baber/WOPTO huggingface dataset:
Patent GB-448326-A (GB)
Title: Improvements in and relating to combined steam generators and turbines
IPC: F22B27/12
Filed: 1936-01-16
Abstract: 448,326. Forced - flow steam boilers. BORSIG MASCHINENBAU AKT.-GES., A., Tegel, Berlin. Jan. 16, 1936, Nos. 1484, 1485, and 1486. Convention dates, Jan. 19, 1935, April 15, 1935, and April 18, 1935. [Class 123 (ii)] [See also Group XXVI] Steam for supply to a turbine is generated in heated stationary tubes 17, Fig. 1, communicating with a chamber containing a wheel 12 secured to an extension 6 of the turbine shaft and formed on one side with vanes 10 which force feed water into the generator tubes and on the other side with vanes 25 which separate water from the steam delivered by the tubes. The steam after expansion passes through superheating tubes 40. Two wheels 12<1>, 12<11>, Fig. 2, with vanes are so mounted on the turbine shaft (i as to form an intermediate chamber 9 into which bled steam is led through the shaft to heat the feedwater. The heating steam flows into the feed supply compartment 10 through ports 11 in the wheel 12<1>. Steam passes from the separating compartment 25 into superheating tubes 23 and then to a supply tube 7 in the shaft 6. In a modification, the feedwater is raised in pressure in two stages. In another modification, the feedwater pump chamber is arranged between two wheels and separating chambers are arranged at the sides of the wheels.
Patent GB-736877-A (GB)
Title: Improvements relating to holders for thermionic valves
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R33/76
Filed: 1953-01-19
Abstract: 736,877. Holders for thermionic valves. EDISON SWAN ELECTRIC CO., Ltd. Jan. 11, 1954 [Jan. 19, 1953], No. 1533/53. Class 38 (1). A holder assembly for a valve 4 comprises an insulating shield 2, a detachable insulating cap 3 and an anode terminal 12 carried by a spring 13 secured to a lead-retaining metal strip 14, tongues 17 of which slide in grooves 18 in the cap 3. Ribs 7 form the lower part of shield 2 and the spaces between them serve as ventilating openings. Lugs 9 on the shield engage under lugs 6 on the rim 5 on the valve socket 1, and in order to remove the shield it is rotated, thus disengaging the lugs.
Patent GB-724397-A (GB)
Title: Improvements in or relating to cutting machines for mines
IPC: E21C27/26
Filed: 1953-01-21
Abstract: 724,397. Endless-chain coal-mining machines. HAARMANN,A. Jan. 21, 1953 [Jan. 23, 1952], No. 1711/53. Addition to 707,062. Class 68(1). In a mining machine of the type disclosed in the parent Specification, a cutter chain 7 or chains 7, 11 and 12, disposed at a level above the top of a face conveyer 15, extend beyond the old face and a lower cutter chain 8 or chains 8, 14 extend from the new face 2 which is exposed during the cutting operation only as far as the old face. The leading flights of the shorter lower cutter chains 8, 14 precede the leading flights of the longer upper cutter chains 7, 11, 12, and a guide plate 17 is positioned below the cutter chains 7, 11, 12, so that the latter can propel the mineral that they detach along the guide plate on to the conveyer 15.
Patent GB-142167-A (GB)
Title: Improvements in or relating to automobile torpedoes
IPC: F42B19/44
Filed: 1919-01-23
Abstract: 142,167. Whitehead Torpedo Works, Ltd., Lees, E., and Ridsdale, H. W. Jan. 23, 1919. Torpedoes, locomotive. - Means for causing a torpedo to float after it has fulfilled a predetermined condition comprise devices additional to the depthregulating device and operating independently of the impact of the torpedo, whereby compressed air, for example the compressed air used in the apparatus described in Specification 129,070, is permitted to fill and distend an extensible portion of the head of the torpedo or a fabric vessel attached thereto. As shown in Fig. 1, the head of the torpedo is made in two parts 1, 2 connected together by flexible fabric 3. The part 1 is normally locked by a catch 14 to a frame 12 secured to the part 2. Within this part is a compressed-air flask 8 connected by a pipe 33 to a chamber 29 filled with oil and shut off by a valve 7 from a discharge pipe 22. The stem of the valve 7 rests on an arm of a three-armed lever 19 which, as well as the catch 14, is controlled by a rod 16 screwed into a spring-pressed sleeve 17. The rod 16 carries vanes 18 and, before the torpedo is launched, is screwed outwards, so that although the sleeve 17 is then in its innermost position, the rod 16 cannot act on the members 14, 19. Levers 26 carrying vanes 28 are formed with teeth gearing with a rack on the sleeve 17. As the torpedo passes through the water, the levers 26 are pressed back, as shown, holding the sleeve 17 out against the action of the spring 23. During the run also, the vanes 18 cause the rod 16 to be screwed inwardly. When the torpedo stops, the inward pressure on the levers ceases, and the spring 23 moves the sleeve inwards, taking with it the rod 16. A collar 15 thereon then raises the catch 14, and the end of the rod operates the lever 19 so as to lift the valve 7. Air then passes from the flask 8 into the chamber 29, and, after driving out the oil, is discharged through the pipe 22. Liquid ballast, if any, in the head is thus displaced, escaping through a valve 34, and the head is extended, concertinalike, by expansion of the fabric 3. As the part 1 of the head, together with the rod 16, moves outwards, a spring-controlled plunger 38 automatically brings a stop 37 above a part 36 of the lever 19, so as to prevent the valve 7 from closing.
Patent GB-562991-A (GB)
Title: Cap marking mechanism for container capping machines
IPC: B67B3/00
Filed: 1943-02-02
Abstract: 562,991. Marking bottle &c. caps. LEHMANN, O. P. R., and BOSTOCK, R. N. Feb. 2, 1943, No. 1725. [Class 125 (ii)] [Also in Group XXII] Caps 82, Fig. 4, are fed from a hopper down a shoot 12 to a cappingposition beneath an annular series of capping heads 10, Fig. 2, and are momentarily retained by fingers 37 while they are stamped by a marking element 78 in order to indicate the machine and the operative by whom the capping was done. The marking is effected on a sealing pad within the cap. A projection on a cam 76, Fig. 2, co-operates with a roller 69 to rock lever 67 and rotate lever 60 and arm 57, Fig. 3, to impart motion to rack bar 26 and marking element 78 mounted thereon, spring 62 cushioning the movement, and spring 77 imparting capmarking motion to element 78, rack bars 27 Fig. 7, being reciprocated by spur-wheels 25, 24. Before the projection on cam 76 meets roller 69, a cap is supported on each of two pairs of pins 37 and element 78 is in cap-marking position. The action of the projection on the cam retracts element 78 and moves rack bars 27 upwardly, pawls 39, Fig. 6, swinging dogs 32 to separate the lower pair of pins 37 and permit the lowest cap to fall. Continued upward movement of rack bars 27 causes pawls 39 to release dogs 32 when spring 38 returns dogs 32 thereafter upper dogs 33 are actuated by projections 47 to move the upper pair of pins 37 apart to cause a cap to drop to the lower pair of pins 37. Roller 69 is then released and spring 77 effects the marking movement of element 78 and moves rack bars 27 downwardly permitting dogs 33 to return to normal position. If caps accidentally accumulate below the marking mechanism, an upward extension 56 on rack bar 31 contacts the topmost of the accumulation of caps and holds element 78 back from its marking position, so that no cap will be marked more than once.
Patent GB-831681-A (GB)
Title: Improvements in or relating to fluid pressure operated servo-motors
IPC: B62D5/087
Filed: 1955-01-20
Abstract: 831,681. Vehicle power steering. BISHOP, R., JOHNSTON, R. H., and WHITLOCK, G. B. R. Jan. 20, 1956 [Jan. 20, 1955], No. 1822/55. Class 79(5) [Also in Group XXIX] In a fluid-pressure operated servomotor for power assisted steering gears comprising a piston movable in opposite directions in a double acting cylinder under the control of a reciprocable spool valve displaceable from a central position to connect one end of the cylinder to a pressure fluid supply port and the other end to an exhaust port, the spool valve is formed with a pair of pressure chambers 25, 26 one at each end of the spool 1, each chamber is connected to a different one of the ports 17, 18 connected to the ends of the cylinder so that on displacement of the spool from its central position, pressure fluid is supplied to one only of the chambers 25, 26 to act on the spool to return it to its central position, and outwardly facing shoulders 21, 22 are formed at opposite ends of the spool, these shoulders coinciding with the inner ends 23, 24 of counterbored end portions of the valve housing 8 when the spool is in its central position. As snown, the spool 1 has cylindrical lands 2, 3, 4 slidable in a bore 7 in a housing 8. The lands 2, 3, 4 are separated by reduced portions 5, 6. The housing 8 has a central annular inlet port 11 flanked by annular exhaust ports 9, 10. In the central position, the controlling edges are such that some pressure liquid can flow from the inlet port 11 to either exhaust ports 9, 10. Between the ports 9, 10, 11 are the ports 17, 18 leading to opposite ends of the servo-cylinder. The ports 18, 17 also communicate by respective passages 33, 34 with the pressure chamber 25, 26 so that when the spool is displaced from the central position pressure fluid acts in the chamber 25 or 26 towards which it is displaced and so acts through a loose washer 27 or 28 on a shoulder 21 or 22 of the spool to tend to restore it to its central position. The spool is also mechanically centralized by resilient rings 29, 30. The ends of the spool are provided with sealing rings 35, 36. In order to dispense with the latter, the rings 29, 30 are each replaced by a ring of generally rectangular cross-section having a circumferential recess on its outer periphery bounded by sealing lips.
Patent GB-696838-A (GB)
Title: Improvements in and relating to motor speed control systems employing magnetic amplifiers
IPC: H02P7/30
Filed: 1951-01-24
Abstract: 696,838. Automatic speed control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 24, 1951 [Feb. 3, 1950], No. 1837/51. Class 38 (iv). In a series motor speed control system, the motor 1 is energized from a two-stage magnetic amplifier with overall regenerative feed-back, comprising a push-pull magnetic amplifier 12 feeding a power output bridge-connected magnetic amplifier stage 47. A series resistor 56 in the output circuit provides regenerative feedback through delay network 63 ... 65 to an auxiliary control winding 62 on the push-pull amplifier The speed control winding 11 is fed by the difference between the voltage of a tachometer generator 6 and a reference potential divider 8, 9 fed from a constant current system such as that described in Specification 670,838 and including saturable reactor 15. The motor 1 has a main series field 2 in series with the armature 4, fed from the amplifier output, and an opposing series field 3 fed from a rectifier 61 at a substantially constant voltage whereby the armature current is relatively higher at low speeds to provide more stable operation.
Patent GB-778867-A (GB)
Title: Improvements in and relating to display devices
IPC: G09F7/06
Filed: 1955-01-21
Abstract: 778,867. Indicator boards. HORTON, W. G. Dec. 23, 1955 [Jan. 21, 1955], No. 1915/55. Class 118 (1). [Also in Group XVIII] An indicator board comprises a base-plate 30, Fig. 8, of magnetic material and a series of panels 31, 32, 33 which are secured thereto by magnetic means for relative longitudinal movement with regard to one another and are slotted to receive symbols such as described for example in Specification 465,800. The panels may be vertically mounted on the base-plate (see Fig. 9, not shown), and may be provided with a hooked end 36, Fig. 10, for slidable engagement with a rail. Each panel may constitute a permanent magnet or may be made of aluminium and have at least one magnet riveted thereto. The panels may be interconnected by releasable fastenings such as U-shaped clips (see Fig. 7, not shown), and may be plain or provided with one or two sets of flanges. Again the panels may be provided with cruciform slots as described in Specification 754,148 and the base-plate may be flanged and provided with cut-away corners (see Fig. 1, not shown). Specification 730,158, [Group XVIII], also is referred to.
Patent GB-216173-A (GB)
Title: An improved method of aerating or agitating liquids
IPC: A01K63/04
Filed: 1923-01-22
Abstract: 216,173. Parr, G. W., and Croucher, R. Jan. 22, 1923. Fish tanks and aquaria.-Water in aquaria &c. is aerated by discharging air into it by means of a, jet of water discharged from a nozzle b through a mixing cone d and an expansion cone c opening. into the bottom of the tank p, or communicating with it through perforated pipes s, air being drawn into both the cone d and the cone c through a perforated pipe e extending above the 'level of the water in the tank h. The orifice of the nozzle b may be regulated by a needle-valve.
Patent GB-546363-A (GB)
Title: Improvements in or relating to oscillator systems
IPC: H03B27/00
Filed: 1941-02-12
Abstract: 546,363. Valve generating circuits. FARNSWORTH TELEVISION & RADIO CORPORA. TION. Feb. 13, 1941, No. 1980. Convention date, Sept. 26, 1940. [Class 40 (v)] A polyphase generator comprises a number of resonant circuits each associated through signal repeating means with another circuit, the coupling for transferring the energy including phasedisplacing means to ensure the transfer in appropriate phase. Fig. 1 shows an arrangement for producing voltages which may be 90 degrees displaced in phase. The required couplings are taken through leads 31, 33 from resistances 22, 26 in the inductive and capacitive branches respectively of the respective output circuits. Fig. 3 shows a modification for producing voltages 120 degrees displaced in phase, phase shifting means 73 being connected to the output circuit of each stage and to the input circuit of another stage. The arrangement according to the invention is particularly applicable to drive the frequency multiplier described in Specification 545,881 thus permitting the elimination of the phase shifting means described therein.
Patent GB-555415-A (GB)
Title: Improvements in or relating to compound sheet material
IPC: B27D1/04
Filed: 1942-02-16
Abstract: 555,415. Spiked plates. LANGWORTHY, C. F. Feb. 16, 1942, No. 2042. [Class 89 (ii)] [Also in Group VIII] A compound sheet material light in weight, fireproof and particularly suitable for use in constructing aircraft, vehicle bodies, partitions &c.-consists of a core a of wood pressed between outer metallic sheets b perforated as in Fig. 3 to provide inwardly extending projections d which key into the core and hold the layers together. Steel or aluminium alloy may be used for the metal plates. The fact that the wood projects through the apertures makes the material of use as a non-skidding surface, e.g. for aeroplane runways or for the decking of small high-speed marine craft. The material may be fireproofed and may be curved, shaped or corrugated by curving the dies used in pressing the constituent sheets together. Shaping may also take place after formation of the composite sheet.
Patent GB-447383-A (GB)
Title: Improvements in or relating to rotary printing presses
IPC: B41F9/18
Filed: 1936-01-22
Abstract: 447,383. Printing-machines. VOMAGBETRIEBS - AKT. - GES., Plauen, Germany. Jan. 22, 1936, No. 2083. Convention date, Jan. 22, 1935. [Class 100 (ii)] To permit the copper printing-plates mounted on the forme cylinders of intaglio printing- machines to be interchanged or repaired, the cylinder 1 is mounted so that it can be moved out of printing position by the aid of a slot or groove 3 and rails of known type, and the cylinder is received at one end of its axle in a frame which can be swung around a vertical axis to permit of action upon the cylinder. The end 5 of the axle is received in a shackle 7, which normally rests in a horizontal position, but is raised and held in the position shown in Fig. 1 in order to receive the axle. By means of a screw 19 the axle is clamped in position, and the cylinder is further supported by means of a bracket 14 connected by a strut 15 to an arm 13 supported by a vertical pillar 11 which is rotatably mounted in step bearings 12 in a base plate 10 secured by screws 9 to the frame 2 of the printing-press. A screw clamp comprising a fixed jaw and a movable jaw 18 prevents lateral movement of the cylinder prior to its being moved about the pillar 11, and a toothed quadrant 23 on the bracket 14 engages the gear-wheel 24 of the cylinder while it is being rolled into position on the swinging carrier, and prevents rotation of the same when in position. The bracket 14 can be locked in definite position by a spring bolt 22 engaging in holes 21 on the pillar 11.
Patent GB-664820-A (GB)
Title: Improvements in or relating to seals for preventing the passage of fluid between relatively rotatable parts
Inventor: BARSKE ULRICH MAX WILLI
IPC: F16J15/54
Filed: 1948-01-23
Abstract: 664,820. Stuffing-box substitutes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 9, 1949 [Jan. 23, 1948], No. 2084/48. Class 122(v) In a combined contact and centrifugal pressure fluid seal in which fluid under the influence of centrifugal force builds up in an annular chamber to form a seal and bears upon one of two co-acting contact seal elements or upon a member carrying said element, to tend to separate the elements, one of the elements is carried by or integral with a part of the wall of the annular chamber which is flexible and does not rotate. An impeller carrying blades 3 and having a hub 7 forming one contact seal element, rotates in an inwardly open channel formed by a recess 4 and a,double diaphragm wall, A rubber apertured diaphragm 5, the inner periphery.of which forms the other contact seal element, backed by a spring disc 6 comprises the double diaphragm wall. Under static or low speed conditions. shown in the upper part of the Figure, the spring 6 presses the diaphragm 5 into sealing contact with the hub 7 Upon rotation of the impeller, as shown in the lower part of the Figure, fluid in the recess 4 is flung outwardly to form a fluid seal and also to act on the diaphragm 5 to force it out of contact with the hub 7. In a modification, the diaphragm wall is in one piece and carries at its inner periphery a contact element which has an annular lip provided to trap sealing liquid flowing radially inwardly. A bellows forms the outer wall of the chamber in another embodiment and carries a plate having a contact element, to be spring pressed into sealing contact with an impeller. The chamber in a further embodiment is internally of "U" section and comprises two annular' channel portions both open radially inwardly and with one extending within the other. The outer portion which is rotary, carries one contact element and the inner, one wall of which is a diaphragm carrying the other contact element, is non-rotary. Passages may be provided to supply liquid to the impellers.
Patent GB-667088-A (GB)
Title: Improvements in or relating to devices for exercising babies
IPC: A47D13/04
Filed: 1950-01-26
Abstract: 667,088. Seats. ROBINS, H. Jan. 26, 1950. No. 2110/50. Class 52 (ii). [Also in Group XV] A child's seat comprises a tubular framework consisting of an upper frame and a lower frame spaced apart by tubes, the upper frame 3 being rectangular and the lower frame 4 comprising six or more sides, a seat being supported from the upper frame. The tubes 1 of the frames are detachably connected together by rods 2 which, at the lower part of the front, are of substantial length whereby the front of the framework is wider than that of the rear to ensure stability. A fabric seat 11 is suspended by resilient straps 13 from the upper frame 3, apertures 12 being provided in the seat to enable the child's feet to reach the ground in order to propel the device. The seat 11 may be detachable and provided with handles 14 whereby the child may be carried. The device is provided with castors or wheels 9.
Patent GB-309245-A (GB)
Title: Improvements in the treatment of rubber latex
IPC: C08C1/14
Filed: 1928-01-23
Abstract: 309,245. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Jan. 23, 1928. Latex, coagulating.-Latex is coagulated by the addition of an acid in the presence of an organic substance possessing soap-like properties which is not decomposed by acids into products insoluble in water, and which reduces the surface tension of the latex. Such substances comprise aromatic or hydroaromatic sulphonic acids which contain alkyl, cycloalkyl, aralkyl or aryl groups in the nucleus, or in other substituents such as amino or hyroxyl groups, true sulphonic acids of aliphatic tar or mineral oils, fatty acids, naphthenic acids and the like, fat splitters, suiphonic acids which have tanning properties, such as those obtained by treating sulphonic acids of naphthalene with formaldehyde, Turkey red oils, or salts of these acids. Coagulation is rapid and complete, and is independent of the concentration of the acid. If an acid or substance producing a hydrogen ion concentration pH>-2 and preferably #-1 is used with these substances, a bulky irreversible jelly is formed with a small amount of limpid serum. Vulcanizing agents, accelerators, fillers, &c. may be added at any stage. Several examples are given, of which the following are typical : (1) 1 litre of 12 per cent latex is treated with 60 ccm. of a 5 per cent solution of Turkey red oil, after elimination of ammonia, and 140 ccm. of 12 per cent acetic acid; rubber coagulates at once quantitatively. (2) 1 litre of latex is introduced into 7 per cent. hydrochloric acid with stirring, to obtain a pH value of 0.6-0.8; 15 ccm. of a 5 per cent solution of the sodium salt of isopropyl naphthalenesulphonic acid are added and a jelly forms.
Patent GB-1531651-A (GB)
Title: Radioassay kit for and method of determining methotrexate
IPC: G01N33/50
Filed: 1977-01-19
Abstract: 1531651 Determination of methotrexate S E CHARM and H E BLAIR 19 Jan 1977 [20 Jan 1976] 02183/77 - Heading G1B Methotrexate in a body fluid sample containing at least 0À03 ng per ml of free methotrexate is quantitatively determined by a method comprising adding a known amount of dihydrofolate reductase and a known amount of I-125 labelled methotrexate to the sample, removing unbound methotrexate for example by adsorption on charcoal which has been treated with dextran gelatine, or haemoglobin and measuring the gamma ray count of the labelled bound methotrexate.