baber/WOPTO huggingface dataset:
Patent GB-568009-A (GB)
Title: Improvements in or relating to toxicological preparations
IPC: A01N25/04
Filed: 1942-11-24
Abstract: An insecticidal preparation comprises a stable emulsion of a non-volatile mineral oil in water, an added organic insecticide dissolved in the oil phase, a hygroscopic agent and a dispersing agent having the property of stabilizing the oil/water interface of the system and ensuring persistence thereof after application of the preparation to a surface or as a spray.  Suitable insecticides include pyrethrins, rotenone, nicotine or mixtures of alkyl isothiocyanates and their action may be supplemented if desired by the addition of toxic substances such as copper, sulphur, mercury or arsenic compounds, or derris or cub<\>ae. Suitable mineral oils include kerosene, oils of the medicinal paraffin type or Shell Oil P.31.  Solvents such as tetralin, dekalin, oil of sesame, Ceylon citronella oil, benzyl benzoate, cyclohexanone, or methyl cyclohexanol may be added to the oil phase.  The hygroscopic agent may be glycerol, diethylene glycol, chondrus jelly or water-attracting gums such as pectin.  The dispersing agent may consist of an oil-soluble component such as cholesterol, cetyl alcohol, oleyl alcohol, a commercial preparation of mixed secondary alcohols from C10 to C18, geranium oils, or essential oils containing alcohols, and a water-soluble component such as sodium cetyl sulphate, sodium oleyl sulphate or hexadecyl trimethyl ammonium bromide. The insecticidal preparation may be rendered sufficiently viscous to form a cream by incorporating gum tragacanth or chondrus jelly in the water phase, by having a water phase consisting of silica gel, by incorporating soft or hard paraffin waxes in the oil phase, by the use of a solid dispersing agent such as hydrated alumina, or by incorporating a cellulose ester or a soap in the dispersion.  Such creams can be stabilized by the use of dispersing agents of one type only such as diglycol stearate, glyceryl mono-stearate, hydrated alumina or mixtures thereof. Certain of the specific examples also include the addition of hydroquinone, pyrotalechol, sodium bisulphite and tannic acid as anti-oxidants, gelatine as a sticker, carbitol as an emolient, and dimethyl phthalate to render the creams repellant to insects. Specifications 426,051, 493,074 and 547,927 are referred to.  The second Provisional Specification describes also insecticides comprising a capillary active toxic agent such as pyrethrins, a liquid carrier such as a heavy mineral oil and fine particles of dust, such as silica, talc or calcium sulphate, suspended in the liquid.  Such a preparation may be sprayed with a solution of calcium chloride or may be used in the presence of small quantities of water.
Patent GB-570759-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B15/88
Filed: 1943-10-11
Abstract: 570,759. Knitting-machines. WILDT & CO., Ltd., and HOLMES, H. H. Oct. 11, 1943, No. 16644. [Class 74 (ii)] A circular machine for knitting socks or other articles or fabrics having pouches and provided with auxiliary fabric tensioning means comprising a device mounted upon a rod so as to be brought automatically 'into engagement with the fabric of the pouch, has means whereby the device can be restored manually to its normal position at any stage of its operative movement and can be held in this position until it is automatically released. The rod 7 supporting the fabric-engaging device is operated from a control drum 12 by levers 9, 11 and link 10, and for holding the rod in its normal inoperative position when it has been raised manually, a stepped bar 23 pivoted on the lever 11 is pulled by a spring 26 so that a shoulder 23a thereon engages beneath a stop 24 on a fixed bracket 14. To release the rod 7, the bar 23 is operated by lever 28 and link 27, the lever 28 being connected to some such mechanism as the heel- and-toe yarn take-up mechanism. The fabricengaging device may be of the form described in Specification 569,668.
Patent GB-874414-A (GB)
Title: Antibacterial agents
IPC: C07D499/46
Filed: 1960-05-11
Abstract: Relates to penicillins of the general formula <FORM:0874414/IV (b)/1> where n is 2, 3 or 4 such as 6-(5-cyclohexyl-valeramido), 6-(3-cyclohexylpropionamido) and 6-(4-cyclohexylbutyramido) penicillanic acid and to non-toxic salts thereof, which may be prepared by reacting 6-amino-penicillanic acid, preferably in the form of a neutral salt such as the sodium or triethylamine salt, with an acid chloride of the general formula <FORM:0874414/IV (b)/2> where n is 2, 3 or 4, or its functional equivalent as an acylating agent for a primary amino group such as the corresponding acid bromides, acid anhydrides and mixed anhydrides with other carboxylic acids, including monoesters of carbonic acid.
Patent GB-292103-A (GB)
Title: Improvements in the manufacture and production of plastic and elastic polymerisation products of diolefines
IPC: C08F36/04
Filed: 1928-06-08
Abstract: 292,103. I. G. Farbenindustrie Akt.- Ges. June 13, 1927, [Convention date]. Polymerized diolefines.-The polymerization of olefines emulsified in suitable aqueous liquids, to produce artificial rubber, is effected by the aid of hydrogen peroxide, with or without other polymerizing agents such as viscous liquids, proteid substances, buffer mixtures which establish a definite hydrogen-ion concentration in the dispersion agent, or electrolytes. The emulsions may be prepared by the aid of proteids, milk, dextrine or soaps, and the polymerization can be effected at room or elevated temperatures. In an example, an emulsion of 3 c.cms. of cow's milk, 20 c.cms. of isoprene and 3 c.cms. of 3 per cent hydrogen peroxide is heated to 95‹ C. for 4-5 days in a closed vessel. Specifications 283,840 and 286,272 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of emulsions of diolefines in any liquids and the use of sulphonates for emulsifying purposes. This subject-matter does not appear in the Specification as accepted.
Patent GB-954549-A (GB)
Title: Improved wrapping machine
IPC: B65B13/08
Filed: 1960-05-11
Abstract: 954,549. Tape-applying machines. MINNESOTA MINING & MANUFACTURING CO. May 11, 1960 [May 11, 1959], No. 16711/60. Headings B8C and B8F. A machine for binding articles A, e.g. bundles of wooden boards, with tape T comprises means 85, 86 for holding the end of the tape and a taping arm 110 mounted on two cranks 116, 118 so as to move substantially translationally relative to the supporting structure of the machine for bringing the tape around the article. The tape is adhesive on one side and the article A is placed upon a platform 30 and moved backwards against an abutment plate 45 to position it slightly in rear of a line B. The operator then actuates switches which raise fences 62 at each side of the machine and lower a clamp 50 to grip the article. Fig. 3 shows the starting position of the taping mechanism, the end of the tape being gripped by the jaws 85, 86. Tacker roller 91 rises to press the adhesive side of the tape against the bottom of the article and tacker 95, 96 moves upwardly while the jaws 85, 86 open to release the end of the tape, which is carried upwardly by tacker face 96 and pressed against the front of the article. The taping arm 110 is mounted on cranks 116, 118 for translational movement and the tape T is threaded from a feed roll over guides 168 and take-up mechanism 191 to rollers 200, 222 on the taping arm 110. As the arm 110 moves anti-clockwise from the position shown in Fig. 3 the tape is wrapped around the article, and when the parts reach the position shown in Fig. 6 a spring 218 tacks the tape to the front face of the article. A knife 236 then severs the tape and a buffer roller 220 forces the severed end against the end of the tape which was first applied to the article at the lower front corner. The roller 220 then moves further to press the tape on to the bottom of the article. When the tape is severed the release of tension causes the pinch roll 202 to grip the tape, the jaws 85, 86 are opened, plate 82 is pivoted upwards from the position shown in Fig. 6 and the jaws close to grip the end of the tape extending from between rollers 222 and 224. Should the jaws 85, 86 fail to grip the end of the tape the operator can cause the action to be repeated. The clamp 50 and fences 60 are then released and the article removed. The arm 110 returns to the position shown in Fig. 3 and the machine is thus set for another cycle. If no article is present on the platform 30 the clamp 50 operates switches to stop the machine.
Patent GB-258936-A (GB)
Title: An improved trouser supporting device
IPC: A41F3/00
Filed: 1925-06-30
Abstract: 258,936. Pugh, L. W. June 30, 1925. Braces; belts. - A trouser-supporting device comprises an adjustable waist-belt having substantial transverse rigidity, cross or associated shoulder straps connected to the belt, and means mounted on the trousers to contact with the upper edge of and partly embrace the belt. As shown, the straps d connected to the belt a have buckles e for adjusting their lengths, and the trousers f are provided with button-like devices g each comprising a disc h, stem i, and bead j. The devices g may be attached by sewing k, and engage with the upper edge a<1> of the belt and partly embrace the belt by means of the discs h. Instead of the devices g, clips or hooks may be used.
Patent GB-145489-A (GB)
Title: Improvements in corrugated sheet metal
IPC: E04C2/32
Filed: 1920-06-21
Abstract: 145,489. Junkers, H. Aug. 28, 1917, [Convention date]. Cars; planes, construction of.-Corrugated sheet metal, applicable to the construction of supporting surfaces or body coverings for flying-machines, is made with small corrugations on each main corrugation, as shown in Fig. 1, or each small corrugation may itself be similarly formed with smaller corrugations, as shown in Fig. 2. The smaller corrugations may vary in curvature, the curvature increasing towards those parts remote from the neutral axis. Such parts only may be provided with the smaller corrugations. The main, small, and smaller corrugations may be rectangular, triangular, or trapezoidal, and rectangular main corrugations may have straight vertical sides and corrugated tops and bottoms.
Patent GB-1391987-A (GB)
Title: Nuclear power installations
IPC: G21D1/04
Filed: 1972-04-12
Abstract: 1391987 Cooling nuclear reactors BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 10 April 1973 [12 April 1972] 16842/72 Heading G6C  A nuclear reactor installation includes coolant circulators 18 driven by respective steam turbines 26 whose supply is derived from auxiliary boilers 19, heated by the coolant, in parallel with main boilers 17. The circulators 18 are mounted in cavities 14, in a concrete pressure vessel 13, above respective main boilers 17 connected to main turbo-generators. The exhaust of the steam turbines 26 is used in auxiliary turbo-generators 25. Other circulators 20 associated with the auxiliary boilers 19 may (as shown) be driven by electric motors 33 or from the auxiliary steam circuit. The variable power requirements of the circulators 18 can be met by provision of by-pass lines including pressure-reducing valves 29 and attemperators 30. In the event of a trip of the main circulators 18, a safety valve 31 is provided as protection for the auxiliary steam circuit. In a modification (Fig. 2, not shown), the exhaust from the steam turbines 26 passes to reheaters (33) in the auxiliary boiler cavities. The coolant may be carbon dioxide or helium and the description is given with particular reference to a helium-cooled HTR.
Patent GB-862104-A (GB)
Title: Lubricant seal
Inventor: ATKINSON GERALD OLIVER
IPC: E21B10/25
Filed: 1958-05-27
Abstract: 862,104. Boring earth. HUGHES TOOL CO. May 27, 1958, No. 16866/58. Class 85. [Also in Groups XXVI and XXXIV] A lubricant seal for an earth boring drill comprises an annular ring 21 which is axially resilient and is interposed between opposing surfaces 22, 28 respectively on a leg 3 of a bit head 2 and the base of a corresponding cutter 7, the ring 21 having limited radial movement on the shaft 4 of the cutter to allow for rapid axial and wobbling movements between the confronting faces 22, 28. The ring 21, which is preferably dished, consists of a radially-slotted core 30 which is made e.g. of steel and is encased in material 36 having inner and outer oppositely axially-extending annular ridges 34, 35 which are urged info engagement respectively with the faces 22, 28. The material 36 is made e.g. of a chemically inert oil resistant synthetic rubber or plastic. The core 30 may be circumferentially corrugated instead of being radially slotted. In a modification an inner deformable beading along the inner periphery of the ring extends axially inwardly to contact the surface 21 of the leg 3. The head 2 has an internal chamber 5 from which flushing fluid is conducted downwardly through a passageway 6 to the cutters 7. Radial loads on the cutter are taken by roller and ball bearings 8, 9, the latter also receiving loads axially of the shaft. A pilot pin 11 on the end of the shaft 4 fits within a bushing 12 pressed into the bore 13 of the cutter, a thrust button 14 carried by the cutter at its closed end assuming a portion of the outward thrust. The cutter is first mounted on the shaft with the bearings 8 in place, the balls then being introduced through a bore 15 until the ball bearing is complete whereupon a pin 16 is welded in the bore 15. Lubricant for the bearings is supplied from a chamber 17 in the head 2 the lower end of the chamber communicating with the bore 15 and cut-away portions of the pin 16, so that lubricant may run freely to the bearings. The upper end of the chamber 17, closed by a plug 10 having a breather 20, accommodates a slidable member 19.
Patent GB-1329052-A (GB)
Title: Method of manufacturing thick-film hybrid integrated cirucits
IPC: H01L25/16
Filed: 1971-05-25
Abstract: 1329052 Circuit assemblies RCA CORPORATION 25 May 1971 [6 July 1970] 16878/71 Heading H1B A method of making a hybrid circuit comprises the steps of depositing on an insulating base 2 a pattern of electrical conductors and circuit components, e.g. resistors, capacitors &c. and covering the base and circuitry with a thin layer of soft, elastic resin 116 having openings, e.g. 118, 120 at predetermined locations. Conductive ribbons, e.g. 134, 136, are then deposited upon layer 116 between other openings 122, 126 and 124, 128 and constitute jumper connections between portions of the lower circuitry. Additionally, further components, e.g. diodes 130, 132 are mounted, e.g. by soldering, on terminals located below openings 118, 120. The resulting assembly is encapsulated with a thick coating of hard resin, e.g. an epoxy. Prior to applying the hard resin coating, the jumper connection may be covered with resin of the same composition as layer 116. The jumper connections and the electrical conductors and circuit components of the lower circuitry may be deposited by screen printing. Certain components of the lower circuitry may be abrasively trimmed by leaving openings in layer 116. Insulating base 2 may be of ceramic or of any composition which is heat resistant, is a good thermal conductor, and has a low dielectric constant. Layer 116 may be composed of silicones, diallyl phthalate, polyimides or polyurethanes and may be transparent.
Patent GB-1472115-A (GB)
Title: Dc motor control apparatus
IPC: H02P7/29
Filed: 1974-04-18
Abstract: 1472115 Automatic control of speed SANKYO SEIKI SEISAKUSHO KK 18 April 1974 [18 April 1973 19 April 1973] 16909/74 Heading G3R A speed control system for a D.C. motor has an analogue loop and a phase control loop using, respectively, a voltage and a frequency proportional to motor speed. If reference frequency pulses and the pulses at a speed dependent frequency alternate, an output of a comparator in the phase control loop switches between two levels, to form an analogue value dependent upon the phase difference between the two pulses, which value is used as a speed control signal. If two reference pulses occur between two motor speed pulses, the output locks to one level until the occurrence of two motor speed pulses between two reference pulses. Similarly if two motor speed pulses occur between two reference pulses, the comparator output locks to the other level. As shown, the phase comparator 25 comprises a pair of flip-flop circuits FF1, FF2 that are cross coupled to form a bi-stable latch counting circuit, the normal and inverted outputs of FF1 being summed by resistors 27 to form the analogue motor control signal. The reference frequency pulses are obtained from multi-vibrator 26 and the actual motor speed signal via a filter (not shown) and shaper 23 from a motor driven tachometer (having a frequency and amplitude proportional to motor speed). The tachometer output is also rectified and filtered to form the motor speed dependent voltage used in the analogue control loop.
Patent GB-222219-A (GB)
Title: An improved line balance for loaded telephone circuits
IPC: H04B3/40
Filed: 1923-06-29
Abstract: 222,219. General Electric Co., Ltd., and Bartlett, A. C. June 29, 1923. Artificial lines.-A modification of the artificial lines for loaded telephone and like circuits described in Spelcifications 18018/13, [Class 40 (iv), Telephones &c.], and 179,736, comprises the following impedance elements in series, (1) a condenser of capacity C1, (2) a resistance r in parallel with a capacity K, (3) an inductance L2, the relations of the quantities C1, r, and L2 to the line constants, when the balance is connected to the middle point of a loading coil, being expressed by the equations C1 = 2C/R #H/Cl r = #H/Cl and L2 = H/#8, in which C and R are the capacity and resistance per unit length of the line, H is the inductance of each loading coil, and 1 is the distance between successive coils. The capacity K in this case has the value Cl/#8. If the artificial line is connected with a point b in a loading coil such that the distance c, Fig. 2, from the end of the coil is 0.15 of the coil length, the inductance I2 is eliminated. The inductance L2 may also be eliminated when the artificial line is connected to the end of the coil as shown in Fig. 4 by substituting for the capacity H K a capacity K1 such that K1 r<2> = H/2. The manner in which the value of the inductance L2 is determined for various values of the distance c is set out in the Specification.
Patent GB-612788-A (GB)
Title: Improvements in or relating to devices for tuning radio-apparatus
IPC: H03J1/10
Filed: 1946-06-04
Abstract: 612,788. Indicating-apparatus. PHILIPS LAMPS, Ltd. June 4, 1946, No. 16947. Convention date, April 22, 1942. [Class 40 (v)] A radio timing device comprises a scale, knob and pointer which are mounted so as to be easily detachable from the housing of the tuning component and in which the tuning component and the pointer have their extreme movements limited independently by stops, so that when the pointer is in contact with one stop, the wavelength indicated corresponds to the corresponding extreme position of the tuning component, the knob being connected to the pointer through a slipping coupling. In the Figure, the slipping coupling is comprised by a cord 11 and the movement of the pointer 2 is limited by stops 13 and 14, one of which is preferably adjustable. Coupling between the two parts of the driving shaft 7 of worm gear 6 and of condenser 5 is made by means of a claw-coupling 10, thus enabling the front plate 1 with the components mounted on it to be removed and access easily obtained to the rest of the apparatus. For adjustment of the pointer relative to the shaft of the tuning component after replacement of the front plate, the tuning component is rotated to one of its extreme positions and the knob further rotated with the cord 11 slipping until the pointer abuts the corresponding stop. The path which the pointer can traverse between its two stops should preferably be made equal to that corresponding to the difference between the extreme positions of the tuning member.
Patent GB-1147539-A (GB)
Title: Method and apparatus to effect binary to decimal conversion
Inventor: BAKOCS LASZLO
IPC: H03M7/08
Filed: 1966-04-18
Abstract: 1,147,539. Binary to decimal conversion. KOZPONTI FIZIKAI KUTATO INTEZET. 18 April, 1966, No. 16964/66. Heading G4A. Binary digital words are converted rapidly to decimal form by adding or subtracting a power of ten to the binary number or its complement until overflow or zero is reached, registering the number of these operations less one, incrementing or decrementing the result in unit binary steps until said power of ten or its complement is reached and separately registering the number of these unit binary steps. In a first embodiment (Fig. 1), the binary number K(0<K<2<SP>N</SP>) to be converted is initially entered into an accumulator unit 6. On receiving a Start signal a the binary number is complemented and by means of a control unit 3 a binary quantity equal to 10<SP>m</SP>(0<m<N log 2 10) is added (once for each pulse from a clock pulse generator 1) into the accumulator unit 6 which has provision for end-around-carry until the resulting sum overflows. For each addition of 10<SP>m</SP> to the number in unit 6, the control unit 3 increments by one the 10 m  stage of a decimal counter 10 in which the result is generated. On detecting overflow from unit 6, overflow indicator 7 closes gates 2 and 4 and opens gates 5 and 9, the timing being such that the closing of gate 4 blocks the final pulse from unit 3 to counter 10. Clock pulses through now open gate 5 cause accumulator unit 6 and counter 10 (units input) to be incremented in step until the number in unit 6 equals 10<SP>m</SP> as detected by comparator 8. This causes gate 5 to be closed and a comparison completed signal b to be generated. In a worked example N=6 and m=1. In a modified embodiment the following differences apply: the binary number in unit 6 is not complemented, the quantity 10<SP>m</SP> is subtracted (by addition of complements), change of sign is detected by unit 7 and the intermediate result in unit 6 is decremented until equal to the complement of 10<SP>m</SP>. The addition of 10<SP>m</SP> or its complement may be in parallel or serial mode.
Patent GB-891717-A (GB)
Title: Composite grating structure
Inventor: NAGIN HAROLD
IPC: E04C2/42
Filed: 1958-05-28
Abstract: The tread surface of a grating is formed of abrasive particles, such as alumina, silicon carbide or sand, embedded in a hardened epoxy resin which is filled into the trough-like tops of the cross-members of the grating.  For added resilience, natural or synthetic rubber may be added to the resin before it is cured.  In an example quoted, the mixture consists of 1 volume of epoxy resin, 10% by weight of a catalyst to cure the resin, e.g. diethylene triamine, and 10 volumes of sand, aluminium oxide, silicon carbide or crushed rock particles.
Patent GB-260651-A (GB)
Title: Improvements in or relating to a switch for the electrical circuits of wireless installations
IPC: H01H23/02
Filed: 1925-07-02
Abstract: 260,651. Cronyn, R. G. July 2, 1925. No Patent granted (Sealing fee not paid). Grounding aerials.-A tumbler switch, capable of assuming two positions in one of which two pairs of contacts 3<a>, 3<b> are connected together whilst in the other position another pair of terminals 3<c>, 3<a> are connected together, is arranged so that in the first position an aerial 17 connected to earth 19 and the circuits from high and low-tension batteries 21, 20 are both broken, and in the second position theaerial and earth are independently conected to a wireless set 16 and the battery circuits are completed.