baber/WOPTO huggingface dataset:
Patent GB-1009692-A (GB)
Title: A demodulator for a frequency modulated signal
IPC: H03D3/08
Filed: 1962-06-18
Abstract: 1,009,692. Frequency discriminators; tunnel diode pulse circuits. GENERAL ELECTRIC CO. June 18, 1962 [July 13, 1961], No. 23440/62. Headings H3A and H3T. An FM wave is applied to a tunnel diode shunted by an inductor 3 and resistor 2 in series, so that when the sloping flank voltage of the FM wave input across the diode exceeds the current peak voltage the operating point of the diode changes to the higher voltage part of the characteristic and returns to the lower voltage part only after the wave voltage decreases to the current minimum point, after a time determined by the time constant of the inductor and resistor. Positive pulses of variable duration are thus produced across the diode of average value varying the voltage across resistor 2 to produce a demodulated output. Inductor 3 and resistor 2 have a time constant allowing a new cycle to begin after each positive half-cycle or an integral number of half-cycles of the FM input. A bias circuit 8, 9, 10 may be used for low voltage inputs to assist the current peak voltage being exceeded by the input. In a modification, the pulsed output across the diode is differentiated by a C-R circuit, rectified and smoothed to form the demodulated output. (In this case the pulse duty cycle may be constant (50%) and the input FM switches the diode between each of its modes alternately, due to in this case a larger L-R time constant of inductor 3 and resistor 2 being used.) A diode may be inserted into each discriminator input lead to ensure it being responsive to only one polarity of the half-cycle inputs.
Patent GB-476826-A (GB)
Title: Improvements in wrist watches
IPC: G04B33/08
Filed: 1936-08-26
Abstract: 476,826. Watches. GRUEN, F. G. Aug. 26, 1936, No. 23460. Convention date, Feb. 11. [Class 139] A wrist watch has a curved case comprising telescopic curved front and back members 4, 7, and a movement frame (plate 14 and bridges 15) which has curved faces to engage the front and back members 4, 7. The integral rear member 7 is formed inwardly at 11 to give an aperture 12 which receives the movement frame and the latter has a curved front face 17 between which and the bezel 4 is held the dial 18. The wheels, other than the motion work, are in closely spaced parallel planes.
Patent GB-281606-A (GB)
Title: Improvements in and relating to pneumatic tools
IPC: B25D17/08
Filed: 1927-09-07
Abstract: 281,606. Dannert, H. Nov. 30, 1926, [Convention date]. Percussive tools.-The outer end of the helical tool-retaining spring of a pneumatic riveting hammer or like tool, is reversed and continued for several turns inside the main helix. In the Specification as open to inspection under Sect. 91 (3) (a) the main helix is tapered as shown; this figure does not appear in the Specification as accepted, in which the main helix is shown parallel. Specification 12973/96, [Class 108, Road vehicles], is referred to.
Patent GB-264556-A (GB)
Title: Improvements in or relating to automatic switches for use in telephone or like systems
IPC: H01H63/02
Filed: 1925-09-21
Abstract: 264,556. Automatic Telephone Manufacturing Co.., Ltd., (Automatic Electric Co.). Sept. 21, 1925. Automatic exchange selectors. - In an up-and-around type switch, stationary contact springs 15, 16 are operated by a cam-sleeve 13, vertically movable with the switch-shaft 4, at certain levels in order to accomplish circuit changes in the switch, for example when used as a " selector-connector." The usual return-spring housing 5 on the shaft 4 engages flanges on the sleeve 13 to actuate it. The cam-sleeve may be variously shaped, and may operate to bring the contact springs to a number of different positions for varying periods.
Patent GB-374698-A (GB)
Title: Improvements relating to apparatus for sorting or separating coal or other minerals
IPC: B07B13/10
Filed: 1931-08-24
Abstract: 374,698. Separating solid materials. BARKER, W., Shooters Hill, near Longton, Stoke-on-Trent. Aug. 24, 1931, No. 23720. [Class 117.] In apparatus for separating coal or other minerals of the type comprising a fixed or vibrating inclined plane a followed by a gap g and plane h, an air chamber b is provided beneath the plane a and delivers air under pressure through a nozzle e disposed at the upper end of the plane. The air is supplied at c and baffles d with apertures of successively decreasing size are provided to ensure the even flow of the air to the nozzle.
Patent GB-1433273-A (GB)
Title: High-frequency cable
IPC: H01B11/20
Filed: 1974-05-29
Abstract: 1433273 Coaxial cables KABELUND METALLWERKE GUTEHOFFNUNGSHUTTE AG 29 May 1974 [12 Oct 1973] 23808/74 Heading H1A A communications cable has a number of coaxial pairs stranded in layers around a core, each coaxial pair having an outer conductor made of a longitudinal metal strip bent round the inner conductor so that the edges abut and the edges welded together to form a closed tube with a longitudinal seam. The cable has a common sheath of a synthetic resin, the coaxial pairs are reverse twisted during stranding and their insulation may be of discs separated along the inner conductor. A sealant such as petroleum jelly may be used to fill the space between inner and outer conductors. The coaxial pairs have dimensions substantially as follows 2À6 mm. for the inner conductor diameter, 9À5 mm. for the inside diameter of the outer conductor and a 0À25 mm. thick outer wall which adapts them for use in the 40 to 1000 MHz frequency range.
Patent GB-156867-A (GB)
Title: An improved tool for use in marking and cutting joints of mouldings and the like
IPC: B27F5/12
Filed: 1919-10-01
Abstract: 156,867. Latimer, C. H., and Tedstone, H. G. Oct. 1, 1919. Mitering.-A tool for use in cutting the end of a piece of moulding to the shape of the surface of a second piece of moulding to which it is to be joined in the construction of door or window frames &c. comprises a member a formed with flanges d, e to engage adjacent sides of the moulding and shaped between the flanges to fit the curve c of the moulding, one or both of the ends h, i of the member being shaped to the contour of the second piece of moulding. The tool is clamped to the work by a screw g, and the ends h, i form guides for a chisel.
Patent GB-1462912-A (GB)
Title: Liquid foam-regulated washing compositions
IPC: C11D1/72
Filed: 1974-05-31
Abstract: 1462912 Liquid foam-regulated washing compositions HENKEL & CIE GmbH 31 May 1974 [1 June 1973] 24117/74 Heading C5D A liquid washing composition comprises: (a) 15 to 60% by weight, of a combination of aliphatic polyethyleneglycols derived by ethoxylation of C 12 -C 20  compounds selected from alcohols, alkanediols, amines, caboxylic acids, carbonamides or sulphonamides, the combination comprising lower ethoxylated compounds with degrees of ethoxylation of 2 to 6 and higher ethoxylated compounds with degrees of ethoxylation of 8 to 20, and the mixing ratio of the lower ethoxylated compounds to the higher ethoxylated compounds being from 1:5 to 2:1, (b) 0À2 to 8% by weight of a foam inhibitor, consisting of 0À2 to 0À8% by weight of a non-surface-active foam-inhibitor and/or 1À5 to 8À0% by wt. of a foam-inhibiting soap, (c) 0À3 to 15% by weight of organic salts forming complexes with calcium ions selected from water-soluble salts of polycarboxylic acids, aminopolycarboxylic acids, alkanepolyphosphonic acids, phosphonoalkanepolycarboxylic acids and amino- and hydroxy-substituted alkanepolyphosphonic acids, (d) 10 to 40% by weight of a water-soluble or water-dispersable alcohol, etheralcohol or ester, the ester having not more than 4 carbon atoms in the molecule and (e) water, the components being chosen so that the preparation has a pH value between 8À5 and 10 in a 1% aqueous solution. Suitable non-surface-active foam inhibitors (b) are N-alkylaminotriazines, propoxylated and/or butoxylated aminotriazines, aliphatic C 18- C 40  ketones, paraffins or halogenated paraffins with melting points below 100‹ C and silicones, while suitable foam-inhibiting soaps (b) are alkali metal salts of C 12 -C 22  fatty acids. Ingredient (d) may be ethanol, isopropanol, butanol, amyl alcohol, ethylene glycol, diethylene glycol, triethylene glycol, methoxyethanol, or ethyl acetate. The composition may also contain optical brighteners, greyness inhibitors, washing alkalis (i.e. inorganic, alkaline-reacting, water-soluble alkali metal carbonates, bicarbonates, borates and silicates, preferably potassium salts), antimicrobial compounds, hydrotropes, dyestuffs and perfumes.
Patent GB-241181-A (GB)
Title: Improvements relating to means for moving railway vehicles
IPC: B61J3/00
Filed: 1925-09-28
Abstract: 241,181. Bartels, H. Oct. 7, 1924, [Convention date]. Hand driving-mechanism.-A device for moving or propelling railway vehicles either by hand or by power comprises a detachable frame carrying friction rollers which can engage the flange on the axle of one of the wheels. A frame l clamped to the axle-box carries an internal-combustion engine, electric motor, or other prime mover d which drives a wedge-shaped friction roller c adapted to engage the wheel flange. The motor and a platform i are pivoted on the. frame l at k, so that when a person stands on the platform the roller is pressed against the flange and drives the wheel. The device may be fitted to any vehicle or truck which it is desired to move, or it may be permanently attached to one which may then be used as a locomotive. Hand gear may be used for driving the roller c instead of or in addition to the motor.
Patent GB-1318504-A (GB)
Title: One-portion pack for a beverage such as coffee tea chocolate or  the like
IPC: A23G3/20
Filed: 1971-04-19
Abstract: 1318504 One-portion packages AUGUST STORCK GmbH 19 April 1971 [16 March 1970] 24170/71 Heading A2B [Also in Divisions B5 and B8] A one portion pack comprises a container produced from a hard boiled sugar syrup by centrifugal casting, which container is closed by a lid formed from a hard boiled sugar after the contents, such as coffee, tea, cocoa, or extracts or concentrates thereof, have been inserted therein. In one form, Fig. 11, a quantity of hard boiled sugar is inserted in a mould 4 which is then spun to form the shell 9, the filling 11 is admitted and then a layer of hard boiled sugar 2 is deposited on the top of the contents of the mould to form the lid, after which the finished product is ejected. In another form, Fig. 12, two shells 13, 13' are formed by spinning in two moulds 14, 14', the lower shell is filled and thereafter the upper shell is superimposed by action of plunger 7', the finished product being finally ejected.
Patent GB-972111-A (GB)
Title: Improvements in and relating to electrical filters
IPC: H03G5/02
Filed: 1963-06-18
Abstract: 972,111. Impedance networks. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 18, 1963 [June 21, 1962], No. 24213/63. Heading H3U. An electrical filter with adjustable frequency, e.g. for a tone-control circuit, comprises a shunt capacitor C 1 , a series-connected potentiometer R 1  and shunt capacitor C 2  of equal value to C 1 , a second resistor R 2  shunt-connected after the second capacitor C 2 , and a third resistor R 3  shunt connected to the adjustable tapping of the potentiometer R 1 . Adjustment of the potentiometer tapping 5 alters the filter frequency, but the filter impedance remains constant for such adjustment.
Patent GB-316452-A (GB)
Title: Anti-drip valve nozzles for liquids
IPC: F16K23/00
Filed: 1928-08-23
Abstract: 316,452. Macleod, A. W. Aug. 23, 1928. C l o s u r e members; simple lift. - In a combined nozzle and discharge valve, particularly for use in dispensing oils and similar viscous s liquids, an axially moving tubular or solid plug 7 has its seating-surface tapered to form a knife edge, the coacting surface of the valve body being similarly formed and arranged so that the exterior edges of the coacting surface are coincident, or nearly so, thus reducing the "drip surfaces " to a minimum. When used as an anti-drip discharge nozzle, the plug 7 is automatically lifted by the fluid-pressure acting on a piston, formed by a cupped washer 13 and retaining-plate 16, when the main cock is offered, and is closed by a spring 20 when the pressure is shut off. When used as a manually-operated discharge valve, the plug may extend upwards and pass through a stuffing- box in the valve body to allow it to be lifted by a cam-action lever or other means. The coacting end of the plug may be made detachable and adapted to be applied to the main portion of the plug with a washer interposed between the body of the plug and the detachable end.
Patent GB-875854-A (GB)
Title: Improvements relating to cramping apparatus
Inventor: LAMB CHARLES DUDLEY PARKINSON
IPC: B27D3/00
Filed: 1959-07-15
Abstract: 875,854. Cramps. RAINHAM TIMBER ENGINEERING CO. Ltd. June 14, 1960 [July 15, 1959], No. 24289/59. Class 61. Apparatus for cramping superimposed layers of material comprises a rigid, elongated bed plate 1 having side members 2; 3 secured thereto as by bolts 4 and defining with the bed-plate a channel of desired width and length for receiving the material to be cramped, a cramping head 5 adjustably secured between the side members so that the spacing between the bed plate and the cramping head may be varied and one or more inflatable members 9 arranged between the material and the cramping head. The cramping head consists of a number of short lengths 5 of channel disposed end to end between the side plates, each length being supported in position by a pin 6 passed through holes in its flanges and in the side plates 2, 3 which are provided with a series of holes 7. One or more lengths of hose pipe 9 or other inflatable member are arranged on top of the pack of timber boards 8 and beneath the clamping head 5 which is so adjusted that the hose pipe is somewhat compressed. Pressure fluid, air or water is then applied to the interior of the pipe. Additional inflatable members 10 are arranged between the material 8 and the bed plate for lifting the material clear of the bed plate after the cramping operation has been completed and the cramping head removed.
Patent GB-1518981-A (GB)
Title: Attachments for a building structure
IPC: H01Q1/12
Filed: 1975-06-05
Abstract: 1518981 Clamps D C PARSONS W A PARSONS N B PIGOTT and A E FOSTER 5 June 1975 24315/75 Addition to 1479345 Heading E2B A clamp for attaching to faces of brickwork which meet in a corner comprises an element 11 shaped to fit the corner, two arms 10 slidably mounted on the element and bearing engagement portions 14 which can be hammered in between the bricks and an adjustment screw engageable with a collar 18 on element 11 for moving the engagement portions 14 together. In the embodiment of Fig 3 (not shown) the adjustment screw is replaced by one acting directly between the arms. In the clamp shown in Fig. 4 the element comprises head 31 and screw 30, adjustment of the latter causing the sliding of arms 25.
Patent GB-171206-A (GB)
Title: Improvements in or in connection with machines for moulding meal and other plastic or semi-plastic materials and the like
IPC: B30B9/20
Filed: 1920-08-21
Abstract: 171,206. Sizer, A. W. Aug. 21, 1920. Fatty oils, extracting by pressure. In a moulding machine in which two rotating drums have moulds formed on their peripheries and rotate in contact, fine passages are formed connecting the moulds with the interior to carry away expressed oil, moisture, &c. One or both drums may have a number of annular discs B, clamped on the perforated hollow cylinder A by rings C, C'. The discs are suitably cut to form moulds as described in Specification 120,747 and have fine grooves for the oil &c. to pass through into the cylinder and through the passages into and through the hollow shaft D. The drums may be composed of a number of plates having radial cut-away parts and secured in staggered relation by bolts between end plates on a shaft. The oil &c. is passed away through a hole in the boss or central portion of some plates and through the hollow shaft. The drum may also be built up of a number of longitudinal plates arranged radially around a central body or on the shaft. The material is fed to the drums under high pressure by a worm in a casing.
Patent GB-256081-A (GB)
Title: Improvements in stock-boxes
IPC: A47F3/14
Filed: 1925-09-30
Abstract: 256,081. Gundell, T. M. Sept. 30, 1925. Contents, viewing; bands, strengthening; corner strengthening pieces.-A stock box for storing goods in shops &c. is made of fibreboard and has at least one wall formed as a frame surrounding a transparent pane f of glass &c. with the upper edge of the frame reinforced by a sheet metal strip l. The frame preferably consists of an inner member k and an outer member g between which the pane f is fixed and the upper edges of the members are bound together by the reinforcing metal strip l which is of U-section and may be also applied to the other upper edges of the box. The corners may be strengthened by corner clips n of U-section which straddle the reinforcing strips l and are retained in position by rivets o. The lower part of the frame may be reinforced by a metal strip secured in position by the rivets g' connecting the frame members, and two of the rivets may also secure a handle m to the box. The bottom a and back b of the box are in one piece and the ends c and the frame are secured thereto by flanges d, e, j while flanges h on the frame are secured to the ends.
Patent GB-1041082-A (GB)
Title: New platinum-containing complexes useful at catalysts in the production of organosilicon compounds
IPC: C07F7/14
Filed: 1963-06-19
Abstract: The invention comprises compounds prepared by heating chloroplatinic acid with at least two moles per gram atom of platinum of (a) an alcohol ROH, or (b) an ether ROR, or (c) an aldehyde RCHO, or (d) any mixture of these, at 60-90 DEG  C. under reduced pressure until the product contains 2-3.5 atoms of chlorine per atom of platinum.  R represents an alkyl group containing at least 4 carbon atoms, an aralkyl group, or an alkyl group substituted by a group R1O, where R1 is free of aliphatic unsaturation and may be a hydrocarbon group, or contain C, H and O atoms, the oxygen being present in hydroxy or ether groups only.  The product appears to be a complex containing PtCl2 and aldehyde and ether molecules.  In examples products are derived from anydrous or hexa-hydrated chloroplatinic acid and octyl, myristyl, n-pentyl, iso-amyl, and butyl alcohols, and from di-octyl ether, octyl aldehyde, and a mixture of these, and from a polyethylene glycol monomethyl ether, using temperatures of 65-90 DEG C. and pressures of 15-30 mm.  The compounds are used to catalyze addition of of <FORM:1041082/C2/1> groups across the multiple bonds of aliphatic unsaturated compounds (see Division C3).ALSO:Silicon compounds containing at least one Si-H group per molecule, and not more than two hydrogen atoms attached to any one silicon atom, are reacted with compounds, including silicon compounds, containing aliphatic unsaturation, in the presence of a catalyst which is obtained by heating chloroplatinic acid with (a) an alcohol, ROH, or (b) an ether, ROR, or (c) an aldehyde, RCHO, or (d) any mixture of these (see Division C2).  The group R is alkyl of at least 4 C atoms, or aralkyl, or is alkyl substituted by a group R1O-, where R1 is free of aliphatic unsaturation, and contains only carbon and hydrogen, or carbon, hydrogen, and hydroxyl or ether groups.  The catalyst appears to be a complex containing PtCl2 and aldehyde and ether molecules, and should contain 2-3.5 atoms of chlorine per atom of platinum.  In examples, catalysts are prepared from anhydrous or hexahydrated chloroplatinic acid and octyl, myristyl, n-pentyl, isoamyl and butyl alcohols, polyethylene glycol monomethyl ether, di-octyl ether, octyl aldehyde, and a mixture of these last two.  The catalyst derived from octyl alcohol is dissolved in toluene and used in quantities providing 1 mole of platinum per 103-106 moles of ethylenic unsaturation in the preparation of organosilicon compounds by the following additions: a methyl hydrogen polysiloxane to a methyl vinyl polysiloxane; a methyl phenyl hydrogen polysiloxane to a methyl phenyl vinyl polysiloxane; methyl dichlorosilane to vinyl acetate; methyl dichlorosilane to cyclohexene; methyl dichlorosilane to heptafluoropentene-1; methyl dichlorosilane to methyl methacrylate; phenyl dichlorosilane to methyl methacrylate. The first of these is also catalyzed by each of the other catalysts prepared.
Patent GB-796169-A (GB)
Title: Improvements relating to cooking appliances
IPC: A47J37/06
Filed: 1955-08-25
Abstract: 796,169. Releasable fastenings. GENERAL ELECTRIC CO. Aug. 25, 1955 [Aug. 26. 1954], No. 24478/55. Class 44 [Also in Group-VI] A cooking appliance comprises casing halves 12, 14 each provided with a reversible detachable combination grid 26 one side of which functions as a waffle iron and the other side as a grill, each grid being detachably secured in its half casing by means which includes a mounting spring clip 40 consisting at one end of a seating portion 42 inserted in an opening 64 in its half casing spaced from the edge and bearing resiliently on the edge of the opening nearest the edge of the half casing, a latching portion 44 engaging the grid and an intermediate portion 46 interconnecting the seating portion with the latching portion. The two casing halves are secured to each other by a hinge construction including a closed helical spring 16. Each of the casing halves has a heating element (not shown) -the lower half 14 being provided with supporting legs 20 and the upper half with a manual grip 22. Each half comprises a dished shell 24 the open side of each shell being closed by the reversible grid 26. The grid 26 has one flat face 28 and another face 30 which has a plurality of raised enlargements and depressions to form a waffle grid and is provided with a peripheral flange 36 into which the edge of the shell fits. A channel shaped locater 32 is secured to the flange 36 and when the grid is seated on the shell one leg of the locater enters an opening in the shell. When the grid is reversed the other leg of the locator enters the opening. The clip 40 is positioned diametrically opposite to the locator and is formed from a bent strip of resilient metal. The seating portion 42 comprises a pair of legs 50, 54 the leg 54 being connected to the portion 46 and the leg 50 having an arcuate hook 48. The seating portion 42 is positioned in the opening 64 in the shell with the arcuate hook 48 engaging an edge of the opening and the latching portion 44 can then engage over the flange 36 of the grid to secure it in place. The latching portion is bent at right angles to the connecting portion 46 and terminates in a rolled ear. The legs of the locator and the latching portion of the clip are recessed into the flange of the grid so that the two grids have the whole of their flanges in contact.
Patent GB-1073941-A (GB)
Title: Improvements in or relating to ion guns of the penning type
Inventor: CAS RENATO DEL
IPC: H01J27/04
Filed: 1964-06-12
Abstract: 1,073,941. Ion sources. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 12, 1964 [June 12, 1963], No. 24529/64. Heading H1D. In a Penning type ion gun the longitudinal component of the magnetic field increases in intensity but at a decreasing rate from the reflective electrode 6, which forms one polepiece of the magnetic circuit, to the electron emitting and ion exit electrode 8 which forms the other polepiece. As shown, the ion exit aperture 10 is a slot with the electrode and polepiece 8 having two extensions 44, 44<SP>1</SP>. The anode is in two inclined parts 46, 46<SP>1</SP>, the inner surfaces of which conform with the direction of the magnetic field. The magnetic field also increases in each transverse plane from the central plane of the system to a maximum away from the central plane. The ion exit aperture may be circular or annular instead of in the form of a slot. Two rows of heaters 14, 16, Fig. 1 (not shown) are located in front of the electrode 8.