baber/WOPTO huggingface dataset:
Patent GB-772989-A (GB)
Title: Improvements relating to brake shoes for railway vehicles
IPC: F16D69/02
Filed: 1955-09-05
Abstract: 772,989. Grinding. WESTINGHOUSE AIR BRAKE CO.- Sept. 5, 1955 [Sept. 15,  1954], No, 25436/55. Class 60 [Also in Group XXXIV] In a composition brake shoe for use with wheels of railway vehicles and the like, a layer of abrasive material is provided on its wheel engaging surface for burnishing the wheel by frictional contact therewith, said layer being so thin as to be expended during an initial limited period of use so that only non-abrasive brake material will remain. In the embodiment illustrated, the brake shoe comprises the body 2 of composite brake material comprising four integral segments moulded to a backing plate 1. These segments have presenting braking surfaces 3, 4, 5 and 6 which engage the tread of the wheel to be braked the outer segments 3 and 6 being provided with an integral thin layer 8, 9 of abrasive material such as silicon carbide particles for conditioning and burnishing the wheel as it is expended by frictional contact with the rotating wheel during an application of the brakes. During successive applications of the brake the wheel will gradually become conditioned and the portions 8, 9 will be completely expended and only non-abrasive composition brake material will engage the wheel for preventing undesirable wear thereof during the remaining life of the brake shoe. An alternative construction of shoe is described and illustrated in the Specification for use with new wheels where it is desired to condition the wheel in a relatively short time.
Patent GB-1466715-A (GB)
Title: Multi-colour display arrangement
IPC: H04N5/74
Filed: 1974-06-07
Abstract: 1466715 Controlling light T J SCHEFFER 7 June 1974 [9 June 1973] 25485/74 Heading G2F [Also in Division G5] A multi-colour display system has a light source 1, a linear-polarization filter 3 and a nematic liquid crystal twist element 11 followed by either a passive bi-refringent plate 12 producing a optical phase difference and a further neutral linear polarization filter 13, or a selective polarizer which may be a pleochroically selective absorption element. This provides a selective two-colour system in which each element may be rotated through 90 degrees individually or in any combination. More than two colours are produced by placing two or more systems in series. A dispersion filter 14 allows offaxis viewing. The system may provide large displays and is unaffected by temperature variations as the liquid crystal element is operated at saturation voltages.
Patent GB-502495-A (GB)
Title: Process for the thermal production of metallic barium
IPC: C22B26/20
Filed: 1937-09-20
Abstract: 502,495. Barium. I. G. FARBENINDUSTRIE AKT.-GES. Sept. 20, 1937, No. 25486. Convention date, Jan. 9. [Class 82 (i)] In the production of barium by the reduction of materials containing barium oxide by means of silicon or aluminium, the proportions of the ingredients of the mixture are so adjusted that the molecular ratio of barium oxide to reducing agent lies between 3À5 : 1 and 4À5 : 1 in the case of silicon, and between 3À5 : 2 and 4À5 : 2 in the case of aluminium. Alkali or alkaline earth fluorides, particularly barium fluoride, may be added to the reaction mixture.
Patent GB-1534447-A (GB)
Title: Light guns
IPC: F41G3/26
Filed: 1977-06-17
Abstract: 1534447 Amusement apparatus WALT DISNEY PRODUCTIONS 17 June 1977 [18 June 1976] 25531/77 Heading A6M [Also in Division F4] A light gun for use in an amusement park ride, where it is mounted on a vehicle and directed at a target sensitive to IR radiation of a certain modulation, comprises a source 24 of continuous visible and IR radiation, means 38 to periodically interrupt the IR component to modulate it and means 40 selectively blocking the IR component but passing the visible light. The modulation means 38 comprises a pair of IR filter pads mounted on a tuning fork to pass before an aperture in a diaphragm 32. The blocking means 40 is an IR filter pivotally moved out of the light beam when a solenoid 42 is energised by closure of a switch 50 when a trigger is pulled.
Patent GB-508097-A (GB)
Title: Spring type motor consisting of helical springs subjected to tensile or compression stress
IPC: F03G1/00
Filed: 1937-09-21
Abstract: 508,097. Spring motors. LANCOS, A. Sept. 21, 1937, No. 25551. Void. Convention date, Sept. 21, 1936. [Class 10] In a spring motor for gramophones. &c. in which the energy stored in stretched or compressed helical springs is transformed by gearing into rotary motion, the energy is transmitted through a rollor p to a rotatable member g, the guide surface f of this member with which the roller contacts being of substantially spiral form, as shown in Fig. 2. Two springs h, i are anchored at one end to bolts c, d and are connected at the other end to bars k which are coupled by a pin l to arms m carrying the roller p. The arms m are slotted at n to accommodate the bolt e carrying the member g, the latter being formed on its periphery as a gear-wheel rotatable through gearing r, s, t, u, v by a handle y to stretch the springs.
Patent GB-1398766-A (GB)
Title: Casings
IPC: B23P11/00
Filed: 1972-05-31
Abstract: 1398766 Jointing AUTOMOTIVE PRODUCTS Ltd 18 May 1973 [31 May 1972] 25563/72 Heading B3J Two parts 3, 13 of a servo-motor casing 1 are joined by tongues 11 on part 13 projecting through slots in part 3 and bent over to engage the part 3 adjacent the slots. The casing may be for a brake or clutch servo in which the periphery 21 of the diaphragm 19 is also clamped by the joint.
Patent GB-255646-A (GB)
Abstract: 255,646. Johnson, C. G. Aug. 1, 1925. Surface and outline gauges. - A gauge for screw-threads comprises pairs of rollers 2 provided with rings or discs 4 which are ground to fit a standard thread. The rollers are mounted in a U-shaped frame on eccentric sleeves 6 which are locked in adjusted position by nuts 8. To facilitate grinding, the rings 4 are spaced apart a distance equal to two or more times the pitch of the thread. Two or more pairs of rollers may be mounted in one frame to form a " go " and " not go " gauge.
Patent GB-350331-A (GB)
Title: Improvements in or relating to air-traffic beacon-lights
IPC: B64F1/20
Filed: 1930-08-27
Abstract: 350,331. Beacon lights for aerial navigation. PINTSCH AKT.-GES., J., 71, Andreasstrasse, Berlin. Aug. 27, 1930, No. 25611. Convention date, Aug. 27, 1929. [Classes 75 (ii) and 75 (iv).] Lenses.-In a beacon light for aerial navigation in which two projecting lenses 1 revolve round a common source of light 2 and transmit the greater part of the light a, oppositely directed horizontal beams 4, the light emerging through the narrow gaps between the lenses is intercepted by laterally disposed reflectors 3 and directed with vertical dispersion in the directions of the beams 4.
Patent GB-645784-A (GB)
Title: Improvements relating to holders for sanitary rolls
IPC: A47K10/40
Filed: 1948-10-01
Abstract: 645,784. Roll holders. FLESSELLES, W. F. Oct. 1, 1948, No. 25670. [Class 18] A holder for a roll of paper or the like comprises a wire frame pivotally attached by its base 3 to a supporting bracket 4. Arms 7 extend from the ends of the base 3, the wire between the arms and base being formed into coils 8 to permit the arms to be swung outwardly to facilitate mounting of the roll upon short rollers 12 attached to the inturned ends of the arms. Alternatively the ends of the arms may be formed into a series of convolutions upon which the roll can be m ounted
Patent GB-257099-A (GB)
Abstract: 257,099. Low Engineering Co., Ltd., O'Brien, H. S., and Low, A. M. Aug. 26, 1925. Crank chambers. - In two-stroke-cycle engines using crank case compression filling pieces are provided in the crank case to reduce the compression space, stationary pieces being mounted on the case and blocks being attached to the crank webs. The stationary pieces consist of two corresponding semi-circular blocks f, Figs. 1 and 2, carried by rectangular bases e for attachment to the case. The blocks fare recessed on their upper and lower surfaces, as at fl and f<2>, to clear the small and big ends of the connecting rod; they are also recessed and grooved on their outer surfaces as at f<3>, f<4> to allow movement of the lower end of the piston. Each of the blocks g for attachment to the crank webs is in the form of a crescent made up of two pieces connected together by through bolts g<3>. Pegs g<2> on the parts position the blocks on the crank webs, the block parts being recessed to receive the webs and to provide clearance for the big end.
Patent GB-679796-A (GB)
Title: Process for the production of submerged concrete
IPC: E02D15/06
Filed: 1950-10-23
Abstract: 679,796. Subaqueous foundations. DEGEN. W. Oct. 23, 1950. [Oct. 31, 1949] No. 25755/50. Class 68 (ii). In a process for making subaqueous foundations from concrete that is mixed above ground and deposited in a freshly mixed state within a casing 1 under water, the fresh concrete is subjected to shaking within the casing by a vibrator 5 to which is secured a hollow chamber 6 to which the delivery tube 7 is attached, the assembly being capable of being moved laterally below the border line of the concrete and water so that the entire cross-section of the concrete can be acted on. The size of the coarsest aggregate, the water-cement ratio and the diameter.of the delivery tube are so regulated that on the stopping of the shaking a waterimpervious plug is formed in the delivery tube.
Patent GB-1323223-A (GB)
Title: Apparatus for blood tests
IPC: G01N15/05
Filed: 1971-04-19
Abstract: 1323223 Blood testing MARK WEBER ENTERPRISES (PTY) Ltd 19 April 1971 [7 April 1970] 25975]71 Heading A5R [Also in Division B1] Apparatus used for measuring erythrocyte sedimentation rates comprises a cylinder 1 which is graduated and dimensioned to conform to the specification of Wintrobe sedimentation rate tube, the cylinder at one end 2 having a base 3 with a bore (4), Fig. 2 (not shown), therethrough, the base having means thereon to support an hypodermic needle 10. The other end 5 of the cylinder is open to receive a plunger 6 and a plunger shaft 7, with finger grips 8, 9 provided on the plunger and cylinder. The inner side of the shaped base 3 is countersunk 12 to provide a valve seat for an agitator-ball 13 and the plunger is arranged to hold the ball in a seated station when in its innermost position. A suitable anti-coagulant (14) is enclosed in the space between the ball 13 and the inner end of the plunger 6, which prevents clotting of the blood when the apparatus is in use. Should air bubbles be present in the blood withdrawn from a patient, elimination can occur when using a plunger and a plunger shaft provided with a bore (17), Figs. 3, 4 (not shown), a rod (18) being located therein. The shaft (19) and rod (18) are provided with a screw-threaded spigot (21) at their outer ends and a cap (22) such that upon rotation of the cap relative to the shaft (19), the rod may be partly withdrawn with the result that any bubbles adhering to the plunger are withdrawn into the bore through the shaft. In use, blood is withdrawn from a patient by using the syringe as a conventional sampling syringe and when the needle is removed from the patient the blood is mixed, aided by the movement of the ball 13 in the cylinder bore. After expelling any excessive blood and air bubbles by moving the plunger until it coincides with the zero mark 15 on the graduated scale, the syringe is inverted and allowed to rest on a rack and the sedimentation rate estimated by recording the time taken for the erythrocyte to deposit to a certain level in the cylinder. The apparatus is provided with a needle cover 23, to keep the needle sterile, in the form of a cylindrical container with a cap 25 which may be used as a sample bottle.
Patent GB-297034-A (GB)
Title: Improvements in or relating to the manufacture of oil lacquers and varnishes
IPC: C09D191/00
Filed: 1928-09-10
Abstract: 297,034. I. G. Farbenindustrie Akt.- Ges. Sept. 12, 1927, [Convention date]. Coating-compositions.-Oil paints and varnishes contain an aromatic hydroxy carboxylic acid or derivatives such as homologues, halogen compounds, or etherified compounds or mixture of acids and derivatives. Polymerized linseed oil is heated to 110-130‹ C. and a small proportion of #-hydroxy naphthoic acid is stirred in until dissolved. Drier and thinner are added and the lacquer is ground with zinc white.
Patent GB-139737-A (GB)
Title: An improved needle for use in the construction of rag mats and the like
IPC: D05C15/06
Filed: 1919-10-23
Abstract: 139,737. Brown, J. Oct. 23, 1919. Hand sewing-tools.-A tufting-tool for making rag mats is provided with a spring-pressed plunger 7 which is used to grip material placed in the throat 6. The plunger is provided with a fingertrigger or its equivalent.
Patent GB-1138500-A (GB)
Title: Method and apparatus for machining grooves in a tubular member
IPC: B23D5/02
Filed: 1966-06-10
Abstract: 1,138,500. Planing. COMMISSARIAT A L'ENERGIE ATOMIQUE. 10 June, 1966 [30 June, 1965], No. 26065/66. Heading B3L. Helical internal grooves 58, Fig. 4, are machined in the bore of a tube, to thus provide helical fins 59, by clamping the tube 9 in two chucks 5, 6, Fig. 1, inserting a tool spindle 16 having cutting tools 39 mounted therein, into the tube, adjusting the tools radially to provide the depth of cut, moving the spindle axially in the opposite direction to arrow C, and simultaneously moving the tube angularly about its axis. The apparatus for carrying out the machining comprises the chucks 5, 6, connected by a tube 11, a cam path 30, Fig. 2, on the tube 11, a follower 29 mounted on a block 28 secured to a rod 21, and the tool spindle 16. Spindle 16 and rod 21 are connected to a thrust-plate 20, and spindle 16 has a slot 34, Fig. 4, in which a tool carrier 35 can be adjusted radially, and in which a blade 36 can slide axially, the blade having projections 49 which co-operate with two sloping grooves 48, 48a, in carrier 35, Fig. 1. A rod 44 abuts blade 36 at one end, and a cam 50 at the other end, the cam being keyed to a shaft 51, Fig. 2, on which is also keyed a ratchet wheel 52, which can be actuated by a pawl 53. In operation, force is applied to thrust-plate 20, and spindle 16 and rod 21 move in the direction of arrow C, with no cutting taking place. A ramp 56 engages a roller 55 so as to lift pawl 53 into engagement with ratchet wheel 52. Cam 50 is rotated and pushes rod 44 so that blade 36 is moved axially, and due to the grooves 48, 48a, the tool carrier 35 is moved radially, to thus set the depth of cut. The direction of movement of plate 20 is reversed, the pawl and ratchet 53, 52 is released, and the tool spindle moves through the tube to thus cut grooves in the latter, which grooves are helical in form due to the movement of tube 11 in the direction of arrow (B), Fig. 3 (not shown), provided by the engagement of projection 29 in cam path 30, Fig. 2. Tube 11 may have left and right hand cam paths which engage with left and right hand projections so as to, produce grooves of opposite hands.
Patent GB-836870-A (GB)
Title: Fluid pressure control device
IPC: F16K31/12
Filed: 1958-08-14
Abstract: 836,870. Valves. BENDIX-WESTING- HOUSE AUTOMOTIVE AIR BRAKE CO. Aug. 14, 1958 [Oct. 17, 1957], No. 26201/58. Class 135. A fluid pressure control device comprises a body 10 with inlet, outlet and vent ports 12, 14, 44, and a movable member 20 formed with first and second motive surfaces, and operable in conjunction with a valve 46 to open or close a port 38 in the movable member and an exhaust port 40 at the lower end of a fixed axial member 39, to control the connection of outlet port 14 with either inlet port 12 or vent port 44. The device may be applied to a tractor braking system such as described in Specification 683,350, port 12 being in communication with a pressure fluid reservoir and port 14 with the tractor protection valve. As shown the movable member consists of a stepped piston 20, 22 of which the lower end surface forms the first motive surface and the annular surface 30 the second motive surface. In the first position shown a loading spring 35 holds valve 46 and piston 20 in contact to maintain poit 38 closed, whereby outlet 14 communicates via a control chamber 18 containing the enlarged piston portion 22, a passage 41 and orifice 40, with vent port 44. Upon admitting pressure fluid from inlet 12, valve 46 and piston 20 rise together until valve 46 engages the lower end of member 39 and closes exhaust orifice 40, whereupon continued movement of the piston opens port 38 enabling the piessure fluid to act upon the annular surface 30, resulting in a snap action upward movement of the piston into its second position in contact with a cap member 32, and also placing ports 12, 14 in communication. Upon reduction of the supply pressure the operation is reversed, closure of port 38 being followed by opening of orifice 40, so placing the fluid acting on surface 30 into communication with vent port 44 and enabling spring 35 to snap piston 20 downwards, thereby cutting off inlet port 12 and restoring communication between ports 12, 44. In an alternative arrangement, Fig. 2 (not shown), the motive surfaces are provided by diaphragms connected to the movable member.
Patent GB-712677-A (GB)
Title: Improvements relating to means for varying spring tension in vehicle suspensions
IPC: B60G11/18
Filed: 1952-10-20
Abstract: 712,677. Spring-suspensions; adjusting body height. DAIMLER-BENZ AKT.-GES.. Oct. 20, 1952 [Oct. 18, 1951J, No. 26312/52.. Class 108(2) In means for varying spring tension on. vehicle suspensions, the means being; adapted for the simultaneous variation of the tension of the spring suspensions of two corresponding road wheels on respective sides of the vehicle, a casing enclosing the means is mounted on the chassis frame or vehicle body with the interposition of elastic members such as rubber cushions. In the arrangement shown, in which torsion bars 23 and 24 mounted on bearings 25 are connected at one end to halfaxles 20 and at the other end are mounted on bearings 26 on a frame cross-member 12 and are provided with arms 29 and 30' carrying rollers 31 and 32 which engage axially displaceable plungers 33 and 34 respectively in a casing 35, the latter which is substantially tubular, is formed with a. fork-like end providing mounting eyes 36, 37 which engage pins secured to a longitudinal frame member 11, with the interposition of conical rubber rings. An extended housing part 40 is provided with a pin or eye having a transversely extending bore which is engaged by a cranked pin on the cross-member 12 with the interposition of a rubber bush. Movement of the plungers 33, 34 is produced by a manually or automatically controlled electric motor, through gearing. Specifications. 686,219 and 712,661 are referred to.
Patent GB-1241120-A (GB)
Title: A paper manufacturing system and a method of controlling the same
IPC: G05D23/00
Filed: 1969-05-23
Abstract: 1,241,120. Control of pulp refiners. BUNKER-RAMO CORP. 23 May, 1969 [27 June, 1968], No. 26343/69. Heading D2A. Freeness of stock supplied to a paper machine from a refiner is controlled by maintaining the temperature rise through the refiner at a particular value, and adjusting this value to maintain constant the ratio of the temperature rise to the consistency of stock. There may be more than one refiner, and this control may be effected by a computer. A suitable programme is given, in four parts, DC-1, DC-2, DC-3 and DC-4. The computed control signal affects adjustment by means of movement of the cone or disc of a Jordan or disc refiner. The programme has facilities to avoid operating the individual refiners at above their maximum power output value, and to signal the removal or addition of refiners corresponding to the work load. The programme uses inputs of consistency, temperature rise and power usage of individual refiners, basis weight, moisture content and bursting strength test data of the paper given, and either the freeness or the couch vacuum on the paper machine. The freeness may or may not be under computer control. The system is described as feeding stock to the headbox of a Fourdrinier machine, but a cylinder machine may also be used. The white water from vacuum boxes is collected in a silo, and re-used for diluting the stock flow. The moisture content of the paper may be determined by making it one branch of a resistance or capacitance bridge, and the basis weight may be measured by #-ray absorption. A consistency measuring device is described which consists of paddles mounted on a shaft for rotation within an enclosed chamber. A pneumatic force-balance transducer develops a signal proportional to the torque on the shaft, which depends on the consistency of the pulp.
Patent GB-686718-A (GB)
Title: Improvements in and relating to air flow conveyors
IPC: B65G53/08
Filed: 1950-10-30
Abstract: 686,718. Pneumatic conveyers; screw conveyers. CHEREWICK, F. J. Oct. 30, 1950. No. 26366/50. Class 78 (i). Sawdust from a hopper 5 is fed by a screw 18 along a pipe 2 so that the material forms a plug 35, the plug being disintegrated by air from a blower 11 fed through a cone 9 and discharged by the air stream through a pipe 12 and a flexible pipe 16. The screw 18 is fixed on a shaft 19 slidable in the pipe 2, the shaft having splined connection with a driving pulley 21 and carrying a block 24 which may be metred by hand along the said pipe by a screw 29, the screw passing through a lug 26 carried by the block 24 and through a lug 30 carried by the pipe 2. In this way the length of the plug may be varied.
Patent GB-254162-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M7/11
Filed: 1925-10-21
Abstract: 254,162. Sturm, W. Oct. 21, 1925. Spray carburettors. - In carburettors provided with an air throttle and with a connection between the induction passage and the float chamber, the float chamber is air-tight and is connected by an air-tight passage with the throat of a main choke tube, whilst the fuel nozzle is located in an auxiliary choke tube the section in which is greater than that in the main choke tube. The suction in the float chamber raises fuel thereto from the main tank. The casing is in the form of a bent pipe a the lower end containing the air valve b, the upper end being formed as a main choke tube c the throat of which is connected by a passage h with the space g above the fuel in the float chamber e. One or more auxiliary choke tubes d are provided into one of which discharges the nozzle l connected to the float chamber by a pipe k containing a construction i. Air is admitted to the pipe k through a tube m provided with a constriction t and opening at n in front of the choke tube d. The passage h may communicate with one of the auxiliary choke tubes providing the suction therein is less than in that containing the nozzle l. A slow-running nozzle r with air inlet s is mounted in the casing and is connected to the float chamber by a pipe q having a constriction o and also a connection through a pipe x with constriction p with the induction passage. In a modification, the pipe x is replaced by a pipe entering the induction passage in the neighbourhood of the air valve b, the air flow past the valve in its various stages of opening exerting varying influences on the flow of air through the pipe.