baber/WOPTO huggingface dataset:
Patent GB-271206-A (GB)
Title: Improved means for eliminating the smoke of domestic firegrates and ranges
IPC: F24B1/199
Filed: 1926-03-24
Abstract: 271,206. Reed, C. A. P. March 24, 1926. Open. fireplaces; feeding.- Fuel is preheated, but not coked, in chambers c arranged one at each side of a fireplace or range grate, air heated by the fire passing round the bottom, outer side, back, and top of each chamber to one of two flues s at the sides of the chimney flue f, and being conveyed to other places to be heated. In the form shown, the tops of the chambers c are inclined towards one another, so that the open mouths d extend into the combustion space e. At the front the chambers are provided with an upper door, for filling, and a lower door through which the fuel may be pushed through a side opening i and over a shelf j on to the fire. The closed front of the ashpit is provided with an air regulator, through which air passes to chambers n, where it is heated through the grated sides o of the fireplace, and thence to flues r, q at the outer sides and backs of the fuel-containers c.
Patent GB-757940-A (GB)
Title: Improvements in and relating to gas turbine power plants
Inventor: WELSH ROBERT JAMES
IPC: F02C3/22
Filed: 1954-03-19
Abstract: 757,940. Gas turbine plant; axial-flow compressors. ENGLISH ELECTRIC CO., Ltd. March 15, 1955 [March 19, 1954], No. 8093/54. Classes 110(1) and 110(3) A gas turbine plant incorporates a multistage, axial-flow compressor 21, (see also Fig. 1, not shown), having separate zones 23, 24 for feeding air and gaseous fuel respectively through flame traps 26, 25 to a combustion chamber 28, the air being preheated in a heat exchanger 27 in series with the turbine 22. The stator and rotor blades of the compressor may be of the free vortex type or else radially sub-divided by platforms. Specification 741,506 is referred to.
Patent GB-877515-A (GB)
Title: Toy railway
IPC: A63H19/00
Filed: 1958-03-13
Abstract: 877,515. Toy railways. EINFALT, A., and EINFALT, J., [trading . as EINFALT BLECHSPIELWARENFABRIK GEB.]. March 13, 1958 [Jan. 13, 1958], No. 8124/58. Class 132(3). A railway shunting toy comprises single track sections E, E' hinged at S, S' to a double track section 1, the single sections being' made so as to fold beneath the double section. Projections 2, 3, 5 for engaging control and coupling members of clockwork propelled locomotive 6 and of carriages W, W<SP>1</SP> are formed on the track sections. A control member on the locomotive has depending ends 9, 9<SP>1</SP> for engagement with the projections 5, 5<SP>1</SP> for reversing the locomotive, and the carriages have coupling members 10 of which the ends 13 are vertically movable and engageable in an aperture 14 or transverse member 15 of the locomotive; the members 10, also have depending projections A. In operating the toy, the carriages are placed one on each of the two tracks of the track section 1 and the locomotive is allowed to engage the carriage W of which, when a coupling portion 13 engages in the aperture 14, the corresponding end of the member 10 is lifted and the projection A clears the track projection 2. As the locomotive approaches the end of the section E<SP>1</SP> the projection 5<SP>1</SP> engages the locomotive control member 9<SP>1</SP> and the locomotive is reversed and passes on to part F of the double track section ]. The carriage W<SP>1</SP> now becomes coupled to the locomotive, and carriage W is uncoupled by the action of the track projection 3. The locomotive then pushes the carriage W<SP>1</SP> on to the single track section E where the locomotive is reversed by the projection 5 and, now drawing carriage W<SP>1</SP>, travels again on to part F<SP>1</SP> of the double track section 1. The carriage W is then uncoupled by ,the action of the projection 3<SP>1</SP> and the locomotive, after reversal by the projection 5<SP>1</SP> on section E<SP>1</SP>, engages carriage W on part F of section 1 to recommence the cycle with the carriages having been interchanged and the locomotive starting from the track section E<SP>1</SP>. The sequence continues until the clockwork has run down.
Patent GB-1062577-A (GB)
Title: Photographic camera
IPC: G03B9/70
Filed: 1964-02-27
Abstract: 1,62,577. Photographic cameras; exposure control. EASTMAN KODAK CO. Feb.27, 1964 [Feb.28, 1963], No.8159/64. Heading G2A. A camera is changed from daylight to flashlight operation by the unlatching of a flash unit 49 which thereby sets the shutter mechanism to its slowest speed and couples the diaphragm aperture setting mechanism to the focusing means of the lens. In the latched position of Fig. 2, unit 49 holds lever 51 in the raised position against spring 55 which determines the position of a spring-urged flash control slide 57 whose toe 61 abuts cam 63 on a focus coupling lever 43. Lever 43 is pivotally attached to a follower lever 35 pivoted at 39 whose position is set by the movement of stud 41 in a cam slot 33 in the rangefinder ring 31. When release slide 23 is manually depressed, exposure control bar 11 is moved anti-clockwise by spring 15 about adjustable pivot 17 until arrested by light value member 24 which is set manually or automatically as a function of scene brightness. Bar 11 is coupled to and sets the shutter speed and diaphragm control mechanisms by this movement. Lug 65 on bar 11 passes outside extension 67 on lever 43 so that the exposure control is not affected by the focus setting. When unit 49 is unlatched, powerful spring 55 depresses slide 57 through lever 51 so that toe 61 moves to the lower indented portion of cam 63 thereby allowing spring 47 to move focus coupling lever 43 counter-clockwise about pin 45. Extension 67 is then in the path of lug 65 on bar 11. Projection 69 on slide 57 depresses shutter speed control 25 to the slowest setting. By depression of release 23, bar 11 now moves anti-clockwise until lug 65 abuts extension 67 whose position is determined by the setting of range finder ring 31. Pivot 17 is vertically adjustable on the scale Sv depending on the film sensitivity.
Patent GB-699236-A (GB)
Title: Apparatus for use in the packing of articles or commodities in boxes or other containers
Inventor: HUBBLE HARRY DENNISS
IPC: B65B25/04
Filed: 1950-03-31
Abstract: 699,236. Packing apples in boxes. HERNDEN FARMS, Ltd.. June 27, 1951 [March 31, 1950, Oct. 18, 1950], Nos. 8199/50 and 25408/50. Class 94(i) [Also in Group XXX] Apparatus for packing apples in boxes comprises a conveyer 15, for transporting graded apples, a receptacle 8 for apples, arranged above the conveyer, a filling station comprising a support stand which includes slideways and supports 22a, 23a, inclined downwardly away from the conveyer, by which the boxes to be filled may be supported while being filled by an operative with apples from the receptacle 8, and slideways 22b, 23b, inclined downwardly towards the conveyer, by which the filled boxes may be slid on the conveyer 15. An upper conveyer 32 is adapted to feed the filled boxes received from the first-mentioned conveyer 15 from a feeding position to a packing and wrapping station at which there is a box support stand 36 comprising slideways and supports 39, inclined downwardly away from the conveyer, by which the filled boxes removed from the conveyer 32 by an operative may be slid downwards from the upper conveyer 32 and supported in front of the operative. Other slideways and supports include slideways 41, inclined downwardly away from the conveyer upon which empty boxes may be supported while they are being filled with apples removed from the filled boxes and wrapped by the operative and supports 40 by which the boxes filled with wrapped apples may be fed on to a lower conveyer 51 arranged below the upper conveyer 32. The conveyers are of the gravity feed roller type. The various stands are adjustable in height, having telescopic supporting legs. The receptacle 8 comprises a flat ratatable bin which is surrounded by a fixed guard 10 with a mouth 13. A modified form of support stand at the packing and wrapping station comprises, Fig. 8, a slideway 66, of the same construction as the slideway 39, having pivotally mounted at 79 adjacent thereto, a slideway 74 adapted in one position, resting on an outer cross member 84, to support a box while it is being filled with wrapped apples, and in another position, resting on an inner cross member, to allow the filled box to slide down on to the lower conveyer.
Patent GB-527769-A (GB)
Title: Improvements in or relating to apparatus for producing foam for fire extinguishing purposes
IPC: A62C3/02
Filed: 1939-03-15
Abstract: 527,769. Fire-extinguishing foam. FOAMITE, Ltd., GILBERT, V. G. W., and PITSTOW, H. P. March 15, 1939, No. 8309. [Class 47 (ii)] Apparatus for producing fire foam comprises a nozzle 1 producing a jet 2 of foam-forming liquid and a number of devices 3 having rotary valves 4 projecting into and driven by the jet whereby additional air is drawn into the jet. The members 3 may be arranged along the sides of a square surrounding the jet. The vanes may be of fine wire or of metal strips. If necessary a number of devices 3 may be arranged along the jet.
Patent GB-1090164-A (GB)
Title: Improvements relating to plastics compositions
Inventor: DRYER STANLEY RAYMOND COLLINS
IPC: C08K3/04
Filed: 1966-02-25
Abstract: A polymer composition comprises 100 parts by weight of polyvinylchloride, 20-100 parts of carbon black and 75-125 parts of a fraction of aromatic hydrocarbons obtained by re-extraction of an extract derived from solvent extraction of a mineral oil fraction or residue. There may also be present a calcium stearate lubricant and a lead stabilizer.  The extracts used are described in Specification 1,068,936.
Patent GB-1479839-A (GB)
Title: Materials comprising a support bearing a conductive layer
IPC: G03C1/89
Filed: 1975-02-28
Abstract: 1479839 Coated products EASTMAN KODAK CO 28 Feb 1975 [1 March 1974 30 Aug !9741 8450/75 Heading B2E [Also in Division G2] A support is coated with a layer comprising an electrically conductive polymer containing a crosslinkable -OH or -CO- group cross linked with hydrolysed tetraethyl orthosilicate, the conductive layer having a surface resistivity or 1 x 10<SP>2</SP> or ohm/square or lower (measured as described) and an overcoat layer coated from an aqueous based coating composition. The coated support may be an electrophotographic material wherein the aqueous based overcoat layer comprises an insulating polymer containing a photoconductor. Alternatively, it may be a photographic material, the aqueous based layer being a silver halide emulsion layer. The aqueous based composition may be a solution or dispersion and non-aqueous solvents may be present. Preferred conductive polymers are those comprising at least 90% monomers of the formula where R is an alkyl group containing 1 to 18 carbon atoms, e.g. methyl, ethyl, butyl, octyl or tectyl and R<SP>1</SP> is R or propionamido and A is an anion, e.g., Cl, Br, I, OH, HSO 4  or H 2 PO 4 . If R<SP>1</SP> is an alkyl group the polymer units contain additional units containing the -CO- or -OH groups to be cross linked. Suitable comonomers are acrylamide, diacetone acrylamide, N-vinyl pyrrolidinone or N- methylolacrylamide. A particularly preferred polymer is poly[N-methyl-N-#-propionamide or -3, 5-methylene piperidinium chloride]. The conductive polymer is mixed with the hydrolysed tetraethyl orthosilicate and dried at up to 110‹C or higher from 1 minute to 24 hours to effect the cross linking. The weight ratio of conductive polymer to hydrolysed tetraethyl orthosilicate may be from 1:2 to 9:1. Suitable supports are glass, aluminium, copper, zinc, tin, cellulose acetate, cellulose nitrate, cellulose acetate-butyrate, polyethylene terephthalate, polystyrene and paper, including paper coated with polyethylene or polypropylene. The coating may be applied by dip coating, brushing, rolling or spraying. The layer may also contain additives such as polymeric extenders, e.g. polyvinyl alcohol and clays, talcs and calcium carbonates and pigments such as barium sulphate or silica. Insulating overcoats may be of polyvinyl acetals such as polyvinyl butyral, vinyl acetate-crotonic acid copolymer, polyvinyl acetate, polyvinyl trifluoroacetate and polyvinyl heptafluorobutyrate. This layer may also contain pigments such as barium sulphate, calcium carbonate, silica, zinc oxide and titanium dioxide.
Patent GB-1044882-A (GB)
Title: Farm-animal feeding house
IPC: A01K1/02
Filed: 1964-02-28
Abstract: 1,044,882. Animal pens. BLACK, SIVALLS & BRYSON, Inc. Feb. 28, 1964 [March 4, 1963; Jan. 7, 1964], No. 8486/64. Heading E1A. [Also in Division A1] A farm-animal feeding house 10 comprises a pen having a roof 16, a circular wall 14 and a floor 11, on which are partitions 17 forming stalls 20, a sanitation trough 12 in the floor 11 sloping downward toward the trough 12, over which is a grate 13, and a watering device 38 in each stall above the grate 13, a feeding station being near the opposite end thereof. An upper floor 18 for stalls 19 is secured to the partitions, having grates 39 and a perforated section 86, through which feed fed from above to the floor 11 is directed by a deflecting panel 88, mounted about the periphery. A removable fence on the floor 11 forms substalls 24 from the stalls 20, above which is an annular catwalk 23. Radial gates such as 26, 29 are secured to the centre of the floor 11 at one end, the other end thereof contacting the inner ends of the stalls 19, 20, the gate 29 being a ramp sloped from the floor 18 to the floor 11. An auger feed conveyer 112 rotated about the centre of the house 10 is selectively and concurrently operable to discharge feed toward the section 86 and toward an area on the floor 18 radially inward thereof.
Patent GB-472321-A (GB)
Title: Improvements in or relating to antiseptic appliances for polishing teeth
IPC: A61K8/73
Filed: 1936-03-21
Abstract: An appliance employed in cleaning and polishing the teeth comprises a rod or other body formed by drying a mixture of a cellulosic fibrous material and boric acid solution and moulding the product under heat and high pressure.  For example, young green branches of poplars, birches or conifers, containing little or no lignin, are cleaned, finely comminuted, extracted with alcohol and filtered; the residue is decolorized with aqueous sodium hypochlorite and hydrochloric acid, dechlorinated with sodium sulphite and hydrochloric acid in solution, washed, and boiled with boric acid solution until dry; the alcoholic extract is dried and washed with water to remove tannin and bitter materials, and then again dried and dissolved in alcohol; the solution, containing resins, waxes and the like, is then added to the dry cellulose-boric acid mixture and the whole dried, heated and moulded under high pressure to form rods or the like.  Cotton wool may be used instead of wood cellulose.
Patent GB-826820-A (GB)
Title: Method of and apparatus for breaking previously scored glass sheets along the cutting line
IPC: C03B33/12
Filed: 1958-03-17
Abstract: 826,820. Dividing glass sheets. SPIEGELGLASWERKE GERMANTA A. G. March 17, 1958 [May 25, 1957], No. 8487/58. Class 56. In the breaking of previously scored glass sheets 1 lying flat on a table 2, suction devices 8 are positioned at intervals along the cutting line 3 and the sheet if lifted thereby, the weight of the glass either side being sufficient to break the sheet 1 along the line 3. A frame 4, with end handles 9, has a tube 5 to be over the lines 3 provided at intervals with suction cups 8 or discs or the like, the cups 84 and tube 5 being connected to a vacuum plant through one or more hollow struts 6 and a union 7.
Patent GB-1144873-A (GB)
Title: Process of casting metals
IPC: B22D18/06
Filed: 1966-02-25
Abstract: 1,144,873. Casting processes; casting composite articles. DOW CHEMICAL CO. 25 Feb., 1966 [5 March, 1965], No. 8494/66. Heading B3F. Molten metal or a molten mixture of metals, e.g. Mg or an alloy thereof or an Al alloy around 700-760‹ C., is drawn into a mould or into the pores or interstices of a porous or agglomerated body by the vacuum created by the reaction of at least one metal component of the melt with each gaseous component (excluding any rare gases present) of atmosphere in the mould, pores or interstices since all openings to the mould, or all the pores, are inserted in the metal. For example, with air in the mould &c., some of the Mg forms a small amount of oxide and nitride to remove the air, assisted if necessary by shaking or vibrating the mould. A mould with a small inlet may be heated before charging, e.g. it may be both preheated and filled by immersion in the melt. A piece of sponge iron or coke may be merely immersed in molten Mg after heating. The impregnated sponge iron may be used as a ferroalloy. Powders of W, Mo, Ta, silicon carbide, aluminium oxide or boron may be placed in the mould in order to be impregnated. Felts of iron, steel or graphite, or steel or iron wool or bundles of wires of these metals or of W, Mo or Ta or fibres of W, Mo, Ta, asbestos, carbon or boron may be impregnated. Moulds of graphite, carbon, steel, and iron are mentioned and particular examples refer to a glass mould filled with silicon carbide grains and submerged, after preheating to 700‹ C., in an A1 base alloy containing 5% Mg at 760‹ C. for two hours and to stainless steel cables of many wires compressed and with a metal tube around them, heated to 650‹ C. and submerged in Mg at 730‹ C. for 30 minutes.
Patent GB-878538-A (GB)
Title: Automatic brake for winches and the like
IPC: B66D5/00
Filed: 1960-03-10
Abstract: 878,538. Disc brakes. CHIOLERIO, F. March 10, 1960 [March 25, 1959], No. 8537/60. Class 103 (1). An automatic device has a disc brake for braking and locking a driven shaft 2 on stopping of a driving shaft 1, is wholly mechanical and comprises a backlash connection between shafts 1 and 2 permitting limited angular displacement of shaft 1 from its inoperative position before it drives shaft 2, this angular displacement being utilized for releasing and applying the brake on starting and stopping of shaft 1. A square section bush 7 on shaft 2 surrounds with clearance the square section end 1<SP>1</SP> of shaft 1, the end 1<SP>1</SP> and shaft 2 having co-operating truncated pyramidal surfaces 5, 6. Three springs 11 act on a pressure plate 4<SP>1</SP> to engage discs 9, keyed to bush 7, with discs 4 keyed to a fixed housing 3, the plate 4<SP>1</SP> being mounted by a bearing 15 on shaft 2. With shaft 1 stopped, the surfaces 5, 6 mate and springs 11 apply the brake to hold shaft 2 stationary. On rotation of shaft 1, the shaft 2 is initially moved axially by the camming of surfaces 5, 6 to move plate 4<SP>1</SP> through shaft collar 2<SP>1</SP> and bearing 15 to release the brake, the shaft end 1<SP>1</SP> then engaging bush 7, Fig. 3, to drive shaft 2. On stopping of shaft 1, the shaft 2 rotates until faces 5, 6 mate when springs 11 re-apply the brake to stop shaft 2.
Patent GB-903501-A (GB)
Title: A screening and mixing machine for preparing and loading bituminous mixes
IPC: E01C19/10
Filed: 1960-03-11
Abstract: 903,501. Mobile machines for preparing bituminous mixes. HEISE, C. H. March 11, 1960 [April 2, 1959], No. 8592/60. Class 107. A mobile machine for the preparation of bituminous mixes for road building purposes, comprises a wheeled bridge-shaped chassis for supporting a mixer and two-part mixer tower 22, 23, a hot bucket elevator 45 for conveying heated material from a drying drum (not shown) to the mixer tower and a loading bucket elevator 48 for supplying the mixer output to a hopper. The machine is prepared for transportation by pivoting the upper part of the tower 23 through an angle of 180 degrees to a position between the chassis members, lowering the hot bucket elevator, which is also provided with wheels, to a horizontal position and uncoupling it from the chassis and retracting the telescopic arms 51, 50 of the loading bucket elevator to a position between and below the chassis members. The upper part 23 of the tower is rigidly connected by brackets 24 to a pivot shaft 25 which is mounted in bearing brackets 26 attached to the machine chassis and the ends of the shaft are rigidly connected to two crank arms 27, 28, offset by approximately 60 degrees. The ends of the crank arms are pinned in slots formed in the ends of racks 29, 35 which are driven by hand winches 34, pivotally mounted on the chassis 10. These winches control the pivoting of the top part of the tower about shaft 25. The hot bucket elevator is supported at bearing points 44 on the swept down portion of the chassis 10 and is pivoted about these points by a pair of hand winches 57 which are pivotally connected to brackets 60 attached to the chassis and engage the elevator at points 62 by means of their racks 61.
Patent GB-579505-A (GB)
Title: Improvements in or relating to the manufacture of pyridine carboxylic acids
IPC: C07D213/803
Filed: 1944-05-06
Abstract: Pyridine carboxylic acids are produced by heating for 1 to 3 hours at between 150 DEG  and 250 DEG  C. a mixture of a pyridine hydrohalide and the betaine of an N-alkyl pyridine carboxylic acid having the general formula <FORM:0579505/IV/1> wherein R represents an alkyl group.  An optimum temperature of 200 DEG  C. and heating period of approximately 2 hours is specified and pyridine hydrochloride is the hydrohalide preferred, but other pyridine hydrohalides, e.g. the hydrobromide may be used, resulting in lower yields.  In examples: (1) trigonelline admixed with pyridine hydrochloride is heated in an open vessel at about 200 DEG  C. for nearly 3 hours and impure nicotinic acid is isolated by treating a neutralised aqueous solution of the reaction products with a soluble copper salt to precipitate copper nicotinate which is decomposed in aqueous suspension in presence of formic acid, by treatment with hydrogen sulphide; a mixture of trigonelline (88 per cent pure) and pyridine hydrochloride is heated (2) for about 1 hour, and (3) for about 2 hours at approximately 200 DEG  C., being subsequently treated as in (1) to yield substantially pure nicotinic acid; (4) trigonelline (89 per cent pure), admixed with pyridine hydrobromide, is heated for about 2 hours at approximately 200 DEG  C., and the product is isolated as in (1).  The Specification as open to inspection under Sect. 91 comprises also the cases wherein R, in the specified general formula, may represent an aralkyl or aryl group.  This subject-matter does not appear in the Specification as accepted.
Patent GB-390320-A (GB)
Title: Improvements in and relating to pivoted sliding windows
IPC: E06B3/50
Filed: 1932-03-24
Abstract: 390,320. Pivoted-sliding windows. BIEL, H., 3, Viktoria Strasse, Hzehoe, Germany. March 24, 1932, No. 8766. [Class 20 (iii).] A pivoted-sliding window is provided with means to release the sashes for pivoting movement and simultaneously to lock the pivot against sliding movement in its guide. As shown in Fig. 3, the pivoted lever 5 retains each sash against pivoting and when rotated about the pivot 7, to free the sash, inserts a stop 10 above the pivot 12. A projection on the lever 5 forms a support for the tilted sash. A separate antitilting stop 4 may be connected by a link 17 and lever 23, or cam, to the lever 5, and actuated to free the sash when the stop 10 is imposed on the pivot. Rack and pinion connections may replace the levers between the stop 10 and lever 4. The stop 10 may have cam guides and a cam-shaped end by which the pin 12 will be drawn into the base of the groove 11, Fig. 15, and retaining pins may be provided on the lever 35 adapted to pass through holes in the stop and frame to prevent disengagement of the stop. A spring-pressed catch, Fig. 13, may be provided to retain the stop in the withdrawn position by engaging the fixed plate 6. The front of the catch 29 is recessed for disengagement by inserting a pointed tool.