baber/WOPTO huggingface dataset:
Patent GB-497643-A (GB)
Title: Improvements in or relating to the interpolymerisation of ethylene with other organic compounds
IPC: C08F2/00
Filed: 1937-04-22
Abstract: High molecular weight compounds are prepared by subjecting ethylene, in the presence of one or more other organic compounds containing one or more double bonds and capable of forming dimers or higher polymers, to a pressure of at least 500 atmospheres and a temperature of 100 to 400 DEG  C.  Polymerization catalysts, e.g. small amounts of free oxygen or benzoyl peroxide, and gaseous diluents, e.g. nitrogen, may be present, and a pressure above 1500 atmospheres may be employed.  Specified other organic compounds are monoethenoid hydrocarbons, e.g. propylene, isobutylene, pentenes and isopentenes, styrene and stilbene; esters of unsaturated polybasic acids, e.g. the diethyl esters of maleic, fumaric, citraconic and itaconic acids or the triethyl ester of aconitic acid; the acids and esters of the acrylic and substituted acrylic series, e.g. methyl, butyl or glycol methacrylates; vinyl esters, e.g. vinyl acetate or chloride; and diethenoid hydrocarbons, e.g. butadiene, o-, m- and p-divinyl benzenes, limonene, divinyl acetylene and other divinyl compounds. In examples, ethylene is heated under pressure (1) in the presence of benzoyl peroxide with isobutylene, (2-15) in the presence of oxygen with pentene-2, styrene, stilbene, limonene, the diethyl ester of maleic, fumaric, itaconic or citraconic acids, methyl or butyl methacrylates, glycol dimethacrylate vinyl acetate or butadiene, and (16) with a mixture of styrene and methylmethacrylate.  Certain of the products may be extruded or otherwise formed into films, threads, tubes, rods, sheets and tapes which can be used for waterproofing purposes, electrical insulation and protection from corrosion or chemical attack, may be used as ingredients of polishes, may be formed into emulsions, particularly if first partially hydrolysed, e.g. by heating an aqueous suspension or emulsion with acid or preferably alkali, and when partially hydrolysed may be used as emulsifying agents. Specification 471,590 is referred to.
Patent GB-343380-A (GB)
Title: Improvements in or relating to lamp or the like suspension means
IPC: F21V21/38
Filed: 1930-04-12
Abstract: 343,380. Suspending lamps &c. HELLUX AKT.-GES., 220, Hildesheimerstrasse, Hanover, Germany. April 12, 1930, No. 11630. Convention date, April 12, 1929. [Class 78 (v).] In a device for relieving from tension a cable supporting a lamp &c. of the kind in which pawls mounted on the lamp carrier co-operate with projections on a fixed member, each pawl element consists of one or more multiple armed ratchet wheels b which are pivoted about axes coincident with their centre of gravity. The wheels are mounted in brackets s, t on a member p carrying the lamp, and are rotated to clear or engage the supports when they come into contact successively with projections d, g, d and i on the fixed member k as the cable r is raised and lowered.
Patent GB-928880-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C33/10
Filed: 1962-03-27
Abstract: 928,880. Bearings. W. KOHLHAGEN. March 27, 1962 [April 24, 1961], No. 11727/62. Class 12 (1). [Also in Group XXII] In order to facilitate the charging of lubricant into a bearing assembly so as to provide lifelong lubrication of a shaft of an electric motor, for example, a lubricant-retaining member 66 is provided with a breather-vent 68 which is large enough to allow escape of air therefrom when the lubricant is being charged into the bearing. In an embodiment, an electric motor 10, having a core 18, has a shaft 39 supported radially and axially therein by a journal bearing 40 and a nylon &c. thrust-washer 58 respectively and, when assembled, has a reservoir g, Fig. 2, formed between inserts 42, 44, which are press-fitted into a bore 46 of the core 18 and has the lubricant-retaining member 66 held in position, by crimping for example, at one end of the bearing. In charging the lubricant into the bearing assembly, the lubricant is forced through a bore 48 of the insert 42 and into the reservoir g from where it passes, via an annular space 50 between the shaft 34 and the bearing 40, to a reservoir 62 and between the faces 54, 56 of the shaft and the thrust-washer 58. A vent 72, Fig. 4, of the thrust-washer 58 allows passage of lubricant to a chamber 76 formed by the member 66 and air is permitted to escape through the vent 68 therein. The shaft is then forced into the assembled position and surplus lubricant also escapes through the vent 68.
Patent GB-771245-A (GB)
Title: Electrical method of measuring the vital power of bacteria and apparatus therefor
IPC: G01N27/447
Filed: 1954-04-23
Abstract: The vitality of bacteria and other living cells used in fermentation process and in the manufacture of vaccines, vitamins, antibiotics and drugs is measured by determining the depth X in a uniform liquid layer, of depth d, of freshly grown bacteria at which the bacteria have zero observed electrophoratic velocity, determining the depth Xm at which the bacteria of the sample to be measured have zero observed electrophoretic velocity under the same conditions for determining Xw, and calculating the percentage vitality Z from the equation <FORM:0771245/VI/1> for cells moving towards the anode or cathode respectively, where X1 is the depth at which the velocity of the suspension fluid is zero, and is calculated from the formula <FORM:0771245/VI/2> An apparatus is shown consisting essentially of two glass plates spaced at 0.05-0.5 cms. (depth d) to contain the liquid layer, electrodes for applying a potential difference, a voltmeter, a milli- or micro-ammeter, and a variable resistance.  The various depths referred to are measured by the micrometer of a microscope.
Patent GB-105020-A (GB)
Title: Improvements in Couches having a Divided Resting Surface.
Inventor: MUELLER HEINRICH JULIUS
IPC: A47C20/08
Filed: 1916-08-19
Abstract: 105,020. M³ller, H. J. Aug. 19, 1916. Invalids' bedsteads; bedstead adjustments; bedrests.-An invalid's bedstead is constructed with two main separated and relatively inclinable resting portions 1, 3 which, when adjusted, are moved at the same time in such a manner as to prevent relative movement of the mattress 8, with consequent development of friction. The part 1 is pivoted at 2 in brackets 14, and is connected to the part 3 by a pair of links 5, 6, which are guided by a connecting-rod 9 pivoted to the bed frame. The inclination of the part 1, which is pivoted so as to be in neutral equilibrium, is effected by the pressure of the patient's body, the part being locked by the engagement of a tooth 16 on a pivoted arm 15 with a rack 22. The arm 15 is operated by a crank-lever 17<a>, 18 having a removable operating-handle 20. A hinged flap 13 of angular cross-section is arranged at the junction of the parts 1, 3 to prevent nipping of the mattress. The part 3 is cranked downwards and pivoted to the bed frame, and carries a foot portion 33 fixed to the journals of a crank 35 pivoted in the part 3, and connected to the cranked portion of this crank by a rigid bar 40. On each end of the crank 35 is mounted a grooved eccentric 36, over which passes a cord 37 connected to a spring 39. The crank 35 is also connected by a link 42 to a lever 44 mounted on a shaft 43, on which is mounted an axially rocking lever 45 adapted to engage a sector 47 to operate and lock the lever 44. In a modification, Fig. 5, the links 5, 6 are guided by links 24, 25 pivoted to their extension and to the parts 3, 1.
Patent GB-1253324-A (GB)
Title: Improvements in or relating to cylinder heads for internal combustion engines
IPC: F02B3/06
Filed: 1970-03-12
Abstract: 1,253,324. Making cylinder heads; milling cutters. INTERNATIONAL HARVESTER CO. 12 March, 1970 [21 March, 1969], No. 11830/70. Headings B3A and B3K. [Also in Division F1] The flats 48a, 148a formed in the induction and exhaust passage portions 18a, 20a, 118a, 120a of an I.C. engine cylinder head during casting are machined off by a rotating frusto-conical cutter 50. The cutter 50 has a cone apex angle of 45 degrees. Counter-bores 54, 154 which receive annular valve seats, may be simultaneously or subsequently machined in the base of the head 10.
Patent GB-1103726-A (GB)
Title: Improvements in or relating to the focussing of electromagnetic waves of optical frequencies
IPC: H01P3/20
Filed: 1965-03-22
Abstract: 1,103,726. Gas lenses. WESTERN ELECTRIC CO. Inc. March 22, 1965 [March 23, 1964; June 5, 1964; Aug.19, 1964], No. 12018/65. Heading G2J. A gas lens is formed by two gases of different refractive indices flowing towards one another substantially along the optical axis and impinging on each other in such a manner as to form a curved front. As shown applied to a system for transmitting laser light over long distances through conduits 10, gas lenses are provided at intervals to prevent spreading of the beam. Low refractive index gas such as helium, neon, hydrogen or argon flows in the direction 36 along conduits 10 and emerges through outlets 26. The high refractive index gas such as carbon dioxide or methane flows at 32 into a central chamber 14, passes through perforated baffles 30 to inhibit turbulence and flows as indicated by arrows 34 to meet the low refractive index gas and form a curved front 24. A stronger lens may be formed as indicated by front 25 by providing metallic wire mesh nozzles 17. In an alternative, Fig. 2 (not shown), the conduits (10) are extended into the chambers and provided with the nozzles (17), the tubes (16) being omitted. In a further form, Fig. 4, high refractive index gas flows through inlets 116 into a central porous tube 110 where it forms fronts 122 with the low refractive index gas supplied in excess at 114 to a non-porous outer tube 112 from whence it flows through porous tube 110.
Patent GB-103957-A (GB)
Title: Improvements in Roller Feeding Devices for Roller Crushing Mills.
Inventor: SONSTHAGEN ASBJORN
IPC: B02C4/28
Filed: 1916-08-25
Abstract: 103,957. Sonsthagen, A., and Bernhard, E. H. Aug. 25, 1916. Roller and roller-and-breast mills.-A roller device for feeding dry, pasty, or viscid material to high-speed roller crushing-mills comprises a pair of rollers c, c', Fig. 1, between which the material passes without being crushed, the speeds of the rollers being considerably lower than those of the first crushing-rollers a<1>, a<2>, by which the material is removed from the rollers c, c<1> and conveyed to the crushing-point, and the directions of motion of the rollers c, c<1> at the points adjacent to the. rollers a<1>, a<2> being opposite to those of the rollers a', a<2>. The feed-roller c is journaled at each end in a block c<2>, which is adjustable in radial guides c<3> by means of a screw d provided with collars d<2>, d<3> disposed on opposite sides of the cap d<1>. The journal-blocks e<3> of the feedroller c<1> are carried in guides e<2> at the outer ends of arms e supported upon the spindle of the crushing-roller a<2>. The distance between the rollers c, c<1> is adjusted by means of eccentrics f, which are mounted on a shaft f' and engage within lugs e<4> on the arms e. The shaft f is carried by arms f<2> pivoted to the framing and is provided with an operating-handle f<4>. The rollers c, c<1> are geared together by wheels g<2>, g<3>, and the roller c is driven by bevel and worm gearing from the crushing-roller a<1>. When treating sugar or other dry material, the material may be preliminarily crushed between a serrated roller a<3> and a pivoted serrated plate a<5>. The adjusting-screw a' passes through an arm a<7> of the plate a<5> and is held by a spring a<10> against a plate a" on the support a<12> of the hopper a<4>. A pivoted spring-pressed plate a<13> vibrated by a ratchet-wheel a<14> delivers the crushed material to the hopper b of the rollers c, c'. In a modification, Fig. 3, a crushing-roller 1 co-operates with the feed-roller 4, which is adjustable both radially and tangentially and runs at a higher speed than the combined feed and crushing roller 1. In another arrangement, Fig. 4, the crushing-roller 5 co-operates with a feedroller 8, and the thickness of the material fed to the crushing-rollers 5, 6, 7 is regulated by means of a breast or slide 9 on the hopper 10. Two or more pairs of feed-rollers may be arranged to work in conjunction with one or more sets of crushing-rollers.
Patent GB-294163-A (GB)
Title: Coin controlled camera and photographic cabinet
IPC: G03B17/53
Filed: 1928-02-28
Abstract: 294,163. Photomovette, Inc., (Assignees of Semel, S. I.). July 19, 1927, [Convention date]. Divided on 294,160. Drawings to Specification. Coin-freed apparatus. - In a coin-controlled camera apparatus of the kind which is started into operation by a coin and will automatically make a series of exposures of a person and stops when a definiie number of exposures have been made, the coin itself forms part of the initial circuit through the motor and also the illuminating lamps. An alternative permanent circuit is then completed through a switch operated by the motor, this circuit being automatically opened by the motor after it has completed a definite number of revolutions. The apparatus described is that described in Specifications 294,160, 294,162 and 294,164. In these Specifications other features of the apparatus are claimed.
Patent GB-552137-A (GB)
Title: Improvements in or relating to the filtering of solutions of organic derivatives of cellulose
IPC: C08B3/22
Filed: 1941-09-19
Abstract: 552,137. Filtering liquids. BRITISH CELANESE, Ltd. Sept. 19, 1941, No. 12090. Convention date, Oct. 25, 1940. [Class 46] [Also in Group IV] In the clarification of solutions of organic derivates of cellulose such as esters and ethers, vessels 1, 2 are charged with the solution to which filter aid has been added so as to produce a higher concentration in the solution in the vessel 2 which is first passed under pressure through a candle filter 16 to precoat it, and the solution from the vessel 1 is then passed under pressure through the filter at a higher temperature. The filter aid may be granular, e.g. diatomaceous or Fuller's earth or ground gypsum or limestone, or fibrous, e.g. disintegrated wood cellulose or short cotton or glass fibres. The solutions are forced by compressed air, supplied by a pipe 3 and a pump 13, to the filter, a constant pressure in the filter chamber 15 being maintained by a check valve 19 in a bypass 18. The filter is heated by a bath 27 and the filtered solution passes through a perforated pipe 21 and a pipe 22 to a pipe 28 in a cooling bath 30, a pressure gauge 23 and a thermometer 24 being provided. Specification 548,204, [Group IV], is referred to.
Patent GB-911231-A (GB)
Title: A new or improved fitting for use in the assembly of furniture or in the assembly of other articles
Inventor: MARSHALL DONALD SAMUEL
IPC: F16B12/48
Filed: 1958-04-16
Abstract: 911,231. Furniture joints. WILLIAMS & GRAY Ltd. April 16, 1959 [April 16, 1958], No. 12104/58. Class 52 (2). A connecting member in the form of a hollow spigot is internally flared to provide a conical socket and externally tapered so that it can enter and secure a hollow metal leg or, alternatively, seat a tapered spigot attached to a solid wooden leg in the conical socket. As shown, a die cast connecting member 11 is screwed to a table top 14 and a tapered cast metal plug 28, having the head of a screw 29 embedded in it, is secured to wooden leg 27. A ball catch 26 co-operates with hole 25 and a longitudinal rib on the plug (Fig. 4, not shown) engages with a groove formed in member 11. Alternatively, leg 27 may be replaced by a tapered hollow metal leg (Fig. 1, not shown) secured by a ball catch in hole 21.
Patent GB-252025-A (GB)
Title: Improvements in draught regulators for steam boilers
IPC: F23L13/00
Filed: 1926-05-10
Abstract: 252,025. Gentrup, B. May 8, 1925, [Convention date]. Actuating - mechanism. - A damperoperating mechanism is arranged to provide a slow initial opening movement, the rate of movement of which gradually increases to the fully open position. The damper consists of pivoted louvers d operated by a common draw-bar d, the latter being connected through a bell-crank e, f, and a link g to a slide-rod h which carries a rod k secured to nut l on a screwed spindle m. The spindle m is rotated at a constant speed by worm-gear n, the uniform travel of the nut l producing, through the connecting-rod k, a gradually increasing rate of opening of the louvers a as represented by the figures 8 - - 1.
Patent GB-232057-A (GB)
Title: Improvements relating to brake drums
IPC: F16D65/10
Filed: 1924-05-17
Abstract: 232,057. Groom, W. T. May 17, 1924. Energy-absorbing elements. - A soft iron or mild steel ring 5 of double V- or other section is shrunk upon the open end of a brake drum 3 to prevent noise when the brake shoes or the like are applied and serves also to throw off mud and water which would otherwise pass into the drum. The drum 3 may be of pressed steel and be formed with a projecting boss 9 perforated to pass over the axle of the vehicle wheel to which the drum is to be secured.
Patent GB-627128-A (GB)
Title: Improvements in or relating to protective headgear
IPC: A42B3/14
Filed: 1947-05-06
Abstract: 627,128. Helmets. MINE SAFETY APPLIANCES CO. May 6, 1947, No. 12203. Convention date, May, 23, 1944. [Class 63] A helmet 1 has an adjustable head band loosely supported within the crown in such a way that, when tightened, it contracts equally around the whole circumference of the crown. The band 12, of double thickness, has its opposite ends brought together with one end inserted between the two layers of the other end, and the said ends are detachably connected by means of a metal staple 13. The staple legs lie between the inner and outer layers of the band 12, the overlapping inner layers of which are held together by means of an integral tab 16 projecting through one of a series of apertures 15. Each cradle strap 2 is doubled back on itself, and the lower ends of each are folded upwardly and outwardly to enfold a cord 5 which passes round the outside of the crown 1 except at points adjacent to the strap loops 4 where it extends through holes to connect the straps 2 to the crown. The two folded-up ends of each strap 2 are riveted above the cord 5 to the opposite ends of a T-shaped supporting member, 6, 7, 8 or 9. Each side supporting member 8 or 9 is provided with a slot extending lengthwise, and in which a stud 19, connected to the outer layer of the head band 12, slides. The head band 12 is secured to the front supporting member 6 by means of a tape 11 which passes through a pair of slits in it, and to the rear supporting member 7 by the staple 13.
Patent GB-215569-A (GB)
Title: Improvements in and relating to ships' hatches
IPC: B63B19/16
Filed: 1923-05-07
Abstract: 215,569. Dunn, A. E. May 7, 1923. Hatches and hatchways.-A hatch cover is made up in sections A each comprising an angle iron boundary frame a fitted with caulked wooden boards b and with bracing bars d to take lifting rings c. The sections are assembled in the hatch coaming a<2> and caulked at the edges e, f.
Patent GB-129479-A (GB)
Title: Improvements in connection with Can Making Machines.
Inventor: GUINNESS ARTHUR HENRY
IPC: B21D43/16
Filed: 1918-07-30
Abstract: 129,479. Guinness, A. H. July 30, 1918. Blanks, transferring.-In a can-making machine the partly-made can is fed from one machine into another and is given a turn through a right or other angle by means of an inclined guideway formed of two parts 1, 2. The part 1 receives the can in an end-on position, but delivers it to the part 2 in a side-on position. The part 1 is formed of adjustable side guides 3, 4, a bottom guide 5 which converges towards the side 4, and an adjustable upper guide (not shown). The guide 4 is provided with an adjustable spring finger 4<a> at its lower end. The can body A slides end-on down the guide-way 2, and when arrested by the side 6 of the lower guide-way 2, the can proceeds to roll or slide down bottom guides 8, and is guided laterally by the adjustable sides 6, 7. The sides 3, 6 are integral, and the whole is mounted on an inclined wooden board 10. From the guideway 2, the can-body is carried by an elevator to be treated in a further machine.
Patent GB-912056-A (GB)
Title: Method and apparatus for measuring out flowable loose materials
IPC: G01G1/30
Filed: 1961-04-06
Abstract: 912,056. Automatic weight-control systems. HESSER MASCHINENFABRIK A.G., FR. April 6, 1961 [April 20, 1960], No. 12411/61. Class 38 (4). In a system in which a pre-measured quantity of loose material is fed to a weigh pan and further material added until the weight is correct, variations in the period of addition are utilized to correct variations in the pre-measured quantity automatically. In Fig. 1 doses of flowable loose material are dispensed from a chamber 1, 2 into a weigh holder 6 and the weight of each dose brought up to the required value by operation of an electromagnet 8 to add further material in a stream from a shoot 9. When the weight is correct a contact 29 on weigh-beam 7 stops the flow from shoot 9. An electrical controller 12 including a motordriven timer (not shown) detects whether the period during which additional material is supplied is within predetermined limits and, if not, operates a motor 13 for a fixed period in one sense or the other to adjust the volume of chamber 1, 2, and hence the quantity of the initial dose, as necessary to restore the period of additional flow between the predetermined limits. In a modification, doses are dispensed into weigh holder 6 from a weighing device and motor 13 adjusts the length of a chain loading the weighing device in order to correct the initial dose. Weigh-holder 6, when filled, may be automatically transferred to another check weighing device which controls a further motor adjusting chain loading of weighbeam 7.
Patent GB-1076990-A (GB)
Title: Breathing apparatus
IPC: A61M16/00
Filed: 1966-03-21
Abstract: 1,076,990. Breathing apparatus. O. H. DRAGER, [trading as DRAGERWERK HEINR. & BERNH. DRAGER]. March 21, 1966 [March 20, 1965], No. 12417/66. Heading AST. A respiratory apparatus as illustrated with reference to the drawing comprises a breathing bag 8, means for expanding and contracting the breathing bag (such as pressure generator 12 and housing 9), an adjustable abutment 14 arranged to limit the expansion of said breathing bag, biasing means 17 urging said abutment to contract the bag, releasable detaining means 16, 26, 27 arranged to detain said abutment in a limiting position, and a counting mechanism 18, 19, 20, 21 arranged to count changes in the pressure phase in the breathing bag and to release said detaining means (such as by operation of cam 22, microswitch 24, solenoid 25 and armature rod 26) at a negative pressure phase after a predetermined number of pressure phase changes, thereby to permit expansion of said breathing bag beyond said limit whereby the next inspiration is deep. The apparatus may be devized to control exhalation as well.