baber/WOPTO huggingface dataset:
Patent GB-295120-A (GB)
Title: Improvements relating to apparatus for retarding and controlling waggons
IPC: B61K7/00
Filed: 1927-07-22
Abstract: 295,120. Norton, B. July 22, 1927. Frictional apparatus on permanent way, energy-absorbing elements. - Apparatus for re tarding or controlling wagons descending a slop ing track under gravity comprises all endless carrier 3 moved by the momentum of the wagons which engage projections 6 on it, the movement of the carrier being controlled by braking means having a moving member actuated by the carrier and arranged to force a liquid through a constricted aperture. The size of the aperture may be regulated to vary the braking effect. The retarding device may be a piston in a cylinder a rotary pump or a turbine. The carrier is supported on two sprocket wheels 4, 5 one of which is connected by a crank 9 to the guiding piston 10, Fig. 2, of a cylinder 12 containing oil. The piston 10 is connected by a rod 19 to a piston 18 moving within the cylinder 12 supplied with oil by non-return valves 16 from reservoirs 14. A pipe 22 connects the two ends of the cylinder and a valve 23 regulates the resistance to the passage of the oil between the ends of the cylinder and so the braking effect. This valve may be controlled by a centrifugal governor driven by bevel gearing from the sprocket wheel 4. In the modification of the invention in which a pump is geared to rotate the sprocket 4, the pump comprises an inner and an outer rotor rotating in a clockwise direction within a casing and pumping water through a circuit containing a regulating valve and a reservoir. In an arrangement for filling wagons from overhead hoppers the braking-device consists of two cylinders arranged to operate on cranks at right-angles to one another in order to obtain smooth working.
Patent GB-1016172-A (GB)
Title: Improvements in or relating to the processing of cloth
IPC: D06B17/02
Filed: 1962-05-21
Abstract: 1,016,172. Liquid treating cloth. SANDO IRON WORKS CO. Ltd. May 21,1962 [May 20, 1961; Dec. 23,1961], No. 19520/62. Heading D1L. [Also in Division F2] Cloth a after being washed, saturated by a fluid e.g. scouring and bleaching fluid in a tank b, mangled at c and steamed is piled by a pair of oscillating rollers 12 on to one of a number of pairs of supports 6 carried by and between endless chains 3; the chains are intermittently moved, by rotation of their supporting sprockets 2, through a distance equal to the separation of adjacent pairs of supports so that the vertical series of piles of cloth is indexed downwardly and at each shift the lowermost pile is dropped into treatment fluid or water before being led away about a roller 14. The supports 6 are hinged on the chains 3 so that in the upward run of the chairs they fold into a vertical position. The chairs also carry side wall portions 7 so that the piled cloth does not contact stationary members.
Patent GB-572184-A (GB)
Title: Improved device for use in tying parcels and the like
IPC: B65D63/14
Filed: 1944-09-13
Abstract: 572,184. String fastenings. BROADHURST, C. J. Sept. 13, 1944, No. 19530/43. [Class 44] A device for securing parcel string and the like comprises a base A having a flat coil spring C secured thereto by a hollow rivet or eyelet B. The base also has an additional hole D in which one end of the string E is anchored as by a knot or tag. After passing round the parcel or other article the other end of the string is threaded up through the rivet B and is then gripped between the spring C and base A. To facilitate passing the string into place under the spring, the free end of the spring may be upturned or extend beyond the edge of the base-plate. The base A may be of rigid material such as metal or millboard or wood or may be of flexible material such as canvas, webbing, or rubber, in which case a washer may be provided under the spring on either side of the base.
Patent GB-1470412-A (GB)
Title: Polyurethane compositions
IPC: C08G18/71
Filed: 1974-03-21
Abstract: 1470412 Stabilizing polyurethanes AMERICAN CYANAMID CO 21 March 1974 [9 April 1973] 19627/76 Divided out of 1470411 Heading C3R Polyurethanes are stabilized against the deteriorative effects of u.v. light and nitrogen oxides by having intimately admixed therewith an aliphatic or cycloaliphatic mono- or diisocyanate, the polyurethane being the product of the chain extension with water of a prepolymer prepared by reacting a polyether or polyester polyol with an aromatic diisocyanate. The stabilizing isocyanate may be incorporated by adding it to the prepolymer prior to emulsification in water or to the emulsion itself. Preferred amounts of stabilizing isocyanate are 0À1 to 5% based on the weight of the prepolymer. Suitable stabilizers are methylene bis-(4-oyclohexyl isocyanate), cyclohexyl isocyanate and butyl isocyanate. The polyurethane may also contain a u.v. light absorber and an antioxidant.
Patent GB-127783-A (GB)
Title: Revolving Screen and Separator.
Inventor: THOMPSON JOHN
IPC: B07B1/18
Filed: 1918-11-29
Abstract: 127,783. Thompson, J. Nov. 29, 1918. Rotary sieves. - A cylindrical screen is divided into longitudinal sections by wheels B, C, D fixed to a rotating shaft, and into radial sections by imperforate plates F that extend from the shaft to the periphery of the screen and carry inclined vanes G serving to propel the material along the screen. The plates F are bolted to the arms of the wheels, and the wheel A at the feeding end has its arms formed with lips P that act to feed the material into the screen. The sections of the screen are of different mesh and deliver into separate hoppers; they are secured to the peripheries of the wheels and to the edges of the plates F by straps R.
Patent GB-762954-A (GB)
Title: Automatically balanced network measuring system incorporating transitor amplification
IPC: G01R31/26
Filed: 1953-07-16
Abstract: 762,954. Electric indicating systems. FOXBORO CO. July 16, 1953 [July 16, 1952], No. 19776/53. Class 40 (1). [Also in Groups XXXV and XXXVI] . In an automatically balanced bridge measuring system incorporating transistor amplification of the kind described in Specification 738,343, the oscillatory source of 1000 c.p.s. energization for the measuring bridge and phase detection circuit is replaced by 120 c.p.s. energization derived from a supply system 16, which also provides positive and negative bias voltages for the several transistors. Mains A.C. at 60 c.p.s. is supplied across a centre-tapped voltage divider 22 to a pair of dry rectifiers 28, 30 whose opposite terminals are returned to point 32, between which and the centre of the voltage divider is developed a negative voltage pulsating at 120 c.p.s. This is smoothed by winding 34 of an inductor transformer 36 parallel tuned to the ripple frequency by capacitor 58 and followed by resistance capacitance filter 38, 50, 52 and a potential divider 48 centre-tapped to earth, the negative end 40 of which supplies bias to the collector electrodes of the transistors 70,71, 71A, 90 while the positive end 44 supplies positive bias to the emitter electrodes. Secondary windings 54, 56 of the inductor transformer respectively supply energization at 120 c.p.s. to the measuring bridge 4 and a similar comparison signal to the phase detecting circuit 93.
Patent GB-804054-A (GB)
Title: Filaments of high density, high molecular weight ethylene polymers and method of making such filaments
IPC: D01D5/12
Filed: 1956-06-26
Abstract: A composition consisting essentially of an ethylene polymer having a density of at least 0.94 is formed into filaments at a melting temperature above 125 DEG  C. and the filamentary products are stretched 5-10 times their original length per unit weight, without rupture, at a temperature between 55 DEG  C. and 5 DEG  C. below the melting point of the polymer; the stretched products are then cooled. The polymers used, which are referred to as "ultrathenes," are produced by bringing ethylene gas into contact with such catalysts as chromium oxide or silicated alumina, hexavalent molybdenum compounds, charcoal-supported nickel-cobalt, certain metal alkyls (especially those of Al, Be, Ga, In, Zn, Mg, Na, Li and K) and mixtures of such alkyls with titanium tetrachloride.  The composition may contain minor amounts of colouring agents, antioxidants and other stabilizers. Specification 472,051 is referred to.  Reference has been directed by the Comptroller to Specification 784,920.
Patent GB-586654-A (GB)
Title: An improved beehive
IPC: A01K47/00
Filed: 1944-10-13
Abstract: 586,654. Bee-hives. WREN, D. K. Oct. 13, 1944, No. 19839. [Class 5 (ii)] A beehive comprises one or more chambers placed end to end, each symmetrical and reversible about a central plane, an apertured screen being placed at each end of each chamber. Frames consist of flanged rings with a wax foundation 23 clamped between them. If a synthetic resin is used the rings and foundation may be formed as an integer. Sector-shaped section boxes 28 may be fitted within each flange, each box being formed from a strip of thin wood or synthetic material. An axial nut and bolt with washers may hold the assembly together. Such frames are mounted within chambers, Fig. 7, the upper half of which is removable from or hinged to the lower half. Recessed. longitudinal racks 40 are mounted in the base and sides of the lower part of the chamber. A resilient strip 45 in the upper part prevents movement. To each end of the chamber is fixed a plate having two sectorshaped openings, and pivoted on each end-plate is a disc, Fig. 11, having sector-shaped openings 58 and apertures 52, 54, 56 of differing size. Several chambers arranged in series to form a hive are closed at each end by plates containing only flight and ventilation holes. The chambers may be of rectangular section, and instead of rotary end plates, interchangeable plates may be provided.
Patent GB-386345-A (GB)
Title: Improvements in electric burglar alarms and the like
IPC: G08B13/22
Filed: 1931-07-10
Abstract: 386,345. Clockwork actuation of switches. TIBBLES, H. J., Brodsworth, Blenheim Crescent, Leigh-on-Sea, TIBBLES, H. C., 68, Alderbrook Road, and RELY-A-BELL BUR. GLAR & FIRE ALARM CO., Ltd., 49A, Wilson Street, Fins bury Square, both in London. July 10, 1931, No. 19930. [Class 38 (v).] A timing mechanism for switches 51, 75 consists of an arm 60 mounted on a shaft 61 and moved by a handle 64 to stress a spring 62, a pawl 65 connecting the arm to a wheel of the train of gearing of the mechanism. Mounted on the shaft 61 is a bell-crank lever 66, 68, the arm 66 carrying a plate 67 to bridge a switch 51. The arm 68 coacts with a pin 69 on the arm 60, while an arm 70 of a second bell crank 70, 72 pivoted at 71 also coacts with the pin 69. The arm 72 engages the first bell crank, a spring 73 connecting the two bell cranks. Mounted on the arm 70 is a bridge 74 for a switch 75 arranged in series with a signal lamp 76. When the relay 27 is energized and the timing mechanism set in operation, the arm 60 is moved at a rate controlled by the train of gearing and the escapement wheel 59, and the pin 69 presses against the arm 70 to rotate the bell crank 70, 72 so as to close the switch 75. When the arm 72 has moved clear of the surface 78, the bell crank 66, 68 is tripped by the spring 73 and the switch 51 is thus opened, the audible signal 48 being rendered inoperative while the circuit for the visible signal 76 is closed at switch 75. An alternative form of timing device of a similar kind is described.
Patent GB-147880-A (GB)
Title: Improvements in and relating to pipe joints
IPC: F16L23/06
Filed: 1920-07-09
Abstract: 147,880. Krõmer, R. Sept. 13, 1916, [Convention date]. Butt joints. - In joints for thin sheet-metal pipes, of the type in which a metal strap with an annular groove is tightened over the abutting flanges of the pipes to be joined, the strap b is made of a flexible strip of sheet-metal with a stamped tapering groove c, the strap when tightened over the flanges a adapting itself to any irregularities in the flanges. The strap b may consist of a single piece or of two or more pieces hinged together, and is provided at its free ends with lugs d and e. Eye-bolts g, the length of which are adjustable by means of the nuts h, pass through the lugs d. In the form shown in Figs. 1 and 2, two levers i are hinged to the eyes of the bolts g and set against the other lugs e by means of links l. The strap is tightened to seal the joint by pressing the levers i to the position against the periphery of the strap, as indicated by the dotted lines. In a modification the ends of the levers, instead of being attached to the eye-bolts g, may be set against the lugs e and the links l hinged to the eye-bolts. According to another modification, Fig. 7, the lugs are forced together by a lever i having members m, n, and the chain-links o dropped over the projections e. The lever i and the members m, n may then be removed.
Patent GB-147918-A (GB)
Title: Improvements in or relating to methods of making boots or shoes
IPC: A43D3/02
Filed: 1920-07-09
Abstract: 147,918. British United Shoe Machinery Co., (Assignees of Cavanagh, J.). Dec. 9, 1914, [Convention date]. Lasting, methods of.-A method of lasting consists in moulding one or both ends of the upper to substantially the final form, assembling it and an insole on a longitudinally-extensible last, and extending the last to further shape the upper. As shown, an upper moulded at the toe and heel is assembled on a last 6, tacks 22 at the tip line securing the toe portion to the last. The heel portion of the insole may be left outside until the last is extended, and then tucked under the heel seat flange; or the insole may be tucked under at both ends before the last is extended and buckle upwardly at the shank. The rear part of the last has a handle 12 for rotating a pinion 9 gearing with a rack pivoted to the fore part of the last. The last is extended by the handle 12, and the shoe soled and finished as usual; the last is then shortened and removed.
Patent GB-1069901-A (GB)
Title: Improvements relating to roof supports for mine workings
IPC: E21D15/58
Filed: 1964-05-14
Abstract: 1,069,901. Advancing mine roof supports. K.M. GROETSCHEL. May 14, 1964 [Aug.29, 1963], No. 20045/64. Addition to 1, 037. 915. Heading F1P. An advancing mine roof support as disclosed In Specification 1, 037, 915 is provided with a load indicating device or strain gauge comprising a pointer X29 fixed to the roof and an associated scale X30. For practical details of the load indicating device Figs. 5-8 (not shown) should be referred to whilst Figs. 9 and 10 (not shown) disclose an arrangement applicable to other forms of pit props.
Patent GB-1069241-A (GB)
Title: Methyl methacrylate syrup
IPC: C08F257/02
Filed: 1964-05-14
Abstract: Polymerizable syrups having a viscosity of 0.1 to 50 poises at 25 DEG C. are made by dissolving (A) poly-(alpha-methylstyrene or a polymer mixture containing a preponderance thereof or a copolymer consisting predominantly of alphamethylstyrene units in (B) methyl methacrylate or a mixture thereof with a comonomer such as styrene and its alpha-methyl derivative, ethyl and allyl methacrylates, diallyl melamine, cyanurate, phthalate, maleate and fumarate, triallyl cyanurate, itaconic acid and dimethyl itaconate.  Polymerization may be carried out with the aid of benzoyl peroxide and azobisisobutyronitrile as catalysts.  Glass fibres may be incorporated in the syrups, which are then polymerized to form reinforced bodies.  The examples polymerizing syrups containing poly-(alpha-methylstyrene) and mixtures thereof with polymethyl methacrylate, and a styrene/ alpha-methylstyrene copolymer dissolved in methyl methacrylate and mixtures thereof with alpha-methylstyrene, triallyl cyanurate, diallyl phthalate allyl methacrylate and diallyl itaconate.  The Specification describes also polymerizing alpha-methylstyrene in solution in hexane in the presence of finely divided potassium metal.
Patent GB-1151532-A (GB)
Title: Photomechanical production of Bimetallic Printing Plates
IPC: B41N3/03
Filed: 1966-05-06
Abstract: 1,151,532. Photo-sensitive materials and printing plates produced therefrom. POLYCHROME CORP. May 6, 1966 [May 12, 1965], No.20098/66. Headings G2C and G2M. A light-sensitive material for producing negative or positive printing plates comprises a bi-metallic support, one metal being hydrophilic and the other oleophilic, coated with a protective layer formed by uniformly exposing a lighthardenable composition, and a light-sensitive layer containing a diazo resin, a complex diazo resin or a quinone diazide. The bi-metallic support is preferably aluminium/copper support which is coated with a diazo resin which is uniformly hardened and coated with a diazo resin or a quinone diazide, imagewise exposed and developed to remove either the un-exposed or exposed areas, etching the bared copper and removing the residual resist to produce the printing plate. Four methods of producing the lithographic plates are given:- (i) coating the copper surface of a bi-metallic support with a diazo resin layer, uniformly exposing to light to harden the layer, coating the hardened layer with a positive working diazone resin complex of Specification 947, 760, imagewise exposing and treating with an alkaline coupling solution to render the image areas hydrophilic and the non-image areas hydrophobic, applying an oleophilic etch-resistant lacquer over the hydrophobic image areas and etching with a copper etch solution to remove the unprotected areas including the copper layer. (ii) coating the copper surface of a bi-metallic support with a layer of diazo resin which is uniformly exposed to light to produce a hardened, oleophilic layer, coating the hardened layer with a negative-acting diazonium compound and a soluble hydrophilic polymer, imagewise exposing and washing off the unhardened and unexposed areas, applying an oleophilic, etch-resistant lacquer to the oleophilic subbing layer and applying a copper etch to remove the unprotected areas including the copper layer. (iii) coating the copper surface of a bi-metallic support with a diazonium compound in a colloid binder which is uniformly exposed to light to produce a hardened layer, coating with a negativeworking diazo resin layer, imagewise exposing and removing the non-exposed areas and leaving hydrophobic areas, coating with an oleophilic etch-resistant lacquer and removing the unprotected areas with a copper etch as above. (iv) coating the copper surface of a bi-metallic support with a positive-acting diazo compound which is uniformly exposed to light to produce a hardened layer, coating the hardened layer with a positive-working orthoquinone diazide, imagewise exposing and removing the exposed areas with aqueous alkali, applying an oleophilic etch-resistant lacquer to the hydrophobic, unexposed areas and removing the unexposed areas with a copper etch as above.
Patent GB-1366829-A (GB)
Title: Coin separator
IPC: G07F1/04
Filed: 1972-05-01
Abstract: 1366829 Separating coins MARS Inc 1 May 1972 [30 April 1971] 20185/72 Heading G4X A coin separator for spacially separating facially overlapped coins 22, 23 comprises a coin track 16, 18 for supporting the coins the track having a profile such that the coins will roll off therefrom to fall at different positions on to a flexible cantilevered track 26 which absorbs energy from the coins. In the embodiment shown the track 18 is formed with an aperture 24 through which the coin 23 drops on to the track 26. To ensure adequate separation of the coins leaving track 26 an escapement 36 is provided at the end of the track. The escapement (see also Fig. 3, not shown) has a coin conveying surface 46 on to which the first coin rolls, thus pivoting the escapement and moving an abutment (42) into the path of the second coin. The rate of return of the escapement to its rest position after the first coin leaves the coin conveying surface is limited by an air baffle. An abutment 30 is provided for slowing coins before they reach tracks 16, 18. In a second embodiment (Figs. 4, 5, not shown) the two coin tracks (54), (56) are of different slopes and lengths, pins (52) upstream of the tracks serving to slow and guide the coins on to the tracks. In a third embodiment (Figs. 8, 9, not shown) one track (76) is smooth whilst the other (74) undulates.
Patent GB-293802-A (GB)
Title: Improvements in balancing devices for the hoisting ropes of lift and mine cages
IPC: B66B7/06
Filed: 1928-07-11
Abstract: 293,802. Jackson, L. Mellersh-, (Kellner & Flothmann Ges.). July 11, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 13, 1928.] Balancing. - In a lift system the balancing chain b is either a Galle chain, a stud chain, or a chain, Fig. 3, in which the thickness of a link e is very nearly one half of its internal length.
Patent GB-930342-A (GB)
Title: Bucket-type conveyors
IPC: B65G67/00
Filed: 1961-06-05
Abstract: 930,342. Endless conveyers. R. G. C. JENKINS. (J. N. Leach). June 5, 1961, No. 20219/61. Class 78 (1). To avoid the necessity of providing automatically controlled valve mechanism to cut off the flow of material when no conveyer container is beneath a loading position the containers are moved into contacting positions at the loading position so as to enable material to be dumped directly into them without spilling, and then moved apart when they leave the loading area. As shown, the top portion of each channel 34 supporting chains 24 is elevated within the loading area 36 and a fixed cam 40 is arranged to engage cam followers 38 provided on every second link of the chains. As buckets 26 pivotally supported on connections 28 between the chains move into the loading area, folding of the chains is produced by engagement of the cams 38 and cam followers 40 and the buckets are moved close together. The buckets can be connected to link connections which move upwardly, the buckets thus being at an elevated position from that shown in Figs. 4, 5. Alternatively, the buckets may be connected at the end of odd links, e.g. with three links between them, thus causing one bucket to remain in a low position and the next bucket to be moved into a raised position. To facilitate the folding and opening action of the chains and to augment the force of the driving motor during folding, drive is provided between sprockets 12, 14 which carry the chains 24. The buckets are discharged into a hopper 32 by the engagement of studs 44 with a fixed cam 46. Several damping points may be provided by placing the studs 44 at different positions or an alternate sides of the buckets and placing cams 46 at different points to coact only with cams on selected buckets. When the size of the buckets and load permit, only one chain may be used to suspend the buckets, Fig. 7.