baber/WOPTO huggingface dataset:
Patent GB-1097773-A (GB)
Title: Improvements in electric switches and fluid valves
Inventor: STRIPP PETER WILLIAM
IPC: B01D35/143
Filed: 1963-05-28
Abstract: 1,097,773. Oil filter. TECALEMIT (ENGINEERING) Ltd. May 28, 1964 [May 28, 1963], No. 21255/63. Heading B1D. [Also in Divisions F2 and H2] When the pressure drop across an engine oil-filter reaches a given value it overcomes a spring 21, and lifts a pin 23 into contact with a member 26 so completing an electric warning circuit; any subsequent increase in the pressure drop will cause unseating of a poppet relief valve 17, in and through which the pin 23 slides, to by-pass the filter. In another form, a body part between the filter and the engine is made of a polyester resin with a reinforcement of, e.g. glass fibres so that separate insulation for the fixed switch contact and leads is not required, thereby enabling brass strip to be used for these parts. The valve is similar to that described above but the lower end of the cylindrical extension of the poppet, in which slides a piston connected to the pin, is closed by a flexible cap through which the pin and piston are elevated. The body part may have a lateral flange for connection to the engine, through which flange pass both the air flow and return passages; the latter may be oppositely disposed.
Patent GB-1224055-A (GB)
Title: Method for effecting the electronic amplification of vibrations from drums, or like percussive diaphragm musical instruments, without the use of microphones and related devices
IPC: G10H3/14
Filed: 1968-05-06
Abstract: 1,224,055. Electrically amplified musical drums. MEAZZI S.R.L., F. CALDIRONI, and A. OLIVIERI. 6 May, 1968 [10 May, 1967], No. 21325/68. Heading G5J. The vibrations of a drum diaphragm are picked-up and amplified by magnetic material vibrating with the diaphragm and co-operating with an electromagnet. In one embodiment, Fig. 1, a plate of magnetic material is attached to the centre of the diaphragm 11 of the drum 12 and is arranged to co-operate magnetically with a coil 14 which is connected through leads 16 to an amplifier. A magnetic shield 15 is arranged around coil 14, the electromagnet assembly being attached to the side of the drum by a support 13. In an alternative embodiment, Fig. 2 (not shown), which is more suitable for drums in which the amplitude of the vibrations is large, the magnet is actuated by vibrations of the diaphragm through a pivotal lever (17). A small pan (19) attached to lever (17) carries a resilient pad (20) which bears against the diaphragm of the drum under the action of a spring (21) which is adjustable by a screw (22) threaded into the support (13).
Patent GB-860874-A (GB)
Title: Method and means for copying work pieces
IPC: B23Q35/48
Filed: 1957-07-05
Abstract: 860,874. Copy-grinding. STARRFRAESMASCHINEN A.G. July 5, 1957 [July 7, 1956], No. 21394/57. Class 60. [Also in Group XXII] A method of copy-grinding a lengthy workpiece 13 with a non-planar surface comprises relatively traversing a tracer 14 along a template 12 at a speed lower than that of the tool along the work whilst movements in other directions are at the same speed, the axis of the tool 15 lying in the direction of traverse. A vertically-adjustable beam 5 carries a crossslide 6 having an angularly-adjustable toolhead 7. The slide 6 also carries the tracer 14 adjustable vertically and laterally. The template 12 is carried on a slide 11 and the workpiece 13 on a slide 2. The slides 2 and 11 are moved at speeds proportional to the lengths of the workpiece and template by mechanical, hydraulic or electrical variable-speed means. The two slides are reversed in movement either by dogs 16 on the table 2 and a switch 17 or, when the tapering edges of workpieces are being machined, by contacts 19 on the tractor head and rails 18 on the slide 11. After each traverse, the slide 6 is given an increment of cross-feed. Instead of moving the work and template, the tracer and tool may be traversed.
Patent GB-581070-A (GB)
Title: Improvements in relief stamping and printing machines
Filed: 1944-11-02
Abstract: 581,070. Printing-machines. DORIN A. Nov. 2, 1944, No. 21465. [Class 100 (ii)] Engraved-plate printing; inking-apparatus; stopping arrangements. A relief stamping and printing machine comprises a vertical shaft 11, Figs. 2 and 3, carrying a radial arm 12 to which a die 13 is fixed face downwards, the shaft 11 being oscillated at each cycle of operation so as to carry the die from the printing position over an inking- device 20 and a wiping- device 24 and back to the printing position where an impression plate 22 is reciprocated vertically and in suitable phase relation to the movement of the shaft so as to force the paper or other material against the die. Fig. 2 shows the angular setting of the units, the impression and inking devices being 165‹ apart, and the wiping device and a device 25 for advancing a wiping-band being diametrically opposite or on a line parallel to a diameter. The shaft 11 is driven by an hydraulicallyoperated vane 15, and the plate 22 is actuated by an hydraulic piston 23, the upward thrust of which is taken by a crossbar 33 provided with a bevelled surface 35 to engage a bevel on the arm 12. The inking-apparatus comprises an inking- roller 63, Fig. 6, mounted in a frame 65 pivoted about the axis of a duct-roller 61 and pressed against the die by a spring 66 encircling a rod 73 operated to raise and lower the frame 65 by a cam-actuated lever. An ink-transfer roller 62 is mounted in a frame 69 pivoted about the axis of the roller 63 and connected by a spring 71 to the frame 65, the pressure of the roller 62 on the roller 61 being varied by means of a screw 70. The frame 69 also carries spring-pressed scrapers 74 pivoted about shafts 76 eccentrically mounted to vary the scraping pressure. The wiping-device comprises a paper or textile band 100, Fig. 8, passing over a pad 53, which can be rocked about a pivot 54 to bring either of two surfaces a and b into use. The band may be wound on to a take-up roller or may be endless, passing through a tank 101 of cleansing fluid and then past an electric drier 102. The take-up roller is rotated intermittently from a shaft 26, Fig. 2, operated by a pawl 28 rocked by a cam 32 on the arm 12. Sheets are fed from a table to printing position and held there, and are subsequently delivered by suction pads on a pair of oscillating arms. A motor 84, Fig. 3, drives a compressor 83 direct and, through a gearbox 81, a shaft 85 driving the inking-rollers by a chain and carrying cams 87 for raising and lowering the inking and wiping mechanisms. Cams 95 controlling the fluid to the vane 15 and piston 23, and a gear driving a shaft from which the sheet-feed arms and sheet-clamps are operated, are driven from the shaft 85 through a coupling 93 controlled by a handle 56. The handle may be positioned so that (1) the motor, pump and inking-devices only are in operation, (2) the shaft 11 and impression plunger 21 are operated without vertical movement of the inking and wiping devices, and (3) for complete operation of the machine.
Patent GB-188755-A (GB)
Title: Cake tins
IPC: A21B3/13
Filed: 1921-08-13
Abstract: 188,755. Boylett, F. Aug. 13, 1921. Baking and like tins.-Cake tins are constructed of two similar parts hinged together at c, ears f being stamped out of the parts to support the loose bottom d. The free edge of one part is fitted with a hinged portion g formed with a slot through which a twin-bottom h on the other part can be passed to secure the parts together after inserting the bottom. The tins may be of round shape, as shown, or oblong.
Patent GB-587253-A (GB)
Title: Improvements in or relating to the treatment and printing of textile sheets or webs
IPC: D06P5/00
Filed: 1944-11-02
Abstract: 587,253. Treating and printing fabrics. UNDERHILL, L. C., UNDERHILL, D., and HARRISON, E. J. Nov. 2, 1944, Nos. 21512/44 and 4404/45. [Class 100 (ii)] In a method of treating and printing textile sheets wherein each sheet is stiffened before printing, each sheet is treated with a water-soluble binding material in solution, dried and printed, and, in the case where a pliable sheet is desired the sheet is washed after printing, or, where a sheet is required for use in the open, such as a map, the sheet is dried and treated with an insolubilizing agent before printing. In a modification, a textile web has its marginal portions and equally spaced transverse bands thereof treated with a liquid that on setting or drying stiffens the treated portions, the web is severed after drying to provide sheets each of which is stiffened around its margin, and the sheets are then printed. The liquid may be a solution of a cellulose ester in an organic solvent such as amyl acetate and may contain a plasticiser and a filler. The margins and equal spaced transverse portions of a web may be treated with this liquid, the web dried and cut into sheets which can then be printed, and the stiff margins may then be cut off to give a limp sheet. A sheet may be impregnated with a water-soluble solution containing starch or dextrine which could be removed by washing after printing. Where the sheet is to be used as a map, a solution of gelatine or glue, together with zinc white or titanium, may be used, and the insolubilizing agent may be chrome alum and citric acid ; or the sheet may be treated with a solution of casein in water to which china clay is added and formaldehyde is applied as the insolubilizing agent. Specification 431,218 is referred to.
Patent GB-597555-A (GB)
Title: Wedge belt
IPC: F16G5/06
Filed: 1945-08-22
Abstract: 597,555. Belt gearing. WINGFOOT CORPORATION. Aug. 22,1945, No. 21514. Convention date, April 19. [Class 80(i)] A V-belt of triangular cross-section comprises a rubber core 9, having inextensible cords 8 embedded adjacent the base and surrounded by layers of fabric 6, the vertical thickness of the belt being greater than its width. The sharp inner edge of the belt may be removed to prevent bottoming in the pulley groove, or a groove 10 may be formed in the pulley 1 as shown. The belt is moulded on a circular drum with the driving faces 11 outwards, and is turned inside out for working use. Notches 13 deeper than half the belt thickness may be cut from the inner edge of the belt to increase flexibility.
Patent GB-358941-A (GB)
Title: Improvements in sound insulated buildings
IPC: E04B1/82
Filed: 1930-07-11
Abstract: 358,941. Walls; ceilings. THORNTON, A. A., 7, Essex Street, Strand, London. -(United States Gypsum Co. ; 300, West Adams Street, Chicago, U.S.A.) July 11, 1930, No. 21056. [Class 20 (iv).] Sound-insulating walls and ceilings are formed with the facing panels 29 secured to and spaced from the foundation surface by spring clips 15, 44, which yield under sound impact; the interior may be filled with a light flocculent material, such as ground gypsum and fibre 26. For the walls, the plaster-covered wallboards 29 are secured to channel bars 31 to which the clips 15 are wired. For ceilings, the springs 44 bear against a channel bar 37 to which the furring strips 35 are wired.
Patent GB-455723-A (GB)
Title: Improvements in or relating to automatic regulators
IPC: G05B11/01
Filed: 1935-07-30
Abstract: 455,723. Automatic control systems. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. July 30, 1935, No. 21635. Convention date, Feb. 5, 1935. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 5, 1936.] [Class 38 (iv)] [See also Group XXXVIII] Variables in general.-A variable quantity is regulated in dependence upon one or more variable quantities by a light beam the path of which is influenced by the several measuring instruments the beam acting intermittently upon photo-electric cells adapted to control the follower variable quantity. The measuring instruments of the leading and follow. ing variable quantities, for instance electric generators, adjust mirrors 34, 32, and the beam from the source 35 is successively reflected from these mirrors and from a fixed spherical mirror 36, towards the light-sensitive cells 37, 38. When the mirrors 34, 32 are deflected through the same angle, the beam passes between the cells 37, 38, but any difference in deflection projects it against one or the other of the cells. The beam passes through an opening 40 in a rotating disc 39 so that the period of exposure of the cells increase with increase of deflection of the beam. One of the leading elements may be fixed or adjustable from a distance. The source of light may be adjusted about the axis of the mirrors by one of the variable elements.
Patent GB-840606-A (GB)
Title: Improvements in air convection heaters
IPC: H05B3/00
Filed: 1958-07-07
Abstract: 840,606. Electric convection heaters. TATTERSHALL, A. July 7, 1958, No. 21641/58. Class 39(3). An air convection heater comprises a container divided by a conical apertured separator into a warm zone and a cool zone. As shown, a cool zone C which air enters through apertures E and a warm zone B from which air leaves through apertures D are divided by a conical separator A having one or more apertures associated with an electric lamp F surrounded by a heat exchanger G, e.g. of steel wool, held in position by a surround H of wire mesh or the like, through which air must pass in its passage from zone C to zone B. The top of the container may be safeguarded against overheating by a spaced reflector plate I and interposed heat insulation J. A thermostat K may also be provided. A heat source other than an electric lamp may be used.
Patent GB-639224-A (GB)
Title: Improvements in or relating to force measuring apparatus
IPC: G01L1/08
Filed: 1947-08-08
Abstract: 639,224. Dynamometers. ELECTROFLO METERS CO., Ltd. Aug. 8, 1947, No. 21830. Convention date, June 11, 1945. [Class 106 (ii)] In a dynamometer the force to be measured urges a pivoted member 13 in one direction only, no matter whether the force is a push or a pull, and this movement is resisted by two or more fluid pressure units 23, 24 connected to the member. The units 23, 24 are supplied with fluid through pipes 26, 27 respectively, connected to a distributer valve 28 which is adapted to connect either or both of the pipes to a supply pipe 31. The pressure in the units is regulated by a control pilot valve 32 to which the main supply pipe 33 and the pipe 31 are connected; the valve also has an exhaust pipe 34, and is connected to a pressure gauge 35. The control valve is actuated through a linkage from the member 13, 'whereby clockwise movement of the latter will actuate the valve to supply the pipe 31 and pressure units 23, 24, and counterclockwise movement of the member 13 by the pressure units will actuate the valve to allow fluid to exhaust to atmosphere through the pipe 34. With the member 13 in a balanced central position between stops 36, the gauge 35 will indicate the pressure in the units 23, 24, which will be a measure of the load on the dynamometer. As shown, a dynamometer 10 has a torque arm 11 connected by a link 38 to a lever 17 pivoted at 18. The member 13 is a T-beam with unequal arms 14, 15 and pivoted at 16. A roller 19 on the arm 15 engages the underside of the lever 17, and a roller 21 on the arm 14 engages the upper side of a cross arm 22 on the lever. By this arrangement, the member 13 is always urged clockwise whether a pull or a push is imparted to the lever 17 by the link 38.
Patent GB-1343238-A (GB)
Title: Unique word detection in digital burst communications systems
IPC: H04B7/212
Filed: 1972-05-10
Abstract: 1343238 Satellite communication systems POST OFFICE 10 May 1972 [17 May 1971] 21923/72 Heading H4L [Also in Division G4] A particular word is detected by comparing an input word with a reference word, providing a weighted signal (not all the same) for each input bit which agrees with the corresponding reference bit, summing the weighted signals, and thresholding the sum to produce a detection signal. A signal received from a satellite includes three portions viz. synchronization, a word, and information. The word is fed to a plurality of detectors, each as above. In a detector, the word is converted to parallel form in a shift register, the true or inverse output of each register stage (according to the value of the respective reference bit) being passed to a respective weighted resistor, the other ends of the resistors being commoned to the thresholder. Another embodiment uses a chain of delays, and multipliers.
Patent GB-767616-A (GB)
Title: Improvements in and relating to liquid spray apparatus
Inventor: WHITE SIDNEY HAROLD
IPC: B05B7/16
Filed: 1954-07-28
Abstract: 767,616. Ground markers. AEROSTYLE, Ltd. Sept. 30, 1955 [July 28, 1954], No. 22054/54. Class 132(2). [Also in Group XXIX] Apparatus in which a wheeled vehicle carries a spring gun 6 fed with spray liquid from a container 2 and atomizing air from a compressor 3 via a heat exchanger 16 (see Group XXIX) is intended for the marking of lines on tennis courts &c., and the spray from the gun is directed downwardly between two spaced stencil wheels 14.
Patent GB-661112-A (GB)
Title: Improved union for water or gas pipes
Inventor: SINGH SANTA
IPC: F16L37/113
Filed: 1948-08-21
Abstract: 661,112. Pipe couplings. TATA IRON & STEEL CO., Ltd. Aug. 21, 1948. No. 22079/48. Addition to 645,764. Class 99 (i). In the pipe coupling claimed in Specification 645,764, the number of union rings is reduced from two to one so that the coupling comprises two flanged union fittings 1, 12 threaded or the ends of the pipes A, B respectively and a union ring C adapted to bear against the flange of one fitting and interlock with the second fitting, one of the fittings having a projecting ring in an end face thereon to engage in an annular recess in the opposing end face of the other fitting, and interlocking of the ring and fitting being effected by relative rotation, whereupon wedge-shaped segmental projections 13 on the fittings engage like recesses approached by segmental notches on the union ring.
Patent GB-1524134-A (GB)
Title: Photographic camera exposure indicating device
IPC: G03B17/20
Filed: 1976-05-27
Abstract: 1524134 Camera exposure indicator PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 27 May 1976 [12 June 1975] 22161/76 Heading G2A  A camera exposure indicator comprises two groups of light emitting elements 1, 2, 3 and 4, 5, 6; different pairs of which are energized in dependance upon the degree of under or over exposure set. As shown in Fig. 1, elements I and 3 light up for large over-exposure, elements 2 and 3 for smaller overexposure, elements 3 and 4 for the correct setting, elements 4 and 5 for small under-exposure and elements 4 and 6 for large under-exposure. Fig. 2 (not shown) shows an alternative lighting sequence for elements 1 to 6.
Patent GB-1189887-A (GB)
Title: Centrifugal Countercurrent Exchange Devices Comprising Adjustable Dual Phase Liquid Feed Means
Inventor: DOYLE COLLIN MORLEY
IPC: B04B5/06
Filed: 1967-05-12
Abstract: 1,189,887. Centrifugal liquid/liquid contactor. C M. DOYLE. 12 May, 1967 [25 May, 1966], No. 22245/67. Addition to 1,058,767. Heading B1F. The liquid feed means 33 of the centrifugal liquid/liquid contactor of Specification 1,058,767 is adapted for feeding a mixture of two immiscible liquids of different density from passage 20 by having two perforated selector sleeves, 56 for feeding the heavier liquid and 58 for feeding the lighter liquid, Fig. 3, which shows the feed means in diametrically opposed relationship to that shown in Fig. 4 of Specification 1,058,767 and a conduit 72 which allows the lighter liquid after separation by centrifugal force from the mixture to flow to apertures 62 out of contact with the mixture. The position of sleeves 56 and 58 and conduit 72 are adjustable within the feed means.
Patent GB-914625-A (GB)
Title: Condensation products having tanning action and a process for their production
Inventor: GUTHKE FRIEDRICH-WILHELM
IPC: C14C3/20
Filed: 1961-06-21
Abstract: Sulphonated condensation products are obtained by condensing an oily condensation product obtained in an alkaline medium from one or more monohydric or polyhydric phenols and formaldehyde with a hydroxynaphthalene sulphonic acid, after-condensing the resultant resin with sulphite waste liquor at an elevated temperature and adjusting the pH of the mixture to 2,8 to 3,6 before or after the after-condensation.  The reaction mixture may be concentrated and dried.  The oily condensation products of phenols may be obtained from monohydric phenols such as phenol, cresol or xylenol, or from polyhydric phenols such as, pyrocatechol or resorcinol.  The products are tannins.  Examples are given.
Patent GB-644547-A (GB)
Title: Improvements in operating circuits for electric discharge lamps
IPC: H05B41/391
Filed: 1948-08-25
Abstract: 644,547. Control systems for space discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and CLARKE, M. G. Aug. 25,1948, No. 22419. [Class 38 (iv)] [Also in Group XL (a)] Dimming of an electric discharge lamp 1 is effected by supplying the lamp through a variable ratio transformer 10 having a fixed number of secondary turns adapted to be connected directly or indirectly to the lamp electrodes and a variable number of primary turns connected to the supply 2 through the usual choke 9 whereby as the effective number of primary turns is reduced a progressively higher voltage and lower current is supplied to the lamp. Preheating of the lamp electrodes 3, 4 may be effected by providing additional windings on the transformer so that upon reduction of the discharge current the heating current is increased. Should it be inconvenient to provide the heating windings on the transformer, e.g. in the case of an auto-transformer, in additional transformer 5 may be interposed between transformer 10 and the lamp 1 and which may be provided with the heating windings 6, 7. To improve starting capacity electrodes 8 may be arranged external to the lamp and earthed. A pluraluty of lamps may be operated in series from a single variable ratio transformer by, in the case of lamps having preheating electrodes, supplying each lamp from its own transformer 5 the primaries of which are connected in series with the secondary winding of the variable ratio transformer 10 (Fig. 3, not shown). In the case of high voltage lamps with non-preheated electrodes the lamps are in series with the secondary of a transformer having its mid-point earthed and its separate primary winding supplied from the variable ratio transformer.
Patent GB-1467326-A (GB)
Title: Wear-resistant inserts for ground-engaging tools
IPC: E02F9/28
Filed: 1974-05-21
Abstract: 1467326 Wear-resistant inserts for groundworking tools CATERPILLAR TRACTOR CO 21 May 1974 [21 May 1973] 22586/74 Heading A1B [Also in Division El] Improved control of wear of the bottom surface 13 of the ground-engaging digging edge of a ground-working tool 10, e.g. a grader blade, having a main portion 12 fabricated from a tough, ductile alloy material is obtained by so fixing a hard, wear-resistant insert 11 to the rear surface of said portion that the bottom surface of the edge is formed by both the body and the insert. In one preferred embodiment the insert, which may be brased to the main portion, comprises the entire rear surface of the tool. In another embodiment the insert is sandwiched between the main portion and a rear portion of a similar alloy to the main portion, the insert and portions being brased or welded into a single unit.