baber/WOPTO huggingface dataset:
Patent GB-523917-A (GB)
Title: Improvements in or relating to brakes for use with tractors and trailers
IPC: B60T7/20
Filed: 1939-01-17
Abstract: 523,917. Vehicle brakes. KNORR-BREMSE AKT.-GES. Jan. 17, 1939, No. 1622. Convention date, Jan. 19, 1938. [Class 103 (i)] Relates to fluid-pressure systems for the simultaneous application of the brakes on tractor and trailer vehicles, of the kind in which the braking effort on the trailer is automatically controlled by the tendency of the latter to overrun or lag behind the tractor so that the decelerations of the two vehicles are equalized. According to the invention, the controlling device or slide for the trailer brake is coupled to the brake pedal lever of the tractor so that when the latter lever is but slightly depressed only the trailer is braked, whilst a larger depression results in both vehicles being braked, and also, when the brake pedal lever is not operated at all, over-running by the trailer has no effect upon the brake system. As shown, the application of the tractor brakes is effected by means of a foot pedal 21 or hand-lever 19, while the trailer brakes are normally held in a released condition, Fig. 1, by admitting compressed air from a reservoir 34 on the tractor to the trailer brake line 35 via passages 30, 31 in a valve housing 1. The valve housing 1 also has an additional port 32 opening. to atmosphere which may be placed in communication with the passage 31 for applying the trailer brakes, or may communicate with a further passage 33 controlled by a valve 38 which closes at a definite reduction in the pressure in the brake line 35 so as to effect a partial application of the trailer brakes. The connections between the passages 30 ... 33 are controlled by a lower slide 17 having passages 23 ... 27, and an upper slide 10, which has an elongated passage 12, and the position of which depends on the position of the trailer relative to the tractor. Springs 22, 13 tend to maintain the slides 17, 10 in the normal or rearward position, Fig. 1. If the brake pedal 21 is operated, the tractor brakes are applied, while the trailer brakes after a partial application, are .released (Fig. 3, not shown), but, as the trailer in this condition tends to overrun the tractor, the brake line 35 is vented to atmosphere via passages 26, 12, 24 as shown in Fig. 4, to a degree determined by the overrun, whereby the trailer is braked to an extent corresponding with the deceleration of the tractor. Movement of the upper slide 10 can produce no application of the brakes, while the slide 17 is in its normal position, Fig. 1, i.e., when the tractor brakes are released. When the hand-lever 19 is operated, both slides 17, 10 are moved to the braking position, Fig. 4, with the springs 22, 13 compressed, and, owing to the provision of a loose connection between the parts 9, 5 of the drawbar, lag of the trailer produces no relief of the braking effort thereon.
Patent GB-1186002-A (GB)
Title: Fluid-Flow COntrol Valve
Inventor: PAWLING FRANK
IPC: F16K11/044
Filed: 1966-01-13
Abstract: 1,186,002. Valves. DOWTY MINING EQUIPMENT Ltd. 28 Dec., 1966 [13 Jan., 1966], No. 1705/66. Heading F2V. A valve comprises three interconnected chambers 2, 4 and 6 of which the latter two have outlet ports 5 and 7 respectively and the first has an inlet port 3 and furthermore houses within it an axially movable valve closure member 9 carrying a further closure member 19. Initially, as a result of biasing due to a spring 23, the closure members take up the position shown thereby allowing communication between inlet 3 and outlet 5 and chamber 6 and port 17. Fluid supplied to port 26 raises piston 24 which in turn raises member 19 to its seat 21 with further motion of the piston, moving in unison, both members 9 and 19 until the former is brought against its seat 14.
Patent GB-1444932-A (GB)
Title: Polyoxyalkylated glyceride reaction products
IPC: C08L67/00
Filed: 1973-01-12
Abstract: 1444932 Modified polyalkoxylated glycerides IMPERIAL CHEMICAL INDUSTRIES Ltd 19 Dec 1973 [12 Jan 1973] 1733/73 Heading C3R Products useful as antistatic additives to melt spun fibres are reaction products of (A) a compound of formula wherein x y and z each are integers of 1-22; R, R<SP>1</SP> and R<SP>11</SP> are C 1-23  alkyl groups; A, B, D, E, F, G, J, K and L are selected from -(CHM)- and -(CH:CH)- where M is or H, P and Q being Me or H and v an integer; provided that at least one of A to L is other than -(CH:CH)- at least one M is other than H and the sum of v is 10-200; and (B) an ester of oxalic or malonic acid. The molar ratio of B : A is at least 2 : 1. (A) may be a polyalkoxylated castor oil or hydrogenated castor oil. (B) may be diethyl oxalate or malonate. Reaction may take place at 170-250‹ C. The product may have a viscosity of >10 poises at 100‹ C. The product may be included in a melt spun polymer, e.g. nylon 6 or 6:6 or polyethylene terephthalate at 1-20% by wt. of the polymer. Specification 1,139,646 is referred to.
Patent GB-253452-A (GB)
Title: An improved device for use in starting internal combustion engines
IPC: F02N99/00
Filed: 1926-01-21
Abstract: 253,452. Fornaca, G. Jan. 21, 1926. Starting. - A distributing-valve for supplying compressed gaseous mixture to the engine cylinders at starting comprises a body 1, having openings 19 leading one to each cylinder and arranged on two opposite semi-circles of different diameters, and a rotary member 14 having two pairs of openings 17, 17<1>, 18, 18' situated on two diameters inclined to each other and communicating with a common inlet 3 for gaseous mixture. As shown, the member 14 and a tubular-stemmed valve 11 are held on their seats by a spring 16 and are driven by gearing 8, 9 enclosed in a casing 7, the members 9, 11, 14 being connected by interengaging splines. The inlet 3 is connected to a carburettor to which compressed air is supplied.
Patent GB-201131-A (GB)
Title: The recovery of calcium oxalate and other materials from trees
IPC: C07C51/48
Filed: 1923-01-19
Abstract: Calcium oxalate occurring naturally in the bark of trees such as Terminalia arjuna is recovered therefrom by crushing the bark and concentrating the crystals of oxalate by any convenient physical process.  Preferably the fibrous portions of the ground bark are removed, and tannins and other soluble matters extracted, before the final separation of the oxalate.  The oxalate may be recovered from the bark residue by air-current separation, or peferably by wet methods involving the use of centrifugal separators, jigs, vanners, and the like such as are employed in the concentration or ores. Specifications 110,837 and 178,138, [Class 81 (i), Disinfecting &c.], are referred to.
Patent GB-739922-A (GB)
Title: Improvements in lasts
Inventor: TUSA JOHN
IPC: A43D3/02
Filed: 1954-01-21
Abstract: 739,922. Lasts. BRITISH BATA SHOE CO., Ltd. Jan. 21, 1954, No. 1784/54. Addition to 650,982. Class 17(1). A last according to the parent Specification is modified in that the resilient tension link 25 is journaled at one end on an outer pin 19 and at the other on the outer end of the single flat rigid link 24; the links 24, 25 are coplanar with link 24 nesting in link 25, and the motion of the heel 16 relative to the forepart 8 is lengthwise of the upper, as shown at 17.
Patent GB-1482232-A (GB)
Title: Wall fittings
IPC: A47F5/08
Filed: 1975-09-02
Abstract: 1482232 Brackets PRESTIGE GROUP Ltd 2 Sept 1975 [15 Jan 1975] 1842/75 Heading A4B A wall mounted assembly, for supporting shelves, soap dishes, toothbrush racks, hooks or other fittings, comprises a panel 10 adapted for wall mounting and provided with at least one longitudinal slot 13 with a horizontally elongate mouth in the plane of its front surface 11, an attachment element 30 provided with a hook 36 which engages in the slot 13, and a projecting wall fitting, e.g. toothbrush holder 50, which is detachably fitted over the attachment element 30. The attachment element 30 has side walls 40 which are downwardly divergent and which are either stepped or chamferred, as shown, and which mate with the side walls 55 of a recess 54 in the wall fitting 50. The panel 10 may be fitted over a backing plate 1 with screw holes 9 for wall securement or the panel 10 may have end fittings which are securable to a wall. The end fittings may have bosses to engage in the ends of a plurality of panels disposed one above the other.
Patent GB-1283865-A (GB)
Title: Insert for heat exchanger tubes
IPC: F28F1/40
Filed: 1970-01-14
Abstract: 1283865 Tubular heat exchange elements M BEHR [trading as SUDDEUTSCHE KUHLERFABRIK JULIUS FR BEHR] 14 Jan 1970 [14 Jan 1969] 1870/70 Heading F4S A heat exchanger tube 1 contains an insert comprising strip sections 2, 3, 4 and 5, each of which has inwardly directed surfaces 6 and 7 and curved circumferentially extending surfaces 8<SP>1</SP> and 9<SP>1</SP>. Each of the longer curved surfaces 8<SP>1</SP> has a bent-over edge 10<SP>1</SP> which is subdivided into sections at intervals in the longitudinal direction. A bearing surface 11 is provided for the shorter curved surface 911 of an overlapping adjacent strip section 3, to abut against. Gilllike outwardly bent portions 12<SP>1</SP>, 12<SP>11</SP> &c. are provided on the surfaces 6 and 7. The strip sections 2-5 can either be freely inserted into, or soldered to, the tube 1. As shown the surfaces 6 and 7 of each section make an acute angle with each other. In an alternative form (Fig. 2, not shown) the angle between the inwardly directed surfaces (26, 27) is 90 degrees so that with four sections inside the tube a cruciform open cross-section is defined into which a centre rod (33) may be located.
Patent GB-851041-A (GB)
Title: Improvements in or relating to electron discharge devices and arrangements embodyingsuch devices
Inventor: GIBBONS DAVID JOHN
IPC: H01J31/48
Filed: 1956-01-20
Abstract: 851,041. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 18, 1957 [Jan. 20, 1956], No. 1929/56. Class 39(1). In a discharge device, a target electrode includes a layer 6 of material exhibiting the property of bombardment induced conductivity and photo-electrically emissive conducting elements 7, which become charged by the induced conductivity in dependence on the intensity of bombarding electrons and which can be scanned by a light spot through a mesh electrode 8 which limits the equilibrium potential attained by elements 7 during scanning. In the television pick-up tube shown bombarding electrons from photo-cathode 2 are focused onto an electron-permeable, light opaque conducting film 5 of the target by a coil 12 surrounded by a high permeability mu-metal screen 12a. Electrons released from elements 7 by the scanning light spot from tube 10 are directed into an electron multiplier 13. In an alternative device for use in television standards conversion the photo-electric cathode is replaced by an electron gun producing an electron beam modulated by received signals and scanned over the target.
Patent GB-1042997-A (GB)
Title: Filter unit having reserve filter element
IPC: B01D35/143
Filed: 1964-01-16
Abstract: 1,042,997. Valves. PALL CORPORATION. Jan. 16, 1964 [Feb. 19, 1963], No. 1955/64. Heading F2V. [Also in Division B1] A spring washer 40 of frusto-conical form (dotted lines) normally closes an annular aperture against fluid flow, but at a predetermined pressure snaps open (full lines) to permit flow, and thereafter may remain open or may close when pressure falls, the " opening " being achieved by departure from the initial frustoconical form. The washer is made of spring steel, stainless steel, nickel-chromium alloy, polytetrafluoroethylene or polyoxymethylene.
Patent GB-1285434-A (GB)
Title: Electrostatic charging apparatus
Inventor: BAILEY WILLIAM JAMES JR
IPC: G03G15/02
Filed: 1970-01-15
Abstract: 1285434 Electrostatic generators EASTMAN KODAK CO 15 Jan 1970 [15 Jan 1969] 1956/70 Heading H2A [Also in Division G1] Apparatus for determining the tendency of dissimilar materials to become electrostatically charged e.g. the tendency of photographic film and plastics material to spark, comprises a pair of coaxial rams 10, 12 either carrying the dissimilar materials respectively or, as shown, both carrying plastics material and having a piece of film 36 supported between them. The rams are operated pneumatically, air being admitted selectively to cylinders 14, 16 by valves controlled by a timer 34 such that ram 10 is first moved into contact with film 36 and then ram 12 is caused to strike the opposite face of the film. The impact causes ram 10 to recoil producing opposite charges on the plastics material carried thereby and on the film. Both rams are then withdrawn, the ram 12 also receiving a charge opposite to that on the film. Repetition of the cycle produces an incremental increase in charge at each impact and cycling is continued until sparking occurs. The charges built up on the rams are applied inductively through switches 60, 62, a summing element 64 and integrator 66 to a recorder 70. Before carrying out a repeat measurement, radiation devices 80 are swung between the rams and the film to ionize the air and discharge the apparatus. The rams alternatively may be operated by solenoids or may be in the form of pendulums. It is stated that the apparatus may be used for charging electrophotographic materials.
Patent GB-1418101-A (GB)
Title: Polychloroprene compositions
IPC: C08K5/36
Filed: 1973-01-15
Abstract: 1418101 Modified polychloroprene compositions BP CHEMICALS INTERNATIONAL Ltd 12 Dec 1973 [15 Jan 1973] 1987/73 Heading C3P A dialkyl polysulphide is incorporated into a sulphur/xanthogen modified polychloroprene composition in order to improve the flex-crack resistance thereof. The polysulphide may be added to the latex immediately after its preparation, or may be dry-blended with the isolated rubber. The use of a ditertiary nonyl- and a ditertiary octyl polysulphide is exemplified.
Patent GB-581818-A (GB)
Title: Improvements in or relating to invalids' chairs or similar devices
IPC: A61G5/00
Filed: 1944-02-05
Abstract: 581,818. Invalids' chair carriages. SILL, G. A. Feb. 5, 1944, No. 2153. [Class 52 (ii)] [Also in Group XXXII] An invalids' chair is rigidly mounted on a tiltable carriage having front wheels and a resiliently mounted back wheel, and a foot rest is rigidly connected to the carriage for normal contact with the floor but is raised from the floor when the invalid sits in the chair. The back is adjustable and the arms are hinged to swing down to allow the invalid to slide sideways from the chair on to a bed. The two front driving wheels 20, Fig. 2, are mounted on an axle 25 to which is fixed a footrest 18 and bracket 24 adapted to carry the support 30 of a resiliently mounted back wheel 34 and the chair support 22. A seat bottom 10 is rigidly mounted on the support 22 and the seat back 40 is hinged at 42 to the seat and can be adjusted for inclination by a screwed rod 50. The arm rests 16, Figs. 4, 5, are connected to the seat by a slot 56 and bolt 58 and are clamped in position by a screw 62, the clamp being released and the arm drawn upwards until the bolt 58 reaches the end of the slot before turning the arm clockwise into the down position shown in dotted line in Fig. 4.
Patent GB-566498-A (GB)
Title: Dehydrated potato product and method of making same
IPC: A23L19/15
Filed: 1943-02-10
Abstract: Dry mashed potato powder, which is reconstituted into mashed potato when mixed with hot water, is prepared by cooking peeled potatoes by immersion in boiling water or by steaming, mashing the cooked potatoes as by pressing them through a perforated plate or wire grid, mixing the mashed potato with previously-dried mashed potato powder to form a friable mass and drying the mixture in a pneumatic drier. The mashed potato is preferably conditioned by cooling to approximately 15-25 DEG  C. before the mixing.  The dry potato powder required at starting may be produced by extensive conditioning of a batch of mashed potato; thereafter the required amount of the finished product is returned to the mixer.  8-15 parts of the powder may be mixed with 10 parts of the mash.  The drier employed is preferably as described in Specification 546,088, [Group XIII], particularly that provided with a two-stage classifier as shown in Fig. 3, heated air being employed as the drying medium.
Patent GB-685592-A (GB)
Title: Self-locking combined stop and stay for doors and other hinged objects
IPC: E05C17/22
Filed: 1951-01-30
Abstract: 685,592. Stays for hinged articles. HACKER, A. W. June 29, 1951. [Jan. 30, 19S1], No. 2263/51. Class 65(i) A device for holding a door or the like in a single pre-determined open position comprises a stay bar 11 attached at one end to the door and disposed slidably in a pivoted box guide 5 attached to the fixed frame, the box guide having mounted thereon a spring- biassed lever 9 carrying a bolt which enters a single hole in the stay bar when the door is open. A spring 7, mounted on the stay bar, is then compressed between the box guide and an abutment 8 on the stay bar.
Patent GB-553391-A (GB)
Title: Improvements in and relating to magnet systems for telephone receivers and like instruments
IPC: H04R9/02
Filed: 1942-02-20
Abstract: 553,391. Telephone instruments. DENT, R. H., and WOLFF, J. Feb. 20, 1942. Nos. 2267/42 and 2883/43. [Class 40 (iv)] A magnet system for an acoustic receiver comprises two permanent magnets 9, 10 arranged between the ends of soft-iron plates 1, 2, a pole-piece 6 secured to one plate and extending with clearance into an opening 7 in the other, and a coil 11 located between the plates 1 and 2 and the magnets and surrounding the pole-piece. One magnet may be of cobalt and the other of alnico steel. The diaphragm 18 may be placed over a damping-plate 16 having a central opening 17 to receive a flanged portion 8 of the plate 1. Acoustic leakage from the space between the diaphragm and the plate is provided by a hole 21 in the latter, which is covered by a layer of silk between wire gauze layers.
Patent GB-1043051-A (GB)
Title: Improvements in pulsating combustion systems
IPC: F23C15/00
Filed: 1964-01-20
Abstract: 1,043,051. Oscillating-column combustion chambers. JUNKERS & Co. G.m.b.H. Jan. 20, 1964 [Jan. 21, 1963], No. 2342/64. Heading F1L. A combustion system adapted to operate with pulsating combustion comprises at least one combustion chamber, at least one outlet aperture for waste gas and at least one resonance tube which is at least partly closed at its end remote from the combustion chamber and is of a length corresponding approximately to half the wavelength or an integral multiple thereof at which the system operates, and the total effective cross-sectional area of flow of the outlet aperture or apertures is smaller than the crosssectional area of the resonance tube. A resonance tube 11, which is preferably completely closed at one end by a cover 12, is connected at the other end to a combustion chamber 10, the length of the tube 11 corresponding approximately to half the wavelength at which the system operates, or an integral multiple of half the wavelength. The cross-section of the tube 11 may be of any shape, e.g., circular, square, oval or rectangular. The waste gas is discharged through an aperture 18 at the end of the combustion chamber 10 and further apertures 15, 16, 17, each aperture discharging through a pipe which may have a cross-sectional area equal to or greater than that of the aperture and may be provided with a silencer. As shown, the aperture 16 is preferably located at the antinode. An aperture may be provided in the end cover 12. One or two only of these apertures may be provided. In all cases, the sum total effective cross-sectional area of flow of the aperture or apertures is less than the crosssectional area of the resonance tube 11. The actual cross-sectional area of an aperture may be greater than its effective cross-sectional area of flow is, say, it is in the form of a Borda's mouthpiece or if it discharges into a volute housing. The tube 11 may be offset along its length, curved, bent at an angle or even bent through 180 degrees at the middle of its length. Also, it may be subdivided into several tubes over the whole or a portion of its length.
Patent GB-1033910-A (GB)
Title: Pharmaceutical compositions containing quinazoline derivatives
IPC: C07C49/84
Filed: 1964-01-21
Abstract: Substituted quinazolines of the general formula:- <FORM:1033910/C2/1> wherein R2 and R4 are the same or different and are hydrogen or C1 to C5 alkyl or alkenyl which together have a total of no more than 6 carbon atoms, and R6 and R7 are methyl, ethyl, or together with the oxygen links comprise a methylenedioxy group, are prepared by the following synthesis in which all symbols have the above significance:-A substituted benzene of the formula <FORM:1033910/C2/2> is reacted with R4COCl in accordance with Friedel-Crafts to form an acyl compound, <FORM:1033910/C2/3> This is nitrated to a nitro compound, <FORM:1033910/C2/4> reduced to the corresponding amino compound, which is acylated to the corresponding N-formyl, N-alkanoyl, or N-alkenoyl derivative, <FORM:1033910/C2/5> which is then cyclized.  The product or its appropriate salts are for use as a pharmaceutical agent (see Division A5).ALSO:Pharmaceutical compositions for internal application, comprise in unit dosage form, a carrier and a non-toxic dose of a quinazaline derivative of formula: <FORM:1033910/A5-A6/1> wherein R2 and R4 are the same or different and are hydrogen or C1 to C5 alkyl or alkenyl which together have a total of no more than 6 carbon atoms, and R6 and R7 are methyl, ethyl, or together with the oxygen links comprise a methylenedioxy group; or pharmaceutically acceptable salts of such compounds, the compositions variously have the following actions: bronchodilator, tranquilizer, sedative, vasodilator, analgesic, cardiac stimulant, anti-anaphylactic and anti-inflammatory activity, and may take the form of tablets, capsules, elixirs, solutions or suspensions.  Other active ingredients may be present, such as tranquilizers, sedatives, analgesics, antipyretics, hypnotics, mucolytics, and antibiotics.
Patent GB-1453630-A (GB)
Title: Flow control valve
IPC: F15B11/04
Filed: 1974-01-18
Abstract: 1453630 Valves CATERPILLAR TRACTOR CO 18 Jan 1974 [16 March 1973] 02546/74 Heading F2V A flow control valve 10 forming part of a hydraulic system for opening and closing the jaws 12, 14 of a clamshell bucket 16 comprises a valve body 32 slidably containing a spool 52 urged to a neutral position shown, in which none of lines 46, 48, 50 communicate, by opposed weaker and stronger springs 68, 70 respectively. Spring 70 acts on spool 52 via a slidable retainer sleeve 56 having an outwardly extending flange 62 which in the neutral position abuts a step 64 defined by body 32 and end cover 38 to limit upwards travel of the sleeve. The spool is controlled by a three-position manually actuated valve 74, movement of which to position 90 directs pressurized liquid from pump 78 via line 86 to the head end 18 of bucket ram 20, causing jaws 12, 14 to open. The liquid pressure is also applied via line 46 and spool passage 57 to the lower end of spool 52 causing upwards movement thereof away from retainer sleeve 56 and into a position in which lines 46, 48 communicate but line 50 remains blocked. Liquid being expelled from rod end 84 of ram 20 thus flows through lines 48, 46 to mix with the liquid entering the ram through line 86 and thus speed extension of the ram. If valve 74 is now moved in the opposite direction to position 76 to direct pressurized liquid through line 50, a branch flow through line 80 acts on the upper end of spool 52 to cause downwards movement of the latter into a position in which lines 48, 50 communicate but line 46 is blocked. Consequently liquid flows through line 48 to the rod end 84 of ram 20 to effect closing of jaws 12, 14. Displaced liquid from head end 18 flows through line 86 and via valve 74 to reservoir 88.