baber/WOPTO huggingface dataset:
Patent GB-340878-A (GB)
Title: Improvements in apparatus for use in grading eggs by weight
IPC: G01G1/18
Filed: 1930-03-15
Abstract: 340,878. Weighing eggs. HORTON, A. B. G., South View Poultry Farm, Felixstowe Road, Nacton, near Ipswich. March 15, 1930, No. 8384. [Class 143. ] An apparatus for use in grading eggs by weight comprises a wooden lever a pivoted on a stand b and provided with three apertures e, f, g, for receiving the eggs during the grading operation whereby the eggs may be graded into special, first, second and third grades.
Patent GB-624591-A (GB)
Title: Improvements in or relating to extending ladders
IPC: E06C1/32
Filed: 1947-03-28
Abstract: 624,591. Ladders. GRAVITY LADDERS, Ltd., and RILEY, F. W. March 28, 1947, No. 8404. [Class 20(ii)]  In an extending ladder in which one part 3 is slidable and guided by brackets 5 on the other part 1 and held in extended position by fall catches engaging the rungs, the two parts may be pivotally connected at the upper ends to serve as a step ladder. For this purpose the part 3 is provided with pins 11, 12 so that when the parts are inclined to one another the pin 12 engages the part 1 and the pin 11 moves along to the outer end of an arcuate slot in a bracket 7 on the part 1. When used as an extending ladder the pin 11 escapes from the bracket 7 by a slot 8. A rubber buffer 13 pivoted to the upper end of the part 3 is adapted to engage the surface against which the ladder is propped.
Patent GB-1182342-A (GB)
Title: Water Softener for Use with an Automatic Washing Machine
IPC: D06F39/00
Filed: 1967-02-22
Abstract: 1,182,342. Dishwashing machines. GENERAL ELECTRIC CO. 22 Feb., 1967 [30 March, 1966], No. 8440/67. Heading A4F. [Also in Division B1] An automatic dishwasher has a wash chamber 12 and dish supporting racks 15 and 16. Spray 24 rotates under the forces created by the liquid ejected and collected liquid is discharged from sump 18 by outlet 23. Heating of water and drying of the articles is accomplished by electric heater 25. The water is softened in ion exchange chamber 30. A solenoid actuated valve controls the cycle of washing, rinsing, drying, softening and regeneration of exchange through the motor 20.
Patent GB-1221416-A (GB)
Title: An improvement in or relating to cement guns
Inventor: MILLAR GERARD
IPC: E04F21/12
Filed: 1967-02-22
Abstract: 1,221,416. Pneumatic conveyers. STEETLEY CHAMBERS Ltd. 22 Feb., 1968 [22 Feb., 1967], No. 8481/67. Heading B8A. [Also in Division E1] A cement gun has pressure vessels 11 and 12 and a hopper 21 whence cementitious material passes through a slide valve 23 and a cone valve 15 to fill both vessels, whereafter valve 23 is closed, the vessels are pressurized and a lower flexibly suspended valve member 31 is raised by air pressure to allow the material to flow through hose 14 to the nozzle (not shown). In the embodiment shown, the lower valve has an upper cone shaped body portion 26 and a frustoconical skirt 39, with a flexible diaphragm 28 carrying the member 31, and may be operated either by venting chamber 35 to atmosphere, or raising the pressure in vessel 10 compared to that in chamber 35, or lowering pressure in chamber 35. The pressure in chamber 35 may be maintained constant, so that the member 31 operates automatically when the pressure in chamber 10 reaches a certain level. The valve assembly 25 could alternatively be supported on a "spider", and the flexible diaphragm downwardly spring-loaded, when it is unnecessary to pressurize chamber 35 at all. Alternatively, the member 31 can be carried by the piston of a pneumatic piston-and-cylinder assembly.
Patent GB-1322137-A (GB)
Title: Electrical capacitors
IPC: H01G13/04
Filed: 1972-02-24
Abstract: 1322137 Capacitors ROBERT BOSCH GmbH 24 Feb 1972 [25 Feb 1971] 8523/72 Heading H1M In a method of manufacturing wound or stacked capacitors including an impregnated paper layer and a layer of synthetic resin which shrinks on heat treatment and/or swells in the presence of the impregnant, the paper is impregnated before being incorporated in the stack or roll and the stack or roll is heat-treated to promote the shrinking and/or swelling of the synthetic resin layers. The capacitor electrodes may be zinc vapour deposited on paper layers or may be self-supporting foils. The synthetic resin may be polypropylene. The impregnant may be hard wax or petroleum jelly and optionally the stack or roll may be further impregnated with mineral oil before the heat-treatment.
Patent GB-345088-A (GB)
Title: Improvements in or relating to controlling the shearing of moving material
IPC: B23D36/00
Filed: 1930-03-17
Abstract: 345,088. Shearing; rolling. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(Morgan Construction Co.; 15, Belmont Street, Worcester, Massachusetts, U. S. A.) March 17, 1930, No. 8535. [Class 83 (iv).] Roller tables.-In a device for cutting into lengths a moving rolled bar, the actuation of flying shears is derived from a measuring roller driven frictionally from the bar. The bar travels from finishing rolls 1, on rollers 2, under a measuring roll 5 to the flying shears 74. When no stock is under the roll 5, an arm 8 rises to close contacts 34, 68, and an electromagnet 28 is energized to clutch a gear 19 to a shaft 11. The measuring roll 5 and a control shaft 18 are then rotated from a main power shaft 25 to eliminate the effect of inertia. When the bar depresses the arm 8, the contact is opened to allow the roll 5 to drive the control shaft 18. When the arm 8 is freed from the stock, an electromagnet 50 is energized to lock a shaft 40 against a stationary armature 55. To effect this, a solenoid 61 is energized by the closing of contacts 64 by a member on the shaft 40 and the contact 68, and this closes a contact 57, 59 to energize the electromagnet 50 and lock the shaft 40. When the arm 8 is depressed, the contact 68 causes de-energization of solenoid 61 and a contact 60 is made to energize the electromagnet 42 which clutches the shaft 36 to the shaft 40. The shaft 40 carries a segment 70 co-operating with the contact 71 for closing circuit through the operating solenoid 7 of the shears 74. After the initial crop cut, the frequency of the cuts is determined by the shaft 40 driven through a belt 16 from the measuring roller. The shears may be manually operated by a lever 82 or switch 83. In order to vary the length of the crop end, the contact 71 may be adjustable. Variation of the lengths cut is obtained by shifting the belt 16 or by a dynamo arrangement, Fig. 10, not shown.
Patent GB-205024-A (GB)
Title: Improvements in braces for personal wear
IPC: A41F3/00
Filed: 1923-03-27
Abstract: 205,024. Howie, F. March 27, 1923. Braces.-In braces of the kind in whieh the shoulder straps and front and rear tabs are formed exclusively of sheet rubber the shoulder straps 2 and rear tabs are formed in one piece and the front tabs 3 are perforated to engage the pins 5 of buckles 6 on the front ends of the shoulder straps. The straps and tabs are formed with a heading 8 and the rubber is thickened at the button-holes.
Patent GB-1095940-A (GB)
Title: Reversible plough attachments
IPC: A01B3/42
Filed: 1965-03-01
Abstract: 1,095,940. Reversible ploughs. W. EBERHARDT, D. EBERHARDT and A. EBERHARDT [trading as GEBRœDER EBERHARDT]. March 1, 1965 [April 17, 1964], No. 8711/65. Heading A1B. A reversible plough for attachment to a three point linkage is provided with a rotatable beam 8 mounted in a housing 7 which is pivotally mounted by a pin 6 on a frame 1, a link 11 being connected by means of a lever 14 to a bearing member 13 attached to the frame 1. As the plough is raised it pivots downwardly, the load of the plough acting upon the bar 11 to swivel the lever 14 to rotate the plough beam 8 when the joint 12 is swivelled out of a dead centre position which locks the lever in place when working. The joint is swivelled out by means of a lever 32 operated by hand or by a stop 33 which contacts the upper link 5 as the plough is raised.
Patent GB-1493832-A (GB)
Title: Brakes
IPC: B60T7/20
Filed: 1975-01-03
Abstract: 1493832 Internal shoe drum brakes for trailers L C CHOUINGS 3 Jan 1975 [28 Feb 1974] 08731/77 Divided out of 1493831 Heading F2E The brake includes torque-limitation means providing a clearance which is reduced or eliminated when braking occurs with the drum rotating in one direction, R, but which is maintained when braking occurs with the drum rotating in the opposite direction F. A lever 61 is pivoted on a pin 62 fixed in relation to the back plate 58; the lever is urged against a stop 65 (one side of a fixed pin 64) by a spring 72 connected between the upper end of the lever and shoe 54. Shoe 55 engages the lever at 71, and shoe 54 at 69. When the drum is rotating in the forward direction F and the brake is applied by a floating actuator 51, spring 72 and shoe 54 both hold the lever in the position shown, so the lower end of shoe 55 remains in the position shown, with a clearance 67 between a end of a slot 63 in lever 61 and a second stop 66 (the other side of pin 64) being maintained. For brake application in the reverse direction, R, of drum rotation, the force of shoe 55 acting at a greater radius about pivot 62 than the force of shoe 54 overcomes the latter force and that of the spring 72, so lever 61 pivots, and clearance 67 substantially eliminated. Hence the lower ends of the shoes move closer together while the upper ends move further apart. Travel of the service actuator is limited, so braking torque is minimal during reverse rotation (e.g. on reversing the trailer on which the brake is mounted). A parking brake actuator (not shown), with greater travel, serves to take up the clearance and apply the shoes when the trailer is stationary.
Patent GB-629108-A (GB)
Title: Improvements in or relating to radio mirrors
IPC: H01Q19/12
Filed: 1946-03-21
Abstract: 629,108. Aerials ; wave-guides. RUST, N. M., and GREGORY, M. C. March 21, 1946, No. 8811. [Class 40 (vii)] A mirror arrangement for the transmission or reception of radio waves comprises, attached to a mirror surface M, a series of partition plates W, spaced apart by more than a half wavelength, and extending in the direction of the electric vector. As used for transmission, the plates W, in the embodiment shown, are attached to a plane mirror and act as short lengths of wave-guide, thereby altering the phase velocity of the incident radiation from the wave-guide horn P so. that the reflected waves are co-phasal in a predetermined plane. Thus a sharply directive beam is obtained. The mirror is positioned slightly asymmetrically with respect to the horn P so that the reflected beam is not obstructed. To economize in metal, whenever the plates W exceed a certain depth they are stepped back sufficiently to cause the reflected waves from the steppedback portion to be a wavelength out of phase with those from the central portion, i.e. to cause the two sets of waves to be effectively in phase. As shown, the mirror and the plates comprises continuous metal sheets ; however, they may be made of netting or gauze. The space between the plates may be filled with dielectric material, both to modify the velocity of the waves between the plate and to strengthen the structure. A further series of plates, called " baffle plates," may be provided at right-angles to the plates W. Specification 629,107 is referred to.
Patent GB-165441-A (GB)
Title: Improvements in apparatus for the production of lath mats and the like
IPC: B27J1/00
Filed: 1921-03-22
Abstract: 165,441. H÷ntsch & Co. June 24, 1920, [Convention date]. Twisting wires together.-In machines for making slat and lath fabrics wherein the slats are secured to stout longitudinal wires by thinner binding wires twisted round them, the longitudinal wires 1 pass through gear-driven spindles 2 provided with arms 3 forked to engage the shafts 4 of reels of binding wire 5, rotation of the spindles 2 thus serving to bind the slats 6 to the longitudinal wires. Positioning of the slats on the longitudinal wires is facilitated by pivoting the reel carriers so that they can be rocked by hand or 'automatically into the position shown in dotted lines prior to the introduction of the slats.
Patent GB-617424-A (GB)
Title: Improvements in or relating to apparatus for converting a direct potential into an alternating potential
IPC: G01K7/02
Filed: 1946-03-21
Abstract: 617,424. Electric control systems. JOHNSON, D. C. March 21, 1946, No. 8833. [Class 40 (i)] [Also in Group XXXV] In apparatus responsive to the polarity of a direct potential which is connected across a coil wound on part of a magnetic circuit, the reluctance of which is cyclically variable at a steady frequency, a discriminating relay compares the phase of the A.C. induced in the coil with that of a standard A.C. of the same frequency. In a system for measuring or using the temperature registered by a thermocouple 1, the thermocouple terminals 2, 3 are connected to a circuit comprising a choke 6, a potentiometer 7, and a coil 5 wound on a high permeability core 4. A horseshoe core 10, which completes the magnetic circuit of coil 5, is rotated by a synchronous motor 11 at half the frequency of the supply current which is also fed through a transformer 20 to anodes 17, 18 of two triodes. The reluctance of the magnetic circuit of coil 5 thus varying cyclically twice in each revolution of core 10, A.C. of the supply frequency is induced in the coil circuit and the A.C. volts produced across choke 6 are applied through a valve amplifier 14 to grids 15, 16 of the triodes. In one triode, the potentials of grid and anode are in phase and in the other they are 180 degrees out of phase. The phase of the grid volts is determined by the direction of current in the thermocouple circuit, and as the thermocouple is initially balanced against the voltage of potentiometer 7, it depends upon whether the thermocouple temperature is above or below the datum. Thus, one or other of the triodes will conduct according as the temperature is above or below datum, and the magnitude of the anode current will be proportional to the A.C. volts and therefore to the D.C. volts of the thermocouple and thus to the temperature. If 21, 22 are coils in a differential ammeter or a split field motor, the temperature may be indicated or used to control mechanism. The residual magnetism in core 10 produces an A.C. having a frequency of half the supply frequency superimposed on the other A.C. Since this means that each grid voltage varies similarly with respect to the anode volts, each valve is rendered conductive by the residual magnetism effect to the same extent during each full cycle of the main A.C. so that it produces no effect in the differentially wound ammeter or motor. Choke 6 may be replaced by a resistance or transformer, or a second coil may be wound on core 4.
Patent GB-293333-A (GB)
Title: Improvements in portable spirit and like lamps or stoves
IPC: F24C5/20
Filed: 1927-03-31
Abstract: 293,333. Emanuel, L. B. March 31, 1927. Portable spirit stoves.-In a portable spirit lamp or stove, e.g., for heating curling irons and adapted to burn solid volatile fuel, the hearth or burner 6 for the fuel is formed or arranged in or on the upper surface of the hollow stove body, which latter may thus be used for carrying reserve fuel. In Figs. 1 and 2 a hollowed top 1 is formed with a flanged opening in which an asbestos &c. tray 7 serving as burner rests on wire gauge 8, above a pad of absorbent material 1a. An external drawer 10 constitutes the container for reserve fuel. The usual hinged cover with tong supports 3 and a snap hasp 4 forming also a supporting leg is provided. The pad 1<a> allows the use of liquid fuel on removal of the tray 7. Figs. 4, 7, and 9 illustrate modifications, the upstanding sides of the drawer 13 being housed within the top 1 in Fig. 4, while in the other two forms the hollow base 1 carries a flat top with recess for the burner-sliding in Fig. 7 and hinged in Fig. 9.
Patent GB-1237596-A (GB)
Title: Web guiding apparatus
IPC: D06B17/02
Filed: 1969-02-19
Abstract: 1,237,596. Steam-treating webs. ARTOS DR.-ING. MEIER-WINDHORST K.G. 19 Feb., 1969 [20 Feb., 1968], No. 8912/69. Heading D1L. A textile web in a sealed steam-treatment chamber is passed in a loosely folded condition through a U-shaped guide path, the base of which comprises driven supporting rollers, and thence through a spreading device and past means for regulating the tension of the web, including a pair of web guides. The guide path may be provided with lateral guides and/or devices for supporting the middle part of the web. A heating zone may be provided upstream of the guide path and a steam-tight transition device may be provided at the outlet of the chamber. Two or more adjacent webs may be treated, additional web guides and an adjustable spreading device being provided. As shown, a web 1 is passed via an entry lock 2 of a steam treatment chamber 3, a preheating zone 4, a folding device 5 and stationary walls 6 (between which the web is piled up) to a U-shaped guide path having lateral guides 8 and, the base of which is formed by driven supporting rollers 9 and at the entrance to which the folded web is centrally supported above and below by a movable rail 7 and a stationary stressed strap 11 respectively. The web is then passed via a spreading device 12, tension regulating means 13, a pair of web guides 15 and a steam-tight transition device 16 to a washing device 17.
Patent GB-1448852-A (GB)
Title: Plant growth inhibiting diamino-5-nitropyrimidines
IPC: C07D239/50
Filed: 1973-11-15
Abstract: 1448852 4,6 - Diamino - 5 - nitro - pyrimidines CIBA-GEIGY AG 15 Nov 1973 [16 Nov 1972] 8912/75 Divided out of 1448851 Heading C2C Novel compounds are the free amines of Formula I and their acid addition salts: wherein R 1  represents an unsubstituted or cyano or hydroxy-substituted C 1-6  alkyl group, a C 2-5  alkenyl group or a cycloalkyl group optionally substituted by methyl or ethyl; each of R 2  and R 3 , which may be the same or different, represents hydrogen or C 1-6  alkyl; R 4  represents C 2-6  alkyl or cycloalkyl optionally substituted by methyl or ethyl; and R 5  represents methoxy, dimethylamino, trihalomethyl or C 1-4  alkyl. The compounds of Formula I are prepared by reacting, in the presence of a stoichiometric amount of acid acceptor, a corresponding compound of Formula II: with the stoichiometrically equivalent quantities of amines of formula HNR 1 R 2  and/or HNR 3 R 4 . Compounds of Formula I in which R 5  represents a methoxy group are also obtained by reacting a corresponding 2-alkylthiopyrimidine with a methanolate in the presence of a solvent or diluent at 0-130 C. The starting materials and intermediates of formula in which B is Cl, A is Ce, C 2 H 5 NH, 3-pentyl- NH, sec-C 4 H 9 -NH, or i-C 3 H 7 -NH and C is H, Cl, CH 3  or CH 3 S are also prepared and are stated to be novel. The compounds of Formula I possess plant growth inhibiting and herbicidal properties.
Patent GB-685646-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23Q3/00
Filed: 1950-04-12
Abstract: 685,646. Electrode ignition of oil burners. BUGGY, C. W. April 12, 1950, No. 8977/50. Class 75(iii) In a high tensior ignition system for oil burners comprising a pair of rod electrodes situated ir the high temperature zone and adap. ted to be moved relatively to each other by an electromagne to form a spark gap of predeterminec length simultaneously with the energizing of the electrodes, the rods converge towards their tips and the tips are normally ir overlapping contac ting relationship whereby the relative movement of the rods removes carbonaceous deposit on the tips. One electrode holder 4b is formed integral with a bracket 12 supporting a pressure jet burner 24 in an air duct 2; the other electrode holder 4a is fixed to the end of a spindle 6 which is rotatably mounted in bearings 15, 16 outstanding from the burner supporting bracket 12 and which is adjustably secured by a screw 5a to the armature 5 of an electromagnet 1 also mounted on the burner supporting bracket. A coil spring 7 secured to the bearing 16 and to an adjustable collar 8 on the spindle 6 returns the movable electrode to overlapping contacting relationship with the fixed electrode when the electromagnet is de-energized, the return movement being stopped by the armature abutting an adjustable member 9 fixed to the burner supporting bracket. The electromagnet may comprise a single coil of oval or flat form mounted with its smallest surface facing the air flow; it may be mounted on a platform level with the electrode holders in which case the movable holder is formed as a swivelling clamp directly connected to the armature. The construction may be modified so that both electrodes move. The electric supply to the electromagnet is taken directly or through a step-down transformer from the primary side of the ignition or intermittent transformer 22.
Patent GB-399180-A (GB)
Title: Printing machine to produce transfers from engraved rollers
IPC: B41F22/00
Filed: 1932-03-29
Abstract: 399,180. Rotary printing-machines. PARR, J., Ellgreave Street, Burslem, and DALE, F. W., 19, Dimsdale View, Porthill, both in Stoke-on-Trent. March 29, 1932, No. 8979. [Class 100 (ii).] In a machine for producing transfers from ar engraved copper roller b, tissue or like paper m<1> is fed from a roll m between the roller b and ar impression roller f by means of an endless belt h of flannel, or of a material having a face of flannel or the like, the belt receiving a coating of printer's size, or similar fluid, from a bath p through which it passes. Rollers u remove surplus size, and rollers s press the paper m<1> and the belt h into contact prior to the impression. The roller b is inked by an adjustable roller e and is fitted with a scraper wand a receptacle y for receiving surplus colour. A gravity roller j maintains the belt h in tension. The roller b is driven from a shaft d<1> by a belt d<2> and pulley d. The printed material is dried by a heated tray t or Z, and is then cut into transfers.
Patent GB-934705-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J5/00
Filed: 1960-03-14
Abstract: The invention comprises 3a ,11a ,17a -trihydroxy-16a -methyl-pregnan-20-one, the 20-ethylenedioxy derivative thereof and the preparation thereof by reacting a 3-acyloxy-16b -methyl-16a ,17a -epoxypregnane-11,20-dione having a protected 20-ketone group, with lithium in the presence of an aliphatic amine having 1-6 carbon atoms, thus bringing about simultaneous severance of the 16,17-epoxide link, inversion of the steric position of the 16-methyl group, reduction of the 11-ketone group and saponification of the 3-acyloxy substituent, so as to form 3a ,11a ,17a -trihydroxy-16a -methyl-pregnan-20-one, the ketone group of which is protected, liberating the 20-ketone group thereof to yield 3a ,11a ,17a -trihydroxy-16a -methyl-pregnan-20-one and oxidising selectively the 3a -hydroxy group of this latter compound.  As aliphatic amine, methylamine may be used.  Oxidation may be effected with N-bromosuccinimide.  Specifications 874,780, 934,701 and 934,703 are referred to.
Patent GB-769205-A (GB)
Title: Improvements in or relating to coat hangers
IPC: A47G25/44
Filed: 1954-03-27
Abstract: 769,205. Coat and like hangers. ELSTON, E. P. March 28, 1955 [March 27, 1954], No. 9022/54. Class 52 (5). In a coat and like hanger the upper part of the yoke slopes downwardly from back to front to prevent creasing of the suspended garment. As shown, the yoke is formed by a strip 5 of metal, bent to triangular shape, and a suspension hook 10 rotatably mounted in the overlapped ends 6, 7 which are secured by rivets. The yoke slopes downwardly from the back edge 13 to the front edge 14 and has a rubber etc. tubular covering 15. Slidable, wire extension members 16 have ends 17, 18 held to the sides of the strips 5 by embracing members 19.