baber/WOPTO huggingface dataset:
Patent GB-705190-A (GB)
Title: Improvements in or relating to machines for sorting articles
Inventor: HEAD BRIAN ERNEST
IPC: H01J9/46
Filed: 1951-05-17
Abstract: 705,190. Feeding articles in predetermined attitude. STANDARD TELEPHONES & CABLES, Ltd. May 17, 1951, No. 11545/51. Class 117 In apparatus for correctly orientating light objects such as the leads of electronic valves, in which the dimension of one end of a lead is distinguishable from that of the other end, correctly presented leads, viz. those delivered down a shoot 8 with the larger ends foremost, pass unimpeded through the chambers 7, 10 of rotary step-by-step magazines 2, 3 into an output shoot 17, whilst the remainder are held up by a retaining member 15 and are carried forward by the magazine 3 until they are correctly positioned by the rotation of the magazine and delivered to a shoot 28 which joins the shoot 17. The leads which are individually collected in the chambers 7 are first held up in their progress by a stationary shield 12, those correctly orientated then dropping into chambers 10 for delivery into a slot 16 in the fixed supporting shaft 4 of the rotary magazines, but those having the larger ends uppermost are retained when moved off the shield 12 by the member 15 and then allowed to drop into chambers 10, a shield 13 being provided to retain the leads until arrival at the shoot 28. The correctly orientated leads are delivered to boxes 29, 30 mounted on a slide 31 which is vibrated by a coil 33. Broken leads normally slide through the outer magazine and falling against the shield 12, are deflected out of the machine into a receptacle not shown. The chambers 7 are provided with flared mouths so that if oversize or misshapen leads are retained or jammed in the mouths they are carried round by the magazine and ejected by compressed air blown through the chambers by a nozzle 35.
Patent GB-1171695-A (GB)
Title: Improvements in or relating to Electronic Delay Lines
IPC: H01P9/00
Filed: 1967-03-13
Abstract: 1,171,695. Travelling-wave tubes. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 13 March, 1967 [31 March, 1966], No. 11629/67. Addition to 1,032,680. Heading H1D. The signal delay tube of the parent Specification is modified, to reduce insertion loss by the drift space section, by arranging that the drift space is in a transverse magnetic field having a strength different from that in which the delay line section lies, such that the cyclotron wavelength in the drift space is substantially equal to the middle wavelength of the pass-band of the tube. The variation of transverse magnetic field is achieved by the use of polepieces which have projections facing the drift space, for the case of operation in the forward mode, or troughs facing the drift space for operation in the backward mode.
Patent GB-511623-A (GB)
Title: Improvements relating to fastenings for sliding doors
IPC: E05C17/60
Filed: 1938-04-19
Abstract: 511,623. Sliding-door fastenings. OVERTON, W. April 19, 1938, No. 11634. Addition to 483,682. [Class 44] In a fastening for sliding doors of the kind claimed in the parent Specification, the pivoted operating bar is provided at each end with a telescopic member 24 slidable in a sleeve 27, shown as secured within the tubular bar 20 by screws 30, and extensible against the action of a compression spring 28. Each member 24 has a perforated bifurcated jaw 25, or an eye, for pivotal connection one to the T-form catch releasing member and the other to the outside handle.
Patent GB-1173123-A (GB)
Title: Variable Speed Induction Motor
Inventor: MUELLER ARNOLD
IPC: H02K17/30
Filed: 1968-03-11
Abstract: 1,173,123. Variable speed induction motors. A. MœLLER. 11 March, 1968 [11 March, 1967], No. 11662/68. Heading H2A. [Also in Division G3] In a variable speed induction motor having an air gap receiving an axially shiftable bell member 8 which is rotatable with the motor output shaft 13 whose speed and torque depend upon the depth of penetration of the bell member into the air gap, such axial shifting is controlled by an electrical signal, corresponding to the shaft speed, produced by a measured value transmitter 23, e.g. a tacho-dynamo. The latter is driven by the shaft 13 and, in the embodiment shown, controls a servomotor 21 whose threaded rod 20 when rotated effects the axial shifting via a threaded nut 19, lever 14, a cylinder 16, and a quill 10 slidably keyed at 12 to the shaft 13. A squirrel-cage rotor 7 on a hollow shaft 22 drives a fan 24 at a speed irrespective of that of the output shaft 13, and the motor may also be pipe ventilated by a blower, or liquid-cooled. Also on the shaft 13 is a brake disc 26 associated with a ferromagnetic ring 28 acted upon by adjustable springs 27 and an electromagnet 29. In other embodiments the shifting is effected electromagnetically or, Fig. 4, by a further, coaxial, induction servomotor (43). The bell member may have oblique slots, open or filled with ferromagnetic material, and control of its servomotor to provide an adjustably constant speed with varying load is by relays or a transistor circuit Fig. 3.
Patent GB-114387-A (GB)
Title: Improvements in Drawers for Filing Drawings, Sheets of Paper, Linen, or the like.
Inventor: KIRK ROBERT
IPC: A47B88/00
Filed: 1917-08-14
Abstract: 114,387. Kirk, R. Aug. 14, 1917. Clamping-devices; cabinets.-A drawer for filing sheets of paper, linen, &c. is provided with a weight or lath 1 capable of free vertical movement, which is acted upon during the opening of the drawer by inclined planes 5, or their equivalent, so that while the papers &c. are held in position and prevented from curling when the drawer is closed, free access to them is permitted when the drawer is open. The lath is guided by members 2, and its ends 4 may abut against the parts X of the inclined planes 5 if the drawer is not to be pulled out completely, or openings 10 may be provided in the front of the framework if the drawer is to be completely removable. Springs 8 may be provided to apply additional pressure if desired.
Patent GB-1025630-A (GB)
Title: Improvements relating to tobacco charges for pipes
Inventor: HASLAM FRED
IPC: A24D1/14
Filed: 1964-03-19
Abstract: 1,025,630. Tobacco cartridges: BRITISHAMERICAN TOBACCO CO. Ltd. March 10, 1965 [March 19, 1964], No 11738/64. Headings A2C and A2M. A wrapped tobacco cartridge for insertion into a pipe bowl is provided with a wrapper of aluminium or aluminium alloy 0.008 to 0.009 mm. thick which may be lined with paper tissue. The cartridge may be formed from a conventional type of continuous rod mechine or by means of an intermittently rotating chambered wheel. A layer of wrapper from a reel is inserted into a chamber of the wheel at one station, and is followed at the next station by a plug of tabacco. Finally the wrapped plug is expelled at a third station.
Patent GB-511803-A (GB)
Title: Improvements in and connected with garden frames, lights for garden frames and the like
IPC: A01G9/22
Filed: 1938-04-19
Abstract: 511,803. Horticultural frames. GROOM, Ltd., W., and GROOM, W. April 19, 1938, No. 11760. [Classes 20 (i) and 20 (iii)] A garden frame or light comprises stiles 3 and a middle bar 4, each provided with a pair of grooves 6, 7 for the reception of glass panes 8, the two grooves of a pair being offset by a distance equal to the thickness of the glass panes and of such a length that when the panes are slid into position, the adjacent ends thereof overlie one another. The panes are retained in position by means of small blocks 11 secured to the end members 5 of the frame.
Patent GB-830159-A (GB)
Title: Mortice lock covers
Inventor: TALBOT DONALD
IPC: E05B15/02
Filed: 1957-04-12
Abstract: 830,159. Locks. YALE & TOWNE MANUFACTURING CO. March 21, 1958 [April 12, 1957], No. 11997/57. Class 44 A cover for a mortise lock mounted in the rebated edge of a door 7 or the like comprises a block 6 having a central aperture through which the body part of the lock is adapted to be passed into the door or the like, a part of the block being adapted to be mounted in a recess in the lateral face 7b of the edge of the door or the like whilst the other part is adapted to extend from the lateral face for cooperation with a complementary shaped part 10 associated with a keeper 11 mounted on the rebated edge of a relatively fixed surround, complementary door or the like 12, the block being adapted to be held in position by screws 8 passing through the forend of the lock and through the aperture in the block into the door or the like and by shoulders 6a formed on the outer end of the block engaging the edges of the forend. The block can be of a thickness to suit the width of the lateral face 7b of the rebated edge of the door or alternatively it can be made of a thickness equal to the smallest standard width of the lateral face and used with one or more distance pieces 9 if necessary. In such a case a pair of recesses is provided in the block and each distance piece is provided with protuberances on its front face and is recessed in its rear face to receive similar protuberances of another distance piece.
Patent GB-886920-A (GB)
Title: Improvements in and relating to polymerisation catalysts and the polymerisation of ethylene therewith
IPC: C21B13/08
Filed: 1959-04-10
Abstract: Ethylene is polymerized to a normally solid polymer by contact with a catalyst composition comprising a hydrocarbon-soluble aluminium trihalide, a compound of formula RAIX2 (R = a hydrocarbon or halogenated hydrocarbon group, X = Cl, Br or I) and 0,001-0,05 moles per mole of combined Al compounds of a vanadium compound in which the vanadium is divalent or is capable of being reduced to the divalent state, the vanadium compound being hydrocarbon soluble or forming a hydrocarbon souble vanadium compound by interaction with the aluminium trihalide.  In examples, the catalyst ingredients used are VCl2, VCl3, AlCl3, AlBr3, MeAlCl2, PhAlCl2, PhAlBr2, n- and i-BuAlBr2.  The catalyst compositions of the invention may contain a complex of structure:-  <FORM:0886920/IV (a)/1> The polymerization process may also be used for the production of copolymers of ethylene with up to 15 mole % propylene or higher olefins.  Specification 883,498 and Belgian Specification 530,617 are referred to.
Patent GB-869456-A (GB)
Title: Process for the production of 2-phenyl-1,3-butadiene
Inventor: HAWKINS EDWIN GEORGE EDWARD
IPC: C07C1/24
Filed: 1959-04-10
Abstract: 2-Phenylbutadiene-1,3 is obtained by dehydrating 3-phenylbut-2-en-1-ol and/or 3-phenylbut-3-en-1-ol and/or 3-phenylbutane-1,3-diol by heating in the presence of iodine.  The product is preferably removed by distillation as it is formed, preferably under reduced pressure and above 60 DEG C.  The three alcohols may be prepared as a mixture by reacting a -methylstyrene with paraformaldehyde in the presence of acetic acid or anhydride to give the corresponding acetic esters, followed by saponification; the mixture can be used without separation.  In one example a mixture is dehydrated, in others the esters are separated by distillation and saponified to the individual alcohols, which are dehydrated.
Patent GB-331221-A (GB)
Title: Means for clouderising coal dust for power purposes
IPC: F23K3/00
Filed: 1929-03-12
Abstract: 331,221. Verity, C. H. March 12, 1929. Divided application. Fuel, feeding; indicators. - Consists of apparatus for " clouderizing " pulverulent fuel and mixing it with air for supply to furnaces or internal - combustion engines. The crushed fuel, which may be fed from a main bunker, passes through openings 3 in a rotating inlet wheel 4 into a hopper 2, whence it is delivered by a worm 9 to grinding rollers 11, 12 and drops through a vertical passage 17 into the " clouderizing " chamber 21 where the desired cloud formation is assisted by impact on a cone 18. Suction due to a fan, or, in the case of an internal-combustion engine, to the engine itself, draws out " clouderized " fuel through the outlets 26 regulable by a circular hit-and-miss valve 29. In the case of furnace firing a similar valve 28 controls a supply of air from a superposed chamber 31 having an inlet 33 for air. which may be preheated. A bye-pass 34 connects the two chambers. The cone 18 carries an air-entry preventing closure for a bottom outlet 20 from the chamber 21 and is intermittently lifted by cam action to allow coarser particles to drop out on to a band elevator 16, which returns them to a side hopper 43 delivering to the main worm-feed 9 for regrinding. Power is applied to the apparatus at the lower band wheel 23 and the upper band wheel 14 drives, through worm and spur gearing, the spur wheel 4, the long spindle 7 of which carries the worm 9. The band wheel 14 also drives the grinding rollers 10, 11 through gearing which gives them differential peripheral speeds. Any large matter which passes the rollers is caught by a sieve 37 and a counterweighted flap 45 in the tube 17, having a tendency towards a horizontal position, serves, in conjunction with an electric bell circuit, to signal any interruption in the feed. The valves 28, 29 may be under the control of steam pressure, engine speed, &c.
Patent GB-728751-A (GB)
Title: Improvements relating to copolymers of organic derivatives of titanium and silicon
Inventor: BOYD THOMAS
IPC: C08G77/58
Filed: 1952-05-14
Abstract: Co-polymers of organic silicon and titanium derivatives are obtained by hydrolysing, in solution in an organic solvent, a mixture of a monomeric organic derivative of titanium, the organic groups of which are attached to titanium through oxygen or nitrogen, and a compound of the formula R(4 - n)Si(OR)n where each R is a monovalent organic radical and n is 1, 2, 3 or 4, the quantity of water used being insufficient to hydrolyse substantially all the hydrolysable groups. When n is 4 preferably from 0.5 to 1.5 mols. of water are used per mol. of total monomers.  The organo-titanium compound may be an ester, an acyl ester or an organo-amide of orthotitanic acid, e.g. the titanic esters of methanol, ethanol, butanol, lauryl alcohol, allyl alcohol and oleyl alcohol and the tetranaphthyl, tetracresyl, tetrabenzyl, tetraphenyl and tetracinnamyl orthotitanates; the mixed anhydrides of orthotitanic acid and acetic, benzoic, butyric, valeric, stearic, acrylic, atropic, maleic, fumaric, phthalic, cinnamic and furoic acids; and the tetraorganoamides in which the organic groups are ethyl, propyl, butyl, pentyl, octyl, stearyl, oleyl, phenyl or a - or b -naphthyl.  The resins are soluble in aromatic hydrocarbons, the solutions being useful for proofing fabrics.  After impregnation the excess solution is removed, the fabric dried and exposed to moist air.  In examples (1) a solution in benzene of 0.8 mol. tetra-n-butyl orthotitanate and 0.2 mol. di-n-butyl-di-n-butoxy silane was heated to reflux and 0.75 mol. water in anhydrous butanol added dropwise over 4 hours, the reaction being continued for a further 2 hours and the solvents removed to give viscous clear liquid; (2) 0.8 mol. water was added dropwise to 0.7 mol. of the mixed anhydride of orthotitanic and phthalic acids and 0.3 mol. di-n-butyldi-n-butoxysilane in anhydrous butanol at reflux temperature, the reaction being continued for 2 hours after the addition and the butanol then being removed to give a viscous clear copolymer; (3) as in (2) but using instead of the mixed anhydride, an equivalent quantity of titanium tetra-n-butylamide; (4) similar to (2) but using 0.9 mol. water, 0.8 mol. tetra-n-butyl orthotitanate and 0.2 mol. tetra-n-butoxysilane.
Patent GB-1183150-A (GB)
Title: Field Effect Transistor
IPC: H01L29/08
Filed: 1968-03-13
Abstract: 1,183,150. Semi-conductor devices. HUGHES AIRCRAFT CO. 13 March, 1968 [17 April, 1967]. No. 12190/68. Heading H1K. In an IGFET having spaced source and drain regions of opposite conductivity type to the substrate the gate electrode is disposed over part only of the channel region between the source and drain and a surface region contiguous with the drain extends along part of the channel not covered by the gate electrode. The device is produced by oxidizing the surface of an N-type silicon wafer 2, masking and etching to leave a peripheral strip 5 and an annular region (6) of oxide, Figs. 1 and 2 (not shown), diffusing-in boron from the vapour phase to form P-type source and drain regions 10, 12, Fig. 3 (not shown), removing the annular mask and forming a fresh thin oxide layer 6<SP>1</SP> over the surface, vapour depositing Al, Cr or Au over the surface and masking and etching, or alternatively depositing a metal through a mechanical mask, to form an annular gate electrode 14 covering the outer part of the channel between the peripheries of the diffused source and drain regions 10, 12, Fig. 4 (not shown), forming a P-type region 16 in the remainder of the channel by ion implantation, the remainder of the wafer being protected by the edge of the gate electrode and a mechanical mask, Figs. 5 and 6 (not shown), and exposing parts of the source and drain regions 10, 12 and depositing Al to form source and drain electrodes 19, 21, Fig. 7. The gate electrode 14 has an extension (14<SP>1</SP>) to the edge of the wafer where it overlies a tab (5<SP>1</SP>) extending from the original peripheral oxide mask (5) to provide a gate electrode bonding pad, Fig. 4 (not shown). The source and drain electrodes may be formed simultaneously with the gate electrode.
Patent GB-353493-A (GB)
Title: Molding materials and process of manufacture
IPC: C08L97/00
Filed: 1930-04-17
Abstract: A moulding material is prepared by dissolving coal in a solvent therefor, such as petroleum oils, coal or water gas tar or distillates, adding an inert filler and then moulding the whole with or without final removal of the solvent.  The consistency of the solution may be varied by adding thinning agents such as coal tar, water gas oils or even water in which case the coal solution may be in the form of an emulsion.  The coal may be mixed with the dissolving oils or tar and the mixture moulded under heat or heat and pressure, while a coal solution is formed.  Fillers comprise undissolved coal, asbestos, mineral wool, wood flour, mica, vulcanized or unvulcanized rubber, sand, clay, graphite, cork or wood particles, cotton, hair, wool, cellulose or wood fibres. Resins, waxes, oils, asphalts, pitches, bitumens, gums, latex, colouring agents, cement, concrete may be admixed with the composition. Instead of coal solutions, coal solution gels can be produced with a consistency ranging from a stiff dough to a soft butter.  The compositions thus prepared may be used in the preparations of sound, heat and electric insulators, vibration absorbing materials, water, acid, alkali and salt proof materials, laminated structures, moulded boards or slats, electrode carbons, marking crayons, flooring or paving compositions, linoleum, brush settings, phonograph records, tool and cutlery handles, brake shoes (which may be heated or partly carbonized before use), belt or violin bow dressings, binders for cementing granular or fibrous materials for the preparation of sheet pavements and mastics, expansion joints in concrete and stone work. Specification 268,372, [Class 91, Oils &c.], is referred to.
Patent GB-379300-A (GB)
Title: Improvements in or relating to tanning of hides or skins
IPC: C14C3/06
Filed: 1931-04-25
Abstract: 379,300. Two-stage tanning. UNITED SHOE MACHINERY CORPORATION, 140, Federal Street, Boston, U.S.A.-(Assignees of Merritt, M. M.; Middleton, Massachusetts, U.S.A.) April 25, 1931, No. 12278. Convention date, Jan. 12. [Class 76.] In a process cf mineral tanning, e.g. with chromium compounds, a hide or skin is treated with a solution which does not in itself tan during the period of exposure to the solution, and is then slicked out and treated in that condition with an agent which co-operates with that first applied to effect the tanning. By this procedure the fibres are so set that shrinkage is prevented. The first bath may consist, for example, of a solution of potassium bichromate acidif ed with hydrochloric acid the second treatment being effected by sodium thiosulphate (hypo) solution. The treatment in the slicked out condition need not be long enough to complete the tanning, since as soon as the fibres have been sufficiently set the hides may be removed from their supports. Specifications 20535/01, 29368/06, 184,955, [all in Class 76, Leather], and 361,344 are referred to.
Patent GB-233522-A (GB)
Title: Improvements in and relating to self propelled boats
Filed: 1924-05-19
Abstract: 233,522. Turnbull, W. J. May 19, 1924. Driving-arrangements for screw propellers; screw propellers.-A boat is slotted at the stern and bottom and provided with a housing 10 so that the propeller shaft 14 can be raised into the hull, the motor 13 being carried on transverse trunnions 18 and adapted to tilt with the tube 15 in which the shaft runs. A water tight joint is made at the front of the housing by a flexible sleeve 17. The shaft tube 15 has a skeg 16 and also a bracket for the rod 25 employed for tilting the shaft. The @-section housing has bottom and end flanges for attachment to the boat hull and to the engine bed 11.
Patent GB-527956-A (GB)
Title: Improvements in kinematographic apparatus
IPC: G03B41/08
Filed: 1939-04-24
Abstract: 527,956. Kinematograph apparatus. ASKANIA-WERKE AKT.-GES. April 24, 1939, No. 12320. Convention date, April 28, 1938. [Class 97 (i)] In continuous-feed apparatus in which compensation is effected by a rotating prism, and front and intermediate projection &c. lenses having a common axis are provided, one producing a real image intermediate between the film and the screen &c. the optical distance between the intermediate lens and the film is substantially greater than that between the lens and the intermediate image, so as to produce a relatively small intermediate image and permit the use of a small prism ; reflecting means may be provided between the intermediate lens and the film enabling the gate to be placed so that the prism and feed sprocket may have a common spindle, and the reflecting system may eliminate unwanted images. As shown, a camera comprises a front objective 1 producing an intermediate image in an aperture 2, and an intermediate objective 3 produces, with the aid of prisms 21, 6<SP>1</SP>, an image in a gate 7<SP>1</SP> ; the optical distance between the lens 3 and gate 7<SP>1</SP> is substantially greater than that between the aperture 2 and lens 3. A compensating prism 5 and a feed sprocket 8 are mounted on a common spindle 9, and the film 7 is drawn from a spool 10 by the sprocket 8, and delivered to a spool 13 by a sprocket 12, a small film loop being provided between the sprockets. The sprocket 12 is driven by a motor 16 and the sprockets are connected by gears 11, 11<SP>1</SP>. The reflecting surface 6 of the prism 21 is unsilvered, to avoid reflection of images produced by rays passing through faces of the prism which become nearly parallel to the optical axis as the prism turns.