baber/WOPTO huggingface dataset:
Patent GB-487759-A (GB)
Title: A multiple rolling mill
IPC: B21B13/14
Filed: 1938-01-26
Abstract: 487,759. Rolling. KRUPP GRUSONWERK AKT.-GES., F. Jan. 26, 1938, Nos. 2534 and 2535. Convention dates, Feb. 10, 1937 and June 30, 1937. [Class 83 (iv)] Four support rollers 3, 4, 7, 8, are provided for each working roll 1 of a rolling mill and the centres of the contacting rollers, e.g. 3, 7 and the roll 1 all lie on the lines of pressure in straight lines. Pass adjustment is provided by rotating the eccentric rings 13, Fig. 2 (not shown), of all four outer rollers 8 &c. by worm drives either individually or by hand or coupled together and driven by electric motor and worms and through chain and clutch for the bottom outer support rollers. The bearing blocks 25, 26 of the upper and lower large rollers are held in position in the frames by cross beams 32, 33 which may be swung out on an end hinge pin 37, Fig. 4 (not shown), to facilitate removal. The small support rollers 3, 4 &c. are mounted in top and bottom bearing blocks 41, 45 which are vertically displaceable in recesses in the large blocks 25, 26 while the working rolls 1, 2 are held by straps 50, 51 urged vertically by springs 52 into recesses in the blocks 41, 45. Hydraulic rams 29 urge apart the bearing blocks 25, 26 and hold the top block 25 against the screw downs 30 and the bottom against distance pieces 56 resting on the base. The whole roll and support roller unit and their bearing blocks can be traversed bodily out of the roll frame, on wheels 53 on racks 54 when hydraulic or electric lifters 55 allow removal of the distance pieces 56 and so permit the wheels to be lowered on their racks.
Patent GB-310100-A (GB)
Title: Improvements relating to plunger pumps
IPC: F04B3/00
Filed: 1928-01-26
Abstract: 310,100. Hayhurst, W. Jan. 26, 1928. No Patent granted (Sealing fee not paid). Single-acting suction-valveless piston pumps.-A pump for acids &c. comprises a cylinder a containing two co-axial pistons d, e which control the suction and delivery ports b, c. The pistons are positively actuated by cams, so that when the pistons are both at the top of their stroke, the piston e moves downward, drawing in liquid through the port b. The pistons then move together till the piston d has covered the port b and the piston e has uncovered the port c when the piston e stops and the liquid is expelled through the port c by the continued downward movement of the upper piston. The pistons then return together to their upper positions. Grooves r and s are fitted to collect any liquid leaking past the piston. Specifications 17836/08, 129,278, and 282,873 and 285,391 (as open to inspection under Sect. 91 of the Acts) are referred to.
Patent GB-898950-A (GB)
Title: Improvements in or relating to missile fuses
Inventor: STURROCK DONALD GEORGE
IPC: F42C9/16
Filed: 1959-01-24
Abstract: 898,950. Ammunition fuzes. GRAVINER MANUFACTURING CO. Ltd., and WILKINSON SWORD Ltd. April 21, 1960 [Jan. 24, 1959], No. 2666/59. Class 9(1). A percussion fuze provided with a selfdestruction device comprises a firing pin 12 with a hollow conical head held away from a rotatable shutter 17 carrying ignition elements by a magnetised disc 13 polarised along a diameter as in Specification 898,949. A pin 19 carried by the shutter 17 abuts an arming bolt 18 to prevent rotation of the shutter to the armed position. Bolt 18 is slotted to receive the head of the selfdestruction firing pin 20 and hold it at safe until a missile furnished with the fuze is inserted in the launcher barrel. Prior to insertion in the barrel, a safety cap 25 bears against a ball 28 to hold the bolt 18 in the locking position. After removal of the cap 25, the bolt moves to a position in which the pin 20 is in a central portion of the slot 18a and free to retract against the thrust of its spring 21. If the cap 25 is removed externally of the launcher, the bolt moves outwards to a position in which the pin 20 is held by the inner end of slot 18a. When the missile leaves the barrel, the pin 20, due to inertia sets back and strikes a percussion cap 22, which ignites a delay (not shown). The pin 19 passes through a groove 18b in the bolt as the shutter 17 is rotated by its spring 27 and a primer cap 15 is brought into alignment with the pin 12. The fuze is then armed for operation on impact, when the inertia of a ball 14 bearing on the pin 12 overcomes the magnetic force and drives the pin against the cap 15, the flash from which passes through a passage 16 to a relay 10 and thence to a booster 11. Should impact not occur within a given time, the delay fires the cap 15 and hence brings about self-destruction of the missile.
Patent GB-633936-A (GB)
Title: Improvements in or relating to photographic materials
IPC: G03C1/76
Filed: 1948-01-30
Abstract: Copolymers of methyl acrylate with acrylic acid or maleic anhydride which contain free carboxyl groups and which may either be soluble or insoluble in photographic developer or ammonia, those with a higher proportion of the acid or anhydride being more soluble, are made by (1) heating and stirring a mixture of methyl acrylate, benzoyl peroxide and maleic anhydride until the mass becomes solid, cooling, dissolving in aqueous ammonia, precipitating by hydrochloric acid, washing with water and drying; (2) dissolving maleic anhydride, methyl acrylate and sodium persulphate in aqueous ethanol, heating until the solution becomes viscous, pouring into water, dissolving the precipitate in ammonia, re-precipitating with hydrochloric acid, washing and drying; (3) as in (2) but with acrylic acid replacing maleic anhydride.  The copolymers are soluble in alcohol or alcohol-ethyl acetate mixtures and may be coated, if desired when incorporating dyes, pigments, colour formers or plasticizers, to form photographic layers or may be used to increase the viscosity of gelatino-silver halide emulsions (see Group XX).  Specifications 512,542, 535,341, 542,904, 543,290, 550,775, 551,117, 575,512, 580,511 and 14656/39 (as open to inspection under Sect. 91) are referred to.
Patent GB-510334-A (GB)
Title: Improvements in and relating to machines for raising, conveying, dewatering or treating sand and gravel and the like
IPC: E02F3/24
Filed: 1938-01-29
Abstract: 510,334. Endless-belt elevators; pulleys; gravity-separation apparatus. BRAHAM, W. E. Jan. 29, 1938, No. 2881. [Class 78 (i)] [Also in Groups I and XXIV] A machine for conveying, dewatering &c. sand, gravel &c. comprises buckets, flights, scrapers &c. mounted on one or more flat flexible belts by a transverse clamping bar attached to each bucket &c. by bolts which do not pass through the material of the belting. In Figs. 1 and 2, flights 10 are secured to spaced reinforced rubber belts 11 by angle T, or other irons 12 and bars 14 connected by bolts 13 adjacent the edges of the belts; the bars 14 are extended to engage driving sprockets 17, and the extended ends and the sprocket teeth may have renewable wearing tips as 15. Some bars 14, e.g., alternate bars, may be secured to plain bars 16 without flights. Slots 20 adjacent the sprocket teeth prevent accumulation of sand. One or more driving sprockets may be provided between the belts 11. In Figs. 3 and 4, the belts 31 engage the flanges of the sprockets 37 which have renewable teeth 39 and are wider than the belts; clamping bars 34 engage grooves in the flanges. Cleats 41 retain the clamping bars laterally. A single belt may be used and approximate in width to the flights &c. The belts may have mouldings &c. to facilitate positioning the flights, clamping bars &c. and may be protected by covering material &c.
Patent GB-411589-A (GB)
Title: Improvements in and relating to electric switches for radio telegraphy and telephony
IPC: H01H21/22
Filed: 1933-01-30
Abstract: 411,589. Hand actuating-devices for switches. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Germany. Jan. 30, 1933, No. 2924. Convention date, Jan. 29, 1932. [Class 38 (v).] In a switch for a wireless set in which rotation of a shaft 1 into different positions effects the change-over to different wave ranges as well as other operations, the shaft has fixed to it a disc 5 a slot in which engages a projection 10 clamped on to the operating lever 7 of an ordinary tumbler switch 6, the latter then serving to make and break the main circuit for the set. The arrangement is such that the tumbler switch remains in the on position while the other switching operations are effected.
Patent GB-717854-A (GB)
Title: Improvements in or relating to methods of and machines for moulding or shaping glassarticles
IPC: C03B11/02
Filed: 1952-02-05
Abstract: 717,854. Glass manufacture. BRITISH HEAT RESISTING GLASS CO., Ltd., and HANN, D. G. Feb. 5, 1953, [Feb. 5, 1952.] No. 2980/52. Class 56. In the shaping of glass articles by pressing, the gob is guided into a mould body by a gobembracing and positioning member which is separate from the mould body and is withdrawn from the mould body, as mould and member move in unison towards the pressing position, by a relative vertical movement between the member and the mould body, this withdrawal being followed by a lateral separation whereby the pressing die may descend, without obstruction, into the mould body. In Fig. 1, the mould bodies 89 are mounted in groups, each group being rotatable about a vertical column 133 and the groups being rotated collectively around a central axis, as described in Specification 717,853. The gob-positioner 130 is funnel-shaped and is mounted on an arm 135 adjustable in all directions on, or with, a sleeve 154 vertically slidable and rotatable on the column 133. A sleeve 155 encircles the lower part of the sleeve 154 and is coupled by a key 161 on a bracket 160 on the sleeve, with one of a number of vertical slots in a ring 162 which is concentric with the column 133 and rotates' with the sub-table 70 carrying a group of mould bodies 89. The key 160 is raised out of its slot to interrupt the drive between the rotating moulds and the guide 130, when the guide has been raised sufficiently to clear the top of the mould, this being effected by a stationary cam track 136 engaged by a follower 137 on a lug 166 on the bracket 160. The cam track may be designed to produce a uniform rate of rise, or the rate of rise may increase progressively. The guide is returned to its initial position by a toothed rack 168, which is actuated by a hydraulic ram controlled as described in Specification 717,853, operating the pinion 139, which is fast on the sleeve 155, through an idler wheel. The guide is thus cleared from the mould before the descent of the die 100. A hand lever 169 operates a thrust rod 168a engaged under the pinion 139 to permit the guide to be raised manually. The upward thrust of the sleeve 155 is transmitted to the sleeve 154 by an arm 156 on the sleeve 155 abutting against an arm 157 on the sleeve 154, the two arms being coupled, in a selected angular relationship, by an eccentric adjusting and clamping means 193. The descent of the guide 130 into the mould, when permitted by registration of the key 161 and a slot in the ring 162, is cushioned by an oil-filled dashpot in an axial cavity at the upper end of the column 133. The guide is replaceably secured on the arm 135 by a bolt 193a; is vertically adjustable by the screw 182, and the arm 135 is adjustable along its own axis by manipulation of screws 180, 181, which are threaded in oppositely disposed lugs on a cam-like rocking lever pivoted to the arm and engaging a fulcrum cavity in a guide block, for the arm 135, carried on the sleeve 154.
Patent GB-1377081-A (GB)
Title: Single control mixer tap
IPC: F16K11/078
Filed: 1972-04-20
Abstract: 1377081 Valves H WATTS 20 April 1972 [23 Jan 1971] 3031/71 Heading F2V A mixing tap has a ported sleeve 3 which is rotated to alter the ratio of hot to cold water from passages 4, 5 flowing to an outlet 16 and is displaced axially to vary the total volume of flow, each passage containing an annular sealing ring 21 which bears against the sleeve and may be renewed by removal of a plug 25 and secondary sealing means 28. The plugs 25 have a screw threaded adjustment with the valve housing to permit the friction between the seals 21, which may be of rubber, and the sleeve 3 which may be of Delrin (Registered Trade Mark) to be increased sufficiently to prevent movement of the sleeve by hydraulic forces. A pin 33 which is a press fit in the sleeve and a free fit in a spindle 32 allows the sleeve to centre itself. The spindle and sleeve are moved axially by pivotal movement of a hand lever 31 in a slot 40 of a cap 36 and are rotated by turning the lever and cap about a spigot 43. Specification 1,377,082 is referred to.
Patent GB-546394-A (GB)
Title: Improvements in aircraft alighting gear
IPC: B64C25/50
Filed: 1941-03-07
Abstract: 546,394. Shock-absorbers. DOWTY EQUIPMENT, Ltd., and BOUND, R. H. March 7, 1941, No. 3145. [Class 108 (iii)] [Also in Group XXXIII] For damping oscillations in an aircraft landing element mounted for castoring or steering movement, two opposed driving- cams fixed in spaced axial relationship and rotatable with the landing element cause axial movement of a third, non-rotatable cam provided with restricted passages through which oil is forced as the cam moves as a result of the castoring or steering movement. The driving-cams are carried by the telescopically moving part of a shock absorber which has a separate centring cam which comes into operation when the shock absorber is completely extended. The landing element is carried by a member 20 secured to the lower end of a tube 4 which can slide and rotate in a fixed outer tube 2. Secured to the upper end of the tube 2 is an inner tube 6 having an airspace 12 separated by a floating piston 11 from the oil in the lower part of the tube 4. Oil flows through passages 21, 22, 23, to damp the telescoping movements, a clack valve 7 having holes smaller than the passages 22 ensuring greater damping as the parts extend. Co-operating cams 16, 17 on the tubes 6, 4 ensure centring of the landing element when the parts are fully extended but the cams are separated when the aircraft is on the ground. The tube 6 has a narrower extension 8 splined to a sleeve 10, Fig. 2 carrying a cam member 9 which co-operates with two separated cam members 25, 26 secured to a barrel 27 and to the tube 4. The tube 10 and cam 9 are a sliding fit respectively within the cam members 25, 26 and the barrel 27, the cam 9 and tube 10 being displaced axially as the tube 4 rotates. Restricted passages 28 through the cam 9, through which oil flows as the cam 9 is displaced, damp any oscillatory movements of the landing element. The tube 2 may be mounted in a bracket 3 pivoted to the aircraft to enable the landing element to be retracted. Specification 544,779, [Group XXXIII], is referred to in the Provisional Specification.
Patent GB-696021-A (GB)
Title: Improvements in or relating to the manufacture of inorganic salts
Inventor: MCLEISH NANCY
IPC: C01G43/06
Filed: 1942-03-13
Abstract: Uranium tetrafluoride is produced by treating a solution of an oxygen-containing uranium compound, e.g. sodium uranate, or uranyl sulphate, chloride, or acetate with hydrochloric or sulphuric acid, and a reducing agent, e.g. solid stannous chloride, or zinc, at say 90-100 DEG C, and treating the resultant uranous salt solution with a metal fluoride, or hydrogen fluoride, say 30 per cent hydrofluoric acid in 100 per cent excess, to precipitate the tetrafluoride 25-100 per cent excess hydrochloric or sulphuric acid over that necessary for the reduction may be used.  The fluoride-precipitating agent should be added rapidly at or near the boiling point of the solution. The uranium tetrafluoride is washed, filtered and dried, first at 100-120 DEG C, then at 350-450 DEG C in vacuo or in an inert gas.  It may be reacted with fluorine to yield the hexa-fluoride.
Patent GB-266326-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K1/28
Filed: 1927-02-05
Abstract: 266,326. British Thomson-Houston Co., Ltd., (Assignees of Treene, W. H.). Feb. 20, 1926, [Convention date]. Alternating - current motors; cores. -The slotted core of a dynamo-electric machine is built up of a number of similar laminations having slot openings offset relatively to the main portions of the slots, and some of the laminations are reversed relatively to the others so that the effect of a partially closed slot is obtained. As shown applied to a synchronous motor. the field poles 6 are provided with slots 12 which receive the conductors 10 of a squirrelcage starting winding. The slots are arranged symmetrically with regard to the centre lines of the poles, but those in the pole-faces have openings 14 displaced to one side. Fig. 4 shows alternate laminations reversed relatively to each other. Specification 3101/94 is referred to According to the Specification as open to inspection under Sect. 91 (3) (a) the field poles may be built up of laminations stacked ali the same way- This subject-matter does not appear in the Specification as accepted.
Patent GB-1000497-A (GB)
Title: Improvements in or relating to emergency control valves for power brake systems for motor vehicles fitted with trailers
IPC: B60T13/40
Filed: 1964-01-27
Abstract: 1,000,497. Brake control valves; valves. PATONS BRAKE REPLACEMENTS PROPRIETARY Ltd. Jan. 27, 1964 [Feb. 8, 1963], No. 3426/64. Headings F2F and F2V. An emergency control valve for compressed air power brake systems for motor vehicles fitted with trailers comprises a hollow body portion 2 having an air inlet port 8 and a plurality of air outlet ports 19, 21, an inlet valve 14 for controlling the passage of compressed air from the inlet to the outlets, a spring influenced diaphragm 6 located between the inlet and outlet ports and carrying a displaceable valve seating 26, the spring 18 associated with the diaphragm being adapted to urge the seating 26 towards the inlet valve 14 against the influence of in-flowing air, and manually adjustable venting means 31 having a seating 36 which is also engageable by the inlet valve 14. As shown, the inlet of the valve is connected to a compressed air storage tank 11 (or pump) and the outlets are connected by pipes 22, 23 respectively to the trailer braking system and a main control valve unit 24 on the vehicle. The latter acting to apply the trailer brakes on actuation of the driver's valve 46 to apply the vehicle brakes. When the air compressor is started pressure acts on the diaphragm 6 and causes it to move upwardly until the upper end of the valve seat 26 abuts stop 38, the inlet valve 14 closing the venting means 31, so that the braking system of the trailer is primed. The brakes will then work normally. However, if the air line 22 breaks compressed air in the line 22 will escape and the diaphragm 6 and valve seat 26 will move downwardly until the latter engages the inlet valve 14. The pressure in the tank 11 will be reduced but will be sufficient for emergency braking of the vehicle. Preferably, a breakaway valve applies the trailer brakes. If the driver now moves a lever 41 to move the venting means upwardly by the cable 39, the pressure in the tank may rise to its normal value without opening the inlet valve.
Patent GB-1454615-A (GB)
Title: Integrated circuits
IPC: H01L27/02
Filed: 1974-01-25
Abstract: 1454615 Semiconductor devices TEXAS INSTRUMENTS Ltd and D COLMAN 25 Jan 1974 03480/74 Heading H1K An integrated circuit includes a junction gate field effect transistor having its channel formed in an epitaxial layer 2 and its gate electrode by the substrate 1, of the opposite conductivity type to the layer 2, one terminal 8 of the voltage supply to the circuit being connected to the components of the IC via the channel, the other terminal being connected to the substrate. Such an arrangement enables the channel to be pinched off if voltages above a desired level are applied between terminal 8 and the substrate, and is particularly useful where voltage spikes occur in the supply, e.g. in automobile electrical systems. In the embodiment shown, supply terminal 8 is connected to the source region 4, the current to the components, e.g. resistor 11 and bipolar transistor 12, being taken from conductor 10 connected to the drain region 6. A further gate electrode 5 may be connected to the substrate via isolation region 3 through overlap 7. The substrate may be of silicon, the regions being formed by diffusion or ion implantation.
Patent GB-1219568-A (GB)
Title: Improvements in or relating to ship's mooring devices
Inventor: GORE GEORGE LESLIE
IPC: B63B21/06
Filed: 1967-01-24
Abstract: 1,219,568. Rotary bollards. G. L. GORE. 24 April, 1968 [24 Jan., 1967], No. 3497/67 Heading B8B. A rotary bollard for a ship's mooring rope 3 comprises a horn shaped part 1 mounted on a shaft 2 for rotation between one position (shown) in which the rope 3 is anchored and a second position in which the rope slides off the part 1 due to tension in the rope, the horn part being lockable in the rope anchoring position by a releasable locking device. The horn part 1 is locked in a position such that the tip portion la thereof is not aligned with the direction of tension in the rope 3, whereby upon releasing the lock, the tension will rotate the horn part into the second position. The locking device comprises a bell-crank lever weighted into the disengaging position and having a cylindrical ball race end engageable in one of a plurality of recesses 14 in the base of the horn part 1, the lever being locked in engagement by a wedge placed between the lever and a stand to which the lever is pivoted. The horn part 1 is mounted on the shaft 2 via either a ball and roller race arrangement as shown, or a sleeve and washer bearing arrangement, Fig. 5 (not shown). In another embodiment the bollard is geardriven by an hydraulic motor which also acts as a brake, however a separate brake band may be directly applied to the horn part. In a further embodiment the horn part is mounted on the shaft which is rotatable in a base-plate.
Patent GB-1010481-A (GB)
Title: Improvements relating to lawn mowers
IPC: A01D34/74
Filed: 1962-02-01
Abstract: 1,010,481. Rotary-scythe mowers. H. C. WEBB & CO. Ltd. Feb. 1, 1963 [Feb. 1, 1962], No. 3829/62. Heading A1F. In a rotary-scythe mower the motor 8 and the rotary knife (Fig. 3, not shown) are bodily adjustable vertically relatively to the wheeled body 34 which shrouds the cutter. As shown the rotary knife is mounted on the lower end of the motor spindle 24. The motor-housing is secured to a sleeve 7 which is a sliding fit in a collar 12 integral with the body 34. The sleeve has helical slots 13 which are entered by bolts 14, 15 passing through the collar 12, the bolt 15 carrying a locking segment which can be tightened against the inner wall of the sleeve by rotation of a handle 22 on the outer end of the bolt. A handle 4 on the sleeve enables it to be rotated when the locking member is loosened. A fixed scale 33 indicates the cutting height.
Patent GB-918698-A (GB)
Title: Machine for manufacturing a pleated web
IPC: D06J1/06
Filed: 1960-02-03
Abstract: 918,698. Pleating. SVENSKA FLAKTFABRIKEN A.B. Feb. 3, 1960 [Feb. 4, 1959], . No. 3830/60. Class 141. In a pleating machine comprising an axle 2 from which the web to be pleated is unwound, a magazine 4 for receiving the pleated web, and folding mechanism arranged between the axle and the magazine, the folding mechanism comprises two pivotally mounted plates 6a, 6b which are arranged on opposite sides of the magazine and are caused to move alternately. from a substantially vertical position to a horizontal position above the magazine, thereby catching and folding the web. The axles 7, 8 carrying the plates are biased towards their inner positions with the plates upright by means of springs 12, 13. Actuation of the folding mechanism is effected by a reciprocating frame 16 having studs (not shown) which contact the ends of the axles 7, 8 to move them alternately towards their outer positions, and rods 19, 20 which contact levers 21, 22 on the axles to pivot the plates 6a, 6b to their horizontal positions.