baber/WOPTO huggingface dataset:
Patent GB-846615-A (GB)
Title: Picks for coal cutting machines
IPC: E21C35/18
Filed: 1958-02-27
Abstract: 846,615. Mineral-mining equipment. WICKMAN Ltd., and SMITH, W. G. Jan. 19, 1959 (Feb. 27, 1958], No. 6348/58. Class 68(1). A coal pick has at one end of shank portion a tapering, curved beak that has a concave leading face and a convex trailing face. The beak is provided with a hard metal insert, and the rake angle at the operative end of the beak is between 40 - 60 degrees, and the clearance angle between 2 - 6 degrees.
Patent GB-1370238-A (GB)
Title: Method of and hydrostatic extrusion press for manufacturing rod or wire of compound material
IPC: B21C23/22
Filed: 1972-02-11
Abstract: 1370238 Extruding ALLMANNA SVENSKA ELEKTRISKA AB 11 Feb 1972 [12 Feb 1971] 6420/72 Heading B3P A hydrostatic extrusion process for a compound billet with an aluminium or aluminium alloy core and a copper or copper alloy sheath sealed at the rear of the billet to the core is effected using a die which has a conical inlet whose cone angle is between 93 and 115 degrees. A preferred range of cone angle is 95 to 110 degrees with an extrusion ratio of between 100- 1000. The rear end sealing of the billet is effected by a seal ring 15. The extrusion is performed using a pressure container composed of a high pressure cylinder 7 and a wound prestressed sheath 5 of metal strip.
Patent GB-575793-A (GB)
Title: Improvements in locking mechanism for indexing members
IPC: B23Q16/04
Filed: 1944-04-06
Abstract: 575,793. Turrets; indexing. LEWIN, F., and BRYAN, C. Y. April 6, 1944, No. 6426. [Class 83 (iii)] Locking mechanism for a rotary indexing member comprises a rotary member secured to and rotating with the indexing member and having a periphery formed at spaced locations, corresponding to the indexing positions, with locking elements arranged in opposed pairs, a pair of locking arms anchored at a location remote from the axis of rotation of the rotary member and being arranged for wedging engagement with a pair of the locking elements so as to lock the rotary member in the position to which it is indexed, and means for opening and closing the locking arms. The invention is shown applied to a lathe turret 12, Fig. 1, having a member 13 secured thereto and formed around its periphery with recesses 14 adapted to be engaged by tapered dogs 15a, 15b carried by arms 16a, 16b. The common pivot 17 of the arms 16a, 16b is permitted a slight movement towards and away from the axis of the member 13, as by forming the pivot as the crank pin of a crank 20 journalled at 21 in a part of the machine such as the turret slide 10. The ends of the two arms may be geared together as shown in Fig. 4, the pivot 17 being formed' half on each arm or wholly on one arm. A spring 18 tends to move the arms into the locking position and they may be opened by the manually or power operated device 19- shown in Fig. 1. The lands 22 between the recesses 14 are relieved so that the rear edge of a recess stands proud of the leading edge to prevent over-running.
Patent GB-485226-A (GB)
Title: Improvement in alloy
IPC: C22C19/00
Filed: 1937-03-05
Abstract: A corrosion-resistant alloy adapted for the production of fine castings such as dental plates comprises 10-35 per cent of chromium, 21-50 per cent of nickel, 20-50 per cent of cobalt, and 0,1-5 per cent of beryllium, with or without up to 8 per cent of molybdenum. The combined nickel and cobalt content is 55-80, and small amounts of silicon, titanium, manganese, and copper may also be present.  In making the alloy, the beryllium is preferably added as an alloy with a heavier metal such as nickel or copper.  Reference has been directed by the Comptroller to Specification 423,562.
Patent GB-565871-A (GB)
Title: Improvements relating to electric battery plate separators
IPC: H01M50/417
Filed: 1943-04-23
Abstract: An electric battery plate separator is made by mixing a synthetic resinoid with a finely divided substance which is subsequently removed, and which on removal leaves a mass having the desired porosity.  Starch is the preferred substance and water may be added to swell the starch grains while the mixture is being made.  In addition, finely divided cotton, wood, kieselguhr or bentonite may be added.  Specified resinoids are polystyrene, polyvinyl chloride, polyethylene and a phenol-formaldehyde condensation product.  Instead of starch, Glauber salts, sugar or common salt may be used.  The starch may be removed by acid, alkali or diastase.  Reference has been directed by the Comptroller to Specification 481,871.
Patent GB-881459-A (GB)
Title: An arrangement for removing and running off castings produced by vertical continuouscasting using the withdrawal method
IPC: B22D11/126
Filed: 1960-02-25
Abstract: 881,459. Extracting castings. MANNESMANN A.G. Feb. 25, 1960 [April 4, 1959], No. 6618/60. Class 83 (1). An arrangement for removing and running out continuous castings is characterized by a transport trolley 4 arranged below the casting plant in a guide frame 2 and capable of running laterally and downwards and carrying the withdrawal table 10, which last may be lowered to withdraw the casting from the mould by driven gears 16 engaging racks on the trolley 4.
Patent GB-249311-A (GB)
Title: Improvements in or relating to display-stands
IPC: A47F5/11
Filed: 1925-03-11
Abstract: 249,311. Dawson, F. B., (Webster, M. L.). March 11, 1925. Card and like stands; rack stands.-A collapsable display stand comprises a casing formed or a single sheet of double faced corrugated cardboard bent and joined to provide two triangular sides 4, a shallow front wall 6 and a vertical back 10. The casing is divided widthwise by partitions each consisting of two layers 12, 14, the layers being provided with end flaps 13 bent forwardly and secured to the sides 4. The layers 14 are secured to the layers 12 at their upper parts and the lower parts bent horizontally to provide shelves 15. The front shelf 8 is provided by a bent extension of the front wall 6. When the shelves are turned down into vertical planes the structure can be collapsed cornerwise. The sides 4 may be creased along a line 18 so that the rear corners thereof may be folded inwardly when the stand is collapsed, a hinged piece of cardboard 20 normally holding the corners erect. Strings 24 may be passed through the partitions to separate the articles &c. displayed. A pocket for a show card &c. may be provided on the back 10.
Patent GB-1473639-A (GB)
Title: Weather-strip
IPC: D03D27/00
Filed: 1974-05-08
Abstract: 1473639 Pile fabrics REDDIPLEX Ltd 8 May 1974 [9 Feb 1973] 6631/73 Heading D1K A pile fabric for a weatherstrip has a pile preferably composed entirely of crimped polypropylene.
Patent GB-1089938-A (GB)
Title: Pump or injector, more particularly for use in pneumatic conveying apparatus
IPC: F04F5/46
Filed: 1964-11-26
Abstract: 1,089,938. Ejectors. H. HÍLTER. Nov. 26, 1964, No. 6640/67. Divided out of 1,089,937. Heading F1E. The subject matter of this Specification is identical with that described in Specification 1, 089, 937 but the claims are directed to an ejector having a pressure fluid inlet whereby pressure fluid passes through an annular throat around the mouth of a nozzle connected to an inlet open to atmosphere.
Patent GB-952006-A (GB)
Title: Multi-layer tablet making machines
Inventor: STOTT FRANK THOMAS
IPC: B29C43/50
Filed: 1962-02-21
Abstract: 952,006. Rotary-table compression moulding machines. JOHN HOLROYD & CO. Ltd. Jan. 22, 1963 [Feb. 21, 1962], No. 6666/62. Heading B5A. A multi-layer tablet making machine comprising a plurality of dies each of which successively receives a plurality of powder fills, which fills are tamped prior to the successive fill entering the die, is characterised in that the tamped layer or layers can be ejected for sampling, compression means being provided whereby the said layer or layers to be sampled are compressed sufficiently to ensure their integrity prior to such ejection. In the machine as described, dies 13, Fig. 4, are located on a rotary table and are fed with powder from three hoppers. Each die 13 is associated with upper and lower tamping plungers 15, 20 the heads 16, 21 of which ride cam tracks which control their entry and withdrawal from the die. Between the first and second and the second and third feeding stations are a pair of upper and lower tamping rollers 26, 27 which co-operate with the plunger heads 16, 21 to effect tamping. Each lower roller is vertically adjustable in a U-shaped member by a screw actuated wedge. Each of the upper roller 26 is carried by a pivoted lever 28 which is normally in the position shown but which can be lowered through a normally operable telemotor link to cause the upper plunger to compress the powder in the die to a greater extent. The telemotor link also causes a sampling cam 46 to move above the lower cam track so that the lower plunger 20 raises the tamped layer or layers to the level of the table so as to be deflected to a sampling shoot. The lower cam track includes weight adjustment cams which operate the -lower plungers to eject a small amount of powder after each fill. Upper and lower rollers at the end of the cam tracks effect a final tamping before the tablet is deflected into a take-off shoot.
Patent GB-212112-A (GB)
Title: A new or improved oil-fuel furnace for the boilers of steam motor wagons and the like
IPC: F23D99/00
Filed: 1923-03-09
Abstract: 212,112. Deighton's Patent Flue & Tube Co., Ltd., Millington, C. A., and Lewin, W. J. March 9, 1923. Spray burners; oil supply.-The burner 7 of an oil fuel furnace for the boilers of steam motor wagons &c. is arranged centrally in a pan 6 carried by a wall 5 depending from the casing 4 of a water jacket 9 which is attached to the boiler base-plate 3. At starting water supplied to the jacket 9 through a valve-controlled pipe 22 connected to the water-space of the boiler is vaporized by burning paraffin-soaked waste in an annular space between a funnel 18 formed in the pan and the wall 5. The steam so formed passes through a pipe coil 15 in which it is superheated to the burner 7 and atomizes the oil supplied through a valve-controlled pipe 13. The oil is preliminarily heated by passage through a coil 10 arranged in the jacket 9. The wall 5 is provided with air-ducts 19 regulated by a hit-and-miss damper 20. When steam is generated in the boiler it is allowed to pass through a valve-controlled pipe to the jacket 9 and then to the burner in the ordinary way.
Patent GB-621553-A (GB)
Title: Case hardening ferrous articles
IPC: C23C8/32
Filed: 1947-03-26
Abstract: In a method of case hardening ferrous articles to give a directly useful case, the articles are heated between 850 and 950 DEG C. in an atmosphere consisting of a carburizing and a nitriding gas, the nitriding gas being 2 1/2 to 5 per cent of the total volume.  The carburizing gas may be raw or prepared towns gas and the nitriding gas cracked ammonia.  Specification 588,547, [Group III], is referred to.
Patent GB-1248366-A (GB)
Title: Improvements in or relating to paddle dyeing machines
IPC: D06B5/12
Filed: 1970-02-12
Abstract: 1,248,366. Paddle dyeing apparatus. JAPAN EXLAN CO. Ltd. and SENBONMATSU KEZARASHI KOGYO K.K. 12 Feb., 1970 [17 Feb., 1969], No. 6892/70. Heading D1L. Knitted articles are dyed in a horizontal cylinderical vessel 1 having a paddle 4 rotatable about an axis parallel to that of the cylinder and having pipes 13 and 14 at the side of the vessel with holes directed downwardly and towards the sides of the vessel for recirculaing dye from the bottom of the vessel, the vessel being divided into one or mgre chambers by partitions 2 (Fig. 1) and the axial length of each chamber being 1/4 to ¢ that of the width R of the chamber measured in a horizontal plane through the axis of rotation 22 of the paddle 4. 1/6 to 1/4 of the circumference of the circle described by the paddle when rotated by an automatically reversible drive (21, Fig. 1) is below the surface of the dye. Steam ejection pipes 7 and steam heated pipes 8 are provided beneath a perforated plate 6. The pipes 13 and 14 are connected by a valve 18 to a pipe 17 for supplying steam or cold water. An example is given of dyeing an acrylic knitted fabric joined into an endless loop and suspended from the paddle.
Patent GB-606006-A (GB)
Title: Improvements in bearing supports
IPC: F16C32/02
Filed: 1946-03-06
Abstract: 606,006. Knife-edge bearings. AVERY, Ltd., W. & T., and SANDERS, L. March 6, 1946, No. 6917. [Class 12 (i)] A bearing member 2 to receive a knife edge is notched at its ends 2a to engage with the side limbs of a link 1 in which the bearing member is mounted by resting on a base limb 1a of the link and the bearing member is retained against unintentional removal by means of a plate 3 formed with inward lugs 3b overhanging the bearing member and secured to the link by a cotter-pin. The bearing member can rock longitudinally and transversely to align with its associated knife edge member by reason of its angular form and by the surface of the base limb 1a of the link on which it is mounted being slightly convex. The arrangement is applicable to a bearing link of a platform weighing machine.
Patent GB-120341-A (GB)
Title: Improvements in or relating to Hair or other Brushes.
Inventor: PEARSON MASON
IPC: A46B3/20
Filed: 1918-04-24
Abstract: 120,341. Pearson, M. April 24, 1918. Bristles, fixing; brush-making tools. - In brushes having the bristles fixed as described in Specification 6181/05, the backing f is formed of a substantial sheet of quick-curing unvulcanized rubber, and the rubber pad a and sheet f are subsequently vulcanized. During vulcanization, the bristle tufts are accommodated in cavities h in a block g and the sheet f, attached by rubber solution e to the pad a, is applied to a hot plate i. The block g and hot plate are adapted to press the parts together while heat at a moderate temperature is supplied by the hot plate.
Patent GB-540610-A (GB)
Title: Improvements in or relating to shafts of athletic implements
IPC: A63B59/00
Filed: 1940-04-17
Abstract: 540,610. Shafts and handles for golf clubs, rackets, &c. REACH, M. B. April 17, 1940, No. 6960. [Class 132 (ii)] A tubular shaft or handle of thin metal for golf clubs, rackets or other athletic implements has openings through its wall to increase torsional action and has the openings filled in with yielding material such as rubber to limit and control the extent of the torsion. As shown in Figs. 4 and :5, the grip end of a golf-club shaft 1 is formed with longitudinal grooves 2 and the applied. In a modification, Figs. 6 and 7 (not base of each groove is pierced shown), the slots in the shaft are filled by placing by a series of slots 3. After a lining tube of rubber within the shaft (supported treatment of the shaft with a by a mandrel) and moulding under pressure so as suitable bonding material, strips to force some of the rubber into the slots. In a of raw rubber 4 are moulded into further modification, Figs. 8 and 9 (not shown) the grooves under heat and an external rubber tube is moulded into the slots. pressure with the aid of an internal Instead of treating the steel shaft with a bonding mandrel, causing the rubber to material prior to vulcanization, the surface of the flow around the shaft and into shaft may first be brass plated, or the rubber may be intimate contact with the grooves and slots. Moulded vulcanized to a brass strip and the brass attached cork 5 and an outer leather cover 6 are afterwards to the shaft by brazing.
Patent GB-141027-A (GB)
Title: Improvements in or relating to gyroscopic transmission apparatus
IPC: F16H33/10
Filed: 1920-03-08
Abstract: 141,027. Fieux, J. March 28, 1919, [Convention date]. Gyroscopic apparatus.-Relates to power-transmission mechanism of the kind in which a gyroscope provides an automatic variable-speed gear as described in Specifications 6424/11 and 6428/11. Properties of the gyroscopic action are utilized to operate a power-transmitting clutch or to control the motor. A cranked driving-shaft 6 imparts a conical oscillating motion to gyroscopic fly-wheels 1 which are driven at a relatively high speed through gearing 33. A periodic torque and a periodic axial thrust are imparted to an alined shaft 4 which has a fork secured to a frame 2 embracing the fly-wheels. This thrust is employed to engage and disengage the shaft 4 with a friction clutch 12 on an ultimately driven shaft 13. The clutch 12 can be disengaged manually through an axially-movable member 15. Modifications using plate and expanding-band clutches are also described.
Patent GB-164817-A (GB)
Title: Improvements relating to shackles for colliery trams or corves
IPC: B61G1/00
Filed: 1920-03-09
Abstract: 164,817. Harris, D. J. March 9, 1920. Couplings, non- automatic.-In a D- shackle for a colliery tram, the pin is fcrmed with two keys at 180‹ apart. The upper one c at the head of the pin is pear-shaped and fits in a correspondingly-shaped hole in the arm b. The lower key h of rectangular shape, is longer than the key c, and can be inserted through a keyway k in the other arm j. The two keyways in the shackle are in alignment, and the distance between the top of key h and the underside of the pear-shaped key c is greater than the distance overall of the jaws of the D. The key h prevents the pin from being completely withdrawn from the shackle, and when locking the pin it is inserted through the keyway k and given a turn of 180‹ whereupon the upper pearshaped key c drops into place. Reference has been directed by the Comptroller to Specification 18669/03.
Patent GB-614428-A (GB)
Title: Improvements in change speed gear transmission controls
IPC: F16H59/20
Filed: 1946-03-07
Abstract: 614,428. Change-speed control. TRIGGS, W. W. (Carter Carburetor Corporation). March 7, 1946, No. 7096. [Class 80 (ii)] [Also in Group XXXVII] In a change-speed gear in which an automatic shift is made in response to engine speed and a further shift in response to movements of the engine throttle to a predetermined position, a control device responsive to a predetermined suction in the fluid intake of the engine renders the further shift means ineffective. As applied to the transmission of a motor vehicle in which an engine 11 drives a propeller shaft 16 through a gear-box 14 and a solenoidoperated overdrive 15, the latter being arranged to be thrown out on full depression of the throttle pedal 25, the carburetter 12 has attached thereto a switch 20 which prevents the completion of the battery circuit to the solenoid 17 when the engine suction and hence vehicle speed exceeds a predetermined figure. The switch 20 has two hollow legs 31, 32, the leg 31 receiving a cup-shaped piston 33 normally urged downwards by a spring 34 and acted upon by engine suction through a port 36 connecting with the venturi 37. Secured to the base of the piston is a spring contact 38 normally slightly spaced from the contact 23 which is insulated from the body 30 and connected to the solenoid 17. The other leg 32 has a slidable plunger 40 and collared pin 42 acted upon by the spring 45 to normally retract the plunger 40, and by the spring 44 to extend the plunger when the pin 42 is contacted by an arm 57 attached to the throttle spindle 51. The differential action of the springs 44, 45 limits the contact pressure when the pin 42 is depressed by the arm 57 and the depression above the piston 31 is insufficient to raise the piston and its contact 38. If the vehicle speed is above the predetermined figure the contact 38 will be withdrawn from the position suitable for contacting the contact 23 and the shift to a lower gear will not then take place automatically until the depression is insufficient to move the piston and the throttle has again been operated under such conditions. Several modifications to the shape of the contacts, such as a spring-loaded disc and a free ball, are also described.
Patent GB-1104553-A (GB)
Title: Process for heating previously reduced products
IPC: C21C5/28
Filed: 1966-02-18
Abstract: <PICT:1104553/C6-C7/1> Pre-reduced solid iron products, e.g. pellets or powder containing 85 or 95% metallic iron, are heated by hot gases recovered from the conversion refining of pig iron in at least two successive stages during each of which a part of the Co contained in the gases, which are passed counterflow through the products, is burnt by the controlled feed of air without re-oxidizing the products. For example, gases escaping from a steelworks converter 2 may be at a temperature of 1600 DEG C. and contain by volume 15% CO2 and 85% CO, giving a ratio of % CO2: (% CO2 + % CO) of 0.15.  The pre-reduced pellets may be heated to 700 DEG C. in the first stage, where the above ratio is 0.4, and to 1130 DEG C. in the second stage, where the above ratio is 0.25, inside a horizontal rotary or shaft furnace heater 1, the gases being burnt in each stage by controlled injection of N2-enriched air.
Patent GB-881811-A (GB)
Title: Improvements in or relating to paper making machines
IPC: D21F1/02
Filed: 1959-03-03
Abstract: 881,811. Paper-making machines. BLACKCLAWSON & CO. March 3, 1959 [March 3, 1958], No. 7374/59. Class 96. A stock supply system comprises a headbox having a stock inlet at one end and a slice outlet at the other with at least one transverse perforate cylindrical rectifying member to the interior of which a secondary stock supply is fed. Fig. 1 shows a headbox 13 supplying stock to a Fourdrinier wire 10. The stock is fed to the headbox through an inlet passage 23 from a chamber 22 supplied from a pump 40, a conduit 42 and branch conduits 43. A control device 44 maintains the level of stock in the headbox while a source 45 maintains an air cushion above the liquid level. The headbox contains rectifier rollers 30, 31, 32, 33, 34, 35. Each of the rolls 31, 32, 33 is of the form shown in Fig. 2, containing an inner perforated supply pipe 60 mounted in rotary joints 66 to permit the pipe and the roll to be rotated through a sprocket 62 while fed with stock from lines 51, 52 supplied from a pump 50 connected to a line 49 forming a by-pass from the conduit 42. In another form the pipe 60 is closed at one end, towards which it tapers, and is fed only from the other. In other forms the roll may be stationary while only the pipe rotates or vice versa. The special rectifier rolls may be applied to open headboxes or closed headboxes of the pressure type. Specifications 664,917 and 760,945 are referred to.
Patent GB-1536135-A (GB)
Title: Drilling and punching machines for forming register holes in photographic film
IPC: B21D28/04
Filed: 1975-02-21
Abstract: 1536135 Gauging PROTOCOL ENG Ltd 20 Feb 1976 [21 Feb 1975] 7471/75 Heading B3B [Also in Division B4] A method of locating the tip of a tool 3, e.g. a drill or a punch, accurately in relation to a desired working position on a workpiece 8, e.g. photographic film, comprises projecting on to the surface of said workpiece a shot of light that indicates the position that the tip of the tool will touch when a tool carrying spindle 5 is moved towards the workpiece. A light projecting system may comprise a lamp 12 mounted in a housing 14 connected by means 18 to a fixed tool head 1. A lens 17 directs light on to an angle mirror 19 to deflect the light concentrically with the tool axis and focus it on the workpiece 8. The mirror 19 has a hole 20 to allow the tool 3 to pass therethrough. The mirror is mounted on a foot 7 which engages the workpiece and holds it against surface 2 before the tool 3 engages it. Alternative optical arrangements (Figs. 3 and 4) avoid having a mirror with a hole 20, but have the disadvantage that the axis of the light beam is oblique to the tool axis, and any variation in thickness of the workpiece will alter slightly the position of the light spot. The lens 17 may be blanked-off by a mask 21 to reduce the amount of reflected light. A stop 6 gauges the required depth of penetration of the tool. After the tool is positioned by means of the spot of light, the workpiece is clamped in position by a clamping foot 7.