baber/WOPTO huggingface dataset:
Patent GB-556798-A (GB)
Title: Improvements in and relating to frequency converters for wireless reception
IPC: H03D7/02
Filed: 1941-03-12
Abstract: 556,798. Valve circuits for wireless reception. BRITISH THOMSON-HOUSTON CO., Ltd. March 12, 1941, No. 3354. Convention date, March 12, 1940. [Class 40 (v)] A supersonic heterodyne receiver for ultra high frequencies comprises a standing wave line terminated by two of the electrodes of an electron discharge device across which is impressed a second wave of which a harmonic produces the intermediate frequency and is so related in frequency to the first wave that the line presents a high impedance to the second wave. Fig. 1 shows a half wave line 11, 12 fed from an aerial 10 and feeding a diode 13, preferably self resonant due to the inter-electrode capacity and lead inductance. The line is tuned by a bridge 17 and an oscillator 14 applies through transformer 19 the heterodyning frequency to which the line is approximately a quarter wavelength in length and so presents a high impedance. Condensers 21, 22 are included in the input circuits to prevent short circuiting of the intermediate frequency fed to the amplifier 15. Alternatively an open ended line of a quarter wavelength at signal frequency may be used, Fig. 2 (not shown) and the intermediate frequency amplifier be connected in parallel with the diode. Fig. 3 shows an arrangement in which a triode is used and separation of the intermediate frequency is obtained by connecting the amplifier 26 to the anode circuit. The discharge device may include screen and suppressor electrodes and the lines may be a multiple of a half or quarter wave in length.
Patent GB-1464893-A (GB)
Title: Tooth cleaning implement
IPC: A61C15/02
Filed: 1974-01-24
Abstract: 1464893 Toothpick S W BENGTSSON 24 Jan 1974 [2 Feb 1973] 3373/74 Heading A5R A hand operated tooth cleaning implement of flexible material comprises a handle portion at one end and an elongate operating portion at the opposite end, the operating portion having a substantially V-shaped transverse cross section defined by a pair of resilient side walls 10, 11 formed with roughened external surfaces, the side walls defining between them a flute of which the depth is a greater part of the height of the implement, said walls meeting at a ridge 14 and having smooth unroughened flat rear edges 15, 16 opposite said ridge, said rear edges extending over the length of the implement and the side walls tapering from the handle portion at one end to the other, operative end, and said ridge decreasing in height from said handle portion towards a tip 12, so that said side walls merge together, the tip being chisel shaped, being of greater height than width and being disposed in the longitudinal midplane of symmetry of the implement. The flexible material may be a synthetic resin.
Patent GB-1072381-A (GB)
Title: Coin operated mechanism
Inventor: SYKES MAURICE
IPC: G07F17/34
Filed: 1964-01-27
Abstract: 1,072,381. Chance apparatus. MARMATIC SALES Ltd. Jan. 25, 1965 [Jan. 27, 1964], No. 3461/64. Heading A6H. [Also in Division G4] A fruit machine comprises the usual wheels 11, bearing representations of fruit &c., and each wheel rotates with an apertured disc 30. A set of fingers 29 (one shown) bears on the discs, so that when the discs halt in a prize winning set of positions, one of the fingers 29 passes through aligned apertures in the discs, and operates the pay-out mechanism (see Division G4) to deliver the corresponding prize, each finger corresponding to one set of positions and one prize. In an alternative, the fruit &c., are displayed to the player by optical projection systems, the positions of which are detected mechanically, or by the completion of electrical circuits.
Patent GB-622154-A (GB)
Title: Improvements in and relating to the preparation of asphalt paving materials
IPC: E01C7/18
Filed: 1947-02-06
Abstract: An asphalt paving material comprises a substantial proportion of old asphalt paving of the type containing upwards of 25 per cent by weight of stone which has been crushed in a crusher of the impact type to yield a product having a maximum particle size of approximately 1/4 inch together with a proportion of freshly crushed stone or like aggregate of the like degree of subdivision and a proportion of fresh bitumen together with a flux, preferably creosote or anthracene, in an amount equal to 4 to 8 per cent of the total weight of bitumen.  Preferably the product contains not less than 65 per cent by weight of mineral matter other than sand. Specifications 393,454 and 456,922 are referred to.
Patent GB-1409535-A (GB)
Title: Shelf support member
IPC: A47B57/30
Filed: 1972-01-26
Abstract: 1409535 Shelving L W HANKS and W BAGLEY 26 Jan 1973 [26 Jan 1972] 3656/72 Heading A4B A support element for attachment to an L-section upright to support a corner of a shelf comprises a spring metal strip defining a pair of surfaces 2 and 5, 7 for face-to-face engagement with the respective inner faces of the limbs of the upright, each surface 2 and 5, 7 having a respective projection 3 and 6 and the projections 3, 6 being engageable selectively in corresponding apertures of a series of vertically spaced apertures formed in each limb of the upright. One projection 3 is pressed out of the strip and the other 6 comprises a tongue bent from the strip end. The support element is held in engagement with the apertures by the resilience of the strip.
Patent GB-233067-A (GB)
Title: Improvements in rollers for roving, spinning and like frames
IPC: D01H5/74
Filed: 1924-02-12
Abstract: 233,067. Spencer, Moulton, & Co., Ltd., G., and Proctor, D. M. Feb. 12,. 1924. Securing together machine elements for the transmission of rotary motion.-Rollers for roving, spinning, and like frames, are adjustably mounted on their axles and secured by means of a screw 5, which is screwed into an inclined hole in the boss and may be provided with a hardened ball or part-spherical part 6 that engages the bottom of a groove 7. The bush 3 is a sliding fit on the axle 4, or is screwed thereon.
Patent GB-953580-A (GB)
Title: Device on track-packing machines
IPC: E01B27/17
Filed: 1961-01-31
Abstract: 953,580. Railway track-packing machines. F. PLASSER, [trading as FRANZ PLASSER BAHNBAUMASCHINEN]. Jan. 31, 1961 [Feb. 16, 1960], No. 3705/61. Heading E1G. In a track-packing machine comprising a vertically adjustable packing tool carrier and a device for lifting the track a switch, controlled by the tool-carrier as it descends, permits operation of the track lifter as soon as the tools have penetrated into or beat against the ballast at a specified depth. The packing machine has packing tools of known type, which are vibrated by a rotating shaft and are moved towards or away from one another by hydraulic or other means Fig. 1 (not shown) mounted on a vertically adjustable carrier 2 at the front end of the machine. The tool carrier 2 is provided with an extension 13 which depresses a member 15 when the carrier 2 is lowered, to close a switch 14 in a circuit from a battery 16 to energize electromagnets and actuate valves 20, 21 in a pressure medium supply pipe 22 leading to the cylinder 9 of a track lifting device which lifts the track by means of a rail gripping device 12. A further switch 29, which may be operated arbitrarily or by a device supervising the track lift emitting a signal, enables the valve 20 to be closed to terminate the lifting of the track if the switch 14 is closed.
Patent GB-705388-A (GB)
Title: Improvements in and relating to control valves for fluids
IPC: F15B13/04
Filed: 1951-02-16
Abstract: 705,388. Fluid-pressure servomotors; fluidactuated valves. SELF-CHANGING GEAR CO., Ltd., and MILLER, A. A. Feb. 13, 1952 [Feb. 16, 1951], No. 3795/51. Class 135 A piston valve comprises a movable closure member 3 having a pair of interconnected pistons 4, 5 of different diameters reciprocable in a cylinder 2 having a stepped bore 7, 8, the space 26 enclosed by the cylinder between the step thereof and the larger piston 4 being constantly in communication with an outlet, so that any variation in the pressure at the port due to an initial movement of the member 3 causes a biasing force to be imposed on the member to urge it in the direction of the initial movement. The pistons control fluid supply and exhaust ports 9, 11 respectively, outlet ports 13 communicating with a fluid operated device, e.g. a servomotor. The cylinder is mounted in a housing 1 to which supply, exhaust and outlet lines 10, 12, 14 respectively, are connected. The valve is operable manually e.g. by levers or push-rods, or by pressure fluid in chambers 16 and 18, e.g. under the control of a governor or control device 30, as described in Specification 665,610. The annular area due to the difference in diameters of the pistons constitutes a biasing surface subject to the pressure in the space 26. Thus, when the closure member is being moved to connect the servomotor with the supply, piston 5 closes ports 11 and piston 4 opens ports 9, the increased pressure in space 26 causing the member 3 to snap to fully open position. Similarly, when moving the closure member in the opposite direction, piston 4 closes ports 9 and piston 5 opens ports 11, the biasing force thus being removed whereby a biasing spring 27 snaps the closure member to fully closed position to connect the servomotor to exhaust. The spring 27 may provide a force equal, e.g. to half the biasing force due to supply pressure on the annular area.
Patent GB-1535556-A (GB)
Title: Storage system for storing articles such as vehicles
IPC: E04H6/18
Filed: 1976-01-30
Abstract: 1535556 Storage systems R L MOYANO 30 Jan 1976 [30 Jan 1975] 03808/76 Heading B8W A storage system for vehicles comprises a plurality of columns 9 each of which has several levels for the reception and storage of vehicles, each such column 9 being movable towards a stationary elevator 5 from which a vehicle is transferred to the column. As shown in Fig. 2 each column 9 is movable relative to tracks in the floor of the system by means of a power carriage 10 which engages beneath and lifts a column and then runs along the tracks to position that column adjacent to the elevator 5. A transfer carriage, Figs. 3-5 (not shown), effects the transfer of a vehicle from a vehicle arrival/ departure zone (8), Fig. 1 (not shown), to the elevator 5, and from the elevator 5 to the adjacent column 9. The transfer carriage comprises a frame (12) whose wheels (13, 14) run on rails (15) disposed parallel to parallel strips 11 provided in the zone (8) in the elevator 5 and in the levels of the columns 9, the frame (12) carrying prongs (16) which are vertically movable between the strips (11) to raise a vehicle supported thereon. The power carriage 10 comprises lower and upper self-driven platforms (22, 23), Fig. 7 (not shown), the lower platform (22) being movable along tracks 26 in the floor while the upper platform (23) is movable on tracks provided on the top of the lower platform (22) and on tracks 30 formed on the floor of the system. The upper platform (23) is provided with rams (38) whose piston rods are engageable with concave elements (44) provided on the bottom surface of the lower storage level of the column 9 to be lifted. Automatic control means is provided for operating the elevator 5 and the transfer and power carriages. The power carriage 10 may be replaced by a bridge crane provided with flanges (45) which are engageable in wings (48) provided on the top of each column, Fig. 15 (not shown).
Patent GB-923934-A (GB)
Title: Improvements in wrapping machines
Inventor: BLAKELOCK WALLACE JOHN
IPC: B65B65/02
Filed: 1960-04-19
Abstract: 923,934. Wrapping-machines. FORGROVE MACHINERY CO. Ltd. April 19, 1961 [April 19, 1960], No. 3864/61. Divided out of 917,488. Class 94(1). [Also in Group XXIV] A wrapping machine of the type specified in the Specification 917,488 is characterized in that the crimping and cutting dies mounted on shafts 42, 43 have an adjustable variable speed drive to accommodate various article lengths such that, when in contact with the tube, the dies travel at approximately the tube speed, being decelerated as they contact the tube, and accelerated when crimping is completed. As shown, the two dies are driven by gears 44, 45, driven by a gear 46 angularly adjustable relative to gear 45 by means of a clamp and screw 48, 49. Drive from shaft 52 is transmitted by a chain 51 to a sprocket 55, on which is mounted an adjustable eccentric 54 fixedly carrying a gear 53. As the sprocket 55 rotates, it carries the eccentrically mounted gear 53 with it, a correct mesh in the train 53, 56, 46 being maintained by means of links 58, 59, and a cyclic accelerating and decelerating rotation is thereby imparted to the gears 44, 45 driving the dies.
Patent GB-456442-A (GB)
Title: Process for the manufacture of polymerised compounds
IPC: C08F36/04
Filed: 1935-02-06
Abstract: Polymerization products are manufactured by conjoint polymerization of a preponderating amount of a polymerizable organic compound containing a single --C=C-- double bond and a smaller amount, e.g. less than 12 per cent, of a polymerizable 1 : 3-diene.  Examples describe the polymerization of mixtures of: (1) acrylic acid and butadiene-1 : 3 (in emulsion in water containing the sodium salt of the hydrochloride of diethylaminoethoxyoleylanilide, by the action of hydrogen peroxide); (2) styrene and isoprene (by heating with benzoyl peroxide); (3) isopropenylmethyl ketone and 2-chlorobutadiene-1 : 3 (in emulsion in water containing isobutylnaphthalenesulphonic acid, by the action of benzoyl peroxide).  Reference is also made to polymerization by the action of light.  Other starting materials specified are: vinyl esters, vinyl ethers, acrylic esters and acrylic nitrile.
Patent GB-794457-A (GB)
Title: Improvements in or relating to stud welding
IPC: B23K9/20
Filed: 1956-02-08
Abstract: A fluxing material coated on a refractory ferrule for surrounding the end of the stud in stud welding comprises: aluminium powder 10 parts by weight, potassium oxalate 3 parts by weight, gold size 1 part by volume, mineral turpentine 3 1/2 parts by volume.  The gold size, which may be diluted with white hard spirit varnish, is dissolved in the turpentine and the aluminium and potassium oxalate are added thereto.  Alloying materials and cleansing agents, e.g. silicates, fluorides and titanates, may be added to the fluxing material. Specification 787,827 is referred to.
Patent GB-1428307-A (GB)
Title: Circuit board socket
IPC: H01R12/71
Filed: 1974-01-29
Abstract: 1428307 Two-part couplings B MOUISSIE 29 Jan 1974 [12 Feb 1973] 03993/74 Heading H2E A circuit board socket comprises a cylindrical body 12 open at both ends 14, 16 made of a material to which solder does not adhere and an M-shaped contact 18 positioned with its inner legs 20 within the body and its outer legs 24 without the body. The body 12 is moulded from PTFE and the assembled spring contact 18 and body are placed in a metal coated aperture in a printed circuit board (30, Fig. 3); solder is applied to the plating and outer legs 24. The inner legs 20 serve as contacts receiving a conductor (34) inserted between them.
Patent GB-1066101-A (GB)
Title: Nitrocellulose coating composition
IPC: C09D167/00
Filed: 1965-01-29
Abstract: An oxazole diester of the formula <FORM:1066101/C2/1> wherein R2 and R3 represent -CH2O.CO.CH2R1 groups and R1 represents a residue of tall oil acid (R1CH2CO2H), is prepared by heating 3 moles of tall oil acid with 1 mole of 2-amino-2-hydroxymethyl-1, 3-propane-diol.  This diester can be heated with paraformaldehyde to yield a compound of the formula <FORM:1066101/C2/2> wherein R1, R2 and R3 are as defined above.  An oxazole derivative of the formula <FORM:1066101/C2/3> wherein R2 and R3 represent -CH2OH groups and R1 represents a residue of soya acid (R1CH2CO2H), is prepared by heating soya fatty acid with 2-amino-2-hydroxymethyl-1,3-propane-diol. The isophthalic polyester of said derivative may be prepared by heating the latter in the presence of isophthalic acid and said polyester may be further heated with paraformaldehyde to add a vinyl group.ALSO:A nitrocellulose coating composition comprises nitrocellulose and a plasticizing proportion of an oxazoline designated A, B, C, D, E, F, G or H or mixtures thereof wherein A is an oxazoline represented by the formula <FORM:1066101/C3/1> wherein R1 is hydrogen or a saturated or unsaturated alkyl radical containing from 1 to about 20 carbon atoms and R2 and R3 are hydrogen, alkyl or alkylol radicals of from 1 to 5 carbon atoms or the radical <FORM:1066101/C3/2> B is an oxazoline represented by the formula <FORM:1066101/C3/3> wherein R1, R2 and R3 have the meanings previously described; C is a polymeric oxazoline reaction product obtained by partially polymerizing B by contact with air; D is an oxazoline reaction product obtained by reacting B with a compound having the terminal group <FORM:1066101/C3/4> is an oxazoline polyester reaction product obtained by reacting about one mole of a thermally stable dicarboxylic acid which does not readily form an anhydride with from about 1 to 2 moles of an oxazoline represented by the formula <FORM:1066101/C3/5> wherein R1 has the meaning previously described; F is an olefinic oxazoline reaction product obtained by reacting E with formaldehyde; G is an oxazoline reaction product obtained by reacting the reaction product described as F with a compound having a terminal group represented by the formula <FORM:1066101/C3/6> as set forth in describing the oxazoline reaction product D; H is a dioxazoline reaction product obtained by reacting about 1 mole of a dicarboxylic acid with about 2 moles of an oxazoline represented by the formula <FORM:1066101/C3/7> wherein R1, R2 and R3 have the meanings previously described, with the proviso that only one of the members R2 and R3 is an alkylol radical.
Patent GB-607581-A (GB)
Title: Improvements in or relating to mechanism for winding and paying out cables and the like
IPC: B65H75/38
Filed: 1946-02-08
Abstract: 607,581. Twin-drum winches. RATCLIFFE, J. T. Feb. 8, 1946, No. 4067. [Class 78 (v)] Winding apparatus includes a main cable drum 33, driving means, e.g. handle 16 with reduction gearing such as 18, 20, 22, 23, auxiliary cable drum 33a, and a ratchet device 61 between the drums for driving the auxiliary drum 33a unidirectionally and to an unlimited extent. In the embodiment spindle 19, Fig. 2, is driven from handle 16 through gear 18, freely-revoluble on spindle 19, gears 20, 22 formed integrally and freely revoluble on spindle 21, and gear 23 fixed on spindle 19. On spindle 19, Fig. 4, is fixed pinion 43 which engages internal ring gear 41 formed on drum 33 so as to drive the latter. The drum 33 is supported by rollers 35 on spindle 19, Fig. 4, and also by bearings 36, 38, mounted respectively on rods 37, 39 which are fixed between brackets 24, 30, Fig. 2. Rod 38 has eccentric end portion, Fig. 3, so that by turning the drum may be held without looseness. Flange member 46, Fig. 4, is adjustable on the drum to suit the length of rope which passes through oblique hole 49, Fig. 3, and is anchored by clamping plate 50. Drum 33a, Fig. 2, is mounted and driven similarly from spindle 19a. On spindle 19a is formed ratchet 52 co-operating with detent 53 and also plates 57, 59 and between the latter is ratchet 61, formed on spindle 19. Pawl 62, Fig. 5, which is pivoted on pin 58, which joins plates 57, 59 is resiliently pressed by arm 63 against ratchet 61 and so transmits the drive unidirectionally from spindle 19 to 19d. Ropes are wound in opposite directions on the drums. Action is as follows: if handle 16 is rotated clockwise, then rope 44 is wound on to drum 33 and, because detent 58 slides over ratchet 61, no motion is transmitted to drum 33a, which is consequently free to pay out the rope 44a when ratchet 52 is released. If handle 16 is rotated anti-clockwise then, when detent 28 is released, rope 44 pays out from drum 33 and, since the ratchet 61 now transmits the drive, rope 44a is wound on to drum 33a. Detents 53 and 28 respectively serve to hold the separate drums when they are pulling load and so prevent reversal of direction under tension. The winch is suitable for use with the vehicle with tipping ramp of Specification 497,216.
Patent GB-837622-A (GB)
Title: Extrusion handling equipment
Inventor: WORLIDGE RONALD FREDERICK
IPC: B21C35/02
Filed: 1957-02-07
Abstract: 837,622. Extruding. LOEWY ENGINEERING CO. Ltd. Jan. 17, 1958 [Feb. 7, 1957], No. 4197/57. Class 83 (4). Means for supporting an extruded product issuing from an extrusion press comprises a set of separate interconnected lightweight supporting elements 1 arranged so, as to be nested together for parking or moved away from each other to provide a number of spaced supporting points displaceable together at a speed substantially equal to that of the extruded product. The elements each comprise a light metal support 2, 4, 5 slidable along a guide track 19 on a support 8 and having a supporting surface 3 of heat-resistant material, preferably having an asbestos base. The legs 4, 5 of the elements enable them to be nested. The guide track runs downwardly at 13 into a parking space for the elements. The elements are each connected at 11 to a pair of cables 12 which are also connected to a pulling mechanism 14, preferably of the kind described in Specifications 837,623 and 837,624; the cables are driven by a constant tension mechanism of the kind described in Specification 837,621. When the elements are nested the cables form loops 12A. Alternatively the elements may be connected together by a collapsible linkage.