baber/WOPTO huggingface dataset:
Patent GB-216204-A (GB)
Title: Improvements in or relating to liquid fire extinguishers
IPC: A62C13/00
Filed: 1923-02-21
Abstract: 216,204. Graaff, W. Feb. 21, 1923. Extincteurs or chemical fire - extinguishers; fi r e - extinguishing by solutions or liquid mixtures. - A portable fire extinguisher is converbed into a foam fire extinguisher by fitting over the nozzle a headpiece containing foamforming chemicals. The extinguisher may contain a solution of an acid salt or an acid, such as aluminium sulphate or oxalic acid and foam-generating substance such as saponin, and the head-piece then contains a gasdeveloping substance such as an alkali carbonate or bicarbonate in powder form; or this arrangement of the chemicals may be reversed. The extinguisher may contain water and the head-piece all the chemicals for producing foam. A container d for chemicals is screwed on to the nozzle of a fire extinguisher by a sleeve c which holds a shell b against a packing ring f by a tube e. The liquid from the extinguisher passes by the tubes n through the chemicals, generating foam which passes through the open top of the container d and through openings i into the tube e. A sleeve g on the container d and wire gauze h around the tube. e are provided. A tube o frictionally engaging the head-piece serves to support it when not n use.
Patent GB-1437563-A (GB)
Title: Earth working apparatus
IPC: A01B13/08
Filed: 1974-02-05
Abstract: 1437563 Earth working apparatus CRC-CROSE INTERNATIONAL INC 5 Feb 1974 [16 Feb 1973] 05200/74 Heading A1P [Also in Division El] An earth working apparatus comprises a draw-bar 18 formed by a pair of legs 28 joined by a brace 30, the legs 28 being pivotally mounted by pins 20 to a tractor 10, and pivotally connected via pins 38 to a tool holder assembly 32 which carries earth working tools 14, the draw-bar being raised or lowered by actuators 24 about the pins 20, a link 44 being pivotally connected at 46 to the assembly 32 and the rear of the tractor 1 by a pin 52 respectively, which pivotal connection 48 being slidable within a track 56 (Fig. 3) defined by the sides of a back-plate 58 which is secured to the rear of the vehicle, such that an actuator 64 can move the pivotal connection of the link 44 as at 52 from a position above the draw bar 18 forming a parallelogram linkage (as seen in Fig. 5) to substantially the level of the draw-bar (forming a radial linkage as seen in Fig. 6). When the apparatus maintains a parallelogram linkage and tools 14 meet an obstacle 72 in the ground the tractor 1 has to be moved back a certain distance in order for the actuators 24 to raise the tools 14 whereas, in the radial position there is no need for the tractor 1 to be moved. Controls (not shown) for the actuators 24 and 64 are operable by the tractor operator. The assembly 32 may be adjusted with respect to the draw-bar 18 with the aid of the link 44 Fig. 8 (not shown). The tools 14 may assume varying positions dictated by the movement of the lugs 50 in the track 56 while they are being elevated by the actuators 24 (see Fig. 7).
Patent GB-893603-A (GB)
Title: Improvements in the treatment of synthetic fibres obtained from olefin polymers
IPC: D06P1/645
Filed: 1959-02-16
Abstract: Fibres formed from at least 75% by weight of polymers of alpha-mono-olefines are treated with a sulphonating or chlorosulphonating agent, and any excess of the agent is then washed out of the fibres.  The sulphonation of chlorosulphonation may be followed by amination.  The agent may be sulphuryl chloride, chlorosulphonic acid, concentrated sulphuric acid, phosphosulphonic acid, a gaseous mixture of sulphur dioxide and chlorine, or oleum. The fibres may be treated by immersing them for a predetermined length of time in a bath of the agent at room temperature.  The fibre is then removed from the bath and may be washed successively with, for example, acetone cooled below room temperature and water, or chloroform and ether, or nitromethane and carbon tetrachloride.  In an example, crystalline polypropylene staple fibres having an intrinsic viscosity of 1 are treated fro 20 minutes with sulphuryl chloride at room temperature and then washed successively with petroleum ether, acetone and water.  In other examples, fibres composed of mixtures of 90% by weight of polypropylene and 10% of polystyrene are treated with sulphonating or chlorosulphonating agents.  In some examples, the treated fibres are immersed in an aqueous solution of polyethyleneimine of 25% concentration at 100 DEG C. for half an hour.  Amination of the sulphonated fibres may also be carried out with ethylenimine, ethylene diamine, tetraethylene pentamine, triethylene tetramine or diethylenetriamine.  The treatment renders the fibres dyeable (see Group IV(c)). Specification 882,329 is referred to.ALSO:Fibres formed from at least 75% by weight of polymers of alpha-mono-olefins are rendered dyeable with basic dyes and acetate dyes by treating them with a sulphonating or chlorosulphonating agent and thereafter washing them to remove any excess agent (see Group IV(a)).  The thus treated fibres may be rendered dyeable with acid dyes by treating them with an aminating agent, particularly a polyimine.  Specification 882,329 is referred to.
Patent GB-124568-A (GB)
Title: Improvements in Machines for Inserting or Extracting Screws applicable also to other Machines of a similar character.
Inventor: RUSSELL FREDERIC WILLIAM
IPC: B25H1/00
Filed: 1918-03-27
Abstract: 124,568. Russell, F. W. March 27, 1918. Disk apparatus; driving-devices.-A machine for inserting screws, or for drilling, boring, or grinding, has a swinging arm 3 carrying the transmission mechanism such as a belt 8, to operate a driving-shaft 17, to which the tool 15 is coupled, preferably by a universal joint. The swinging arm 3 is arranged so that it can operate on either side of the brackets 1 carrying the striking-gear, and may be counterbalanced by the weight 21.
Patent GB-1194754-A (GB)
Title: Semiconductor Bistable Circuit Arrangements
IPC: G11C11/404
Filed: 1968-02-02
Abstract: 1,194,754. Semi-conductor bi-stable circuits. RCA CORP. 2 Feb.,1968 [2 May, 1967], No. 5433/68. Heading H3T. [Also in Division G4] In a bi-stable circuit having four threeterminal semi-conductor devices, such as insulated gate field effect transistors 12, 14, 20, 18 the impedance of the conduction path of two of these devices 12, 14 is greater than that of the other two devices 18, 20 for the same value of forward bias, the devices 12 and 18 and/or 14 and 20 are cross-coupled and an input is connected to commoned electrodes 24 of the devices 12 and 14. As described, an input on line 30 is read into the bi-stable circuit 10 by applying a 0 pulse 54 on write line 38. This turns transistor 26 on directly and transistor 28 indirectly via inverter transistors 40, 42 which turn ON, OFF, respectively. By arranging that the impedance of the conduction paths of the transistors 26, 28 are lower than the transistors 12, 14 most of the input voltage such as + V on line 30 is developed between point 24 and earth so that the stray capacitance of the circuit 15 rapidly charges to switch on transistor 18. By having the impedances of the conduction channels of the transistors 18, 20 lower than the transistors 12, 14 the stray capacitance 19 is rapidly discharged when either the transistor 12 or 14 and corresponding transistor 20 or 18 turn ON so as to shorten the regeneration cycle. Non- destructive read-out is provided by applying a pulse 56 of 0 on the read line 52, this turns on the transistor 48 and depending on the state of the output 22 the transistor 46 conducts or is off so that the output is determined by a sense circuit 32. In a simplified circuit (Fig. 3, not shown), the gating transistors 28, 40, 42 are removed and the gate of the transistor 26 is operated between - V and + V so as to ensure that the input 24 to the bi-stable circuit reaches +V. In a still further arrangement using transistors of the same conductivity types (Fig. 4, not shown), the source and drain electrodes of the transistors 14, 20 (80, 82) are interchanged and their gates are connected to their drain electrodes. Insulated gate field effect transistors of the TFT, MOS and MNS types may be used for all the transistors and the circuit may be formed as an integrated circuit. The transistors 12, 14 having the higher impedance conduction channels are formed with narrower width conduction channels and gates (Fig. 2c, not shown). Memory.-The write control line 38 is common to all the memory cells 10 of the same word and the input sense line 30 is common to all the bits in several words.
Patent GB-1482188-A (GB)
Title: Apparatus for printing and applying pressure sensitive labels
IPC: B41K5/02
Filed: 1974-07-15
Abstract: 1482188 Labelling MONARCH MARKING SYSTEMS Inc 15 July 1974 [5 June 1974] 05433/77 Divided out of 1482186 Heading B8F The apparatus is as described in co-divisional parent Specification, but the claims are directed to the mounting of the feed wheel on a rolling contact one-way clutch.
Patent GB-415454-A (GB)
Title: Improvements in air compressors
IPC: F02B71/04
Filed: 1933-02-22
Abstract: 415,454. Two - stroke engines. PESCARA, R. P., 115, Rue de la Tour, Paris. Feb. 22, 1933, No. 5440. Convention date, Feb. 23, 1932. [Class 7 (ii).] An internal-combustion air compressor comprises pairs of opposed free pistons 1, 2 and 3, 4 actuated by combustion in the cylinder 5 and compressing air in the cylinders 6, 7 the pistons of one pair being connected with those of the other pair so that the outward stroke of one pair effects the inward stroke of the other. Fig. 1 shows the outer pistons connected by rods 15 and the inner pistons by a rod 11 ; racks on these rods engage toothed wheels carried on an equalizing lever. In modifications, the pairs of pistons may be disposed side by side. The dimensions of the cylinders and the amount of clearance may be determined so that the energy of the return stroke due to the clearance cushion and the combustion in the other cylinder diminishes as the length of stroke increases towards the greatest value permissible and increases as the stroke diminishes to its least value. An odd number of piston pairs may be provided. The Specification as open to inspection under Sect. 91 comprises also means for regulating the feed of fuel and the supply of air from the compressor to a turbine or other engine which forms the subject-matter of Specification 415,477. This subject-matter does not appear in the Specification as accepted.
Patent GB-691086-A (GB)
Title: Improvements in or relating to automatic envelope and bag making machines
Inventor: PURVES ROBERT JAMES
IPC: B31B19/00
Filed: 1951-03-08
Abstract: 691,086. Envelope-making machines. WESLEY, Ltd.,H. Feb. 13, 1952 [March 8, 1951], No. 5661/51. Class 94(ii)  In an envelope or bag making machine of the plunger type, a positively-driven fast-running roller is provided between the gumming roller and the folding box, and the blanks have a predetermined increase in speed imparted to them by one or more rollers intermittently operated to engage their upper surface as they pass over the fastrunning roller. The blank passes between the gumming and backing rollers 14, 15 and' the driven feed rollers 16 to the roller 18. The latter is driven by the belt or chain 20 from the shaft of the roller 15, at a faster peripheral speed than the gumming or feed rollers. As the blank passes over roller 18 it is accelerated by the lowering of rollers 22 produced by the cam 29 and linkwork 23 ... 28 and proceeds to the folding box 17. By adjustment of the friction roller assembly, the blank may be given a predetermined acceleration depending upon the size of blank to be used. Reciprocating'guides 37 of conventional pattern and overhead swinging register stops 45, operated, by rods 43, 52, respectively, and associated linkwork, are provided in association with the folding box 17.
Patent GB-1382952-A (GB)
Title: Method of filling net loom shuttles with yarn and machinery for  performing the same
IPC: D04G1/00
Filed: 1973-02-06
Abstract: 1382952 Net-making machine F ZANG 6 Feb 1973 [9 March 1972] 5852/73 Heading D1C In a method of replenishing a net-making shuttle 2 from which a yarn end 6 protrudes, the end is united with a replenishing yarn 12, the shuttle filled and the replenishing yarn cut, The shuttles 2 are stored in a magazine 1, with the ends 6 extended and attached to counterweights 4. Shuttles are removed singly from the bottom of the magazine by a tray and deposited on a support 5. The support is erected to carry the shuttle to position 2b. The counter weight falls to a position 4b below a stop 8. An arm 7 now places the shuttle in position 2c with the yarn end horizontal and overlying part of uniting station 10. Yarn 12 likewise overlies station 10. The stat on is closed by an element 11 and the yarns united by glue, or welding. The yarn end is cut beyond the stop 8 to release the counter weight. The shuttle is gripped between a chuck and a tail stock, and rotated to wind-on yarn 12. A feeler 14 determines when the shuttle is adequately full, so that it can be released to drop down chute 15 and be inserted into magazine 16.
Patent GB-678030-A (GB)
Title: Improvements in or relating to bimetallic temperature-responsive elements
IPC: G01K5/64
Filed: 1950-03-08
Abstract: 678,030. Thermometers. MITCHELL H. W., and MITCHELL, J. H. March 5, 1951 [March 8, 1950; Jan. 23, 1951], Nos. 5878/50 and 1719/51. Class 97 (iii). [Also in Groups XIII and XXXVII] A bimetallic strip is corrugated transversely and coiled helically. It may actuate, according to temperature changes, a thermostatic regulator or a spindle K, Fig. 9, operating a pointer N<SP>1</SP> co-operating with a temperature scale N and in addition to, or instead of the pointer, electrical contacts, an armature of a control solenoid, or a variable capacitance or resistance of a control circuit. Re-entrant loops B, Fig. 5, may be formed on one side only of the strip to extend radially inwards of the coil or the strip may be bent in zig-zag fashion, Fig. 7, before coiling. The ends E<SP>2</SP>, Fig. 6, of a cylindrical helix E<SP>1</SP> may be of conical or frusto-conical form or the coil may be wholly of such shape, the re-entrant loops B being spaced progressively nearer and made shorter in the direction of taper. The portions B<SP>1</SP> between the loops B are curved to the circular cross-section and are wider than the loops, see Fig. 5. The uncorrugated ends C of the strip extend radially inward. As shown in Fig. 9, one end C of a cylindrical bimetallic helix D is clamped and spot welded in tongues J<SP>3</SP> on a collar J which is spot welded, when adjusted to give the required rotational position of the spindle K, to a sleeve H. A boss Fig. 13 (not shown), is formed on the sleeve for this purpose or the collar J is secured in a socket as shown. The sleeve H is screwed into a tubular casing G, to give the required initial longitudinal position of the spindle, and locked by a cap H<SP>2</SP>. The other end of the helix is secured in a slot of a sleeve K<SP>1</SP> on the spindle K or clamped between the two halves of a strip, Fig. 12 (not shown), which halves are spot welded together and form a sleeve on the spindle. Temperature changes, which cause rotation of the spindle K in guide apertures G<SP>3</SP>, M<SP>3</SP>, are indicated on the scale N. According to the first Provisional Specification, the loops B of the corrugations of the bimetal coil may extend outwardly, instead of inwardly as shown in Fig. 5.
Patent GB-1001363-A (GB)
Title: Vertical take off aircraft
IPC: B64C29/00
Filed: 1962-02-15
Abstract: 1,001,363. Linkwork. CURTISS-WRIGHT CORPORATION. Feb. 15, 1962 [Feb. 27, 1961], No. 5915/62. Heading F2K. [Also in Divisions B7 and G3] In an aircraft control system, linkwork is provided by which the amplification of pilot or autopilot control movements is varied. The linkwork (Fig. 18) comprises two equal length links 133, 136 and a further link 138, pivotally connected to each other, the link 133 being mounted on a fixed pivot 134 and connected to the input rod 150 and the link 138 being connected to an output lever. The gain depends on the angular separation of the links 133, 136 and this is varied by rotation of a slotted cam 121 acting through links 142, 144. Linkwork is also described (Fig. 21) by which a plurality of control inputs are summed. A bell-crank 161, 167, 178<SP>1</SP>, 189 is provided for each input, the input being applied to the vertical arm of the crank, and the other arm mounting the fulcrum of the next following crank. The other arm of the last bell-crank, 189, is connected to the output rod. Complementary cranks and links 161<SP>1</SP>, 167<SP>1</SP>, 178 are provided to support pivot bars such as 267, 173.
Patent GB-899630-A (GB)
Title: Improvements in and relating to devices for mixing and selecting tokens at random
IPC: G07C15/00
Filed: 1961-02-17
Abstract: 899,630. Chance apparatus. BERNARD, T. M. F. Feb. 17, 1961, No; 5957/61. Class 132(2) Numbered balls are mixed by rotation of container 1 in one direction and ejected one by one from a pivoted cup 5 by rotation in the other direction. The cup 5 has a weighted arm 5a which swings out centrifugally and tips the cup over to deliver each ball into shoot 6. The container 1 is made of wire dipped in polyvinyl chloride and has a trap door 4 closed by a clip 7.
Patent GB-271384-A (GB)
Title: Improvements in protected plug-in-inductance-coils
IPC: H01F27/00
Filed: 1927-03-03
Abstract: 271,384. Wildy, E. L., and London Electric Wire Co. & Smiths, Ltd. March 3, 1927. Inductances.-A plug-in inductance coil comprises two or more windings f, g located in spaced relationship within a protecting case a, b, the part a having a boss c carrying a socket d engaged by a tapping plug e. The coils are separated by a rubber washer l and cardboard separators h, k and are connected in series to a contact m in electrical connection with the socket d.
Patent GB-379679-A (GB)
Title: An improved method for the indirect reproduction of color photographs
IPC: G03C7/26
Filed: 1931-02-26
Abstract: 379,679. Colour photography GASPAR, B., 38, Innsbruckerstrasse, Sch÷neberg, Berlin. Feb. 26, 1931, No. 6042. Convention date, March 1, 1930. [Class 98 (ii).] For the indirect production of dye images a silver emulsion has incorporated therein an ester, ester salt or ether of a vat dyestuff leuco compound (or other intermediate or preliminary of the indigo or thio-indigo series) which is convertible by oxidization or reduction into the dyestuff, the added compound being such as is not affected by the production of the silver image but can be converted subsequently into the dye to produce a colour image either corresponding to the silver image or in the parts free therefrom. Nine specific examples and procedures are given including the use of diacetyl indigo white, di-isatogene, tetrabrome indigo, indol, indol carboxylic acid, indoxyl sulphate of potassium, helindon yellow, ethyl ether of hydroflavanthrone, oxythionaphthlene carboxylic acid, and water soluble compounds (e.g. sodium salts of sulphuric acid esters from leuco compounds of indigoidal dyes). The oxidization or reduction stages may be accompanied by a saponification or condensation action. The production of the dye may be accomplished by pretransformation of the silver image into an oxidizing compound (e.g. lead chromate), or, alternatively, (as in example 6) with one single solution containing an oxidizing agent (e.g. potassium chlorochromate or an acidified potassium bromate solution containing potassium iodide). The dye image may be produced after development and before fixing. Positive dye images may be produced direct from a positive. The dye image may be modified by an auxiliary colour image produced by toning or dyetoning the silver image by known methods. The process is applicable for obtaining multicolour photographs either by multi-layer images (e.g. one or two layers on each side of a film support) ; or, alternatively, by a particle mixture of different emulsions. The Specification as open to inspection under Sect. 91 (3) (a) of the Acts refers also to the use of images comprising manganese or iron salts instead of silver images ; also to the introduction of the leuco compound into the layer subsequent to development. These matters do not appear in the Specification as accepted.
Patent GB-402728-A (GB)
Title: Improvements in rail vehicles
IPC: B61F5/02
Filed: 1932-02-29
Abstract: 402,728. Railway undercarriages. MICHELIN ET CIE, Clermont-Ferrand, Puyde-Dome, France. Feb. 29, 1932, No. 6080. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 14, 1932]. [Class 103 (vi).] In railway vehicles the undercarriage B of the body A is suspended from the bogie unit D, E by links 1 jointed by universal joints 2, 3 with the undercarriage and bogie. The pivotal connection between the bogie unit and the undercarriage comprises a collar 7 free to oscillate and slide on a pin secured rigidly to the cross beam C of the undercarriage B. The collar 7 is provided with trunnions 6 engaging bearings 5 carried by arms 4 from the bogie. Centring springs 9 are provided. Adjacent bodies and undercarriages may be suspended from a common bogie unit.
Patent GB-213401-A (GB)
Title: Improvements in or relating to game apparatus particularly applicable for playing an indoor game
IPC: A63F7/00
Filed: 1923-03-02
Abstract: 213,401. Hoy, H. C. March 2, 1923. Table games. - Game apparatus combining- chance and skill comprises a bed 1 having pockets 2 disposed in or around it, and an inclined surface 3 with grooves 4 down any one of which a player may direct a ball to enter a pocket or strike a ball already on the bed 1. The bed 1 may be level or undulating and a cushion 6 may be provided round it, or more than one surface 3 may be employed, enabling balls to be delivered on more than one side of the bed. A scorer 7 may be provided and also a receptacle for the balls. The apparatus may be constructed on a larger scale for outdoor use, as by shaping the ground to enable the game to be played.
Patent GB-618586-A (GB)
Title: Improvements in or relating to building units and structures erected therefrom
IPC: E04C2/06
Filed: 1946-03-12
Abstract: 618,586. Building slabs; walls. WILKINSON. H. A., GILBERT, R. L., HOBSON, L. J., and WILKINSONS (RUNFOLD), Ltd. March 12, 1946, No. 6168/45. [Classes 20(iv) and 87(i)] A building slab 1 having vertical and horizontal ribs 3, 15 forming recesses 11 is provided with ribs 42, 40 of greater height at the top and bottom. Two slabs 1, 100 may be secured together with intervening damp - proof material 172 by bolts 162 passing through holes in the slab 100 and engaging nuts 164 secured to bolts 160 embedded in the other slab 1. Similar nuts may be embedded in the upper edge of the slab and the lower edge may be rebated at 170. Holes 20 may be provided through the ribs 15 to receive screwed rods and nuts for coupling slabs together. One end of each rod may be pointed and the co-operating end of the nut counter-bored.
Patent GB-163162-A (GB)
Title: Improvements in or relating to the purification of ammonium salts
IPC: C01C1/24
Filed: 1920-03-01
Abstract: Ammonium salts such as the oxalate are treated to remove free acid with crude ammoniacal liquor which has been freed from organic impurities by a solvent.  The crude liquor may be treated with benzene or one of its homologues, which extracts these impurities. Any solid impurities are removed by filtration.ALSO:Ammonium salts such as the sulphate, chloride, nitrate, and oxalate are treated to remove free acid with crude ammoniacal liquor which has been freed from organic impurities by a solvent. The crude liquor may be treated with benzene or one of its homologues which extracts these impurities.  Any solid impurities are removed by filtration.