baber/WOPTO huggingface dataset:
Patent GB-868363-A (GB)
Title: A continuous mixing machine for concrete and similar substances
IPC: B28C5/24
Filed: 1958-07-11
Abstract: 868,363. Mixing appliances. BEDNER, J. W. July 11, 1958, No. 22363/58. Class 86 A horizontal continuous-discharge concrete mixer comprises a stationary drum 6 discharging into a coaxial rotating drum 12 having a flared skirt 16 at the discharge end and fixed blades 42 on its inner surface. A counter-rotating stirrer system comprises two pairs of parallel shafts 30, 32 having blades 38, 40 and helices 39, 41 all arranged to progress the materials through the drums. The blades 38, 40 have their longitudinal axes angled to the plane passing through the shafts and are alternately spaced on each shaft. The machine is powered by a motor 20 and materials are metered into and supplied from a hopper 3 to a shoot 7 through a flap-valve (not shown) and a grid (not shown) which is agitated by a shaft 19 and roller 18 riding on a cam-track 17 circumferential of the rotating drum 12. Water from a trough 4 is supplied through a pipe 8 to a passage 10 surrounding drum 6 and open to drum 12, by means of a valve 9 operated from the hopper flap valve by a linkage 11.
Patent GB-502938-A (GB)
Title: Improvements in and relating to electric heaters
IPC: H01B7/16
Filed: 1938-07-27
Abstract: 502,938. Electric heaters; refractory substances; magnesia. BRITISH THOMSON-HOUSTON CO., Ltd. July 27, 1938, No. 22367. Convention date, July 31, 1937. [Class 22] [Also in Groups III and XI] A refractory, electric insulating-material is made by fusing a mixture of magnesium oxide and beryllium oxide, the beryllium oxide constituting preferably from 5 to 10 per cent by weight of the mixture. The magnesia may be obtained from magnesite of a high degree of purity, or by hydrating pure magnesium metal in an autoclave and converting into the oxide by heating to about 650- 850 C. Beryllium oxide which has been prefired to about 1450-1550 C. may be employed. The mixture is fused by heating to about 3000-3500 C., e.g. in an electric arc furnace, cooled, crushed, e.g. so that it substantially all passes a 40 mesh sieve treated, e.g. by magnetic separation to remove iron, and fired out of contact with metal to about 1100-1400 C. The material is specially intended for use as the insulating refractory material of electric heaters of the kind described in Specification 144,767, [Class 37], comprising, as shown, a helical heating resistance 10, e.g. of nickel chromium alloy, enclosed in a metal sheath 11, which may also be of nickel chromium alloy, and embedded in refractory insulating-material 12. Specifications 434,092 and 452,856 also are referred to.
Patent GB-778442-A (GB)
Title: Control valve mechanism of gaseous fluid-operated windscreen wipers
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: B60S1/10
Filed: 1955-08-04
Abstract: 778,442. Compressed air-engines. LAYCOCK ENGINEERING, Ltd. Aug. 4, 1955, No. 22380/55. Class 122 (3). [Also in Group XXIX] A control valve mechanism for gaseous-fluid operated windscreen wipers consists of a pressure regulator adjusted by a rotary knob 21 and an on-off valve situated between the pressure regulator and the outlet and actuated by a knob 25 concentric with the knob 21. The pressure regulator consists of a closure member 5 coacting with a seat 10 and carried by a piston 14 which is subject to the pressure of the fluid after passing the closure member and loaded by a spring 15, the compression of which is adjusted by screwed member 16 which is rotatable by a square stem 18 connected to the knob 21. The outlet from the pressure regulator passes to a bore 4 containing a closure member 6 which is loaded by a spring 28 and actuated by a face cam formed on the inner face of the knob 25. When the knob 25 is rotated through 180 degrees from the position shown the closure member 6 is urged by its loading spring to a position in which an outlet 29 is in communication with the outlet from the pressure regulator. A second outlet 24 from the valve mechanism is normally closed by a plug 24A but may be connected to the motor of the windscreen wiper whilst the other outlet 29 is connected to parking mechanism for the wiper. In this case the pressure regulator acts also as an on-off valve whilst the valve member 6 serves as a parking valve. Specifications 749,910, 749,911 and 749,912 are referred to.
Patent GB-1154166-A (GB)
Title: A process for production of Linear Polyesters
IPC: C08G63/42
Filed: 1966-05-19
Abstract: 1,154,166. Polyethylene terephthalate. NIPPON SODA K.K. 19 May, 1966 [19 May, 1965(2); 21 July, 1965; 24 Sept., 1965], No. 22407/66. Heading C3R. In the manufacture of polyesters by polycondensing a mixture of bis(beta-hydroxyethyl)terephthalate or an oligomer thereof and terephthalic acid in an amount not exceeding 90 mol per cent based on the bis(beta-hydroxyethyl) terephthalate or its equivalent amount of oligomer, there is used as a catalyst a dicyclopentadienyl titanium dihalide. As an additional catalyst the organic germanium compounds of Specification 1,154,167, may be used. The reaction mixture may include up to 15 mol per cent of isophthalic, adipic, sebacic, isosebacic or p-hydroxybenzoic acid or their alkyl or hydroxyalkyl esters.
Patent GB-479876-A (GB)
Title: Improvements in and relating to the hand-composition of matrices for typographical slug casting machines
IPC: B41B11/52
Filed: 1936-08-14
Abstract: 479,876. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd., SCOTT, R. H., and BILLINGTON, M. E., [Representative of BILLINGTON, J. E.]. Aug. 14, 1936, No. 22431. [Class 100 (iii)] Assembling matrices.-A hand-stick for the hand composition of matrices, which are to be subsequently transferred to the assembler, has an extended member movably or rernovably secured thereto to form a support for spacebauds. The stick comprises a base a, Figs. 1 and 2, having on its underside a rack c, which is engaged by a spring-pressed pawl f on a sliding carriage d carrying a matrix-supporting wall e. A slide h, movable in a slot in the base, carries the other matrix-supporting wall k. The slide carries a hand-grip m, and a fixed hand-grip l extends from the base. A spring o urges the grips together, and the sliding wall k towards the adjustable wall c. The walls may be separated by a finger-operated cam p. The spaceband support consists of a T-shaped member r, fitting into a slot in the base and frictionally held by a leaf spring. In a modification, the spaceband support is in the form of a U-shaped rail t, Fig. 4, pivotally mounted on the base a, and held by a detent either in operative position parallel with the base, or in inoperative position at right-angles thereto.
Patent GB-1303952-A (GB)
IPC: C08K5/50
Filed: 1971-04-19
Abstract: 1303952 Vulcanizable acrylic elastomer compositions AMERICAN CYANAMID CO 19 April 1971 [22 April 1970] 22448/71 Heading C3P A vulcanizable composition comprises an acrylic elastomer containing halogen atoms or epoxy groups, a triaryl phosphine and triallylcyanurate. Triarylphosphines specified are triphenyl-, tris-(2-methyl phenyl)-, tris-(3-methyl phenyl)-, tris-(2,4-dimethyl phenyl)-, tris-(2,5- dimethyl phenyl)-, tris-(1-naphthyl)-, tris-(2- naphthyl)- -, tris - (2 - methoxy phenyl), tris- (3-methoxy phenyl)-, tris-(4-methoxy phenyl)-,  and tris-(4-phenoxy phenyl) phosphines. Preferred elastomers are those obtained by copolymerizing alkyl or alkoxy acrylates with glycidyl acrylate or methacrylate (epoxy groups), or with chlorine or bromine containing monomers such as vinyl chloroacetate. Vulcanization is achieved by heating at above 330 F., for example. Examples are given in which apart from the three essential ingredients, carbon black and stearic acid are also present.
Patent GB-1014387-A (GB)
Title: Improvements in draught excluding or sealing strips
Inventor: BRIGHT ROBERT GRANVILLE
IPC: B60J10/00
Filed: 1963-06-06
Abstract: 1,014,387. Draught excluders. BRIGHT MANUFACTURING CO. Ltd. June 5, 1964 [June 6, 1963], No. 22577/63. Heading E1J. A draught excluder or sealing strip comprises a carrier 1, e.g. a plurality of spaced individual clips or a continuous straddle clip 1 covered with a fabric or moulded covering 2 and a resilient sponge-rubber tubular sealing section 3 stitched at 4 within the tube, to the covering 2, the stitching being thus hidden from view the tubular sealing section, being split at 10 to allow for the stitching operation, and afterwards secured together. Lip 12 integral with, the covering 2 overrides the adjacent part of the sealing section 3, and a web 11 integral with section 3 formed with a rounded extremity is intended to make sealing engagement with the flange supporting the straddle clips. In an alternative construction only one edge of the covering is turned upwardly to cover one leg of the clips and the sealing section 3 is formed with a similar inwardly and upwardly turned part to cover the other leg of the clip.
Patent GB-531853-A (GB)
Title: Improvements in or relating to devices for correcting finely and when working the amplitude of the advance movement of a band of cardboard in a shaping machine
IPC: B65H20/04
Filed: 1939-08-03
Abstract: 531,853. Feeding webs. BOBST & FILS SOC. ANON. Aug. 3, 1939, No. 22579. Convention date, Aug. 5, 1938. [Class 100 (i)] In a mechanism for feeding a strip of cardboard to a shaping &c. machine in which movement is imparted to the feeding device by a toothed segment, the pivot of the segment is displaceable for adjustment of the angle of oscillation and thus of the feed of'the strip. The feed rollers 4, 5, Fig. 1, are driven through a freewheel device 13, 14 and segment 12 oscillated by a slider crank mechanism, the crank pin 7 being adjustable by a screw 15. The segment turns about an eccentric 19 angularly adjustable while the machine is running by means of a handwheel 23 on a screwed rod 22 connected to an arm 21 integral with the eccentric. The handwheel is confined between two lugs 25 on a slidable block having a second pair of lugs engaged by a cam 28 on an arm 26 movable between two adjustable stops 30. Momentum of the rollers 4, 5 may cause a slightly different amount of feed for the same setting of the parts if the machine is running at a high or low speed and the two positions of the arm 26 provide for the same feed length at both speeds. The movement of the arm 26 may be effected automatically as the speed of the machine is changed. In a modification, Fig. 2, instead of providing the parts 26, 28, 30, the arm 21 is in two pivotally connected parts, 21, 31, the rod 22 being connected to the part 31 which is movable into two positions relatively to the part 21 and as determined by stops 35, 36 by an electromagnet 37 actuated simultaneously with the change of speed of the machine.
Patent GB-172065-A (GB)
Title: Improved means of combination of solid and liquid fuels
IPC: C10L1/32
Filed: 1920-07-30
Abstract: A mobile fuel of the kind consisting of solid carbonaceous matter reduced to colloidal dimensions or thereabouts in liquid fuel, is prepared by soaking the finely powdered solid for one or two days in creosote or other heavy hydrocarbon having a partially solvent action on it, grinding the paste formed, and mixing with the liquid fuel. Suitable liquid fuels specified are American crude petroleum or other mineral oil, coal-tar or its fractions, and the liquid distillates from wood or peat.  Two or more mutually soluble liquids may be mixed.  The process is especially applicable to lignites, particularly those of Australia and Bikanir (India) and other solid carbonaceous bodies that crumble on weathering.  This breaking down may be facilitated by soaking or sprinkling the solid with water, preferably containing ammonia or caustic soda, and drying; or slaked lime or dry soda may be added to the dried solid.
Patent GB-186503-A (GB)
Title: Improvements in or relating to hoods for motor cars and other vehicles
IPC: B60J7/12
Filed: 1921-08-26
Abstract: 186,503. Bunn, C. W., and Eastwood, G. Aug. 26, 1921. Hoods.- Consists of an improved tie-member for connecting links supporting the front extension rail of a hood for motor-cars &c. to the rail to prevent movement in the extended position. The upper plate 1, Fig. 1, of the centre pillar 2 of a coupÚ hood fitting projects above the pivots of the members 5 and is slotted to receive the pivot member of the links 8, a wing-nut 9 or the like being provided for clamping the members together. The projection has a face against which the sides of the members 5 contact, and an horizontal step on Which they rest when extended. the projecting member 10, Fig. 5, may have, alternatively, a projecting screwed stud 11 adapted to engage in a counter sunk hole 14 and slot 15 in a member 13 projecting from the links 12. The projecting member may be attached to the longitudinals of a cape-cart hood.
Patent GB-721249-A (GB)
Title: Improvement in alkyd resins
IPC: C08G63/553
Filed: 1952-09-10
Abstract: An unsaturated alkyd resin, preferably having an acid number of about 20 to 80, is made by heating together (1) 1 mol. of an alpha, beta-unsaturated, alpha, beta-dicarboxylic acid or anhydride (e.g. maleic acid or anhydride); (2) at least 1 mol. of a glycol (e.g. ethylene; propylene-1,2; butylene-1,2; or butylene-2,3 glycols), and (3) about 0.3 to 0.4 mols. of dicyclopentadiene.  Up to 30 mol. per cent of the acid may be replaced by phthalic anhydride or tetrachlorophthalic anhydride. p  The alkyds may be copolymerized with unsaturated compounds containing the group CH2=C<, e.g. styrene, chlorinated styrene or triallyl cyanurate.  In examples a mixture of maleic anhydride, ethylene glycol and dicylcopentadiene was heated under atmospheric pressure first for an hour at 150-160 DEG  C., and then for three hours at 190-200 DEG  C.  The resulting alkyd was cooled, and 10-90 per cent by weight of styrene added together with hydroquinone as a polymerization inhibitor.  Copolymerization of the mixture was effected by adding benzoyl peroxide and heating to 80-110 DEG  C.  The copolymers may be used to impregnate glass cloth.
Patent GB-636059-A (GB)
Title: Process of reducing cuprous oxide coatings to produce patterns or designs, and bathsfor use in the process
IPC: C25D11/00
Filed: 1947-08-15
Abstract: 636,059. Electrolytic reduction of cuprous oxide. KANSAS CITY TESTING LABORATORY. Aug. 15, 1947, No. 22741. Convention date, July 23, 1946. [Class 41] A bath for use in a process for electrolytically reducing cuprous oxide to produce patterns or designs comprises 7.5 to 60 grams per litre sodium hydroxide and .2 to 5 grams per litre ammonia. The bath may also contain up to 120 grams per litre sodium carbonate and up to 10 grams per litre sodium nitrate. The alkalimetal equivalents of the sodium hydroxide, sodium carbonate and sodium nitrate may be used. To counteract the effect of light on the reduction of the oxide, the bath may contain a dyestuff, for example, phenosaffranine, which dyes the solution red. Specifications 452,464 and 541,934 are referred to.
Patent GB-1361603-A (GB)
Title: Liquid level detection devices
IPC: G01F23/64
Filed: 1971-08-11
Abstract: 1361603 Liquid level control; magnetic switches; fluid actuation of switches H J PROCKTER 11 Aug 1971 [11 May 1970] 22748/70 Heading G1H [Also in Division H1] In a liquid level detecting device a support 34 carries a magnet 35 and is supported on a rod 33 slidable in a sleeve 29 and weighted at 39 at the end of a wire or cord 38 and the arrangement is such when the liquid level drops a float 40 moves on to the weight 39 to pull the support and magnet 34, 35 downwards to move the magnet 35 into the vicinity of a lower magnetically operable needle switch 31 to operate a remote indicator. In the event of the liquid rising the float 40 moves a flanged member 36 upwards to actuate an upper switch 31 by the magnet 35. Electrical contacts are used in the arrangement of Fig. 1 (not shown).
Patent GB-1104607-A (GB)
Title: Presensitized printing plate and method of making same
Inventor: FUNGE HARRY
IPC: B41N3/03
Filed: 1966-05-23
Abstract: An aluminium sheet or foil is cleaned with sodium triphosphate and nitric acid, treated with an acidic solution containing molybdate ions to render the sheet hydrophilic and then with a reducing agent to remove excess molybdate from the surface.  The acidic molybdate solution may comprise molybdic acid or sodium or ammonium molybdate with phosphoric, nitric or arsenious acid, sodium bisulphate, sodium biphosphate or aluminium chloride.  A thiosulphate or ferrous sulphate is specified as reducing agents. The hydrophilic sheet may then be coated with a light-sensitive layer (see Division G2).
Patent GB-245385-A (GB)
Title: Improvements in or relating to saws
IPC: B27B17/00
Filed: 1925-09-14
Abstract: 245,385. Northall, A. G. de. Sept. 2, 1925, [Convention date]. Movable-abutment type. - A compressed air motor forming part of a power-driven saw comprises toothed rotors 26, 27 with interengaging convolute ribs 31. Air is admitted near the middle of the ribs from an inlet 23 by way of passages 35 and is exhausted through ports 33 and passages 34.
Patent GB-306072-A (GB)
IPC: D21C3/22
Filed: 1928-08-08
Abstract: 306,072. Soc. Anon. Papeteries Navarre. Feb. 15, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Pulp, preparation of.-In a process for extracting cellulose from any kind of vegetable, the material is heated in a series of heaters charged with and emptied of cellulose, in turn, the lye, maintained at the required temperature, being systematically circulated through the heaters so that the material in the most advanced heating stages receives the fresh lye while the raw material is brought into contact with the lye which has passed through the previous heaters. By this method, soda wood cellulose free from the usual brown colour and straw cellulose the colouration of which is hardly noticeable may be obtained.
Patent GB-910013-A (GB)
Title: Improvements in and relating to roof lights
Inventor: FREER HAROLD
IPC: E04D13/03
Filed: 1960-06-30
Abstract: 910,013. Rooflights. DUPLUS DOMES Ltd. June 8, 1961 [June 30, 1960], No. 22928/60. Class 20 (3). A domed plastic rooflight 1, 2 is secured to an upstand 5, including channel section 9, by nuts 7, 8 and bolts 6 and depressions in the flange la of the rooflight which receive the heads 6a of the bolts are filled with a cement compatible with the plastic material forming the light.
Patent GB-882303-A (GB)
Title: Improvements in windscreen wipers
Inventor: SMITHERS PHILLIP GEOFFREY KENT
IPC: B60S1/34
Filed: 1959-07-03
Abstract: 882,303. Securing windscreen wiper arms on shafts. TRICO-FOLBERTH Ltd. July 1, 1960 [July 3, 1959], No. 22975/59. Class 80 (2). A windscreen wiper arm 28 is secured on its drive shaft 8 by an inwardly tapering splined sleeve 2 engaging a correspondingly formed socket 22, the splines being disengaged by inward movement of socket 22 to enable the relative angular setting of the sleeve and socket to be adjusted. As shown, the wiper arm is retained on its shaft by a spring latch plate 12, the upper horizontal limb of which is formed with two intersecting hole portions 16, 14, the former of which normally engages the bottom of a groove at the end of shaft 8, while the latter is sufficiently large to permit the free passage of shaft 8. The arm may be disconnected by rotating it outwardly about a pivot 36, a cam projection 38 then distorting latch 12 as shown, to bring hole 14 into alignment with the end of shaft 8 for removal of the sleeve and socket. In a second embodiment, Fig. 2 (not shown), the sleeve is secured to the end of the shaft by a nut.
Patent GB-1528404-A (GB)
Title: Recovery of polyvinyl alcohol
IPC: B01J21/02
Filed: 1976-06-04
Abstract: 1528404 Coagulating polyvinyl alcohol solutions SANDO IRONWORKS CO Ltd 4 June 1976 [4 June 1975] 23093/76 Headings C3L and C3P [Also in Division Cl] PVA is recovered from aqueous solutions thereof by coagulation complexing, in the presence of (a) boric acid or a borate and (b) another inorganic salt, a part at least of the coagulation being carried out in the presence of (c) a cationic quaternary ammonium salt, especially surfactant. A suitable apparatus is also described, including repeated coagulation and separation stages.
Patent GB-736976-A (GB)
Title: Typewriters
Inventor: SIMON MARTIN HERBERT
IPC: B41J3/24
Filed: 1952-09-15
Abstract: 736,976. Typewriters. VALMOR, Ltd. Aug. 25, 1953 [Sept. 15, 1952; Jan. 13, 1953], Nos. 23137/52 and 972/53. Class 100 (4). Ink - ribbon mechanism.- A duplicating arrangement for a typewriter comprises a hectograph ribbon 16 fed along the printing line from a supply spool mounted in a detachable casing 15 to a feeding roller 32, so that the ribbon is fed a distance equal to a character width at each letter-space movement of the typewriter carriage. The feeding roller 32 is held against rotation during carriage return movement so that a new length of ribbon is drawn into place. The spool 15 and roller 32 are mounted on brackets 12, 11 attached to the sides of the machine and roller 32 is driven by a coiled spring attached to the roller shaft and to a drum 39. The drum is substantially the same diameter as the feed roller 32 and is rotated to wind up the spring during carriage return movements by a flexible band 42 attached to the typewriter carriage. A pawl 40 on the drum free-wheels over ratchet-wheel 38 attached to the roller 32, so that it is not rotated backwardly. The casing 15 is pivotally mounted so that a lip forming an exit slot for the ribbon bears on it and maintains it in tension. The supply spool is formed with grooves so that only spools so provided will fit corresponding projections on the rotatable spool support and slipping between the two is prevented. Sheet guiding arrangements. To facilitate the entry, either from the front or the back of the platen, of a sheet between the ribbon 16 and a front ribbon guide 26, Fig. 6, the plate 45 is hingeable a limited amount at 46.
Patent GB-180259-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F02F3/00
Filed: 1921-08-31
Abstract: 180,259. Banks, W. J. Aug. 31, 1921. Pistons; piston packing.- In order to facilitate removal of the packing, the skirt 4 and the crown 10 of the piston of an internal combustion engine have telescoping parts of two diameters and contain the packing between them. A shoulder on the crown enters a recess 7 in the skirt, the two parts being secured together by the gudgeon pin, which passes through the bosses 5 on the skirt and perforations 14 in an extension of the crown. The packing may consist of bevelled split rings 21 expanded by a bevelled spring ring 22, or of ordinary split rings separated by solid rings.
Patent GB-626265-A (GB)
Title: Improvements connected with the construction of chairs and the like
IPC: A47C5/04
Filed: 1947-08-21
Abstract: 626,265. Furniture frames. DAWTREY, C. R. Aug. 21, 1947, No. 23150. [Class 52 (ii)] In a chair or the like constructed in sheet material such as synthetic resin a sheet is bent so as to form the front 2 and sides 3, flanges 4 being formed whereby the bent sheet is welded or otherwise secured to a sheet forming the rear 5 of the chair and the back 6. A sheet dished as shown is secured in place to form the seat 7 and a flanged sheet 13 forms a shelf and reinforces the chair. The sheet 13 is curved inwardly at the front 14 to provide leg clearance. The front 2 is cut out from near the seat 7 to the foot and the sides and rear are provided with apertures such as 10 to lighten the structure. The lower parts of the sides and rear are cut away as at 12 to define the legs.