baber/WOPTO huggingface dataset:
Patent GB-1335849-A (GB)
Title: Surgical drainage apparatus
IPC: A61M1/00
Filed: 1970-10-30
Abstract: 1335849 Pressure gauges; measuring fluid. flow DEKNATEL Inc 30 Oct 1970 [5 Oct 1970] 51777/70 Headings G1L and G1R [Also in Division A5] Surgical drainage apparatus comprises a collection chamber 11 having an inlet port 14, for communication with a body cavity to be drained, and a seal chamber 12 communicating with the collection chamber 11 and having an outlet 54, a valve 37 being so disposed between the chambers 11, 12 that it closes in response to a pressure differential to prevent backflow of fluids into the cavity. The seal chamber 12 comprising a U- tube containing water has, in the limb 12b adjacent the collection chamber 11, a reservoir 35 for receiving water which may rise in the limb due to excessive reduced pressure in the collection chamber a cylindrical valve member 45 rising with the water to close an aperture 41 to prevent back flow from the seal chamber to the collection chamber. In open position, the valve member 45 is supported on the base (39) Fig. 3 (not shown) of a chamber (38) near the top of the limb 12b. In use of the device, the seal chamber 12 is connected to a vacuum source so that the body cavity is drained into the collection chamber and the water seal enters one limb 12a of the seal chamber so that gases drawn from the cavity bubble through the water seal to the outlet 54. An air flow indicator 46 in the seal chamber comprises a sloping duct 49, extending from the first limb 12b, from which gas passes into a chamber (52) Figs. 5 to 7 (not shown) and thence according to its rate of flow to one or more of a series of holes (51a to 51i) each of which communicates by a vertical duct with the second limb 12a, the rate of flow being indicated by the hole or holes selected by the through-flowing gas. A water manometer 13 attached to the outlet 54 comprises a limb 13a communicating with atmosphere and a limb divided vertically into two sections 13b, 13c so that water in one section 13c is relatively undisturbed for measuring purposes as bubbles pass through the other section 13b. A valve similar to the valve 37 may be provided between the manometer and atmosphere to prevent escape of water if the pressure in the device becomes excessive. The pressure in the device may be regulated by the manometer by selecting the amount of water it contains, excessive subatmospheric pressure in the device being relieved by displacement of water into the sections 13b, 13c so that atmospheric air can bubble through it into the seal chamber 1 and the collection chamber 11 until the desired pressure is reached. The manometer has an air flow indicator 57 similar to that 46 provided in the seal chamber.
Patent GB-1131247-A (GB)
Title: Doffing and replacing bobbin tubes on textile machinery
IPC: D01H9/00
Filed: 1965-12-07
Abstract: 1,131,247. Doffing and donning. ZINSER TEXTILMASCHINEN G.m.b.H. 7 Dec., 1965 [19 Dec., 1964; 23 Dec., 1964], No. 51785/65. Heading DID. Doffing and donning apparatus comprises gripping means 55 which can be moved to grip the inside of the upper end of a full bobbin tube 58, remove the full bobbin from a spindle; place it in a bobbin receiving means, take up an empty tube and place it on the empty spindle. In Fig. 1 in which the two sides of the machine show separate embodiments, a gripping means 55 is provided for each spindle on a member 54 running along the machine (see also Fig. 25, not shown) and carried by members 40 and 40' movable up and down guide rods 24 and 24'. Member 40 is vertically moved by a chain 42 driven from a shaft 21 while member 40' is driven by its threaded engagement with rod 24' which is threaded and driven from a shaft 21'. Rods 24, 24' are mounted to be pivotable about shafts 21. 21' and can be so pivoted by a hydraulic device 25, 26 or an eccentric and forked lever arrangement 35, 23'. Operation When doffing is initiated gripping means 55, by suitable movement of member 40, 40' and by suitable pivoting of rods 24, 24', are moved to engage the full tubes. These are removed and lowered into short receiving spindles (61') (Fig. 25, not shown) mounted on a conveyor 60. The conveyor is then moved through half a spindle spacing so that empty tubes 58 mounted on short spindles 61 on conveyor 60 are brought into line with the gripping means 55. The gripping means then take up the tubes, place them on the spindles and then return to their rest position.
Patent GB-1528495-A (GB)
Title: Transferable filament-containing adhesive layer
IPC: C09J7/10
Filed: 1975-12-18
Abstract: The transferable adhesive layer, which can be wound up into rolls using an intermediate layer impregnated so as to be adhesive-repellent, comprises a pressure-sensitive adhesive composition preferably having an adhesive power to steel of 200 to 1,500 g per cm of adhesive film width, in which an unwoven layer of continuous textile filament yarns aligned rectilinearly in the longitudinal direction is fully embedded. The number of threads is expediently from 10 to 40 per cm of adhesive film width in a linear density range from 30 to 400 dtex. The adhesive layer can be removed again from adhesive surfaces without leaving residue by simple peeling.
Patent GB-1393538-A (GB)
Title: Electrical device
IPC: H01F38/10
Filed: 1971-11-10
Abstract: 1393538 Inductors HEYES & CO Ltd 9 Nov 1972 [10 Nov 1971] 52135/71 Heading HIT An electrical inductor, for use with discharge lamps and the like, is fitted around the neck thereof as ballast, and comprises windings 12 around generally trapezoidal lamination stacks 11 which are arranged symmetrically around an aperture through which the lamp is inserted, at least two neighbouring stacks being spaced apart, as at 16 where an airgap is produced by an insulating spacer. The lamination stacks comprise elements of a soft magnetic material, e.g. low-silicon magnetic steel and are rendered integral by inter-element resin insulation which is bonded by curing. A heat shrink sleeve (14, Fig. 2, not shown) may surround the lamination and separate it from the winding 12 which may be self supporting. The assembly is enclosed in a housing 17 and a heat conductive resin, e.g. epoxy, polyester, is poured into the housing and cured, and a terminal block is included as at 19, and windings 12 each form a sub-unit of the complete inductance; taps may also be provided on one of the windings. The housing may be permanent or removed after assembly, acting merely as a mould.
Patent GB-1375712-A (GB)
IPC: G03G5/06
Filed: 1971-11-11
Abstract: 1375712 Photo-conductive compositions EASTMAN KODAK CO 11 Nov 1971 [13 Nov 1970] 52394/71 Heading G2C A method of forming a heterogeneous photoconductive composition comprises preparing a solution of a polycarbonate and a pyrylium dye, subjecting the solution to a shearing treatment, preparing a second solution of the pyrylium dye alone, mixing the first, treated solution and the second solution with an organic photo-conductor and a polymer binder different from the polycarbonate, coating the mixture on to a substrate and drying. The composition resulting includes a discontinuous phase comprising a co-crystalline complex of the dye and polycarbonate and has a range of absorption wavelength different from that of a homogeneous combination of dye and polymer. The same dyes, polycarbonates, organic photo-conductors and conductive substrates are disclosed as in Specification 1375398. A variety of examples of the second polymer are listed, and this second polymer may itself constitute the organic photo-conductor.
Patent GB-1248593-A (GB)
Title: Preparation of alkoxy octadienes
Inventor: JADAMUS HANS
IPC: C07C43/14
Filed: 1968-11-06
Abstract: 1,248,593. Octatriene-1,3,7. BRITISH PETROLEUM CO. Ltd. 4 Sept., 1969 [6 Nov., 1968], No. 52547/68. Heading C5E. [Also in Division C2] Octatriene-1,3,7 is obtained as by-product in the preparation of 1-alkoxyoctadienes-2,7 by reacting butadiene with a considerable excess of a primary or secondary alcohol in the presence of a catalyst prepared from a Pd (II) enolate or phenolate and a tertiary phosphine or phosphite, the molar ratio of the phosphine or phosphite to Pd being in the range 3:1 to 1:1.
Patent GB-1447264-A (GB)
Title: Polymer bonded magnets
IPC: H01F41/02
Filed: 1973-11-14
Abstract: 1447264 Permanent magnets; magnetization MAGNETIC POLYMERS Ltd 12 Nov 1974 [14 Nov 1973] 52777/73 Heading H1P A permanent magnet is fabricated by finely powdering a magnetizible alloy, e.g. ferrite, alnico, or rare earth alloy; admixing the powder with a plastic synthetic resin binder; and pouring the mixture at 1 into a non-magnetic die 2 with surrounding electromagnetic coils 5, 6; a pulse magnetization and heating coil 7, and pressure rams 3, 4 of magnetic material. Initially the pulverulent material is subjected to a pulsed high value magnetic field by energization of coil 7 to saturate and orientate the magnetic particles and then a steady lower intensity field in the same direction from coils 5, 6 while applying high pressure over rams 3, 4. Simultaneously the magnetic powder is heated by RF excitation of coil 7 so as to fuse the plastic binder. Thereafter the coil 7 is deonergized and the compacted magnet is cooled and removed. The alloy may contain samarium, praesodymium, lanthanum, cerium, neodymium and cobalt and the binder may be an epoxy resin.
Patent GB-1115606-A (GB)
Title: Process for synthesizing urea
IPC: C07C273/04
Filed: 1966-11-25
Abstract: Urea is obtained by reacting ammonia and carbon dioxide to form an effluent containing urea, water, and unreacted ammonia and carbon dioxide, adding to the effluent a compound selected from n-paraffins and n-olefins having 6 to 25 carbons and such n-paraffins and n-olefins having a substituent chosen from phenyl, cyclohexyl, phenyloxycarbonyl and cyclohexyloxycarbonyl on a terminal carbon atom thereof in an amount of 0.25 to 0.55 parts by wt. per part by wt. of urea to be removed from the effluent thereby forming a crystalline adduct of urea and the said compound, separating the said crystalline adduct from the said effluent, decomposing the separated adduct by heating to release urea and the said compound and recovering the said released urea. The adduct is preferably formed at a temperature not greater than 40 DEG  C. and it may be decomposed by heating at 90-130 DEG  C.  The effluent, after removal of the adduct, may be recycled to the urea synthesis zone and the said compound released by decomposition of the adduct may be returned to the adduct-forming step.  In examples adducts are formed from urea and n-hexadecane, n-octadecane and 1-hexadecene.
Patent GB-1127687-A (GB)
Title: Logic circuitry
IPC: H01H19/56
Filed: 1966-11-28
Abstract: 1,127,687. Semi-conductor logic circuits. RADIO CORPORATION OF AMERICA. 28 Nov., 1966 [13 Dec., 1965], No. 53159/66. Heading H3T. In a logic circuit an output point 3 is connected to a first point 4 solely via the conduction path of a first semi-conductor device 23 of one conductivity type and to a second point 9 via the conduction paths of second and third semi-conductor devices 21, 22 of the opposite conductivity type and a common input is applied to the control electrodes of the first and third devices 23, 22 and a separate input is applied to the control electrode of the second device 21. As shown, insulated gate field effect transistors are used and additional transistors, such as 20, and associated inputs 2 can be provided. Clock pulses from 7 cause the transistors 22 and 23 to conduct alternately so that the output voltage E 0  becomes + V 0  when transistor 23 conducts and O when transistor 22 conducts together with transistors 20 and 21 when supplied with suitable inputs A and B. The circuit may perform NAND and NOR functions and can be connected in groups (Fig. 7, not shown), having a common clock pulse controlled transistor 22. Also the outputs (E 01,  E 02 . . . E 0n ) of these circuits may be connected together so as to require only a single transistor 23. The transistors may be formed as an integrated circuit such that the transistors 20 and 21 are formed as a single conduction path having two control electrodes. The circuit may be modified to perform other functions by connecting transistors of the same conductivity type as 20 and 21 between the output point 3 and the drain electrode of the transistor 22. The circuit may be used in the decoder of a memory and each transistor can be replaced by one of the opposite conductivity type. In known circuits (Figs. 1 and 2, not shown), the transistor 23 is replaced by three transistors connected in parallel.
Patent GB-1534140-A (GB)
Title: Floating convection barrier for evaporation source
IPC: B01D59/34
Filed: 1975-12-31
Abstract: 1534140 Separating uranium isotopes JERSEY NUCLEAR-AVCO ISOTOPES INC 31 Dec 1975 [6 Jan 1975] 53292/75 Headings B1B and BIL  In apparatus for separating uranium isotopes by preferential exitation of U 235  using a laser on ionised uranium vapour, the uranium 48 is melted and evaporated in a water-cooled crucible 18 by an electron beam 25, and a structure 22 extending up to or above the surface of the molten uranium inhibits convection currents to render the heating effect of the electron beam more efficient. The crucible shown is elongated, and filament 24 and structure 22 extend parallel thereto. Figs. 3A, 3B (not shown) illustrate a spiral structure in a round crucible with an electron beam focussed on its centre. The structures are made of tantalum, which will float on molten uranium though it may rest on the crucible floor. The electron beam can melt away the structure to some extent, and this does not inhibit uranium evaporation or contaminate the uranium vapour significantly.
Patent GB-1216289-A (GB)
Title: Nuclear reactor fuel element hold-down and tightening mechanism
IPC: G21C5/06
Filed: 1969-10-31
Abstract: 1,216,289. Fuel elements. UNITED STATES ATOMIC ENERGY COMMISSION. 31 Oct., 1969 [21 Nov., 1968], No. 53362/69. Heading G6C. In a fuel element hold-down and tightening system, only the central element of a fuel element cluster is directly secured to the reactor core support plate, this being done by a bayonettype locking means, and the central element is provided with mechanically activated pads which are moved outward against the adjacent fuel elements for reducing lateral motion or vibration of the fuel elements and also with mechanically retractable arms which extend over the adjacent fuel elements to prevent their upward movement due to hydraulic forces created by the coolant. In the embodiment described, the central element 12 (shown in Fig. 3) of a seven-element cluster is installed in the reactor core first by lowering the element nose piece into an aperture in the core support plate and engaging a bayonet lock on the nose piece in grooves in the aperture wall (Fig. 2, not shown). The central element 12 which may contain a controllable poison rather than fuel in its lower end consists of a hexagonal casing 26 within the upper end of which is movably mounted a tightening and hold-down actuator 28. Six rods 30 are positioned within the casing 26 around the actuator 28, and a mechanical drive rod 29 is disposed within the actuator 28 and secured to the casing 26. Three back-up linkages 31 are provided, each being pivotally connected at one end to actuator 28 and at the other end to the casing 26 via a stiffener rib assembly 33. Casing 26 has slots 34 adjacent the linkages 31, whereby downward movement of actuator 28 causes the linkages 31 to extend outwardly over the adjacent fuel elements 13 of the cluster. Each rod 30 carries a pair of tightening pads 35 and is provided with an angle-shaped cutaway area 37 within which the radially outer surface of a ring-like member 38 is located, the radically inner surface of the member being movably secured in a groove 39 in actuator 28. Downward movement of actuator 28 causes the member 38 to force or bow the rods 30 outwardly so that the pads 35 extend through slots 40 in casing 26 and contact the adjacent fuel elements 13. With the central element 12 secured in position, the actuator 28 is moved upwardly by means of a grapple (not shown) engaging grooves 41, 42 in actuator 28 and casing handle 27, respectively, to retract the linkages 31 and pads 35 and provide clearance for installation of the six adjacent fuel elements 13, whereupon reverse movement of the actuator 28 moves the linkages 31 outward over the top of the fuel elements 13 and the pads 35 outward against the fuel elements 13.
Patent GB-535931-A (GB)
Abstract: 535,931. Jigs. KRAUT, M. Aug. 16, 1939, No. 23616. Convention date, Sept. 6, 1938. [Class 82 (ii)] In a jig in which the flow of water is caused by raising and lowering the bottom of the hutch and there is an expansible connection between the pan forming the bottom of the hutch and the screen, the pan is reciprocated in the vertical direction with a greater velocity in the downward movement than in the upward movement and the reciprocating means are positioned above the jig bed and operatively connected to the pan. Mounted in a frame 10 adjacent an inlet trough 11 is a screen 13 which is supported between grids 14, 15 the latter being forced down by screws 16, a layer of lead shot 24 and sand 25 filling the compartments formed above the screen and below the grid 15. A second screw 18 similarly mounted and provided with grids 20, 21 is mounted in the other part of the frame 10 near an outlet trough 12. Supported by a section of bellows 28, of expansible material, secured to the lower part of the frame 10, is pan 26 of thin material which can be distorted and provided with an outlet 27. The pan 26 is also supported by a spider 30 mounted on the end of a reciprocating rod 31 which passes through a tube 54 which passes upwardly through the jig and is secured to the lower part of a filter 52 provided with an outlet pipe 53. The rod 31 passes upwardly through a housing 33 supported in a frame 34 mounted in the frame 10 and passes through a tube 40 on which is mounted piston 38 and a flexible disc 37 the latter contacting with the conical end of a cylinder 35 mounted within and attached to circumferentially spaced portions of the housing 33. A water inlet 36 is provided in the housing 33 and cylinder 35 and the tube 40 passes up through a flexible diaphragm 49 and a bearing 43 mounted in the cover 44 of the housing, is surrounded by a spring 46 held in position by a washer 47 and nut 48 and is secured to the end of the rod 31 by a nut 51. In operation the material to be treated and water is fed on to the bed formed on the screen 13 by the trough 11 and water is admitted to the housing 33 by the pipe 36. This causes the upward movement of the piston 38 and so the pan 26 but owing to the disc 37 clinging to the walls of the conical part of the cylinder 35 the upward movement is retarded when the disc 37 can no longer be held by water pressure in contact with the cylinder 35, it opens quickly, the piston 38 rises a little further, and then the sudden drop in pressure causes the piston to be pulled downward rapidly. The slow upward movement and the rapid downward movement of the piston also causes a similar movement of liquid upwardly and downwardly through the bed of the jig. As a result of this movement the heavy particles are forced downwardly on to the screen and the lighter particles which rest are discharged over the trough 12. To assist in this action a bumper in the form of -a rubber ring may be mounted under the pan 26 and round the outlet 27.
Patent GB-1354003-A (GB)
Title: Die head
IPC: H01H43/30
Filed: 1971-11-19
Abstract: 1354003 Die heads TELEDYNE Inc 19 Nov 1971 [11 Dec 1970] 53755/71 Heading B3N A thread cutting die head comprises a head body assembly, a plurality of chaser holders 40, a plurality of mounting elements, trunnions 42, for said chaser holders insertable into and removable from head body 22, and a retaining device, plate 35, actuable from the outside of the assembled die head whereby to permit removal and replacement of the chaser holders without disassembly of the head body assembly. The positioning of a trunnion is adjustable by means of nut 78 with screw 80 locking the nut in position. Plates 35 have elongate slots cooperating with the trunnions, each slot having an enlarged portion so that when aligned with a trunnion the chase holder assembly may be replaced. In operation, when feed of shank 20 is halted the chasers pull plate 35, head body 22, closing ring 30 and adjusting ring 32 forward until locking pins 50 are free of the bushings 52. A spring 55 rotates ring 30 relative to ring 32 to disengage the chasers from a workpiece. Ring 30 is realigned with pins 50 either manually or automatically whereupon the parts of the die head are returned to their starting positions by spring pressure.
Patent GB-1426864-A (GB)
Title: Apparatus for use in tree transplantation
IPC: A01G23/04
Filed: 1971-11-22
Abstract: 1426864 Tree transplantation G N REES and C N REES 7 Feb 1973 [22 Nov 1971] 54084/71 Heading A1E [Also in Division B8] Apparatus to aid the removal of trees from the ground for subsequent re-planting comprises a frame 1 in two halves 2, 3 bolted together at 4 and 5 to form a rigid unit. Guides 6 are attached rigidly to the frame so that their axes 7 converge at a point 8. The frame 1 is placed on the ground around the tree and spike members 9 which fit in the guides 6 are driven into the soil to the limit permitted by the stops 11 and retained in that position by pins 12. The tips 10 of the spikes are then all close to the point 8. The whole assembly containing the root ball is then lifted and placed in a suitably shaped container (not shown) also constructed in two halves to facilitate re-planting. In modified forms, the frame 1 may be circular and any number of spikes may be used and these may be curved and work in curved guides.
Patent GB-1402523-A (GB)
Title: Electrical outlet unit
IPC: H02G3/18
Filed: 1971-09-14
Abstract: 1402523 Floor boxes DORMAN SMITH BRITMAC Ltd 13 July 1972 [14 Sept 1971] 54114/74 Divided out of 1402522 Heading H1N The subject-matter of this Specification is substantially the same as that of Specification 1,402,525, but the claims relate to an electrical distribution unit including a box having a sheet metal base, a jacking screw passing through a threaded aperture in the base, adjacent each corner of the box whereby the unit can be levelled relative to a floor surface.
Patent GB-1566310-A (GB)
Title: Mercaptocarboxylic acid esters
IPC: C07C313/00
Filed: 1976-12-24
Abstract: Mercaptocarboxylic esters of the formula I are prepared by reacting epoxides with mercaptocarboxylic acids. The substituents of the formula I have the meaning given in Patent Claim 1. The resulting compounds are intermediates for the synthesis of crop protection agents, lubricant additives and polymer additives. <IMAGE>
Patent GB-1106150-A (GB)
Title: Improvements relating to methods and machines for generating gears
IPC: B23F9/12
Filed: 1966-07-08
Abstract: 1,106,150. Gear - cutting. GLEASON WORKS. 8 July, 1966 [5 Aug., 1965], No. 54147/66. Divided out of 1,106,149. Heading B3K. A method of generating gears with tapering tooth slots, with a rotary tool having opposite side cutting surfaces representing the opposite sides of a tooth of a generating gear which are coaxial surfaces of revolution, comprises generating one side of a tooth slot with one side cutting surface of the tool by rotation of the gear about its axis and simultaneous rotation of the tool about the axis of the generating gear, effecting a relative shifting between the gear and the axis of the generating gear in a direction perpendicular to the said axes and effecting relative rotation between the tool and the gear about one of said axes to position the opposite side cutting surface of the tool for contact with the opposite side of the tooth slot, and then generating said opposite side of the tooth slot by reverse rotation of the gear about its axis and simultaneous reverse rotation of the tool about the axis of the generating gear. The machine is as described in Specification 1,106,149.