baber/WOPTO huggingface dataset:
Patent GB-1351572-A (GB)
Title: System and method for enciphering a block of data
IPC: H04L9/00
Filed: 1972-05-31
Abstract: 1351572 Diesel transmission; ciphering INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [30 June 1971] 25351/72 Heading H4P A system for ciphering blocks of data comprises dividing each block into segments and performing, e.g. ciphering operation on the first segment, combining a portion of the ciphered first segment with a second segment to form a composite block on which is performed a second ciphering operation the result from which is combined with the remainder from the first ciphering operation to form a composite block cipher. The arrangement may be used either for transmission to one or more remote terminals and vice versa, or to provide secure storage. The first and second operations may be performed successively in the same ciphering apparatus. A data block divided into segments A-C is placed in register 20, segments A, B being loaded into a further device 22, comprising two sections L, R which are then ciphered, the ciphering being determined by a subscriber key register 26 through gate 24. A portion comprising say 64 bits in section L is transferred into section E of a register 28 and is held there until this is filled, with portion (X) in section R remaining for a further operation. Group C is then transferred from register 20, into section L, and together with (X) is developed into a new cipher G, F of say 128 bits which is then transferred from register 22 into register 28 E-G then being transmitted. Register 22 is thus used twice in succession performing the first and second ciphering operations. At the receiver a converse process takes place to provide segments A<SP>1</SP>-C<SP>1</SP> corresponding to the original A-C. While two ciphering operations are used, a greater number may be employed. To provide additional security, alternate ciphering operations may be controlled by a random number generator 43 through a gate 44 controlled at 42 so that gate 24 is open when 44 is closed and conversely, a converse operation being formed at the receiver by an identical random number generator 43<SP>1</SP>. This provides an error check as the numbers generated at transmitter and receiver should be identical, this is detected by a comparator 50. Data banks, e.g. tapes, discs and recording drums may also be made more secure by ciphering the information recorded thereon. A method is described in connection with Fig. 2 (not shown) whereby segments within blocks do not become transposed for transmission, but this lengthens the lengths of blocks transmitted. However the additional length can be utilized for verification with only the present and immediately preceding block being temporarily stored.
Patent GB-208246-A (GB)
Title: Improvements in electrical step-by-step motor systems
IPC: G08C19/00
Filed: 1922-09-20
Abstract: 208,246. Barr & Stroud, Ltd., and French, J. W. Sept. 20, 1922. Order, apparatus.- In signalling systems employing step-bystep direct current motors having three or more magnet coils, large reductions of the motor current, due to self induction at high speeds, are prevented by inserting resistances having little or no selfinduction in series with the respective motor coils through the intermediary of the transmitting commutator. As shown in Fig. 1, the motor A has three magnet coils 1, 2, 3 which are connected to the contacts C<1>, C<2>, C<3> of a commutator B through resistances R<1>, R<2>, R<3>. Fig. 2 shows a modification wherein two resistances are employed in connection with a three coil motor. When any single coil is excited, one or other or the resistances R<4>, R<5> is in series with the coil and when any two coils are simultaneously excited, the resistance R<4> is in series with one of the coils and the resistance R<5> with the other. In a further modification the resistance R<6>, Fig. 3, is always in circuit and the resistance R<7> is switched in when two motor coils are simultaneously excited. A modification comprising the use of resistances with a four coil motor is also described. The resistances may be inserted in the line or common return wires, or be distributed over the line and common wires.
Patent GB-1093354-A (GB)
Title: New azo dyestuffs containing a fibre-reactive grouping and an organic disulphonic acid radical and processes for their manufacture and use
IPC: C09B62/09
Filed: 1965-06-16
Abstract: The invention comprises acylaminophenylene azo dyes containing a heterocyclic fibre-reactive group and the residue of para-phenylene 2:5 or 2:6-disulphonic acid, the azo component containing the fibre-reactive substituent when the dyestuff does not contain a heterocyclic fibre reactive group in the coupling component.  The para-phenylene disulphonic acid group may be between two azo bridges or between an azo bridge and an acylamino group which itself may contain an azo bridge.  Preferred dyes are those of the formulae <FORM:1093354/C4-C5/1> and <FORM:1093354/C4-C5/2> wherein m and n are each 1 or 2, Z is an acyl group, and Y is the residue of a coupling component which must contain a fibre-reactive halogenated heterocyclic acyl group bound in a position vicinal to an enolized or enolizable keto group when Z is not a fibre-reactive heterocyclic acyl group; and wherein Y1 is the residue bound to the azo group in 4-position, R is a 1:4-phenylene or naphthylene residue and X is a monochloro-1:3:5-triazine residue, a di-or tri-chloro-pyrimidine residue, a 2-chloro-benzthiazole-SO2 or-CO residue or a chloro-quinoxaline-CO residue.  The dyes may be obtained by coupling an appropriate diazo and coupling component or by condensing an appropriate aminoazo dye with an acylating agent. Examples are given for the production of the dyes.  They are useful for dyeing or printing materials containing cellulose.ALSO:1:4 - Phenylenediamine - 2:5 - disulphonic acid is obtained by heating a solution of paraphenylenediamine sulphate in 25% oleum to 140 DEG  C., maintaining thereat for 4 hours, cooling, adding to ice-water and working up the precipitate.  1:4 - Phenylenediamine - 2:6 - disulphonic acid is obtained by neutralizing the filtrate from the above reaction, concentrating the solution, reacidifying with HCl and adding NaCl to salt out the product.  4 - Acetylamino - 1 - aminobenzene - 2:5 - or 6-disulphonic acid is obtained by treating the corresponding para-phenylenediamine-2:5- or 2,6-disulphonic acid with acetic anhydride.
Patent GB-1480331-A (GB)
Title: Device for stopping vehicles
IPC: E01F13/12
Filed: 1974-08-14
Abstract: 1480331 Device for stopping vehicles R B W LOWNDES 14 Aug 1974 [29 May 1973] 25519/73 Heading EIG  A device for deflating pneumatic tyres comprises hollow spikes 11 releasably mounted as a push fit in cups 14 or apertures on a support 13. The spikes are grooved or fluted and may include explosives. The spikes are secured to a tape 10, Fig. 2, by upper and lower plates 13, 12 held to the tape by rivets 15 with the spikes 11 releasably engaging a cup 14. Alternatively, Figs. 3 and 4 (not shown), the spikes may be supported in cups within a solid resilient block on the tape. In another embodiment, Fig. 5, the spikes 11 are mounted in resilient blocks 17 having ballasted bases 18 so that they tend to land upright when projected. In a further embodiment the spikes are mounted on the arms of a lazy tongs or an extendable lattice, Fig. 6 (not shown).
Patent GB-489464-A (GB)
Title: Non-inflammable paint
IPC: C04B28/26
Filed: 1937-10-06
Abstract: A fireproof paint contains sodium silicate, lithopone and asbestos. Examples are given of such paints containing also ochre and micaceous iron ore.
Patent GB-1500767-A (GB)
Title: Delayed-action door closing device
IPC: E05F3/10
Filed: 1975-06-16
Abstract: 1500767 Fluid dampers; valves GKN STENMAN AB 16 June 1975 [20 June 1974] 25630/75 Headings F2S and F2V [Also in Divisions E1-E2] In a door closing device a casing 2 houses a pinion 3, co-operating with a door actuating member, engaged with a rack 6c on a piston 6 slidable in a cylinder 5 against the action of a spring 9, the wall of the cylinder 5 having a channel 11 connecting opposite ends of the piston so that during movement of the piston 6 fluid flows through the channel 11 to an opposite end of the cylinder through a constricted passage formed in a valve member 31 provided with a piston member 30 which is movable against a spring 16 to limit the fluid flow through the channel 11 when the fluid pressure has built up during the door opening operation so as to form a damping means to damp the movement. Fig. 2 illustrates the position of the various parts of the device when the door closure is being delayed. Fig. 4 illustrates the position of the various parts of the device when the door subjected to a high speed opening action. During this latter action a spring-loaded safety valve member 33 comes into operation. In operation, when the door is opened, the piston 6 is displaced to the left against the force of the spring 9 and oil in the left hand end of the cylinder 5 is forced through a branch channel 11d, the main portion of the channel 11 and the branch channels 11b and 11a to the right hand end of the cylinder 5. At the same time the branch channel 11d short circuits the constricted passage 15 until the portion 6b of the piston closes the branch channel 11d such that the oil is forced to flow through the branch channel 11c and past the parts of valve members 31. A valve screw 12 is provided at the opposite end of the channel 11 which can be turned to control and damp the flow of oil through the branch channels 11a and 11b.
Patent GB-502680-A (GB)
Title: Improvements in or relating to the isolation of boron fluoride
IPC: C01B35/06
Filed: 1937-09-21
Abstract: 502,680. Distilling solutions of boron fluoride. DU PONT DE NEMOURS & CO., E. I. Sept. 21, 1937, No. 25636. Convention date, Oct. 10, 1936. [Class 32] Boron fluoride is separated from its admixture with water by distilling the mixture under at least two different pressures. The pressures may be subatmospheric and atmospheric or 'atmospheric and superatmospheric, the fluoride distilling at the higher pressure. The distillation may be carried out in the presence of an aliphatic acid, such as acetic acid.
Patent GB-1235171-A (GB)
Title: An opener for fibrous material
IPC: D01G9/06
Filed: 1968-05-29
Abstract: 1,235,171. Opening fibrous material. MASCHINENFABRIK FRIEDRICH HAAS G.m.b.H. & CO. 29 May, 1968 [21 June, 1967], No. 25656/68. Heading D1N. Fibrous material, e.g. bleached cake, moving in direction 6 on conveyor feed belt 2 is opened by rotating pinned roller 8, positioned adjacent the discharge end of the belt 2 and mounted for displacement in direction 6 away from the belt. Upper and lower application rollers 13 and 5 are provided, roller 13 being mounted on pivotal cranked levers 14 for pivotal movement about bearing 15. Opening takes place at points 23 and 24 depending on whether roller 8 is rotating in direction 28 or 27.
Patent GB-205961-A (GB)
Title: Improvements relating to stands for electric irons
IPC: D06F79/02
Filed: 1922-09-23
Abstract: 205,961. Jenkins, R. Sept. 23, 1922. Stands for handirons. - An electrically heated iron derives its current through a thermal switch located in a stand so that when the iron is placed on the stand the current is automatically switched on or off to keep the. temperature of the iron between desired limits. As shown in plan in Fig. 3 with the perforated top plate removed, the stand is in the form or a rectangular box supporting two soft iron wires g, g<1> arranged T fashion, wire g being secured to an adjustable screw o<1> and fixed pin o<2> and wire g<1> to a spring-controlled contact arm k pivoted at i<1> and carrying a platinum pin p<1>. When the leads to the iron have been connected up to the plug points u in circuit with the supply leads n, n<3> and the iron is placed on the stand, the heat generated causes the wires g, g<1> to extend and the. circuit consequently to break at the points p, p<1>. When the iron has cooled down sufficiently, the circuit is again completed and the heating-up of the iron re-commences.
Patent GB-800285-A (GB)
Title: Improvements in or relating to internal combustion engine electric ignition distributor apparatus
Filed: 1956-08-23
Abstract: 800,285. Interrupters. GENERAL MOTORS CORPORATION. Aug. 23, 1956, No. 25774/56. Class 38 (5). A contact-breaker assembly or engine-suction operated ignition distributer 22 has an adjustable fixed contact 37 and a moving contact 35 on a breaker arm 90 pivoted on a pin 66 on a plate 26 having a lug 30 receiving an insulator 42, moulded from nylon and a clamping piece 52 for holding the resilient end 50 of the arm 90. The insulator 42 fits over the lug 30 and the clamping piece 52 has a clearance hole 56 and a threaded hole 54 for a bolt 58 which holds the arm end 50 against the insulator and also holds a terminal 62 between its head 60 and the clamping-piece 52, so that the arm 90 and the terminal are electrically connected but insulated from the lug 30. The plate 26 has a second lug 32 through which a screw 34, accessible from outside the distributer casing, passes and is threaded into a lug 70 on a second plate 72 pivoted about the pin 66 and carrying the fixed contact 37, so that rotation of the screw 34 adjusts the position of the contact 37, the lugs 32, 70 being biased apart by a spring 82. Location of plate 72 on plate 26 is assisted by a spring washer and bolt or rivet 78 working in an arcuate slot in the plate 26.
Patent GB-172706-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B75/02
Filed: 1920-09-07
Abstract: 172,706. Wilson, F. M. Sept. 7,1920. Valves; valve-gear.-Mixture drawn into the crank case of a four-stroke engine through the valve-controlled port 7 is compressed and delivered in two parts to the cylinder. The admission ports 4, 5 are controlled by a ported sleeve valve 14 sliding between the cylinders and piston, the piston overrunning the ports in the sleeve. The sleeve also controls the exhaust ports 25; on the suction stroke, the piston moves down some distance in the sleeve before any ports open, thus producing a vacuum and assisting lubrication. At half crank-case compression, the top admission port 4 opens and some mixture enters; towards the end of suction stroke, the bottom admission port 5 is uncovered and the remainder of the charge is forced in, the pistons having completed compression in the crank case. On the compression and firing strokes, the ports are closed either by the sleeve or by the piston. The half-speed shaft 18 driving the sleeve valve is offset so that the sleeve moves down quicker than up. The ports 4, 5 on the sleeve valve and the supply pipes and ports may be duplicated for each cylinder.
Patent GB-1294794-A (GB)
Title: Fibrous sheet material and method and apparatus for forming same
IPC: B31F1/12
Filed: 1971-04-19
Abstract: 1294794 Bonded creped sheet material; spot bonded fabric; paper - making apparatus SCOTT PAPER CO 19 April 1971 [13 April 1970] 25797/71 Headings D1L D1R D2A and D2B A fibrous sheet material having a basis wt. of 6-60 1b. per 2880 sq. ft. and having a pattern of raised areas and depressions on each of its surfaces has a bonding material disposed in the raised areas on one side of the sheet, the raised surfaces of the bonded areas being finely creped to impart softness. Web formation. The bonded, creped sheet may be formed from a web formed by depositing fibres on a foraminous screen by an airlaying or wet-laying method. The fibrous material may be short cellulosic fibres, or a blend of relatively short and long fibres, the latter being cotton, wool, regenerated cellulose, e.g. rayon, cellulose ester, e.g. cellulose acetate, polyamide, polyester, vinyl, acrylic, protein, fluorocarbon, nitrile, or dinitrile fibres. The fibrous material may be treated with conventional wet strength additives, e.g. urea-formaldehyde resins, or chemical debonding agents, e.g. cationic surface active agents before or after formation of the web but prior to drying thereof. The web is preferably formed under conditions of little or no pressing while it is wet until substantially dry, and may be creped prior to application of the bonding material. Bonding and shaping web. In a typical embodiment, see Fig. 2, the web 19 is fed between a smooth rubber press roll 23 and a patterned metal rotogravure roll 24 which dips into a pan 25 containing bonding material. The bonding material, which may be applied in a spotted or reticular pattern, Figs. 4, 5 (not shown), may be an acrylate latex rubber emulsion; an acrylate, methacrylate, vinyl acetate, vinyl chloride emulsion; a mixture of glue, urea-formaldehyde resin and polyethylene oxide, carboxymethyl cellulose, polyvinyl alcohol, polyacrylamide, or dextrin, or a.mixture thereof. The treated web issuing from between rolls 23, 24 is passed around a rotatable creping drum 27 and removed therefrom by creping blade 28, which causes unbonded web portions to puff and arch up. The web is then passed through calender rolls 30, 31 and wound into a roll 32. In a modification, Fig. 3 (not shown), the metal rotogravure roll, together with its pan containing bonding material, is arranged directly beneath the creping drum so that the bonding material is applied to the surface of the drum and transferred therefrom to the web. Paper-making apparatus. A paper-making machine, see Fig. 1, which may be used to form the web comprises headbox 10 having a slice 11, a foraminous wire 12, a carrying member 15, which may be either a wire or a felt, a drying drum 21, and creping blade 22. The wet web may be transferred to the carrying member with the aid of a pick up roll 17 provided with vacuum box 20, or air knife 18.
Patent GB-1260157-A (GB)
Title: Apparatus for use with underwater wells
Inventor: PETERSEN WILLIAM HENRY
IPC: E21B33/035
Filed: 1969-05-21
Abstract: 1,260,157. Taking up slack in flexible elements. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 21 May, 1969 [23 May, 1968], No. 25843/69. Heading B8B. [Also in Divisions E1-E2 and F2] An apparatus 40 for carrying out operations on an underwater well installation from a surface vessel, comprises telescoping members 41, 42 which compensate for rise and fall of the vessel, and means 70, 72 which take up the slack in a flexible cable 66. The means 70, 72 comprise a sheave 72 mounted on the member 41 and a weighted sheave 70 movable in a slot 17 in the same member. When the members 41, 42 telescope together, the sheave 70 descends in the slot 71 to take up the slack in the cable 66. When the members 41, 42 extend, the sheave 70 rises in the slot 71. Damping cylinders 50, 51, Fig. 3, cushion the telescoping members against extension loads. The cable 66 may be a control line for carrying signals to a tool 65 which is to be connected to the well-head. In use, the apparatus 40 together with the tool 65 is lowered on a pipe string 39 along a guideline 29 and the tool latched to the well-head.
Patent GB-711870-A (GB)
Title: Improvements relating to multi-ply bags
IPC: B65D30/24
Filed: 1951-11-06
Abstract: 711,870. Paper bags. ST. REGIS BATES SOC. ANON. Nov. 6, 1951. [April 28, 1951], No. 25945/51. Class 94 (2) A multi-ply bag formed from a section of multiply tube has at least one protruding stepped corner flap of which at least one ply has an extension and one an equal length recess, while at least one outer ply is neither extended nor recessed. In one embodiment, Figs. 3, 4, the inner and outer plies 4, 1 are neither extended nor recessed at the corners. Ply 3 'has extended flaps at the left corners and recessions at the right corners while ply 2 has recessions at the left corners and extensions at the right corners. The corner flaps l, m, are separated from the side flaps p, q, by cuts. One corner may be left ungummed to provide a valve. For an open bag, only the bottom end is so formed or a sewn bag may have one corner only so formed and the bag may have longitudinal folds, Fig: 6 (not shown).
Patent GB-1196375-A (GB)
Title: Process for the production of Dimensionally Stable Polyethylene Terephthalate Films
IPC: B29C55/00
Filed: 1968-05-30
Abstract: 1,196,375. Polyethylene terephthalate films. KALLE A.G. 30 May, 1968 [1 June, 1967], No. 25956/68. Heading B5B. Dimensionally stable polyethylene terephthalate films capable of lying flat are made by stretching a film of amorphous polyethylene terephthalate having a mean molecular weight of less than 13,500 at a temperature of 85‹ to 95‹ C. with a force of not more than 0.5 kg./ mm.<SP>2</SP> to a draw ratio of at least 3 : 1 in orthogonal directions of the film plane and then heating the film for at least 5 seconds to a temperature of at least 200‹ C. while it is held under tension such that its dimensions remain constant. The film may be simultaneously stretched in both said directions to a draw ratio of at least 3 : 1 with a force of not more than 0À2 kg./mm.<SP>2</SP> In a preferred embodiment, the film is made by melting a polyester material of appropriate molecular weight in an extruder at 260‹ to 300‹ C., preferably 275‹ to 290‹ C., and producing a film which is then cooled on a roller at 20‹ to 60‹ C., preferably 20‹ to 30‹ C., stretching the film so made, especially at 90‹ or 91‹ C., in orthogonal directions of the film plane at a draw ratio of 3 : 1 to 4 : 1, and heatsetting it at 200‹ to 240‹ C., preferably between 220‹ and 230‹ C., while it is held under tension to prevent shrinkage, for 5 to 20 seconds. Examples are given.
Patent GB-1501077-A (GB)
Title: Slant axis rotary fluid machine
IPC: F01C9/00
Filed: 1976-06-23
Abstract: 1501077 Rotary positive-displacement fluid machines CATERPILLAR TRACTOR CO 23 June 1976 [5 Nov 1975] 26120/76 Heading F1F The rotor of a nutating-disc fluid machine has a peripheral flange 32 having a plurality of apices 36 with seals 40 on each side face 34, the side faces being relieved as at 60, 62 from the theoretical profile around each apex to prevent interference between the rotor and housing surface 18 when fluid-pressure causes slight axial deflection of the flange 32, the amount of relief being insufficient to significantly affect the compression ratio. As shown the relieving is confined to 30 degrees on each side of the apices. The machine may be a 2- or 4-stroke I.C. engine, a pump or a compressor.