baber/WOPTO huggingface dataset:
Patent GB-1478674-A (GB)
Title: Feathering controllable pitch propeller
IPC: B63H3/08
Filed: 1974-07-03
Abstract: 1478674 Feathering a marine propeller LIPS BV 23 May 1975 [3 July 1974] 29494/74 Heading B7V  A controllable pitch marine propeller has a control system with a feedback loop which is automatically rendered inoperative in response to a demand signal for blade feathering so that an actuator moves the blades into the feathering position without feedback in response to the signal. In Fig. 2, the blades are adjusted by a movable cylinder 3 connected to each blade root by a connecting rod 4. Fluid is supplied to chambers C 1  and C 2  by a pump 27 via a servo-valve 31 and conduits 12 and 11. Conduit 11 constitutes a movable rod actuating a feedback line 14 connected to valve 31, which rod is normally retained in abutment with cylinder 3 by means of a collar 19 and a spring 20. When a demand for feathering is instigated, pump 27 is stopped and a smaller auxiliary pump 28 is started. Valve liner 35 is moved through pressure on face 31 via line 30 so that fluid enters chamber C 1  via lines 29 and 9. When a piston 21 abuts hub cover 22, the cylinder 3 moves off collar 19 to render the feed-back link inoperative, and the cylinder proceeds to a feathered position.
Patent GB-823324-A (GB)
Title: Silica-alumina hydrocarbon reforming catalyst
IPC: B01J31/16
Filed: 1957-09-19
Abstract: An hydrocarbon-reforming catalyst comprises a mixture of a silica-alumina cracking component and a sorbent carrier on which has been deposited a metal hydrogenation component, wherein the metal forms 0.1 to 20% by weight of the total catalyst and is platinum, palladium or nickel, the sorbent carrier forming 5 to 75% by weight of the total catalyst.  The sorbent carrier may be alumina, silica gel, borium sulphate, magnesium oxide, titanium dioxide, or further silica-alumina.  The silica alumina preferably contains 7 to 30% by weight of alumina.  Examples are given.
Patent GB-723985-A (GB)
Title: Symmetrical lattice-type four-terminal networks
IPC: H03H7/01
Filed: 1951-12-18
Abstract: 723,985. Impedance networks. COMPAGNIE INDUSTRIELLE DES TELEPHONES. Dec. 18, 1951 [Dec. 28, 1950], No. 29586/51. Drawings to Specification. Class 40 (8). A lattice four-terminal unit network having more than one pass-band, these bands not containing either zero frequency or infinite frequency, is equivalent to a standard quadripole consisting of two pairs of opposite and equal branches, and is composed of one pair of opposite equal branches and one pair of opposite and unequal branches. Specification 646,564 has already demonstrated that such quadripoles can be constructed with fewer resonant elements than the equivalent standard network would require. The present Specification deals with the application of this principle to filters having more than one band which were not treated in the prior Specification. A full mathematical discussion is given for the types of network dealt with in the present application.
Patent GB-856540-A (GB)
Title: Improvements in and relating to door latch mechanism
IPC: E05B65/34
Filed: 1958-09-16
Abstract: 856,540. Latches. ROETHEL, J. H. Sept. 16, 1958 [Sept. 23, 1957], No. 29588/58. Class 44. A door latch mechanism comprises a latch device 10 adapted to be mounted on an upright edge 45 of a door mounted on a motor vehicle for angular movement about a normally vertical axis, and a keeper device 11 adapted to be mounted on an upright edge of a body pillar 34 of the vehicle, the latch device 10 including ar angularly movable bol 12 having teeth 12a adapted to co-operate with teeth 40, 41 on the keeper device 11 to hold the door in a latched position; a por tion 36 of the keeper device 11 on which the teeth 40, 41 are formed is spaced from the body pillar 34 when the keeper device 11 is mounted thereon, and the latch device 10 includes a strap 19 having a part 20 which, when the latch and keeper devices are mounted on the vehicle and the door is in the latch position, lies between the portion 36 of the keeper device 11 and the body pillar 34, the mechanism further including a wedge 25 slidably mounted on the strap 19, and the arrangement being such that, when the door is latched, disengagement of the latch device 10 and keeper device 11 due to relative movement longitudinally of the vehicle is prevented by abutment between the portion 36 of the keeper device 11 and the part 20 of the strap 19, and vibratory movement of the door in a vertical direction is prevented by abutment between the portion 36 and the wedge 25. The bolt 12 is rotatably mounted on a plate 13 by means of a shaft 14 which is operatively connected to other elements (not shown) of the latch mechanism. The strap 19 is secured to the plate 13 and is in the form of a channel-shaped member, the part 20 being the web thereof. The keeper device 11 is U- shaped, the portion 36 forming one leg thereof and the wedge 25 is spring-loaded and engages the upper edge of the portion 36 which is inclined. The wedge 25 may be made of pressed metal containing a suitable lubricant but is preferably made from nylon. Specification 800,437 is referred to.
Patent GB-177557-A (GB)
Title: Improvements in or relating to electro-mechanical power transmission devices
IPC: H02K51/00
Filed: 1921-08-20
Abstract: 177,557. Potter, H. Aug. 20, 1921. Dynamos and motors combined for transmitting power; electromechanical power transmitting systems. - An electromechanical variable-speed power transmission system consists of a field winding mounted upon one element of an epicyclic gear and connected to the driving - shaft, a planet - carrier loosely mounted upon the driven shaft and carrying an armature winding, a fixed field winding, a switch for connecting the armature winding in series with one or other of the field windings in accordance with the direction of rotation required, and a resistance switch for controlling the current in the circuit of the windings to vary the velocity ratio between the driving and driven shaft. Air is circulated through the machine by means of a fan. An additional machine, the armature of which is mounted on the driven shaft, may be supplied with current from the power transmitter or may act as a generator to supply a battery or lamps. An internally toothed annular wheel 3, Fig. 1, is secured to the driving- shaft 1 and carries a field winding 11, Figs. 1 and 3. An arm 8 looselv mounted upon the driven shaft 7 carries the stub shafts of planetwheels 5, an armature winding 9, and a commutator 10. The planet-wheels 5 engage a sun-wheel 6 fast on the driven shaft 7. A casing 14 carries a fixed f.eld 13 and is provided with air inlets 22 and air outlets 21 adjacent to which a fan 19 rotates. The direction of rotation and the speed of the shaft 7 are controlled by a switch 15, 16, 18, and a resistance 17, Fig. 3. In the arrangement shown in Fig, 4 the slip current of the transmitter A is supplied to a machine DE on the driven shaft C and acting as a motor. When the slip current is zero the machine DE is disconnected and may operate as a generator to supply a battery or lamps.
Patent GB-159591-A (GB)
Title: Improvements in or relating to electric water heating apparatus
IPC: F28F9/00
Filed: 1919-11-28
Abstract: 159,591. Verdini, A. Nov. 28, 1919. Heating by electricity.-A portable flow heater consists of a carbon electrode D spaced centrally in a tubular metallic electrode A by means of discs B, C of insulating-material. The electrode D may have a reduced portion at one end passing through the disc C. Several heaters may be connected in series. Reference has been directed by the Comptroller to Specifications 6065/10, 22150/14, and 9584/15.
Patent GB-164044-A (GB)
Title: Improved stencil printing apparatus
IPC: B41L13/02
Filed: 1919-12-01
Abstract: 164,044. Evans, G. J. Dec. 1, 1919. Addressing-machines; stencilling.-In apparatus for printing cards, tags, sheets, &c. in which the cards &c. are arranged in a pile and removed successively from the top as they are printed through a stencil, the stencil is mounted on a carrier which is movable vertically to adjust itself to the height of the pile and is also pivoted and adapted to swing automatically on its pivot after each printing operation to permit removal of the printed card &c. As shown, the pile 11 is. mounted on a table 9 with two adjacent sides in ccntact with pins 26, 28 carried by plates 23, 25 resting by gravity on the top of the pile. The pins 26, 28 pass freely through the table and, when a new pile of cards is to be inserted, are adapted to be lifted simultaneously by a plate 30 vertically guided by rods 31 and raised by means of an arm 34 provided with a handle 35. Instead of the arm 34 a cord attached to the top of the plate 30 and connected to an operating rod may be employed. The cards are printed through a stencil comprising the sheet 14 bearing the stencil perforations secured to a paper frame 12. The stencil is secured in a groove 41 in a carrier 38 which is mounted on pins 36 so as to have free pivotal and vertical movement, the pins 36 passing loosely through holes in the stencil and the carrier. An adjustable weight 43 on an arm 42 secured to the carrier lifts the stencil clear of the pile after each printing operation. A stopplate 22 is provided to limit the travel of the inking roller. The printed cards may be laid upside down on the table 9 against side flanges 20, 21 and have addresses printed on the back by stencils 50.
Patent GB-1417598-A (GB)
Title: Apparatus for conveying broken rock material
IPC: E21F15/06
Filed: 1973-06-25
Abstract: 1417598 Conveyers in mines COAL INDUSTRY (PATENTS) Ltd 24 April 1974 [25 June 1973] 30026/73 Addition to 1383920 Heading B8A [Also in Division E1] Rock-conveying, e.g. goaf stowing, apparatus comprises a fixed frame component 1, a slide component 3 movable with respect to the frame component 1 and slidably supporting at least the discharge end of a conveyer component 5 including a conveyer member, and ramming means 15 for compacting rock discharged from the conveyer component, spill plates 20 being provided to direct rock to the conveyer component. The slick component is supported by studs 4 and has slideways 7 engaging rails 8 on the conveyer component 5 which carries sprockets 11 around which is trained a scraper chain 9. In operation, the conveyer component is loaded with the chain 9 being intermittently advanced, the slide component is extended, and the conveyer component is then extended to discharge the rock.
Patent GB-234725-A (GB)
Title: Improvements in and relating to cushion connections for vehicles
IPC: B60G11/42
Filed: 1924-12-13
Abstract: 234,725. Groves, W. W., (International Motor Co.). Dec. 13, 1924. Non-metallic joints and connections.-In a non-metallic connection and support interposed between two metallic parts of a motor vehicle and comprising a yielding block of india-rubber &c. confined in devices associated with one of the metallic parts and independently connected to the other part, such as the connection described in Specification 188,529, provision is made for setting up substantially diagonal lines of increased density in the body of the block. As shown applied to a spring connection, the block d is formed with upper and lower inclined faces so that when confined under compression between parallel seats a<1>, b<1> in the housing a, b on the frame, increased density is set up along the lines e, f. The leaves of the spring c are formed with upturned ends c<1> more securely to engage the block which is formed with a substantial pad at d<2> to cushion longitudinal shocks. The sides of the block are slotted to enable the spring to be inserted sideways, and the opening d<1> for the spring may be deeper than the slots so that pads are formed to engage the edges of the leaves. Alternatively, the upper and lower sides of the block may be parallel and the seatings inclined, or the upper and lower sides of the opening d<1> or or the spring c may be inclined.
Patent GB-1016738-A (GB)
Title: Fluid seal
Inventor: WALINSKI EDWARD LOUIS
IPC: F16J15/32
Filed: 1963-07-30
Abstract: 1,016,738. Shaft seals. VICTOR MANUFACTURING & GASKET CO. July 30, 1963, No. 30187/63. Heading F2B. In a shaft seal comprising an elastomer ring 6 secured in a casing and having a lip 7 urged radially inwards by a garter spring 8, the lip and the spring are shielded from the sealed fluid by a sleeve 12 which is fixed to the casing and has a portion 14 disposed between the lip 7 and the shaft 15. The ring 6 is bonded to an inner shell 4, 5 telescoped in an outer shell 1, 3 that is a fluid-tight fit in the shaft housing 2 and the sleeve 12 is clamped between an L-ring 11 and a washer 16; the assembly being clamped together by a flange 17 on the outer shell. The ring 6 may be of Buna N or Neoprene and the sleeve 12 may be of p.t.f.e., Nylon or Adiprene. In a modification, Fig. 2 (not shown), the ring 6 has a further lip that engages the shaft on the side of the seal remote from the sealed fluid to prevent ingress of grit &c. In a further modification, Fig. 3 (not shown), for a double seal the ring 6 has two lips, each urged inwardly by a garter spring and protected by a sleeve secured to adjacent ends of the casing. In a still further modification, Fig. 5 (not shown), the sleeves 38, 39 engage a cylinder 35 which is enclosed in the seal casing to form a unitary seal and is secured on the shaft 36 by an elastomer wall 37.
Patent GB-391500-A (GB)
Title: An appliance for playing a new or improved game
IPC: A63F5/04
Filed: 1931-10-31
Abstract: 391,500. Games of chance. V 0 S S , A. E., 7, Wentworth Mansions, Keats Grove, Hampstead, London. Oct. 31, 1931, No. 30218. [Class 132 (ii).] An appliance for playing a game comprises a casing 12 having indexes (for example the words " win " and " odds "), a pair of members 1, 2 having vanes or spokes 19 of magnetic material and mounted to rotate in the casing, frictional driving means for the members (for example a rubber block 9 carried on a push slide 10 and adapted to engage simultaneously the hubs of the rotatable members), and magnets 17, 18 co-operating with the vanes to bring the rotatable members to rest in definite angular positions. The vanes on the rotatable member 1 bear the numbers 1 to 8 to designate the players and are displayed through an opening 15 in the case. The vanes of the rotatable member 2 bear the numbers 1 to 7 and the word " Tote " displayed through an orifice 16. In playing a game, one player spins the rotatable members 1, 2 by pushing the slide 10 in one direction or the other, and on the rotatable members coming to rest under the control of the magnets, gives to the player possessing the winning number displayed at the orifice 15 an amount corresponding to the odds displayed by the rotatable member 2 at the orifice 16, If the word " Tote " is displayed, charge of the device is handed to another player. In a modified construction, the rotatable members are in the form of coaxial drums rotated by arcuate rubber blocks mounted on angularly movable arms.
Patent GB-602956-A (GB)
Title: Improvements in and relating to electrical induction apparatus
IPC: H01F27/26
Filed: 1945-11-13
Abstract: 602,956. Transformers ; inductances. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 13, 1945. No. 30282. Convention date, Nov. 15, 1944. [Class 38 (ii)] An induction device such as an air-cored transformer has a core 6 consisting of laminations clamped together by pairs of bars or channel members 7, 8 and 9, 10 at top and bottom ends respectively, and an enclosing casing consisting of a cover member 1, Fig. 1 (not shown) and side and end members 2-4 removably attached to a rigid frame or structure built up of vertical angle posts or channels 12-15 to which the core-clamping bars are attached, the end members 3, 4 being substantially of U-shaped channel cross-section to provide terminal chambers at opposite ends of the casing, and all members having openings to provide an air circulation path. Base members 18, 19 of substantially U-shaped form are welded or otherwise secured to the lower core-clamping members 9, 10, and are secured at their ends to the vertical angle posts 12-15, the outer edges being arranged to engage between forks 23 extending downwardly from pairs of brackets 22 on the adjacent side panels 2. Louvres 25 mounted above the side panels are secured to the vertical posts by means of bolts, and the end members 3, 4 are similarly secured.
Patent GB-482758-A (GB)
Title: Improvements in or relating to heating, cooling and illuminating apartments
IPC: F24F5/00
Filed: 1936-11-07
Abstract: 482,758. Air-conditioning apparatus ; electric radiators. BERRY, H. H. Nov. 7, 1936, No. 30409. [Class 137] [.Also in Group XI] Air heating and cooling apparatus 1, which may also control humidity, is combined with electric lighting means which shows a red or " warm " light 8 when heating is used and a blue or " cold " light 7 when cooling takes place. The apparatus may be used in conjunction with an electric fire of the kind described in Specification 447,437 which has a heating element 3 and a light screen 4 illuminated from the back by blue and red lamps 5, 6. When air is being warmed, thermostats 10 and 11 bring the red lamps 6, 8 and the fire elements into use, and when cold air is supplied, a thermostat 9 switches on the blue lamps, the red lamps being switched off. During a change over, lights of a " neutral " tint may be lighted, or the red and blue lights left on together.
Patent GB-1438771-A (GB)
Title: Internal combustion engine intake and exhaust assemblies
IPC: F02B19/10
Filed: 1973-06-27
Abstract: 1438771 IC engine intake and exhaust conduits; heating charge HONDA GIKEN KOGYO K K 27 June 1973 [28 June 1972]  30553/73 Heading F1B An intake conduit 17 and an exhaust conduit 18 have a common wall 25 for heat transfer and a housing 21 around the conduits with an inlet 22 and an outlet 26 defines an air gap 5 for the flow of cooling air over the conduits to the air cleaner intake 13 1 . An air-fuel mixture and a leaner mixture respectively are fed to the auxiliary and main combustion chambers 5 and 2. The conduits 17 and 18 may be of sheet metal and the housing 21 a casting.
Patent GB-469791-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: A01B15/12
Filed: 1936-11-09
Abstract: 469,791. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Nov. 9,1936, No. 30562. Convention date, Nov. 11, 1935. [Classes 40 (iii) and 40 (v)] Uniform amplification throughout a wide frequency range is obtained by providing an amplifier for television and like purposes with an output circuit in which the coupling resistance R is connected in series with an inductance L as in a known arrangement, Fig. 2 (not shown), and in addition a condenser C is shunted upon the resistance R, Fig. 3, or part of it, or upon the inductance L, Fig. 4 (not shown), or part of it, the impedance elements being dimensioned in accordance with a formula. In a modification, Fig. 5 (not shown), the condenser C may be replaced by a condenser and inductance in series ; in this way the effect of the internal capacity Ca of the valve is more accurately compensated. The circuit is so designed that phase-distortion is not introduced. The amplifier may be connected to a further valve through the coupling condenser Cg and grid leak Rg.
Patent GB-1064467-A (GB)
Title: Multilayer gas-diffusion electrode
IPC: H01M4/86
Filed: 1964-08-04
Abstract: 5 cc. of 1M nickel nitrate soln. and 5 cc. of 1M copper II p  nitrate solution were diluted with 80 cc. of water and added to 20 cc. of 2M sodium carbonate solution to produce a nickel-copper catalyst which was subsequently filtered washed dried and reduced in a stream of hydrogen at a temperature below 300 DEG C.  A nickel-beryllium oxide catalyst was precipated by sodium carbonate from a solution containing 15 parts by weight of Ni(NO3)2 6H2O and 1 part by weight of Be(NO3)24H2O.  A platinum nickel catalyst was prepared from 0.08 gm. of hydrochloroplatinic acid diluted with methanol in the ratio 1:5 to 1:10, combined with a saturated methanolic solution of 5.6 gm. of nickel acetate and precipitated with a saturated methanolic sodium borohydride solution at 0 DEG C.
Patent GB-226810-A (GB)
Title: Improvements in and relating to apparatus for indicating the level of a liquid at a distance
IPC: G01F23/16
Filed: 1924-12-20
Abstract: 226,810. Farman, H., (Assignee of Soc. H. et M. Farman). Dec. 29, 1923, [Convention date]. Indicators actuated by pressure of head of liquid.-The level of the liquid in a chamber a is indicated by measuring the air pressure necessary to force a column of liquid out of a pipe b closed at its upper end and immersed in the liquid. Air is forced by a pump h into the lower end of the pipe through a fine bore tube g. A tube d opening into the top of the pipe is connected to a pressure gauge e through an air chamber f.
Patent GB-755624-A (GB)
Title: Improvements in and relating to flexible-walled fluid containers
Inventor: MUIRHEAD GEORGE JOHN
IPC: B67D1/04
Filed: 1953-11-06
Abstract: 755,624. Syringes. ENGLISH ELECTRIC CO., Ltd. Nov. 5, 1954 [Nov. 6, 1953], No. 30855/53. Class 102(2). [Also in Group XXIX] A flexible -walled fluid container or bag suitable for insertion in a rigid outer container to which gaseous pressure may be applied to collapse the bag to expel fluid therefrom includes a collector frame which forms a skeleton about which the bag may collapse or expand. The collector frame comprises a perforated central tube 1 closed at its upper end, open at its lower end for admission and expulsion of fluid, and mounted on a plate 2 which is secured to the base 4 of the outer container. Welded to the tube 1 are four equally spaced, C-shaped, perforate tubular ribs 6 which connect with the interior of the tube 1. Perforate webs 8 are riveted between each rib 6 and the tube 1. The flexible bag is clamped between the members 2 and 4. The invention is applicable to aircraft fuel tanks.
Patent GB-393944-A (GB)
Title: Improvements in or relating to knitted fabric and process and machine for producing same
IPC: D04B9/26
Filed: 1931-11-07
Abstract: 393,944. Knitting. STANDARDTRUMP BROS. MACHINE CO., Beach Street, Wilmington, Delaware, U.S.A.- (Assignees of Bristow, P. W. and Houseman, H. E. ; Edge Moor, Delaware, U.S.A.) Nov. 7, 1931, No. 30951. Convention date, April 11. [Class 74 (ii).] A knitted fabric has incorporated therein one or more wrap yarns extending in the direction of the wales, each wrap yarn in certain places being both interengaged by the bases of the main loops and forming loops lying with and plating the same main loops and in certain other places being tied up with the main loops and hidden thereby without plating the loops. The fabric is made on a machine having a stationary needle cylinder 2, Fig. 1, and a wrap finger cylinder 18 around which a cam ring 8 and yarn finger pattern mechanism carried thereby are rotated. The yarn finger actuating mechanism includes a number of cam levers 28, which are operated selectively by an intermittently rotated trick wheel, and a continuously operating cam lever 90 to engage respectively with butts 26, 27 on the wrap fingers.. The cams 28, 90 are spaced circumferentially about the circle of yarn fingers to enable a warp finger to be operated twice in succession and to co-operate therewith, return cams 94, 96 are provided. In the cam ring development, shown in Fig. 3, the cam 90 operates the yarn fingers to produce wrapping at zone A, the continued movement of the needles, in the direction of the arrow, through zone B causing the wrapped loop to be moved below the latch by cam 106. By movement through zone C the needles are lowered by cam 108 to a position in which further wrapping may take place at zone D by the action of cams 28 after which main yarn is supplied and stitches formed. The resultant fabric structure is shown in Fig. 5. In a modification the cam lever 90 is replaced by a number of cam levers forming half of those controlled by the trick wheel, this arrangement permitting wrapping to be effected selectively at two positions in the needle circle, so that known type of structure shown in Fig. 6 may be produced. Reference has been directed by the Comptroller to Specification 347,307.