baber/WOPTO huggingface dataset:
Patent GB-1155236-A (GB)
Title: Semiconductor Device for the Control of Alternating Current.
IPC: H03K17/72
Filed: 1967-03-14
Abstract: 1,155,236. Rectifier assemblies. SOC. ANON DES ATELIERS DE SECHERON. 14 March, 1967 [16 March, 1966], No. 11961/67. Heading H1K. A pair of semi-conductor rectifier elements connected in anti-parallel are contained in a common housing between a pair of massive metal plates through which pressure is exerted on the elements either directly or through the housing walls. The elements may both be controlled rectifiers, with independent external control as in Fig. 1, or with a common external control terminal connected within the housing either via resistors to the inner P and N zones respectively of the elements or via a transformer the secondaries of which are each connected in series with a diode and/or a resistor across the cathode and inner P zone of the respective element. Alternatively, one of the elements may be a PN diode rectifier. The massive metal plates 6, 66, e.g. of copper or aluminium, may be outside the housing as in Fig. 1, may constitute the housing walls or be within the housing. In the latter two cases there may be in addition further massive finned metal plates outside the housing. Where there are more than two elements in the housing they may be disposed at the apices of a triangle or in a straight line.
Patent GB-275933-A (GB)
Title: Improvements relating to the manufacture of photographic plates or films
IPC: G03C1/825
Filed: 1927-05-04
Abstract: 275,933. I. G. Farbenindustrie Akt.- Ges. Aug. 12, 1926, [Convention date]. Electric endosmose.-An anti-halation material for coating between the sensitive emulsion and the support of photographic plates or films is prepared by electrodialysis from a solution of an. organic colloid of hydrophil nature, containing manganese compounds. The layer may be prepared, for example, by introducing gelatin, agar-agar, cellulose esters, &c., containing potassium permanganate or manganese dioxide into the middle cell of an electrodialysis apparatus having an electropositive diaphragm such as chrome gelatin, a fabric of animal fibre, chrome leather, &c. on the anode side of the middle cell, and an electronegative diaphragm such as parchment paper, sail cloth, a cellulose ester, &c. on the cathode side thereof. After dialysis, the colloid solution may he neutralized, or mixed with electrolytes or with a further quantity of colloid, before casting on the support.
Patent GB-453819-A (GB)
Title: Improvements relating to snifting valves
IPC: F16K15/18
Filed: 1936-04-29
Abstract: 453,819. Non-return valves. BUCKLEY & TAYLOR, Ltd., and LEAVER, J., Castle Iron Works, Oldham. April 29, 1936, No. 12153. [Class 135] A snifting valve for use with hydraulic pumps has a pipe d depending from the seat of a non-return valve member a, which pipe delivers any water passing the valve into a trap chamber e having an internal lip g which prevents the water passing to the snifting air inlet f. The possible lift of the valve is adjusted to vary the rate of flow to the pump connection h by a screwed spindle b having a locking ring c. When the pump is idle, the valve is kept closed by the spindle b. In a modification, the pipe d has apertures near its lower end, and the chamber e is adjustably threaded thereon so as to leave a gap for the admission of air between the neck of the chamber and the valve casing. This neck is arranged to seat against a packing washer when the pump is at rest. A cap nut is also provided on the lower end of the pipe to lock the chamber in adjusted position thereon.
Patent GB-462501-A (GB)
Title: Improved apparatus for hardening rails
IPC: C21D9/04
Filed: 1936-04-29
Abstract: 462,501. Hardening rails. SOC. ANON. DES HAUTS FOURNEAUX DE LA CHIERS. April 29, 1936, No. 12155. Convention date, May 3, 1935. [Class 72] [Also in Group XXX] In apparatus for hardening rails of the kind described in Specification 450,884, the arms on which the rails to be treated are secured, are provided with steps and devices for holding two or more rails so that such rails may be hardened simultaneously, such stepped arrangement ensuring the straightening of the members treated if they have a tendency to curve and also the rapid clearing of the roller table from feeding the rails to be treated. The arm 2, Fig. 1, is provided with three steps having abutments 3, 4, 5, and the rails when fed from the roller table AV are placed one at a time by members 15 in the stops and are secured against the abutments of the steps by the engagement' with their flanges of hooks 6, 7, 8 which are connected to and operated by hydraulic rocking cylinders such as 17. The hook 6 is connected by links 19, 20 and is held in engagement with the rails by an adjustable stop 21. The hooks 7, 8 are similarly held in engagement with the rails. When the rails are secured in position on the arm 2, the latter is turned until the head of each rail is immersed in separate hardening tanks 30, 31, 32 supplied with cold water from header 33, the water for each rail passing into a chamber 35, then through a perforated plate 36<1> into a chamber 36 and then through a second perforated plate 37 and so in contact with the head of the immersed rail. The chambers 35, 36 are formed by partition plates 38 which also support the plate 36<1>, 37. When the rails have been hardened, the arm 2 is moved upwardly to the position shown in Fig. 4, and a member 41 movably mounted on the yard AR is moved under the rail 1 the nose 42 of the rail 41 being moved upward. The hook 6 is now released by the operation of the piston in the cylinder 17 and the rail deposited in the member 41 which is then moved to deposit the rail on the yard AR. The rails II and III are then released similarly one after the other and placed on the yard AR. The arm 2 now is then moved back to the position shown in Fig. 1 for the reception of further rails.
Patent GB-681745-A (GB)
Title: Building construction material and structures made up by use of the same
IPC: E04B2/78
Filed: 1950-05-16
Abstract: 681,745. Partition walls. ATTWOOD, C. W. May 16, 1950, No. 12194/50. Class 20(iv) Sheet metal building units 30, e.g. studs, having grooves defined by flanges 17 along each of their sides and formed of four channelled elements 30A, 30B, 30C, 30D welded together, are used in constructing temporary or permanent partitions, e.g. for use in offices, units used as studs being connected to similar horizontal units by means of angle plates 31 which are connected to the units by bolts 23 and nuts 18, Figs. 11, 12. Each nut 18, small enough in one dimension to enter a groove in a unit, has bevels 19 which allow it to be turned through a right angle while within a channel element, a spring 22 fixed to its underface pressing grooves formed in its upper face into engagement with the bevelled flanges 17. Panels 32, Fig. 2, are secured to the studs 30 by strips 33, which are clipped into the grooves of the elements 30C, 30D. Where a unit 30 forms a lowermost sill-member, Fig. 3, a strip 133 is used, a strip 333, Fig. 5, being used to close an open groove when a unit 30 is used, e.g. in a door opening. Strips 40, 42, Fig. 10, are used to fix a glass panel 132. A unit 130, Fig. 9, used in a corner position is modified in that only one side member 130C is used, this being offset by an amount equal to the thickness of a panel-member 32. Hinges of a door are fixed to a member 30 by means of nuts 18 and bolts 23, the covering strip being slotted to receive the hinge plates.
Patent GB-1235460-A (GB)
Title: Bearing
Inventor: WINSEL KLAUS
IPC: F16C23/04
Filed: 1970-03-13
Abstract: 1,235,460. Bearings. LEIPZIGER KUGELLAGERFABRIK DKF WALZLAGER-KOMBINAT VEB. 13 March, 1970, No. 12224/70. Heading F2A. In a self-aligning bearing an outer member comprises an outer ring formed of halves 1<SP>1</SP>, 1<SP>11</SP> and an inner ring formed of halves 5<SP>1</SP>, 5<SP>11</SP>; the joints of the outer ring and the joints of the inner ring being offset by 90 degrees. The outer ring and inner ring are connected together by caulking, the outer ring having grooves 8 formed in its end faces to receive the caulked material therein. In assembling the bearing an inner member 3 has the inner ring halves 5<SP>1</SP>, 511 positioned therearound and the latter then has the outer ring halves 1<SP>1</SP>, 1<SP>11</SP> positioned therearound, the inner and outer rings of the outer member are then calked together.
Patent GB-499085-A (GB)
Title: Improvements in apparatus for regulating the entry of corves into mine cages
IPC: B66B17/20
Filed: 1938-04-23
Abstract: 499,085. Charging trucks into mine cages &c. RUHL, K. April 23, 1938, No. 12269. Convention date, April 24, 1937. [Class 78 (iv)] Trucks are pushed into a mine cage by a thrust bar b which actuates a valve a to allow compressed air to flow through a pipe d and operate a piston c<1> whereby a member f swings a stop h into the path of trucks issuing from the cage so that these are temporarily stopped and act as an abutment for the trucks pushed into the cage. On the return of the bar b compressed air is directed through a pipe e and displaces the piston to the left so as to render the stop h inoperative. At the same time, a driver i on a rod g attached to the piston, engages the rear axle of the truck n to push clear the trucks m, n. The rod g may have a hinged section so that the position of the driver i may be adjusted.
Patent GB-1241649-A (GB)
Title: Process for the production of oxalic acid
Inventor: YONEMITSU EIICHI
IPC: C07C51/235
Filed: 1970-03-13
Abstract: 1,241,649. Oxalic acid. MITSUBISHI EDOGAWA KAGAKU K.K. 13 March, 1970 [15 March, 1969; 28 Feb., 1970], No.12325/70. Heading C2C. Oxalic acid is prepared by the oxidation of ethylene glycol and/or glycollic acid with molecular oxygen in a reaction medium comprising nitric acid. Oxygen containing gas may be introduced in a continuous process to the nitric acid medium which may contain sulphuric acid, water, initiators, such as sodium nitrite, formic acid and formaldehyde and promotors such as sulphuric acid, phosphoric acid, acetic acid and vanadium compounds such as vanadium pentoxide, ammonium metavanadate, vanadium trioxide, dioxide and monoxide.
Patent GB-529719-A (GB)
Title: Improvements in or relating to dowel pins employed in the joining of wooden members together
IPC: E04B1/49
Filed: 1939-04-25
Abstract: 529,719. Dowel pins. OPENSHAW, G. April 25, 1939, No. 12362. Addition to 496,338. [Class 89 (ii)] [Also in Group XXII] Tubular dowel pins according to the parent Specification have the edges of the slits serrated at 20 to increase the holding power. The serrations are formed to have a buttress action against withdrawal. The dowel may be formed from sheet metal by slitting a blank and stamping out the serrations in the flat, the blank being then bent to tubular form.
Patent GB-623662-A (GB)
Title: Apparatus for joining the corners of frames
IPC: E06B3/976
Filed: 1947-05-08
Abstract: 623,662. Jointing by stamping and embossing. KOLLER, E. May 8, 1947, No. 12517. [Classes 83 (ii) and 83 (iv)] Making window frames.-In making window and like frames, hollow Z-bar sections are joined by an L-plate, the limbs of which are received in the bars and held by dimpling one of the bar walls into holes in the plate. A horizontal support plate a has an exterior, angled, fixed abutment b and an interior movable plate c with angled abutment arms c<SP>1</SP>, c<SP>2</SP> carrying dimpling pins e adapted for longitudinal outward movement when a wedge d is depressed by a hydraulically-operated, vertically moving, post f. The plate c is connected to the support a by a bell-crank and sprung toggle g<SP>2</SP>, g3, and during a lost-motion of the post f against a return-spring, the toggle straightens to clamp the section bars k<SP>1</SP>, k<SP>2</SP> between the abutments band c<SP>1</SP>, c<SP>2</SP> and final motion of the post f wedges the pins e to dimple the bars k<SP>1</SP>, k<SP>2</SP>. The post f and hydraulic cylinder move laterally with the plate c and the angular bisectors of the abutments b, c<SP>1</SP>, c<SP>2</SP> and frame k<SP>1</SP>, k<SP>2</SP> are coincident. In a modification, the post f is screw-operated, and the wedge d is sprung upwards.
Patent GB-797568-A (GB)
Title: A new antibiotic, paromomycin
IPC: C07H15/232
Filed: 1956-04-24
Abstract: A new antibiotic paromomycin, active against a wide range of micro-organisms including staphylococci and Endomoeba histolytica, is prepared by inoculating a sterile aqueous nutrient medium of pH 6 to 8.5 and containing a source of carbon, nitrogen and minerals with Streptomyces rimosus forma paromomycinus NRRL-2455, and incubating the inoculated medium at 20 DEG  to 35 DEG  C. and especially 23 DEG to 30 DEG  C. under aerobic conditions.  Submerged culture is for 3 to 6 days and surface culture 10 to 15 days.  Carbon sources are used in quanti <PICT:0797568/IV (b)/1> <PICT:0797568/IV (b)/2> ties of 0.5 to 5 per cent, nitrogen up to 6 per cent and mineral 0.1 to 1 per cent.  Specified carbon sources are glucose, d-mannose, d-galactose, corn syrup, starch, soluble starch, malt liquors, black-strap molasses, hydrolysed starches and glycerin. Specified nitrogen sources are amino acids, peptones, hydrolysed and unhydrolysed proteins, fish meal, soybean meal, corn steep liquor, meat extracts, peanut meal, inorganic nitrates, urea and ammonium salts.  A suitable aqueous medium contains glucose, soybean oil meal, hog stomach residue, ammonium chloride, calcium carbonate and sodium chloride. Paromomycin is recovered from the clarified broth by adsorption on a cation exchange resin in the salt form, especially the sodium, potassium or ammonium salt, at pH 6.8 to 7.5, elution with a mineral acid or a base such as ammonium hydroxide followed by adsorption and elution from activated carbon with an organic solvent such as an aqueous or anhydrous aliphatic alcohol or ketone.  Alternatively, the eluate may be adjusted to pH 9.0 to 9.7 treated with carbon, eluted therefrom with dilute mineral acid, the eluate passed through an anion exchange resin on hydroxyl cycle, neutralized, passed through cation exchange resin, eluted with ammonium hydroxide and lyophilized.  Paromomycin is a stable amorphous white substance very soluble in water, moderately soluble in methanol and sparingly soluble in absolute in methanol and sparingly soluble in absolute ethanol; contains C = 45.17 per cent, H = 7.44 per cent, N = 10.35 per cent and balance oxygen possibly (C5H9-11NO3)n forms hydrochloride [a ]25D = 56.5 DEG  (1 per cent water), sulphate [a ]25D = 50.5 (1.5 per cent in water) and other addition salts with mineral acids; the infra-red absorption spectrum of paramomycin shows absorption peaks at 2.93 and 6.25 microns (Fig. 1), the hydrochloride absorption peaks at 6.23, 6.61, 6.66, 8.72, 9.53 and 9.70 microns ant an inflection at 2.95 microns (Fig. 2).  It is usedd in internal and external medicine (see Group VI).  Specification 684,417 is referred to.ALSO:An antibiotic paromomycin (see Group IV (b)), active against a wide range of microorganisms including staphylococci and Endomoeta histolytica, as the free base or mineral acid salt, e.g. hydrochloride is used as (a) a powder with an inert diluent such as talc and starch; (b) an ointment; or (c) aqueous solution with a compatible surface active agent.  Other bacteriostatic agents may be present.
Patent GB-1416645-A (GB)
Title: Wheel anti-locking devices
IPC: B60T8/46
Filed: 1973-03-15
Abstract: 1416645 Anti-lock wheel braking systems ROBERT BOSCH GmbH 15 March 1973 [16 March 1972] 12530/73 Heading F2F A fluid braking system provided with a wheel anti-locking device for a motor vehicle has a return line 7 for the brake pressure medium which is transmissable from the brake line 3 during an anti-locking operation to a low-pressure reservoir 9, a sensor for monitoring the rotational speed of the wheel of the vehicle, and two, two-port, two-way solenoid valves 4, 8 controlled by the sensor. One valve is used for controlling the throughflow of medium through the brake line 3 and has a first valve setting for free flow of medium therethrough and a second setting for flow of medium therethrough by way of a throttle 5 in the valve, the other valve 8 controlling the outflow of medium to the reservoir. As shown, a tandem master cylinder 1 pressurises lines 2, 3 leading, respectively, to front and rear wheel brake cylinders and medium is pumped back to the line 3 by a pump 12 driven by a cam 11 rotated by a vehicle wheel. In an alternative arrangement the pump and non- return valve 10 are dispensed with. During normal braking, the valves 4, 8 assume the position shown in the Figure and the reservoir 9 is empty. If a rear wheel of the vehicle locks, the valves are energized by the sensor, which monitors the rotational speed of the wheel, when the valves assume a second setting in which valve 8 is in a through flow mode and pressure in the brake line 3 is reduced more quickly than it is supplied by way of the throttle 5. After an elapse of time the valve 8 is de-energized by an electronic switch device and returns to its starting position so that brake pressure again increases.
Patent GB-676837-A (GB)
Title: Dose and packaging apparatus for butter shapes
IPC: B65B3/12
Filed: 1950-05-19
Abstract: 676,837. Moulding butter. BENZ, J., HILGERS, H., and ELLINGHAUS, W. May 19, 1950 [May 20, 1949], No. 12551/50. Class 87(ii) Butter is fed by a screw 5, Fig. 1, from a funnel 4 into a space between two pistons 1, 2, which reciprocate in a cylinder 3. The pistons with butter between them, then move together to the right until piston 2 is in the position shown in Fig. 3, then piston 2 stops and piston 1 approaches piston 2, the two pistons being finally aligned as shown with an opening 15 in the cylinder wall. The approaching movement of piston 2 forces butter through opening 15 and duct 7 into a filling or packaging mould. The pistons then return to the Fig. 1 position. The stroke of the pistons may be adjustable, to vary the feed to the mould. In a modification, Fig. 6, two left and right-handed feed screws 5 work continuously, excess butter escaping from the space between the two pistons into a relief cylinder 8 to raise a plunger 9 against a spring 12. A buffer 10 limits the movement of plunger 9. An indicator 17 fixed to piston rod 11 moves across a scale 18. The movement of plunger 9 may be used to control a switch to increase or decrease the speed of the screws as conditions demand, or to stop the machine if the supply of butter fails.
Patent GB-1460363-A (GB)
Title: Multi-channel magnetic transducer lead
IPC: G11B5/17
Filed: 1974-03-21
Abstract: 1460363 Multi-back magnetic heads PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 March 1974 [31 March 1973] 12588/74 Heading G5R The tranducing gaps 7, 7<SP>1</SP> &c. of the magnetic cores 1, 2, 3, 4 of a multi-track head lie on a common line 8, with the windings 12 &c. of adjacent cores having staggered positions, each core having its gap 7 defined between a first and a second pole tip of equal dimensions, the first pole tip being a portion of a respective U-shaped core part 5, and the second pole tip being a portion of a respective L-shaped core part 6, the short limb of each L-shaped part 6 &c. having substantially the same length as each upright (relative to the U-shape) limb of the corresponding U-shaped part 5 &c., and the outside (relative to the L-shape) of the long limb of each L- shaped part 6 &c. and the end face of one upright (relative to the U-shape) limb of the corresponding U-shaped part 5 &c. being located opposite to each other to enclose the corresponding gap 7 &c. therebetween. The windings 12 &c. are located on those upright limbs of U-shaped parts 5 &c. which are remote from the gaps 7 &c. In order that the head elements 1, 2, 3, 4 may have the same inductance as one another in a head wherein the central limbs of U-shaped parts 5 &c. are not all of the same length, the U-shaped parts may be of different cross-section or different permeability to one another or the arrangement of the windings 12 &c. is appropriately adjusted. Adjacent cores may have their windings on opposite sides of the line 8, e.g. as in a head wherein the illustrated positions of cores 2 and 3 are interchanged, to reduce crosstalk. The core parts 5 &c. and 6 &c. may each be formed by a respective single lamination, or a stack of laminations, e.g. of Al-Fe-Si or Ni- Fe-Nb alloy, or made of ferrite. Adjacent cores may be separated from one another by non- magnetic screening material.
Patent GB-915654-A (GB)
Title: Improvements in or relating to coal cutter chains
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C25/36
Filed: 1960-04-08
Abstract: 915,654. Chains. HOY & CO. Ltd., AUSTIN. Aug. 30, 1960 [April 8, 1960], No. 12595/60. Addition to 840,051. Class 24. The lip or flange at one end of the coal-cutter chain hinge pin of the parent Specification is dispensed with, the pin instead being of reduced diameter at one end and the chain links formed accordingly with one of each pair of spaced eyes if less diameter than the other. In one form (not shown), the locking means is otherwise identical with that of the parent Specification. In the form shown, the axial bore in the hinge pin 34 communicates with lateral slots at both its ends so that the retaining pin 42 may be bent over at both ends as shown. In both forms the links may be hermaphoroditic, as in the parent Specification, or non-hermaphroditic.
Patent GB-878950-A (GB)
Title: Hot top for ingot moulds
Inventor: CARTER ROBERT WILBUR
IPC: B22D7/10
Filed: 1958-04-21
Abstract: 878,950. Mould materials; ingot moulds. UNITED STATES STEEL CORPORATION. April 21, 1958, No. 12617/58. Class 83 (1). A hot top comprises a tubular shell 2 having a lining of insulation 6 separated from a onepiece cast inner lining of a high-temperature refractory material 10 by a high temperature- and moisture-resistant cement 8. The shell is of cast steel with a bonded sand ring 4 and the insulating lining of clay and sawdust, which latter burns out to leave a porous fire brick, vermiculite, kieselguhr, mineral wool or silicategel. The cement is a clay or clay/alumina base mortar containing sodium silicate. The refractory is a calcined fireclay or fireclay grog/ alumina product set by calcium aluminate cement. The refractory is coated with a carbonaceous parting compound 12. In forming the refractory layer, an oiled template is used. Vents 14 are formed to assist drying of the layer. Alternatively, the refractory is preformed. Only the sand ring and parting coating need renewal after casting. Specification 428,228 and U.S.A. Specifications 2,046,043 and 2,678,481 are referred to.
Patent GB-797386-A (GB)
Title: Petroleum resins from solvent extracted fractions
Inventor: BANES FRED WENDELL
IPC: C08F240/00
Filed: 1956-04-25
Abstract: A steam-cracked petroleum fraction boiling in the range 30 DEG  to 300 DEG  C. is extracted by a solvent selected from diethylene, triethylene, tetraethylene and pentaethylene glycols and b ,b 1-oxydipropionitrile to give an extract with a bromine number of at least 40 and a specific dispersion of at least 200 which is polymerized with a Friedel-Crafts catalyst at from -20 DEG  to +95 DEG  C.  The steam-cracked hydrocarbon stream preferably contains less than 20 per cent weight of material boiling below 130 DEG  C. and boils in the range 115 DEG  to 275 DEG  C. and the extraction may be of the vapour-liquid or liquid-liquid type preferably in the liquid phase at temperatures from -10 DEG  to 75 DEG  C. and pressures up to 200 lbs. per sq. inch and minor quantities of water or ethylene glycol may be present.  The extracted hydrocarbons are separated from the enriched fraction by water dilution, steam stripping or vacuum distillation in a batch or continuous manner by counter-current flow.  In the polymerization, boron trifluoride or aluminium chloride or bromide catalysts are used in solution, slurry or as complexes, in a batch or continuous process and the product is washed with water or caustic alkali and stripped preferably under vacuum or with steam.  The resins have higher softening points and lower unsaturation and are lighter coloured than the unextracted products.