baber/WOPTO huggingface dataset:
Patent GB-1179035-A (GB)
Title: Improvements in or relating to Thermoelectric Generators
IPC: H01L35/06
Filed: 1967-04-13
Abstract: 1,179,035. Thermoelectric devices. MINNESOTA MINING & MFG. CO. 13 April, 1967 [14 April, 1966], No. 17096/67. Heading H1K. [Also in Division C7] A thermoelectric leg is provided at one end with an attached layer of a material such that, when the leg is held in pressure contact with an electrode at the operating temperature of a generator incorporating the leg, the layer is plastically deformable to provide a good electrical contact between the leg and the electrode. A similar layer may be provided at the other end of the leg. One leg material is 95 mol. per cent of an even part mixture of lead and till tellurides with 5 mol. per cent of manganese telluride and having added thereto 2 atomic per cent thereof of sodium; the layer material in this case is a similar material not containing the manganese telluride. The leg and layer may be made as a unit by pressing adjacent powder layers and by sintering the compact in a reducing atmosphere. Other materials are lead germanium telluride for the leg with lead telluride for the layer; silver antimony telluride for the leg with antimony telluride for the layer; and lead germanium telluride for the leg with a similar material containing excess lead or tellurium for the layer. Fig. 1 depicts a sub-assembly for a generator, having thermoelectric elements 13, 14 each bonded to nickel-plated copper electrodes 15 sliding loosely within a finned aluminium heat sink 15 which houses the pressurizing springs. Attached to the element 13 and between it and the iron electrode connector 19 is the plastically deformable layer. The connector is insulated by mica 20 from a stainless steel body heated by a gas burner.
Patent GB-586769-A (GB)
Title: Improvements in and relating to draining boards for sinks and the like
IPC: A47B77/06
Filed: 1944-09-07
Abstract: 586,769. Sinks. JACQUES, A., and SHARROCKS, J.- Sept. 7, 1944, No. 17098. [Class 26] [Also in Groups VI and XXII] The surround 8 of a sink 9 has welded into it a separately formed corrugated draining board 12 with a substantial fall, the board being originally made of larger width than the gap in the surround so as to allow for a large number of deep corrugations being formed without distortion or fracture of the metal, e.g., stainless steel. The gap is flanged down at 10 as deep as the height of the corrugations to make a good joint, the outer end of the corrugations merging into a flange, Fig. 5, to fit over or be welded to, and so incorporated in the sink. The surround may be flanged down at 11 or the board may have upstanding sides 18, Fig. 7, to meet and be welded at 17 to the surround 8.
Patent GB-207214-A (GB)
Title: Improvements in apparatus for filtering solutions used in the manufacture of artificial silk and the like
IPC: B01D35/02
Filed: 1922-06-22
Abstract: The filter of the combined jet holder and filter of apparatus for the spinning of artificial silk &c. is arranged in such a manner that the solution under pressure is introduced into the casing surrounding the filter candle, then passes through the filtering-material wound on or otherwise attached to the exterior of the candle, finally escaping into the central passage of the candle, which is in direct communication with the jet tube; by this arrangement the filtering-material is pressed on to the candle, so ensuring a more efficient filtering action.  The candle may be corrugated, grooved, screw-threaded, &c. on the exterior in order to increase the filtering surface and to provide collecting ducts; and the enclosing casing, which may be of ebonite reinforced if necessary, may be provided with a pressure relief valve.
Patent GB-880023-A (GB)
Title: Method of and apparatus for examining prestressed glass
IPC: G01B11/16
Filed: 1958-05-29
Abstract: 880,023. Examining glass photo-electrically. SPIEGELGLASWERKE GERMANIA A.G. May 29, 1958 [July 3, 1957], No. 17226/58. Class 40(3). In apparatus for examining prestressed glass, light from a source 4 passes through a lens 5, polariser 7, glass sheet 8, analyser 9 crossed with the polariser, a rotary scanning disc 11 and apertured plate 13, and lens 15 on to a photo-cell 16. The photo-cell has associated with it an amplifier and a filter which passes abnormal fluctuations of output and operates an alarm. The alarm circuit includes a contact closed by another photo-cell when the glass sheet 8 is in position. The scanning disc has radial or outwardly extending spiral slots.
Patent GB-690331-A (GB)
Title: Improvements in electric wiring systems
IPC: H02G3/06
Filed: 1949-06-29
Abstract: 690,331. Conduits. BRITISH INSULATED CALLENDER'S CABLES, Ltd., and BRYCE, S. J. June 29, 1950 [June 29, 1949], No. 17242/49. Class 36. [Also in Group XXVIII] In an electric wiring system, a metal conduit 1 having a protective coating 2, such as a polymer of vinyl chloride and a plasticizer, is secured at its ends to an internally-threaded socket 3 of a fitting by screwing the unthreaded conduit therein. The fitting may form part of a gland providing a fluid-tight joint between the conduit and a cable 10, the fitting 7 and gland-nut 5 screwing into a sleeve 4 to compress a rubber bush 6 between washers 12.
Patent GB-1479065-A (GB)
Title: Bonding polyester adherends to polyester or metal adherends
IPC: C08J7/043
Filed: 1975-04-25
Abstract: 1479065 Laminates GOODYEAR TIRE & RUBBER CO 25 April 1975 [26 Aug 1974] 17290/75 Heading B5N A polyester composition or metal adherend is treated with first and second treating agents comprising an organic polyisocyanate, e.g. an aromatic, aliphatic or cycloaliphatic diisocyanate or triisocyanate, and a tertiary amine, e.g. triethylene diamine, triethylamine or an alkyl piperazine or morpholine, and bonded to a further polyester composition adherend using an adhesive comprising a polyurethane containing isocyanate groups which is cured after the adherends have been brought together. The first and second treating agents may be applied in either order in the form of solutions by brushing, spraying or rolling with drying after each application. The adhesive may comprise a prepolymer prepared by the reaction of a reactive hydrogen containing material of molecular weight 500-4000 with an organic polyisocyanate, a curing agent and a filler, e.g. clay or silica. The polyester composition adherends made contain a glass fibre reinforcement. The metal adherend may comprise steel, copper, aluminium or magnesium.
Patent GB-756558-A (GB)
Title: Improvements in compostions for the manufacture of printers' and similar rollers
IPC: B41N7/06
Filed: 1953-06-23
Abstract: In a composition suitable for the manufacture of printers' and similar rollers comprising animal glue such as gelatine, an amine or amines of aliphatic or aromatic structure or an amine salt of aliphatic structure or an amine derivative of heterocyclic structure or a mixture of two or more of such structures is, or are substituted for the glycerine usually employed in such compositions. Triethanolamine, isopropanolamine, ethanolamine, phenyl ethanolamine, phenyl morpholine and triethanolamine oleate are specified.  The pH value of the amine or amine derivative in the composition may have been altered by reacting it with a mineral acid such as phosphoric, sulphuric, or nitric acid, or its solubility in water and compatibility with gelatine may have been altered by reaction with such acid or with a high molecular weight organic acid, e.g. stearic, oxalic, citric or, adipic acid. The composition may also contain polyglycerol, polyethylene glycol, or propylene glycol.
Patent GB-1515551-A (GB)
Title: Noise reduction in electrical signals
IPC: H04N5/21
Filed: 1975-04-25
Abstract: 1515551 Television BRITISH BROADCASTING CORP 21 April 1976 [25 April 1975] 17331/75 Heading H4F The effects of noise in an electrical input signal which is obtained by scanning pictorial information on a field-by-field basis are reduced by subtracting from a current field scan signal the corresponding signals from a previous field scan period to provide a difference signal, attenuating low-amplitude portions of the difference signal relative to high amplitude portions thereof, and adding the thus attenuated signal to the said signal from the previous field scan period to provide an output signal for the current field scan period. To this effect, a television signal received at a terminal 10 is fed through a subtractor circuit 12, where the signal from the preceding picture or field period is subtracted therefrom. The resulting difference signal is passed through an attenuation circuit 14 to an adder circuit 16, where the signal from said preceding picture or field period is added thereto, and thence to an output terminal 18. The circuit 14 includes a low-pass filter 22 connected to the output of subtractor 12, a circuit element 24 having a non-linear transfer characteristic, and a multiplier 26 one input of which is connected to the output of element 24 and the other input of which is coupled via a compensating delay 28 to the output of subtractor 12. Circuit element 24 provides an output 1/K, where K>1, for input amplitudes lying in the range from zero to a threshold voltage V T , and for input amplitudes above the threshold the output is given by the function 1-[V T (1-1/K)/|V IN |]. Delay element 20a connected between the output of adder 16 and the inversion input 12b of subtractor 12 provides a delay of T p -T c  where T p  is the time of one picture period of the television signal and T c  equals the delay time introduced by filter 22 and circuit element 14. The apparatus may include a predictor circuit 30 in the path of the signal through delay element 20a. The predictor circuit allows the apparatus to work in situations where the delayed and undelayed signals do not precisely correspond to each other. Thus in the case where the delay time T p -T c  equals one field period as in interlaced scanning, the predictor circuit has provision for interpolating between lines of a television signal. In the case where the processing is applied to composite colour television signals, such as PAL or NTSC signals, where a one-picture period delay is used and the colour subcarrier phase changes between pictures, the predictor circuit serves to change the phase of the colour subcarrier of the colour television signal. A modification is described which is adapted for use with digital television signals.
Patent GB-1385195-A (GB)
Title: Colorimetric apparatus
IPC: G01J3/50
Filed: 1971-05-26
Abstract: 1385195 Photo-electric colorimeter IPC SERVICES Ltd 18 May 1972 [26 May 1971] 17339/71 Heading G1A The colour balance of a print produced on a printing press is measured by photo-electric apparatus utilizing a plurality of colour filters, display means to indicate the amount of each colour being provided. In the arrangement of Fig. 1, the colour print 2 is illuminated by annular fluorescent tube 6 and reflected light is focused on to the end of optical fibre guide 7. A filter wheel 8 carrying red, blue and green filters is mounted in front of photo-cell 11. In use, a master print is located on base 1 and a filter selected, the meter 13 being zeroed for the particular colour by appropriate control R, G or B. The test print is then measured. In the embodiment of Fig. 2, print 22 is held face down on transparent surface 21, tubular beams 25 are used and beam splitters 27, 28 allow simultaneous measurement of the three colours (cyan, magenta and yellow, then red, green and blue filters are used). In the embodiment of Fig. 3 or Fig. 4 (not shown) the source 45 is shielded from detectors 47-49 by a wall 46. A lens 44 is used to direct the reflected light from print 42 to the filter/photocell combinations. The detectors may be photodiodes. Lens 44 may be part of the transparent support. The outputs of the detectors may be fed to an analog computer which compensates for secondary absorption effects before display. Parts of the print which are not to be monitored are masked off.
Patent GB-843375-A (GB)
Title: Adhesives in powder form
IPC: A61K6/00
Filed: 1958-05-30
Abstract: Adhesives for holding dentures in place comprise powders of natural substances exemplified by tragacanth; karaya, carob bean, arabic, gamboge and guar gums, alginates, pectinates, agar and Irish moss, in which powders at least 50% is of particle size greater than 0,15 mm. The powders may contain 1-15% of a fatty, waxy or resinuos substance, added in powder form, or as a melt or solution.
Patent GB-679315-A (GB)
Title: Cabinet for the storage and display of fried fish
IPC: A47F3/00
Filed: 1950-07-11
Abstract: 679,315. Show-cases. JONES, W. A. June 6, 1951. [July 11, 1950] No. 17388/50. Classes 52 (i) and 52 (iii). A show-case for fried fish comprises a support 10 of sheet material which stands on feet 12 and slopes slightly towards the front 4, a plurality of pans 13 resting on the support, a grid 15 standing on feet 16 in each pan and an electric heater 17 between the support 10 and the asbestos-lined base 3 of the cabinet. The heater is controlled by a thermostat 18 having an adjustable knob 19. The front 4 and top 2 are glazed. The back is provided with three forwardly-sloping doors 7 having bottom hinges 8 and made of transparent plastic material. The end walls 5 may be mirrored, glazed or of sheet metal.
Patent GB-728231-A (GB)
Title: An improved equipment for bending simultaneously two rigid metal reinforcements
IPC: B21D7/00
Filed: 1952-07-11
Abstract: 728,231. Reinforced concrete. LIPSKI, A. July 11, 1952 [July 25, 1951], No. 17494/52. Class 20 (4). [Also in Group XXII] Means for simultaneously bending two reinforcing members comprises cross-pieces for maintaining certain parts at a fixed distance apart and strong-backs applied at other points actuated by a hydraulic jack to effect this bending. Reinforcement members 2, 3 are spaced by transverse beams 4 connected by adjustable ties 7 to stiffeners 6. Bars 11 allow flexure of the beams. Strong-backs 13, 14 with screws 15, 16 are located at the points where deflection is to be effected and a hydraulic jack 18, 19 supported on the member 14 and guided by a plate 34 is operated to effect bending. The beams are maintained in deflection by screws 28 connecting the beams through cylindrical or spherical headed nuts engaging similarly shaped seatings to allow the member 14 and the jack to be removed. Specification 696,097 is referred to.
Patent GB-1267424-A (GB)
Title: Hydraulic control arrangement for four speed transmission
Inventor: LEACH MICHAEL ERNEST HUMPHREY
IPC: F16H61/02
Filed: 1969-04-25
Abstract: 1,267,424. Change-speed control. BORGWARNER Ltd. 25 April, 1969, No. 17568/71. Divided out of 1,267,423. Heading F2D. The subject-matter is identical with that of Specification 1,267,423 but the claims are directed to the construction of the manual valve 25 and its inter-related function in the hydraulic control system.  (For Figures see next page)
Patent GB-555147-A (GB)
Title: Improvements in and relating to aircraft wheel brakes
IPC: B64C25/46
Filed: 1940-12-16
Abstract: 555,147. Aircraft wheel brakes. HOARE, P. V. Dec. 16. 1940, No. 177138. [Class 4] [Also in Group XXXIV] Brakes for aircraft landing wheels are arranged to be applied automatically and independently in proportion to the weight on each wheel by displacement on landing of the oleo leg or other resilient member that carries the wheel, a clamping device being provided to prevent response of the braking action to quick displacement of the oleo leg or equivalent due to uneven ground. The apparatus shown comprises telescoping cylinders 8, 9 adapted to be removably secured at the ends 4, 5 respectively to the relatively displaceable parts of an oleo leg that carries a wheel. A floating piston 11 divides the cylinder 8 into a chamber 12 containing liquid and connected to the brake by a restricted passage 13 adjustable by a needle valve 15 and passage 14, and a chamber 16 containing air. The cylinder 9 also contains air and communicates with chamber 16 through a valve 27. The device is thus compressed on landing and the brake applied to a degree dependent upon the load sustained by the wheel. The restricted passage 13 prevents brake response to quick relative movement of the parts of the oleo leg. The valve 27 permits air compressed in the cylinder 9 freely to enter the chamber 16 but as air can return only through a restricted passage through the valve, the pressure in the chamber 16 is not suddenly relieved if the oleo leg rebounds. The capacity of the cylinder 9 may be increased by the provision of an additional chamber communicating therewith, and which may be provided with a spring-loaded piston. The brake may be released after landing by opening a non-return valve 17 by a handle 21 and cam 18, the valve being held open by a spring-toggle device. Closing of the valve when the machine leaves the ground and the oleo leg extends is ensured by engagement of a projection 24 on a rod 25 secured to the exterior of the cylinder 8 with an extension 23 of the handle 21. The pressure source for applying the brake may instead be provided by the internal pressure in the oleo-leg or the relative displacement of the parts of the leg may apply the brake through mechanical linkage or may operate a valve controlling the admission of pressure fluid to the brake in such a manner that the braking effect is proportional to the weight on the wheel. Manual or automatic brake application may be effected by means of a selector cock.
Patent GB-570126-A (GB)
Title: An improved process for printing or reproducing drawings, manuscript, photographs, prints and the like
IPC: B41M5/025
Filed: 1943-10-27
Abstract: 570,126. Copying documents. HAMANN, P., and CARLINE, R. Oct. 27, 1943, No. 17748. [Class 100 (ii)] A method of reproducing drawings, manuscripts, prints and photographs consists in exposing the surface of the original to the action of an acid-neutralizing vapour such as strong ammonia vapour so that the drawing &c. is impregnated with the vapour and then applying the surface to an acid-coated surface, e.g. of glass to form a latent image. The glass &c. surface is then rubbed with glycerine and water which adheres to the non-image areas only, and then with an inked wad by which ink is applied to the image. The treated plate is used for printing in the usual way. Printing in several colours may be carried out by making a first colour part original on tracing or other oily paper, and producing a print from that part original as described above, then heating the original to cause the oil to spread and seal the image. The second and subsequent colours are produced in the same manner.
Patent GB-422764-A (GB)
Title: Process for the manufacture of esters
IPC: C07C51/235
Filed: 1934-06-15
Abstract: Esters are produced by oxidizing with oxygen a mixture of an aldehyde and an alcohol; and mixtures of an ester and organic acid may be obtained by using an insufficient quantity of alcohol. Catalysts may be employed such as metals of variable valency or their compounds such as manganese and uranium salts, if desired in the presence of acids; for example, potassium permanganate dissolved in acetic acid containing a little sulphuric acid is suitable.  In examples: (1) acetaldehyde is placed in an autoclave and a mixture of ethyl alcohol, acetic acid, uranyl chloride and sulphuric acid is introduced gradually; after closing the autoclave oxygen is introduced and the temperature is raised to 40--50 DEG  C.; (2) propyl benzoate is made similarly from a mixture of benzaldehyde, propyl alcohol, hydrochloric acid and manganese chloride; isoamyl acetate and sodium acetate are made from a mixture of acetaldehyde, half the equivalent quantity of isoamyl alcohol, acetic acid, potassium permanganate and sulphuric acid, the product being neutralized with sodium carbonate and water added so that on distillation the ester is evolved as an azeotropic mixture.
Patent GB-942823-A (GB)
Title: A process for the production of planographic printing plates having an aluminium support
IPC: C07D285/135
Filed: 1960-09-26
Abstract: 942,823. Planographic printing plates. AGFA A. G. Sept. 26, 1960 [Sept. 26, 1959], No. 17813/63. Divided out of 942, 822. Headings G2C and G2M. A process for producing planographic printing plates comprises developing an exposed silver halide emulsion layer while in contact with an aluminium plate in a silver halide developer solution containing a silver halide solvent to form a reverse silver image on the plate and contacting the image with a 2-mercapto-1, 3, 4-thiadiazole derivative of the formula Contacting may be effected by treatment with an aqueous dispersion containing an organic hydrophilic film former, phosphoric acid or an acid phosphate to adjust the #H to between 4 and 6, and an emulsifier. Film formers specified are carboxymethyl cellulose, polyvinyl alcohol, gum Arabic, alginic acid and its esters, amides and alkali metal salts, and caragheenates. Several proprietary anion-active emulsifiers are specified. Specification 730,259 also is referred to.
Patent GB-1041382-A (GB)
Title: Apparatus for drilling spherical objects
IPC: B23Q1/48
Filed: 1963-03-04
Abstract: 1,041,382. Drilling. D. B. SCOTT. March 4, 1963 [March 5, 1962], No. 17849/66. Divided out of 1,041,381. Heading B3C. A machine for drilling thumb and finger holes in a ten pin bowling ball comprises first and second indicators, for providing adjustable ball drilling positions about a reference axis of the ball in accordance with desired span dimensions, and a third indicator to provide for the size of the holes, there being a link between at least two of the indicators to render them interdependent. The machine is as described in Specification 1,041,381.
Patent GB-624846-A (GB)
Title: Improvements in or relating to a method of making coloured mirrors
IPC: C03C17/22
Filed: 1945-07-12
Abstract: 624,846. Making coloured mirror. LIBBEYOWENS-FORD GLASS CO. July 12, 1945, No. 17853. Convention date, Jan. 25, 1943. Drawings to Specification. [Class 93] [Also in Group XX] A coloured mirror is formed by deposition onto a support placed within an aqueous bath of a metal sulphide formed by reaction within the bath which contains a metal salt, an alkali, an organic sulphur compound and a retarding agent comprising an organic material containing hydroxyl groups, deposition being terminated when the sulphide film is of a sufficient thickness to give the desired colour by interference. Aqueous solutions of the alkali, e.g. sodium hydroxide, the sulphur compound, e.g. thiourea, allyl thiourea or the amino acid cystine and the metal salt may be made up separately, one of the solutions containing the retarding agent, e.g. sodium potassium tartrate. These solutions are then combined and poured over the support which may be of glass, the final mixture containing between 0.5 and 2 per cent by weight of alkali, 0.2 - 5 per cent by weight of the sulphur compound, up to 2 per cent by weight of the metal salt and up to 6 per cent by weight of the retarding agent. The reaction continues at a constant temperature, preferably between 60 and 90‹ F., until the desired film thickness is attained. The film may then be given a substantially opaque coating as of shellac. Metals which may be used include silver, copper, cadmium, lead and zinc. Examples of the method are given in the Specification and spectral curves are shown. U.S.A. Specification 1,662,564 is referred to.
Patent GB-297517-A (GB)
Title: Telephone number indicator
IPC: H04M1/21
Filed: 1927-07-06
Abstract: 297,517. Gaunt, J., and Gaunt, L. E. July 6, 1927. Cylinders, rotating.-A telephone number indicator comprises independently rotatable discs B, arranged side by side on a spindle F, the discs bearing on their rims numerals or wording which can be inspected through a slotted cover I). Each disc B is formed at its side with registering teeth B<1>, which are engaged by the turned-up or rounded ends of springs E<1> fixed on the cover D.