baber/WOPTO huggingface dataset:
Patent GB-1037489-A (GB)
Title: Improvements relating to articulated chains
Inventor: MAISEY ALBERT JOHN
IPC: G21C17/00
Filed: 1963-08-30
Abstract: 1,037,489. Chains; taking up slack in flexible elements. FAIREY ENGINEERING Ltd. Aug. 28, 1964 [Aug. 30, 1963], No. 34483/63. Headings B8A and B8B. An articulated hoist chain comprises a series of rigid open-ended tubular links 60 pivotally connected in alignment with one another by means of universal-joint connections which permit each link to pivot through a limited angle relatively to the adjacent link about two transverse pivotal axes, there being a continuous internal passage through the chain from end to end. Each link at each end comprises two axially-protruding tapering nose portions 61, those at one end being angularly displaced by 90 degrees with respect to those at the other end. The universal joint comprises a gimbal ring 64 pivotally connected to the end portions 61 by screws 65, 66. In a modification the pivot pins are welded to the links. The chain is used in a hoist of a fuelling machine for servicing vertical channels in the core of a nuclear reactor, flexible service leads, such as electric cables, pneumatic or hydraulic pipes, or flexible mechanical drives extending through the central passage formed by the aligned bores of the tubular links of the chain. Four powerdriven hoists 30, Fig. 2 (not shown), are mounted on a platform 21 at equal angular spacings around a charging tube 15, and the platform 21 can be rotated through successive angular steps of 90 degrees so as to bring each of the hoists 30 in turn into alignment with a telescopic drive shaft mechanism 36.
Patent GB-1071231-A (GB)
Title: Nucleosides
IPC: C07H19/16
Filed: 1964-08-24
Abstract: <FORM:1071231/C2/1> New compounds of Formula I where R1 and R2 are each H or are combined as alkylidene, and R3 is H, Na, K, Li, NH4, alkyl or aralkyl are prepared by reacting a compound of Formula II with an alkali metal xanthate (or with CS2 and alkali metal hydroxide), and thereafter, if desired, liberating the free acid from the resultant salt and, if desired, neutralizing the free acid with NH3 or alkylating or aralkylating it.  Compounds of Formula III wherein R4 is H, OH, NH2, alkyl, aralkyl or cycloalkyl, R5 is H or alkyl or R4 and R5 together complete a heterocycle are prepared by oxidizing compounds of Formula I to convert the thio group to a sulphonyl group and reacting the product with NH3, NH2NH2, NH2OH or an amine. NHNH2 may be reduced to NH2.  Compounds of Formula III in which R4 is not H are claimed per se.  2 - Methylsulphonyl - 21,31 - O - isopropylidene-inosine is prepared by H2O2 oxidation of the corresponding 2-methylthio compound.
Patent GB-1138246-A (GB)
Title: Process for the production of high strength aluminum base alloy articles
Inventor: FOERSTER GEORGE STEPHEN
IPC: C22C1/04
Filed: 1966-08-02
Abstract: 1,138,246. Extruding; working at specified temperatures. DOW CHEMICAL CO. 2 Aug., 1966, No. 34637/66. Headings B3P and B3V. [Also in Division C7] High strength aluminium base alloys comprising one of: the balance being aluminium wherein,the min- Cu content is given by the equation Cu = KX +4 (with K a constant for the particular element and equal to 5 for Ca, 0À6 for Cr, 2À0 for Fe, 0À5 for Mn, 1À5 for Misch metal, 1À3 for Ni or 0 for Si and X being the content of the additive metal in weight per cent) are made into articles by atomizing them (e.g. by jet or disc-type atomizing devices), the pellets being preheated to 315-537‹ C. and extruded from a container which is kept at 260-454‹ C., after which the extrudate is solution treated at 482-537‹ C. for at least one minute, quenched (e.g. in water) and aged at 148-204‹ C. for 5-20 hours.
Patent GB-1193278-A (GB)
Title: Improvements in or relating to Processes and Apparatus for Preserving Wet Biological Substances
Inventor: LEVIN EZRA
IPC: A23J1/04
Filed: 1967-07-27
Abstract: 1,193,278. Preserving foods and animal feeds. E. LEVIN. 27 JULY, 1967 [27 July, 1966], No. 34646/67. Heading A2D. Biological substances, such as fish, meat, including offal, eggs and coconut, for use as food or animal feeds, are preserved by providing a concentration of sulphurous acid within the substance of 0.1-3.0% by weight, converting the substance into particles, heating the particles to at least 65‹C. for a sufficient time to volatilize a portion of the sulphurous acid and convert a second portion of the sulphurous acid into sulphate, removing the vapours and gases from the atmosphere surrounding the particles, and drying the particles to a moisture content of less than 10% of the weight of the particles. The sulphurous acid may be added to the biological substance in the form of sulphur dioxide gas or as a sodium bisulphite. The subsequent treatment of the material, especially where the material is meat or fish, is preferably carried out by azeotropic distillation as described in Specification 1,127,329.
Patent GB-1520471-A (GB)
Title: Low-glare overhead projector
IPC: G02B1/04
Filed: 1975-08-20
Abstract: 1520471 Overhead projectors MINNESOTA MINING & Mfg CO 20 Aug 1975 [21 Aug 1974 3 March 1975] 34651/75 HeadingG2J [Also in Division B5] An overhead projector has a light source, a lens arrangement 100, 101, 102, a support 99 for a transparency to be projected and a projection head; the lens arrangement comprising at least two surfaces 100, 101, 102 each formed with an array of straight, parallel grooves and ridges; the grooves and ridges of one array being inclined to those of the other(s). The purpose of this lens arrangement is to reduce glare. Fig. 12 shows a triplet of arrays angled at 60 degrees to each other, Figs. 13, 14 (not shown) show two such triplets relatively displaced by 10 degrees, Figs. 4 to 8 (not shown) show a pair of arrays at right angles; Figs. 9, 10, 16 (not shown) show two such pairs, relatively displaced by 30 degrees; and Fig. 15 (not shown) shows three such pairs relatively displaced by 10 to 15 degrees. Typically the arrays are plastics and the transparency support is glass and is laminated thereto (see Division B5).
Patent GB-860105-A (GB)
Title: Method and means for the transfer of heat in refrigerating systems
IPC: F24F5/00
Filed: 1959-10-14
Abstract: 860,105. Refrigerating. CELLECO A. B. Oct. 14, 1959 [Oct. 24, 1958], No. 34745/59. Class 29 The evaporator coil 5 and/or the condenser coil 3 of a compression system is disposed in a fluidized bed 16 of granular material, the fluidizing gas of which is the air being cooled by the evaporator and/or the air cooling the condenser.
Patent GB-1361854-A (GB)
Title: Engine exhaust systems for vehicles
IPC: F01N3/22
Filed: 1971-07-23
Abstract: 1361854 Treating exhaust gases ZENITH CARBURETTA CO Ltd 14 July 1972 [23 July 1971 3 Dec 1971] 34761/71 and 56182/71 Heading F1B In an I. C. engine exhaust system, exhaust gases and air are fed to a reactor 39 for combustion, the air supply rate depending upon the rotational speed of the engine and the load upon it. The air is supplied to the reactor by an engine driven pump 40 through a valve member 41 having an inlet port 43, a main outlet port 44 and a secondary outlet port 45. The secondary outlet port is at the end of a shunt conduit 46 containing of flow restricting device 47. A main conduit 49 extends between the inlet port 43 and the main outlet port 45. A valve member 52, controlled by a spring-loaded diaphragm 54 in response to the suction in the engine inlet 36, determines whether the flow passes through the main conduit 49 or shunt conduit 46. The arrangement is such that at low loads and high suction the flow is through the shunt conduit and at high loads through the main conduit. The mass flow of air supplied to the reactor is therefore less at low loads than high loads.
Patent GB-429287-A (GB)
Title: Improvements relating to milk saucepans
IPC: A47J27/60
Filed: 1935-01-14
Abstract: 429,287. Milk saucepans. BEASLEY, V. M., 9, Park Road, Walmer, Kent. Jan. 14, 1935, No. 34899/33. [Class 66] To prevent boiling over, a milk saucepar is provided with a device A of inverted funnel shape, open at both ends, removably attached to the pan by means of oppositelydisposed lugs D adapted to engage beneath clips C provided on the bottom of the pan.
Patent GB-521985-A (GB)
Title: Improvements in or relating to electric supervisory signalling and controlling systems for conveyor installations
IPC: B65G60/00
Filed: 1938-11-30
Abstract: 521,985. Conveyers. PATENTVERWERTUNGS-GES. HERMES. Nov. 30, 1.938, No. 34916. Convention date, Oct. 18. [Class 78 (i)] ' In a conveyer system in which a composite conveyer path can be formed by selection from a number of separate electrically driven conveyer units feeding one to the other in succession and in which selector switches are provided in the control circuit of the motors of the individual units whereby any re-arrangement of the conveyer path can be effected and the group of motors of the selected units set in operation by an actuating switch, the selector switches and the actuating switches have additional contacts for operating order-transmitting and acknowledging arrangements. Fig. 2 represents a miniature switchboard diagram of a conveyer system in which an elevator E3 is fed by either of the conveyers F4, F5 and delivers to either of the conveyers F1, F2. Luminous symbols F1, F2, F4 and F5 show the operating conditions of the conveyers, and a similar symbol E3 shows the state of the elevator. Selector switches W1, W2, at the ends of the conveyers are connected with indicators which show the directions in which the conveyers will move when set into operation by actuating switches B1, B2. When the switches W1, W2 are adjusted for a path comprising the conveyer F5, elevator E3 and conveyer F1, and the actuating switch B1 is moved into the preparatory position in which the contacts E, Fig. 4, are closed, current passes from a positive busbar and intermittent current from a positive flashing busbar B1 to an acknowledging switch Q1 disposed in the supervisory circuit diagram in the upper operating station, Fig. 1. When this switch is open, contact A, Fig. 4, is closed so that the lamps F<SP>1</SP>1 flash in the upper operating station and at the supervisory station, and at the same time an audible signal is given. Simultaneously, a signal is transmitted through contacts 1 of selector switch Wl and contacts A of acknowledging switches Q3 and Q<SP>1</SP>3 at the upper and lower operating stations to the indicators E<SP>1</SP> 3  and E<SP>11</SP> 3 . These signals cause flashing of the indicators E<SP>1</SP> 3  and E<SP>11</SP> 3  in the supervisory station. Intermittent current through a contact A of the acknowledging switch Q5 and a contact 5 of the switch W2 lights up an indicator F<SP>1</SP>5. If the attendants at the operating stations agree with the proposed actuation, they turn the acknowledging switches to the positions in which contacts E are closed, and so signal their consent to the main order-transmitting station. These signals are given by a steady light. The attendant then turns the switch B1 into the order position EK, and the conveyers &c. start in the desired direction. At the same time, the associated large arrows light up to indicate what operation is proceeding. Specification 447,367 is referred to.
Patent GB-799066-A (GB)
Title: Process for the manufacture of isoxazolidone compounds
IPC: C07D261/04
Filed: 1956-11-16
Abstract: The invention comprises DL-threo-5-methyl-4 - aminoisoxazolidone - (3) and also a process for the preparation of 4-aminoisoxazolidone-(3) and its 5-alkyl derivatives by condensing a b -substituted a -aminopropionic acid of the general formula: <FORM:0799066/IV (b)/1> wherein R is a hydrogen atom or an alkyl group and A is the anion of an hydrohalic acid or a strong organic acid, with phosgene, preferably in an organic solvent, treating the resulting cyclic anhydride with hydroxylamine or a salt thereof to form a b -substituted a -aminopropiohydroxamic acid and cyclizing the latter in the presence of a basic agent.  The reaction with hydroxylamine is preferably carried out using 2 to 4 mols. of hydroxylamine for each mol. of cyclic anhydride, at least one of the reaction components being in solution in a solvent such as water, methanol, ethanol, propanol, ether, dioxane and tetrahydrofurane. The final cyclization reaction is preferably carried out at a temperature not exceeding 70 DEG  C. in the presence of a basic agent which may suitably be an alkali-metal alkoxide, an organic base or a basic ion-exchange resin.  In examples: (1) a -amino-b -chloropropionic acid is treated with phosgene to give a cyclic anhydride, this product is treated with hydroxylamine in ethanol to form a -amino-b -chloro propiohydroxamic acid and this is treated with aqueous lithium hydroxide to give 4 - amino - isoxazolidone - (3), which is isolated by freeze-drying, extracting with ethanol and recrystallization; (2) a -amino-b -chloropropiohydroxamic acid, made as in (1), is treated with sodium ethoxide in ethanol to give 4-aminoisoxazolidone; (3), (4) and (5) a -amino-b -chloropropiohydroxamic acid, made as in (1), is converted to 4-aminoisoxazolidone by treatment with triethylamine; and (6) DL-allo-a -amino - b  - chloro - butyric acid is treated with phosgene to give the cyclic anhydride DL-allo-4 - (a  - chloroethyl) - 2 : 5 - dioxo - oxazolidine, this is treated with hydroxylamine to give DL-allo - a  - amino - b  - chlorobutyrohydroxamic acid and this product is cyclized in the presence of triethylamine to DL-threo 5-methyl-4-amino-isoxazolidone-(3).
Patent GB-896607-A (GB)
Title: Transducer
IPC: G01L1/22
Filed: 1960-10-14
Abstract: 896,607. Electric resistance strain gauges. STATHAM INSTRUMENTS Inc. Oct. 14, 1960 [Feb. 5, 1960], No. 35244/60. Class 40 (1). A pressure transducer incorporates a number of resistance strain gauge wires attached to an armature carried by a diaphragm, and inter-connected in bridge form, giving differential resistance variation with change in pressure. As shown (Figs. 1, 3), the strain gauge wires 60, 62, 64, 66 and 60<SP>1</SP> ,  62<SP>1</SP> ,  64<SP>1</SP> ,  66<SP>1</SP> are mounted between pins 50, 51. 57, 59, &c. on a central block 34, clamped between end-plates 14, 44. The upper plate 14 supports a diaphragm 28 which carries centrally a post 30 protruding down through a hole in plate 14 into a cut-out in the block 34, and the strain gauge wires pass over pins 48, 481 in the post 30. The wires are tensioned by springs 56, 58, 56<SP>1</SP>, 58<SP>1</SP>, which also enable leads 68 &c. to be taken from the resistance network (Fig. 7) to a socket 46 for external connection. The assembly is housed in a cylindrical case 10 with fluid pressure inlets 24, 82 to either side of the diaphragm. Plates 38 act as shields to the strain gauge wires. In a modification, the diaphragm 28 is dispensed with and a rod connected to the post 30, whereby the transducer measures the displacement of the rod, which may be due to a weight to be measured. Such an arrangement can also be used as an accelerometer. Specification 828,820 is referred to.
Patent GB-1083069-A (GB)
Title: Improvements in and relating to mills for the comminution of raw materials
IPC: B02C23/32
Filed: 1966-08-05
Abstract: 1,083,069. Beater mills. R. F. BOURNE and D. G. CHEYNE. Aug. 5, 1966 [Aug. 9, 1965], No. 35272/66. Heading B2A. A mill comprises a casing 5 defining a chamber 6 having an inlet port 11 for material to be treated and having located therein rotors 7, 8 mounted on separate drive shafts 9, 10, the rotor 7 having fast therewith beater blades 13 and attrition blades 14 and the rotor 8, which functions as a classifier, comprising vanes 15 mounted between shrouds 16, 17, the chamber 6 being followed by a whirl chamber 13 through which fines are drawn by suction means associated with the delivery line (24, Fig. 2). The classifier acts with radially inward movement of the fines the quality of which can be varied by varying the speeds of the rotors. A baffle 26 is secured to the wall 27 of the chamber 6. Preferably, the circumferential area between adjacent vanes is constant at all radial dimensions and this is achieved by having the shrouds 16, 17 converging inwardly. The vanes 15 may be forwardly or rearwardly rotated.
Patent GB-304448-A (GB)
Title: Improvements in or relating to electric switches
IPC: G01R15/00
Filed: 1927-12-30
Abstract: 304,448. General Electric Co., Ltd., Turner, H. C., and Sherwin, A. Dec. 30, 1927. Electromagnetic current meters. - Relates to switches of the kind comprising cams adapted to co-operate with contacts and thereby to make and break connection through the said cams between various contacts for changing the scales of instruments such as milliammeters or millivoltmeters. The cams which are arranged two or more at a time to engage contacts in order to connect them and which are effective in carrying common current, are formed from a single piece of conducting material in order to avoid joints in the conducting paths. The cams 19 - - 22 are in one piece with a shaft 1 carried in a frame 2, 3 the parts of which are secured by screws 4. The shaft 1 further carries a disc 11 formed with notches 12 - - 15 which engage a spring-pressed ball 16 and so determine the operative position of the switch. The four fixed contacts are formed each of a U-spring, one limb 38 of which carries a contact, whereas the other carries a terminal 43 and is secured under a plate which has a hooked end 44 serving to strain the limb 38 when not engaged by the cam contact. Fig. 4 shows the relation between the cams. Cam. 19 is circular and engages its contact in all positions of the disc 11; cam 20 is part-circular engaging only when notch 14 is engaged: cam 21 is also part circular engaging when both notches 14, 15 are engaged; cam 22 engages its fixed contact when notch 13 is engaged. In Fig. 7 is shown the application of such a switch to a three-range combined D.C. voltmeter and ammeter of the permanent magnet, moving coil type, the coil being shown at 45. The high and middle ranges for current are got by using terminals 51, 53 and moving the switch to its first and second positions, respectively, with the notches 12, 13 facing the fixed contacts. The high and middle voltage ranges are got by using terminals 52, 53 and moving the switch to its third and fourth positions, respectively, with the notches 14, 15 facing the fixed contacts. With the same positions of the switch, the low voltage and current ranges are got using terminals 53, 54, a projective fuse 67 being inserted. In a modification, a switch with five contact cams, together with its application to a similar measuring instrument, is described. The switch may be mounted in an insulating case and the shaft 1 provided with a knob and pointer.
Patent GB-1111872-A (GB)
Title: Improvements in or relating to atomiser discs
Inventor: SWEETEN JOHN LANGHORNE
IPC: B05B3/10
Filed: 1964-08-29
Abstract: 1,111,872. Spray-producers. STEELS PROCESS PLANTS Ltd. 9 Aug., 1965 [29 Aug., 1964], No. 35477/64. Heading B2F. An atomizer adapted to spray a suspension of a solid in a liquid comprises a rotary member 12 provided with a plurality of peripheral openings 18 in which nozzles (17), fig. 1 (not shown) are fitted, and pairs of flat asymmetrical surfaces 25, 26 formed by the adjacent sides of baffle members 20 and designed to guide the suspension, without separation of the solid phase, to the openings 18. Each member 20 may be formed of polytetrafluoroethylene or nylon. Each surface 25 is generally radial with respect to the axis of the member 12 and each surface 26 is inclined with respect to the adjacent surface 25 so that each pair of cooperating surfaces forms a cavity which tapers towards its respective opening 18.
Patent GB-1481427-A (GB)
Title: Measuring chamber arrangement for intravenous set
IPC: A61M5/168
Filed: 1974-08-12
Abstract: 1481427 Measuring chambers for intravenous set UNITED STATES SURGICAL CORP 12 Aug 1974 [21 Aug 1973] 35492/74 Heading A5R A flexible and transparent polyvinyl chloride measuring chamber 20 for use in an intravenous set comprises a flexible polyvinyl chloride inlet tube 16 for the parenteral fluid, a connecting member 24 of a rigid plastics material e.g. styrene-acrylonitrile for providing a fluid passageway 58 between the chamber and a double flow meter 22, and a passageway 62 for a medicament to be mixed with the parenteral. fluid in the chamber, the lower end of the passageway 62 being closed by a rubber cap 66. The lower end of the passageway 58 is sized so that drops of a predetermined size are formed in the drip chamber 60 of the double flowmeter. In another embodiment (Fig. 3 not shown) the chamber, made of a rigid plastics material, is cylindrical and is provided with upper and lower end caps, the upper end cap being connected to the flexible inlet tube 16 and provided with an air outlet tube 102 having an air-permeable membrane 103. The connecting member having a liquid-permeable filter downstream of the measuring chamber is  attached to the lower end cap. An intravenous set comprises the measuring chamber arranged downstream of a pierrer (12) connected to a parenteral fluid supply bottle and upstream of the double flow meter 22, the connecting member 24, compression clamps, and an intravenous needle adapted.
Patent GB-817511-A (GB)
Title: Improvements relating to aircraft
Inventor: WAKEFORD DOUGLAS
IPC: B64C1/32
Filed: 1954-12-08
Abstract: 817,511. Jettisonable cockpit covers. FAIREY AVIATION CO. Ltd. March. 8, 1956 [Dec. 8, 1954], No. 35588/54. Class 4. [Also in Group XXV] In an aircraft fitted with a jettisonable cockpit cover 11, a door 17 is provided in the cover 11 to enable the pilot to enter and leave the aircraft without disturbing the hood jettisoning mechanism. The cover 11 is secured at its rear edge to the fuselage by a hinge 14 which automatically becomes released when the cover swings aft and it is releasably secured towards its forward end by catches 15 which hold the cover against the action of ejecting plungers 16. The door 17 is pivotally mounted along one side edge to the cover 11 and it is secured along its opposite edge by catches 29 (see Group XXV) which may be released both from the inside and the outside of the cockpit by means of a removable key or, on the inside, by a rotatable handle. The Provisional Specification states that a key may be used to release the door from the inside.
Patent GB-394362-A (GB)
Title: Improvements in and relating to electric distribution systems employing mercury arc rectifiers
IPC: H02M7/06
Filed: 1931-12-23
Abstract: 394,362. Rectifying alternating currents; systems for transmitting mechanical power. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITAKER, F. P., 237, Clifton Road, Rugby. Dec. 23, 1931, No. 35597. [Classes 38 (ii) and 38 (iv).] Automatic regulation.-In a distribution system, utilizing mercury-arc rectifiers, in which regeneration may occur, a differential relay 4 responding to the ratio of the supply and load voltages causes the progressive insertion of resistances 8 across the load busbars during such periods. The relay may operate through a reversible motor 9 operating cams 10 which cause energization of contactors 11 effecting the insertion of the resistances 8.
Patent GB-1389628-A (GB)
Title: Equipment to be inserted into a fluid conduit more specifically a compressed air pipe
IPC: F16L41/02
Filed: 1973-07-27
Abstract: 1389628 Pipe couplings TEKNOVA AS 27 July 1973 [8 Aug 1972] 35795/73 Heading F2G Units used in a compressed air line, such as filter 1, regulator 2 and lubricator device 3, are assembled face to face (with the interposition of coupling sleeves (15) and sealing rings (14)) by passing bolts 10 through holes 11 and screwing them into blind threaded holes 12. Additional blind threaded holes 12<SP>1</SP> enable the units to be assembled in a different order.