baber/WOPTO huggingface dataset:
Patent GB-1043893-A (GB)
Title: Reinforced sheet materials
IPC: D04H3/12
Filed: 1963-05-30
Abstract: 1,043,893. Laminates and laminating. ETABLISSEMENTS D. DUCARIN. May 30, 1963 [May 30, 1962], No. 21731/63. Heading B5N. A flexible reinforced web is made by winding a weft thread about two spaced-apart selvedge threads to form a weft layer, applying to one or both faces of this a row of spaced-apart warp threads, impregnating the assembly with adhesive in a manner such that no adhesive film is formed over the mesh interstices, then applying to one or both faces of the mesh a web of sheet material to be reinforced. Preferably the reinforcing web is made of dimensionally-stable polynosic or synthetic fibres. The outer webs may be of plastic or paper but in the embodiment are of wadding. The completed laminate may be further impregnated or treated to provide a variety of finishes or properties. Jets of air may be directed through the impregnated mesh to assist in breaking up film formation, but the adhesive should be of such viscosity that it does not readily form a film, examples being acrylic and vinyl resins or a synthetic latex. Setting of the adhesive may be obtained by passing the mesh over a heated drum after applying the webs and pressing by rollers. The product may be perforated, and several may be superimposed. A variety of disposable articles of clothing or household fabrics may be produced.
Patent GB-862556-A (GB)
Title: Moulds for patterns for precision casting
Inventor: MOUNTFORD NORMAN DUNCAN GERARD
IPC: B22C1/16
Filed: 1958-07-07
Abstract: A mould made from a material hardenable by carbon dioxide is formed around a model of the pattern required, the model itself not being an expendable pattern, and, after being hardened and removed from the model, is used to form the expendable pattern from, e.g. wax.  A suitable composition for the mould is sodium carboxy methyl cellulose plus sodium carbonate, a refractory e.g. sand or zircon and sodium silicate solution.  Such a composition is dispersible in water by which means the mould is removed from the pattern.  The model around which the mould is formed may conveniently be of wood, the mould being split if necessary for removal from the model.  The mould may be sprayed internally with rubber latex to give it a good surface which the material of the pattern will not penetrate.  Specification 787,052 is referred to.
Patent GB-901900-A (GB)
Title: Metal complex compounds of triazole azo dyestuffs
IPC: C09B43/06
Filed: 1960-06-21
Abstract: The invention comprises dyes of formula <FORM:0901900/IV (b)/1> where R1 is the residue of a diazo-azo compound, R2 is a coupling component residue with the azo group o to a phenolic or enolic hydroxy group, X is H or SO3H and Me is bivalent metal, preferably copper.  The dyes may be made by coupling 2,5-diaminonaphthalene-8-mono- or 4,8-di-sulphonic acid with a diazo-azo compound o to the 5 amino group, triazolising, further diazotising and coupling with a component o to a phenolic or enolic hydroxy group and metallising the product.  Alternatively a 2-acylamino-5-aminonaphthalene sulphonic acid may be used as a starting material and the first stage product saponified before further diazotisation; or the first stage product may be diazotised and coupled before triazolisation.  Representative of indicated diazo-azo components are 4-aminoazobenzene-41-sulphonic acid, 4-aminoazobenzene-3-41-disulphonic acid --> 3-toluidine, 2-naphthylamine- 6,8-disulphonic --> 2-anisidine --> 2-toluidine and <FORM:0901900/IV (b)/2> Specified second coupling components include 4-cresol, 2-naphthol-6-sulphonic acid, 1-ethoxy-8-naphthol- 3,6-disulphonic acid, 1-chloro-2-amino- 5-naphthol- 7-sulphonic acid and phenyl-methylpyrazolone- 3-sulphonic acid.  Metallisation may be effected as in Specifications 660,447, 721,495 or 790,386.  Other metal complexes may be made from the copper complexes by demetallising and treating with the salt of another metal, e.g. nickel.  When R1 and R2 contain reactive groups, such as nitro groups which may be reductively combined with another nitro compound to form azo or azoxy groups, they may be further reacted at an intermediate stage after product formation.  The dyes colour vegetable fibres, especially cotton and viscose. Examples are given illustrating the preparation of copper complexes of dis- and tris-azo dyes and an azo-stilbene dye and their use in colouring cotton in brown or currant shades.
Patent GB-662595-A (GB)
Title: Improvements in aircraft
IPC: B64C25/50
Filed: 1949-08-23
Abstract: 662,595. Freight-carrying aircraft. BLACKBURN & GENERAL AIRCRAFT, Ltd., and TAYLOR, C. W. July 5, 1950 [Aug. 23, 1949], No. 21905/49. Class 4. A freight-carrying air. craft is provided with a loading ramp pivoted to the nose of the fuselage and carrying a strut on which is mounted a nose landing element. As shown the ramp is in two hinged por. tions 1, 3 which lie against each other in the raised position, and which are opened out by a jack 5 when the ramp is lowered The ramp is operated by a second jack 11. The ramp portion 1 carries an olec strut 6 extending beyond the hinge 2 by which the ramp is connected to the fuselage, a landing wheel or wheels 7 being mounted at the lower end of the strut. In order to reduce the inclination of the fuselage due to the partial retraction of the wheel 7, the struts 17 of the main landing wheels 16 are shortened when the ramp is lowered. A self-centring cam 13 on the strut 6 is engaged by a spring plunger 14.
Patent GB-878051-A (GB)
Title: Take-up and locking buckle
IPC: B60P7/08
Filed: 1959-06-25
Abstract: 878,051. Strap strainers. AEROQUIP A.G. June 25, 1959 [July 8, 1958], No. 21914/59. Class 45. [Also in Group XXV] A buckle for taking up tension in a strap comprises a frame 10 having two side members 11 between which is mounted a spindle 30, a lever 31 pivoted on the spindle, a circular cross-sectional roller 33 mounted coaxially on the spindle and a circular cross-sectional bar 36 carried by the lever so as to be spaced apart and parallel to the roller, the arrangement being such that the face end 63 of the strap may be looped about the circular bar and the doubled over strap partially wrapped around the roller and the strap may then be drawn tightly around the roller and clamped by pivoting of the lever. The lever is fastened in the clamping position by a pin 38 mounted in slots 37 in the lever and biased by a spring 40 into open-ended slots 19 in the frame.
Patent GB-1426298-A (GB)
Title: Stencil sheet and method of making an imaged stencil sheet
IPC: B41N1/24
Filed: 1973-05-08
Abstract: 1426298 Thermographic stencil sheet WEBER MARKING SYSTEMS Inc 8 May 1973 [15 May 1972] 21922/73 Heading G2C A stencil sheet comprises an ink-pervious base sheet having an ink-impervious coating thereon of a heat flowable composition of thermoplastic film forming material comprising a cellulose organic ester, and plasticizing material partially but incompletely compatible (i.e. when the plasticizing material is heated with the film-forming material in the proportions used, a homogeneous single phase melt is formed which when cooled to ambient or room temperature forms a two-phase mixture, at least one phase of the mixture incorporating substantial proportions of both the film-forming material and the plasticizing material) with the filmforming material, the plasticizing material containing an alkylene oxide ester or ether of a 12-20C fatty acid or fatty alcohol, having an HLB value of 1À5 to 8, and being in a proportion of 5-65% by volume based on the total volume of the filmforming and plasticizing materials. The alkylene oxide may be ethylene or propylene oxide. The cellulose ester may be cellulose acetate propionate, cellulose acetate butyrate, cellulose acetate valerate, cellulose propionate butyrate, cellulose propionate valerate, cellulose butyrate valerate, cellulose propionate, cellulose butyrate or cellulose valerate. The plasticizing material may also include a mineral oil and a thermoplastic polymeric hydrocarbon resin having a total content of polymerized indenes and/or coumarones of at least 30 wt per cent., in a proportion of 3-60% by volume based on the total volume of the film-forming and plasticizing materials (see Specification 1426297). In Example 4 the composition contains titanium dioxide, chrome yellow, and silica. The stencil sheet has enhanced durability and in preferred embodiments oil transfer is also reduced.
Patent GB-809908-A (GB)
Title: A continuous process for preparing meta di-isopropylbenzene
IPC: C07C15/02
Filed: 1955-07-29
Abstract: Meta-di-isopropylbenzene is prepared in a continuous process by alkylating benzene or cumene or a mixture thereof, isomerizing the fraction containing ortho- and meta-diisopropyl benzene, and separating by distillation a fraction consisting of ortho- and meta-diisopropylbenzenes from the isomerization product.  A fraction containing more than 2 isopropyl groups may be removed from the alkylation product and subjected to transalkylation with benzene or cumene or mixtures thereof; the ortho- and meta-diisopropylbenzene fraction from the product may be combined with the similar fraction from the isomerizer.  The mixture of ortho- and metadiisopropylbenzenes may also be transalkylated, either alone or together with the higher alkylated products. Alkylation agents specified are isopropyl halides such as isopropyl chloride, isopropyl alcohol, propane or a propene-propane mixture containing 60 per cent propene. Alkylation catalysts referred to are Friedel-Crafts catalysts, e.g. AlCl3, concentrated H2SO4, HF or a cracking catalyst such as a silicate which may consist mainly of SiO2 and also contain oxides of Al, Zr, Mg, Ca, Na, K, H, C and S in chemically bound form; or mixtures of Al2O3 and SiO2.  Specifications 737,439, 749,186, 749,187, 770,224 and 772,635 are referred to.
Patent GB-1335511-A (GB)
Title: Vehicle bodies having occupant restraint systems
IPC: B60R22/04
Filed: 1972-05-11
Abstract: 1335511 Safety harness GENERAL MOTORS CORP 11 May 1972 [18 May 1971 21 May 1971] 22125/72 Heading A3V [Also in Division E2]  A vehicle body door 12 is provided with a lockable reel 16 for a belt 15 of a safety harness, the locking and unlocking of the reel being controlled by a Bowden cable mechanism from the vehicle door lock 74 which is known and is of the uncoupling type, the arrangement being such that operation of the interior door handle or movement of the lock to its unlatched position unlocks the reel 16 allowing the belt 15 to be withdrawn therefrom. The reel 16 (Figure 4) includes a shaft 30 journalled in walls 26, 27 of the reel frame 22, the shaft carrying toothed end plates 32 which engage with a pawl 34 pivoted on a shaft 38. A spring 40 holds the pawl 34 normally in engagement with the teeth on the plates 32 to prevent belt withdrawal. One end of the wire 56 of a Bowden cable 58 is secured to a lever 46 pivotally mounted on a shaft 38 on the reel frame and actuation of the wire 56 causes engagement between an arcuate slot 48 in the lever 46 and a pin 50 carried by the pawl 34 and consequent unlocking of the reel 16. The other end of the wire 56 is secured to a plate 70 (Figure 2) on a support 63 mounted in the door 12. A spring 72 urges the plate 70 in the direction to lock the reel 16. Wires 122, 132 of Bowden cables 120, 128 pass freely through the plate 70 and are provided with nipples 126, 150 at their ends. The arrangement is such that actuation of either of the wires 122, 132 will move the plate 70 to unlock the reel 16. The wire 122 is coupled to a lever 92 in the vehicle door lock 74, the lever being actuated by the interior or exterior door handles (not shown). Such actuation also moves a locking bolt 76 to its unlatched position and this moves wire 132 to hold the reel 16 unlocked whilst the vehicle door is open and after release of the operating handle. The locking bolt 76 may be immobilised by use of an interior locking button (not shown) but allows the interior handle to operate the lever 92 so that a passenger may release the reel 16 by operation of the interior door handle without unlatching the vehicle door. In an alternative embodiment a single rod control is provided between the lever 92 and the reel 16 and a separate manually operable release lever is provided on the reel itself.
Patent GB-665913-A (GB)
Title: Improvements in or relating to electrical waveform shaping circuits
Inventor: OLLERENSHAW CHARLES
IPC: H03K12/00
Filed: 1948-08-23
Abstract: 665,913. Pulse generating circuits. GENERAL ELECTRIC CO., Ltd. Aug. 19, 1949 [Aug. 23, 1948], No. 22187/48. Class 40 (vi). A pulse having a duration determined by the phase-difference between two sinusoidal voltages is produced by applying the two voltages to two grids of a valve or to the grids of two valves respectively, the peak value of the negative half-cycles of the applied voltages being large compared with the anode, current cut-off voltage of the grids and the positive potential attained by the grid being limited to a value considerably less than the peak positive value of either voltage. Fig. 1 shows a circuit in which the voltage 13 and the phase-shifted voltage 14 are applied to the grids of valves 1 and 2 respectively and the output pulse is produced across resistor 3, the positive grid swings being limited by grid current flow in resistors 9 and 10. In a modification, Fig. 3 (not shown) the two sinusoidal voltages are applied to the first and third grids of a hexode valve a rectifier connected between the third grid and cathode preventing the grid from attaining a potential which is positive with respect to cathode. In a further modification, Fig. 4 (not shown), the two sinusoidal voltages are applied via rectifiers to the grid of a triode valve so that only negative going voltage swings at the grid of the valve.
Patent GB-760779-A (GB)
Title: Electric resistors covered by a vitreous coating
Inventor: PAUL OSKAR
IPC: H01C1/036
Filed: 1954-07-29
Abstract: 760,779. Wire-wound resistors. ROSENTHAL-ISOLATOREN GES. July 29, 1954 No. 22190/54. Class 37. Relates to wire-wound vitreous enamelled resistors. The invention provides an auxiliary insulating coating between the resistance wire and the outer vitreous enamel coating. The auxiliary insulating coating has a fusion point above that of the vitreous enamel. In one method of production an auxiliary support consists of organic material and is formed by winding or covering a temporary, core with hose, tube, strip, fibre or mesh. The auxiliary support is then wound with resistance wire followed by application of the auxiliary coating which may consist of putty or cement. Further steps comprise removal of core and heattreatment to harden the putty or cement and shrink &c. the auxiliary support and then remove the latter and finally apply the vitreous enamel. In a modification the resistance wire is wound around glass fibres or fabric constituting the auxiliary support which in this case remains as a permanent lightweight core.
Patent GB-203691-A (GB)
Title: Process of manufacturing furfural
IPC: C07D307/50
Filed: 1923-09-04
Abstract: 203,691. Quaker Oats Co., (Assignees of Miner, C. S., and Brownlee, H. J.). Sept. 7, 1922, [Convention date]. Digesters. - A rotary steam jacketed digester 1 is provided with a plurality of pipes or steam inlets 2 and a valve 5 to prevent or regulate escape of steam.
Patent GB-822736-A (GB)
Title: New indoles and process for their manufacture
Filed: 1956-07-18
Abstract: The invention comprises indoles of the formula <FORM:0822736/IV (a)/1> where R is alkyl, substituted alkyl or aralkyl, and R1 is H, alkyl, hydroxyl or substituted hydroxyl, and salts thereof.  The salts are obtained by reacting an amino-nitrile <FORM:0822736/IV (a)/2> with a suitable compound RX, where X is e.g. halogen, benzenesulphonate or p-toluenesulphonate, if desired in the presence of a solvent.  The salts can be converted into the free bases from which other salts may be obtained.  Examples show the production of 1-methyl-2-amino-indole, 1-benzyl-2-amino-indole, 1-carbethoxymethyl - 2 - amino - indole, 1 - ethyl - 2-amino - indole, 1 - methyl - 2 - amino - 5 - methoxyindole and 1-methyl-2-amino-5-benzyloxy-indole, from which 1-methyl-2-amino-5-hydroxyindole can be obtained by hydrogenolysis.  2-Amino-benzyl cyanides can be made by reducing the corresponding 2-nitro compounds, the preparation of 2-amino-5-methoxy-benzyl cyanide and 2-amino-5-benzyloxy-benzyl cyanide being mentioned.
Patent GB-1271383-A (GB)
Title: A linear voltage controlled phase shifter for triangular waves
Inventor: CLARK BRUCE JOHN
IPC: H03K4/06
Filed: 1969-05-01
Abstract: 1,271,383. Phase shift circuits. PROSSER SCIENTIFIC INSTRUMENTS Ltd. 1 May, 1970 [1 May, 1969], No. 22356/69. Heading H3T. A method of phase shifting a triangular waveform comprises adding a rectangular wave to the triangular wave Fig. 2, and folding over the peaks of the waveform Fig. 3. A triangular wave signal generated by an oscillator G T  is applied to a square wave generator 3, the resulting square wave being summed with the triangular wave in adder A 3 . The adder output is then fed to a "commutator" circuit which "folds over" the peaks of the composite waveform when these exceed limits of ŒV M  set by two reference signals applied to comparators CP 12 , CP 13 . The square wave generator 3 is similar in form to the "commutator" but has only one reference input D, Fig. 4 (not shown). The generator G T , as shown, comprises an integrator A 1  producing a triangular wave output which is fed to a comparator CP to produce the square wave output. The square wave is also fed via limiter D 1 , D 2  and amplifier A 2  to provide the input to integrator A 1 . In a modification Fig. 5A (not shown), the amplifier A 2  is replaced by another "commutator" similar to commutator 3. In further modifications of the generator G T , Figs. 6A, 7 (not shown) to square wave from the comparator is used to control the switches of an inverter which provides the square wave input to the integrator. Commutator.-Comparator CP 12  produces an output which is either positive or negative, depending on the level of the output from A 3  relative to the reference level + V A . In one state of the comparator output S 1  is open, S 2  connects one input of the amplifier A 4  to earth and the output from A 3  is fed via R and A 4  to the output, A 4  giving a gain of - 1. In the other state of the comparator output S 1  is closed and S 2  open to make the gain of A 4  + 1. A similar operation takes place when the output from A 3  passes the reference -V A , comparator CP 13  providing the control for switches S 1 , S 2 .
Patent GB-245382-A (GB)
Title: Improvements in cases for holding spools or bobbins
IPC: A47F1/12
Filed: 1925-09-08
Abstract: 245,382. Zwicky & Co. July 20, 1925, [Convention date]. Showcases. - In a showcase for bobbins, &c., having compartments arranged in rows and sloping towards the front, each compartment is provided with a feed roller i and with hooks to receive and retain the lowermost bobbin. The feed roller, which is of heavy material and of approximately the same diameter as the bobbin d, is provided with a flat tongue k which projects forwardly to support one or more bobbins. A measuring-bar g having graduations corresponding to the diameter of the bobbins is provided for ascertaining the number of bobbins in any compartment.
Patent GB-1103863-A (GB)
Title: Improvements in or relating to metal building structures
IPC: B60H1/00
Filed: 1964-05-30
Abstract: 1,103,863. Cooling buildings. G. A. NIBLETT. 28 May, 1965 [30 May, 1964], No. 22491/64. Heading F4U. The metal frame of a building structure is formed by tubular metal members 1, 2 providing interconnected paths for liquid contained by the members, so that heat applied locally to a part of the structure will produce convection currents to cause cool liquid to flow to the heated part. The columns 1 and beams 2 are formed of hollow girders welded together, apertures 4 in the columns allowing flow of water into the beams. Inlet and outlet cooks for the water and vents for escape of air are provided. The columns and beams may be connected by welding their ends to coupling devices having spigot-like arms. The inside and outside surfaces of the metal members may be coated or painted to resist corrosion.
Patent GB-735086-A (GB)
Title: Process for the production of a citrate-soluble fertilizer containing mainly secondary calcium phosphate
IPC: C05B11/04
Filed: 1953-08-17
Abstract: Citrate-soluble secondary calcium phosphate is produced by adding to a mineral acid (e.g. nitric or hydrochloric acid) solution of a raw phosphate at 20-50 DEG  C., an alkaline precipitating agent in quantity sufficient to precipitate substantially the whole of the fluorine and other impurities but insufficient to precipitate a substantial amount of secondary calcium phosphate, heating the mixture to a temperature of at least 75 DEG  C., preferably to about 95 DEG  C., separating the precipitate if desired, cooling the mixture to 20-50 DEG  C. and precipitating the secondary calcium phosphate by adding a further quantity of alkaline precipitating agent.  Precipitating agents referred to are ammonia, which may be used in a solution of ammonium nitrate if desired, milk of lime and soda lye.  If the ammonium nitrate liquor is used, it may be recovered and re-used after filtration of the secondary calcium phosphate, residual calcium nitrate dissolved therein being removed by precipitation with ammonium carbonate.  Heating and cooling may be effected by means of heat exchangers.  If in the production of the initial phosphate solution the mineral acid used was sufficient to liberate all the phosphoric and other acids, and to combine with all the bases, 35-50 per cent of the total amount of precipitating agent is used in the first stage.  In the examples, phosphate rock is dissolved in nitric acid, fluorine &c. precipitated at 40 DEG  C. with ammonia/ammonium nitrate solution, the mixture warmed to 95 DEG C., then cooled and the second precipitation with said solution conducted at 40 DEG  C., to a pH of 4.
Patent GB-443714-A (GB)
Title: Improvements in or relating to studs for sports shoes or boots
IPC: A43C15/16
Filed: 1934-08-03
Abstract: 443,714. Studs for boots and shoes. LOTUS, Ltd., and CHAPMAN, A. R., 193, Sandon Road, Stafford. Aug. 3, 1934, No. 22691. [Class 17 (iii)] Studs B, Fig. 4, for boots and shoes, especially for sports wear, each have a screw threaded shank B which screws into an inner bore in a cylindrical socket member A with a flange A<2> at the outerside of the sole and with the inner end of the socket bevelled to an edge A<4> and slit or cut along part of its length as at A<3> so that when it is turned over or clenched to secure the socket to the sole its edge A' will be pressed into the sole. The outer face of the flange A<2> which is of large diameter, is provided with projections A<5> fins or the like to assist in anchoring the socket against rotation. The outer face of the socket A may be bevelled so as to provide a large metal to metal contact with a correspondingly shaped part on the detachable spiked stud C, Fig. 8, which may be secured by a separate screw D.
Patent GB-387708-A (GB)
Title: Improvements in or relating to collars for shirts and like garments
IPC: A41B1/16
Filed: 1931-08-11
Abstract: 387,708. Shirt collars. ADESS & SON, Ltd., 7, King Street, Dunedin, Otago, New Zealand. Aug. 11, 1931, No. 22697. Convention date, Aug. 11, 1930. [Class 141.] Shirt collars are made to assume a sports shape or an ordinary double collar at the will of the wearer, the band of the collar being suitably quilted or otherwise stiffened in certain of the layers not exposed to view. In the construction shown in perspective in Fig. 1 and in section in Fig. 3, the neckband 2 is multiple layered with inner layers 4 quilted together. A tab 7 and button 8 are used for maintaining the collar flaps in position when worn as shown in the drawing, but the tab when not in use can be folded out of sight and retained in this position by a button 9.