baber/WOPTO huggingface dataset:
Patent GB-1285403-A (GB)
Title: Wire or rod member retention assembly and method of fabricating same
IPC: B64C27/32
Filed: 1970-07-22
Abstract: 1285403 Helicopter rotor blade UNITED AIRCRAFT CORP 22 July 1970 [25 Nov 1969] 35422/70 Heading B7W [Also in Division C7] A retention assembly having a wire or rod member under tension comprises first means 32 to retain one end of the wire and second means 34 to retain the other end or an intermediate portion of the wire, the first end being retained by plating thereon a shoulder 100 of specified size such that it is snugly received in a counterbore 68 of the first retention means 32. A plurality of wires 30a-30d may be used to hold a helicopter blade (16), Fig. 1 (not shown), on a rotor hub (12), the first and second retention means 32, 34 having apertures 64, 66 and counterbores 68, 70 able to receive the shoulder 100, 76 plated on each end of the wire. There are plated on by an electrochemical process e.g. Nickel from nickel sulphamate solution and to ensure that only a selected end portion 102 is plated a maskant 106, such as bees wax or shrink tubing, is placed on the wire. After plating to preselected dimensions, the maskant is removed and the shoulder is machined to fit the counterbore. To ensure equal tension in a series of wires retaining two members in position, preloading for testing tension by plucking is carried out, the shoulders of the individual wires then being adjusted either by further machining of the overstressed wires or by shimming the shoulder of the understressed wires. Fixture members 60, 62 may be used to restrain the wires during fabrication, threaded members 85, 88 being provided for varying tension of the wires or in a modification of at least one of the wires.
Patent GB-1202441-A (GB)
Title: Improvements in liquid or gas chromatography
Inventor: PRETIOUS VICTOR
IPC: G01N30/90
Filed: 1967-08-02
Abstract: 1,202,441. Chromatographic separation process. V. PRETORIUS and H. H. HAHN. 2 Aug., 1967 [5 Aug., 1966], No. 35463/67. Headings B1L and B1X. In a gas or liquid chromatographic separation process distortion of the front of the forwarding phase is prevented by subjecting the forwarding phase to flow velocity profile straightening effects. This can be done (a) by exposing the retarding phase on the pore surfaces of a porous mass of statistically uniform pore size at least in a direction substantially at right angles to the flow path (b) by feeding the forwarding phase through the porous retarding phase under turbulant flow conditions or (c) by feeding the forwarding phase alternatingly through sections of the porous retarding phase and open connecting passages wherein a net transverse flow of the forwarding phase is brought about during flow through the said open connecting passages. The retarding phase comprises or is exposed on the surface of one or more separated porous masses and each porous mass increases in cross-sectional area transversely to the flow path of the forwarding phase.through each mass. Examples of suitable apparatus for effecting the above process are shown in Fig. 2 which comprises a fluidised bed; Fig. 5; Fig. 8; Fig. 12 in which sample delivered around the inner periphery of the retarding phase is developed and collected at the external periphery; Fig. 16 in which sample is deposited on packing 52, which packing is then dropped down into annular packing 3, which packing is then used to separate the sample by passing forwarding phase from tube 57 outwards through masses 52 and 3; and Fig. 17 which shows a spherical retarding phase 60. In Figs. 12, 16 6 and 17 the pore size of the retarding phase is statistically uniform at least in a direction at right angles to the direction of flow through the retarding phase.
Patent GB-1475613-A (GB)
Title: Process of ingot casting
IPC: B22D7/12
Filed: 1975-08-28
Abstract: 1475613 Casting ingots FOSECO INTERNATIONAL Ltd 28 Aug 1975 [4 Sept 1974] 35546/75 Heading B3F A process for the production of an ingot by bottom pouring metal into an ingot mould comprises locating a multilayered board in the mould before the commencement of pouring, the layers of the board comprising different materials in slab form which exhibit different properties and which control the solidifying of the metal and present oxidation during pouring and hence reduce imperfections in the cast ingot. The multi-layered board has a first layer in the form of a preformed slab having an anti-piping composition including an exothermic material, a refractory material, a fibrous material and easily oxidizable metal such as aluminium or calcium. Other constituents may include vermiculite, perlite, obsidian, or acidtreated expandable graphite. The second layer is made up of a fluxing agent, a fibrous material and a binder, and which may include such fluxing agents as fly ash, sodium carbonate, blast furnace slag, wollastonite, cryolite, fluorspar and mixtures thereof. Suitable fibrous materials include paper pulp, asbestos and slag wool used alone or in combination and such binders as phenolformaldehyde resins, starches clays and colloidal silica sols used alone or in combination. In addition to the two layers the board includes a refractory heat insulating material situated in a central cavity of the second layer and includes a refractory material such as silica sand, alumina, magnesia, chamotte and mixtures thereof, a fibrous material similar to that in the other two layers and similar binder materials. The layers of the board are formed in preformed slabs and may be stuck or nailed together or alternatively formed together as a single body.
Patent GB-1112732-A (GB)
Title: Improvements relating to the production of non-woven fabrics
Inventor: HARTMANN LUDWIG
IPC: D04H3/007
Filed: 1966-08-10
Abstract: The method of the Parent, wherein a non-woven fabric structure is made by extruding molten fibre-forming polymeric material through apertures arranged in a number of rows to form sheets of continuous filaments, stretching the filaments by gas streams forced out of slots adjacent and parallel to each side of each row of apertures and leading each sheet of filaments, together with its associated gas streams, through an open-ended duct through which the filaments and gas stream pass substantially without turbulence, the filaments thereby being stretched and set while being kept parallel to, but separate from, one another, and forming a fleece by collecting the sheets of filaments on a carrier moving continuously beneath the ducts, is modified in that the ducts are fixed against oscillation about their breadth and are so arranged that the first filament in one sheet and the last filament in another sheet both lie substantially along one line, this line being parallel to the line of movement of the carrier.  Other operating conditions are as described in the Parent.
Patent GB-915396-A (GB)
Title: Epicyclic power transmission mechanisms
IPC: F16H3/66
Filed: 1959-10-23
Abstract: 915,396. Change-speed gear. WICKMAN, A. C. Oct. 10, 1960 [Oct. 23, 1959], No. 35989/59. Class 80 (2). Planetary change-speed gear for motor ears &c., of the type driven through a double clutch, comprises two input sun gears and two reaction members, one of the reaction members also being a sun gear, a driven planet carrier, a ring gear engaging planet pinions and stationed for reverse and clutch means for connecting one of the input sun pinions to the reaction sun pinion to obtain direct drive. As shown, in one form, a double clutch drives one or other of two concentric shafts 1, 2, Fig. 1, fast with sun gears s1,s2. To establish the first ratio, the shaft 1 drives the sun gear s1, and a detent pawl 18 is engaged with a disc 17 to act through a ratchet clutch 16 and hold a reaction sun gear r2 stationary, a driven planet carrier 19 mounting a planet pinion 23 meshing therewith and also meshing a compound planet pinion 22 meshing the sun gear s2 which rotates freely, the compound planet pinion 22 also meshing through a planet pinion 21a with a double planet pinion 21 meshing the driving sun gear 21. To establish the second ratio, the sun gear s2 is instead driven. To establish the third ratio, the sun pinion s1is driven by the input shaft 1 and a reaction sun gear r1, meshing the planet pinion 21a in turn meshing the planet pinions 21 meshing the sun pinion sl, is stationed by engagement of a clutch-brake member 5 with a brake surface 6. To establish the fourth ratio, the gearing is instead driven through the sun gear s2. A fifth ratio, direct drive, is obtained by engaging the clutch-brake member 5 with a clutch disc 11, thus locking together the sun gear s2 and the reaction sun gear rl. For reverse, the sun pinion sl drives and a ring gear 25 meshing the planet pinions 23 is stationed by engagement of the detent pawl 18 with teeth 26 on its periphery. In another form, similar to that described in Specification 40554/59, first ratio is established when a sun gear s2,Fig. 2, drives through planet pinions 21 to a carrier 19, a ring gear rl being held stationary by engagement of a detent pawl 18 with a toothed disc 17 acting upon the ring gear through a ratchet clutch 16. The second ratio is obtained by instead driving through a larger sun gear s2. Third ratio is established by engaging a clutch-brake member 5 with a brake surface 6 to station a reaction sun gear r2, planet pinions (not shown) meshing the reaction sun gear r2 and also meshing with the planet pinions 21, and drive being transmitted to the gearing through the sun gear s1 To establish the fourth ratio, drive is instead transmitted through the sun gear s2. Fifth ratio is established when the clutch-brake member 5 is engaged with a clutch disc 11 rotating with the sun gear s2 accordingly locked to the reaction sun gear r2. Reverse is obtained by engaging the detent pawl 18 with teeth on the periphery of a ring gear 25 meshed by the planet pinions (not shown) in turn meshing the planet pinion 21, and transmitting drive through the sun gear s1.
Patent GB-900818-A (GB)
Title: Improvements in or relating to seats
IPC: B60N2/75
Filed: 1958-11-10
Abstract: 900,818. Vehicle seats; resilient mountings. FLINT, H. C. Nov. 10, 1958 [Nov. 25, 1957], No. 36071/58. Classes 52 (1), 52 (2) and 52 (4). A vehicle seat has a separately-formed backframe 12 pivotally connected to a seat-frame 10 by a pin 14 and parallel sinuous springs 28 extend along the seat-frame from front to rear. An auxiliary back-rest frame 76 is pivotally supported at the lower end by brackets mounted on the seat torsion-bars 58 and at the upper end by a U-shaped link 98 journalled in blocks 100 mounted on frame 12. A border wire clipped to springs 28 by clips 48 holds the springs in spaced parallel relation. A bench seat, Fig. 8, has two tiltable back-rest portions 12 and a central portion 162 secured by pivots to upstanding arms 164 to form a back support or fold down to form an arm-rest. In a modification, Fig. 14, blocks 105 carrying bearings 104 of low friction resin material enclose springs 107 which allow some lateral movement of link 98.
Patent GB-959391-A (GB)
Title: Thermometer manufacturer
Inventor: FREYNE EUDMON CANICE DE
IPC: C03B23/09
Filed: 1959-10-26
Abstract: <PICT:0959391/C1/1> <PICT:0959391/C1/2> Apparatus for sealing the bulb and forming the topping chamber of a thermometer comprises means for clamping the centre part of a thermometer case in a horizontal position and rotating it about its longitudinal axis when so clamped, and means for heating regions of the case on opposite sides of the clamping means. The thermometer case is held in a three-jaw chuck 3, supported on a casting 2 from the main base-plate 1 and rotated from a motor 7 through belt 4 and pulleys 5, 6. Brackets 8 at each end of the base-plate 1 support parallel tubular tracks 9 which pass through the casting 2 and on which are mounted carriages 10, 11. Carriage 10 supports a wide burner 12 for heating a band of glass approximately 1/2 inch wide for blowing up the topping chamber and chamber 11 a pin fire burner 13 for sealing off the bulb, both burners being supported by knuckle joints 14, 15.  The bulb is sealed first by burner 13 moved into position opposite the desired marked point on the case by a handle 16 moving the support 17 into engagement with a spring-loaded plunger 18 to disengage a friction clutch 18a on one track 9 to allow sliding along the track 9.  The case is then normally annealed before forming the topping chamber by burner 12 after filling the bulb with mercury or spirit, which is heated to expand the filling medium to compress the air trapped in the bore and thereby form a bubble in the bore, the bubble being then extended by hand operation by tweezers.
Patent GB-374434-A (GB)
Title: Improvements in stoker drive mechanisms
IPC: F23K3/12
Filed: 1931-12-02
Abstract: 374,434. Mechanical stokers. AMERICAN ENGINEERING CO., Aramingo Avenue, Philadelphia, U.S.A. Dec. 2, 1931, No. 36335. Convention date, Sept. 17, 1930. [Class 51 (i).] In a mechanical stoker comprising a primary fuel feeding ram 12, Fig. 1, delivering into a retort 2 containing secondary fuel feeding rams 4, each of the secondary fuel feeding rams is connected to a single operating member and is provided with means such as shear pins whereby in the event of one of the secondary fuel feeding rams failing to operate the remaining fuel feeding rams will be unaffected. Power is transmitted to the rams from a crank shaft 15 through a rod 19 and bell-crank lever 18, having one arm 24 connected to the fuel feeding ram 12 through a link 25, the pivot 28 of which has a line of movement coinciding substantially with the axis of the ram 12. The arm 31 of the bell-crank lever 18 is forked and carries pivoted blocks 33, Fig. 3, provided with tapered apertures for actuating rods 35 of the secondary fuel feeding rams. Collars secured by shear pins 61, 70 are provided on the rods 35 and horseshoe collars 57 are provided to adjust the lost motion between the rods 35 and the blocks 33. The rods 35 are connected by the rods 39 to levers 41 pivoted to a member 65, Fig. 7, engaging with a tapered hole in a projection 62 on the ram 4 or, as shown in Fig. 8 pivoted to rods 65a provided with fixed and removable collars 71, 72 and shear pins 73, 74. A shear pin 21 is provided to connect the rod 19 and bell-crank lever 18, which according to a modification may be of a composite nature. In the modification shown in Fig. 11, the lever 106 is connected to both the primary and secondary fuel feeding rams and driven from the shaft 15. In a further modification the bell-crank lever 18 has its lower arm 31 arranged to drive directly certain of the operating rods for the secondary fuel feeding rams, while the arm is also connected through a link or links to one or more levers for driving the remainder of the secondary rams. In the modification shown in Fig. 14, the main shaft 15 drives through gearing a shaft 114 for operating through a rod 117 and lever 116 the secondary rams, the main ram being driven from the shaft 15 through a rod 119 and link 118. The invention is also described as applied to the secondary ram operating mechanism described in Specification 358,896.
Patent GB-619428-A (GB)
Title: Production of screw-threaded studs and the like
IPC: B21H3/02
Filed: 1946-12-10
Abstract: 619,428. Rolling screw-threads. AUTO MACHINERY CO., Ltd., and LEEDHAM, B. Dec. 10, 1946, No. 36404. [Class 83 (iv)] [Also in Group XXV] In forming a screwthread, adjacent a shoulder, on a rod of a diameter substantially equal to the effective diameter of the thread, the shoulder, comprising at least one annular ridge or at least one thread of a different hand or shape from that being rolled, is formed simultaneously with the thread-rolling operation by parts secured to the rolls or platens. A platen consists of two parts clamped together, one of which, 22, forms the required screw thread 24 and the other 25, a series of annular ridges 27, on the workpiece 33. A form of roll for forming the thread comprises a part for rolling the screw thread and a part for simultaneously rolling a screw thread of opposite hand, Fig. 4 (not shown).
Patent GB-786431-A (GB)
Title: Improvements relating to counter-balance devices for hingeable covers
Inventor: CAPPER LAURENCE CLAUD
IPC: E05D3/06
Filed: 1954-12-16
Abstract: 786,431. Hinges and pivots; door operating. VAUXHALL MOTORS. Ltd. Nov. 21, 1955 [Dec. 16, 1954], No. 36430/54. Classes 65(1) and 65(2) A counterbalanced lid (e.g. car bonnet), is supported on each side by a bracket 10 pivoted at 1 to a fixed member 8, and two pivotally interconnected links 11. 12 pivoted at 2 to the bracket 10 and at 4 to the fixed member 8, a pair of springs 6, 7 connecting each end of a pin 13 through a projection 12A of the lever 12 to a pin 9 through the member 8. When the cover is fully closed the moment applied by its weight on lever 12 about the pivot 4 exceeds that applied by the springs, and when the cover is fully open the converse is the case, while in a partly open position said moments are equal. An adjustable stop 5 limits opening. The end 11A of the lever 11 is bent to accommodate the projection 12A in the closed position.
Patent GB-1056766-A (GB)
Title: Crane
IPC: B66C9/16
Filed: 1963-09-16
Abstract: 1,056,766. Bridge cranes. HILGERS A.G. Sept. 16, 1963 [Sept. 14, 1962; March 28, 1963], No. 36431/63. Heading B8B. A crab 10 is carried by a bridge 6 which is pivoted at 8 on the mast 2 of a slewing crane 1 and the other end of the bridge 6 is carried at 9 by a cable 7<SP>1</SP> operated by winch 4<SP>1</SP> for adjustment purposes. Winch 4<SP>1</SP> forms with mast 2<SP>1</SP> part of the slewing crane 1<SP>1</SP>. Crab 10 is traversed along bridge 6 in one direction by cable 7 operated by winch 4 against a counterweight 11. Crab 10 carries load pulley 15 which is hoisted by cable 14 operated by winch 3. Thus bridge 6 replaces the jib of crane 1 so that the bridge 6 may be used with two slewing cranes to form a bridge crane.
Patent GB-1528317-A (GB)
Title: Production of maleic anhydride
IPC: B01J8/06
Filed: 1975-09-04
Abstract: 1528317 Maleic anhydride STANDARD OIL CO 4 Sept 1975 36448/75 Heading C2C Maleic anhydride is made by contacting nbutane or n-butene and O 2  sequentially in a reactor with a first catalyst, which gives a product, wherein at least a part of the hydrocarbon is converted to butadiene, and with a second catalyst which catalyses the formation of maleic anhydride.
Patent GB-417291-A (GB)
Title: Improvements in coil-tube heat-exchange apparatus for fluids
IPC: F28D7/02
Filed: 1933-12-28
Abstract: 417,291. Coil-tube heat-exchangers. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Soc. L'Air Liquide Soc. Anon. pour L'Etude et L'Exploitation des Procedes. G. Claude ; 75, Quai d'Orsay, Paris.) Dec. 28, 1933, No. 36482. Addition to 416,096. [Class 64 (iii).] The helical tubes of the heatexchanger described in the parent Specification are tightly wound so that the tubes 2 of one coil indent those of the coil upon which they are wound.
Patent GB-1327300-A (GB)
Title: Multiple channel redundant control system
IPC: G05D1/00
Filed: 1971-08-03
Abstract: 1327300 Fluid pressure servocontrol MENASCO MFG OF CANADA Ltd 3 Aug 1971 [19 Aug 1970] 36509/71 Heading G3P In a servo system comprising a plurality of redundant force summed control channels, each channel having a hydraulic actuator displaceable in response to an electrical input signal and having electrical negative feedback, each channel has failure detecting means to hydraulically disconnect a failed channel. Fig.2 shows one of three identical channels. Each actuator 15 has a rod coupled to a connecting link 20 and each actuator could supply sufficient force on its own to move, e.g. a control surface on an aircraft. Each actuator comprises a double acting piston, Fig.4 (not shown), connected to an electrically operated control valve 30 in which a pivoted armature 35 moves an attached jet pipe to direct fluid to one side or the other of a spool valve 41. (Details in Fig.3 not shown). The armature is normally centralized but is displaceable in either direction by D.C. from a summing amplifier 136. This combines the input command signal 28, an actuator position feedback signal on line 176 and a signal on line 172 from a sum and difference amplifier 137 which is the difference between the force exerted by the instant actuator (measured by a fluid pressure transducer 130) and the average of all the actuators. Fluid to control valve 30 is  supplied via a by-pass valve 31, which is of similar construction to 30 but its spool is spring biased to a position in which fluid is by-passed from the control valve 30. Its armature 70 is also biased so that jet pipe fluid assists the spring, but during normal operation current through its coil 76 overcomes the bias so that fluid is supplied to valve 30. This current is supplied by a driver 78 connected to a limit detector 77 which receives the signals from sum and difference amplifier 137. When this exceeds a prescribed amount (i.e. the pressure difference between this channel and the average is excessive), showing that the channel has failed, the limit detector switches off the current to the by-pass valve and so hydraulically disconnects the channel. The signal from 137 is supplied via a "lag-lead amplifier" 138; this comprises an integrator and is arranged so that a relatively low pressure difference which persists for a long time is as effective as a high difference (e.g. six times higher) for a short time. The limit detector also disconnects the channel in the event of pressure failure, detected by pressure switch 135. When operated it also signals the  limit detectors in the other channels via an "inhibit selector" 142 which then are unable to respond to failures in their own channels. The detector is activated by a "channel arm" signal 185. The loss of pressure which occurs in one channel after it has been disconnected is communicated to the sum and difference amplifiers in the other channels so that the average value may be connected. The electrical circuits are illustrated Figs.5..7 (not shown).
Patent GB-336149-A (GB)
Title: Improvements in and relating to watering appliances for animals
IPC: A01K7/06
Filed: 1929-11-29
Abstract: 336,149. Beatty, W. G. Nov. 29, 1929. Valves actuated indirectly.-A drinking-trough in which the supply is controlled by a nose-plate operated valve, has a horizontal tubular portion 1, to which the water supply is connected, with a downwardly inclined spout 2 and a bracket 3 for mounting on the stall post 4 by means of a clip 5. The spring-loaded valve 29 is mounted in a detachable fitting 26 which screws into the mouth of the spout 2 to form a unit and is opened inwardly by means of a nose-plate 23 pivoted to a projection 20 from the spout. A removable basin 13 is clamped in position between the spout 2 and a pivoted lever 12 by a set-screw 11. Specification 334,801, [Class 5 (ii), Housing &c. animals], is referred to.