baber/WOPTO huggingface dataset:
Patent GB-1392212-A (GB)
Title: Involutely heat-recoverable articles
IPC: B29C61/10
Filed: 1972-03-29
Abstract: 1392212 Metallic sleeves and pipe-joint seals RAYCHEM CORP 29 March 1972 [2 April 1971] 14805/72 Heading B3A [Also in Divisions B2 B5 F2 and H2] An involutely heat-recoverable metal article comprises a laminate of (1) a layer which has been set in an unstable distorted state and which will tend to return to its original form on heating and (2) a layer which, at the recovery temperature of (1), does not recover or recovers to a lesser extent. On heating, the shrinking of the layer (1) is restrained by the layer (2) and the article therefore tends to a spiral configuration. The layers (1) and (2) are preferably polymeric but may be of metal. The article may be recovered around an elongate substrate (e.g. cable, wire, pipe) to form a wrap-around sleeve at cracks or junction points. Preferably the opposed faces of the laminate in the recovered article are bonded together, e.g. by provision of adhesive or by choosing the materials (1) and (2) such that (2) is bondable to (1) under the conditions of heat-recovery by further heating to cause fusion; a second layer (2) may be provided on the face of layer (1) to assist such fusion-bonding. The article may be fixed to a wire or cable splice by providing solder at the point of contact. The portion of the article which contacts the substrate is preferably coated with grease, mastic or room temperature flowable material to enable conformity with surface irregularities in cable splices. In a preferred embodiment, a sealed closure member is formed by providing layer (2) in the form of end portions 10, 11 on opposite faces of layer (1). These portions are subjected to partial recovery to form an S-shaped article as shown in Fig. 12, and the article is folded into tubular form to interlock the curved end portions. The interlocked portion is then heated to cause further recovery in spiral fashion at 13 (Fig. 14), and the main tubular portion is heated to cause recovery radially inwards. Suitable metal layers (1) are alloys as specified in US Specifications 3,012,882 and 3,174,851, e.g. Au-Cd and Ag-Au-Cd alloys, which are obtained in a distorted state by stress relief of material which has been deformed above a certain temperature. Layer (2) may be of metal or polymeric material.
Patent GB-374239-A (GB)
Title: Improvements in tilting pans, autoclaves, digesters and the like
IPC: B01D1/30
Filed: 1931-05-19
Abstract: 374,239. Pipe joints. FRENCH, T. E., 77, Fawe Park Road, Putney, KERN, F. B., 102, Palewell Park, East Sheen, and ALUMINIUM PLANT & VESSEL CO., Ltd., Point Pleasant, Wandsworth, all in London. May 19, 1931, No. 14806. [Class 99 (i).] The trunnions 2 supporting a tilting pan have a foreshortened bearing surface and one at least of them is hollow and is connected to a fluid inlet or outlet connection in the form of a flexible hose 4 which accommodates itself to any tilting movement of the pan. The end of the hose is screwed into the trunnion at a point substantially at the axis of rotation of the trunnion and jointed. The axes of the connecting ends of the hose are angularly disposed to each other, as shown in Fig. 3, so that the hose is bowed and accommodates itself to the tilting without strain. The hose is enclosed between a cover 7 and one leg 6 of the supporting frame that carries the bearing surfaces for the trunnions.
Patent GB-1205736-A (GB)
Title: Purification of transplutonium elements
Inventor: KOEHLY GERARD
IPC: G21C19/46
Filed: 1969-03-20
Abstract: 1,205,736. Separating transplutonium elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 20 March, 1969 [29 March, 1968], No. 14817/69. Heading G6R. An aqueous solution containing transplutonium elements, rare earths, and fission products is adjusted to an acidity greater than IN and fission products other than the rare earth elements are then extracted by contacting the solution with an immiscible organic phase consisting of an organophosphorus acid in a solvent. Suitable organophosphorus acids are diethylhexyl phosphoric acid, dibutyl phosphoric acid, monoethylhexyl phosphoric acid, mono-[(p- 1,1,3,3 - tetramethyl - butyl) phenyl] phosphoric acid, di-n-octyl phosphonic acid, and di-(ethylhexyl) phosphonic acid; the acid may be diluted with dodecane, toluene, or kerosene. In examples the original solution is obtained by dissolving neutron-irradiated Pu-Al alloy or americium 241 in nitric acid, plutonium is extracted with trilauryl amine, aluminium nitrate is added and the acidity adjusted with HNO 3 . After removal of fission products by extraction with diethylhexyl phosphoric acid in dodecane, lithium nitrate is added to the aqueous phase, the pH adjusted to 1 or 1À5, and the actinides and lanthanides extracted with the same organic solvent; the transplutonium elements (Am and Cm) are then separated by means of an aqueous solution containing lithium nitrate and diethylenetriamino - penta - acetic acid. For the second organic extraction, tributyl phosphate, trilaurylamine, or trioctyl phosphine oxide may alternatively be used.
Patent GB-612063-A (GB)
Title: Accessory drill for automatic lathes
IPC: B23B31/02
Filed: 1946-05-17
Abstract: 612,063. Attachments for drilling. BECHLER, A. May 17, 1946, No. 14895. Convention date, March 12. [Class 83 (iii)] A drilling-attachment for lathes has a drill 10 axially adjustable with respect to a spindle 3 by means of a pin 12 clamped between two collars 14 threaded on to the spindle and passing through one of a number of holes 11 in the shank of a drill socket 9 and a slot 13 at one extremity of the spindle which is bored to receive the shank. The collars are recessed on their inner faces to prevent the pin flying out under centrifugal force. A collar 16 clamps the spindle to the shank 9 after adjustment of the pin in the slot 13. The drill is rotated by a pulley 7 and is fed to the workpiece by means of a lever 4 actuated by a cam 6.
Patent GB-1220610-A (GB)
Title: Web transport system
Inventor: THOMAS DEANE STANLEY JR
IPC: G03D3/08
Filed: 1968-03-28
Abstract: 1,220,610. Film processing apparatus. EASTMAN KODAK CO. March 28, 1968 [March 28,1967], No. 14895/68. Addition to 1, 180, 961. Heading G2A. The invention is a modification of the film transport system described and illustrated in the parent Specification in which the upper rollers 20 are constructed so that the hubs are displaceably mounted with respect to the rims. In the present arrangement the lower rollers 22 are also constructed the same way. This is stated to damp out variations in film speed.
Patent GB-1421694-A (GB)
Title: Non-woven fabric and the method of producing thesme
IPC: D04H11/08
Filed: 1974-04-04
Abstract: 1421694 Fibrous fabric VYZKUMNY USTAV PLETARSKY 4 April 1974 [15 May 1973] 14960/74 Heading D1K A non-woven fabric comprises an intermediate elastomeric foam layer to which outer fibrous webs are needled, and anchored by stitch-bonding. Needling is effected from both sides. The webs are raised into a pile by roller raising machines. The fabric may be relaxed by a heat treatment, and may be fire-, static-, or soil-proofed.
Patent GB-1501884-A (GB)
Title: Preparation of n-(chloroaryl)-n',n'-dialkylamidines
IPC: C07C315/04
Filed: 1975-04-11
Abstract: 1501884 A process for the preparation of N - (chloroaryl) - N<SP>1</SP>,N<SP>1</SP> - dialkylamidines HOECHST AG 11 April 1975 [11 April 1974] 14995/75 Heading C2C The invention comprises a process for the preparation of N - (chloroaryl) - N<SP>1</SP>,N<SP>1</SP>- dialkylamidines consisting of reacting in a halogenated hydrocarbon, (i) an acid condensing agent, (ii) an N,N-dialkylamide of formula where R<SP>2</SP> represents a C 1-4  alkyl group or a hydrogen atom and R<SP>3</SP> and R<SP>4</SP> independently represent C 1-8  alkyl and (iii) an amine where R<SP>1</SP> represents a phenyl or naphthyl radical, optionally substituted by one or more substituents selected from unsubstituted or substituted phenyl, naphthyl and C 1-4  alkyl radicals, phenoxy, naphthoxy, C 1-4  alkoxy, phenylsulphonyl, naphthylsulphonyl, C 1-4  alkylsulphonyl, phenylmercapto, naphthylmercapto, C 1-4  alkylmercapto, phenylamino, naphthylamino or C 1-4  alkylamino and chlorinating without prior isolation the reaction product of formula at 15-80 C. and optionally releasing the free amidine by treatment with a base. Reference has been directed by the Comptroller to Specification 1,326,781.
Patent GB-1163352-A (GB)
Title: Improvements in or relating to Methods of Forming Metal Tubing and/or Apparatus Therefor
IPC: B23K11/06
Filed: 1967-04-03
Abstract: 1,163,352. Making tubes; skelping; shearing; welding by pressure. UPRIGHT PRODUCTS Ltd. 3 April, 1967 [4 April, 1966], No. 15049/67. Headings B3A, B3E, B3R and B3W. An apparatus for forming longitudinally welded tube from metal strip 2 comprises initial forming rollers 6 which bend the edges of the strip to the curvature of the tube, a second set of initial forming rollers 12 which shape the strip to tubular form and a final set of rollers 18 which further shape the strip and overlap the edges, the forming rollers being arranged so that the edges of the strip converge leaving a gap therebetween in order that a welding electrode 19 may be inserted for positioning internally of the tube downstream from the rollers 18 to resistance weld the seam The first set of forming rollers 6 preferably comprises a co-operating pair of split rollers (7), (8), Fig. 3 (not shown), which are adjustable for various strip widths. The welding electrode 19 is of copper alloy and mounted on an L-shaped arm 21 with one arm 22 of copper supported on a platform 23 insulated from the apparatus frame 1. An external wheel electrode 19a co-operates with the internal electrode 19 and is adjustably spring biased towards the seam. Each electrode is cooled by a water duct 28, (47), Fig. 8 (not shown). A positioning means is provided before the final forming rollers 18 and comprises an adjustably positioned shoe 29 on a bracket 29a, which shoe has shoulders (30), (31), Fig. 13 (not shown), to direct the edges of the strip one beneath the other before the overlap. A tapered tongue (32) projects downward from the shoe between the edges of the strip. After the welding the tube passes between straightening rollers 20 to a cut-off mechanism (48), Figs. 14, 15 (not shown). The cut-off mechanism comprises a pair of apertures plates (49) and a reciprocating shear blade (51) which moves between the plates. The blade is reciprocated by means of a rod (54) connected to a crank (55) on a shaft (53) arranged to rotate through one revolution when activated.
Patent GB-1086019-A (GB)
Title: Improvements in and relating to a method of grinding disk valves and apparatus for carrying out the method
Inventor: BAKKE THOR ERIK
IPC: B24B15/08
Filed: 1966-04-05
Abstract: 1,086,019. Grinding. BURMEISTER & WAIN'S MASKINOG SKIBSBYGGERI A.S. April 5, 1966 [April 12, 1965], No. 15063/66. Heading B3D. A method of grinding the coacting sealing faces of a disc valve 9 and a valve seat 11 fixed in a valve housing 8, such as for a heavy-duty internal combustion engine, comprises rotating or oscillating the valve member with respect to the seat after removal of the valve spring or springs 18, 19, the valve housing being arranged vertically with the valve disc facing downwardly, and during the grinding process supporting the valve member by an upwardly directed force applied to the member. In apparatus for carrying out the method, the valve housing 8 is secured by bolts (32, Fig. 2) to a table 4 mounted by bolts (6, 7) on a frame consisting of uprights 2 secured to a base 1. A motor 20, which may be pneumatic, hydraulic or electric, is mounted on the base and drives through a reduction gear 21 a universal joint 22 connected by a telescope shaft 23 to a driving member 24 having pins 25 for engaging holes in the valve disc 13. The valve disc is urged into engagement with the seat by a pneumatic device 29 having its rod connected to a member 28 joined to a pair of levers 26 which are mounted on a pivot 27 on the frame and have rollers 30 engaging the driving member 24. A pair of guide columns 35 can be screwed into the valve housing and are interconnected by a beam 36 supporting an hydraulic device 38, 39 on a cross member 37 having pressure pins 40 for engaging the spring cup 16 of the valve. In operation, the valve housing 8 is mounted on the table 4 and the device 29 is extended so that the rollers urge the driving member into engagement with the valve seat. The device 38, 39 is then extended, so that pins 40 compress the valve spring to permit removal of the split conical bushings 17, and is then retracted to relieve the valve springs. Device 29 is then lowered so that abrasive paste or powder may be applied to the face 12 of the valve seat. Thereafter motor 20 is started to rotate or oscillate the valve and device 29 again extended to urge the valve against the seat. The operation may be controlled automatically or manually. The driving member 24 may be replaced by a chuck which grips the circumference of the valve disc or by a friction driving roller. The table 4 is pivotable on the frame by removing one of the bolts (7) to allow tilting of the valve housing for other working or inspection of the valves, stems etc.
Patent GB-1057093-A (GB)
Title: Improvements in or relating to parity checking of binary codes
Inventor: CLARK GORDON ALBERT
IPC: G06F11/10
Filed: 1964-04-13
Abstract: 1,057,093. Transistor switching circuits. PURDY & McINTOSH ELECTRONICS DEVELOPMENTS Ltd. April 13, 1964, No. 15088/64. Heading H3T. [Also in Division G4] Parity checking equipment comprises a train of serially-connected signal-inverter stages each incorporating a switch which determines whether the stage is to operate as an inverter or as an input-follower. Fig. 1 shows a system for indicating incorrect operation of a tape punch for producing coded tape for the control of industrial processes, computers or printing machines and comprises a plurality of stages IV7 ... IV1 each of which either inverts its input signal, when the associated punch-operated switch C7 . . . C1 is closed or transmits the signal unchanged when the associated switch is open. Each word is coded so that it contains an odd number of binary 1 signals so that, when the appropriate punches have operated correctly a negative 1 signal will be received by the checking stage CS. A time delay circuit (see Fig. 2) controlled by the late-operating feed hole punch switch FD, is arranged to indicate correct and/or incorrect operation in dependence on the signal received by the checking stage CS. A parity switch PS is provided to enable the system to operate with codes having an even number of binary 1 signals. Transistor switching circuits.-Each inverter stage comprises a pair of series-connected transistors TR71, TR72. When the appropriate punch-operated switch C7 is open, transistor TR72 is non-conductive and the base/collector diode of TR71 passes signals from the base to the junction of diode D72 and resistor LR3 unchanged. When switch C7 is closed, however, transistor TR72 is bottomed so that TR71 inverts the signal. Capacitor CP charges negatively via any of the switches C7 . . . C1 and diodes such as D73, so as to turn on transistor RTR energizing alarm relay FR in the event of either the wrong signal being fed to the base of transistor FTR or of the late-operating feed hole punch switch FD failing to close. Under correctly operating conditions, capacitor CP would be discharged by transistor CTR, controlled by switch FD before it charges sufficiently to turn on the alarm transistor RTR.
Patent GB-1339110-A (GB)
Title: Method of making precision conductive mesh patterns
IPC: C25D1/08
Filed: 1972-03-30
Abstract: 1339110 Electroforming mesh DYNAMICS RESEARCH CORP 30 March 1972 [1 April 1971] 15130/72 Heading C7B A precision conductive mesh pattern, for image tubes and optical systems providing controlled energy transmission, is formed by: forming a conductive master mesh pattern 10 with surrounding border 14 in electrical connection, e.g. of Cr, on the surface of a non-conductive light transmissive substrate 12 e.g. of glass, preferably by evaporation of Cr on to the surface through a stencil; depositing a layer of photoresist 16 over the master pattern, exposing from opposite side of the substrate and developing to provide a pattern of unexposed photo-resist 18 on and in exact registration with the master pattern; depositing a layer 20 of silicon monoxide over the master pattern and photo-resist 18; removing the photo-resist 18 and overlying silicon monoxide layer e.g. with an acetone bath to form a silicon monoxide matrix 22 within interstices of the master pattern; electroplating a conductive pattern 34 e.g. of Ni on to the master pattern within matrix 22 and peeling off the plated pattern.
Patent GB-787675-A (GB)
Title: Improvements in hydraulic lifting jacks
IPC: B66F3/42
Filed: 1955-05-26
Abstract: 787,675. Reciprocating pumps. LAKE & ELLIOT, Ltd., and BROOKES, W. April 24, 1956 [May 26, 1955], No. 15197/55. Class 102(1). [Also in Group XXX] In a hydraulic lifting jack of the type in which an operating lever actuates a plunger or plungers to raise the ram of the jack, the lever being also arranged to act on the rod of a release valve to allow the ram to be lowered, and the ram extends from a reservoir casing containing the plunger or plungers and the release valve rod, the plunger or each plunger is slidable in a bore in the reservoir casing and has a seal closing the clearance between the plunger and the bore, and also a controlled leakage byepass for the seal. In the embodiment shown in Fig. 2, the plunger 2, reciprocated in a bore 2A by a lever 1 fixed on a shaft 1A movable by an external handle (not shown), is provided with a rubber ring seal 7 in a groove 7A, and is drilled with a passage 5 leading to a port 6 above the seal. In the passage is a close-fitting pin 8 having a small flat 8A through which fluid passes from the lower end of the bore 2A to the port 6 and thence to the reservoir by way of the usual leakage clearance between the plunger and its bore, allowing the lever 1 to be depressed sufficiently for its projection 1B to actuate the release valve rod 4. The bye-pass passage may be lengthened by replacing the pin by a threaded plug, the crests of the threads of the plug or of the passage being slightly reduced to form a helical leakage path to the port 6. Fig. 4 shows an embodiment of this latter arrangement in which the threaded plug 9A is formed with a conical head 9B, the amount of leak being controlled by rotating the plug slightly. In another embodiment, Fig. 5 (not shown), the plug has a head which engages in a conical recess on the base of the plunger 2 to control the leak. In a further embodiment, Fig. 6, for very high pressures, the threaded plug 9 has a neck 12 for seating the seal 11 of hard packing, and a deep slot 13A which provides for rotating the plug and allows the fluid to reach the helical leakage path. Fig. 8 shows the application to a dual pump type of jack in which the plungers 20 are operated by a rocker arm 22, and a cam 25 is brought into line with the release valve rod 26, when required, by an endwise movement of the rocker arm. The plungers are held against the rocker arm by springs 21, and a seal 27 with a ferrule 27A is provided between each plunger and spring. The necessary leakage occurs between the upper side of the seal and the lower face of the plunger, via the passage 28.
Patent GB-1415774-A (GB)
Title: Polyester production
IPC: B01J3/00
Filed: 1973-03-29
Abstract: 1415774 Spray condensers KURARAY CO Ltd 29 March 1973 [24 April 1972] 15256/73 Heading B1B [Also in Division C3] In a process for preparing linear polyesters or copolyesters by polycondensation in a reactor 1 under reduced pressure, the reduced pressure is maintained by a first ejector pump 2 connected between the reactor and a first condenser 3, the latter being connected to a second ejector pump 4 which is in turn connected to a second condenser which is a multi-jet condenser 10, the operating fluid in the two ejector pumps and the two condensers being a polyol. Preferably the operating fluid is the same polyol as is used in the polyester preparation e.g. in the case of polyethylene glycol terephthalate, ethylene glycol. An example describes the polymerisation of bis-#- hydroxethyl terephthalate.
Patent GB-852318-A (GB)
Title: Improvements in or relating to tuyere holding devices
IPC: C21C5/48
Filed: 1959-05-05
Abstract: 852,318. Converter bottoms. KLOCKNER-HUTTENWERK HASPE A.G. May 5. 1959 [May 5, 1958], No. 15429/59. Class 72 A tuyere block for a converter bottom, Fig. 2, or a converter bottom with tuyeres, Fig. 4. is formed by shaping a mixture of an acid refractory material and tar round the copper tuyere tubes 3 by ramming, or pressing or by a vibrating device and firing all the blocks at a temperature of 500‹-750‹C. so that the tar forms a coke skeleton within the block. 5-10% by weight of tar at a temperature above 80‹C. is mixed with burnt fireclay, luting sand and/or clay. Several tuyere blocks may be embedded in a matrix of ganister to form the converter bottom or a bottom may be formed from a matrix of chemotte and tar 4 with a base plate 9.
Patent GB-150672-A (GB)
Title: Improved crank shaft for multi-cylinder engines
IPC: F16C3/12
Filed: 1920-06-08
Abstract: 150,672. Oesterreichische Waffenfabriks-Ges. Sept. 4, 1919, [Convention date]. Crank-shafts. - A crank-shaft for multicylinder engines is built up of similar parts secured together by flanges, and each pair of flanges forms a crank web and supports a ball bearing. Each unit comprises a single crank, Fig. 1, or a pair of cranks, Fig. 3.
Patent GB-637787-A (GB)
Title: Improvements in vapour generators
IPC: F22B37/30
Filed: 1946-05-22
Abstract: 637,787. Promoting circulation in steam &c. boilers. FOSTER WHEELER, Ltd. May 22, 1946, No. 15514. Convention date, May 24, 1945. [Class 123(ii)] In a steam &c. boiler the, or each downcomer 12, Fig. 3, leading from the upper steam-and-water drum of the boiler, has an enlarged portion 14 locating a perforated tubular body member 16 which effects separation of steam and water passing through the downcomer and is provided with a vent pipe 18 communicating with the steam space of the said drum. A helical vane 15, adapted to impart a whirling motion to the mixture entering the downcomer, is preferably mounted upon the member 16. In a modification (not .shown) the several downcomers are connected to the enlarged head of a common downcomer in which the body member 16 is disposed, the mixture from the former downcomers entering said head tangentially thereto.
Patent GB-1132954-A (GB)
Title: Improvements in and relating to anti-vibration mounting elements
Inventor: GALLOWAY PETER
IPC: F16F1/373
Filed: 1966-04-07
Abstract: 1,132,954. Resilient mountings. GEORGE ANGUS & CO. Ltd. 1 May, 1967 [7 April, 1966], No. 15538/66. Heading F2S. An antivibration mounting comprising a generally cylindrical cushion of resilient material made of micro-cellular polyurethane and of circular cross-sectional outline with variation in diameter along the cylindrical axis has, nearer one end than the other, an outer peripheral groove 3 which is deeper than any other circumferential groove which the cushion might have and which is adapted for snap-in engagement with the margin of a hole in a mounting member 4, the cushion having a uniform axial bore 2 or, a central axial recess in one or both ends, and the two end portions, extending respectively from the groove 4, having relatively different axial load/deflection characteristics. The two end portions can be made of different density or cellular structure. The diameter of the body can be reduced towards its ends by arcuate or rectilinear tapering, Figs. 2, 4, not shown. In a modification, Fig. 3, not shown, the body is corrugated at (5).