baber/WOPTO huggingface dataset:
Patent GB-999526-A (GB)
Title: Improvements in ball bearing and their manufacture
IPC: B21K1/04
Filed: 1964-03-11
Abstract: 999,526. Bearings. M. BUSHI. March 11, 1964 [March 21, 1963], No. 10320/64. Heading F2A. [Also in Division B3] The outer race of a ball bearing is formed from a blank B, which has longitudinal grooves mating on corresponding ridges on a die block 28, the grooves forming raceways for the balls. A reciprocating plunger 40 maintains the blank B in position and an upper die member 44 bends the end portions of the blank to the radius of the finished race. The ends of the blank are cut to length and it is transferred to a forming mandrel 60, the diameter of which equals that of the finished race. The final shaping of the blank B is achieved by a pair of opposed forming dies 64, 66 which have bevelled faces 75 to accommodate the partially withdrawn holder 62 as they approach one another and meet in completing the shaping.
Patent GB-117491-A (GB)
Title: Improvements relating to Signalling by Means of Vibrating Matter.
Inventor: WILLOX WILLIAM
IPC: G10K1/066
Filed: 1917-07-17
Abstract: 117,491. Willox, W. July 17, 1917 Mechanical telegraphs.-An audible signal or an alarm signal perceptible to the touch at a distance consists of a long rod or tube which is struck by a clapper. The clapper may be operated electrically and controlled by a passing train when used on railways. More than one clapper may be employed with a single rod; while more than one rod emitting sounds of different quality may be employed to denote different signals.
Patent GB-871207-A (GB)
Title: Process and apparatus for recovering ammonia
IPC: C01C1/12
Filed: 1959-03-25
Abstract: <PICT:0871207/III/1> Ammonia is recovered from ammonia-containing gas by scrubbing the gas with a solution of ammonium bicarbonate to absorb the ammonia and saturating the resulting scrubbing solution with CO2 to precipitate NH4HCO3 which is recovered.  Gases containing ammonia, e.g. coke oven gases, enter the base of chamber 1 and are scrubbed therein by contact with ammonium bicarbonate solution entering through conduit 13 and leaving through 7.  Residual effluent gases exit chamber 1 through conduit 5 and pass through chamber 6 where they are contacted with fresh water which removes final traces of ammonia therefrom, the washing water being fed into conduit 7 as compensation for the water lost in the plant due to evaporation or reaction in forming bicarbonate.  Scrubbing solution containing excess ammonia passes through conduit 7, in which filter 8 is provided to remove any traces of iron oxide which may be present, to chamber 2 where it is contacted with gaseous CO2, extracted say from smoke fumes, entering through distributer 9.  Residual CO2 and any H2S formed is passed from the chamber by a conduit at the top thereof the CO2 being recovered and recycled if desired.  Ammonium bicarbonate crystals precipitated during the CO2 treatment settle in hopper 10 at the bottom of chamber 2 from whence they are removed through valve 11 and passed to a drying device 12 where they are dried and recovered.  The ammonium bicarbonate solution remaining in chamber 2 may be returned as scrubbing solution through return conduit 13.
Patent GB-498916-A (GB)
Title: Sterol derivatives and process of forming same
IPC: C07J9/00
Filed: 1937-04-13
Abstract: The steriochemical configuration of the sterol skeleton with respect to the asymmetric carbon atom at position-3 is reversed by converting the sterol 3-halide into its magnesium Grignard derivative, and decomposing the latter to obtain a racemic mixture which may be optically resolved.  One constituent of the racemic mixture is a sterol derivative with a configuration of the carbon atom-3 opposite to that of the original sterol halide. Particularly valuable results are obtained by the application of the process of the present invention to cholesterol, in order to obtain the epi-cholesterol.  In examples: (1) Cholesteryl chloride is converted into its Grignard derivative which is subjected to a slow stream of oxygen at a low temperature and then decomposed in the cold with 5 per cent sulphuric acid.  The product is worked up to give dl-3-hydroxy D 5-cholestene which is crystallized from alcohol and sublimed in high vacuum.  The racemic material is separated into cholesterol and epi-cholesterol by means of digitonin.  The identity of the hitherto unknown epi-cholesterol was established by its reduction to the known epi-cholestanol in example (2) by shaking under pressure with hydrogen in the presence of platinum oxide catalyst.  (3) A Grignard reagent prepared as described in example (1) is subjected to a slow stream of carbon dioxide at a low temperature, and then decomposed with cold dilute sulphuric acid to give the corresponding cholesteryl acid which is recrystallized from benzene.  The dl-3-carboxy-D 5-cholestene adds on bromine readily, and can be resolved into its separate d- and lforms by any of the usual methods.  (4) The dl-3-carboxy-D 5-cholestene prepared as described in example 3 is converted into its methyl ester by heating under reflux in methyl alcohol solution in the presence of a small amount of sulphuric acid. (5) The ethyl ester is prepared in a similar manner to the methyl ester in example (4); ethyl alcohol being substituted for methyl alcohol.  In a similar manner the esters of other alcohols may be prepared.  (6) The dl-3-carboxy-cholestene prepared as described in example (3) is hydrogenated in glacial acetic acid solution in the presence of platinum oxide catalyst to give dl-3-carboxy-cholestane, which may be similarly resolved in any of the usual ways.  (7) The methyl and ethyl esters of dl-3-carboxy-cholestane is prepared from the parent acid in a similar manner to that described in example (4). (8) The ethyl ester of dl-3-carboxycholestane may also be prepared by the catalytic reduction of the ethyl ester of dl-3-carboxy-D 5-cholestene using a platinum oxide catalyst.
Patent GB-1179336-A (GB)
Title: Reciprocating Pumps and Compressors
Inventor: CZERMAK LEO
IPC: F04B1/02
Filed: 1967-03-06
Abstract: 1,179,336. Reciprocating pumps and compressors. L. CZERMAK. March 6, 1967 [March 17, 1966], No.10517/67. Headings F1A and F1N. A pump or compressor comprises a pair of pistons 11, 12 reciprocated by a rod 10, 13 actuated manually or by a motor-driven eccentric, the rod extending through an axial outlet passage 9, and carrying outlet valves 17b, 17d, or a single outlet valve, Fig.9 (not shown), and an inlet passage 8 being concentric with outlet passage 9 and provided with annular inlet valves 19, 21. As shown, pumping takes place in chambers 6 and 7, chambers 15 and 16 being inter-connected by piston rod bore 13a. In Fig.5 (not shown), piston rod bores inter-connect chambers 6 and 16, and 7 and 15. In operation, on the rightward stroke, piston rod recess 10b moves beneath outlet valve 17b and connects chamber 6 with outlet passage 9. The outlet pressure entering the cylinder closes inlet valve 19, and the rising pressure in the chamber opens outlet valve 17b. At the same time, inlet valve 21 opens under differential pressure, and outlet valve 17d is closed by sleeve 17c frictionally engaged by piston rod 10. The inlet and outlet valves may be spring-loaded. At the end of the leftward stroke, as shown, piston 12 holds inlet valve 19 open and outlet valve 17b closed by engaging pin 20b and sleeve 18a, respectively. In Fig.3 (not shown), valve disc 17d is attached to a sleeve having the functions of sleeves 17c and 18a. In Fig.4 (not shown), recesses 10b, 10d are omitted and clearance is provided between the outlet valves and the piston rod, the clearance being closed by sleeves on the piston rod in the closed positions of the outlet valves. In Fig. 5 (not shown) the inlet and outlet valves are operatively inter-connected by a sleeve on the piston rod. In Fig.8 (not shown), outlet valve 17d is attached to a sleeve operatively connected to inlet valve 19. The pump or compressor may be disposed vertically with handle 14 uppermost, valve 21 then being gravity-operated, and recess 10d omitted. Elastic flanges 11b, 12b of the pistons act to damp the piston movement at the end of the inward stroke, and to hold the inlet valves closed. The pump or compressor may be made of plastics, e.g. hard P.V.C. for use with corrosive liquids.
Patent GB-655273-A (GB)
Title: Improved photographic materials
IPC: G03C5/315
Filed: 1948-04-15
Abstract: 655,273. Photographic materials. KODAK, Ltd. (Eastman Kodak Co., and Yackel, E. C.). April 15, 1948, No. 10544. [Class 98 (ii)] Photographic material comprises a support bearing a layer of light-sensitive silver halide emulsion in a substantially unhardened hydrophilic colloidal binder containing a substantially water-insoluble tanning developing agent. The developing agent may have a solubility in phosphate-citric acid buffer solution of pH 5.0 of from 0.005 to 1.0 gram per 100 c.c.s. buffer solution, and may be 3 : 4-dihydroxydiphenyl, 2 : 5 - dihydroxydiphenyl, 2 : 3 - dihydroxydiphenyl, or 5 : 6 : 7 : 8 - tetrahydronaphthahydroquinone. 2 - Hydroxy - 5 - aminodiphenyl and 3 : 4-diaminodiphenyl are not useful. The emulsion may be a substantially unhardened gelatino-silver bromide emulsion, or may be a silver chloride or other halide emulsion in gelatin or polyvinyl alcohol. A small proportion of hardener such as formaldehyde may be used. The support may be tracing cloth, cellulose ester film, paper, or glass. After exposure, the material is developed in an aqueous solution of an alkali such as sodium or potassium carbonate or hydroxide, ammonium hydroxide, or an amine. A mixture of sodium hydroxide and carbonate may be used. Reducing agents such as ascorbic acid, hydrazine hydrochloride, or sodium sulphite, and sodium bicarbonate and urea, may be added to the alkaline solution. After development, the material is washed with warm water to remove unexposed colloid and the silver halide contained therein, and is dried. In example 1, aqueous solutions of silver nitrate and sodium chloride are simultaneously run into an aqueous gelatin solution while stirring, an aqueous gelatin solution is added, the pH is adjusted to 5.0, and, if desired, the emulsion is chilled, set, washed, and remelted, a methanol solution of 3 : 5-dihydroxydiphenyl is added, aqueous formaldehyde is optionally added, and the emulsion is coated on sized tracing cloth and dried. After exposure, the material is developed in aqueous sodium carbonate solution, washed with water at 35 C., rinsed, and dried. In example 2, the procedure is similar, a surface-active agent being added to the emulsion. Specification 655,274 is referred to.
Patent GB-496369-A (GB)
Title: Improvements in or relating to throw-out bearings for shaft clutches
IPC: F16D23/14
Filed: 1938-04-06
Abstract: 496,369. Operating clutches. FICHTEL & SACHS AKT.-GES. April 6, 1938, No. 10554. Convention date, April 6, 1937. [Class 80 (ii)] A throw-out bearing for clutches comprises a pressure-transmitting member 11 gripped within a resilient holder which is stamped from a single piece of sheet steel and which comprises a centrally-apertured disc 5 formed with a flanged rim 6 merging into diametrically-opposite semi-cylindrical extensions 7 which fulcrum in corresponding depressions 8 in the operating levers 9. Tongues 12 struck from the parts 7 engage the sides of the levers 9 to prevent lateral movement of the holder. The extensions 7 are held in the depressions 8 by U-shaped wire springs 13, one arm of each of which engages a recess in the lever 9 while the other arm engages in a notch 14 in the part 7. By bending the holder slightly the member 11 can be withdrawn therefrom.
Patent GB-769131-A (GB)
Title: Garbage receptacles
IPC: B65F1/16
Filed: 1955-04-13
Abstract: 769,131. Refuse receptacles; treating moist waste substances. SEVENTEEN EIGHTY HARVEY CORPORATION. April 13, 1955 [April 14, 1954], No. 10593/55. Classes 26 and 111. A garbage receptacle intended to be partially buried in a pit 17 in the ground comprises an upper frusto-conical portion 16 mounted end to end on a cylindrical portion 14 open at both ends, there being removable means 24 for securing and sealing the portions together, and a hinged sealing cover 28. The surfaces of the portions 14, 16 may be covered with resistant tar, bitumen or asphaltic compositions 12, part 14 being also provided at both ends with an outwardly turned rounded flange 18, Fig. 3, and part 16 with an outturned flange 20 at its lower end conforming to the upper contour of flange 18. A gasket 22, U-sectioned tension member 24 with flanges 25, and a bolt part 26 serve to secure part 16 to part 14 in air- and watertight relationship. Similar means may be used for adding additional section(s) 14, a member 24 wide enough to encompass two abutting flanges 18 then being necessary. The cover 28 is hinged by member 34 and pivot 40 to bracket 42 slotted at 52, so that the cover may remain in either open or closed position ; and when closed the cover 28 bears against a tubular gasket 74 on the out-turned flange 76 to seal the portion 16. A latch member 58 pivoted to the cover at 60 co-operates with a member 62 having a slot 72 for reception of a closure pin. Decomposition of foodstuffs placed in the receptacle may be initiated or its rate increased by addition of a culture of yeast, mould and bacteria. The moisture content should be maintained at about 3 to 35 percent of the total foodstuffs. Bacteria which may be added include B. mycoides, B. megatherium, clostridium pastorianum, and thermophilics such as B. ludwigii ; though many of the aerobic, anaerobic and facultative anaerobe categories may be employed.
Patent GB-1028405-A (GB)
Title: New tetrahydro-pyrido-[4,3-d]-pyrimidines and processes for their preparation
IPC: C07D471/04
Filed: 1963-03-18
Abstract: <FORM:1028405/C2/1> The invention comprises 5,6,7,8-tetrahydropyrido-[4,3-d]-pyrimidines of the formula in which R represents a hydrogen atom, or an alkyl group in the 7- or 8-position, R1 represents an aminoalkyl (including a mono- or di-substituted aminoalkyl), alkoxyalkyl, cycloalkyl, aryl or aralkyl group, and R2 represents a hydrogen atom, a hydroxy, alkyl, aryl or aralkyl group, a free or mono- or di-substituted amino group, a nitrogen-containing saturated heterocyclic ring (which may contain a further hetero atom and/or be alkyl- or hydroxyalkyl-substituted) linked to the 2-position of the pyrimidine ring via the nitrogen atom, or an alkylthio or aralkylthio group; non-toxic acid addition salts thereof; and a process for their preparation comprising reacting a piperidone carboxylic acid ester of the formula <FORM:1028405/C2/2> in which Alk is an alkyl group, or an acid addition salt thereof, with a compound of the formula <FORM:1028405/C2/3> or an acid addition salt thereof, and, if desired' converting the compound thus formed to non-toxic acid addition salt of a compound of Formula I.  The compounds in which R2 represents a free or mono- or di-substituted amino group, or a saturated heterocyclic ring as defined above, may also be prepared by reacting a compound of Formula I in which R2 represents a mercapto, alkylthio, aralkylthio or halo-aralkylthio group with ammonia or an appropriate primary or secondary amine, and, if desired, the compound of Formula I thus formed may be converted to a non-toxic acid addition salt thereof.  Piperidone carboxylic acid esters of Formula II are prepared by the Dieckmann condensation of an ester of the formula <FORM:1028405/C2/4>  Pharmaceutical compositions having anti-pyretic, antiphlogistic, diuretic, bacteriostatic, sedative or coronary-dilatory activity for oral, rectal or parenteral administration comprise a compound of the invention together with a pharmaceutical carrier or excipient.  The compositions may be formulated as tablets, coated tablets, capsules, suspensions, ampoules or suppositories.
Patent GB-106977-A (GB)
IPC: C10J3/30
Abstract: 106,977. Sahlin, A. March 19, 1917. Charging. - In a charging device for gas-producers having a rotating distributing nozzle, as described, for example, in Specification 16263/03, the fuel is delivered to the nozzle intermittently so that separate charges are deposited at different points in the producer. The intermittent-feed device shown is of the form described in Specification 7000/15, and the rotary drum 5 is connected through suitable gearing to drive the distributing nozzle 1. The gear ratio is so chosen that for each rotation of the drum 5 the nozzle moves through an angle, which is not an even factor of 360 degrees. The nozzle 1 is preferably fitted with extension pieces as described in Specification 106,943.
Patent GB-567252-A (GB)
Title: Improvements in guards for press and similar machines
IPC: F16P3/00
Filed: 1943-07-02
Abstract: 567,252. Machinery-guards. BROUGHTON, G. J. July 2,1943, No. 10736. [Class 80 (iv)] Press and similar machine - guards that extend across the machine and are swung upwardly and outwardly about a horizontal axis as the ram or similar part descends, have a light flexible apron connected to the lower part of the guard and to the machine structure below the edge of the machine table. The guard comprises a series of rods 15 secured in notches 14 in end numbers 13 pivoted at 12 in brackets 11 bolted to the machine frame. A pair of brackets 16 carry at or below the machine table 10 a spring-returned roller 17, of roller blind type, on which is wound a flexible apron of oiled canvas or other light fabric. As the guard is moved outwardly by the machine, the apron is unwound from the roller and is re-wound thereon as the guard returns. The roller may be on the lower end of the guard, or may be dispensed with.
Patent GB-655175-A (GB)
Title: Improvements in motor controlled pressure governor
IPC: F01K3/22
Filed: 1948-04-19
Abstract: 655,175. Springs. FAIRWEATHER, H. G. C. (Svenska Turbinfabriks Aktiebolaget Ljungstrom). April 19, 1948, No. 10792. [Class 108(iii)] [Also in Group XXIX] A spring 6 loading a fluid-pressure governor (see Group XXIX) is made up of a number of grooved discs contacting each other along flanges on their outer peripheries, and the loading exerted by the discs can be adjusted by rotating a screwed backing washer 25.
Patent GB-337718-A (GB)
Title: Improvements in or relating to rolling safety guards
IPC: E06B9/18
Filed: 1930-04-05
Abstract: 337,718. Kohler, A. April 6, 1929, [Convention date]. Window guards.-A roll-up guard is produced by arranging a plurality of similarly shaped " zig-zag " bars in parallel spaced relationship, and by threading on the bars a number of pierced plates which connect each bar alternately with one and then the other of the two adjacent bars. As shown, a number of curved bars c<1>, Figs. 1 and 5, are interconnected by connecting links e which are strung on the said bars when the latter are in the position shown in Fig. 5. For strengthening purposes, the links e are bored centrally to receive rods b, which rods, and the bars c', are secured in position to the end links bv cotter pins s. The rods b may be oblong or circular in section and may be dispensed with if desirable.
Patent GB-513497-A (GB)
Title: Improvements in and relating to screws and the method of manufacturing them
IPC: F16B23/00
Filed: 1938-04-09
Abstract: 513,497. Bolts, screws &c. COLEMAN, C. J., and PITT, G. April 9, 1938, No. 10883. [Classes 89 (i) and 89 (ii)] A wood screw, bolt &c. is provided with a tapered conical cavity for driving purposes and may be engaged by a tapered driving tool which may have a polygonal section to provide edges for gripping the tapered wall of the cavity. As shown in Fig. 2, a wood screw is provided with a stepped conical cavity, the upper parts c<3,> c<2> being in the form of truncated cones, and the lower part a pointed cone. The shank part of a bolt as well as the head part may have a conical shaped cavity.
Patent GB-181546-A (GB)
Title: Improvements in and relating to vices, and supporting devices therefor
IPC: B25B1/24
Filed: 1921-04-14
Abstract: 181,546. Steele, G. A. April 14, 1921. Vices; benches, work.-A vice for gripping tubes &c. comprises two clamping-blocks drawn together by a pair of bolts, the lower block having a V-groove in its upper surfaces and the upper block provided with two downwardly in. clined surfaces meeting centrally at their lower edges. A lower block 2, Fig. 1, provided with a central notch 5 and serrations 7 co-operates with an upper block 1 provided with downwardly inclined faces 10, a groove, preferably circular in the meeting edge forming two gripping teeth 12. The blocks are drawn together by screws 3 threaded through a plate 4 and provided with jointed ends 14 and hexagonal heads 13 for operating them. The block 1 is notched at 16, Fig. 2, to allow it to swing out and release the pipe on turning the adjacent bolt 13. The vice is attached to a bench so as to project therefrom by horizontal projecting arms 17 and vertical angle-irons 19, or it may be mounted on the stand described in Specification 181,547.
Patent GB-294511-A (GB)
Title: Improvements in motor vehicle construction
IPC: B60K17/04
Filed: 1927-04-23
Abstract: 294,511. Marks, E. C. R., (Relay Motor Products Corporation). April 23, 1927. Axles and axle structures.-A motor vehicle has its driving-wheel spindle 19 mounted in a casing 33 which can swing about the axis of the live axle 50. The spindle 19 is secured in the hub 11 of the wheel and is supported in roller bearings 31, 32 in the casing 33 which has a cylindrical extension 56 mounted in bearings 57 in the load-supporting axle casing 58. The cylindrical extensions 56 on the two sides of the vehicle are connected by a bridge-piece extending across the usual differential gear. The live-axle 50 runs in bearings 51 in the casing 33 and carries a pinion 53 in mesh with an internal toothed ring 23 carried by a spider 22 from the wheel hub 11. A dust-excluding casing 29, 30 surrounds the gearing, the part 29 being carried by the casing 33. Rubber stops on the axle casing 58 co-operate with a cap 37 on ,the casing 33 .to limit the swinging movement of the casing.
Patent GB-755455-A (GB)
Title: Plate racks
Inventor: FORTEY JOHN CECIL EASTLAND
IPC: F24C15/12
Filed: 1954-04-14
Abstract: 755,455. Plate racks. RADIATION, Ltd. March 15, 1955 [April 14, 1954], No. 10961/54. Class 28(2). [Also in Group XI] A plate rack is made from a sheet 4 of metal or plastic dished and formed with integral partitions defining deep transverse troughs 9 and with a curled-down rim 5 to fit over a three-sided wire frame 6 supported by brackets 7 on the back plate 8 of a gas &c. cooker. The centre of the dished part is open being bounded by edges 11 which form feet so that the rack when lifted from its support frame 6 can be placed on a table to serve as a tray. The downturned rim 5 has a few spaced metal lining pieces 12.