baber/WOPTO huggingface dataset:
Patent GB-945350-A (GB)
Title: Hydraulic apparatus
Inventor: THOMA OSWALD
IPC: F16H47/02
Filed: 1959-09-17
Abstract: 945,350. Change-speed control. DOWTY HYDRAULIC UNITS Ltd. Sept. 8, 1960 [Sept. 17, 1959], No. 31760/59. Headings F2C and F2D. A hydrostatic transmission comprising a variable-displacement pump 1 driving a motor 2 in series with a two-speed gear unit 9 is so arranged that the pump control-rod 6 is operated to vary the pump output to bring the motor shaft 8 into synchronism upon movement of the gear lever 21. As shown in Fig. 1, rod 6 is operated by a speed control lever 22 connected to a lever 28 rotatable about a pivot 31 on a carrier 32 attached to a link 35 connected to the gear lever 21. Assuming lever 21 to be moved to engage high gear, pivot 31 is moved to the left by link 35, thus moving control-rod 6 to reduce the displacement of pump 1 and the speed of motor shaft 8 to permit engagement of the high gear. In passing through neutral a link 38 connected to link 35 operates an unloading valve 37 between the fluid supply and exhaust lines 3, 4. With high gear engaged the inclination of lever 28 prevents movement of carrier 32 to the right, and thus engagement of low gear, until speed is reduced by adjustment of lever 22. A clamp 39a operated by a cam 40a through links 39, 40 locks control lever 22 during movement of gear lever 21, but is unlocked when lever 21 is at the high or low gear setting. In the embodiment according to Fig. 3 a single control lever 52 operates differential-piston servomotors 54, 74 supplied from a pump 69 and operating pump control-rod 6 and gear change lever 21, respectively. Lever 52 is mounted on a shaft 53 carrying a cam 79 operating a spring-loaded vent valve 65 which, in the position shown, is closed to supply high-pressure liquid to both ends of the cylinders. These conditions obtain when lever 52 is moved forward until a step-in cam 79 allows valve 65 to open, when the pressure in the upper chambers of the cylinders is reduced and both pistons move upwards to operate rod 6 and gear lever 21 to engage high gear. In the further arrangement shown in Fig. 4, lever 21 is connected to a piston valve 92 in a cylinder 88 connected to fluid lines 3, 4 and also to a further cylinder 85 containing a piston 84 attached to a link 82 incorporating a spring 81 and connected to control lever 22. Valve 92 operates in such a way that upon moving gear lever 21 to engage high gear the higher pressure developed in pipe 4 is communicated to the right-hand side of piston 84 to reduce the displacement of lever 22 and thus of the pump control-rod 6. At high forward speed a detent piston 99 is projected forward to prevent the return movement of gear lever 21. Instead of gear unit 9 being of the spur pinion type it may comprise a low-speed epicyclic gear and a friction clutch for establishing direct drive, Fig. 2 (not shown).
Patent GB-1100308-A (GB)
Title: Ejector type refrigeration system
IPC: F25B1/08
Filed: 1965-07-26
Abstract: 1,100,308. Ejectors. R. C. SCHLICHTIG. July 26, 1965, No.31818/65. Heading F1E. [Also in Division F4] An ejector comprises an inlet 26 which receives a power fluid vapour from a boiler (not shown), an inlet 18 through which vapour is drawn from the evaporator of a refrigeration system (see Division F4) and an outlet 24 for the mixed fluids.
Patent GB-1064856-A (GB)
Title: Improvements in combine harvesters
Inventor: JARVIS JOHN STEVENS
IPC: G01F23/00
Filed: 1964-08-05
Abstract: A combine harvester includes a grain tank on one side wall of which a pressure sensitive switch is adjustably mounted, the switch being electrically connected in series with the battery of the combine, the ignition switch, a lamp, and a make and break device.  The arrangement is such that when grain contacts the pressure sensitive switch the make and break device causes the lamp to flash.
Patent GB-1172577-A (GB)
Title: Trans-3,7-Dimethyl-5,7-Octadien-1-yl Esters
IPC: C11B9/00
Filed: 1967-07-11
Abstract: 1,172,577. Trans-3,7-di methyl-5,7-octadien- 1-yl esters, L. GIVAUDAN & CIE S.A. 11 July, 1967 [14 July, 1966], No. 31843/67. Heading C2C. Trans - 3,7 - dimethyl - 5,7 - octadien - 1 - yl esters of the general formula wherein R is H or C 1-4  alkyl, may be prepared by pyrolysing under neutral conditions a polyester of the general Formula III and/or IV The pyrolysis is preferably performed at 400- 550‹ C. In the examples the acetate, propionate and butyrate are prepared. Rosoxide, cis-trans 2-(2<SP>1</SP>-methyl-1<SP>1</SP>-propen-1<SP>1</SP>- yl)-4-methyltetrahydropyran, is obtained from the acetate or butyrate by saponification and cyclization in the presence of an acid catalyst. The compounds of Formulae III and IV are obtained by reacting a citronellyl ester of the general formula with an hydroxylating agent to give the corresponding 3,7-dimethyl-6,7-dihydroxyoctan-1-yl ester and acylating the latter.
Patent GB-1037337-A (GB)
Title: Improvements in seam welding machines
IPC: B23K11/00
Filed: 1964-08-05
Abstract: 1,037,337. Welding. NORD AVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Aug. 5, 1964 [Oct. 31, 1963], No. 31899/64. Heading B3R. A method of seam welding metal elements forming parts of rigid panels comprises the steps of providing two welding arms each carrying a welding wheel at one end, each arm being pivotally mounted on a shaft carried by the moving head of a welding machine, there being means between the arms to ensure that the wheels apply constant and adjustable pressure on the elements, the centre of gravity of the assembly of the arms and wheels being vertically below the shaft, so that the pressure applied by the wheels is independent of the weight of the wheels and of surface irregularities of the elements and arranging the elements to be welded on a chassis between the wheels so that the weight of the chassis has no action on the wheels. The machine shown in Fig. 1 comprises arms 2 and 3 pivoted on a shaft 9 by insulating clamps 11, 12 and carrying welding wheels 7 and 8. An hydraulic jack 10 is mounted between the arms. The elements to be assembled comprise two flat stainless steel sheets 5, 5 and two corrugated sheets 6, 6. Copper electrodes 17 may be used as electrical conductors and mechanical supports. The elements are held in channels 16 mounted on a chassis arranged to move vertically. In a second embodiment, the machine has a table to support a hollow cylindrical workpiece and the welding head is moved vertically by a screw mechanism. Limit switches can be provided to give automatic indexing of the table and reversal of the welding head travel.
Patent GB-814681-A (GB)
Title: Improvements in railway signalling track circuits
IPC: B61L1/18
Filed: 1956-10-19
Abstract: 814,681. Railway track circuits. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Oct. 19, 1956 [Dec. 17, 1955], No. 31906/56. Class 105. In a railway track circuit signalling system employing electrically continuous rails both for power and signalling currents, the rails of each track circuit are fed with periodic signalling current impulses, e.g. A.C. or peak impulses, each track circuit being identified by a specific impulse frequency or by respectively phased impulses of the same frequency and pick-up devices for the signalling currents in the rails are coupled to control at least one relay through an energy accumulating device in such a way that the relay or relays is/are responsive only to the impulses appertaining to the section and is/are unaffected by the traction power currents circulating in the rails. As shown in Fig. 1, time phased unidirectional or alternating current impulses are fed from the impulse generators 3, 3A, e.g. electronic impulse generators, into the rails 1, 2 and circulate in opposite directions indicated by the arrows i and suffer attenuation due to ballast leakages. Pick-up coils 4, 5 such as the coil 4, Fig. 5, on a magnetic core 20 associated with a rail 1, are associated with the rails 1, 2 at a desired distance from the generator 3, the coils 4, 5 being so connected that the currents induced therein by the signalling currents in the rails are additive, but the currents due to the traction currents in the rails tend to neutralize each other. The currents in the coils 4, 5 are fed through a receiver device 7 which may take the form of an intermittently conducting electronic valve and a capacity, synchronized to the generator 3 as by a polyphase line 12, and applies its output to a relay 6 Similarly the receiver 7A fed by pick-up coils 4A, 5A in the adjacent section is synchronized to the generator 3A by a phase of the polyphase line 12 different from that of the generator 3 and receiver 7. Adjustable phase-shifters 14, 14A may be used in the control circuits of the receivers 7, 7A. The operation of the circuit in the presence of a shunting axle 15 is such that the effective track sectional length LA extends beyond the point of connection of generator 3A and overlaps the adjacent section by a length m. The signalling currents in the pick-up devices 4, 5 may be supplemented by currents derived from the voltage between the rails 1, 2. In a two-way traffic system separate sets of pick-up devices are provided for each traffic direction and are associated with corresponding track relays. Alternatively, a plurality of separate pick-up windings may be disposed at the opposite extremities of the section and connected so that the signal currents are additive and the traction currents cancel each other and in this case the impulses are fed to the rails at the centre of the section, the result being a better definition of the length L.
Patent GB-220874-A (GB)
Title: Improvements relating to air-cooled tires without pneumatic tubes and the method of making same
IPC: B29D30/02
Filed: 1923-12-20
Abstract: 220,874. Schragin, K. Dec. 20, 1923. Moulding wheel tyres.- Tubeless pneumatic tyres are formed by applying to a metal ring a, apertured at a', rubber bridges b alternating with cores c, covering the whole with a close or open spiral wrapper d, applying a cover portion s, and vulcanizing; and after vulcanization, removing those portions of the wrapper d, covering the apertures a<1> and withdrawing the cores. As shown, the cores are formed in sections c<1>, c<2>, c<3>, the outer sections c<2>, c<3>, being furnished with projections k to form apertures o<2>, Fig. 14, through the walls of the tyre. The chambers i, formed between the bridges b are connected by peripheral apertures b<1> formed by a sectional core m, Fig. 3. Vulcanite strips t may be applied to the ring a before the bridges and cores, and the latter may extend transversely or obliquely across the tyre or may be angled. The cores may be formed of gypsum &c. The apertures a<1> may be large enough for the attachment of removable non-skid studs u, Fig. 10. Fig. 16 shows a modification in which the bridges b are formed with fabric insertions x and are cut away to provide communcating passages b<2>, b<3>, b<4>, the openings o<2> being dispensed with.
Patent GB-417160-A (GB)
Title: Improvements in and relating to steel dams
IPC: E02B7/14
Filed: 1933-11-16
Abstract: 417,160. Dams. FULTNER, J., 10, Zlatnicka, KRIVOSHEIN, G. G., 27, Buckova, Bubenec, and SEKLA, J., 488, Zahrbitovem, Branik, all in Prague. Nov. 16, 1933, No. 31966. [Class 68 (ii).] A steel dam consists of a series of convex cylindrical walls 1 provided with reinforcing ribs 7 and supported on longitudinal girders 2, which are supported in turn by struts 3. If the water flows over the dam, a series of cylindrical walls 11 are provided on the air side of the dam. The two series of cylindrical walls may meet directly or be joined by surfaces which may be flat and oblique as shown at 12 and 13, Fig. 11. In order to reduce the length of the dam the struts 3 may bear on a buttress.
Patent GB-392579-A (GB)
Title: Improvements in or relating to model boats
IPC: A63H23/04
Filed: 1931-11-19
Abstract: 392,579. Toy boats. SHOE FORM CO., Inc., 26, Aurelius Avenue, Auburn, New York, U.S.A.-(Assignees of Witt, W. J. de ; Auburn, New York, U.S.A.) Nov. 19, 1931, No. 32062. Convention date, Nov. 20, 1930. [Class 132 (iii).] The hull of a model boat consists of two sheets of celluloid or other non- metallic material, one sheet 11 forming the bottom, side walls and bow, and the other sheet 12 forming the stern. The sheet 11 is shaped m a manner similar to that described in Specification 265,796, [Class 17 (iii), Boots and shoes, Protectors &c. for], and has its flanged after end secured to the sheet 12 by the use of acetone or other cement or adhesive. The side walls of the hull are provided with continuous flanges 14 to receive a sliding hatch 18 and other fittings, and the bow is finished by the application of a curved strip 16 and sheet 15. The boat is driven by a clockwork motor 20 and steered by a celluloid rudder 34 that is joined to a celluloid tiller 35 by a rod 36 passing through a tube in the boat. The rudder is held in set position by the engagement of the tiller between two of an arcuate series of bosses 39 on the sheet 12.
Patent GB-296014-A (GB)
Title: Improvements in hand bags
IPC: A45C3/06
Filed: 1927-11-29
Abstract: 296,014. Lowe, J. N. Aug. 23, 1927, [Convention date]. Hand and like bags.-The hand- or " Boston " bag to which the invention relates is shown in Fig. 1; the bag is provided with handles 5, 6, and the mouth is closable by a slidable fastening 7, 8. The bag is adapted to fold into the form shown in Fig. 2, the ends 3 folding inwardly over the sides which fold outwardly from the. bottom and then inwardly, the handles lying under the folded ends. The bag consists of two main portions, a blank 9, Fig. 10, of leather &c. adapted to form the sides 1 and bottom 2 and a strip 19, Fig. 12, forming the top of the bag and the two ends. The blank 9 and the two lining pieces 10, 11 are stitched to a piping strip, a strip of material to provide pockets 15 for the bag being also attached to the blank. Part of the blank is stiffened by the insertion of a cardboard or like strip 16, Fig. 3, to form the bottom of the bag. The strip 19 has a lining piece 20 both slotted at 23 to form the bag mouth to which are fitted tapes 24 for the fastening means 7 Tapered stiffeners 29 shaped to reinforce the ends of the bag mouth are inserted between the ends of strip 19 and the lining. They have extensions 32, 33 pivoted to the inner ends which are adapted to stay the corners between the ends and the top of the bag (see Fig. 1). The parts 9 and 19 are sewn together as shown in Fig. 13, the sewn parts turned inside out to form the bag. The bottom stiffener 16 is preferably inserted and secured in place by rivets after the parts are sewn together. The handles are attached by being sewn into the seams during the main stitching operation. Stiffeners 36, Fig. 8, of cardboard &c. secured within folded pieces 35 of fabric are stitched into the upper seams to reinforce the bag in the region of the handles.
Patent GB-879804-A (GB)
Title: Improvements in or relating to floor-, wall- or ceiling-covering cutting devices
IPC: B44C7/02
Filed: 1959-09-22
Abstract: 879,804. Cutting devices. HICKSON, F. Aug. 4, 1960 [Sept. 22, 1959], No. 32157/59. Class 31 (2). A device for cutting floor, wall or ceiling coverings comprises locating means having abutment surfaces for pressing a covering at a, floor/wall or wall/ceiling junction respectively into contact with the floor and the wall, or with the wall and the ceiling, and having a curved guide between the abutment surfaces for holding the covering in a smooth curve between the wall and the floor, or between the wall and the ceiling, the device being adapted to locate a cutting blade relative to the curved guide whereby to permit the blade to cut the covering only at a predetermined position relative to the floor/wall or wall/ceiling junction. The device shown comprises a cylindrical body 10 which abuts linoleum 25 to be cut at surfaces constituted by lines A and B and has a segmentary recess 18 in which a cutting blade 19 is secured so as to project chordally therefrom, by a retaining plate 20 and screw 21. The arms of a U-shaped metal rest 12 are secured to the ends of a bolt 15 extending through the body 10 and the position of the blade 19 relative to the lines A, B is determined by means of an indication mark on an arm 13 of the rest 12 which is registrable with one of a plurality of marks on a plate 24 secured to an end face of the body 10. The body 10 is provided with a handle 11. The body 10 and the rest 12 have felt coverings 22, 23 which are dispensed with when carpet is cut. The blade 19 may be triangular or trapezoidal and may have a cutting edge on only one side thereof. The linoleum or carpet is cut by sliding the cutting device along the wall/floor junction.
Patent GB-632111-A (GB)
Title: Improvements in or relating to high frequency electric induction heating apparatus
IPC: H05B6/36
Filed: 1947-12-05
Abstract: 632,111. Induction heating. GENERAL ELECTRIC CO., Ltd., and SMITH, R. Dec. 5, 1947, No. 32163. [Class 39(iii)] A single turn split cylinder type secondary 3 is mounted so as to slide in and out of a multi-turn primary 1 to vary the magnetic coupling and loading of the H.F. generator (not shown). Connection is made from the secondary 3 to the work coil 13 by means of brushes 9 engaging with members 8 soldered to the edges ot tne gap 4 in the secondary cylinder. Position of minimum coupling is shown at 3<SP>1</SP>. Specification 615,150 is referred to.
Patent GB-846117-A (GB)
Title: Improvements in appliances for cutting, chopping, and/or raising from the ground, green crop, straw or the like
Inventor: WILDER JOHN HERBERT WYNDHAM
IPC: A01D34/535
Filed: 1956-10-23
Abstract: 846,117. Cutting vegetation. WILDER Ltd., J. Jan. 20, 1958 [Oct. 23, 1956], No. 32206/56. Class 6(3). Relates to a vegetation-cutter or cutterloader of the type having a transverse horizontal rotor fitted with radial blades. According to the invention, each blade has a horizontal cutting tip 6 and a front face 5 which curves rearwardly and inwardly towards the mounting end of the blade. The blades are mounted on arms 1 freely pivoted to shafts 9 mounted parallel to the axis of a rotor 10. Each arm is shaped at 1a to form a support for the blade 3 which is U-shaped in cross-section. The blades are used in the machine described in Specification 846,118. Specification 816,421 also is referred to.
Patent GB-648198-A (GB)
Title: Contacting finely divided solids with gases
IPC: B01J8/00
Filed: 1948-12-14
Abstract: <PICT:0648198/III/1> In the contacting of finely-divided solids, e.g. catalysts, with gases in a reactor 1 employing the fluidized technique, agglomeration of the solids is minimized by withdrawing the solids through a plurality of vertical tubes such as 12, 13 and recycling them through a corresponding number of inclined tubes 3, 4 which convey the incoming gases to the bottom of the reactor.  The inclined tubes are preferably manifolded together at the apex of the conical base of the reactor.  In starting up the reactor, catalyst may be fed from hopper 8 through line 10 to tube 12 instead of through line 9 direct to the reactor.  Screens 18, 19 are provided in lines 3, 4 to obviate blockage of the feed-lines during rest periods. The vertical tubes 12, 13 may extend to the upper level 7 of the fluidized bed and may form part of heat-exchanger equipment. Temperature controlling means, e.g. internal or external coils may be provided.  As applied to the synthesis of hydrocarbons by reacting carbon monoxide with hydrogen in the presence of a finely-divided iron catalyst, stripping gas, e.g. steam or tail gas, may be introduced into tubes 12, 13 at 16, 17.
Patent GB-153917-A (GB)
Title: Improvements in or relating to the preparation of tropinone mono-carboxylic acid esters
IPC: C07D451/06
Filed: 1920-11-16
Abstract: Tropinone monocarboxylic esters are obtained by condensing acetoacetic esters with methylamine and succindialdehyde.  In an example, the reaction using acetoacetic ethyl ester is effected in a well-cooled alcoholic solution.  The product may be converted into ecgonine.
Patent GB-1377149-A (GB)
Title: Method and apparatus for sealing and separating liquid-filled pouches
IPC: B29C65/22
Filed: 1972-07-11
Abstract: 1377149 Seaming non-metallic sheet material DU PONT OF CANADA Ltd 11 July 1972 [12 July 1971] 32355/72 Heading B5K [Also in Division B8] In a form and fill packaging machine, thermoplastics tubing A, seamed at B, passes between reciprocable sealing and severing jaws 11, 12 operative to form transverse double seals C after nozzle 17 has delivered a pre-determined volume of liquid into the tubing. The sealing device comprises a central wire 18 flanked by hollow tubes 19 which may be cooled by air or liquid. Elements 18, 19 are enclosed in a non- stick sheath 16 and are momentarily heated by an electric impulse, element 18 reaching the highest temperature to form a hard seal and sever the tubing, while elements 19 form soft seals. Jaw 12 has a flexible back-up pad 15. Tubing A comprises a composite of a base film of polyamide, polyethylene terephthalate, polyvinyl fluoride, P.V.C., vinylidene chloride polymer, polyacrylonitrile, or polystyrene, and one or two sealant films of polyolefin.
Patent GB-164400-A (GB)
Title: Improvements in and relating to sewing machines
IPC: D05B55/14
Filed: 1920-09-16
Abstract: 164,400. Bell, F. J. T., Bell, H. C., and Twin Bobbin Sewing Machine Co., Ltd. Sept. 16, 1920. Sewing - machines; governing needle thread ; needles, driving.-A take-up lever 14, pivoted at 13, is linked to the free end of a lever 8 actuated at an intermediate point 10 by a cam - groove. The needle - bar is driven by a link 6 and a crank 7 fixed upon the front of the takeup cam-disc.
Patent GB-999703-A (GB)
Title: Improvements in or relating to tedders
IPC: H01J37/305
Filed: 1962-08-23
Abstract: The subject-matter of this Specification is the same as that of Specification 999,701 but the claims differ.  Specifications 999,702, 999,704, 999,705, 999,706 and 999,707 also are referred to. Reference has been directed by the Comptroller to Specification 937,905.
Patent GB-277210-A (GB)
Title: Improvements in apparatus for the electromagnetic separation of ores
IPC: B03C1/14
Filed: 1926-06-08
Abstract: 277,210. Davies, A. June 8, 1926. Magnetic separators.-In a magnetic separator of the kind comprising an upper rotating magnet and a lower fixed magnet, between which is supported a feed conveyer, the point or points of the upper magnets are formed so as to produce an interrupted attraction on the material to be treated by periodically breaking the continuity of such attraction. The point of the magnet may be in the form of a scroll or a circle, one or more portions of the point being removed and the gaps filled with non-magnetic material. The upper magnet comprises the detachable and adjustable rings a, b, c, the lifting points d, d" of the rings a, c being in the form of scrolls, having their turns in opposite directions, Fig. 2. The lifting points of the ring b are circular in form, provided with a gap filled with a non- magnetic material. Specification 105,354 is referred to.
Patent GB-137306-A (GB)
Title: Improvements in inner-tube protectors for pneumatic tires
IPC: B60C19/12
Filed: 1919-12-30
Abstract: 137,306. Blynt, H. S. June 6, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Jackets and covers.-A band of rubber, cork, felt, &c., fitted between the air tube 9 and the outer cover 8, is formed with tapered side portions 5 and normally re-entrant tread portion 6 which is stated to yield and assume the position shown in dotted lines when the outer cover is punctured, so as to prevent the puncturing instrument from reaching the inner tube.