baber/WOPTO huggingface dataset:
Patent GB-241040-A (GB)
Title: Improvements in or relating to lenses for vehicle lamps
IPC: F21V5/00
Filed: 1924-11-21
Abstract: 241,040. Bingham, M. F., (Zorger, W. H.). Nov. 21, 1924. Lenses. - A lens for a vehicle lamp comprises upper and lower series of concentric arcuate prisms 1, 1 separated by a horizontal zone 2 and bounded by a margin 3. Both series of prisms have their bases directed downwardly and they may have a common centre such as one situated on the horizontal diameter of the lens, or they may have centres situated on the upper and lower margins respectively of the zone 2. The inclined surfaces of some or all of the prisms 1 preferably have curved surfaces and the prisms may have varying deflecting powers. Both faces of the lens may be prismatic or all the prisms may be placed on the inner face, the outer face being either plain or fluted, crinkled, ground or otherwise made diffusing. The zone 2 may be formed of plain glass or a part of the whole of this zone may be in the form of one or more horizontal prisms. The margin 3 may be ground, stippled, ribbed, frosted or otherwise provided with a roughened surface and made diffusing.
Patent GB-946310-A (GB)
Title: Improvements in and relating to foamed urethane polymers
IPC: C08G18/48
Filed: 1960-08-12
Abstract: A foamed polymer comprises a three-dimensional network of isocyanate-modified hydroxypolyalkyleneoxy ethers of 2,2-(hydroxy-benzene-substituted)-ethanol, said polymer containing within the polymer network units having the formula: <FORM:0946310/C3/1> in which X and Y are arylene radicals; each R4 is an ethylene radical or propylene radical; n is a whole number at least 2; and n is an integer of value from 1 to 5. The polymer can be prepared by reacting the appropriate alkylene oxide addition product of a 2,2-(hydroxy aryl) ethanol (Specification 944,509) with a polyisocyanate and causing foaming either simultaneously or subsequently by incorporating as blowing agent water or a material which vaporises at or below the reaction temperature.  If a prepolymer is first foamed there may be added to it a retarder such as inorganic or organic acids, organic or inorganic acid halides, sulphur dioxide and acid sulphones.  The ratio of water to residual isocyanate equivalent is preferably in the range 0.5:1.0 to 1:5:1.0. Trichloromonofluoromethane; dichlorodifluoromethane; dichlorofluoromethane; 1,1-dichloro-1-fluoroethane; 1-chloro-1,1-difluoro-2,2-dichloroethane; and 1,1,1-trifluoro-2-chloro-2-2 fluoro, 3,3-difluoro-4,4,4-trifluoro-butane are specified blowing agents. As catalysts there may be used 2,2,1-diaza-bicycle octane, trimethylamine, 1,2-dimethyl-imidazole, trimethylamine, diethylcyclohexylamine, dimethyl C12 to C18 amines, dimethyl or diethylaminoethanol, N-methyl- or ethyl-morpholine, triethanolamine, sodium hydroxide, phenolate or methylate, phosphines, arsenic trichloride, antimony trichloride, pentachloride or tributoxide, bismuth trichloride, titanium tetrachloride, bis- (cyclopentadienyl) titanium difluoride, titanium chelates, dioctyl lead dichloride, diacetate or oxide, trioctye lead chloride, hydroxide or acetate, copper chelates mercury salts and organotin compounds, of which a large number of various types are listed. There may also be used stabilizing or thickening agents such as cellulose derivatives, vinyl polymers, clay, metallic soaps e.g. aluminium stearate. Suitable fillers are clays, powdered aluminium, diatomaceous earth, dyes. Emulsifying agents such as a siloxane-oxyalkylene copolymer can also be added to the reaction mixture.  In examples foams are prepared by reacting a mixture of (1) together a propylene oxide adduct of 2,2-bis(hydroxy phenyl) ethanol, (2) an ethylene oxide adduct of 2,2-bis(3-methyl-4-hydroxyphenyl) ethanol and (3) 2,3-bis-(3,4,5-trihydroxyphenyl) ethanol, respectively, with dibutyltin dilaurate, silicone oil surfactant, trichloromonofluoromethane and 2,4- and 2,6-tolylene diisocyanates. Example (4) is similar to (1) but a dioctyl tin oxide catalyst is used.
Patent GB-1045182-A (GB)
Title: Process of producing sucrose benzoate
IPC: C07H13/08
Filed: 1963-07-16
Abstract: Sucrose benzoate is produced by intimately mixing benzoyl chloride, an aqueous solution of sucrose and an alkali in the presence of a waterimmiscible solvent, capable of dissolving benzoyl chloride and sucrose benzoate, and maintaining the temperature of the mixture at -15 DEG  to 50 DEG  C.  Suitable alkalis are for example sodium and potassium hydroxide and suitable water-immiscible solvents are benzene, toluene, xylene, ethyl benzene, chlorobenzene, chlorotoluene, methylene dichloride, chloroform, carbon tetrachloride, tetrachloroethylene, diethyl ether or di-isopropyl ether or mixtures thereof.
Patent GB-226336-A (GB)
Title: An improved rail and runner for supporting and moving curtains
IPC: A47H1/06
Filed: 1923-11-08
Abstract: 226,336. Rees, W. A. Nov. 8, 1923. Curtains, suspending.--A runner for use in combination with a tee-shaped curtain rail overhangs the outer vertical flange of the rail, thus allowing the wheel to run on the horizontal web a, Fig. 1. The wheel is grooved to engage and revolve freely within an oval or tee-shaped slot in the back face of the runner, as shown in Fig. 5. Modified forms of metal tee-shaped rails are described; also, a rail having a metal face b and wood back c, forming the track, as shown in Fig. 3.
Patent GB-776440-A (GB)
Title: Improvements in or relating to stable beta-containing alloys of titanium
Inventor: VORDAHL MILTON BERNARD
IPC: C22C14/00
Filed: 1953-10-13
Abstract: Stable beta phase-containing alloys of Ti have compositions within the following range, 1-50 per cent in total of one or more of Mo, V, Nb and Ta, 0-12 per cent in total of one or more of the elements Cr, Mn, Fe, W, Co, Ni, Si and Be, the Cr and Mn not exceeding 6 per cent and the others not exceeding 3 per cent in total, each of Mo and V exceeding 2 per cent when present with Cr or Mn alone and Cr exceeding 2.5 per cent when present with Mo alone, the balance of the alloys being Ti.  The alloys may contain 0-0.2 per cent each of CO and N provided that the Mo and V contents exceed 5 per cent when either is present with W and exceed 2 per cent when either is present with Cr. 0.5-7.5 per cent Al may be present provided that the C content is less than 0.1 per cent when the alloy contains Mn.  A working and heat treating operation referred to comprises rolling at 1400 DEG F., cleaning and rolling to final gauge at 1300 DEG F., holding for 1/2 hour at 1300 DEG F, furnace cooling to 1100 DEG F, air cooling to room temperature and ageing, e.g. at 750 DEG F. or 500 DEG F.
Patent GB-1514707-A (GB)
Title: Immobilization of biologically active substances
IPC: C12N11/14
Filed: 1974-06-25
Abstract: 1514707 Immobilised enzymes UNITED KINGDOM ATOMIC ENERGY AUTHORITY 17 June 1975 [25 June 1974] 28212/74 Heading C3H In a method for the preparation of a porous support material carrying a biologically active substance immobilized in the pores thereof, biologically active substance is introduced into the pores of a porous support material and treated to provide temporary retention thereof to hold the same available for cross-linking; thereafter the biologically active substance is cross-linked. Many examples of support materials are given, e.g. TiO2, Ca2(PO4)3, Al2O3, ZrO2, glass, diatomaceous earth, wood, viscose, dextran resins or polyacrylamide gel. The biologically active substance may be an enzyme, e.g. lactase amyloglucosidase, alpha-amylase, chymotrypsin, trypsin, urease, glucose oxidase, lipoxidase, glucose isomerase or papain. Glutaraldehyde, formaldehyde diethylpyrocarbonate, glyoxal or a bis-diazanium salt are mentioned as cross-linking agents.
Patent GB-519702-A (GB)
Title: Improvements in and relating to the treatment of high melting-point metals and alloys and in the production of shaped articles therefrom
IPC: C22C1/04
Filed: 1938-09-28
Abstract: 519,702. Obtaining coherent masses from powdered metals ; alloys. STEVENS, A. H. (Goldsmith Bros. Smelting & Refining Co.). Sept. 28, 1938, No. 28213. [Class 82 (i)] Shaped metal articles such as pen tips, meter pivots, and gramophone needles are made from metals or alloys of high melting point by forming finely divided material comprising one or more platinum group metals with or without one or more other metals into shaped particles by pressure and sintering. The articles may be formed as individual granules, or a block may be formed which may be crushed to produce granules. The materials may be osmium, or osmium bonded with other platinum group metals ; osmium-tungsten alloys, or such alloys in which the osmium is wholly or partly replaced by ruthenium or by other platinum group metals with or without ruthenium and with or without beryllium, zirconium, tantalum, niobium, tungsten, molybdenum, iron, nickel, or cobalt. For example, articles of an alloy of 85 per cent. of osmium and 15 per cent. of platinum may be made by mixing finely ground osmium with alcoholic platinum chloride solution, reducing in hydrogen, grinding the product to granules, heating to 2,600 F. in an inert gas, heating to 2,000 F. in a vacuum to remove hydrogen, heating to over 2,600 F. in an inert gas, cooling to 1,400-1,500 F. in hydrogen, and heating to 2,600 F. in hydrogen. Other examples are :- (1) 85 per cent. of osmium, 10 per cent. of platinum, and 5 per cent. of nickel ; (2) 85 per cent. of osmium, 10 per cent. of platinum, and 5 per cent. of rhodium ; (3) 85 per cent. of osmium, 12.5 per cent. of ruthenium, and 2.5 per cent. of nickel; (4) 85 per cent. of osmium, and 15 per cent. of ruthenium.
Patent GB-188919-A (GB)
Title: Spark plugs
IPC: H01T13/14
Filed: 1921-10-26
Abstract: 188,919. Carpenter, P. V. Oct. 26, 1921. Sparking-plugs. - In plugs of the type in which the casing is formed with an inclined valved passage for the introduction of starting fluid, the passage is made so that it is axially in line with the gap between the electrodes whereby a cleaning file or the like may be used. The earthed electrode 19 has one end dovetailed or similarly secured in the end of the casing, its other end being given a quarter twist so as to lie at an appropriate distance from the tapered end of the central electrode 18. The face 15 of the enlargement 14 is made parallel to the opposite hexagonal face of the casing to facilitate the use of a wrench.
Patent GB-445350-A (GB)
Title: Automatic tuning for radio receivers
IPC: H03J7/04
Filed: 1934-10-05
Abstract: 445,350. Valve circuits for wireless reception. COLE, Ltd., E. K., Priory Crescent, Southend-on-Sea, and BRADFIELD, G., 34, St. Benets Road, Prittlewell, Essex. Oct. 5, 1934, No. 28497. [Class 40 (v)] A radio receiver is automatically brought into exact tune with a desired signal by deriving from the receiver a control current whose magnitude depends on departure from exact tune and combining therewith separately generated low frequency oscillations, the rectified resultant being applied to a grid of a valve constituting or associated with the local oscillator of the receiver. In the Figure, V1 is an I.F. amplifier, V2 the local oscillator, V3 the mixing valve, and D1 the signal rectifier of a superheterodyne receiver. A further diode D2 provides a rectified voltage which increases as exact tuning is approached, this voltage being applied to the primary 4 of a transformer, audio frequency variations are byepassed by condenser C. Low (sub-audible) frequency oscillations, generated for example by a neon tube-condenser combination (Fig. 2, not shown), are applied at 7 to the secondary of 4 and are rectified by rectifiers 5, 6, producing pulsating potentials on the grid of V2 over resistance 8. The resulting pulses rectified by D2 aid or oppose the pulses from 7 in circuit 4, 5, 6 ; when the pulses aid, the change of frequency of V2 is cumulative towards the in-tune position ; when they oppose, there is no substantial change in frequency. The normal frequency of the oscillator V2 is arranged to be slightly displaced from the true required oscillator frequency. In a modification, a hexode frequency changer is employed, the oscillator frequency being varied by a thermionic valve acting as a shunt capacity across the oscillator circuit, Fig. 3 (not shown). Reference has been directed by the Comptroller to Specification 437,442.
Patent GB-219559-A (GB)
Title: Apparatus for actuating the air starting valves for reversible combustion engines
IPC: F01L13/00
Filed: 1923-11-12
Abstract: 219,559. Cappellen, T. A. van Nov. 12, 1923. Starting; reversing.-For starting in either direction, the starting air valve 1 is actuated through a spindle 11 having a roller 14 which can be brought, into position for actuation by a forward or a reverse cam on the shaft 19 by turning the spindle 11 about its axis. During normal running, the roller 14 is between the cams and is not actuated. As shown, the spindle 11 is at right-angles to the valve spindle 4, which is actuated through a lever 8, but the spindles 4, 11 may be in alignment. The spindle 11 is turned by means of a rack 16 acting upon a toothed flange 15, and a single rack may be arranged to adjust spindles serving for the air valves of a number of cylinders. The cams may be on either side of a crank which actuates a fuel pump.
Patent GB-1044517-A (GB)
Title: Fluid handling devices
Inventor: WADDINGTON ROGOR STRANGE
IPC: B65D47/28
Filed: 1962-07-25
Abstract: 1,044,517. Pouring devices; container closures; delivering measured quantities of liquid. WADDINGTON & DUVAL (HOLDINGS) Ltd. July 25, 1963 [July 25, 1962], No. 28615/62. Headings B8D, B8N, B8T and B8X. [Also in Division F2] Liquid is dispensed from a container N through a movable valve member having a liquid inlet 3 and liquid exit 5, a vent opening into the container being provided at 4. In a modification, Figs. 2-5 (not shown), a lining 12 is slidable in a fixed sleeve 11, both members 11, 12 being injection moulded from polythene. A rib 32 on the sleeve 11 forms an interference fit with the flange of an opening 30<SP>1</SP> in the container. The lining 12 has a liquid inlet 18a, 18b, liquid outlet 17, and vent opening 19; the sleeve 11 has a liquid inlet 15a, 15b and  vent opening 16, Fig. 4 (not shown). An abutment 14b on the lining comes into friction contact with an abutment 13d on the sleeve to indicate an intermediate withdrawal position, but may be pulled past it. To obtain a measured quantity of liquid the lining is pushed inwards until the inlet 18a, 18b in the lining extends beyond the inner end of the sleeve and the outlet 17 in the lining partially coincides with the inlet 15a, 15b in the sleeve. In this position, air may enter the container through the vent 19 in the lining. When the lining member is filled, it is pulled out to the intermediate position so that the outlet 17 extends beyond the outer edge of the sleeve and the inlet 18a, 18b in the lining is closed. Alternatively, if the abutment 14b is pulled past the abutment 13d on the sleeve, the inlet 18a, 18b can be made to coincide with the inlet 15a, 15b of the the sleeve; the outlet 17 being beyond the outer end of the sleeve, liquid may then be poured freely. Air enters the container through the vent 16 in the sleeve as the vent 19 in the lining is brought into register with it. Before use, the end of the sleeve 11 is removed by pulling a tab 28<SP>1</SP> which causes radial spokes 28, joining a disc 27 to the sleeve, to be ruptured. The liquid may be directed outwards by a member 37. A ring 23 on the lining member forms a handle.
Patent GB-1036927-A (GB)
Title: Method for the reciprocal attachment of rectangularly-interpenetrating tubes
IPC: F16B3/04
Filed: 1963-07-19
Abstract: 1,036,927. Tube expanding. W. SIHN [trading as WILHELM SIHN JUN. KOMM.- GES.]. July 19, 1963 [July 23, 1962], No. 28649/63. Heading B3J. [Also in Division H4A] A dipole aerial in the form of a tube 4 of non- rectangular cross-section is secured and electrically connected to a support tube 2 by protrusions 7 formed in the tube 4 by rotation of a mandrel 5 or 5<SP>1</SP> bearing projections b or b<SP>1</SP>.
Patent GB-1279180-A (GB)
Title: Signature or sheet collating apparatus
IPC: B65H39/055
Filed: 1970-06-12
Abstract: 1279180 Delivering sheets J W CLEMENT CO 12 June 1970 [25 June 1969] 28656/70 Heading B8R A signature collating apparatus comprises a plurality of units in each of which a signature 12, Fig. 1, is fed by a feeder 10 from a magazine 14 past a malfunction detecting caliper 18 on to a collating conveyer 16 whereon the signatures are collected into books and conveyed past a reject mechanism 48 which rejects a faulty book. The units make up the groups 25a-25j, Fig. 3, each comprising four feeders 1-4, the spacing A between groups being greater than the spacing B between units in a group to compensate for the fact that each successive group of feeders is driven 36 degrees out of phase with the preceding group. Malfunction signals from any caliper 10 are passed through a corresponding switch 20, Figs. 2 and 4, to a monitoring device 30 comprising a shift register made up of a functional element 40 for each feeding unit a spacing element 42 for the space between each two groups, intermediate elements 46 for stations between the last feeder and the reject station, and an ejector element 44. Each switch 20 is connected to one of the functional elements and each group of elements 40, 42 also receives a signal from a pick-up 36 when the latter is scanned by a magnetic element 34 on a rotating disc, each element 42 receiving such signals successively from the pick-ups corresponding to the preceding and the following group. The effect is that a malfunction information "bit" set up in any of the functional elements is shifted through all the elements 40, 42, 46, 44 in synchronism with the feeding cycles, so that the mechanism 48 is actuated by the element 44 when the faulty book reaches it. A predetermined number of malfunction signals from any one unit results in a signal through one of AND gates 56 to an OR gate 64, which actuates a relay 68 to stop the collating apparatus.
Patent GB-635400-A (GB)
Title: Improvements in or relating to head rests
IPC: A47C7/38
Filed: 1948-11-05
Abstract: 635,400. Head rests for seats. CHALLIS, P. Nov. 5, 1948, No. 28826. [Class 52 (ii)] A head rest for attachment to the back comprises a pair of frames A<SP>1</SP>, B<SP>1</SP> of metal &c. pivoted together at C<SP>1</SP> and adapted to be sprung apart at their lower ends to grip over the back E<SP>1</SP> of a chair and at the same time firmly to hold a removable cushion V<SP>1</SP> at their upper ends as by cross ties Q<SP>1</SP>, T<SP>1</SP> so that the cushion is supported above the back of the chair to serve as a head rest. As shown, the frame M<SP>1</SP>, L<SP>1</SP> is cranked rearwardly at N<SP>1</SP> to rest upon the top of the chair back. Means may be provided for locking the frames in operative position such as a turnbutton on one frame having an inclined or wedge face so that when turned the face presses against the other frame. A modification is described wherein the lower part of one frame is pivoted to two arms of the upper part.
Patent GB-696813-A (GB)
Title: Improvements in and relating to an electrical method of bringing about physical or chemical alterations in liquids
IPC: C25B7/00
Filed: 1949-11-10
Abstract: 696,813. Electric treatment of particles in a liquid. NYROP, J. E. Nov. 10, 1949, No. 28827/49. Class 41. Particles of different sizes in a liquid are subjected to the effect of an alternating electric field or current which periodically changes from positive to negative, the positive period of the alternating field being longer than the negative, and the positive field strength being weaker than the negative, or alternatively the negative period of the alternating field being longer than the positive and the negative field strength being weaker than the positive, the field strength and the length of the positive and negative periods being chosen so that charged larger particles move towards one electrode and the quantity of electricity moved is the same in both directions. The process may be used in the concentration of rubber particles in latex. Within a narrow container of insulating material are mounted an inner cylindrical rotating electrode and an outer semi-cylindrical fixed electrode. Latex diluted with water is introduced between the electrodes and an unsymmetrical alternating electric field is applied so that when the inner electrode is positively charged a potential difference of 1000 volts is maintained for 1/ 80  second; during the reverse phase a potential difference of 100 volts is maintained for 1/ 8  second. The rubber particles concentrate as a soluble paste on the rotating inner electrode from which the paste can be removed by a stationary scraper on the fixed electrode.
Patent GB-519000-A (GB)
Title: Improvements in and relating to railway switch or point mechanism
IPC: B61L5/00
Filed: 1938-10-05
Abstract: 519,000. Railway point mechanism. WILLIAMS, L.WYNN-. Oct. 5, 1938, No. 28879. [Class 104 (i)] In a one-way lever switch mechanism such as that described in Specification 399,158 the body 1 of the lever, its pivotal boss 4, and the part 6 provided with the inclined surface 7 for engagement by the operating lever, are formed as separate elements from rolled steel bar, and are then welded together. The spring toggle 9 ispivoted to the element 6.
Patent GB-533330-A (GB)
Title: Generating combustion products for power purposes
IPC: F02K7/02
Filed: 1939-10-28
Abstract: 533,330. Gas turbines. HALLOWELL, E. Oct. 28, 1939, No. 28912. [Class 110 (iii)] A column of gas in a tapering conduit 12, 16, 13 between two explosion chambers 10, 11 is caused to oscillate by periodic explosions in the chambers and the maximum velocities exceed that of sound. Gases pass by conduits 17, 18 to turbines 19, 20 and fresh air enters by an unvalved port 23. Fuel is admitted to chambers 10, 11 by pipes 21, 22. An auxiliary explosion chamber for starting the plant is arranged at the side of chamber 10 and opens into it by a spring-loaded valve which is normally closed. A pair of chambers oppositely and tangentially arranged in respect of the passages 12, 13 may be used in place of the single chambers 10, 11.
Patent GB-733871-A (GB)
Title: Device for the feeding of granular materials
IPC: B65G53/46
Filed: 1952-11-17
Abstract: 733,871. Shoots. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Nov. 17, 1952 [Nov. 21, 1951], No. 28983/52. Class 78 (1). Material fed to or from a closed container passes down shoot 1 into enlargement 3, which latter has partition 4 and gates 20, 30. When the upper gate 20 takes its right-hand position the material piles up in compartment 3A because lower gate 30 is, at that moment, positioned to the left. Then the upper gate 20 swings over to its left-hand position and the lower gate 30 swings over to its right-hand position so that compartment 3A now empties and compartment 3B fills.