baber/WOPTO huggingface dataset:
Patent GB-487975-A (GB)
Title: Improvements in or relating to conveyors for use in association with mining machines
IPC: E21F13/06
Filed: 1937-03-22
Abstract: 487,975. Conveyers. LOGAN, W. A. March 22, 1937, No. 8306, [Class 78 (i)] A conveyer for use in methods of milling in which the coal is broken down behind the mining machine as the latter cuts along the face comprises a number of units of tray, pan, trough or like form which are adapted to be telescoped one within the other at the rear of the machine and to be extended behind the machine and loaded as the machine advances. Means are provided for traversing the train of extended loaded units to a delivery position, discharging them, and returning the train to the machine. The unit A, Fig. 1, has four wheels and supports the left-hand end of the unit A<1> which has two wheels only. A longitudinal bar 4 on the underside of the bottom of the unit A<1> fits between a pair of similar bars 3 on the unit A, and is connected thereto by the engagement of a pin 6 with slots 5. A belt B which is passed round a drum 17, Fig. 4, at the rear of the mining machine C extends within the units A, A<1> and has a bar 8 at each end to which haulage cables 9, 10 are connected. The cable 9 is led round sheaves 20 carried by a ramp 19 extending from the machine to a winding drum 16, and the cable 10 is led over a drum 21 on the discharge structure E and around sheaves 24 to a similar winch 15. At the commencement of operations, the units are in telescoped condition with their wheels on the ramp 19 and their latches 7 engaged with catches 18 on the machine. As the machine advances, coal is fed by the loader 14 to the belt, and as loading proceeds, the unit A<1> is drawn out of the unit A, and the belt is drawn more and more from below the units round the drum 17 on to the floor of the units. When the left-hand end of the belt reaches the end of the units its left-hand bar 8 engages with the latches 7 of the unit A, and since just prior to this engagement, the righthand bar 8 has become engaged by the latches 7 of the unit A<1> after disengaging them from the catches 18, both ends of the belt are now attached to the fully extended units. Further haulage causes the units to travel to the discharge station where abutments 23 trip the left-hand latches 7 and release the belt. Since the unit A is stopped by the structure E, the units telescope, and the belt is drawn over the roller 21 to discharge its load on to the gate conveyer F. Specification 411,256, [Group XXI], is referred to.
Patent GB-981651-A (GB)
Title: Sealing rings and sealing units containing them
IPC: F16C33/78
Filed: 1963-03-01
Abstract: 981,651. Rubbing-collar type seals. DONLEY PRODUCTS Inc. March 1, 1963 [March 19, 1962], No. 8323/63. Heading F2B. An annular sealing ring 8 of thermoplastic resin material, Fig. 4, is formed with a recess in which a metal stay ring 36 is seated, the inner and outer diameters of the stay ring being fractionally smaller and larger than the corresponding inner and outer diameters of the recess when the stay ring is removed therefrom. The sealing ring has a sealing face 28 and may be provided with a frusto-conical holding surface 26 on its outer periphery or, as shown at 46 in Fig. 7, on its inner periphery. The recess is formed on one side of the sealing ring 8 and the stay ring 36 and its recess may be formed with complementary frusto-conical outer surfaces 37. The cross-sectional area of the stay ring is greater than that of the recess. In Fig. 1, a sealing unit 1, comprising sealing rings 7, 8 carried by a common support 9, is inserted between a rotary collet housing 2 and stationary bushing 3 surrounding a rotating shaft 5. The support 9 consists of primary annular leafsprings 11, 12 having inner peripheral telescoping flanges welded together and outer peripheral flanges welded to annular channels having the frusto-conical inside walls engaging the corresponding holding surfaces 26 on the sealing rings 7, 8. Secondary leaf-springs 17, 18 are clamped between the primary leaf-springs and the channels. The sealing rings may be made of filled or unfilled thermoplastic resin. Examples of a number of resins and of suitable fillers are given. The stay ring may be of stainless steel. Specifications 876,194, 884,073, 913,142 and U.S.A. Specification 2,776,851 are referred to.
Patent GB-622453-A (GB)
Title: Improvements in knapsack metal tube frame
IPC: A45F3/08
Filed: 1947-03-27
Abstract: 622,453. Knapsack frames. BAKKEN, T. March 27, 1947, No. 8327. [Class 133] A tubular metal knapsack frame consists of two individually detachable frame elements in which one frame element is of conventional type having a hip hoop 1 with means for fastening shoulder straps thereto and carries a sack 6; the second frame element 9 is adapted to be fastened to an independent sack 8 and is detachably fastened to and located above the first-mentioned frame. The first frame may carry one or more yokes. In the form shown, frame 9 is fastened to the first frame by a hook 10 which grips the yoke 3. Two individual sacks 6 and 8 are fastened to the first frame and to frame 9 respectively.
Patent GB-144423-A (GB)
Title: Improved depth, draught, and displacement indicator
IPC: B63B39/12
Filed: 1919-04-03
Abstract: 144,423. Alexander, W. April 3, 1919. Displacement and draught, indicating.-Relates. to apparatus, for example that described in Specification 21905/09, for determining the draught or displacement of a body floating in a liquid, or for ascertaining the depth of liquid in vessels or reservoirs, of the type in which the hydrostatic pressure of the head of liquid is balanced by gas pressure, which pressure is communicated to a pressure gauge. With a view to eliminating the error due to the resistance offered to the flow of gas in the main tube, the gauge G is connected through a reservoir R and four-way valve V to the place C, the depth or draught of which is required, by a pipe D, which is entirely separate from the pipe E through which compressed gas is supplied to the same spot by way of the valve V and the pipe F. The provision of a further outlet from the valve casing permits the device to be submitted to atmospheric pressure, and by suitably adjusting the valve, any liquid in the pipe D may be blown out. A device for filling and emptying the instrument comprises a rotatable pipe N communicating with the reservoir R and provided with a cap V. The device described in Specification 128,371 [Class 106 (iii), Fares &c.], may also be used in connexion with the instrument.
Patent GB-572723-A (GB)
Title: Improvements connected with milling cutters, reamers, and like tools
IPC: B23C5/18
Filed: 1944-05-05
Abstract: 572,723. Milling-cutters, reamers, &c. BROOKE TOOL MANUFACTURING CO., Ltd., and SHARP, B. May 5, 1944, No. 8497. [Class 83 (iii)] In an inserted blade milling-cutter, reamer, &c., wherein the blades are secured in slots in the body by brazing, each blade b has grooves in the rear face thereof to facilitate the flow of brazing compound on the adjacent face of the slot. The grooves comprise a main channel b<1> tapering from an entrance duct b<2> to the narrower end which joins a groove b<3>, b<4> passing round the blade and side branches b<5> which may be of arcuate or other curved shape. Blades of larger size may have two or more main grooves b<6>, Fig. 5, leading to the surrounding groove b<3>, b<4> and side branches b<5>.
Patent GB-228036-A (GB)
Title: Improvements in devices for securing hats to the head
IPC: A42B1/22
Filed: 1924-04-04
Abstract: 228,036. Woodfield, A. H. April 4, 1924. Bandeaux; hats, securing to head.-A device for insertion within the crown of a hat at the lower part of the back comprises a strip of fabric provided with a draw-string e at one edge. The opposite edge accommodates a stiffener b of wire or cane, on which may be mounted bifurcated clips with pointed ends adapted to penetrate the hat and be bent over to secure the device in position.
Patent GB-127387-A (GB)
Title: Apparatus for Automatically and Instantaneously Indicating the Flow and Pressure of Gas, or Air.
Inventor: BELL LAURENCE
IPC: G01F1/20
Filed: 1918-05-25
Abstract: 127,387. Bell, L. May 25, 1918. Measuring-apparatus.-In apparatus for continuously indicating the flow and pressure of gas or air, the pressure actuates a balanced or nearly balanced valve consisting of an open tube having liquid.sealed slits at its lower end and connected to a flexible diaphragm at its upper end. As shown, the gas enters through a pipe 21 into the lower compartment of a chamber divided by a flexible diaphragm 3. The diaphragm is thereupon lifted and raises a tube 4 connected with it, and the gas, passing down an annular passage 22, enters the tube by slits 5 at its lower end, which have been lifted out of mercury or other liquid 6 that normally covers them, and passing through the open top of the tube comes into contact with the upper side of the diaphragm and passes out by a pipe 23. The net amount by which the slits 5 are uncovered and the tube raised increases with the rate of flow. The tube 4 carries a nod 9 passing through a stuffing-box or liquid seal in the top of the chamber and carrying a hinged frame 11 depending from it, the lower end of which rests and slides on a lever 12 operating a needle, which travels over a graduated dial. The lower compartment 2 of the chamber communicates with a chamber 15 closed by a flexible diaphragm 16 open on its upper side to the atmosphere. To the diaphragm 16 is attached a rod 16a, which in turn is connected to the levers 17, 18 actuating a needle which indicates the pressure. The frame 11 is also connected with and actuated by a. lever 17, 18 through a rod 20. A pendulum 25 fixed rigidly to the lever 18 and carrying a weight adjustable in position ensures the return of the pressure-indicating needle to zero; the height of the weight may be adjusted according to the density of the gas.
Patent GB-983953-A (GB)
Title: Continuous process for the manufacture of silicon tetrachloride and/or trichlorosilane
IPC: C01B33/08
Filed: 1961-03-09
Abstract: <PICT:0983953/C1/1> Silicon tetrachloride and/or trichlorosilane are prepared by the action of gaseous hydrogen chloride at a temperature in the range 260 DEG  to 1200 DEG  C. on elementary silicon and/or a substance containing elementary silicon, e.g. an alloy or residues from silicon carbide manufacture, which is maintained as a fluidized bed by passing the hydrogen chloride gas up through it.  In the Figure, HCl gas is introduced via pipe 3 into a chamber 4 underneath a perforated plate 7 and then into the bed.  Plate 7 slopes from its periphery to the centre in order to assist the continuous removal of unreacted material and solid reaction products via the screw conveyer 11.  The process is made continuous by the addition of fresh silicon via pipe 8.  Above the outlet in the centre of plate 7 there is a cone 20 which serves to guide the flow of the fluidized bed so that no encrustations or hot patches form and also helps to ensure that any solid residues which collect do not seriously interfere with the flow of the bed. It can also be used along with jacket 19 as a means of cooling to control the reaction temperature on which to some extent the proportions of SiCl4 and SiHCl3 obtained in the reaction depend.  For example, using commercial grade silicon at a temperature of 300 DEG  C. approximately 83% SiHCl3 is obtained whilst above 700 DEG  C. the product is almost all SiCl4.  Increasing the purity of the silicon starting material raises the temperature at which SiCl4 is formed, thus for "semiconductor silicon" at 700 DEG  C. the product contains only 5% SiCl4 and temperatures up to 1200 DEG  C. are necessary if almost pure SiCl4 is to be produced. Specification 815,276 and German Specification 1,036,234 are referred to.
Patent GB-957262-A (GB)
Title: Siphonic flushing cisterns
IPC: E03D1/08
Filed: 1962-03-07
Abstract: 957,262. Siphon-discharged flushing cisterns. FORDHAM PRESSINGS Ltd., and J. F. PARKER. Feb. 28, 1963 [March 7, 1962], No. 8707/62. Heading E1C. In a siphonic flushing cistern with a U-shaped unit mounted therein by its longer leg 16, and with a shorter leg 14 terminating as shown in an enlarged portion 12, fitted with a valved piston element or disc which is raised to start the siphonic action prior to discharge through an outlet 18, the hand-operable mechanism to lift the piston element comprises an actuating rod 19, guided for vertical, or near vertical, movement on the leg 16 and projecting upward through and beyond an opening at 21 in the removable lid 11, a lever 22 pivotally mounted on the siphon unit and flanking the legs 14, 16, a pivotal link 23 connecting the stem 13 of the piston element to one end of the lever 22, and a second, and preferably considerably longer pivotal link 24 connecting a point 25 toward the lower end of the rod 19 with the other end of the lever 22. The lever 22 is preferably of duplex form and embraces the siphon unit, the limbs thereof being integrally formed or rigidly connected, at one end at least, and having pivots 26 taking into bearings 27 positioned as shown. The bearings 27 are moulded integrally with a centre web portion 28. The upper end of the rod 19 projects into the stem of a press knob 30, freely slidable thereon and in a hole in the lid 11, which has a stop at its lower end to prevent direct withdrawal but ensure its removal with the lid 11. Two forms of mounting for the knob 30 are described.
Patent GB-307225-A (GB)
Title: Improvements in or relating to pumps for viscose or other liquids
IPC: F04B7/06
Filed: 1928-03-22
Abstract: 307,225. Friedmann, L., Friedmann, M., and Schopp, N., (trading as Friedmann, A., [Firm of]), and Nemetz, G. March 22, 1928. Pumps with reciprocating and rotating pistons; cam-actuated pumps.-A pump for viscose &c. comprises a number of pump barrels 4 each provided with inlet and delivery ports 6, 5 controlled by the pistons, which are reciprocated and rotated by a driving shaft 17 parallel of the axis of the piston. The shaft has an inclined portion 3 on which is loosely mounted a sleeve 19 carrying arms 20 engaging cranks 18 on the pistons.
Patent GB-512853-A (GB)
Title: A combined kitchen or dining table and ironing board
IPC: A47B35/00
Filed: 1938-03-22
Abstract: 512,853. Tables combined with ironing boards. MARSHALL, W. H. W. March 22, 1938, No. 8752. [Class 52 (iii)] In a combined table and ironing board, the board is carried by the front legs and the table top is mounted upon the rear legs, so that it can be swung into a vertical position to uncover the board. In the construction shown the board 1 is fixed at one end to the front leg 3, the other end resting upon the front leg 12 which is pivoted at its lower end 13 so that it can be swung into the inclined position, as shown in Fig. 3, to support the board at a distance from its front end. The leg 12 is held in its vertical position by the pivoted brace members 15, 16. The table top 5 is pivotally and slidably attached to the rear legs 6 so that it can be swung into the vertical position as shown in Fig. 3, to uncover the ironing-board.
Patent GB-715226-A (GB)
Title: Improvements relating to electro-magnetic coils
Inventor: SNELL MAURICE SAXON
IPC: H01F5/00
Filed: 1952-04-07
Abstract: 715,226. Electric coils. DOWTY EQUIPMENT, Ltd. April 7, 1953 [April 7, 1952], No. 8857/52. Class 35 A coil comprises a number of flat spiral series windings of aluminium strip mounted side by side on a former with layers of insulating material between them, the turns of each winding lying directly one upon the other and being insulated from each other by an oxidized surface layer formed on one or both sides of the strip. While Fig. 1 shows a perspective view of one such winding 6, Fig. 2 shows a complete coil comprising windings 6a-e mounted on a former 10 of insulating material on a core 11 and yoke 12 both of which are made of magnetic material. The windings are separated by insulating discs 13 and the complete coil is held between facings 14, 15, preferably, the discs 13 and the facings 14, 15 are made of fibre-glass. The joints between adjacent windings is done by first removing the oxidized layer on the respective terminations 7, 9 and then hold ing the latter in the cleft of a fork 16 which is turned to make a tight roll 17, Fig. 4 (not shown).
Patent GB-1377309-A (GB)
Title: Lamp and reflector assembly
IPC: H01J61/98
Filed: 1972-02-25
Abstract: 1377309 Lamps GENERAL ELECTRIC CO 25 Feb 1972 [29 April 1971] 8890/72 'Heading F4R A direct current arc lamp 11 includes an elongated lead-in stem 13 housing the anode lead, the stem being arranged within a hollow collar 28 extending to the rear of a concave reflector 26, the stem being cemented to the rear of the collar. The reflector may be elliptical with rear focus f 1  at the arc. The anode and cathode electrodes 16, 17 may be welded to molybdenum foils 18, 19 within their respective stems 13, 14. A protective ceramic cap 43 may be cemented to the end of the device. The collar arrangement allows a longer anode lead-in stem reducing thermally induced fractures at the stem support.
Patent GB-550258-A (GB)
Title: Improvements in electrolytic cells suitable for the electrolysis of brine
IPC: C25B9/17
Filed: 1941-07-14
Abstract: 550,258. Electrolytic cells. STRATFORD ENGINEERING, Ltd. July 14, 1941, No. 8906. Convention date, Aug. 28, 1940. [Class 41] A cell for use for instance in the electrolysis of brine to produce a chlorinating liquid comprises a central electrode 2 surrounded by a tubular electrode 3, both of carbon for example, the liquid to be treated entering the annular space 4 through holes 15 in the insulating base 5 and emerging after treatment through holes 16. An insulating cap 9 formed with an aperture 10 assists the base piece in maintaining the electrodes assembled and centred. Current connection with the electrodes is made by means of clips 11, 12. The cell is used disposed within a batch tank, as shown in Fig. 2.
Patent GB-1492911-A (GB)
Title: Method of producing a relief pattern surface on pressed chip board
IPC: B44C1/22
Filed: 1976-03-05
Abstract: 1492911 Chipboard RY AB 5 March 1976 [7 March 1975] 08915/76 Heading C3N [Also in Division B3] A method of producing a flat pressed chip board with a relief pattern surface comprises subjecting the surface to abrasion by means of rotary steel brushes as the chip board emerges from a press. The chip board may have 10% to 50% of the chips having a length of 10 to 25 mm., and the chips, at least at the surface, may consist of different kinds of wood, for example, oak or beech chips together with chips of pinewood. Chips of different glue content for example, chips having a glue proportion of 0-8% by weight calculated as dry glue in dry chips may be mixed with chips normally glued, i.e. 8-16% by weight, in the surface. The steel brushes tear away the less glued chips to provide the relief pattern.
Patent GB-579518-A (GB)
Title: Improved process for producing insoluble sodium metaphosphate
IPC: C01B25/445
Filed: 1944-05-10
Abstract: 579,518. Sodium metaphosphate. MONSANTO CHEMICAL CO. May 10, 1944, No. 8947. Convention date, May 27, 1943. [Class 1 (iii)] Substantially insoluble sodium metaphosphate, e.g., for dentifrices is produced by pelleting finely ground, anhydrous, crystalline, monosodium orthophosphate, heating above 300‹C. but not over 460‹C. for not more than 4 hours, and powdering to 350 mesh size. A rotary or vertical shaft furnace may be used with 500 ‹C. hot gas inlet. The orthophosphate may be moistened prior to pelletting with up to 5 per cent (preferably 1 to 2 per cent) water either as such or as added mono-orthophosphate mono or dihydrate. The gas and pellet streams are preferably countercurrent. The pellets may be cooled before powdering. Specification 472,812 is referred to.
Patent GB-130934-A (GB)
Title: Improvements in Mechanically Operated Diaphragm Horns.
Inventor: BRADBURY HERBERT WILLIAM
IPC: G10K9/10
Filed: 1919-04-09
Abstract: 130,934. Bradbury, H. W., and Jarvis, E. H. April 9, 1919. Diaphragm horns.-In a diaphragm horn of the kind operated through a rack-and-pinion gear, the diaphragm-clamping ring A, a pair of standards B for carrying the striker wheel spindle, and the tube C in which the rack D works are all cast in one piece, preferably of antifriction metal. As shown, the tube C is located between the standards B, being cut away at C<1> so that the rack teeth can engage the pinion E<1> attached to the striker-wheel F. A pin D<2> on the rack rides in a slot in the tube and is connected to a spring G whereby the rack is restored after depression through pressure on the head D'.
Patent GB-1525062-A (GB)
Title: Colour imaging device
IPC: H04N9/04
Filed: 1976-03-05
Abstract: 1525062 Television systems EASTMAN KODAK CO 5 March 1976 [5 March 1975] 8998/76 Heading H4F A colour imaging device includes two arrays of light-sensitive members, one array consisting of two types of members respectively sensitive to two colours, of a set of three colours, for which the human eye has greatest resolving power, and the other array consisting of light-sensitive members sensitive to the third of the colours. In the embodiment described, Fig. 1, the colours are red, green and blue. One array consists of a rectangular matrix 28 of green-sensitive and redsensitive members, the red and green members alternating in the x and y directions. The second array 30 is a rectangular matrix of blue-sensitive members, and the number of members in this array is much less, e.g. 1/64, than the number in the first array. As applied to a video camera, light from a viewed object is directed on to a beam-splitting mirror 24 which passes the red and green components to array 28 and the blue component to array 30. The arrays are read out by scan control 36, the signals passing via registers 32, 34 to processors 37, 38 which provide analog signals. The signal from processor 37 is separated into red and green components by sampling circuits 40, 42 which feed filters 49b, 49c. The signal from processor 38 passes to register 44 from which it is repeatedly read out to sampling circuit 48, repetitive read out being necessary because there is a smaller number of light-sensitive members in array 30 than in array 28. Since the array 30 provides a low-definition signal filter 49a may have a smaller bandwidth than filters 49b, 49c. The resulting red, green and blue signals may be converted (50) to a broadcast format and recorded.
Patent GB-387862-A (GB)
Title: Improved method and means for delivering cigarettes from cigarette-making machines
IPC: A24C5/32
Filed: 1932-03-29
Abstract: 387,862. Cigarette-making machines. RÍSSLER, K. F. W. and PONNDORF, K. F. A., (trading as PROGRESS MASCHINEN FABRIK RÍSSLER & PONNDORF), 64, Lobtauer Strasse, Dresden, Germany. March 29, 1932, No. 9007. Convention date, March 28, 1931. [Class 130.] Cigarettes are delivered from a continuous-rod machine in two rows with their tips in the same direction, by a conveyer moving obliquely to the direction of the cigarette rod with the component parallel to the cigarette rod greater than the speed of the rod, and by a second conveyer moving transversely to the rod with a speed equal to that of the transverse component of the first conveyer, the cigarettes being always parallel to the cigarette rod. Fig. 2 shows cigarettes issuing from the machine at a and received by an oblique conveyer bl comprising two superposed belts and delivering the cigarettes to chambers c in a transversely moving conveyer h. Stops f provided midway in alternate chambers c are lifted by a bridge piece l so that the cigarettes pass to the further end of the chambers. They are then moved back again by another oblique conveyer e so as to become arranged in two rows by the action of the stops f. In Fig. 5, the oblique conveyer b<1> delivers to a second and more oblique conveyer b<3>, which delivers to the chambers c, alternate cigarettes being held half-way by stops n. Additional oblique conveyers may be arranged between the machine and the chambers c.