baber/WOPTO huggingface dataset:
Patent GB-200029-A (GB)
Title: Improvements connected with hooks for use with lifting tackle and the like
IPC: B66C1/36
Filed: 1922-12-23
Abstract: 200,029. Hertz, A. H., and Morgan, T. Dec. 23, 1922. Hooks, safety and closed.-A hook for use with lifting tackle &c. designed to prevent fouling when unloading ships &c., of the type in which the shackle is provided with an extension which moves the hook and wherein the extension is provided with a recess which engages the end of the hook, comprises a hook 5 with an extension 10 which engages a recess 9 in an integral extension 7 of a shackle 6 to lock automatically the hook when tension is applied to the shackle. The hook 5, which is pivoted at 8, is provided with an elongated pivot hole to facilitate the locking engagement of the members. In a modification, the shackle 6 is provided with a sliding pin, instead of the upper curved portion, to facilitate coupling.
Patent GB-1291622-A (GB)
Title: A railway car and means for opening and closing a door thereof
Inventor: JAEKLE WILLIAM MATTHEW
IPC: B61D47/00
Filed: 1970-07-20
Abstract: 1291622 Operating rail vehicle cargo doors W M JAEKLE P V GARIN W E THOMFORD W M GREB N N UDALOFF and S H PEERY JNR 20 July 1970 [15 Aug 1969] 35102/70 Heading B7L The cargo doors 16 of a rail vehicle 10 which are pivoted at their lower ends to the floor 14 and adapted to carry automobiles 22, are operated by a fork 42 mounted on a truck 40, each prong of the fork being adapted to enter a slot 28, 30 of the door and by manoeuvering of the truck and adjusting the height of the fork the door may be opened or closed. The fork ends are triangular in shape to prevent them leaving the slots except at the ends 36, 38 or through openings 32, 34. Further, the rollers on the fork ends assist in their movement along the slots. In the locked position of the doors, a rod 98 extends through an aperture 110 in the vehicle roof and abuts a lever 112 which by means of rods 86 and 74 causes a pivoted block 72 to adopt an out-of-use position. To unlock the door the fork is introduced into the slots through openings 32, 34 and caused to abut trip member 90 which by means of levers 92, 94 and 96 withdraws the rod 98 from aperture 110. With the rod withdrawn and lever 112 free to pivot, a spring 88 acts on rod 86 causing the block 72 to be pivoted on to the slot whereby the fork cannot be withdrawn from the slots without the bolt 98 again entering the aperture.
Patent GB-441734-A (GB)
Title: Improvements relating to liquid immersed electric circuit breakers
IPC: H01H33/92
Filed: 1934-12-06
Abstract: 441,734. Liquid - blast switches. FLURSCHEIM, C. H., Rushmoor, Fleet, Hampshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Dec. 6, 1934, No. 35120. [Class 38 (v)] A cross-jet, liquid - immersed, circuit-breaker has means whereby both an impulse jet and an arc-generated jet are produced across the path of the movable contact in breaking circuit, the impulse and arc-generated jets being effective for breaking small and large currents, respectively. The liquid may be oil or carbon tetrachloride. In a single-break switch as described in Specification 435,143, the arc drawn on separation of the contact 6 from contact 7 produces pressure in space 11 to drive liquid through a passage 12 across one or more passages 9, and simultaneously an impulse jet is forced from space 14 through passage 13 and across passages 8, the passages 8, 9 being separated by partition 10 and having either separate outlets or a common outlet 15, as shown. The impulse jet may be produced by the mechanism described in Specifications 435,143 and 435,419.
Patent GB-605542-A (GB)
Title: Improvements in and relating to pistons for small hand pumps or sprays
IPC: F16J1/00
Filed: 1945-12-29
Abstract: 605,542. Pistons for pumps. GAME, C. Dec. 29, 1945, No. 35161. [Class 122 (i)] In a small hand pump of the type that is fitted to a container and liquid is drawn through a valve in the pump cylinder and delivered through the tube d that forms the piston-rod, the piston is formed of discs c of cork, leather, &c. gripped between nuts h, j. The underside of the nut h, which is screwed hard on to the rod, is provided with recesses or projections i against which the upper disc c is pressed by the lower, nut j so that the piston can be rotated without unscrewing the nuts.
Patent GB-952515-A (GB)
Title: Improvements relating to flexible metal hoses
IPC: F16L11/15
Filed: 1961-09-29
Abstract: 952,515. Making tubes; tube expanding; drawing. CALUMET & HECLA Inc. Sept. 29, 1961 [Oct. 12, 1960], No. 35320/61. Headings B3A, B3J and B3P. [Also in Division F2] In a method of making a flexible metal hose comprising three concentric metal tubes in contact of which the middle tube is of a metal having a lower coefficient of restitution than the metal of either of the other two tubes, the three tubes, each of uniform cross-section, are telescoped together and are subsequently operated on so that similar annular or helical corrugations are formed in the three tubes simultaneously. As shown, the three tubes may be drawn through a die 58 having an expander plug 62 concentric therewith to force the three tubes into contact. Alternatively the tubes may be forced into contact in two separate stages, first by an expander plug and second by pulling the tubes through a die. The hose is thereafter helically corrugated in known manner by four corrugating rings or dies 64, 66, 68, 70. Specification 939,418 is referred to.
Patent GB-502507-A (GB)
Title: Improvements relating to dragline excavating
IPC: E02F3/58
Filed: 1937-12-24
Abstract: 502,507. Excavators. WHITTOME, K. A. Dec. 24, 1937, No. 35736. [Class 68 (i)l . In a dragline excavator, a boom 1, comprising a bent girder reinforced by web plates 2, is secured to one side of the underframe of the excavator and carries a pulley 9 over which the drag line 10 is deflected so that the drag bucket 12 may be moved longitudinally of a dyke &c. to one side of the excavator. The boom may be pivoted to the underframe so that it may be folded against the latter ; in this case, the outer end of the boom may be bent downwardly.
Patent GB-1216793-A (GB)
Title: Improvements in or relating to ignition coils
Inventor: FRITSCH ZDENEK
IPC: H01F38/12
Filed: 1969-07-16
Abstract: 1,216,793. Ignition coils. PAL-MAGNETON, NARODNI PODNIK. 16 July, 1969 [19 July, 1968], No. 35739/69. Heading H1T. The casing 1 of an ignition coil 2, which also forms the outer part of the magnetic circuit of the coil, is made of a mixture of an insulating material and a filling of a granular ferromagnetic material dispersed throughout the insulating material.
Patent GB-901348-A (GB)
Title: Improvements in or relating to braces and guard rails for scaffolding
IPC: E04G1/00
Filed: 1957-11-16
Abstract: 901,348. Scaffolding. BURTON, J. Nov. 17, 1958 [Nov. 16, 1957], No. 35766/57. Class 20 (2). [Also in Group I] A brace for scaffolding has at each end an openended slot adapted to be engaged transversely with a stud 14 on a scaffold upright 10 and has lugs 18 at the mouth of the slot adapted to engage the nut 15 when in brace-retaining position to prevent removal but adapted to clear the nut when it is slacked off. The nut may be substituted by a retaining member pivoted to the end of the stud.
Patent GB-749487-A (GB)
Title: Improvements in and relating to automatic vision gain control for television receivers and like apparatus
Inventor: WHITE ROBERT CYRIL
IPC: H04N5/53
Filed: 1953-12-23
Abstract: 749,487. Automatic gain control. WHITEIBBOTSON, Ltd. Oct. 5, 1954 [Dec. 23, 1953], No. 35774/53. Class 40 (5). In a receiver for positively-modulated television signals, positively-going synch. pulses are taken from a resistor R1 in the cathode circuit of a synch. separator V1 and are amplified in a valve V2. Negative-going synchpulse appear in the anode circuit of valve V2 and are differentiated by an R.C. network C2, R4. The resulting train of pulses comprises alternate negative- and positive-going " spikes " corresponding respectively to the leading and trailing edges of the synch, pulses. The tips of the negative-going " spikes " are restored to a fixed level by a D.C. restoring diode V4 and the pulse train applied to the grid of a valve V3. The valve V3 is so biased by a cathode resistor network R5, R10, R11 that conduction is caused by only the more positive part of the positive-going " spikes " in the pulse train. The resulting train of negative-going pulses in the anode circuit of the valve V3 is rectified by a diode V5 and smoothed by R.C. network R6, C4 to give a negative D.C. voltage which comprises the A.G.C. control voltage. A fixed positive bias may also be applied to the controlled valves by means of resistor R7. " Hunting " is prevented by shunting the A.G.C. line with a network comprising resistor R9, shunt rectifier V6 and condenser C6. The cathode bias resistor R5 may be variable and used as contrast control.
Patent GB-873628-A (GB)
Title: Improvements in a base support for a fire hose nozzle stand
IPC: A62C31/28
Filed: 1957-11-18
Abstract: 873,628. Nozzle stand supports. McINNES, J. M. Nov. 18, 1958 [Nov. 18, 1957], No. 35776/57. Class 47. A base support for a fire hose nozzle stand comprises a carrier plate 10, Fig. 3, having one fixed and two independently pivotable legs 15, 12 and at least two upstanding spigots 11, there being locking means whereby the two pivotable legs may be secured in an outspread position. The legs 12 are pivoted on pins 13 which can be moved into any of the holes 14, a leg being locked in the outspread position by a drop pin 17 engaged through an appropriate hole 18. The ground spikes 19, Fig. 1, can be adjusted vertically and locked by the screws 20 and the leg 15 has a telescopic extension, carrying a claw 22, which may be locked in a desired extension by a screw 21. The base support may be secured by lashings attached to an eyebolt 23. The spigots 11 may support a fire hose nozzle stand as described in Specification 732,106.
Patent GB-367906-A (GB)
Title: Improvements relating to thermometers, pressure gauges and like indicators for industrial purposes
IPC: G01K1/06
Filed: 1930-11-28
Abstract: 367,906. Liquid-in-tube indicators. GILLIES, D., Braeside, Parkhill Road, Bexley, Kent. Nov. 28, 1930, No. 35876. [Class 97 (iii).] An attachment for illuminating thermometers, pressure gauges, and like liquid-in-tube indicators, having the indicating tube enclosed in a casing with front and back walls of glass, comprises an openfronted channel shaped housing containing an electric lamp and adapted to be removably attached to the rear of the indicator casing by pin and slot or equivalent means. In the form shown, the detachable housing 3, 4 having a socket 8 for an electric lamp, is secured to the thermometer casing 1 by a pin 11 and the engagement of a slot 13 with a pin 14 on the casing. The housing may have a lamp in each end piece 4 and may include a reflector 15 for directing the light on to the scale marked on transparent or translucent glass 2. According to the Provisional Specification the lamp housing may be hinged to or formed integrally with the indicator casing.
Patent GB-448802-A (GB)
Title: Improvements in photographic stripping films
IPC: G03C1/805
Filed: 1934-12-15
Abstract: The water permeable layer of a stripping photographic film comprises a cellulose aliphatic acid ester having a low acyl content. Cellulose acetate with an acetyl value of 33--36 per cent is most practical.  Cellulose acetate propionate hydrolyzed to a content of 26 per cent acetyl and 4--5 per cent propionyl may also be used.
Patent GB-793099-A (GB)
Title: Improvements in packing arrangements for shafts passing through housings
Inventor: CROSS ROLAND CLAUDE
IPC: F16J15/56
Filed: 1956-11-26
Abstract: 793,099. Stuffing-box substitutes. CROSS MANUFACTURING CO. (1938), Ltd. Nov. 26, 1956, No. 36080/56. Class 122 (5). A packing arrangement for a piston-rod 8 or other shaft entering a cylinder 2 containing fluid under fluctuating pressure comprises a transverse wall 3 sealingly engaging the rod and an adjacent low-pressure chamber 4 sealed against external leakage along the rod by packing 6, and communicating with the cylinder 2 through a non-return valve 11 by which pressure build up in the chamber 4 due to leakage between the rod and the wall 3 is relieved by returning fluid to the cylinder during a lowpressure phase therein. The bore in the wall 3 may be lined with white-metal and the packing 6 may include a rubber ring 7.
Patent GB-787155-A (GB)
Title: Improvements in machines for producing filter mouthpiece cigarettes
IPC: A24C5/47
Filed: 1955-12-16
Abstract: 787,155. Cigarette-making machines. KÍRBER, K. Dec. 16, 1955 [April 29, 1955], No. 36117/55. Class 130. Pairs of cigarettes 5, 5<SP>1</SP>, and interposed mouthpieces 6 in grooves 3 on a drum 4 are pressed together by discs 7, 7<SP>1</SP>, supported by radially arranged springs 9, 9<SP>1</SP> and deflected towards the drum by rollers 10, 10<SP>1</SP>. The springs 9, 9<SP>1</SP> are connected to rings 8a, 8a<SP>1</SP>, adjustable axially on members 8, 8<SP>1</SP>, and the inner faces of the rings 7, 7<SP>1</SP> may be chamfered, Fig. 3, so that they are parallel to the end faces of the cigarettes 5, 5<SP>1</SP>, when in contact therewith. The springs 9, 9<SP>1</SP> may be replaced by similarly arranged blade springs, rubber pads, or diaphragms. Specification 767,275 is referred to.
Patent GB-1184623-A (GB)
Title: Hydrazine Sensing Cell.
IPC: H01M8/04
Filed: 1968-07-29
Abstract: 1,184,623. Hydrazine fuel cells. UNION CARBIDE CORP. 29 July, 1968 [8 Aug., 1967], No. 36119/68. Heading H1B. [Also in Divisions G1 and G3] The invention relates to monitoring and controlling the hydrazine concentration in the electrolyte of a fuel cell by a sensing cell, located in the electrolyte circulating system to the main fuel battery structure, and comprising a fuel cell with a main cathode and anode 14, 18, connected to a load 10 and an auxiliary anode 16 connected through, e.g., a contact millivoltmeter to the main anode. The contact millivoltmeter is connected to a relay circuit (not shown) controlling the hydrazine-injectionsolenoid-valve. To increase the accuracy of the measurement, the load and voltmeter may be connected alternately by a vibrator to obviate the resistance drop in the electrolyte due to load current Fig. 3 (not shown). Cell construction.-The anodes may be porous nickel, coated with catalytic materials, e.g. noble metals, nickel boride, cobalt boride, or a porous material coated with a mixture of palladium with rhodium and/or platinum. The auxiliary anode is separated from the cathode by a spacer 12, e.g. of asbestos. A pair of spaced cathodes may be used to reduce the cathode current density, Fig. 6 (not shown). In an alternative circuit. Fig. 5 (not shown), using an external power supply, load current is circulated through the cell in half-wave pulses, from a power pack (32), and the meter is connected through half-wave diode gates (42, 44) instead of using a vibrator.
Patent GB-1124102-A (GB)
Title: Substituted 3,4-dihydro-2-benzothiopyrans and a process for the preparation thereof
IPC: C07D335/06
Filed: 1965-08-23
Abstract: Compounds of the general formula (I) <FORM:1124102/C2/1> (wherein n is 1-6; R1, R2, R3 and R4 are each hydrogen, chloro, bromo, iodo, fluoro, trifluoromethyl, C1- 8 alkyl, C1- 8 alkoxy, phenyl, phenoxy, benzyl or C5- 7 cycloalkyl radicals; R5 and R6 are each C1- 8 alkyl, C2- 8 alkenyl, C2- 8 alkynyl, phenyl, phenyl-(C1- 8 alkyl) or C3- 7 cycloalkyl, or when taken together with -N<, constitute a heterocyclic group; and X is oxygen or sulphur) and their acid addition salts are prepared by reacting a compound of the formula (II) <FORM:1124102/C2/2> in an inert organic solvent with about one equivalent part of a compound of the formula (III) <FORM:1124102/C2/3> (wherein Z is chloro, bromo or iodo), optionally followed by salt formation.  The starting materials of formula (II) are prepared by converting a benzyl halide of the formula <FORM:1124102/C2/4> to the toluenethiol of the formula <FORM:1124102/C2/5> which is reacted with an a -halophenylacetic acid of the formula <FORM:1124102/C2/6> in the presence of a base and an inert solvent at reflux temperature to produce the benzylthiophenylacetic acid of the formula <FORM:1124102/C2/7> which is converted to the acid chloride and cyclized. a -(m-Methoxybenzylthio)phenylacetic acid is characterized as the hydrated sodium salt.  The preparation of compounds of the formula <FORM:1124102/C2/8> is described; these compounds are used to prepare the starting materials of formula (III).  The compounds of the invention are oral antifertility agents, and may be administered in the form of pharmaceutical preparations containing them together with a carrier.
Patent GB-423300-A (GB)
Title: Improvements in bearings for slides and the like
IPC: F16C29/04
Filed: 1933-06-29
Abstract: 423,300. Rectilinear-motion bearings. HARLEY, S. J., Long Bend, Old Leamington Road, Stivichall, Coventry. June 29, 1933, No. 36213/34. Divided out of 422,123, [Group XXIII]. [Class 12 (i)] A slide 29 is mounted between parallel ball bearings 30 whose outer races 31 are tapered and longitudinally adjustable to take up slack. The adjustment may be effected by screws 32, and by moving each race 31 equally the centring of the slide may be preserved. The invention is more particularly applicable to slides used in grinding machines for carrying the wheel-trueing or forming tool, or the work-piece.
Patent GB-902386-A (GB)
Title: A process for stabilising chlorine-containing polymers
IPC: C08K5/49
Filed: 1960-10-21
Abstract: Chlorine-containing polymers are stabilized by incorporating therein a stabilizer of formula <FORM:0902386/IV(a)/1> in which X is oxygen or sulphur and R, R1 and R2 each represent an organic radical bonded to the phosphorus atom by an oxygen, nitrogen or carbon atom. Specified stabilizers include diphenyl phosphoric acid hydrazide, diphenyl thionophosphoric acid hydrazide, di(p-chlorophenyl) phosphoric acid hydrazide, di(p-chlorophenyl) thionophosphoric acid hydrazide, di(p-isododecylphenyl) thionophosphoric acid hydrazide, phenyl phosphoric acid dihydrazide, phenyl thionophosphoric acid dihydrazide, biphenyl-4-thionophosphoric acid dihydrazide, p-cyclohexylphenyl thionophosphoric acid dihydrazide, p-methylphenyl phosphoric acid dihydrazide, p-tert. butylphenyl thionophosphoric acid dihydrazide, p-chlorophenyl phosphoric acid dihydrazide, 2-chloro-5-bromophenyl thionophosphoric acid dihydrazide, b -naphthyl phosphoric acid dihydrazide, b -naphthyl thionophosphoric acid dihydrazide, 2,4,5-trichlorophenyl methylamido thionophosphoric acid hydrazide, diethylamido phosphoric acid dihydrazide, dibutylamido thionophosphoric acid dihydrazide, cyclohexylamido thionophosphoric acid dihydrazide, cyclohexyl phosphoric acid dihydrazide and 4-chlorophenyl thiophosphoric acid dihydrazide.  The stabilizers may be used in admixture with known stabilizers, e.g. a -phenylindole. Examples describe the stabilization of (1 to 7) polyvinyl chloride, (8) polychlorobutadiene, (9 and 10) a vinyl chloridevinyl acetate copolymer, and (11 and 12) mixtures of polyvinyl chloride and chlorinated polyethylene.
Patent GB-876964-A (GB)
Title: Improvements in structural members and in methods of forming junctions between such structural members
IPC: F16B43/00
Filed: 1957-11-21
Abstract: 876,964. Structural members and joints. ALKONO A. G. Nov. 21, 1957 [May 15,1957], No. 36367/57. Class 20(2) [Also in Groups XXII and XXV] A structural member comprises, in crosssection, two C-shaped parts 3 having inwardly turned flanges 9 on one face of a web 48. As shows there are two parallel webs 48 which are joined by flanges 18 extended on each side to form in co-operation with central flanges 19 four C-section parts 3. The flanges 19 may be joined by a bridge 19a. Two such structural members are joined at right angles by a bolt 6 the head 13 of which seats on a washer 7 engaging in the ends of slots 11 in the webs of one member, the bolt passing between the webs to engage a nut 5 which has been engaged under flanges 9 of the second member.
Patent GB-844990-A (GB)
Title: Improvements relating to firearms
IPC: F41A9/42
Filed: 1958-11-12
Abstract: 844,990. Firearms; ramming mechanisms. BOFORS A. B. Nov. 12, 1958 [Dec. 14, 1957], No. 36373/58. Class 92. In a firearm a ramming lug 12 Fig. 1 actuated by spring means (not shown) is cocked by a buffer 4 on a cross-bar 3 Figs. 1, 3 adapted to slide in grooves 2 in a non-recoiling frame 1, the ends of the cross-bar being provided with oblique bearing surfaces 5 for co-acting with oblique surfaces 6 on bars 7 fixed to the recoiling parts of the firearm. The arrangement is such that the cross-bar 3 is urged to tilt during the cocking movement as shown in Fig. 3 but can only tilt when it reaches oblique widened portions 15, 16 of the grooves 2, in which position the ramming lug 12 has been cocked. The crossbar also slides on two rods 8 having forward stops 9 and springs 14 which urge the cross-bar forwardly. In the tilted position the bars 7 with the faces 6, 5 no longer abutting, can move further rearwardly without the cross-bar partaking of this movement. During run-out, the ends of the cross-bar 3 will first rest against the sides of the bars 7 as shown in Fig. 3, the spring 14 will then tilt the cross-bar causing the surfaces 5, 6 to abut and move the cross-bar back to the initial position. The rear ends of the rods 8 are pivotally connected to levers 10 fixed to a shaft 11 supported in the brush casing 17 Fig. 4 mounted for elevation about a pivot 18. A guide rail on the mounting 19 is curved about a centre 21 and a roller 23 carried by a lever 22 on the shaft 11 bears against the rail. Because of the position of the centre of curvature 21 in relation to the pivot 18, the roller 23 will move rearwardly in relation to the shaft 11 when the elevation of the firearm is increased. This will cause the rods 8 and the stops 9 to move forwardly and permit an increased ramming movement of the lug 12, thus providing the necessary greater amount of energy for ramming the round in the elevated position.
Patent GB-912612-A (GB)
Title: Improvements in signal lamps
Inventor: MINETT DENIS HENRY
IPC: F21V17/02
Filed: 1958-11-12
Abstract: 912,612. Signal lamps. LAMP MANUFACTURING & RAILWAY SUPPLIES Ltd. Feb. 11, 1960 [Nov. 12, l958], No. 36413/58 Classes 39 (2) and 75 (4). [Also in Group XXXVIII] A signal lamp adapted selectively to show one of a group of colour indicators, e.g. red, green or white, includes a rocking lever 9 associated with a quadrant 10, links 11, 12 pivoted to the quadrant and connected to pivoted arms 13, 15 carrying colour filters 14, 16 so that movement of the lever 9 in one direction brings the filter 14 into operative position and movement in the opposite direction brings the filter 16 into operative position. In the central position of the lever 9 both filters are inoperative. Leaf springs 24, 25 may be provided to facilitate movement of the arms 13, 15 and a further leaf spring 20 carried by the casing has a protuberance co-operating with depressions 21, 22, 23 on the quadrant 10 which serve to hold it in any one of the three positions. The device may be in the form of a separate unit which can be mounted between the lamphouse and the lens carrier of a hand lamp.
Patent GB-1111975-A (GB)
Title: Improvements in and relating to the winding of webs
Inventor: SHELDON GEORGE HEBBERTON
IPC: B65H75/08
Filed: 1964-09-05
Abstract: 1,111,975. Web-roll end protectors. WALMSLEY (WIGAN) Ltd., and MASSON SCOTT & CO. Ltd. 19 Aug., 1965 [5 Sept., 1964], No. 36487/64. Heading B8C. [Also in Divisions B6 and F2] A metal bobbin for inserting in the ends of successive web-roll cores to prevent deformation during winding on shaftless winders comprises a central body portion 10 of a diameter equal to the external diameter of the cores, which is formed on each side thereof with reduced shoulder portions 12 of a diameter equal to the internal diameter of the cores. The shoulder portions 12 have chamfers 14 and the bobbin is provided with a through bore 16 to allow for easy insertion and removal from the cores.