baber/WOPTO huggingface dataset:
Patent GB-1241753-A (GB)
Title: Indole-acetaldehyes
Inventor: BRENNER GERALD STANLEY
IPC: C07D317/22
Filed: 1969-04-02
Abstract: 1,241,753. Indole-acetaldehydes. MERCK & CO. Inc. 2 April, 1969 [9 April, 1968], No. 17385/69. Heading C2C. [Also in Division A5] Indole-acetaldehydes of Formula (I) in which R 1  is a substituted or unsubstituted aroyl or heteroaroyl radical, R 2  is H or C 1 _ 5  alkyl and R 3  is alkyl, alkoxy, amino, alkylamino or dialkylamino, are prepared by reacting a compound of Formula (II) in which R 4  is H or R 1 , with a compound of Formula (III) in which each R 5  is alkylthio or aralkoxy, or one R 5  is cyano and the other is hydroxy or amino, or the R 5 S together represent oxo, hydroxyimino, N-acyloxyimino, semicarbazono, N-acyl hydrazono or the group of Formula (IV) in which M is oxygen or sulphur, R 6  is alkylene and n is 0, 1 or 2, to produce a compound of Formula (V) and, when the R 5 s do not form an oxo group, converting the condensed compound to the corresponding aldehyde, the conversion being effected, when each R 5  is alkylthio or the R 5 s together form the group of Formula (IV), by acid hydrolysis, when each R 5  is aralkoxy, by treatment with hydrogen in the presence of a hydrogenation catalyst, when the B 5 s taken together form hydroxyimino, N-acyloxyimino, semicarbazono or N-acyl hydrazono, by contact with a strong acid, when one R 5  is cyano and the other is hydroxy, by treatment with ferrous sulphate followed by an alkali metal hydroxide, with a tertiary amine or with a non-aqueous solvent, and when one R 5  is cyano and the other is amino, by treatment with formic acid or with ferrous sulphate, followed by an alkali metal hydroxide, and when R 4  is hydrogen, reacting a compound containing R 4  at any stage in the process with an acylating agent containing a substituted or unsubstituted aroyl or heteroaroyl group. Starting materials of Formula (III) are prepared (a) by reacting an appropriate haloalkanone in which the oxo group is protected by acetalization or ketalization, with an appropriate formaldehyde open or cyclic acetal or thioacetal and then hydrolysing the product to regenerate the oxo group, or (b) by reacting the aldehyde R 2 CHO with the desired acetal or thioacetal form of acrolein, or (c) by a transacetalization process, or (d) by reacting the aldehyde R 2 COCH 2 CH 2 CHO with hydroxylamine, semicarbazide, hydrogen cyanide or ammonium cyanide.
Patent GB-222574-A (GB)
Title: Improvements in printing presses
IPC: B41F13/02
Filed: 1923-07-04
Abstract: 222,574. Kohler, G. A. E. July 4, 1923. Rotary machines.-In a printing-press of the kind comprising a frame, printing-cylinders mounted thereon, a paper-holding device located above the cylinders, and a folding-device located below the frame, a paper-roll carriage 11 is mounted on bearings 9 on the frame 1 and a belt 12 is provided adapted successively to engage the rolls 10 to feed the web to the cylinders. Four printing units are shown arranged side by side. and each unit comprises blanket cylinders 4, 5 and plate cylinders 2, 3 of the same size as the blanket cylinders, the latter being arranged between and above the plate cylinders. Rails 7 are arranged between the frames 1 and bearings 9 to increase the stability of the carriers 11. The webs pass downwardly from the printing-cylinders to two sets of collecting and folding devices 15, 16.
Patent GB-220425-A (GB)
Title: Improvements relating to fluid pressure braking apparatus for automobile vehicles and the like
IPC: B60T15/04
Filed: 1923-07-05
Abstract: 220,425. Barty, T., and Westinghouse Brake & Saxby Signal Co., Ltd. July 5, 1923. Fluid-pressure.-Means for controlling straight air pressure brakes on automobile and similar vehicles comprise a driver's valve of simple construction and a pressure-limiting device on the brake cylinder supply pipe to limit the maximum brake pressure during emergency applications of the brakes. The brake valve comprises a handle 1 mounted on the stem 2 of a rotary member 3, which is connected, by interengaging tapered projections 21 - - 24 and by a locating-pin 8, to a rotary valve 5 having a through port 14 and a cavity 15. The valve seat 7 is provided with a port 11 leading to the brake cylinder supply pipe 10, and a port 12 leading to atmosphere, whilst a pipe 9 connects the source of compressed air to the space above the valve 5. By moving the ports 14, 11 into register, the brakes are applied, and by connecting the ports 11, 12 by means of the cavity 15, the brakes are released. Graduated application and release is permitted by providing the port 14 and cavity 15 with narrow grooves 14a, 15a, and the valve casing is provided with steps or projections to indicate the position of the handle 1. The pressure-limiting device may comprise a reducing-valve of usual construction, or a ball valve 16, Fig. 5, attached to the brake cylinder supply pipe at 20, which is controlled by a spring 18 adjusted by a cap 21<a>. When the maximum pressure is reached, the ball valve is raised, and the escaping air gives an audible signal to the driver, or it may be arranged to actuate a pressure indicator.
Patent GB-1416806-A (GB)
Title: Steerable undercarriages suitable for aircraft
IPC: B64C25/50
Filed: 1973-04-11
Abstract: 1416806 Steering aircraft ground wheels DOWTY ROTOL Ltd 4 April 1974 [11 April 1973] 17494/73 Heading B7H In a steerable nosewheel undercarriage including a telescopic shock absorber 11 formed by an upper leg member 12 for attachment to an aircraft and a lower leg member 14 carrying a pair of wheels W, a cuff member 33 rotatably mounted on the upper leg member and coupled by torque links 31, 28 to the lower leg member is turned to steer the wheels W by rack-andpinion steering mechanism in which the pinion teeth run out of mesh with the rack outside a predetermined range of turning movement so that turning of the wheels through a greater angle is allowed when the aircraft is towed. The steering mechanism comprises a pinion shaft 35 connected by splines to the cuff member 33 and formed with pinion teeth 38 extending only part-way around the shaft and engaging the teeth 39 of a rack 40 upon which act pistons 41, 42 slidable in hydraulic cylinders 45, 46 fitted to the upper leg member 12. A cam 55 and feed-back roller 56 produce a follow up effect on a valve controlling supply of fluid to the cylinders 45, 56, and stop members 57, 58 determine the extremes of turning movement. A constant-diameter rack restraining ring 59 engages the end teeth 61, 62 of the rack to ensure that the rack teeth are held clear of the pinion after disengagement and that the teeth re-engage smoothly. A shimmy damper 63 comprises annular friction members 73, 74, 75 interposed between friction plates 69, 70 and 70, 72 which are splined to the cuff member 33 and to a housing 65 on the upper leg member 12 respectively and are loaded by disc springs 76. The lower leg member 14 is provided with a piston 16 slidable in the upper leg member 12 and a damping valve 19 which restricts flow between a liquid chamber 20 formed in the upper leg member 12 and a liquid chamber 21 formed in the lower leg member 14 and separated by a floating piston 22 from a pressurized nitrogen chamber 23.
Patent GB-1162759-A (GB)
Title: Monolithic Integrated Circuit
Inventor: PHILLIPS CURTIS DODSON
IPC: H01L23/522
Filed: 1967-04-17
Abstract: 1,162,759. Printed circuits; integrated circuit eccentrics. MOTOROLA Inc. 17 April, 1967 [9 May, 1966], No. 17551/67. Headings H1K and H1R. A monolithic, integrated circuit assembly comprises a semi-conductor die 19 (Figs. 3 and 4) with deposited circuit patterns on one surface thereof interconnected with semi-conductor regions; for instance base 18, emitter 56, and collector 83 of a transistor 21 are connected to a first conductive layer 23. The semi-conductor die is first coated on one surface with an insulating layer 79 formed of an oxide of the semiconductor material (e.g. SiO 2 ) to passivate all junctions terminating at said surface. The layer 79 is masked and etched, by phototechniques, to expose contact areas of said regions. The conductor layers may be of aluminum, aluminium - nickel, aluminiumsilicon, aluminum - molybdenum or molybdenum-gold formed by evaporative plating or electro-plating and converted into circuit patterns by photo-etching techniques using phosphoric, acetic or nitric acid solution. Preferably the layers are formed by plating first with aluminium and then nickel. The first conductive layer 23 is formed on the layer 79 and conductive layers 23, 27, 29 have insulating films 84, 86 sandwiched between them and insulating film 91 as the outer layer of the sandwich. Interconnections between conductive layers e.g. at transition areas 67, 68, 73 (Fig. 3) are formed by etching the insulation to expose areas of the underlying conductor and plating the upper conductor layer thereover. Connecting pads 25 are also formed this way. Capacitors, e.g. C33 (Fig. 3) and (Fig. 2, not shown), are formed from parts of layers 23 and 27 as electrodes with the insulating film 84 as dielectric. Resistors, e.g. 53, are deposited by vacuum plating with an appropriate resistor metal. The .insulating layers 84, 86, 91 are preferably vapour plated glasses such as boroalumina silica deposited at atmospheric pressure and temperatures below 450 C. There may be 200 circuits each including 40 gates on 1. square inch of chip.
Patent GB-1221966-A (GB)
Title: Internal combustion engine
IPC: F16H37/00
Filed: 1968-04-11
Abstract: 1,221,966. Driving gear for accessories; valve gear. CONTINENTAL MOTORS CORP. April 11, 1968 [June 21, 1967], No.17574/68. Heading F1B. An accessory drive-shaft 42 is driven from the crank-shaft through gears 54, 56 and carries at each end an accessory 64, 70, mounted on the crank-case. Shaft 42 drives the oil pump 64 and a vacuum pump 70, a fuel pump 72 being mounted on and driven from the pump 70. Shafts 44, 46, parallel to and driven from the shaft 42 by gears 48. . .52 each drive accessories arranged at opposite ends thereof, namely magnetos 62, 68, governor 60 and hydraulic pump 66. The engine is a horizontally opposed four cylinder engine with the accessories arranged-at the rear end of the crank-shaft and a starter motor at the front. The crank-case is formed in two halves 28, 30, joined along a vertical dividing plane. The camshaft 39 is driven from the shaft 44.
Patent GB-1039207-A (GB)
Title: An improved electric lamp socket for printed circuit boards or panels
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R33/22
Filed: 1964-04-29
Abstract: 1,039,207. Lampholders. PRESSAC Ltd. March 19, 1965 [April 29, 1964], No. 17719/64. Heading H2E. A lamp socket for printed circuit boards &c. has a pair of integral locking lugs 4 having curved lower surfaces, a circumferential flange 5 having radial notches below the lugs 4 and having cam portions 5a on its upper surface to engage the surface of the board not bearing the circuit, and contact strips 7, 8 having curved portions 7b, 8b extending over the lugs, whose lower surfaces engage the circuit carried by the board.
Patent GB-523885-A (GB)
Title: Improvements in or relating to polyphase choke coils
IPC: H01F29/14
Filed: 1939-06-17
Abstract: 523,885. Inductances. PHILIPS LAMPS, Ltd. June 17, 1939, No. 17767. Convention date, June 20, 1938. [Class 38 (ii)] In a polyphase choke regulated by D.C. saturating windings, the windings are arranged on a core having m limbs carrying the choke windings and m-1 limbs carrying the saturating windings, m being the number of phases. Thus for a 3-phase choke, the A.C. windings u, v, w are arranged on the outer and middle limbs of a five limbed core, the saturating windings P being arranged on the remaining limbs and connected in opposition as regards A.C. voltages induced therein. Odd harmonic components which are not balanced out may be suppressed by short-circuited windings K. A pair of such arrangements with their windings connected in series as shown in Fig. 5 may be used to equalize the effect of the D.C. saturation on both half waves of the A.C. Alternatively, the A.C. windings may be zig - zag connected as shown in Fig. 8.
Patent GB-802230-A (GB)
Title: Improvements in or relating to transmitters linearised by negative feed-back
IPC: H03C1/06
Filed: 1957-06-04
Abstract: 802,230. Phase measurement. SIEMENS & HALSKE A.G. June 4, 1957 [July 19, 1956], No. 17795/57. Class 37. [Also in Group XL (c)] An amplifier system including a frequency changer has overall negative feed-back and means for indicating whether the feed-back is of correct phase. As shown, the amplifier system comprises a first amplifier 1, a frequency changer 2 and a further amplifier 4, part of the output of which is applied to a frequency changer 7 which converts the signal back to the input frequency and applies it to the amplifier 1 as negative feed-back. A phase changer 8 between the local oscillator and one of the frequency changers is adjustable so that the feedback voltage may be set to the correct phase at the operation frequency. To indicate whether the setting is correct two test oscillations #1, #2 are supplied to the amplifier system, the frequencies of the oscillations being symmetrically disposed above and below the mid-band frequency of the oscillator at frequencies where the feed-back becomes positive. The output of the amplifying system is applied to circuits 13, 14 tuned respectively to the two frequencies and the circuit is so arranged that when the feedback at the operating frequency is strictly in antiphase with the input the rectified outputs of the two circuits are equal. Any deviation from the correct adjustment is shown on indicator 15. It is suggested that the signal produced at the indicator could be used to automatically correct the phase adjuster.
Patent GB-596577-A (GB)
Title: Improvements in or relating to weight indicating lifting jacks
IPC: G01G19/08
Filed: 1944-09-18
Abstract: 596,577. Weighing-apparatus. GRIME, E. P. Sept. 18, 1944, No. 17796. Convention date, Sept. 11, 1943. [Class 143] [Also in Group XXX] A weight indicating lifting jack includes a cap cylinder supported on a plunger within a cylindrical casing, a cap plunger adapted to extend above the cap cylinder casing, a fluid pressure system with a flexible connection maintaining connection to the cap cylinder in any position the cylinder may assume, a weight indicator, and a cylinder connected with the fluid pressure system so that it is subjected to the same pressure as that in the cap cylinder and having a plunger thrusting against the weight indicator. The cap cylinder 20, Fig. 1, is movable in a bore 19 formed in a block 12 which is pivotally mounted on a pin 13 extending transversely between a pair of plates 7. These plates are pivotally mounted on a rod 8 which is supported by plates 9 upstanding from the side bars 3 of the base 1. The plates 7 are connected to the plunger 6 of a cylinder 4 which is rotatably mounted on a rod 5 extending between the bars 3. A link 15 connects one of the plates 9 to an arm 14 projecting from the block 12 and ensures that the block remains vertical during the movement of the plates 7 between the vertical and the horizontal positions. An aperture 16 in the lower part of the block receives the upper end of the plunger 11 of a cylinder 10 which is secured to a platform welded to the plates 7. A twin elbow connection 25, Fig. 21, in communication with the space between the parts 20, 21, is connected by a hose 28 to a pump 29 and by a hose 33 to a weight indicating device 34. The hose 33 supplies fluid to the space above the plunger 40, Fig 4, of a miniature cylinder 39 disposed adjacent to the actuating arm 38 of a pivoted scale beam 36. A flat finger 41 attached to the plunger projects through a slot 42 in the cylinder and engages a notch 43 in the arm 38. When the plates 7 are in the horizontal position, !the plunger 11 is within the cylinder 10 and is not in contact with the block 12. If fluid is pumped from the reservoir 18 into the cylinder 4 by actuating the pump 17, the plates 7 will be turned into the vertical position. During this movement the load 22 rests on the plunger 21 which is at the bottom of the cylinder 20, Fig. 3. When the plates are vertical, fluid under pressure is admitted at 23 to the cylinder 10 to raise the plunger 11 into engagement with the cylinder 20. The pump 29 is then actuated to supply fluid under pressure to the space 24 whereupon the load is indicated by the device 34. The cylinder 20 is interchangeable with jacks having cylinders of larger or smaller diameter than the cylinder 10.
Patent GB-237098-A (GB)
Title: Improvements in window regulators
IPC: E05F11/38
Filed: 1924-07-25
Abstract: 237,098. Marks, E. C. R., (Studebaker Corporation). July 25, 1924. Vehicle-window opening and closing apparatus. -The vehicle window 3 is raised and lowered by a lever 5 operated by a handle 22, bevel-gearing 23, 25, worm 9, and worm-wheel quadrant 6 attached to the lever. The window is preferably balanced by a spring 26 acting on the lever. The wormspindle is mounted on a ball-bearing 13, adjustably supported by a screw 14, and has a ballthrust bearing 17 engaging the shaft 16. The spindle bearing consists of two parts screwed together and clamping the plate 8 and the upholstering between them. A flange 24 prevents longitudinal movement of the spindle 16. The quadrant 6 is guided between ball-bearings 33, 35 on a block 32 secured to the plate 8 and on a member 34 secured to the plate and extending round ihe worm. In the raised position, a turned-over edge 28 of the bottom channel of the window compresses a rubber strip 30 against the folded edge of the door sheathing 29. To prevent separation of the lever roller 4 and the window, a bent retaining piece 31 is secured to the bottom channel of the window. The angle of the worm is less than the angle of friction between the worm and wheel so that the device is self-locking.
Patent GB-826753-A (GB)
Title: Improvements in or relating to bearings for torsion bar suspensions
IPC: F16F1/16
Filed: 1956-06-08
Abstract: 826,753. Mounting torsion bars. AUTO UNION G.m.b.H. June 8, 1956 [June 10, 1955]. No 17817/56. Class 108(3) The invention relates to a roadvehicle torsion bar suspension in which the torsion bar 6 is seated at or near its load end in a precompressed resilient bushing 2 seated in turn in a sprung part of the suspension. The bush 2 comprises an inner metal liner 5 which is bonded to the resilient material 2 and is split, the relative dimensions of the liner 5 and the torsion bar 6 being such that insertion of the bar 6 into the liner 5 causes the bush to be compressed outwardly. The torsion bar 6 is of laminated construction. The bush 2 is seated in a sleeve 10 which is enclosed by a U-shaped band 9 itself spot welded to a U-shaped square-sided chassis-frame member 8. The sleeve 10 is retained by a member 14 having an arcuate shaped portion 13 and a tubular portion 15 for a retaining bolt 16. The bush 2 may be of elliptical shape (Fig. 3, not shown), before assembly, the major axis of the ellipse passing through the points 4, 4, at which the liner 5 is split. In a similar construction (Figs. 1 and 2, not shown), the bush 2 is retained directly (without the interposition of a liner 10) within a tubular chassis-frame member.
Patent GB-624347-A (GB)
Title: Improved method of mining coal and coal-mining machine
IPC: E21C27/32
Filed: 1947-07-07
Abstract: 624,347. Coal-mining machines. MAVOR & COULSON, Ltd. (Vogel, W.). July 7, 1947, No. 17825. [Class 68 (i)] A double-ended coal-mining machine comprises two wedge-shaped cutter heads 5, interconnected by bars 5A, 5B on which slides a block and having formed therein a chamber 8 for a ram fixed to one of the heads 5. Pivotally secured on the top of the block 6 are two arms 18, 19, each having a wedge cutter 16, 17 at the outer end, the height of which is regulated by jacks 23, 24. The cutters or the block 6 may be anchored by jacks 9, 10 or 13 respectively. In use, the heads 5 are anchored by expanding the jacks 9, 10 against the roof B and the body 6 is urged forward along the guides 5A, and 5B, as fluid under pressure is admitted to the chamber 8 so that the uppermost cutter, in the direction of movement, shears out a portion of the seam. When the body 6 has been fully advanced it is anchored by expanding the jack 13 and withdrawing jacks 9, 10, the fluid being admitted on the other side of the piston in the chamber 8, so causing the heads 5 to advance, the leading head shearing out the lower portion of the seam and thus completing the cycle of operations. Only a pair of cutters at one end of the assembly need be used. When used for a heavy cut each cutter may comprise a number of cutting tools working at varying depths in the face. The Provisional Specification describes the use of two jacks to anchor each component.
Patent GB-771455-A (GB)
Title: Power-driven tractors
Inventor: BURTON LESLIE JAMES
IPC: B62D49/00
Filed: 1955-06-16
Abstract: 771,455. Walk-type tractors. CLIFFORD AERO & AUTO, Ltd. June 16, 1955 [June 18, 1954], No. 17910/54. Classes 79(1) and 79(2). In a two-wheeled tractor having a casing 3 with end portions 6, each having a bore 6a to receive a splined end of a power driven shaft 4, an implement housing 7 is secured to either portion 6 and has a tubular part 7a which fits within the bore 6a and houses an internally splined sleeve 9 interconnecting a shaft 8 within the housing 7 and the shaft 4. As shown the shaft 4, which is driven through a clutch (not shown) from an engine (not shown) mounted on the casing 3, drives through worm gearing and one or other of a pair of gear trains the ground wheel axle 5. The bores 6a may be closed by plates 12 bolted to the casing 3. According to the Provisional Specification the parts 6, 7 are interconnected by a clamping collar, and relative rotation therebetween is prevented by keys and keyways.
Patent GB-458761-A (GB)
Title: Process for the production of printing colours
IPC: C09B63/00
Filed: 1935-06-21
Abstract: A pigment consisting of aluminium hydroxide or a colour lake precipitated on a foundation of aluminium hydroxide, for use in the production of printing colours comprising fluid binding media containing oil binding agents, with or without a resin, is characterized in that the individual particles of the pigment or lake are surrounded by a protective coating of an aluminium salt which is insoluble in water and in the said binding media.  The pigments or colour lakes are suspended in water, with a small quantity of, for example, an acid or acid salt which causes precipitation on the surface of the aluminium hydroxide particles of an aluminium salt which is insoluble in water and oil. Examples describe the treatment of a colour lake with oxalic acid, acid sodium pyrophosphate, primary ammonium phosphate, or orthophosphoric acid, and also the treatment of aluminium hydroxide with aluminium sulphate and tertiary sodium phosphate or with orthophosphoric acid.  The laking of aluminium hydroxide after treatment is also referred to.  The Provisional Specification refers also to the treatment of other basic or amphoteric pigments such as lead oxide, red lead, zinc white and white lead, and describes the treatment of a colour lake having a foundation of aluminium hydroxide with calcium glycerophosphate.ALSO:A pigment consisting of aluminium hydroxide or a colour lake precipitated on a foundation of aluminium hydroxide, for use in the production of printing colours comprising fluid binding media containing oil-binding agents, with or without a resin, is characterized in that the individual particles of the pigment or lake are surrounded by a protective coating of an aluminium salt which is insoluble in water and in the said binding media.  The pigments or colour lakes are suspended in water, with a small quantity of, for example, an acid or acid salt which causes precipitation on the surface of the aluminium hydroxide particles of an aluminium salt which is insoluble in water and oil. Examples describe the treatment of aluminium hydroxide with orthophosphoric acid, and with aluminium sulphate and tertiary sodium phosphate.  The Provisional Specification refers to the treatment of other basic or amphoteric pigments such as lead oxide, red lead, zinc white and white lead.