baber/WOPTO huggingface dataset:
Patent GB-1017417-A (GB)
Title: Improvements in or relating to dust separators
IPC: B04C5/28
Filed: 1963-02-22
Abstract: 1,017,417. Centrifugal separators. H. BRANDT, and A. KRITZLER, [trading as APPARATEBAU ROTHEMUHLE BRANDT & KRITZLER]. Feb. 22, 1963 [March 6, 1962], No. 7250/63. Heading B2P. [Also in Division F2] In a multi-cell dust separator comprising a number of cyclones 2, Fig. 5, each having a tangential inlet or, as shown, an axial inlet 15 for dust-laden gases, the diameter of the dust outlet 18 is less than one-third the diameter of the entry aperture of the clean gas outlet tube 5 disposed axially of the cyclone opposite the outlet 18 and the height h of an imaginary cylindrical extension of the tube 5 to the point where it impinges on the conical portion of the cyclone is not less than eight times the radius of the extension. Such relative dimensions are found to prevent sucking of dust from the hopper below the outlet 18 through one of the cyclones and into the clean gas channel 9 in the event of non-uniform loading of that cyclone. The cyclones are mounted by flanges 3 on a support 1, Fig. 7 (not shown), and are housed in a casing 6 the bottom part of which provides the hopper. The dust-laden gases enter through a channel 7 and are whirled by vanes 4 mounted in the inlet 15. The channel 7 is separated from the clean gas channel 9 by a partition 8 against which each of the ends of the outlet tubes 5 is sealingly retained by means of a wedge 11, Fig. 6 (not shown), passing through a saddle 17 fixed to the partition 8 and engaging with a ring 16 welded to the tube end and compressing a sealing gasket 10. The channel 7 is sealed from the dust hopper by a layer of asbestos 12 placed between the flanges 3 and the structure 1 and covered by a layer 13 of resilient cement composition. The cyclones may be made of cast-iron or hard manganese alloy. The dustladen gases are preferably directed to enter each cyclone tangentially and downwardly at an angle not greater than 45 degrees with the cyclone axis. The separator may be connected to a boiler flue.
Patent GB-557712-A (GB)
Title: Improvements in or relating to generators of electric oscillations
IPC: H03B5/10
Filed: 1942-05-29
Abstract: 557,712. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., Mc- WHIRTER, E. M. S., and DUNN, R. H. May 29, 1942, No. 7304. [Class 40 (v)] A three-phase high-frequency oscillator comprises three similar amplifying stages each jointly controlled by the output of the other two stages through substantially non-reactive couplings. In a multi-phase oscillator an odd number of stages are arranged in tandem in a closed ring and interconnected so that each stage is jointly controlled by two other stages. The Figure shows two grid valves with the grids separately fed from potentiometers P1, P2, P3 arranged in the output of the other stages so that no phase change is introduced by the potentiometer and with the tappings such that equal outputs result from the voltages fed to each grid of any one stage. In a modification two similar triode valves are used in each stage with their anodes and cathodes connected in parallel with one of the voltages fed to each grid when a single tapping on each potentiometer suffices. Adjustment so that the two outputs from each stage are equal in amplitude and equally spaced angularly may be effected by a three phase oscilloscope as described in Specification 557,711, [Group XXXVI].
Patent GB-904754-A (GB)
Title: A tap-changing switch for transformers
IPC: H01H3/50
Filed: 1959-03-03
Abstract: 904,754. Locking switches; indicators for switches. LICENTIA PATENT-VERWALTUNGS G.m.b.H. March 3, 1959 [March 3, 1958], No. 7318/59. Class 38 (5). [Also in Group XXXV] The shaft 10 of a tap-changing switch is provided with a locking and releasing device comprising a release rod 16 slidable axially inside shaft 10 and having a driver pin 18 to turn locking member 20 about a pivot pin 21 and so move locking projection 23 out of a notch 24, thus freeing notched disc 25 fixed to shaft 10. A pawl 26 on member 20 co-operating with a notch 27 in a detent wheel 28 simultaneously releases this wheel which carries an indication of the position of the switch visible through windows 30. Instead of a disc 25, notches in shaft 10 may be engaged by the locking member. In another arrangement (Fig. 2), pin 18 passes through a longitudinal slot in locking member 20, biasing spring 33 being arranged under release rod 16.
Patent GB-347396-A (GB)
Title: An improved process for preparing artificial silk filaments
IPC: D01F2/10
Filed: 1930-03-06
Abstract: Cellulose xanthates.-In the production of filaments or other products from viscose raw starch such as rice starch or a suspension thereof in water is added to the viscose to produce a diminution in the lustre of the finished product.
Patent GB-992292-A (GB)
Title: Improvements in structural members
IPC: E04C3/04
Filed: 1963-02-25
Abstract: 992,292. Structural members and joints. G. BLUMENTHAL. Feb. 25, 1963, No. 7417/63. Heading E1K. [Also in Division B3] Frames particularly for shop fronts or showcases are constructed of channels having internal longitudinal serrations 5 with which co-operate screws connecting the channels together. The channels are butt jointed and the screws 8 traverse one channel and their screwthreaded ends engage the serrations in the channels in line with their length or when attaching a covering sheet to the frame, at right angles to their length. The webs 2 of the channels have extensions 6 which engage by mitre joints.
Patent GB-211723-A (GB)
Title: Improved prepayment mechanism for gas meters and the like
IPC: G07F15/08
Filed: 1923-03-15
Abstract: 211,723. McIntyre, J., and Milne & Son, Ltd., J. March 15, 1923. Addition to 205,596. Coin action, mechanical-connection; pricechanging mechanism. - In prepayment mechanism for gas meters and the like as described in the parent Specification, the coin inserted into a slot in the disc M. which is secured to the disc N carrying the toothed wheel O and forms the coin holder as described in Specification 208,033, is received by jaws on a pin H carried by a sliding bar I, which is guided in slots in a pin K and in the tube containing the spring Q. The pin H passes through a cam slot in the plate G which is rotated by the handle E and travels in two grooves 1, 2 in the price-changing disc B. The grooves are provided with stops and are connected) by a gate or passage through which the pin H passes under the action of the cam slot in the plate G. The corresponding movement of the bar I pushes the coin forwards and the coin acting on the disc N causes the wheel 0 to mesh with the wheel P. When the coin is discharged, the spring Q disengages the wheels. Adjustment of the price-changer B varies the point at which the pin H enters the outer groove 2 and causes the wheels to mesh. Instead of grooves the price-changer may be provided with a race as shown by the shaded portion of Fig. 1.
Patent GB-685671-A (GB)
Title: Method of making welded tubing from strip metal stock
IPC: B21C37/15
Filed: 1951-04-02
Abstract: 685,671. Making tubes. BUNDY TUBING CO. April 2, 1951 [May 8, 1950], No. 7520/51. Classes 83 (ii) and 83 (iv). [Also in Group XXVIII] Angular bending; shearing; welding; drawing.- A method of making tubing from flat strip comprises bending the strip into 8- shape, Fig. 8, welding the longitudinal joints and severing the strip to form two tubes of non-circular cross-section. Strip 1 is fed from a reel 2 to bending rolls 4, 10, 18, 21, 24, 27 which bend it to the shape shown in Fig. 8 in which parts a, b of the strip are curved and end portions 15a, 15 and an intermediate part are straight. The strip passes to a resistance welding apparatus 37 with electrodes 30, 31, 34, 35 and electrodes 32, 33 connected to the secondary of a transformer 36. Rotary shear-blades 38, 39 then sever the welded strip into two tubes of non-circular cross-section. The tubes may be used in the non-circular shape for attachment to sheets in heat-exchange apparatus or may be drawn to circular shape by pulling through dies 40, 41, by rolls 48, 49. The tube may be cooled by a watercooled device 45.
Patent GB-1255053-A (GB)
Title: Slot die for the production of multi-layer laminates
IPC: B29C48/08
Filed: 1969-02-12
Abstract: 1,255,053. Extrusion dies; laminated sheets or films. SIAMP-CEDAP REUNIES. 12 Feb., 1969 [13 Feb., 1968], No. 7541/69. Headings B5A and B5B. In the production of extruded laminated sheets or films, materials from channels 5-8 in a slot die 1 flow respectively along internal slots 9b, 9a to an outlet slot between die lips 11a, 11b, the thickness of the various single and combined streams being adjustable by respective flexure of die lips 10a, 10b on rotation of screws 12 or die lips 11a, 11b on rotation of screws 13. Screws 12, 13 may be replaced by, or operate in combination with, hydraulically and/or pneumatically operated pistons. The die lips may be individually provided with heating or cooling means. Additional channels 19 may be provided to regulate flow in slots 9b.
Patent GB-942546-A (GB)
Title: Glow discharge vacuum getter pump apparatus
IPC: H01J41/20
Filed: 1960-03-03
Abstract: 942,546. lon-geffer pumps. VARIAN ASSOCIATES. March 3, 1960 [March 23, 1959], No. 7583/60. Addition to 883,189. Heading H1D. In the ion-getter pump of the parent Specification (a) the cathodes are spaced apart by sheet metal spacers 25, Figs. 2, 4, with struck-out ears 26, and (b) the anode support rod 18, Figs. 3, 5, passes within an insulator 23 which is spaced a greater distance from rod portion 18<SP>1</SP> than from the rest of the rod, to increase the leakage path. The envelope 14 is made cup-shaped and closed by a flat member 15. There are two end cathode plates of TiCrZrGd or Fl, the anode and cathode preferably being made of the same material. Four cathode spacer plates 25, Fig. 3, of stainless steel have ears 26 struck therefrom and apertures 20 to permit easy evacuation. A sputter shield 27 of stainless steel protects the glazed alumina ceramic cylinder 23 from material sputtered from the cathode. The anode lead 18 and housing cylinder 19 are of Ni plated stainless steel and members 21, 22 are of "Kovar " (Registered Trade Mark). The envelope is made up of a cup 14 and plate 15 of stainless steel. A horseshoe permanent magnet 29 produces a magnetic field. The magnetic field may be unidirectional or alternating or time varying unidirectional e.g. a bevotron accelerator field. The pump electrodes are energized by D.C. or A.C. The pump may be used to evacuate linear accelerators and electron microscopes.
Patent GB-564120-A (GB)
Title: Improvements in the driving arrangements of rotary reels for sifting granular and like materials
IPC: B07B1/42
Filed: 1943-05-13
Abstract: 564,120. Toothed gearing. SIMON, Ltd., H., and BAGG, H. A. May 13, 1943, No. 7643. [Class 80 (i)] [Also in Group II] In centrifugal reels, the sieve b is driven from the water shaft a by gearing comprising a toothed wheel i freely mounted, preferably on bearings h, on an eccentric g of the shaft, and engaging at one point with a larger internal gear-wheel. n attached to the sieve through a sleeve c. The toothed wheel i carries laterally projecting pins and rollers k which engage circular apertures m in a disc provided with a brake drum m<1>. A band brake o engaging the drum m<1> holds the disc or allows it to rotate freely whereby the drive is transmitted to the sieve 'with a reduced speed or is interrupted respectively. The gearing is enclosed in a casing e which is supported on a stand f and constitutes an oil-tight enclosure. Oil-scoops v are attached to the eccentric g.
Patent GB-661490-A (GB)
Title: Mounting for shafts and the like
IPC: F16D1/10
Filed: 1949-03-21
Abstract: 661,490. Lathe centres. BAKER, F. C., and SPENCER, E. G. March 21, 1949, No. 7654/49. Class 83 (iii). [Also in Groups XXI, XXIII, XXIV and XXVIII] A shaft 14 on a lathe headstock 11 supports and drives the shaft 15 of a grinding-wheel 16 through a coupling comprising two diametrically opposed V-grooves, similar to the groove 17, on the end of the shaft 14, registering with similar but 90 degrees circumferentially displaced grooves on the end of the shaft 15, which is maintained in position by a centring tailstock 12. The edges 22 between the grooves can be slightly rounded off. The tail-stock spindle 13 may have the usual coned end for engaging a central recess in the shaft 15, or may interengage the shaft through a second coupling of the kind described above, when the shaft may be reversible.
Patent GB-1023074-A (GB)
Title: Improved bracket support structure
IPC: A47B57/42
Filed: 1963-02-26
Abstract: 1,023,074. Label holders. I. W. SHELL. Feb. 26, 1963 [March 14, 1962], No. 7733/63. Heading B8F. [Also in Division A4] A label holder in the form of a moulded strip 12<SP>1</SP>, with a forwardly projecting channel portion 12b<SP>1</SP> to receive a label; is attached to a shelf 26a and an outer frame member 24 of a shelf assembly (see Division A4) by means of wall extensions 12c<SP>1</SP>, 12d<SP>1</SP>. The lower end of the frame member 24 may be upturned to support the lower end of portion 12b<SP>1</SP>.
Patent GB-1292612-A (GB)
Title: Improvements relating to earth working implements
Inventor: PRIME DEREK ARTHUR
IPC: E02F9/28
Filed: 1969-02-13
Abstract: 1292612 Excavator teeth J C BAMFORD EXCAVATORS Ltd 30 Jan 1970 [13 Feb 1969] 7743/69 Heading E1F In a recess in the forked rear portion of a digger tooth can be positioned a releasable clamping means that will, when the forked portion of the tooth embraces a digging edge of an earth working implement at any desired point along the edge, bear against the implement and the tooth to urge a part of the tooth into engagement with the blade at a position rearwardly of the edge. The means may be a wedge 17 driven into a socket extending rearwards from the front of the tooth or a resilient pin or spring coil inserted into a recess in extending transversely of a limb of the forked portion of the tooth. The engaging parts of the tooth and blade may be a projection or a recess. On one surface of the edge there may be provided pairs of tooth-locating projections 30.
Patent GB-1440055-A (GB)
Title: Card game
IPC: A63F1/00
Filed: 1975-02-25
Abstract: 1440055 Football card game R ALMOND 25 Feb 1975 7755/75 Heading A6H A pack of sixty cards for playing a football game comprises four sets of six green cards and four sets of six red cards identified by letters and bearing legends concerned with the scoring of goals, eight cards bearing a circle and a legend concerning start or resumption of play and four close of play cards having a letter and a digit thereon.
Patent GB-924724-A (GB)
Title: Magnetic material with a rectangular magnetisation loop
IPC: C21D8/12
Filed: 1961-03-03
Abstract: A magnetic material having a rectangular hysteresis loop is produced by cold working and annealing an alloy of the following composition: .Co.25-35% .Cr.10-20% .Fe.balance  The cold working is preferably by more than 90% and the annealing performed at 400-650 DEG  C.
Patent GB-1140507-A (GB)
Title: Apparatus for the continuous delivery of liquid from a steriliser
Inventor: CLARK REGINALD THOMAS
IPC: A61L2/02
Filed: 1966-02-23
Abstract: 1,140,507. Bottling. ALFA-LAVAL A.B. 16 Jan., 1967 [23 Feb., 1966], No. 7937/66. Heading B8T. [Also in Division F1] Bottle, &c. fillers are supplied with milk, &c. from a sterilizer through a flow equalizing tank, air, &c. under pressure from a compressor passing through a constant pressure valve and a sterilizer to the space in the tank above the milk, &c. as the level falls and escaping through valves as the level rises, as described in Specification 1,069,701, the apparatus being modified in the following respects. (a) The sterilizing filter may be replaced or added to by an air incinerator which electrically heats the air, &c. passing to the tank to 500‹ F. (b) The tank may be positioned downstream, instead of upstream, of the bottle, &c. fillers. (c) The tank may have a common liquid inlet and outlet, instead of an inlet and a separate outlet. (d) The tank may be vertical, instead of horizontal. (e) The bottle, &c. fillers may be connected independently to the tank. (f) The bottle, &c. fillers may be connected to a ring main feeding liquid from the tank. (g) The tank may be under partial vacuum, the milk, &c. being delivered by a pump to the bottle, &c. fillers.
Patent GB-1180406-A (GB)
Title: Brake Lining and Cooling Means
IPC: F16D65/80
Filed: 1967-02-20
Abstract: 1,180,406. Band brake. CATERPILLAR TRACTOR CO. 20 Feb., 1967 [1 March, 1966], No. 7940/67. Heading F2E. A brake comprising a drum 10, a brake band 11 encircling the drum, and means to provide a body of liquid coolant for immersing at least part of the brake, a friction lining for the brake band, the lining having grooves arranged in separate groups of parallel grooves, each group angled from a longitudinal axis of the lining to permit the grooves of each group to intersect those of another and thereby form parallel rows of spaced lands on the lining, the rows 15 of lands being at an angle to the direction of travel of the surface of the brake drum to avoid the effect of tracking in the contact between the drum and the lands, an area on the lining void of lands adjacent an orifice 21 extending through the land. The lining may be formed in separate sections and the intersecting groups of parallel grooves may cross the lining at slightly different angles to produce a pumping effect induced by rotation of the drum, the pumping effect being greater towards one edge of the lining section than the other.
Patent GB-217654-A (GB)
Title: Improvements in or relating to systems of raising liquids
IPC: F04F1/12
Filed: 1923-03-20
Abstract: 217,654. Allen, T. G. March 20, 1923. Direct air-pressure apparatus, automatic.- In a system of raising liquids, of the kind described in Specification 181,762, two systems are combined with the operating chambers A, A<x> situated between the high level water 1 and the low level water 2, and are so interconnected that, when one chamber A or A<x> is filling, the other chamber is discharging. The chambers A, A<x> are connected alternately to the high level liquid by pipes a, a<x> and E<2> controled by an automatic valve E. Air pipes B, B<x> connect the chambers A, A<x> to the closed chambers C, C<x>, which are connected to the liquid to be raised by valved pipes c, c<x>, and to the delivery reservoir by valved pipes d, d<x>. Excess air pressure in the pipes B, B<x> escapes through the pipes d, d<x> near the end of the discharge of the chambers C, C<x>. Two or more sets of chambers C, C<x> at different levels may be used with an open reservoir between them, into which the lower chambers deliver and from which the higher chambers draw. The pipes B, B<x> open into both sets of chambers. In another form, in which two sets of chambers C, C<x> at different levels are used, the intermediate reservoir is omitted, and the air pipe B is connected to the lower chamber C and to the upper chamber C<x>, while the pipe B<x> is connected to the lower chamber C<x> and to the upper chamber C. In another form, the pipe B opens into the two chambers C, C, while the pipe Bx opens into the chambers C<x>, C<x>, and the lower chambers C, Cx discharge respectively into the upper chambers C<x>. C. The valve E mav be operated by rack and pinion actuated by a lever carrying two buckets which are alternately filled bv overflow from the chambers A, Ax when nearly full. Each bucket has a small aperture through which it empties while in the lower position. In the Provisional Specification it is stated that the apparatus may be fitted with the automatic air release device described in Specification 207,838.
Patent GB-1423671-A (GB)
Title: Process for the production of a hinge pin and hinge pin produced by the process
IPC: B21K13/02
Filed: 1973-02-19
Abstract: 1423671 Upsetting; making hinge pins ED SCHARWACHTER KG 19 Feb 1973 [21 Feb 1972] 8029/73 Headings B3H and B3A [Also in Divisions E1-E2] A hinge pin is produced from bar stock 2, 21 by feeding the stock either to a set of tools 3, 5, 6 for sequential operation on the bar stock and shearing the blanks therefrom or to a set of tools, Fig. 2, for shearing of a blank 20 from the stock and upsetting. The tools produce a head 19, 28 or an intermediate enlargement on the blank. In the first embodiment an embossing tool 3 of an eccentric press notches the bar stock and knurls the head 13. The blank is separated from the stock by a shearing tool 6 operated by the same platen 15 of the press as the tool 3. The head has an oval or polygonal cross-section. In the second embodiment the head is produced by an upsetting punch 29, Fig. 2, operating on a blank 20 in a die 25. The initial bar stock is fed to the deforming and shearing tools by straightening rollers 8, 23. The bar stock has one or more axial grooves (33), Figs. 3 and 4 (not shown), and if the head is oval its major axis may be perpendicular to or parallel to the line between the grooves if the stock has two grooves. The head may be knurled (44), Figs. 5 and 6 (not shown), or be provided with notches (42), Fig. 7 (not shown).
Patent GB-640743-A (GB)
Title: Improvements relating to electric toasters
IPC: A47J37/08
Filed: 1948-03-18
Abstract: 640,743. Thermal switches. HOOVER, Ltd. March 18, 1948, No. 8104. Convention date, March 18, 1947. '[Class 38(v)] [Also in Group VI] Toggle links 116, 118 with connecting spring 117 are used to open switches 103, 107 and also to disconnect a bridge 120 from its contacts. When the bimetallic strip 128 heats up and moves to dotted line position, it kicks over the toggle link 118, to lie against a stop 133. The bimetallic strip is provided with a small heating coil 155 to cause a delayed return of the strip.
Patent GB-609473-A (GB)
Title: Improvements in or relating to tractor and like wheels
IPC: B60B15/02
Filed: 1946-03-15
Abstract: 609,473. Vehicle wheels. ANDRE RUBBER CO., Ltd., and GILLETT, T. March 15, 1946, No. 8111. [Classes 144 (i) and 144 (ii)] Tractor and like wheels are fitted with groundengaging strakes consisting of arch-section metal base-plates each formed with one or more ridges which are covered with rubber. In the form shown in Figs. 2 and 4, the plates B are formed with a single rib, the rubber covering E having two spaced ground-engaging ribs E<SP>1</SP>. In this form, the strakes are arranged in two staggered rows to provide a continuous rubber tread-surface. Fig. 8 shows a modification in which the strake, adapted to extend obliquely across the full width of the wheel rim, has two ribs Fl with spaced rubber treads G<SP>1</SP>. In all cases, the base-plates are bolted to the wheelrim.
Patent GB-1392285-A (GB)
Title: Shoe upper conforming machines
IPC: A43D25/08
Filed: 1971-03-27
Abstract: 1392285 Boots BRITISH UNITED SHOE MACHINERY CO LTD 27 March 1972 [27 March 1971] 8243/71 Heading A3B [Also in Division B2] A progressive side-lasting machine such as that described in Specification 1132042 is provided with adhesive applying means which feeds the adhesive in a rod form along a helical path through a melt chamber in step with operating requirements. Feed of adhesive to melt chamber (Fig 4) The rod R of adhesive is urged up a tube 145 by means of a feed member 149 having two feed pawls 151 which grip rod R through slots 147 in the tube 145. The member 149 is reciprocated, once for each side-lasting operation, by piston rod 155. On downward movement of member 149, the feed pawls 151 skid on rod R which is held by check pawls 185. The rod R then passes along a flexible tube 69 to the melt chamber. Melt chamber and nozzle The melt chamber comprises (Fig 3) copper tubing 66 helically coiled about and brazed to a metal cylinder 64 into which is inserted a heater 65. Rod R enters the tubing 66 and molten adhesive passes along passage 42 to nozzle 6 which is controlled by a needle valve. The valve needle 28 seats at 30 and is operated via a lever by a piston-and-cylinder in step with the operating cycle. In a modified melt chamber (Fig 5, not shown) the helix of copper tubing is contained in a block of cast aluminium and the heater is placed in a bore in the block so as to be disposed within the coils of the helix.