baber/WOPTO huggingface dataset:
Patent GB-578717-A (GB)
Title: Improvements relating to fastening devices
IPC: F16B37/08
Filed: 1944-08-10
Abstract: 578,717. Nuts. TINNERMAN PRODUCTS, Inc. Aug. 10, 1944, No. 15208. Convention date, Dec. 18, 1943. [Class 89 (i)] Sheet metal nuts have a lateral aperture 20 to enable the nut to be applied laterally to a bolt without disturbing other elements that may already be assembled. The nut is of the type having twisted spring tongues 15 to engage the threads and the tongues on the gapped side are cut away at 27 to pass the root diameter of the bolt.
Patent GB-273271-A (GB)
Title: Improvements in sheet abrasive material
IPC: B24D11/02
Filed: 1927-06-08
Abstract: 273,271. United States Sand Paper Co., (Assignees of Joseph, H.). June 26, 1926, [Convention date]. Emery and sand cloth and paper, which is fireproof and also may be waterproof, consists of a flexible backing of paper &c. either manufactured in fireproof form or rendered fireproof by means of ammonium sulphate, ammonium phosphate, triphenyl phosphate or other fireproofing material, to which the abrasive powder, which itself is fireproof, is secured by an adhesive which is not fireproof, for example, glue or waterproof adhesive containing resin, oils, &c. The backing may be fireproofed on the exposed side only, and it also may be rendered waterproof by means of a resin and oil or other composition. Reference has been directed by the Comptroller to Specification 252,165.
Patent GB-698319-A (GB)
Title: Improvements relating to tractor-trailer fluid pressure braking apparatus
IPC: B60T17/04
Filed: 1952-06-18
Abstract: 698,319. Vehicle brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. June 18, 1952 [July 31, 1951], No. 15311/52. Class 103 (i). In fluid pressure braking apparatus for tractor-trailer vehicle combinations in which the hose couplings for interconnecting the brake systems on the two vehicles comprise fixed coupling heads 14a, 15a which are carried by the tractor and contain non-return valves 23 which are normally kept open by the engage-  ment of a rod 31 carried by the detachable coupling heads 14b, 15b secured to the ends of the flexible hoses 16, 17 from the trailer vehicle, a chain or other flexible member 21, 22 is connected between an anchorage on the trailer vehicle frame and each of the detachable coupling heads. This arrangement ensures that even if the flexible hoses 16 or 17 should be broken in the middle, the detachable coupling heads will be separated from the fixed heads and the non-return valves 23 will close and prevent the exhaustion of the air reservoir on the tractor.
Patent GB-668067-A (GB)
Title: Improvements in or relating to periodically-operating electrical switching apparatus
Inventor: GLOVER DONALD WILLIAM
IPC: H01H3/00
Filed: 1949-06-07
Abstract: 668,067. Interrupters; momentary contact switches. POSTMASTER GENERAL. June 7, 1949. No. 15360/48. Class 38 (v). A switching device suitable for intermittently energizing a bridge circuit for gas detection as disclosed in Specification 668,066, [Group III], comprises a normally-open spring- contact set 24, 25 mounted at 21 on a channelsection lever 11 pivoted at 7. The lever 11 carries a cam follower 15 vertically-adjustable thereon by a knurled screw 16 and urged into engagement with a cam 2 by a spring 22. The contact-spring 25 carries an insulating extension 12 and is stressed so that the extension abuts an adjusting screw 9 in a post 8 mounted on a further lever 6 pivoted at 7, and thereby causes the turned-in end 5 of the lever 6, constituting a further cam-follower, to also engage the cam 2. The cam follower 15 is set slightly above the follower 5 so that on rotation of the cam the follower 15 drops first off the cam slip 28 under the action of the spring 22 and the contact 24 moves to engage the contact 25 which is held stationary by the extension 12. After a short interval the follower 5 falls off the step 28 permitting the contact 25 to move by its own resilience and re-open the circuit. During continued rotation of the cam the contacts remain separated and the cam surface is such that the lever 11 is moved to gradually restress the spring 22. The cam is driven through worm gearing 3, 4 by a lowpowered, impulse-type motor 1 consuming about 4 milliamps at 4¢ vlts and controls the switch so that the contacts 24, 25 are closed for half a second at intervals of five minutes.
Patent GB-472885-A (GB)
Title: Improvements in apparatus for coating by dipping
IPC: B05C3/09
Filed: 1936-07-28
Abstract: <PICT:0472885/III/1> In apparatus for partially coating objects by dipping, the dipping mechanism includes lost-motion provisions for providing a dwell at the completion of the dipping stroke, and means for retarding the withdrawal of the objects at the initiation of that movement.  The Figure shows such an apparatus, for partially coating plates B with a liquid 2, comprising a lever 25, overbalanced by a weight 27 and connected with a slidable head 28.  Limit stops 32 and 33 on the rod 30 contact with the bracket 31 on the head 28, and stops 35, 36 on the arm 34 limit the sliding movement of the head 28. A weighted inverted bell 41, arranged in a tank 42 of liquid, is provided with an inwardly opening air valve 45 and an adjustable air-escape valve 46, and is attached to the lever 25 by a flexible connection 43 and a turnbuckle 44.  The coating liquid 2 in the receptacle 1 may be restored to substantially constant level prior to each dipping operation by any known means, or in the manner described in Specification 472,865.
Patent GB-1003084-A (GB)
Title: Improvements in or relating to the optical brightening of polymeric materials
IPC: D06L4/60
Filed: 1962-01-19
Abstract: Synthetic polymeric materials, e.g. polyamides, polyesters and polyurethanes, are brightened by incorporating therein, if desired during the course of their production, a compound having the formula <FORM:1003084/C3/1> or <FORM:1003084/C3/2> in which R is an alkoxy group containing 1-5 carbon atoms and m is 1, 2, 3 or 4, the naphthalene nucleus being optionally substituted with one or more other radicals.  Specified brightening agents are 4-methoxy napthalic acid and its anhydride and 4-ethoxy naphthalic acid and its anhydride.  The polymeric materials may be used for the production of fibres and films.ALSO:Textile materials, e.g. fibres, yarns and threads made from cotton, kapok, linen, sisal, jute, wool, mohair, cashmere, asbestos, rock fibres, viscose rayon, cellulose acetate, glass, polyamides, polyesters, polyurethanes, polyvinyl chloride, polyvinylidene chloride, polyacrylanitrile or polyvinyl alcohol, are brightened by treating them with a compound having the formula <FORM:1003084/D1-D2/1> in which R is an alkoxy group containing 1-5 carbon atoms and m is 1, 2, 3 or 4, the naphthalene nucleus being optionally substituted with one or more other radicals.  Specified brightening agents are 4-methoxy naphthalic acid and its anhydride and 4-ethoxy naphthalic acid and its anhydride.  The brightening agents may be applied to the textile materials as an aqueous dispersion containing a suitable dispersing agent, e.g. a higher alcohol sulphanate, or as an organic solvent solution.
Patent GB-680116-A (GB)
Title: Improvements in and relating to solid-fuel fire-grates
IPC: F23L1/00
Filed: 1949-06-10
Abstract: 680,116. Dampers. SKATES, L. June 12,1950 [June 10, 1949], No. 15487/49. Class 126 A device for regulating the draught opening to the ash space below the fire bars of the usual type of domestic fire-grate comprises a damper flap f which is adapted to be sunk flush in a recess d in the front surface a of a body portion and to bear against lateral stops e behind the said front surface, the flap being provided along its top with lugs g set transversely of and capable of engaging behind the top edge of the recess so that the flap can be swung outwardly from its flush position. Curved feet i are provided to retain the flap in its outwardly-swung position.
Patent GB-922243-A (GB)
Title: Improvements in or relating to sewing machines of the double needle type
IPC: D05B55/16
Filed: 1960-05-03
Abstract: 922,243. Sewing-machines. MECCHI S.p.A. May 3, 1960 [Jan. 25, 1959], No. 15487/60. Class 112. A sewing-machine has means for engaging and driving the needle bars which may selectively release one bar, stopping means being provided to engage the said one bar and hold it in a predetermined raised position. The two needle bars 1, 1<SP>1</SP> are each of semicircular cross-section and are reciprocable within the sleeves 2, 3 rigidly mounted on a support 4. The needle bars are each provided (see Fig. 4) with grooves 16, 16<SP>1</SP>, 17, 17<SP>1</SP> leading to transverse bearing surfaces 14, 14<SP>1</SP>, 15, 151 respectively. A control rod 6 disposed parallel to the needle bars is slidable in the lower sleeves 8, 9 and an upper sleeve 7 mounted on the housing 4. The control rod is reciprocated by a connecting member 5 secured to the lower end of the rod and driven from the main shaft of the sewing-machine. The driving connection between the rod 6 and each of the needle bars is provided by the engagement (see Figs. 7 and 10) of a driving member 12, mounted on the bar with the transverse surface 14 and/or 14<SP>1</SP> on the appropriate needle bar, the member 12 having a protrusion which may engage either or both of the bars according to the angular position at which the rod 6 is set. A stopping member 13 splined to the rod 6 is disposed between sleeves 8, 9 and has protruding tips 36, 36<SP>1</SP> one of which, according to the angular position of the rod, will engage the surface 15 in whichever needle bar is disengaged by the driving member 12 so as to hold that bar in a raised position. The rod is selectively rotatable by a handle 31 (see Fig. 1) connected to a quadrant engaging a toothed sector 7 (see Fig. 7) splined on to the rod 6. A stop 32 limits the angular movement of the rod. A resilient member 28, disposed between the handle 31 and the sector, permits the handle 31 to be moved when the bearing surfaces 14, 15 are not aligned with the driving and stop members. Disengagement or engagement of the appropriate bar is then achieved when the needle bar is next in a position to bring the appropriate surface into alignment with the corresponding member. The handle 31 is provided with a centring spring 40. The housing 4 is pivoted at 10 so that the work may be fed by movement of the needles, sufficient clearance being allowed between the teeth on the quadrant and on the sector 7 to permit oscillation of the housing. The needle bars may have cross sections other than those mentioned, and may slide inside independent sleeves.
Patent GB-689290-A (GB)
Title: Improvements relating to high-frequency electro-magnetic wave devices
IPC: H01J25/38
Filed: 1951-06-29
Abstract: 689,290. Travelling-wave tubes. LELAND STANFORD JUNIOR UNIVERSITY, BOARD OF TRUSTEES OF. June 29,1951 [June 30,1950], No. 15492/51. Class 39(i) [Also in Group XL(b)] A device for guiding electromagnetic waves consists of a helix which passes into a flat spiral, at least at one of its ends. In the travelling-wave tube shown the two helices 5 and 7 have spirals 21, 23, 31 and 31<SP>1</SP> at their ends. An insulating disc 25 having a carbon coating is placed between spirals 21 and 23, the coating having an aperture at the centre of each side of the disc. Wave energy is thus absorbed at the latter and the signal is carried across the gap solely by the electron stream. Input and output coaxial lines 29 and 37 are provided, their inner conductors being connected to spirals 31 and 31<SP>1</SP>. The tube is completed by a cathode 1. accelerating electrode 3, and collecting electrode 9. Modified tubes are described in which the electron stream is controlled by a single grid, or by passing it through grids in the wall of a cavity resonator. The latter contains a coupling loop connected to an input coaxial line.
Patent GB-440558-A (GB)
Title: Improvements in the preparation of blood serum for diagnostic purposes
IPC: G01N33/50
Filed: 1934-05-24
Abstract: Substances which may favour the growth of cells, or may break up cells, and are used in cancer diagnosis are prepared from blood serum by heating to a temperature above 80 DEG  C., preferably between 80 and 110 DEG  C., and filtering off the precipitated inert substances. Albumen precipitants or adsorbents such as aluminium oxide sol, silicic acid sol, active carbon, bleaching earth or talc may be added before, during, or after the heating.  The hydrogen ion concentration may be adjusted to pH 6,5 to 7,5 by addition of a phosphate buffer solution.  Reference is made to a known process for inactivating the complement in blood serum by heating to 55 DEG  C.
Patent GB-1180783-A (GB)
Title: A Bogey for Low-Built Railway Load Carriers
Inventor: LANDEBORG LARS
IPC: B61D3/18
Filed: 1967-04-05
Abstract: 1,180,783. Rail vehicle bogies. L. LANDEBORG, S. T. HENRIKSSON, and R. L. MUOTKA. 5 April, 1967 [5 April, 1966], No. 15530/67. Heading B7L. [Also in Division F2] A bogie for a low-loader railway truck comprises a pair of wheel units 1 each consisting of a pair of longitudinal beams 5 connected by a girder 4, the beams of each unit having rotatably mounted therein wheels 6 and being inwardly extended at 14 in order to be resiliently pivoted at the sides of the bogie, about transverse horizontal pivot pins 15, to the beams of the other said unit, there being supported on the units 1, by rubber springs 17, a frame girder unit 2, 3, the springs 17 being inclined such that the weight of the girder unit and load carried thereon is transmitted to the units 1 to create a restoring force which returns the extensions 14 to their rest position after a pivoting movement therebetween. The springs 17 are connected between opposing oblique surfaces on the units 1 and girder unit member 2. Two braking systems are used wherein disc brake pads are made to contact the inner and outer faces of the wheels using brake cylinders 11 and 19. Adjacent ends of low-loaders 19 are supported on the bogies via rubber springs 20, and are free to articulate about a pin 22 resiliently mounted in frame member 3. .
Patent GB-800321-A (GB)
Title: Method of and apparatus for casting metals
IPC: B22D11/11
Filed: 1955-05-31
Abstract: 800,321. Continuous casting processes. BABCOCK & WILCOX CO. May 31, 1955 [July 26, 1954], No. 15582/55. Class 83 (1). In a method of continuously casting ferrous metal, there is delivered to the mould, simultaneously with the molten metal, a solid, non- metallic carbon-containing material, substantially free of moisture and hydrogen and reactive with oxygen at the temperature within the mould, in an amount sufficient at least to consume the free oxygen within the mould. The additive may be charcoal or powdered low ash coal. The mould 10 is fed from a tundish 11, carried on a wheeled platform 12 movable on rails 14 secured to the mould supporting frame. The platform is vertically adjustable by jacks 17 at each corner operated through a hand crank 18. The platform has an opening 26 positioned above the mould, and above this opening and resting on the platform is a table 27 which is movable in directions parallel to the rails 14 and transversely thereof by screws 32, 41, chain driven from motors 28, 37. The tundish is supported in a frame 55 supported on the table 27 on a shaft 50 at one end and by arms 57 resting on a cam-shaft 60 at the other so that the dish may be tilted about the shaft 50 by a motor 62 on the table 27. Seals 66, 68, 87, prevent leakage of air into the mould cavity while permitting the movements of the platform 12, table 27 and the tilting of the tundish. A screw feeder 91 including a hopper 94 terminates at a point in substantial vertical alignment with the mould to deliver the additives thereto. Specification 656,386 is referred to.
Patent GB-290455-A (GB)
Title: Improvements in machines for assembling the links of gear and like chains
IPC: B21L9/00
Filed: 1927-06-11
Abstract: 290,455. Seuthe, A. June 11, 1927. Chains.-The parts of block chains are assembled, ready for the heading of the rivets in a separate machine, by automatically feeding the chain blocks, links and rivets to a channel between sets of dies which first move towards each other to assemble one part of the chain and then move longitudinally to feed the assembled part along the chain channel. The chain blocks are initially placed in a hopper 26 where they are stirred by driven arms 28, Fig. 3, and delivered by a rotary ring 29 to a chute 31 whence they descend to a chain channel 25. A slide 56 reciprocating transversely of the channel has fingers which feed chain links from hoppers into position under and above the chain blocks. Rivets in a magazine are stirred and fed by rotary slotted rings to chutes 48, 50 issuing above nippers which seize the rivets and carry them in a vertical position into alignment with the holes in the chain block and link opposite the slide 56. Dies 18-24 are mounted in reciprocating heads 10, 11 above. and below the chain channel respectively, the heads themselves being mounted on a slide 7 adapted to be reciprocated longitudinally of the machine by linkage from a cam 6. The die heads on being advanced towards each other cause the die 18 to locate the last block arriving from the hopper, the dies 19, 22 to locate two adjacent blocks and their link 35, the dies 20 to force the aligned rivets 42 through a link 35 till the tops of the rivets are just below the tops of the blocks and the dies 24 to return the rivets through the top link 36. The slide, 7 is then moved longitudinally to feed the assembled chain along the chain channel after which the dies are opened and the slide 7 returned alone. The chain is locked in position at each position of rest by a toothed wheel 68, Fig. 2, coacting with the assembled chain and locked by a pawl 69 controlled through linkage by a cam 74. A pinion 76 on the spindle of the wheel 68 drives a counter 77 which may automatically interrupt the assembling of the chain after a predetermined length, by means of a stop 78 which actuates a cam rod 83 thereby causing a pin to lock the rivet about to issue from the shoot 50. The machine is started by a manually controlled clutch.
Patent GB-529787-A (GB)
Title: Improvements in or relating to weft thread feeding devices for looms of the nipper shuttle type
IPC: D03D47/00
Filed: 1939-05-26
Abstract: 529,787. Shuttleless looms. TEFAG TEXTIL-FINANZ AKT.-GES. May 26, 1939, No. 15691. Convention date, July 1, 1938. [Class 142 (ii)] Weft threads 12 from a number of bobbins &c. 68 pass through brake devices 75, over suction ducts 77 and through holes 41 in a rod 42 in the line of picking 90 to a series of feeders 14. These feeders are pivoted on shafts 17 arranged around the picking axis 90 and in a plane normal to such axis. A spring plunger 34 tends to hold each feeder in its inoperative position shown in dotted lines or in its operative position in which it presents its weft thread 12 to the nipper shuttle 3. The feeder is now correctly positioned by the preferably conical parts 15, 15b and its jaws 13 opened to release the thread by the fork 91. After picking the thread is cut by shears 55, and its end gripped by jaws 6 which return to the position shown in full lines in Fig. 1 when the thread is again gripped by the jaws 13 of the feeder. Each feeder 14 is connected to a dashpot 20 with a lever 22 the other end of which is connected to a lifting wire 26. The wires 26, lever 22, dashpots 20, &c. are concentrically arranged round the axis 90. Each wire can be lifted by a jacquard controlled finger 36 and carries upper and lower projections 37, 38 to engage with knife blocks 39, 40 which are slid on the bar 42 by levers 47, 48 and cams 51, 52. The cam 51 moves the feelers into operative position and holds them there for some time while the cam 52 moves them to inoperative position and holds them there for a time.
Patent GB-312178-A (GB)
IPC: A63B37/00
Filed: 1929-05-21
Abstract: 312,178. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). May 21, 1928, [Convention date]. Handles, of spherical or ellipsoidal shape, are,. according to the Specification as open to inspection under Sect. 91 (3) (a), made by saturating fibrous material with a binding medium, for instance a phenol-aldehyde resin, and compressing it to the required shape with simultaneous or subsequent application of heat. The body may comprise superimposed layers of woven fibres orpaper strips preferably disposed to cross one another in all directions. The waste material from the manufacture of fibrous gear wheels and friction discs may be utilized. This subjectmatter does not appear in the Specification as accepted.
Patent GB-479730-A (GB)
Title: Improvements in and relating to baths
IPC: A47K3/04
Filed: 1937-06-07
Abstract: 479,730. Baths. BAYERISCHE BERG-, HUTTEN-, UND SALZWERKE AKT.-GES. June 7, 1937, No. 15760. Convention date, June 9, 1936. [Class 26] The rim of a built-in bath is provided with a downwardlyextending strip overlapping the panel, which strip is of less thickness for the whole or pari of its length than the remaining walls of the bath. The reduction in thickness may be pro vided for by a step 7 which accommodates the panel; the latter may comprise tiles 5 laid on a wall 12 supported by bars or by members 13, 14. In other forms, the extension may be of wedge-shaped crosssection and if not vertical, the space between it and the panel may be grouted.
Patent GB-613474-A (GB)
Title: Improvements in or relating to fire hydrant valves
IPC: F16K15/18
Filed: 1946-05-24
Abstract: 613,474. Fire hydrant valves. MUNDELL, F. May 24, 1946, No. 15766. [Class 135] A screw-down hydrant valve comprises a sleeve nut f engaging an externally-threaded and non-rotary valve spindle g which is provided with a co-axial bore to take the stem h projecting from the valve closure member i, the arrangement being such that rotation of the sleeve nut positions the spindle relative to the member i to limit the opening movement of the latter when it is lifted by the hydraulic pressure in the main. Member i is provided with a seating washer k secured in position by a collar and lock-nut j<1>, and it has a slight rolling connection h<1> with the stem h. Rotation of spindle g is prevented by arms g<1> thereon which engage ribs (not shown) in the wall of the valve casing. Nut f is provided with a squared portion f<1> by which it can be rotated. The outlet from the valve is provided with a hose connection d.