baber/WOPTO huggingface dataset:
Patent GB-1128627-A (GB)
Title: Extruded sealing member
IPC: F25D23/08
Filed: 1966-02-15
Abstract: 1,128,627. Seal strips. B. F. GOODRICH, CO. 15 Feb., 1966 [23 Feb., 1965], No.6634/66. Heading E1J. Integral strip extruded gasket for providing a seal between two relatively movable members, e.g. for magnetic seals for refrigerator doors, &c. Figs. 2 (and Figs. 4 and 5) or elastomeric tubular strips (Fig. 3) or threshold strip (Fig. 6) or for the edge of a door (Fig. 7), comprises an attachment portion 16, for fixing to one of the members between which a seal is to be made and a deformable sealing portion 18, 19, 20 for engagement with the other member and a material of lesser stiffness than the portion 16 and extends from the portion 16 or from a base portion 17 between the sealing portion 18-20 and attachment portion 16, the extrusion being formed entirely of synthetic plastics which can have its stiffness reduced by the addition of a plasticiser, and the greater proportion being in the sealing portion of the gasket than in the attaching portion. The plastics may be P.V.C. and the plasticiser in the sealing portion of the gasket only. As shown in Fig. 2 the sealing portion comprises a hollow tubular portion 20 filled e.g. with barium ferrite, united by elastomeric binder.
Patent GB-1376172-A (GB)
Title: Rotary electric machines
IPC: H02P1/44
Filed: 1971-03-12
Abstract: 1376172 Induction motors NATIONAL RESEARCH DEVELOPMENT CORP 15 Feb 1972 [12 March 1971] 6698/71 Heading H2A A single phase, capacitor start motor has a stator winding wound as first and second sections electrically spaced at an angle of 90  N degrees, where N is a small angle between 0 and 30 degrees, and switching means for energizing both sections during running and for energizing the first section as a main winding and the second section in series with a capacitor during starting. Fig. 2, shows a 2-pole concentric winding in twelve slots, the displacement angle between the winding sections being 75 degrees. Alternatively the displacement may be 105 degrees in which case the second section occupies slots 5, 6 and 11, 12. Switching circuits for these two winding arrangements are described (Figs. 4 and 3, respectively, not shown). In the "run" position the circuit through the capacitor (3) is broken and the winding sections are connected in series.
Patent GB-195249-A (GB)
Title: Improvements in electrical switches
IPC: H01H19/02
Filed: 1922-03-07
Abstract: 195,249. Tinlot, D. March 7, 1922. Switches, quick-action of the rotary step-bystep type comprise an insulating base 1 with integral projections 5 in the form of teeth on diametrically-opposite faces of which the turned up ends 12 of combined contacts and terminals are secured by screws passing into the base through the holes 7. A bridging contact-member 11 with cup-shaped turned up ends is mounted loosely on the spindle 13 fixed to the base and is pressed down on to the contacts by a spring 17 located between the contact-member and a driving stirrup 16 which is held by a washer on the spindle. The handle has a polygonal recess fitting on to the driving stirrup to afford a driving connection and is maintained on the spindle by a nut 24. A shoulder on the handle prevents the removal of the cover which is held against rotation by a projection formed upon it engaging a notch in the base. When the handle is turned, the bridging contact-member rides up the teeth against the action of the spring and assumes the next position with rapid action. Additional fixed contacts may be employed to adapt the switch to different purposes.
Patent GB-650453-A (GB)
Title: Improvements in or relating to filling heads for bottling machines
IPC: B67C3/18
Filed: 1947-03-11
Abstract: 650,453. Bottling. ADLAM & SONS, Ltd., G., and FRIENDSHIP, K. F. M. March 11, 1947, No. 6749. [Class 125(ii)] A filling head for a rotary type bottling machine in which filling is controlled by valve mechanism in the filling heads, comprises a body member 1 adapted to be connected to the machine and provided with horizontally disposed spaced annular parts 1a, 1b within which are located respectively upper and lower valve holders 3, 4 between which is disposed a valve disc 6 rotatable about a spindle 8 passing through holders 3, 4. Disc 6 is formed with a bore 6a for the passage of liquid which, in one position of the disc, registers with coaxial bores 3a, 16 to provide a straight-through passage for the liquid. Spindle 8 is rigidly secured to holder 4 and extends through holder 3 to the exterior face thereof where it is provided with a wing-nut 9 which can be turned to draw the parts together to effect a sealing pressure or can be removed from the spindle to permit axial displacement of the spindle with holder 4 to separate the parts. As shown, resilient sealing members 12, 14 of leather, plastic or rubber, and gaskets 13, 15 of soft rubber, are interposed between disc 6 and valve holders 3, 4. Holder 3 is provided with liquid passage 3a and also with two gas passages 20; holder 4 is fitted with filling tube 16 and provided with a gas passage 20a which connects with helical grooves in the interior wall of a cap 17 when the latter is raised by a bottle to the top of tube 16. Valve disc 6 is provided with two liquid passages 6a and a gas passage 6b (see Fig. 4) which, when the valve is rotated by the engagement of arms 7 with fixed tappets, register with the liquid and gas passages of the valve holders permitting delivery of liquid while connecting the bottle first to a source of reduced pressure to initiate a siphoning action, and thereafter to the higher pressure obtaining in the liquid supply tank. Cleaning of passages 3a, 6a and 16 is facilitated by removal of a plug 23. A ball valve 19 closes the liquid supply passage in the event of bottle breakage &c. Specification 650,454 is referred to.
Patent GB-925457-A (GB)
Title: Hydrogenation process using ruthenium-containing catalysts
IPC: C07D207/04
Filed: 1961-02-23
Abstract: A supported catalyst containing ruthenium and another platinum group metal are used to hydrogenate organic compounds, numerous examples of which are given.  Specified supports are C, Al2O3, SiO2, Kieselguhr, silicon gel, TiO2, CoCO3, BaSO4 and bentonite.  Specified other platinum group metals are Pt, Pd and Rh.  The ruthenium may be present in the catalyst as the oxide or alternatively (having been reduced) as the metal itself.  Examples are given. Compounds which may be hydrogenated include benzene, toluene, xylene, naphthalene, and anthracene.ALSO:In a process for hydrogenating a compound selected from carboxylic aromatic, heterocyclic aromatic, aliphatic nitro, aromatic nitro, nitrile, acetylenic diol, phenols, alkoxybenzenes, aromatic carboxylic acids, amines, hydroxyl amines, oximes and imines, the compound is contacted with a supported catalyst containing ruthenium and another platinum group metal. Specified compounds are benzene, toluene, xylene, naphthalene, anthracene, pyridine, pyrrole, furan, furfuryl alcohol, 1-nitropropane, 2-nitropropane, b -nitroethyl benzene, nitrobenzene, nitrotoluenes, nitrophenols, nitronaphthalenes, propionitrile, benzyl cyanide, acetonitrile, acrylonitrile, phenyl cyanide, toluonitrile, naphthyl cyanide, butyne-2-diol 1 : 4, 1 : 4 dimethylbutyne-2-diol 1 : 4, 3 : 6 dimethyloctyne-4-diol 3 : 6, 1 : 4 diethylbutyne-2-diol-1 : 4, phenol, cresols, naphthols, anthranols, methoxybenzenes, methoxyphenols, ethoxybenzenes, methoxytoluenes, benzoic acid, toluic acid, ethoxy-benzoic acid and naphthoic acid, aniline, N-methylaniline, N : N dimethylaniline, naphthylamine, b -ethyl phenylamine, phenylhydroxylamine, naphthylhydroxylamine, butylhydroxylamine, cyclohexanone oxime, salicylaldehyde oxime, 1-phenyl-1-2 propanedione-2-oxime and N-ethyl ethylimine (CH3.CH=N.C2H5).  Examples describe the hydrogenation of <FORM:0925457/IV(a)/1> and <FORM:0925457/IV(a)/2>
Patent GB-1027803-A (GB)
Title: Evaporative cooling systems
IPC: F28F1/26
Filed: 1963-02-20
Abstract: 1,027,803. Heat exchange surfaces. COMPAGNIE FRANCAISE THOMSON - HOUSTON. Feb. 20, 1963 [Feb. 23, 1962], No. 6780/63. Heading F4S. [Also in Divisions F1, G6 and H1] A heat-conductive wall said to be applicable to thermal machines such as electron tubes, I.C. engines, chemical and nuclear apparatus, has a surface exposed to a vaporizable liquid and formed with channels so dimensioned and spaced that d<1/3b and b = m#ac, where b is the channel depth in cms., d is the average channel width in cms., a is the average transverse width in cms. of the solid ridges defined between adjacent channels, c is the thermal conductivity of the structure in watts transmitted heat per cm. per degree Centrigrade, and m is a numerical coefficient lying between 0À7 and 1À8. Preferably d lies between 1/12b and 1/5b and m is 1 to 1À5, e.g. 1À25 for structures of copper, bronze or graphite. The structure may be flat or cylindrical, and may include transverse channels 8, Fig. 6 (not shown), the dimensions of which also satisfy the above relationships. The entry of liquid into the bottoms of the channels may be facilitated by providing inlet recesses at spaced points in the side walls of the channels. The intake of liquid may be further facilitated by enlargements 19, Fig. 8, extending the length of the channels 4, and alternately offset to avoid weakening the ridges 3. The main ridges 3, Fig. 9, may be capped with secondary ridges and channels 3b, 4b dimensioned in accordance with the invention.
Patent GB-1086533-A (GB)
Title: Improvements in or relating to non-linear amplifier arrangements
Inventor: UNDERHILL WALTER THOMAS
IPC: H04N5/202
Filed: 1964-02-19
Abstract: 1,086,533. Electric analogue calculating. MARCONI CO. Ltd. Nov. 25, 1964 [Feb. 19, 1964], No. 6918/64. Heading G4G. A circuit for approximating to a desired non- linear input/output transfer characteristic e.g. for television gamma correction comprises a transistor VT1 whose base receives an input signal and whose emitter output is coupled over resistors R2 and R5 respectively to the bases of transistors VT3, VT4 whose emitter circuits energize opposite ends of potentiometer RV2 whose slider is connected to the base of output transistor VT5 energizing the output. Transistor VT2 operates as a low impedance reference voltage source whose base is connected to a slider of a potentiometer RV1 across the operating power supply, and whose emitter is earthed over series resistors R9, R10, R4 and is connected over R3 and R2 to the emitter of VT1 to which the junction of R4, R10 is also connected over R8 and R5. Potentiometer RV1 is adjustable so that the emitter voltages of VT1, VT2 are equalized. The junction of R5, R8 is connected to the emitter of VT2 over diode MR2 and resistor R6, and to the junction of R9, R10 over the diode R1 and resistor R7 in a non-linear network such that lower levels of the input signal provide a relatively greater proportion of the output signal than do higher levels; the overall transfer characteristic approximating to an inverse square law. R2, R3 are chosen so that at maximum input signal the outputs of transistors VT3, VT4 are equal and adjustment of RV2 varies the proportions of such outputs applied to the base of VT5 to energize the circuit output. The input may be a linear sawtooth signal, and the waveform of the output is variable with the position of the potentiometer slider (Fig. 2, not shown).
Patent GB-680659-A (GB)
Title: Apparatus for mechanically gripping animals
IPC: A01K1/06
Filed: 1950-03-21
Abstract: 680,659. Animal stocks. ANDERSON, C. S. Nov. 20, 1950 [March 21, 1950], No. 7094/50. Class 81 (ii). An appliance for gripping an animal comprises an opening formed by two divergent sides of a frame through which the head can project and a spring-loaded arm movable across the opening to grip the neck between itself and the side of the opening. A releasable locking device is provided to hold the arm in the gripping position. In the case of a cattle marking gate an arm 9 pivoted at 20 is normally held in the open position by a spring 10, to allow the animal's head to protrude through the resultant opening, but can be pulled across, to grip the neck, by a cable 11 attached to its upper end. When it reaches the upright position, shown in full, a latch 16 is lowered to retain it, this being raised, when required, by a second cable 18. In the open position, the taut wire 11 passes under the latch 16 and holds it raised, so that it falls automatically when the gripping arm 9 is actuated. In order to accommodate smaller animals a distance piece 23 is removable attached to the side of the opening.
Patent GB-880194-A (GB)
Title: Acoustic filter for use with a stream of compressible fluid
IPC: F04B39/00
Filed: 1960-02-29
Abstract: 880,194. Silencing gaseous currents. EVERETT, W. S. Feb. 29, 1960, No. 7107/60. Class 7(2). An acoustic filter for use with a stream of compressible fluid comprises, a pair of spaced annular chambers 26, 40 (Fig. 1) with central apertures 61, 62, the chambers having adjacent spaced opposing walls 34, 52 defining an annular passage 60 communicating at its inner periphery with the apertures, a plurality of ports 70, 72 in each of the walls 34, 52 and a filler material 74, e.g. fibre glass in the chambers with the interstices therein defining with the ports 70, 72 a plurality of resonators designed to absorb given frequencies. In this embodiment the filter consists of an elongated conical tube 12 having an entrance port 14 adapted for connection to an exhaust pipe, a "pancake" construction 24 welded to tube 12 and forming the chambers 26, 40 connected at their outer peripheries by lugs 58, and a cylindrical resonance chamber 42, having its end wall 44 bumped outwards for stiffness. Chamber 42 is used to attenuate the low frequencies and chambers 26, 40 the high frequencies. According to the frequency (f) to be attenuated a chamber has its free volume V and the area of its aperture A determined by the formula f = K A“/V¢ where K is a constant.   In a second embodiment, Fig. 3, a conical tube 92, having an outlet 94 adapted for connection to the inlet of an engine is attached to a "pancake" 102. The "pancake" consists of an annular chamber 106 and a cylindrical chamber 118 formed by an inner conical wall 120, the apex 122 of which is on the axis of the tube 92, and a dome-shaped head 124. The outer peripheries of the chambers 106, 118 are connected by lugs 128 to form an annular passage 130. The walls 112, 120 of the chambers 106, 118 have a plurality of ports 136, 138 which together with the interstices of a filler 140 form a number of resonance chambers. The area and spacing of the ports are arranged so that a broad band of medium range frequencies is attenutated. A series of corrugated sheets may be placed in the chambers of either embodiment, the sheets being juxtaposed adjacent each other to form a large number of small passages. Preferably the walls of the chambers are made of metal and the ports occupy less than 20% of the total area of the walls.
Patent GB-582666-A (GB)
Title: Improvements in or relating to ampoules or similar small containers
IPC: A61J1/06
Filed: 1944-04-18
Abstract: 582,666. Moulding ampoules and small containers. CHAMBERLAIN, J., and JOHNSEN & JORGENSEN FLINT GLASS, Ltd. April 18, 1944, No. 7188. [Class 87 (ii)] [Also in Group VI] Ampoules or other small containers are moulded in a single piece wholly from organic synthetic thermoplastic material with the neck portions closed, and immediately after removal from the mould, the bottom portion is sealed by the application of heat and pressure. The ampoule may be filled by a needle pressed through its wall, or after removal of its tip, through the neck, which is resealed. The neck may be formed with a thin wall portion for the insertion of a hypodermic needle for withdrawing the contents. A pocket 21 for a hypodermic needle may be moulded integral with the ampoule. A number of ampoules may be moulded in one operation with connecting webs which are cut when required for use. Injection moulding or moulding by blowing in a mould may be employed. Suitable materials for use are ethyl cellulose, cellulose acetate, polyvinyl esters, polyvinyl chloride with or without admixed polyvinyl acetate, or polythene.
Patent GB-231471-A (GB)
Title: Improvements relating to gland packings
IPC: F16J15/40
Filed: 1925-03-17
Abstract: 231,471. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Johnson, J. F.). March 28, 1924, [Convention date]. Oil, catching and removing.-Packing for preventing the escape of liquid and vaporous lubricant from a bearing, comprises a ring 26 having sharp-edged ridges 35, the grooves between which drain by passages 41 into a pocket 40 having an overflowing opening 42 above the lower ends of the channels 41. Drainage' collects in a chamber 45 with outlet 46.
Patent GB-1177204-A (GB)
Title: Process for the Simultaneous Desizing, Scouring and Bleaching of Fabrics
IPC: D06L4/70
Filed: 1968-02-14
Abstract: 1,177,204. Desizing, scouring and bleaching fabrics. ROBERTA CERANA S.p.A. 14 Feb., 1968 [25 Feb., 1967], No. 7214/68. Addition to 1,101,846. Heading D1P. Fabric is simultaneously desized, scoured and bleached by a process in which it is first impregnated at room temperature with an aqueous solution containing hydrogen peroxide in an amount corresponding to a content of 2.5- 8.5% by weight of 35% by weight hydrogen peroxide and caustic soda in an amount corresponding to a content of 0.2-5% by weight of 36 Baume caustic soda, and then sequentially treated with saturated steam at 90- 100C, treated with hot water at 60-90C., treated with hot water and steam at 90-100C and finally washed in a plurality of washing steps at progressively reduced temperatures. The aqueous solution may also contain a stabilizer, e.g. an albuminous derivative or sodium silicate, a sequestering agent and a capillary active agent, e.g. an alkyl phenol compound, hydroxyethylene derivative or sodium salt of a synthetic acrylic carboxylic acid. The fabric may be squeezed between each step. Fabrics, including pile fabrics, made from cotton alone or in admixture with polyester fibres or from viscose rayon may be treated. Fabrics containing cotton bolls and unripened cotton may be treated.
Patent GB-267316-A (GB)
Title: Improvements in carpet sweepers
IPC: A47L11/33
Filed: 1926-03-16
Abstract: 267,316. Entwisle & Kenyon, Ltd., Kenyon, R. W., and Shorrock, J. L. March 16, 1926. Addition to 229,462, [Class 10, Brushing &c.]. Carpet-sweepers have a U-shaped protector guard D partly encircling the neek of the brush with plain or unserrated edges and a curved flange d<1> projecting towards the inner side to cover the brush stock B adjacent the casing A and with lugs d<2> for attachment to the sweeper case. The guard may be in two hinged parts and made of celluloid or aluminium. Specification 267,314 is referred to.
Patent GB-452271-A (GB)
Title: Improvements in rotary piston machines
IPC: F04C2/18
Filed: 1936-03-10
Abstract: 452,271. Rotary engines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Gutehoffnungsh³tte Oberhausen Akt.-Ges.; 1, Lipperfeld, Oberhausen, Rhineland, Germany) March 10, 1936, No. 7269. [Class 110 (ii)] In a rotary ongine with a main rotor a, and one or more abutment rollers b, geared together, the bearings of rollers b are mounted in eccentrics which can bo rotated to adjust the clearances between the rotors. Sealing blocks k are also adjustable to compensate for the movements of tho rollers.
Patent GB-741320-A (GB)
Title: Improvements in alignment control devices for moving webs
IPC: B65H23/02
Filed: 1953-03-17
Abstract: 741,320. Automatic control systems for moving webs. NATRONZELLSTOFF-UND PAPIERFABRIKEN AKT.-GES. March 17, 1953 [March 18, 1952], No. 7269/53. Class 38 (4). [Also in Group XL (b)] In apparatus for maintaining the alignment of a moving web of material, a pair of light. sensitive cells are positioned in a casing so mounted with respect to the edge of the material that the cells are spaced apart in the direction of travel of the material while, with the web in its position of alignment, one cell is totally obscured by the web and the other totally unobscured. As shown, the edge of the web 1 passes through a slot 17 in the edge of a casing 6 having light sources 7, 8 mounted in its bottom limb and photo-cells 9, 10 in the top. The lateral positioning of the cells is shown in Fig. 2 where the edge of the web is shown dotted. The angular position of the casing may be adjusted about a pivot 12 so as to vary the spacing of the cells in a direction perpendicular to the web travel. The casing as a whole may be adjusted in a direction perpendicular to the web by means of a foot 13a, supported in guide rails 14. Projecting above the surface of the lower limb are lens 7a, 8a and the travelling web is prevented from touching the surface of these by supports 16 or guide rails now shown. Also mounted in the housing so as to receive light from source 8 is a photo-electric cell 19 which acts as a balancing cell. In a modification (Figs. 8 and 9, not shown), the balancing cell may receive illumination from both of light sources 7 and 8 through channels in the housing. Circuits (Fig. 7).-Cells 9 and 10 are connected in parallel and in opposition to the balancing cell 39. Cells 9 and 10 are illuminated respectively by sources 7 and 8 while cell 39 is illuminated by both. When the web is correctly aligned, the combined outputs of cells 9 and 10 are balanced by that of cell 39. If the web deviates so that both cells 9 and 10 are obscured, the output of cell 39 is able to actuate a relay to recentre the web. If both cells are illuminated their combined output is larger than that of the balancing cell and the relay is actuated in such a sense as to restore the web. The sensitivity of cell 39 in adjustable by means of variable resistor 41. In the arrangement of Fig. 6 (not shown), a pair of photo-emissive cells is used controlling respectively the cathode and grid potentials of a triode valve in the anode circuit of which is a marginal relay.
Patent GB-565308-A (GB)
Title: Improvements in and relating to hydraulic presses
IPC: B21D24/14
Filed: 1943-05-10
Abstract: 565,308. Hydraulic presses. MULLER, J. A. May 10, 1943, No. 7366. [Class 69 (ii)] [Also in Group XXII] A hydraulic drawing or forging press comprises a platen 10 and a work clamping means 59 which is operable selectively to clamp the work or assist the platen 10 in shaping it. For use as a shaping means the clamping plate 59 is secured by bolts 64, 65 to the platen 10 and clamping cylinders 53, 54 are supplied in common with the main pressure cylinder 2 by a pump 16, which also withdraws liquid from the opposite end of the main cylinder. The various cylinders are interconnected by pipes 34, 36. To retract the press the pump is reversed, the pump discharge to the bottom of the main cylinder being also connected to an outlet valve 25 to open it against a normal closing pressure supplied by a pump 39. Surge valve 13 and pump by-pass valve 19 also open. When used for clamping the work, the member 59 is permitted movement relatively to the platen by unscrewing nuts 69, 70 on the bolts 64, 65, the connections 34, 36 between the clamping and main cylinders are closed, and relief valves 48, 50 are set at the desired clamping pressure. Pump 16 now supplies liquid to the main cylinder only and as the platen moves downwardly liquid is drawn into the clamping cylinders through check valves 51, 52. The clamping member contacts the work while platen 10 is still moving downwardly and pressure therefore builds up in the clamping cylinders. During the first portion of the retracting movement the member 59 remains in contact with the work thus stripping it from the platen 10, until the latter engages the nuts 69, 70 and raises the clamping member.