baber/WOPTO huggingface dataset:
Patent GB-1424736-A (GB)
Title: Faced extruded panels of wood particles
IPC: B27N7/00
Filed: 1973-06-28
Abstract: 1424736 Paper-faced wood particle panels ISOREL 28 June 1973 [28 June 1972 2 March 1973] 30852/73 Heading B5N In a faced extruded panel of wood particles, the facing comprises a first layer of wet strength kraft paper having a basis weight between 150 and 400 grams per sq. m. bonded to a second layer of paper having a basis weight between 40 and 200 grams per sq. m. by a film of plastics material having a basis weight between 18 and 50 grams per sq. m., the facing having a tearing strength, after 24 hours immersion in water, of from 30 to 40% of the initial tearing strength, with a maximum elongation at tearing of 3À5 to 4À0%, and a tensile strength (at 25 C. and at 65% relative humidity) of 25 to 50 kg./cm. when applied to a panel, the faced panel having an elastic modulus considered in the direction of the extruded length in the range 4500 to 10,000 kg. /cm.<SP>2</SP>. The second layer of paper may be of kraft or parchment paper and the plastics material may be polyethylene, an exemplified facing consisting of a layer of kraft paper, a layer of polyethylene, a layer of kraft paper, a layer of polyethylene and a layer of parchment paper. In a preferred embodiment the panel comprises a plurality of tubes which may have open or closed ends. The examples describe the production of double-faced panels, bonding of the facings to the panels being effected using a filled urea-formaldehyde adhesive in a heated press. When the outer layer of the facing is a parchment paper, it may be opaque and tinted; alternatively it may be transparent and printed on the surface thereof facing the panel.
Patent GB-493236-A (GB)
Title: Improvements in or relating to cellulose derivative compositions
IPC: C08K5/12
Filed: 1937-11-10
Abstract: Compositions, e.g. moulding compositions, contain a cellulose derivative and a carboxylic acid ester in which at least one ester group is a ketonyl group.  Examples of such esters are butyl acetonyl phthalate and other esters of di- or poly-carboxylic acids in which one ester group is a ketonyl group and the other group or groups are groups derived from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, secondary butyl, normal amyl or secondary amyl alcohols, or from glycols or polyglycols or their partial ethers or esters, or from phenols or aromatic alcohols, e.g. phenoxyethyl, phenyl, cresyl, xylenyl and benzyl groups. The di- or poly-carboxylic acid may be phthalic, malonic, succinic, oxalic, tartaric, citric or trimesic acid.  Examples of ketonyl groups are those derived from acetone, diethyl ketone and methyl ethyl ketone.  Esters of diacetone alcohol also are included.  Other ketonyl esters are those derived from benzoic, naphthenic, propionic, butyric, lactic, hydroxy butyric, and stearic acids.  The composition may be employed in the manufacture of sheets, rods, tubes, blocks, artificial filaments and films.
Patent GB-455533-A (GB)
Title: Means for preserving, waterproofing, and fireproofing stone, brick, wood and like work
IPC: B27K3/15
Filed: 1935-11-08
Abstract: A composition for preserving, waterproofing, and fireproofing stone, brick, wood, and like work, or for marine anti-fouling purposes, is prepared by mixing together creamed rubber latex, waterglass, camphor dissolved in a cellulose ester, ammonia, warm milk, cold milk, and dried milk.  The cellulose ester may have been thinned to a lacquer consistency by the addition of amyl acetate.  The composition may be applied for example by brushing or spraying.  According to the Provisional Specification, the dried milk may be replaced by albumen.
Patent GB-935874-A (GB)
Title: Improvements in draught excluding strips, beadings, mouldings or the like
Inventor: BRIGHT ROBERT GRANVILLE
IPC: B60J10/00
Filed: 1961-08-29
Abstract: 935,874. Draught excluders; mouldings. BRIGHT MANUFACTURING CO. Ltd. Aug. 29, 1961, No. 31037/61. Classes 20 (3) and 20 (4). [Also in Group XXV] A draught excluding strip, beading or moulding comprises a resilient channel-section strip 2 of rubber, synthetic rubber or synthetic resin retained in position astride a supporting flange 1 by one or more internal clips 3 of inverted U-shape (see Group XXV) and having a pair of internal limbs 7 which engage between the supporting flange and the limbs 5 of the clip and a pair of oppositely directed internal recesses 8 which house tongues 6 projecting outwardly from the upper end of the clip. The clip 3 has inwardly-pressed tongs 4 which perforate the limbs 7 and frictionally grip the supporting flange 1.
Patent GB-507533-A (GB)
Title: Improvements in or relating to internal combustion engines using dust fuel
IPC: F02B45/02
Filed: 1938-10-27
Abstract: 507,533. Powdered - fuel engines. HANNOVERSCHE MASCHINENBAU-AKT. GES. VORM. G. EGESTORFF (HANOMAG). Oct. 27, 1938, No. 31051. Convention date, Jan. 10. [Class 7 (ii)] A'mixture of powdered fuel and air is drawn from a mixing chamber A and injected into the combustion chamber during or at the end of the compression stroke by compressed air supplied through a passage N or an ejector and valves G and F. The valve G is in the form of a sleeve embracing the spindle D of the valve F and is opened by a bell-crank lever I against the action of a spring L. The valve F is kept closed by a spring S until the valve G is partly opened and engages a collar R on the spindle D and opens the valve F. In a modification, the valves G and F are on a single spindle and are opened by the air pressure on a collar at the inlet side of the valve G. In a further modification, an ejector may be used to supply the powdered fuel from the mixing chamber to the space between the valves F and G and the valves F and G are. opened by compressed air which blows the fuel into the combustion chamber.
Patent GB-485102-A (GB)
Title: Improvements in variable-pitch airscrews for aircraft
IPC: F16C25/08
Filed: 1936-11-13
Abstract: 485,102. Variable - pitch screw propellors. EVANS, A. F., and WELLS, R. G. Nov. 13, 1936, No. 31074. [Class 114] Each blade root of a variable-pitch air screw has an external projection carrying a roller thrust bearing, and between this and an internal projection on the hub socket is disposed a compression spring or like resilient load carrier. Blade 10 has at its root a sleeve 11 and formed integrally therewith is a projection 14 carrying one race 15 of the conical rollers 16, the other race 17 being held by the internal collar 18 through the intermediary of spring washers 29, 30. The sleeve 11 has also another flange 21 near its root which supports the race 22 of the conical rollers 23, the other race 24 being held by the flange of a sleeve 25. The axes of the conical rollers 16, 23 make angles of 60‹ and 45‹ respectively with and meet at a common point P on the axis XX. Between a ring 30 and a collar 18 is provided a metal plate 31 curved so as to enclose the rubber packing washer 32 which engages a cylindrical portion of the sleeve 11 in an oil-tight manner. Large cavities in the assembly are filled in with cork blocks 33 held in place by wire 34 and a cork ring 35 is inserted beneath the rubber packing ring 32. Specification 480,747 is referred to.
Patent GB-1497034-A (GB)
Title: Water-soluble coating composition
IPC: C09D121/00
Filed: 1974-10-28
Abstract: 1497034 Coating compositions based on modified butadiene polymers NIPPON OIL CO Ltd 28 Oct 1974 [1 Nov 1973] 31170/77 Divided out of 1497032 Addition to 1460454 Heading C3P Water-soluble or water-dispersible coating compositions comprise (1) an adduct of (a) a butadiene polymer of M.W. 200-10,000 which is either a homopolymer or a copolymer with another conjugated diene or a vinyl aromatic monomer and (b) an α,#-ethylenically unsaturated dicarboxylic acid compound, said adduct having been prepared in the presence of an N-nitrosamine, see parent Specification, (2) a hydrophilic solvent, and (3) a neutralizing agent. In examples, the components are (1) polybutadiene/maleic anhydride adduct prepared in the presence of N-nitrosodiphenylamine or N-nitrosodiethylamine, (2) ethylene glycol monobutyl ether, and (3) triethylamine.
Patent GB-217145-A (GB)
Title: Improvements in door closers and checks
IPC: E05F3/06
Filed: 1923-12-13
Abstract: 217,145. Nettlefold & Sons, Ltd., and Ely, C. A. Dec. 13, 1923. Operating doors by springs; checks.-A combined spring and check for doors opening in either direction has the closing spring g attached respectively to upper and lower driven members e, f with an intermediate driving member d secured to the spindle m, the members d, e, f and spring forming when assembled a wound-up spring-drum detachable unit to be applied to the spring chamber a and operating spindle m. The member d is formed with an axial sleeve d<2> to form bearings for the members e, f, which are secured in position by split rings i, j, as shown. The member d is also formed with driving teeth d', d<4> for engaging the driven teeth e<3>, f<3> on the members e, f, the opposite ends of the spring g being attached to the driven members e<4>, f<4>. Suitable stops are provided on the casing for permitting the spring drum when assembled to act as a closing device for a door opening in either direction, the arrangement of parts being such that the driving member holds the torsioned spring in equilibrium with the door in the closed position. The drum surface formed by the members d. e, f is a little larger than that of the mandrel upon which the coiled spring was formed. Each end of the drum is formed with an enlarging cam-shaped piece on a part of its periphery adjacent to where the spring is hooked to the drum.
Patent GB-465396-A (GB)
Title: Improvements in and relating to folding and sliding doors
IPC: E06B3/48
Filed: 1936-11-16
Abstract: 465,396. Door -operating mechanism. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., LEONARD, J. W., and BOWIE, J. Nov. 16, 1936, No. 31311. [Class 65 (i)] A large folding or sliding door is operated by cables attached to the end post of the door and passing in opposite directions over pulleys at the corners of the door frame to and from a winding drum driven by a power device mounted at one side of the door opening. In the form shown, applied to double doors 5, 6, cables 3, 4 pass in opposite directions round the winding drum 2 and are attached at opposite ends to the end posts of the two doors, while cables 3<1>, 4<1> pass in the opposite directions to the cables 3, 4 and connect the two doors for operation together. All the cables are adjustably attached to the doors at their lower ends. In a modification for a single door, cables 3, 3<1> are joined at the bottom, and 4, 4<1> at the top, instead of being connected to the door 6, one end of cable 3 being carried over a pulley on the end of door 5 down to a conveniently accessible adjustable attachment. Specifications 132,617 [Class 65 (i)], and 462,868, are referred to.
Patent GB-543836-A (GB)
Title: Improvements in ambulance stretchers
IPC: A61G1/013
Filed: 1939-12-04
Abstract: 543,836. Stretchers. GOVER, W. C., and MACLEAN, A. A. Dec. 4, 1939, No. 31367. [Class 108 (i)] The legs 7 of an ambulance stretcher are of channel section and are pivoted at 13 to the side bars 5 of the stretcher so that they may be turned up into recesses 15 in the bars as shown in Fig. 5 so as to form handles with the ends of the bars. The legs are of aluminium or other light metal and are locked in either position by a catch 14. The pair of side bars are connected together near each end by jointed stays which hold them apart in position for use and which enables them to be brought together side by side when the stretcher is not in use. Each stay comprises a pair of links pivoted together, one link being extended beyond the pivot and having a slot for engagement with a pin on the other link when the links are in alignment.
Patent GB-479970-A (GB)
Title: Improvements in or relating to the sensitisation of photographic silver halide emulsions
IPC: G03C1/12
Filed: 1936-11-16
Abstract: 5-Anilidomethylene-3-ethylrhodanine is prepared by reaction of 3-ethylrhodanine with diphenylformanidine in presence of kerosene. Acetylation of the product in presence of triethylamine gives 5-acetanilidomethylene-3-ethylrhodanine. 5-Acetanilidomethylene-3-phenylrhodanine is similarly prepared from 3-phenylrhodanine.  5-Anilidomethylene-3-ethyl-2-thio-2 : 4(3 : 5)-oxazoledione is prepared similarly from 3-ethyl-2 - thio - 2 : 4(3 : 5) - oxazoledione.  The acetyl derivative is similarly prepared. Specification 366,964 is referred to.
Patent GB-1008904-A (GB)
Title: Improvements in or relating to foundry boxes
IPC: B22C21/14
Filed: 1963-08-09
Abstract: 1,008,904. Flasks. N. ROBINSON. July 29, 1964 [Aug. 9, 1963], No. 31456/63. Heading B3F. A mould box or part has sand retaining devices 24 which pass through bores in the box wall to protrude into the interior thereof and which may be withdrawn. The members may comprise tapered plugs.
Patent GB-231925-A (GB)
Title: Improvements in and relating to captive bolt or like projectile devices
IPC: A22B3/02
Filed: 1923-12-14
Abstract: 231,925. Temple, R., and Temple Cox Research Co. Ltd. Dec. 14, 1923. Breech actions, movable-barrel other than drop-down; barrels.-A gun for pro. jecting a captive bolt and having muzzle opening of less diameter than the barrel bore, has a guideway for supporting the moving bolt out of contact with the barrel. The slaughtering piston shown comprises a body part a, a removable barrel b adapted to be secured by a screw 5 and a captive bolt comprising a cylindrical part 13<b>, a conical front part 13<c>, and a rear flange 13<a>. The bolt 13 is frictionally held in the rear position by a conical surface on the flange 13<a> engaging a corresponding surface in a fixed ring 8. The bolt is guided by three rods 7-7<b>, Figs. 1 and 2, passing through holes in the flange and engaging the cylindrical part 13<b> of the bolt. One of the rods 7 is slidably mounted and carries an extractor 12, which is operated by pressing on the projecting front end 7<c> of the rod, the barrel having been removed for this purpose. A projection 14 and flange 15 are provided on the body for resetting the bolt and operating the extractor respectively. A buffer 6b is provided in the barrel. The firing mechanism includes a sliding. spring-pressed rod adapted to be pressed in by a push-piece a<7> and to be held by a trigger a<2> or sear. The pistol may be mounted on a pole or long stock, in which case the sear is operated by a wire. The captive bolt is bored at the rear to fit over a tubular cartridge chamber which is considerably longer than the cartridge. The space in front of the cartridge forms a primary combustion chamber, and the space 10<a> in the bolt a secondary combustion chamber of increased cross-sectional area. The front wall of the boring in the bolt is preferably conical. The cartridge used has a loosely packed charge maintained in place by a wad.
Patent GB-863792-A (GB)
Title: Acyl derivatives of esters of citric acid
IPC: B01D15/04
Filed: 1957-10-08
Abstract: Acyl derivatives of triallyl citrate having the formula: <FORM:0863792/IV (b)/1> wherein R is an alkyl, aryl, alkaryl or aralkyl group, and R1 is an allyl radical, are prepared by the action of the requisite acid anhydride or acid chloride on triallyl citrate. In Example 1, triallyl citrate is stirred with acetic anhydride in the presence of a catalytic amount of sulphuric acid.  At the end of about an hour, heat is applied and the reaction mixture is stirred at 50-60 DEG C. for a few minutes.  It is then poured into an excess of cold water; and the upper oil layer is separated from the lower aqueous layer.  The latter is made alkaline with sodium bicarbonate, and extracted with benzene.  The benzene extracts are added to the oil layer.  The resultant oil is washed with water, then with dilute sodium carbonate solution, and finally with water again.  The neutral oil is dried over sodium sulphate; and then the benzene is removed by stripping.  The resultant acetyl triallyl citrate is finally distilled at a pressure of 0,2 mm. Example 2 indicates the preparation of propionyl triallyl citrate. Example 3 indicates the preparation of n-butyryl triallyl citrate.  Example 4 describes the preparation of pelargonyl triallyl citrate by the action of pelargonic acid anhydride on the tri-ester.  Examples 5, 6 and 7 indicate the preparation of the lauroyl-, benzoyl-, and phenylacetyl derivatives of triallyl citrate respectively.  Specification 863,793 is referred to.
Patent GB-323843-A (GB)
Title: Improvements in or relating to liquid-proof cartons
IPC: B65D3/14
Filed: 1928-10-30
Abstract: 323,843. Crossby, W. E. J., and Hilleary, I. R. Oct. 30, 1928. Non - metallic hollowware; bottoms.-A liquid-tight carton of waterproofed paper &c., of conical or cylindrical shape, closed at one end, has the other or wider end sealed by the application thereto of a cap comprising a disc portion and a flange which extends both above and below the plane of the disc, the open end of the carton being turned or folded down over the cap flange to form a reinforced supporting rim for the container when filled and reversed. Fig. 2 shows a cap comprising two flanged discs A, B, arranged back to back, supported on a shoulder C<1> of a carton the end C<2> of which is folded over the flange of the outer disc as shown on the left-hand side of the Figure. Fig. 3 shows a similar construction in which the shoulder is replaced by an indentation D', and Fig. 4 a form in which a reinforcing disc E is interposed between the flanged discs, the flange of the outer disc being in this form made deeper and folded over together with the end of the carton to form the rim. Fig. 6. shows a construction where a single disc G with a flange G<1>, G<2>, doubled on itself, is employed.
Patent GB-427004-A (GB)
Title: Improvements in and relating to electric battery lanterns
IPC: F21V23/00
Filed: 1934-11-02
Abstract: 427,004. Snap-action switches for battery lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, TURNER, H. C., and DAVENPORT, A., c/o Salford Electrical Instruments, Ltd., Silk Street, Salford, Lancashire. Nov. 2, 1934, No. 31508. [Class 38 (v)] [See also Group XI] An electric cycle lamp has a metal casing 1 provided with a removable lid 3 to which is riveted a leaf spring 14. A spring terminal 10 of the battery 8 normally rests against an insulating member 12 carried by the lid. An operating member 15 sliding in a collar 16 carries a contact piece 17. In the off position shown, the spring 14 biasses the contact 17 to the right. On pushing the knob 18 to the left, the contact 17 slips past the curve of spring 14 and is then moved rapidly to the left to complete the circuit between terminal 10 and spring 14.
Patent GB-800155-A (GB)
Title: Improvements relating to apparatus for facilitating the examination of women's stockings and the like
Inventor: HARTSHORN CYRIL
IPC: D06H3/16
Filed: 1955-11-04
Abstract: 800,155. Belt conveyers. FABRI-TUBES, Ltd. Jan. 24, 1957 [Nov. 4, 1955], No. 31526/55. Class 78 (1). [Also in Group VIII] In a machine for facilitating the examination of women's stockings the stockings are carried on an endless belt past lighting means for illuminating the stockings. As shown, a belt 22 of transparent plastic material is attached by press-studs 21 to cross-bars 19 extending between a pair of driving-chains 16. The crossbars 19 are secured to brackets 18 on the chains by studs 20, the head portions of which are shaped to receive the press-studs 21. The lighting means is positioned below the transparent belt so that the stockings are viewed by transmitted light. The machine may be modified for viewing stockings by reflected light by providing members 21a on the belt 22 for receiving press-studs 26 on a black plastic belt 25 which is placed over the belt 22.
Patent GB-306588-A (GB)
Title: An improved method of producing a cast-line of japanese type and an improved composite slug therefor
IPC: B41B11/52
Filed: 1927-11-23
Abstract: 306,588. Wade, H., (Standard Compositor Akt.-Ges.). Nov. 23, 1927. No Patent granted (Sealing fee not paid). Type-bars.-A composite type-bar for Japanese print, which consists of Chinese word signs or ideographs associated with Japanese explicative syllable signs, is produced by setting up a line of mixed matrices bearing Chinese ideographs i and Japanese syllable signs h respectively, and casting a type-bar a therefrom, and then setting up a line of matrices bearing Japanese syllable signs k only, each of which is so located in the line as to correspond in position with the ideograph that it qualifies. A second type-bar b is cast from these matrices, and the two type-bars are assembled side by side. The two type-bars are cast in the same mould, the bar a being cast with an overhanging portion to fit within a recess in the upper face of the bar b.
Patent GB-744802-A (GB)
Title: Improvements in fishplates for permanent way rails
IPC: E01B11/16
Filed: 1953-11-13
Abstract: 744,802. Rail fish-plates. WILLIAMS, Ltd., H., and WILLIAMS, O. R. Oct. 22, 1954 [Nov. 13, 1953; April 30, 1954], Nos. 31570/53 and 12646/54. Class 104 (2). A fish-plate joining rails 11, 12 of different sections or a new rail to a worn rail has the part 17b of the fish-plate which fits the smaller section or worn rail increased in depth by a flange or skirt 18 depending from the lower side thereof. The skirt 18 extends downwards to the level of the lower edge of the part 17a of the fish-plate 17 which fits the larger or new rail 11. The fish-plate 17 is strengthened by a shoulder 19 at the junction of the rail ends.
Patent GB-1535721-A (GB)
Title: Television systems
IPC: H04N9/78
Filed: 1975-12-01
Abstract: 1535721 Television systems INDEPENDENT BROADCASTING AUTHORITY 1 Dec 1975 [31 Aug 1974] 31611/74 Heading H4F A digital video signal consisting of digital samples at intervals t is processed to provide a signal substantially free from the luminance component, or alternatively from the chrominance component, by an arrangement which includes a delay unit comprising a number of delays. At each interval t the delay unit provides simultaneously those samples which correspond to a rectangular array of picture points, the height of the array extending over at least two successive lines of the image represented by the video signal. These samples are weighted in multipliers and the weighted samples are summed. The weighting applied is such that, in the case of an array of points of uniform luminance, the chrominance component of the sum of the weighted samples is zero. Alternatively, in the case of an array of uniform chrominance, the weighting is such that the luminance component of the sum is zero. The delay unit may comprise 14 delays (Fig. 2a, not shown) to provide 15 simultaneous samples corresponding to an array 5 points wide by 3 lines high. The weighting values applied to the array are preferably symmetrical about the centre column and row of the array (e.g. as in Table 1 or Table 2, not shown), and the respective sums of the values in the other rows and columns are zero. If the array of weighting values is symmetrical some of the delays in the delay unit may be omitted, Fig. 2b (not shown). If the array of weighting values for extraction of the luminance component differs from that for the chrominance component respective multiplying and summing circuits must be used. However, if the arrays are the same, except for the centre value, a single such circuit may be used, the circuit being modified by the addition of a further multiplier and a subtractor to provide the components on respective outputs, Fig. 8 (not shown). Since the array of picture points may not have uniform chrominance or luminance the extracted components may not be entirely free of the other component, but the effect is stated to be of no significance. As disclosed the chrominance component is fed to I and Q demodulators whose outputs, together with components of the luminance component on three 120 degree axes, are time divisional multiplexed, Figs. 1 and 7 (not shown). The multiplexed signal may be added to another such signal to form a composite picture signal, or to signals derived from a set of lines of the picture via multipliers and an interpolator for the purposes of standards conversion.