baber/WOPTO huggingface dataset:
Patent GB-478494-A (GB)
Title: Improvements in optical imaging systems producing a rectilinear slit image
IPC: G03B21/20
Filed: 1937-07-23
Abstract: 478,494. Optical systems. ZEISS, C., [Firm of]. July 23, 1937, No. 20402. Convention date, July 28, 1936. [Class 97 (i)] An optical system for producing a rectilinear image of a luminous linear slit has two surfaces bounded by air, the two principal curvatures of at least one of the surfaces differing from zero, and the curvature of each surface measured in the principal normal section at right-angles to the plane containing the slit and the slit image being constant. The refractive power of one surface resulting from the curvature in the principal normal section at rightangles to the said plane is very small compared to the corresponding refracting power of the other surface. The form shown in Figs. 3 and 4 has constant curvatures in both the principal planes, the light-entrance surface being spherical, and the exit surface being toric with radii r<2>, r<3>. The slit S to be imaged is formed on the lightentrance surface, and consists of a transparent line in an opaque layer covering this surface. The rectilinear image is formed at B. The form shown in Figs. 5 and 6 comprises three members, all of which are symmetrical about the plane containing the slit and the slit image. The two exterior members are symmetrical to each other about the axis of the system, and the medial member is itself symmetrical about the said axis. The light-entrance surfaces of all the members are cylindrical and all the exit surfaces are toric. The slit is divided into three parts of which two, S<1>, are on the light-entrance surfaces r<4> of the exterior members and the third, S<2>, is on the entrance surface r<8> of the medial member, and these slits are illuminated by two lightsources L<1>, L<2>. The three images are in alignment and in contact with each other, and thus form a single rectilinear image B. Another form is described comprising two members one behind the other, the image produced by the first member forming a virtual object for the second. Data are given.
Patent GB-186213-A (GB)
Title: Improvements in thermostatic valves
IPC: G05D23/12
Filed: 1921-07-30
Abstract: 186,213. Horne, A. D. July 30, 1921. Closure members. - The supply of fuel to a heating- apparatus is controlled by an expansible corrugated thermostatic chamber 11 fitted at one end with a valve 15 which co-operates with a seating 5 located between the fuel inlet and outlet passages 8, 9 of an external casing 10 and has formed in it a by-pass 17, capable of regulation by an auxiliary valve or screw 18, for permitting the passage of a small quantity of fuel after the valve 15 has closed. The initial position of the chamber 11 is adjustable by means of a plug 12 screwing into the opposite end of the casing 10, and a cap 20 screwing on to a portion 4 of the casing is provided for protecting the auxiliary valve 18. The chamber 11 is preferably only partially filled with liquid, e.g. olive or castor oil, at normal temperatures, thus permitting a certain idle expansion of the liquid until the desired temperature is attained, when a, rapid closure of the valve 15 is effected. The casing 10 may be provided with lugs 23 for facilitating attachment of the device by clips to the pipes of a hot-water circulating system.
Patent GB-622286-A (GB)
Title: An improved fabric spreading or laying machine
IPC: A41H43/00
Filed: 1946-07-10
Abstract: 622,286 Folding fabrics. FULL-FASHIONED HOSIERY CO., Ltd., BIRCHILL, H., and WHITE, J. C. July 10, 1946, No. 20590. [Class 42 (ii)] [Also in Group XVI] A fabric laying or spreading machine comprises a carriage travelling along a table 1 having a roll of fabric which is drawn off and deposited on the table, and means whereby the roll can be moved axially to adjust the transverse position of the fabric on the table. The roll of fabric is mounted upon centre pieces 14, 14a rotatably mounted on spindles 12, 12a slidable axially between pairs of rollers 13 by the operation of a hand lever 19 in relation to a fixed grip 21. The movement of lever 19 turns a shaft 18, and a fork 17 fast thereon engages a collar 20 on the spindle 12 to position the roll against the action of a spring 15 on the spindle 12a. A. guide plate 22 mounted on the carriage framework visually indicates to the operator any lateral deviation of the edge of the fabric. The leading edge of the fabric is tacked to the table and, after laying, the other end is anchored by impaling the fabric into a row of spikes 25 by a cross-beam 8 vertically movable in the carriage. The spikes are positioned at a suitable position on the table and at each side there is provided a ramp 26 which raises the beam 8 to allow the fabric to rise over the spikes and allows the beam to fall and impale the fabric. Pins 10 plugged into pairs of holes 11 in guides 9 maintain the beam 8 in a raised position when required.
Patent GB-531280-A (GB)
Title: Improvements in expansible fluid thermostats applicable also to other fluid-pressure-actuated devices
IPC: F16K31/68
Filed: 1939-07-15
Abstract: 531,280. Actuating valves. WILCOLATOR CO. July 15, 1939, No. 20657. Convention date, July 15, 1938. [Class 135] [Also in Group XIII] The volume changes of a liquid 21 responsive to, e.g. temperature changes are transmitted to a compressible solid 15 such as rubber which fills a casing 10 and extends into a cylindrical portion containing a piston 13 the movements of which may actuate a valve. Under pressure, the solid 15 is distorted and forced further into the cylinder. The rear end of the solid 15 may be protected by a substance such as glycerine which is immiscible with the liquid. A bimetallic disc 17 may seal the casing 10 so as to compensate for temperature changes around the casing. In modifications, the piston 13 may project into a recess in the solid 15 which closes the end of a single receptacle containing the liquid. In Fig. 8, the compressible body is in the form of a cup 61, the cylindrical wall of which is subject to tension when the fluid expands. The liquid may be chlorinated diphenol. The piston 13 may actuate a valve, switch or the like. The Specification as open to inspection under Sect. 91 describes also a modification in which the cup 72, Fig. 9 (Cancelled), is inverted so as to be compressed by the liquid. A coil spring 72<SP>1</SP> may be embedded in it. This subject-matter does not appear in the Specification as accepted.
Patent GB-1442906-A (GB)
Title: Fluid tight layer on insulated pipe lines rectifier bridges
IPC: F16L57/00
Filed: 1974-05-10
Abstract: 1442906 Covers for insulated pipes FAGERSTA AB 10 May 1974 [11 May 1973] 20687/74 Heading F2P A protective outer cover 3 for an insulated pipe 1 comprises steel plates which are seamwelded together at outward folded flanges 4, 7 at the sides and ends of the plates, the flanges being folded at an angle V greater than 90 degrees so that the joints are resiliently flexible in a direction transverse of the line of the joints. The steel plates-preferably stainless steel-comprise equal semi-cylindrical tubular parts forming the cover in sections, each section (rotatably positioned) relative to adjacent sections such that successive longitudinal flanges 4 do not align. In the region where transverse and longitudinal flanges intersect, the latter may be folded down to form a T-joint, Fig. 2, or may remain directed radially outwards Fig. 3. The inner tube 1 may be made of steel or plastics, insulated by mineral wool, cellular plastics or polyurethane 2.
Patent GB-983614-A (GB)
Title: The use underground of nuclear reactors
IPC: G21D9/00
Filed: 1963-05-23
Abstract: A combined nuclear reactor and heat exchanger (see Division G6) is placed at the bottom of a borehole, in a liquid mineral deposit such as petroleum oil.  During its passage through the heat exchange the mineral is subjected to non-activating radiation (principally g ) which causes radio-chemical effects such as decreases in viscosity.
Patent GB-1069963-A (GB)
Title: Manifold assembly
IPC: F16L5/14
Filed: 1965-05-17
Abstract: 1,069,963. Pipe joints. JET SPRAY COOLER Inc. May 17, 1965 [July 16, 1964], No. 20741/65. Heading F2G. A manifold or bulkhead fitting, particularly for beverage dispensers comprises a first gasket 24, a first disc 26, a second gasket 28 and a second disc 30 stacked in series over an opening in a vessel wall 22, a plurality of tubes (44, 46, 48 and 50), Fig. 3 (not shown), passing through aligned holes in the discs and gaskets from the interior of the vessel to the exterior, an external projecting bead (52 or 56) of larger diameter than said holes on each tube lying in the plane of the gasket 28 towards one or other of the plates, and means compressing the discs and gaskets against the vessel wall thereby forming a leakproof seal. Said means comprises, as illustrated in Fig. 3 (not shown), a stud (42) welded to disc (30), a four-armed retainer (64), and a nut (72). The gaskets are preferably of natural gum rubber and the tubes and discs are preferably of stainless steel, although the latter may also be of plastics, The disc bodies and holes therein are preferably formed by stamping, the resulting burrs enhancing the sealing. Similarly, the holes in the gaskets are stamped, it being stated that in consequence the holes take a double tapered form as illustrated in Fig. 4a (not shown) which permit a wedging fit of each bead in the respective hole when either plate 30 or plate 26 is drawn against the beads on tightening the retainer nut.
Patent GB-964803-A (GB)
Title: Improved means for suppressing interfering voltages in relation to measuring and recording apparatus
IPC: G01R1/30
Filed: 1961-06-08
Abstract: 964,803. Potentiometer measurements. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 8, 1961 [June 11, 1960],No. 20752/61. Heading G1U. A potentiometric measuring circuit is housed in a metal casing 7, and errors due to stray A. C. voltages Ust are eliminated by connecting the input of the circuit to a trifilar choke 1, two windings 1a, 1b of which carry the current from the voltage source Um to be measured (in opposite directions) and the third winding lc being connected through an isolating capacitor 6 to the casing and earth. The resistance of 1c is approximately 25% of that of 1a, 1b. Windings 1c, 1b, 1a are closely coupled and have the same number of turns. A filter 8 is included in the input circuit. The voltage Um is automatically balanced against a voltage from a potentiometer 12 any voltage difference being converted to A.C. by a chopper 9 and fed through transformer and amplifier 10<1> to a motor M which adjusts the potentiometer slider 11.
Patent GB-614354-A (GB)
Title: Manufacture of water-soluble dyestuffs
IPC: C09B67/06
Filed: 1946-07-11
Abstract: Water-soluble dyestuffs, especially direct cotton dyestuffs of the azo and stilbene-azo series, are obtained in pulverulent form by drying the water-soluble dyestuffs, or mixtures of the water-soluble dyestuffs in water-soluble form with other coloured or colourless water-soluble compounds, in the presence of one or more surface-active agents selected from the following classes: (1) aliphatic alcohols containing at least 12 carbon atoms and obtainable from natural oils and fats (e.g. cetyl or oleyl alcohol), and their sulphates and salts thereof (e.g. the sodium salt of sulphated sperm oil alcohols); (2) aliphatic acids containing at least 12 carbon atoms and obtainable from natural oils and fats, and their salts and esters (e.g. oleic acid and its sodium and diphenylguanidine salts); (3) aliphatic or aromatic amines, amides and quaternary ammonium salts with at least one aliphatic radical containing at least 12 carbon atoms attached to the nitrogen atom (e.g. cetyltrimethylammonium bromide or sodium 4 - oleylamino - 1 - methoxybenzene - 2 - sulphonate); (4) condensation products of ethylene oxide with alcohols, phenols, carboxylic acids, amines or amides (e.g. cetyl alcohol condensed with 4, 17 or 30 molecular proportions of ethylene oxide or sperm oil alcohols condensed with 2.5 molecular proportions of ethylene oxide).  The surface-active agent may be added at any stage in the manufacture of the dyestuff paste, conveniently to the solution or suspension of the dyestuff immediately before or during salting out, or (in solution) to the dyestuff immediately before the final drying operation, which may be carried out in any known type of dryer or by admixture with a water absorbing salt (e.g. sodium sulphate).  Examples describe the application of the process to the following dyestuffs: (1), (4), (6) and (7) the product obtained by condensing 4 : 41 - dinitrodibenzyl - 2 - sulphonic acid with 2 - methyl - 5 - methoxy - 4 - aminoazobenzene - 41 - sulphonic acid in the presence of caustic soda; (2) Rhodamine B base; (3) and (5) the product obtained by condensing 4 : 41-dinitrodibenzyl-2 : 21-disulphonic acid with 4-aminoazobenzene-41-sulphonic acid in the presence of caustic soda. Specifications 17677/07, [Class 2], 491,793 and 526,760 are referred to.
Patent GB-838701-A (GB)
Title: A machine for cleaning glazing bars
Inventor: DYER ROLAND
IPC: B44D3/16
Filed: 1955-07-19
Abstract: 838,701. Cleaning glazing bars. BAGSHAWE, P. P. July 13, 1956 [July 19, 1955], No. 20795/55. Class 138(1). A glazing bar cleaning machine comprises a body 11, Fig. 2, with wire bristle brush means so disposed as to provide two sets of bristles 25, Fig. 3, pointing inwardly towards each other with the tips of the bristles separated so that they bear against the sides 26a of the glazing bar 26 and a further set 37 pointing towards the space between the sets of bristles 25 so as to bear on the top surface 26b of the bar 26, whereby all three surfaces of the bar 26 are simultaneously cleaned as the body 11 is traversed along the bar. The body 11 is formed of two bars 12 each having an angular recess 21 in which a brush 23, having the bristles 25, is secured by screws 24. At their rear ends 12a, the bars 12 have lugs 15 adjustably slidable by set screws 16 on a rod 13 and towards the front ends have lugs 18 adjustably slidable by set screws 19 on a rod 17 carrying wheels 20. The backing 32 for the third brush is pivotally supported at its rear end on the rod 13 by levers 34 and towards its front end it is pivotally mounted at 33 on the outer ends of levers 30 secured to the rod 17 to which is also secured a handle 38. A socket 39 pivoted on the rod 13 and provides with a stop member 41 to abut the rear ends 12a, receives a long adjustable handle 40. By manipulation of the screws 16, 19 and rotating the rod 17 in the lugs 18 by means of the handle 38, the brush bristles may be adjusted relatively to each other, the bristles 37 extending between the gaps in the bristles 25. According to the Provisional Specification the third brush 32, 37 may be spring-loaded.
Patent GB-167493-A (GB)
Title: Improvements in power transmission gearing
IPC: B65G27/00
Filed: 1921-08-05
Abstract: 167,493. Klerner, H. Aug. 5, 1920, [Convention date]. Worm-and-wheel gearing specially adapted for actuating jigging conveyers is arranged so that the worm and the worm-wheel and a supporting- casing yield in the direction of the worm axis. The shaft 4 of the worm 3 is driven from a shaft 5 through a coupling 6, which yields axially. The wcrm 3 and worm-wheel 2 are mounted in a casing 1 secured to bearing-blocks 11 for the shaft 12 of the worm-wheel. The shaft 12 carries one or more eccentrics 14 actuating shakers &c. 16. The blocks 11 can slide parallel to the worm axis against springs 8, 9 supported by a fixed frame 13.
Patent GB-410354-A (GB)
Title: Improvements in or relating to nippers or clamps for connecting colliery trucks to a haulage rope
IPC: B61B12/12
Filed: 1933-07-25
Abstract: 410,354. Rope grips. JONES, E., The Bungalow, Boot Hill, Grendon, near Atherstone, Warwickshire. July 25, 1933, No. 20903. [Class 78 (ii).] In a clamp for connecting colliery trucks to a haulage rope, a hardened steel ball 16, Fig. 2, is interposed between a recess in an enlarged lower end 17 of the screwed clamping pin 3 and a recess 15 in the bottom of a lateral recess 14 in the movable jaw 6. The fixed jaw member 4 has a leg portion 1 which is wedge shaped in cross-section and fits into a correspondingly shaped groove 7, Fig. 3, in the back face of the movable jaw 6. The jaw members are secured together by a clip 11. The connecting link 19 is pivoted between a bifurcated lug 8 on the movable jaw member.
Patent GB-499774-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03G3/26
Filed: 1937-07-28
Abstract: 499,774. Automatic volume control. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and KEALL, O. E. July 28, 1937, No. 20918. [Class 40 (v)] The detector diode 8, 9 is muted by the potential across the resistance 55 between the common H.T. negative terminal 37 and earth. When signals of above a predetermined amplitude are received, the muting bias is opposed by the potential across the resistance 47 due to current through a glow-discharge tube 46 made conducting by cutting off the anode current of the triode 33, the grid of which is controlled by the rectified signal voltage across the load resistance 34 of an auxiliary diode 32, 36. The latter is fed from the anode circuit of an auxiliary amplifier 24, the cathode coils 25, 26 of which feed the A.F.C. discriminator circuits 29, 30. The negative feed-back produced by the latter produce a desirable triangular output-frequency characteristic in the muting circuit. The glow-discharge tube 46 may be associated with the tuning scale to act as a tuning indicator.
Patent GB-667369-A (GB)
Title: Rubber reinforcing members and methods of producing the same
IPC: C08J5/06
Filed: 1948-08-10
Abstract: 667,369. Making wire for reinforcing rubber. AMERICAN STEEL & WIRE CO. OF NEW JERSEY. Aug. 10, 1948 [Sept. 30, 1947], No. 21089/48. Class 83 (ii). In a process for producing steel-reinforced rubber articles, the reinforcing steel is made by cleaning the metal, coating it with a copper base alloy and then cold working it to the required size and shape, after which it is bonded to the rubber in known manner. High carbon steel wire containing between 0.5 and 1.0 per cent carbon and between 0.6 and 1.25 per cent manganese is annealed by heating to between 1450‹ and 1900‹ F. and quenching in a lead bath at between 800‹ and 1100‹ F. The thin film of oxide produced by the annealing is removed by an acid pickling bath and the wire electroplated with a copper-base alloy of such thickness that the weight is from one to fifty grams per kilogram of steel wire and preferably from 1.5 to 3.5 grams per kilogram. The coating may contain 50 to 90 per cent copper and 10 to 50 per cent zinc or 80 to 95 per cent copper and 5 to 20 per cent tin, but the preferred composition is 65 to 75 per cent copper and 25 to 35 per cent zinc. The coated wire is then cold drawn to reduce its cross-section by at least 10 per cent.
Patent GB-1455984-A (GB)
Title: Closure cap
IPC: F01P11/02
Filed: 1975-05-19
Abstract: 1455984 Container closures BLAU KG FABRIK FUER KRAFTFAHRZEUGTEILE 19 May 1975 [20 Sept 1974 24 Jan 1975] 21125/75 Addition to 1302631 Heading B8T [Also in Division F2] A pressure-equalizing closure comprises a cap 1, a rigid insert plate 2, and two one-way valves, 9, each passing through a vent hole 7 in the plate 2. The valves include sealing plates 6 engaging toroidal supports 2<SP>1</SP> and held in place by compression springs 8. The sealing plates 6 are held against the toroidal supports 2<SP>1</SP> by axial collars 10<SP>1</SP> projecting from the peripheral edges of valve discs 10. The diameter of the central portions of the valves 9 is less than that of the vent holes 7 and is provided with symmetrically positioned ribs 9<SP>111</SP> used to guide the valves in the vent holes. As in Fig. 2 (not shown) the central portions (11) of the valves 9 are cylindrical while the vent-holes (12) are provided with channels (13) thus providing a faster flow of gas when the valves are open. If the internal pressure is higher than the external pressure then the left-hand valve is lifted from its support 2<SP>1</SP> and the pressure is equalized via one of the vent holes 7; similarly with the right-hand valve if the external pressure is higher. The cap may be of the bayonet type (as in Fig. 1) or adapted to engage externally the neck of a container &c., by means of screw threads (Figs. 3 to 5, not shown).
Patent GB-365567-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/46
Filed: 1930-07-12
Abstract: 365,567. Sparking - plugs. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. July 12, 1930, No. 21152. Convention date, July 31, 1929., Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 7 (iv).] The central conductor is made of a chromiumnickel-steel alloy and may also contain silicon, manganese, and tungsten. The sparking terminal is of platinum.
Patent GB-963675-A (GB)
Title: Arrangement for the insertion and removal of a stack of record members with respect to a magazine of a record media processing device
IPC: G06K13/08
Filed: 1963-05-28
Abstract: 963,675. Statistical apparatus. NATIONAL CASH REGISTER CO. May 28, 1963 [July 11, 1962], No. 21183/63. Heading G4M. An arrangement for inserting or removing a stack of cards 10 from the magazine of a random access storage device of the type described in Specification 889,788 includes a container 100 for the cards having hooks 150 which co-operate with a cylinder 212 slidable on a support rod 213 of the magazine to allow pivotal and axial movement of the container with respect to support rod 213 during the insertion or removal of cards 10, and a device 118 for locking the cards in the container during an insertion or removal operation. To remove a stack of cards from the magazine, a door 205 is opened to permit access to the cards 10 and at the same time to swing the card loading device 50 out of its operative position in relation to the selecting rods 30 which, in the operation of the storage device, are selectively actuated to release one card from the stack. The cards to be removed are held together in a stack with the fingers,the hooks 15 on an empty container are placed over cylinder 212 and the container is pivoted downwards, the stock of cards being guided into the container. The cards 10 are then locked in the container by sliding flange 118e to the right so that plate 110 is urged by springs 115 against one face of the stack so as to clamp the stack between plate 110 and the opposing side of container 100. Flange 118e is retained in its right hand position by a ratchet 130a. The container is next moved to the right along support rod 213 until the selection notches 10i of the cards 10 are clear of selecting rods 30, and is then pivoted upwards on hooks 150, and is finally lifted out of the magazine. The procedure for inserting a stack of cards is exactly the reverse. When the cards are in position on rods 30, flange 118e is freed by lifting tab 130c to release the ratchet and the container is then removed by pivoting it upwards and lifting off hooks 150.