baber/WOPTO huggingface dataset:
Patent GB-1296033-A (GB)
IPC: H01H3/24
Filed: 1968-10-29
Abstract: 1296033 Flexible chamber air pumps HERGA ELECTRIC Ltd 29 Jan 1970 [29 Oct 1968 13 March 1969] 51258/68 and 13217/69 Heading F1N [Also in Division H1] Apparatus for the remote fluid-pressure control of an electric switch, comprising a handle 10, Fig.1 having a flexible gripping portion 22 forming a master bellows chamber 32 coupled through a fluid conduit 20 to a slave bellows (44) Fig. 5 (not shown) for operating the remote switch (50). In the example shown in Fig.1 the handle 10 is mounted on a rigid tubular support 12 containing the fluid conduit 20 which is connected to the chamber 32 through passages 18, 34, 36 within the handle wall 26 and a rigid end support plug 16. In other examples a flexible bellows (80) Fig.9 (not shown) is mounted entirely within the rigid tubular support and actuated by a lever (94) extending through the rigid tube in the region of the handle grip. In another modification a non-deformable plastic hand grip may be provided on the tubular support and a small master bellows (72) Fig.7 (not shown) is mounted externally of the rigid tube in the region of the operator's thumb.
Patent GB-1306274-A (GB)
IPC: A45D40/06
Filed: 1970-06-08
Abstract: 1306274 Lipstick holders EYELET SPECIALTY CO 8 June 1970 27679/70 Heading B8P A cylindrical lipstick carrier 10 slidably mounted in an inner tubular member 11 of a lipstick device has driving pins 13 which project through longitudinal slots 12 in the inner member 11 into a cam track 13a on a rotatable outer sleeve 14, and has a thin, broad, annular antiwobble band 15 spaced inwardly of its outer end. The carrier 10 also includes resiliently mounted projections 16 on its lower part. The anti-wobble band and the projections engage the inner member 11. The carrier 10 is moulded in one piece from plastics material.
Patent GB-1308138-A (GB)
Title: Antifoggant for photographic silver halide materials
IPC: C07F9/54
Filed: 1969-06-27
Abstract: 1308138 Selenium-containing compounds AGFA-GEVAERT 16 June 1970 [27 June 1969] 32640/69 Headings C2C and C2P [Also in Division G2] The compound is prepared by heating tributylphosphine selenide and propane sultone for 30 minutes at 100 C. Tributylphosphine selenide is prepared by mixing equimolecular amounts of tributylphosphine and selenium in toluene at room temperature and then by reflux. The compound H 3 C-Se-P<SP>+</SP>(C 6 H 5 ) 3 .CH 3 SO 4 <SP>-</SP> is prepared by heating triphenylphosphine selenide (prepared as described in Inorg. Synth., 10, 157 (1967)) in dimethyl sulphate for 30 minutes at 100 C. 2 - Methyl - 6 - cyanoseleno - benzthiazole is prepared by diazotizing 2-methyl-6-aminobenzthiazole in aqueous hydrochloric acid at 0 C. with sodium nitrite in water, buffering the solution to pH4 with sodium acetate and adding an aqueous solution of potassium selenocyanate.
Patent GB-1309388-A (GB)
Title: Methods and apparatus for testing and correcting gearbox selector  forks
IPC: B21D3/14
Filed: 1969-10-04
Abstract: 1309388 Testing gear box forks ALUMINIUM BRONZE CO Ltd 5 Oct 1970 [4 Oct 1969] 48849/69 Heading G1M A gearbox selector fork, Fig. 1, is clamped to contact datum surfaces 44 between pairs of jaws 46, 50, Figs. 3, 4, so that light from a lamp 10 is reflected by mirrors 14, 18, 22 and a lens 20 on to a target screen 26, Fig. 2, the mirror 18 being fixed to a stud 32 inserted into the bore 42 of the fork. The jaws 50 are each fixed to a pivoted lever 52 operated by a cam 58 moved by a pneumatic ram 60 and the jaw carriers 48 may be moved by rams 62. The degree of distortion of the fork may be gauged by the position of the point of light on the target relative to the centre 28 and means responsive to the position of the light relative to the target divisions and the target centre may be operated to automatically apply corrective bending forces to the fork. Manual correction may however be applied instead of automatic operation and one limb at a time of the fork may be released to allow the correcting forces to remove the distortion. (For figure see next page)
Patent GB-1312900-A (GB)
Title: Heat storage materials
IPC: C09K5/06
Filed: 1970-08-04
Abstract: 1312900 Thermal storage containers for beverages J W RYAN and W H SHAPERO 4 Aug 1970 40566/72 Divided out of 1311955 Heading F4U A thermal storage material for use in the beverage container of the parent Specification 1,311,955 comprises from 20 to 50% by weight of aluminium flake powder and from 80 to 50% by weight of a normally solid paraffin.
Patent GB-1314298-A (GB)
Title: Coupling particularly a hose coupling
IPC: F16L19/00
Filed: 1971-11-08
Abstract: 1314298 Pipe couplings G KEMPPAINEN 8 Nov 1971 51779/71 Heading F2G A ring nut tightening lever 20 is engaged in a socket 19, carried by a plate 10, which is rotatably mounted on the ring nut 4. As the lever 20 is oscillated, to tighten or loosen a pipe coupling, a resiliently-urged tooth (14, Fig. 2, not shown) engages ratchet grooves 8 to rotate the nut 4 in one direction. The tooth (14) may be reversed, so that rotation is imparted to the nut in the reverse direction, or in an intermediate position, held clear of the grooves 8.
Patent GB-1316581-A (GB)
Title: Oxygen bearing aluminum complex and apparatus and methods for  producing same
IPC: C01B15/043
Filed: 1970-04-11
Abstract: 1316581 Aluminium-oxygen complex G G MERKL 11 April 1970 58310/69 Heading ClA A method for preparing an aluminium-oxygen complex containing an excess of oxygen over the normal ratio of 3 atoms of oxygen to 2 atoms of aluminium found in the common aluminium oxide Al 2 O 3  comprises reacting at a temperature below 150‹ F. aluminium metal containing not more than 5% by weight of other impurities with aqueous hydrochloric acid in the presence of mercury and an oxygen-containing atmosphere which contacts a part of the aluminium metal or a part of the aluminium metal permeated by the mercury, whereby the complex forms on the surface of the aluminium metal or mercury-permeated aluminium metal exposed to the atmosphere. In one procedure a rod of aluminium freed of surface oxide and wetted with mercury is allowed to stand or float in mercury with the portion above the mercury almost covered by dilute hydrochloric acid except for a portion at the top which will be wet, but stick into the air. Caesium, vanadium, zirconium, thorium, lanthanum, hafnium, titanium, thallium, palladium and niobium promote the reaction. The reaction is also assisted by U.V. radiation, preferably of 1000 Š. Mercury compounds which liberate elemental mercury under the reaction conditions may be used as the mercury source. Aluminium, after removal of surface oxide, may be shaken with mercuric oxide until it coats the piece of aluminium, and the HgO decomposes to Hg and oxygen. Mercuric chloride or sulphate can also be used.
Patent GB-1319193-A (GB)
Title: Fans
IPC: F04D29/36
Filed: 1971-04-28
Abstract: 1319193 Axial-flow fans FOLKES BELTING CO Ltd 12 Jan 1972 [28 April 1971] 11921/71 Addition to 1272645 Heading F1C In a fan of which at least one blade is capable of moving to change its pitch, a temperaturesensitive element is provided on the fan and arranged to move the blade to increase the pitch abruptly when the ambient temperature exceeds a predetermined value. The motor vehicle cooling fan shown comprises two or more flexible blades 2 of rubber, metal or plastics secured, as by rivets or bolts 3 or adhesive to a rigid central portion 1 of metal or plastics. When the ambient temperature at the fan is below a predetermined value, the blades 2 are free to flex to a reduced pitch under the influence of aerodynamic forces as the fan speed increases. When the predetermined value is reached, a bi-metallic strip 6 which is riveted or bolted to the central portion 1 at 7 abruptly flexes from a configuration in which it is straight longitudinally and curved transversely to a configuration in which it is curved longitudinally and flat transversely. The tip of the strip 6 then presses against the reinforced edge 4 of the adjacent blade 2 to move the blade into a position of high pitch. This abrupt pitch change may occur at different temperatures for different blades. A flat spring may be interposed between the strip 6 and the edge 4 so as to hold the blade at maximum pitch until a predetermined aerodynamic force is reached. An additional bi-metallic piece may be provided with its tip pressing against the edge 4 so as to limit or vary pitch change at temperatures below the predetermined value. Instead of being flexible, the blades may be substantially rigid and attached to the central portion 1 by a hinge or a narrow strip of flexible material, the restraint against movement to a low pitch position being imposed by the above-mentioned spring and/or the narrow strip.
Patent GB-1320083-A (GB)
Title: Apparatus and method for the treatment of particles in a  fluidised bed with the aid of a gas flow
IPC: F26B3/08
Filed: 1971-08-09
Abstract: 1320083 Pneumatic conveyers DROOGTECHNIEK EN LUCHTBEHANDELING NV 9 Aug 1971 37307/71 Heading B8A [Also in Division F4] Particles are dried or otherwise treated by the fluidizing gas in a fluidized bed which is divided into series of chambers 1, the particles being fed continually into the first chamber and intermittently out of each chamber at the bottom through valves 6 which are controlled so that at least one is closed at any one time to prevent continuous discharge, and so that both the entry and exit valves of each chamber after the first remain closed for a predetermined period to ensure that all particles are treated for at least that period. In the embodiment shown, Fig. 3, successive chambers 1 are positioned at lower levels so that each chamber is emptied completely. The apertures 9 (Fig. 4, not shown) in the perforated base 3 of each chamber 1 are inclined so that the fluidizing gas and hence the particles adjacent the base are directed towards the exit valve 6. The flap of each valve 6 may overlie the portion 10 (Fig. 5, not shown) of partition 2 immediately below the valve opening, this portion (10) being perforated so that gas from a chamber 5 blows through to clean the valve flap while the valve is open. In another embodiment (Fig. 1 not shown) the chambers 1 are on the same level so that opening the valve between adjacent chambers merely equalizes the levels and does not completely empty one chamber. In another embodiments the chambers may be separate containers connected by ducts and may have different floor areas, and the two systems may be mixed. Hot gas for drying may be passed through earlier chambers and cooling gas through the last.
Patent GB-1320757-A (GB)
Title: Photographic material
IPC: G03C1/76
Filed: 1970-05-12
Abstract: 1320757 Photographic silver halide materials ILFORD Ltd 3 May 1971 [12 May 1970] 22974/70 Heading G2C A photographic material comprises at least one photographic silver halide emulsion layer or at least one emulsion layer which contains a developed silver image and as a protective supercoat layer a water-permeable colloid layer which has dispersed therein a phosphate tri-ester of the general formula wherein R is an alkyl group containing from 1 to 20 carbon atoms or an alkoryl group containing from 7 to 20 carbon atoms, the said ester being substantive for the colloid layer, substantially colourless and having a boiling point greater than 200‹ C. Examples of suitable esters are tri-cresyl phosphate and tributyl phosphate. The colloid may be gelatine.
Patent GB-1323686-A (GB)
Title: Welding
IPC: F16D1/068
Filed: 1969-11-26
Abstract: 1323686 Welding by fusion; jointing DEFENCE SECRETARY OF STATE FOR 28 Oct 1970 [26 Nov 1969] 57807/69 Headings B3R and B3V [Also in Division F2] A method of securing an annular member on or within a hollow shaft in forced abutment with a stop on the shaft comprises applying to the annular member when mounted on the shaft a force directed towards the stop, directing a beam of heat energy radially firstly through the shaft wall and then through the annular member to weld them together, the heating effect being greater in the material of the shaft so that upon cooling a residual shrinkage stress is created which presses the end face of the annular member against the stop. The method may be applied to electron beam welding a retaining collar 19 on a shaft 13 to hold the inner track 11 of a roller bearing 12 against a step 14 on the shaft, a load 22 being applied to the collar during welding. In a further embodiment (Fig. 2, not shown) a bearing is secured internally of the hollow shaft. The method may also be applied to securing a disc or gear to a shaft.
Patent GB-1326001-A (GB)
Title: Flexible seal
IPC: B60V1/16
Filed: 1970-08-12
Abstract: 1326001 Corrugating sheets AIR CUSHION EQUIPMENT Ltd 12 Aug 1970 [12 May 1969] 24045/69 Heading D1S [Also in Divisions A5 and B7] A method of producing a flexible fluid seal comprises the steps of inwardly folding and hence corrugating the peripheral edge of a sector shaped as circular sheet 10, Fig. 3, followed by securing the corrugations so formed either directly or indirectly to the overlapping portion of the sheet to form a plurality of pockets 14. The edges 15 of the corrugations are secured either by stitching or welding or adhesively alternatively in a modified seal a wire ring 19, Fig. 6, is passed through the pockets 14, the wire being attached to the overlapping sheet by strips 20. The sheet 10 of fabric or other flexible material may have depending web members (23), Fig. 12 (not shown), of triangular or trapesium shape, which upon folding are attached in the manner previously described, i.e. by sealing at the apex, securing along the sloping edge or by attachment to a wire ring (22). In another embodiment U-shaped members 25, Fig. 13, may be radially mounted, cuts 26 being made between the limbs such that on folding, the U-shaped member is engageable with the sheet and the limbs from pocket walls. Radially extending strips, attachable to the sheet may also be adapted for securement after folding. The seal may form the edge of a plenum chamber above which a load may be supported.
Patent GB-1330414-A (GB)
Title: Fluid actuated vibrator devices
IPC: B65G27/00
Filed: 1972-02-24
Abstract: 1330414 Vibrators J W A WESTWOOD 24 Feb 1972 [5 March 1971] 6204/71 Heading F2X A vibrator comprises a piston slidably disposed in a cylinder, there being ports in the cylinder through which gaseous fluid under pressure can be supplied and exhausted to cause reciprocation of the piston, either or both of the interengaging cylindrical surfaces of the piston and cylinder being formed of a material having a low coefficient of friction and the vibrator being run without an additional lubricant between these surfaces. In one such vibrator, the cylinder 23 is lined with two sleeves 29, 30 separated at their adjacent ends to form an annular recess 31. Communicating with this recess is an inlet port 32 in the cylinder 23, in which cylinder there are also outlet ports 33, 34 on either side of the inlet port 32. The piston 26 has L-shaped passages 27, 28 formed in it and these enable either the inlet port 32 or one of the outlet ports 33, 34 to communicate with an end space of the cylinder 23, according to the position of the piston 26. In the position shown, there is no such communication and in order to start the vibrator, the applied pressure is reversed several times at the inlet port 32 and this has the effect of causing small movements of the piston. After some reversals of pressure the piston will normally move to allow full flow through either of the passages 27, 28, whereupon normal operation commences. The sleeves 29, 30 are formed of a material of low coefficient of friction, for example, tin or leadbronze in which graphite is impregnated, iron or nickel (or an iron-nickel alloy) in which graphite is distributed, reinforced polytetrafluoroethylene, nylon containing molybdenum disulphide, or plastics materials of ceramic-like formulation and having fillings of lubricant substances. In an alternative construction (Fig. 2, not shown), the cylinder has the inlet port at one end and a spring at the other, the piston being urged against the spring by the applied pressure until an exhaust port is uncovered by the piston, whereupon the gas escapes and the piston returns towards its original position, which sequence is then repeated.
Patent GB-1332042-A (GB)
Title: Photographic sensitising dyes
IPC: G03C1/18
Filed: 1972-03-29
Abstract: 1332042 Benzimidazole derivatives ILFORD Ltd 29 March 1972 [22 April 1971] 10889/71 Heading C2C [Also in Divisions C4 and G2] 1 - Ethyl - 2 - methyl - 5 - phenylthio - benzimidazole is prepared by mixing diazotized 5-amino- 1-ethyl-2-methylbenzimidazole, thiophenol, Na acetate and Cu bronze and extracting with chloroform. 1 - Ethyl - 2 - methyl - 5 - p - tolylthio - benzimidazole is prepared similarly.
Patent GB-1332671-A (GB)
Title: Integral honeycomb mounting base for a printing plate
IPC: H03M1/00
Filed: 1971-04-19
Abstract: 1332671 Analog/digital converters GENERAL ELECTRIC CO Ltd 19 April 1971 [4 March 1970] 10399/70 Heading G4H In a balanced multistage coder, for each stage of which one bit of a monophylic coded signal representing the input is derived, the common reference signal for each stage may be varied to alter the gain of the circuit. As described each stage comprises two units as shown in Fig. 2b (except that for the first stage the reference source is excluded). The first receives at its input V = V I  - V R  and delivers at the X output terminal |2V| when V I  is less than V R  and at its Y output terminal - |2V| when V I  is greater than V R . The second receives at its input - V= - V I  + V R  and delivers at its X output terminal |2V|, when V I  is greater than V R  and at its Y output terminal - |2V when V I  is less than V R  so that by combining the signals at the X output terminals on to a first lead and the signals on the Y output terminals on a second lead output signals |2V| and - |2V| are delivered to the first and second units respectively of the next stage. The reference signal + V R  and - V R  fed to the two units may be varied to V R (1+D) and -V R (1+D) to vary the gain; the characteristic of each stage being extended regularly and proportionally with the displacement of the reference signal. The system may be used in the P.C.M. transmission of F.D.M. signals since the quantizing noise level in P.C.M. is a function of the quantum step size and independent of the loading, resulting in a degradation of the signal/noise ratio in light loading conditions. By reducing the reference level however the step size is reduced and hence the noise level. The appartus may also be used to accommodate a larger or smaller picture level range in a TV camera. The reference level may be made dependent on the average value of the input. Reference has been directed by the Comptroller to Specification 1,040,614.
Patent GB-1333321-A (GB)
Title: Mining tunnelling or drifting machines
IPC: E21C31/12
Filed: 1971-01-27
Abstract: 1333321 Mining machines; gearing DEMAG AG 27 Jan 1971 3264/71 Heading E1F [Also in Division F2] A mining machine has cutting means driven by reduction gearing having a housing rotatable within a support and a non-rotatable component supported in a torsionally resilient manner, with respect to both directions of rotation, by resilient elements fast with the support. The housing of a planetary reduction gear is rotatable within support housing 3 in sliding bearings. A stationary component of the gearing, e.g. the planet wheel carrier, has spaced axially extending lugs 5 retained between resilient thrust bearings, such as rubber buffers 4, carried by support housing 3.
Patent GB-1336433-A (GB)
Title: Tobacco-smoke
IPC: A24D3/02
Filed: 1970-10-07
Abstract: 1336433 Tobacco-smoke filters BRITISHAMERICAN TOBACCO CO Ltd 4 Oct 1971 [7 Oct 1970] 47706/70 Heading A2C Additive is introduced into a rod of tobaccosmoke filter material through holes pierced in the rod. The rod may be of extruded polyethylene or polypropylene foam material, and the additive, which affects the rod locally in the region of the holes to modify the filtration characteristics or to modify the smoke flavour, may be a solution or dispersion of organic or inorganic acidic or alkaline material or a slurry, e.g. of carbon, alumina, finely divided metals such as zinc, or small beads of ionexchange material. Specific substances mentioned are manganese dioxide, zinc oxide or acetate, polyethylene imines, lithium chloride, sodium carbonate, trisodium phosphate, ethylenediamine diacetate and zeloites, and for smoke flavour modification, menthol, sweetening agents etc. As shown, a rod 1 of wrapped filter material is pierced by reciprocating needles 5 and then passed through a bath 3 in which additive is maintained at a level 15 such that the rod is partially immersed. The rod need not be wrapped if it has an impervious outer surface. Suction is applied through a hood 23 fitting over the rod so that additive is drawn into the rod through the lower holes. On emerging from the bath the rod may be dried and cut into filter lengths, or it may be pierced with further holes and passed through a second bath containing a different additve before being dried and cut. The needles 5 may be operated simultaneously or alternately, or they may be offset and operated simultaneously. Aternatively, a single needle may be passed right through the rod, or holes may be pierced by a pair of spiked wheels or by a single spiked wheel with spikes slightly longer than the diameter of the rod, or the rod may be pierced by small holes arranged in bands or rings or at random. Alternative arrangement of both comprises a first chamber in which the rod is subjected to vacuum and a second chamber in which the rod is totally submerged in additive which may be pressurised, the rod entering and leaving the chambers through O-ring seals.
Patent GB-1337511-A (GB)
Title: Powder filling machine and method
IPC: B65B1/16
Filed: 1972-01-13
Abstract: 1337511 Machine and method for filling powder into containers PERRY INDUSTRIES Inc 13 Jan 1972 1728/72 Heading B8C In a machine for uniformly filling containers with powdered material measuring chambers 13 mounted on an intermittently rotatable, and vertically displaceable, disc 15 and connectible to a vacuum manifold 18 except at a position for discharge into a cartridge 23 where they are each connected to a pressure manifold 19, each measuring chamber 13 has, as one of its walls, a gas pervious, but powder impervious, material which wall is situated between the source of vacuum, or pressure, and the measuring chamber proper. Excess powder sucked up, as the chambers 13 descend, one at a time, into the powder in a powder vessel 4, is removed by a non-metallic wire 29 as the chambers 13 are indexed towards the discharge position where each container, in turn, is lowered and the vacuum source 18 is replaced by source of pressure from the manifold 19 to discharge the powder therein into the corresponding one of a number of cartridges 23. The latter are mounted in pairs in boats 22 which are moved, in synchronism with the disc 15 along a track 24 by means of a star wheel 25. The plate 15 is mounted upon a shaft 20 which is periodically turned by a gear 26 which meshes with a gear 31 on an eight-station, intermittently-rotatable, air table 30 which carries the star wheel 25. The periodic raising and lowering of the plate 15 at the filling and discharging stations is effected by an aircylinder 27. The powder vessel 4, which is mounted for intermittent movement by an air cylinder 8 and ratchet wheel 7, has a feed auger 3 in a supply hopper 1, and a distributer cone 11, the upper surface of the powder being maintained level, and the powder non-lumpy, by a non-metallic blade and rake 6.