baber/WOPTO huggingface dataset:
Patent GB-512777-A (GB)
Title: Improvements in or relating to clamping devices
IPC: F16B2/06
Filed: 1937-12-08
Abstract: 512,777. Variable condensers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Dec. 8, 1937, No. 33996. Void. Convention date, Dec. 8, 1936. [Class 37] [Also in Group XXIV] A clamping device for securing an article 5, particularly a vanesystem of a variable condenser, on a shaft 4 or the like, comprises a split ring 2, secured in the article at one end by a pin 6, and contracted on the shaft by a screw 8, acting tangentially on its other end. The shaft 4 may be hollow or may be of glass, quartz or ceramic material. In the application to condensers, sleeves carrying the sets of vanes, are secured to their spindles by clamping rings as above.
Patent GB-815010-A (GB)
Title: Improvements in or relating to respiratory devices
IPC: A62B18/08
Filed: 1956-11-07
Abstract: 815,010. Respiratory appliances. WILKINS, E. T. Jan. 31, 1958 [Nov. 7, 1956], No. 34044/56. Class 81 (2). A mask 11, which may be of transparent plastic material, is held slightly spaced from the wearer's face, and a container 14 is provided to emit a gaseous or vaporous reagent into the intervening space so as to neutralize atmospheric acid in fog &c. The mask may be made from a flat sheet of material with a V-cut in its lower edge so that the edges of the cut may be overlapped and held together by press studs 16. Other studs 18 are provided to carry a chin strap and the whole mask is held in position by elastic head straps 13. The container 14 may enclose ammonium carbonate, vapour from which passes out through a small vent hole, or alternatively it may hold cotton wool soaked in a liquid source of ammonia.
Patent GB-795588-A (GB)
Title: Improvements relating to the regeneration of polyester materials
IPC: C08J11/12
Filed: 1955-11-29
Abstract: <PICT:0795588/IV (a)/1> A method of recovering and reutilizing polyesters from polyurethane resin scrap comprises the steps of igniting foamed polyurethane resins and recovering the liquid formed as combustion of the resin takes place.  The process may be effected by igniting the foam in air in a vessel, draining away the liquid formed, and cooling it below the ignition point.  The liquid can be mixed with fresh polyester and reacted with a polyisocyanate in the presence of a hydrolysing agent to form a polyurethane resin foam. In an example polyurethane foam scrap is charged into a vessel 1 and ignited, and liquid polyester drops through the holes 5 into the tray 2 and flows into the can 4.  After cooling, it may be mixed with fresh polyester and converted to polyurethane foam by reaction with a diisocyanate in the presence of an activator mixture which includes water or an equivalent agent such as a metallic salt hydrate, an accelerator such as an amine, an emulsifying agent such as a sulphonated oil, and an agent for regulating the pore size of the foam, such as paraffin oil.
Patent GB-935001-A (GB)
Title: Improvements in or relating to the stiffening of shoes
Inventor: HAWKES JOHN ARTHUR
IPC: A43B23/16
Filed: 1958-10-25
Abstract: 935,001. Toe and counter stiffeners. BRITISH UNITED SHOE MACHINERY CO. Ltd. Jan. 22, 1960 [Oct. 25, 1958; June 23, 1959], Nos. 34214/58 and 21426/59. Class 17 (2). [Also in Group VIII] A shoe stiffener blank comprises a fibrous base loaded with a composition comprising a thermoplastic synthetic resinous material, the composition being in such a condition that the blank after being submitted to a temperature of 100‹ C. or less and then cooled will be substantially stiffer. In making the blank a woven cotton cloth was passed through a bath containing polystyrene, a plasticizer, e.g. dibutyl phthalate and water, and possibly a rosinderived resin or a coconut shell flow dispersion, led between stripper rolls and through a drying chamber at a temperature below the softening point of the composition after drying. The composition then became deposited in the form of individual particles sintered together at their point of contact. The material was then calendered to a uniform gauge, cut up to provide stiffener blanks, and the marginal portions of the blanks were skived. The dried impregnant was conveniently present in an amount by weight at least equal to the weight of the fibrous base. The stiffener blanks ware then suitable for use as heat-activated blanks and when sufficient heat is supplied to the blanks the sintered particles of the polystyrene composition become fused and form a continuous film, and thus on cooling are much stiffer. The material may be coated on one side with an adhesive which is non-tacky at room temperature, but becomes tacky when heated, and on the other side by a neoprene adhesive suitable for binding flock to the material.
Patent GB-447250-A (GB)
Title: Gas-producing apparatus
IPC: B01J7/02
Filed: 1935-12-11
Abstract: <PICT:0447250/IV/1> A Kipp apparatus is characterized in that the acid container 1 is in communication with the gas-producing vessel solely by means of an up-tube 8, the openings 10 or the upper edge 11 of which are respectively situated above the highest liquid level in the gas - producing vessel, in order to prevent mixing of fresh acid with the decomposed products.  The acid container 1 and the gas-producing vessel 2 are made of one piece of glass.  The up-tube 8 is fitted air-tight into the neck 9 between the container 1 and the vessel 2, is sufficiently long to project above the vessel 2, and may be provided with the openings 10 near the upper end of the vessel 2 or in the gas container 4, which container is fitted air-tight into the neck at the top of the vessel 2, and is provided with a gas outlet tap 5.  The acid supply container 6 is fitted air-tight into the neck at the top of the container 4, and its tube 7 reaches nearly to the bottom of the container 1.  Acid is filled into the containers 1 and 6, and, if the tap 5 is open, rises in the tube 8, flows through the openings 10, or over the upper edge 11 of the tube 8, and on to the material in the vessel 2.
Patent GB-447922-A (GB)
Title: Improvements in or relating to tent pegs
IPC: E04H15/62
Filed: 1934-11-30
Abstract: 447,922. Tent pegs. LEGG, O., 17, Goswell Terrace, Goswell Road, London. Nov. 30, 1934, No. 34398. [Class 45] A metal tent peg comprises a lower tapered stem portion 1 of V-section, surmounted by an integral box-like portion provided with means for securing a guy rope, the upper end of the box part being closed by a cover which is integral with the body of the tent peg. The peg may either be cast or formed of sheet metal in which case the cover is constituted by an extension 6 of the back 2, the cover being bent over to seat on the upper ends of the sides 3, 4 and being provided with lugs 7 which maintain the sides in position. The front part of the cover is bent down against the front edges of the sides and is locked by lugs 9 on wing extensions 5 of the sides, which are bent round to constitute the front of the box. Notches are formed at the corners where the cover extension joins the body to minimize risk of failure when bending. The guy rope may be secured by a hook formed by slitting the back of the box along three lines and bending the separated portion to hook shape 11, or the guy rope may be provided with a hook to engage in a strap formed by slitting the back of the box along a pair of parallel lines and bending over the part between the slits to form a loop. The sides of the box may be formed with strengthening ribs 12.
Patent GB-1125358-A (GB)
Title: Improvements relating to detection in liquid chromatography
IPC: G01N30/06
Filed: 1967-07-26
Abstract: 1,125,358. Electro-chemical analysis. V. PRETORIUS and H.H. HAHN. July 26, 1967 [Aug. 2, 1966], No.34443/67. Addition to 1,120.364. Heading G1N. The progress of a chromatogram in a liquid chromatography system is monitored by passing a moving liquid phase of the system in contact with a solid detection electrode and observing a constitution and concentration dependent electrical quantity detectable at the detection electrode with reference to a reference electrode connected to the system. The electrical quantity may be changes in the electrical double layer on the detection electrode produced by the zeta effect, or the capacitance between the electrodes, or the conductivity of the eluate. A solute may be detected indirectly by observing the rate of an electrolytic reaction involving oxygen dissolved in the forwarding phase. For measuring conductivity at the outlet of a chromatographic column, the column wall (2), made of stainless steel, may serve as one electrode, and a smaller diameter glassy carbon tube (4) as the other. For measuring conductivity at a point intermediate the ends of a column, two porous layers (9), (10) of sintered resin powder containing metal or graphite separated by an insulating layer of sintered P.T.F.E. (13) may be used. Alternatively, two graphite rods may extend in diametrically opposing relationship through the walls of a glass column. For measuring zeta effect, two glassy carbon ring electrodes (15), (16) separated by a capillary tube (14) may be used. One of the ring electrodes may co-operate with the stainless steel tube (2) for measuring conductivity. Several detectors, selectable by switches, may be situated at different stages of a chromatographic system. Examples of substances which may be detected include: fatty acids, aromatic nitro compounds, and pesticides.
Patent GB-960896-A (GB)
Title: Production of penicillins
Inventor: TESTA EMILIO
IPC: C07D265/10
Filed: 1961-09-26
Abstract: Penicillins of the general formula: <FORM:0960896/C1/1> wherein X represents oxygen or (CH2)n in which n is O or an integer from 1 to 3 inclusive are prepared by reacting an aminoacid of the formula: <FORM:0960896/C1/2> wherein X has the above significance, with phosgene in an inert organic solvent and contacting the obtained anhydride of the formula: <FORM:0960896/C1/3> with an about equivalent amount of an alkali metal salt of 6-aminopenicillanic acid in a mixture of water and a water soluble organic solvent at a temperature not exceeding 20 DEG C. Examples describe the production of DL-, L-(+)- and D-(-)-beta - amino - alpha - phenylethyl penicillin, DL-alpha-aminobenzylpenicillin, D-(-)-alpha-aminobenzylpenicillin, alpha-aminoxybenzylpenicillin, alpha-phenylgamma-aminopropylpenicillin, and alpha-phenyldelta-aminobutylpenicillin either as free acid or as the sodium salt.
Patent GB-826399-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of chipboards
IPC: B27N3/14
Filed: 1957-11-06
Abstract: <PICT:0826399/IV (a)/1> An apparatus for forming a fleece of wood chips for the production of chipboards comprises an elongated chamber 3 having an air blower 8 positioned centrally in it which blows air through apertures 9 horizontally across the chamber 3 whereby the finer of ungraded, glued wood chips entering through hoppers 10 are carried farthest, resulting in a fleece 6 being formed on a conveyer belt 5 passing under the open bottom of chamber 3.  Outlets 15 in the chamber connect with conduits leading back to blower 8.
Patent GB-197911-A (GB)
Title: Radio apparatus tuning mechanism
IPC: H03J1/14
Filed: 1922-12-19
Abstract: 197,911. Huth, W. H. Dec. 19, 1922. Variable - s p e e d toothed gearing; securing toothed wheels on shafts.-A knob or handle for adjusting variometers, variable condensers, &c. used in tuning wireless apparatus drives the adjustable element through speed-reducing means, the knob or handle or element being co-axially arranged and adapted to rotate always in the same direction. Means may be provided for changing to a direct drive for rapid course adjustment. A base plate 1 secured to a wall 2 has cast in it a stud 5 on which are freely revoluble a gear-wheel 6 and pinion 7 rigid with each other. The pinion 7 meshes with a wheel 8 secured on a spindle 11, Fig. 3, preferably by riveting over the shoulder 10 thereof. The driven shaft 18 is secured in the boss 9 of the spindle 11, on which is freely mounted a sleeve 12 having at one end a pinion 13 provided with clutch pins 14. The knob 16 is fast with the sleeve 12, outward movement thereof being limited by a stop 17 screwed in the spindle 11. As shown, the pinion 13 meshes with the gear 6 for low speed, but by sliding the knob inwards, the wheels 13, 5 come out of mesh and the pins 14 engage holes in the wheel 8 for direct drive, whereby rapid coarse adjustment of the shaft 18 can be effected. A pointer (not shown) is mounted on the shaft 18 to swing between the parts 1, 2.
Patent GB-366176-A (GB)
Title: Improvements in or relating to devices for clamping or securing miners' lamps, cables, signal wires, scaffolding, or other apparatus to steel joists, tubes, pipes, pit props and the like
IPC: F16B2/14
Filed: 1930-11-17
Abstract: 366,176. Supporting pipes. ALLEN, C. A., Cranford, Tredegar, Monmouthshire. Nov. 17, 1930, No. 34582. [Class 99 (ii).] A clamping device; by which pipes may be attached to joists, beams, pipes, or other supports of any cross section, comprises two independent members 1, 2 formed with jaws 3 which are drawn together to grip the support by a wedge 8 passed through holes; 4, 7 formed by bending over the member 1 and the arms 6 of the member 2. The top of the wedge 8 is bent over to form a driving head 16 while the bottom is formed as a suspension hook 17. The wedge may taper on one or both sides, and the tapered edge or edges may be formed with a step which provides, on the same edge, two tapered surfaces and permits ready attachment of the device to supports of differing widths. The'clamp may also be adapted for supports of differing widths by the construction shown in Fig. 8, in which each of the members 1, 2 is formed with an opposed pair of jaws 3 to provide, when the parts are assembled, a double. sided clamp. Fig. 9 shows a form of clamp suitable for use with circular section supports when the support is made of wood, the arcshaped jaws 3 may be replaced by spikes. The jaws 3 may also be replaced by a chain secured to one member and a hook formed on the other.
Patent GB-1432783-A (GB)
Title: Macromolecular monomers
IPC: C08F8/00
Filed: 1973-03-26
Abstract: 1432783 Introducing polymerizable end groups into polymers CPC INTERNATIONAL Inc 26 March 1973 [14 April 1972 21 Aug 1972] 34683/75 Divided out of 1432782 Addition to 1392612 Headings C3P and C3R A process for preparing a copolymerizable macromolecular monomer comprises polymerizing at least one anionically polymerizable monomer in the presence of an anionic polymerization initiator to thereby form a monofunctional living polymer; optionally, reacting the monofunctional living polymer with a capping agent; thereafter, reacting the monfunctional living polymer with a terminating agent which contains a copolymerizable end group; and recovering said copolymerizable macromolecular monomer; characterized in that (a) said copolymerizable macromolecular monomers have a substantially uniform molecular weight distribution such that the ration of Mw/Mn is less than 1À1, wherein Mw is the weight average molecular weight of the macromolecular monomers, and Mn is the number average molecular weight of the macromolecular monomers, and (b) said macromolecular monomer contains at least one member selected from the group consisting of: (i) a residue of an alkali metal salt of a tertiary alcohol anionic polymerization initiator; (ii) a capping agent selected from butadiene or isoprene; (iii) a copolymerizable end group derived from a terminating agent selected from 2-halomethyl 1,3-butadiene, haloalkylmaleic anhydride, haloalkylmaleate esters, vinyl haloaryls, vinyl haloalkaryls, maleic anhydride, acrylic anhydride methacrylic anhydride, and an epihalohydrin the epoxy group of which is hydrolysed and then reacted with acrylyl halide, methacrylyl halide or maleic acid halide; (iv) a polymeric segment of a vinyl aromatic hydrocarbon having a molecular weight in the range of from 5000 to 50,000 and a polymeric segment of a conjugated diene containing 4 to 12 carbon atoms per molecule. The products may be represented by the formula I-(P 1 ) n -(X) w -(Y) in which I is the residue of a monofunctional anionic initiator, P 1  is an anionically polymerized monomer, X is derived from a capping agent and Y is derived from a terminating agent containing a polymerizable group, n is at least 20 and w is zero or 1. In examples polyethylene oxide obtained using sec. butyl lithium initiator is terminated with vinyl benzyl chloride, and polymers of vinyl pyridine, methacrylontrile, methyl methacrylate, dimethylacrylamide, styrene, isoprene, or polystyrene-polyisoprene block copolymers obtained using as initiators potassium t-butyl alkoxylate, n-butyl lithium, t-butyl lithium, or sec. butyl lithium, are terminated with allyl chloride, vinyl benzyl chloride, maleic anhydride, or methacrylyl chloride optionally after an intermediate capping reaction with butadiene or ethylene oxide.
Patent GB-858553-A (GB)
Title: Improvements in and relating to rectifier circuits
IPC: H02M7/217
Filed: 1957-11-07
Abstract: 858,553. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd., and EASTOP, R. H. Nov. 7, 1958 [Nov. 7, 1957], No. 34698/57. Class 38 (2). A polyphase bridge rectifying circuit for supplying a controllable unidirectional current to a load includes two groups of three transistors, those in one group 11 having their collectors connected through a common point 6 to one end of load 20, and those in the other group 14 having either their collectors or emitters, depending on conductivity type, connected through common point 7 to the other end of the load. Each supply line 1 is connected through the primary winding of a current transformer 17 to one of the rectifiers in each group. Each transformer has two secondaries which are connected between the bases and collectors of transistors 11 and 14 respectively, the phasing being such that the transistors are switched synchronously to supply unidirectional current to the load. The secondary windings associated with transistors 11 are connected to a common point 5 which is connected through switch 26 to point 6. Lines 1 are bridged by diodes 23 having a star-point 4 connected through current limiting resistor 22 to point 5. Switch 26 may be a singlepole synchronous switch or may comprise a transistor 27 (Fig. 1b) driven by current pulse generator 31 so that the transistor has alternately high and low impedance between its collector and emitter, which are connected to points 6 and 5 respectively. When transistor 27 is conducting the groups of transistors 11 and 14 will act as simple diodes and unidirectional current will pass through load 20. When transistor 27 is substantially non- conducting no load current flows since the bases of transistors 11 are connected to point 4 which must always be the most positive point in the circuit so that the transistors are blocked. In a modification the point 4 is held at a highpositive potential by connecting a D.C. bias supply between point 4 and the neutral point of the supply system.
Patent GB-191274-A (GB)
Title: Improvements to grinding or disintegrating machines
IPC: B02C13/22
Filed: 1921-12-24
Abstract: 191,274. Oswald, H. N. Dec. 24, 1921. Impact pulverizers.-In grinding or pulverizing machines of the kind comprising two discs a, b facing one another and revolving in opposite directions and provided with groups of projecting pins c, d, the groups of pins are arranged in compartments with restricted outlets leading to one or more further groups of pins. As shown, the discs a, bare mounted on shafts g, h revolving in opposite directions in bearings j, k. The pins c, d are arranged in concentric circles, and each group consisting of one circle of each of the pins c, d is separated from the adjacent group by a partition e or f secured to the disc a or b. Material to be ground is fed into the machines through a hopper l and after being ground is discharged into the casing m and drawn away by an air draught or a conveyer. The air draught may be caused by fan blades n on one of the discs or by a separate fan.
Patent GB-1444507-A (GB)
Title: Protecting refractory linings of furnaces by cooling
IPC: F27B3/12
Filed: 1974-08-07
Abstract: 1444507 Cooling refractory linings HATCH ASSOCIATES Ltd 7 Aug 1974 [15 Oct 1973] 34737/74 Heading F4B Refractory linings of furnaces are protected by solid cooling members 35 made of material of high thermal conductivity, such as pure copper, which are designed to conduct sufficient heat to the outside to prevent refractory attack. The outer portions 35a of the cooling members remain outside the furnace and may contain water cooled channels 33, or the outer portions may be cooled by natural convection from solid plates (41), Fig. 5 (not shown), or by fins (51), Fig. 7 (not shown). Refractory walls already eroded may be protected by drilling holes into the lining in the affected area and inserting solid coolers (18) Fig. 3 (not shown).
Patent GB-613122-A (GB)
Title: Method and apparatus for manufacturing piezo-electric crystal elements
IPC: B24B9/06
Filed: 1945-12-21
Abstract: 613,122. Grinding and polishing. STANDARD TELEPHONES & CABLES, Ltd. Dec. 21, 1945, No. 34760. Convention date, Dec. 26, 1944. [Class 60] [Also in Group XL (c)] Piezoelectric crystal plates are made by cutting a number of equal sized rectangular blanks which are formed into a parallel-sided loaf (chain lines, Fig. 1) held rigid by solidified wax. The loaf is then tapered by grinding two of its adjacent long faces to produce a series of similar shaped plates having a desired range of natural frequencies. The crystal loaves 2 are mounted in ferrous holders of right-angled form arranged in adjacent pairs on the face of a magnetic chuck 3 driven by a spindle 4 so as to rotate at an angle to a rotating grinder 5. Manual and automatic means for advancing the rotating chuck may be provided.
Patent GB-1369270-A (GB)
Title: Casting of directionally solidified articles
IPC: C30B11/00
Filed: 1972-07-25
Abstract: 1369270 Casting processes and apparatus UNITED AIRCRAFT CORP 25 July 1972 [15 Sept 1971] 34772/72 Heading B3F Directionally solidified castings (e.g. turbine blades) are prepared by immersing a mould containing liquid alloy into a liquid coolant bath. In Fig. 1 a shell mould 2 is heated by induction (coils 10 and graphite susceptor 8) to a temperature, e.g. 1566 C., above the melting point of an alloy to be cast in the mould 2, while tin is heated (by coils 24) to form a molten tin coolant bath 22. Superheated alloy (e.g. at 1566 C.) is poured through a funnel 18 into the mould 2 held in a vacuum or inert atmosphere. The mould 2 is lowered on a support 4 into the bath 22 of molten tin at 260 C., the tin being stirred to increase heat removal from the mould 2 and the susceptor 8 being heated so that a sharp thermal gradient is set up between the coolant bath 22 and susceptor 8. The alloy in the mould solidifies from the base upwardly at rates of up to 457 cm./hr. as the mould 2 is immersed in the bath 22. In this way, fine dendritic spacing is produced in either single crystal or columnar grain castings. Single crystals are obtained by providing in the mould 2 below each article-forming cavity 30, a crystal growth cavity 42 surmounted by a single crystal selecting helix 40. To produce columnar castings the helix 40 is omitted and for forming columnar castings with crystal growth directed along planes other than [0, 0, 1] a seed crystal (48) may be located at the base of the mould cavity (not shown). In an alternative apparatus (Fig. 5) superheated alloy is cast into a mould 50 located on a chill plate 52 of an induction furnace 54, 58. Molten tin is poured from a pipe 60 around the mould 50 as heating coils 58 are switched off upwardly from the chill plate 52 to induce upward solidification of melt within the mould 50.