baber/WOPTO huggingface dataset:
Patent GB-208386-A (GB)
Title: Improvements relating to vehicle lamps
IPC: B60Q1/04
Filed: 1922-12-20
Abstract: 208,386. Howes & Burley, Ltd., and Byrne, J. F. Dec. 20, 1922. Ball-jointed hinges.-A vehicle lamp is adjust.. ably secured to a seating piece f provided on the vehicle by a bolt d in knuckle joint connection with the lamp body. The lamp is provided with a spherical boss b seating in the member f and with an annular member c to which the bolt f is pivoted, and which may be formed integrally with the boss b. The bolt f is made hollow for the passage of electric leads and is secured to a part of the vehicle, such as a mud wing g, in a manner so as to permit rotation of the lamp about a vertical axis by a nut h.
Patent GB-618866-A (GB)
Title: Improvements in apparatus for making annular castings
IPC: B22D13/04
Filed: 1945-12-21
Abstract: 618,866. Centrifugal casting-machines. AKT.- GES. OEDERLIN & CIE. Dec. 21, 1945, No. 34765. Convention date, June 7. [Classes 83 (i) and 83 (ii)] A centrifugal casting machine for making annular castings comprises two disjointed exterior casing parts 1 and 7 and an internal mould consisting of two parts 4 interchangeably disposed in the parts 1 and 7. The part 1 is adapted to be rotated by a shaft 2 and having an annular recess 3 in which is secured one half of the mould 4. The other half is secured to an annular disc 7 which is detachably secured to the member 1 by means of bolts 12 having heads in the form of brackets 14 pivoted on levers 13 which are mounted on the member 7 and are locked in closed position by a ring 16 formed with locking lugs engaging the slotted ends of the levers and with handles by which the ring is rotated. Making bars.-The cast ring may be formed into a straight bar by compressing the inner portion of the ring, cutting and straightening it.
Patent GB-1544687-A (GB)
Title: Arrangement for securing a dial to a plate in a timepiece
IPC: G04B19/14
Filed: 1976-08-20
Abstract: An arrangement for securing a timepiece dial having feet to a plate having bores for receiving the feet comprises attachment means each having a shank with a head, each shank being inserted in an additional bore in the plate substantially parallel to a bore receiving a foot. The head includes a collar, taking the form of a cutting edge, which partially surrounds the head and shank concentrically. The shank includes a cylindrical portion fitted to the diameter of the additional bore and another cylindrical portion of smaller diameter so that the shank may be more easily inserted in that bore.
Patent GB-1519197-A (GB)
Title: Ethynylation catalyst and process for producing alkynols
IPC: B01J31/18
Filed: 1975-08-21
Abstract: 1519197 Ethynylation catalyst GAF CORP 21 Aug 1975 [11 Aug 1975] 34836/75 Heading B1E [Also in Division C2] An ethynylation catalyst comprises a waterinsoluble cuprous acetylide complex and a powdered stable transitional alumina carrier, the cuprous acetylide complex being present in a concentration sufficient to catalyse the reaction of acetylene and an aldehyde to an alkynol, e.g. 5-25 %wt. copper based on the catalyst. The catalyst may also contain up to 5%wt. of bismuth, e.g. as the oxide. The stable transitional alumina may be gamma-, eta-, psendogamma-, kappa- or delta-alumina of surface area of at least 10m<SP>2</SP>/gm. The catalyst may be formed by impregnating the stable transitional alumina or a precursor therefore (e.g. a hydrated alumina or an unstable transitional form such as rho- or chi-rho-alumina), calcining to form copper oxide on the stable transitional alumina and reducing/reacting with aqueous formaldehyde in the presence of acetylene to form the cuprous acetylide complex. The bismuth component may be added with the copper salt.
Patent GB-337996-A (GB)
Title: Improvements in driving gear for use with internal combustion engines
IPC: F02B75/22
Filed: 1929-11-15
Abstract: 337,996. Maina, J. Nov. 15, 1929. Balancing moving parts by weights.-In engines wherein the reciprocating movement of the pistons 18 is converted into rotary movement of main crank shafts 10, by hypo-cycloidal gearing comprising an auxiliary crank shaft 14, driven by the piston rods 16 and carried in roller bearings 12 in crank arms 11 of the main shaft, a pinion 19 is fixed on each end of the auxiliary shaft, the pinions rolling inside internally* toothed wheels 20 carried by machined spigots 21 fixed in the crank case. The pinions have teeth with a pitch circle diameter of half the piston stroke, the internal wheels pitch circle diameter is equal to the piston stroke. The main shafts 10 carry spare wheels 23 which are geared together by compensating lay shafts. In a two cylinder engine the auxiliary shaft 33, Fig. 4, is forged with an eccentric bush 34, for reception of the piston rod 6 with the interposition of a roller bearing 35. Balance weights 36 are secured to the auxiliary shaft by bolts 39 the weights having projections to enter the recesses of the eccentric bush.
Patent GB-343160-A (GB)
Title: Improved process for the production of a mixed gas containing carbon monoxide and hydrogen
IPC: C01B3/34
Filed: 1929-11-15
Abstract: 343,160. Gases containing carbon monoxide and hydrogen. GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.- GES., Oberhausen, Rhineland, Germany. Nov. 15, 1929, No. 34993. Convention date, Nov. 15, 1928. [Class 55 (i).] A gaseous mixture containing carbon monoxide and hydrogen is obtained by passing water or water vapour through a bed of coke which is between the poles of a high-frequency generator so that luminous discharges take place in the coke. The content of carbon monoxide and hydrogen may be varied by varying the frequency and voltage of the current, and the rate of flow of the water or water vapour, the frequencies are above 50000 cycles per second and a voltage of over 30000 is used, the coke being heated by acting as a resistance to the current.
Patent GB-470159-A (GB)
Title: Drilling spindle drive for vertical drilling machines
IPC: A61M3/02
Filed: 1936-12-21
Abstract: 470,159. Drilling-machines. LINDNER, H. Dec. 21, 1936, No. 35065. Convention date, July 27. [Class 83 (iii)] In a drilling-machine having a verticallyadjustable spindle head 1, a pulley 15 is splined to the spindle 7 to move axially with the head and is driven by a belt 16 from a pulley on a motor 18 which also moves vertically with the head. Double chains or cables 10a, 19a connect the head and motor to a balance weight 9 so that all will move together, and the motor is guided on one or more rods 23, or on the machine frame 3. Hand wheels 5, 8 control the vertical adjustments of the head and spindle respectively. Framings and supports.-In order to damp out vibrations of the motor 18, the guide rods 23 are mounted in elastic buffers 25, adjustable by screws 26, and the lower ends have ball heads 23 fitting in holes 27 of the machine frame 3. Alternatively, the motor may be mounted on an elastic sleeve in its base 22, or on a lever which tends to tighten the belt by its own weight.
Patent GB-1476142-A (GB)
Title: Bridge switching amplifiers
IPC: H02P7/29
Filed: 1974-08-09
Abstract: 1476142 Automatic control of speed GENERAL ELECTRIC CO 9 Aug 1974 [4 Sept 1973]  35228/74 Heading G3R Motor control apparatus comprises four switching means 11-14 connected as a bridge, and switch control means 50-53 responsive to drive signals for operating the switches for connecting a D.C. source 19 to a motor 10 in either polarity, and also includes means 29 for producing a signal indicative of the velocity of the motor 10, a first circuit 25-32 responsive to the velocity signal and a commanded velocity signal for generating a velocity error signal, and a second circuit 33, 34 responsive to the error signal and to the motor armature voltage for generating the drive signal, which drive signal is a function of the difference between the velocity error signal and the armature voltage. As shown, a tachogenerator 29 provides a signal via resistor 26 to amplifier 25 and a command velocity signal is also applied via resistor 27. The difference signal is applied via resistor 32 to amplifier 34 together with a signal indicative of the armature voltage which is derived via points 20, 21 and through amplifier 22 and resistors 30, 31. A signal PWC is provided at 34 which is indicative of the difference between the voltage and the speed error signals. This error signal is compared at 42 with a sawtooth signal TW generated at 35 and is added to the sawtooth via resistors 43, 44 and compared with ground at 46. Pulsed outputs are produced, see Fig. 3 (not shown) at 42, 46 and are applied to the switch control circuits 50-53 in real and inverted form as shown. Circuits 50-53 are delay circuits, Fig. 2 (not shown) whereby turn-on of the associated transistor switch, which occurs when the input thereto goes low # high, is delayed but turn-off is not delayed. The comparison of the velocity error signal with the armature voltage increases the linearity of motor response to the velocity command signals.
Patent GB-1468863-A (GB)
IPC: H01H43/10
Filed: 1974-08-09
Abstract: 1468863 Time switches MALLORY TIMERS Ltd (P R MALLORY & CO Inc) 9 Aug 1974 35234/74 Heading H1N An electrical timer includes a driving motor 1, first and second cam means 23 and 33 controlling respective switching means, first and second speed-reduction gearings respectively coupling the motor to the first cam means 23 and coupling the first cam means 23 to the second cam means 33, each said gearing including at least one driving gear with an incompletely toothed periphery. As shown, a gear 22 mounted on shaft 24 and carrying a switching cam 23 is driven by synchronous motor 1 via incompletely-toothed gears 6, 7, 8, 13, providing a greater speed reduction than if they were fully toothed. Gear 22 is integral with a disc 25 having a tooth 26 and recess 27 for stepping a double star-shaped gear 28 which is coupled to a pinion 31 via a ratchet clutch 34. Pinion 31 meshes with a gear 32 to drive second switching cam 33, coaxial with cam 23. The clutch 34 allows for relative adjustment of cam 33 by manual rotation of shaft 24. Cam 33 thus rotates at an even lower speed than cam 23, for example, one revolution in 15 hours.
Patent GB-847610-A (GB)
Title: Oxygenation of steroids
IPC: C12P33/00
Filed: 1956-11-19
Abstract: \se4-pregnene-11a , 17a , 21-triol-3, 20-dione is prepared by contacting \se4-pregnene-17a , 21-diol-3, 20-dione or a lower aliphatic carboxylic acid ester thereof, with the oxygenating activity of a strain of the micro-organism Coryneum cardinale 952 (Italian Cryptogamic Laboratory of the Board of Agriculture and Forests at Pavia).  The Coryneum cardinale micro-organism may be grown in a nutrient medium until mycelial growth is obtained and the steroid reactant is then contacted with the mycelium.  The process is preferably carried out under submerged aerobic conditions at a temperature between 24 DEG  and 30 DEG  C. for from 12 to 48 hours. Detailed examples are given.
Patent GB-900132-A (GB)
Title: Method of producing alkyls
Inventor: JENKNER HERBERT
IPC: C07F7/22
Filed: 1960-10-14
Abstract: Alkyls of silicon are made by reacting a halide, alkoxy or aryloxy compound of silicon with an alkali-metal tetraalkyl aluminium compound in such stoichiometric proportions that the complex aluminium compound yields only one of its alkyl groups. Halide compounds include those of formula SiX4-m Rm where R is hydrogen, alkyl, aryl or an unsaturated organic radical, and m is an integer between 1 and 3.  The reaction may be carried out in an inert solvent, e.g. an aliphatic or aromatic hydrocarbon, a mineral or paraffin oil or the alkyl which is to be produced.  The desired alkyl may be distilled from the reaction mixture, or if preferred, an alkali-metal hydride may be added to complex with the trialkyl aluminium produced, the desired alkyl distilled off and the complex hydride olefinated to the original alkali-metal tetraalkyl aluminium compound.  In Example (3) SiCl4 is reacted with sodium tetraethylaluminium to give Si(C2H5)4.ALSO:Alkyls of boron, tin, zinc, mercury, arsenic, antimony and bismuth are made by reacting a halide, alkoxy or aryloxy compound of the element with an alkali-metal tetraalkyl aluminium compound in such stoichiometric proportions that the complex aluminium compound yields only one of its alkyl groups.  Halide compounds include those of formula ElXn-mRm where El is the selected element, R is hydrogen, alkyl, aryl or an unsaturated organic radical, n is the valency of El and m is an integer between 1 and n-1.  The reaction may be carried out in an inert solvent e.g. an aliphatic or aromatic hydrocarbon, a mineral or paraffin oil or the alkyl which is to be produced.  The desired alkyl may be distilled from the reaction mixture, or if preferred, an alkali-metal hydride may be added to complex with the trialkyl aluminium produced, the desired alkyl distilled off and the complex hydride definated to the original alkali metal tetraalkyl aluminium compound.
Patent GB-395586-A (GB)
Title: Improvements in or relating to aluminium base alloys
IPC: C22C21/06
Filed: 1932-12-14
Abstract: Aluminium alloys consist of aluminium with about 0,75-3 per cent of manganese and about 0,2-0,5 per cent of magnesium.
Patent GB-1359846-A (GB)
Title: Toggle fasteners
IPC: E05C19/14
Filed: 1972-07-04
Abstract: 1359846 Hasp fasteners PROTEX FASTENERS Ltd 4 July 1972 [29 July 1971] 35711/ 71 Heading E2A A fastener comprises an attachment part, a base 10 having two integral upstanding lugs 12 coaxially apertured to journal a lever having a handle portion 14 and parallel limbs 16 with integral inwardly directed projections 20 engaging in the apertures in the lugs to pivot the lever to the base and with further integral inwardly directed projections 18 engaging in a tubular end portion of a hasp, the hasp having a hook 23 at the free end.
Patent GB-819648-A (GB)
Title: Improvements in or relating to chemical nickel plating bath and process
IPC: C23C18/36
Filed: 1955-12-14
Abstract: A nickel plating bath comprises an aqueous solution of nickel ions and hypophosphate ions, a complexing agent which substantially completely complexes all the nickel ions in the bath, and an exalting additive which comprises a simple short chain saturated aliphatic monocarboxylic acid having 3-5C atoms and/or a salt thereof.  The complexing agent may be an ammonium compound e.g. hydroxide, chloride or sulphate, or a nickel chelating agent of general formula X-R-Y where R is an aliphatic radical, X is -COOH, -NH2, =NH or -OH, Y is -OH, =O, -NH2, =NH or ­N, and X and Y are in alpha or beta positions to each other, specific examples of such an agent being malic acid, lactic acid, aminoacetic acid and propylenediamine. The exalting additive may be propionic acid, butyric acid, valeric acid, or an alkali metal or alkaline earth metal salt thereof. The usual catalytic material may be plated.  Specifications 761,062, 785,693, 785,695 and 785,696 are referred to.
Patent GB-1058922-A (GB)
Title: Improvements in and relating to bearings
Inventor: THOMAS HANDEL MEIRION
IPC: F16C37/00
Filed: 1962-09-21
Abstract: 1,058,922. Bearings; lubricating. ENGLISH ELECTRIC CO. Ltd. Sept. 20, 1963 [Sept. 21, 1962], No. 35956/62. Heading F2A. [Also in Division F4] A bearing comprises cooling means which operates to extract heat from the bearing on a liquid-vapour-liquid cooling cycle which is sustained by heat from the bearing and the action of gravity. The bearing (13), (15), Fig. 1, not shown, is lubricated by an oil ring (16) and oil bath (17) into which a closed finned tube (18), (20) extends. The tube (18), (20) contains a coolant liquid, e.g. acetone, which is vaporized in the section (18) by the heat of the oil (17), and condensed in the section (20), possibly by a flow of ambient air created by a machine of which the bearing forms part, to flow back under gravity to the section (18). The section (18) may be formed in the body of the bearing housing.
Patent GB-359592-A (GB)
Abstract: 359,592. Timing ignition. SIMMS, F. R. and SIMMS MOTOR UNITS, Ltd., Percy Buildings, Gresse Street, London. July 29, 1930, No. 22884. [Class 7 (iv).] Automatic advance and retard mechanism is lubricated from the crank case, being lodged either in the crank case itself or in an extension in communication therewith. An upward extension 1 of the oil-filler contains the pinion 5 which drives the magneto spindle 8 through the speed-responsive mechanism 7. This is contained in the casing 15 communicating with the extension 1 by a passage 16, or the ball races 3 may serve for oil transmission. The oil-filler cap may be placed on the top of casing 15. Ribs in the periphery of the casing 15 may guide the oil to a lip in the end wall, from which it drops into the interior of the gear wheel 14. A bore in the spindle 8 may contain a wick feeding radial passages. The mechanism 7 comprises pivoted toothed masses 12 spring-pressed into gear within a central pinion 14.
Patent GB-760033-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J23/24
Filed: 1953-12-29
Abstract: 760,033. Travelling-wave tubes. WESTERN ELECTRIC CO., Inc. Dec. 29, 1953 [Dec. 30, 1952], No. 36055/53. Class 39(1). [Also in Group XL(b)] A travelling-wave tube comprises a hollow wave guide surrounding a cylindrical ridge apertured to form an array of slot resonators individually transverse to the direction of wave propagation but the array extending in the direction of wave propagation, the ridge being in contact with one wall of the guide, the longitudinal spacing of the slots being equal to a small fraction of the free space wavelength of operation. In one form, Fig. 1, a hollow tube 12 with ¢ slot resonators 13 is brazed to one wall of a rectangular waveguide 11, the the beam passes through tube 12. Tube 12 may be replaced by a wire helix. The guide ends are curved so as to decrease the height of tube 12 above the guide wall, for impedance matching. The curved ends of the guide have openings for the insertion of tube 12 during assembly and for the passage of the beam, and have sealed windows to maintain the vacuum. A magnetic focussing field is produced by pole pieces forming parts of the tube wall, Fig. 3 (not shown). The device may use a conventional mode, or preferably a spatial harmonic mode, of positive or negative phase velocity, and may function as an amplifier or oscillator. In another embodiment, Fig. 2 (not shown) a wire helix contacts an inner guide wall via a sheet of dielectric such as mica. The helix can be replaced by a number of discrete wire loops. These circuits may be used in a backward wave oscillator, Fig. 3 (not shown) in which case the collector end of the guide-helix is terminated by a wedge of lorry material to minimize reflections, and the end adjacent the gun is curved and taken out through the tube wall at 90 degrees. Frequency modulation is achieved by suitable modulation of the beam velocity. The wave guides need not be of rectangular cross section. The devices may work at millimetre wavelengths. The design is discussed mathematically, and a numerical example is given.
Patent GB-385429-A (GB)
Title: Improvements relating to the treatment of corrosion or heat-resisting alloys to remove oxide scale therefrom
IPC: C23G1/08
Filed: 1931-12-31
Abstract: Alloys containing chromium and resistant to corrosion or heat are pickled in a moderately dilute solution of hydrochloric or sulphuric acid containing copper, preferably added as copper sulphate.  Various classes of iron-chromium, iron-nickel-chromium, and chromium-nickel alloys are referred to.  Copper is deposited on the scale and the scale and copper may then be washed away by jets of water, or the article after pickling may first be immersed in a solution which dissolves copper without acting on the alloy, e.g. a solution of nitric acid or a solution containing an acid and bichromate, and then washed with a water jet.  The alloys may be given a preliminary treatment with caustic soda or a subsequent treatment with an oxidizing acid.  Inhibitors may be added to the pickling bath.
Patent GB-950531-A (GB)
Title: New or improved means for controlling tractor-implement combinations
Inventor: ASHFIELD HERBERT EDWARD
IPC: A01B49/04
Filed: 1961-10-11
Abstract: 950,531. Tractor power lift mechanisms. DAVID BROWN TRACTORS Ltd. Jan. 7, 1963 [Oct. 11, 1961], No. 36417/61. Heading A1P. A tractor power lift mechanism for use with a semi-trailed implement having a frame 10 connected to a three-point hitch by a headstock 14 includes a valve 22 which controls the supply of hydraulic fluid to a ram 20 for adjusting the height of a ground wheel 19 with respect to the frame. The valve 22 is automatically operated as the front of the implement is raised or lowered and is arranged to effect a delay before hydraulic fluid is supplied to or withdrawn from the ram 20 to raise or lower the rear of the implement. The operating rod 28 of the valve is secured to the rock shaft of the lift mechanism through an adjustable connection and the valve either connects the fluid pressure in the lift mechanism with the ram 20 or connects the ram to the sump through a non-return valve. Normal variations in draft controlled by an automatic draft control device are not sufficient to operate the valve 22 and the ram 20 is held in a constant position by a stop 44. The valve may be operated by relatively movable parts on the implement and may be a rotary valve. The arrangement is such that successive ground working tools are raised out of or lowered into the ground successively. Specification 938,444 is referred to.
Patent GB-1432496-A (GB)
Title: Workpiece guiding device for use in a sewing machine
IPC: D05B35/10
Filed: 1974-08-21
Abstract: 1432496 Guiding work for sewing DURKOPPWERKE GmbH 21 Aug 1974 [22 Aug 1973] 36672/74 Heading D1G Two wheels freely rotating on cranked spindles press against upper and lower pieces of material respectively, to urge the material against a guiding edge 11. By adjusting the angle of the spindles the direction of the wheels and therefore on the material can be altered. The material passes below an upper plate 10 and on either side of an intermediate plate 9. The top wheel can be moved to the right pneumatically by a piston and cylinder 15, whereupon a collar 26 rides up on a cam 25 to lift the wheel slightly against the downward bias of a leaf spring 20. Plates 7 and 8 which separate the plates 9 and 10 from the stitch plate have curved edges 7', 8' and plates 12, 13 have openings through which the wheels contact the material.
Patent GB-1111034-A (GB)
Title: Reactive anthraquinone dyes containing disulphonimide groups
Inventor: HARMS WOLFGANG
IPC: C09B62/024
Filed: 1966-08-17
Abstract: The invention comprises anthraquinone dyes of formula <FORM:1111034/C4-C5/1> wherein R1 is a C1- 4 alkyl radical or a halogen atom, R2 is a C1- 4 alkyl radical, R3 is H or an alkyl radical, A is arylene, Y is -SO2-, -CO- or a direct link, Z is a 5- or 6-membered heterocyclic ring, or a residue containing such a ring, which carries at least one reactive substituent or Z is an aliphatic, araliphatic or aromatic radical containing at least one reactive substituent and R is H or a C1 or C2 alkyl radical.  The term "reactive substituent" is defined as an atom or group capable of reacting with amino or hydroxyl groups of fibre materials to form a covalent bond.  The dyes are prepared by reacting the corresponding anthraquinone dyes containing an -SO2NHSO2-ANHR group with a compound V-Y-Z, wherein V is a substituent, such as Cl, Br or CH3SO2-which will react with the hydrogen of the amino groups.  The dyes give reddish-blue shades on cotton by the usual reactive dye processes. In Examples the aminoarylsulphonimido-anthraquinone starting materials are prepared by customary processes and further reacted with cyanuric chloride, 2 - methylsulphonyl - 4,5 - dichloro - 6 - methyl-pyrimidine, 2,3 - dichloroquinoxaline - 6 - carboxylic acid chloride, 1,4 - dichloro-phthalazine - 6 - carboxylic acid chloride, 2 - methylsulphonyl - benzothiazole - 5 - carboxylic acid chloride, 2 - chlorobenzthiazole - 6 - sulphochloride, 2,4,5,6, - tetrachloropyrimidine and 2,4 - dichloro - 6 - amino - or - methoxytriazine.