baber/WOPTO huggingface dataset:
Patent GB-1350948-A (GB)
Title: Preparation of polyurethane filaments
IPC: D02G1/04
Filed: 1971-10-14
Abstract: 1350948 Polyurethane filaments TEIJIN Ltd 14 Oct 1971 [15 Oct 1970] 47930/71 Heading B5B [Also in Division D1] Coalesced spandex (Registered Trade Mark) multifilaments are made by extruding a melt or a solution of the spandex polymer through a spinneret having a plurality of orifices to form separate filaments and then passing these filaments into a first zone where they are given a false twist and so urged together by the rotating action of a fluid moving in a vortex. The twist extends back up the filaments to the print where they are sufficiently tacky to coalesce. After leaving the first vortical zone the filament bundle is then passed through a second vortical zone where a fluid, moving in the opposite direction to the fluid in the first zone, substantially removes the false twist. The pattern of vortical flow may be such that it helps to advance the movement of the filaments. In Fig. 1 the filaments are dry-spun into cell 2 where the solvent is evaporated off to give filaments Y. First jet-twister 5 is disposed below the spinning cell and the twist T imparted by it extends back into the cell, where the still tacky filaments are consequently coalesced. The twist is removed by second twister 6. The fluid used in the twisters may be either a liquid or a gas; preferably, water is used in the first zone and air in the second. Each zone may consist of more than one twister; the Examples describe the use of two in each zone. The polymers used in the exemplified processes are obtained by reaction between polytetramethylene glycol (molecular weight 2000) with 4,41-diphenylmethane diisocyanate or by reaction of this diisocyanate with a mixture of polytetramethylene glycol (molecular weight 1600) with polyethylene propylene adipate (molecular weight 1100).
Patent GB-999453-A (GB)
Title: Improvements in or relating to a cut-off mechanism for severing selected lengths of material from a moving web and an electronic register therefor
IPC: B26D5/24
Filed: 1962-12-20
Abstract: 999,453. Cutting webs. KOPPERS CO. Inc. Dec. 20, 1962 [Jan. 3, 1962], No. 48218/62 Heading B4B. [Also in Divisions B3 and G3] The revolving blades 16 of a cut-off mechanism for a continuously moving web of corrugated board 13 are controlled either to operate in register with a design pre-printed on the board, by comparison of design position with blade position detected by photocell devices 22, 23 or to cut off controlled lengths of unprinted board by retro-actively adjusting mean blade speed in relation to web speed, as determined by tachogenerators 21, 20 in the corresponding drives. A single motor 17 drives web feeding belts 14 directly, and blades 16 through a differential 26, a variable speed gear 41 and a device 47 which accelerates the blades at every revolution to match the web speed at the instant of cutting, and is described in Specification 805,318. During register control, corrections are applied to the speed of a motor 24, energized from a generator 28, continuously driving the cage of differential 26, which has a 1 to 1 ratio when the motor 24 is running at " base speed," and the variable speed gear 41 and blade accelerating device 47 are adjusted only by hand, in the event of excessive correction being required. Change over to automatic length control is effected by movement of switches 56, 57 and idler wheel 32, which decouples correcting motor 24 and engages gears which lock the differential at 1 to 1 ratio. The switches de-energize register control panel 11 and energize a length controller 12, in which the difference in output of tachogenerators 20 and 21 is compared with a reference voltage representing desired sheet length; the resulting error signal drives a servomotor 46 which adjusts both the variable speed gear 41 (which determines mean blade speed) and the accelerating device 47 so that its operation is corrected for the new mean blade speed. The switches 56, 57 also provide an interlock for the drive motor 17, which is energized only when the gears are fully meshed.
Patent GB-1465309-A (GB)
Title: Reaction products of phenosulphonic acid-ureaformaldehyde processes for their manufacture and their use as substances having a tanning action
IPC: C08G14/08
Filed: 1974-11-07
Abstract: 1465309 Aminoplast/phenolsulphonic acid condensates CIBA-GEIGY AG 7 Nov 1974 [8 Nov 1973] 48240/74 Heading C3R [Also in Division C6] Products useful in tanning are obtained by reaction of (A) 100 p.b.w. of a condensate of (a) 1 mol. of a self-condensed phenolsulphonic acid containing 1-5 residues derived from the phenolsulphonic acid with (b) 0À1-0À6 mols of a C 1-4 -alkoxy-benzene with (B) 10-40 p.b.w. of a mixture or reaction product of (c) 1 mol of urea or a related compound listed below and (d) 1-4 mols of formaldehyde as such or as an agent releasing formaldehyde. The compounds (c) are urea, biuret, thiourea, quanidine, dicyandiamide, ethyleneurea, dihydroxyethyleneurea, propyleneurea, acetylenediurea, urethane and oxadiazinone; (c) preferably is urea and/or biuret, optionally containing up to <SP>1</SP>/ 6  of one of the other such compounds. In Examples 1-9 500 p.b.w. of molten phenol is sulphonated with 420-500 p.b.w. of 100% H 2 SO 4 , 20% oleum or 66% oleum, and the product is self-condensed at 145-170 C. under 11-13 Torr, then condensed with 100 p.b.w. of methoxybenzene (144 p.b.w. of ethoxybenzene in Example 3) at 130- 155 C. under 11-13 Torr; to the cooled products is added 20-40 p.b.w. of water then 24 p.b.w. dimethylolurea (in Example 4) or 5-21 p.b.w. of urea (with 4 p.b.w. of biuret in Example 3 and 2 p.b.w. of ethyleneurea in Example 7) and 10-62 p.b.w. of formalin (paraformaldehyde in Example 6); the mixture is condensed at 40-75 C. for 4-12 hrs., then brought first to pH 4À0-6À0 with ammonia, NaOH or ethanolamine, then to pH 2À8-3À6 with formic and/or acetic, or lactic or oxalic acid. In Examples 10-30 the products are used in 200 p.b.w. water to re-tan 100 p.b.w. of chrome leather (4-6 p.b.w.) or to tan 100 p.b.w. of raw hide (18 p.b.w.).
Patent GB-1167883-A (GB)
Title: Subcooled Pipe Line for Removal of Liquid from Refrigerated Storage Tank.
IPC: F16L53/70
Filed: 1966-10-27
Abstract: 1,167,883. Coaxial pipes. CHICAGO BRIDGE & IRON CO. 27 Oct., 1966 [30 June, 1966], No. 48307/66. Heading F2P. [Also in Division F1] In a liquefied gas pumping system the pump suction pipe is in heat exchange relationship with integral, coaxially extending, external or internal pipe means connected at one end to the liquefied gas through orifices or a valve and at the other end to pressure-reducing means whereby evaporation of the liquid cools the liquid in the suction pipe line.
Patent GB-1094793-A (GB)
Title: Taper leaf springs and method of making same
IPC: B21D53/88
Filed: 1965-11-15
Abstract: 1,094,793. Making springs; bending; rolling, working at specified temperatures, altering physical structure by mechanical treatment. ROCKWELL-STANDARD CORPOATION. Nov. 15, 1965 [April 20, 1965], No. 48385/65. Headings B3A, B3E, B3M and B3V. In a method of making a tapered leaf spring a blank is taper rolled, heat treated and stress peened on the surface which will be the tension surface of the finished spring and includes the step of grinding at least the tension surface and the adjacent longitudinal side edges. The ground blank, Fig. 16 (not shown) is heated to 1200-2250F, treated to resist oxidation and scale formation and while still heated, taper rolled to shape. A cam 64 engages a roll 62 forcing it against the blank 65, which is held against movement. The roll 62 is advanced by frictional engagement between the blank and the cam and followers (not shown) integral with and at each end of roll 62. The leaf 65 is heated to an austenitising temperature, transferred to a tempering furnace 76 and formed to the required camber therein. When removed from the furnace it is quenched while still confined. The spring is finally bent in the direction of service loading beyond its yield point to give the final camber and stress peened, Fig. 11 (not shown). The finished spring may be treated with a corrosion resistant coating. In alternative methods, the grinding step may follow the taper rolling and, prior to cambering, spring attachment eyes (108) may be formed by heating and rolling the ends of the spring, Fig. 7 (not shown).
Patent GB-1122519-A (GB)
Title: Apparatus for spraying liquid substances
IPC: B05B7/32
Filed: 1966-10-28
Abstract: 1,122,519. Mixing flowing fluids; spray producers. I. KARCHER [trading as ALFRED KARCHER]. 28 Oct., 1966 [30 Oct., 1965], No. 48417/66. Headings B1C and B2F. A liquid is supplied from a container open to atmospheric pressure by a metering pump to a mixing point in a conduit carrying superheated water, the mixture being supplied to a spraying apparatus. In Fig. 1 liquids A, B, are supplied by pumps 12, 22 through non-return valves 14d, 14g, to a mixing point 14 to which superheated water is also supplied through a non-return valve 14a, the mixture passing to a spray head 16a, An electrical control circuit (Fig. 2, not shown) is arranged so that only one of the liquids A, B can be supplied to the mixing point at one time, operation of the push-button associated with one of the liquids stopping supply of the other, and a delayaction relay ensuring a time lag before pumping of the one liquid begins so that there can be no overlap. A similar arrangement for supplying two spray heads is depicted in Fig. 4 (not shown). In another arrangement (Fig. 3, not shown) a mixture selected from four liquids C, D, E, F can be sprayed; the apparatus may be provided with two spray nozzles and means for operating the superheated water and additive supply pumps at full or half speed according to whether one or two spray nozzles are in use.
Patent GB-1517470-A (GB)
Title: Simulating circuits for simulating the operation of dynamic decoder circuits
IPC: H03M7/00
Filed: 1976-11-23
Abstract: 1517470 Transistor circuits SIEMENS AG 23 Nov 1976 [1 Dec 1975] 48729/76 Heading H3T An arrangement for simulating the delay of a dynamic decoder circuit comprises: a pair of transistors M42, M43 responsive to true and inverse address signals and a varactor diode C41 interconnected as shown to a node K41; an intermediate stage coupling the node K41 to a second node K42, and an output stage responsive to the potential at the second node. Both nodes are initially pre-charged to UDD by a pulse #v which turns on transistors M41, M48 and an address signal then turns on either M42 or M43 to discharge node K41 to reference potential VSS. Transistor M47 then turns on the discharge node K42 and thus turns off transistor M46 producing an output #k after a delay time determined by capacitors C41, C42, C46, the delay corresponding to that in an associated decoder.
Patent GB-1003169-A (GB)
Title: Package and method of forming same
Inventor: TURNER GEORGE GARNHAM
IPC: B65B7/28
Filed: 1962-12-28
Abstract: 1,003,169. Food package. OSCAR MAYERKARTRIDG PAK, S.A. Dec. 28, 1962, No. 48823/62. Heading B8C. [Also in Division B3] An hermetically sealed food package comprises a container 11 of deformable sheet material, e.g. thin gauge sheet metal, having a base 12 and side wall 13 with a flange formation 14, a transparent plastics film 22, and a metal closure ring 20. The flange formation 14 comprises inner and outer flanges 15, 17 connected by an outwardly tapering wall 16, and the ring 20 has a corresponding flange formation 18 with a lip 25. The package is formed by filling the container with a food product 12 and supporting it by the flange 15 on a tubular form 26. The film and closure ring are then placed in position on the container and held by a clamp 28 whilst rolls 31 roll the flange formations 14 and 18 into the shape shown in Fig. 5, any excess film being removed by knife edges 32 on the rolls. The rolling process may be carried out in a vacuum sealing head and in this case the transparent film is drawn into contact with the food product on removal. A gasket may be inserted between the film and one of the flange formations, and when a vacuum head is used this gasket may be of tacky material to help hold the film in position. The inner edge of the inner flange 21 of ring 20 is arranged to be in vertical alignment with the wall 13 so that when the film is cut adjacent to this edge the whole contents of the package may be removed in a solid mass. Specification 1,003,170 is referred to.
Patent GB-1337587-A (GB)
IPC: F16L39/00
Filed: 1970-11-15
Abstract: 1337587 Boring earth and rock CAN-TEX DRILLING & EXPLORATION Ltd and H S CHAPMAN 15 Nov 1970 [25 Aug 1970] 49071/70 Heading E1F [Also in Division F2] Apparatus for forming a dual wall concentric drilling string comprises a series of stands dual wall metallic pipe interconnectable endto-end, each stand including an inner pipe 22 located within an outer pipe 21, the inner and outer pipes having respective box joints 32, 25 and pin joints 38, 26 for connection to adjacent stands, the pin joint 38 having a resilient seal 44 co-operating with a seal face on the box joint of a similar stand to form a fluid tight joint, the arrangement being such that the outer joints engage in fully made up condition without the fully made up condition of the inner joints being reached. The inner and outer pipes are located relative to each other by radial webs 29. The joints 32, 38 are threaded to the pipe 22 at connections 33, 39 having seals 35, 41. Lugs such as 34, 46 connect the inner and outer pin or box joints together, so that a joint may be removed by breaking a weld connection with the outer tube and rotating the outer joint to unscrew the inner joint from the pipe 22. The pipes are assembled in a drill string 11, Fig. 1, which is rotated by a diesel pump powered hydraulic motor 15 and sealed in the borehole by a stuffing box 57 connected to casing 58. The drill string is provided with a transfer sub 49 and a downhole percussive motor 12 fed with fluid (gas or liquid) through a line 63 communicating with the annulus between the pipes 21, 22. The fluid, after driving the motor, entrains cuttings upwardly in the borehole space 14. The cuttings enter ports (54), Fig. 7 (not shown) in the transfer sub which communicates with the bore of the inner pipe 22, and are removed from the pipe 22 via a line 62. The entry of the cuttings into the transfer sub is ensured by a small downward flow of fluid in the borehole space 14 from a line 60. If the pipe 22 becomes congested with cuttings the compressor connection to the line 63 may be transferred to the line 62. (For Figures see next page)
Patent GB-1436157-A (GB)
Title: Method of manufacturing an x-ray tube rotary anode
IPC: H01J35/10
Filed: 1973-10-22
Abstract: 1436157 Making rotary anodes SIEMENS AG 22 Oct 1973 [20 Oct 1972] 49117/73 Heading B3A [Also in Division H1] A method of making a rotary anode 9 for an X-ray tube comprises forming an intermediate metallic layer 21 on a graphite body 10 by means of a fine coating process and subsequently forming at least a major portion of a metal layer 22 on the intermediate metallic layer by a coarse coating process. The layer 21 consists of tungsten and is applied by vapour deposition while the layer 22, which is also of tungsten, is applied by exploding a mixture of metal powder, oxygen and acetylene in a gun directed at the surface to be coarse coated. In an alternative embodiment, Fig. 3 (not shown), the whole of the cathode facing surface is coated, the intermediate layer (26) being of tantalum and the metal layer (27) being of tungsten, which is coarse coated by plasma spraying. Other fine coating processes include electrolytic processes such as fusion electrolysis or certain pyrolytic processes.
Patent GB-1377000-A (GB)
Title: Transmission assembly for a vehicle
IPC: A01D69/02
Filed: 1972-10-26
Abstract: 1377000 Transmission assemblies HUSQVARNA VAPENFABRIK AB 26 Oct 1972 [12 Nov 1971] 49334/72 Heading B7H In a vehicle having wheels 4, 5 mounted on parallel but longitudinally spaced shafts 6, drive is transferred to the wheels via a driven shaft 9 which is in driving connection with the wheels by means of gears 17 which mesh with gear rings 19 in the wheels. A motor (not shown) drives, via a V-belt 11, a worm gear 14 which meshes with a gear 15 rotatably mounted on the shaft. Gear 15 is connectable to the shaft by means of an axially movable, but non-rotatable, sleeve 16 which is controlled by a manual catch. The wheel shafts 6 are mounted on arms 7 which are pivotally mounted on hubs 8 mounted in the vehicle body. Covers 20 are provided at the inner side of each wheel. In the particular embodiment the vehicle is a rotor blade motorized lawn mower, in which the rotor blade is mounted about an axis 2 which is off-set with respect to the vehicle longitudinal axis.
Patent GB-1537058-A (GB)
Title: Ultrasonic generators
IPC: F23D11/34
Filed: 1975-12-04
Abstract: 1537058 Automatic control of current MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 4 Dec 1975 [20 May 1975 19 June 1975 (2)] 49763/75 Heading G3R [Also in Division F4] An ultrasonic transducer is driven by a circuit comprising a D.C. current regulator or switching circuit, in series with a second D.C. regulator of opposite polarity. The regulators are alternately energized at a frequency equal, or close, to the transducer resonant frequency. The switching between the switching circuit or first current regulator and the second regulator is controlled according to the sensed transducer current. As shown, for use in a fuel atomizer, the transducer drive circuit includes a switching circuit (transistor 10) and a current regulator i.e. transistor 11, diode 42 and Zener diode 41. Transistors 10 and 11 are alternately switched by transistor 8. The drive current through transducer 15 is measured, using resistor 16, and fed back to the oscillator input, so as to maintain the drive current i.e. vibration amplitude constant. Upon starting, fuel control valve 105 is opened and the drive current increased for a pre-set period, until liquid on the transducer surface has atomized. In other embodiments, the transducer drive circuit has two series connected, alternately energized current regulators. The transducer may be used in ultrasonic welding or cleaning and comprise a magnetostrictive, electrostrictive or Piezo-electric element.
Patent GB-1315517-A (GB)
Title: Rail-fastening devices
IPC: E01B9/30
Filed: 1970-10-20
Abstract: 1315517 Fastening railway rails W MUNCH 20 Oct 1970 [27 Oct 1969] 49795/70 Heading E1G In a railway rail fastening of the kind employing a bow-shaped clamping spring 1 formed of spring steel rod and caused to clamp the rail foot 3 by a bolt 7 and nut 8, the spring is formed such as to provide, in addition to the parts which respectively engage the rail foot 3 and mounting plate 6, a further part which either overlies the parts 2, as shown, crosses them (Figs. 5-9, not shown), or additionally engages the rail foot, as shown in Fig. 10, this further part being more stiffly sprung than the part initially engaging the rail foot, so that on further tightening of the clamp by the nut 8 the rail is gripped with an increased holding force, as in Fig. 1, or, if the clamp is tightened less than the full amount, e.g. as in Fig. 4, the increased holding force applies after a limited vertical movement x of the rail foot 3. In the Fig. 1 condition, a limited vertical movement y is still permissable. In the embodiment of Figs. 1-4 the clamping spring has end portions 2 contacting the rail foot, loop portions 9 contacting the plate 6, and a loop 10 surrounding the bolt 7 and providing the further part. The Fig. 10 construction is similar excepting that the further part is a downwardly bent loop 15 lying between the parts 14 contacting the rail foot and the bolt 7. In the embodiment of Figs. 5-9 (not shown) loops are formed between end parts (12) engaging the rail foot and transverse parts (13) which cross over the end parts and straddle the bolt (7), a loop being formed on the opposite side of the bolt to provide a part (11) engaging the mounting plate (6). The transverse parts (13) where they cross over the end parts (12) function similarly to the part 10 in the embodiment of Figs. 1-4. (For Figures see next column)
Patent GB-1214050-A (GB)
Title: A system for activating a remote underwater device
Inventor: EHRLICH STANLEY LEONARD
IPC: B63G7/08
Filed: 1968-10-21
Abstract: 1,214,050. Acoustic signalling. RAYTHEON CO. 21 Oct., 1968 [1 Nov., 1967] No. 49910/68. Heading G4F. In a frequency coded system for activating a remote underwater device, a receiver is arranged to respond only to the presence of at least one "assertion" frequency f A , f D  and to the absence of other "negation" frequencies f B , f c . The transmitter (Fig. 2A, not shown) may comprise four oscillators each coupled via respective AND gates to two amplifiers feeding transmitting transducers. The AND gates are arranged so that one transducer first transmits frequencies from two of the oscillators whilst the second transducer later transmits frequencies from the other two i.e. providing the logical complement of the first signal. Receiver.-In Fig. 2B the receiving transducer 50 is housed in a pressure proof lead zirconate titanate sphere and its output is separated by filters 56-59 into four channels 60-63 corresponding to the frequencies of the four oscillators in the transmitter. After detection and further filtering at 71-74 the outputs of channels 60 and 62 are fed to AND gate 79 together with the outputs from channels 61 and 63, after inversion at 76, 78. AND gate 79 thus only provides an output following reception of the first signal from the transmitter i.e. in the presence of frequencies f A  and f D  and the absence of frequencies f B  and f c . After a delay due to one shot multivibrator 82, a signal is supplied on one input 97 of a further AND gate 84 for a period determined by a second multivibrator 83. If, at this time the complementary second signal is received from the transmitter, then an output from AND gate 80 will pass AND gate 84 so as to operate a relay, motor, radio transmitter, valve or to detonate an explosive. The system may be arranged to transmit different codes corresponding to various control functions.
Patent GB-1484160-A (GB)
Title: Handling softened toner images
IPC: G03G15/20
Filed: 1974-11-19
Abstract: 1484160 Electrostatographic fixing XEROX CORP 19 Nov 1974 [26 Nov 1973] 49966/74 Heading G2H [Also in Division F2] A heated roll fusing apparatus comprises a roll 31 including a heat conductive core 32 covered with a porous layer 36 which is impregnated with offset preventing material. A thin, deformable outer layer 38 which allows the offset preventing material to pass through to its outer surface is supported by layer 36 and receives the offset preventing material therefrom, forming a barrier to toner material on the image being fused. A threaded collar 42 and flange 40 hold layer 36 in position and means may be provided to separate roll 31 from a backup roll 44 when not in use. Materials for the components are specified.