baber/WOPTO huggingface dataset:
Patent GB-1133596-A (GB)
Title: Electrostatic office copier
IPC: G03G15/28
Filed: 1966-06-13
Abstract: 1,133,596. Electro-photographic apparatus. GENERAL ANILINE & FILM CORP. June 13, 1966 [June 14, 1965], No. 26168/66. Heading G2H. In an electro-photographic copier an image of an original is produced on a photo-conductive copy web having a length equal to that of the original. As shown in Fig. 2, the original is fed from a tray 38 by a belt 52 past a vertical glass plate which is illuminated by a lamp 88 having a parabolic reflector 90, and out into a tray 56; the image of the illuminated original is focused on a copy sheet exposure plate 112 by a lens 98 and a reflector 100, the intensity of the light being controlled by mask plates 110, 113. As the original is fed in it closes a micro-switch 42 which engages a magneticclutch causing the copy web 116 to be unwound from a roll in a dark chamber 115, from which it is transported, at the same speed as the original by rollers 120 past a cutter 122, 123; when the trailing edge of the original passes the micro-switch 42, the switch is closed causing the unwinding of the roll of copy web to be terminated by a brake, and to operate the cutter 122, 123. The severed part of copy web is transported past a charging station 130 and the exposure platen 112, through a duct 152 mounted in a bath 158 into which liquid developer is pumped from a reservoir 156, past a wiper 166 and through squeegee rollers 154 which remove excess developer between porous belts 170, 172, and into a tray 26. The apparatus is fitted with a blower 78 which cools the apparatus so that it may be used continuously, causes a partial vacuum to be created in a suction tank 135 above the charging and exposure stations 130, 112 to keep the web flat, and dries the developed web whilst it is between porous belts 170, 172. A selected piece of a lengthy original may be copied on a short piece of copy paper, by lifting tray 26 and inserting the paper into the feeding mechanism.
Patent GB-1005807-A (GB)
Title: Improvements in or relating to loading and unloading equipment
Inventor: RINK HELMUT
IPC: B65G49/08
Filed: 1962-07-09
Abstract: 1,005,807. Feeding and discharging conveyers. LEYBOLD-ANLAGEN HOLDING A.G. July 9, 1962, No. 26320/62. Heading B8A. Tiers of slides 14 on a frame 9 are loaded successively with trays 15 by at least one conveyer 16. As shown, a fixed conveyer 16 feeds trays 15 to respective slides 14 as the frame 9 is progressively lowered by hydraulic means 3. When a column of slides is filled, the frame is moved sideways on runners 7, 8, and the second column is filled. When all the columns have been filled, the frame 9 is rotated through 180 degrees and a second tray is deposited on the other end of each pair of slides 14. The apparatus may be controlled by programming means. A casing 1 may contain gas or a degree of vacuum. The apparatus may form part of a freeze drying plant.
Patent GB-264768-A (GB)
Title: Improvements in cigarette cases
IPC: A24F15/12
Filed: 1926-02-15
Abstract: 264,768. Arnold, C., (Lyons Manufacturing Co.). Feb. 15, 1926. Lids. - In a cigarette case having a lid 11 slidably mounted upon the body 10 of the case the relative movement of the lid and body is limited by a plate 19 the larger part of which is arranged parallel to the face of the body, and one end 26 of which is bent outwardly so as to engage the flange 25 of the lid. The plate is fixed with respect to the body by the engagement of members 22 with projections 24 upon a plate 13 which is secured within the body. The inner edges of the members 22 are preferably arranged at an angle to permit ready entrance of the projections 24 therebetween. The plates 13, 19 form a recess adapted to receive a spring feed mechanism 15 for the cigarettes.
Patent GB-470368-A (GB)
Title: Improved method and apparatus for controlling the patterns of fabrics
IPC: D03C3/20
Filed: 1936-09-29
Abstract: 470,368. Jacquards. PERRY, W. E. Sept. 29, 1936, No. 26456. Convention date, Feb. 8. [Class 74 (i)] [Also in Group IX] To control the pattern produced in fabrics by a loom or lace machine &c., separate perforated cards 10 are fed one at a time from a stack 75 to . a position under spring-controlled contact pins 102 on a plate 103, which is lowered to read the card. Afterwards the read card is fed to a stack 146. The holes in the read card allow corresponding contact pins to contact with a plate 100, and corresponding solenoids 161, Fig. 11, connected to the pins 102 by wires 109 in a cable 113 are consequently energized. Strings &c. 177 connected to their cores then move hooks 172 out of the path of a lifting griffe. The hooks 172 operate loom healds or lace machine jacks. The cards are fed from the bottom of the stack 75 by a cam-controlled reciprocating pusher with a stepped resilient pick-up arm 74 fitting through a slotted plate 76 to rotating feed rollers 91, under a pivoted anti-rebound brush 97 and between side guide members. The card is stopped by a projection 121 on a cam-controlled lever 122 and the plate 103 is lowered by a cam-controlled link. The lever 122 is then oscillated and the read card is shot by a lowered rotating roller 141 into the stack 146. The cards may be automatically elevated from the stack 146 to the stack 75. Small cards with rectangular holes &c. punched in a punching machine of the typewriter type may be used. They may be of flexible paper with horizontal and vertical rows punched with pattern determining holes 15, Fig. 6, and indexing holes 17. Each card may be advanced on the floor 31 of the punching device into position under a plate 32, Fig. 2, by a hook on a slider actuated by lever mechanism from a handle, and be punched by spring-controlled pins 35 controlled by hand-depressed levers 37. The card is advanced to the next row by depressing a lever carrying a ratchet wheel, a feed roller and a pawl. After the feed roller has been lowered into contact with the card, the pawl rotates the ratchet-wheel and feed roller. The punched cards may be passed through a sorting machine.
Patent GB-780302-A (GB)
Title: Manufacture of steroids with oxygen in 11-position
IPC: C07J75/00
Filed: 1953-09-14
Abstract: 11 : 12b -Oxido-steroids are prepared by treating a sulphonic acid ester of an 11b -acyloxy-12a -hydroxy steroid with an alkaline hydrolysing agent, particularly an alkali metal hydroxide.  The acyl group on the 11b -hydroxy group is preferably derived from a carboxylic acid having a pK value not above 3.755. The starting materials may be derivatives of ergostane, cholestane, coprostane, sitostane, stigmastane, spirostane, cholane, allocholane, pregnane, allopregnane, androstane and testane, which may be further substituted by e.g. hydroxy, keto, acyloxy such as acetoxy, propionyloxy or benzoyloxy, alkoxy, carboxyl, nitrile, esterified carboxyl, or lactone groups such as a butenolide group, and may also contain double bonds, particularly in 5 : 6 or 22 : 23 position.  In examples: (1) 3a , 11b -diacetoxy-12a -hydroxycholanic acid methyl ester is treated at 0 DEG  C. with methane sulphonyl chloride in pyridine, a solution of the resultant 12a -mesyloxy derivative in ether is added dropwise to hot methanolic KOH, and after refluxing, the methanol is removed, the residue acidified and 3a -hydroxy-11 : 12b -oxidocholanic acid isolated by extraction with ether; re-esterification with diazomethane followed by acetylation yields 3a -acetoxy-11 : 12b -oxidocholanic acid methyl ester, also obtained (2), from 3a  - acetoxy - 11b  - trichloracetoxy - 12a -hydroxycholanic acid methyl ester as in (1).  Starting material.  3a -Acetoxy - 11b  - trichloracetoxy - 12a  - hydroxycholanic acid methyl ester is prepared by treating 3a -acetoxy-11 : 12a -oxido-cholanic acid methyl ester in toluene with trichloracetic acid at room temperature.
Patent GB-987523-A (GB)
Title: Tire building apparatus and method for building uncured tire bands
IPC: B29D30/32
Filed: 1963-07-04
Abstract: 987,523. Tyre-building machines. FIRESTONE TIRE & RUBBER CO. July 4, 1963 [Aug. 10, 1962], No. 26523/63. Heading B7C. Fabric plies are wound on a core which comprises a drum 21 and a ply ring assembly 30, axially movable into and out of engagement with the drum (Fig. 1), the assembly 30 carrying on its edge means 53 to clamp the overhanging fabric plies against the drum 21 after they have been folded down by a retractable tuck-in assembly 68 (Fig. 12), prior to a bead placing assembly 31 placing a bead core on the radially outer surface of the fabric. Each ply ring assembly 30 (Fig. 1) is axially movable on sleds 32 actuated by a double rod cylinder 39, and each comprises a cylindrical shell 44 (Fig. 12) carrying resiliently mounted gripping means 53, within which a plate 69 bearing resilient fingers 70 is axially slidable. Over the shell 44 a beadengaging ring 82 is movable by cylinders 85. When the ring 82 is advancing, pushing a bead core into position, axial movement is transmitted by rollers 92. When ring 82 is being withdrawn foot blocks (Fig. 16, not shown) engage leg 95 of ring 82 to transmit movement. In use, assemblies 30 are engaged with drum 21 and plies applied and stitched by stitchers 98 (Fig. 3). Assemblies 30 are axially withdrawn (Fig. 4, not shown) and then advanced again (Figs. 5, 11, not shown). As each assembly 30 advances, fingers 70 engage the radially outer surfaces of the ply overhanging the drum ends, then as assemblies 30 and drum 21 engage (Fig. 12), plates 69 are pushed axially within shells 44, folding the ply ends down, the ply ends being finally gripped between means 53 and the bevelled edges of drum 21 (Fig. 6, not shown). Bead placing assemblies 31 are advanced (Fig. 7), pushing bead cores previously placed over shells 44 into place on the ply. Assemblies 30 are withdrawn and ply overhangs folded and stitched around the bead cores (Fig. 9, not shown). Sidewalls and tread are added before the raw tyre band is removed from the collapsible drum 21 for shaping &c. While drum 21 is rotatable on its shaft 26, assemblies 30 are freely mounted so as to rotate with the drum 21 when engaged therewith.
Patent GB-1370214-A (GB)
Title: Logic gates
IPC: H03K19/007
Filed: 1972-06-07
Abstract: 1370214 Fail safe switching circuit ALLENBRADLEY CO 7 June 1972 [10 June 1971] 26552/72 Heading H3T A fail-safe logic circuit has current sensing means connected to the input which open circuits the output if there is no input current. The sensing circuit may also operate an alarm and indicate which circuit has failed. In the logic inverter of Fig. 1 current from a "high" signal at 10 switches on a transistor 26 which switches off a transistor 29, giving a low output. Similarly current from a "low" input switches off transistor 26, allowing 29 to conduct and give a "high" output. In the absence of input signal current, the lamp 15 is unlit, the resistance of a photosensitive element 18 rises and transistor 33 switches on. Accordingly a diode 34 holds transistor 26 off, a diode 35 holds transistor 29 off and the connection to the output terminal is therefore open circuited. Diode 37 provides a failure indication signal at terminal 37. Fig. 2 has a similar output circuit which is driven to its two logic states via the respective emitter-base diode of transistors 43 and 46 and a diode 49. If there is no input current, transistors 43 and 46 both become non-conducting so that transistor 56 is biased on by current from a resistor 45 and transistor 58 is biased on by an inverter transistor 54. Conduction of transistors 56 and 58 switches off both output transistors to open circuit the output. Fig. 3 shows a NAND gate comprising input signal current sensor blocks 68 and 70, a diode gate 106, 100 and an output stage 69. If the input signal at 65 is "low," transistors 73, 79 and 84 conduct. Transistor 84, via gate diode 100, holds output transistor 26 off allowing transistor 29 to conduct and to provide a "high" output. A "low" input at 66 acts similarly. If the input at 65 is "high", transistor 84 is off and a "high" is applied to the gate diode 100. If input 66 is also "high" a "high" is applied to gate diode 106 allowing transistor 26 to conduct and apply a "low" to the output. If there is no input current at 65, transistors 84 and 90 are both off allowing 87 and 98 to conduct and switch off output transistor 29 and light a warning LED 105. As 98 and the emitter-base path 87 are conducting, a "low" is applied to gate diode 100 holding the lower output transistor 26 off. Diodes 80 and 92 are connected to a potentiometer 82, 83, 95, 94 to clamp transistors 79 and 90 out of saturation when conducting. In Fig. 4, not shown, current sensors of the type shown in Fig. 3 feed a diode gate connected to the output terminal via a relay contact. The current sensing output (from transistors 87 and 287 of Fig. 3) cause the relay to open circuit the output if the input signal current is zero.
Patent GB-325483-A (GB)
Title: Improvements in or relating to primary electric cells and batteries
IPC: H01M6/06
Filed: 1928-09-17
Abstract: 325,483. Schmid, A., and Metropole Developments, Ltd. Sept. 17, 1928. Electrolytes; electrodes. - A depolarizing electrolyte for a primary battery consists of a mixture of an oxidizing agent such as an alkaline bichromate or chromic acid, with sulphuric acid in such proportions as to produce a soft or plastic mass which is solidified bv the addition of a silicious material such as water glass or silicic acid. The electrolyte is dissolved in water when required for use. The solid or plastic mass may be stored in the battery cell or in a separate container. The solidified mass may be powdered and pressed into moulds to form tablets, or the material may be melted by heat and cast into tablet form. The tablets may be protected by a coating of gelatine or by a waterproof coating or a coating of a non- hygroscopic soluble salt such as sodium phosphate. The waterproof coating must be destroyed before the tablet is dissolved in water to form the electrolyte; such a coating may be formed by a closed metal capsule. Fig. 3 shows a refill for a battery comprising the electrolyte mass 1 in a metal case 3 together with a zinc electrode 4 separated from the electrolyte by a soluble layer 5.
Patent GB-384385-A (GB)
Title: Chain links
IPC: F16G15/02
Filed: 1931-09-23
Abstract: 384,385. Making chains. LUTTS, C. G., 26, Dearborn Street, Salem, and LEAHY, A. M., 58, Partridge Avenue, Somerville, both in Massachusetts, U.S.A. Sept. 23, 1931, No. 26600. Convention date, Sept. 23, 1930. [Classes 83 (ii) and 83 (iv).] Jointing by forging. -Relates to links for anchor chains &c., of the type which a r e formed of two U- shaped members 15, Fig. 2, and 27, Fig. 3, provided respectively with sockets 12 and ribbed spigots 18 which are drop-forged into interlocking connection in the building up of the chain, and consists in forming the members of portions of rolled metal stock, and forming the sockets during forging with lugs 16 which abut to form the link stud. Preferably the spigot member 27 is heattreated to increase its tensile strength over that of the original stock by 50 per cent. The sockets and spigot ends are tapered, and the spigot ends are flattened on opposite sides as at 29 and are connected to the main part by necks 26. The ribs 22 have straight shoulders on one side and are curved or tapered on the other. The tips 25 are conical with a maximum apex angle of 140‹. Preferable dimensions of the different parts are as follows : the crosssectional area of neck 26, 65-70 per cent of the area of stock ; the minor diameter of the tapered spigot 18 for the greater part of its length, 75 per cent of the stock diameter ; the cross-sectional area of the socket member near the tip of the socket, 90 per cent of the area of the stock ; and the length of such spigot end 18, about <1>/6 of the total length of the link.
Patent GB-535934-A (GB)
Title: Manufacture of polymeric materials
IPC: C08G75/00
Filed: 1939-09-25
Abstract: 535,934. Linear polymeric carbothionamides. DU PONT DE NEMOURS & CO., E. I., and HANFORD, W. E. Sept. 25, 1939, No. 26600. [Class 2 (iii)] Linear polymeric carbothionamides are prepared by reacting, at an elevated temperature, hydrogen sulphide with a compound containing two nitrile groups separated by a chain of at least 3 contiguous carbon atoms, and a compound containing 2 primary aliphatic amino , groups separated by a chain of at least 2 contiguous carbon atoms, the proportions of the compounds being so selected that there is present a substantially equal number of nitrile groups and primary-aliphatic amino groups. Alternatively, hydrogen sulphide is reacted, at an elevated temperature, with a compound containing a nitrile group and a primary aliphatic amino group, said compound being so selected that the structural unit formed will have a chain length of at least 7. Specified inert solvents for the reactants are phenol, cresols, o-hydroxydiphenyl, n-butanol, dioxan, #-methoxyethanol methanol xylenols, di-nbutyl ether, and the dimethylether of ethylene glycol. Temperatures range from 75-300‹C., and pressures from 1-100 or more atmospheres. Examples are given of the preparation of linear polymeric carbothionamides from :-(1) adiponitrile, ethylene-diamine and hydrogen sulphide; (2), (3) and (6) sebaconitrile, decamethylenediamine and hydrogen sulphide ; (4) adiponitrile, hexamethylene-diamine and hydrogen sulphide; (5) decamethylene-diamine, p-dicyanobenzene and hydrogen sulphide ; (7), (8) and (9) #-aminocapric acid nitrile and hydrogen sulphide.
Patent GB-188490-A (GB)
Title: A new self driving motor
IPC: F03G7/10
Filed: 1921-10-08
Abstract: 188,490. Grainger, T. Oct. 8, 1921. Self-driving machines. -A wheel 1 is carried on a shaft 2 by standards 3 and is provided with flanges 1<a> set at about 20‹ and formed with teeth 4. Rollers 5 meshing with the teeth 4 are mounted in stirrups 6 so as to be set off from the vertical diameter of the wheel, and it is stated that on pressure being applied to the rollers 5 the wheel 1 is rotated by the action of the rollers and the coacting toothed flanges 1<a>. Specification 114,254 is referred to.
Patent GB-733911-A (GB)
Title: Apparatus and process for the extrusion treatment of plastic material
Inventor: FULLER LAWRENCE J
IPC: B29C48/395
Filed: 1950-11-01
Abstract: 733,911. Mixing-appliances. WELDING ENGINEERS, Ltd. Nov. 1, 1950, No. 26701/50. Class 86. [Also in Groups I, V and XXX] Relates to apparatus for extruding thermosetting and thermoplastic resins, rubber, polybutene, &c. The apparatus mixes and kneads the material, generates heat therein and may extract water, gases, volatiles, &c. According to the invention, the extruding means comprises oppositely-rotating parallel screw flights 22, 23, Figs. 1 and 2, which feed the material to reversely-acting screw flights 31, 32 which exert a back pressure on the material, and from these reverse flights the material passes into a region 44 of lower pressure than that existing in the reverse flights. This region may be at atmospheric pressure or other pressure, e.g. partial vacuum, and volatiles may be removed as desired. The work done on the material heats it. Liquids are drained off around screw plugs 33. The material forced through the flights 31, 32 is fed by flights 46-19 through screen 51 and die 52. The time during which the material is confined in the reverse flights 31, 32 is regulated by varying the length of the cover surface 35. This surface is provided by a main block 37 and a supplementary block 39 having a liner 38 which may be replaced by a longer or shorter liner. Solid or fluid ingredients may be added at the opening 44 or at the hopper 27. The screw casing has a temperature-controlling jacket divided into independently-controllable sections 53-58. When thermo-setting material or rubber is being extruded it may pass from the die to a hot zone to complete the setting or vulcanization. The cover surface 35 may be formed by a block vertically adjustable by screw means having an indicating dial (Figs. 4 and 5, not shown). Figs. 6 and 7 show a modification in which bypass conduits 81, 81a connect the reverse flights 77, 78 with a region 83 of low pressure positioned near forward flight 84. A screen 85 is disposed across the entrance to region 83. A perforated partition 88 separates the forward parts of the two screws 71, 72, which include also reverse flights 86, 89, and 93. Figs. 8 and 10 show a modification in which a relief passage 108<SP>1</SP> is provided in a by-pass block 108, to transfer material from reverse flights 104 to forwarding flights 110. A perforated screen 98 extends between forwarding flight 111 and reversing flight 117. Fluids escape through openings 99, 116, 145. In Fig. 9 (not shown), the block 108 is on the underside of the screw. Figs. 11-15 (not shown) illustrate the by-pass blocks in more detail. Fig. 17 shows screws having cylinders 159 which sheet the material. In Fig. 20 the back pressure is controlled by a screw-operated block 169, the flights 167 and 168 are staggered to grip the material along zigzag lines and carry it forward, and a cover 175 has an outlet 176 for release of volatiles under vacuum.
Patent GB-859670-A (GB)
Title: Improvements connected with arresting nets for aeroplanes
IPC: B64F1/02
Filed: 1959-08-05
Abstract: 859,670. Aircraft arresting gear. FONDEN, P. B., and WALANDER, K. O. T. Aug. 5, 1959 [Aug. 28, 1958], No. 26736/59. Class 4. Aircraft arresting gear comprises a net made of two horizontal supporting wires 4, 5 spaced apart vertically and interconnected by vertically extending ropes 6, the net being suspended between two masts 2, 3, which may be arranged to be raised and lowered, the vertical ropes being of an extensible material such as nylon, and being protected against severence by the sharp leading edge of an aircraft wing, by having intervening portions 8 of a flexible, severance resisting material such as stainless steel, or by having a sheath of braided metal wire, which sheath does not interfere with the extensibility of the ropes.
Patent GB-397314-A (GB)
Title: Improvements in and relating to methods and apparatus for locating ore and the like
IPC: G01V3/08
Filed: 1932-09-27
Abstract: 397,314. Prospecting for minerals. HAUSER & CO., GES., F9, Frauentorstrasse, Augsburg, and OSTERMEIER, J. B., 6, Hans-Sachsweg, Mering near Augsburg, Germany. Sept. 27, 1932, No. 26817. Convention date, Dec. 8, 1931. [Class 37.] Subaqueous metallic deposits or minerals in moist media are located by means of two submerged and electrochemically equivalent electrode materials connected to a galvanometer and resistance compensatory circuits which include a source of potential difference and a separate measuring instrument for balancing any false potential difference created, for example, by thermo-currents or polarization, one of the electrodes contacting with the deposit and forming with a second electrode an electrolytic circuit through the adjacent water or moistened earth. Electrodes 21, 22 are connected to a galvanometer 23 including compensatory circuits 16, 10 provided with separate measuring instruments 14, 18 and a source of potential difference 12. The compensating voltages are applied to balance the electromotive forces due to contact of the electrode with different ores, and also to balance extraneous potential differences. The electrodes may be mounted in close proximity to each other, for example, on a probing stick.