baber/WOPTO huggingface dataset:
Patent GB-1294151-A (GB)
Title: Sound absorbing and attenuating panel
Inventor: ECKEL OLIVER CLARENCE
IPC: E04C2/284
Filed: 1970-10-02
Abstract: 1294151 Laminates O C ECKEL 2 Oct 1970 [11 March 1970] 46895/70 Heading B5N [Also in Division E1] A sound absorbing or attenuating panel comprises a supporting perimeter frame 10 formed by upper 12, lower 18 and side 24 retainers having channels 14, 20 and 26 therein and retainer covers 16, 22 and 27 enclosing or embodying the retainers, the panel further comprising a tortuous panel divider 30, layers 29a, 29b, 29c, 29d of acoustic insulating material on both sides of the panel divider and front and rear panel facings 17 and 17a on the sides of said layers remote from the panel divider, the perimeter of the panel divider being retained in said channels and the panel divider having main walls 30b with one main wall or one part thereof being closer to one of said panel facings than another main wall or another part of said one main wall, and the thickness of said layer or layers between the front panel facing and said one main wall or said one part thereof, being different from the thickness of the layer or layers between the rear panel facing and said one main wall or said one part thereof. In the embodiment shown, the retainers are of wood, the layers of acoustic insulating material of fibreglass and the facings of steel or aluminium. In an alternative embodiment, the retainers may be made partly of wood and partly of metal and the covers of plastics material. In a further embodiment, the main walls of the panel divider are parallel and at an angle to the facings.
Patent GB-1511068-A (GB)
Title: Wall ties
IPC: E04B1/41
Filed: 1976-11-11
Abstract: 1511068 Wall ties GEORGE CLARK (SHEFFIELD) Ltd 11 Nov 1976 46934/76 Heading E1B A wall tie for securing brickwork 7 to a timber frame 8 comprises a length of metal wire 1 bent into a loop 3 at one end and formed into a stalk 4 and eye 5 in a plane perpendicular to the loop. A kink 6 serves as a "drip-promoter".
Patent GB-1086060-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: POULTER DENNIS ROSS
IPC: G21C3/348
Filed: 1963-12-02
Abstract: 1,086,060. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 24, 1964 [Dec. 2, 1963], No. 47442/63. Heading G6C. A nuclear reactor in which a bulk moderator is penetrated by a number of pressure tubes housing fuel rod assemblies in contact with operating coolant flowing within the tube, characterized in that conduits connect a source of emergency coolant with sprays mounted within the fuel rod assemblies; a fluid flow control valve is actuated in response to an emergency signal (arising, e.g. from major break in primary coolant circuit) so as to spray the fuel rod assemblies to prevent damage by accumulations of fission product decay heat. A centrally disposed closed end tube is disposed in each fuel rod assembly and includes radially extending spray orifices distributed about its length; its upper open end is attached by conduit 8 to a supply line 10 passing, via the flow control valve 28, to a nitrogen pressurized water tank 9. The time elapsed during emptying of tank 9 following an emergency, is sufficient to ensure that the reactor containment vessel will be at atmospheric pressure when it is emptied. Further emergency coolant is then available using gravity flow from a secondary tank 25, after shutting Valve 28 and opening valve 27. Orifice plates 33 ensure equal emergency coolant supply to each spray tube. Some of the water supplied to the spray tubes may be directed adjacent to each fuel rod assembly and sprayed radially against deflector plates at the assembly top ends, so that the coolant is directed downwards on to the outermost concentric circle of fuel rods in each assembly.
Patent GB-1196406-A (GB)
Title: Improvements in or relating to the Cultivation of Micro-Organisms
Inventor: STEWART DANIEL
IPC: C12N1/02
Filed: 1966-10-24
Abstract: 1,196,406. Recovering mineral oils from culture media. BRITISH PETROLEUM CO. Ltd. 4 Oct., 1967 [24 Oct., 1966], No. 47516/66. Heading CSE. [Also in Division C6] A micro-organism product contaminated with hydrocarbon is mixed with a normally liquid petroleum hydrocarbon boiling within the gasoline-kerosine boiling range and the mixture is filtered. Examples 1 and 2 are directed to the cultivation of Candida lipolytica on a heavy gas oil in a cylindrical fermenter surrounded by a heat exchange annulus. Broth was continuously withdrawn from the fermenter and decanted to recover a yeast cream containing 5% yeast (dry weight), 50% residual gas oil and 45% aqueous medium. A volume of the yeast cream was diluted with 0À5 volume of a naphtha of S.G. 0À77 and boiling range 140- 170‹ C., and after mixing thoroughly the blend was filtered at ambient temperature and at a pressure of 10-15 in. Hg. on a rotary vacuum filter; a filtration rate of 250 grams/sq. ft./hour was obtained. According to Example 2, the blend was heated at 80‹ C. for 30 minutes, then cooled to 55‹ C. and filtered at 50-55‹ C.; a filtration rate of 350 grams/sq./ft./hour was obtained. The filtration rate at ambient temperature without dilution with naphtha was 100 grams/sq. ft./hour. Example 3 is directed to the batchwise cultivation of Candida melibiosi on a normal paraffin fraction obtained by molecular sieve extraction of a hydrogenated gas oil. The product obtained in the fermenter was composed of 0À9% yeast (dry weight), 0À5% residual normal paraffins and 98À6% aqueous media. This was diluted with naphtha and n-hexane and filtered; the filtration rate was 57 grams/sq. ft./hour as against 42À5 grams/sq. ft./hour without the dilution with naphtha.
Patent GB-1002218-A (GB)
Title: Separation of chlorides from waste liquor combustion gases
IPC: B01D47/00
Filed: 1963-12-03
Abstract: In a method of washing gases from the combustion of waste sulphite or sulphate liquors to remove chlorides therefrom the hot gases are passed through a horizontal conduit at a gas velocity of 10-20 metres per second and washed therein with water at a temperature of 0-98 DEG C. injected as droplets with an average size of 0,1-0,5mm. in an amount in excess of the amount required to saturate the gases with moisture, the excess being such that the temperature of the gas is lowered to 0,2-2,0  DEG C. below the dew point of the saturated gases.  The water may be injected from flat nozzles directed transversely of the direction of flow of the gases or from conical jets directed counter-currently to the gas flow.  The water injected preferably has a temperature between 0  DEG C. and 20  DEG C., an average droplet size of 0,15-0,3 mm.  The amount of water injected may be 0,05-0,2 litres per cubic metre of gas (normal conditions). Washing liquid is separated from the gases in a spray condenser.
Patent GB-1306278-A (GB)
IPC: F16L37/12
Filed: 1970-10-09
Abstract: 1306278 Pipe coupling AMP Inc 9 Oct 1970 [15 Oct 1969] 48115/70 Addition to 1167779 Heading F2G In a pipe coupling, a pipe 6 having circumferential grooves 14 is received in a tubular body member 1 to abut a shoulder 5 and a rigid sleeve 11 is fitted over the body member, displacing material into sealing engagement with the pipe 6. In one embodiment, shown in Fig. 1, the body portion 1, only half of which is shown may be of resilient synthetic resin formed with external circumferential grooves 7. The sleeve 11 may be of metal and has a sharp lipped end 12. The jaws of a tool are disposed around the sleeve behind a flange 13 and behind a flange 2 on the body member 1, the jaws being moved together to effect the connection wherein material from the body is displaced into the grooves 14.  In another embodiment, shown in Fig. 4, a metal pipe 23 having an internal groove 24, is connected to a resilient plastics pipe 37 by the coupling which further includes a tubular extension 20, having an O-ring 28 and internal collar 25, and an insert member 33. With the pipe 23 located on the body extension 20, the sleeve 30 is urged on to the tapered, serrated portion 29 by means of the tool. The pipe 37 and insert 33 are advanced so that the leading part 34 of the insert urges the material of the collar 25 into the groove 24, serrations 35 on the insert engage the flange aperture of the body member and material from the serrations 29 forces the plastics material of the pipe 37 to protrude into grooves 36 on the insert.
Patent GB-1485875-A (GB)
Title: Manufacture of magnetic discs
IPC: C09D5/23
Filed: 1974-11-07
Abstract: 1485875 Magnetic coatings on discs BASF AG 7 Nov 1974 [8 Nov 19731 48185/74 Heading B2E [Also in Division C3] A non-magnetic disc, e.g. of optionally anodized Al or Al alloy, is coated on one or both sides with a polished, hard pigmentcontaining resin, and then with a magnetic coating composition which comprises a finelydivided magnetic pigment in a binder comprising volatile organic solvent(s) and a mixture of, by weight, 60-90% of a mixture of (A) an epoxy resin and 10-35% based on (A), of a reaction product (D) of (d.1) an epoxy-containing polycondensate of bisphenol-A and epichlorohydrin with (d.2) the N- methylolamide of an olefinically unsaturated C 3-5  acid, or by a compatible compolymer of (D); 5-25% (B) a resole; and 5-30% (C) an etherified melamine-formaldehyde resin; where (A) is a solid curable bisphenol-A/epichlorohydrin resin of epoxy E.W. 400-500, (B) is a curable allyoxybenzene/formaldehyde condensate with free or etherified methylol groups, with M.W. <1000, and (C) has >2 etherified methylol groups and M.W. <3000, (d.1) being either (A) or a polycondensate of MW <400 and epoxy value 0.5-1. (D) may be where R is H or CH 3  and n=2-30. The compatible copolymer of (D) may be formed with an acrylic or methacrylic acid ester. Per part by weight of the binder there may be 0.5-3 parts magnetic pigment, e.g. Fe 3 O 4  or acicular γ-Fe 2 O 3 , with av. particle size 0.1-2 Ám, preferably treated with R 3 SiOSO 2 NCO where R is C 1-18  alkyl. Also present may be polysiloxane and non-magnetic powder of Moh hardness >6, with particle size 0.5-1.5 X the final magnetic coating thickness, e.g. corundum, non- magnetic Fe oxide, or B carbide. By wt based on (binder + magnetic pigment) there may be 100-150% solvent(s). Many solvents are specified. After coating, the magnetic coating is dried, cured at e.g. 180-250‹C and ground or polished. The coating may be 0.5 Ám thick. The coating compositions may be applied by spraying on one or both sides of the slowly rotating disc, which may be inclined, followed by rotating the disc at a higher speed to adjust the coating thickness. Specification 1466798 is referred to.
Patent GB-1055869-A (GB)
Title: Slide projectors
IPC: G03B23/04
Filed: 1965-11-15
Abstract: 1,055,869. Slide projection apparatus. VOIGTLANDER A. G. Nov. 15,1965 [Nov. 13, 1964], No.48419/65. Heading G2J. A motor- or manually-operated slide changing device 30 is reciprocated to move slides from a vertical supply stack 27 at one side of the projection axis into a receptacle 51 on the other side of the axis, the forward movement of slide changer 30 first ejecting any slide in a pivotable gate frame 21, then introducing a new slide into the gate, and finally camming the frame 21 to pivot about shaft 23 from a horizontal position into a vertical position which the slide intercepts the projection beam. The return movement of slide changer 30 lowers frame 21 to the horizontal position and leaves the slide in the frame for ejection by the next forward movement. Lug 40 on the slide charger has a pin which engages groove 42 on the external surface of the bearing 22 of gate 21 to provide the camming action. Driving members 33 of changer 30 each have a bevelled upper surface which separates the driven slide from those resting upon it to ensure that only the lowest slide 24 is moved. Holding lugs 39 of a spring-loaded lever 36 pivoted at 37 are engaged by the advancing slide 24 and displaced, as in Fig. 3 (not shown), but a second slide carried forward possibly by friction cannot so displace the lugs. Receptacle 51 folds flat into the projector housing when not in use. The optical system includes lamp 5, reflector 6, condensers 7 and 8, and a heat filter 9; a focusing objective 2 is provided. Transformer 11 supplies the lamp, and a motor-driven fan may be included, the roof of the lamphouse comprising a ventilation grid which hinges open. Slides may also be transferred from stack 27 to receptacle 51 without projection if slide changer 30 is not pushed on into the gate camming position. A locking slide 65 may be used to move a projection 68 into the path of changer 30 for this purpose as in Fig. 2 (not shown). A friction clutch is necessary when using this device with motordriven slide changing. The projector legs may be extensible to permit the use of different sized receptacles 51.
Patent GB-1156630-A (GB)
Title: Unsaturated Suphonic Acid Betaines
Inventor: RINKLER HEINRICH
IPC: C09K3/16
Filed: 1966-10-31
Abstract: 1,156,630. Unsaturated sulphonic acid betaines. FARBENFABRIKEN BAYER A.G. 31 Oct., 1966 [16 Dec., 1965], No. 48729/66. Heading C2C. Novel unsaturated sulphonic acid betaines of the general formula wherein R 1  is an alkenyl or aralkenyl radical, R 2  and R 3  are the same or different alkyl radicals, R 4 , R 5  and R 6  are hydrogen or C 1 -C 4  alkyl radicals, X is hydrogen or a C 1 -C 4  alkyl radical, Y is an aliphatic or aromatic radical and m is 1 or 2, are prepared by reacting a substituted hydrazide of the general formula with an aliphatic sultone of the formula Substituted hydrazides of the second formula above are prepared by reacting the required ethyl oxalate-N,N-dialkyl hydrazide with the required ester of the formula R 1 COOYN(X)H, wherein R 1 , Y and X have the above significance; or by reacting the required aminophenol with diethyl oxalate, treating the resulting ester of the formula HO-Y-N(X)COCOOC 2 H 5  wherein Y is an aromatic radical, with N,N- dialkyl-hydrazine and the resulting hydrazide of the formula HO-Y-N(X)COCONHNH 2  with R 1 COCl; or by reacting the required ethyl oxalate-N,N-dialkyl hydrazide with N-alkylalkanolamine and treating the resulting hydrazide of the formula HO-Z-N(X)COCONHNH 2  with R 1 COCl, where X has the above significance and Z is an aliphatic group, with R 1 COCl.
Patent GB-1327113-A (GB)
Title: Machine for attaching snap fastener elements to one another with material clamped there between
IPC: A41H37/04
Filed: 1970-10-16
Abstract: 1327113 Fastener attaching machine TEXTRON Inc 16 Oct 1970 [12 Nov 1969] 49321/70 Heading A3H [Also in Division B4] A machine for attaching snap fastener elements, e.g. backing plate element 18 and socket element 20 to each other with material clamped therebetween, feeds two strips of the elements by a feed mechanism comprising arms 90, 108 with grippers 98, 118 from for example two strip reels (Fig. 1, not shown), and guides 94, 114 into adjacent positions where the leading elements face each other. A knife mechanism comprising knife blades 132, 175 severs the leading elements from the strip and the elements are clinched onto the material by a cooperating ram 140 and spring-loaded pivoted anvil 156 mechanism. The ram and anvil and feeding mechanisms are actuated via linkage elements 48-60 and 70-108 respectively by a pneumatic cylinder assembly where both the cylinder body 34 and piston shaft 46 are movable relative to their supports, the knife mechanism is operated by plunger 146 on the ram and by a pivotal movement of the anvil. Preferably one element is severed before clamping, the other afterwards. The knives may be manually operated and after each cycle of operations the cylinder 34 is discharged, automatically by a switch mechanism (214, Fig. 7, not shown) associated with the pivoting anvil. The system may also be initiated automatically or manually. (For Figures see next page)
Patent GB-1065724-A (GB)
Title: Improvements relating to razor blades and to methods of manufacture thereof
Inventor: HANSOM BERNARD STEPHEN
IPC: B26B21/58
Filed: 1963-06-04
Abstract: At least the surface region of at least the cutting edge of a razor blade comprises an oxide, nitride or boride of titanium. The compounds may be applied to a tough tool steel blade by electrodeposition followed by carburizing or nitriding: by electrophoretic deposition of metals and particles of the compounds: by salt-bath heat treatment; by flame-spraying: by resin-bonding: or by sintering and exposure of the blade to gases at elevated temperatures. The blades may subsequently be spark hardened.ALSO:At least the surface region of at least the cutting edge of a razor blade comprises an oxide, nitride or boride of titanium. The compound may be applied to a tough tool steel blade by flame spraying.
Patent GB-1291605-A (GB)
Title: Apparatus for processing radar video signals to obtain angle coordinate and range data
Inventor: POPTU Y F VAN
IPC: G01S13/72
Filed: 1969-10-13
Abstract: 1291605 Pulse radar HOLLANDSE SIGNAALAPPARATEN NV - 13 Oct 1969 [18 Oct 1968] 50221/69 Heading H4D . Pulse radar in which during every transmitter pulse period video signals are quantised in length and written via a buffer register into the store of an electronic digital computer, the register being divided into a number of elements, at least some of which correspond to time intervals shorter than the transmitter pulse, each representing an increment of one target co-ordinate wherein the computer is programmed to determine the position of a target by selecting a group of bits from the total of bits written into the store for a number of transmitter pulses. A quantizer 2 includes of an arrangement 8 of m."and" gates successively opened by the outputs from an m + 1 bit shift register 7, clocked by generator 6 operating at m+1 times the transmitter, p.r.f., the clock period being shorter than the transmitter pulse length. If at any time during a transmitter pulse period a video signal is detected by the radar which is passed by the threshold circuit 5, a logical '1' will be stored in the buffer register 3 at a position corresponding to the time lapse from the transmitter pulse i.e. denoting the range of the target. Each video return may be passed by several gates depending on its length (Fig. 4, not shown). The outputs of the "and" gates determine the state of m bi-stable elements forming the buffer register 3. At the end of the transmission pulse period the column of digits corresponding to that pulse is written into the store of the computer 4, and the shift register 7, and buffer register 3 are reset to zero. For the desired azimuth sector scan, there will be n pulses transmitted resulting in n columns of m digits. This array forms a map (Fig. 5) from which the computer is programmed to select the target to be tracked and determines its position in azimuth and range. In a second embodiment the map is divided into three sections the centre one having range increments shorter than the outer ones. This is obtained by replacing the shift register 7 by two shift registers one operating at a higher rate and using these alternately. (Fig. 1, not shown). The invention may be used to perform the elevation scan in a 3-dimensional radar system e.g. in conjunction with apparatus described in Specification 1,291,130 which uses a frequency dependent aerial to perform the elevation scan. In this arrangement the shift register would be clocked by pulses from the frequency control unit of the transmitter. The invention may also be used in a height finding radar, operating in elevation and range.
Patent GB-1121310-A (GB)
Title: Improvements in apparatus for the measurement of internal friction of material
Inventor: CHEETHAM IVAN CLIFFORD
IPC: G01N3/56
Filed: 1964-12-10
Abstract: 1,121,310. Measuring internal friction electrically. DUNLOP CO. Ltd. Dec. 1, 1965 [Dec. 10, 1964], No. 50244/64. Heading G1N An annular specimen 24, Fig. 1 of a material of which the internal friction is to be measured, is attached to a plate 23 fixed to a shaft 21 which is constrained to rotate against the resisting torque of a coil spring 40, by a plurality of balls 15 sandwiched between the specimen and a further annular member 14, which is rotated at a constant speed by an electric motor. The angular displacement of the plate 23 is measured by a fixed pointer 39 and a graduated disc 38 attached to the shaft 21; or else by a potentiometer 47 having a moving tap 45 connected to the shaft 21, this displacement representing the internal friction. The contact 45 is normally out of engagement with the potentiometer track 47 and is biased into engagement by solenoids 51 which act via a member 48 to depress the potentiometer arm and produce an output signal at regular intervals thus enabling a series of points on a chart to be plotted. Values of internal friction are plotted during a continuous change in temperature of the specimen produced by filling a reservoir 25 attached to the specimen carrying plate 23, with liquid nitrogen and allowing this to evaporate. Elevated temperatures are achieved by a heating coil 32, or by blowing hot air into the glass chamber 36 enclosing the plates. The temperature of the specimen is measured with a thermocouple 34. A paddle wheel 42 in an annular oil bath 43 damps the rotational movements of the shaft, 21; and a weight 52 at the bottom of the shaft 21, which is mounted in needle point bearings 26, 53, provides the required axial force between the sample plate 23 and the driver plate 14.
Patent GB-1404587-A (GB)
Title: Interpolation circuits
IPC: H03M1/66
Filed: 1971-10-30
Abstract: 1404587 Digital to analogue converters EMI Ltd 30 Oct 1972 [30 Oct 1971] 59551/71 Heading H3H In forming an audio signal from digitally coded input signals using interpolation to reduce noise, the difference between successive pairs of input signals is converted to an analogue signal, integrated at 6 and fed through a low pass filter, 7, 14, 15, the time constant of which is varied in dependence on the time elapsed since the last non-zero output from the subtraction circuit 4. The sampling periods are counted in a counter 20 which is cleared whenever a non- zero difference occurs, the output of the counter controlling field effect transistors 11, 12, 13 to switch in or out resistances 8, 9, 10 to control the time constant of the filter. The time constant of 14, 15 alone is about 1/3 of the sampling period. To avoid loss of early portions of changes occuring after a long steady state, a delay may be included in the main channel between the subtracting circuit 4 and the filter.
Patent GB-1388312-A (GB)
Title: Antiviral nucleoside 3,5,-cyclic monophosphates
IPC: C07H19/20
Filed: 1972-11-02
Abstract: 1388312 Arabinofuranosyl adenine-3<SP>1</SP>,5<SP>1</SP>- cyclic monophosphate ICN PHARMACEUTICALS Inc 2 Nov 1972 50557/72 Heading C2P The invention comprises 9-beta-D-arabinofuranosyl adenine-3<SP>1</SP>,5<SP>1</SP>-cyclic monophosphate and pharmaceutically acceptable salts thereof which may be prepared by reacting 8-halo- 3<SP>1</SP>,5<SP>1</SP>-cyclic adenosine monophosphate in a basic solution with an appropriate leaving group acid chloride to replace the H in the 2<SP>1</SP>-OH group with a leaving group (LG), either (a) reacting the compound obtained with an acetic acid/sodium acetate solution to produce Z<SP>1</SP>-OLG - 8 - hydroxy - adenosine - 3<SP>1</SP>,5<SP>1</SP> - cyclophosphate and subjecting this to a base catalysed cyclization reaction to produce 8-2<SP>1</SP>-anhydro- 8 - oxy - 9 - beta - D - arabinofuranosyladenine - 3<SP>1</SP>,5<SP>1</SP> - cyclic monophosphate or (b) reacting the compound containing the 2<SP>1</SP>-OLG group with methanolic ammonia to produce the above 8-2<SP>1</SP>-anhydro compound, reacting this with liquid H 2 S to produce 8-mercapto-9-beta- D - arabinofuranosyladenine - 3<SP>1</SP>,5<SP>1</SP> - cyclic monophosphate and finally subjecting this to catalytic reductive desulphurization. The compound of the invention and its pharmaceutically acceptable salts may be used as the active ingredients in conventional antiviral compositions.