baber/WOPTO huggingface dataset:
Patent GB-1264009-A (GB)
Title: Process and apparatus for analyzing particle size distribution of a dispersion of finely divided material
Inventor: OLIVIER JAMES PETER
IPC: G01N23/10
Filed: 1969-05-19
Abstract: 1,264,009. Measuring particle size photo-electrically. FREEPORT SULPHUR CO. May 19, 1969, No. 25516/69. Heading G1A. [Also in Division G2-3] Particle size distribution in a liquid suspension or emulsion is determined by continuously measuring the transmittance of X-rays through the suspension and converting this measurement into a quantity proportional to the concentration of suspended material and recording this on one co-ordinate of a graph, the other co-ordinate being programmed to indicate particle size at every instant. The X- rays from tube 1<SP>1</SP> are passed through collimator slits 3<SP>1</SP>, 4<SP>1</SP> and sample cell 5<SP>1</SP> before being detected by a detector 6<SP>1</SP>. The sample cell, containing the suspension may be made of transparent or opaque material and the detector may be a scintillation, proportional or geiger counter. The detector output is charged into a measure of concentration by converter 7<SP>1</SP> and this signal is recorded at 11<SP>1</SP> and supplied to controller 10<SP>1</SP>. Controller 10<SP>1</SP> also controls the operation of stepping motors 9<SP>1</SP>, 12<SP>1</SP> which moves the sample cell across the X-ray beam to decrease the sedimentation distance, and positions the other axis of the recorder to directly indicate particle size respectively. The controller may have a digital or analog output which output relates time and sedimentation distance in accordance with Stokes' Law. In a modification an X-ray tube with two outputs is used one of which is passed through a reference cell to a second detector. The outputs of the detectors are compared so that variations in intensity of the X-ray beam are nullified. There is also disclosed the construction and use of an analog controller which forms no part of the invention. This controller comprises a transparent rotatable drum having curves drawn on it. The curves are followed by photo-cells to provide mechanical outputs relating time and distance, Fig. 3 (not shown). Reference has been directed by the Comptroller to Specification 1, 158, 338.
Patent GB-518028-A (GB)
Title: Improvements in scholars' bags or satchels
IPC: A45F3/04
Filed: 1938-09-02
Abstract: 518,028. School bags. MYATT, T. H. Sept. 2, 1938, No. 25(363. [Class 133] A school satchel is provided with a centrally disposal strap 11 secured to the front of the bag below the flap 3a and carrying a ring 12 to which are attached the ends of adjustable shoulder 'straps 13 the looped lower portions of which engage rings secured to the back of the bag near the ends thereof. The flap 3a is stiffened by a metal strip 7, and a pocket 9 with sliding-clasp closure 10 is attached to the front.
Patent GB-1223149-A (GB)
Title: Improvements in or relating to method and apparatus for applying labels to articles
Inventor: LAXSON J T
IPC: B65C5/02
Filed: 1968-05-29
Abstract: 1,223,149. Platen presses. SOUTHERN TEXTILE MACHINERY CO. Inc. 29 May, 1968 [29 May, 1967], No. 25666/68. Heading B6C. [Also in Division B8] In apparatus for printing and labelling (Division B8) flat articles the printing mechanism comprises a vertically reciprocating stamp 84 which can be adjustably positioned along rods 61, 62 and also angularly by clamp 72. The stamp is reciprocated by cam means 104, 106 in timed relationship with the positioning of an article on a conveyer moved intermittently and the mechanism incorporates an inking pad 110 which is brought into contact with the stamp 84 when the latter is in its raised position by cam and follower mechanism 114 and 130 and 118 and 134.
Patent GB-701694-A (GB)
Title: Improvements in or relating to safety lamp locking arrangements
Inventor: LLOYD HARRY
IPC: F21L23/00
Filed: 1950-10-20
Abstract: 701,694. Safety lamps. MINISTER OF FUEL & POWER. Oct. 22, 1951 [Oct. 20, 1950], No. 25670/50. Class 75 (4) In a flame or electric safety lamp such as a miner's lamp of the kind comprising an upper and a lower portion screwed together the lower portion is provided with a series of latches 4 which engage under spring pressure with ratchet teeth formed on the upper portion to lock the portions together and fixed pole pieces 5 are interspaced between the latches, the arrangement being that when the pole pieces are magnetized by applying a multi-pole magnet 10 having its poles disposed to correspond to the pole pieces 5, the latches are retracted along different lines of movement so that the two lamp portions can be unscrewed. Each latch is in the form of a lever pivoted at 6 and having a heel on which a spring 7 presses and having a nose 9 projecting inwardly to engage the ratchet teeth. The pole pieces 5 have curved nose portions extending alongside and externally of the latches for part of the length thereof.
Patent GB-188157-A (GB)
Title: Improvements in means for connecting warps to beams or rollers
IPC: D02H13/28
Filed: 1921-09-29
Abstract: 188,157. Tillotson, S. Sept. 29, 1921. Connecting warp to beams. -Relates to that method of connecting warps to beams or rollers wherein a wrapper of canvas &c. secured to the beam &c. and furnished with eyelets &c. i, Fig. 2, for the warps is used, and consists in making such wrapper adjustable in effective width. The wrapper may be made in sections c, c<1>, Figs. 2 and 3, which are arranged so as to overlap at the centre, as shown, when the beam flanges are used at less than their maximum distance apart, the sections being provided at one end with loops to receive thin metal bars &c. d engaging a longitudinal groove e in the beam of sufficient width to accommodate one bar behind another. The groove may be made at an angle to the radial, and the wrapper may comprise more than two sections. In a modification, the ends of the wrapper sections are provided with eyelets to engage hooks f, Fig. 4, arranged in the beam groove. In this modification, the wrapper may be in one width. surplus width being folded or doubled over, and the eyelets of such folded-over portions being engaged over the hooks above those of the under portion. The hooks f may be stamped out from a metal strip g provided with projections h pressed into the beam.
Patent GB-793880-A (GB)
Title: A turntable fitting for the mounting of cabinets and other articles
IPC: A47C3/18
Filed: 1955-09-09
Abstract: 793,880. Turntables for furniture. GREENMAN, C. April 13, 1956 [Sept. 9, 1955], No. 25869/55. Class 52(3) A turntable for cabinets &c. has upper and lower plates 1, 2 with annular grooves 3 formed by pressing inner and outer ribs 5, 6 connected by an arcuate bridge portion 7 of which the re-entrant face forms the groove in which run balls spaced apart by a floating locating ring 14 with apertures for the balls. The plates have dished centre portions 9, 10 and a cupped retaining member 11 passing through an aperture in part 10 has a flange 12 and is non-rotatively secured to plate 1 by a rivet 13, there being some friction between member 11 and plate 2 opposing rotation. A friction washer may be provided between plate 2 and flange 12.
Patent GB-1527073-A (GB)
Title: Signalling systems
IPC: H04B3/54
Filed: 1975-09-12
Abstract: 1527073 Selective signalling SANGAMO WESTON Ltd 12 Sept 1975 [12 June 1974] 26002/74 Heading G4H A receiver (for use with a system in which information signals are transmitted over an A.C. mains supply) comprises means, including two detectors, for comparing the amplitudes of successive half cycles of a given polarity of the mains supply. Fig. 3, shows a detector with the mains applied across L, N, the two halves of the circuit being the same apart from the time constants of the RC circuits R2, C2 and R2<SP>1</SP>, C2<SP>1</SP> and the threshold levels of the transistors T1, Tl<SP>1</SP>. R4, C3 and R4<SP>1</SP>, C3<SP>1</SP> are filters providing some immunity to spikes. The detector is followed by logic to detect Ps<SP>1</SP> absent followed by Qs<SP>1</SP> present in the next cycle, and such that, if Qs<SP>1</SP> is not present in this next cycle, the continued absence of Ps<SP>1</SP> is ignored until Ps<SP>1</SP> has returned for one or more cycles. Adverse effects of interference depressions are thus obviated. A modified detector produces an output from the junction of R2 and R3 via a capacitor. A selected device, e.g. street lamp, can be switched on or off by reducing the amplitude of the half cycles of the given polarity in a selection of the odd-numbered ones of 20 consecutive cycles of the mains supply to address the receiver at the device and choose between on and off. The selection referred to always includes the first cycle and includes 4 other cycles in the case of "off" codes and 5 other cycles in the case of "on" codes, the "on" and "off" codes for a given device being complementary (apart from the "start bit" of the first cycle), every code differing from every other code by at least two signals. The logic in the receiver is followed by a counter which is started by the "start-bit" and has decoded outputs connected by code patching and logic to reset the counter if the sequence received is not addressed to this receiver. In a modification, the counter, once started by the "start bit", counts right round without resetting, any non- correspondence in the received sequence resetting a flip-flop which, if still set, finally initiates the switching operation.
Patent GB-519021-A (GB)
Title: Improved jacquard mechanism for looms
IPC: D03C3/24
Filed: 1938-09-06
Abstract: 519,021. Jacquards. BOUCHER & CO., Ltd., and OSBORNE, C., (Representative of OSBORNE, C.). Sept. 6, 1938, No. 26077. [Class 142 (i)] The tuft-yarn carriers of a pile carpet &c. loom are connected by wires &c. 11 to lifter strips 9. These strips are rectangular in section and carry transverse pieces 14 by which they are raised to a high level by a straight edge,15, levers 18, and cam 24. One needle 28 in each of several vertical rows is then advanced beneath the pieces 14 and arrests each strip 9 and the corresponding tuft - yarn carrier in selected position when the straight edge 15 falls. The needles 28 are plain rectangular bars passing at'one end through slots 29 in a plate 6 near the strips 9 and bent down at the other end 30 to engage grooves 44 in one or other of the grill bars 43. The needles are notched at 52 and, when lifted by the wires 32 and card cylinder 34, engage a locking bar 51. The cylinder 34 is raised by levers 38 and a cam 41, and the grill 42 is moved horizontally to project the selected needles by a third cam on the shaft 25 and springs.
Patent GB-1411704-A (GB)
Title: Diversity radio receiver
IPC: H01Q21/24
Filed: 1973-05-31
Abstract: 1411704 Diversity reception; aerials AUSTRALIA POSTMASTER GENERAL'S DEPT 31 May 1973 [1 June 1972] 26133/73 Headings H4L and H4A A portable radio receiver includes within its cabinet a pair of orthogonally arranged ferrite core aerials connected to respective receiver channels provided with a common A.G.C. circuit so that the channel providing the strongest signal is selected. One of the ferrite rods may be tilted to enable the cabinet dimensions to be reduced. The arrangement provides satisfactory reception in the presence of fading.
Patent GB-856909-A (GB)
Title: Apparatus for the separation of potatoes and stones
IPC: B07B13/00
Filed: 1959-07-30
Abstract: 856,909. Washing granular materials. ROMLOV, L. S. H. July 30, 1959. No. 26223/59. Class 82(2) Apparatus for the separation of potatoes and stones comprises a vessel which is filled with water to a predetermined level, a horizontal conveyer mounted in the vessel below the water level, means for supplying potatoes and stones to the upper side of the conveyer, means for supplying water at the discharge end of the conveyer and for withdrawing water at the trailing end of the conveyer in zones below the water level so as to produce a current of water along the conveyer, and means for removing potatoes and stones at the trailing and discharge ends respectively of the conveyer. Potatoes and stones are supplied to the vessel delimited by walls 3, 4 along a path formed by opposedly rotating rollers which remove tops or the like from the potatoes, and fall into enclosure 19. Impurities such as old potatoes which float on the water in this enclosure are removed by a conveyer, while the potatoes and stones fall on to the upper run of belt conveyer 13 which travels in the direction of arrow 48. A current of water travelling in the direction of arrow 37 is produced by pump 33 which withdraws water from the righthand (trailing) end of conveyer 13 and pumps the water through conduit 35 to below the left-hand (discharge) end of conveyer 13. Thus, the potatoes and stones on conveyer 13 are subjected to a countercurrent of water, the stones being carried by the conveyer to the left and delivered to box 25 by conveyer 21 while the potatoes are carried by the current of water to the right and delivered to box 26 by conveyer 22. While on conveyer 22, the potatoes may be douched by head 49. When the potatoes leave conveyer 22 they fall on to belt 27, which absorbs moisture therefrom, before arriving in box 26. Sand and gravel sink to the bottom of the vessel and are carried away by screw conveyers 11, 12.
Patent GB-936053-A (GB)
Title: Shaft couplings
IPC: F16D3/06
Filed: 1961-07-20
Abstract: 936,053. Universal joints. L. P. CROSET. July 12, 1962 [July 20, 1961], No. 26327/61. Class 80 (2). A universal joint comprises two units each having a hub member 1 formed with a set of part cylindrical grooves 2 and an outer member 3 having corresponding grooves 4, a set of balls 5 is located in each set of grooves by a cage 6, 7 having part-spherically recessed portions 13 to locate the balls and projections 11, 12 engaging stop faces 10 on one or both of the members to limit axial rolling of the balls and relative axial movement of the outer and hub members. The edges of the ball grooves 2 and 4 are tapered to act as stops for tapered projections 11, 12 on the two parts of the ball cages which are riveted together. The joint provides limited axial movement and angular misalignment is limited to about one degree. The projections 11, 12 may be in opposed radial directions or in the same radial direction on the two sides of the cage. The outer member may be in two parts bolted together or in one piece. Specification 839,894 is referred to.
Patent GB-707101-A (GB)
Title: Luminescent materials
Inventor: RANBY PETER WHITTEN
IPC: C09K11/75
Filed: 1951-11-09
Abstract: 707,101. Luminescent materials. THORN ELECTRICAL INDUSTRIES, Ltd. Oct. 29, 1952 [Nov. 9, 1951], No. 26343/51. Class 39(1) A luminescent material comprises a matrix of the elements Mg, Li, Sb and O 2 , the proportions by weight of the metals present in the matrix, expressed as the oxides, being between 20 and 60 per cent, preferably between 25 and 40 per cent, of MgO, between 5 and 35 per cent, preferably between 10 and 20 per cent of Li 2  O, and between 30 and 65 per cent, preferably between 45 and 60 per cent, of Sb 2 O 3 , the matrix being activated by Mn or U or both. The proportion by weight of Mn or U or both incorporated in the matrix is between 0.001 and 10 per cent, the proportion by weight of Mn being not more than 0.5 per cent and the proportion by weight of U being not more than 3 per cent when both are present. The material is prepared by heat treating at a temperature of 700 to 1250‹C an initial mixture of the oxides, or compounds which decompose to the oxides on heat treatment, of Mg, Li, and Sb, and a compound of Mn, e.g. manganese chloride, or U, e.g. uranyl nitrate, or both, the upper limit of the proportion of Sb 2 O 3  being 70 per cent in view of possible losses of Sb by volatilization. Mn produces deep red luminescence under U.V. radiation of 3650 or 2537A, U a green luminescence, and both a yellowish fluorescence. Examples are given.
Patent GB-797551-A (GB)
Title: Improvements in or relating to the electrodeposition of polymeric material from aqueous dispersions thereof
IPC: C25D13/24
Filed: 1955-09-15
Abstract: 797,551. Electrodeposition of polymeric materials. DU PONT DE NEMOURS & CO., E. I. Sept. 15, 1955 [Oct. 11, 1954], No. 26504/55. Drawings to Specification. Class 41. In the electrodeposition on to a metallic support of a polymeric material from an aqueous dispersion, the dispersion is continuously removed from the electrolytic cell and passed through an ion-exchange resin of the weak carboxylic acid type buffered to pH 6 to 7 for sufficient time to change the pH of the dispersion to a value of from 6 to 8, and the treated dispersion is then returned to the cell. Typically the process is applied to the codeposition on a wire of polytetrafluoroethylene and polyisobutylene as in Specification 797,001, the overflow from the electrolytic cell being passed through a bed of a weak carboxylic acid ion exchange resin buffered with citric acid and disodium hydrogen phosphate to pH 6.4 to 6.6, and the so-treated effluent is pumped to a storage tank where the concentration of the polymeric codispersion is brought to a concentration of 30-50 per cent solids by suitable addition before return to the cell.
Patent GB-532858-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1939-09-23
Abstract: 532,858. Tobacco pipes. BLUM, H. T. Sept. 23, 1939, No. 26512. [Class 130] A tobacco pipe bowl has a false bottom comprising a disc 21 which can be raised and lowered by rotating a tubular member 14 mounted in the base of the bowl and engaging a screw 18 secured to the disc which is prevented from rotating by lugs 23 engaging grooves 8. The disc is perforated or there is a gap between its edge and the bowl. The tubular member 14 has a flange 16 which is held by spring fingers 13 of a bush 10. Alternatively a split ring engages a groove in the tubular member and the outside of the bowl, the flange 16 bearing on the inside of the bowl.
Patent GB-773944-A (GB)
Title: Zirconia cement and products made therewith
IPC: C04B35/48
Filed: 1955-09-16
Abstract: A refractory cement composition comprises 90-99 per cent zirconia (of which at least 80 per cent is stabilized with 3 to 6 per cent of lime) and the remainder aluminium phosphate of a pH not lower than 3. Refractory tubes can be made from the cement itself by filling a stoppered cardboard tube with a slurry of the cement, closing the tube and rotating to deposit the cement on the inside walls and drying.  Abrasive bodies are obtained by mixing abrasive particles e.g. diamond, with the cement, shaping and allowing to set.  U.S.A. Specifications 1,828,211 and 2,535,526 p  are referred to.
Patent GB-709230-A (GB)
Title: An improved centrifugal pump and a check valve assembly therefor
IPC: F04D29/14
Filed: 1951-11-14
Abstract: 709,230. Stuffing-box substitutes. WILFLEY & SONS, Inc., A. R. Nov. 14, 1951 [May 31, 1951], No. 26645/51. Class 122(5) In a centrifugal pump in which an annular gap G between the impeller shaft 18 and the pump casing is closed when the pump is at rest and opened when the pump is running by the rim 73 of a valve member 72 moving into and out of sealing contact with the pump casing 34 surrounding the gap, the valve member comprises a hub 75 gripping a sleeve 39 rotatably secured to the shaft and connected by a flexible diaphragm 74 to the rim 73 which is axially movable by flexure of the diaphragm and is urged into the closed position by a spring 61 pressed against an annular disc 70 engaging and carried by the rim 73, and into the open position by speed-controlled actuating means. The disc or backing plate 70 has a coned flange 78a in which a correspondingly shaped portion of the rim 73 is sprung and held against rotation by notches thereon engaging lugs on the interior of the flange. The spring 61 is compressed between the backing plate 70 and the hub 59 of a spider 52 having two diametrically opposed arms 62 carrying pivotally thereon weighted arms 67 whose free ends operatively engage lugs 80 on the backing plate 70 to move it under centrifugal force against the spring 61 when the shaft 18 rotates. The valve member hub 75 grippingly engages, and the spider hub. 59 is mounted on and bolted to, the sleeve 39 which is secured to the shaft by a set pin 55 and axially split into halves bolted together. Leakage through the gap G when the pump is running is prevented by the back pressure created by an auxiliary impeller on the shaft 18. Specification 432,838 is referred to.
Patent GB-355961-A (GB)
Title: Improvements in starting gear for internal combustion engines
IPC: F02N7/10
Filed: 1930-09-06
Abstract: 355,961. Turning-gear. BLACKSTONE, G. M., CARTER, F., CARTER, E., and CARTER, W. E., Rutland Engineering Works, Stamford, Lincolnshire. Sept. 6, 1930, No. 26661. [Class 7 (v).] In an engine starter in which a small auxiliary engine c is geared to the main engine through a pinion. c<2>, spur wheels d<1>, d<2> on a slidable shaft d, and a spur wheel d<3> on the main engine shaft, the wheels d<1>, d<2> are brought into engagement with the wheels c<2>, d3 by a lever h held in the starting position by a spring stud g, Fig. 3. A lever e, e<1> bearing on a button g<2> engaging the stud g is held by a spring f in engagement with a cam on the shaft d. When the speed of the main engine increases to a predetermined extent, the inertia of the lever e, e<1> overcomes the resistance of the spring f and the stud g is depressed to release the lever h. The pinion c<2> is in frictional engagement with a disc on the shaft of the auxiliary engine. Specification 342,472 is referred to.
Patent GB-258109-A (GB)
Title: Improved method of and means for reducing or pulverizing coal and other materials
IPC: B02C13/00
Filed: 1925-10-28
Abstract: 258,109. Lykken, H. G. Oct. 28, 1925. Density separators. - A stream of pulverized coal or other material is projected from the circumference of a rotor and dispersed by impact upon impacting members, and the finer particles of the dispersed material are separated from the coarser particles by means of an air current. The material is thrown horizontally against impact members or bars 20,21 by the rotor 2 and passes into a space 26 above which is an expansion chamber or outer casing 27 of a separating-device. The casing 27 has an end wall 28 from which leads an outlet connection 29 having a top plate 30 and a discharge outlet 31 connected with a conduit 50 leading to an exhaust fan 51. The inner conical chamber 32 is open at the, top and bottom and is supported by a rod 35 which is secured to a, spider 36 on the cone 32 and may carry at its lower end a conical member or spreader 37 the upper surface 38 of which converges with reference to the discharge end 39 of the cone 32. By means of a nut 40 on the upper end of the rod 35, the position of the cone can be adjusted. A circular series of vanes or blades 41 is secured within the casing 27 at the upper end thereof and extend inwardly towards the upper open end 33 of the cone 32 so that the air and suspended particles are projected inwardly to a tangential direction into the space over the cone 32 and into the cone so as to produce a whirling or centrifugal action. The heavier particles pass downwardly through the discharge opening 34, while the fine and dry particles are drawn upwardly into the outlet 29 and discharge 31 to the fan 51 which conveys them to a furnace &c.