baber/WOPTO huggingface dataset:
Patent GB-151373-A (GB)
Title: A key ring
IPC: A44B15/00
Filed: 1919-06-25
Abstract: 151,373. Reece, T. June 25, 1919. Key-rings.- Relates to key-rings of the type in which a gapped ring is provided with pivoted washers normally closing the gap, a key being put on to, or removed from, the ring by inserting its bow into slots in the washers and turning them round. According to the invention, a chain link d is provided on the key-ring and is adapted to turn with the disks. The link d is mounted on either side of the washers b on a rivet e which forms a common fulcrum. Fig. 1 shows the ring with the slots in the washers in position to receive a key, while Fig. 4 shows the parts turned to allow the key to pass on to the ring.
Patent GB-497069-A (GB)
Title: Improvements in or relating to light modulating devices
IPC: H04N5/66
Filed: 1937-06-10
Abstract: 497,069. Modulating light. SCOPHONY, Ltd., and WALTON, G. W. June 10, 1937, No. 16096. [Class 40 (iii)] In a light modulating device of the type in which supersonic mechanical waves are produced in a medium through which a light beam is passed perpendicular to them, as described in Specification 439,236, there is provided at one end of the container a damping portion comprising at least two reflecting surfaces so placed that the waves, on entering the damping portion are repeatedly reflected between them. A container 1, of rectangular cross section has oppositely placed windows 2 for the passage of the light beam and piezoelectric crystal 3. At the end opposite the crystal is formed a damping portion 5 of similar cross section disposed at an angle of 45‹ such that the mechanical waves are reflected up into the portion 5 and suffer repeated reflections between the surfaces 7. In a modification, Figs. 3 and 4 (not shown), all four surfaces of the damping portion co-operate in the reflecting of the waves by arranging that two diagonally opposite edges of the operative portion of the cell are coplanar with the two corresponding diagonally opposite edges of the damping portion. Specification 492,469 is referred to.
Patent GB-170056-A (GB)
Title: Improvements in or relating to the manufacture of chlorinated derivatives of toluene
IPC: C07C303/22
Filed: 1920-06-15
Abstract: By chlorinating toluene-o-sulphonic acid at a low temperature in aqueous solution, a mixture of 4-and 6-chlorotoluene-2-sulphonic acids is obtained; in dilute aqueous solution and preferably at a temperature not exceeding 65 DEG  C., toluene-o-sulphonic acid or its 4- or 6-chloro-derivative is transformed into trichlorotoluene-2-sulphonic acids.  Instead of the acids, their soluble salts may be employed as starting materials.  The 6-chloro-toluene-2-sulphonic acid is separated from the 4-isomer by taking advantage of the lesser solubility of its salts in water.  By hydrolysis of the chloro-compounds, chlorotoluenes are produced.  The chlorotoluenes and their sulphonic acids may be oxidized to their corresponding aldehydes. According to the Provisional Specification, dichlorotoluene-2-sulphonic acids accompany the formation of the trichloro-acids.
Patent GB-1480551-A (GB)
Title: Pumping apparatus for fluid jet looms
IPC: D03D47/30
Filed: 1975-04-18
Abstract: 1480551 Reciprocating pumps MASCHINENFABRIK RUTI AG 18 April 1975 [18 April 1974] 16204/75 Heading F1A A pump for supplying liquid to the weft insertion nozzle 24 of a fluid jet loom, comprises a piston 15 moved on its delivery stroke by a spring 30 and on its suction stoke by a cam 50 acting via follower 54, lever 55, linkage 61 to 63 and lever 37, the transmission ratio of lever 55 being adjusted by moving pivot 59 along slot 58 to adjust the piston stroke length without substantially varying the time period for which follower 54 contacts the suction stroke part of cam 50. The position of the piston at the end of its delivery stroke is also substantially unchanged by the adjustment of pivot 59. The movement of pivot 59 may be effected either by slackening a nut 60, as shown, or by rotating a threaded spindle carrying the pivot and mounted on lever 55. The length of linkage 61 to 63 is adjustable by rotating threaded sleeve 62. The spring loading is adjustable by a threaded sleeve 31.
Patent GB-380780-A (GB)
Title: Improvements in or relating to vapour pumps such as diffusion pumps
IPC: F04F9/08
Filed: 1931-06-04
Abstract: 380,780. High vacuum ejector apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., of General Electric Co., Witton, Birmingham. June 4, 1931, No. 16269. [Class 71.] In a vapour pump having an electrically heated boiler, such as a diffusion pump used in connection with a mercury arc rectifier, provision is made for effecting greater heating when the pump is being started up than when it is in operation. Control may be rendered automatic by a time or thermal switch. The boiler 1 forms part of a single turn secondary 11 as described in Specification 380,471. Increased initial power is obtained by short-circuiting a choke 5 in the primary circuit by a relay 7. In a modification the primary is tapped and the relay controls the number of effective turns. In another modification the primary is in two parts which are connected in series or parallel by the relay. The boiler may be heated by main and auxiliary heating elements, the auxiliary element being cut out during normal working or the connection of the elements being varied from parallel to series. In a further modification the boiler is heated by currents induced therein by a high frequency coil.
Patent GB-1347035-A (GB)
Title: Refractory lining of the sintering zone of furnaces particularly  rotary kilns used in the cement industry
IPC: C04B35/03
Filed: 1971-05-21
Abstract: 1347035 Refractory bricks OSTERREICHISCH - AMERIKANISCHE MAGNESIT AG 21 May 1971 [14 Aug 1970] 16355/71 Heading C1J [Also in Division F4] Basic refractory bricks having the composition (a) SiO 2  2À95%; Fe 2 O 3  6À45%; Al 2 O 3  2À90%; Mn 3 O 4  0À22%; Cr 2 O 3  10À15%; CaO 1À54%; MgO 75À79% or (b) SiO 2  2À69%; Fe 2 O 3  9À96%; Al 2 O 3  6À25%; Mn 3 O 4  0À26%; Cr 2 O 3  23À98%; CaO 1À29%; MgO 55À57% are fired and impregnated with phosphoric acid which combines with the brick material to form phosphates or with solutions of phosphates of ammonia, the alkali metals or the alkaline earth metals.
Patent GB-612668-A (GB)
Title: An improved peeling device
IPC: A47J17/16
Filed: 1946-05-29
Abstract: 612,668. Peeling fruit. FADER, 1. E., and HAMAK, B. A. May 29, 1946, No. 16381. [Class 28(ii)] [Also in Group I] In a peeling device the vegetable is held on the blade 10 on the spindle 3 rotated by handle 5 in bearing 2 mounted on a frame 1. The spindle, and hence the vegetable, is moved longitudinally by a thread engaging a releasable catch in the bearing. The cutter 18, of semi-circular or U-shape, is carried on a spring-mounted arm 13 on the pivot 14.
Patent GB-596688-A (GB)
Title: Production of coloured masses and articles from organic filament-forming materials
IPC: C08L67/02
Filed: 1945-06-27
Abstract: Coloured masses of filament-forming linear polyesters are obtained by incorporating therein while molten a dispersion of a pigment in a different linear polyester or in a linear polyester-amide.  In an example, Turkey Red Oxide 2G and the low-molecular linear polyester-amide described in example (1) of Specification 569,170 are mixed to a smooth paste which is added to molten polyethylene terephthalate.
Patent GB-1033584-A (GB)
Title: Titanium disulphide particles and a method for making them
IPC: C01G23/00
Filed: 1965-04-15
Abstract: Spheroidal TiS2 particles comprising concentric laminae of plate-like crystals of TiS2 round a core of TiS2, each particle being less than 4.8 mm. diameter, having a brassy appearance and making a greenish-black smear when rubbed on a light surface, may be prepared by fluidizing a bed of TiS2 granules of at least 0.1 mm. diameter, in the absence of an oxidizing atmosphere, by passing TiCl4 vapour and H2S, through the bed, in a molar ratio of 1 : 2 to 1 : 6 respectively, at a temperature of 400-700 DEG  C., and removing the particles before they reach 4.8 mm. diameter.  The gaseous reactants may be passed through the bed with a linear space velocity of at least 0.03 m/sec. The gas mixture may contain gases inert to the reactants, and preferably contains a minor proportion of N2.
Patent GB-1493529-A (GB)
Title: Treating electrophotographic materials to orient them
IPC: G03G5/07
Filed: 1975-04-21
Abstract: 1493529 Treating electro-photographic members XEROX CORP 21 April 1975 [26 April 1974] 16467/75 Heading G2C A method of treating an electro-photographic material to increase its flexibility and durability which comprises heating and stretching to orient . the material, the material comprising a support (preferably conductive), a photo-conductive charge generating layer and a brittle, non-oriented polymeric layer capable of transporting charges, the heating step being carried out above the glass transition temperature of the polymer. Preferably, biaxial stretching increasing dimensions by 80- 300% in both directions is carried out. Specified photo-conductors are Se, ZnO, ZnS, CdS, CdS Se, Cd Se or TiO 2  or a mixture of Se and polyvinyl carbazole (PVK) or PVK sensitized with trimitrofluorenone. Specified polymeric charge-transporting layers are polyvinyl carbazole, substituted polyvinyl carbazoles, polyvinyl pyrene, polyvinyl anthracene, polymethyl-enepyrene, polypyrenyl butadiene and the polyacrylamide of pyrene. Normally, the stretch orienting step is carried out on the complete material but it may be performed before the photoconductive layer is applied.
Patent GB-180574-A (GB)
Title: Improvements in and relating to stays for vehicle hoods or covers
IPC: B62B9/14
Filed: 1921-06-15
Abstract: 180,574. Marks, E. C. R., (Reichstein Brennabora-Werke, Geb.). June 15, 1921. Pivoting-adjustments.-In a foldable stay or strut for vehicles, more particularly for the covers of perambulators, an arm b is pivoted in a casing a within which is slidably mounted the end of the arm h, the parts being arranged so that when the arm b is folded down to collapse the hood or cover, a projection c engages a recess m in a slide f, which is moved to compress a spring i, as shown in Fig. 11. The spring i engages at one end with an angled member f<2> of the slide, and it encircles a reduced end of the arm h. By this arrangement, the rod h can compress the spring through the slide f when the stretched cover is under too great a tension. When the arm b is in an intermediate position, as shown in Fig. 10, the projection c is in engagement with the recess m of the slide f, and the action of the spring maintains the arm b in this position.
Patent GB-1224357-A (GB)
Title: Apparatus for the heat treatment of wound ribbon magnetic cores
Inventor: DUBROVIN GENRIKH FEDOROVICH
IPC: F27D3/18
Filed: 1968-04-05
Abstract: 1,224,357. Tunnel furnaces. G. F. DUBROVIN, and V. V. VORONOV. 5 April, 1968 [5 July, 1967], No. 16525/68. Heading F4B. An electrically heated tunnel furnace 1 for the heat treatment of wound ribbon magnetic cores 4, is provided at its charging end with a pneumatically actuated push-rod 5 which feeds the cores whilst compressing them, one against another from an inclined shoot 3 through the furnace tunnel 2, which is provided with longitudinally extending guide means (not shown), to a synchronously operating discharge mechanism 6. The latter, shown in plan view in Fig. 5, comprises a wedge-shaped stop 11 in the line of the path of the cores 4 through the tunnel, which stop is backed by a laterally movable wedge 13. Spring-loaded pins 12 secured to the stop 11 and extending through a wide aperture in wedge 13, tend to pull the stop away from the front face of the leading core, but the backing wedge 13 prevents this. On actuation of pneumatically-operated slide member 15, wedge 13 moves with it to the left, thereby allowing the pins 12 to pull back the stop 11 to release the pressure on the line of cores, whilst simultaneously push-rod 14, which is also connected to slide member 15, moves with it to the left to displace the leading core into outlet passage 19.
Patent GB-169245-A (GB)
Title: Improvements in power actuated lawn mowers
IPC: A01D34/47
Filed: 1920-06-18
Abstract: 169,245. Jackson, W. J. Mellersh-, (Pontiac Lawn Mower Co.). June 18, 1920. Lawn-mowers.-A lawn-mower adapted to be propelled and guided manually is provided with a motor for driving the rotary cutter and with means for putting the ground wheels into driving- connection with the cutter shaft when it is required to drive them. The machine comprises a rotary cutter A, a stationary knife-bar C, ground wheels F, an adjustable roller G, handles N, and a light frame including side plates D and crossbars E. A light two-cycle motor H drives the cutter spindle through chain gearing J and a friction clutch. The ground wheels F are mounted on a shaft P carried by spring-controlled pivoted arms Q connected to a lever T bv an arm R and rod S. By moving the lever T the wheels F may be placed in driving contact with friction rollers O on the cutter spindle. Bv reversing the engine the cutter A may be driven backwards for sharpening purposes. The batteries, coil, and control switch are enclosed in a housing on the frame.
Patent GB-785947-A (GB)
Title: Electric switches having interlocked covers
Inventor: LOWE SIDNEY ROLAND
IPC: H01H21/06
Filed: 1955-06-09
Abstract: 785,947. Cam-operated switches; switch covers; key-operated switches. MIDLAND ELECTRIC MANUFACTURING CO., Ltd. June 8, 1956 [June 9, 1955], No. 16565/55. Class 38 (5). In a switch of the kind wherein contacts b are carried (as shown), or operated, by a slidable bar a actuated by a cam c against the action of a spring d, the cam and bar are covered by a shield g having a keyhole slot h giving access for a keypiece n on the operating handle m to a notch in the cam, the keypiece and slot being arranged so that the handle and keypiece, together with the switch cover j, can only be removed when the switch is open. Levers p pivoted to the cover and interconnected by a spring q co-operate with formations on the handle spindle k to locate the switch on and off. In a modification (Figs. 4-6, not shown) the shield is in two parts, one being removable to give access to the contacts, and the movable contacts comprise blade springs fixed at one end to the base and taking in notches in the bar a for actuation thereby. The spindle k is biased " off " by a relatively weak torsion spring to facilitate replacement, and the cam engages a shallow recess in the bar a to locate the latter in the off position.
Patent GB-460000-A (GB)
Title: Improvements in spring suspensions for railway vehicles
IPC: B61F5/30
Filed: 1936-06-15
Abstract: 460,000. Railway vehicle undercarriages. ORENSTEIN & KOPPEL AKT.-GES., 23, Tempelhofer Ufer, Berlin. June 15, 1936, No. 16651. Convention date, June 15, 1935. [Class 103 (vi)] An axle-box for railway vehicles is connected with the underframe solely by short vertical springs disposed fore-and-aft of the axle and fixed rigidly at the top to the underframe, and at the bottom to flanges or brackets on the axle-box, the springs allowing universal horizontal movement of the axle-box without restraint by guides. The springs may be of rubber a, Fig. 1, vulcanized to plates a<1> fixed by bolts b to the frame c and flange d, the frame having vertical flanges e for protection from light and oil. In Fig. 3, the metal helical spring f is secured by anchor-plates g welded to bolts h and having helically bent rims to form external screw threads corresponding to the springs f. Specifications 270,311 and 333,009, [both in Class 103 (vi)], are referred to.
Patent GB-1009220-A (GB)
Title: Process for the electrolytic preparation of tetramethyl lead
IPC: C25B3/13
Filed: 1962-05-01
Abstract: Tetramethyl lead is produced electrolytically using a lead anode and an electrolyte containing an Al compound of the general formula MAl(CH3)m(OR1)4- m where M is an alkali metal, R1 represents alkyl, cycloalkyl, aryl or substituted aryl radicals and m is a whole number from 1-4, the compound being dissolved in an inert organic solvent. The electrolyte may comprise a mixture of MAl(CH3)4 and MAl(CH3)3OR1. An alkali metal boron tetramethyl compound of the general formula MB(CH3)4 may be added. The Pb(CH3)4 can be removed from the electrolysis product by distillation.  Al(CH3)2OR1 or Al(CH3)3, produced during the electrolysis, can be reconverted to the electrolyte complex with methyl halide and an alkali metal.  In the examples, the electrolsyis apparatus comprises a glass vessel containing a circular Pb disc anode which is rotated about 10 mms. above a Hg cathode.  The disc has stirrer blades at its border and a further stirrer, which stirs the Hg, extends through a hollow shaft supporting the Pb anode disc. According to the examples the electrolyte comprise the following complexes and solvents:  (1) NaAl(CH3)4 in tetrahydrofurane or in specified ethers, dioxane or triethylamine.  (2) NaAl(CH3)4 and Na(CH3)3AlOCH2. CH(C2H5)C4H9 in tetrahydrofurane.  (3) NaAl(CH3)4 and NaB(CH3)4 in tetrahydrofurane or specified ethers, dioxanes, acetals or tertiary amines.  (4) NaAl(CH3)4 in diglyme.  (5) NaAl(CH3)4 in triglyme mixed with toluene.  (6) NaAl(CH3)3(-O-n-butyl) in tetrahydrofurane.  (7) The corresponding K complex compounds may be used.  Specifications 814,609, 848,364, 864,393, 864,394, 923,651, 943,723, 946,143, 946,686, 955,252, 955,254, 986,522 are referred to.
Patent GB-1518226-A (GB)
Title: Chair
IPC: A47C7/14
Filed: 1976-04-23
Abstract: 1518226 Tilting chair A C MANDAL 23 April 1976 [23 April 1975] 16719/76 Heading A4U A chair comprises a seat 7 mounted on a support 2 by resilient rubber cylinders 5 which present greater resistance to lateral-tilting of the seat than to its tilting in the frontward and backward direction. The support 2 is carried from a base by a column 1, and the cylinders 5 are vulcanized to the support and the seat. In a second embodiment, Figs. 3 and 4 (not shown), an existing fixed-seat chair is converted into one having a resiliently mounted seat by interposing resilient rubber cylinders vulcanized to end steel discs (6) between the seat and the support of the chair. The discs (6) may be omitted.
Patent GB-200336-A (GB)
Title: Improvements in or connected with wafer biscuit or like saw table frames
IPC: A21C11/10
Filed: 1922-06-17
Abstract: 200,336. Bates, T. O. June 17, 1922. Work-holders.-Sheets of material to be sawn up into wafer biscuits or the like are held in a frame 1 by means of a number of separate spring- pressed plates 4 mounted in a cover plate 3. The plates 4 are slightly smaller than the pieces to be cut out.
Patent GB-679412-A (GB)
Title: Change-speed device for electric motor drive of laundry machines
IPC: F16H3/00
Filed: 1950-07-05
Abstract: 679,412. Change-speed gear. PETERSEN, E. SCHLEISNER-. July 5, 1950, No. 16766/50. Class 80 (ii). [Also in Group VIII] The invention relates to a change-speed arrangement for the electric motor drive of laundry machines having drums (not shown) which are required to work at two different speeds, for laundering and hydro-extraction respectively, comprising a motor axle 2, an intermediate shaft 10 and a drum shaft 6 interconnected by means of gears 8, 9, 11, 12, 13, and two one-way idling couplings 4, 5 and 13, 14, so that reversing the motor changes the speed of, without reversing, the shaft 6. According to the invention, the two couplings 4, 5, and 13, 14, have a common coupling part 5, 14, so that the motor axle 2, coupling part 5, 14, and drum shaft 6, are in coaxial relation. In the construction described, a friction disc clutch 3 is interposed between the shaft 2 and the clutch element 4. The one-way clutches comprise balls 15 which work in wedge shaped recesses in the part 5, 14. In operation, the shaft 2 on rotating in one direction drives the shaft 6 direct via the clutch 4, 5. On rotation in the other direction of the shaft 2, the drive is via the gear train 8-13, and the coupling 13, 14, the coupling 4, 5 remaining idle.
Patent GB-497350-A (GB)
Title: Manufacture of complex metal compounds of polyazo-dyestuffs
IPC: C09B45/24
Filed: 1937-06-17
Abstract: Complex metal compounds of polyazo dyes are made by treating with an agent yielding metal and an alkaline reducing agent in one and the same operation an azo dye containing the grouping <FORM:0497350/IV/1> wherein X represents a group capable of assisting the formation of a metal complex, until there is formed the corresponding azoxy-or azo-compound.  An organic hydroxy compound may also be present in the reaction.  The dyes are especially suitable for dyeing cotton. In the examples, dyes from the following components, viz.: 5-nitro-2-amino-phenol, 4-chlor-5 - nitro-2 - aminophenol; 2-amino - 5 - naphthol - 1 : 7 disulphonic acid, chromotropic acid, H - acid, J - acid, dinaphthyl J-acid, N-benzoyl J-acid, 2 : 8 : p  6-acid, 1-amino-8-naphthol-4-sulphonic acid, N-(4 - oxy - 3 - carboxyphenyl) - J - acid, N - phenyl-2 : 8 : 6-acid, dinaphthyl 2 : 8 : 6-acid are treated with a solution of caustic soda, copper sulphate, tartaric acid and grape sugar, or with alkaline grape sugar and a copper salt of an aliphatic aminocarboxylic acid, e.g. aminoacetic acid (cf. Specification 470,356).  Examples of dyeing regenerated cellulose and cotton are given.  Samples have been furnished under Sect. 2 (5) of dyestuffs made (1) by treating the azo dye 5-nitro-2-aminophenol --> J-acid --> resorcinol \sM p-aminosalicylic acid with caustic soda, copper sulphate, tartaric acid and grape sugar; (2)-(4) by treating the dyestuffs 5-nitro-2-amino-1-methoxybenzene --> (N-m-carboxyphenyl)-2 : 8 : 6-acid, 1-naphthol-3 : 6-disulphonic acid or 2-naphthol - 5 - 7 disulphonic acid with alkaline glucose and ammoniacal copper sulphate.  Specifications 295,594, [Class 2 (iii)], and 425,367 also are referred to.
Patent GB-537401-A (GB)
Title: Improvements in or relating to a flotation process and to a flotation cell, for separating particles from pulp material containing the same, and capable of separating relatively coarse particles
IPC: B03D1/02
Filed: 1939-06-09
Abstract: 537,401. Concentrating coal &c. STEVENS, A. H. (Philade1phia & Reading Coal & Iron Co.). June 9, 1939, No. 16953. [Class 82 (ii)] A flotation process, for example, for coal, comprises introducing into a pulp in the lower part of a cell a controlled supply of air or gas so limited as to produce minute bubbles which remain minute and are present in insufficient quantity to cause coalesoence into larger bubbles, effecting classification in a quiescent zone of the cell. and removing the resulting froth which floats adjacent to and beneath the surface of the liquid. In the apparatus shown, the pulp, which may be conditioned by the addition of collecting and frothing agents such as kerosene and cyanamide, is fed through an inlet 3 to the upper face of an impeller 4 beneath a column 6 to which a current of air or gas is admitted through an adustable port 6b. The impeller discharges the mixture into a zone A and thence through vertical baffles 10 and grids 11, 11a to a separating zone B. Middlings pass into pockets 12 from which they may be returned to the inlet 3, or to another cell, while the concentrate which forms beneath the surface of the liquid is removed by conveyers 13, water sprays 17 being provided to clean the concentrate as it is being removed. Tailings pass out through an adjustable opening not shown. A series of such cells may be used, the tailings from one being treated in the next.