baber/WOPTO huggingface dataset:
Patent GB-403203-A (GB)
Title: Improvements in or relating to the production of photographic prints
IPC: G03C5/18
Filed: 1932-10-07
Abstract: 403,203. Developing photographic diazotype prints. LEUCH, W. P., and HARDING, Ltd., S. C. & P., Alliance Works, Denmark Hill, London. Oct. 7, 1932, No. 27970. [Class 98 (ii).] Diazotype prints are developed by means of a developer containing boric acid in the presence of an appreciable excess of an alkali carbonate, such as sodium carbonate. The weight of anhydrous sodium carbonate used may be four to seven times the weight of boric acid. Examples are given of developers containing (1) sodium carbonate, boric acid and phloroglucine and (2) potassium carbonate, boric acid, phloroglucine and resorcine. Specification 308,653, [Class 98 (ii), Photographic processes &c.], is referred to.
Patent GB-683477-A (GB)
Title: Improvements in and relating to mechanism for guiding a rigid or flexible panel adapted to close an opening in a vehicle body particularly for a motor car
IPC: B60J7/057
Filed: 1949-11-01
Abstract: 683,477. Door-operating mechanism. BESSONNEAU, M. Nov. 1, 1949 [Nov. 5, 1948], No. 28015/49. Class 65 (i) [Also in Group XXXII] A panel sliding mechanism for closing an opening 3 in a motor car body is described for a sliding roof and comprises a panel 7 supported near its front and rear edges by coaxial pairs of rubber covered rollers 8, 9 running on bearing surfaces 6, 5, of runways 4. At its rear end the panel is linked by rods 12 and cheek pieces 13 to a carriage 11, which supports on each side a gear wheel 15 having ogival teeth co-operating with holes 16, Fig. 3, cut in the flange 5. A loose guiding roller 8 is mounted coaxially with the wheel 15, and additional rollers 8, 9 are provided on the carriage as shown so that the carriage with the panel 7 may be moved together along the runways by means of an electric motor fastened to the carriage. Current is supplied to the motor through cables 23 supported by hinged arms 24, 25, which' motor rotates the gear wheels 15 by means of a speed reducer 21, shaft 19, and Cardan shafts 18. Near the rear of the opening 3 the lower flanges 6 are cut away and raised to provide ramps 41 so that when the panel is nearing the end of its closing movement the rollers of the rods 12 move up the ramps and carry the rear end of the panel upwards to lie flush with the roof. In a modification, the panel is used to cover a hood storage space, the panel being driven over runways by a motor which may be connected to a carriage as described above, or be connected directly to the panel. The front of the panel is guided by self lubricating balls sliding over guide rods. Specification 637,871, [Group XXXII], is referred to.
Patent GB-1349796-A (GB)
Title: Electrolytic gold plating solutions and methods utilising such solutions
IPC: C25D3/48
Filed: 1971-06-16
Abstract: 1349796 Electroplating with gold SEL-REX CORP 16 June 1971 [29 June 1970] 28117/71 Heading C7B Gold is electroplated from a solution having a ph of at least 6À5 and comprising a goldcyanide complex and 1-140 mg of thallium per litre of plating solution. The Au can be deposited without co-deposition of the Tl. The Au may be provided by KAu(CN) 2  or NaAu(CN) 2 . Suitable sources of T1 are thallous and thallic salts such as the sulphides, chlorides nitrates and fluosilicates. The pH may be adjusted by adding  HCl, HBr, H 3  PO 4  or organic acids such as formic, citric, acetic, tartaric or gluconic acids. These may be employed as partially neutralized materials using reactants such as NH 4 , Na or K hydroxides or (NH 4 ) 2  CO 3 . The solution may contain a conducting salt which may also act as a buffering material. E.g. it may contain sulphate, sulphamate, formate, acetate, citrate, lactate, tartrate, fluoborate, borate or phosphate ions provided by a metal salt. The electroplating may be at a current density of 1-200 amps/sq.ft. The temperature of operation may be 100-180‹ F.
Patent GB-603558-A (GB)
Title: Improvements in and relating to potters' jolleys
IPC: B28B1/02
Filed: 1945-10-25
Abstract: 603,558. Pottery making. BOULTON. Ltd., W., and FARR, C. Oct. 25, 1945, No. 28127. [Class 87(i)] In a potter's jolley wherein a jolley arm carrying a profile tool is subjected to the action of automatic control means whereby it is lowered pivotally so as first to bring the tip of the tool into contact with the work and then the tool into full contact, whilst the work is rotated by a jigger head, the jolley arm is subjected to the action of two cams, one of which acts to lower the tip of the profile tool into contact with the central portion of the work and the other of which acts to bring the tool into full contact. The work is rotated in a head 12 on a vertical jigger spindle 11 and is shaped by a profile tool (not shown) carried by a jolley arm 20 supported by an arm 19 of a bell crank pivotally mounted on a shaft 16. The tip of the tool is brought into point contact with the work by the action on a roller 23, carried by the rear end 22 of the jolley arm, of a cam 14 on a rotating shaft 13. As soon as the point contact position is reached a roller 18 carried by the other arm 17 of the bell crank is moved towards and brought into contact with a rotating cam 15 on the shaft 13, and the front end of the jolley arm is moved rearwardly and downwardly to bring the profile into full contact with the work. A spindle 40 carries the work table 43 which is segment shaped and has two locations for moulds each consisting of a ring, 44 rotatably mounted in the table. Whilst one mould is being shaped a second may be loaded into the other ring 44, and when the shaping of the first mould is completed the table 43 is raised, rotated and lowered to place the second mould within the jigger head 12. To raise and lower the table 43, a further cam 25 on the shaft 13 operates on a roller 26 carried by a lever 27 pivotally mounted on a shaft 28 and connected by links 47 to a rotatable collar 48 located on the spindle 40 between fixed collars 49. To rotate the table 43 a cam 32 on a rotating shaft 28 acts on a roller 33 carried by a pivoted bell crank lever 34 to reciprocate through a pin and slot connection 37. 36. a slide 38 in a guide box 39. A pin 41 on the slide 38 engages a crank lever 42 on the spindle 40. An electric motor 9 drives. through a V-belt 55 and pulleys 56, the jigger spindle 11 and a spindle 57 carrying a worm 58 which engages a worm wheel 59 on the cam shaft 13. The shaft 28 is driven from the latter by a chain and sprockets. A scraper tool 61 for trimming the edges of the pieces is carried by a pivoted lever 62 actuated by an. adjustable set-screw 64 from a lever 65 projecting from a ring rotatable by a lever 67 carrying a roller 68 engaging a further cam on the shaft 13. The work support may have only one ring 44 and be non rotatable, or it may rotate in one direction only.
Patent GB-1313999-A (GB)
Title: Temperatureregulating apparatus
IPC: F24H3/04
Filed: 1971-06-16
Abstract: 1313999 Automatic control of temperature DANFOSS AS 16 June 1971 [18 June 1970] 28201/71 Heading G3R In an electric heating cooling system (e.g. for a room) a heating resistor element 3 Fig. 1 is connected in series with a PTC resistor 4 which receives cooling air from a fan motor 7, 8 controlled in dependence upon the magnitude and sign of the deviation of temperature sensed by a resistor 11 from a pre-set required value, whereby to vary the motor speed and thus alter the resistance of R4 and hence the current through heater 3 so as to raise the temperature or to energize the motor only and control its speed to reduce the temperature to the desired value. The sensor 11 is connected in a bridge circuit 10 energized via a voltage stabilized rectifier 9. The bridge unbalance voltage U B  is amplified at 12 and applied to a control unit 6 which closes a relay switch 5 and performs a chopping action on an A.C. supply to the motor 8, the motor being switched ON at the end of a delay period after the closing of switch 5. The switch 5 however is closed only if the temperature deviation is negative i.e. temperature too low. If the temperature sensed is above the desired value the blower only will be switched ON to cool the room. The fan air stream also passes across the heater element. Alternatively if a constant speed blower motor is used or if the blower is dispensed with and convection currents used, the air stream may be regulated by a throttle valve or adjustable baffle. There may additionally be provided a cooling device located in the air stream.
Patent GB-364090-A (GB)
Title: Hot draw-bench plant for producing long tubes
IPC: B21C1/30
Filed: 1930-09-22
Abstract: 364,090. Cupping. WHITE, C. H., 253, Gray's Inn Road, London.-(Pressund Walzwerk Akt.-Ges. ; Reisholz, Dusseldorf, Germany.) Sept. 22, 1930, No. 28245. [Class 83 (iv).] A draw bench for long tubes, provided with mandrel guides roll p as described in Specification 296,318, [Class 83 (iv), Metals, Working], is duplicated as shown in the Figure. A pinion d reciprocates mandrels n in opposite directions. In a modification a plurality of benches are driven from a common drive through gearing and clutches.
Patent GB-503873-A (GB)
Title: A process for producing photographic dyestuff images
IPC: G03C7/28
Filed: 1937-10-18
Abstract: 503,873. Colour photography. GASPAR, B. Oct. 18,1937, No. 28280. [Class 98 (ii)] Photographic dyestuff images are produced by incorporating an organic nitro- or nitroso-compound into a layer used for forming a. silver image, reducing the nitro- or nitroso-compound to the corresponding amino-compound and building up a dye from the amino-compound. The nitro compound may be reduced throughout the layer and the dyestuff destroyed locally where silver is present or the reduction may be effected locally either where silver is present or where it is absent. For example pp<1>-di-(nitrobenzoyl-amino)-stilbene-disulphonic acid may be reduced throughout the layer by sodium nitrite solution and coupled with #-naphthol, acid thiocarbamide being employed as the dyedestroying agent, to give a reversed image. To reduce the nitro compound locally where silver is present the reagents described in Specification 397,159 may be employed, or hydrochloric or hydrobromic acids may be used. To reduce the nitro-compound where no silver is present the layer may be hardened at the exposed parts or the silver image transformed into an oxidizing agent. p-nitro-benzoylprimuline-sulphuric acid may also be employed and may be coupled, after reduction, with an alkaline R-salt, or an alkaline H-acid solution. Other compounds are : pp<1>-di-(nitro-benzoylamino) - diphenylurea, nitro - benzoyl - H - acid, dinitro-benzoyl-benzidine-disulphonic acid, 1- nitro - 4 - naphthalene - sulphonic acid, or p - stearoyl-amino-nitro-benzene. The process may be applied to all layers of a multilayer material or to one layer, the others being processed by another process. Specification 490,451 also is referred to.
Patent GB-670961-A (GB)
Title: Improvements relating to power supply units
Inventor: SCOLES GRAHAM JOHN
IPC: G05F1/52
Filed: 1948-11-01
Abstract: 670,961. Automatic voltage control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 21, 1949 [Nov. 1, 1948], No. 28301/48. Class 38 (iv). In a power supply providing two stable voltages, one of which is positive and the other negative with respect to earth, by means of valves in series with the respective power supply lines, one voltage is stabilized against a reference voltage derived from the other circuit, and the second voltage is stabilized against the first. The supply E3 is regulated by a series-connected valve V5 controlled by an amplifier V7 according to the difference between the output voltage and a reference voltage E2 derived from a neon stabilizer S energized by the second supply E1. The supply E 1 is regulated by a series-connected valve V1 controlled by a cathode coupled pair of valves V3. V4. A portion of the sum of voltages E1 and E3 (E3 being already stabilized) is applied to the grid of V3. The grid of V4 is connected to the neon stabilizer S.
Patent GB-674620-A (GB)
Title: Improvements in devices for holding and fixing adhesive tape
IPC: B65H35/00
Filed: 1950-11-20
Abstract: 674,620. Roll holders. OFREX, Ltd., and GILBERT, H. E. Nov. 20, 1950 No. 28316/50. Class, 18. [Also in Group XV]. A holder for a roll of self-adhesive tape comprises an approximately pear-shaped body 1 having a guide member 19 and cutter 4, the roll of tape being supported by an upstanding guide wall 5 and enclosed in the holder by a cover 1x. The guide wall 5 presents a central aperture 6 in the holder which also extends through the cover, a portion of wall 5 being flat and constituted by a portion 7 upstanding from the body and a portion 7 inturned from the cover and each of sufficient depth to provide a slot between their ends, when secured in position, to enable a pivoted finger operated blade 16 to extend through the slot. A spring 11 is attached at one end to the blade and rigidly secured at its other end to the body so that by manipulating the blade the spring can be brought into and out of engagement with the core of the roll of tape thereby preventing the roll from rotating after a length has been withdrawn and the free end of the tape from being withdrawn into the holder. Specification 642,394 is referred to.
Patent GB-337902-A (GB)
Title: Manufacture of compounds having an affinity for cotton
IPC: C09B27/00
Filed: 1929-09-18
Abstract: 337,902. Imray, O. Y., (I. G. Farbenindustrie Akf.-Ges.). Sept. 18, 1929. Addition to 313,636. Azo- and azoxy-compounds; nitrobenzoyl compounds; azo dyes, forming on the material.-Carboxylic acids of aromatic diamino-compounds in which both amino-groups are nitrobenzoylated or in which one amino-group is nitrobenzoylated and the other amino-group may be unsubstituted or may contain a substituent which can be easily eliminated, or of mononitrobenzoylated aminonitro-compounds are subjected to a slight reduction such as is required to convert an aromatic nitro-compound into an azo- or azoxy-compound. The compounds can be diazotized and coupled to form azo dyestuffs on the fibre. In examples, (1) 1: 4-di (4<1>-nitrobenzoylamino)-benzene-2-carboxylate (from 1 : 4-diaminobenzene-2-carboxylic acid and p-nitrobenzochloride is reduced with sodium hydroxide and sodium sulphide or zinc dust and acetic acid; the product dyes cotton bright yellow and when diazotized on the fibre and coupled with 1-phenyl-3-methyl-5-pyrazolone gives a strong greenish yellow, (2) 1-amino-4-(4'- nitrobenzoylamino)-benzene-2-carboxylate is reduced as in 1 and has similar properties, (3) 1-(4<1>-nitrobenzoylamino)-4-acetylaminobenzene - 2 carboxylate (from 1-amino-4-acetylaminobenzene- 2-carboxylic acid and p-nitrobenzoylchloride) is reduced with sodium hydroxide and glucose and the acetyl group removed from the reaction product which gives an intense yellow when diazotized and coupled as in 1), (4) 1-nitro-4-(41-nitrobenzoylamino)-benzene-3-carboxylic acid (by condensing anthranilic acid with p-nitrobenzoylchloride and nitrating) is reduced as in 1); when diazotized on the fibre and coupled with 1-phenyl- 3-methyl-5-pyrazolone or #-naphthol, reddish yellow or scarlet, shades respectively are obtained. Specification 323,710 is referred to.
Patent GB-248076-A (GB)
Title: Improved means for producing magnification with a four electrode valve and circuits therefor
IPC: H03F3/02
Filed: 1924-11-27
Abstract: 248,076. Marconi's Wireless Telegraph Co., Ltd., and Gill, E. W. B. Nov. 27,. 1924. Thermionic amplifiers and detectors.-A fourelectrode thermionic valve A, which may be a detector or a high or low frequency amplifier, is arranged so that the inner grid 2 is charged through a choke 1 and serves as the output electrode. The output, as shown, is applied through a condenser 3 to the grid of a, valve B provided with a leak resistance 4. The relation between the inner grid current and the outer grid potential are analysed in the Specification and the conditions set out to obtain a magnification substantially independent of the potential applied to the inner grid. A number of four-electrode valves may be employed in cascade.
Patent GB-853655-A (GB)
Title: Pipe coupling
IPC: F16L17/035
Filed: 1959-08-20
Abstract: 853,655. Pipe couplings. JOHNS-MANVILLE CORPORATION. Aug. 20, 1959 [June 22, 1959], No. 28474/59. Class 99(1). In a coupling particularly for asbestoscement pipes and comprising a resilient annular gasket 6 between spigot and socket components 3, 1 one of the latter components being grooved, the gasket has a free peripheral surface adapted to contact the tapered surface 25 of one of the components and that surface has two distinct annular ridges 23, 24 defining an imaginary frusto-conical surface having a taper substantially coinciding with the surface 25. In the final assembly of the coupling, the cylindrical end portion 9 of the gasket abuts a shoulder 26 provided on the spigot. In a modification, the inner surface of the socket is tapered, and the groove 2 is formed in the spigot.
Patent GB-1079692-A (GB)
Title: Improvements in or relating to harnesses for jacquard machines
Inventor: STEAD DAVID ANTHONY
IPC: D03C3/40
Filed: 1965-07-06
Abstract: The harness cords between the bottom board (50) of a selvedge jacquard (34) and the comber boards (43) are enclosed in flexible nylon tubes (30) so that the comber boards may be adjusted for different widths of fabric without adjusting their height.
Patent GB-1308634-A (GB)
Title: Energy converter
IPC: H01L31/00
Filed: 1970-06-12
Abstract: 1308634 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 12 June 1970 [30 June 1969] 28506/70 Heading H1K A solar cell 10 comprises a substrate of gallium arsenide with a PN junction 12 near one surface, the surface being covered with a window layer 14 of Ga 1-x Al x As, where 0 < x < 1, contacts 22, 24 being provided on the substrate and window layer respectively. The window layer may be grown from a melt using liquid phase epitaxy, as described in Specification 1,149,109. During window layer formation the substrate may be doped from the layer, forming the zone 20 and junction 12. The window layer may act as a shield to high energy particles, e.g. cosmic rays, and to radiation beyond the ultraviolet. The dopants may be zinc, silicon or tin. The contacts may be of Au, Sb-Au alloy or Au-In alloy.
Patent GB-728401-A (GB)
Title: Improvements in or relating to shock absorbing device for the suspension of vehicles
IPC: B60G13/00
Filed: 1952-11-12
Abstract: 728,401. Spring suspensions. MERCURIALI, A. Nov. 12, 1952 [Nov. 12, 1951], No. 28569/52. Class 108 (2). A shock-absorbing device for vehicle suspension comprises two separate absorbing elements mechanically coupled together and disposed in such a manner that the one provides the main damping action from one of the extreme positions of the oscillating masses to the normal mean position thereof and that the other provides the main damping action from the other extreme position of the oscillating masses to the mean position. In the arrangement shown, a pair of hydraulic dampers A and B, pivotally connected at one end to a member 3 rigid with a vehicle frame C are pivotally connected at their other ends through rods 11, 12 to a lever arm 7 articulated to a wheel carrying member (not shown). The arrangement is such that the rods 11 and 12 are free to move outwards throughout their whole stroke and are hydraulically damped for only that part of the inward stroke movement from their extreme extended positions to the mean position shown, the remainder of the inward stroke movement again being free. Preferably the damping action increases from the extreme extended positions to the mean position. Also, both damping elements may provide a limited subsidiary damping effect during movement from the mean position to the extreme positions. The invention is described with reference to a parallel link suspension and to a rigid axle, leafspring suspension, Figs. 4 and 5 (not shown).
Patent GB-319335-A (GB)
Title: Improvements in rotary tube furnaces
IPC: F27B7/36
Filed: 1929-09-20
Abstract: 319,335. Lang, T., (Assignee of Metallges. Akt.-Ges.). Sept. 20, 1928, [Convention date]. Rotary furnaces.-Relates to rotary furnaces in which the stirrer arms are so mounted that they can be removed and replaced without interfering with the running of the furnace. In one construction the arm 3 extends through a metal-lined opening 4, and is held in position by a cap 5 and pin 6, and by the expansion of the metal walls of the opening. The outer end of the arm may be shaped to fit an opening which tapers towards the interior of the furnace. In another construction (Figs. 3 and 4, not shown) the arm is formed with air cooling passages, and may be perforated for the supply of preheated air to the furnace. Where the arm is longer than usual, increased support may be given by extending the adjacent lining-blocks inwards.
Patent GB-1325784-A (GB)
Title: Telephone circuits utilizing active elements
IPC: H04M1/58
Filed: 1971-06-18
Abstract: 1325784 Antiside tone and line length compensating circuit NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 18 June 1971 [23 July 1970] 28614/71 Heading H4R In an antiside tone circuit which also provides compensation for line length the transmitter 1 is connected via a potentiometer 3 and an amplifier 41, 42, to the line t 1 , t 2  and the receiver is connected from the output of the transmitter circuit to the output of the amplifier, where the signal levels are the same, so that no signal reaches the receiver from the transmitter. In addition variable impedances, e.g. fet's 6 and 7, are connected in parallel with the transmitter and receiver, and their impedances are controlled in dependence on line current, so as to provide compensation for variations in line length. As described the transmitter 11 is connected to the potentiometer 3 by an amplifier 13 and a stabilizing circuit 8 supplies a constant voltage for feeding the amplifiers. A balance network 43 is provided between the amplifier transistors 41, 42, and a voltage dependent on line current, derived from the resistors 91, 92, is used to control the impedances of fet's 6 and 7. Since the matching of the circuit to the line can be affected by variations in impedance of fet 7 an amplifier can be interposed between the connecting points t 1 , t 3  and the fet 7, Fig. 4 (not shown). An alternative stabilizing circuit, more suitable for integrated circuit implementation, uses a single Zener diode and a resistive potentiometer, Fig. 5 (not shown).
Patent GB-281622-A (GB)
Title: Compression refrigerating process and apparatus
IPC: F25B9/00
Filed: 1927-10-27
Abstract: 281,622. Chicago Pneumatic Tool Co., (Assignees of Davenport, R. W.). Nov. 30, 1926, [Convention date]. Refrigerating, compression machines for; refrigerators, domestic and like.-The evaporator of a system using a lubricating working substance is formed with pockets a<2> in which the lubricant is progressively concentrated under the suction of the compressor during its intermittent passage from the regulating valve D to the compressor B. An inert gas may circulate with the refrigerant. The evaporator may be used to cool a domestic refrigerator having a motor-driven compressor 11, Fig. 2, and an air-cooled condenser 13 on the outside of the back of the refrigerator. The evaporator includes an ice-making chamber 9. Specifications 249,097 and 263,562 are referred to.