baber/WOPTO huggingface dataset:
Patent GB-250149-A (GB)
Title: Improvements in or relating to thermometers
IPC: G01K1/06
Filed: 1926-01-15
Abstract: 250,149. Zeal, H. H. Jan. 15, 1926. Thermometers. - In an illuminable thermometer, such as an incubator thermometer which is generally in a dark position, the light is transmitted substantially along the axis of the thermometer tube. The Figures show an incubator thermometer with its tube a in front of an opaque plate b bearing the scale c. The end a of the tube a is formed as a plane surface and the end of the plate b is so shaped as to enable an electric-light bulb e to be mounted coaxially with the tube to direct its light along the bore, a shield f being provided for cutting off the light from direct vision. The thermometer tube may be bent, a total reflection surface being provided at each bend.
Patent GB-813214-A (GB)
Title: Alkylation of aromatic and hydroaromatic hydrocarbons
IPC: C07C2/54
Filed: 1957-01-14
Abstract: Aromatic or hydroaromatic hydrocarbons are alkylated with an olefin, the aromatic or hydroaromatic hydrocarbon being in molar excess, in the presence of a Friedel-Crafts catalyst and either (a) up to 50 per cent by weight based on the catalyst of an active clay or (b) up to 0.6 mol. of a nitrohydrocarbon per mol. of catalyst.  Specified catalysts are aluminium chloride or bromide, ferric chloride, zinc chloride, stannic chloride and zirconium chloride.  It may be premixed with the clay or nitro compound or added to the reaction zone separately.  Suitable nitro compounds are the nitroalkanes having up to 3 carbon atoms and the nitrobenzenoid compounds such as nitrobenzene and nitrotoluene; compounds of molecular weight below 150 are preferred.  Suitable active clays are fuller's earth, bentonite, nontronite, saponite, hectorite, kaolinite, dickite, nacrite, anauxite, halloysite, endellite and "Superfiltrol".  The free water content of the clay should be as low as possible since the total water content should not be above 400-500 p.p.m. based on the reaction mixture. The clay may be dried at 212-220 DEG  F., but not at so high a temperature that combined water or water of hydration is lost. Non-active bentonite clays may be activated by acid treatment at 212-220 DEG  F. for 2-12 hours, followed by drying and reducing to a powder.  Most clay separates with the catalyst complex when alkylation is complete, residual amounts may be removed by washing with water, all clay passing into the aqueous phase or is held at the interface.  Suitable hydrocarbon feeds are benzene, toluene, xylene, naphthalene, and tetrelin and in any case preferably have a molecular weight below 200.  Suitable olefines are ethylene, propylene, the butenes, 1-pentene, 1-decene, 1-dodecene, 1-octadecene, tetrapropylene, hexapropylene, or pentabutylene or mixtures; preferred alkenes, particularly for use in preparing detergent, have 5-20 carbon atoms.  The mol. ratio of hydrocarbon to olefine is preferably between 3 and 10 : 1, lower ratios may be used in batch procedure and higher ratios in continuous processes. The mol. ratio of catalyst to olefine may be between 0.03 and 0.1 : 1 and small amounts of hydrogen chloride or its equivalent such as water or an acid chloride may be added as a promoter, e.g. up to 0.4 per cent by weight of the total reactants. Temperatures of 25-90 DEG  C. are used with pressures up to 50 atmospheres when necessary in the case of gaseous olefines. Reaction times of 0.5-1 hour are suitable. Examples illustrate the use of mixtures of "Superfiltrol" and anhydrous aluminium chloride or zirconium tetrachloride, fuller's earth and aluminium chloride, and nitromethane or nitrobenzene and aluminium chloride in the alkylation of benzene with tetrapropylene.
Patent GB-555138-A (GB)
Title: Improvements in or relating to compressed-air systems
IPC: B60T15/48
Filed: 1942-02-03
Abstract: 555,138. Storing gases under pressure. BENDIX-WESTINGHOUSE AUTOMATIC AIR BRAKE CO. Feb. 3, 1942, No. 1449. Convention date, March 28, 1941. [Class 8 (ii)] [Also in Group XXXIV] In an arrangement of supply reservoirs for a fluid pressure brake system or other fluid pressure system, pressure fluid is supplied by the compressor to one reservoir until a predetermined pressure is reached after which pressure fluid is supplied to another reservoir and from this reservoir to the first reservoir, thus ensuring quickly a supply sufficient in the case of a brake system for a brake application. The initially charged reservoir is isolated in the event of rupture of the supply pipes leading to it. The vehicle brake system shown comprises reservoirs 12, 13, 14 assigned to supply brake actuators under the control of a driver's valve 19 of the self-lapping type through pipes 21, 24. A reducing valve 30 disposed between the compressor 10 and reservoir 12 comprises a piston valve 35 with fluted guide 38 whereby the lower face is subject to the pressure in the reservoir 12 through pipe 31 as well as to the pressure of a spring 37. A valve device 48 comprises a valve 55 carried by a diaphragm 53 subject to the pressure in the pipe 49 leading to the compressor and to the pressure of a spring 57. With the system at atmospheric pressure the valves 30, 48 are closed as shown. In charging the pressure fluid is initially supplied to the reservoir 12 through the valve 30 until the pressure in the pipe 49 and chamber 54 of the device 48 is sufficient to open the valve 55 the pressure in the reservoir 12 being less than the pressure in the pipe 49 by an amount dependent upon the pressure of the spring 37 and sufficient to effect a brake application. When the valve 55 opens, pressure fluid is supplied through pipe 50 to the reservoirs 13, 14 and when the pressure therein reaches that in the reservoir 12, pressure fluid is supplied to reservoir 12 from reservoirs 13, 14 through a non-return valve 39. The arrangement of the valves 30, 39 is such that they prevent flow from the reservoir 12 in the event of rupture of the supply connection leading to them. The arrangement of the reservoirs in series permits condensation of moisture in the pressure fluid before it reaches the valve 19.
Patent GB-1008883-A (GB)
Title: Improvements relating to apparatus for separating hop leaves from wort
IPC: C12C7/24
Filed: 1964-01-13
Abstract: 1,008,883. Separating hops from wort. P. ZOFFMANN. Jan. 13, 1964 [March 6, 1963], No. 1471/64. Heading B1D. Hop leaves and wort are delivered to hopper 11 which opens above opening 24 in an inclined perforated tube 22, in which rotates a screw 25 which conveys the hops upwards, the wort leaving container 15 at port 16. As shown, an open bottomed sieve 18 receives the mixture, most of the wort passing out of the perforations of sieve 18 direct to container 15. The bottom opening of sieve 18 registers with and is no bigger than opening 24 to ensure the hops all enter tube 22. Tube 22 joins at 31 a wider and shallower rectangular trough 30, also perforated, in which hops are washed by hot water from sprays 44. The hops may be compressed by terminating screw 25 below joint 31, which acts as a constriction below which hops "jam", and by reducing the height of trough 33 towards the discharge end. The screw 25 may extend to the end of tube 22 to avoid compression.
Patent GB-210089-A (GB)
Title: Improved machine for preparing living trees for colouring the wood
IPC: B27C3/08
Filed: 1924-01-21
Abstract: 210,089. Reimann, O. Jan. 22, 1923, [Convention date]. Drilling-machines. - A machine for boring living trees with intersecting sets of bores to receive colouring matters or dyestuffs, which are subjected to pressure and ascend like sap and stain the wood, comprises two or more drills and a driving-motor mounted on a carriage movable on a frame that is connected to a frame secured around the tree trunk. The trunk frame may consist of an open U-shaped frame closed by a detachable or hinged member b<4>. It is held in position by clamping-screws d bearing on the trunk a. The drill-carrying frame e is detachably and adjustably bolted to the member b<2> of the trunk frame, the rear end being carried by supports g. Two sets of parallel drills l<1> are connected to a carriage h movable along the frame e by a hand-wheel i' and rack-and-pinion gearing. An electric or other motor k is suspended from the carriage h and drives the drills through spur and worm gearing. After one frame e has been moved along the bar b<2> and one set of bores completed across the whole width of the tree, the frame is attached to the bar b<3> and the other set bored to intersect the first set at right-angles. In the modification shown in Fig. 7, the trunk frame is replaced by a hinged strap and a tightening-screw o having right and left hand threads, the strap resting on supports driven into the tree. A frame q carrying two drills r is fixed on projections p on the strap. By shifting the strap round the tree the drills are adjusted for boring substantially radial bores as shown. The apparatus shown in Fig. 2 may be used to make one set of bores and the apparatus shown in Fig. 7 for making bores at right-angles to them. The Specification as open to inspection under Sect. 91 (3) (a) states that there may be one drill only. This subject-matter does not appear in the Specification as accepted.
Patent GB-346787-A (GB)
Title: Improvements in apparatus for damping flongs or other articles
IPC: B41D1/00
Filed: 1930-01-17
Abstract: Apparatus for damping stereotype flongs or other articles comprises a closed chamber to receive the articles, means for circulating air through the chamber, and means for controlling the humidity of the air.  The chamber 10, Figs. 2 and 3, consists of sections 13, 14, 15 bolted together so that its capacity can be varied by omitting the section 14 or adding similar sections thereto.  Moist air is circulated through the chamber by a fan 21, Fig. 2, the air passing over the surface of water in a tank 17 heated by an adjustable gas or electric heater 18.  The walls of the chamber are lagged and the inside of the sloping top is provided with a removable lining 34 of felt or other absorbent material.  The flongs are supported in racks 11 comprising side frames connected by two series of rods 39, 40 to which are secured pairs of rods 41 bent to sinuous form to form compartments to receive one or more flongs.  The racks have wheels 43 to run on tracks 42 and are provided with handles 46 by which they can be drawn out of the chamber on to supports 44 for inserting and removing the flongs &c.  The supports are hinged to the tracks so that they may be turned up into the chamber when out of use or may be turned down to rest on the edge 45 <PICT:0346787/III/1> <PICT:0346787/III/2> of the door-opening when required to support the racks.
Patent GB-1354042-A (GB)
Title: Polarographic sensor and membrane therefor
IPC: G01N27/49
Filed: 1972-01-14
Abstract: 1354042 Electro-chemical analysis BECKMAN INSTRUMENTS Inc 14 Jan 1972 [22 Feb 1971] 1804/72 Heading G1N In an electro-chemical cell for determining the partial pressure of a gas e.g. oxygen in a sample medium a pair of electrodes and associated electrolyte are separated from the sample medium by a multi-layer permeable membrane the individual layers of which are held together so as to prevent the migration of electrolyte to the region between the layers and being trapped therebetween. The outer layer of the membrane which contacts the sample is of silicone rubber which is gas permeable but ion impermeable and the inner layer is of a material e. g. polyethylene, polypropylene or a polymer of a fluorinated alkane, less permeable to the gas and water vapour than the silicone rubber. The arrangement is such that the electrolyte does not evaporate away, response time is increased and flow sensitivity improved. Two constructions of cells are described, in one, Fig. 1 (not shown) two membranes are bonded together and held over the end of a noble metal cathode extending through an elongated insulating body around which is helically wound a silver anode, the electrolyte being KCl. Alternatively the cathode may be gold or silver and the anode zinc, cadmium or lead and the electrolyte KOH. In the second arrangement the two membranes are not bonded together but clamped over the end of the cathode, the outer membrane being of larger diameter than the inner membrane.
Patent GB-894763-A (GB)
Title: Improvements in or relating to wheels or castors
IPC: B60B33/00
Filed: 1961-01-17
Abstract: 894,763. Castors. MAS, J. C. Jan. 17, 1961 [Jan. 19, 1960], No. 1883/61. Class 52(1) A castor has a bell-shaped support 1 having fixed therein a spindle 2 with a groove 3 which is engaged by resilient pawls 6 of a cylinder 5 rotatable on the spindle 2, the bell 1 forming a protective cover to prevent obstruction by threads &c.
Patent GB-1155801-A (GB)
Title: Device For Indicating Shooting Results During Target Practice
Inventor: OHLUND JOHN ALEX INGVAR
IPC: F41J5/06
Filed: 1968-01-12
Abstract: 1,155,801. Target devices. SAAB A.B. 12 Jan., 1968 [12 Jan., 1967[, No. 1910/68. Heading F3X. A device for indicating shooting results during  target practice comprises a target 1 of substantially rigid, vibration transmitting material, a signal transmitter 7 attached to the target, a differentiating device 15 for differentiating a " hit " signal from the transmitter and indicating means 17, e.g. a computing apparatus or an electric writer, operable by a signal from the differentiating device. A pulse generating means 16 may be disposed between the differentiating device and the indicating means. The differentiating device comprises a D.C. amplifier 18 and the transmitter two piezo-electric discs 10, 11 having a spring-loaded, heavy mass 12 resting thereon.
Patent GB-122885-A (GB)
Title: Improvements in or relating to Electrical Switch Gear.
IPC: H02B1/00
Filed: 1918-02-04
Abstract: 122,885. Reyrolle & Co., A., Longman, R. M., and Clothier, H. W. Feb. 4, 1918. Oil switches; sliding switch-carriage arrangements. - In high-potential alternating-current switch-gear of the sliding-carriage type, the removable portion contains a switch forming part of the main switch-gear and controlling a reactance or other apparatus (such as a booster), and contacts on the fixed and movable parts serve as isolating contacts for the switch. In the construction shown in Fig. 1. the ends of the reactance K<2> mounted on the fixed part of the switch are connected to the subsidiary concentric contacts K, K<1>, which interengage with the contacts L, L<1> mounted on the sliding carriage and connected to fixed switch-contacts A, B in the oil container. The movable main switch contacts J, J<1> are connected to fixed switch contacts C, D, and a double sliding bridging member M, M' mounted on the sliding block N is adapted to bridge the inner and the outer contacts. The block N is raised by a lever O<1>, and the bridging member M<1> can be raised or lowered about the pivot M<2> by the lever O<2>. When all four contacts are bridged, the members M and M' being out of contact with one another, the circuit is completed through the reactance, but when the outer only are bridged, the members M and M<1> being in contact with one another, the reactance is out of circuit. In a modification, the two bridging bars are short-circuited bv a fuse which blows on fault and introduces the reactance. The inner hinged bridging member, which when in place connects the reactance in circuit, may be operated electro-magnetically on overload by a solenoid or by the interaction of the currents in the two bars M, M<1>. Where duplicate bus-bars are employed, a contact making bar M<7>, Fig. 8, which may be raised to engage the contact D, has a pivoted subsidiary bar M<8> at its end engaging one or other of the contacts A, B to cut out or cut in the reactance.
Patent GB-868048-A (GB)
Title: Improvements in or relating to soldering apparatus
IPC: B23K1/16
Filed: 1960-01-20
Abstract: 868,048. Soldering. WESTERN ELECTRIC CO. Inc. Jan. 20, 1960 [Feb. 10, 1959], No. 2026/60. Class 83 (4). Apparatus for soldering together the edges of an elongated tubular article when the latter is moved continuously past the apparatus comprises a pressure device for maintaining the edges adjacent one another whilst the solder is cooling and setting, the device including a member for pressing on the article and pivotally mounted with its pivotal axis substantially perpendicular to the direction of movement of the article and substantially tangential to the region of contact of the member and article. An apparatus for soldering the longitudinal seam 7 of the sheath 8 of a cable comprises a hair-pin shaped inductor 5 connected to a transformer 6 and held in spaced relation with the sheath by a resiliently-supported shoe 9. A pressure shoe 12 having a glass or tungsten carbide bearing-plate 19 and being cooled by and dispensing coolant from apertures 16 is secured to a yoke 24 having bearings 25, 26 in spherical races 27 in a second yoke 28 which is fixed to the lower end of a vertically-movable rod 30, adjustably spring- pressed downwardly. The pivotal axis of the shoe is perpendicular to the direction of movement of the sheath and tangential to the region of contact of the shoe with the sheath. The tilt of the shoe may be varied by adjustment up or down of the position of the part 39 of the yoke 28 and the lateral position of the shoe may be varied by a screw 42. The seam is formed by overlapped edges but a reference is made to butted edges. Specifications 682,433 and 787,166 are referred to.
Patent GB-344603-A (GB)
Title: Improvements in brushes and method of making the same
IPC: A46D3/05
Filed: 1930-01-21
Abstract: 344,603. Machines for fixing bristles in rotary brushes. ANGELL, A. A., 3628, Lincoln Avenue, Chicago, U.S.A. Jan. 21, 1930, No. 2123. Convention date, Jan. 31, 1929. [Class 19.] A method of making a brush comprises winding a helical coil on a brush core and feeding bristles directly between the turns of said coil, the bristles being formed into separate tufts and introduced in predetermined spaced relation between the turns of the coil. The brush comprises a cylindrical core or base 20, Fig. 1, on which tufts of bristles are spaced by a metal tufting strip 50 (which may be afterwards removed) and secured by a helically wound metal wire 25 and a binder material which hardens on drying. The tube 20 forming the core of the brush is secured in a chuck 22 and a collar 34 is secured on the tube adjacent the chuck. The core 20 extends through and is carried by a block 7 running on guides 8, Fig. 2, on the frame 5 of the machine. The block is pressed towards the bristles &c. by wires 10 and weights 15. The metal strip 50 with interspaces 52 passes the end of a bristle hopper 60 and carries tufts of bristles which are thereby spaced on the core 20. The bristles are fixed between coils 25 of iron wire which are drawn from a reel, not shown, round curved guides 40 in a block 44. The spacing strip 50 is similarly fed in another guide in the same block, the strip overlying the wire. Bristles are supplied from a hopper 60 where they are stacked on end and pressed forwards by a weight driven follower 68 into notches 52 in the spacing strip 50. Plastic material for the binder is pressure fed by a pipe 85, Fig. 2, to the bristles as they are laid on the core 20. The binder consists preferably of a phenol condensation product dissolved in alcohol. The binder strip 50 is secured at each end by screws 32 and the brush is ready for baking which occupies several hours at different temperatures for the best results although times and temperatures may be varied. After the brush is then treated, the strip 50 may be removed. The brush may be wound to a relatively great length and divided into desired lengths. Rubber cement might be used in place of the phenol condensation product. In a modification, Fig. 14, a single binding coil and tufting element with pockets 102 for tufts of bristles is used in place of the wire 25 and strip 50. Instead of a solid element as at 100, sheet material may be used. Specification 288,708, [Class 19, Brushing &c.], is referred to.
Patent GB-718127-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/06
Filed: 1952-01-25
Abstract: 718,127. Wind motors; axial-flow pumps and compressors. TERZI. P. Jan. 25, 1952 [Feb. 1, 1951], No. 2136/52. Classes 110(1) and 110(3) [Also in Group XXXIII] An axial-flow pump, compressor, or windmill rotor of the type in which the pitch of the blades is self regulating by the action of natural forces, has each blade rotatabty mounted within a bearing 11, 12 whose outer ring 10 is secured in a radial sleeve 3 on the propeller hub 1, adjusting means being provided for varying the axis O-A of the bearing with respect to the axis Z-Z of the sleeve and also for varying the angle # between the bearing axis OA and the blade axis R-R, and locking means being provided for locking the adjusting means in a desired position. The outer race 10 of a double taper-roller bearing has a spherical surface 18. engaging a corresponding surface 19 in the sleeve 3 and is secured in position by an annular screw 22 through an annular adjusting element 21 which has oblique end surfaces and engages an annular shoulder 20 on the outer race. Rotation of the element 21 in the sleeve adjusts the inclination of the bearing axis. The inner race 9 of the bearing is mounted on a spherical seating 8 secured to a socket 5 screwed on the blade root 4 and is secured in position thereon by an annular screw 27 through annular adjusting rings 23-26 each of which has oblique end surfaces. Relative rotation of the adjusting rings adjusts the inclination of the blade axis with respect to the bearing axis. The rotation of the blade about the bearing axis, which is effected by natural forces, is limited by adjustable stops such as 33 secured respectively to the bearing race 10 and the blade hub.
Patent GB-470853-A (GB)
Title: Improvements in illuminating devices
IPC: G09F13/26
Filed: 1936-01-23
Abstract: 470,853. Ceiling, wall, &c. lamps; advertising signs. CLAUDE-GENERAL NEON LIGHTS, Ltd., and HIGGINS, C. Jan. 23, 1936, No. 2150. [Class 75 (iv)] [Also in Group XV III] In an illuminated device of the kind comprising a casing having one or more flat surfaces illuminated by one or more linear light sources, the auxiliary electrical apparatus for supplying the light sources is housed in the casing and the light sources are located in a plane transverse to the said surfaces and passing through the edge or edges of the surfaces remote from the said supply apparatus. In the embodiment shown in the Figure, the surfaces 3 of the casing, which may bear advertising matter, are illuminated by discharge lamps 5, 6, 7 fed from supply apparatus 11.
Patent GB-188591-A (GB)
Title: Improved lubricating can
IPC: F16N3/08
Filed: 1922-02-28
Abstract: 188,591. Dawes, W. J. Feb. 28. 1922. Lubricating-cans.-In a force-feed lubricating- can comprising a cylinder 4 inside the can into which oil is drawn by a piston 5 through a non- return valve 9 and ejected through a spout 12 fitted with a check-valve 14, the check-valve is of conical form and is located at the junction of a tube 13 of small bore leading from the cylinder 4 and a chamber of larger bore leading to or forming part of the delivery spout 12. The piston 5 is a long metal cylinder, without packing, and is returned to the end of the cylinder 4. after eack working stroke, by a spring 11. Leakage past the piston rod 6 is prevented by a gland 7, and oil leaking past the piston is returned to the outer casing 1 through a hole 18. When the can is out of use the piston 5 can be locked in the "in" position by means of a U-shaped clip which en. gages over the head of the rod 6 and under the flange 7<a> of the gland.