baber/WOPTO huggingface dataset:
Patent GB-115120-A (GB)
IPC: F04D29/28
Abstract: 115,120. British Thomson - Houston Co., (General Electric Co.). May 21, 1917. Impeller blades.-Blades having a radial flange on their rear side to stiffen the outer ends are cast into the hub and web portions. The web 11 terminates short of the periphery of the blades. In the form shown, the blades are formed from flat sheet metal. The radial flanges 13 are bent out and secured together by rivets 18. The root portion of the blade tapers inwards and has scalloped edges 21. The inner parts of the blades are curved to form entrance buckets and the edges have recesses 19<a >into which the metal runs when the hub 10 and web 11 are cast round the blade. roots.
Patent GB-1496784-A (GB)
Title: Rate of change of speed sensors
IPC: G01P15/03
Filed: 1975-02-28
Abstract: 1496784 Accelerometers BENDIX WESTINGHOUSE Ltd 28 Feb 1975 [14 March 1974] 11527/74 Heading G1K An accelerometer comprises a housing 5 rotatably mounted on a support 1 and formed by inner, intermediate, and outer body parts 6, 22, 7, the intermediate part 22 defining with the outer part 7 a helical passage 8 coaxial with the axis of rotation of the housing, the helical passage 8 being filled with hydraulic fluid and having its ends connected to respective chambers 11, 14 on opposite sides of a diaphragm 10, angular acceleration or deceleration of the housing causing a pressure difference between the ends of the helical passage 8, and the resultant movement of the diaphragm 10 being transmitted by push rods 17, 18 to the exterior of the accelerometer. The accelerometer is intended for use in a vehicle to detect wheel skidding while braking, the support 1 being mounted by a flange 2 on a part of the vehicle structure, while the housing 5 is drivingly connected to a wheel or axle by a boss 21 on the part 7. A spring 19 urges the rod 18 towards the diaphragm 10. The hydraulic connections are arranged so that when deceleration of the wheel occurs, the pressure in chamber 11 is higher than that in chamber 14, and the diaphragm areas and spring 19 force are such that when the deceleration exceeds a pre-set level, indicating skidding, the rod 18 is moved to pass a signal to a modulator valve of the vehicle braking system. A greater area of the diaphragm is exposed to the chamber 11 once the diaphragm has moved out of contact with an annular seating 23.
Patent GB-696000-A (GB)
Title: Improvements in and relating to pressure indicating device for pneumatic tyres and other inflatable articles
IPC: B60C23/02
Filed: 1951-05-17
Abstract: 696,000. Pressure gauges. SOC. NOUVELLE DES ETABLISSEMENTS BARDIN, RENARD & COUCHE. May 17, 1951 [June 6, 1950], No. 11578/51. Class 106 (ii). [Also in Group XXXIV] A pressure-indicating device for pneumatic tyres, designed to serve as a dust cap therefore, is constructed such that a rod projects from the cap for inflation pressures exceeding a certain value but such that the rod recedes abruptly out of sight when the inflation pressure falls below a predetermined amount. The device has a diaphragm 23 that is normally concave on its outer surface as in Fig. 1. For inflation pressures above a certain value the diaphragm 23 snaps into convex form, Fig. 2, against spring means 28 and causes a rod 25 to project from the cap. If the pressure falls, then, at a predetermined pressure the spring 28 causes the diaphragm 23 to snap back into concave form, Fig. 1, and the rod 25 to recede out of sight. The diaphragm may be of rubber bent into concave form by suitable shoulders 29, 39 on its central gripping means 31, 38. The device has a hollow part 13 so arranged that when the cap 1 is screwed on to the tyre valve, the part 13 depresses the valve stem 18 of the tyre and causes the diaphragm 23 to be subjected to the inflation pressure in the tyre through holes 14 and 12. A sealing washer 17 is included.
Patent GB-270895-A (GB)
Title: Gauge for the testing of external screw threads for limit
IPC: G01B3/40
Filed: 1926-05-03
Abstract: 270,895. Johnson, C. G. May 3, 1926. Surface and outline gauges.-In a limit gauge for testing external screw threads of the kind in which cylindrical members or rollers come into contact with the work, the rollers 2, 3, 4 are free to rotate when in use and are arranged in series with the pair or pairs at one end at a greater distance apart than the pair or pairs at the other end, while the distance between at least one pair can be adjusted. The adjustment takes the form of a sleeve 6 eccentrically mounted on a bolt 7 and locked by a nut 8. The roller is free to rotate on the sleeve. Rings or discs 4a, 5, 5<a> on the rollers enable the thread surface to be tested. Specification 255,646 is referred to.
Patent GB-881732-A (GB)
Title: Clips for attaching section rails
Inventor: MITCHELL DENNIS SYDNEY BARNS
IPC: E04B9/12
Filed: 1957-04-09
Abstract: 881,732. Suspended ceilings. TENTEST CO. Ltd. April 9, 1958 [April 9, 1957], No. 11614/57. Class 20(4) [Also in Group XXV] Relates to clips for connecting section rails to other members, the section rails being of the kind comprising a web 9 having two spaced portions and at least one transversely projecting flange 8. According to the invention, the clips are each provided with a tongue 7 which can be inserted between the spaced portions of the web 9 to engage the inner surfaces thereof and a portion or portions 3 perpendicular to and extending in the same direction as the tongue against which portion or portions a flange or flanges 8 of the section rail can lie. As shown, the clip comprises an L-shaped member having the tongue 7 cut from a limb 2 and adapted to engage with a double web 9 of a T section rail, the flanges 8 of which are inserted under a limb 3 of the clip. The limb 2, is secured to a structural member 6 by screws. In another arrangement Figs. 3 and 4 (not shown) the limb 2 is extended to form a hook for engagement with a flange on a channel section structural member. In the case of an L-section rail, the upper limb of the L may be turned over to form a slot for the tongue 7.
Patent GB-728104-A (GB)
Title: Improved labelling machine
IPC: B65C3/12
Filed: 1953-04-28
Abstract: 728,104. Labelling machines. SEITZ-WERKE GES. April 28, 1953 [May 14, 1952], No: 11666/53. Class 73. [Also in Group XVI] Labels are fed horizontally from a stack 14 Fig. 1 by a feeding device 40 between a gumming roller 26 and a feed roller 27 and a guide rail 61 guides each label downwards tangentially to a horizontally disposed bottle 10 supported and rotated by rollers 11, 12, 13 which also apply the label. On insertion of a bottle 10, a stop 38 Fig. 2 is pressed back against a spring 39 and operates a lever 43 which releases a catch 44 Fig. 3 on a cam wheel 46, the catch 44 then engaging in a continuously rotating locking wheel 45 so that the cam wheel now rotates whereby the feeder 40 is first moved a little to the rear and 'the label is thus drawn backwards from under a projecting label guide 41 on the front wall of the label box ; then the feeder 40 moves forward to take the label between the rollers 26, 27. After the stop 38 has been pushed to the rear, the bottle 10 is released and the spring 39 presses the stop 38 to the front so that the lever 43 returns to its original position. The cam wheel 46 however moves on in the meanwhile until the spring 47 of the catch 44 moves over the stop pin 48 of the lever 43 and thereby the catch 44 is positively raised from the locking wheel 45 so that the coupling between it and the cam wheel 46 is interrupted and the cam wheel and the feeder 40 remain stationary until the next bottle is inserted. The label stack is provided with a loading 'roller 49 mounted in selected slots 50 in the sides of the label box which sides are laterally adjustable. The rollers 11, 12 may be of conical form and the roller 12 may be pivotally mounted and spring pressed against the bottle 10 to accommodate bottles of various sizes.
Patent GB-851038-A (GB)
Title: Improvements in or relating to the polymerization of ethylene
IPC: C08F10/00
Filed: 1958-05-27
Abstract: Ethylene is polymerized in the presence of a freshly exposed surface of a finely divided metal selected from vanadium, niobium, tantalum, thorium, uranium, or a rare earth metal.  The polymerization may be effected in bulk or in the presence of an inert diluent or solvent such as hexane, heptane, cyclohexane, benzene, toluene, xylene, chloroform, carbon tetrachloride, or chlorbenzene.  The metal may be obtained in the desired condition, by ball milling in an inert atmosphere, atomizing the molten metal, reducing a metal oxide with hydrogen, or preparing the metal in colloidal form.  The finely divided metal may be activated with halogen such as iodine or bromine, hydrogen halides such as hydrogen chloride or hydrogen bromide or the halides of the metals themselves.  In the examples the polymerization is carried out in a cylindrical vibratory ball mill constructed of stainless steel which is filled to an extent of 80% with 0,5 inch stainless steel balls in the presence of n-heptane and in examples 1-4 the catalyst employed is titanium hydride, zirconium hydride, niobium hydride and tantalum hydride respectively whilst in examples 5-7 the metal hydride is formed in situ by reacting titanium metal powder, vanadium metal granules, or manganese metal respectively with hydrogen.  The polyethylene is purified by leaching with a 50:50 mixture of n-butanol and 48% hydrofluoric acid and washing it with water and ethanol.
Patent GB-779770-A (GB)
Title: Improvements in or relating to the packing of bricks and like articles
Inventor: MCCALLUM STEWART FERGUSON
IPC: B65D71/00
Filed: 1955-04-22
Abstract: 779,770. Packaging bricks. RAEWELL FIREBRICKS, Ltd. April 23, 1956 [April 22, 1955], No. 11711/55. Class 94( 1 ). Bricks are stacked in rows, e.g. as shown, with their longest sides parallel and their end faces coplanar, the number of bricks in the end rows 1 and 2 being at least one less than the number in the intermediate rows. The stack is protected by cardboard strips (not shown) and held together by a tie 10. The stacking of the bricks is facilitated by a jig consisting of a wooden tray 7 fitted with corner blocks 8. Alternatively, the bricks may be stacked on a pivoted base plate inclined at 10-20 degrees to the horizontal and fitted with a side member which is shaped to correspond with the desired profile of the stack.
Patent GB-140255-A (GB)
Title: Improvements in bobs for cross grinding pens
IPC: B24B19/16
Filed: 1919-05-10
Abstract: 140,255. Hearne, H. May 10, 1919. Wheels and other tools.-In order to secure even wear of the whole grinding-surface of a bob for cross-grinding pens, the circumferential area of the grinding-surface is made to increase gradually across the face of the bob from the edge thereof that effects the narrow grinding near the point of the pen to the edge corresponding with the termination of the wider part of the grinding. Figs. 1 and 2 show a bob A, according to the invention, suitable for crose-grinding a pen of the shape shown in Fig. 3, the grinding-surface I comprising alternate grindin ches 3 and gaps 2, the width of the grinding-patches at one edge of the bob from the line 8 to the line 9, Fig. 2. corresponding to the width of the cross-grinding at the line 4 of the pen, and the width of the patch between the lines 6, 7 at the other edge of the bob corresponding to the width of the pen at the line 5 where the grinding terminates; the edges of the patches are shaped to correspond with the shape of the edges of the pen between the lines 4, 5. The bob may have a grinding-surface formed by the application of grinding-powder and glue &c., a templet being used in forming the gaps and grinding-patchee; or the bob may be made of carborundum or like material moulded to shape.
Patent GB-145926-A (GB)
Title: Improvements in or relating to quick release devices
IPC: B64D17/38
Filed: 1919-05-10
Abstract: 145,926. Gregory, T. May 10, 1919. Closed hooks.-A device to enable an aviator to release himself quickly from a parachute, applicable also to other purposes, comprises a member A secured by a cord A<2> to the parachute and formed with an inclined slot A<3> to receive a cord attaching the device to the harness worn by the aviator. The cord is retained in the slot by a sliding sheath B provided with two pivoted arms B<3> carrying spring-pressed sleeves B<4> engaging under lugs A<4> on the member A. The sleeves B<4> are depressed and moved clear of the lugs to enable the sheath B to be raised.
Patent GB-474235-A (GB)
Title: Improvements relating to ventilators
IPC: F24F13/062
Filed: 1936-04-27
Abstract: 474,235. Ventilators. MARSHALL, J. April 27, 1936, No. 11868. [Class 137] A ventilator, particularly for use in ceilings, comprises an inlet 2 and spaced flared members 3 between which are air diffusing passages 6, 7 through which the air passes at a relatively low velocity, a baffle 4 supporting an air directing device 10 through which an air stream of relatively high velocity is discharged. This device may be of the kind described in Specification 228,440, [Class 137], the outlet 9 being mounted in a bearing 11 having a flange rotatable in a bearing ring formed by the baffle 4, a masking extension 12 being formed on the bearing 11. An annular disc 17 pivoted at 18 and operated by a handle 19, may cut off the air supply to the diffusing passages. In a modification, three air directing devices may be provided, and a circular flap valve for varying the amount of air passing through the ventilator as a whole.
Patent GB-988967-A (GB)
Title: Improved coloured photographic images
IPC: G03C7/42
Filed: 1963-03-27
Abstract: 988, 967. Photographic processes. AGFA A.G. March 27, 1963 [April 5, 1962], No. 12132/63. Heading G2C. The invention relates to a process of preventing colour fog when colour developing a photographic silver halide material, wherein, after developing the image, the material is treated in a bath of pH higher than 7 and containing a water-soluble hydrazine salt, a water-soluble hydroxylamine salt or formamidine-sulphinic acid, and is simultaneously or subsequently bleached in a bleachfixing bath. The material may be treated, after development, in a stop-fix bath comprising hydrazine sulphate, thiosemicarbazide, hypo, phosphates and sulphite, and then in a bleach-fix bath of similar composition comprising also ethylene-diamine tetraacetic acid in the form of its trisodium and iron salts. The bleach-fix bath also may contain iodide according to Specification 926,569.
Patent GB-433893-A (GB)
Title: Improved device for playing games of chance
IPC: A63F5/04
Filed: 1934-04-23
Abstract: 433,893. Apparatus for playing games of chance. MOSSE, G. A., 11, Rue Joseph Cadef, Nice, France. April 23, 1934, No. 12159. Convention date, April 24, 1933. [Class 132 (ii)] Apparatus for playing games of chance comprises a rotatable disc having depending tubes of various colours and surrounded by a fixed concave or conical surface in combination with a plurality of balls adapted to be thrown on to said surface and a stacking board. The disc d is rotated by the hand wheel a and has three depressions l in each of which is a hole n leading to a glass tube b, j or r, the tubes being differently coloured with the primary colours. The disc d is in the centre of a fixed concave or conical surface g and rotates on a pivot i carried by a support h resting on a cross-member k of the table, Fig. 6, or on ball bearings f on a circular ledge, Fig. 2. White balls are thrown on to the surface g and enter the tubes b, j and r. Each tube b, j, r can be closed at its lower end by a removable disc e secured to the tube by a collar c. A staking board with a green cloth cover, Fig. 7, is provided. The odds provided by the device are given in the Specification. According to the Specification as open to inspection under Sect. 91, the balls may also be coloured. This subject-matter does not appear in the Specification as accepted.
Patent GB-437201-A (GB)
Title: Improvements in or relating to oscillary circuit arrangements and reactance devices for use therein
IPC: B61D25/00
Filed: 1934-04-23
Abstract: 437,201. Condensers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. April 23, 1934, Nos. 12210 and 12211. Convention dates, April 21, 1933. Drawings to Specification. [Class 38 (ii)] [See also Groups XXXVI and XL] A condenser having its current-carrying elements constituted by a metallic coating or deposit on ceramic material has its adjusting spindle and the bushing through which it passes constructed of an alloy such as that known under the Registered Trade Mark " Invar " and having negligible temperature coefficient of expansion.
Patent GB-359475-A (GB)
Title: Circuit arrangement for the conversion of variations of light intensity into electrical potential variations
IPC: H01J40/00
Filed: 1930-04-17
Abstract: 359,475. Optical sound-reproducing apparatus; television. GRUTZMACHER, M., 3, Hahnelstrasse, Friedenau, Berlin. April 17, 1930, No. 12251. Convention date, April 19, 1929. Addition to 345,317. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] In a known method of converting light variations into electrical variations, a source of light a, Fig. 1, illuminates a slit in a shutter b which is focused on a film f and illuminates the cell g. According to the invention, the use of the shutter b is avoided by employing a light-sensitive cell which is sensitive only at a point. The film f, Fig. 2, is illuminated by a source a and an image is projected into the plane of the cell d, so that as the film is moved the cell receives each portion of the film in turn. The cell d consists of a metal point resting on a crystal. The method is applicable to television, the conversion of optical sound records into sound, and the measurement of radiation energy.
Patent GB-820200-A (GB)
Title: A device for dispensing paste from collapsible tubes
IPC: B65D35/34
Filed: 1958-04-18
Abstract: 820,200. Dispensing from collapsible tubes ; container closures. SEELING, L. R. April 18, 1958, No. 12331/58. Classes 66 and 125(3). A device for dispensing paste from a collapsible tube 9 comprises a casing 1 with side walls 4 and end walls 5, 6, one of said end walls having an opening 7 to receive the neck 8 of the tube 9, each side wall 4 having an inclined slot 14 therein and a winding spindle 15, extending through the slots 14, which has means for anchoring the end of tube 9 and is rotatable to collapse the tube. The casing 1, which may be of metal, wood or a plastic material, e.g. polystyrene, has rear and front walls, the front wall 3 having an opening 11, which may be closed by a panel 12 with handle 13, for inserting the tube 9. The spindle 15 has a knob 20 and a longitudinal slot 17 to receive the closure 18 of tube 9 the extreme end of which fits into a recess 19 in the spindle. An opening 23 in the end wall 6 allows the tube to be positioned in slot 17. A closure cap 24, preferably of polystyrene, has a body 25 with threaded socket 26 and axial chamber 27 containing a plunger 28 urged towards socket 26 by a spring 29. An outlet passage 30 is normally closed by the plunger 28 which also closes the outlet in the neck 8 of tube 9 ; and a further passage 31 allows escape of air from above the plunger. When the spindle 15 is turned to squeeze out paste, the plunger 28 is forced out of the tube, so compressing the spring 29, and opening the passage 30 thereby expelling paste through the passage; when pressure on the tube is released the plunger again closes the passage 30 and the tube outlet under the action of spring 29. The rear wall of casing 1 may be grooved for mounting the device on a wall bracket.
Patent GB-238604-A (GB)
Title: Improvements in current limiters for alternating or direct currents
IPC: H01H77/06
Filed: 1924-05-20
Abstract: 238,604. Garavini, E. May 20, 1924. Electromagnetic switches, tripped mechanically. A current limiter comprises a solenoid with series and shunt windings 3, 4, the series winding being permanently connected in the consumption circuit and the shunt winding being connected temporarily across the supply circuit, when the current consumed reaches the limit, by a relay 8, 12 having a short, hollow core 6 within the solenoid, the windings then acting together on the main core 13 and breaking the consumption circuit at 15, 17 and 15<1>, 17<1>. The electrical connections are indicated in Fig. 1, in which a, a<1> are the supply leads and b, b<1> the consumption leads. When the main core is drawn up against the action of the spring 16, contacts 15, 15<1>, carried by the core and provided with insulating arc-preventing baffles 20, 20<1>, are withdrawn from engagement with the pivoted spring-pressed contacts 17, 17<1> which take up the position shown in Fig. 3, in which they maintain the core in the raised position until they are separated by rotating an externally-operated cam 21, thereby allowing the core to drop and the circuit to be re-established if the current has, in the meantime, been reduced. The current limit may be varied by adjusting screw weights 10, 10<1> along the relay arm 8 which is pivoted at 9. The lower contact parts are surrounded by an inner enclosure 26.
Patent GB-684108-A (GB)
Title: Improved fixing clip
Inventor: CARTWRIGHT HAROLD NORMAN
IPC: E04B9/24
Filed: 1950-05-18
Abstract: 684,108. Wall and ceiling linings. BOWATER'S LLOYD PULP & PAPER MILLS, Ltd. May 17, 1951 [May 18, 1950]. No. 12512/50. Class 20 (iv). [Also in Group XXV]. Means for securing wall or ceiling boards to a framework composed of members of inverted T-section comprises clips 3, with prong-like edges 4, 5, at each end, which are passed through slots 2 in the webs of the members 1 and then turned over so that their edges engage the boards 7, 8. The clip is made with an angle-shaped projection 6 by means of which it is turned over. Specification 584,018 is referred to.
Patent GB-901992-A (GB)
Title: Improvements relating to opposed piston diesel engines
Inventor: JACKSON PERCY
IPC: F02F1/18
Filed: 1958-04-21
Abstract: 901,992. Cooling cylinders. DOXFORD & SONS (ENGINEERS) Ltd., WILLIAM. April 21, 1959 [April 21,1958], No. 12615/58. Class 7(2) In an opposed piston two-stroke engine having water-cooled cylinder liners 1, 3, making gas tight joints with a combustion chamber portion 5 having a separate cooling jacket 8, connecting elbows ,e.g. 24, between the separate cooling jackets 8, 12, are formed with a separable joint 27 spaced by an air space 42 from the cylinder liner gas tight joint. As shown such cylinder liner has a number of connecting elbows 24, 22, associated therewith, and the part of each liner adjacent the combustion belt 5 is provided with ribs 14 and shrunk-on strengthening rings 18, the water jackets opening through parts therein into annular chambers 19, 20.
Patent GB-437335-A (GB)
Title: An improved process for the manufacture of printing blocks or plates
IPC: G03F7/04
Filed: 1935-04-29
Abstract: 437,335. Photo-mechanical printing- surfaces. WECK, A., 70, Rue du General Leman, Brussels. April 29, 1935, No. 12804. Convention date, Feb. 18. [Class 98 (ii)] In a process of preparing blocks or plates for relief printing, a metal plate is coated with bichromated gelatin, dried, coated with bichromated albumen, again dried, exposed to light under a line or screen negative, washed with cold water, developed with warm water and finally treated in a bath of bichromate and chrome alum and dried. The final bath may consist of 40 gms. each of chrome allum and ammonium bichromate in 1000 gms. water. The base plate may be of zinc, aluminium, copper or sheet iron.