baber/WOPTO huggingface dataset:
Patent GB-524087-A (GB)
Title: Improvements in photographic emulsions suitable for producing direct positives
IPC: G03C1/485
Filed: 1939-01-21
Abstract: 524,087. Photographic emulsions for the production of direct positives. KODAK, Ltd. Jan. 21, 1939, No. 2124. Convention date, Jan. 22, 1938. Drawings to Specification. [Class 98 (ii)] A gelatino silver halide emulsion for the production of direct positives contains a non- acid optical sensitizing dye in an amount approximately 1¢ to 4 times that necessary to give optimum sensitizing for making negatives and a photographic developing agent. The emulsion is not fogged prior to exposure, but may be flashed after coating or drying. The sensitizing dyes may be of the cyanine, carbocyanine, thiocarbocyanine, merocyanine, hemicyanine, hemioxonol, and styryl classes. The developing agent may be p-phenylenediamine or its substitution products, p-aminophenol or its substitution products, hydroquinone, pyrogallol, or p-hydroxyphenylglycine. The amount of sensitizing dye is always in excess of the amount of developing agent. In examples, to a gelatine silver bromide-iodide emulsion may be added (a) 2:21-dimethyl-8- ethylthiocarbocyanine iodide, 2-[4-(1-piperidyl)- #-1:3-butadienyl]-#-naphthathiazole ethiodide and p-phenylenediamine, (b) 3-ethyl-5-γ-(1- piperidyl)-allylidenerhodanine and hydroquinone, (c) 3 - ethyl -1 - phenyl - 5 - γ - (1 - piperidyl) allylidene-2-thiohydantoin and phydroxyphenylglycine, (d) 5-(2-ethyl-1-benzoxazylideneethylidene) - 3 - ethylrhodanine and monomethyl-p-aminophenol sulphate, (e) 6- methyl-2:1<SP>1</SP>-diethyl-3:4-benzthia-2<SP>1</SP>-cyanine iodide and dichlorohydroquinone. and (f) 4- methyl-2-p-diethylaminostyrylthiazole ethiodide and pyrogallol. 2:21-diethyl-8-methylthiacarbocyanine iodide may also be used. Developers having a low sulphite content are preferably employed. The emulsions may also be used in the production of negatives.
Patent GB-779710-A (GB)
Title: Improvements in or relating to root crop harvesting machines
Inventor: STOLL WALTER
IPC: A01D25/02
Filed: 1955-01-24
Abstract: 779,710. Root-crop harvesters. STOLL, W. Jan. 24, 1955, No. 2134/55. Class 6(3). A root-crop harvester comprises lifting prongs 2 flanked by a vertical disc 5 and an oblique rotary spider 3, the excavated material being fed to a driven openwork drum 1 rotating on a longitudinal axis in line with the lifting prongs 2. The disc 5 is sharpened so as to enter the ground to define the edge of the dug area and may be dished, Fig. 8 (not shown). The spider 3 has curved tines 13 and its axis 4 is inclined both laterally and rearwardly to the vertical. A grating 10 is mounted above the spider to define a passage for the crop which increases in cross-section rearwardly and upwardly. The spider and drum are both positively driven.
Patent GB-260816-A (GB)
Title: Improvements in or relating to controllers for electric motor driven devices
IPC: H02P1/04
Filed: 1926-01-25
Abstract: 260,816. Lockett, R. G. Jan. 25, 1926. Push-button control systems; systems control. ling travel for a fixed distance.-Relates to control mechanism for electric motors operating devices such as rotary washing drums which have a number of compartments and require to be stopped in a number of positions. The control mechanism comprises a reversing and accelerat. ing controller-drum 10 driven by a pilot motor M<1>, and a positioning-switch 25 co-operating with a group of contactors 23a - - 23<g> cam-driven from the rotary washer 12. When started by momentary closure of a push-button switch 6, which determines the action of a relay 8 and a main switch 9, the pilot motor continues to rotate the controller drum and the main motor M<1> continues to perform the operations of starting, accelerating, slowing, and reversing, so as to keep the washing drum 20 at work for an indefinite period. When a stop-button 7 is pressed momentarily, the relay 8 is opened and the main switch maintaining coil 9<a> is, in consequence, left in a circuit which is subsequently opened automatically at an instant determined by prescribed running conditions ; these being the attainment of the full-acceleration stage of the control drum and the simultaneous arrival of the washing drum at a suitable position for unloading. Pairs of switches C, C and 24a, 24b are disposed so that one of each pair opens when one of the given conditions is fulfilled. The main motor M is thus stopped as required in a given position. In order to obtain a further action of the main motor terminating in a different set position, for example one of the loading positions, the opening of the switch 9 causes the pilot motor to carry on the controller drum to the slow running position and to stop it there. The positioning switch 25 is then set manually on one of the contacts 25<c> - - 25g, thus reclosing the main switch and causing the main motor to run slowly until it arrives at the position corresponding to the selected contact. In each case the opening of the main switch deenergizes a coil 31 normally holding off a brake. Full operation can be resumed at any time by depressing the botton 6.
Patent GB-413739-A (GB)
Title: Improvements relating to methods of and apparatus for preheating material to be supplied to rotary kilns
IPC: F27B7/20
Filed: 1933-01-23
Abstract: 413,739. Preheating means for rotary kilns. LARSEN, A., R÷rdal Aalborg, Denmark. Jan. 23, 1933, No. 2213. [Class 51 (ii).] Material, e.g. cement raw material, to be treated in a rotary kiln is preheated in a stationary container situated in the flue from the kiln. Waste gases from the kiln pass into the container through openings in the bottom, and so through the material, which is agitated by a stirrer running at low speed. Carrier bodies, such as iron balls or chains, may be provided in the container. In the form shown, the material is fed through a pipe 19 on to a layer of loose bodies supported by a perforated trough 17. A rotary stirrer 18 consists of a rotary shaft carrying apertured transverse discs 3 interconnected by rods 5. The shaft may be placed eccentrically in the trough, and may be provided with scoop conveying means, or the parts of the discs between the apertures may be in the form of inclined planes. The material passes through the layer of moving bodies, and then in countercurrent to the waste gases into the kiln. Fuel for the kiln is supplied through a pipe 16.
Patent GB-895728-A (GB)
Title: Improvements in or relating to variable-speed gears
IPC: F16H3/36
Filed: 1959-01-21
Abstract: 895,728. Change - speed gear. SOC. D'ETUDES, D'INVENTIONS ET DE BREVETS. Jan. 21, 1959 [Jan. 21, 1958], No. 2282/59. Class 80 (2). A variable-speed gear has a tumbler pinion 10 selectively engageable with the gears of a stepped driving cone 1 and geared to a pinion 6 feathered on a driven shaft 4, and the pinion 10 is carried by a lever 7 pivotally and slidably mounted on the driven shaft and adjusted by a nut 14 on a screwed spindle 15 which is rotated about an eccentric axis. In order to improve the mesh of the tumbler pinion with the gears of the cone when the apex angle of the cone is greater than 20 degrees the tumbler is not displaced uniformly for each step of the cone. As shown in Figs. 1 and 3 this is accomplished by giving the spindle 15 a suitable curvature. The lever 7 is connected to the nut by means of a projection 14a on the nut engaging a slot in an arm 7b of the lever, a spring 21 maintaining the lever in contact with the nut and yielding on abutting of the gear teeth. In the embodiment of Fig. 9 the tumbler lever C is slidably pivoted about an axis D and is connected by a rod M to a nut E on an eccentrically rotated spindle F the axis of which is straight and parallel to its axis of rotation. In order to improve the mesh the spindle is rotated through less than 360 degrees for every step of the cone, this is effected by gearing of a suitable ratio connecting the spindle to a shaft which is rotated through 360 degree. In a modification the spindle is rotated through 360 degrees and satisfactory mesh is obtained by the correct disposition of the spindle and the correct length of rod M. Specification 577,032 is referred to.
Patent GB-249082-A (GB)
Title: Improvements in press pot and process of making same
IPC: B23P13/00
Filed: 1926-01-26
Abstract: 249,082. Carver, r. S. March 14, 1925, [Convention date]. Oil - passes. - Press pots are made by forging and machining as distinct from casting. A body is formed as a ring 10 with a heavy annulus 12, as by means of dies or by piercing and rolling a ring, fiats 14 are machined off on opposite sides, and the guide lugs 18 secured thereto, e.g. in slots 16 by welding or by pins. A vertical slot 22 is then cut in the edge of the annulus 12, and the stop 24 and the handle 26 secured therein by a bolt 28.
Patent GB-862594-A (GB)
Title: Improved optical projection apparatus
IPC: G09F9/40
Filed: 1958-01-24
Abstract: 862,594. Optical-projection apparatus. GUMPERTZ, D. G. Jan. 24, 1958 [Jan. 31, 1957], No. 2428/58. Class 97(1) A projection unit comprises a plurality of converging optical systems projecting into superposition on a screen 18 and includes an approximately spherically curved transparent plate 58 or 66 carrying lenses 60, 68 aligned with the axes of the projection systems. The lenses may be formed integrally with or attached to the curved plates. In the form shown each system includes one of a group of lamps 42 arranged in horizontal and vertical rows and separated by the partitions of a spacer member 56. The lamps at the periphery of the group are located forwardly by spacers 46. The systems project into superposition on the screen 18 from transparencies at the plate 58 aligned with the lenses thereon. The transparencies may be formed on a film attached to the plate or painted directly on the plate. A selected transparency is projected by lighting the appropriate lamp. Several units may be juxtaposed so that, for example, the separate digits of a number may be displayed.
Patent GB-450920-A (GB)
Title: Improvements relating to the continuous production of long lengths of rubber or the like material
Filed: 1935-01-22
Abstract: 450,920. Moulding rubber &c. in long lengths. INTERNATIONAL LATEX PROCESSES, Ltd., 10, Lefebvre Street, St. Peter Port, Guernsey. Jan. 22, 1935, No. 2463/36. Convention date, Feb. 24, 1934. Divided out of 450,845. [Classes 70 and 87 (ii)] Long lengths of rubber or like material are produced by introducing aqueous dispersions of rubber &c., treated so as to set or gel in the cold or by heating, into one end of an openended mould composed of a plurality of endless belts &c. which move at substantially equal speeds over mutually exterior and only in part adjoining paths, the dispersions being set therein and the solidified product continuously withdrawn from the other end. In one form of apparatus, Fig. 1, a belt 1 is provided with side walls formed of elementary laths 4. A second belt 2 forms the cover for the mould. In a modification, Fig. 3, the mould may be formed of four endless belts 6-9. One or more of the mould surfaces may be provided with patterns, cores, &c. attached thereto or integral therewith, for instance in making cellular rubber upholstery. The belt forming the base of the mould may have longitudinal separator walls to form several articles simultaneously. The aqueous dispersion is poured on to the uncovered end of the mould and the other end of the mould may be provisionally closed until the dispersion has solidified. The belts may pass between heating or cooling means to accelerate setting and vulcanizing may also be performed. Specification 450,845 is referred to.
Patent GB-616787-A (GB)
Title: Arterial embalming fluids
Filed: 1945-01-31
Abstract: An embalming fluid comprises an aqueous solution of a preserving agent, and a fluorescent substance colourless in visible light at the dilution used, but in sufficient concentration to indicate visibly through the skin the penetration of the fluid within the body when this is subjected to ultra-violet light, preferably of 3,200 - 4,000 A.  A small quantity of a coloured fluorescent substance may also be present to give a cosmetic effect.  Prior to the embalming operation the veins may be injected with a solution of anticoagulant, e.g. sodium citrate, and a wetting agent.  Examples of embalming fluids are given specifying formaldehydex sodium nitrate, sodium tetraborate, sodium hydroxide, phenol, citric or tartaric acid, glycerine or sodium lauryl sulphate, and as the fluorescent agent a phenol or derivative of dyhydrothio para toluidine, both of a specified structural formula.  The pH is adjusted by the addition of acid or base to 8.  The structural formula of a coloured fluorescent agent is also given.  The fluid may also be used for preserving parts of animal bodies.
Patent GB-641688-A (GB)
Title: Honing machine
IPC: B24B33/06
Filed: 1948-01-27
Abstract: 641,688. Honing-machines. FULMER, C. A. Jan. 27, 1948, No. 2478. Convention date, Feb. 25, 1941. [Class 60] [Also in Group XXIX] A honing-machine comprises a tool 24 rotatably connected by a coupling 27 to a hydraulic means 26, a hydraulic valve control means 64 and an oscillating disc 46 mounted adjacent thereto and carrying stops 53, 54, 55 to engage it directly, a pinion 36 meshing with a rack 32 fastened to the coupling 27, and geared connections between an elongated drive shaft 42 and the pinion 36 and between the lower end of the shaft 42 and the disc 46. The honing- spindle 16 is rotated at a controlled speed by an electric motor driving through bevel gears 18 and is reciprocated by a piston 28 to which it is attached by the coupling 27 which permits rotation of the spindle 16 only. The stops 54 and 55 are oscillated by the rack 32 to actuate the valve 64 (see Group XXIX) and reverse the direction of piston travel. The stop 55 may be manually moved to an inoperative position to allow the stop 53 to actuate a valve 58 to stop the piston at its upper limit of travel and the hone at its upper inoperative position. To restart the cycle of reciprocations, the valve 64 is actuated manually and the stop 55 returned to its operative position. An adjustable counterbalance valve holds the piston 28 in position if the electricallydriven pump 80 and the spindle motor are switched off. The speed of piston travel is adjusted by valves in the hydraulic circuit but a compensating valve ensures a constant speed in each direction at any setting.
Patent GB-1011044-A (GB)
Title: Railway-vehicle braking systems
Inventor: WASHBOURN JACK
IPC: B60T15/18
Filed: 1963-01-21
Abstract: 1,011,044. Air braking system. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Jan. 8, 1964 [Jan. 21, 1963], No. 2499/63. Heading F2F. To prevent loss of braking power due to air leakage from the auxiliary reservoir of a pneumatic train-braking system including a triple valve assembly, a maintaining valve is provided which controls a connection between' the brake pipe and the auxiliary reservoir, the valve being controlled by the difference in pressure between a quick service bulb and the auxiliary reservoir. The reservoir pressure acts under diaphragm 6 through passages 7, 2 and 1, pressure from the quick-service bulb acting above the diaphragm through passage 5. The upper end of the diaphragm spindle 8 abuts a resilient valve seat 3 to control communication between the auxiliary reservoir connection 1 and the brake pipe connection 4. When the brake is released the quick service bulb pressure is atmospheric and the valve is closed by the reservoir pressure below the diaphragm. At brake application the brake pipe and bulb pressure will be slightly below the auxiliary reservoir pressure after the triple valve has lapped off and valve 3 remains closed. If leakage from the reservoir now occurs the balance of the triple valve diaphragm is upset and it moves to close the connection between the bulb and the brake pipe, but the maintaining valve diaphragm falls to connect passages 1 and 3, air flowing from brake pipe to reservoir.
Patent GB-1082454-A (GB)
Title: A material handling system
IPC: E21F13/02
Filed: 1965-01-20
Abstract: 1,082,454. Endless conveyers. HEWITT-ROBINS INTERNATIONAL S.A. Jan. 20, 1965 [Jan. 20, 1964], No. 2540/65. Heading B8A. A coal winning machine 34 is connected with a fixed conveyer 28 by an adjustable endless belt conveyer 84, in conjunction with one or more adjustable endless belt conveyers 86. The junction between the conveyers 84 and 86 is effected by a carriage 174 which pivotally supports at 154, 156 (Fig. 20, not shown) bearing members 140, 142 on an end frame member 130 of the conveyer 84. In addition relative angular movement of the conveyer 84 about a longitudinal axis is provided by a pivotal connection 106, 132, between a frame member 98 rigid with the frame of the conveyer 84, and the member 130. Each carriage 174 has a shoot 200 for directing coal from its associated conveyer on to the next conveyer downstream. The carriage 174 at the end of the conveyer 86 which feeds into the fixed conveyer 28, has steerable, ground-engaging, power-driven wheels 298. The driving power is obtained from individual hydraulic motors fed by a pump 306 (Fig. 10, not shown) driven by an electric motor 304. The carriage 174 of each remaining conveyer 84 or 86 has non-driven wheels 182 (Fig. 15, not shown) which run on the side frame members 94, 96, of the next conveyer downstream. Guides 188, 190 maintain alignment. This enables the conveyers to adjust relative to each other in telescoping manner (Fig. 26D, not shown). Each conveyer section 84 or 86 has steerable, driven, wheels 234, 236 at its upstream end. An hydraulic cylinder 268 (Fig. 7, not shown). operating through chains 274, 276 and sprockets 280, provides the power for steering. Individual hydraulic driving motors 256, 258 (Figs. 18, 19, not shown), are carried on the wheel assemblies. The hydraulic power is provided by the pump on the carriage 174 adjacent the conveyer 28.
Patent GB-607102-A (GB)
Title: Improvements relating to agitating apparatus
IPC: B01F15/00
Filed: 1946-01-25
Abstract: 607,102. Mixing-apparatus. BURNETT, A. C., and BURNETT & ROLFE, Ltd. Jan. 25, 1946, No. 2553. [Class 86] In apparatus for agitating liquids the shaft of a paddle or other agitator is mounted in a bearing in the wall of a vessel and is connected to its driving member by engagement between complementary screw threads on the shaft and driving member, respectively, which engagement tends to be tightened whilst the agitator is being driven. The agitator shaft 10, Fig. 1, is rotatably mounted in a bearing member 16 in the wall 11 of the vessel and a screw thread 17 at its outer end engages the internal screw thread of a driving member 18. A resilient ring 19 of rubber or similar material is bonded to the member 18 and to a ring 29 secured by screws to a sleeve 28. The latter is secured by interengaging screw threads to a sleeve 27 which carries a sprocket 25 driven by a chain, sprocket, and worm gearing from an electric motor mounted on the wall 11. During rotation of the agitator the screwthreaded connection between the member 18 and the shaft 10 tends to be tightened whilst the resilient ring 19 is stressed to urge the shaft 10 axially in an outward direction. The latter action assists in maintaining a' boss 36 on the shaft 10 in contact with a seating 37 at the end of the bearing member 16 to form a liquid-tight seal for the bearing. Alternative constructions are described in which the resilient ring 19 is replaced by a spring or by a Y-shaped resilient metal member.
Patent GB-524281-A (GB)
Title: Improvements in or relating to shaving brushes and other similar brushes
IPC: A46B15/00
Filed: 1939-01-25
Abstract: 524,281. Brushes. CULMER & SONS, Ltd., T. W., and CULMER, A. R. Jan. 25, 1939, No. 2635. [Class 19] Shaving and other brushes with a stock A made of mouldable material such as synthetic resin have the mouth B of the opening outwardly bevelled or bell mounted permitting expansion of the bristles when wet. Ribs C are placed in the lower opening to prevent the bristles twisting. Helical threads D at the lower end of the stock may be prolonged upwards into the widened opening of the stock.
Patent GB-674202-A (GB)
Title: Continuous film-feed cinematograph apparatus
IPC: G03B41/10
Filed: 1950-02-01
Abstract: 674,202. Kinematograph apparatus. SERRA, V. Feb. 1, 1950, No. 2664/50. Class 97 (i). In continuous feed apparatus wherein the light beam is reflected successively from two oscillating mirrors for optical compensation, the axis of one of the mirrors is also displaced periodically to maintain the optical path length constant. As shown, the film 1 is fed downwards past an aperture 3<SP>1</SP> of at least double the frame height, in the gate 3. The shutter 10 is formed with a spiral slot having a radial width approximately equal to the frame height. The shutter turns once during the passage of one frame and the part of the slot at the gate follows each frame in turn. The light beam is reflected successively from mirrors 4, 6 pivoted at 5, 7 and oscillated in parallelism by cam followers 5<SP>11</SP>, 6<SP>11</SP> on arms 5<SP>1</SP>, 6<SP>1</SP>, the followers engaging slots in a cam on the shaft 8. The rotational speed and profile of the slots in the cam provide a compensating movement with a quick return. The pivot 5 is eccentrically mounted in a pivoted bush 15 provided with an arm 151 and cam follower 15<SP>11</SP> engaging a further cam slot. The cam slots are of tapered cross-section, the upper part being laterally offset relatively to the bottom part. Each cam follower consists of a pair of coaxial tapered rollers engaging, respectively, opposite sides of the two parts of the slot.
Patent GB-1534968-A (GB)
Title: Magnetoscopic testing of complex components
IPC: G01N27/84
Filed: 1976-01-23
Abstract: 1534968 Magnetic flaw detection SOC NATIONALE INDUSTRIELLE AEROSPATIALE 23 Jan 1976 [27 Jan 1975] 02736/76 Heading G1N Components, p, for magnetic flaw inspection, are carried on respective trays P by a conveyer T through a plurality of magnetization stations M 1 , M 2 , M 3 , display stations V 1 , V 2 , V 3 , a washing station L and a demagnetization station E. Before entering the first and third magnetization stations each component is spinkled, from respective devices R 1 , R 2  with a magnetoscopic indicator in the form of a liquid suspension of coloured or fluorescent iron oxide particles. The first magnetization station includes a solenoid 1 of which the internal height h is variable by wheel 5 and threaded shafts 4. Each tray with its component is conveyed through the solenoid on rails 2a, 2b. The solenoid is energized with a pulsed current of 8000 amps obtained by rectifiying a single half wave of A.C. Additional magnetoscopic indicator is applied to the component in this station from a sprinkler 6. Each of the display stations comprises a source of visible or ultraviolet light depending on the nature of the magnetoscopic indicator. The second magnetization station M 2  is arranged to magnetize the component with a magnetic field which is directed perpendicularly in some parts of the component to that to which the component was exposed in the first magnetic station. For testing components having horizontal and vertical through-bores 16a, b, metal pins 11a, b are inserted through these bores to complete a current-carrying path with jaw 13 and with a metal sheet on the tray P respectively. The pins 11a, b are hollow and perforated whereby the bores 16a, b are sprinkled internally with the magnetoscopic indicator.  Current flows through the pins and jaws to magnetize the component. Alternatively Fig. 4 (not shown) the pin 11 contacts a metal jaw 13 directly and current flows in the resulting circuit path to magnetize the component. The third magnetization station M 3  includes a stationary jaw (24) and a movable jaw (25) Fig. 9 (not shown) surrounded by a respective solenoid (26a, b) whereby the lines of force of the magnetic field are perpendicular to those of the fields produced in the first and in the second magnetization stations.