baber/WOPTO huggingface dataset:
Patent GB-948857-A (GB)
Title: Polyethylene resin
IPC: C08F10/00
Filed: 1962-03-05
Abstract: Ethylene is polymerized at 24,500-27,500 p.s.i. and at 430-445 DEG F. in the presence of a polymerization catalyst, a chain transfer agent and in the absence of any other additive.  The catalyst e.g. 0.001-5. may be t-butyl perbenzoate; benzoyl, acetyl or hydrogen peroxide; persuccinic acid an azo compound or a persalt (a number of persalts and peroxides are given).  The chain transfer agent e.g. 0.5-10% may be cyclohexane, hydrogen, propane, i-butane, a chlorinated hydrocarbon, halogenated carboxylic acids or esters, aldehydes, alkyl esters of inorganic oxyacids of S, P or Si, or mercaptans. The ethylene may be compressed in stages and the catalyst injected in the feed line and the unreacted gas may be recycled using continuous or batch operation. The polymerization may be carried out in gaseous or liquid dispersion e.g. using water, benzene and/or isooctanes. The polyethylene may have a density of 0.924 and a melt index of 3 and may be formed into a film or article.ALSO:A substrate, e.g. paper, aluminium foil or "Cellophane" (Registered Trade Mark), is coated with a polyethylene produced by polymerizing ethylene at 24,500-27,500 p.s.i. at 430-445  DEG F. in the presence of a polymerization catalyst and a chain transfer agent and in the absence of any other additive.  In an example a thin film of polyethylene was extruded on to a paperboard substrate and pressed on to it.
Patent GB-540918-A (GB)
Title: Improvements in or relating to the electrical precipitation of suspended particles from gases
IPC: B03C3/86
Filed: 1940-05-10
Abstract: 540,918. Electrical precipitation apparatus. WHESSOE FOUNDRY & ENGINEERING CO., Ltd., and FRANCOMBE, K. W. May 10, 1940, No. 8467. [Class 39 (i)] In apparatus for the electrical precipitation of particles suspended in gases, of the type in which flexible discharge electrodes 9 are arranged between parallel plate collecting electrodes and in which the electrodes 9 are suspended from bars 10 with their lower ends passing through bars 12 and weighted at 13, swing- ing of the system is reduced by connecting the bars 10, 12 by a rigid structure comprising vertical members 15, 16, 19, extending part of the distance between the bars and connected by a cross member 17. The rigid structure may be made of tubular rods surrounding the flexible electrodes over part of their lengths ; or it may be made of solid rods which replace the corresponding parts of the electrodes. Specification 428,471, [Group III], is referred to.
Patent GB-234240-A (GB)
Title: Improvements in and relating to steam generators
IPC: F23M5/08
Filed: 1924-04-04
Abstract: 234,240. Portham, R. S. April 4. 1924. Junction pieces.-A water screen for a steam-generator furnace is composed of tubes arranged in groups of two or more, each group having a common connection to the headers. In one form, each group comprises a pair of tubes 10 having common connections 11 to the headers 12. The junction pieces may be formed on the elements by forging as described in Specification 6304/15, or otherwise. The tubes may be formed in groups of three, the connections to the headers being in one place or staggered. The tubes of each group may be in contact or separated.
Patent GB-1200857-A (GB)
Title: Switchboard
IPC: H02B1/20
Filed: 1969-02-18
Abstract: 1,200,857. Switchgear structures. MERLIN GERIN. 18 Feb., 1969 [12 March, 1968], No. 8672/69. Heading H1N. In a switchboard comprising a plurality of superposed cubicles; each cubicle contains a retractable multipolar electrical device e.g. a polyphase switch 16, which is pivotal about an axis 30 between an inserted and a retracted position; each pole of the device comprises two terminals one of which is electrically connected to a respective contact of one set of movable contacts 34, 34<SP>1</SP>, 34<SP>11</SP>, 34<SP>111</SP> and the other of which is connected to a respective contact of another set of movable contacts, only one contact 54 of this set being visible; the two sets of movable contacts are movable with the electrical device and co-operate with corresponding sets of fixed contacts e.g. 24, -24<SP>111</SP> and 56- in the inserted position; and the contacts of set 34, 34<SP>1</SP>, 3411, 34<SP>111</SP> are spaced apart in a direction perpendicular to the axis of rotation 30 and the contacts of the set, e.g. 54 are spaced apart in a direction parallel to the axis 30. The contact set 24-24<SP>111</SP> is formed by vertically extending horizontally spaced busbars which are mounted in a vertically extending compartment 22 common to a column of cubicles. The contact set, e.g. 56 &c. comprises vertically spaced fixed contacts which are connected to cables 60 which extend vertically through aligned apertures in corners 62 of the superposed cubicles. A spring biased shutter 38 isolates bus-bars 24-24<SP>111</SP> when the electrical device 16 is retracted and is provided with an indicating extension 41 which projects from the switchboard when the shutter is in its isolating position. The shutter 38 is moved from the isolating position by the engagement of a pin 42 on a pivoted panel 28 carrying the movable set of contacts 34-34<SP>111</SP> with a cam surface 40 when the electrical device is moved to its inserted position. As shown the panel 28 and door 32 are integral, but they may be independently pivoted. The door handle 50 may be interlocked with the operating knob 48 of the electrical switch 16.
Patent GB-708479-A (GB)
Title: Improvements in or relating to photographic developers
Inventor: KENDALL JOHN DAVID
IPC: G03C5/26
Filed: 1952-04-04
Abstract: 708,479. Photographic developing compositions. ILFORD, Ltd. March 24, 1953 [April 4, 1952], No. 8697/52. Class 98(2) A highly concentrated aqueous liquid developer comprises essentially a 1-aryl-3-pyrazolidone and a polyhydroxybenzene having hydroxy groups in o- or prelationship, potassium carbonate, and an alkali metal or ethanolamine sulphite, and optionally also an antifogging agent such as benztriazole and an organic solvent such as methyl or ethyl alcohol, or ethylene glycol or its monomethyl ether. In an example, a concentrated aqueous developer includes 1-phenyl-3-pyrazolidone, potassium carbonate, hydroquinone, sodium sulphite, potassium bromide, and optionally benztriazole. The sodium sulphite may be replaced by potassium sulphite. Specification 542,502 is referred to.
Patent GB-974544-A (GB)
Title: Liquid-liquid recovery of metal values using hydroxyamine extractants
IPC: C22B3/28
Filed: 1963-03-05
Abstract: Metal values are recovered from aqueous solutions by contacting said aqueous solutions with an amino-hydroxyalkyl extractant of formula <FORM:0974544/C1/1> where Z is CN, NR2R3, CONR2R3 or COOR4, R is hydrogen or a C1-20 aliphatic hydrocarbon radical, R1 is a divalent C1-21 aliphatic hydrocarbon radical and either or both R and R1 may contain one or more further groupings <FORM:0974544/C1/2> R2 and R3 which may be the same or different are hydrogen or aliphatic hydrocarbon radicals, aryl radicals, hydroxyalkyl radicals or aminoalkyl radicals or form a ring containing both R2 and R3 and the nitrogen atom to which they are attached, and R4 is hydrogen or an aliphatic or aryl radical.  The metal is extracted into the organic phase which may be separated from the aqueous phase, stripped by means of an aqueous stripping medium and the aqueous stripping medium containing the metal separated from the organic phase.  The above formula covers two isomers, viz: <FORM:0974544/C1/3> and <FORM:0974544/C1/4> Typical examples specified include 9(10)-amino-10(9) - hydroxystearylamine, 9(10) - dodecylamino - 10(9) - hydroxystearonitrile, and 9(10)-amino-10(9)-hydroxystearamide. The organic phase may contain a conditioner (a long-chain aliphatic alcohol) and a diluent, for example an aliphatic hydrocarbon, an aromatic hydrocarbon, aromatic petroleum fraction, ketone, nitro-hydrocarbon or chlorinated hydrocarbon. The original solution may be neutral or slightly acidic but is preferably basic.  Ammonium hydroxide and mineral acids may be used as stripping agents.  The process may be used to extract Al, Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Fe(III), V(IV), Ti, Zr, Ce(IV), Mo, and U(IV). Specifications 934,378 and 935,214 are referred to.
Patent GB-539598-A (GB)
Title: Improvements in or relating to collapsable containers
IPC: B65D6/16
Filed: 1940-05-16
Abstract: 539,598. Collapsable cylindrical containers. CHELL, W. May 16, 1940, No. 8730. [Class 21] A container which can be collapsed in transit or storage is constructed from a rectangular sheet A plywood &c. bent to; form a cylindrical body, the contingous ends overlapping and being secured by a detachable fastening consisting of a hooked metal strip C on one end engaging a raised metal plate D on the other end. Relative endwise movement is avoided by a strip F againstwhich one of the ends abuts. End caps of plywood &c. are secured by studs and nuts or by rods K extending the length of the body and through the caps, the ends being threaded to take nuts.
Patent GB-580983-A (GB)
Title: Hydraulic drives
IPC: F16H61/46
Filed: 1944-05-08
Abstract: 580,983. Rotary engines ; speed governors. BENDIX AVIATION CORPORATION. May 8, 1944, No. 8733. Convention date, May 21, 1943. [Classes 57 and 110 (ii)] [Also in Group XXIX] The rotary vane pump 44 delivers liquid through a passage in a partition 14 to vane motor 144, the inlet to the motor having a spring-pressed valve 74, Fig. 3, which opens, preferably when a certain adjustable pressure is reached, to bye-pass liquid to the sump and so to the pump to maintain a constant pressure in the motor inlet. The motor is thus driven at substantially constant torque and may thus, e.g., operate an aeroplane cabin supercharger to maintain constant air pressure with change of altitude and engine speed. The pump and motor comprise each a series of vanes 48 having edge contact with the casing and recessed to .engage rings 52 coaxial with the casing, the engaging faces of the recess being cylindrically curved to permit rocking of the vanes. In another form, the pump delivery at a certain pressure raises a spring pressed cylindrical cup having a bye-pass hole normally blocked by a conical valve formed on the stem of a valve which at low speeds and pressures closes the motor inlet under the pressure of the cylinder spring, the valve being opened by rising pressure, its opening movement being limited by a stop. Fig. 5 shows another form in which the pump delivers through a passage 368, pressing a ball valve 372 back to pass liquid through passage 390 to the motor ; at a certain pressure, the ball and a cylinder on which it rests are forced back till the ball alone is stopped and liquid is bye-passed through the cylinder.
Patent GB-708989-A (GB)
Title: Improvements in suspension devices for goods on display racks
IPC: A47F5/08
Filed: 1952-04-08
Abstract: 708,989. Racks. FIECHTER, E. April 8, 1952 [April 9, 1951], No. 8929/52. Class 52 (3) A suspension device for goods on display racks comprises a supporting element to which the article is attached and a fastening element formed of three parts bent approximately in three mutually perpendicular directions, one part forming a shank passed through an aperture in a plate with one end piece behind the plate and another in front, the supporting element being inserted between 'it and the plate. As shown the fastening element comprises a U-shaped fastening member 1 with legs 2 which pass through apertures 3 in a plate 4, the ends of the limbs being bent to form upwardly projecting portions 5. The article to be supported is attached to the forwardly projecting arm 6 of an angled support 7, the other arm of which is passed between the web of the U-shaped member and the plate 4.
Patent GB-351935-A (GB)
IPC: F16F7/04
Filed: 1930-03-21
Abstract: 351,935. Lighting systems. BOBROFF, B. L., 9, Main Street, Racine, Wisconsin, U.S.A. March 21, 1930, No. 9136. Convention date, Jan. 3. [Class 75 (iv).] A signalling device for vehicles has a casing fitted to each side of the vehicle and having converging front and rear walls 12, 13, each having a number of selectively lit signal sections, one section D acting as a parking light which shows a red light rearwardly and also, through a glass panel 52, shines downwardly on to the road and the side of the car. Specification 351,407, [Group XXXVII], is referred to.
Patent GB-940872-A (GB)
Title: Improvements relating to the conversion of analogue to digital signals
Inventor: YOUNG IAN ROBERT
IPC: H03M1/00
Filed: 1960-03-15
Abstract: 940, 872. Electric selective signalling systems. EVERSHED & VIGNOLES Ltd. March 21,1961 [March 15, 1960], No. 9139/60. Heading G4H. A shaft encoder comprises a pair of coded discs, 3, 4, Fig. 1, having concentric rings of raised and lowered portions and being mounted on a cylindrical magnet 19 whereby one disc assumes a north polarity and the other a south polarity, and the position of the discs is sensed by a plurality of heads each comprising a pair of coils 18 and a central armature 15 cantilevered on a pair of piezo-electric crystals 16. In operation each armature is reciprocated within its coils at 400-1, 100 c/s by the piezo-electric crystal mounting, whereby the signal induced in the coils depends upon whether the armature is opposite a raised or a lowered portion of the coded discs 3,4. A monophilic code is preferably used.
Patent GB-164194-A (GB)
Title: Inverted gas mantle protector
IPC: F21H1/00
Filed: 1920-03-30
Abstract: 164,194. Chawner, W. H. March 30, 1920. Mantle accessories. - An inverted gas mantle protector comprises a perforated disclike member provided with two oppositely disposed arms, which terminate in perforated curved parts, adapted to engage the carrier ring of the mantle so as to support the member immediately beneath the mantle. In one form, a perforated disc-like member a, arms a<1>, a<2> and curved parts a<3>, a4, are formed from a single piece of sheet metal. Apertures a<6> in the part a<3> are slidingly engaged with projections b<2> on the mantle ring b<1> and the part a<4> is sprung into engagement so that an aperture a' engages the remaining projection b<2> on the mantle ring. The protector may be formed by uniting separate parts. The Provisional Specification states also that the disclike member is substantially 1¥ inches in diameter and each arm is substantially # of an inch in width.
Patent GB-1282061-A (GB)
Title: Polymerization of bis-(acryloxyalkyl) carbonates
IPC: C07C69/54
Filed: 1970-02-26
Abstract: 1282061 Coating substrates PPG INDUSTRIES Inc 26 Feb 1970 [2 June 1969 (2)] 9216/ 70 Heading B2E [Also in Divisions C2 and C3] Coated substrates e.g. metals, wood, and plastics are prepared by polymerising with ionising radiation a composition comprising bis(acyloxyalkyl) carbonates. Examples describe the coating by draw-down methods of aluminium, wood and vinyl plastics with bis (acryloxyethyl carbonate, and the reaction product of a bischloroformate of ethylene glycol with 2-hydroxyethyl acrylate, followed by polymerisation by electron beam impingement. Ultra-violet light was also used to polymerise coatings on aluminium of bis-(methacryloxyethyl) carbonate, of the reaction product of phosgene and glycerol 1, 3 dimethacrylate, of the reaction products of a bischloroformate of diethylene glycol and 2-hydroxyethylmethacrylate and of pentaerythritol triacrylate. Compositions of reaction products of glycerol 1, 3-diacrylate and glycerol 1, 3-dimethacrylate and phosgene, pentaerythritol triacrylate and phosgene, bischloroformate of diethylene glycol with 2-hydroxyethyl acrylate and methacrylate, and others are also applied to aluminium panels and polymerised by electron beam impingement.
Patent GB-421238-A (GB)
Title: Improvements in or relating to paving, floor and like surface-covering materials composed of soft or hard rubber
IPC: B29C37/00
Filed: 1934-03-24
Abstract: 421,238. Rubber Scoring ; tiles. SOC. ITALIANA PIRELLI, 21, Via Fabio Filzi, Milan, Italy. March 24, 1934, No. 9289. Convention date, Nov. 22, 1933. [Class 70] Rubber floor and like surfacing material having protuberances on its under side to enable it to be keyed to an underfloor which is plastic at the time of laying the rubber, is moulded and vulcanized in contact with a layer of coarse fabric, which is subsequently stripped from the impressed surface. Tiles may be formed between the heated platens of a press. For long lengths, a sheet of rubber 7 is fed round a heated drum 10, pressure being applied by means of an endless band 18. Between the rubber and the band 18 is an endless belt of coarse fabric. The material may be reinforced as required.
Patent GB-551684-A (GB)
Title: Improvements relating to retractable landing gear for aircraft
IPC: B64C25/22
Filed: 1939-03-24
Abstract: 551,684. Hydraulic machines. BRISTOL AEROPLANE CO. Ltd., FRISE, L. G., and PONTING, R. March 24, 1939, No. 9354. [Class 69 (ii)] [Also in Group XXXIII] A retractable landing-gear for aircraft comprises a hydraulic accumulator connected to an operating jack through a control valve and a large bore pipe, the accumulator being kept charged by a continuously working pump through a small bore pipe and an air vessel being associated with the outlet from the jack. A pump 48, which may be' driven by the aero-engine. delivers oil at low pressure through a pipe 47 to a booster 43, described in Specification 551,683, from which oil at high pressure passes through pipes 44, 45, 46 and a non-return valve 42 to the hydraulic accumulator 37. Air under pressure is introduced into the upper end of the accumulator above a floating piston 38. Should the pressure become too great a piston 52 is depressed to open a by-pass valve 5'6 in the pump circuit. A pressure-relief valve 54 also is provided in the pump circuit. A valve 35 controls the operation of a jack 32 connected to the undercarriage, oil from the exhaust side passing to a closed chamber 53 from which it more slowly escapes through a filter 60 to the oil reservoir 50. The booster 43 may be omitted. The accumulator, jack, valve 35, and chamber 53 may be arranged in a wing remote from the pump circuit, to actuate through short large bore pipes an undercarriage similar to that described in Specification 463,807, [Group XXXIII].
Patent GB-1172306-A (GB)
Title: Improvements in Hand Actuated Liquid Dispensing Pumps
IPC: F04B9/14
Filed: 1967-02-28
Abstract: 1, 172, 306. Reciprocating dispensing pumps. CALMAR, INC. Feb.28, 1967 [March 1, 1966], No. 9447/67. Heading F1A. The piston 24 of a dispensing pump is formed with an outlet valve comprising a flexible sleeve 45 seating on the rod 29 of an inlet valve 28, upward movement of which is restricted by fingers 32. Above the sleeve 45 is a further sleeve 47 forming part of the outlet passage and having a seat 48 for a valve head 52 formed on the end of the rod 29 whereby when the piston is at the top of its cylinder the outlet passage is closed; in addition, in this position a skirt 68 on the piston engages in a recess (72) formed on the cylinder. When the piston is at the bottom of the cylinder, the skirt 66 engages in the groove 64. An air inlet port 44 is provided.
Patent GB-853576-A (GB)
Title: Improvements in or relating to systems of automatic gain control
Inventor: GOFF PAUL FREDERICK
IPC: H04N5/52
Filed: 1957-03-22
Abstract: 853,576. Automatic gain control arrangements. PLESSEY CO. Ltd. March 24, 1958 [March 22, 1957], No. 9473/57. Class 40(5). A mean level automatic gain control system (AGC) has a resistance connected between the anode of a clamping diode and a filter in the control grid circuit of a valve. A variable positive potential is applied to the junction of the resistance and clamping diode, and a negative potential dependent on the control grid current of the valve is applied to the other end of the resistance, the arrangement being such that an AGC voltage may be obtained from each end of the resistor. In the embodiment shown, a video signal CVW is applied to the grid of a synchronization separator V1 such that when the signal exceeds the bias of the valve, grid current flows and produces a negative potential across R6 which is applied through the filter network R5C3, R4C2, R3C1 to the anode of the rectifier M1. The positive potential is applied to the anode of M1 via a variable potentiometer R1 and a resistor R2 and by adjustment of the potentiometer the negative voltage at the anode of M1 can be partially cancelled out. The resulting voltages at point A and point B are then used to supply the required AGC, the potential at A being less negative than that at B. The potentiometer R1 is usually a contrast control, thus for constant contrast the negative potential across R6 will be constant and the potential difference between points A and B will depend on the setting of R1. With a weak signal R1 will be set so that a maximum positive voltage is applied to M1 and vice versa. Thus with a picture of constant contrast the amount of delay voltage developed across R3 will be inversely proportional to the signal strength. With very weak signals the positive potential from R1 causes M1 to conduct thus preventing points A and B from going positive.
Patent GB-160828-A (GB)
Title: An improved dry cell, particularly adapted for use with electric pocket lamps
IPC: H01M6/12
Filed: 1921-03-31
Abstract: 160,828. Skorpik, J. March 31, 1921. Electrodes; connections; electrolytes; cases; cells.-A dry battery for use with pocket lamps is constructed so that exhausted materials can be readily renewed. Each cell comprises a carbon electrode d mounted in a metal holder e to which a terminal strip i is secured. Surrounding the electrode d is a removable unit comprising depolarizing plates k of manganese dioxide and graphite not greater than 3 mm. in thickness, and electrolyte carriers l of corrugated cardboard &c., the whole being clamped together by a zinc electrode c which is bent into the form of a book cover and is formed with a slot f to receive a terminal g fixed to the cover b. The electrolyte consists of an excitant mixed with gum tragacanth or other substance which swells on the addition of water. A sheet of blotting paper may be placed between the electrolyte carriers l and depolarizing blocks k. The constituent parts of the removable unit may be connected together by an agglutinant. The cover b of the battery is secured by a spring- clip h. The battery is activated by partially filling the casing with water, superfluous water being drawn off through an opening in the casing which also serves to limit the height to which the battery can be filled.
Patent GB-241109-A (GB)
Title: Improvements in and relating to quinine compounds & process of making the same
Filed: 1925-04-15
Abstract: Quinine bisalicylosalicylate is prepared by bringing together in aqueous solution an acid quinine salt, e.g. quinine bisulphate, and a soluble salt of salicylosalicyclic acid, in the proportion of one molecule of the former to two of the latter.  The quinine bisalicyclosalicylate, which is nearly insoluble in water, separates out and is dried at a temperature not exceeding 60 DEG  C. It melts at 86 DEG  to 88 DEG  C. and has therapeutic properties.
Patent GB-743920-A (GB)
Title: Improvements in or relating to weaving looms
IPC: D03D45/34
Filed: 1953-04-10
Abstract: 743,920. Shuttle-changing looms. BUTIN, E. A. April 10, 1953 [April 18, 1952], No. 9816/53. Class 142 (2). A device for facilitating the removal of the empty shuttle from a loom having shuttle changing mechanism as described in Specification 644,363 comprises a box 9 disposed, when not in use, alongside the shuttle-box 17, but which upon shuttle change is swung about its pivot 6a so as to bring its inner end into the position normally occupied by the shuttle receiving end of the shuttle-box 17. The empty shuttle is guided by the box 9 to an inclined shoot. To slow down the shuttle in the box 9, a swell 21 is provided, pivotally mounted upon arms 23, 24 and brought into operation when the box 9 is swung into shuttlereceiving position. During shuttle changing, the box 17 remains stationary at the rear while the slay 18 continues its forward movement.