb. 8, 1929. Delivery of articles stored in separate compartments.- The door 1 of a compartment containing an article for sale in a coin-freed vending machine is hinged along its bottom edge and is provided with the usual notched side locking-wing 4 which, according to the invention, has a slot 10 engaged, when the door is being closed, by a spring-pressed arm 8 to cause the door to be closed completely. The arm 8 is pivoted at 7 in a casing 6 disposed inside the compartment, and is acted on by a spring 9. When the door is open, the arm lies along the surface of the wing, but, when the door is nearly closed, it jumps into the notch 10 and exerts a pressure on the edge thereof in the door closing direction.
Patent GB-179636-A (GB)
Title: Improvements in or relating to platinum anodes
IPC: C25B11/08
Filed: 1921-02-07
Abstract: 179,636. Deutsche Gold-& Silber- Scheideanstalt vorm. R÷ssler, and Liebknecht, O. Feb. 7, 1921. Electrodes; per compounds, obtaining.- An anode for use in the manufacture of substances containing active oxygen, such as alkali percarbonates and perborates, consists of platinum net or foil a clamped between zinc frames b connected to a conductor e. Welding is unnecessary. Reinforcing-- frames of aluminium are unsuitable.
Patent GB-1349209-A (GB)
Title: Electronic timepiece
IPC: G04G9/12
Filed: 1972-01-31
Abstract: 1349209 Clocks and watches SUWA SEIKOSHA KK 31 Jan 1972 [25 Feb 1971] 4428/72 Heading G3T In an electronic timepiece having digital indications 10, 11 of the time in hours and minutes only, at least one visibly flickering display member is provided whereby the user can immediately see that the timepiece is running. Fig. 3 shows two such display members 13, 14 which are arranged to flicker with a period of one second. They may, however, be arranged to flicker alternately on and off with a period of two seconds. The time indications 10, 11 are segmental arrangements using liquid crystals or luminescent diodes.
Patent GB-796814-A (GB)
Title: Control system for regulating the conductivity of liquids
Inventor: RENDEL GEORGE H
IPC: G05D21/02
Filed: 1955-02-15
Abstract: 796,814. Automatic mixture control systems. UNITED STATES STEEL CORPORATION. Feb. 15, 1955 [Nov. 12, 1954], No. 4549/55. Class 38 (4). In a system for automatically maintaining a predetermined conductivity of a mixture of water and a substance in a conductivity cell, the voltage from a potentiometer in circuit with the electric supply to the cell is applied, in opposition to a bias voltage, to an electron tube relay, contacts of which control, through a solenoid-operated valve, the supply of substance to the mixture. As shown, a steel strip S to be pickled or cleaned is passed through a mixture of acid and water in a tank 2, the voltage from a generator 12 being applied between the strip and electrodes 10. Starting, with the tank empty, is effected by closing the switch 74C, 74C1. In consequence a motor 68 runs to close camoperated contacts 64C for a period of time so that a solenoid-operated valve 46 is opened to allow a predetermined quantity of acid to flow into the tank through a conduit 22. Water flows into the tank continuously through a conduit 18 until the mixture rises to the level of probes 80 so that a solenoid-operated valve 76 is closed. Thereafter any decrease in the acid content reduces the current passing through a conductivity cell 24 so that the consequent decrease in volt-drop across a potentiometer 30 operates a thermionic valve controlled relay 42 to energize a solenoid-operated valve 46 which allows acid to enter the tank to correct the acid content. To prevent over-correction a motor 54 continuously operating contacts 52C permits only intermittent short-period opening of valve 46. The drive to strip S (not shown) is started by operation of a push-button 92 which also operates a relay 60. Unless the strip is running, relay 60 maintains motor 54 deenergized with contacts 52C open to prevent operation of the acid correcting system. The level of the mixture is maintained by automatic operation of solenoid valve 76 but if for any reason the level falls below a probe 88P a relay 90 is de-energized to stop the strip and light a warning lamp 94.
Patent GB-575367-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H29/20
Filed: 1944-03-13
Abstract: 575,367. Mercury switches ; arc rupturing in switches. LINDSTROM, A. C. March 13, 1944, No. 4676. Convention date, March 12, 1943. [Class 38 (v)] In a switch, particularly suitable for use on portable apparatus such as vacuum cleaners or on aeroplanes, operation of a knob 14 from the off " to the " on " position first brings a contact 13 into engagement with a contact 27, then causes the union of two masses of mercury 7, 8 in series with the contacts 14, 27, and finally brings a contact 22 into bridging engagement with two contacts in parallel with the mercury contacts 7, 8. Thus circuit is normally both made and broken at the mercury contacts 7, 8, but when the switch is " on," no amount of tilting or shaking can break the circuit and when the switch is " off " no amount of tilting or shaking can make the circuit. A snap action may be provided by a projection 20 engaging a blade spring 18 or alternatively a spring-pressed roller may engage a shaped path.
Patent GB-193420-A (GB)
Title: Improvements in or relating to the manufacture of condensation products from formaldehyde and urea or thic-urea and its derivatives
IPC: C08G12/12
Filed: 1923-02-17
Abstract: Before heating the soluble initial condensation compounds of formaldehyde and urea, thiourea or their derivatives to transform them into insoluble products, a substance is added which is capable of fixing or decomposing the excess of formaldehyde present.  Such substances are urea, thiourea or their derivatives. Dimethylolurea may replace the initial condensation compound. According to the examples, (1) urea is condensed with commercial formaldehyde with or without addition of a little hexamethylenetetramine to form the soluble initial condensation compound; urea is then added, with or without some sodium acetate, and after further heating, the product is poured into a mould and hardened at temperatures of 60-100 DEG C.; (2) dimethylolurea is dissolved in boiling water, urea then added and the product treated as before.  Specifications 151,016, 171,094, and 187,605 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) mentions phenols and hydrogen peroxide as suitable substances for fixing or decomposing the formaldehyde.  This subjectmatter does not appear in the Specification as accepted.
Patent GB-306695-A (GB)
Title: Improvements in or relating to the housings for containing the indicating and resistant mechanism of automatic and semi-automatic weighing apparatus
IPC: G01G21/28
Filed: 1928-02-15
Abstract: 306,695. Automatic Scale Co., Ltd., and Blick, E. L. Feb. 15,1928. Casings. - In a housing for the indicating and resistant mechanism of automatic and semi-automatic weighing apparatus the main body of the housing is formed with a separate upper and lower section, and the lower section is supported from the scale base or base housing and supports the resistant and indicating mechanism, the upper section being secured to the lower section subsequent to the assembly of the aforesaid mechanism, means preferably being provided for maintaining the glass or like panels of the housing in correct position prior to the attachment of the upper section. The lower section 6a, Figs. 1 and 2, comprises an enlarged part 6<d> containing a pendulous resistant mechanism and terminates in two upwardlyextending arms 6b connected by a stay 7. One side of the lower section is closed by a cover plate 18 which may be removed to give access to the resistant mechanism by removing a screw 21 and unhooking a pin-and-slot connection 19, 20. The indicating chart 9 is secured to lugs 6<e> extending from the arms 6<b>. Ledges 6f and clips 8<a> support the lower end of a glass panel 8 whilst bent spacing-pieces 12 are arranged at the top to hold the glass against overlapping flanges on the arms 6b. A smaller glass panel 13 is similarly secured at the other side of the dial by means of clips 14 and a spacing-piece 15. The upper end of the lower section is elosed by an upper section 16 provided with sockets 16a fitting over the arms 6b and secured to the stay 7 by means of a screw 17. In a modification, Fig. 3, the upper ends of the glass panels 8, 13 are maintained in position by means of tongues 22a 22b formed on metal plates 22. When the upper section 16 is formed with a central enlargement containing an electric lamp for illuminating, translucent advertising panels, the section is secured to the lower section by two screw bolts, one at each end of the enlargement.
Patent GB-992988-A (GB)
Title: Polymerisation process
Inventor: BARTON JOHN MICHAEL
IPC: C08G2/00
Filed: 1962-12-13
Abstract: Trioxane or formaldehyde are polymerized in the presence of a halide or carboxylate of zinc, cadmium, aluminium, tin, antimony or iron and an organic haloformate such as methyl, ethyl or benzyl chloroformate. The polymers may be stabilized with isocyanates or diisocyanates. Suitable solvents for the reaction are specified as are washing liquids for the removal of catalyst residues &c.ALSO:A catalytic composition or complex comprises zinc, cadmium, aluminium, tin, antimony or iron halides or carboxylates and an organic haloformate such as methyl, ethyl or benzyl chloroformate.
Patent GB-904508-A (GB)
Title: Improvements in or relating to the production of bicyclic hydrocarbon derivatives
IPC: C07C45/68
Filed: 1961-02-09
Abstract: 2-Hydroxymethylene-6-methoxy-tetralone is prepared by condensing 6-methoxy tetralone with a lower alkyl formate (containing 1-6 carbon atoms in the alkyl group), in the presence of a solution of an alkyl zinc halide in an N,N-dialkylamide.  In the example the condensation is carried out at 55 DEG C. using ethyl formate in the presence of a dimethylformamide solution of methyl zinc bromide.  Specification 880,945 is referred to.
Patent GB-565360-A (GB)
Title: Improvements in and relating to building construction units
IPC: E04D3/30
Filed: 1943-03-29
Abstract: 565,360. Building construction; units for roofs, walls, &c. HASLAMS (SHEET METAL WORKERS), Ltd., HASLAM, J. J., HASLAM, W., and WEBSTER, H. March 29, 1943, No. 5013. [Classes 20 (ii) and 87 (i)] A building construction unit for roofs, walls and partitions, comprises a flat-bottomed channel 5 of sheet metal, concrete, reinforced concrete or asbestos, &c., with one perpendicular edge 8 at one side and a perpendicular edge 6 turned over to form a narrow channel 7 at the opposite side, the edges 8 and channels 7 of adjacent units interengaging to form a rigid waterproof joint and strengthening rib. The units may be disposed horizontally or vertically and may have openings for glazing. Specification 3674/!5, [Class 20 (i)], is referred to.
Patent GB-918528-A (GB)
Title: Circular weaving loom
IPC: D03D37/00
Filed: 1959-02-13
Abstract: 918,528. Circular looms; shuttles. DAUTRICOURT, J. Feb. 13, 1959 [Feb. 13, 1958], No. 5062/59. Class 142 (2). A circular loom shuttle is propelled by a pinion A, gyrating round the axis of the loom, in mesh with a pinion B on the shuttle; to prevent the shuttle from overrunning when the loom is being stopped, the trailing end of the shuttle carries either a second pinion in mesh with the gear A or a brake shoe which contacts the tops of the teeth of the pinion A. The warp threads F are collected into bundles to enter the tooth spaces of the pinion A, which are deeper than usual to obviate crushing of the threads. As shown, a surface G on the shuttle guides the warp threads on to the periphery of a disc D rotating with the pinion B, and a member E travelling with the pinion A causes them to drop into notches P<SP>1</SP> in the disc. In a modification, the notches have one edge disposed radially of the disc and the surface G and member G are omitted. In another form, a surface on the shuttle deflects the warp threads into a fixed toothed ring concentric with the axis of the loom.
Patent GB-582988-A (GB)
Title: Fire extinguishing composition
IPC: A62D1/02
Filed: 1944-03-18
Abstract: A stabilizer or foam-forming solution comprises derivatives of soya bean protein mixed with glycols and/or their ethers.  Soya bean protein is added to an aqueous solution of lime at about 200 DEG  F. and maintained at that temperature for 12 hours.  Sulphuric acid is then added and, after another 4 hours, neutralizing lime. The mass is then filtered and the filtrate concentrated by evaporation; an inhibitor such as sodium pentachlorophenate is then added.  The stabilizer is formed by adding glycols and/or ethers such as mono ethyl ether of ethylene glycol or diethylene glycol, to the above solution.  The stabilizer solution may be used in the production of mechanical foam or added to the usual chemical in forming chemical foam.
Patent GB-1533021-A (GB)
Title: Goods carrying pallet
IPC: B65D19/00
Filed: 1976-02-10
Abstract: 1533021 Load handling pallet ACIERIES REUNIES DE BURBACH EICH DUDELANGE SA ARBED 10 Feb 1976 [14 Feb 1975] 05152/76 Heading B8H A metal pallet comprises a wire mesh upper deck supported by three parallel, spaced bearers each formed of spaced inverted stirrups 21 connected by bars 22, 23 and wire mesh lower deck 30. The decks are connected to the bearers at the points where the meshes intersect the bars 22, 23 and the mesh of the upper deck is staggered both longitudinally and laterally with respect to the mesh of the lower deck.
Patent GB-511523-A (GB)
Title: Improvements in or relating to compression refrigerating machines
IPC: F25B31/02
Filed: 1938-02-18
Abstract: 511,523. Refrigerating. SIEMENS-SCHUCKERTWERKE AKT.-GES. Feb. 18, 1938, No. 5199. Convention date, Feb. 26, 1937. [Class 29] Compression machines and systems.-The vaporized refrigerant, e.g., dichloromethane, is compressed in a liquid-ring pump disposed, together with its electric driving motor, in a sealed casing. The pump comprises a rotor 7 having radial compression chambers 13 which communicate intermittently through ducts 14 with vapour inlet and discharge passages 15, 16 respectively in the motor bearing, the rotor being eccentrically mounted in a housing 8 free to rotate on shaft 9. The casing -is filled with liquid, e.g., oil, up to the level h<1> and, during operation of the pump, the open outer ends of the chambers 13 are sealed by the ring of oil which forms on the inside of the housing. Vapour passing into the casing through the pipe 18 connected to the evaporator 23 is drawn into the chambers as the ducts 14 pass over the passage 15 and, after compression, is discharged past the non-return valve 17 in the passage 16 into the pipe 20 connected to the condenser 21. In a modification, the pipe 18 is connected to the passage 15 and the passage 16 discharges into the casing which communicates with the condenser.
Patent GB-388207-A (GB)
Title: Improvements in and relating to brakes for cycles or the like
IPC: B62L1/16
Filed: 1932-02-22
Abstract: 388,207. Cycle brakes. ANSTEY, F. and RUDGEWHITWORTH, Ltd., Crow Lane, Coventry. Feb. 22, 1932, No. 5210. [Class 136 (i).] A cycle brake of the type in which the brake pads move in a direction substantially normal to the side faces of the wheel rim comprises a forked or like member connected to a pair of rocking levers which are adapted to move and parallel to the plane of the forked member are provided with brake shoes adapted to be brought into contact with opposite faces of the rim by movement of the forked member in a direction towards the wheel axis. The forked member may be actuated by the outer member of a Bowden-wire transmission. Brake pads 3 are supported in shoes 4 each connected to a bracket 5 by a rivet 6 and a bolt 7, the latter passing through a vertical slot to permit of slight angular adjustment. Each bracket 5 is adjustably connected by means of a screw 12 and slot 13 to a bell-crank lever formed of two plates 10, 11, or of a single piece of folded metal, these bell-crank levers being pivoted at 16 to lugs 14, 15 on the cycle fork. The pivotal movement is effected by downward movement of a forked member 19, preferably flexible, which is connected to bolts 22 and is actuated by a Bowden &c. transmission. The inner Bowden cable is connected at 29 to a fixed yoke 24 secured to the pivot pins 16, and the outer sleeve of the Bowden wire rests within the upper end of a cable adjuster 30, which extends into telescopic members 26, 27 containing a spring 28, the forked member 19 being mounted between the member 27 and an adjusting-nut 31. The return spring 28 may be replaced by springs at the pivots, or the member 19 may be made resilient. The yoke 24 may be replaced by a stop fixed to the cycle fork &c. According to a further modification, the bell-crank levers are operated by a rod transmission.
Patent GB-546516-A (GB)
Title: Improvements in or relating to the manufacture of chessmen
IPC: A63F3/02
Filed: 1941-04-24
Abstract: 546,516. Chess-men. ROSE, M. April 24, 1941, Nos. 5280 and 12606. [Class 132 (ii)] Chess-men are made by moulding, in silhouette form from metal or plastic material, the portion a extending perpendicularly from a base provided with projecting elements d to enable the piece to stand on a chess board or to be engaged therewith. The pieces may consist only of the heads of ordinary chess-men set directly on base flanges.
Patent GB-363894-A (GB)
Title: An improved portable electrical massage appliance
IPC: A61H23/02
Filed: 1931-02-20
Abstract: 363,894. Electric massage appliances. TYLER, W. C., 135, Sandringham Road, Willesden, London. Feb. 20, 1931, No. 5378. [Class 81 (ii).] Relates to portable electric massage apparatus of the type having an enclosed battery and induction coil S<1> and two external electrodes A, A<1>. According to the invention, when the electrodes are pressed against the body, springs B yield and the pin C presses a blade H into contact with a battery terminal J, thus completing the low-tension circuit and energizing the coil S<1>. The pin C<1> rests against a blade D<1> connected with the high-tension circuit. Current thus passes through the body of the patient from the electrode A to the other A<1>. A separate electrode on a flexible wire may be attached to a socket D2, connected with the high-tension circuit, and used to apply electricity to otherwise inaccessible parts of the body. A safety catch G<1> is provided which engages under the electrode A and prevents accidental depression of the electrode and waste of current.
Patent GB-921817-A (GB)
Title: Industrial lift trucks
Inventor: LANGFORD ALBERT
IPC: B66F9/18
Filed: 1960-02-16
Abstract: 921,817. Masted lift trucks; pallets and lifting cradles. YALE & TOWNE MANUFACTURING CO. Feb. 9, 1961 [Feb. 16, 1960], No. 5415/60. Classes 78 (3) and 78 (4). Arms 12, 13 for holding a load on the forks 4 of a lift truck are secured together and pivotally mounted on a pin 10 supported on an arm 7 secured to a slide 5 which is movable vertically, relative to the lifting carriage 3 under the action of an hydraulic ram 1. If a load of circular cross-section is subsequently to be unloaded to the right, Fig. 1, the arms 12, 13 are locked in the position shown by a pin 14 before being lowered to engage the load. When the load is to be unloaded, the slide 5 is raised so that arm 13 is just clear of the load while arm 12 still prevents the load from rolling to the left. A fixed stop 15 on the lifting carriage 3 and an adjustable stop 16 on the slide 5 may be provided. Pallets.-For handling barrels, a pallet having a wedge-shaped front face and a pair of flaps which are angularly movable between a position in which they are upstanding from the pallet and a position in which they lie in the same plane as the pallet may be employed.
Patent GB-402386-A (GB)
Title: Improvements in or relating to the cylinders of internal combustion engines
IPC: F02B75/02
Filed: 1932-02-25
Abstract: 402,386. Cylinders ; valves. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Feb. 25, 1932. No. 5598. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 1, 1932]. [Classes 7 (ii) and 7 (vi).] In a double-acting two-stroke engine, ports 12, 13 for opposite ends of the cylinder, are connected by passages 11 to a common chamber having engine-operated valves 9 ; the ports may be admission ports, as shown, or exhaust ports and an intermediate uncontrolled set 6 may also be provided. In Fig. 4 a passage 22 connected to ports 23, 24 has inlet and exhaust valves 9, 16.