baber/WOPTO huggingface dataset:
Patent GB-291783-A (GB)
Title: Improvements in or relating to stocks for small-arms
IPC: F41A21/48
Filed: 1928-03-20
Abstract: 291,783. Pedersen, J. D. June 9, 1927, [Convention date]. Barrels; trigger guards; stocks.-One or more reinforcing members are arranged transversely in the stock of a smallarm and serve to secure the trigger guard or receiver or both; and a bolt securing the receiver to one of these transverse members serves to lock the barrel against unscrewing from the receiver. As shown, a transverse member 199 with studs 200, 201 extends across the stock 1 behind the magazine 2', and the front end of the trigger guard 7 is secured thereto by a bolt 202. Another similar transverse member 203 extends across the stock at the front end 206 of the receiver 2, which is secured thereto by a bolt 207. The end of this bolt fits into a notch 209 in a flange 3<1> on the barrel 3, and prevents the unscrewing of the barrel from the receiver 2, and also ensures that the barrel is properly screwed home into the receiver before these parts can be attached to the stock. The rear ends of the receiver and of the trigger guard are fastened to the stock by a bolt 194.
Patent GB-572354-A (GB)
Title: Improvements in or relating to two-stroke internal-combustion engines of the opposedpiston type
IPC: F02B75/22
Filed: 1944-05-05
Abstract: 572,354. Two-stroke engines. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. May 5, 1944, No. 8552. Convention date, April 8, 1943. [Class 7 (ii)] The motion of two adjacent pistons 2, 3, of an internal combustion engine of the twostroke opposed piston type is transmitted by means of links 17, a common rocking lever 18, and a common connecting rod 26 to a crank pin 28, on the crank shaft 30 about which the cylinders are arranged tangentially to a circle 20, concentric with the axis 21 of the crankshaft and substantially at right angles to it. The rocking levers, pivoted about pins 24 secured in the casing 23 carry at their inner ends pins 25 to which are attached the connecting rods, and are formed with forks 31 of such width that after removing the pin 32 connecting the rocking lever and the link the corresponding piston can be withdrawn from the cylinder without interference. The crank pins 28 and 36 are disposed at 180 degrees to each other as are also crank pins 43 and 44. There may be more than four cylinders about the circle and a second series of four or more may be disposed about the correspondingly extended crank shaft as in Fig. 2.
Patent GB-1406440-A (GB)
Title: Electronic camera tubes
IPC: H01J31/36
Filed: 1972-02-24
Abstract: 1406440 Image pick-up tubes ENGLISH ELECTRIC VALVE CO Ltd 21 Nov 1972 [24 Feb 1972] 8561/72 Heading HID In a camera tube having a target structure mounted between an image intensifier section 1 and a scanning section 2, the target and its mounting arrangement constitutes an hermetically sealed wall between the two sections, whereby contamination of the target surface facing the scanning gun by alkali metal vapour, during the processing of the photocathode, is prevented. As described, the target 8-insulated from the envelope by a spacer 9-is constituted by a mosaic of diodes formed on a slice of silicon or germanium, and is mounted between a conductive annulus 10 and ring 14 by a conductive epoxy compound 13, or a eutectic alloy solder, or a low fusion glass. To further protect the target 8 from alkali metal vapours, the surface facing the photocathode-which is formed on the inner concave face 5 of the light fibre bundle 3-may be coated with a 500 angstrom thick layer of alumina or silicon nitride.
Patent GB-556505-A (GB)
Title: Improvements in or relating to cathode structure
IPC: H01J1/16
Filed: 1942-06-23
Abstract: 556,505. Thermionic valves. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 23, 1942, No. 8626. Convention date, June 24, 1941. [Class 39 (i)] A cathode is formed of folded ribbon with the emitting surface 10 of reduced cross section to increase its resistance ; this may be effected by making this part thinner or by slots 11. Current flow in the return parts 15, 16 is in opposite direction to that in the part 10, to neutralize the magnetic effect. The supports 17, 18 may be to one side of the cathode, one return fold passing right under the part 10. The cathode may be mounted close to a control grid 25, Fig. 1, supported by rods 26 from the insulating end 27. A water-cooled collecting electrode 34 is placed inside a resonator 30, to which the end 27 is attached by the discs 29, 32 and bolts 33. The ribbon may be of nickel, thoriated or plain tungsten or of Konal metal, a nickel-cobalttitanium alloy. Dimensions of the cathode are given.
Patent GB-1375064-A (GB)
IPC: H01L29/768
Filed: 1972-02-25
Abstract: 1375064 Charge coupled devices INTERNATIONAL BUSINESS MACHINES CORP 25 Fob 1972 [29 March 1971] 8756/72 Heading H1K In a charge coupled device comprising a plurality of electrodes separated from the surface of a semi-conductor body by a layer of insulating material, each electrode comprises two areas of materials of different work functions electrically connected together so that when a voltage is applied a multi-level potential well is formed in the body. As shown, an N-type Si substrate 10 is provided with a thick insulating layer of SiO 2  or Si 3 N 4  which is masked and etched to leave thick ridges 11 of insulator, and a thin insulating film 16 is applied to the areas of the surface of the body between the ridges which are to form the charge transport paths. A layer of a first conductive material is applied and masked and etched to leave rows of spaced areas 15 on thin insulating layer 16, the areas 15 in adjacent rows being staggered. A layer of a second conductive material is applied and masked and etched to form tracks 18 which extend at right angles to the ridges 11 between which they overlap the areas 15 of the first material. The first and second conductive materials are selected to have different work functions so that when a voltage pulse is applied an asymmetric potential well is created permitting unidirectional charge transport by means of two-phase shift pulses. The tracks 18 overlap oppositely directed edges of the areas 15 of the first conductive material in adjacent transport paths so that the charge is shifted in opposite directions. Two such paths may be joined at their ends (by refresh circuits if necessary), to form a circulating memory. The first and second conductive materials may be Hf and Pt but a list of other suitable materials together with their work functions is given from which pairs of suitable materials may be selected. The use of the combination of heavily doped Si with Al is mentioned.
Patent GB-780579-A (GB)
Title: Improvements in or relating to textile machines
Inventor: HASLAM-JONES FRANK HORSFIELD
IPC: D01H1/20
Filed: 1954-03-25
Abstract: 780,579. Lace machines. JARDINE, Ltd., J. March 24, 1955 [March 25, 1954], No. 8762/54. Class 74 (1). [Also in Group IX] As a hand-operated " inching " shaft 4 is slid axially towards an electric-motor driven shaft 1, to interengage gears 2, 3, first the thinner part of a bush 8 moves a plunger 11, to open the driving motor switch and cause application of a brake to stop the machine ; next, the thicker part of the bush moves the plunger further, closing another switch, to energize brake-releasing solenoids and so to free the shaft; and, finally, the gears engage.
Patent GB-540753-A (GB)
Title: Improvements in and relating to fluid pressure governors
IPC: F24H9/20
Filed: 1940-05-16
Abstract: 540,753. Fluid-pressure governors. ASCOT GAS WATER HEATERS, Ltd., and GREEN, L. A. May 16, 1940, No. 8768. [Class 135] A fluid pressure governor is actuated by a hollow flexible member such as a bladder mounted in a casing in such a manner that it is substantially confined by the walls of the casing leaving only a section which is free to rise and fall according to variations in the pressure of fluid admitted to the inside of the flexible member. In the form shown the flexible member 10 is secured to a partition 27a by inter-engaging flanged rings 28. The partition 27a is secured to the main casing 24 by a cover 25 which also carries an adjustable abutment 30 by a loading spring 29 acting on a plate 15 resting on the upper surface of the flexible member. The valve member 31 which co-operates with a removable seat 32 is mounted on a spindle 33 having a head 34 held against the inner surface of the flexible member by a light spring 35.
Patent GB-314117-A (GB)
Title: A new or improved advertising sign
IPC: G09F13/14
Filed: 1928-03-23
Abstract: 314,117. Saunders, L. O., and Kirby, T. C. March 23, 1928. Signs. - The mirrors d of daylight reflector signs are formed of two superposed sheets of glass with unbacked silvering between, which acts as a reflector to illuminate the display sheet b, Fig. 2, during daylight and as a transmitter to allow light to pass from the electric lamp e, or from stop lights through the open back of the casing, at night. Fig. 3 shows a modification in which one display sheet c is reflected by daylight and a second one c<1> on the back of the mirror at night. The bottom a<5> of the casing may be open to illuminate objects in a shop window below the sign.
Patent GB-828911-A (GB)
Title: Improvements in or relating to the purification and separation of tetracycline
Filed: 1956-03-21
Abstract: Tetracycline is recovered from a fermentation broth by treating the clarified broth with a substantially water-immiscible organic solvent at a pH of not less than 7.5 especially 7.5 to 10.5 and particularly 9 to 9.5 to form a solution of the tetracycline in the solvent and recovering the tetracycline therefrom by (a) extraction with water at a basic pH, e.g. 9.5 and adjusting with acid to 3.8 to 7.0 and especially 4.0 to 4.5 to precipitate the tetracycline; (b) adjusting to pH 3.8 to 7.0 and preferably 4.0 to 4.5 with mineral acid and the addition of water to precipitate the tetracycline.  The tetracycline may then be converted to an acid salt, e.g. hydrochloride, sulphate, phosphate, oxalate, citrate, sulphamate or nitrate by adding the desired acid to produce a pH 1.5 to 2.5, preferably pH 2.0 in an aqueous organic solvent solution of the crude tetracycline. Purification of the tetracycline may also be obtained by dissolving the tetracycline in water or an aqueous organic solvent at pH 1.5 to 2.0, filtering and adjusting to 3.8 to 7.0 to precipitate the tetracycline.  The clarified broth is produced by filtering or centrifuging the broth adjusted to a pH of less than 5.0 and preferably 2.0 with a mineral acid.  Calcium ions present in the tetracycline organic solvent extract may be removed by acidifying to a pH of 1.5 to 2.5 with an acid or mixture of acids, one of whose anions forms an insoluble salt with the calcium cation, e.g. sulphuric or oxalic acids and filtering off the precipitated calcium salt.  Specified water-immiscible organic solvents are alkanols of 3 to 8 carbon atoms, e.g. butanol, pentanol and hexanol, cycloalkanols, e.g. methyl cyclohexanol, aralkanols, e.g. benzyl alcohol, alkanones, e.g. methyl ethyl ketone, cycloalkanones, e.g. methyl cyclohexanone and "Cellosolve" (Registered Trade Mark) acetate.  Tetracycline is separated from a mixture thereof with chlortetracycline by dissolving the mixture in a substantially water-immiscible organic solvent and water at a pH of not less than 7.5 and adjusting the pH of the resulting solution to 3.8 to 7.0 to precipitate the tetracycline therefrom. Specification 796,493 is referred to.
Patent GB-1506271-A (GB)
Title: Monophonic electronic musical instrument
IPC: G10H1/22
Filed: 1975-03-04
Abstract: 1506271 Electronic musical instruments HAMMOND CORP 4 March 1975 [4 March 1974] 8919/75 Heading G5J In a monophonic instrument such as a synthesizer, keys 10 produce control signals on individual leads 40 for each note, control signals corresponding to notes of the same name are collected at 60 and employed to gate out the appropriate tone from a top octave generator 100 to a set of dividers 170 and control signals corresponding to individual octaves are colected at 70 and employed to gate out the tone in the correct octave from the respective frequency divider 170. In the simple form of Fig. 2 only one key may be operated at a time. In an alternative (Fig. 1, not shown) which allows the instrument to share one keyboard of a fully polyphonic organ (not shown) a low octave lock out circuit and note and octave preference circuits (Figs. 3, 4, not shown) of the kind described in U.S.A. Specification 3,766,305 are incorporated so only the tone corresponding to the highest key pressed is sounded. Further circuits of the monophonic instrument are described in Specifications 1,506,272 and 1,506,273.
Patent GB-351047-A (GB)
Title: Improvements in or relating to continuous glass grinding and polishing machines
IPC: B24B7/24
Filed: 1930-03-20
Abstract: 351,047. Grinding. PILKINGTON BROS., Ltd., 631, Tower Building, Water Street, Liverpool, and GRIFFIN, J. H., Stoneycroft, Moss Bank, St. Helens, Lancashire. March 20, 1930, No. 8936. [Class 60.] Flat extended surfaces, surfacing.-In a continuous glass grinding and polishing machine, wherein the glass is prevented from lateral movement on the tables 1 by means of wooden pegs 3 fitting in holes 2 in the tables, the pegs are lowered after grinding the glass, to allow the tables to be cleaned, by means of pins 8 carried by discs 6 supported by adjustable bearing brushes 9 in a framework 5. The discs may be driven by the engagement of the pins 8 in the holes 2 or by independent gearing, for example, rack gearing. The pegs are raised, at the initial stage of the grinding operation, by a hammer 12, Fig. 3, pivoted at 13 and pressed upwardly by a spring 15, the movements of the hammer being controlled by cams 20 on the table 1, which engage a roller 16 mounted in a block 17 pivoted at 18 to the hammer. The height to which the pegs rise is determined by their contact with the body of the roller 21 having a flange 22 riding on the surface of the table 1; a non-rotating body may be used in place of the roller. According to the Provisional Specification, the hammers may be actuated by pneumatic or electrical power.
Patent GB-194162-A (GB)
Title: Clamp or holder for use in meat slicing and like machines
IPC: B26D7/02
Filed: 1922-03-28
Abstract: 194,162. Parry, E., Parry, F., and Humfrey, J. H., (trading as Parry E. & F.). March 28, 1922. Cutting slices in succession; holders. -A clamp for use in meat-slicing and like machines comprises a lever 1, slidable on a bar 3 secured to the back of the meat-table, a grip-plate 5, on the lever 1, having grooves or projections facing a similar gripping- surface on a member 10, which is slida.bly mounted on the lever 1 and is held in position by a pawl 12 and ratchet teeth 8. A roller 14, or ball, facilitates the movement of the member 10 over the meat-table. The lever 1 is slotted at 7, and the pawl 12 is mounted on a block 9 and is released by a spring-pressed lever 15 attached to the pawl. The meat-table is reciprocated by a handle 16 which also serves to slide the clamp along the bar 3, thereby feeding the meat to the knife.
Patent GB-439350-A (GB)
Title: Improvements in means for supplying air to furnaces
IPC: F23L9/00
Filed: 1935-03-22
Abstract: 439,350. Supplying air to furnaces. AMERICAN ENGINEERING CO., Aramingo Avenue, Philadelphia, U.S.A. March 22, 1935, No. 9012. Convention date, Jan. 16. [Class 51 (i)] In a furnace provided with an underfeed stoker secondary air is delivered above the fuel bed through fluid cooled ducts 12, Figs. 1 and 2, the walls of which are constituted by tubes 14 carrying the cooling fluid some of which are spaced apart to provide air delivery openings. The ducts are inclined and mounted in the furnace walls and may be arranged longitudinally or transversely above the fuel bed. The tubes are connected to headers 16, 17 which communicate with the boiler 18. Air is supplied to the lower ends of the ducts from a header 21 and branch pipes 22. Spacing members 24 are provided between the tubes or alternatively the tubes may be provided with longitudinal projections 27 as shown in Fig. 4. The tubes may be arranged to form conduits which are circular in section instead of elliptical as shown. According to a modification the ducts are arranged in staggered relation.
Patent GB-311512-A (GB)
Title: Improvements in apparatus for coiling and packing the slivers of flax, hemp and similar fibres into cans or equivalent receptacles
IPC: B65H54/78
Filed: 1928-03-26
Abstract: 311,512. Eves, J. V. March 26, 1928. Coilers. - In an arrangement for coiling and packing slivers of flax &c. into cans the packer head, which conforms to the contour of the cans, is provided with a large vertical or funnel - shaped opening through which the sliver passes to the can, and with a sufficient surface at the sides or ends of the opening to act as a compressor of the material in the can. The sliver may be delivered from a spreadboard A, Fig. 1, by means described in Specification 305,792 and be delivered by a pair of oscillating guides M<2> into a funnel-shaped opening in the packer head N. The lower surfaces of the sides n<1> act to compress the material in the can O. A pair of pivoted guides carried inside the packer head and swung from side to side by a trip lever R engaging a pendulum lever r<1> on each upward movement of the head may direct the sliver laterally over the can. The packer head is carried by an arm T fitted on rods t sliding in a bracket T<1>. The arm T is pivoted on one rod and clamped at the outer end to the other, so that it mav be swung to one side. The packer head is lifted by a crank u, chain U<1>, and snail arm U<2> on a shaft U<5>. A second chain U<4> is attached to a drum U<3> on this shaft and to a bracket at the foot of the lifting rods t. A weight W on a chain wheel w assists the descent of the packer head. The drum U' is loose on the shaft U<5> and is operated by an arm L, Fig. 6, on the shaft engaging a pin l projecting from the drum. A lever V engaging a notch in a ring attached to the drum U' prevents the packer from descending. A cam y<1> loose on the shaft U<5> is attached to a ratchet wheel w<2> engaged by a pawl w<1> carried by the chain wheel w. The lever V is carried by a shaft G, which also carries a loose lever V<1> resting on the cam y<1> and a spring bracket y. When the lever V<1> is lifted by the cam it operates the lever V through the spring y and releases the chain drum U<3> allowing the packer to descend. By alteration of the ratchet wheel w<2> the number of movements of the arm W2 relatively to the descents of the packer head can be adjusted. The pawl w<1> can be raised and the packer head remain locked in its lifted position by the lever V for any desired period.
Patent GB-622768-A (GB)
Title: Improvements in or relating to cooling apparatus for use with aero or other engines
IPC: F02C7/12
Filed: 1947-04-03
Abstract: 622,768. Propulsion plant. NAPIER & SON, Ltd., D., COWDREY, C. L., and GREENLY, K. H. April 3, 1947, No. 9115. [Class 4] [Also in Group XXVI] Combustion air for an aero-engine driving an airscrew A<SP>1</SP> is taken in through a ducted spinner air intake C. Between this intake and the fixed annular air duct E there is an annular opening K through which part of the air is extracted, which is then passed for use in an oil cooler O or other cooling or ventilation. After use, this air is led by a duct Q to a space R between the engine exhaust J and its casing. The blast of the exhaust assists the flow of air through the oil-cooler.
Patent GB-160792-A (GB)
Title: Improvements relating to iron and steel and to alloys of the same
IPC: C22C38/32
Filed: 1921-03-24
Abstract: 160,792. Walter, R. March 24, 1920, [Convention date]. Alloys.-Iron or steel or their alloys, which may contain carbon phosphorus, nickel, cobalt, chromium, manganese, tungsten, or molybdenum, contain also 0.0001-0.1 per cent of boron.
Patent GB-550709-A (GB)
Title: Improvements relating to rope and cable grips or jockeys
IPC: F16G11/10
Filed: 1941-07-18
Abstract: 550,709. Rope grips. WHITEHEAD, S. July 18, 1941, No. 9137. [Class 78 (ii)] Relates to rope grips of the kind comprising a pair of sliding jaws 9, 10 one operable by a helical or inclined cam 14 of coarse pitch to effect initial engagement of the jaws with the rope and also to effect quick release, the other operable by a helical cam 25, 26 of finer pitch so as to effect the final tightening of the jaws on the rope. According to the present invention the tightening cam comprises two co-axial annular cam surfaces 26, 27 on a rotary member 25 co-operating with a similar number of cam surfaces on the tightening jaw 10, the cam surfaces being all of equal pitch and those in each set being angularly offset from one another by an angle equal to 360, degrees divided by the number of surfaces in the set. In the construction shown the grip comprises a body 1 formed with end walls 2, 3 which take the thrust of the jaws 9, 10. The jaws are slidably mounted on a bolt 6 and are prevented from rotating thereon by means of flanges 13 engaging the sides of the base. The jaw 9 is provided with cam members 23, 24 co-operating with similar cams 21, 22 on a collar 14 which is rotatable on the bolt and has an operating arm 15 normally kept in the upright position shown, in which the jaw 9 is brought to the rope-engaging position, by a spring catch 17. The other jaw 10 has two co-axial cams (not shown) engaged by the cams 26, 27 on the rotary collar provided with operating handles 29, 30. When the collar 25 is rotated the jaw 10 is moved to grip the rope a. When the arm 15 is rotated in either direction, as by a stop on the track, the cam 14 releases the jaw 9 and the rope is released. The jaws are fitted with steel liners 11, 12. In order to prevent the rope, when released, from running on the bolt 6 a tubular liner 32 is mounted on the bolt in recesses in the jaws, and/or one or each jaw is provided with lugs 31 which bridge the gap between the jaws at a level slightly above the bolt.
Patent GB-1028930-A (GB)
Title: Addition compounds of formic acid
Inventor: WAGNER KUNO
IPC: C01B32/40
Filed: 1965-03-04
Abstract: Carbon monoxide is obtained by decomposing at 130-200 DEG  C. the addition products obtainable from 1 mol. of a tertiary amine and 2-8 mols. of formic acid (see Division C2).ALSO:The invention relates to addition products of formic acid and tertiary organic bases, the products having the formula <FORM:1028930/C2/1> in which n is 2-8 and each R denotes an optionally substituted aliphatic, aromatic, cycloaliphatic or heterocyclic radical, two or three of which may be combined with the nitrogen atom to form a ring.  The specified tertiary amines include trimethylamine, diethylpropylamine, dimethylstarylamine, permethylated ethylene diamine, dimethylcyclohexylamine, dimethylbenzylamine, pyridine, quinoline, N-methylmorpholine and N,N1-dimethylpiperazine, but others are specified also.  In one example, trimethylamine and an excess of formic acid are mixed at 20-40 DEG  C. and the mixture is distilled under reduced pressure whereby, after distillation of water and excess of formic acid, an addition product of 1 mol. of trimethylamine and 3 mols. of formic acid distils over.  Other methods of procedure are also indicated, including methods in which the amine or the acid is produced in situ.  Compounds of the formula (CH3)3N.(HCOOH)3, (C2H5)3N.(HCOOH)3, (C2H5) (CH3)2N.(HCOOH)3 and (C2H5)2(CH3)N.(HCOOH)3 are specifically claimed.
Patent GB-489482-A (GB)
Title: Improvements in or relating to fireproof shutters
IPC: A62C2/16
Filed: 1938-03-25
Abstract: 489,482. Preventing fires. POLLARD & CO., Ltd., E., and POLLARD, H. E. March 25, 1938, No. 9266. Addition to 425,457. [Class 47 (ii)] The closing mechanism for a fireproof shutter described in the parent Specification is modified in that the weight A is supported by a single rod T which, at its lower end, is grooved to be supported directly by a fusible link D. Rods C are provided for engaging the bottom bar of the shutter, and adjustable stops S for engaging the base of the casing L to limit the travel of the weight.