baber/WOPTO huggingface dataset:
Patent GB-1165704-A (GB)
Title: Elektromagnetic Control Apparatus
Inventor: JAYAWANT BHALCHANDRA VINAYAK
IPC: F16C39/06
Filed: 1965-08-27
Abstract: 1,165,704. Electric railways. NATIONAL RESEARCH DEVELOPMENT CORP. 8 Sept., 1966 [27 Aug., 1965], No. 36929/65. Heading B7L. [Also in Divisions B8, F2, G1, G3 and H2] An electromagnetic levitation system supports a ferro-magnetic element 12 by means of an electromagnet 11 whose energizing coil 13 is supplied with A.C. through a capacitor 14 such that a resonant condition is provided whereby movement of the element, towards and away from the electromagnet, causes the current to decrease and increase respectively to provide a stable position for the element, together with damping means which exert a force, dependent on the rate of change of separation distance, on the element. The damping force is provided by a sheet of copper partially surrounding the element, the sheet being slotted so that the eddy currents follow long horizontal paths but short vertical ones to give heavy damping of vertical movement. Alternatively the system shown in Fig. 7 can be used where movement of element 12 alters the output of photo-cell 28 and this output is differentiated and applied to amplifier 26 to provide a current in coil 25 which may buck or boost the magnetic field produced by coil 13. The current in coil 13 may be varied to alter the separation between element 12 and electromagnet core 10. In a further embodiment, the photo-cell signal may be used to alter the frequency of the A.C. supplied to the coil and thereby alter the effective stable position, Figs. 4 and 8 (not shown). Alternatively the value of the capacitance in the supply circuit may be varied. In a modification, Fig. 5 (not shown), the element may form a stationary structure, and the electromagnet, together with the necessary circuit elements, form a moving structure which can be propelled by a linear motor or air jets. The element may have copper damping sheets or be connected in the circuit shown in Fig. 7. The element may have a vane attached for measuring the flow of gases, Fig. 6 (not shown) with a mirror provided on the element which reflects light on to a photo-cell to provide a pulse for each revolution. The device may also be used as a lifting jack by sequentially using a different size of capacitor in the supply circuit. In both these cases the element is rotatable and the device forms a friction-free bearing.
Patent GB-801480-A (GB)
Title: Improvements in or relating to photographic type composing machines
IPC: B41B17/30
Filed: 1954-12-22
Abstract: 801,480. Photographic type-composing. MERGENTHALER LINOTYPE CO. Dec. 22, 1954 [May 27, 1954], No. 37045/54. Class 98(1). A photographic type-composing machine of the kind controlled by a coded tape which has character identification signals based on the binary number system and which is prepared in keyboard operated apparatus having two characters on each key, viz., a shift character and an unshift character interchangeable by a shift key, said two characters having complementary numbers assigned to them, has incorporated therein a font of characters which co-operates with a number of shutters selected by the signals on the tape for exposing the characters singly to a light source, the characters on the font being arranged in a series of intersecting horizontal and vertical rows and in two groups on opposite sides of a vertical median line, one group representing shift characters and the other group representing unshift characters, the corresponding shift and unshift characters being arranged in the same horizontal row and in vertical rows spaced symmetrically on opposite sides of the vertical median line. The arrangement of characters on the font is shown in Fig. 1. The keyboard unit is of the kind described in Specification 754,648 [Group XVI]. As shown in Fig. 2, each character is located within an " em " square 16, the centre of which is indicated at 13, by right hand bearing lines 14 and base lines 15. The selected character is illuminated by a light source 20, Fig. 3, by means of the selection system described in Specification 801,481. The light from, the selected character passes through an intermediate lens (not shown), an imaging lens 21, lenses 22, 23 which are adjustable to vary the point size of the projected image, and then, after reflection at a mirror 24, passes through a projection lens 25 to form an image on the film 26. For text composition the mirror 24 is moved step-wise to space the projected characters until the movement of the mirror carriage 27, as measured by a grid plate 28 which is carried past and continually interrupts a light beam to a photoelectric cell 29, is equal to the character width as indicated by the marks below the line 15, as described in the Specifications referred to above. As shown in Fig. 5, the plate 28 carries a series of marks . of progressively greater spacing corresponding to different point sizes of projected character. The photoelectric cell 29 can be moved so that the beam of light falling upon it is intersected by any chosen series of marks according to the desired point size.
Patent GB-431376-A (GB)
Title: Improvements in or relating to electric lamp caps
IPC: H01J5/58
Filed: 1933-12-01
Abstract: 431,376. Electric incandescent lamp caps. GROTE, E. R., Spencer Hill Road, Wimbledon, London. Dec. 1, 1933, No. 37095/34. Divided out of 431,332. [Class 39 (ii)] A cap adapted to be secured to, and project laterally from, a tubular electric lamp is provided with a stem 2 which has a flare 3 terminating in a flange 4 at its upper end, the flange 4 providing a flat face substantially parallel to the wall 7 of the lamp so that a rigid connection between the lamp body and the cap can be made by disposing cement 6 between the flange and the wall of the lamp. The flange is preferably provided with a peripheral rim 5. The internal diameter of the stem 2 of the cap is such that a space is left around the pip 8 of the lamp envelope, thereby avoiding the transmission of strain to the pip. The stem is preferably provided with indentations 10 or an annular groove on opposite sides of a diameter to co-operate with retaining means in the lamp holder. The lamps may be mounted in holders of the kind described in Specifications 411,849 and 411,957, comprising upper and lower insulating blocks forming a housing for a short length of loosely disposed spring wire and a bared conductor wire which are disposed chord-wise across apertures adapted to receive the lamp caps and grip the ends of the caps inserted between them. The cap is preferably made of metal, but may be made of moulded insulating material with a bottom plate or disc of metal. Specifications 304,882, 336,418, [both in Class 39 (ii)], and 431,332 are referred to.
Patent GB-1070720-A (GB)
Title: Portable lamp
IPC: F21L4/00
Filed: 1965-06-11
Abstract: 1,070,720. Electric battery lamps. O. W. SCHOTZ. June 11, 1965, No. 37123/66. Divided out of 1,059,662. Addition to 1,059,662. Heading F4R. [Also in Division H2] The switching device of a portable battery lamp for underwater use comprising a sealed waterproof casing containing at least one battery and an electric bulb as described in Specification 1,059,662 consists of a contact ring 130 connected to one side of the battery and a contact disc 105 connected to a flange on the shell of the bulb 84, a contact strip 454 extending from the disc 105 to a bent back contact member 300, the end of which is normally spaced from the ring 130, a member 462 slidable in a passage in the casing and bearing on the member 300 and an actuating means 304 in the form of a sliding plate having an operating button 306, the plate bearing on a spring 458 resting on a resilient cap 460 sealed to the casing. The underside of the plate 304 has lands 316, 318, 320 against which the end of the spring 458 rests so that as the button 306 is moved to the right from the " off " position shown, the land 318 engages the spring which bears on the cap 460 and the member 462 so that pressure on the button 306 serves to flash the torch. Further movement to the right causes the land 316 to engage the spring, pressing down the cap and the member 462 so as permanently to close the circuit between the member 300 and the ring 130.
Patent GB-1147086-A (GB)
Title: Supersensitised photographic silver dye-bleach materials
IPC: G03C7/28
Filed: 1966-08-19
Abstract: 1,147,086. Silver dye bleach materials. EASTMAN KODAK CO. Aug. 19, 1966 [Aug.19, 1965], No.37231/66. Heading G2C. Silver dye bleach materials contain in an emulsion layer thereof either (i) a super-sensitizing combination of a symmetrical thiacarbocyanine or dibenzothiacarbocyanine dye which sensitizes the silver halide to the red region of the spectrum and a compound of formula:- wherein R and R 1  are alkyl, Q, Z 2  and Z 1  represent the non-metallic atoms necessary to complete an heterocyclic nucleus containing 5 or 6 atoms in the heterocyclic ring, A is O or S and n, m and d are each 1 or 2, as the supersensitizing compound or (ii) a super-sensitizing combination of a symmetrical oxacarbocyanine or dibenzo-oxacarbocyanine dye which sensitizes silver halide to the green region of the spectrum and a compound of formula:- wherein R<SP>1</SP> and R<SP>1</SP> 1  are alkyl or substituted alkyl, R 2 <SP>1</SP> is alkyl or aryl, d and n are each 1 to 3, X is an acid anion and A<SP>1</SP> and B<SP>1</SP> are Cl or Br, as the super-sensitizing compound, there being neither a carboxyalkyl nor an alkyl sulphate substituent in the cationic portion of the thiacarbocyanine or oxacarbocyanine dye or their dibenzo derivatives. The oxacarbocyanine and thiacarbocyanine dyes may contain betaine groups.
Patent GB-1115117-A (GB)
Title: Cartridge-actuated instrument
Inventor: UDERT KARL-ERNST
IPC: B25C1/10
Filed: 1966-08-20
Abstract: 1,115,117. Cartridge-actuated instruments. HILTI A.G. 20 Aug., 1966, No. 37400/66. Heading F3C. [Also in Division B4] A cartridge-actuated instrument, for example, a firearm, comprises a main part 10 having a cartridge chamber 11 therein and a closure or breech 19 for closing the cartridge chamber 11. The closure or breech 19 is provided with a recess 20 into which the base 23 of a cartridge 12 is an interference fit. The closure or breech 19 is mounted in a grip 15 which is pivoted to the main part 10 facilitating the urging of the cartridge 12 into the cartridge chamber. The grip 15 is locked to the main part 10 by a hook 17 and a co-operating catch 16. The cartridge is electrically detonated.
Patent GB-1273427-A (GB)
Title: Variable diaphragm device
Inventor: HAMPTON ROBERT WALTON
IPC: G03B7/085
Filed: 1969-07-25
Abstract: 1,273,427. Variable diaphragms. EASTMAN KODAK CO. July 25, 1969 [July 30, 1968], No.37404/69. Heading G2A. In order to limit the amount of light passing through the lens of a camera without using an excessively small diaphragm aperture, a filter mounted at the end of a masking arm is interposed in the light path. As shown, the diaphragm consists of a single vane 3 having a tapered opening. The vane is coupled to a pointer 6 and a coil 7, the coil forming part of a photo-electric lightmeasuring device, so that coil, pointer, and vane all move together. As the tapered opening moves across the exposure aperture 4 of the camera, the amount of light which can enter is varied accordingly. A masking member 5, whose movement about a pivot 11 is controlled by a button 9, cooperates with the diaphragm opening to define the exposure area, and the tip of the member 5 carries a small neutral density filter 10.
Patent GB-1007205-A (GB)
Title: Bulk transporter
Inventor: CARMICHAEL HENRY
IPC: B60P3/22
Filed: 1963-09-24
Abstract: 1,007,205. Tank vehicles. CARMICHAEL & SONS (WORCESTER) Ltd. Sept. 24, 1964 [Sept. 24, 1963], No. 37443/63. Heading B7B. The rear end of a tank 10 has discharge apertures 101 therein, on either side of the partition 11, communicating with a discharge member 12 having a flange 121 to which is bolted a discharge attachment appropriate to the material carried.
Patent GB-972267-A (GB)
Title: Improvements in and relating to vapour generators
Inventor: HEATHCOTE JOHN
IPC: F22B1/02
Filed: 1962-10-03
Abstract: 972,267. Vertical steam boilers. FOSTER WHEELER Ltd. Oct. 3, 1963 [Oct. 3, 1962], No. 37468/62. Heading F4A. A vertical steam boiler comprises a vertical cylindrical shell 10 containing a shroud 22 open at the bottom and closed at its upper end where it encloses steam and water separators 25 and below which heating tubes 12 which are shown straight but which may follow a helical or other shaped downward path are mounted in clusters 27 between inlet and outlet manifolds 28, 29 connected by pipes to inlet and outlet headers 32, 33 to which heating fluid, e.g. steam or another vapour or gas, is supplied through inlets 18 in the shell above the shroud to pipes arranged to form expansion loops passing downwardly through the top of the shroud 22 near the axis of the shell to the inlet headers 32. The clusters 27 form an assembly of non- circular cross-section and according to this invention the shroud is shaped to follow the contour of the assembly, the clearance at points X between the baffle 22 and the shell being a minimum (say “ inch).As shown the clusters are hexagonal or circular and the tubes may be distributed uniformly over the area enclosed by the shroud.
Patent GB-855530-A (GB)
Title: Improvements in or relating to processes for the removal of water from aqueous liquors
IPC: C01D3/12
Filed: 1958-12-11
Abstract: The water content of aqueous systems is reduced by contacting with an organic solvent of limited miscibility with water, which is then treated to remove the water thus taken up, by contacting it with a solid or solution of greater water avidity than the organic solvent. Thus, aqueous solutions, suspensions, dispersions, etc. (referred to as "donors"), are concentrated without employing any heat by transferring water to an acceptor having a lower partial water vapour pressure than the donor by circulating between the donor and acceptor an organic solvent of limited water miscibility, or of limited miscibility with the donor and acceptor.  The acceptor may be a solid which dissolves in the water removed from the donor, or the solid may be in solution from the start.  The organic solvent may be contacted successively with acceptor solution and acceptor solid.  The organic solvent is such that the non-aqueous components of both the donor and the acceptor are insoluble therein.  Suitable organic transfer solvents include: C3-C6 aliphatic alcohols, lower aliphatic ethers, ketones, e.g. methyl-ethyl ketone, monohydric alcohols, e.g. N-butanol, sec-butanol, and N-propanol (which may be employed for concentrating lithium nitrate solutions), C4-C8 aliphatic amines, e.g. n-hexylamine, di-n-propylamine, and more complex oxygenated solvents such as ether alcohols, e.g. butyl"Cellosolve" (Registered Trade Mark).  The spent acceptor liquor may be distilled to recover organic solvent and solid acceptor. Examples relate to the conversion of potassium chloride into potassium bicarbonate by first converting the chloride into the hydroxide by ion exchange, blowing carbon dioxide through the solution to form the bicarbonate, and concentrating the solution to form a slurry by employing sec.-butanol as transfer solvent; solid potassium chloride is used as acceptor, and the potassium chloride solution resulting is converted as above into the bicarbonate.  Sodium bicarbonate may be similarly prepared, employing n-butanol as transfer solvent.  Other examples refer to ammonium sulphate, employing sodium chloride as acceptor and sec-butanol, a mixture of isopropanol and sec-butanol, or methyl ethyl ketone, as transfer solvent; recovery of sylvinite, using end brines as acceptor and secbutyl alcohol as transfer solvent; recovery of potassium iodide, using aqueous calcium chloride as acceptor and isoamyl alcohol as transfer solvent; concentration of potassium hydroxide, using potassium chloride as acceptor and sec-butanol as transfer solvent; and the recovery of pure salt from rock salt, employing solid crude rock salt as acceptor and di-n-propylamine or sec-butanol as transfer solvent.
Patent GB-1128633-A (GB)
Title: Improved honeycomb core
IPC: E04C2/36
Filed: 1966-08-23
Abstract: 1,128,633. Laminates; honeycomb core. HEXCEL CORP. 23 Aug., 1966 [24 Oct., 1965], No. 37823/66. Heading B5N. A honeycomb core structure 10 is formed of corrugated ribbons 12 of material bonded together at adjacent nodes, each ribbon being formed as a composite sandwich structure including a pair of face sheets 16 and a porous core 14 disposed between and secured to the inner surfaces of the face sheets. The face sheets 16 may be metal and the core may comprise generally rigid wire or fibres defining a foraminous construction having spaced voids extending transversely therethrough. If metal wires are used the sheets 16 and core 14 may be secured by diffusion bonding. When the core 14 is a sheet of fabric or fibre glass material the sheets are secured by adhesive. The core may be made more highly electrically conductive than the sheets 16. Thus, the core 14 may be made of copper and the sheets 16 of stainless steel.
Patent GB-1432753-A (GB)
Title: Mechanism for changing fuel elements and control rods in a nuclear reactor
IPC: G21C19/115
Filed: 1974-08-29
Abstract: 1432753 Handling control rods and fuel elements FRIED KRUPP GmbH 29 Aug 1974 [1 Sept 1973] 37828/74 Addition to 1432532 Heading B8H Apparatus for suspending from an overhead traversable hoist, for handling fuel elements and control rods in a nuclear reactor or storage facility, comprises a gripper body movable within a mast (not shown) and having relatively displaceable upper and lower portions 1, 2. The body can be coupled to a selected one of gripping tools for handling the fuel elements or the control rods and has balls 20 in radial holes for engagement with grooves 21 in the gripping tool 24. A sleeve 22 connected with a pneumatic actuator 47, 48 is biased by a spring 52 into a position to lock the balls in engagement with the groove. A further pneumatic actuator 42, 43 has a piston-rod 44 to actuate the gripper arms 32 of the gripping tool 24 or the pin (98) (Fig. 4, not shown) of the gripping tool (82) and is biased by a spring 56 into a position in which the gripping tools are in a closed or load gripping position. The springs 52, 56 are coupled to their respective pistons 48, 43 by rods 49, 45 with the former passing through a bore in the latter. Feelers 77, 78 are mounted on the rods 49, 45, for movement therewith and co-operate with a pivoted lever 72, movable between operative and inoperative positions by relative movement between the upper and lower portions of the body to prevent movement of the actuators during lifting of the gripper body.
Patent GB-1026792-A (GB)
Title: Abdominal support
IPC: A41C1/10
Filed: 1961-10-23
Abstract: 1,026,792. Abdominal belts. J. E. FORBAT. Jan. 23, 1963 [Oct. 23, 1962], No. 37849/61. Heading A3V. An abdominal support for use in pregnancy or like conditions comprises a belt 4 with a medium portion 5 of elastic material with gussets 6 and elastic portions 8A fastened by adjustable hooks and eyelets. Adjustable shoulder straps 12 are attached to rings 13 and to the back parts 8A and are connected by a strip 15 to prevent displacement. The harness may be used to position stocking suspendersl6 and brassieres 17.
Patent GB-1514784-A (GB)
Title: Thermoplastic acrylonitrile copolymers
IPC: C08F220/00
Filed: 1975-09-16
Abstract: 1514784 Copolymers of acrylonitrile and coumarone and/or indene STANDARD OIL CO 16 Sept 1975 [20 Nov 1974] 37995/75 Heading C3P More than 50% by weight of an olefinically unsaturated nitrile and less than 50% by weight of indene, coumarone or a mixture thereof are polymerized. The preferred nitrile is acrylonitrile but alpha-chloracrylonitrile, alpha-fluoracrylonitrile, methacrylonitrile and ethacrylonitrilo are also mentioned. Specified polymerization techniques are bulk, solution, emulsion or suspension polymerization. Examples describe the polymerization of acrylonitrile with indene or coumarone in the presence of dodecyl mercaptan or benzoyl peroxide.
Patent GB-952521-A (GB)
Title: Improvements in or relating to electrical heating mantles
Inventor: GOLDSTAUB HENRY HERBERT
IPC: H05B3/00
Filed: 1961-10-24
Abstract: 952,521. Electrically heated mantles. H. H. GOLDSTAUB. Sept. 19, 1962 [Oct. 24, 1961], No. 38115/61. Drawings to Specification. Heading H5H. A heating mantle has an annular, flexible member around the mouth of a pocket for receiving a flask, such that the member contacts the flask and, if the latter has a smooth surface, prevents the entry of liquids or solids into the gap between the flask and the pocket, or the escape of an inert gas therefrom. The member may be an inflatable rubber or neoprene tube filled with gas or liquid, or a sheet of heat resistant rubber having a central aperture. The heating element is located close to the pocket surface, which is formed of knitted glass yarn, and inert gas may be introduced into the glass wool insulant separating the pocket from a rigid outer casing, a controlled leak acting to switch off the element if the gas pressure falls below a certain value. Specification 812,694 is referred to.
Patent GB-1241065-A (GB)
Title: Selective adsorption process for separating gas mixtures
IPC: B01D53/047
Filed: 1968-08-09
Abstract: 1,241,065. Separating gas mixtures. UNION CARBIDE CORP. 9 Aug., 1968 [9 Aug., 1967], No. 38163/68. Heading B1L. A four bed adiabatic pressure swing bed cyclic process for separating gas mixtures by adsorption comprises taking each of the four beds in turn and in the appropriate time relationship through the sequence of steps shown. Thus, feed is passed by manifold 10 to bed A where impurities are adsorbed and product effluent leaves by manifould 11. Adsorption is discontinued before impurity breakthrough occurs, whereupon feed is switched to bed D, and thereafter in turn to beds B and C before bed A comes on-stream again in the next cycle. After adsorption in bed A has been discontinued, the pressure of bed A is equalized with that of bed B (which is being repressurized prior to coming on-stream) through the discharge end of bed B. Thereafter, bed A is cocurrently depressurized by connecting its discharge end to the discharge end of bed C, thereby purging bed C prior to repressurization of residual sorbate through manifold 12. Bed A is then countercurrently depressurized through its inlet end to desorb and remove sorbate through manifold 12 and afterwards purged by introducing gas from the countercurrent depressurization step of bed D to its discharge end. Bed A is then repressurized partly with gas from the pressure equalization step of bed B, and partly by the recycling of a portion of the product effluent. As described, the process is of particular application to the removal of light hydrocarbons, carbon monoxide and dioxide, ammonia, hydrogen sulphide, argon, nitrogen and water from gas streams consisting principally of hydrogen, but is also of value in separating nitrogen or helium from minor amounts of impurities. A flow sheet is provided (see Fig. 1, not shown) setting out details of the various valves and interconnections necessary. In one example, the beds are each constituted of a first section of active carbon and a second section of calcium zeolite A. The process may also be adapted for use with five beds (see Fig. 3). Reference has been directed by the Comptroller to Specification 1,067,177 and 989,073.