baber/WOPTO huggingface dataset:
Patent GB-1025098-A (GB)
Title: Improvements relating to nylon filaments
IPC: D01F6/60
Filed: 1963-08-22
Abstract: 1,025,098. Producing drawn nylon filaments. E. I. DU PONT DE NEMOURS & CO. May 22, 1963 [May 22, 1962; April 23, 1963], No. 20482/63. Heading B5B. Drawn nylon filaments comprising a copolymer of polyhexamethylene adipamide and polycaproamide or a terpolymer of polyhexamethy lene adipamide, polyhexamethylene sebacamide and polycaproamide, in which the percentage concentrations of the polyamides fall within the area ABCDE of the accompanying drawings, and having a " shrinkage tension to shrinkage ratio " below 0À70 and a boil-off shrinkage of 8-15% may be produced by melt spinning the polymer, cold drawing the filaments produced, and relaxing the cold drawn yarns. The shrinkage tension is determined by placing a sample of the yarn which has been permitted to relax for 24 hours at 74 F. and 72 R.H. between the jaws spaced 10 inches apart of an Instron Tester, immersing the yarn sample of water at 90 C. for 5 minutes, withdrawing the now tensioned sample, permitting it to cool and dry at room temperature for 5 minutes, reading the tension in grams and recording it in grains per denier. Filament shrinkage is determined by measuring a length of the filament when held under sufficient tension to keep it straight without tension, treating the measured length in a relaxed state with boiling water for 15 minutes, drying and measuring the boiled-off length and expressing the shrinkage as a percentage. The shrinkage-tension/shrinkage factor is calculated by dividing the shrinkage tension, measured in grams per denier, by the per cent shrinkage in boiling water and multiplying the resultant quotient by 100. The filaments may have an initial modulus no greater than 12 grams/denier and a tenacity of at least 4 grams/denier. The filaments may have a nuclear magnetic resonance factor greater than 1.0, preferably at least 1À2. They may contain a small proportion of a salt of terephthalic acid, for example 0.25 to 3% of calcium teraphthalate. In their production they may be relaxed by 2-3% after allowing them to stand for at least 30 minutes, or by 12-15% continuously with the cold drawing. In an example, the melt extruded filaments are cold drawn over a pin at a draw ratio of 4À74 and after standing for 24 hours are relaxed and annealed by several passes over a steam-heated hot plate whose temperature is 150 to 200 C. with two rollers permitting 2À5% shrinkage.
Patent GB-826681-A (GB)
Title: Improvements in heat exchangers
Inventor: KEMMETMULLER ROLAND
IPC: F28D7/02
Filed: 1956-07-02
Abstract: 826,681. Heat exchangers. WAAGNERBIRO A. G. July 2, 1956, No. 20488/56. Class 64(3) [Also in Group II] In a combined heat exchanger and centrifugal separator in which a gas is heated or a liquid evaporated by means of a heating gas, the heating gas is caused to move with a helical flow in a direction generally parallel to the other fluid and, to improve the rate of heat transfer, the boundary layers of gas together with dust &c. particles contained in the gas are withdrawn a plurality of times during each rotational movement of the gas and are thereafter returned to the main gas stream. In the form shown the fluid passages are formed by a group of juxtaposed tubular elements 1 of star-shaped crosssecton, the fluid to be heated flowing through passages within the elements and the heating gas flowing through other passages 2 each defined by ribs 1<SP>1</SP> of adjacent elements 1. The ribs 1<SP>1</SP> are grooved as shown at 6 and pair of adjacent ribs co-operate to form a slit in the wall of a passage 2, a plurality of such slits being provided through which the boundary layers of the whirling stream of gas are withdrawn as indicated by arrows 5, the gas withdrawn being subsequently returned to the main stream downstream of the passage 2. The whirling motion of the gas may be effected by separate guides or helical vanes 4 (Fig. 1) or by vanes formed integrally with the elements 1 (Fig. 11, not shown). Alternatively (Fig. 3) helical vanes in the heating gas passage may be carried on a tube 14 extending therethrough in which the same or a different fluid to be heated or evaporated flows. The fluid to be heated or evaporated may also be given a whirling motion and its boundary layers withdrawn to improve heat transfer, and in addition, displacer elements (Figs. 8, 9, not shown), may be fitted to vary the cross-sectional area of the passage. The elements 1 may comprise short ribbed sleeves mounted on a tubular core (Fig. 7, not shown).
Patent GB-1497463-A (GB)
Title: Electromechanical time-lag relay
IPC: H01H50/04
Filed: 1975-05-15
Abstract: 1497463 Electrical connectors H SCHLEICHER 15 May 1975 [29 May 1974] 20522/75 Heading H2E [Also in Division H1] An electromechanical time lag relay has a plug base 14 comprising a plurality of contact pins 16 equally spaced about a central guide pin 17 which is in axial alignment with an actuating spindle 8 on which a drive motor 1, magnetic coupling 3, 4, 5, time control mechanism and knob 9, 10, are arranged. An axially extending lug is provided on the central guide pin, or one contact pin may have a greater diameter than the others, to ensure correct positioning of the plug pins in a socket. The central guide pin is made of insulating material and the contact pins are round.
Patent GB-1192664-A (GB)
Title: Improvements in and relating to Piezoelectric Measuring Instruments
Inventor: LIST HANS
IPC: G01L23/10
Filed: 1968-05-01
Abstract: 1,192,664. Piezo-electric transducers. H. LIST. May 1, 1968 [May 11, 1967], No.20539/68. Heading G1N. A Piezo-electric transducer used for measuring the pressure of a high temperature gas, e.g. in the cylinder of an I.C. engine, comprises a Piezo-electric element in a housing which is in thermal communication with elements or surfaces arranged to be cooled by a stream of coolant or the ambient air. In one arrangement, Fig. 1, the Piezo-electric housing 9 is screwed into a cylindrical sleeve 4 of heat-conducting material such as aluminium, copper or copper-beryllium alloy, provided with cooling fins 5 on its outer surface. The sleeve is screwed into the wall 1 of a chamber containing the gas whose pressure is to be measured, the gas communicating with a thin-walled sensing surface of the Piezo-electric element housing through bores 10 in the sleeve. Alternatively the housing itself may be of heat-conducting material and be provided with air-cooling fins, Fig. 5 (not shown). In a further embodiment, Fig. 4, for use with water-cooled engines, the Piezo-electric housing is screwed into a sleeve 27 which is expanded into firm contact with the chamber wall 1 by a threaded conical sleeve 33.
Patent GB-1468351-A (GB)
Title: Formation dip and azimuth processing technique
IPC: E21B47/026
Filed: 1973-05-01
Abstract: 1468351 Data processing SCHLUMBERGER Ltd 31 May 1974 [1 May 1973 1 April 1974] 20610/73 and 14306/74 Heading G4A Three dimensional representations of earth formation features are produced by computer from measurements indicative of dip and azimuth in a borehole. Signals from a plurality of measurement pads 19-22 on a diameter are processed by conventional cross correlation and averaging techniques to determine displacements between points on a corresponding dip plane whose dip # and azimuth # are then output, B, as representative of a given depth D(I). Apparent dips #<SP>1</SP> and #<SP>11</SP> are computed for two planes P<SP>1</SP>, P<SP>11</SP> in different azimuths and traces corresponding to the apparent dips are produce 1 e.g. for real time display, as plots on corresponding sides of a line representing the intersection of the planes, e.g. at the borehole. The process is repeated for a series of depths D(I). The display illustrated represents simple planar surfaces as straight lines, but in practice modelling techniques are used to predict the behaviour of the surfaces at varying distances from the borehole. Structural models, e.g. for intersecting or faulted planes or cylindrical folding are discussed in detail.
Patent GB-364615-A (GB)
Title: Improvements in or relating to circular rib knitting machines
IPC: D04B9/06
Filed: 1930-07-08
Abstract: 364,615. Circular knitting-machines. JACQUARD KNITTING MACHINE CO., Inc., 1924, Hunting Park Avenue, Philadelphia, U.S.A.--(Assignees of Sirmay, J. ; 4939, B. Street, Philadelphia, U.S.A.) July 8, 1930, No. 20659. Convention date, May 23. [Class 74 (i).] A multi-feed rib knitting-machine having means for supplying a plurality of yarns to the needles of all sets is provided with tricked selector wheels (or " skip operators ") acting on one set of needles and with pattern mechanism for varying the selection of the other set. Latch needles sliding in stationary beds and controlled by jacquard type pattern mechanism 9 are employed. Levers 11, one for each cylinder needle or small group thereof are actuated, when pins 12 find perforations in the pattern bands 10, to engage the needle jacks 13. A cam 14 raises, at each feed, the inner ends of all the levers 11 and so passes the selected needles to positions at which they may take yarn at that feed. Each feed also includes a trick wheel 20 for operating on dial needles. The movements of the rib needles are preferably completed by cams 25, 26, 27, 29. By turning a member 28 the cam 29 is rendered inoperative and a cam 30 is brought into action whereby all the dial needles can be kept out of yam receiving position at this feed. A eam 35 can act to nullify the selective action of the wheel 20. When fancy effects are being knitted the stitch cam 42 is in action. When plain ribbed work is being done an extra cam 40 is brought into use. The various movable cams may be operated by pattern controlled bob-pins which act on pairs of arms such as 49, 50 and 59, 60, Fig. 1 (not shown). A cam 75 projects, the dial needles sufficiently far to open their latches in advance of each feed. The trick wheels may be applied to the cylinder needles and the jacquard device to the dial needles.
Patent GB-382284-A (GB)
Title: Improvements in folding spectacles
IPC: G02C5/00
Filed: 1931-07-21
Abstract: 382,284. Spectacles. EGLINTON, W. D., 100, Lower Addiscombe Road, Croydon. July 21, 1931, No. 20848. [Class 97 (i).] In folding spectacles or eyeglasses the eyepieces are connected to a rigid bridge so as to be capable of universal relative motion one to the other. As shown, the bridge 1 is pivoted at 2 by vertical pivots to elements 3 pivoted at 4 by horizontal pivots to fitments 5 secured by the lugs 6 to the rims 7 of the eyepieces. The bridge 1 has cut-away portions registering, when the spectacles are open, with stops on the elements 5. In a modification the hinges 2 may be replaced by a central hinge in the bridge. The bridge may he provided with ball joints at the ends or with bayonet-joints or pin-and-slot connections. Specification 340,613 is referred to.
Patent GB-908738-A (GB)
Title: A machine for grading root crops according to size
IPC: B07B1/22
Filed: 1960-06-15
Abstract: 908,738. Screening apparatus. LAKE, C. A. June 15, 1960, No. 20987/60. Class 117 Root crops, e.g. carrots, are fed to one end of a cylindrical rotary screen 2 of fine mesh which allows soil to fall through, and the crop then passes to a second screen 3 of large mesh coaxial and integral with screen 2, through which medium sized and small crops fall to an outer cylindrical and rotary screen 4. The largest crop discharges from the end of screen 3 and flows down a shoot to an elevator 14 ; the smallest crop falls through screen 4 to hopper 15, and the medium sized crop passes from the outer end of the screen 4 to a shoot feeding an elevator 18. The screen 3 is eccentrically positioned within the outer screen, Fig. 3, and is driven in an opposite direction to it by a motor 5 through belt and pulley drives. Specification 908,739 is referred to.
Patent GB-633447-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/05
Filed: 1947-08-01
Abstract: 633,447. Filters. VOLTAS, Ltd., and BEADLE, W. W. Aug. 1, 1947, No. 21061. [Class 46] A filter includes in combination a base plate 1 and a top plate 3 formed with annular rims between which is clamped a centre section 2 which carries a filter paper 6, the meeting faces of the sections being flat so that flat jointing rings 8, 9 of rubber or other material not liable to attack by the liquid being filtered can be used. A strainer plate 12 with perforations 13 rests on the filter paper. The section 3 has an inlet 10 for liquid and the section 6 has an outlet 4. The sections are clamped together by means of pivoted clamping bolts 19 and wing-nuts 22.
Patent GB-149256-A (GB)
Title: Kinematograph apparatus
IPC: G03B21/18
Filed: 1920-07-12
Abstract: 149,256. Soc. Anon. E. Fumagalli & Co., (Assignees of Fumagalli, E.). June 14, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Kinematograph apparatus.-A kinematographprojector shutter has wings which close the openings therein while the shutter is stationary, but which open under centrifugal action, to an extent depending upon the speed, when the shutter is in motion; the amount of light and heat passing to the film is thus regulated in accordance with its speed. As shown, the shutter comprises a truncated cone 5 having two openings 9, and is is mounted on a shaft 6. Within the cone are two pairs of wings 10, 11 mounted on plates 10<1>, 11<1>, which are rotatable about a screw 7. Two bent arms 14, 15 carrying weights 14', 15<1>, and connected by a spring 16, are pivoted at 13 to a plate 12 to which the cone 5 is attached. These arms carry pins 17, 18 projecting into slots 19, 19<1> in the plates 10<1>, 11<1> carrying the wings. When the shutter commences to rotate, the arms 14, 15 turn on their pivot and through the pins and slots rotate the wings so that they uncover the openings in the cone 5, the extent of the uncovering depending upon the speed of rotation.
Patent GB-1202974-A (GB)
Title: Bucket-elevator
IPC: E02F3/12
Filed: 1968-05-03
Abstract: 1,202,974. Bucket elevators. HAARLEMSCHE MACHINEFABRIEK VOOR HEEN GEB N.V. FIGEE. 3 May, 1968 [3 May, 1967], No. 21130/68. Heading E1F. The lower reversing wheel 4 of a bucket elevator is provided with digger means 10 for both excavating material from a bulk source and subsequently delivering such material into the buckets 1 of the elevator as the buckets are carried by endless elements 2 about the wheel. The digger means 10 preferably comprise cutter blades 11 secured between aligned pairs of arms 12 extending radially of supports 8 secured to the ends of the wheel 4. The distance between the cutter blades is equal to the pitch of the buckets and the contours of the blade correspond to the leading edges of the buckets so that each of the blades can form a contiguous extension with an associated bucket during part of the travel of the bucket about the wheel.
Patent GB-1280994-A (GB)
Title: Improvements relating to battery charger circuits
Inventor: SMITH BRIAN TURTON
IPC: H02J7/00
Filed: 1968-05-03
Abstract: 1280994 Automatic control of current and voltage WESTINGHOUSE BRAKE & SIGNAL CO Ltd 11 July 1969 [3 May 1968] 21138/68 Addition to 1098358 Heading G3R A battery charger circuit of the kind described and claimed in parent Specification in which a battery 13 first charged to a predetermined voltage and is subsequently charged at a lower floating constant voltage, is arranged so that the initial charge up to the predetermined voltage comprises a constant current period followed by a constant voltage period. In the example given, the battery is first charged at a constant current I1 until a voltage V1 is reached, when the voltage is held constant while the current drops to I2. This current is maintained until the predetermined voltage V2 is reached. Subsequently, both the voltage and current are reduced in alternate steps until the floating voltage V4 is finally attained. The circuit may be used on an electric vehicle.
Patent GB-1496400-A (GB)
Title: Non-liquid detergent composition
IPC: C11D1/04
Filed: 1975-05-19
Abstract: 1496400 Lauroyl polylactic acid LION FAT & OIL CO Ltd 19 May 1975 [21 May 1974 (2)] 5 Dec 1974] 21166/75 Heading C2C [Also in Division C5] Aqueous lactic acid, lauric acid and phosphoric acid are stirred together under nitrogen and water is removed. After further stirring at reduced pressure, lauroyl poly-lactic acid of formula wherein n ranged from 1 to 6, is obtained. Lauroyl poly-glycolic acid may be prepared in a similar manner. one of the following formulµ where R 1 -R 3  are = H or hydrocarbyl radicals which are C 1-18  aliphatic, C 6-10  aromatic, C 7-10  araliphatic or C 5-7  cycloaliphatic, not more that one of R 1 -R 3  being -H, and R 4  is R 1  or -N(R 2 )(R 3 ); (b) where R 1  and R 2  are as above and n is 2-4; (c) where R 2  and R 3  are -H or C 1-4  alkyl; or (e) where m and n are each 2-4. In examples: (1) dibutyltin dilaurate is reacted with 2,3-dimethyl - 3,4,5,6 - tetrahydropyrimidine; (5) dibutyltin dilaurate with N-methyl-imidazole; and (7) 2,3 - dimethyl - 3,4,5,6 - tetrahydropyrimidine with each of tin(II) octoate, Hg(II) acetate, Zn-acetate, Zn-acetylacetonate, Znoleate, Mg(II) acetylacetonate, Cu(II) acetylacetonate and Fe(II) acetylacetonate. Other metal compound and amidine reactants are specified. The complexes are useful as catalysts in polyurethane preparation.
Patent GB-809942-A (GB)
Title: Method of tightening up a fastener assembly using a torque multiplying spanner
Inventor: WRAGGE WILLIAM BENJAMIN
IPC: B25B17/02
Filed: 1954-10-08
Abstract: 809,942. Wrenches. LEDLOY Ltd. Dec. 30, 1955 [Oct. 8, 1954], No. 21169/58. Divided out of 809,941. Drawings to Specification. Class 61. [Also in Group XXV]. The subject matter of this Specification is identical with that described in Specification 809,941 but the claims differ. Specifications 750,892 and 750,989 also are referred to.
Patent GB-386347-A (GB)
Title: Improvements relating to wall plugs
IPC: F16B13/02
Filed: 1931-07-25
Abstract: 386,347. Wall plugs. RAWLINGS, J. J. and RAWLPLUG CO., Ltd., Rawlplug House, Cromwell Road, South Kensington, London. July 25, 1931, No. 21265. [Class 89 (i).] A wall plug is formed from a metal tube having longitudinal or helical corrugations b, the inward projections c of which engage the screw to be secured. The tube may be split along a longitudinal or helical line. When the screw is inserted the corrugations c are bent over as shown in Fig. 5. Specification 280,987, [Class 89 (i), Bolts &c.], is referred to.
Patent GB-460374-A (GB)
Title: Improvements in or relating to the manufacture of water soluble chlorites
IPC: C01B11/10
Filed: 1935-07-26
Abstract: Water-soluble chlorites, such as sodium or calcium chlorite, are obtained by introducing chlorine dioxide into an aqueous medium containing the requisite alkaline material and a carbonaceous reducing agent.  As alkaline material the free base is preferably employed, but the carbonate may also be used, and the reducing agent may be coke, carbon, charcoal, wood, sawdust, paper pulp, sucrose, glucose, or levulose.  Good distribution of any reacting materials in suspension is obtained by employing them in a fine state of subdivision and agitating the reaction mixture.  In examples using various reducing agents temperatures from 20--50 DEG  C., are used, but any temperature between the freezing and boiling points of the solutions may be employed. Specification 460,375 is referred to.
Patent GB-244160-A (GB)
Title: Improvements in mechanism for operating elevator doors or the like
IPC: B66B13/08
Filed: 1924-09-09
Abstract: 244,160. White, A. E., (Elevator Supplies Co.. Inc.). Sept. 9, 1924. Operating and controlling doors hydraulically and pneumatically; checks.-Lift doors and other movable members such as railway signals are operated by a fluid-pressure device which is associated with a device for checking the end movements of the operating piston, and comprises a cylinder, a piston therein, a second cylinder concentric with the first cylinder and containing a liquid connected to the piston, the walls of the second cylinder being formed with passageways to attain cushioning action of the piston during its forward and return strokes. A constructional form of the operating piston and check device is shown in Fig. 2, and in Fig. 4 the apparatus is shown as applied to the doors of a lift. The plunger rod 8, Fig. 2, which is connected with the mechanism to be operated, is secured to a piston 2 and to its lower end is secured a plunger 18 movable in a check cylinder 16. A supply of pressure fluid is led through a pipe or pipes (not shown) underneath the piston 2, to cause it to move up in the cylinder 1 against the return of a closing spring 60. The check device, has a by-pass passage 26 controlled by a regulating screw 28, and by-pass passages 38, 50 controlled by valves 44, 52, these passages leading into an enlarged part 30 at the middle part of the check cylinder. The upper part of the check casing 14 is closed by a perforated diaphragm 32. During the upward movement of the piston 2 the corresponding movement of the plunger 18 causes the oil or other liquid in the check cylinder to flow through the passage 26 until the plunger passes the part 30, after which the continued movement of the plunger forces the check liquid through the port 42 and past the spring-pressed non-return valve 44 into the reservoir 38. When the control valve of the operating piston is put to exhaust and the piston is forced downwardly by a compression spring 60, oil passes through the passage way 50 past the ball 52 to the upper side of the passage in order that the operating movement of the door or other movable member may be cushioned when the piston 2 is again lifted. The restricted passage 26 provides for a cushioning movement as the plunger descends into the lower part of the check cylinder. In the e.vent of the piston 2 being lifted by the admission of pressure fluid before the piston has completed its downward stroke, the fluid pressure admitted to the cylinder 1 acts through the perforated diaphragm 32 to assist in forcing the check fluid in the reservoir 38 upwardly through the passage 50 to the upper part of the plunger. As applied to the operation of the sliding doors 2, 3, Fig. 4, the operating rod 17 is connected to the member 6 of a set of toggle levers 4, 5, and the pressure fluid for operating the piston is controlled by a valve 34 on the supply pipe 32.
Patent GB-276022-A (GB)
Title: Improvements in rubber-pads for boots and shoes
IPC: A43B21/22
Filed: 1927-08-15
Abstract: 276,022. Bialas, J., (Assignees of Otto & Co., F. T.). Aug. 16, 1926, [Convention date]. No Patent granted (Sealing fee not paid). Protectors, construction of.-Heel pads constructed to prevent mud splashing are made of rubber, leather, or the like provided with a head surface having lancet-shaped indentations a<1> arranged as shown in Fig. 1. The indentations are slightly curved towards the front of the heel and do not extend to the outer edge. Owing to the concavity of the tread, the indentations become deeper towards the outer edge. A horseshoeshaped groove b open at the front ends connects the indentations for discharge of mud and water. An elliptical central cavity d is provided having a discharge channel e.