baber/WOPTO huggingface dataset:
Patent GB-1523221-A (GB)
Title: Bins
IPC: B65F1/16
Filed: 1976-03-06
Abstract: 1523221 Refuse bins AIRFIX PLASTICS Ltd 31 March 1976 [6 March 1976] 09090/76 Heading A4A [Also in Division E2 ] A bin is provided with a lid 14 arranged to open and close an aperture affording access to the bin interior, the lid being hinged for movement between the open and closed positions, there being means 34 for moving the lid and holding it in the closed position, a catch 34, 40 for holding the lid in the open position Fig. 1, (not shown), and means 48 for disengaging the catch to allow the lid to reclose. As shown, the lid 14 closes an aperture in the inclined surface of a removable top 12 which covers the bin container 10. The lid is pivoted at 26 to the top 12 and has a lever arm 30 carrying a piece of mild steel 34 whose weight biases the lid to the closed position. A magnet 40 holds the steel 34 to retain the lid open and the button 48 when pressed releases the steel from the magnet. In a further embodiment Fig. 4, (not shown) a projection (54) provides the catch to hold the lid open or, alternatively, it is stated that an area of adhesive may constitute the catch. It is also stated that a spring may be arranged so that it closes the lid.
Patent GB-698171-A (GB)
Title: Improvements in photographic enlargers
IPC: G03B27/36
Filed: 1948-03-31
Abstract: 698,171. Photographic enlargers. DANEK, J. April 29, 1949 [March 31, 1948], No. 9092/48. Class 98 (i). In a photographic enlarger comprising a movable lamp house assembly, automatic focusing is effected by a rotary cam carried on said assembly and driven from a drum, which is rotatably mounted on the lamphouse assembly and on to which is wound one end of a steel tape or other flexible member whose other end is anchored to a stationary part and the flexible member is held under tension by spring means which tend to rotate the drum. In the form shown, the lamphouse assembly comprises a lamphouse 4, a transparency carrier 5 and a carrier 6 for an objective 7 and is carried by a bracket 3 which is movable along a vertical support 2 on a base 1 by rotation of a hand wheel 11 connected with a friction roller 10 which is carried by the bracket 3 and engages the support 2. The weight of the assembly is supported by a steel tape 12 which is anchored to an adjusting screw 26 on the support 2 and is wound on to a drum 13, which is rotatably mounted on the bracket 3 and is spring urged in a direction to maintain the tape 12 under tension. Reduction gearing connects the drum 13 with a cam 17, which is coaxial with drum 13. Resting on the periphery of cam 17 is a roller 18 carried by a lever 19, which is pivoted at 20 on the bracket 3 and has a roller 21 in contact with a flange 22, which projects from the objective carrier 6 and is slidable on a guide 8 carried by the bracket 3, a spring 23 being interposed between the flange and a fixed part and a screw 24 being provided for vertical movement of the flange under manual control to provide a fine focusing adjustment. In use, light-sensitive material is placed on an easel 27 and, if the degree of enlargement is to be increased, the lamphouse assembly is raised so that the drum 13 is rotated counter-clockwise by its spring and causes the cam 17 to rotate in the same direction and thereby lift the lever 19 and the lens carrier 6 against the action of the spring 23 to maintain the lens 7 in focus. Downward movement of the assembly causes the drum 13 and the cam 17 to rotate in the opposite direction. In order to allow of the easel 27 being raised to various levels, the height of the anchorage point of the steel tape is adjustable by the screws 26. The objective is readily removable from the carrier 6 and, if several interchangeable lenses are to be used, the cam 17 is made easily removable for replacement by a cam having a periphery suited to the lens to be used, or the cams corresponding to the different lenses may be made slidable on a common shaft so that the required cam may be brought into operative position easily. In another modification, the lamphouse assembly may be moved in a direction parallel to the generator of the cone of projection so that one edge of the projected image remains stationary.
Patent GB-273032-A (GB)
Title: Improvements relating to cleaning devices for travelling grates for furnaces
IPC: F23H15/00
Filed: 1926-04-07
Abstract: 273,032. Steinm³ller, L. April 7, 1926. Grates. - A cleaning device for travelling grates consists of a bar h, Fig. 1, adapted to strike against the grate bars f at intervals and given an axial reciprocatory motion so as to set up a shaking motion of the grate bars. The bar h is mounted on a pair of double levers a pivoted on universal joints b, c and provided with a pin i which is held against cam surfaces on a rotating wheel k by a spring d, so that the bar h is given a reciprocating motion. The grate bars f engage a roller e on the lever a and force the lever back against the action of the spring d. As the grate bars pass the roller, the lever is released and the bar h strikes the grate bars and serves with its reciprocatory motion to clear the ashes &c. The bar h may be so actuated that the grate bars are not forcibly struck. A curved disc mounted on the spindle of the grate drum g may be employed to engage with the roller e and force back the lever a. A modified form of the cleaning device comprises a reciprocating rod t, Fig. 4, on which are mounted members u resting against the grate bars f. Projections v, w on the members u and rod t respectively allow a limited oscillatory movement of the members. The rod t is provided at one end with a screw thread adapted to engage with a thread in an oscillating arm driven from the grate driving mechanism or directly so as to give to the rod t a reciprocating motion.
Patent GB-351416-A (GB)
Title: Improvements in or relating to pressure-tight doors for tanks
IPC: A61L2/06
Filed: 1930-03-22
Abstract: 351,416. Disinfecting -chambers. GILES, R. A. BOUCHER-, 73, Gt. Hampton Street, Birmingham. March 22, 1930, No. 9190. [Class 81 (i).] A tank for steam-sterilizing dairy utensils is closed by double doors 1, 1a, having an inwardlydirected edge 8 engaging a rubber packing strip 4. The strip 4 is secured between an angle-iron 3 secured to the tank wall, and another angle-iron 5 secured to the flange 3a of the angle-iron 3, so that a sealing strip of rubber is exposed at the bottom of an annular channel. The meeting edges of the doors 1, 1a are made tight by a rubber packing strip. The doors are secured by bars 11 engaging slots 13, 15 at the two sides of the tank.
Patent GB-1150617-A (GB)
Title: Improvements in Castors
Inventor: TOOTH ARTHUR CECIL
IPC: B60B33/00
Filed: 1967-02-27
Abstract: 1,150,617. Castors. FLEXELLO CASTORS & WHEELS Ltd. 27 Feb., 1968 [27 Feb., 1967], No. 9215/67. Heading A4U. A castor horn comprises separable legs 1, 2 injection moulded in thermoplastic resin material and having semi-cylindrical parts 3 which are recessed at 15 to receive a ball race 16 for a swivel stem carried by or insertable into an article of furniture, the legs being maintained in assembled relation by a cap 15 fitted over the parts 3 and a headed bolt 11 passed through bores 8 in bosses 7 and through a bearing spindle 9 for the castor wheel. In a modification, inserting parts are provided on the parts 3.
Patent GB-313672-A (GB)
Title: Winding and tensioning device for paper, fabric or the like running from stock rollsto collecting rolls
IPC: B65H18/10
Filed: 1928-03-28
Abstract: 313,672. Post, O. March 28, 1928. Winding webs. - In apparatus for winding a web of paper, cloth, or other material from one roll to another, and particularly for winding a paper web being printed in a typewriter, the supply roll and collecting roll are connected by a train of gearing including one or more springs which compensate for the varying angular velocities of the rolls as their diameters vary and thus keep the tension of the web substantially constant. In one form, Fig. 1, the shafts c, d of the rolls are directly connected by gears g', h'. The gear h<1> is fast on the shaft d and the gear g<1> is loose on the shaft c but connected thereto by a spring k. In another form, the shafts c, d are connected by a belt passing over pulleys loose upon the shafts and connected thereto by springs. In another form, Fig. 3, the rolls are engaged by friction discs n, p on shafts m, o having fast gears g<3>, h<3> engaging respectively a fast gear r on a shaft s and a gear q loose on the shaft s and connected thereto by a spring k. In a further form, coil springs are used instead of flat spiral springs.
Patent GB-146638-A (GB)
Title: Improvements relating to rotary printing presses
IPC: B41F13/00
Filed: 1919-04-12
Abstract: 146,638. Terrey, A., and Butler, J. H. April 12, 1919. Driving rotary machines.-A rotary press having a plurality of sets of printing mechanisms is driven by a number of transmission shafts each driving a number of sets by a worm or worms engaging one or more of the rotary elements in each set, the transmission shafts being separately driven by motors a and geared together to rotate uniformly, or one of these shafts being driven by a motor and the others driven by gearing from it. Fig. 1 shows a multi-deck machine in which the printing and impression cylinders e, f, ink-distributing drum g and fountain roll h of the two sets on each deck are driven by worms c on a transmission shaft b driven by a separate motor, and the shafts bare geared together by a vertical shaft and bevel gear. One only of the shafts b may be driven by a motor and the others driven from it by a chain. The machine may be arranged with the decks other than superposed, and the transmission shafts may be arranged vertically between the sets, a worm thereon driving a rotary element in each of two sets. The worm drives a worm-wheel or a helical toothed wheel, and motion may be transmitted from the worm-driven wheel to other rotary elements in a set by spur, helical or other gear.
Patent GB-1500011-A (GB)
Title: Method for the dilignification of lignocellulosic materia
IPC: D21C3/00
Filed: 1975-03-06
Abstract: 1500011 Delignifying lignocellulosic material MO OCH DOMSJO AB 6 March 1975 [14 March 1974] 9446/75 Headings DIP and D2W In a method for the delignification of lignocellulosic material of low manganese content which comprises treating the material with a gas containing molecular oxygen at an oxygen pressure or partial pressure of at least one bar and with an alkali at a pH, which during the major part of the delignification is 6.5-11, at least a part of the delignification is carried out in the presence of an added manganese compound. The lignocellulosic material may be subjected to pre-treatment, for example, with hot water, an aqueous acidic solution or an aqueous solution of a complexing agent to remove deleterious metal compounds prior to the oxygen-alkali delignification process. Specified acids include sulphurous acid, hydrochloric acid, sulphonic acid, nitric acid, phosphoric acid, and organic acids. Specified complexing agents include phosphates, aminopolycarboxylic acids, or salts thereof, and amines. In the pretreatment of wood chips, a basic compound such as sodium hydroxide, or sodium carbonate or bicarbonate, may be included in the pretreatment liquid. The pre-treated material is preferably washed prior to delignification. The temperature during the major part of the delignification process is preferably maintained at 100-170C. The manganese compound added may be an oxide or hydroxide, salt, or complex thereof. Subsequent to delignification, the pulp may be treated with sulphuric acid to remove residual manganese compounds. The manganese compound is preferably added prior to or during an early stage of the delignification process. Delignification may be effected in the presence of an added magnesium compound. The lignocellulosic material treated may be wood chips, wood pulp, saw dust, straw, bagasse, or jute. The delignified material may be bleached in accordance with known methods.
Patent GB-223803-A (GB)
Title: Improvements in or relating to the bending of tubes
IPC: B21D9/07
Filed: 1924-02-05
Abstract: 223,803. Smallwood, A. Feb. 5, 1924. Angular bending; mandrels.-In a tube bending machine of the type in which one end of the tube is clamped to a former around which the tube is bent by a rotatable member having a guide for maintaining the unbent portion of the tube tangential to the curve of the former and an internal mandrel maintained at the point of bending, the form of bending device used consists of a longitudinally grooved block held tangential to the curve of the former by a roller on the bending member, which moves over the block to exert radial pressure thereby on the tube. The tube 22 is secured by a grooved block 24 operated by an eccentric 28 to a stationary grooved former 20. Bending is effected by a grooved block 34 which is swung about its tangential point by a radially adjustable roller 31 carried by an arm 29 which is swung about the pivot 43. The internal mandrel 37 is secured by a pin 39 to the guide arm 35 which is rigidly fixed to the arm 29 so that the curved nose 38 is at the point of bend. The arms may be operated by hand through a rod 42 or by power through a pinion and a quadrant rack on the pivot 43, an adjustable stop being provided in the latter case to determine the angle of bend.
Patent GB-253280-A (GB)
Title: Improvements in theatre and like chairs
IPC: A47C7/56
Filed: 1925-04-09
Abstract: 253,280. Vinegrad, C. April 9, 1925. Sliding seats; folding seats.-In a chair of the kind having a seat member adapted to tip up and also to have a sliding movement, the sides of the seat member B are provided with slots b, b<1> within which studs or rollers D, D', mounted on the inside faces of the chair frame A, A', are adapted to engage. Rollers F, F<1> may be provided to support the front of the seat member.
Patent GB-1174976-A (GB)
Title: Inking Apparatus for a Price Marker
IPC: B41K3/60
Filed: 1967-02-28
Abstract: 1,174,976. Marking device; inking apparatus. KWIKMRK Inc. 28 Feb., 1967 [5 Aug., 1966], No. 9471/67. Heading B6C; A marking device and associated inking apparatus comprises a marking head, an inking roller movable into and out of contact with printing elements carried on the head, a rotary ink supply device mounted in the path of movement of the inking roller and means for accurately locating the rotary ink supply device with respect to the inking roller. Fig. 2 illustrates a device, e.g. for marking cans in which a marking head 8 carrying printing elements 12 on belts 10 is vertically reciprocated by a solenoid device (14) (Fig. 1, not shown). An inking roller 16 is mounted on a shaft 18 between a pair of arms 20 pivoted at 22 to the main frame 6; studs 28 mounted on plates (26) attached to the head 8 ride in vertical slots 30 in the frame 6 and in curved slots 34 in the arms 20; thus as the head reciprocates vertically, the inking roller 16 oscillates between the full- and broken-line positions in Fig. 2. In the latter position it contacts an absorbent ink supply roller 36 which is continuously rotated on shaft 38 by a reduction geared motor (56) (Fig. 3, not shown). The roller 36 is carried on a mount 42 which can be removed completely from the marking device and positioned above a separate ink reservoir for recharging the ink Figs. 4 and 5 (not shown). The mount 42 has a rear wall 44 carrying a threaded stud 46 which projects through a slot 48 in the rear wall 50 of the frame 6 and is adjustably secured by a wing nut 52; precise positioning is obtained by abutting the mount 42 against the underside 66 of a bracket 60 which is itself vertically adjustable in the frame 6 by means of threaded bolts 62 lying in slots (64), Fig. 3 (not shown) in the bracket 60.
Patent GB-1284961-A (GB)
Title: Process for the manufacture of polyisoprene
IPC: C08F2/00
Filed: 1970-02-26
Abstract: 1284961 Organotin hydride containing isoprene polymerization catalyst KURARAY CO Ltd 26 Feb 1970 [1 March 1969 13 Aug 1969] 9475/70 Heading C3P Isoprene is polymerized in the presence of (a) TiCl 4 , (b) an organotin hydride, and (c) AlI 3  or AlBr 3  as catalyst. In examples (b) is (n-C 4 H 9 ) 3 SnH, (C 2 H 5 ) 3 SnH or (n-C 4 H 9 ) 2 SnH 2 .
Patent GB-911507-A (GB)
Title: Improvements in or relating to hydraulic ram equipment
Inventor: WALLACE JOHN FREDERICK
IPC: F15B15/14
Filed: 1960-03-18
Abstract: 911,507. Hydraulic apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 20, 1961 [March 18, 1960], No. 9586/60. Class 69 (2). [Also in Group XXVI] A double-acting hydraulic jack comprises a ram 1, Fig. 1, having a piston 13 which is a clearance fit in the bore of the cylinder 2 of the jack and is constrained to follow the general movement of the ram in either direction but is not constrained to remain concentric with respect to the axis of the ram. The ram is formed with a reduced portion 9 which receives the piston 13 and is screw-threaded for a locknut 6, the piston being less in length than the length between shoulders 11, 12 on the ram and lock-nut, respectively. The reduced portion 9 has a clearance of, say, 0.02 inch with the piston which, in turn, has a clearance of, say, 0.004 inch with the cylinder. A pair of rubber or like rings 15 resiliently support the piston on the reduced portion 9. When a pair of jacks are used in a draw-bench such as described in Specification 911,508, draw-bars 3 are secured to each ram by the lock-nuts 6. Fluid pressure from a connection common to both ends of the cylinder acts on both faces of the piston to effect relative movement therebetween, fluid being displaced from the ram side of the piston through the common connection and the pressure being balanced on the two sides of the piston. Relative movement in the opposite direction is effected by connecting the side of the piston remote from the ram to exhaust, the flow of fluid through the clearance between the piston and cylinder causing a pressure drop across the piston to effect the relative movement. In a similar embodiment, two pistons are mounted on the reduced portion of the ram. In another embodiment, the piston 19, Fig. 3, is connected to the ram 18 by a chain 20 and in one direction of movement, the piston abuts a surface 22, and in the opposite direction, the chain constrains the ram to move with the piston. In a further embodiment, the piston is mounted resiliently or with clearance on a stud screwed into the end of the ram. The cylinder of the jack may be formed of sections 2A, 2B having flanges 48 clamped together by bolts 49, seals 51 being provided at the joins. The jack may be constructed as a press and have a cylinder 55, Fig. 11, of concrete reinforced by hoops 56 and bars 57 which are secured to the frame 60 of the press. The piston 53, which is a clearance fit in the cylinder, is mounted with limited axial and radial freedom on the ram 52 by pins 54.
Patent GB-234955-A (GB)
Title: A scoop device for removing sediment from the surface of liquids and for other culinary or like purposes
IPC: A47J43/28
Filed: 1924-04-15
Abstract: 234,955. Griffith, E. M. B. April 15, 1924. Strainers; cutting slices. - A scoop for skimming the surface of soups, milk, jam or the like consists of a substantially semi-cylindrical vessel a the flat side b being provided with a sharp top f whereby the device is adapted for slicing eggs or vegetables. The scoop may be provided with graduations to adapt it for use as a measuring-vessel, or perforations may be provided in the side b to allow the thinner liquid skimmed from the soup &c. to drain away. A handle d is provided to enable the scoop to be hung on the rim of a vessel, and the corners c are rounded to permit of good pouring. The flat side b may be separate from and secured to, or integral with, the semicylindrical portion.
Patent GB-593684-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J17/48
Filed: 1944-05-19
Abstract: 593,684. Thermionic valves and circuits. NATIONAL CASH REGISTER CO. May 19, 1944, No. 9737. Convention date, March 28, 1941. [Classes 39 (i) and 40 (v)] A gas-filled electron discharge device to take the place of a ring of single gaseous discharge devices in an accumulator for counting or automatically producing high-frequency impulses, comprises a single cathode 14, Fig. 3, a number of anodes 15 ... 19, a corresponding number of sector-shaped control grids 28 each enclosing an anode with an opening towards the cathode, a single rod-like electrode 50 between each anode and the cathode and in the region of densest ionisation, and a shielding electrode 32 opposite the adjacent sides of the control grids. All the electrodes are mounted between mica discs 12, 13, Fig. 2 (not shown), so as to form with the control electrodes an enclosure for each anode. The anodes are mounted centrally on rods 20, 21 by means of ceramic spacer sleeves, and the shielding electrodes 32 are carried by rings 35 at top and bottom. In a modification, Fig. 5 (not shown), the anodes are enclosed in sector-shaped shields which are grounded, along with a control grid in the form of an inverted U -shaped wire and a rod-shaped electrode. A further modification is shown in Fig. 11, in which each anode 222 is of trough shape and is enclosed in a. sectorshaped shield 210, at earth potential. At the openings of the shields opposite the single cathode 200, is a rod-shaped control electrode 232, and another electrode 234 in the confines of the anode. The anode, as shown in Fig. 12, is coated on the outside and partly on the inside with glass or ceramic material 227 leaving the edge bare. By this arrangement it is stated that control of the discharge is entirely by the electrodes 232, while the electrodes 234 function to collect positive charges produced by the ionisation during the discharge. In the circuit arrangement, Fig. 4, the control electrode 52 of each section is connected over resistances 72, 74 to a current tapping electrode 50 of another section. The electrode 50 is maintained normally at a low potential due to the negative bias applied at terminal 71, but upon a discharge occurring in the section associated with anode 15, the electrode potential is raised, priming the control electrode 52. By depressing key 76, temporarily, the ring is brought to a normal state, the potential of control electrode 28 being raised and a discharge to anode 15 initiated. A positive pulse, applied at terminal 90, is fed to the control electrodes of all the sections, causing only the section associated with control electrode 52 to fire, thus priming the next section. The drop in anode potential due to the flow of current causes a fall in potential of all the other anodes over connection 82, extinguishing the conducting section. The ring may also be used as a pulse generator. Specification 593,682, [Group XIX], is referred to.