baber/WOPTO huggingface dataset:
Patent GB-1435809-A (GB)
Title: 1h-tetrazole-1-acetate esters and acids and processes therefor
IPC: C07D257/04
Filed: 1973-08-13
Abstract: 1435809 1 - H - Tetrazole - -1 - acetate esters and acids ELI LILLY & CO 13 Aug 1973 [14 Aug 1972] 38132/73 Heading C2C Novel tetrazolylacetate esters and acids having the general formula wherein R is a (C 1 -C 12 ) hydrocarbon radical free from aliphatic unsaturation, a (C 1 -C 12 ) hydrocarbon -O- radical free from aliphatic unsaturation or an -O- alkali metal radical; and R<SP>1</SP> is hydrogen, an alkali metal cation or a (C 1 -C 12 ) alkyl, (C 4 -C 8 ) cycloalkyl, phenyl, behzyl, p-nitrophenyl, p-nitrobenzyl, 2,2,2-trichloroethyl or phenacyl radical, as well those compounds of the above formula wherein R<SP>1</SP> may also be tolyl, xylyl or phenylethyl, are prepared by reacting an acyl cyanide of the formula (II) with an azidoacetic acid or ester thereof having the formula (III) at a temperature of from 80 to 135 C. The resultant tetrazolylacetate ester may be further reacted with either (a) an alcoholic alkali metal hydroxide to form the corresponding alkali metal salt, (b) a base to remove the 5-acyl substituent and form the alkali metal salt of 1-tetrazoleacetic acid, provided that R is a (C 1 -C 12 ) hydrocarbon radical, or (c) with an acid to remove the 5-acyl substituent and form the 1-tetrazoleacetic acid, provided that R is a (C 1 -C 12 ) hydrocarbon -O- radical.
Patent GB-926937-A (GB)
Title: Improvements in or relating to a rotary fuel pump of the kind including cam-operatedpistons
Inventor: BARNARD MARK CARY SEDGWICK
IPC: F02C7/22
Filed: 1960-11-08
Abstract: 926,937. Gas turbine plant; balancing. ROVER CO. Ltd. Nov. 3, 1961 [Nov. 8, 1960], No. 38263/60. Classes 110 (3) and 122 (3). [Also in Group XXVIII] In a swash plate fuel pump (see Group XXVIII) for a variable-speed gas turbine engine and having a revolving cylinder block 27, Fig. 6, driven by the engine, the block engages a stationary valve face 23 with arcuate inlet and outlet ports, the outlet port being divided into two portions 2 and 3, Fig. 2, which deliver into separate burner supply conduits. Outlet portion 2 is longer and delivers more fuel than portion 3. The delivery from outlet 2 is also connected to centrifugally-actuated valves 7 and 8, Fig. 2 (40 and 44 in Figs. 6 and 8) which open when predetermined engine speeds are exceeded to by-pass the delivery from outlet 2 to the pump inlet. Valve 7 is set to limit the maximum engine speed and valve 8 is manually controlled through pistons 54 and 48, Figs. 6 and 8 (8a in Fig. 2) to control the engine speed up to said maximum. In one arrangement, Fig. 2, when increase in speed is required, valve 8 is held closed so that both ports 2 and 3 deliver to burner 11. When the desired speed is reached or deceleration is required, valve 8 is released and delivery from port 2 by-passed, check valve 9 closing and only port 3 delivering to burner 11. For further reduction in fuel supply a valve 10 may be opened to by-pass part of the delivery from port 3. As an alternative to valve 10 and to compensate for altitude changes, the pump delivery may be varied by rotating the swash plate 31 relative to ports 1, 2, 3 thereby varying the relative outputs of these ports. A balance weight 43 is provided on the revolving cylinder block 27, Fig. 8. Specification 819,463 is referred to.
Patent GB-1401046-A (GB)
Title: Electric stepping motor
IPC: H02K/
Filed: 1972-08-17
Abstract: 1401046 Electric motors; core constructions FUJITSU Ltd and FUJITSU FANUC Ltd 17 Aug 1972 [24 Aug 1971 (2)] 38360/72 Heading H2A In an axial air gap electric stepping motor comprising a rotor disposed between two stator elements having axially aligned teeth, the rotor comprises laminated teeth 2 mounted in equiangularly circumferentially spaced slots 5 in a support plate 1, there being further support plates 4 on axially opposite sides of the support plate 1 so that at least a portion of each rotor tooth 2 is sandwiched between plates 4. The teeth shown comprise circumferentially stacked laminations, but the laminations may be radially stacked. Various lamination shapes are disclosed, Figs. 6a to 6d (not shown). The support plate 1 may be made of non-magnetic metal such as aluminium, in which case the teeth are connected to the plate by brazing or staking. The plate 1 is preferably made of non-magnetic and electrically non-conductive material such as ceramic, glass epoxy or epoxy-modified polyimide, in which case an adhesive is used to secure the teeth to the plate. In modified rotors, Figs. 5a and 5b (both not shown), further support members (24) are disposed between the main support plate 1 and the support plates 4 (14 in Fig. 5b).
Patent GB-1027248-A (GB)
Title: Apparatus for cutting machine stalls for the working of underground longwall faces, particularly in hard coal mining
IPC: E21C27/22
Filed: 1963-09-30
Abstract: 1,027,248. Mining machines. DEMAG A.G. Sept. 30, 1963 [Oct. 2, 1962], No. 38484/63. Heading E1F. Stalls for accommodating machinery for subsequent longwall coal-mining, together with galleries, are cut by a machine (Fig. 1) comprising a plurality of roof supporting units 1, 2 adapted to be moved forward in unison as material is removed by a cutter head 8, pivotable in all directions and movable along the coal face, and conveyor 11. The cutter head 8 rotates on arm 7, which contains the cutter drive and is pivotable vertically and horizontally on a carriage 5. The carriage 5 slides along the coal face on guide tubes 3, 4, by means of endless chain or rope 6. Fig. 2 (not shown) illustrates how the roof of the whole width of the stalls and gallery being cut is supported by units 1, 2. Each unit comprises two pairs of hydraulic, telescopic uprights, the pairs on one side of the horizontal actuating cylinder of each unit moving forward together so that the units 'walk in step' when advancing, after cutter head 8 has made a sweep over the coal face. The guide tubes 3, 4 are mounted on the front upright of each unit which moves forward first. Fig. 2 also shows the conveyer as a scraper bucket (18) driven by a winch (21) and linking up with conveyer (15) on to which longwall conveyer (14) also discharges.
Patent GB-363832-A (GB)
Title: The manufacture of new vat dyestuffs
IPC: C09B5/04
Filed: 1930-12-22
Abstract: Vat dyes are obtained by condensing a pyrazolanthrone-2-carboxylic acid halide in which the pyrazole hydrogen atom may be substituted by alkyl, aryl or aralkyl, with an aromatic amine containing in the orthoposition to the amino-group, a hydroxy, mercapto or further amino-group, whereby ring closure may be simultaneous with or subsequent to the formation of the carboxylic acid arylamide.  The products if not already substituted in the pyrazole nucleus, may be aftertreated with alkylating &c. agents, and further substituents may be introduced in the customary manner into the dyes.  According to examples, pyrazolanthrone-2-carboxylic acid chloride is condensed (1) with 2-amino-3-hydroxyanthraquinone, followed by ring-closure with concentrated sulphuric acid, and methylating; (2) with 1-mercapto-2-aminoanthraquinone, with simultaneous ring-closing and followed by methylation; (3) with 1.2-diaminoanthraquinone; as o-diamine, o-phenylenediamine may be employed, and methylpyrazolanthrone carboxylic acid chloride may also be employed. Specification 340,334 is referred to.
Patent GB-850836-A (GB)
Title: Containers or hogsheads made of paper board, metal or other flexible sheets of material
IPC: B65D5/14
Filed: 1957-12-12
Abstract: 850,836. Casks; boxes; packaging tobacco in casks. GAY-BELL CORPORATION. Dec. 12, 1957 [June 27, 1957], No. 38697/57. Classes 18, 21 and 94(1). A container or box is formed from paperboard, metal or other flexible sheets of material scored to define container staves or box panels, the blank having secured to each longitudinal edge thereof a hoop-and-liner, suitably notched to allow the blank and the hoop-and-liners to be bent along said score lines, and flexible lacing means associated with each hoop-and-liner whereby the blank and the hoop-and-liners may be tightly engaged about top and bottom closures. As shown in Figs. 8 and 9 the longitudinal edges of the blank 30, are folded inwardly to present three thicknesses of material and a hoop-andliner 40, with a cross-section as shown, is stapled thereto, each hoop-and-liner having cut-away notches aligned with the transverse score lines 31. Binding wires 47 extending within the hoops-and-liners are used to draw the blank tightly around the top and bottom closures. Alternatively, Fig. 28, the blank may be scored to define a box and there may be perforations through the hoop-and-liners and the folded rims of the box therein such that each binding wire 86 may lie outside the hoop-and-liner, except at the corners where it passes through the perforations to overlie the top and bottom closures 84, 85 (85 is not shown). Additional wires or straps may be placed about intermediate portions of the hogshead in order to give it further support. Packing tobacco into the containers. A charger shell 50, Fig. 13, is rigidly supported above the container 30 and is aligned therewith by clamps 52. A prising machine 55 is then used to introduce tobacco into the container 30 via the shell 50, the operation of the charger being repeated until the container is filled. The container 30 may be reinforced by a removable corset 56 during packing. Specification 843,673 and U.S.A. Specifications 2,554,357 and 2,556,789 are referred to.
Patent GB-387204-A (GB)
Abstract: 387,204. Plugging furnace tapholes. D A N G O, J., DIENENTHAL, W., and DIENENTHAL, O., (trading as DANGO & DIENENTHAL), Siegen, Westphalia, Germany. May 24, 1932, No. 14769. Convention date, April 14. [Class 51 (ii).] In a clay gun for plugging the tapholes of blast and like furnaces comprising a clay cylinder 5 fitted with a piston 4 operated by a compressed air cylinder 2, the cylinder 5 communicates with the nozzle 9 through a bend or lateral connection 7 in which is arranged a rotary valve 8 adapted to close automatically at the commencement of the return stroke of the piston 4 and so prevent suction on the plug. The valve 8 is operated by the action of compressed air, supplied to the casing 13, on a wing 16 which is secured to the valve spindle 14 and rotates between fixed stops 21, 22, Fig. 2. The compressed air connections 19, 20 open one on each side of a partition 18 in the casing 13 and extend therefrom to a four-way cock 24 which has further connections 26, 27 to the cylinder 2 and to atmosphere respectively. In operation, the valve 24 is so set by the lever 23 that when the piston 1, which operates the gun piston 4, reaches the limit of its forward stroke, compressed air passes from the cylinder 2 through connections 26, 19 to the casing 13 to effect closing of the valve 8. The latter is opened, when the piston 4 reaches the fully retracted position, by manual reversal of the valve 24. A hand-wheel 12 is provided for manipulating the valve 8 when the gun is not in operation.
Patent GB-1019593-A (GB)
Title: Hydraulic transmission
Inventor: BROWN PETER HENRY
IPC: B60K17/10
Filed: 1961-10-30
Abstract: 1,019,593. Motor vehicle hydraulic transmissions. DOWTY HYDRAULIC UNITS Ltd. Oct. 19, 1962 [Oct.30, 1961], No. 38760/61. Heading B7H. [Also in Division F2] In a motor vehicle transmission comprising a reversible positive displacement pump 1 driven by the vehicle engine and supplying positive displacement motors 2, 3 driving the front and rear wheels of the vehicle, a valve 4 is manually operable to restrict the supply to either the motor 2 or the motor 3 if wheel spin at the front or rear wheels occurs or to cut off the supply to the rear motor 3 entirely to increase the driving ratio. Reversible feed and return lines from the pump 1 are connected to ports 16, 17 each communicating with two ports 21, 22 and 23, 24 connected to reversible feed and return lines 26, 27 and 28, 29 to the motors 2, 3. Axial displacement of a valve spool 7 by means of a lever 32 restricts the ports connected to both the feed and return lines to one motor but non- return valves 34, 35, 36, 37 ensure that only the feed line is restricted. When the supply to the rear motor 3 is cut off entirely a port 25 connected to a branch 31 from the line 28 communicates with the port 24 to ensure that fluid may circulate freely through the motor 3. A pump 38 supplies make-up fluid to the return line 16 or 17 through a non-return valve 39 or 41 and also supplies cooling fluid to the casings of the motors 2, 3 through a restrictor 44. A non-return valve 48 supplies make-up fluid to the rear motor 3 when it is isolated.
Patent GB-849902-A (GB)
Title: Improvements in and relating to control systems for electrically operated winders, hoists, and the like
Inventor: PETCH THOMAS HAYES
IPC: B66B1/44
Filed: 1956-12-21
Abstract: 849,902. Control of motors; controllers. BRITISH THOMSON-HOUSTON CO. Ltd. Dec. 10, 1957 [Dec. 21, 1956], No. 38961/56. Class 38 (3). [Also in Group XXXV] A winding CW controls the speed of a winder motor according to the difference of voltages derived respectively from a tachometer generator TG and a reference potentiometer RP which is continuously adjusted to provide a desired speed for any point in the wind. The current in the control winding CW is limited to a predetermined value, irrespective of the error signal, by means of a polarized rectifier 3. A braking relay BR is connected in series with a rectifier 8 and responds when the current in resistor 7 is in a direction resulting from the voltage of the tachometer generator being greater than the reference voltage, the relay being actuated when the excess voltage reaches a predetermined value. The relay BR may control the regulating valve of an hydraulic braking engine, and the arrangement may be such that, after the brake has responded, its application is maintained until the end of the wind, the motor providing a driving torque when required. Alternatively, the brake is applied and released intermittently so that the mean effective braking effort is sufficient to hold the motor speed at a required value. In another arrangement, the braking relay is of the moving-coil type and the braking torque varies continuously in accordance with changes in the excess speed. The moving coil displaces a floating lever in opposition to a spring, one end of this lever being coupled to the piston rod of an hydraulic brake engine which is controlled by a pilot valve also coupled to the lever. The braking force is thus proportional to the degree of energization of the braking relay. The coil of the relay is connected to a magnetic amplifier having a biasing control winding opposed by a control winding which is excited when excessive speeds are obtained, so that the amplifier passes a current to energize the braking relay when the excess speed reaches a predetermined value, and the magnitude of the current is increased with further increases in speed, Fig. 3 (not shown). The brake may be of other than the mechanical type, such as an eddy-current brake. The driving motor may be an induction motor adapted for direct-current braking, or it may be a direct-current motor supplied from a Ward-Leonard generator or through rectifiers. Specifications 588,209 and 849,901 are referred to.
Patent GB-848754-A (GB)
Title: Improvements in reinforced rubbery copolymeric compositions
IPC: C08K3/00
Filed: 1956-12-28
Abstract: A cured rubber vulcanisate composition comprises a rubbery copolymer containing a major part of a copolymer of a conjugated diene and a heterocyclic monomer containing a heterocyclic nitrogen atom in the ring and a having a sole H2C = C<substituent on a carbon atom of said ring, said rubbery copolymer having been compounded with a silane free finely ground mineral pigment as the sole reinforcing agent. Specified dienes are 1,3-butadiene, chloroprene, isoprene, piperylene, 2-methyl-1,3-pentadiene, 2,3-dimethyl-1,3-butadiene,phenylbutadiene,2,3-dimethyl-1, 3-hexadiene, 2-methoxy-3-ethylbutadiene, 2-ethyoxy-3-ethyl-1,3-hexadiene, 2-cyano-1,3-butadiene and 2,3-diethyl-1,3-octadiene.  Many heterocyclic compounds are specified, examples being substituted pyridines and quinolines. The copolymers may also contain residues of copolymerisable monomers of which many are specified.  Mineral fillers specified are clays, kaolin, calcium silicate, titanium dioxide, hydrated alumina, calcined magnesia and calcium carbonate.  In the Examples :-(I) a copolymer made from butadiene and 2-vinylpyridine by conventional means is compounded with a butadiene-styrene rubber, silica or aluminium silicate and conventional vulcanising means and cured; (II) aluminium silicate, titanium dioxide and conventional vulcanising means are mixed with (a) and (b) a butadiene/2-methyl-5-vinyl-pyridine rubber, (c) a butadiene/2-methyl-5-vinylpyridine/acrylonitrile rubber and the mixtures cured.
Patent GB-395917-A (GB)
Abstract: 395,917. Motors. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Oct. 31, 1932, No. 30525. Convention date, Dec. 8, 1931. [Class 35.] Machines with vapour or like rectifiers in place of commutators.-In a single-phase motor having a closed armature winding 5, uniformly distributed points of which are fed through controlled valves 3, 4 from a single-phase transformer 2 having a secondary neutral point, the feeding points of the winding are connected through the valves 3 to the external leads of the supply and through the valves 4 to the neutral point, the current being similarly directly with respect to the winding in the valves 3 and opposite to this direction in the valves 4. A distributer 8 driven synchronously with the motor and fed from a control transformer 8 charges the valve grids negatively or positively so that at any instant a valve 3 and a valve 4 connected to diametrically opposite points on the armature winding will be conducting. Speed regulation may be effected by rocking the contact path of the distributer as by a lever 9 whereby the relative angular displacement of the stator and rotor fields is varied. As shown, the winding of the rotary field magnet 7 is in series with the main winding. Separate or compound excitation may be used. Where mercury vapour valves' are employed the current which maintains the cathode spot may also excite the field. Valves, the cathodes of which are directly connected, may be replaced by a single valve having a number of anodes and a single cathode.
Patent GB-967638-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01J5/28
Filed: 1961-11-06
Abstract: 967,638. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES. Nov. 6, 1961 [Nov. 9, 1960], No. 39628/61. Heading H1K. A semi-conductor device is housed in an envelope comprising two separate parts 2, 5 which are later joined together by means of flanges 6, 8, the latter being provided at its periphery with a sharp ridge which is pressed into the material of the flange 6, the flange 8 being enelosed by an edge 16 of the flange 6. Contact of the edge 13 with the edge 16 prevents the ridge bending outwards, and the 45 degrees inner edge 14 prevents the ridge from bending inwards. The base 2 carrying the semi-conductor diode 1, 3 therefore suffers no distortion. The edge 16 may be bent over the top of the flange 8 during the pressing operation. The wire 4 connecting to the diode passes through a metal tube 10 passing through a glass insulator portion 9. After pressing the tube 10 is closed by pinching, welding or soldering.
Patent GB-1003398-A (GB)
Title: Lubricating two-stroke internal combustion engines
IPC: F01M9/04
Filed: 1961-11-07
Abstract: 1,003,398. Reciprocating pumps. G. SCHAFER, O. SCHAFER, G. SCHAFER Jnr., and O. SCHAFER Jnr., [trading as KUGELFISCHER GEORG SCHAFER & CO.]. Nov. 7, 1961 [Nov. 12, 1960], No. 39825/61. Heading FIA. [Also in Division F2] In a pump for supplying lubricating oil diluted with fuel to a two-stroke engine, the oil and fuel are alternately drawn into the pumping chamber from separate sources and are delivered to a mixing chamber. The spring- loaded pump piston 1 is rotated by an enginedriven shaft 2 acting through a worm 3 and a gear wheel 4, Fig. 3. Gear wheel 4 is formed with a cam surface 6 engaged by a fixed cam 7, the arrangement being such that piston 1 reciprocates twice per revolution. The suction stroke of piston 1 is limited by a rod 20 bearing on an eccentric 21 rotatable by a lever 23 spring- biased towards an adjustable stop for minimum delivery. Oil and fuel supply ports 11 and 12 are connected alternately during successive suction strokes to pumping chamber 8 by a groove 9 in piston 1, delivery being effected alternately via ports 13, 13a and an annular mixing chamber 17 to an outlet 19.
Patent GB-903568-A (GB)
Title: Improvements relating to apparatus for controlling the flow of liquids
Inventor: POLAND SYDNEY ALBERT
IPC: F16K31/363
Filed: 1958-12-10
Abstract: 903,568. Valves. PERMUTIT CO. Ltd. Nov. 30, 1959 [Dec. 10, 1958], No. 39856/58. Class 135. The flow of liquid through a pipe 1, Fig. 4 is controlled by a valve actuated in response to a pressure difference in the pipe which may be provided by an orifice or a Venturi shaped portion of the pipe. The valve actuating mechanism comprises a piston 18 which is free to slide downwards in a cylinder 19 under gravity and is acted upon by the pressure differential by leading a high-pressure tapping to the bottom of the cylinder 19 and a low-pressure tapping through inlet 33 to the top of the cylinder 19. A piston-rod 17 is provided with two collars 16 supporting a roller of an arm 11 such that movement of the piston 18 rotates a shaft 5 to control the valve in the pipe 1 such that with a decrease in the pressure difference the liquid flow in the pipe 1 is increased and vice versa. The valve may be closed by supplying liquid to a chamber 43 to raise a piston 42 which acts through rod 41 to raise the piston 18. The valve comprises two sectors 2, 2<SP>1</SP>, Fig. 7, pivotally mounted on shafts 5, 5<SP>1</SP> which are moved by levers 6, 6<SP>1</SP> pinned to the shafts and links 7, 7<SP>1</SP>. The two pressure tappings may be connected by a valve controlled by-pass to control the pressure difference.
Patent GB-956495-A (GB)
Title: Improvements in or relating to the manufacture of surgeons gloves
Inventor: SUTTON SIDNEY DAVID
IPC: B29C41/14
Filed: 1961-11-07
Abstract: 956,495. Moulding surgical gloves. VEEDIP Ltd. Nov. 6, 1962 [Nov. 7, 1961], No. 39888/61. Heading B5A. A glove former from which surgical gloves having a roughened surface can be directly produced by a latex or solution dipping process using natural or synthetic rubber and plastics, e.g. P.V.C. and polyurethane, is made by producing on a rigid glove former a dried coating of natural rubber or synthetic rubber and vulcanizing the surface which is subsequently roughened by solvent swelling action. The coated former is then used as a pattern for the manufacture of a mould for the glove former. A smooth porcelain glove former is dip coated with a solution of natural rubber and a vulcanized skin, formed thereupon by exposure to sulphur chloride vapour for 5 to 10 minutes, is subsequently swollen and roughened by immersion in petroleum solvent for 3 minutes. After completing vulcanization a plaster of Paris cast is taken in which a porcelain clay glove former is moulded which is subsequently fired and glazed. The glove former is used to produce surgical gloves by dip coating with latex coagulated by heat or by a calcium nitrate deposit upon the glove former.