baber/WOPTO huggingface dataset:
Patent GB-338632-A (GB)
IPC: B64C3/50
Filed: 1929-09-05
Abstract: 338,632. Gilbert, W. V. Dec. 5, 1928, [Convention date]. Aeroplanes; planes, arrangement and construction of; controlling.-An aeroplane has wings provided with converging main and auxiliary spars the inner ends of which are movably connected to the body of the machine so as to be capable of limited angular movement, such as by means of a resilient, ball or pivot joint, and the other ends of which are similarly movably connected to each other. In an application to a glider, Figs. 1 and 2, 1 is a ring or body frame adapted to be positioned round the body of an ice skater. Main spars 6 are arranged horizontally on each side of the frame 1 and their ends are passed through slots 5 in divided lugs 4, Fig. 7. They are located by rubber washers 10, nuts 11 screwed to the spar, and by rubber blocks 9 which fit between the lugs 4 and a bi-convex disc 8 threaded on the spar. A crank handle 12 is provided for adjustment of the spar 6. The outer portion of spar 6 is rectangular or oval in cross-section. A pair of auxiliary spars 19 are connected at their inner ends to a hub 17 which is located between springs 18, Fig. 10, upon a pin passed through slotted ears 14, 15 formed on a bracket 13 which extends rearwardly and downwardly from the frame 1. The outer ends of spars 6 are formed with sockets 20, Fig. 11, accommodating rubber plugs 22 which are secured to the ends of the spars 19. Ribs 23 are threaded on the spars 6, 19 being provided with squared holes at the leading edge to engage the spar 6 and slotted holes to allow for movement of the spar 19; the ribs may have forwardly projecting portions or may terminate at the spar. In a modification, Fig. 3, additional stay rods 41 are connected at their inner ends to a frame 26 to which main spars 28 and auxiliary spars 33 are connected in the manner shown in Figs. 7 and 10 respectively. In a further modification the auxiliary spars 33 are connected to pins 37, Fig. 14, by couplings such as shown in Fig. 7 so as to be capable of independent movement. The connection between the outer ends of the spars and rods 28, 33 and 41 is similar to that shown in Fig. 11. The ribs may extend to connect the stay rods with the spars. The main spars are adjusted by means of a treadle 45 which is linked to the spar and extends horizontally above a platform 46 which supports the pilot. The stay rods 41 are adjusted by screws 49 which thread through universally mounted balls carried by the frame 26. The stay rods may be of telescopic construction comprising two parts, one sliding within the other against the restraint of a coil spring.
Patent GB-1464181-A (GB)
Title: Manufacture of articles of foamed olefin polymers
IPC: B29C67/20
Filed: 1974-06-19
Abstract: 1464181 Manufacture of shaped articles from polyolefins BASF AG 19 June 1974 [20 June 1973] 27097/74 Heading C3C A process for the manufacture of an article comprises heating to temperatures at which they sinter and compressing by 40 to 80% of their original bulk volume, foamed cross-linked particles of an olefin polymer having an X-ray crystallinity of more than 20% by weight at a temperature of 25 C. and a melt index of from 0À1 to 200 g./10 minutes (measured according to ASTM D1238-65T at 190 C./2.16 kg.) in a mould, the pressure in the mould being reduced prior to, or during in, compression of the foamed particles to a value which is at least 50 mm. of Hg below ambient atmospheric pressure. The olefin polymer may be an ethylene homopolymer or copolymer containing at least 50% by weight of ethylene, which has been cross-linked to an extent of 10-85% by weight by high-energy radiation. The polymer particles, which may have a diameter of 3-20 mm. and a bulk density of 10-60 g./l., are heated to a temperature of 10-100 C. above the crystallite melting point of the polymer. The mould may be a gas-tight mould having at least one movable wall whereby the contents may be compressed, or maybe a gas-tight channel bounded by at least one endless belt arranged so as to compress the contents of the channel. In the Examples (1) ethylene/t-butyl acrylate copolymer particles were moulded to give a product of density 26 g./l.; (2) (i) polyethylene, (ii) ethylene/vinyl acetate copolymer (iii) ethylene/methyl methacrylate copolymer particles were moulded and (iv) polyethylene was moulded without the pressure reduction which yielded a product of 5% interparticular volume.
Patent GB-153171-A (GB)
Title: Improvements relating to chain-track vehicles
IPC: B62D55/084
Filed: 1919-11-04
Abstract: 153,171. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Nov. 4, 1918. Endless-track vehicles. - The upper runs of the tracks are supported and the tracks tensioned by semi-elliptic springs 22 carried by the trucks 11 and fitted at each end with a bracket 35 carrving a roller 24.
Patent GB-1335864-A (GB)
Title: Phenanthrotriazolyl derivatives
IPC: C09B23/14
Filed: 1971-04-19
Abstract: 1335864 Optically brightened polymers SANDOZ Ltd 19 April 1971 [17 April 1970] 27136/71 Headings C3P and C3R [Also in Divisions C2 C4 and D1] Addition and condensation polymers are brightened by the addition of phenanthrotriazolyl derivatives. In one example 100 parts of polypropylene granules are powdered with 0À01 parts of a derivative having the following formula in which R 1 -R 4  are hydrogen. The polypropylene is then processed in a mill at 144-220 C. and subsequently injection moulded or regranulated. The polypropylene can be replaced by low- or high-density polyethylene, polystyrene or cellulose acetate. In a second example a solution of 0À005 parts of a compound having the same general formula above in which R 1  is and R 2 -R 4  are H is stirred into 100 parts of moulding composition containing 65 parts of polyvinyl chloride, 35 parts plasticizer and 2% of the weight of the polymer of stabilizer. The composition is treated in a roller mill for 10 minutes at 150-160 C. and the mass is drawn off as a film. In the examples using condensation polymers polyamide 6(poly-#-caprolactam) granules are powdered with 0À01-0À05% of its weight of the compound given in the first example above. The granules are then melted under nitrogen for 30 minutes at 300 C., stirred for 15 minutes at this temperature and then brought to the spinning temperature of 285 C. The spun filament shows violet fluorescence. Polyester or polypropylene can be used in place of polyamide. In a further example 100 parts of polyterephthalic ethylene glycol ester granules is mixed with 0À01 part of the following derivative melted at 280-300 C. and extruded. The filament shows an intense reddish violet effect.
Patent GB-428120-A (GB)
Title: Improvements relating to the pulping of fibrous and cellular materials
IPC: D21C7/02
Filed: 1934-09-21
Abstract: 428,120. Digesters. DE LA ROZA CORPORATION, 112, Wall Street, New York, U.S.A. Sept. 21, 1934, No. 27208. Convention date, Sept. 21, 1933. [Class 64 (i)] [See also Group VIII] A continuously acting digester comprises a slightly inclined perforated tube 6 rotated in bearings 5 in a fixed casing 1 having expansion joints 2 and a dome 3 with a relief valve 4, a thermo-couple 70 which controls contacts for a steam valve 41, and a float 72 which actuates rheostats 73 such that if the float rises motors 20 &c., reduce the supply of raw material, &c., and increase the speed of a rotating outlet valve 52. The proportions of the digester 1 and its inlet 17 are stated.
Patent GB-807554-A (GB)
Title: Improvements in aircraft brake mechanism
Inventor: KNIGHTS RICHARD NORTHAM
IPC: B64C25/42
Filed: 1955-09-23
Abstract: 807,554. Aircraft undercarriages. DOWTY EQUIPMENT Ltd. Sept. 24, 1956 [Sept. 23, 1955], No. 27232/55. Class 4. [Also in Groups XXXIV and XXXVIII] In a ground engaging brake mechanism for an aircraft undercarriage system, the undercarriage comprises a retractable telescopically slidable leg 1 ; the lower component 3 of which supports the axle 5 for a pair of leading wheels 6, while a lever 7, also pivotally supported on axle 5 at its forward end, supports, at its trailing end, a second axle 8 on which are mounted a pair of trailing wheels 9. A liquid spring type shock absorber 12 is connected at its lower end to the centre of lever 7 and at the upper end to the upper component 2 of undercarriage leg 1. To the underside of lever 7 is an extensible bag 22 and a ground engaging brake shoe 14 connected to lever 7 by links 16 and 17. The brake is operated by depression of pedal 38 which operates through a rack and pinion device 39 and a shaft 40 to turn contact arm 41 of an input potentiometer 42 in accordance with the linear movement of pedel 38. A feed-back potentiometer 43 is provided such that the contact arm 44 is co-ordinated with the pivotal movement of the link 17. Both potentiometers are provided with leads leading to an electrical servo control mechanism 50 which connects the potentiometers in a bridge network responsive to any electrical unbalance between potentiometers 42 and 43 to operate either solenoid 36 or solenoid 37 to regulate fluid pressure in extensible bag 22 and brake releasing jack 24 respectively for actuation of the friction element 15 towards and away from the ground in accordance with displacement of pedal 38. Specifications 670,889 and 728,176 are referred to.
Patent GB-1408839-A (GB)
Title: Electrostatic transducer assemblies
IPC: H04R19/00
Filed: 1973-06-07
Abstract: 1408839 Electrostatic transducers SONY CORP 7 June 1973 [17 June 1972] 27244/73 Heading H4J  An electrostatic transducer such as a loudspeaker comprises two transducer units A, B (Fig. 1) each having a pair of apertured plates 21a and 22a, 21b and 22b with a conductive diaphragm 23a, 23b interposed. The units A, B form an assembly and each unit A, B provides an outside and an inside plate of the assembly. A D.C. bias source 38 is connected to both diaphragms 23a, 23b. Plates 21a and 22b are together connected to one side 36 of an audio frequency source 30 while plates 21b and 22a are connected to the other side 37.  The plates 21a, 22a, 21b, 22b are of epoxy resin, acrylic resin or other plastics material and have conductive coatings 25a, 26a, 25b, 26b on the inner surfaces. The diaphragms 23a, 23b are of silver coated polyethylene terephthalate. Two units A, B are in an enclosure 51 (Fig. 5) closed by a cover 52. Each unit is secured together separately (Fig. 4, not shown). The enclosure 51 has a rear chamber 58 which may be filled with sound absorbent material. The plates, referenced 55a, 56a, 55b, 56b have apertures 65a, 66a, 65b, 66b to permit insertion of posts 56 for location purposes. A terminal (71) Fig. 2 connects to both diaphragms and is fed out from enclosure 51 through an aperture 77. Other leads from the fixed plates are also fed out through aperture 77. The cover 52 is screwed into cylindrical portion 55 of enclosure 51 so that projections 54 and 63 are engaged with each other in the manner of interrupted screw threads. Cover 52 has an opening 64.
Patent GB-444116-A (GB)
Title: Improvements in or relating to loading chutes
IPC: B65G69/00
Filed: 1934-09-25
Abstract: 444,116. Shoots. INTERNATIONAL COMBUSTION, Ltd., ROBEY, E. W., and BINGHAM, A. E., Aldwych House, Aldwych, London. Sept. 25, 1934, Nos. 27506/34 and 21491/35. [Class 78 (i)] In a tubular shoot, for example for delivering coal to a bunker, at least one wall is arranged so that its upper end is fixed against vertical movement whilst the other side or sides are movable relatively thereto whereby the feeding point remains always at the same height and the shoot is completely closed between the loading and discharge points irrespective of the height of the material accumulating at the bottom of the shoot. In the form shown in Fig. 1 three sides are suspended from a crane and the fourth side is fixed at its upper end to a feed shoot 7 and comprises a shutter 5 having rollers 12 guided in the remaining sides and having its ends connected by ropes 8 passing over pulleys 9, 10. As the main part of the shoot rises and falls so more or less of the shutter is extended. Control of the motor operating the hoisting crane is effected in part by feelers 16 sensitive to the height of the heap in the bunker 20 and in part by pads 17, 18, 19 containing contacts sensitive to the height of the material accumulating in the shoot. In the form shown in Fig. 5 the main part of the shoot remains stationary and two walls 25, 26 are in the form of shutters which are rolled up on and unrolled from drums 33 operated by a motor 34 which is controlled by floats 36 sensitive to the height of the accumulating heap and by pads 38, 39 containing contacts sensitive to the height of material in the shoot. The shoot may be raised and lowered hydraulically, the valves being actuated by an electric motor.
Patent GB-1146482-A (GB)
Title: New organoaluminium complex compounds
IPC: C08F10/00
Filed: 1966-06-20
Abstract: 1,146,482. Organoaluminium complexes. STUDIENGESELLSCHAFT KOHLE m.b.H. 20 June, 1966 [5 July, 1965], No. 27524/66. Heading C2J. The invention comprises compounds of formula [Y(A 1 R 2 ) n ]<SP>(2-n)-</SP><SP>[M]</SP>m<SP>+</SP> or ether addition products thereof, where Y=a polycyclic aromatic hydrocarbon with up to 6 rings (preferably 2-3 rings) in the molecule, R= alkyl with 1-6 carbon atoms, M=an alkali metal (preferably Li, Na or K), n= 1 or 2 and m+n= 2. The compounds may be prepared by reacting about two equivalents of alkali metal M, about one equivalent of aromatic hydrocarbon Y and about two equivalents of R 3 Al or R 2 AlHal or ether addition product thereof. The reaction may be carried out in an ether, preferably THF, diethyl ether, dimethyl ether, dimethoxyethane, diglyme or triglyme. The reaction is carried out at a temperature below 100‹ C., preferably between - 50‹ and +40‹ C., under pressure if necessary to keep the ether in liquid form. The process may be carried out in two stages; the first as described to give the complex when n = 1 and then reaction with more R 2 AlHal to give the complex when n=2 containing no alkali metal. Ether complexed in these compounds may be removed under vacuum, if necessary with mild heating.
Patent GB-390217-A (GB)
Title: Improvements relating to boiler feed water heaters
IPC: F22D1/32
Filed: 1931-10-03
Abstract: 390,217. Heating feedwater. WYNDHAM, J. N., 34, Pencisely Road, Cardiff, WYNDHAM, S. L., Crofta, Croesvaen, near Cardiff, and WYNDHAM'S MARINE PATENTS (1928), Ltd., 32, Lime Street, London. Oct. 3, 1931, No. 27545. Addition to 289,301, [Class 64 (i), Heating liquids &c.]. [Class 64 (i).] In a feed heater of the kind in which the water flows through a casing 1 over steamheating tubes 15, and comprising a return conduit for the cooler water, as described in the parent Specification, the water inlet 11 is arranged directly in the return conduit 2 to induce a circulation along the lower part of the heater. The water enters the conduit through a nozzle. A partition 12 arranged between the limbs of the U-shaped steam tubes and extending nearly to one end of the casing is secured at the other end to the tube plate 4, and is slightly curved upwardly opposite the inlet from the return conduit.
Patent GB-260105-A (GB)
Title: Improvements in the manufacture of detachable chain links
IPC: F16G13/07
Filed: 1925-11-03
Abstract: 260,105. Strathern, A. G. Nov. 3, 1925. Chains. - In the manufacture of chains having dietachable links comprising side bars 4, an end bar 2 of round section, and a hook-like end bar 1 adapted to receive the bar 2 of the adjacent link, each link is formed as a drop forging, the bearing in the end bar 1 being drilled out. The gap 5 of the hook may be formed by stamping before the interior of the hook is drilled out. or the drilling may be performed first and the gap then milled out. Alternatively, two grooves 6, Fig. 4, are first stamped in the metal to such a depth that the intervening strip 7 of metal may drop out or be easily knocked out after the drilling operation. The end bar 2 may be pressed or ground to round section.
Patent GB-1220703-A (GB)
Title: An improved process of preparing thermosetting laminates
IPC: H01B3/30
Filed: 1968-06-11
Abstract: 1,220,703. Laminating. PHOTOCIRCUITS CORP. 11 June, 1968 [6 Nov., 1967], No. 27605/68. Heading B5N. An improvement in a process for laminating an assembly comprising a thermosetting resin comprises measuring the electrical impedance of the thermosetting resin while applying heat, to ascertain its lowest point and applying full laminating pressure at or immediately subsequent to the time at which the lowest electrical impedance is reached. The process may be effected in a press having an electrical sensing means e.g. a voltmeter, ammeter or ohmmeter which in use is connected to a pair of electrodes embedded in the laminate components. The assembly may comprise a plurality of sheets of paper or of glass fabric impregnated or coated with a B-stage thermosetting resin e.g. an epoxy resin. In a preferred embodiment, a sheet of copper is included in the assembly to form an outer surface of the laminate.
Patent GB-1352807-A (GB)
Title: Exploration of media by the transmission of energy signals
IPC: G01V1/20
Filed: 1972-06-18
Abstract: 1352807 Wave-energy exploration of a medium SOC NATIONALE DES PETROLES D'AQUITAINE 13 June 1972 [14 June 1971] 27671/72 Heading H4D A medium is explored by transmitting into it, from a plurality of mutually-spaced sources, a long signal consisting of a series of approximately equal energy pulses which, after reflection in the medium, are detected and recorded by at least one receiver system as signals which are crosscorrelated with the long signal to determine the travel time of the signal, the moments of emission by each source being such that if the combined sequence of moments of emission by all the sources is cross-correlated with the sequence of moments of emission by one source a function is obtained covering a time period as long as the longest travel time of interest, the ratio of the amplitudes of the maximum peak and a secondary residue of this function being approximately the same as the ratio of the amplitudes of the maximum peak and a secondary peak of the autocorrelation function of the sequence of moments of emission by said one source. This enables the received signal component resulting from use of the one source to be distinguished in the recorded signal, while allowing several sources to be used effectively simultaneously for economy of exploration time. As applied to land or marine seismic surveying, three sources may be disposed in a horizontal line normal to a linear array of seismometers and advanced ahead of the array, or two sources each advanced ahead of a linear array of seismometers may be used, the two arrays being mutually parallel and normal to a line joining the two sources. The received signal component due to any one source is identified by crosscorrelating the recorded signal with the sequence of moments of emission by that one source.
Patent GB-276803-A (GB)
Abstract: 276,803. Trade, Secretary of the Board of, and Boys, C. V. July 22,1926. Thermometers. - A mechanically-operating differential thermometer, particularly for use in a recording calorimeter of the kind described in Specifications 180,080 and 195,180, comprises a rigid foundation framing carrying the fixed abutments for a hot and a cold expansible vessel, and the fulcrum of the second motion-magnifying lever of a compound lever system, so that movements of the operative point of the said lever are rigidly determined solely by the difference between the temperatures of the two vessels. The two expansible vessels 1, 2 are suspended by strips 3, 4 of badly-conducting material which hang by means of cranked pieces 6, 7 and screw pivots 8, 9 from the first motion-magnifying lever 5, this lever being suspended by an adjustable spring 12 from a bracket 14 bolted to the rigid frame 15. The vessels 1, 2 are prevented from rising by struts 16, 17 of glass &c. passing into hollow screw supports 18, 19 secured to the frame 15 by locknuts 20, 21. The vessels 1, 2 are preferably of the form shown in Fig. 4, comprising a flexiblewalled tubes a, tubes b, c and end-pieces. all soldered together. The strip 3 or 4 is attached by a pin d, and the lower end e is provided with a filling-aperture g which can be sealed by a pin h. The vessels are of such sizes as to compensate for the difference in the arms at which they act on the lever 5, so that for the same rise in temperature in each no movement of the operative point 22. of the lever occurs. The movement of the point 22 is magnified by means of two further levers, the first of which is a bell-crank 25 pivoted at 26 the frame 15, the outer ends 24 of the short arms of this lever being connected to the point 22 by a three-pointed strut 23. This strut constitutes a one-way connection and is kept in action by a small weight 36. The long arm of the lever 25 carries a pin 27 on which bears a light strut 28, the outer end of which carries a pin which can be inserted in any one of a series of holes in the short arm 30 of the pen lever 31. The niece carrying the series of holes can alse be adjusted by a screw through a range equal to the distance between two holes. The pivots 32 of the pen lever are supported in a rigid frame 33 which is rigidly connected to the frame 15 by the three rods 34 and base frame 35. The strut 28 also constitutes a one-way connection and it is kept in action by a light spring 40 connecting the frame 33 and the spindle 38 of the pen lever. The one-way connections described prevent straining of the mechanism in the event of abnormal motion taking place, such for example as would be produced if the supply of fuel to the calorimeter failed, or if too little water were supplied.
Patent GB-846137-A (GB)
Title: Improvements in or relating to means for testing the bond in honeycomb panels and the like
Inventor: HOLT ALFRED
IPC: G01N3/00
Filed: 1957-09-03
Abstract: 846,137. Electro-mechanical tests. ROE & -CO. Ltd., A.V. Aug. 20, 1958 [Sept. 3, 1957], No. 27731/57. Class 40(7). [Also in Group XXXVI] A test head for determining whether a ferromagnetic panel is correctly bonded to stiffening members, e.g. in honeycomb wall panels, comprises a magnetic circuit with energizing windings and a non-magnetic pick-up producing a signal representing the panel vibration. As shown, the test head comprises a core 2 having legs 3 and a shorter control leg 4. The head is placed on the panel and a plate 9 forms a capacitor with the ferro-magnetic plate. The capacitor feeds amplifiers the output of which is fed to the coil 6 so that the apparatus tends to oscillate at the natural skin frequency. The amplifier sensitivity is such that oscillation occurs only if there is a poor bond, the presence of which can be displayed on a unit which indicates the output of the capacitive transducer.
Patent GB-426409-A (GB)
Title: Improvements in the driving and braking of electric motor driven sewing and other machines
IPC: D05B69/12
Filed: 1933-10-09
Abstract: 426,409. Stopping and starting mechanism. CROYDON ENGINEERING CO., Ltd., 80, Gloucester Road, Croydon, and FIRMIN, P. S., The Shanty, The Green, Wallington, both in Surrey. Oct. 9, 1933, No. 27754. [Class 80 (ii)] [See also Groups VII and XXXV] The motor b of an electrically-driven machine is pivoted on gimbals a<1> on a bracket a so that its unbalanced weight and spring s normally tend to disconnect the driving wheel b<1> from the machine fly-wheel c<1> and to apply the brake b<5>. The brake b<5> is removed and the machine started by bringing the wheels b<1>, c<1> into frictional contact, by pulling a chain or cord attached to the eye b<6>, thus swinging the motor on its gimbals against the action of its unbalanced weight and the spring. The spring may be dispersed with.