baber/WOPTO huggingface dataset:
Patent GB-1443413-A (GB)
Title: Heat exchanger assemblies
IPC: F23D14/78
Filed: 1972-04-17
Abstract: 1443413 Gas burners; water heaters T I DOMESTIC APPLIANCES Ltd 10 July 1973 [17 April 1972 and 18 Oct 1972] 17691/72 and 47926/72 Headings F4T and F4A A heat exchange assembly comprises a gaseous fuel-mixture burner having an outlet 23 within which is located a diffuser head comprising an assembly of spaced finned pipes 25 which form passages for coolant fluid, the spaces between the fins and pipes constituting the flame parts of the burner, a duct 22a for supplying gaseous fuel mixture to the burner, and exchange means 31 located in close proximity to the diffuser head and defining therewith a combustion chamber 32 for the burner. A mixer 22 for the apparatus may be as shown in Fig. 1 and comprises a gas supply pipe 14 entering the mixing chamber via slots 12 inclined to create a vortex in duct 2 and draw in air through inlet 9. An alternative mixer has gas inlet orifices located between adjacent surfaces of two parts, which surfaces are separated by a resilient member, said parts being adjustable to alter the compression of the resilient member and thus the size of the orifices. The outlet of a first air/ gas mixing chamber may lead into a second mixing chamber where further air is added (Figs. 4 and 5 not shown). The air/gas mixture may be supplied to the diffuser head by a plurality of ducts fed from the same, or resspective, mixers or from a plurality of mixers each feeding a group of ducts. The mixers may be as disclosed in Specification 1,362,781. The heat exchange means 31 comprises a plurality of interconnected parallel finned pipes 30 one of which is connected via connector 29 with header 26 at one end of the diffuser head.
Patent GB-314491-A (GB)
Title: A process for increasing the effect of pressure in the liquefaction of coal
IPC: C10G1/06
Filed: 1929-06-10
Abstract: 314,491. Kastner, J. G. June 28, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Mineral oils.-In the liquefaction of coal by heating it under high pressure, e.g. with compressed hydrogen, the pressure is caused to alternate rapidly, e.g. more than ten times a minute between any two desired magnitudes. The pressure vessel a is connected by pipes d<1>, d<2> to containers b, c connected by a pipe d<3> provided with a pump g. The hydrogen is compressed in the container b until the requisite pressure is attained whereupon a valve e in the pipe d' opens and the hydrogen flows into the hydrogenation vessel a filled with coal. The chamber c is evacuated so that when the pressure in the vessel a reaches a pre-arranged value a valve f in the pipe d<2> opens and the hydrogen flows into the container c. The' pump g is then started and evacuates the hydrogen from the container c into the containers b and the cycle is repeated, a continuous alternation of pressures being thus obtained in the container a.
Patent GB-735812-A (GB)
Title: New method of and apparatus for decantation
IPC: B01D21/00
Filed: 1953-06-26
Abstract: 735,812. Purifying liquids. SOC. FRANCAISE DES PRODUITS GELSOL. June 26, 1953 [June 26, 1952; Dec. 30, 1952], No. 17757/53. Class 46. In the decanting of liquids containing flocculated material in suspension the flocculated material is divided by fine screens of wire of thickness, for example, of the order of 1 mm., which are displaced at a low speed, for example, of the order of a few cms./sec. in such a manner as to avoid setting up any hydrodynamic disturbance. Preferably the plane of a screen makes an acute angle with the direction of displacement. A cylindrical vat having a pointed base and being a few metres in diameter is provided with an axial rotary shaft from which extend radially six vertical grids (Fig. 2, not shown), each grid consisting of a rigid rectangular frame across which is stretched a screen formed from wires having a thickness of 0.6 mm. The preferred speed of rotation is such that the peripheral speed is 20 cms./sec. and the number of grids is preferably such that a grid will pass through each vertical axial section of the volume once every two minutes. The upper and lower arms of a frame may be angularly offset as shown in Fig. 6. In an alternative construction separate rectangular grids 8, 9, Fig. 3, are each attached at the middle of the inner side, to the rotary shaft 1 so as to lie at an acute angle to the direction of displacement. A number of such sets of grids, angularly disposed about the shaft 1 as before, are provided. In Fig. 7 the grid is in the form of a helicoidal surface; a complete unit may consist of a plurality of coaxial helices angularly offset relative to one another. For large-diameter vats six rotary shafts, 12 to 17, supported on a diametral member 18, Fig. 8, may be provided, each carrying grids such as the helicoidal ones shown, speeds of rotation and frequency of intersection of the volume having the same order of magnitude as before. The member 18 may itself rotate or a plurality of stationary ones may be provided. For a vat long compared with its breadth grids of the kind shown in Fig. 3 may be disposed between uprights carried by a transverse beam whose ends are mounted on carriages running along the sides of the vat.
Patent GB-581615-A (GB)
Title: Improvements relating to sealing rings for machinery bearings
IPC: F16J15/32
Filed: 1944-09-18
Abstract: 581,615. Oil seals. SUPER OIL SEALS & GASKETS, Ltd., and MOXON, L. A. Sept. 18, 1944, No. 17800. [Class 122 (v)] An oil seal comprises two interlocking flexible split ring elements a, b. The ring a is grooved to accommodate a spring d, and provided with a projection e and groove f adapted to interlock with similar complementary formations on the ring b. The rings are of rubber, leather &c. and have their splits at diametrically opposed positions.
Patent GB-1422784-A (GB)
Title: Control arrangements for hydraulically actuated pistons
IPC: F15B20/00
Filed: 1972-04-18
Abstract: 1422784 Hydraulic actuators ULTRA ELECTRONICS Ltd 24 April 1973 [18 April 1972] 17811/72 Heading F1D In a hydraulic actuator, Fig. 1, in which a spool valve 11 controlled by an electric motor 16 causes reciprocation of a piston 21, a link 14 is provided between the shool and an extension 13 of the piston-rod 24 which is operable to lock the piston to the spool, thereby arresting it, if the electrical supply fails. The link 14 has a spring- loaded jaw 15, Fig. 2, which is held in a disengaged position by a solenoid 17. If the power fails the solenoid 17 is de-energized and spring 26 pushes the jaw 15 into clamping engagement with the serrated rod 13.
Patent GB-1141928-A (GB)
Title: Improvements in or relating to change speed power transmission mechanisms for vehicles
IPC: F16H63/36
Filed: 1966-04-25
Abstract: 1,141,928. Transfer gearing. INTERNATIONAL HARVESTER CO. 25 April, 1966 [14 June, 1965], No. 17900/66. Heading B7H. [Also in Division F2] Motor vehicle transfer box 14 following a conventional main change speed gear 211 provides neutral, high and low speed four-wheel drive, and high speed two-wheel drive, interlocking of the transfer box shift rails (37, 69), (Figs. 3-8, not shown) preventing selection of two-wheel low, which would overstress the transmission. The transfer box is identical to that of Fig. 2 in Specification 997,473, with an input shaft 16, output shafts 23, 51 to the rear and front axles respectively, and a fixed shaft 42 supporting a stepped idler gear 40 having large and small gear portions 45, 46. A sliding gear 34 on the shaft 23 is connected to shift rail (37) and a sliding gear 66 on the shaft 51 is connected to shift rail (69). The gear 34 has three positions -leftward, in which it engages clutch teeth 32 on an input gear 19 fast with the input shaft 16 for direct (high) drive to shaft 23; neutral; and rightward, in which it meshes gear 46 for reduced drive to shaft 23 via gears 19, 45, 46, 34. The gear 66 has three positions-leftward, in which it engages clutch teeth 75 on a gear 70 meshing the gear 45 for high speed drive to shaft 51 via gears 19, 45, 70; neutral; and rightward, in which it meshes gear 46 for reduced drive to shaft 51 via gears 19, 45, 46, 66. Mechanical interlocking of the shift rails (see Division F2) co-ordinates their movement by the transfer box shift lever 77 and prevents selection of two-wheel low.
Patent GB-659829-A (GB)
Title: Improvements in or relating to pulse-operated thermionic valve apparatus, such as for example, frequency dividers, electrical counters and the like
Inventor: JAMES IVANHOE JOHN PENFOUND
IPC: H03K25/00
Filed: 1946-01-15
Abstract: 659,829. Pulse frequency dividing circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 15, 1946, No. 17931/48. Divided out of 659,799. [Class 40 (vi)] In a circuit for generating a stepped waveform in response to input pulses, a potential increment is made when a valve passes to the conducting condition. The pulses fed to valve V1 cause diodes V2, V3 to conduct in turn to generate a stepped waveform across capacitor C2, an increment coinciding with valve VI passing to its conducting state. Upon a predetermined amplitude being reached the multivibrator pair V4, V5 reverses to generate an output pulse. Input pulses may also be fed over capacitor C6 to determine the duration of the output pulse, a delay line being utilized when longer pulses are required. The resistor R2 causes a short pulse to occur at the beginning of each step to facilitate triggering of the valve pair V4, V5. The grid of valve V5 may be directly coupled to the anode of valve V4. The circuit may be utilized as a third stage of a frequency divider of the type described in the parent Specification. Specifications 471,731 and 659,837 are referred to.
Patent GB-452737-A (GB)
Title: Improvements in or relating to rotary printing machines
IPC: B41F13/28
Filed: 1935-06-21
Abstract: 452,737. Printing-machines. GOSS PRINTING PRESS CO., 1535, South Paulina Street, Chicago, U.S.A.-(Assignees of Crafts, C. S. ; 645, North Lombard Avenue, Oak Park, Illinois, U.S.A.) June 21, 1935, No. 17932. Convention date, Nov. 3, 1934. [Class 100 (ii)] In a rotary printing-press in which the impression and printing cylinders are.mounted in such a manner that their axes are out of vertical alignment, the printing pressure between the cylinders is varied by mounting them in bearing members which are acted on by pressure devices acting perpendicularly to the plane joining the axes of the cylinders, the pressure devices combining to maintain the bearing member securely within its seat. The invention is described in connection with a machine which is of substantially identical construction with that described in Specification 434,864, in which an eccentric bearing member 17 is provided with ears 24 which are acted on by screws 28 which adjust the printing-pressure and hold the bearing in the adjusted position. The bearings of the cylinders may be lubricated as described in Specification 433,269.
Patent GB-1014253-A (GB)
Title: Refractory materials
Inventor: HILTON RAYMOND FREDERICK
IPC: C04B35/573
Filed: 1962-05-10
Abstract: A shaped mixture of graphite, silicon carbide, silicon and/or ferrosilicon, and a binder, is fired in a non-oxidizing nitrogen-containing atmosphere, e.g. N2 or NH5, at 1150-1350  DEG C. for up to 24 hours, this temperature then being increased to 1400-1500  DEG C. in less than 1 hour, and maintained there for 15-30 minutes. The mixture may comprise 20-60% flake graphite, 20-65% silicon carbide, and 5-50% silicon and/or ferrosilicon; and is mixed with 15-35 parts binder, e.g. pitch, tar, and/or tar oils, per 100 parts of the blend.  The mixture may also contain a fluorine-containing material e.g. fluorspar, cryolite, or topaz (up to 1%); borax, boric acid, glace frit, or powdered glass (up to 5%); and finely divided carbon (up to 10%). Shaping may be by pressing, tamping, or spinning.ALSO:A shaped mixture of graphite, silicon carbide, silicon and/or ferrosilicon, and a binder, is fired in a non-oxidizing nitrogen-containing atmosphere, e.g. N2 or NH3, at 1150-1350 DEG  C. for up to 24 hours, the temperature then being increased to 1400-1550 DEG  C. in less than 1 hour, and maintained there for 15-30 mins.  The mixture may comprise 20-60% flake graphite, 20-65% silicon carbide, and 5-50% silicon and/or ferrosilicon; and is mixed with 15-35 parts binder, e.g. pitch, tar and/or tar oils, per 100 parts of the blend.  The mixture may also contain a fluorine-containing material, e.g. fluospar, cayolite or topaz (up to 1%); borax, boric acid, glaze frit or powdered glass (up to 5%); and finely divided carbon (up to 10%). Shaping may be by pressing, tamping or spinning.
Patent GB-1110475-A (GB)
Title: Counterbalanced boom
IPC: E02F3/26
Filed: 1966-04-25
Abstract: 1,110,475. Bucket wheel excavators. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. 25 April, 1966 [17 Dec., 1965], No. 18044/66. Heading E1F. A buffable, counterbalanced boom in which the counter balancing weight is, for all buffing positions of the boom, movable with respect to the boom so that the sum of all moments due to gravity of the boom masses about the buff axis of the boom is zero. Hydraulic, electrical and mechanical linkage systems are described for appropriately moving the counterbalancing weight relative to the boom, which may be incorporated in a bucket wheel excavator.
Patent GB-793498-A (GB)
Title: Improvements in polyvinyl acetate emulsions stabilised with hydroxyethyl cellulose
IPC: C08L1/28
Filed: 1956-06-12
Abstract: 0.3 to 3 per cent of glyoxal, based on the polyvinyl acetate, is added to emulsion polymerized polyvinyl acetate emulsions containing hydroxy ethyl cellulose as principal stabilizer while the emulsion is at a temperature above 40 DEG  C.  Preferably the pH of the emulsion is lowered to not less than 2 by adding acetic acid.  The glyoxal may be added to emulsions prepared at elevated temperatures before cooling, or to emulsions which have been allowed to cool and reheated.  The emulsions give films and coatings of improved water resistance.  In Example 1 vinyl acetate is polymerized in emulsion in the presence of hydroxyethyl cellulose, an aromatic sulphonic acid emulsifier and a redox system comprising potassium persulphate and sodium sulphite, using sodium bicarbonate as reaction modifier.
Patent GB-1165613-A (GB)
Title: A Transformer.
Inventor: CHUCHLA JERZY KAZIMIERZ
IPC: H01F27/02
Filed: 1967-04-19
Abstract: 1,165,613. Transformers. ELECTRICAL REMOTE CONTROL CO. Ltd. 16 April, 1968 [19 April, 1967], No. 18090/67. Heading H1T. A cover 7 of an insulating housing 6 provides access to primary and secondary coils 4, 5 on a laminated core 1 connected to primary and secondary terminals, the two systems being completely insulated, and every direct path between the terminals being cut by insulation. The insulation comprises bobbins 2, 3 and a covering 13 having walls 16, 17 forming compartments 18, 19, 20. 18 and 20 contain terminal blocks having leads extending to the windings via tubes 15. A fuse holder in 19 may be connected to the secondary terminal via an opening 21. Holes 22, 23, 24 provide access to the fuse and terminal blocks. A grommet moulded to a mains cable engages a member 25. The housing 6 and cover 7 are of resilient, acid resistant, water impervious material such as moulded rubber. Screws 9 extending into inserts 10 have their heads lying in recesses 11 filled by adhesive coated bars 12.
Patent GB-530353-A (GB)
Title: Improvements in, and connected with, boxes or covers for electrical apparatus
IPC: H01H23/04
Filed: 1939-06-22
Abstract: 530,353. Switch cases. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HILL, W. E.June 22, 1939, No. 18171. [Class 38 (v)] [Also in Group XXXVI] A switch or switch-fuse box h is provided with a shield or housing c for the cable-end j, the housing being secured by engagement, with the cover a of the box. The housing has projections d the necks d<2> of which fit into notches b formed by knocking out portions of the rim of the cover a. The enlarged ends d' hook within the cover and strengthening ribs d' support the projections. The cover thus holds the housing c in place.
Patent GB-863566-A (GB)
Title: Improvements in or relating to photographic and cinematographic cameras
IPC: G03B7/085
Filed: 1959-05-28
Abstract: 863,566. Photo-electric aperture control. KAMERA-UND KINOWERKE DRESDEN VEB. May 28, 1959 [Oct. 31, 1958], No. 18198/59. Class 40(3) [Also in Group XX] A photo-electrically controlled camera diaphragm comprises two diaphragm blades 6, 7, separately pivoted. The blade 6 is controlled by a pin wheel 10 mounted on the axis 9 of a moving coil measuring system energized by a photo-cell. The blade 7 is controlled by a pin 14 attached to the blade 6 which engages with slot 15 in the blade 7.
Patent GB-759602-A (GB)
Title: Improvements in or relating to metering apparatus
Inventor: TUFFS PETER JOHN WILLIAM
IPC: B05B7/32
Filed: 1953-07-01
Abstract: 759,602. Mixing liquids in flow. IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 28, 1954 [July 1, 1953], No. 18233/53. Class 86. [Also in Group XXIX] A metering apparatus for supplying liquids in a predetermined proportion, comprises a metering pump for each liquid, the pumps being coupled together through drives of predeterminable ratio, and driving means for the pumps, the speed of which is controllable by the pressure in the output line of one of the pumps. In the arrangement shown, paint is delivered by a meter pump 1 and catalyst by a meter pump 2, the pumps being coupled together by chain drive 3 and being driven by an air motor 4 through a reduction drive 5. The air supply to the motor 4 is regulated by a controller 6 in which a valve in the air supply line 7 is operated by means connected to a diaphragm, one side of which is subjected to the pressure of the paint in the output line 8. On the catalyst output line 9 there is provided a valve 10 operated by the pressure of the catalyst on a diaphragm. The valve is connected to an air supply line 11 and when the catalyst pressure is excessively high or low it passes air along line 12 to a warning device. The pumps 1, 2 instead of being coupled by chain drive may be coupled by gearing or by drives the ratio of which may be varied.
Patent GB-146304-A (GB)
Title: Barrel recoil gun
IPC: F41A25/00
Filed: 1920-07-02
Abstract: 146,304. Krupp Akt.-Ges., F. Dec. 27, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Mountings; recoil apparatus.-Relates to guns, for example differential-recoil guns, in which the barrel is retained in the recoiled position, and consists in positioning the trunnions so that the weight of the gun in the recoiled position is counterbalanced by the weight of the cradle and parts moving therewith in elevation.
Patent GB-959425-A (GB)
Title: Improvements in or relating to printed circuits for electronic and other electrical equipment
IPC: H05K3/10
Filed: 1962-05-11
Abstract: 959,425. Printed circuits; resistors. G. POLLOCK. May 11, 1962, No. 18265/62. Headings H1R and H1S. A printed circuit is made by applying an adhesive medium to an insulating base member in the required circuit pattern, electrostatically depositing a film of metal particles on to the adhesive pattern, cleaning the base member of loose metal particles, and depositing a layer of solder or copper on to the pattern. Preferably the last step is dip soldering, but a layer of copper may be deposited after, or instead of, the solder. The adhesive, which may contain an inert filler, may comprise epoxy resins, alone or mixed with P.V.C. silicone adhesives and phenolic resins. The metal particles, which may be sieved, shaken, or vibrated on to the adhesive surface, are preferably copper, and may be plated with Ag, Au, Rh etc.; two applications are preferred. Double-sided and stacked circuits may be made by the method of the invention. Resistors may be made by using Ag or other precious metal particles.
Patent GB-880041-A (GB)
Title: Bag making apparatus and method
IPC: B31B19/16
Filed: 1959-05-28
Abstract: 880,041. Bag making. UNION CARBIDE CORPORATION. May 28, 1959 [May 29, 1958], No. 18272/59. Class 94(2). The production of bags of thin heat sealable film for the tight packaging of meat and other items by shrinking the bag thereon comprises transversely sealing and perforating a flattened tubing adjacent the seal while the tubing is in a relaxed condiion. Tubing 10 in fed from a reel 24 to a belt 27 by a draw roll 26 co-operating with a roll 28 to produce a bulge in the belt 27 at the point contacted by the tubing 10 so that it is tensioned and then relaxed as it reaches the horizontal portion of the belt 27, In this relaxed condition a head 34 seals and perforates the tubing 10 at 14, 18 respectively, the dwell of the head being controlled by a switch 72. The tubing then passes over an equalizing roll 71 and adjustable rolls 40, 41 past a hole punch mechanism 42, the use of which is optional, to draw rolls 44 where a gripper of a stacker mechanism 48 engages the end bag 21 detaching it at the perforations 18 and depositing it on a conveyer 56. Immediately after the bag 21 is detached and in timed relation thereto cut off knives 46 operate to remove the tail 22 to form the top of the next bag. The operations are started by a reset switch 62 and the positioning of the design 16 of the tubing 10 on the belt 27 relative to the head 34 when the feed of the belt 27 is stopped for sealing is controlled by a photoelectric cell 31 and the feeding of the draw rolls 44 is controlled by electrodes 50, 52 sensing the perforations 18.
Patent GB-887261-A (GB)
Title: Support means for sewing machines
IPC: D05B75/06
Filed: 1960-05-24
Abstract: 887,261. Cabinets &c. SINGER MANUFACTURING CO. May 24, 1960 [May 26, 1959], No. 18304/60. Class 52(1) A sewing machine 62 which is supported in a table or cabinet 17 so as to be movable to an elevated position for inspection or lubrication or to a lowered position for storage beneath the table top is releasably mounted on a cradle 16 having a bar with a flange 42 and C-shaped yokes 46, 47 to receive a depending rear skirt 64 of the sewing machine bed 63, the machine being clamped to the cradle by an eccentric clamping head 53 mounted on a narrow flange 43 and rotatable by means of a handle 59 with a free end 61 which engages the rear wall 19 of the cabinet and supports the cradle in the loading position. The cradle 16 is pivoted to the table top 18 by hinges having pins 24 and when handle 59 is turned to lock the clamp the machine may be raised or lowered in normal fashion. Specifications 642,875 and 809,805 are referred to.
Patent GB-209685-A (GB)
Title: Improvements in rockers, preferably for use in the valve mechanism of internal combustion engines
IPC: F01L1/18
Filed: 1923-07-16
Abstract: 209,685. Bentley Motors, Ltd., Burgess, F. T., and Hewitt, H. S. July 16, 1923. Cams.-A cam bowl D is inserted axially in a recess formed in a rocker or lever A, for example of an internal - combustion engine, and is held in position by a strip or plate E secured to the rocker. In some cases, the rocker may be of light metal, such as duralumin, in which case the retaining plates for the cam bowl extend along each side of the rocker for stiffening purposes. The bowl D may be of hardened steel tube having its wall thicker at the middle than at the ends.
Patent GB-168214-A (GB)
Title: Improvements in interlocking means for connecting boxes, cases and the like
IPC: B64D45/00
Filed: 1920-07-03
Abstract: 168,214. Barber, W. E., and Hoyle, E. July 3, 1920. Fittings, external, for detachably connecting together the boxes of aircraft instruments &c. One box 5, Fig. 3, is fitted with two pairs of brackets 7, 8, the former pair 7 having keyhole-shaped openings and the latter plain hook openings. The second box 6 carries a fixed rod 17 mounted in brackets 18 and adapted to be engaged by the hooked brackets 8, and a spring-controlled rod 9 slidably mounted in brackets 15, 16, Fig. 4. The rod 9 has reduced portions 13, 14 over which the brackets 7 can be engaged when the rod is retracted by pulling the handle 20; on releasing the handle the wider portions of the rod enter the keyhole slots and the boxes are locked together. Any mechanical equivalents may be substituted for the plain hook brackets 8 and for the fixed rod 17.