baber/WOPTO huggingface dataset:
Patent GB-361516-A (GB)
Title: Improvements in or relating to manhole covers
IPC: E02D29/14
Filed: 1930-10-08
Abstract: 361,516. Manhole covers. BARRANCE, C., 2, Oak Terrace, and BARRANCE, G. C., 9, Oak Terrace, both in Leek, Staffordshire. Oct. 8, 1930, No. 30073. [Class 107.] A manhole cover or the like a is provided with a bearing block or wedge b adapted to be adjusted vertically by means of one of the usual keys for lifting and replacing the cover, in order to permit a variable fastening pressure upon an inner peripheral part of the frame. The wedge b; which has a downwardly tapered outer face for engagement with a tapered part l<1>, Fig. 2, on the inner wall of the frame, is provided with ribbed sides bl in slidable engagement with a correspondingly grooved guide recess c in the lower part of the cover and is retained in such engagement by a pin d projecting into a slot e in the wedge. The upper face of the wedge is provided with a keyhole slot f which communicates with a cavity h in the interior of the wedge and is located in register with one of the usual slots g arranged in the cover for accommodating the lifting keys. In a modification, the inner face of the wedge may be tapered for engaging a correspondingly tapered face of the guide recess c in the cover. In addition to the wedge b the cover is provided with two spaced bearing strips j, k engaging the inner wall of the frame. When the cover is lowered by the usual keys, the strips j, k engage the inner wall of the frame and the wedge b automatically drops or is pressed downwards by the lifting key on to the tapered part l<1>. Rotary movement is prevented by the engagement of a notch m on the cover with a projection n on the frame. The Provisional Specification describes the inner wall of the frame as of inclined form for engaging the correspondingly tapered peripheral strips and wedge b.
Patent GB-737637-A (GB)
Title: Improvements in builders scaffolding trestles
IPC: E04G1/32
Filed: 1953-10-31
Abstract: 737,637. Trestle stands. MARSDEN, J. R. Dec. 4, 1953 [Oct. 31, 1953], No. 30115/53. Class 52 (3). The end of a scaffold plank s is supported on a scaffold trestle comprising a horizontal U-shaped frame E adapted to be mounted at various heights in a vertical frame A by means of bolts J. The plank passes between bars G, G<SP>1</SP> fixed to the frame E and is secured by a screw cleat L. The ends of the frame E are turned up and have a bearer P for a decorator's paste board.
Patent GB-1122750-A (GB)
Title: Agents for the control of aquatic weeds
Inventor: DICKORE KARLFRIED
IPC: A01N/
Filed: 1967-06-29
Abstract: Preparation of dicyanoketene-di-n-butylmercaptal.-To a solution of malonic acid dinitrile in N,N-dimethylformamide there is added sodium hydroxide, followed by carbon disulphide, further sodium hydroxide, and finally butyl bromide.  The organic phase is taken up in benzene and washed with water to give a yellow oil of B.P. 163 DEG  C./0.4 mm. Hg.  In an analogous manner there may be obtained: dicyanoketene-dimethallylmercaptal, cyano - methoxycarbonyl - ketene - diethylmercaptal, cyano - methoxycarbonyl - ketene - di - n - propylmercaptal, cyano - methoxycarbonyl - ketene - di - n - butylmercaptal, cyano - ethoxycarbonyl - ketene - di - n - butylmercaptal, cyano - methoxycarbonyl - ketenedicrotylmercaptal, cyano - aminocarbonyl - ketene - di - n - butylmercaptal, cyanoethylaminocarbonyl - ketene - di - n butylmercaptal, cyano-methylaminocarbonyl-ketene-di n butylmercaptal, cyano-dimethylaminocarbonyl - ketene-di - n - butylmercaptal, and ethoxycarbonyl - di - n - butylmercaptal.ALSO:A herbicidal composition for combating aquatic weeds contains a ketenemercaptal of formula <FORM:1122750/A5-A6/1> , wherein R1 is H or CN; R2 is CN, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl or alkoxy carbonyl; and R3 and R4 are alkyl or alkenyl; together with a solid diluent or a liquid diluent containing a surface agent.  The preferred ketenemercaptals are of formulae (NC)2 = C = C = (SC4H9)2; C2H5OOC.CH = C = (SC4H9)2; NH2OC.C (CN) = C = (SC4H9)2; CH3OOC.C (CN) = C = (SC2H5)2; (NC)2 = C = C = <FORM:1122750/A5-A6/2> ; and H3C.NH.OC.C(CN) = C = (SC4H9)2.
Patent GB-405419-A (GB)
Title: Improvements in or relating to sliding windows and the like
IPC: B60J10/04
Filed: 1932-10-27
Abstract: 405,419. Rain-excluding means for windows. LYNES, L., 75, Lennard Road, Penge, and BECKETT, LAYCOCK, & WATKINSON, Ltd., Acton Lane, Harlesden, both in London. Oct. 27, 1932, No. 30186. [Class 20 (iii).] The lower edge of a sliding window panel for a vehicle, building, or other structure, is provided with gutters 30, 31 with inclined ends 13 on each face by which water is led to side frame channels 29 and thence to funnels 27 from which it is drained to the outside of the structure by pipes 28. An inner rubber pad 18 having tapered grooves 20 is provided on a spring- pressed hinged member 15 and an outer fixed rubber strip 23 on the garnish rail, each having a drip plate 22, 26. Water channels may be formed on the pads 18, 23.
Patent GB-299703-A (GB)
Title: Improvements in centrifugal separators
IPC: B04B1/08
Filed: 1928-10-19
Abstract: 299,703. M÷lbach, E. B. Oct. 29, 1927, [Convention date]. Density separators.-A centrifugal separator for liquids has main separating discs 7 and intermediate central discs 8; the latter discs 8 divide the spaces between the main discs into annular spaces 11, 12 which are in communication with groups of channels running to the inlet and outlet. The stack inside the bowl 6 is built up of units, each consisting of main and intermediate blades 7, 8, Fig. 3. Holes through the units form channels 13 when the stack is assembled, and these channels are in communication with the spaces 11 beneath the intermediate discs 8. Radial apertures 14 in the units communicate between the central channel 9 and the spaces 12 above the intermediate discs 8. The liquid to be treated is supplied to the central channel 9 and passes through the apertures 14 to the spaces 12. The heavy component moves outwards to the wall of the bowl and passes up through the outlet 22 to the chamber 19 and discharge pipe 21. The light component passes inwards under the discs 8 to the channel 13, the chamber 18 and discharge pipe 20. In a modification the incoming liquid is led under the bottom plate of the stack to the circumference of the bowl. A modified form to work horizontally is shown in Fig. 8. The liquid is supplied to ani annular feed chamber 47 at one end of the stater 44, and passes from this chamber through the passage 61 to the spaces between the discs. The heavy component passes outwards along the inside of the discs 59 to the volute 49 and the discharge pipe 50; the flow is assisted by pump blades 58. The light component passes inwards under the intermediate discs 60 to the channel 62, the annular chamber 56, the volute 51 and discharge pipe 52; the flow is assisted by pump blades 57. Choke valves may be arranged in each discharge pipe 50, 52. Pipes 63, 64, 65 serve to furnish air or water to the space between the rotor and the stator.
Patent GB-463578-A (GB)
Title: Improvements relating to means for heating water in domestic and other water supply systems
IPC: F24H1/10
Filed: 1935-11-02
Abstract: 463,578. Electric water heaters. GLOVER, C. Nov. 2, 1935, No. 30292. [Class 39 (iii)] In a domestic heater in which water flows through a spiral tenuous conduit surrounding electric heating elements a and then flows in the opposite direction through a coaxial tube b, the spiral conduit is of duplex form provided around the inner and outer surfaces of a spirally grooved tube g placed between two coaxial tubes b, i. Water from a tap enters at e<1> into both spiral channels and returns over the elements a to pass through a tube m to the bottom of a coaxial tube k from which it passes at the top to an outlet tube n. The tube b is closed at the top by a disc c and the tubes i, k are closed at the ends i<1>, k<1>. The spiral groove is formed in the tube g by rolling. The switch for the elements a may be thermostatic or interconnected with the water tap.
Patent GB-630058-A (GB)
Title: Improvements in or relating to means for raising and lowering door and like curtains
IPC: A47H5/08
Filed: 1947-11-14
Abstract: 630,058. Suspending curtains. VOGUE MANUFACTURING CO., Ltd., and BURR, T. E. Nov. 14, 1947, No. 30304. [Class 52 (v)] Means for raising and lowering a portiÞre comprise a right angled bracket 1 to which a U-shaped carrier 5 is pivotally connected by a rivet 4. A. rotatable cord-guide roller 7 is connected between the vertical links of the carrier. A bar 8 prevents the cord C from being displaced. In use one end of the cord C is attached to the bottom of the portiÞre passed over the roller 7 and connected to the door frame. To prevent the cord from fraying the limbs of the U-shaped carrier are slit and bent outwardly to provide a rounded surface 14. Reference has been directed by the Comptroller to Specifications 8221/98, 22539/03, 11498/04, [all in Class 52], and 16380/10, [Class 52 (v)].
Patent GB-397701-A (GB)
Title: Method of and means for observing the tension occurring, while the nuts are being screwed on, in the jointing bolts of connecting rod big ends
IPC: F16B31/04
Filed: 1932-10-28
Abstract: 397,701. Connecting-rods. MASCHINENBAU AKT.-GES. VORM. EHRHARDT & SEHMER, Saarbrucken, Germany. Oct. 28, 1932, No. 30307. Convention date, Nov. 21, 1931. [Class 122 (i).] In connecting-rod big ends, comparison bars e are introduced into the bores of the bolts to determine the variation of the lengths of the bolts due to tension. The bars e are screwed to the tops of the bolts b. The angular movement necessary to tighten the nut c is determined by graduations g. A depth gauge is used to determine the distance between the ends of the bars e and the heads h. A decrease in the twist to effect the same bolt elongation indicates that the bolt has been damaged.
Patent GB-1477014-A (GB)
Title: Screw propeller assemblies
IPC: B63H1/20
Filed: 1974-07-10
Abstract: 1477014 Marine propellers A JACKSON 10 July 1974 [10 July 1973] 30577/74 Heading B7V A screw propeller is connected to the drive shaft 1 by a universal joint 2, 3 comprising a ball 2 fixed to the shaft 1, and two rings 3 with part spherical bearing surfaces 4 engaging the ball, and is oscillated about axes transverse to the drive shaft 1 by means of a swashplate 15 driven by a shaft which is concentric with the drive shaft 1. The two shafts are preferably driven in opposite directions as by the bevel gearing shown. Lugs on the rings 3 project into axial slots 6 in the ball, and transmit the driving torque. A ring 8 carrying the propeller blades is bolted by bolts 12 to the rings 3. The swashplate 15 has a bearing face 17 which engages the end surface of one of the rings 3, either directly or through a ball or roller race.
Patent GB-741535-A (GB)
Title: A method for coating pipe-lines with metal and apparatus for carrying out this method
IPC: B05B13/06
Filed: 1953-11-06
Abstract: 741,535. Coating with metals. VON ARX & CO. AKT.-GES., P. Nov. 6, 1953 [Nov. 6, 1952], No. 30736/53. Class 82 (2). In a method of internally coating pipe-lines with metal by spraying, and especially of coating pipe-lines of hydro electric power stations with zinc, a carrier having metal-spraying means is rotated on a carriage circumferentially of the pipe line while the carriage is moved axially along the pipe line. As shown, the carriage frame 1 is provided with wheels 5 for movement in the pipe 26 and spray guns 13 are mounted on carriers 14 which are rotated with rings 10 and 11 by engagement of gear wheel 48 with a toothed sector 47 attached to the ring 10, the wheel 48 being driven through gearing by a motor 56, the gearing being reversed at each end of a 90 degree rocking of the spray guns by magnetic clutches 52 and 53 operated by limit switches on the frame actuated by strikers on the ring 10. Guide rollers 23, adjustable with respect to the carriers 14 ensure that the spray guns are maintained at the desired distance from the pipe walls; the carriers 14 are urged outwardly by springs in casings 16. Combustion gases are supplied to the guns through flexible pipes, connected to stationary gas cylinders not on the carriage, and the metal wire 27 fed through tubes 35 and 28 from rollers 36. Handles 43 for the adjustment of wheels 5 allow the use of the apparatus for pipes of various diameters, and the carriage may be pulled along the pipe by cables attached at 7 and 8. In an alternative form, the motor 56 is used to drive the carriage by provision of gearing to the wheels 5, and the gas cylinders are also mounted on the carriage.
Patent GB-929572-A (GB)
Title: Improvements in and relating to electric switches
Inventor: SMITH KENNETH GRAHAM
IPC: G11B15/10
Filed: 1958-09-26
Abstract: 929,572. Keyboard switches. N.S.F. Ltd. Nov. 13, 1959 [Sept. 26, 1958], No. 30808/58. Class 38 (5). In a switch having a plurality of self-latching buttons wherein the operation of any one button releases a previously operated button at least one button must be moved laterally before it can be depressed to actuate its associated contacts. The push-bar 14 carries contacts 26, 27 for sliding co-operation with fixed contacts 23 but a notch 35 engages the edge of the guide slot in support plate 10 to prevent the bar 14 being depressed until it has first been moved laterally against the action of a small leaf-spring 36. An "off" push-bar without contacts as above is provided for releasing the other bars and additionally operates a small snap-action double-pole switch (Fig. 1, not shown).
Patent GB-267204-A (GB)
Title: Pianoforte tone improver
IPC: G10C3/06
Filed: 1925-12-07
Abstract: 267,204. Thompson, G. Dec. 7, 1925. Pianoforte soundboards.-To improve the tone, tension is applied to the rear of the soundboard by a spring device adjustable by a screw passing through a bracket. The spring, shown in plan in Fig. 1, is cut bow form with a median loop 8 which carries a sleeve 9 in which screws a pin 11 with head. 12 abutting against a plate or bracket 13 secured to a horizontal bracing 2. The ends of the spring are attached to a bar 5 with hook 4 engaging an eye 3 inserted in the sound board 1. The plate 13 has supporting sidecheeks 14, and is provided with a number of vertically .arranged holes for the pin 11 permitting variation of the position of the eye 3. Specification 1060/79 is referred to.
Patent GB-951030-A (GB)
Title: Improvements in or relating to gun stocks
IPC: F41C23/14
Filed: 1962-08-10
Abstract: 951,030. Gun stocks. E. WOLF, and ARBOR HANDELSGESELLSCHAFT FUR HOLZ UND INDUSTRIE-ERZEUGNISSE. Aug. 10, 1962 [Aug. 10, 1961], No. 30851/62. Heading F3C. The cheek part 2 of the butt of a gun is made adjustable relative to the main part 1a of the butt by means of parallel rods 15, 16 secured to the part 2 and engaging recesses 18, 19 in the main part 1a, one rod 16 being subject to action of a spring 20 located in recess 19 and the other rod 15 having a projecting screw head 21. The part 2 is secured in its adjusted position by means of a disc 22 clamped to the rods 15, 16 by means of a screw-threaded pin 23 integral with the disc and engaged by a grip nut 24. The screw head 21 acts as a stop which is engaged by the disc 22 to prevent complete separation of the cheek part 2 unless the grip nut 24 is fully unscrewed.
Patent GB-1186093-A (GB)
Title: Improvements in or relating to Light Beam Amplifiers.
Inventor: KOGELNIK HERWIG WERNER
IPC: H01S3/081
Filed: 1967-07-05
Abstract: 1,186,093. Lasers. WESTERN ELECTRIC CO. Inc. 5 July, 1967 [12 July, 19661, No. 30934/67. Heading H1C. To prevent oscillations being generated in a light beam amplifier comprising an active medium located between two reflectors of which at least one is curved, the light beam introduced into the amplifier is able to make only a limited number of traverses of the active medium before emerging from the arrangement. As shown in Fig. 1, the amplifier comprises a quartz transparent tube 13 sealed by windows 14, 16 at Brewster's angle and containing a laser active medium such as carbon dioxide, the tube being located between two non-confocal spherical reflectors 11, 12 having respective input and output apertures 18, 21 for the beam 19 to be amplified. The apertures may be cut out portions of the reflectors or non-reflective portions, and for a total of five traverses of the light beam through the active medium, each aperture comprises a sector of a circle covering an angle of 120 degrees, the two sectors being non-aligned. More traverses are possible with sectors of smaller angle, the number of transverses being limited to below those necessary to establish laser oscillation by self-excitation. Masks defining the sectors could be used as an alternative or reflective spots may be used.
Patent GB-1158233-A (GB)
Title: Improvements relating to Tape Playing Apparatus.
Inventor: LANE NORMAN
IPC: G11B15/675
Filed: 1966-07-09
Abstract: 1,158,233. Tape cassette players. BSR Ltd. 4 Oct., 1967 [9 July, 1966], No. 30939/66. Heading G5R. A cassette is latched in a tape player by a catch mounted on a transport for shifting the cassette between operative and inoperative positions such that loading and unloading can only be effected with the cassette in the inoperative position. The casette (12, Fig. 1) is guided into a cavity (9) by rollers along one wall, and a latching recess (27) engaged by a roller (26) on a bell-crank (25) carrying pins 28, 32 engated in slots 29, 33. The slot 33 is L-shaped so that the pin 32 can enter the portion 33b to allow the catch to be released from the cassette when loading. To shift the cassette from the operative position shown, slide 44 is pushed in direction B so that one 53 of two rollers 52, 53, on a plate 51 pivoted to the slide 44, engages an extension 15 of the capstan and a flange 43 on a second slide 36, whereby the slide 36 is driven outwardly (direction A). Movement of slide 44 in direction A engages roller 52 with capstan extension 15 and flange 42 to drive the slide 36 inwardly (direction B). The slide 36 is held in either of its two positions by a toggle spring 54 and a pivoted lever 55 coupled to the slide 36. Only one roller 52 or 53 need be provided, preferably 53 to provide drive to the inoperative position.
Patent GB-704250-A (GB)
Title: Furnace conveyors
Inventor: WILLIAMS REGINALD CHARLES
IPC: B65G17/06
Filed: 1950-12-19
Abstract: 704,250. Endless chain conveyers. G. W. B. ELECTRIC FURNACES, Ltd. July 27, 1951 [Dec. 19, 1950], No. 30960/50. Class 78 (1) A furnace conveyer comprises two or more parallel chains connected together, the chains supporting members of channel section in which is housed and from which protrudes material adapted to support the charge without scratching or marking it. In the embodiment shown in Figs. 1, 2, lengths of asbestos rope 4 for supporting'the charge protrude from channel section members 3 which serve to connect the chains 1 together. In Fig. 3, the asbestos rope is mounted in channel sections 11 extending longitudinally of the chains 12.
Patent GB-1335870-A (GB)
Title: Process for the preparation of carboxylic acids
Inventor: SANTAMBROGI A
IPC: C07C61/08
Filed: 1971-07-01
Abstract: 1335870 Carboxylic acids SNAM PROGETTI SpA 1 July 1971 [2 July 1970] 30975/71 Heading C2C Carboxylic acids are prepared by subjecting a mono-metallic salt of a carboxy sulphonic acid to pyrolysis. The carboxysulphonic acid preferably has the general formula wherein R and R<SP>1</SP>, which may be the same or different, are each a hydrogen atom, a saturated or unsaturated, cyclic or acyclic aliphatic hydrocarbon radical having up to 12 carbon atoms and which is optionally substituted by at least one group selected from -COOH and -CN; or aromatic hydrocarbon radical which optionally contains an alkyl substituent having up to 12 carbon atoms; or R and R<SP>1</SP> together form a saturated or unsaturated ring optionally substituted by at least one alkyl, anhydride or lactam group.
Patent GB-237550-A (GB)
Title: Improvements in and relating to automatic weight balancing devices for beam balances, weighing machines, weigh-bridges and the like
IPC: G01G1/00
Filed: 1924-12-30
Abstract: 237,550. Rival, T. July 28, 1924, [Convention date]. Loose-weight apparatus. - In an automatic weighing machine, the units of the weight are indicated on one board or dial and the fractions on another, and the load counterbalancing mechanism comprises a main balance connected to a pendulous resistant through an auxiliary balance which is mounted on one arm of the main balance, the weight plates of both balances being adapted to pick up loose weights. As shown, the machine comprises a main beam 1 pivoted at O and carrying at one end A a goods plate 2 and at the other end B a frame 3 integral with weights plates K, L. Pivoted on an extension F of the frame 3 is a second beam 4, the arms of which are of the same length as those of the lever 1. The inner end b of the second beam 4 is connected to a pendulous lever 5 and carries weights plates k, l, while the outer end a carries a weight T adapted to counterbalance the lever 5 in its maximum position. A knife-edge e on the weights plates k, l is adapted to engage a knife-edge R on the frame 3 and thereby prevent the beam 4 from pivoting beyond the horizontal. Two equi-armed levers 6, 7 provided with stirrups 8 are each adapted to support two series of weights P, Q, the series P being each provided with two projections 9 adapted to be engaged by the weights plates, and the series Q each with one projection for engagement by the weights plate K, L only. The action of the machine is such that the application of a load exceeding one unit causes the lever 5 to rise to its maximum position, after which the first weights are reached by the weights scales k, l and the lever is depressed to its minimum position, at which position the lower projections of the hooks P are reached by the weights scales K. L and the first weights P. Q are raised. This action' is repeated until the load is balanced or the capacity of the machine reached. Indicating-mechanism.-A double index hand connected to the pendulous lever 5 registers with a dial 10, Fig. 12, marked with two sets of differently coloured graduations one of which ascends in each direction of the scale. Below the dial are a series of apertures 11 disposed in staggered relation and behind which an index 12, Fig. 11. marked in two colours is vertically positioned according to the position of the beam 1. The number of units of the weight is indicated by the number marked adjacent the topmost aperture through which the index 12 is visible, and the set of graduations of the dial upon which the fraction is to be read, is indicated by the colour shown through that aperture.
Patent GB-604018-A (GB)
Title: Electrostatic bonding machine
IPC: B29C65/04
Filed: 1945-11-20
Abstract: 604,018. Dielectric heating. SINGER MANUFACTURING CO Nov. 20, 1945, No. 31273. Convention date, Feb. 7. [Class 39(iii)] [Also in Group VIII] An electrostatic bonding machine comprises a frame including a work-support, a shaft journalled in the frame. non-rotary electrodes carried by the frame and providing a bonding zone, a high frequency electronic oscillator connected to the electrodes, means operated by the shaft for imparting relative movements to the electrodes to cause them intermittently to clamp the material, and for giving them feed and return movements to advance the material while the electrodes are in contact therewith, and a presser member for holding the material against the work-support on the return movement of the electrodes. The upper electrode 72 has an elongated workengaging portion 73 which is straddled by a bifurcated presser member, while the lower electrode 46 is attached to a block of polystyrene 48 and protrudes through a slot in an insulating plate mounted on the work-support. The feeding movements may be greater or less than the length of the work-engaging faces of the electrodes.