baber/WOPTO huggingface dataset:
Patent GB-867912-A (GB)
Title: Display apparatus
IPC: A47F5/01
Filed: 1957-02-07
Abstract: 867,912. Display stands. SHANKLAND, G. A. Aug. 23, 1957 [Feb. 7, 1957], No. 4312/57. Class 3(2) A display stand comprises a base member 1 of expanded metal having a number of brackets 3a, 3b removably secured thereto, legs 6, 7, a supporting strut 8 and a plate 10 for receiving a placard 11.
Patent GB-158887-A (GB)
Title: Improvements in or relating to the treatment of copper-nickel matte
IPC: C22B15/00
Filed: 1921-02-07
Abstract: A process for the treatment of nickel-copper matte comprises converting the matte until the greater part of the nickel is reduced to metal, treating a portion of the matte with acid in the presence of air, precipitating copper from the solution by means of another portion of the matte, recovering the nickel from the remaining solution, roasting the undissolved residues of the dissolving and cementation processes, leaching the resulting copper and nickel oxides with acid, reducing the undissolved oxides to metal and recovering the precious metals therefrom. Specification 121,591 is referred to.
Patent GB-302084-A (GB)
Title: Improvements relating to vacuum flasks
IPC: A47J41/00
Filed: 1928-02-11
Abstract: 302,084. Oka, K. Feb. 11, 1928. Stands.-A vacuumjacketed vessel for medical and other uses is supported for discharge of its liquid contents by a handle 11 attached to rods 7 movable through pockets 5 of the casing 2, the weight being taken by springs 6 and the liquid contents being measured by an index 4, carried by a ring 10 attached to the rods 7, and a scale 3 on the casing. The vessel has an opening at each end and the plug 13 at the lower end is connected to a glass discharge cock 26 having an air vent tube 17 and a nipple guard 24 around the liquid discharge port.
Patent GB-397122-A (GB)
Title: Improved dip-stick gauges for liquids
IPC: G01F23/04
Filed: 1932-02-15
Abstract: 397,122. Indicating liquid-levels. PAINE, H. SCOTT-, The Shipyard, Hythe, Southampton.' Feb. 15, 1932, No. 4454. [Class 123 (i).] A dip-stick gauge consists of three rods 10 connected by pivoted links 11 and carrying a series of slightly dished discs 12, with a weight 13 at the bottom and a ring 14 at the top. Those discs which have been submerged retain some of the liquid, thus facilitating the reading of the level. For viscous liquids the discs need not be dished. Specification 377,306 is referred to. According to the Provisional Specification, the discs may be replaced by notches cut into the rod.
Patent GB-719802-A (GB)
Title: Improvements in or relating to the electrodeposition of tungsten alloys
Inventor: EMERY RONALD ST JOHN
IPC: C25D3/56
Filed: 1952-02-21
Abstract: 719,802. Electrodeposition of tungsten alloys. G. K. N. GROUP SERVICES, Ltd. Feb. 23, 1953, [Feb. 21, 1952.] No. 4564/52. Class 41. A method of electrodeposlting a tungsten alloy comprises making the article to be coated the cathode in a plating bath normally used to deposit the metal to be alloyed with tungsten, the solution including silico tungstic acid H 8 [Si(W 2 O 7 ) 6 ] in a concentration between 5 and 30 grams per litre, the anode being composed of the alloying metal, tungsten, or of a metal, such as lead, which is insoluble in the plating solution. The alloying metal may be nickel, cobalt or iron. The plating solution preferably contains ammonium sulphate.
Patent GB-609117-A (GB)
Title: Improvements in or relating to wall structures
IPC: E04B2/44
Filed: 1947-03-13
Abstract: 609,117. Walls; building blocks. MURRAY, H. March 13, 1947, No. 4580/46. [Classes 20(iv) and 87(i)] In a wall built up of quoin and stretcher blocks, the length of the longer outer face of a quoin block c is three times, and that of a stretcher block a four times, that of the shorter side of a quoin block which is equal to the thickness of a block plus the width of the wall cavity. The quoin blocks serve to close the wall cavity at door and window openings z. Wall-junction blocks d, fractional quoin and stretcher blocks, bevel-ended eaves blocks and curved blocks are also provided. The blocks are provided with circular holes b and corresponding semi-circular recesses b<1> to receive cement. Grooves b<3> are provided for wall ties h. Solid coping blocks having depending metal hooks to engage the holes b are also provided.
Patent GB-707326-A (GB)
Title: Improvements in or relating to folding chairs
IPC: A47C4/34
Filed: 1952-02-21
Abstract: 707,326. Seats. WIELD, C. H. T. Aug. 5, 1952 [Feb. 21, 1952], No. 4580/52. Class 52(2) A folding chair having a fabric seat and back comprises at each side a pair of pivoted side members 1, 2 or 3, 4, the lower ends of members 1, 3 resting on the ground while the rear ends of members 2, 4 are supported by third member 8 or 9 pivoted towards the upper ends of members 1, 3. Preferably the ends of members 2, 4 are provided with pivots 12, 13 slidable in slots 10, 11 in the members 8, 9. In addition crossed members 14, 15 and 16, 17 are provided as shown so that the chair may be folded into a bundle, a strap 21 being provided to secure it. In a modification the slots may be formed in the members 2, 4.
Patent GB-467352-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B13/00
Filed: 1936-02-15
Abstract: 467,352. Brushes. LUSON, W. H., and LUSON & SONS, Ltd., A. Feb. 15, 1936, No. 4666. [Class 19] A circular brush, Fig. 2, comprises metal holding plates 10, 13 formed with a plurality of punched cap metal fangs 11, 14. The plate 10 is also shouldered at 12. A mass of wire or other bristles 16 are looped about a ring 17 located between the shoulder 12 and fangs 11. The plates are pressed together to embed the fangs in the bristles, the fangs being of such a length that the ends are turned over as in Fig. 4, to interlock in the mass of bristles. The mounting plates are retained in position solely by the fangs interlocking with the bristles. A plurality of such brushes may be clamped on a mandrel to form a cylindrical brush. British Specification 224,464, [Class 19], and U.S.A. Specification 2,002,370 are referred to.
Patent GB-342162-A (GB)
Title: An improved carton for safety razor blades and similar articles
IPC: B65D75/14
Filed: 1930-02-12
Abstract: 342,162. Cartons made from special blanks. MONEY, G. T., South Creake, Fakenham, Norfolk. Feb. 12, 1930, No. 4686. [Class 18.] A carton for safety-razor blades and similar articles is made from a blank of the shape shown in the Figure. The blades or similar articles are placed in the centre space G, and the flap F is folded at G2 and F1 to lie on top of them. The flap E is then folded at E1, G1 to lie on top of the flap F, and the small flaps, A1, B1, C1, C2 are folded around the sides of the contents. The small flaps A, B are folded over on to the flap D which is then folded at G3, D1 to lie on top of the flap E. The remaining flap C is folded at G4, C3 and is inserted between the flap D and the small flaps A, B. An adhesive seal is placed across the thumb hole in the flap D, connecting the flaps C, D, and closing the package. The carton thus formed has at least two thicknesses of card protecting the edges of the blade and has five thicknesses of card parallel to the blades and resisting crushing.
Patent GB-1359884-A (GB)
Title: Fertilizer
IPC: C05C5/00
Filed: 1972-02-09
Abstract: 1359884 Fertilizer compositions containing urea and magnesium compounds FISONS Ltd 9 Feb 1972 [15 Feb 1971] 4689/71 Heading C1B An aqueous slurry in which urea and a magnesium salt or compound form a major part by weight of the solute and the solvent water is provided by the water of crystallization and/or hydration of the magnesium salt or compound, may be obtained by forming an intimate mixture of solid urea and solid magnesium salt or compound containing water of crystallization and/or hydration and allowing the mixture to develop a liquid phase. A concentrated aqueous solution in which urea and a magnesium salt or compound form a major part by weight of the solute and the solvent water is provided in part by the water of crystallization and/or hydration of the magnesium salt or compound and also by added water, the amount of added water being less than 90% by weight of the dry solute, may be obtained by incorporating up to 90% by weight of the dry solute of added water into a slurry as specified above. The magnesium salt may be the sulphate, nitrate, tetraborate or a double salt such as potassium magnesium sulphate. The slurry or concentrated solution finds use as a fertilizer concentrate and may be diluted with water and may contain minor proportions of potassium and/or ammonium salts of nitric, sulphuric and/ or phosphoric acid, potassium chloride, copper sulphate, ferrous or ferric sulphate, sodium tetraborate and potassium molybdate.
Patent GB-1204586-A (GB)
Title: Manufacture of permanent magnets
Inventor: SHAW STUART WALTER KER
IPC: C22C1/02
Filed: 1968-01-30
Abstract: 1,204,586. Making alloys. INTERNATIONAL NICKEL Ltd. Jan.22, 1969 [Jan. 30, 1968], No.4799/68. Headings C7A and C7D. An ingot with a columnar crystal structure is produced of an alloy consisting of Al 5-11% Ni 7-25% Co 20-55% Ti 1-11% Cu 0-10% Nb 0-4% Fe (at least 13%) balance, apart from S, C and impurities, by forming a C-containing deoxidised melt of the Fe, Ni, Co and any Cu and Nb from a base charge (of which part may be scrap from a previous melt), but without Al or Ti (except any introduced as scrap), adding the Al and Ti (or remaining Al and Ti) and S to the melt, and casting the melt into a mould with a bottom chill. If the base charge is formed wholly of virgin raw materials, deoxidation is effected with e.g. Al or Si, and C is preferably added after deoxidation and before the addition of the alloying element Al. If the base charge is partly of scrap, no special deoxidation will be necessary, while all C may be introduced by the scrap; otherwise, C is added to the base charge or melt. In the melt, C may range from 0À03-0À25% and S from 0À2-1À2%. Casting is preferably effected at 1550‹ -1700‹ C. into an exothermic mould. Permanent magnets may be made from the columnar portion of the ingot by solution heating (e.g. at 1220‹ C.), rapidly cooling (e.g. in oil), heating in a magnetic field (e.g. at 830‹ C.), and isothermally ageing (e.g. at 570‹ C.).
Patent GB-1402632-A (GB)
Title: Medical equipment
IPC: A61B18/02
Filed: 1972-02-02
Abstract: 1402632 Cryogenic probes WILKINSON SWORD Ltd 23 Nov 1972 [2 Feb 1972] 4864/ 72 Heading A5R A self-contained hand-held cryogenic probe comprises a compartment 5 for receiving a sealed capsule 46 containing compressed gas, the compartment being movable relatively to a body member 6 to cause a needle tube 10 carried thereby to move relatively to the capsule-seal to pierce it and convey the gas, via a manually-controlled valve, to a second tube 14 from which it escapes into an expansion chamber 16 adjacent to a probe-tip 26, the chamber and tip being thereby cooled by Joule-Thomson effect the relative diameters and fluid resistances of the tubes 10, 14 being such that there is negligible pressure-drop across the valve and that substantially all the fluid-expansion occurs at the end of the second tube. Lateral outlets 22, 24 at the body-end of the chamber 16 enable the expanded gas to vent to atmosphere. The valve comprises a transversely-bored plunger 40 mounted resiliently by elastomeric diaphragms 28, 30 so that manual depression on a button 38 aligns the bore 42 with the tubes 10, 14 to permit passage of the compressed gas.
Patent GB-633300-A (GB)
Title: Improvements in sacks or receptacles for handling materials
IPC: B65D30/00
Filed: 1948-02-19
Abstract: 633,300. Sacks and like large bags. BOOKEY, J. T. B., and SMITH, W. A. Feb. 19, 1948, No. 4935. [Class 94(ii)] A coal sack has, at a position where it rests upon the porter's shoulder, an outwardly concave part that is cushioned. As shown, the cushioning is provided by a pad 5 of sponge rubber having a concave surface facing outwardly. The pad fills an opening formed in the wall 1 of the sack and is held in place by inner and outer panels 6 and 7 respectively. The external surface of the sack is so patterned that downward slip off a man's back is checked while forward slip is facilitated. It is stated that the cushioning may be other suitable padding medium or it may be provided by a thickening of the wall of the sack.
Patent GB-573931-A (GB)
Title: Improvements in or relating to apparatus for controlling the pitch variations of propellers
IPC: B64C11/44
Filed: 1941-04-16
Abstract: 573,931. Screw propellers. RATIE, P. P., and RATIE, R. J. April 16, 1941, No 4976. Convention date, April 24, 1940. [Class 114] Variable-pitch mechanism for airscrews comprises three cams driven from a pitchchanging motor by planets mounted in a common cage and co - operating with separate suns, two of the cams being arranged to cut out the motor after the required pitch-changes in either direction under automatic control have occurred, and the third cam being manually adjustable to cut out the motor when the required pitch - change in either direction has occurred under manual control. The mechanism is associated with a pitch-indicator. In the apparatus shown in Figs. 1 and 2 the pitch-changing mechanism is driven by a motor 43 and is connected by gearing 4 ... 6 to a shaft 1 provided with a pointer 3 for a pitch-indicating dial 2. The shaft 1 is geared to a sun-wheel 11 co-operating with planets 12 which are mounted on a cage 13 and co-operate with a stationary annulus 14. The cage carries also planets 15, 16, 17 co-operating with rotary annuli 19, 21, 23 and suns 18, 20, 22. The sun 18 is connected to a knob 24 having a pointer 28 for the dial 2. The suns 20, 22 are geared to manually-adjustable shafts 35, 36. The annuli 21, 23 are provided with cams 21a, 23a for opening contacts 39, 40, and the annulus 19 is provided with surfaces 19a, 19b for closing contacts 37, 38. To initiate automatic control, contacts 46, 46a are closed by a key 53. If the propeller speed is too high, the governor closes contacts 44, 45, current flows through a relay 48 and a holding-contact 49 to the field-winding 43a, and the motor 43 rotates in pitch-increasing direction until the cam 21a opens the contacts 39. Similarly, if the propeller-speed is too low, the governor closes contacts 44, 45a, current flows through a relay 48a and a holding- contact 49a to the field-winding 43b, and the motor rotates in pitch-reducing direction until the cam 23a opens the contacts 40. The pitch is indicated by the pointer 3. Adjustment of the suns 20, 22 by means of the shafts 35, 36 determines the amplitude of the pitch-changes. To initiate manual control, contacts 51, 52 are closed by the key 53, and the knob 24 is turned in either direction to a position indicated by the pointer 28, the cam surface 19b or 19a closes the contact 37 or 38, and the motor rotates in pitch-increasing or reducing direction until the motor-circuits are broken. The manual-control can be associated with a " pre-selecting " system. The annuli and associated parts are preferably arranged side-by-side, thus enabling the whole apparatus to be mounted compactly in a casing. The dial 2 may form the front wall of the casing. In a modification, the motor is uni - directional and reversing - mechanism arranged in the pitch-changing mechanism.
Patent GB-1245212-A (GB)
Title: Method of modulating a laser beam and related apparatus
IPC: H01S5/14
Filed: 1970-02-03
Abstract: 1,245,212. Lasers. TURLABOR A.G. 3 Feb., 1970 [6 Feb., 1969], No. 5050/70. Heading H1C. The output of a diode laser generator is amplitude modulated by coupling a second resonator to the laser, the second resonator being tuned to the frequency f 10  for which the intensity of noise in the laser output is a maximum. The diode laser has an adjustable excitation current which allows f 10  to be altered. The second resonator may be optical, as shown in Fig. 3, or electrical, in which case it comprises an LC combination connected across the diode junction or both. In Fig. 3, the second resonator comprises the output mirror 3 of the diode 1, an adjustable concave mirror 10, and a lens 9 which compensates for divergence of the diode output. Adjustment of mirror 10 and the excitation current supplied by battery 6 are achieved respectively by screw 11 and rheostat, thus permitting the resonant frequency f 2  of the second resonator to be made equal to f 10 . The value of f 10 , which lies in the range 10<SP>7</SP>-10<SP>10</SP> Hz. may be plotted, Fig. 2 (not shown), by measuring the noise intensity of the diode output over selected narrow frequency bands using a photo-cell and bandpass filter, f 10  being at a sharp maximum whose position depends on the excitation current. With low excitation currents the modulation obtained using the second resonator is of a pulse form, Fig. 1 (not shown), while high currents give a sinusoidal modulation. The latter modulation is also obtained using an electrical resonator. The modulation is stated to be due to coupling between axial modes. Fig. 3 also shows an electro-optical LiNbO 3  polarizer 14 and a polarizer 15 which are used to effect further modulation for communication purposes. Information is fed to crystal 14 from a source 12 via an analogue/digital converter 16 which is so synchronized to f 10  that a " 1 " is only transmitted during a time when an output pulse occurs from the second resonator. With the sinusoidal output above, the A/D converter 16 may be omitted.
Patent GB-671248-A (GB)
Title: Improvements in apparatus for the production of photographic prints
IPC: G03B27/30
Filed: 1950-02-28
Abstract: 671,248. Photographic gas-developing and contact-printing apparatus. OLSSON, H. A. Feb. 28, 1950 [March 4, 1949], No. 5089/50. Class 98 (ii). The gas developing apparatus, which comprises a casing containing a liquid producing a developing gas and closed except for one or more parallel slots through which prints are fed between pairs of adjacent belts extending into said casing, at least one belt of each pair being gas - permeable, is characterized in that the belts are movable manually against a restoring force to withdraw them from the casing for removal of the developed sheets and introduction between the belts of further unexposed sheets which are then carried into the casing for development by the restoring force acting on the belts. To one face of the casing of the developing apparatus is attached a contact printing-box having a vertical glass print- and original-receiving plate and disposed to permit transfer of the exposed sheets from the top of the printing box into the print receiving slot or slots in the top of the developing apparatus. As shown, a box 4 of wood, plastic, or sheet-metal contains a trough 5 generating ammonia and has a slot 3 normally sealed by a sponge rubber packing 18 attached to a handle 17 secured to a gas-impermeable belt 16, as of polyvinyl chloride, carried by a spring blind type of roller 9 adjacent the trough 5. Attached to one face of the belt 16 at 19a is a gas-permeable belt 19 which passes around a roller 20 adjacent the slot 3 and round the belt 16 on the roller 9 to the other face of this belt also at 19a, thereby in the normal position shown forming a pocket between the belts. If desired, the belt 19 may be made in two parts connected by a lacing 24. When the handle 17 is withdrawn from the slot until the join 19a of the two belts is adjacent the slot, by inserting an exposed photographic print into the slot, the print is conveyed into the developing box between the two belts on releasing the handle. By. this arrangement the escape of gas during the introduction and removal of prints is made small, so that a printing-box may be arranged against the developing box without escaping gas spoiling the unexposed printing material. In the arrangement of Fig. 3 (not shown), the printing- box includes. a vertical glass plate which is parallel to the belts 16, 19 and on to which the negative and printing material are held by a springy platen when this is latched closed at the top, while the developing-box has two slots 3 and two sets of belts 16, 19 so that two prints may be developed simultaneously.
Patent GB-1498789-A (GB)
Title: Method and apparatus for the dynamic display of time and space variant information
IPC: G06T1/00
Filed: 1962-02-09
Abstract: 1498789 Matrix displays D M HOMA and P DEMERS 9 Feb 1962 [23 Aug 1961] 5170/62 Headings G4H and G5C The tracks, e.g. of submarines, are indicated on a display board by the illumination of lamps having positions on the board corresponding to the positions of sonobuoys moored in a large area of ocean. The sonobuoys store the signals received upon detection of a submarine and these signals are transmitted and collected at 12 or 24 hour intervals by an overflying aircraft. The collected signals are fed to the board at times related to the times at which they were detected but with a much compressed time scan and are repeated over and over again at a repetition period from a fraction of a second to several seconds. The presentation of the tracks in this manner enables the tracks of a number of submarines to be readily perceived and also enables spurious signals to be rejected. In an embodiment described with reference to drawings (not shown) there are 1000 lamps each representing a sonobuoy and the collected signals for a period of 72 hours are transmitted to the lamps by a chain of 72 relays which operate one another in rapid succession.
Patent GB-700699-A (GB)
Title: Improvements in or relating to stainless emulsible grease
Filed: 1951-03-06
Abstract: An emulsifiable grease composition, particularly suitable for pipe bending and wire drawing, comprises 25 to 75 per cent. of an alkaline hydrocarbon base oil, a lubricating solid which is either talc or mica and minor proportions of tall oil, a polyhydric alcohol, a fatty acid and an amine corrosion inhibitor.  The alkaline base oil, which is preferably present in an amount from 50-60 per cent. by weight of the composition, contains alkali metal petroleum sulphonates, preferably from 10-15 per cent. by weight of the base oil, and may be an alkali-treated, acid-refined hydrocarbon lubricating oil with a viscosity at 100 DEG F. or from 75 to 500 S.S.U.  The tall oil is generally present in an amount from 0.5 to 2 per cent., preferably 0.5-0.6 per cent., by weight of the composition.  The polyhydric alcohol also is generally present in an amount from 0.5 to 2 per cent., preferably 0.5-0.6 per cent., by weight of the composition, and may be glycerine, propylene glycol, or di- or tri-ethylene glycol.  The preferred fatty acid is stearic acid, but oleic acid, palmitic acid, lauric acid, wool grease fatty acids, linoleic acid, or fatty acids derived from lard oil and tallow oil may be used; it is generally present in an amount from 0.05 to 0.2 per cent., preferably about 0.1 per cent., by weight of the composition.  The corrosion inhibitor may be cyclohexylamine, N-phenyl-alpha-naphthylamine, dicyclohexylamine or iso-octyl-phenyl-methylamine, and it should be present in a concentration of 0.3 to 1 per cent. by weight of the composition.