baber/WOPTO huggingface dataset:
Patent GB-332613-A (GB)
Title: A balanced arm for carrying an electric pick-up for gramophones and the like
IPC: G11B3/20
Filed: 1929-04-25
Abstract: 332,613. Glasscoe, M., Daines, G. M., (trading as Glasscoe & Co., R. H.), and Glasscoe, F. J. April 25, 1929. Electric pick-ups, supporting.-An arm d carrying an electric pick-up at one end is pivoted at the other end on a horizontal pivot c<3> in a casing c and has a lug d<1> on which a spring f bears, the amount of compression of the spring to vary the pressure of the needle on the record being adjusted by a screwed plug g. The casing c is pivoted about a vertical axis b<2> in a standard b secured to the motor board. The free end of the arm d is slotted horizontally and provided with a recess d<4> in which a tongue e<3> on the pick-up carrier e engages, the carrier e being secured to the arm d by a bolt h passing through a vertical slot d<3> in the arm. The pick-up may thus be adjusted longitudinally and angularly with respect to the arm d. The under surface of the arm d may have a longitudinal recess to accommodate the pick-up leads.
Patent GB-1209382-A (GB)
Title: Making foundry cores
Inventor: TAYLOR DOUGLAS ALBERT
IPC: B22C9/10
Filed: 1968-03-16
Abstract: 1,209,382. Making cores. BRITISH CAST IRON RESEARCH ASSOCIATION. 18 March, 1969 [16 March, 1968], No. 12867/68. Heading B3F. In order to form a venting passage in a sand core, part of the core, with a groove 14, is formed, e.g. in a core box by a hot or coldblowing process, and then a tube or channel member or a bar 15 which leaves a passage between itself and the bottom of the groove is placed in the groove and the remainder of the core is then formed on the groove face. For forming the core-half 13, the core-box half 10 is closed by a plate (11) bearing a rib (12) to produce the groove 14 which need not be straight. The tube or channel insert has small openings along its length and like the bar insert 15 may be of plastics material, to be destroyed by the heat of the cast metal. If the shapes of the core and insert permit the removal of the latter after casting, it may be of metal.
Patent GB-1125694-A (GB)
Title: Tetrahydrophthalamic compounds and use thereof
IPC: A01N37/30
Filed: 1967-03-20
Abstract: 1,125,694. N-Aryltetrahydrophthalamic acids and their esters, salts and imides. W. R. GRACE & CO. 20 March, 1967 [1 April; 1966], No 12886/67. Heading C2C. [Also in Division A5] The invention comprises compounds of formula wherein R is H or C 1-7  alkyl, n is 1-5 and X is halogen, C 1-7  alkyl (possibly halogenated) or sulphamoyl; imides. of the acids (R = H). and salts of these acids with ammonium, alkylammonium, alkali metal or alkaline earth metal cations.
Patent GB-131137-A (GB)
Title: Improvements in Apparatus for Cleaning the Tubes of Water-tube Boilers.
Inventor: PARRY CHARLES PERCY
IPC: F28G3/16
Filed: 1918-08-13
Abstract: 131,137. Parry, C. P. Aug. 13, 1918. Cleaning, fluid pressure processes for. - Apparatus for cleaning boiler tubes of the kind described in Specification 12829/15 is modified so as to clean the exterior of tubes of inclined or approximately vertical stacks of boilers of the Yarrow, Babcock and Wilcox, or Woodeson types. The tubes in each case are cleaned by steam directed on to the tubes by a blower constructed as shown in Fig. 7, fitted with a nozzle as shown therein, or with the nozzle shown in Figs. 10 and 11. The former nozzle produces a narrow spray 13 of a large angular displacement, as indicated in Fig. 1 for cleaning the front stack 1 of the boilers of a Woodeson boiler, two such sprays being employed, each of which covers the whole length of the stack 1, and by rotation of the nozzles about an axis 14-14 the whole width of the stack is covered. The remaining stacks 2, 3 of the boiler are cleansed by pairs of jets 17, produced by nozzles as 29, Figs. 10 and 11, which produce slightly waisted beams each covering half the width of the stacks 2, 3. By angling these nozzles about their axes the beams have rudder-like movements and sweep over the whole of the tubes in the stacks 2, 3. For cleansing the stacks 1<a>, 1<b>, 1<c>, Fig. 4, of a Babcock and Wilcox boiler, three nozzles as shown in Figs. 10 and 11 are employed each covering the whole width of the stack, and these are angled to cover the length. For a three-drum Yarrow boiler, two nozzles are employed, each covering half the width of the two stacks connecting the upper steam drum with the two lower water drums, and these are oscillated through nearly 180 degrees to cover the whole lengths of the stacks. Each nozzle is attached to a hollow sliding piston as 25 formed with an expansion nozzle 30 of the De Laval type, and balanced by a piston 32 moving in a cylinder 33 in the steam chest 22 fitted with a steam supply pipe 11 and with a drain pipe 12. Steam passes through ports 31 to the expansion nozzle 30 when a valve 35<b> operated by a handle 37 is opened. The nozzle may be advanced into working position and rotated through the desired angle, which may be limited by a feather which engages stops in the limiting positions, by operating a handle 34 connected to the stem 32<a> of the balanced pistons. A catch may hold this stem in its retracted position in a protected casing 20 arranged in the wall of the boiler setting.
Patent GB-385834-A (GB)
Title: Improvements in fuses for shells
IPC: C06C7/00
Filed: 1932-05-06
Abstract: 385,834. Fuze compositions. HERCULES POWDER CO., 900, Market Street, Wilmington, Delaware, U.S.A. May 6, 1932, No. 13123. Addition to 384,776. [Class 9 (ii).] Fuze compositions containing ingredients of the kind claimed in the parent Specification for use in the time rings of ventless projectile fuzes are now made with 50-98 per cent of red lead, and 2-50 per cent of sulphur, selenium, or tellurium, to which may be added 1-30 per cent of an inert material such as litharge.
Patent GB-1381809-A (GB)
Title: Methods of forming an epitaxial layer upon a substrate
IPC: H01L21/203
Filed: 1972-03-21
Abstract: 1381809 Vapour deposition on semi-conductors WESTERN ELECTRIC CO Inc 21 March 1972 [25 March 1971] 13161/72 Heading C1A [Also in Divisions C7 and H1] An epitaxial layer of composition A x B 1-x C, where x is 0 to 1, A is a first Group IIIa element, B is a second Group IIIa element and C is a Group Va element is deposited on a semiconductor substrate of, e.g. GaAs by heating the substrate and disecting a molecular beam of the composition containing a Ge dopant in the semi-conductor substrate. The temperature of the surface is such, e.g. 450‹ to 650‹ C. that at least one Group III(a) Group V(a) elements evaporate from the surface at equal rate and the ratio of Group V(a) to Group III(a) element and the temperature are such that either an epitaxial layer stabilized with respect to the Group V(a) element forming an n-type dopant or an epitaxial layer stabilized with respect to at least one Group III(a) element forming a P- type dopant are formed. The Group III(a) elements may be B, Al, Ga, In, Tl, and the Group Va element N, P, As, Sb, Bi. Multi-layered semi-conductor devices having alternate P- and N-type layers may be formed. The molecular beams are provided by cells 13a, 13b, 13c, within a chamber having a liquid nitrogen cooling shroud 22. The beams pass through a collimating aperture 24 and past a movable shutter 14 to the substrate 28 held on a heated, molybdenum support 17.
Patent GB-917863-A (GB)
Title: Improvements in well swabs
IPC: E21B37/10
Filed: 1962-05-19
Abstract: 917,863. Wells. BORG-WARNER CORPORATION. May 19, 1959 [June 18, 1958], No. 13392/62. Divided out of 917,861. Class 85. [Also in Groups XXVI and XXVIII] A well swab comprises a tubular member 113 mounted on a mandrel M, and rubber discs D spaced longitudinally of the member, the discs having a peripheral section of a diameter slightly less than that of the well conduit T and an annular intermediate section 115b (Fig. 4) of greater resilience than that of the peripheral section. Fig. 4 shows a disc during running in of the swab, Fig. 6 shows the disc during retrieval of the swab and the lifting of the well fluid above the swab, and Fig. 7 shows the disc when the swab is being retrieved but the volume of well fluid above the swab is too great to be lifted. Integral discs are moulded on a member to form a swab rubber S, and two rubbers are mounted on the mandrel. During retrieval of the swab a rubber part 119 of the lower rubber engages the swab nose 106 to prevent well fluid passing down through channels 112 in the mandrel.
Patent GB-134897-A (GB)
IPC: B27H1/00
Abstract: 134,897. Peel, A. L., and Lawley, A. Nov. 9, 1918 Boxes made from special blanks; lined boxes.- A wood ring, band, frame, &c., such as might be used for a rim or body of a jewel case, a rim for a tray, or a frame for a photograph or mirror, is made from a straight length of wood by transversely grooving it where bending is desired, the grooves being so deep as almost to sever the wood in order to obviate any necessity for steaming the wood at the bend. The opposed faces d, e, Fig. 4, of the grooves are arranged to abut or approximately abut when the wood is bent up, and glue is applied to these faces to make the structure rigid. The groovings are always on that side of the wood which will be the inside of the bend. Instead of glue, a fixing-strip x, Fig. 6, may be glued inside the frame as a lining to retain the wood in its bent-up shape The bending-up of the wood may take place on a mandrel. Reference has been directed by the Comptroller to Specifications 4075/81 and 8438/86.
Patent GB-135316-A (GB)
IPC: B63C11/48
Abstract: 135,316. Neale, J. May 27, 1919. Caissons.-An apparatus for viewing the seabed comprises an observer's cabin b adapted to be located near the sea-bed and provided with means for illuminating the sea-bed and for observing the illuminated field, and a tube a, which may be supported by a tied and strutted framework g, connecting the cabin with a surface ship &c. and affording means of communication between the cabin and the ship. The tube includes an upper portion sliding in guides on the ship, and a lower portion flexibly connected thereto to allow of relative movement. A pivot h may be provided between the two portions, so that the lower portion may be hauled parallel to the bottom of the ship by means of ropes f operated from windlasses controlled from the cabin.
Patent GB-242896-A (GB)
Title: Improvements in adjusting the film relatively to the gate in kinematographic projecting apparatus
IPC: G03B21/46
Filed: 1925-05-25
Abstract: 242,896. Ernemann-Werke Akt.-Ges. March 31, 1925, [Convention date]. Kinematograph apparatus. - In means for adjusting the masking of the film, wherein the pin wheel 7 of a maltese cross mechanism is moved about the axis of the cross 6, the gear wheel 5 driving a gear wheel 2 on the spindle of the pin wheel has an additional movement imparted to it, during the adjustment, by a sun and planet gearing 3, 4, the pin wheel being thereby caused to maintain a fixed position relatively to the cross. The pin wheel is driven by the projector mechanism through a wheel 1, the planet wheel 3, and the wheels 4, 5, and 2, the wheels 4 and 5 being secured together. The spindle of the pin wheel is carried by a rotatable member 18 connected by a bolt 17 to a rotatable bush 16 having a toothed segment 13 rigidly connected to it. The position of the spindle of the pin wheel is adjusted to alter the masking by a hand-operated toothed segment 14 engaging the segment 13. The spindle of the planet wheel 3 is mounted in a rotatable member 10 having a toothed segment 11 engaging a toothed segment 12 secured to the same spindle 15 as the segment 14, and the rotation of the member 10, produced when the masking is adjusted, causes the wheel 3 to travel over the wheel 1 and carry the wheels 4, 5, with it.
Patent GB-787004-A (GB)
Title: An arrangement for mixing under varying pressure one liquid with another liquid in a definite ratio of quantity
IPC: B01F15/04
Filed: 1956-05-03
Abstract: 787,004. Mixing liquids in proportionate quantities. AKTIEBOLAGET SEPARATOR. May 3, 1956 [June 13, 1955], No. 13686/56. Class 86 Two liquids e.g. a fatty oil and a caustic alkali lye, are supplied to a mixer 3 through pipes 1, 2, respectively, fitted with throttling valves 5, 6 one at least of which, preferably the valve 5, is adjustable. A gear pump, &c., not shown, feeds a constant quantity of oil per unit of time through the pipe 1, independently of pressure variations in said pipe, whereas the lye is fed to the pipe 2 from a container 8 by a pump 10 and the pipe 2 has a return branch 7, with a differential pressure or like automatic valve 14, connected to the pipe 1 by a branch 13, leading back to the lye container. Pressure gauges 15, 16 are fitted on the pipe 1 on the two sides of the valve 5 and a gauge 17 on the return branch 7; moreover, the pipes 1, 2 are provided with quantity meters, not shown. The arrangement is such that, after adjustment of the valves 5, 6 to regulate the flows of oil and lye, a rise or fall in pressure in the pipe 1 transmitted to the membrane in the valve 14 will act to close or open, respectively the latter valve and maintain a constant ratio between the flows. The valve 6 may be replaced by one of a number of throttling discs having various sized openings.
Patent GB-828471-A (GB)
Title: Self-service store
Inventor: GRONDONA JOHN LOUIS
IPC: A47F10/04
Filed: 1957-04-30
Abstract: 828,471. Endless conveyers. GRONDONA STORE SYSTEMS Inc. April 30, 1957, No. 13700/57. Class 78 (1). [Also in Group XVIII] Endless conveyers 76, 122, used for conveying carts in a self-service store (see Group XVIII), are fed respectively by shoots 31, 42, 44, 46 and 41, 43, 45. Holding means 141 prevent a cart descending the shoot 44 while a further cart engages a hinged plate 158, causing closure of a switch 153 which energizes a solenoid 148, Fig. 2, and raises a flap 146 in the path of a cart 65. Similar holding means are provided in shoots 41, 42, 43 and 46.
Patent GB-611593-A (GB)
Title: Improvements in the manufacture of primary amines
IPC: C07C209/08
Filed: 1946-05-06
Abstract: Primary amines, substantially free from secondary and tertiary amines, are prepared by heating an organic compound containing one or more halogen atoms attached to carbon with ammonia in an aqueous medium containing at least 3 molecular proportions, for each replaceable halogen atom, of an ammonium halide, under a pressure sufficient to maintain the reactants in the liquid phase. Preferably, a chlorinated organic compound is heated with a moderate molecular excess of ammonia, e.g. 1.5-3 molecular proportions, in the presence of a large excess of ammonium chloride, e.g. 8, 10, 12 or 15 molecular proportions; correspondingly increased amounts being used when a di- or poly-halogenated compound is the starting material. The reaction is suitably carried out at temperatures above 100 DEG C., especially between 130 DEG  and 180 DEG  C., in water, though aqueous mixtures such as aqueous alcohol may be used.  In an example, butyl chloride, ammonia and ammonium chloride are heated in aqueous solution in an autoclave to give butylamine hydrochloride, from which the free base is obtained by treatment with sodium hydroxide. Methyl, ethyl n-propyl, isopropyl, isobutyl and n-butyl chlorides give the corresponding amines by similar treatment.  Ethylene dichloride and 1 : 6-dichlorohexane give the diamines.  The process is also applicable to the preparation of amines from other organic halides having reactive halogen atoms such as aralkyl halides and aryl halides in which the halogen atom is rendered active by the presence of other substituents, e.g. benzyl chloride and o- and p-chloronitrobenzene.  The Provisional Specification describes also the use of non-aqueous solvents, e.g. alcohol.
Patent GB-265123-A (GB)
Title: Electromagnetic sound reproducing systems
IPC: H04R3/14
Filed: 1926-05-31
Abstract: 265,123. Brandes Laboratories, Inc., (Assignees of Rowe, C. R.). Jan. 28, 1926, [Convention date]. Loud - speakers.- In order that the resonance of a loudspeaker may be distributed uniformly through the audiofrequency range, the last stage of a thermionic amplifier system comprises two or more valves whose output is supplied to separate telephone windings, each resonant to a different region of the range. The output of the last amplifier is applied to the valves 8, 9, the outputs of which are applied to separate pairs of windings 11, 11<a>, and 12, 12<a>. The two pairs of windings, which respond to different frequency ranges, may be mounted on opposite sides of a vibratory member 14 which is connected by a pin with a loud-speaker diaphragm, and are so wound that they aid one another's effects, while the steady component of the current in them polarizes the member 14. In a modification, the windings 11, 12 may be on one pole-piece of a telephone magnet and the windings 11<a>, 12a on another, both pole-pieces being on one side of the member 14. In a further modification, three valves like 8, 9 control three different loud-speaking instruments, each system being resonant to a. different frequency range.
Patent GB-1223743-A (GB)
Title: Hydropneumatic suspension
IPC: B60G17/04
Filed: 1968-03-22
Abstract: 1,223,743. Fluid springs. INDUSTRIAL DEVELOPMENT CO. ETABS. 22 March, 1968 [29 March, 1967], No. 13902/68. Heading F2S. A hydropneumatio suspension unit, consisting of a gas spring 4 acting through a flexible diaphragm 3 on a liquid-filled cylinder 1 containing a piston 6, has a flow path 21-22 by-passing the piston outside the cylinder. This flow path is controlled by a valve 20 which is such that when the pressure in the cylinder exceeds a predetermined value the valve element 16 moves to the left against a spring 17 to close flow line 21 and open line 22 to an exhaust line 23. Thus when the unit is used as shown in a vehicle suspension it has, when the vehicle is lightly loaded, a spring rate which is governed by the fact that the pressure on both faces of the piston is low but, these pressures being equal, the effective piston-area is that of the piston-rod; whereas when the vehicle is heavily loaded, the pressure is higher but acts on the upper side of the piston only so that the effective piston area is also higher. The composite spring characteristic (Fig. 3, not shown) may thus be such that the spring rate is substantially the same at high loads as at low.
Patent GB-593165-A (GB)
Title: Improvements in or relating to air or gas compressors
IPC: F04B27/00
Filed: 1945-06-04
Abstract: 593,165. Air compressors. BROOM & WADE, Ltd., and SMITH, C. B. June 4, 1945, No. 14031. [Class 8 (i)] A reciprocating compressor for air and gases of the type having a sleeve valve 17 controlling the admission of air to the cylinder 11 from a suction belt 12 and its delivery to a belt 28 and thence past a non-return valve such as a plate 34 to the outlet 33, is provided with a passage extending from the delivery belt 28 to atmosphere, or to the suction belt, the passage being controlled by an unloading valve 42. The delivery belt 28 is in the form of an annular space between the cylinder and an inwardly projecting part 24 of the cylinder head. This latter .has spaced passage ways 30 open to the cylinder but covered by the sleeve valve during the piston suction stroke. Normal delivery to the outlet 33 is via an annular space 31, a ring of ports 32 in an intermediate head plate 20 and the plate valve 34. A passage 40 in the plate 20 leads from the delivery belt to an unloading port 41 normally closed by the valve 42 controlled by a piston 44 subjected to reservoir pressure through an automatic unloader. The valve 42 when opened serves to by-pass delivery air to atmosphere or to the suction belt 12. In a modification a double cylinder sleeve valve compressor is provided with unloading valves in the cylinder blocks and is actuated by a single piston subject to unloading pressure from the reservoir. Specification 563,741 is referred to.
Patent GB-679470-A (GB)
Title: Driving motor, particularly for windscreen wipers
IPC: F01B19/02
Filed: 1948-05-26
Abstract: 679,470. Vacuum or compressed air engines; motor power plant. O'SHEI, W. E. July 13, 1949 [May 26, 1948], No. 14179/48. Classes 110(iii) and 122(iii) [Also in Group XXXV] In a driving motor, particularly for windscreen wipers and comprising two or more fluid pressure motor units, the said units are interconnected in series whereby the stroke of the driving motor corresponds to the sum of the strokes of the separate units In the drawing a suction motor comprises two motor units 1 and 2 each of which comprises a chamber 3 and a flexible diaphragm 4. The diaphragm of the unit 1 is connected by a shaft 6 to the chamber of the unit 2 which is mounted for movement in a guide 5. The chamber of the unit 1 and a shaft 7 attached to the diaphragm of the unit 2 are then connected between a fixed member 10 and a rod, rack, cable or like connection to the wiper mechanism. When suction is applied to both chambers by pipes 8 and 9 the stroke of the rod or like is the sum of the strokes of each of the separate units. In a modification the flexible diaphragms of two units may be interconnected in which case the drive is obtained from the two chambers or alternately the chambers may be secured together, in which case the wiper drive is obtained from the diaphragms. As a modification on the last mentioned embodiment a double unit may be produced by having a single chamber closed at each end by diaphragms, one of which is connected to the fixed point and the other to the rod or like. Electric solenoid motor units connected in series (see Group XXXV) may be used in lieu of suction motor units. A multi-unit driving motor may comprise a combination of fluid pressure and solenoid motor units. Two multi-unit driving motors may be provided and connected respectively to the opposite ends of a rack, cable, or like which is connected to drive one or more windscreen wiper arms as described, for example in Specification 679,469, [Group XXIII]. An additional motor unit may be added for use when parking the wiper blades. The parking unit may be a solenoid motor or fluid pressure motor.
Patent GB-363604-A (GB)
Title: Method and apparatus for the production of relatively minute metal foils known as bronze colours
IPC: B02C23/00
Filed: 1931-05-13
Abstract: 363,604. Ball or tube mills for producing metal foil. HARTSTOFFMETALL AKT.-GES., 39, Kaiser Wilhelm Strasse, C÷penick, Berlin. May 13, 1931, No. 14180. Convention date, May 16, 1930. [Class 59.] A method of producing "bronze colours" when subjecting metal particles to the hammering action of the balls in a ball mill consists in the employment of a number of balls sufficient to occupy, when evenly distributed in the stationary drum, a segmental portion of the drum having a radial height varying between two-fifths and five-sixths of the radius of the drum. In Fig. 1, the ordinates represent the yield in kilograms and the abscissa indicates the weight of steel balls employed in kilograms per metre of length of the drum. Normally the mill was worked under the conditions indicated by the first maximum A and now the mill is to be worked under the conditions indicated by the maximum B. In practice the mill contains balls to the height of two-thirds to five-sixths of the radius of the drum. The apparatus for carrying out the method consists of a drum 12 containing loose balls 15 into which metal particles are fed by a hopper 1 and conveyer 2. The flattened particles are blown out of the drum by a fan into an air separator 19 and thence into a cyclone 14, the dustfree air or inert gas being drawn out of the cyclone by the fan 6 through a pipe 22. The coarse particles separated out in the sifter 19 being returned to the mill through a rotary valve 23. Fat or oil for lubricating the foil is injected into the mill through a pipe 11.