baber/WOPTO huggingface dataset:
Patent GB-748112-A (GB)
Title: Improvements in or relating to screw thread-cutting dies
IPC: B23G5/10
Filed: 1954-03-11
Abstract: 748,112. Making screwing-dies. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. March 11, 1954 [March 16, 1953], No. 7150/54. Classes 83 (2) and 83 (3). A screw-thread cutting-die comprises a number of cutting-edges 10, Fig. 2, on members 11 connected by elastically-deformable members 12 in a closed system so that the cutting forces automatically produce a clearance a behind each edge. The die is carried by supports 15, Fig. 8, so that when engaged with the work 14, the cutting-edges rock into a position determined by a screw 31 and indicated by dash-dot lines in Fig. 2. When cutting has been completed, the edges take up a position clear of the work. The cutting-edge may be soldered to the members 11 and may cut in both directions of work rotation. The members 11, 12 may be dovetailed to one another. The die may be extruded or may be drawn in a series of steps commencing with a tubular piece of circular cross-section. The die is finally heat treated to render it elastically deformable.
Patent GB-582362-A (GB)
Title: Improvements relating to motorised side-cars for pedal cycles
IPC: B62K27/02
Filed: 1945-05-04
Abstract: 582,362. Cycle tractor attachments. ARMSTRONG CYCLES, Ltd., and VINTON, L. G. May 4, 1945, No. 7366/44. [Class 79 (iii)] A motorised side car for attachment to pedal cycles carries at one side a wheel which is driven from the power unit through a countershaft and is interchangeable with the cycle rear wheel, the side car chassis being provided at the other side with a mounting to receive the displaced cycle wheel. The power driven wheel is provided with a sprocket on its near side for the chain drive from the countershaft and a sprocket on its off side to receive the normal chain. The chassis comprises main longitudinal members 10 which carry petrol tank 16, engine 17, clutch 18, chain drive 22 to countershaft 24, and chain drive 32 to chain wheel 33 on the hub 34, which also has a sprocket 35 to receive the normal pedal operated chain. The wheel (not shown) mounted on the hub 34 replaces the rear-wheel of the pedal cycle, and the displaced cycle wheel is remounted in sockets 38 to form the side-car wheel. The chassis is attached to the cycle at three points, (a) at 36 to the lugs normally carrying the cycle rear wheel, (b) by adjustable cranked tube 39 to the seat pillar lug of the cycle, and (c) by adjustable cranked tube to the front down tube. The body is attached to the bars 49, 50 mounted on springs 11, 52.
Patent GB-1161577-A (GB)
Title: Epoxylated Aminomethyldiphenyloxides
Inventor: BREMMER BART JACOB
IPC: C08G59/10
Filed: 1967-02-16
Abstract: 1,161,577. Epoxy resins. DOW CHEMICAL CO. 16 Feb., 1967, No. 7429/67. Heading C3B. Epoxy resins have the general formula in which R 1  and R 2  independently represent H or the diglycidyl aminomethylene group. They may be prepared by reacting an amine mixture, obtained by reaction of ammonia with a mixture of mono-, di-, tri-, and tetrachloromethylated diphenyl oxide, with epichlorohydrin. Reaction may take place at <90‹ C. in the presence of NaOH. The resins may be cured using polycarboxylic acid anhydrides, polyamines or BF 3 /amine complexes.
Patent GB-738680-A (GB)
Title: Flexible shaft coupling
Inventor: SHENK ROBERT H
IPC: F16D3/04
Filed: 1953-03-18
Abstract: 738,680. Universal joints. AMERICAN FLEXIBLE COUPLING CO. March 18,1953, No. 7540/53. Class 80 (2). Diametrically - disposed dogs 9 on each of two shafts to be coupled are mutually perpendicular and are engaged slidingly by segmental members 12 which are retained in position by a ring 20. Spring loaded balls 17 disposed in each member 12 engage an annular groove in the ring 20 to locate the ring axially and also to maintain the members 12 in engagement with the dogs 9. The segments 12 are preferably made of self-lubricating metal, impregnated wood, lignum vitae or the like. In Figs. 5 and 7 (not shown), the segments 12 are retained in the ring 20 by screw heads and by a circlip respectively. The coupling permits angular and lateral misalignment and relative axial movement of the coupled shafts.
Patent GB-806277-A (GB)
Title: Improvements in or relating to pouring devices
IPC: B65D47/06
Filed: 1957-03-07
Abstract: 806,277. Pouring devices. RECKITT & COLMAN Ltd., and CROWDER, J. H. March 7, 1957, No. 7655/57. Class 125(3). A pouring device for containers for liquids consists of a hollow cylindrical metal plug 12 which is a push fit in the neck 11 of a container and has a flange 15 constituting a pouring lip and a discharge hole 17 and air venting hole 18 in the end wall 16. In a modification, Fig. 4, a hollow plug 20 of polythene has two annular flanges 22, 23 of which flange 22 forms a pouring lip, and holes 26, 27.
Patent GB-691433-A (GB)
Title: A device for applying adhesive to an intermittently moving web
IPC: B31B50/72
Filed: 1951-04-03
Abstract: 691,433. Coating webs. DEWEY & ALMY CHEMICAL CO. April 3, 1951. [Aug. 18, 1950] No. 7751/51. Class 140. A device for applying adhesive to a web which is advanced in a succession of steps comprises an applicator roll in constant contact with the web, means for supplying said roll with adhesive, power means for driving said roll through a transmission at a comparatively slow speed less than that attained by the web during its advancement, the transmission either (a) being so constructed as to permit the roll to over-run its drive due to the pull of the web during its advance or (b) embodying means for interrupting the drive during each advance of the web or during a succession of advance movements of the web. The device may be incorporated in a box-taping machine wherein a paper tape is coated with an aqueous dispersion of an adhesive resin and immediately pressed on to the joint of a moving box blank, the continuous rotation of the roll preventing the building-up of deposits of resin on its surface. Tape 23 is led from a supply roll (not shown), and over appropriate guide rolls to a tensioning device 35. It then passes under a guide 36, over the upper quadrant of a coating roll 10 dipping in adhesive in a tray 16, and into a conventional tape feed mechanism indicated by the roll 40 at which point it is applied across the joint of box 37. After the end of the tape has been stuck to the box, the tape is pulled through this entire train by the forward movement of the box imparted through drive chain 38 and push slat 39. The tape is severed by knife 41 which is automatically timed. The timing may be initiated by a device 42 which lifts as the as the box 37 passes beneath it. While the tape is stationary, the roll 10 in contact with it is slowly rotated by a low speed motor 17 through a drive train which includes an overrunning clutch. When the tape is pulled forward by the movement of a box, this clutch permits the roller 10 to be rotated at a higher speed by contact with the moving tape. The film of adhesive on the roller 10 may be controlled by an adjustable doctor bar, knife, or roller. The roller may be constantly driven from the shaft of motor 17 through a universal joint connection, e.g. a coil spring. Metal fingers 43 hold the tape against the roll 10. In modifications, the mechanical overrunning clutch may be replaced by an electrically energized magnetic clutch, or the gear and clutch drive may be replaced by a friction drive brought into and out of operation by a solenoid, which is controlled by a sensing switch, e.g. one mounted to respond to the lifting motion of the wheel sensing finger 42. The roll is normally driven slowly, but when a box comes along, the switch opens, the solenoid is de-energized, the friction wheels disengage, and the roll 10 is freed to be rotated by the tape. The solenoid may be energized through a relay connected across the main drive control circuit so that the roll 10 is free while the main machine operates but is rotated slowly when the main machine stops.
Patent GB-522873-A (GB)
Title: Improvements in or relating to change speed hub gears for pedal vehicles
IPC: B62M11/14
Filed: 1939-03-10
Abstract: 522,873. Variable-speed gears. COMPAGNIE CROIX. and BOYER, L. March 10, 1939, No. 7762. [Class 80 (ii)] A three-speed hub gear for cycles comprises a driving crankshaft 3 to which is secured a carrier 4 carrying planet pinions 6. The planets 6 are in engagement with a sun gear 7 and an annulus 9 which are freely mounted upon the crankshaft 3 and are integral with hollow shafts 8 and 10 extending over half the length of the shaft 3. These hollow shafts 8 and 10 are in driving engagement with a driven hub 19 by means of one-way clutch devices comprising pawls 24, 25 and ratchet wheels 26, 27 and are also adapted to be selectively held by pawls 28 or 29 cooperating with ratchet wheels 30, 31 and operable by the rider through a flexible cable or other suitable means. When both the braking pawls 28, 29 are free the shaft 3 drives the hub 19 in direct drive through the epicyclic gear and both one-way devices. By holding either of the shafts 8 or 10 of the sun or annulus by means of the pawls 28, 29 an increased speed is obtained through the one-way device of the other member. Thus three speeds in all are obtained.
Patent GB-627770-A (GB)
Title: Improvements in or relating to the mounting of electrical equipment
IPC: H01R13/62
Filed: 1947-03-21
Abstract: 627,770. Two-part couplings. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and WOODLAND, C. R. March 21, 1947, No. 7770. [Class 38 (i)] [Also in Groups XXXVII and XXXIX] Telephone subscribers' meters are jacked in to rack mounting plates and are recured by gravity-locking means. The mounting plate 10 carries horizontal sockets such as 11, each having a hole 18 which slopes downwardly to the rear of the sockets and is provided with a shoulder 19. Springs 12, 13 united to form wiring tags 14 are secured to the socket and make contact with the coil tags 22 of the meter 20. A guide post 23 is screwed on to the core extension piece 29 of the meter electromagnet, and is of reduced diameter towards its end to allow the meter to pivot slightly with respect to the socket. The mushroom head 26 of the guide post engages with the shoulder 19, thus preventing withdrawal of the meter unless prior lifting thereof takes place. The invention is stated to be applicable also to telephone traffic meters and relays.
Patent GB-848505-A (GB)
Title: Improvements in pressure regulating apparatus in particular for pneumatic measurement instruments
Inventor: MENNESSON ROBERT MAURICE
IPC: G05D16/10
Filed: 1958-03-11
Abstract: 848,505. Valves. SOC. D'APPLICATIONS ET DE CONSTRUCTIONS POUR MATERIEL AUTOMOBILE, S.A.C.M.A. March 11, 1958 [March 28, 1957], No. 7830/58. Class 135. Apparatus for maintaining a constant pressure in a chamber 2 comprises a body 1 having an inlet conduit 3 communicating via a restrictor 4 with a reservoir 5 of substantially constant pressure, an outlet conduit 8 leading to a pneumatic measuring instrument and a funnelshaped passage 9 in communication with the atmosphere and having therein a floating disc 10 mounted on a rod 11. The lower end of the rod carries a ball 14 immersed in a viscous fluid 13 to act as a damping device. The upper end of the rod passes freely through a ring 15 and extends coaxially in a transparent tube 16. Both the tube and rod carry graduated marks to indicate the position of the disc 10. The disc 10 maintains a balanced position in the passage 9 such that the pressure in chamber 2 remains constant at a value between atmospheric pressure and the pressure of the reservoir 5. In another embodiment the chamber 2 is maintained at a pressure less than atmospheric. In this arrangement the passage 9 is located below the chamber 2 and fluid flow takes place in the direction from conduit 8 to conduit 4.
Patent GB-261972-A (GB)
Title: Improvements in or relating to sound amplifying, reproducing or recording instruments or devices
IPC: G11B25/04
Filed: 1926-03-22
Abstract: 261,972. Rod, A. E. D. B. March 22, 1926. Diaphragms.-A vibrator for sound amplifying, recording, or reproducing comprises a tongue-shaped flexible curved sheet 11 of compressed wood, pulp, parchment, paper, &c. fixed at its broad end to an adjustable support 20 and connected at its tongued end with a guided member 12 bearing against a recording or reproducing tool.
Patent GB-720835-A (GB)
Title: Improvements in butterfly valves
IPC: F16K1/226
Filed: 1953-03-23
Abstract: 720,835. Hinged valves. WALDENMAIER, H. W., [trading as ERHARD, J., [Firm of]]. March 23, 1953 [March 22, 1952], No. 7861/53. Class 135. The closure disc of a butterfly valve has an elastic mounting whereby, in the closed position, it is urged axially by upstream pressure to form a fluid-tight seal with its seating. The disc 2, which has a part-spherical edge 2a coacting, with slight clearance, with a correspondinglyshaped seat ring 3, is located by four supports 4 fixed in diametrically opposite pairs on each side of the disc and bearing in arcuate grooves 5 disposed on either side of the seat ring 3. By this arrangement a through spindle is not required and the edge 2a of the closure disc and the seat ring 3 are therefore uninterrupted. The supports 4 are attached to the closure disc 2 by bolts 12, Fig. 4, on which rubber or spring cushions 13 are mounted allowing the disc 2 to be urged to the right by fluid pressure to cause the rim of the disc to be pressed against the seat ring. Keys 14 transmit to the closure disc the turning moment which is applied to the supports 4 through worm gearing 8, 9.
Patent GB-550834-A (GB)
Title: Improvements in and relating to the damping of electric regulators
IPC: G05B5/01
Filed: 1941-06-24
Abstract: 550,834. Automatic control systems for dynamoelectric machines &c. SOMERVILLE, T. B., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 24, 1941, Nos. 7945/41 and 8687/42. [Class 38 (iv)] Voltage; variables in general.-An electrical regulator of any physical state, condition or quantity wherein an element susceptible to changes in the condition assumes a series of positions, conditions or configurations is caused to effect damped control of the condition by making the differential coefficient of the function relating to the position &c. of the regulator with respect to the condition being regulated small for a quick change in the condition and large for a slow change. The action of a dashpot is simulated. A heated thermally responsive member is additionally heated or permitted to cool upon a change in position of the said element and this member is made to react on the element in the sense tending to increase the change in position. The reaction may be applied electrically or mechanically. Fig. 1 shows the coil 2 of a regulator, and the voltage of an alternator 4, in parallel with a resistance 14 of high temperature coefficient. The voltage across the coil increases with displacement of the coil of the regulator so that the heating of the resistance changes with regulator displacement. The resistance may be additionally heated by a coil 16 in proportion to alternator excitation to produce a drooping characteristic. Fig. 3 shows a voltage regulator wherein a bimetallic member 34 coupled through a tension spring to an element 37 responsive to the alternator volts is heated by the excitation current which is varied by a change in the position of the regulator. A wire or spring carrying the excitation current may replace the bimetallic element.
Patent GB-281150-A (GB)
Title: Improvements in or relating to additional air supply devices for internal combustion engines
IPC: F02D9/00
Filed: 1927-03-22
Abstract: 281,150. Graf, L. March 22, 1927. Closure members, rotary disc.-An additional air valve for internal-combustion engines comprises a casing 12 mounted on a bracket 16 and adapted to be connected to the engine manifold by a flexible pipe 15, the cover 13 of the casing having one or more inlet apertures 14, 14' controlled by a disc valve 3 the arm 1 of which is adjustablgamma connected at 2 to the throttle-actuating means. The disc valve has one or more series of apertures corresponding to the apertures 14, 14', each aperture of the series being fitted with an interchangeable nozzle such as 5<1>. The series of apertures are arranged in arcs of circles and in such a manner that, upon rotation of the disc, one aperture of one series registers with one of the apertures 14 or 14<1> and then an aperture of the other series with the other of 14, 14'. A spindle 17 screwed iuto the cover 13 secures the disc 3 through a spring 18 and ball bearings 19. The series of apertures may be arranged so as to be moved in a straight line over the apertures 14, 14<1>.
Patent GB-179029-A (GB)
Title: Improved pumice aggregate for concrete
IPC: C04B14/16
Filed: 1921-03-14
Abstract: 179,029. Hambloch, A. March 14, 1921. Concretes.-An aggregate for use in light concretes consists of pumice which has been separated from heavy impurities by classification with water, comminuted until it resembles a mixture of sand and gravel and artificially dried. The grains are then coated with a cement or lime magma and air-dried. A mixture of fine and coarse grains is preferably used in the manufacture of concrete, a mixture of cement and trass, with or without lime, being used as a binding-agent.
Patent GB-541334-A (GB)
Title: An improvement in or relating to pressure-reducing valves
IPC: G05D16/10
Filed: 1940-05-04
Abstract: 541,334. Pressure-regulating valves. BLAKEBOROUGH, R. A., and BROTHERTON, C. May 4, 1940, No. 8027. [Class 135] A pressure regulating valve actuated by a piston or pistons has the load tending to open the valve automatically and progressively increased as the valve member moves towards its open position. In the form shown in the Figure, the valve spindle is connected by an arm c and links d to the actuating piston which is loaded by dead weights e. Auxiliary loading weights g are carried by an arm f mounted on the spindle a and adapted to move from a vertical to a horizontal position as the valve opens. In a modification the weights e and g are carried by the two arms of a ballcrank lever connected to the actuating piston and valve spindle, In another form a transmitting lever carrying the weights e is coupled by a flexible strap with a pulley connected to a camshaped pulley around which a flexible strap carrying the weights g is adapted to wrap as the valve moves to its open position. In this form the auxiliary load is subtracted from the main load so that its movement is arranged to be a minimum when the valve is fully open. In a further modification the actuating piston is loaded by a dead weight and the transmitting lever carries a mobile weight held between two springs.. Reference has been directed by the Comptroller to Specification 229.419, [Class 135].
Patent GB-492444-A (GB)
Title: Improvements relating to railway fog and like signals
IPC: B61L5/20
Filed: 1937-03-20
Abstract: 492,444. Detonator apparatus. STEWART, A. C., and CAMPBELL, J. March 20, 1937, No. 8255. [Class 105] A treadle-actuated detonator mechanism in which the treadle is moved away from and towards the rail by a connection to the signal, such movement effecting the cocking of the apparatus and bringing a new cartridge into position, has the magazine mounted to rotate on a horizontal axis with the cartridges arranged horizontally and discharging against a baffle member whereby the flash is deflected upwardly. The magazine is a vertical disc 33 arranged so that the cartridges 48 discharge parallel to the track before being deflected by the baffle plate 52, Fig. 3, when fired by a treadle-released hammer 30 which is cocked by the inward movement of the treadle away from the rail when the wayside signal is put at clear ; the treadle is of course returned to the operative position when the signal is put at stop. The treadle is in the form of a depressible bow spring 16 fixed to a pivoted member 15 which is linked to a bell-crank 25, 45 the arm 45 of which depresses a detent 43 whereby the hammer 30 is released. This treadle linkage is carried by a bar 13 moved to and from the rail 8 by an arm 9 on the shaft 10 of a counterweighted lever 6 connected to the signal wire. On movement of the bar 13 to the left an arm 56 on the shaft 10 depresses a slide 54 against the action of a spring 29 ; this slide rocks a shaft 28 whereby the hammer 30 is swung back into cocked position and the cartridge disc 33 is stepped forward by a pawl. The detent 43 by which the hammer is held cocked is biassed upwardly by a counterweighted lever 44. A side cover plate for the cartridge disc has the upper half 50 hinged to give access for refilling. So long as the mechanism is cocked the disc is locked against movement, as a cam 58, Fig. 8, on the shaft 28 depresses a tappet lever 57 against a locking pin 36 which at other times can move against the action of its spring. Specifications 373,283 and 474,172 are referred to.
Patent GB-292274-A (GB)
Title: Improvements in or relating to electric time switches
IPC: G04C23/02
Filed: 1927-03-25
Abstract: 292,274. Gunning, J. March 25, 1927. Couplings. - To prevent an attendant receiving a shock when adjusting a time switch, the lid of the switch casing cannot be opened until the switch has been rendered dead. For this purpose the two supply terminals A are connected to two contact sockets D, the terminals of the time switch are connected to two contact sockets F and the sockets D, F are adapted to be connected electrically by two pins G having heads I, one at least of the pins G passing through the door H of the casing so that this pin must be withdrawn, either manually or automatically by the opening of the door, before access to the interior of the casing becomes possible.