baber/WOPTO huggingface dataset:
Patent GB-127263-A (GB)
Title: Improvements in or relating to Submarine Mines.
IPC: F42C14/04
Filed: 1916-01-07
Abstract: 127,263. Schneider et Cie. March 31, 1915, [Convention date]. Mines, marine.-Relates to floating mines, the explosive casing of which, on impact, falls away from the float and explodes when it reaches a given depth. According to the invention, the explosive casing and the float are attached together by means of cramps which become disconnected when the float is rotated relatively to the explosive casing by the impact of a ship. As shown, the explosive casing A carries vertical and horizontal rollers B, B' normally interlocked with bearings C, C' on the float D. The bearings C are locked to the brackets a of the rollers B by pins e until these pins are drawn out by springs e<1> when sugar plugs G have dissolved away a given time after the mine is launched. The float D is also connected by a loose wire K to a friction fuse J for firing the mine when the casing A has fallen to the desired depth. The wire K is normally protected by being enclosed in a cup L. The float D is provided with antennae M, which are struck by a passing ship and cause the rotation of the float and its disengagement from the explosive casing A. The combined float and explosive casing may be held slightly submerged by a small float D'. The main float D is provided with a soluble plug P; when this is dissolved, water enters the float and sinks the mine to the bottom out of action.
Patent GB-886629-A (GB)
Title: Improvements relating to monoazo dyestuffs of the benzene-azo-naphthalene series andtheir use
IPC: C09B29/30
Filed: 1959-01-05
Abstract: 2-Aminonaphthalene-sulphonamides the sulphamide nitrogen atom of which is substituted by a sulphonated organic radical and which may be substituted in the 8-position by a hydroxy group, may be prepared by acylating the amino, and possibly hydroxy, group in a 2-aminonaphthalene sulphonic acid, treating the acylated acid with phosphorus halides to give the corresponding sulphonic acid halides, which are condensed with sulphonated primary or secondary amines and the acylamino and possibly acyloxy groups saponified.  They are used in the preparation of azo dyestuffs (see Group IV (c) ).  A number of such sulphonamides are specified, including 2-amino-8-hydroxynaphthalene-6-sulphonic acid -N-ethyl- or -benzyl-N1-4-sulphophenyl-amide, 2-aminonaphthalene-5-sulphonic acid - N - n - butyl - N - 41 - sulphophenylamide, 2 - amino - naphthalene - 7 - sulphonic acid - N - 41-sulphobenzyl-amide and 2-amino-8-hydroxynaphthalene - 6 - sulphonic acid - N - 71 - sulpho-p-naphthyl-amide.ALSO:The invention comprises monoazo dyestuffs of formula <FORM:0886629/IV (c)/1> wherein A is a benzene nucleus which can be further substituted and wherein the sulphonyl group is in o-position to the azo group, R is a hydrocarbon, aryloxy or organic amine radical, X is hydrogen or a hydroxy group and Y is an amino group substituted by a sulphonated organic radical.  They are prepared by diazotising a suitable 2-aminobenzene-sulphonyl compound, either in a solvent such as acetic or formic acid with sodium nitrite and a mineral acid or in concentrated sulphuric acid with nitrosyl sulphuric acid, with an aqueous solution of an alkali metal salt of a suitable 2-aminonaphthalene-sulphonamide which may contain ethanol or dioxane.  The dyestuffs give orange, yellowish-red and blueish-red shades on wool.  In examples many dyestuffs of the above formula are prepared, components specified including 2-amino-benzene-1 - sulphonic acid - 41 - carbobenzoyloxy-aminophenyl ester, 5-ethoxycarboxylamino-2-amino-41-methyl-1 : 11diphenyl sulphone and 2-aminobenzene-1-sulphonic acid dicyclohexylamide; 2-amino - 8 - hydroxynaphthalene - 6 - sulphonic acid - N - ethyl - N - 41 - sulphophenyilamide 2 - aminonaphthalene - 7 - sulphonic acid - N - methyl - N - 31 - sulphophenylamide and 2 - amino - 8 - hydroxynaphthalene - 6 - sulphonic acid - N - methyl - N - [7 - sulphonaphthyl - (2)]- amide.
Patent GB-1342368-A (GB)
Title: Process and catalyst for enriching a fluid with hydrogen isotopes
Inventor: STEVENS W H
IPC: C01B5/02
Filed: 1971-01-05
Abstract: 1342368 Isotope exchange ATOMIC ENERGY OF CANADA Ltd 5 Jan 1971 [28 Jan 1970] 475/71 Heading C1A [Also in Divisions B1-B2] Hydrogen isotopes are exchanged between liquid water and hydrogen gas by exposing the water and hydrogen while in contact with one another to a catalyst body comprising a Group VIII metal and completely covered by a sealing coating of a resin which is impermeable to liquid water but permeable to hydrogen gas and water vapour. The resin may be a silicone resin, a hydrocarbon polymer or a fluorocarbon polymer.
Patent GB-899935-A (GB)
Title: Improvements in or relating to circuit arrangements for synchronizing a local oscillator
IPC: H04N5/12
Filed: 1960-01-06
Abstract: 899,935. Automatic phase control systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan 6, 1960 [Jan. 9, 1959], No. 487/60. Class 40(5).  In an arrangement for synchronizing an oscillator 3, Fig. 5, with a synchronizing signal 1, comprising a phase detector 2 to which the signal 1 and a sawtooth waveform 4 derived from the oscillator are applied, and which is effective over a limited range of phase difference to control through a filter 5 a reactance valve 6, an additional catching circuit including a gate 9 for gating the synchronizing signal directly to the oscillator is controlled by a separate phase detector 7 to open the gate when the phase error exceeds the catching range of the first phase detector, and to close it in conjunction with a reduced output from phase detector 2 when the phase error is brought back within the catching range. The pulses 10 from the oscillator to the second phase detector are chosen to be of great duration with respect to pulses 1. Synchronization of pulses 1 and 10 causes valve 24 to draw current and cut off gate 9. In the out of synchronizm position pulses 1 are amplified and fed via capacitor 27 for direct synchronization to the screen grid of oscillator 29.
Patent GB-605822-A (GB)
Title: Improvements in and relating to apparatus for solving physical problems
IPC: G06G7/46
Filed: 1946-01-07
Abstract: 605,822. Electrical calculating apparatus. BOULTON PAUL AIRCRAFT, Ltd., and REDSHAW, S. C. Jan. 7, 1946, No. 492. [Class 106 (i)] Apparatus for solving physical problems comprises a network of resistances having a short-circuited boundary representing the physical boundary of the problem, means for feeding in at the nodes of the network an electric current representing in magnitude the independent variable, and an instrument adapted to measure the potential difference between the boundary and each of the nodes of the network. The invention is applied to the determination of the pattern of a loaded body, a system satisfying Poisson's equation, #<2>#/#x<2> + #<2>#/y<2> =f(x,y), which can be expressed in finite difference form as 4#0- #1- #2 - #3 - - #4+a<2>f(x,y)=0, if the area considered is divided by an imaginary square network so that #0, #1 ... #4 are the displacements at a central node and the four adjacent nodes, at a distance of a from the central node. This network is represented electrically by nodes 2 short-circuited on the boundary and connected by a square network of equal resistances 3. The boundary is connected to a battery 5, while the inner nodes are connected by large variable resistances 6 through switches 14 to the other side of the battery. For solving Poisson's equation, the switches 14 are closed and the resistances 6 are adjusted to feed in at each node a current proportional to the value f(x, y) at that node. A galvanometer 11 and potentiometer 12 are used with a wander plug to determine the potential difference between each node and the boundary short-circuit to give the value of # tor that node. As an example, for a uniformly loaded membrane, represented by the equation, where c is a constant, the resistances 6 are all equal. A further example is a membrane loaded only at its centre, represented by Laplace's equation, In this case, the switches 14 are opened except that leading to the centre of the network. Networks other than square may be used. In the case of a boundary not conforming to the shape of the network, the resistances adjacent the boundary may be adjusted.
Patent GB-653630-A (GB)
Title: Improvements in and relating to high voltage electric gas blast circuit breakers
IPC: H01H33/12
Filed: 1948-01-07
Abstract: 653,630. Gas-blast switches; air break switches. BRITISH THOMSON-HOUSTON CO., Ltd., and VEALE. R. H. Jan. 7, 1948, No. 52 2. [Class 38(v)] In a gas-blast circuit breaker having an air-break series isolating switch and gasblast interrupting break with a gas container and blast valve mounted adjacent to the interrupting break and at the electrical potential of the circuit, the post insulator carrying one of the isolating switch blades is rotated initially through a small angle. to effect the opening of the blast valve without opening the isolating switch. The isolating switch blades 1, 2 are carried by post insulators 3, 4 which may be rotated through the medium of the linkage 5-9 by the piston in the opening or closing cylinder, 10 or 11. A lost motion connection is provided between the post 3 and the blade 1 by means of abutments 15, 17 and a spring 16 which bears on an arm 14 attached to the blade 1. To open the circuit-breaker, pressure is applied to the cylinder 10 and the post insulator 3 commences to rotate in a clockwise direction whilst the blade 1 is held stationary, as the arm 14 is trapped between members 23, 24. An arm 18 fixed to the post 3, operates a bell crank lever 19 to open a blast valve 20 to admit pressure gas to the blast head (not shown) from the container (not shown). When the blast valve opens, pressure is applied to a piston 25, which through the member 23, tends to urge the arm 14 in the switch opening direction. Pressure is exerted a short time later on a piston 26 by gas which has passed through a delay opening 28. The resulting movement of the piston 26 turns the member 24 and thus removes the obstruction to the movement of the arm 14, so that the continuing rotation of the post 3 opens the isolating switch. The thrust exerted by the piston 25 assists in breaking any ice formation on the isolating switch contacts. Specification 561,157 is referred to.
Patent GB-1484268-A (GB)
Title: Hole piercing apparatus
IPC: H01M50/529
Filed: 1974-11-20
Abstract: 1484268 Punching apparatus LUCAS BATTERIES Ltd 20 Nov 1974 [5 Jan 1974] 00544/74 Heading B4B An apparatus for punching holes in a partition walls 13 of a multi-cell battery casing comprises a plurality of punching devices 22 operable to punch holes in their respective walls, means 26, 27 for supporting the casing in the required position relative to the punching devices, switch means 28, 29 operable by the casing when it is in the required position and means for adjusting the location of the switch means relative to the support means so that the apparatus can be used with casings having walls of different height. The punching devices include a die 23, an hydraulically-actuated punch 24 and a stripper 34. The switch 28 is operated by a lever 29 which is contacted by the edge of the outer wall 12 of the casing, the switch being secured to a support 32 by a screw 30; the support is provided with surfaces 31a, 31b at different levels so that the height of the switch may be adjusted. A support means 26, 27 is provided at each end of the battery casing together with an associated switch 23.
Patent GB-696014-A (GB)
Title: Improvements in or relating to amplitude-modulators for carrier waves
IPC: H04J1/04
Filed: 1952-01-08
Abstract: 696,014. Modulating systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 8, 1952 [Jan. 11, 1951], No. 565/52. Class 40 (v). Relates to amplitude modulators in which a signal of mean frequency f is applied to a balanced network through a band-pass filter 2, and the carrier of frequency F is applied at terminals 7, thus producing at the output transformer 8 two side-bands F+f, of which one (say F - f ) is suppressed by a filter 3; and consists in connecting across the modulator one or more shunts 17, 18, 19 designed to absorb one or more side-bands which after successive reflections at the filters 3, 2 would produce a distorting signal lying within the wanted sideband F+f. The carrier source 7 is centretapped on the one hand to the secondary coil 4 of the input transformer 5, and on the other hand to each of the primary coils 9 of the output transformer 8. The contact rectifiers 13 ... 16 are connected with the polarity shown between the outer terminals of the input secondary coil 4 and the outer terminals of the output primary coils 9. The unwanted distorting side-band may arise in the following manner. The band of frequency F - f is reflected into the modulator by the filter 3 and is there mixed with the third harmonic 3F of the carrier to produce a band 2F+f. This band would pass to the filter 2 where it would be reflected and returned to the modulator to mix with the carrier F to produce a band F+f which would pass through the filter 3 to distort the wanted side-band. The shunt 17, 18, 19 however, is designed to absorb the band 2F+f and the distorting effect is thus avoided. Parastic capacities represented at 20 are taken into account in designing the absorbing network.
Patent GB-465719-A (GB)
Title: A method of treating peat for medicinal purposes
IPC: A61K8/97
Filed: 1935-12-09
Abstract: Peat paste for medicinal purposes is prepared by reducing moist peat to a fineness such that 90 per cent passes through a 50 mesh sieve, the reduction being effected in the machine described in the parent Specification.
Patent GB-212353-A (GB)
Title: Improvements in or relating to boxes or receptacles for toilet or face powder and the like
IPC: A45D33/00
Filed: 1923-01-08
Abstract: 212,353. Morny FrÞres, Ltd., and Hales, W. M. Jan. 8, 1923. Contents, delivering. -In a portable box or receptacle for toilet or like powder, the powder is contained in a cylindrical collapsable bag of impermeable material attached to a ring or collar provided with a diaphragm of fine gauze or the like forming a sieve through which the powder may pass. A powder puff is normally retained in close contact with the sieve to prevent leakage of powder and may be manipulated in bellows fashion when the deposit of powder thereon requires renewal. The flexible powder bag a, Fig. 8, which may be of material such as cellulose, strong tissue paper, thin rubber, silk or the like, is attached to a collar b with a flange b<2> to which a gauze diaphragm or sieve c is affixed, the opposite end of the bag being closed after filling by a rigid disc d behind which the material a<2> may be secured by tying or by an adhesive.. The free end of the collar b is formed with a beading or intwined flange b<1> separated from the flange b<2> by a distance sufficient to accommodate the powder puff e, Fig. 1, the puff being squeezed past the flange b<1> and thereby retained in close contact with the flange b<2> and seive c. The collar b and bag a are slidably fitted within a sleeve f which tightly fits the bottom half g of the receptacle, the outer edge of the sleeve f being formed with an inturned flange f<1> to retain the collar b &c. in place.. The foundation e<1> of the puff e is provided with a ring e<2> providing for manipulation. The lid or cover h forms a tight fit around the sleeve f and may carry a mirror i retained therein by an annular washer or ring k secured by adhesive or otherwise.
Patent GB-415318-A (GB)
Title: Non-slipping and anti-skidding tyre for motor vehicles and motor cycles
IPC: B60C27/00
Filed: 1934-01-08
Abstract: 415,318. Wheel tyres. MUCKLICH, M., 15, Hospitalstrasse, Dresden, Germany. Jan. 8, 1934, No. 629. [Class 144 (ii).] A renewable tread for a pneumatic tyre consists of rubber blocks 19, with embedded perforated metal plates 22, screwed into metal cores 8 which are secured in recesses in the tyre cover. To ensure continuity in the tread, each block 19 is formed at one end with a lip 26 to engage a recess 25 in the adjacent block. The cores 8 are further secured by cables 15 fitted with blocks 16 which engage recesses 13 in the cores.
Patent GB-980538-A (GB)
Title: Apparatus for inside-turning housings to an internal contour having the form of an epitrochoid
IPC: B23Q27/00
Filed: 1964-01-07
Abstract: 980,538. Machine tool details. SCHIESS A.G. Jan. 7, 1964 [Jan. 8, 1963], No. 642/64. Headings B3B, B3C, B3K and B3T. Apparatus for inside turning of castings to an epitrochoid form comprises, a tool head 1 freely rotatable on an eccentric 10 disposed on a rotatable splined shaft 2, the tool head having an internal gear 15 with the same axis eccentric 10, which meshes with a non-rotatable pinion 16, co-axial with shaft 2, the ratio of eccentricity of eccentric 10, to the radius of pinion 15, being 1:2 and the ratio of the radius of the pinion, to that of gear 15, being 2:3. Shaft 2 rotates in a bush 5, fixed to a hollow shaft 6, the latter being non-rotatable, but axially displaceable, and the bush has pinion 16 disposed thereon. The inner bore of the tool head is sealed by bellows 17, 18, and the feed is imparted to the tool, so that shaft 2 and rod 6 are jointly displaced axially. The head is carried by a carriage 23, in a turret lathe, Fig. 3, shaft 2 is driven by a chuck 21, and the work 27 is clamped to bed 20, by dogs 28, on a ring 29 supported by a member 30.
Patent GB-586137-A (GB)
Title: Improvements in or relating to thermionic valve circuits for modifying potentials
IPC: H03K4/10
Filed: 1944-01-12
Abstract: 586,137. Valve amplifying and pulse shaping circuits. WHITE, E. L. C., JAMES, I. J. P., and BEST, J. E. Jan. 12, 1944, No. 645. [Class 40 (v)] A circuit for modifying a potential comprises a first impedance connecting the potential source to a negative feed-back amplifier arranged to have a low impedance over a certain range of frequencies so that the current flowing is determined mainly by the potential and the impedance, a second impedance, of different type from the first, being included in the circuit of the amplifier and having an impedance large compared with the amplifier, whereby the whole or part of the current flows in the second impedance to develop the modified potential. As shown in Fig. 1, the potential to be modified is applied at terminal 10 over a first impedance 20 to the direct-coupled amplifying valve 12 feeding a cathode follower 13. Due to the negative feed-back connection between the cathode of valve 13 and the grid of valve 12 over the second impedance 21, the amplifier presents a low input impedance. The current through impedance 20 is thus dependent on the applied potential and the impedance and passes through the second impedance 21 to develop the modified potential which appears at terminal 11. By choosing impedances 20, 21 to be a resistance and capacity respectively, the circuit functions as an integrating circuit or a differentiating circuit if the reverse choice is made. In a modification, Fig. 2, a single amplifier is used, pulses applied at terminal 10 appearing as saw-tooth waves at terminal 11. In a further modification, Fig. 3 (not shown), the input is applied over impedance 20 to a grounded-grid amplifier with a cathode load, the anode load comprising the second impedance. In a further modification, Fig. 4 (not shown), the first impedance shunts the cathode resistance of an amplifier, the anode load again serving as the second impedance. Reference has been directed by the Comptroller to Specification 575,250.
Patent GB-570719-A (GB)
Title: Improvements in or relating to moulds for casting metals
IPC: B22C1/00
Filed: 1944-01-14
Abstract: 570,719. Mould materials. GOLDSCHMIDT, V. M. Jan. 14, 1944, No. 742. [Class 83 (i)] Moulds are made from granular olivine or other material rich in magnesium orthosilicate, substantially free from grains less than 0.15 mm. in diameter, and bonding material. The orthosilicate preferably contains under 13 per cent of iron calculated as FeO and the upper limit of the grain size may be about 0.5 to 5 mm. The bonding material should preferably have a specific gravity different from that of the granular material to assist separation of materials when making new from old moulds. Suitable bonding materials are bentonite, Portland cement, or magnesium oxide. The moulds may be faced with very finely-divided olivine &c. mixed with water or other liquid applied by a spray or brush. The particle size for the bulk of this material may be 'about 0.002 mm. and the thickness of the coating 0.2 to 1.0 mm. The facing material may also include some non-aluminous and non-calcareous refractory material, e.g. graphite, carbon, or magnesium oxide and a small quantity of gum, resin, or waterglass. Moulds made in this way can, after use, be freed from the bonding material by crushing and air classification. The moulds are suitable for casting alloys of iron with chromium or with chromium and nickel.
Patent GB-487888-A (GB)
Title: Improvements in or relating to temperature-actuated mechanisms
IPC: H01H73/24
Filed: 1937-01-11
Abstract: 487,888. Thermal switches. LAMBERT, D. R. Jan. 11, 1937, No. 782. [Class 38 (v)] [Also in Groups XIII and XXIV] A bimetallic strip 1 is mounted to swing on a fixed pivot 2, its opposite end being pivoted to a link 4, whose opposite end is pivoted to a lever 6 hinged on a fixed pivot 7. The pivot 3 is slightly below the line 2-5, and on temperature deformation of the strip 1 moves across this line. If the force of a spring or weight is applied to the end of the lever 6, the toggle mechanism collapses to the dotted line position. The mechanism is reset by hand. In order to ensure that deformation of the strip 1 causes movement of the pivot 3 rather than a displacement of the central part of the strip, a stop 8 is provided, which may be adjustable to vary the temperature at which the mechanism operates. In the application to the control switch of an electric iron, Fig. 2, the link 4 is pivoted to the strip 1 at 3 and to a frame 10 secured to a fixed member 11. A lever 13 which actuates the switch, is pivoted to the frame 10 at 12 and to the strip 1 at 14. A spring 15 maintains the strip in tension. The strip 1 receives heat from a metal block 16 which also serves the purpose of the stop 8, Fig. 1, and the effect of rise of temperature is to raise the pivot 3 until the line 3-14 passes to the other side of the pivot 9, when the toggle collapses and the switch is actuated. In Fig. 4, the link 4 is replaced by a ball 17 rolling in a frame 18. When the strip 1 moves upward as a result of temperature change, the ball 17 rolls down the inclined surface 23. The temperature adjustment is effected by adjustment of the block 22 by screws 24. Both members of the toggle mechanism may be bimetallic.