baber/WOPTO huggingface dataset:
Patent GB-757652-A (GB)
Title: Improvements in or relating to breathing apparatus
IPC: B63C11/22
Filed: 1954-06-14
Abstract: 757,652. Respiratory appliances. SCOTT AVIATION CORPORATION. June 14, 1954 [June 16, 1953 ; May 24, 1954], No. 17392/54. Class 81(2). Breathing apparatus for underwater use comprises a mask having an inlet chamber and a breathing chamber, exhalation valve means and means for supplying breathing fluid to the inlet chamber including a demand valve in the inlet chamber actuated by a diaphragm whose outer surface is exposed to the water pressure. Compressed air storage tanks 31, 31<SP>1</SP> mounted on a backplate 16 are connected by hoses 64, 147 with the face mask 46. The storage tanks 31, 31<SP>1</SP> are detachably secured to the back plate 16 by flexible bands 32, 32<SP>1</SP> and are provided with shut-off valves 30, 31<SP>1</SP>. Compressed air passes from the tanks 31, 31<SP>1</SP> through pipes 26, 26<SP>1</SP> to a reduction valve casing 38 which houses a spring-loaded hexagonal check valve 42, Fig. 13. The check valve 42 is normally held open by the pressure of air passing round it but on rotation of a knob 47 may be held open by a pin 48. Air then passes through a reduction valve 44 to a chamber 60 and thence leaves the casing 38 to pass through the hose 64 to the mask 46. The operation of the reduction valve 44 is controlled by a spring-urged diaphragm 68 which is subjected on one side to the pressure of the surrounding water and on the other side to the pressure in a pocket chamber 67 associated with the flow of air leaving the casing 38 by a venturi nozzle 62. Air enters the mask 46 after passing through a regulator 83 which houses a demand valve 85, Fig. 9, operated by a diaphragm 86 which is exposed on one side to the surrounding water and on the other side to air within an inlet chamber 110 in the regulator 83. Air flows from the inlet chamber 110 to the breathing chamber of the mask 46 through a check valve 111. The mask 46 is provided with a main exhalation valve 132- and a control exhalation valve, the latter having a chamber 137 connected with the inlet chamber 110 of the regulator 83 by a pipe 141. One side of the chamber 137 is constituted by a diaphragm 136 which forms the control exhalation valve, a valve seat 138 being provided. An inlet duct 113 with a cap 114 projects upwardly from the regulator 83. If desired, when not under water the user of the apparatus may open the inlet duct 113 by unscrewing the cap 114 to allow ambient air to flow directly to the mask 46. Alternatively the inlet duct 113 may be replaced by a curved inlet tube, Fig. 10 (not shown) which is closed, when desired or when the apparatus is submerged in water, by a buoyant ball. In an emergency a valve 146, associated with the reduction valve casing 38 is opened so that compressed air by-passes the reduction valve by flowing directly to the mask through hole 149 and hose 147.
Patent GB-803993-A (GB)
Title: Improvements in or relating to rubber compositions
Inventor: GURNEY WILLIAM ARTHUR
IPC: C08K5/01
Filed: 1954-06-15
Abstract: A natural rubber composition is prepared by masticating crude rubber with oil or other softener in an internal mixer in such manner that the oil or other softener is present from the commencement of the mastication in an amount of not less than 10 per cent of the weight of the rubber.  Preferably the whole of the oil or other softener is introduced into the internal mixer, together with carbon black and antioxidant, and the rubber added thereto.  Prior to its addition the rubber may be milled just sufficiently to form a sheet.  The mineral oil may be a naphthenic or aromatic petroleum fraction, and the mastication may be effected in an atmosphere of nitrogen.  In an example 25 parts by weight of polymethyl styrene, 50 parts of gas black, and 2 parts of antioxidant are introduced into an internal mixer.  There are then added 75 parts natural rubber, 5 parts zinc oxide, and 2 parts stearic acid, and mastication is effected at 150 DEG  C. in an atmosphere of nitrogen.  After cooling, sulphur and vulcanization accelerator are added in the mixer or on a mill.  In other examples the rubber is masticated with (a) mineral oil, (b) liquid paraffin, and (c) mineral oil and hexamethylene tetramine.
Patent GB-745238-A (GB)
Title: Fuel oil compositions
IPC: C10L1/26
Filed: 1953-06-24
Abstract: A fuel composition consists essentially of a petroleum oil distillate having a initial boiling point above 300 DEG F. and containing at least 10 per cent of cracked stock, and a small proportion of at least one oil-soluble primary aliphatic amine having a tertiary carbon atom attached to the amine group.  Amines referred to are 2, 4, 4-trimethyl-2-amino-pentane, t-C12-15 H25-31NH2 and t-C18-24H37-49NH2.  The composition may also contain surface active agents, such as oil-soluble phosphates.  e.g. those obtained by esterification of C5-C13 oxo alcohols; alkyl phenol sulphides, e.g. the alkali metal and alkaline earth metal salt thereof, such as barium and calcium tertiary octyl phenol sulphides, and their reaction products with phosphorus sulphides; sulphonates and naphthenates such as alkali and alkaline earth metal oil-soluble sulphonates and naphthenates such as sodium and calcium petroleum sulphonates, and ammonium petroleum sulphonates; phosphatides such as leoitheins; and phosphosulphurized petroleum hydrocarbons, for example those obtained by reacting a phosphorus sulphide with lubricating oil stocks, especially bright stock, high molecular weight paraffins, aromatics, cyclic aliphatics, alkaryl compounds, petrolatums, waxes and solvent extracts of petroleum fractions; the phosphosulphurized hydrocarbon may be stabilized by treating with basic or unsaturated compounds, details of which are given.  The oil may consist of 30 per cent catalytically cracked stock, 50 per cent thermally cracked stock and 20 per cent virgin stock; the oil may also contain minor proportions of residual hydrocarbons.
Patent GB-1429308-A (GB)
Title: Railway vehicles
IPC: F16F13/08
Filed: 1972-04-17
Abstract: 1429308 Railway vehicle undercarriages DUNLOP Ltd 5 April 1973 [17 April 1972] 17554/72 Heading B7L [Also in Division F2] A railway vehicle has rubber springs 12, 13 supporting each axle box 8 from the vehicle underframe 9, each spring comprising annular rubber members bonded between a pair of rigid metal end plates to provide a closed chamber 12A, 13A filled with inelastic fluid such as a mixture of alcohol and water so that the fluid modifies the resistance to compression and tension of the spring, each spring being inclined such that it acts in both shear and compression to support the vehicle weight. Pairs of springs 12 and 13 are connected end-to-end by spacer blocks 14 to form spring sets 10, 11. Initial loading of the vehicle is borne by the springs 12, 13 of each set in series until its block 14 engages intermediate stop abutments 19, 20 carried by the axle box 8. The blocks 14 associated with a particular box 8 are connected by a rigid link 15 and further loading of the vehicle causes deflection of the springs 13 only. As shown in Fig. 6, each chamber 12A and 13A has a fluid inlet (23, 24) leading to a respective cylinder within the block 14 containing a piston 25 which is movable by screw means 31 to vary the volume of fluid within the spring. Baffles 32 to damp fluid movement within the chambers are carried by the block 14 as shown or by annular interleaving plates bonded between adjacent annular rubber members.
Patent GB-1452442-A (GB)
Title: Civil engineering machines
IPC: E21B7/00
Filed: 1974-04-22
Abstract: 1452442 Earth working apparatus POCLAIN 22 April 1974 [21 May 1973] 17555/74 Heading E1F A tool such as a drill auger 23a and its hydraulic drive motor 24a or a grab is suspended from the outer section 10a of a telescopic crane jib 7a via an arm 15a to which is connected a second arm 19a pivoted, e.g. to the head 16a of the jib, the arm 19a constraining the tool to move vertically as the jib is pivoted and simultaneously retracted or extended.
Patent GB-291974-A (GB)
Title: Improvements in globes or covers for lighting purposes
IPC: F21V3/00
Filed: 1927-07-01
Abstract: 291,974. Johnsen & Jorgensen Flint Glass, Ltd., and Ellis, F. July 1, 1927. Overhead lamps.-A dust-proof globe, more particularly for diffused on indirect lighting, comprises a bowl A. of glass or other transparent or translucent material, supported by chains B<1>, B<2>, B<3>, and provided with an upstanding flange A<2> adapted to engage with a depending flange E<1> of a readily detachable hood E which is also made of transparent or translucent material and carries a source of light G. The free edge of the flange E<1> may rest directly on the bowl A or the weight of the hood E and lamp G may be taken by the cable 1. The lamp holder F may be secured to the hood E in any suitable manner, such as by means of screw rings H which allow of adjustment for focussing purposes.
Patent GB-129982-A (GB)
Title: Improvements in Railway Spikes.
IPC: B21G3/00
Filed: 1919-07-14
Abstract: 129,982. American Spike Co., (Assignees of Sessler, M. K., and Rosenberg, H.). Aug. 18, 1915, [Convention date]. Drive-screws.-A railway spike comprises a head 4, which may be plain or provided with a groove 5 for the insertion of an extracting tool, and a shank of polygonal form, the lower part of which is twisted to form a helix so that the spike is turned as it is driven into the wood. The twisted portion of the shank has extended corners forming fins or ridges which merge into the corners of the untwisted square portion 3 at the head of the shank. In one construction. the fins 10, Fig. 4, are formed by an extension 10<a> of one side and an inclined portion 10<b> forming an obtuse angle with the adjacent side. In another construction, Fig. 5, the walls 17 and 18 of the fins 16 are parallel. The fins may be continued to the end ol the piercing point 12.
Patent GB-664865-A (GB)
Title: Transfer mechanism for counters
IPC: G06M1/16
Filed: 1949-07-04
Abstract: 664,865. Counting-apparatus. TRIGGS, W. W. (Veeder-Root, Inc.). July 4, 1949, No. 17617/49. Class 106 (i). A transfer unit T between two adjacent wheels 15, 16 of a counter comprises, in successive parallel planes, a radially-slotted disc 49 intermittently driven by a stud 44 on the lower wheel 15, locking teeth engaged by a notched locking disc 41 on the lower wheel 15 and a pinion 47 driving a wheel 46 secured to the wheel 16. As shown, alternate teeth of the pinion 47 are widened to form the locking teeth 52. The locking disc 41 and a disc 40 carrying the driving stud 44 are secured to the wheel 15 by pins 24, and are spaced by a washer 42 to provide a clearance gap 43 for the disc 49. The slots 50 in the disc 49 are approximately tangential to the wheel 15 upon engagement and disengagement by the stud 44, so that the unit T gradually acceler ates and then decelerates without shock. Moreover, the unit T is driven by the stud 44 during one-fifth of a revolution of the lower wheel 15 so that the mean speed of the higher wheel is one-half that of the lower wheel. Transfer between the wheel 16 and next higher wheel 17 is by the mechanism described in Specification 516,173.
Patent GB-182464-A (GB)
Title: Improvements in aircraft
IPC: B64C3/50
Filed: 1922-06-27
Abstract: 182,464. Dewoitine, E. June 27, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Planes, construction of; steering and balancing.-Aircraft wings have indeformable front portions a, rigidly secured to the fuselage, and rear portions formed of upper and lower flexible members b<1>, b<2> connected to ribs c which are hinged to the portions a at c', so that the camber of the wings increases as the incidence is increased. There may be flexible trailing edges g deformable by the wind. For steering purposes, the wings on opposite sides of the machine may be separately operated. Springs d may connect the members b<1> to the ribs c. The ribs c may be moved by cams e on shafts f, or, as shown in Fig. 4, they may be actuated by hollow rods i screw-coupled to the front portions a by nuts having drums j around which cords q are wound. The cords q are passed around pulleys i<1> on a shaft m, which can be turned by a wheel o through worm-gear m, for extending or retracting the rods i.
Patent GB-571927-A (GB)
Title: Improvements in the production of self-locking nuts
IPC: B21K1/70
Filed: 1943-10-26
Abstract: 571,927. Making nuts from powdered metal. ALLIED CONTROL CO., Inc. Oct. 26, 1943, No. 17667. Convention date, Feb. 2. [Class 82 (i)] [Also in Group XXII] Lock nuts, of the type having a polygonal socket 3 integral with the nut, and the sides provided with tabs 6 that are turned down to secure a resilient insert in the socket, are produced from powdered metal introduced into a polygonal die space 12 closed by a plunger 13 carrying a mandrel 15 and an ejector stem 14. A corresponding punch 16 out away at 16a to form the walls 3 and tabs 6 is carried by a press head 17. Rods 18 slide through the member 10 and carry a cross-bar 19 that operates the ejector in the top strokes. The compacted blank is tapped and then heat treated to produce a coherent mass and the nut is finished by adding the insert and folding down the tabs.
Patent GB-612986-A (GB)
Title: Improvements in rotary compressors, exhausters, pumps, and the like
IPC: F01C21/08
Filed: 1946-06-13
Abstract: 612,986. Rotary compressors. NICHOLS, T. W. June 13, 1946, No. 17688. [Class 110 (ii)] A rotary compressor, pump, or the like of the outwardly-sliding vane type has a rotor 1 combined with a shaft 4, the rotor being drilled axially, then slotted diametrically to form the vane slots and finally being plugged by a pin 5 to prevent communication between vane slots. The rotor may overhang its bearing journal 3, as shown, or may have an extended shaft which may be integral with the pin 5. Oil, under pressure, from the shaft bearings, or elsewhere, may be admitted to the slots for lubricating purposes and to force out the vanes. The rotor is designed for small machines.
Patent GB-128827-A (GB)
Title: Sewing Machines.
Inventor: FAIRWEATHER WALLACE
IPC: D05B35/06
Filed: 1918-10-31
Abstract: 128,827. Fairweather, W., (Singer Manufacturing Co.). Oct. 31, 1918. Sewing - machines cords, braids, and the like, attaching; folding devices. - In sewing. machines provided with guiding and folding de. vices for inserting r tape t between a band c and a fabric m, the fo'ding device for acting on the edge of the fabric is carried by a bracket 46 pivotally mounted on a stud 47 and adapted to be swung into or out of operative position according to whether the tape is to be inserted at the folded edge of the fabric or at some point removed from the edge. The edge folder is retained in inoperative position by a spring-pressed rod 54 carried by the bearing of the stud 47 and adapted to engage a recess in a retaining collar on the stud. The folding-guide 10 for the band is secured to the bed of the machine by screws 9, and the tape guide 12 is carried by a bar 13 pivoted to an arm 15 pivoted on the machine bed at 16. An L-shaped slot 17 at the rear end of the bar is engaged by a pin 18 on an arm 19 of a bell-crank lever, the other arm of which is adapted to be engaged by a block on the presser-lifting rod 25 when it is desired to move the tape-guide laterally for shifting the tape from a position between the needles 5, 6 to a position in which one of its edges is caught by the needle 5. A double spring 33 bearing on the bar 13 and lever arm 19 maintains them in the relative positions shown. A finger-piece 35 is provided on the bar 13 to move it laterally to the position shown in dotted lines to enable the band-guide to be threaded. The tape-tensioning finger 41 is pivoted on the bar 13 and has a downwardly extending arm with a lug 43 threaded on a stud 38 carried by the bar. A spring 42 surrounding the stud and interposed between the lug 43 and an adjustable nut provides the tensioning pressure of the finger, which is released to allow threading of the guide by using the lug 43 as a finger-piece.
Patent GB-1060247-A (GB)
Title: An improved shock absorbing suspension device
Inventor: PRICE WILSON T
IPC: F16F9/02
Filed: 1964-04-29
Abstract: 1,060,247. Pneumatic suspension devices. SECRETARY OF THE NAVY, UNITED STATES OF AMERICA. April 29, 1964, No. 17834/64. Heading F2S.  A shock absorbing suspension device comprises a telescopic system connecting suspension terminals 1, 15  in which system floating pistons 4, 6 are provided at either side of a shoulder 3. A piston operating member 5 is disposed between the pistons and is movable with the system under load. Means is also provided for applying air or other gas pressure to centralize the pistons against the shoulder and resiliently lock the elements of the telescopic system against relative displacement under shock. In the construction shown the shoulder is formed by an annular ring held within the cylinder by four snap rings 3a. The length of the telescopic unit may be varied by actuation of a double-threaded turnbuckle arrangement 23 which is locked in its adjusted position by set screws 24. In a modification the shoulder is formed integral with the cylinder and is provided with an outwardly extending dashpot vent or aperture which connects the annular space between the nut 5 on the piston-rod and the shoulder to the atmosphere (Fig. 2, not shown). The aperture may be provided with a spring-loaded one-way valve such that air can be taken in easily to a chamber between the floating pistons, the air being expelled on the approach of the pistons through a further small bleed aperture (Figs. 3, 4, 6, 7, not shown). The shoulder may be formed integral with a sleeve which is housed within the cylinder, the inside diameter of the sleeve at each side of the shoulder being such that the surface areas of the floating pistons are equal (Figs. 6, 7, not shown).
Patent GB-596001-A (GB)
Title: Anvil for punching and riveting machines
IPC: B21J15/02
Filed: 1945-07-13
Abstract: 596,001. Punching ; riveting ; flanging. ENGINEERING & RESEARCH CORPORATION. July 13, 1945, No. 17914. Convention date, March 27. [Class 83 (iv)] In a machine for punching, dimpling and riveting the rivet set is formed with a recess 5 shaped as a part spherical surface having a radius equal to the diameter of the formed head. Sheets 14 supported on a stripper 10 are punched and dimpled on descent of a head 16 the punch being held in projected position by a cam 8. A rivet shoot 20 is then positioned to feed a rivet through the dimpled hole and on descent of a rivet set 18 the rivet is inserted and the punch lowered to form part of the spherical surface of the recess 5. The head is then swaged.
Patent GB-1293621-A (GB)
Title: Photographic silver halide stabiliser bath
Inventor: KAIRIES WILHELM
IPC: G03C1/30
Filed: 1970-04-15
Abstract: 1293621 Complex sulphate AGFA-GEVAERT AG 15 April 1970 [23 April 1969] 17941/70 Heading C1A [Also in Division G2] 100 parts of zirconium sulphate containing 23% of ZrO 2 , 1 mole of silicic acid and 1 mole of sodium sulphate per mole of ZrO 2  and having a basicity of 10% are stirred with 200 parts of water and mixed with an aqueous solution of 21À5 parts of aluminium sulphate (containing 15% of Al 2 O 3 ) and 8À9 parts of a chromium (III) sulphate lye. (containing 18% of Cr 2 O 3  and having a basicity of 44%) in about 30 parts of water. The mixture is heated to 80‹ C., cooled and dried by the spray drying process. The powder obtained contains the metal oxides ZrO 2  : Al 2 O 3  : Cr 2 O 3  in the ratio 100 : 14 : 7.
Patent GB-569911-A (GB)
Title: Improvements in and relating to indicator gauges for linear dimensions
IPC: G01B3/22
Filed: 1942-12-17
Abstract: 569,911. Lineardimension gauges ; indicating apparatus. CHARLES, A., TURNER, A., and SMITH METERS, Ltd. Dec. 17, 1942, No. 17952. [Classes 106 (ii) and 106 (iv)] The measuring member 1 of a lineardimension gauge is urged by a spring 11 towards' its outer position with respect to the casing 4 and bears against a threearmed pointer-operating lever 31, 32, 22 pivoted at 29 to move this lever against the action of its spring 35. When the measuring member 1 is moved inwards, the operating lever 31, 32, 22 is caused to follow the member, and to operate the pointer, by the action of the spring 35, the tension in which is thus reduced. Sudden inward movement of the member 1 thus has no harmful effect on the pointer mechanism. The movement of the member 1 is limited by the engagement of a projection 7 on the member with fixed studs 5, rotation of the member being prevented by a strip 10 carried by the studs 5. An adjusting stud 21 projects into a slot in the member 1 to engage the arm 31 of the operating lever 31, 32, 22. The lower arm 22 of this lever has a slotted engagement with a pin 38 fixed to a crank arm 39 pivoted at 40 and having a second pin 42 adjustably secured to a pointer 23 also pivoted at 40. The pointer scale 44 has tolerance indicators 47 adjustable in a slot 46. As the member 1 moves towards the inner limit of its travel and the pointer 23 reaches the end of the scale, further movement of the pointer is prevented by engagement of the operating lever 22 with a fixed stud 64, the stud 20 in the spindle 1 then passing out of contact with the arm 31 of the operating lever. A hand lever 16 carries a pin 13 to engage the projection 7 to lift the member 1 when a workpiece is to be inserted beneath the gauge. In a modification, the operating lever 31, 32, 22 is engaged by a projection on the member 1 instead of being contacted by the stud 21. The magnification ratio between the movement of the member 1 and pointer 23 may be varied by varying the point of contact between the operating lever arm 31, Fig. 6, and the end of the stud 21 in the member 1. This is effected by moving laterally a ball 60 carried by a spring 54 fixed to the strip 10, the strip being pivoted on its upper stud 5 and engaging its lower stud 5 by means of a slotted hole, the strip being pivotally adjusted about the upper stud 5 by an eccentric screw 63 to vary the position of the ball 60.
Patent GB-581622-A (GB)
Title: An improved centrifugal lubricating oil cleaner
IPC: B01D21/26
Filed: 1944-09-20
Abstract: 581,622. Centrifugal machines. MORRIS MOTORS, Ltd., BROWN, T., and THOMAS, W. J. Sept. 20, 1944, No. 17959. [Class 23] A centrifugal oil cleaner is included in the lubricating system of an internal-combustion engine, or other machine. As shown, a bowl g is secured to a sleeve f which is rotated on a stationary spindle e by a friction disc k driven by a crank-shaft c. A spring m supports the bowl either directly, or through a ball-bearing n. Lubricant from the engine collects on a plate p and enters the bowl through an orifice r, and cleaned oil passes out of the bowl through an annular outlet i into the sump b. A pump supplies the lubricating system through a pipe s.