baber/WOPTO huggingface dataset:
Patent GB-923812-A (GB)
Title: Improvements in or relating to breathing apparatus
Inventor: YOUNG DAVID HERBERT
IPC: A62B9/00
Filed: 1958-06-11
Abstract: 923,812. Respiratory apparatus. WALTER KIDDE CO. Ltd. Sept. 9, 1959 [June 11, 1958], No. 18637/58. Class 81 (2).  Respiratory apparatus in which the wearer is supplied with air or oxygen from a cylinder includes a pressure-operated switch, which actuates an alarm circuit including an audible alarm when the supply pressure falls below a predetermined minimum, and a manually operable switch for de-energizing the alarm. A spring-loaded member 24 is carried by a pointer 20 which is associated with a gear quadrant 23 of an instrument (not shown) which is responsive to changes in pressure in the gas supply. An arm 27 is manually rotatable about the axis of the pointer and carries two resilient contacts 25, 26 connected with a buzzer (not shown) and a rigid contact 28 connected to a horn (not shown). The pointer moves over a scale 29 indicating the pressure of gas in the supply cylinder and the arm 27 may be moved to a selected point on the scale below the pointer. When the pointer moves to that point due to the fall in supply pressure during use, the member 24 contacts one resilient contact 26 to cause the buzzer to operate which indicates to the wearer that the supply pressure has fallen to the value indicated by the lever 27. If the lever is not then reset further movement of the pointer causes the member to contact the rigid contact 28 so that the horn sounds. The lever may be set successively so that the buzzer and/or horn sounds when the supply pressure falls to 1/3, ¢ or “ the initial pressure of the supply. A pressure-operated switch (not shown) may be disposed in a circuit including the buzzer and the horn and a press button which permits the buzzer and horn to be operated at will for signalling purposes. A radio transmitter operable when the buzzer or horn sounds may be included in the circuit.
Patent GB-1163996-A (GB)
Title: Improved Apparatus for Checking the State of a Synchronous Machine
Inventor: BRABEC ZDENKO
IPC: H02J3/42
Filed: 1967-04-24
Abstract: 1,163,996. Control of A.C. motors. CKD PRAHA, OBOROVY PODNIK. 24 April, 1967 [26 April, 1966], No. 18672/67. Heading H2J. Correct starting operation of a synchronous machine is indicated by a unit BM when the rectified rotor voltage becomes equal to a standard voltage V. For further starting operation, the source U is shunted by contact B1, and capacitor C is charged through contact B2. When the machine approaches full speed, the voltage across the capacitor drops to zero and the indicator BM responds to apply excitation to the machine. After the machine has started, the indicator BM responds to an A.C. component in the rotor circuit, to switch off the machine when it operates asynchronously. The source U is connected in series with a protective device P, resistor R, and diode D. The contacts B1, B2 may be replaced by static switches.
Patent GB-108663-A (GB)
Title: Improvements in Artificial Legs.
IPC: A61F2/64
Filed: 1916-12-30
Abstract: 108,663. Soc. Anon. d'Appareils de Prothese. Aug. 8, 1916, [Convention date]. Limbs, artificial.-The spindle b of the kneejoint of an artificial leg passes through a bracket a which is adjusted by means of a fly-nut g bearing against an arched support d to take up wear or to vary the tightness of the joint
Patent GB-1466187-A (GB)
Title: Heat engine in the form of a pulse-jet
IPC: F02K7/00
Filed: 1974-04-29
Abstract: 1466187 Water pulse jet motors P R PAYNE 29 April 1974 [8 May 1973] 18703/74 Heading B7V A pulse jet motor comprises an elongate tubular member 16 which at one end is closed and has a heating means to heat this end and cause a working fluid, preferably water, to vaporize and reciprocate a liquid column of the fluid in the tubular member, the vapour condensing at the open end of the tubular member 16. The closed end of the tubular member 16 is surrounded by a material having a high specific heat and this material is jacketed by a material having a high conductivity. Trapped air or other gases may be bled from the closed end of the tubular member by a pressure relief valve (not shown) or by an internal axially extending tube leading to the open end of the tubular member. Deflectors (not shown) may be located adjacent the open end for manoeuvring purposes when the motor is propelling a boat. A cooling jacket (not shown) may surround the tube and be axially displaceable along it to control the "power output" of the motor. In marine applications means are provided to prevent water draining from the tubular member 16 should its open end emerge.
Patent GB-403452-A (GB)
Title: Improvements appertaining to let-off mechanism for looms
IPC: D03D49/06
Filed: 1932-07-02
Abstract: 403,452. Tensioning and letting-off warps in looms. SMITH, R. H., and SHACKLETON, G. W., Northbrook Works, Keighley, Yorkshire. July 2, 1932, No. 18717. [Class 142 (ii).] In a positive let-off motion wherein the effective stroke of the driving pawl is controlled by the warp tension, the back roller 7, Fig. 1, is freely mounted on a shaft 6 that is rigidly supported by two pivoted levers 4, the lower arcuate arms 4b of which are yieldingly connected to the framework of the loom. Each resilient connection comprises a spring 8a that is confined between a lug 9b on a lever 9 pivoted at b and a collar 9c on a rod 8 adjustably secured to the arm 4b. The warp is preferably passed over a roller 15 adjustably mounted in brackets 5 that support the levers 4. As the arms 4 oscillate with the varying tension of the warp, a lever 19 associated therewith raises or lowers a rod 20 which controls the receding movement of a pawl 21, the subsequent working stroke of the pawl to rotate the beam driving shaft 24 being effected by an oscillating lay member 28.
Patent GB-200355-A (GB)
Title: Automatic stop trap for colliery incline wagons
IPC: B61K7/16
Filed: 1922-07-25
Abstract: 200,355. Samuel, O. S., and Samuel, D. July 25, 1922. Stops.-In safety appliances for wagons used while ascending colliery inclines of the kind in which a slotted member linked to the vehicle falls into engagement with a fixed rack when the coupling breaks, the slotted member 3 is attached to an iron beam fixed either to the bottom or side of the wagon and the rack is arranged outside the track rails and connected to the adjacent rail by bolts 9. Projections 10 are formed on the rack teeth. The slotted member 3 has projections 11 to keep it on the rack and is pivoted to a rod 2 slidably mounted in a U-shaped member 1 and controlled by a spring 5. The arms of the member 1 extend on either side of the beam on the wagon and are attached thereto by a pin 13. A locking pin 14 is passed through the pin 13 and a, projection 12. The aperture 6 in the member 3 is provided with a hinged cover plate 7.
Patent GB-242353-A (GB)
Title: Improvements in or relating to electric resistance elements particularly for use with electric radiators
IPC: H05B3/16
Filed: 1924-08-07
Abstract: 242,353. Edinborough, P. M., and Metropolitan-Vickers Electrical Co., Ltd. Aug. 7, 1924. Wire resistances, cored.-Relates to heating resistances, particularly for radiant air heaters, of the type in which the resistance is mounted on a tubular refractory support 3; and consists in dispensing with the usual metal supporting rod and, instead, securing the support 3 to a distance-piece 2, on which it is mounted, by a wire or wires secured to the resistance piece and terminal block 1 and passing through the distance-piece. Two sets of wires may be provided, acting also as current leads, one set being secured to one terminal 4 and passing through holes 19 in the support 3, while the other set pass through holes at the other end of the support and are secured to the other terminal 5. The distance-piece 2 has three longitudinal holes aligned with others in the block 1, respectively housing the two sets of wires and a bolt 9 securing the distance piece to the terminal block. Relative rotation of these two members is prevented by projections 13, 14 on the distance-piece and corresponding recesses in the block. A wire guard may engage a screw thread 22 on the distance-piece.
Patent GB-372146-A (GB)
Title: Improvements in and connected with rotary stencil duplicating machines
IPC: B41L13/04
Filed: 1931-06-30
Abstract: 372,146. Delivery apparatus for rotary duplicators. POLLARD, W. E., of Roneo, Ltd., Hornchurch Road, Romford, Essex, and RONEO, Ltd., 5, Holborn, London. June 30, 1931, No. 18819. [Class 100 (i).] In rotary duplicating-machines combining printing from a stencil and a heading &c. typeplate, the strippers for stripping the printed sheets from the drum are lowered away from the type-plate at each revolution of the drum. As shown, a cam 7 is provided on each of a pair of bands by means of which a type plate 8 is mounted on a stencil drum A. At each rotation of the drum, the cams 7 engage rollers 6 on levers 4 fixed to a shaft 2 carrying a pair of strippers 1 which are thereby lowered into the position shown. To provide lateral adjustment, each stripper is carried by a slidable block la housing a spring clip 1b.
Patent GB-832219-A (GB)
Title: Improvements in or relating to carbon electrodes
IPC: C25B11/14
Filed: 1956-06-18
Abstract: Carbon electrodes for use in electrolytic cells for the production of chlorine from alkali metal chloride are impregnated with a polymerizable oil and polymerization of the oil is effected at an accelerated rate: (1) by subjecting the oil to X-rays or g -rays; (2) by including in the oil a mixture of a "surface" drier with a "through" drier and heating, or (3) by combining (1) and (2). Specified oils are linseed, tung, perilla, fish, safflower, soybean, oiticica, dehydrated castor, coconut, palm kernel, babassu, murumuru, palm, rape seed, mustard seed, olive, peanut, sesame, corn, cottonseed, sunflower, walnut, whale, menhadden, sardine, herring, or mixtures of such oils.  The "through" drier is one which produces uniform hardening throughout the oil, e.g. lead compounds, and the "surface" drier produces a pronounced hardening at the surface, e.g. cobalt compounds.  Preferably a mixture containing a major proportion surface drier and minor proportion through drier is used, e.g. 10 parts cobalt naphthenate and 1 part lead naphthenate. Impregnation may be effected by successive application of vacuum and pressure with immersion.  The polymerizable oil, particularly linseed oil, may be modified with fumaric acid.  The impregnated electrode may be contacted with superheated steam and where the driers mixture is used, heated, e.g. for 24 hours at 300 DEG  F.  The electrode may be graphitized and impregnated with pitch before impregnation. Specification 832,218 is referred to.
Patent GB-877552-A (GB)
Title: Substituted dihydrobenzothiadiazines
Filed: 1960-05-27
Abstract: The invention comprises compounds of the formula  <FORM:0877552/IV (b)/1> (wherein R1 is halogen, trifluoromethyl, nitro, C1-C7 alkyl or C1-C7 alkoxy, n is 0 or 1 and R2 is C3-C7 cycloalkyl, cyclopentenyl, cyclohexenyl or cycloheptenyl) and alkali metal salts thereof, and the preparation thereof by treating a compound of the formula <FORM:0877552/IV (b)/2> with an aldehyde of the formula R2(lower alkylene)nCHO and, if desired, converting the products into their alkali metal salts.  The products are saliuretics and diuretics. 1-Trifluoromethyl - 5 - amino-2,4-benzenedisulphonyl chloride is prepared by reacting m-amino-benzotrifluoride with chlorosulphonic acid.  5 - Substituted-2,4-disulphamyl-anilines are prepared by treating the corresponding disulphonyl chlorides with ammonia.
Patent GB-647320-A (GB)
Title: Improvements in or relating to the manufacture of crystalline sodium penicillin
IPC: C07D499/16
Filed: 1948-07-14
Abstract: Crystalline sodium penicillin is manufactured by adding, with agitation, a solid material consisting of or comprising mainly sodium penicillin to an organic solvent selected from monohydric aliphatic alcohols of 3-6 carbon atoms, acetone, methyl ethyl ketone, mixtures of these solvents, or mixtures thereof with aliphatic carboxylic esters, at a temperature not above about 70 DEG  C., thereafter bringing or keeping the temperature of the mixture within the range 40-70 DEG  C. and continuing agitation while crystallization of the sodium penicillin takes place, and finally separating the crystalline sodium penicillin.  Preferably the solution temperature is within the range 40-70 DEG  C. and the crystallization temperature within the range 40-60 DEG  C., the latter being advantageously at least as high as the former. Preferred solvents (which are desirably substantially anhydrous) are acetone, n- and isopropanol, n-butanol, fermentation amyl alcohol, n-hexanol, n-butanol/ethyl acetate, acetone/ethyl acetate and n-butanol/butyl acetate.  The solid sodium penicillin used may be amorphous material obtained by freeze drying or spray drying aqueous solutions thereof, preferably of a potency of at least 800 units per mg., and the ratio thereof to the solvent may be between about 2 : 10 and 7 : 10 (preferably about 4 : 10) by weight. When the ratio is between 4 : 10 and 7 : 10, it is desirable to dilute the mixture after crystallization with sufficient solvent to bring the ratio below 4 : 10.  The crystals of sodium penicillin may be separated (e.g. by filtering or centrifuging) after or preferably without cooling, and may then be washed and, if desired, recrystallized, e.g. by dissolving in aqueous n-butanol and then adding sufficient dry n-butanol (preferably in two or more stages at about 0 DEG  C.) to bring the concentration thereof to 95-99 per cent (but preferably not above 97 per cent) by volume, or by dissolving in aqueous acetone and adding dry acetone until the concentration thereof approaches or attains 99 per cent by volume.  Examples illustrate various features of the invention.
Patent GB-438738-A (GB)
Title: Improvements in the manufacture of pneumatic tyre covers and apparatus therefor
IPC: B29D30/34
Filed: 1934-06-27
Abstract: 438,738. Tyre - building machines. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London.-(Soc. Anon. Pneumatiques Dunlop; 64, Rue de Lisbonne, Paris) June 27, 1934, No. 18939. [Class 144 (i)] In apparatus for building-up a tyre casing. by winding a strip 5 of fabric about a pair of endless wires 3 travelling around drums 1, 2, the wires are held spaced at the winding zone by a pair of profiled rollers 7. As shown, the rollers are mounted on a bracket 8 projecting from the support 6 for the fabric spool 4.
Patent GB-353201-A (GB)
Title: Improvements in or relating to hoods for golf bags
IPC: A63B55/00
Filed: 1930-06-21
Abstract: 353,201. Golf bags. RADFORD, A., 8, Church Street, Altrincham, Cheshire. June 21, 1930, No. 18964. [Class 132 (ii).] A golf-bag hood of the kind that is detachably secured to the bag by a draw member, is provided with a gusset at or near the hood opening, whereby the range of sizes of bags to which the hood may be applied is increased and the application of the hood to the bag is facilitated. As shown in Figs. 1 and 3, a hood 1 is secured to the mouth of a golf bag by a strap 6 disposed within a running hem 2 at the lower edge of the hood. The buckle 7 of the strap is situated in a cut-out part 3 of the hood having reinforced edges 4 and surmounted by a triangular gusset 5. Diametrically opposite the buckle, a hook 9 riveted to the hood clips over the usual ring 12 of the bag and is covered by a flexible flap 11. The hem 2 may be replaced by spaced loops and a plurality of hooks 9 may be provided. In a modification, Fig. 6, the lower edge of a hood 14 is attached to an arcuate, spring-metal strip 15 adapted to engage within the mouths of bags of different sizes. Hooks 16 attached to the strip 15 pass over the ring of the bag and terminate in loops 17 for the reception of a strap 18.
Patent GB-1463959-A (GB)
Title: Processing of flexible film tubing
IPC: A22C13/02
Filed: 1975-05-07
Abstract: 1463959 Shirred sausage casing UNION CARBIDE CORP 7 May 1975 [8 May 1974] 19067/75 Heading A2B [Also in Division F2] Flexible film tubing (e.g. sausage skins made of collagen) is shirred using apparatus including means for continuously inflating the tubing, means for continuously advancing the tubing from a first to a second zone, a preselected inflation gas pressure differential being maintained between the first and second zones by a pair of nip rolls in contact with the advancing tubing, at least one roll of each pair having alternate lands and grooves formed transversely on its circumferential surface, and means to vary the contact pressure on the tubing. The surface of at least one roll of the pair may be resilient. The shirring apparatus may be of conventional construction. As shown (Fig. 1) a collagen casing 19 is advanced from a dryer 11 to a pressure regulating station 13, a metering roll assembly 15 to a shirring station 17. The casing leaves the dryer at a low inflation gas pressure and passes to a high inflation gas pressure zone. The inflation gas is supplied to the shirring mandrel 21 by means of periodically applied inflator blocks 23 connected to an air source 25. Between sequential introductions of air to the mandrel 21 the inflator blocks 23 retract clear of the surface of the mandrel to permit the shirred casing to pass along the mandrel. The metering roll assembly 15 feeds the casing at a controllable speed into the shirring head 27. In order to prevent the nip of the rolls stopping inflation air from leaving the tip of the mandrel, one of the metering rolls is provided with a circumferential groove 59.
Patent GB-222996-A (GB)
Title: Improvements in apparatus for moistening the air in rooms
IPC: F24F6/04
Filed: 1923-07-25
Abstract: 222,996. Holt, H. E. S. July 25, 1923. Vaporizing by heat.-Apparatus for moistening air in rooms comprises an evaporator d, adapted to extend across the front of and to derive heat from a fire, supplied with water from a container a and provided with a distributing tube j having a perforated top. The water container a is inverted and rests in a receptacle, b, the water, which is maintained at constant level on the bird fountain principle, flowing through an aperture c to the receptacle b and evaporator d connected thereto by a socket member e. The evaporator comprises a casing d containing a fire-resisting filling or a metal tube g closed at its outer end and perforated at its lower part h and wrapped with asbestos i, wire gauze, &c. The distributing tube j is screwed into the socket member e, which may also be provided with a receptacle e<1> to receive any surplus water which may flow into the evaporator when the vessel a is first positioned. A small chamber k containing a perforated tray l for holding a disinfectant, germicide or perfume may surround the top of the tube j, the chamber being fitted with a perforated cap.
Patent GB-147094-A (GB)
Title: An improvement in the manufacture of sulphuric acid
IPC: C01B17/84
Filed: 1920-07-07
Abstract: Oxides of nitrogen obtained by the dry distillation of calcium nitrate are used in the manufacture of sulphuric acid.  The distillation may be performed in the furnace containing the sulphur bearing material so that when the latter is ignited the heat of the reaction is utilised to decompose the nitrate.  By thus subjecting the two raw materials to the same conditions of temperature and draught, the formation of the nitrogen oxides is controlled by the production of the sulphur dioxide.  When the calcium nitrate is distilled alone, lime is obtained as a residue.
Patent GB-147105-A (GB)
Title: A balanced elastic suspension for vehicle axles
IPC: B60G11/04
Filed: 1920-07-07
Abstract: 147,105. Gauthier, E. J. L. July 10, 1914, [Convention date]. Springs, arrangement of.-A balanced elastic suspension for the axles of motor and other vehicles comprises a frame or lever e, Fig. 1, adapted to oscillate around an axis carried by a bracket b fixed to the chassis a, the displacement of the frame e being resisted by an arrangement of laminated springs c, c<1>, d, d' the extremities of which are provided with rollers i, i<1>, j, j<1> bearing against the frame. The springs are secured to the bracket b and the rollers roll in grooves k, k<1>, l, l<1> in the frame, which is secured to the axle h of the wheels g and oscillates on a sleeve f, Fig. 4, fitted into a bore in the bracket b, there being some friction between the frame and the lateral faces t, t<1> of the bracket. The arrangement is shown applied to a front axle, but may be applied to a rear axle driven by a cardan shaft or by a chain, the chain wheel being concentric with the axis of the frame and a chain tightening device being provided. To reduce the wheel base, the axle may be attached to the frame between the points of support of the springs.
Patent GB-792874-A (GB)
Title: Linear polymers and copolymers containing methylol ether groups
IPC: C08F8/00
Filed: 1955-07-01
Abstract: Linear polymers or copolymers of ethylenically unsaturated monomers containing the group <FORM:0792874/IV (a)/1> where R1 is hydrogen or an alkyl radical and R2 an alkyl radical are made by polymerizing the monomer alone or with one or more other ethylenically unsaturated monomers in neutral or alkaline media at a temperature below 60 DEG C.  Suitable monomers are the alkyl ethers of the methylol compounds of sorbic acid amide, the diamides of muconic acid and fumaric acid, acrylamide and methacrylamide, e.g. N-methylolmethylether-acrylamide and methacrylamide, and the alkyl ethers of the methylol compounds of unsaturated urethanes such as allyl urethane.  Polymerization is preferably effected in aqueous emulsion in the presence of a catalyst, e.g. a redox system, and if desired a chain-terminator. Other monomers mentioned are butadiene, styrene, acrylonitrile, methacrylonitrile, acrylates, methacrylates, acrylic and methacrylic acid amides, vinyl chloride, vinylidene chloride, organic vinyl esters and mixtures.  The emulsifier may be the sodium salt of the sulphonic acid of long-chain paraffins having 10-20 carbon atoms in the molecule and the catalyst potassium persulphate mixed with formaldehyde or triethanolamine.  The polymers may be cross-linked (1) by heating to 100-200 DEG  C. in the presence, if desired, of organic or inorganic acids such as sulphuric, hydrochloric, phosphoric, acetic, trichloracetic, and p-toluenesulphonic acid, or (2) by reacting the polymers with water-soluble condensates of phenols, ureas, dicyandiamides or sulphonamides with aldehydes such as formaldehyde.  The polymers may be made into moulded articles, or used as coatings or electrical insulation.  Specification 780,284, [Group IV (b)], is referred to.
Patent GB-770199-A (GB)
Title: Improvements in mounting arrangements for electrical components
Inventor: HUGHES EDWARD
IPC: H05K7/14
Filed: 1954-07-01
Abstract: 770,199. Two-part couplings. AUTOMATIC TELEPHONES & ELECTRIC CO., Ltd. June 13, 1955 [July 1, 1954], No. 19276/54. Addition to 737,160, [Group XXXIX]. Class 38 (1). [Also in Group XXXIX] In order to facilitate removal of the carriage assembly in the component mounting arrangement of the parent Specification, cable form 20 from the assembly equipment is terminated on tags 38 of a socket 36 on the rear of the mounting panel 22 and the socket is arranged to be detached from the panel by removing screws 40 so that it may be passed through slot 27 in the panel. Plug 42 on which the external cables are terminated is aligned with respect to the socket by the projecting ends 49<SP>1</SP> of the handle 47, and a guide rod 50 engaging slots 41<SP>1</SP>, and hole 51, respectively in the socket block. Panel 22 may carry similar equipment adjacent the assembly shown to which plug 42 may be transferred in the event of an apparatus fault. A web 26 is provided to strengthen the cradle and tags 39 and 45 are provided for permanent strapping. Specification 737,095 is referred to.