baber/WOPTO huggingface dataset:
Patent GB-1109681-A (GB)
Title: Polymers
IPC: C08F2/18
Filed: 1965-05-21
Abstract: Copolymers with high impact strength comprise 64-94% of a substituted or unsubstituted styrene, 35-5% of an ester, amide or nitrile of acrylic or methacrylic acid and 1-25% of a mixture containing 35-80% polyisoprene and 65-20% polybutadiene, all percentages being by weight.  The polymerization is preferably carried out by heating the above compounds in the presence of a catalyst, chain terminator and a suspending agent in an aqueous suspension at a temperature between 60 DEG  and 150 DEG  C. under autogenous pressure for up to twelve hours.  The styrene is preferably an alkyl styrene such as a -methyl styrene or ethyl styrene or a halostyrene, and the acrylic compound is preferably acrylonitrile.  The catalyst preferably is a radical producer such as benzoyl peroxide, the chain terminator an alkyl or aryl mercaptan or a low molecular weight polymer of a -methylstyrene. Compounds such as methyl cellulose, ethyl cellulose, polyvinyl alcohol or a potassium salt of a styrene-maleic anhydride copolymer are used as suspending agent.
Patent GB-807012-A (GB)
Title: Improvements in laminated upholstery panels and like articles
Inventor: BENTLEY REGINALD ERNEST
IPC: A47C27/08
Filed: 1954-07-24
Abstract: 807,012. Laminates. FISHER & LUDLOW Ltd. July 11, 1955 [July 24, 1954], No. 21674/54. Class 140. [Also in Group XIV] An upholstery cushioning pad consists of a base sheet 12, e.g. of calico, impregnated with thermo-plastic resinous material, preferably polyvinyl chloride, and a cover sheet 13 of polyvinyl chloride or other thermoplastic material with or without a fabric backing, the sheets being bonded directly together, by highfrequency welding or steam-heated dies, along spaced lines 14 whereby pockets 15 are formed into which padding is subsequently inserted.
Patent GB-723324-A (GB)
Title: Improvements in the cooling of two-stroke internal-combustion engines
IPC: F01P1/02
Filed: 1951-09-14
Abstract: 723,324. Cooling two-stroke engines. JAMESON, J. L. Sept. 15, 1952 [Sept. 14, 1951] No. 21680/51. Class 7 (2). [Also in Group XXVI]. In a two-stroke engine of the kind employing a two diameter piston 4, 5 in a two-diameter cylinder, one diameter forming the working cylinder 2 and the other comprising an aircompression cylinder 3 supplying scavenging and charging air to the working cylinder, the piston is hollow and its interior is open to a chamber, such as the crank chamber 9, from which the compression cylinder extends, the chamber having control valve means, for example a rotary valve, operated to cause cooling air to pass into the chamber through the piston interior, and over the wall of the compression cylinder before being discharged. The cylinder 3 has an air inlet port 11, which may be connected to a compressor (not shown) and an outlet port 12 that communicates through a transfer duct 13 and a valve 14 with the working cylinder 2 ; the ports 11, 12, are controlled by a sleeve valve 15. The crank chamber embodies an air inlet, controlled by the engine actuated rotary valve, which is opened as the piston moves towards T.D.C. so that air is drawn into the crank case ; the smaller diameter part 4 of the piston is formed with a port 19 and its associated cylinder part 2, is provided with a discharge port 20. The rotary valve is closed when the piston moves towards B.D.C. so that the air is trapped and caused to circulate in the crankcase and piston and hence cool these members. When the ports 19, 20 coincide the air escapes. The engine operates with solid injection, spark-ignition or compression-ignition.
Patent GB-737346-A (GB)
Title: Improvements in counterbalancing mechanism for vertically sliding windows
Inventor: YOUNG WILLIAM
IPC: E05F11/42
Filed: 1953-08-06
Abstract: 737,346. Sash balances. YOUNG WINDOWS, Ltd. Aug. 5, 1954 [Aug. 6, 1953], No. 21714/53. Class 20 (3). A constant counterbalancing mechanism for a vertically sliding window, e.g. a half-drop window having a fixed outer frame a which accommodates in the bottom half a fixed pane b, the top half being closable by a vertically slidable glazed frame c as shown, comprises a spindle e rotatable in a casing d on the middle of the frame a and helically threaded to receive a non-rotatable nut f, one end of the spindle e having fast thereon a pinion g, which meshes with one of a pair of racks h, h<SP>1</SP> secured to the sides of the frame a, and the other end of the spindle, having loosely mounted thereon one member of a dog clutch l, the other member n, of which, fast with the spindle e, has a pinion o meshing with the other rack h<SP>1</SP>. A compression spring q, surrounding the spindle e, has one end anchored to the nut f and the other to the clutch member l thereby holding the clutch members l, n normally engaged. Upon raising, or lowering, the frame c the nut f travels to the left, or right, along the rotating spindle e to increase, or decrease, the compression and torsion of the spring q, the force of the spring acting on the nut f imparting a torque on the spindle which tends to oppose the downward movement of the window. The pitch of the thread e<SP>1</SP> of the spindle is increased from left to right in order to maintain uniform balancing force. The torque of the spring can be adjusted by inserting a rod r through a slot m in the casing d and engaging its end in one hole l<SP>1</SP> of a plurality of holes in the clutch member l and moving the latter laterally to disengage the dog teeth of the clutch, whereupon the torque can be increased, or decreased by raising, or lowering, the window, and re-engaging the clutch teeth. To lock the window a key k accommodated in a case j for the sprocket j is pushed to engage between the teeth of the latter. If desired the spindle e may be rotated by a hand lever, or by gearing and power means.
Patent GB-1294786-A (GB)
Title: A pneumatic or hdyraulic piston and cylinder having a device for damping the piston stroke
IPC: F15B15/24
Filed: 1971-04-19
Abstract: 1294786 Fluid-operated piston and cylinder devices; cushioning stroke MECMAN A B 19 April 1971 [13 Feb 1970] 21840/71 Heading F1P An hydraulic or pneumatic piston and cylinder has an end wall 1 having a cylindrical cavity 5 within which is mounted a sleeve 12 having teeth 14 which are engaged by a toothed wheel 15 to move the sleeve 12 to any desired position in the cavity 5. This sleeve 12 serves to damp the piston stroke when the seal 10 of a piston projection 6 engages the inside of the sleeve, the fluid then being able to flow to the exhaust 7 through a passage 8 restricted by a needle valve 9. Hence the part of the stroke which is damped can be varied by adjusting the position of sleeve 12 in cavity 5.
Patent GB-401248-A (GB)
Title: Improvements in or relating to heating radiators operated by hot water circulation
IPC: F24H3/00
Filed: 1933-08-03
Abstract: 401,248. Gas radiator stoves. HAYWARD, F. H., Mortimer Works, Kimberley Road, Willesden Lane, London. Aug. 3, 1933, No. 21877. Convention date, Aug. 24, 1932. [Class 126.] In a gas radiator stove comprising a radiator 10 with an adjacent heating apparatus, the latter consists of a helical coil 13 heated by a burner 27 and connected to the radiator by unions 11 and 12. The upper convolutions 23 of the coil are spaced apart to allow the flue gases to escape into the enclosing chamber 18, the insulated lower part of the coil being carried by a chimney 20, formed as an extension of a lower bracket 17. Baffle plates 24 may extend across the interior of the coil. In a modification the heating coil is disposed between a pair of radiator sections.
Patent GB-1331039-A (GB)
Title: Flame retardant phosphine oxides for cellulosic material
IPC: C07F9/53
Filed: 1972-05-10
Abstract: 1331039 Flame retardant phosphine oxides BURLINGTON INDUSTRIES Inc 10 May 1972 [12 July 1971] 21891/72 Heading C2P [Also in Division D1] Novel compounds of Formula I: where R is hydrogen or C 1-6  alkyl, X is hydrogen or methyl, and R 1  and R 2  are methyl, ethyl or propyl, may be prepared by reacting a di-(C 1-6  alkyl) phosphine oxide with acrylamide or methacrylamide, and reacting the intermediate formed, with a suitable carbonyl compound, e.g. formaldehyde. The intermediate 3-(dimethylphosphinyl) propionamide is isolated. The compounds of Formula I may be used as flameproofing agents for cellulosic materials.
Patent GB-771778-A (GB)
Title: Automatic gain and amplitude balance control system for hyperbolic radio navigation receivers
IPC: G01S1/24
Filed: 1955-07-29
Abstract: 771,778. Radio navigation; automatic gain control. SPERRY RAND CORPORATION. July 29, 1955 [Aug. 2, 1954]; No. 21928/55. Classes 40(5) and 40(7) In a loran receiver for measuring the time interval between two trains of pulses of equal repitition rate transmitted respectively from spaced A and B stations by matching the A and B pulses displayed on a cathode-ray tube, the amplitudes of the displayed A and B pulses are automatically balanced and stabilized by applying negative A and B video pulses, Fig 2 U, to a gating circuit 350 together with coincidal positive gating pulses, the sampled A and B pulse outputs being applied sequentially to storage capacitors 352, 353 respectively by a relay 130, 131, operated by a square wave (recurrence frequency equal to half the system recurrence frequency), derived from the timing circuits so that the amplitudes of the resultant negative D.C. voltages across capacitors 352, 353 are proportional to the amplitudes of the A and B pulses. When the amplitudes of the A and B pulses are different there appears a relay contact 130 a square wave voltage BB, Fig. 2, whose phase and amplitude depend upon the relative amplitudes of the D.C. voltages and this voltage BB is applied through a D.C. amplifier 472, 479, 487 to the R.F. amplifier 15 of the receiver 12 to balance the amplitudes of the A and B pulses; a diode 494 prevents the balance control voltage BB from going positive. The voltage BB is also applied to an integrating circuit comprising resistor 498, capacitor 499 and diode 501 such that the amplitude of the resultant negative D.C. voltage AA, Fig. 2, across capacitor 499 is equal to the least negative portions of voltage BB and hence is proportional to the smaller of the received A and B pulses, in the A pulses as shown in Fig. 2 and this voltage AA is applied to control the gain of the mixer 1C and 1F amplifiers 18 of receiver 12. The invention is described as applied to a receiver of the type disclosed in Specification 761,524 and U.S.A. Specification 2,651,033 and 2,732,549 in which the gating pulses are first aligned manually with the received A and B pulses by conventional pulse matching on a cathode-ray tube having selectable slow, medium and fast timebase sweeps and the A gating pulses are then synchronized automatically as described in Specification 668,777, the timing of the A and B gating pulses being controlled as described in Specification 644,579.
Patent GB-963268-A (GB)
Title: Improvements in or relating to apparatus for detecting low frequency alternating current
Inventor: OVENDEN RAYMOND EDWARD
IPC: G01R19/18
Filed: 1961-06-16
Abstract: 963,268. Detecting current DE HAVILLAND AIRCRAFT CO. Ltd. Sept. 17, 1962 [June 16, 1961], No. 21932/61. Heading G1U. In an apparatus for detecting low frequency alternating current there is included a means for modulating the alternating current at a selected frequency, an A.C. amplifier for amplifying the modulated current and an indicator which responds to the amplified modulated current. The apparatus is particularly intended to detect immediately the rotation of a part of an aircraft engine, this part being arranged to drive a tacho generator to provide an A.C. signal whose frequency is a function of the angular velocity of the part. The frequency may for example be in the range 0. 06 to 75 c.p.s. The alternating signal is applied at the terminals 1 of the test circuit and its voltage peaks are limited by the arrangement of the capacitor 2 and the diodes 3 and 4 before it is applied to the transistor switch 5, embodying a transistor T3. A transistorised multivibrater 6 also has an output applied to the switch 5 in such a way as to modulate the low frequency input, the modulating frequency being in the range 2-3 kc./s. The modulated signal is passed to the amplifier 8 containing the transistors T4 and T5 and a power output transistor T6, and the output from this is used to light an indicator bulb 10. A modified circuit is shown in Fig. 2, accompanying the Complete Specification (not shown) in which the switch circuitry 5 is transformer coupled to the amplifier, and a more involved amplifier is used.
Patent GB-396556-A (GB)
Title: Improvements in and relating to the underpinning of bridges and like structures
IPC: E02D27/48
Filed: 1932-08-04
Abstract: 396,556. Pile driving. MAUNSELL, G. A., 4, The Mall, East Sheen, London. Aug. 4, 1932, No. 21941. [Class 68 (ii).] An adjustable support for a hydraulic jack J used for pressing a pile C comprises uprights U pivoted at Z to base girders T. Vertical adjustment of the jack is provided by alternative holes for a pin Q which secures the jack to the uprights.
Patent GB-934286-A (GB)
Title: Improvements in and relating to wing tip folding mechanisms
Inventor: HOWARD DENNIS ANTHONY
IPC: B64C3/42
Filed: 1961-06-16
Abstract: 934,286. Folding aircraft wings. ENGLISH ELECTRIC CO. Ltd. June 12, 1962 [June 16, 1961], No. 21948/61. Class 4. Mechanism for folding the tip of an aircraft wing, to vary the wing geometry in flight or for stowage, comprises two worm gear stages, shown together at 36, arranged in series between driving motors 31 and the wing, a worm wheel segment 37 on the wing forming the final gear member, the worm of the second stage and the whole of the first stage being located in the wing tip. The tip may be depressed by 15 degrees from the plane of the wing for subsonic flight, be depressed further to be at right angles to the plane of the wing for supersonic flight, and be turned through a further 20 degrees for stowage. In the Figure the motors 31 drive two parallel sets of double worm gears 36 through a differential 32, each set engaging a segment 37. The wing and tip have forward, centre, and rear spars 2, 3, 4, and 12, 13, 14, respectively, the latter being pivoted to brackets 22, 23, 24, on a wing rib 7, the whole hinge being enclosed in a fairing 30. Pressure fluid conduits 8 in the wing and 18 in the tip communicate through rotary pipe joints 28 the fluid operating motors 31 and the jacks 16 of the tip trailing edge control surfaces 15. Provision may be made for locking these surfaces in neutral position when the tip is depressed. Hydraulic jacks 38 operate bolts 39 to lock the tip in any of its three positions.
Patent GB-997002-A (GB)
Title: Improvements relating to electrically conductive devices and methods of making the same
IPC: B23K15/00
Filed: 1962-06-06
Abstract: 997,002. Ornamenting. UNITED AIRCRAFT CORPORATION. June 6, 1962 [June 7, 1961], No. 21960/62. Heading B6G. [Also in Division H1] A conductive path is produced on the surface of a non-conductive base material in a limited region by exposing said base material to a reducing agent at least in the limited region to be rendered conductive and simultaneously exposing said limited region to a relatively narrow heat-producing beam to effect heating in said limited region only and reaction between said material and agent in said region. As shown (Fig. 1), an electron beam apparatus or other device for producing radiant energy is employed wherein a cathode 10 and anode 12 are provided with a suitable power source and an electron beam 14 is produced and focused by focusing means 16. A control device 18 may also be provided to shape or deflect the beam with respect to the workpiece 20. Either the beam or the workpiece may be moved relative to the other. Aluminium oxide may be used as the non-conducting base material. It may be coated with carbon powder suspended in a volatile binder. The beam is moved so that it traces out the desired pattern on the workpiece, the heat from the beam causing the carbon to reduce the aluminium oxide to metallic aluminium. The surface may then be cleaned. A modification of the process is described in which the reducing agent in powder or gas form is caused to impinge at the contact point of the beam by means of a suitable nozzle. Specification 714,613 is referred to.
Patent GB-1358489-A (GB)
Title: Apparatus for loading cavity resonators on tunable velocity modulation tubes
IPC: H01J23/207
Filed: 1972-05-11
Abstract: 1358489 Klystrons; cavity resonators VARIAN ASSOCIATES 11 May 1972 [17 May 1971] 22059/72 Headings H1D and H1W A turnable multicavity klystron incorporates a resonant load coupled to at least one of the cavities, to introduce a frequency dependent amount of loss, and hence change of Q, such that the bandwidth of the tube is maintained substantially constant throughout the tuning range. As described, the second and third cavities of a five cavity klystron (Fig. 1, not shown) are each provided with a series resonant lossy circuit located wholly within the respective resonator. The lossy circuit may, Fig. 8, be in the form of a conductive plate 26 spaced from the cavity wall 27, and supported from an adjacent wall of the resonator by an arcuate arm 28 which is formed by a stainless steel member sandwiched between a pair of copper segments, the whole being coated with a layer R L  of lossy material, e.g. an Al/Cr/Co/Fe alloy, and the plate 26 having a concave, serrated surface (Fig. 9, not shown) to inhibit multifactoring. Alternatively, Fig. 11, the lossy circuit may be in the form of an apertured copper plate, cut at 39, to provide a slotted ring with lossy material 41 coated on its inner surface.
Patent GB-222492-A (GB)
Abstract: 222,492. Goldberg, M. M. Sept. 26, 1923, [Convention date]. Web feeding and guiding arrangements; line-spacing mechanism. - The Specification as open to inspection under Sect. 91 (3) (a) describes the following web-feeding devices in connection with a cash register for printing items, totals, and other data upon a voucher issued and for printing totals upon a record strip retained in the machine. The voucher is served from a strip which passes from a supply roll under a guard 116, Fig. 10, (Cancelled), and past the item wheels 111. Immediately before itemprinting the voucher strip is fed forward one space by the rollers 117, 118, of which 117 has a ratchet feed 120. During total-printing the voucher strip is first fed to move the printed items forward past a member 212 which prints a special line, and secondly after the total is printed, to move the voucher to the severing mechanism. For this a second ratchet feed for roller 117 comprises a ratchet 215, Fig. 8, (Cancelled), and a pawl 214 camactuated from shaft 188. The record strip 144, Fig. 8 (Cancelled), which is tensioned by a spring plate 238 passes over an autographic table 235 to a receiving roll 237 supported by an arm 243 having a pin 247 normally engaged by a slot 246 in a spring-pulled latch 245. To remove the strip from the roll 237 the latch is disengaged and the arm 243 is moved clockwise until a second pin 248 on the arm 243 is engaged in in the slot 246 to retain the roll 237 elevated. The receiving roll 237, Fig. 13 (Cancelled), is geared to a wheel 250 carrying a ratchet 252 operated by a pawl 253 carried on an arm 254 fast on shaft 251 together with an arm 255 connected bv link 256 to a segment 257 operated by rollers 258, 259 and cams 260, 261 on shaft 84. A pawl 262 prevents retrograde movement of the receiving roll. This subject-matter does not appear in the Specification as accepted.
Patent GB-387250-A (GB)
Title: Improvements in devices for cleaning boiler and like pipes
IPC: B08B9/02
Filed: 1932-08-09
Abstract: 387,250. Pipe-cleaners. BRENDLIN, A., 15, Obere Beamtenkolonie, Knapsack, Germany. Aug. 9, 1932, No. 22308. [Class 99 (ii).] In a pipe-cleaner of the kind comprising a collapsable body formed of a number of helically bent resilient wires a each carrying a scraping coil d of steel wire, the wires a being supported between end members b, c, the coils d are made with an internal diameter substantially equal to the external diameter of the wires a and the pitch of the convolutions thereof is such that the active portions of the coils will be disposed substantially at right-angles to the direction of movement of the tool. The end members b, c may be urged towards each other by a spring.
Patent GB-1465692-A (GB)
Title: Preparation of derivatives of cyclobutane and/or cyclobutene
IPC: C07C13/32
Filed: 1973-05-10
Abstract: 1465692 Hydrocarbyl derivatives of cyclobutane and cyclobutene SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 8 May 1974 [10 May 1973] 22362/73 Heading C5E Alkylidenecyclobutane derivatives having the general Formulae I, II, III and IV and cyclobutene derivatives having the general Formulae V and VI in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> each individually represent a hydrogen atom or a hydrocarbyl group, R<SP>9</SP> represents a hydrocarbyl group; and (a) R<SP>5</SP> and R<SP>8</SP> represent a primary or secondary alkyl group, R<SP>6</SP> and R<SP>7</SP> a hydrogen atom, a primary or secondary hydrocarbyl group; or (b) R<SP>5</SP> and R<SP>6</SP> each individually represent a hydrogen atom, R<SP>7</SP> represents a primary or secondary hydrocarbyl group having at least 2 carbon atoms and R<SP>8</SP> a primary or secondary hydrocarbyl group, or R<SP>6</SP> and R<SP>7</SP> together may form part of a cycloaliphatic ring having 4, 5, 7 or more than 7 carbon atoms or a 2a,3,6,6atetrahydrocyclohexene ring; or (c) R<SP>5</SP> and R<SP>6</SP> or R<SP>7</SP> and R<SP>8</SP> in the Formulae I, II, III and IV, together with the carbon atom to which they are bound, may form a cyclobutane ring, the remaining two R groups having the possible meanings given in (a) and (b); are prepared by contacting an alkene R<SP>5</SP>R<SP>6</SP>C = R<SP>7</SP>R<SP>8</SP> with an allene R<SP>1</SP>R<SP>2</SP>C = C = CR<SP>3</SP>R<SP>4</SP> or with a 1-alkyne HC # CR<SP>9</SP> in the liquid phase in the presence of a dissolved Lewis Acid derived from a group IIIA element, Ti, Sn, Sb, Ta, Rh, Fe or Zn. The Lewis Acid is preferably an alkyl aluminium halide. Those compounds of the Formula I to IV which are alkylidene spirohydrocarbons, and compounds of the Formulae V to VI which are alkyl-substituted cyclobutene derivatives or fused bicyclic hydrocarobns are claimed per se.
Patent GB-336962-A (GB)
Title: Improvements in joints and couplings for pipes and tubes
IPC: F16L19/06
Filed: 1929-07-22
Abstract: 336,962. Perrett, I. G. July 22, 1929. Stuffing-box joints.-The joint comprises a tapered packing-ring g of soft material and one or more split rings f of harder material, which close upon the pipe a as they are forced into the conical socket c<1> by bolts i or nut j. The joint is shown applied to a T-piece one limb of which is closed by a conical stopper k carrying packing k<1>, and loosely connected to a wing-nut d. The split ring may be flat, dished or of V-section and a number of dished rings may be used between soft rings. The inner edge of the split rings may be serrated.