baber/WOPTO huggingface dataset:
Patent GB-1357591-A (GB)
Title: Process for preparing a rare earth metal-form zeolite
IPC: B01J20/18
Filed: 1971-05-21
Abstract: 1357591 Rare earth zeolite W R GRACE & CO 21 May 1971 [27 May 1970] 16448/71 Heading C1A [Also in Division C5] A Ce-containing R.E. metal faujasite is prepared by (a) ion exchanging an alkali metal faujasite with a solution of salts of at least two rare earth metals, (b) calcining the exchanged faujasite and then, (c) ion exchanging the calcined partially exchanged faujasite with an additional solution of at least two rare earth metals, wherein the solutions of rare earth metal salts contain Ce in an amount of between 50-70 mole per cent based on the total rare earth metal content of the solutions. The alkali metal faujasite may have a SiO 2 /Al 2 O 3  molar ratio of 1 : 1-15 : 1. The calcination may be carried out at a temperature of 400-1500‹ F. under vacuum or in a N 2  atmosphere to maintain the Ce<SP>3+</SP> state. The rare earth metal salt may be a chloride, sulphate, nitrate, formate or acetate. The rare earth faujasite may have a CeO 2  content of up to 21% by wt. and a residual Na content of the faujasite may be 0À2- 3% by wt. The exchanged faujasite may be subjected to an additional series of calcinations and exchanges.
Patent GB-1254417-A (GB)
Title: Diagnostic agents
IPC: C12Q1/28
Filed: 1970-04-07
Abstract: 1,254,417. Determination of hydrogen peroxide, peroxidase &c. BOEHRINGER MANNHEIM G.m.b.H. 7 April, 1970 [7 April, 1969], No. 16466/70. Addition to 1,186,668. Heading B1X. In the determination of hydroperoxides, of substances which react with the liberation of hydroperoxides, of peroxidase or of peroxidate active substances using the reaction of the hydroperoxides with a chromogen, which reaction is catalysed by peroxidase or peroxidate active substances, the chromogen used has the general formula: in which R 1  is a lower alkyl radical, R 2  is a hydrogen atom, a sulphonic acid group or an alkali metal or ammonium sulphonate group, R3<SP>1</SP> is a hydrogen atom, a halogen atom or a lower alkyl radical, Y is a nitrogen atom or a methine group which together with R 3 <SP>1</SP> can form a benzene ring substituted by R 2 , one of the substituents X<SP>1</SP> is a sulphur atom, a vinyradical, an imino group, which can be substituted by a lower alkyl or an aryl radical, an oxygen atom or a carbon atom substituted by two lower alkyl radicals, while the other substituent X<SP>1</SP> is an oxygen atom or a carbon atom substituted by two lower alkyl radicals. The chromogen may be mixed with a modifier of general formula: in which Ar is a benzene or naphthalene nucleus V is hydroxyl or amino, V<SP>1</SP> is hydrogen or hydroxyl or amino, which may be alkylated or arylated, W is an amino, carboxyl, or sulphonic acid group or an alkyl, alkoxy, or aryl radical, W<SP>1</SP> is hydrogen or an amino group or a carboxyl or sulphonic acid group in free form or as an ammonium or alkali metal salt, or an alkyl, alkoxy or aryl radical. Diagnostic agents comprise peroxidase or a peroxidate active substance and a chromogen (for determination of hydroperoxides or substances reacting to give hydroperoxides); hydrogen peroxide or a substance forming hydrogen peroxide and a chromogen (for determination of haemoglobin or of other peroxidate active substances). The agents may be in the form of solutions or test papers or in films on foil.
Patent GB-410976-A (GB)
Title: Improvements relating to carpet sweepers
IPC: A47L11/33
Filed: 1933-06-08
Abstract: 410,976. Carpet sweepers. ROBINSON, F., and BETTS, C. I., Hart Street, Maidstone. June 8, 1933, No. 16472. [Class 138 (i).] The floor wheels 2 of a carpet-sweeper are mounted on rods 1 which are bent as shown by the portions 1<a> and 1<b>, so that they lie closely against the inner walls of the casing 4 and thus avoid the dust thrown into the dust pans. The rods pass through slots 3 in the ends of the casing and are engaged by springs 6 which press the wheels against the brush roller 8. The portions 1<b> of the rods are supported by springs 5 or resilient arms, and their downward movement is limited by bars 11.
Patent GB-236546-A (GB)
Title: Method of and means for driving the spindles of spinning and doubling frames
IPC: D01H1/241
Filed: 1925-06-26
Abstract: 236,546. Laarmann, O. July 1, 1924, [Convention datel. Spindle-driving apparatus.- The spindles of spinning and doubling frames are driven by a steel band c pressed by rollers f against the wharls b which are covered by a ring of rubber, leather, or like material, the rollers f being similarly covered if desired. The Specification as open to inspection under Sect. 91 (3)(a) comprises also an arrangement wherein the belt is pressed against the wharls by a second row of spindles. This subject-matter does not appear in the Specification as accepted.
Patent GB-749351-A (GB)
Title: Process for the manufacture of symmetrical tetrachlorethane from symmetrical dichlorethylene
IPC: C07C17/04
Filed: 1954-06-03
Abstract: A process for preparing 1:1:2:2-tetrachlorethane comprises chlorinating liquid 1:2-dichlorethylene in the presence of ultra-violet light at a temperature between 20 DEG  and 120 DEG  C. The temperature is preferably 45 DEG  to 60 DEG  C.  The chlorine is preferably finely dispersed as small bubbles.  The dichlorethylene and chlorine may be passed in the same direction or preferably, in counter-current to each other, through a column-like reaction vessel of annular cross-section, in which is mounted an ultraviolet light source, such as a mercury vapour lamp, the chlorine entering at the bottom through a glass sinter.
Patent GB-649701-A (GB)
Title: Improvements in direction finding equipment
IPC: G01S13/02
Filed: 1940-11-15
Abstract: 649,701. Utilizing heat radiations for direction finding. LAWSON, D. I., and PYE, Ltd. Nov. 15, 1940, No. 16521. [Class 40 (iii)] [Also in Group XL (c)] Apparatus for determining the direction of aircraft by the heat from their exhaust gases comprises botometers X and Y forming two arms of a bridge networks to which voltage pulses from the cathode of a pulse transmitter are applied. Bolometer X is situated at the focus of a parabolic reflector, its resistance varying according to the heat radiation imping- ing on it. Bolometer Y is situated in a similar reflector but not at the focus so as to obviate the effect of stray heat radiations. As a result of the change of resistance of bolometer X the bridge is unbalanced and a pulsating voltage appears across points AB, this voltage being amplified and then used to modulate a radio frequency oscillation from an oscillator, an intermediate. frequency resulting which is amplified and rectified and then applied to one pair of deflection plates or the control grid of a cathode-ray tube. A time base applied to the other pair of plates is synchronized with the transmitter pulses. The resultant deflection on the screen of the cathode-ray tube will be a maximum when the reflector is pointing at the aircraft and hence its direction may be determined. A further feature of the invention consists in rapidly switching by means of a switch S from the direction indication circuit described to the detector of a rangefinding circuit of the type in which the time for a pulse to be reflected from an aircraft is measured, the same pulse transmitter, time base generator and intermediate frequency amplifier being used for both circuits. Owing to retentivity of vision both range and direction indications will appear on the screen simultaneously. Specification 649,760 is referred to.
Patent GB-882646-A (GB)
Title: Improvements in multiple-spindle automatic lathes
IPC: B23Q16/00
Filed: 1960-05-10
Abstract: 882,646. Automatic lathes. SOC. DES ETABLISSEMENTS MALICET & BLIN. May 10, 1960 [July 21, 1959], No. 16531/60. Class 83 (3). A multi-spindle automatic lathe with a workturret 3, Fig. 1, and a number of transverse tool-slides 15, arranged on both sides of the centre line of the machine, is provided with selector stop mechanism for each spindle. A gear 2, Fig. 2, rotating with the indexible turret, drives a pinion 1 which, through shafts, bevel gears and worm gearing, intermittently rotates stopdrums 13 with a number of adjustable stops 14, one for each spindle. Each tool slide 15 has a stop-drum adjacent its end and a single adjustable stop 16 on the tool slide co-operates in turn with each of the stops in its corresponding stop-drum.
Patent GB-849640-A (GB)
Title: Improvements in and relating to expanded joints between tubes and plates
Inventor: MELTON ARTHUR JOHN
IPC: F28F9/16
Filed: 1958-05-23
Abstract: 849,640. Tube joints. ENGLISH ELECTRIC CO. Ltd. May 22, 1959 [May 23, 1958], No. 16597/58. Class 99(1). Cylindrical bores 2 in tube plates 1 are provided with tapered helical grooves 3 and tubes 5 closely fitting the bores are expanded into the grooves by a roller expander. There may be circular grooves 6 to serve for edge welding the tubes to the plate.
Patent GB-497277-A (GB)
Title: Improvements in or relating to agricultural machines for piercing the soil
IPC: A01C5/04
Filed: 1937-06-15
Abstract: 497,277. Machines for working land. BROWN, G. June 15, 1937, No. 16619. [Class 6 (i)] A machine for making holes in the ground comprises tools 18 carried by a carriage. 9 which is slidably supported on a bar 8 the ends of which are connected to rotating cranks 2, 3. The tools 18 are thus given a vertically reciprocating motion as the machine moves forward. In order to counteract the horizontal movement of the machine and to prevent the tools from moving horizontally while in the ground the carriage 9 is connected by a link 13 to an auxiliary crank 12 fixed to the pin 11 of the crank 2 and having a shorter throw than the latter. The link 13 is connected to the carriage 9 through a pin 14 which passes through a slot in the link and is fastened to springs 15, 16 secured at their other ends to the link.
Patent GB-1129680-A (GB)
Title: Means for feeding hypodermic needles
Inventor: SHIELDS WALTER ALFRED
IPC: B23Q7/02
Filed: 1967-04-11
Abstract: 1,129,680. Feeding needles. W. A. SHIELDS. 11 April, 1967, No. 16625/67. Headings B8A and B8S. Needles in hopper 20 fall past adjustable gate 25 and are then discharged in the recesses 37 of rotating wheel 32 which carries them round and down past guides 45 to deliver them singly at the lowermost point to jaws 57-58. Hopper 20 (Fig. 2).-The sidewall of the hopper 20 is adjustable laterally by bolts 29 working in slots 30 to permit the use of needles of differing lengths. Hopper 20 is adjustable at 21 to fixed support 22. Jaws 57-58 (Fig. 5).-Jaws 57-58 are carried by unit 64, 66, 68 so that, as slide 68 reciprocates lengthwise the jaws 57-58 are likewise reciprocated and turn with stub 64, being rotated by the engagement of projection 77 thereon with a fixed element on the frame. Also pin 93 on jaw 58 engages an oscillating plate to open and close the jaws. In this way, the jaws 57-58 grip the needle, in a horizontal position and, with a reciprocating and rotating movement, deliver it in a vertical position or orientation to a mandrel 85 (not shown).
Patent GB-960773-A (GB)
Title: Vent device
IPC: F24F13/10
Filed: 1962-05-01
Abstract: 960,773. Ventilators. UNITED-CARR FASTENER CORPORATION. May 1, 1962 [May 8, 1961], No. 16675/62. Heading F4V. [Also in Division F2] A device for venting air or moisture comprises a body 1 of flexible synthetic plastic material having a web 6 which is provided with apertures 7, the latter normally being closed by a flexible valve member 9 attached to the web. The valve member is secured in place by a stud 10 which projects on each side of the web 6 so that the member 9 may be attached to either side of the web. A flange 2 and an annular bead 3 are formed on the body 1 to support the latter in an aperture 5 in a wall 4, the body also having a depending skirt 8. In a modification (Fig. 8, not shown), the skirt 8 is omitted and the valve member is provided with an integral stud which engages in a socket in the web 6. The device may be used in the boot of a motor vehicle to vent air when the boot lid is closed.
Patent GB-145474-A (GB)
Title: Improvements in and relating to temperature-indicating systems and devices, for internal-combustion engines
Filed: 1920-06-21
Abstract: 145,474. Boyce, H. H. June 20, 1914, [Convention date]. Cylinders, cooling.-The temperature of the water in the jacket of the cylinder head or the pipe 6 leading therefrom is indicated by a thermometer comprising a bulb 20 containing fluid and communicating through a flexible pipe 21 with an indicator 22 on the dash-board of a car. The indicator may comprise a Bourdon tube which moves a finger over a dial.
Patent GB-530691-A (GB)
Title: Improvements in internal combustion engines having relative rotation between cylinder banks and encircling annular valve members
IPC: F02B57/08
Filed: 1939-06-07
Abstract: 530,691. Valves. MAWEN MOTOR CORPORATION. June 7, 1939, No. 16737. Convention date, June 7, 1938. [Classes - 7 (ii) and 7 (vi)] In engines in which relative rotation occurs between the ends of a bank of cylinders and an encircling annular valve, the inlet ports in the valve are shaped to direct the incoming gases into the cylinder ports with accelerated velocity. Fig. 2 shows an engine in which the cylinders 10 rotate in the opposite direction to the crankshaft 20, and are surrounded by a stationary annular valve 50 formed with inlet ports 52 and exhaust ports 54, the former having a transverse bridge 76 dividing the port into a narrow leading part 80, which gives the first incoming gases the accelerated speed, and a wider part 78. These parts of the inlet port are shaped as shown in Fig. 5, so that both the leading and trailing edges of the valve inlet ports and the circular cylinder ports 72 coincide in shape. In the case of the exhaust ports 54, only the trailing edges of these coincide in shape with the trailing edge of the cylinder port. The front edges 52 of the inlet passages are curved so as to give the incoming gases a tangential component in the direction of rotation of the cylinder port relatively to the valve. The exhaust passages are also shaped to give the outflowing gases a similar tangential component, and the leading end of the exhaust ports may be narrower than the trailing ends. The inlet and exhaust ports are so arranged that an overlapping communication is obtained with the cylinder so as to effect scavenging.
Patent GB-449838-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M3/30
Filed: 1935-06-11
Abstract: 449,838. Automatic exchange systems. SOC. TELEFONICA INTERREGIONALE PIEMONTESE E LOMBARDA S.T.I.P.E.L., 10, Via Confienza, Turin, Italy. June 11, 1935, No. 16874. Convention date, June 12, 1934. [Class 40 (iv)] Test connections are set up to subscribers' lines over a pair of parallel test distributers and an ordinary connector which is set over distributer G2 whereas a connection for the actual tests is made over the other distributer G1 directly to the wipers of the connector. Plug SP is inserted in the test jack to operate C, and the operator dials ground impulses from J1 and key PR to relay A. The first two digits are repeated to the two vertical magnets 1H, 2H and two rotary magnets 1D, 2D in succession, slow releasing relay V operating change over relay S at the end of the first train. Vertical off-normal contacts are indicated at k. The connector is tested bv 2P which connects the impulsing circuit to the a wire of G2, the circuits of the distributer magnets being open at rotary off-normal contacts w. When the connector has been set, Q(ii) pulls up, holds over Q(i) and the test jack in series with E which does not operate at present, the a and b wires of G1 being now switched through direct to the wipers of the connector. Since there is no connection from G2 to the b wire of the connector the sequence switch thereat does not proceed to the testing position and the cut-off relay of the wanted line is not operated. The operator may therefore test the exchange equipment accessible to the subscriber. To test the subscriber's lino, the operator shunts resistance N by means of key Ug thereby operating E which shunts down slow relay C whereby S is momentarily operated. The a and b wires of Glare thus grounded to release the exchange equipment which may have been operated, and the cut-off relay is operated over the c wire of G1, so that line tests may now be made. Release of the distributers and connector takes place when plug SP is removed. If the connector is found busy, tone is sent to the operator from Occ. The operator may continue observation of the line by throwing TT before withdrawal of the plug SP, whereupon relay R responds to looping of the line and lights lamp TL.
Patent GB-1341661-A (GB)
Title: Mosaic element for luninous circuit diagrams
IPC: H02B15/04
Filed: 1972-04-12
Abstract: 1341661 Mosaic element HEIN GEBR 12 April 1972 [28 July 1971] 16909/72 Heading G5C [Also in Division H1] A mosaic element for use in an illuminated display comprises a laminated display plate 8 which consists of a transparent base 9, a layer of opaque foil, e.g. brushed aluminium, of any desired colour and with the required indicia pressed out or etched and an overlying protective transparent foil 10. The plate is connected by studs 6, 6<SP>1</SP>, 7, 7<SP>1</SP> to a frame 5 with a peripheral groove 4 which is engaged by resilient lugs 3 on the walls 1, 2 of the supporting gridwork. The elements carry indicia, e.g. circuit elements, and the assembled mosaic represents the arrangement and progress of operation of an installation by the illumination of various elements.
Patent GB-734019-A (GB)
Title: Improvements in and relating to scaffolding
IPC: E04G5/06
Filed: 1952-07-07
Abstract: 734,019. Scaffolding; struts. SCHWARZ, B., and BANZHAF, W. July 7,1952 [July 5,1951], No. 17029/52. Class 20 (2). The working area of staging frames which are supported by uprights 1, Fig. 1, having pins 9 engaging in holes in the frames, is widened by means of brackets hung on to the longitudinals 2 of the staging frames. In one form the bracket has two hooks 25, Figs. 2, 3, welded to a plate 26 to which is also welded the supporting arm 27, a strut 28 having a crutch member 29 which bears against a tubular upright 1 of the staging. In an alternative form. the bracket may be formed with an interchangeable strut 33, Fig. 5, having welded at its ends apertured lugs 34 which are inserted in holes 32 in lugs 31 on the upright 1 and supporting arm 27 and retained therein by cotter-pins 36. In another form, for use intermediate the uprights 1, instead of a strut, the supporting arm 37, Fig. 6 (not shown), is extended and formed at its end with a crutch-member 38 which engages under a transverse tube 3 of the staging frame.
Patent GB-1207473-A (GB)
Title: Method for treating microorganism cells or protein extracted therefrom
IPC: A23L1/00
Filed: 1969-04-01
Abstract: 1,207,473. Treating protein. KYOWA HAKKO KOGYO CO. Ltd. 1 April, 1969 [15 May, 1968], No. 17031/69. Heading C3H. [Also in Division C6] Micro-organism cells and protein extracted from cells are bleached and their digestion rate, e.g. with pepsin, is improved by forming a solution or suspension of the cells or protein, adjusting the pH to 3-12, and adding hydrogen peroxide to give a concentration of 0À1-10% by weight. The nitrogen content of the protein is stated to be unchanged by the treatment. Any remaining hydrogen peroxide can be removed with catalase or a reducing agent. According to an example, protein was extracted from cells of Corynebacterium glutamicum previously cultivated in a molasses medium, by heating the cells with hydrochloric acid and then stirring them with caustic soda solution for 2-3 hours. The extracted protein was treated with hydrogen peroxide and the reduction in colour and improved digestion with pepsin determined. Similar determinations were made with cells of Streptomyces griseus after treatment with hydrogen peroxide.
Patent GB-1146824-A (GB)
Title: Well logging system
IPC: E21B41/00
Filed: 1966-04-19
Abstract: 1,146,824. Line transmission. PAN GEO ATLAS CORP. 19 April, 1966 [20 April, 1965], No. 17155/66. Heading H4R. [Also in Division G3] In a well-logging apparatus, in which a D.C. source 16 at the earth's surface provides power, via a cable 10, for a sub-surface measuring unit 28, the unit is provided with means for developing an A.C. signal whose frequency varies in accordance with the actual voltage supplied to the unit, and which is transmitted back to the surface to be used as an indication or control of this voltage. The D.C. power supply 16 is connected through the cable 10 to provide a low voltage supply to a radiation or acoustic detector 28 and to an oscillator 38, the latter serving to generate a high voltage supply for the operation of the detector. The return lead includes an adjustable series resistor 23, 24 and a current regulating transistor 22. In normal operation, the current (and voltage) is kept constant by continuously controlling the transistor 22 in accordance with the difference between the voltage drop across resistor 23, 24 and a reference voltage from source 60. Additionally the voltage at the subsurface end of the cable is measured by detecting the frequency of the ripple voltage imposed on the supply by the varying impedance of the oscillator whose frequency of oscillation is arranged to vary with the applied voltage. The frequency of the ripple voltage is detected by frequency discriminator 52 whose D.C. output represents by its magnitude and polarity, the magnitude and sense of the deviation of the ripple frequency from normal. This output may be displayed at 56 or added to the current control signal in comparator 62 to compensate for leakage current in the cable due e.g. to defective insulation. The output from the detector 28 is also transmitted to the surface by pulse signals induced in the cable by coil 26 and separated from the ripple signals in amplifier 50.
Patent GB-153056-A (GB)
Title: Improvements in spring road wheels for vehicles
IPC: B62M25/00
Filed: 1920-01-08
Abstract: 153,056. Bagshaw, G. H. Jan. 8, 1920. Spring wheels with continuous outer rigid ring and helical springs.-Relates to spring wheels of the type in which an inner wheel is connected by springs to an outer wheel. The outer wheel comprises rims a, a<2> connected by spokes a<1>, supported by springs c from the inner wheel b. Tangential springs d connect the rims a, b, being secured to the outer rim a through arched straps a<3>. The inner wheel is made in two parts which are assembled to embrace the spokes a'. In a modification, the spokes a<1> and the springs are duplicated and the inner wheel is made in three parts. Reference has been directed by the Comptroller to Specification 127,096.
Patent GB-290060-A (GB)
Title: Improvements in or relating to processes for cracking vegetable and mineral oils
IPC: C10G11/00
Filed: 1927-06-29
Abstract: 290,060. Soc. Anon. le Carbone. May 14, 1927, [Convention date]. Hydrocarbons, cracking.-Low boiling point oils are obtained from vegetable and mineral oils by passing them through heated activated porous carbon in block form. Gas oil containing 75 per cent distilling over 250‹ C. is passed through activated block carbon heated to 350‹ C. and a product is obtained comprising 35 per cent combustible gases and a liquid residue containing 6 per cent distilling up to 110‹, 6 per cent from 110-150, 9 per cent from 150-200, 20 per cent from 200-250‹ C. Specification 288,588 is referred to.