baber/WOPTO huggingface dataset:
Patent GB-677530-A (GB)
Title: Improvements in or relating to machines suitable for performing sewing operations on parts of mattresses
IPC: D05B11/00
Filed: 1949-06-18
Abstract: 677,530. Sewing-machines. SUMMERTON, T. F. Sept. 1, 1950 [June 18, 1949], No. 16261/49. Class 112. [Also in Group XXVI] Feed by moving machines and by rollers.-In a machine for sewing together two strips of material with interposed padding to form the edge wall of a spring mattress, in which the work is fed through the machine while a sewing apparatus moves relatively to it so that a zig-zag or wavy line of stitching is produced, the sewing apparatus is mounted on a separate moving base, so that a sewing machine of substantially standard form may be used, and the base is carried on rails by pairs of wheels engaging above and below the rails to prevent derailment. In the form shown a sewing-machine 4, of standard form apart from the method of drive described below, is secured to a horseshoe-shaped base 17 provided with grooved wheels 18 running on rails 19 and with rollers 22 engaging the underside of the rails; the spindles of the wheels 18 and rollers 22 are carried eccentrically by studs fixed in lugs on the base 17 so that they can be made to fit the rails closely and so that the height of the sewing-machine can be adjusted to ensure proper meshing of a gear carried by the machine with a driving-gear carried by the base 17, the gears being arranged as described below. The rails 19 are fixed on a carriage 10 which is mounted by wheels 11 on rails 12 on the frame 1 of the whole machine, so that the sewing- machine can be moved universally relatively to the frame 1 by linkages connected respectively to the base 17 and the carriage 10 and actuated by upper and lower tracks in a cam 15 driven through worm gear from the main shaft 2. The three strips of material to be joined pass to the machine 4 from reels 8 between a pair of rollers 5, and are fed by a similar pair of rollers 3 of which the lower one is actuated intermittently through roller ratchet gear 42 by a pitman 46 from a variable eccentric (see Group XXVI) on the shaft 2. The upper and lower shafts of the sewing-machine 4 are connected by bevel gears to a vertical shaft which extends below the machine to be driven by bevel gearing from a shaft carried by the base 17 parallel to the machine shafts; the base shaft is driven by spur-gearing from a shaft on the carriage 10, one of the gears being long enough to accommodate the relative movement of the base and the carriage, and the carriage shaft is similarly connected to the shaft 2 by bevel gearing and spur gearing providing for the relative movement of the carriage 10 and the frame 1. Driving by hand-gearing.-The shaft 2 is provided with a hand-wheel 63 embodying a ratchet device so that it can actuate the shaft only in the proper direction.
Patent GB-181710-A (GB)
Title: Improvements in ratchet or free-wheel transmission mechanism for automobiles
IPC: F16D41/22
Filed: 1922-06-12
Abstract: 181,710. Soc. Anon. de l'Auto DÚbrayage T. L. June 17, 1921, [Convention date]. Clutches, free-wheel; variable-speed toothed gearing.-Relates to transmission mechanism for motor vehicles of the kind in which a friction treewheel clutch comprising a screw-operated cone clutch is provided between the engine and the road-wheels, to facilitate changing gear and so that the driven shaft can over-run the engineshaft. According to the present invention, the screw and the nut controlling the operation of the clutch are mounted (a) upon the member connected to the engine when the clutch is between the engine and the change-speed gear, or (b) upon the member connected to the road wheels when the clutch is in the change-speed gear-box, or is between the gear-box and the road wheels. The driving-shaft e carries one member d of the clutch the other member c being formed as a nut working on a screw b fixed to the driven shaft a. The direction of the threads of the screw is such that the engine torque tends to tighten the clutch, so that the driven shaft a, when it tends to over-run the engine-shaft, releases the clutch. The cone c is normally forced into engagement with the member d by a circumferential spring g acting between stops b<1>, c<2> on the screw and the cone respectively. Modifications are described in which (1) the screw and nut are carried by the driving shaft, and (2) the clutch is applied to the sliding gear-wheel of the change-speed gear through which the direct drive is obtained, so that the clutch acts only on the direct drive and one lower speed.
Patent GB-247450-A (GB)
Title: Improvements in pumps
IPC: F02M59/14
Filed: 1925-06-24
Abstract: 247,450. Lea, J. M. June 24, 1925. Flexible-chamber pumps; air vessels; actuating by electric motors.-A pump comprises a bellows member 45, Figs. 1 and 4, actuated by an armature 61, a contact member 104 movable relatively to but actuated by the armature, and an electromagnet 60 acting intermittently upon the armature, the contact member being caused by the magnetic field to keep closed an electric circuit during a predetermined travel of the armature. The electromagnet 60 has a core 62 and a. field plate 65, the electromagnet effectmg the suction stroke and a spring 81 the delivery stroke. The armature 61 is pivoted on balls 68, 70 and is connected to the end wall 50 of the bellows by a stud 78 and a nut 80. The electromagnet winding is connected to a fixed contact 102, 103 and to a contact 104 on an arm 105 carried bv the armature 61. A magnetic sleeve 106 on the armature holds the contact 104 in engagement with the contact 103 until the armature in its downward movement engages the support 105 and separates the contacts. In order to reduce sparking on the separation of the contacts, a closed coil 108 of fine wire is wound under or over the solenoid winding 60. The parts are enclosed in a cover 85 held by a screw 84. The bellows member 45 is carried by a head 7 with inlet and outlet passages 12, 13, an air chamber 17 in the inlet passage, and an inlet valve 25 between the chamber 17 and the interior of the bellows. The valve 25 seats on a cup member 20 with a central port 240, and is held in place by a spring 30, Fig. 6, resting on a retainer 26 having arms 28 engaging the sides of the cup 20. The cup and valve are removable through a central opening 9 closed by a hollow plug 16 forming the air chamber 17. The outlet valve 38 seats on a flanged sleeve 36 and is closed by a spring 39 fitting closely in a recess 40 in a screw cap 41.
Patent GB-1425801-A (GB)
Title: Copolymers of mono-olefins or of mono-olefins and unconjugated dienes
IPC: C08F4/60
Filed: 1974-04-11
Abstract: 1425801 Olefin copolymers SOC NATIONALE DES PETROLES D'AQUITAINE 11 April 1974 [12 April 1973] 16338/74 Heading C3P Linear random amorphous copolymers of (1) 99À9 to 80 weight per cent of non-polar units derived from at least two C 2-20  monoolefins and optionally at least one non-conjugated diene, and (2) 0À1 to 20 weight per cent of units derived from N-vinylimidazole, N-vinylimidazoline and derivatives thereof having hydrocarbyl or aminohydrocarbyl substituents on a heterocycle carbon atom, may be prepared by contacting the olefins with a Lewis acid complex of the nitrogen compound in an inert liquid in the presence of a catalyst comprising an organo compound of a Group I-III metal and a compound of a Group IV-VIII transition metal. The copolymers may be formed into cable sheaths, conveyer belts, pipes and sealing rings and vulcanized. The products have good adherence to metals. The polymerization may be effected batchwise or continuously. Many suitable reactants are specified and examples describe the preparation of copolymers of ethylene and propylene with ethyl aluminium dichloride complexes of (1-3) N-vinylimidazole, (4) N-vinylbenzimidazole, (5) N-vinylimidazoline and (6) N-vinyl-2-ethyl imidazole; and with (10) aluminium trichloride and (11) boron trifluoride complexes of N-vinyl imidazole; and copolymers of N-vinyl imidazole/ethyl aluminium dichloride complexes with (7) ethylene and butene-1, (8) ethylene, propylene and 5-ethylidene-2-norbornene and (9) ethyelne, propylene and dicyclopentadiene.
Patent GB-695670-A (GB)
Title: A process of forming benzene hexachloride in benzene solution
IPC: C07C17/02
Filed: 1951-07-10
Abstract: Benzene hexachloride having an increased percentage of gamma isomer is produced by reacting benzene and chlorine under irradiation with actinic light in admixture with 0.001 to 0.3 per cent of a nitrotoluene (e.g. 2 : 4-dinitro-, 2 : 6-dinitro-, trinitro- or paranitro-, toluene) at a temperature of 30 DEG  to 65 DEG  C.  In an example benzene is reacted with chlorine at 50 DEG  C. in the presence of 2 : 4-dinitrotoluene.
Patent GB-653674-A (GB)
Title: Process for softening fibrous materials and the manufacture of products suitable therefor
IPC: D06M13/252
Filed: 1947-06-20
Abstract: Textile materials are softened by treatment with an aqueous dispersion of a compound containing at least one aliphatic chain of at least 12 carbon atoms, the dispersion containing a dispersing agent comprising a water-soluble salt of a monoester of an aliphatic, aromatic, or cycloaliphatic dicarboxylic acid with an N-hydroxyalkylamide of a higher fatty acid and, if desired, in addition, a sulphonation product dispersing agent containing an aliphatic residue of at least 12 carbon atoms.  Specified textile materials are wool, silk, cotton, linen, regenerated cellulose fibres, cellulose acetate fibres and polyamide fibres.  The disperse phase may comprise esters and amides of the higher fatty acids, e.g. fatty oils, vegetable and animal fats, and N-hydroxyalkylamides such as stearic acid ethanolamide and oleic acid ethanolamide, and also mineral oils.  The monoester dispersing agents may be prepared, for example, as described in Specifications 615,665 and 621,324. Specified sulphonation product dispersing agents are sulphonic acids of benzimidazoles having a side chain of at least 8 carbon atoms which benzimidazoles may be aralkylated, e.g. the sodium salt of N-benzyl-m -heptadecyl-benzimidazole disulphonic acid; carboxylic acid esters of 4-sulphophthalic acid; sulphuric acid esters of higher fatty alcohols; acylated oxyalkyl or aminoalkyl sulphonic acids and highly sulphonated oils.  The materials are impregnated with the dispersion at room or higher temperatures, then squeezed or centrifuged and finally dried.ALSO:Fibrous materials are softened by treatment with an aqueous dispersion of a compound containing at least one aliphatic chain of at least 12 carbon atoms, the dispersion containing a dispersing agent comprising a water-soluble salt of a monoester of an aliphatic, aromatic or cycloaliphatic dicarboxylic acid with an N-hydroxyalkylamide of a higher fatty acid and, if desired, in addition, a sulphonation product dispersing agent containing an aliphatic residue of at least 12 carbon atoms. Specified fibrous materials are wool, silk, cotton, linen, regenerated cellulose fibres, cellulose acetate fibres, polyamide fibres, paper and leather.  The disperse phase may comprise esters and amides of the higher fatty acids, e.g. fatty oils, vegetable and animal fats, and N-hydroxyalkylamides such as stearic acid ethanolamide and oleic acid ethanolamide, and also mineral oils.  The monoester dispersing agents may be prepared, for example, as described in Specifications 615,665 and 621,324, [both in Group IV (c)]. Specified sulphonation product dispersing agents are sulphonic acids of benzimidazoles having a side chain of at least 8 carbon atoms which benzimidazoles may be aralkylated, e.g. the sodium salt of N-benzyl-m -heptadecyl-benzimidazole disulphonic acid; carboxylic acid esters of 4-sulphophthalic acid; sulphuric acid esters of higher fatty alcohols; acylated oxyalkyl or aminoalkyl sulphonic acids and highly sulphonated oils.
Patent GB-164754-A (GB)
Title: Improvements in and relating to telephone systems
IPC: H04M5/06
Filed: 1921-06-14
Abstract: 164,754. Drouet, L., and Thomas, A. June 16, 192), [Convention date]. Exchange systems. -- Each order wire 45, 54 has associated with it a callfinder D which, on the depression of an order wire key at an " A " operator's position, establishes connection between the order wire and the calling " A " operator's set. In the system described, two " A " positions are shown provided with keys 1, 2 and 3, 4 respectively, for establishing connection with two order wires. The conductors 8, 9, leading to each " A " operator's set, are multipled to the two upper contacts 5, 6 in each call-finder. Assuming that the first " A " operator wishes to appropriate the order wire associated with her key 1, on depressing the key a circuit is completed for the starting relay 31 of the call-finder D over the common starting wire 27. If the order wire is idle, the stepping magnet 16 is energized, and steps round the wipers 13, 14, 15. When the contact bank corresponding to the " A " operator's position is engaged, a circuit is completed for the cut-off relay 36 and relay 21. Relay 36 breaks the circuit of the stepping magnet and connects the " A " operator's set to the " B " operator's set over armatures 49, 50, whilst the relay 21 breaks the circuit of the lamps 24, 26. The extinction of lamp 24 indicates to the " A " operator that she is connected to the order wire. Lamp 26 is mounted on the supervisor's panel and indicates to him the state of the traffic. The key 30 permits the order wire 54, 45 to be connected direct to special keys at the " A " positions if the call-finder is out of action. In this case an interrupter is connected to the starting wire 27 over the conductor 58, and causes the lamps 26, 24 to give a flashing signal. If more than one of these special keys is provided, different frequencies of flashing signals may indicate which is to be used. The call-finders D are provided with lamps 56 to indicate when they are in use, and meters 55 to register the number of calls made over the order wire. Jacks, connected in parallel with the order wires, may be provided to enable a supervisor to listen in. An external pointer and disc (not shown) are also provided to indicate which " A " position is connected to'the order wire. The lamp 24 may be replaced by a buzzer, and continuously rotating hunting switches may be used instead of the call-finders described.
Patent GB-884217-A (GB)
Title: Nitric acid production
IPC: C01B21/26
Filed: 1959-05-13
Abstract: <PICT:0884217/III/1> In a process where HNO3 is produced by compressing air to 85 p.s.i.a. and above in a multi-stage compressor under substantially adiabatic conditions, mixing the compressed air with NH3, and burning on a Pt gauze, the hot gases from the burner generate and superheat steam by indirect heat-exchange with H2O and the steam drives a turbine connected to the compressor; the tail gases from the process are subjected to heat exchange with air from the first compression stage and with the hot gases from the steam generation without cooling these hot gases below their dew point, and the heated tail gases are passed to a gas turbine connected to the compressor; the hot burner gases are cooled below the dew point by a counter-current of water in an acid-resistant indirect exchanger, and the heated water is used in the steam generation.  The cooled burner gases are passed through a condenser, a zone where NO is oxidized to NO2, and a water absorption stage to remove HNO3, and leave the tail gas. Air enters first stage of two stage compressor 2 through filter 1, and passes through tail gas heater 3 to the second stage.  Part of the compressed air at 430 DEG -490 DEG F. passes through filter 6 and is mixed with NH3 entering through filter 8 in 7, and the mixture is burned in 9.  The hot gases pass in succession through superheater 10 and boiler 11, while the steam generated in 11 pass through 10 to steam turbine 12 via pressure controller 13.  The gases from 11 flow through tail gas heater 14 and water cooler 15 whence the boiler feed water passes to 11.  The gases pass through condenser 16 and absorption unit 17 which also receives the weak HNO3 from 16.  The HNO3 product is withdrawn after bleaching with the remainder of the air from the compressor through tail gas preheater 5.  The tail gas from 17 is withdrawn through heaters 3, 5, 14 to expansion gas turbine 18.  The condensed water from 12 is returned to cooler 15 and absorption unit 17.  Alternatively, in Fig. 2 (not shown), heater 5 is eliminated, and the air is heat-exexchanged with the gases leaving the boiler 11 before mixing with NH3.
Patent GB-421512-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F30/10
Filed: 1934-06-01
Abstract: 421,512. Transformers. MULLER AKT.-GES., C. H. F., 24, R÷ntgenstragse, Hamburg, Germany. June 1, 1934, No. 16404. Convention date, June 26, 1933. [Class 38 (ii)] A transformer having laminations 1 of the same shape and constant crosssection arranged radially in packets 6 and containing primary and secondary windings 3 and 2 and insulation 4 and 5 is constructed to have the minimum dimensions for a given voltage and power by making the internal radius r, the radial depth of the core window f, and the total radial depth of the core h<1> and h<2>, equal or approximately equal to each other. Auxiliary members or a current consuming device may be arranged in the central space 8. Specification 2801 /97, [Class 38], is referred to.
Patent GB-653098-A (GB)
Title: Improved method and apparatus for cooling milk
IPC: A01J9/04
Filed: 1948-06-18
Abstract: 653,098. Cooling milk. CURRY. R. S. June 18. 1948. Nos. 16511 and 21850. [Class 64(iii)] A method of cooling milk consists in cooling in bulk the whole of a predetermined quantity of liquid to a given temperature in a closed heat insulated vessel, thereafter circulating cooled liquid from said vessel through a milk cooler to a separate storage vessel while at the same time allowing the milk to be cooled to flow over the cooling surfaces of said milk cooler at a predetermined rate and then on completion of the cooling of a given quantity of milk returning the liquid from said storage vessel for recooling prior to being recirculated. In the milk cooling apparatus shown, fluid (e.g. water, brine or a mixture of ethylene glycol and water) is cooled in a heat insulated tank 1 by banks 10 of tubular cooling elements through which refrigerant passes to and from a refrigerating unit through flow and return pipes 11 and 12. The cooled fluid is pumped by a pump 27 from the cooling tank 1 through .a pipe 28 to and through a milk cooler 31, 32, which may be a double length cooler of the "Wolseley tubulent" type, and then through a pipe 34 to an unlagged storage tank 4 which is mounted on top of the cooling tank 1. By means of a pipe 5 the relatively warm fluid may be returned to the tank 1 for recooling when it is required to cool a further quantity of milk. A thermostat 51 in the cooling tank 1 regulates the temperature of the cooling fluid therein by controlling the operation of the refrigerator unit. A second thermostat 53 in the upper header tube of the milk cooler, and exposed to the cooling fluid leaving the cooler, regulates the operation of the motor 25 driving the pump 27. Alternatively, the temperature responsive element of the thermostat 53 may be exposed to the milk leaving the cooler. The flow of milk through the cooler is regulated by a cock 48 in the D-pan 45, into which the quantity of milk to be cooled is poured. A thermometer may be placed in the lower trough 41 of the milk cooler, the supply of cooling fluid being manually adjusted through the control valve 9, to maintain a constant reading. In another arrangement the storage tank 4 may be mounted alongside the cooling tank 1. In 'a further arrangement the cooling and storage tanks and refrigerating unit may be mounted on a four-wheeled trailer, the compressor of the refrigerator being driven by an I.C. engine which may be automatically switched off when the fluid in the tank 1 has been cooled to a predetermined temperature, restarting being done by hand.
Patent GB-424319-A (GB)
Title: Improvements in distributors of metallic stoppers or caps for bottles, flasks, cans, and the like
IPC: B67B3/064
Filed: 1934-06-04
Abstract: 424,319. Capsule reservoirs in bottlecapping machines. DETREZ, R., 39, Rue St. Quentin, Nogent-sur-Marne, France. June 4, 1934, No. 16549. Convention date, June 21, 1933. [Class 125 (ii)] Relates to capsule reservoirs of the type which is given a rise and fall movement relative to the frame of the machine while the distributer shaft is given a continuous or intermittent movement. According to the invention motion is imparted to the distributer shaft 4 by gearing 6, 7. The pinion 7 is carried on a hollow sleeve 8 which is rotatably mounted on a lay shaft 13. A free wheel 9 is keyed to a sleeve 8 with which a chain 10 carrying a counterweight and fixed at one end to the machine frame, is associated. The speed of the distributer shaft can be varied by modifying the gearing 6, 7, and two free-wheels can be fitted to the lay shaft to operate in opposite directions and give a practically continuous movement to the distributer shaft.
Patent GB-388793-A (GB)
Title: Improvements relating to the stringing of tennis and like racquets
IPC: A63B51/14
Filed: 1931-06-06
Abstract: 388,793. Stringing rackets. SIEFF, S. H., 30, Mildmay Park, London. June 6, 1931, No. 16561. [Class 132 (ii).] In an apparatus for mechanically tensioning the strings of rackets, the tensioning pull is imparted to one or more of the strings at a time by the gradual or immediate release of a predetermined and previously created load. The racket is strung, prior to being inserted in the machine, by means of a flexible needle having a hole in one end into which the free end of the string is screwed, the stringing operation being facilitated by crimping plates that provide aligned passages for the transverse strings. The racket 6 is positioned in the tensioning apparatus by two pairs of lugs 7, Fig. 3, pivotally supported, one pair in each of two plates 8 that are slidable on a base 8b and adjustable by an oppositely-threaded screw 8c, Fig. 1. The racket is held in position by detachable clamping members 9 pivoted to extensions 11 of the slidable plates 8 and operable by thumb-screws 9a. A pair of tensioning devices is provided at each side of the machine Each tensioning device, Figs. 1 and 4, comprises a frame 13 slidably adjustable in guides 14 by oppositely-threaded screws 15. A square rod 18 is slidable transversely of each frame 13, the rods of each pair of frames being connected by a cord 26 that passes around a pulley 29 connected through a lever 27 and link 28 to a float 3 in a tank 2. By rotation of a hand-wheel secured to a shaft 33, cords 35 are wound on a drum 32, whereby levers 38 are rotated to engage projections 41 on the rods 18 which are thus moved inwardly towards the racket. This movement, through the cords 26, rocks the levers 27 and depresses the float into the liquid in the tank. A hook 19, Fig. 4, is pivoted to the inner end of each rod 18, and the hooks of one pair are engaged with two loops of the stringing on one side of the racket. The handwheel is slacked back a sufficient distance to elongate the loops and allow clamps 21 to be engaged with the strings to connect them to the rods 18. The strings are then tensioned by a complete reverse rotation of the hand-wheel and are maintained in stressed condition by clamps 23. The operation is repeated using the tensioning devices at opposite sides of the machine alternately. When the transverse strings have been set up, the mains are tensioned in a similar manner, the racket and its support being lifted and rotated as a whole through a right-angle.