baber/WOPTO huggingface dataset:
Patent GB-948190-A (GB)
Title: Improvements in or relating to electrostrictive vibrators and transducers
IPC: H03B5/40
Filed: 1961-05-12
Abstract: 948,190. Electromechanical filters. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. May 12, 1961 [May 14, 1960], No. 17421/61. Heading H3U. [Also in Division H1] An electromechanical filter comprises electrostrictive transducers in the form of hollow cylinders, torsional vibration of the cylinders being produced as a result of asymmetry of a radial signal field. The asymmetrical field may be produced, e.g. by means of spiral internal or external electrodes, by a corrugated spiral formation of a surface of the transducer 24, Fig. 6, or by provision of oblique end surfaces on the transducer 37, Fig. 7. In the filter of Fig. 6 transducers 24, 25 and resonators 26, 27, 28 are axially aligned and are coupled by torsional rods 22. In a modification, the rods 22 are replaced by groups of parallel wires welded to the inner and outer surfaces of the transducers and resonators. Where the transducers 37, 38 and resonators 31-34 are arranged in parallel formation (Fig. 7), coupling wires 35, 36 operating in a longitudinal mode are used. The filter is supported by kinked wires 56, 57 attached to the vibrating elements at nodal points. The wires protrude and are held at spaced points between the upper and lower halves of a plastic casing 58.
Patent GB-491681-A (GB)
Title: Improvements in or relating to vermin traps
IPC: A01M23/20
Filed: 1937-06-23
Abstract: 491,681. Animal traps. ADCOCK, R. June 23, 1937, No. 17457. [Class 5 (i)] Relates to traps of the kind described in Specification 219,246, [Class 5 (i)]. When a rat or other animal walks on a bait platform 5 pivoted to a wooden base 1 having low sides 6 and ends 7, a loop 8 on or carried by the platform is withdrawn from an arm 16 of an L- shaped member of which the other arm passes through an eye 17. A flexible member 15 secured to the L-shaped member and to a heavy wooden weight 10 is then released, and the weight falls on the rat. The flexible member passes through an opening in a cross member 3 supported by uprights 2 secured to the base. The weight is provided with an extension 13 passing through the aperture in the crosspiece. In a modification, the sides of the base are extended to form supports for the top of an open-ended box-like structure. A wire guard, spaced bars, or sliding panels may be used at the open ends of the device to avoid danger to dogs, fowls, &c.
Patent GB-1373575-A (GB)
Title: Method of forming electrodes and conductors and articles made thereby
IPC: B32B7/00
Filed: 1972-04-14
Abstract: 1373575 Capacitors; printed circuits NL INDUSTRIES Inc 14 April 1972 [16 April 1971] 17463/72 Headings H1M and H1R An intermediate in the manufacture of capacitors or multilayer circuit assemblies comprises a densely sintered ceramic body having at least one region of porous ceramic material extending to an outer face whereby the body may be impregnated with conductive, or potentially conductive, material to form the capacitor electrodes or circuit conductors. As shown in Fig. 5, the body comprises alternately arranged non- porous strata 41 and porous strata 43, the latter extending alternately to opposite end faces whereby after impregnation electrical contact to electrodes of like polarity may be made (Fig. 1, not shown). The ceramic of the two regions may be substantially the same or different, the required porosity being achieved, e.g. in the case of a barium titanate ceramic by using a decomposable compound such as barium carbonate or oxalate. Alternatively coarser barium titanate or alumina may be used for the porous regions, preferably together with carbon black, the combustion of which during firing enhances the porosity. In a method of making a plurality of capacitors (Fig. 3, not shown), on to a sheet comprising a binder and ceramic composition which will form a dense ceramic on firing is printed a pattern of separate layers of a ceramic composition and binder which will form a porous ceramic on firing. Such coated sheets are stacked with the porous layer precursors partially overlapping and alternate such layers in register, the assembly is heated to drive off binder, fired to consolidate it and cut into units wherein the porous regions extend to an outside surface. To provide conductive material within the porous regions, these may be impregnated with silver nitrate solution or molten silver nitrate which is decomposed or reduced to silver using, e.g., hydrogen, hydrazine or carbon, the latter having been previously introduced into the pores as an epoxy resin. Alternatively a low melting point alloy or conductive ceramic may be used, or readily decomposable compounds such as nickel carbonyl, or the pores may be impregnated with a liquid electrolyte, e.g. nitric acid, which is then sealed therein. In the manufacture of a multilayer circuit (Fig. 7) strips 60 of the eventual porous ceramic composition are deposited on layers B and C which will be dense on firing and also in holes 62 to provide electrical connection between layers. After firing, the porous strips are impregnated with conductive material as above.
Patent GB-1302658-A (GB)
IPC: H01P5/18
Filed: 1971-05-27
Abstract: 1302658 Directional couplers RCA CORPORATION 27 May 1971 [30 July 1970] 17492/71 Heading H1W A strip-line directional coupler comprises a dielectric substrate having a dielectric constant greater than five and means for equalizing the phase velocities of the odd and even modes of propagation where substrates of dielectric constant in excess of about five are used, disparity between even and odd modes arises since part of the field of the odd mode lies outside the dielectric. In the example shown, a portion 38 of the ground conductor 32 immediately opposite the coupling one 36 is removed. This causes pertubation of transverse currents associated with the odd mode and creates an inductive reactance which tends to decrease the phase velocity of this mode. The coupler is otherwise of known construction and comprises coupled line conductors 33, 35 upon a dielectric substrate 31 of Al 2 O 3 .
Patent GB-398617-A (GB)
Title: Improvements in or relating to sliver balling machines
IPC: D01G27/04
Filed: 1932-06-21
Abstract: 398,617. Sliver-balling apparatus. FRASER, G., FRASER, N., and FRASER, J., Westburn Foundry, Arbroath, Angus. June 21, 1932, No. 17511. [Class 120 (i).] A sliver-balling machine comprises separable arbor sections 1, Fig. 2, on which the ball is wound, pivoted arms 2 carrying the arbor sections 1 and jointly movable about a common axis parallel with the axes of the arbor sections, and non-rotatable cheek plates 6 embraced by the arms 2, Fig. 1, and which are relatively movable, the plates 6 serving to confine the sliver ball during its formation and releasing the ball on retraction of the arbor sections 1. The arbor sections 1 are extended through the arms 2 and carry friction pulleys 3 which engage friction driving pulleys 4 at the commencement of winding. The cheek plates may be mounted one on each arm, or, alternatively, one may be hinged to the machine framing at 7, Fig. 2, and be movable towards the other plate by movement of the adjacent arm, a contact 9 being adapted to engage therewith. Horns 11 on the skid plate 10 are provided to hold the completed ball steady while the arbor sections 1 are being retracted. The arms 2 are swung apart for ejection of the ball 8 by mechanism 12 as described in Specification 323,416, [Class 120 (i), Spinning, Preparation &c. for]. Specification 377,590 also is referred to.
Patent GB-297881-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60P3/36
Filed: 1927-07-01
Abstract: 297,881. Billing, N. Pemberton-. July 1, 1927. Caravans; bodies; drawer &c. fittings.- Motor vehicles such as caravans are constructed with the engine enclosed within the body and the engine housing constitutes part of the equipment of the vehicle. The vehicle is divided up into compartments for various purposes. As shown the body of the caravan has flat vertical sides with top and ends of stream-line form. The interior comprises the engine housing forming a table in the main living room 1. Rear compartments are shown fitted with sleeping berths and intermediate compartments serve as a lavatory and as a kitchen respectively. Water tanks 21, seats 8, and storage compartments 19 are provided.
Patent GB-860759-A (GB)
Title: Improvements in pressure-responsive electric switches
IPC: H01H35/26
Filed: 1957-06-03
Abstract: 860,759. Fluid actuation of switches; switches held set and freed mechanically. BLACK AUTOMATIC CONTROLS Ltd., and BLACK, A. June 3, 1958 [June 3, 1957], 17555/57. Class 38 (5). A switch responding to a decrease in pressure comprises a diaphragm 4 connected by a pin 9 to an arm 10 of a bell-crank lever 11, whose other arm 13 engages arm 14 of a second lever 15 to operate buttons 17 of microswitches 2 . . . 2d. An externally-adjustable compression spring 20 and thimble 19 maintains contact between the arms 13, 14, removes backlash at pivots 12, 18 and can preset the pressure needed to operate the switches. The lever 15 is held in its operated position by a spring- loaded detent 23 engaging arm 16 and having a handle 23a for manual resetting. Members 13, 14 and 17 may be modified to operate for an increase of pressure, and sequential operation of the microswitches may be obtained by varying the clearance between the buttons 17 and the arm 14.
Patent GB-313174-A (GB)
Title: Improvements in or relating to stands for lamps
IPC: F21V21/06
Filed: 1929-06-07
Abstract: 313,174. Mayer, C. June 9, 1928, [Convention date]. Stands and brackets.-A support for an electric lamp &c. 4 consists of a rod 3 projecting from a sphere 1, or its equivalent, the arrangement being such that the device will remain stationary with the rod at any inclination. In one construction a weight inside a hollow sphere can be moved to adjust the position of the centre of gravity. The sphere may be replaced by a regular polyhedron as shown in Fig. 6 or by a series of radial rods 1<a> one of which carries a weight 2 as shown in Fig. 8. The sphere &c. may be foldable. Various forms of wall brackets and standards to receive the sphere &c. are described.
Patent GB-1464090-A (GB)
Title: Motor vehicle safety belt energy dissipator
IPC: B60R22/28
Filed: 1975-04-28
Abstract: 1464090 Safety belt energy absorbing anchorage FIAT SpA 28 April 1975 [4 June 1974] 17638/75 Heading A3V A motor vehicle safety belt energy dissipator comprises a belt 17 wound on, and anchored at one end to, a flanged reel 13; two bushes 9, 10 with external equal helical pitched opposite handed screw threads engaged in corresponding internally threaded bores 11, 12 in the reel 13 such that unwinding of the belt causes rotation of the reel and axial sliding of the bushes 9, 10 without rotation along a central shaft 7' carried by a support 1', means opposing the sliding of the bushes to dissipate energy. As shown, torsion spring 19 in housing 20 can rotate shaft 7' relative to support 1' in the belt protraction direction. Ratchets 21 are fixed relative to shaft 7'. Wheel 23 is rotatable relative to shaft 7'. A screw 27 passes through slot 26 and is screwed into hole 27a to limit the rotation of wheel 23 relative to support 1'. Ends 30 of pawl 29 are pivotably mounted in slots 33. A spring pushes lip 32 into contact with the belt and when a certain length of belt is wound on the reel, lips 31 contact neither ratchets 21 or wheel 23. When pulled by the occupant when strapping himself in the seat, one lip 31 engages tooth 25 allowing reel 13, shaft 7', bushes 9, 10 and ratchets 21 to rotate. Any slight belt slackening after unwinding causes slight rewinding by spring 19 and disengagement of the one lip 31 from tooth 25. Both lips 31 then engage and lock ratchets 21 thus fixing ratchets 21 and shaft 7' relative to support 1'. On vehicle impact, belt 17 is pulled, bushes 9, 10 rotate relative to reel 13 in their internally threaded bores 11, 12 and slide without rotation along shaft 7', energy being dissipated by the plastic deformation of brass tube 18 located between the bushes. In the embodiment of Figs. 1 to 4 (not shown) shaft 7 is always fixed relative to support 1. Instead of tube 18, a high viscosity liquid may be forced through calibrated passages.
Patent GB-540832-A (GB)
Title: Composite materials and method of making same
IPC: C08L97/00
Filed: 1940-12-14
Abstract: 540,832. Plastic compositions. BAKELITE BUILDING PRODUCTS CO., Inc. April 29, 1940, No. 7682. Convention date, May 1, 1939. [Class 70] Re-granulated cork ,which is obtained as a by-product in the baking of corkboard is used as a fungus-growth and fire-inhibiting agent in making compressed composite material containing finely pulped cellulosic material. Rubber latex, cement, asbestos fibre, bentonite, wood flour, cork bark dust, paraffin wax and alum may also be present. The cellulosic fibre, which may be news stock, is pulped in hot aqueous suspension, cooled, mixed with regranulated cork, filtered and compressed and dried to a lightweight product. Specifications 527,857, 528,308, [Group VIII], 540,831 and 543,803, [Group III], are referred to.
Patent GB-612997-A (GB)
Title: Improvements in or relating to transit boxes for rockets
IPC: F41F3/042
Filed: 1946-06-13
Abstract: 612,997. Packing and launching rockets. SMITH, M., FORREST, T. P., OWEN, A. L., ROBINSON, P. J. M., and MITCHELL, S. S. C. June 13, 1946, No. 17731. [Classes 9 (i) and 92 (ii)] A rocket 7 is packed for transit in a package comprising a plurality of cross-braced longitudinal members 1 which also serve as rails when the rocket is'launched, the package being fitted with movable end plates for limiting the longitudinal movements of the rocket in transit and with legs 24 for supporting the package in the firing position. The rear ends of the members 1 shown are braced by plates 5, and at one side there is provided a spade 6 which, with an end plate 8 against which the gases impinge, serves to steady the apparatus. Plate 8 co-operates with a movable plate near the front of the package to steady the rocket in transit, and against the front plate normally presses ground spades 18 which in turn are urged towards the plate by a fuze box 17 on a front lid 14. When required for use, the lid 14 is opened as also is the plate 8 to the positions shown, and the spades 18 are removed and fitted to the pair of supporting legs 24 which are opened out about pivot pins 34 from positions against the paekage to the position shown. The legs may be telescopic.
Patent GB-741115-A (GB)
Title: Method of and apparatus for forming tubular fittings and the like
Inventor: CARTWRIGHT EUGENE MINOR
IPC: B21D9/12
Filed: 1953-06-26
Abstract: 741,115. Making pipe bends. CHASE BRASS & COPPER CO., Inc. June 26, 1953, No. 17780/53. Classes 83 (2) and 83 (4). Stamping; angular bending.-A method of forming a tube bend comprises the steps of placing a cup of ductile metal with a working fit, closed end inwards, in one limb of the cavity of a die shaped to correspond to the shape of the fitting to be formed, deforming the closed end of the cup, whilst supporting it against internal collapse into a bend portion of the die cavity whilst positively obstructing displacement of the cup end beyond the bend portion until the closed end of the cup has assumed the exact contour of the whole bend, and then removing the obstruction to permit further displacement of the closed end of the cup beyond the bend. A copper cup 90 is placed in a vertical limb 14a of a die cavity 14 of a split die 12 composed of complementary sections 12a, 12b. The cup is filled with water and a punch 74 is moved down so that its pilot end 98 first enters as an accurate fit into the open end of the cup, then an annular shoulder 102 on the punch engages the rim of the cup wall. Continued descent of the punch deforms the bottom of the cup against the wall of the bend of the die cavity and against the end face of a plunger 64, Fig. 4. Further descent of the punch 74 causes the cup to flow into the limb 14c of the die cavity forcing the plunger 64 back against compressed air acting on a piston 69 carrying the plunger. The punch 74 and plunger 64 are then automatically withdrawn and the die opened, the half die 12b being moved away from the other half die 12a by toggle means 34 actuated by a handle 40. The flat end of the formed elbow fitting is then cut away. In an alternative arrangement a cup 108, Fig. 14, may be first deformed in a die 130, and then further deformed into the complete fitting in the die 12, in the presence or absence of the plunger 64. A bend with one limb of smaller cross-section than the other may be formed.
Patent GB-500335-A (GB)
Title: An improved holder for fuze lighters
IPC: F23Q1/00
Filed: 1938-06-15
Abstract: 500,335. Fuze lighters. ROLFES, Ltd., and SCHNEIDER, E. June 15, 1938, No. 17861. [Class 75 (iii)] A holder for a fuze lighter is provided at one end with a retaining member 1 in the form of a burner comprising a pair of convergent lips 7, against which the lighter a bears, and a diametral slot 2 of a width slightly less than the diameter of the lighter to provide side openings through which ash may fall. The burner is formed with an integral flange 3 to prevent the lips 7 from being damaged. The body of the holder 11 is formed from sheet metal bent into tubular form, and is provided with a slot 12 along which slides a pin 21 secured to a plunger 20 by which the lighter is fed forward. The burner 1 is secured to the body 11 by means of a hinge pin 16 and a split pin 17, the latter of which may be sealed or. otherwise made secure to prevent unauthorized removal of the burner. A looped cord or the like 18 is attached to the bottom of the holder for convenience in hanging up the lighter or for carrying it. Fig. 5 shows a locking device alternative to the split pin 17 shown in Fig. 1, in which tongues 22, 23, stamped out of flanges 14 of the holder 11 engage in openings in the bifurcated lug 9 of the burner. The burner may be unlocked by passing the pin points of a pair of pliers through the openings in the lug 9 to press the tongues 22, 23 together.
Patent GB-1337639-A (GB)
Title: Track section for vehicles
IPC: E01B3/38
Filed: 1971-05-28
Abstract: 1337639 Track sections AKUSTIKBYRAN AB 28 May 1971 [28 May 1970] 17893/71 Heading E1G A track section for vehicles comprises a continuous U-section concrete bottom plate 3 an upper concrete plate 8 which is continuous or comprises a series of rigidly interconnected blocks, a layer of damping resilient material 10 therebetween and side beams also surrounded with damping material 11 and 12 which together with the arms 7 prevent lateral movement of the upper plate relative to the bottom plate. The bottom plate is separated from the bedrock by isolators 4 and held in place by stops 5 with resilient facings 6. Instead of conventional rails 13 the plate 8 may carry sliding paths or air cushion rails. The damping layer may be laminated, corrugated or indented.
Patent GB-476923-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F27/38
Filed: 1937-06-28
Abstract: 476,923. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. June 28, 1937, No. 17964. Convention date, June 27, 1936. Addition to 470,145. [Class 38 (ii)] In a five-limbed threephase transformer in which the core is designed so that the fifth and seventh harmonic components of the magneto - motive - force necessary to produce a sinusoidal flux cancel out as described with reference to Fig. 6 of the parent Specification, means are provided for suppressing third harmonic flux in the main limbs. The means may comprise a delta-connected auxiliary winding 8a, 8b, 8c, Fig. 1, on the main limbs ; a pair of windings 9a, 9b, Fig. 2, on the outer limbs connected so that the induced voltages therein are additive as regards the third harmonic and opposed as regards the fundamental; or a modification of the existing yoke windings in which the outer sections 7a, 7d, Fig. 3, are connected in parallel with each other and form a closed delta with the inner sections 7b, 7c.
Patent GB-706383-A (GB)
Title: Improvements in grinding apparatus for fibrous, granular and pulverulent materials
IPC: D21D1/30
Filed: 1952-07-16
Abstract: 706,383 Disc mills. ASPLUND, A. J. A. July 16,1952 [July 21, 1951], No. 17969/52. Class 59 A disc-mill comprises a pulleydriven shaft 36 mounted in bearings 38, 40 to support a rotatable grinding disc 12 and adjust the grinding gap and the pressure on the material being ground between the disc 12 and a stationary disc 10, the bearings being located at one side of the discs 10, 12 between supports 22, 16 of which the latter carries the disc 12 adjustably, and the supports being connected at their base and top. The disc 10 is secured by bolts 18 to the support 16 and adjusted by further bolts 20. A casing 56 divided vertically into two parts to facilitate assembly, covers the milling zone into which material may be fed by a screw conveyer 54. The shaft 36 is moved axially by a plunger 70, Fig. 3, operated by fluid-pressure and secured to a slidable housing 48 supporting the bearing 40 and a thrust bearing 50. During a milling operation, fluid is fed to the left of the plunger along conduits 100, 106 and through a control valve 104 by a motor-driven pump 96, fluid from the opposite side of the plunger being returned through conduits 108, 112, 114 and the valve to a reservoir 92. An extension 80 of the plunger is preferably an easier fit in the bore 82 of a cylinder 72 than is the plunger in the main part of the cylinder, so that when the valve is reset by its handle 122 to feed fluid into the conduit 108 and part the grinding discs, some fluid will leak past the extension 80 into a recess 130 and back to the reservoir down a conduit 132. Movement of the disc 12 towards the disc 10 is limited by an adjustable stop screw 88 and in the cylinder 72 in the way of the extension 80. A spring-loaded arm 136 follows the extension 80 and is coupled to a gauge 144 to indicate the gap between the grinding discs. A pressure gauge 128 is located in the conduit 100 and a relief valve 126 in a branch conduit 124. A safety device, such as a diaphragm 147, is provided in the cylinder-head 78 and is such that it will burst upon a rapid increase in pressure due to the introduction of a foreign body between the discs 10, 12 and allow the fluid to escape into a conduit 148 where it operates an electric contact 160 to interrupt the feeding operation and also effects a resetting of the valve 104 by means of a conduit 150 to separate the grinding discs. In order that the valve 104 may be operated immediately fracture of the diaphragm occurs, the conduit 148 is kept full of oil from a conduit 152 provided with a cut-off valve 154 and a non-return valve 156. Specification 706,384 is referred to.
Patent GB-1304966-A (GB)
IPC: G03C1/047
Filed: 1971-05-28
Abstract: 1304966 Modified gelatine E I DU PONT DE NEMOURS & CO 28 May 1971 [23 June 1970] 18029/71 Heading C3H [Also in Division G2] Modified gelatine providing enhanced covering power in gelatino-silver halide emulsions is prepared by (a) mixing gelatine with an aqueous hydrolysing solution of 0À5 to 0À7 N hydrochloric acid or 0À5 to 1À1 N sodium hydroxide, (b) heating the mixture at a temperature between 50‹ and 70‹ C. for 1 to 2 hours, and (c) admixing the hydrolysed gelatine at a pH of 10À0 to 13À5 with at least one polybasic acid anhydride in an amount of 5 to 20 grams of the latter per 100 grams of hydrolysed gelatine and heating the admixture at 40‹ to 55‹ C. for 1 to 4 hours. Diglycolic, maleic, phthalic and succinic anhydrides are preferred, though many others are particularly mentioned. The modified gelatine is incorporated in the photographic gelatino-silver halide emulsion layer or in a layer contiguous with the emulsion layer in an amount of 5 to 60 grains per 1À5 gram atoms of silver. In the procedure of the examples, tests are made of the covering power and haze of gelatino-silver halide emulsions and antiabrasive solutions, each including the modified gelatine, coated upon polyethylene terephthalate film.