baber/WOPTO huggingface dataset:
Patent GB-1087879-A (GB)
Title: Adducts of sulfonylchlorides
IPC: C07C315/00
Filed: 1964-10-16
Abstract: 1:1 Adducts and low telomers (2 or 3 olefin units) are prepared from substituted or unsubstituted alkenes, alkadienes, aromatic mono-olefins or aromatic diolefins and aliphatic, aromatic or heterocyclic unsubstituted or substituted mono- or disulphonyl chlorides by reacting them in the presence of 0.1-10 mole per cent, based on the sulphonyl chloride, of a chlorine transfer agent which is a compound of copper or iron in either valency state; if a ferric compound is used a reducing agent must be present, e.g. benzoin, di-t-butyl-methyl-phenol, hydroquinone or naphthol.  Specified copper and iron compounds are FeCl2, FeCl3, ferric acetylacetonate, CuCl, CuCl2 and cupric acetylacetonate.  Solvents may be used.  The preferred reaction temperature is 50-200 DEG  C.  The invention also comprises the compounds of formula (a) R[SO2CH2CR1.CR11R111Cl]n, (b) R[SO2CH2CR1:CR11.CH2Cl]n and (c) [RSO2CHR1.CR11Cl]nR111, wher n is 1 or 2, and in formula (a) when n is 1, R is alkyl, substituted alkyl, aryl, substituted aryl or heterocyclic, R1 is hydrogen or alkyl, and R11 and R111 are each hydrogen, alkyl, substituted alkyl, halogen, cyano, carboalkoxy, acyloxy, aryl, or substituted aryl, or R and R11 or R11 and R111 form a ring; with the exception of compounds in which (i) R is alkyl, substituted alkyl, aryl or substituted aryl and R1, R11 and R111 are hydrogen; (ii) R is alkyl, aryl or substituted aryl, R1 and R11 are hydrogen, and R111 is CN, carbomethoxy, phenyl or n-hexyl; and (iii) R is p-chlorophenyl, R1 is hydrogen, and R11 and R111 are hydrogen or alkyl; in formula (a) when n is 2, R is a bivalent aliphatic or aromatic radical and R1, R11 and R111 are as defined above, with the exception of compounds in which R is ethylene or phenylene and R1, R11 and R111 are hydrogen; in formula (b) when n is 1, R is as for formula (a) with n = 1 and R1 and R11 are each hydrogen, halogen or alkyl; and when n is 2 R is a bivalent aliphatic or aromatic radical and R1 and R11 are each hydrogen, halogen or alkyl; and in formula (c) [which is identical with (a) when n = 1] when n is 2 R is as for formula (a) when n is 1, R1 is hydrogen or alkyl, R11 is hydrogen, halogen or alkyl, and R111 is a bivalent aliphatic or aromatic radical.  Examples are given.
Patent GB-1315885-A (GB)
Title: Keyboards
IPC: H03K17/972
Filed: 1971-09-13
Abstract: 1315885 Keyboards HEWLETT-PACKARD CO 13 Sept 1971 [24 Sept 1970] 42591/71 Heading G4H [Also in Division H3] A non-contacting keyboard comprises an array of transformers, each having a primary and a secondary, the primaries being seriesconnected in one or more groups, and the secondaries also being series-connected in one or more groups, signals being applied to the groups of primary windings, the magnitude and polarity of the mutual inductance between the primary windings in a group and the corresponding secondary windings being selected for cancellation of induced signals in the secondary windings, actuation of a key moving magnetic-flux - changing-means relative to a respective one of the transformers, comparator means detecting the resulting change in mutual inductance to identify which of a pair of keys was moved. Fig. 1 shows two keys 22, 24 of a keyboard and a group of two primaries 14, 18 energized from a pulse generator 28, the secondaries 16, 20 being oppositely wound so that the induced signals normally cancel. When one of the keys 22, 24 is depressed, a respective flux changing means 26 causes an imbalance and a positive pulse is passed by amplifier 30 or 32 in a comparator 48 to set or reset flip-flop 36 according to which key was depressed. The flux-changing means 26 may be a ferrite rod or core, or a brass disc or washer. In a first embodiment (Fig. 3, not shown), there are 8 pairs of keys, the earthing shown at the top right of Fig. 1 being done for the 8 pairs in turn by a counter driven by the pulse generator via a delay, this driving being inhibited if either of the amplifiers 30, 32 produces an output. All the secondaries are in the same wire loop as suggested by the dashed connections in Fig. 1. The key depressed is identified by the count (on 3 leads) and the state of the flip-flop 36 at 38. A second embodiment (Fig. 4, not shown) has two (or more) pairs of primaries per group, there being a number of comparators equal to the number of pairs per group. A third embodiment (Fig. 5, not shown) uses the pulse generator to drive a flip-flop which drives a counter, the counter and flip-flop selecting a pair of primaries by co-ordinate selection, the state of the flip-flop also forming part of the output identifying the key depressed. More than one flip-flop may be used. A fourth embodiment (Fig. 6, not shown) uses a counter to select pairs of keys in turn, and when either of amplifiers 30, 32 in the (single) comparator produces an output the count and the state of the flip-flop 36 are entered into a buffer store, and the information entered is compared with the information already there and if they are equal (i.e. if the same key is depressed during two successive cycles of the counter) a "keydown" signal is produced.
Patent GB-1207016-A (GB)
Title: Improvements in or relating to plate heat exchangers
Inventor: SLATER DEREK
IPC: F28F3/08
Filed: 1968-09-06
Abstract: 1,207,016. Plate heat exchangers. A.P.V. CO. Ltd. 3 Sept., 1969 [6 Sept., 1968], No. 42606/68. Heading F4S. A heat exchanger plate 1 having an unperforated port zone 7 surrounded by recesses 3 and 5 carrying gasket portions 4 and 6 includes a supporting and reinforcing element 8 secured to the plate in the unperforated port zone 7. The reinforcing element has a flat zone coplanar with the base of the gasket recesses 3 and 5. The plate is for use in a stack wherein the majority of plates have the zone 7 inside the gaskets 4 and 6 removed to form a through port. As shown the reinforcing element 8 comprises a disc of metal welded to the plate. Alternatively the element may be in the form of a ring (9, Figs. 3, 4) held in place by a retainer (10) attached, e.g. by welding, to the plate. The ring may be stepped (see Figs. 5, 6). In another arrangement (Figs. 7, 8) the retainer is so constructed that the reinforcing disc or ring can be removed for inspection or cleaning purposes.
Patent GB-1181940-A (GB)
Title: Welding Electrode for Hard Surfacing of Steel Parts
Inventor: FRUMIN ISIDOR ILICH
IPC: B23K35/30
Filed: 1968-09-11
Abstract: 1,181,940. Welding by fusion. INSTITUT ELEKTROSVARKI IMENI E.O. PATONA. 11 Sept., 1968, No. 43188/68. Heading B3R. Also in Division C7] A welding electrode for hard surfacing steel parts consists of a low carbon steel tube cored with a mixture containing ferrochrome, ferromolybdenum, ferrovanadium, ferrosilicon, ferromanganese, chromium metal, sodium silicofluoride and iron powder. Gas shielded or submerged arc welding is used. A core constituting 33-37% by weight of the electrode is composed of:- The electrode when used with the following submerged arc welding flux:- produced the following weld deposit:- The weld had a bainite structure. The steel workpiece was preheated to 350-380‹ C.
Patent GB-1390719-A (GB)
Title: Process for the preparation of polyether amines
IPC: C08G65/08
Filed: 1973-09-14
Abstract: 1390719 Secondary polyether amines BAYER AG 14 Sept 1973 [16 Sept 1972] 43234/73 Heading C2C [Also in Division C3] Secondary polyether amines of the formula wherein A 1  and A 2 , which may be the same or different, are groups of the formula R 1 , R 2 , R 3  and R 4 , which may be the same or different are hydrogen, alkyl, or aryl; m is 1 to 100 and n is zero or 1 to 100, are prepared by reacting an oxazolidine of the formula wherein R 5  and R 6 ; which may be the same or different, are hydrogen, alkyl, aryl, or together with the C-atom a 5- or 6-membered cycloalkane ring, with an alkylene oxide of the formula
Patent GB-1105876-A (GB)
Title: Improvements in the waving of hair
IPC: A45D7/04
Filed: 1965-10-13
Abstract: Non-uniformly porous hair is uniformly waved with a cold hair waving composition by pretreating the hair with a preneutralizing agent capable, through chemical actions of partially arresting the action of the hair waving composition and subsequently treating it with the cold hair waving composition.  The nonuniformly porous hair may have been produced by previously bleaching hair with a composition comprising for example oleic acid, the glycol ether of p.ter octylphenol, octylphenoxy polyethoxyethanol, ammonia, isopropanol, propylene glycol, aqueous hydrogen peroxide, ammonium and potassium persulphates, and sodium silicate and carbonate, or by previously tinting with an oxidation dye composition comprising p-phenylenediamine, 1,5-dihydroxy-naphthalene, p-aminodiphenylamine and aqueous hydrogen peroxide.  The preneutralizing agent may act (a) by changing the pH to the acid side, (b) by oxidation of the active component of the waving composition, or (c) by a combination of (a) and (b) and may be hydrogen peroxide or alkali metal perborate or chlorite, urea peroxide, ammonium or potassium persulphate or sodium or potassium bromate.  The pre-neutralizing agent may also contain wetting agents, thickeners, opacifiers, perfume oils, preservatives, stabilizers, film formers and hair conditions.  The waving composition is preferably a solution of thioglycollic acid or its derivatives, e.g. amides and esters, having a pH of 7-9.4 and may contain alkali, e.g. ammonia, alkali or alkaline earth metal cations, ethylamine, diethylamine, triethylamine, monoethanolamine, diisoprapanolamine, triethanolamine or morpholine, opacifiers, emulsifiers, perfumes, thickening agents, film formers and hair conditions.  After treatment with the hair waving composition the hair may be treated with a neutralizing agent.
Patent GB-978551-A (GB)
Title: System for the removal of the line structure of television pictures and method of making the same
IPC: H04N5/72
Filed: 1960-12-21
Abstract: 978,551. Television. SABA SCHWARZWALDER APPARATE - BAU ANSTALT AUGUST SCHWER SOHNE G.m.b.H. Dec. 21, 1960 [Dec. 21, 1959; March 31, 1960; Sept. 3, 1960; Oct. 12, 1960], No. 43942/60. Drawings to Specification. Heading H4F. [Also in Divisions G2 and H1] An optical device for eliminating the line structure of a television picture raster produced by a cathode-ray tube comprises a transparent member disposed between the view and fluorescent screen of the tube and formed with a plurality of grooves extending parallel to the line structure and spaced closer than the spacing between raster lines, the grooves being arranged that each spot of the picture is magnified so that the luminous densities of adjacent raster lines as magnified overlap. The device may be: (1) a separate plate adhered to the front face of the cathode-ray tube, e.g. by " Canada balsam," (2) a plate also functioning as a protective plate which is mounted in front of the cathode-ray tube, (3) the front face of the cathode-ray tube itself, or (4) in the form of spectacles to be worn by the viewer. Reference is made to the use of colour additives to improve contrast. Where the device is used close to the fluorescent screen, the grooves are given a spacing of <SP>1</SP>/ 5 -<SP>1</SP>/ 20  of the raster line spacing and a depth of about <SP>1</SP>/ 10  of the spacing. Grooves of <SP>1</SP>/ 10  mm. spacing are mentioned in connection with a device for use with 17-inch- 24-inch cathode-ray tubes. The device may be formed of glass or plastic. The device may also be formed with grooves extending transverse the line direction so as to form a " lattice " plate, the vertical grooves having a depth different from that of the horizontal grooves. It is stated that the grooves may be of any configuration, description being given of arrangements formed with cylindrical surfaces, parabolic surfaces and sinusoidal surfaces composed of one, two or three sine waves of a different wavelength. The surfaces may also be given a random characteristic by cutting the grooves with sandpaper or by a tool controlled to effect variable depth and/or lateral position modulation of parabolic grooves in response to a noise signal. The device may be formed so that the grooved surface is formed at the boundary between two materials of different refractive index. In order to manufacture such a device, one material is selected to have a higher softening point than the other and is used as master pattern on which the other material is pressed or cast. Such arrangements are referred so in connection with spectacles. Specifications 744,648 and 886,439 are referred to.
Patent GB-1293520-A (GB)
Title: Stethoscope
IPC: A61B7/02
Filed: 1971-09-22
Abstract: 1293520 Stethoscopes AVID CORP 22 Sept 1971 [13 Nov 1970] 44123/71 Heading A5R A stethoscope comprises two flexible sound tubes 29 which are led from ear pieces 30 through two rigid, pivoted tubular arms 10, 11 and leave said arms via openings 21 adjacent end walls 17 of the arms, the pivot being formed from overlapping sections 22 integral with each arm 10, 11, said sections 22 projecting from the end walls 17 and having aligned holes (23), Fig. 5 (not shown) through which a pivot member 26 passes; releasable means for holding the arms 10, 11 in a selected position being associated with said overlapping sections 22, and the arms 10, 11 being curved in two places (14), (16), Fig. 1 (not shown) to define main portions (12), first leg portions (13) adjacent the ear pieces 30, and second leg portions (15) adjacent the pivot. The curvature at (14) is greater than that at (16), but in both places is not so great as to cause distortion of the sound tubes 29. The pivot member 26 is preferably a hollow rivet. The releasable holding means preferably comprises interengaging ribs (25), Fig. 5 (not shown) formed on the contacting faces (24) of the overlapping sections 22 radially to the holes (23). Relative movement of the two arms 10, 11 may be limited by a projection (31), Fig. 6 (not shown) on one section 22. The arms 10, 11 are preferably of plastics material and the sound tubes 29 are preferably of rubber.
Patent GB-1410107-A (GB)
Title: Process for manufacturing an electroconductive polyolefin  material
IPC: C08K7/00
Filed: 1973-09-20
Abstract: 1410107 Electroconductive plastics laminates MITSUBISHI SEISHI KK 20 Sept 1973 [6 Oct 1972] 44203/73 Heading B5N [Also in Divisions D2 and H5] Laminates include an electroconductive polyolefin sheet material which is made by preparing a slurry of polyolefin fibres and carbon fibres, forming a sheet from the slurry by papermaking techniques, and subjecting the formed sheet to a temperature above the melting point of the polyolefin fibres, or where a mixture of polyolefins is used to a temperature above the melting point of the polyolefin with the highest melting point. The polyolefin may be polyethylene or polypropylene. The polyolefin fibres may include an incompatible thermoplastic resin. Natural fibres, e.g. woodpulp and synthetic fibres, e.g. polyvinylalcohol, nylon may be incorporated in the slurry. Heating of the formed sheet may be carried out whilst subjecting it to pressure. Two or more sheets may be laminated together by heat and pressure. In addition, insulating theremoplastic films, e.g. polyolefin film may be laminated to the outer surfaces of the electroconductive sheets during the manufacture of a resistance heater (see Division H5).
Patent GB-1361805-A (GB)
Title: Flat structures made of metal planks
IPC: F16B12/44
Filed: 1971-09-22
Abstract: 1361805 Building panels SWISS ALUMINIUM Ltd 22 Sept 1971 [23 Sept 1970] 44245/71 Heading E1B . A flat structure is made up from metal planks 1, 2 (e.g. of extruded light metal) assembled edge to edge and restrained against movement perpendicular to the plane of the structure by boundary strips. The edges of the planks interlock by longitudinal slot-and-tongue and at least one such slot and cooperating tongue each have two flat surfaces for engaging the other and all these surfaces are parallel to each other and arranged at an angle of 10 to 80 to the plane of the structure. The embodiments described are shown in the Figures.
Patent GB-1135860-A (GB)
Title: Improvements in devices for feeding a fluid product into packing containers
IPC: B65B3/26
Filed: 1966-10-04
Abstract: 1,135,860. Bottling, &c. J. G. H. OLLIER, G. F. GROSSHANS, and R. G. MASSON. 4 Oct., 1966 [8 Oct., 1965], No. 44311/66. Heading B8T. A valve head 69 is of hollow cylindrical construction so that as it slides downwards along a fixed piston rod 54 from its open position, Fig. 2, to its closed position, Fig. 3, when it shuts a hole 52 in a bottle, &c. filling nozzle 25, drops of liquid, &c. in the hole 52 are sucked into the valve head for subsequent discharge. Liquid, &c., is passed to the nozzle 25 through a duct 26 and thence to the valve hole 52. The valve head 69 is biased upwards to the open position by a spring 61, and is closed by admission of compressed air through a pipe 21 to act on a ring-shaped servo piston 56 and slide the valve head downwards. Liquid, &c. is fed from a pipe (9), Fig. 1 (not shown), through a duct (12) and a resilient diaphragm valve (10) to which controlling compressed air is admitted through a pipe (16), the liquid, &c. then passing to cylinders (3) each of which feeds a filling nozzle (25) as described.
Patent GB-944138-A (GB)
Title: Improvements in or relating to brake mechanisms
IPC: F16D51/48
Filed: 1961-12-12
Abstract: 944,138. Internal shoe drum brakes. WAGNER ELECTRIC CORPORATION. Dec. 12, 1961 [Dec. 14, 1960], No. 44397/61. Heading F2E. The construction of the braking mechanism of the present invention is as that disclosed in Specification 771,950 except that the centre of curvature of curved face 40 of the anchor block 38 subtends a greater angle to the horizontal through the axis of rotation of the anchor block 38. The face 36 of brake shoe 15 thus engages the anchor block 38 above the horizontal line through its axis of rotation pivoting the anchor block 38 to effect complete retraction of brake shoe 16 from the brake drum 14.
Patent GB-1523900-A (GB)
Title: Document copying
IPC: B65H83/00
Filed: 1975-10-29
Abstract: 1523900 Feeding sheets XEROX CORP 29 Oct 1975 [26 March 1975] 44611/75 Heading B8R Documents are fed on to the platen 13 of a photocopying machine by means of a suction belt 16 which holds the documents out of contact with the platen. During document feed and simultaneous delivery of a preceding document, the end 28 of the belt is raised by a solenoid 42 above the level of a stack 24. Documents are preregistered against movable stops 52 a switch 50 sensing the leading edge, if the document is not badly skewed, to initiate the copying angle and retract the stops and close the nip of rollers 48 to feed the document against movable register stops 56 and slightly buckle it. After copying of the preceding document, the stops 56 are retracted, rollers 54 raised against the belt 16, and the belt driven sufficiently to bring the document to copying position.
Patent GB-905259-A (GB)
Title: Sealed pressure operated electric switch
IPC: H01H9/04
Filed: 1960-12-30
Abstract: 905,259. Fluid actuation of switches. BENDIX CORPORATION. Dec. 30, 1960 [Feb. 3, 1960], No. 44802/60. Class 38 (5). A pressure-operated switch comprises two adjustably spaced rigid plates 10 and 11 connected by a bellows 30, an aperture in plate 11 being closed by a diaphragm 19 carrying a stirrup-shaped contact 23 into which projects a contact 15 carried by the plate 10. A chamber C<SP>1</SP>, defined by the plates, bellows, and diaphragm acts as a reference chamber and may be evacuated or filled with an inert gas. Gas may be introduced by a pipe F to a chamber C formed between a rigid cap 21 and the diaphragm. The contacts are preferably made of platinum. The plates 10 and 11 are secured together at adjacent comers by screws 12 having weakened centre-portions and at the opposite side by a spring-loaded screw 13, adjustment of which varies the relative positions of the contacts and hence the pressure-setting of the switch. In Fig. 4 (not shown), a twoway switch has two fixed contacts, both adjustable by the bellows as above and one being adjustable in relation to the other by a similar bellows arrangement.
Patent GB-959905-A (GB)
Title: Improvements in or relating to the manufacture of shaped articles of regenerated cellulosic and like materials
Inventor: LOSTY HOWARD HAROLD WALTER
IPC: D21J3/00
Filed: 1961-12-15
Abstract: 959,905. Moulding shaped articles from dispersions of cellulosic materials. GENERAL ELECTRIC CO. Ltd. Nov. 19, 1962 [Dec. 15, 1961], No. 45021/61. Heading B5A. In a process for the production of a shaped article from a dispersion of a cellulosic material in an aqueous liquid in which the initial fibrous structure of said material is broken down and the resultant solid particles hydrated, a quantity of the dispersion is placed in a die of which at least a part of the wall is formed of material permeable to the liquid medium of the dispersion but impermeable to the dispersed material, and a pressure difference applied between the exterior of the die and the mass of dispersion within the die such that the dispersion is under a higher pressure, the liquid being extracted from the dispersion through the permeable wall of the die. In one example, a cylindrical die 1 formed of electrode graphite is closed at its base with a plug 2, 3 and filled with dry regenerated honicellulose, a short graphite plunger 4 and a longer steel plunger 5 then act upon the dispersion at a pressure of 110 1b./in.<SP>2</SP>, the length of the pressing time being dependent upon, the final concentration of pulp required. The cylindrical body of concentrated pulp (20-30% solid) is transferred to a smaller bore die and the pressing operation repeated, after which the article is dried by heating. In a further example the pulp is compressed intially in a graphite die 35, having a larger bore 36 and a smaller bore 37, by graphite plungers 39, 38 until plunger 38 reaches the inner limit of bore 36 whence plunger 38 is replaced by a steel plunger 40, 41 and pressures of 1,800, 4,500 p.s.i. applied. This produces solid rods which are dried afterwards at 80‹ C. for 24 hours. In a further example, the dispersion is placed in a graphite tube enclosed in a vacuum vessel, during which evacuation process the die is agitated. Specifications 860,342, 889,351 and 946,246 are referred to.
Patent GB-1405913-A (GB)
Title: Filtration assemblies and method of filtering
IPC: B01D29/11
Filed: 1972-09-29
Abstract: 1405913 Pressing glass; forming holes in glass MINNESOTA MINING MFG CO 29 Sept 1972 [30 Sept 1971] 45180/72 Heading C1M [Also in  Divisions B1 and B5] A filter element comprises a uniformly permeable block 1 of consolidated particulate material having two continuous opposed surfaces 2, 4 into each of which blind cavities 3, 6 extend. Suitably, the block is cylindrical and the cavities define cylindrical chambers, one set 6 being of smaller cross-section than the other set 3. The filter may be formed of sintered ceramic material or epoxy bonded glass beads. In Examples 2 and 3, resin coated glass beads are poured into a cylindrical pressing die coated with peanut oil as a release agent and pressure is applied to form a cylindrical body. The body was then heated to cure the resin and the cavities 3, 6 were formed by drilling.