baber/WOPTO huggingface dataset:
Patent GB-493954-A (GB)
Title: Apparatus for indicating or recording the combustion quality of gases
IPC: G01N25/46
Filed: 1937-04-23
Abstract: 493,954. Gas calorimeters. TOTTENHAM & DISTRICT GAS CO., and HAWES, F. O. April 23, 1937, No. 11657. [Class 97 (iii)] An apparatus for indicating and recording the combustion quality of gases comprises a burner of the Bunsen type, water cooled at or near its mouth, means whereby the air admitted to the port or ports. of the burner may be increased by varying and measured amounts, a movable chart driven from a source of power, a pen or indicator co-operating with the chart and operated by the means regulating the burner air supply which also is operated from the source of power, and means operable by the heat generated in the burner by oscillation of the flame for interrupting the drive to the air regulating means to allow the air port of the burner to be closed to its original size, and the pen or indicator to return to its original position after each cycle of operations. The Bunsen burner is provided with an air port 1a and a rotatable sleeve provided with an L-shaped port 2a, so that, as the sleeve is rotated by a chain 21, the supply of air increases first rapidly and then slowly. The chain 21 is driven, through a gear 15 mounted on a slidable sleeve 16, by a clockwork motor 12 which also rotates a recording drum 13. The mouth of the burner is cooled by a running- water jacket 5, and is provided with an air jacket 6 connected to a mercury-filled U-tube 8, the other end of which is sealed into an air container 10. A contact 9 is provided in one arm of the tube and an adjustable wire 11a, normally out of contact with the mercury, is provided in the other arm, so that, as the gas jet starts to oscillate and to heat the burner, the air in the jacket 6 expands and pushes the mercury over to make contact with the wire 11a to energize an electromagnet 20, which thereupon attracts the sleeve 16 and unclutches the gear 15 from the drive. The sleeve 2 is thereupon returned to its starting position, which is determined by a pin engaging in a notch, by the weight of a pen-carrying lever arm 25a, the other arm of the lever being coupled by a chain 22 to the sleeve 2. As the burner is cooled by the jacket 5 the mercury returns to its normal position and the magnet 20 releases the sleeve 16, the gear wheel 15 re-engages the drive and the cycle of operations starts again. The pen 25b thus records a series of maxima corresponding to the proportion of air at which oscillation of the flame starts. To prevent premature uncoupling of the drive a mercury switch 26, mounted on the arm 25a, is included in the circuit of the magnet.
Patent GB-216507-A (GB)
Title: Improved method and apparatus for grinding threaded members, such as taps and the like
IPC: B24B19/02
Filed: 1924-05-12
Abstract: 216,507. Hanson, B. M. W. May 21, 1923, [Convention date]. Diamond and like tools.-A tool for grinding the thread of a screw or tap has several cutting- edges or ribs of different sizes or shapes. The grinding-wheel 11 is rotatably mounted upon a base 10, and is adjustable by means of a screw 20. The grinding-wheel has thereon serrations or ribs 16 of different sizes, which engage alternate convolutions of the thread. The serrations are shaped by means of diamond points 35 - - 37, mounted on a slide 38 and movable across the faces of the serrations by screws 42. Specifications 239,858 and 239,859 are referred to.
Patent GB-274592-A (GB)
Title: Improvements in or relating to tinning pots
IPC: C23C2/00
Filed: 1926-05-06
Abstract: 274,592. Markey, J. J. May 6, 1926. Tinning.-A tinning pot is formed by bending a wrought iron plate into a substantially U-shaped form and welding end plates thereto, the back plate being higher than the front. The bottom wall 8 and side walls 9, 10 are formed by bending a plate into a substantially U-shape, the wall 10 being higher than the wall 9. The wall 9 is provided with a flange 12 and the wall 10 with lugs 14 which co-operate with the rollers usually used. The end plates 11 having flanges 13 are welded to the edges of the U-plate forming the body of the pot and are provided with apertures 5<1> for the passage of pipes 5 through which pass cooling liquid for the purpose of cooling the oil floating on the coating metal. Extending across the bottom of 'the pit and welded thereto is a raised portion 7, and welded to the walls 9, 10 and above the portion 7 so as to leave an opening 3 is a portion 4. The plate forming the bottom 8 and walls 9, 10 may be of tapered section so as to produce a heavier bottom 8 and an upwardly tapering back and front.
Patent GB-353450-A (GB)
Title: Improvements in or relating to motor vehicle axles
IPC: B60K17/16
Filed: 1930-04-15
Abstract: 353,450. Motor vehicle transmission gearing; axle casings. TIMKENDETROIT AXLE CO., 132, Clark Avenue, Detroit, Michigan, U.S.A. April 15, 1930, No. 11872. Convention date, Sept. 13, 1929. [Classes 79 (ii) and 79 (iv).] In transmission gearing to the differential driving axle of a motor vehicle, the propeller shaft 5 driving the differential casing 17 through bevel gearing 22, 21. is mounted in a cylindrical bearing carrier 6, forming therewith a removable unit which is axially adjustable in an annular nosing or extension 29 of the main section 3 of a two-part axle casing 2, 3, the axis of the propeller shaft passing through the differential gear and the propeller shaft end, beyond the driving pinion 22, being slidably mounted in a roller bearing carried by a bracket 37 extending from the inner wall of the same casing section 3. The carrier 6, provided internally with a rib 33 forming an annular abutment for tapered roller bearings 35, is secured to the casing by bolts 28 passing through a flange 27 on the carrier into a flange 30 on the noting, shims 32 being interposed to adjust the meshing of the bevel gears 22, 21. The bevel gear 21 is secured to an annular flange 20 on the differential casing 17, the latter being formed in two parts which, when secured together by bolts 17a, form bearings for the radial arms of a spider 19 carrying planetary pinions 18 in engagement with bevel gears 15 preferably formed integrally with the divided shaft ends 10. Extended hub portions 16 of the differential casing are mounted in roller bearings 9 in the main axle casing sections 2, 3 and form shouldered bearings for the bevel gears 15 and shaft ends. The sections 2, 3, which are divided in a plane transverse to the axle, are secured peripherally by bolts 43. A plate 24, held, by means of a stem 25, in the casing section 2 supports the bevel gear 21 against the thrust of the driving pinion 22.
Patent GB-1254533-A (GB)
Title: Power presses
Inventor: OWEN WILLIAM
IPC: F16D67/04
Filed: 1968-03-12
Abstract: 1,254,533. Clutch-brake combinations. WILKINS & MITCHELL Ltd. 27 Feb., 1969 [12 March, 1968], No. 11921/68. Headings F2C and F2L. In a power press wherein a main shaft 11 is clutched to a driving flywheel 15 or held by a brake 17 through which the main shaft may be inched by an auxiliary motor (89) and the clutch presser plate 24 is connected to the brake presser plate 65 by an axially slidable rod 34 which is biased by springs 50, 51 to engage the brake and disengage the clutch and is moved against the spring bias by pressure air supplied to a servo chamber 81 to engage the clutch and disengage the brake, pressure air supplied independently to a servo chamber 46 increases brake engaging pressure during inching. The clutch and brake presser plates 24, 65 are respectively splined to hubs 27, 59 keyed to the main shaft 11. The clutch presser plate 24 is connected to the rod 34 through a housing 22 whilst the brake presser plate 65 is connected to the rod 34 through a housing 68. The springs 50, 51 act between the housing 22 and main shaft 11 to bias the rod 34 right to engage the brake 17 and disengage the clutch. Pressure air supplied to the chamber 81 moves the rod 34 left against the bias of the springs 50, 51 to disengage the brake and engage the clutch. Pressure air supplied to the servo chamber 46 applies additional rightward loading to the housing 22 and rod 34 to increase the brake-engaging pressure.
Patent GB-1034094-A (GB)
Title: Self-lubricating article and means for its manufacture
IPC: F16C33/04
Filed: 1963-03-26
Abstract: 1,034,094. Bearings. POLYMER CORPORATION. March 26, 1963 [April 13, 1962], No. 11926/63. Heading F2A. [Also in Division H2] A self-lubricated article, such as a bearing or a brush for an electric motor, comprises a sintered metal and thermally degraded polytetrafluoroethylene contained in the interstices of the sintered metal. The thermally degraded PTFE is prepared by heating the resin to a temperature between 1000 and 1500 F. for a period up to one half-hour and allowing the resulting liquid to cool to room temperature. The degraded material is ground to a convenient particle size and reheated to a temperature between 600 and 800 F. to oxidize any free carbonaceous material and to volatilize any low boiling materials. As an alternative to cooling to room temperature, the degraded material may be cooled to a temperature of 600 to 800 F. which is maintained for an adequate time to obtain the same result. The degraded PTFE is milled until it will pass an 80-mesh screen and mixed with finely divided silver and cadmium oxide. After milling the mixture for about three hours and passing it through a 325- mesh screen, slugs of  inch diameter and length are pressed from it at a pressure of about 25 tons per square inch before sintering for two hours at 720 F. The PTFE constitutes 9À6% of the volume of the mixture and the silver and cadmium oxide 79À5 and 10À9% respectively.
Patent GB-871238-A (GB)
Title: Television apparatus
Inventor: MARSDEN BERNARD
IPC: H04N5/278
Filed: 1957-04-11
Abstract: 871,238. Television. ASSOCIATED TELEVISION Ltd. April 11, 1958 [April 11, 1957], No. 11957/57. Class 40(3) A television system includes means for producing a "cue" signal and for inserting it in a television signal waveforms so that it may be reproduced as a visible indication on a picture tube to which the waveform is supplied. The "cue" signal is derived from a train of pulses produced by a multivibrator 5 under the control of each pulse of a train of twelve pulses produced during each vertical scan by a gate 4 to which line and frame frequency pulses of variable width derived from the line and frame synchronizing pulses of the system via multi-vibrators 2, 3 and 9, 10 respectively are supplied. The output of multivibrator 5 is then modulated in a circuit 6 by a 0À5 Mc/s. signal to produce the "cue" signal which is supplied via an amplifier 13, rendered operative or inoperative at will by means of a switch 17, to a mixer circuit in which it is combined with the composite television signal. The "cue" signal is also combined with the composite synchronizing and blanking signals of the system in a mixer 15 and supplied to picture monitor tubes. The output of multivibrator 5 is also supplied via an isolating stage 12 and phase reversal stage 11 (the operation of both of which is controlled by the switch 17) as a blanking signal to the camera control circuits so that when it is desired to insert the "cue" signal in the composite signal (by operation of switch 17) the latter is blanked out in the position in which the "cue" signal appears. The "cue" signal, which is arranged to occur in the top right-hand corner of the picture, is primarily intended to be displayed on a monitor tube at one or more transmitting stations receiving a programme from a central studio to convey a warning that a break in the programme is about to occur so that each of them may prepare to transmit other individual programme material (e.g. advertisements). Alternatively, the presence of the "cue" signal may be arranged to effect automatic control of the new programme material e.g. by bringing into operation a telecine machine. Since the "cue" signal occurs at the top of the reproduced picture it is effectively concealed from ordinary viewers by the normal tube mark provided on overscanned domestic receivers. Reference has been directed by the Comptroller to Specification 633,424.
Patent GB-775657-A (GB)
Title: Improvements in or relating to net making machines
Inventor: BOYNTON THOMAS EDWARD
IPC: D04G1/02
Filed: 1953-04-30
Abstract: 775,657. Net-making. PORTER, SPIERS (LEICESTER), Ltd. April 5, 1954 [April 30, 1953], No. 11972/53. Class 74 (1). By suitable relative movement therebetween, guide nozzles 164 wrap top twines 48 each in a single or double loop, around a front pin 67 and a rear pin 79; top hooks 103 penetrate the loops to remove them from the rear pins and dispose them substantially vertically; bottom hooks 17 penetrate the loops, seize lengths 48d of the top twines, and draw them into bights 48a through the loops 48b and over stationary spool holders 15, so that the shuttle threads become engaged by the bights, and then release the bights 48a to be tightened by a main compensating bar or roller 150 and so pull bights of the spool threads 44 through the loops 48b. Appropriate movement of an auxiliary compensating bar or roller 151 then finally tensions the top twines and tightens the knots 49 so formed. The various movements are effected by cams on a main cam-shaft 16 and a second cam-shaft 18 driven therefrom. The guide nozzles are mounted on a bar 8 which can be shogged endwise, raised, lowered, advanced and retracted. The front pins 67 are carried on a bar 9 which can be shogged and also pivoted about its axis, to alter the altitude of the pins. The rear, hooked pins 79 are borne on a bar 10 which, may be shogged advanced and retired. The top hooks move along the path L, Y, L1, X, L2, L3, Fig. 26. The bottom hooks 17 are borne on a bar 12 suitably moved to impart the required rearward and then forward and downward movement. The bights 48a are stripped from the hooks 17 by a stripper 119, and recessed spool-holder anchor plate 118 are appropriately oscillated to allow the bights to pass by them. Lengths of spool twines, for mesh and knot formation, are drawn off by the edge 45a of a reciprocating bar 45. The top twines are drawn off under the control of a main compensating bar or roller 150 which pays out sufficient lengths to permit formation and manipulation of the bights 48a, an auxiliary compensating bar or roller 151 which finally tightens the knots, an intermittently rotatable net draw-off roller 152, alternately operating trappers 159, 155 and a draw-off bar 148. A saddle 193 slidable along a member 189 oscillated about a fulcrum 190 is linked, via a fixed boss 196 and linkwork, to a friction clutch acting as a ratchet to rock round the net draw-off roller 152, and via an adjustable boss 195 and other linkwork, to the bar 148. To vary mesh size, using the same thickness of twine, the saddle is slid towards or away from the fulcrum 190, and when the amount of yarn used in the knot is varied by reason of a difference in the thickness of the twine used, the boss 195 is adjusted in relation to the boss 196.
Patent GB-211761-A (GB)
Title: An improvement relating to the charging of electric accumulators or storage batteries
IPC: G01R31/36
Filed: 1923-05-03
Abstract: 211,761. Runbaken, J. H., and Torrance, W. May 3, 1923. Casings and supports for instruments; current meters. -An instrument for use in charging accumulators consists of an ammeter a, indicating both current strength and direction, having formed integrally with or attached to its casing a plug or equivalent supply connecting means c. Leads e are provided for connection to the accumulator to be charged, and a socket d for a lamp may also be provided.
Patent GB-915700-A (GB)
Title: Rocket with internal rod
IPC: F02K9/18
Filed: 1956-04-19
Abstract: 915,700. Propellant charges; propellant compositions. CAMP, A. T. April 19, 1956 [April 21, 1955], No. 12031/56. Drawings to Specification. Classes 9 (1) and 9 (2). A power source for a jet-actuated device is characterized by the introduction of a ballistic modifier externally into the flame area of the propellant as it burns, preferably by means of an incombustible rod or other holder to which the modifier is attached by means of a plastic binder. The ballistic modifier may be potassium sulphate, barium nitrate, titanium dioxide containing an oxidizing salt such as potassium perchlorate or nitrate and the modifier may be attached to the rod by a plastic composition comprising ethyl cellulose, dibutyl phthalate, butyl methacrylate, polyglycol dimethacrylate and benzoyl peroxide. Thus a supporting rod 10, having its end bent into the form of a ring for mounting in a groove within, the head closure of a rocket, is coated with a ballistic modifier composition 11, and mounted in a central hollow running through the propellant 12. The propellant may have a nitrocellulosenitroglycerin base including a compound of lead.
Patent GB-138524-A (GB)
Title: Improved valve gear applicable to internal combustion engines working on four-strokecycle and comprising four cylinders
IPC: F01L5/02
Filed: 1919-05-14
Abstract: 138,524. Lepersonne, O. May 14, 1919. Valves; valve-gear.-In a four-cylinder four-strokecycle engine, inlet and exhaust are controlled by concentric cylindrical slide valves arranged in a single valve chamber common to the. four cylinders. The valves are of the type in which the distribution for each cylinder is controlled by an outer valve member such as g and an inner valve member such as k; in order to simplify the valve-operating mechanism, the various inner and outer valve members having similar movements are connected together so that the whole of the valve members may be operated from two or from three half-speed eccentrics or cranks. To ensure the same timing in each cylinder, the valve-actuating mechanism is arranged so as to avoid variations due to obliquity of the connecting-rods of the gear. In the arrangement shown, there are three valves, (1) the valve g, i, h comprising the outer valve members for cylinders I, IV, (2) the valve k, j, l comprising the outer valve members for cylinders II, III and the inner members for cylinders I, IV, and (3) the valve mm. comprising the inner members for cylinders II, III. The three valves are worked from separate eccentrics or cranks p by linkages such as r, u, x, such that the movements of the valves corresponding to the upper and lower halves zvx and xyz of the valve crank-pin circle are similar. The inlet passages to the valve-chest are at b, c and the exhaust passages d, e, f. In a modification, the passages d, f are dispensed with and the valve m is extended in both directions, the exhaust from cylinders I, IV, as well as that from cylinders II, III, passing through the interior of the valve to the passage e. In these arrangements, each cylinder port a is opened for exhaust and closed at the end of the admission period by an outer valve member such as g, and the end of the exhaust period and the commencement of admission are determined by the movement of an inner valve member such as k. In another modification, the gear is worked from two half-speed eccentrics or cranks, and only two valves are used, one comprising the outer valve members for cylinders I, IV and the inner member for cylinders II, III, and the other comprising the inner members for cylinders I, IV and the outer members for cylinders II, III. In this arrangement., the exhaust is closed slightly before dead-centre and the admission opened slightly after dead-centre by the outer member, which is then moving slowly: the arrangements previously described with three valves permit of a later closing for exhaust and earlier opening for inlet, and give greater efficiency.
Patent GB-179069-A (GB)
Title: Improvements in airships
IPC: B64B1/58
Filed: 1921-04-27
Abstract: 179,069. Enlind, K. A. April 27, 1921. Airships; aerostats; cars; propelling; planes, arrangement of.-An airship comprises two parallel longitudinal series of independent gas-containers, the containers of each series being spaced apart upon a longitudinal shaft, and the two shafts being connected together by rigid members which pass through the spaces betwen the containers and support a centrally-suspended car. Figs. 1 and 4 show series of cylindrical containers 16 and end containers 18 mounted in spaced relation upon hollow longitudinal shafts 17 passing axially through them. Each container is independent and provided with intake and outlet openings closed by plugs 19. The shafts 17 are connected together by transverse beams 10, and inclined members 11 extend from the shafts to a ridge member 12 connected to certain of the beams 10 by vertical members 13 which support an observation tower 14. A car 15 is suspended from the beams 10, and is provided with front and rear propellers 21, 22 and a rudder 23. Planes 20 extend horizontally and outwardly from each series of containers.
Patent GB-668999-A (GB)
Title: Process for the production of unsaturated hydrocarbons
IPC: C07C2/86
Filed: 1950-05-16
Abstract: Unsaturated hydrocarbons of higher molecular weight than the initial materials are obtained by reacting olefines or aliphatic alcohols with aliphatic ethers at elevated temperatures in the presence of a dehydration catalyst.  Suitable starting materials are, for example, ethylene, propylene or butylene or alcohols containing the same number of carbon atoms which are converted to olefines during the process.  The olefines may be used as a mixture with each other or with saturated hydrocarbons.  Mixtures of olefines and paraffins such as are formed by the catalytic dehydrogenation of gaseous hydrocarbons or the gaseous products obtained by the reaction of carbon monoxide with hydrogen are particularly suitable.  Suitable ethers are, for example, dimethyl ether, diethyl ether, methyl ethyl ether, diisopropyl ether and methyl vinyl ether.  Suitable catalysts are the oxides of aluminium, magnesium, chromium, thorium, tungsten or titanium, phosphates, silicates, kaolin, graphite or infusorial earths.  The reaction is carried out at temperatures in the range 200-500 DEG  C. In the example, dimethyl ether is reacted with normal butylene in the presence of active alumina at a temperature of 350-360 DEG  C.; a mixture of pentenes, hexenes, heptenes, octenes and higher hydrocarbons containing some diolefines is obtained.
Patent GB-558249-A (GB)
Title: Improvements in air heaters or coolers
IPC: F24H3/04
Filed: 1942-08-29
Abstract: 558,249. Heating air. CRUISE, A. J. Aug. 29,1942, No. 12186. [Class 64 (i)] Air forced downwardly by a fan 8 through a casing 5 enclosing a combustion chamber 3 is heated by direct contact with the hot gases discharged from the combustion chamber through downwardly directed 'tubes or ducts 4.
Patent GB-1055706-A (GB)
Title: Reversible current converter arrangement
IPC: H02M5/12
Filed: 1965-03-23
Abstract: 1,055,706. Rectifying; synchronous machines. ELIN-UNION FUR ELEKTRISCHE INDUSTRIE A.G. March 23, 1965 [March 26, 1964], No. 12250/65. Headings H2A and H2F. Controlled rectifiers 7 to 12 supply direct current in one direction or the other to a load from the secondary windings of a polyphase current transformer which is constructed with a phase winding on each leg of its core. The load may be the field winding of a synchronous machine, in which case the circuit provides rapid and precise control especially in a compounded excitation arrangement where rapid demagnetization can be obtained.