baber/WOPTO huggingface dataset:
Patent GB-1098575-A (GB)
Title: Apparatus for use in studying the surface of a specimen
Inventor: MARSH DAVID MALCOLM
IPC: G02B21/26
Filed: 1965-07-07
Abstract: 1,098,575. Retractive switches. T.I. (GROUP SERVICES) Ltd. July 4, 1966 [July 7, 1965], No. 28731/65. Heading H2B. [Also in Divisions F2 and G1] In photo-electric apparatus for scanning the surface of a specimen, (see Division G1) a limit switch is provided for reversing the co-ordinate motors driving a specimen table when a limit of the scanned area is reached. The switch comprises a rod 56 carrying a cylindrical member 57 which is contacted by the specimen table 48 at the limits of the scanned area. The rod is normally biased against the edges of square holes in contact plates 60, 61, 62, 63 by a spring located in a bore 69, but as soon as the table 48 bears against the member 57 the rod breaks contact with one of plates 60-63 depending upon the direction in which the table 48 approaches member 57. A number of tables may be provided with different shaped recesses 55 so that different areas may be scanned.
Patent GB-1468687-A (GB)
Title: Cinematographic cameras
IPC: G03B31/02
Filed: 1974-06-28
Abstract: 1468687 Sound recording on cirie film AGFA-GEVAERT AG 28 June 1974 [28 June 1973] 28790/74 Heading G5R A cine camera 1 for film 3 having a sound track includes a circuit 10, 12, 13, 14 which at the beginning of a take initiated by closure of a switch 15 delays effective operation of the recording head 14 for a period long enough to allow the film 3 to reach normal running speed. The delay is sufficient for a point P on the film adjacent the head 4 at the start of the take to pass the picture gate 2.
Patent GB-151855-A (GB)
Title: Improvements in or relating to delivery connections for pumps for inflating pneumatic tyres
IPC: B60C29/06
Filed: 1919-11-20
Abstract: 151,855. Charles, A. Nov. 20, 1919. Junction pieces; with valves.-A flexible connexion for pumps for inflating pneumatic tyres is provided at that end which is connected to the pump, with a non-return valve within a twopart fitting. The two-part fitting comprises an externally screw-threaded tube a provided with an enlargement a' intermediate of its ends, one of which b is adapted to be connected to the pump and the other of which b<1> serves as the seat of the non-return valve e. A union c is screwed on the end b<1> and is formed with a reduced tubular extension c<1> for the attachment of the flexible connexion d. The valve e is provided with a guide stem e<1> which lies within the bore a<2> of the member a. A pin f is disposed across the bore c<2> of the spigot end of the union c, to prevent the valve from closing the bore c<2>.
Patent GB-174143-A (GB)
Title: An improved process and apparatus for the extraction of sulphur
IPC: C01B17/033
Filed: 1920-10-12
Abstract: 174,143. Johnson, J. Y., (Badische Anilin- & Soda-Fabrik). Oct. 12, 1920. Sulphur is extracted from charcoal which has been employed as a contact mass for removing sulphuretted hydrogen from gases by oxidation with air, by means of ammonium sulphide solution. The solution is boiled in a still 1, the vapours pass to a condenser 2, and the condensed ammonium sulphide runs through the vessel 3 which contains the spent charcoal; the solution saturated with sulphur flows back to the still in which sulphur accumulates. On continuing the distillation the condensate eventually becomes practically free from ammonium sulphide and serves for finally washing the charcoal, after which it is diverted into a receiver 4. The precipitation of the sulphur in the still 1 may be facilitated by adding an electrolyte, for example salt. The parts of the apparatus which are exposed to the ammonium sulphide solution are preferably made of or coated with aluminium or its alloys. Specifications 13383/11 and 1415/14 are referred to. The Provisional Specification refers to the extraction of sulphur from exhausted gas-purification masses in general.
Patent GB-1301038-A (GB)
Title: Heat-sensitive sheet material
IPC: G03F1/92
Filed: 1970-06-15
Abstract: 1301038 Thermographic materials MINNESOTA MINING & MFG CO 15 June 1970 [16 June 1969] 28944/70 Heading G2C A thermographic material contains a first layer which contains a binder of a vinyl chloride polymer or copolymer and a colour former which reacts with an organic acid on heating to produce a dye and a second layer which contains 40-94% by weight of nitrocellulose, 5-50% by weight of a plasticizer for nitrocellulose and 1-25% by weight of the organic acid reactive with the colour former. The two layers may be self-supporting or coated on a support e.g. a polyester support. Specified colour formers are N-{bis-(4-dimethylaminophenyl)methyl}pyrrolidone and N-(bis-p-dialkylaminoaryl)methanes. Specified organic acids are salicylic, 5-chloro- or 5-bromo-salicylic, gallic, citric, benzoic, p-aminobenzoic and 2, 4- chloromaleic. Specified plasticizers are polyvinylbutyral, camphor and polyalkylene glycols.
Patent GB-728660-A (GB)
Title: Process for the preparation of amines of the naphthostyril series
Filed: 1951-12-11
Abstract: The invention comprises a process for the preparation of amines of the naphthostyril series characterized in that hydroxy compounds of the general formula <FORM:0728660/IV (b)/1> where Y1 denotes C.OH and Y2 denotes CH or conversely are warmed with amines of the general formula HN.R1R2 where R1 and R2 both denote hydrogen, or R1 and R2 both denote an alkyl group, or R1 denotes hydrogen and R2 denotes an alkyl group or R1 and R2 together denote <FORM:0728660/IV (b)/2> together with their respective neutral sulphurous acid (H2SO3) salts (the term "alkyl" being used to denote methyl, ethyl, propyl or butyl).  It also comprises compounds of the formul  <FORM:0728660/IV (b)/3> and <FORM:0728660/IV (b)/4> where Y denotes NHCH3 or <FORM:0728660/IV (b)/5> X denotes NH2 and R3 denotes H or CH3. During the course of the reaction the hydroxy group on the ring C is replaced by the corresponding amino group, and the NH group in ring B can also be replaced by NR, where R denotes an alkyl group. In examples (1) 4-amino-naphthostyril is prepared by heating 4-hydroxy-naphthostyrie under pressure with ammonia and ammonium sulphite solution; (2) 5-amino-naphostyril and (3) 4-piperidino-naphthostyril are prepared similarly; (4) 1-methyl-4-methylamino-naphthostyril is obtained by heating 4-hydroxynaphthostyril with methylamine and methyl ammonium sulphite. Acetyl derivatives of the products of example 1, 2 and 4 are prepared.
Patent GB-633585-A (GB)
Title: Apparatus for mounting the hubs of wheels in the frames of bicycles, motor cycles and the like
IPC: B62K25/02
Filed: 1947-10-31
Abstract: 633,585. Detachable wheel mountings for cycles &c. FABRIS, G. Oct. 31, 1947, No. 29129. Convention date, Nov. 6, 1946. [Classes 136 (ii) and 136 (iii)] In apparatus for mounting the hubs of wheels to the frame forks of bicycles, motor cycles and the like a member is provided one at each end of the hub 10 comprising a semi-circular shell 1 brazed or welded to the frame tubes at the points normally provided on the fork ends for receiving the hub, a second shell 3 of corresponding semi-circular shape being pivotally mounted on the first and locking means to secure the two half-shells together in order each to completely envelope one end of the wheel hub mechanism. The locking means is constituted by a hollow lever 5. pivotally mounted on a lug 3b on the shell 3 at 4 and containing a tension spring 6 and a piston 18 through which passes a shackle 7 engageable in a hooked lug 9 on the fixed shell 1. The wheel hub 10 is provided at each extremity with a ball race 13, the inner race 12 of each of which is pressed on the hub and the external races 14 being totally enclosed by the two half-shells when in the closed position. If, as shown in Figs. 4 and 5, the standard type hub is used the two half-shells 1<SP>1</SP> and 31 are provided with a groove 15 of conical section which in the closed position engages a correspondingly shaped peripheral portion 16a on a disc 16 provided with a bore 17 for the reception of the extremities of the wheel hub. The bore 17 may be arranged eccentrically to permit variation in the chain tension by angular displacement of the disc.
Patent GB-226015-A (GB)
Title: Improvements in talking machines
IPC: G11B17/022
Filed: 1923-11-19
Abstract: 226,015. Marks, E. C. B., (Weiss & Co., J.). Nov. 19, 1923. Turntables.-A collapsable turntable comprises a number of arms or bars Z pivoted to a central disc b<1> in such a way as to permit of movement of the arms in a common plane when they are being folded together or opened out. One of the arms may be fixed to the disc, and stop pins f<1> may be provided on the disc for limiting the movement of the two other arms to equidistant positions. Specification 195,801 is referred to.
Patent GB-304302-A (GB)
Title: Improvements in ingot moulds
IPC: B22D7/06
Filed: 1928-10-11
Abstract: 304,302. Blage, M., and Soc. Anon. des Forges de Vireaux-Molhain. Jan. 20, 1928, [Convention date]. Moulds for casting ingots have the walls reduced in thickness where greater cooling is required. This is effected by forming the walls concave as at 3, the wall being thinnest on the plane C-D at the intersection with the vertical centre line of each face. Reversely curved strengthening ribs may be added as at 4.
Patent GB-451470-A (GB)
Title: Improvements in and relating to valves
IPC: F01L1/32
Filed: 1935-10-23
Abstract: 451,470. Valve spindles. ARTICULATING VALVE CORPORATION, 512, 5th Avenue, New York, U.S.A. Oct. 23, 1935, No. 29238. Convention date, Dec. 31, 1934. [Class 135] [See also Group XXVII] For even distribution of wear and heating in poppet valves moved in one direction by a spring, the valve stem is made in two portions connected so as to reciprocate together while being relatively rotatable, and the spring is adapted during the movement of the valve to impart a rotation to the valve head. The upper part 14 carrying the valve head is reduced in diameter at 15 so as to fit a bore 16 in the lower part 18, an enlarged portion 19 on the part 18 being pressed inwardly so as to enter grooves 17 in the part 14 in a manner which allows the relative rotation. The enlargement 19 is then machined to conform to the remainder of the part 18. The valve spring acts on a collar fitting in a groove 22. A passage 21 may be provided to lead oil to the joint. The valve may be ground on its seating without removing the valve spring. In a modification, the ends of both parts of the stem are grooved and united by a divided sleeve encircling them.
Patent GB-1382497-A (GB)
Title: Skylight assembly
IPC: E05B47/04
Filed: 1972-06-22
Abstract: 1382497 Latch fastenings; window opening devices P E E J BOGAERT 22 June 1972 [30 June 1971] 29390/72 Headings E2A and E2M A skylight assembly includes two frames 2, 3 and a latch mechanism which serves to hold the frames together against biassing means which act to tend to move one of the frames to an open position, the latch mechanism including at least one pivotable latch 8 on one of the frames and which is biassed under tension to holdingly engage an abutment 7 on the other frame to hold the frames together, which latch can be released to permit the skylight assembly to open. As shown, two latches 8, 8' are provided and a tension spring 9 is secured to the latch 8 and a floating pulley 11, a cable 10 passing around the pulley being secured to the latch 8' and to a pivotable lever 12 held in a skylight "closed" position by an electromagnet 14; when the latter is de-energised the tension in the spring and cable is released to permit the biassing means to open the skylight. The frame 3 is pivoted to a fixed frame 1 and is openable to a limited extent by an electric motor 4 the shaft 4' of which is screwed at the point of its passage through a member 5 so that rotation of the shaft causes the frame 3 to pivot towards or away from the frame 1. To provide for automatic separation of the frames 2, 3 a fusible element is located in the tensioning assembly for the latches.
Patent GB-892263-A (GB)
Title: Alkanolamine salts of salicyl anilides
IPC: A01N37/40
Filed: 1960-08-25
Abstract: The invention comprises alkanolamine salts of salicylanilides of the formula <FORM:0892263/IV (b)/1> where R1 is hydrogen or aliphatic acyl, R2 and p  R3 are nitro, chlorine or bromine, at least one being halogen, and R4 is hydrogen, halogen, C1-5 alkyl or nitro, at least one R4 being nitro; and their preparation by reacting the salicylanilide with one or more alkanolamines; a solvent may be used, and heat may be applied.  These salts are used for combatting gastropods (see Group VI).  Specification 824,345 is referred to.ALSO:Compositions for combating water snails are prepared by the reaction of an alkanolamine with a compound of formula <FORM:0892263/VI/1> in one or more organic solvents, such as dimethylformamide and/or dimethyl sulphoxide.  In the above formula R1 is hydrogen or aliphatic acyl; R2 and R3 are nitro, chlorine or bromine, at least one being halogen; and R4 is hydrogen, halogen, C1-5 alkyl or nitro, at least one R4 being nitro.  It is stated generally that alkanolamine salts of the above compounds are pesticides, particularly for combating snails and slugs. Specification 824,345 is referred to.
Patent GB-839030-A (GB)
Title: Weather covers for heat exchange apparatus
Inventor: WINTERS GODFREY
IPC: F28F19/00
Filed: 1957-09-19
Abstract: 839,030. Heat exchangers. WELLINGTON TUBE WORKS Ltd. Sept. 3,1958 [Sept. 19,. 1957], No. 29495/57. Class 64(3) A protective weather cover for a heat exchanger comprises at least two rows of louvres c, each louvre having a gutter a at its lower edge and the louvres in one row being inclined in the opposite direction to those in an adjacent row. The coveris intended for use with a heat exchanger in which a fluid flowing through tubes a: is cooled by air flowing over these tubes. The arrangement is such that rain falling on the louvres is caught thereby and carried away by the gutters e.g. to a drain e.
Patent GB-298649-A (GB)
IPC: C10J3/34
Filed: 1928-10-12
Abstract: 298,649. Motorenfabrik Deutz Akt.- Ges. Oct. 13, 1927, Convention date]. Producers.-In a water-jacketed gas producer the water jacket is extended down to a bearer ring c which is supported on feet f, the outer wall g being mounted by a flange connection l on a bottom member e so that the outer wall may be stripped off, after undoing the flange connection, for cleaning the boiler. A cock serves for removal of the sludge. A revolving grate h is provided.
Patent GB-230527-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/08
Filed: 1924-08-18
Abstract: 230,527. Tucker, J. B. Aug. 18, 1924. Bases; sparking-preventing.-The base b of a tumbler switch has a cavity c forming parallel walls c' with which a web d forms narrow slots d' of a depth equal or substantially equal to the depth of the cavity, through which the limbs of the contact arm pass. The arrangement prevents arcing and assists cooling.
Patent GB-337540-A (GB)
Title: Improvements in methods and apparatus for the manufacture of straight tubes made of a fusible material adapted to be drawn out, in particular to those for the manufacture of straight glass tubes
IPC: C03B17/04
Filed: 1929-09-30
Abstract: 337,540. Favre, P. A. Oct. 1, 1928, [Convention date]. Forming glass tubes or rods.-Relates to a method of forming glass tubes or rods, described in Specification 300,646, in which cylindrical glass blanks are threaded on a mandrel having an enlarged lower end, and the blanks are heated until the glass melts and flows over the enlargement and is drawn away as a tube. According to the invention, the glass blanks 1 are fed into a tubular member 81 which terminates at the lower end in a conical portion 82 that supports the blanks. The lower end of the tube is enclosed in a furnace 18, or it may be heated by gas burners, and the glass melts and flows through a, central aperture in the part 82. The blanks may be threaded on a tubular mandrel 2' through which air may be blown to preserve the bore of the tube, and this mandrel may terminate in a conical enlargement on which the blocks rest, as described in Specification 319,361. The lower end of the member 81 may be perforated to allow the hot gases to act directly on the glass.
Patent GB-1515113-A (GB)
Title: Wheel rim assemblies
IPC: B60C17/04
Filed: 1974-07-04
Abstract: 1515113 Vehicle wheels DUNLOP Ltd 25 June 1975 [4 July 1974] 29624/74 Addition to 1439331 Heading B7C A rigid annular member 15, e.g. of steel, secured between the two annular posts 1, 5 of a divided rim, supports the tread portion of a tyre mounted on the rim when the tyre is deflated. As described, the annular rim part 5 is spot welded to the wheel disc 30 and the latter has a substantially octagonal periphery which together with the radially inner edge of the member 15 and flanges 3, 12 define a chamber 45 within which a sealing ring 29 is located. Lubricant may be located in the tyre/rim cavity to reduce friction between the tyre and member 15.
Patent GB-622243-A (GB)
Title: Improvements relating to compositions for surfacing walls, ceilings and the like
IPC: C04B14/20
Filed: 1946-10-04
Abstract: A composition suitable for application to a surface by spraying comprises a mixture of from 5 to 8 volumes (dry) of exfoliated vermiculite and from 1.2 to 3 volumes of lime, chalk, whiting, china clay, lithopone or barytes, or a combination of two or more of them, a preferred material being the lime residue obtained in the manufacture of acetylene.  Preferably from 1 to 3.5 volumes of cement, preferably Portland cement, is incorporated, and this may be wholly or partly replaced by a hardener such as those known under the Registered Trade Marks "Sika" and "Tretol."  The mix may also include a foaming agent such as hydrogen peroxide or aluminium powder to produce a cellular coating.  The composition may be applied by forming it into an aqueous slurry with about 3 volumes of water, spraying to give a coating of the required thickness, and smoothing the surface of the coating whilst simultaneously subjecting it to vibration, preferably by using the vibrated screed described in Specification 622,244, [Group II].  Specification 614,582, [Group X], is referred to in the Provisional Specification.
Patent GB-625917-A (GB)
Title: Improvements in or relating to navigation devices
IPC: G05D1/02
Filed: 1946-10-07
Abstract: 625,917. Radio navigation. SPERRY GYROSCOPE CO., Inc. Oct. 7, 1946, No. 29834. Convention date, Aug. 7, 1943. [Class 40 (vii)] In order to enable a craft to follow an asymptotic approach to the equi-signal courseline defined by an overlapping-beam radio beacon, the receiver carried by the craft comprises an indicator responsive to both the displacement of the craft from the course-line and to the rate of change thereof, so that by maintaining the indicator at a zero indication the desired approach will be made. The beacon may radiate signals of either the complementary or simultaneous kind and may be used to define a course in either the horizontal or vertical plane. Fig. 3 illustrates a system wherein the two lobes are modulated at different audio-frequencies. The audio-frequencies are separated at the receiver, which is similar to that described in Specification 550,660 as far as the audio-frequency stage, and applied to respective transformers 12 and 13. The signals at tappings 17 and 18, whose difference is a measure of the displacement of the craft from the course, are applied to the grids of rectifying valves 19 and 21. These signals are also separately rectified by double-diode 24 and applied through differentiating condensers to the grids of valves 22 and 23 which have common cathode circuits with valves 19 and 21 respectively. The outputs from these cathode circuits are applied differentially to the meter M which consequently records a signal compounded from signals proportional to the displacement and its rate of change. The sharpness of the asymptotic approach may be controlled by adjusting the potentiometer 27 to adjust the relative amplitudes of the displacement and rate of change signals. In an alternative circuit, Fig. 4, the outputs of the transformers 12 and 13 are rectified at 33 and 34 and applied by resistors 39 and 41 respectively and condensers 42 and 43 respectively to grids of valves 38. The couplings via the resistors provide a component proportional to the displacement and those via the condensers provide a component proportional to its rate of change, so that the signal applied to the meter M is a composite signal, as before. The sharpness of the approach path may be varied by varying the resistors 39 and 41 and by switching in or out additional condensers 47 and 48.
Patent GB-1112363-A (GB)
Title: Shear plate for dry-shaving apparatus
IPC: B26B19/38
Filed: 1965-07-14
Abstract: 1,112,363. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 July, 1965 [17 July, 1964], No. 29844/65. Heading B4B. A shear plate for a dry shaver which is constructed partly for shaving and partly for hair clipping and has a rotary cutter comprises a disc-shaped portion 4 and a cylindrical rim 7, the portion 4 being connected to the rim 7 over sectors 8, 15 and 16 by radially-extending portions 5 and 6 of the shear plate while over the remaining sector 18, the shear plate is formed with radially-extending portions 10 which terminate in blunt tips just inside the rim 7 the upper part of which is removed to form an opening 12. The sector 8 of the shear plate is thinner than sectors 15, 16 and 18. The cutter consists of a ring of blades carried on radial arms.
Patent GB-1237840-A (GB)
Title: Double-ended fastener
IPC: F16B15/00
Filed: 1969-06-12
Abstract: 1,237,840. Spiked plates. AUTOMATED BUILDING COMPONENTS Inc. 12 June, 1969 [27 Aug., 1968], No. 29867/69. Heading F2H. A spiked plate comprises sheet metal member 16 having teeth 18 extending from two opposite side edges of the member, the teeth having, adjacent their roots, shoulder portions 22 for penetrating a member with which the spiked plate is to be used. The teeth 18 may be of equal length or of different lengths to adjacent teeth (Fig. 8, not shown) or to those on the opposite side edge of the member 16 (Fig. 10, not shown). The teeth may be dished across their width and axially aligned or offset relative to those on the opposite side edge of the member 16. The teeth 18 may be longitudinally straight or curved and the member 16 may be bent so that the spiked plate is of serpentine nature (14) (Fig. 1, not shown) or part circular in cross-section (Figs. 11, 12, not shown). The spiked plate may be used to connect two wooden members in face-to-face abutment so as to form a laminated beam structure.