baber/WOPTO huggingface dataset:
Patent GB-950087-A (GB)
Title: Fitting arrangements for fixing two elements one into the other
IPC: G04B31/06
Filed: 1960-09-09
Abstract: 950,087. Stud and socket fastenings. SEITZ & CO. Sept. 9, 1960 [Sept. 10, 1959], No. 31095/60. Heading E2B. [Also in Division F2] A fitting arrangement for fixing two elements one into the other comprising a plurality of axially extending fitting faces on one element and at least one axially extending fitting face on the other element, each fitting face being a surface of revolution and the arrangement being such that the elements are engaged by moving them relative to each other first axially and then by rotation so that in the engaged position, the fitting faces of both elements are coaxial and the outer element is resiliently distorted. As shown in Figs. 5 and 6, the outer element 40 has three projections 44 with fitting faces 43 and the inner element 57 has three co-operating faces 46. The diameter of the cylinder defining the faces 46 is slightly greater than the diameter of the cylinder defining the faces 43 so that when the faces 43 and 46 are engaged the member 40 is resiliently distorted. The element 37 contains two jewels 38, 39 both pressed into place with a force fit, jewel 38 being a thrust bearing and the jewel 39 a journal bearing. In a modification the jewel 38 is formed with the faces 46 and engages the faces 43 directly; in this modification the jewel 39 is a force fit in the element 40. Each projection of the outer element can be provided with a lip which overlaps the inner element. The engaging faces of the inner and outer elements can be located on the surfaces of imaginary cylinders as shown or alternatively can be located on the surfaces of imaginary cones. The faces of the projections and the corresponding faces of the inner element need not be on the same surface of revolution. To increase the resilience of the projections the wall containing them can be cut away underneath the projections so that the portions of the wall between the projections form pillars. In a modified construction Fig. 10a instead of providing the inner element with three separate engaging faces it can have a single engaging face and in such a case it is provided with a flat face 93 so that it can be inserted into the outer element, rotation will then cause the engaging face to engage the faces of the projections. In another construction Fig. 11 the inner element is provided with two engaging faces 89, 90 and the outer member is provided with a single engaging face; the outer element also has a notch 92 to enable the inner element to be inserted into the outer element after which rotation through 90 degrees causes the faces 89, 90 to engage the single face of the outer element.
Patent GB-1209260-A (GB)
Title: Methods of and apparatus for testing magnetic structures
IPC: B07C5/344
Filed: 1968-06-26
Abstract: 1,209,260. Acoustic inspection devices. INTERNATIONAL BUSINESS MACHINES CORP. 26 June, 1968 [14 July, 1967], No. 31124/68. Heading H4D. A method of testing e.g. a ferrite memory core for flaws such as cracks, chips or inconsistency in the material comprises vibrating the core e.g. by subjecting it to ultrasonic waves from a dynamic speaker swept through a frequency range including the anticipated resonant frequency of a sound core. Mechanical resonance of the core is detected by the signal induced in a conductor mounted within the magnetic field of the core (e.g. threaded through it). Cores with resonant frequencies outside the tolerance range are rejected.
Patent GB-758306-A (GB)
Title: Improvements in or relating to adhesive compositions
Inventor: BRANDNER JOHN DAVID
IPC: C09J131/04
Filed: 1954-10-28
Abstract: An adhesive composition comprises polyvinyl acetate and a polyethylene glycol ether of a phenol, the phenol containing no subtituents other than alkyl radicals and no more than 4 alkyl carbon atoms, and the polyethylene glycol containing at least 3 oxyethylene groups but not more than (12-1.5 C), wherein C is the number of alkyl carbon atoms.  Preferred ethers are the tetraethylene and hexaethylene glycol ethers of phenol and cresol. The components may be mixed in the dry state or the polyvinyl acetate may be an aqueous emulsion or a solution in a volatile solvent.  Optional additives are aqueous solutions of phenolformaldehyde condensation products giving compositions containing up to 50 per cent of the modifying resin, gum arabic and sodium carboxymethyl cellulose.  The compositions may be used to give tacky films and are useful in bookbinding and tabbing and for adhesive tapes and bandages.
Patent GB-1237747-A (GB)
Title: Screw caps for containers
IPC: B65D23/00
Filed: 1968-06-28
Abstract: 1,237,747. Caps for containers. COMPAGNIE FRANCAISE DES MATIERES PLASTIQUES PLASCO. 28 June, 1968 [30 June, 1967; 9 Feb., 1968], No. 31141/68. Heading B8T. A plastics cap 1 for a stick container comprises a plastics sealing disc 11 circularly engaging the cap inner wall between the ends of the cap to an annular rib or flange 10. In one embodiment the disc is held against rotation by a bridging member 14 integral with and extending diametrically across the flange 10 which engages in a slot 13 in an annular collar 12 on the sealing disc. The cap top portion 4 is welded or glued into the cap and is held at the correct position by vertical beads 8 1 , 8 2 . In another embodiment the generally disc-shaped sealing member is prevented from rotating by serrations at the end of an integral axially extending portion engaging corresponding serrationson an oppositely directed portion extending from the integral cap top. The annular rib may have gaps to allow pressure relief when snapping in the sealing disc.
Patent GB-1240238-A (GB)
Title: Sealing device for rotary vessels
Inventor: OBERNDORFER JOHANN
IPC: F16J13/02
Filed: 1969-06-19
Abstract: 1,240,238. Rotary seals. METALLGESELLSCHAFT A.G. 19 June, 1969 [6 July, 1968] No. 31147/69. Heading F2B. Apparatus for sealing the joint between a stationary part 5 and a rotary part 2, e.g. of a kiln, comprises compressed air piston/cylinder units 6 carried by the stationary part 5 for forcing a movable sealing member 4 against a sealing element 1 rigid with the rotary part 2. A secondary seal 15 lies between a collar 14 of the stationary part 5 and an annular bracket 11 mounting the sealing member 4.
Patent GB-763250-A (GB)
Title: Preparation of inorganic fluorine compounds
Inventor: JR WILLIAM A LALANDE
IPC: C01B9/08
Filed: 1953-11-10
Abstract: A mixture of an alkali metal fluosilicate with a sulphate of a non-alkali metal which forms neither water-soluble double fluorides nor water-soluble simple fluorides is subjected to a dry reaction at at least 200 DEG C. but below the temperature at which the mixture melts, to give a simple fluoride or a double alkali metal fluoride, depending on the ratios of the reactants.  If desired the silicon tetrafluoride evolved in the reaction may be recombined with the alkali metal salt produced, to regenerate the fluosilicate, which is recycled.  The reactants may be swept with a stream of inert gas during the reaction, preferably at at least 5 mls/min./sq. cm. of the reactor. or may be ground after initiation and before completion of the reaction.  The temperatures specified lie between 200 and 700 DEG C., and preferred ranges are given.  The products of the reaction are generally separated by washing or otherwise treating with water.  The preparation of magnesium, calcium, lead, ferric and aluminium fluorides, and of lithium aluminum fluoride, cryolite and chiolite is described; details are given about sodium magnesium fluoride; other metals mentioned are strontium, barium, zinc, antimony, cobalt and nickel.  Of the alkali metal fluosilicates, sodium, potassium and lithium fluosilicates are preferred.  Aluminium fluoride and the sodium aluminium fluorides above mentioned are discussed in detail, features referred to including the use of hydrated aluminium sulphate and the use of inert gases or aqueous solutions containing hydrogen fluoride to remove silica from the product.
Patent GB-1453806-A (GB)
Title: Abrasive cutting tool and method of making same
IPC: B24D11/00
Filed: 1974-07-15
Abstract: 1453806 Abrasive tools; brazing G H HALL 15 July 1974 [19 July 1973] 31251/74 Headings B3D and B3R A method of forming a cutting tool having a plurality of blocks 24 of composite comminuted abrasive in a bonding matrix affixed to a substrate 22 comprises connecting the blocks to the substrate by a braze comprising a layer 36 of an elastically pliant material having high thermal conductivity bonded to both the substrate and blocks by a metallic material 34, 38 which has a melting point below the melting point of both the matrix and substrate. The cutting tool is in the form of an endless wire 20 having helical grooves 26 formed in its surface and in which the abrasive blocks 24 are brazed. The wire is of cold worked and maraged steel of circular, elliptical, triangular or square cross-section and the grooves 26 are cold rolled into the wire. The brazing strip 32 is placed in the grooves and consists of the elastically pliant layer 36 of pure copper between two layers 34, 38 comprising, by weight, 50% silver, 16% cadmium, 15À5% of each of copper and zinc, and 3% nickel. The blocks 24 consist of diamond particles of different sizes, such as, by volume, 40% of 40-50 mesh, 40% of 50-60 mesh, and 20% of 60-30 mesh, although the particles may vary from 1 to 1200 microns in size. The matrix comprises principally copper or other malleable metal, whereby flexing of the wire does not cause cracking of the matrix, zinc, iron, tin, titanium, chromium, zirconium and brazing powder. The mixture of particles and matrix are shaped into the blocks and cured at 1000 C. for 1 minute. The cured blocks, which may be ¢ inch long, are clamped with a pressure of 100 psi in the slots and the wire induction heated to effect brazing by bonding of the metallic layers 34, 38 to the elastic layer 36 and the blocks and wire. The wire 20 is formed as a continuous loop 40 guided over sheaves 42, 44 driven by a motor and pulley arrangement 50, the layer 36 of the braze 32 being pliant to accommodate bending of the wire as it runs over the sheaves. The sheave 42, and preferably also sheave 40, have surfaces (56, Fig. 4, not shown) of elastically pliant material which causes the wire to rotate above its axis. The wire cutting tool may be used to cut a workpiece 32, such as granite, raised by an elevator with engagement with the tool.
Patent GB-673766-A (GB)
Title: Improved railway-vehicle bogie with twin bolsters
IPC: B61F3/06
Filed: 1949-12-06
Abstract: 673,766. Railway vehicle undercarriages. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. Dec. 6, 1949 [Dec. 30, 1948], No. 31264/49. Class 103(vi) A rail vehicle undercarriage comprises a sub-frame 18 supported on inner and outer plate springs 15, 16 the ends of which are connected by equalisers 11 pivoted at 9 to swing beams 6 which are suspended by swing links 7 from the bogie 1 spring mounted on the axle boxes 2. The king pin 25 engages a two-armed lever 33 to the free ends of which are pivoted links 34 connected to the swing beams 6 by pins 35. Specifications 624,593 and 644,038 are referred to.
Patent GB-520758-A (GB)
Title: Improvements in and relating to decorative lamp strings
IPC: H01R33/08
Filed: 1938-10-31
Abstract: 520,758. Two-part couplings. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 31, 1938, No. 31455. Convention date, Oct. 30, 1937. [Class 38 (i)] In a string of double-ended electric lamps, each lampholder comprises a pair of sockets joined by a bridging member. The contact 20, attached to the cable 21 by internal pieces 22 which pierce the, insulation and contact the wire, is enclosed in a rubber socket 15, around which pass the ends of the resilient connecting strap 16. The wire may be soldered to the contact, and, in a modification, the strap is of wire form, the ends being retained in a socket of moulded form. In a further modification, the sockets'and bridging member are formed in a moulded unit, spring-contacts being employed so that the lamp may be removed by a longitudinal movement of the lamp depressing one of the contacts.' The lamp may be suspended by a hook fastened to the strap which may also carry a reflector. Specification 514,264 is referred to.
Patent GB-1395877-A (GB)
Title: Receiver for the determination of the direction of received wave energy
IPC: G01S3/802
Filed: 1972-12-01
Abstract: 1395877 Direction-finding systems FRIED KRUPP GmbH 1 Dec 1972 [1 Sept 1972] 31514/74 Divided out of 1395599 Heading H4D A direction-finding system comprises two orthogonal pairs of receiving transducers 1a, 1b 2a, 2b, the distance between the two transducers of a pair being less than the received energy wavelength; a central omnidirectional transducer 3 whose output is fed to a 90 degree phase shifter 9; respective clipping amplifiers 5 for the transducer outputs; and two processing channels K1, K2 each including exclusive NOR gates 14, 15 whose third inputs 19 are negated, a switch 16 providing one of three output voltages +V, 0, -V in dependence on the gate outputs, and an integrator 12 for the switch output signal. Switch 16 output alternates, at the wave frequency, between 0 volts and one of the voltages +V, -V depending on whether the wave is incident on 1a before or after 1b (or on 2a before or after 2b). The mark/space ratio of switch 16 output is indicative of the angle of wave incidence. The integrator 12 outputs are applied to a CRO deflection system to display this angle. The clipping and gating arrangements ensure that, for moderate or good received wave signal-tonoise ratios the angle indication is substantially independent of signal amplitude.
Patent GB-1364293-A (GB)
Title: Valve for follow-up servo mechanism
IPC: F15B9/10
Filed: 1971-07-06
Abstract: 1364293 Axial-flow fans ROLLS-ROYCE (1971) Ltd 5 July 1972 [6 July 1971] 31518/71 Heading F1C [Also in Division G3] In a follow-up servo-mechanism for adjusting the pitch of the blades 15 in a fan, a valvemember 28 is displaced linearly by an operator 32 until inclined slots 45 communicate with bores, such as 48, leading to the chambers of a vane motor 21 which rotates until communication is again interrupted. The slots 45 are supplied through a passage 27 by a Gerotor pump 26 while exhaust from the motor 21 passes through bores, such as 54, and inclined slots 56 into an annular space 57. The piston 22 and cylinder 23 of the vane motor are connected by crown wheels 24, 25 to bevel gears 18 on the fan blades.
Patent GB-875063-A (GB)
Title: Improvements in or relating to signal expanders
Inventor: JARVIS JOHN ROY
IPC: H03G7/06
Filed: 1956-10-16
Abstract: 875,063. Volume expansion. POSTMASTER GENERAL. Oct. 23, 1957 [Oct. 16, 1956], No. 31519/56. Class 40 (4). [Also in Group XL (c)] A volume expansion circuit comprises a junction-type rectifier, which derives from the input signal a control current which is applied to the emitter-base circuit of a junction transistor amplifier in the signal transmission circuit. As shown the signal received over terminals 1, 2 is amplified by the junction transistor TX4 whose output is rectified by junction transistor TX 5 to provide a control current I c . The input impedance presented to the transistor TX5 is arranged to be high so that the control current I c  is strictly proportional to the input signal. The control current is applied to the emitterbase circuit of the junction transistors TX6, TX7 operating in push-pull in the signal transmission path. Since the emitter-base A.C. resistance is inversely proportional to the control current, then with the input impedance R 3  of this circuit made small, the gain of the circuit is directly proportional to the control current. As a result an expansion law of 2: 1 (measurements in decibels) is obtained. The arrangement permits of considerable variations in the characteristics of the transistors without affecting the expansion law. The Provisional Specification states that the expander may be put into the negative feedback loop of a highgain amplifier in order to produce a compressor.
Patent GB-1468948-A (GB)
Title: Deposition of solid compositions and semiconductor materials
IPC: C30B29/40
Filed: 1974-07-17
Abstract: 1468948 Semi-conductor compositions WESTINGHOUSE ELECTRIC CORP 17 July 1974 [23 July 1973] 31572/74 Heading H1K [Also in Division C7] A semi-conductor composition is formed by sputtering one component and simultaneously reacting a gas by an electric discharge to form another component. The substrate may be preheated and may be gallium arsenide. Examples of the sputtered material are Si, Ge, In, InSb, InAs, CdTe, PbTe, GaAs, GaSb, GaP, Ga, BN, BP, AlN, AlP, AlSb, AlAs, Al, SnB, and C, and of the gas GeH 4 , Ge(CH 3 ) 3 , SiCl 4 , SiH 4 , PH 3 AsH 3 , In(CH 3 ) 3 , SbH 3 , Bi(CH 3 ) 3 , Sn(CH 3 ) 4 , and Te(C 2 H 5 ) 2 . The gas may also include N 2  and Hg vapour. The Specification gives several (approx. 1000) examples of the compositions.
Patent GB-306204-A (GB)
Title: Improvements in plate disc arrangements for horse-hoes
IPC: A01B35/16
Filed: 1927-11-24
Abstract: 306,204. Hansen, J. A. Nov. 24, 1927. Disc-tool implements.- Pairs of discs for use on horse-hoes are mounted so as to be angularly adjustable about studs 10 projecting from heads 9 each fixed between two bars 6. 7 which are movable about a pivot bolt conecting them to a bow-shaped bar 4 adjustably clamped on the frame 3 of the horse-hoe. The discs 12 may be mounted on journals projecting from hubs or collars 13, 15 threaded on the stud 10. The collar 13 is provided with two sets of radial teeth engaging, respectively, with similar teeth on the head 9 and the collar 15. The discs are adjusted by turning the collars 13, 15 on the stud 10, and are fixed in position by screwing up a nut 16 on the stud 10. The pitch of the lower set of teeth may be twice as great as that of the upper set to facilitate equal adjustment of the two discs. A supporting chain may be connected to an arm projecting from the head 9. Pins and holes may be used for adjustment purposes instead of radial teeth.
Patent GB-1479672-A (GB)
Title: Colour television
IPC: H04N9/45
Filed: 1974-07-17
Abstract: 1479672 Colour television ROBERT BOSCH FERNSEHANLAGEN GmbH 17 July 1974 [25 July 1973] 31649/74 Heading H4F A PAL colour subcarrier having quarter-line offset and 25 Hz offset is produced by an oscillator 1, the 25 Hz offset being removed by a circuit 3, the resulting signal being frequency divided by 1135 at 5 to provide a signal at one quarter the line frequency which is fed to one input of a phase comparison circuit 6 which controls an oscillator 8 oscillating at a multiple (e.g. 84) of the line frequency, the output of which is fed to a circuit 7 which, by frequency division and logical coupling, produces synchronizing signals and a signal at one quarter the line frequency which is fed to the other input of the phase comparator 6. Circuit 7 provides at terminals 12-17 a line frequency sync signal, a half-line frequency sync signal, a field frequency sync signal, a synchronizing signal S, a blanking signal A, and a PAL recognition signal K respectively. Circuit 7 also produces a half-field frequency signal to control circuit 3 which suppresses one subcarrier cycle 25 times per second; a non-linear low pass member 9 may be included to remove disturbances caused by the action of circuit 3.
Patent GB-999760-A (GB)
Title: Improvements in and relating to the guidance of ballistic missiles
Inventor: SANDEMAN EDWARD KENNETH
IPC: F41G7/36
Filed: 1955-11-04
Abstract: 999, 760. Programme control of position. ENGLISH ELECTRIC CO. Ltd. Nov. 2, 1956 [Nov. 4,1955], No. 31668/55. Drawings to Specification. Heading G3N. In a ballistic missile guidance system, the actual and predicted missile positions are compared and the resultant signal used to cause the missile to make a damped approach towards the predicted path and to cut off the motor thrust at an instant after which the missile path is determined by inertia and the action of gravity. The missile position is determined by an accelerometer system, using an inertial frame of reference, the output of which is doubly integrated before comparison with the stored predicted position signals of a first function generator. The comparison signal (i.e. the separation vector) is first referred to an Earth frame of reference by the incorporation of a signal corresponding to the angle of rotation of the Earth. The comparison signal is next applied to a computer together with a signal from a second function generator corresponding to the tangent direction at the predicted trajectory, the computor derives the magnitude and direction of the vector normal from the missile to the tangent and this signal effects control of the missile acceleration to maintain the required path. A third function generator supplies a signal corresponding to the projection of the separation vector or the tangent to the required trojectory which is multiplied by velocity gradient along the missile path and an output signal is produced which cuts off the missile boost when the product equals the component rate of charge of the separation vector resolved along the tangent.
Patent GB-1022204-A (GB)
Title: Novel halogenated derivatives of cyclohexane
Inventor: ROBINSON ROBERT
IPC: C07C255/45
Filed: 1962-01-18
Abstract: The invention comprises 1 halo-2,2,6,6-tetrachlorocyclohexane carbonitriles, and a process for their preparation comprising treating 1 - hydroxy - 2,2,6,6 - tetrachlorocyclohexane carbonitrile with a halogenating agent. The halogenation may be carried out using an excess of thionyl chloride or thionyl bromide as the halogenating agent in the presence of a tertiary nitrogeneous base, e.g. pyridine, and in the presence or absence of an inert solvent, e.g. a chlorinated hydrocarbon.
Patent GB-767407-A (GB)
Title: An improved electric discharge lamp fitting
Inventor: FELTON FREDERICK DUDLEY
IPC: F21V17/00
Filed: 1953-11-17
Abstract: 767,407. Lighting fittings for tubular lamps. REVO ELECTRIC CO., Ltd. Feb. 17, 1955 [Nov. 17, 1953], No. 31810/53. Class 75(2) In a tubular electric discharge lamp fitting comprising a hollow supporting member a for the electrical gear and carrying end brackets a<SP>1</SP> for supporting the tubular lamp b and a reflector c engageable with the underside of the supporting member a by a lateral and turning or like movement when the lamp is in position, the reflector c has a depression c<SP>1</SP> spanned by a crossbar c<SP>2</SP> co-operable with a hook-like member d carried by an arm e pivotally mounted at e<SP>2</SP> to the supporting member a and protruding from the wall thereof to operatively draw the reflector towards the member a by engagement of the hook-like member d with the crossbar c<SP>2</SP>. The hook d has a shank d<SP>1</SP> protruding into the inverted channel support a and is spring loaded by a spring d<SP>2</SP> and slidable within in bearing e<SP>1</SP> in the arm e. The free end of the arm e projects through a stepped slot in the wall of the support member a so that when at the bottom of the slot the hood d can engage under the rod c<SP>2</SP> and when the arm is raised it draws the rod c<SP>2</SP> and brings the reflector up against the mouth of the support a, the spring d<SP>2</SP> being then compressed and the arm e is held by by the slot step. To this end the lever e is formed as a folded resilient strip, one leg e<SP>5</SP> of which rests on the slot step and must be pressed towards the other leg e<SP>4</SP> to take it off the step and allow the arm to move to the bottom of the slot when the reflector is to be unclamped for removal.