baber/WOPTO huggingface dataset:
Patent GB-567978-A (GB)
Title: Improvements in or relating to cased screw fans and the like
IPC: F04D29/36
Filed: 1943-09-02
Abstract: 567,978. Screw propellers. DAVIDSON & CO., Ltd., AGAR, A. A., and MACFARLANE, D. Sept. 2, 1943, No. 14366. [Class 114] [Also in Group XXVI] A hollow screw fan biade, increasing in width from tip to root, is formed of a number of sections of aerofoil form threaded on and welded to a pin L located so that the centres of gravity of the sections are so placed that the centrifugal force and the bending forces along the blades due to the air thrust are counterbalanced. The blades may be strengthened by internal ribs K, and may be mounted on the hub by means of a spigot S carrying a threaded bolt T and nut X. By loosening X, the blade may be angularly adjusted. In another form, a spigot on the base N of the blade is clamped between the two halves of the hub by means of transverse bolts. In another form, the sections of the blade are connected by a curved central longitudinal rib.
Patent GB-820092-A (GB)
Title: Improvements in or relating to extrusion presses
Inventor: HOOKER ERIC JOHN
IPC: B21C26/00
Filed: 1955-05-18
Abstract: 820,092. Extruding. SOUTHERN UNITED TELEPHONE CABLES Ltd. May 18, 1956 [May 18, 1955], No. 14395/55. Class 83 (4). The ram 5 of a metal extrusion press has its working face 8 surrounded by a metal ring 7 or sleeve maintained under circumferential tension. The ring 7 is preferably shrunk on to the working end of the ram, which may be provided with a spigot, Fig. 1 (not shown). A metal sleeve 9 of greater radial thickness than the ring is compressed against a cross-head 10 for the ram. The ring and sleeve prevent tensile stresses being set up in the ram and causing its premature failure. In another embodiment, Fig. 4, the ram has a frusto-conical head 14 which receives a corresponding seating on the end of a sleeve 15 which is compressed between said head and a cross-head 16 whereby the lower end of the sleeve is placed under circumferential tension. An outer sleeve 18 may be secured to the end of the ram by welding. The ram is of particular use in an extrusion press of the kind described in Specification 394,427 wherein the press container is fed with molten metal from a feeding vessel mounted above the container. In this case the outer sleeve 18 always extends above the level of the moten metal in the sealing vessel.
Patent GB-1468184-A (GB)
Title: Multi-functional fluid control valve assembly
IPC: B25D9/26
Filed: 1974-04-01
Abstract: 1468184 Fluid-pressure control circuits AUSTRALIAN IRON & STEEL Pty Ltd 1 April 1974 [12 April 1973] 14402/74 Heading F1P [Also in Division F2] In the circuit shown in Fig. 1, a motor 9, which drives a rock-drill, is fed through a valve 6, a line 18 and a line 12 in a flow-divider 5 whilst a drill-feed motor 10 is driven through a valve 8 and a line 13. An adjustable orifice 22 determines the flow in the line 13. This orifice is in a valve 17, Fig. 2, and is normally held at a maximum by a spring 23. When the drill, driven by, the motor 9, encounters hard rock, the pressure in line 18 rises This rise is fed via line 19 to a piston 20 of the valve 17 and acts to progressively close the orifice 22 thus decreasing the rate at which the drill is fed into the rock. An anti-stall valve 24, Figs. 1, 4, has an orifice needle 33 which is lifted from its seat to return fluid to the reservoir if the pressure in a passage 36 rises above a pre-set limit due to the drill engaging hard rock. A screw 35 provides the pre-set load on a spring 30A. Valves 6, 7, 8 are held in position by detent devices and valve 8 is automatically returned to its retract position when the drill feed reaches the end of its travel thereby causing a rise in pressure in the feed line 13A. When the drill feed is fully retracted an overload valve 39 opens. Safety relief valves 40, 41 are provided in case the feed rate is not reduced. A ram 11 locks the drill pillar between roof and floor in a mine. Fig. 3 shows the spool valve 8 with the detent device 37 and relief valve 39. A member 61 is forced against a seat 62 by a spring 63, the pressure of which is adjusted by a screw 64. When the motor 10 has reached the end of its travel, pressure rise through a bleed 78 lifts member 61 off its seat so that spring 52 can move the spool 45 to the null position. Relief valve 39 is a poppet valve. The anti-stall valve is also incorporated. A pressure rise in inlet 99, due to the drill approaching stall conditions, acts on piston 93 to open valvemember 94 against a spring 97. Screw 101 adjusts the latter.
Patent GB-257664-A (GB)
Title: Improvements in steam or motive power rotary engines and pumps
IPC: F01C1/07
Filed: 1925-06-04
Abstract: 257,664. Cory, E. June 4, 1925. Movable-abutment type.-The pistons F<1>, F<2>, F<3> of a rotary engine or pump of the geared vane type are caused to approach and recede from one another by means of two eccentrically mounted loose rings H, H joined by bolts I provided with rollers J which pass through slots in the pistons. For expansive working a valve N is closed.
Patent GB-1143947-A (GB)
Title: Method and apparatus for handling bakery products and other articles
IPC: A21C15/00
Filed: 1966-04-01
Abstract: 1,143,947. Endless conveyers. LANHAM MACHINERY CO. Inc. 1 April, 1966 [7 April, 1965], No. 14559/66. Heading B8A. A transfer device between mutually perpendicular endless belt conveyers 16, 64 comprises an endless belt 26 extending around a series of rollers 28, 30, 34, 36 and a plate 33 which plate is alternately movable backwards and forwards across the conveyer 64 to transfer articles 1 from the conveyer 26 to the conveyer 64. The conveyer 26 is driven by the roller 30 and the belt tension is maintained by the weighted idler roller 28, movable in a vertical direction as the plate 33 moves backwards and forwards. The plate 33 is moved on wheels 38 running on rails 40 by a double-acting pneumatic cylinder 42 connected through an endless chain 48 and sprockets 46, 54, 56 to chains (57). (58), Fig. 5 (not shown), connected to the plate. The forward motion of the plate is the same as the speed of the conveyer belt 26 so that articles thereon are fixed relative to the plate. On reaching the fully extended position of the plate, a switch 62 is actuated to reverse the pneumatic cylinder and return the plate at a rate substantially greater than the forward rate and thus discharge the articles 1 over the roller 34 on to the conveyer 64. On reaching the fully retracted position of the plate, a switch (80) is actuated to reverse the pneumatic cylinder 42 and repeat the cycle. A plate 90<SP>1</SP> fixed at one end 92<SP>1</SP> and overlapping the movable plate 33 at the other supports the first part of the conveyer run of the belt 26 when the plate 33 is in the forward position. The conveyer belt 66 is driven at such a speed that the spacing between successive transverse rows thereon is constant and the end of the conveyer beneath the transfer conveyer 26 is movable in a vertical direction by pneumatic jacks 78 to lower the conveyer 64 when the conveyer 26 is moving forward and to raise the conveyer 64 to just beneath the conveyer 26 when said conveyer is moving backwards and discharging the articles. This permits tall articles from the previous discharge to be beneath the conveyer 26 when the latter is moving forward. The jacks 78 are operated by switches 62 (80) sothat the movements of conveyers 26, 64 are synchronized. The spacing of the articles in the longitudinal direction on the transfer conveyer 26 may be changed by varying the relative speeds of the conveyers 18, 26 and the transverse spacing may be effected by replacing the conveyer 16 by a series of conveyers which diverge on the approach to conveyer 26 (see Fig. 11, not shown). Articles 1 are aided between the conveyers 16, 26 by a driven roller 82. To ensure the articles are perpendicular to direction of travel on the conveyer 64, the conveyers 26, 64 may be inclined to each other about the vertical axis at an angle less than 90 degrees to overcome the movement of the conveyer 64 during the discharge movement of conveyer 26.
Patent GB-240126-A (GB)
Title: A process for revivifying activated charcoal used in the purification of fermentation carbon dioxide
IPC: C01B31/08
Filed: 1925-06-04
Abstract: Activated charcoal which has been used in the purification of fermentation carbon dioxide is revivified by passing steam at a temperature of approximately 100 DEG  C. through the bed by means of a hot gas, e.g. air, nitrogen or carbon dioxide at a temperature of 50 to 150 DEG  C.  The removal of absorbed impurities during the first part of the operation is hastened by circulating steam through pipes in contact with the charcoal, the charcoal being finally cooled by circulating cold water through the pipes.  The process may be carried out by means of the apparatus described in Specification 240,127.  Specifications 218,974, 227,405, and 229,236 also are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes the process as applicable to the revivification of absorbent materials in general.  This subject-matter does not appear in the Specification as accepted.
Patent GB-567276-A (GB)
Title: Improvements in lighting fittings embodying a linear light source
IPC: F21S8/00
Filed: 1943-09-07
Abstract: 567,276. Electric light fittings. REVO ELECTRIC 'CO., Ltd., and REEVES, F. H. Sept. 7, 1943, No. 14603. [Classes 75 (ii) and 75 (iv)] In a lighting fitting embodying a fluorescent tubular lamp or other linear light source b, the top a<1> of the inverted trough reflector is formed with apertures a<2> so shaped that the light passing to the ceiling in any plane containing the longitudinal axis of the light source is substantially inversely proportional to the cube of the cosine of the angle of inclination of the plane to the vertical, a substantially uniform illumination of the ceiling being thereby obtained.
Patent GB-452673-A (GB)
Title: Improvement relating to carpenters' wooden planes
IPC: B27G17/02
Filed: 1935-05-20
Abstract: 452,673. P l a n e s. WRANEK, V., 63, Osnaburgh Street, Euston Road, London. May 20, 1935, No. 14697. [Class 61 (ii)] A carpenter's plane has the sole recessed at 4 in front of the plane iron to receive a removable and replaceable throat piece 5 secured by means of screws 8 engaging countersunk slots 7 so as to be adjustable.
Patent GB-547870-A (GB)
Title: Improvements in vapour and liquid contact apparatus and packing therefor
IPC: B01J19/32
Filed: 1941-11-15
Abstract: 547,870. Treating liquids with vapours and gases. FOSTER WHEELER, Ltd. Nov. 15, 1941, No. 14720. Convention date, Nov. 16, 1940. [Class 55 (ii)] Packing for fractionating columns or other vapour and liquid contact apparatus consists of sheets of material with capillary openings which seal with the liquid being treated and formed with upturned edges 16 contacting with the wall 10 of a column to prevent the liquid from flowing down the wall out of contact with the packing. The sheets which are of the kind described in Specification 451,014 are formed with pyramidal indentations 12, and with vapour openings 13 arranged in staggered rows.
Patent GB-1254395-A (GB)
Title: Herbicidal compositions
IPC: A01N43/647
Filed: 1970-03-26
Abstract: 1,254,395. Herbicides. AMCHEM PRODUCTS Inc. 26 March, 1970 [28 March, 1969], No. 14743/70. Heading A5E. Dry powder herbicidal concentrates for dissolution in water comprise a homogeneous mixture of at least 3% by weight of dried pregelatinized cold-water-swelling starch, and an amount of 3-amino-1, 2, 4-triazole and a water-soluble thiocyanate such that there are from 0.5 to 1.25 parts by weight of thiocyanate per part by weight of 3-amino-1, 2, 4-triazole. The starch, which may be prepared from corn, potato or rice starch, and which may have a moisture content of from 8 to 15% by weight, may be present in an amount from 4.5 to 20% by weight. The thiocyanate may be an alkali metal, e.g. Na or Li, alkalineearth metal e.g. Ca, or ammonium thiocyanate. The concentrates may also contain an inert filler such as silicon dioxide or aluminium oxide, and/or sodium sesquicarbonate, and/or wetting agents, and/or surfactants and/or other conventional inert excipients. The concentrate may include or may be incorporated into or combined with a dry herbicidal formulation containing Atrazine, Simazine, Diuron, Prometryne, Linuron, Monuron, Siduron, and/or Bromacil.
Patent GB-865413-A (GB)
Title: Gas fuel supply system for internal combustion engines
IPC: F02M21/02
Filed: 1959-04-30
Abstract: 865,413. Mixing air and gas; regulating. BENDIX CORPORATION. April 30, 1959 [June 9, 1958], No. 14794/59. Classes 7(2) and 7(6). A gaseous fuel carburetter has a supply pipe 46, Fig. 2, controlled by a suction operated valve 48, a main metering orifice 58 leading to a passage 60 supplying the main nozzle 62 situated in a Venturi 22, and an idling orifice 66 supplied from the passage.60 through a restriction 72, the valve 48 being actuated by a pair of connected diaphragms 34, 32, subjected in chamber 38 to the suction at the Venturi 22 and in the chamber 40 to the suction at the idling orifice. The rear face of diaphragm 34 is connected to atmospheric pressure through a passage 74. The fuel is preferably liquified petroleum gas contained in a tank 10, Fig. 1, and passed through a pressure control valve 14 to a vaporizer 12 from which the gaseous fuel flows to the carburetter 16. In a modification, Fig. 3, the diaphragms 321, 341, may be moved manually by a knob 88 to open the supply valve 481 for priming and fuel is supplied to. the nozzle 62<SP>1</SP> through the main metering orifice 72<SP>1</SP> and through a suction operated power-enrichment valve 102.
Patent GB-637718-A (GB)
Title: Improvements in and relating to torque transmitting universal joints
IPC: F16D3/224
Filed: 1946-05-16
Abstract: 637,718. Universal joints. CULL, W., and SCOTT MOTORS (SALTAIRE), Ltd. May 16, 1946, No. 14802. [Class 80 (ii)] In a constant velocity joint wherein the torque is transmitted through a series of balls a engaged in a meridian race groove b<1> in a spherical inner member b on one shaft f, and in a groove c<1> in a hollow spherical outer member c secured to the other shaft, a cage d locating the balls being positioned between the members b, c, the arcs of the ball contact tracks in cross-section, Fig. 3, are centred at points on predetermined pressure lines e<2>, and have radii greater than the radius of the balls a. The root portions c<5> of the grooves are thus out of contact with the balls, and may be arcuate as shown or recessed. The, grooves b<1>, c<1> are eccentric with respect to the members b, c being concentric with points 11, 12 spaced equally on opposite sides of the joint centre O. Cage control means for maintaining the axis of the cage at equal angles with the shaft axes comprises a spherical sector collar h secured to the shaft f, on internally spherical shroud c<8>, the spherical surfaces having generating centres at 14 and 15 respectively and an annular control device j, k, m, located between the collar and the shroud and having corresponding spherical surfaces. The member m which may slide relatively to members j, k is kept in contact with the cage d by springs m<2> disposed between the flange ml and member k. A modification of the connection between the members j, k, m, comprises opposed ball race grooves j2, k2, having 45 degree flanks, in the members j, k, and a series of balls n in said grooves located in apertures m<3> in the member m. In another modification of the connection, a lever q, Fig. 8, ball shaped at the ends and centre is utilised. A further modification comprises a roller located in an aperture in the member m and having a tooth or a series of teeth on opposite sides thereof engaged in tooth recesses in the members j, k. Specification 637,780 is referred to.
Patent GB-145963-A (GB)
Title: Improvements in driving mechanism for bicycles, tricycles and the like
IPC: B62M1/00
Filed: 1919-06-12
Abstract: 145,963. Elliott, E. E., and Armstrong, D. D. June 12, 1919. Tricycles.-A child's tricycle consists of a framework 1 supporting the seat 6 and mounted on a steering-wheel and two rear-wheels. A treadle driving-mechanism is used.
Patent GB-183309-A (GB)
Title: Bolt and socket fastenings
IPC: E05B63/12
Filed: 1921-05-28
Abstract: 183,309. Gibson, J. C. May 28,1921. Sliding bolts.-A sliding bolt d is secured in shot position by a lever a in the socket member c engaging a groove g near the end of the bolt which is rounded to lift the lever a automatically when shot. The lever is held in the lifted or closed position by a blade spring j, Fig. 6, engaging the lever. The fixing-screws for the bolt casing and socket are inserted through holes b, f in the barrel parts.
Patent GB-526788-A (GB)
Title: Improvements in or relating to rollers for spinning textile fibres
IPC: D01H5/74
Filed: 1939-05-18
Abstract: 526,788. Rollers for spinning machines. FREEDLANDER, A. L. May 18, 1939, No. 14865. Convention date, Feb. 23. Drawings to Specification. [Class 120 (ii)] [Also in Group V] The cover of a roller of a spinning frame, which may be fixed directly on to the metallic core, is made from a synthetic rubber comprising methyl rubber. The methyl rubber is mixed with a filler e.g. claysulphur, a plasticizer, and an accelerator and formed into a plastic mass which is extruded to form a tubular member ; a sleeve of the desired length is cut from the tubular member, secured on the roller, vulcanized and then buffed. A suitable rubber composition is given.
Patent GB-696422-A (GB)
Title: Improvements in or relating to belt conveyors
IPC: B65G39/16
Filed: 1950-06-14
Abstract: 696,422. Endless belt conveyers. MITCHELL, F. G. June 13, 1951. [June 14, 1950] No. 14898/50. Class 78 (i). Means for aligning a conveyer belt 21 comprising a roller unit built up of rollers 20 supported by brackets 24 on a base plate 25 rotatable about a vertical axis is characterised in that the lateral rollers 20 are provided with integral parts 22 of larger diameter than the parts of the rollers on which the belt normally runs. When the belt wanders to one side it presses against the bevelled face 23 of one of the rollers so as to cause the unit to pivot about a vertical axis whereby the belt is moved towards a central position. A spring 30 tends to maintain the roller unit in its normal central position.
Patent GB-1514452-A (GB)
Title: Turbomachinery
IPC: F01D25/26
Filed: 1977-04-07
Abstract: 1514452 Cooling turbomachines CARRIER CORP 7 April 1977 [5 May 1976] 14969/77 Headings F1G and F1T A turbomachine, e.g. a waste gas turbine 22, includes a casing end wall cooling assembly comprising radial walls 42, 44 defining a chamber 46 containing a radial baffle 64 having circumfer-  entially spaced holes 68 at its periphery such that high pressure cooling fluid, e.g. steam, supplied through openings 54 expands into the chamber, flows radially outwards, through holes 68 and then radially inwards to exit through annular gap 77 into space 90. The latter communicates with atmosphere via the machine exhaust passage (36), Fig. 1 (not shown).
Patent GB-626700-A (GB)
Title: Improved arrangement for monitoring the frequency of an alternating current
IPC: G01R23/02
Filed: 1946-05-17
Abstract: 626,700. Frequency measurements. STANDARD TELEPHONES & CABLES, Ltd., and GARFIELD, W. L. May 17, 1946, No. 15016. [Class 37] Means for measuring or measuring and indicating the rate of change of frequency of an alternating current is effected by a double comparison of the frequency being monitored with time, the first comparison being effective to give a measure of the instantaneous frequency while the second comparison is effective to give a measure of the rate of change of frequency. In the particular example shown, the alternating current to be monitored drives a synchronous motor 1 fitted with a phonic wheel 2 which by means of a device 3 coupled to an audio amplifier 4, a trebler 5, two aperiodic doublers 6 and 7 and a band-pass filter and limiter 8 for removing unwanted harmonics, serves to produce an alternating current of between 11,760 and 12,240 cycles per second for a monitored alternating current of between 49 and 51 cycles per second. A stable crystalcontrolled valve oscillator 10 generating 117.1 kilo cycles per second produces through an amplifier and limiter 11 and a frequency divider 12 a frequency of 11,710 cycles per second. The two frequencies are fed to a mixer 13 the output of which is the difference of the two frequencies, other components from the mixer being separated out by a low-pass filter 14 having a cut-off frequency of 1500 cycles per second. The difference frequency is then converted into a D.C. potential, the intensity of which corresponds to .the value of the difference frequency and instruments 17 and 18 are arranged to give a measure of the instantaneous value of,. and the rate of change of, this voltage and hence a measure of the frequency and the rate of change of the frequency of the alternating current being monitored. Specification 617,269 is referred to.
Patent GB-848569-A (GB)
Title: Improvements in or relating to stuff refiners
IPC: D21D1/30
Filed: 1957-05-11
Abstract: 848,569. Disc mills. HETT, W. May 11, 1957, No. 15042/57. Class 59 In a refiner of the type having at least one pair of grinding or milling discs rotating relatively to one another in a housing having a central feed and a spiral outlet, each disc having concentric annular ridges located between annular depressions and chordal, -preferably radial, ribs or knives, and the depressions of one disc of a pair being displaced relative to those of the opposed disc of the pair, the operative edges of the ribs or knives of each disc lie between the plane defined by the apices of the annular ridges and the plane defined by the bottoms of the depressions. As shown, stationary and rotary discs 3, 5 are each provided: with annular depressions 13 between which extend annular ridges 14; and the operative edges of knives 12, which are embedded in radial incisions in the discs, extend approximately to the half-depth points of the depressions 13. The discs are provided with additional radial knives 17, 18. In a modification, the depressions are of angular profile. In a further modification, the feed pipe communicates tangentially with a cylindrical housing in which a motordriven grinding or milling roller co-operates with a rotatable comminuting sleeve having an eccentric bore to enable the tapering feed space-between the sleeve and th grinding roller to be adjusted by turning the sleeve.
Patent GB-541862-A (GB)
Title: Alkaline detergents
Inventor: CHARLES SCHWARTZ
IPC: C23G1/16
Filed: 1940-04-03
Abstract: 541,862. Detergents. HALL LABORATORIES, Inc. April 3, 1940, No. 15123/41. Convention date, May 1, 1939. Divided out of 541,861. [Class 91] The compositions are identical with those uf Specification 541,861 excepting that the water soluble salt of barium or strontium is replaced by a water soluble salt of arsenic or antimony. The preferred salts comprise arsenic chloride, iodide or fluoride and antimony chloride, fluoride or tartrate. The arsenic or antimony salt is added in an amount between 5-20 per cent. by weight of the silicate.