baber/WOPTO huggingface dataset:
Patent GB-1027291-A (GB)
Title: Improvements in or relating to apparatus for measuring the mass flow of fluids
Inventor: MOSS NORMAN
IPC: G01F1/82
Filed: 1962-02-02
Abstract: 1,027,291. Rotary mass-flow meters. PLESSEY-U. K. Ltd. Jan. 31, 1963 [Feb. 2, 1962; May 21, 1962; Oct. 4, 1962], Nos. 4088/62, 19535/62 and 37580/62. Heading F1F. [Also in Division G1] A rotary mass flow meter comprises a stationary deflector device including variable angle deflector vanes imparting a swirl to the fluid flowing in a duct, a device responsive to the swirl including a swirl-operated bladed rotor, a device responsive to the torque reaction produced by the swirling movement applied to the fluid including a torque-responsive reactor, fluid-flow-responsive means automatically decreasing and increasing the angle of the deflector vanes in the longitudinal direction of the duct in response to increases and decreases in the fluid flow rate and computer means fed with the outputs of the swirl and torqueresponsive devices to determine the mass flow as the quotient of the two outputs. As shown, a duct 1, Fig. 1 (not shown), through which liquid or gas flows in the direction of arrow 2, houses pivotally-mounted deflector vanes 4 loaded by springs 8 in opposition to fluid flow so that as the rate of fluid flow increases the angle of the vanes relative to the duct axis decreases. The vanes 4 impart swirl to the fluid to rotate a bladed turbine 7 which co-operates with a pulse counter 14 connected to a pulse-rate meter 15 to record the flow rate. After passing through the turbine 7 the flow is straightened by passage through axially disposed vanes 10 of a torque-responsive reactor member 9 secured to a shaft 11 subject to the action of a temperature-compensated spring 12. The rotation of the shaft 11 under the reaction torque being measured by a torquemeter 13, the output of which together with that from the pulse-rate meter 15 is fed to a computer 16. To ensure that turbine speed is proportional to circumferential speed of the fluid leaving the vanes 4, part of the flow passes through an aperture 21 in a conical fairing 20 to act on a piston 18 connected by a shaft 17 to the turbine 7. The hub 6 of the turbine 7 being tapered to permit radial expansion of the fluid and pressure to act on the rear face of the turbine 7 in opposition to that acting on the piston 18 to control the opening of a ring of ports 19 through which the fluid entering the conical fairing 20 leaks. Instead of the spring-loaded vanes 4, vanes 145, Fig. 9 (not shown) of flexible material may be fitted associated with rigid plates 146 to prevent the vanes taking up an S formation at high flow rates. In another embodiment, the turbine and torque reactor include hollow bodies to the turbine and torque reactor which function as buoyancy chambers to reduce the effective weight of these parts. The turbine and torque reactor are mounted in sapphire bearings and jointly balanced against axial thrust.
Patent GB-339870-A (GB)
Title: Improvements in surface apparatus for heating or cooling liquids
IPC: F28F9/02
Filed: 1930-02-07
Abstract: 339,870. Morton & Co., Ltd., R., and Robinson, P. Feb. 7, 1930. Straight tubes between headers.-In surface apparatus comprising units consisting of tubular casings 1 containing tubes 7 extending longitudinally, one fluid flowing back and forth in the tubes and the other back and forth in the casing, the flow of the outer fluid is directed by partitions 9 arranged radially and dividing the casing into a number of passages. The partitions 9 are attached to blocks 4 and 5 which carry the tubes 7 and may be formed by longitudinal fins on a tube 10 enclosing the central tube 7 and provided with ports 31 to admit the outer fluid. Blocks 4 and 5 are provided with a central boss 12 connected to the periphery by radial partitions 13 to which the partitions 9 are attached. Partition 13b does not extend to the end of the block, and partitions 13<a> extend forward from the block and are connected by an extension of the boss 12; a sectorshaped partition provided with an aperture for the tube 7 in the particular passage divides the space between partitions 13<a> from the passages on each side and allows these two passages to communicate around the end of the middle passage. Thus the liquid entering by port 32 at the block 5 end is caused to flow as indicated by arrows in Fig. 13. Screw clamped caps 6 provided with depressions 20 - - 23 connect the tubes 7 in series. The blocks 4 and 5 may contain the connecting passages in which case they are held by screw clamping means similar to the caps. Specification 339,869 is referred to.
Patent GB-543174-A (GB)
Title: Improvements in and relating to key-carrying devices
IPC: A45C11/32
Filed: 1941-03-28
Abstract: 543,174. Keyholders. UNITED-CARR FASTENER CORPORATION. March 28, 1941, No. 4210. Convention date, April 9, 1940. [Class 44] In a keyholder loop-members 10, preferably formed by bending up a tongue of a blank integral with a gapped annular portion 8 forming a base, are snapped into apertures 5 in a plate fitting 3 adapted to be secured as by rivets in a leather &c: folder or purse in the usual way. The loop 10 ends in a foot 11 freely movable in and substantially closing the gap in the base 8 which nests rotatably in a recess in the back of the plate formed by an embossed portion 6 round the aperture 5. The key receiving member comprises a loop 13 the limbs of which are crossed and terminate in hooks 15, 16 which normally register to form a loop engaged in the'loop 10. One end is bifurcated to provide a pair of hooks 15 side by side, the end 16 of reduced width moving between them. The hook ends are separable, as in Fig. 3, for attachment to or removal from the loop 10, by squeezing the limbs of part 13 together. When detached the key is passed over one of the hook ends into the bight of part 13.
Patent GB-663281-A (GB)
Title: Improvements in synchronous servo-control
IPC: G05D3/12
Filed: 1949-02-16
Abstract: 663,281. Positional correspondence control systems. OLAER PATENT CO. Feb. 16, 1949. [Feb. 27, 1948] No. 4230/49. Class 40 (i). [Also in Groups XXIX and XXXV] A servo follow-up positional control system, is controlled by signals that are a function of difference in displacement of the input and output members plus at least one of the time derivatives thereof. In one arrangement a rotary device 9 and a reference 15 to be maintained in synchronism, drive selsyns 18, 17 and tachometer generators 13, 14 respectively to provide displacement and velocity signals, from which error voltages are developed and applied to the deflector plates of a C.R.T. switch. The detector elements 4, 5 of the C.R.T. are coupled to an amplifier 7 feeding a servo-motor 8 which controls the drive motor of device 9. Alternatively a photoelectric detector may be used with reflecting prisms oriented by the error signals, Fig. 3 (not shown). The Specification as open to inspection under Sect. 91 describes an embodiment with fluid servomotors (see Group XXIX). This subjectmatter does not appear in the Specification as accepted.
Patent GB-735280-A (GB)
Title: Improvements in removable tabs or labels for marking textile articles
Inventor: MEYER HANS
IPC: B65C5/04
Filed: 1952-08-27
Abstract: 735,280. Laundry &c. labels. POLYMARK, Ltd. Aug. 27, 1952, No. 4284/55. Addition to 735,236. Drawings to Specification. Class 142(4). [Also in Group XV] Covers a method of marking garments, e.g. for laundering and dry-cleaning, by applying labels made from the fabric disclosed in the parent Specification. Specifications 561,989, 644,119, [Group XV], and 650,910 also are referred to.
Patent GB-317361-A (GB)
Title: Welding method and composition
IPC: B23K35/32
Filed: 1929-02-08
Abstract: 317,361. P. L. & M. Co., (Assignees of Morgan, H. J.). Aug. 14, 1928, [Convention date]. Drills; compound forms.-Metal bodies, such as earth boring drills, are provided with a hard metal facing by applying a granular composition of a metal such as tungsten and a hardening agent such as carbon and fusing by welding, preferably by means of the electric arc. The composition may consist of nine pounds of powdered unwrought tungsten, one pound of finely divided carbon, together with a binder such as one ounce of dextrine. These ingredients are mixed in dry condition and dextrine water added to form a paste which is dried and baked in an oven and then broken into particles small enough to pass a “ inch screen. In use the tungsten alloys with the carbon to form tungsten carbide and also alloys with the metal body. Part of the carbon is burned during welding and serves as a reducing medium to prevent oxidation of the tungsten. A number of layers may be applied in succession. Elements such as nickel, uranium, molybdenum, manganese, vanadium, titanium, chromium or tantalum may be used in addition to or as a substitute for tungsten. The Specification as open to inspection under Sect. 91 (3) (a) states also that the tungsten may also be used in the form of a welding rod. This subject-matter does not appear in the Specification as accepted.
Patent GB-1386944-A (GB)
Title: Automatic reading and writing mechanism for bank passbooks and the like
IPC: G11B19/00
Filed: 1973-01-29
Abstract: 1386944 Document reader BURROUGHS CORP 29 Jan 1973 [9 Feb 1972] 4355/73 Heading G4M A magnetic reader/writer for magnetic strips on a bank pass book has a pair of gripper arms 30, 42 operable by a solenoid to grip the leading edge of a pass book and move the edge to abut a stop 26 and a head movable along a magnetic strip on the book and resiliently pressed against the book. The book is inserted through a slot in the reader and passes between the free ends of the gripper arms. A solenoid 106 operates one end of a spring 114 to lift an end 32 of the upper arm and so close the free ends. When the book is gripped an inclined slot 36 in the upper arm moves along pivoting bar 34 to move the book towards stop 26. When entered the book operates switches 122 via buttons 120 to indicate the presence of the book and, if the switches do not operate concurrently to indicate misalignment. The switches may be wired in series to operate solenoid 106. The head is carried on a block 60 movable on guides 64 and is adjustable (Fig. 11, not shown) to alter its angle relative to its direction of movement. The block is moved by a card 132 clamped at 130 and coupled at one end to a return spring (Fig. 4, not shown) and at the other end to a cam operated pivotally mounted arm so that movement of the arm moves the block. The head 20 is mounted on resilient arms 7, 8 and is contacted by a further resilient arm 104. A camming pin 72 is mounted between arm 104 and a camming surface (Figs. 7, 8, not shown) to press the head against the strip after the block has commenced movement. The arm 104 compensates for different thickness of book.
Patent GB-1236555-A (GB)
Title: An oil seal mounting arrangement
Inventor: BALAGOPALAN PARAKAT
IPC: F16J15/34
Filed: 1969-01-27
Abstract: 1,236,555. Rotary shaft seals. DAVID BROWN GEAR INDUSTRIES Ltd. 26 Jan., 1970 [27 Jan., 1969], No. 4366/69. Heading F2B. An axially movable and rotatable shaft 11 is sealed against oil leakage where it extends through a casing 10 of a gear unit by a seal 37 located between the shaft and a non-rotatable sleeve 24 which is slidably mounted in a housing 22 integral with or secured to the casing 10 and is movable axially with the shaft. The shaft carries a pinion 12 meshing with a spur wheel 13 and is journalled in bearings 15 and 16. The non-rotatable oil seal 37 is urged by resilient means (not shown) into sealing contact with a ring 34 mounted on the shaft to rotate therewith. The sleeve 24 is sealed in the housing 22 by  0-rings in grooves 28, 29 and lubricated by oil supplied through holes 31 in the sleeve and 40 in a spacing ring 36. The seal 37, ring 36 and outer race of a bearing 33 are located in the sleeve by circlips 38 and 39. Rotation of the sleeve is prevented by a peg 26 engaging a groove 25 and a dust cover 27 is fitted between the sleeve and the housing 22.
Patent GB-983668-A (GB)
Title: Hydrocarbon cracking process
IPC: C10G29/20
Filed: 1963-02-04
Abstract: A continuous catalytic cracking process for liquid hydrocarbons which boil at temperatures up to 200 DEG  C., e.g. to make synthesis gas, comprises passing a mixture of hydrocarbon and water vapour, with or without oxygen, through an externally heated tube containing nickel catalyst, the hydrocarbon being given a preliminary treatment effective to remove dissolved elementary oxygen and/or oxygen compounds to reduce its tendency to polymerization during cracking. The hydrocarbon is heated under pressure to 150 DEG  to 250 DEG  C. according to its boiling range, held there for 5 minutes, or less, and flash distilled so that not less than 5% by weight, preferably 5 to 10% liquid residue remains, the vapour distillate being then cracked.  In a specific example, the liquid hydrocarbon comprised (by weight) 96% napthenes, 4% aromatics, 0.1% olefins and was steam-heated to 200 DEG  C. at 27 atmos. vapour pressure for 2 minutes.  The hydrocarbon was then expanded to 0.3 atmos. to evaporate 80% thereof, the vapours being suitable for catalytic cracking to synthesis gas.
Patent GB-181678-A (GB)
Title: Methods for the treatment of alum with ammonia in order to obtain sulphates of potassium and ammonium and free alumina
IPC: C01D5/00
Filed: 1922-02-15
Abstract: Gaseous ammonia is injected into an alum solution heated to a temperature near its boiling point or alternatively an aqeuous solution of ammonia may be introduced in the form of a spray. After the removal of the alumina thereby precipitated by filtration, the potassium and ammonium sulphates are separated by crystallization, and the mother liquor employed to dissolve more alum.  When the alum is obtained by hot lixiviation of crude material such as that obtained by treating leucite with sulphuric acid the precipitation may be effected advantageously directly while the solution is still hot.ALSO:A solution of alum is treated with ammonia under such conditions that the alumina is precipitated in a readily filterable form.  The alum solution is precipitated at a temperature near its point of ebullition, the ammonia is added gradually and the liquor is subjected to continuous agitation.  An aqueous solution of ammonia may be introduced in the form of a spray into the alum solution, or preferably gaseous ammonia is injected, in order to utilize the heat of solution.  After the removal of the alumina by filtration the potassium and ammonium sulphates are separated by crystallization, and the mother liquor employed in the treatment of more alum.  When the alum is obtained by hot lixiviation of crude material such as that obtained by treating leucite with sulphuric acid, the precipitation may be effected advantageously directly while the solution is still hot.
Patent GB-415072-A (GB)
Title: Improvements in or relating to valves
IPC: F16K47/02
Filed: 1933-02-14
Abstract: 415,072. Slow-closing valves. MASON, H. L., 103, King Henry's Road, South Hampstead, London. Feb. 14, 1933, No. 4488. [Class 135.] Relates to a slow-closing tap operated by a quick - pitch thread. A dashpot 14 in the cover 18 is closed by a leaky piston 15 on the valve-stem, fluid being admitted to the dashpot through a passage 9 in the spindle and the passage being closed during the closing movement, for example, by its outlet 13 being masked by a sleeve 17. In the form shown, the passage 9 communicates with the inlet 2 through openings 12 in the valve 6. In a modification, the quick-pitch thread is formed between the outside of the cover and a shield attached to the knob, and the sleeve 17 is self-centring and forms the bottom of the stuffing-box. Specification 303,770, [Class 135], is referred to.
Patent GB-449917-A (GB)
Title: A machine to transform pressure of a simple character into a rotating motive force
IPC: F16H25/00
Filed: 1935-02-13
Abstract: 449,917. Fluid-pressure motors. RAWLINGS, W. G., Drynham, Station Road, Netley Abbey, Hampshire. Feb. 13, 1935, No. 4575. [Class 122 (iii)] A fluid - pressure motor is provided with cam driving-gear which comprises a reciprocating carriage 27 carried by a rotary shaft 11 which carriage engages through rollers 30 a stationary cam 15 concentric with the shaft and an intermittently, fluid - pressure applied, pressure cam 36 mounted on a fixed support. The kinetic energy is obtained from the stationary pressure applied by the cam which does not move after the pressure is applied. A rigid frame 10 is provided with parallel shafts 11, 12, and the stationary-cam 15. Discs 17, 18 on the shaft 11 carry rollers, and discs 20, 21 in the planes of the discs 17, 18 carry metal plate teeth 22 which gear with the rollers. A quadrangular, two - part, guide bracket 23, 25 is mounted on the disc 18 towards the cam 15. Opposite corners carry rollers 25. The other corners carry guides 26 upon which the carriage 27 reciprocates through rollers 28. Edges and abutments on carriage plates 63 and guides respectively limit the movement. The carriage carries rollers 30 which engage the cam 15, and also rollers 31, 32. The cam 15 comprises inner and outer connected surfaces 33, 34. When the roller 31 engages the cam 36 which is periodically inclined by fluid-pressure to effect the rotation, the roller 30 engages the part 35 of the cam 15 and the carriage 27 reciprocates. During the rotation of the shaft 11 and the carriage 27, a roller 32 thereon engages a cam 38 carried on the plate 21, and cam 38 engages a roller 25 carried by the frame. Two cams 38 are arranged oppositely on the disc 21, and have cut-away parts 41 to prevent fouling. In a modification, additional guide rollers are provided on the slide 27, and rollers are mounted on the rectangular frame to help guide the slide 27. The cam 15 may be constructed as an eccentric and the cams 36, 38 correspondingly modified.
Patent GB-741149-A (GB)
Title: Improvements in or relating to safety devices for power presses
IPC: F16P3/24
Filed: 1953-02-19
Abstract: 741,149. Safety devices for power presses. BRITISH UNITED SHOE MACHINERY CO., Ltd., and CHOICE, F. C. Feb. 18, 1954 [Feb. 19, 1953], No. 4619/53. Class 80(4) In a clicking press of the type wherein a presser arm is swung across a cutting block to cover a knife placed on a workpiece, power means being provided to lower the presser arm on tripping a onerevolution clutch, a pair of hand actuated devices is provided one of which is wholly mechanical and the other of which acts through means including an electric solenoid, the two devices being interlocked and both having to be actuated to operate the press. As shown, the clutch is tripped by a solenoid controlled by a pushbutton switch 18, Fig. 3, housed in the presser arm 6, the hand actuated devices comprising a handle 51 which must be held depressed with one hand while a horizontally-slidable trip bar 20 is moved with the other hand. The bar 20 carries two collars 42, 44 between which lie parts 40 of a forked arm extending from a rocker lever 32 which is pivoted at 36 and engages a head 24 on a push rod actuating the button of switch 18. A similar rocker lever 28 is connected by' a link 38 to the lever 32 so that movement in either direction of the bar 20 depresses the switch button. Two spring plungers' 46 urge the bar to the central position shown, and shock-absorbing washers 50 limit its travel. The safety handle 51 is carried by a lever 56, which is urged to the raised position shown by a spring 'plunger 82 and has two depending lugs in each of which is slidable a pin 64, 72, the pins being loaded by leaf springs 66, 74 fixed to opposite ends of a slide pin 80. The pins co-operate with slots 68, 76 in the collar 44 to interlock the handle and the trip bar, so that the bar 20 cannot be shifted to close the switch 18 until the handle 51 is depressed to withdraw the pin 64 from the slot 68, while, in the shifted position, the pin 72 engages one of the slots 68 or 76, to prevent the plungers 46 returning the bar until the handle 51 is released. Since the clutch, and therefore the switch 18, must be released before it can be tripped again, the interlock mechanism ensures that the handle 51 and bar 20 must be actuated and released for each pressing operation. Specifications 518,822, 538,763 and 667,731, [Group VIII], are referred to.
Patent GB-140186-A (GB)
Title: Improvements in lock nuts and the method of constructing the same
IPC: F16B39/30
Filed: 1919-02-25
Abstract: 140,186. Percival, S., (Grip Nut Co.). Feb. 25, 1919. Locking nuts. - A flat depression 2 made across the upper face of a nut distorts some of the screw-threads and renders the nut self-locking. The depression is made by a flat tool in a press.
Patent GB-402044-A (GB)
Title: Improvements relating to light-sensitive apparatus
IPC: H01H47/24
Filed: 1932-02-17
Abstract: 402,044. Light-sensitive cells. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Feb. 17, 1932, No. 4760. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 18, 1932]. [Class 40 (iii).] A light-sensitive cell 2, illuminated by intermittent light, is in circuit with ohmic resistances 3, 10 and an alternating- current resistance 11 of such magnitude that compensating actions occurring on impulsive variation of illumination produce, between two points 13, 14 of the circuit, a voltage almost independent of the resistance of the cell. The voltage for the cell is obtained through rectifiers 12 fed from alternating current 5 of high frequency compared with the frequency of change of illumination. The alternating- current resistance is shown as a capacity, but may be an inductance. The resistance of the cell influences both the charge on the condenser and the compensating current flowing through the resistance 10 on a change of illumination, and, by correctly proportioning the resistances 3, 10, 11, these two effects can be so balanced that the influence of the cell resistance on the voltage across the resistance 10 is a minimum. The resistances are so dimensioned that the compensating current through the resistance 10 fades to approximately one tenth of its maximum value before the next compensating current is started. The cell may be at a distance from the rest of the apparatus and connected to it by a cable.
Patent GB-679449-A (GB)
Title: Improvements in apparatus for plucking or cutting tea and like vegetable growths
IPC: A01D46/04
Filed: 1951-02-28
Abstract: 679,449. Hedge - cutting; tea - gathering. STEPHENS, I. D. P. Feb. 28, 1951, No. 4892/51. Classes 6(ii) and 6(iii) Relates to a manually-held, power-operated machine, for cutting tea and like vegetation, comprising a handle 14 and two superimposed toothed plates, the upper of which reciprocates over the lower. According to the invention, the lower plate has relatively elongated teeth 11 which project beyond the shorter teeth 13 on the upper plate and guide the leaves to be cut. The teeth on both plates are asymmetrical, those, 11, on the lower plate having edges 41 on the side facing the handle which are substantially perpendicular to the axis of the handle, while the rear edges 42 are more inclined. The corresponding edges 43, 44 on the upper plate are similarly inclined and the cutting action occurs between the pairs of edges 42, 43 and 41, 44 respectively. The drive from an external motor (not shown) is through a flexible shaft connected to a stub-axle carrying a worm 37 which drives a combined wormwheel and crank-disc 36. The connecting rod 34 drives a hollow plunger 24 containing opposed pre-stressed springs 25, 26 embracing a rod 23 connected to the reciprocating plate so that the latter can slip on encountering obstructions. The cut leaves are collected in a pan 39.