baber/WOPTO huggingface dataset:
Patent GB-814509-A (GB)
Title: Improvements in or relating to spark gap devices
IPC: H01J17/00
Filed: 1957-05-31
Abstract: 814,509. Protective arrangements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 31, 1957 [June 8, 1956], No. 17341/57. Class 38 (4). A spark gap device comprises electrode members 5 spaced apart to form a spark gap 10, means-such as permanent magnets 7-being provided to produce a constant magnetic field in the spark gap, the device also including means 9 for dividing an initial discharge in the gap 10 into a series of small discharges. When the device is used as a lightning arrester one electrode 5 is connected to a line to be pro - tected whilst the other electrode 5 is connected to earth by way of a non-linear resistor 11. Thus a voltage surge on the line causes an arc to form across the gap 10 which arc, under the influence of the field from the permanent magnets 7, is moved radially outwards into the barriers 9 where it is divided into a number of smaller arcs which are extinguished at a current zero. The permanent magnets 7 are preferably constructed from barium ferrite and are protected from erosion by discs 8 of polytetrafluorethylene.
Patent GB-423084-A (GB)
Title: Process for recovering metallic selenium
IPC: C01B19/02
Filed: 1934-06-12
Abstract: Elemental selenium is obtained from the anode sludge produced during the electrolytic preparation of copper by heating the sludge with sodium carbonate or other alkaline compound to form a selenite or selenate; the mass is extracted with water and the extract evaporated to dryness, the residue being heated with carbon to form a selenide which is dissolved in water and treated with air or oxygen to deposit selenium.  Specification 134,536, [Class 90], is referred to.
Patent GB-1174215-A (GB)
Title: Counterbalancing Spacer for Film Magazine and Hand Held Motion Picture Camera
IPC: G03B19/18
Filed: 1968-04-10
Abstract: 1,174,215. Cine cameras; magazines. PANAVISION Inc. April 10, 1968 [April 17, 1967], No.17391/68. Heading G2E. A counterbalanced hand-held cine camera and magazine assembly comprises an elongated hollow spacer 13 which is detachably secured to the opening 20 in the camera housing 17 which normally receives the projection 21 on the magazine 11, the opposite end of the spacer having an opening 27 into which the said projector 21 fits. The assembly is adjustably mounted on a support which fits over the operator's shoulder. Driven sprockets 32, 33 in the magazine, and 38, 42 in the spacer feed the film into and from the camera, the sprockets being driven a gear in the camera which engages gears on the shafts of sprockets 38,42. An endless belt in the spacer transmits drive to the sprockets 32,33. For loading purposes, a side cover is removed from spacer 13 by releasing latches 61, the film loop extending from magazine 11 is laid over rollers 35, 36, 37, 43, 44 and sprockets 38, 42 after opening the door 40 of the spacer. The door 40 is then closed, the film engaged with the camera mechanism, and the spacer secured to camera opening 20 by a dovetail 29 and wedge 24 connection.
Patent GB-424257-A (GB)
Title: Improvements in piles and sheet piling walls
IPC: E02D5/48
Filed: 1933-06-19
Abstract: 424,257. Pile structures. THORNTON, A. A., 7, Essex Street, Strand, London.- (Vereinigte Stahlwerke Akt.- Ges. ; 67, Breitestrasse, D³sseldorf, Germany) June 19, 1933, No. 17425. Addition to 419,139. [Class 68 (ii)] In a modification of the invention described in the parent Specification, the thickened part of the pile projects upwards beyond the foundation or main supporting stratum. As shown in the Figure, the upper part c of this part may be thicker than the lower part, and may be enclosed in an iron shell b. The concrete part c may have reinforcements d.
Patent GB-183340-A (GB)
Title: Improvements in or relating to means for retaining pens, pencils, and the like in the pockets of garments
IPC: B43K25/02
Filed: 1921-06-27
Abstract: 183,340. Livsey, W. June 27, 1921. Pockets, retaining pens and pencils in.-A pocket clip has its spring arm d formed with a cupped disc e and outwardly projecting tongues f for engagement with a longitudinal keyhole slot b, b<1> in the pen-nib cap or pencil casing a. The clip is attached by sliding the tongues f down the undercut portion b' of the slot until the cup e engages the enlargement b of the slot. The tongues and cup may be stamped out of the upper portion of the spring arm.
Patent GB-671194-A (GB)
Title: Improvements in or relating to electric frequency modulated oscillators
Inventor: HEATON-ARMSTRONG LOUIS JOHN
IPC: H03C3/09
Filed: 1950-07-12
Abstract: 671,194. Frequency mediation; valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd. July 12, 1950, No. 17454/50. Classes 40 (v) and 40 (vi). The feed-back loop of a frequencymodulated valve oscillator includes in series a piezo-electric crystal and a device for shifting the phase of the feed-back voltage in accordance with the signal voltage, the arrangement being such that with zero signal voltage the oscillator frequency is equal to the frequency of series resonance of the crystal. In Fig. 1, the anode of the oscillator valve 1 is connected through a crystal 2 and condenser 3 to a phaseshifting or modulating device 5. This comprises two valves 23, 24 with their grids fed from the condenser 3 through a phase-advancing capacity 33 and a phase-retarding coil 34. Their cathodes are connected by a resistor 29 with a biasing resistor 32 tapped on the resistor 29, so that the valves can be balanced to give equal mutual conductance. The grids are fed in push-pull from the signal source 10 and the anodes are connected in parallel to the grid of the oscillator valve 1. As the phase-shift at the modulator 5 varies in the rhythm of the signal, the oscillation frequency adjusts itself until the phaseangle of the crystal 2 is equal and opposite to that produced by the modulator. The effect of shunting capacities across the crystal is tuned out by a coil 13 so that the crystal operates at series resonance. The anode circuit of the valve 1 is broadly tuned to the crystal frequency, and the modulator anodes are fed through a tuned coil 21 and resistance 25. Output is taken from the tuned anode circuit 19 of an amplifier 17 whose grid is connected to the oscillator anode through condensers 18, 3 and the crystal 2. In Fig. 2, feedback to the valve 1 is effected through an amplifying-valve 39 which has a tuned anode circuit 41 shunted by a thermionic reactance 43. As the value of this reactance is varied by the signal voltage applied at terminals 44, 45, the phase of the anode voltage is varied, and the oscillation frequency changes until the crystal 2 gives a corresponding phase-shift in the opposite direction. In a further modifiedtion, Fig. 3 (not shown), a tuned transformer is inserted between the anode lead from the valve 1 of Fig. 2 and the grid lead to the valve 39. The crystal 2 and the thermionic reactance are connected in series between the transformer primary coil and earth. The invention is particularly applicable to frequency-shift telegraph systems.
Patent GB-111713-A (GB)
Title: Improvements in Travelling Wheels for Agricultural Motors, Gun Carriages and the like.
Inventor: NIX WILLIAM HILL
IPC: B60B15/18
Filed: 1916-12-07
Abstract: 111,713. Nix, W. R. Dec. 7, 1916. Portable-track wheels.-The tread consists of shoes S pivoted on rods R which are guided through the wheel rim, and are fitted with rollers A bearing on pivoted rocking levers E, F. The arrangement is such that three shoes bear simultaneouslv on the ground, the upward movement of one shoe acting to depress the adjacent shoes.
Patent GB-953167-A (GB)
Title: Improvements in and relating to ultra-sonic transmitters and receivers
Inventor: BRADFIELD GEOFFREY
IPC: G01N29/28
Filed: 1959-05-22
Abstract: 953,167. Ultrasonic wave couplings. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 23, 1960 [May 22, 1959], No. 17582/59. Heading H4J. The space between the coupling blocks 11, 12 carrying the piezo-electric transmitter 16 and receiver 17 of an ultrasonic testing probe is filled with material 18 which, in the region adjacent the coupling block surface, has a characteristic impedance higher than the characteristio impedance of the blocks. The high characteristic impedance of the filling avoids a change of phase of # on reflection at the side face. The coupling blocks are of polymethyl methacrylate resin and may be joined by an integral web 13. The filling is a polyester resin or an epoxy resin loaded with heavy particles of tungsten powder or chopped tungsten wire. The filling may include fibrous material to increase absorption. A thin layer of tungsten may be cemented to each face of the filling so that the coupling blocks are in direct contact with tungsten. The piezo-electric elements 16, 18 may comprise stacks of crystals operable over a range of frequencies as described in Specification 841,512. The piezo-electric elements 16, 18 carry damping backings 22 and are screened by an electrostatic shield 23. Layers 21 of the filling material 18 may be applied to the outside faces of the blocks. It is desirable that the thickness of the filling 18 between the blocks should be greater than 4/3# and the thickness of the web 13 should be less than or equal to 2/3# where # is the longest wavelength used.
Patent GB-889876-A (GB)
Title: A new or improved device for assisting the coupling of trailer vehicles to the towing vehicle
IPC: B60D1/36
Filed: 1958-06-02
Abstract: 889,876. Aligning tractors and trailers for couplings; lookout reflectors for vehicles. WEIDNER, O. June 2, 1958 [June 3, 1957; May 7, 1958], No. 17595/58. Classes 103(2) and 108(1). Means for facilitating the coupling of a tractor vehicle to a trailer comprises an aiming mark on the trailer which may be visually aligned by the driver with a sighting means fixed to his cab, so that he may back the vehicle along a path which will bring it into coupling engagement with the trailer. In Fig. 9, for example, the tractor must be manoeuvred until a sight tube or marked rod 38 is aligned with an aiming mark 42 attached to a bar 40 fixedly or adjustably secured to the coupling or draw bar arrangement on the trailer. The tractor is then backed along the line of sight 43 until coupling takes place. Figs. 1 and 2 (not shown) illustrate other forms of adjustable aiming strips mounted on the trailer draw bar. Other sights 46 and 47 are provided on the vehicle median line for forward and rearward coupling respectively, a vertically adjustable aiming mark being provided on the trailer when the sight 47 is to be used. In a modification a plain rear view mirror may be used in conjunction with the tractor sight. In a further embodiment an eyepiece in the tractor cab may be swung out to a limiting position and viewed through by the driver when backing, his line of sight being reflected by a rear view mirror, Fig. 7, having a flat 28 etched or painted with a sighting mark 25, which mark must be aligned with a mirror image 27 of the aiming mark on the trailer to give the line of backing. In Fig. 8 the sighting means comprises a driving mirror with a pointer 31 slidable within a guide rail 33 through an angle B and pivotally adjustable over an angle α. The aiming strip and the sighting means may be luminous.
Patent GB-594391-A (GB)
Title: Improvements in and relating to suspenders for stockings and socks
IPC: A41F11/16
Filed: 1945-07-10
Abstract: 594,391. Garters and hose suspenders. WITT, H: F., and HALL, R. D. July 10, 1945, No. 17615. [Class 141] A suspending means for stockings or socks comprises an adjustable leg band 5 having a plurality of depending ribbons which are attached to or formed integrally with the stocking or sock 3. The band 5, which is preferably tubular and may incorporate elastic threads, is provided with slots 7 in the outer ply and a buckle 6. The ribbons, 4 which may be elastic, are secured to the front of the stocking and are threaded through the slots and tied or otherwise secured at the back. Another ribbon, secured to the band 5 at the back, is provided with an adjustment-buckle 10. Instead of two ribbons threaded through the slots 7, a single ribbon, attached at both ends to the front of the stocking, may be employed.
Patent GB-219694-A (GB)
Title: Improvements in automatic weft replenishing mechanisms for power looms
IPC: D03D45/20
Filed: 1924-07-23
Abstract: 219,694. Bertuletti, G. July 23, 1924. Shuttles, changing weft carriers in automatically.-When weft-replenishment is to occur, a link 12 controlled by the weft fork mechanism or the weft feeler mechanism moves a part 10 into the path of a cam 2 on the bottom shaft, whereby a lever 8 is depressed against spring action and a block 13 thereon turns a bell crank lever 23 connected through a part 22 furnished with a spring-loaded piston to a lever 20<1>, 20. This lever is connected to a supply carriage 19 whereby a spool is carried from the magazine into position beneath a transferring hammer 25 adjustably carried by a link 14 having a pin and slot connection with the lever 8. The cam 2 has a part 3 of increasing eccentricity preferably followed by a projection 4 whereby a sudden downward movement may be given to the link 14 and hammer 25 to force a fresh spool into the shuttle.
Patent GB-1310923-A (GB)
Title: Immunochemical test slides and cards
IPC: G01N33/543
Filed: 1970-04-14
Abstract: 1310923 Immunological test card ORGANON LABORATORIES Ltd 14 April 1970 [22 April 1969] 17727/70 Heading B1X [Also in Division B8] A test slide or card for use in immunological tests comprises a substantially plane sheet 10 of substrate material having at least one test surface which is insoluble in, impermeable to, none-absorbent to and wettable by water, the test surface carrying at least one circumscribed test area, for example that bounded by coloured circle 12 and in the test area at least two dried deposits of immunochemical test reagents 13, 14 obtained by drying the aqueous phases of the latter after deposition, providing, in dried form, respectively a predetermined amount of an antigen absorbed on a particulate carrier, and a predetermined amount of an antiserum or antibody. The substrate material may be cardboard coated with plasticized nitrocellulose, optionally containing carbon black to provide a dark background, and may be packed in a protective container (see Division B8). Other substrate materials mentioned are glass, glazed porcelain, surfaceroughened phenol-formaldehyde resin or polymethylmethacrylate. Reagents exemplified are polystyrene latex particles sensitized with HCG, and rabbit antiserum to HCG. The reagent deposits may be side by side or superimposed, optionally with a layer of sucrose or mannitol between the deposits, and may include BSA, lactalbumin hydrolysate or gum arabic as adjuvant.
Patent GB-424414-A (GB)
Title: Improvements in or relating to apparatus for treating gases with liquids
IPC: B01D47/06
Filed: 1933-06-21
Abstract: 424,414. Treating gases with liquids. LEARMONTH, W., Norton Hall, The Green, Norton-on-Tees, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. June 21, 1933, No. 17739. [Class 55 (ii)] Apparatus for treating gases with liquids such as scrubbers, absorption, de-aeration or distillation columns, comprises a tower of which the main body of packing consists of superposed tiers of thin strips of hard material, e.g. wood, metal, or synthetic resin, vertically arranged in contact with and transversely to those of adjacent tiers, liquid being delivered in film formation to the top tier. The packing elements are so dimensioned and arranged that the free space in the packing is not less than 70 per cent of the space occupied by the guidework, and the distance between individual elements which should not be more than treble their depth, does not exceed 2¢in. In the form shown, a scrubber has a lower packing 5 of deep strips, and a main packing 7 of metal laths 1 x 1/16in., spaced ¥in. apart with rope 20 or other soft material preventing byepassing of gas between the packing and the tower walls. Liquor is supplied by a tangential pipe 12 over a perforated plate 13 above a distributing gridwork 14 of square section elements, the liquor then falling through a free space 15 on inclined elements 15<a> each feeding a top element of the main packing 7. Baffles 3 assist the distribution of incoming gas over the whole area of the tower and corrugated plates 9 at the gas outlet 8 remove entrained liquor. Doors 17, 18, facilitate separate removal of the two banks of packing. Instead of separate inclined elements 15<a> bent-over parts of the top tier of packing may form oblique slats which obviate vertical passages through the packing. A number of towers may be arranged in two batteries with common gas inlet and outlet branches. A modified tower comprises a single body of packing irrigated by a bank of vertical plates each supplied with liquor by short pipes depending from tanks disposed on both sides of a gas outlet duct.
Patent GB-592227-A (GB)
Title: Improvements in or relating to open mesh flooring and like open mesh-work structures
IPC: E04C2/42
Filed: 1944-09-18
Abstract: 592,227. Expanded metal work. BARR, R. Sept. 18, 1944, No. 17820. [Class 45] [Also in Group X] An open-mesh floor comprises strips of meshwork of the form shown in Fig. 5, each disposed between and rigidly connected to two adjacent members of a set of spaced parallel rectilinear load-carrying members 5a. The mesh-work, shown in Fig. 5, is formed by expanding the rectangular strip, shown in Fig. 1, which is provided with slits 1 or slots extending transversely from the edges towards the centre and alternating with parallel slits 2 extending from the centre towards the edges. The six-sided figures formed in the mesh lie in parallel planes inclined to the horizontal, and the higher parts of the mesh, which may be blunted to facilitate walking thereon, are all flush with each other. The inclinations of certain parts of the mesh provide runways or trough formations parallel to the longitudinal edges which facilitate the passage of the wheels of bogies or barrows. The mesh may be of any desired width to present two or more lines of openings, Fig. 7, or may be built up from two or more narrow strips slit as required and welded together side by side. In another construction, the slits or the inner parts of the slits are inclined across the strip. Metal or non-metallic strips may be used, examples of suitable metals or materials being alloys of iron and synthetic resin products, while rubber, laminated wood, plywood, aluminium, and aluminium alloy are also mentioned. Instead of being expanded from a flat strip, the mesh-work may be cast.
Patent GB-1026408-A (GB)
Title: Piperidine derivatives and their manufacture and use
IPC: A61K31/445
Filed: 1963-05-06
Abstract: The invention comprises compounds of formula <FORM:1026408/C2/1> wherein R is a hydrocarbon group having up to 10 carbon atoms and one or more double bonds, and being optionally substituted by one or more of halogen atoms, or alkyl or alkoxy groups having up to 3 carbon atoms, R1 is an alkyl group having up to 4 carbon atoms, and R2 is a hydroxyl group or an alkyl group having up to 4 carbon atoms, and physiologically tolerable acid addition salts thereof, and their preparation by reacting an amine of formula <FORM:1026408/C2/2> with an acid R-COOH or a halide, anhydride, ester or azide thereof, and if desired converting a resultant salt into a free base or a free base into a salt.  The compounds of the invention have anti-tussive and sedative properties and may be used in pharmaceutical preparations in combination with a pharmaceutically acceptable carrier, e.g. in the form of tablets, capsules, solutions, suspensions, dragees, or suppositories.
Patent GB-1357720-A (GB)
Title: Self-tapping screw
IPC: F16B25/00
Filed: 1973-04-13
Abstract: 1357720 Self-tapping screws ALTENLOH BRINCK & CO 13 April 1973 17901/73 Heading B3N A self-tapping screw has a head 51 and a single or multi-start thread 6 extending over at least a portion of its shank 5, the thread having a symmetrical triangular profile including an angle substantially equal to 40 degrees at the outer edge and being provided with a sinuous outer edge, and the axis of symmetry of the profile being inclined toward the head through an angle X of at least 5 degrees. The core diameter of the shank is substantially equal to 0�6 times the nominal diameter of the screw. The screw may be hardened and provided with an abrasion resistant, friction reducing coating.
Patent GB-750014-A (GB)
Title: Improvements in printers' registering devices
Inventor: LUMBY CHARLES LESLIE
IPC: G03F9/00
Filed: 1953-06-29
Abstract: 750,014. Printing-surfaces. PORTERPRINT, Ltd. Sept. 28, 1954 [June 29, 1953], No. 17950/53. Class 100 (2). A printers' registering device comprises a locating frame 1 to receive a mounting board or forme 4, a movable register frame 5 having a transparent panel for positioning over the board or forme and carrying or forming a transparent key proof, and at least one opening 14 in the frame 1 for the admission of a manuallycontrolled locating element or elements 15 capable of enabling an operator to adjust plates into correct register beneath the key-proof. The frame 5 is adapted to run on guide-bars 7 by means of rollers 6, 8. When a plate 13 has been correctly positioned by tongs 15 a transverse bar 16 above the opening 14 is depressed by means of an eccentrically-mounted roller 18 having operating handles 20 so that the tongs 15 and plate 13 are locked in position. The frame 5 is then slid back and the plate 13 fixed in position on the board or frame 5. The frame 5 may be kept in position by magnets 9 and the bar 16 and the upper surface of the frame on which the tongs 15 rest may be serrated.
Patent GB-829732-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: F16H1/16
Filed: 1958-06-05
Abstract: 829,732. Dynamo-electric machines. GENERAL MOTORS CORPORATION. June 5, 1958 [June 6, 1957; June 24, 1957], No. 17987/58. Class 35. A dynamo-electric machine, e.g. a small D.C. motor, has a sheet-metal frame with one or more overlapping or abutting joins secured together and to a polepiece by at least one projection integral with the polepiece. Fig. 4 shows a motor having a single solid polepiece 21 with a circular lug 23 which rivets together the overlapping edges of the single sheet frame 10. The frame is further secured by indents in one overlapping edge which locate in apertures in the other. An additional plate 19 is welded opposite the single pole to improve flux distribution. Alternatively, the pole may be laminated, in which case axial slots are provided in the frame to accommodate a projection on each lamination which is riveted over, or there may be two such poles, the second one securing the plate 19. In another arrangement the frame may be buttjointed, either on one side only, secuted by one laminated pole, or on two sides, held by two poles, as shown in Fig. 14. In this case each pole has two riveting projections 191 and 192. Rectangular brush holders, each having a slot for the emergence of the brush pigtail, are attached to a plate which, in the single-pole machine, is secured by twisted tangs to a bracket 29 clamped on polepiece 21 by the field coil 26 and to a projection on plate 19 by a known metal fastener. In two-pole machines the bracket 29 is duplicated. The ends of the frame have locating notches in which projections on end-plates are registered; one end-plate is welded to the frame, the other, that at the commutator end, is secured by L-shaped studs and nuts. Each end-plate may support a selfaligning bearing bush, or one may have a plain bearing and a housing for a worm drive. Methods of resisting axial thrust, of the " ball and block " type are described, including one with an adjustable block, Fig. 2 (not shown).