baber/WOPTO huggingface dataset:
Patent GB-745410-A (GB)
Title: A process of dyeing and dyeing preparations therefor
IPC: D06P3/04
Filed: 1953-07-20
Abstract: In the dyeing of nitrogen-containing materials, e.g. leather, wool, silk or polyamide or polyurethane fibres, with acid dyestuffs, the dyebath employed has a pH of 4-9, preferably 6-8, and contains phosphorus-containing anions and a complex cobalt compound of a metallizable monoazo-dyestuff which contains a substituted or unsubstituted sulphonic acid amide group or a sulphone group and is free from carboxyl groups in a position other than vicinal to the azo linkage and is free from sulphonic acid groups, the cobalt compound containing less than one atom of cobalt per molecule of monoazo-dyestuff.  The phosphorus-containing anions are derived from orthophosphoric, pyrophosphoric, metaphosphoric or polyphosphoric acids or water-soluble salts, e.g. ammonium or alkali-metal salts, or mixtures thereof.  The pH of the bath may be adjusted with acetic or boric acid and the bath may also contain sodium sulphate, ethylene oxide condensation products or anion-active or cation-active substances.  As the cobaltiferous dyestuffs there are preferably employed cobalt compounds which contain one atom of cobalt bound in complex union with two molecules of the same or different ortho: ortho1-dioxy- or ortho-oxy -ortho1-amino-monoazo dyestuffs.  Numerous examples are given.  Specification 588,454 is referred to.  The cobaltiferous dyestuff and the phosphate may be made up into a dry or pasty preparation for use in preparing the dyebath.
Patent GB-1068884-A (GB)
Title: Spectrophotometer
IPC: G01J3/42
Filed: 1964-05-14
Abstract: 1,068,884. Photo-electric spectrophotometers. K. A. L. AKERMAN. May 14, 1964 [May 14, 1963], No. 20236/64. Heading G1A. [Also in Division G2] A spectrophotometer comprises a source of radiation, a mirror system directing a beam of radiation from the source alternately through a sample and a reference to an optical magnifier whence the radiation falls on a photo-multiplier and means for taking the logarithm of the photomultiplier response. The image of the aperture 7, illuminated by a monochromator 4, is reflected into a mirror system 9 including a mirror 11 oscillated angularly between two positions by an electromagnetic device 12 energized by a rectangular wave from a double voltage limiting diode 19. In the two positions light is reflected respectively to sample and reference points 13 in a microscope slide carrying a biological cell. These points may be selected rotating the mirror unit 9 and adjusting the oscillatory amplitude of mirror 11. Light from both points passes through the microscope 14, 15 to the cathode 17 of the photo-multiplier. A feedback circuit maintains the photo -multiplier current constant by altering the dynode potential. This potential includes a square wave component proportional to the difference in transmissivity between the sample and reference and, after operation in the logarithmic amplifier 18, the difference in extinction. This logarithm signal is analyzed by a phase sensitive rectifier comprising a transformer 31 with a centre tapped secondary and a switch 32 synchronized with the electromagnetic device 12. The duty cycle of the switch 32 is such that transients are avoided, and the output from the switch is connected via a filter 33,. 34 to a recorder 38. The paper drive of the recorder is coupled with a drive for the dispersion element of the monochromator 4.
Patent GB-507808-A (GB)
Title: Improvements in rackets for tennis and similar games
IPC: A63B51/12
Filed: 1938-07-08
Abstract: 507,808. Tennis and like rackets. JARDOT, M. P. July 8, 1938, No. 20282. Convention date, July 9, 1937. [Class 132 (ii)] Relates to string tensioning devices in which the strings are connected to strips guided in grooves in the periphery of the frame and moved by a right- and left-handed screw device located in the heart of the racket, and consists in arranging the grooves in the central plane of the racket, the edges of the strip engaging the bottom of the grooves which are curved in arcs of circles. Two rigid bands or strips 1, 2 preferably of light metal are housed in grooves 14, 14<1> in the racket frame the inner surfaces being circular and struck with a centre at X or X<1>. They are shown in connection with a diagonally strung racket and are provided with perforations 3, 4, 5, &c. through which the gut is passed. Pulling guides 7, 8 are pivotally mounted on pins 15, 16 on the strips and are threaded to receive a right- and left-handed screw 13. When a spanner is placed at 9 and the screw turned clockwise, the strips are drawn towards one another and the strings tensioned. By spacing the holes in the strips suitably different string pairs may have different tensions. The Specification as open to inspection under Sect. 91 comprises also a modification in which the strips bear at their lower ends only against the inner surface of the grooves which inner surface is reinforced by a metal plate. This subject-matter does not appear in the Specification as accepted.
Patent GB-669256-A (GB)
Title: Electric primary cell
IPC: H01M6/04
Filed: 1950-08-15
Abstract: 669,256. Batteries. DOW CHEMICAL CO. Aug. 15, 1950 [Dec. 22, 1949], No. 20284/50. Class 53. A primary cell comprises a container 1 made of magnesium or a magnesium alloy constituting the anode, and a carbon rod 4 surrounded by a mixture 3 of manganese dioxide and carbon moistened with electrolyte. The latter consists of a solution of a bromide of an alkali or alkaline earth metal or ammonium and may contain a chromate or bichromate. No separator is used between the mix 3 and anode 1 which are in direct contact with one another. The rod 4 is separated from the container by an insulating washer 5.
Patent GB-827612-A (GB)
Title: Improvements in or relating to attenuators for co-axial lines
Inventor: BOWMAN ALFRED
IPC: H01P1/22
Filed: 1956-06-30
Abstract: 827,612. Attenuators for coaxial lines. EGEN ELECTRIC Ltd., and BOWMAN, A. June 26, 1957 [June 30, 1956], No. 20315/56. Class 40 (8). A coaxial attenuator, e.g. for insertion in the coaxial line between a T.V. set and its aerial, comprises a metallic casing forming an outer conductor and a disc-like resistor at both ends of said casing, shunting it to the inner conductor, which has a terminal at both ends of said casing, and a variable substantially disc-like resistor within said casing and in series with the inner conductor. The cylindrical casing is in two parts 1, 2 screwed together and provided with tubular ends which surround the inner terminals 4 and 10 and provide coaxial connections for a plug and socket. One shunt resistor b and the series resistor c are mounted on opposite sides of an insulating disc 3 by an extension of the terminal 4 which passes through members b, c and 3 and is turned over against washer 5. The second shunt resistor a is separately but similarly mounted parallel to the others on insulating disc 12 by the extension of terminal 10 and longitudinal movement is prohibited between the two resistor assemblies by a hollow dielectric cylinder 13 carrying a longitudinal conductor 17 in a slot 16; said conductor being insulated from the casing and connecting at its end 18 a part of resistor c to terminal 10 via a resilient spider 19. The cylinder 13 may occupy several rotary positions determined by the location of a pin 6 in one of the equally spaced slots around its periphery. The insertion of the pin prevents the rotation of the resistors band c and of the cylinder 13 and causes the conductor 17 to connect a required section of the resistor c in series between the terminals 4 and 10. A scale on the cylinder 13 to indicate its rotation relative to the casing may be observed through a hole 7.
Patent GB-459876-A (GB)
Title: Means for the distance transmission of indications of water flow in a meter of the disc-and-cone type
IPC: G01F1/26
Filed: 1935-07-17
Abstract: 459,876. Electric signalling systems. PALATINE ENGINEERING CO., Ltd., BROWN, W., and ANTHONY, T. E., Hawthorne Road, Bootle, Liverpool. July 17, 1935, No. 20325. [Class 40 (i)] The readings of a disc-and-cone water meter are transmitted to a distant point by a variable resistance or inductance controlled by a rotary member carried by a pulley 6 which is rotated by a counterweighted cord 7, 9 connected to the disc 8a of the meter. In Fig. 1, the rotary member 4 of potentiometer 3 controls the current in circuits 10a- 10c the variations of which are indicated or recorded by a ratiometer at the distant point. In Fig. 2, for use with alternating current only, the current in circuits 10a-10c is varied by varying the inductance of coils 11a, 11b by a rotary member 13 carrying cores 12a, 12b. The Provisional Specification also describes arrangements whereby a rod connected to the meter disc carries a core or sleeve for modifying the inductance of chokes, the apparatus being inside or outside the meter casing.
Patent GB-1314082-A (GB)
Title: Connector for use in a liquid medium
IPC: E21B33/038
Filed: 1970-04-28
Abstract: 1314082 Protected connector COMPAGNIE FRANCAISE DES PETROLES 28 April 1970 [28 April 1969] 20326/70 Heading F2G A spigot and socket connector comprises a socket containing a protective liquid, a reservoir being in communication with the socket by at least one hole above the level of the protective liquid and at least one further hole below the level of the liquid. The connector is such that when the spigot is introduced into the socket liquid is displaced into the reservoir in such a way that any debris floating on the surface of the liquid will pass to the reservoir via the upper of said holes. On removing the spigot liquid will return to the socket via the lower of the said holes. The mating surfaces of the socket are thereby protected against foreign material. The invention may apply to any connection requiring clean surfaces for mechanical or hydraulic or electrical connection.  As described a subaqueous well head comprises a casing 10 secured to the well pipe 12, a reservoir 52 being connected to the interior of the casing by upper holes 50 and lower holes 62. Mercury 47 is introduced into the reservoir and casing so that when the spigot 20 is removed the surface of the mercury lies between holes 50 and 62 and covers the mating surface 43 of the casing (which surface accommodates sockets 42 for mating with the hydraulic connection 40 carried by the spigot 20). Ingress of sediment, and marine growth, and corrosion of the surface 43 by sea water, is thereby prevented. When the spigot 20 is introduced the level of the mercury rises until it reaches holds 50. As any sediment will float on the mercury the debris is therefore passed to the reservoir via the holes 50. On subsequent retraction of the spigot 20, fresh mercury will pass back to casing 10 via holes 62. The spigot 20 is retained in the casing by movable dogs 32 locating in groove 34. These dogs may be actuated when a key (30) (Fig. 1, not shown) in the side wall of the casing 10 locates with a keyway (28) on the outer wall of the spigot. The key and keyway ensure correct registration of the connections 40 in sockets 42. The large connector 44 locates in the base 14 of the well pipe 12. A filter may be located in the reservoir between the holes 50, 62 at the junction of walls 54, 58. The following documents are referred to: U.S.A. Specifications 2,462,901, 3,050,127, 3,111,142, 3,291,210, 3,352,357 and 1,189,968.
Patent GB-1033122-A (GB)
Title: Improvements in or relating to the formation of metal coatings
Inventor: JACKSON ALBERT EDWARD
IPC: C25D13/02
Filed: 1964-05-15
Abstract: A process for the electrophoretic coating of metal substrates with aluminium as broadly claimed in Specification 884, 797 is modified in that during the final heat treatment, or immediately thereafter before a substantial drop in temperature occurs, the stacked or coiled, coated substrate is placed in a gas tight enclosure in which the pressure is reduced to evacuate gas from between the layers of the coated substrate, e.g. to a pressure of about 2 cm. Hg, which enclosure is then filled with oxygen.  The temperature of the final heat treatment may be from 250 DEG C. to 500 DEG C.  The steps of evacuating the gas tight enclosures and filling it with oxygen may be repeated in turn.  The electrolyte for electrophoresis may comprise a suspension of finely divided aluminium in industrial methylated spirit containing water and nickel chloride.
Patent GB-789686-A (GB)
Title: A process of curing organosilicon compounds
IPC: B01J19/08
Filed: 1955-07-14
Abstract: An organosilicon polymer of the general formula <FORM:0789686/IV (a)/1> in which each R is a monovalent hydrocarbon or halogenated hydrocarbon radical, Y is an oxygen atom or divalent hydrocarbon radical, and n has an average value of 1.5 to 2.25 inclusive, at least a major portion of the R radicals being aliphatic hydrocarbon radicals, is cured by subjecting it to electromagnetic radiation of less than 3  in wavelength until the desired cure is obtained.  The siloxanes or silcarbanes may contain as R radicals methyl, ethyl, octadecyl, vinyl, allyl, propenyl, cyclohexyl, cyclohexenyl, phenyl, tolyl, xylyl, xenyl, trifluorovinyl, chlorophenyl, trifluorotolyl, chloromethyl or chlorohexafluorocyclopentenyl radicals.  The silcarbanes may contain as Y radicals ethylene, methylene, propylene, octadecylene, cyclohexylene, phenylene, diphenylene, ethynylene and vinylene.  Homopolymers, copolymers or mixtures thereof ranging from thin liquids to non-flowing solids may be cured. Types of suitable radiation are gamma rays and X-rays.  In examples, a mixture of a viscous dimethylpolysiloxane and fume silica was subjected to (1) radiation from cobalt; (2) X-rays, (3) radiations of increasing power, and (4) radiations of varying wavelength; (5) certain silcarbanes were subjected to X-rays.  The process is particularly suitable for the continuous curing of coated wire and electrical conductors.  Specification 757,024 is referred to.
Patent GB-1065264-A (GB)
Title: Internal combustion engine
IPC: F02B75/02
Filed: 1964-05-15
Abstract: 1,065,264. Direct injection engines. F.A. BIANCHI. May 15, 1964, No.20467/64. Heading F1B. A charge of compressed fuel-free air is discharged from reservoir 22 through port 24 into the cylinder, the discharge commencing before the exhaust port 14 in the head is completely closed and continuing after it is completely closed, and fuel is then injected into the cylinder. The air is maintained at constant pressure in reservoir 22 by a compressor 30 and the port 24 is controlled by a slide valve 26 operated by solenoids 27, 28 or cams. The reservoir 22 may be heated by coil 29, and the cylinder charge is ignited by a spark plug 18 or hot wire.
Patent GB-944778-A (GB)
Title: Method and apparatus for discharging tanks containing volatile liquids
IPC: F17C9/00
Filed: 1962-05-28
Abstract: 944,778. Pumping volatile liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 28, 1962 [May 30, 1961], No. 20482/62. Heading FIR. . A tank 2 containing volatile liquid at about atmospheric pressure is emptied by creating a reduced pressure in a separator 5 connected thereto, by condensing the vapour separated from the liquid in a heat exchanger 8. The heat exchanger may comprise a cylinder within the separator or, as shown, be separate therefrom. The condensate may be returned to the tank by a line 13, or discharged by a pump 14 to the outlet side of the liquid pump 11. The return line 13 may include a non-return valve 17 and/or be controlled by a hand or automatically controlled cock. Specification 904,382 is referred to.
Patent GB-638177-A (GB)
Title: Improvements in loft ladders and the like
Inventor: BERNER CORREZE AAGE OSCAR
IPC: E04F11/06
Filed: 1947-07-29
Abstract: 638,177. Ladders. LOFT LADDERS, Ltd. July 29, 1947, No. 20494. [Class 20 (ii)] The stowing of a loft ladder out of the way in the loft is controlled by two radius rods 2, 10 pivoted at 4, 11 respectively to the floor of the loft and connected to two angles of a triangular member 3, 8, 12 connected at the other angle 6 to the ladder 7. In the first part of the upward movement of the ladder, the triangle pivots about the axis through the pivot 11 under the control of the link 10 and in the second part of the movement the triangle pivots about the axis through the pivot 4 under the control of the link 2. The ladder is also guided by rollers 14 and has a lower section 13. Specification 392,940 is referred to.
Patent GB-679780-A (GB)
Title: Improvements in a hand carrier for containers
IPC: B65D71/50
Filed: 1950-08-18
Abstract: 679,780. Hand parcel &c. carriers. HOLMBERG, L. O. Aug. 18, 1950 [Aug. 19, 1949], No. 20516/50. Class 133 A device for carrying containers 12, 13, 14, 15; 16, 17 by their projecting top rims consists of a U-section part 21 having slots 22 and lips 27, the containers being tilted to insert their rims in the slots where they are retained by the lips 27 when upright and parallel .to the body part 21. A retractable handle or bail 32 has its ends in opening 30. The group of containers may be secured against lateral displacement by a strip of material 29.
Patent GB-780982-A (GB)
Title: Improvements in and relating to electric switching apparatus
IPC: H05G1/44
Filed: 1954-07-14
Abstract: 780,982. X-ray timers. GENERAL ELECTRIC CO. July 14, 1954 [July 14, 1953], No. 20601/54. Class 40 (3). [Also in Group XXXV] A contactor 30 controlling the high-tension supply to an X-ray tube 11 is closed following operation of a push-button 58, by conduction of a hard valve 61 controlled by a thyratron 66 and is subsequently opened, to terminate exposure, by operation of a contactor 41 which causes the valve to become non-conducting and which operates in response to conduction of a thyratron 42 controlled by an integrating exposure meter 38, 40. Operation of the pushbutton energizes a contactor 51 which, at contacts 53, prepares a circuit for energizing contactor 41 from a source 46 and, at contacts 54, prepares a circuit for energizing contactor 30 from a source 60. The anode circuit of thyratron 66 is also completed at contact 55, whilst operation of contacts 56, 57 modifies the bias applied to this tube which is then fired by an adjustably phased pulse applied over rectifiers 78, 78<SP>1</SP> supplied from a phase-shifting network 73-76. The voltage developed across a resistor 67 in the cathode lead of thyratron 66 is applied as positive bias to the hard valve 61 which thereupon conducts and closes contactor 30 to initiate exposure. Thyratron 42 is subsequently fired by the output voltage of meter 38, 40 and energizes contactor 41 which opens its contacts 48 to disconnect resistor 67 from the grid of valve 61. The valve ceases to conduct, contactor 30 is de-energized and the exposure terminated. By adjustment of the mechanical and electrical constants of the several contactors, adjustment of the phase of the firing pulses applied to thyratron 66 and adjustment of a time constant circuit 64, 65 associated with the grid of valve 61, the contactor 30 may be caused to close and open at current zero points in the supply cycle. In a modified system, the contactor 41 has normally open contacts and is energized to close its contacts upon operation of the push-button-controlled contactor 51. When thyratron 42 is rendered conducting it becomes a low resistance shunt on contactor 41 which, in consequence, drops out and opens its contacts. Specifications 747,722 and 752,971 are referred to.
Patent GB-741663-A (GB)
Title: Improvements in or relating to a process and compositions for treating wines to prevent clouding
IPC: C12H1/00
Filed: 1952-08-15
Abstract: In clarifying wine, brandy, whiskey and fruit juice, a potassium ferrocyanide solution containing in suspension a ferrous compound is added to the beverage and insoluble solids, e.g. precipitated complex compounds, are then removed, e.g. by decantation, filtration or centrifugation.  The solution may contain a dispersing agent such as bentonite, casein, agar-agar, gelatine, egg albumin and isinglass. Potassium ferrocyanide and a quantity of an iron compound sufficient to form an insoluble complex compound with all the ferrocyanide, may be added to the beverage.  The iron compound may be ferric and/or ferrous sulphate, ferric and/or ferrous chloride or ferric and/or ferrous hydroxide.  An aqueous mixture of potassium ferrocyanide, ferrous sulphate and an alkali, e.g. sodium hydroxide, having a minimum p.H. value of 7 and, preferably, a p.H. value between 9 and 10 may be added to the beverage.  Vinegar may be clarified also.
Patent GB-844272-A (GB)
Title: Improvements in or relating to refrigerator cabinets
IPC: F25B5/02
Filed: 1958-06-27
Abstract: 844,272. Refrigerating. ELECTROLUX Ltd. June 27, 1958 [July 1, 1957], No. 20667/58. Class 29 In a refrigerator having high and low temperature compartments 11, 10 cooled by evaporators 23, 21 respectively, a capillary section 27 is included in the supply pipe 22 to evaporator 23 and a vapour block is formed therein by a heater 28 when the temperature of compartment 11 reaches a predetermined minimum. Heater 28 is energized by a thermal element 33 responsive to the temperature of compartment 11. As shown, the system is of the compression type, the compressor motor being controlled by a thermal element 15 responsive to the temperature of compartment 10. Refrigerant flows from condenser 17 through a capillary 18 to a junction 19 whenceit flows in parallel through pipes 22, 20 to the evaporators, the outlets of which are connected to a common accumulator 24.
Patent GB-433241-A (GB)
Title: Catamenial sacks
IPC: A61F13/64
Filed: 1934-07-14
Abstract: 433,241. Catamenial appliances. VILLE, E. J. DE, 1, Ridge Avenue, Halethorpe, Maryland, U.S.A. July 14, 1934, No. 20675. Convention date, July 17, 1933. [Class 81 (ii)] A holder for supporting sanitary pads comprises an oblong body portion provided with straps adapted to retain a pad in position, both the body portion and the straps being formed integrally from a strip of material which is substantially the width of the body portion. The material may be thin rubber or like flexible material, and it is cut to form a blank comprising the body portion 1, Fig. 1, and strap portions 4 separated by folding-lines 3 along which apertures 2 are disposed. The straps 4 are folded along the lines 3 on to the body portion 1, and the ends 5 of the straps are folded over the edges of the body and vulcanized to its underside. The holder thus formed retains a sanitary pad 25, Fig. 2, the ends of the pad being placed beneath the straps 4 and the fastening tapes 10 passed through the openings 2. The edges 9 of the body portion may be cut away, as shown, to prevent direct contact between the material and the skin of the wearer. Alternative shapes for the cut-out blank are described in the Specification.
Patent GB-675953-A (GB)
Title: Improvements in or relating to a retractable car coupler
IPC: B61G7/08
Filed: 1948-08-05
Abstract: 675,953. Drawgear. NATIONAL MALLEABLE & STEEL CASTINGS CO. Aug. 5, 1948 [Aug. 9, 1947], No. 20691/48. Class 103(v) A retractable car coupler comprises a supporting member, a coupler pivotally connected directly to said member for swinging movement in a vertical plane, said coupler having a shank abutment means on said shank and on said member, and resilient means acting directly between the abutment means on said shank and on said member to counterbalance the coupler. In the embodiment shown the shank 20 of a coupler 12 is pivoted about a pin 22 retained by a bolt 25 in arms 15 of a member 14 which is mounted in the front of a locomotive 10. A removable pin 57 passes through the coupler in the retracted position shown or in the horizontal operative position: The coupler is counterbalanced by a spring unit comprising members 34, 40 axially slidable against the action of springs 35. The member 40 is pivoted at 44 to a tie 41 bridging the arms 15 whilst member 34 is pivoted at 37 to a lever 31. A bolt 48 allows adjustment of the lever 31 relative to the shank 20 about an axis 32 to vary the compression of springs 35. In a modification, Fig. 5, (not shown), the counterbalancing spring unit is disposed within a recess in the coupler shank.