baber/WOPTO huggingface dataset:
Patent GB-240609-A (GB)
Title: Improvements in or relating to apparatus for filling bags with flour or other material
IPC: B65B39/08
Filed: 1924-04-07
Abstract: 240,609. Richardson, H. April 7, 1924. Sack-holders.- Relates to apparatus for filling bags with flour or other material. A closed annular two-part clamp is disposed round the mouth of the hopper and the parts are moved axially towards each other to clamp the edge of the bag. As shown, a frame 1, which may be vertically movable, carries a lower clamp member 12, and, after the sack has been drawn over the flange 13, is caused, by means of toggle levers 9, 10, to descend and grip the bar 24 as shown in Fig. 5. The toggle links 10 each comprise a cylinder 16 with a lateral lug to which the link 9 is pin jointed, and containing a spring so that the clamp can be closed independently of the thickness of the bag. Both links 9 are simultaneously operated by a bar 8 encircling the discharge tube 2. In use, the bag is drawn over the flange 13 and secured, and the frame 1 is raised until the mouth of the discharge tube 2 is near the bottom of the bag, and filling is effected by a propeller 26. The bag may be caused to descend during filling. Shaking apparatus may be associated with the clamp by the closing of the latter. Two hopper discharges may be associated with a single weighing machine. The gripping parts of the clamps may be serrated or may have rubber surfaces.
Patent GB-773709-A (GB)
Title: Improvements in or relating to backward travelling wave oscillator tubes
IPC: H01J25/46
Filed: 1955-03-25
Abstract: 773,709. Travelling wave tubes; space charge wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 25, 1955 [March 25, 1954], No. 8866/55. Class 39(1). In a backward wave oscillator a first electron beam interacts with the field of the delay line, and a second electron beam travels parallel to in the same direction as the first beam but with a lower velocity than that of the first beam ; the first beam interacts with the delay line to generate a backward wave while the two beams interact to give space charge wave amplification and the operating frequencies are so chosen that the. spade charge wave amplification-frequency characteristic is of opposite slope to that of the backward wave interaction of the first electron beam and the delay line so that the output power is maintained constant over a wide frequency range. The relative velocities of the beams are such as to allow such interaction between them as will produce a growing space charge wave. If beam 4, Fig. 2, is coupled to delay line 7 while beam 5 is not coupled to the delay line then the variation in output power over the electronic tuning band characteristic of the beam 4-delay line system is compensated by an opposite variation in power output with frequency characteristic of the space charge wave amplification system so the power output of the tube as a whole is maintained constant over the electronic tuning band. The velocity of beam 5 is kept constant. The delay line 7 is interdigitated and supports a spatial harmonic component of negative phase velocity for interaction with beam 4. Envelope 1, collector 6, delay line 7 and the anodes of the guns are grounded and an annular permanent magnet 14 focuses the beams. If in a modification, Fig. 4 (not shown) both beams are equally coupled to the delay line then the output frequency is intermediate the frequencies corresponding to the voltages of the two beams, i.e. f1 + f2. Operation of Fig. 4 is otherwise the same as in Fig. 2. Specification 699,893 is referred to.
Patent GB-762756-A (GB)
Title: Improvements in or relating to work-holding devices and like appliances
Inventor: SLADE KENNETH
IPC: B23Q1/54
Filed: 1953-03-31
Abstract: 762,756. Work-holders. SPEED TOOLS, Ltd. March 30, 1954 [March 31, 1953], No. 8940/53. Class 83 (3). A work-holder comprises a work-attachmentarm 15, Fig. 1, connected for universal movement to a base 22, first clamping-means 33, 37 for restricting the ease of movement of the arm, and second clamping-means 39 for rigidly clamping the arm to the base. The arm projects from a ball 16 held between body-halves 12, 13 which also embrace a collar 21 on the base 22. Tightening of the nut 37 compresses the rubber pad 33 to hold the assembly lightly together. When the arm is in adjusted position, the nut 39 is tightened to lock the assembly together. In a modification, the first clamping-pressure is applied to the ball 56, Fig. 4, by a nut 64<SP>1</SP>, and spring 63, and final clamping is by rotation of an eccentric 58,
Patent GB-247776-A (GB)
Title: A four position adjustable chair
IPC: A47C17/16
Filed: 1925-04-04
Abstract: 247,776. Knights, T. H. April 4, 1925. Bedsteads convertible into seats comprise a canvas seating mounted on a chair frame to assume four positions forming an ordinary chair, a lounge chair with inclined seat and back, a bed, with the canvas horizontal, and a rest chair on the addition of a band of canvas across the arm rests to serve as a back rest. Canvas d or like fabric is attached to the cross bar e at the back, being held in position by cords k attached thereto and to the cross bar m, and then back under the seat where it is attached to a cross bar g. Ropes h connected at each side to the bar g pass over a roller c<1>, over front wheels 2 and then over wheels b<3> on a bar b hinged at the lower end to a downward extension c of the back rest hinged at c<1> to the frame, and is finally connected to pins i on the frame. On lowering the back, the canvas is automatically adjusted in position; when horizontal, the back is supported on legs hinged thereto. Rests, back.-A canvas band placed across the arm rests on hooks o serves as a back-rest when the back and seat are horizontal, the back a then serving as a leg-rest.
Patent GB-251089-A (GB)
Title: Improvements in or relating to rail chairs or tie plates for tramways or railways
IPC: E01B9/46
Filed: 1925-04-06
Abstract: 251,089. Wrightson, S. S., and Matthews, C. R. April 6, 1925. Chairs and separate jaws; chair plates. - The rail-engaging jaw J pressed up from the chair base P has the metal broken through on one side only and is pressed up to a dome with a recess for the rail, forming a double ogee lip, so that the pressure of the rail is taken up by a direct shear of the metal. When a lug is provided for a key, it is similarly formed. When the other side of the rail is engaged by a clip C secured by a bolt B, a tongue T, Fig. 2, is formed on the base P to engage the head of the bolt. In a modification, Fig. 5, the tongue T<1> is formed from an embossed part so that it does not project below the chair base, while the clip C<1> has a wedge-shaped projection W engaging between the rail and the bolt.
Patent GB-565162-A (GB)
Title: Improvements in a pneumatic tyre
IPC: B60C9/14
Filed: 1943-06-09
Abstract: 565,162. Pneumatic tyres. UNITED STATES RUBBER CO. June 9, 1943, No. 9258. Convention date, Sept. 10, 1942. [Class 144 (ii)] The carcase of a pneumatic tyre cover is formed of a number of plies of strain-resisting elements each enclosed in a layer of plastic composition, the composition enclosing some or all of the plies in the region of the crown having a greater resistance to fatigue than that used for the remainder of the carcase. The tyre shown comprises an outer breaker strip 12 coated with high - grade natural rubber composition, and cord fabric plies 19 of which only the central portion y underlying the tread is coated with this composition, the remaining parts 21 forming the sides of the carcase being coated with low-quality rubber or rubber-like compositions, rubber reclaim or synthetic rubber. The outer ply 12 may extend partly down the sides of the tyre. Some of the inner plies, which are not materially affected by the heat generated in the tyre, may be coated throughout with the low-quality rubber or like composition.
Patent GB-568134-A (GB)
Title: Improvements in and relating to liquid pressure-actuated reciprocating pumps
IPC: F04B53/14
Filed: 1943-06-09
Abstract: 568,134. Reciprocating pumps. HOLMES & CO., Ltd., W. C., COOPER, C., and INGHAM, C. June 9, 1943, No. 9283. [Class 102 (i)] In a multi - unit reciprocitiiig pujnpjng apparatus, particularly for bringing gases and/or vapours into intimate contact with water, as described in Specifications 331,592, '331,818, [b th in Class 55 (ii)], and 357,712, [Group XII], the inlet 6 of each liquidpressure-operated pump A is connected with a compartment 27 constituting a source of liquid to be pumped which is separate from the other compartments, the pumps delivering simultaneously, but separately to their respective compartments. The actuating pressure liquid may be supplied by pipes, 28, 28a from a doubleacting pump 29 operated by an engine 31. This pressure liquid is supplied to a chamber 1 containing a piston or diaphragm 12 and connected with a valve box 4 provided with non- return inlet and outlet valves 8, 9, the inlet 6 carrying a strainer 7. A dashpot effect may be obtained by means of recesses 13, 13a in the piston 12 co-operating with projections 14, 14a in the chamber 1.
Patent GB-659124-A (GB)
Title: Curb and motor support for centrifugal extractors
IPC: D06F23/04
Filed: 1949-04-05
Abstract: 659,124. Centrifugal-separators. JOHNSON, O. W., and SOMMERHALTER, G. O. April 5, 1949, No. 9284. [Class 23] In a strainer separator comprising a curb 15, a basket 18 mounted on a vertical shaft 19, a motor 28 driving a vertical shaft 27, and mechanical driving connections between the shafts, the curb and motor are connected by a rigid link 62 and are independently pivoted to swing about centres on the same level. The curb is supported by three links 12 having flexible end couplings, and the motor is carried by a support 29 pivoted at 50 to a support pillar for one. of the links 12 The link 62 has universally jointed ends, and its attachment to the motor support 29 permits adjustment of the tension of the drive belts 25. The basket may be braked by a band 23 operated by a lever and engaging the drive pulley 21 on the shaft 19. The curb is provided with a hinged cover 17.
Patent GB-590135-A (GB)
Title: Improvements in or relating to condensers or reducing devices for drafting mechanismfor textile fibres
IPC: D01H5/72
Filed: 1945-04-13
Abstract: 590,135. Sliver guides. CASABLANCAS HIGH DRAFT CO., Ltd., and NOGUERA, J. April 13, 1945, No. 9299, [Class 120 (i)] The supporting face 3 of a sliver guide or collector of approximately triangular prismatic shape is formed with a recess 10 extending over substantially the width of the face at the inlet end 11 and merging into the face towards the outlet end, thereby affording a clearance between the face and the associated roller 4 to prevent loose fibres being nipped therewith consequent unthreading of the collector. The feature may be applied to both upper and lower faces of the collector.
Patent GB-155498-A (GB)
Title: Railway block instrument control lock
IPC: B61L11/04
Filed: 1920-03-31
Abstract: 155,498. Roe, N. P. March 31, 1920. Signalling-instruments, interlocking; interlocking hand levers and signalling instruments by keys. A block instrument is provided with an attachment operatively connected with the handle so that a control key may be withdrawn only when the instrument is normal; other keys for unlocking appropriate signal levers or for use in Hopper's instruments for releasing keys at a distant signalframe may be released if the control key is in the lock and the instrument is set for corresponding traffic. The control key may be used in the manner described in Specincation 155,680 for breaking the bell-circuit. The attachment 35 includes a slide 5 formed in two parts and having a link 4 to the instrument spindle 3, so as to be movable to left or right as the handle is rocked. A control key inserted in a keyhole 10 raises a double bolt 7 to release the slide 5. If the instrument is normal, the key may be rotated and registers with a notch 8 in the slide 5 and may then be withdrawn. The bolt 7 falls as the key is turned and locks the slide 5. Hence the instrument cannot be used to receive or despatch a train until the control key is replaced. If then the instrument is set for receiving or sending a train, the control key can be rotated sufficiently to allow one or other of the members of the bolt 7 to fall and engage a notch in the slide 5, and bring either notch 13 or 29 into register with the slide 12 or 28 according to the direction in which the handle 2 is set. The appropriate key in the lock-attachment may then be rotated and withdrawn to unlock the handlever required or for use in a Hepper instrument. The other key and the control key are meanwhile looked in the lock.
Patent GB-609112-A (GB)
Title: Improvements in non-skid surfaces for roadways and the like
IPC: E01C5/22
Filed: 1946-03-26
Abstract: 609,112. Paving blocks. CRAWFORD, A. E. B. March 26, 1946, No. 9341. [Class 87(i)] A non-skid or other metal road stud a of box-like form has the diagonally opposite halves of two opposite depending flanges cut away to receive rebated wood blocks b, c in adjacent rows.
Patent GB-701300-A (GB)
Title: Improvements in and relating to a barge or other ship provided with means for filling its hold with dredged material
IPC: E02F7/04
Filed: 1951-04-23
Abstract: 701,300. Loading vessels with solids by currents of liquid. COOPERATIVE VERENIGING MINERAAL TECHNOLOGISCH INSTITUT U.A. April 23, 1951 [April 28, 1950], No. 9438/51. Class 78 (4) [Also in Group XXXIII] In the arrangement illustrated for filling the hold 1 of a hopper barge with dredged material conveyed by a current of water through pipes 4, 5, screens 12 above the hold are so constructed, and so arranged relatively to the discharge openings 6, 7 of the pipes, that the discharge from the pipes spreads in a thin layer over a large area of the screens. This causes partial separation of the solids on the screens, the separated solids being washed through holes 13, Fig. 3, into the hold in a large number of small streams which do not cause turbulence of the water in the hold so that material is not washed over the sides of the hold with the discharging water. The discharge openings 6, 7 of the pipes 4, 5 are directed into the angles between the screens 12 and their upwardly bent margins 14 at an angle to the margins so that the discharge is deflected from the margins 14 in a number of jets 15 as indicated in Fig. 3. The screens 12 preferably slope slightly downwardly towards the side walls of the hold as shown and their lower edges may lie inside or outside the overflow edge of the holds. The screens may be secured to the supply pipes, to the barge, or to both.
Patent GB-1072230-A (GB)
Title: Roof support assembly
Inventor: ANDREWS THOMAS DESMOND HUDSON
IPC: E21D15/58
Filed: 1965-03-05
Abstract: 1,072,230. Mine roof support assemblies. DOWTY MINING EQUIPMENT Ltd. April 26, 1966 [March 5, 1965], No. 9523/65. Heading F1P. A roof support assembly, Fig. (not shown) includes a plurality of roof supports each having at least one support prop (1) and each being connected to a pressure liquid supply line (4), a first return line (10) containing a release valve (9) and a fixed or variable volume chamber (11), and a second return line (7) having a pressure relief valve (6). When the setting valve (5) is closed the output from a pump (3) supplying the line (4) is by-passed through a jet pump (13) connected to the first return line (10) and having an outlet to a reservoir 8, whereby liquid returning from the prop (1) is induced to flow through a non-return valve (12) to the reservoir (8). Each roof support may have a separate chamber e.g. an accumulator.
Patent GB-798946-A (GB)
Title: Improvements in or relating to starting devices for internal combustion and other engines
IPC: F02N15/06
Filed: 1955-04-01
Abstract: 798,946. Engine starters. JONES, T. R. April 3, 1956 [April 1, 1955], No. 9558/55. Class 7(5) A clutch member 11 movable axially into engagement with a co-operating, member on the drive shaft 9 of an I.C. or other engine is carried by an axially - slidable shaft 8 supported in a sleeve 5 rigid with a pinion 4 which is axially stationary and is rotated by a smaller pinion 3 on the shaft of a starter motor 1. Displacement of the shaft 8 is effected by means of a diametrical pin 18 which is held in position in the shaft by a set screw 18a and rides in helical slots in the sleeve; a multi-start screw thread may be used instead of a pin-and-slot device. As shown, a claw 12 engages a pin 13 on the shaft 9, and an inclined surface 16 causes retraction of the member 11 when the engine starts up.. The end of the shaft 9 enters a recess 15 in the member 11, and a brake pad 19 prevents rotation of the member until it is engaged. The clutch may be of the plate or cone type. To allow clutch engagement if the claw is directly opposite to the pin, the latter may be spring mounted so as to move axially, Figs. 2 and 3 (not shown), the claw and pin may be replaced by toothed member, Fig. 4 (not shown), and to cushion the impact of the clutch engagement, the pinion 4 may drive the sleeve 5 through springs 34, Fig. 5, mounted in pockets 35 between teeth 36, 37 on the pinion and sleeve respectively.
Patent GB-1361882-A (GB)
Title: Catalyst compositions for reforming hydrocarbons
IPC: B01J23/755
Filed: 1972-03-01
Abstract: 1361882 Reforming catalyst PULLMAN Inc 1 March 1972 [4 March 1971] 9566/72 Heading B1E [Also in Division C5] A catalyst composition is a solid mixture comprising zirconia, nickel as metal or oxide in an amount of at least 0.1% wt. calculated as oxide, cobalt as metal or oxide in an amount of at least 0.2% wt. calculated as the oxide, the combined amount of nickel and cobalt being at least 1.0 wt. % and the ni:Co ratio being 1:15 to 9:1. Suitably, there is 0.2-30% wt cobalt, 0.1 to 30% wt nickel, a total of nickel and cobalt of 1.5 to 25 wt %, a Ni : Co ratio of 1:10 to 6:1 and the remainder of the composition is substantially zirconia. The Examples describe compositions in which the metals are initially in oxide form but which are reduced with hydrogen before use and in which the zirconia contains small amounts of calcium oxide, silica, titania and ferric oxide.
Patent GB-1131331-A (GB)
Title: Improvements in materials suitable for use in building construction
Inventor: POLLEY STANLEY THOMAS
IPC: C04B33/13
Filed: 1966-03-04
Abstract: 1,131,331. Bituminous compositions. ESSO RESEARCH & ENG. CO. 18 Jan., 1967 [4 March, 1966], No. 9636/66. Heading C3N. Building construction materials comprise bitumen-impregnated soil to which has been added an oily hydrocarbon polymer containing functional groups which enable it to act as a cross-linking agent. The polymer may be " clay-polymer," a steam-cracking by-product, which may contain a major fraction with M.W.~500 and a minor fraction of M.W. up to  ~300. Also present may be a catalyst of the steam-cracking type, e.g. a spent catalyst may be supported, e.g. on kieselguhr or Al 2 O 3 . The soil mixture may contain 1-2 wt. per cent clay polymer and 5 wt. per cent Pen 85 bitumen. It may be compacted at e.g. 2000 p.s.i. and cured at 200‹ C. for 48 hours.
Patent GB-1060536-A (GB)
Title: Improved safety guard for band knife machines
Inventor: BEECROFT MICHAEL ANDREW
IPC: F16P1/02
Filed: 1965-03-08
Abstract: 1,060,536. Machinery guards. THOMAS BEECROFT & CO. Ltd. Jan. 19, 1966 [March 8, 1965], No. 9668/65. Heading F2J. A band knife machine guard comprises a pair of spring steel strip guards 2 coiled within a pair of side-by-side housings 4, the inner ends of the coils being secured to pillars 13 in the housings and the outer ends emerging through an outlet 12 to combine to form a very narrow knife passage. The housings 4 are cup-like in construction and are secured with their open ends bearing against a flat face of their fixing bracket. Knife cleaning pads 22 are incorporated in the housings 4.
Patent GB-526912-A (GB)
Title: Improvements relating to direct current electric motor equipments
IPC: B60L9/06
Filed: 1939-03-28
Abstract: 526,912. Control of D.C. motors. PESTARINI, G. M. March 28, 1939, No. 9721. Drawings. to Specification. [Class 38 (iii)] A motor comprising two separate armature windings wound on a common core, and connected each to its own commutator, is supplied through a metadyne transformer and each armature winding is connected to the transformer to form one of the two loops of a " figureeight " connection. Several dispositions of armature turns in the core slots are described in the Specification.
Patent GB-580454-A (GB)
Title: Oil-base drilling fluids
IPC: C09K8/32
Filed: 1944-05-19
Abstract: A drilling mud for use in sinking oil or gas wells by the rotary boring process comprises a mineral oil, finely divided solid material and tall oil or a soap thereof.  The mineral oil may be diesel, fuel or stove oil, while suitable solid materials are limestone, calcium carbonate, clay, barytes, iron or lead oxide, galena, oyster shells or fuller's earth.  The tall oil may be crude or refined and may be wholly or partially neutralised with a base such as a hydroxide of an alkali or alkaline earth metal, ammonium hydroxide, an organic base, a water-soluble salt of an alkali or alkaline earth metal with a weak acid or any mixture of these.  If desired the base may be added during the preparation of the drilling mud so that the tall oil soap is formed in situ.  The drilling mud may also contain a blown or sulphurised asphalt or other artificial or natural oxidised asphaltic bitumen or material, such for example as gilsonite.  If the solid material is suspended in water as a thin slurry, tall oil is added and water is decanted, the particles of solid material become coated with tall oil, so that on drying a powder is obtained which is very convenient for use in preparing a drilling mud of the present invention.  In examples, drilling muds are prepared from (1) stove oil, crushed oyster shells, tall oil, blown asphalt cut back with petroleum fraction, and aqueous potassium hydroxide; (2) stove oil, calcium carbonate, tall oil and aqueous sodium hydroxide; (3) stove oil, bentonite, barytes, tall oil and aqueous potassium hydroxide. For comparison purposes details are given of the preparation of the compositions (a) of Example (1) without tall oil or with linseed oil instead of tall oil and (b) of Example (2) with soya bean oil instead of tall oil.  A drilling mud comprising diesel or similar oil, crushed limestone or clay, blown asphalt and tall oil, with or without barytes, iron or lead oxide, or galena is also described. Specification 533,933 and U.S.A. Specification 2,223,027 are referred to.
Patent GB-1534355-A (GB)
Title: Brake disc for use in a disc brake assembly
IPC: F16D65/12
Filed: 1976-03-11
Abstract: 1534355 Mounting brake discs; dowels KNORR-BREMSE GmbH 11 March 1976 [15 April 1975] 09860/76 Headings F2U and F2H A brake disc 5 is mounted on a hub 2 of, for example, a rail vehicle axle 1 by radial clamping sleeves 9, each being formed of two slotted sleeve parts mounted coaxially one within the other. The slot in the outer sleeve part may be staggered 180 degrees from that of the inner sleeve part and the two anchored to an arm 3 of the hub by a pin 12. The sleeves 9 may be made of spring steel or the outer sleeve part may be made of a different material to that of the inner sleeve part. The slots may be straight, corrugated or of herringbone shape.
Patent GB-1202505-A (GB)
Title: Fluorescent lamp device
IPC: H05B41/392
Filed: 1969-02-25
Abstract: 1,202,505. Discharge lamps. MATSUSHITA ELECTRONICS CORP. 25 Feb., 1969 [1 March, 1968: 30 May, 1968; 21 June, 1968; 30 Aug., 1968; 13 Sept., 1968], No. 9972/69. Heading H1D. [Also in Division H2] A fluorescent lamp 1 rated at 10 watts comprises an elongated glass envelope having an outer diameter of 25 mm., the envelope being filled with a mixture of mercury and argon and a phosphor coating applied to the inner surface of the envelope. The cathode 2 and anode 3 of the lamp may both be of the wound filamentary type but the anode may alternatively be in the form of two rod-like electrodes 3, 3<SP>1</SP> having a spacing therebetween of 5 mm.