baber/WOPTO huggingface dataset:
Patent GB-835070-A (GB)
Title: Improvements relating to the manufacture of articles by reproducing a lace or perforated pattern in plastic material
IPC: B44F11/00
Filed: 1957-07-30
Abstract: 835,070. Moulding plastic tablecloths, doyleys &c. BUXTOM PLASTICS CORPORATION. July 30, 1957 [Sept. 5, 1956], No. 24177/57. Class 87(2). A method of making tablecloths, doyleys &c. of plastic material comprises making a model composed of successive layers of a backing 1, modelling clay 2 and a lace or perforated pattern 3, inserting a plurality of pins 6 into the model so that they project from the pattern 3, applying cement to the pattern to obtain a negative cast 7 of the pattern with perforations formed by the pins 6 and using this cast to mould the article. When making the model the clay 2 beneath the perforations of the pattern 3 may be removed by a graving tool 4. After moulding, the article 15 may have its surface trimmed by passing it between a roller 10 and guide bar 11 so that it is sliced by a horizontally adjustable knife 12. The roller 10 and bar 11 may be vertically adjustable and sheets of emery cloth may be placed on either side of the article 15 to ensure a firm grip by the roller 10 and bar 11.
Patent GB-781036-A (GB)
Title: Improvements in or relating to electromagnetic switching devices for taximeters
Inventor: HAUPT WILHELM
IPC: G07B13/00
Filed: 1955-08-23
Abstract: 781,036. Electromagnetic switches; protective cut - out arrangements. KIENZLE APPARATE GES. Aug. 23, 1955, No. 24230/55. Class 38 (5). Energization of a relay coil 1 attracts a plunger 5 to the right and opens contacts 8, 9 in the coil circuit, the plunger being latched in its operated position by a spring-biased latch 13 pivoted at 14. To prevent overheating of the coil should the contacts fail to open, a bimetal switch 3 mounted in heat-conducting relation with the coil eventually opens a further pair of contacts (Fig. 3, not shown), connected in the coil circuit.
Patent GB-1125008-A (GB)
Title: Time delay circuit
IPC: H01H47/18
Filed: 1966-06-01
Abstract: 1,125,008. Road traffic signals on vehicles. TUNG SOL ELECTRIC Inc. 1 June, 1966 [4 June, 1965], No. 24477/66. Heading G4Q. [Also in Division H3] In a delay circuit, capacitor 14 is normally charged from supply 2 over a path including resistor 10, diode 12, resistor 6 and lamp 8, the resistance 6 being sufficiently large to prevent the lamp lighting. Closure of switch 4 reverse biases diode 12 and capacitor 14 commences to discharge until the potential across resistor 18 switches trigger circuit 20, 24 to short circuit resistor 6 and allow lamp 8 to light. The circuit may be used to give delayed actuation of a vehicle brake light. In a modification, Fig. 2 (not shown), the resistor 6 is replaced by a relay coil (28) and the switch 4 is replaced by a push button (4<SP>1</SP>) which is shunted contacts (32, 36) on the relay. Actuation of the button (4<SP>1</SP>) then actuates the relay until the expiry of the delay period when the transistor switch circuit operates to short it out. The two transistors 20, 24 may be replaced by the equivalent four layer element.
Patent GB-713297-A (GB)
Title: Apparatus for launching rocket-bombs from aircraft
IPC: B64D1/04
Filed: 1949-10-24
Abstract: 713,297. Rocket magazines. ROBERT, R. A. Oct. 24, 1949 [Oct. 29, 1948], No. 24520/52. Divided out of 713,241. Class 9(2) In apparatus for the launching of rocket bombs from an aircraft, the rocket bombs are arranged in a vertical row and move downwards, the firing of a rocket being effected through its electric firing circuit by the next adjacent rocket above it reaching a pre-launching position. Thus on pressing the trigger 145 to close the switch 140 the motor 48 is started and drives the rockets 88<SP>2</SP> and 88<SP>1</SP> downwards. At the same time the firing resistor 116 is energized by the contacts 122 and 123 in the outlet of the rocket magazine touching fingers carried on the rocket 88<SP>2</SP>. For the top rocket electrical contact is made via the arms 108' and 109<SP>1</SP>. To release the whole row of rockets in an inert condition the button 133 is pressed thus breaking the supply to the. motor 48 and the contacts 122 and 123, but energizing the electromagnet 147 which withdraws the hook 148. Specification 713,241 is referred to.
Patent GB-1305111-A (GB)
IPC: G02B27/00
Filed: 1970-05-21
Abstract: 1305111 Luminescent materials and uses thereof WESTERN ELECTRIC CO Inc 21 May 1970 [26 May 1969 19 Jan 1970] 24560/70 Heading C4S [Also in Division H4] In a display apparatus a visible last beam is modulated, e.g. in intensity by an electro-optic, magnetic-optic or acoustic-optic device, and subsequently deflected by an acoustic-optic device across a phosphorscent screen. A single acoustic-optic device may serve both to modulate and deflect the beam. The screen is said to eliminate the problem of "speckle" which arises when a laser beam undergoes pure reflection from a screen, and enables a black and white display to be produced from coloured laser light. Thus a phosphor with a white emission may be chosen, the laser beam being entirely absorbed, or the phsphor and laser may be matched so that the phosphor emission or a part of the laser beam which is reflected together give white light. In the latter system the laser beam must have a wavelength of 4950  or less to give a true white and argon cadmium ion lasers are referred to. A suitable phosphor is α 3-x-y  Ce x  Gd y  # 5-z  Ga z  O 12 , where α is Y, Lu, or La or a mixture thereof; # is Al which may be partly substituted by In or Sc; x is 0À001 to 0À15 (preferably 0À005 to 0À10); Y is 0 to 2À999 (preferably 0 to 2À1) and z is 0 to 3À0 (preferably 0 to 2À25). In particular, white phosphors are obtained with Y 2À99  Ce 0À01  Al 5 O 12  and also for Y = 0; 1 # z # 3. In Y 3 Al 3 O 12 , there may be partial or total substitution of Ga for Al and/or Gd for Y. Various specific phosphors of the above types are instanced. Many organic phosphors are listed with particular reference to Rhodamine and 4-amino-1,8-naphthal-p-xanylimide and derivatives thereof. Particulate mixtures of differently coloured phosphors may give an overall white emission. Partial reflection of the laser beam may be accomplished with their coatings, reflective backings or incorporation of, e.g. MgO or talc. Incorporation of U/V or blue to blue converting phosphors such as pyrelene or 7-diethylamino-4-methyl coumarin derivatives gives substantially the same effect as reflection but without speckle. Organic colourants included may be in the form of photoluminescent organic dyes or pigments. Pigments may be formed by dissolving a dye in an organic resin solution which is condensed, and the dye may be absorbed on a colloid which may take the form of gel fibres or particles of high m.w. polymers. Organic phosphous includes pyrelene, fluoresceen, cosin, Rhodamine B, Rhodamine 6G, acridine, acriflavin, napthalene red auromine-0, 4 amino, 8, napthal p-exhylimide, and 7-diethylamino, 4 methyl coumarin, Other dyes include xarthene, azine, oxazine, thiazine, acridine flavin, napthalimide, and coumarin derivatives.
Patent GB-697145-A (GB)
Title: Improved method of impregnating or coating bandage material with medicamental media
IPC: A61L15/44
Filed: 1951-10-22
Abstract: A dressing is prepared by applying a pulpy mass to a carrier and drying it at a low temperature, preferably at reduced pressure.  The mass preferably contains dried bile, pancreas ferments, penicillin and sodium bicarbonate the activity of which materials is not interfered with owing to the use of low temperatures.  Methyl cellulose may be used as a binding agent and may be dissolved in sterile water or methylene chloride and ethyl alcohol.  The carrier material may be gauze, cotton wool or artificial resin foil.  In use the dressing is soaked in sterile water for a few minutes and then applied to the wound.
Patent GB-1303960-A (GB)
IPC: C03B9/12
Filed: 1971-04-19
Abstract: 1303960 Measuring length OWENS ILLINOIS Inc 19 April 1971 [19 March 1970] 24627/71 Heading G4H [Also in Divisions C1 G3 and H1] In an apparatus for making glass articles, the height of a hot glass charge is measured by the number of infra-red detectors activated. The infra-red detectors are arranged behind a multiple array of narrow slits in a box 30, Fig. 1. The output of each detector 36, Fig. 11 is fed via amplifier 80 and precision potentiometer 85 through resistors 86 to summing amplifier 87. The output of the amplifier is proportional to the length of the glass charge, and is fed to a comparator, which can be used to activate an alarm. By supplying the signal to OR gate 82 on line 83 the operation of the system can be checked. In Fig. 1, a hot glass ribbon R from orifice 21 is provided by pressure rollers 22, 23 with thickened regions 24 which are extended into hollow charges C by plungers 27 which are extended with application of air. Mold halves 20 are closed about the charges and air is supplied to the charge interior to shape them to the mold.
Patent GB-1307305-A (GB)
Title: Tennis squash or badminton racket frame
IPC: A63B49/10
Filed: 1970-05-21
Abstract: 1307305 Laminated racket AMF INC 21 May 1970 [1 Aug 1969 16 Feb 1970] 24721/70 Heading A6D A racket frame comprises a flat unitary core 20 of lightweight plastics foam material bounded along the inner and outer peripheral edges by a pair of reinforcing webs 25, 24 of plastics material and sandwiched between a pair of unitary flat metal, e.g. Al, plates 26, 28 on the other edges, the webs and plates being thin relative to the core and being bonded to the core to form a frame of rectangular crosssection, a hand grip 34 being fitted over the butt end of the frame, and a triangular cut-out 16 being formed in the throat portion 12 through the plates and core. As described the core comprises a high compressive strength resin, e.g. epoxy, filled with microbubbles of glass or phenolic material, and may be reinforced by loose chopped or milled fibres. Alternatively a urethane foam may be used. The webs may comprise clothbacked polyethylene or other material having a compressive strength of approximately 4,500 to 20,000 p.s.i. and a tensile modulus less than approximately 1,000,000 p.s.i. Metals other than aluminium may be used to form plates 26, 28 provided they have a minimum yield strength of 50,000 p.s.i. and a tensile modulus of at least 1,000,000 p.s.i. Plates 26, 28 may be reinforced by partial or full plates with or without energy absorbing layers, e.g. visco elastic rubber, between the plates. Layers of fibre glass-reinforced plastics may be interposed between the core and plates 26, 28.
Patent GB-802542-A (GB)
Title: Continuous production of cyclohexanol and cyclohexanone
IPC: C07C45/82
Filed: 1956-08-14
Abstract: A process for the continuous production of cyclohexanol and cyclohexanone by reaction of cyclic amines of which the amino group is attached to at least one six-membered carbon ring, with compounds containing hydroxyl groups, in the presence of a hydrogenation catalyst and, when a carbon ring attached to the amino group is unsaturated, with the addition of hydrogen, which comprises distilling off from the reaction product cyclohexanol and also cyclohexanone or primary amine whichever is in excess after the other has been consumed by reaction therewith to form a high-boiling azomethine-like compound, splitting up the distillation residue by steam distillation into a distillate containing cyclohexanone and primary amine and a residue and returning the distillate to the synthesis.  The residue from the steam distillation may be distilled to yield nitrogenous products which can also be returned to the synthesis.  Preferably, the amount of steam is chosen so that an azeotropic mixture of primary amine, cyclohexanone and water passes over as distillate. Specified compounds containing hydroxyl groups are water, methanol, ethanol and propanol.  Specified amines are aniline, cyclohexylamine, dicyclohexylamine, N-phenyl-N-cyclohexylamine, diphenylamine and mixtures thereof including those obtainable by the hydrogenation of aniline. Specified catalysts are the metals of the 5th to 8th groups and the heavy metals of the 1st group of the Periodic System and their oxides and sulphides.  The catalysts may be used alone or applied to carriers, such as pumice, silicic acid, silicates, bleaching earths, active aluminas or bauxite.  In examples: (1) the vapours of a mixture of primary and secondary amines obtained by the hydrogenation of aniline and recycled amines are passed in a stream of hydrogen through a heated reaction chamber containing a nickel on pumice catalyst, steam being supplied concurrently in excess to the reaction chamber, the vapours issuing from the reaction chamber are condensed, water is separated and the organic phase distilled to yield cyclohexanol and unreacted amine, the amine is recycled and the residue is steam distilled in a column to give an azeotropic mixture of cyclohexanone amine and water which is recycled; (2) the residue from the steam distillation step in (1) is distilled to yield nitrogenous products which are recycled; (3) the process is conducted as in (1) but using a catalyst consisting of silic acid and 10 per cent of copper and a higher temperature of operation; the product of the first distillation is cyclohexanone with some cyclohexanol.
Patent GB-915341-A (GB)
Title: Improvements in and relating to mechanical filters
IPC: B01D25/00
Filed: 1959-07-21
Abstract: 915,341. Filters in parallel. MAY, G. July 21, 1959 [July 29, 1958; Oct. 8, 1958], No. 25006/59. Class 46. An annular filter element, Fig. 1, consists of inner and outer moulded rings 22, 24 in which the edges of an annular filter screen 20 are embedded, Fig. 3, and a series of ribs 26 in which radial portions of the screen are likewise embedded. Pairs of oppositely-disposed elements may be assembled in the manner of Fig. 2 around a spider 50, Fig. 14, integral with a threaded plate 46, between which a loose disc 52, the stack of elements may be compressed by screwing the plate 46 into a housing 40 adapted for inward flow. For outward flow an element has the same cross-section as Fig. 3, but 24 is the inner ring and 22 the outer. Preferably, in each case, the contacting outer rings of each pair of elements are joined by cementing or heat-sealing or by employing a binder, to form a two-element unit. In Figs. 10 and 11, elements of a somewhat different shape are shown. The outer ring 76A of element 70A, Fig. 10, has a series of downwardly-directed posts 84 which on assembly are located between corresponding posts 84B on the opposite element. Locking means 94 to prevent circumferential displacements are provided. Ribs 78, Fig. 11 (not shown on Fig. 10), are provided as before, and are on that face on which posts are not provided. The inner ends 80 of the ribs 78 are similarly inter-located and similarly provided with locking means. Radial displacement is prevented by a shoulder 82 at the outer end of each rib. As before, the elements may be modified for outward flow, and facing elements may be joined together in pairs.
Patent GB-158936-A (GB)
Title: Improvements in and relating to locomotives and the like
IPC: B61F1/14
Filed: 1919-10-13
Abstract: 158,936. British Thomson - Houston Co., Ltd., (General Electric Co.). Oct. 13, 1919. Axle-trucks and bogies; underframing of bodies. -In a method of mounting the bcdies of electric locomotives as described in Specification 129,449 for overcoming the side-pressure of the wheels against the rails each end of the car-frame is carried by a pair of rollers resting upon a pair of oppcsitely inclined surfaces on the truck-frame. As shown, the rollers 27, 28, carried by the carframe 30 coact with the surfaces 23, 24, of members 21, 22, carried by the truck-frame 20 and produce a constant centring effort on the carframe. Specification 128,434, [Class 79 (iii), Motor vehicles, Arrangement &c. of parts of], is referred to.
Patent GB-800211-A (GB)
Title: Improvements in or relating to rotary compressors, pumps or motors
IPC: F04C18/12
Filed: 1955-09-01
Abstract: 800,211. Rotary pumps and motors. BREWER, C. E. Aug. 31, 1956 [Sept. 1, 1955], No. 25139/55. Class 110 (2). In a rotary pump or motor of the Rootsblower type, one of the rotors 17 is provided with side flanges 22 having exhaust ports 23, the casing 10 being provided with inlet and exhaust ports 13, 14 communicating with inlet and exhaust ports 25, 26 respectively which are disposed in the cover-plates. One of the side flanges may be detachable or alternatively each rotor may be provided with a flange at one end only. One or more lobes 20 may be detachably secured to the rotor by spring clips or dovetailed thereto and locked in position by dowels or pegs. Each lobe may be made of non-ferrous or other material having a low coefficient of friction or provided with inserts of such material. The ports 13, 14 may be disposed in the coverplates and provided with non-return valves as desired.
Patent GB-302980-A (GB)
Title: Improved adjustable centrifugal sprayer
IPC: B01F15/00
Filed: 1927-09-24
Abstract: 302,980. Bendixen, N. Sept. 24, 1927. Rotary apparatus.-A cen. trifugal sprayer for liquids or mixtures of liquids or semiliquids used for ageing, blending, sterilizing, homogenizing. emulsifying, or treating the liquids with gases, rays or chemical emanations, comprises a rotating body into which the liquid is fed having one or more outlets closed by gauze or perforated material so that it is broken into a number of fine jets or streams. In the form shown in Figs. 1 3 and 4, liquid is led through a conical inlet d into a body a provided with a number of radial passages b closed by a gauze cylinder e retained by a ring secured to the body by a bayonet joint h. In a. modification, Fig. 6, the body comprises twin spaced discs a<1>, a<2> provided with radial vanes f and carrying on their periphery a gauze cylinder e. The fineness of the spray may be varied by interchangeable gauze cylinders and by varying the speed of the apparatus.
Patent GB-596652-A (GB)
Title: Improvements in optical film-strip projectors
IPC: G03B21/10
Filed: 1944-12-15
Abstract: 596,652. Optical-projection apparatus. EALING, F. J., and DUFAY-CHROMEX, Ltd. Dec. 15, 1944, No. 25252. [Class 97 (i)] An optical film-strip projector has a film gate comprising a plate 16, with a projection aperture, and a single vertically movable bar 29 with a pawl 32 pivoted thereon and pressed by a fine wire spring 33 so as to engage, through a slot 24 in the plate 16, the film perforations and to feed the film during a downward movement of the bar 29, but to trail over them during an upward movement and to be lifted clear of the film at the end of such movement by a ramp 35 at the end of the slot 24, the extent of the downward movement of the bar 29 being determined by an adjustable stop fixed to the bar and movable in a slot in a flange of the plate 16. The stop is screw-threaded and is adjusted by being inserted into alternative holes in the bar 29. The film strip is clamped, in the gate, between glass plates which are forced apart, during film feeding, by a cam surface on the bar 29. The sprockets 18 are provided for initial film threading. Specifications 229,572, [Class 97 (i)], and 596,653 are referred to.
Patent GB-1343735-A (GB)
Title: Refractory iron-base alloy and articles or parts made therefrom
IPC: C22C38/00
Filed: 1971-04-19
Abstract: 1343735 Refractory iron-base alloy SOC DES ACIERIES DU MANOIR-POMPEY 19 April 1971 [29 Jan 1971] 25266/71 Heading C7A A refractory iron-base alloy contains 0À5-0À2% C, 23-30% Cr, 30-40% Ni, 0À6-1À5% Mn, 1À0-1À8% Si, 0À5-1À3% (Nb + ¢ Ta), 0-1À00% Ti, 0-0À3% Mo, 0À04-0À2% N, not more than 0À05% (P + S), the balance being essentially iron, and the composition satisfying the equation:- 30 x C% + Ni% + 0À5 x Mn% + 16 x N% = Cr% + 0À5 x (Nb + ¢ Ta)% + 3À5 x Ti% + 1À5 x Si% + Mo% + 11 Œ 2. The alloy is stated to have high resistance to creep, thermal shock, thermal fatigue, and inter-granular oxidation, for example between 600-1250‹ C, and to be suitable for furnaces.
Patent GB-803989-A (GB)
Title: Sublimation process and apparatus
IPC: C01G43/04
Filed: 1945-09-28
Abstract: <PICT:0803989/III/1> Sublimation apparatus comprises a condenser having a protruding member housed within a heating unit, a container for the material treated within the protruding member, a liner and a baffle within the condenser, sealing means between the container and the liner, and means to reduce the pressure in the apparatus.  As shown, removable electric heater 2 surrounds member 8 enclosing boat 9 containing the material to be sublimed.  The condenser 11 has a removable liner 21 and spiral baffle 26; cooling coils 23 surround the condenser; an expanding sealing ring 27 is interposed between the boat 9 and liner 21.  Vacuum is applied to the apparatus through pipe 12 connected to liquid air or liquid nitrogen traps and vacuum pumps including a diffusion pump 31. When all the material has sublimed, cover 24 is removed and liner 21 withdrawn and replaced by another liner.  The apparatus is suitable for use in the purification of uranium chloride; pressure is first reduced without heating to degas the charge and then heat is applied.  Uranium chloride condenses in crystalline form on spiral baffle 26 which is spaced from the cooled condenser surface and so rises in temperature to 300-400 DEG  C. Aluminium chlorides and iron chlorides may also be sublimed in the apparatus described.
Patent GB-1009635-A (GB)
Title: Amplifiers e.g. for regulated power supplies
IPC: G05F1/567
Filed: 1964-06-19
Abstract: 1,009,635. Automatic voltage control. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 19, 1964 [June 28, 1963], No. 25385/64. Heading G3R. [Also in Division H3] A circuit for converting the balanced output of a differential amplifier to an unbalanced signal without loss of common mode rejection comprises a complementary pair of transistors connected in series with the balanced signal from the differential amplifier fed to their bases. The figure shows a circuit for stabilizing filtered direct current at terminals 3a, 3b by means of a compound emitter follower 1 controlled by an amplifier 2. Assuming an increase in potential between the output terminals 4a, 4b, the increase in base voltage of transistor Q1 is compared with the potential of a Zener diode 10 so that the resulting balanced signal at 12, 13, after amplification by a further differential amplifier comprising transistors Q3, Q4, provides a positive voltage at 19 with respect to 20. The collector currents of NPN transistor Q5 and PNP transistor Q6 are thus increased, diverting current away from the base of NPN transistor Q7 and hence correcting for the increase in output voltage. Diode 17 provide a temperature compensating D.C.bias between transistors Q5 and Q6. Resistor 22 provides over current protection. The operation is stabilized by a capacitor 25.
Patent GB-187586-A (GB)
Title: Improvements in locks for vehicle doors
IPC: E05B65/22
Filed: 1922-09-20
Abstract: 187,586. Haag, J. Oct. 21, 1921, [Convention date]. Latches, sliding.-The sliding latch of a vehicle door is retracted from the exterior by a rotary handle the spindle of which carries a follower 5, Fig. 1, engaging a notch 4 in the side of the latch, an arm working in a recess in the outer face of the door, and an indicator at its inner end to show in the interior of the vehicle the position of the latch, and retraction of the latch from the interior is effected by a vertically sliding handle 13, Fig. 2, extending through a slot 11 in the latch casing 1 and carrying a notched block 14 acting through a pivoted lever 8 on the latch, which is normally shot by a spring 3. The upward movement of the interior handle 13 for unlatching may be arrested normally by a pivoted spring-pressed catch 24 releasable by a press stud 31 spaced sufficiently apart from the handle 13 to prevent simultaneous operation of these by the hand of a child. In modifications, the catch may terminate in an unenclosed thumb piece, or operated by an independent thumb piece which may be mounted in a fixed guard arranged verticallv in front of the handle 13.