baber/WOPTO huggingface dataset:
Patent GB-873695-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B13/20
Filed: 1958-03-10
Abstract: 873,695. Photographic cameras. AGFA A. G. March 10, 1958 [March 20, 1957], No. 7686/58. Class 98(1) A spring on the hinge pin 5 of protective flap 3 for a view-finder and range-finder or photo-electric cell or a combination of these, retains the flap 3 in the open position and urges it axially to ensure snap engagement of catch 8 with recess 9 when the flap is pressed down. The flap is slid along the hinge pin against the spring to disengage the catch.
Patent GB-409494-A (GB)
Title: Improvements relating to the production of fire extinguishing foam
IPC: B01F5/04
Filed: 1933-03-15
Abstract: 409,494. Making foam. MERRYWEATHER & SONS, Ltd., OSBORNE, J. H., Greenwich Road, and MILLER, L. C., 8, St. Austell Road, Lewisham, both in London. March 15, 1933, No. 7784. [Class 47 (ii).] Means for making foam by the mechanical mixing of water under pressure, a foaming solution, and the exhaust gases from an internalcombustion engine, comprises a water inlet A, Fig. 1, a Venturi tube B, a throat C, and an outlet D. The inlet A is connected to a hydrant or fire-engine pump, and is provided with a valve O. The exhaust gases are supplied to the throat C by an inlet E connected to the engine cylinder by a pipe including a non-return valve. The Venturi is so designed that the water pressure in the throat is less than the gas pressure in the engine cylinder. Foaming solution is supplied to the throat C by an inlet F which is connected to a pump G Fig. 3, adapted to draw solution from a reservoir J and force it to the inlet F in variable quantity. An adjustable relief valve is provided in the exhaust gas supply-pipe. The foam may pass from the outlet D to a mixing chamber.
Patent GB-198816-A (GB)
Title: Improvements in head lamps for motor vehicles and the like
IPC: F21V17/00
Filed: 1922-03-17
Abstract: 198,816. Sweeney, E. T. March 17, 1922. No Patent granted (Sealing fee not paid). Lighting, systems of.-A lamp 1 containing a reflector 3 and bulb 4 is provided with a bracket 2 permanently secured thereto, and by which it is secured by bolts &c. to the main head-light 6 at an angle of about 40‹ to the vertical. The leads 5 from the lamp 1 are connected with the leads from the lamp 6 to a single adapter, and each may be separately or simultaneously controlled from the dashboard &c. of the vehicle.
Patent GB-330568-A (GB)
Title: Improvements in or relating to anti-dazzle devices for automobile headlamps
IPC: F21V5/00
Filed: 1929-03-11
Abstract: 330,568. Sharpe, A. T. March 11, 1929. Lantern fronts.-For anti-dazzle and fog-penetrating purposes both surfaces of the front glass A of a vehicle or other lamp are rendered translucent except for a series of separate substantially circular areas arranged in one or more rings, the clear areas B of the outer surface being of larger diameter than, and concentric with, the corresponding clear areas B<1> of the inner surface. The translucent surfaces are preferably coloured, for example yellow or amber, and the rings of clear areas preferably occupy the area about midway between the centre and circumference of the glass. The surfaces of the glass may be made translucent as by sand blasting, or they may be furnished with a coloured film or veneer, portions of which are subsequently removed as by abrasion to leave the clear areas.
Patent GB-253241-A (GB)
Title: Improved method of and means for shelling or husking nuts, and the like
IPC: A23N5/00
Filed: 1925-03-24
Abstract: 253,241. Wokes, C. March 24, 1925. Husking.-In a method of shelling or husking nuts and the like, the nuts are subjected to the action of steam, air, or gas under pressure in a closed vessel, and the pressure suddenly released so that the steam &c. which has penetrated the shells will burst or fracture the same. Suitable apparatus consists of a closed vessel A mounted on trunnions B, B<1> in bearings C, C<1> of supports D, D' and provided with a charging and discharging aperture a having a detachable cover a<1>. Steam &c. is supplied by a valve-controlled pipe F, which fits into a stuffing-box E at the outer end of the trunnion B, and passes by passages d, d<1> in the trunnion and a pipe L to a box M at the bottom of the vessel A, whence it passes through a perforated plate d<3> into the vessel. The hollow trunnion B<1> is covered at its 'inner end by a perforated plate d<2> and at its outer end carries a cylindrical extension G by which it is closed and supported in a bearing H. When the vessel is overturned, a port g in the extension G registers with the outlet J connected to a pipe J<1>, which may be fitted with a cock or valve j. The member G may be dispensed with, and the trunnion B<1> made sufficiently long to pass into the bearing H. A collar N secured to the trunnion B<1> is provided with arms n for use in overturning the vessel. Stirrers or the like may be provided in the vessel to agitate the nuts during the treatment. When treating Brazil and other nuts, the steam &c. is supplied at such pressure as to loosen the kernels within their shells, which are afterwards broken by any suit. able means and the kernels removed complete. Means may be provided for creating a vacuum in the container and for breaking the vacuum instead of or in addition to the means for supplying steam &c.
Patent GB-251742-A (GB)
Title: Improvements in and relating to steering gears for motor cars
IPC: B62D7/16
Filed: 1925-03-24
Abstract: 251,742. Martin, P., and Daimler Co., Ltd. March 24, 1925. Steering-gear; non-reactive steering mechanism.-One part a of the steering-gear casing is bolted or detachably secured to the rear face of the dashboard j, and the other part b of the casing is secured to the part a. The steering worm c and the worm-wheel are carried by the parts a, b respectively. The rocker arm e controls the stub axles by means of a vertical link f and a bell-crank lever g, both situated in front of the dashboard.
Patent GB-381092-A (GB)
Title: Process for removing poisonous constituents from tobacco smoke
IPC: A24D3/16
Filed: 1932-03-17
Abstract: Deleterious substances are removed by passing the smoke over macroporous silica gel weighing from ,4 to ,6 kg. per litre. Iron salts may be associated.  It may be used in globular or cartridge form in pipe stems or cigarette mouthpiece or may be a constituent of cigarette paper.
Patent GB-640566-A (GB)
Title: Improvements in or relating to a method for alkylating polystyrene
IPC: C08F8/02
Filed: 1947-03-24
Abstract: Polystyrene having a molecular weight above 3000 is alkylated with an alkyl halide, an olefin or a dimer, trimer or tetramer of propylene or butylene, at a temperature of at least 20 DEG  C. in the presence of aluminium chloride and an organic nitro compound which is soluble in the mixture.  Nitro compounds specified are nitroethane, nitromethane, nitropropane, nitrobenzene, nitrotoluene and nitronaphthalene.  The polystyrene may be dissolved in o-dichlorobenzene, ethylene dichloride, carbon disulphide, carbon tetrachloride, dichloroethyl ether, monochlorobenzene, chloroform, chloronitromethane as well as some of the above nitrocompounds.  Amyl chloride, tertiary butyl chloride, chlorinated paraffin wax, chlorinated kerosene and butylene are specified as alkylating agents, as well as the dimers, trimers and tetramers above.  By heating a solution of polystyrene of molecular weight above 60,000 with aluminium chloride the molecular weight is lowered and the alkylation is then effected to give an alkylated product soluble in mineral oil. Specifications 503,755, 509,823 and 640,567 are referred to.ALSO:To a mineral oil, in particular a Mid-Continent oil of 20 DEG  F pour-point, is added an alkylated polystyrene prepared by treating polystyrene with an alkyl halide, an olefin or a dimer, trimer or tetramer of propylene or butylene at a temperature of at least 20 DEG C., in the presence of aluminium chloride and an organic nitro compound (see Group IV (a)).  The amount of alkylated polymer is specified as being 0.1 to 12 per cent, preferably 1 per cent. Specifications 503,755, 509,823, [both in Group IV], and 640,567 are referred to.
Patent GB-1048108-A (GB)
Title: Structural members and cabinets utilizing such members
IPC: F16B5/00
Filed: 1964-02-26
Abstract: 1,048,108. Cabinets. BARTACO INDUSTRIES Ltd. Feb. 26, 1964 [Jan. 17, 1964], No. 7988/64. Heading A4B. [Also in Division E1] A structural member, for use in a cabinet framework, comprises a flat-bottomed, U-section main channel 10 having legs 11, 12 of unequal length, the longer leg 11 having at its inner face a panel receiving channel 13 opening away from the main channel base 10 and the shorter leg 12 having at its outer face a panel receiving channel 14 opening towards the main channel base 10, and both channels 13, 14 extending sustantially parallel to their associated legs 11, 12. The main channel is preferably formed from a single metal strip by folding. The panel receiving channels 13, 14 may be of uniform width (Fig. 1) or alternatively, (Fig. 2, not shown) may progressively decrease in width from their closed ends whereby a panel may be resiliently gripped between the channel walls. As shown in Figs. 5 and 6, a furnace casing includes a rectangular top frame 16, comprising channel members 22, 23, a rectangular bottom frame 17, comprising members 29, 31, corner uprights 18-21, front and rear wall panels 34, 35 received within the longer leg channels of the uprights 18-21 and of the rectangular frames 16, 17, a bottom wall 33 welded to the bottom frame 17, and a partition 39 supported in vertical channels 40, 41 and transverse channels 26, 27 and 42. The open-topped cabinet supports one or more trunk members 28, e.g. for hot air discharge and cold air delivery, which are received in the shorter leg channels of the top frame 16. Side access panels 36, 37 having inturned side edges which engage in the shorter leg channels of the uprights 18-21 are removably received at their upper and lower edges within the longer leg channels of the frame members 22, 23, 29 and 31.
Patent GB-104103-A (GB)
Title: Improvements in Fencing.
Inventor: JOHNSON WALTER CLAUDE
IPC: E04H17/10
Filed: 1916-06-06
Abstract: 104,103. Johnson, W. C. June 6, 1916. Vertical-bar fencing; slat and lath fabrics.-In fencing of the kind composed of wooden uprights connected by flexible horizontal members, the horizontals consist of notched metal strips e, Fig. 9, connected to the uprights by cross-shaped metal pieces a, Figs. 1 and 5, of which the arms b are adapted to embrace the upright, and the arms c to be bent round the notched part of the strips e, as shown in Fig. 4. The arms b are pierced for nailing purposes, and are arranged to overlap or placed side by side, so that two nails are used for securing purposes, as shown in Fig. 9. In a modification, the ends of the members b are hooked and a wire securing-means employed. The material may te transported in the completed condition or arranged for assembling on the spot. It is secured to intermediate posts in the usual manner.
Patent GB-751394-A (GB)
Title: Improvements in or relating to electric arc-welding apparatus
IPC: B23K9/10
Filed: 1954-03-19
Abstract: 751,394. Supply systems for welding arcs. IMPERIAL CHEMICAL INDUSTRIES, Ltd., and THORLEY, T. March 21, 1955 [March 19, 1954], No. 8063/54. Drawings to Specification. Class 38 (4). ' In an arc welding system of the kind described in Specification 687,666, wherein a gas-shielded arc burns between the work and the end of a bare wire electrode which is continuously fed at high speed towards the work through a welding gun and wherein an adjustable relay responsive to arc voltage is arranged to open a contactor in the welding circuit when the arc voltage exceeds a predetermined value, thus preventing the arc burning back to the gun, the relay is now provided with auxiliary contacts which, when the relay responds, complete a holding circuit for itself from the line side of the welding contactor, so that the last remains open and prevents re-striking of the arc until the relay has been positively reset by the manual opening of a push-button switch in the holding circuit. The relay may also operate a warning device upon response. The adjustment of the relay may be by variable resistance in series with its coil, by thyratron control, or by variable spring loading of its armature.
Patent GB-374933-A (GB)
Title: Improvements in strips of staples
IPC: F16B15/08
Filed: 1931-03-17
Abstract: 374,933. Staple strips. WYRSTAPES, Inc., 200, Hudson Street, New York, U.S.A. -(Assignees of Obstfeld, L. ; 200, Hudson Street, New York, U.S.A.) March 17, 1931, No. 8172. Convention date, March 18, 1930. [Class 89 (ii).] A staple strip has the centre planes of the staple obliquely disposed to the centre line of the strip. The staples 11 are held together by adhesive, which is inserted in the notches 33, 34 formed by adjacent leg portions of adjacent staples.
Patent GB-641982-A (GB)
Title: Improvements in and relating to electric pulse signalling systems
IPC: H03K9/04
Filed: 1947-03-26
Abstract: 641,982. Pulse modulation; multiplex pulse signalling. GENERAL ELECTRIC CO., Ltd., and LEVY, M. M. March 26, 1947, No. 8261. [Class 40 (v)] In a receiver for time-modulated pulses, interference from noise (having a period long compared with the duration of the pulses) is reduced or eliminated by deriving further pulses from both the leading and trailing edges of the signal pulses, and combining these further pulses so that their noise components are in anti-phase. Signal pulses, Fig. 2 (a), are either raised or lowered as a whole by the noise, the results of noise being shown throughout the Figure in dotted lines. Pulses D1, D2 at (b) representing the voltages at C1, C2, are developed, e.g. by double limiting about level C and differentiating the resultant. From pulses D1, D2 are produced pulses (c) and (d) which are width-modulated about a common datum line E. These pulses are subtracted as at (e), the noise components N<SP>1</SP> 1  and N  2 <SP>1</SP> tend to cancel out, and the signal is extracted by integration. Instead of the pulses (c) and (d), pulses width-modulated with respect to a datum F may be produced as at (f) and (g) by applying the pulses D1, D2 of wave (b) to the grid of V1, Fig. 3, and, inverted, to the grid of V1<SP>1</SP>. Both valves are normally biassed to cut-off, but pulses Dl and D2 respectively charge condensers K, K1, to a level P, P1, a level which is maintained since R, K and R1, K1 have long time constants, until discharged by valves V2, V<SP>1</SP>2, which conduct at point F on control pulses applied to their control grids. The output width modulated pulses are added as at (h), Fig. 2, and integrated, or they may first be demodulated and then added. If the pulse waveform is not symmetrical then the phase displacements C1, N1 and C2, N2 will not be equal and therefore the amplitude of waveforms (f) and (g) are made suitably different. When pairs of pulses are push-pull timemodulated, each of the two pulses may be dealt with separately and the combined outputs subtracted, or one circuit may deal with the leading edges of both pulses, and a second circuit with the trailing edges, the outputs being subtracted one from the other. For optimum results, the transmitter should be provided with automatic gain control so that the pulse spacing is always only sufficient for the signal amplitude existing. In an alternative embodiment, the signal pulses are converted to pairs of amplitude-modulated pulses before being combined as above. In a multi-channel system, cross-talk between adjacent channels may be reduced by these means, and further reduced by combining with the pulses of one channel, in suitable sense and phase relation, a small fraction of the signal from the interfering channel. Reference has been directed by the Comptroller to Specification 644,118.
Patent GB-548677-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C33/12
Filed: 1941-07-01
Abstract: 548,677. Alloys. STEVENS, A. H. (National Lead Co.). July 1, 1941, No. 8277. [Class 82 (i)] [Also in Group XXXIV] A bearing has an oil-lubricated lining protected by a thin coating of tin, antimony, or mercury, or their alloys. A lead alloy is cast on to a brass or bronze backing or a steel shell and the coating is applied by electrical or chemical deposition or by fusion to a depth of between 2 and 5 thousandths of an inch. The lead alloy may comprise calcium 0.1-2 per cent., tin 0.5-10 per cent.; mercury 0.1-1 per cent. and aluminium 0.02 to 0.15 per cent.; or mercury and aluminium may be omitted; or instead of, or in addition to, mercury, silver 0.5 per cent., barium 0.02 to 0.1 per cent., strontium 0.02 to 0.05 per cent., copper 0.05 to 1.0 per cent., manganese 0.05 to 0.5 per cent. and magnesium 0.01 to 0.15 per cent.' may be used as auxiliary hardeners. The alloy may be prepared as in Specification 548,680.
Patent GB-405821-A (GB)
Title: Television system
IPC: H04N3/08
Filed: 1933-03-18
Abstract: 405,821. Television. PECK, W. H., 5, Forrest Lane, Scarsdale, New York, U.S.A. March 18, 1933, No. 8289. [Class 40 (iii).] In a television receiver in which a fluctuating lightsource I is optically projected on a screen S by a lens L2, the lens is anastigmatic and aplanatic so that a flat and undistorted image of objects in the plane at I is produced on the screen. The lens has an external nodal point N between itself and the light-source I, and the scanning-mirror or mirrors is or are located at or near to this point. Alternatively the lens system may be compounded of two lenses located one on each side of the nodal point and mirrors (Fig. 4, not shown).
Patent GB-1102130-A (GB)
Title: Control mechanism of a character or like information transfer device
Inventor: STUNDEL DIETERE
IPC: B41J25/22
Filed: 1966-02-25
Abstract: 1,102,130. Selective punching. ELEKTRONISCHE RECHENMASCHINEN WISSENSCHAFTLICHER INDUSTRIEBETRIEB KARL-MARX-STADT VEB. 25 Feb., 1966, No. 8454/66. Heading B4B. [Also in Division B6] In a device for perforating a record tape the die is, during the time of perforating, moving at the same speed as the record material 10. As shown, the perforating device 8 comprises a slide mounted for movement in a pivoted guide 9 and mounted on a pin 7 itself secured to a planet gear 6 internally engaging a gear 4. The gear 6 is mounted on an arm 5 fixed to a shaft 1. A gear 2 on the other end of shaft 1 is connected by gearing, not shown, to a gear 3 driving the internal gear 4 and to a gear 13 driving the type-wheel punch &c. 12. In an alternative embodiment, the die (16) Fig. 2 (not shown), is connected to the guide so that they are moved in the feeding direction together.
Patent GB-232576-A (GB)
Title: Elastic tyre with no air tube for wheels of all vehicles
IPC: B60C7/02
Filed: 1925-03-30
Abstract: 232,576. Fabre, A. F. April 16, 1924, [Convention date]. Spring wheels with continuous outer rigid ring and rubber-ring and like cushions.- A rigid hoop 1, Fig. 1, is suspended within the tread portion of a rubber cover 2 the edges of which are clamped to the wheel rim 4, 5. The hoop is enclosed by elastic material 9 with an outer coating 10. The material 9 is preferably kapok with which rubber may be agglomerated, or other textile threads, or substances such as cork, saw-dust, peat, &c., may be used. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the modification shown in Fig. 1 (Cancelled), in which the hoop bears directly against the cover 2. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1215632-A (GB)
Title: Proportioning systems
Inventor: MILLER MICHAEL JOHN
IPC: F01L25/06
Filed: 1968-02-22
Abstract: 1,215,632. Mixing fluent materials in proportionate quantities. BERK Ltd. 3 April 1969 [22 Feb., 1968], No. 8581/68. Heading B1C. Apparatus for delivering proportionate quantities of different fluent materials to an in-line mixer 3 comprises metering pumps 1, 2 and control valves 4a, 4b, each of which is operable to stop its associated pump in responce to the exhaust pressure of the pump at the end of each cycle and also to start a further cycle only when both pumps have completed the preceding cycle. By fluent material is meant a gas, liquid, or solid, or mixture thereof, in pumpable form. A stepup valve 8 may be associated with each pump. In operation, compressed air from line 5 is passed through control valves 4a, 4b to operate metering pumps 1, 2. At the end of each pumping cycle, air exhausted from ports 6 actuates step-up valves 8 to allow air to flow from line 5 through conduits 7 to valves 4a, 4b to stop pumps 1, 2. When both pumps have completed their cycles, compressed air from line 9 passes first through valve 4a and then valve 4b to operate the pumps.
Patent GB-1487531-A (GB)
Title: Fluid-tight fasteners
IPC: A44B19/16
Filed: 1975-02-28
Abstract: 1487531 Fluid-tight strip fasteners MINI GRIP INC 28 Feb 1975 8620/75 Heading E2S A fluid-tight fastener 5 comprises a pair of flexible closure strips 7, 8 each having a web portion 9 and a marginal portion 10, at least the marginal portions being formed from resilient material, each of the marginal portions having at least one solid form-retaining, longitudinally extending rib 12, and alongside the or each rib thereof a groove, or grooves (13) each of which is generally complementary to an associated rib, the maximum width of each rib being greater than the normal maximum width of the associated groove so that the rib causes the associated groove to expand laterally when received therein. a respective bridge area 15 of the resilient material overlying a crown surface 18 of the respective rib when engaged in the respective groove and each bridge area joining the opposite sides of the respective groove and normally maintaining the width of the groove in a smaller dimension than the width of the associated rib 12. The bridge areas are stretched by the lateral expansion of the grooves on the insertion of the ribs and react under tension to draw the grooves sides tightly against the sides of the associated ribs so that the ribs are sealingly gripped in fluid-tight relation by and between the groove sides, the grooves having a normal depth larger than the normal height of an associated rib in order to permit the stretched bridge area 15 to draw in toward the crown surface of the associated rib. As shown, in each strip 7, or 8 the web and marginal portions 9, 10 are integral and are both made of an extrusion of strongly resilient thermoplastic material, a groove 11 being located between the web 9 and the marginal portion 10. Each marginal portion 10 has two ribs 12 and two grooves 13 and each rib 12 has an undercut tooth 14. The thickness of the bridge areas 15 can be selected to provide the desired grip on the interlocking ribs 12 while ensuring that they are not too thick as to render it impossible for the fastener to close.