baber/WOPTO huggingface dataset:
Patent GB-621291-A (GB)
Title: Improvements in clamps for belts
IPC: F16G3/00
Filed: 1947-02-13
Abstract: 621,291. Clamps. CHINN, S., and SMITH, L. Feb. 13, 1947, No. 4228. [Class 61(ii)] To repair a broken belt, a clamp, Fig. 1, is attached transversely to the belt near each end, the clamps being drawn together by means of a tightening device attached to a ring 14 on each of the upper clamp members 1. When a pull i s exerted on the clamp in the direction of the arrow A, Fig. 4, the portions 3 and 6 on the upper and lower clamp members 1 and 4 are brought nearer together to increase the bending of the belt 15 between the jaws and prevent slip. Each clamp member comprises flat bars 3 and 6 of equal width and thickness welded to the flat plates 2 and 5 respectively, the plate 5 being wider than the plate 2 to allow for lateral movement. At each end a U-shaped bracket 9 is welded at 10 to the edges of the plate 5, an inwardly-extending lug being provided for a clamping screw 12. In a modification, Fig. 7, the clamp members 43, 44 comprise plates shaped so as to have two relatively offset portions joined by an inclined portion, the bracket 40 being detachable and having a projecting lug 45 shaped to fit the underside of the member 44. In another modification, Fig. 9, the bracket 55 is pivoted to the lower clamp member, a pivot pin 57 passing through the arms of the bracket and through a pair of blocks 58 welded to the underside of the clamp member 52. A transverse catch bar 59 slidable in guides 60 is spring-urged into engagement under the projections 61 on the arms of the bracket by a catch rod 63 slidable in blocks 64, 65 and provided with a thumb piece 66.
Patent GB-857977-A (GB)
Title: A magnetic recording system
IPC: G11B5/02
Filed: 1959-02-06
Abstract: 857,977. Recording digital data. OLYMPIA WERKE A.G. Feb. 6, 1959 [March 13, 1958], No. 4260/59. Class 106 (1). A device for recording on magnetic drums or tape by the " return-to-zero " method has a writing amplifier E which receives the pulses to be recorded from two " and " circuits U 2 , U 3 , the first inputs of which are connected to a clock pulse source T whilst their second inputs are connected to a change-over switch FF controlled by the pulses to be recorded in such a manner that U 3  is operative only when a pulse is present and U 2  is operative when a pulse is absent. The pulses to be recorded are applied to terminal W and synchronizing pulses to terminal TV. At coincident U 1  reverses flipflop FF which restores at time t 2 , as shown in lines e, f of Fig. 2, at the end of the next clock pulse T. " And " circuit U 3  or U 2  therefore responds according to whether there is an input pulse W or not to cause recording theoretically according to line a of Fig. 4. The recording circuit is shown in more detail in Fig. 3, the capacitors C being so chosen that there is a current overswing resulting in the waveform of line b of Fig. 4.
Patent GB-847417-A (GB)
Title: Improvements relating to electric discharge lamp circuits
Inventor: SALMON KENNETH ARTHUR EBURN
IPC: H05B41/282
Filed: 1958-02-10
Abstract: 847,417. Transistor inverter circuits. BRITISH THOMSON-HOUSTON CO. Ltd. Feb. 6, 1959 [Feb. 10, 1958], No. 4272/58. Class 40(6). [Also in Group XXXV] A transistor inverter comprises  transistors 4, 5 connected to the centre tapped primary winding 7 and the feed back winding 8 of a high reactance transformer, the secondary winding 12, 14 of which supplies a low pressure discharge lamp 13, 15. Bias to the transistors is provided by a resistor 10 and capacitor 11 connected across a battery 6 and to the centre top of the feed back winding. Closing a switch 6 connects the positive battery terminal to the transistor emitter electrodes producing a bias voltage across the base and emitter electrodes. One of the transistors became conductive before the other thus oscillations commence. The circuit frequency increases with battery voltage and with secondary load.
Patent GB-652287-A (GB)
Title: Improved method of and apparatus for the transformation of cereals, particularly barly into malt
IPC: C12C1/00
Filed: 1948-02-13
Abstract: 652,287. Drying malted grain. SKANTZE, O. A.. Feb. 13, 1948, No. 4339. Convention date, Feb. 14, 1947. [Class 34(ii)] [Also in Group VI] A kiln used in a process of drying malted grain (see Group VI), consists of a vertical shaft 34, down which the material falls, smaller in cross section at the top than at the base and having side walls of perforated plates 35, 36 through which warm air, e.g. from the germination section, is passed backwards and forwards by means of fans 41, 44, 48 within an outer casing of the shaft eventually to atmosphere. At the bottom of the shaft a rotating roll 38 provided with recesses 39 discharges the dried material.
Patent GB-475315-A (GB)
Title: Improvements in side delivery autographic registers
IPC: B41L5/04
Filed: 1937-02-13
Abstract: 475,315. Autographic recorders. UNITED AUTOGRAPHIC REGISTER CO. Feb. 13, 1937, No. 4354. Convention date, Feb. 24, 1936. [Class 106 (i)] In an autographic recorder having a sidedelivery shoot, the strips are aligned by longitudinally reciprocating fingers while the upper feed roll is raised. The invention is applied to an autographic recorder of the kind in which folded original and duplicate strips 8 pass from a supply compartment over a platen A<1> and between feed rollers 15, 25, whence the upper strip or strips pass to a storage compartment A<3> while the bottom strip is deflected into a side delivery shoot A<4> and is torn off. The strips are now aligned at the end of each machine operation by an arm 47, that enters perforations in the strips and is shifted to the left with its supporting slide 33 by means of a cam 42. The strips are freed, to allow the aligning movement, by raising the shaft 22 of the upper rollers 25 against the action of springs. This is effected by a cam 32 through a bell-crank 29, the horizontal arm of which passes beneath one end of the roller shaft 22.
Patent GB-433148-A (GB)
Title: Improvements in or relating to lockers or cabinets for storing trays, receptacles containing record cards, ledgers and the like
IPC: A47B88/14
Filed: 1934-02-10
Abstract: 433,148. Cabinets. CONSTRUCTORS, Ltd., and FINER, H. J., Tyburn Road, Erdington, Birmingham. Feb. 10, 1934, No. 4424. [Class 52 (i)] In a filing cabinet the door whereof can be lowered to form an extension of the floor, the cabinet has a projecting lip 8 and an abutment 5b serving to support the door cantilever fashion and relieving the hinges 11 of strain. Antifriction devices 12 may be provided on the floor and door faces and the door edges may interlock with the cabinet wall to form a dustproof closure.
Patent GB-660900-A (GB)
Title: Improvements in or relating to reaction products of 4-vinylcyclohexene dioxide
IPC: C07D303/16
Filed: 1949-02-18
Abstract: 4-Vinyl-cyclohexene diepoxide reacts with carboxylic acids RCOOH to give hydroxy-esters, one or both of the epoxide rings being opened, depending on the proportions of the reactants.  The reaction is preferably carried out between 100 DEG  and 150 DEG  C. (e.g. 110-120 DEG  C.) in the presence of 1-8 per cent by weight of a strong inorganic or organic base, such as potassium and lithium hydroxides, guanidine, N-alkyl guanidines, amidines, and quaternary ammonium hydroxides, e.g. tetramethyl- and trimethylbenzyl-ammonium hydroxides.  When using catalysts of this type and concentration, one or both of the epoxide rings is replaced by the groups RCOO and HO, formul  of the various possible isomers being given.  On the other hand, isomers are formed, probably tetrahydropyran derivatives (suggested formula given), (a) by using an insufficient amount of catalyst, (b) by using a weaker base as catalyst, e.g. a primary, secondary or tertiary amine such as quinoline, (c) by omitting the catalyst, or (d) by working at a higher temperature.  An inert solvent may be used for the reaction, e.g. methyl isobutyl ketone or heavy naphtha.  Prolonged heating of the reaction mixture gives different products, probably by isomerization and/or polymerization. Examples show the reaction of 4-vinyl-cyclohexene diepoxide with one or two molecules of acetic, crotonic, sorbic, stearic, oleic, benzoic, and linseed oil acids.  The free hydroxy groups in the products may be esterified to give di-, tri- and tetra-esters.
Patent GB-1303108-A (GB)
IPC: G03B23/18
Filed: 1970-01-30
Abstract: 1303108 Slide projectors EASTMAN KODAK CO 30 Jan 1970 [31 Jan 1969] 4484/70 Heading G2A A stack-loading slide projector has twin projection lenses 46, 47 mounted in a block 41 for movement transversely to the optical axis in unison with the feed of slides such as 15b, 15c, 15d, 15e through an elongated projection aperture in gate member 12 whereby a lap-dissolve is provided between successively projected slides. Slide changer 17 has a finger (58), Fig.2 (not shown) engaging block 41 whose movement thereby displaces the changer 17 against spring 21 in a reciprocating manner to transfer slides in tandem through gate 12 from magizine 13 to magazine 14 Block 38 has end plates apertured at 39, 40 and with two pairs of part cylindrical guides 44 which engage lips 42 on the end-faces of lens block 41. A pinion gear driven by motor 68 through a onerevolution clutch 62 controlled by handle 63, extends upwardly through a recess in block 38 to drive the lens block 41 by engaging a spur gear 51. Block 41 is driven horizontally until halted by the engagement of guides 44 with the curved portion of lips 42 whereupon the spur gear drive rotates the block about the optical axis to take the invented starting position. Clutch 62 then disengages until actuated again by handle 63 when the next slide is to be projected. A splined connection between the pinion gear (58) and spur gear 51 permits axial focusing displacement of block 38 in dove-tails 35.
Patent GB-101922-A (GB)
Title: Improvements in Chimney Terminals, Ventilators and the like.
Inventor: COLLINS ALFRED JAMES
IPC: F23L17/10
Filed: 1916-03-28
Abstract: 101,922. Collins, A. J. March 28, 1916. Chimney &c. tops.- A revolving cowl consists of a cylinder a, open only a.t the top and bottom, furnished with vanes b attached to its outer surface and propeller blades i attached to its inner surface and to the tube d surrounding the spindle g. The tube d depends from a cross-bar c and contains a glass bearing e secured by a nut f.
Patent GB-444775-A (GB)
Title: Improvements in and relating to cathode ray tubes
IPC: H01J29/74
Filed: 1935-02-13
Abstract: 444,775. Cathode-ray tubes. BOSCH, F. J. G. VAN DEN, 14, Normans Buildings, Central Street, London. Feb. 13, 1935, No. 4627. [Class 39 (i)] The plates of each of two pairs of plates for deflecting the ray horizontally and vertically are coated on their adjacent faces with a substance readily emitting electrons when slightly heated, for example, potassium or strontium oxide, lime, barium oxide, calcium iodide, calcium fluoride or caesium. The plates 5 .. 8 may be parallel rectangles or may diverge outwardly away from the cathode as shown, each plate being a rectangle bent about a line 11 so that the plates are parallel for one-third of their axial length. The plate 7 is earthed and the plate 5, a second anode 4, a first anode 3, a cathode 1 and a Wehnelt cylinder 2 are maintained at increasing negative potentials. Operating details are specified and it is stated that electrons from the cathode strike the plates and heat them and produce a secondary emission from them greater than the electron current to them, and that a very small fluorescent spot is produced on the screen of the tube. The tube may contain rare gas such as argon, neon or helium or gas of low molecular weight such as hydrogen.
Patent GB-1383198-A (GB)
Title: Hot rolling of metals
IPC: C10M173/00
Filed: 1971-02-16
Abstract: 1383198 Rolling metals SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 14 Feb 1972 [16 Feb 1971] 4735/71 Heading B3M [Also in Division C5] In a process of hot rolling metals, the rollmetal interface is lubricated with either a non- aqueous composition comprising of animal or vegetable oil (e.g. blown or unblown whale oil, rapeseed oil or cottonseed oil) and 0À1-10 wt. per cent, based on the total composition, of a water displacing agent, and, optionally, mineral oil, the animal or vegetable oil constituting at least 20% of the total composition, or a mixture of such a composition with water. The water displacement agent, i.e. an oil-soluble compound having greater affinity to metal surfaces than has water, may be a metal hydrocarbyl sulphonate or over-based sulphonate. Extreme pressure additives may be present, e.g. 0À1 to 25 wt. per cent of metal hydrocarbyl thiophosphates or sulphurized or sulphochlorinated fatty oils. The composition may also contain 25-75 wt. per cent of mineral oil or a blend thereof with polyolefines and/or ester oils or polyoxyalkylenes, e.g. polyethylene glycol. Aqueous dispersions of compositions based on a mixture of mineral oil and rapeseed oil are tested on hot steel rolling.
Patent GB-102663-A (GB)
Title: Improvements in Locking-handles for Kit Bags and the like.
Inventor: JONES ARNOLD GILBERT
IPC: E05B65/52
Filed: 1916-03-31
Abstract: 102,663. Jones, A. G. March 31, 1916. Kit - bags. - A locking-handle for kit-bags comprises a bow-shaped frame a and a non-removable bar g, which is passed through the eyelets round the mouth of the kit-bag and engaged in a slot f. The bar g is secured by a padlock engaging holes e, d in the bar and frame.
Patent GB-752811-A (GB)
Title: Improvements in signal tabs for the printing plates of series printing machines
Inventor: BOTTCHER ALBERT CHARLES
IPC: B41L47/02
Filed: 1954-02-18
Abstract: 752,811. Printing-surfaces. ADREMA, Ltd. Feb. 8, 1955 [Feb. 18, 1954], No. 4786/54. Class 100 (2). [Also in Group XV] A signal tab adapted to be removably mounted on a printing-plate 11 comprises a pair of limbs 1, 2 and 4, 5 resiliently hinged together at 3, their free ends being biased away from one another, at least one of the limbs being formed with a projection 9 extending towards the other limb and adapted to engage the face of that other limb when the tab is in position on the plate whereby to prevent the tab from becoming distorted into a condition in which the two limbs lie nearly flat against one another. As shown the projection 9 is formed on the upper portion 4 of the limb 4, 5, the lower portion 5 of the limb being of reduced width with respect to the portion 4 and adapted to be inserted in a slot 15 in the flange 13, 14 of the plate 11. A locking tongue 6 is provided on the portion 5 of the tab. The limb portion 1 of the limb 1, 2 is also of reduced width with respect to the portion 2 for insertion into the slot 15. Specification 684,309 is referred to.
Patent GB-266381-A (GB)
Title: Improvements in supplying pulverulent fuels to internal combustion engines
IPC: F02B45/02
Filed: 1927-02-21
Abstract: 266,381. I. G. Farbenindustrie Akt.- Ges. Feb. 20, 1926, [Convention date]. Powdered fuel engines. - The fuel is fed through a valve to a small supply chamber which communicates through a valve with the combustion chamber, the valves being operated so that one is open when the other is closed. The fuel may be fed to the supply chamber by any means, e.g. by gravity, or by a piston or worm conveyer, which may be coupled to the inlet valve. As shown, the fuel falls from a storage vessel through a pipe 1 into a chamber 2 and, on the opening of the valve 3, is pushed by a piston 4 into the supply chamber 5, Figs. 1 and) 2, Fig. 2 being a section on the line A-B, Fig. 1, The valve 3 is provided with a slot 7 opening into a nozzle 8 through which the fuel is blown into the combustion chamber by compressed air when the valve 3 closes, the slot 7 being closed by the side of the chamber 5 when the valve 3 is open. The compressed air is supplied to the chamber 5 through a needle valve 6. For starting, liquid fuel from a nozzle 11 may be injected into the supply chamber 5 by the compressed air. The mouth of the nozzle 8 may be provided with spiral mixing grooves, or a mixing-device provided with tangential inlets 10 may be mounted over the end of the nozzle, in which case hot air from the combustion chamber is drawn in through the inlets 10 and whirls the fuel. A baffle may be provided at the end of the mixing device 9. The nozzle 8 may be replaced by channels on the periphery of the valve or in the wall surrounding the valve, the slot 7 being replaced by an annular groove around the valve, or the nozzle may be fixed to the wall of the combustion chamber.
Patent GB-593134-A (GB)
Title: Method of producing acetylsulphanilyl chloride
IPC: C07C309/51
Filed: 1944-03-15
Abstract: Acetyl sulphanilyl chloride in the form of an aqueous slurry is dried by adding to the slurry a water-immiscible organic solvent, in an amount not less than 1/4 of the weight of the acetyl-sulphanilyl chloride mechanically removing the major portion of the water and drying the resulting cake.  It is preferred to add small amounts of surface active agents such as salts of a dialkylsulphosuccinic acid, for example dioctylsulphosuccinate, and salts of higher alkyl sulphuric acids, for example sodium lauryl sulphate, and the triethanolamine ester of lauric acid.  Water-immiscible organic solvents which are mentioned include petroleum hydrocarbons, toluene, ethylene dichloride trichlorethane, and esters such as isopropyl acetate or secondary butyl acetate.  The principal solvent may be associated with higher boiling inert organic liquids such as high-boiling petroleum hydrocarbons.  Examples are given of the process of the invention using as the organic solvents: (1) toluene in the presence of lauryl sulphate; (2) mineral spirits predominately aliphatic character; (3) isopropyl acetate; (4) isopropyl acetate and aromatic petroleum product; (5) ethylene dichloride; (6) 1 : 1 : 2-trichlorethane; (7) secondary hexyl acetate and an aliphatic petroleum spirit; (8) as in Example (7), but using secondary butyl acetate instead of secondary hexyl acetate.
Patent GB-1246724-A (GB)
Title: Improvements in or relating to heating devices
Inventor: LAUCK PETER III
IPC: H05B3/34
Filed: 1969-01-29
Abstract: 1,246,724. Controlling electric heating elements. J. P. STEVENS & CO. Inc. 29 Jan., 1969, No. 4882/69. Heading H5H. [Also in Division G3] An arrangement for heating a selected area, e.g. an electric blanket, floor warming panel &c. comprises an insulated electrical heating element 7, arranged between first and second outer layers of an electrically non-conductive fabric, in series with a triac 16 across a main supply 15, 15<SP>1</SP> to which is also connected a temperature control means, e.g. a thermistor 17, mounted in the second layer of the fabric. Thermistor 6 is connected to an R.C. network R1, R2, C1, and controls the triac 16 with variable angular delay through a diac 18. Where the arrangement is used for a blanket the top layer 1 may be of decorative material and form a bedspread overhanging the sleeping area and the heater 7 is arranged between the bottom layer which carries the thermistor and the top. The heater may be of flexible printed circuit configuration. The top layer may include an aluminium coated sheet to reflect heat downwards and an adjustable control (10) comprising a variable resistor 11 may be mounted at a suitable position. The heating element, thermistor, and control (10) may terminate in a plug (20), the mating socket (12) of which houses the remainder of the circuit elements. In an alternative arrangement the temperature control (10) which may include an indicator light and a control switch may be mounted on the socket 12. The circuit elements may also be formed by printed circuit techniques. The three layers of the blanket may be detachable from each other for cleaning purposes by zippers, snaps or "velevo" binders, or may be secured by sewing or thermoplastic bonding.
Patent GB-159130-A (GB)
Title: An improved arrangement of the high tension insulators of electric precipitating installations
IPC: H01B17/14
Filed: 1921-02-11
Abstract: 159,130. Siemens - Schuckertwerke. Feb. 11, 1920, [Convention date]. Gases, electrically precipitating s u s p e n d e d particles from. - In a dust precipitator, deposition on an insulator is prevented by means of a conducting cover 3 connected to the high-pressure conductor 2 and extending within a second conducting cover 4 which surrounds the foot of the insulator 1 and is earthed or connected to the other supply conductor. Discharge is prevented by avoiding sharp angles and by beading the edges 5, 6 of the covers. The covers may be cylindrical or conical.
Patent GB-364897-A (GB)
Title: Improvements in hose coupling
IPC: F16L33/24
Filed: 1931-02-16
Abstract: 364,897. Hose-pipe couplings. METAL HOSE & TUBING CO., Inc., 253, Tillary Street, Brooklyn, New York, U.S.A. Feb. 16, 1931, No. 4914. Convention date, Feb. 25, 1930. [Class 99 (i).] In a hose-pipe coupling of the kind in which the hose-pipe L is drawn on to the tapered spigot 5 of a union H by an internally screwthreaded sleeve G, and the sleeve is secured to the hose-pipe by screwing thereon, recesses 11 are formed causing interrupted screw-threads on an intermediate portion of the sleeve thus providing cutting edges to facilitate formation of a screw-thread in the canvas cover of the hose-pipe. The end portion 15 of the sleeve has an uninterrupted screw-thread. Specification 193,410, [Class 99 (i), Pipes and tubes, Joints &c. for], is referred to.
Patent GB-725694-A (GB)
Title: Improvements in and relating to electrical dynamometers
Inventor: GION LEON PIERRE
IPC: G01L5/00
Filed: 1953-02-23
Abstract: 725,694. Electrical dynamometers.  COMPAGNIE GENERALE D'ELECTROCERAMIQUE. Feb. 23, 1953, No. 4955/53. Class 40 (1). A wire strain gauge and electromagnetic strain gauge are combined in a single instrument in a stressed member to measure the stress therein. Both gauges are subjected to the same displacement with the purpose of getting a reliable but coarse indication of the absolute value of the force and a sensitive indication of small variations from instant to instant. The instrument comprises a cylindrical body hollowed out in the middle leaving two thin drawbars 3, with broad fillets connecting the ends 4 and 5 of the original cylinder, which are formed into attachment lugs 2. The resistance strain gauges 6 are mounted on the drawbars and are electrically connected in one arm of an A.C. bridge, a similar gauge 7 mounted transverse to the line of stress on the end 4 being connected in the adjacent arm for temperature compensation. The more sensitive gauge consists of an electrical transducer of the differential transformer type, though other transducers may be used instead. The coils are carried on strip 16, which is bolted to end 4, while the magnetic bar 13 bears on a hard ceramic plate 24 cemented to the end 5, or is rigidly attached to it and moves relative to the coils as the member is stressed. Stability of the indications is ensured by enclosing the hollow parts in a cylinder 18, the ends of which are made airtight by silicone rubber bands 19. The electrical connections are made through metallized ceramic inserts in an insulating plate 27, the joint with the cylinder being made airtight by seal 28, the contained air being kept dry by silica gel. An annular ring 21 is welded to 18 around the plate 27, and fitting tightly in this is a cup-shaped member 30 threaded externally. The cavity formed by this cup and plate 27 is filled with a silicone petroleum jelly, and the connections run through an airtight plug 29 to a chamber formed by a further cup shaped member 32 threaded on 30, and leave through the base of the cup in a polyvinyl chloride sheath. Dry air is circulated from the receiving end of the cable through this sheath, returning through the annular gap between sheath and outer case. Detailed construction of this cable ending is shown in Figs, 2 and 3.