baber/WOPTO huggingface dataset:
Patent GB-989123-A (GB)
Title: Improvements in or relating to haymaking machines
Inventor: LILLEY NORMAN SHEPPERSON
IPC: A01D78/00
Filed: 1961-01-17
Abstract: 989,123. Haymaking machines. MASSEYFERGUSON (UNITED KINGDOM) Ltd. Jan 17, 1962 [Jan. 17, 1961], No. 1831/61. Heading A1F. In a rotary-rake-wheel type of haymaking machine wherein the rake-wheels are grounddriven and are capable of being arranged in alternative positions to perform various haymaking operations, the machine comprises a main frame 20-25, a sub-frame 30 swivellable on a pivot 31 on the main frame to occupy alternative angular settings thereto, the sub-frame having rake-wheel assemblies A, B at its ends, each assembly being slidable in the axial direction of the rake-wheels on the subframe relatively to the other, there being means for securing the assemblies and the sub-frame in their adjusted positions. The main frame comprises an A-frame 20 having extremities 22, 21, 21 connected to the upper and lower hitch-links 18, 17, 16 of a tractor. The upper extremity 22 is connected to a plate 24 by divergent bars 23, the lower parts of the A-frame limbs being connected to a further plate 24 by bars 25 which are resiliently telescopic (Fig. 2, not shown). The two plates 24 are vertically aligned and are interconnected by the pivot 31, the plates having an arcuate series of holes 34 enabling the sub-frame to be pinned thereto in an appropriate orientation. The sub-frame terminates in horizontal bearings 61 in which bars 62 are slidable the bars carrying pivoted cranks 46A, 46B at their rear ends, and the cranks carrying bearings 47 for the rake-wheels 48, 48A. The cranks are floatingly suspended from a standard on each bar 62 by spring- encircled rods 52. By forward and rearward movement of the bars 62 and by re-orientation of the sub-frame to the main frame, the rake wheels can be arranged in a single row (full lines) for side-delivery, two groups (dotted lines) for swath-turning, or as individually-operating wheels for swathspreading or tedding.
Patent GB-601437-A (GB)
Title: Improvements in and relating to means for preventing operation of door locks and latches
IPC: E05B13/00
Filed: 1946-01-19
Abstract: 601,437. Latch &c. knob guards. STEPHENSON, C. Jan. 19, 1946, No. 1896. [Class 44] To prevent a lock being operated from the inside through an adjacent window, a cover is provided comprising a box 6 secured to the door by inwardly turned flanges 7 and having a slidable lid 10 secured in its closed position by a permutation lock. The lock comprises two rotatable arms 15 each joined to a flanged disc on the inside of the lid. Each disc is normally engaged by a hook attached to the. box, but may be turned to bring a gap in the flange to register with the hooks and allow the lid to slide. The discs are retained in position by internal arms should the pivot pins 14 be cut. A stop 12 is provided to prevent complete removal of the lid.
Patent GB-764442-A (GB)
Title: Photographically pre-sensitized planographic printing plate
IPC: B41N3/03
Filed: 1955-01-21
Abstract: 764,442. Photographically presensitized plate for planographic printing. POLYCHROME CORPORATION. Jan. 21, 1955 [May 3, 1954], No. 1916/55. Class 98(2) A metallic base is mechanically grained, coated with a siliceous layer which is hardened by treatment with a solution of an alkaline earth salt, and then provided with a light-sensitive surface. In a specific example an aluminium plate is grained by sandblasting, given an alkaline etch in a solution containing sodium hydroxide and tetrasodium pyrophosphate, rinsed, desmutted in chrome acid mixture, rinsed, immersed in warm sodium silicate solution, rinsed, immersed in calcium nitrate solution, rinsed, and then silicate and calcium nitrate treatments are repeated and the plate is rinsed in acidified water, dried and sensitized on both sides with the condensation product of paraformaldehyde and paradiazodiphenylamine. Graining by rubbing with abrasive or wire brushing instead of sandblasting, and the use of sodium 2, 7 anthraquinone desulphonate instead of the diazo sensitizer. is referred to.
Patent GB-557960-A (GB)
Title: Improvements in or relating to the manufacture of stud-bolts
IPC: B21K1/44
Filed: 1943-02-06
Abstract: 557,960. Making bolts. NEWALL, A. P. Feb. 6, 1943, No. 2019. [Classes 83 (ii) and 83 (iv)] Stud bolts are made from bar stock by cold swaging the bar at points 11, Fig. 1, spaced along the bar to form neck portions, parting off blanks along the line 12 and forming screw threads on the reduced diameter ends in a thread rolling machine. In a modification the blanks have a locating portion 13, Fig. 3, of the full bar diameter, reduced ends 14 to receive the rolled threads and further reduced or waisting intermediate portions 15. Such waisting by cold swaging greatly increases the resistance to fatigue.
Patent GB-912911-A (GB)
Title: Improvements in and relating to galvanic cells
IPC: H01M50/547
Filed: 1959-01-20
Abstract: 912,911. Batteries. UNION CARBIDE CORPORATION. Jan. 20, 1959 [April 16, 1958], No. 2025/59. Addition to 912,912. Class 53. A flat dry cell has two depolarizer cakes 18, 24 enclosing an anode 20 wrapped in a separator film 19. Attached to the anode is a lead 22 provided with insulation 23. The depolarizer cakes are surrounded by a cathode collector 16 outside which is a metal foil 10, and the whole is surrounded by a wrapper 12 in which an aperture 14 is provided whereby contact may be made with the foil 10. The wrapper 12 overlaps cathode collector 16 in all directions. Fig. 5 shows a method of assembling cells in a wrapper 12 formed as a continuous length of film. The strip has apertures 14 over which are laid metal strips 10 and the flexible cathode collectors 16 which overlap the strips 10 and are marginally sealed to the wrapper. The remaining elements of each cell are then placed in position, and the wrapper folded over and its edges sealed together without the interposition of the cathode collector 16. Specification 872,878 also is referred to.
Patent GB-719319-A (GB)
Title: Improvements relating to the treatment in pickling baths of artificial filaments andfibres of proteins
IPC: D01F4/00
Filed: 1952-01-25
Abstract: In the wet spinning of globular water-insoluble proteins, the filaments are passed, prior to hardening and in the form of a roving, through one or more salt baths containing acid, the temperature of the bath or baths increasing gradually in the direction of travel of the roving and the minimum temperature of each bath being above 18 DEG C.  The baths may be caused to flow counter to the direction of the travel of the roving, the temperature at the inlet end then being greater than that at the outlet end for the liquid and the rate of flow being adjusted to give the required temperature gradient.  Where a succession of baths is used, the respective temperature ranges in the baths may increase in successive baths.  The baths may contain sodium chloride, sodium formate, sodium acetate, sodium lactate, magnesium sulphate, zinc sulphate, aluminium sulphate or aluminium chloride, or mixtures of these, and the acid may be sulphuric, hydrochloric, formic, acetic or lactic acid, or mixtures of these. Suitable compositions are specified in the examples.  The filaments may be stretched during and/or after their passage through the baths, or they may be held under tension or not in these baths.  After leaving the baths the roving may be held under tension and cut into fibres, or it may be cut while being stretched.  The filaments may also be stretched in the spinning bath or after leaving it and before entering the acidified salt baths.  In an example, a solution of commercial lactic casein is spun into an aqueous spinning bath comprising sodium sulphate and sulphuric acid, assembled into a roving and passed under tension through two baths in succession and flowing counter-current to the roving, each bath comprising an aqueous solution of sodium chloride, aluminium sulphate and sulphuric acid in varying proportions.  The temperatures for these baths are, for the first bath, 33-38 DEG C. and 40-45 DEG C. at the entrance and exit of the roving respectively, and, for the second bath, 48-55 DEG C. and 55-80 DEG C., respectively.  The roving is then cut and hardened in known manner, e.g. with formaldehyde.  U.S.A. Specification 2,338,916 is referred to.
Patent GB-916678-A (GB)
Title: Lubricants containing organophosphorus compounds
IPC: C07F9/02
Filed: 1961-01-19
Abstract: Compositions suitable as lubricants or lubricant additives are prepared by heating to 130 DEG  to 250 DEG C. for 0,5 to 30 hours a tris-phosphite or phosphorothionate of formula (XRO)3 PSn where X is bromine or chlorine, R is C3-5 alkylene and n is 0 or 1.  The products may be converted to metal salts, e.g. of Be, Mg, Ca, Sr, Ba, Zn, Cd, Hg, Ni, Cu, Ag or Au.  The products may be blended with mineral oils and greases or with synthetic lubricants, e.g. diesters, polyolefines, polyalkylene glycols, tetrahydrofuran polymer oils and silicon-containing oils and greases.ALSO:Lubricating compositions comprise a siliconcontaining oil or grease, e.g. polymethylsiloxane, and as additive a composition prepared by heating to 130 DEG  to 250 DEG C. for 0,5 to 30 hours a trisphosphite or phosphorothionate of formula (XRO)3PSn where X is bromine or chlorine, R is C3-5 alkylene and n is 0 or 1.  Sulphur, a sulphur-containing compound or a chlorinated hydrocarbon may be present as an additional reactant.  An inert atmosphere is optional and an inert solvent, e.g. a hydrocarbon, a fatty acid or a product of the reaction, may be used. The products may be concentrated by removing volatiles, e.g. by heating at 60 DEG -80 DEG C. at 5 mm. pressure to remove halogen non-phosphorus containing compounds, and then, if desired, at about 165 DEG C. at 2 mm. pressure to remove volatile phosphorus compounds. An active acidic fraction may be isolated from the residue by extraction with alkali and reacidification.  The products may be converted to metal salts, e.g. of Be, Mg, Ca, Sr, Ba, Zn, Cd, Hg, Ni, Cu, Ag or Au.ALSO:Compositions suitable as lubricants or lubricant additives (see Groups III and IV(a)) are prepared by heating to 130 to 250 DEG C. for 0.5 to 30 hours a tris-phosphite or phosphorothionate of formula (XRO)3PSn where X is bromine or chlorine, R is C3-5 alkylene and n is 0 or 1.  Sulphur, a sulphur-containing compound or a chlorinated hydrocarbon may be present as an additional reactant.  An inert atmosphere is optional and an inert solvent. e.g. a hydrocarbon, a fatty acid or a product of the reaction, may be used.  The products may be concentrated by removing volatiles, e.g. by heating at 60-80 DEG C. at 5 mm. pressure to remove halogen non-phosphorus containing compounds, and then, if desired, at about 165 DEG C. at 2 mm. pressure to remove volatile phosphorus compounds.  An active acidic fraction may be isolated from the residue by extraction with alkali and reacidification.  The products may be converted to metal salts, e.g. of Be, Mg, Ca, Sr, Ba, Zn, Cd, Hg, Ni, Cu, Ag or Au.  The volatile products when the starting material is tri(2-chloroisopropyl)phosphite include bis(2-chloro - 1 - methylethyl)-2-chloro-1-methylethylphosphonate and bis(2-chloro-1-methylethyl)isopropenylphosphonate.
Patent GB-713794-A (GB)
Title: Improvements in the manufacture of structural members
Inventor: SAUNDERS HAROLD
IPC: E04C3/04
Filed: 1952-01-28
Abstract: 713,794. Making girders, beams &c. UNITED STEEL COS., Ltd. Jan. 20, 1953 [Jan. 28, 1952], No. 2304/52. Classes 83 (2) and 83 (4) Welding by pressure.-In a method of making a beam &c. two structural e'ements 3, 4, Fig. 2, having teeth 5, 6 along one longitudinal edge are welded together at the teeth by heating and apply: ing pressure at right angles to the focus of the teeth. A machine for carrying out the method with elements 3, 4 cut from a sing'e "I" beam, compresses rollers 8 supporting the work and rol'ers 9, 18 adjustable on tables 11 to hold the elements together as they are intermittently fed over a welding anvil 16 to be engaged by a die 15. Filler strips 12 are placed over the joints which are then successively heated by gas burners 13, 14 or induction heaters &c. to welding temperature. The die 15 and anvil 16 may be slightly concave to form a fillet at the weld. In a modification the teeth may overlap and the fi'ler strip 12 omitted. Specification 498,281 is referred to.
Patent GB-395275-A (GB)
Title: Improvements in and relating to gas or other fluid pressure governors
IPC: G05D16/06
Filed: 1933-01-24
Abstract: 395,275. Pressure-regulating valves. WILLIAMS, G. A., 85, Foulden Road, Stoke Newington, London. Jan. 24, 1933, No. 2320. [Class 135.] A diaphragm-actuated weight-loaded gas governor of the kind in which the valve member may be withdrawn through the valve seat, has the valve member in the form of a double coned body with a narrow intermediate portion 10 so as to reduce the chance of sticking to a minimum. The periphery of the actuating diaphragm 4 is clamped to the casing by a screwed cap 2 and the centre against a flange 6 on the valve spindle by a loading weight engaging a screwed tail 5. The casing has a foot 8 whereby it may be secured to the floor. In a modification the seat aperture is fitted with a bush and in a further modification the casing is constructed with the inlet and outlet connections in line and the valve member is formed with an extension adapted to engage an adjustable plug to limit the distension of the diaphragm.
Patent GB-1202221-A (GB)
Title: Apparatus for discharging material
Inventor: HARE MICHAEL JOHN
IPC: G01G13/00
Filed: 1967-01-17
Abstract: 1,202,221. Automatic flow control. COURTAULDS Ltd. Jan. 16, 1968 [Jan. 17, 1967], No.2392/67. Heading G3R. A first electrical signal proportional to the weight of material in a hopper is compared with a second electrical signal which varies at a rate corresponding to a desired discharge rate so that any difference is effective to control discharge from the hopper to restore the discharge rate to the desired value, the second electrical signal being adjusted during re-filling of the hopper to cause subsequent discharge of the amount of material which would otherwise have been discharged but for re-filling. As shown, powder from a hopper 1 is supplied through an outlet 3 by a vibrator or screw feeder 2. The hopper and feeder are mounted on a weighing machine 4 associated with a pneumatic transmitter 5 so that changes in weight as the powder is discharged causes rotation of a potentiometer P 1 . Another potentiometer P 2  is driven by a motor M 1  at a speed representing a desired rate of discharge and whenever the position of potentiometer P 1  differs from that of potentiometer P 2  by more than a predetermined amount, a comparator 13 operates through an amplifier 19 and a controller 31 to switch on feeder 2 and thereby correct the amount of powder supplied. The speed of motor M 1  may be constant or, as shown, depend on the frequency of pulses from a meter 30 measuring the rate of flow of a liquid with which the powder is to be mixed so that the proportion of powder to liquid is maintained at a value determined by the setting of a pulse selector 29, switches S 1  -S 3  are moved to their other positions when the hopper is being re-filled so that feed from the hopper is stopped and, as potentiometer P 1  returns to its initial position, controller 31 causes potentiometer P 2  to return at a higher speed to a position which differs from that of potentiometer P 1  by an amount, determined by the movement of a potentiometer P 3 . corresponding to the amount of powder which would have been fed were it not for re-filling. Then, when switches S 1 -S 3  are restored to the positions shown, there is an additional feed of powder to make up for the filling interval.
Patent GB-191293-A (GB)
Title: Improvements in and relating to protective devices such as lightning arresters
IPC: H01C7/12
Filed: 1922-01-26
Abstract: 191,293. British Thomson-Houston Co., Ltd., (General Electric Co.). Jan. 26, 1922. Protective arrangements.- A protective device comprises a loose contact resistance the particles of which are formed with an inner portion the substance of which is of low electrical resistance but which is adapted to be converted by heat into a substance of high electrical resistance, and with an outer portion of a substance of high electrical resistance. A tube 10 is filled with pellets 14, the inner portions of which are of lead peroxide and the other portions of litharge, held between an electrode 15 and a spring-pressed electrode 16. A spring 18 bears against a metallic cap 20 to which the terminal 21 is secured by means of a clamp 22. The terminal 21 and clamp 22 are embedded in cement 23 and the resistance may be placed in series with a spark-gap 25. The pellets may be formed by shaking pellets of lead peroxide in litharge, or the pellets may be made of lead peroxide and a current of gradually increasing voltage passed through them to reduce by the action of heat the peroxide into litharge.
Patent GB-607075-A (GB)
Title: Improved insulation stripper
IPC: H02G1/12
Filed: 1946-01-25
Abstract: 607,075. Pliers. KANTOROWICZ, O. P. T. Jan. 25, 1946, No. 2448. [Class 61 (ii)] Insulation stripping pliers comprise a pair of pivoted levers 1, 2 and cutting knives 3 which may be adjustably connected to the levers by means of eccentrics 4 and are provided with stripping notches 6, wire cutting edges 7 and overlapped edges 8, one lever having a scale 17 of conductor sizes and the other lever a slider 9 set to limit the approach of the levers according to the size of conductor being stripped. The screw bolt connection of the levers includes a flanged threaded bush 19, a spring washer 20 held against rotation thereon by notches 22 engaging projections 21 and a screw bolt 23 locked with the bush by deforming parts of a collar 24 into grooves 25 in the end of the bolt.
Patent GB-1330245-A (GB)
Title: Mechanical handling machines
IPC: B66F9/065
Filed: 1971-01-19
Abstract: 1330245 Load handling vehicles with luffing booms; jib cranes SOC POTAIN 19 Jan 1971 [19 Jan l970] 2463/71 Headings B8B and B8H A self-propelled vehicle is provided with a boom pivoted on the chassis 13 at 14, consisting of three sections 16, 18, 23 pivotally connected at 17, 19, and provided at its outer end with a fork 12 or other load support. Double-acting hydraulic rams 22, 25 are pivotally connected between the chassis 13 and the section 18 and between the sections 18, 23, respectively, and the fork is connected to the chassis by parallel links 29, 32 which are adjustable to tilt the fork by means of a double-acting ram 41. Latch devices are provided, Figs. 6, 7 (not shown), whereby the boom section 16 may be locked selectively to the chassis or to the section 18. In a modification, Fig. 10 (not shown), the boom is mounted on a turntable on the chassis. The fork 12 may be replaced by a hook, a grab, a scoop or a jib head and hook and winch system.
Patent GB-656173-A (GB)
Title: Improvements in and relating to volume controlling amplifiers
IPC: H03G7/02
Filed: 1947-01-27
Abstract: 656,173. Automatic volume control. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 27, 1947, No. 2482. Convention date, Jan. 29, 1946. [Class 40 (iv)] [Also in Group XL (c)] An automatic gain control system comprises a main amplifier whose gain is controlled by means of an auxiliary amplifier which is fed from its output, and a second auxiliary amplifier also fed from the output of the main amplifier and which controls the gain of the first auxiliary amplifier in inverse sense. Signals from the output of the main amplifier 1, 11 are applied over a potentiometer 32 to a branch chain comprising an amplifier 30 and diode rectifier 48 provided with delay bias whereby automatic volume control potentials are applied to the valve 1 whenever the signal output exceeds a predetermined level. Signals from the output of the main amplifier are also applied over a potentiometer 23 to a further branch chain comprising an amplifier 24 and diode rectifier 38 provided with delay bias whereby control potentials are applied to the valve 30 in such a sense as to cause the gain of the first branch amplifier to increase whenever the signal output exceeds a second predetermined level. The two levels may be made equal, so that the gain of the valve 30 commences to increase at the instant at which automatic volume control is applied to the main amplifier, the output thereafter remaining substantially constant. The levels may alternatively differ, in which case the regime in which automatic volume control is effective is divided into two regions with different characteristics.
Patent GB-948412-A (GB)
Title: Rolling-joint bearings
Inventor: HODGKINS CYRIL CHARLES GEORGE
IPC: F16C11/04
Filed: 1962-01-24
Abstract: 948,412. Pivots. MORRIS MOTORS Ltd. Dec. 6, 1962 [Jan. 24, 1962], No. 2547/62. Heading E2F. A pivotal joint comprises a bearing member 7 non-rotatably located in a socket 5 and having a substantially semi-cylindrical bearing surface 8, and a pivotal thrust member 9 having a plane bearing face in rolling contact with the surface 8 within a co-axial locating bush 11. The joint includes a rubber retaining pad 14 and a two-part seal comprising a part 17 made of expanded rubber of the closed-cell type and a part 18 made of sponge rubber, the parts being united by adhesive. Specifications 763,432, and 870,489 are referred to.
Patent GB-489564-A (GB)
Title: Improvements in locks
IPC: E05B65/44
Filed: 1937-01-29
Abstract: 489,564. Box &c. fastenings. DYKES, W. U. (Lane Co., Inc.) Jan. 29, 1937, No. 2694. [Class 44] The keeper member of a hook catch is made freely movable in all directions in a plane perpendicular to the direction of engagement to counteract any relative movement of the parts to be locked. The keeper member, Fig. 7, has a yoke 37 attached to a base plate 41 slidably mounted between two plates 38, 39 rigidly attached to the lid. The yoke 37 is provided with a roller 42 and is tapered to facilitate engagement with the lock casing. When the lid is shut the keeper engages the spring-loaded hook catch 29 and can only be disengaged by pressing button 7 inwards. Through button 7 is a keyway 13 for key 14 used to operate the lock preventing movement of button 7. Fig. 10 shows the lock in unlocked position. On rotation of key 14 the plate 15 is moved about pivot 16 and detent 25 moved clear of rearwardly projecting finger 24. Further rotation of the key slides the locking plate 18 on pins 16, 19 and releases plate 15 and detent 25 moves underneath finger 24 and holds plate 18 in a new position in which the rearwardly projecting lug 23 obstructs the movement of button 7.
Patent GB-782977-A (GB)
Title: Improvements in or relating to valve seatings
IPC: F16K31/26
Filed: 1954-01-29
Abstract: 782,977. Valves. SCHAVERIEN, E. M. April 29, 1955 [Jan. 29, 1954], No. 2744/54. Class 135. A lift valve for controlling the flow of liquids is provided with a metallic seat 1 having a facing 9 of a non-corrosive material harder than the seating, the material being agate, powdered alumina, corundum or other crystalline or cryptocrystalline forms of the oxides of silicon or aluminium. The facing may be secured to the seat 1 by an adhesive or it may be provided with a groove 9d and the end of the seat, or claws thereon, may be peened over into the groove. The facing 9 may consist of an annulus of the same inner and outer dimensions as the valve seat. Alternatively it may be radiused as at 9b. The invention is particularly applicable to valves operated by ball floats and Fig. 1 shows such a valve having a removable seat 1 with a facing 9 adapted to co-operate with a resilient disc 4 on a cylindrical valve member 3 operated by the usual float lever 6.