baber/WOPTO huggingface dataset:
Patent GB-766711-A (GB)
Title: Improvements in or relating to circuit arrangements for electric gas discharge tubes
IPC: H05B41/232
Filed: 1954-08-04
Abstract: 766,711. Supply circuits for electric discharge tubes. PHILIPS ELECTRICAL, Ltd. (Naamlooze Vennootschap Philips Gloeilampenfabrieken.) July 12, 1955 [Aug. 4, 1954], No. 22624/54. Addition to 612,787. Class 38 (4). The circuit arrangement claimed in Claim 1 of the parent Specification is improved or modified in that the main winding 8 of the choke is the only inductance in the main discharge circuit of the tube 1, the number of turns on the main winding 8 is substantially equal to that of the auxiliary winding 13, and the two choke windings 8, 13 are loosely magnetically coupled to each other. The number of auxiliary winding turns 13 may be not less than 82 per cent of the number of main winding turns. The circuit is said to draw current of good waveform from the A.C. supply.
Patent GB-1458498-A (GB)
Title: Multi-rotor rotary internal combustion engine
IPC: F01C21/00
Filed: 1975-05-23
Abstract: 1458498 Rotary positive-displacement fluidmachines FORD MOTOR CO Ltd 23 May 1975 [1 July 1974] 22624/75 Heading F1F In a method of assembling a Wankel I.C. engine, which may have two rotors, the main housing elements (11-15), Fig. 1 (not shown), and rotor(s) (16, 17) are first assembled loosely about and upon the power-output shaft (20), said elements being stacked vertically in proper order upon a pedestal of a jig comprising means to support and centre said shaft (129), Fig. 7 (not shown), and the lubricating system is then charged with compressed air to obtain uniform bearing clearances and generally align the elements and rotors correctly relative to the shaft, whereafter the elements are clamped together with tie bolts (90). One of the elements may be vibrated while the lubricating system is charged with compressed air, Fig. 19 (not shown).
Patent GB-867245-A (GB)
Title: Improvements in or relating to snap-action thermally-responsive electric switches
Inventor: SHERLOCK JOHN EDWARD
IPC: H01H35/26
Filed: 1958-07-16
Abstract: 867,245. Thermal switches. BRITISH THERMOSTAT CO. Ltd. July 3, 1959 [July 16, 1958], No. 22833/58. Class 38 (5). A switch for a refrigerator in which all adjustments can be made from one face comprises a bellows 12 acted on by the apex of a substantially " A " shaped leaf-spring 2, the legs of which are supported on lugs 3 bent from the casing 1. The centre portion of spring 2 has an aperture located on a spigot 4 extending from the centre of a range cam 5 adjustable by spindle 7. A raised part 6 adjacent the central aperture in spring 2 acts as a cam follower. The apex of spring 2 presses on a trimming-screw 10 threaded in the movable end-plate of bellows 12 and adjustable via a hole 14 in the casing 1. A tongue 23 extends from the apex of spring 2 to engage an arm 19 articulated at 17 to a switch arm 18 which is pivoted at 16 and moves an arm 26 (pivoted at 27) through the intermediary of a transverse bowed snap-action spring 28 as in Specification 829,660. The arm 26 carries a bridging contact 25 for co-operation with fixed contacts 24. The free end of arm 19 can move between a casing lug 20 and a screw 21, adjustable via hole 22 in the casing 1 to set the switch differential. An upstanding arm 30 formed on switch arm 18 can be engaged by a radial projection 29 on cam 5 to hold the contacts open when the spindle 7 is in one position.
Patent GB-1524909-A (GB)
Title: Comminuting machine
IPC: B02C18/14
Filed: 1976-06-02
Abstract: 1524909 Roller mills comminuting apparatus ALPINE AG 2 June 1976 [12 June 1975] 22857/76 Heading B2A A comminuting apparatus comprises a comminuting roll 2 and a toothed feed roll 10 Fig. 2 so arranged as to force rubbish e.g. packages 19 into the nip of the comminuting roll. The roll 2 cooperates with a bed knife. The feed in passage may include a shaping wall (15a) Fig. 3, (not shown), and the feed roller may include a comb-like scraper 20 Fig. 4, and may have teeth 13 with leading edges in the form of rearwardlycurved spinals of increasing pitch with sharp tips Fig. 5. Two comminuting rollers may be used Fig. 6, not shown, and to widen the capacity two contra-rotating. Feed rollers 10, 10a may compress bulky rubbish for feed into the nip of a pair of comminuting rollers 2, 2a Fig. 7.
Patent GB-985718-A (GB)
Title: Improvements in the production of polyvinyl chloride fibres
IPC: D01D5/04
Filed: 1963-06-07
Abstract: 985,718. Polyvinyl chloride filaments. SOC. RHOVYL. June 7, 1963 [June 18, 1962], No. 22887/63. Heading B5B. Polyvinyl chloride filaments are made by dry-spinning a solution of the polymer in a spinning solvent, containing also a heavy solvent, as defined, stretching the filaments, and heat-setting the oriented filaments under tension. A heavy solvent is defined as a solvent having a boiling point sufficiently higher than that of the spinning solvent or solvents not to be eliminated in the spinning operation. Specified heavy solvents are dimethyl formamide, dimethylacetamide, dimethyl sulphoxide, cyclopentanone, cyclohexanone, dialkyl phthalates, e.g. dioctyl phthalate, and triaryl phosphates, e.g. tricresyl phosphate. Preferably the spinning solution contains 0À1-5% of the heavy solvent, based on the weight of the polyvinyl chloride. The spinning solvent or solvent mixture preferably has a boiling-point less than 125‹ C., specified solvents being carbon disulphide and acetone, perchloroethylene and acetone, benzene and acetone, tetrahydrofuran, propylene oxide, and ternary mixtures of carbon tetrachloride, benzene and acetone. Incorporation of the heavy solvent in the spinning solution permits the filaments to be heat-set at higher temperatures.
Patent GB-466997-A (GB)
Title: Improved method and means for separation of foreign matter from grain, the products of grain, or granular material in dry condition
IPC: B03C7/04
Filed: 1936-08-20
Abstract: 466,997. Sifting-apparatus. ROBERTSON, J. S. Aug. 20, 1936, No. 22931. Convention date, Sept. 9, 1935. [Class 117] In the process of separating grain such as wild wheat having a narrow body with an elongated tail or whiskers from oats by sifting, the material while passing over the sieve is subjected to an electrostatic field sufficient to cause the elongated grain to be up-ended and facilitate its passage through the sieve meshes. The apparatus described comprises a casing 6 suspended by arms 8, oscillated by an eccentric 35 and carrying a sieve 5 and collecting plate 28. The grain is fed from a hopper 12 by a roller 34 on to a distributing plate 5b forming an extension of the sieve. An insulated plate 16 is adjustably supported on a bar 23 preferably in a position converging with the sieve towards its feed end, and is connected in circuit with the plate 28 so as to provide an electrostatic field between them of an intensity approximating 100,00 volts.
Patent GB-389386-A (GB)
Title: Improvements in and relating to collapsible tops for vehicle bodies
IPC: B60J7/12
Filed: 1932-08-16
Abstract: 389,386. Vehicle hoods. GROVES, W. W., 30, Southampton Buildings, London. -(Briggs Manufacturing Co. ; 11631, Mack Avenue, Detroit, Michigan, U.S.A.) Aug. 16, 1932, No. 22972. [Class 108 (i).] A folding hood comprises a header or peak 16 adapted to be secured to the front of the body by means such as a screw 20, Fig. 5, a main hoop 24, divided cant rails 25, 26 pivoted to a bracket 29 situated on the rear face of the main hoop 24 and to the header 16 and foldable to bring the header 16 within the confines of the main hoop 24 and levers or links 38 connecting the main hoop at 40 to the cant rails at 41. A rear hoop 36 and a stretcher 33 are provided.
Patent GB-1327149-A (GB)
Title: Apparatus for mixing gas with liquid
IPC: C02F3/12
Filed: 1971-04-19
Abstract: 1327149 Aerating and circulating liquids J S STONE 19 April 1971 [25 Feb 1970] 23015/ 71 Addition to 1266572 Heading B1C [Also in Division C1] The apparatus of the main application is simplified by the provision of only one internal frusto-conical wall 158a and a single ring air diffuser 72a.
Patent GB-498931-A (GB)
Title: Improvements in or relating to free-wheel hubs for cycles
IPC: B62M9/10
Filed: 1937-08-23
Abstract: 498,931. Free-wheel hubs for cycles. BIRMINGHAM SMALL ARMS CO., Ltd., SPECK, T. R., and WOOD, A. E. Aug. 23, 1937, No. 23016. [Class 136 (ii)] A free-wheel hub for cycles comprises in combination an outer sleeve 1, which has one or more sprockets 2 mounted thereon and constitutes at its inner end the inner member 3 of the free-wheel clutch, and an inner sleeve 8 adapted to be slidably mounted on the hub spindle 10 and provided at or near its ends with anti-friction bearings 12, 16 to carry the outer sleeve 1, the parts when assembled constituting a complete detachable unit, which can be slid on to the spindle 10 and secured by a nut 19. The clutch may comprise rollers 5 coacting with a ring 6 fixed to the hub shell 7 ; or a ratchet clutch may be employed. The outer end of the sleeve 8 is reduced and screw-threaded to receive an adjustable bearing cone 15. The inner end of the sleeve 8 is formed with an annular recess to receive a sleeve-like spigot 22 formed on the fixed cone 21 of the hub bearing 20.
Patent GB-1128679-A (GB)
Title: Egg boiler and cooker
IPC: A47J29/06
Filed: 1967-05-18
Abstract: 1,128,679. Egg boiler. D. L. MINIKIN. 15 Sept., 1967 [18 May, 1967], No. 23124/67. Heading A4D. An egg boiler comprises an artificial egg shell combining an egg-cup made in three separate parts which press tightly together and have overall dimensions similar to a natural egg. The boiler is suitably made in plastics, glass or stainless steel.
Patent GB-775407-A (GB)
Title: Improvements in or relating to a machine for use in the manufacture of slide fasteners
IPC: A44B19/58
Filed: 1955-08-11
Abstract: 775,407. Making slide fasteners. WALDES KOH-I-NOOR, Inc. Aug. 11, 1955 [Aug. 12, 1954], No. 23164/55. Class 83 (2). Apparatus for removing groups of fastener elements 11 at predetermined places from a continuous slide fastener chain which is fed intermittently beneath punches 14, has means 20, 33 which operate between successive feed movements of the chain for ensuring accurate location of each group or groups of elements to be removed relative to the punches. The chain is fed by intermittently rotating rollers 12, 13 and between each feed a locating pin 20 biased downwardly by a spring 21 is released by a cam 30 to engage between successive elements 11a, 11b, and a stretching pin 33 biased downwardly by a spring 39 is then released by a cam 38 and presses the chain between rollers 13, 40 to press the element 11a against the locating pin 20 and stretch the chain. Punch 15b is then actuated to remove a group of elements from adjacent the rear end of a length of chain to be cut off by punch 16, and a punch 15a is actuated to remove a group of elements from adjacent the forward end of the next length of chain. The pins 20,'33 are retracted by the cams 30, 38 which are driven in timed relationship with the punches. Specification 769,370 is referred to.
Patent GB-1049029-A (GB)
Title: Stabilization of polyurethane resins
Inventor: OERTEL HARALD
IPC: C08G18/83
Filed: 1964-06-04
Abstract: Cellular and non-cellular polyurethanes are stabilized by adding to the polyurethane 0.1 to 15% by weight of one or more N:N dialkyl substituted carboxylic hydrazides which contain at least 5% by weight of the active grouping <FORM:1049029/C3/1> either before the components used to make the polyurethane are reacted, or during or after the formation of the polyurethane. The polyurethane contains chain extending or crosslinking groups obtained by the reaction of isocyanate groups with water, primary or secondary amines, hydroxylamines, hydrazines, polyhydrazides, polysemicarbazides, polycarbazinic acid esters or carbohydrazides.  The polyurethane may be prepared from polyesters, polyethers, polyacetals, polyesteramides or polythioethers of M.W. 500-5000 and of M.P. below 60 DEG  C. Other stabilizers, e.g. phenols, may also be included.  In Example (1) diphenylmethane 4,41-diisocyanate and chlorobenzene were added to a polyester derived from adipic acid, hexane 1:6-diol and 2:2-dimethylpropane-1:3-diol and the prepolymer so obtained was reacted with carbodihydrazide in dimethylformamide and pigmented with TiO2. 1:6-Hexane diisocyanate was then added and to portions of the resulting elastomer solution the following stabilizers were added: (a) adipic acid-di(N:N-dimethylhydrazide), (b) succinic acid mono-N:N-dimethyl-hydrazide, (c) stearic acid N:N-dimethyl-hydrazide, (d) terephthalic acid di-(N:N-dimethylhy-drazide), (e) poly-(b -diethylaminoethylmethacrylate), (f) suberic acid/piperazine polyamide.
Patent GB-261503-A (GB)
Title: An improvement in or relating to cooking stoves or ovens
IPC: F24C15/02
Filed: 1925-09-18
Abstract: 261,503. Naylor, A. S. Sept. 18, 1925. Doors for cooking stoves or ovens comprise a series of metal strips e with bent interlocking edges, forming a flexible shutter; the edges of the shutter slide in tracks formed between ribs b<2> projecting from the sides of the oven, the top b<3> of the oven, plates a' secured to the front, and the back. The oven shown is intended to be mounted on the top of a boiler stove, the construction of door allowing the oven to be opened or closed without the interference with utensils on the hot-plate caused by hinged doors.
Patent GB-1389363-A (GB)
Title: Apparatus for handling a flow of articles
IPC: B65B35/40
Filed: 1973-05-16
Abstract: 1389363 Discharging folded box blanks from a belt conveyer J BOBST & FILS SA 16 May 1973 [24 May 1972] 23296/73 Heading B8A Laterally spaced support members 4 (only one, visible in Fig. 2), each slidable on rollers in a recess 12, in a frame plate 2, serve to minimize the friction opposing the movement of a stack of box blanks being discharged from laterally spaced conveyer belts 1. The blanks back-up to a stop 5 rigid with the members 4. The stop 5 bears on a member 6 which is mounted on rollers and is connected to a braking cylinder 7. The member 6 is also connected by a strap 9 to a weight 22 so as to apply a resistance to the movement of the stack. When the stack reaches a pre-determined length, it may be divided by lowering a member 8.
Patent GB-480540-A (GB)
Title: Improvements relating to foldable cardboard boxes and the like
IPC: B65D5/22
Filed: 1936-08-25
Abstract: 480,540. Boxes. LAIRD & SON, Ltd., J., EDWARDS, H., and BUCHAN, J. C. Aug. 25, 1936, No. 23300. [Class 18] Two overlapping plies 4, 6 in a box are held together by tongues 11, which are substantially in register when the box is erected and can be displaced out of alignment with their respective plies. The plies 4, 6 may be constituted by a single folded sheet and the tongues are outlined by cuts or lines of weakness extending in opposite directions from the line of fold 8. The back tongue has lateral portions which engage the front ply and prevent the tongues from returning into alignment with their respective plies. The tongues in the front flange of the lid serve as a tab to facilitate opening of the lid and as a friction device to hold the lid closed. Specification 461,049 is referred to.
Patent GB-762047-A (GB)
Title: Foldable pushchairs
IPC: A47D1/06
Filed: 1954-08-11
Abstract: 762,047. Push chairs. JENKINS, C. W. T. and JENKINS, T. H. May 25, 1955 [Aug. 11, 1954], No. 23303/54. Class 108(1). A push chair which may be folded by pivoting a handle 17 about a point 18 to collapse pivoted frame links 10, 11, 13, and 16 may be held locked in the extended position by a pair of links 23, 25 on each side. In this position the links are overset and rest against stops formed by sleeves surrounding the pivots 15. To collapse the chair, the link 23, which is U-shaped and extends across the back to form a link of the other link pair, is raised to move the aligned pivots 24 upwardly and bring the links to an underset position shown dotted, thus permitting the handle 17 to pivot. Specification 762,065 is referred to.
Patent GB-170435-A (GB)
Title: Improvements in electric lighting systems
IPC: H02J7/34
Filed: 1920-08-09
Abstract: 170,435. C.L.I. Manufacturing Co., Ltd., and Watson, E. A. Aug. 9, 1920. Automatic circuit-breakers.-Means for automatically controlling the connection of a generator on a motor vehicle with the battery so that the connection is broken when the generator voltage is inadequate, comprises a spring-mounted wound armature a carrying an insulated contact e which is pressed into engagement with the generator contact f by hand and is retained in the closed position by the attraction of the pole-pieces i of the permanent magnet j if the generator supplies current. The generator current passes to the contact e, through the armature winding d, the other end of which is connected to the armature, and through the plate-spring b to the battery h. In the closed position of the circuit-breaker, the head lamps o and the tail and side lamps p can be supplied from the generator by operating the push-piece n to bring the contacts m into engagement with contacts k, thereby completing two parallel circuits, one through the armature and the permanent magnet and the other through the post c. When the voltage of the generator falls off, the resulting reversal of current in the winding d of the armature causes its release. The armature is provided with a magnetic shunt q to prevent demagnetization of the permanent magnet on reversal of current in the winding d. When the armature is released, the lamps may be supplied from the battery alone, but the headlamp receives a diminished current through the resistance l, thereby reducing the demand on the battery.
Patent GB-679542-A (GB)
Title: Improvements in high drafting devices for textile fibres
Inventor: GOSHAWK ERIC REGINALD
IPC: D01H5/56
Filed: 1948-09-04
Abstract: 679,542. Textile drafting apparatus. FINE SPINNERS & DOUBLERS, Ltd. Aug. 26, 1949 [Sept. 4, 1948], No. 23324/48. Class 120(ii) In order to stabilize the position of the line of contact between the two front rollers of a drafting device despite movements of the bottom roller during rotation, means are provided to create an opposite movement of the axis of the top roller to that taken bv the bottom roller. The front cap bar neb is formed in two parts N', which is fixed, and N<SP>2</SP>, which is movable. Front part N<SP>2</SP> is mounted on a rocker V, pressed by springs against a pin p on an adjustable rod J, mounted in a bracket B attached to the cap bar b. The lower part of rocker V is normally pressed against a land b<SP>2</SP> of the bottom roller B' and irregularities in the movement of roller B' bring about a movement in the opposite direction of the upper roller T'.
Patent GB-186050-A (GB)
Title: Improvements in shafts for golf clubs and the like
IPC: A63B53/10
Filed: 1922-08-29
Abstract: 186,050. Lard, A. E. Sept. 15, 1921, [Convention date]. Golf clubs; handles; shafts. - A shaft for golf clubs and other instruments and tools comprises. a wooden core having a series of longitudinal ribs between which are secured wooden filler strips of a radial depth equal to the depth of the grooves between the ribs. The filler strips contact directly with the core.. In the form shown in Fig. 3, a star-shaped core 1 of hickory is filled in with triangular strips 6 of bamboo or whalebone secured by pegs or screws and wrapped at intervals if desired. When strips of bamboo are used the natural skin surface is retained for the outer surface of the strips. The grooves 2 wherein the strips fit diminish in width and depth towards the lower end of the shaft. At the lower End the strips extend into the socket of the club head; at the upper end the strips have shoulders 7 and are embraced by a handle driven on to a taper 10. The handle may be bored axially to reduce the weight, or the handle may be formed by extending the core and strips. The shaft may be circular in cross-section. The lower end of the core may be polygonal as shown in Fig. 16, and be enclosed in shouldered strips 21 which fit into a polygonal socket 24. The core may be ribbed so as to form grooves which interlock with the strips. Examples of such cores are shown in Figs. 18 and 22 with some of the strips 28 in position.
Patent GB-342662-A (GB)
Title: Process for the preparation of primary and secondary amines
IPC: C07C209/18
Filed: 1929-07-30
Abstract: Amines are prepared by heating a primary or secondary alcohol with ammonia or a primary amine in the presence of a hydrogenation catalyst other than nickel.  Copper, cobalt and iron are mentioned as suitable.  Examples are given of the preparation of cyclohexylaniline and cyclohexylamine by heating cyclohexanol under pressure with aniline and ammonia respectively in the presence of copper.
Patent GB-1065665-A (GB)
Title: Process for producing a photo-mechanical printing plate
IPC: B41N1/10
Filed: 1964-06-05
Abstract: 1,065,665. Photo-sensitive materials used to produce a photo-mechanical printing plate. T.I. ARCHER. June 5, 1964, No.23627/64. Headings G2C and G2M. Photo-mechanical printing plates are produced by degreasing a polished stainless steel plate, electrolyzing the plate in a phosphoric acid bath, copper plating in an acid copper bath and coating the copper plated steel plate with a non-aqueous light-sensitive solution, placing the plate with a negative in a frame and exposing to sunlight or arc lamps removing the unexposed areas, first with petrol and subsequently with diacetone alcohol and trichlorethylene, etching the copper background with a solution of iron perchloride of 38-45‹ BÚ. The specified light-sensitive solution is polyvinyl cinnamate, 1, 2 benzanthraquinone, hydroquinone and cinnamic acid in xylene, toluene and diacetone alcohol mixture. After exposure, the plate may be dyed before development and after etching, the hardened resist may be removed by mechanical scrubbing to leave a copper image.
Patent GB-392899-A (GB)
Title: Improvements in and relating to pen nibs
IPC: B43K1/02
Filed: 1931-08-21
Abstract: 392,899. Pen-nibs. WINDISCH, G., Kapellen-on-M³rz, Steiermark, Austria. Aug. 21, 1931, No. 23551. Convention date, Sept. 2, 1930. Void [Published under Sect. 91 of the Acts]. [Class 146 (iii).] In a pen-nib having a spring arranged between the point portion and the shank, a semicircular spring 9 is stamped from the shank, and widens out at the front and merges into the point 10, and the edges 7 of the shank adjacent the spring are supported against the edges 6 of the point portion when the writing pressure exceeds a predetermined amount.
Patent GB-392033-A (GB)
Title: Improvement in and relating to a fixing device for electrical switch covers and the like
IPC: H02B1/42
Filed: 1932-08-24
Abstract: 392,033. Switch covers. WATSON, A., 7, Gravelly Hill, North, and WOOTTON, H. A., 94, Wake Green Road, Moseley, both in Birmingham. Aug. 24, 1932, No. 23641. [Class 38 (v).] A fastening device for a switch cover comprises an angle bracket D having a part D<3> in screw-threaded engagement with a screw C passing through the cover B and entering a plain hole in the base. The lower end of the member D is enlarged as at D<1> so as to be just capable of passing through the hole in the base. Thus when the part D<1> is inserted and laterally displaced by the screw C it cannot be withdrawn and serves to hold the cover in place. In a modification, Fig. 6, the member D is of inverted U-shape having the ends turned outwards. The screw passes through the top of the member between the limbs, thus forcing them outwards into engagement with the sides of the hole in the base.