baber/WOPTO huggingface dataset:
Patent GB-343003-A (GB)
Title: Acid-proof alloys
IPC: C22C38/14
Filed: 1929-09-05
Abstract: Acid-proof alloys consist of iron with silicon not exceeding 20 per cent and titanium not exceeding 25 per cent, in proportions of from 1 to 20 parts of titanium for every 8 parts of silicon.  A preferred alloy contains 16 per cent of silicon and 2-4 per cent of titanium. The alloys may be made by melting down in a cupola or electric furnace, a homogeneous product being obtained without remelting.
Patent GB-383698-A (GB)
Title: Improvements in and relating to sound reproducing instruments, principally loud speakers
IPC: H04R7/16
Filed: 1931-09-29
Abstract: 383,698. Loud-speakers. LAWRENCE, F. H., 36, Earlsthorpe Road, London. Sept. 29, 1931, No. 27089. [Class 40 (iv).] Relates to loud-speakers and the like of the kind having a large diaphragm supported by spiders. According to the invention, the diaphragm, which has a free edge, is so supported by means of one or more spiders mounted on a tube or rod that it may be adjusted transversely to its axis. With a moving-coil loudspeaker, there is obtained the advantage that the coil can be accurately centred in the air gap. The application of the invention to an instrument of this type is shown in Fig. 1. The diaphragm b, which is secured to the coil former bl as usual, is supported by two spiders d, e of cardboard &c., each of which may be formed of an inner and outer ring joined together by thin flexible arms. The inner rings are mounted on a tube f of cardboard or ebonite &c., surrounding a rod c which projects. from the central pole a<1> of the magnet. The tube f is clamped in position by means of washers y pressed against its ends by nuts h, this securing device allowing of lateral adjustment. Alternatively, each spider may consist of a single ring only, with radial arms attached directly to the diaphragm, .the ring being mounted on the tube f. The free edge of the' diaphragm, which may be stiffened by a thin cardboard ring j, is located in an annular groove k formed around the large hole in the baffleboard k<2>. Fig. 3 shows a reed-driven loudspeaker to which the invention is applied. In this case, the tube l supporting the spiders d, e is secured to a disc l<1> which is adjustably mounted by bolts n on a cross-bar m carried by the baffle k2. A trough-shaped diaphragm o is provided in the loud-speaker shown in Fig. 5, the diaphragm being impulsed at two points, each at one end of the apex line, by two driving units p acting simultaneously. The supporting spiders are arranged as in either of the constructions described above. The diaphragm may be reinforced by strips q.
Patent GB-1175449-A (GB)
Title: Crucible-Free Zone-by-Zone Melting Operations
IPC: C30B13/28
Filed: 1967-06-12
Abstract: 1,175,449. Floating zone-melting. SIEMENS A.G, 12 June, 1967 [15 June, 1966], No. 27106/67. Heading B1S. In the floating zone-melting of a silicon rod attached to a seed using an induction coil, the coil is eccentrically disposed with respect to the supply rod and the recrystallized rod for at least part of the operation. The coil may be reciprocated by rectilinear or circular movement of its axis at e.g. 9 alternations per minute between maximum and minimum eccentricity. The speed of passage of the molten zone may be 2 mm/min. The recrystallized rod may be rotated at 20 rpm. The cross-sectional area of the seed may be up to one tenth that of the supply rod. In steady operation, the diameter of both the supply and recrystallized rods may be larger than that of the coil. The supply and recrystallized rods may be on the same axis (Fig. 2) or may be offset (Fig. 5).
Patent GB-781420-A (GB)
Title: Improvements in or relating to the production of polymers
IPC: C08F240/00
Filed: 1953-07-03
Abstract: Hydrocarbon polymers, particularly dicyclopentadiene and also liquid polymers are produced by subjecting a cyclopentadiene-containing cracked hydrocarbon fraction of petroleum origin having an initial boiling-point in the range of 15-30 DEG  C. and a final boiling-point in the range of 50-70 DEG  C. to a preliminary heat treatment at 70-120 DEG  C., while maintaining the fraction in the liquid phase so that the cyclopentadiene is converted to its dimer and thereafter distilling the product to remove the dimer, and then subjecting the cyclopentadiene free cracked hydrocarbon fraction obtained overhead to a heat treatment at a temperature above the temperature of the preliminary heat treatment, and at superatmospheric pressure, and distilling the product to obtain separately a gasoline fraction and, boiling above said gasoline fraction, a hydrocarbon polymer fraction. The hydrocarbon fraction is preferably obtained by steam cracking a naphtha cut boiling in the range of 90-250 DEG  C. at a pressure of atmospheric to 200 pounds per square inch.  In an example, a 20-58 DEG  C. cut from a steam cracked gasoline was heated to 100 DEG  C. for 8 hours to dimerize the cyclopentadiene, the product was distilled, leaving the dicyclopentadiene as bottoms, and the overhead product being subjected to further heat treatment at 150-160 DEG  C. for 6 hours at 290 lb. per square inch.  The product was distilled at atmospheric pressure to recover unchanged gasoline as overheads, the bottoms being further distilled under reduced pressure to separate distilled polymer and resinous polymer fractions.
Patent GB-247884-A (GB)
Title: A device for effecting self-diagnosis of the eye
IPC: A61B3/12
Filed: 1925-10-30
Abstract: 247,884. Kronenberger, B. Oct. 30, 1925. Eye-examining apparatus. - Apparatus for self diagnosis of the eye comprises magnifying and reflecting surfaces a, b mounted on each side of a frame c provided with a handle d. Pointers f, pivotally mounted on rings e in the frame c enable the observers to indicate relatively to the annular rim changes noticeable in the eye. The surfaces may comprise concave mirrors or plane mirrors with convex lenses situated before them. Alternatively the two magnifying and reflecting surfaces may be mounted side by side, separated by an interval equal to the pupillary distance.
Patent GB-172450-A (GB)
Title: A new or improved device for sharpening scissors and the like
IPC: B24D15/06
Filed: 1920-09-24
Abstract: 172,450. Robinson, A., and Wakefield, J. Sept. 24, 1920. Tools. - A sharpener for scissors &c. comprises a cylindrical or polygonal sharpening-stone &c. d rotatably mounted in a casing a, which is provided with substantially tangential guides c for the blade e to be sharpened. The casing has end caps a', through one of which may pass a spindle f for rotating the stone d, or its equivalent, to bring a fresh grinding-surface into operation.
Patent GB-787559-A (GB)
Title: Improvements in the manufacture and treatment of artificial filamentary materials
Inventor: SOWTER PERCY FREDERICK COMBE
IPC: D01D10/04
Filed: 1953-10-05
Abstract: <PICT:0787559/IV (a)/1> In wet-spinning wherein the filaments are drawn up and out of a narrow tube containing liquid, the liquid is stripped from the filaments as they emerge from the tube by a conical wire spiral coaxial with the tube, the diameter of the base of the cone being equal to or greater than the external diameter of the tube.  The diameter of the hole at the apex of the conical wire spiral is preferably 0.05-0.15 inch and the spacing between adjacent turns is also 0.05-0.15 inch whereby liquid runs mainly down the outside of the spiral.  Fig. 2 shows the top of the tube 7 from which the filaments are drawn through the conical wire spiral 10. The invention is of particular value in the manufacture of cellulose acetate by extruding an acetone solution of cellulose acetate into an aqueous solution of diethylene glycol diacetate or of acetone, but it may be used in other wet-spinning processes, e.g. in the spinning of acetic acid solutions of cellulose acetate into aqueous acetic acid containing a high concentration of a salt such as an alkali metal acetate.  Specifications 695,559, 720,187, 787,556, 787,557, 787,558, 787,560, 787,561 and 787,562 are referred to.
Patent GB-151847-A (GB)
Title: Improvements in and relating to detachable wheel hubs for motor cycles and the like
IPC: B62K25/02
Filed: 1919-11-06
Abstract: 151,847. Tessier, S. T. Nov. 6, 1919. Wheels, facilitating detachment of.-A hinged piece) a<2> takes the place of the usual lower jaw of one of the rear forks b of a motor-cycle so that when the spindle d has been withdrawn, the piece a<2> can be swung out of the way in order to allow ample clearance for the removal of the hub. The hinged part also forms a distance-piece between its own fork and the adjacent end of the hub. Whilst the spindle is being withdrawn, the hub is temporarily held in position by the engagement of dogs q<1>, Fig. 3, between the recesses on a driving-disk p, Fig. 2, secured to the sprocket-wheel and brake drum h. The hinged piece a<a>, being also a packing-piece, allows of the axial movement of the hub necessary to disengage it from the driving-disk p. The part a<2> is normally held in position against the fixed upper jaw d<1> of the fork by means of a yoke d<1> on the spindle. A tightening- nut d* holds the whole firmly between the two forks n, b.
Patent GB-446169-A (GB)
Title: Improvements in or relating to ramming and the like machines
IPC: E01C19/34
Filed: 1934-09-24
Abstract: 446,169. Road ramming machines. SCHIEFERSTEIN, G. H., 105, Reichsstrasse, Charlottenburg, Berlin. Sept. 24, 1934, No. 27427. Convention date, Sept. 23, 1933. [Class 107] The elastically constrained ram of a roadramming machine is energized by a stationary driving device 4 operating in tune with the natural frequency of the ram and acting mainly or exclusively in a vertical direction, means, such as abutments 24 and coacting members 23, being provided to prevent overstressing of the elastic means when the machine is idling. As shown, the machine may carry two rams 1, each suspended by undamped springs 2 from a crosshead 3 which can be moved vertically within the machine frame 19 by screws 5 actuated by hand wheels 8. An electric motor 10 is supported on the frame 19 and is connected by links 11, 12, and chain-and-sprocket gearing 13 ... 18 to the driving cam 4. This cam operates the rams by way of double semielliptical leaf springs 20. Inharmonic oscillations are produced by rolling-contact members 21, 22, which curtail the effective length of the springs 20 as the flexion increases or, alternatively, by rubber buffers mounted within the springs 2.
Patent GB-1508768-A (GB)
Title: Structural units
IPC: E04C3/00
Filed: 1975-03-06
Abstract: 1508768 Substructures; beams BHAGAT ENG CO PRIVATE Ltd 6 March 1975 27427/77 Divided out of 1508139 Heading E1K [Also in Division F2] A substructure comprises four bars 18, 19, 24, 25 joined to form a rectangular frame, which may include diagonal bracing 21, 22, and has at each corner of the assembled frame at least one joint formation provided at least at one end of each of the four bars, the joint formations (Figs. 5-7, not shown) being as claimed and described in the Parent Specification whereby they interfit in a complementary manner with identical joint formations on another substructure.
Patent GB-166065-A (GB)
Title: Improvements in spring forks for cycles and the like
IPC: B62K25/24
Filed: 1920-09-27
Abstract: 166,065. Marks, E. C. R., (Fabrique Nationale d'Armes de Guerre, Soc. Anon.). Sept. 27, 1920. Spring devices.- A link - mounted spring front fork for motor-cycles &c. is characterized by a helical compression spring, which at its upper end is pivoted to the upper part of the steering - head or frame and at its lower end is pivoted to the lower links of the mechanism at a point between their ends in such manner that a point between their ends in such manner that shock is absorbed by the compression of the spring. As shown, the spring 5, enclosed in a casing 9, is fixed to the upper part of the frame member 2 by a stem 15 pivoted between lugs and at its lower end the spring is attached to a member 7 which is pivoted at 8 to the links 3<1>.
Patent GB-519337-A (GB)
Title: Improvements in or relating to control surfaces for air and water craft
IPC: B64C9/10
Filed: 1938-09-20
Abstract: 519,337. Rudders and elevators. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., and MEREDITH, F. W. Sept. 20, 1938, No. 27458. [Classes 4 and 114] A rudder &c. for air or water craft comprises a main body 10 mounted on a fixed hinge post 11 in such a position that in some positions at least it is overbalanced as regards the fluid pressure: To compensate this, a flap 13 is pivotally mounted at the trailing edge, and.is actuated by the movement of the main rudder &c. through a chain 19 and a pivot 15 on an arm 14 having a pin and slot connection with a member 23 which does not share the rudder motion and is only moved, by a screw 22, for trimming. The flap may be located at the fore end of the rudder, and otherwise operated.
Patent GB-904538-A (GB)
Title: Television pickup apparatus
IPC: H01J31/38
Filed: 1960-08-09
Abstract: 904,538. Television pick-up tubes. FERNSEH G.m.b.H. Aug. 9, 1960 [Aug. 28, 1959], No. 27560/60. Class 39 (1). [Also in Group XL (c)] A spring contact 6 co-operating with the annular signal-output contact 1 of a silicon pick-up tube is positioned in the plane of symmetry separating the line deflection coils 3, 3<SP>1</SP> so that spurious signals capacitively induced in contact 6 during line fly-back periods are reduced to a minimum. The contact 6 is secured in a mounting 7 which carries the tube envelope. The contact may be provided with a finely adjustable aligning device and, if desired, a second contact (also connected to output lead 5) diametrically opposed to contact 6 may also be employed.
Patent GB-361473-A (GB)
Title: An improved bathing cap
IPC: A42B1/12
Filed: 1930-09-16
Abstract: 361,473. Bathing caps. SYMONS, G. H. F., 66, Fore Street, Salcombe, Devon. Sept. 16, 1930, No. 27588. [Class 63.] In a bathing cap, an inflatable chamber 2 encircling the head opening is formed by a strip of material secured at its edges to the inner side of the cap. The fore and rear parts of the cham ber are of increased width Preferably, the inflatable cham ber extends around the chin strap, and is there provided with an inflation tube. 6 normally closed by a pin 7. In a modification, the chin strap is omitted and the inflation tube is house( in the rear of the cap.
Patent GB-1204162-A (GB)
Title: Instrument representing mossbauer spectra
Inventor: MEISEL WERNER
IPC: G21K1/12
Filed: 1967-08-16
Abstract: 1,204,162. Mossbaver spectrometer. CARL ZEISS JENA VEB. 16 Aug., 1967, No. 27801/67. Heading H5R.  An apparatus for recording the recoilless secondary emission of radiation from a sample -its Mossbauer spectrum-comprises at least two detectors 5-5<SP>1</SP> for recording the intensity of emitted radiation, an absorber or scattering means 4 or 4<SP>1</SP> in the path of the radiation passing to each detector a single radiation source 2 displaceable towards and away from the absorber or scattering means, and a motor 3 for moving the source, the arrangement being such the line connecting each detector, absorber or scattering means and the radiation source encloses an angle with the direction of movement of the source of radiation. 6, 6<SP>1</SP>, 7, 7<SP>1</SP>, 8 and 8<SP>1</SP> represent the amplifier, analyser and counter of the respective detectors, 9, 10, 11, 12, 13, 14 ,15 and 16 representing a high voltage power supply, a differential amplifier, an output amplifier, a function generator, switchgear, electronic clock, gate control and discriminator for the signals from the two counters.
Patent GB-1071351-A (GB)
Title: Improvements in and relating to glass articles
IPC: C03C21/00
Filed: 1964-07-07
Abstract: A lithia-soda-alumina-silica glass article containing from 5 to 25% by weight of phosphorous pentoxide contains in a surface zone at least one alkali metal of larger atomic diameter than lithium so that the surface zone is in compression. The effect is produced by immersing the glass article in a molten bath of an alkali-metal salt of greater atomic diameter than lithium, e.g. sodium, at a temperature below the strain point but in the range 600-1100 DEG  F. for a time of from 1 minute to several hours.  The article is preferably pre-heated to within 50 DEG  F. of the temperature of the salt bath.  The alkali-metal salts may be the sulphates, nitrates, chlorides, fluorides or phosphates. Alternatively instead of immersion the glass article may be sprayed with an ion exchange coating or have a paste (e.g. 60-90% alkali-metal salt and 40-10% inert thixotropic diluent such as a clay) contacting the surfaces. The article may be successively treated with salts of increasing atomic diameter.  The glass article may have a composition based on 2-15% Li2O; 2-20% Na2O and/or K2O; 5.25% P2O5; 10-35% Al2O3; 30-60% SiO2; 0-12% ZnO; 0-8% MgO by weight.  The mole ratio of lithia to soda is in the range 0.21: 1 to 15.6: 1 and of lithia to potassia 0.31: 1 to 23.0: 1.  Other additions may be up to 6% TiO2; 2% each of CaO, BaO, B2O3, SrO, PbO; 1/2 % Fe2O3, CoO, NiO Se and traces of arsenious oxide, antimony oxide, and the chloride, sulphate and fluoride of sodium. Several glass compositions not containing phosphorous pentoxide are also referred to.  One of these, glass "W," has the composition SiO2 60.61%; Al2O3 29.66%; Li2O 5.63%; MgO 4.11% by weight.  Other glasses (Nos. 1-3) in comparative examples are a conventional plate and sheet glass and a lithia-soda-alumina-silica glass.  Their compositions are in the range SiO2 65.16-73%; Al2O3 0.2 to 20.82%; Na2O 5.02 to 13.2%; Li2O 3.99%; CaO 8.5 to 11.7%; MgO 2.5-4.1% and traces of other minor ingredients.  Reference has been directed by the Comptroller to Specifications 966,731, 966,733 and 966,734.
Patent GB-903322-A (GB)
Title: Process for the production of n-dialkyl and n-diaralkyl phosphoryl homocystein thiolactones
IPC: A61Q17/04
Filed: 1960-08-11
Abstract: The invention comprises N-dialkyl and N-diaralkyl phosphoryl homocystein thiolactones of the general formula: <FORM:0903322/IV (b)/1> in which R1 and R2 are alkyl or aralkyl radicals. They may be obtained by reacting homocystein thiolactone, or a salt thereof, e.g. its hydrohalide, with a phosphoryl halide of the formula (R1O)(R2O)P(O)X in which X is a halogen atom, preferably chlorine, in the presence of a tertiary amine as acid acceptor.  The reaction is preferably carried out in the presence of a solvent or diluent, especially one containing a hydroxyl group, e.g. an alcohol such as methanol or ethanol. Preferred reaction temperatures are from 0 to 80 DEG C. and it is particularly advantageous to work in an inert gas atmosphere, e.g. nitrogen.  The thiolactone ring in the product can easily be split open by the action of weak alkalis to form the corresponding N-dialkyl (or diaralkyl) phosphoryl homocysteins. Examples are given for the production of products of the above formula in which R1 and R2 are each ethyl and isopropyl respectively. The products have medicinal properties, e.g. in liver disorders, and have a protective effect against radiation.
Patent GB-1044045-A (GB)
Title: Process for the preparation of fluorochloromethanes
IPC: C07C17/10
Filed: 1963-07-15
Abstract: Fluorochloromethanes are obtained by the catalytic reaction between methane, chlorine and hydrogen fluoride in two different zones, one operated at 350-500 DEG  C., where mainly chlorination occurs, and the other operated at 200-350 DEG  C. where mainly fluorination occurs, either zone coming first; in the presence of a gaseous recycling mixture comprising one or more chlorinated or chlorofluorinated compounds which are intermediates, main products or by-products.  The higher temperature zone may contain active carbon and/or a halide of a metal of variable valency as catalyst, and the lower temperature zone may contain a metal oxide or salt as catalyst. Specified products for recycle are CCl4, CHCl3, CH2Cl2, CH3Cl, CFCl3, CF2Cl2, CF3Cl, CHFCl2, CHF2Cl, C2Cl4, C2Cl6 and C2HCl3.  The main recovered products in examples are CF2Cl2 and CFCl3.
Patent GB-426800-A (GB)
Title: Improvements in the manufacture of cut weft pile fabrics and in such fabrics
IPC: D03D39/10
Filed: 1933-10-11
Abstract: 426,800. Weft pile fabrics. MELLODEW & CO., Ltd., T., and MELLODEW, W., Moorside Mills, Oldham. Oct. 11, 1933, Nos. 28018/33 and 32495/34. [Class 142 (iv)] In velvets with fast or lashed pile, the pilepick binding warp threads F and 1, 2, 3, 5, 6, 7, 9, 10, 11 are arranged in groups of three or more and are finer than the intermediate warp threads C, for example, three times as fine. The reed may be twice as fine as usual, three fine ends of 2À90 cotton being drawn into one reed space, and one coarse end C, and 4, 8, 12 in the next, as shown, or a coarse and fine end may be drawn into each reed space. Or the reed may be of the usual fineness, the ends being drawn in as shown in Fig. 4. Weft of 14 counts may be used. Cotton, artificial silk or mixtures in combination or alternation may be used for the weft and warp.
Patent GB-409210-A (GB)
Title: Improvements in and relating to heating stoves
IPC: A01K39/02
Filed: 1933-10-11
Abstract: 409,210. Oil stoves. PHELAN, M. F., Cleave Barton, Northam, North Devon. Oct. 11, 1933, No. 28112. [Classes 75 (i) and 126.] An oil stove particularly suitable for use by poultry breeders comprises an oil container a having on its upper surface a number of raised portions a<2> formed with apertures to receive brass or like tubes b containing wicks d surrounded by twisted wires e. The tubes b have perforated bottoms b<2> to allow the oil to reach the wick and are provided with sloping flanges b<3> formed with depressions b<4> which rest on the top of the container and allow air to pass into the container around the tubes. The flames may be adjusted by raising or lowering the wires e in the tubes b. An apertured cover f preferably formed with one or more annular depressions f fits over the container a.
Patent GB-538116-A (GB)
Title: Improvements in or relating to the separation of solid materials of different specific gravities
IPC: B03B5/40
Filed: 1939-10-18
Abstract: 538,116. Wet-separating. TROSTLER, F., and HUNTINGTON, HEBERLEIN & CO., Ltd. Oct. 18, 1939, No. 28143. [Class 82 (ii)] A process for the separation of solid materials of different specific gravities according to the sink - and - float - principle comprises the employment of a solution or suspension as the separating medium and the production in this medium, by the application of pulsations or vibrations of restricted magnitude, of a downward force or pull operative on the particles of the heavier or "sink" component of the materials to provide for those particles a falling energy just substantially sufficient in all parts of the medium to overcome the viscous resistance. The materials and solution may be fed at or near the upper surface of the body of the solution &c. The separation is carried out in a vessel a supported on a frame d and provided with a tapered bottom e to the cylindrical part f of which is secured a diaphragm g formed as an annular rubber body of inverted U-section. Fitted to the diaphragm f is a hutch h having an outlet i controlled by a gate or slide k and secured to a connecting rod b which passes through a bearing m and is coupled by a pivot n to a crank rod o embracing at its lower end a crank pin p carried by a disc mounted on a shaft r driven by a chain t passing four sprockets s, the upper of which is mounted on a driven shaft u. The frequency of the vibrations &c. set up by the piston &c. may be varied and alternatively the diaphragm may be operated by a vibrating fly wheel or any other suitable means. The apparatus may be used for the concentration of ores or the cleaning of coal. Specification 486,771 is referred to.