baber/WOPTO huggingface dataset:
Patent GB-123290-A (GB)
Title: Improvements in or relating to Kitchen Ranges.
Inventor: PATE GEORGE
IPC: F24C13/00
Filed: 1918-10-14
Abstract: 123,290. Pate, G., Smith, A. H., and Hague, G. Oct. 14, 1918. Addition to 122,466. Cooking-ranges.-A combination range of the kind described in the parent Specification has a pair of ovens 9 above the fire, with a narrow flue space between them. Above the ovens is a hot plate 10. The fire is enclosed by curved sliding doors 2, which, when opened, pass into recesses on either side, as shown in the sectional plan view, Fig. 3. A damper 12 is arranged at the upper end of the flue 8 behind the boiler 7, and is moved by a rod 13. A damper 11 is fitted in the flue space between the ovens.
Patent GB-1037554-A (GB)
Title: Process for the recovery of sulphur dioxide contained in industrial gases
IPC: C01C1/245
Filed: 1963-04-29
Abstract: In absorbing sulphur dioxide from industrial waste gases, the sulphur dioxide is absorbed in a solid absorbent comprising a synthetic resin containing a pyridine ring, and the compound so produced oxidized and the resultant product treated with ammonia to form ammonium sulphate, which is washed from the absorbent with water and crystallized, the absorbent thus regenerated being utilized in the next cycle. The absorbent must be stable under the conditions of the process and is preferably a polymeric cross-linked resin obtained by co-polymerization of a vinylpyridine monomer, e.g. 2-methyl-5-vinylpyridine with divinyl benzene. The absorbent may be wet or dry during use and the absorption preferably occurs at a temperature between 25 DEG  and 60 DEG  C.  The oxidation of the absorbed sulphur dioxide may be achieved by blowing free oxygen-containing gases into the absorption bed. The product of the oxidation may also be extracted from the absorbent by washing with an aqueous ammonia solution and crystallizing the resulting ammonium sulphate solution.
Patent GB-774377-A (GB)
Title: Improvements in or relating to metal tubes and a method of forming the ends thereof
Inventor: STEWART GAVIN BURTON
IPC: B21D53/86
Filed: 1953-06-19
Abstract: 774,377. Forming the ends of metal tubes. TUBEWRIGHTS, Ltd. June 17, 1954 [June 19, 1953], No. 16944/53. Class 83 (2). The end 3 of a metal tube 1 having a seating therein for a bolt or the like, is formed by closing the end of the tube by an end wall 2, providing a pair of opposed holes in the tube wall, inserting a bush 6 in the holes and sealing the joints between the ends of the bush and the holes. The open end of a tube is first heated to white heat and is then closed by a spinning operation to provide a thickened end wall 2. An oxy-acetylene flame may be concentrated on the point of closure before the final spinning operation. The tube end is then flattened by pressing and the holes are drilled for the bush 6. The latter is sealed to the tube by welds 7. Alternatively, the tube end may be closed by forging. The tube may subsequently be galvanized and is preferably used in making fabricated structures. In another embodiment two parallel spaced bushes are provided in the flattened portion of the tube end.
Patent GB-951634-A (GB)
Title: Improvements in or relating to fluid valves
IPC: F16K31/524
Filed: 1959-05-20
Abstract: 951,634. Valves. J. ELAND, and R. G. S. ELECTRO-PNEUMATICS Ltd. July 6, 1960 [May 20, 1959], No. 17061/59. Heading F2V. The combination of a pressure responsive main valve with a trip operated auxiliary valve for relieving pressure on the main valve, is characterized in that the main valve comprises a body 10 having a cylindrical bore 11 which slidably receives the smaller diameter portion 18a of a differential piston main valve member 18 controlling flow between an inlet 12, an outlet 13, and an exhaust 14 in the body, the piston being formed with an axial bore 18c having at one end a restriction 18d, the body being formed at one end with a casing 15 having cylindrical bore of larger diameter than the bore in the body 10 and forming a chamber 16 adapted slidably to receive the larger diameter portion 18b of the piston, this chamber being in communication with atmosphere by way of an axially located port 21 formed at right angles with a small bleed hole 22, the casing 15 being provided externally with a bifurcated bracket 17 in which is pivotally mounted a spring biased lever arm 25 furnished with an adjustable auxiliary valve 23 adapted normally to close the bleed hole 22, the lever being furnished at its free end with a spring influenced trip lever 30, pivotally mounted in the lever 25 and provided at its outer end with a freely mounted bowl or roller 32, the other end of the trip lever 30 being shaped to provide a stop 30a to prevent movement of this trip lever relatively to the lever arm in one direction. Inlet pressure is communicated to the axial bore 18c through a hole 18e. The device may be operated by an abutment movable in the direction of arrow A to provide a pressure impulse to an air operated relay.
Patent GB-1419725-A (GB)
Title: Copying machines
IPC: G03G15/30
Filed: 1974-04-18
Abstract: 1419725 Electro-photography RANK XEROX Ltd 18 April 1974 17063/74 Heading G2H  An electro-photographic copier, in which paper copy sheets are presented in turn to a transfer station by a conveyer, has its exposure apparatus and the feeding of sheets to the conveyer kept out of operation until the conveyer has reached its full speed. When the conveyer is at its full speed, the copier makes a pre-set number of copies.
Patent GB-319044-A (GB)
Title: Improvements in or relating to cotton blankets
IPC: A47G9/02
Filed: 1928-06-14
Abstract: 319,044. Baker, S. H., and Rees, Ltd., P. L. June 14, 1928. Packing blankets.-Cotton or wool and cotton blankets a made in a plain or twill weave from cotton or waste and raised by brushing on one or both sides have the raw edges of the material made into a comparatively wide hem c as shown in Fig. 4 at the top, or top and bottom, so that they simulate cotton &c. sheets. The blankets are folded transversely and longitudinally into flat-sided rolls superimposed with the top hems at the exterior and bound with tape d. Slits or openings e may be formed in the hems or loops of tape &c. sewn therein to receive the binding tape.
Patent GB-437636-A (GB)
Title: Improvements in and relating to electric heating plates
IPC: F24C15/10
Filed: 1935-06-14
Abstract: 437,636. Electric hot-plates. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 14, 1935, No. 17206. Convention date, June 14, 1934. [Class 39 (iii)] An electric hot-plate comprises two or more concentric units 1 and 2 separated by an air gap 16 except at one or more points where they are united by bridges 3 integral with the units The surface of the plate is machined after the compound unit is formec Some of the bridges may be subsequently severed by an inclined slot to allow for relative expansion. The resistance wire is embedded in cement in grooves on the bottom of the units and a reflecting plate is provided below. A terminal block 12 is secured under the bridge 3. The hot plate is supported on a surrounding ring and air gaps 17 may be left between this ring and the plate.
Patent GB-460292-A (GB)
Title: Improvements in or relating to umbrellas
IPC: A45B3/14
Filed: 1936-05-06
Abstract: 460,292. Umbrellas. THORNE, R. S. May 6, 1936, No. 17261/35. [Class 134] The stick of an umbrella is tubular to house a shooting stick and the bolt which is provided on the shooting stick to hold the ground disc, when not in use, is adapted to engage a slot in the upper end of the tube..The slot may be L-shaped and the bolt may be secured in the slot by a strap.
Patent GB-475333-A (GB)
Title: Improvements in or relating to devices for feeding tobacco
IPC: A24C1/02
Filed: 1937-06-21
Abstract: 475,333. Tobacco-feeding apparatus. AKTIEBOLAGET FORMATOR. June 21, 1937, No. 17282. Convention date, June 23, 1936. Addition to 454,634. [Class 130] The rotary means described in the parent Specification for tumbling-over tobacco contained in a reservoir, is provided with impellers which are retracted parallel to the axis of rotation as the impellers approach means for removing tobacco from the upper layer in the reservoir. As shown in Fig. 2, the rotary means is formed by two spaced flanged discs 2 mounted on shafts 1 which are intermittently rotated by pawls 12 carried by cam-actuated levers 11, and the impellers 26 are mounted in grooves 27 in the flanges and reciprocated by pins 28 engaging grooves 29 in stationary. walls 25, 30. The impellers are separated adjacent the path of movement of a gripper which removes tobacco from the reservoir. In modified constructions (a) the impellers 26 are attached to or formed integrally with flexible arms 31 and are separated by engaging sectorshaped guide plates 33, and (b) only a single disc carrying impellers is provided in the reservoir. Specification 230,788, [Class 130], is referred to.
Patent GB-453240-A (GB)
Title: Improvements relating to paper-making machines
IPC: D21F7/02
Filed: 1935-06-15
Abstract: 453,240. Indicating elongation of webs in paper-making machines. RUSSELL, D., Rothes House, Markinch, Fife. June 15, 1935, No. 17284. [Class 96] A pointer 18 of a dial 17 responsive to the difference of speed of rolls 1 and 2 indicates the elongation of the web, e.g. between the couch roll and the first wet press of a papermaking machine. Each roll 1, 2 may be driven from a master-drive and rotates a pulley on a shaft 10, one pulley being fast and the other a nut-pulley 13, so that a relative speed-change moves the shaft 10 axially, to rotate the pointer 18 through a rack 20 and gear 22, and also causes a belt-fork 15 to shift a belt 11 on the pulley 13. Alternatively, indicators may be directly coupled to the speed control mechanism of each of a series of rolls.
Patent GB-814545-A (GB)
Title: Refining of impure tetracycline antibiotics
Filed: 1956-06-05
Abstract: Chlortetracycline, bromtetracycline and tetracycline are isolated from fermentation liquors containing the same by adjusting the pH of the fermentation liquor to below pH 4 and preferably below 1.5, removing insoluble materials, adjusting the pH of the solution to within 4 to 12, the liquor containing at least one mol. equivalent of magnesium, calcium, strontium, zinc or barium ions for each mol. of tetracycline antibiotic contained therein, separating and recovering the tetracycline antibiotic precipitate which is formed, extracting the precipitate with a polar solvent containing at least one mol. of magnesium chloride, calcium chloride, strontium chloride, zinc chloride or barium chloride for each mol. of tetracycline antibiotic contained in the precipitated material, reducing the volume of the solution, adjusting the pH to less than 3 with hydrochloric acid and recovering the hydrochloride of the tetracycline.  The preferred polar solvents are aliphatic alcohols containing 1 to 6 carbon atoms, e.g. methanol, ethanol, n-propanol and n-butanol; others are acetone, tetrahydrofuran and 2-ethoxyethanol; pH adjustment to 4 to 12 is with an alkali such as ammonia, potassium hydroxide, sodium hydroxide, calcium hydroxide, barium hydroxide, sodium carbonate, triethylamine or other amines.
Patent GB-963021-A (GB)
Title: Mechanical device for switching predetermined and preset frequencies
IPC: H03J5/10
Filed: 1961-05-12
Abstract: 963,021. Adjusting radio tuning controls. COMPAGNIE FRANCHISE THOMSON - HOUSTON. May 12, 1961 [May 12, 1960], No. 17406/61. Heading H3Q. In an arrangement for permitting the tuning of radio apparatus to any one of a plurality of predetermined frequencies comprising a control shaft 4 which may be rotated to any one of a plurality of predetermined positions so as to adjust the frequency determining means in the apparatus through a pinion 6 on the shaft 4 engaging with a train of further pinions 8. The shaft 4 is provided with a key-like extension 5 which can enter any one of a plurality of radial slots arranged around the bearing in the portion 1 of the chassis in which the shaft is journalled and is spring-loaded by a spring 7 so that when it is desired to select an alternative angular position for the shaft, thereby to effect an alteration of frequency, the knob 3 is pulled out against the action of the spring 7 and rotated to the desired extent, whereupon, on release of the knob, the key 5 is able to enter the slot corresponding to the angular position selected. In the arrangement shown, each of the pinions 8 is journalled between fixed portions 1, 2 of the chassis so as to be able to move axially to alter the capacitance of a spring-loaded tuning capacitor 11. In the described arrangement, six tuning positions are provided; each pinion 8 is provided with five holes spaced 60 degrees apart around its periphery while in corresponding positions around the axis of the pinion are provided six adjustable screws 12, 13 screwthreaded into the chassis portion 1 so that five of these can pass through the corresponding holes in the periphery of the pinion while the sixth 13 bears against the pinion against the action of the spring-loaded capacitor to control the setting of the capacitor and thus the tuning of the apparatus. When a change of tuning is desired, withdrawal of knob 3 causes a portion 17 of a pivoted plate 14<1> to bear against the upper end of the pinion thereby depressing it sufficiently to disengage the screws 12, 13 and permit rotation of the pinions. Selection at a further tuning position of an appropriate quartz crystal may be effected by rotation of a pinion 18 which engages the pinion 6 and operates through worm and wheel 19, 20 to rotate a drum 21 carrying crystals Q1-Q6 to bring the selected crystal to the operative position. -In a second embodiment, Fig. 2 (not shown), the pinions 8 are keyed to their corresponding shafts so as to be able to move axially along them and the shafts are provided with fixed projections which bear against one of the screws 12, 13 in each position of the control shaft 4.
Patent GB-292506-A (GB)
Title: Improvements in mercury vapour rectifiers
IPC: H01J13/20
Filed: 1928-06-15
Abstract: 292,506. Akt.-Ges. Brown, Boveri, et Cie. June 20, 1927, [Convention date]. Addition to 290,297. Low-pressure metallic-vapour apparatus.-In a mercury-vapour rectifier according to the parent Specification in which the temperature inside the anode sleeve is raised, the sleeve is polished on the outer surface and roughened on the inner surface. The sleeve is mounted so that the open end facing the arc is heat insulated from the rectifier casing.
Patent GB-593224-A (GB)
Title: Improvements in concrete mixers, and other mixers of a like kind
IPC: B28C5/18
Filed: 1945-07-09
Abstract: 593,224. Mixing-machines. WOLSELEY SHEEP SHEARING MACHINE CO., Ltd., and MACNAMARA, H. J. July 9, 1945, No. 17407. [Class 86] A mixer for concrete or other material comprises a container 10, Fig. 2, surrounded by a toothed ring 12 having an outwardly extending annular web engaging grooved pulleys 17 supported in brackets 16 on an outer ring 15. The latter is affixed to brackets 20, 21 rotatably mounted on trunnions on a supporting frame, and the mixing drum may be tilted about the trunnions by the use of a handle 34. A shaft 27, Fig. 5, mounting a driving pulley 28, passes through one trunnion 24 and carries a pinion 29 engaging the teeth 14 of the ring 12, whereby the drum may be rotated. The tilting of the drum in either direction may be limited by the engagement of either of two lugs 35 with either of two removable stop pins carried by the adjacent supporting trunnion.
Patent GB-590183-A (GB)
Title: Improvements in or relating to dielectric materials
IPC: H01G4/258
Filed: 1944-09-13
Abstract: 590,183. Condensers. MORTON, G. Sept. 13, 1944, No. 17440. Drawings to Specification. [Class 37] [Also in Group XXIII] A di-electric material having a desired Specific Inductive Capacity (S.I.C.)/temperature characteristic curve comprises a mixture. of previously fired and powdered ceramic dielectric materials selected as having a peak value of S.I.C. at a different temperature, in proportions depending on their known S.I.C. / temperature curves, loaded into a binder such as a low melting point glass. Suitable loading di-electrics are formed by firing various mixtures of barium and strontium titanates at suitably controlled temperatures to obtain the desired characteristics. Condensers may comprise plates of two types of the di-electric material wherein one has a negative and the other a positive temperature coefficient, and the whole may be enclosed in glass. Specification 574,577 is referred to.
Patent GB-379785-A (GB)
Title: Improved process of and apparatus for the treatment of leather
IPC: C14C15/00
Filed: 1931-06-16
Abstract: 379,785. Tempering leather. POCHIN, H. S., Evington Valley Road, Leicester. June 16, 1931, Nos. 17490 and 27569. [Class 17 (i).] Leather, e.g. shoe soles and stiffeners, is " tempered " by treatment with water under reduced pressure. The leather may be immersed or the water may be sprayed on to the leather. Soles may be placed between the turns of a helical coil # in a chamber a which is then exhausted to about 25 inches of mercury, as indicated by the gauge c. Atomizers d then spray water on to both sides of the soles. In a few minutes, an air cock g is opened and the water drained away by a pipe h. In a modification, the soles are placed in a rack #<2> above the water level. The chamber is then exhausted by a pump band the rack, which is counterbalanced by a weight m lowered into the liquid. While the soles are immersed, the vacuum may be broken and additional air pumped into the chamber. The vacuum may then be reestablished and the soles raised above the water level, air being then gradually admitted. Soles to be cemented on are, preferably, coated with cement before treatment.
Patent GB-768703-A (GB)
Title: Improvements in or relating to protective systems for polyphase a.c. loads
Inventor: ANDERSON ALEXANDER
IPC: H02H3/17
Filed: 1954-06-15
Abstract: 768,703 Protective cut-out arrangements. ANDERSON, BOYES & CO., Ltd. June 15, 1955 [June 15, 1954], No. 17517/54. Class 38(5) An earth-fault protective system for a polyphase A.C. load has means to delay the closing of a main contactor 6 to permit the application to the load circuit during the delay period of a test voltage of short duration and of a value in the region of that of the operating voltage and means to disconnect the source of the test voltage before the contactor closes, the closing of the contactor being prevented should an earth fault exist. In Fig. 1, when a control switch 1 is closed, a relay 2 closes contacts 2A to apply the test potential from a transformer 12 through an additional primary winding 10 of a core-balance transformer 7 and the contacts of an auxiliary switch 8 associated with the contactor 6 to the load circuit 9. In addition, the relay 2 closes contacts 2B to energize the coil of a relay 4 having a time delay device 4A and contacts in series with the closing coil 5 of the contactor 6. If an earth fault exists, test current flowing through the winding 10 to earth induces. a current in the secondary winding 11 to open an earth-leakage relay 3 and cause the opening of the relay 2 and so prevent the closing of the contactor. If no earth fault exists, the relay 3 is not energized and in due course, the relay 4 closes and the coil 5 is energized to open the switch 8 to disconnect the test source and to close the contactor 6. In a modification, Fig. 2 (not shown) the contacts 2A, 2B are operated by a push-button which is adapted to reset an earth leakage relay of the mechanically latched type. In this case the delay device is associated with the push-button to delay the closing of the contacts 2B.
Patent GB-173471-A (GB)
Title: Improvements in or relating to wrist watch cases
IPC: A45C11/10
Filed: 1921-06-28
Abstract: 173,471. Chopard, A. Dec. 31, 1920, [Convention date]. Cases, watch.-In wrist watches, in order to prevent access of perspiration to the watch, the latter is suspended in an outer case in such a manner that it is enveloped by air. An outer case a of gold or other non-oxidizable metal is provided with a bent pin d, Fig. 3, having perforated collars e, in the perforations of which the hinge pin of the watch case takes. The back c of the outer case a is hinged so that the watch may be accessible for winding &c.
Patent GB-873522-A (GB)
Title: Improvements in or relating to devices for automatically compensating for friction lining wear
IPC: F16D65/56
Filed: 1958-06-02
Abstract: 873,522. Automatic adjusting devices for brakes. REGIE NATIONALE DES USINES RENAULT. June 2, 1958 [June 4, 1957], No. 17570/58. Class 103 (1). A device for automatically compensating for wear of a friction lining of a mechanism such as a disc brake comprises a first member, which, when displaced, causes the friction lining to be applied against the part capable of moving with respect to the lining and a second member cooperating with the first member through a screw-and-nut arrangement, the pitch thread form of which is such that upon the screw being displaced rotatively with respect to the nut in one axial direction the position of the nut relative to the screw is varied to compensate for wear of the lining, movement of the screw in the other direction effecting no relative movement between the nut and the screw. In an automatic adjusting device for a disc brake illustrated, the screw-and-nut device is situated between the hydraulically actuated pistons 7, 8 such that when fluid under pressure is introduced into chamber 10, pistons 7 and 8 are forced apart and a shouldered rod 15, secured to the piston 8, carries along a screw-threaded socket 14 formed with a buttress-type thread which rotates in nut 17 integral with piston 7 in this direction of movement such that the pistons may be adjusted to take up the lining wear. A clearance 16 is left between threaded socket 14 and the bottom of the piston 8 at the end of the brake applying movement. When the brakes are released, however, the hydraulic pressure in chamber 10 is reduced and return spring 11 moves piston 7, 8 towards each other and in this direction the axial movement of the threaded socket 14 of the piston cannot rotate in the nut 17 integral with piston 7. The piston 7 and the threaded socket thus constitute an integral unit which is returned to its inoperative position and as the socket 14 engages the bottom of the piston 8, the axial clearance 16 is taken up. The play resulting from lining wear is adjusted automatically during the subsequent brake application due to spring on the threaded socket in the nut 17. In addition to the hydraulic actuation of the disc brake, a hand brake control device 18, 19 may be provided.
Patent GB-1132744-A (GB)
Title: Improvements relating to temperature-responsive actuating devices
IPC: G05D23/02
Filed: 1966-04-22
Abstract: 1,132,744. Temperature responsive actuating elements. A. L. BAYLISS and K. L. BAYLISS. July 20, 1967 [April 22, 1966], No.17620/66. Heading G1D. A temperature responsive actuating device comprises a tube 10 containing thermally expansible material 12 which acts as a piston-rod 14 to move it against the action of a spring 17. Two bifurcated arms 18, 19 are attached to abutments 15, 16, the arc 15 being fixed and the other 16 being mounted on the piston-rod 14. The arms 18, 19 are rigid with two arms 31, 30 respectively of a pantograph linkage the arms 31, 30 pivoting on nuts 22, 23 on a screw threaded rod 24. The other arms 32, 33 of the pantograph linkage are pivotally connected to a bracket 36 which is attached to the device whose position is to be controlled e. g. a window or ventilator. The positions of the nuts 22, 23 on the rod 24 may be adjusted to control the action of the linkage.