baber/WOPTO huggingface dataset:
Patent GB-729102-A (GB)
Title: Improvements in combustion chambers of internal combustion engines
IPC: F02B23/08
Filed: 1953-05-15
Abstract: 729,102. Combustion chambers. GENERAL MOTORS CORPORATION. May 15, 1953 [May 28, 1952], No. 13604/53. Addition to 713,473. Class 7(2). In the engine described in the parent Specification wherein the surface of a cylinder head 17 overlaps and conforms to the top 24 of a piston 14 to form a clearance space 27 within which inlet and exhaust valves 19, 21 are located, and a firing chamber 29 in the head overlies and is to one side of the piston, there is a clearance space 31, deeper than the space 27, around the valves and in communication with the chamber 29 and by way of a passage 32. The ignition terminals 41 of a sparking-plug 39 in the chamber 29 are closer to the adjacent junction of the spaces 27, 32 than that part of the chamber most remote from the chamber outlet. Preferably the top of the piston 14 is flat and parallel to the undersurface of the wall 26 of the head 17, and the sparking plug 39 is preferably located midway between the opposite ends of the chamber 29 and directed obliquely across the chamber toward a point immediately below the lower edge of the wall 36. The chamber may have semi-cylindrical end walls 33, 34, an arcuate-shaped top wall 38 and parallel side walls 36, 37, and extend parallel to the plane containing the axes of the valves 19, 21 ; the outlet of the chamber is at least equal in crosssectional area to any part of the chamber extending into the head 17, and the side wall 37 may be provided with an arcuate recess 42 in which the terminals 41 are located.
Patent GB-145945-A (GB)
Title: Improvements in concrete railway ties
IPC: B61L5/16
Filed: 1919-05-29
Abstract: 145,945. Gey, F. J. May 29. 1919. Sleepers, composite; chair plates.-A non-reinforced concrete sleeper 1, substantially inverted- T shape in cross-section, has sloping sides 2 and integral enlargements 3 at the rail seats, which are provided with recesses 4 for wooden cushions 5. The cushions carry metal plates having transverse anti-rail spreading lugs on their upper surfaces.
Patent GB-552899-A (GB)
Title: Improvements in or relating to joints between pipes and fuel containers
IPC: F16L41/08
Filed: 1941-10-24
Abstract: 552,899. Pipe connections. SHAKESBY, L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 24,1941, Nos. 13682/41 and 16170/42. [Class 99 (i)] Means for jointing connecting or outlet pipes to the walls of flexible or semirigid fuel containers for aircraft &c. comprise outer and inner tubes 8, 9 arranged with the outer tube seating at its ends 7, 7<SP>1</SP> against members 3, 31 attached outside the walls of the containers 1, 2, and with the inner tube passing through holes in the walls and provided at its ends with means for clamping the parts together axially. The inner tube may have a flange 10 at one end and a nut 12 at the other end ; or there may be nuts at both ends. The members 3, 3<SP>1</SP> are bolted to interior members 4, 4<SP>1</SP>. The ends of the tube 8 and the engaging faces on the members 3, 3<SP>1</SP> are preferably conical. In a modification, the ends of the outer tube are square and bear against the exterior of the container walls, either directly or through resilient washers. The parts may be made of metals or alloys, or of synthetic material impervious to petrol fuels. When the connection is to serve as an outlet, a branch tube is attached at the centre of the tubes 8, 9.
Patent GB-330097-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22D5/10
Filed: 1929-05-02
Abstract: 330,097. Davey, Paxman, & Co., Ltd., and Stuart, M. R. F. H. May 2, 1929. Feedwater, controlling.- To maintain the water at a constant high level while the steam demand is normal and at a constant low level when the demand increases, the spindle 9 of a float 8x operating the feed valve 13 when the steam demand is normal carries a perforated or leaky piston 7, the upper side of which may be opened to the atmosphere through a passage 19 controlled by a valve 17, which opens when the steam demand increases and the boiler pressure falls, and allows the steam pressure, acting beneath the piston 7 to close the feed valve. The water level then falls until a second float 33 on a lever 31 brings a cam surface against the lower end of the spindle 30 of the valve 17, which controls the pressure above the piston 7 and consequently the operation of the feed valve. The valve 17 is pressed downwards against the upward pressure of the boiler 'steam, which is admitted to its lower end through a passage 20, by an adjustable spring 23. When the boiler pressure increases, the valve 17 closes and the water level rises again to the high level at which it is maintained by the float 8x.
Patent GB-559502-A (GB)
Title: Improvements relating to the manufacture of electrodes for use with piezo-electric crystals
IPC: H03H3/02
Filed: 1942-10-01
Abstract: 559,502. Making electrodes. SMITH, S. J. Oct. 1, 1942, No. 13767. [Class 83 (ii)] [Also in Group XL] An electrode plate for a piezoelectric crystal comprises a flat plate 10 having risers 11 at the corners for clamping the crystal. The risers are provided by forming holes or recesses in the plate into which are inserted riser elements in the form of rods, bars or beads. The projecting ends of the risers are then ground to the desired height. The electrode may be of metal or of metallized ceramic material.
Patent GB-1393857-A (GB)
Title: Vibration technique for rot detection in wood poles and trees
IPC: G01N29/11
Filed: 1973-03-22
Abstract: 1393857 Sonic detection of decay in wood FANNER MFG CO PTY Ltd and A D SHAW 22 March 1973 [11 April 1972] 13768/73 Heading H4D A wooden object such as a pole is tested for internal decay by applying a vibrational force to the object at a selected point, measuring the strength of emergent energy from the object at several points spaced along the length of the object and comparing the measurements to determine the pattern of energy strength variation with distance along the object. In the embodiment described the vibrational force is applied by a transducer driven with a square-wave signal whose frequency is adjusted for resonance within the pole. A piezoelectric pick-up is fixed in turn to spikes driven into the pole at measurement points spaced along a line diametrically opposite the vibrating transducer, or respective pick-ups may be fixed to the spikes. The pick-up signal feeds a meter calibrated in RMS velocity. A sound pole is stated to result in a general decrease in measured energy with increasing distance from the point of application of the force, whereas for a decayed pole the measurements at points removed from the point of application may be some 50% greater than a measurement adjacent the point of application.
Patent GB-1400405-A (GB)
Title: Yarn winding machines
IPC: B65H61/00
Filed: 1971-05-07
Abstract: 1400405 Control of winding machines and length measurement JAMES MACKIE & SONS LTD 11 July 1972 [7 May 1971] 13778/ 71 Headings D1D and D1F [Also in Division G3] In a precision winding machine the yarn or tape 2 engages a speed detecting means, e.g. pulley 12 connected to a tachogenerator 38, a control unit 40 is set to a predetermined voltage which corresponds to a desired speed of the yarn or tape and this is compared with a signal from the speed detecting means and the voltage or frequency of the electrical supply to the winding spindle motor 22 is adjusted accordingly. The tachogenerator 38 may be replaced by a device which causes fluctuations in an electric circuit. The windup motor is preferably an A.C. induction motor. A gapped disc 30 rotates past a sensor 35 which operates a length indicator 34 calibrated in yards. The apparatus also includes tensioning pulleys 8, a slub catcher 10 and a stop motion 26.
Patent GB-1110932-A (GB)
Title: Reciprocating liquid pumps
Inventor: SKINNER ROBERT THOMAS JOHN
IPC: F02M39/00
Filed: 1964-04-03
Abstract: 1,110,932. Reciprocating pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. May 14, 1965 [April 3, 1964], No.13801/64. Heading F1A. Pistons 29 and 30 reciprocated by eccentric 19 deliver liquid through cylinder outlet orifices 37 and are movable against the springs 27 when the outlet pressure exceeds the biasing force. The cylinders 31 and 32 are secured to the casing 17 and the bucket valves 35 are of nylon. The pump may supply fuel to a fuel injection device as described in Specification 1,110, 931.
Patent GB-103091-A (GB)
Title: Improvements in Beam Compasses, Trammels and like Instruments.
Inventor: BEGG JOHN
IPC: B43L9/04
Filed: 1916-09-28
Abstract: 103,091. Begg, J. Sept. 28, 1916 Beam compasses, trammel, &c. are provided with sliding heads constructed of wood or of other material. The head b carrying the pointer d is held in position by a wedge e, which is prevented from being detached therefrom bv means of a pin f passing through the slot e<1>. The head c carrying the pencil consists of a box having one side c<2> pivoted thereto, and is provided with a spring g which retains the head or the beam and also retains the pencil h in place on the head.
Patent GB-568760-A (GB)
Title: Improvements in and relating to speed control arrangements for induction clutches
IPC: H02P29/00
Filed: 1943-08-25
Abstract: 568,760. Automatic control systems for induction clutches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 25, 1943, No. 13835, Convention date, Aug. 26, 1942. [Class, 38 (iv)] Speed.-To maintain the speed of the driven element of an induction clutch constant under changes in load, an auxiliary generator varies the excitation of an exciter for the clutch inversely to any change in speed. An amplidyne exciter is preferred, As shown, a. shunt winding 16 is connected through a rectifier to an A.C. supply for a driving motor 5 and opposed by a winding 12 energized by a shunt excited generator 13 coupled to the output member 4 of the clutch, the driving member 2 carrying a magnetizing winding 3 connected to the main brushes of the amplidyne 7. A. variable resistance 14 determines the speed of the output shaft 6.
Patent GB-1145082-A (GB)
Title: Coated abrasive articles
Inventor: BRYON JOHN PATRICK
IPC: B24D11/00
Filed: 1965-04-01
Abstract: 1,145,082. Abrasive composition. ENGLISH ABRASIVES CORP. Ltd. 23 March, 1966 [1 April, 1965; 17 Dec., 1965], Nos. 13878/65 and 53689/65. Heading C4V. A coated abrasive article comprises a backing, and a bond comprising a plurality of coats securing abrasive particles to the backing a bond including at least in the outermost coat a filler containing or consisting of a simple or complex metal halide, the proportion of filler being 40-90% by weight of the total composition of that coat. The halide may be sodium or potassium chloride or bromide with or without sodium or potassium hexafluoride. Other halides specified are ferric, magnesium and aluminium fluoride, potassium borofluoride and sodium or potassium silico fluoride.
Patent GB-217244-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22B11/00
Filed: 1924-06-06
Abstract: 217,244. Suck, J. June 7, 1923, [Convention date]. Compound boilers; generating by direct contact of steam; hot-water storage apparatus. - In a boiler plant comprising high and low pressure boilers, surplus steam from the high pressure boilers is led into the water in the low pressure boilers which are formed with large heat accumulating spaces. Surplus steam from a high pressure water-tube boiler k<1> and superheater 6 passes through a pipe 15 terminating in nozzles 21 in the water space of a low pressure, boiler k<2>. When the steam demand upon the low pressure boiler decreases, the water level rises into a hotwater storage chamber 11. The feedwater is then supplied into the steam space through a distributor 35. If the low pressure steam demand increases, the feed supply is reduced or stopped and the water level in the storage chamber falls. Feedwater may enter the lower part of the boiler through a pipe 31. Hot water is supplied to the high pressure boiler from the storage chamber when there is little steam in the high pressure boiler or when there is an excess of steam in the low pressure boiler. A Laval nozzle 20 or the like in the steam pipe 15 prevents an excessive rise of pressure in the low-pressure boiler. The low-pressure boiler is heated by the gases passing from the high-pressure boiler, and may also be heated by waste gases. The low-pressure boiler may be traversed vertically by heating tubes, and the storage chamber may consist of a vertical cylindrical chamber forming an extension of the cylindrical boiler shell. Specifications 184,469 and 193,426 are referred to.
Patent GB-243623-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B3/18
Filed: 1925-05-27
Abstract: 243,623. Budd Wheel Co., (Assignees of Nelson, E. A.). Jan. 29, 1925, [Convention date]. Detaching from, and attaching to, permanent hubs.-The inter-hub seating surfaces between a detachable wheel hub and the permanent hub are spaced axially and the securing means for the detachable hub are arranged between the seatings. The invention is described as applied to a construction which enables a wire-spoked wheel to replace a disc wheel of the type shown in Fig. 3, and comprises two radial abutments 19, 20 on the permanent hub flange 15, and the provision on the outwardly flared flange 22 of the wirespoked wheel of two corresponding seatings between which are disposed bolt holes 24 provided with tapering, or spherical seatings for similarly shaped nuts. The brake rim 18 is secured on an annular seating on the inside of the flange 15 and is offset to accommodate the inner end of the detachable hub. Two sets of spokes 27, 28 connect the rim to the inner and outer ends of the hub and lie on each side of the seating surfaces.
Patent GB-611809-A (GB)
Title: Improvements in or relating to magnetic braking devices for electric induction motors
IPC: H02P3/26
Filed: 1946-05-08
Abstract: 611,809. Electromagnetically-operated brakes. BROUSSOUSE, F. L. May 8, 1946, No. 13948. Convention date, Sept. 17, 1945. [Class 103 (i)] [Also in Group XXXV] A magnetic member rotatable with the rotor is attracted magnetically towards an end ring of the squirrel-cage rotor when the windings are energized to assist in releasing a brake applied electromagnetically by the attraction of said member by a fixed electromagnet. As shown, the axially movable plate 13 is held against the braking surfaces 21, 22 when the coil 11 is energized, but when the motor is energized it is drawn magnetically towards the end ring 8 into which its guide pins 14 project.
Patent GB-369059-A (GB)
Title: Improvements in the production of friction-resisting surfaces in bearings, guide-members and the like made of aluminium or aluminium alloys
IPC: F16C33/12
Filed: 1931-05-11
Abstract: 369,059. Bearing materials. VEREINIGTE ALUMINIUM-WERKE AKT.-GES. and THOMAS, F., Lautawerk, Lausitz, Germany. May 11, 1931, No. 13955. [Class 12 (i).] The bearing surfaces of members made of aluminium or aluminium alloy are oxidized such as by treating the member in an electrolytic bath with an alternating current. Oils, fats, or the like may be applied to, and are absorbed by, the oxydic coating.
Patent GB-418425-A (GB)
Title: Improvements relating to ship's derrick gear
IPC: B66C23/60
Filed: 1934-05-10
Abstract: 418,425. Derricks. MITCHELL, C., 2, Lixmount Avenue, Edinburgh. May 10, 1934, No. 14099. [Class 78 (iv).] A cargo derrick D, as shown, is provided with two topping lifts E, F led over pulleys on opposite ends of an upper derrick table A and passing to a deck anchorage and to a winch respectively, and the derrick heel is adjustable on a lower derrick table B to either side of the mast in order to control the bias on the derrick and to vary the outreach. The derrick heel may be traversed by screw-and-nut gear. Two notches H, L are provided. The derrick heel is moved to that side of the mast towards which the derrick is to be swung, the topping lift at that side is anchored, and the derrick is slued by the winch at the opposite side. The controls of the winches are at the inboard side for operation by one man.
Patent GB-456640-A (GB)
Title: Improvements in or relating to scanning oscillators for television and like systems
IPC: H03K4/34
Filed: 1935-05-17
Abstract: 456,640. Valve generating circuits. TINGLEY, G. R., PUGH, D. W., and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. May 17, 1935, No. 14109/36. Divided out of 456,666. [Class 40 (v)] In a generator of saw-tootl oscillations for the control o: scanning in television &c., of the type comprising a valve having its grid and anode cir cuits coupled for the produc tion of oscillations, the coup ling being so tight that the production of oscillations is periodically modified or inhi bited, a variable grid potentia is given by a potentiometer fed by a battery or, as shown, by a rectifier. A large condenser 6 shunts the potentiometer. The grid coil 2 is wound on the anode coil, so as to obtain tight coupling with small capacity of the grid coil to the ferro-magnetic core which has an air gap the length of which fixes the fly back time. Specification 456,138 is referred to.
Patent GB-942053-A (GB)
Title: Improvements in or relating to bottle crates
Inventor: GERRARD JOSEPH
IPC: B65D85/30
Filed: 1960-04-22
Abstract: 942,053. Bottle crates. LOCKER INDUSTRIES Ltd. April 24, 1961 [April 22, 1960], No. 14122/60. Heading B8P. A wire bottle-crate constructed to hold bottles on their sides is adapted to stack in registered location and is provided with a front cover which retains the bottles by engaging their necks. Portion v<SP>1</SP> (Fig. 3) engages the top of the crate below when they are stacked. The front cover is hinged at x<SP>2</SP> and has clip portions x<SP>1</SP> which engage the top member g and, when stacked, is prevented from opening by a portion s on the crate stacked above it. Alternatively, the front cover may be fully detachable.
Patent GB-495719-A (GB)
Title: Improvements in bedstead frame connections
IPC: F16B12/60
Filed: 1937-05-21
Abstract: 495,719. Bedstead corner joints. FINESTONE, H. G. May 21, 1937, Nos. 14126 and 17411. [Class 52 (ii)] For connecting a base support for a mattress to the head and foot members of a bedstead, a bracket 1 is fitted to the side rails of the support, the bracket having a lower flange 5 on which the side rail rests and terminating in a right-angled plate 10 having a slotted aperture 9. The plate is cranked at 8 to allow the bed posts and side rails to be aligned. A sole plate 14 is fitted to each bed post, the plate having two hooks 12, 13 projecting at right-angles to the plate, the hooks being shaped to form slightly wedge shaped cavities with the sole plate so that the bracket plate 6 becomes firmly wedged into the cavities and racking movement of the members is prevented.
Patent GB-803715-A (GB)
Title: Improvements relating to rotary fluid pressure motors
Inventor: WALKER DEREK WILLIAM ROSS
IPC: F01C11/00
Filed: 1956-05-09
Abstract: 803,715. Rotary motors. FLEXIBLE DRIVES (GILMANS), Ltd., and WALKER, D. W. R. May 2, 1957 [May 9, 1956], No. 14357/56. Class 110 (2). Two or more fluid-pressure rotary motors 10, 17, to drive a tool, are coupled in pairs by a flexible shaft 14 which extends through a flexible hose 18, the ends of the hose being secured in pressure - tight manner to the casings of the motors. The motor connections may be axially slidable to prevent end pressure on the rotor shafts. The motors may be of the outwardly-sliding vane type, as shown, or of another type. The hose 18 is of rubber, reinforced with fabric, and is strengthened internally by a liner formed of a helicallywound steel strip 29. In the Figure, compressed air enters a socket 11 to drive the motor 10 and passes through the hose 18 to the second motor 17. At 20, a de-scaling head for tubes, or other tool, may be attached.
Patent GB-1084491-A (GB)
Title: Change speed gearing
IPC: F16H3/095
Filed: 1965-04-05
Abstract: 1,084,491. Variable-ratio gearing. EATON YALE & TOWNE Inc. April 5, 1965 [April 20, 1964], No. 14377/65. Headings F2C and F2D: In a range shift transmission the auxiliary gear unit consists of ratio pinions 9, 74, 77 on input, intermediate and output shafts 6, 69, 61 respectively, and meshing with identical gear clusters 46, 47, 48 on twin countershafts 44, 44a. The shaft 6 may be driven by a main countershaft gear of the type described in Specification 923,627, Fig. 3 (not shown). The right-hand end of intermediate sleeve shaft 69 carries an axially fixed dog clutch 92, while ratio pinions 74, 77 are controlled by axially movable dog clutches 103, 111. The right-hand end of clutch 103 has short splines 106 engageable with pinion 74, its other end also having short splines 105 engaging splines 73 on shaft 69 to permit tilting of the clutch and radial floating movement of pinion 74 for drive balancing. To permit similar movement of pinion 77 the left-hand ends of splines 115 on clutch member 111 normally engage the right-hand ends of splines 64 on driven shaft 61. Clutches 103, 111 may be air operated, a direct drive being obtained by moving both clutches to the left to engage pinion 9 and clutch 92 respectively. With clutch 103 engaging pinion 74 and clutches 92, 111 interengaged a low-speed ratio is obtained from pinion 9 through pinions 46, 46a, shafts 44, 44a, pinions 47, 47a, 74, intermediate shaft 69 and clutches 92, 111. Creeper pinion 77 is rendered effective with clutches 103, 111 in the positions shown, drive being transmitted from pinioh 9 through pinions 46, 46a, shafts 44, 44a and pinions 48, 48a, the shaft 69 carrying pinion 74 being disconnected from shafts 6, 61.  The floating clutch and pinion arrangement forms the subject of Specification 1,084,492.
Patent GB-688444-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H50/16
Filed: 1951-06-18
Abstract: 688,444. Electromagnetic relays. ALBISWERK ZURICH AKT.-GES. June 18, 1951, No. 14444/51. Class 38 (v) In a relay, a piece of copper or brass or other conducting non-magnetic material 12 is placed at a point exposed to stray flux thereby reducing the rate of change of the stray flux, by production of eddy currents, and increasing the rate of change of the useful flux and speeding the action of the relay or making it more sensitive. The relay may be for D.C. or A.C. In the form shown which is for D.C., the element 12 is arranged beneath the poles 3, 4, and a portion 12a of it carries the fixed contacts 10, 11 which are adapted to be bridged by a pin 9 on the wedge shaped armature 5 which is supported by the leaf spring 6. Specification 688,445 is referred to.