baber/WOPTO huggingface dataset:
Patent GB-980878-A (GB)
Title: Condensation products of tetracyclines, preparations containing them and process of preparing them
IPC: A23K20/195
Filed: 1961-02-10
Abstract: The invention relates to tetracycline compounds of the general formula <FORM:0980878/C2/1> or <FORM:0980878/C2/2> in which R1 represents a hydrogen, chlorine or bromine atom, R2 represents a hydrogen atom or a methyl group, R3, R4 and R6 each represents a hydrogen atom or a hydroxyl group, R5 represents a hydrogen atom, a dimethylamino group or a quaternised dimethylamino group and R7 represents a trichloromethyl, tribromomethyl or a trifluoromethyl group, or a 4- or 5a-epi-isomer thereof or the 12a desoxy or 5a (11a)-dehydro derivative of a compound having the formula of tetracycline, 5-hydroxytetracycline, 7 - chlorotetracycline or 7 - bromotetracycline but in which the 2-carboxamido group is replaced by a group of the formula <FORM:0980878/C2/3> R7 having the meaning given above or physiologically tolerable salts of said compounds with a base.  These compounds are prepared by reacting the corresponding tetracycline which contains no substituents on the nitrogen atom of the 2-carboxamido group or a physiologically tolerable salt thereof with a base, with trichloro, tribromo, or trifluoro acetaldehyde. The compounds may be used in pharmaceutical compositions, e.g. in the form of an injectable solution, a depository preparation or a food preparation.  Specification 872,991 is referred to.
Patent GB-834201-A (GB)
Title: Improvements in or relating to tractors
IPC: B62D21/18
Filed: 1956-02-20
Abstract: 834,201. Vehicle body mountings. MONCALVI S.p.A. Feb. 20, 1956 [Feb. 22, 1955], No. 5161/56. Class 108(2) [Also in Group XXXI] A tractor adapted to have tools attached thereto comprises wheels rigidly connected in independent lateral pairs, i.e. with the wheels of each pair lying in a vertical plane, one pair at each side of the tractor and parallel to the direction of travel of the tractor, a body supported by the wheels and capable of oscillation about a horizontal axis perpendicular to the vertical plane, releasable means for rendering the body rigidly connectible with the pairs of wheels, in such manner as to compensate between the pairs of wheels for oscillations thereof due to unevenness of terrain over which the tractor may travel when the body is not connected to the pairs of wheels and acting on one or other of the pairs of wheels to restore equilibrium to the tractor. As shown, a tractor body 1 is mounted for oscillation about a transverse axis 11 between a pair of wheel supporting boxes 15, 15 the wheels being driven by an engine 2 through pairs of gearing 12, 13, 14 within the boxes. The tractor is controlled by a reversing lever 4 and actuating levers 5-8 from a driver's seat 3 which may be placed in either of the positions shown. Attachment plates 18, 22 for earth-working equipment are provided respectively on the body 1 and on the boxes 15 and a further attachment member 20 is rotatable about a vertical pin 19 attached to the rear end of the tractor body. A stabilizer, comprising a pair of hydraulic piston and cylinder units 23, 25, 26 is connected, one at each side of the tractor, between the body 1 and a corresponding box 15 and are interconnected through conduits 29 and 30. A pump and distributer may be connected into the conduits to permit the inclination of the body 1 relative to the boxes 15 to be raised. When used with certain types of equipment, the boxes 15 may be locked to the body by removable pins 17 and the hydraulic cylinders disconnected from the body. The hydraulic cylinders may then be connected to the lifting arms of a shovel which may be attached to the tractor. Specification 834,202 is referred to.
Patent GB-943258-A (GB)
Title: Improvements in or relating to conveyor chains
Inventor: COURCY ROWLAND JOHN JAMES DE
IPC: B65G17/00
Filed: 1960-02-12
Abstract: 943,258. Conveyer chains. ROWNSON CONVEYERS Ltd. Feb. 9, 1961 [Feb. 12, 1960], No. 5164/60. Heading B8A. A conveyer chain has double-jointed link connections each comprising two mutually perpendicular pivot pins carried by a non-metallic member which, when the chain is in tension, is in compression between the pins. Each of the said members 5, which are preferably of nylon, carries the two pins 10 and 11 in separate borings, the pins being free to rotate in the borings but restrained from rotation with respect to the links. The pins project from the links and bushes 14, 15 fitted with washers 18, 19 co-operate with resilient cross-pins 20, 21 in the pivot pins to hold the latter non-rotatable with respect to the plates 1, 2 of the links. These bushes also provide mountings for guide wheels 16, 17 and spacers 3, 4 between the link plates serve to carry an article-supporting hanger 44. Alternatively, an article support may be carried on a member 60, Fig. 6 (not shown), connected to extensions of the pivot pins and one of the two sets of guide wheels may be carried on separate axles 69, Figs. 7 and 8 (not shown), at the mid-points of alternate links, which links are shorter than the other links of the chain.
Patent GB-181063-A (GB)
Title: Thermo-electric heat accumulating cooking stoves
IPC: F24C15/34
Filed: 1921-02-15
Abstract: 181,063. Sacerdote, S., and Cristiani, S. Feb. 15, 1921. Electric hot - plates; resistance ovens.-Relates to electric cooking- stoves of the type in which the heat generated by the current is stored in a metallic mass surrounded by heatinsulating material in which cooking-spaces are arranged. According to the invention the cooking-spaces 65, Fig. 1, located in the upper part of the stove are provided with narrow openings 61 extending through the side-wall of the stove and adapted to receive the handle of a cooking-utensil, such as a sauce-pan or frying- pan, the spaces 61, 65 being normally occupied by heat-insulating pieces 62, 69. Fig. 3, respectively. The insulating-cover 69 may be formed in two parts 69, 70, the inner only of which need be removed when a small cooking-utensil is being heated. Two cooking-spaces 67, 68 may be arranged to communicate with one another as shown in Fig. 4 when it is necessary to accommodate a vessel of oblong or other unusual shape. Additional chambers 73, 75 may be disposed in the insulating material at suitable distances from the masses 66 according to the temperature required. In the arrangement shown, the space 75 is located directly beneath a mass 66 to serve as an oven while the luke-warm space 73 is located at some distance from the masses 66 and on one side adjoins the water-containing space 71 which, in known manner, is provided to equalize the temperature.
Patent GB-588646-A (GB)
Title: Improvements in or relating to sights for rifles or like small arms
IPC: F41G1/17
Filed: 1945-03-02
Abstract: 588,646. Rifle sights. BIRMINGHAM SMALL ARMS CO., Ltd., and PERRY, C. A. March 2, 1945, No. 5226. [Class 119] Relates to aperture sights for rifles of the kind described in Specification 21,332/09, [Class 119]; in which a supplementary disc 15, having a series of holes 17 of graduated sizes, is mounted on a main apertured disc 1 having a central hole 3, by means of the pivot pin 13. The holes 17 are so disposed chat they can be brought into alignment with the central hole 3 in the main disc. According to the invention, the supplementary disc is held in place by means of a latching finger 21 slidable in a groove in themain disc and engaging one of a number of recesses 11 in the rim of the supplementary disc. The finger is held in place by a spring blade 27 mounted in an arcuate groove 25 and both are held in their grooves by a cover-plate 29 having a central aperture 31.
Patent GB-938012-A (GB)
Title: Improvements in or relating to solar heaters
IPC: F24S10/50
Filed: 1960-02-15
Abstract: 938,012. Casting composite articles. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. Feb. 15, 1960 [Feb. 17, 1959], No. 5361/60. Class 83 (1). [Also in Group XIII] In apparatus for heating a fluid by solar heat (see Group XIII), a heat absorber 3, made by roll-bonding two aluminium or aluminium alloy sheets, to form fluid passages 5, is mounted in a casing containing insulation 9 and having a transparent upper wall formed by at least one panel 2 (of glass, polyethylene, polyethyl- or polymethyl - methacrylate or, polyamide) mounted in an aluminium or aluminium alloy frame 1 which is cast around the panel. The air-tight casing is completed by a base-plate 10.
Patent GB-490697-A (GB)
Title: Improvements in or relating to rotary wings or blades for rotating wing aircraft
IPC: B64C27/02
Filed: 1937-02-24
Abstract: 490,697. Aircraft with rotary wing systems. WEIR, Ltd., G. & J., and PULLIN, C. G. Feb. 24, 1937, No. 5516. [Class 4] In rotating wing aircraft in which the rotor blades have tubular spar-members and socket members connected to the hub, a rubber sleeve its interposed between and vulcanized to the peripheral surface of the spar and the base of its complemental socket member. In one form, a socket member 20 is formed in halves and provided with flanges 20b drilled to receive bolts 21. Two strips of rubber 22 are laid in the member 20 which is then bolted round the blade spar 23, two shims having been inserted between the two halves. A split-ring is clamped around the spar 23 and disposed between flanges 20a, 23a on the member 20 and spar respectively. A further split-ring is clamped around the spar adjacent the outer end of the member 21. The joint is then subjected to a vulcanizing process in a vulcanizer heated by steam, hot air or electricity and hot air or steam may be passed through the spar 23. After vulcanizing, the split rings and one shim are removed, the bolts being subsequently tightened. A rubber ring 25 is sprung over the flange 23a and an annular distance piece 26 is placed over the flanges 20a, 23a. The root of the blade is then bolted to a hub flange 27 ; the bolt holes in the flange 23a are elongated to provide for adjustment of the blade. In a modification, the rubber-sheath 22a is formed with a thick flange 22b, Fig. 7, adapted to fit a recess in the socket member 29 and a metal ring is welded to the flange 23a. The thickness of the rubber sheath may vary along the length of the spar, the maximum thickness being at the outer end of the socket member. The two halves of the member 29 may be provided with integral or welded flanges or with welded sockets or may be held together by clips. In a further modification, the socket member is passed over the unvulcanized rubber and is drawn down hydraulically or by rollers initially to compress the rubber. The facing surfaces may be sandblasted, roughened, or grooved. Abutments may be formed in the socket member or on the spar. According to the Provisional Specification synthetic rubber may be employed.
Patent GB-1360021-A (GB)
Title: Method of preparing liquid egg
IPC: A23L15/00
Filed: 1972-02-17
Abstract: 1360021 Egg product; additive CRODA WICK EGG PRODUCTS Ltd 17 Feb 1972 [26 Feb 1971] 5526/71 Heading A2B A liquid egg product, which may if desired be dried as by spray or freeze drying, is prepared by adding to the liquid egg either singly or together glyceryl monostearate and sodium stearate, and optionally a lower (C 2 -C 6 ) aliphatic glycol and/or lecithin, if desired in aqueous emulsion, such that the total amount of additive is within the range of 5-17 parts by weight to 560 parts by weight of liquid egg, provided that when glyceryl monostearate and sodium stearate only are added, no other emulsifier or additive is added. The product may be used in bakery products and the like.
Patent GB-470926-A (GB)
Title: Improvements in or relating to the production of cellulose ethers
IPC: C08B11/02
Filed: 1936-02-24
Abstract: Alkyl ethers of cellulose soluble in caustic alkali and containing not more than one molecular proportion of alkyl group per C6H10O5 unit, are prepared by treating cellulose with an aqueous caustic alkali solution not exceeding 50 per cent concentration, and either previously, simultaneously or subsequently treating the material with an aqueous solution of an alkali metal lower alkyl salt of sulphuric acid, in particular, sodium methyl or ethyl sulphate and sodium methoxy or ethoxy ethyl sulphate.  Generally the cellulose is in the form of wood pulp sheets; as alternatives, cotton linters in sheet form may be employed, or there may be used wood cellulose in bulk, or material treated may be cotton broadcloth in which case the cloth acquires a permanently sized effect and an increased affinity for cotton dyes.  Preferably the alkylating agent is added to the caustic alkali lye used for steeping; after impregnation and pressing, in some cases followed by disintegration, the materials may be allowed to age for some days preferably in an inert atmosphere, reaction occurring during the ageing.  Caustic alkali lye of 18 per cent strength is preferred; wetting agents such as mercerizing assistants may be added to the steeping solutions; and the temperature of reaction may be varied from 0 to 150 DEG  C.  The alkylated products are washed with water, and may be dissolved in dilute caustic soda solution at room temperature or below to give clear solutions suitable for the manufacture of films; typical products contain 2--3,45--5 per cent methoxy or ethoxy groups. Specification 469,901 is referred to.
Patent GB-637705-A (GB)
Title: Improvements in sockets for electrical plug-in devices
IPC: H01R13/11
Filed: 1948-02-25
Abstract: 637,705. Two-part couplings. GUARDIAN ELECTRIC MANUFACTURING CO. Feb. 25, 1948, No. 5596. Convention date, Aug. 18, 1941. [Class 38 (i)] A socket contact 20 comprises a U-shaped strip the edges of which are inturned and notched at 33 to provide spring fingers 34 with edges which bite into a co-operating pin contact. The upper ends of the legs 28, 29 are flanged at 39, 40 respectively the former constituting a soldering tag. Said flanges also serve as supports when a number of such sockets are mounted in rectangular holes in rows in an insulating plate 15, Fig. 1, being clamped thereto by a further plate 17 riveted to the plate 15. The plates are supported by flanged metal end plates 10, 11. A multiplecontact plug comprising pins riveted to an insulating plate 21 co-operate with the sockets.
Patent GB-360309-A (GB)
Title: Improvements in the manufacture by the powdering process of translucent enamels for cast-iron and sheet metal
IPC: C03C3/066
Filed: 1931-02-23
Abstract: 360,309. Enamels. MIGEOT FRERES, St-Michel-Sougland, Aisne, France. Feb. 23, 1931, No. 5641. Convention date, March 11, 1930. [Class 56.] The enamels described in Specification 273,260, [Class 56, Glass], which are free from lead and contain barium or strontium, are used for enamelling cast iron or sheet metal by the powdering process. According to the invention, alkali is introduced into the enamel in the form of a potassium salt, while sodium is absent except when borax is used instead of boric acid for the introduction of boron.
Patent GB-1212892-A (GB)
Title: Improvements in rotary disc-type mowing-machines
IPC: A01D34/66
Filed: 1968-02-05
Abstract: 1,212,892. Mowing machine. KUHN FRERES & CIE. 5 Feb., 1968 [13 Feb., 1967], No. 5655/68. Heading A1F. A rotary disc mowing machine comprises two or more rotatable cutter blade supports 2 each bearing blades 3, the rotary paths of the blades 3 of adjacent supports 2 overlapping, and the supports 2 being borne by a hollow bar 1, housing drive transmission members, Fig. 7, and pivoted to a main frame structure 5, 6 bearing main drive means 9-15. The machine may be mounted and driven from a tractor (not shown). As shown, the bar 1 is pivotable about a drive shaft 7 supported in a frame structure 4, though alternatively, Fig. 2 (not shown), a universal joint (25) may form a pivotable drive connection. Power is distributed to the supports 2 by a chain 51 engaging driving sprockets 36 rigid with the supports 2, guide rollers 53 being provided, and the interior of the bar 1 forming a lubricating oil sump; the bar 1 comprises flanged members 27, 28 bolted together through an intermediate gasket (30). Flat spiral elements 49 or helical elements 50 may be clamped to the supports 2 to improve aeration of cut vegetation, and a protective shield (65), Figs. 8-9 (not shown), may deflect stone splinters &c. thrown up by the machine. A swathforming deflector 19 may be provided.
Patent GB-191977-A (GB)
Title: Improvements in or relating to disintegrators
IPC: B02C13/22
Filed: 1922-02-27
Abstract: 191,977. Porteus, G. Feb. 27, 1922. Impact pulverizers.- Relates to disintegrators comprising a casing containing a rotary disc having studs or beaters on one side to coact with studs or projections on a ring fixed in the casing and wipers on the disc to throw the ground material against a stationary circumferential screen within the casing. The fixed ring 4 is spaced from the side cover 2<x> of the casing 2 so as to leave a space 7 down which the material unable to pass through the screen 6 falls, and a trough 4<Y> with its base in alignment with the base of the intake 1 is provided to return the material to between the ring 4 and the rotary disc 3 for further grinding. The screen 6 against which the ground material is thrown by the wipers 5 extends across the full width of the casing.
Patent GB-1009980-A (GB)
Title: Improvements relating to electrodes for electron discharge devices
Inventor: THOMSON ERNEST EXLEY
IPC: H01J43/10
Filed: 1961-02-16
Abstract: 1,009,980. Electron multipliers. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 8, 1962 [Feb. 16, 1961], No. 5719/61. Heading H1D. A discharge tube electrode comprises two superimposed plates each formed with alternate apertures and inclined slats, the slats of the two plates facing in the same direction and the slats 4 of one plate 1 projecting through the apertures of the other plate 2. The electrode may be an electron multiplier dynode. The plates 1, 2 may be spot-welded together. Dimensions are given in Figs. 1 and 2 (not shown). The slats may be at an angle of 42 degrees to the planes of the plates, the electrode being opaque when viewed orthogonally.
Patent GB-161788-A (GB)
Title: Machinery for punching structural material
IPC: B21D28/26
Filed: 1920-02-25
Abstract: 161,788. Thomas, G. P. Feb. 25, 1920. Punching; punches; metal-sheet feeds; spacing racks and like bars.-In a machine for punching boiler, ships', or other plates or beams &c., the feed of the blank and the lateral adjustment of the dies and punches are effected by manuallyoperated means placed close to the punching- head. In the machine shown in Fig. 5, a head 2 reciprocating in a frame 1 carries four punches 6, which are slidable horizontally on the head. The punches are arranged in pairs, and each pair is connected by a link 14 or 14<a> to a bracket 16 or 16a on a bar 17 or 23 which is attached to the corresponding pair of dies 12, the latter being slidable horizontally on the anvil. In order to move the pairs of punches and dies simultaneously in opposite directions, the bar 17 is geared to the bar 23 by means of a. bar 17a, attached to the bar 17, and formed with teeth gearing with a pinion 45 which also engages teeth on the under side of the 'bar 23. The punches and dies are adjusted by means of a hand-wheel 21 on a spindle 22 connected by bevel-gearing to a spindle 20 which carries a pinion gearing with teeth on the bar 17<a>. In order to ensure, accurate setting, a rack 46 attached to the bracket 16<a> is engaged by a pawl 49. When the head 2 rises, the pawl 49 is tripped by a rod 51 operated by a cam on the driving-shaft 3. The punches are locked by gags to which are attached rods slotted to engage rods 31, 31a carried by arms 32, 32<a> mounted on shafts 33, 33 by means of handles 34. As shown in Fig. 2, the blank 57 travels on idle rollers 55, and is secured at its forward end by means of a clamp 66 to a standard 65 mounted on beams 67, which run on rollers 68 cartied by the framing. Racks 69 on the under surfaces of the beams are engaged by pinions which are rotated through intermediate gearing by a handwheel 84 adjacent to the hand-wheel 21. A tail guide 63 running on a guide is attached to the rear end of the plate, and the blank is guided laterally by guides 60 adjustable by a hand-wheel 62 and by a single guide 120. The spacing may be effected by means of a template attached to the standard 65 and running under an indicator adjacent to the. hand-wheel 84, or the spacing may be effected by positive stops. One arrangement consists of adjustable stops or a rack 91 secured to one of the, beams 67 and engaged by a pawl which is tripped by a finger 94 when the punching-head descends. In another arrangement the stops are carried by a bar which is pivoted to the bed-plate and can be set at various angles in order to vary the spacing. The stops are engaged by a pawl 106 which is carried by the standard 65 and can be disengaged by means of a link to an arm 109 on a spindle 110 turned by a handle 111.
Patent GB-608480-A (GB)
Title: Improvements in or relating to supporting brackets
IPC: A47B57/30
Filed: 1946-02-25
Abstract: 608,480. Brackets. MASON & SON, Ltd., W., and ROBINSON, W. S. Feb. 25, 1946, No. 5825. [Class 52(v)] The projecting end of the web 2 of a shelf &c. bracket 1 has an upwardly inclined open ended slot 4 to engage a cross pin 6 of the supporting upright 8, a lip 9 on the web engaging under a second cross pin 6 to prevent the bracket lifting. The lip 9 may be formed by a second slot 5 and the lower pin 6 may be adjustable laterally to vary the inclination of the shelf.
Patent GB-210644-A (GB)
Title: An improved joint for elbows and knees of artificial limbs
IPC: A61F2/64
Filed: 1923-02-28
Abstract: 210,644. Hoare, C. G., and Waters, T. C. Feb. 28, 1923. Limbs, artificial.-A knee or elbow joint of an artificial leg or arm is locked in various positions by a bolt 9 which passes through holes in a projection 8 fixed to one portion of the limb and a disc or sector 6 fixed to the other portion as shown in plan in Fig. 1. The projection 8 is formed on a ring 1 in the bucket 2 which also carries a rotatable shaft 4 to which the lower portion of the limb is attached, the sector 6 being keved to the shaft. The projection 8 may be slotted to receive the sector as shown in Fig. 1. The bolt 9 is operated by a toothed rack 15 pivoted on a shaft 16 or on the shaft 4 and engaging a tooth wheel 17 which rides freely over a sleeve 10 through which the bolt 9 passes. To the wheel 17 is fixed a hollow disc 18 which contains a pawl engaging a ratchet wheel which has a boss 19 provided with opposite cam surfaces engaging a pin 11 projecting from the bolt. The rack 15 is operated by a chain 22 fixed to the shoulder or hip of the wearer. A pull on the chain rotates the wheel 17 and the boss 19 causing the cam to retract the bolt. The rack 15 is brought back to its original position by a spring 23, and the bolt 9 by a spring 13, the wheel 17 and disc 18 riding freely without turning the ratchet wheel and boss 19.
Patent GB-254766-A (GB)
Title: Improvements in or relating to curtain rail supports
IPC: A47H1/144
Filed: 1925-03-04
Abstract: 254,766. French, G. F., French, R., and Pinch, W. H. March 4, 1925. Brackets, clip; curtains, suspending.-Brackets for supporting bendable curtain rails of inverted T or similar section are adapted to slidably grip the rail, independent means being provided to secure the bracket to the wall &c. In the construction shown in Fig. 1 a bracket is formed by bending a strip of metal to form attaching lugs e and jaws d between which the rail is held by a set-screw h, the rail being preferably roughened or provided with a groove g<1>. In a modification the screw h does not engage the rail but merely serves to tighten the jaws thereon. In a further form shown in Fig. 7 the bracket comprises a part u with a tapered screw at one end to engage the wall &c. and a screwed part at the other end carrying a clip u<1> and a nut u<2>. In the construction shown in Fig. 8 the bracket is in the form of a casting or stamping with a small right-angled projection w<1>, a clip w<2> being attached to either the projection w<1> or the horizontal part w of the bracket, according to whether the bracket is secured to a wall or a ceiling. Specification 15462/95 is referred to.