baber/WOPTO huggingface dataset:
Patent GB-1385794-A (GB)
Title: Material handling apparatus
IPC: B21D43/08
Filed: 1972-01-31
Abstract: 1385794 Bending press feed BOLDRINI SA 31 Jan 1972 [5 Aug 1971] 4501/72 Heading B3E Sheet metal 11 is located and advanced, e.g. to a bending press, by devices each consisting of two rollers 1, 3, one engaging a face of the sheet and the other an adjacent edge, the two rollers having axes at right angles and having a common drive, which as shown is an hydraulic motor 2 on a housing 4. The two devices shown are adjustable for different sheet widths by a double lead screw 21, 22, and each can be raised and lowered in vertical guides one of which constitutes a piston and cylinder drive. Lifting and advancing of the sheet may be automatically controlled with the press operation.
Patent GB-1317704-A (GB)
Title: Atomic absorption analyzer compensated for background absorption
IPC: G01N21/31
Filed: 1972-02-01
Abstract: 1317704 Absorption spectroscopy BECKMAN INSTRUMENTS Inc 1 Feb 1972 [16 Feb 1971] 4546/72 Heading G1A In a flame spectrometer a narrow bandwidth source 10, Fig.2, corresponding to the absorption wavelength of the atom being investigated and a wide band source 11 are each applied sequentially through the sample flame path 21 and reference path 17 and the four pulses corresponding to the four path traversals are logged and subtracted in tandem stages to provide a signal proportional to the absorbance of free atoms in the flame and which is independent of background absorption. A hollow cathode lamp may provide a narrow wavelength source and a monochromator may be used for further selection.
Patent GB-575352-A (GB)
Title: Improvements in and relating to the construction of floorings, ceilings, wallings and the like
IPC: E04B5/10
Filed: 1944-03-11
Abstract: 575,352. Floors, ceilings and walls. PLUMMER, H. L., and IRWIN, D. L. March 11, 1944, No. 4559. [Classes 20 (ii) and 20 (iv)] Structural units for floors, ceilings, walls and the like are U-section, the free ends of one or both limbs of all or some of said units being bent to form, in association with an adjacent limb of a similar unit, a housing for the reception of a slater's batten or other filling piece for attaching panelling or other covering. In the form shown the U-shaped metal units 1 have the free ends of their limbs 2 and 2a so bent as to form a channel 3 and flanges 4 and 4a, which in association with adjacent units form a housing for the batten 14, to which the floor or ceiling covering is attached. The limbs 2 and 2a are rebated at 5 and 5a forming inwardly directed flanges 6 and 6a supporting the limbs on T-members or in channels formed in the walls.
Patent GB-304036-A (GB)
Title: Improvements in and relating to submarine sound signalling or indicating apparatus
IPC: G01S1/72
Filed: 1916-03-28
Abstract: 304,036. Ryan, C. P. March 28, 1916. 1927. Detecting subaqueous sounds. - Apparatus for detecting subaqueous sounds comprises a hydrophone or magnetophone connected to a, diaphragm mounted in a streamline casing attached to a buoy or vessel, the mounting of the diaphragm being such as to eliminate water noise. The diaphragm 9, Fig. 3, is mounted in a heavy ring or two heavy rings with packing between, the ring being of such mass that its own vibrations do not affect the diaphragm, the latter being selected of a natural frequency between that of the low and high frequency water noises. The casing 8 is of stream line form and is carried from a buoy 1, Fig. 1, provided with a directing vane 7, the leads from the microphone passing through the mooring cable 2 clamped in an anchored coupling 3. To avoid water noises from the cable, rubber block grips are provided in the brackets 6 through which the cable passes. A hammer 10, Fig. 3, to tap the microphone to prevent packing is operated from the armature of a magnet 11, one terminal of which is earthed, the other being connected through a condenser to the cable so as to permit of actuation by a magneto at the observer's station, Instead of a microphone, a magnetophone may be employed, the diaphragm 9', Fig. 4, which may be the cover of a buoy, being attached by a clamp 16 to a reed 12 clamped a.t 13 to a permanent magnet 14, the pole-pieces of which carry coils 17 and are in proximity to the free end of the reed. The casing 8 of the diaphragm may be attached to a ship. In a modification the diaphragm directly receiving the vibrations may be fitted in the buoy or vessel and connected to the diaphragm of the magnetophone. fitted inside the buoy by a light spring-tensioned chain or flexible member.
Patent GB-762205-A (GB)
Title: Purification of acrylonitrile
Inventor: BESSANT KENNETH HENRY CHARLES
Filed: 1954-02-17
Abstract: Acrylonitrile oil, the acrylonitrile containing traces of impurities obtained according to the process of Specification 719,635, is purified by treatment with an aqueous solution of an alkali metal sulphite followed by fractionation to recover the acrylonitrile.  The treatment with the alkali metal sulphite may be carried out continuously and the acrylonitrile oil may be washed with water after the treatment with the alkali metal sulphite.  In an example, crude acrylonitrile, obtained by passing a mixture of acrolein, ammonia and air over a molybdic acid catalyst is scrubbed with dilute sulphuric acid and water and the aqueous extract is distilled.  Crude acrylonitrile is separated, allowed to stand until free from hydrogen cyanide and fractionated to obtain acrylonitrile oil.  A portion of the latter is treated twice with aqueous sodium sulphite, washed with water, distilled, polymerized and spun into threads.  For comparison, threads are similarly prepared from a further portion of the acrylonitrile oil omitting the treatment with alkali metal sulphite and from a further portion which has been washed with water. Specification 709,337 also is referred to.
Patent GB-673224-A (GB)
Title: Improvements in or relating to photosensitive cathode films
IPC: H01J29/38
Filed: 1950-02-23
Abstract: A photo-electric cathode comprises alkali metal on a layer of silver bismuth alloy.  The ratio of silver to bismuth may be between 80 to 20 and 98 to 2 and is preferably 90 to 10, 92.5 to 7.5, 93.5 to 6.5 or 95 to 5.  Alloys of 50 to 50 and 97.5 to 2.5 are stated to give a cathode which is less sensitive.
Patent GB-563264-A (GB)
Title: Improvements in angle plates
IPC: B23Q3/10
Filed: 1943-03-23
Abstract: 563,264. Angle plates. HARTNOLL, C. F., and LEHAN, P. J. March 23, 1943, No. 4715. [Class 61 (ii)] [Also in Group XXII] A combined angle plate and V-block for holding work as at 6 during various machine operations consists of an angle plate provided in the angle between the vertical wall 1 and horizontal wall 2 with an integrally formed buttress 3 having splayed sides 4, the upper face 7 which is formed with the V-groove 5 being in the plane of the edge face of the vertical wall. A hole 10 extends'through the buttress to take a mandrel used for setting of the work and the face of the wall 1 is provided with a cut-away area 11 to take a workpiece held by a clamping plate 14 and clamp screws 15, 17.
Patent GB-1484979-A (GB)
Title: Skid control system for two-wheeled vehicles
IPC: B60T8/78
Filed: 1975-02-04
Abstract: 1484979 Aritiskid braking systems KELSEYHAYES CO 4 Feb 1975 [4 Feb 1974] 4729/75 Heading F2F An antiskid braking system comprises a wheel speed sensor 12, a wheel speed signal generator connected thereto for generating a signal representative of wheel rotational speed, a vehicle speed signal generator 26 a comparator circuit 30 connected to the generators for providing an output signal when the two signals achieve a preselected relationship, a circuit for generating an output signal to control the vehicle brakes, a power supply connected to the signal generators and comparator circuit and a failure detector, for sensing the open or shorted condition of the wheel speed sensor, including means for shutting down the power supply if such failure is detected. The wheel speed sensor produces pulses at the input terminals 46, 48 at a frequency proportional to wheel speed and a sensing circuit 76 connected to terminals 46, 48 by conductors 78, 80 determines whether the sensor is shorted or open circuited and produces an output signal at a conductor 82 through a diode 84 which conductor 82 is connected to a fail-safe circuit 40 which also senses operation of the comparator and includes a circuit for checking when the output driver circuit 32 has provided an output signal for an excessive length of time or has failed to produce an output when required. In the event of malfunction the circuit 40 produces an output signal on a conductor 292 to supply a firing voltage for a controlled rectifier 294 which conducts and shunts the base supply of a transistor 262 to shut it off and eliminate the supply of voltage to conductors 276, 278 and shut down the skid control module.
Patent GB-484341-A (GB)
Title: Improvements in or relating to floating tablets of milled soap
IPC: C11D17/02
Filed: 1937-02-17
Abstract: <PICT:0484341/III/1> <PICT:0484341/III/2> A floating tablet 10 of milled toilet soap is obtained by forming a plurality of internal cavities 11 substantially midway between the top and bottom faces. The cavities may be of rectangular, circular, oval, or other cross-section; preferably the outer side walls of soap are thicker than the outer end walls.  Suitably, a blank tablet 10 in a die-box 12 is recessed by displacing means 14, stamped by the main dies, the dies and means 14 are withdrawn, and the cavities are closed by forcing together the shell dies 17, 18.
Patent GB-1300462-A (GB)
Title: Improvements in or relating to ball and socket joints
IPC: F16C11/06
Filed: 1970-02-02
Abstract: 1300462 Dust seal O & S BEARING & MFG CO 2 Feb 1970 [28 Nov 1969] 4809/70 Heading E2F [Also in Division F2] In a ball and socket joint, a dust seal comprises an annular collar to prevent entrapment of the walls of the seal between moving parts of the joint. In the figure, flexible cup-like dust seal 42 has a thickened bottom wall 50 provided with an inwardly extending collar 54 which prevents the seal from entering the space 60 if the collar works down toward the ball 30 of the ball and socket joint. Undulations 49 facilitate stretching and folding while preventing inward collapsing of the walls.
Patent GB-198026-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M9/06
Filed: 1922-02-18
Abstract: 198,026. Morris, M. C. Feb. 18, 1922. Spray carburettors.- A tubular member of smaller diameter than the mixing-chamber is reciprocated axially over the fuel nozzle in synchronism with the movement of the main air valve, and is provided with diametrically opposite and longitudinally arranged openings which are wider at one end than the other, and reversed in position as regards their wide and narrow ends. The openings are arranged so that the wide end of the opening on the air inlet side, and the narrow end of the opening on the engine side, are brought on a level with the fuel outlet on the commencement of the opening movement of the air valve. As shown in Figs. 2 and 3, a piston air valve 15, which may be actuated by a Bowden wire or other mechanism, carries a tubular member 18 which fits loosely over the nozzle 5, and is provided with V-shaped openings 20, 21 on the air inlet and engine side respectively. The openings may be V-shaped or tapering for a. portion of their length only and continued in a narrow parallel sided or more slowly tapering slot, or they may be rectangular, circular, oval, or elliptical at their wide end. In a modification, the openingsare replaced by a series of closely adjacent holes of varying size. The openings on the two sides of the member may be of different forms. The fuel nozzle may have an axial or transverse outlet or both. One or more auxiliary air passages, for example a passage 23, may be provided in the piston, leading from the air inlet side to the interior of the tubular member, the passage being occluded by the casing as the piston its raised; the passage may communicate with the atmosphere through a valve-controlled orifice in the casing. An extra air inlet may be provided also on the engine side of the nozzle, the stream of air being directed obliquely to the axis of the mixing-chamber. Specifications 2051/11, 4381/12' and 162,369 are referred to.
Patent GB-764669-A (GB)
Title: Improvements in or relating to electric waveguide filters
Inventor: LEWIN LEONARD
IPC: H01P1/213
Filed: 1955-02-18
Abstract: 764,669. Waveguide networks. STANDARD TELEPHONES & CABLES, Ltd. Feb. 18, 1955 [No. 4931/55. Class 40 (8). A channel separating or combing arrangement comprises a number of waveguide filter sections commimicating with a common central junction coupled to a transmission line. The filter sections are each tuned to a different channel and may comprise waveguides 1, 2, 3, 4 having sets of posts 5, 6 defining resonant sections tuned by screws 7. An input waveguide 9 (not shown in Fig. 1) having a matching diaphragm 13 is coupled to the junction 8 by means of a metal post 11. Each filter section acts as a short circuit for frequencies lying outside the pass band of that section. Further sets of radially-arranged sections may be added on either side of the input guide 9, the post 11 being extended into the junctions of the additional sets. The input guide 9 preferably lies at 45 degrees to two adjacent filter sections. Provision for an additional channel may be made by replacing the terminal short circuit 10 of the guide 9 by a further filter section. A number of groups of guides may be arranged in a stack and may be coupled by short lengths of coaxial line of which the probe 11 forms the central conductor.
Patent GB-646184-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04K1/04
Filed: 1948-02-19
Abstract: 646,184. Secret transmission. GENERAL ELECTRIC CO., Ltd., and BRYDEN, J. E. Feb. 19, 1948, No. 4939. [Class 40 (iv)] In a secret signalling system in which the signal is transmitted with and without frequency inversion alternately at a rate which renders separate portions of the chopped signal unintelligible, the switching is effected by the output of an oscillator which is also transmitted as a pilot for reconstituting the received signal. Speech for transmission after passing through a band-pass filter 1 and an equalizer 2 is applied of a modulator 8, of the type described in Specification 417,251, [Group XL], and a static relay 11 in parallel which are influenced by alternate continguous pulses of oscillations of frequencies 3 and 3.12 kc/s., respectively, from an oscillator 4. The former are applied through a filter 6 to invert the signal and the latter after rectification and amplification permits the passage of the normal signal to line. The alternate outputs from the modulator 8 and the relay 11 are combined and pass to line through a filter 3. The oscillator output which is sent with the signal as a pilot for the reconstitution of the original signal may be scrambled to give additional secrecy. In a similar apparatus at the receiver the signal and pilot frequencies are separated by a filter 3 so that the signal is applied to the modulator 8 and the static relay 11. The pilot-signal effects the control instead of the local oscillator, and the original signal is reconstituted at the output terminals of the band-pass filter 1.
Patent GB-1044821-A (GB)
Title: Alkyd resins and their use with aminoplast resins in enamels
IPC: C08G63/668
Filed: 1964-02-05
Abstract: A polyester resin of acid number 40-95 is prepared from (a) a glyceride oil or glycerol and a glyceride oil fatty acid, (b) a polycarboxylic acid or an anhydride or a mixture thereof, (c) a polyhydric alcohol and (d) a polyoxyalkylene polyol having a molecular weight of 1100-2600, prepared by adding an alkylene oxide to an aliphatic polyol having at least 3 hydroxyl groups. Glyceride oils specified are: soybean, linseed, cocoanut, sunflower seed, corn, castor, cottonseed, tung, tall, fish, isano, oiticica, dehydrated castor and mixtures thereof.  Glyceride oil fatty acids specified are pelargonic, stearic, palmitic, lauric acids and those derived from tall, linseed and soyabean oil.  The percentage of glyceride oil may be 1-45.  The dicarboxylic acid or anhydride may be phthalic anhydride optionally mixed with trimellitic, tetrahydrophthalic, hexahydrophthalic, isophthalic, succinic, adipic or sebacic acids or anhydrides.  1.5% of maleic or fumaric acid may also be present. Polyhydric alcohols specified are glycerol, mono-, di- and tri-ethylene glycols, mono-, di- and tri-propylene glycols, pentaerythritol, sorbitol, mannitol, butylene glycols, neopentylene glycol, trimethylol ethane and trimethylol propane.  The polyoxyalkylene polyol may be prepared from an alkylene oxide, e.g. ethylene, propylene or butylene oxide, and an aliphatic polyol having 3 or more hydroyl groups, e.g. glycerol, pentaerythritol, sorbitol, mannitol, trimethylol ethane or trimethylol propane.  1-25% of the resin may be polyalkylene polyol.  The ester forming reaction may be at 180-240 DEG  C.  In examples sodium methoxide catalyst is used.  A baking enamel may comprise the alkyd resin, 10-40% of a lower alkanol modified aminoplastic resin and then 30-60% water.  1-3 moles of formaldehyde may be used per mole of amino group in the resin.  The amine may be urea or an aminotriazine.  The baking enamel may contain 3.3-8 hydroxyl groups per amino group and may contain a base, e.g. trimethylamine, triethylamine or dimethylethanolamine to give a pH of 7-9.5.  Other additives which may be present are diols, e.g. ethylene, propylene, butylene or hexylene glycols or 2-methylpentane-2,4-diol and surface active agents, e.g. a composition of ditertiary acetylenic glycol, an alkyl phenyl ether of polyethylene glycol and ethylene glycol.
Patent GB-555233-A (GB)
Title: Improvement in anti-oxidants
IPC: C11B5/00
Filed: 1942-04-16
Abstract: 555,233. Stabilizing oils and soaps. UNITED STATES RUBBER CO. April 16, 1942, No. 5053. Convention date, June 4, 1941. [Class 91] [Also in Groups V and IV] Antioxidants for unsaturated vegetable or other fatty oils, essential oils, petroleum oils and their derivatives, e.g. gasoline and lubricants, and for soaps comprise the reaction products of a diene with a primary or secondary aromatic amine. Dienes specified include butadiene and derivatives thereof, isoprene, hexadiene, heptadiene, cyclopentadiene and cyclohexadiene. Aromatic amines specified include aniline, toluidine, anisidine, phenetidine, naphthylamine, phenylene and naphthalene diamines, benzidine, p-chloro- and p-bromo-aniline and diaminodiphenyl disulphide. The reaction products are thought to include heterocyclic substances of saturated quinoline and indole structure and may be resinous or crystalline. The reaction products of aniline and butadiene, for example, may include 2-methyl tetrahydroquinoline, 2- ethyl-2, 3-dihydroindole, and 2, 3-dimethyl-2, 3-dihydroindole.
Patent GB-926394-A (GB)
Title: Improvements in or relating to propulsion plant
Inventor: CLARK N M
IPC: B63H23/20
Filed: 1961-02-10
Abstract: 926,394. Turbine plant. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Jan. 26, 1962 [Feb. 10, 1961], No. 5056/61. Class 110 (3). [Also in Group XXXIII] In a propulsion plant having a free-piston gas generator 1 supplying working fluid via a valve 6 to either pipe 10 or 11 into a forward propulsion turbine 12 or a reverse propulsion turbine 13, the turbine 12 has a shaft 16, one end of which drives, via gears 17-20, the output shaft 21 while the other carries an element 23 of a planetary gear, the turbine 13 has a shaft 39 to which is secured another element (38) of the planetary gear, and a brake 30 normally held inoperative by a spring 37 is operable by a hydraulic motor 35 to engage a disc 29 on the carrier 28 of the planetary gear to lock the latter against rotation. Normally the valve 6 is moved to close supply line 11 and open supply line 10 so that the forward propulsion turbine 12 drives the output shaft 21 via the shaft 16 which also drives the element 23, causing wheels (planet wheels in the case of epicyclic gearing and wheels 24 in the case of the differential gearing shown) to perform planetary motion around the element 38 because the latter is restrained by the turbine 13, the carrier 28 rotating so that there is no effective drive to the reversing turbine. For reverse propulsion, valve 6 is moved to close supply line 10 and open the line 11 so that the turbine 13 operates to drive shaft 39 and element 38, the brake 30 having been operated to hold the carrier 28. Hence element 38 rotates the wheels of the planetary gears (wheels 24 in this embodiment), which drive the element 23, shaft 16 and output shaft 21 in the reverse drive direction.
Patent GB-853491-A (GB)
Title: Apparatus for machining workpieces
IPC: B23D77/02
Filed: 1957-02-14
Abstract: 853,491. Boring and milling metals; altering physical structure. PREIS, G. Feb. 14, 1957 [Feb. 14, 1956; Aug. 4, 1956], No. 5115/57. Classes 83 (3) and 83 (4). A cutting-tool for finishing hollow cylindrical workpieces. comprises a cylindrical holder carrying radial teeth having curved cutting-edges which are radially-adjustable or inclined relative to the longitudinal axis of the holder to vary the effective cutting-diameter of the tool. In one example teeth 10, Fig. 1, are slidably-mounted in radial slots 26, Fig. 1a, of a holder 16, and have spherical recesses 14 at one end for engagement with balls 15 supported between a conical ring 16 and wedges 18 secured to the holder by bolts 17, 19, and a bearing-ring 21. The teeth 10 are pressed against the balls 15 by screwed rings 12, 13 engaging inclined faces 30 of the teeth 10 to adjust the ends of the teeth 10 radially. Plane surfaces may be machined if the tool is mounted on the spindle of a milling- machine. In another example a cutting-ring 31, Fig. 3, with generally spherical teeth; is angularly adjustable over a spherical section 33 of a holder 34 and is keyed thereto by Woodruff keys 35 engaging longitudinal grooves 331, 351. The cutting-ring 31 is set to any inclined position by screws 41, 42, engaging one of a pair of rings 36, 37, pivoted at 39, 40, on the holder 34 and engaging opposite faces of the ring 31. A further screw 44 engaging the pivot 40 secures the assembly in adjusted position. In a modification, the radius-of-curvature 47, Fig. 4, of the cutting-teeth 311 is greater than the central radius 45 of the tool, so that tilting of the cutting-ring 31 increases the effective diameter of the tool. Altering physical structure by mechanical treatment.-The tool is used in a process for finishing close fits in workpieces of grey cast iron, light metal, bronze &c. The bores are first rough-machined and then work-hardened to a depth of one to three millimetres by rolling. After finish-machining with the tool, the surface irregularities are removed by finish rolling.
Patent GB-179340-A (GB)
Title: Improvements in or relating to means for hinging the lids of saucepans and such like hollow-ware articles
IPC: A47J36/12
Filed: 1921-02-15
Abstract: 179,340. Harris, G. G. Feb. 15, 1921. Lids.-The lid of a saucenan or other hollowware vessel is held by means of its handle in a clip 14, Fig. 1, formed at the end of an arm 2, the other end of the arm being pivotally held in a fitting 3 mounted on the handle of the vessel. The fitting comprises a pair of clips 5, 10, Fig. 3, encircling the handle, the clip 5 being integral with a lug 6 to which the arm 2 is pivoted by a rivet 13. To enable the arm to be supported in any desired position a bent plate spring 15, Fig. 2, is provided carrying at one end a bevelled pin 16, and having at the other end a tongue 18 engaging a slot in the arm, the pin 16 being adapted to pass through a perforation in the outer end of the arm 2 and to take in to any one of a series of depressions or perforations 17 formed in the lug 6. The clip 14 is formed by bending the metal of the arm upon itself into a loop, which affords an adjustment enabling the device to be applied to pans of different sizes.