baber/WOPTO huggingface dataset:
Patent GB-572791-A (GB)
Title: Improvements in or relating to delaying mechanisms for use on projectiles
IPC: F42C11/00
Filed: 1941-12-18
Abstract: 572,791. Projectile fuzes. WEST & CO., Ltd., A., and BREEZE, V. L. Dec. 18, 1941, No. 16357. [Class 9 (i)] Fuzes for projectiles which accelerate for a considerable period, e.g. self-propelled rockettype projectiles, comprise means for delaying arming of the fuze until the acceleration has fallen to a given value. In the construction shown, the arming of the fuze is accomplished with two pairs of fixed contacts 9 which are bridged by two contacts 10. Prior to discharge of the projectile, the parts are in the position shown. Each contact 10 is mounted on a lever 11 which is pivoted at 11a and pulled clockwise by a spring 5 anchored to the vertical arm of a bell-crank lever 3. The horizontal arm of the lever 3 abuts the lever 11 and holds the contact 10 away from the contacts 9. The lever 3 is and fixed on the shaft, between the plates, is a mass 6. It is to be assumed in the drawings that the projectile travels upwardly. When the projectile is discharged and accelerates, the mass 6 moves downwards by inertia and thus rotates the shaft 7 and disc 8 anti-clockwise. When the disc 8 has moved through 90 degrees, an opening 12 in the disc is opposite the tail 3a, so that the tail may drop into the opening and the lever 3 may rock clockwise to allow the contact 9, 10 to be made ; but the tail does not immediately drop into the opening, for the horizontal arm of the lever 3 also is held back by inertia. When the acceleration drops to a certain value, the spring 5 rocks the lever 3 clockwise and the contact 9, 10 is made. A safety device which ensures that the mass 6 will not move downwardly when the device is dropped, comprises a fly-wheel 13 so geared to the shaft 7 that as the shaft rotates slowly the fly-wheel moves rapidly. This device may be replaced by an air dashpot. The mass 6 is biassed to the normal position by a light spring 14. When the mass 6 reaches its permissive (opening-opposite-tail) position, it is latched there by a spring 15 which engages a recess 16 in the mass. The members 3 also may be latched-in after they have moved clockwise. In modified arrangements, (a) a circuit normally established may be interrupted by movement of the tail away from the disc 8 ; (b) the radius of that part of the surface of the disc 8 extending between the tail 3a and the opening 12 may increase, thus providing a delay additional to that caused by the fly-wheel 13. The elements 3, 8, 9, 10, 11 are duplicated on each side of the mass 11. The device is mounted on a base 1.
Patent GB-1430086-A (GB)
Title: Fluid control valve
IPC: F16K3/06
Filed: 1972-04-10
Abstract: 1430086 Valves IMPERIAL CHEMICAL INDUSTRIES Ltd 4 April 1973 [10 April 1972] 16400/72 Heading F2V A valve for use as a domestic water tap or in a cistern, comprises a polyacetal housing 11 in which is mounted a sleeve 17 capable of a small movement in a direction parallel to an outlet orifice 13 and a polyacetal cylindrical component 16 which may be rotated within the sleeve 17. An extension 15 of this component forms the closure member and engages a nitrile rubber 0- ring 14 which surrounds the outlet 13. The valve is substantially hydrostatically balanced and a spring may be used to press the closure member on to the seat. In an alternative mebodiment, Fig. 4 (not shown) the sleeve is omitted and the cylindrical component is supported in an 0-ring set at an angle to the diametral plane so that the closure member may be fully balanced in the closed position by making the upper surface area of the cylindrical member subject to inlet pressure equal to the lower surface area less the area enclosed by the seal around the outlet orifice. The valve may be made of steel, brass, polyethylene, polypropylene, nylon, polyacetal, or polymethyl methacrylate.
Patent GB-951213-A (GB)
Title: Improvements intr relating to the preparation of highly polymeric polymethylene terephthalates
IPC: C08G63/692
Filed: 1961-05-05
Abstract: Polyalkylene terephthalates having less tendency to pill and an improved dye-affinity are made by polycondensing a hydroxyalkyl terephthalate in the presence of a metal alkyl phosphate or a metal hydroxyalkyl phosphate in an amount of at least 0.5% mol. calculated on the amount of terephthalate, whereby metal phosphate groups are incorporated into the polymer molecules.  The metal may be Li, Na, K, Ca, Sr, Ba, Mg, Zn or Pb.  The glycol component of the polyester may be a polymethylene glycol containing 2-10 carbon atoms or a mixture thereof (e.g. ethylene glycol and butane-1:4-diol). The dicarboxylic acid compound may include a small amount of isophthalic acid.  In examples, ester-interchange was effected between dimethyl terephthalate and ethylene glycol in the presence of zinc acetate, manganese acetate or litharge and the product polycondensed in the presence of antimony oxide, germanium oxide or litharge and (1) mono (beta-hydroxyethyl) mono-calcium phosphate; (2) diethyl mono-sodium phosphate; (3) di (hydroxypropyl) mono-potassium phosphate; (4) mono-ethyl mono-magnesium phosphate; (5) mono (hydroxyethyl) mono-plumbous phosphate; (6) mono (hydroxyethyl) di-sodium phosphate.
Patent GB-472505-A (GB)
Title: Improvements in and relating to electric generators
IPC: H02K23/04
Filed: 1936-06-12
Abstract: 472,505. Magnetos. WHITE, W. A., and WHITING, W. R. G. June 12, 1936, No. 16471. [Class 35] A generator field magnet comprises a plurality of radially extending permanent magnets disposed about a rotary armature. In the form shown, the magnets 2 extend from polepieces 2a, to the yoke A, their outer ends projecting into perforations in a non-magnetic retaining plate 2b, while clamping plates 2d may also be provided at the inner ends of the magnets. A further set of magnets 3 is similarly supported on the opposite side of the machine. For increasing the excitation at higher outputs auxiliary field coils B may be provided.
Patent GB-355811-A (GB)
Title: Improvements in or relating to fluid pressure braking systems
IPC: B60T13/36
Filed: 1930-05-29
Abstract: 355,811. Fluid pressure brakes. BOUGHTON, E. B., Brock House, Langham Street, London. May 29, 1930, No. 16643. [Class 103 (i).] A master cylinder 1 for fluid-pressure braking systems is pivotally supported on the pressureproducing lever 7 and on a part 5 of the vehicle which takes the thrust when the lever is actuated. The lever 7 is pivoted at 8 and is provided with a forked extremity 7a having inwardly directed pivot members 7b extending through longitudinal slots in the cylinder wall and engaging recesses in the piston. The slots and recesses extend to the ends of the cylinder and piston respectively so that the fork 7a may be readily applied in position. Cup washers 10, 11 are mounted on the piston head 9b which is reduced in diameter to form an annular passage 9 communicating by passages 9e, 9f in the piston and a flexible pipe with a supply tank. The passage 9d also communicates by means of a recess 1c in the cylinder wall and pasasges 1d, 1e with the interior of the cylinder. The recess 1c is closed by a sleeve 1f soldered in position. When the piston is forced inwardly by the lever 7 fluid is by-passed through the passage 1c until the cup washer 10 closes the passage 1d when fluid is forced to the brake cylinders through the valve 15 of a double-acting non-return valve and a nipple 3. When the lever 7 is released fluid flows back through the valve 12 which supports the valve 15, and is held on its seat by the return spring 14 of the pistons 9. Return flow of fluid to the cylinder 1 is stopped by the valve 12 when the pressure in the system is suitably reduced, and if there has been any leakage partial vacuum is formed in the cylinder by further movement of the piston back to normal position, which causes fluid to flow from the supply reservoir and passages 9f, 9e, 9d, 9h and past the washer 10 to the interior of the cylinder. A stop ring 18 for the piston is provided. A dust cover for the connection between the piston and the member 7 may be provided.
Patent GB-145502-A (GB)
Title: Improvements in or relating to the deodorisation of soaps
IPC: C11D13/02
Filed: 1920-06-21
Abstract: Liquid soap is deodorized by treating it with steam under pressure, e.g. in an autoclave, at a temperature of about 200 DEG  C. or over. The autoclave may be heated by direct firing or by admission of superheated steam.  Hot water or steam, as the case may be, is admitted so as to keep the concentration of the soap solution approximately the same during the operation.  The odoriferous impurities are carried off by the steam and escape therewith through a valve.
Patent GB-783643-A (GB)
Title: Improvements in combine harvesters
IPC: A01D41/10
Filed: 1955-06-10
Abstract: 783,643. Combine-harvesters. ALLISCHALMERS MANUFACTURING CO. June 10, 1955 [June 21, 1954], No. 16790/55. Class 6(3). A combine-harvester, of the type having a transverse auger 9 feeding to an elevator 6, is modified for use with previously-cut crops by the addition of a pair of arms 24 projecting forwardly from the auger-trough 8, the arms carrying side-brackets 27 which pivotally receive the rear ends of frame members 38 carrying an endless-belt pick-up 34, so that the pick-up can float freely about a transverse axis forwardly of the auger, under the control of a resilient suspension 71, 81, between the arms 24 and the pick-up frame 38. The harvester comprises the double auger 9 feeding to a central aperture 7<SP>1</SP> in the rear of the trough 8 whence the crop is fed to the beater 5 and separating mechanism 4 by the elevator 6. The trough, auger and elevator, together with dividers 13, 14 and the cutter-bar (not shown) form a header-frame which is pivoted about the axis 1 of the upper elevator-pulleys and is supported by a link 2. The side-arms 24 are bolted to the front of the trough 8 and the brackets extend between these arms and members 31. The brackets are slotted to accommodate squared bearings 41 for the shaft 43 carrying the rear roller 45 of the pick-up, the latter comprising an endless belt carrying times 57. Square bearings 49 at the front of the members 38 are adjustable along slots 52 to vary belt-tension. The members 38 carry arms 63 which are secured to shoes 58, 59, which are connected to the arms 24 by spring-encircled rods 71 forming a resilient suspension. The forward edge of the trough 8 is extended by rubber-covered member 23. For use with longstemmed crops, the pick-up is moved to a second pair of brackets 99, Fig. 4, on the arms 24 the member 23 then being replaced by a longer extension, Fig. 9 (not shown) which completely covers the cutter-bar.
Patent GB-1517108-A (GB)
Title: Lenses
IPC: G02B11/32
Filed: 1976-04-26
Abstract: 1517108 Petzval objective RANK ORGANISATION Ltd 21 April 1977 [26 April 1976] 16908/76 Heading G2J An objective especially for a sighting device comprises front and rear groups spaced #À5F, the front group comprising a simple convergent front component and a rear compound meniscus shaped as shown and a rear group comprising a compound component R 8 -R 10  of the shape shown. The materials of the convergent front components of the compound components in the front and rear lens groups both have materials exhibiting an anomalous dispersion characteristic i.e. producing less dispersion at the long line end of the spectrum for which the lens is computed.
Patent GB-905502-A (GB)
Title: Improvements in differential pressure gauge
IPC: G01F1/38
Filed: 1959-05-19
Abstract: 905,502. Pressure gauges. YARNALLWARING CO. May 19, 1959 [July 1, 1958], No. 16975/59. Class 40 (1). [Also in Group XIX] In a differential pressure gauge movements of a flexible diaphragm are transmitted to a distance by connecting the diaphragm to a magnetic core which varies the coupling between two windings of a transformer, the output from which is added to the output from a similar transformer whose core is arranged to move with an indicating pointer, the combined output of the transformers is compared with a standard and the difference is used to drive the pointer, and hence the second transformer cores, to minimise the difference. Gauge Unit, Fig. 3.-This comprises a diaphragm 29 in the centre of which is a fitting 28 having a well into which fits a pin, the other end of which fits into a second fitting attached to a leaf spring 47. Also attached to the leaf spring is a permanent magnet 50 which straddles a cylinder 55 containing a helical magnetically susceptible armature 57 free to rotate on bearings 58 and 60 and connected to pointer 61 to give a local indication of pressure differential. On the side of the diaphregm remote from the spring is mounted a magnetic core moving in a non-magnetic cylinder round which are wound the two coils of the transmitting transformer. The zero setting and fine adjustment of range may be accomplished by adjusting the fulcrum point 71 of the leaf spring by screws 73 and 75. In a further embodiment, Fig. 10 (not shown), the magnetic core is not attached to the diaphragm fitting but mounted in springs which urge it against the diaphragm fitting. Remote indicator circuit, Fig. 9.-The gauge unit coils are shown at 100, 101, the coupling between which varies with the position of core 80 which is attached to the pressure gauge diaphragm. The remote indicator comprises pointer 103 on shaft 117 which is rotated by solenoid 112 via crank 116. The pointer also carries a core 107 of transformer 108 similar to the transformer 98 of the gauge unit. Also included at the remote position is a zero adjusting transformer 121 and a range adjusting transformer 122, each of which has a preset core. One coil of each of the transformers 98, 108, 121 and 122 is connected in a series circuit across supply 131. The remaining coils are also connected in series, the transmitting and receiving transformer coils being series aiding, in series opposition to the range adjusting and zero setting transformer coils, the resultant voltage being applied to amplifier 138 to drive solenoid 112. The arrangement is such that the output from transmitter transformer 98 plus the output from receiver transformer 108 is held constant so that if, due to a change in pressure, core 80 moves into transformer 98 and amplifier 138 drives solenoid 112 to withdraw core 107 from receiver transformer 108 tending to maintain the sum of the two transformer output voltages constant. The pointer thereby taking up a position corresponding to the displacement of the diaphragm in the gauge unit.
Patent GB-541585-A (GB)
Title: Process for the catalytic polymerisation of normally gaseous olefins
IPC: C07C2/18
Filed: 1939-05-19
Abstract: 541,585. Polymerization of butenes. UNIVERSAL OIL PRODUCTS CO. May 19, 1939, No. 16983/40. Convention date, June 15, 1938. Divided out of 532,381. Drawings to Specification. [Class 2 (iii)] Butenes are polymerized to low molecular weight polymers, mainly octenes, by contacting with a pre-calcined phosphoric acid catalyst at a temperature of 135-171‹C. and a pressure of 43.5-82 atmospheres, preferably 60-80 atmospheres. The butenes are used in the form of a liquefied hydrocarbon mixture consisting of butanes and iso- and normal-butenes and the mixture after being heated is passed continuously through the solid catalyst. The latter consists of a pre-calcined mixture of a major proportion by weight of a phosphoric acid and a minor proportion of a siliceous carrier such as kieselguhr, preferably mounted in a series of reaction chambers containing catalyst of increasing potency. The catalyst is preferably filled into tubes connecting spaces at the top and bottom of the chambers, the tubes being surrounded with boiling water whose evaporation at the expense of the reaction heat serves to control the temperature. Specifications 477,128, 490,854, 496,676 and 511,181 are referred to. The Specification as open to inspection under Sect. 91 also refers to Specifications 437,188 ; 463,272 and 463,864, [both in Group III]. This subject-matter does not appear in the Specification as accepted.
Patent GB-1354028-A (GB)
Title: Power operated screwdrivers
IPC: B25B21/02
Filed: 1971-05-25
Abstract: 1354028 Power operated screwdrivers P LEONI and I CATTINI [trading as NUOVA LAPI] 25 May 1971 [25 May 1970] 17048/71 Heading B3N A power operated screwdriver comprises a rotor 22 having integral therewith a flywheel 36 having a cavity in which is positioned a longitudinally movable mass 33 to impart an impact to a screwing bit 4. The mass 33 is connected to a tubular member 37, the end part of which forms a piston in a cylinder 40. Movement of member 37 is controlled by air entering the cylinder on one or the other side of the piston. Various conduits in the cylinder link up with the compressed air supply or the exterior to allow this. The direction of rotation of rotor 22 is controlled by a diaphragm 11 which is movable to allow air to enter an appropriate conduit system.
Patent GB-318949-A (GB)
Title: Improvements in packages for cigarettes and like articles
IPC: B65D85/10
Filed: 1928-06-13
Abstract: 318,949. Molins, W. E. June 13, 1928. Unpacking. - A packet for cigarettes &c. comprises a U- shaped block-ended envelope 1 reinforced by a rectangular frame 2 of cardboard &c. having one end 7 projecting beyond one side of the packet so that the latter can be opened thereby. The open end of the packet is closed by first folding down the tuck 4 adjacent the end 7 of the frame, then folding down the tuck 5 and portion 6 of the frame and finally folding the tucks 8, 9 down and securing them by adhesive. By pulling on the end 7, the top of the packet is torn off and by lifting the frame 2, which is independent of the packet 1, the cigarettes &c. are raised from the packet for withdrawal. Specification 275,870 is referred to.
Patent GB-321631-A (GB)
Title: Improvements in exhaust steam injectors
IPC: F04F5/46
Filed: 1929-06-04
Abstract: 321,631. Wade, H., (Hydrometer Breslauer Wassermesser Fabrik Akt.-Ges.). June 4, 1929. Giffard injectors; regulating; starting and stopping, automatic; overflow arrangements.- An exhaust steam injector is provided with an independently-arranged starter. The exhaust steam can pass into the steam injector only when the latter is working as an ordinary injector with cold water. A pipe 2 connects the exhaust pipe 1 with the starter, which is connected by a pipe 5 with the injector 6. The exhaust mixes with feed-water supplied from the space 8 through a valve-controlled pipe 7. Live steam passes from the boiler through valve 10 and pipe 11 to the upper chamber of the injector. the heated feed water passing by pipe 12 and the overflow water by pipe 13 to the tank 8, the pipe passing through the tank. The starter. Fig. 2, is connected by a pipe 15 to the cylinder valvechest, and by pipe 16 to the injector, delivery chamber. When the cylinders are working, the exhaust steam passes to chamber 6 and preheats the feed-water. When the engine is still or running idle, the exhaust steam injector operates as an ordinary injector. The starter comprises casings 17, 17a with spring and pistoncontrolled exhaust valves 18, 18<a> under the action of valve-chest pressure and feed-delivery pressure respectively. When steam enters the valve-chest, valve 18 is opened, but valve 18<a> is not opened until the injector is working with main steam when the pressure in chamber 30 affects the piston 21<a>.
Patent GB-1473786-A (GB)
Title: Burster
IPC: B26F3/02
Filed: 1975-04-24
Abstract: 1473786 Bursting webs; stacking sheets UARCO Inc 24 April 1975 [16 Sept 1974] 17120/75 Heading B8R A bursting apparatus has first and second sets of bursting rollers 180 and 182 respectively is provided with a removable printing assembly 28 for printing on the webs of continuous stationery before they are separated into individual form lengths. The printing assembly carries a latch means having a handle 140 which is moved by a sliding cover 22 of the apparatus to the latching position when the cover is closed. An inking unit 30 for the printing assembly is detachable from the assembly and is normally held in place by a further latch means which is also engaged as the cover is closed. The printing assembly co-operates with a feed roller 26 which acts as impression roller. Continuous stationery entering the apparatus is trimmed by tractor-trimmer assembly 24, printed at 28 and separated into individual form lengths by the bursting rollers. The form lengths leave guides 170 and are delivered by belts 202 and rollers 200 to a stack on vertically movable receiver 18. A movable vane 266 engages the top of the stack to guide sheets into position against end slabs 268 and to relay information concerning the height of the stack to the elevator motor for the receiver. To provide adjustment for different form lengths rollers 180 are mounted on a first carriage 184 and rollers 200 on a second carriage 208. Both carriages provide for horizontal movement of the rollers and are coupled for simultaneous adjustment if sensor 260 detects sheet jams.
Patent GB-1082734-A (GB)
Title: Land-to-mobile telephone link
IPC: H04W84/02
Filed: 1965-04-23
Abstract: 1,082,734. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. April 23, 1965 [April 30, 1964], No. 17191/65. Heading H4K. In a system which includes mobile radio stations, a base station 52 connected to a central office 51 is provided with a line circuit 63 for each mobile substation and is further connected to the radio equipment 53, 54 by way of a 2-to-4 wire converter 55 similar to that described in Specification 1,060,138. There may be for example 8 radio channels one of which is pre-allotted as the next to be used, and an idle tone is sent to align all the mobile stations on that channel. When a call is initiated at a mobile station the allotted channel is seized and a guard tone is sent to that station. If no tone indicating a dialling station is received the call is directed to an operator's position, but if such a tone is received the call goes to the switching equipment at the central office and a register is taken into use. Mobile subscribers take priority over normal subscribers. The identity of the mobile station is sent automatically in the form of tone signals which are repeated as D.C. impulses to the register. Dial tone is then sent to tell the mobile subscriber to dial. In both cases a pulse of guard tone is sent between impulses as a parity check. On a call to a mobile station either the operator or the calling subscriber dials the number of the station which is transmitted in the form of code signals over the pre-allotted radio channel. The station required recognizes its own code and when the subscriber replies the ringing is tripped to complete the connection.
Patent GB-911350-A (GB)
Title: Improvements relating to suspension bridges
IPC: E01D11/02
Filed: 1960-05-16
Abstract: 911,350. Suspension bridges. ROBERTS, G. April 24, 1961 [May 16. 1960], No. 17207/60. Class 20 (1). The deck of a suspension bridge is constituted by an elongated box structure having sharp longitudinal edges 18, and is attached to the bridge cables 14 by hangers 15 of inverted V- shape, the angle (less than 35 degrees) between the arms of a hanger being dependent upon its position along the deck, Fig. 3 (not shown). The side spans of the bridge may be of similar box construction; the centre and side spans being articulated to the support towers.