baber/WOPTO huggingface dataset:
Patent GB-572063-A (GB)
Title: Improvements in or relating to tool holders
IPC: B23B27/16
Filed: 1944-02-21
Abstract: 572,063. Tools and tool-holders. LAZENBY, T., NEELANDS, A. R., and CEMENTATION CO., Ltd. Feb. 21, 1944, No. 3170. [Class 83 (iii)] A tool-holder for a quadrangular cutting bit comprises a mild steel shank A, a holding piece B brazed or otherwise secured to the shank, said holding piece being forked to receive and support one corner of the bit D and a countersunk screw C to hold the bit in position. The bit is of cast hard metal with a raised portion at each corner to form four cutting edges which can be used in turn by unscrewing the bit and turning it through 90 degrees. Specification 160,923, [Class 83 (iii)], is referred to.
Patent GB-515417-A (GB)
Title: Improvements in and relating to curtain hooks
IPC: A47H13/04
Filed: 1938-02-02
Abstract: 515,417. Cellulose derivative and synthetic resin articles. BYSON APPLIANCE CO., Ltd., and HARRISON, E. Feb. 2, 1938, No. 3206. [Classes 2(ii) and 2(iii)] [Also in Group XIV] Curtain suspension hooks are constructed by moulding from cellulose acetate or synthetic resin and are of the form such that the material has in its cross-section a greater dimension across the plane of the hook than in that plane, the section of the material being of elliptical, rectangular, cruciform, or other suitable form. Figs. 1 and 2 show such a hook formed of three limbs a, b, c, an enlargement d being provided to form an abutment for the ring e and also to serve as a runner for sliding on a valance rail' as shown in dotted lines in Fig. 2. The end a<1> is tapered to facilitate insertion into the hook tube of the curtain pleating tape. Fig. 5 shows another form. Specification 510,435 is referred to.
Patent GB-1120724-A (GB)
Title: Improvements applied to pistions of fluid pumps
IPC: F16J1/00
Filed: 1966-01-25
Abstract: 1,120,724. Pistons. A. AUSSOURD. 25 Jan., 1966 [25 Jan., 1965], No. 3370/66. Heading F2T. The cup member 1 of a piston for a tyre inflator is mounted on a hollow rod 3 by a stud 9 provided with a groove for a spring clip 13. The stud is secured in the rod by a spot weld 14 and is a force-fit into the cup which is made of pressure moulded natural or synthetic rubber.
Patent GB-1208407-A (GB)
Title: Improvements in or relating to methods of bonding non-ferrous metal and product produced thereby
IPC: B23K20/227
Filed: 1969-01-21
Abstract: 1,208,407. Rolling; making composite strip. ALLEGHENY LUDLUM STEEL CORP. 21 Jan., 1969 [19 Feb., 1968], No. 3422/69. Headings B3A and B3M. A wire of aluminium, zinc, cadmium or one of their alloys is bonded to a stainless steel substrate by rolling, the stainless steel being substantially unreduced by the rolling. The wire is initially heated to a temperature between 140‹ and 1200‹ F. and the strip to between 375‹ and 500‹ F. The stainless steel strip can be in the form of a car trim strip with the wire acting as a sacrificial component for preventing corrosion between the strip and car body.
Patent GB-893781-A (GB)
Title: Improvements in or relating to stocking forms
IPC: D06B5/24
Filed: 1960-02-02
Abstract: <PICT:0893781/IV (c)/1> <PICT:0893781/IV (c)/2> A stocking form for the treatment, such as dyeing, of stockings drawn thereon includes a seam groove 1 of such dimensions that the stocking seam 4 can lie therein without contacting the walls or base of the groove.  In the embodiment shown groove 1 runs along the whole length of the form. In the case of a very thin form the edge portions can be bent aside to accommodate the seams.
Patent GB-986731-A (GB)
Title: Foundry moulding process
Inventor: STANDEN COLIN JOHN SMEED
IPC: B22C1/20
Filed: 1961-01-31
Abstract: 986,731. Mould and core materials. CATALIN Ltd. Jan. 30, 1962 [Jan. 31, 1961], No. 3596/61. Heading B3F. Foundry moulds and cores are made from a mixture of sand, a drying oil and at least one organic acid phosphate having the general formula in which R is an alkyl, cycloalkyl, aryl or aralkyl group and R<SP>1</SP> is a hydrogen atom or an alkyl, cycloalkyl, aryl or aralkyl group. The oils may be linseed, perilla, soya, oiticica, sunflower seed, dehydrated castor, tung &c. and may be modified by the incorporation of resins such as the drying oil-modified alkyd resins such as glyceryl and pentaerythrityl phthalate and glyceryl and pentaeythrityl phthalate-maleate resins. A vanadium accelerator such as vanadium pentoxide and the alkali metal and ammonium vanadates or vanadium drier such as vanadium naphthenate is preferably added. Many examples are given. Specifications 362,090 and 653,530 are referred to.
Patent GB-894093-A (GB)
Title: Ventilator for vehicles
Inventor: TAYLOR FREDERICK WILLIAM
IPC: B60H1/24
Filed: 1960-02-02
Abstract: 894,093. Vehicle ventilators. WEATHERSHIELDS Ltd. Feb. 1, 1961 [Feb. 2, 1960], No. 3600/60. Class 137. A ventilator for vehicles comprises an outer cover 11, a base member 10 having longitudinally spaced circular openings 12 and 13, slots 16 and 17 in the front and rear respectively of the cover, and a duct 18 which connects the forward opening 13 with the rear slot 17, the ventilator being adapted to be mounted on a vehicle roof or wall which may form the base member 10. The upper wall of the duct 18 is formed by the cover 11 and the lower wall by a sheet metal pressing 19 which has, at its front end, a flat portion pierced to fit over an upstanding flange 14 around the opening 13. A flange 22 which co-operates with the top of the cover 11 and is spaced inwardly from the sides thereof, is provided around the edge of the pressing 19, the rear edge of which is secured to the rear end of the cover below the slots 17. The arrangement is such that air from the slots 16 around the duct 18 to the rear opening 12 while air from the vehicle interior is extracted through the duct. The openings 12 and 13 may be covered by grids, diffusers or controlling shutters and a baffle 24 and water outlets 23 are provided. In a modification the duct is a completely separate unit having its rear part flattened and terminated in an elongated nozzle which is secured over the slots 17.
Patent GB-510547-A (GB)
Title: Improvements relating to wheels for vehicles
IPC: B60B9/20
Filed: 1938-02-07
Abstract: 510,547. Vehicle wheels. VILVANATHAN, C. S. Feb. 7, 1938, No. 3739. [Class 144(1)] The rim 7 is supported from the hub 2 by a pneumatic cushion 5 and closely-coiled springs 9 enclosed by side discs 10 which are normally clear' of, and form lateral guides for, the web 8 of the rim.
Patent GB-655269-A (GB)
Title: Improvements in umbrellas, parasols, sunshades and the like
IPC: A45B19/10
Filed: 1948-02-09
Abstract: 655,269. Umbrellas. FROST, S. M., and KENDALL & SONS, Ltd., Feb. 9, 1948, No. 3795. [Class 134] In an umbrella, parasol or sunshade of the ordinary or collapsable type having a tubular stem 1, a notch 5 (to which the ribs are pivoted) and a plug 6 inserted into the end of the stem and between which and the notch the centre of the cover is secured, the stem, the notch and the plug are secured together by a tapering pin 27 frictionally driven into a tapering hole passing through these parts. The hole may be formed by drilling through the assembled parts in one operation and then bringing the hole to the required taper by means of a tapered reamer. The centre of the cover is provided with a two-part eyelet 13, as described in Specification 608,843, which is held between the notch 5 and a flange 9 on the plug 6, and preferably rests on a fabric or other flexible disc or cap 26. The umbrella is held open by a wire spring 20 bent to form a catch which projects through a slot in the stem 1 and connected at one end to the plug 6 by means of a pin or rivet 23 passing through a loop 21 in the wire and the limbs of the forked inner end 22 of the plug, or in a preferred modified form, Fig. 7, the catch is formed by a spring strip 30. The catch is disengaged by sliding a second tubular stem member into the first section 1. Specifications 608,764 and 655,267 are also referred to.
Patent GB-161378-A (GB)
Title: Improvements in clips for securing roofing slates and the like
IPC: E04D1/34
Filed: 1920-02-07
Abstract: 161,378. Walker, A. C. Feb. 7, 1920. Roofs, slating. - A clip for securing slates, particularly when these have been displaced after laying, consists of a pliable metal strap a screwed to a batten &c. and a metal slider d embracing and sliding on the strap and provided with a bent extension e to engage the slate. The end of the strip is bent under as at g to hold the slider in position.
Patent GB-1176687-A (GB)
Title: Improvements in or relating to Apparatus for use in contact with Corrosive Fluids.
Inventor: CHAPMAN RAYMOND ALBERT
IPC: C04B35/48
Filed: 1967-01-26
Abstract: 1,176,687. Moulding powders. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 25 Jan., 1968 [26 Jan., 1967], No. 4015/67. Heading B5A. [Also in Divisions B1 C1, F2, F4 and H2] A pipe for MHD apparatus is made by mixing ceric oxide and zirconia and milling in water for 36 hours in a one gallon porcelain mill with porcelain balls. The contents of the mill are filtered, dried and passed through a sieve having 10 meshes to the linear inch. The powder passing through the sieve is pressed to form rods half an inch in diameter and 5 inches long, under hydrostatic pressure of 6 tons per square inch and the rods are heated in nitrogen for two hours at 1100‹ C. The partially sintered rods are broken up in a pestle and mortar, and the pieces milled in a ring and disc mill for 1“ minutes, and the ball milled in water for a further 24 hours. The milled power is filtered, dried and passed through a sieve having 60 meshes to the linear inch, and then moulded in the form of a tube. The mould consists of a double cylindrical rubber bag formed by cementing the open end of a cylindrical bag of diameter 1À4 inches into a hole cut in the closed end of a cylindrical bag of diameter 4 inches, and turning the narrower bag inside the wider bag to form an annular space between the two rubber bags. The space is filled with the power to a depth of 6 inches, a mandrill being placed within the inner bag to retain the shape of the mould during filling. The open end of the outer bag is tied and the mould inverted in glycerol, the inner bag being filled with glycerol, and subjected to hydrostatic pressure of 25 tons per square inch. The tubular compact, so formed, is drilled to give a uniform internal diameter and is then heated to effect sintering.
Patent GB-116262-A (GB)
Title: Improvements in or relating to Armatures for Magneto or Dynamo-electric Maschines.
IPC: H02K21/10
Filed: 1918-03-07
Abstract: 116,262. Compagnie Generale de Magnetos. May 5, 1917, [Convention date] Insulation.-The layers of the secondary winding 5 of a magneto armature are separated by U-shaped partitions provided with a flange 6 at each side and covered with insulating varnish. The partitions are in pairs with their branches overlapping to form a bobbin.
Patent GB-1247233-A (GB)
Title: Process for the production of washing, bleaching or cleaning composition
Inventor: PISTOR HORST
IPC: C11D11/02
Filed: 1969-01-24
Abstract: 1,247,233. Detergent containing bleaching agents. DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT. 24 Jan., 1969 [24 Jan., 1968], No. 4067/69. Heading C5D. A washing, bleaching or cleaning composition in powder form, comprising organic surfactants, detergent auxiliaries and an active oxygen compound which is a salt of boric acid, is produced by spray-drying at elevated temperatures a slurry in which the active oxygen compound which is a salt of boric acid is formed in the slurry by addition to the slurry just before it is sprayed of an active oxygen compound which will react with one or more compounds added with it and/or with one or more other compounds already present in the slurry to form the active oxygen compound which is a salt of boric acid. In the case of sodium perborate, sodium metaborate or borax and NaOH may be present in the slurry and H 2 O 2  added just before spraying. Alternatively, the slurry contains (a) borate or (b) alkali i.e. NaOH and the addition just before spraying is (a) H 2 O 2  and NaOH or (b) H 2 O 2  and borate. H 2 O 2 , NaOH and borate may be added together just before spraying. In a further example, perborax is formed from borax and H 2 O 2 .
Patent GB-720702-A (GB)
Title: Piezoelectric crystal resonator support
IPC: H03H9/05
Filed: 1953-02-13
Abstract: 720,702. Piezo-electric crystal mountings. KRISTALL-VERARBEITUNG NECKARBISCHOFSHEIM GES. Feb. 13, 1953 [Feb. 14, 1952], No. 4068/53. Class 40 (8). A crystal plate 4 having electrodes 5 silvered on either side is supported by means of a strip of insulating material 6 having longitudinal slots, preferably elliptical in shape, through which the edges of the crystal protrude. The strip 6 is almost as wide as the base of the housing 1 and may be in the shape of a flattened U (as shown), inverted V-, M-, W- or diamond-shaped. The strip may be supported by the base 1 or clamped to the leads 2, 3. In the latter case the clamps are connected to the electrodes 5 by means of thin wires. The edges of the crystal plate may be chamfered.
Patent GB-265013-A (GB)
Title: Improvements relating to temples for spectacles
IPC: G02C5/14
Filed: 1926-02-12
Abstract: 265,013. Rosser, G. D., and Hadley Co., Ltd. Feb. 12, 1926. Spectacles.-The temple wires for spectacles, having stranded wire wrapped round a central core which is joined to a solid portion in one with the hinge, have the core wire 3 or the whole end of the cable portion 4 of the wire inserted into a closed cavity 2 in the solid end 1. The hole 2 in the solid end may extend entirely through the end. When inserted the two parts are joined by soldering and the solid cylindrical end 5 is worked up by swaging and the joint is hammered down so as to be of nearly uniform cross-section throughout. When the hole is made entirley through the solid end the part not filled by the cable wire is plugged with a solid core. Reference has been directed by the Comptroller to Specification 261,430.
Patent GB-264339-A (GB)
Title: Improvements in edge-trimmers for leather work
IPC: C14B5/00
Filed: 1926-02-12
Abstract: 264,339. Streich, H. Feb. 12, 1926. Cutting-appliances. - A tool for trimming leather has a square sectioned cranked shank 2 with a blade 4 secured by a clamp 9. The end of the shank is recessed to form horns 8, 12 which contact with the leather and the slanting edge 6 of the blade spans an opening 7 for the trimming.
Patent GB-1101721-A (GB)
Title: Improvements in or relating to machine recognition of speech
Inventor: NEWMAN EDWARD ARTHUR
IPC: G06G7/19
Filed: 1964-01-31
Abstract: 1,101,721. Automatic speech recognition. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 1 Feb., 1965 [31 Jan., 1964], No. 4266/64. Heading G4R. Speech recognition apparatus comprises a delay network to which the speech signals are applied, a number of correlators coupled to the delay network for correlating the speech waveform with delayed output signals from successive points on the network, means for decoding the outputs from each of the correlators and a decision network coupled to the decoding means for indicating the characteristics of the input speech signals. The purpose of the correlating step is to distinguish between different frequencies regardless of their relative amplitudes. For any given value of delay between two sampling instants one frequency gives a positive correlation and another gives a negative correlation. If tappings are taken at three adjacent points A, B; C on a delay line carrying a speech wave, the magnitudes of the signals can have four possible relationships: A<B<C; A<B>C; A>B<C; A>B>C. If these relationships are determined, the nature of the waveform can be found and the vowel which it represents. In Fig: 2, the speech signal from a source 10 is applied to a filter 12 having a non-linear response designed to improve the clarity of the signal. The output is passed via an automatic gain control 14 which restricts peak amplitudes to a certain maximum value but allows the other parts of a word signal to vary in amplitude. Frequency discriminator 16 divides the input wave into a high frequency part on line 17 and a low frequency part on line 18. Both parts are applied to delay lines 19, 20. Associated with each delay line are two correlation circuits 21, 22 and 23, 24. Each receives the undelayed speech signal and two delayed versions from different points on the delay line. Each correlation circuit comprises a transistor circuit in which signals A and B are compared and signals B and C are compared and the results combined. An output integrator receives positive current if the value of B is between the values of A and C and negative current if B is greater or less than both A and C. The four output signals are recoded in a diode circuit 25 to produce a sequence of markings on one of sixteen leads. A recognition circuit 26 consists of a number of sequentially operable trigger and gate circuits designed to respond to particular conditions appearing successively.
Patent GB-1192345-A (GB)
Title: Mechanism for Regulating the Periodicity of a Mechanical Oscillating System
Inventor: SIEFERT ROLAND
IPC: G04B18/00
Filed: 1969-01-24
Abstract: 1,192,345. Clocks and watches. KIENZLE UHRENFABRIKEN G.m.b.H. Jan. 24, 1969 [Jan 25, 1968], No. 4290/69. Heading G3T. A mechanical oscillating system, particularly for regulating the timekeeping rate of an electrically driven timepiece, comprises a rotary oscillator 7 having two radial arms of magnetic material and mounted between bearings 3, 8 for oscillation about a vertical axis, and a disc shaped permanent magnet 5 mounted adjacent the upper bearing 3 and rotatable about said axis for regulating the periodicity of the system whilst relieving axial thrust on the lower bearing 8. The oscillator 7 is driven via a spring 9 by a further oscillator 10 mounted between bearings 8, 12 and carrying permanent magnets 11 co-operating with coils (not shown) in an electromagnetic driving system.
Patent GB-1042021-A (GB)
Title: Improvements in carbon or the like bearings and machine parts and method of production thereof
Inventor: BRADSHAW JAMES RONALD
IPC: F16C33/04
Filed: 1962-02-05
Abstract: Articles such as bearings are produced from compositions comprising polytetrafluoroethylene and/or MoS2 with a carbon matrix and sufficient of an epoxy casting resin to produce a strongly bonded product.  The epoxy resin may be hardened by means of an amine or acid anhydride.
Patent GB-401664-A (GB)
Title: Synchronous machine coupled to a prime mover or to a driven machine
IPC: H02K5/24
Filed: 1932-02-15
Abstract: 401,664. Dynamo-electric machine supports. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 15, 1932, No. 4420. Convention date, June 20, 1931. Drawings to Specification. [Class 35.] In order to prevent undue oscillation of the rotor of a synchronous generator or motor through resonance with disturbances in the driving engine or the load the stator is mounted on springs. Formulae are given for calculating the moment of insertion of the stator and the resilience of the springs for different arrangements. In particular it is stated that two principal " coupling frequencies " will exist and that the amplitudes of the oscillations in those frequencies will be connected by given formulae, and that either the two amplitudes may be made equal and the higher frequency may be twice the lower, or that the amplitude of the higher frequency may be made small compared with that of the lower. Damping means may also be provided.
Patent GB-114461-A (GB)
Title: A Device for Protecting Paint and the like when Cleaning Knobs, Letterboxes, and other Brass Fittings on Doors and Cupboards and the like.
Inventor: WILLIAMS WINIFRED
IPC: A47L13/48
Filed: 1917-03-30
Abstract: 114,461. Williams, W., and Williams, J. March 30, 1917. Knobs and the like, guards for surrounding w h i l e cleaning. - Guards for protecting the paint &c. around knobs, letter-boxes, &c. during cleaning are made of cardboard or other pliable material b having a shaped aperture a to pass over or around the neck of the knob &c., with a slit c to one edge if necessary. The aperture may be enlarged by butting with scissors, and shaped to suit different objects, and the faces of the guard may be distinguished by colour or covered with cloth &c., so that the same side is always presented to the paint &c.
Patent GB-158908-A (GB)
Title: Improvements in and relating to the building of ferro-concrete ships and the like
IPC: B63B9/06
Filed: 1921-02-10
Abstract: 158,908. Teubert, W. Feb. 14, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Concrete vessels. - A method of construction of concrete ships comprises the use of a permanent floating mould a having an inner wall corresponding to the external shape of the ship, this shape being obtainable by means of paste-board, canvas, or like forms. On completion of a ship the mould is partially sunk and an end wall removed or opened in order to float the concrete vessel f out oi the mould. The water g in the mould is then pumped out and the mould refloated for use again. For hollow ship walls the inner skin is formed on paste-board, canvas, or the like.
Patent GB-1088744-A (GB)
Title: Process for producing dihydrocinnamic aldehyde and its alpha and/or p-alkyl derivatives
IPC: C07C45/29
Filed: 1965-02-03
Abstract: Compounds of formula <FORM:1088744/C2/1> wherein R1 and R2 are each H or alkyl, are prepared by vapour phase reaction at 150-500 DEG  under subatmospheric pressure, in presence of an alcohol-dehydrogenation or a hydrogenation catalyst, of either (a) the corresponding cinnamyl alcohol, or (b) the corresponding cinnamaldehyde with H2 or with a non-ethylenic primary or secondary alcohol.  In exemplified compounds, (i) R1 = H, Me2CH, MeEtCH or Me3C, and R2 = Me; (ii) R1 = H and R2 = amyl.
Patent GB-197736-A (GB)
Title: Improved means for recording the rate of flow of liquid through a filter bed and the resistance of the bed
IPC: G01F1/37
Filed: 1922-02-17
Abstract: 197,736. Kent, W. G. Feb. 17, 1922. Drawings to Specification. Filters with loose filtering-materials.-Records of the resistance of a filter bed and of the rate of flow therethrough are made on drums, rotated by clockwork and preferably coaxial, by pencils whose movements are controlled by the movements of rocking-beams or wheels, each connected to two displacers. The chambers for the displacers of the resistance record are respectively connected to a pipe leading from just above the filter bed and to. a pipe leading from just below the bed. The chambers for the flow record are connected respectively to a constriction or throat on a pipe through which the filtered liquid flows and to the upstream end of the pipe.
Patent GB-575395-A (GB)
Title: Improvements in or relating to electric oscillation generators
IPC: H03B5/28
Filed: 1944-03-15
Abstract: 575,395. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., HARTLEY, G. C., and KING, J; A. B. March 15, 1944, No. 4800. [Class 40 (v)] An oscillation generator comprises a thermionic valve amplifier having separate positive and negative feed-back paths with resistancecapacity means for frequency determination in the positive feed-back path and a directly heated thermistor in the negative feed-back path for stabilizing the output. The Figure shows a two-valve amplifier with positive feedback from the anode of valve V2 via blocking condenser K2 and the frequency controlling network having resistances R1 and R2 and capacities C1 and C2 to the grid of valve VI, and a negative feed-back path via K2 and the highly sensitive element or " thermistor " T, which has a negative temperature coefficient, to the cathode of the valve V1. Increase in anode voltage of the valve V2 decreases the resistance T, thereby increasing the negative feed-back so reducing the output. T and the cathode resistor R3 can be interchanged provided a thermistor with a positive temperature coefficient is now used. Frequency control can be effected by varying any of R1, R2, C1 and C2, the preferred method being to vary either, R1 and R2 together keeping the ratio R1/R2 constant, or C1 and C2 together keeping the ratio C1/C2 constant, thus ensuring a constant value of the positive feed-back.