baber/WOPTO huggingface dataset:
Patent GB-682638-A (GB)
Title: Improvements in thermostatically operated control mechanism
IPC: F16K31/68
Filed: 1950-09-25
Abstract: 682,638. Thermal switches ; switches held set and freed mechanically. RANCO, Inc. Sept. 25, 1950 [Oct. 1, 1949], No. 23418/50. Class 38 (v) [Also in Groups XIII and XXIX] The thermostatically-actuated mechanism comprises a control device, e.g., a valve 20 controlling the passage from pipe 12 to pipe 13 and actuated through a lever 25 by a thermal capsule 40. One arm 49 of the lever is loaded to open the valve by a spring 48 the tension in which is adjustable through the link 50 guided in the housing slot 69 and engaging a pivot pin 68 eccentric to the axis 58 of a member 56 rotatable by a push-pull wire 53. The rotatable member has cam surfaces alternately engaging on opposite sides of an upwardly projecting portion 80 of the lever arm 49, whereby the valve is respectively held closed or open irrespective of its positioning by the capsule. A spring 77 acting between an eccentric pin 76 on the rotatable member and the housing 29 balances the effect of the tension of the spring 48 and enables the member to stay in any position to which it is moved. The control device may be a switch.
Patent GB-1327334-A (GB)
Title: Container for permitting temperature control of a liquid therein
IPC: A61M5/44
Filed: 1971-04-19
Abstract: 1327334 Blood warming device BAXTER LABORATORIES INC 19 April 1971 [2 March 1970] 23426/71 Heading A5R A container in which blood may be warmed comprises a plastics envelope formed by heat sealing into a tortuous flow conduit 17, an inlet 18 to and outlet 20 from the conduit, the outlet extending into a drip chamber 22 so that when fluid passes into the drip chamber any gas bubbles present separate from the blood. The inlet 18 is connected via tubing 46 and a coupling 48 to a blood supply, and in use blood is passed upwardly through the tortuous conduit 17, which is heated externally, and out through end 30 of the outlet 20 into the drip chamber. The outlet 20 is supported in a hollow jacket 21 to prevent it kinking. A liquid exit port 34 in a heat sealed end 26 of the drip chamber allows blood to pass through the conduit 36 to a mounting means 38 for a needle to administer blood to a patient. The mounting means 38 is protected by a sterile cover 40, and a roller clamp 44 on the tube 36 regulates the flow.
Patent GB-281801-A (GB)
Title: Improvements in speaking tube attachments for telephones and like instruments
IPC: H04M1/15
Filed: 1926-06-14
Abstract: 281,801. Steuart, D. S. S. June 14, 1926. Mouthpieces and attachments.-A speaking- tube attachment for connection to a telephone, dictaphone, &c., comprises a flexible tube, to which there is imparted bv an internal wire of softened aluminium, phosphor bronze, or unalloyed copper such a degree of adjustable rigidity that the mouthpiece may be moved by the thumb and forefinger only into any convenient plane or position and will remain so adjusted without further support. The device consists of a com posite central flexible tubular portion provided at the ends with ferrules for attachment to the telephone and mouthpiece respectively. The flexible tube, which is uniform in bore or may taper from mouthpiece to telephone, is made of duralumin surrounded by rubber-proof material and coated with braided cotton. The mouthpiece ferrule is made in two parts, the part f<2> connected to the tube being screwed to receive the part f<1> screwed in turn to the mouthpiece m. The part f<2> is also provided with an annular groove g into which is inserted the ends of the twisted wires w', w<2> of softened aluminium to such ends being clamped by the part f<1> of the ferrule. The other end of the tube t is connected to a ferrule, the part s of which screws into the microphone box of the telephone. This ferrule is flanged and slotted to receive the other ends of the wires w<1>, w<2>, which are clamped in place by a screwed washer r. The wires w', w<2> may be formed of a bundle of wires, their intermediate portions being intertwined at long pitch intervals, or they may be partly coiled and partly straight.
Patent GB-1389306-A (GB)
Title: Bearing assemblies and bearing bushes therefor
IPC: F16H57/022
Filed: 1972-05-19
Abstract: 1389306 Bearings CAM GEARS Ltd 19 May 1972 23629/72 Heading F2A A bearing bush 1 having inner and outer bearing surfaces 3, 4 comprises a body having a wall part 5 carrying one bearing surface and a skirt part 6 integral with and extending longitudinally to overlie the wall part laterally spaced therefrom, the skirt part carrying the other bearing surface there being slots 8, 9 in the bush extending laterally away from the bearing surfaces. The slots extend laterally only part way through the bush but extend throughout the longitudinal extent of the wall or skirt. The slots in the inner and outer surfaces are preferably alternate. The bush may be constituted by a plurality of elements whose cross-sections are sectors.
Patent GB-1271175-A (GB)
Title: Improvements in or relating to top feed means for sewing machines
IPC: D05B27/04
Filed: 1970-05-15
Abstract: 1,271,175. Sewing-machines. G. M. PFAFF A.G. 15 May, 1970 [2 July, 1969], No. 23648/70. Heading DIG. Top feed means for a sewing machine wherein a spring biassed top feed foot 35 is connected to a feeding drive eccentric 10 and a raising drive eccentric 11 and to a carrier 5 secured to a bar 3 of a presser foot 6 is characterised in that the top feed foot has pivoted thereto a linkage 12, 19, 20, 21 from the eccentric and is pivotally connected to the carrier 5 by links 23 while a lever 30 connected to the eccentric 11 by links 26, 25, 24 and rockably supported on the carrier 5 acts on a rotatable roller 32 mounted on the feed foot. The feed foot is acted on by a spring 41 through a ball 38 and the movement of the ball during feeding is limited by a surface 39. A channel 13 on setting bar 15 guides a block 14 pivotally mounted on arm 12 to produce the feed motion and the adjustable angle of the channel alters the feed length. A manual lever 50 is provided to raise the presser foot and the top feed foot.
Patent GB-599115-A (GB)
Title: Improvements in and relating to staircases
IPC: E04F11/09
Filed: 1945-09-14
Abstract: 599,115. Staircases. ALLINSON, H. W. Sept. 14, 1945, No. 23695. [Class 20(iv)] A staircase comprises metallic tread supports 1 secured by welding &c. to the side strings 2 with separate treads 6, risers 3 and nosings 4 permanently or detachably secured thereto. As shown the offset portion 1b of the support engages in the slot 4a of the nosing and is connected by screws 5 through the stepped down portion 4b. The tread, which may be reversible, rests on the support with the front rebate 6a or 6b engaged by the shoulder 4c of the nosing. The top edge of the lower riser fits into the slot 4d on the underside of the nosing which permits vertical movement for assembly purposes, while the bottom edge of the upper riser fits between the rear of the tread and the upturned edge 1a of the support, the rebate 3a engaging the rebated rear edge 6b or 6a of the tread. A leaf spring may operate between the riser and the edge 1a of the support.
Patent GB-314265-A (GB)
Title: Improvements in or connected with cloth stretching machines
IPC: D06C3/00
Filed: 1928-08-17
Abstract: 314,265. Gr³be, P. Aug. 17, 1928. Tentering.-The position of one chain guide is automatically adjusted according to the width of the cloth being stretched by means of a shaft 5 which is driven in one or the other direction by clutches 12, 4 and gearing 3, 2 from a driven shaft 1. The clutches are periodically disengaged against the action of a spring 13 by a cam 6 on the shaft 1 and levers 8, 10 and are held out of action by hooked levers 19 one or the other of which is raised to allow one or other clutch to engage by means of a double ended lever 15 engaging one arm 21 of a bell crank, the other end of the same carrying a feeler 20 in contact with the edge of the cloth. Reference has been directed by the Comptroller to Specification 16135/09, [Class 100 (i), Feeding and delivering webs' &c.].
Patent GB-676498-A (GB)
Title: Electrically heated liquid containers
Inventor: BADGER HARRY MORRIS
IPC: A47J27/00
Filed: 1951-09-28
Abstract: 676,498. Electrically heated beverage containers. LANDERS. FRARY & CLARK. Sept. 28, 1951, No. 23764/50. Class 39(iii) An electric liquid heater comprises an inner container 11 and an outer casing 12 between which is an insulating space 13, the undersurface of the container 11 having a groove 20 in which is slidably positioned at least one electric heating unit 41. The groove 20 is semi-circular in cross-section and contains a tray 25 which supports the heating unit 41 and a thermostat 40 connected in series therewith, a spring 27 tending to eject the tray 25 on removal of a threaded nut 30 at the opening into the groove 20. A leaf-spring 47 serves to urge the thermostat 40 into contact with the container 11, and a bimetal strip 50 acts similarly with respect to the unit 41 when the strip 50 is heated and flexed. A copper plate 9 extending transversely of the apparatus assists in distributing heat from the unit 41 to the container 11.
Patent GB-316678-A (GB)
Title: Improvements relating to electron discharge devices
IPC: H01J19/42
Filed: 1929-08-02
Abstract: 316,678. British Thomson-Houston Co., Ltd., (Assignees of Thompson, B. J.). Aug. 2, 1928, [Convention date]. Vacuum. tubes.- Microphonic and other noises in valves &c. due to relative motion of the electrodes, particulaily of a filamentary cathode, are reduced by the provision at that end of the electrode structure remote from the stem of an insulating member having openended slots which frictionally engage the electrodes or their wire supports at opposite sides thereof. A screened grid valve, Fig. 1, described in Specification 292,563, is provided with a slotted semi-circular thin mica disc 12, Fig. 2, having slots for a control grid leak 6 and two wires which support an inner screen grid 8. A flexibly supported filament 2 contacts lightly with the sides of a slot 12a which is extended as shown beyond the filament to prevent lateral strain thereon. The Specification as open to inspection under Sect. 91 (3) (a) states also that the registering member may be placed at the lower end or at other portions of the structure and that when there are no horizontal supports it. may consist of a drilled circular disc. This subject-matter does not appear in the Specification as accepted.
Patent GB-223896-A (GB)
Title: Improvements in electrically heated kettles and like vessels or utensils
IPC: A47J27/00
Filed: 1924-10-08
Abstract: 223,896. Hecla Electrics Proprietary, Ltd., (Assignees of Marriott, C. W.). Oct. 22, 1923, [Convention date]. Bottoms.-An electric kettle or the like is provided with a bottom 2 of a weldable metal, preferably rustless iron.
Patent GB-506240-A (GB)
Title: An improved trip or releasing mechanism for use with prepayment meters
IPC: G07F5/20
Filed: 1938-08-12
Abstract: 506,240. Prepayment mechanism for meters. LANDIS, & GYR AKT.-GES. Aug. 12, 1938, No. 23800. Convention date, Sept. 18, 1937. [Class 27] A trip or releasing device for prepayment meters comprises a releasing 'member in the form of a double lever 17, 18 which receives movement through Maltese gearing 7, 12 from the shaft 1 of the quantity mechanism of the meter and acts through an abutment lever 24 on a detent cam or tappet 27 co-acting with a member 28 for operating a switch or valve. When a coin is inserted and a knob turned, a cam 33 by acting on a pin 30 raises the slide 28 against the action of a spring 34 to allow the switch 31, 32 to close, and the shaft 1 is rotated to actuate an hidicator 2, 3 and also through the Maltese gearing to rotate the toothed part 17 of the releasing member. A lug 22 on the part 18 is held against the part 17 by a spring 23, so that the part 18 is moved into the path of movement of the lever 24. The slide 28 is retained in' its raised position by a tooth 29 engaging the tappet 27 which is connected to the lever 24 by a spring 26 and abutment pin 25. The tappet retains the slide 28 since the lever 24 is retained by member 18. Further coins may be inserted, the extent of prepayment being shown by units and tens pointers 4, 5 on the dials 2, 3. When maximum prepayment is made, the pin 9 on the disc 7 of the Maltese gearing engages a tongue 35 which rests against a pin 36 and locks the mechanism. The shaft 1 is returned by the consumption meter and a basic charge mechanism. When the pointers 4, 5 are at zero, the member 18 releases the lever 24 allowing the switch to be opened. If no coins are now inserted, the shaft 1 is rotated further in the reverse direction by the basic charge mechanism and the member 18 moved further out of the path of the lever 24. The arrears that must be paid before the switch can again be closed are indicated on the left side of the dials 2, 3. When maximum arrears are reached, the pin 9 engages the tongue 35 which now rests against a pin 37 to lock the mechanism.
Patent GB-644267-A (GB)
Title: Improvements relating to underwater observation chambers
IPC: B63C11/44
Filed: 1948-09-10
Abstract: 644,267. Diving-apparatus. GALEAZZI, R., [Firm of]. Sept. 10, 1948, No. 23885. Convention date, Sept. 13, 1947. [Class 68 (ii)] In an underwater observation chamber, the apparatus which would otherwise obstruct the movements of the operator, are carried on a rotatable frame on which a seat is mounted, and the dimensions of the chamber are such that the frame and apparatus carried thereby are just able to rotate and the operator can be accommodated only in a seated position. As shown, the seat 4 is adjustable horizontally and vertically on a frame 3, which is revolved, on a track 5, to bring the operator opposite to a selected window 6. The apparatus which revolves with the frame may include an oxygen bottle or bottles having control valves 7, a lever 8 which actuates a known mechanism 9 for releasing ballast, and an air-circulating fan 10.
Patent GB-1145834-A (GB)
Title: Improvements in or relating to presses
Inventor: SIMPSON GORDON EDWARD TRIBE
IPC: B29C45/66
Filed: 1965-06-04
Abstract: 1,145,834. Injection moulding machines. CHURCHILL INSTRUMENT CO. Ltd. 23 May, 1966 [4 June, 1965], No. 23893/65. Heading B5A. [Also in Division B3] A clamping press for an injection mould 17 is adjustable to accommodate moulds of different sizes. In the example shown the mould 17 is clamped between an intermediate platen 6 and a floating plate 14 carried by a fixed platen 2, by means of a toggle 7 operated by a ram 8. The toggle 7 and ram 8 are pivoted to a platen 4 whose position is adjustable according to the size of mould used by drive means 5 including an electric motor. The adjustment process comprises the following steps: (i) motor 9 moves thrust assembly 3 to the left until a switch 18 is actuated, (ii) switch 18 stops motor 9 and ram 8 extends toggle 7, (iii) motor 9 moves assembly 3 to the right until plate 14 actuates a switch 16 to stop the motor and cause ram 8 to retract toggle 7, (iv) when a limit switch 19 is tripped motor 9 moves platen 4 through a predetermined strain distance. When this position is reached motor 9 is automatically de-energized and fixes the platen 4 at the required distance so that when (v) ram 8 is automatically actuated the toggle 7 is re-extended and the mould clamped under the required locking force. Modifications.-In place of the switch 16 alternative sensing means may be used, e.g. (i) an optical beam device passing between the plates 2, 14, (ii) a device sensitive to current variation in the motor 9 or (iii) if the electrical drive 5 is replaced by an hydraulic motor, a device responsive to pressure variations in the hydraulic motor. In place of the toggle 7, a cam or screw arrangement may be used.
Patent GB-1272544-A (GB)
Title: Electric arc torches
IPC: B23K10/00
Filed: 1970-05-18
Abstract: 1,272,544. Welding by fusion; cutting by fusion. THERMAL DYNAMICS CORP. 18 May, 1970 [29 May, 1969], No. 23951/70. Headings B3R and B3V. [Also in Division H5] An arc torch electrode 6 is cooled and centred by a mounting sleeve 8 of electrically insulating, thermally conducting material, preferably boron nitride, the sleeve 8 acting as a plasma gas distributing manifold and as electrical insulation between the electrode 6 and torch body 5, gas flowing via straight or helical grooves 13 in the sleeve 8 to the nozzle 11. The gas path from the inlet to a cavity 12 is via the grooves 13, a chamber 15, holes 14 inclined to the torch axis to provide a vortex flow into the chamber 10, and the nozzle 11. The torch is operable in the transfered mode for cutting, welding, cladding or general heating, with straight or reverse polarity. Channels or grooves 13 are on the outside or inside of sleeve 8. A set screw 19 holds the slidable electrode 6. Specification 997,541 is referred to. The torch may be gasshielded. Reference has been directed by the Comptroller to Specification 1,178,425.
Patent GB-644430-A (GB)
Title: Improved method of manufacturing calcium carbonate
IPC: D21H17/67
Filed: 1947-08-29
Abstract: Calcium carbonate having a major portion by weight of particles larger than 2 microns is prepared by introducing calcium hydroxide and carbon dioxide into an aqueous suspension of previously-prepared calcium carbonate having a minor proportion by weight of particles larger than 2 microns, and continuing the precipitation until the desired increase at particle size has been effected.  The fine particle size calcium carbonate may be prepared by carbonating slaked lime under predetermined conditions of concentration, temperature and agitation, say 180 grams/litre Ca(OH)2, at 40 DEG  C. and with a 10 per cent CO2 content washed flue gas; by vigorous agitation of a calcium carbonate suspension after precipitation; by wet-milling of calcium carbonate; by dry grinding precipitated carbonate, followed by air separation.  In the first stage 5 per cent of the lime may be left uncarbonated.  The process may be carried out continuously or batch-wise.  For the second stage, a temperature of 30 DEG  C. is specified, and the feed of lime is preferably such as to provide at any moment unreacted material of 1-25 per cent of the weight of calcium carbonate present.  The lime is fed in aqueous suspension, at a concentration equivalent to that of the calcium carbonate suspension.  The product is for use primarily as a filler for cigarette paper.
Patent GB-833456-A (GB)
Title: Improvements relating to internal combustion engines
Inventor: CLARK ALBERT GEORGE
IPC: F02M69/00
Filed: 1956-08-03
Abstract: 833,456. Direct-injection two-stroke engines; engine charges. GENERAL ELECTRIC CO. Aug. 3, 1956, No. 24016/56. Classes 7(2) and 7(3) A charge acting both as a combustible and comburant is injected at 5 into a cylinder having terminal exhaust ports 14, operation proceeding by compression ignition after initial use of an electrically heated glow plug 8, a sprak plug and admission of air mixed with the monofuel or an explosive starting cartridge. The charge, which may be ethylene oxide, or methyl, ethyl, or propyl nitrate, is supplied by an engine-driven pump 11 via valve 13. The invention is applicable to opposed piston and multi-cylinder engines.
Patent GB-412441-A (GB)
Title: Improvements in and connected with photo-lithographic processes
IPC: G03F3/00
Filed: 1933-08-30
Abstract: 412,441. Photolithographic processes. HACKETT, W. H., 32, Leeton Avenue, Coogee, and PRYKE, P. W., Burton Street, Lane Cove, both near Sydney, Australia. Aug. 30, 1933, No. 24042. Convention date, Aug. 30, 1932. Drawings to Specification. [Class 98 (ii).] Plates for successive colour printings to obtain a multi-coloured print of an original coloured picture are prepared from the usual " key " drawing indicating the colour components of the original by making a number of separate enlargements upon the grained surfaces of zinc or like metal plates and then marking each of these surfaces with black chalk or ink to form black and white representations of each of the different colour components of the original. Printing plates are obtained from these enlargements by photographic reduction upon other grained zinc or like metal plates from which the printing plates are then formed. Preferably the first enlargement of the key is obtained by photography, copies being obtained for example by transferring on to a zinc surface a dust impression from a dusted ink impression obtained by a pull on paper of the inked first enlargement.
Patent GB-1105145-A (GB)
Title: Stabilised antacid compositions
Inventor: GRANATEK EDMUND STANLEY
IPC: A61K33/08
Filed: 1965-06-04
Abstract: An aqueous antacid suspension comprises aluminium and magnesium hydroxides and from 0.5 to 2.0% by wt. of a stabilising additive comprising an alkali metal and / or an alkaline earth metal gluconate.  Sodium, potassium, calcium, and magnesium gluconates are exemplified.  The invention also comprises anhydrous antacid compositions comprising from 4 to 8 pts. by wt. Al(OH)3, 1 to 8 pts. by wt. Mg(OH)2 and from 0.5 to 2.0 pts. by wt. of Na, K, Ca, or Mg gluconate.  Magnesium gluconate may be formed in situ in the aqueous suspension of Al(OH)3 and Mg(OH)2 by addition of gluconic acid or glucono-delta-lactone. Conventional excipients may be added to the aqueous antacid suspensions.  The latter may be used in combination with anti-flatulents such as methylpolysiloxane, local anaesthetics such as lidocaine, antibiotics such as tetracycline hydrochloride or penicillin, sedatives such as phenobarbital, tranquilizers such as reserpine or meprobamate, antispasmodics such as aminopentamide or belladonna alkaloids, protective coating agents such as Al(OH)3 gel or magnesium trisilicate, or an alkalisoluble hydrophilic colloid, e.g. carboxymethyl cellulose, alginates, carboxypolymethylene or cellulose acetate phthalate.  The anhydrous composition may be tabletted, encapsulated in gelatin, or resuspended in water.  The composition may be formulated with an analgesic, e.g. aspirin or acetyl p-aminophenol, into an effervescent or conventional tablet.
Patent GB-901314-A (GB)
Title: Improvements in or relating to variable-ratio gear transmissions
Inventor: EVERNDEN HAROLD IVAN FREDERICK
IPC: F16D67/00
Filed: 1958-07-25
Abstract: 901,314. Variable-speed gear. ROLLSROYCE Ltd. May 28, 1959 [July 25, 1958], No. 24108/58. Class 80 (2). A combined hydraulic and epicyclic variablespeed gear provides two reduced ratios, direct drive, over-drive and reverse, all the drive being transmitted through a fluid coupling for the reduced drives and reverse, and the torque being split for direct drive and overdrive. The planet carrier 20 of an input epicyclic train is directly driven by an input shaft 10, its ring gear 17 is fast with the pump 12 of an hydraulic coupling, and its sun gear 23 is selectively stationed by a band brake 27 and clutched to the planet carrier by a clutch 25. The turbine 13 of the coupling is fast with a sun gear 35 of an output epicyclic train having a planet carrier 32 fast with an output shaft 34 and a ring gear 28 selectively stationed by a brake 30 and clutched to the ring gear 17 of the input train by a clutch 31. A reverse train comprises a planet carrier 38 fast with the output shaft, a sun 37 fast with the ring gear 28 and a ring gear 40 stationable by a brake 42. For first gear, brake 30 and clutch 25 are applied, so that the input train is locked and drives the coupling 12, 13 which drives the output shaft at a reduced ratio through the output train. For second gear, brakes 27, 30 are applied, and the input train drives the coupling at a step-up ratio. For direct drive clutches 25, 31 are engaged and the drive is divided and then re-combined in the train 15. For over-drive brake 27 and clutch 31 are applied. For reverse brakes 27, 42 are applied. Neutral is obtainable by releasing all the brakes and disengaging both clutches.