baber/WOPTO huggingface dataset:
Patent GB-1153934-A (GB)
Title: Light Deflectors
IPC: G02F1/29
Filed: 1967-10-02
Abstract: 1,153,934. Light deflectors. INTERNATIONAL BUSINESS MACHINES CORP. Oct.2, 1967 [Jan. 16, 1967], No.44708/67. Heading G2J. [Also in Division H4] A light deflector for deflecting a beam containing light of two different wavelengths so that ordinary polarized light is transmitted without deviation while extraordinary light polarized is displaced, comprises a first birefringement crystal I which causes the wavelengths to be deflected by different amounts, and a second birefringement crystal I which recombines the two wavelengths. As shown Fig. 2 light of two wavelengths is passed through a Kerr cell 10 and then through the crystals; when the light is polarized in the first direction by the Kerr cell both wavelengths pass through the crystals as ordinary rays and remain colinear leaving the second crystal at the first point; when the light is polarized perpendicular to the first direction both beams travel as extraordinary rays and are recombined at the second point corresponding to a deflection b.
Patent GB-975799-A (GB)
Title: Fluid flow control valve
IPC: B60T11/32
Filed: 1962-11-28
Abstract: 975,799. Valves. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. Nov. 28, 1962 [Dec. 5, 1961], No. 44990/62. Heading F2V. A valve comprises a body having inlets 24, 26 from two pressure supplies and an outlet 14 to a system, such as a braking system. A piston valve member 28 is slidable in the body in response to the pressures at the inlet to determine which supply flows to the outlet. Two seals 34, 36 are provided in grooves 38, 40 between the outlet and each inlet to provide a seal with the piston valve and prevent leakage between the body parts to the atmosphere. The piston valve may be a differential member which ensures the supply of one fluid when both the inlet pressures are equal.
Patent GB-1370663-A (GB)
Title: Support bolster
IPC: B63B3/00
Filed: 1971-09-28
Abstract: 1370663 Gunwale, seat or buoyant attachment H TREMPECK 28 Sept 1971 [1 Oct 1970] 45084/71 Headings B7S and B7U A support bolster for a sailing boat comprises a body made from a yieldable material and mountable on the side of a boat by fastening means defining a channel to receive and grip an edge portion of the side of the boat, the fastening means being so arranged in relation to the body that, when the latter is mounted by the fastening means on the side of the boat, the body occupies a position such that it can act as a shockabsorber against impacts and also as a support cushion for an operator positioned against the side of the boat. In one embodiment, Fig. 1, a bolster comprises a body 1 retained on a washboard edge 2 by resilient clips 3 provided at each end of the body. Loops 4, 5 are provided to urge leg portions of the plastics-covered clips slightly apart to permit mounting of the bolster. In a modification, Fig. 3 (not shown), part of the body (1) is cut away to form a back-rest for a person sailing and a chain (12) attached to the body (1) is connected by a loop (13) to the boat. In another embodiment, Fig. 5, the bolster is in the form of a rotatable roll 16 mounted on a holder 17 which is provided with a spring clip 19 engageable over an edge 2. Adjustable braking devices 20 arrest or slow down the rotation of the roll 16. In a further embodiment, Fig. 8, the bolster is mounted on an edge by suction cups 22 and is provided with a loop 23 which can be passed over a human head to enable the bolster to be used as a life saving device, Fig. 10 (not shown). Preferably, the bolster is filled with a foamed material and the suction cups 22 pass through an outer plastics covering 24 and are secured to plates 25. An adhesive may be applied to the interior of the suction cups, Fig. 9 (not shown). In a still further embodiment, Fig. 11, the bolster 29 is formed as a seat and may be fitted on a tube 28 of a rubber dinghy by resilient clips 32, 33.  In yet another embodiment, Fig. 12, the bolster comprises two resilient body portions 34, 35 of which the portion 35 has a higher stiffness rating than the portion 34. In a further embodiment, Fig. 13, the bolster has a foamed plastics body 37 and a hollow portion enclosing an inflatable body 38. In another embodiment, Fig. 14, resilient clips 41 embrace the boat edge 42 and the bolster is fastened to the interior of the boat 43 by suction cups 44, 45 or fasteners provided with resilient heads sprung into complementary hollows in the side of the boat. A seat 46 for the user is provided. In any of the embodiments, the surface of the body may be covered with particles of luminous material. Also, the body may be covered by a detachable envelope provided with a zip fastener.
Patent GB-1364570-A (GB)
Title: Multi-cell precompressed structures for silos bunkers and tanks
IPC: B65D88/32
Filed: 1971-09-28
Abstract: 1364570 Multiple silos INSTITUTUL DE CERCETARI SI PROIECTARI ALIMENTARE 28 Sept 1971 45196/71 Heading B8S [Also in Division E1] A prestressed concrete structure for silos, bunkers or tanks, comprises a plurality of polygonal cells arranged around one or more central polygonal cells such that cell walls meeting in pairs at points forming external corners of the assembly lie on a circle and are joined by vertical ribs, while other cell walls meet in threes internally of the assembly and are supported by piers. The assembly is then encircled by tensioned cables, each of which extends halfway round the structure. The cables are anchored in groups on anchorages forming part of some of the vertical ribs. In the Figures, anchorages are formed on ribs marked A, the cells are regular hexagons supported by piers 5 which are housed in a basement 8 and tensioned cables 10 pre-stress the structure.
Patent GB-987020-A (GB)
Title: Humectants for cosmetics, ointments, food, cellulosic materials and other articles
IPC: A23L29/00
Filed: 1962-12-12
Abstract: The moisture retaining characteristic of cosmetics, dentifrices, hair preparations and ointments is increased by incorporating in such products a humectant which is a water-soluble hygroscopic salt of 2-pyrrolidone-5-carboxylic acid 2 - pyrrolidine - 4 - methyl - 5 - carboxylic acid, 1 - methyl - 2 - pyrrolidone - 5 - carboxylic acid, N - acetyl - glycine, N - acetyl - alanine or N - acetyl - 2 - amino - n - butyric acid, the amount of the humectant being at least 2% by weight of the total weight of the cosmetic or ointment and the humectant.  The salts are hydroscopic to the extent that the pure dry salts exhibit an increase of at least 30% by weight by absorption of moisture from the atmosphere when exposed at room temperature to air at 60% relative humidity.  Suitable salts are the sodium, potassium, ammonium and alkanolamine salts and mixtures thereof. Examples illustrate the incorporation of the humectants in a skin lotion, cream, cosmetic stick, suntan lotion and ointment base. Other products in which the humectants may be incorporated include dentifrice pastes, hair sprays, hair groom preparations, talcs, and body powders, cleansing creams, shaving creams, shaving powders and sticks, pre-shave lotions, deodorants and anti-perspirants.ALSO:The moisture retention by foods such as baked goods, fudge and chocolate candy is increased by incorporating a water-soluble hygroscopic salt of 2-pyrrolidone-5-carboxylic acid, 2-pyrrolidone-4-methyl-5-carboxylic acid, 1-methyl-2-pyrrolidone-5-carboxylic acid, N-acetyl glycine, N-acetylalanine or N-acetyl-2-amino-n-butyric acid, the amount of such humectant being at least 2% by weight.  The salts are hygroscopic to the extent that the pure dry salts exhibit an increase of at least 30% by weight at room temperature in air at 60% relative humidity.  Suitable salts are the sodium, potassium, ammonium and alkanolamine salts.
Patent GB-1442651-A (GB)
Title: Basic dyeable polyamide concentrates
IPC: C08G69/36
Filed: 1973-09-28
Abstract: 1442651 Sulphonated polyamides BAYER AG 28 Sept 1973 [28 Sept 1972] 45439/73 Heading C3R A sulphonate group-containing polyamide comprises recurrent units wherein A is H or -RSO 3 M (at least one A being the latter); R is alkylene or alkylarylene; M is alkali metal; R<SP>1</SP> is alkylene, cycloalkylene or arylene; B is alkylene or -R<SP>2</SP>-CONH-R<SP>1</SP>; R<SP>2</SP> is alkylene; and x is 0 or an integer, and has a relative viscosity of 1À1 to 3À5 (1 g./dl. in H 2 SO 4  at 25‹ C.), a M.P. of 150‹ to 300‹ C., and a sulphonate concentration of 800 to 3500 milliequivalents/kg. Such polyamides may be prepared by condensing 15 to 50 mol. per cent of each of the sulphonated diamine and phthalic acid with 0 to 70% of a sulphonate free aminoacid, lactam or salt; they may be blended in small quantities with a non-sulphonated polyamide prior to spinning to obtain fibres of improved basic dyeability. Numerous suitable reactants are specified. In specific examples polyamides are prepared from the sodium salts of 5-sulphoiaophthalic acid and of N-(deltasulphonatobutyl) hexamethylene or ethylene diamine or N-(4-sulphonatobenzyl)hexamethylene diamine and (when a further monomer is present) 66 salt or amino-caproic and/or -undecanoic acid. Some are directly spun into threads, others are blended (e.g. in amounts of 1 wt, per cent) in nylon 6 prior to spinning. Reference is made to Specification 1,258756.
Patent GB-1202737-A (GB)
Title: Process and apparatus for the manufacture of glass in sheet form
Inventor: MALICHEFF ANDRE
IPC: C03B15/02
Filed: 1967-10-05
Abstract: 1,202,737. Sheet glass manufacture. GLAVERBEL. 5 Oct., 1967 [14 Feb., 1967], No. 45523/67. Heading ClM. A process for the manufacture of sheet glass by the updrawing of a continuous ribbon from a bath of molten glass comprises imparting transverse to the ribbon a to-and-fro motion to the gases forming the atmosphere on at least one side of the ribbon in at least one portion of the drawing chamber whilst the ribbon is in vertical motion. This motion which is substantially horizontal, is imparted to the gases by means located in the desired part of the drawing chamber on both sides of the ribbon or on that side of the ribbon downstream of the direction of feed of molten glass. In one embodiment, Fig. 1, an asbestos plate 12 or 12<SP>1</SP> mounted on wires 13, 13<SP>1</SP> is located on each side of a glass ribbon 2. The ends of the wires are attached to reversibly rotatable drums 17, 14 or 17<SP>1</SP>, 14<SP>1</SP>. In a preferred embodiment a double-headed gas ejector 51 (Fig. 5) is situated centrally of a ribbon 41 on the " downstream " side only. Each head of the gas ejector is separately connected to a gas source, which includes its own heat-exchanger 53 located in the catch pan 47, and through valves and a timing mechanism is operated alternately so that the desired gas movement is produced. Preferably, reversals are made every 4 or 5 seconds. By so regulating the pressure of the gas supplied, the air movement can be affected on the side not containing the ejector. In place of the plates 12, 12<SP>1</SP> there could be used a fan situated on each side of the ribbon. In further embodiments up to two single-headed ejectors are used on each side of the ribbon, the ejectors being positioned adjacent the marginal edges of the ribbon.
Patent GB-1090785-A (GB)
Title: Method of producing porous bodies of thermoplastic material
IPC: B29B7/74
Filed: 1964-11-09
Abstract: Porous bodies are produced using a thermoplastic material and an expanding agent by means of an apparatus provided with two screws enclosed by a casing and in co-operation with one another, the screws, between an intake for the starting material and an outlet for the treated material, forming zones of mutually varying shapes for bringing about different treatment steps, the material during its passage through the interspaces between the screws and the casing of the apparatus being subjected by a plurality of kneading discs to a plurality of kneading operations with components of movement in axial, radial and peripheral directions. The thermoplastic material is supplied with expanding agent in one of the zones and subjected in the interspaces between the screws and the casing to a gelatinization, kneading and mixing process under pressure and heat so that it expands, having left the apparatus, into a porous state. Preferably the various kneading operations are of different durations and intensities. There may be some return flow of the material towards the intake during its passage between some of the kneading discs.  Before the addition of expanding agent the material may be subjected to an increase in temperature and pressure, then to a first kneading operation in order to effect a gelatinization and then to a further increase in pressure.  The material may attain its highest temperature before the addition of the expanding agent, the temperature then being allowed to fall gradually until the material leaves the apparatus.  The kneading discs may act in radial and peripheral directions whilst the screw sections impart a component of motion in an axial direction.  The thermoplastic materials specified are polystyrene, polyethylene and polyvinyl chloride.  The expanding agent is preferably gaseous at room temperature for example methyl chloride.
Patent GB-1152189-A (GB)
Title: Method and apparatus for Coating Sheet Material
Inventor: CHAVANNES MARC ALFRED
IPC: B05C9/14
Filed: 1966-10-13
Abstract: 1,152,189. Coating surfaces. M. A. CHAVANNES and A. W. FIELDING. 13 Oct., 1966 [14 Oct., 1965], No. 45751/66. Heading B2E. [Also in Division D1] A method of coating a plastics sheet material comprises the steps of continuously applying a coating of a liquid containing a plastics material uniformly to one surface of the said sheet, then while maintaining the application of heat to the other surface of the sheet applying heat to the coating and directing a flow of air over the coating to remove liberated vapours and uniformly drying said coating. The film may be of polyethylene or polyvinyl chloride. The coating may comprise polyvinylidene chloride in solution in methyl ethyl ketone. The apparatus which is described comprises a coating roller, means for continuously applying the coating liquid to the surface of the roller, a cooperating roller in contact with the said coating roller, a relatively large heated drum, means for driving the rollers and the drum at a selected peripherous speed, a sheet being continuously fed between the rollers and about said drum with the other surface of the sheet in contact with the drum to heat the other surface of the sheet, radiant heaters positioned in spaced relationship to the drum to heat the coating, means for circulating air between the last of the heaters and over the heated coating to remove liberated vapours and means for removing the dried composite structure from the drum.
Patent GB-1101952-A (GB)
Title: Improvements in or relating to instruments for measuring recorded traces
Inventor: FLACK DENNIS CLIFFORD
IPC: G01B11/03
Filed: 1963-11-22
Abstract: 1,101,952. Measuring traces on strips. SANGAMO WESTON Ltd. Nov. 4, 1964 [Nov. 22, 1963], No. 46252/63. Heading G1M. In an instrument for measuring traces on recording strips 16, there is provided a framework formed with walls 10, defining a strip receiving channel, and two measuring scales 18, 19 movable relative to the framework in two positions overlying the recording strip, the first of the positions being one in which the scales lie on rollers 15 in a direction parallel to the longitudinal axis of the strip and a second position in which the scales extend through slots 17 in the walls 10 in a direction perpendicular to the axis of the strip. The scale plates 18, 19 are marked in divisions along adjacent edges, scale 18 having a set of regular divisions 23 and scale 19, a set of vernier scale divisions. The recording strip 16 is carried through the instrument between rods 14a and rollers 15. In a modification, a transparent cursor plate is inserted between the scale plates 18, 19 and the strip 16 to facilitate measurement. In an alternative arrangement, (see Fig. 5), the measurements are made with the use of a dial indicator 46. In this embodiment, a single scale 31 is used, provided with equispaced cursor lines 32, the spacing between the lines being equal to one revolution on the dial indicator. In use, the cursor line is brought into alignment with the trace to be measured and one of the adjustment screws 45 brought into abutment with the plunger 48 of the dial indicator 46. Thus any subsequent movement of the scale 31 is recorded on the dial indicator.
Patent GB-1155298-A (GB)
Title: Improvements in Material Treating Apparatus.
Inventor: HERSHLER ABE
IPC: B24B31/10
Filed: 1966-10-17
Abstract: 1,155,298. Abrading. A. HERSHLER. 17 Oct., 1966 [24 Oct., 1965], No. 46381/66. Heading B3D. [Also in Division B2] A method of treating the surface of a workpiece comprises engaging the surface with a fluid having dispersed therein a plurality of permanent magnet elements having strengths of at least 50 oersteds and abrasive elements, and establishing in the fluid in the area of the surface a magnetic field varying in direction with time to effect mutual spacing and impart motion to the magnet elements, whereby to engage the abrasive elements with the surface. The method may be applied to the polishing or abrading of the surface of a workpiece or to the comminuting of the workpiece. In apparatus for carrying out the method, a base 11, Fig. 1, supports a solenoid 12 which surrounds a laminated softiron core 13 supporting a ceramic processing tank 14. The tank has a lining 16 of hard material, such as stainless steel or porcelain when used for comminuting or rubber when used for polishing. A slurry containing abrasive elements and permanent magnets and the workpieces to be treated are contained in the tank and alternating current is supplied to the solenoid to produce a varying magnetic field so that the magnet elements impel the abrasive elements against the surface of the workpieee. In another embodiment for producing a hole in a workpiece 23, Fig. 3, which may be of glass, the workpiece is supported by a layer of rubber 24 in a cone 22 disposed in a non-magnetic cylinder 20 surrounded by a solenoid 19. A non-magnetic ring 26 and laminated core 28 are placed above the workpiece to form a space 29 which is partially filled with a slurry containing abrasive and magnetic elements. An alternating supply is connected to the solenoid to cause the elements to abrade the surface of the workpiece. The abrading may be continued until a hole is formed in the workpiece. The magnet elements are between 0À1 microns and 2 inches in size according to whether polishing, grinding or comminuting is being affected. The abrasive elements may be of steel, flint, tungsten, carbide, alumina, boron carbide, silicon carbide or diamond and vary in size, according to the operations, from 0À5 microns to 2 inches. The abrasion elements may be pin-shaped, triangular, spherical or irregular with sharp cutting edges. The magnet elements may consist of permanent magnets 33, Fig. 4, which are coated with silicone adhesive 34 and disposed in a tungsten carbide or ceramic cylinder 36 having end pieces 37. Alternatively, the magnet elements may be coated with hard metal or ceramic by flame spraying. The magnetic field may be produced using a direct current polarizing or alignment field to focus an abrading action. Alternatively, two alternating fields of slightly differing frequencies may be used. The fluid may be water, ethyl or propyl alcohol, light oil or acetone, or a gas such as air.
Patent GB-1449015-A (GB)
Title: Contact assembly for an electric switch
IPC: H01H1/38
Filed: 1973-10-05
Abstract: 1449015 Switch contacts SKODA NARODN1 PODNIK 5 Oct 1973 [26 Feb 1973] 46719/73 [26 Feb 1973] Heading H1N A coaxially arranged switch contact assembly, shown closed, comprises a movable contact 1 abutting an arcing contact 6 the latter being rectilinearly movable under the influence of a spring 10 within the body 3 of a hollow fixed contact 2 between limits imposed by a stop 12 and a shoulder 11 and being surrounded by a cylindrical insulating guideway 5 which is enclosed at one end by a leaky diaphragm to act as a buffer dashpot for absorbing the movable contact energy on switch closure. The current circuit is completed through a plurality of spring-loaded flat plate transfer contacts 7, 9 of which each contact has a first contact surface 20 in permanent engagement with the fixed contact body 3 and of which at least one, such as 9, is a "short" contact bridging the fixed contact body 3 and the arcing contact 6, with the remaining contact 7 being "long" contacts to bridge the fixed contact body 3 and the movable contact 1. For each "short" transfer contact 9 the distance between a second contact surface 21 of the contact and its first contact surface 20 is less than the minimum distance between the end face 25 of the arcing contact 6 and such first contact surface 20 whereas for each "long" transfer contact 7 the distance between a second contact surface 22 of the contact and its corresponding first contact surface 20 is less than the maximum distance and greater than the miniminum distance between the end face 25 of the arcing contact 6 and the corresponding such first contact surface 20. This ensures that on opening the switch the transfer contact or contacts 9 shunt any arcs which might arise between contacts 6 and 7 and prevent the contacts 7 from burning. Radii relationships in the shapes of the various contacts are also described.
Patent GB-1223265-A (GB)
Title: Improvements in or relating to micrometers
Inventor: HODGSON ROY GEORGE
IPC: G01B3/18
Filed: 1968-10-02
Abstract: 1,223,265. Clamps. G.K.N. SHARDLOW METROLOGY Ltd. 14 Oct., 1969 [2 Oct., 1968], No. 46738/68. Heading E2B. [Also in Division G1] A micrometer includes a clamp to prevent relative rotation between a thimble 22 to which a spindle 24 is secured and a barrel 14, the clamp comprising a pin 40 slidable in a duct 42 and a stud 46 located in a bore 44. The stud has a tapered shank 48 so that when a head 52 of the stud is pushed into the bore 44, the shank presses the pin 40 into engagement with the spindle 24 thus locking the thimble to the barrel. The clamp is released by pressing a head 50 of the stud into the bore. Instead of having a tapered shank the stud may have an axial groove of tapering depth.
Patent GB-469205-A (GB)
Abstract: 469,205. Treating sewage &c. LEITCH, P. A., and MILLS, M. W. April 22, 1936, No. 11452. [Class 46] A screening apparatus for sewage &c. is provided with means for breaking up large masses of solid matter to enable this matter to pass with the liquid through the screening device. The sewage flows from a channel a past a deflecting member k into an open-ended reticulated cylinder b carried by a sleeve b<1> in bearings b<2> and slowly rotated through gearwheels by a motor m. The cylinder is fitted with internal collecting troughs c that lift the material and discharge it into a semicircular oscillating basket e with spaced manganese steel or other bars e<1> in which one or more chilled metal fluted rollers f lie, these rollers meshing with the bars e<1>. Longitudinal shoots e2 are situated at one or both sides of the basket. The basket is carried on a central shaft d which is rocked by a rod g<2> connected to a crank g<1> on a countershaft g. One or more scraper devices h which may be yielding or adjustable may act on the outside of the cylinder b and a fixed or rotatable brush i mounted in bearing blocks i<1> carried by angularly adjustable rods i<2> is fitted.