baber/WOPTO huggingface dataset:
Patent GB-228887-A (GB)
Title: Improvements in color photography
IPC: G03C7/26
Filed: 1925-01-30
Abstract: 228,887. Kelley Color Laboratory, Inc., (Assignees of Kelley, W. van D., and Tronolone, D.). Feb. 5, 1924, [Convention date]. Colour photography.-In a process in which two complementary colour-record images are formed in the same colloid layer, one image is first printed, developed, and toned, the layer is cleared by treatment with a bath containing a bromide and a bichromate, and the second image is then printed in the residue of the sensitive layer without resensitizing, and is developed and toned. In an example, the first image is printed on the back of the layer through its transparent support from a red record negative, developed for three minutes with amidol, and toned in a bath containing vanadium oxalate, ferric-ammonium oxalate, oxalic acid, and potassium ferricyanide. The layer is cleared in a bath containing ammonium bromide and potassium bichromate. After washing and drying, and without resensitizing, the second image is printed on the front of the layer from a blue-green recordnegative, developed for three minutes with amidol, fixed in hypo, toned in a bath containing uranium nitrate, potassium oxalate, hydrochloric acid, and potassim ferricyanide and finally fixed in acid hypo.
Patent GB-396095-A (GB)
Title: Improvements in or relating to processes and apparatus for the distillation or deodorisation of liquids at low pressure
IPC: C11C1/10
Filed: 1932-01-29
Abstract: <PICT:0396095/III/1> <PICT:0396095/III/2> In the distillation of fatty acids, glycerine, &c., by steam under vacuum, a high vacuum is maintained by freezing out the steam in solid form after first condensing the distilled vapour and then withdrawing the residual gases by means of a vacuum pump.  The liquids are distilled in a still 11 by steam introduced through a pipe 12 and the vapours produced are liquefied in a condenser 13 and removed from a catch pot 14.  The steam passes on and is frozen out in one of two condensers 17, 18 used alternately, through the tubes of which liquid ammonia &c. is circulated.  The residual gases are extracted by the vacuum pump.  When the condenser 17 is filled with ice the steam is directed to the condenser 18 and the ice is thawed in the condenser 17 by circulating therethrough the warmed refrigerant from condenser 18. The cooling fluid is circulated through the apparatus by a double acting pump 25, Fig. 2, which compresses the ammonia and drives it through cooling coils 26.  The liquid ammonia is passed through a pipe 30 to the condenser 17 where it is vaporized in freezing the water.  It then passes back through a pipe 31 to the pump where it p is again compressed and circulated through a pipe 32 to a pre-cooler 22.  It is then again returned to the pump through a pipe 33 and after further compression is fed through a pipe 34 to a system of coils in the condenser 18 where it is re-cooled in thawing the ice and finally returned to the cooling coils 26.
Patent GB-510327-A (GB)
Title: Improvements in and relating to control systems for synchronous machines
IPC: H02P1/12
Filed: 1938-01-28
Abstract: 510,327. Synchronising. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 28, 1938, No. 2827. Convention date, Jan. 29, 1937. [Class 38 (iv)] [Also in Group XXXVII] A system for effecting the application of excitation to the field 4 of a synchronous machine 1 comprises a relay 10 operating in accordance with the frequency of current flowing in an impedance 7 connected in a closed circuit with the field winding, to connect a relatively low impedance circuit including a unidirectional current conducting device 14 across the field when the machine reaches a predetermined speed and the induced field current is in such a direction that it is blocked by the device 14, a switch 6 also being provided to disconnect the impedance 7 and the device 14, and energise the field, immediately after the induced field current reverses and starts to flow through the device 14. Upon closure of a switch 3 the machine 1 is energised and at a predetermined speed the relay 10 operating as described in Specification 384,567, energises a relay 13 which connects the device 14. At the next half-cycle of induced field current the impedance 7 is shunted by the device 14, and a relay 16 is de-energised and effects operation of the switch 6. As applied to a generator, Fig. 3, not shown, the switch 3 is closed by a centrifugal device. In this application the relay 10 is energised from the impedance 7 through oppositely connected unidirectional current conducting devices, the connection of one of these devices being opened by a time relay energised upon closure of the switch 3.
Patent GB-363199-A (GB)
Title: Pressure lubrication systems
IPC: F16C3/14
Filed: 1931-01-29
Abstract: 363,199. Force-feed lubricating. HUMBER, Ltd. and IRVING, J. S., Humber Works, Stoke, Coventry. Jan. 29, 1931, No. 2900. [Class 12 (iii).] Oil is supplied to the crank shaft bearings 3 of an internal-combustion engine through T-shaped members, the stems 14 of which fit into the bearings while their heads 12 are in sliding engagement with a common apertured pipe 8 supplied with oil from a pump through a " banjo " union 23 at one end of the pipe. The other end of the pipe may be connected by a sliding joint to the cam shaft, valve-gear, &c. Leakage from the heads 12 is prevented by annular sealing grooves 26. Similar grooves 29 are provided on the stems 14. The latter may be integral with the bearing caps 6 or may each have a flange 15 adapted to be bolted to the cap 6 or to a bridge member 16 secured to the cap. The apertures 9 in the pipe 8 are sufficiently large to maintain communication with the bearings as the heads 12 slide on the pipe due to expansion &c. In a modification, the pipe 8 is formed in sections, the ends of the sections lying within the heads 12 and being maintained spaced apart by screws mounted in the heads.
Patent GB-547465-A (GB)
Title: Improvements relating to motor vehicle clutches
IPC: F16D48/02
Filed: 1941-03-04
Abstract: 547,465. Actuating motor vehicle clutches. ROVER CO., Ltd., and IVERSEN, P. A. SCOTTMarch 4, 1941, No. 2920. [Class 80 (ii)] A motor vehicle clutch mechanism comprises a friction plate d which may be clamped between a flywheel g and pressure plate h by clutch engaging springs i and clutch disengaging mechanism comprising a pair of intercommunicating cylinders r, s, having pistons u, y, therein and connected by a flexible conduit t: The piston u is connected by a strut x to a pivoted lever v which actuates a slidable collar m, the latter being connected to the pressure plate h by pivoted levers k and links q. The piston y is actuated by a pedal 2 which is held in its inoperative position against a stop 4 by a spring 3. In this position a duct 7 makes communication between the cylinders s and a liquid reserve container 6. A non-return valve 8 also interconnects the cylinder s and container 6. The connection t adjacent the cylinder r embodies a non-return valve 10 byepassed by a restricted passage 11. Operation of the pedal 2 produces a corresponding movement of the piston u and hence separation of the clutch friction surfaces. Upon release of the pedal 2 the clutch engages gradually due to the restricted passage 11 and the valve 8 permits of flow from the container 6 into the cylinder s and thus avoids the entry of air into the fluid system. Specification 501,312 is referred to.
Patent GB-775601-A (GB)
Title: Oil lubricating pump
IPC: F16N13/04
Filed: 1955-02-01
Abstract: 775,601. Reciprocating pumps. SATZGER, E., Feb. 1, 1955 [Feb. 16, 1954], No. 2935/55. Class 102(1) A lubricating pump comprises a metering piston 6 and a feed piston 7 the piston 6 delivering through a free dropping space 21, and an annular space 25 to an inlet port 23 controlled by the piston 7. A further separate port 27 permits air to flow back to the space 21. The piston 7 delivers through a U-shaped passage to a discharge valve 28, the chamber 32 in the passage being of a volume at least equal to the maximum delivery by the metering piston on one stroke of the piston 7. The piston 6 is slidable within a cylinder 5, provided with inlet, and outlet ports 8, 16, reciprocated by a cam 3. The piston 6 engages a shoulder 14 on the out stroke of the cylinder 5 and on the delivery stroke engages an adjustable stop screw 15.
Patent GB-1043471-A (GB)
Title: Electric toaster and heating unit therefor
IPC: A47J37/08
Filed: 1965-01-22
Abstract: 1,043,471. Toasting apparatus. SUNBEAM CORPORATION. Jan. 22, 1965 [July 7, 1964], No. 3022/65. Heading A4D. The heating unit of an electric toaster comprises a hollow rectangular frame member 50 of sheet metal with a top member 50a, a bottom member 50b interconnected by integral parallel ribs 50c, 50d defining bread guides, the frame supporting a mica insulating member which has tabs 52a received in notches in the frame members 50a, 50b and has notches to receive a resistance wire of ribbon form wound thereon in zig-zag fashion. The bread rack 63 has its vertical movements controlled by a conventional spring and dash-pot mechanism and the toasting interval is controlled by a surface temperature thermostat and a colour control device including a bi-metallic element 145 disposed parallel to a bread slice and responsive to radiant energy received directly from the bread slice.
Patent GB-606160-A (GB)
Title: Plastic deformation of metals in the cold
IPC: C10M105/52
Filed: 1946-01-30
Abstract: A lubricant for use in the cold plastic deformation of metal comprises a paraffin modified by halogenation, preferably chlorinated paraffin wax, the extent of chlorination being between 25-48 per cent.  Minor amounts of other lubricants may be added. Specification 452,914 is referred to.
Patent GB-138622-A (GB)
Title: Method of recovering tin from stanniferous waste products
IPC: C22B25/06
Filed: 1920-02-02
Abstract: Tin waste materials containing tin in the form of sulphide, oxide, oxychloride, &c. are dissolved in hydrochloric acid in presence of an oxidizing agent such as nitre or chlorine and heat, and the solution is then reduced to obtain stannous chloride by means of tin waste containing metallic tin, such as tin-plate. The stannous chloride solution is electrolyzed, using carbon or scrap tin or iron-tin alloy as anode and sheet iron or tin as cathode.  The electrolysis is started at 0.5-1 volt and is interrupted when the pressure rises to 2 volts.  The spent electrolyte, in presence of an oxidizing agent, is then used as solvent for the waste tin compounds, and the process is continued as above described.
Patent GB-639695-A (GB)
Title: Improvements in comestibles and an improved method and apparatus for coating the same
IPC: A23G3/28
Filed: 1948-02-03
Abstract: 639,695. Coating bakers' goods. MONACO, G. C. Feb. 3, 1948, No. 3184. [Class 28(i)] Comestibles S on a conveyer B are coated with a viscous coating I by means of a roller 40, rotated in the direction indicated at A, whereby the coating is stretched at the point where the roller and comestible surfaces part so as to cause portions of the viscous coating to snap and fall back on to the coated surface of the comestible giving rise to ridges forming a random pattern on the surface. The portion of coating material which snaps back on to the roller is carried back into the hopper H formed by inclined walls 58, 60. The wall 58 is positioned to the right of the axis of the roller as shown to assist in returning unused material to the hopper. The wall 60 is adjustable by means of a doctor blade 66 to vary the amount of material carried by the roller; the speed of the roller and the conveyer belt being also variable to effect variations in the pattern produced. In a modification the controlling edge of the doctor blade 66 is fitted with a notched blade 142 to cause the coating material to be applied in narrow stripes. A reciprocating movement, the rate of which may be varied, may also be applied to the doctor blade to give a sinusoidal striped effect on the surface of the comestible.
Patent GB-123312-A (GB)
Title: Improved Regulating Device for Internal Combustion Engines.
IPC: F02D11/00
Filed: 1919-02-10
Abstract: 123,312. Munktells Mekaniska Verkstads Aktiebolag. Feb. 9, 1918, [Convention date]. Cam-actuating pumps; stroke, varying. - Relates to the regulation of internal-combustion engines by varying the stroke of the liquidfuel pump by means of the governor. Fig. 1 shows one form of device in which a shaft 1, rotated by the engine, carries a cam 9 on which bears a roller 8 carried by a slide 3. The move. ment of this slide effects the delivery-stroke of the pump-rod 4 against the action of a spring 6. The suction stroke is effected by the spring 6, its length being determined by a conical roller 11 carried by the slide 3 bearing) on a conical roller 12 axially adjusted by a lever 13 connected to the governor. In a modification, Fig. 3, the roller 11 is carried by a separate slide 14, so that it is always in contact with the roller 12.
Patent GB-408778-A (GB)
Title: Improvements in reciprocating pumps
IPC: F04B53/12
Filed: 1933-02-03
Abstract: 408,778. Reciprocating pumps. CLARKE, J. H., 104, Victoria Street, London. Feb. 3, 1933, No. 3363. [Class 102 (i).] A pump having no clearance between the plunger and cylinder end comprises an inlet port 32 at one end of the cylinder, a discharge valve 24 constituting the other end of the cylinder and an automatically acting transfer valve 21 mounted in the piston.
Patent GB-324241-A (GB)
Title: Improvements relating to brackets for bedstead frame members
IPC: F16B12/58
Filed: 1929-02-01
Abstract: 324,241. Bullock, E. Feb. 1, 1929. Brackets.-A bracket is made from a sheetmetal blank which is bent along a line 6 to form two parts 3 and 4 at right angles, portions 3a and 4a of these parts being subsequently bent at right angles, as shown in Fig. 4, to form attachment portions. The blank is cut for a distance along the line 6 before or after the first bending operation in order that the second bending operation can be carried out. The portion 4a may be provided with an extension 7 which is bent at right angles to the part 4a so that a lug 8 on the extension engages a notch 9 in the part 3. Specification 306,631 is referred to.
Patent GB-270400-A (GB)
Title: A new or improved fuse for use with thermionic valves
IPC: H01R33/76
Filed: 1926-02-06
Abstract: 270,400. Willmott, F. J. Feb. 6, 1926. Fusible cut-outs.-A fuse wire 14 is secured at one end by a peg 16 to a conducting tube 9, and at the other end by a peg 15 to a cap 6 which is screwed or pushed on to the shortened leg 4 of a thermionic valve, and is riveted to a member 8 attached to, and insulated from, the flanged upper end of the tube 9. A glass or other transparent tube 17 may be mounted in the tube 9 which may be slotted. In a modification, a fuse element of the type having a tubular glass enclosure with metal caps is mounted in a conducting tube, one cap making connection with the tube by a spring, and the other cap bearing against a shortened valve leg.
Patent GB-918807-A (GB)
Title: Non-corrosion solder for light metal alloys
IPC: B23K35/26
Filed: 1961-01-30
Abstract: An alloy suitable for soldering aluminium, its alloys and other light metals and alloys contain in percentage by weight: .Ag.-.-.-.1.5-3 .Sn.-.-.-.72-94 .Cu.-.-.-.1-3 .Al.-.-.-.6-9 .Si.-.-.-.0.2-0.4 .In.-.-.-.0.1-0.3 .Cd.-.-.-.3-5
Patent GB-307589-A (GB)
Title: Improvements in or relating to cigarette making machinery
IPC: A24C5/39
Filed: 1928-02-03
Abstract: 307,589. Molins, W. E. Feb. 3, 1928. Cigarette-making machines.-In a tobaccofeeding hopper, the brushing roller is rotatably mounted so as to yield relatively to the combing roller if a hard body is fed with the tobacco, and the yielding movement may be utilized to stop the feed rollers or the whole machine. The invention is shown in a hopper feed of the kind described in Specification 249.575, comprising a feed roller 1, carded combing and brushing rollers 2, 3, a picker roller 4, and a distributor roller 5. The roller 3 is carried in pivoted links 6 held in working position by a spring 7 and connected by linkage 9 - - 13 to a pivoted latch 14. When the roller 3 is raised by a hard body in the tobacco, the latch 14 releases a pivoted arm 16, which trips the driving pawl 20 for the feed roller 3, disengaging it from the ratchet 22 and so stopping the feed. The movement of the arm 16 is limited by a stop screw 18. In a modification, the movement of the roller 3 is used to make or break an electric circuit and so stop the motor and apply a brake.
Patent GB-564901-A (GB)
Title: Improvements in or relating to wheels for vehicles
IPC: B60B9/04
Filed: 1943-03-02
Abstract: 564,901. Spring vehicle wheels. GIBSON, F. C. March 2, 1943, No. 3450. Convention date, Nov. 9, 1942. [Class 144 (i)] Single or laminated quarter-elliptic tangentially-arranged springs 6 are immovably secured to an outer rim 4, their inner ends being connected to links 10 pivoted to brackets 12 secured to an inner rim 3 which either forms a permanent part of the wheel or, as shown, is attachable to an existing wheel rim, as by clips 2. The reaction of the springs tends to maintain the links in radial directions. As shown, the links consist of spaced parallel side members connected by two pivot pins, and are pivoted between side cheeks of the brackets 12 which maintain them against lateral displacement. Two or more rings of spring members 6 may be used. A rubber or other tyre 5 may be provided. Annular cover-plates 15, 16 are secured to flanges on the rims 3, 4 respectively, a sealing ring 19 being secured to each plate. 16 and held in sliding contact with the plate 15.
Patent GB-789217-A (GB)
Title: An improved method of bringing together and moving apart the parts of an electric cable coupling and a tool for use in such method
Inventor: ORTON WILLIAM HAROLD
IPC: H01R13/621
Filed: 1954-02-05
Abstract: 789,217. Cramps. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 4, 1955 [Feb. 5, 1954], No. 3458/54. Class 61. A cramp for moving the parts 11 of an electric cable coupling towards or away from one another comprises a screwed spindle 1 having right and left hand threaded portions each carrying a nut 4 provided with a projection or recess of dovetail section extending at right angles to the longitudinal axis of the screw for engagement with complementarily shaped portions of the coupling parts. As shown, each nut comprises a rectangular portion having on one side a bar-like projection 8 of dovetail section. A plate 9 is screwed at 10 to one end of each nut. The spindle 1 is rotated by a tommy bar 6.
Patent GB-143483-A (GB)
Title: Improvements relating to cigar and cigarette holders
IPC: A24F13/10
Filed: 1920-02-04
Abstract: 143,483. Currant, E. W. Feb. 4, 1920. Cigar and cigarette holders.-A sliding ejector j, for discharging the fag end of a cigar or cigarette, is formed with an operating knob k and a pin or projection m, and slides in slots h, g in the holder a and a clip or ferrule b.
Patent GB-284681-A (GB)
Title: A heating apparatus supplied with lighting gas
IPC: F24C3/00
Filed: 1928-02-03
Abstract: 284,681. Turpin, F. A. Feb. 3, 1927, [Convention date]. Gas heating-stoves.-A gas stove comprises two casings a, b connected at the top and spaced apart to allow air to flow upwardly between them, the casing a forming a combustion chamber for the gases from a burner k arranged below it, and the casing b being provided with baffles m, n, o around which the gases pass to the outlet j. In the construction shown the casings, which are of flat rectangular shape, are connected at the top by tubes d, and are mounted parallel to each other on a pedestal c which carries the burner k and is provided with openings g, f communicating respectively with the casing a and the space between the two casings. A lighting aperture h is provided in the casing a.
Patent GB-1175416-A (GB)
Title: Impedance Matched Periodic Slow Wave Structure
IPC: H01J23/36
Filed: 1967-01-24
Abstract: 1,175,416. Velocity-modulated tubes. THOMSON-VARIAN. 24 Jan., 1967 [26 Jan., 1966], No. 3590/67. Heading HID. A coupled resonator slow-wave structure, each partition of which is provided with a beam passage aperture and eight radial coupling slots-e.g. a clover leaf structure, or a polystyle structure as disclosed in Specification 1,149,311-includes a final cavity 17 coupled to a waveguide 7 and impedance matched thereto by two first conductive cylindrical posts 27, 28 and two second conductive posts 29, 30 disposed in the final cavity, one in each of the alternate sectors defined by the coupling slots 15, 25, parallel to the axis, and with the two pairs, as shown, parallel to the transverse section of the waveguide, the second posts being nearer to the waveguide, of larger diameter, and spaced farther apart, than the first posts, and having a cross-sectional shape which includes a part-circular portion and a flat portion. As shown, the second posts 29, 30 may be cut to conform with the adjacent coupling slots where they overlap the latter. All the posts 27 ... 30 may project beyond the end wall of the final cavity into a water jacket through which coolant is circulated (Figs. 1, 8 and 9, not shown). Dimensions are given.
Patent GB-327793-A (GB)
Title: Improvements in or relating to gliding water craft
IPC: B63H1/38
Filed: 1929-02-02
Abstract: 327,793. Ramirez, R. Feb. 2, 1929. Driving-arrangements. - Water-craft driven by a pair of spirally-vaned rotatable floats 2 has the power units contained within the float. The floats rotate about beams 4 forming part of the fixed framework. The motors M are mounted on the beams and drive the floats through the pinion 8 and pinion 9 carried by the float. Air inlet pipes 18 and exhaust pipes are provided for the motors and the engine controls are led through the hollow beam 4 to the forward cabin.
Patent GB-753990-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B21/00
Filed: 1954-02-08
Abstract: 753,990. Rolling. AKTIEBOLAGET SVENSKA METALLVERKEN. Feb. 8, 1954 [Feb. 10, 1953], No. 3624/54. Class 83 (4). In a pilger rolling mill of the type having a pair of complementary taper grooved rolls 9, 10, which are reciprocated and simultaneously rocked, the rolls are journalled one above the other in bearing blocks 1, 3 and supported by wheels 21 freely or fixedly mounted on the upper roll shafts 7 and running on horizontal rails 23. The assembly is reciprocated, by pairs of connecting rods 34, 38 on each side pivoted on the shafts 7, 8 of the upper and lower rolls and driven from intergeared crank discs 43, 45. Oscillation of the rolls is obtained through gears 26, 30 on the ends of the roll shafts and engaging racks 28, 32 which are adjustable in position to suit the roll pass and provide correct tooth engagement. The upwardly facing racks 28 may be integral with the rails 23 and the diameter of the wheels 21 is made equal to the pitch diameter of the teeth which is preferably of a value between the maximum and minimum pitch diameter of the roll grooves.
Patent GB-885295-A (GB)
Title: Improvements in or relating to vertical water-tube boilers
IPC: F22B13/10
Filed: 1958-02-04
Abstract: 885,295. Steam generators and hot-water boilers. MARSHALL & CO. (MOTHERWELL) Ltd., JOHN, and McGILL, D. M. Jan. 29, 1959 [Feb. 4, 1958], No. 3689/58. Classes 64(1) and 123(2) In a vertical boiler with a flue 12, three inclined nests 13 of tubes with end headers 14 and a tube 16 extend diametrally across a cylindrical firebox 11 between opposite sides of the water-jacket of the boiler. Opposite each header 14 is a door 15 in the shell 10 for access to the nest, e.g. for replacement.