baber/WOPTO huggingface dataset:
Patent GB-1286717-A (GB)
Title: Coated reflective surface and method of making same
Inventor: MOSIER BENJAMIN
IPC: C25D11/04
Filed: 1970-06-08
Abstract: 1286717 Coating reflective metal surfaces ESQUIRE Inc 8 June 1970 [9 June 1969] 27505/70 Heading B2E [Also in Divisions C7 F4 and G2] A metallic reflective surface, preferably an Al surface of a reflector in a lamp fixture for lighting football stadiums and shopping centres, is protected while increasing its specularity by coating it with a hydrophilic colloid whilst anodising the surface, and crosslinking or complexing the colloid preferably by dissolving a cross-linking or complexing agent in the anodising bath, e.g. in an amount from 0.001 to 10% by weight. Examples of such agents are K 2 Cr 2 O 7 , chrome alum (Cr K sulphate), amines and their salts, alcohols such as polyvinyl alcohol, boric acid, polyurea and other urethane precursors, dimethylol urea, hexamethylene-tetramine, aldehydes such as formaldehyde and gluteraldehyde, Al sulphate, Cr O 3 , glyoxal carboxylic acids and esters. The colloid is preferably a water-soluble or -dispersible polar hydrophilic material having functional groups selected from carboxyl, amino, hydroxyl and ether groups, and alkali metal complexes; e.g. natural or synthetic resin selected from water-soluble gums, alkali metal carageenins and alginates, gelatin, alkali metal salts of acrylic acid or acrylamide polymers, polyvinyl pyrollidone, ether, acetate or chloride, copolymers of vinyl acetate, methylcellulose, casein or starch or derivative thereof, cellulose acetate phthalate, or carboxypolymethylene. The colloid solvent may be water, alcohol, ketone or other polar solvent such as acetonitrile, formamide, dimethylacetamide or tetrahydrofuran. Prior to anodising and coating, e.g. to form an Al oxide-colloidate or -gelatinate, the surface may be cleaned in NaOHNaF solution, electro-brightened in fluoboric acid solution, and desmutted in H 3 PO 4 -CrO 3  solution. The anodising bath preferably contains 15% H 2 SO 4  with the colloid and agent. The coating may be hot-water sealed with water containing a wetting agent and with the pH maintained between 5.5 and 6.5 with H 2 SO 4  or NaOH; the sealing solution may contain KH 2 PO 4  and CrO 3 .
Patent GB-1581938-A (GB)
Title: Ejection piston
IPC: B65D83/00
Filed: 1977-07-01
Abstract: The piston (12) has an annular piston part (16), on the container side of which a convexly curved sealing plate (15) is secured by means of a bendable or foldable connecting part (17). When the piston is pressed into the container (11) in direction (20), the sealing plate (15) is deformed in such a way that its rim is pressed against the inner wall of the container (11). The seal between the inner wall and the piston is thereby improved. <IMAGE>
Patent GB-766005-A (GB)
Title: Electron discharge devices
IPC: H01J29/48
Filed: 1953-10-08
Abstract: 766,005. Cathode-ray tubes. PHILCO CORPORATION. Oct. 8, 1953 [Oct. 9, 1952], No. 27687/53. Class 39(1). In an electron gun of the kind where an apertured control electrode 136, Fig. 6, is closely spaced from the cathode emissive layer 130 and the aperture defines an effective emission arc a (radius r) from which alone electrons can enter the beam, the arc a is divided in a central portion (radius e) and a peripheral portion (radial depth d) of different curvatures, the peripheral portion being "less concave" than the central portion ; by this means the peripheral electrons, which with a flat cathode will form a cross-over before the central electrons, are given a radially outwardly component of velocity relative to the central elevations which causes their cross-over to recede into closer proximity to the central cross-over. In modifications, either the central portion or the peripheral portion may be flat, Figs. 4, 5 (not shown). Electrode 134 has its aperture bevelled at the top to improve the uniformity of the field adjacent the cathode. Twin control electrodes 74, 76, Fig. 2, each facing a separate so-curved emission area, are mounted in an electron gun which is generally of the same construction as is disclosed in Specification 762,550, except that an apertured beam-converging electrode 68 is interposed between the control electrodes and the end of the can 20. Numerical details of dimensions and spacing are given. The gun may be used in a colour-indexing system as in Specification 745,353.
Patent GB-1482185-A (GB)
Title: Determining and indicating the end of a cooling period of a hot body
IPC: G01J5/00
Filed: 1975-05-22
Abstract: 1482185 Determining when a body has cooled to a predetermined temperature BRITISH STEEL CORP 22 May 1975 [21 June 1974] 27703/74 Heading G 1A In a device for determining the instant(s) when a hot body, e.g. a steel workpiece from a mill, has cooled to one or more predetermined temperatures, radiation from the body is received by a scanning pyrometer 14. The pyrometer output passes via a linearizer and a signal "peak picker" 38 to a decay unit 39 which decreases the detected peak valve according to a decay rate selected to correspond to the body being observed. The output of the decay unit supplies a meter 32 and a comparator 41 that also receives a signal representing a predetermined temperature T 1 , from a thumb switch 33 and a D/A converter 43. Comparator 41 gives an output when the temperature of the body is greater than T 1 . A further comparator 42 and its associated system 34 gives an output when the temperature is less than a second predetermined termprature T 2 . The output of the comparators 41, 42 supply a NOR gate 48 via amplifiers 45, 46. The signal from the gate 48 operates a lamp 35 when the body cools below the first temperature T 1  and a lamp 36 is lit when the body cools below the further temperature T 2 . The signal processing unit 30 is such that after the initial peak has been sensed, subsequent lower peaks are ignored, but should a higher peak be detected then the original decaying signal will be superceded by a new decaying signal that decays from the "higher peak". The pyrometer may be mounted to swing like a pendulum Fig. 2, (not shown). The swinging is induced by a pneumatic piston and cylinder arrangement attached to a rod supporting the pyrometer.
Patent GB-828423-A (GB)
Title: A process for the preparation of concentrated aceto-acetamide solutions
Filed: 1958-08-28
Abstract: Aqueous acetoacetamide solutions of strength more than 40% are obtained by introducing diketene and either ammonia and water, aqueous ammonia, or aqueous ammonia and gaseous ammonia, into an aqueous acetoacetamide solution of strength more than 35% at 20-60 DEG  C., and removing the heat of reaction, e.g. by cooling in a heat-exchanger.
Patent GB-388469-A (GB)
Title: Improvements in milking machines
IPC: A01J5/04
Filed: 1931-10-06
Abstract: 388,469. Cow-milkers. GORDON, G. S., Great South Road, Takanini, Auckland, New Zealand. Oct. 6, 1931, No. 27754. Convention date, Jan. 15. [Claas 84.] A combined pulsator and releaser comprises a single chamber 7, Fig. 3, interposed between the source of vacuum and the teat cups and provided with a valve seat 15 having ports 16, 17, 18 therein, which ports are controlled by a reciprocatable slide valve 22 provided with an atmospheric port 26, and nipples 24, 25 connected respectively to the source of vacuum and to the inner chambers of the teat cups. The port 16 extends from the face to the side of the valve seating where it is provided with a nipple 23 connected to the outer chambers of the teat cups. The chamber 7 is provided at the bottom with a curved discharge neck fitted with a clack valve, and is closed at the top by a rubber stopper 11 to which is attached a baffle 12 to prevent milk from surging upwards in the chamber. The valve 22 is reciprocated from a rotary shaft through an eccentric and a connecting-rod 28 adjustably connected to a boss 27A pivoted to lugs 27 on the valve. In operation, when the valve 22 is at the top of its stroke, the nipple 24 registers with the port 16 and the port 26 registers with the port 17. Vacuum is thus transmitted to the outer chambers of the teat cups, and air is admitted to the chamber 7, any milk in which is discharged through the clack vavle. At this time, the nipple 25 is cut off from the chamber 7, but vacuum from a previous cycle is retained in the inner chambers of the teat cups. When the valve 22 moves downward to the position shown in Fig. 7, the port 16 is cut off from the nipple 24 but vacuum is still maintained in the outer chambers of the teat cups since the port 16 is covered by the valve, the chamber 7 is still under atmospheric pressure, and the nipple 25 is commencing to register with the port 18. Air and vapour therefore pass from the chamber 7 to the inner chambers of the teat cups, breaking down the vacuum therein and imparting a soothing effect to the teats. When the valve reaches the bottom of its stroke as shown in Fig. 3, the port 16 is uncovered and air is admitted to the outer chambers of the teat cups, the nipple 24 registers with the port 17 and the chamber 7 is thus placed under vacuum, the nipple 25 and port 18 register, and milk is drawn therethrough into the chamber 7. When the valve reaches the position shown in Fig. 7 on its upward stroke, the outer chambers of the teat cups are still under atmospheric pressure and a vacuum is still maintained in the chamber 7 and in the inner chambers of the teat cups. When however the valve reaches the top of its stroke, the nipple 25 is cut off from the chamber 7 but a partial vacuum is still maintained in the inner chambers of the teat cups, the nipple 24 registers with the port 16 and vacuum is transmitted to the outer chambers of the teat cups, and the port 26 registers with the port 17 thus placing the chamber 7 under atmospheric pressure, whereupon the clack valve opens and the milk is discharged.
Patent GB-1106013-A (GB)
Title: Light reflector and method of making same
IPC: G02B5/124
Filed: 1965-06-30
Abstract: 1,106,013. Reflecting signs. ELASTIC STOP NUT CORPORATION OF AMERICA. 30 June, 1965 [30 June, 1964; 23 June, 1965], No. 27801/65. Heading G5C. The surface of a reflecting sign consists of a plurality of contiguous cube corner units 22, each unit consisting of four differently oriented cube corner reflecting elements 40, 42, 44, and 46. Each element, e.g. element 40, is provided with three faces 48, 50, 52 inclined downwardly from a common apex 54 at right angles to each other, the intersection of two faces extending to one corner 57 of the square boundary of the element while the other faces intersect along lines which extend to points 60, 62 at predetermined distances from the comers. Each element is identical in formation but each is oriented at 90 degrees with respect to the adjacent element. A complete reflector bounded by circumference 39 (Fig. 1) and moulded of plastics consists of units 22 in its central portion and units 32, 34, 36, 38 in its marginal regions. These marginal units also consist of four trihedron elements but the intersecting lines of the faces of these elements all extend to points at predetermined distances from the comers of the square boundaries of the elements. The reflector is made by grinding cube corner faces 132, 134, 136 on the ends of pins 124, 126, 128, 130 (Fig. 4) which are of square crosssection, assembling four such pins oriented at 90 degrees to an adjacent pin to form a unit, assembling a plurality of such units in a holder, making a mould from the cube corner faces of the pins, and therefrom moulding a reflector with the required surface formation.
Patent GB-903703-A (GB)
Title: New phthalocyanine dyes containing halo-methyl groups
IPC: F24H1/50
Filed: 1960-08-12
Abstract: The invention comprises phthalocyanine dyes of the formula:- <FORM:0903703/IV (b)/1> where Pc is the radical of copper, nickel or iron phthalocyanine or of a copper phthalocyanine having 1 to 4 chlorine atoms or 1 to 4 phenyl radicals in the molecule, A is a covalent linkage, methylene, the group:  <FORM:0903703/IV (b)/2> or the group: -SO2NH-R- where R is phenylene or a radical:- <FORM:0903703/IV (b)/3> or <FORM:0903703/IV (b)/4> D is a -CO- or -SO2- group, X is chlorine or bromine, m is a whole number from 0 to 7, n is a whole number from 1 to 4 and (n + m) is not greater than 8. The dyes are made by reacting one mol of a derivative of the formula:-  <FORM:0903703/IV (b)/5> or  <FORM:0903703/IV (b)/6> or <FORM:0903703/IV (b)/7> or <FORM:0903703/IV (b)/8> or <FORM:0903703/IV (b)/9> with n mols of an acid halide of the formula:-  <FORM:0903703/IV (b)/100> or by reacting 1 mol of an acid chloride of the formula:-  <FORM:0903703/IV (b)/111> with n mols of an amine of the formula:-  <FORM:0903703/IV (b)/122> the unreacted sulphochloride groups being converted by hydrolysis into sulphonic acid groups, wherein Pc, D, X, n and m are as above and Z is hydrogen or sulphonic acid.  Examples are given.  The dyes dye and print textile materials of wool, silk, synthetic linear polyamides and of natural or regenerated cellulose.  Green to blue shades are obtained. Specification 827,568 is referred to.
Patent GB-707814-A (GB)
Title: Improvements in or relating to thrust-transmitting mechanisms applicable e.g. to variable pitch propellers
Inventor: GODDEN THOMAS EDWARD
IPC: B64C11/30
Filed: 1950-11-15
Abstract: 707,814. Fluid-pressure servomotor-control systems. ROTOL, Ltd. Oct. 31, 1951 [Nov. 15, 1950], No. 27987/50. Class 135. [Also in Group XXXIII] A thrust-transmitting mechanism comprises a piston and rod assembly and a co-acting cylinder with closed ends, the piston and rod assembly being axially displaceable with consequent movement of the cylinder in the same direction, the assembly and cylinder being arranged for rotation relatively to one another, and valve means actuated on axial movement of the assembly relatively to the cylinder to admit pressure fluid to the end of the cylinder which is reduced in volume by such movement to build up a pressure therein such that the thrust transmitted to the cylinder equals the thrust producing the movement of the assembly. As shown, the mechanism 19, Fig. 1, is incorporated in a variable-pitch, contra-rotating airscrew assembly comprising front blades 7 and rear blades 8. The pitch of blades 7 is adjusted through links 12 by a piston 11 supplied with oil under pressure through passages 14, 15 in the propeller shaft. The thrust of the piston is transmitted by rods 18 to the piston 22 of the mechanism and thence by the cylinder 24 to links 20 of the blades 8. Passages in the rods 18 connect the chambers 16, 17 on opposite sides of piston 11 with passages 28, 32, respectively in piston 22 leading to chambers 30, 34 on opposite sides of piston 22. Passages 28, 32, are controlled by piston valves 25, 26 respectively, slidable in the piston and abutting the end walls of the cylinder. Running clearances between the piston and the cylinder, due to the opposite rotations thereof permit a leak between chambers 30 and 34 and also from the chambers to the low pressure side of the oil source, e.g. via chambers 62 and ducts 63, 64. Thus, movement of piston 11, e.g. to the right due to oil supplied to chamber 16, causes movement of piston 22 to the right to decrease the volume of chamber 30 and opening of passage 28 to connect chambers 16 and 30, whereby the cylinder follows the piston until the piston stops. In another arrangement, a single piston valve may be used, and in yet another arrangement, passages 55, 56, Fig. 4, from chambers 17, 16 respectively terminate in annular grooves 53, 54 in the piston and co-act with grooves 57, 58 in the cylinder. Thus the piston acts as the control valve for chambers 30, 34.
Patent GB-503853-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R23/00
Filed: 1937-10-14
Abstract: 503,853. Optical microphones. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS, G. B. Oct. 14, 1937, No. 27996. [Class 40 (iii)] A microphone, i.e. a device for translating sound into electrical variations, comprises an electron discharge device 8, a source of light 5, a reflecting surface 3, means responsive to incident sound for moving said reflecting surface, a second reflecting surface 4, and means for projecting light from said source to said electron discharge device after a plurality of reflections between said reflecting surfaces 3, 4, a plurality of times from the acoustically moved surface 3 before reaching the cathode 7, so that an inertia-free "optical-lever" effect is obtained, a small movement of the said surface 3 producing a large change in the light incident upon the cathode. In the form shown in Fig. 1, the reflecting surface 3 is a sound vibrated diaphragm opposite an opening 2 in a box 1, the light source 5 is slit-like and associated with a lens system 6, and the reflected light is focused on the edge of a slit-like outlet 4b on its way to the cathode 7. In a modification, there is a grating in the path of the light from the source to the reflecting surface 3 and a second grating between this surface and the cathode.
Patent GB-206838-A (GB)
Title: Improved means for eliminating disturbing electrical oscillations
IPC: H04B1/12
Filed: 1923-11-07
Abstract: 206,838. Ges. f³r Drahtlose Telegraphie. Nov. 8, 1922, [Convention date]. Undesired signals, eliminating; thermionic amplifiers and detectors.--Relates to the method of freeing two coupled oscillatory circuits from undesired signals by means of a third circuit which is highly damped and is coupled to each of the other. The invention consists in utilizing a reactionless output coupling through a thermionic valve, so as to avoid any retroaction between the resonant parts of the system. The antenna R is coupled to the secondary circuit S and to the de-coupling circuit H, both of which are in turn coupled to the input circuit V of the highfrequency amplifying-set through an aperiodic valve R, whereby the effective de-coupling takes place in the grid circuit of that valve and not in the high-frequency amplifier circuit. The plate circuit of the valve R may include an oscillatory circuit tuned to the frequency of the desired signal. Similar coupling valves may connect the circuits S and H to the antenna A. In a modified arrangement the valve R is replaced by two valves symmetrically arranged in opposition.
Patent GB-405228-A (GB)
Title: Improvements in moulds for bonbons and the like
IPC: A23G3/02
Filed: 1933-10-11
Abstract: 405,228. Moulds for confectionery. REICHE AKT.-GES., A., 1, Bamberger Strasse, and REICHE, A., 22, Bergstrasse, both in Dresden, Germany. Oct. 11, 1933, No. 28095. [Class 87 (ii).] Multiple moulds for filled chocolates, bonbons and the like are formed by inserting the individual moulds or cups into the holes of a perforated support, fixing them in position and then machining and polishing the surface of the support to obtain a true level surface. Thus the cups b, Fig. 2, are inserted into the holed plate a, fixed lightly by solder and then permanently by a coating of tin c flooded on to the underside of the plate. All irregularities at the rims of the cups are removed during the machining and polishing. In some cases the cups are fixed by soldering only while in other cases the plate a is cast round the cups previously assembled in a mould.
Patent GB-339970-A (GB)
Title: Improvements in earth conductor suspensions
IPC: H02G7/05
Filed: 1929-09-16
Abstract: 339,970. Hofmann, J. W. Sept. 16, 1929. Clips and holders for cables and conductors.-A clamp for supporting the earth conductor of an overhead transmission line is constructed to permit the free passage of oscillations between adjacent spans of the conductor. In the construction shown, an earth wire e is carried at the top of a mast a by a device which comprises a clamping trough c pivotally mounted in a bracket b, the earth conductor being clamped in the trough c by plates f. The trough c is formed with opposed studs d which are adapted to swivel in U-shaped recesses formed in the bracket b as shown in Fig. 3. The axis AA of the studs d is transverse to, and intersects the longitudinal axis of the earth conductor e. In order to prevent disengagement of the trough c from the bracket b, pins g are inserted in the U-shaped recesses, as shown. At suspension points where the earth conductor is inclined upwards on both sides of the clamp, as shown in Fig. 2, the trough c may be inverted. Bushes h, Fig. 3, of wearresisting material may be fitted over the studs d, the edges of which may be turned over to prevent lateral displacement of the bushes.
Patent GB-441302-A (GB)
Title: Improvements in coincidence rangefinders
IPC: G03B13/20
Filed: 1934-10-02
Abstract: 441,302. Range- and view-finders for cameras. REASON, R. E., and KAPELLA, Ltd., 104, Stoughton Street, Leicester. Oct. 2, 1934, No. 28170. [Classes 97 (i) and 98 (i)] A coincidence rangefinder adapted for use as a camera view and range finder comprises two objectives and a single eye - piece which are such that each of the fields of the two entrant beams includes at least 30‹ and the total magnification of each sight exceeds one-third and is preferably unity. The objectives J, K which may be Ramsden eyepieces or modifications thereof, may be mounted on the camera casing P which carries the camera lens Q. The two entrant beams are reflected from mirrors A and B respectively and after passing through erectors L, L1 enter the eye-piece H, which is similar to the objectives J, K, by the mixing reflector D which may be attached to the film gate T, both being carried on a screw U so that by adjusting the knob V until the images are coincident the camera is focused. The magnification throughout is substantially unity. The boundaries of the field may be limited by a stop in the focal plane of one of the eyepiece units.
Patent GB-892806-A (GB)
Title: Improvements in or relating to window pivots
IPC: B60J1/14
Filed: 1960-08-16
Abstract: 892,806. Hinges and pivots. PORSCHE, F. A. E. Aug. 16, 1960 [Aug. 27, 1959], No. 28332/60. Class 65(2). A vehicle quarterlight 2 is attached to a pivot pin 5 which is held .against the bearing plate 3 by the spring 4, the plate and spring acting as the bearings for the pivot pin. The edges 6, 7, 8, 9 of the plate 3 are turned in to make it dish-shaped, the part 6 being used to fix the hinge to the vehicle door, the part 7 supporting the pin 5 against axial movement and the parts 8, 9 having slots 15, 16 to retain the spring 4. The plate 3 has two indentations 17, 18 to form a seating for the pivot pin 5.
Patent GB-1499760-A (GB)
Title: Alkyl amino-glucopyranosides
IPC: A61K31/7028
Filed: 1975-07-04
Abstract: 1499760 Nitrosoureidoglucopyran osides TOKYO TANABE CO Ltd 4 July 1975 [5 July 1974] 28342/75 Heading C2C Novel compounds of Formula I wherein R 2  is C 1-4  alkyl and R 1  and R 3  are each a hydroxy group or an N-carbamyl-N<SP>1</SP>- (2-chloroethyl)-N<SP>1</SP>-nitrosoamino group provided that both are not hydroxy are prepared by nitrosating a compound of Formula II wherein R 6  and R 7  are N-carbamyl-N<SP>1</SP>-2- chloroethyl-amino groups or hydroxy provided that both are not hydroxy. Intermediates of Formula II above are prepared by condensing a compound of Formula III  wherein R 4  and R 5  are amino or hydroxy provided at least one is amino, with 2-chloroethylisocyanate. Pharmaceutical compositions in conventional forms for oral or parenteral administration having anti-tumor activity comprise an above novel compound and a carrier or diluent.
Patent GB-474495-A (GB)
Title: Improvements in detonators for mining cartridges
IPC: F42B3/28
Filed: 1936-10-19
Abstract: 474,495. Blasting - cartridges. LIGNOZA SPOLKA AKCYJNA. Oct. 19, 1936, No. 28379. Convention date, Nov. 14, 1935. [Class 9 (i)] Detonator caps for use with lead azide charges, with or without other compounds such as lead trinitroresorcinate, are formed wholly of lead. The Figure shows a modification for use with mercuric fulminate, in which a thin liner 2 of brass or copper is fitted in a lead cap 1. The use of lead caps enables zinc to be used for the castings owing to the stated immunity from electrolytic action between these metals.