baber/WOPTO huggingface dataset:
Patent GB-925586-A (GB)
Title: Disulphide compounds of octanoic acid derivatives
IPC: A61K31/51
Filed: 1961-08-16
Abstract: The invention comprises compounds having the formulae <FORM:0925586/IV(a)/1> or <FORM:0925586/IV(a)/2> wherein R is a carboxyl radical or a radical capable of producing a carboxyl radical on hydrolysis, R1 is an acyl radical, R11 is a hydrogen atom, an acyl radical or a residue of a phosphorus containing inorganic acid. These compounds may be produced by reacting the thiol form of vitamin B1 with the corresponding acylthiocetenoic acid, preferably in neutral or alkaline solution in water, an aqueous organic solvent, a lower fatty alcohol or a lower fatty ether, at air temperature or with gentle heating.  The product may be isolated by extraction with ether, ethyl acetate, or benzene, and the free base then converted to its non-toxic acid addition salt by means of a hydrohalic acid such as hydrochloric acid or an aliphatic or aromatic sulphonic acid.  In examples the following compounds are obtained:-(a) 1-acetylthio-7- methoxycarbonylheptane- 3-[2-N-(4-amino- 2-methyl - 5-pyrimidinyl)methylformamino- 1-(2-hydroxyethyl propenyl] disulphide; and the corresponding compounds containing the groups (b) 3-acetylthio-7-methoxycarbonylheptane-1- (c) 1-benzoylthio-7-methoxycarbonylheptane-3- (d) 3-benzoylthio-7-methoxycarbonylheptane-1- (e) 1-acetylthio-7-aminocarbonylheptane-1- (f) 1-acetylthio-7-carboxylheptane-3- and (g) 3-acetylthio-7-methoxycarbonylheptane -1-[2-N-(4-amino- 2-methyl- 5-pyrimidinyl) methylformanino-1-(2-acetoxyethyl) propenyl] disulphide. Pharmaceutical compositions containing compounds of formula I and II and a non-toxic pharmaceutically-acceptable carrier may also be made.
Patent GB-171598-A (GB)
Title: Improvements in flexible disc couplings
IPC: F16D3/78
Filed: 1920-10-20
Abstract: 171,598. Hardy & Co., Ltd., E. J., and Grew, W. F. Oct. 20, 1920. Universal joints.-In universal couplings of the flexible fabric or leather disc type, adjacent points of attachment to the shaft spiders are connected together by spring-steel, wire, or other flexible metal strips, in order to relieve the disc of torque loads. The strips E, connecting the bolts &c. 1, 4, 2 - - 6, 1, are preferably arranged alternately on each side of the disc A, which may be provided with reinforcing plates or washers D, as described in Specification 134,458. The strips may lie above or beneath the washers D, or may be integral therewith, and they may be held in place by the tightening of the bolts 1 - - 6, or may be carried on special parts or extensions thereof.
Patent GB-251883-A (GB)
Title: Improvements in belt abrasive machines
IPC: B24B21/00
Filed: 1925-11-25
Abstract: 251,883. Seel, C. Nov. 25, 1925. Band apparatus; block and like apparatus.-In a belt abrasive machine for operating upon work having a moulded section, the belt is pressed upon the work, which is moved across a table beneath the belt, by a moulding block having the same section as the work, the belt being caused, by guiding-means on each side of the moulding- block. first to assume a tubular form and then to assume, immediately in front of and following the block, a form approximating to the section of the work. A reciprocating abrasive device also is provided to operate upon the edges or re-entrant parts of the work. The machine comprises a standard 1 having bearings 8 for a shaft 11 carrying a pulley 10 over which the abrasive belt 40 runs, the shaft 11 being driven by belt gearing 4, 5, 6, 9, 12. The belt 40 runs over pulleys 41, 42 and beneath the moulding block 50 and is caused to assume the tubular shape by tubular guides or rings 38, 39 adjustably mounted, by means of arms 35, 36, on the standard 1. The means for causing the belt to assume a shape approximating to that of the block 50 comprises guides or rollers 52 adjustably mounted by means of arms 53 on the standard 1. The work 21 is mounted on a table 15 pivotally mounted on a slide 17 adjustable vertically on the standard by a screw 16, and segments 19 and bolts 20 allow of angular adjustment of the table to bring the edges of the, abrasive belt to the same elevation. The work is moved over the table by a feed roller 22 driven, through a universal joint, by a shaft 30, which is driven from the main shaft 3 of the machine; a second roller 22 also is provided in the table. The work is pressed on to the feed rollers by rollers 27 carried by adjustable supports 26, and guides 23, adjustable on the table, provide lateral support for the work. The moulding-block 50 is carried by a rod 48, Fig. 3, secured to a cylinder 47 slidable under the pressure of a spring 51 upon a plunger 46 carried by a bracket 45 secured to the standard 1. Edges and re-entrant edges of the work are treated by two abrasivebands 90, 91, Fig. 7, carried by a board 85 adjustably mounted, by a screw 86, upon a holder 84, Fig. 11, which is mounted in a frame 78 and is pressed downwards by springs 79. The frame 78 is carried by a rod 71, which is reciprocated in a casing 62 by a crank pin 69 engaging a block 73 secured to the rod 71 and guided in the casing upon a rod 74. The crank-pin is carried by a disc 67 driven by a shaft 66; the casing 62 is adjustably carried by an arm 64 upon one of the arms 35. Reference has been directed by the Comptroller to Specification 264,625.
Patent GB-1344216-A (GB)
Title: Nuclear failed fuel detection
IPC: G21C17/07
Filed: 1972-06-26
Abstract: 1344216 Monitoring reactors WESTING- HOUSE ELECTRIC CORP 26 June 1972 [12 Aug 1971] 29776/72 Heading G6C In the monitoring of nuclear reactor coolant to determine the presence of fission products indicating failed fuel cladding, respective first and second signals, representative of the coolant radioactivity after first and second delay periods, are derived; the ratio of the second to the first signal is formed; a value of said ratio attributable to coolant radioactivity in the absence of failed fuel cladding is determined: and that value is subtracted from the ratio. In the preferred embodiment the coolant is sampled and monitored by two neutron detectors 14, 16 arranged at suitable positions along the sample conduit 10 to give the desired delays. The delay, t a , to the first detector 14 is such as to allow N<SP>17</SP> activity and the short-lived groups of delayed neutron emitters (with halflives less than 5 sees.) to decay to a negligible level. The delay, t b , to the second detector 16 is such as to result in a significant difference between the signals from these two detectors. Such a use of the two detectors enables discrimination to be effected between those fission products arising from failed fuel cladding and those arising from surface contamination of the fuel elements, the latter being approximately constant. Thus, the value of the aforementioned ratio due to such surface contamination can be established early in reactor operation, in the absence of failed fuel cladding. By subtracting this value from the ratio of the second to first signals during ensuing reactor operation, a resultant signal #R (which is zero in the absence of failed fuel cladding) is obtained and increases with the amount of failed fuel cladding. The processing circuit from each neutron detector includes two activity build-up compensation circuits 36, 38 (Fig. 5) for the longer and shorter lived isotope-components of the activity build-up. A typical build-up compensation circuit using a build-up simulator (30) is described (Fig. 3, not shown). A circuit 40 forms the required ratio from which the resultant signal #R is obtained at a terminal 48. The sampled coolant eventually passes via a flow meter 20, control valve 22 and volume control tank 24 back to the main coolant loop. A gamma detector 18 may also be included in the sample loop, a delay, t@, thereto being sufficient to allow N<SP>16</SP> gamma activity to decay to a negligible level. The presence of such a detector enables one to identify enlargements of existing cladding failures or additional cladding failures since if the delayed neutron signal shows an increase and the gamma signal does not, the total number of failures must be unchanged. In an alternative arrangement, the neutron detectors 14, 16 are replaced by gamma detectors, and the gamma detector 18 by a neutron detector.
Patent GB-322844-A (GB)
Title: Improvements in or relating to trawling gear
IPC: A01K73/045
Filed: 1928-10-16
Abstract: 322,844. Overy, J. Oct. 16, 1928. Trawling-gear. - The wings of a trawl net are spread horizontally by ploughs which are fitted with ribs or flanges to engage the ground. Fig. 4 shows a flat plate 7 with ribs 12 on both sides so as to be effective whichever side is uppermost. Fig. 3 shows a flat plate 7 with offset flanges 9, 10 on both sides of the plate at different edges. Weights 11 are fixed to the plough. The flanges 9 may taper from front to rear. The net is secured to the slot 6<a> at the rear end of the plough.
Patent GB-408705-A (GB)
Title: Improvements in and relating to metal casement windows
IPC: E05F17/00
Filed: 1932-10-26
Abstract: 408,705. Window-operating apparatus; stays. BARRY, T. A., 25, Ennismore Road, and REA METAL CASEMENTS (1932), Ltd., Etna Street, both in Stanley, Liverpool. Oct. 26, 1932, No. 29915. [Class 65 (i).] Two or more horizontallypivoted window sashes 3 are operated by a rod 6 pivoted to each sash and provided with a handle 7. The foot of the rod engages on a curved arm 11, fixed to the frame 1, to hold the windows closed or partly closed. In the form shown, the arm 11 is fixed beneath the curved top member of a hopper 8, this member being slotted to form a guide for the rod 6. A similar rod 6 may be provided at the other side of the window. The rod is held in position on the arm 11 by friction, and the arm may be made resilient in order to increase the frictional effect. The arm may be toothed or serrated for holding the window partly open, the foot of the rod being provided with a spring-controlled or other pawl or a catch actuated by angular or other movement of the handle 7 ; the pawl may be replaced by a spring-pressed ball mounted in the bottom of the rod 6 to engage a series of perforations or recesses in the arm 11. Where no hopper is used, a bracket, Fig. 6, having a slotted upper part 12 and a floor 11<a> replacing the arm 11, is fixed to the frame 1.
Patent GB-911742-A (GB)
Title: Improvements relating to electron microscopes
Inventor: LUCAS GEOFFREY HARVEY
IPC: H01J37/20
Filed: 1959-09-02
Abstract: 911,742. Electron microscopes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 1, 1960 [Sept. 2, 1959], No. 29990/59. Class 39 (1). In an electron microscope the specimen holder 11 is supported by plates 54, 56 which have cylindrical surfaces bearing on like surfaces of a slotted bridge member 6 so that the holder can be rotated about the axis of curvature of the cylindrical surfaces to vary the angle of incidence of the electron beam on the specimen. The plates 54, 56 are moved by a linkage including a Y-shaped link member 16, biased by springs 18, a bell-crank lever 24, a plunger 48 bearing on a hardened steel ball 26 at the end of the lever 24, and a second bellcrank lever (not shown) which is actuated by the plunger 33 to move the plunger 48 downwards against the action of the spring 51. The plunger 33 is moved by the plunger 37 of the micrometer 36. The ring member 4 on the top face of the objective lens may be moved laterally. The line of action of the force applied to the ball 26 lies inside the periphery of the ring member 4 so as not to tilt the ring member and the specimen holder.
Patent GB-967237-A (GB)
Title: Improvements in or relating to pulse generating circuits
Inventor: SLOAN ROBERT COLIN
IPC: H03K3/335
Filed: 1959-09-03
Abstract: 967,237. Transistor pulse generating circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 5, 1960 [Dec. 3, 1959], No. 30026/59. Heading H3T. A pulse generator comprises a transistor of the breakdown type connected to a bi-stable circuit so that in one state of the bistable circuit the transistor is responsive to trigger pulses; the bi-stable circuit being changed by the breakdown of the transistor to a second state in which triggering of the transistor is inhibited. Fig. 2 shows a bi-stable circuit comprising avalanche transistors 9, 10 and conventional transistors 1, 2, 21, 22, feeding capacitive loads such as diode gates via terminals 27, 28. Assuming transistors 1, 22 are conducting then all other transistors will be non-conducting. A negative trigger pulse at terminal 13 causes an avalanche breakdown in transistor 9, thus charging the capacitive load connected to 28 via capacitor 25. The change in emitter voltage of transistor 9 switches the circuit into its other state so that transistor 21 (now conductive) reduces the collector voltage on transistor 9 below that required for breakdown. The next trigger pulse (at terminal 14) restores the state of the circuit by initiating avalanche breakdown in transistor 10. The collector voltage of transistor 9 is now restored to its breakdown value by the recharging of capacitor 25, but breakdown is prevented by reverse bias. The waveforms at terminals 27, 28 are limited in the negative direction by diodes 29, 30 and in the positive direction by inverse operation of transistors 1, 2. Modifications.-Input terminals 13, 14 may be connected together. In Fig. 4, NPN transistors 41, 42 are connected in series with the avalanche transistors 9, 10 to control the breakdown voltage. Capacitors may be connected across resistors 5B, 6B to increase the operating speed.
Patent GB-1359466-A (GB)
Title: Pneumatic tyres
IPC: B60C13/00
Filed: 1970-06-20
Abstract: 1359466 Pneumatic tyres DUNLOP HOLDINGS Ltd 9 June 1971 [20 June 1970] 30032/70 Heading B7C A pneumatic tyre, whose tread has a width greater than the distance between the tyre bead heels when the tyre is mounted on the wheel rim 2 for which it is designed and is inflated, has, on or adjacent a part of its internal surface which contacts a further part of the internal surface when the tyre is deflated and under load, recessed portions, e.g. 3, in which a liquid or solid lubricant can be held so that the surface parts become lubricated on contact when the tyre deflates, thus preventing destruction of the deflated tyre due to frictionally generated heat and enabling continued running of the tyre whilst deflated. The recessed portions may, as shown in Fig. 1, be located on parts A and D of the internal surface adjacent the tyre beads and parts B and C of the surface adjacent the tread edges. The recessed portions may comprise a network of grooves 3 as shown, although numerous other forms of recessed portion are described and illustrated in the Specification (Figs. 2-7, not shown). The tyre may have an aspect ratio of 30-75%, and a cross-ply carcass, or a radial-ply carcass and a breaker assembly. The tyre may be used with a liquid lubricant as described in Specification 1,359,467. Specifications 1,359,461, 1,359,462, 1,359,464 and 1,359,465 are also referred to.
Patent GB-249190-A (GB)
Title: Improvements in or relating to the propulsion of road trains
IPC: B60L50/11
Filed: 1924-12-15
Abstract: 249,190. Chandler, J. H., and Venables, R. E. S. Dec. 15, 1924. Dynamos and motors combined for transmitting power.- In the propulsion of road trams by electric motors fed from generators carried on the vehicles, the motors P<1> P<2>, P<3>, P<4> are provided with separately excited field windings Q<1>, Q<4>, which are designed to supply the greater part of the torque and with series field windings R<1> - - R<4>, which increase or decrease the torque by a limited amount according as the vehicle is taking power or regenerating. The generator A which may be driven by an oil engine or other prime mover has a separately excited field winding C, an exciter machine B, furnishing current to the generator and motor field windings. A rheostatic controller GH varies as required the strength and direction of the exciting currents so as to vary the torque and speed of the motors; the controller also. at suitable points of its movement, energizes magnets S' - - S<4> and T<1> - - T<4> which operate gear-change mechanism. Reversing switch brushes and contacts N<1> - - N4 and 0' - - O<4> form part of the controller. In order to allow for difference of speed between wheels rounding a curve, resistances U<1> - - U<4> and V<1>- - V<4> are added to and subtracted from the motor field and armature circuits by switches X<1> - - X<4> and Y<1>- - Y<4> actuated by the steering gear. The supply and control circuits are taken to a train coupling s, r in such manner that a following vehicle with four motors P<5> - - P<8> may be run under the same conditions as a leading vehicle.
Patent GB-298389-A (GB)
Title: Improvements in and relating to packing chemical and other tablets
IPC: B65D75/68
Filed: 1927-11-09
Abstract: 298,389. Reckitt &. Sons, Ltd., and Whitaker, R. J. Nov. 9, 1927. Unpacking.-Tablets 1, of bath salts &c. grooved at 2 to facilitate division by breaking, are enclosed in an unperforated inner wrapping 7, Fig. 2, with which a tearing tape &c. 4 is associated in such a manner as to register with the grooves, which form guides for the tape and an accommodation therefor, and a flush surface is provided. An outer wrapper may be applied so as to allow the end 5 of the tape to project. A packet may be formed with several tapes and sets of grooves.
Patent GB-292408-A (GB)
Title: Improvements in or relating to gas generators
IPC: C10J3/00
Filed: 1927-11-10
Abstract: 292,408. Moore, H. S., and Moore, W. S. Nov. 10, 1927. Discharging.-In a water-gas producer a coke extractor comprises a semi-rotary extractor-grate 42.
Patent GB-682043-A (GB)
Title: Improvements in or relating to milking machine units
IPC: A01J5/04
Filed: 1950-12-11
Abstract: 682,043. Cow milkers. INTERNATIONAL HARVESTER CO. Dec. 11, 1950 [Dec. 22, 1949], No. 30234/50. Class 84 A milking machine unit having a removable cover for a milk-receiving receptacle has in said cover a liquid trap communicating with a suction pipe. The liquid trap 18 is preferably formed integrally with the milk receptacle cover 12 which is pressed to form a hemispherical depression 19 and a flared re-entrant portion 21 narrowing to an opening 25. Preferably the portion 21 is offset from the axis of the depression 19 and has the opening 25 as near as possible to the centre of the trap 18. The upper portion 27 of the trap is sealed to the cover by a rubber ring 29. Suction is applied to the milk receptacle through chamber 32<SP>1</SP>, check valve 39 and opening 37.
Patent GB-469800-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B14/02
Filed: 1935-11-02
Abstract: 469,800. Projectiles. GERLICH, F. Nov. 2, 1935, No. 30359. Convention date, Nov. 3, 1934. [Class 9 (i)] Relates to projectiles having two or more spaced flanges 4, 5 adapted to be depressed into cannelures 6 behind them when the projectile is fired, for example, as described in Specification 374,091. According to the invention, the projectile has a cavity or recess which enlarges the space or spaces between the flanges, or outlets are provided in communication with this space or spaces, whereby the pressure of gases trapped therein during the passage of the projectile through the barrel is lowered, and greater accuracy of fire obtained. The flanges may be of the same diameter, or the front flange may be of smaller diameter ; the rear flange may be thicker and stronger ; the flanges may be inclined backwardly outwards. The recess between the flanges may be annular as at 28, Fig. 15, and may be separate from the aforesaid cannelure 6 or formed by an enlargement of the cannelure. The outlets may be constituted by passages through the front flange, or may comprise one or more longitudinal passages in the body of the projectile, for example, 20, Fig. 5, open at the front or rear and in communication with radial passages 13 opening in the space between the flanges where an annular groove may be formed. The rear outlet of the longitudinal passages may be provided with a valve 23 adapted to be blown off when the internal pressure exceeds the outer pressure. The outlet may be constituted by passages through the front flange. In the Specification as open to inspection under Sect. 91, Fig. 15, has a profile differing slightly from the one here shown.
Patent GB-625918-A (GB)
Title: Improvements relating to oil retaining and dirt excluding seals for use in machinery
IPC: F16J15/32
Filed: 1946-10-11
Abstract: 625,918. Oil seals. SUPER OIL SEALS & GASKETS, Ltd,. and CLARKE, G. Oct. 11, 1946, No. 30378. [Class 122(v)] An oil seal comprises a housing 1, an L-shaped sealing ring 3 assisted by a garter spring 9 and retained by a ring 6 spaced from a closure ring 2 by a spacing ring 7 which in turn is spaced from the inner periphery of the housing 1 by ribs or protuberances 8.
Patent GB-1220200-A (GB)
Title: A device for limiting a torque to a predetermined maximum value
Inventor: BOUHOT MARCEL PIERRE ALEXIS
IPC: F16D43/208
Filed: 1968-04-17
Abstract: 1,220,200. Brakes. M. P. A. BOUHOT. 17 April, 1968 [19 April, 1967; 21 Nov., 1967], No. 30462/70. Divided out of 1,208,958. Heading F2E. A bi-directional wedging roller brake which is engaged on cessation of driving torque and on overload comprises rollers 58, 58<SP>1</SP> urged by springs 59 into wedging engagement between a fixed drum 60 and cam surfaces 57, 57<SP>1</SP> on a driven cam 52. Initial rotation of a driving sleeve 43 splined to a driving shaft 34 rotates a ring 62 through a toothed connection 49 and projections 67 on the ring 62 positively disengage the rollers 58, 58<SP>1</SP> from wedging engagement between the drum 60 and cam 52. Thereafter a cam 50 on the driving sleeve 43 engages a corresponding cam surface 51 on the cam 52 to drive the latter. The cam 52 is freely rotatable on the driving shaft 34 and is geared at 54, 68 to an output shaft 73. On overload the sleeve 43 rides up the cam 51 against the bias of a spring 44 and disengages the toothed connection 49 thus freeing the ring 62 and permitting the springs 59 to engage the brake. The brake may be used in the drive to the flaps of an aircraft.
Patent GB-485159-A (GB)
Title: Improvements relating to discharge arrangements of containers for powdered or granular material
IPC: B65G53/46
Filed: 1936-11-09
Abstract: 485,159. Pneumatic conveyers ; delivering materials from hoppers. CLAYTON, C. E. EVERY-. (Smidth & Co., Aktieselskabet, F. L.) Nov. 9, 1936, No. 30554. [Class 78 (i)] Openings giving access to discharge conduits at the bottom of a silo or like container are provided with means for alternately exposing them to suction and closing them in such a manner that delivery of material into the conduits occurs only locally at any instant and bridging of the material at the openings is avoided. As shown the openings a, band c are formed in a number of parallel pipes IV at the bottom of the silo. The delivery conduits, Fig. 2, have angularly displaced openings a<1>, b<1>, c<1> and are rotatably mounted within the pipes. Suction is applied to the conduits at one end, and compressed or atmospheric air at the other under the control of valves 3. The outer pipes may, alternatively, have a single longitudinal slot, and the conduits one or more helical slots or be replaced by cylindrical bodies with helical grooves. The pipes and conduits may be arranged at the bottoms of V-shaped grooves in the base of the silo ; they may be disposed radially instead of parallel, and in two layers instead of one.