baber/WOPTO huggingface dataset:
Patent GB-1305662-A (GB)
IPC: B60C3/04
Filed: 1971-05-21
Abstract: 1305662 Pneumatic tyre GOODYEAR TIRE & RUBBER CO 21 May 1971 [29 June 1970] 16174/71 Heading B7C An aircraft pneumatic tyre 10 comprises a carcass and a tread 22 disposed circumferentially about the carcass, the carcass consisting of carcass plies 14 of tyre cord fabric, the cords of which are inclined to the mid-circumferential plane of the tyre, and belt plies 20 of tyre cord fabric disposed radially inwardly of the tread, the cords in the belt plies having a modulus of elasticity 29 and 35 grams per denier, there being a radial depression of depth d in the tread at the mid-circumferential plane when the tyre is in the shape in which it was cured, in use the tyre being intended to give increased resistance to heat build-up in the tread are and improved durability. The cords in the carcass plies 14 form an angle of not greater than 75 degrees with the mid-circumferential plane, and in order to provide circumferential restriction in the tread area the cords in the belt plies 20 form an angle with the mid-circumferential plane of between 5 and 30 dgrees less than the angle formed by the cords in the carcass plies. The depth d of the depression in the tread is defined by the equation d=0À05 SD<SP>2</SP>/SH where SD and SH are respectively the section width and height of the tyre as shown. The carcass and belt plies may be made from nylon tyre cord fabric. The belt plies 20 may be located radially outwardly of the carcass plies 14 (as shown), or alternatively one or more of the belt plies may be located between two or more of the carcass plies.
Patent GB-1033121-A (GB)
Title: Improvements in or relating to sealing arrangements for vacuum systems
Inventor: CRASWELL KENNETH BRIGGS
IPC: F16J15/00
Filed: 1963-04-24
Abstract: 1,033,121. Seals; pipe Joints. BIR-VAC Ltd. May 12, 1964 [April 24, 1963], No. 16203/63. Headings F2B and F2G. [Also in Division F1] In a vacuum system including members, e.g. 1, 13, joined together, a pair of spaced-apart sealing rings, e.g. 15, is located between and contacted by the members and the space between the sealing rings is connected by means of a line 32 to a vapour pump 28 for evacuating the space thereby minimizing leakage of air into the interiors of the members. The system comprises a two-part vacuum tank 1, 13 connected to a vapour pump 23 in series with the pump 28 which is backed up by a rotary pump 34. Valves are provided at 31, 33, 35 and a pressure gauge at 29. Sealing rings are provided between flanged parts at 4, 10, 15 and 25, the spaces between the rings being joined to line 32 by branch lines 32A, 32B, 32C and 32D. Heating means 36 are associated with the pumps 23, 28. Oil vapour passing upwardly from the pump 23 is condensed on arresters 17, 18 which are filled with liquid nitrogen.
Patent GB-561478-A (GB)
Title: Improvements in the manufacture of taps, reamers and the like
IPC: B23B31/00
Filed: 1942-11-17
Abstract: 561,478. Wrenches. LANFRANCONI, F. A. Nov. 17, 1942, No. 16245. [Class 61 (iii)] [Also in Group XXII] The shanks of taps, reamers, &c. are provided with three equal and equally spaced driving flats 4 separated by parts that preferably form part of the original shank periphery. The length of the flat side b is preferably twice that of the chord a. A- socket or wrench of corresponding form is employed for driving.
Patent GB-993669-A (GB)
Title: Process for the manufacture of mechanically stable shaped structures from semi-conducting compounds
IPC: H01L51/40
Filed: 1962-04-27
Abstract: Mechanically stable shaped structures are formed from semi-conducting compounds by shaping a pulverulent semi-conducting insoluble organic compound of high molecular weight having a melting-point of at least 450 DEG  C., at a temperature ranging from 150 DEG  to 400 DEG  C. under a pressure ranging from 1000 to 30,000 atmospheres, in the absence of a binder.  In the examples polyacrylonitrile and polyvinylformal are shaped.
Patent GB-761550-A (GB)
Title: Improvements in or relating to the application of chemical substances to molten metals
Inventor: KONDIC VOYA
IPC: C21C1/10
Filed: 1953-06-12
Abstract: 761,550. Treatment of molten metals; cast iron. FOUNDRY SERVICES, Ltd. June 14 1954 [June 12, 1953], No. 16288/53. Classes 72 and 82(1) Volatizable chemical substances are applied to molten metals in the vapour form by disposing the substance in a chamber communicating by way of an extended duct with the outside of the chamber, sealing the chamber and immersing the end of the duct in the metal thus causing the substance to be volatilized and to enter the metal at a rate dependent on the distance between the chamber and the surface of the metal. The process may be used to treat magnesium, aluminium, copper, nickel or iron with hexachlorethane or to add magnesium to cast iron. By use of an extended duct comprising graphite and a volatile substance which assists dissolution of graphite in molten iron an iron of enhanced carbon content may be obtained. In the apparatus shown the chamber is formed of two interfitting cups 4 and 7 which may be sealed by a packing 6 of graphite and asbestos. A duct 1 may be lined with graphite or made of graphite, carborundum, silica or heat-resisting steel. Volatile substance 12 is placed in the chamber which is then sealed by means of a U- shaped bar 14 and threaded rod 18, the horizontal portion 19 of which acts as a handle by means of which the seal can be tightened and the apparatus manipulated. Specifications 125,785 [Class 82(i)], 489,936 and 558,287 are referred to.
Patent GB-592789-A (GB)
Title: Improvements in or relating to arrangements for selecting electric pulses according to duration
IPC: G01R29/027
Filed: 1945-06-26
Abstract: 592,789. Pulse modulation. STANDARD TELEPHONES &. CABLES, Ltd. June 26, 1945, No. 16326. Convention date, May 15, 1943. [Class 40 (v)] A circuit for selecting pulses of a specified duration from a train of pulses, comprises a tuned circuit, the period of which is twice the specified duration, which is shock excited by the edges of each pulse and produces an undulation of maximum amplitude following the trailing edge of a desired pulse which is discriminated by a clipping circuit. The pulses 20 ... 23, Fig. 2 (a), are applied to a limiter valve 12, Fig. 1, the anode circuit of which comprises a load resistance R and tuned circuit 25. Connected across the latter is a valve 30 the control grid of which is connected to the anode of valve 12. The voltage wave at the junction of resistance R and circuit 25 is fed to a clipper stage 40 through lead 36. The edges of the amplitude limited pulses b, Fig. 2, in the anode circuit of valve 12, shock excite the tuned circuit 25. The leading and trailing edges 51, 55 respectively of the pulse corresponding to a desired pulse 20, produce negative and positive undulations 52, 56, curve c, respectively at the end 26 of circuit 25. The undulation 56 adds to the damped positive undulation 53, which normally follows undulation 52, to produce the resultant 60. The valve 30 is blocked by the input pulse during the negative undulation 52 and is non-conductive for positive voltage excursions such as 60. For the following damped negative undulations 54, 57, however, the valve 30 becomes conducting and suppresses any further shock-excited damped oscillations. Pulses of duration other than the desired value produce resultant positive undulations 61, 62, 63, of smaller amplitude than that of undulation 60 as shown in curve c, Fig. 2. The output of the tuned circuit 25 is clipped at level 80 by valve 40 so that the final output at point 41 comprises pulses 60a, Fig. 2 (d), corresponding to input pulses 20 only, which may be subsequently shaped for utilization. Specification 581,068 is referred to.
Patent GB-951470-A (GB)
Title: Improvements in and relating to getter devices and gettering methods
IPC: H01J7/18
Filed: 1961-05-05
Abstract: 951,470. Discharge apparatus. S.A.E.S. S.p.A. May 5, 1961 [Feb. 4, 1961], No. 16349/61. Heading HID. A method of gettering an evacuated enclosure e.g. an electric discharge tube, comprises heating within the enclosure a portion of vaporizable getter material 1, Fig. 3, disposed in a first annular groove or channel in a ring or disc-like member and a portion of unactivated non- vaporizable getter material 2 located in a second groove or channel radially spaced from the first to a temperature sufficient to evaporate the vaporizable material and activate the non- vaporizable material. The heating is preferably effected by H.F. currents travelling on the periphery of the member which is of metal, temperatures between 600‹ and 1500‹ C. being necessary. The unactivated material 2 may be pressed into an aperture instead of a groove, Fig. 2, or located in a groove inwardly, Figs. 3, 6, or outwardly, Fig. 9, of the groove containing the activated material.
Patent GB-1145381-A (GB)
Title: Contour tracer apparatus
Inventor: BARDWELL FRANCIS GREGORY
IPC: B23Q35/12
Filed: 1966-04-14
Abstract: 1,145,381. Template followers. STEWART-WARNER CORP. April 14, 1966 [April 16, 1965], No. 16377/66. Heading G3N. A template following system is responsive to code-marks on the template adjacent to contour indicia to transfer from one mode of operation to another e.g. from moving between areas to working on an area reached. As shown, a scanning head 20 optically views a pattern 22 and through a circuit 60 and resolver 46 controls a co-ordinate drive 24, moving the head around the pattern. A milling tool 26 is mechanically, or electrically, connected to the head 20. Code-marks on the template are detected by a photo-cell mounted on the head 20, see Figs. 3 and 4 (not shown), to actuate a sequence controller 76 to initiate say, a transfer from a leading line to a contour line which is completed through actuation of the controller by a detector 80, responsive to the output of the circuit 60, when the head 20 moves off the leading line. The sequence controller then initiates the operation of the tool 26 along the contour line and the subsequent return, at the code-mark, to the leading line and movement to the next code-mark. The speed of traverse of the head 20 is adjusted by the controller 76 by varying the reference frequency to the resolver 46 through a control 70. The forms of template with which the system is operable are discussed with respect to Figs. 2, 9, 13, 14 (not shown), and employ edge or line following heads.
Patent GB-1182931-A (GB)
Title: A Thin-Walled Container.
Inventor: THIEL ALFONS WILHELM
IPC: B65D1/26
Filed: 1967-04-10
Abstract: 1,182,931. Nestable containers. A. W. THIEL. 10 April, 1967 [9 April, 1966], No. 16393/67. Heading A4A. A thin-walled nestable thermoplastics container comprises a base, a divergent side wall and a nesting surface formed in the base, the nesting surface comprising a central portion with radial spokes extending from it, at least a part of the surface being at the top of upwardly divergent sides.
Patent GB-1084933-A (GB)
Title: Piston for a pump or motor
Inventor: RICKETTS CHARLES JAMES
IPC: F01B3/00
Filed: 1965-04-15
Abstract: 1,084,933. Hydraulic reciprocating motors and pumps. SUNDSTRAND CORPORATION. April 15, 1965, No.16399/65. Heading F1A. [Also in Division F2] A piston 20 for an hydraulic pump or motor comprises a body 200 having a hollow interior 202 filled with a filler body 204 axially located in the body 200 by engagement with a substantially circumferential groove or grooves 206 formed in the wall of the interior 202. The grooves 206 may be individual axially spaced circumferential grooves or may be convolutions of a thread in which case axially extending grooves 208 are formed in the interior wall to prevent the body 204 threading its way backwardly out of the body 200 in use. The body 200 may be of steel and the filler material may be thermosetting asbestos filled phenolic resin. The grooves may have rounded bottom portions (207), Fig. and rounded or flattened top portions (212, 214). In the pump or motor of Fig. 1 (not shown), the cam-plate (31) is tiltable about trunnions (28), (29).
Patent GB-478051-A (GB)
Title: An improved method of and apparatus for bending helical-shaped or twisted steel and like bars
IPC: B21D11/12
Filed: 1937-06-14
Abstract: 478,051. Angular bending. CALLEBAUT, L. E. June 14, 1937, No. 16426. [Class 83 (iv)] A former for the angular bending of twisted bars comprises a body 11 with a plurality of grooves 12 of radius r slightly greater than that of the circumscribed circle of the bar and tangential extensions 13 of a length t equal to half the radius of the groove. 12. The former is attached to the rotary bending disc and a clamp is used which is extended to bridge the twists in the bars. Specification 449,800 is referred to.
Patent GB-738583-A (GB)
Title: Improvements in or relating to vehicles with a plurality of axles
IPC: B62D13/02
Filed: 1952-06-30
Abstract: 738,583. Steering vehicles. SCHMITZ, J. June 30, 1952, No. 16435/52. Class 79(5). In a vehicle having a two axle support the forward axle 1 is pivotally connected to the vehicle frame at 5 by forwardly converging members 4, members 8 slidably engage the axles of the support and are independently pivoted to the frame at 9, 9<SP>1</SP>, and the rear axle 2 of the support is pivotally connected by forwardly converging members 12 to a point 11 on the axle 1, or on a member connected to the axle 1, whereby steerable deflection of the wheels of a front axle (not shown) of the vehicle causes deflection of the axles 1, 2. In the embodiment shown in Fig. 2 the members 8 are in the form of leaf springs and the ends of the springs rest on the axles 1, 2, between stops 10, 10<SP>1</SP>. In the embodiment shown in Fig. 3 the vehicle has two such supports side by side, the front axles 1 being pivotally connected by the members 4 to the vehicle frame at 5, 51 and carrying rearwardly converging members 16 to which the members 12 of the axles 2 are pivoted at 15.
Patent GB-185856-A (GB)
Title: Improved means for damping adhesive labels, tickets and such like
IPC: B65C11/04
Filed: 1921-06-15
Abstract: 185,856. Provis, R. S. June 15, 1921. Vaporizers, atmospheric.-A cover for a container a for water, gum, or disinfectant consists of a fabric disc c enclosed between a flanged ring b and a flanged grating d. Capillary wicks e may depend from the disc c. The part b may be formed with an upwardly extending curved flange.
Patent GB-1177987-A (GB)
Title: Improvements in and relating to Resistance Welding COntrol Systems
Inventor: CATHERALL REGINALD
IPC: B23K11/25
Filed: 1967-04-11
Abstract: 1,177,987. Control systems for resistance welding apparatus. SOLARTRON ELECTRONIC GROUP Ltd. 5 April, 1968 [11 April, 1967], No. 16491/67. Heading H2H. In order to inhibit the discharge of molten metal from a weld in a resistance welding operation the resistance of the weld is monitored such that when the weld resistance suddenly undergoes a considerable drop-indicating that the weld interfaces have become molten-the supply of current to the weld is terminated. Current is supplied to the electrodes of a resistance welding apparatus from an A.C. source by way of a controlled ignition and a transformer. During each half cycle of the welding current both the voltage across the welding electrodes and the current flowing in the weld are measured to produce successions of signals, the frequency of these measurements being determined by a synchronous timer running at eight times the supply frequency. The signals so derived are rectified and passed to integrating devices so as to obtain mean values of the signals, the signal representing the electrode voltage then being divided by the signal representing the welding current thereby producing a succession of signals which are representative of the weld resistance. These latter signals are then applied to a circuit device which compares each resistance signal with the succeeding resistance signal and functions to produce a signal which is an exponential function of the resistance between the welding electrodes which signal is operative to charge a control capacitor. Before the metal at the interfaces of the weld becomes molten the weld resistance remains constant and the capacitor charges to a value at which it remains constant. When the weld interfaces become molten the resistance thereof drops suddenly so causing a sudden fall of the charge on the capacitor which causes a signal to be applied to the ignitrons in the welding supply circuit to terminate the flow of current in the weld.
Patent GB-1081963-A (GB)
Title: Motor vehicle independent rear suspension
IPC: B60G11/06
Filed: 1966-04-15
Abstract: 1,081,963. Independent rear suspensions. FORD MOTOR CO. Ltd. April 15, 1966 [May 19, 1965], No. 16543/66. Heading B7D. In an independent rear suspension of a frontwheel-drive vehicle, each rear wheel 10 is carried by an arm 11 which pivots about an axis 13 extending outwardly and forwardly of the vehicle and is sprung by a leaf spring 14 extending substantially perpendicularly of the axis 13. A downward extension (19, Fig. 3, not shown) of each arm 11 surrounds the spring 14 and bears against the underside thereof through a rubber member (21). Resilient mountings (17, 18, Fig. 2, not shown) connect the ends of each spring 14 to the vehicle body, and shock absorbers (29) are connected between the body and the arms 11.
Patent GB-1416835-A (GB)
Title: Process for preparing ethylene polymers
IPC: C08F6/06
Filed: 1974-04-16
Abstract: 1416835 Fibrous polyethylene STAMICARBON BV 16 April 1974 [18 April 1973] 16557/74 Heading C3P Polyethylene is obtained in fibrous form by polymerizing ethylene under high pressure, expanding the product to an intermediate stage at which the polymer is in the liquid phase and then in a final stage in which the polymer forms a fibrous solid. Preferably the enthalpy of the monomers supplied to the final stage is 145-210 kcal./kg. higher than the enthalpy of liquid ethylene at the boiling point of ethylene at 1 kg./cm.<SP>2</SP>. The expansion may be effected in a device (Fig. 2, not shown) comprising a valve for the first expansion connected via a chamber to a tubular expansion conduit.
Patent GB-121312-A (GB)
Title: A Maximum Demand Controller and Load Indicator for Electric Power Installations.
Inventor: GOW COLIN CLARENCE
IPC: H01H71/44
Filed: 1917-11-12
Abstract: 121,312. Gow, C. C. Nov. 12, 1917. Differential speed indicators: particular-speed alarms. - An instrument for indicating the rate of consumption of electric energy during definite successive periods, is also arranged to give a warning when the consumption approaches a definite limit and to cut off the supply when the limit is reached. In the form shown, two tapes M, N, carrying weights m, n, and pointers are wound on to drums L', L<2>, by electromagnetic clutch-and-brake gear under the control of a watt-hour meter and a clock respectively; the drums are periodically released to reset the tapes by a clock-controlled electro-magnet F. The tape M controlled by the meter also carries a contact member m<1> to engage successively contacts 14, 15 connected to a bell G and contacts 15, 16 connected to a relay magmagnet 4, the armature of which completes the circuit of a trip-coil K for the main switch. The clutch-and-brake gear for the drums L<1> comprises a magnet E energized through a relay D from a local battery circuit 3, 4 and moving two armatures e<1>, e<2>, the first of which acts promptly through a link 19 upon a lever 20 to release a brake 22 and through levers 34, 36 to apply a clutch 27 to the drum, the second acting through a lever 25 to move the clutch and the piston 28 of an adjustably mounted dash-pot 30, the stroke of which can be regulated by a screw 32. The clutch- and-brake gear for the drum L<2> is of similar construction, and the armature f of the magnet lifts both brake levers, thus allowing tne drums to run down upon stops 39.
Patent GB-1432421-A (GB)
Title: Electronic calculator
IPC: G06F3/02
Filed: 1973-04-06
Abstract: 1432421 Electronic calculator TEXAS INSTRUMENTS Inc 6 April 1973 [22 May 1972] 16587/73 Heading G4A An electronic calculator includes a matrix array of key switches connected between column inputs and row outputs, a display means having a plurality of inputs, scanning means for scanning in a fixed cyclic sequence the display inputs and corresponding column inputs to the key matrix, and means producing respectively first and second multibit numbers dependent upon which of the display inputs is currently which of the display inputs is currently being scanned and which key row output, corresponding to an actuated key, is energized. The calculator is formed on L.S.I. integrated circuit chips and is described in some detail together with a microprogram listing. The multibit numbers together identify an actuated key switch and may be used to address the read only microprogram register. Specifications 1,401,203, 1,401,204 and 1,401,265 are referred to in the Specification.
Patent GB-182455-A (GB)
Title: Weighing machine with automatic indicating or printing device
IPC: G01G23/18
Filed: 1922-06-15
Abstract: 182,455. Seitz-Werke Ges. July 1, 1921, [Convention date]. Printed records, apparatus for giving.-The automatic indicating or printing device of a weighing-machine is arranged independently of the setting device for the weighing-machine and is only set in operation after the setting has been effected, by the insertion of a coin or by other manipulation. A sector 1, Fig. 1, is adapted to move on its pivot b to a position corresponding to the load weighed and comprises three segments a, c, d which are graduated on their edges according to different denominations of weight, the graduations taking the form of steps in the cases of the tens and hundreds segments c and d, and of horizontal projections k in the case of the units segment a. Three keys l, m, n. Figs. 1 and 3, arranged in a vertical slide o are adapted to co-operate one with each of the segments a, c, d and are controlled by a rod f through a rocking-lever q. Printing sectors p pivoted in a bracket u are constrained to follow the motion of their corresponding keys by means of springs u<1> or similar devices. When the rod f is raised, by the insertion of a coin or by other manipulation, the keys are released and bear with their lower ends on the segments or in the case of the units key n, with one of the steps n<1> bearing on a projection k. The type sectors p rotate into position and are raised by means of levers i, i<2> and against the action of a spring v into contact with a card on a platen q. In a modification the platen q is emitted and the type sectors are used as indicators,