baber/WOPTO huggingface dataset:
Patent GB-121439-A (GB)
Title: Improvements in Methods of and Apparatus for Manufacturing Pneumatic Tire Casings.
Inventor: HOPKINSON ERNEST
IPC: B29D30/06
Filed: 1918-07-30
Abstract: 121,439. Hopkinson, E. July 30, 1918. Vulcanizing.-In the manufacture of tyre casings, the casing is built upon an expansible wall 3 carried by a rigid core 2, fluid being admitted through a passage 4 to expand and shape the casing, and after setting, the casing is removed and vulcanized under direct internal fluid pressure. The wall 3 is secured to the core by members 6 engaging beads, such members 6 being clamped together with an interposed lead seal 8 by channelled members 9 locked by a wedge 10. During shaping, the casing is confined by a 2-part mould 11 secured by clamps 14 and provided with a shaping-surface 13. The wall 3 may be expanded by air or water pressure. The pressure fluid for the vulcanizing operation may consist of carbon dioxide, ammonia, nitrogen, or steam.
Patent GB-1381595-A (GB)
Title: Games
IPC: G07F17/32
Filed: 1971-04-30
Abstract: 1381595 Game apparatus D RENOWDEN and J BENGHIAT [trading as HAMILTON] 13 July 1972 [30 April 1971] 12518/71 Heading A6H [Also in Division G4] A gaming installation comprises a plurality of player positions each comprising means for displaying a variable set of characters, means for presetting the set of characters displayed at each position at the beginning of a game, which sets are maintained throughout the game as a basis therefor, and means for marking individual characters at a position during a game. In the embodiment shown the gaming installation comprises a plurality playing positions 1 each having four display windows 4 and respective coin mechanism 3 and connected to a "dealer's" unit BU, Fig. 3. Located behind each window is a respective reel (21) (Fig. 2, not shown) having symbols, e.g. cards or numbers around its periphery and rotatable by a motor RM when released by a respective latch solenoid LS1 to LS4. To play a game the "dealer" closes switches SWA, SWB and the player inserts a coin energizing relay CRL via coin switch CSW, the relay self-holding via switches CRL 1 and SWA, and a lamp PL being illuminated to indicate the deposition of a coin. Switches SWC, SWD are then closed energizing reel motor RM and enabling player controlled switches PBP2 and PBP3 so that the player may energize latch solenoids LS2, LS3 to select which numbers or cards are displayed on the two centre reels. Switches SWC, SWD are then opened and switch PbE closed by the "dealer" for an arbritary time to effect rotation of the other two reels and the random selection of two further symbols. The "dealer" then draws a series of numbered balls or cards from a blower or other shuffling device and if these correspond to those displayed the player by covering the display window or illuminating a lamp associated with the window shows that the card or number has been called. The displays at two or more windows may alternatively be associated with a common symbol carrying flexible band.
Patent GB-650001-A (GB)
Title: Improvements in normally tacky and pressure-sensitive adhesive compositions, products and methods of preparing the same
IPC: C09J7/02
Filed: 1948-05-06
Abstract: A pressure-sensitive adhesive consists of a major portion of normally tacky and pressure-sensitive adhesive, e.g. a mixture of a cohesive elastomer and a resinous material, with a minor portion, e.g. up to 15 per cent of the weight of the elastomer of a hard oil-soluble resin unreacted with the elastomer and possessing borderline incompatibility therewith, i.e. a tendency of the resin to cloud a transparent film of the elastomer when suspended therein in large proportions.  The elastomer may be crude rubber, butadiene-styrene copolymer, polyisobutylene, polymethylpentadiene, polyisoprene, or poly-2-ethyl hexyl acrylate, and may be mixed with the glyceride of hydrogenated rosin, dehydrogenated rosin, or poly-b -pinene to form the normal adhesive.  The incompatible resin may be a maleic modified rosin, rosin ester, or hydrogenated rosin ester, oil-soluble phenol-aldehyde resin such as p-tertiary amyl phenol formaldehyde, p-tertiary butyl phenol formaldehyde, or p-tertiary octyl phenol formaldehyde, phenol-modified rosin, phenol - modified coumarone - indene resin, methyl styrene compounds, alkylated melamine or urea-formaldehyde resin, chlorinated hydrocarbons or metallic resinates.ALSO:A pressure-sensitive adhesive consists of a major portion of normally tacky and pressure-sensitive adhesive, e.g. a mixture of a cohesive elastomer and a resinous material, with a minor portion, e.g. up to 15 per cent of the weight of the elastomer of a hard oil-soluble resin unreacted with the elastomer and possessing borderline incompatibility therewith, i.e. a tendency of the resin to cloud a transparent film of the elastomer when suspended therein in large proportions.  The elastomer may be crude rubber, butadiene-styrene copolymer, polyisobutylene, polymethylpentadiene, polyisoprene, or poly-2-ethyl hexyl acrylate, and may be mixed with the glyceride of hydrogenated rosin, dehydrogenated rosin, or poly-b pinene to form the normal adhesive.  The incompatible resin may be a maleic modified rosin, rosin ester or hydrogenated rosin ester, oil-soluble phenolaldehyde resin such as p-tertiary amyl phenol formaldehyde, p-tertiary butyl phenol formaldehyde, or p-tertiary octyl phenol formaldehyde, phenol - modified rosin, phenol - modified coumarone-indene resin, methyl styrene compounds, alkylated melamine or urea-formaldehyde resin, chlorinated hydrocarbons, or metallic resinates.
Patent GB-1433104-A (GB)
Title: Disc brake
IPC: F16D55/22
Filed: 1974-03-21
Abstract: 1433104 Spot-type disc brakes; brake pads; preventing rattle SOC ANON DBA 21 March 1974 [19 April 1973] 12609/74 Heading F2E A disc brake comprises a torque taking member 10 in which is anchored at least one pad 14 which can be extracted radially outwards through an aperture 20 in the torque taking member 10; the aperture 20 is formed with two axial edges 22, 24 having respective axial grooves 34, 36 in which are received opposite ends of an anti-rattle spring 38 which urges the pad 14 on to projections 26 on the member 10. The distance between the ends of the spring 38 in its free condition is greater than the distance between the bottoms of the grooves 34, 36 and when the spring 38 is compressed into the grooves 34, 36 it can occupy two stable positions-in the first stable position shown in chain lines in Fig. 1, the spring is convex and nearer the exterior of the brake during mounting of the spring and in the second stable position the spring is concave and nearer the interior of the brake to urge the pad 14 on to projection 26. In the embodiment illustrated the member 10 is a caliper incorporating a fluid pressure actuator to operate the pad 14; a second pad 16 is operated by a second actuator if the caliper is fixed or if the caliper is axially slidable on a fixed support by a reaction element. In these embodiments the spring acts on both pads 14, 16. In a further embodiment with one actuator the torque taking member is fired and supports at least one pad and there is a slidable caliper. The spring 38 as shown is formed from a metal sheet and has a loop 44 for handling purposes. Two lugs 46 enter slots 48 in edges 22, 24 to hold the spring 38 axially relative to the aperture 20. The upper edges 40, 42 of the pads have a straight surface 50 extended by surfaces 52 approximately parallel to the adjacent leg of the spring 38 when the latter is in its second position. To position the spring 38 one end is inserted into one groove 34 or 36 to abut on the adjacent surface 52 on each pad or on the inner edge of the groove. The other end of the spring 38 is then inserted into the other groove 34 or 36 and the loop 44 is pressed down.
Patent GB-306761-A (GB)
Title: Improvements in or relating to hose couplings and the like
IPC: F16L33/22
Filed: 1928-04-30
Abstract: 306,761. Brereton, A. S., and British Petroleum Co., Ltd. April 30, 1928. Joints with longitudinal pressure and with yielding outer part compressed.-A hose is secured to the spigot 2 of a coupling member 1 by means of a split sleeve 6 which is adapted to be contracted onto the end of the hose by a coupling member so as to press the end of the hose against a seating washer 10 therein. The sleeve 6 is provided with gripping perforations 8 and the inner end 7 thereof is bevelled to coact with a like surface 3 on the coupling member or on an internal reducing washer 17, while the outer end coacts with a conical flange on the nut 11 between which and the split sleeve a reducing washer 16 may be interposed. In a modification the outer end of the split sleeve is slightly splayed while the other end is closed in.
Patent GB-1105136-A (GB)
Title: Vaccines comprising living protozoa of the genus theileria
Inventor: HULLIGER LOTTE
IPC: C12N1/10
Filed: 1964-03-25
Abstract: A method for the propagation of protozoa of the genus Theileria comprises the propagation of host cells containing the agamonts of the protozoa in association with a concurrent propagation of a tissue culture cell line not infectible with the protozoa, as a mixed culture carried out in an aqueous nutrient medium.  The tissue culture cell line may be the baby hamster kidney cell line BHK 21. The host cells may be blood leucocytes from an infected calf in the case of T. annulata or cells from the spleen or lymph nodes of an infected steer in the case of T. parva.  A typical culture medium comprises a mixture of borine serum, tryptose phosphate broth and Eagle's basal medium, preferably with an increased aminoacid and vitamin content.  The mixed culture may be sub-cultured by the monolayer culture technique. The mixed culture may be administered to cattle to render them immune to theileriasis.ALSO:A vaccine comprises living protozoa of the germs Theileria which have been propagated in host cells concurrently with a tissue culture cell line not infectible with the protozoa as a mixed culture in an aqueous nutrient medium.  The host cells may be blood leucocytes from an infected calf in the case of T. annulata or cells from the spleen of lymph nodes of an infected steer in the case of T. parva.  The tissue culture cell line may be baby hamster kidney cells BHK 21, which have been trypsinised. The culture medium contains the usual nutrients required in the p  propagation of animal cells, e.g. it may comprise a mixture of bovine serum, tryptose phosphate broth and Eagle's basal medium, preferably with an increased amino-acid and vitamin content. The mixed culture may be sub-cultured by the monolayer culture technique.  The protozoa is propagated by incubation of the mixed culture at 37-40 DEG C. and by successive transfers of the propagated mixed cell culture into a new culture medium, e.g. every third or fourth day.  The mixed tissue culture obtained by sub-culturing may be centrifuged and resuspended.  The suspension may be used as a vaccine for administration to cattle to render them immune to theileriasis.
Patent GB-844713-A (GB)
Title: Improvements in or relating to hydro-kinetic transmission apparatus
Inventor: GATISS ALBERT LESLIE
IPC: F16H61/64
Filed: 1958-04-22
Abstract: 844,713. Hydraulic transmission of power. BROCKHOUSE ENGINEERING Ltd. April 20, 1959 [April 22, 1958], No. 12654/58. Class 69 (2). An hydraulic coupling or converter 10 comprises a control valve 36 which (a) in a working position, connects a pump 14 to an emptying valve 45 maintained closed by the pump pressure, and to the opening face 27 of a pressure-reducing and filling valve 17 to maintain this valve open and supply liquid at reduced pressure to the hydraulic circuit of the coupling or converter; and (b) in a discharge position, relieves the pressure on the emptying valve to permit it to open and empty the hydraulic circuit, and connects the pump to the closing face 26 of the pressure-reducing valve to close or substantially close this valve and cut off the supply to the hydraulic circuit. The pump 14 is driven from the impeller 11 and delivers liquid through a passage 30 and an oil filter 29 to a space 31 between the opening face 27 on a piston 24 and the face 32 of a valve disc 25 of the pressure-reducing valve 17, the disc being connected to the piston by a hollow stem 23. The valve is urged to the open position by the pressure in the hydraulic circuit acting on the lower face of the disc 25 and the pump pressure acting on the opening face 27 of the piston, and is urged to the closed position by the pump pressure acting on the face 32 of the valve disc, the pressure of the hydraulic circuit supplied through the bore of the stem 23 to the closing face 26, and a spring 33. In the position of equilibrium, the pressure within the hydraulic circuit is less than the pump pressure and the valve disc 25 is partially closed resulting in a pressure drop across the disc as the liquid flows to the hydraulic circuit through the passage 20. The control valve 36, in the working position, connects the full pump pressure in the valve housing through pipes 43, 44 to ports 51 in the emptying valve 45 to displace pistons 52 therein to positions closing discharge ports 49, the valve 17 then being in its equilibrium position supplying liquid at reduced pressure to the hydraulic circuit. When the control valve is moved to the discharge position by operating mechanism 55, the pressure from the pump is supplied through a passage 41 to the face 26 of the piston 24 to move the valve disc 25 downwardly and close the passage 20; a small flow, however, may be supplied to the hydraulic circuit through the hollow stem and serves to lubricate the moving parts of the converter or, alternatively, a oneway valve may be incorporated in the hollow stem to prevent this flow. Simultaneously, a relief line leading to the reservoir 50 is connected to the pipes 43, 44 to relieve the pressure on the pistons 52 of the emptying valves which are thus free to move to permit the liquid in the hydraulic circuit to discharge through ports 49 communicating with the reservoir. Bleed holes 54 relieve the centrifugal force acting on the liquid in the pipes 44. Specification 702,840 is referred to.
Patent GB-828994-A (GB)
Title: Machine for manufacturing shoes and like articles of plastic material
IPC: B29C45/06
Filed: 1958-04-22
Abstract: 828,994. Moulding footwear &c. BRITISH BATA SHOE CO. Ltd. April 22, 1958 [May 7, 1957], No. 12676/58. Class 87(2). A machine for moulding plastic articles such as footwear and adapted to work in combination with apparatus for supplying molten plastic material to a mould and incorporating an injection nozzle, comprises a carriage 3 on which is mounted a rotatable platform 1 carrying a number of angularly equi-spaced mould holders 2, mechanism for rotating the platform step-bystep to bring the mould holders one-by-one into register with the nozzle and for locking the platform between steps, and means for moving the carriage to and from the apparatus to bring the registering mould holder into engagement with the nozzle while the platform is locked. The carriage 3, mounted on rails 4, is driven by motor 10 through an eccentric-and-rod mechanism 6, 18 connected to a stationary anchorage 7, the motor 10 also driving a maltese-cross mechanism 9, 14 which rotates and locks the platform 1. The mould holder parts 22, 22A and the mould cover 23 (Fig. 4,) are closed by the action of two ramps 20, 20A on rollers carried by a vertical slide rod 21 and a spring-pressed lever 21A, respectively, the cover being clamped to the body of the holder by a double-acting piston 24 carrying jaws 26 and the mould holder parts clamped to the injection nozzle 28 by spring- loaded jaws 27. Suitably positioned switch devices actuated by the moving parts of the machine control the movements and operations in timed sequence as a continuously recurring cycle.
Patent GB-664953-A (GB)
Title: Improvements in or relating to belt conveyors
Inventor: JACKSON GEORGE JAMES
IPC: B65G45/10
Filed: 1949-05-12
Abstract: 664,953. Endless-belt conveyers. WOODHALL-DUCKHAM VERTICAL RETORT & OVEN CONSTRUCTION CO. (1920), Ltd. May 11, 1950. [May 12, 1949] No. 12691/49. Class 78 (i). Belt cleaning means for re moving fines from the return run of a belt conveyer for granular material comprises an inclined collecting tray ar ranged below the return run of the belt adjacent the discharge pulley end thereof so as to deliver material collected there by into the main discharge shoot for receiving the main body of material from the conveyer belt, means for vibrating that portion of the return run of the belt which is located over the said tray in order to cause fines adhering t( the belt to be shaken therefrom and to fall on to the tray, and means for vibrating the tray t( cause material collected thereby to pass down the tray for delivery into the main discharge shoot. Fig. 1 shows an embodiment wherein material is normally discharged from the conveyer belt 1 into a shoot 4 and any fines adhering to the belt are removed at 10 and fall on to a jigging tray 9 which feeds them to the shoot 4. The part of the belt at 10 is jigged so as to remove the fines by an idler 7 which is supported in brackets 8 upstanding from the tray. The tray is supported by two pairs of links 13, 14 pivotally mounted on shafts 15, 16, and is reciprocated by a pair of rods 29, connected to a pair of eccentrics 21 fixed at opposite ends of a shaft 22 mounted in brackets 23 and driven from an electric motor 25 through belt-andpulley gearing. Dislodging of the fines from the belt is assisted by scrapers 30, 31, which are carried on shafts 32 mounted in brackets 33 and pressed against the belt by adjustable weights 35 on lever arms 34 secured to the shafts 32.
Patent GB-1309851-A (GB)
Title: Rotor and stator electrical machine assemblies
IPC: H02K21/40
Filed: 1970-03-17
Abstract: 1309851 Dynamo-electric machines IMC MAGNETIC CORP 17 March 1970 [31 Oct 1969] 12740/70 Heading H2A A dynamo-electric machine, e.g. a synchronous motor, stepping motor or induction generator, comprises a casing 10 of magnetic material, a laminated stator core 53 having wound poles, a stationary cylindrical permanent magnet 61 fixed at one end to the casing 10, and a rotor 54 having a cylindrical portion extending concentrically between the core 53 and the permanent magnet and a radial portion facing the free end of the magnet, which may carry a soft iron disc 70. Both the rotor and the poles of the core 53 comprise a plurality of teeth. The rotor is formed of powdered material, and may be mounted in bearings at one end only.
Patent GB-578912-A (GB)
Title: Improvements in or relating to loading mechanism for ordnance
IPC: F41A9/42
Filed: 1941-10-02
Abstract: 578,912. Loading ordnance. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. Oct. 2, 1941, No. 12744. [Classes 9 (i) and 92 (i)] [Also in Group XXXVII] Means for automatically loading rounds into the gun breech comprises an inclined loading tray 1 supporting the rear end of the round on parallelmotion links 2, 3 with the nose of the round in line with a fuze-setter 31, a rammer-head 19 supporting the base of the round, a setting-arm 32 spring- operated, after the fuze has been set and the tray lowered, to move the round into line with the breech about its,end engaged by the rammer, and a, ramming-device. preferably operated by an electric motor through control devices as described in Specification 578,742. Fig. 2 shows the loading-tray, supported by the links 2, 3 from a non-recoiling part 6 of the gun, a handle 12 being shown which is operated to lower the tray below the path of gun recoil where it is held by a spring-controlled arm 14 engaging a stop 15 controlled by links 17, 18. The handle 12 is connected by a Bowden cable with the starting- button of a fuze setter 31 as described in Specification 578,330, which is moved forwards over the nose of the round to set the fuze and is then returned. This return movement acts to release a retaining guide 29 for the nose of the round and a catch 137 retaining a spring arm 32 which moves through 180‹ to tilt the round about its base support on the rammerhead into line with the breech. The arm 32 in its extreme position actuates the switch 34 operating the ramming-motor 26. This motor is connected by a flexible shaft to the ramming- carriage moving in guides on the part 6 of the gun and during ramming the motor makes a fixed number of revolutions thereby operating the switch control gear described in Specification 578,742. When the rammer nears the end of its forward travel, a catch holding the head 19 is released and the head is then moved clear of the recoil path of the gun. The breech is then closed and the gun fired. On the return of the gun after recoil, the change-over switch of the control gear is operated and the motor is reversed to return the rammer, the carriage of which operates cable gear to return the arm 32 and guide 29 to normal position and to release the catch 15 holding down the loading tray. The Provisional Specification also describes a mechanically-operated rammer of the cable and pulley type for use in place of the electricallyoperated rammer.
Patent GB-256714-A (GB)
Title: Improvements in and relating to the inflation of pneumatic tyres
IPC: B60C23/00
Filed: 1925-05-16
Abstract: 256,714. Clift, T. H. May 16, 1925. Pneumatic-tyre pressure gauges. - An audible signal is given when a predetermined pressure is reached and the gauge cut off from the supply of pressure fluid. The apparatus comprises a chamber, supplied with compressed air from a pump &c., which communicates with the tyrevalve and has a branch leading to the atmosphere through an adjustably-loaded valve. In the construction shown in Fig. 4, the chamber d is connected at g to the tyre-valve casing h and has an opening u leading to a ported cap s on which is a valve-seat o normally engaged by the lower end of a tube k. The latter is formed with a shoulder m between which and an adjustable screwed collar w is fitted a spring n. The cap s is clamped between a shouldered nipple r and the lower end of the casing q. A flexible sleeve p is secured to the lower end of the shoulder m and clamped to the part s. In operation, when the desired pressure is reached, the tube k is raised from its seat o against the pressure of the spring n. Air then escapes from the chamber d to the atmosphere through the tube k within which is fitted a reed &c. I adapted to give an audible signal. Fig. 7 shows a modification in which the lower part k<1> of the tube k is formed separately and provided with shoulders k<2>, k<3> limiting its movements within the shouldered collar m on the lower end of the tube k. Secured near the lower end of the part k<1> and to the casing q is a U-section elastic sleeve p<1> which, as the air-pressure increases, is stretched until the sleeve m abuts the upper shoulder k<2>. On further increase of pressure, the stretched tube reacts causing a rapid lift of the part k<1> from its seat o<1>. Figs. 12 and 15 show means for preventing premature actuation of the signal device through the effect of sudden impulses of the inflating-pump. In Fig. 12, a valve t<5> alternately closes and opens seatings t<2>, t<3> leading respectively to the controlling-valve port u and the pump connection t<4>. In the modification shown in Fig. 15, an elastic sleeve t<8> is provided on the supply pipe t' to open and close ports u<1>, u<2> leading into and out of the compressed-air chamber t<6> in the to-and-fro movements of the pump piston. To ensure exact working, means may be provided for opening, and holding open, the tyre valve during the operation.