baber/WOPTO huggingface dataset:
Patent GB-1451657-A (GB)
Title: Self-closing closures
IPC: B65D47/20
Filed: 1973-12-12
Abstract: 1451657 Self-closing closure N B NILSON 12 Dec 1973 [15 Dec 1972] 57483/73 Heading B8T A self-closing closure for use with a flexible container 1 and which automatically opens upon squeezing the container, incorporates a passage 25 controlled by a valve 23, 24 which opens when the pressure in the container 1 is less than the ambient pressure to allow air to pass into the container. The closure comprises two members 4, 14 the first engaging the neck of the container 1 and the second engaging an attachment part 9 of the first member. The second member 14 has a diaphragm 17 which is slightly concave and is connected to an axially directed sleeve-shaped member 18 which terminates in a funnel-shaped end portion 19 the opening of which is approximately the same size as the free end 12 of a stem 11 projecting centrally upwardly from member 4. A transportation seal comprises a tongue 20 which fits over the end of stem 11 and is removed before operation. When the container 1 is squeezed the diaphragm 17 and hence sleeve 18 move outwardly removing said sleeve from the stem 11 and causing some of the contents of the container 1 to move past ribs 10 and out of the sleeve 18. A valve part 24 engages with the base of the stem 11 preventing material from passing therethrough, until squeezing ceases when diaphragm 17 returns to its original position.
Patent GB-1154956-A (GB)
Title: Improvements in or relating to Cartridge Cases for Propellent Cartridges
IPC: F42B5/307
Filed: 1966-12-22
Abstract: 1,154,956. Cartridge cases. DYNAMIT NOBEL A.G. 22 Dec., 1966 [22 Dec., 1965], No. 57578/66. Heading F3A. Propellent cartridge case for use in industrial appliances comprises a jacket 6 of thermoplastics material, e.g., P.V.C. or polyethylene force fitted into an annular groove 2 in a base 1 of thermoplastics material ormetal, e.g. aluminium. The wall thickness of the jacket is at least 2% greater than the width of the groove before being fitted therein, and the internal diameter of the jacket may be at least 2% greater than the internal diameter of the groove. A tapered extension 3 facilitates fitting of the jacket into the groove. The jacket is additionally secured in the groove by equally spaced portions or a continuous portion of the base (not shown) deformed inwardly so as to grip or be embedded in the jacket.
Patent GB-1183620-A (GB)
Title: Improvements in or relating to Cationic Dyestuffs
IPC: C09B44/04
Filed: 1967-12-19
Abstract: 1,183,620. Dyestuff intermediates. HODOGAYA KAGAKU KOGYO K.K. 19 Dec., 1967 [19 Dec., 1966], No. 57702/67. Heading C2C. [Also in Division C4] In Example 1, N - ethyl - N - # (2<SP>1</SP> - methylimidazolyl-1<SP>1</SP>)-ethyl aniline b.p. 186-188 C. at 4 mm. Hg is prepared by reacting N-ethyl-N- #-chloroethylaniline with 2-methylimidazole in 10% sodium hydroxide solution at 105- 106 C. The product is converted to the quaternary methosulphate by reacting with methyl sulphate in chlorobenzene at 95-100 C. In Example 18, the m-methyl derivatives of the above compounds are prepared.
Patent GB-1339439-A (GB)
Title: Electrodynamic oscillator
IPC: G04C3/00
Filed: 1970-12-07
Abstract: 1339439 Electronically maintained balance members in clocks S L KROEWERATH 7 Dec 1970 [9 Dec 1969] 57964/70 Heading G3T An electro-mechanical oscillator e.g. for a clock, comprises an oscillatory mass (balance member) formed by discs carrying permanent magnets the distance between the magnetic axes of the two magnets, along their arcuate path of movement with respect to a coil unit, being substantially equal to the diameter of the coil unit and the diameter of each magnet being less than the winding height of the coil unit. Oscillation of the oscillator is maintained by a transistor circuit powered by a battery. In an embodiment Figs.2a, 2b two discs 27, 28 of soft magnetic material each carry a respective pair of permanent magnets 29a, 29b and 30a, 30b also counterweights 33, 34 to eliminate unbalance. The discs are fixed to a spindle 25 and the magnets co-operate with a coil unit 35 on a stationary support 37, 38, 43. The spindle carries a pawl wheel 52 which transmits the arcuate oscillation of the discs to a gear wheel 53 of a gear train (not shown) coupled to time indicating hands. A spiral restoring spring 54 is provided. In a further embodiment Fig.2d (not shown) the magnets (75) (76) are carried on a support member (73) instead of on the discs. The support member is fixed to the spindle midway between the two discs also there are two coil windings (77) (78) one disposed between the upper disc and magnet support member and the other between the lower disc and the support member. In a drive circuit for the electro-mechanical oscillator, the base of a control transistor 120 is connected to a voltage divider R114, C115, R116 and when it receives a negative pulse therefrom the collector of a drive transistor 108 is caused to go more negative resulting in an increase in current through coil winding 104. Positive pulses on the base of 120 cause a reduction in coil current. Changes in Tr108 collector voltage due to induced voltage in the coil winding during movement of the magnets, are delayed by the time constant of the voltage divider R114 C115 R116. The waveforms of the induced voltage pulses and drive pulses become narrower or shorter with increasing amplitude of oscillation, (angular displacement of mass) thus automatically providing a natural amplitude limitation. To provide temperature compensation R124 may be an NTC resistor. Alternatively the oscillatory member may be a pendulum (not illustrated).
Patent GB-1249835-A (GB)
Title: Method and apparatus for stretching film of thermoplastic synthetic plastics material
IPC: B29C48/10
Filed: 1969-11-28
Abstract: 1,249,835. Mandrel for film-stretching; niprollers. MITSUBISHI PETROCHEMICAL CO. Ltd. 28 Nov., 1969 [30 Nov., 1968; 22 Oct., 1969], No. 58419/69. Heading B5B. A tubular film of thermoplastic material, e.g. polypropylene, is stretched by passing it over a generally conical mandrel having a regular polygonal cross-section, followed by inflation to effect further stretching. The mandrel may comprise a plurality of equally spaced rods O 1 , O 2  ... diverging from a central support pipe 14 and carrying rollers γ 1 , γ 2  ... over which the film passes. As shown, supports q 1 , q 2  ... are pivotally connected to rods O 1 , O 2  ... and to a central pipe 25 at points P 1 , P 2 .... Rods O 1 , O 2  ... are pivotally connected to 14 at points n 1 , n 2 .... Pipe 25, which carries compressed air for film inflation, is slidable inside pipe 14 whereby the angle of divergence of the mandrel may be adjusted. Stretching is effected so as to produce " necking initiation points " (i.e. boundaries between drawn and undrawn portions) shown as at s, and these are stretched by inflation. Nip rollers for preventing the escape of inflation air in the above process possess a semicircular groove 22, 23 which allows passage of pipe 14 therebetween. Alternatively the grooves may co-operate with barrel-rollers (3<SP>1</SP>, Fig. 2) mounted on a support (4a) attached to the pipe, and in this case the rollers are for supporting the film.
Patent GB-1460300-A (GB)
Title: Explosive welding of cylinderical metallic members such as pipes
IPC: F16L13/00
Filed: 1973-12-18
Abstract: 1460300 Welding by pressure EXXON RESEARCH & ENG CO 18 Dec 1973 [12 March 1973 20 Sept 1973] 58524/73 Heading B3R An assembly for use in explosively welding abutting cylindrical metal members 11, 12 comprises a metal sleeve 13 for surrounding the members 11, 12 an annular explosive charge 14 of a first high explosive arranged on the sleeve circumferentially and having a greater thickness in or adjacent to its central diametrical plane than at its ends, an annular initiating body of a second high explosive 16 of higher detonation velocity than the first high explosive in contact with the charge 14 and at least two equidistantly spaced detonators 17 in contact with the initiating explosive. Upon detonation wedge or arrow shaped wave fronts travel circumferentially around the collar and impact half way between the initiating point. The initiating explosive 16 is in an embodiment provided in a notch 15 in the charge 14 and the detonators are arranged 180 degrees apart on the explosive 16. In modifications the charge is formed from layers of explosive and the initiating explosive is a strip on the charge, the charge may be cast into a body having a stepped cross-section and the notch in a charge similar to that shown in Figs. 1 and 3 receiving the initiating explosive extends to the surface of the collar. The exposive charge and initiating explosive may contain PETN; TNT; RDX; TNT and PETN in admixture, ammonium nitrate and TNT in admixture and have detonating velocities within the range 15,000-30,000 feet per sec., preferably 22,000-30,000 feet per sec. for the initiating explosive and 15,000-23,000 feet per sec. for the charge. The sleeve 13 is tapered at both ends being thickest in its central diametrical plane. In operation the two detonators are simultaneously fired and the wedge shaped detonation wave fronts travel around the sleeve 13 to impact the sleeve against the members 11, 12. The ends of the members may be buffed clean and butt squarely or tapers may be provided on the outer end surfaces of the members, a mandrel being expanded within the members.
Patent GB-1421749-A (GB)
Title: Component insertion apparatus
IPC: A47G27/04
Filed: 1972-12-21
Abstract: 1421749 Clamps ROBERTS CONSOLIDATED INDUSTRIES INC 21 Dec 1972 58986/72 Heading E2B [Also in Division A4] The pole of a carpet stretcher includes at least one assembly comprising outer and inner telescoping tubular members 10, 12, an elongate locking member 26 secured at one end in a block 22 fixed in tube 10 with its other end projecting into tube 12 and secured in a bearing sleeve 28 that slides in tube 12, a locking collar 32 surrounding member 26 and loosely mounted to tube 12 by a pin 36 so as to be tiltable between a first locking position in engagement with member 26 to prevent retraction of the tubes and a second position releasing said collar 32 from said member 26 and permitting relative movement between the tubes, the collar 32 being urged into looking engagement with member 26 by a spring 42 seated in a collar 30 secured to tube 12, and a manually operable release collar 20 that can be slid to release the collar 32 against the spring 42 through a rod 48. Member 26 is mounted in block 22 and sleeve 28 with limited radial movement to allow alignment. Sleeve 28 and collar 32 abut to limit extension. In a first modification (Fig. 5, not shown), the locking collar (66) is released by a pivoted lever 76 via a tube (60). In a second modification (Fig. 7, not shown), the locking collar may be replaced by a stack of sheets (120). Tubes 10 and 12 include apertures 14 and spring biased buttons 18 for attachment to a tube (35, Fig. 2, not shown) that connects to wall plate (41), and a tube (15) of the stretcher head that includes a pivoted lever (19) with a lever (23) that has a linking cable (25) to release a pawl and rack to allow extension of a shaft (13) from tube (15). In a further modification (Fig. 8, not shown) the cable (25) can also release the locking collar via a link (110) and a cam lever (106).
Patent GB-1379399-A (GB)
Title: Unit for moving an article and apparatus having a plurality of such units
IPC: B25J9/10
Filed: 1971-12-22
Abstract: 1379399 Article-moving apparatus ELECTROLUX AB 22 Dec 1971 [12 Feb 1971] 59544/71 Heading B8H A device for use in providing vertical movement of an object comprises a fixed outer tube 37 in which is mounted a tube 38 for movement relative thereto by means of a pneumatic ram 40 whose piston-rod 41 is connected to the tube 38, there being a cylinder 39 mounted on the tube 38 which co-operates with the device of Fig. 4 (not shown) on which the object may be mounted for movement. The device further comprises means by which the positions of the movable tube 38 may be sensed and adjusted, the said means comprising a body member 46 fixedly mounted on the tube 38 and protruding through a slot in the outer tube 37, the member 46 having magnets 55 mounted thereon which, when the tube 38 is moving in either direction relative to the tube 37, actuates a given reed switch 52, there being such a switch located in each of a plurality of stops 51 (two of which are shown) which are adjustably mounted in a groove 48 in a rail 47 which is movably mounted on the tube 37, the actuation of the said switch 52 causing a control device (not shown) to cause a catch element 53 housed in the member 46 to move to a position in which it protrudes from the member 46, such that the element 53 will abut against a stop 51 mounted on the rail 47 which then moves a short distance against the action of progressively operable dampers (not shown), thus causing the inner tube 38 to smoothly stop and assume a predetermined position. The above-said control device may be an electric sequence control device, and the device is programmed to select a given stop 51 on each occasion. As stated above the cylinder 39 co-operates with the device of Fig. 4 (not shown) by being fitted into a socket (33) therein, the said device, which produces rotational movement of an article located thereon, comprising inner and outer tubes (29, 31), the tube (29) being rotatable about its axis under the action of a motor (34), and a plate (28) which is fixed to the tube (29) and on which is mounted a further device which is shown in Fig. 2 (not shown), which further device which produces linear horizontal movement of an article mounted thereon comprises a telescopic arm, one section (10) of which carries a gripper at its end (23). The second section (11) of the telescopic arm has stops (17) located thereon which, when the section (11) moves to an end position relative to the fixed arm section (12), engage with progressively operable dampers (19) which are cylinders provided with pressure rods (20). The combination of the units described above may be mounted on a wheeled wagon unit (58), Fig. 5 (not shown).
Patent GB-1410675-A (GB)
Title: Dc voltage control circuits
IPC: H02M3/145
Filed: 1972-12-27
Abstract: 1410675 Automatic voltage control SIEMENS AG 27 Dec 1972 [27 March 1972]  59664/72 Heading G3R A regulated D.C. chopper arrangement includes a series transistor switched through a transformer by a pulse generator. The duration of the pulses is determined by the output voltage of the circuit which controls the timing of the trailing edge of each pulse. At a predetermined limit, the transistor is blocked. As shown, a load RL is supplied from A.C. terminals P1, P2 over a rectifier G, series transistor T1 and choke Dr1. A control circuit Sp1 is also powered from the A.C. terminals P1, P2 and receives an output voltage signal on terminals d, e. Pulses for switching transistor T1 are supplied from terminals f, g by way of an isolating transformer Tr1. The circuit Spl includes an integrated amplifier which produces constant frequency pulses, the leading edges of which cause transistor T1 to block. The timing of the trailing edge of the pulse, which turns the transistor on, is determined by comparison of the sensed output voltage produced by the choke Dr1 with a reference voltage generated in the control circuit Spl. The pulse is delivered by a controlled transistor in an integrated circuit amplifier, Fig. 5 (not shown), the transistor being effectively connected in series with the primary winding of transformer Tr1. The emitter voltage of transistor Tl is sensed by a resistor R1 and may prevent overload by blocking the pulse-delivering transistor. This function may also be carried out by a second transformer connected to the emitter of transistor Tl, Fig. 3 (not shown).
Patent GB-1438130-A (GB)
IPC: C07C67/00
Filed: 1973-12-27
Abstract: 1438130 Prostanoic acid derivatives ROUSSEL UCLAF 27 Dec 1973 [27 Dec 1972] 59819/73 Heading C2C Novel compounds I in which R is H or C 1-4  alkyl, m is 3, 4 or 5, n is 2, 3 or 4, R<SP>1</SP> is a saturated or unsaturated, acyclic C 1-4  hydrocarbon radical or a C 3-6  cycloalkyl or C 3-6  cycloalkenyl radical, A is C 1-4  alkoxy or keto, and both of the symbols = in the 5- membered ring represent single bonds when A is keto or one of the symbols represents a single bond and the other symbol represents a double bond when A is C 1-4  alkoxy, and base salts of those compounds I in which R is H, are prepared by treating a compound II in which each of alc and alc 1  is C 1-4  alkyl, with an acid to obtain a compound III which is treated with a C 1-4  diazoalkane to obtain a compound IV in which A is C 1-4  alkoxy, which is saponified with an alkaline base to obtain, after acidification, a compound V which is heated to effect decarboxylation and, if desired, treated with a C 1-4  diazoalkane to obtain a mixture of compounds VI and VI<SP>1</SP> if desired, separating the constituents compounds of the mixture, treating the mixture or a constituent compound thereof with an oxidizing agent to obtain a mixture of compounds VII and VII<SP>1</SP> or a constituent compound thereof, if desired, separating the constituent compounds of the mixture, treating the mixture or a constituent compound thereof with a compound of Formula R<SP>1</SP>MgX in which X is halogen, to obtain a mixture of compounds IX and IX<SP>1</SP> or a constituent compound thereof, if desired, separating the constituent compounds thereof and, if desired, reacting the mixture or a constituent compound thereof with an acid to obtain a mixture of compounds X and X<SP>1</SP> or a constituent compound thereof, the said mixture being separated, if desired, into its constituents, and, if desired, converting a resulting compound I in which R is H into a base salt thereof. Pharmaceutical compositions having hypotensive, antibionchoconstrictive and a contracting effect on the smooth muscle, for oral, parenteral, rectal or topical administration, comprise a compound of the invention together with a pharmaceutical carrier.
Patent GB-1332147-A (GB)
Title: Pneumatic tyres
IPC: B60C9/14
Filed: 1970-12-23
Abstract: 1332147 Radial cord tyres MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 23 Dec 1970 [23 Dec 1969] 61203/70 Heading B7C A radial ply carcass pneumatic tyre comprises at least one ply of cords 14 which, between the tread and mid-height of the side walls, are surrounded by an elastomer 33 of different mechanical quality from that of elastomer 32 projecting between the so-surrounded cords 14, and, between the tread and the mid-height of the side walls, are both surrounded and separated by an elastomer 33 of the same mechanical quality. The cords are surrounded by an elastomer of high modulus of elasticity and are separated by an elastomer of relatively low modulus of elasticity in the region between the tread and the mid-height of the side wall, and an elastomer of relatively low modulus of elasticity surrounds and separates the cords between the tread and the mid-height of the side wall. Cords of adjacent plies are calendered in elastomers of different moduli of elasticity, and are manufactured from materials such as polyamide which contract when heated during moulding of the tyre. Tyres of the above type may be manufactured by disposing radially inside a ply of cords 14 calendered in an elastomer of a given quality, a ply of elastomer 32 of a different quality and, during vulcanization, to tension the cords 14.
Patent GB-1223347-A (GB)
Title: Gate valve assembly
Inventor: WORLEY ARTHUR CHRISTIAN
IPC: F16K3/18
Filed: 1968-12-30
Abstract: 1,223,347. Valves. ESSO RESEARCH & ENG. CO. 30 Dec., 1968, No. 61685/68. Heading F2V. A gate valve has a pair of spaced discs 9 moved apart by fluid pressure to engage spaced slots 8. The discs are interconnected by annular rings 14, 17 and bellows 16 and are guided by bars 18 secured to ring 17 and telescoping cylinders 21, 22 secured to the discs and provided with a pin and slot movement-limiting interconnection. Fluid pressure introduced at 6 may be partially vented through pipe 7 to cool the discs. The discs are moved laterally into bonnet 3 by a chain pull, or hydraulic actuator and are guided in such movement by guides 13.
Patent GB-1291190-A (GB)
Title: Processes for the preparation of ultra-fine polytetrafluoroethylene molding powder and powder made by such processes
Inventor: KOMETANI YUTAKA
IPC: B02C19/06
Filed: 1970-12-30
Abstract: 1291190 PTFE moulding powder DAIKIN KOGYO CO Ltd 30 Dec 1970 61791/70 Heading C3P P.T.F.E. moulding powder having a specific surface area of 4-9 m.<SP>2</SP>/g., a low pressure moulding coefficient of not more than 20, and a degree of surface smoothness higher than 15 seconds is obtained by milling a P.T.F.E. moulding powder having a specific surface area of 2-4 m.<SP>2</SP>/g. and a low pressure moulding coefficient of 2-150 by interparticle collision at a temperature below 100 C. in a gas stream of more than 2À5 Mach. In the apparatus shown, powder from hopper 1 is entrained by gas leaving nozzle 2 at above 2À5 Mach and sent to milling chamber 3. It passes through passages 4 into milling chamber 5 from where it is partially recycled through outlets 6 and inlets 7 by means of a gas stream from conduit 9. The particles are separated from the gas in cyclone 11.
Patent GB-618186-A (GB)
Abstract: 618,186. Gravity-separation apparatus. HARTLEY. C. J. Oct. 31. 1946, No. 32329. [Class III] In apparatus for the separation of grit and the like from liquids, having a number of circular concentric grit-settlement channels, the liquor which is delivered from the centre into the innermost channel being caused to circulate from one channel to another until it reaches an outlet from the outer-most channel, a rotary structure is arranged at the surface of the channels carrying means depending into the channels for removing the settled matter. In the arrangement shown, two circular concentric grit-settlement channels 10, 11 surrounding a central feed chamber 12, are arranged in a circular caisson 13 with two or more grit-washing chambers 14, which may contain grit-washers 15 as in Specification 544,420, [Group II]. Liquor is fed through the pipe 16, Fig. 2, into the chamber 12, from which it flows through a gate 20 into the first settlement channel 10, where the stream divides into two parts flowing in opposite directions round the two halves of the channel. until they meet at the diametrically opposite gate 21, where the stream flows into the second channel 11 and again divides, the two parts again meeting and flowing out at the gate 22. The inner channel 10 may be by-passed by closing the gate 20 and opening an additional gate 23 on the opposite side of the chamber 12. The settled grit is withdrawn from the channels 10, 11 by pumps or elevators 30, Fig. 2, mounted on the turntable 27 which is driven by a toothed rack 29, the grit being deposited in a surrounding channel 31. The pumps or elevators 30 may be mounted on rails so that if either is out of action the other may be moved along the gantry to draw from either channel. In a modification the liquor is fed to the outer channel and progresses inwards to a central outlet, with provision for shortcircuiting one or more of the outer channels. A different method of short-circuiting one or more channels is to provide alternative outlets from the feed pipe into different channels. The Provisional Specification also refers to the use of dredges for removing the settled matter from the circular channels.