baber/WOPTO huggingface dataset:
Patent GB-1374923-A (GB)
Title: Electrostatic reproduction apparatus
IPC: G03G15/00
Filed: 1972-01-25
Abstract: 1374923 Stripping sheets XEROX CORP 2.5 Jan 1972 [1 Feb 1971] 3464/72 Heading B8R [Also in Division G2] An electrostatic printing apparatus comprises an image-bearing surface 14, on which an electrostatic latent image is formed, either electrophotographically or by imagewise charging, and is developed by application of a toner, together with an electrical detector by which the presence of a copy sheet on the surface 14 can be established if one remains on the surface 14 beyond a point at which the copy sheet should have been removed with the developed image. The surface 14 may be cylindrical and revolve, and be of photoconductive material over a grounded conductive backing. If a copy sheet which has received a toner image while held on the surface 14 is not removed by air blast nozzles 24 it continues with the revolving surface to a corona discharge apparatus 27, which usually imposes an electrostatic charge on the surface and on any untransferred toner to assist removal of untransferred toner. The apparatus 27 is fed by an A.C. source 33A, biased by a D.C. source 33B so that in normal use no negative voltage appears at the terminal A, but if a copy sheet appears between the apparatus 27 and the surface 14 it interferes with the current flow from the apparatus 27 to the surface 14, and causes a portion of the A.C. profile at point A to go negative. A half wave diode rectifier 35 then causes a rectified output voltage to appear at point B and to operate a relay 42 which shuts off the printing apparatus.
Patent GB-1430192-A (GB)
Title: Forming tanks
IPC: H01M4/22
Filed: 1973-01-23
Abstract: 1430192 Forming tank ELECTRIC POWER STORAGE Ltd 22 Jan 1974 [23 Jan 1973] 3496/73 Heading H1B A tank 10 for forming lead-acid battery plates 30 is of fibre glass reinforced resin having an internal step 13 on two opposite sides 11 supporting the panels 20 of a rack. The panels 20 are located by four horizontal rods 21 and spaced by tubular spacers 22, the components 20, 21, 22 being of plastics material. The faces of the panels have ribs 24 locating the edges of the plates 30. Plates of a different width may be accommodated by using spacers 22 of a different length. Plates of a different height may be accommodated by passing the rods 21 through a different set of holes 52 in the panels 20. The plates 30 are inserted in interconnected pairs, each plate having a lug 31. The lugs 31 of the lower plates abut V-shaped grooves 41 in contact bars 40 located in recesses 25 in the panels, the ends of the bars having inverted U-shaped lugs 44 which fit over the rods 21. A wooden beam 14 covered with fibre glass reinforced resin 15 fills the space on each side of the tank 10 beneath the steps 13.
Patent GB-543969-A (GB)
Title: Improvements in operating apparatus for grabs
IPC: B66C3/10
Filed: 1940-02-26
Abstract: 543,969. Cranes and derricks for handling grabs &c. SOC. FRANCAISE DE CONSTRUCTION DE BENNES AUTOMATIQUES. Feb. 26, 1940, No. 3565. Convention date, March 3,1939. [Class 78 (iv)] A single-rope grab 11 is supported and operated from a carriage 12 running on a substantially horizontal guideway 2 mounted on uprights and provided with end stops 24, 25 for the carriage. The winding rope 8 passes over a pulley 7 to a winch and the carriage is returned by means of a rope 27 and counter. weight 30. A crown 19 for operating the grab is attached by a cable 18 to a lever 17 pivoted at 16 on the carriage and having a braking shoe 21 held against the guideway by a light counter-weight 23. Starting from the position shown, unwinding of the rope 8 causes the weight of the grab to bring the lever 17 on to a stop 20, releasing the brake 21 and allowing the carriage to be traversed along the guideway by the counter-weight 30. When the carriage is arrested by the stop 25, the grab is. opened by the crown 19. The grab remains open and is returned by winding the rope 8. Specification 465,981 is referred to.
Patent GB-138177-A (GB)
Title: Improvements in and relating to carburetters
IPC: F02M7/133
Filed: 1919-02-13
Abstract: 138,177. Dodson, E. Feb. 13, 1919. Addition to 125,687. Spray carburettors.-The invention described in the parent Specification consists in inducing into a carburettor having a primary and secondary air supply, an additional fuel supply by the suction of the primary-air supply at or near its period and zone of highest air velocity, i.e. at or near the full throttle-valve opening, and the present invention consists in bringing this additional fuel supply into action at substantially the full throttle opening by mechanical means actuated by the throttle valve. The main fuel supply discharges into the secondary-air tube 30. The additional fuel supply which discharges into the main air passage at 15, is controlled by a valve 52 actuated by the throttle valve 7 through a cam 57, lever 55, and rod 53, or equivalent means such as an eccentric and strap. In a modification, the diffuser-air pipe 45, shown in Fig. 4, of the parent Specification, is adapted to be controlled by a passage in a barrel throttle valve in such a manner that, as the throttle is about to reach its fully open position, the pipe 45 is placed under the suction effect and air is withdrawn from the fuel well. In this modification, the fuel-supply passage 14, 15 may also be included and controlled by the throttle valve. The secondary-air tube 30 may be dispensed with and a nozzle placed at the end of the tube 32, Fig. 4, of the parent Specification. The valve 52 may control the diffuser air.
Patent GB-122944-A (GB)
Title: A New or Improved Method of and Improvements in or connected with the Construction of Metal Boats.
IPC: B63B3/00
Filed: 1918-03-01
Abstract: 122,944. Mechans, Ltd., and Reid, R. L. March 1, 1918, Sheet-metal boats.-Metal boats are made from flat sheets or plates which are made to conform to the lines required by bending in one, or approximately one, general direction. only, the parts on opposite sides of a central keel, viz., the sides and bottoms, consisting of two plates only, or more than two. As shown in Fig. 6, the crosssections are straight from gunwale to chine or bilge, and thence again to the keel. The longitudinal run of the bilge and gunwale rises, as shown in Fig. 2, from the midships, and the sides converge fore and aft. The side and bottom plates may each consist of single plates, or may be built up of two or more parts, as H, H<1> and E, K<1> secured together. The plates are all cut to shape, and two or more similar plates are placed together and drilled off one marking before being bent. The sides and bottom may be connected by longitudinal angle-bars L and stiffened by other angle-bars N, P.
Patent GB-256866-A (GB)
Title: Improvements in or relating to blank holding means for sheet metal drawing presses
IPC: B21D24/04
Filed: 1926-02-09
Abstract: 256,866. Fitzpatrick, H. D., (Marquette Tool & Manufacturing Co.). Feb. 9, 1926. Cupping.-The draw-rings of a press for drawing sheet metal are actuated electromagnetically. The draw-ring 13, Fig. 1, is supported by pins 20 carried by a bar 21 which is connected by rods 22 to the armature 19 of an electromagnet 16, the latter being connected by rods 17 to the head 15 of the press. The magnet may be excited to varying intensities either by a switch 24 controlling a variable resistance or by providing the magnet with a number of windings. The magnet may be energized automatically bv a contact mounted on the press-head. The intensity of the magnetic field may be controlled automatically by a cam 43 which actuates a switch 44 regulating a variable resistance 45 in series with the magnet-winding. In a modification, a stationary magnet may be employed, the armature being suspended from the press-head. An ejector 30 is provided for knocking out the cupped blank. Springs 21a support the draw-ring when the magnet is de-energized.
Patent GB-493680-A (GB)
Title: An improved woven elastic fabric
IPC: D03D15/56
Filed: 1938-02-05
Abstract: 493,680. Woven fabrics. MOORE, B. J. Feb. 5. 1938, No. 3704. [Class 142 (iv)] In an elastic fabric such as webbing, strapping, ribbon or tape having warp threads 10,. some or all of which are of rubber, the weft is locked at one or both edges by a warp knitted chain comprising knitted. loops of a warp thread 12, which may be finer than the ordinary warp threads. The weft may be inserted in double picks. Reference has been directed by the Comptroller to Specifications 119,558, 126,519, and 281,413, [all in Class 142 (ii)].
Patent GB-719479-A (GB)
Title: Improvements relating to gas turbine jet propulsion power units
IPC: F02C7/04
Filed: 1950-11-13
Abstract: 719,479. Axial-flow compressors; jet-propulsion plant. DE HAVILLAND ENGINE CO., Ltd., HALFORD, F. B., MOULT, E. S., and COCKBURN. D. M. Feb. 13, 1952 [Nov. 13, 1950]. No. 3736/52. Divided out of 719,457. Classes 110(1) and 110(3) In a gas turbine jet propulsion plant, air is compressed by a supersonic rotary compressor, from which it issues with an absolute velocity below the sonic value, at least a part of the air being further compressed in a subsonic rotary compressor, the air being divided into two streams, one of which is heated by burning fuel in it and expanded in at least one turbine driving the compressors, while the other stream by-passes the turbine, and both streams are discharged rearwardly through a jet nozzle or nozzles. In the jet propulsion plant shown in Fig. 2, the air flow is divided by annular partitions 53, 54, 57, 43 into two streams. Both streams are compressed by the supersonic compressor 17 of which the inner blading 56, 59 may work at subsonic instead of supersonic velocities. The inner stream undergoes further compression in a multi-stage axial-flow compressor 50 before entering combustion chambers 26 (or a single annular combustion chamber). The combustion gases drive a two-stage turbine 30, 33 and are exhausted through a jet nozzle 34. The outer stream has its whirl velocity removed by guide vanes 44, 45 and 46 and, after being heated by burners 62, is exhausted through an annular jet nozzle 49 surrounding the main jet nozzle 34. Drive shafts 38 for fuel pumps and other auxiliaries pass through hollow radial struts 37. The partitions 53, 54 and 57 may be omitted, so that the division of the flow into two streams takes place after the supersonic rotor 17. To facilitate heat exchange between the inner and outer jets whereby their velocities are more nearly equalized, the air passing through the annular nozzle 49 may be divided into separate parallel streams by means of a corrugated or fluted boundary wall between the nozzle 49 and the main nozzle 34. The inner and outer streams may be discharged through a single jet nozzle. The jet nozzle or nozzles may be of variable crosssection. A reheat burner may be provided after the turbine. Separate drives for the supersonic compressor and the other compressors may be provided. whereby the supersonic compressor is driven faster through gearing or is driven by a separate turbine. Specification 719,457 is referred to.
Patent GB-746620-A (GB)
Title: Ketones of the phenanthrene series
IPC: C08K5/07
Filed: 1954-02-09
Abstract: The invention comprises decahydrophenanthrene-2-ones of the formula <FORM:0746620/IV(a)/1> in which R is hydrogen or methyl.  They are made by catalytically hydrogenating octahydrophenanthrene-2-ones of the formula <FORM:0746620/IV(a)/2> in which R is hydrogen or methyl using metallic palladium as catalyst.  The palladium may be distributed on a carrier such as activated carbon, alumina, diatomaceous earth, silica, barium sulphate, strontium carbonate, calcium carbonate or magnesium carbonate.  Liquid media specified are a solution of an alkali metal hydroxide or alcoholate in an alcohol, alcohols and their ethers, acetone, butanone, benzene, toluene, xylene, ethyl benzene, cyclohexane, and the normally liquid alkanes. The products are useful as plasticizers for polyvinyl chloride and in the preparation of steroidal hormones.  In examples, the following are hydrogenated as above:-unresolved 1.8a-dimethyl-D 6.9.10a(1) - octahydrophenanthrene - 2 - one and its dl-anti-trans, d-anti-trans, l-anti-trans, isomers, and dl - anti - trans - 8a - methyl - D 6.9.10a(1)-octahydrophenanthrene-2-one.
Patent GB-112204-A (GB)
Title: Improvements in and relating to the Controlling of the Unwinding of Yarn from Hanks Carried upon Reels.
IPC: B65H59/04
Filed: 1917-03-16
Abstract: 112,204. Boyd, T. A., Boyd, H. A., and Boyd, J. & T. March 16, 1917, Creel arrangements.-The reel 2 from which the yarn is unwound is provided with a brake wheel 4 and is so mounted that any extra pull upon the yarn withdraws this brake wheel 4 from a fixed brake 8. The reel may be mounted in V-shaped openings 5<1> at the upper ends of counterweighted arms 5 pivoted on fixed arms 7 one of which carries the brake 8. A screw 11 limits the movement of the arms 5. Alternatively, the reel may be carried in fixed standards and the axle rest on surfaces which are slightly inclined so as to cause the brake wheel normally to rest against the brake, which is carried by one of the standards. The reel may be provided with an independent drag weight and drag cord of the usual type.
Patent GB-900880-A (GB)
Title: Improvements in and relating to the cold caustic pulping process
IPC: D21C3/22
Filed: 1960-02-03
Abstract: 900,880. Preparation of paper pulp. CHITTENDEN, A. E. Feb. 3, 1961 [Feb. 3, 1960], No. 3892/60. Class 96. A cold soaking vessel 1 is loaded with, e.g. tropical, deciduous wood chips and may be exhausted by a pump &c. 4 prior to the addition of, e.g. 9 to 13% caustic soda solution from a tank 7, whereupon the vessel 1 is pressurized, e.g. to 100 p.s.i. by the pump 4, e.g. using air drawn through a washer 8 to remove carbon dioxide. After 1 hour, the charge may be left to soak at atmospheric pressure, before discharging with the aid of air in a bottle 12, the chips being then easily refinable. Detergents may be included in the soda solution. Evacuation and soaking may be repeated several times. The top of the vessel 1 may be conical to reduce the area of liquid surface exposed to any carbon dioxide in the air.
Patent GB-451249-A (GB)
Title: Improvements in or relating to hangers for suspending garments in storage
IPC: A47G25/48
Filed: 1935-02-06
Abstract: 451,249. Garment-hangers. BRITISH & NORTHERN TRADING CO., Ltd., 33, Cannon Street, and ISLER, A., 69, Oxford Terrace, Hyde Park, both in London. Feb. 6, 1935, No. 3900. [Class 62 (v)] A reversible hange comprises two identica parts A, B with appro priate holes for th passage of cords F by which they are sus pended from a hook D The weight of the sup ported article causes the two parts to be pressed together. The parts are curved as shown so that sleeveless frocks can be supported in one position of the hanger and the hook has an extension E which on the hanger being collapsed can straddle the parts A and B and keep them together.
Patent GB-470022-A (GB)
Title: Improvements in multi-blade electric switches particularly for wireless receivers
IPC: H01H1/28
Filed: 1936-02-08
Abstract: 470,022. Switch contacts. KERR, K. H. Feb. 8, 1936, No. 3912. [Class 3S (v)] A multi-contact switch for wireless apparatus comprises a series of spring contact blades 1, clamped together with insulating spacing washers 7, by a bolt 4 which serves to mount them on a base 6. The blades are actuated by axial movement of a rod 18 in guides 19 and having a cam surface 17 which acts on an insulating rod 15 which is stepped to engage the free ends of selected contact blades. In order to mount the blades 1 so as to leave an air gap between them and the bolt 4, each blade is formed with a hole 8 and a recess 9, and each washer 7 is formed with opposed recesses 10. During assembly these holes and recesses are engaged by pins on a jig (not shown) which are passed through holes 13 in the base 6 and serve to locate the blades and washers until the bolt 4 is inserted and the unit 14 tightened.
Patent GB-311304-A (GB)
Title: Improvements in the conditioning of air for ventilation
IPC: F24F3/14
Filed: 1928-02-08
Abstract: 311,304. Heenan & Froude, Ltd., and Walker, G. H. Feb. 8, 1928. Air, treating.- Air is dried and cooled by being brought into intimate contact with a liquid absorbent which is cooled bv circulation through a tubular heat exchanger F, the absorbent being passed through one set of concentric tubes of the heat-exchanger and cooling water being passed through the other set of tubes f<1>, Fig. 1. Fig. 1 indicates the heatexchanger in diagrammatic form only. Liquid absorbent, such as calcium chloride solution, is supplied in spray form at a<2>, Fig. 1, in a chamber A and passes downwardly over screens A<1>, and the air to be treated moves upwardly. The solution collects at the bottom of the chamber and is withdrawn by a pump E and passes through the cooler F. In the modification shown in Fig. 2, cooling water enters at j' and leaves at j<2> and passes through the annular spaces between the concentrically arranged pipes h, j. Liquid absorbent enters a chamber G at g, passes over the pipes h, is withdrawn by a pump H', and is cooled by passage through the pipes h. The air passes upwardly in contact with the downwardly directed absorbent and is cooled and dried thereby. Part or whole of the absorbent may be extracted from the apparatus and concentrated before return. The treated air may also be subjected to a humidifying process. Specification 134,256, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-657216-A (GB)
Title: Improvements relating to circulators for steam generators
IPC: F22D7/02
Filed: 1949-02-14
Abstract: 657,216. Promoting water circulation in steam boilers. BRUNDRIT, J. S. Feb. 14, 1949, No. 3952. [Class 123(ii)] In a pulsating-chamber water-circulator a for a steam boiler the outlet end d of the delivery pipe c is tapered or otherwise constricted, e.g. by inserting a Venturi or plain ring therein, and, preferably, its lower inlet end e is flanged or bell-mouthed. The outlet end f of the inlet pipe b is also tapered or conttricted.
Patent GB-1274355-A (GB)
Title: Filter elements for liquid filters
Inventor: TUFFNELL DERRICK PERCIVAL
IPC: B01D36/00
Filed: 1970-01-28
Abstract: 1,274,355. Fuel filter. GENERAL MOTORS Ltd. 19 April, 1971 [28 Jan., 1970], No. 4070/ 70. Heading B1D. A filter element for liquid fuel is made from a strip of filter paper (Fig. 1) to which lines 2, 3 of adhesive are applied on opposite faces adjacent the two respective edges the strip being then pleated to form pleats whose respective sides are sealed together at one end (the front in Fig. 1) but sealed to the adjacent sides of the two neighbouring pleats at the other end (rear in Fig. 1), and the element is then formed into an annulus, with the sealing lines 2, 3 at opposite ends. The annulus is enclosed between inner and outer tubes with respective integral end caps and sealed thereto at its inner and outer peripheries at opposite respective ends. Fig. 5 (not shown) represents this construction with the annulus engaging the inner and outer tubes and the resulting unit clamped between a top head and a bottom sump which collects water droplets, flow being upwards or downwards through the annular element. Fig. 6 shows a more elaborate construction, wherein an additional inner tube 51 is provided, the space between the inner tubes 51 and 10 communicating with inlet or outlet holes 31 in end cap 11 via channels formed by depressions 52, 53, thereby enabling air to be vented from said space. Pleats may be spaced by dimples (not shown) and the paper is impregnated with resin or resin is incorporated in the paper during its manufacture.
Patent GB-442625-A (GB)
Title: Improvements in or relating to dropping bottles
IPC: B65D47/18
Filed: 1935-02-08
Abstract: 442,625. Bottles; stoppers. BOEHM, E., Ernstthal, Thuringia, Germany. Feb. 8, 1935, Nos. 4108, 4109, and 4110. Convention dates, Aug. 7, 1934, Aug. 31, 1934, and Oct. 10, 1934. [Classes 125 (i) and 125 (iii)] A drop bottle is formed with a capillary tube c, Fig. 1, projecting from the neck itself, or from a stopper screwed to the neck, with an adjacent air hole d. In the form shown, the threaded neck b is arranged obliquely for use and may be closed by a cap e, shown dotted. In a modification, the capillary tube c is grooved, and the air hole d is made adjacent the tube. In another modification, the neck b is not threaded but the tube c carries a threaded cap which closes the air hole when tightened up. In another modification, Fig. 5, the capillary c and air hole d are carried in a screwed stopper q. In other modifications, capillary and air holes are formed in a funnel t, Fig. 6, which may form part of the bottle or part of a stopper.
Patent GB-442324-A (GB)
Title: Improvements in and relating to x-ray tubes
IPC: H01J35/26
Filed: 1935-02-08
Abstract: 442,324. Motor driving - arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych,London. Feb. 8, 1935, No. 4141. Convention date, Feb. 9, 1934. [Class 35] [See also Group XL] A motor 70 rotates an X-ray tube 10 through a heat-insulating flexible coupling 72 connected at one side to the motor shaft 70A and at the other side to the anode stem 13.
Patent GB-111032-A (GB)
Title: Improvements in or relating to Mechanism for Feeding Sheet Metal to Punching Machines or the like.
Inventor: LYSHOLM HENRY
IPC: B21D28/26
Filed: 1917-03-22
Abstract: 111,032. Lysholm, H. March 22, 1917. Metal-sheet feeds.-Metal plates or sheets are moved longitudinally to a punch or other tool A on and by rollers which are mounted on a carriage adapted to travel towards and away from the tool. The rollers 12 on which the plate or sheet rests are rotated in either direction by chain gear 13, bevel-wheel 14, toothed wheel 17, and a handoperated lever and detent 18. The carriage 4 has a gap 5a for the punching-machine deeper than the plate being treated and a seat 21 for the operator and is moved by toothed wheels 7 engaging fixed racks 2, the wheels being carried by a shaft 29 rotated in either direction by chain-gear 16, a toothed wheel 19 loose on the shaft 15 and a handoperated lever and detent 20. The punching- machine A is controlled by a treadle 31 and square bar 30 sliding through but moving a lever B. The carriage has supporting wheels 6 and rails 3 and undriven rollers 12. The sheet may be lifted and retained in its adjusted position so as to support the punch which has a slight play and to enable the operator to " feel " when the projection thereon engages the centre punches in the work or templet. This is effected by mounting the shaft 9 carrying the rollers 12 next to the punching- machine in hinged members 22 which can be moved by links 26, shaft 24, and lever and quadrant 28, or by mounting the shaft 29\and the axles of the other wheels 7 in eccentric bushes 33, Fig. 7, rotated by said lever and quadrant. In the latter modification the side portions of the carriage may be hinged to the platform 5.
Patent GB-535913-A (GB)
Title: An improved method of constructing and laying slates
IPC: E04D1/14
Filed: 1940-03-06
Abstract: 535,913. Roofs. MARSDEN, P. March 6, 1940, No. 4188. [Class 20 (iv)] Slates are laid horizontally or vertically and in line in both directions, each slate overlapping the next in both directions to a comparatively small extent leaving a comparatively large exposed surface, two equal portions of the slates, excepting those in the outside rows being cut off diagonally at two diagonally opposite corners, so that inclined abutting corners f, c are provided when the slates are laid, each slate being formed with two nail holes arranged diagonally and in position for nailing it to two adjacent horizontal laths.