baber/WOPTO huggingface dataset:
Patent GB-325824-A (GB)
Title: Improvements in or relating to apparatus for use in the irradiation of liquids and organic substances
IPC: C02F1/32
Filed: 1928-11-23
Abstract: 325,824. From, V. C., Rowley, C. D., and Larsky, A. W. Nov. 23, 1928. Radiations, treating substances with.-Liquids and organic substances are exposed to the combined action of rays from two different lamps or sets of lamps providing respectively rays shorter and rays longer than those in the average visible part of the spectrum. The rays are caused to impinge on the substance from opposite directions and the action takes place in the presence of ozone. A temperature of between 0 and 15‹ C. is preferably maintained. The substances after irradiation may be exposed to visible light in the presence of ozone. In the apparatus shown in Fig. 1, lamps C, E, respectively of the two different types, are arranged above and below a chamber B fitted with shelves G, screens D, F being provided to cut off visible light rays. A cooling apparatus J, J, is provided together with a motor H which may drive a fan or a generator of high tension current. In the modification shown in Fig. 3 lamps C, E of the different types are arranged in opposed pairs in the upper compartment B of a cabinet which has also an intermediate cooled storage compartment B<2> and a lower compartment B' for a motor. The ozone employed may be that produced by the operation of the lamps or may be supplied additionally.
Patent GB-363096-A (GB)
Title: Improvements in electric stop motions for drawing frames
IPC: D01H13/16
Filed: 1930-11-18
Abstract: 363,096. Electric stop motions for drawing frames. SCOTT, W. J., 78, Collins Street, Woonsocket, Rhode Island, U.S.A. Nov. 18, 1930, No. 34672. [Class 120 (ii).] In a drawing frame having the upper draft rolls mounted in movable bearing blocks, a contact arm is arranged to extend into a position in which it may be engaged by one of the bearing blocks, the block and the contact arm being included in the circuit of an electric stop motion. The lower draft roll is mounted in fixed bearings in a frame 27 and the upper roll is positioned within a vertically adjustable bearing block 28 in the frame 27. A member 28<1>, with an arm 29 hingedly secured thereto, is mounted on the frame 27 by means of a screw passing through a vertical slot in the member 281. A stop lug 33 on the arm 29 is pulled into engagement with a protruding section 32 on the member 28<1> by a spring 40. An electrical contact member 35 is secured in an upward extension 34 of the arm 29 and a pin 37 is adjustably secured in a slot 36 in the member 35 by means of a nut 38 and lock block 39. The pin 37 is arranged to extend into a position just above the bearing block 28 so that on a sliver lapping around the upper draft roll the block is moved into engagement with the pin to complete an electric circuit, so that the electrically operated catch member 41 releases the latch 42 and allows the shift lever 43 to move under the action of the spring 44 to move a belt from a fast to a loose pulley. To restart the machine the shift lever is moved to the right and the latch and catch members re-engaged. The arm 29 may be turned through two complete rightangles to remove it from the operative position so that the bearing block and draft rolls may be removed from the frame. In a modified form the spring 40 may be replaced by a leaf spring on the arm 29.
Patent GB-1521747-A (GB)
Title: Prostaglandin analogues
IPC: C07F9/40
Filed: 1975-08-20
Abstract: 1521747 Cyclodextrin clathrates of prostaglandin derivatives ONO PHARMACEUTICAL CO Ltd 10 Aug 1976 [20 Aug 1975 22 Oct 1975] 34688/75 and 43464/75 Heading C3U [Also in Division C2] The invention comprises cyclodextrin clathrates of 2,3-didehydroprostaglandins of the formula wherein B is O or S; R<1> and R<2> each are H, halogen, CF3, C1-4 alkyl or C1-4 alkoxy; R is COOR<3> or CH2OR<4>, where R<3> is H or C1-12 alkyl and R<4> is H or C2-5 alkanoyl and A is a grouping of the formula and their preparation by known methods.
Patent GB-962812-A (GB)
Title: Process for the production of finely dispersed calcium carbonate
IPC: C08K3/34
Filed: 1960-10-10
Abstract: Finely dispersed precipitated calcium carbonate having a disturbed calcite lattice, a loose secondary particle structure, and containing silicic acid in an amount corresponding to an SiO2 content of 0.1-20% by weight calculated on CaCO3, is prepared by reacting an aqueous calcium hydroxide suspension of not more than 1.0 molar concentration, at a starting temperature of 10-30 DEG  C., with CO2 in the presence of an added aqueous alkali metal silicate solution or of an added freshly prepared silicic acid solution, the latter containing SiO2 ions in a low polymerized state and having an SiO2 content of not more than 10% by weight, and interrupting the supply of CO2 to the suspension upon reaching pH value of from 8.5 to 11 therein.  Several sources of freshly prepared silicic acid are mentioned.  A water-soluble salt of nitrilotriacetic acid may also be present during the process, and remains in the final product. Specification 903,345 is referred to.
Patent GB-920669-A (GB)
Title: Improvements relating to pie making machinery
Inventor: BURGESS LESLIE NORMAN
IPC: A21B5/02
Filed: 1960-10-11
Abstract: 920,669. Pie-making machines. BURGESS ENGINEERING (STOKE-ON-TRENT) Ltd. Oct. 11, 1961 [Oct. 11, 1960], No. 34737/60. Addition to 906,940. Class 87(2). In a pie-making machine of the kind described in the parent Specification having a bottom strip extruder 10, a depositer 11, a top strip extruder 12, a crimper 13, and trimmer 14, the excess dough removed by the trimmer 14 falls onto a transverse conveyer 15 which feeds it to a conveyer 16 discharging to a further transverse conveyer 18 which returns the excess dough to the hopper 101 of the extruder 10. Alternatively the conveyers may be arranged to return the dough to the extruder 12.
Patent GB-1347830-A (GB)
Title: Glass
IPC: C03C3/07
Filed: 1972-07-25
Abstract: 1347830 Optical flint glass CARL-ZEISSSTIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 25 July 1972 [28 July 1971] 34752/72 Heading C1M Optical flint glass consists of (in weight per cent): the maximum content of TiO 2 +PbO being 54 and TiO 2  + PbO + (Nb 2 O 5  and/or Ta 2 O 5 ) being 33-72. The glass may have a refractive index n d  of 1À65-1À87 and an optical dispersion v d  of 32-21.
Patent GB-1440977-A (GB)
Title: Random flow counters
IPC: G06M1/10
Filed: 1973-07-23
Abstract: 1440977 Counting objects F HOFFMANNLA ROCHE & CO AG 23 July 1973 34991/73 Heading G4D In apparatus for counting discrete objects such as capsules 10, in which the capsules travel along a channel 11 past a detector 21, the channel has an opening 14 upstream of the detector to allow ingress of atmospheric air and means downstream of the detector to direct a jet of air perpendicularly across the channel. The jet causes turbulence which draws in air from the opening 14 thus accelerating each individual capsule to separate it from the next and allow high speed counting. A plurality of the capsules fall randomly from a conveyor or the like and are funnelled 12 into a plurality of the channels 11. A lamp 18 and a phototransistor 20 sense each channel. Each transistor 20 via a buffer amplifier (Fig. 2, not shown) and a Schmitt trigger, sets a bistable memory each time a capsule is detected. A multiplexer (30) scans all the memories at high frequency, incrementing a counter (35) and resetting each time a set memory is detected.
Patent GB-749139-A (GB)
Title: Improvements relating to hobbing machines
IPC: B23F5/22
Filed: 1953-12-16
Abstract: 749,139. Gear-hobbing. STAEHELY, K., and STAEHELY, H., [trading as MASCHINENFABRIK R. STAEHELY], Dec. 16, 1953 [Dec. 27, 1952No. 35071/53. Class 83 (3). A hobbing machine comprises mechanism for displacing the hob 6 axially, and an adjustable counting-mechanism operated from the hob-spindle 7 to actuate the displacing mechanism. The hob 6 is rotated by a motor 10 through a worm-wheel 9 splined on the spindle 7. The worm-wheel is fast with a gear 14 meshing with a gear 15 which can be connected by a magnetic clutch 17 to an eccentric disc 21 actuating a pawl 29 pivoted to an arm 28. The pawl engages a ratchet-wheel 27 connected at 26 to a screwed sleeve 22 axially-fast on the spindle 7. The sleeve 22 is locked by a nut 23. In operation, at the end of each return stroke of the hob slide 3, a dog 39 actuates a switch 37 to operate a counting-device 36. After a number of strokes, determined by the setting of a knob 40, the magnetic clutch 17 is energized to advance the ratchet 27. The advance is determined by the setting of a masking-plate 32 by a knob 33. When the clutch is energized, so also is a motor 46 which withdraws a wedge 44. At the end of the ratchet movement, the arm 28 strikes a lever 34 to reverse the motor 46 and lock the hob carrier 5. At the limit of movement of the hob a rod 48, screwed into the carrier 5 and pro-set by a knob 49<SP>1</SP> and pointer 52, strikes a lever 51 and releases the nut 23. A spring 42 then returns the hobcarrier 5 to its initial position against an adjustable stop 43.
Patent GB-1087635-A (GB)
Title: Battery separator plates and novel compositions for use in same
IPC: H01M50/409
Filed: 1964-08-27
Abstract: The invention comprises a surface-active agent which is the reaction product of a polyoxyalkylene compound containing at least one primary terminal hydroxyl group and no secondary terminal hydroxyl group, and a cyclic organic carboxylic acid anhydride.  The polyoxyalkylene compound may contain 1-10 primary terminal hydroxyl groups and is derived from the reaction product of ethylene oxide and another 1,2-cyclic oxide, an aliphatic amine containing 1-12 carbon atoms, an aromatic amine containing 1 or 2 benzene rings, a phenol or a phenol-formaldehyde reaction product of less than 1 mol. of formaldehyde per mol of phenol.  The surface-active agent may contain 5-75 weight per cent of ethylene oxide.  The cyclic anhydride may be maleic, citraconic, glutaric, phthalic, succinic, dodecenyl succinic or citric anhydride.  The surface-active agents may be mixed with phenol-aldehyde resins, particularly those containing 0.5-3 mols of formaldehyde per mol of phenol, preferred proportions being 0.1-5 parts by weight of surface-active agent per 100 parts of phenol-formaldehyde resin.ALSO:A cellulosic fibrous sheet in the form of a battery separator plate is coated with a surface active agent which is the reaction product of a polyoxyalkylene compound containing at least one primary terminal hydroxyl group and no secondary terminal hydroxyl group, and a cyclic organic carboxylic acid anhydride.  The polyoxyalkylene compound is derived from the reaction product of ethylene oxide and another 1.2 cyclic oxide, a polyol, an amine, a phenol or a phenol-formaldehyde reaction product. The cyclic anhydride may be maleic, citraconic, glutaric, phthalic, malic, succinic, dodecenyl succinic or citric anhydride.  The surface active agent may be combined with a polyester or phenol-aldehyde resin before coating.
Patent GB-394008-A (GB)
Title: Improvements in or relating to doors for cooking ovens
IPC: F24C15/02
Filed: 1931-12-19
Abstract: 394,008. Cooking-stoves. WORTLEY, G. W., Gothic Works, Falkirk, and MAIN, Ltd., R. & A., 48, Grosvenor Gardens, London. Dec. 19, 1931, No. 35184. [Class 126.] A sill 1, Figs. 1 and 2, or a gutter 8, Fig. 3, extends across the width, and near the lower edge of, a wall or the inner face of the door of an oven, and is formed integrally with the wall or door-face. The sill projects into the oven space and causes condensed moisture to drip clear of the framework of the oven or door, whilst in the case of the gutter 8 the moisture collected in it is subsequently re-evaporated. The inner face or lining of the wall or door may be provided with inclined ledges or channels 5 at each side, which serve both to direct the moisture to the ledge and to stiffen the lining which consists, in the form shown, of a sheet-metal plate in which the bottom ledge (or gutter) and the inclined ledges are formed by pressing.
Patent GB-155275-A (GB)
Title: Apparatus for extracting and kneading peat
IPC: E21C49/00
Filed: 1920-12-14
Abstract: 155,275. Bobst et fils Soc. Anon., J. Feb. 14, 1919, [Convention date]. Peat, preparing.-An apparatus for extracting and kneading peat comprises a carriage 1 travelling on rails and carrying a vertical turf-cutting spade 2 and extraction basket, a screw conveyer 4 for conveying the extracted peat to a reservoir 10, a screw conveyer 8 for conveying the peat from the reservoir to a kneader 7, and a conveying-means 9 with small movable boards or plates for discharging the kneaded lumps of peat. When the peat-extracting apparatus has delivered the contents of the basket into the conveyer 4, it is moved forwards through a distance equal to the width of the basket. An automatically-acting apparatus causes the advance of the kneader and the charging-apparatus 8, 10 mounted on connected carriages. This automatically - acting ,apparatus includes a removable stop 34, Fig. 8, which bears, under the action of a counterweight 31 and rocking-lever 37, against one side of the conveyer 4; the stop is placed in a seating 32 or a seating 33, in a sliding-rod 30 connected to the lever 37, the seating being selected according to the direction in which the carriage 1 is to travel. 'The movement of the kneader carriage is controlled by means of a coupling-mechanism actuated indirectly by the action of the counterweight 31 on one end of the rocking - lever 37. The reservoir 10 is fitted with beaters 13, 15 which cut up the peat and force it towards the inlet to the conveyer 8. After kneading, the peat passes out through a screw conveyer and the resulting lumps are deposited on the movable small boards or plates.
Patent GB-779575-A (GB)
Title: Piston for internal combustion engines, particularly two-stroke engines
IPC: F02B3/06
Filed: 1955-12-08
Abstract: 779,575. Pistons. AKT.-GES. FUR UNTERNEHMUNGER DER EISEN-UND STAHLINDUSTRIE. Dec. 8, 1955 [Dec. 9, 1954], No. 35267/55. Class 122 (1). In an internal-combustion engine piston, particularly for two-stroke engines, having a piston sleeve 2 freely rotatable on the piston body 1, the inner surface of the sleeve is cooled by oil circulated towards the piston head 35 in series through connected, and preferably annular channels 25, 27, 29 in the vicinity of the piston rings 30. The channels 25, 27, 29 are formed between the sleeve and a jacket 13 secured to the piston body by screws 15. Cooling oil is circulated through pipes 19, 19<SP>1</SP> journalled in brackets 20, 20<SP>1</SP> secured to the body 1 and having flanges 22, 22<SP>1</SP> engaging a groove 23 in the sleeve 1 to hold the latter axially fixed but freely rotatable on the body. The inner surface of the sleeve is formed near the piston rings with concentric grooves 28. Oil supplied by pipe 19 flows through duct 24 in the body and then through channels 25, 27 and 29 in series, channels 25 and 27 and 27 and 29 being connected by axial passages (not shown). A rib 41 on the jacket 13 causes the oil to flow circumferentially in channel 29 from whence it is led into an annular space 34 below the piston head 35 and returned via openings 37 and duct 40 to the pipe 191.
Patent GB-1514810-A (GB)
Title: Crosslinked polymers
IPC: G02B1/04
Filed: 1976-08-19
Abstract: 1514810 Crosslinked hydrophilic polymers S G PATEL [Trading as EUROGEL] 19 Aug 1976 [27 Aug 1975] 35331/75 Heading C3P A crosslinked hydrophilic polymer having a water uptake of 30-82% by weight is a polymer of at least one hydrophilic monomer or a co- (polymer) of a hydrophilic monomer andahydrophobic comonomer which is crosslinked with a crosslinking agent selected from 2,2<1>-(m-phenylenedioxy) diethyl dimethacrylate; 2,2<1>-p-phenylenedioxy) diethyl dimethacrylate, the crosslinking agent constituting 0À1-1À5 mole % of the units. The specific examples describe the production of the following polymers with the above specified crosslinking agents: 2-hydroxyethyl methacrylate homopolymer, and copolymers of N-vinyl pyrrolidone with methyl methacrylate, 2-hydroxyethyl methacrylate, glycidyl methacrylate and 2-hydroxy 3-phenoxy propyl methacrylate.
Patent GB-505789-A (GB)
Title: Improvements in or relating to control valves of apparatus for the production of gases by cyclic operation
IPC: C10J3/72
Filed: 1937-12-21
Abstract: 505,789. Valves. GRIGGS, A. R. Dec. 21, 1937, No. 35344. [Class 135] [Also in Group XII] In apparatus for the production of gases by cyclic operation such as water gas, the outlet side of a valve controlling the flow of air or other combustion supporting gas, when closed, is subjected to a cushion of steam pressure to prevent leakage therefrom or combustible gas leaking therethrough in the reverse direction. A water gas generator a is connected by a passage c with a compartment g of a valve chest e, also provided with a compartment communicating with a gas offtake d and a compartment f communicating with a blast main b and a steam pipe l. Valves h and l<1> control the opening and closing of the blast main and steam pipe respectively, and a single disc valve k suffices to open or close the openings i and between the compartments f and g and between g and d respectively. The spindle of valve k may surround the spindle of valve h. During an up-run with valve l<1> open, valve h closed and the opening j closed by valve k, steam is cushioned on to the closed valve h by partially closing, preferably automatically, a throttle valve m in the connecting passage c. During a down- or back-run with the valves l<1> and h unaltered and the opening i now closed by the valve k leaving the opening j open, steam is again cushioned on to the closed valve h by means of a loaded valve or other check means n<1> in a conduit n leading to the generator top or superheater top. In this case, the water gas flows through the passages c and d to the carburetter top or superheater outlet according to whether a down- or back-run is being made. Condensate may collect in a sealed drain o. The valves m and n<1> are sufficiently throttled or loaded to ensure a steam pressure in the compartment f above the pressure in the air main in each case. In a modification of the invention, the compartment f, Fig. 5, is arranged between a pair of gate valves q, q<1> in an extension of the blast pipe b, the steam pipe l and the conduit n communicating therewith through a 3-way valve l<1>. During a down- or back-run, the valve l<1> is set so that part only, of the steam cushions the valve q<1> and the remainder is supplied to the set through the conduit n<1>. The compartments of the valve chest and its valves may be arranged side by side. Secondary and tertiary air supplies may be byepassed from the valve chest through conduits having valves' which may be similarly cushioned during the gas-making period.
Patent GB-1313543-A (GB)
Title: Photographic exposure control systems
IPC: G03B7/16
Filed: 1970-07-22
Abstract: 1313543 Photographic exposure control system POLAROID CORP 22 July 1970 [24 July 1969] 35603/70 Heading G2A A photographic exposure control system has a flash bulb 330 fired at a time related to the shutter opening and closing characteristics so that the quantity of light entering the shutter during the shutter opening period is equal to that entering during the shutter closing period. The areas 314, 316 under the flash illumination curve 312, Fig. 5 are thus equal.
Patent GB-1136272-A (GB)
Title: Angle sensing system
IPC: G01S17/06
Filed: 1966-08-09
Abstract: 1,136,272. Photo-electric position finding. UNITED AIRCRAFT CORP. 9 Aug., 1966 [13 Aug., 1965], No. 35616/66. Heading H4D. In a photo-electric direction finder a light beam is caused to scan spirally a field of view. The spiral scan is outwardly from the centre and back thereto, the time interval between the two ensuing echo pulses being a measure of the angular position of the target (e.g. a satellite) from the direction of the unscanned beam, Figs. 3, 4 (neither shown). In the embodiment a laser is pulsed and range measurement may be added. The laser Q-switching may be effected using an ultrasonic modulator 18 as described in Specification 1,068,515 (see Division . H1). The spiral scan is produced by an ultrasonic modulator as described in Specification 1,127,238, or 1,136,271. The target may be automatically tracked. The angular measurement is obtained from an oscilloscope 32 or a computer 34. Telescope 16 may be eliminated by beam splitting optics in telescope 14; or the latter may be omitted. A continuous-wave laser may be utilized, the ambiguity in consecutively received pulses being resolved by a reference marker generated at the beginning of each spiral scan.
Patent GB-1035787-A (GB)
Title: Improvements in or relating to electric circuit arrangements for operating electric discharge lamps
Inventor: CATES JULIUS
IPC: H05B41/22
Filed: 1963-09-10
Abstract: 1,035,787. Supply systems for high pressure discharge tubes. GENERAL ELECTRIC CO. Ltd. Sept. 10, 1964 [Sept. 10, 1963], No. 35677/63. Heading H2H. In a circuit for a high-pressure mercury vapour/sodium iodide lamp having a series ballast B, to improve the stability on starting, the ratio of the inductive impedance 9 to that of the whole ballast is made at least 1À4. The ballast may be predominantly capacitive which gives better starting or predominantly inductive giving better running conditions. A starting electrode, close to one of the main electrodes may be connected through a high-value resistor either to the other electrode or to a step-up transformer. The inductor 9 may form part of a stray field auto transformer.
Patent GB-1521189-A (GB)
Title: Stacks of piezo-electric ceramic laminations
IPC: H03H9/17
Filed: 1976-08-27
Abstract: 1521189 Laminated piezo-electric elements SIEMENS AG 27 Aug 1976 [22 Sept 1975] 35817/76 Heading H1E A stack of piezo-electric ceramic laminations 1, 2, ... 5 have electrically conductive layers 7, ... 10 therebetween which overlap in a central region and extend alternately to opposite edges of the stack, the piezo-electric laminations being polarized transversely through - out, and alternately in opposite directions in the central region. In manufacture, the laminate is first fromed with the internal conductive layers and further such layers on the whole of the end faces (60, 110, Fig. 2, not shown) and an electric field is applied between the end layers to polarize the whole stack transversely in one direction; the conductive layers are then connected in two interdigitated groups by side conductive layers 12, 13 and an electric field is applied between the two groups to reverse the direction of polarization of every second lamination in the overlap region, leaving the edge regions unaffected.