baber/WOPTO huggingface dataset:
Patent GB-790400-A (GB)
Title: Purification of polyvinyl acetals
IPC: C08F8/28
Filed: 1956-05-24
Abstract: A polyvinyl acetal resin is purified by adding a non-solvent liquid to a solution of an impure polyvinyl acetal resin, the amount and temperature of the non-solvent being such that a gel of said resin and liquor, containing solvent and non-solvent, are produced and then separating the liquor from the gel.  Specified acetals are those produced by the reaction of formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde or valeraldehyde with polyvinyl alcohol or polyvinyl esters in the presence of acidic catalysts, e.g. sulphuric acid, in a liquid medium.  Specified solvents are methanol, ethanol, propanol and acetic acid while water or water-solvent mixtures are used as the non-solvent.  The separated gel may be further dissolved in a polyvinyl acetal solvent and the purification repeated.  The amount and temperature of the non-solvent may be such that there are dissolved in the liquor the major proportion of polymers of such molecular weight as to be soluble in methanol-water mixtures of specific gravity 0.84 or alternatively at least 0.93. The separated gel may be heated to liquefy it and/or sprayed in particle form into a zone where the solvent and non-solvent are removed therefrom, e.g. by evaporation.
Patent GB-846853-A (GB)
Title: Improvements in or relating to rotary-scythe lawn mowers
IPC: A01D34/63
Filed: 1959-05-12
Abstract: 846,853. Rotary-scythe mowers. NAVEAU, M. May 12, 1959 [May 27, 1958], No. 16179/59. Class 6(3). An electric rotary-scythe mower has a rotor comprising an upwardly-dished disc 18 mounted on the lower end of the vertical shaft 9 of the motor 7, the blades 17 being detachably and pivotally secured to the periphery of the disc. The blades are carried by pins 19 secured to a flexible diametral strip 21, the pins entering into holes 25 in the disc to retain the blades. The mower-frame 2 is carried on a pair of skids 3 having a slot and bolt connection 6 with the frame to permit adjustment of cutting-height, a parallel pair of auxiliary skids 23, Fig. 3, being detachably mountable on the frame between the main skids for cutting edges. The adjustable handle 1 is hollow, to house the cable 26, and carries a switch 26.
Patent GB-183330-A (GB)
Title: Improvements in or relating to transmitting apparatus for signalling through water
IPC: G10K1/068
Filed: 1921-06-13
Abstract: 183,330. Thornton, W. M. June 13, 1921. Subaqueous audible signals.- In a transmitter for sub-aqueous signalling, a pneumaticallyactuated hammer under electromagnetic control is mounted to deliver a succession of blows on a plate having one side immersed in water. The blows are received, by an anvil A<1> connected to the plate A, from the piston G<2> of the hammer G, which is such that the piston is given a rapid reciprocatory movement when air under pressure is supplied, the distance between the anvil and hammer being adjusted by means of a nut H. On energization of an electromagnet J, the armature N slides rearwardly a valve tube L which normally closes a delivery opening L<5>, allowing air to be supplied to the hammer through apertures N' in the armature. Exhaust air escapes through a passage G<4>.
Patent GB-726273-A (GB)
Title: A circuit arrangement for controlling a tuning indicator tube in combined amplitude modulation-frequency modulation broadcast receivers
IPC: H03J3/14
Filed: 1953-06-12
Abstract: 726,273. Radio receiving circuits. STANDARD TELEPHONES & CABLES, Ltd. June 12, 1953 [July 18, 1952], No. 16277/53. Class 40(5). In a frequency-modulation receiver, the grid of a tuning-indicator tube 1 is connected, over a filter 7, 8, to the grid circuit of the limiter 2. A switch 9 is provided so that when amplitude modulation is being received instead, the grid of the tube 1 is connected to a suitable point in the A.M. circuit.
Patent GB-1594423-A (GB)
Title: Reinforcement member for structural joints
IPC: B64C1/00
Filed: 1978-04-25
Abstract: COMPOSITE LOAD COUPLER FOR REINFORCING COMPOSITE STRUCTURAL JOINTS A composite reinforcement member is provided for reinforcing composite structural joints.  The reinforcement member is optimally a laminate of fiber composite sheets of uniform size and shape which are adhesively bonded together.  By virtue of the shape of the laminate and arrangement of the sheets, the fibers substantially distribute a tension load to minimize peel forces on the structural joint,
Patent GB-255838-A (GB)
Title: Improvements in or relating to automatic apparatus for the distribution of articles of all kinds
IPC: G07F17/02
Filed: 1926-06-29
Abstract: 255,838. Cortes, M. L. July 25, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Delivery of articles stored in separate compartments.-A coin-freed apparatus for the delivery of opera glasses or other articles for use in places of amusement comprises separate compartments for the articles, each compartment being provided with a hinged lid or door 9, Fig. 3, which is fastened by a catch 10 thereon being engaged by the bent end 12 of a lever 13. The locking levers 13 are contained in a separate central compartment and are controlled by a single push-piece 21 after the insertion of a coin in a slot 33 corresponding to the compartment to be opened, the mechanism after operating being so arranged as to close that particular slot. Each article compartment has a double bottom with a spring for pressing the article against the lid so that this is automatically opened as soon as the catch is freed. Coin action, mechanical-connection.-A coin 25 rests between a fixed central stop 20 and a boss 16 on the end of the lever 13. When the piece 21 is pushed in, its head 22 acting through the coin moves the lever to release the clutch 10. Fraud, preventing. - To prevent operation by the insertion of an instrument, each boss 16 is protected by a projection 34 and also each coin shoot 19 may be curved. Coin-slit closing-devices.-The bent end 12 of each lever 13 in freeing its catch moves under and obstructs its coin slot. It is retained in that position bv a pivoted spring-controlled catch 27, Fig. 6, engaging behind a tooth 26. The catches 27 are connected together at their upper ends by a spring 29 and are released to permit the levers 13 to return to locking position under the action of a spring 18, by a push-piece 30 adapted to bear against shoulders 31 on the catches. Money-boxes or receivers. - The coins afterfreeing the apparatus drop to a hinged receptacle 23 fitted with a spring catch 24.
Patent GB-297154-A (GB)
Title: Improvements in apparatus for securing belt lacings or fastenings
IPC: F16G3/00
Filed: 1927-06-20
Abstract: 297,154. Marks, E. C. R., (Flexible Steel Lacing Co.). June 20, 1927. Ironing - machines with aprons and conveying-members. - Relates to apparatus for attaching spiked fastenings to the ends of aprons in ironing- machines. The fastenings 23 are preferably of the type formed as separate hooks or interconnected in series, as shown, the fastenings in the two belt ends being connected by a hinge-pin. A case-hardened steel anvil bar D is carried in a bed B supported by a frame A and supports-.the ends of the fastenings, which are carried in triangular recesses in a biass holder C, in which they are retained by a pin 124. A striker-block E overlies the fastenings and the end of the belt or apron 36 inserted therein and is pivoted on a pin 31 in a carrier F which is slidable along the bed B so as to position the block E over all parts of the width of the belt to enable the fastenings to be secured therein by hammer blows upon the rounded surface 28 of the block. The holder C and anvil D are built up from short sections to the required length to suit the belt width and are secured upon the bed by screws 19, x, respectively, the holder sections being aligned by a rod 25. The inner edges 27, 35 of the bar D and block E are bevelled to avoid injury to the belt. The leading and trailing edges 37 of the block E are bevelled to enable the block to slide readily over the fastenings.
Patent GB-776447-A (GB)
Title: A new or improved display device
Inventor: ACHTEN HELMUT VON
IPC: G09F5/04
Filed: 1954-06-03
Abstract: 776,447. Attaching articles to cards. OLDHAM ELASTIC MANUFACTURING CO., Ltd. June 2,1955 [June'3, 1954], No. 16393/54. Class 94(1). Hanks 15 of tape or elastic are mounted on a display card 10 by passing strips of card 13 through their tubular wrappers 14 and inserting the ends of the strips in pairs of slots 11.
Patent GB-1358938-A (GB)
Title: Photographic apparatus with liwuid spreading elements
IPC: G03C8/42
Filed: 1972-04-10
Abstract: 1358938 Photographic apparatus POLAROID CORP 10 April 1972 [14 April 1971] 16443/72 Heading G2X Photographic apparatus (as described, a self-processing camera) comprises a pair of sheet contacting surfaces 34, 68 defining a pressure generating gap which exerts a force on a pair of sheets (17, 29) Fig.7b, (not shown) of a film unit when such sheets are progressively moved between the surfaces to spread a layer of processing liquid 25 between the sheets; a platform 36 which supports at least a portion of one sheet as it approaches the gap so as to control the thickness of the liquid layer as the sheets pass between the surfaces 34, 68; and wrap around collars 88, 90 which urge progressive sections of such superposed sheets against the platform 36 as they are advanced towards the gap. The surfaces 34, 68 form part of spreader elements 26, 28 respectively, which elements are pivotally connected together and can be opened fully for cleaning and/or inspection Fig.3b (not shown). When the elements 26, 28 are in their closed positions, the surfaces 34, 68 and spacers 92, 94 determine a minimum spacing between the surfaces 34, 68. However, there is a resilient connection between the elements 26, 28 to allow for variations in sheet thickness. The collars 88, 90 engage edge portions of the sheets to prevent escape of processing liquid. The platform 36 is disposed at an angle of between 84 degrees and 86 degrees to the plane of the pressuregenerating gap, a ramp 37 for guiding the sheets on to the platform 36 being disposed at an angle of 1 degree with respect to the platform.
Patent GB-1125353-A (GB)
Title: A ball retriever
Inventor: STANWORTH STEPHEN
IPC: A63B47/02
Filed: 1967-04-11
Abstract: 1,125,353. Ball retriever. STANDEL Ltd. 14 April, 1967, No. 16522/67. Heading A6D. A ball retriever comprises a plastics tube having an open inlet end, the tube being deformed at the inlet end so that it must be distended to allow a ball to pass into or out of the tube, such distending taking place within the elastic limit of the deformed end of the tube. Preferably the tube has an open outlet at the opposite end to the inlet, the tube being deformed at or near the outlet end so that it must be distended by pressure on opposite sides to allow a ball to pass out of the tube at that end, such distention taking place within the elastic limit of the deformed outlet end of the tube. The deformation at the inlet end should be capable of supporting the weight of the balls in the tube when the tube is vertical. The tube may be made of polypropylene which is transparent or translucent.
Patent GB-114399-A (GB)
Title: Improved Crutches for Cripples and Invalids.
Inventor: SHARP JOHN
IPC: A61H3/00
Filed: 1917-11-10
Abstract: 114,399. Sharp, J. Nov. 10, 1917, Folding and collapsible seats combined with crutches. -A folding seat is combined with a crutch. The folding sides h are pivoted at c to the lower part a. Their upper parts are joined by the seat f under which are pads. Pivoted clips g, h keep the parts in alinement when the crutch is in use. The seat part may be removably attached to the lower part by bolts and fly nuts.
Patent GB-542406-A (GB)
Title: Improvements in and relating to electric terminals and couplings
IPC: H02G3/06
Filed: 1940-11-15
Abstract: 542,406. Mounting terminals. TELEPHONE MANUFACTURING CO., Ltd., PADDLE, L. H., and COOK, J. S. N. Nov. 15, 1940, No. 16540. [Class 38 (i)] An assembly of terminals 5 on an insulating strip 4 is provided with a metallic surround 6 which can be secured to the casing 8 of an electrical apparatus by soldering, riveting &c. or by sliding into a guideway or other inter-engaging formation. The strip may be moulded on to the terminal shanks and the inner edge of the surround. Alternatively the strip may be built up of front and rear portions riveted together by the terminal shanks and clamping the surround between them. The surround may form the lid of the casing 8. Leads from the enclosed apparatus pass through the hollow terminals and are soldered at the outer end, sealing the aperture. An annular rim 10 encloses a recess to receive wax, lacquer, or other sealing compound around the stem of the terminals and a similar seal may be 'formed at the joint between the strip 4 and the surround 6.
Patent GB-292123-A (GB)
IPC: A01B13/00
Filed: 1928-06-07
Abstract: 292,123. Giesberger, H. June 14, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Implements with adjustable tool frames; reversing at headlands; adjusting parts travelling and propelling gear; seats.-In a plough for making furrows or trenches in sugar-cane plantations &c., the beam or frame carrying the working tools is adapted to be turned about a vertical axis so that it may be reversed at the ends of its traverse without turning the whole implement. The main frame a consists of an iron girder resting on end skids b. The tool frame c<1> is carried by a vertical pivot pin d rotatable in a roller or other bearing. The frame is adjustable vertically in the head of the pin, and its inclination is adjustable by means of a hand-wheel f and a screw f<1>. The operator sits on one or other of two seats g and steers by turning uprights carrying blades b<1> beneath the skids b, arms projecting from the uprights being coupled together and operated by means of a screw g<2> and hand-wheels g<1>. The implement may be pulled backwards and forwards by two truck tractors at opposite ends of the field, the hauling cables h passing round pulleys i, i<1>.
Patent GB-389437-A (GB)
Title: Improvements in and relating to buckle attaching devices
IPC: B64D17/32
Filed: 1931-06-08
Abstract: 389,437. Parachute fastenings. LABRIQUE, G., 24, Rue Bosquet, Brussels. June 8, 1931, No. 16653. Convention date, May 1. Addition to 384,284. Void [Published under Sect. 91 of the Acts]. [Class 44.] Fastenings for parachutes comprise a cover member 2 fastened to a base 3, and provided with openings 2a, 2b for the insertion of clasps for the seat attachment and for the parachute respectively. A washer 7 fitting in the interior of the cover 2 on a level with the openings 2a is provided with a spring 24 mounted on a stud 7d and adapted to urge a tongue 25 passing through openings 2k in the cover 2 in the direction shown by the arrows, Fig. 6. A disc 9, which is urged towards the washer 7 by the action of a spring 10, is provided with pins 9a adapted to engage holes 7a in the washer. Inclined faces 9h on the pins 9a facilitate insertion of the clasps for the seat attachment in the holes 2a against the action of the spring 10, until a hole provided in each clasp is retained by the corresponding pin. The clasps for the seat attachment are released by depressing a button 11, the end 11a of which contacts with the disc 9. The clasps for the parachute are held in a similar manner by pins 12a secured to a disc 12, which is urged towards a washer 13 by the spring 10. The parachute clasps are unlocked by means of a rotatable member 15 provided with a pin 16 engaging a cam 17 integral with the cover 2. By rotating the member 15, the disc 12 is moved upwards through the medium of screws 17a engaging a groove 12d formed on a pivot 12f secured to the disc 12. Accidental rotation of the member 15 is prevented by means of a stop 18 carried by a flexible strip 19. The button 11 fits in a circular aperture in the member 15, and is provided with a flange 11d securing the retention therein. Projections 9t mounted on the disc 9 pass through a groove 25b and a slot 25d in the tongue 25, and also through holes 7f in the washer 7. When the pin 16 is in the position for locking the parachute clasps, rotation of the member 15 is prevented by means of the projections 9f, until by depressing the button 11 to unlock the seat attachment these projections are also depressed out of the way of the pin 16. When the disc 9 is in the position in which the seat attachment clasps are unlocked, it is maintained in this position by the fact that the tongue 25, the edge of the central aperture 25f of which previously abutted against the face 11b of the flange 11d, is displaced by the spring 24 until the edge of the aperture 25f abuts against the body of the button 11. The disc 9 is then prevented from coming back into its locking position until the tongue 25 is pressed back by hand from the outside of the cover 2.
Patent GB-514806-A (GB)
Title: Improvements in and relating to devices for hanging clothes
IPC: A47G25/24
Filed: 1938-06-03
Abstract: 514,806. Garment hangers. SIEBER, J. June 3, 1938, No. 16701. [Class 52 (v)] A garment hanger, consisting of a yoke 1 and a trouser supporting bar 2, is provided with two spaced loops 3, 5 by which the hanger is suspended from a supporting bar at an angle, thereto. The hanger may be constructed of a single length of wire bent as shown or stamped from sheet metal, fibre &c. or moulded from plastic material. The hanger may include a basket as described in Specification 415,653.
Patent GB-1210983-A (GB)
Title: A winding reel assembly for a fishing rod
Inventor: KUROKI FUYOH
IPC: A01K89/012
Filed: 1969-03-31
Abstract: 1,210,983. Fishing reel. F. KUROKI 31 March, 1969, No. 16754/69. Heading A1A. [Also in Division B8] A fishing reel comprises a spinner 4 mounted on a hollow shaft 28 which can be driven by an electric motor 22 through gears 26 and 27 via a free wheel mechanism which consists of a motor member 25 fitting concentrically inside gear 26, and leaving wedge shaped cutouts containing rotors 50 held by springs 51 nested therein. Rotation of the member 25 causes transmission of power to the gear 26, but on the over-run, motion of the gear 26 is not back transmitted to member 25. The shaft 28 can also be driven by a handle 2 acting through gears 30 and 31, the former containing a similar free wheel device to that described. When one power source is driving, the power is directed to the spinner only and not to the other source. The fishing line is fed on to a reel 5 by the spinner 4, the reel being moved back and forth for even feeding by the reciprocating motion of its shaft 35 (mounted inside shaft 28) caused by the cam mechanism 33 and 34 mounted on gear 32 cooperating with gear 31.
Patent GB-236927-A (GB)
Title: Rotor wheel blading for steam or gas turbines
IPC: F01D5/14
Filed: 1925-06-30
Abstract: 236,927. Akt.-Ges. der Maschinenfabriken Escher, Wyss, et Cie. July 8,1924, [Convention date]. Blades. - The circumferential boundary walls of the rotor blade passages in steam or gas turbines are so formed that the particles of the working-fluid flowing through such a passage are caused to describe an absolute path which lies in a plane. Losses due to compression, eddies, and friction are thereby lessened. The plane E referred to, containing the absolute path a of a particle of steam flowing through a rotor passage, may be parallel to the turbine axis X - - X, Fig. 1, or inclined thereto, as shown in Fig. 3, which illustrates a modification wherein the path m of a steam particle in the stator guide passage lies also in a plane Em, and wherein the plane E contains the straight line t denoting the direction in which this particle issues from the guide passage. The curve r denotes the relative path in a rotor passage. A geometrical method of plotting out the requisite form of the boundary walls of the rotor passages is described in connection with each modification, Fig. 4, being an axial longi. tudinal section of a rotor blade showing the boundary walls F<3>, D<3> as determined for the case shown in Fig. 1.
Patent GB-1209078-A (GB)
Title: Improvements in or relating to thermionic dispenser cathodes
IPC: H01J1/24
Filed: 1968-04-09
Abstract: 1,209,078. Thermionic cathode constructions. SIEMENS A.G. 9 April, 1968 [10 April, 1967], No. 16923/68. Heading H1D. A dispenser cathode comprises a porous emissive-substance carrier plate 3 which closes off the end of the supply chamber 1 provided with a heater 4 housed in a cylindrical ceramic oxide sheath 5 which is attached to the supply chamber 1 and which is surrounded by a spaced metal foil supporting cylinder 6 also attached to the supply chamber 1. The heater may be of the bifilar spiral type or a single filament spiral having one end connected directly to the supply chamber, and in the latter case an additional metal cylinder connected to the supply chamber may be provided between the ceramic sheath 5 and cylinder 6 to act as a supply lead for the heater. The ceramic sheath 5 may be of aluminium oxide or beryllium oxide and the supporting cylinder 6 of tantalum. The dispenser cathode may be incorporated in a travelling wave tube or disc-seal tube, and may be operated with a D.C. heater current source or with A.C. heater current source exhibiting a D.C. bias with respect to the cathode.
Patent GB-425943-A (GB)
Title: Improvements in automatic closure devices for collapsible tubes
IPC: B65D47/20
Filed: 1934-06-07
Abstract: 425,943. Closures for collapsable tubes. GRUBER, L., 12, Poststrasse, Zurich, Switzerland. June 7, 1934, Nos. 16942 and 16943. Convention dates, July 17, 1933 and Sept. 16, 1933. [Class 125 (iii)] An automatic closure device for a collapsable tube comprises a closure member 8 which surrounds a stationary pin 3 and which is held in the closed position by a spring 13. The pin 3 and member 8 are stepped and a tubular part 9 of the member 8 extends from the step over a prolongation 4 of the pin. The spring 13 is arranged between the closure member and the cap. The pin 3 may be conical in shape. In a modification the pin 3 and member 8 are made as short as possible, and the spring is arranged between the lower part of the member 8 and the cap.
Patent GB-1223156-A (GB)
Title: Electric connection device and method of making it
IPC: H01R12/51
Filed: 1968-04-09
Abstract: 1,223,156. Soldering. SPERRY RAND CORP. 9 April, 1968 [10 April, 1967], No. 16949/68. Heading B3R. [Also in Divisions H1 and H2] Circuit elements beneath a base 40, Fig. 7, are connected to an array of pins which carries a stack of printed circuit laminates 67-69 having some holes which fit the pins and have printed interconnections, other pins passing through over-sized holes. Each interconnection may be formed on one side only of a laminate or party on both, Fig. 6, with through-connections. Insulating sheets 7 separate the laminates. Preferably, each pin is connected to one laminate only. A solder ring is dropped over the pin on to the board through the over-sized holes of other boards and the stack heated.