baber/WOPTO huggingface dataset:
Patent GB-1158372-A (GB)
Title: Method and Apparatus for Melting Glass
IPC: C03B37/09
Filed: 1968-03-04
Abstract: 1,158,372. Glass melting. JOHNS-MANVILLE CORP. 4 March, 1968 [29 March, 1967], No. 10301/68. Heading C1M. In a method of heating glass in an electrically heated bushing to bring the glass to a desired state for drawing into filaments through orifices in the floor of the bushing, at least three zones are formed in the bushing, upper, intermediate and lower, each zone being partially defined by a pair of longitudinal sidewall sections, the thickness of an intermediate sidewall section being less than the thickness of an upper sidewall section and less than the thickness of a lower sidewall section. A melting chamber 12 is formed by the sidewalls 14, end walls 22, top 18 and bottom 20. Glass marbles are fed in feed holes 26 and are melted, any unmelted portion being retained on a screen 24. The molten glass is drawn out through orifices 32 in the bottom 20. The sidewalls are divided into three sections of which the sidewall thickness T su  and T sl  of the outer sections are equal but are 1¢ to 2 times as thick as the thickness T si  of the intermediate section. The heights of the lower and intermediate sections is the same and that of the upper section is equal to their sum. The end walls 22 are directed into upper and lower sections 22a, 22b of which the upper section 22a has a thickness T eu  twice the thickness of the lower section 22b. Electricity is supplied through lugs 30 attached to the end walls. By fitting the contact nearer the top of lugs 30 more current can be directed to the portions 22a and an upper section of the walls than the lower portions to compensate for the heat losses due to feeding in cold marbles. Further the present wall structure enables a more uniform temperature to be attained through the molten glass immediately above the orifices 32 and prevents " hot-spots " forming above those orifices near the end walls. If desired the end walls may be divided into three sections with lugs attached to the upper and lower sections only.
Patent GB-735111-A (GB)
Title: Improvements in or relating to high speed windmill motors
IPC: F03D1/06
Filed: 1952-04-24
Abstract: 735,111. Wind-motors. BAUER, R. April 24, 1952, No. 10389/52. Class 110(3). [Also in Group XXIV] A high-speed windmill motor comprises elastic spring suspension means for the rotor yieldable to forces acting on the rotor transverse to its rotational axis. The motor may comprise a two-bladed wind-wheel 1, Fig. 1, connected to its shaft 2 by spring bars 3 or a single overhung spring bar shaft. In a modification, the windwheel consists of a single blade which is balanced by a counterweight and supported on an overhung spring-bar shaft which is pivoted on a tower and directed obliquely upwards.. In Fig. 6, the shaft, which in this case may be rigid, is mounted in a housing 24 pivoted to the tower and supported by a compression spring 27. In a second modification, Fig. 8, the blade 7 is held in the starting position, as shown in full lines, by a spring 10 and as soon as it turns it is urged by a weight 9 into the operative position shown in broken lines. In a third modification, Fig. 9, the blade is pivoted at 8 and 12, as shown, and is secured to the shaft by means 13 comprising a spring mounted in telescopically sliding housings. In a fourth modification, the main blade is flanked by a leading blade which extends the full length or part of the length of the main blade. In a fifth modification, the leading blade carries a weight and is connected to the main blade by a spring, whereby the leading blade acts as a centrifugal governor. In a further modification, Fig. 16, the leading blade 17 is moved longitudinally under centrifugal action against the action of a compression spring 31 and at the same time is rotated about its axis by means of a pin 30 engaging a slot 20.
Patent GB-977930-A (GB)
Title: Improvements in or relating to methods and devices for heat treating black malleable cast iron
Filed: 1963-03-15
Abstract: Raw cast iron is fed at 2 into a high temperature push furnace 1 in which it is annealed at a temperature of 950  DEG C. and then brought to a temperature of 850  DEG C. and quenched before being introduced into a low temperature roller hearth, continuous furnace <PICT:0977930/C6-C7/1> 3 in which the quenched material is tempered in a protective gas produced in furnace 1 and passed to the tempering furnace 2 through a pipe 4.
Patent GB-105422-A (GB)
IPC: A61N1/44
Abstract: 105,422. Shanks, J. April 25, 1916. Baths, aerating; water-circulating apparatus.-A bath for hydro-therapeutic treatment, of the type comprising a bathing- compartment and an impeller compartment housing an impeller for circulating the water, has the impeller compartment arranged concentrically with the bathing- compartment. In the form shown, the compartment housing the impeller 3 is separated from the main body of the bath by a grating 2. The usual fittings, a motor switch, and, if desired, a fitting for supplying air to aerate the bath may be provided.
Patent GB-777640-A (GB)
Title: Improvements relating to pneumatic elevators for flour mill stocks
Inventor: STAMFORD BERNARD CLIVE
IPC: B65G53/42
Filed: 1955-04-13
Abstract: 777,640. Pneumatic elevators. SIMON, Ltd., H. March 2, 1956 [April 13, 1955], No. 10605/55. Class 78 (1). Aerated flour mill stock is fed through an inlet a into a casing b through which it passes between vertical walls c, d and over a hinged plate h into the elevating pipe e. A hinged plate k deflects the air, which separates from the stock, in an upward direction so that it passes over the tops of the walls c, d, down between the walls and the sides of the casing, under the plate h and into the base of the pipe e. The top of the casing b may be transparent. A counterbalanced hinged valve o may be provided at the foot of the pipe e. This valve opens if the suction fails. A similar valve may be placed below the bottom j of the casing and may be connected to the plate h so that they move downwards together.
Patent GB-106944-A (GB)
IPC: B64C11/04
Abstract: 106,944. Bradshaw, G. E. Nov. 27, 1916. Screw propellers. -The wooden blade G is secured to an intermediate loose boss A by means of a bolt C, the head C<1> of which is deeper than the fixed boss B and is surrounded by a resilient buffer D of sufficient thickness to prevent the stresses, when the nuts F, K are screwed up, from falling on the boss B.
Patent GB-640746-A (GB)
Title: Improvements in or relating to inflator connectors for tyre valves and the like
Inventor: TURNER HENRY
IPC: B60S5/04
Filed: 1948-04-20
Abstract: 640,746. Inflator connectors. PNEUMATIC COMPONENTS, Ltd. April 20, 1948, No. 10840. '[Class 99(i)] A locking lever 25 pivoted on a body 1 containing a valve 7 in axial alignment with a bore adapted to receive a tyre valve stem, has one end 26 formed with threads 29 to mesh with the threads of the valve stem, and the other end 24 carries a block 21 slidable along a surface 32 of the body and urged by a spring 19 to interpose itself in a position between the lever and the body to lock the former. The lever is pivoted about an axis offset from and at right angles to the bore axis. The block may be slid completely free of the surface 32 and may have a wedging action with the latter provided by a notch 31 in the body. The valve. may have a bore 38 emerging into a cross-bore 39 to provide an air passage.
Patent GB-376755-A (GB)
Title: Improvements in or relating to anchoring devices for furnace and other linings or surfaces made of plastic material
IPC: F27D1/14
Filed: 1931-04-13
Abstract: 376,755. Furnace &c. linings. STANLEY, J. W. E., Embassy Hotel, Bayswater Hill, London. April 13, 1931, No. 10890. [Classes 51 (i) and 51 (ii).] A plastic lining or covering for a furnace or other wall or casing is anchored by means which will allow of relative movement between the wall and its covering. As shown a hook a is embedded in or secured to the wall or casing, and on this is hung a bent plate or strip b, the aperture b<3> in which is larger than the cross section of the hook a. The aperture may be formed by bending down a tongue b<4> from the plate b. When the lining is not of great thickness the portion b<2> of the strip b is bent to V-shape with the point of the V away from the wall. When the lining has an overhanging portion, as shown in Fig. 6, the strip may be bent to engage two hooks a.
Patent GB-1494366-A (GB)
Title: Straight bar knitting machine
IPC: D04B15/52
Filed: 1975-03-17
Abstract: 1494366 Automatic control INSTITUTE TEXTILE DE FRANCE and JAEGER 17 March 1975 [21 March 1974] 10940/75 Heading G3N [Also in Division D1] A yarn supply device for a straight-bar knitting machine having a cam bar 6 and a carrier bar 8 which perform linked reciprocating motions is controlled to feed the needles with yarn via carrier(s) 3 at a rate dependent on the required stitch size and comprises for each carrier 3 a yarn spool 11, a yarn feed unit comprising a driven pulley 13, a yarn take-up device 49 and a fixed yarn guide 48 in the median perpendicular plane P of the needle bar, and an electrical drive system for the pulley 13 whose speed is controlled in dependence on the positions and speeds of both bars 6, 8 so as to maintain the feed of yarn at the required level. Transducer assemblies 14, 15 generate through optical encoders 20, 21 pulses representing the speeds of the bars and through potentiometers 22, 23 D.C. signals representing their positions, the latter signals being used to amplitude-modulate the former at 54, 55. The signal from 23 is corrected at 37 - a pair of biased oppositely connected diodes - by a factor 1  sin α, where α is the angle of carrier 3 relative to plane P. The signal from 22 and that from a potentiometer 30 representing the position of adjustable end stops 10 of bar 8 are compared at 42 to trigger an integrator 43 which generates a ramp voltage to give suitably accelerated and decelerated rotation of pulley 13 at the beginning and end of each course. A manual control 44 and a control 46 responsive to the position in the knitted fabric give adjustment of stitch length. A logic device 41 blocks the signals from 20 when cam bar 6 travels beyond the width of the knitted fabric. The outputs of 54, 55 are compared at 56 with a signal from 47 representing the actual speed of the pulley to produce an error signal which is amplified at 59 to control the drive motor 34. A circuit 60, 61 generates a tachometric damping signal for stability. A single motor 34 may drive several pulleys through belts or a common shaft. Instead of controlling the motor speed, the amplifier 59 may operate an electromagnetic coupling system including a drive coupler and a brake coupler between a constant speed motor and the pulley. The bars 6, 8 may be monitored by purely digital devices, digital-analogue converters providing the D.C. position signals.
Patent GB-197812-A (GB)
Title: Improvements in or relating to liquid level indicators for tanks
IPC: G01F23/18
Filed: 1922-04-19
Abstract: 197,812. Stevenson, J. April 19, 1922. Indicators, electric. - In an electricallyactuated liquid-level indicator for tanks &c., a cylinder A beneath the tank contains a spring- controlled piston B under pressure of the liquid, the piston-rod having attached a plate D, an insulating plate E, and a spring contact F which moves between a resistance H and a plate I to complete the circuit through an ammeter L and battery K. The ammeter has detachable scales graduated to suit liquids of different specific gravity.
Patent GB-273051-A (GB)
Title: Improvements in or relating to means for sharpening safety razor blades
IPC: B24D15/10
Filed: 1926-04-28
Abstract: 273,051. Burton, W. A.. April 28, 1926. Razors.-A holder for stropping and honing double-edge wafer blades of safety razors which can be used with the ordinary razor handle comprises two spring leaves 10, 11 secured together at one end and provided at the other with half-nipples 13, 14 of tapered form and externally threaded so that they may be placed together and screwed into the ordinary razor handle 18 so as to grip the blade 16 between the leaves 10, 11. A clip 21 is provided to cover the blade edge which is not being stropped &c. and to ensure the other edge being stropped at the correct angle, the clip being formed at its edges to grip central ribs 12 on the holder.
Patent GB-395828-A (GB)
Title: Bathroom cabinet
IPC: A47B67/02
Filed: 1932-04-19
Abstract: 395,828. Cabinets. McARD & CO., Ltd., R. and McARD, L., Crown Point, Denton, near Manchester. April 19, 1932, No. 11161. [Class 52 (i).] A mirror forming a door b for a cabinet is mounted on a pair of arms c pivoted on a common axis inside the cabinet lying wholly therein when the door i s closed. The arms are preferably rigidly connected and the door lies within the frame of the cabinet front a.
Patent GB-628049-A (GB)
Title: Improvements in or relating to pistons for internal-combustion engines
IPC: F02F3/02
Filed: 1947-04-26
Abstract: 628,049. Pistons. WELLWORTHY PISTON RINGS, Ltd., and HOWLETT, J. W. April 26, 1947, No. 11222. [Class 122(i)] A piston 16 is, at ambient temperatures tapered from the head 11 towards the skirt in such proportion that, on reaching normal working temperature the periphery of the piston becomes parallel to the walls of the cylinder. Piston ring grooves 18 are machined substantially at right angles to the piston periphery so that the cylindrical periphery of the piston rings will bear against the cylinder wall on reaching working temperature. In a modified form the ring grooves may be machined at such an angle that only the lower edge of the ring bears against the cylinder wall at working temperatures. Tapered-side rings and grooves may be used.
Patent GB-606555-A (GB)
Title: Improvements in or connected with vibration damping mountings for optical observation instruments
IPC: F16F7/09
Filed: 1944-06-13
Abstract: 606,555. Mountings for optical apparatus. BARR & STROUD, Ltd., FRENCH, Sm J. W., STRANG, J. M., and MAcGILL, C. D. June 13, 1944, No. 11330. [Class 97 (i)] [Also in Group XXXII] A resilient mounting for optical observation instruments is provided with at least one damping device comprising a piston slidable in a cylinder open to the atmosphere at both ends, the clearance space between the piston and cylinder containing a viscous, non-volatile, non-freezing oil or other medium which provides a viscous drag. As shown in Fig. 2, the piston-rod D has universal ball connections 4, 5 with the piston C and supported structure E, respectively, which allow relative lateral movements between the supporting structure A and the structure E, the seating 6 for the ball connection 5 carrying a grease chamber 7 of screw-cap type connected by a passage 8 with a passage 9 in the rod D from which radial passages 10 lead outwards for lubrication of all the working parts. The piston C, which is lagged with hard felt, cork, or fabric material 3 impregnated with viscous grease, has a coefficient of expansion greater than that of the cylinder so that when the temperature rises the pressure on the lagging 3 increases and so compensates for the decrease in viscosity of the grease. Figs. 3, 4 show a further construction in which the cylinder B is divided vertically at 11 and cut horizontally at 12 to give it resilience. A stud 13 passing freely through a lug 15 on one part is screwed into a lug 14 on the other part of the cylinder against the action of a spring washer 16 so that, as the piston expands with increase of temperature, increased pressure is exerted on the cylinder, which yields in accordance with the regulation of the stud 13. Specifications 502,535 and 588,137 are referred to.
Patent GB-660860-A (GB)
Title: Improvements in rotary liquid distributors
IPC: A47L15/22
Filed: 1949-04-28
Abstract: 660,860. Spray-producers. TRIUMPH DISHWASHERS, Ltd. April 28, 1949 [May 1, 1948] No. 11351/49. Class 69 (iii). A rotary liquid distributer 1 for cleaning tubs, etc. is mounted on a vertical motor shaft 10 and has a spiral shaped under surface to deflect a liquid stream outwardly in directions from near horizontal to near vertical. The distributer may have a curved upper surface 3 and one or more lobes 4 each having a spiral under surface. Specification 605,298, [Group XXIII], is referred to.
Patent GB-1176207-A (GB)
Title: Method of Killing Growing Plants
IPC: A01N25/02
Filed: 1967-03-10
Abstract: 1,176,207. Herbicidal method comprising spraying dichloropropionanilide. ROHM & HAAS CO. 10 March, 1967 [29 March, 1966], No. 11466/67. Heading A5E. A method of selectively killing or inhibiting the growth of weeds in a locus of an agronomic crop comprises spraying said locus, at the rate of 0.25 to 2.0 U.S. gallons per acre, with 3, 4-dichloropropionanilide dissolved to an extent of at least 0.75 pound per gallon in an organic solvent of b.p. at least 125‹C., the sprayed liquid being in the form of drops having a surface mean diameter of 50 to 400 microns. The application may be aerial or from the ground, and suitable spray equipment is specified. The solvent may be mono(ethyl or butyl) ether of ethylene glycol, t-octylamine, n-butyl acetate, dimethyl formamide, isophorone, cyclohexanone, cyclohexanol, propylene glycol, dimethyl sulphoxide, ethylene or diethylene glycol, monoethyl ether of diethylene glycol, butyracetone, octyl alcohol, diethyl or dibutyl fumarate, diethyl maleate or succinate, methyl oleate, diisopropyl benzene, methyl diethanolamine, triethylene glycol, dodecyl alcohol, or dibutyl phthalate or maleate.
Patent GB-639448-A (GB)
Title: Improvements in bomb slips and analogous releasable attachments
IPC: B64D1/04
Filed: 1948-04-28
Abstract: 639,448. Hooks. VICKERS-ARMSTRONGS, Ltd., and FIRMAN, R. A. April 28, 1948, No. 11640. [Class 89 (ii)] [Also in Group XXI] Relates to releasable load-engaging mechanism comprising a pair of jaws mounted on a common pivot and held in the engaged position by a movable stop interposed between the jaws, the reaction of the load on the jaws tending to eject the stop, the stop being held in position by locking mechanism releasable at will. According to the invention the stop is arranged to pass a sharply defined position between the free and engaged positions on opposite sides of which it is respectively acted upon by unbalanced forces acting in opposite directions. Two load-engaging jaws 62, 63 mounted on a pivot 64 engage a shackle 65 attached to a bomb or load. A roller-stop 66 when between bearing faces 621, 631 prevents the jaws opening to release the load. The stop is connected by a primary toggle 67, 68 and a secondary toggle 70, 71 to a rotary actuator 73. The secondary toggle may be made self-aligning as described in Specification 629,447. When the actuator 73 is energized the toggles break, the stop is withdrawn and the load is released. Springs 90 tend to force the jaws apart and so eject the stop 66 to the free position. Outer bearing surfaces 622, 632, Fig. 4, meeting the surfaces 621, 631 along " knife-edges " A are more widely divergent than the inner bearing surfaces so that the ejective force on the stop due to the springs is greater than the force due to the locking mechanism when the stop bears against these outer surfaces. When the stop passes the " dead-centre" position at the knifeedges, the stop is automatically impelled into the load-engaging position since the ejecting force due to the springs is overbalanced by the external locking force. Specification 572.809 also is referred to.
Patent GB-477987-A (GB)
Title: Improvements in devices for opening and closing hinged windows and the like
IPC: E05F11/06
Filed: 1937-02-23
Abstract: 477,987. Flexible members issuing from guides to form struts. BIERLICH, J.H. Feb. 23, 1937, No. 11688/36. [Class 80 (iii)] [Also in Groups X and XXV] A device for the opening, closing, and securing in position of a hinged member, such as a window and door, comprises a helical spring mounted in a guide member a portion of which is capable of rotation, in order to prevent lateral deflection of the spring by the application of bending forces during opening and closing of the member. In the construction shown in Figs. 1 and 2 applied to a hinged window which is opened by pushing the sash 3, by hand, away from the jamb 2, the helical spring 4 is mounted in a tubular guide member 6 supported in bearings 11, 12, on a window frame, and the end of the spring is attached to a bracket 7 on the sash stile 3 by a spring-loaded shackle 8. A screw clamping device 13 is provided at the end of the guide 6 for locking the spring member in any desired position, and in order to prevent the spring from being withdrawn entirely from the guide when the window is opened, a rod 15 is provided, one end of which engages a portion 16 of the bearing 12 and the other end bears a sleeve 17 of larger size than the contracted end of the spring. In the modification shown in Fig. 6, a wire 58, on which are threaded a number of beads 60, is provided within the spring 52, which latter may be rendered rigid by tensioning the wire by means of a cam lever 59, to which the lower end of the wire is secured. In this case, the mechanism is screw-actuated by a known form of handle-gear 57.
Patent GB-1498451-A (GB)
Title: Hydraulic valve control system
IPC: B66C13/40
Filed: 1975-03-20
Abstract: 1498451 Automatic control systems TEDECO AG 20 March 1975 [22 March 1974] 11758/75 Heading G3N The position of a plurality of hydraulic valves are remotely controlled using groups of digital pulses, with manually adjustable spaces between adjacent control pulses in each group. Each pulse is decoded into an electrical position control signal for a respective member, which signal is of a pre-set magnitude but of duration proportional to the time between that pulse and the preceding pulse. In the embodiment, for controlling six valves in a crane, transmitter 11 produces pulse groups, each of seven pulses with an initial pulse from multivibrator 20 and a control pulse for each valve from multi-vibrators 21 to 26, spaced according to the manual setting of levers 21A to 26A. Each pulse group is transmitted by cable, or radio link to receiver 13 where they pass to decoder counter 32. Each decoder output 33 to 38 forms a respective electrical control signal of variable duration, according to the setting of levers 21A to 26A, which is compared with a pre-set value. The resultant is used to control the position of a respective cylinder 17, via an electrical-hydraulic converter 15, in accordance with the setting of the levers. The groups of pulses are transmitted at 50 Hz and provide a control signal for cylinder 17 that pulsates and reduces stiction effects of the cylinder. If, due to spurious pulses, more than seven pulses in any pulse group are received at 13, the decoder is re-set and control pulses to converter 15 blocked. Since all the valves are controlled by pulses passing from the transmitter 11 to receiver 13 along a single cable or radio link, the connections between the transmitter-receiver are minimized.