baber/WOPTO huggingface dataset:
Patent GB-532308-A (GB)
Title: Improvements in or relating to the manufacture of interpolymers derived from methacrylic acid, and of water soluble salts thereof
IPC: C08F20/62
Filed: 1939-04-17
Abstract: 532,308. Vinyl polymerization products. DU PONT DE NEMOURS & CO., E. I. April 17, 1939, No. 11636. Convention date, April 16, 1938. [Class 2 (iii)] Interpolymers which are capable of taking up water and thereby becoming swelled are prepared by polymerizing a mixture of 40 to 98 per cent. by weight of methacrylic acid and 60 to 2 per cent. of at least one compound of the group consisting of the nitrile, amide and esters of methacrylic acid in the absence of a plasticizer. Water soluble salts are obtained by partially or completely neutralizing the interpolymers by means of an aqueous alkali, e.g. an alkali metal or ammonium hydroxide or carbonate or an organic base. Polymerization is effected by heat, light, polymerization catalysts, e.g. oxygen, benzoyl peroxide or ammonium sulphate, or two or more of these agencies, and may be carried out in a solvent, an emulsion, or dispersion. The interpolymer salts may be used as sizes for yarns or fabrics, adhesives, for tanning hides, coagulating gelatin, dispersing agents for pigments and anti-halation layers. In examples (1) to (3), methacrylic acid, methyl methacrylate and benzoyl peroxide are dissolved in toluene and heated under reflux, when the interpolymer separates as a fine powder ; the powder may be dissolved in a solution of sodium hydroxide by bubbling steam therethrough while stirring. In example (4), a granular interpolymer is prepared by dissolving methylated starch in water, adding methacrylic acid, methylmethacrylic and benzoyl peroxide, heating and stirring ; the polymer slurry obtained may be filtered or centrifuged, or may be added to a solution of sodium hydroxide to give a solution of the sodium salt. Specifications 358,534, 404,504, 421,397, 427,494, 460,239, 460,241 and 475,552 and French Specification 791,614 are referred to. According to the Specification as open to inspection under Sect. 91, the mixture which is polymerized may contain from 30 to 98 per cent. by weight of methacrylic acid and the interpolymer ingredient other than the methacrylic acid may be any other polymerizable compound or mixture of polymerizable compounds, specified compounds being acrolein, methyl vinyl ketone, vinyl isobutyl ether, vinyl organic or inorganic esters, e.g. vinyl chloride, vinyl acetate or vinyl chloracetone, styrene, butadiene and unsymmetrical dichlorethylene. In an example, methacrylic acid, propyl methacrylate and benzoyl peroxide are dissolved in toluene and heated under reflux. This subjectmatter does not appear in the Specification as accepted.
Patent GB-421312-A (GB)
Title: Improved process of, and apparatus for gasifying fuel dust
IPC: C10J3/46
Filed: 1934-04-18
Abstract: 421,312. Coking processes ; gasproducers. SZIKLA, G., 52, Budafoki-ut, and ROZINEK, A., 4, Fuge-Ucca, both in Budapest. April 18, 1934, No. 11711. Convention date, April 18, 1933. [Class 55 (i)] Producer gas obtained from the combustion of powdered fuel, particularly pulverized coal, fed into a stream of air rising within a gasefication chamber, is cooled by a shower of fresh coal dust projected across the upper part of the gasefication chamber and which is simultaneously coked. The coke particles collect in an adjacent dust collecting chamber and are recirculated therefrom into the stream of air in the gasefication chamber. The gasefication chamber 1 is provided with an air blast aperture 3 controlled by a slide 4 and the fuel is fed therein from the dust collecting chamber by means of a reciprocating plunger 10, the fuel being compressed by the action of an inclined surface 9. The fresh fuel, fed from a rotating projector wheel 12 into the upper part of the chamber falls on to baffle plates 25-27 in the dust collecting chamber in cascade manner and collects in front of the plunger 10 for re-admission into the gasefication chamber. Steam may be introduced with the current of air and water may be sprayed into the gases through a tube 28 in the upper part of the dust collecting chamber. The top of the producer may be composed of cooling tubes 29 and the movement of the air slide 4 or the opening of the air admission valve 21 may be controlled by a thermostat arranged in the path of the combustion gases. Specifications 255,857 and 274,110, [both in Class 55 (i)], are referred to.
Patent GB-1027341-A (GB)
Title: Improvements in or relating to moulding apparatus
IPC: B29C45/16
Filed: 1963-03-25
Abstract: 1,027,341. Moulding keys for typewriters &c. S. KOBAYASHI. March 25, 1963 [April 27, 1962], No. 11746/63. Heading B5A. A metallic mould for moulding plastics materials, especially for shaping two-tone typewriter keys or telephone dials, comprises an upper mould 1 (Fig. 3, not shown) and two lower moulds 2, for a first stage and 3 (Fig. 4, not shown) for a second stage, the upper mould 1 being provided with several vertically movable plungers 14 and the first lower mould 2 being provided on its upper surface with small projections 4 serving to provide gates c for the second step, the two lower moulds being interchangeably engageable with said upper mould so as to enable the first step of the process to be carried out by injection moulding into the upper mould and the first lower mould 2, whereafter the product remains in the upper mould and the second step then being carried out by injection moulding into the upper mould and the second lower mould 3. The first lower mould 2 is fitted to the upper mould 1 and the plungers 14 are moved down into contact with the projections 4 by cylinders 20 acting on rods 16 through a plate 18. The first injection moulding is carried out through gate 5. The first lower mould 2 is then removed, leaving the first moulding attached to the upper mould 1, and the second lower mould 3 is fixed in its place. This mould 3 has a cavity 6 which is below the first moulding. The plungers 14 are now raised until in contact with an intermediate plate 11 in the upper mould 1. The second injection is now made through gate 7, giving a two-coloured article having smooth upper and lower surfaces.
Patent GB-173190-A (GB)
Title: Improvements in the type and key lever mechanism for typewriting machines
IPC: B41J5/14
Filed: 1921-04-25
Abstract: 173,190. Scheffer, R. April 25, 1921. Type-lever actions.-In actions in which the key-levers and type-levers are mounted in radial slots in a segment and have pin-and-slot connection, the slots b, c for the key-levers d and typelevers i respectively are relatively displaced by an amount equal to the width of a slot, and the key-levers are provided with pins g engaging slots h in the type-levers. The key-levers and typelevers are plane and are pivoted on wires f, k. The slotted segment a is formed by die-casting.
Patent GB-780769-A (GB)
Title: Improvements in foot supports for insertion into boots, shoes or other kinds of footwear
IPC: A43B21/32
Filed: 1955-04-25
Abstract: 780,769. Heel supports for footwear. OSTERMAN, H. April 25, 1955 [April 23, 1954], No. 11887/55. Class 17(2) A heel support for insertion into footwear comprises a piece of material in the general form of a horseshoe with arms 6, 7 of unequal width bevelled towards their inner edges, the arm 6 being about half the width of arm 7. The lower surface is flat and the outer edges of the support may be of a uniform height. The support may be made of cork covered with a thin flexible layer of leather or fabric.
Patent GB-316200-A (GB)
Title: Improvements in tin boxes, glass or like pots, jars or like containers provided with means to facilitate opening thereof
IPC: B65D43/02
Filed: 1928-04-24
Abstract: 316,200. Punch, J. F., and Henley, J. April 24, 1928. Lids. - Relates to the attachment of fingerpiece opening means to tin boxes, glass or like jars, and similar containers. The shanks 3, Fig. 1, of the finger-pieces terminate in root portions 4 the width of which is reduced by their being formed of wedge, triangular, semi-circular or other appropriate shape, the root portions being anchored in similarly-shaped recesses or sockets formed in the body and cover portions of the container so that the opening pressure applied to the finger-pieces tends to force the root portions more firmly into the recesses. In the case of glass or like vessels, undercut sockets for the root portions may be moulded therein or the sockets may be formed in metal collars suitably attached to the parts. In the case of tin boxes the root portions may be secured, for example, to the body part 1 by means such as shown in Fig. 3, and comprising a plunger 10 operating upon suitably recessed undercut dies 8 adapted to be brought together to complete the attachment. If the root portion be of curved shape, the attachment can be performed in a single operation, as shown in Figs. 4 and 5.
Patent GB-353060-A (GB)
Title: Chassis for motor vehicles
IPC: B62D21/02
Filed: 1930-04-16
Abstract: 353,060. Motor vehicle frames. BREWER, G., 33, Chancery Lane, London. -(Baersch, L. ; 85, Zinglerstrasse, Ulm-on- Danube, Germany.) April 16, 1930, No. 12039. [Class 79 (iv).] The underframe work of a motor vehicle comprises two or more longitudinal members c passing throughout the length of the vehicle and connected at the ends to elements a, b to which transverse spring axles are attached, the vehicle body being supported at two points lying in the longitudinal medium plane of the chassis and also at points g on the ends of a cross bearer e arranged substantially at the centre d of the longitudinals. The longitudinals are so dimensioned as to yield slightly to prevent the transmission to the body of shocks which are not fully taken up by the springs. The longitudinals c may be of channel-shaped formation, Fig. 1, the medium supporting points h, i being respectively arranged on the end connecting members a, b or on one end member b and a cross carrier r provided as a point of support for the pedals. In Fig. 3, the longitudinals c are tubular with tapered or reduced ends c<1> and pass through the end connecting elements a, b, beyond which they may be extended to carry a seat or load supported at three points t, u, v. The tubes c, which are placed as closely as possible to the plane of the axles, or between the upper and lower members thereof, may be slightly bent to lower the centre of gravity of the vehicle and may be spaced apart so as to permit the mounting of the transmission gearing &c. therebetween. They may also serve singly, in parallel or in series for conveyance and silencing of exhaust gases or the exhaust pipe p, may pass through one of the tubes c, open at both ends, being in contact therewith only at points of attachment.
Patent GB-552126-A (GB)
Title: Improvements in the manufacture of metal tubing
IPC: B23K11/06
Filed: 1941-09-19
Abstract: 552,126. Annealing tubes. GENERAL MOTORS CORPORATION. Sept. 19, 1941, No. 12048. Convention date, March 21. [Class 72] [Also in Group XXII and XI] A tube may be annealed by heating to over 1400‹F by passing electric currents through it by means of metal boxes 65 ... 68 separated by insulating sleeves 62, 63 and containing copper pellets 72 and graphite, non-oxidizing or inert gas being admitted to the boxes and sleeves by pipes 80 ... 83 and air or a reducing gas to the inside of the tube, according as a blued or bright interior is desired, by a pipe 140. The tube is at once cooled in inert gas by a water-jacketed sleeve.
Patent GB-256674-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/20
Filed: 1925-05-09
Abstract: 256,674. Hope, V. May 9, 1925. Fusible cut-outs.-In a bridgecarrier fuse, which may be of the construction described in Specification 253,987, the fixed contacts E are shrouded by blocks A of insulating material so that the carrier blades b<2> are completely protected before reaching the contacts E, and the carrier B cannot be canted during insertion. The block A has slots a<4> of a T or L shape, corresponding lateral projections b<4> being formed on the blades b<2> by bending their ends. If the carrier is canted or improperly presented as shown in Fig.- 5 the blade b<2> cannot pass through the slot a<4>. A collar b<1> may also coaet with the fixed surfaces a3 to prevent canting, or pegs carried by the fuse box may coact with holes in the carrier. The fixed contacts E are secured within the insulating block A by being clamped between the bus-bar D and a plate e<1> by screws e<4> that project behind and loosely enter a hole a<5> and slot a<6> in the block. A hole a' is provided to permit insertion of a screw driver to turn the screw that enters the hole a<5>. The block A is secured by screws a<1> to transverse frame bars C.
Patent GB-692286-A (GB)
Title: Improvements relating to hydraulic couplings
IPC: F16D33/00
Filed: 1951-05-23
Abstract: 692,286. Hydraulic couplings. VOITH GES., J. M. May 23, 1951 [Oct. 1, 1948; June 10, 1949], No. 12084/51. Class 69(ii) In a hydraulic coupling the ratio of the smallest diameter to the largest diameter of the blading of the impeller is larger than 0.4 and the bladed space within the runner communicates with a container situated substantially within the internal diameter of the impeller blading via apertures which are situated on a diameter corresponding to the internal diameter of the blading of the impeller. An impeller 21, Fig. 4, has a ratio D 1  to D 2  greater than 0.4. The runner 23 is formed with apertures 27 between the blades, which communicate with a container 28 formed between the impeller and the shaft. Blades 29 in the container are secured to the runner 23. In another construction, Fig. 2, the runner 16 is of less internal diameter than the impeller 15 and communicates with a chamber 18 which is shielded from the runner 15 by a wall 17 secured to the runner The Specification describes several modified constructions including constructions wherein a weir divides the container into two parts, an accumulator and a container, the accumulator communicating with the runner and the container, at its largest diameter with the working space through centrifugally actuated valves. Communication between the accumulator and container may also be controlled by a centrifugally actuated valve and in a further construction the two valves are coupled for joint action. The coupling may have a larger number of blades than normal. The volume of liquid in the coupling may be less than the total volume of the coupling including the container and substantially equal to twice the volume of the space which contains the impeller blading.
Patent GB-101963-A (GB)
Title: Improvements in Wire Drawing Machines.
Inventor: CONNOR ROBERT DUNCAN
IPC: B21C1/08
Filed: 1916-08-26
Abstract: 101,963. Connor, R. D. Oct. 22, 1915, [Convention date]. Drawing wire.-In a wire-drawing machine, each block exerts on the wire only sufficient pull to draw it through the die immediately preceding it. The wire from a swift passes into a soap-box through an eccentric hole in the back, which is rotated, as shown, from the driving-shaft j, Fig. 1. The wire then passes through the first die s, round the block a a number of times to grip, and on to an extension consisting of bars b. The wire then passes under a band z or other tensioning-device, over a domed member c, through the guide-tube e, and over rollers w, x, to the next die. The final block i collects all the drawn wire, and the blocks are driven at such speeds that. until the wire is used up, it accumulates on the bars b of the intermediate blocks. Lubricant &c. may be supplied to chambers u on the die-holders to a trough 7, or to both. Hand-levers 5 enable the belt-fork to be operated from either end of the machine. Drawing tongs and grippers.-Hand-operated draw-tongs 3 and vices f, Fig. 3, on the block are provided for threading the wire through the machine.
Patent GB-494729-A (GB)
Title: Apparatus for simultaneous and independent front and rear wheel steering for vehicles
IPC: B62D7/15
Filed: 1937-04-29
Abstract: 494,729. Motor-vehicle steering-gear. SEWELL, E. F. April 29, 1937, No. 12197. [Class 79 (v)] Apparatus for simultaneous and independent front and rear wheel steering comprises a pair of bars 1, 2 arranged side-by-side and respectively connected to the front and rear steering wheels, handoperated means being adapted to lock the bars together for steering all the wheels simultaneously or to release one from the other to permit of steering by front or rear wheels alone, the rear steering-gear being locked when it is. not in use. In the construction shown the front wheels 35 are steered by the usual hand wheel 30 and linkage 32, 33, 34. The rods 1, 2 are formed with racks 3, 7 gearing with wheels 5, 9 pivoted on the frame 6 and connected by crank-pins 42 and slidable universal joints 45 to the track rods 34, 34a of the front and rear wheels. Thus when the rods 1, 2 are locked together and the front wheels are steered, the rear wheels are simultaneously swivelled in the opposite direction. When the rods are disconnected the rear wheels can be steered independently by means of a hand wheel 29 connected to the rod 2 by a sleeve 28, bevel gearing 36, 37 and a pinion 38 gearing with a rack 39 on the rod. The rod 2 can be locked either to the rod 1 for simultaneous steering or to the frame 6 by means of a block 13 slidable transversely in grooves in the rod 2 and provided with locking pins 24 adapted to engage corresponding holes 25 in the rod 1 and the frame. The block 13 is normally urged by a spring 20 to the position shown in Fig. 4 in which the rods 1, 2 are locked together, and can be moved to the right by a hand lever 26 and Bowden cable 15, so as, first, to free the rod 2 from the rod 1, and secondly, to lock the rod 2 to the frame 6 when the rear steering wheels are in the straight ahead position. The block 13 carries a pin 21 sliding in a longitudinal slot 22 in the rod 1, and a pin 14 sliding in a slot 18 in a frame member 19. The universal joint member 45 slides on the crank-pins 42 between the arms of double links 43 connected to the crank-pins and to pins 44 fixed on the frame.
Patent GB-795158-A (GB)
Title: Improvements in the production of large shaped articles from thermoplastic plastics by injection pressing
IPC: B29C45/00
Filed: 1956-04-23
Abstract: Large articles, e.g., weighing up to 50 Kg., are made from thermoplastic material, e.g., polyamides, polythene, polystyrene, polyvinyl or polyvinylidene chloride as follows.  The material is plasticized in a screw press where it is heated to the flow temperature.  It is then fed from the press into a receiver which is at the flow temperature and from the receiver it is pressed as by a piston into a mould which also is at the flow temperature. The mould is cooled at the sprue gate to completely congeal the material, immediately after injection.  The rest of the material is cooled slowly.  Several moulds and receivers may be mounted on a turntable. The material may reach its flow temperature by friction in the nozzle of the screw press.
Patent GB-1003842-A (GB)
Title: Process for laying terrazzo or concrete floors
IPC: C08L81/00
Filed: 1962-03-30
Abstract: An adhesive composition comprises in parts by weight:  100 to 800 of at least one liquid polysulphide polymer, 100 to 2000 of at least one epoxy resin, the ratio of polysulphide polymer to epoxy resin being 1 : 1 to 1 : 2.5, 8 to 300 of an epoxy curing agent, 40 to 400 of a solvent comprising 50% or more of at least one aliphatic solvent. Suggested liquid epoxy resins are those with epoxide equivalents of 150-2000. Solid epoxy resins may have epoxide equivelents of up to 4000.  Preferred polysulphide polymers are mercaptan-terminated and have number average molecular weights of 500-1000.  Suggested epoxy curing agents are dimethylaminomethyl phenol and tri-(dimethylaminomethyl) phenol. Suggested aliphatic solvents are acetone, methyl ethyl ketone and methyl isobutyl ketone and aromatic solvents are xylene, toluene and benzene.  Up to 8000 parts by weight of one or more fillers may be used, preferably neutral or slightly alkaline fillers. Such as clacium carbonates, aluminium silicate, and graphite.  The composition are used to bond concrete or terrazzo floors to their base structures.  Specification 1,003,841 is referred to.
Patent GB-446135-A (GB)
Title: Improvements in and relating to electromagnetic time element devices
IPC: H01H50/88
Filed: 1935-04-24
Abstract: 446,135. Electromagnets. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. April 24, 1935, No. 12366. Convention date, April 24, 1934. [Class 35] [See also Group XXXVII] A time-lag electromagnetic switch or other device having an armature which, when attracted to a magnetic frame or yoke, completes a substantially closed magnetic circuit in which an operating coil produces a strong magnetic flux has a magnetizable impact member secured to the armature for engagement with the frame, and means including one or more shims located between the impact member and the armature to define or constitute the equivalent of an air gap such as will produce a reluctance in the magnetic circuit less than the reluctance which would be produced by an air gap of five mils. between the frame and armature. As shown in Fig. 1 the pivoted armature 20 carries at a point opposite the end of the fixed core 14 a thin shim 36 of non-magnetic material above which is secured by screws 38 at the sides a plate 37 of magnetic material, (Fig. 3) which acts as an " impact member " for receiving the blows of the armature and protecting the shim from damage. The shim is of such a thickness that when the armature is attracted it imposes a reluctance in the magnetic circuit of the core and armature corresponding to an air gap of not more than 5 mils. in thickness. This arrangement ensures a substantial delay in decay of flux and a corresponding time lag in the release of the relay. The shim may be electroplated to the impact member. In a modified arrangement the non-magnetic shim may be replaced by laminations of magnetic material the minute air gaps between which laminations produce a reluctance in the magnetic circuit equivalent to that produced by the shim 36. Specification 251,671, [Class 38 (iii)], is referred to.