baber/WOPTO huggingface dataset:
Patent GB-312534-A (GB)
Title: Construction of a fabry perot interferometer (etalon)
IPC: G01B9/02
Filed: 1928-07-11
Abstract: 312,534. Williams, W. E. July 11, 1928. Interferometers.-Optical interferometers of the reflection echelon or the Fabry Perot etalon type have the separation between successive reflecting surfaces maintained substantially constant by making the plates (in the one type) or the spacing means (in the other type) of fused silica or other material having a negligible coefficient of thermal expansion, the contacting surfaces being in optical contact. The echelon plates 1 are optical worked until plane parallel to a high degree of accuracy and are placed in optical contact, being but lightly held in a clamp comprising end plates 2 and rods 3 with nuts 4. The rods are of invar steel and the thickness of the washers 5 is chosen so that the resulting thermal expansion is the same as that of thet plates. The steps 6 are metallized by cathodic deposition. The two plates, 13, 14, Fig. 2, of the Fabry Perot interferometer are, spaced apart by three blocks 15 located at equal radial angles round the plates 13, 14. The ends of the blocks 15 are optically worked. Alternatively, a plate with turret portions or a ring of material may be used in place of the blocks 15. Each construction may be ' housed in a gas-tight chamber 7 provided with an optically worked window 8, and means for adjusting the gas pressure and of indicating the sameby electrical discharge.
Patent GB-1261365-A (GB)
Title: Improvements in or relating to semi conductive devices
Inventor: LINDMAYER JOSEPH
IPC: H01L21/336
Filed: 1969-04-21
Abstract: 1,261,365. Semi - conductor devices. SPRAGUE ELECTRIC CO. 21 April, 1969 [29 April, 1968], No. 20168/69. Heading H1K. The radiation resistance of an oxide coating on the semi-conductor body of a device is increased by introducing chromium and its oxides into the sites of non-regular bonds in the oxide lattice. In a typical embodiment an IGFET structure formed by diffusing spaced source and drain regions into a 10 ohm/cm. N-type silicon body is coated to a thickness of 1500 with silicon oxide by heating in oxygen. After heating in nitrogen to empty the sites of non-regular bonds and etching to thin the coating and expose the source and gate regions chromium is vapour deposited overall by electron bombardment of a pure chromium source and the assembly heated for 10 minutes at 450‹ C. to diffuse the chromium into the oxide. The residual surface chromium is then shape etched to form electrodes to which aluminium leads are bonded. Alternatively the chromium is removed and replaced by another electrode materal or is overcoated with such material.
Patent GB-1448073-A (GB)
Title: Space heating systems and apparatus
IPC: F24D5/08
Filed: 1974-05-08
Abstract: 1448073 Space-heating radiators RADIANT TUBE SYSTEMS Ltd 6 May 1975 [8 May 1974] 20179/74 Heading F4S A space-heating system comprises a closed loop of ducting, e.g. 22, a burner (e.g. within a duct section 15) discharging its combustion gases directly into the closed loop and a fan 16 for circulating said gases through the loop so as to heat the space primarily by radiant heat emission from the loop, the loop comprising a pair of parallel lengths 10, 11 of the ducting in which the combustion gases flow respectively in opposite directions, said lengths being interconnected by cross headers or ducting lengths 12, 13, and the arrangement being such that radiated beams of heat from the ducting lengths 10, 11 overlap above the ground level of the space. As shown in Fig. 3, each bank of the tubes 22 is flanked by convection-suppressing deflector plates 23, and upward radiation is reduced by a blanket 24 of heat insulating material. In use, a proportion of the circulating combustion gases is exhausted from the system through a bleed duct 21 to compensate for combustion air supplied to the burner, e.g. by a fan 19. Alternatively, Fig. 5, combustion air flow to the burner may be induced by locating the circulating fan 16 and the bleed duct 21, downstream of the burner. In an alternative ducting arrangement described (Fig. 6) the ducting comprises a plurality of tubes or a relatively large duct 30 conveying hot gases from the burner to a return header 32 discharging into two return ducts 33. Also described (Fig. 7) is an arrangement comprising a plurality of the closed loops.
Patent GB-1031641-A (GB)
Title: Method and apparatus for sampling physiological material
IPC: A61B10/02
Filed: 1961-06-05
Abstract: 1,031,641. Surgical testing. H. J. DAVIS. May 28,1962 [June 5,1961; Oct. 16, 1961; March 30, 1962], Nos. 20197/61, 37012/61 and 12327/62. Heading A5R. [Also in Division B1] A pipette, suitable for taking a sample of cellular material from a body cavity of a hospital patient, comprises a flexible bulb 12a, an auxiliary bulb 12b, and a tubular member 10 provided with a removable cap 14. The entire structure is preferably made of a soft or semi-soft synthetic resinous material, e.g. polyvinyl chloride, polyethylene or styrene. The pipette is first filled with an irrigating and preservative solution containing alcohol, salt and a small amount of a fungicide or antibiotic. The tubular member 10 is inserted in the body cavity, and the bulb 12a is squeezed to discharge the solution. The pressure on bulb 12a is then released, whereupon a suspension of cellular material in preservative solution is drawn into the pipette. The pipette is transported to the laboratory, and centrifuged in order to concentrate the cellular material into auxiliary bulb 12b. The supernatant liquid is discarded by manipulating bulb 12a. A fixing solution (90% alcohol, 10% ether) is aspirated into the pipette; and the cellular material is mixed with the fixing solution by manipulating bulb 12b. The pipette is again centrifuged to re-concentrate the cellular material in bulb 12b, which is then severed from the rest of the apparatus, e.g. by cutting at A. The cellular material is then distributed on a microscope slide.
Patent GB-148294-A (GB)
Title: Improvements in propellers
IPC: B64C11/24
Filed: 1920-07-09
Abstract: 148,294. Reissner, H. Feb. 19, 1917, [Convention date]. Addition to 148,175. Void [Published under Sect..91 of the Act]. Screw propellers. - A hollow sheet-metal propeller is provided with additional reinforcing-plates near the hub. The metal strips 1, 2 2<1> extend from the tip of one blade, beyond the hub to about two-thirds of the length of the opposite blade, the extended portion being on the opposite side of the blade. A third reinforcing- plate 8 may be provided at the central part of the blades. The reinforcing-plates may be narrowed towards their tips to preserve the contour of the blade, and their edges may be tapered. The central part of the propeller is constructed as described in the parent Specification.
Patent GB-1091064-A (GB)
Title: Reversing device for reversible or quarter-turn ploughs
IPC: A01B3/421
Filed: 1966-05-06
Abstract: 1,091,064. Reversible ploughs. HUARD UCF-SOC. ANON. DES ANCIENS ETS HUARD CARRIERE-GUYOT FONDEUR ET UNION CHARRUES FRANCE. May 6, 1966 [May 6, 1965; March 5, 1966], No. 20231/66. Heading A1B. . A reversible plough is provided with a single-action hydraulic jack 14 for rotating a plough beam 10 which is locked in the working positions by means of a lock 17 operated by a hydraulic jack 20 connected in series with the jack 14. The operation of the hydraulic jacks is controlled by a two position distributer 27. In the first position the hydraulic jacks are connected to a reservoir and in the second position the jacks are connected to a source of pressure fluid. The distributer 27 is automatically moved from the second position to the first position when excess pressure is set up in the hydraulic circuit.
Patent GB-355887-A (GB)
Title: Process for the manufacture of changeant glass
IPC: C03C17/02
Filed: 1930-07-03
Abstract: 355,887. Making coloured glassware. GLASHœTTENWERKE VORM. J. SCHREIBER & NEFFEN, Reitendorf, Czecho-Slovakia. July 3, 1930, No. 20252. Convention date, July 18, 1929. [Class 56.] Glassware which shows different colours according to the angle at which it is viewed is made by flashing or casing a coloured glass with at least one other glass of a different colour, the outer layer being wholly or partly transparent to the colour of the inner layer and also to a colour to which the inner layer is opaque. A selenium red glass, for example, can be cased with copper blue glass which is transparent to the red colour of the inner layer, whereas the inner layer is opaque to the blue.
Patent GB-882024-A (GB)
Title: Improvements relating to electric immersion heaters
Inventor: BYFORD GEORGE PLEDGER
IPC: H05B3/04
Filed: 1959-06-15
Abstract: 882,024. Electric immersion heaters. A.E.I.- HOTPOINT Ltd. May 6, 1960 [June 15, 1959], No. 20427/59. Class 39(3). In a sheathed wire electric immersion heater the header consists of an annular insulating member 4 having a screw threaded extension 5 through which the header is adapted to be secured to a mounting flange 20 or to the tank wall, the heating element 2 passing through openings in a metal plate 10 the sheath of 2 being hermetically secured to the metal plate 10, the plate 10 being clamped to an annular shoulder 13 formed within the screw-threaded extension 5 and a terminal block 11 is integral with the header. The heating element comprises a heater in an outer metal sheath with compacted refractory mineral insulation between. The annular insulating header 4 is of synthetic plastic, e.g. of superpolyamide type such as "nylon" (Registered Trade Mark) or of polyethylene known as "polythene" (Registered Trade Mark) and has a flange 6. The header and mounting flange 20 or tank wall have threaded portions engaging one another. The heating element 2 is welded or soldered to metal plate 10. The terminal block 11 is formed by moulding. A thermostat 3 is provided. There may be a plurality of heating elements. The metal plate 10 may be moulded within the header as in Specification 860,743. The header 4 and cover 7 have snap engagement as in Specification 874,851.
Patent GB-413873-A (GB)
Title: Improvements in paper containers
IPC: B65D3/26
Filed: 1933-07-20
Abstract: 413,873. Paper milk &c. cartons. HERRMANN, E. P., 279, 4th Avenue, East Orange, New Jersey, U.S.A. July 20, 1933, No. 20455. Convention date, Sept. 10, 1932. [Class 66.] In a paper vessel of the kind described in Specification 390,700, comprising a double thickness tubular body of truncated conical shape, formed by rolling up a blank, and provided with end closures, the end to be opened is formed with weakening lines 1, 2, Fig. 1, disposed as shown, a tab formed by a out 6, made at the point where the lines approach each other, lying adjacent to the edge of the outer portion A of the assembled vessel, as shown in Fig. 2. By pulling on the tab the wide and narrow strips 8 are removed together and the end 9 becomes detached as shown in Fig. 4. The weakening lines may be interrupted at 7 to afford a hinge portion, when complete detachment of the end is not desired. Fig. 5 shows a modified construction of the opening arrangement, cuts 10, 11 being formed in the edge of the portion A to afford access to the tab which is disposed therebeneath.
Patent GB-570354-A (GB)
Title: Improvements in or relating to rotary valve assemblies for liquid cooled internal combustion engines or the like
IPC: F01L7/08
Filed: 1943-12-07
Abstract: 570,354. Cooling valve seatings. ASPIN, F. M. Dec. 7, 1943, No. 20456. [Classes 7 (ii) and 7 (vi)] In a rotary valve assembly having a rotary valve 10 mounted in a plug-like housing 11 adapted to be secured in the end of the cylinder or in an extension 12 thereof, a cooling space 11a in the housing is connected to a cooling space 12a in the extension through registering holes in the outer and inner walls respectively of the two parts with resilient jointing means such as a rubber sleeve 17a which permits some tolerance of alignment and an apertured plug 17 or other securing means therefor, accessible through the outer wall of the extension &c. Two plugs are provided, one, 16, at the top of the cooling space 11a and the other, 17, at the bottom thereof and each plug com-- prises a conical end portion, an apertured intermediate part and a closed head 17b positioned by a removable cap member 19. The device is shown applied to a conical valve as described in Specification 564,850 and having a sealing ring 14 as set forth in Specification 570,286. In an alternative construction, the holes are countersunk and an endless rubber ring of round or other section replaces the sleeve 17a. Specifications 557,564 and 557,565 also are referred to.
Patent GB-480580-A (GB)
Title: Improvements in or relating to striking pins for fire-arms
IPC: F41A19/13
Filed: 1937-07-23
Abstract: 480,580. Firearms ; firing - pins. CESKA ZBROJOVKA AKCIOVA SPOLECNOST V PRAZE. July 23, 1937, No. 20473. Convention date, July 25, 1936. [Class 119] The actual striking point of the firing-pin of a firearm is made separately from the body part and is then secured to the body part of the firing-pin by driving the pin into the body part. The striking point is in the form of a pin 2 driven into the end of the body part 1. The striking point may be made from drawn steel wire, heat treated before being combined with the body.
Patent GB-535573-A (GB)
Title: Improvements in and relating to apparatus for separating dust and other suspended matter from air and other gases or vapours
IPC: B01D45/14
Filed: 1939-07-14
Abstract: 535,573. Centrifugal gas cleaner. HABER, E. J. July 14, 1939, No. 20543. [Class 23] Suspended matter is separated from gas, or gases separated from each other during flow over the surface of a partition or diaphragm with a large number of small openings through which the gas passes to an annular receiving chamber, while the suspended matter continues on its path to a collector. In the form of apparatus shown in Fig. 1, 2 a separating chamber 2 is formed by two partitions 3 each having openings 4 with pressed out portions 5 acting as louvres to deflect the gas. A rotary impeller 6 is arranged to draw the gas through the inlet 8 and pass it to the chamber 2. The clean gas passes through the openings 4 to the volute casing 13 and the outlet 14, while part of the gas with the suspended matter passes through the peripheral gap 10 to the volute passage 11 and the discharge outlet 12.
Patent GB-859195-A (GB)
Title: Method for making cheese
IPC: A23C19/072
Filed: 1959-06-16
Abstract: 859,195. Cheese. CHED-O-MATIC CORPORATION. June 16, 1959 [Oct. 23, 1958], No. 20580/59. Class 84. Drained curd from which most of the free whey has been removed, is pressed at a temperature favourable for acid development by constant application of a substantially uniform external pressure until all of the remaining whey has been drained off and the curd fused, and the fused curd mass is shredded and salted. To curd from which at least 90% of the free whey from a suspension of curds in whey having an acidity content of 0-17 to 0À23% has been drained, there is constantly applied a pressure of 1À80 to 2À10 lbs. per square inch gauge for from 90 to 120 minutes to obtain a fused curd mass of 0À5 to 0-8% acidity content and 35 to 40% moisture content ; the fused curd is shredded, washed with water at a temperature of 95 to 105‹F. and then salted either by spraying with a salt brine or with dry salt from a sprinkler to provide a salt concentration of 1 to 2% by weight of the cheese. The apparatus is substantially identical with the apparatus described and claimed in Specification 858,340 except that the perforated bottom plate provided in the whey expulsion press is replaced by a porous bottom 43, consisting of a metallic screen 44 covered with a cheese cloth 46, readily removable by the extrusion piston prior to extending the curd and cutting it into blocks.
Patent GB-351752-A (GB)
Title: Improvements in methods of repairing and filling up cavities, especially shrinkage holes, in metal objects
IPC: B22D19/10
Filed: 1930-07-07
Abstract: 351,752. Castings. METALLISATOR BERLIN AKT.-GES. and LOWENSTEIN, R., 30, Lahnstrasse, Neuk÷lln, Berlin. July 7, 1930, No. 20584. [Class 83 (i).] In a method of filling up shrinkage holes, blow holes, cracks and the like in metal objects such as castings, core pieces, preferably of electrolytic copper, are inserted in the direction of their length into the hole, which is enlarged to a roughly conical shape, and metal then sprayed in to fill up the remaining space. Fig. 2a shows such a cavity filled in the above manner but in which a soft metal 8a is first applied to surround the wedge-shaped core pieces 6 and partly fill the cavity, this being caulked or rammed down before the final filling 8 is applied.
Patent GB-446247-A (GB)
Title: Apparatus for improving the effects of short wave solar radiation
IPC: A01G7/04
Filed: 1934-07-13
Abstract: 446,247. Intensifying short-wave solar radiation. HOFBAUER, G., 19, Edmund Weissgasse, Vienna. July 13, 1934, No. 20606. Void [Abridged as open to inspection under Sect. 91 of the Acts, Jan. 14, 1935]. [Class 81 (ii)] [See also Group I] To increase the physiological and photochemical effects of sunlight, screens having thin metallic surfaces reflecting ultra - violet rays are placed around and if desired beneath the person or subject to be treated. The preferred metal is aluminium. The reflectors may be plane, cylindrical, spherical, or arranged in strips to form louvres. The Figure shows the use of a vertical screen y of tarboard sprayed or coated with aluminium and an inclined floor of boards covered with aluminium foil. A floor of metal-coated gravel may also. be used.
Patent GB-1135198-A (GB)
Title: Electric light fittings
Inventor: WARRENDER RONALD BENJAMIN FODE
IPC: F21V23/00
Filed: 1965-05-17
Abstract: 1,135,198. Electric light fittings. REVO ELECTRIC CO. Ltd. 21 June, 1966 [17 May, 1965], No. 20669/65. Heading F4R. In an electric light fitting comprising at least one fluorescent discharge tube 10 and associated electrical control gear, the tube and control gear are mounted on a base plate 14 of synthetic resin, some of the parts being held in place by attachment members formed integrally with the base plate. The fitting may comprise a canopy 11 and a translucent cover 12 forming a weatherproof enclosure. The base member 14 has slots in which are located spring clips 15 for engaging the pins on the tube. The control gear includes chokes 19 each having a flange at one end engaging a tongue 20, the member 14 and a flange at the other end secured by a screw to a boss 22 on the member 14. The starter 26 is held in a socket in the member 14 by spring clips 28. A capacitor 29 is also held on the base by integral clips. A terminal block 13 is secured to the canopy 11, sockets on the block engaging blades 33 on a terminal block on the member 14. Reference is made to the use of printed circuits on the base member.
Patent GB-359003-A (GB)
Title: Improvements relating to remote gauges for receptacles, containing liquids, such as petrol reservoirs for automobile vehicles
IPC: G01F23/30
Filed: 1930-07-08
Abstract: 359,003. Indicating liquid levels. ACCESSOIRE DE PRECISION, 76, Rue Gide, Levallois-Perret, Seine, France. July 8, 1930, No. 20699. Convention date, Feb. 15. [Class 123 (i).] In a liquid level indicator in which the movements of a float are transmitted through a flexible element 6 in a casing 7 of the Bowden type, the length of the casing is adjusted by means of a tubular element 9 which screws upon the casing and is then locked in its adjusted position by a nut 13 against a collar 12 on a fixed member 8. The end of the element 6 is attached directly to a pointer 5, Fig. 2. In a modification, Fig. 4, the part 9 is secured against longitudinal movement by a U-shaped key 16, and against rotary movement by a pin 17 engaging in one of the notches of a toothed crown 18 on the fixed member 8. In another modification, Fig. 8 (not shown), flanges on the parts 8, 9 are secured together by a split pin, in another form, Fig. 6 (not shown), the part 9 is secured on the flexible casing by a set-screw, and in Fig. 7 (not shown), the part 9 is split longitudinally and then clamped on the flexible casing. In another form, Fig. 13, the part 9 is provided with flexible prongs 28 the ends of which engage in the fixed part 8 and are secured by a ring 32 sliding over the prongs.
Patent GB-968667-A (GB)
Title: Laminated fabrics
Inventor: MORGAN SYDNEY EDWARD
IPC: A41D27/18
Filed: 1959-06-17
Abstract: A prefabricated undercollar assembly material comprises a melton or felt material and a canvas or other stiffening cloth secured together over their abutting faces at isolated spots by means of a thermoplastic synthetic resin adhesive.  A suitable adhesive is a vinyl copolymer, such as "Bakelite" (Registered Trade Mark) VYHH with a plasticizer such as dioctyl phthalate. For example a linen fabric may be coated with granules of the resin, heated to soften the resin, the melton applied, and the combination passed through rollers to form the assembly.  A collar may be made by cutting from this assembly an undercollar of the exact size and shape of the finished collar, and attaching the desired facing cloth.
Patent GB-1349884-A (GB)
Title: Information retrieval systems
IPC: H04Q9/14
Filed: 1971-04-19
Abstract: 1349884 Selective signalling HONEYWELL Inc 19 April 1971 [25 Feb 1970] 20823/71 Heading G4H In a system having a central station and a plurality of groups of remote stations, each group has connecting means which sequentially connects the stations of the group to the central station, the groups transmitting simultaneously through respective channels, whereby upon transmission of a scanning signal (being at least one bit of an address signal sent) by the central station the remote stations in each group are sequentially scanned by the respective connecting means and the information relating to their condition is transmitted thereby to the central station where it is stored. In general, a given channel has more than one group associated with it, the scanning signal being accompanied by an address to select the group to be scanned. Each station is a switch in an air-conditioning monitoring system and the information sent to the central station about it including an indication of the data type, a status bit indicating open or closed, a bit indicating whether the status has changed since the last scan, a bit indicating whether it is the last station in the group, and a bit indicating whether it is the last station in the channel. The stored information at the central station is processed to control a printer. All messages to the central station are sent twice and compared for error detection, inequality causing up to three retransmissions from the erroneous channel, an error indication being given if error-free transmission is not obtained during this. Failure to receive a message over a given channel similarly causes repeated requests for transmission, &c.
Patent GB-149220-A (GB)
Title: Oil-wagon tank
IPC: B61D5/02
Filed: 1920-07-12
Abstract: 149,220. Davis Welding & Manufacturing Co., (Assignees of Davis, A.). June 22, 1914, [Convention date]. Tank carts.-The compartmented tank of an oil-wagon is built up of a number of shells 3, 4 provided with heads 13, 14, 17, and 18 united by external welds 16, 21 to the overlapping portions of the shells, adjacent compartment heads 17, 18 being reversely flanged and the flanges 19 bent outwardly at 20 and united by an external weld 22, so as to form a double-spaced partition between the compartments.