baber/WOPTO huggingface dataset:
Patent GB-276745-A (GB)
Title: Improvements in stroboscopic apparatus
IPC: G01P3/40
Filed: 1926-06-03
Abstract: 276,745. Ashdown, A. J. June 3, 1926. Stroboscopic apparatus. - In order to reduce the observation period in stroboscopic apparatus without at the same time reducing the time of the eclipse period, the speed factor determining the frequency of observation is different from that determining the length of time of each observation. A pair of shutters, arranged across the line of vision, is used, both moving simultaneously and preferably in the same direction, the speed of one being greater than the speed of the other. In one form a pair of concentric sleeve like shutters a, b are utilized having apertures a<1>, b<1>, so arranged that they coincide on the line of vision at intervals during rotation. The inner shutter is rotated at a lower speed than the outer shutter, and determines the frequency of observation, the outer shutter determining the length of time of the observation. The inner shutter is geared to the outer shutter by gearing c the ratio of which may be changed, or the two shutters may be driven independently- In another form the shutters consist of apertured discs. Specification 228,577 is referred to.
Patent GB-941598-A (GB)
Title: Dispersion hardening of uranium metal
IPC: C22C1/10
Filed: 1962-04-12
Abstract: Uranium metal is hardened by forming a dispersion of UO2 in the metal matrix, the method used comprising preparing finely-divided UH3 from the metal, treating the hydride with small amounts of oxygen to coate the particles with UO2, heating to decompose the hydride to metal, and then treating again with oxygen. Uranium metal in lump or shot form may be treated at 400  DEG -690  DEG F. with dry hydrogen to form UH3, which may be reconverted to metallic uranium and the process repeated to yield a hydride product of size 0.5 to 20 microns.  Argon is then passed into an agitated bed of the hydride and calibrated amounts of oxygen are admitted at ambient temperature to 250  DEG F. Hydrogen is then removed by heating in vacuum at 600 DEG -700  DEG F. and more oxygen is introduced as before to a desired UO2 content in the range 1 to 30% by volume. The uranium-UO2 powder mixture is hot or cold pressed and extruded at 1500  DEG -1700  DEG F. under a pressure of 10,000 to 22,000 pounds per square inch to form a product useful as nuclear fuel.
Patent GB-1299621-A (GB)
Title: 0-substituted-2-methylbenzimidazoles
IPC: C07D207/26
Filed: 1970-03-24
Abstract: 1299621 1-Substituted-2-Methyl Benzimidazoles A H ROBINS CO Inc 24 March 1970 [11 April 1969] 14118/70 Heading C2C Novel 1-substituted-2-methyl benzimidazoles of the formula wherein SUB is 4-phenylpiperazinyl, 4-phenylpiperdinyl, 4 - phenyl - 1,2,3,6 - tetrahydropyridinyl, 4 - phenyl - 4 - hydroxy - piperdinyl, 3 - phenyl - 3 - hydroxy pyrrolidinyl, 3 - (N- methyl amilino) pyrrohdinyl, 3-phenyl pyrrolidinyl or 3-phenyl-3-pyrrolinyl attached to the molecule through a nitrogen atom in the heterocyclic ring of SUB, wherein the phenyl rings are optionally monosubstituted with substituents which do not interfer in the process for their preparation and n is 2 or 3 may be prepared by alkylating a 2-methylbenzimidazole with an #-halo alcohol, halogenating the resulting 1 - (# - hydroxyalkyl) - 2- methylbenzimidazole and reacting the product with a compound SUB-H. Pharmaceutical compositions of compounds I or salts thereof with a carrier show bronchodilatory activity when administered parenterally or orally.
Patent GB-749948-A (GB)
Title: Improvements in or relating to linear-dimension gauges
IPC: G01B3/20
Filed: 1954-05-14
Abstract: 749,948. Linear-dimension gauges. GERMANN, W. May 14, 1954 [May 16, 1953], No. 14147/54. Class 106 (2). A caliper-type linear-dimension gauge with parallel moving jaws 1, 3 has at least a part of one jaw capable of rotating relative to the other jaw for measuring the perpendicular distance between two parallel planes while contacting points not located on the same perpendicular. In one embodiment, one jaw 1 is fixed to a scale 2, Fig. 8, with which co-operates a vernier scale 35 on a cursor 4 to which is pivoted the other jaw 3. In another embodiment, Fig. 4, the jaw 3 is fixed to the cursor 4 and the jaw 1 is pivoted to the scale 2, formed with an extension 22 bearing against the jaw 1. In the embodiment of Fig. 1, a graduated tube 6 is rotatable on a rod 5 fixed to the jaw 1 and the cursor 4 carrying the jaw 3 is slidable along the tube 4 but keyed thereto by a longitudinal groove and spring key. The jaw 3 may be turned to any desired angle to the jaw 1 by turning the tube 6 on the rod 5, being located for normal gauging operations by means of a spring 17, ball 16 and hole 18, other holes being provided for other locations, if desired. In each of these embodiments the angle between the jaws may be indicated by a scale 19 and index mark 20. In the embodiment of Fig. 7 either or both jaws may be extended by resilient blades 26 capable of swinging at an angle to the main jaw and, if desired, slidably secured by screw and slot means 30.
Patent GB-378938-A (GB)
Title: Improvements in or relating to loud speakers and like sound reproducing apparatus
IPC: H04R7/18
Filed: 1931-05-14
Abstract: 378,938. Diaphragms. COLASSI, W. L., Mark Lane Station Buildings, London. May 14, 1931, No. 14249. [Class 40 (iv).] A diaphragm for a loud-speaker or the like, formed as a cone with a peripheral extension lying in a plane at rightangles to the axis of the cone, is mounted by means of a ring or rings of sponge rubber or the like attached by an adhesive to one or both sides of the s a i d peripheral extension, and not projecting beyond it. In the construction shown, the peri, pheral portion 3 a is connected tc the cone 1 by an intermediate reversely bent portion 1a. Rings 4, 4a of sponge rubber are attached by rubber solution or other adhesive to the flange 3a, in which radial cuts at intervals are first made, and a wooden ring 5 is glued to the ring 4. The ring 5 serves for attachment to a chassis 6. The assembly comprising the chassis, the diaphragm, and the actuating unit (not shown) may then be arranged so that the rubber ring 4a bears lightly against a baffle board 8, to which it may be secured by an adhesive, the weight of the unit being taken by supports (not shown) When the diaphragm is to be used without a chassis frame, the ring 5 is dispensed with, and there may be only one rubber ring, which is secured to the baffle board. More than one non-resilient ring such as 5 may be employed, and may be screwed or bolted to the baffle board or cabinet. The internal diameter of the rings and of the aperture in the baffle board (where this is provided), is less than the external diameter of the peripheral extension of the diaphragm.
Patent GB-954426-A (GB)
Title: Improvements in or relating to screw pumps
Inventor: MAGYAR JOZSEF
IPC: F04C2/16
Filed: 1960-04-22
Abstract: 954,426. Rotary pumps. PNEUMATIKUS ES HIDRAULIKUS GEPEK GYARA. April 22, 1960, No. 14254/60. Heading F1F. In a meshing screw pump, a section through a tooth flank on the driving spindle, Fig. 7, is a convex curve comprising an epicycloid part #-e, and a curtate epicycloid part d-e, and a section through a tooth flank on a sealing spindle, Fig. 6, is a concave curve comprising a prolate epicycloid a-b. The latter may also have a hypocycloid part b-c for example, a radial straight line. In the embodiment described two sealing spindles co-operate with a driving spindle, each spindle having two teeth, and the driving spindle has two oppositely handed parts, so that radial and axial forces on it are balanced.
Patent GB-1345613-A (GB)
Title: Method and apparatus for the production of sliding clasp fasteners
IPC: A44B19/54
Filed: 1971-05-12
Abstract: 1345613 Shaping sliding clasp fasteners W UHRIG 12 May 1971 [13 May 1970] 14442/71 Heading B5A [Also in Divisions D1 and E2] Stringer tapes 1 are woven in pairs on a ribbon loom with a configuration shown in Fig. 1, bent, moulded to provide interengaging teeth 9, brought together to engage the teeth and finally bent and heat set to the configuration shown in Fig. 2. In Figs. 3 and 4, the woven tapes 1, 1a pass around deflecting studs 31 which bend the tapes to the shape of Fig. 6 (not shown) around studs 32 which further bend the tapes to the shape of Fig. 7 (not shown), through embossing rollers 23 (see Fig. 16, not shown) which emboss the teeth to the shape of Fig. 8 (not shown), through precurving means 24 which precurve the tapes to the shape of Fig. 9 (not shown) through a duct 25 (see Fig. 18, not shown) which heat sets the tapes to the Fig. 9, shape, the tapes are interengaged by passing around studs 2, the tapes then pass through a moulding duct 28 which progressively reorients them from the shape of Figs. 29 to 32 (not shown), the tape then passes through a further duct 29 which irons the tape to the final shape of Fig. 37 (not shown).
Patent GB-1102557-A (GB)
Title: Antioxidant resins and compositions containing them
IPC: C08G8/02
Filed: 1965-04-06
Abstract: Polymers subject to oxidative degradation are stabilized by addition thereto of at least 0.001% by weight based on the weight of the polymer of a phenolic resin of the formula <FORM:1102557/C3/1> in which n is an integer of at least 2, R1, R2, R3 and R4 each represent hydrogen or an alkyl group and may be the same or different, provided that no position ortho or para to an OH group is occupied by hydrogen, Y and Z, which may be the same or different, each represent an alkylene, alkylidene, alkylidene dioxy, carboxy, thio or dithio radical, provided that at most one of Z and Y represent a sulphur containing radical or an alkylene radical.  The polymers described as being subject to oxidative degradation are polyolefins especially polyethylene, an ethylene-ethyl acrylate copolymer and polypropylene. Phenolic resins as described above wherein Z represents a thio or dithio radical and Y represents an alkylene, alkylidene, alkylidene dioxy or carboxy radical, are new compounds. Examples describe the preparation of such polymers from (a) 4,41-thiobis (6-tert-butyl-m-cresol) and formaldehyde and (b) 4,41-butyl-idenebis (6-tert-butyl-m-cresol) and sulphur dichloride.  These two polymers are used to stabilize the polyolefins referred to above.
Patent GB-506608-A (GB)
Title: Shoulder pad
IPC: A41D27/26
Filed: 1938-05-16
Abstract: 506,608. Wearing-apparel. SLADKUS, G. May 16, 1938, No. 14604. Convention date, Nov. 8, 1937. [Class 141] A shoulder pad is provided with means to enable it to be detachably connected to the shoulder strap of an undergarment or to the undergarment itself or to a band arrangement provided on the undergarment. In the form shown, the shoulder pads e are each provided with a button d to engage one of a number of buttonholes c in the shoulder strap b of a brassiere a. In a modification, several buttons are provided along the length of each shoulder pad or the latter is provided either with an adjustable strip having a button or with a ribbon having buttonholes which is attached to the shoulder strap by a stud &c. In a further modification, the button and buttonhole connections are replaced by press buttons, hooks and eyes, or clasps.
Patent GB-1029183-A (GB)
Title: Variable pressure ratio valve
IPC: G05D16/06
Filed: 1963-04-11
Abstract: 1,029,183. Fluid-pressure brakes; valves. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. April 11, 1963 [April 23, 1962], No. 14625/63. Headings F2F and F2V. A fluid control valve arrangement which may be used in a vehicle brake-system is formed with a cylinder 28, Fig. 1, open to an inlet 14, in which cylinder is a piston 30 supported by a diaphragm 52; the piston 30 embodies a seat 34 for an inlet valve 36 integral with an exhaust valve 40 which co-operates with a seat 42 on the tubular extension of a hollow piston 48 that leads to an atmospheric exhaust port 22. The upper side of the piston 48 is constantly exposed to a control pressure which is inversely proportional to vehicle load. The space 16 below the diaphragm 52 is connected to a port 18 leading to brake chambers or a relay valve. The valve body 54 is provided with fingers 68, which in the position shown, engage the upper diaphragm surface whilst the piston 30 has fingers 70, which in the lower position of the piston 30, pass through the spaces between the fingers 68 and increase the area of the diaphragm acted upon by the pressure in the space 16. The piston 48 is provided with a stop 72 in which is a piston 74 open to inlet pressure, which piston is of the same area as the inlet valve seat 34, whereby the piston 74 moves outwardly from the stop 72 to abut the piston 48 and so balances out the inlet pressure acting downwardly on the valve 36. With the vehicle heavily laden no control pressure is available and the piston 48 is extended so that upon applying pressure to the inlet 14 the piston 30 is depressed, the valve 40 abuts the seat 42 and the inlet valve 36 is opened to admit inlet pressure to the space 16; concomitantly inlet pressure raises the piston 74. The distance travelled is too small to enable the diaphragm 52 to be moved clear of the fingers 68. When the pressures in the cylinder 28 and space 16 are the same the inlet and exhaust valves are " lapped." If the vehicle is lightly laden, so requiring a smaller braking pressure, the piston 48 is fully retracted since the central pressure is high and the piston 30 must travel further to operate the brakes, whereupon the fingers 70 increase the effective area of the diaphragm so that the smaller braking pressure acting on a larger diaphragm area in space 16 balances the relatively greater inlet pressure acting on the piston 30 and so provides for " lapping." In a modification, the position of the exhaust valve seat 42 (Fig. 5, not shown), is variable directly in dependence upon the vehicle load by being connected to a plunger 80 operable by a lever 96 connected between sprung and unsprung parts of the vehicle. Damping of the lever is achieved by interconnecting two parts thereof by a spring 106. The pivot pin 100 of the lever carries a damping vane 108 housed in an oil-filled casing.
Patent GB-1005095-A (GB)
Title: Improvements relating to thread feeding arrangements for circular rib knitting machines
IPC: D04B35/00
Filed: 1963-04-11
Abstract: 1,005,095. Knitting machines. FRANZ MORAT G.m.b.H. April 11,1963 [April 12, 1962], No. 14643/63. Heading D1C. A circular rib knitting machine has a thread gripping and cutting device comprising two pairs of spaced parallel arms 17, 19; 18a, 20, one pair being parallel to the other and movable relatively along an axis perpendicular to their length to a position where the arms 18a and 20 engage-respectively between arms 17 and 19 outside of arm 17, the arms being then movable simultaneously while being turned about the above axis: As shown, bar 5 is mounted in tube 6 and has, at its upper end the armature 9 of an electromagnet 7, the armature 10 of electromagnet 8 being secured to tube 6, the electromagnets being mounted in housing 1. Springs 11, 11<SP>1</SP> bias bar 5 upwards, spring 11<SP>1</SP> engaging at its lower end a middle piece of housing 1 and at its upper end a disc 12 freely slidable on bar 5 which engages the lower end of spring 11 whose upper end engages armature 9. The pairs of arms 17, 19 and 18a, 20 are secured respectively to the lower ends of the bar 5 and the tube 6. Spring 11 is weaker than spring 11<SP>1</SP> so that on energization of coil 7, the pull on aramature 9 carrying bar 5 overcomes the resistance of spring 11 before spring 11<SP>1</SP> is compressed. When electromagnet 8 is energized, it pulls armature 10 and tube 6 upwards until a disc 13 loosely mounted on bar 5 engages middle piece 3. During the simultaneous movement of the pairs of arms, a bolt 6<SP>1</SP> on tube 6 engages a cam 14 on a bush 4<SP>1</SP> beneath electro magnet 8 and a bolt 5<SP>1</SP> on bar 5 engages a cam 15 in a bush 2<SP>11</SP> above electromagnet 7 so that the arms are turned to avoid the rib needles When yarn F is knitted, the device is in position I, Fig. 1, when cutting and gripping in position II and when reinserting the yarn in position III. Electromagnet 8 need not remain energized in position II as tube 6 is held in this position by element 18a attached to bar 5 which is held up by springs 11, 11<SP>1</SP>. When removing the yarn from operation, arm 18a and knife 20 rise relative to arms 17 and 19 so as to clamp and sever the yarn. As shown, cylinder 1 is fastened in a clip 107 carried on an adjacent part 109 secured to the stationary rib cam disc 104. Part 109 carries a thread guiding plate 109a which opens any closed needle latches. Switches 116 carried on disc 104 are operated by cams 117 on dial 103 to energize electromagnets 7, 8.
Patent GB-550296-A (GB)
Title: Improvements in or relating to the administration of inhalant gas mixtures
IPC: A61M16/10
Filed: 1941-11-17
Abstract: 550,296. Valves. BRITISH OXYGEN CO., Ltd., EDMONDSON, W., and JONES, W. Nov. 17, 1941, No. 14758. [Class 135] [Also in Group VI] Relates, in apparatus for administering inhalant, gas, to proportioning valve mechanism which controls a main inlet port 14 for reception of exhaled gases on their way to a rebreathing reservoir 13 and a main outlet port 22 for inhalant gas from the reservoir and is connected to a carbon dioxide absorption unit 11. The proportioning valve mechanism preferably comprises a cylindrical casing 10 which sup ports the rebreathing reservoir 13, the expansible part of which may be coupled with a lever 44 by which forced breathing may be applied. The reservoir 13 comprises accordion pleats 37 held at the outer end between a pair of cover plates 38 and clamped at the inner end to an annular seating 39. Within the casing 10 are mounted drums 49, 50. Drum 49 is ported in well known manner so that, depending on the position of the drum, all, part or none of the exhaled gases pass through the unit 11. Drum 50 is ported so that the amount of anaesthetizing gas passing out of a container 12 is controlled. Each drum 49, 50 has an operating spindle 51 and is held in position in casing 10 by means of a gland housing 52. Spindle 51, extending through packing 53, gland washer 54 and gland nut 55 carries an operating knob 56. In operation, with valve 16 in communication with an expiratory tube and valve 23 in communication with an inspiratory tube, the expired gas will, if port 18 is fully open, pass wholly through the absorbing unit 11 to the reservoir 13 and, upon inhalation, will return through the unit 11 and pass out of the apparatus through valve. 23. If drum 49 is rotated to close port 18 wholly or partially, the exhaled gas or part of it will pass directly into reservoir 13 through port 19. If an anaesthetic vapour is to be administered drum 50 is rotated so as to open port 20, the extent to which port 20 is opened determining the 'degree of vapour pick-up. The contraction and expansion of reservoir 13 will cause knob 47 to rise and fall and furnish an indication of the depth of breathing. Specification 258,454, [Class 81 (ii)], is referred to.
Patent GB-1090662-A (GB)
Title: Improvements in or relating to folding machines
IPC: B21D5/04
Filed: 1965-04-08
Abstract: 1,090,662. Angular bending. W. E. GALE. June 10, 1966 [April 8, 1965], No. 14858/65. Heading B3E. A machine for folding sheet metal comprises a rigid structure 5 including a bed 1, a bending member 3 journalled on said structure for movement about a longitudinal axis with respect to the bed, a longitudinal clamping element 17 to coact with the bed I gripping the sheet 2 adjacent to said axis, a plurality of thrust members 16 engaged with and adjustable along the clamping element 17, first adjustable thrust means 9, 14 to act between the structure and the thrust members 16 in a direction substantially normal to the plane of the sheet 2, and second thrust means 20, 21, 22 to act between the structure and the thrust members 16 with a component of direction parallel to the plane of the sheet 2. Clamping is effected by rocking the shaft 9 to cause cranks thereon to move the thrust rods 14 downwardly. Thrust rods 22 hold the thrust blocks 16 against rearward movement and are adjusted by rocking an eccentrically mounted shaft 20. For adjustment to and from the plane of the sheet the shaft 9 is mounted in eccentrically adjustable bearings. The blocks 16 are adjustable along the element 17, the cranks are adjustable along the shaft 9 and the members 21 along the shaft 20.
Patent GB-969516-A (GB)
Title: Method of and apparatus for carrying out chemical reactions in a heat-exchange reactor
Inventor: SOWERBY AUSTEN EDGAR
IPC: B01J19/18
Filed: 1961-04-25
Abstract: <PICT:0969516/C1/1> Alcohols and alkaryl hydrocarbons are respectively sulphated and sulphonated using sulphur trioxide in an inert gaseous diluent, e.g. air, by causing the reaction mixture to flow through a vessel and introducing heat into or abstracting heat from heat exchange surfaces situated transverse to the flow of reactants, the temperatures of these heat-exchange surfaces being independently controlled, and introducing the sulphur trioxide-air mixture into the reaction mixture at several points in the flow path. Specified starting materials are lauryl alcohol and dodecyl benzene. As shown in Fig. 1, apparatus used to sulphonate alkyl benzenes, comprises a cylindrical reactor 10 containing baffles formed by perforated plates 11 and 12 which contain tubes 13 welded thereon. Each baffle plate has inlet 18 and outlet 19 connected in independent circuits (not shown) to a supply of cooling fluid, in this case water. A shaft 14 on which are mounted agitator blades 15, passes through the plates, which subdivide the reactor into inlet chamber 20, reaction chambers 21 to 28, quenching chambers 29 and 30 and exit chamber 31. Inlets 33 of chambers 21-25 are connected by pipe 36 to a sulphur trioxide-air supply, inlets 33 of chambers 26-28 are closed by plugs 56, and inlets 33 of chambers 29 and 30 are connected by pipe 39 to a supply of quenching water. Cooling water is passed through the baffle plates to reduce the temperature in chambers 26-28 to 55-60 DEG C., and in chambers 29 and 30 to 60-65 DEG C. The product from outlet pipe 34 is subsequently neutralized by aqueous alkali. In a modification (Fig. 2 not shown) for the sulphation of alcohols different concentrations of sulphur trioxide in air are supplied to chambers 21-24 and 25-28 respectively, and the inlets 33 of chambers 29 and 30 are closed; in this case the reaction is quenched by degassing prior to neutralization. Specification 969,517 is referred to.
Patent GB-647308-A (GB)
Title: Improvements in duplicating machines
IPC: B41L5/06
Filed: 1948-06-03
Abstract: 647,308. Duplicating-machines. FORD, F. R. June 3, 1948, No. 14956. [Class 100 (ii)] In a rotary mirror-script duplicator means are provided to prevent uneven impressions due to bending of the rubber covered impression roller 15, and accordingly each end portion of the roller spindle 14 is fitted with a bracket 18 between the slidable bearings 13 and the ends of the roller 15, roller or ball bearings 19 being arranged between the brackets 18 and spindle 14. The brackets 18 are provided with arms 20 pivoted to the ends of a tie-rod formed of parts 21 connected by a screw 22 having threads of opposite hand, which screw into the adjacent ends of the parts 21, and by means of which the length of the tie-bar can be adjusted so as to apply a bending movement to the roller 15 in a direction opposite to that produced by the pressure of the spindle bearings 13 and the reaction of the cylinder 10. The tie-rod is prevented from swinging about the bearings by means of clips 24 engaging a fixed shaft 25.