baber/WOPTO huggingface dataset:
Patent GB-370794-A (GB)
Title: Improvements in or relating to wheel pullers and the like tools
IPC: B25B27/02
Filed: 1931-08-24
Abstract: 370,794. Assembling force fits. SCHAFER, M., 141, Zeppelinstrasse, Stuttgart, Germany. Aug. 24, 1931, No. 23701. [Class 83 (iv).] A device for drawing-off machine parts such as pulleys, bearings, bushes, &c. from other machine parts on which they are firmly seated, or for assembling such parts, comprises a screwed spindle 1 rotatable in a screwed bush 1a which is provided on the outside with screw threads 5, 6, of opposite hand. Nuts 7, 8 engage the threads 5, 6, the former carrying pivots 11 for two or more levers 9 and the latter having pivoted thereto at 13, links 14 pivoted at 15 to intermediate points on the levers. The free ends of the levers have hook-shaped ends 9d, and on rotating the bush 1a by a handle 4 so as to cause the nuts 7, 8 to approach or recede, the ends 9d are adjusted to grip the exterior of a pulley &c., after which, rotation of the spindle 1 by a handle 3 causes the spindle to engage the end of the shaft &c. and remove it from the pulley. To remove a bush 24 from a connecting-rod 23, a pressure plate 20 is used having an exchangeable bush 22 of slightly larger diameter than the bush 24. In all cases pressure pads 19<1> are provided for preventing wear of the spindle-end and supporting blocks 25 may be used with curved work. Extensions 29 may be attached to the levers 9, the extensions being divided at 30 to pass over the levers and secured thereto by pins 26 engaging the ends 9d and screws 28.
Patent GB-240470-A (GB)
Title: Improvements in or relating to the propulsion of boats
IPC: B63B1/32
Filed: 1925-09-23
Abstract: 240,470. Hickman, W. A. Sept. 25, 1924, [Convention date]. Screw propellers. - A hydroplane or high speed motor boat having a hull formed to produce a rearwardly directed rising wave has its semi-submerged propeller placed beyond the stern at a position approximating to the crest of the wave. Deflector plates may be attached to the stern to divide the wave and keep it clear of the shaft and propeller boss. The hull 7, Fig. 1, has an inverted V-shaped bottom 9 gradually flattening toward the aft end and carries on a framework the semi-submerged propeller 15, the overhang of the propeller being substantially at the position of the crest of the wave running from the bottom. To keep the shaft, boss and bracket clear of water under all speed conditions, the wave may be divided by deflector surfaces 19, Fig. 4, which are supported from the stem 11 and constitute upwardly inclined extensions of the bottom 13.
Patent GB-168242-A (GB)
Title: Improvements in or relating to ball-cocks
IPC: F16K31/24
Filed: 1920-08-14
Abstract: 168,242. Parks, A. G. Aug. 14, 1920. Ball and float valves.-A ball float valve is constructed with the float lever on the opposite side of the discharge nozzle to that of the outlet, and the plug is readily detachable. The nozzle 11 is formed of two parts at right-angles, the horizontal part being attached to the supply pipe, and also to the cistern by a collar 12 and nut 13. The ball lever 15 is pivoted on a split pin 16 between two lugs 14. The valve clcsure member comprises a plug portion with a seating 20, having lugs 18 which slide between guides 17. Holes 21 intersecting the central bore of the plug are bored upwards, and water is discharged through them when the plug is lowered. The plug is lifted by the lever 15 by means of the pin 22, and is detachable without removing the lever, when the pin 22 is withdrawn.
Patent GB-1453216-A (GB)
Title: Container filling method and apparatus
IPC: B65B1/06
Filed: 1974-05-29
Abstract: 1453216 Filling containers DEL MONTE CORP 29 May 1974 [4 June 1973] 23847/74 Heading B8C Apparatus for filling containers 17 with food comprises a vertical tube 41 through which the food moves under gravity as a column, and cut-off means 84 for recurrently cutting off portions of the column to provide measured masses for filling the containers 17. For canning spinach, the leaves are raised by a conveyer 58 and pass via a fluffer 44, comprising a rotor on oscillated levers 53, into a hopper 42, to build up the column in the tube 41, whose diameter corresponds with that of the cans 17. At the bottom of the tube 41, which is shaken on levers 46, 47, a measuring chamber 66 is defined by adjustable telescoped parts (66a), (66b), Fig. 6 (not shown), and portions of spinach, compressed under gravity, are released recurrently from the chamber 66 as the cutting blade 44 and a blocking plate 86, mounted out of phase on a common shaft 77, are rotated by an hydraulic motor 82. Injection of compressed air above each cut-off mass through a pipe (90), Fig. 6 (not shown), ensures its release from the chamber 66, the air being supplied in bursts which are synchronized with the cut-off means, and the cans 17 are supplied on a conveyer 93, stop fingers (97), Fig. 5 (not shown), being provided to position the cans 17 in turn below the tube 41. An alternative apparatus for canning cut peaches includes an input conveyer 124, Fig. 9, for processed peaches, a tank 126, means 128 for heating the peach/syrup slurry for sterilization, and a shaker feed device 122 for draining excess syrup back to the tank 126, the fluffer 44 being omitted.
Patent GB-706516-A (GB)
Title: Improvements in or relating to oscillators, particularly for radio receiving circuits, employing semi-conductor devices
Inventor: REEVES ALEC HARLEY
IPC: H03B7/06
Filed: 1951-10-12
Abstract: 706,516. Semi-conductor oscillators. STANDARD TELEPHONES & CABLES, Ltd. Oct. 3, 1952 [Oct. 12, 1951], No. 23862/51. Class 40 (6). [Also in Group XXXV] An oscillator circuit, particularly for use in super-regenerative or super-heterodyne radio receivers, comprises an N-type crystal rectifier of the kind described and claimed in Specification 706,514 and having a negative-resistance portion to its forward characteristic, a circuit having a reactive-component connected between the elec trodes of the rectifier, and means for biasing the rectifier, to operate over the negative-resistance portion of its characteristic. The crystal used may be of N-type germanium and may be employed either in an L-c oscillatory circuit or in an R-c circuit providing relaxation oscillations. In the super regenerative-receiver shown in Fig. 1 the rectifier 1 is associated with a circuit tuned to resonate, for example, at 100 Mc/s, and comprising an inductive loop 2, 3, coupled to the aerial 5, and a tuning condenser 4. A quenching oscillator, operating for example at 200 Kc/s, comprises a rectifier 13 condenser 14 and resistor 15 and generates relaxation oscillations which are applied to the rectifier 1 to bias it periodically to the negative resistance portion of its characteristic whereupon oscillations of ampliture corresponding to the received signals build up until quenched by the changing bias produced by the relaxation oscillator. In a modification, Fig. 3, the rectifier 37 is used to generate both the radio-frequency and quenching oscillations. The rectifier is associated with condenser 47 and resistor 48 and thus operates as a relaxation oscillator passing periodically through the negative resistance portion of its characteristic whereupon radio-frequency oscillations build up in the tuned circuit 38, 39 in accordance with the signal induced therein from the aerial 40. A superheterodyne receiver, Fig. 2 (not shown) comprises an L-c oscillator similar to that shown in Fig. 1, the output from which is heterodyned with the received signals by means of a conventional crystal rectifier (e.g. a silicon rectifier), the resulting signals being passed to the I.F. amplifying stages which may employ transistor triode amplifiers. Automatic frequency control may be achieved by deriving a direct-current error signal from a frequency discriminator operating at intermediate frequency and applying the same as a bias voltage to the oscillator rectifier. The oscillator circuit may also include a piezo-electric crystal, which may either be tuned to the fundamental of a sub-harmonic of the desired localoscillator frequency. In this case, automatic frequency control cannot be employed.
Patent GB-642868-A (GB)
Title: Improvements relating to pliers and like tools
IPC: B25B7/08
Filed: 1948-09-13
Abstract: 642,868. Pliers. KIMBER DIE & TOOL CO., Ltd., and KIMBER, W. A. F. Sept. 13, 1948, No. 23969. [Class 61(ii)] The box joint at the pivot of a pair of pliers or like tool having crossed jaws with handles a, b is made by forming a transverse recess c in the member a of a depth of about two-thirds of its thickness and forming a complementary recess f on each side and of a depth of about one-third of the thickness of the member b, the assembly being completed by a plate g similar in shape to the recess c and welded, brazed or otherwise united to shoulders on the member a. The stepped end portions d of the recess c are formed as parallel or arcuate bearing surfaces for the member b. The parts are apertured at h to receive a pivot pin.
Patent GB-1131830-A (GB)
Title: High-pressure seal assembly
IPC: F16J15/18
Filed: 1967-05-23
Abstract: 1,131,830. Seals. KOPPERS CO. Inc. 23 May, 1967 [22 June, 1966], No. 23994/67. Heading F2B. A seal for a pump or actuator rod 10 comprises a first stage seal 20 consisting of an outer ring 24 axially compressed by a tubular casing 126 to radially press an inner ring 22 into engagement with the rod, and a second stage seal 36 consisting of V-rings compressed within the tubular casing to exert a radial pressure less than that of the first stage. The inner ring 22 may be made of P.T.F.E., and the outer ring 24 may be made of synthetic rubber and protected by a steel anti-extrusion ring. The V-rings may be made of neoprene impregnated duck fabric. The seals may be mounted in a housing 112 by a copper sealing ring 148. Shims may be used to alter the pressure exerted by the outer ring 24. In modifications, the seals may be employed in tandem, back-to-back or in an inverted position so as to seal against the housing.
Patent GB-451894-A (GB)
Title: Method for the treatment of chlorates for the purpose of reducing the risk of fire
IPC: C01B11/14
Filed: 1935-08-28
Abstract: An alkali metal carbonate or bicarbonate with or without an alkali metal chloride, is added to a chlorate, so that the risk of fire is minimized when organic materials such as wood or cloth become impregnated with a solution of the chlorate when the latter is used. Compositions consisting of 95 per cent sodium chlorate and 5 per cent sodium carbonate, and of 50 per cent sodium chlorate, 5 per cent soda, and 45 per cent sodium chloride are referred to.  Reference has been directed by the Comptroller to Specifications 6431/96, and 28807/97, [both in Class 9].
Patent GB-838316-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/38
Filed: 1957-07-30
Abstract: 838,316. Windscreen wipers. REGIE NATIONALE DES USINES RENAULT, and SUISSE, M. July 30, 1957 [April 27, 1957 ; July 2, 1957], No. 24117/57. Class 138(1). A windscreen wiper is constituted by a frame and a wiper blade, the latter being reinforced by an armature when so required, characterised in that the said frame is given a profile such that the wind stream passing over the windscreen produces an over pressure' at the side of the frame remote from the windscreen and a depression at the side of the frame nearer the windscreen so as to force the blade against the windscreen, the said profile preferably comprising a convex face directed towards the blade and a concave or flat face directed away from the blade. As shown, the cross-section of the frame may take the form of a U, Fig. 5, an L, Fig. 6, or an inverted airfoil, Fig. 8. The edge of the frame which meets the air stream mav be inclined towards the windscreen, for example, by a twist given to the blade carrying arm or by the use of an asymetrical stirrup coupling the wiper arm to the frame. Transverse partitions 19 may be provided along the frame to keep the airstream perpendicular to the frame and a blade 25, Fig. 14, may be used, only the tip of which flexes at 29.
Patent GB-141611-A (GB)
Title: Improvements in or relating to children's painting books
IPC: B42D3/12
Filed: 1919-10-02
Abstract: 141,611. Valentine, H. J. Oct. 2, 1919. Copybooks. - A piece of cardboard c, which is provided with colours and may serve as a palette, is pivoted by a simple rivet or eye d near one edge of the cover a or back b of a child's painting book, so that it can be swung out for use or inwards into the book. According to the Provisional Specification, the cardboard is treated or covered with a substance impervious to water.
Patent GB-1339985-A (GB)
Title: Electrical socket connector
IPC: H01R13/193
Filed: 1971-04-19
Abstract: 1339985 Two part couplings CAMBRIDGE THERMIONIC CORP 19 April 1971 [20 July 1970] 24184/71 Heading H2E A connector comprises a socket-contact formed of a resilient conductive strip and means which is movable to compress a portion of the strip and move a curved portion of the strip against a complementary male-contact inserted in the socket, thereby making or increasing the pressure of connection between the contacts. The strip 16 is held within a fixed member 20 and a movable member 22 with one free end engaged by a lip 36 and the other extending through the fixed member for connection to an external circuit, and in the relaxed condition (Fig. 2) the curved portion 16À4 is separated from a flat portion 16À23 so that a pin 12 (which may be the terminal of an integrated circuit) can be inserted with little force. Connection between the inserted pin 12 and the contact surface 26 of the curved portion is ensured by moving member 22 to the position of Fig. 4, compressing the portion 16À3 and forcing the curved portion to wipingly engage the pin and press it against the flat portion 16À23, the member 22 being retained in the connected position by a pin 38. In another embodiment (Figs. 5-9, not shown) a connector comprises a plurality of socket contacts housed in a fixed base (120) resting on a circuit board, a movable base member (122) having a central opening (164) through which the male contacts (112) enter and screws (138) which are turned to move the member (122) relative to base (120) and bring the socket-contacts into engagement with the male contacts. In Fig. 10 (not shown) the movable base member (222) moves relative to and engages in the fixed base member (220) by a snap fastener (238) engaging a grooved slot (239). A further embodiment (Figs. 11-15, not shown) shows the edge of a printed circuit board (314) engaged between pairs of socket contacts (316) with a movable base member moved either by screws (338) or a cam-lever (356).
Patent GB-865916-A (GB)
Title: A process for the production of 1,8-dihydroxy-2,6-octadiene and octamethylene glycol
Filed: 1957-07-30
Abstract: 1, 8-dihydroxy-2, 6-octadiene is prepared by treating 1, 8-diacetoxy, 2, 6-octadiene with anhydrous methanol in the presence of hydrogen chloride.  The unsaturated diol thus obtained may then be directly hydrogenated e.g. in the presence of Raney nickel to give octamethylene glycol.  The diacetoxy compound may be prepared by reacting a solution of 1-chloro-4-acetoxy-2-butene e.g. in acetonitrile, with iron powder and the butene compound may be prepared by reacting 1, 4-dichloro-2-butene with sodium acetate.  An example of the process starting from 1, 4-dichloro-2-butene is given.
Patent GB-361432-A (GB)
Title: A combined observation mirror and signalling device for road vehicles
IPC: B60Q1/34
Filed: 1931-06-12
Abstract: 361,432. Look-out reflectors ; signals. WADDINGTON, B. R., 5, Winter Street, Sheffield. June 12, 1931, No. 24208/30. [Class 103 (ii).] In a combined observation mirror and signalling- device for road vehicles of the type in which the signalling-device comprises an indicating-arm operated by cable mechanism, the metal arm D is illuminated on both sides by a single lamp. The mirror A is mounted on a metal frame B closing the front of a casing housing the arm D which is secured to a hollow steel shaft Q carrying a sprocketwheel S, a lamp bolder U secured to a fixed casting T passing through the shaft Q. The lamp P is situated immediately behind a hinged piece a of the arm D having coloured glass sections, one of which can be seen through a glass lens C carried in the frame B and is changed by movement of the arm D. The blade of the arm D is of hollow metal construction being wide on the outer edges and tapering towards the centre where a slot g, Fig. 7, is left, and the lamp P, being in line with the centre of this slot illuminates both sides of the arm.. The position of the arm is controlled by a lever K secured to a grooved pulley-wheel I and to a fibre cam-wheel J which actuate respectively a Bowden cable X and a contact-switch M controlling the lamp P. A spring returns the arm to its normal position. The cable is connected to one end of a chain passing around the sprocket wheel S and is secured to the spring, the spring, chain and part of the cable being contained in two tubular parts E, E1 of the adjustable supporting bracket.
Patent GB-406673-A (GB)
Title: Improvements in jars or like receptacles for mushroom spawn
IPC: A01G1/04
Filed: 1932-08-31
Abstract: 406,673. Receptacles for growing plants. BLANCS FRANCAIS DE SEMIS LE CHAMPION, 27, Rue de Dijon, Bordeaux, France. Aug. 31, 1932, No. 24306. Convention date, Aug. 4. [Class 6 (ii).] A receptacle for the development and transport of mushroom spawn comprises a cylindrical body 1 of glass, earthenware or metal formed with slopes 4 at each end for securing caps 2 by engagement with recessed portions 6. In use, the spawn is placed in the receptacle in layers or discs and is removed by taking off both caps and pushing the contents axially.
Patent GB-938324-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/18
Filed: 1962-06-25
Abstract: 938,324. Centrifugal separators. WESTFALIA SEPARATOR A.G. June 25, 1962 [June 26, 1961], No. 24400/62. Class 23. In a separator comprising a bowl having sludge outlets 7, Fig. 1, controlled by a piston valve 4 axially displaceable by the pressure difference of a control liquid supplied to opening and closure chambers 1, 2, control means are provided for varying the free surface of the control liquid with respect to the bowl axis in either the opening or the closing chamber thereby varying the pressure differential exerted on both sides of the piston valve. The control liquid is fed to the chambers 1, 2 through a conduit 18 and channels 19, 20. Chamber 2 is connected through a channel 8 to a chamber 9 into which extends a scoop pipe 10 may be radially displaced or pivoted to shift the free surface of the control liquid in chamber 2 so as to adapt the liquid closing pressure to the specific weight of the sludge being separated. In a modification the scoop pipe extends in a chamber in communication with the opening chamber 1. In a further modification, Fig. 2, a radially displaceable overflow pipe 11 is provided in the bottom of the separator drum in communication with the chamber 2 through a channel 14. Alternatively the pipe 11 may open directly in the chamber 2.
Patent GB-199345-A (GB)
Title: Improvements in or relating to telephone repeaters
IPC: H04B3/38
Filed: 1922-10-09
Abstract: 199,345. Siemens & Halske Akt.-Ges. June 15,1922, [Convention date]. Two-way repeating systems.-Relates to means as described in Specification 199,344, [Class 40 (iii), Telegraphs, Electric], for preventing " singing " in telephone repeating systems and consists in making provision for reducing the amplification of those particular frequencies that lie in the region of the natural frequency of the line. For this purpose one or more suitablydamped oscillatory circuits L, C and L<1>, C<1> tuned to the frequencies to be weakened are inserted in the branches b, b of the system.. Where more than one such circuit is used each may be tuned to a different frequency in order to broaden the frequency-band to be weakened. Similar circuits may also be inserted in the input leads to the amplifier. Specification 151,140 also is referred to.
Patent GB-1060409-A (GB)
Title: Basic pyrazole azo dyes
Inventor: HANSEN GUENTER
IPC: C09B29/033
Filed: 1964-06-12
Abstract: The invention provides dyes of general formula <FORM:1060409/C4-C5/1> in which R1 is an unsubstituted or substituted alkyl or phenyl radical, R2 is an unsubstituted or substituted alkyl radical, A is a divalent radical which is necessary for the completion of the right-hand side of the formula to a five-membered or six-membered, unsubstituted or substituted mononuclear or polynuclear heterocyclic ring system, E is an inorganic or organic simple or complex anion, p is 3 or 4, n is 1 or 2. The dyes are prepared by coupling an amine of formula <FORM:1060409/C4-C5/2> in which the figures are as above and R1 may also be hydrogen, with a heterocyclic cyanomethyl compound of formula <FORM:1060409/C4-C5/3> (figures as above and m is 1 or 2) and alkylating the product. The two values of R2 in the final product may be different and obtained by alkylating the dye product with an alkylating agent different from the value of R2 present in Formula III. The dyes are water-soluble and give yellow-red shades, especially useful in polyacrylonitrile and copolymers thereof.
Patent GB-378655-A (GB)
Title: A card-board or like puzzle for advertising purposes
IPC: A63F9/08
Filed: 1931-09-01
Abstract: 378,655. Puzzles. DARLEY, W. B., 35, High Street, Burton-on-Trent. Sept. 1, 1931, No. 24492. [Class 132 (iii).] A sheet of cardboard &c. is shaped as a box or other article and is provided with a hinged flap d which is held down by two loops a, h which pass through holes e, g in the flap d and cardboard b. The ends of the loop a are stuck to the underside of the cardboard, the ends of the loop h being provided with tags &c. j which are too large to pass through the hole g. The puzzle is to disengage the loops so that the flap d can be raised and is solved by bending the cardboard and passing the loop a through the hole g. A slit i may be provided through which the tags j and ends of the loop h can protrude. When the flap d is raised it may disclose an advertisement.
Patent GB-1392383-A (GB)
Title: Dynamic magnetotherapeutic device
IPC: A61N2/00
Filed: 1972-05-25
Abstract: 1392383 Magnetotherapeutic device J MIQUEL 25 May 1972 [2 June 1971 4 Aug 1971] 24622/72 Heading A5R A megnetotherapeutic device comprises a head 7 for placing in contact with the body 10 to be treated, at least one permanent magnet 8 in the head, and electromagnetic means connected to the head for reciprocating the head. As shown, a rod 6 connects the head 7 to a first plate 3 of soft iron, and struts 4a connect the plate 3 to a second plate 2 of alveolar plastics. A further strut 4 connects the plate 2 to the stator 1 of an electromagnet having windings 5 whereby vibrations (adjustable in frequency) may be applied to the head. The head 7 may be detachable and inter-changeable with other heads.