baber/WOPTO huggingface dataset:
Patent GB-1534812-A (GB)
Title: Method for the purification of interferon
IPC: C07K14/555
Filed: 1977-04-21
Abstract: 1534812 Purification of interferon STICHTING REGA VZW 21 April 1977 [28 May 1976] 16667/77 Heading C3H An aqueous solution of interferon containing contaminating proteins is purified by subjecting the solution to chromatography on porous glass beads. The starting solution may comprise human embryo fibroblast interferon or L-929 mouse interferon. Before elution of the interferon from the beads with an acid aqueous solution, the beads may be washed with a glycine-HCl buffer solution.
Patent GB-612762-A (GB)
Title: Improvements in or relating to processes for coating surfaces
IPC: B05D3/04
Filed: 1946-06-01
Abstract: Surfaces are coated with resinous compositions by spraying on the surface an aqueous syrup of an incompletely condensed hardenable resin and simultaneously supplying a gaseous hardening agent for the syrup.  Specified syrups are those of urea-formaldehyde and phenol-formaldehyde resins.  Specified gaseous hardening agents are hydrochloric acid gas and sulphur dioxide.  The spray-producer described in Specification 566,543, [Group XXIX], may be used.  Wood, stone, concrete and metal may be so treated.ALSO:Surfaces are coated with resinous compositions by spraying on the surface an aqueous syrup of an incompletely condensed hardenable resin and simultaneously supplying a gaseous hardening agent for the syrup. Specified syrups are those of urea-formaldehyde and phenol-formaldehyde resins obtained in known manner by reacting in aqueous medium formaldehyde or a polymer thereof and a phenol, e.g. phenol, resorcinol, m-cresol or sym.-xylenol.  Specified gaseous hardening agents are hydrochloric acid and sulphur dioxide.  Wood, stone, concrete and metal may be so treated.  The spray producer described in Specification 566,543, [Group XXIX], may be used.ALSO:Moulded articles are produced by spraying the outer surface of a former or the walls of a cavity in a former with an aqueous syrup of an incompletely condensed hardenable resin (see Group IV (a)) and simultaneously supplying a gaseous hardening agent for the syrup, the former being subsequently removed.  The spray-producer described in Specification 566,543, [Group XXIX], may be used.
Patent GB-421783-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H05B41/391
Filed: 1934-06-05
Abstract: 421,783. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. June 5, 1934, No. 16711. Convention date, June 7, 1933. [Class 39 (i)] A lamp having either a solid or liquid cathode has an auxiliary electrode between the main electrodes and connected to one of them through a capacitor, and means are provided, responsive to a discharge of the capacitor, for producing a voltage impulse between the electrodes. In one form, Fig. 1, a ring- shaped auxiliary electrode 12 is connected to the cathode 4 through a winding 13 and a capacity 15 which is charged from the mains 6, 7 through a resistance 14. The capacity 15 discharges between the electrodes 12 and 4 and a voltage surge is produced in winding 9 in the anode lead. The winding 9 and a resistance 10 serve as ballast impedance. Varying the resistance 14 controls the light intensity of the tube when an alternating- current supply is used. In a modification for use on alternating-current supply only the condenser 15 is charged through a phase controller which is varied to produce variations in illumination. The filling may comprise mercury or sodium or neon or krypton or mixtures thereof. Dimensions of a typical lamp are given. Specification 252,408, [Class 39 (i)], is referred to.
Patent GB-1207113-A (GB)
Title: Improvements relating to photographic cameras
IPC: G03B13/00
Filed: 1969-03-31
Abstract: 1,207,113. Viewfinders. POLAROID CORP. March 31, 1969 [April 1, 1968], No. 16769/69.  Heading G2A. A scale marking on the bezel of a lens ring, such as a distance scale 24, is reflected into the viewfinder 34, one lens of which has a prismatic refracting portion 30. The reflection is effected by two mirrors 46, 48 supported on the lens housing. The viewfinder comprises a body portion 36 having a finder lens 32 at the front end and a viewing lens 40 at the rear end. The prismatic refracting portion 30 is formed in the finder lens, and has an aspheric surface in order to reduce astigmatism in the light passing through. Within the finder is a frame 54 (see also Fig.3 not shown) providing a clearly defined boundary for the scale image as seen in the viewing lens.
Patent GB-502605-A (GB)
Title: Improvements in or relating to telephone systems and apparatus for use in connection therewith
IPC: H04M1/65
Filed: 1937-06-17
Abstract: 502,605. Substation equipment. MICHAELSON, G. June 17, 1937, Nos. 16844/37 and 8836/38. [Class 40 (iv)]  The number of a substation is transmitted by means of impulses which are generated by a swinging arm H as it scans the surface of a rotatable drum P which bears a contour of the number as a series of conducting areas. A second arm L integral with the arm H cooperates with a record strip X carried by a second drum integral with the first and traces a number in accordance with impulses received from another' substation. The drums are rotated one step after each swing of the arms H, L. The apparatus is started by the actuation of a switch member D either manually by the subscriber or by the operation of relay 7 in response to ringing current, and serves to record the calling subscriber's number at a called substation from which the subscriber is absent and also to record the called subscriber's number at a calling substation as a check on the correctness of the connection. To enable these -operations to take place in succession, the drums are manually adjustable, and the calling subscriber turns his drum P so that the blank half is presented to the arm H while impulses are being generated at the called substation. The engagement of the arm H with a conducting portion of the drum P produces a variation of line current which affects a sensitive relay device d at the receiving substation so that it makes its front contact momentarily and operates the marking magnet G associated with the arm L. A telephone receiver f and microphone h acting as an amplifier are associated with the device d. Impulsing takes place during the movement of the arms H, L to the left under gravity or spring control, the arms being moved by magnet F to the extreme right-hand position where they are held temporarily by magnet 44 and released simultaneously at the two substations. This magnet also controls the rotation of the drums. The arm H makes contact with opposite sides of a strip 25 as it moves in one direction or the other to complete the impulsing circuit and the circuit of F alternately. At the called substation, ringing current operates first relay 7 which actuates the switch member D and then relay E which cuts out a condenser 85 to trip the ringing and permit F to energize. Relay E is slow to release and holds the member D. Means may be provided for delaying the operation of E until ringing has continued for a prescribed period. At the calling substation, the switch member D is actuated by means of a lever D3 and relay E operates subsequently.
Patent GB-201536-A (GB)
Title: Improvements in safety devices for waste gas feed water heaters for locomotive and similar boilers
IPC: F23L17/16
Filed: 1923-06-28
Abstract: 201,536. Marine & Locomotive Superheaters, Ltd., (Assignees of Schmidt 'sche Heissdampf-Ges.). July 26, 1922, [Convention date]. Fee'd-water, heating.-A device for preventing over-heating of feed-heaters in locomotive and like engines comprises a direct connection k with the boiler below the water level, provided with a non- return valve n. A manually-operated valve l or a valve controlled by the pressure in the feed heater b, may also be provided, the arrangement being such that, for example during firing up, water will flow from the boiler to the feed heater. In addition, dampers g shielding the heater band d, e, opening a direct passage for the hot gases, may be operated simultaneously with the valve l. The feed-heater is arranged so as to be wholly below the water level in the boiler.
Patent GB-1087682-A (GB)
Title: Improvements in or relating to machines for handling bulk material
IPC: E02F9/18
Filed: 1966-04-18
Abstract: 1,087,682. Excavators. J. PRADON. April 18, 1966 [April 16, 1965], No.16873/66. Heading E1F. A bucket wheel reclaimer has a buffable, asymetrically loaded bucket wheel-carrying boom supported from a pivotally mounted bridle by at least two links or cables so connected to the bridle that the distance differen-. tial existing between the connections of the links or cables with the bridle and the pivotal axis of the bridle is such as to cause balancing of the asymmetrical loading effects of the boom about the axis.
Patent GB-125324-A (GB)
Title: Improvements in Metallic Packing for Stuffing-boxes.
Inventor: WARD SYDNEY ASLINE
IPC: F16J15/28
Filed: 1918-10-16
Abstract: 125,324. Ward, S. A. Oct. 16, 1918. Packing, metallic; paclcing, removable casings, containers, or carriers for; packing, inserting. - Packing for engines and turbines &c. comprises bevelled segmental white metal or other rings 1 each compressed by a pair of split rings 4. In order to facilitate insertion, the segments of the rings 1 are held together by wire rings, as shown. The packing is contained in a removable casing 6.
Patent GB-932699-A (GB)
Title: Improvements in or relating to suspension means
IPC: E04B9/18
Filed: 1960-05-13
Abstract: 932,699. Suspended ceilings. L. TIBBY. Jan. 19, 1961 [May 13, 1960], No. 16900/60. Class 20 (4). A substantially T-shaped rail 16 of a suspended ceiling is supported from a main member by a C-shaped stirrup 10 adapted to receive the horizontal part 18 of the T-shaped rail, and an approximately Z-shaped strap 12 the lower horizontal part of which engages the C-shaped stirrup and is laterally displaceable therein, and the upper horizontal part of which engages the upper surface of the main member. The T- shaped rail is formed to have panels 17 clipped within them. In Fig. 6, the T-shaped member is defined by the upper parts of two oppositely directed channel members 21.
Patent GB-145270-A (GB)
Title: Improvements in means for preventing the stealing of motor vehicles and the like
IPC: B60R25/021
Filed: 1919-07-07
Abstract: 145,270. Nicholson, S. July 7, 1919. Locking while standing.-The steering-gear or any other suitable part of a motor-vehicle is locked by a mechanism in which a rotatable member moves locking bolts radially when the radial slots in each of several independently adjustable disks coincide with the radial guides for the locking- bolts. The operating disk member 1, Figs 1, 3, 4, 5, is rotated through screw-and-nut mechanism from a sleeve 4 which is pressed downwards by the foot. and is returned by a spring 8. The locking-bolte 19 are provided with pins 20, the upper ends of which engage in circular grooves 9 or spiral grooves 10 in the lower face of the operat. ing disk 1, so that the bolts may be held in their outer or locked position, or may be moved in. wards and outwards radially according to whether their pins 20 are engaging the grooves 9 or 10. The locking bolts slide in radial grooves 13 in a guide member 12 which is bolted to a lower cover-plate 17, and to the upper casing 6 by bolts passing through the holes 18. The bolts can only move inwards or outwards when radial slots 22, 16 in the upper and lower independently-rotatable locking disks 21, 14 coincide with the radial guides 13. The upper locking-disk 21 is rotated so as to bring its radial slots 22 into line with the bolt guides by the operating-disk 1 by means of a pin 23 in the disk 21 engaging a shallow slot 11 extending about half-way round the disk 1 so that there is about 180 degrees of lost motion. Similarly, the lower locking-disk 14 is rotated into the unlocking position by a radial arm 28 adapted to engage shoulders 29 on the disk, the lost motion being over 180 degrees. The lower ends of the pins 20 in the locking-bolts engage circular grooves 15 and radial grooves 16 in the upper face of the locking-disk 14. Both of the locking-disks 21, 14 are held frictionally against accidental movement by pins 24 which are pressed inwards by spririgs so as to bear against the outer edge of the upper disk 21 and the inner wall of the groove 15 in the lower disk 14. To unlock the mechanism and draw the bolts radially inwards, the locking-disks are turned independently by means of the operating-disk 1 through certain definite angles, known only to the user and shown on an indicator, to bring their radial slots 22, 16 into line with the bolt guides 13. The pins 20 and bolts are then forced inwards by openings 27 in the circular slot 9 in the disk 1 so that they engage in and are further operated by the spiral grooves 10. To facilitate angular adjustment of the locking-disks, the operating-disk 1 may have a toothed periphery which engages a pinion on an indicating-spindle. One of the bolts 19 may be connected to a lock for the steering- column and the other to some other moving part of the vehicle.
Patent GB-1113272-A (GB)
Title: Improvements in or relating to the manufacture of artificial leather
IPC: D06N3/06
Filed: 1965-04-22
Abstract: Artificial leather that is pervious to air and water vapour is made by spreading an aqueous dispersion of a vinyl polymer or copolymer and a plasticizer, to which has been added 5 to 40% of a solution of a curable resin in an organic solvent, on a substrate and then gelling the dispersion by heat treatment.  The dispersion may be spread on a preliminary substrate and the gelled layer then stripped off and united with a final substrate.  The substrate may be a fabric, a fibre web, or a paper web, and the final substrate may be a knitted web.  The curable resin may be an alkylated amino resin such as a butylated or propylated urea formaldehyde resin or melamine formaldehyde resin.  The plasticizer may be one or more of di-(2-ethyl hexyl)phthalate, butyl benzyl phthalato or di-n-heptyl phthalate, sebacates, azelains, epoxy plasticizers and polymer plasticizers, thickening agents for the aqueous phase may be added to the dispersion e.g. bentonite, as well as fillers, foaming agents, stabilizers, pigments.  Suitable solvents for the curable resin mentioned are alcohols such as isopropyl alcohol, or a mixture of an alcohol with an aromatic hydrocarbon e.g. butanolxylene.  In the Examples, the dispersions comprise (1) 100 parts of a 4% aqueous methyl or carboxymethyl cellulose, 75 parts of a pigment dispersion containing 3 parts pigment and 72 parts di(2-ethyl hexyl)phthalate plasticizer, 100 parts emulsion type polyvinyl chloride, 3 parts calcium magnesium carbonate stabilizer, 50 parts of a 60% solution of a butylated urea formaldehyde resin in butanol-xylene; (2) as in (1) with 50 parts of a 60% solution of butylated melamine formaldehyde in butanolxylene instead of urea-formaldehyde; (3) as in (1) with 72 parts butyl benzyl phthalate instead of di(2-ethyl hexyl) phthalate, and 45 parts urea formaldehyde solution; (4) as in (1) with 65 parts of the urea-formaldehyde and 15 parts calcium magnesium carbonate, 25 parts bentonite; (5) 100 parts of a 4% aqueous methyl cellulose solution, 87 parts of a dispersion comprising 64 parts di-n-heptyl phthalate, 17 parts of di(2-ethyl hexyl) phthalate, 2 parts epoxy stabilizer, 1 part Ba-Cd stabilizer, 3 parts pigment, 100 parts polyvinyl chloride (70% of the particles having a grain size of 0.2 to 0.8 mils), 40 parts polyvinyl chloride (70% particles grain size 2 to 10 mils), 30 parts of a 60% solution of butylated urea-formaldehyde resin in butanolxylene; (6) as in (5) with calcium magnesium carbonate, bentonite and is spread on a rayon cross twill fabric.  The leather may be used for foot-wear, clothing and upholstery.
Patent GB-169558-A (GB)
Abstract: 169,558. Jackson, W. J. Mellersh-, (Herman, S., and Herman, R., [trading as Diamond Power Specialty Co.]). July 15, 1920. Cleaning, fluid-pressure processes for. -In a rotary blower installation for cleaning boilers, the valve for controlling the supply of fluid to the blower is located in a hollow head also containing the mechanism for rotating the unit. The blower head A rotated by the usual worm E and worm wheel gear D is journaled in the head B, the end thrust of the blower being taken by a centrallyapertured member I normally closed by a slidevalve 0 which is operated from a lever R through a rock shaft Q and rock arm P recessed to receive the valve which is pressed upon its seat by a spring U. The back of the head is closed by a hollow cap L with which the steam supply conduit C is in communication.
Patent GB-543920-A (GB)
Title: Improvements in cathodes for cathode ray tubes
IPC: H01J29/48
Filed: 1940-11-29
Abstract: 543,920. Heating cathodes by electric resistances. BRITISH THOMSON-HOUSTON CO., Ltd., and RUSHFORTH, L. Nov. 29, 1940, No. 17034. [Class 39 (iii)] [Also in Group XL] Indirectly heated cathodes for cathode-ray tubes &c. comprise two flat spirals 1, 2, oppositely wound and connected in parallel to a source of heating current, for the purpose of avoiding magnetic field effects. The spirals are located, in a mass 5 of refractory insulating material in a box 4, one side 6 of which is dished and coated with electron emissive material. The other side is closed by a disc 7 provided with a hole through which the inner ends of the spirals pass to a terminal support 11. The outer ends of the spirals are connected together through the box and to a terminal support 10.
Patent GB-170518-A (GB)
Abstract: 170,518. Arrowsmith, J. W. P. Dec. 17, 1920. Locking nuts.-A locknut comprises two parts A, B having respectively a screw-threaded eccentric recess, and corresponding eccentric projection. The pitch of the screw-thread on the projection and in the recess differ from that on the central bolt. To lock the nut the portion A is given half a turn relatively to the part B. The screw-threads in the recess may be of square or round section.
Patent GB-201355-A (GB)
Title: Vending machines
IPC: G07F11/62
Filed: 1922-06-20
Abstract: 201,355. Gilbert, W. H. June 20, 1922. Delivery of articles stored in separate compartments; casings.-In a vending machine the articles are contained in separate, compartments which are unlocked by a special key or token on which the price of the article is marked during the unlocking operation. The same key unlocks all the compartments of a series and is marked in a different place according to the compartment unlocked. Repeated unlocking of the same compartment is also indicated on the key. The compartments are supported by front and rear panels 12, Figs. 3 and 8, and shelves 13. Each compartment has a door at the back for refilling and is provided with a hinged front door having a glass panel 18 through which the contents are viewed and locking means comprising a hook 29 with a curved cam surface engageable by a pin 31 on a bell-crank lever 32, 34. This lever is actuated to hold the door closed by a lever 45 through a link 41 and a bell-crank 39, 37, the arm 37 having a pin 36 engaging the forked end of the arm 34. The lever 45 is held in locking position against the action of a spring 46 by a rod 48 which abuts against two plates 53, 54 slidable in a guide 55. Coin action, thrust; tokens of special form.- The door is unlocked by inserting through a flared opening 67 a token 64 of thick paper or card. Steps 71, 69 on the token engages heads 56, 57 on the slides 53, 54 and press them back against springs 61 until apertures therein become aligned with the rod 48 which passes through and allows the spring 46 to move the lever 45 to unlocking position. One apertured slide only, or more than two slides with corresponding stepping of the token, may be used. Ticket-printing and like apparatus; several operations recorded on a single token.-The token or card 64 is marked with the price of the article by type 73 on a roller 74 rotatably mounted between vertical flanges 76 of the base 65 of the guideway for the token, an inking roller 81 being mounted adjacent the roller 74. By varying the position of the type 73 on the roller, and the position of the roller, the token will be marked in different positions according to the compartment opened. The base 65 may be pulled out for alteration of type &c. It is held in normal position by an angled leaf spring 99 engaging a notch in the base 65. The roller 74 has a pinion 77 engaging a rack 78 which is moved against a spring 96 by the token. The token acts against one of four pins 87 projecting from a ratchet wheel 85 carried by an offset 84 on the rack. The pins 87 are of different lengths and the ratchet wheel is turned one step at each insertion of the token by a spring-controlled pawl 94 mounted on a rod 91 attached to the lever 45. By this means, if a token is repeatedly inserted to unlock the same compartment, it will be marked in a slightly different place as shown in Fig. 11. To prevent fraud by insertion of a token covered by paper, a friction bar 101 of soft material, such as rubber, is provided at the opening 67.
Patent GB-477261-A (GB)
Title: Draught-excluder device for doors and hinged windows
IPC: E06B7/20
Filed: 1937-06-19
Abstract: 477,261. Draught-excluders for doors and casements. KIRKCALDY, A. F. June 19, 1937, No. 17133. [Class 20 (iii)] A hinged-flap draught-excluder for the lower edge of doors and casement windows of the kind which is depressed against the step when the door closes, is raised and supported when the door opens by an arcuate plate 9 fixed at the junction of the sill and hinge post and provided with an inclined flange 10 at its front edge. The flap has a wear bead 12 engaging the plate 9. At the striking post, an additional supporting plate 13 is provided for the edge of the flap. The flap is depressed and held against the sill by a cam 6.
Patent GB-1384942-A (GB)
Title: Admittance-matching network for the parallel connection of wide-band active power elements
IPC: H03H7/38
Filed: 1972-04-13
Abstract: 1384942 Admittance matching network THOMSON-CSF 13 April 1972 [13 April 1971] 17179/72 Heading H3U An admittance matching network connecting an input port to n(n>1) output ports comprises p(p>1) stages of four terminal network units, F 1 , F 2 , each stage comprising groups of q(q>1) such networks, the q networks of each group having their inputs connected in parallel to one of the networks of the preceding stage, so that n = q<SP>p</SP>. In Fig. 2, p = q = 2. Balancing resistors U between outputs may be provided, to compensate for unequal characteristics amongst the n loads. A network unit may comprise an L-C circuit, Fig. 3 (not shown), or a capacitor or transistor together with a wire contributing inductance. Integrated circuit embodiment, Figs. 5, 6 (not shown).-An earthed heat sink (48) supports an input capacitor (C1) of ceramic, thin film or metal oxide semi-conductor construction connected to capacitors (C 2 , C 3 ) of similar construction and thence to the bases of transistors (T 1 -T 4 ), whose emitters are earthed to heat sink (48), via leads (51-54), network units comprising: C 2 , M; C 3 , N; input capacitances of (T 1 -T 4 ) and (43-46) respectively. Balancing resistor (42) is formed by vaporization, or doping impurities on a semi-conductor. The transistors are formed on beryllium oxide substrate (47). Stray inductance of leads (M, N, 43-46) thus play an essential part in determining the network unit characteristics. The loads may comprise transistor amplifiers, avalanche oscillators, or gunn diodes.