baber/WOPTO huggingface dataset:
Patent GB-1382472-A (GB)
Title: Thermoplastic moulding compositions based on polyoxymethylenes
IPC: C08L59/02
Filed: 1972-01-17
Abstract: 1382472 Polyoxymethylene compositions HOECHST AG 17 Jan 1972 [15 Jan 1971 7 Oct 1971] 2235/72 Heading C3P A moulding composition comprises 99À999- 90% of a linear polyoxymethylene and 0À001-10% by wt. of a branched or cross-linked polyoxymethylene. The components, each optionally containing a stabilizer, may be mixed in powder form then melted, homogenized, extruded and granulated. The linear polymer may be a homopolymer of formaldehyde or trioxan or a copolymer of trioxan with a monofunctional comonomer such as a cyclic ether, cyclic acetal or linear polyacetal: exemplified comonomers are ethylene oxide and 1,3- dioxolane. The branched or cross-linked polymer may be prepared (a) by copolymerizing trioxan with a polyfunctional comonomer and optionally a monofunctional comonomer: copolymers of trioxan with ethylene oxide or dioxolane and dicyclopentadiene oxide, methyl glycidyl formal, 1,4-butanediol diglycidyl ether, 1,2,6-hexanertiol formal, or oligomeric formals of 1,2,6-hexanetriol and 1,6-hexanediol or polyethylene glycol are exemplified; (b) by crosslinking a copolymer of trioxas, a polyfunctional monomer of which only one functionality is copolymerizable and optionally a monofunctional comonomer such as ethylene oxide or dioxolane by means appropriate to the residual function(s) of the polyfunctional monomer; in the examples copolymers in which the latter is p-glycidoxybenzaldehyde are cross-linked by reaction with hydrazine, adipic acid bishydrazide or ethylene diamine or by heating, a copolymer of methyl p-glycidoxycinnamate is cross-linked by U.V. irradiation, and copolymers of p-glycidoxynitrobenzene or epichlorohydrin are cross-linked by reaction with 4,41-diisocyanatodiphenylmethane after conversion of the nitro and chloro groups to amino and hydroxy respectively; (c) by polymerizing trioxan and optionally a monofunctional comonomer in the presence of a branched or cross-linked polyether, or by reacting a linear polyoxymethylene with such a polyether, in the examples trioxan and dioxolane are copolymerized in the presence of polyethers derived from tetrahydrofuran, ethylene glycol and 1,4-butanediol diglycidyl ether or 2,9-dioxa-dispiro [3.2.3.2] duodecane, and a trioxan-dioxolane copolymer is reacted with 1,4-butanediol diglycidyl ether in the presence of BF 3 .Bu 2 O. Either of the polymer components may be treated, e.g. by heating with an alcohol in the presence of an amine, to remove unstable end-groups.
Patent GB-547256-A (GB)
Title: Improvements in compression-ignition engines adapted for operation with solid and liquid fuels in combination
IPC: F02B3/06
Filed: 1941-02-19
Abstract: 547,256. Pulverized-fuel engines. SMITH, D. J., and KENNEDY, D. S. Feb. 19, 1941, Nos. 2259 and 10353. [Class 7 (ii)] In a compression-ignition engine using a paste composed of a pulverized solid fuel mixed with a liquid hydrocarbon, the paste is fed by a reciprocating plunger l along a hollow valve stem d<SP>1</SP>, and is blown through holes d<SP>3</SP> therein into a separate combustion chamber b by the air compressed in the engine cylinder a, which has access to the open end of the hollow valve stem. The mixture thus formed ignites in the chamber b, and the combustion pressure forces back a piston f on the stem d<SP>1</SP>, and thereby opens the valve d, which uncovers passages e<SP>1</SP> leading into the cylinder. A spring g acting on the piston f may be adjusted by a hand wheel h, and the stroke of the plunger l is also adjustable. This plunger may act as a valve covering the holes d<SP>3</SP> until moved back by the compression pressure in the cylinder. Ash in the chamber b may be expelled through holes uncovered by the piston f. In a modification the separate combustion chamber is provided in the piston, the combustion pressure acting directly on the separating-valve so as to open it.
Patent GB-1530281-A (GB)
Title: Board game
IPC: A63F3/00
Filed: 1975-01-18
Abstract: 1530281 Board game INVICTA PLASTICS Ltd 16 Jan 1976 [18 Jan 1975] 2268/75 Heading A6H A board game comprises an area of a board for receiving key pieces set up by a player to form a "target" code concealed from the other player(s), and two areas of the board for the placing of "test" playing pieces by the other player(s), one set of test pieces 16 being allied to the characteristic shape of the key "target" pieces and the other set to the characteristic colour, and marker elements for signalling the "correctness" of the test pieces. Twenty five different cards 8 are printed with the key "target" pieces which are displayed as a whole in a panel 4. When a piece has been correctly identified it is covered by a black disc 14. The fifty test pieces 16 (10 of each of 5 shapes) are all of one colour and the fifty test pieces 18 (10 of each of 5 colours) are all of one shape. Black and white elements 10, 12 are used to indicate the correctness of the position and colour or shape of the test pieces. Thus a white element indicates that one test piece is of the correct characteristic but in the wrong position.
Patent GB-872683-A (GB)
Title: Improvements in or relating to colour photography
Inventor: WOOLLEY JOHN MATHERS
IPC: C07D209/88
Filed: 1959-01-21
Abstract: Thiosulphonic acids of formula <FORM:0872683/IV (b)/1> with R1, R2 alkyl groups or part of a nitrogen-containing ring system and Z a hydrogen atom, alkyl or alkoxy group comprise 4-N:N - diethylaminoaniline - 2 - thiosulphonic acid prepared by stirring an aqueous mixture of 4-diethylaminoaniline sulphate, sodium acetate, sodium thiosulphate, sodium dichromate and acetic acid and filtering off the crystalline product which separates out, and 4-diethylamino-6-methylaniline - 2 - thiosulphonic acid, 4-dimethylaminoaniline-2-thiosulphonic acid, 4-(N-ethyl-N-delta-hydroxy)-butylamine) aniline-2-thiosulphonic acid and 1- (delta-hydroxybutyl) -6-amino-1:2:3:4-tetrahydroquinoline-7-thiosulphonic acid which are prepared similarly.  The other compounds, which are photographic couplers, comprise 2-hydroxycarbazole-3-carbonanilide prepared by boiling the corresponding carboxylic acid with aniline and phosphorus trichloride in toluene and filtering off the separated product, the corresponding 3-carbon (41-dodecyl) anilide, -3-carbon-(21(N-methyl-N-octadecyl) amino-51-sulphonanilide), -3-carbon octadecylamide and 1-carbonanilide of 2-hydroxycarbazole, also 3-bromo-2-hydroxycarbazole all prepared similarly; and then 2:4-dihydroxyphenyl heptadecylketone prepared by passing hydrochloric acid gas into a mixture of anhydrous zinc chloride, resorcinol and heptadecyl nitrile in dry ether and subsequently filtering off the separated product; and also 2:4-dihydroxybenze(41-dodecylanilide) and 2:4-dihydroxybenz (21-(N-methyl -N- octadecyl) amino-5-sulphoanilide prepared somewhat similarly.
Patent GB-574617-A (GB)
Title: Improvements in or relating to pen nibs
IPC: B43K1/00
Filed: 1944-02-09
Abstract: 574,617. Pens. BODDY, J. Feb. 9, 1944, Nos. 2372 and 23801. [Class 146 (iii)] [Also in Group XXII] A pen nib or stylo has its writing point tipped with hard chromium to increase its wear resisting properties. The nib may be made from a single strip of metal in such a way that the point is thicker than the body of the nib. This may be effected by swaging or pressing a rectangular blank of an original thickness equal to the required thickness of the point so that the body part 11, Fig. 3 is of a reduced thickness. The nib is then stamped from the blank and passed between a pair of shaped rollers to impart the transverse curvature to the nib. The slit in the nib is formed by pressing the nib between pairs of dies, Figs. 7 and 8, each pair comprising a fixed die b, c and a movable die a, d, spring pressed stop pins 18 being provided in the dies c d for positioning the nib. The nib is then inserted between a pair of dies for punching a hole at the inner end of the slit. Chromium is then deposited on the nib point in a suitable bath.
Patent GB-1045296-A (GB)
Title: An improved means for joining objects such as pipes
IPC: F16L19/08
Filed: 1964-01-20
Abstract: 1,045,296. Pipe coupling. STEWARTS & LLOYDS OF NEW ZEALAND Ltd. Jan. 20, 1964 [Jan. 20, 1963; March 28, 1963], No. 2389/64. Heading F2G. A joining means for pipes or tubes comprises a plate of springy material which is secured at its outer peripheral edge within a bore of a pipe or tube 8, the plate being provided with a central aperture wherein a joining part of a workpiece or second pipe or tube 11 can be accommodated, the inner edge of the plate being arranged to conform with, extend over and grip the outer surface of the workpiece or pipe. The workpiece may be a spigot attached to a wall (Fig. 3, not shown). When fluid carrying pipes are joined a resilient washer 9, of rubber or plastics material is secured to the inner surface of the first pipe adjacent the plate 1, the inner edge of the washer contacting the outer bore of the second pipe. Preferably, the inner edge of the plate is relieved by slots and is of a dished shape.
Patent GB-607107-A (GB)
Title: Improvement in lever escapements
IPC: G04B15/14
Filed: 1946-01-25
Abstract: 607,107. Clockwork escapements. JEANNERET, H. Jan. 25, 1946, No. 2565. Convention date, Feb. 12, 1945. [Class 139] The escape wheel 1, Fig. 1, of a lever escapement has its teeth successively chamfered to opposite sides as shown in Fig. 2 so that they engage and move along different paths of the pallets 2, Fig. 5. In this manner the oil film on the pallets :is kept in motion and a smooth operation is obtained. In an alternative embodiment the successive teeth of the escape wheel are chamfered as shown in Fig. 4.
Patent GB-1092564-A (GB)
Title: Arrangement suitable for giving messages for automatic telephone systems
IPC: H04M3/533
Filed: 1966-01-19
Abstract: 1,092,564. Automatic exchange systems. TELEFON L. M. ERICSSON A.B. Jan. 19, 1966 [Jan. 19, 1965], No. 2580/66. Heading H4K. A message, such as asking a subscriber who was busy when called to call a certain number, or such as giving a subscriber advice as to duration and charge for a call just completed, is compiled from a stock of words on a record medium in a playback machine, each word being recorded along with a code tag and a store being provided to record a sequence of codes corresponding to a required message, the sequence of codes being read out one by one for comparison with code tags on the record medium to obtain playback of the corresponding words one by one. As shown in Fig. 1 a subscriber, such as B, found busy can be camped on by a relay set SRB over selector VAD. When the subscriber clears from the call with which he has been busy he is rung from SRB and is connected on reply to a playback machine BSP. A message is compiled for the subscriber found busy by dialling a sequence of code numbers which are stored in binary form in successive columns of a magnetic core store MEM. When the message is to be delivered the columns are read out one by one to a register ULF where they are compared with the whole sequence of similar codes on a track S2 of the reproducing machine which holds words corresponding to the codes on a track S1. As coincidence between codes is detected in JLK the reproducing machine is instructed to deliver the corresponding word to the relay set SRB. The facility to leave such a message is obtained by dialling a service digit which connects the store MM and uses the identity of the wanted subscriber in register REG to effect the camping connection over VAD. Where the exchange uses line state memory and data processing for path routing (Fig. 2, not shown) the busy line identity can be marked to initiate a message connection as soon as the line becomes free. For messages advising duration and charge for a call a store such as MM has data fed to it direct from the metering equipment. This facility is also obtained by dialling a service digit.
Patent GB-857774-A (GB)
Title: Improvements in nut-tapping machines
Inventor: SHIRLEY-PRIEST JOSEPH
IPC: B23G1/18
Filed: 1957-01-24
Abstract: 857,774. Nut-tapping machines. HACKETT BROS. (1934) Ltd. Jan. 23, 1958 [Jan. 24, 1957], No. 2639/57. Class 83 (3). In a curved shank-tap, nut-tapping machine, nut blanks 23 are fed, e.g. by gravity down a feed channel 24 into a position opposite a rotating-tap 13 and are pushed singly on to the tap by a reciprocating pusher 25. The nuts 16 are self-fed along the tap and are ejected at 15<1>. The pusher is reciprocated by a pneumatic piston 35, to opposite sides of which air is directed alternately by a valve 39 whose actuating lever 47 is operated by cams 48 on a pulley 34 driven by a shaft 31 and gearing 29, 26, from the shaft 5, which also drives the tap 13. The latter is mounted in a head 12 attached to a shaft 11 splined within shaft 5, which is driven by an expanding pulley 9. The pusher 25 reciprocates twice per revolution of the tap, and its speed may be varied by regulating and reducing-valves 42, 45. Pulley 34 drives an agitator in the container (not shown) for blanks 23.
Patent GB-247180-A (GB)
Title: Improved process and installation for producing, simultaneously or successively, light of different colours by means of a discharge tube having positive column light
IPC: H05B41/42
Filed: 1926-01-29
Abstract: 247,180. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Feb. 9, 1925, [Convention date]. Controlling lighting systems.-The current density in a lighting tube containing one or more gases and one or more vapours is varied with respect to time so that the light of the rare gas predominates at high current density, and the light of the vapour at low current density. As shown. a tube 1, containing neon and mercury, is connected in series with a resistance 4 and the secondary of a transformer 5, the primary of which is in series with a resistance 6 which is short-circuited intermittently by a switch 7, operated, for instance, mechanically every second, so that the tube emits alternately red and blue light. The switch may be in parallel with a part of the resistance 6, the resistance 4 being omitted, or in parallel with a part of the resistance 4, the resistance 6 being omitted. The diameter of the tube may gradually increase from a narrow to a wide portion so that a gradual change of colour from red to blue is obtained.
Patent GB-129580-A (GB)
Title: Improvements in or relating to Rotary Cutting Tools.
Inventor: WALKER DURWARD GEORGE MALCOLM
IPC: B23C5/22
Filed: 1919-02-05
Abstract: 129,580. Walker, D. G. M. Feb. 5, 1919. Milling-cutters.-Detachable cutters are secured in place in the body by keyed connexions at rightangles. The cutters f are provided with integral keys g on one face which register with grooves in the body and have recesses h on their other faces at right-angles to the keys, and which aline with corresponding grooves in the body to form a hole for the reception of taper keys i.
Patent GB-1451422-A (GB)
Title: Inhibitor removing bath for reversal colour photographic developmen
IPC: G03C7/413
Filed: 1974-01-21
Abstract: 1451422 Photographic dye formation inhibitor removing bath MINNESOTA MINING & MFG CO 21 Jan 1974 [22 Jan 1973 28 Dec 1973] 02786/74 Heading G2C A photographic bath comprises (A) a colour accelerating agent (i.e. materials which accelerate colour dye formation in the development of photographic silver halide reversal films) at at least 0.05 moles/litre, (B) a contrast control agent (i.e. materials which control the gradation of the intensity of dye images in colour photographic silver halide processing) at at least 4 x 10<SP>-3</SP> moles/litre and (C) a buffering agent to provide a pH within the bath of 11-13, the bath containing less than 0.05 moles/litre phosphate and less than one half the molar concentration of colour developer required for full colour development i.e. to generate an optical density of 3À0. The bath may contain no colour developer. Component (A) may be ethylene diamine or (3-phenylethyl amine. Component (B) may be citrazinic acid or potassium iodide or bromide. Component (C) may be trisodium phosphate. The bath may also contain (D) a colour reversal agent (i.e. a nucleating or fogging agent) at at least 1À6 x 10<SP>-</SP><SP>3</SP> moles/litre e.g. a borohydride, amine-complexed borane or hydrazine. A colour photographic reversal development process comprises (1) treating a colour photographic element having a hydrophilic colloid silver halide layer bearing a latent image with a bath comprising in aqueous solution of pH 8À5-14 (a) at least 0À02 moles/litre photographic colour developing agent capable, upon oxidation, of reacting with a colour coupler to form a dye and having a polarographic half-wave potential at pH 11À0 of -159 to -305 mV, (b) at least one black and white developing agent having a polarographic half-wave potential at pH 10À0 of -10 to -187 mV and (c) a water-soluble, dye formation inhibitor at at least 0À10 moles/litre present in sufficient quantity so that all dye formation of a silver halide photographic element is  restrained in the bath after the element has been exposed to light, the mole ratio of (c) to (a) being a least 0À97, to develop solely a negative black and white silver image therein, (2) fogging and (3) treating with a bath as defined in the previous paragraph to reduce the inhibiting effect of (c). Fogging (2) may be effected by colour reversal agent (d) in bath (3). Specification 1403408 is referred to.
Patent GB-788346-A (GB)
Title: Improvements in or relating to screw and nut actuators
IPC: B64C1/14
Filed: 1956-01-31
Abstract: 788,346. Screw and nut actuators. HOOVER, V. A. Jan. 31, 1956, No. 3041/56. Class 78 (3). [Also in Group XXIV] A screw and nut actuator particularly for aircraft comprises an actuating screw S movable longitudinally through a driving nut N which is rotatably supported in a frame 18 by bearings 22, 24. The centre portion only of the nut is threaded at 16 and guide collars 58, 59 secured to the frame 18 support the screw against transverse deflection. The nut is driven by an electric motor 26 through gearing 63, a torque limiting device 65, and gearing 69, 70, 78.
Patent GB-1143321-A (GB)
Title: Fire retardant polyolefin compositions
Inventor: LISTNER GREGORY JULIUS
IPC: C08K5/00
Filed: 1966-11-14
Abstract: 1,143,321. Polyolefin films. JOHNSON & JOHNSON. 14 Nov., 1966, No. 3198/67. Divided out of 1,126,478. Addition to 1,126,478. Heading B5B. [Also in Division C3] In a modification of the method of Specification 1,126,478, for making films by extruding compositions comprising a polyolefin, organic bromine compound and 0À05 to 20 weight per cent of a dispersant therefor, to form monofilaments, chopping the filament and pressing the chopped filaments, the compositions comprise 12 to 15 weight per cent of bromine compound instead of 1 to 12 weight per cent. In examples compositions comprising (I) polypropylene and (II) polyethylene together with butylated hydroxytoluene, dilauryl thiodipropionate, stearic acid, chlorinated diphenyl and tris - (2,3 - dibromopropyl) phosphate, are extruded, chopped, and pressed between polytetrafluoroethylene coated fibre-glass release fabric at 370-380‹ F.
Patent GB-1444146-A (GB)
Title: Electronic calculators
IPC: G06F15/02
Filed: 1973-07-06
Abstract: 1444146 Electronic calculators HEWLETTPACKARD CO 6 July 1973 [7 July 1972] 03349/76 Divided out of 1444141 Heading G4A A BASIC language command entered on a keyboard is executed immediately by a processor following actuation of an execute key on the keyboard. Commands are recognized by the processor executing routines stored in read-only memory modules which hold tables of commands comprising strings of alpha numeric characters. Information may also be transferred between the calculator and any one of a number of magnetic tape cassette units.
Patent GB-205005-A (GB)
Title: Improvements in vehicle spring suspensions
IPC: B60G11/02
Filed: 1923-02-05
Abstract: 205,005. Crabtree, G. W. Feb. 5, 1923. Spring shackles.-In spring suspensions for road vehicles and of the kind comprising a main laminated spring and a supplemental leaf spring to which the main spring is connected to transfer a part of the load from the main spring to the supplemental spring, the main spring has a rigid lever pivoted to at least one end thereof, the lever having an arm adapted to apply a part of the load from the main spring to substantially mid-length of the supplemental spring, which is semi-elliptic and supported so as to permit its opposite ends to flex. Fig. 1 shows a cross spring suspension in which the main spring m transfers the load stress to levers L pivoted on perches p attached to the axle housing. The levers L transfer part of the stress to the centre of the supplemental leaf springs s, the ends of which are free to flex and are attached or pivoted to the frame F and bolt b on lever L respectively. Fig. 6 shows a longitudinal spring suspension in which the main spring m<4> attached to the axle a<4> is attached to a lever L<4>, one end of which is fulcrumed on a link p<4> carried by a leaf spring n, and the other end bears on the supplemental spring s<4> as shown. The ends of the spring s<4> are mounted as shown. The shape of the levers and the methods of connecting them to the main and supplemental springs may be varied.
Patent GB-163091-A (GB)
Title: Improved bottle, jar and the like soaking apparatus
IPC: B08B9/22
Filed: 1920-02-04
Abstract: 163,091. Hill, T. Feb. 4, 1920. Bottles, washing, by machines in which the bottles are contained in a sinker E, carried on eccentric trunnions e supported on bearings inside a plurality of tanks of cleansing solution, the sinker being closed by a perforated lid H secured by rods H<1>, H<2> engaging holes in double handles G fitted to each end of the sinker, whereby it is oscillated in the cleansing solution. The bottles are placed on an openwork bottom e<1> of the sinker, the lid H secured in place, and the whole lowered into the tank. After cleansing, the sinker is inverted so that the bottles are lifted out of the solution in order to drain, a clip (not shown) retaining the sinker in this position, whereon the same operation is performed in the next tank.
Patent GB-270398-A (GB)
Title: Improvements in and connected with internal combustion and other fluid-pressure engine indicators
IPC: G01L23/02
Filed: 1926-02-06
Abstract: 270,398. Reid, A., and Dobbie, McInnes, & Clyde, Ltd. Feb. 6, 1926. Internal-combustion and other fluid-pressure engine indicators.-Comprises apparatus for taking diagrams which are enlarged at particular places in order to exhibit more clearly the incidents at these points. A slotted link A pivots about a pin B and is driven by a spring loaded crank pin K in a slider. J. This pin is adapted to engage any of a series of recesses I arranged around a disc E which is adjustable relatively to an inner conical disc G, by which it is clamped to the cam-shaft F of the engine by means of screws H. A slot N is provided in the link A by which a pulley M may be adjustably secured to the link, the cords working the indicator drum being attached to this pulley. The recesses I correspond in number to the number of engine cylinders and come to the top dead centre when firing takes place. The pivot pin B is capable of adjustment about the axis of the cam shaft in order to correct discrepancies of crank angle or wear, the bracket C being movable along a slotted quadrant L to which when adjusted it is clamped by nuts D. In the case of reversing engines with slidable cam shafts, the lever A moves along the pivot pin B, a quadrant A<1> engaging a groove in the part E and causing the lever to slide with the cam-shaft. Diagrams may thus be taken with the engine reversed.