baber/WOPTO huggingface dataset:
Patent GB-1531362-A (GB)
Title: Spreader assembly for an advancing circular knit fabric tube
IPC: D06C5/00
Filed: 1976-01-20
Abstract: 1531362 A spreader for a fabric tube F CATALLO 20 Jan 1976 [3 Feb 1975] 34596/77 Divided out of 1531361 Heading D1S An apparatus for carrying out straightening or overfeed calendering operations on a circular knit fabric tube 68 as in the Specification 1531361, but the claims are directed to the spreader 10 having a pair of spaced generally parallel frame members 24, 24 with spaced parallel outer edge portions 25, 25, a pair of vertically spaced idler wheels 34, 34 located intermediate of the ends of the frame members 24, 24, the wheels 34, 34 being of symmetrically opposed frusto conical configuration and having portions of their peripheries extending laterally beyond the outer edge of their associated frame member, a pair of transverse, freely rotatable circumferential drive rolls 26, 26 mounted across the frame members 24, 24 adjacent the front ends thereof, wherein the idler wheels 34, 34 cooperate with tapered drive rolls 43, 43 driven by variable speed means to impart tube face drive to the fabric tube 68 and wherein the circumferential drive rolls 26, 26 cooperate in nip forming manner with control rolls 49, 50 which are driven by a variable speed means and the speed of each of which rolls 49, 50 is selectable by a further means whereby to impart a circumferential feed drive to the fabric tube 68.
Patent GB-605408-A (GB)
Title: Improvements in or relating to voice frequency signalling systems
IPC: H04Q1/45
Filed: 1945-12-21
Abstract: 605,408. Signalling over telephone circuits. STANDARD TELEPHONES & CABLES, Ltd. Dec. 21, 1945, No. 34759. Convention date, Dec. 26, 1944. [Class 40 (iv)] [Also in Group XL (c)] A two voice-frequency signalling system has an amplifier which is almost completely blocked under normal conditions but is unblocked to operate a relay by signal currents passed through a modulator and rectifier. The amplifier L is normally biassed almost to cut-off by battery connected across a resistor r3. Signalling currents received over transformer T1 are isolated by tuned circuits f, f<SP>1</SP> and passed to a ring modulator M from the output of which that component which is the difference between the two frequencies is selected by filter F and passed through rectifier R1. The rectified output appears across resistor r2 to oppose the standing bias on valve L. The latter is consequently unblocked and operates relay R. In order to prevent distortion when strong signals are received a triode-pentode valve may be used, Fig. 6 (not shown). In this modification the triode produces a voltage proportional to the strength of the signals and this is added to the standing voltage on the pentode control grid. This also reduces the possibility of operation of the signal relay by strong speech currents of signalling frequency, since the valve is automatically made less sensitive. Should the relay actually operate initially to such currents owing to the time constant of the circuit the time of such operation can be reduced sufficiently to render it negligible. A further modification, Fig. 7, (not shown) provides negative feedback and uses resistance-condenser bridges, in place of the inductive tuned circuit, which are so connected as to reduce the feedback to zero at the signalling frequencies.
Patent GB-778863-A (GB)
Title: Improvements in or relating to the production of hollow sand cores and hollow sand mould units for metal casting
Inventor: BERTHOLD GEORGE
IPC: B22C23/00
Filed: 1954-12-02
Abstract: 778,863. Moulding-machines. SCHUELLER AUTOMATIC FOUNDRY PROCESES, Ltd. Dec. 2, 1954, No. 34961/54. Addition to 735,355. Class 83 (1). The process of the parent Specification for making shell-cores is applied to the manufacture of mould-units by shooting the sandresin mix into a closed and heated mould comprising at least one pattern-plate. Hollow units 28, with mould-cavities 30, 33 on each side may be made by blowing the mix between two heated pattern-plates 20, 23 and removing excess mix by suction through holes 36. Mouldcavities may be formed on other faces of the mould-unit, e.g. the face 38, and a corresponding unit 42 formed to complete the cavities 43. Pins may be positioned between the pattern-plates so that the blown mix forms rigid stays to strengthen the hollow units. Two or more cores or mould-units may be produced simultaneously or in succession by supplying mix from the pressurized chamber 1 through a coupling which branches into flexible conduits 9, one for each metal-mould 2. A coupling 10 directs the mixture through pipes 11 connected to plates 12 which are pressed down on to the mould. More than one pressurized chamber may be used, filled with different kinds of mixes, e.g. a fine mix for a first layer on the mould or pattern and a coarser mix for a backing layer.
Patent GB-1384039-A (GB)
Title: Piperidine derivatives useful as polymer stabilizers
IPC: C07D491/113
Filed: 1973-07-23
Abstract: 1384039 Bis - (2,2,5,5 - tetramethylpiperidyl)- substituted compounds SANKYO CO Ltd 23 July 1973 [27 July 1972] 34979/73 Heading C2C [Also in Division C3] The invention comprises compounds (I), (II), (III) and (IV) where A is: alkylene, optionally interrupted by -O-or-S-, alkenylene, alkynylene, aralkylene, aliphatic-diacyl, a group (where n is 1 or 2 and X is alkylene, o-, m- or p-phenylene or a direct bond) or a group (where Y is alkylene or o-, m- or p-phenylene); R is hydrogen, alkyl, cycloalkyl, aralkyl, aryl, alkoxycarbonyl, alkenyl, monoacyl, N-substituted-carbamoyl or -thiocarbamoyl or a monovalent radical derived from an oxo acid; R<SP>1</SP> and R<SP>2</SP> are alkyl or may be joined to form a group (A), (where R<SP>3</SP> is hydrogen, alkyl, or hydroxymethyl) or a group (B) (where R<SP>4</SP> and R<SP>5</SP> are hydrogen, alkyl or hydroxymethyl; and R<SP>6</SP> is hydrogen or alkyl) ; and R 7  is alkyl or aralkyl, and their preparation by reacting the corresponding N-unsubstituted piperidine with a dihalide Q-A-Q where Q is a halogen atom. The compounds of the invention are stabilizers for synthetic polymers against photo- and thermal-degradation.
Patent GB-1014843-A (GB)
Title: Improvements in or relating to transmission line matching devices
Inventor: WINWOOD JOHN MORLAND
IPC: H01P5/04
Filed: 1962-09-13
Abstract: 1,014,843. Matching impedances. MULLARD Ltd. Sept. 13, 1962, No. 34982/62. Heading H1W. A transmission line matching arrangement comprises two  spaced reactive dielectric members. In the example shown, a narrow waveguide 1 is matched to a travelling-wave tube 4 by means of dielectric blocks 5, 6 which have a thickness equal to the narrow dimension of the waveguide. They are adjustable by means of cords 7, 8 which are threaded through narrow openings 9 in the sides of the guide. The narrow guide 1 is connected to a standard guide 2 by means of a stepped transition 3. In the modification of Fig. 5 (a side view) members 10, 11 each have a thickness equal to half the narrow dimension of the guide and extend across the whole width of the guide. They are moved by members 12, 13 lying against the narrow walls of the guide. The mode of adjustment of the device is explained using a Smith chart.
Patent GB-759781-A (GB)
Title: Improvements in high draft spinning frames for spinning course fibres
IPC: D01H5/26
Filed: 1953-12-16
Abstract: 759,781. Centrifugal spinning- machines; fibre drafting arrangements. GARDELLA, A., and GARDELLA, C. Dec. 16, 1953 [Dec. 19, 1952], No. 34986/53. Class 120 (2). Long and coarse vegetable fibres are spun by drawing a sliver with a draft of at least thirty, controlling the fibres during drawing, and passing the drawn thread through a fibre-controlling friction guide located between the drawing unit and a centrifugal spinning can. In a preferred form of machine, spinning cans 20 are staggered and are driven from pulleys 22 by belts 23. Each can 20 supports a container 24 provided with a disc 25 for facilitating removal of thread packages formed within the container 24, which is held within the can 20 by latching means that can be released automatically for doffing. In each drafting unit there is a sliver controlling device comprising a pair of belts 6, 7, the inner runs of which are pressed together by blade springs 8, Fig. 2, fastened by their upper ends to frame parts 9. A sliver guide 10 is inserted intermediate the belts 6, 7 and the delivery rollers 4, 5. The tubular thread guide 11 is provided with thread contacting friction elements as described in Specification 759,782.
Patent GB-466822-A (GB)
Title: Improvements in and relating to electric arc welding apparatus
IPC: B23K9/073
Filed: 1935-12-18
Abstract: 466,822. Supply systems for welding- arcs. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 18, 1935, No. 35136. Convention date, Dec. 28, 1934. [Class 38 (iv)] [Also in Group XI] Circuit is supplied in varying proportions through two parallel paths to the movable electrode 10 of welding apparatus in which the electrode is moved lengthwise of the work 11. One of the supply leads is connected to the movable electrode and the other to a contact 15 which moves with the electrode 10 over a resistance 17, the ends of which are connected to the ends of the work, thus avoiding disturbing magnetic effects on the arc.
Patent GB-847965-A (GB)
Title: Improvements in welding fluxes
Inventor: ROBERTS DANIEL FRANK THOMAS
IPC: B23K35/02
Filed: 1957-11-13
Abstract: A submerged arc welding flux is made by mixing with water or other liquid the dry constituent powders of the flux, forcing the crumbly mass so produced through a sieve to form the mass into granules, and then firing the granules at a temperature below fusion temperature. One of the constituent powders of the flux should have the property of promoting granulation of the powders when they are mixed with liquid and of promoting bonding of the particles within the granules when they are fired.  This constituent may be clay or slaked lime and is preferably present in an amount of at least 5% by weight.  The flux may consist solely of clay and fluorspar, but preferably contains a basic ingredient such as magnesite, limestone or manganese oxide.  A mineralizer such as a carbonate, silicate, fluoride, chloride, silicofluoride or borate of an alkali or alkaline earth metal, or a boron or lead compound may also be included in an amount of 0.1 5% by weight.  Firing is usually carried out at a temperature not exceeding 1200 DEG C.
Patent GB-1368431-A (GB)
Title: Rhodium complex and methods of preparing the complex
IPC: C07C5/03
Filed: 1970-07-22
Abstract: 1368431 Rhodium complexes JOHNSON MATTHEY & CO Ltd 15 July 1971 [22 July 1970] 35437/70 Headings C2P and C2J A complex of rhodium (I) containing a stabilizing donor ligand is manufactured by a process which comprises adding to a solution of a rhodium (II) carboxylate, protonated by an acid, an excess of the stabilizing donor ligand, which is susceptible to oxidation. The complex may contain a monovalent anion An, which is nitrate, fluoborate, trichlorostannate or carboxylate and which may be introduced into the reaction mixture in the form of an alkali metal salt. Carbon monoxide may also be introduced into the reaction mixture to obtain complexes containing a carbonyl ligand, and one such complex, having the formula is claimed per se. The stabilizing donor ligand may be derived from (1) an organic isocyanide, (2) an organic compound having in the molecule an atom selected from Group Vb or VIb of the Periodic Table, such atom being in such a valency state that it possesses a lone pair of electrons or (3) a stannous or germanium halide. Preferably the stabilizing donor ligand is derived from a tertiary amine, phosphine, arsine or stibine, an organic nitrile or isocyanide, a sulphoxide, a dialkylsulphide or a mercaptan. Most preferred ligands are derived from triphenyl phosphine and triphenyl arsine. The acid used to protonate the rhodium (II) carboxylate is preferably a strong acid and may provide the anion An. The complex reacts with LiCl to give Rh(PPh 3 ) 3 Cl and with LiNO 3  to give Rh(PPh 3 ) 3 NO 3 . In comparative passages, (a) Rh(SnCl 3 )(PPh 3 ) 3  is prepared by adding a solution of RhCl(PPh 3 ) 3  in methylene chloride to a solution of tin (II) chloride in methanol and refluxing and (b) (Me 4 N) 2 [Rh(SnCl 3 )(PPh 3 )] is prepared by adding a solution of RhCl(PPh 3 ) 3  in chloroform to a solution of tin (II) chloride in acetone/methanol, boiling the mixture and adding a solution of tetramethylammonium chloride in methanol.
Patent GB-1433378-A (GB)
Title: Wool scouring
IPC: D01B3/10
Filed: 1973-07-25
Abstract: 1433378 Wool scouring apparatus WOOL RESEARCH ORGANISATION OF NEW ZEALAND (INC) 25 July 1973 [18 Aug 1972] 35468/73 Heading D1L Apparatus for scouring wool comprises a main scouring tank 1 containing hot aqueous scouring liquor through which the wool is passed, a pair of squeeze rollers 2 at the end of tank 1 for removing excess liquor before the wool is passed to the next scouring tank 3, a side tank 5 for receiving overflow liquor and suspended solids from tank 1 via outlet 4 and liquor squeezed out of the wool via trough 6, means including pump 5a for recycling liquor from side tank 5 to main tank 1, and means including heavy solids pump 10 for passing heavy solids from discharge outlet 8 of side tank 5 and from outlet 9 of main tank 12, the settling tank 12 having an outlet 13 for discharge of solids precipitated in the tank and an outlet 14 connected to a lanolin extraction and recovery plant 15 for the spent liquor collected in the settling tank 12. As illustrated a flock catcher 7 may be positioned between scouring tank outlet 4 and side tank 5; side tank 5 may include heating means 5b; and dump tank 11 may be positioned above settling tank 12 to receive discharged solids from pump 10 before they are passed to tank 12. Heat exchanger 16 may be provided to heat liquor passing into the lanolin extraction plant 15, which preferably inculdes a nozzle centrifuge. A flocculant e.g. Al2(SO4)4 or polyacrylamide may be added to the liquor and solids passing or passed to the settling tank 12. Lanolin recovered from the liquor is passed to storage 17 from the recovery plant 15 while other liquor is either passed to waste via surge tank 20a or for recycling to side tank 5 via second surge tank 20b and recycle pump 25. A counter current flow of liquid for the main scouring tank 1 may be provided by a jet distributor 23 at the wool outlet end of tank 1, the jet 23 being fed with liquor from second scouring tank 3 by flow back pump 24.
Patent GB-411546-A (GB)
Title: Improvements in or relating to guide-carriages for spiral gasholders
IPC: F17B1/00
Filed: 1932-12-14
Abstract: 411,546. Gas holders. CUTLER, S., 39, Victoria Street, London. Dec. 14, 1932, No. 35508. [Class 54.] In a spirally guided gas holder in which two pivoted yokes 16, 17 carry a plurality of rollers 21, 25 engaging the opposite sides of the guiderail 22, the two yokes are maintained approximately parallel either by the yokes being provided with contacting or nearly contacting surfaces 26, 27, Fig. 1, or by the rollers being formed with contacting or nearly contacting flanges 29, 30, Figs. 8 and 9. The yokes may be mounted on separate axles 14, 15, as shown in Fig. 1, or may be mounted on the same axle 28 as shown in Figs. 8 and 9. The axles are secured in a bracket 10 by a cap 13 arranged normal to the guide rail so that the securing bolts 9 are only subjected to shear stress. The abutments 26, 27 may be flat or curved and, to reduce friction, may have balls or rollers interposed or may be grooved to receive lubricant.
Patent GB-326186-A (GB)
Title: An improved hand operated load lifting device
IPC: B62B1/26
Filed: 1928-12-03
Abstract: 326,186. Bates, J. Dec. 3, 1928. Hand-trucks.-A tilting appliance for lifting an upended oil-drum or like cylindrical container A having ribs a and bring- ing it to a horizontal position comprises a rectangular frame 1 fitted with transverse members 2 one or more of which engage beneath a rib a of the drum as shown, with means for holding the drum against the frame, and with rockers 9 which have rolling contact with the ground from the position shown substantially to the position at which the drum is horizontal. The device may be constructed as a truck with wheels 18, and struts 19, and with hinged struts, not shown, at the forward end of the frame for support when the drum is horizontal. The drum is held against the frame during tilting by a pivoted hook 22 of adjustable length, or chains may be used. The transverse members 2 are adjustable along the frame. The handles 5 of the frame are pivoted at 7 and bear against lugs 8.
Patent GB-1343409-A (GB)
Title: Preparation of l-a-hydrazino-beta-phenylpropionic acid compounds
IPC: C07C243/38
Filed: 1970-07-23
Abstract: 1343409 L-α-hydrazino-#-phenylpropionic acid compounds MERCK & CO Inc 17 Dec 1970 [24 Feb 1970] 35693/73 Divided out of 1343407 Heading C2C L-Compounds containing not more than 10% of the D-form and having the Formula I (in which each of R<SP>1</SP> and R<SP>2</SP> is H, OH, C 1-6  alkoxy, phenoxy or benzyloxy, each of R<SP>3</SP> and R<SP>4</SP> is H or C 1-6  alkyl and R<SP>5</SP> is H, C 1-6  alkyl, a metal atom or, in the case of a multivalent metal, an equivalent of the metal) are prepared reacting an L-compound containing not more than 10% of the D-form and having the Formula II (in which R<SP>6</SP> is CN, COOH, OONH 2  or dialkyl carbamoyl and X is alkanoyl or benzoyl) with an aminating agent, followed by hydrolysis of the N-acylhydrazine to remove the acyl group, and, if desired, by esterification. Compounds I are useful as decarboxylase inhibitors and antihistaminics.
Patent GB-1194561-A (GB)
Title: Improvements in or relating to Propellant Cartridges
IPC: B25C1/16
Filed: 1967-08-04
Abstract: 1,194,561. Caseless cartridges. DYNAMIT NOBEL A.G. 4 Aug., 1967 [5 Aug., 1966], No. 35890/67. Heading F3A. A caseless propellant cartridge suitable for a bolt setting apparatus and cattle stunning appliance comprises, a cylindrical body 1 of moulded or cast propellant powder having, overall, a substantially circular cross-section throughout its length, a single recess 3 therein, and an impact-ignitable powder charge 4 in the recess or in contact with at least one end of the body and covering the recess. The recess may have a star-shaped cross-section and can extend throughout the length of the body. The powder charge in contact with the end of the body is in the form of foils 2. The interior surface of the foils and at least part of the interior surface of the recess can be coated with an impact ignitable composition of tetrazene or tetrazene tricinate. The charge 4 comprises flakes of explosive having a thickness below 0.2 mm. and a nitroglycerine content of at least 40%.
Patent GB-350373-A (GB)
Title: Improvements in or relating to electrical insulators
IPC: H01B17/36
Filed: 1930-11-28
Abstract: 350,373. Insulators. HERMSDORF-SCHOMBURGISOLATOREN GES., Hermsdorf, Thuringen, Germany. Nov. 28, 1930, No. 35935. Convention date, Nov. 29, 1929. Addition to 339,226, [Class 36, Electricity, Conducting &c.]. [Class 36.] To facilitate the sealing of the air hole 4 in the ceramic closure plate 2 of a hollow insulator 1 of the kind described in the parent Specification, in which the air hole is closed by a readily fusible glass flux, a trough-like depression 5 communicating with the air hole 4 is formed in the upper face of the plate 2 and is adapted to contain the glass flux for sealing the air hole. The glass flux in the depression 5 may be perforated, prior to fusion, along the axis of the air hole to prevent premature sealing of the hole. The perforation may be of smaller or of the same bore as the air hole 4, as shown in Figs. 2 and 3 respectively.
Patent GB-743397-A (GB)
Title: Improvements in or relating to air pre-heaters arranged in smoke gas flues
IPC: F23M20/00
Filed: 1953-12-24
Abstract: 743,397. Recuperators for furnaces. AKTIEBOLAGET GOTAVERKEN. Dec. 24, 1953 [Feb. 18, 1953], No. 35937/53. Class 64(1).  To avoid condensation of hot gases in an air heater comprising a series of plate or tubular heat exchange sections 5-8 arranged in series in a straight hot gas flue 2 or 3, the cold air is supplied by a conduit 11 to an intermediate heatexchange section 6 first, and then flows first to a heat-exchange section 5 or sections downstream in the hot gas path, and afterwards to sections 7, 8 which are upstream in the hot gas path. In the sections 7, 8 the air flows in countercurrent to the hot gas. A damper 14 may be moved to the position 15 to allow the cold air to flow direct to the section 7 and close the air path through the sections 5, 6. As shown, two sets of heat-exchange sections 5-8 are arranged in parallel.
Patent GB-492633-A (GB)
Title: Improvements in devices for withdrawing collapsed folding boxes from a pile and for opening them
IPC: B31B120/30
Filed: 1937-12-28
Abstract: 492,633. Packeting-machines. HESSER MASCHINENFABRIK AKT.-GES., F. Dec. 28, 1937, No. 35946. Convention date, Dec. 28, 1936. [Class 94 (i)] A device for opening collapsed cartons comprises a blade 5 adapted to move longitudinally into the lowermost carton of a stack 1 in a magazine 2. The blade moves downwards and carries the carton with it, the lefthand edge being disengaged from a spring catch 3 and the right-hand edge being drawn down over the inclined surface 6 of a bracket 12. The carton is thus opened into the form shown at S, Fig. 1, one corner resting in a hook 7 and the other in a groove 14 in the bracket 12, and is held in this position while the blade 5 is withdrawn and enters the next carton S<1> at the base of the pile. This one is also moved downwards, and, at the moment when its lower surface would strike the upper surface of the previously opened carton S, a cam 10 moves the corner of the latter off the hook 7, and it is then pushed down between the feed members 15 of a continuously moving conveyer 16. The inclined surface 13 bears on the upper corner and assists in the action. The carton S<1> is now held by the parts 7, 14 and the cycle is repeated.
Patent GB-384454-A (GB)
Title: Improvements in photographic print washing tanks
IPC: G03D3/02
Filed: 1931-12-30
Abstract: 384,454. Photographic washing tanks. INGLIS, A. A., Rock House, Calton Hill, Edinburgh. Dec. 30, 1931, No. 35956. [Class 98 (ii).] A print washing tank has corrugated end walls 7 merging into a curved bottom 8, Fig. 1. An outer compartment 14, Fig. 2, extends across the whole of one side or partition 12 of the tank. The lower part of this side or partition is perforated. The outer compartment is fitted with an open-ended overflow pipe 17 having a branch 18 extending nearly to the bottom of the outer compartment. The pipe 17 is connected to the discharge outlet 15 by means of a detachable watertight joint 16. A water supply pipe 10 extends transversely across the tank and has orifices 11 to supply liquid at or just below the water level and directed towards one of the end walls 7. These orifices increase in size from the inlet end of the supply pipe 10.
Patent GB-946277-A (GB)
Title: A machine for reducing or removing surface defects from gear teeth by electric arc erosion
IPC: B23F19/00
Filed: 1962-09-21
Abstract: 946,277. Arc erosion. OFFICINE MECCANICHE F. SLI DALDI & MATTEUCCI S.p.A. Sept. 21, 1962 [June 19, 1962], No. 36086/62. Heading B3V. Surface defects such as burrs and dents are removed from the teeth of mating gears 2, 3 by running them together with an electric potential applied between them so as to remove the defects by one erosion. Gear 3 is mounted on a shaft 4 insulated at 10, 11 from the frame of the apparatus and supplied with current through a slip ring 12. The other gear 2 is mounted on a shaft 1 connected to earth. Low voltage alternating current is supplied by a transformer 15, Fig. 2 (not shown), with adjustable tappings on its primary winding.