baber/WOPTO huggingface dataset:
Patent GB-1053001-A (GB)
IPC: A22C13/00
Abstract: 1,053,001. Sausage casings; skinless sausages. UNION CARBIDE CANADA Ltd. Jan. 8, 1965 [April 6, 1964], No. 843/65. Heading A2B. A sausage casing has a caramel-containing coating on its interior surface. The casing may be a conventional extruded and shirred casing. Preferably the coating contains 0.5-3.5 mg./sq.in. of caramel, and the casing preferably contains 10-25 wt. per cent moisture. A skinless sausage may be prepared by stuffing a casing as above, cooking, and then removing the casing, the caramel imparting a pleasing appearance to the sausage.
Patent GB-1054362-A (GB)
IPC: H03C3/09
Abstract: 1,054,362. Phase modulation; automatic frequency control systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 20, 1964 [March 20, 1963], No. 11156/63. Headings H3A and H3R. A phase-modulated microwave oscillator 1 has a portion of its output heterodyned with a harmonic of a crystal-controlled oscillator 6 in a mixer 7 fed from a waveguide directional coupler 3. The I.F. is phase compared with an equal frequency reference source in a phase detector 9 whose D.C. output is added to the modulating signal input. The magnitude of the modulating signal is such that the phase modulation does not exceed 90 degrees whereby phase-modulation and stabilization of the centre frequency is obtained. The system may be applied to an electron spin resonance spectrometer where the oscillator (klystron or backward wave tube) is maintained in tune with a cavity resonator containing a specimen to be examined.
Patent GB-1098937-A (GB)
Abstract: 1,098,937. Rotary wing aircraft. DORNIERWERKE G.m.b.H. Sept 3, 1965 [Sept. 4, 1964], No. 37723/65. Headings B7G and B7W. The rotor blades of a rotary wing aircraft are adjusted in pitch by a servomechanism acting directly on each blade. The blades carry jet nozzles by which they are driven, gas being supplied by a compressor on the aircraft, and are mounted on leaf springs 10, fixed to the rotor head. Two hydraulic servomotors 27 are attached to each blade at points on opposite sides of the feathering axis, to eliminate bending, and their valves are connected by links 35, 36 and a double bell-crank lever 34 to a common rod connected by a bell-crank on the rotor head and a rod passing vertically inside the rotor mast to a swashplate (30, Fig. 1, not shown). Fluid is supplied to the servomotors by pumps mounted on the rotor head and driven by an epicyclic gear train 21-25 meshing with a stationary sun gear 20. The servomotors may alternatively be electric and the pumps replaced by generators, or the swashplate may be replaced by an electric impulse generator and the control linkages dispensed with.
Patent GB-1228550-A (GB)
IPC: G06F13/24
Filed: 1969-04-30
Abstract: 1,228,550. Computer interrupt. STANDARD TELEPHONES & CABLES Ltd. 30 April, 1969, No. 21954/69. Heading G4A. A digital electric computer has at least one processor unit, at least one memory unit and at least one peripheral unit, for example a teleprinter, all connected by a multiwire one or two way interrupt bus. 4 by which one unit can interrupt one or more other units. A unit which generates an interrupt has an output store 8 with a separate output for each interrupt signal connected via amplifiers 6 to one or more other units. If the unit responds to interrupt signals it has an input store 7 with a separate input for each signal so that a signal on line 9 causes a second level interrupt in unit 2, the interrupt level thus depending on the line connections. The unit can also interrupt itself, i.e. a signal in line 10 causes a fourth level interrupt in unit 2.
Patent GB-1230878-A (GB)
IPC: F15C1/18
Filed: 1968-08-09
Abstract: 1,230,878. Fluidic devices. FOXBORO CO. 9 Aug., 1968 [18 Aug., 1967], No. 38282/68. Heading G4P. A non-deflection fluidic amplifier (Fig. 1) comprises a fluid, e.g. air, supplied to input 10 of conduit 11 of length to diameter ratio sufficient to establish laminar flow 14 discharging into chamber 13. The walls of the latter, 13a, 13b are critically spaced from the stream to allow upstream circulation through regions 29a, 29b, and control ports 15 open into constricted region 29e to direct a control flow transversely of the laminar flow at control points 27, 28. The chamber 13 expands into regions 29a, 29b which in turn expand at 20 into wings 26a, 26b vented to atmosphere at 22, and a receiver conduit 24 intermediate the wings is aligned with the laminar stream 14 and derives a signal connected to output port 25. In cross-section (Fig. 2) walls 13c, 13d are closely spaced from the laminar stream to boundary 21 of atmospheric vents 22 in the chamber wings, and a maximum output of port 25 signifies one condition. Control signal at port 15 disrupts the laminar flow downstream from point 27 so that the flow expands into chamber 13 and occupies regions 29a, 29b, 29c, 29d, and regeneratively interacts with walls 13a, 13b, 13c, 13d to produce increased disruption, and the flow output signal at port 25 is reduced to a minimum to signify OFF condition, with the disrupted flow venting through ports 22. The relationship between output signal and control flow shows a steady output until control flow reaches a critical point at which the output falls to a low value (Fig. 3, not shown). The device may be constructed of superimposed etched plates sealed together by bonding (Fig. 4; Figs. 5, 6; Figs. 7, 8, not shown) employing differing chamber profiles. Two supply conduits from a single source may be employed in combination to produce laminar flow. The device may alternatively be constructed by photo-engraving or plastic moulding the plates.
Patent GB-1231832-A (GB)
IPC: H01H5/18
Filed: 1968-10-30
Abstract: 1,231,832. Snap-action springs. DIAMOND H CONTROLS Ltd. 11 Nov., 1969 [30 Oct., 1968], No. 51526/68. Heading F2S. [Also in Division H1] A one-piece snap-action blade spring of the form shown in plan and elevation in Figs. 1 and 2 respectively is such that when the point H in Fig. 1 is secured, e.g. by a rivet, to a fixed mounting M as shown in Fig. 5, a force F applied to it beyond the junction portion J causes the spring's portion A to be compressed and its portions B to be tensioned. However, in contradistinction to the usual snap-action blade springs of this form, the construction is such that in the absence of external forces there is no stress in the spring portions. The spring is designed for use in electric switches: the contact C of Fig. 2 tends to move (e.g. against a fixed contact, not shown) in the direction of arrow x in Fig. 5 when a force F is first applied but moves suddenly in the opposite direction z if the force continues to be applied.
Patent GB-1233406-A (GB)
IPC: G05F1/573
Filed: 1968-07-01
Abstract: 1,233,406. Transistor control circuit. CESKOSLOVENSKA AKADEMIE Ved. 1 July, 1968 [16 Aug., 1967], No. 31352/68. Heading H3T. [Also in Division G3] Power supplied from a source 1 to an output 16 through a regulating member 2 is controlled by a signal at 8, 9 derived from an amplifier 4 in dependence upon an input signal 11, 10 which may be a pulse signal, there being a resistor between 9 and 10; and when the output 15 of the regulator reaches a certain level as determined by a reference source 3 with which it is compared at 12, 14 in the amplifier 4, the control signal at the output 9 of the amplifier is limited. The amplifier 4 contains a transistor (18, Fig. 2, not shown), the reference voltage (12) being applied to its emitter, and the fed-back output (14) being connected by a resistance chain (20-25) to its base. When the transistor conducts due to the output voltage 15 reaching the certain level a current flows in the resistor (17) connecting the input signal terminal (10) to the control signal terminal (9) to thereby reduce the control signal and effect limiting action. The transistor may be PNP or NPN and protection diodes (19, 22) are provided for when the input 10 is less than the reference voltage. A speed-up capacitor (28) is provided.
Patent GB-1233799-A (GB)
IPC: H01H36/02
Filed: 1968-10-30
Abstract: 1,233,799. Liquid level indication. W. BOURS [trading as J G. MERCKENS K.G.], Oct. 30, 1968 [Oct.31, 1967], No.51534/68. Heading G1H. Also in Division H1] A float operated movable magnet switch has an armature on an extension of the movable magnet member and a testing magnet which can be used to act on the armature to cause the movable member to actuate the switch. As shown, the float 4 is mounted on a rod 5 which has a magnet 10 at its upper end to act upon magnetic contact units 12- outside a non-magnetic tube 7 into which the rod 5 extends. A stop 19 on the rod 5 engages a guide disc 11 on the bottom of the tube 7 to limit downward movement of the float 4 and magnet 10. Above the magnet 10 the rod 5 has an extension 9 which carries an armature 15 within an extension 8 of the tube shown. The armature 15 may be of soft iron or a permanent magnet and is movable by an external testing magnet 16 to test the switch operation. As shown an axially magnetized annular permanent magnet 16 is the testing permanent magnet and is mounted on the bell-shaped end of a cap 18, which may be made from plastics material, of such dimensions that the magnet 16 can be moved beyond the armature 15 when the stop 19 is in engagement with the disc 11, to a position in which it no longer influences the armature 15. In an alternative arrangement Fig. 2 (not shown) the testing magnet is an electromagnet secured to the outside of the tube extension 8 and energizable in either direction to influence a permanent magnet armature on the float rod extension. A movable electromagnet may also be used.
Patent GB-1234268-A (GB)
IPC: B23Q5/20
Filed: 1968-11-14
Abstract: 1,234,268. Machine tools; indexing; milling; drilling. E. C. THOBROE. 10 Nov., 1969 [14 Nov., 1968], No. 54131/68. Headings B3B, B3C and B3K. A machine tool comprises a plurality of workholders 3 mounted on a turntable 1 which is indexible to bring the work-holders adjacent successive work stations, the work-holders having at least a workholding portion mounted to float laterally with respect to the carrier and locating means 13 being provided at each station to align the work-holder accurately. Each locating means comprises a rod having a conical end 12 adapted to be advanced by a fluid pressure cylinder and piston 14 into a corresponding recess in the work-holder. The rod 13 may transmit drive from a synchronous electric motor to the work-holder, e.g. to contra-rotate the work relative to the drill 17 or alternatively may index the work-holder to a precise angular position by means of cam and locking surfaces 26, 27 co-operating with pins 10 projecting from the work-holder. The work-holder may be mounted to tilt slightly for correct alignment by the locating means 13. Fluid pressure cylinder and piston means 21 provide for tool feed, drive to the tools being transmitted, e.g., by flexible drive shafts and through the fluid pressure pistons. The indexing drive for the turntable 1 includes ring gear 23.
Patent GB-1250887-A (GB)
IPC: D01F9/21
Filed: 1968-03-13
Abstract: 1,250,887. Carbon fibres. NATIONAL RESEARCH DEVELOPMENT CORP. 13 June, 1969 [13 March, 1968], No. 56687/67. Addition to 1,166,251. Heading C1A.  Carbonizable fibres are produced by heating fibres of polyvinylidene chloride in an oxidizing atmosphere whilst held under tension, at a temperature below that destructive to the fibre and for sufficient time to achieve substantially complete permeation of oxygen throughout the fibres. The fibres are wound on and secured to a frame and tension is developed as the fibres attempt to shrink when heated. Carbon fibres may be produced from these oxidized fibres by further heating to about 1000‹ C. in a non- oxidizing atmosphere, e.g. hydrogen, whilst still under tension. This is achieved advantageously by raising the temperature at a rate of 150‹ C. per hour. The resultant carbon fibres may be submitted to a further heating step above the carbonizing temperature and up to 2500‹ C. in a non-oxidizing atmosphere. In an example, polyvinylidene chloride fibres secured to a graphite frame are oxidized by heating in air for 48 hours at 160‹ C. and subsequently carbonized whilst restrained on the frame by heating in hydrogen to 1000‹ C. Some of the carbon fibres were finally heat-treated whilst restrained on the frame to 1550‹ C. and some to 2500‹ C. in an atmosphere of argon. Reference has been directed by the Comptroller to Specification 1,166,252.
Patent GB-1252145-A (GB)
IPC: F21V7/00
Filed: 1968-12-04
Abstract: 1,252,145. Vehicle headlamps. PROJECTEURS CIBIE. 4 Dec., 1968 [19 Dec., 1967], No. 57531/68. Heading F4R. A headlamp comprises a first iodine lamp 2 having a filament 2a which is shielded by a masking element 3 and is disposed slightly in front of the focus F1 Of a main paraboloidal reflector 1 so that it produces a dipped beam, and a second iodine lamp 5 located with its filament 5a at the focus of an auxiliary paraboloidal reflector 4 to produce a main beam. The aperture of the auxiliary reflector has a diameter substantially equal to half that of the aperture of the main reflector, and the edge of the aperture of the auxiliary reflector is substantially tangential to the plane or planes of cut-off defined by the masking element 3. The axis of the auxiliary reflector is laterally displaced relative to the vertical plane through the axis of the main reflector. The auxiliary reflector is adjustably mounted on the main reflector by means of a flexible connection 7 and a control screw 8.
Patent GB-1252970-A (GB)
IPC: B21K1/46
Filed: 1969-07-04
Abstract: 1,252,970. Rolling threads; making selftapping screws. U.S.M. CORP. 4 July, 1969 [5 July, 1968], No. 33811/69. Headings B3A and B3M. A pair of thread rolling dies 90, 92 are used to roll a thread on a self-tapping screw blank 74, and simultaneously to breakoff ears 76, 78 on the blank, and to remove an excess portion 80. The ears were produced by a previous swaging operation, and serve to provide cutting edges when broken away.  Each die has a threading section 106 and a flat section 110 for breaking the ears. Alternatively, only one of the dies need have a flat section 110. The die 90 additionally includes a tapered protrusion 108 for removing the portion 80.
Patent GB-1258866-A (GB)
IPC: E21D23/04
Filed: 1970-05-14
Abstract: 1,258,866. Advancing mine roof supports. GULLICK DOBSON Ltd. 14 May, 1970 [19 Sept., 1969], No. 23316/70. Heading E1P. In an advancing mine roof support having a wrap-round goaf side shield 6 co-operating with a relatively sliding barrier 9, collapse of the goaf into the space between adjacent supports is prevented by a flush guard 11 which is pivoted into contact with the side wall 5 of the adjacent support by a ram 16. The support is also provided with a rear mat or carrier platform 10 and may have two flush guards arranged at different heights to one another, see Figs. 3 and 4 (not shown).
Patent GB-1259552-A (GB)
IPC: H04M1/27495
Filed: 1969-05-08
Abstract: 1,259,552. Impulse generators. KERNFORSCHUNG m.b.H. GES. FUR. 8 May, 1969 [8 May, 1968], No. 23523/69. Heading H4K. In a repertory automatic dialler impulses are generated by a square wave generator which is controlled in accordance with the information contained in a diode matrix individual to a specific subscriber and mounted as a plug-in unit. Each row of the matrix represents the digital sum of the digits in the number and the matrix is interrogated, after dialling key 1 has been operated, by comparing the column wire outputs with the number of pulses generated by square wave generator 20 and fed into binary chain 8. When the number of pulses counted reaches the number stored in the first line of the matrix the diodes of this line become non- conducting and the potential at point 16 rises. This potential sets the monostable pause stage 19 which after a predetermined time resets and allows the pulses from the square wave generator 20 again to be stored in the binary chain 8. Equivalence of setting between the row of the matrix and the contents of chain 8 produces further interdigital pauses until on interrogation of the final row a potential at point 29 causes operation of clearing stage bi-stable 9 which operates to stop the square wave generator. The output of generator 20 also passes through OR gate 31 to operate transistor 32 which applies impulses to the line until stage 9 operates when transistor 312 is made conductive to override the impulsing control. After key 1 is operated a delay is provided by transistor 22 charging capacitor 23 so that the exchange equipment can be seized before impulsing commences. After impulsing is completed a variable time is allowed before a resetting impulse causes transistor 4 and the starting stage transistors to switch off.
Patent GB-1266293-A (GB)
IPC: B60T8/82
Filed: 1970-10-16
Abstract: 1,266,293. Antiskid braking systems. SOC. ANON. D.B.A. 16 Oct., 1970 [20 Nov., 1969], No. 49291/70. Heading F2F. A vehicle antiskid braking system has a first pressure modulator 20 controlled by an antiskid control unit 22 and modulating the braking pressure of front wheel actuators 16, 17 in response to changes of angular velocity of the front wheels and a second modulator unit 28 modulating the pressure of rear wheel actuators 26, 27 under the control of a comparator 30 which compares signals from sensors responsive to the front and rear wheel velocities so that the rear braking is controlled in dependence on the difference between the front and rear wheel velocities. Speed sensors 46, 47 on the front wheels have their signals fed to a selecting device 50 so that the signal fed to the comparator may be representative of the speed of the wheel having the lower speed and similarly the rear wheel sensors 56, 57 are coupled to a selector 60 which selects the signal of the higher rear wheel speed.
Patent GB-1289482-A (GB)
IPC: B21C23/03
Filed: 1968-12-09
Abstract: 1289482 Extruding UNITED KINGDOM ATOMIC ENERGY AUTHORITY 25 Nov 1969 [9 Dec 1968 21 Jan 1969 29 Jan 1969 11 Feb 1969 19 Feb 1969 3 Sept 1969] 58493/68 3489/69 4996/69 7409/69 9096/69 and 43716/69 Heading B3P An extrusion apparatus has a container of pressurized hydrostatic fluid to apply a compressive stress to a billet and a tool to apply additional compressive stress to a localized region of the billet to force it to flow through a die. In one form the tool 5 is rotatably mounted at the extrusion end of a hydrostatic container 1 and has a die 10 which is moved into the billet as it is hydrostatically forced towards the tool. The container wall is grooved, 17, to prevent rotation of the billet and is convexly, concavely or conically tapered. The billet may be lead, copper or aluminium and a reduction ratio of 1000 : 1 can be achieved at low hydraulic pressures. In a modification of the apparatus the tool has an annular working face 31, Fig. 5, and rotates on a fixed stem 27. The die aperture 32 is formed on a step on the surface. The extruded product is fed along the tool body. The apparatus can be modified by having the stationary stem (56), Fig. 6 (not shown), integral with a plunger (53) in the fluid container (41). In a further embodiment with a rotating die block (76), Fig. 7 (not shown), the billet is supported on a nylon sleeve (100) and the die block is loaded by disc weights (97).  In an alternative form of apparatus the additional compressive stress is applied by a plunger 117, Fig. 10, which is reciprocated at high speed and short stroke. The plunger may reciprocate in an extension bore (124), Fig. 11 (not shown), of the container (111). Alternatively the plunger 141, Fig. 12, serves to cause the billet to extrude through a radial passage 138, 140. Further the pressurizing plunger may be radial to the container, Fig. 16, and either embodiment may produce rods or tubes. The embodiments with a rotary tool may have a lubrication duct 238, Fig. 18, and be formed with more than one die aperture, Figs. 19, 20 (not shown). Further the die apertures may have a spider (245), Fig. 21 (not shown), to support a mandrel for tube extrusion or provide a wire feeding duct for wire coating.
Patent GB-1290410-A (GB)
IPC: F28D19/04
Filed: 1970-08-04
Abstract: 1290410 Thermal regenerators FORD MOTOR CO Ltd 4 Aug 1970 [2 Sept 1969] 37480/70 Heading F4K In a disc-type rotary regenerator comprising a central hub 10 surrounded by a porous core 12, a plurality of insert members 18 are bonded to the periphery of the core to form a continuous rim which is adapted to bear against peripheral seal 26 within the housing 28 of a gas turbine engine. The insert members which may be of graphite or boron nitride, are bonded, by material 20 such as silicon rubber, into a peripheral undercut 14 of L-shaped crosssection in the core 12. The ends of adjacent inserts 18 may interfit by means of mortise and tenon, dovetail (Fig. 3) or half lap joints (Fig. 4) to permit circumferential movement of the inserts while preventing radial leakage paths. In an alternative embodiment (see Figs. 4 and 5 not shown,) each insert (42) projects slightly beyond the circumference (46) of the core. A bonding material (48) fills the corner formed by the projecting surface of the inserts and the circumferential face (46) of the core; no bonding material is applied to the surfaces of the cut core. A circumferential spring (50) may be located in a peripheral groove (52) in the inserts to assist the bonding material in holding the inserts in place.
Patent GB-1290784-A (GB)
IPC: F16D65/14
Filed: 1970-01-16
Abstract: 1290784 Dual braking systems AUTOMOTIVE PRODUCTS CO Ltd 29 Dec 1970 [16 Jan 1970] 2254/70 Headings F2E and F2F In a dual fluid pressure braking system having brakes of the two-leading shoe type and two separate fluid pressure systems, one fluid pressure system actuates wheel cylinders 12 of each front brake 10 and wheel cylinders 15 of each rear brake 11 whilst the other actuates the other wheel cylinders 13 of each front brake 10 and motor cylinders actuating wedge expanders 16 of the rear wheel brakes 11, the motor cylinders also being spring applied and fluid pressure released for a parking application. For a service application fluid is passed to the brakes from two accumulators 21, 22 through a pedal operated valve 25. Adjacent each rear brake 11 is a manually controlled valve 46, Fig. 2 (not shown), having a piston (48), a land (54) of which permits communication between reservoirs 21, 22 and a motor chamber 33 during service application, pressure in chamber 33 causing actuation of a piston 35 and a wedge 36 which applies a thrust to plungers 29 connected to the brake shoe webs 30. At the same time a further land (53) communicates a motor chamber 34 with an accumulator 23, but when the valve (46) is moved into a parking position piston 48 is moved upwardly until land (54) isolates chamber 34 from accumulator 23 and connects it, together with chamber 33, to a reservoir 19 via valve 25. A piston 38 is thereby urged to apply the wedge 36 by means of Belleville washers 43 acting on a piston 44.