baber/WOPTO huggingface dataset:
Patent GB-671318-A (GB)
Title: Improvements in or relating to rotary mixers
IPC: B01F15/00
Filed: 1949-12-29
Abstract: 671,318. Stirring device. BRAIN, L. E., and LAKESIDE IRONWORKS, Ltd. Dec. 29, 1950 [Dec. 29, 1949], No. 33252/49. Class 86 A beater arm for a rotary mixer is formed of weldable metal, e.g. mild steel, cast steel, or stainless steel and comprises a main strip, the plane of which will be transverse to the plane of rotation of the arm when in use, one or more webs formed of similar strip metal to the main strip and welded on edge to the latter so as to form one or more reinforcing webs which are perpendicular to the plane of the main strip, and stiffening webs welded in the angles between the reinforcing web strip or strips and the main strip and transverse to both or all of the said other strips, the whole thus constituting a rigid beater arm. In the beater arm shown the main strip 2 is doubly cranked to form a notch 3 for a square driving shaft and is forwardly bent at its free end 6 which is provided on its front surface with a tip piece 9. The reinforcing web 8 is welded centrally along the main strips and stiffening webs 12 are welded on each side of the web 8. The arm is fixed to the shaft by a clamping plate 4. Two reinforcing strips, one along each edge of the main strip, may be provided, the stiffening webs being rectangular and located between the reinforcing webs. In another embodiment the free end 6 is coplanar with the central portion of the arm.
Patent GB-1161382-A (GB)
Title: Pneumatic Timing Devices
IPC: F15B21/10
Filed: 1967-07-20
Abstract: 1,161,382. Pneumatic timers. BROOKHIRST IGRANIC Ltd. 20 July, 1967 [25 July, 1966], No. 33328/67. Heading F2S. A pneumatic timer, as used to provide delayed operation of a switch or the like, consists of an air chamber 22 bounded by a diaphragm 26 the inner side of which carries a plunger 25 projecting through the chamber and the outer side of which is engaged by means operable to cause or permit displacement of the diaphragm. When the diaphragm is moved from the Fig. 11 to the Fig. 3 position, air is expelled rapidly from the chamber 22 through a non-return valve constituted by the marginal portion 29a of a centrally supported flexible member 29, this portion normally covering a port (not shown) in communication with the chamber 22. Air subsequently returns to the chamber 22 at a controlled rate by way of a tapered port 39, Fig. 2 (not shown), in which a tapered rod (44) is adjustably mounted, the diaphragm returning to its initial position after a predetermined delay time. The air expelled from chamber 22 enters a lower chamber 23 which in turn communicates with an upper reservoir chamber 21. Fig. 3 shows a form in which the diaphragm 26 is normally biased by springs 58 to the "empty" condition of chamber 22 so that plunger 25 normally maintains plunger 7b in a fully projected position in which it may hold a spring biased switch (not shown) operated. When operating plunger 7a is depressed to turn levers 56, 57 and so compress springs 58, the diaphragm, urged by the switch spring acting on plunger 7b, returns at the above mentioned controlled rate to produce delayed release of the switch. Fig. 11 shows a form in which the chamber 22 is normally full of air, this air being expelled when plunger 7a is depressed so that plunger 7b is thereby ejected to actuate a switch (not shown). However, the controlled return of air to chamber 22 which immediately follows ensures that the switch is automatically deactuated after a predetermined delay.
Patent GB-1278264-A (GB)
Title: Manufacture of composite articles
Inventor: MACNEALL BERNARD
IPC: B29C44/28
Filed: 1968-07-12
Abstract: 1278264 Coating IMPERIAL CHEMICAL INDUSTRIES Ltd 16 June 1969 [12 July 1968] 33363/68 Heading B2E Composite articles are made by applying, to a moving support surface having release properties, the ingredients for forming an impervious layer of polyurethane elastomer, applying to the layer a foam forming composition, allowing the foam to set and bond to the impervious layer and continously removing the composite from the release support. The release support may be embossed in order to impart a pattern to the impervious layer. The impervious layer may be applied as an emulsion or paste in a partly or fully polymerised state. The foam is preferably polyurethane formed in situ from a reaction mixture comprising polyether or polyester polyols, polyisocyanates, blowing agents, catalysts and surface active agents. The reaction mixture may be applied by blowing, spreading or spraying while the impervious layer is still only partially polymerised. The composite may be heated to accelerate the setting of the foam. In a modification, the polyurethane elastomer is transferred while still tacky from the support to a layer of fibrous material and the foam forming composition is then applied to the exposed polyurethane surface.
Patent GB-176099-A (GB)
Title: Improvements in apparatus for distilling oils
IPC: B01D5/00
Filed: 1920-11-26
Abstract: 176,099. Robertson, T. E., (Power Specialty Co.). Nov. 26, 1920. Hydrocarbons, distilling; separate heater and evaporator apparatus.-In topping or distilling oils by passing them through heated tubes and then into a vapour separator, the tubes are arranged so that the oil passes mainly in counter current to the hot gases. A furnace chamber 2 is divided by a vertical partition 3, and banks of tubes 4, 8 are arranged at each side of the partition. The oil is fed to the lower header 5 of the bank 4, and passes upwards in parallel through the vertical rows of tubes to the upper header 7 from which it passes to the lowest row of the tubes 8, which are connected by headers so that the oil passes through all the tubes in succession. Alternatively, the tubes in each bank may be divided into two groups and the oil passed in parallel through the two groups, but in series through all the tubes of each group. Cast-iron corrugated casings may be placed on some or all of the tubes, the casings on those tubes which are exposed to the botter gases being made thinner or with shallower corrugations so that the heat absorption of these tubes is diminished. The tubes are fitted at their ends with rectangular plates, which form side-walls when the tubes are in position, and the headers are attached outside these side-walls. To prevent sagging of the tubes, they may be supported by central transverse supporting walls and by bars or rods projecting from the walls of the setting.
Patent GB-180706-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K23/40
Filed: 1920-11-26
Abstract: 180,706. Coleman, C. J. Nov. 26, 1920. Rotary machines; machines with two or more armatures; magneto-electric machines; inductor machines; motors with unwound iron armatures. -The armature coils of a dynamo-electric machine are so arranged and connected that the circuit is only completed during the periods in which the fiux through the coils is decreasing, and shunting paths of magnetic material are provided to bridge the armature coils when they are moving away from the field-magnet pole. Fig. 1 shows a magneto-electric machine having an armature coil d and a circuit making and breaking switch i in which the flux of the magnet a first passes through the bridging pieces e and the armature core b and then through the shunt h, the shunt h<1> simultaneously bridging the armature poles, the armature circuit being completed only during the latter period. Figs. 4 and 5 show a modification in which the armature flux shunt is provided by the bridge h<x> and the field-magnet shunt by one of the rotating armature poles b. A machine is also described in which armatures and fieldmagnet poles are arranged alternately and placed on both the rotating and stationary parts.
Patent GB-759455-A (GB)
Title: A spelling device for instructive purposes, particularly intended for forming words
IPC: G09B17/00
Filed: 1954-11-19
Abstract: 759,455. Educational appliances. ROMANI, R. Nov. 19, 1954 [Dec. 4, 1953], No. 33572/54. Class 146(2) A word forming device comprises a series of letter carrying discs 7, each particular letter being housed in vertical compartments 6 of a shallow case so that when a button 8, one of which is associated with each compartment, is pressed, the corresponding letter falls off a retaining step 4 of the case, down an inclined plane 9, operates a hammer 13 to sound a bell 12, and positions itself on a second incline 10 so that it may be seen through an aperture 11. Each disc 7 is formed of two circular parts 15, 16 pivoted together at O. The inner part 16 carrying the letter, is weighted at 17 to keep it always in the correct position for reading.
Patent GB-1528548-A (GB)
Title: Electrostatic precipitators for removing dust from gases
IPC: B03C3/02
Filed: 1976-08-12
Abstract: 1528548 Electrostatic precipitators VSES N I GORNO - METALLURGICHE INST TSVETNYKH METALLOV 12 Aug 1976 33580/76 Heading B2J In an electrostatic precipitator, including a number of dust collection chambers 10, 11, 12 and 13 for example, arranged in series in which each chamber has vertical earthed collector electrodes 15 arranged parallel to one another and to the direction of gas flow and negative potential discharge electrodes 31 arranged equidistant between the collector electrodes, the distane H in mm between the collector and discharge electrodes in the first chamber 10 is defined by H=aZ<SP>b</SP>, where Z is the inlet concentration of dust particles in the gas flow in gm/m<SP>3</SP> at n.t.p., a is a coefficient in the range 75-80, and b is a coefficient in the range 0.14-0.17, and the distance H" between the collector and discharge electrodes in each of the other chambers 11, 12 and 13 is defined by H"= 0.7H' to 0.8H' where H' is the distance between the collector and discharge electrodes in the preceding chamber, i.e. chamber 10, 11 and 12 respectively. In addition, the distance between the collector and discharge electrodes in the last chamber 13 is equal to the minimum possible distance determined by the dielectric strength of the gas and the value of the potential difference between the collector and discharge electrodes. The gas flow through the precipitator is made even by a pair of grids 14 disposed adjacent the inlet 5. The collector electrodes 15 may be formed in two (an upper and a lower) connected halves, Fig. 1 (not shown), each half comprising upper and lower plates (16, 17) connected by vertical rods (19). Rapping mechanisms (24) are provided for periodically cleaning the collector electrodes 15 and also for cleaning the discharge electrodes and the grids 14.
Patent GB-1307434-A (GB)
Title: Process for fermentative production of yeast cells
IPC: C12P21/00
Filed: 1970-07-10
Abstract: 1307434 Yeast KANEGAFUCHI KAGAKU KOGYO K K 10 July 1970 [3 March 1970] 33628/70 Heading C6F Yeast cells with a high protein content are obtained by cultivating Candida novellus ATCC 20275 or a hydrocarbon-assimilating mutant or variant thereof under aerobic conditions in an aqueous nutrient medium containing as a main carbon source C 9 -C 30  n-paraffins, kerosene, gas oil or crude paraffins, separating from the culture medium the yeast cells produced and washing them with water. The aqueous nutrient medium should include biotin, desthiobiotin or such sources of biotin as molasses, yeast extract and corn steep liquor. Anti-foaming agents such as soybean oil, a silicon antifoam resin or a fatty acid derivative may be included.
Patent GB-926653-A (GB)
Title: Improvements in or relating to carriage feed mechanisms for machine tools
IPC: B23Q5/34
Filed: 1960-09-30
Abstract: 926,653. Lathe and the like feed mechanism. MASCHINENFABBIK FRORIEP G.m.b.H. Sept. 30, 1960 [Oct. 1, 1959], No. 33648/60. Class 83 (3). Feed mechanism for lathe and like carriages is arranged so that practically all the shafts lie in one plane so that a flat construction for fitting into the saddle of a heavy duty lathe is obtained. A motor 1 drives through gears 2, 3, the input shaft of a feed regulating mechanism 4 having two output shafts one for high-speed movements and the other for working feeds operated by electromagnetic clutches 7, 8, respectively. Longitudinal movement of the saddle is effected by a pinion 27 on the saddle and a fixed rack 28 on the lathe bed. The tool carriage traverse is effected by a screw P and this mechanism is employed as detailed below for taper turning. Screw cutting is effected either through the rack and pinion drive or through a leadscrew (not shown) in the tool carriage support driven by a bevel 39. Longitudinal saddle movement. (a) For quick approach, through feed reduction mechanism gears 5, 6, electromagnetic clutch 7, gears 10- 12, clutch 17 to worm 25. (b) The latter movement may be reversed by driving through gears 9, 13, 14, 15. (c) For working feed the other output shaft of the feed reduction mechanism is used and the drive taken through clutch 8, gears 9-12 or reversed through gears 9, 13, 14, 15. Transverse feed of tool-slide. Clutch 16 is engaged and the drive taken through gears 18- 20, double clutch part 21 and gears 22-24, clutch 24a is engaged to drive a screw-threaded spindle P which feeds the slide. Taper turning. Double clutch part 30 is engaged with driven part 29 to drive gears 31, 32, a pick-off gear train 33, 33a, 34 arranged with a quadrant W, and clutch part 35. Double clutch part 21 is moved to the right to disengage gear 20 and engage clutch part 35 which then drives through gears 22, 23, 24 and clutch 24a to move the tool slide. Screw-cutting. Motor 1 is brought into synchronous running with the work spindle by means not shown and screw-cutting effected by two methods. (a) Double-clutch part 30 is moved to engage clutch-part 37 which drives gears 31, 32 and pick-off train to clutch part 36. Double clutch part 21 is moved to engage clutch part 36 and wheel 29 which then drives rack and pinion gearing. (b) Alternatively from the pick-off drive point in (a) the clutch part 21 may be moved to engage clutch part 35 and drive effected through gears 21-23 to shaft 5 which drives through bevels 38, 39 a lead screw for the tool slide.
Patent GB-1247109-A (GB)
Title: Electromagnetic starting switch
IPC: H01H50/16
Filed: 1969-07-03
Abstract: 1,247,109. Electromagnetic relays. ELLENBERGER & POENSGEN G.m.b.H. 3 July, 1969 [16 Aug., 1968], No. 33687/69. Heading H1N. A balanced armature relay has a coil 4 on a former 5 around a core 6 fitted in the lower part 1 of a relay housing and a U-shaped armature 10 mounted by its pivot pin 9 in the upper part 2 of the relay housing. On the sides of the armature, contact springs 15 are mounted on projections 14 and one of the projections 14 provides, a seating for one end of an armature biasing spring 19 which has its other end on an adjustable screw 21 in the housing part 2. Contacts 16 on the ends of contact springs 15 co-operate with fixed contacts 17 on terminal members 18 mounted in the housing part 1. The terminal member 18 and a coil terminal 23 project through the housing part 2 to form plug contacts. When used as a motor starting relay one end of the coil 4 is connected to a contact terminal 18.
Patent GB-898095-A (GB)
Title: Method for free forming of stretched sheet material
Inventor: CLAPP ROBERT JESSUP
IPC: B29C51/42
Filed: 1959-10-05
Abstract: 898,095. Moulding stretched thermoplastic Sheets. SWEDLOW Inc. Oct. 5, 1959, No. 33716/59. Class 87(2). A sheet 100 of thermoplastic material, e.g. polystyrene or an acrylic resin, is shaped to form e.g. an aircraft canopy by mechanically shaping the sheet over a die whilst cold or as shown in an oven. The die and the sheet may be preheated. The sheet is then held by clamps 50 and heated to relieve stresses in the material. The sheet is then removed from the oven, the clamps released, a clamping ring 51 and retaining ring 60 placed on the sheet, and the clamps 50 reset. The sheet is returned to the oven and heated to a temperature higher than' that used previously for the manual shaping operation. A fabric blanket 65 having a central opening is placed over the sheet to concentrate the heat in the centre of the sheet. Low pressure air is supplied through a pipe 41 and a fabric diffuser 43 to blow the sheet out into the desired form, which may be judged by a template 120. In a modification, suction may be applied to one side of the sheet instead of applying air pressure. A coolant may be supplied to a jacket 32 and high pressure air is supplied to an inflatable seal 55. A modified form of seal between the sheet and the die is described with reference to Fig. 12 (not shown). The Specification includes examples giving specific temperatures and pressures. Specification 808,182 is referred to.
Patent GB-392251-A (GB)
Title: Improvements in or relating to covers for garments and other articles
IPC: A47G25/54
Filed: 1931-12-04
Abstract: 392,251. Transparent covers. TRANSPARENT COVER CO., 215, N. Main Street, Providence, Rhode Island, U.S.A.-(Assignees of Freedman, S. H. ; 2, Pama a Gardens, Brighton, Massachusetts, U.S.A.) Dec. 4, 1931, No. 33718. Convention date, June 10. [Class 52 (i).] A protective cover for garments and other articles comprises separate front and back portions of transparent sheet material which have side and top edges of substantially the same contour, and which are united at their abutting edges by adhesive strips, the cover so formed being 6pen at the bottom. The covers may be used for protecting the upper part of coats, dresses, suits, and other garments as they stand on display racks. The edges around the bottom opening of the cover may be reinforced with adhesive strip. The adhesive strip may be of cloth or woven fabric cut on a bias and it may be coated with adhesive along its edges only, the middle portion being left uncoated. The transparent material may be of regenerated cellulose sheet such as " Cellophane," and the adhesive strip may be provided with a pitch and rubber adhesive. As shown in the drawings, a garment 3 is composed of similar back and front elements 4, 5, the front element being cut to provide a hole for the insertion of the hook of the garment hanger. The upper edges of the elements 4, 5 are cut so that the cover will fit over the top and shoulders of the garment, and the lower edges are curved in a similar manner in order to economize in material when cutting out a number of the elements. An adhesive cloth strip 12 is bent over the edge of the transparent sheet material at the opening for the hanger hook and is crimped. An adhesive strip 13 is applied around the sides and top to secure the elements 4, 5 together, and is pressed to the sheet material by crimping rollers. The material of the adhesive strip is cut with the weave running diagonally in order that it may be stretched where necessary when applied to the elements 4, 5. An adhesive strip 15 is bent over the bottom edge of the cover as reinforcement. To prevent tearing at the opening for the hanger hook, a staple 20 is placed parallel with the strip 13 where the strip 12 comes beneath it. Alternatively, as shown in Fig. 3, an adhesive strip 18 is placed round the opening and over this a grommet 19 is riveted through the material. The covers may also be of bag shape.
Patent GB-725929-A (GB)
Title: Mechanism for stopping an electrically-driven machine tool on failure of lubricant pressure
Inventor: SMITH EDWIN ROY
IPC: G08B21/20
Filed: 1953-12-04
Abstract: 725,929. Control of motors. SENECA FALLS MACHINE CO. Dec. 4, 1953, No. 33822/53. Class 38 (3). A motor M driving a machine tool is stopped at the end of an operation of the machine following a failure of the lubricating-pressure. For this purpose, parallel-connected switches S5, S6, are placed in a holding-circut of an operating coil 20 for a main conductor S2, it being necessary for both of the switches to be opened before the circuit of the driving motor is interrupted. The switch SS is opened by means of a bellows when the pressure of the lubricant drops below a'normal value the switch S6 being dog-operated upon the completion of the machine operation in progress
Patent GB-907179-A (GB)
Title: An improved process for making silicone rubber fillers
IPC: C01B33/113
Filed: 1960-10-03
Abstract: Modified silica organogels, or silica powders with specific surface areas of 100 to 650 square metres per gram as measured by the B.E.T. method, which are particularly useful as silicone rubber fillers, are produced by a two stage process comprising (1) heating an acid silica hydrosol having from 0,02 to 0,5 g. of SiO2 per ml. of sol and having sufficient concentration of a strong mineral acid, as defined, e.g. HCl, HNO3, H2SO4, HBr, HI, and phosphoric acids, such that the pH of the sol is not greater than one, at a temperature of 50 DEG -250 DEG C., and (2) thereafter mixing, in the presence of a strong acid as catalyst (A), the hydrogel so produced with an organosilicon compound (B) selected from the group consisting of silanes of the molecular formula [RnSiX4-n and siloxanes of the empirical formula] <FORM:0907179/III/1> in which each R is an aliphatic hydrocarbon radical containing less than 6 carbon atoms, a phenyl radical or a radical of the general formula R1CH2CH2-where R1 is a perfluoralkyl radical containing from 1 to 3 carbon atoms, each X is a chlorine atom or alkoxy radical containing less than 6 carbon atoms, and n is 2 or 3, said organo-silicon compound being present in amount of at least 0,06 organosilyl unit per SiO2 unit of the silica gel, and with (c) a water-immiscible organic liquid, which may be the organosilicon compound as specified under (B).  Specified organosilicon compounds (B) include hexamethyl disiloxane, and trimethylchlorosilane, others being listed in the Specification.  The organic solvent (C), which may be added before, with, or after the organo-silicon compound, may be toluene, xylene, heptane or other aliphatic hydrocarbon solvents, cyclohexane, ethers, and halohydrocarbons, e.g. CH2Cl2, CHCl3, or if the organo-silicon compound is a liquid siloxane this may serve as the organic liquid without separate addition of another water-immiscible organic liquid.  Watermiscible organic liquids, e.g. ethanol, tetrahydrafuran, may also be present.  The strong acid catalyst (A) in the second stage may be HCl, H2SO4, or benzene sulphonic acid, and if the organo-silicon compound is a chlorosilane HCl may be generated in situ by hydrolysis thereof. The product may be used as an organogel, or the organic solvent may be removed to produce a powder.  Specifications 682,540 and 783,868 are referred to.
Patent GB-1197072-A (GB)
Title: Electric Cell
Inventor: BROWN WILLIAM EMIL
IPC: H01M6/20
Filed: 1967-07-24
Abstract: 1,197,072. Secondary cells. DOW CHEMICAL CO. 24 July, 1967 [25 July, 1966]. No. 33884/67. Heading H1B. Secondary cells comprise an oxidizable liquid metal anode, a reducible non-aqueous liquid or paste cathode containing cations of the metal electrode and a separator separating the electrodes which is a capillary tube which is selectively permeable to the cations of the anode metal. The anode may be a metal of one or more alkali metals or their alloys or amalgams. The cathode may contain S, Se, Te, tetracyanoethylene and/or parathiocyanogen and anions, equivalent to the cations, derived therefrom or from ferricyanic acid. The separator may be formed of a ceramic and/or a glass. In a typical example a capillary of sodium silicate glass sealed at one end is filled with Na and partially immersed in a molten mixture of Na 2 S and S corresponding to the empirical formula Na 2 S 44 . Contact with the electrodes is made by lead wires and the cell was made liquid and vapour tight.