baber/WOPTO huggingface dataset:
Patent GB-1037725-A (GB)
Title: Fluid treatment
IPC: A23C9/144
Filed: 1964-12-07
Abstract: <PICT:1037725/C6-C7/1> Ions are removed from solutions in two electro-dialysis stages, one a stack of cationic permeable membranes defining fluid compartments having an acid solution adjacent each compartment through which the solution to be de-ionized flows, and second a similar stack having anionic permeable membranes forming compartments adjacent an alkali solution. The acid and alkali stages may be reversed in accordance with the solution treated, and other treatment effected between the two stages. For example instant tea powder is made by extracting tea leaves with hot water at 160 DEG F., and passing the extract through a dialysis cell of the alkali type, using dilute KOH. Anions contained in the tea are removed with KOH from a pipe 15, and the treated tea flows through a pipe 17 when it is treated with oxygen or a little H2O2 which forms a soluble tannin-caffeine complex. The tea and oxidized complex are then passed through a dialysis cell of the acid type through a pipe 18. The tea now at pH5 is finally concentrated and dried. Tea made from the entirely soluble powder is free of salts and forms a clear solution. The current applied to the electrodes may be periodically reversed to prevent deposition of solids on the membranes. The process may be applied to removing salt from whey, or treating sugar solutions, milk, molasses, fruit juices, wine, sewage, and other liquids, when the two treatment stages may be reversed.
Patent GB-1075018-A (GB)
Title: Improvements in or relating to logic systems
Inventor: BEDFORD ROGER JOHN
IPC: H03K17/24
Filed: 1964-12-07
Abstract: 1,075,018. Transistor bi-stable circuits. EXPRESS LIFT CO. Ltd. Nov. 30, 1965 [Dec. 7, 1964], No. 49667/64. Heading H3T. [Also in Division B8] A bi-stable storage circuit comprises means for ensuring that a static bi-stable circuit is reset to its previous state after failure of the supply, including magnetic means for storing the state, means forreturning the bi-stable circuit to a preferred state on restoration of the supply and means for changing the state if the stored state differs from the preferred state. The bi-stable circuit 1 is switched between its states by inputs at 2 and 3 and sets a storage core 7 via a gating amplifier 6 in accordance with its state. After failure and restoration of the supply the bi-stable circuit returns to a preferred state but the core is not correspondingly reset as the gating amplifier is disabled by a delay device 10. The delay device 10 also opens a gate 11 and after a delay controlled by device 9 sufficient to allow the bi-stable circuit to reach its preferred state a read-out pulse is applied to memory core 7 and if the core is in the state corresponding to the non-preferred state of the bi-stable circuit a pulse is applied through gate 11 to input terminal 2 to change the state. The delay circuit 10 now opens gating amplifier 6 to permit the core to follow the bi-stable circuit, and closes gate 11. The bi-stable circuit 1 (Fig. 2, not shown) may be a conventional cross-coupled transistor pair with a capacitor C1 across one cross-coupling resistor to determine the preferred state. The gating amplifier (Fig 3, not shown) may comprise two transistor amplifiers (T3, T4 and T5, T6) respectively feeding "set" and "reset" windings on the core and each having an inhibit input from delay 10. The delay circuits 9 and 10 (Fig. 4, not shown) may each be a cross-coupled transistor circuit having a capacitor (C2) across one coupling resistor so that when the supply is first restored the two transistors take up one conductive condition until the capacitor changes, whereupon the conductive condition reverses. The pulse circuit 8 may be as shown in Fig. 5. An input pulse cuts off T9 allowing the base of T10 to fall to clamping level V2. The emitter voltage falls correspondingly so rendering conductive a diode S2 whereby a resistor R6 is effectively connected in parallel with emitter resistor R5 allowing the transistor current to rise to a value sufficient to switch -core 7. When input capacitor C3 has charged, T9 again becomes conductive to reduce the current in T10 to the lesser value determined by R5 alone. The gate 11 may be as shown in Fig. 6. Transistor T11 is normally off so that T12 is so heavily biased on that pulses produced in line CC3 due to switching of the core do not alter its conduction. However, during the resetdelay period determined by delay unit 10 T11 is saturated and the base of T12 is so biased that pulses in CC1 switch T12 off and produce output pulses at its collector. The pulse and delay circuits may be common to a number of bi-stable circuits.
Patent GB-1350120-A (GB)
Title: Actuating device for underwater appliance or vehicles
IPC: B63H19/00
Filed: 1971-10-27
Abstract: 1350120 Underwater hydraulic actuators DEUTSCHE BABCOCK & WILCOX AG 27 Oct 1971 [22 Dec 1970] 49925/71 Heading B7A [Also in Division F1] An actuator for a submerged appliance or vehicle is operated by the head of water in which it is immersed. The actuator comprises two cylinders 10, 15 in which reciprocate pistons 12, 17 having actuating rods 13, 18 for moving an element 14. A valve 1 controls admission of water to the cylinders 10, 15, and has a spool piston 3 movable by gears 6, 7 which engage a rack 5 attached to a rod 4 fixed to the piston 3. The gears are operated when a wheel 9 of the appliance moves along the sea floor. The valve 1 has an inlet 2 communicating with the surrounding water and outlets 11, 20, 16 communicating with respective sides of the cylinder 10 and with one side of cylinder 15 respectively. When wheel 9 moves, rack 5 pulls spool piston 3 to the left thus enabling sea water to flow from inlet 2 to the outlet passage 11 and thus to cylinder 10 to move piston 12 leftwards and thus move element 14 to the dotted position. Further movement of spool 3 communicates inlet 2 with the left hand side of cylinder 10 so that the pressures therein are equalized. The final movement of spool 3 opens passage 16 to move piston 17 to the right, thus restoring element 14 to its original position.
Patent GB-1357970-A (GB)
Title: Method of making split metal packing rings
IPC: B23P15/06
Filed: 1971-10-28
Abstract: 1357970 Split metal rings; forging-dies G M ZABOLOTSKY V M RAKOVSKY S A SHUSTER and M V BOLDYREV 28 Oct 1971 50120/71 Headings B3A and B3H [Also in Division F2] A method of making split metal packing rings 10 wherein their inner cylindrical surface serves as a sealing surface comprises heat treating a split ring blank 11, straining the ring blank by reducing the dimensions of the ring between its top and bottom faces over a region of the blank with minimum straining near the split and maximum straining opposite the split, and machining the top and bottom surfaces and outer and inner cylindrical surfaces of the ring. A split metal ring where its outer cylindrical surface serves as a sealing surface, e.g. a piston ring, is strained prior to a stress-relieving heat treatment, the machining operation then following. A blank 11 is placed in a die 12 whose punch 14 and bottom plate 15 have planar working surfaces so as to reduce a region 13 such that the compressive strain a 1  is constant but the width h 1  varies to produce varying compressive stresses around the ring periphery and hence give it a slight eccentricity. The blank is then heat treated and machined, using inner and outer mandrels, to a predetermined size. Alternatively, both types of split ring may be formed using tapered and bevelled dies, Figs. 9, 11, 12, 14 (not shown). The rings formed by tapered dies have a compressed region of both variable width (h 2 ) and strain value (a 2 ), Fig. 10 (not shown), whereas the bevelled dies form rings where the width h is constant, Figs. 13, 15 (not shown).
Patent GB-1097100-A (GB)
Title: Integrator-controlled switch means
Inventor: MASON GUY
IPC: G01R19/165
Filed: 1965-11-25
Abstract: In an electro-chemical process for the removal of burrs from machined metal articles such as gear-wheels, the process current is initiated by a first electromagnetic relay and terminated by a second electromagnetic relay after a period (determined by a transistorized integrating/switching circuit, see Division H3) so that the integral of current supplied has a desired value.
Patent GB-1074942-A (GB)
Title: Method and apparatus for completing wells
IPC: E21B33/04
Filed: 1963-12-23
Abstract: 1,074,942 Oil well completion equipment. GRAY TOOL CO. Dec. 23. 1963 [Jan. 7, 1963], No. 50716/63. Heading E1F. Rotary table 30 has a central passage 32 through which a casing head 58 may be passed to rest on stationary drive pipe 10, so that the casing head 58 may be positioned between successive drilling operations without removing the rotary table. The mud riser 24 may also remain in place while casing head 58 is positioned. Support plate 56, which may be of two part hinged type or welded to casing head 58, supports head 58 and rests on surface 20 of supporting hub 12. Passages 22 allow mud to escape when cement is injected down pipe 61 and casing 54 (Fig. 4, not shown). Prior to cementing, casing 54, casing head 58 and lowering bushing 60 screwed thereto in pressure tight manner (Figs. 3, 6 - 8, not shown) are positioned, and while cement is setting bushing 60 and mud riser 24 are removed and other equipment, not shown, applied to head 58 for further drilling under pressure, rotary table 30 being refitted with driving bushings (38, 44) (Fig. 1, not shown) to engage the kelly. On completion of drilling (Fig. 5 not shown) a second casing (137) is sealed and supported in head 58 and a tubing head (130) fitted. The diameter of head 58 is set by outlet bosses 88, 90 (Fig. 6, not shown) which receive plugs, but alternatively bushings 60 may extend to cover the outlets inside head 58 during cementing, and bosses are detachable (Fig. 9, not shown).
Patent GB-1169965-A (GB)
Title: Improvements in or relating to Air-Conditioning Plants for Motor Vehicles
IPC: B60H1/00
Filed: 1967-11-08
Abstract: 1,169,965. Refrigerating and heating vehicles; tubular heat exchangers. MECANO-BUNDY G.m.b.H. 8 Nov., 1967 [21 Dec., 1966], No. 50732/67. Headings F4H and F4S. A reversible refrigeration system for heating or cooling the interior of a vehicle comprises a compressor 1, a heat exchanger 11 located within the passenger compartment and a heat exchanger 5 external to said compartment, heat exchanger 5 having two coolant flow passages 5a, 5b therein. For cooling, valves 3, 4, 10 and 14 are set so that refrigerant from the compressor passes through lines 2, 2a, at least one of the passages 5a, 5b where it is condensed, line 6, expansion valve 9, heat exchanger 11 where it is evaporated, and lines 12 and 13 to the compressor inlet. For heating, the valves are set as shown in Fig. 2 so that refrigerant from the compressor passes through line 12, heat exchanger 11 where it gives up heat to the compartment but is not condensed, line 15, passage 5a of heat exchanger 5 where it is condensed, line 16, expansion valve 19, passage 5b where it evaporates while abstracting heat from the refrigerant in passage, 5a, and line 20 to the compressor inlet. Expansion valve 19 may be omitted and passage 5b formed in part as a capillary. The arrangement of passages 5a, 5b ensures that heat exchanger 5 does not ice up at low ambient temperatures. Heat exchanger 5 may be constructed as shown in Fig. 4, the passages 5a, 5b above being provided by two serpentine coils 22, 23 arranged side by side. Three-way valves 24, 25 at opposite ends of the exchanger may be set so that refrigerant flows through the coils either in parallel during cooling operation (Fig. 3, not shown) or in countercurrent, as shown, during heating operation. Coils 22, 23 have a helical wire soldered thereto.
Patent GB-1125768-A (GB)
Title: Improvements relating to window, door and similar frame assemblies for building structures
Inventor: ALLAN KEITH STUART
IPC: E06B3/44
Filed: 1964-12-15
Abstract: 1,125,768. Securing windows &c. frames in openings PERCY LANE Ltd. 15 March, 1966 [15 Dec., 1964], No. 50940/64. Heading E1J. An extruded aluminium frame 22 is secured in a frame receiving opening in a structure by means of lugs 26 each of which has diverging flanges 28 which engage on the inner sides of two converging flanges 20 at the mouth of a channel 21 in the frame member 22, so as to form a dove-tail type of joint, the lug having an attachment portion 29 which may have one or more holes for fixing screws &c. The lug may be located by sliding the lug lengthwise of the bar member 22 or the dove-tail formation of the lug may be slightly resilient so as to open and close sufficiently to enable the lug to snap into engagement with the flanges 20 of the bar which also may be slightly resilient. The invention is described as applied to the hollow metal main frame of a double hung sliding sash window.
Patent GB-1113447-A (GB)
Title: Electrical signal translating apparatus
Inventor: GUNN JOHN BATTISCOMBE
IPC: H03K3/02
Filed: 1965-05-21
Abstract: 1,113,447. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 21 May, 1965 [12 June, 1964], No. 51051/67. Divided out of 1,113,442. Addition to 1,070,261. Heading H1K. The subject matter is identical with that of Specification 1,113,442 but the claims relate to an apparatus in which means such as a pick-off electrode are used to detect the presence of a high field travelling domain in a semi-conductor body.
Patent GB-1304760-A (GB)
IPC: B65D19/00
Filed: 1970-10-27
Abstract: 1304760 Load handling pallets STANDARD OIL CO 27 Oct 1970 [30 Oct 1969] 51058/70 Heading B8H A pallet made of foam plastics comprises top and bottom members spaced apart by corner supports 23-26 and side supports 38-41, located at or adjacent the periphery of the pallet, each support having a substantially planar surface arranged at an angle of between 30 and 75 degrees to the periphery of the pallet to facilitate the insertion of fork arms therebetween. Alternative shapes for a centre support and for the corner and side supports are described, Figs. 3, 4, 5 (not shown).
Patent GB-1446527-A (GB)
Title: Damped josephson junction memory cell
IPC: H01L39/22
Filed: 1974-11-27
Abstract: 1446527 Superconductive loop memory INTERNATIONAL BUSINESS MACHINES CORP 27 Nov 1974 [28 Dec 1973] 51366/74 Heading H3X A memory cell, which comprises at least one Josephson device in a superconductive loop and has an equivalent circuit comprising a parallel combination of a resistor R J , a capacitor C, and an inductance L such that R J >¢L/C, has a resistive loop inductively coupled to the superconductive loop to provide an effective equivalent loop resistance which is equal to, or less than ¢#L/C and is necessary to achieve a desired damping. The resistive loop which is of non-superconductive material may be between the ground plane and the superconductive loop, or on the side of the loop remote from the ground plane. The loops may, or may not be insulated one from the other and the planes may be parallel. Resistance values which are exemplified may be achieved by material selection or by loop geometry design.
Patent GB-1455022-A (GB)
Title: Pressure control and unloader valve
IPC: F04B43/02
Filed: 1973-11-06
Abstract: 1455022 Valves WANNER ENG Inc 6 Nov 1973 51383/73 Heading F2V In a reciprocating diaphragm pump a pressure control and unloader valve has a check valve formed by a spring-loaded valve member 117 and a movable seat 104 disposed between a pressure control chamber 94 and a discharge chamber 18, and an unloader valve 26 formed by an adjustably biased closure member 96 disposed between the control chamber 94 and the suction chamber 88. The arrangement is such that the unloader valve opens if the pressure in chamber 94 rises above a predetermined value or if a pressure wave formed in the discharge chamber as a result of a sudden shut-off at the discharge end is sufficient to overcome the spring bias 95. In the latter case the valve member 117 closes and then the valve member and seat move as a unit to open the unloader valve. The pump has three piston assemblies each formed by a piston 48 which is reciprocated by a cam plate (21) on an electric motor driven shaft (13). Bronze feet 54, 58 are disposed between the plate (21) and the piston which feet rock on their hemi-spherical end surfaces during reciprocation. Fluid in chamber 61 between the piston and a diaphragm assembly 41 causes the latter to reciprocate to pump fluid from chamber 88 to chamber 94 via suction and discharge valves 40, 39. Leakage of fluid from chamber 61 past piston 48 is made up from chamber (17) via spring-loaded check valve 62. In modifications the plunger 70 and spring 75 may be replaced by a spring (121) below the diaphragm assembly and the valve 62 may be provided in the piston.
Patent GB-1188079-A (GB)
Title: Improvements in or relating to Cutting Torches
Inventor: CLUCAS REGINALD
IPC: E21B7/15
Filed: 1968-10-30
Abstract: 1,188,079. Oxygen cutting lances. R. CLUCAS. 10 Dec., 1968 [30 Oct., 1968], No. 51404/68. Heading B3R. [Also in Division F4] A flexible oxygen cutting lance comprises a plurality of multi-strand steel wire cores 1, which form a hollow core, e.g. a crane cable with the central core removed, and are disposed in an outer plastics sheath 2, e.g. of nylon, and, in use, oxygen is supplied through the hollow 3 of the core and an electric current of about 160 amps is supplied to the cores 1. The lance is suitable for metal cutting, may be used under water, and may be very long. An end fitting comprises a copper tube 4 forced into the hollow 3 and fast with a metal sleeve 5 clamped to the cores 1. An electric terminal 6 and an oxygen supply member 7 are provided on sleeve 5 and tube 4 respectively.
Patent GB-1477824-A (GB)
Title: Flameproofed regenerated cellulose
IPC: D01F2/08
Filed: 1975-02-14
Abstract: 1477824 Flame-proofed regenerated cellulose SANDOZ Ltd 14 Feb 1975 [18 Feb 1974 20 June 1974] 51411/76 Divided out of 1475053 Heading C3F Regenerated cellulose contains as a flameproofing agent a compound of general formula wherein R 1  and R 2  together form a group in which each Z is, independently hydrogen or C 1 -C 3  alkyl and R 3  is a group wherein R 4  is hydrogen or C 1 -C 4  alkyl and R 5  is C 1 -C 12  alkyl, cyclohexyl, benzyl, phenyl or phenyl substituted by 1 bromine atom, 1 to 3 chlorine atoms, 1 to 3 C 1 -C 4  alkyd and/or 1 to 3 C 1 -C 4  alkoxy groups, having 1-3 substituents and up to 4 carbon atoms in the aggregate of the substituents, or R 4  together with R 5  and the nitrogen atom to which they are bound form a 5- or 6-membered saturated heterocycle containing 1 or 2 heteroatoms or R 3  is a group in which R 6  is either a group NH-R 7 -NH wherein R 7  is a C 2 -C 10  alkylene or phenylene or a group with the proviso that when any R 4  is C 3  or C 4  alkyl then R 5  of the same amine is alkyl. The compounds are added to unregenerated cellulose, usually viscose, which is then regenerated. A further flame-proofing agent, preferably of formula may be used, wherein Y is O or S in which R 10  is cyclohexyl phenyl or substituted phenyl and R 20  substituted amino.
Patent GB-1438995-A (GB)
Title: Corona discharge electrode
IPC: H05F3/04
Filed: 1973-11-06
Abstract: 1438995 Corona charging apparatus INTERNATIONAL BUSINESS MACHINES CORP 6 Nov 1973 [26 Dec 1972] 51493/73 Heading H1X An electrode for producing a corona discharge comprises an inner metallic portion of Ta, Nb, Zr, Hf, Bi, W, or Sb or a combination of said metals, the said portion being surrounded by an outer coating of an oxide of the metallic portion material. The coating may be formed by oxidizing the inner portion, e.g. by anodizing. The inner portion may be a wire of the metal, or may be a core wire, e.g. of steel, coated with the metal. A plurality of the electrodes may be assembled into a cage-like structure (Fig. 3, not shown). The electrode is "self-healing", i.e. if a crack should occur in the coating, the exposed metal is oxidized by the discharge, and fills the crack.
Patent GB-1526509-A (GB)
Title: Axial flow gas cleaning device
IPC: B04C3/06
Filed: 1976-12-10
Abstract: 1526509 Axial flow centrifugal separator FACET ENTERPRISES INC 10 Dec 1976 [12 Dec 1975] 51725/76 Heading B2P A device for separating solid contaminants from a relatively high velocity, axially flowing gas stream comprises a hollow casing 2, a deflector 22 axially supported within the casing and a plurality of vanes 34 circumferentially arranged around the deflector for imparting a swirl to the gas stream passing through the vanes, the deflector being formed in relation to the casing for rapidly decelerating the gas stream and for deflecting the contaminants upon impact, towards the inside wall 4A of the casing prior to the gas stream passing through the vanes 34, and for further deflecting the contaminants towards the inside wall 8A of the casing and for rapidly contracting the gas stream subsequent to the gas stream passing through the vanes, and the casing 2 including a first passageway 6 for receiving the contaminants-laden gas stream into the casing, a second passageway 16 for carrying relatively clean gas external to the casing and a third passageway 18 for carrying the deflected contaminants external to the casing. A -first portion of the deflector 24 upstream of the vanes 34 tapers at an angle A, e.g. 10‹, and is parallel to a tapered wall portion 4A of the casing. A second portion downstream of the vanes tapers at a steeper angle B, e.g. 15‹ and the downstream end terminates in a cone having an apex angle E, e.g. of 100‹. The vanes 34 are carried by a rim 132 secured in a groove 36 in the casing wall and are disposed at an angle, e.g. of 30‹, to the axis of the deflector.
Patent GB-1442230-A (GB)
Title: Radial seal for the piston of a rotary machine
IPC: F01C19/02
Filed: 1974-11-29
Abstract: 1442230 Rotary positive-displacement fluid-machines FORD MOTOR CO Ltd 29 Nov 1974 [3 Dec 1973] 51920/74 Heading F1F In a Wankel-type machine such as an I.C. engine, each apex seal 10 is raked towards the chamber A on its trailing side and is biased towards the housing 16 by gas-pressure transmitted from the adjacent chambers A, B through passageways 36, 38 in the rotor 14, by-passing of the seal being prevented by a valve 28, which subjects most of the underside of the seal to the highest pressure in the said chambers. The seal may have a generally U-shaped profile in cross-section and a ledge 26 to broaden its rubbing edge 24, and may be also biased by compression coil, or leaf, springs 40. The valve may comprise a vane 30 secured to a pivotpin 32.