baber/WOPTO huggingface dataset:
Patent GB-998829-A (GB)
Title: Gas-generating composition and method of making same
IPC: C08G63/91
Filed: 1963-06-28
Abstract: A gas - generating composition comprises ammonium nitrate powder as an oxidizer and a cured carboxyl-terminated linear or slightly cross-linked polyester as a fuel-binder, the polyester being the condensation product of a polycarboxylic acid and a polyhydric alcohol and having a molecular weight of 500 to 5000 prior to curing. Lists of suitable polyhydric alcohols and polycarboxylic acids are given.  The liquid polyester may be mixed with the ammonium nitrate and a curing agent and cured by heating at 100-150 DEG  C.  Suitable curing agents are heterocyclic compounds containing a plurality of epoxy or imine groups, several specific compounds being given. Certain specified amines may be added as curing catalysts.  In examples, the polyester is made by reacting diethylene glycol with an excess of adipic acid; tris[1 - (2 - methyl)aziridinyl] phosphine oxide, N,N1 - hexamethylene - bis - 1 - aziridine -carboxamide, and 1,11-(sulphonyldiethylene)bis-2-methyl-aziridine are used as curing agents, 4,41-methylene dianiline as a curing catalyst, and barbituric acid as a combustion catalyst.  The cured composition is useful in starters for jet engines, hydraulic pumps, and alternators in electrical power systems, and in starters for turbo-pumps and for pressurizing fuel tanks in liquid propellant rocket systems.
Patent GB-839867-A (GB)
Title: Treatment of cellulose esters
IPC: C08B3/22
Filed: 1956-08-24
Abstract: Particles of a saturated aliphatic dicarboxylic or aromatic dicarboxylic ester of cellulose or of a cellulose derivative are decolorized by contacting them with an aqueous 0.5-1% solution of a water-soluble permanganate containing not more than 0.5% by weight of permanganate based on the weight of the ester and either not containing an added acid or containing an added inert weak acid (i.e. a weak acid not affected by the permanganate, e.g. acetic acid or phosphoric acid), the treatment being continued until the ester is uniformly brown, but for not more than 1 hour, and then removing the brown colour from the ester with an aqueous solution of a reducing acid which converts manganese dioxide into soluble manganese salts. The particulate ester may be immersed in the permanganate solution and, after it has acquired a uniform brown colour, may be separated from the used permanganate solution and then treated with sulphurous acid, or sulphur dioxide may be passed into the used permanganate solution containing the treated ester of uniform brown colour.  The treatment of cellulose acetate phthalate is described, the preferred permanganates being ammonium, sodium and potassium permanganates. Specification 722,594 is referred to.
Patent GB-158055-A (GB)
Title: Means for attaching spectacle and like lenses to their mounts
IPC: G02C1/02
Filed: 1919-10-22
Abstract: 158,055. Barker, R. W., (Groundwater, C. L.). Oct. 22, 1919. Disc apparatus.-Slots are formed in the edges of spectacle lenses by a rotating disc o, the lenses being held in a pivoted carrier k and gripped by a screw clamp l as shown. Rotation of the carrier k round the pivot n brings both sides of the lens into contact with the grinding wheel o.
Patent GB-190562-A (GB)
Title: A grinding attachment for lathes
IPC: B24B27/00
Filed: 1921-10-01
Abstract: 190,562. Portway, A. P. Oct. 1, 1921. Round holes, enlarging and trueing. -An attachment for lathes &c., for grinding cylinders &c., comprises a grinding-disc 7 carried by a spindle 6 forming an extension of the spindle 5 of an electric motor 4, which is mounted in a cradle 3 formed on a slide 2 and held therein by a detachable strap 3<a>. By means of a screw 12 and a graduated hand-wheel 14 thereon, the slide is adjustable transversely on guides 11 formed on a faceplate 1, which is mounted upon the lathe spindle. Current is led to the motor by slip-rings 9 mounted on the face-plate and engaged by stationary brushes. The spindle 6 has at its outer end a conical journal 6<a>, which runs in a bearing 20 supported in the split outer end of a rigid sleeve 19 secured to the casing of the motor, and the bearing may be adjusted by a tapered nut 23. The spindle 6 is connected to the spindle 5 by a muff coupling 21 and a screw 22, access to which may be had through an opening 25 formed in the sleeve 19 and provided with a cover 26. Longitudinal movement of the spindle 6 is limited by a collar 24 fixed within the sleeve.
Patent GB-944862-A (GB)
Title: Improvements in and relating to photographic apparatus
IPC: G03B1/48
Filed: 1962-07-06
Abstract: 944,862. Photographic apparatus. AGFA A.G. July 6, 1962 [July 11,1961], No. 26105/62. Heading G2A. A film strip 4 is guided between a support 5 and a pressure plate 2, the latter being resiliently mounted on the camera body 1 by springs 3. Support 5 has flat surfaces 6 for supporting the film, with step risers 7 adjacent the surfaces 6. The pressure plate 2 has a slight depression corresponding to the central image area, bounded by step risers 8 at each side. The various steps form edges for line contact with the film, which in the case of Fig. 1 extend transversely to the direction of film transport. The film, when clamped between these edges, adopts the curved configuration shown This causes it to bear on the central flat surface 11 of the pressure plate 2, so ensuring its flat and accurate location in the image plane, which is independent of the thickness of the film, or backing paper. Beyond the bounding flat surfaces 9 of the pressure plate are rollers 10 which have the effect of a further stepped portion co-operating with the risers 7 to cause a further curvature of the film and so prevent its being damaged in transport. A suitable pressure for the springs 3, and dimensions for the various risers, are specified. Fig. 2 (not shown) is a modification in which the line contact edges extend in the direction of film transport.
Patent GB-986478-A (GB)
Title: Medicinal applicator
Inventor: GLASSON ROY ACTON
IPC: A61M5/28
Filed: 1962-07-06
Abstract: 986,478. Ampoules. JOHNSON & JOHNSON. July 4, 1963 [July 6, 1962], No. 26120/62. Heading A5R.  An ampoule 1 for use as a medicament container portion of a hypodermic syringe comprises a hollow body portion 2 of flexible material (e.g. polyethylene), shoulder or skirt 3 and nozzle 4, the nozzle 4 being angularly inclined to the body portion 2 and adapted to receive a hypodermic needle mount 9. The skirt 3 is preferably inclined to the body portion 2. The nozzle may be made of thicker material than the skirt and the skirt of thicker material than the body portion 2. The body portion may be heat-sealed at end 6 and provided with embossings 5 to ensure a better grip. A diaphragm may be present in the ampoule, which diaphragm is pierced by the needle when mounted on the nozzle. The ampoule may be covered by cap 8 when not in use.
Patent GB-771297-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K27/06
Filed: 1955-09-13
Abstract: 771,297. A.C. commutator machines. BRUNT, C. H. Sept. 13, 1955, No. 26122/55. Class 35. The speed of a shaft 6 is continuously variable between low and high values when driven by a repulsion motor comprising armatures 7, 8, with commutators 9, 10, having short-circuited brushes mounted on rings which are angularly adjustable through 90 degrees for the same direction of rotation, or through 120 degrees if the motor is to be reversible. The armatures are mounted on the common shaft, and field windings 16, 18, co-operate with the armatures 7, 8, respectively, these field windings being connected to a three-phase supply by placing winding 16 across two phases, and the winding 18 across one of these phases and the remaining phase. A single commutator 19 common to both armature windings may replace the separate commutators. In a modification, three armatures are mounted on a common shaft with a common commutator 28 for two of the armature windings and a separate commutator 30 for the remaining winding. The field windings 31, 32, 33, are connected across different pairs of phases of a three-phase supply. In a further arrangement, two repulsion motors are coupled through toothed gear wheels with a single wheel on a common output shaft, Fig. 9 (not shown), or three motors may be so coupled, Fig. 10 (not shown). Three motors may have their shafts coupled in alignment, Fig. 11 (not shown). In the case of a motor having three separate field windings or three motors each having a separate field winding, each winding may be connected across a neutral and a different phase of the same three-phase supply.
Patent GB-173829-A (GB)
Title: Improvements in or relating to the bodies and hoods of motor road vehicles
IPC: B60J7/16
Filed: 1920-09-13
Abstract: 173,829. Horne, K. Sept. 13, 1920. Hoods; bodies.-A hood for a motor road vehicle is adapted to be moved as a single unit and without any separation and dismemberment of parts to and from a non-protective position within the body of the vehicle and a protective position in which it co-operates with the windscreen to enclose the passengers completely. The hood pivots about a transverse axis and subtends thereat an angle greater than a right-angle. Fixed to each side member a of the chassis is a bracket b having an horizontal arm d supporting the seat and a vertical arm c to which is pivoted at k the support e for the hood f. In elevation. the outlines of the seat-back i and a shield p behind the 'hood in its inoperative position are usually circular and concentric with the pivots k, but the shield may be slightly eccentric therewith. The hood is lowered by turning it about its pivot k until it fits between the rear of the seat and the shield p when its side panels l flank the seat.
Patent GB-1426364-A (GB)
Title: Shock-absorging buffers
IPC: B66C7/16
Filed: 1973-06-01
Abstract: 1426364 Hydropneumatic buffers FRIED KRUPP GmbH 1 June 1973 [3 June 1972 28 Nov 1972 6 April 1973 2 May 1973] 26241/73 Heading F2S An hydropneumatic buffer for a lift (Fig. 1) or a crane (Fig. 4) comprises a housing 1, a bellows 5 in the housing which encloses a volume of liquid, and a hollow cylindrical tube 11 which projects from the housing contains gas, and a liquid chamber in communication with the liquid in the housing and is movable into the housing on impact, the tube 11 being connected at its end which extends into the housing to the adjacent end of the bellows. In all embodiments apart from Fig. 1, the gas is in direct contact with the liquid in the tube 11. In the embodiment of Figs. 2 and 3 (not shown) the tube 11 is divided by throttled partitions, through which a mixture of gas and liquid pass. In the horizontal buffer of Fig. 4, liquid enters the hollow tube 52 on impact via throttles 60 and a flexible non-return valve member 62, and collects in the lower part of a reservoir 66. After impact, liquid returns to the bellows 57 via a tube 69 and a non-return valve 70. Extension of the unit after impact may be aided by a coil spring (not shown). A rib 71 on the tube 52 ensures correct orientation of the tube and housing. A rod 73 ensures that the buffer is supported even when fully extended.
Patent GB-425841-A (GB)
Title: Improvements in or relating to the manufacture of thioindigo dyestuffs
IPC: C09B7/10
Filed: 1933-09-22
Abstract: In the production of thioindigo dyestuffs from diazotized o-aminoarylthioglycollic acids by producing first the o-cyanothioglycollic acid and then the 3-aminothioindoxylate, the o-cyanoarylthioglycollate obtained by reacting the diazotized o-aminoarylthioglycollic acid with cuprous cyanide is treated directly without isolation with alkali sulphide, the reaction liquor being at least alkaline to Clayton Yellow.  In examples: 6 : 6<1>-dichlor-4 : 4<1>-dimethylthioindigo, 6 : 6<1>-diethoxythioindigo and 6 : 6<1>-dichlorthioindigo are thus obtained from 5-chlor-2 - amino - 3 - methylphenyl - 1 - thioglycollic-acid, 2 - amino - 5-ethoxyphenyl-1-thioglycollic acid and 5-chlor-2-aminophenyl-1-thioglycollic acid respectively, the 3-aminothioindoxylates being salted out and converted to the dyestuff by the customary methods.
Patent GB-1438897-A (GB)
Title: Buffer
IPC: F16F9/08
Filed: 1974-06-13
Abstract: 1438897 Shock absorbers INSTITUT FRANCAIS DU PETROLE 13 June 1974 [18 June 1973] 26272/74 Heading F2S A buffer comprises a casing 1 providing a first chamber 2 and a second chamber 3 of greater cross-sectional area, a piston assembly comprising first and second rigidly-intercon. nected pistons 13, 14, and a further chamber (12, inside the piston-rod, or 22, outside the casing, Fig. 3, not shown) partially bounded by a deformable wall 20, (23) to accommodate the piston-rod volume. Essentially the first piston 13 is formed with channels 15 and is confined to the first chamber 2, in which it is a sliding fit, and the second piston moves during its stroke from the second chamber 3 to the first chamber 2, in which it is a loose fit. In Fig. 3 a resilient sleeve surrounds the casing to accommodate liquid, and provide a return force.
Patent GB-209146-A (GB)
Title: Improvements in leather tempering machines
IPC: C14B1/40
Filed: 1922-09-29
Abstract: 209,146. Rayner, G. F., (Wright, W. C., Young, W. J., and Grover, G. B.). Sept. 29, 1922. Rendering soles flexible.-Relates to machines for rendering flexible shoe soles, &c., and in which the soles, suitably moistened, are carried between a pair of belts 59, 60 over rollers arranged in zig-zag fashion. According to the present invention the belts although running in operative relation, are at selected points held out of engagement, for which purpose the upper belt 59 is narrower than the lower 60, and the rollers over which the former runs are recessed to take it, as shown in Fig. 5; the ends 101 adjacent to the recessed portions form auxiliary rollers, and it is convenient for these to have a diameter greater than that of the recesses by twice the thickness of the belt. It is only when passing over the breaker rolls 18, 20, Fig. 3, that the belts are free to come into actual contact. The belts are arranged as shown in Fig. 3, and the rollers, except those, 15, 22, used for tensioning the belts, are geared together as shown in Fig. 1. The soles enter at the mouth A, and are discharged at the outlet B, and in the machine shown in which there is a second pair of belts 62, 63, the soles then enter the second system at the point C and are finally discharged at D; as shown there is but a single breaker roll 27 in this second system, but the number may be increased as necessary. At the entering throat A the soles are sprayed on both sides with tempering-liquid from pipes 91, 92, and they are sprayed again at the throat C, and finally at the outlet D: liquid collects in a tank 87, and is delivered by a pump 86 to the points enumerated. The soles are fed automatically; the feeding- mechanism comprises a feed-belt 68, Fig. 6, on which the pile of soles rests and which is driven from the main belt-carrying roller 21 and at approximately the same surface speed, so as to feed the lowest member of the pile towards the throat A. The mechanism is mounted on a pivoted frame 63 pressed upwards by a spring 74, the extent of the upward movement being controlled by a stop 76. In front of the feedmechanism is mounted an apron 79 adjustably positioned as regards its height and provided with a rounded lower edge; when the lowest sole passes under the edge of the apron the frame 63 yields under the resilient action of the spring, but at the same time the action of the spring prevents the passage of more than one sole.
Patent GB-1005264-A (GB)
Title: Rotary piston type compound internal combustion engines
IPC: F02B3/06
Filed: 1962-07-09
Abstract: 1,005,264. Rotary piston internal combustion engines. YANMAR DIESEL ENGINE CO. Ltd. July 9, 1962 [July 10, 1961], No. 26350/62. Heading F1F. A rotary piston compound I.C. engine, comprises an engine housing 1, having two separate two-lobed epitrochoidal inner profiled walls slidably engaged by generally triangular pistons 3, 5 eccentrically and rotatably mounted on parallel shafts 7, 9 disposed centrally with respect to the inner profiled walls. Gears 11, 13 secured to a side cover 15 and coaxial with the shafts 7, 9 mesh respectively with internal gears 17, 19 fixed to the respective pistons and gears 21, 23 fixed to the shafts, 7, 9 mesh with a common intermediate gear 25 so that the two pistons rotate at the same speed and in the same direction and at a speed ratio of 3 to I with respect to the shafts. Air sucked in through a port 27, is, on rotation of the piston 5, compressed and transferred through ports 29, 31 into a working chamber associated with the piston 3. This air is further compressed by the piston 3 and when the chamber is at its smallest volume fuel is injected when passing the fuelinjection nozzle 39. The gases of combustion then expand to rotate the piston 3 until a port 33 in communication with a port 35 is opened, whence the hot gases are transferred through these ports to a working chamber associated with the piston 5 to be further expanded to drive the piston 5 before being finally expelled through a port 37. On the closure of the port 33 by the piston 5, the associated chamber is isolated so that when this chamber again increases in volume the pressure therein falls below atmospheric and the temperature rises. The generated heat on the next opening of the port 31 then raises the temperature of the incoming air to assist combustion, particularly on starting. The present invention allows of much higher compression ratios, which are necessary when operating on a diesel cycle, to be obtained.
Patent GB-884679-A (GB)
Title: Preparation of derivatives of panto-thenic acid
IPC: C07C233/46
Filed: 1958-08-15
Abstract: Derivatives of pantothenic acid are obtained in a process which comprises condensing in the presence of a solvent a ,g -dihydroxy-b ,b -dimethylbutyramide with a derivative of b -alanine containing a reactive amino group, the said amino group having been rendered reactive by suppressing the betaine character of b -alanine by converting the -COOH group thereof into a non-acidic functional derivative, and the solvent being polar and substantially anhydrous at least when a hydrolysable derivative of b -alamine is employed. As b -alanine derivative there may be employed sodium b -alanate, calcium b -alanate, b -alanine methyl ester, b -alanine ethyl ester amides of b -alanine and b -amino-propionitrile.  As solvents there may be used methyl alcohol, ethylene glycol monethyl ether, formamide, acetonitrile, dioxane and dimethyl formamide.  Detailed examples are given.  Specifications 566,858, 803,769 and 884,678 are referred to.
Patent GB-1432796-A (GB)
Title: Method of adjusting end float in tapered roller bearings
IPC: F16C25/06
Filed: 1973-06-02
Abstract: 1432796 Attaching hubs to axles FORD MOTOR CO Ltd 2 June 1973 26406/73 Heading B7C [Also in Division F2] A method of adjusting the clearance between an internally threaded nut 5 screwed on to a threaded part 3 of a wheel spindle 1 on which the inner race 7 of a tapered roller bearing 9 is mounted and the inner race comprises (a) mounting a tool 21 on said nut, which tool has a flange 23 adapted to engage the face of the nut remote from the bearing and an end portion 25 adapted, when the flange engages the face, to project axially beyond the nut towards the bearing a predetermined distance D, (b) turning the nut on the spindle until the portion 25 applies a load to the bearing and a predetermined torque is required to turn the nut, (c) preventing unscrewing of the nut on the spindle (by for example a locking washer 27 and a lock nut 29) and (d) removing the tool from the nut. The nut may be externally threaded to receive the tool, as shown.
Patent GB-392594-A (GB)
Title: Improvements in and connected with machines for making sheet metal containers
IPC: B21D51/26
Filed: 1931-09-22
Abstract: 392,594. Making cans. ADAMS, F. E., The Grove, Lower Bebington, Cheshire, and GEE, L. F., Moor Lodge, Moor Lane, Great Crosby, Lancashire. Sept. 22, 1931, No. 26433. [Classes 83 (ii) and 83 (iv).] Sheets are bent to cylindrical form in the formation of can bodies in a three-roll bending device, the free edges being caused to engage about a supporting bar along which the bodies are conveyed to further operating mechanisms. Curving.-S heets are fed from a table 101 one at a time to rolls 103, 103x, Figs. 3 and 6, by which they are formed to cylindrical shape, the edge of a sheet striking a pivoted member 122 which is raised thereby and assists in forming the body. After passing through the rolls, the body Ox falls, together with the arm 122, until it rests on a flange 123, a rib 124 extending through the longitudinal opening. The curving roll 103x, Fig. 3, is supported on levers 114, 116, the end of lever 116 bearing in notches of a cam 117 for adjustment of the roll. Angular bending; formers.-The body is fed along the rail 124 and on to a mandrel 130, on which it passes to the longitudinal seam forming mechanisms. The bodies are conveyed by fingers on bars 200, Fig. 7, reciprocated by shoes 202 from a link 210. Pins 203 on the bars 200 engage slots in bars 205 which are movable simultaneously towards and away from each other during the passage of the bodies. The end 211 of the link, engaging about the pin 212, is of semi-circular shape, and is normally held in engagement therewith by a spring-pressed plate but swings downwardly in the event of jamming to strike a member of suitable form to actuate a stop mechanism. The mandrel is supported by a plate 131, and varies in form along its length to co-operate with the successive tools. A pivoted bending tool 135, Fig. 9, forms the first longitudinal hook, the mandrel having a co-operating part 133, and a central member 134 pressed outwardly by a spring 134x. The second hook is formed by a pivoted tool 138, Fig. 10, engaging a recess 137 in the mandrel, an engaging plate 142 being resiliently pressed towards the work. Fingers pivoted about rocking shafts engage the work during these operations. Seaming.-The body is fed by the conveyers to a part of the mandrel 130x for securing the longitudinal seam. It is passed over a member 170 which has been urged to the left by a cam-ended lever 172 and is then allowed to return to the right under the action of a spring 171 to urge the body against a stop 175, which is raised by levers together with a gauge abutment 177, Fig. 20, while members 176, similar to the supporting members for the bending operations, engage the sides of the body. Lever &c. actuated tools 166, 183, and a spring-pressed abutment 181 of the mandrel 130x then co-operate to unite the ends and seam them. The overhanging portion of the mandrel is supported by pivoted hooks during the seaming operation. The bodies then pass to mechanism which may include devices for flanging the bodies and securing ends thereto.