baber/WOPTO huggingface dataset:
Patent GB-1298326-A (GB)
Title: Process for the production of 2-methylene-1,3-diacetoxypropane
Inventor: SWODENK WOLFGANG
IPC: C07C69/16
Filed: 1970-02-20
Abstract: 1298326 Catalysts FARBENFABRIKEN BAYER AG 20 Feb 1970 [27 Feb 1969] 8181/70 Heading B1E [Also in Division C2] Catalyst compositions comprising a supported palladium catalyst comprising an alkali metal acetate are used for the preparation of 2-methylene-1,3-diacetoxy propane from methallyl acetate, acetic acid and oxygen. The palladium may be as metal or as compounds such as palladium acetate, benzoate, propionate, acetyl acetonate, hydroxide, bis-(diphenyl-propane-1,3-dionate or acetyl phenolate on conventional supports such as silica, silicates, active carbon, aluminium oxide, spinels, pumice and titanium dioxide. Alkali metal compounds which convert to acetates under reaction conditions may be used. Additional metals or metal compounds may be present. Gold, platinum, iridium, ruthenium, rhodium, iron, manganese, chromium, tungsten and molybdenum are mentioned. Conventional methods of preparation may be used and an example describes the impregnation of silica spheres (5 mm) with palladium acetyl acetonate and iron acetyl acetonate followed by potassium acetate which after heat treatment at 115‹C is used as a solid catalyst for the gaseous reaction.
Patent GB-383151-A (GB)
Title: Adjustable type guide for typewriters
IPC: B41J25/22
Filed: 1932-03-19
Abstract: 383,151. Typewriters. WOLFF, R., 29, Freiestrasse, Basle, Switzerland. March 19, 1932, No. 8241. Convention date, Dec. 29, 1931. [Class 100 (iv).] Aligning for impression.-A type-lever guide is adjustable longitudinally of the type-heads so that when a type-head is worn, the guide can be adjusted to engage an unworn place. In the Figure, the guide d is fastened to the frame by screws h passing through slots d<1> in the body of the guide and is thus vertically adjustable. In another form, the body of the guide is fastened to the frame but the jaws c slide vertically in a slot in the fixed part and can be fastened by a set-screw.
Patent GB-636099-A (GB)
Title: Prefabricated insulating bushings for high tension electric cables
IPC: H02G15/00
Filed: 1948-03-19
Abstract: 636,099. Cable sleeves. COMPAGNIE GENERALE D'ELECTRICITE. March 19, 1948, No. 8277. Convention date, April 16, 1947. [Class 36] A prefabricated end sleeve for a hightension cable, formed by winding strip insulating material 3 about a central tube 2, is slipped over a cable end from which the lead sheath 11 has been removed, a thin conical insulating wrapping 14 having been first applied to the cable insulation 13 to ensure a close fit between the sleeve and the cable where the potential gradient is the highest. The thickness at the base of the conical wrapping 14 is of the order of 1 mm., and any gap left between the cable insulation 13 and the sleeve 3 is filled with oil after assembly. The sleeve is completed by a screen'15 and a porcelain cover (not shown).
Patent GB-378821-A (GB)
Title: Improvements in or relating to glass feeding apparatus
IPC: C03B7/086
Filed: 1932-03-21
Abstract: 378,821. Glass manufacture. UNITED GLASS BOTTLE MANUFACTURERS, Ltd., 40, Norfolk Street, and PARFITT, A. W., Stafford House, Norfolk Street, Strand, London. March 21, 1932, No. 8308. [Class 56.] Delivering molten metal.-A device for feeding charges of molten glass comprises a plunger which is reciprocated vertically above an outlet in a container by means of a fluid-pressure cylinder, means interposed between the plunger and the cylinder to control the speed or character of the movement imparted to the plunger, and means for enabling the control to be exercised while the feeder is in operation. Thus the weight or shape of the charges of glass delivered by the feeder can be altered without stopping the feeder, and the device can be arranged to deliver a succession of charges of different weights or forms in cyclic order. In the construction shown in Fig. 1, the plunger 2 is connected by a link 12 with the joint between a pair of toggle levers 10, 11, the free end of the link 10 being connected to the piston-rod 9 of the cylinder 8 while the free end of the lever 11 is pivoted to a block 14 which may be moved horizontally by a screwed rod 15. By adjusting the position of the block 14, the character of the movement imparted to the plunger 2 by the reciprocations of the piston-rod 9 can be altered. In a modification, shown in Fig. 2, the toggle levers are arranged vertically, and the joint between them is connected by a slotted bracket 18 with the piston of the cylinder 8. The upper end of the lever 19 is provided with a roller which is free to move vertically and engages in a cam slot 20 formed in a rotatable disc 21. By rotating the disc continuously or intermittently, the movement of the plunger 2 can be varied, and a succession of mould charges of different weights can be delivered in cyclic order. The cam disc 21 may also be used instead of the block 14 with the construction shown in Fig. 1. In a further modification of the device shown in Fig. 1, the free end of the lever 10 slides along a rod, and the cylinder 8 oscillates a cam which is also pivoted to the joint of the levers 10, 11. The cam bears against a stationary roller and its shape controls the motion of the plunger.
Patent GB-513907-A (GB)
Title: Steel, gas sealed air raid shelters of unit construction
IPC: E04H9/10
Filed: 1938-03-18
Abstract: 513,907. Air-raid shelters; edge joints for metal sheets. RICHARDS, F. March 18, 1938, No. 8347. [Classes 20 (i) and 20 (ii)] A metal air-raid shelter comprises metal sheets, which are flanged at their edges and joined by bolts, rivets or equivalent 30 passing through the flanges, and are each bent or curved to provide flat parts constituting portions of the wall and roof. The shelter shown in Fig. 1 and 2 comprises flat side walls 20, 21 and a flat roof 22 which are formed by assembling a number of flanged plates 25, 26 which extend for the whole height of a side wall and for a portion of the width of the roof; the roof portion of the plate 25 is shorter than that of the plate 26, and these plates are arranged in pairs, with the plates of alternate pairs changed side for side so that the longitudinal joint 27 is staggered. The end of the shelter is composed of flat sheets secured to the flanges of the end plates. An interior transverse partition 33 may be fitted between the flanges of the sections at the desired position. The shelter shown in Fig. 3 is formed of a number of standard flat plates 37 and a number of curved corner plates 38 having flat, portions forming part of the roof and wall, the flanges of the plates being disposed inwardly of the shelter. The joint between the plates may be provided with a rubber or like packing strip 40, Fig. 5, which is perforated or slotted to receive the bolts 30 and is formed with thickened parts or beads 42, 43 at its edges for making a tight joint and for positioning the strip. Where a partition is to be included between a pair of flanges on adjacent plates, a packing strip is disposed between each flange and the partition. The joint may also be formed by screwing a rubber or like strip 47, Fig. 11, to a wood strip 46 which is clamped in the joint between the sections. To provide additional strength at the joint, a metal member of I or other section is clamped in the joint, a pair of packing strips being also provided. Instead of the plates being provided with integral flanges, the latter may be formed of metal angles which are welded or riveted to the plates.
Patent GB-1380442-A (GB)
Title: Shaped heat-insulating refractory compositions
IPC: D21J1/00
Filed: 1972-02-23
Abstract: 1380442 Hot tops FOSECO INTERNATIONAL Ltd 22 Feb 1973 [23 Feb 1972] 8364/72 Heading C3N [Also in Division D2] A shaped article is formed of a refractory heatinsulating composition comprising by weight 1 to 15% of inorganic fibre, 40 to 85% of particulate refractory filler 1 to 20 of bentonite clay, 2 to 30% of kaolinite clay, 0À2 to 5% of phenolformaldehyde resin and 0À2 to 5% of starch. The inorganic fibre may be calcium silicate, alumino-silicate, silica, zirconia or asbestos, or mixtures thereof. The particulate refractory filler may comprise alumina, silica, zircon, chromite, grog, magnesia, olivine, chamotte, sillimanite, mullite, calcined rice husks or coke, or mixtures thereof. The bentonite clay may be sodium, clacium, activated calcium, or magnesium bentonite, or mixtures thereof. The kaolinite clay may be china clay or ball clay or mixtures thereof The composition may also include urea-formaldehyde resin and an organic fibre. The organic fibre may be paper, nylon, cotton, wood flour or rayon or mixtures thereof. The articles are preferably made by felting on to a mesh frame from an aqueous slurry. In Example 1, a sleeve having a density of 0À7 to 1À0 g./cc. is produced from a 20% by weight solid content slurry and is dried, as part of a sand mould, at 450‹ C for 24 hours. In Example 2, a sleeve of density 0À7 to 0À9 g./cc. is manufactured from a 25% by weight solid contents slurry of a composition including 3% of urea formaldehyde resin and 0À5% rayon the sleeve being dried at 400‹ C. for 24 hours as part of a sand mould.
Patent GB-878523-A (GB)
Title: Process for grafting polymeric chains on manufactured articles consisting of linear propylene high polymers
IPC: C08J7/16
Filed: 1958-03-17
Abstract: Graft polymers are made by immersing a body formed of a solid high molecular weight polymer of propylene in a solution of a free radical polymerization initiator in a solvent which has a swelling action on the polymer, evaporating the solvent and then contacting the body with an unsaturated monomer, e.g. styrene, vinyl pyridine or 2-methyl-5-vinyl pyridine.  Specified polymerization initiators are benzoyl peroxde and azobis-isobutyronitrile, which may be dissolved in benzene or acetone.  In the examples, the process is applied to polypropylene in fibrous form.
Patent GB-182520-A (GB)
Title: Improvements in or relating to hoisting appliances
IPC: B66B11/04
Filed: 1921-12-19
Abstract: 182,520. Pickering, J. T. Dec. 19, 1921. Winches; driving-gear; controltransmitting gear. -Comprises a particular construc - tion and arrangement of gearing for driving a service or dinner lift from a continuously - running motor. Two parallel driving- shafts 3 are connected by crossed belts, chains, or spur gear, and one of them is driven by chains or the like from the motor shaft 1. The driven shaft 4 is connected by chain gear to a pulley 8 on the shaft of the lifting-rope sheave 11. A large friction pulley 4" on the driven shaft is moved bodily from a braked central out-of-gear position into contact with friction pinions on one or other of the shafts 3. To effect this movement, a lever 7 is rocked by hand or by the pulling of a cord (not shown). The rocking movement is communicated to a lever G which forms bearings 13 for the driven shaft above the point at which it is pivoted to the framing 12. The rocking of the lever 6 moves the pivots 13 laterally to engage the gearing, and also releases a brake from the pulley 4<c> by depressing the brake lever 10 against the action of the spring 10<c>. A path 9 for a rolling weight may be arranged at the top of the lever 7 to maintain the lever in either displaced position in which it is set.
Patent GB-484944-A (GB)
Title: Improvements in split-anode magnetrons with thermionic filaments
IPC: H01J25/52
Filed: 1937-03-23
Abstract: 484,944. Magnetrons. M-0 VALVE CO., Ltd., and MEGAW, E. C. S. March 23, 1937, No. 8507. [Class 39 (i)] An evacuated splitanode magnetron adapted to generate, amplify or detect highfrequency oscillations is provided with a straight filament of thoriated tungsten lying approximately in the axis of a substantially cylindrical anode divided by axial planes into two or more parts. The filament comprises a straight portion 3 and its end portions 4, 5, which extend beyond the anode 1, are bent at right-angles as shown. The portion 3 may be mounted slightly spaced from the axis of the anode or it may be coaxial therewith and two wires 8, 9 may be arranged parallel to and on either side of the cathode, to serve as a grid as described in Specification 408,641. Dimensions of the electrodes and operating conditions are given in the Specification, and the cathode is preferably heated to such a temperature that the maximum anode current is approximately one-third the total thermionic emission.
Patent GB-1299716-A (GB)
Title: Transistor circuit for changing an a.c. input voltage to a d.c. output
IPC: H02J7/00
Filed: 1969-11-26
Abstract: 1299716 Battery charging systems for small electric apparatus; DCDC converters SCHICK Inc 26 Nov 1969 [28 March 1969] 8590/72 Divided out of 1299715 Headings H2F and H2H [Also in Division H3] An A.C. to D.C. converter has a first rectifier 47 providing from an A.C. input 43, 44 a D.C. supply via a resistive path 52 to a transistor osillator 54, 55, the output of the oscillator is rectified by a second rectifier 65, 66 and is fed to a D.C. load 45, 46 which includes a switch 42 ganged to a further switch 41 and the further switch 41 changes the resistance of the resistive  path 52, 53 so that the D.C. load is changed simultaneously with the output current of the oscillator. In the push pull transistor inverter 54, 54 shown current via resistor 60 turns on the transistor 54 with the higher gain until the core saturates and transistor 54 is cut off. The voltage induced in coil 59 turns on transistor 55 which operates in a similar manner as transistor 54 and the operation is repeated to provide a H.F. voltage at output windings 63, 64. The switches 41, 42 are open to provide a low current output from rectifiers 65, 66 for charging a battery 45. When the motor 46 is to be driven switches 41, 42 are closed and a lower resistance 53 shunts resistor 52 so that the current output from the inverter is increased. The motor may be driven from the battery alone with switches 41, 42 closed and the A.C. supply at 43, 44 disconnected. A neon lamp 50 indicates when the A.C. supply is connected. Specifications 1,299,715 and 1,299,718 are referred to.
Patent GB-1592134-A (GB)
Title: Apparatus for injecting fuel in air-compression internal combustion engines
IPC: F02M47/00
Filed: 1978-03-03
Abstract: The device contains an injection pump element (1) with a pump delivery valve (2), a spring-loaded injection valve (5) and a fuel feed line (3) connecting the pump delivery valve (2) to the nozzle needle annular orifice (12) of the injection valve (5), in which line a relief valve (4) is arranged close to the nozzle needle annular orifice (12). In such a device it is desirable to shorten the closing sequence of the injection valve (5) as much as possible in the upper speed and load range. In order to achieve this an additional outlet bore (15) is connected to the nozzle needle annular orifice (12), by means of which bore the pressure still prevailing in the nozzle annular orifice (12) is rapidly reduced following closure of the pump delivery valve (2) and the relief valve (4). The cross-sectional area of the piston (8) in the injection pump element (1) is selected to be sufficiently large for the quantity of fuel flowing out through the outlet aperture (15) during the injection sequence to be additionally available without prolonging the injection period. A shut-off element (17) can be automatically actuated as a function of the engine speed and/or the engine load in order to close the outlet aperture (15) in the lower speed or load range. In this range the stroke of the pump (8) in the injection pump element (1) can then be reduced. <IMAGE>
Patent GB-199480-A (GB)
Title: Improvements relating to electric signalling systems for railways and the like
IPC: B61L23/16
Filed: 1922-03-25
Abstract: 199,480. Westinghouse Brake & Saxby Signal Co., Ltd., (Union Switch & Signal Co.). March 25, 1922. Lamp failure alarms.-Devices in which the electrical resistance of a conductor varies with changes of temperature replace the usual electromagnetic relays used in railway signalling systems, the temperature of the conductor being controlled by the conditions governing the operation of the signals. In one form of the device, a layer 53, Fig. 8, of cupric or cuprous oxxide, silver selenide or sulphide, carborundum paste, alundum cement, fused copper and mica, or other material having either a positive or negative temperatureresistance coefficient, is placed between electrodes 51, 52, the former being perforated and enclosing a tube containing a heating filament 49. A layer of gold leaf or the like may be placed between them. The elements mav be enclosed in an evacuated bulb. A relay device 39, Fig. 5, may be connected in series with the " danger " lamp in a manually operated system so that, on returning the slide F to normal, current flowing to the lamp through a contact 34 heats the filament 38 and material 40 thus releasing a check-lock 42 on the slide F. Lamps R', G<1> may be operated through contacts on the armature 44 of the check-lock to indicate the condition of the signal lamps. In order that the material 40 may respond quickly to the heating of the filament, the latter is maintained in a warm condition by a shunt 46 from the '' clear " lamp circuit. The material 40 may be heated directly from the lamp R, or may be combined with it in the same bulb.
Patent GB-919349-A (GB)
Title: An improved return air adjusting mechanism for bottle, can or the like filling machines
IPC: B65B31/00
Filed: 1959-03-13
Abstract: 919,349. Bottling. SEITZ-WERKE G.m.b.H. March 13, 1959 [March 14, 1958], No.8715/59. Class 125(2).  A return-air adjusting mechanism for a bottle filling machine having three separate chambers for the liquid to be bottled, the compressed air and the return air, comprises a housing 10, 11, 12, 13 and 14 containing valves 16, 24 and 51 which are operated by diaphragms 15, 22 and 26 and are loaded by springs 18, 23 and 29, the loads on the springs 18 and 23 being adjustable by hand wheels 20 and 48. In operation liquid flows through pipe line 34 into chamber 37 the level therein being determined by line 39. The three way cock 38 then closes line 39 and allows compressed air to pass through line 40, valve 16 and line 28 into chamber 50. The diaphragm 15 keeps the ratio of the pressures of the liquid and the compressed air constant. The return air enters chamber 31 via line 27 and passes through the bore 32 into chamber 33 so that diaphragm 22 controls the pressures between the liquid and the return air which escapes through valve 24, line 25 and cock 49. The mechanism for adjusting the tension on the spring 23 comprises an eccentric 46 turned by hand wheel 48 and engaging the plate 44 held in the fork 43 which is pivoted in the member 42.
Patent GB-1114147-A (GB)
Title: Thermal insulating structure for a turbine exhaust duct
IPC: F02K1/82
Filed: 1965-08-24
Abstract: 1,114,147. Gas turbine engine exhaust ducts. W.H. AVERY. Aug.24, 1965, No.8760/67. Divided out of 1, 109, 824. Headings F1J and F1T. A heat insulating structure for the internal surface of a gas-turbine jet engine jet pipe 4 comprises spaced refractory sheet members 11 which overlap and are substantially parallel to each other, the sheet members being connected to and being disposed at an acute angle, e.g. 7 degrees to the surface. The sheets may be of ceramic-coated niobium. The pipe is mounted within an outer wall 6 within which cooling air may flow, and the air may pass through openings in the pipe wall to the spaces between the members.
Patent GB-247774-A (GB)
Title: Improvements in vacuum tube systems for the transmission of high frequency signals
IPC: H02H7/20
Filed: 1925-04-02
Abstract: 247,774. Western Electric Co., Ltd., (Western Electric Co., Inc.). April 2, 1925. Vacuum or low-pressure apparatus, arrangements of; transformers. - A three-phase transformer and rectifier forming part of a wireless - transmitting station comprises a primary 40, - secondary 50, and diode valves 56, 57, 58, the supply mains being shown at 61, 62, 63, while 'the D.C. output is applied across the plate-filament space of the amplifiers PA. According to the setting of the switch 104, Fig. 3, one or other of the relays 84, 85, 86.is energized and corresponding tappings are rendered effective in the transformer primary windings 40, which are connected in delta. The distributed star-connected secondary windings 50 are in series with rectifiers 56, 57, 58. In order that the mean magnetization of the iron cores may be zero, each arm of the secondary star comprises two coils wound on two adjacent cores, the two coils on any one core being connected in opposition so that the flux in that core is continually being reversed. Smoothing impedances 59, 59<1> and excess-tension dischargers are provided.
Patent GB-287569-A (GB)
Title: Improvements in swimming apparatus
IPC: A63B35/10
Filed: 1928-03-23
Abstract: 287,569. Chaligne, R. G. March 24, 1927, [Convention date]. Swimming and bathing appliances.-A swimming apparatus comprises, in combination, handles 10 and pedals 20 for transmitting motion to a propeller 15 by the simultaneous action of the arms and legs of a swimmer. The handles 10 and pedals 20 are oppositely arranged in order to facilitate the complete extension of the limbs of the swimmer. The body of the apparatus comprises two elliptical tubular members 1, 2 which are relatively adjustable, and are clamped in position by a clamping band 4 and are rendered watertight by a rubber sleeve surrounding the joint. Within these members a similar driving shaft is coupled at either end through universal joints and pinion gears to the shafts 8 and 17. All the shafts are mounted in ball bearings, and compartments are provided at either end for housing the pinion gears which are filled with oil. Lateral floats 32 and a central float 33 stabilize the apparatus and increase its buoyancy. These floats can be deflated when the apparatus is telescoped to its shortest length for transport. The apparatus can be adjusted to the length of any operator.
Patent GB-1016701-A (GB)
Title: Improvements in devices having rotatable parts,such as cranes or radio telescopes
Inventor: CLARKE REGINALD EDWARD
IPC: B66C23/84
Filed: 1962-03-08
Abstract: 1,016,701. Slewing bearings for jib cranes. BABCOCK & WILCOX Ltd. March 8, 1963 [March 8, 1962], No. 8895/62. Heading B8B. A level luffing jib crane is supported on a pintle 6, Fig. 2, which is rotatably mounted on an undercarriage 2 by upper and lower roller rings 28, 30. The vertical load is taken by a plain footstep bearing 26 on a platform 7. Securing is effected by a pinion 36 and a ring 44 on the undercarriage 2. The upper roller ring, Fig. 4, has horizontal rollers 60 which run between tracks 32, 48 and is supported by vertical rollers 64 which run on a flange 50, Fig. 5, attached to the pintle 6. To facilitate servicing, the roller ring is in four similar parts which may be separately removed. The lower ring is similarly constructed. In a second embodiment. Fig. 8, the upper and lower roller rings 28, 30 are supported by rollers 78, 82 which run respectively on a plate 80 mounted on the pintle 6 and a platform 84 on the undercarriage 2. Fig. 9 shows a third construction in which both upper and lower roller rings have a support track 86 which bears on rollers 88 mounted on rings 90 secured to the undercarriage 2. As a further alternative the rollers of the tracks may be supported by horizontal flanges on either or both of the vertical tracks on which they run. Upper and lower rings need not be supported in the same way. Luffing is by an hydraulic ram.
Patent GB-234062-A (GB)
Title: Vehicle tank
IPC: B60P3/22
Filed: 1925-04-03
Abstract: 234,062. Davis Welding & Manufacturing Co., (Assignees of Davis, A.). May 19, 1924, [Convention date]. Tank wagons.-The heads of wagon tanks are dished, provided with concentric and radial corrugations 8, 12, 13, Figs. 1 and 2, and secured by welding their peripheral flanges to the body. Longitudinal surge plates 16 are secured to angle plates 18, which are welded, at intervals, to the corrugations or the spaces therebetween. Specification 149,220 is referred to.