baber/WOPTO huggingface dataset:
Patent GB-819796-A (GB)
Title: Improvements in or relating to sheet feeding apparatus
Inventor: DOLLE DAVID E
IPC: B21D43/24
Filed: 1957-03-04
Abstract: 819,796. Feeding sheets. WEAN EQUIPMENT CORPORATION. March 4, 1957. No. 7066/57. Class 100(1) Sheet-separators; pusher feeds. In sheetfeeding apparatus a sheet is lifted from a pile or support by suction means and is then pushed horizontally away from the suction means, the suction means being supplied with gas under pressure to destroy the suction effect and to blow the sheet away from the suction means at the moment the sheet is pushed away from the suction means. As shown, the suction separator 2 is attached by a rod 3 to a piston 4 in a cylinder 5 connected to a source of air under pressure to raise and lower the separator 2. The separator is connected by a flexible pipe 6 to a conduit 8 which communicates, alternately, with a source 12 of compressed air through a valve 11, and with a source 10 of vacuum through a valve 9. The valves 9, 11 are closed and opened, respectively in the positions shown, by springs acting on pistons 15, 19 in cylinders 16, 20. When, however, compressed air is supplied to the cylinders 16, 20 through pipes 17, 21 though a solenoid-operated valve 23, the valve 9 is opened and the valve 11 is closed. When a sheet or a portion thereof is lifted from the top of a pile by the separator 2, it is engaged by a pusher member 30 to move it horizontally to a position where it is engaged by sheet-forwarding means such as feed rollers. The pusher 30 comprises a U-shaped member 31 within which is a mass of rubber &c. 32, and is carried on the rod 29 in a position 28 in a cylinder 27 to which air under pressure is supplied. A switch 33 controlling a solenoid 26 on the valve 23 is adapted to be operated by the engagement of a shoulder 35 on the rod 29 with a switch arm 34. In operation, with the separator 2 fully raised and gripping a sheet, the solenoid 26 is energized, the valve 9 open, and the valve 11 closed, the pusher 30 approaches the edge of the raised sheet, Just before the pusher engages this sheet, the shoulder 35 operates the switch 33 to de-energize the solenoid 26. The valve 9 is now closed and the valve 11 opened, so that compressed air replaces suction in the separator 2 and the sheet is released quickly and repelled. Thus the pusher 30 can engage and push the raised sheet without opposition from the suction separator 2, and the face of the latter is not subject to wear. Several suction separators 2 may be used.
Patent GB-282841-A (GB)
Title: Improvements in regenerative furnaces
IPC: F28D17/04
Filed: 1927-01-14
Abstract: 282,841. Beeston, W. G. Jan. 14, 1927. Regenerators.-In a regenerative furnace of the type having a unidirectional flame, in which the air blast and waste gases pass alternately with. out reversal of direction through a pair of regenerator chambers d, e disposed beneath the furnace chamber a, the regenerator chambers are connected at both ends to a pair of valve, chambers f, w, flues k, o lead from each end of the furnace chamber to the valve chambers, an air blast conduit i leads into the valve chamber f and a stack flue n leads from the other valve chamber m, the valves g, r in the valve chambers. being simultaneously reversible. With the valves iu the position shown, air from the conduit i passes through the regenerator chamber e to the flue o which opens into the furnace chamber in the vicinity of a gas port p, while the waste, products of combustion pass through the flue k and are directed by the valve g into the other regenerator chamber d and thence bv the valve r into the stack flue n. On reversal, air passes. through the chamber d and waste gases through the chamber e. Reference has been directed by the Comptroller to Specification 11402/85, [Class 72, Iron &c.].
Patent GB-1500346-A (GB)
Title: Fire-arm
IPC: F41A5/02
Filed: 1975-02-20
Abstract: 1500346 Fire arms INDUSTRIE-WERKE KARLSRUHE AUGSBURG AG 20 Feb 1975 [21 Feb 1974] 7102/75 Heading F3C A fire-arm for firing cartridges 11 without cartridge cases comprises a breech part 1b and a cartridge chamber 1a formed integrally with a barrel 1 and accommodated in a casing 2, and first and second helical springs 5, 8 are provided one behind the other around the barrel 1 which act respectively to damp the forward movement and the rearwards movement of the unit 1, 1a, 1b as a result of breech closure and recoil respectively. A firing pin 13 is axially guided in a bolt 14 and the firing pin 13 is pushed rearwardly by gas pressure in the cartridge chamber 1a at the time of firing to retract a locking slide 16; by means of a pin-camming slot arrangement the bolt 14 is thereby rotated to release an interlock between lugs 14a on the bolt 14 and corresponding recesses 1d inside the breech part 1b The bolt 14 moves rearwards overriding a magazine or supply shoot 12 and then moves forwardly whereby a new cartridge 11 is transferred to chamber 1a.
Patent GB-929481-A (GB)
Title: Hydraulic mechanism
IPC: F15B13/04
Filed: 1962-02-23
Abstract: 929,481. Hydraulic apparatus. NEW YORK AIR BRAKE CO. Feb. 23, 1962 [April 3, 1961], No. 7107/62. Class 69 (2). An hydraulic control system for the bucket of a loader comprises a double-acting differential-area piston motor 11, a fourposition control valve 12 having an element 19 movable to " hold " and " float " positions, a first conduit 18, 27 and a second conduit 17, 28 connecting the motor to the control valve, a check valve 79 in the first conduit between the control valve and a transverse conduit 29 which joins the first and second conduits and is normally closed by valve means 41 opened by means responsive to the movement of the control element 19 to the " float " position, and means 91 responsive to a pressure in the second conduit greater than that in the first conduit for opening the check valve 79. The valve means 41 is normally urged against a seating 37 closing the passage 29 by a spring 47 when the pressure in the first conduit 27 is equal to that in a space 50 connected by a conduit 109 to a chamber 103 which is closed when the element 19 of the control valve is in any of its positions other than the " float " position, the opposed surfaces of the valve 41 being interconnected by a restricted passage 44. When the element 19 is moved to the " float " position, the conduits 17, 18 and conduits 14, 16 leading to a pump 13 and reservoir 15 are interconnected and, since the pressure in conduit 17 equals that in conduit 18, a spring 84 closes valve 79. The end 19<SP>1</SP> of the control element opens a valve 111 to connect the chamber 103 to exhaust which results in a pressure differential across the restriction 44, moving valve 41 to connect the first conduit to the second conduit so that fluid expelled from a chamber 11a of the motor as a result of the load on the motor can pass through the conduit 29 and a check valve 56 to the second conduit and chamber 11b of the motor, bypassing the control valve 12. Excess fluid from the chamber 11a passes through conduit 17 to the tank. The housing 21 for the check valves may be mounted on the motor and the shortened path for the fluid to pass from one end of the motor to the other under float conditions prevents cavitation occurring in the fluid. When the element 19 is moved to the " raise " position the valve 111 seats and, when the pressure across the valve 41 is equal, the spring 47 seats the valve to close the conduit 29 and fluid from the pump passes through check valve 79 to the chamber 11a of the motor. In the " hold " position of the element, the equal pressures in conduits 17 and 18 permits the spring 84 to close valve 79 so that the pressure in chamber 11a of the motor as a result of the load thereon is not effective on the control valve 12. With the element 19 in the " lower " position, the pressure in conduit 17 is greater than that in conduit 18 and acts on a plunger 91 to open valve 79 and connect chamber 11a to the reservoir. The control valve 12 may be of the type described in Specification 859,658.
Patent GB-1255709-A (GB)
Title: High voltage switch gear
Inventor: HARTIG ALFRED
IPC: H01H31/20
Filed: 1969-02-10
Abstract: 1,255,709. Arc extinguishing. RUHRTALELEKTRIZITATSGESELLSCHAFT HARTIG & CO. 10 Feb., 1969 [9 Feb., 1968; 24 April, 1968], No. 7172/69. Heading H1N. In a load-break isolating switch the pivoted main contact 3, Fig. 2, carries an auxiliary contact 7 attached through an energy storage means 8 such as a spiral spring whereby on opening the main contacts 3, 5 the auxiliary contact 7 is initially held by its fixed contact 9 and is then released so that it moves rapidly to the open circuit position. The auxiliary contact may be resilient and of increasing resiliency along its length. It may be covered by insulating material and have a tapered hollow section. In a modification the contact 9 comprises a tube carrying a flat contact blade. The main and auxiliary contact may also be coupled by a resistive element.
Patent GB-1030811-A (GB)
Title: Silver halide photographic emulsions
Inventor: DICKINSON HAROLD OWEN
IPC: G03C1/043
Filed: 1964-02-20
Abstract: 1,030,811. Photographic materials. ILFORD Ltd. Feb 18, 1965 [Feb 20,1964], No.7181/64. Heading G2C. Photographic materials of increased speed comprise at least one layer of a silver halide emulsion, the said emulsion or a water-permeable layer adjacent thereto, containing as an additive a siloxane-oxyalkylene copolymer. Suitable polym mers are described in Specifications 802,688; 880,022; 793,501; 804,369 and 916, 561.
Patent GB-920086-A (GB)
Title: Blow and squeeze moulding machine
IPC: B22C15/28
Filed: 1960-03-01
Abstract: 920,086. Moulding-machines. OSBORN MANUFACTURING CO. March 1, 1960 [April 9, 1959], No. 7230/60. Class 83 (1). A blow and squeeze moulding machine comprises a vertically reciprocable mould table, a squeeze head mounted above the table so as to be capable of fitting with the flask, means for blowing sand in the flask, drive means for elevating and lowering the table, and control means for stopping elevation of the table when a predetermined squeeze pressure has been reached. The table 52 is vertically reciprocabl by an hydraulic piston rod 53 and carries the pattern 60 and a vibrator 61. A flask 72 is moved into the machine on rollers 70, and on upward movement of the table is carried into contact with a fill frame 73, spring-urged downwardly on guide rods 76. The fill frame surrounds the blow-squeeze head which comprises a sand reservoir 12 with an inner perforated sleeve 13, and outlet with divergent nozzles 25, and an annular diaphragm 22 backed by a fluid under pressure. The reservoir is filled from a hopper 32 having its outlet controlled by a piston actuated slide 38, which during the blow seals the top of the reservoir 12 by means of an interposed inflatable sealing ring 46. The hydraulic system for raising and lowering the table 52 includes two pumps, one of large volume, low pressure, the other small volume, high pressure, the arrangement being such that the table rises rapidly to the sand filling position and after filling is moved slowly at increased pressure against the squeeze head. The downward movement of the table is initially slow, and then more rapid. Specification 920,086 is referred to.
Patent GB-679451-A (GB)
Title: Improvements in or relating to measuring instruments
IPC: G01D5/04
Filed: 1951-03-28
Abstract: 679,451. Bourdon pressure gauges; indicating-apparatus. AKTIEBOLAGET NORDISKA ARMATURFABRIKERNA. March 28, 1951 [March 29, 1950], No. 7254/51. Classes 106 (ii) and 106 (iv). A measuring instrument in which motion is transmitted from a measuring element to a shaft through a connecting rod mounted eccentrically on the shaft is characterised in that the shaft is in the form of a crank-shaft with the pin of which the connecting rod is connected through a lever arm which is rotatable in relation to the pin and capable of being locked thereon. The invention is shown applied to a Bourdon pressure gauge comprising a squaresection bolt 1, preferably of brass, to which is attached the Bourdon tube 2 and, by screws 10, a dial 3 and bearing plate 7, which is spaced from a second plate 8 by distance pieces 9 in the form of bolts secured to the plates by riveting, the plates 7, 8 forming bearings for a pointer shaft 6, in the form of a crank-shaft. The free end of the Bourdon tube 2 is attached by a member 15 to a connecting rod 12 which is secured to the pin 11 of the shaft 6 by a yokepiece 13 which is rotatable on the pin 11 and can be locked in desired position by a screw 14 so that the distance between the centre line of the shaft 6 and the bearing pin 16 of the rod 12 can be adjusted to regulate the extent of movement of the pointer. None of the parts are mounted directly in the casing 4 which has a cover glass 4a and such a gauge can resist strong external vibration. In such a case it is desirable to provide oil-saturated felt rings 17 on the shaft 6 and member 15. The parts 6, 7, 8, 12 are preferably of stainless steel.
Patent GB-1092822-A (GB)
Title: Electrical circuit assembly
IPC: H01R12/50
Filed: 1965-02-19
Abstract: 1,092,822. Circuit assemblies. STANDARD TELEPHONES & CABLES Ltd. Feb. 19, 1965 [Feb. 20, 1964], No. 7255/65. Heading H1R. [Also in Division H2] A plug board, Fig. 2 (not shown), which receives a number of plug-in units (11, 12) incorporating components to form, e.g. transistor amplifier stages, Fig. 1 (not shown), comprises an earthed nickel-silvered aluminium plate 13, Fig. 10, supply conductors printed on a board 45, and a sheet 40 of material having a high dielectric constant to create a decoupling capacitance between the supply conductors and the plate 13. For each plug-in unit, the board has two rows of pins 54 mounted in an insulating plate 51 and retained by a plate 58. All the layers of the board are held together by screws 62. The rear ends 56 of the pins may be connected by pieces 57 to the plate 13 or soldered either to the supply conductors on the board 45 or to printed circuits carried by boards 64, 66, 67 by which they may be connected to the pins for other plug-in units. The latter boards are separated from the plate 13 by a sheet 70 of insulating material having a low dielectric constant. The unused parts of the ends 56 of the pins may be cut off. Plug-in units.-The components 28, Fig. 6, of each unit are interconnected, and connected to edge perforations 31, by a printed-circuit board 29. The assembly is then dipped in aluminium oxide 30, enclosed by aluminium shielding 26 and secured in a nylon box 14, the perforations being connected to the ends of resilient blade contacts 24 passed through holes 23 in the edges of the box. An epoxy resin layer 32 is applied, and a handle 33 is soldered to the sides 27 of the shielding.
Patent GB-1417326-A (GB)
Title: Four-stroke spark ignition engine with pairs of communicating combustion chambers
IPC: F02B75/18
Filed: 1973-02-14
Abstract: 1417326 Four-stroke engines COMPAGNIE FRANCAISE DE RAFFINAGE 14 Feb 1973 [15 Feb 1972] 7280/73 Heading F1B Pairs of cylinders 5, 6 have communicating combustion chambers, a common exhaust valve 22 and respective inlet valves 17 and 19 through which a first carburetted fuel/air mixture and a second leaner carburetted mixture or air is fed to the respective cylinder. The piston 8 reciprocates in advance of the piston 9 by, e.g. 25 degrees of crank-shaft rotation, and the spark plug 23 ignites the mixture in the cylinder 5 as the piston 8 approaches T.D.C. As the piston 9 approaches T.D.C. the leaner mixture in the cylinder 6 is added to the ignited mixture. The fuel/air ratio of the mixture fed through the inlet passage 16 may be between 1.4 and 0.85 times the stoichiometric ratio and the mixture through the inlet passage 18 up to 0.55 the stoichiometric to provide an overall fuel/air ratio of 0.7 the stoichiometric.
Patent GB-271202-A (GB)
Title: Improvements in thermostatic temperature indicators
IPC: F01P11/16
Filed: 1926-03-16
Abstract: 271,202. Barker & Co. (Coachbuilders), Ltd., and Nutt, H. Y. March 16,1926. Alarms operated by expansion of liquids; alarms for parts of machinery. - The temperature sensitive element of an alarm device for the cooling system of a motor-car engine is mounted directly in the flow pipe in proximity to the cylinder jacket between the jacket and the radiator. The element described comprises a plug 6 which screws into the flow pipe and houses a rod 8 and an expansible element 7 consisting of mercury filled discs. Into the upper end of the plug is screwed a sleeve 12 which guides a contact 10, held downwardly by a spring 16. Upon expansion of the element 7 at a predetermined temperature of the cooling water, the rod 8 contacts with the contact 10 to close at electric circuit, which includes a lamp or buzzer on the dash-board. The temperature of operation is varied by screwing up or down the sleeve 12. Specification 18685/05 is referred to.
Patent GB-569478-A (GB)
Title: Improvements in and relating to endless conveyors
IPC: A23G7/00
Filed: 1943-05-10
Abstract: 569,478. Conveyers. TUNLEY, A. A., and BAKER PERKINS, Ltd. May 10; 1943, No. 7394. [Class 78 (i)] To provide and close a gap between two conveyers 3, 6 to allow for the passage of crossbars 8 a rotatable bridge 4 is fitted between the abutting ends of the conveyers. Fig. 1 shows a bridge 4 of rectangular section pivoted about a medial shaft 9, and adapted to be turned by the passage of the bars 8 as they are pushed along guide channels 17, 18 by abutments 22 on endless moving chains 6. The bridge is locked in its horizontal positions by a latch 14 pivoted at 13 and provided with a notch 15 engaging one of two pins 12 projecting off-centre from one end of the bridge, a spring 24 biassing the latch into lock. The bridge is freed by an oncoming bar 8 striking a latch finger 16 which projects into its path, and a hump 20 in the channel 18 forces the emerged rod 8 down to press on the bridge 4 and force its pin 12 to snap into the notch 15 past a slope 26 on the latch. The bridge may alternatively be of triangular cross-section, and may be positively operated by cams or toothed gear. The bars 8 may support aprons 11 which trail after the bar through the narrowed gap 7 and receive articles off the conveyer 3 to carry them over a table 1 to the far end of conveyer 6, where a similar rotary bridge member is provided. Specifications 553,133 and 553,309 are referred to.
Patent GB-362269-A (GB)
IPC: G03B1/42
Filed: 1931-03-10
Abstract: 362,269. Kinematograph apparatus. KODAK, Ltd., Kodak House, Kingsway, London. -(Assignees of Riddell, W. A. ; 333, State Street, Rochester, New York, U.S.A.) March 10, 1931, No. 7405. Convention date, March 12, 1930. [Class 97 (i).] Film-guiding members are movable into and out of film-threading position, and means is provided for varying the speed of the driving motor as and when the members are moved. As shown, guide members 18, 28, pivoted respectively at 19, 29, close on to a fixed member 17 during threading, and, by the engagement of lugs 48, 49 with noses 50, 51 on a gate member 21, move the member 21, against the action cf a spring 27, into open position. The parts may be placed in threading position by pulling a knob 63 downwards from the position shown in Fig. 1 to that shown in Fig. 2, thereby turning the member 28 about its pivot 29 ; the movement, through a link 45, an arm 35 pivoted at 36, and a stud 33, also turns the member 18, and causes a contact 38 to bridge terminals 39, 40, to complete the circuit of a shunt resistance 43 for the motor 14, and reduce the motor speed. The arm 47 carrying the knob 63 is held during threading by a notch 56 in a spring-pressed detent 55 which is mounted on a pivot 57 and has a nose 59 projecting into a fixed film guide 61. The film to be threaded is drawn from a spool 9, and passed into a fixed guide 16 ; it is fed by the sprocket 15 to and from the gate, and in its passage through the guide 61 raises the nose 59 to free the arm 47 and permit a spring 52 to restore the parts to normal running position. The circuit containing the resistance 43 is thus broken and the motor speed is restored to normal. A modification is described in which movement of the guide members operates a rheostat through a toothed quadrant and pinion to put resistance in series with the motor to reduce its speed gradually.
Patent GB-177381-A (GB)
Title: Improvements in and relating to feeding devices for roller mills
IPC: B21B39/00
Filed: 1921-03-08
Abstract: 177,381. Turner, P. March 8, 1921. Roller mills. - Relates to feeding- devices for roller mills of the kind ir which two feed-rolls mounted in different vertical and horizontal planes with the lower roll driven faster than, and through worm gear from, the upper roll, are employed. A worm D on the shaft C of the lower roll B meshes with a worm-wheel E on a sleeve F carried by a short shaft G, and a worm H secured to the sleeve meshes with a wheel J on the shaft K of the upper roll A, the shaft G being secured to the bottom of a gear-box R in which the worms D, H and the wheels E, J are contained. The shaft C is driven through a clutch N, O from a shaft M carrying a pulley L driven from the extended end of the bottom roll of the mill. The clutch is operated by means of a cam P operated by a lever Q which is connected to the lever that separates the grinding-rollers. The invention is specially applicable to feeding-devices of the kind described in Specification 6501/06.
Patent GB-1381826-A (GB)
Title: Sweetened compositions for oral use
IPC: A61Q11/00
Filed: 1973-02-15
Abstract: 1381826 Sweetening agent PROCTER & GAMBLE CO 15 Feb 1973 [16 Feb 1972] 7504/73 Heading A5B An oral composition (as defined) comprises as sweetening agent from 0.01% to 0.5% by weight of L-aspartyl-L-1, 4-dimethyl-pentylamide. The compositions may be in the form of, e.g. toothpastes, toothpowders, mouthwashes, mouth sprays and the like and may contain antibacterials such as chlorhexidine, cetyl pyridinium chloride and domiphen, as well as other conventional additives.
Patent GB-177164-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B62D21/10
Filed: 1922-03-15
Abstract: 177,164. Zaparka, E. March 16, 1921, [Convention date]. Luggage racks and holders.-Comprises a construction of road vehicles, particularly motorcars, in which the axles are directly secured, preferably through the medium of springs, to a frame which forms the body of the vehicle and, if desired, also the engine bearer. At least the lower part of the frame is pressed from a single plate of sheet metal bent upwardly at both sides to form supports 1 terminating in steps 2, made integrally or attached. At the rear a recess is formed for the transverse axle spring 7, Fig. 2, and a luggage carrier or receptacle is formed by a bent sheet-metal plate 8.