baber/WOPTO huggingface dataset:
Patent GB-938297-A (GB)
Title: Master tracing machine
Inventor: DULEBOHN DAVID H
Filed: 1961-05-01
Abstract: 938,297. Photo-electric line followers. ANDREW ENGINEERING CO. May 1, 1961, No. 15743/61. Class 40 (3). A photo-electric line follower suitable for the control of apparatus reproducing an outline comprises a stand supporting a template carrier capable of movement in one direction and a head support member capable of moving in a second direction at right angles thereto. The template itself is preferably a translucent sheet bearing an opaque outline. The head support member carries a light source below the template carrier aligned with a rotatable sensing head above it. In the optical system a small beam of light from source 41 is directed through the template 15 carrying outline 16 into optical system 42. A small portion of the beam is selected by slit 44 in masking plate 43 and is then divided into equal portions by reflection at prism 46. The two portions are directed into photo-cells 52, 53. Any deviation of the line 16 from the centre of the field of view will produce unequal outputs from the cells which are connected in a bridge circuit. Control voltage from the bridge circuit is applied through amplifier 61 to head control motor which rotates the sensing head in a corresponding direction. The axis of the optical system lies ahead (in the direction in which the outline is being traced) of the axis of rotation and the system is thus able to discover approaching changes in line direction and follow them. A second output from amplifier 61 is applied through phase converter 82 to control the speed at which the outline is being followed. Changes of direction in the outline automatically reduce the speed of the drive motors sufficiently to ensure good tracking. Controlled by cams 62, 63 on the sensing head are followers positioning ball couplings in mechanical integrators 70, 71. These integrators are driven by motor 74 which operates continuously at an instantaneous speed determined by discriminator 82; a feedback path from tachometer 77 prevents the motor running away. The integrated sine and cosine outputs dependant on head movement control the position of rotors in synchrotransmitters 85 and 86. The outputs of the latter are respectively fed to transformers 34 and 25 which function to determine the speed of rotation of motors 33 and 24 in accordance with the output of the transmitters 85, 86. Motor 24 controls the position of the template carrier by means of a lead screw and motor 33, in a similar way, the positioning of the head support member. Outputs at Mx, My and Px, Py are available to control machines in accordance with the outline being followed.
Patent GB-882016-A (GB)
Title: Improvements in or relating to curing agents for epoxide resins
Inventor: MCDOWALI ROBERT
IPC: C08L63/00
Filed: 1957-05-17
Abstract: A curing agent for epoxy resins (i.e. glycidyl ethers of polyhydric alcohols or phenols of an epoxy equivalency greater than 1) comprises a homogeneous liquid mixture of (i) a resin formed from formaldehyde and aniline or a nuclearly substituted alkyl- or chloro-aniline and (ii) a liquid polyoxyalkylene polysulphide polymer.  An optional additive which functions as a curing accelerator is (iii) a phenol. Compounds specified are:-(i) aniline-formaldehyde, (ii) <FORM:0882016/IV (a)/1> and (iii) phenol, resorcinol, phenol-o-sulphonic acid, o-phenyl-phenol, pentachloro phenol, pyrogallol, m-cresol, catechol and phloroglucinol.  Epoxy resins specified are derived from epichlorhydrin and either bis phenol A or a phenol-formaldehyde novolak; the latter resin contains some phenyl glycidyl ether.  In the Provisional Specification there is no need for the curing agent to be a homogeneous liquid, any aniline-formaldehyde resin can be used, and any liquid polysulphide polymer can be used.
Patent GB-840868-A (GB)
Title: Method of producing esters of boric acid or chloroboric acids
IPC: C07F5/04
Filed: 1958-05-16
Abstract: Esters of boric acid are produced by introducing a boron trichloride, tribromide or triiodide into contact with an alcohol or phenol, in the presence of urea or thiourea.  By replacing only one or two chlorine atoms of boron trichloride, esters of chloroboric acids may be obtained.  The alcohols used may be such p  as methyl, ethyl, propyl, butyl, octyl, stearyl or allyl alcohol or cyclohexanol. Polyhydric alcohols such as glycerol and glycols may also be used. Phenols, cresols and naphthols may also be used to form the esters. The reaction temperature is generally below 100 DEG  C., the preferred range being from 30 DEG  to 50 DEG  C.  A preferred method of obtaining boric acid triesters comprises mixing 0.5 to 4 mols. of urea with 3 to 10 mols. of the alcohol and passing 1 mol. of boron trichloride into the mixture. Specification 840,866 is referred to.
Patent GB-493796-A (GB)
Title: Improvements in electric cooking ovens
IPC: F24C15/08
Filed: 1937-06-08
Abstract: 493,796. Linings for electric cooking- ovens. BELLING & CO., Ltd., and BRUNTON, D. M. M. June 8, 1937, No. 15826. [Classes 39 (iii) and 126] The inner metal lining b of an electric cooking-oven is secured in place by a clamp g arranged upon the exhaust tube d which passes from the inner lining to the outside of the oven. A flange d<1> on the exhaust tube is secured to the inner lining by screws e screwing into tapped nuts or washers f welded upon the outer side of the lining. The fixing clamp may be connected to earth.
Patent GB-837455-A (GB)
Title: Spraying apparatus
IPC: B05B13/04
Filed: 1957-05-17
Abstract: <PICT:0837455/III/1> Apparatus for coating a surface with a jellifiable material comprises two vats containing slow-setting compositions having resin bases, the two compositions forming a quicksetting material when associated with each other, two guns for spraying the compositions, the axes of the guns being inclined towards the surface to be coated and meeting at a point above the said surface a conduit connecting each vat with its respective gun, and means for permitting relative movement between the surface and the guns.  As shown, an endless horizontal chain conveyer 10 progresses in the direction of the arrow F.  Plates forming a surface to be coated are positioned at station 11 and pass through station 12 for the spraying of the resin composition, station 13 in which the resin sets and station 14 where they are removed.  At station 12 a carriage (not shown) provided with two spraying guns 17 and 18 reciprocates along guide-rails across the direction of the arrow F. This carriage and the conveyer are connected through suitable transmissions with a common power unit.  The axes of the two guns meet at a point P above the conveyer.  The guns are connected through flexible pipes with separate feeding vats (not shown), containing under pressure resin compositions that are slow-setting in themselves but form a rapid setting mixture.  Each of these compositions may comprise a polyester resin and styrene, one may also include methylethylketone hydroperoxide and the other cobalt octoate. Station 13 includes a tunnel 21 surrounding the conveyer and heated by electrical resistances 22.
Patent GB-277750-A (GB)
Title: Improvements in and connected with apparatus for disinfecting, sterilizing and destroying vermin in clothes or other articles or materials
IPC: A61L2/06
Filed: 1926-06-24
Abstract: 277,750. Dodwell, W. H., and Dunning, W. G. June 24, 1926. Disinfecting-chambers.-Clothes and other materials are disinfected or sterilized by treatment in a container 1 by hot air or by disinfectant vaporized in a recess 2 by an internal electric heater 15 or by a gas or spirit burner 13. The clothes are suspended in a cradle 4 having a perforated bottom and handle 5 and are protected from the radiant heat by screens 16 supported on legs 17. The container 1 may have an outer jacket 6 with outlets 7 and is adapted to be closed by a cover 8 secured by cleats and swivelling bolts 10 and handled nuts 11. The disinfectant is introduced from a container 20 by a tube 21 and stop cock 22. Boiling disinfectant may be supplied by a vessel 23, pipe 26, and tap 27. In some cases the air may be partially exhausted by an air pump 3. Specification 7170/15 is referred to.
Patent GB-437435-A (GB)
Title: Improvements in and connected with locking devices for use in connection with pins, bolts or the like for aircraft assembly and other purposes
IPC: F16B21/18
Filed: 1935-05-31
Abstract: 437,435. Locking bolts, nuts, and pins. HUGHES, G., 9, Warwick Court, High Holborn, London.-(Collis, R.; 169, Holmwood Avenue, Ottawa, Canada) May 31, 1935, No. 15888. [Class 89 (i)] A locking-device for bolts, nuts, and pins comprises a split annular metal or alloy disc 3 with spaced lug-like ends 4 to enable it to be passed over a groove in the pin or bolt, which ends are pressed together to grip the collar about the pin or bolt, or are separated to release it by pinching towards each other a pair of projections 7 located midway between the ends. The pin has circumferential channels 2 to receive the locking-members 3, which may be composed of pewter, aluminium alloy, or brass. Separation of the lugs to effect removal may be effected by tools. The distance between the points 8 is somewhat less than the diameter of the groove. The collar may be reduced between its ends as shown at 9, Fig. 4. The ring tends to fracture upon removal, thereby necessitating a new ring. Additional channels may be provided at one or each end of the pin. The lugs may be bent to produce upstanding free ends and/or apertures may be provided for tools to open the collar. Bolts may be grooved and supplied with rings 3 to lock the nuts.
Patent GB-424390-A (GB)
Title: Improvements in and relating to massage devices
IPC: A61H15/00
Filed: 1934-05-28
Abstract: 424,390. Exercising-appliances. ANDERSON, V. H., 315, Williams Street, East Orange, New Jersey, U.S.A. May 28, 1934, No. 15890. [Class 132 (i)] [See also Group VI] A massage device comprises a foldable frame constituted by arms 8 pivoted on a shaft 9 which carries brackets 15 on which are mounted massage rollers 17. These rollers are preferably made in sections, as shown, tapering towards the middle. An intermediate roller 13 may be mounted on shaft 9. The device may be positioned on a plane surface as shown in Fig. 2, being supported by brackets 1 on which may be mounted anti-skid strips 18, and may be used for massaging the feet and hands. Ears 11 are provided on the arms 8 to hold the device rigid. The device may also be used for massaging the body, for which purpose hand-grips 6 are provided on the arms 8 which are moved parallel to each other. Alternatively a spring may be provided to tension the arms 8, the grips being grasped together against the pull of the spring, thus strengthening the grip of the user.
Patent GB-1197051-A (GB)
Title: Improvements in Wall Brackets
Inventor: NOTTER KENNETH ROY
IPC: A47B57/04
Filed: 1966-04-12
Abstract: 1,197,051. Wall brackets. DESIGN & CONTRACT ASSOCIATES (LONDON) Ltd. 4 July, 1967 [12 April, 1966], No. 15942/66. Heading A4B. A wall bracket comprises an upright element 2 carrying a horizontal arm 4, the element 2 having upper (16) and lower, 22, apertures to receive wall-fixing screws and carrying above the lower aperture 22 a threaded stud 30 fixed to a circular plate 32 which bears on the wall whereby rotation of the stud 30 varies the inclination of the element 2 to the wall. The element 2 is of channel section and the stud 30 threads through a plate 26 secured between the channel sides (14). The adjustment is effected prior to securing the lower fixing screw. The arm 4 comprises two back-toback channels and supports a shelf and/or a drawer unit (34, Fig. 5) having top rails 38 supported on the lower sides 8 of a pair of spaced arms 4.
Patent GB-871149-A (GB)
Title: Fluid flow regulating apparatus
Inventor: CHRYSTAL CYRIL DAVID
IPC: G05D7/01
Filed: 1957-05-21
Abstract: 871,149. Fluid-pressure servomotor control systems. TATE & LYLE Ltd. May 21, 1958 [May 21, 1957], No. 16057/57. Class 135. Apparatus for regulating the flow of fluid through a pipe line 3 comprises an orifice plate 1 sealed on each side to flexible bellows 2, these bellows being adapted to be sealed into the pipe line so that the orifice plate is inserted in the fluid path to be biased by the flowing fluid, a regulator connected to the orifice plate for automatically or manually adjusting the degree of bias by adding to or subtracting therefrom, a regulating valve (not shown) for regulating the flow of fluid in the pipe line, and means responsive to the degree of bias of the orifice plate for setting the regulating valve. The orifice plate 1 is pivoted on one side of the pipe line at 4 and on the other side a regulator comprises a pressure-responsive bellows 6 connected to the orifice plate, the pressure acting on this bellows being adjustable manually by known means or automatically through a liquid level relay or controller as described in prior Specification 679,503. The regulating valve (not shown) in pipe line 3 may be of known kind responsive to a controlled pressure, this controlled pressure being set up, by a leak-off valve 7, 8, in response to the degree of bias of the plate 1. The apparatus may be arranged for maintaining a constant flow and may be fitted e.g. to the outlet of a char cistern for decolorizing sugar liquor.
Patent GB-438969-A (GB)
Title: Improvement relating to gloves
IPC: A41D19/00
Filed: 1934-05-31
Abstract: 438,969. Gloves. CUNNINGHAM, D., and DEMPSEY, J. J., 125, Rue de France, Nice, France. May 31, 1934, No. 16261. [Class 141] A glove is provided with a pocket comprising apiece 1 of material attached to the outer face of the palm by sewing along three of its edges, the fourth edge 6 extending lengthwise of the pahn and providing an opening to the pocket, closable by means of a sliding clasp fastener.
Patent GB-1465040-A (GB)
Title: Components for use in the construction of model aircraft
IPC: B32B21/08
Filed: 1974-04-05
Abstract: 1465040 Wood-foam laminates for model aircraft D A HARDMAN and S KAY 5 April 1974 [5 April 1973] 16299/73 Heading B5N [Also in Division A6] A model aircraft fuselage includes a laminate of thickness less than 10 mm. comprising a sheet of rigid or semi-rigid expanded or foamed plastics, e.g. polystyrene, polyurethane, having an external sheet, board or veneer comprising wood and of thickness not greater than 1 mm., e.g. obeche veneer or plywood. The materials may be bonded by a water-based latex. The laminate may be butt-jointed to build up larger structures. A similar external layer may be present on the other face of the foam. Balsa wood strips may be provided along the edge(s) of the plastics layer. In an embodiment, the fuselage body panels partially comprise two- and three-layer laminates as above, the nose and tail being formed of balsa wood. The laminates may be pre-formed or assembled in situ.
Patent GB-662372-A (GB)
Title: Improvements in and relating to gauges for measuring or checking linear dimensions or shapes
IPC: G01B3/30
Filed: 1949-06-20
Abstract: 662,372. Linear gauges. AKTIEBOLAGET C. E. JOHANSSON. June 20, 1949 [June 21, 1948], No. 16344/49. Class 106 (ii). In measuring devices such as gauge blocks having one or more reference surfaces exposed to wear, each reference surface has one or more grooves of a depth related to the permissible amount of wear of that surface, the amount of wear then being ascertained by inspection of the grooves. Figs 1 and 2 show a gauge block 1 having reference surfaces 2 and 3 provided with grooves 4 and 5. Fig. 4 shows a plug gauge 13 having a groove 14. Fig. 3 shows a gauge having three reference surfaces 7, 8 and 9 provided with grooves 10, 11 and 12, respectively. The grooves may be coloured. For gauges with opposite reference surfaces the maximum depth of the grooves is half the permissible wear of the gauge. For single reference surfaces, as in Fig. 3, the depth of each groove equals the whole permissible wear. The reference surfaces may have additional grooves of depths less than the said maxima.
Patent GB-804957-A (GB)
Title: Discharging static electricity from fluids
Inventor: JUDSON CHARLES ALAN
IPC: H05F3/02
Filed: 1956-05-26
Abstract: 804,957. Discharging static electricity. BIRMINGHAM SMALL ARMS CO. Ltd. April 9, 1957 [May 26, 1956], No. 16357/56. Class 35. Static electricity is discharged from a liquid or gas by passing it through a porous conducting material which is earthed. Preferably the material is porous metal, e.g. stainless steel formed from powder state.
Patent GB-886214-A (GB)
Title: Improvements in portable wringers
Inventor: ESCOTT SYDNEY PERCY
IPC: D06F45/18
Filed: 1960-05-09
Abstract: 886,214. Wringers. PORTSMOUTH AVIA. TION Ltd. Oct. 24, 1960 [May 9, 1960], No. 16387/60. Class 138 (2). A portable miniature wringer comprises two rigid end frames 1, 2 each having two suction cup feet 5, and a pair of rollers 15, 16 composed of material adapted to yield when articles are passed between them. The end frames 1, 2 are of channel section and are rigidly connected by a flat metal bar 18. The rollers 15, 16 are moulded on to spindles journalled in bearings fixed in the end frames 1, 2. The suction feet 5 have bosses 5a mounted on spigots on bifurcated ends of the frames 1, 2. A drip tray 21 having a peripheral flange 22 and spout 23 is also mounted on the spigots with interposed washers 24. The drip tray may be of sheet metal or plastic and the end frames 1, 2 of cast aluminium or pressed sheet metal.
Patent GB-796245-A (GB)
Title: A seat for motor vehicles with a tubular frame
IPC: B60N2/68
Filed: 1956-05-28
Abstract: 796,245. Seats. NSU WERKE AKT.-GES. May 28, 1956 [May 31, 1955], No. 16393/56. Classes 52(2) and 52(4) A seat for a motor vehicle has a pair of side members 1 spaced by a front rail 3 and U-shaped top rail 2, the ends of which are spigoted into the members 1 and the parts are held together by endless bands 8 of rubber or synthetic plastic applied under tension which constitute the seating and back-rest surfaces. A U-shaped rear leg 4 is secured to the side members by bolts. Lugs 5 on the inturned front ends 6 of the side members are provided to locate the seat by engagement with recesses in the floor.
Patent GB-1108310-A (GB)
Title: Derivatives of 6-methylene-tetracycline and process for their preparation
IPC: A61K31/65
Filed: 1965-04-15
Abstract: Novel 6-methylene tetracycline derivatives of the general formula <FORM:1108310/C2/1> wherein X is H or Cl, B is H or Cl and X1 is H or OH, X and X1 being H when B is Cl, and R is amino, o -carboxy (lower, i.e. up to 6 carbon atoms) alkylamino, o -amino-o -carboxy (lower) alkylamino, o  - carboxamido (lower) alkylamino, o -amino-o -carboxamido (lower) alkyl amino or NR1R2 wherein R1 is alkyl of 1-17 carbon atoms, benzyl, phenethyl, cyclohexyl, hydroxyalkyl of 2-4 carbon atoms, o -amino (lower) alkyl, o  (lower) dialkylamino (lower) alkyl; R2 is H or R1; R1 and R2 in combination with the amino group are piperidino, pyrrolidino, morpholino, piperazino, N - methylpiperazino, 2,6 - dimethylmorpholino, N - (b -hydroxyethyl) piperazino or <FORM:1108310/C2/2> and their acid addition and base salts are prepared by reacting a compound of formula <FORM:1108310/C2/3> wherein X, B and X1 are as above defined either with a compound having the formula ZR or its acid addition salt, in which R is as above defined, and Z is H or H2NCH2- in the presence of formaldehyde or paraformaldehyde or, with an addition product of formaldehyde or paraformaldehyde and the compound ZR, and, if desired, forming an acid or a base salt of the product with an inorganic or organic acid or base.  The reaction may be carried out in an aqueous medium to which a water-soluble organic solvent may be added at a temperature from 0 DEG  to 30 DEG  C., the reactants being present in equimolar proportions.  Salts of the tetracyclines may be formed with HCl, H2SO4, H3PO4, CH3CO2H, butyric, palmitic, oleic, citric, gluconic, lactic, tartaric, ascorbic or pantothenic acids, penicillins, succinic half ester of D-(-)-threo-2-dichloroacetamino-1-p-nitrophenyl-1,3-propanediol, phytic and maleic acids and also with inorganic or organic bases e.g. alkali metal, alkaline earth metal, ammonium or organic amine salts. The novel 6-demethylene tetracycline derivatives of general Formula I and salts thereof may be formulated into pharmaceutical compositions. Reference has been directed by the Comptroller to Specification 995,031.
Patent GB-757757-A (GB)
Title: Improvements in or relating to the discharge of aqueous crystal slurries and apparatus therefor
Inventor: BAMFORTH ALFRED WILLIAM
IPC: B01D9/00
Filed: 1954-06-03
Abstract: <PICT:0757757/III/1> To prevent evaporation when discharging crystal slurries from a crystallizer or precipitator at one pressure to a discharge vessel 10 at a lower pressure, with consequent formation of crystals around the discharge outlet the slurry is discharged into the discharge vessel at a point below the level of slurry therein. The size of the discharge pipe 12 from the pricipitator and of the outlet 17 from the discharge vessel may be so correlated with each other and the pressure difference between the two vessels that the slurry automatically builds up to the desired level.  A conical member 20 may be arranged in the discharge vessel and an outlet 22 provided in the wall of the discharge vessel to obtain some separation of crystals and molten liquor.  Any crystals which may be formed by flashing off of steam (taken off at 14), are removed by introducing at 19, preferably tangentially, some of the feed liquor that would otherwise be fed to the precipitator.
Patent GB-557674-A (GB)
Title: Improvements in hose or pipe clips or clamps
IPC: F16L33/08
Filed: 1942-11-20
Abstract: 557,674. Fastenings. BERGSTROM, E. Nov. 20, 1942, No. 16408. [Class 44] In a bana clip comprising a worm engaging a thread 2 on the end of the band, the tubular sleeve 3 housing the worm and the ends of the band is shaped so that only its ends 3b guide the edges of the band.