baber/WOPTO huggingface dataset:
Patent GB-1466594-A (GB)
Title: Detection means for discontinuities in medium flowing in a flow path
IPC: F17D3/01
Filed: 1974-07-25
Abstract: 1466594 Electro-physical measurement - flow detectors E B WOLSTENHOLME 25 July 1974 [27 July 1973] 32964/74 Heading G1N Apparatus for detecting a change in a flowing fluid, comprises a constriction in the flow-path with a sensor adjacent but outside the narrowest part of the constriction, means being provided to monitor changes in electrical impedance between this sensor and at least one further sensor to indicate the passage of a discontinuity in the fluid. As described to detect air bubbles in blood e.g. for a transfusion capacitor electrodes are arranged around a Venturi constriction in the flow-pipe. The capacitor varies the frequency of an oscillator, which is detected by a frequency-discriminator to operate an alarm circuit. A rate-of-change circuit is connected to the discriminator output to eliminate long-term D.C. drift signals.
Patent GB-521402-A (GB)
Title: Improvements in tethering fittings for stables
IPC: A01K1/08
Filed: 1938-11-15
Abstract: 521,402. Tethering animals. MORGAN, P. Nov. 15, 1938, No:. 33138. [Class 62] A device for tethering animals in stables or byres comprises apair of pivoted jaws 6, 9, Fig. 1, that grip a ring 11 to which a tethering rope or chain is attached, the jaw 6 being arranged horizontally and fixed in position while the jaw 9 is: movable in a vertical plane. Means are provided for releasing the ring 11 in an emergency. The jaw 6 is fixed to a wall or rail in a stall, and the jaw 9 is provided with a depending lug 10, both jaws being recessed to retain the ring 11. The locking - device comprises a wedge 15 which slides between the lug 10 and a fixed backplate 5, and the ring 11 is released when the wedge is withdrawn. When such devices are fixed to a number of stalls, the wedges 15 are fixed to a rod 12, Fig. 2, that slides through fixed brackets and may pass through an end wall of the stable and be provided with a handle by which all the tethering rings can be released. The other end of the bar may be attached to a spring-controlled or counterweighted bell-crank, and a pivoted catch may hold the bell-crank in an inoperative position. The catch may be released by hand, or by a thermally-responsive device in case of fire, to allow the spring or counterweight to pull the bar and release all the tethering rings.
Patent GB-310750-A (GB)
Title: Apparatus for controlling the circulation of cooling water in internal combustion engines
IPC: F01P7/14
Filed: 1929-01-12
Abstract: 310,750. McIntosh, H. T. Jan. 12, 1929. Cylinders, cooling.- A valve unit 1, for insertion in the upper water connection between the engine and radiator of a motor-car is adaptable to different sizes of hose by the provision of a number of ends 10 having different diameters and screwed to it at 9. A spindle 5 carries a butterfly valve 4, passes through a stuffing gland, and is fitted with a lever, which is connected to a knob accessible to the motorcar driver.
Patent GB-368702-A (GB)
Title: Improvements in or relating to turbines
IPC: F02C7/00
Filed: 1930-11-04
Abstract: 368,702. Gas turbine plant. AKTIEBOLAGET MILO, 17, Võstra Tradgardsgaban, Stockholm. Nov. 4, 1930, No. 33155. Convention date, March 24, [Class 110 (iii).] In an electric installation comprising a central power plant 70, 71 for covering the base load, the peak load at sub-stations 73, 74 at a remote point 75 is covered by gas turbine plants 79, 80. These plants may be near to or combined with the substations. Specifications 368,317, 368,318, and 368,319 are referred to.
Patent GB-604889-A (GB)
Title: Improvements in or relating to forming and cutting tools
IPC: B23Q35/10
Filed: 1945-12-07
Abstract: 604,889. Diamond &c. tools; trueing grinding wheels. ENGINEERING DIAMONDS, Ltd., and ALLEN, R. Dec. 7, 1945, No. 33210. [Classes 60 and 124] Apparatus for forming or cutting a circular concavity A or convexity of predetermined radius on a grinding wheel B or the like, comprises a diamond point C or other tool held by a carrier H having sliding and pivotal connection with a base structure L, the distance from the pivot D to the tool point being twice the predetermined radius when the tool is in its central position, but being progressively reduced as the carrier moves about its pivot to either side of its central position. For this purpose, the tool carrier is provided with a follower surface E which is at right angles, or other definite angle, to the centre line of the tool, and which bears against a stationary circular template F. With the pivot D arranged on the same (as shown) or opposite side of the tool point as the tool carrier, a concavity (as shown) or convexity is obtained. In the form shown in Fig. 5, the carrier H is slidably mounted in a plate J pivoted on an upstanding bracket K, is fitted with an operating handle O, and has a depending portion M attached to a follower E<SP>1</SP>, the surface E of which is held against the template F by means of a spring N. For varying the predetermined radius, the template F is carried by an adjustable sliding plate P, the distance of which from a setting face R may be measured.
Patent GB-992653-A (GB)
Title: A fluid-actuated control system
IPC: G05B6/05
Filed: 1962-08-30
Abstract: 992,653. Valves. BRISTOL CO. Aug. 30, 1962 [Sept. 1, 1961], No. 33298/62. Heading F2V. [Also in Division G3] In a process controller (see Division G3) the transfer between automatic and manual modes of control is effected by a three-way valve assembly 124 which comprises three spring- loaded valve members 140, 141, 142 each having a ball 145 which rides the surface of an actuating shaft 136. Specifications 785,009 and 992,652 are referred to.
Patent GB-428200-A (GB)
Title: Improvements in and relating to apparatus for measuring or metering the flow of dry material in a chute or the like
IPC: G01F15/07
Filed: 1934-11-19
Abstract: 428,200. Flow meters for granular &c. materials. COPES REGULATORS, Ltd., 5, Theobalds Road, London..-(Northern Equipment Co. ; 1945, Grove Drive, Erie, Pennsylvania, U.S.A.) Nov. 19, 1934, No. 33302. [Class 69 (i)] In apparatus for measuring the flow of dry material in a shoot &c., a roller extending into the shoot has a surface engaging the material, part at least of the surface being inclined or transverse to the axis of rotation. The roller 6 may be of spheroidal shape, is mounted in a housing 5 secured to an adapter 3 permanently mounted in an opening in the shoot, and has a yielding covering 7. A sealing ring 13, and inspection covers are provided. Recording or counting apparatus is driven from an eccentric on the roller shaft through a connecting rod adjustably pivoted to a crank. In modifications, a cylindrical roller or a disc is employed.
Patent GB-836476-A (GB)
Title: Apparatus for the thermo-electrical measurement of infra-red radiation
Inventor: GAERTNER HEINRICH
IPC: G01J5/62
Filed: 1957-10-25
Abstract: 836,476. Infra-red detecting apparatus. ENERGIEVERSORGUNG ERFURT VEB. Oct. 25, 1957, No. 33323/57. Class 40 (3). Apparatus for detecting faulty contacts in electric transmission systems by measuring infra-red radiation comprises a rotary shutter for periodically interrupting the radiation, a thermo-couple 2 on to which the interrupted radiation is directed and a coupling transformer 4, 5, 6 by which the thermo-couple is connected to an indicator device, the secondary circuit of the transformer being an oscillatory circuit tuned to the frequency at which the rotary shutter interrupts the radiation. A direct current supply 3 may be connected in series with the thermo-couple for combining a bolometric effect with the thermo-electric effect. In an arrangement for eliminating signals due to background radiation, two thermocouples 2, 8, Fig. 2, placed side by side and connected to opposed primary windings of the transformer are equally exposed to background radiation whilst one only of the thermocouples is exposed by the radiation to be measured. The thermocouple 8 may be disconnected if desired and replaced by a resistor 9 which keeps the circuit matched to the tiansformer. Thermocouples 2, 8 may be connected to a D.C. source 3 to obtain a bolometric in addition to a thermoelectric effect.
Patent GB-691247-A (GB)
Title: Improvements in or relating to control devices for gas heated apparatus
IPC: F23N1/00
Filed: 1949-12-30
Abstract: 691,247. Fluid-pressure-actuated servomotorcontrol systems. KROMSCHRODER AKT.-GES., G. Dec. 30, 1949 [Dec. 30, 1948], No. 33334/49. Class 135 A gas supply control device for gas-heated apparatus comprises a main valve having a diaphragm fully exposed to inlet gas pressure and forming the lower wall of a control chamber containing an auxiliary gas-pressure controlled valve carried by a second diaphragm so as to open or close, under the pressure of gas controlled by a temperature feeler responsive to the temperature of the apparatus, and respectively unload or load the main valve diaphragm. As shown in Fig. 2, gas flows from the mains through the pipe 2, valve chamber 3 and pipes 9, 10, to a hand-operated valve 11 which, when momentarily opened allows gas to be ignited at 36 to heat a bi-metal strip 13 and open a valve 14. Gas now flows to the highly throttled pilot burner 21, is ignited and heats the strip when the flame 36 is extinguished. Gas also flows through pipe 22, a valve 24, kept open by a rod and tube temperature responsive device 25, 26, when cold, a pipe 27, chamber 28, high throttle 33 and auxiliary burner 34 where it is ignited. The pressure in chamber 28 acts on a diaphragm 18 and opens an auxiliary valve 17 into a control chamber 16 to allow gas, entering via pipe 15 and throttle 29, to escape via the low throttle 37 to the burner 34, thus reducing the pressure in the control chamber and allowing the diaphragm 5 to rise and open the main valve 6 allowing gas to flow. to the burner 7. The burner now heats the temperature responsive device so that the valve 24 is increasingly throttled and the pressure in chamber 28 reduced until the valve 17 closes. The pressure in chamber 16 then increases and closes the main valve. In the embodiment of Fig. 6, mains gas flows through valve chamber 54, pipe 55, thermallyactuated valve 67 and pipe 70 to chamber 71, and from this chamber through a throttle 73 to an auxiliary burner 65 where it is ignited. The pressure in chamber 71 acting on a diaphragm 59 closes an auxiliary valve 60 of a control chamber 61. Since there is no excess pressure in chamber 61 due to the throttled connection 64 to the burner 65 the diaphragm rises and opens the main valve 63 so that gas flows to the burner 53. The temperature responsive device 68, 69 is now heated and closes the valve 67 so that the pressure in chamber 71 decreases and valve 60 opens. Gas then flows from the pipe 55 through a low throttle 56 into the chamber 61 and the increased pressure closes the main valve.
Patent GB-472365-A (GB)
Title: Improvements in and relating to electrolytic condensers and the like
IPC: H01G9/02
Filed: 1936-12-04
Abstract: 472,365. Electrolytic condensers. MALLORY PATENTS HOLDING CO., Ltd. (Mallory & Co., Inc., P. R.) Dec. 4, 1936, No. 33342. [Class 37] Shellac is heated with potassium borate and a plasticizer at least to a temperature of 130‹ C. to produce an electrolyte. The plasticizer may be a glycol or a mixture of ethylene glycol glycerine and triethanolamine. Preferred proportions are given. Specifications 388,395 and 468,270 are referred to.
Patent GB-1019844-A (GB)
Title: Differential mechanism
IPC: F16H48/22
Filed: 1963-08-23
Abstract: 1,019,844. Differential gearing. BORGWARNER CORPORATION. Aug. 23, 1963 [Sept. 7, 1962], No. 33485/63. Heading F2D. In a limited slip differential of the planetary bevel gear type in which differential action is resisted by cored, or multiplate, friction clutches 40, 42 between the respective sidewheels 36, 38 splined on output shafts 24, 26 and an input casing 10 having the usual ring gear and housing bevel planets 13a, 13b carried on a cross-shaft 11, the clutches are engaged and pre-loaded by the spring pressure of cartridge-type assemblies A which are constructed to facilitate their insertion and removal through apertures 33a, 33b in the casing 10, the spring engaging load of the clutches being further reinforced in operation by gear tooth reaction. The units A each comprise a number of coil-springs 60 encased in box-like members 56, 58 secured together, with limited relative movement, by slot 56d and pip 58d connections, each unit having tongues 56b, 58b by which it may be squeezed, by for example pliers, to facilitate assembly, or removal, of the spring units to, or from, the casing, the units additionally having tabs 59 by which they are positioned and retained in the casing. L-shaped axial . thrust support blocks 50a, 50b are arranged between the shaft ends 24, 26 and are seated on the planet pinions cross shaft 11, and in Fig. 5 (not shown), these blocks are each fixedly or loosely connected to its adjacent spring unit A. As shown, and in Fig. 5 (not shown), the coreclutches 40, 42, and multiplate clutches, are engaged by the spring units A thrusting through the bevel side wheels 36, 38, whilst in Figs. 6 and 7 (not shown) the clutches are engaged by the spring units which act through intermediate annular pressure rings, whereby the side wheels are free of the clutch pre-load.
Patent GB-1056626-A (GB)
Title: Improvements in or relating to cylindrical crossed-field electron discharge tubes
IPC: H01J25/42
Filed: 1965-08-05
Abstract: 1,056,626. Travelling wave tubes. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Aug. 5, 1965 [Aug. 26, 1964], No. 33505/65. Heading H1D. A crossed field travelling wave tube has an electrostatic shield 9 (Fig. 1, not shown), located between a central electron gun structure 5, 6, 7 and a surrounding assembly consisting of a sole electrode 3 and a delay line 2. The shield is arranged to be held at the same potential as the metallic envelope 1. The provision of the shield overcomes spurious oscillations in travelling wave tubes, discontinuities in the frequency bands in backward wave oscillators and sudden variations in the noise spectrum in noise generators.
Patent GB-1306717-A (GB)
Title: Digital multiplying circuit
IPC: G01F15/02
Filed: 1970-04-30
Abstract: 1306717 Multiplying circuits DANIEL INDUSTRIES Inc 30 April 1970 [1 May 1969] 33553/72 Divided out of 1306716 Heading G4H The subject matter is identical to that of Specification 1,306,716 but the claims are directed to the circuitry for digitizing an analogue signal and multiplying the digitized signal by a further digital signal. As described the digitized signal represents the temperature, pressure or oil content of a fluid and the digital signal represents increments of fluid flow.
Patent GB-1276760-A (GB)
Title: Synthetic tufted constructions and method of making same
Inventor: LEWIS JOHN CONNELL JUNIOR
IPC: A46B3/04
Filed: 1970-07-10
Abstract: 1276760 Brushes; mats J C LEWIS Jnr 10 July 1970 [18 March 1970] 33624/70 Headings A4K and A4S [Also in Division D1] In the manufacture of a tufted article, e.g. a brush or mat, comprising tufts 102 of thermoplastics material fused at one end to a filament 104 of polypropylene embedded in a rigid or flexible polyurethane or polyether foam 105, the filament having the tufts fused thereto is coated with the foam pre-mix composition which is foamed and cured about the filament. The brush may be made in the form of a cylinder with the tufts extending outwardly therefrom. The filaments of the tufts may be circular, triangular polygonal, starshaped, X-shaped or Y-shaped in cross-section.
Patent GB-1532238-A (GB)
Title: Turning tool
IPC: B23B27/08
Filed: 1976-07-16
Abstract: 1532238 Cutting tools DIAGRIT GRINDING  CO Ltd 16 July 1976 [12 Aug 1975] 33626/75  Heading B3B A turning tool comprises an elongate holder 10 of circular cross section having a semicircular recess at its end to receive an indexable  insert 17, said recess having a surface 15 perpendicular or substantially perpendicular to the longitudinal axis of the holder and a surface 13 transverse to the said surface 15, and a screwed bore 16 extending from the surface 15 to receive  a clamping screw 18 by which the insert 17 is clamped. The surface 15 may be angled slightly  to provide cutting clearance. The insert has a raised annular collar to engage the surface 15  and a countersink on the opposite side to ac-  commodate the head of the screw 18. The bore  16 may be angled slightly to ensure that the insert is clamped against the surface 13.
Patent GB-1276854-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: FLETCHER HENRY RAYMOND
IPC: B60C9/20
Filed: 1968-07-16
Abstract: 1276854 Pneumatic tyres DUNLOP HOLDINGS Ltd 15 July 1969 [16 July 1968] 33747/68 Heading B7C A cross-ply or radial carcass pneumatic tyre is reinforced by an energy absorbing layer or layers, located externally of the carcass, of steel wire cords in substantially parallel side-by-side relationship, the individual wires in the cords having a diameter no greater than 0À003 inch and preferably less than 0À0016 inch. The cords comprise two yarns folded together with substantially 7¢ turns per inch and having a diameter of substantially 0À038 inch. The layer or layers may form part of a breaker assembly or form a sidewall reinforcement. Specifications 1,276,852, 1,276,853 and 42261/68 (co-pending) are referred to.
Patent GB-415726-A (GB)
Title: Improvements in starting devices for internal combustion engines
IPC: F02M17/30
Filed: 1932-11-29
Abstract: 415,726. Starting internal-combustion engines. ECLIPSE MACHINE CO., Elmira, New York, U.S.A. Nov. 29, 1932, No. 33765. Convention date, Nov. 30, 1931. [Class 38 (iv).] In starting apparatus for internal-combustion engines comprising, e.g. an electromagnetic switch 5 controlling the circuit of the starting motor SM, in order to prevent operation of the starting apparatus during backward rotation of the engine a diaphragm 23 in a chamber connected with the fuel intake system opens a switch 17 in the energizing circuit of the switch 5 when pressure arises in the intake. This circuit cannot close again until after backward rotation has ceased, since the switch 17, on opening, being heated by a circuit through contacts 26, is bent away from the normal position and is not restored till the element cools.
Patent GB-1005383-A (GB)
Title: Improvements in or relating to cavities for optical masers
IPC: H01S3/093
Filed: 1961-09-21
Abstract: 1,005,383. Lasers. WESTERN ELECTRIC CO. Inc. Sept. 21, 1961 [Oct. 25, 1960 (2)], No. 33793/61. Heading H3B. The resonant cavity of a laser comprises a crystal incorporating a negative temperature medium: and having the shape of a regular cylinder or a regular prism. The crystal is polished so tnat its shape is " ideal " within limits of accuracy which are defined. The maximum linear dimension is limited to 10 cms. The stimulated emission is trapped within the crystal by total internal reflection and a standing wave is formed. The energy may escape through an imperfection in the surface. The cavity may be in the form of a sphere, a regular cylinder, or a regular prism. One of the three major dimensions may be of the order of 0À2 to 2 microns or one-half to three wavelengths at the frequency of the emission. The crystal may be a calcium fluoride host doped with rare earths as activators and with cerium as a sensitizer. One example is [0À98 Ca, 0À01 Ce, 0À01 Tb]F 2 . A cubical crystal 31, Fig. 6, is pumped with ultra-violet light from mercury lamps 32 with spherical reflectors 33. Coherent light trapped in the crystal escapes through an imperfection 34. In Fig. 9, the cavity comprises a section 60 of a sphere and is pumped through its plane surfaces. To extract the trapped radiation, a piece of transparent dielectric material b, Fig. 10, is placed close to the spherical surface a. The radiation may be directed by lenses c and mirrors p. The quantity of light extracted depends on the distance between a and b. As light emitted in the central region of a sphere is not trapped, the central part of the cavity may be cut out leaving a ring as shown in Fig. 10, having a spherical outer surface. The surfaces of the cavity may be coated with alkali metals such as Li, Na, K, Rb and Cs which transmit the pumping frequency into the cavity but reflect the lower frequency emitted within the cavity. Specification 1,005,384 is referred to.
Patent GB-447914-A (GB)
Title: Improvements in and relating to umbrellas
IPC: A45B25/06
Filed: 1934-11-27
Abstract: 447,914. Umbrellas. SHARPLESS, W. H., Sherrard Works, Green Street, Forest Gate, London. Nov. 27, 1934, No. 34051. Drawings to Specification. [Class 134] A stop for limiting the travel of the runner when opening the umbrella consists of a thinwalled tube one end of which is beaded over to form an enlargement. The stop may be welded, soldered or brazed on to a metal stick or may be riveted or form a driving fit thereon.
Patent GB-930798-A (GB)
Title: Positioning device for bending dead ends formed from helically preformed elements
IPC: H02G1/02
Filed: 1960-10-05
Abstract: 930,798. Bending. PREFORMED LINE PRODUCTS CO. Oct. 5, 1960 [Feb. 5, 1960], No. 34127/60. Class 83 (4). [Also in Group XXV] Apparatus for positioning a helical band with respect to a pin around which said band is to be bent to form a bight and to dispose the return-bent portions of said bend in opposite phase relationship comprises said pin and a pair of cylinder members laterally spaced from said pin to engage a helical band while the band is in close association with said pin, the cylinder members being so supported as to move in unison to and from the pin. A cable, comprising a number of helical elements 57 twisted together, is bent about a pin 60 to form a loop or dead end as disclosed for example in Specification 817,535, to which reference is made. The cable is positioned relative to the pin 60 by rollers 54a, 54b carried by members 42 on levers 26 pivoted at 24 and weighted at their lower ends 27, the levers 26 being connected by bellcrank means 29 so that displacement of the rollers 54a, 54b is equal and opposite. Alternative means connecting the levers 26 may comprise a cross-member, Fig. 6 (not shown), or an endless belt, Fig. 7 (not shown). The rollers 54a, 54b being at right angles to the pin 60, are at different distances from the pin 60 so as to position the cable so that when it is bent around the pin 60 by a pair of pivotally mounted bending arms 66 actuated by hydraulic jacks, the opposed parts 58a, 58b of the bent cable are in opposite phase relationship so that they may be intertwisted.
Patent GB-943388-A (GB)
Title: Seal rings
IPC: F16D65/28
Filed: 1962-09-06
Abstract: 943,388. Stuffing-box substitutes. GENERAL MOTORS CORPORATION. Sept. 6, 1962 [Sept. 25, 1961], No. 34214/62. Heading F2B. A seal ring 10, particularly for use between the movable and stationary parts of a tiltable jet propulsion nozzle, comprises two annular spaced beads 14 having a helical wrapping or carcass 12 of cord 20 of heat-resistant plastics material forming superposed layers 16, 18, and an elastomer coating 38 impregnating the cord and the beads. The wrapping 12 is bonded to a liner 40 having sealing lips 42 adjacent the beads. Each bead 14 is formed from a continuous cord which is made from spirally-wound smaller cords and has its ends joined together to form an annulus. The carcass 12 may be two ply or any multiple of two plies and may be formed from a single continuous strand or a number of continuous strands positioned sideby-side and helically wound simultaneously. As shown, the carcass is two ply and is formed by first spacing the beads axially and then winding the cord 20 helically around the beads to form the top and bottom layers 16 and 18, the abutting ends 34, 36 of the cord being tied or otherwise secured together. The cord turns and the beads are then impregnated with the elastomer 38, which may be silicone rubber, and finally bonded to the liner 40 which may also be of silicone rubber. The seal is then bent to the shape shown. The liner 40 may be on either or both sides of the carcass or omitted altogether.