baber/WOPTO huggingface dataset:
Patent GB-500241-A (GB)
Title: Improvements in thresholds and weather strips for door sills
IPC: E06B7/232
Filed: 1938-03-08
Abstract: 500,241. Thresholds; weather excluders. PERCIVAL. S. (Chamberlin Metal Weather Strip Co.) March 8, 1938, No. 7240. [Class 20 (iii)] A metal threshold 8 is provided on the sill of a door and a lip 4 thereon projects into a bent metal strip 5 fixed in a rabbet in the bottom of the door. A water trap 9 and draining slope 8 are provided on the outside, as well as drain holes 10, 12, and a water-collecting pan 11. The threshold may have a vertical abutment surface 19, Fig. 3, against which the floor surface 20 abuts. The lip may extend from a vertical face into a rabbet 32, Fig. 5, in the door, a flexible strip 35 being fixed in the rabbet to engage the front and lower side of the lip.
Patent GB-194930-A (GB)
Title: Improvements in wheel hubs
IPC: B60B27/00
Filed: 1922-03-11
Abstract: 194,930. Lischke, W. March 11, 1922. No Patent granted (Sealing fee not paid). Hubs; spokes, securing.-Relates to means for securing a wheel or pulley to an axle. A bush d longitudinally divided into two sections is placed on a reduced portion b on an axle a and retained by a sleeve g winch can be slid over the bush d. Lugs h on the bush engage with recesses in the sleeve g. The bush is formed with a square exterior and the corners e are chamfered to fit the sleeve g. A disc m with a square aperture n is passed over the bush d to a groove thereon and then turned through 45‹ so that the disc is retained by the corners of the bush, and is further screwed to the wheel which is built up between the disc m and a flange f on the sleeve g. Lubricating holes p are formed in the bush. Studs i on the flange f secure the spokes of the wheel.
Patent GB-1292223-A (GB)
Title: Door hinge
IPC: E05D3/18
Filed: 1970-02-16
Abstract: 1292223 Door hinges KUHLAPPARATE GmbH 16 Feb 1970 [17 Feb 1969] 7273/70 Heading E2F A cupboard door, arranged to swing successively about a first pivot connected to the front of the cupboard and a second parallel pivot formed by a rod extending in a door cavity the full height of the door, the two pivots being linked by hinge arms rigidly connected to the rod and pivotally connected to the first pivot, has a first stop which after a fixed amount of rotation, prevents further rotation about the first pivot, and a second stop controlled by a pre-stressed spring acting between the rod and the door which prevents rotation about the second pivot until the first stop acts and further pressure on the door counteracts the spring. As shown, the first pivot, formed by pins 5 and 6 is linked to the rod 9 by arms 7 and 8, the lower arm 7 being U shaped, rod 9 and pivot 6 passing through both arms of the U. A spring 10 is wound round the rod, which may be polygonal in section, and has one end bearing against the door to thereby urge the second stop 11, on the bottom of the door, into contact with arm 7. The first stop is formed by a face on the web of the U shaped arm 7 (12, Fig. 3) which acts against a bracket 4 holding pin 6. The stops may be adjustable. The rod may be replaced by a torsion bar. Two springs of differing strengths may be wound on the rod. The rod may be bent at its ends to form the rod and arms 7 and 8 or to form the rod, arms and pins 5 and 6 as a single unit.
Patent GB-348754-A (GB)
Title: Improvements in float operated valves for refrigerating apparatus
IPC: F25B41/06
Filed: 1930-03-06
Abstract: 348,754. Refrigerating; float valves. METERS, Ltd., Blackfriars House, Parsonage, APPLETON, C. C., 13, Croft Street, Lower Broughton, both in Manchester, and MORLEY, J., 37, Broomfield Road, Heaton Moor, near Stockport, Cheshire. March 6, 1930, No. 7352. [Class 29.] Compression machines float-operated valves.- The admission of liquefied refrigerant to the evaporator is controlled by a valve, preferably a needle valve m in a port l, actuated by a float a through a face cam e on the float spindle c engaging a counterweighted lever k, the arrangement being such as to give first a rapid closing action and then a slower squeezing action to the valve. The float is preferably segmental or semicylindrical and one end of its spindle may abut against a stop on a horizontally adjustable plate c<1>. The cam e may engage a roller on the lever k and the valve spindle may have a rounded or conical end pressed by a spring o into a recess in the lever, which is pivoted at k<1> and carries an adjustable weight q. The float spindle is mounted in a frame f carried by tubes g surrounding bolts g<1> serving to clamp the cylindrical wall of the evaporator between a head h and base j. The vapour is withdrawn through a pipe r.
Patent GB-694822-A (GB)
Title: Improvements in injection valves for internal combustion engines
IPC: F02M61/10
Filed: 1951-03-30
Abstract: 694,822. Fuel-injectors. BOSCH GES., R. March 30, 1951 [April 1, 1950], No. 7397/51. Class 7 (iii). A fuel injector comprises a spring-loaded valve 2, Fig. 1, opened outwardly by fuel pressure acting upon two separate working surfaces, and a non-return valve 9 is provided in the flow path 8 to one of the surfaces, the valve guide bore 13 only communicating with chambers 5, 10 in which during injection there are pressures at least equal to the pressure adjacent the injection orifice. In Fig. 1 the fuel supplied at 7 acts upon the end of the valve stem 2 and passes through the valve 9 to a chamber 10 where it produces a differential force assisting that on the end of the valve stem to lift the valve 3 from its seat 4. A throttling pintle may be provided on the under side of the valve head 3. In a modification, Fig. 3, the valve stem carries a piston 17 and seats at 16 on a flat seat, the fuel flowing through the valve 9 to the first working surface 30, from which it flows through a passage 31 to a chamber 32 for injec-, tion past a pintle 21, and through a passage 35 to an annular space 33 adjacent the second working surface. In a modification, Fig. 4 (not shown) the pintle part 21 is omitted and replaced by fixed injection orifices, and the valve comprises a hollow piston. Specification 545,559 is referred to.
Patent GB-1177311-A (GB)
Title: Improvements relating to the Coating of Flexible Webs
Inventor: LONG CECIL LOUIS
IPC: B41F9/00
Filed: 1968-02-15
Abstract: 1,177,311. Coated flexible webs. E.I. DU PONT DE NEMOURS & CO. 15 Feb., 1968, No. 7547/68. Heading B2E. [Also in Division D1] A process for coating a flexible web comprises passing the web between the nip formed by a gravure cylinder carrying a fluid coating composition and an impression roll, the surface velocity of the gravure cylinder being at least 1.8 times the velocity of the web and the nip force being 0.36 to 10.7 kg. per cm. of nip width and Brookfield viscosity of the coating composition (measured with No. 4 spindle at 50 r.p.m.) being 0.2 to 20 poises. The web may be of paper, cloth, cellulose esters, polyesters such as polyethylene terephthalate, polypropylene, polyethylene, polyvinyl chloride and polyvinyl acetate. The coating composition may also include ferro-magnetic chromium dioxide in a binder of soya lecithin, a polyurethane and a vinylidene chloride/acrylonitrile copolymer or it may be a light-sensitive gelatino silver halide emulsion.
Patent GB-727417-A (GB)
Title: Improvements in or relating to battery separators and method of preparation thereof
Inventor: POPPER CHARLES
IPC: H01M50/489
Filed: 1952-03-25
Abstract: 727,417. Batteries. AUTO-LITE BATTERY CORPORATION. March 25, 1952, No. 7632/52. Class 53. A separator is made from cellulose fibres formed into a sheet and impregnated with a phenol formaldehyde resin. The sheet is provided with ribs which are provided with an additional quantity of resin on their upper surfaces and are tapered towards their lower ends. The separator may be treated with a wetting agent or the latter may be added to the battery electrolyte or incorporated in the resin dispersion. Fig. 1 shows a separator in which the ribs 28 are tapered as shown in section in Fig. 4. The thin end 30 of the taper is at the upper end of the separator and the ribs may extend the whole length of the separator or terminate short of the upper end as shown in Fig. 1. The ribs may be formed by moulding or by grinding away parts of the sheet material. A large sheet of the resin impregnated material may be ribbed and cut into pieces of the size required for the separators.
Patent GB-1492352-A (GB)
Title: Imidazoles
IPC: C07C47/57
Filed: 1976-02-26
Abstract: Substituted imidazoles of the formula <IMAGE> in which the substituents are defined in Claim 1, are prepared. The compounds are obtained by reacting a corresponding arylaldehyde with a glyoxal having the substituents R and R1. The reaction takes place in the presence of ammonia. The compounds can be used as antihypertensive agents and as agents with a  beta -receptor blocking action.
Patent GB-1083381-A (GB)
Title: Radio landing system
IPC: G01S1/46
Filed: 1965-02-22
Abstract: 1,083,381. Radio navigation. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 22, 1965 [Feb. 27, 1964], No. 7656/65. Heading H4D. In a radio landing system employing, in the aircraft, a crossed-pointer indicator, azimuth guidance control of the vertical pointer, relative to a vertical landing plane, is produced by radiations received from a beacon similar to a standard localizer I.L.S. beacon, and elevation guidance control of the horizontal pointer relative to a chosen glide path angle is produced by radiations, received by a V.O.R. type receiver from a beacon, and having radioelectric characteristics in said vertical landing plane similar to those produced in the horizontal plane by a standard V.O.R. beacon, the selector of the V.O.R. type receiver being used to select the desired glide slope angle. One advantage of the invention is said to be that, the standard V.O.R., I.L.S. receiver system found in most large aircraft may be used in the invention with very little modification. In a preferred embodiment, the carrier frequencies f and f 1  of the V.O.R. type beacon and the I.L.S. type beacon are so chosen that f-f<SP>1</SP> = 110 Mc/s. and f 1 -f<SP>1</SP> = 330 Mc/s. Thus, after heterodyning with a frequency f<SP>1</SP> controlled to satisfy the above equations by an automatic frequency control circuit, the resulting signals can be fed directly to the V.O.R. receiver and I.L.S. receiver respectively, Figs. 7 and 8 (not shown). Normally, the I.L.S. receiver tuned to 330 Mc/s. receives the I.L.S. glide slope beam, and so controls the horizontal pointer. In the invention however the 330 Mc/s. signal is derived from an I.L.S. type localizer beam and so the receiver output must be arranged to control the vertical pointer and it must be altered to control the horizontal pointer. The V.O.R. type beacon may comprise three antennµ B, A, B<SP>1</SP>, Fig. 2 (not shown), aligned equispaced in a straight vertical line, at rightangles to the axis of the sector S 1 .A.S 2  within which it is desired to provide aircraft with elevation information. Antenna A radiates a carrier f, amplitude modulated to a depth of 30% by a subcarrier of 9960 c/s. frequency modulated at 30 c/s. Antennµ B and B<SP>1</SP> radiate sidebands at respective frequencies of f+30 c/s. and f - 30 c/s. The radiation is such that in a direction making an angle S with the axes of the antennµ the field Fp, neglecting the 9960 c/s. subcarrier, is given by: The phase difference between the reference 30 c/s. signal obtained from the frequency modulated subcarrier and the 30 c/s. signal amplitude modulation at the receiver is thus or a function of the elevation angle S. The signals feeding the three antennas may be obtained from a standard V.O.R. system by frequency translation, Fig. 4 (not shown), or by signals modulating the carrier f directly, Fig. 3 (not shown). In another embodiment, the localizer beacon may radiate a carrier of 110 Mc/s. and the V.O.R. type beacon may radiate a carrier of 330 Mc/s., in which case the controls of the indicator pointers are not altered.
Patent GB-1479201-A (GB)
Title: Sealing hollow articles
IPC: E02B3/26
Filed: 1975-02-11
Abstract: 1479201 Fluid-pressure actuators DUNLOP Ltd 11 Feb 1975 [20 Feb 1974] 7659/74 Heading F1D [Also in Divisions B7 and F2] A hollow flexible-walled article 1, having in the embodiment shown a seam line 2, is flattened and the two opposing edges of the thus flattened open end are sealingly joined together to produce a straight seam line 3. The end is then opened out to form a flattened symmetrical end surface having corners two of which i.e. 4, 4' correspond to the ends of the seam line 3. Any two opposing corners are then folded inwards and attached together. On inflation the article can be used as a pneumatic lifting device.
Patent GB-434822-A (GB)
Title: Improvements in or relating to inductance coils
IPC: H01F27/00
Filed: 1934-03-10
Abstract: 434,822. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and APPLETON, W. A., 189, Wembley Hill Road, Wembley, Middlesex. March 10, 1934, No. 7697. Drawings to Specification. [Class 37] Inductance coils are compensated for temperature variations to a desired degree, or are over-compensated, and comprise one or more turns each anchored at a number of points to a support so that the portions of each turn between anchored points are caused to deform or buckle with temperature change, the said portions of each turn being entirely unsupported between the anchored points. The turns are in screwthreaded, riveted or clamped engagement with the insulating support members which may be located at corner points and integral with a polygonal carrier member, or the turns may pass between upstanding pins at the support points.
Patent GB-138218-A (GB)
Title: Improvements in boxes, cases, portmanteaux, sacks and the like
IPC: A45C5/14
Filed: 1919-03-28
Abstract: 138,218. Cumberland, G. L. March 28, 1919. Boxes with castors. -A box, case, portmanteau, &c. is provided with wheels, castors, or spheres permanently mounted within the interior in such a way as to project slightly through the bottom to facilitate moving the box &c. The rollers &c. B, Fig. 1, may be carried in bearings in a block or shield C secured inside the box &c., and may be arranged to lie wholly within the contour of the sides of the box, as shown in Fig. 5.
Patent GB-922411-A (GB)
Title: Improvements in or relating to non-return valves
Inventor: DYSON GEORGE
IPC: F22B37/42
Filed: 1959-03-06
Abstract: 922,411. Fluid-pressure servomotor control systems. J. BLAKEBOROUGH & SONS Ltd. March 7, 1960 [March 6, 1959], No. 7797/59. Class 135. A non-return valve 12 normally acts under the control of a dashpot piston 28 to which it is connected. A valve spindle 22 is provided with ports 36, 38 for by-passing the dashpot, the ports 38 normally being closed by a valve member 42. In the event of a sudden drop in pressure on the upstream side of the valve 12, a signal is sent to a solenoid-operated valve 78 which is actuated to admit a fluid pressure, different from that passing through the valve, to the top of piston 52 causing this piston and hence a rod 58 to move downwards. Downward movement of the rod 58 first depresses the valve 42 to nullify the dashpot and then acts on the spindle 22 to move the valve 12 towards a closed position, which valve is finally closed by the fluid pressure downstream of the valve. A cylinder 50 housing the piston 52 is open at its bottom to atmosphere and the piston seats on a knife edge 64 in its lower position. When the piston is so seated there is a small clearance between the rod 58 and the valve spindle 22 when the valve 12 is closed. The valve is described for use in the bleed line of a steam turbine where the solenoid is actuated by a governor in the event of a sudden increase in speed. The valve member 12 may be provided with a skirt portion which enters the seating. In this position shown, the end of the rod 58 forms a valve to prevent leakage past this rod, which is also formed with a labyrinth seal or a water seal. If the non-return valve is used to control sub-atmospheric pressures the rod 58 is secured to the piston 52 which is spring-loaded to its upper position.
Patent GB-979183-A (GB)
Title: Improvements in or relating to dry shaving apparatus
IPC: B26B19/40
Filed: 1961-03-03
Abstract: 979,183. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 3, 1961 [March 8, 1960], No. 7837/61. Heading B4B. [Also in Division H1] A dry shaver head is provided with means to cool at least a part of the surface of the head which, in use, is in contact with the user's skin. Peltier elements 11 in the walls of the headhousing are of Bi 2 Te 3 , alternately of P and N types, and are insulated from each other by synthetic material 12. The cold junctions, are plates 13, of good electrical conductivity, and the hot junctions are plates 14 which have cooling vanes 15 forming annular spaces 16 filled with a coolant material having a high electrical resistance, to avoid short circuiting, and melting near the ambient temperature without great change of volume. Electrical current for the elements is derived from the motor of the dry shaver, the stator being constructed as a transformer for the supply of current to the elements, and a rectifier being arranged in the housing of the apparatus. In modifications, the transformer and rectifier are incorporated in the plug of the apparatus, or, as shown in Fig. 3, a direct current generator 28, feeding the elements through conductors 29, 30, is mounted on the drive shaft 27 of the motor, the shafts 31, driving the cutters, having vanes 32 which blow cool air along the hot junctions 33. Part of the top surface of the cold joints is thermally insulated to control heat transmission from the skin and the remainder of the top surface is electrically insulated by lacquering. In further modifications, the shaving head is provided with a duct connected to the main water supply or to a container of rapidly evaporating substance.
Patent GB-1184802-A (GB)
Title: Improvements in or relating to Electro-Optical Devices
Inventor: SCARROTT GORDON GEORGE
IPC: G02F1/035
Filed: 1967-02-18
Abstract: 1,184,802. Light modulators. INTERNATIONAL COMPUTERS Ltd. 9 Feb., 1968 [18 Feb., 1967], No. 7841/67. Heading H4F. [Also in Division G4] Apparatus which may be used for reading information recorded on a storage plate comprises a matrix of electro-optic devices (switches), each device comprising a straight elongated element of electro-optic material having two end faces and a side surface bounding the element between the end faces, and in which at least the side surface is surrounded by a material to produce an interface extending round the element and along the length thereof, so that a substantially parallel beam (rays of light diverge by approximately 2 degrees, or less, from the main axis of the beam) of plane polarized light directed on to one of the end faces is totally internally reflected at the interface as it passes along the element, the apparatus also including means for applying an electric field across any selected one of the elements to modify the polarization of the light transmitted by that element. As shown, Figs. 1 and 2, the matrix of electrooptic devices comprises tubes 7 of borosilicate glass each inserted in a cell of a matrix formed by printed circuit boards 1 and 2 having slots 3 and electrodes 4, Fig. 2, which are connected to X and Y drive sources 5 and 6, Fig. 1. Surfaces 9 and 10 of the matrix are painted with opaque paint, and the space inside each glass tube 7 is filled with nitrobenzene by placing the matrix in a tank of nitrobenzene. Light rays directed along the axis of a tube are totally internally reflected at the boundary between the glass and nitrobenzene. In operation, Fig. 3 (not shown) light from a lamp is focused by a Fresnel lens on to the matrix via a polarizer, and the light output from the matrix is passed via an analyser and Fresnel lens to illuminate selected areas of a photographic storage plate on which items of information are represented by transparent or opaque areas, a photo-cell being located behind the plate. With no field or only one field applied across an element the light emerging therefrom is blocked by the analyser, but with both fields (from the X and Y drive sources) applied across an element the resultant field causes the light passing through to become elliptically polarized and thus a fraction of the emerging light is passed by the analyser. Optimum transmission occurs when the two fields are equal giving a resultant field at 45, 135 degrees &c., see Specification 1,098,183. Instead of circular, other cross-sectional shapes may be used for the electro-optic material such as a square section. Borium titanate may be used as the electro-optic material. The condition of total internal reflection for solid electrooptic materials may be achieved by immersing them in a liquid of appropriate refractive index, or by coating them with a thin layer of reflecting material.
Patent GB-917680-A (GB)
Title: Flexible couplings for transmitting rotary motion
Inventor: GRAHAM STANLEY JOSEPH GEORGE
IPC: F16D3/62
Filed: 1960-03-04
Abstract: 917,680. Universal joints. SILENTBLOC Ltd. March 6, 1961 [March 4, 1960], No. 7844/60. Class 80 (2). A universal joint consists of pins 4 passing through spiders on the driving and driven members 1, 2, embedded in flexible bushes 5, and interconnected by tangential torque-transmitting members 6 and radial or diametral members 7 which resist relative lateral movement of the driving and driven members. As shown, the members 6 are of rubber or like material, while the members 7 are in the form of diametral flexible metal leaves or plates. In further embodiments the members 6, 7 both consist of loops of flexible material such as nylon cord, Fig. 4 (not shown), or the members 6 are of looped form and the members 7 of flexible metal leaves, Fig. 6 (not shown). Additional arrangements, Figs. 10 and 11 (not shown), comprise radial elements 7 of metallic leaf, or endless star looped, form.
Patent GB-601384-A (GB)
Title: Improvements in and relating to method of and mold for making integral reed plates and reeds for musical instruments such as harmonicas and accordians
IPC: B29C45/26
Filed: 1945-03-28
Abstract: A reed plate having reeds integral therewith, for musical instruments such as harmonicas and accordions, is moulded from polystyrene or other synthetic resin or cellulose acetate.
Patent GB-853803-A (GB)
Title: New phenthiazine derivatives and processes for their preparation
IPC: C07D279/28
Filed: 1958-03-11
Abstract: The invention comprises compounds of the general formula: <FORM:0853803/IV(b)/1> and their acid addition and quaternary ammonium salts (wherein A is -(CH2)3- or <FORM:0853803/IV(b)/2> , X is a lower (C2-4) acyl, cyano, methylthio, methanesulphonyl. or dimethylsulphamoyl group, R1 and R2 are alike or unlike and either each is a hydrogen atom or a lower alkyl group or together with the adjacent nitrogen atom they form a saturated heterocyclic group, which in the case of a piperazinyl group may be N-substituted by a lower alkyl group), and the preparation thereof by: (1) reacting a phenthiazine derivative of the general formula: <FORM:0853803/IV(b)/3> with a reactive ester of the general formula: <FORM:0853803/IV(b)/4> (wherein Y is the acid residue of a reactive ester), or (2) converting an alcohol (or corresponding alcoholate) of the general formula;  <FORM:0853803/IV(b)/5> by known methods for converting a hydroxy group into a urethane grouping.  Further standard general processes for preparing the compounds are described. The products are useful as sedatives, analgesics, antiemetics and antihistaminics.  3 - Dimethylsulphamoyl - , 3 - methane - sulphonyl - and 3-cyano - 10 - (3 - 11-piperayinyl-2-methylpropyl) - phenthiazine are prepared by deacetylation of their 41-acetyl derivatives obtained by condensing 3-(4-acetylpiperazinyl)-2-methylchloropropane with 3-dimethylsulphamoylphenthiazine, 3-methanesulphonylphenthiazine and 3-cyanophenthiazine respectively.  Specifications 799,919, 805,887 and 813,025 are referred to.  Reference has been directed by the Comptroller to Specifications 805,886 and 811,959.