baber/WOPTO huggingface dataset:
Patent GB-337708-A (GB)
Title: An improved device for facilitating the mounting of a counting train in measuring instruments
IPC: G06M1/02
Filed: 1930-02-25
Abstract: 337,708. Landis et Gyr Soc. Anon. March 5, 1929, [Convention date]. Counters actuated by revolving-mechanism; mounting and supporting devices.- To facilitate the precise replacement of a counting-train with respect to its driving-mechanism in a measuring - instrument, a plate 8 is adjustably secured to the counting - train support 2 to abut against the edge 11 of the measuring-instrument. When the support 2 has been adjusted, and clamped by the screws 3, with the driven wheel 5 in exact gear with its driver, the plate 8 is placed against the edge 11 and then secured to the support 2 by tightening up the screws 6. Protuberances 9 and a projection 10 entering a recess in the edge 11 provide against displacement.
Patent GB-125500-A (GB)
Title: Improvements in Locking Hairpins.
Inventor: BURKE JAMES PATRICK
IPC: A45D8/06
Filed: 1918-04-15
Abstract: 125,500. Burke, J. P., and George, E. C. April 15, 1918. Hair-pins.-A hair-pin of the type in which the prongs are adapted to be interlocked by rotation after insertion in the hair, comprises two substantially straight legs, connected by a loop 10 forming a portion of a helix, and provided with bends 12, 13 which are helical in form. In operation, after insertion, the ends are held and the head twisted in a clockwise direction to cause the bends 12, 13 to interlock.
Patent GB-1151451-A (GB)
Title: Tent, for the Beach in particular
Inventor: WALRAVE LOUIS
IPC: E04H15/30
Filed: 1967-02-10
Abstract: 1,151,451. Tents. L. WALRAVE. 10 Feb., 1967 [18 Feb., 1966], No. 6448/67. Heading E1A. A tent comprises a ground sheet 15 fixed to posts 11, 12, 213, 14 which are secured to a block 16 by. a plurality of end-pieces regularly spaced there about and capped by a covering 10 of synthetic plastic material. Each post is in two parts 11A, 11B interconnected by a plug connection and an outer sleeve 18, the two parts in the disconnected state being held together by an elastic cord. The covering is reinforced as at 44, 45 and provided with a folding flap 147 for retaining stabilising sand in position.
Patent GB-254769-A (GB)
Title: Improvements in delivery mechanism for printing machines
IPC: B65H29/04
Filed: 1925-03-10
Abstract: 254,769. Waite, F., and Waite & Saville, Ltd. March 10, 1925. Addition to 234,207. Delivery apparatus.-In a modification of the arrangement described in the parent Specification, in which the sheets are delivered from the printing-press to a pile g, Fig. 1, by grippers 4 on an endless chain 2 passing over a cylinder 5, the rear ends of the sheets are supported while passing ever the cylinder 5 by oscillating members 10. The members 10 are curved to the surface of the cylinder 5 and are attached to arms 12 which are loose on the shaft d of the cylinder and are oscillated, to raise the members 10 into position to receive a sheet and to lower the members to guide a sheet over the cylinder, by a cam 22 operating through links 13 - - 20 controlled by a spring 2'4. Cross-bars 8 or cords, tapes, &c. extending between the chains 2, or cords, tapes, &c. extending between each set of grippers 4, normally support the rear end of the sheet, in the latter case springs or the like being inserted to take up any slack. The cross-bars 8 may be tubular, and constructed so as to be readily detachable by providing a fixed plug 31, Fig. 3, at one end carrying a pin and a similar spring- pressed plug 31<b> at the other end, the chain rivets being hollow so as to allow the pins on the plugs to enter.
Patent GB-525518-A (GB)
Title: Improvements in or relating to settings for continuous vertical retorts
IPC: C10B3/00
Filed: 1939-02-28
Abstract: 525,518. Retort furnaces. KEMP, A. V. Feb. 28, 1939, No. 6548. [Class 51 (ii)] In a retort furnace setting comprising a series of vertical retorts 10 oblong in cross section with their major axes arranged in parallel lines and vertical heating flues 13 arranged on each side of the retorts, the supply of air and gas to the heating flues on each side of the retorts is separately controlled by means located outside the setting while the combustion products from each heating wall or from groups of heating walls pass into separate collecting flues controlled by dampers in the end wall of the setting. Gas passes by separate flues 22 controlled by dampers 23 outside the setting to the mixing chambers 14 at the base of the flues 13, and the control of gas to supply to the individual flues may be effected by dampers 24. Secondary and tertiary air are supplied to the mixing chambers and flues by pipes 25, 28 having control valves 26, 29 below the setting. The combustion products pass from the flues 13 through openings 15 controlled by dampers 16 to collecting flues 17 provided in the end wall with dampers 19.
Patent GB-416012-A (GB)
Title: Improvements relating to the connection of flexible cables to electric couplings, lamp holders, switches and the like
IPC: H01R13/56
Filed: 1933-03-04
Abstract: 416,012. Electric - lamp holders. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. March 4, 1933, No. 6617. [Class 39 (ii).] A flexible lead having a nonconducting cord therein to take tensile stress is anchored to a lamp-holder &c. by knotting the cord to a loose anchoring member e that fits against shoulders b<2>, b3 or over a central pillar b<1> in the cavity b. An extension e<1> adjacent the entry d has holes e<2>, e3 for knotting the cord, and the member may bear indications of the correct connections for the terminals. The member e may also act as a separator between the earth and live leads as described in Specification 320,793, [Class 38 (i)]. Reference has been directed by the Comptroller to Specification 291,376, [Class 38 (i)].
Patent GB-467863-A (GB)
Title: Improvements in or relating to agitating apparatus
IPC: B01F15/00
Filed: 1936-03-05
Abstract: 467,863. Agitating-apparatus. CROSBY, W. E., BURNETT, A. C., and ALUMINIUM PLANT & VESSEL CO., Ltd. March 5, 1936, No. 6656. [Class 86] In an agitating-apparatus for liquids in which the agitator is carried on a shaft projecting through the wall of the vessel, the agitator is made readily removable by fitting its shaft with a cut-away portion for engaging yielding retaining means. The agitator b, bearing against a sleeve f, is carried on a shaft c passing through a sleeve d on the end of which is a spring-influenced star wheel i engaging in a recess in the end of the shaft. The star wheel is carried by a cage m driven by a crank-pin r and the shaft is furnished with a flat p mating with a corresponding flat in the cage.
Patent GB-1091184-A (GB)
Title: Control means for mercury arc rectifiers
IPC: H02M7/15
Filed: 1965-02-18
Abstract: 1,091,184. Converting. ALLMANNA SVENSKA ELEKTRISKA A.B. Feb. 18, 1965 [Feb. 21, 1964; April 10, 1964], No. 6987/65. Heading H2F. To assist deionization of a mercury arc valve after it has carried an excessive fault current the negative grid bias is increased, so as to increase the deionizing grid current. A transformer 9 (Fig. 1, not shown) in the main current path induces, when the main current is falling, a voltage to aid the grid bias voltage source 6. Alternatively (Figs. 2 and 4, not shown) the resistor 7, whose function is to demagnetize the pulse transformer 5 after a grid pulse and whose value is high enough not to shunt the grid pulses excessively, is shunted either by voltage-sensitive resistors or by a thyristor controlled by the secondary of transformer 9. The circuit has a time constant so that the effect continues after the main current falls to zero.
Patent GB-1411412-A (GB)
Title: Process for removing hydrogen sulphide and alkyl mercaptans from fluid strems
IPC: C01B17/05
Filed: 1972-07-27
Abstract: 1411412 H 2 S and mercaptans removed from fluids SOC DES USINES CHIMIQUES RHONE-POULENC 27 July 1972 [28 July 1971] 7017/75 Divided out of 1411411 Heading C1A H 2 S and alkyl mercaptans are removed from gas or liq. streams by contacting the stream with O 2  and an aq. soln. of a water soluble polyvalent metal chelate and an organic amine. The amine may be an alkylamine or an hydroxyalkylamine, particularly monoethanolamine. The polyvalent metal is preferably Fe, Co or Ni. The chelating agent is preferably E.D.T.A. or N-hydroxyethyl-ethylene diamine triacetic acid. Other metals, amines and chelating agents are specified.
Patent GB-579457-A (GB)
Title: Method of and plant for mixing lime and sand for building and other constructional purposes
IPC: B01F15/00
Filed: 1944-04-17
Abstract: Mortar for building and constructional purposes is obtained by a method which consists in delivering mechanically slaked and matured lime of a high calcium content conjointly with dried sharp quartz sand, free from deleterious material to a mechanical mixer or mixers. The lime is hopper-fed to a slaking unit (see Group III) in which it is treated with water and then discharged to pits in which it is allowed to mature, preferably for a few weeks.  The sand, after washing and drying, is fed together with the lime to a mixer (see Group II) in which the grains of sand are smoothly coated with lime to produce a mortar of high workability which will adhere to a trowel.  Reference has been directed by the Comptroller to Specifications 17597/94, [Class 22], and 20534/02, [Class 87].
Patent GB-1482843-A (GB)
Title: Carton blanks
IPC: B65D5/42
Filed: 1975-02-20
Abstract: 1482843 Carton blanks DOLAN CORRUGATED CONTAINERS (BRISTOL) Ltd 20 Feb 1975 7115/75 Heading B8P In a carton blank (Fig. 1, not shown) which consists of a rectangular sheet of material cut and creased to form a plurality of panels and flaps from which a carton may be erected having a bottom panel 10, vertical end walls and vertical side walls 11; the carton also being provided with hand and/or ventilation holes 17, 14 respectively; the end walls are each formed by parallel, foldably connected panels 12 and 19 which together form a double wall; flaps are attached to the ends of the side walls 11 and extend, in the erected carton, between the panels 12 and 19 forming the end walls; and flaps 29 are provided which in the unerected blank lie adjacent the flaps which are attached to the ends of the side walls, and which in the erected carton provide tongues 32 which engage in slots 16 located between the bottom panel and the end panels to lock the carton in its erected position.
Patent GB-313116-A (GB)
Title: Improvements in steam power plants
IPC: F01K7/02
Filed: 1929-03-05
Abstract: 313,116. Akt.-Ges. Brown, Boveri, et Cie. June 7, 1928, [Convention date]. illotor power plant.-In a high-pressure steam power plant in which a reciprocating engine is placed in front of a turbine receiving its exhaust, the reciprocating engine is arranged to drive a compressor, and the compressod medium is used in a turbine which may be coupled to the lowpressure turbine or to its generator.. In the arrangement shown in the Figure, the medium compressed is steam drawn from an intermediate stage of the exhaust turbine 3, and returned after compression, to the first stage of the turbine. The reciprocating engine 2: is of the floating piston type, steam being admitted to the pistons 6, 7 from a boiler 1 by pipes 4, 5. Steam to be compressed is introduced by pipes 10, 11 to the cylinders of the compressing pistons 8, 9, and is forced into the exhaust pipe 12 of the steam engine, and then passes to the turbine. A regulating cam disc 13 is provided. The steam to be compressed may be withdrawn from an accumulator or from a heating system &c. The reciprocating engine may be arranged so that expansion of the high-pressure steam and compression of the used steam may take place in the same cylinder.
Patent GB-668976-A (GB)
Title: Improvements in or relating to face masks
IPC: A41D13/11
Filed: 1950-03-22
Abstract: 668,976. Surgical masks. HOBSON, C. W. March 22, 1950, No. 7158/50. Class 81 (ii). [Also in Group XX] An operating face mask comprises a fabric pouch enclosing the mouth, nose and chin, extending to form corners adjacent the cheek bones, and a pair of supporting arms connected to the corners and fitting around and over the wearer's ears. In one form, one piece of fabric 11, of approximately rectangular form, extends over the front of the face and an approximately triangular panel 12 is sewn to its lower edge. Earpieces which may be elastic or adjustable (see Group XX) engage the upper corners by means of buttons or hooks and keep the mask taut over the face by exerting substantially equal tensions along the upper and lower edges. In a modified form the mask is made of two pieces joined along a line extending from the chin to the cheek bones, (see Fig. 3 (not shown) Specification 614,668 is referred to.
Patent GB-879112-A (GB)
Title: Purification of gases
Inventor: HARTLEY WILFRED
IPC: C10K1/12
Filed: 1957-03-04
Abstract: 879,112. Purifying gases. HUMPHREYS & GLASGOW Ltd. Feb. 14, 1958 [March 4, 1957], No. 7166/57. Class 55 (2). Hydrogen sulphide is removed from a gas containing it by washing with an aqueous alkaline suspension of oxide, hydrated oxide or basic carbonate of iron containing in solution an alkali salt of phosphoric acid, preferably trisodium orthophosphate. In preparing the suspension the iron compound is precipitated in the presence of the alkali salt of phosphoric acid, e.g. by mixing an aqueous solution con. taining tri-sodium orthophosphate and ferrous sulphate with an aqueous solution of sodium carbonate. Specification 673,187 is referred to.
Patent GB-565227-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1943-05-06
Abstract: 565,227. Refrigerating. AKTIEBOLAGET ELEKTROLUX. May 6, 1943, No. 7187. Convention date, May 8, 1942. [Class 29] Absorption systems.-A part of the air-cooled condenser 14 of a continuous cycle inert gas system is arranged in heat conductive relation with the known " pressure vessel " 26 to promote condensation under high atmospheric temperatures. One or more stretches of a finless coil condenser may be spot or line welded to the vessel, and unattached stretches are preferably arranged in different vertical planes in the air stream rising from the absorber 16. The condenser outlet is connected with a U-seal 28 which is connected with a wide bore conduit 27 connected at one end to the pressure vessel and at the other end to the evaporator 15. As shown in Fig. 2, the pressure vessel may be welded to angle members 31 supporting the condenser coils on the rear wall 32 of a cabinet having rearwardly extending side walls 36. The pressure vessel may have surfaceincreasing members welded on to it.
Patent GB-921152-A (GB)
Title: Improvements in and relating to electric switch contact supporting arrangements
Inventor: HART MICHAEL NORMAN
IPC: H01H1/14
Filed: 1959-03-02
Abstract: 921,152. Switch contacts. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 23,1960 [March 2, 1959], No. 7204/59. Class 38 (5). Contacts suitable for use in an air-break or oil circuitbreaker comprise a pair of levers 2, each having a contact surface 1 and being pivoted at 3 to a carrier 4 mounted on the end 5a of a conductor 5 extending through an insulating bushing 6. The latter has a recess 10 accommodating a pair of compression springs 11 whose inner ends engage depressions 12 and whose outer ends fit in caps 13 pivoted at 14 to the levers 2. Depressions 12 and pivots 14 may be replaced respectively by bosses, and knife edges co-operating with depressions in the levers 2. Springs 11 may be replaced by tension springs accommodated in a recess on the other side of the conductor 5. The bushing 6 may be made of a synthetic moulding or casting resin. Each lever 2 may have more than one biasing spring.
Patent GB-766565-A (GB)
Title: Improvements in or relating to the preparation of a purified polyvinyl alcohol
Inventor: MAYNE JOHN EDWIN OAKLEY
IPC: C08L29/04
Filed: 1954-03-12
Abstract: Purified polyvinyl alcohol is obtained by acid catalysed hydrolysis to at least 50 per cen of an aqueous emulsion of a polyvinyl ester or a copolymer containing a predominant amount of polyvinyl ester, in particular polyvinyl acetate, which mixture is then mixed with a miscible aliphatic alcohol or ketone in amount sufficient to effect precipitation.  Alcohols and ketones specified are methanol, ethanol, isopropanol and acetone.  If the acetone is used and the gel is added directly vigorous stirring is necessary.  Preferred methods describe the addition of sufficient acetone to form a "critical gel" (no precipitation) or a "hypercritical gel" (mixture no longer homogeneous), these gels then being precipitated with additional acetone or, alternatively, extruded into acetone to give threads or powder respectively.  The products may be further treated by washing with the alcohol or ketone used and any remaining acid may then be neutralized with alkali.  Alternatively, acetone may be removed by blowing with steam and then neutralizing the aqueous solution obtained.  Hydrolysis may be effected as described in Specification 655,734.  Example 7 describes the use of the products as emulsifiers in the polymerization at pH 3.6 of vinyl acetate using hydrogen peroxide as catalyst, to give an emulsion that may be used in paints.
Patent GB-449704-A (GB)
Title: Improvements in and relating to folding boxes and cases
IPC: B65D5/32
Filed: 1935-03-08
Abstract: 449,704. Boxes. NEWMARCH, H. W., (trading as CAMOMILE SUPPLIES CO.), 36, Camomile Street, London. March 8, 1935, No. 7288. [Class 18] A collapsable box of cardboard, leatherboard, metal, &c., to hold stationery &c., comprises a shell 10 and a creased or hinged member 16 which is attached to the shell at or near one end thereof, and is adapted to lie around four faces of the shell including the two open faces, either inside and/or outside the shell, and a cut away portion 11 in the shell through which the contents of the box is exposed can be closed by a flap 24 on the member 16. The flap slips between the front of the box and guides 26 stitched, &c. to the sides, the guides 26 being set down slightly so that the portion 23 will lie flush with the top edges of the shell when the box is closed. The cut-away portion 11 and the top and bottom edges of the shell may be reinforced by an edging 13 of tape, metal, &c. To collapse the box, the member 16 is withdrawn, which operation is facilitated by the provision of an additional crease 25, and the shell flattened about two diagonally-opposite corners ; and in setting-up the box, the member 16 is attached to the back of the shell by press studs 22, clips, adhesive tape, &c. Specification 394,128 is referred to.
Patent GB-111804-A (GB)
Title: An Improved Saw-knife.
Inventor: WILKINSON ALFRED
IPC: B26B11/00
Filed: 1917-05-22
Abstract: 111,804. Wilkinson, A., and Fife, W. B. May 22, 1917. Saws.-A saw-knife comprises a blade 2 having a knife-edge 3 and a saw-edge 4, the saw-teeth being inclined in the direction shown or in the opposite direction. The handle 5, 6 is constructed so that one part may open out to a nearly vertical position, or may close down on to the other part, according to whether the device is to be used as a saw or as a knife.
Patent GB-435260-A (GB)
Title: Improvements in devices for enabling collapsible tubes and other containers for pastes, ointments, greases, liquids and powders and the like to be opened and closed
IPC: B65D47/26
Filed: 1934-03-09
Abstract: 435,260. Closures for collapsable containers. EVANS, T. F., The Furlongs, Sandringham Road, Ainsdale, Southport. March 9, 1934, No. 7478. [Class 125 (iii)] A closure device for collapsable tubes and other containers for pastes, ointments, greases, liquids, and powder comprises a cap 15 provided with a spiral valve face 21 extending not more than one complete turn and co-operating with a corresponding face 16 on a circular part 14 formed on the tube or on a plug fitting in the tube, the end walls of the faces forming co-operating limit stops. An inturned rib 25 on the cap engages a groove 20 in the tube and thereby serves as tightening means when the cap is turned into the closed position. More than one port may be provided in each face.
Patent GB-913230-A (GB)
Title: Magnetic recording system
IPC: G06F11/14
Filed: 1961-03-01
Abstract: 913,230. Checking arrangements for magnetic data-storage apparatus. BURROUGHS CORPORATION. March 1, 1961 [March 9, 1960],  No. 7513/61. Class 106 (1). Information to be recorded on a magnetic medium is monitored at the recording head by use of two windings (or a split winding) on the head, one being energized for writing and the other sensing the flux set up in the head and passing signals to an amplifier and comparison device to produce an error signal if the signals do not correspond with the input data. Fig. 1 shows schematically an arrangement for NRZ recording in which a flux change at the instant of a clock pulse represents 0, and no change represents 1. Circuit A gates clock pulses during " 0 " periods to switch toggle B and thus the flux in the head, and the pulses from the second winding (which may be positive or negative) at these " 0 " periods are shaped and (in effect) rectified by F, G to provide check pulses for comparator H which also receives the output of circuit A. Comparator H produces an error signal if a pulse appears on line 62 or 64 only. Fig. 4 (not shown) illustrates transistor circuitry for circuits C, D, E, F, G, H, comprising gates, inverters and amplifiers. Amplifier E is arranged to be inoperative for inputs below a certain threshold to prevent operation by spurious signals.
Patent GB-615913-A (GB)
Title: Improvements in rotary wing aircraft
IPC: B64C27/54
Filed: 1946-03-11
Abstract: 615,913. Rotary-wing aircraft. BELL AIRCRAFT CORPORATION. March 11, 1946, No. 7548. Convention date, May 9, 1945. [Class 4] In a rotary-wing aircraft the rotor blades are mounted by means of pitch-change axes in a hub which is universally mounted on the drive-shaft, the pitch-change axes being below the plane of the universal mounting. As shown, the blades 10 are each connected by a bolt 22 and clevis 20 and a yoke 18, the connection being rigidified by a link 24. The yokes 18 are mounted by pitch-change bearings 16 on the outer ring 15 of a gimbal mounting comprising also pivots 32 between upstanding blocks 30 on the ring 15 and an inner ring 34 connected by pivots 36 to the rotating shaft 14. Control and stabilizing means may be as described in Specification 600,013. The blades 10 are linked so as always to have the same pitch by links 60 pivoted at 66 to the yokes 18 and at 64 to a lever 62 pivoted at 63 to the hub 15. Preferably, when the blades are coned, the axes of the universal mounting of the hub are in the same plane as the centres of drag of the blades, so that the drag forces do not interfere with the controls.
Patent GB-195082-A (GB)
Title: Vertical heating furnace for rolled half-products (blooms and billets) or similar metal pieces
IPC: B21J17/00
Filed: 1923-03-16
Abstract: 195,082. Bohler, E. March 20, 1922, [Convention date]. Metal-heating furnaces; charging.-Billets and the like are heated in a vertical furnace, being introduced at the base and discharged at the top. The furnace is heated by gas burners arranged at the top as shown, the flames passing downward among the billets, which are stacked chequerwise, and the waste gases being discharged through lateral openings near the base. The billets are lifted by a ram M, and held by removable supports t<1>, t<2>, while the ram is lowered for the reception' of a new layer of billets. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification in which the supports for the billets extend completely across the furnace and are operable by rack &c. gearing, the billets being introduced upon a wheeled carriage which is lifted by the ram, such carriage being formed to permit of the introduction of the supports below the new layer of billets. This subject-matter does not appear in the Specification as accepted.