baber/WOPTO huggingface dataset:
Patent GB-1491606-A (GB)
Title: Process for the preparation of aliphatic beta-ketoesters
IPC: C07C69/716
Filed: 1975-05-22
Abstract: 1491606 Aliphatic #-ketoesters AGFAGEVAERT AG 22 May 1975 [10 July 1974] 22168/75 Heading C2C [Also in Division G2] Aliphatic #-ketoesters are prepared by condensing a dialkylketone with a dialkylcarbonate in the presence of sodium hydride in a basic, aprotic, dipolar solvent at 20‹ to 100‹ C. The solvent may be pyridine or an acid amide, e.g. tetramethyl urea, dimethylformamide, dimethylacetamide, N - methylformanilide or acetanilide, N - methylphenylmethane or diethyldiphenylurea. Examples describe the preparation of pivaloylacetic acid ethyl ester which may be reacted with a substituted aniline, e.g. 2 - chlor - 5 - [2,4<SP>1</SP> - di - t - amylphenoxybutylamido]aniline suitable as a photographic colour coupler.
Patent GB-921333-A (GB)
Title: An automatic photographic exposure control
IPC: G03B7/085
Filed: 1959-06-29
Abstract: 921,333. Camera diaphragms. REVERE CAMERA CO. (1951 Inc.). June 29, 1959 [July 14, 1958], No. 22183/59. Classes 97 (1) and 98 (1). An automatic exposure control for a camera comprises adjustable diaphragm means having apertures providing openings ranging in size from maximum to minimum, means having a movement responsive to the light intensity of the photographic field, said light-responsive means being movable in one direction to adjust the openings from maximum to minimum size and means for providing an opening of intermediate size when said means moves in the same direction beyond its position providing an opening of minimum size. In the embodiment shown, movement of the coil 10 of a light meter 6 moves a plate 11 having teeth 12 which engage teeth 23, 24 of two diaphragm plates 15, 16 which are thus rotated about two parallel axes 18. Each plate has an arcuate tapered slot 27, 28 and these slots overlap on the optical axis 25 thereby defining the diaphragm aperture size. In Fig. 1 the largest sized aperture is shown but clockwise rotation of plate 11 enables smaller apertures to be formed, the smallest being when parts 31, 32 of the slots overlap. The narrow ends of the slots have enlargements 37, 38 which produce a medium-sized aperture.
Patent GB-1205635-A (GB)
Title: Polymerisation of ethylene
Inventor: GREAVES JEFFREY CHESTER
IPC: C08F10/00
Filed: 1967-05-12
Abstract: 1,205,635. Ethylene polymerization. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 April, 1968 [12 May, 1967], No. 22184/67. Heading C3P. The continuous polymerization of ethylene in two or more zones comprises passing ethylene through a first polymerization zone at a pressure of not less than 1600 atmospheres and a temperature of not less than 125 C. in the presence of a Ziegler type initiator and passing the mixture of polymer and unreacted monomer to a second zone at a pressure of at least 1600 atmospheres and a temperature higher than the lowest temperature in the first zone in the presence of a free-radical forming initiator, the combined conditions of temperature and pressure being such that the polymerization reaction takes place in a single fluid phase and the reaction mixture remains as a single fluid phase until removal from said zone. In the first zone the temperature is preferably from 145 to 220 C., and the residence time is not more than 6 minutes. A suitable Ziegler type initiator is one which causes at least 3,000 moles of ethylene to be polymerized per mole of Group 4A, 5A or 6A metal compound component of the initiator. The Ziegler type initiator which may have a particle size not exceeding 5 microns, may be protracted by polymerizing it in contact with an unbranched α-olefin containing at least 6 carbon atoms. A free radical forming initiator active at the temperature of the first zone, may be introduced into the first zone. Chain transfer agents, such as hydrogen, paraffins or α-olefins, may be present in the zones. In the example, ethylene containing hydrogen as a modifier, is polymerized in a two zone reaction. The Ziegler initiator was formed by mixing in pentamethyl heptane, aluminium diethyl chloride and titanium trichloride, and exposing this mixture to hexene-1, resulting in the formation on the catalyst of polyhexene. The free radical forming catalyst was tertiary butyl perbenzoate.
Patent GB-294943-A (GB)
Title: Vessels for containing gas under pressure consisting of two or more pressure vessels inserted into one another
IPC: F17C1/04
Filed: 1928-08-01
Abstract: 294,943. Benkwitz, P. Aug. 1, 1927, [Convention date] Storing under pressure.-A container for gases comprises nested chambers a, b, c charged and discharged through a valve h connected with the control chamber a each chamber being connected to the next by a valve f, g, opening automatically during discharge when the pressure in the inner chamber falls to that in the outer chamber. The chambers are formed with ribs d, e. The valve h, shown separately in Fig. 3, comprises a closure s on a stem operated by a hand-wheel p; a second closure v is slidable on the stem and is pressed on to its seat by a spring u; during charging both valves are lifted from their seats. The valves f, g are lift valves sliding on stems which may be displaced to hold the valves open as required during charging.
Patent GB-1329765-A (GB)
Title: Synthetic organic polymer textile filaments
IPC: D01D11/00
Filed: 1971-04-19
Abstract: 1329765 Ribbed filaments SOBICO Inc 19 April 1971 [20 March 1970] 22338/71 Heading B5B [Also in Division D1] Filaments (e.g. of a polyamide) having a core 1, a plurality of longitudinal ribs 2 extending along the core and a plurality of notches 3 distributed along the longitudinal ribs, the angle formed between the median plane of each notch and the axis of the filament being between 10 and 60 degrees, may be prepared from ribbed filaments by cutting the notches at the required angle with the aid of a rotating cutter or rotary milling cutter. Preferably the core 1 is substantially circular in cross-section, the ribs 2 are in the form of lobes and the notches 3 are helicoidally distributed along and about the filament. The filaments may be twisted into yarns and ropes or made into fabrics having anti-slip properties (see Division D1)
Patent GB-757457-A (GB)
Title: Rocket control
Inventor: FLEURY ROGER FRANCIS LOUIS
IPC: F02K9/86
Filed: 1954-07-30
Abstract: 757,457. Correspondence control systems. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. July 30, 1954 [Sept. 10, 1953], No. 22348/54. Class 40(1) [Also in Group XXVI] A rocket 1, Fig. 1, is fed with a liquid fuel and a liquid oxidizer, for example kerosene and nitric acid, by pipes 5, 6. The effective area of the discharge nozzle 2 is varied by movement of a body 3 actuated by a motor 11 controlled in response to the rate of flow in one or both pipes. A flow-meter 4 acts on a device 9 to produce a voltage which is compared in a device 14 with a voltage dependent on the position of the body 3. The direction of rotation of the motor 11 is determined by the polarity of the resultant voltage, which latter is applied to the coil 19b. Fig. 2 shows a flow-meter comprising a convergent-divergent pipe 22 with a rotor 23 arranged in a cavity 25 so that half the blades project into the flow. The blades are permanent magnets so that alternate north and south poles are presented opposite a core 26 and an E.M.F. is generated in the coil 27 with a value and frequency dependent on the rate of flow. The E.M.F, may be rectified and amplified. Alternatively, the blades are not permanent magnets, and modify by their rotation the characteristics of an inductance coil.
Patent GB-211827-A (GB)
Title: Electrical oil-break switch
IPC: H01H33/75
Filed: 1923-09-05
Abstract: 211,827. Forges et Ateliers de Constructions Electriques de Jeumont. Feb. 22, 1923, [Convention date]. Oil switches; arc-rupturing devices; cases.-In oil break switches a cylinder of insulating material containing oil is surmounted by a vessel provided with baffles to permit the escape of gases without the ejection of oil, a chamber being provided within the main cylinder in which the arc is broken between a movable rod and a stationary tubular contact which allows arc gases to be expelled into a closed vessel forming a check or dashpot. The main cylinder A, Fig. 1, of insulating material is closed at the upper end by a metal cap I communicating with the cylinder through openings QR and being provided with baffles J, K and a lift valve I. One lead M of the circuit is connected to the metal cap I which has a central opening G accommodating the axially-movable contact rod E. The lower end of the cylinder E is closed by a metal plate C carrying a chamber D open at its upper end and containing an insulated contact tube F connected to the other circuit lead N. The lower end of the tube F projects into metal gauze P in the bottom of a closed vessel H. Air is trapped in the vessel H and when the circuit is broken by withdrawal of the rod E arc gases are forced through the rod F and gauze P into the vessel H. Continued motion of the rod E causes its end to leave the chamber D when the oil therein is forced against the extremity of the rod E completing, if necessary, the extinction of the arc. Gases trapped in the vessel H now escape through the upper cap I. In Fig. 2, two simultaneously operated switches are shown producing two breaks per pole or phase, the contact tubes F<1>, F<2> being led to a common vessel H<1>. For use with extra high tension circuits the form shown in Fig. 3 is employed, in which a number of chambers D' - - D<3> surround the first chamber D, these chambers comprising truncated metal cones d<1> - - d<3> fitting upon insulating barrels x<1> - - x<3>. Means for renewing the oil in the cylinder A are provided, the entry pipe r<1> being in communication with the contact tube F and the outflow pipe r<2> terminating in an annular trough in the plate C, the chambers D - - D<3> having side openings communicating with this trough. The tubes r<1>, r<2> form supports for the cylinder A. This cylinder is strengthened by metal bands separated from each other for insulating purposes and embedded in insulating material a' which also holds a number of insulating petticoats a in position.
Patent GB-262691-A (GB)
Title: Improvements in and relating to means for attaching buttons to garments
IPC: D05B3/14
Filed: 1926-09-10
Abstract: 262,691. Hertelendy, A. de. Sept. 10, 1926. Sewing-needles.- The threads 12 to which a button 10 is secured to a fabric is connected with the button prior to its attachment by looping it through several needle devices 14 having means such as barbs 17 at their points to enable them to be drawn through the fabric. These needles are mounted in a paper or like box 18 with two diaphragms 19, 20. Pressure is applied to the button, as shown in Fig. 4, to press the needles 14, the heads of which engage in the holes 11 in the button, through the fabric 22 of a garment &c. and through a piece of fabric 23. The box 18 is removed and the thread loops and needles 14 drawn through the button by drawing the piece of fabric 23 away from the fabric of the garment. The button is secured by tying the thread loops below the button and by tying the thread ends together, the needles 14 being removed by severing the thread. The thread may be assembled with the buttons and needles, as in Fig. 3, at the button factory or elsewhere, or the buttons may be purchased in the usual manner and used with the needles.
Patent GB-865599-A (GB)
Title: Improvements in or relating to the shrinking or stretching of flexible sheet material
IPC: D06C29/00
Filed: 1959-06-30
Abstract: 865,599. Shrinking or stretching flexible sheet materials. JAMES, S. F. Aug. 20, 1959 [June 30, 1959], No. 22465/59. Class 42 (1). Apparatus for shrinking or stretching flexible sheet material comprises a plurality of narrow material engaging members 26 the upper surfaces of which are serrated to engage the under surface of material to be treated, which engaging members are so supported, interconnected and mounted that, in one position, they can all be held assembled but slightly separated by narrow gaps between adjacent members, from which position they can all be relatively moved to another position in which adjacent members are brought into contact to eliminate the gaps, together with means for pressing the material on to the serrated surfaces of the material engaging members. In the arrangement shown there is a fixed central material engaging member 17 and movable material engaging members 26 each connected to the next adjacent member by pairs of pins 30 such that they can be moved together or drawn apart by segmental sliding plates 18 and 20 operated by links 40 and 42 from crank lever 38. The lever 38 is connected to a spindle 37 connected to an operating handle. The members 26 are slidably mounted in a frame on a supporting plate 11 carried on brackets 10 from a base plate 9. Also mounted on the latter are brackets 47 to which is pivoted an electric iron 52 which can be brought into contact with the material engaging members 26, as the pressing means.
Patent GB-290087-A (GB)
Title: Improvements in, and relating to, pneumatic and like conveyors
IPC: B65G53/56
Filed: 1927-08-26
Abstract: 290,087. Dorman, Long, & Co., Ltd., and Kirby, M. R. Aug. 26, 1927. Pneumatic conveyers. - In pneumatic conveyers provided with a multiple way connection, the casing 4, Fig. 1, of the connection is provided with an additional nozzle 34 which may be used for effecting the transfer of fluid through the nozzles 8, 10 of the pipe lines which are disconnected from the nozzle 14. When the conveyer is used for removing coal from the heading 37, a pipe 11 is connected to the nozzle 8 which is in communication with the nozzle 14 and pipe 40 leading to the collector 41. Headings 38, 39 from which coal is not being conveyed are ventilated by connecting pipes 12, 13 to the nozzles 9, 10 and connecting the nozzle 34 by a pipe 35 to a ventilating fan or pump 36. A pipe 45 connects the fan to a settling chamber 46 where any coal dust mixed with the air is extracted therefrom. The connector pipe 17 is connected to the nozzle 14 by a flexible coupling 18 which may be of the kind described in Specification 280,619, [Class 99 (i), Pipes and tubes, Joints &c. for.]. The adjustment of the pipe 17 is effected by a screw 29. Specification 211,616, [Class 78 (iv), Loading &c.], also is referred to.
Patent GB-1040964-A (GB)
Title: Improvements in and relating to safety harnesses in vehicles
IPC: A44B11/25
Filed: 1963-06-06
Abstract: 1,040,964. Safety harness. R. H. SVENSSON. June 6, 1963 [June 15, 1962], No. 22516/63. Heading A3V. [Also in Division E2] A safety harness for releasably securing the occupant of a seat of a vehicle comprises a first strap 14 having means 15 at one of its ends for the attachment of the strap adjacent one side of the seat, a releasable buckle 12 secured to the other end of the strap and located adjacent the hip of the occupant when the harness is in use, the buckle comprising a buckle member to which said other end of the first strap is secured, an arm 20 pivotally connected at one end to the buckle member and a manually releasable catch 34 for fastening the opposite end of the arm to the buckle member, and a second strap 10 comprising two portions releasably connected together by an adjusting buckle 38 to permit longitudinal adjustment of the second strap, one of the portions having means 11 at one end thereof for attachment to another part of the vehicle, the portion, when the harness is in use, extending over the shoulder of the occupant, diagonally over the thorax of the occupant, over and around the pivoted arm 20 of the releasable buckle, and over the lap of the occupant, and having its other end secured to the adjusting buckle 38, the other portion of the second strap being secured at one end thereof to the adjusting buckle and its other end to means 41 for anchoring to the floor of the vehicle, the arrangement being such that when the pivoted arm is released from its fastening position the second strap is releasable from the buckle without releasing the adjusting buckle. In the construction shown the member of the releasable buckle is L-shaped, the pivoted arm 20 being attached to one leg 18 and the other leg 19 having a slot 16 which receives the strap 14. The catch is pivoted to the leg 19 and is biased by a spring 36. The adjusting buckle is as described in Specification 939,112.
Patent GB-242042-A (GB)
Title: Improvements in stone dressing machines
IPC: B28D1/26
Filed: 1924-09-24
Abstract: 242,042. Moir, Sir E. W. Sept. 24,1924. Dressing by percussion.- Percussive tools for dressing stone such as granite are arranged obliquely above the block 1, which is fed towards the tools over rollers 7 by means of a rack 10 on the main table 6. A feeler such as a steel roller 33 is mounted in front of each tool. A turntable 2 on which the block is wedged is mounted on the main table, and is rotated after half the face has been dressed, so as to dress the other half in the opposite direction. The tools are laterally and vertically adjustable by means of screws 25, 17, and their downward obliquity is limited by a bar 28.
Patent GB-1216295-A (GB)
Title: New enzyme inhibitors and their preparation
Inventor: FLORENT JEAN EDMOND MARIE
IPC: C12P1/04
Filed: 1969-05-02
Abstract: 1,216,295. Medicines comprising enzyme inhibitors. RHONE-POULENC S.A. 2 May, 1969 [3 May, 1968], No. 22641/69. Heading A5B. [Also in Division C3] Pharmaceutical compositions comprise enzyme inhibitors having anti-trypsin, antifibrinolytic and anticoagulant properties (see Division C3) in a carrier suitable for intravenous, intramuscular, oral or percutaneous administration.
Patent GB-277318-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B1/02
Filed: 1927-08-29
Abstract: 277,318. Booth, W. N. Sept. 7, 1926, [Convention date]. Suspension-spoke wheels; spokes, securing and adjusting; attaching to permanent hubs.-A detachable wheel is secured to a permanent hub by means adapted to increase the tension of the wheel-spokes. In the construction shown, the wheel comprises two crossed sets of spokes 3, 4 rigidly secured to the rim 1 and with coned heads engaging tapered holes in flanges 28, 29 of the detachable hub 11. The latter comprises a radial flange 13 secured by bolts 17 to a flange 18 of the permanent hub 10, to which a brake-drum 22 may also be attached, and a coned shoulder 32 engaging a coned seating 31 on the hub 10. The flange 13 is normally off-set so as to be constrained by the nuts 19 of the bolts 17 whereby the wheel spokes are additionally tensioned when the flange 13 is forced against the flange 18. In assembling the wheel, the spokes are entered from the hub and the rim is displaced to either side of its normal position to receive radial tenons 26 on the outer ends of the spokes whereby the initial tension is set up in the latter. Caps closing outer ends of hubs.-The inner hub 10 is closed by a thin metal cap 37, Fig. 5, pressed into position, and an outer hub-cap 34, Fig. 2. 36, Fig. 5, screwed on the hub 10 is formed with an enlargement 33 to engage the outer hub.
Patent GB-278163-A (GB)
Title: Improvements in and relating to combination locks
IPC: E05B37/02
Filed: 1926-09-14
Abstract: 278,163. Parsons, G. W. Sept. 14, 1926. Locks, permutation; padlocks; hasp locks.-Locks, of the kind having a bolt which is spring- pressed to locking position and is released by a. slide embodying a number oi indicating discs, have a fixed stop engaging peripheral notches on rotatable members co-operating with the discs. In a hasp lock, Fig. 3, the bolt d is actuated by a member n having a shaft q, handle r and pointer t and carrying a member m having a sleeve o and pointer u, the members being recessed' to engage a stop f. The shaft q and sleeve o are housed in a sliding block p carrying a dial s. In a padlock, Fig. 4, the shackle 17 is secured by a bolt 13 actuated by members 5 engaging a stop 9, the members having pointers and discs as in a hasp lock. In both cases, the bolt can be pressed, back by the hasp or shackle to enable the lock to be closed without moving the handle.
Patent GB-1326136-A (GB)
Title: Casting concrete piles
IPC: E02D5/38
Filed: 1971-04-19
Abstract: 1326136 Concrete piles COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL 19 April 1971 [15 Dec 1970] 22706/71 Heading E1H Reinforced concrete piles, cast in situ are formed with an extra thickness of concrete at least where the pile passes through a top soil layer T 1  deleterious to the concrete. In forming a pile, a steel tube 11 closed by a detachable concrete shoe 12 and provided with an encircling ring 13 which may be freely slidable between upper and lower abutments 14, 15 is driven into the ground by a rammer, pile driver or vibrator. The upper abutments 14 thereby force down the ring 13 as the tube is sunk to form an annular space 20. Ironwork reinforcement 16 is inserted through tube 11, shoe 12 is detached and concrete 19 cast through the tube as the latter is withdrawn, the concrete being rammed or vibrated as it is cast. The ring 13 remains at the bottom of space 20 to seal it off until contacted 'by lower abutments 15 which draw it out with the tube.
Patent GB-857967-A (GB)
Title: Improved process and apparatus for crimping textile yarns
Inventor: NESBITT-DUFORT TIMOTHY
IPC: D02G1/02
Filed: 1958-07-16
Abstract: 857,967. Crimping yarns; twist-tubes &c. SCRAGG & SONS Ltd., E. May 29, 1959 [July 16, 1958], No. 22768/58. Classes 120(2) and 120(3). Yarn-crimping apparatus comprises means for feeding yarn from a bulk supply, a "setting" zone in which a medium such as heat, steam or a solvent or chemical swelling or softening agent is applied to the yarn, a "fixing" region in which a current of air reduces or removes the effects of the setting medium, a falsetwist device which imparts twist to the yarn in (i.e. running back to) the setting zone and also drives or carries fan blades producing the air current, and means for pulling the yarn through the apparatus and winding it on a support. As shown, yarn passes from a package 1 over pins 4, 5 to a tensioner 6, through a heater 8 and a twist-tube 11 driving a fan 9, and is withdrawri by a driven roller 12 and wound on a package 14. The heater may comprise a curved and shanneled surface (contacted by the running yarn) in a metal plate which is heated by an insert electrical element or a current of oil: the temperature may be automatically regulated to compensate for changes in ambient temperature, mains voltage and/or yarn speed. The Provisional Specification refers to the application to the yarn of air jets independent of the false-twister. Specification 453,320 is referred to.
Patent GB-277001-A (GB)
Title: Improvements in or relating to processes for the extraction of precious metals from ores, residues and metallurgical products of various kinds containing the same
IPC: B03C1/015
Filed: 1927-08-30
Abstract: 277,001. Krupp Grusonwerk Akt.- Ges., F. Sept. 6, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Preliminary treatment followed by magnetic concentration. - Precious metals are extracted from ores, residues, &c. by heating the ores &c. in the presence of or with the addition of magnetizable materials to a temperature below that necessary to melt the mass, and subjecting the product, after grinding if necessary, to magnetic separation. The charge may also have added to it other materials such as iron-sulphur compounds, iron-arsenic compounds, or calcium-sulphur compounds. If the material to be treated is already capable of magnetic separation, such a separation is preferably carried out before the heating process, the residue being then treated as above.