baber/WOPTO huggingface dataset:
Patent GB-404823-A (GB)
Title: Improvements in or relating to reciprocating steam engines
IPC: F01B17/04
Filed: 1933-03-11
Abstract: 404,823. Steam engines. AKTIEBOLAGET GOTAVERKEN, Gothenburg, and JOHANSSON, J. E., 5, Kungsgatan, Gothenburg, Sweden. March 11, 1933, No. 7425. [Class 122 (iii).] In a reciprocating steam engine wherein the initial steam supply and/or the intermediate stage steam has its pressure increased by a rotary compressor, a portion of the compressed steam is returned intermittently to the suction side of the compressor. The suction 9 and discharge 10 of a compressor connected to an intermediate stage of an engine are connected by a pipe 16, adjustable valve 17 and control valve 18 operated by the slide valve 12. Valve 18 opens the connection 16 to pass steam to the suction side of the compressor only when the steam inlet to cylinder 13 is closed. A spring loaded valve 19 opens when the suction pressure is excessive. The ends of the cylinder 13 are connected by relief valves 20 to the suction side of the pump.
Patent GB-1092554-A (GB)
Title: Polyether polyols and polyurethanes derived therefrom
Inventor: TURNER JOHN MICHAEL
IPC: C07H15/08
Filed: 1965-02-20
Abstract: Rigid polyurethane foams are prepared from a polyether polyol, derived from the condensation of sucrose with an amount of propylene oxide equivalent to from 1 to 2 molecules per sucrose OH group, in whih from 5 to 40% of the OH groups have been acetylated, by reaction with an organic polyisocyanate in the presence of a blowing agent e.g. CFCl3.  A one-shot process may be used.  Triethylamine, diazebicyclooctane and a silicone oil are present in examples.ALSO:The invention comprises polyether polyols, derived from the condensation of sucrose with an amount of propylene oxide equivalent to from 1 to 2 molecules per sucrose OH group, in which from 5 to 40% of the OH groups have been acetylated, e.g. with acetic anhydride.
Patent GB-429393-A (GB)
Title: Improvements in indicating means for electric switchgear
IPC: H02B15/00
Filed: 1934-03-08
Abstract: 429,393. Indicators. DAVIES, D. R., 14, Ruabon Road, Didsbury, near Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. March 8, 1934, No. 7457. [Class 38 (v)] An indicating lamp for metal clad switchgear comprises a casing 75 rotatably mounted by means of bayonet lugs 81 in an aperture in the metal casing 60. The upper end of the casing has a transparent window 79 held by a knurled ring 78 by which the casing may be rotated to move contacts 85, 851, connected to a neon lamp 82 into and out of contact with spring-mounted contacts 87, 871 connected respectively to the casing 60 and the outer conducting layer of a condenser bushing of an incoming cable (not shown). Specifications 395,088 and 429,392 are referred to.
Patent GB-1093969-A (GB)
Title: An article of bedding
IPC: A47C21/02
Filed: 1966-02-21
Abstract: 1,093,969. Bed-coverings; sleeping bags. SOCI•T• EDMO. Feb. 21, 1966 [March 19, 1965], No. 7467/66. Headings A4G and A4S. A bed covering comprises top and bottom sheets 2, 3 formed into a bag, the connection at the sides being by gussets 5 which are covered with a heat-insulating material. The sheet 2 has loops 4 for attachment to a mattress and is stitched at 6 to the gussets which are releasably connected to the sheet 3, e.g. by sliding clasp fasteners 7. The fasteners 7 extend partially or wholly along the sides and may extend between the bottom ends of the sheets. Bands 8 of heat-insulating material are provided and a blanket is secured to the upper surface of the top sheet by sliding clasp fasteners 9. The sliding clasp fasteners may be replaced by strips of releasable self-adhesive textile material and, in further modifications, gussets are provided on each side of each sheet, the gussets being overlapped in use and connected at intervals, the sheets are extended to protect a pillow or blanket or have corner formations for stretching over the corners of the mattress, or either sheet may consist of two layers receiving a blanket between the layers, or quilted to form pockets which receive removable fabric elements coated with down.
Patent GB-630508-A (GB)
Title: Improvements relating to epicyclic power transmission mechanisms
IPC: F16H3/66
Filed: 1947-03-20
Abstract: 630,508. Change-speed epicyclic gearing. NORMANVILLE, E. J. DE. March 20,1947, No. 7669. [Class 80 (ii)] In a change-speed epicyclic gearing for motor vehicle transmissions having interengaging planets 9, 10 engaging, the one a driving sun 2 and a driven annulus 7 and the other a reaction sun 11, brakable members 18, 19, 20 are provided for controlling the rotation of the sun 11,-one of the brakable members, 19, being connected to the sun 11 through a unidirectional clutch 21 so as to allow drive in one speed ratio under free-wheel as well as engine braking conditions. As shown, applied to a three speed and reversing gearing, the planet carrier 8 and sun 11 respectively are rigid with the annulus 13 and planet carrier 12 of a second epicyclic train the planets 14 of which mesh the annulus 13 and a second reaction sun 15 to which brake drums 19, 20 are connected through a one way roller clutch 21 and directly respectively. The member 20 may be engaged by a clutch member 22 on the input shaft 1 for a third speed direct drive. Stationing of the sun 15 through either of the brake drums 19, 20 gives second speed under one or other of the above conditions, and further brake drums 18, 17 are provided on the planet carriers 12, 8 to station these for first and reverse speeds respectively. The drum 19 is normally stationed during direct drive to facilitate changing down therefrom and to minimise brake wear. The brake drum 20 may be dispensed with, the clutch member 22 engaging the drum 19 instead. In a two speed and reverse gear, Fig. 3 (not shown), the second train is dispensed with, the dual brakable members being applied to the reaction sun of the principal train. In either of these gearings, compound planet pinions may be incorporated to give a reverse ratio differing from that of the first speed. The invention is applicable to transmissions incorporating a fluid torque converter or coupling.
Patent GB-629320-A (GB)
Title: Improvements in or relating to processes for producing resinous material and the resinous material resulting therefrom
IPC: C08F212/14
Filed: 1947-03-20
Abstract: Copolymers are made by heating 5-60 per cent p-chloro-a -methyl styrene and 15-40 per cent styrene in mass, solvent, emulsion or suspension.  Benzoyl peroxide, ammonium persulphate, di-tert.-butyl and hydrogen peroxides are specified as optional catalysts.  The copolymer may be purified by solution in benzene and precipitation by alcohol using mass polymerization with heating above 90 DEG  C. but below 110 DEG  C.  The copolymer may be heat-hardened at 110-175 DEG C.  Many articles, including threads and particular electrical apparatus, may be formed from the copolymers.
Patent GB-893297-A (GB)
Title: Temperature control apparatus
IPC: G05D23/12
Filed: 1960-03-04
Abstract: 893,297. Valves. RANCO Inc. March 4, 1960 [March 5, 1959], No. 7716/60. Class 135. A thermostatic control apparatus for an automobile cooling system comprises a sheet metal plate 10 having an outward flange 10b at one edge and an off-set flange 10c parallel to the plate at the opposite edge, a valve 12 attached at one end of flange 10b with a projecting operating member 12g, a thermal element 17 attached to flange 10b with a movable projecting part 17f, a lever 15 connected at one end to the valve operating member, pivoted intermediately on the projecting part of the thermal element and carrying a roller 15d at its other end engaging cam 16 under the action of spring 21, the cam being pivoted on flange 10c and having an arm 16b whereby the valve is positioned to close at a set temperature.
Patent GB-287140-A (GB)
Title: Improvements in and relating to dielectric material and methods of manufacturing the same
IPC: H01G4/22
Filed: 1928-03-13
Abstract: 287,140. British Thomson-Houston Co., Ltd., (Assignees of Boyer, S.). March 16, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Condensers.-Materials of high dielectric constant, specific resistance, and dielectric strength, such as nitrobenzene, are mixed with another dielectric material, such as nitrotoluene, so as to lower the freezing point of the material and so prevent any change in its dielectric character when used in low temperatures. Other materials which may be added are, for example, dinitrobenzene and monochlorbenzene, and curves are given in the Specification showing the relation between the freezing-point and percentage of added material for each of the three added compounds. The addition has the extra advantage that the boiling-point of the mixture is also raised. Impurities in nitrobenzene, such as water, acids, or salts, are removed by mixing aluminium oxide with either ingredient, heating to 100‹ C., and distilling. A condenser embodying such a dielectric has its terminals a, b connected by leads g, h with metal strips such as i connected with the condenser elements. Insulating plates j are provided, and the sections are clamped by means of plates k and put in a container c. The condenser is then vacuum treated and impregnated with nitrobenzene.
Patent GB-698316-A (GB)
Title: Energizing spring retainer for one-way clutches
IPC: F16D41/07
Filed: 1952-03-26
Abstract: 698,316. Free-wheel clutches. FORMSPRAG CO. March 26, 1952 [April 23, 1951], No. 7792/52. Class 80 (ii). In a free-wheel clutch comprising sprags C engaging between cylindrical races A, B, with energising garter springs E engaged in inclined channels D in the ends of the sprags, the springs are held in position by one or more thin plates F between adjacent sprags, the plate having apertures G through which the springs pass. The springs are inserted into the apertures through narrower entrance slots H by distorting the springs. The sprags C, plates F and springs E may be pre-assembled as a rectilinearly-extending unit which may be inserted between the races A, B by bending it into annular form and connecting the ends of the springs by means of splice springs E<SP>3</SP>, Fig. 8.
Patent GB-589715-A (GB)
Title: Improved polyvinyl chloride compositions
IPC: C08J3/18
Filed: 1945-03-28
Abstract: Dispersions of "vinyl chloride polymers" having a long storage life are obtained by heating the powdered polymer (substantially free from volatile constituents) for a time sufficient to cause partial softening, but not decomposition, reducing the product to a finely-powdered condition, if not already in that state, and uniformly distributing it below 60 DEG  C. in a practically non-volatile plasticising agent in which it has a solubility of not more than 5 per cent at 20 DEG  C.  The heating may take place in an oven on trays or the polymer, dispersed in a liquid of b.p. less than 200 DEG  C., may be heated in a spray-drying apparatus until free from volatile liquids and then continuing the heating until the partial softening occurs.  "Vinyl chloride polymers" include polyvinyl chloride, copolymers of vinyl chloride with not more than 5 per cent of other CH2 = C< compounds and heteropolymers thereof with not more than 5 per cent of compounds incapable of polymerization alone, but capable of polymerization in admixture with vinyl chloride, e.g. trichlorethylene and maleic anhydride.  Specified plasticisers are dibutyl phthalate, tricresyl phosphate and dihexyl phthalate. Heat stabilizers, e.g. lead silicate or carbonate, dyes and pigments may be added to the dispersions or to the polymer employed for their preparation.  Examples are given. Specification 500,298 is referred to.
Patent GB-1191813-A (GB)
Title: Cellular Suction Roll for Dewatering Paper
Inventor: HUEBER RUDOLF
IPC: D21F3/10
Filed: 1969-02-13
Abstract: 1,191,813. Wet-presses for paper. R. HUEBER. 13 Feb., 1969 [13 Feb., 1968], No. 7819/ 69. Heading D2A. [Also in Division F2] A suction roller for paper making machines consists of a metal core I surrounded by a layer 2 of hard rubber formed with longitudinal slots 3 for the reception of rectangular ducts 4 connected to a common vacuum source and communicating with radial passages 7 opening into short longitudinal slots 8 in the surface of a soft rubber outer sheath 6. The tubular ducts 4 are coated with unvulcanised hard rubber and after assembly of the components the complete unit is vulcanised, the passages 7 and slots 8 then being drilled and cut.
Patent GB-323968-A (GB)
Title: Improvements in pneumatic tools
IPC: B25D17/12
Filed: 1929-03-11
Abstract: 323,968. Marks, Sir G. C., (Ingersoll- Rand Co.). March 11, 1929. Percussive tools. - A sleeve S, formed with a longitudinal split, surrounds the exhaust ports E of the drill so that the exhaust air is diffused in passing into the atmosphere. It is held in position by its own spring pressure on the surfaces V, X and endwise movement is prevented by the shoulders W, Y. Specification 316,470 is referred to.
Patent GB-455194-A (GB)
Title: Improvements in or relating to the dyeing and like treatment of hose and other shaped textile articles
IPC: D06B5/00
Filed: 1936-03-16
Abstract: <PICT:0455194/IV/1> A form for supporting hose or other shaped textile article in a heated bath is provided with a shield held out of contact with the article and at least partially surrounding a part of it to prevent excessive ebullition in the immediate neighbourhood within the shield and prevent the formation of blisters and distortion, streaking or other deformation of the article.  The form 1 is composed of metal, wood or composition braced at 2 by cross-braces and is attached at 4 to a key member 3.  A lug 5 on the key is adapted to fit into the rotating form holder of a hose treating device.  The shield 7 is hinged on a pin 6 driven through the key member 3 and comprises two depending arms 8 and a curved back portion 9 integral therewith.  The shield may be pivoted to the position shown by chain lines to give access to the form.  Any desired number of hose may be placed upon the form which may be turned into a horizontal position in a heated bath or into a vertical position out of the bath.  The invention is particularly applicable to hose and like articles formed of yarns or filaments containing organic derivatives of cellulose, which are plasticized or softened by heated baths and baths containing certain chemicals.
Patent GB-121896-A (GB)
Title: Mechanically Operated and Regulated Extra Air Valve for Internal Combustion Engines.
Inventor: EDWARDS DAVEY
IPC: F02D9/00
Filed: 1918-05-11
Abstract: 121,896. Edwards, D., and Edwards, J. M. May 11, 1918. Cylinders, pipes for.-A valve K admitting extra air to the induction pipe R is controlled by an engine-driven governor A, which acts on a pivoted arm D connected to the valve K by a Bowden wire I. The extent of movement of the arm D and the valve is controlled by a spring T connected by a Bowden wire W to a control lever X for adjusting the tension of the spring. In one extreme position of the lever X, the spring T keeps the valve closed irrespective of the engine speed.
Patent GB-886535-A (GB)
Title: Improvements in and relating to the moulding of heat expandable synthetic plastic materials
Inventor: FISHER EDWIN GEORGE
IPC: B29C33/38
Filed: 1959-03-09
Abstract: 886,535. Moulding expanded synthetic plastics. FOSTER, YATES & THOM Ltd. Jan. 28, 1960 [March 9, 1959], No. 8001/59. Class 87(2). Expanded synthetic plastics, e.g. polystyrene, are moulded by feeding partially expanded beads or granules of the plastic to a mould cavity under a fluid pressure difference to assist in filling the cavity, and subsequently completely expanding the beads or granules by heat. The fluid pressure difference may be applied either by connecting the mould cavity to a source of vacuum or by applying fluid pressure to a filling hopper or equivalent arrangement. By way of example, apparatus for moulding polystyrene beakers comprises a rotatable table 1 carrying a series of moulds 2, each being formed of two horizontally separable halves 3, 4 and including a core 5 secured to the table 1 to provide a mould cavity 6. The mould cavity is filled from a hopper 7 fed from a spout 8 and having a downward extension 9, the outlet of which is controllable by a perforated plate valve 10 actuated by a pneumatic cylinder device 11. A steam chamber 13 communicates through passages 14 with the cavity 6 and can be placed in communication with either a source of vacuum or with a supply of heating steam as required, the desired control being effected by a change-over valve 16. Where fluid pressure is to be applied to the hopper 7, this is effected through a pipe 15a in the wall of the hopper which is closed by a cover 7a. The fluid pressure may be applied alone or in conjunction with vacuum. When the mould has been filled, the table 1 is rotated to bring the mould inlet beneath a closure plate 17, Fig. 2, which is spring mounted on a vertically displaceable sleeve 18 so as to seal the mould. Steam is then admitted for sufficient time to complete the expansion of the bead filling, after which the moulded article is cooled during a subsequent stage or stages of advancement of the rotary table 1.
Patent GB-452802-A (GB)
Title: Improvements in, or relating to, artificial flies and in the manufacture or production thereof
IPC: A01K85/08
Filed: 1935-03-15
Abstract: The hackle and wings of an artificial fly are maintained in a plane at right angles to that of the hook by a waterproof fixative.  The fly is placed in a press until the dressings are set by the drying of the fixative.
Patent GB-145864-A (GB)
Title: Improvements in and relating to dispensing pumps
IPC: F04B15/02
Filed: 1919-03-31
Abstract: 145,864. Petigor, M. H. March 31, 1919. Dispensing liquids.-In a pump for dispensing soda-water syrups &c., the liquid is contained in a receptacle A in which is placed the pump cylinder 2. The head 8 of the cylinder has an admission opening 12 and a tubular extension 10 to which is secured a tube 18 which is screwed into the cap 19 and communicates with a spout 20 formed integrally with the cap. The piston 13 is formed with a tubular member 15 which works in the tubular extension 10. The bottom of the cylinder is provided with apertures 4, 5, fitted with a non-return valve 6. On the upper end of the piston-rod is screwed a nut 27 having in its upper part semi-cylindrical depressions 28, Fig. 5, which co-operate with similar depressions 30, Fig. 7, in a collar 29 to form cylindrical bearings for lugs 33, Fig. 8, on the operating lever 31 the end of which is formed with a slotted member 40 which works over a pin 39 carried by an arm 38 formed on the cap 19. The piston is returned to the upper end of its stroke by a spring 24 held between a flange 23 at the bottom of a cylindrical bushing 22 in the cap 19 and a collar 25 in a sleeve 26 which works within the bushing 22. The stroke of the piston, and therefore the quantity of liquid delivered, is regulated by adjusting the position of the nut 27 on the pistonrod, the collar 29 being held against the nut 27 by a screwed head 35. On depressing the piston, the valve 6 closes, and liquid is forced from the cylinder out through the spout 20. On releasing the pressure, the piston rises, and liquid enters the cylinder through the valve apertures 4, 5, to be forced out through the spout on the next stroke of the piston.
Patent GB-1212541-A (GB)
Title: Improvements relating to indicator devices for cooking stoves
Inventor: HAWLEY ARTHUR DEREK
IPC: F24C3/12
Filed: 1967-02-21
Abstract: 1,212,541. Illuminated indicators. SIMPLEX ELECTRIC CO. Ltd. 15 May, 1968 [21 Feb., 1967], No. 8079/67. Heading G5C. [Also in Division F4] Light pipes 30 lead from a common light source 28 to some or all of the windows 33 in the control panel 10 of a worker through which indicator marks 20, rotatable with the control knobs 19 of the cooking units, are viewed. The control panel 10 is mounted on a splash-back in front of an enclosure 11 for the regulating devices 15 for an electric cooker. The panel has a glass cover 35, and a fluorescent lamp 28 in a housing 26 projecting from the top of the control panel provides the light source for a row of indicators, and illumines the cooker top through a transparent bottom panel 27 of the housing 26. Each rotatable indicator mask may have a cam surface formed on its periphery to operate an on/off switch.
Patent GB-370164-A (GB)
Title: Improvements in or relating to pre-cast beams for concrete floors, roofs and the like
IPC: E04C3/20
Filed: 1931-03-17
Abstract: 370,164. Pre-cast beams for floors &c. MORTON, B. and MORTON, H. D., Edgeworth, Hawley Lane, Hale, Cheshire. March 17, 1931, Nos. 8121, 9312, and 34936. [Class 20 (iv).] Floor or roof structures composed of precast concrete beams of T-section, in which the upper webs form the entire floor surface, have at each end a web-like extension formed by omitting parts of the top flanges, or by slotting the beam from each end, the beams resting by their extensions on supporting girders or their haunching and being fixed in position by grouting filled into the spaces between the extensions. Fig. 1 shows a form in which the extension b is formed of the whole depth of the web. In Fig. 4, the extension b is of less depth and has a sloping upper surface ; the upper surface may also be horizontal. Fig. 2 shows the beams resting on a girder g and fixed by grouting. The beams may be formed with lateral flanges e, Figs. 2 and 4, which will avoid the need for shuttering for retaining the grouting, or pre-cast blocks cemented in position may be used instead of grouting. Fig. 7 shows a form in which the web is slotted at c, the beam being supported on haunching. The upper surface may be flat or slightly arched, and the edges may be furnished with interengaging tongues and grooves. The undersides may be covered by expanded metal &c. to form a ceiling.
Patent GB-259833-A (GB)
Title: Improvements in or relating to means for controlling draught in stoves and the like
IPC: F24B1/185
Filed: 1926-03-25
Abstract: 259,833. Vickery, G. March 25, 1926. Open fireplaces; cooking-ranges. - A onepiece refractory member 1 forming the back of an open fire-place, as in Fig. 1, or arranged as in Fig. 4 behind the boiler 7 of a cooking- range, is formed with a single flue 3 terminating in a single horizontal slot 2 at the rear of the fire. The top of the flue is controlled by a damper 6, which is withdrawn to open the flue and partially or totally close the main flue when an accelerated draught is required.
Patent GB-995573-A (GB)
Title: Selvage uncurler for webs
IPC: D06C3/06
Filed: 1963-03-01
Abstract: 995,573. Uncurling web selvedges. MOUNT HOPE MACHINERY CORPORATION. March 1, 1963 [April 27, 1962], No. 8264/63. Heading B6B. The curled edges 50, Fig. 1, of a web 46 are uncurled by passage between pairs of opposed discs 12 having separate teeth 14 of flexible material, e.g. of rubber. Alternatively, the teeth may be moulded in a disc of rubber or plastic attached to the disc by removable fasteners (not shown). The discs may be inclined as shown in Fig. 5 by means of spherical bearings 30, Fig. 5 (not shown), within clamps 28, such that the teeth mutually engage, to remove curl, over a desired sector. Movement of the web in the direction indicated in Fig. 1 rotates the discs in the directions indicated by the arrows. The discs may be adjusted laterally of the web to suit varying widths of web.
Patent GB-457581-A (GB)
Title: Improvements in and relating to box locks
IPC: E05B65/44
Filed: 1936-03-19
Abstract: 457,581. Fastenings. DEUTSCH, E., 2, Schwaigergasse, Vienna. March 19, 1936, No. 8288. [Class 44] A fastening for a box comprises a plate 3 pivoted on a pin 2 and having a member 20 of U-shaped cross-section for engaging a notched pin 9 on the lid. A lever 21 pivoted to the lock plate has a projection 23 engaging within the member 20 and a handle 24 projecting outside the casing for releasing the catch. Alternatively the releasing lever may be rigidly mounted on a second U-shaped part 7 on the plate 3.