baber/WOPTO huggingface dataset:
Patent GB-318470-A (GB)
Title: Improvements in and relating to supports for machine guns for firing upon aerial targets
IPC: F41A27/06
Filed: 1929-09-02
Abstract: 318,470. S.A.F.A.T. Soc. Anon. Fabbrica Armi-Torino. Aug. 31, 1928, [Convention date]. Tripod mounts jor machine guns.- An anti-aircraft mounting has the gun cradle 1 trunnioned at 3 to the top of a central column 5 which can slidevertically in a second column 6, to which the cradle is connected by a link 7, the arrangement being such that, during large changes in elevation of the gun effected by adjusting the central column, the control handle 2<1> of the gun remains at a convenient medium height. Fig. 4 shows the central column adjusted by a rack 5<1> and pinion 11, the pinion being directly rotated by a handle 10 engaging a socket 12 when quick movements are required, and indirectly rotated through a worm gear 13 and clutch 16 when fine movements are required, the handle 10 then engaging a socket 14. The clutch 16 is automatically disengaged when the handle 10 is pushed into the socket 12. The column 6 is slidable in the tripod head 22 and in a guide 19 formed in a wheeled axle 20 which facilitates transport. The gun is supported in firing position by the telescopic tripod legs 23, 24, and by the base of the column 6 which rests on the ground. For transport on the wheels 21, the column 6 is raised and held by a pin 31, and the tront legs 24 are swung round on vertical pivots 29 into the position shown in Fig. 3.
Patent GB-870602-A (GB)
Title: Improvements in or relating to fluid-tight safety valves
IPC: F22B37/44
Filed: 1959-08-05
Abstract: 870,602. Valves. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 5, 1959 [Aug. 8, 1958], No. 26717/59. Class 135. A safety valve comprises a valve member 2 biased on to a valve seat 4 by a spring 6, a diaphragm 3 providing a seal downstream of the seal formed between the valve member and its seat and fluid-responsive means provided for mechanically rupturing the diaphragm. The valve member 2, which closes off the end of a conduit 1 carrying a pressurized fluid, is loaded by the spring 6 acting between a plate 5 and a guide 8, the position of the latter being adjusted by a screwed rod 7; the plate 5 clamps between it and the valve member the diaphragm 3 in the form of a thin metal disc welded at its periphery to the conduit. A sleeve 9, having a cutting edge 10, is loaded by a spring 13 towards the diaphragm but is retained, in the inoperative position, by a latch 11 which is released by a trip catch 14 actuated by a bellows 16. In operation, any build-up of pressure in the conduit 1 tends to open the valve 2, this pressure also being communicated via a pipe 18 to the bellows 16 which, against the action of a spring 17, actuates the latch 14 thereby releasing the spring-loaded sleeve 9, the latter then shearing the diaphragm and permitting the escape of the fluid to atmosphere through an orifice 19; the latter may be replaced by a pipe connected to an exhaust manifold.
Patent GB-263576-A (GB)
Title: Improvements in and relating to the treatment of phosphatic materials
IPC: C01B25/12
Filed: 1925-10-26
Abstract: 263,576. Hill, B. P., and Blaydon Manure &. Alkali Co. (1877), Ltd. Oct. 26, 1925. Phosphorus. - Phosphatic materials are distributed as a suspension or cloud throughout a very hot gas phase whereby phosphorus or phosphorus pentoxide is liberated. In the preferred form of the invention finely-divided rock phosphate mixed with pulverized coal and, if necessary, with silicious material is injected continuously either vertically or horizontally into a combustion chamber. The resulting gases may be passed to a dust chamber, cyclone separator, or electrostatic precipitator, operating at a temperature above the condensation point of phosphorus. The finely-divided phosphates &c. may also be carried into the combustion chamber by the blast of primary or secondary air feeding the pulverized coal or oil or gaseous fuel burner. The powdered raw material may also be allowed to fall through the rising flame of such fuel. When the oxide or oxyacid of phosphorus is required, secondary air is admitted. The product may be adsorbed in reagents or collected by electrostatic precipitation. Recuperators may be provided to preheat the air required for the process.
Patent GB-1399714-A (GB)
Title: Snap-action switch
IPC: H01H37/36
Filed: 1972-06-08
Abstract: 1399714 Thermal switches DANFOSS AS 8 June 1972 [8 June 1971] 26778/72 Heading H1N A snap action switch includes a pivoted (about pivot 3) lever 1 biased to one limit position (against stop 22) by an adjustable control spring 26 (to vary the operating temperature) and a transducer 17 (bellows) for urging lever 1 towards a second limit position (against stop 10) and having a non-linear input/output characteristic such that the torque applied to lever 1 thereby varies non-linearly with variation in an input quantity supplied to the transducer 17 and at a rate which varies progressively with variation in the input quantity, and a snap spring 2 with a negative spring rate. Control spring 26 compensates for the variation in pick-up/drop-off differential of the switch at different settings of the spring 26 due to the non- linearity in the transducer 17 input/output characteristic by exerting its force on lever 1 at an angle substantially less than 90 degrees relative to lever 1.
Patent GB-1303342-A (GB)
IPC: F41A9/54
Filed: 1970-06-04
Abstract: 1303342 Automatic firearms WERKZEUGMASHINENFABRIK OERLIKONBUHRLE AG 4 June 1970 [18 June 1969] 26918/70 Heading F3C An automatic firearm comprises a trigger (Fig. 6, not shown) and a gate 23 for opening and closing a channel 18 for the ejection of empty cartridge cases. A common control mechanism is provided for operating the trigger and a mechanism 31 for opening and closing the gate, the arrangement being such that the gate is opened before the first round is fired and shut after the last round has been fired. In the construction shown the gate consists of a flap 24 whilst the mechanism 31 is provided by a piston and cylinder assembly. The flap 24 is urged to its closed position by a pair of springs 37 which act on the cylinder 30 of the piston and cylinder assembly. The mechanism 31 is hydraulically actuated as is the trigger. The mechanism 31 and the trigger actuators are connected in the same hydraulic circuit, fluid being allowed to flow freely to the mechanism 31 during actuation thereof but being throttled when the mechanism 31 is vented to delay the closing of the gate until after the last round has been fired. The firearm is disclosed as being mounted for elevation on the turret of a armoured vehicle (Fig. 1, not shown).
Patent GB-949146-A (GB)
Title: Vibratory feeder and orientor of articles such as screw blanks
IPC: B65G47/14
Filed: 1962-07-13
Abstract: 949,146. Rolling screw threads. D. H. PRUTTON. July 13, 1962, No. 26973/62. Heading B3M. [Also in Division B8] Screw blanks 10 are fed to rails 69, 70 by means of barrel 89. Thus, blanks are thrown into hopper S and are raised therefrom by the fins 89a of the barrel which in their top position drop the blanks into trough 94 which seat the blanks between the rails 69 and 70 in position so that the shank falls downwards. The rails 69, 70 constitute a jigging conveyer, being carried by springs 80, 81 and being reciprocated by vibrator 86. The springs 80, 81 are mounted on base 67 which is pivoted at 99 to the frame work and the inclination of the frame and therefore of the rails is varied by nut 100. The blanks are delivered at D to the thread-cutting machine 12. The rails carry a top member 95 which is adjustable vertically at 96 and the rails are adjustable horizontally by means of screws 78 moving in slots 70d so that the distance between machine 12 and the rails may be varied.  Thread rolling machine 12, Fig. 2.-The machine comprises fixed dies 46 and 46<SP>1</SP> and moving dies 26a to 26d which are carried by ring 26 and rotate about axis 23. The blanks are fed by rail 68 and 69 to position D where they are propelled between the moving dies and the fixed die by a reciprocating finger 145. The finger is reciprocated via the lever system shown by cam follower 43 operated by cams 41 rotating with ring 26, so that the blanks are introduced into the space between the dies in synchronism with ring 26. Springs are introduced between cam follower 43 and finger 145 so that if a blank should jam the mechanism the mechanism will yield and not break.
Patent GB-969097-A (GB)
Title: Plastics bags
Inventor: THOMAS ERIC JOHN ARNOLD
IPC: B65D30/24
Filed: 1962-07-13
Abstract: 969,097. Plastics bags. IMPERIAL CHEMI CAL INDUSTRIES Ltd. April 29, 1963 [July 13, 1962], No. 27000/62. Heading B8K. A block-ended bag is made from a blank of tubular thermoplastic sheeting, Fig. 1, by forming in one end 2 of the flattened blank 1 two cuts 3, 4 each through both walls of the blank and parallel to the side folds, cut 4 being a distance x/2 from its nearer side fold and of length, l, greater than x/2 but not greater than x, where x is the required width of the block end, and cut 3 being a distance x/2 + y from the other side fold and of length l-y, where y is small compared with x. The blank is then gripped at 5 along a line at a distance x/2 from the end of cut 4, the flaps 6, 7 between the cuts are folded outwardly, Fig. 2, causing the side portions 8, 9 to fold inwardly forming flat corner pieces 10, 11, and the flaps 6, 7 are folded in wardly along parallel lines following the cut edges 4 of the corner piece 11, the flaps anc parts of the corner pieces being heat seamed while held against a former. A suitable former is a flat spade of width x with a pointed end inserted over corner piece 10 and under corner piece 11. If corner piece 10 is wider than corner piece 11, then parts of corner piece 10 will be folded back over the spade and seamed to flaps 6 and 7 forming a valve. The other end of the bag may be blocked or closed by a straight seal.
Patent GB-1175606-A (GB)
Title: Improvements relating to Magnetic Compasses
Inventor: GATEHOUSE RICHARD NORTON BINGH
IPC: G01C17/26
Filed: 1967-06-12
Abstract: 1,175,606. Magnetic compasses. MOBELL MARINE DEVELOPMENT CO. Ltd. Aug.27, 1968 [June 12, 1967], No.27062/67. Heading G1N. The angular relationship between a magnetic compass and its housing is sensed by Hall plate elements mounted on the housing and fed to a repeater indicator. As shown Fig. 1 a diametrically magnetised ring magnet 1 attached to a compass card 2 is suspended in a bearing 4 in a liquid filled bowl 16. A central stem 6 attached to the bowl carries a Hall plate element 5. Relative movement between the magnet and the housing, e. g. by a change of heading of a ship on which it is mounted, produces a change in signal voltage from the Hall plate element 5, which is fed to a repeater. The assembly has facilities for initially adjusting the housing to produce zero output signal at a desired craft heading. Modifications include replacing the ring magnet by two parallel bar magnets Fig. 5 (not shown) with like poles adjacent, and using two Hall plate elements whose planes are perpendicular, or three element at 120 degrees to each other.
Patent GB-606687-A (GB)
Title: Improvements relating to flow restrictors for refrigeration systems
IPC: F25B41/06
Filed: 1945-10-17
Abstract: 606,687. Regulating fluid flow. GENERAL MOTORS CORPORATION. Oct. 17, 1945, No. 27190. Convention date, Feb. 14. Addition to 598,913. [Class 135] [Also in Group XIII] A unitary flow restrictor and heat exchanger for refrigeration systems comprises two concentric tubes 22, 26, one containing a sintered mass 24 of non-compacted metal powder metallurgically bonded to the walls thereof and forming a multiplicity of tortuous capillary passages, and the other containing sintered non-compacted metal powder 28 metallurgically bonded to the walls thereof and to the outer walls of the first tube, so that fluid flowing through the second tube influences the temperature of fluid flowing through the first tube. The metal powder is predominantly copper, e.g. bronze or a copper-nickel alloy, and the pore size of the mass 24 is greater than that of the mass 26. The Specification as open to inspection under Sect. 91 comprises also a flow restrictor as described in the parent Specification connected in series with a heat exchanger comprising two concentric tubes between which is a mass of sintered non-compacted metal powder. Between the heater and heat exchanger is provided a filter chamber containing two porous plates made from sintered non-compacted metal powder, between which a dehydratingor drying agent may be included. This subject-matter does not appear in the Specification as accepted.
Patent GB-1529259-A (GB)
Title: Irrigation systems
IPC: A01G25/02
Filed: 1977-06-17
Abstract: 1529259 Irrigation tubes REED INTERNATIONAL Ltd 17 June 1977 [30 June 1976] 27205/76 Heading AID Porous irrigation tubes laid on or below the ground surface are formed from kraft or similar paper. Each tube is formed from a single strip with two longitudinal folds to form an overlap at its edges which are stuck together with hot melt adhesive. The service life of the tubes is from six to eight weeks, and afterwards they are left to rot.
Patent GB-156370-A (GB)
Title: Improvements in rolls for rolling metal bars or the like of varying cross section
IPC: B21H8/00
Filed: 1919-11-05
Abstract: 156,370. Baehr, G. Nov. 5, 1919. Rods and bars; punches; 'cold chisels; spikes; levers.-Bars are rolled to form aeroplane ti.erods, reinforcements for concrete, or strings of articles, such as punches, cold chisels, spikes and crow-bars, of varying cross-section by means of special die-rolls. Die segments 13, 16, 17 each with grooves of constant size or shape but differing from each other are spaced by segments with grooves varying from one shape to the other of the adjacent segments, thus forming a continuous groove. The rolls may have one or more grooves 18, 21 side by side, the construction of the rolls and means for clamping the segments are described in detail.
Patent GB-814296-A (GB)
Title: Improved method and means for tautening a filamentary member
IPC: H01J1/18
Filed: 1955-09-26
Abstract: 814,296. Discharge tubes. TELEFUNKEN G. m. b. H. Sept. 26, 1955 [Sept. 25, 1954], No. 27304/55 Class 39(1). During the mounting of a filamentary member, such as a discharge tube filament, which is normally held under tension by a spring arm, the said arm is constrained by a fixed abutment, allowing the filament to be attached in a slack state ; the abutment is then moved or removed, allowing the arm to tension the filament. As shown, a spring 7 is welded to the lower limb of the U-shaped member 6, Fig. 4, which is then secured to the support 3, Fig. 1. Member and spring are both bent at right-angles, so that the end of the spring can be welded to the tag 8 of the filament 5, which is slack in this position. The restraining effect of the member 6 on the spring 7 is then removed, either by bending the member back, as at 9, or by cutting part of it away. The released spring thus pulls the filament taut. In the modification of Fig. 8, a torsion spring is used, the loop portion 19 fitting over the central limb 22 of an E-shaped member, whose top limb 21 is bent over to constrain the spring downward sufficiently to allow of attachment to the filament tag 8. Afterwards it may be cut away, or bent back into the position shown, to tension the filament. If it is bent back, in the event of a filament breakage the released spring is allowed only a limited traverse (angle 23), thus preventing possible contact with other tube elements.
Patent GB-1105452-A (GB)
Title: Textile combing machine
Inventor: WALTERS RONALD
IPC: D01G19/04
Filed: 1963-07-05
Abstract: 1,105,452. Combing machines. SPERRY RAND Ltd. 1 July, 1964 [5 July, 1963], No. 27411/67. Divided out of 1,105,451. Heading D1N. In a combing machine the detaching rollers are driven by a reversible hydraulic motor 1 controlled by a valve 2 in response to the sum of a first input signal representing a continuous rotation, a second input signal representing a repeated cyclic oscillation and a third feedback signal representing the motion of the detaching rollers. The valve may comprise, see Fig. 2 not shown, a spool (16) having a threaded portion (18) co-operating with a nut (23). The spool is connected to a cam (20) co-operating with a roller (22). Nut (23) is urged against cam (20) by a spring (25) and is connected to valve sleeve (5) through a tongue and slot mechanism (24). In operation spool (16) is rotated by a shaft (6) at constant velocity while sleeve (5) is driven via gears 3, 4 from the hydraulic motor. The spool is thus axially moved by the rotation of threaded portion (18) in nut (23), the rotation of nut (23) and the movement of nut (23) by cam. (20). Thus the desired non-uniform rotation of the hydraulic motor is produced. An alternative form of valve is shown in Figs. 3 and 4, not shown.
Patent GB-729244-A (GB)
Title: Improvements in or relating to a foundation garment
IPC: A41C1/00
Filed: 1952-10-31
Abstract: 729,244. Corsets. EGLI & CO. KORSETFABRIK AKT.-GES. BRUTTISELLEN-WANGEN. Oct. 31, 1952 [Oct. 31, 1951], No. 27430/52. Class 141. A foundation garment, e.g. girdle, has a rear inside elastic supporting tape at the lower part of the garment to prevent it from riding up the body which band is connected to the garment at two points in a stretched condition. As shown, the girdle comprises a front panel 1, side panels 2, 3 and a rear panel 4, a broad elastic tape 9 being stitched at its ends and intermediate its length at the seams between the panels in such a way that the rear part 9a is in a stretched condition and the band extends obliquely upwards from its mid point. At the upper edge of the girdle there is provided a band 6 having some of its warp threads missing to prevent rolling.
Patent GB-1262008-A (GB)
Title: Improvements in and relating to electric secondary cells
IPC: H01M50/451
Filed: 1969-05-30
Abstract: 1,262,008. Lead cells. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 30 May, 1969 [30 May, 1968; 15 July, 1968 (2); 17 July, 1968; 18 July, 1968; 14 Nov., 1968], No. 27471/69. Heading H1B. [Also in Divisions C6-C7] Electrodes for a lead secondary cell are formed by rolling a lead-silver alloy to form a thin plate, e.g. 0À1-0À5 mm. thick, electrolytically etching and anodizing to produce a lead oxide layer thereon and then electrolytically reducing the lead oxide in dilute sulphuric acid to metal (see Divisions C6-C7). As shown in Fig. 13, the cell comprises a cylindrical container 20 of polystyrene with a series of radial webs 21 at its closed lower end and a rolled electrode assembly 22. The positive electrode 23 and negative electrode 24 are wound together (Fig. 15) with a spacer 25 and separator 26 between them. The separator may be formed by coating on to a non-woven fabric of polyvinyl chloride a mixture of finely divided diatomaceous earth in an emulsion of vinyl chloridevinyl acetate copolymer in acetone. The spacer is a lattice of polyethylene wires heat bonded at the cross-over points. The cell is provided with upper sealing member 27 of polystyrene and closure member 31, an outer metallic case 28. Positive lead 33 extends through member 27 to terminal 32 and negative lead 34 extends through member 27 to terminal plate 29 which is insulated by ring 30 from casing 28. A catalyst body 36, for causing combination of hydrogen formed during charging of the cell, with oxygen, is provided beneath the sealing member 27. The catalyst is a pressure moulded body of polyethylene tetrafluoride and graphite coated with palladium. The body 36 is surmounted by a moulded disc 37 of graphite and polyethylene tetrafluoride and a disc 38 of polystyrene film through which oxygen is supplied from the outside. A further disc 39 formed by coating and drying a mixture of litharge, glycerine and water, absorbs any electrolyte which might leak from the cell. The electrolyte may be a silica gel containing sulphuric acid, and sodium lignin sulphonate in amount of 0À5-1 g./l. may be added to prevent coarse crystal growth on the electrodes.
Patent GB-144553-A (GB)
Title: Improvements in animal traps
IPC: A01M23/26
Filed: 1919-11-07
Abstract: 144,553. Lane, H. Nov. 7, 1919. Animal traps.-Consists in detail improvements in the construction of spring-jaw traps. The spring 2 is inserted in an aperture formed by bending a tongue 8 out of the upright end 3 of the base-plate, and the ends 10 of the spring are riveted through the baseplate. The tongue 8 is then bent back to grip the spring, parts of the tongue being cut away to correspond with the round or flat shape of the spring. The treadplate 19 is formed of sheet metal bent to form a channel-shaped projection having vertical sides 20 for the pivot, and a catch 26 for a pawl 33. The pawl is pivoted to a bridge-piece formed by cutting away the central parts of the rolled edge 29 of the transverse plate 28. The transverse plate is attached to the base-plate by pressing out a tongue from the transverse plate and riveting it through the base-plate.
Patent GB-158389-A (GB)
Title: Improvements in change speed gears
IPC: B62M25/00
Filed: 1919-11-07
Abstract: 158,389. Ayres, W. E. M. Nov. 7,1919. Variable-speed gea.ring.-A three-speed gear of known kind suitable for motor-cycles and comprising a gear h loose on a countershaft b is fitted with a kick starter operating through that gear. Meshing with the gear h is a pinion e fast on a shaft a driven from the engine. A gear f fast on the shaft b meshes with a gear c connected by a sleeve to a driven sprocket k. The gears c, h have clutch faces adapted to mesh with like faces upon a pair of gears d, g, which slide together on the shafts a, b. The gears d, g, normally loose, are connected as required, to produce three speeds in all, by clutch members m, i upon. the shafts. The handle n of the starter is normally turned to its out-of-gear position by a spring q, upon which the ratchet p of the starter is withdrawn from engagement with the boss o of the gear h against a spring t by a curved arm r engaging a fixed pin s.
Patent GB-1516872-A (GB)
Title: Infusion and transfusion drip chambers
IPC: A61M5/14
Filed: 1975-06-30
Abstract: 1516872 Seals S HUSTED ANDERSEN [trading as TRANSCODAN SVEN HUSTED ANDERSEN] 30 June 1975 [5 March 1975 3 July 1974] 27585/75 Heading F2B [Also in Division G1] A drip chamber for parenteral infusion devices comprises two parts joined by a seal comprising a pair of sealing flanges 8, 9 defining an annular groove 20 on the upper part of, e.g. plastics material, which receives a sleeve around the edge of the lower part, annular ribs 23 and recesses 24 being formed on interengaging surfaces of one of the parts. In use, the ribs 23 are deformed into the recesses 24 to provide the desired seal. A snap connection between the parts may be formed by hooks which extend from one part and which interlock around a projection extending outwardly from the other part, inclined surfaces on the projection and the hooks, respectively, facilitating sliding of the snap connection parts for interlocking.