baber/WOPTO huggingface dataset:
Patent GB-835413-A (GB)
Title: Improvements in suspensions of vehicles
IPC: F16F9/06
Filed: 1956-06-14
Abstract: 835,413. Road-vehicle spring suspensions; pneumatic suspension units. SOC. DES BREVETS J. A. GREGOIRE. June 14, 1956 [June 15, 1955; Jan. 9, 1956], No. 18401/56. Classes 108(2) and 108(3) The suspension of each road wheel comprises a mechanical spring 3 the rate of which is practically constant, and a pneumatic spring 45 of variable, rate, the rate of the suspension as a whole varying in a linear manner with reference to the load. The spring may be a leaf spring, as shown, or alternatively a torsion bar, rubber, or coil spring. The pneumatic spring comprises a hemispherical shaped member 44 of metal rigid with the chassis frame 2, and a correspondingly shaped diaphragm 46 of rubber which is in abutment with a member 53 rigid with the axle 1. When the vehicle is unloaded and at rest the pressure in the pneumatic spring is equal to that of the atmosphere, nearly all the load being taken by the spring 3. In a modification the spring 45 is replaced by a combined pneumatic suspension unit and hydraulic shock absorber (Fig. 2). This comprises liquid chambers 17, 18, connected by one-way valve and restricted passages 21, 22, and a chamber 15 in which air is compressed by the action of a piston 12. On compression of the device, liquid displaced from the chambers 17, 18 is displaced into a central tube 23. In a modification of this device (Fig. 4, not shown), the chambers 15 and 17 provide the hydraulic chambers of the unit and the chamber 18 contains compressed air to function as the pneumatic spring. The chamber 15 also contains some air to compensate for entry of the piston rod 23 into the chambers 15 and 17 on compression. In this connection the piston rod is solid and the valves 21, 22 are formed in the piston 12.
Patent GB-1436590-A (GB)
Title: Quinoxalium salts
IPC: C07D491/04
Filed: 1973-12-03
Abstract: 1436590 Quinoxalinium salts CIBA-GEIGY AG 3 Dec 1973 [5 Dec 1972] 18419/75 Divided out of 1436589 Heading C2C The invention comprises compounds I when R<SP>11</SP> 1  and R<SP>11</SP> 2  are hydrogen, alkyl or aryl optionally substituted by halogen, alkyl, hydroxyl, alkoxy, nitro, amino, cyano, carboxy, carboalkoxy or carboxylic amide groups; R<SP>11</SP> 3 , R<SP>11</SP> 4  and R<SP>11</SP> 5  are hydrogen, alkyl, alkoxy or nitro, at least one being different from hydrogen, or R<SP>11</SP> 3  and R<SP>11</SP> 4  or R<SP>11</SP> 4  and R<SP>11</SP> 5  can together form a heterocyclic ring. The salts are formed by conventional methods used for the preparation of quaternary ammonium salts. The novel compounds comprise components of redox pairs used in the photopolymerization of ethylenically unsaturated compounds.
Patent GB-160707-A (GB)
Title: Combined cutter-guard and pressure rollers for hand-feed over-hand wood planing machine
IPC: B23Q3/00
Filed: 1920-07-03
Abstract: 160,707. Pendlebury, T. July 3, 1920. Planing.-The cutter A of a hand-fed overhand wood-planing machine is guarded by a pair of smooth rollers C, D, which are never more than one-eighth of an inch apart. One roller C is carried by pivoted arms F and the other D by brackets E riding on the pivots of the roller C. Stops G prevent the rollers from descending too low. The arms F may be turned about their pivots L to put the guard out of use, or the pivots may be readily sprung out of their sockets in the frame and the guard removed entirely.
Patent GB-516139-A (GB)
Title: Improvements in and relating to the manufacture of composite bricks and the like
IPC: B30B11/02
Filed: 1938-06-21
Abstract: 516,139. Moulding composite bricks &c. REED, G. W. June 21, 1938, No. 18456. Convention date, June 21, 1937. [Class 87 (ii)] A machine for making composite bricks &c. from different materials, comprises a mould 44 or 144, provided with a movable lower platen 34 arranged to be brought flush with the top of the mould, a charger 60 arranged to reciprocate across a smooth surface flush with the top of the mould into a position above the mould and to slide a charge of material over the surface until it rests on the platen, and a movable partition 78, 106 mounted on the charger so as to be' carried down with the charge into the mould as the lower platen is lowered. In the form shown in Fig. 8, the partition 78 is pivoted to the charger and falls automatically as the charger moves to the left. As the charger moves to the right, material from the left compartment of the charger continues to fall into the mould, while the material from the right compartment is engaged by the partition 78. In the form shown in Fig. 2, the vertically-movable partition 106 smooths the material that is flush with the top of the mould. The lower plunger then descends further, and material from the left compartment of the charger covers the material from the right compartment. Specification 316,362, [Class 144 (i)], is referred to.
Patent GB-405250-A (GB)
Title: Improvements in the production of solid carbon dioxide
IPC: C01B32/55
Filed: 1932-06-30
Abstract: <PICT:0405250/III/1> An absorption refrigerating-machine is used to liquefy or solidfy carbon dioxide in the solidification of the gas as snow or ice. The gases from a boiler furnace a pass through a scrubber d to a column e where the carbon dioxide is absorbed by soda solution, the nitrogen passing off.  The soda solution passes through a heat exchanger g<2> to a sprinkler in an evaporating chamber g where it is heated by a steam coil t supplied by the boiler, the soda solution being pumped back through the exchanger and re-supplied to the absorption column.  The gas passes to a heat exchanger h and a water-cooled cooler i wherein condensed water vapour is trapped off, the gas being moderately compressed by a single-stage compressor j, cooled by water in an exchanger k, passed through an exchanger l cooled by the expanded gas and finally passed through the refrigerating chamber m of an absorption refrigerator, and expanded into a chamber p to form snow.  The residual gas cools the exchanger l and passes back to the compressor.  The exchanger h is located in the generator q of the refrigerator which is also heated by a steam coil from the boiler, which may also supply steam for driving the compressor. In a modification, the soda solution is evaporated in the boiler producing gas under pressure which after condensation and removal of water is liquefied in the absorption refrigerator and the liquid frozen in moulds.  The soda solution circulates between the boiler and the absorption column through the two sides of a heat exchanger.  Various specified temperature and pressure conditions may be employed in the process.
Patent GB-309345-A (GB)
Title: Improvement in picture projecting apparatus
IPC: G03B23/06
Filed: 1928-06-26
Abstract: 309,345. Mathys, A. W., (Husberg, P. A.). June 26, 1928. Transparencies, travelling; optical-projection apparatus, applications of. - A slide-changing device for optical-projection comprises a horizontal magazine 3 intermittently rotated by a continuously rotating disc 12, the periphery of which meshes with a tooth space of, and holds in position, a toothed wheel 15 till a bent tongue 14. on the disc engages the next tooth space and moves the wheel and magazine. The magazine 3 consists of a disc having radial slots 4 near its edge and a groove round its rim to receive a wire girdle 5 which acts as a series of bearings for transparency carrying plates 6. The plates 6 are notched at 7 to take over the wire 5, their inner ends moving freely in the slots 4. The outer ends of the plates 6 rest on a helical guide 16 surrounding the magazine, and are gradually raised as the magazine turns till they reach the highest part 16<1> of the guide. A step 17 is provided on to which the plates drop before falling on the lowest part 16<2> of the guide. While on this step the transparency is in the light beam of the optical projector 10, 11. The transparencies 8 and the. plates 6 are removable.
Patent GB-452280-A (GB)
Title: Improvements in and relating to the ventilation of enclosures
IPC: F24F11/00
Filed: 1935-01-18
Abstract: 452,280. Ventilating-apparatus. CARRIER ENGINEERING CO., Ltd., and SAINTY, C. L., 24, Buckingham Gate, Westminster. Jan. 18, 1935, Nos. 18624/36 (divided out of 450,538) and 3384/36. [Class 137] The floors or zones of a large store or building in which the number of visitors and thus the heat liberated on each floor, is constantly varying, are ventila ted by an installatior which comprises a main duct II having branches 13, 13A to the several floors III the main duct being of relatively large cross-section so as to assure independent control of the branches leading to each floor. A central con-' ditioning plant 3 and fan 4 supplies the main duct, a fan 8 being provided in each branch to recirculate the air through ducts 9, 12, and draw in fresh conditioned air through duct 13. Control valves 14, 15 are operated by a thermostat 16 in the enclosure. To maintain the pressure in the duct II constant automatic means such as are described in Specifications 344,914 or 418,748 may be used. Specification 450,538 describes similar apparatus when employed to ventilate rooms or zones of a multiple room building grouped according to solar radiation. Heaters or each floor may be associated with the control valves 14, 15 and the supply of heating fluid co-ordinated with the air supply. Specification 355,576 also is referred to.
Patent GB-1495414-A (GB)
Title: Cameras
IPC: G03B17/04
Filed: 1975-03-04
Abstract: 1495414 Film winding mechanisms WHAKING INDUSTRIES (MECHANICS & OPTICS) Ltd 4 March 1975 [10 Jan 1975] 18673/77 Divided out of 1495411 Heading G2A The description and drawings are identical with those of Parent Specification 1495411, but the claims are directed towards the actuation of the film winding mechanism as the view-finder housing 2b is moved relative to the main housing 2a.
Patent GB-1199672-A (GB)
Title: Process for Controlling Melt Flow of Rubber-Modified Polymers
IPC: C08F2/18
Filed: 1968-04-19
Abstract: 1,199,672. Graft polymerization process. DART INDUSTRIES Inc. 19 April, 1968 [20 April, 1967], No. 18694/68. Heading C3G. A vinyl or vinylidene monomer is polymerized with a rubbery material to form a rubbermodified polymer therefrom by a method comprising contacting in a reaction zone (a) at least one monomer and said rubbery material, (b) at least one monomer, said rubbery material and a diluent, (c) at least one monomer and said rubbery material suspended in an aqueous system containing a suspension stabilizer, (d) a prepolymer mixture comprising at least one monomer, said rubbery material and up to 50% by weight of said rubber-modified material, (e) a prepolymer mixture comprising at least one monomer, said rubbery material, a diluent and up to 50% by weight of said rubber modified polymer or (f) a prepolymer mixture comprising at least one monomer, said rubbery material and up to 50% by weight of said rubber-modified polymer suspended in an aqueous system containing a suspension stabilizer, with a chelating agent containing at least one free acid group per molecule and a mercaptan chain regulator in the presence of water, the said regulator being present in an amount of from 0À01 to 2% by weight, based on the total weight of the reaction mixture, carrying out a bulk, solution and/or suspension polymerization on the resulting mixture and recovering a rubber-modified polymer therefrom. Specified rubbers are natural rubber, homopolymers of butadiene or isoprene, copolymers of butadiene and styrene or acrylonitrile, copolymers of isobutylene and isoprene or butadiene, and rubbery ethylene-propylene-diene terpolymers. Suitable monomers are styrenes, acrylic acid and methacrylic acid and nitriles and methyl esters thereof, and vinyl chloride. The chelating agent may be ethylene diamine tetracetic acid (EDTA), methylene disalicylic acid or salicylic citric, tartaric, ascorbic or phosphoric acid. The mercaptan is preferably a C 6  to C 24 -alkyl mercaptan. Examples are given of (i) poly merizing styrene and acrylonitrile containing dissolved polybutadiene in the presence of EDTA, EDTA trisodium salt, citric acid or tartaric acid, t-dodecyl mercaptan and water to form a prepolymer which is then suspended in an aqueous medium for completion of polymerization, , (ii) similarly polymerizing styrene in the presence of polybutadiene using EDTA trisodium salt and t-dodecyl mercaptan, (iii) similarly polymerizing styrene and acrylonitrile in the presence of polybutadiene, EDTA and t-dodecyl mercaptan, an additional amount of said mercaptan together with n-dodecyl mercaptan being added during the prepolymerization step. In some cases the chelating agent is not added until the suspension polymerization step.
Patent GB-350252-A (GB)
Title: Improvements in or relating to means combined with small arms for measuring angles for sighting purposes
IPC: F41G1/473
Filed: 1930-06-19
Abstract: 350,252. Smallarms. DAHLBERG, L. E. M. C., I. 6, Kristianstad, Sweden. June 19, 1930, No. 18789. [Class 119.] The breech-bolt handle of a smallarm is provided with a series of graduations whereby the angles subtended between the lines of sight to two or more objects may be determined. According to one construction, the handle 1 of a breech-bolt has a series of circumferential lines 2. The spherical end 3 of the handle has also a number of lines 4, which lines are substantially horizontal when the handle is in its normal horizontal position. Each line may be of a different colour from the others in order to distinguish one from another, or alternatively they may be indicated by numbers or degrees. In operation, the position of some unmarked object is communicated to a marksman by indicating the number of degrees or divisions on the handle which the object is displaced horizontally and vertically from some other visible object. In firearms having rotary breech-bolts, the handle may be turned to its vertical position to ascertain the vertical angle of the objective. A piece of metal, a protuberance, or the like, is placed on the stock of the firearm against which the marksman should place his cheekbone when measuring the displacement angles, so that the distance between his eye and the handle 1 is practically constant. In a modification, a transparent sleeve, which may be longitudinally split and is graduated as above, is slipped over the handle. According to another modification, a number of narrow split rings are used, while in a further modification a spirally wound strip is used. The transparent sleeve may have a longitudinal ridge in order that the lines thereon may stand out sharply, and the surface of the sleeve may be wholly or partly dull to prevent reflection in strong sunlight.
Patent GB-615576-A (GB)
Title: Improvements in or relating to high frequency oscillators
IPC: H03K3/78
Filed: 1946-06-24
Abstract: 615,576. Keying carrier frequencies; generating high-frequency oscillations; valve generating circuits. PREIST, D. H. June 24, 1946, No. 18870. Convention date, June 28, 1945. [Classes 40 (v) and 40 (vi)] In a high-frequency oscillator comprising a transmission line resonator 5, 11 coupled to a thermionic valve 1, a transient oscillation is generated by means of generator 24 and sparkgap 18, 20 in the resonant circuit at or immediately before the instant of application of a power supply to the valve, the power supply reinforcing the transient oscillation, whereby an oscillation is maintained in the circuit whilst the power supply is operative. Fig. 1 shows the H.F. oscillator using sections of coaxial line as tank circuits. The plate tank circuit comprises the inner surface 11 of element 7 and outer surface of element 5, while the cathode tank circuit comprises the inner surface 13 of element 7 and the outer surface of element 10, partition 12 isolating the two and a feedback path being provided comprising small fingers 9 of conducting material. The member 15 suppresses the second harmonic, its length being a quarter of the wavelength of the second harmonic. A transient oscillation is set up by applying an impulse from the impulse generator 24, through a modulator 27 to the electrodes 18, 20 causing a spark. At the same time impulses are applied to the plate 4 of the valve 1 through a choke 6, thus reducing and stabilizing the time delay between the activation of the oscillator and establishment of constant amplitude oscillation therein. In a modification (Fig. 3, not shown), employing a Colpitt's oscillator, a time delay is introduced in the plate circuit so that the impulse causing the spark sets up oscillations before the maintaining impulses are applied to the plate of the valve.
Patent GB-290858-A (GB)
Title: Improvements in or relating to the regulation of the rate of fire of automatic fire-arms, particularly machine guns
IPC: F41A19/03
Filed: 1927-07-16
Abstract: 290,858. Etablissements Braekers Soc. Anon., Francart, R., and Drock, A. July 16, 1927. Addition to 235,856. Machine guns. - A device for operating fhe firing mechanism of an automatic gun at regulable speed controlled by a piston reciprocating in a closed chamber containing liquid, as described in the parent Specification, has the dashpot piston and a spring-loaded firing slide so connected by intermediate mechanism that, on the recoil of the gun, the firing slide is first displaced independently of the dashpot piston. The head for adjusting the dashpot valve is associated with means whereby alterations in the viscosity of the oil in the dashpot. cylinder can be compensated for. As shown in Figs. 1, 2, and 3, the device comprise a body formed with two parallel cylinders 2, 6 containing respectively a dashpot piston 3, Fig. 2, and a firing slide 7, Fig. 1. The firing slide 7 is connected to a lever 8 adapted to be turned, when the gun recoils, to move the slide forwards against a spring 9. Towards the end of the forward movement, a pawl 10 on the slide engages one arm 17 of a cranked lever 15 - - 17, the other arm 15 of which is connected to the piston, so that the return stroke of the slide is controlled by the dashpot. At the end of the return stroke, the slide strikes the lever 36, 37, which operates the firing mechanism of the gun. On the piston is mounted a disc valve 4 which is pressed by a spring 27 against a stop shoulder 28 to close more or less an opening in the piston during the operative stroke. The position of the stop can be adjusted, to regulate the normal size of the opening and therefore the speed of firing, by screw mechanism operated by a head 35. A scale disc on the head can be angularly adjusted to compensate for difference of viscositv of the oil in the dashpot due to changing temperatures. In a modification, the length of stroke of the piston is adjusted instead of the opening of the valve. Specification 277,148 also is referred to.
Patent GB-1473093-A (GB)
IPC: A01G9/10
Filed: 1974-07-18
Abstract: 1473093 Plant pots ORBIT PLASTICS Ltd 18 July 1974 [19 April 1973] 18915/73 Heading A1E In a battery of non-porous plant pots, vacuum formed in a plastics sheet, each pot has a base formed with an internal annular trough across which at least one lateral slot extends to permit lateral drainage through the outer walls of the trough. In one embodiment, the trough 13 having slots 15 is formed by raising the central base portion 12 of the pot 10. The plastic sheet, which is surrounded by a reinforcing rib, has slits or lines of weakening to facilitate separation of the pots.
Patent GB-571930-A (GB)
Title: Improvements in or relating to electrical insulators
IPC: H01B17/34
Filed: 1943-11-15
Abstract: 571,930. Insulators; mounting terminals. JOHNSON & PHILLIPS, Ltd., and STEVENS, C. J. H. Nov. 15, 1943, No. 19004. [Classes 36 and 38 (i)] A lead-in insulator 1, for an oil &c. container, has its inner end writhin the container and immersed in the oil which enters a central bore a, escape of oil from the other end outside the container being prevented by a seal 6 between the insulator 1 and the conductor 2, the seal 6 and cap 4 being conical so that the thrust of the cap compresses the seal against both the insulator and the conductor. A non-circular collar or nut 3 on the conductor is housed in the insulator and the packing 6 is compressed by the cap 4 into an annular groove f. The insulator has a flamge 12 sealed by a clamp ring 15 to the wall 13 of a cable box secured to the container.
Patent GB-351240-A (GB)
Title: A dish washer
IPC: A47L17/10
Filed: 1930-06-21
Abstract: 351,240. Holding tools for use in washing plates. KESSELS, E. J., 14, Penn Road, Holloway, London. Jan. 21, 1930, No. 19020. [Classes 61 (ii) and 138 (i).] To enable plates, dishes, saucers, or like articles to be washed without wetting or soiling the hands, the article is supported in a holder comprising a wire structure and a handle. As shown in Figs. 1 and 2, two frames a<1>, c<1> of the shape indicated have a common base a<3> and the smaller frame c<1> is cranked at the sides for the plate or the like to rest upon and a handle is provided at f. Feet e<1> serve to rest on the bottom of the washing tank, sink or the like. The frame c<1> is cranked at g<2> to prevent the article of crockery falling out while it is being mopped. The article is free to move round during this action and sleeves or rollers on the wires may be provided to assist this. In a modification which may be used in series in the oscillating part of a complete dish-washer rack, such as is described in Specification 330,426, [Class 138 (i), Washing and cleaning buildings &c.], the sides of the larger frame are continued upwardly and form a handle on top instead of at the side.
Patent GB-190531-A (GB)
Abstract: 190,531. Welch, W. H., and Frost & Co., Ltd., H. Sept. 21, 1921. Tyres, elastic, and tyre covers, tools for removing and replacing.-A tool for manipulating a split rim comprises a pair of clamps 14, 16 adapted to grip the rim ends, a cranked lever 23, 26 jointed at 21 to one of the clamps carrying a link 25 which is pivoted at 22 to the other clamp. The clamps have substantial length circumferentially of the rim, and the pivots 21, 22 are distant from the rim so as to cause the clamps to tilt and grip the rim when the lever is moved about the pivot 21.