baber/WOPTO huggingface dataset:
Patent GB-817692-A (GB)
Title: Production of cobalamine analogues
IPC: C12P19/42
Filed: 1956-07-03
Abstract: The invention comprises a composition having LLD activity which comprises an intimate mixture of cobalamines and hydroxybenzimidazole analogues of cobalamines and a process for producing hydroxybenzimidazole analogues of cobalamines having LLD activity which comprises fermenting a nutrient medium containing a 3,4-diaminophenol compound by means of a strain of a microorganism selected from the genus Pseudomonas and capable of producing cobalamines having LLD activity.  Suitable strains of fungi are P. aeruginosa, P. fiuorescens, P. mildenbergii, P. mucidolens, P. lumichroma, P. denitrificans, P. chloraraphis, P. rugosa, P. nigrificans and P. salinaria.  Typical 3,4-diaminophenol compounds are compounds having the formula <FORM:0817692/IV (b)/1> where R is hydrogen or a polyhydroxyalkyl or acyl group and where each of A and B represents a pair of hydrogen atoms or a group convertible by hydrolysis or reduction to a pair of hydrogen atoms, or where A and B are linked together to form a ring structure.  If R is acyl, preferably it is of the form R1.CO- wherein R1 is an alkyl, aryl or aralkyl group having 1-8 carbon atoms.  Examples of polyhydroxyalkyl groups are methyl D-glucoside, D-fructoside, 1-a -D-riboturenoside - 5 - hydroxybenzimidazole, 1 - a  - D - ribopyranosido - 5 - hydroxy - benzimidazole, 1 - L - arabinopyranosido - 5 - hydroxybenzimidazole, 1 - L - xylopyranisido-5 - hydroxybenzimidazole, and 1 - b  - D - ribopyraniside - 5 - hydroxybenzimidazole.  Among the precursors mentioned are 5-hydroxybenzimidazole, N - acetyl - 5 - hydroxybenzimidazole, 3,4 - diaminophenol 3 - amino - 4 - nitrophenol, N,N1 - diacetyl - 3,4 - diaminophenol, 3 - amino - 4 - nitrosophenol, N - (D - glucosido) - 5 - hydroxybenzimidazole, and their acid salts such as hydrochloride hydrobromide and sulphate.  In examples, Pseudomonas denitrificans is employed in fermenting different media.  Specifications 681,503, 694,943 and 695,273 are referred to.
Patent GB-1221350-A (GB)
Title: Automatic toner concentrate detector for electrophotographic apparatus
IPC: G03G15/08
Filed: 1968-05-01
Abstract: 1,221,350. Photo-electric toner concentration control. ADDRESSOGRAPH-MULTIGRAPH CORP. May 1, 1968 [June 14, 1967], No.20670/68. Heading G1A. [Also in Divisions G2 and G3] Apparatus which monitors and controls the concentration of toner in a developer mix in an electro-photographic apparatus comprises a probe 34 having a surface 36 which carries a uniformly distributed toner attracting charge and which contacts the mix, e.g. by rotation of the probe by shaft 40, and a photo-electric detector 44 for measuring the amount of toner retained on the surface, toner 30 being added to the mix when the amount of toner detected is less than an optimum concentration so as to obtain an optimum concentration. The photo-electric detector includes a light source and a light responsive photo-diode mounted within a housing 46 of material triboelectrically similar to the toner to avoid deposition of toner particles within the housing. A thermistor is also mounted within the housing so that a temperature independent signal corresponding to the amount of toner deposited on the surface may be obtained. The monitoring apparatus is disposed within a trough 24 through which the mix is circulated by augers 18, 20 to a magnetic brush assembly 26 formed on the surface of a cylinder (14) Fig.2 (not shown) within which a magnet (16) is mounted. The signal from the photo-diode is fed to a transistor amplifying and relay circuit, Fig. 4 (not shown) to control the vibration of toner hopper 32.
Patent GB-1242654-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: DORMAN PAUL WILLIAM
IPC: H03K3/02
Filed: 1969-04-23
Abstract: 1,242,654. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. 23 April, 1969 [25 April, 1968], No. 20676/69. Heading H1K. Output pulses of a shape predetermined by the physical parameters of the device are extracted from an output electrode 18 capacitively coupled to the active region 11 of a Gunn effect device e.g. of n-type GaAs, through a dielectric layer 17. In the form shown the shape of output pulses produced when high field domains 16 sweep past the electrode 18 is determined by variations in width of the electrode 18 along the direction x of domain propagation. Other parameters which may be varied along the direction x to shape the output waveform are the dielectric constant or thickness of the dielectric layer 17, the cross-sectional area of the active region of the body 11 or the doping concentration in that region. Non-uniform doping concentration may be compensated for so as to produce square output pulses by varying the width of the electrode 18 along the direction x in such a way as to produce the desired effect. The dielectric layer 17 may comprise an adhesive polyethylene tape or an oxide layer. Two electrodes (28, 29), Fig. 6 (not shown), of varying width may be spaced apart along the direction x and connected to a common load to produce an output pulse train comprising alternating pulse shapes. Two pulse trains in synchronism or with a definite phase relation to one another may be provided by means of two spaced electrodes (35, 36), Fig. 8 (not shown), which overlap completely or partially along the direction x. The dielectric layer 17 may be a poor insulator, in which case conduction currents will flow through it to modify the displacement current caused by the capacitive coupling. The invention is also applicable to devices comprising negative resistance piezo-electric materials using phonon-carrier interaction, of the type described in copending Specification 1,218,451.
Patent GB-531286-A (GB)
Title: Improvements in and relating to dabbing brushes for woolcombing machines
IPC: D01G19/12
Filed: 1939-07-17
Abstract: 531,286. Dabbing-brushes for combing-machines. LORIMER, T. July 17, 1939, No. 20698. [Class 120 (i)] In a sectional dabbing brush for a wool-combing machine, the reversible brush sections are arranged so that the section subject to most wear may be simply slid into and out of position between a depending lug on the back portion of the brush and an abutting section and be secured by an interposed leafspring carried by another depending lug and pressed towards the adjacent section by an adjusting or clamping screw. As shown, the section A subject to most wear is slid between the long section B and a depending lug L<SP>1</SP> on the back portion D, which has an area slightly greater than the combined area of the sections, and the section A is secured in position by the pressure of a leaf spring S disposed between the section B and the lug L to which it is secured at one end and engaged at the other by a screw S3 passing through the lug. The sections B, C are retained between the lugs L, L<SP>2</SP> depending from the back D by a bolt E passing through the lugs and holes in the section ; the section B has a pair of holes Bl so that it can be reversed in the back portion and the section C has a pair of holes C<SP>1</SP> or a single hole arranged midway between a pair of its ends. The lug L<SP>1</SP> may have a lip L<SP>3</SP> to guide the section A into position and a part D<SP>2</SP> of the back may be formed as an additional guide. Specification 485,218 is referred to.
Patent GB-1218462-A (GB)
Title: Improvements in electrical connector assemblies
IPC: H01R31/06
Filed: 1968-05-02
Abstract: 1,218,462. Two-part couplings. AMP Inc. 2 May, 1968 [23 May, 1967; 4 Aug., 1967], No.20779/68. Heading H2E. A mounting arrangement for an electrical connector assembly 2, Fig. 1, comprises a pair of spaced rails 10, 12 each having a plurality of inwardly extending ribs 74 which fit over ledges 19 on the connector assembly housing, the ribs on each rail being located opposite one another. The spacing between adjacent ribs is greater than the length of the ledges 19, so that the connector assembly can be inserted, and withdrawn from, between the rails when it is positioned between adjacent ribs. Individual connector assemblies are clamped in position by means of a plate 76, slidable in grooves 80 in the rails 10, 12. Complementary longitudinal projections 86 and grooves 84 in the rails allow two or more mounting channels to be joined. In a modification (Fig. 17, not shown) pairs of connector assemblies may be mounted back to back between rails having upper and lower sets of ribs for abutting upper and lower ledges on the combined connector housings. In each individual connector assembly 2, Figs. 2 and 11, sockets contacts 52 are positioned in a plurality of passageways 30 in an insulating housing 14, so forming a module. A resilient sealing block 18 is bonded to its upper side and has aligned passageways 24 covered by a puncturable membrane 25, through which the plug part (Fig. 3, not shown) is inserted. A compressible barrier insert 38 fits into a recess 34 in the housing 14 and has a plurality of openings separated by walls 40, through which the sockets are inserted into the housing. They are held in position by a closure plate 16, bonded to the housing, which also compresses the insert 38, so forming a peripheral seal. The housing may be of diallyl phthalate, and the sealing members 18, 38 of silicone rubber. Constrictions in the block 18 facilitate gripping of the plug lead. The sockets themselves are made by stamping and bending operations on a laminated sheet metal strip which comprises a base portion of a springy metal such as beryllium copper and a contact portion of a highly conductive metal, for example pure copper which extends over only part of the springy layer. The sockets include both blanked out contact springs and blanked out retaining springs which abut a shoulder on the plug. The plug may be removed by the insertion of a retraction tool which forces the springs outwards off the shoulder. The sockets are moved closer by folding the carrier strip to form bridging portions 70, Fig. 11. By suitable severing of these portions, selected combinations of-sockets only may be commoned. Sockets may be connected by parallel strips 248, 249, Fig. 8, which are themselves joined by rings 253. A socket 252 is located at each end of each ring. (For Figure see next page)
Patent GB-169321-A (GB)
Title: Improvements in watches and watch cases
IPC: G04B37/08
Filed: 1920-07-10
Abstract: 169,321. Pendlebury, J. T. July 10, 1920. Cases, watch.-A cylindrical metal ring a is fitted friction-tight in the watch case and is provided with a flange b upon which the watch movement c is seated and secured bv means of screws d. The ring a may be adapted to carry the glass cover, back cover, and, in the case of hunters and halfhunters, the front cover; or these may be carried by the central band e of the watch case.
Patent GB-698888-A (GB)
Title: Improvements in or relating to a device for use in the construction of model railwaytracks
IPC: A63H19/30
Filed: 1950-08-22
Abstract: 698,888. Sobering and brazing. TAYLOR, W. B. Aug. 13, 1951 [Aug. 22, 1950], No. 20801/50. Class 83 (iv). [Also in Groups XV and XXIII] A gauge device holds rails of a model railway track perpendicularly and in correct spaced relationship during fixing thereof to sleepers. In Figs. 2, 3 a base plate 11 has fixed jaws 12 which co-act with the lower portions of pivoted jaws 16 to hold rail lengths 24 in position when securing, e.g. soldering, the rails to the sleepers. A tension spring 20 connects the jaws 16 which have finger-grip portions 17 and are pivotally mounted in cross members 10. When laying a side conductor rail, an attachment, Fig. 4, having plate-like members 35, 36 of a thickness corresponding to the height of a conductor rail above a running rail, has members 38a gripped in one pair of jaws 12, 16 and members 38b are held in a slot 13 of the main gauge when cross bars 37a, 37b are fitted between the running rails. The other pair of jaws 12, 16 is thus able to grip a side conductor rail 24a and position it at the correct height and offset distance. For laying a centre conductor rail, a spacing member between the clamping jaws may be provided. A profile 39 in the plate 36 provides a gauge for rolling stock wheels. A buffer plate attachment, Fig. 3, is located by dowel pins 33, 34 and pins 29 enable the height and spacing of buffers to be checked. Apertures 30 used with a prod 31 permit the position for supports or chairs of side rails to be marked on a base board. For checking distances between inner surfaces of rolling stock wheels and vertical positioning of a side conductor rail, steps are formed in cross members 10 and in plate member 35. A gauge for holding and positioning a check rail, Fig. 6, includes pivoted jaws 42 and a central plate 41 which is of a thickness equal to the flangeway. A spring 43 is compressed between the upper portions of the jaws 42 and a supporting arm 44 is adjustable. The arm 44 may be used with the main gauge (see Fig. 1) to define the location, e.g. of bridges or with an extension, the curved portions of the track. An adaptor plate 47, 48, 49, Fig. 8, enables the main gauge to be guided along a series of sleepers 25 to which rails 24 are being secured. Specification 698,893, [Group XV], is referred to. According to the Provisional Specification a unit for locating a check rail and centre conductor is adapted for use with the main gauge. Additional pressure applied to the jaws is stated to cause the jaws to remain open to enable the device to be slid along the track. A pair of arms pivoted to the device may be used to maintain the correct course of the track being laid.
Patent GB-1160749-A (GB)
Title: Car Radiator Grilles
Inventor: BUTTREY DOUGLAS NORTON
IPC: B60K11/08
Filed: 1966-05-11
Abstract: 1,160,749. Radiator grilles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 12 April, 1967 [11 May, 1966], No. 20816/66. Heading F4S. A car radiator grille is made of polypropylene and comprises grille bars 1 with integral hinges 2 and flaps 3, so arranged that the plurality of vents extending between the grille bars can be partially or fully closed by means of said hinged flaps 3. Said bars are held apart by means of polypropylene cross-pieces 4. The flaps 3 are linked by a cable 5 which is attached to a spring 6 in turn connected to the grille-housing 7. Said cable 5 links the flaps by passing through holes therein, then passing round a pulley 8 fixed to the grille-housing 9, such that, on pulling the cable, the flaps close and the spring is extended. On release, the spring 6 contracts reopening the flaps. To prevent the cable from being drawn back too far, a stop is provided which comprises an angled plate 10 attached to the grille-housing 9 containing a hole 11 through which the cable passes. Stopping is effected when the disc 12 which is attached to the cable meets the hole 11. Similar discs 13 are attached to the cable to prevent it sliding through the holes in the flaps without moving the flaps. Alternatively, the flaps may be opened and closed by an electrical relay which may be activated by some automatic device e.g. a thermostat.
Patent GB-242734-A (GB)
Title: Improvements in the finishing of tubular fabrics and in apparatus therefor
IPC: D06C29/00
Filed: 1924-09-04
Abstract: 242,734. Geeson, T. Sapt. 4, 1924. Stretching tubular goods upon internal frames; steaming; calendering.-A tubular fabric is fed by rollers C, C' and side pulleys E, E<1> over a tubular frame A at the same rate or faster than it is taken up by the rollers D, D<1>, " bowing " of the fabric being prevented by eliminating resistance at the sides of the frame by the use of antifriction wheels a<3> and by retarding the fabric at the centre by means of curved inclined bars D, B<1> and straight bars M. The fabric passes over steaming troughs H and a drier K, preferably heated by steam pipes k, before it reaches the rollers D, D<1>, and may then pass between hot or cold calendering rolls G, G<1>. The delivery end of the frame A is square, and is fitted with a thin plate a' projecting between the rollers D, D'. The bars M are carried in holes m<1> in swivelling brackets m. The two steaming troughs H are fitted with sliding shutters h, and the side pulleys E, E<1> are adjustable to suit frames A of different sizes.
Patent GB-1262340-A (GB)
Title: Process for preparing highly reactive powders
Inventor: SANCHEZ MOISES GALI
IPC: C01F7/023
Filed: 1969-04-23
Abstract: 1,262,340. Oxide powders. W. R. GRACE & CO. 23 April, 1969 [23 April, 1968], No. 20854/69. Headings C1A and C1N High surface area oxide powders composed substantially of particles having a diameter between 0À005 and 0À01 micron agglomerated together are prepared by grinding a precursor of the oxide comprising (a) a mixture of decomposable salts of different metals, .or (b) a decomposable salt of a single metal other than aluminium, or (c) a mixture of silica with a decomposable salt, in the form of a solid, slurry or solution in a fluid energy mill at a temperature of between -500 and 1400 F. By "decomposable" is meant that the salt decomposes to a solid oxide under the temperature and atmosphere in the mill. The oxide precursors of the examples include decomposable salts of Zr, Fe and Ti, such as the.nitrate, sulphate, carbonate, oxalate and formate, a mixture of silica and ammonium nitrate, and a mixture of decomposable salts of (i) aluminium and chromium, (ii) magnesium and aluminium in an atomic ratio of 1 : 2 to give a spinel of the formula Mg 2 AlO 4 , and (iii) copper and chromium, to give CuCr 2 O 4 .
Patent GB-893402-A (GB)
Title: Improvements in or relating to means for handling slivers and/or rovings of fibrous material
IPC: B65H67/04
Filed: 1960-06-14
Abstract: 893,402. Spinning yarns. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. June 14, 1960 [June 26, 1959], No. 20859/60. Classes 120(1), 120(2) and 120(3) Sliver 10, continuously fed as from a carding- engine to replaceable containers from one to another of which the sliver end is required to be directed, passes through a condenser funnel 8, between rollers 1, 2, thence in self-aligning manner through the nip of rollers 3, 4 (or 5, 6). The sliver is broken and the end simultaneously transferred to the nip of the other rollers 5, 6 (or 3, 4) by a portion 12a of a rod 12 (being automatically or manually rotated about a pivot 13) coacting with a sharp edge formed by sliver deflectors 15, 16.
Patent GB-478184-A (GB)
Title: Wooden heels, particularly high heels for ladies' shoes
IPC: A43B21/00
Filed: 1937-07-28
Abstract: 478,184. Heels for boots and shoes. BEZEMER, B. H., BEZEMER, J. A., and BEZEMER, A. A. A. July 28, 1937, No. 20874. Convention date, March 1. [Class 17 (ii)] The upper part 1 of a wooden heel especially for ladies' shoes is cut with the grain and is connected by a mortise and tenon joint 4 with the lower part which is cut with the grain. The abutting face 5 of the two parts 1, 2 may be horizontal or inclined.
Patent GB-1142563-A (GB)
Title: Improvements in or relating to selvedge forming devices for shuttleless looms
IPC: D03D47/46
Filed: 1966-05-11
Abstract: 1,142,563. Looms. NUOVO PIGNONE S.p.A. 11 May, 1966 [15 May, 1966], No. 20984/66. Heading DIE. A selvedge forming device for a shuttleless loom comprises an eyed needle 15 for laying an independent thread into the edge of the shed and a retaining needle 23 for holding a loop of the thread whilst the needle 15 is withdrawn. The loop of thread is then beatenup with the weft. The tip of the needle 15 is caused to move in a helical path by a cam and follower 2, 3 and a sleeve 12 with a pin 13 engaging a slot 14. The needle 23 is moved backwards and forwards by a cam and follower 16, 17 and up and down by a cam and follower 26, 27.
Patent GB-335998-A (GB)
Title: Improvements in or relating to devices for dispensing cement and the like
IPC: B27G11/02
Filed: 1929-07-09
Abstract: 335,998. British United Shoe Machinery Co., Ltd., and Barnett, W. July 9, 1929. Direct air-pressure apparatus, non-automatic. -A device for dispensing liquid cement &c. in small quantities at a time from a container comprises a hollow cap member 10 screw-threaded at 16 to grip tightly the opening of a can 12, a pipe 24 extending above the liquid in the can and connected through a passage 30 and a non- return valve 33 to a hand pump 32, and an outlet 34 controlled by means of a spring-pressed plug tap 36, a safety valve 35 being provided. The cap member 10 is mounted on a base 14 provided with a tray 38, on the underside of which electrical heating means may be provided for use with viscous liquids. In an alternative arrangement a valve conduit through which air under pressure may be supplied is situated near the normal bottom of the can. Specifications 7331/06, [Class 125, Stoppering &c.], and 1135/15, [Class 135, Valves &c.], are referred to.
Patent GB-1348667-A (GB)
Title: Liquid developing process for electrostatic latent images
IPC: G03G13/10
Filed: 1971-04-19
Abstract: 1348667 Electro-photographic developing RANK XEROX Ltd 19 April 1971 [4 Feb 1970] 21056/71 Heading G2H An electrostatic latent image is developed under the influence of an electrode by toner particles in an insulating liquid; the effect of the electrode being increased during development. It is stated that this reduces background deposition, halo, edge effect and streaking. The effect of the electrode may be adjusted by varying its distance from the image, by varying a resistance through which it is earthed or by varying the thickness of a dielectric layer on the electrode. As shown, an image bearing sheet 10 is fed by a belt 83 past an electrode 80 inclined towards the belt. Other embodiments, Figs. 14-23, (not shown), include the use of plate electrodes, apertured electrodes and roller electrodes to vary the electrode to image distance.
Patent GB-482418-A (GB)
Title: Improvements in fastening devices for the bands of trusses and surgical devices
IPC: A61F5/24
Filed: 1937-07-30
Abstract: 482,418. Surgical trusses. WALKER, Ltd., T., WALKER, G. T., and BROOKS APPLIANCE CO., Ltd. July 30, 1937, No. 21096. [Class 81 (ii)] [Also in Groups VII and XXV] A surgical truss comprises a main band 1 and an auxiliary band 2, a loop or slide 3 embracing the main band and carrying a fastening device 5 having two pairs of gripping jaws one pair to grip the main band and the other pair to grip the auxiliary band. The two pairs of gripping jaws are operated simultaneously by a lever 14.
Patent GB-205258-A (GB)
Title: Improvements in or relating to bobbins
IPC: B65H75/14
Filed: 1922-08-03
Abstract: 205,258. Wilson Bros. Bobbin Co., Ltd., and Wilson, T. S. Aug. 3, 1922. Bobbins &c.-In a flanged bobbin, a liner 5 .of metal or other material is inserted between each flange 2 and barrel 1, on the one hand; and the usual dovetail bushes 3, on the other hand, so as securely to fix the flanges in position. The bushes 3 are provided with metal caps 4.
Patent GB-704026-A (GB)
Title: A method for the production of iron powder of suitable grain size for powder metallurgical purposes
Inventor: BRUNDIN NILS HERMAN
IPC: B22F9/20
Filed: 1951-09-07
Abstract: Iron powder of a grain size below 100 mesh is produced by treating finely divided iron ore of a grain size below 100 mesh, and not exceeding that of the desired final powder, with a solid or gaseous reducing agent at a temperature to form sintered sponge iron cakes which, after cooling, are comminuted to the desired grain size.  The ore, e.g. magnetite, crushed to pass a 100 mesh sieve, may be a concentrate and may be reduced by carbon at 1000 DEG C.  The loss, i.e. powdered iron failing to pass 100 mesh is stated to be about 2.5 per cent.