baber/WOPTO huggingface dataset:
Patent GB-853393-A (GB)
Title: Improvements in self-priming vertical centrifugal pumps
IPC: F04D5/00
Filed: 1958-11-10
Abstract: 853,393. Centrifugal pumps. SIEMEN & HINSCH. Nov. 10, 1958 [Nov. 18, 1957], No. 36084/58. Class 110 (1). In a vertical centrifugal pump of the partialadmission type, the pump casing is subdivided into a suction chamber, a pressure chamber and a reservoir, the reservoir lying outside the impelling current. In the pump shown (Fig. 3 being a section on the line C-D of Fig. 4), liquid enters a suction chamber 2 from a suction branch (not shown) and passes through a suction port 3 to the impeller 4. The liquid is discharged through a port 10 to a pressure chamber 12 and thence to a discharge branch 13. Any air entrained with the liquid is discharged into the pressure chamber 12 through a separate discharge port 11. A reservoir 8 is filled with liquid from the pressure chamber 12 through an opening 16. When the pump is stopped, the reservoir 8 and a portion of the pressure chamber 12 divided off by a weir 14 remain filled with liquid. Liquid returning from the reservoir 8 through a duct 17 to the suction chamber 2, or through a duct 18 to the lateral working channel 15, or through a duct 19 to the impeller hub, serves to prime the pump when it is started. In a modification, the reservoir 8 is filled from the suction chamber 2 instead of the pressure chamber 12. Specification 407,295 is referred to.
Patent GB-1020962-A (GB)
Title: Loom picker stick check strap assembly
IPC: D03D49/36
Filed: 1964-09-03
Abstract: A picking stick check strap is impregnated with polyurethane to provide stiffened areas and unimpregnated areas 13 are provided to assist flexing of the strap.  The strap may be of leather 14 and nylon webbing 13.
Patent GB-1269135-A (GB)
Title: Improvements relating to the combustion of waste gases
Inventor: FLYNN CHARLES SIDNEY
IPC: D21C11/08
Filed: 1969-07-18
Abstract: 1,269,135. Combusting obnoxious gases; burners. C. S. FLYNN. 18 July, 1969 [22 July, 1968], No. 36307/69. Headings F4B and F4T. Apparatus for combusting waste gases and vapours, and particularly the effluent from a kraft pulp processing apparatus 12, comprises a stack 18 having an outlet to the atmosphere, burner means 22 in said stack receiving a gas-air mixture from an inlet 34, and manifold means 20 adjacent said burner means, said manifold means having an inlet conduit 16 for the waste gases and vapours and a plurality of outlet ports (98, Fig. 2) oriented towards the stack outlet such that a fan 26 in said inlet conduit 16 propels said gases and vapours out of said ports (98) at a velocity exceeding the flame propagation rate thereof, whereby the waste gases and vapours engulf the hot combustion gases from said burner means for complete combustion thereof before exhausting from said stack. The burner means 22 comprises a housing 32 receiving the gas-air mixture through a conduit 34 and a plurality of individual burner units 54, around the periphery of which is located the manifold means 20 (see Fig. 2, not shown). Each burner unit is formed of an outer shell member 60, an inner member 62 defining a chamber 76, a covering of a coarse mesh support screen 68, a fibrous gas dissipating refractory felt layer 70, a relatively fine mesh retention screen 72 and a generally coarse mesh outer retention screen 74 disposed over the chamber 76, and a planar baffle plate 82 in said chamber 76. In operation, the combustible gas-air mixture entering into the chamber 76 through inlet 78 from housing 32, is dispersed around the baffle 82 before passing through the felt covering under pressure, the said felt having myriads of tiny passages all with sufficient resistance to gaseous flow to cause uniform gaseous dissipation therefrom. An igniter unit 90 has its outlet tip 92 disposed immediately adjacent the surface of one of the burner units 54.
Patent GB-1006088-A (GB)
Title: Improvements in or relating to preparation of aromatic carboxylic acids
IPC: C07C51/41
Filed: 1961-10-11
Abstract: A Group Ia metal is heated in an inert atmosphere with an aromatic carboxylic acid or with a Group Ia- or IIa-metal salt thereof to give a mixture comprising a nuclear Group Ia-metal substituted Group Ia or IIa metal salt of an aromatic carboxylic acid and a Group Ia or IIa metal salt of an aromatic carboxylic acid dimer. Specifically, using sodium and sodium benzoate (or benzoic acid) the product comprises a mixture of sodium p-sodio-benzoate and the sodium salt of diphenyl-p,p1-dicarboxylic acid.  Higher temperatures favour the production of the salt of the dimerized acid, particularly when the reaction is carried out in a liquid medium whereas lower temperatures favour the production of the metallo-substituted salt.  Using less than 0.2 equivalent of alkali metal per equivalent of carboxylic acid salt at temperatures between 250 DEG  and 300 DEG  C., the salt of the dimerized acid is preferably formed, but using two equivalents of alkali metal per equivalent of carboxylic acid salt at 100-200 DEG C. favours the production of the metallo substituted salt.  Between 0.2 and 1 equivalent mixtures without a predominating compound are produced.  The reaction may be carried out while grinding the reactants in a ball-mill under an inert atmosphere, e.g. argon, krypton or nitrogen.  If desired, an inert liquid blanket such as mineral oil or other cheap high boiling paraffinic hydrocarbon or an inert ether such as diethylene glycol dimethyl ether, diethylene glycol diethyl ether or tetrahydrofuran may be employed.  Solvents are not usually used for the reaction.  The reactant particles should preferably be of size less than 10 microns.  Carbonation of the sodium p-sodiobenzoate yields disodium terephthalate, from which terephthalic acid may be obtained by hydrolysis. Example IV describes the metalation of sodium naphthoate to give sodium sodio naphthoate and its carbonation to give dicarboxy naphthalene. Example V describes the preparation of disodium sodio-isophthalate and its carbonation to tricarboxy benzene.
Patent GB-981971-A (GB)
Title: Production of polymeric film
IPC: B29C48/11
Filed: 1962-09-26
Abstract: 981,971. Tubular films. E. I. DU PONT DE NEMOURS & CO. Sept. 26, 1962 [Sept. 28, 1961], No. 36514/62. Heading B5B. Self-supporting polymeric tubular film of circular cross-section is continuously converted to an essentially rectangular cross-section and then continuously converted to a deflated flattened condition consisting solely of two plies of film over the entire width of the flattened tubing, the periphery of the rectangular cross-section being substantially equal to that of the circular cross-section, and the line at which the tubing attains a flattened state being perpendicular to the longitudinal axis of the tubing and parallel to a line which bisects the rectangular cross-section into two rectangles which have their longer sides contiguous to one another. The rectangular cross-section may have a length-towidth ratio of from 1: 1 (i.e., square) to 7: 2, and the flattened tubing may be continuously slit at each side edge to form two sheets of film which are separately wound up. In Fig. 1, film F of circular cross-section made by extrusion from annular nozzle 1 is advanced by wind-up roll 2 over an internal shaper 3, of square crosssection, so that the cross-section of the film becomes square. Shaper 3 is mounted on the nozzle 1 by a supporting arm 4. In Fig. 2, circular cross-section tubing extruded through nozzle 1 is inflated with gas from pipe 5 and then passes through an external shaper 9 of square cross-section attached by supporting means 10 to the nozzle 1. The tubing is flattened between idling nip rolls 6, slit by knives 7 and wound up as two separate sheets on rolls 8. Figs. 3, 5, 5a and 5b and 6 illustrate internal shapers and Figs. 6 and 7 external shapers. In Fig. 3, a lightweight metal frame 11 having slightly rounded corners and edges is secured to bracing members 12 and 13 which in turn are fastened to supporting means (not shown). In Fig. 4, the square frame 4, constructed similarly to that of Fig. 3, is attached through elements 15 to an outer bracing frame 16. Figs. 5, 5a, 5b and 6 show designs for internal shapers permitting savings in weight and less rugged supporting means. In Fig. 5, the film is contacted by spring-mounted round-nosed pins 19. In Fig. 5a, the end of pin 19 is slotted and fitted with an idler wheel 24, and in Fig. 5b, the end of pin 19 has a frusto-spherical socket and a freelyrotating ball 26. In Fig. 6 the film is contacted by rollers 27, 28. Fig. 7 illustrates an external shaper in which the film is contacted by rollers 31. Examples describe the production of polyethylene. Film so made shows a reduced tendency to creasing and wrinkling on wind-up.
Patent GB-832243-A (GB)
Title: Improvements relating to recording apparatus
Inventor: NASH LEONARD FRANCIS
IPC: G01D15/24
Filed: 1956-10-29
Abstract: 832,243. Recording-apparatus. EVERSHED & VIGNOLES Ltd. Oct. 23, 1957 (Nov. 29, 1956], No. 36553/56. Class 106 (4). In recording-apparatus, in which an ink ribbon 20 passes between a chart surface 2 and a stylus 4 arranged to move transversely to the direction of motion of the chart surface, a platen 10 of soft iron or other magnetic material is mounted by suspensions 11 on the opposite side of the chart surface 2 from the stylus 4 and is caused to vibrate by two symmetrically arranged electromagnets 13 so as to press the chart surface 2 and ink ribbon 20 against the stylus 4 and thus produce a record mark for each cycle of oscillation. The thickness or intensity of the record mark depends on the amplitude of vibration of the platen 10 which can be controlled from a variable resistance 16 in the line supplying alternating current to the electromagnets 13. In apparatus for recording a number of different variables, an ink ribbon with a number of longitudinal bands of different colour, is shifted to operative position as a selector switch is advanced to switch a different variable in to control the stylus, while temporarily interrupting the marking action by opening a switch 15. If alternating current is not available from a mains supply, it may be produced by a thermionic valve oscillator or transistor oscillator.
Patent GB-1084614-A (GB)
Title: Ring laser operation
Inventor: BOOT HENRY ALBERT HOWARD
IPC: H01S3/083
Filed: 1965-08-26
Abstract: 1,084,614. Lasers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 17, 1966 [Aug. 26, 1965], No. 36621/65. Heading H1C. [Also in Division G1] The beat frequency output of a ring laser rotated about its central axis is detected by a photo-cell and is divided down by a succession of solid state frequency-dividing stages to a final frequency of about 50-60 Hz, this frequency being applied to a synchronous motor which drives a directional reference element, e.g. a mirror, in the opposite direction to the laser rotation. The reference element therefore has either a stabilized position or a known precession. The ring laser may be mounted for rotation on an air bearing and may comprise three gas tubes arranged in a triangle with mirrors at the apices, the excitation potentials being applied through mercury trough contacts. The output light is reflected by mirrors so as to pass above or below the laser structure, and then to proceed along the axis of rotation of the laser, the light being received by a fixed photocell located across the rotational axis. An external light beam may be directed at the directional reference mirror and be reflected back nearly along its original path.
Patent GB-323346-A (GB)
Title: Improvements in the treatment of mixed fabrics or yarns composed of natural celluloses and wool or natural silk
IPC: D06L1/12
Filed: 1928-12-12
Abstract: 323,346. Marshall, W. Dec. 12, 1928. Yarns, treating with liquids ; yarns, mercerizing. -In mercerizing and similar processes wherein mixed yarns composed of natural celluloses such as cotton, flax, &c., and wood or silk are treated with caustic soda or potash, the caustic alkali is prevented from damaging the animal fibres by adding to the cold washing water one or more of the following protecting-agents :-potassium or sodium chloride, sulphate, nitrate or chlorate, sodium thiosulphate, ammonium chloride or sulphate, sucrose, glycerine or glucose. The addition of the protecting- agent also preserves the normal dyeing properties of the wool or natural silk.
Patent GB-641594-A (GB)
Title: Improvements in or relating to retainers for anti-friction elements and ball bearingunits including the improved retainer
IPC: F16C33/42
Filed: 1946-12-12
Abstract: 641,594. Ball and roller cages. SHAFER, J. E. Dec. 12, 1946, No. 36704. Convention date, Dec. 22, 1945. [Class 12 (i)] A cage 11 with spaced pockets 30 for balls 17 or rollers, has intervening flanges 32 which form lubricant reservoirs 38 in communication, at the outer edges of the flanges 32, with the pockets 30 and which flanges 32 serve as lands riding on the outer race 12. The cage is in two parts 11a with webs 31 riveted or spot-welded together at 34. The curved edge at the junction of the web 31 with the flange 32 provides a communication groove 37 between the pockets while a concave recessed region 30a at the outer edge of a pocket gives communication with the reservoir space 38 below the flange 32. Seals are provided consisting of flanged retainers 18, flanged flingers 19 and intervening felt rings 20 preferably bonded to one of the flanged rings 18, 19.
Patent GB-1349762-A (GB)
Title: Rotary positive-displacement flow meter
IPC: G01F3/10
Filed: 1971-08-04
Abstract: 1349762 Rotary fluid-flow meters TOKICO Ltd 4 Aug 1971 [10 April 1971] 36704/71 Heading F1F A positive-displacement meter has rotors 21, 22 fixed to vertical shafts 19, 20 and located in a chamber defined by plates 15, 16 and a housing 17, the shafts being supported radially and vertically by bearings 23ÀÀ26 and 29, 30. To minimize friction balls 27, 28 are lodged between the shafts and the bearings 29, 30, the latter being adjustable. The rotors are synchronized by gear-wheels 36, 37 and coupled to a counter in a housing 12 by gear-wheels 38, 39. In a second embodiment, Fig. 4, the thrust on the bearings 29, 30 is reduced by the inlet and outlet pressures being transmitted to labyrinth packings 61ÀÀ64 for the radial bearings through a passage 53 and an opening 57 and a passage 55 controlled by a screw 58. The pressure differential between chambers 52, 54 depends upon the setting of a valve plate 59 on a rotatable adjusting-shaft 60. The rotors may be replaced by oval gear-wheels, in which event the gear-wheels 36, 37 are dispensed with. The balls 27, 28 may be included in the second embodiment.
Patent GB-879889-A (GB)
Title: Improved magnetically operable lock
IPC: E05B47/00
Filed: 1959-10-29
Abstract: 879,889. Magnetically operated locks. ALLANDER, C. V. Oct. 29, 1959 [Nov. 18, 1958], No. 36814/59. Class 44. A magnetically operable lock comprises two members movable relative to each other, one of which is provided with a number of locking elements movable to several positions, the setting of said locking elements into a predetermined combination of positions by means of a key permitting an unlocking movement of one of said members in relation to the other. Fig. 3 shows the lock mechanism comprising a carrier plate 1 in which are mounted magnetic needles 2, each needle, when pivoted about its waist 5 by means of a key 11 having magnetic poles 10, taking up a position such that a plate 8 may be moved towards plate 1, the points 6 of the needles passing through holes 9 in plate 8. The lock applied to a pushbutton mechanism is shown in Fig. 4 where plate 1, with needles 2 attached in it, is held between a lock housing 12 and a block 17. Plate 8 having an attached stud 88 is pressed into the position shown by a spring 24. When the key 11 is placed in position the needles are moved such that their points contact the walls of cylinders 19 and plate 8 can be moved towards block 17 by a pushbutton 13, a shoulder 25 of which contacts knob 21. If a wrong key is used plate 8 is prevented from movement and when the pushbutton is depressed the spring-pressed knob 21 moves along a bore in stud 88 and a shoulder 27 engages the edge of plate 8 to prevent further movement. In this manner excessive pressure on the points of the needles is avoided. Figs. 6a and 6c show the lock applied to a door having no handles. When the key 11 is pressed against the door in the correct position the needles 2 align with holes in plate 8, this plate first being moved clear of the needles by pushing the door inwardly to make a hook 39 rotate by co-operation with a surface 45. Releasing the key causes a spring 37 to rotate plate 8 and hence hook 39 in order to unlatch the door which is then opened by a spring at 47. The hook assumes its original position on closing the door. A sliding bolt 49 (Fig. 7), spring-loaded to the position shown, may be retracted by a handle 48 when a key has been applied to lock 51. In the position shown a lug 55 prevents retraction of the bolt 49, and a stop 59 takes the load applied by the handle, the lug 55 being held in a recess 56 by means of a projection 58 which presses against an end portion 57 of plate 8.
Patent GB-522844-A (GB)
Title: Improvements in compounding rubber
IPC: C08J3/205
Filed: 1938-12-19
Abstract: 522,844. Indiarubber compositions. WING- FOOT CORPORATION. Dec. 19, 1938, No. 36946. Convention date, March 24. [Class 70] Before mixing softeners and pigments (i.e. fillers, vulcanizing ingredients and the like) with powdered rubber, they are brought to a pastelike condition by the addition of a liquid which is not a rubber solvent, which may be added before, at the same time, or after the admixture of softener and pigment. After mixing, the liquid is evaporated, and the mix is consolidated on a mill or in a mixer. The liquid may be a solvent for the softeners, e.g. alcohol or acetone or may be water in which event an emulsifier is used to obtain uniform mixture of water and softeners in the paste. The softeners are, if necessary, heated to make them liquid before the addition of the liquid. The softeners specified include coconut, pine, pine tar, soya bean and tung oils, lard, tallow and paraffin, stearic, palmitic, oleic, abietic, pimaric and lauric acids, petroleum and wood distillates.
Patent GB-1157783-A (GB)
Title: Photographic Roll Film Camera
IPC: G03B7/06
Filed: 1967-08-11
Abstract: 1,157,783. Retractable cameras. FRANKE & HEIDECKE G.m.b.H. [trading as ROLLEI-WERKE, FRANKE & HEIDECKE]. Aug. 11 1967 [Aug.30, 1966; Sept. 3, 1966; Sept.27, 1966], No.37020/67. Heading G2A. In a roll film camera the lens tube 6 containing the lens unit 9, diaphragm blades 10, and shutter blades 11, can be retracted from the operative position shown in full lines in Fig. 1 to an inoperative position 8, shown in broken lines. In the operative position, the diaphragm is coupled by means 13, 15 to its driving mechanism 17, while the shutter is similarly coupled by means 12, 14 to its driving mechanism 16. When lens tube 6 is retracted, these couplings are automatically disengaged. The two sets of driving mechanisms 16 and 17 are mounted behind the front panel 5 of the camera, in the "dead space" between film chambers 2, 3 and the space occupied by the retracted lens tube. The shutter speed and diaphragm aperture are set by knobs 20, 21 mounted on respective shafts 18, 19. Also mounted on shafts 18, 19 are cams 22, 23, which are followed by the ends of rods 33, 30 respectively. Rod 30 is a lever pivoted at 29 to another lever 24, itself pivoted to a slider 25. Rod 33 is also slidable, and engages against the opposite end 32 of lever 30 so that end (31) which follows the cam 23. Thus the system of rods and levers 33, 30, 24 acts as a differential linkage of the setting knobs 20, 21 with the slider 25, which, via an entrainment device 26, follows the pointer of an exposure meter 28 (see also Fig. 6, not shown).
Patent GB-1532355-A (GB)
Title: Abrasive articles
IPC: C08J5/14
Filed: 1977-06-30
Abstract: 1532355 Abrasive polyimide articles E I DU PONT DE NEMOURS & CO 30 June 1977 [1 July 1976] 37031/77 Divided out of 1532345 Heading C3R Abrasive articles, e.g. grinding wheels, are composed of abrasive particles, e.g. diamonds, embedded in a matrix of a polymer according to the Parent Specification (a linear aromatic polyimide containing keto-groups and of M.W. 3000 to 300,000 cross-linked with a lower M.W. amine-ended linear aromatic polyimide of M.W. 500 to 15,000, the M.W. ratio being from 2 : 1 to 50 : 1.)
Patent GB-1312796-A (GB)
Title: Ceramic porcelain
IPC: C30B29/26
Filed: 1970-07-31
Abstract: 1312796 Dielectric ceramic INTERNATIONAL BUSINESS MACHINES CORP 31 July 1970 [5 Sept 1969] 37043/70 Heading C1J A dielectric ceramic raw material comprises a crystalline component containing oxides of Zn, Al, Si and Zr in which zinc aluminate in spinel form is present, and an amorphous component present to lower the melting-point of the mixture so it can be fired to a ceramic below the melting point of silver and comprising oxides of Ca, K, Mg, Na, Pb, Al, B and Si.
Patent GB-1445332-A (GB)
Title: Sliding panel structures
IPC: E06B3/12
Filed: 1972-08-09
Abstract: 1445332 Frames; sliding doors C A SHELLEY 8 Aug 1973 [9 Aug 1972] 37063/72 Heading E1J A frame member 6 has a cross-section with first and second channels 16, 17 opening in the same direction and having a common side wall, the second channel having inturned flanges 19 at its mouth, a third channel 20 opening perpendicularly to the channels 16, 17 and having the common wall as its base and also having inturned flanges 21 at its mouth. The frame member extends vertically along a panel 9 and a similar horizontal frame member (8, Fig. 2) extends horizontally, the edges of the panel being received in channels 16, (10) and biassed against serrations (13) by spring members (7). Second channels 17, (11) receive respective arms of an angle-shaped corner connector, flanges 19 being received in notch (25) of the connector. Third channel 20 receives attachment member (38, Fig. 3) for rollers (37) and spring biassed guide peg (34).
Patent GB-941229-A (GB)
Title: Wall mounted brackets for supporting wash basins and the like
IPC: E03C1/322
Filed: 1962-10-01
Abstract: 941,229. Wall brackets. AMERICAN RADIATOR & STANDARD SANITARY CORPORATION. Oct. 1, 1962 [Dec. 20, 1961], No. 37097/62. Heading A4B. A bracket, for supporting bathroom fixtures 34 e.g. wash basins, comprises an elongated plate 10 secured to a wall 32 and having upwardly an outwardly extending spaced ears 18, 19 on its upper edge, a tapering flange 36 of the fixtures located behind the ears 18, 19 and firmly secured by yieldable means extending between and centrally of the lower edge of the plate 10 and the flange 36. The yieldable means comprises a resilient angle member 48 engaged behind an indentation 24 in the plate 10 and a bolt 46 extending from the angle member 48 to engage by means of its hooked end 44 a hole 42 in the fixture flange 36. Indentations 20, 22 reinforce the ears 18, 19.
Patent GB-883842-A (GB)
Title: Improvements in or relating to nozzles or jets for rotary sprinklers
Inventor: SANDIE ROBERT DOUGLAS RIDGWAY
IPC: B05B3/06
Filed: 1959-11-02
Abstract: 883,842. Spring-producers. DIE CASTERS Ltd. Nov. 2, 1959, No. 37132/59. Class 69 (3). A nozzle 8 for mounting at the end of a rotary sprinkler arm 7a to cause rotation thereof by jet reaction, has a primary flow passage P and a secondary passage 24 in which a ball 26 freely oscillates into and out of the path of the water stream flowing through the primary passage. The water jet is thereby deviated from the axis of the passage P to provide a reaction driving force of a pulsating nature. The passage 24 is open at its top by a slot 24a and is closed at its outlet end by a plate 27. The movement of the ball may be controlled by a screw extending into the passage 24.