baber/WOPTO huggingface dataset:
Patent GB-223621-A (GB)
Title: Improvements in and relating to tanning
IPC: C14C3/30
Filed: 1923-04-27
Abstract: 223,621. Nance, C. W. April 27, 1923. Tanning and treating in vacuo; tanning under pressure.-Hides are tanned by treating them first with a tanning liquor which is made to boil continuously at a low pressure, and subsequently with a hot tanning liquor which is made to exert pressure on the hides, for example by thermal expansion. The hides are suspended in the liquor in an autoclave in which a high vacuum is produced, and the desired temperature of 90‹ F. is preferably maintained by allowing a little hot air, from which all oxygen has been removed, to enter the autoclave to agitate the hides and prevent the tannin from settling. These conditions operate for 6-8 hours. The autoclave is then completely filled with fresh air-free liquor and sealed. The liquor is heated so that, by thermal expansion, it exerts pressure on the hides, a temperature of 100‹ F. and a pressure of 50 lb. to the square inch being suitable. This procedure occupies 6-8 hours and is repeated, if necessary, until the hides are thoroughly tanned. The leather is then washed by covering it with water, producing a high vacuum in the autoclave, and allowing a little air to bubble through. Finally the leather is dried by subjecting it to a, high vacuum and allowing a little hot air, from which oxygen has been removed, to enter the autoclave. The process may be modified by omitting the preliminary treatment in vacuo, and by obtaining the desired pressure by pumping in hot air-free liquor.
Patent GB-894015-A (GB)
Title: Squeezer for squeezing out textiles in the hank
IPC: D06B15/02
Filed: 1959-04-03
Abstract: A squeezer having two or more rollers for mangling textiles in the hank is characterized in that at least one roller has a pneumatically inflatable elastomeric cover or tube in the form of a tyre.  The pneumatic roller may conprise a cover and tube or a tube alone or an inflatable tubeless construction similar to that used on the rims of motor vehicles.  The pneumatic roller may have a smooth or a patterned outer surface.  If desired the space for inflation may contain a resilient foam substance.  The cover or tube is preferably resistant to acids and alkalis.  Specification 719,289 is referred to.
Patent GB-113746-A (GB)
IPC: G04B37/14
Abstract: 113,746. Wachter, L. E. F. Aug. 25, 1917. Bows; cases, watch.-Consists of a prop hinged on the bow or on a collar fitting on the bow or on lugs on the case close to the bow. Given the form of a disk or network it serves as a protecting cover for the glass. Fig. 3 shows a typical form of the prop, and Fig. 2 its application. Fig. 5 shows the holes in the ears J replaced by hollow pivots entering the body E of the pendant and receiving the ends of the bow F. The end K of the prop may, as shown in Fig. 9, be hinged to the main portion H and have an eye L to engage a lug L<1> on the caseband A. Or, as in Fig. 10, it may fork into branches h integral with or pivoted to the main portion. The whole prop may take the form of a ring encircling the band or, as in Fig. 16, it may be a loop of wire with lateral kinks M; the end m springs into a slight recess in the band A, but pressure on the kinks releases the prop for use. The prop may be hinged to a collar Q, as shown in Fig. 14, below the bow, and have a screw adjustment P. Or where there is no bow, as shown in Fig. 17, it is hinged to a collar S to be slipped on the pendant after removal of the winding knob. Fig. 29 shows the prop as a ring X carrying a dome X<1> or disk; the collar S can be turned on the pendant so that the prop can be shut down on the glass C. Fig. 20 shows the ear J hooked upon lugs D' soldered to the pendant. In Fig. 25, the bow F is shown with spines f<2>, and the ears J<2> cupped to fit. In Fig. 21 the bow is shown engaging lugs T on the casing. In Fig. 24 the ears of the prop H are shown formed as snap hooke X. In Fig. 22 the prop is shown telescopic with enclosed springs; in Fig. 23 as divided by a spring.
Patent GB-1211849-A (GB)
Title: Improvements in and relating to heat treatment of aluminium foil
Inventor: FIELD LEONARD EDWARD
IPC: C21D9/62
Filed: 1967-03-10
Abstract: 1,211,849. Drying or curing coated foil. ALUMINIUM FOILS Ltd. 8 March, 1968 [10 March, 1967], No. 11406/67. Heading F4G. [Also in Divisions C7 and H5] A process of heat treating aluminium foil (e.g. an annealing process or a process for drying or curing coatings such as epoxy resins, inks or adhesives on the foil) comprises passing the foil in electrical contact with a set of three or four spaced electrically conducting rollers while a heating current is passed, in the case of three rollers, between the intermediate roller and each of the two outer rollers and, in the case of four rollers, between each of the two intermediate rollers and its corresponding outer roller, the relative positions of the rollers being adjustable so that the paths of the foil, in the case of three rollers, between the intermediate roller and each outer roller and, in the case of four rollers, between each intermediate roller and its corresponding outer roller can be varied to adjust the resistances and therefore the temperatures in the two lengths of foil through which current passes.- In Fig. 2, the foil 1 is conveyed over electrically conducting rollers 1a, 1b, 2a, 2b, the rollers being connected to the secondary winding 4 of transformer 5. Rollers 1a, 1b are adjustable laterally and are earthed. The rollers may comprise aluminium shells with steel inserts at each end.
Patent GB-1222541-A (GB)
Title: Hydraulic chain-tensioner
Inventor: KORMENDY MILTIADES
IPC: E21C29/14
Filed: 1968-03-08
Abstract: 1,222,541. Chain tensioners. COAL INDUSTRY (PATENTS) Ltd. 6 May, 1969 [8 March, 1968], No. 11487/68. Heading F2G. An hydraulic chain tensioner comprises a cylinder part and an effective piston part relatively movable longitudinally within the cylinder part, one part being connected to a chain and the other to an anchorage, one part being automatically hydraulically connectible to a relief valve when the effective piston part is within a predetermined portion of its stroke. In a preferred embodiment, the hydraulic chain tensioner comprises a piston and cylinder assembly 12, with the cylinder 60 fixed and the piston 70 connected to a sprocket 20, carrying a chain 24 anchored at one end 32, so that fluid pressure in the cylinder causes the piston to tension the chain; a relief valve 40 is connected to the cylinder and controlled by the positioning of the piston so that the pressure in the cylinder is lower when the piston extends further than a predetermined position, than when the piston is within this position inside the cylinder. An hydraulic chain tensioner is anchored at each end of a coal face, and the chain 24 is pretensioned by fluid at 1500 p.s.i., passing through an inlet valve (100), Fig. 4 (not shown), to the cylinder 60. When a coal-cutter machine, having a haulage sprocket engaging the chain 24, begins operation, tension in the chain forward of the coal-cutter increases to about 15 tons, and is accommodated by the resulting inward thrust of the piston 70 causing a build-up of pressure in the cylinder 60 to a maximum of 6000 p.s.i., limited by a relief valve 42; tension in the chain behind the coalcutter tends to drop to zero, but is prevented by the outward movement of the piston 70, in the other tensioner, and also the extension of a further piston 78 inside the piston 70. The relief valve 40, in the other tensioner, is opened when the piston 70 passes a predetermined position, and the pressure in the cylinder 60 decreases so as to exert a low tension on the chain 24 of about 3 tons. Operation of the relief valve 40 may be by the uncovering of a part, connecting the valve to the cylinder 60, by the piston 70, or by the piston 78 and sprocket 20 assembly operating a trip lever (160), Fig. 5 (not shown), and a cam. If the chain 24 jams in the haulage sprocket of the coal-cutter, the forward part of the chain can be de-tensioned by an outlet valve (104), Fig. 4 (not shown), opened to allow the fluid in the cylinder 60 to drain out, thus retracting the piston 70. The hydraulic chain tensioner may comprise two parallel piston-andcylinder assemblies 12, and also the assembly 12 may comprise only a single stage piston-andcylinder.
Patent GB-115226-A (GB)
IPC: H02P9/24
Abstract: 115,226. Bethenod, J. April 24, 1917, [Convention date]. Regulation, automatic systems and apparatus for.-In voltage or current regulators for dynamo-electric machines in which a resistance 5 is periodically introduced into the shunt field circuit, the regulator, in addition to the normal sensitive coil 6, has a coil 7 in series with the shunt field 2 and assisting the coil 6. When the contacts 3 open, the weakened effect of the coil 7 due to the insertion of the resistance permits rapid return of the vibrating blade.
Patent GB-215782-A (GB)
IPC: F01D5/28
Filed: 1924-05-09
Abstract: Vat-dyestuffs are produced by the action of alkaline condensing agents such as caustic alkali, upon nitrogen-containing compounds obtainable by action of nitrating agents on 2 : 21-dibenzanthronyl. According to an example a product dyeing cotton in grey-blue to black shades from a claret-red hydrosulphite vat is prepared by fusing nitro-2 : 21-dibenzanthronyl with caustic potash and alcohol at 225-230 DEG  C., dissolving the mass in water, blowing in air, and acidifying.  Nitro-2 : 21-dibenzanthronyl, probably a mixture of isomerides, is obtained by dissolving 2 : 21-dibenzanthronyl in sulphuric acid and adding nitric acid or a nitrate; it dissolves in alkaline hydrosulphite.
Patent GB-352541-A (GB)
Title: Improvements in or relating to the manufacture of cigarette paper
Filed: 1930-04-11
Abstract: 352,541. Cigarette paper. SEFERIADIS, B., 8, Avenue Lavoisier, Maisons Laffitte, Seine-et-Oise, France, and S. C. PATENTS, Ltd., Pinners Hall. Austin Friars, London. April 11, 1930, No. 11582. Addition to 325,125, [Class 96, Paper &c.]. [Class 96.] In the manufacture of cigarette paper according to the process described in the parent Specification, the glucosides-and-resinols precipitate used therein may be an extraction from any gum or resin gum, natural or synthetic, by macerating in alcohol, acetone, or other liquid hydrocarbons, or mixtures thereof, the precipitation being effected by calcium carbonate.
Patent GB-786660-A (GB)
Title: Improvements relating to the carbonisation of coal and the like materials in vertical retorts
Inventor: HODKINSON WILLIAM
IPC: C10B49/02
Filed: 1955-04-22
Abstract: 786,660. Carbonizing coal. NORTH WESTERN GAS BOARD. April 13, 1956 [April 22, 1955], No. 11659/55. Class 55 (1). In carbonizing coal in an externally heated vertical retort a combustible gas, e.g. producer gas or water gas, and air or oxygen are admitted to the retort so that they rest in and are combusted in the retort to supply some of the heat for the carbonization.
Patent GB-830419-A (GB)
Title: Process for the production of hydroxylamine sulphate solutions
Inventor: SCHAFFLER ALFRED
IPC: C01B21/14
Filed: 1956-04-17
Abstract: <PICT:0830419/III/1> A continuous process for the production of hydroxylamine sulphate by hydrolysis of aqueous solutions of salts of hydroxylamine disulphonic acid in which the hydrolysis reaction is maintained, without the supply of any additional energy for heating and cooling, by transferring heat liberated in the hydrolysis reaction to the aqueous solution of salts of hydroxylamine disulphonic acid to be hydrolysed, by passing the hydrolysed solution leaving the hydrolysis vessel in heat exchange in an acid-proof heat-exchanger, with the aqueous hydroxylamine disulphonate solution entering.  An aqueous solution of an alkali metal or ammonium hydroxylamine disulphonate is pumped by 2 from acid-proof lined tank 1 through heat-exchanger 3 made of graphite impregnated and bonded with synthetic resin and steam heater 4 of the same material to acid-proof lined hydrolysation container 5.  The hydrolysed solution flows back through exchanger 3 to acid-proof lined collecting tank 6. When the heat transfer in exchanger 3 is sufficient to maintain the hydrolysis, the heater 4 is by-passed by adjusting valve 8, 9.  The container 5 should be large enough to give sufficient residence time for hydrolysis.  The piping may be porcelain and polyvinyl chloride. Cooler 7 of the same material as exchanger 3 is provided to cooled solution withdrawn on shut-down.
Patent GB-313698-A (GB)
Title: Improvements relating to knobs or handles
IPC: E05B1/00
Filed: 1928-04-21
Abstract: 313,698. Horner, Ltd., C., and Horner, H. M. April 21, 1928. Knobs.-A knob or handle for oven doors or other hot objects is made of a synthetic resin or other material capable of withstanding a high temperature and of good heat-insulating properties, this being mounted on a metallic core from which it is. separated by a layer of asbestos or other thermally-insulating material so arranged also as to insulate the knob thermally from the article to which it is attached. In the form shown, the knob proper A is made of a material tightly moulded on an asbestos sleeve C which surrounds the knurled part b' of the screwed core b. The knob is secured to the door &c. by a nut on the part b and with a heat-insulating washer between the end of the knob and the surface of the door.
Patent GB-374211-A (GB)
Title: Improvements in twisting machines
IPC: D01H1/00
Filed: 1931-04-21
Abstract: 374,211. Twisting-machines. LISTER & CO., Ltd. and WATSON, W. H., Manning- ham Mills, Bradford, Yorkshire. April 21, 1931, No. 11804. [Class 120 (ii).] In a twisting machine of the cap, ring, or flyer type having open-ended upper and lower feed rollers and spindle braking means, the elevation of the upper feed roller disconnects the lower feed roller from its drive and simultaneously arrests the motion all the elements composing a spindle unit so that the yarn may be set up on each unit correctly as regards tension, nip and wrapping with the feed rollers and spindles stationary. In each spindle unit yarn passes from a rear spindle 1, between feed rollers 26, 15, around a traverse guide (not shown), and around the lower feed roller 15 to a front lower spindle 2, a beam 11 carrying a bracket 12 for each unit which is driven from a common shaft 20 through a worm wheel 16. The worm wheel 16 is loosely mounted on an arbor 14 to which it can be operatively connected by a clutch having one member integral with the wheel and the other secured to the arbor. The arbor carries the lower feed roll 15 and is slidable in a housing 13 in the bracket 12. The lower feed roll 15 drives the upper feed roller 26 which is mounted in one arm 28 of a bell-crank lever pivoted to the bracket 12 at 29, providing by its second arm a handle 31. A rearward extension 54 of the lever engages a bent arm 50 carrying an adjustable stop 41 adapted to contact with a brake 38 for the spindle 1 and a stud 45 on the arm 28 is connected to a brake 42 for the spindle 2. In operation, raising the arm 28 by the handle 31 lifts the upper feed roll clear of the lower one and applies the brakes to the spindles, a stud 59 on the arm 28 simultaneously engaging a bent arm 58 pivoted at 56 to the bracket 12 and adapted to engage the rear face of the lower feed roll 15 to move the arbor 14 and free the clutch 22, 24. A trigger 32 on the handle 31 engages one or other side of a stop 35 fixed on the pivot 29 to lock the lever in either the operative or inoperative positions, thus leaving the operative with both hands free. The feed rollers may be disposed normal to or at an angle to the beam 11 or parallel with it.
Patent GB-1140741-A (GB)
Title: Rapid developing photographic materials
IPC: G03C1/42
Filed: 1966-03-17
Abstract: 1,140,741. Developing photographic silver halide materials. FUJI SHASHIN FILM K. K. March 17, 1966 [March 24, 1965], No. 11811/66. Heading G2C. A photographic light-sensitive material having a silver halide emulsion layer containing a developing agent is exposed and developed by treatment with an alkaline activator solution in the presence of arginine or a salt thereof, such as arginine hydrochloride. The compound may be present in the silver halide emulsion, in an adjacent colloid layer or in the alkaline activator solution. Developing agents specified are hydroquinone, p-methylaminophenol sulphate, catechol and 1-phenyl-3- pyrazolidone and mixtures thereof. Examples are given, in one of which an emulsion to which hydroquinone and arginine hydrochloride have been added is developed with an activator solution containing 1:1 -dimethyl-biguanide hydrochloride.
Patent GB-247902-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
IPC: G10K13/00
Filed: 1925-05-09
Abstract: 247,902. Ira Internationaler Radio- Vertrieb Ges., (Assignees of Wolff, K.). Feb. 23, 1925, [Convention date]. Sound magnifying and directing appliances.- A freely-oscillating body 3 which may be a hollow cone is rigidly attached to a sounding board 5 and is disposed in proximity to the diaphragm of a soundreproducing apparatus. The body 3 may be placed in or close to the neck 2 of the usual horn 1 which may have a front wall 6 forming with the board 5 a resonating chamber 7.
Patent GB-125295-A (GB)
Title: Improvements in Current Water Wheels.
Inventor: NORTH WILLIAM
IPC: F03B17/06
Filed: 1918-07-25
Abstract: 125,295. North, W. July 25, 1918. Current motors. -A water-wheel having a vertical shaft g, spokes c, and rims a, b, carries pivoted blades f adapted to be swung against stops i when moving with the current and to be swung into the inoperative position when moving against the current. Projecting strips on the blades may be used as stops instead of the members i. Reference has been directed by the Comptroller to Specification 16099/98.
Patent GB-571053-A (GB)
Title: Improvements in or relating to apparatus for actuating the conical control valves ofconical air-locks at the entrance and exit of treating devices for granular heaped materials
IPC: F26B5/04
Filed: 1943-07-26
Abstract: 571,053. Drying systems; charging devices. FORTER, M. July 26, 1943, No. 12126. [Class 34 (ii] [Also in Groups XXX and XXXV] A segment 13, closing the outlet to a supply hopper 44 and valves 4, 5 of an air lock entry to a treating or vacuum drying chamber 1 are operated in suitable timed relation by cams driven by a single electric compound wound motor 18. Similarly, closure members 31 of the outlets from the chamber 1 and air lock valves 23, 24 are driven from another such motor 36. A member 43, fulcrumed at 43a has a counter-balance 45 and operates regulating resistance 3, 21, 39 in accordance with the amount of material in the hopper 44. These resistances are in the shunt field circuits of the motors 18, 36 respectively, and the speed of the drives for the inlet and outlet valves is accordingly increased as the level in the hopper increases and vice versÔ. The relation between the inlet and outlet valves is adjustably determined by the relative positions of the couplings of the resistance levers 40, 41 to the rod 42. The supply circuit to both motors is interrupted to stop the valves by a spring 51 which opens a switch 50 when a coil 49 is de-energized by the opening of a switch 48 coupled to the member 43 this occurs when the hopper 44 is empty. The motor 18 is disconnected by the de-energization of a coil 56 through a switch 55 when the treatment chamber 1 is full.
Patent GB-140643-A (GB)
Title: Improvements in or relating to brake beams for railway and like vehicles
IPC: B61H13/36
Filed: 1919-05-15
Abstract: 140,643. Pettigrew, J., and Monarch Door Controller Co. May 15, 1919. Brake beams; blocks and shoes.-Brake-block pivot pins d are carried by brackets c secured tu the ends of the beam so that the pins are at a distance from, and parallel with, the ends of the beam and are readily detachable from the brackets. The pins d have nuts d<1>, k locked by lugs on the arms c<2> or by washers g, and may also be prevented from turning. The bracket c may also secure the ends of the tension and compression members b, a together, Fig. 1; or separate brackets o, Fig. 6, may be used. The connecting-device m, Fig. 3, may be formed from a flat metal bar and provided with holes n for the brake rigging. The brackets and pins may be applied to integral beams.
Patent GB-310190-A (GB)
Title: Improvements in ball controlled float valves
IPC: F16K31/26
Filed: 1928-04-28
Abstract: 310,190. Edwards, L. April 28, 1928. Ball and float valves, - In a ball- and float valve for water flushing cisterns comprising a sliding plunger 2 connected to the float lever 3 by a screwed adjusting-pin 7 providing for different water levels, the aforesaid connection is made in the form of a. ball head 8 of the screw which engages in a vertical cylindrical groove 10 in the end of the plunger with a combined pivotal and sliding movement. The upstanding lug 12 of the float lever engages a groove 13 in the plunger to prevent its rotation.
Patent GB-528001-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23D11/10
Filed: 1939-04-25
Abstract: 528,001. Liquid fuel burning apparatus. MARMOREK, H. V. April 25, 1939, No. 12452. [Classes 75 (i) and 75 (iii)] [Also in Group XXVIII] An oil burning plant comprises a fuel reservoir 22 supplied with compressed air through a pipe 25 and connected by pipes 10, 19 opening into the reservoir 22 above and below the fuel level respectively to the coaxial air and fuel nozzles, 8, 11 of the burner 4. The fuel nozzle 11 is fitted with an adjustable needle valve 16. A central member 20 threaded on the near end of the air nozzle 8 engages a thrust collar 21 on the fuel nozzle 11 and displaces the fuel nozzle to regulate the air discharge orifice. The fuel nozzle is formed with a slot 15 engaging a guide pin 14. The burner is fixed in a tube 5 opening into the furnace and formed with an ignition port 7A. The pressure in the reservoir 22 may be controlled by varying the speed of the electric motor 37 driving the air pump by a throttle valve in the pipe 25, or by an escape valve 41 on the reservoir. The valve 41 is preferably of the balanced type and may be thermostatically controlled. The air pump is preferably of the diaphragm type and may be operated by a vertically-guided rod 38 connected by a rod 34A to a crank 35 on the motor. Alternatively the rubber diaphragm 29, Fig. 3, may be moved relatively to a fixed plate 26 carrying a delivery valve 27 and a suction valve 28 by a pivoted lever 32 connected by a rod 34 to the crank 35. A rigid plate 36 supports the diaphragm at the end of the compression stroke.
Patent GB-128669-A (GB)
Title: Improvements relating to Parachutes.
Inventor: CALTHROP EVERARD RICHARD
IPC: B64D17/52
Filed: 1917-08-30
Abstract: 128,669. Calthrop, E. R. Aug. 30, 1917. Addition to 117,092. Parachutes. - Means for increasing or decreasing the amount of opening of a parachute, so as to vary the speed of descent, comprise a series of cords 4, Figs, 1 and 2, passed through groups of eyelets 1 at the mouth of the parachute and connected at their ends to cords 6 attached to a cord 8 leading to the pilot. In a modification, the cords 4 are connected to slip-rings adapted to be drawn together by a pull on the pilot's cord. The cord 8 may be connected to one end, and the suspension cord 18 to the other end, of a frame 20, Fig. 6, provided with a carriage 23 connected to the main suspension cord 18<1> so that by moving the carriage to one end or the other of the frame 20, the pilot may bring 'his weight to bear on either of the cords 8, 18. The carriage 23 is actuated by means of a handle 24 and rack-and-pinion gear 21, 22. The actuation of the parachute may be effected bv clock-work or other automatic mechanism, and the cords may be wound upon a drum or other means.