baber/WOPTO huggingface dataset:
Patent GB-266953-A (GB)
Title: Improvements in and relating to feed water heaters
IPC: F22D1/42
Filed: 1925-08-31
Abstract: 266,953. Blunt, E. H. Aug. 31, 1925. Regulating delivery by by-passes and throttle valves. -A feed water heater for locomotives comprises a heater vessel with means for admission of steam and two pumps alternately operable to pump cold water into the heater, where it condenses the steam, and to withdraw the water, one pump pumping cold water into the vessel while the other pump is withdrawing hot. water and vice versa. The pump has cylinders 28, 31, Fig. 13, handling cold water on the upper side of the pistons 21, 22 and hot water below. They are made to begin their strokes in opposite directions by means of a synchronizing gear operating the main steam valve 95 controlling steam to the corresponding steam cylinders 80, 81. The quantity of hot water handled at each stroke is larger than that of cold water on account of the steam condensed in the direct contact heater. The ratio of hot to cold may be varied within limits by surrounding the piston rods 84, 85 by sleeves 85, which bed on to packing 88 and are provided with centralizing ribs. A suitably sized gland 45 is used with different sizes of sleeves 86 in both the steam and pumping cylinders. The cold water valves 25, 26, Fig. 9, are arranged in separate chambers 23, 24 mounted at the side of one cylinder 28, the chamber communicating with annular enlargements 33 of the cylinders. To cushion the pistons at the end of the upstroke each piston has a flange 42 which coacts with a stationary flange 43 having ports 46, causing a restricted passage to the annulus 33. The hot-water inlet-valves 59, Fig. 42, are arranged in a separate lower chamber 55, secured to the under side of the cylinders. The hotwater outlet-valves 65, 66 are arranged in chambers 61- - 64, Fig. 11, connected to the check valve of the locomotive. The downward stroke of each piston is checked by the gradual closing of the outlet ports 74a in the wall of the cylinders leading to the outlet valve chambers. The pistons may have ports 76, to permit the escape of air. Beneath each valve is a screwed plug 55a with apertures sealed by flexible material and removable closures, for the insertion of a pin or prong to engage and lift the valve above it in order that the condition of the valve may be judged. Regulation of the speed of the pump can be effected by a live steam control valve operated by the pressure of steam in the heater or bv throttling the cold water delivery under a similar control. In addition separate floats may control hot and cold water'by-passes back to their respective suctions while hand-controlled bypasses may also be fitted for adjusting the correct operation of the pump or for accommodating derangements.
Patent GB-442010-A (GB)
Title: Ventilating buildings, vehicles and ships
IPC: F24F7/007
Filed: 1934-07-26
Abstract: 442,010. Screw fans. TIGHE, M. D., Ashley Lodge, Harold Wood, Essex. July 26, 1934, No. 21819. [Class 110 (i)] A ventilating fan is mounted on a track so as to move about a room. The fan moves either backwards and forwards along the track or in the same direction round an endless track. Two or more fans may travel on the same track or on separate tracks. The fans may have oscillatory or rotary freedom and be driven either by the fan motor or separate means.
Patent GB-153998-A (GB)
Title: Improvements in the construction of safes
IPC: E05G1/024
Filed: 1919-09-05
Abstract: 153,998. Oakden, A. H. Sept. 5, 1919. Safes.-A safe A is constructed by pouring cement into a mould, of which the door B, previously cast, forms part, metal reinforcing D, and the hinges E and F, being held in the mould, so that the door is inseparably hinged. Holes C are left to take bolts L and K, and a recess is left in the door to take the locking mechanism, the whole of which is attached to a metal plate O secured to the inside of the door at P, P. The body of the safe may be cast first, the door being subsequently moulded in position.
Patent GB-986780-A (GB)
Title: Adjustable contour roll
IPC: B65G39/00
Filed: 1963-05-31
Abstract: 986,780. Rollers. T. A. FOX. May 31, 1963 [June 8, 1962], No. 21861/63. Heading F2U. [Also in Division B8] An adjustably contoured roller for roller conveyer lines handling bars or plate, strip conveyer lines, belt wrappers and strip guide rolls, comprises a roll shell 10 the outer concave surface 11 of which is covered by an elastic sleeve 21 secured at each end to rings 13 movable, axially outwards, to stretch the sleeve and selectively vary the roller contour. As shown, the sleeve 21 is freely movable over the surface 11 of the shell and in Fig. 2 (not shown) is adhesively secured to the mid-portion only thereof to maintain a raised centre portion on the outer surface during sleeve stretch for tracking control of strip material, the rings 13 being outwardly thrust by pistons 19, arranged in pressure chambers 16 selectively supplied with pressure fluid delivered through a shaft 14 on which the roll shell 10 is journalled. In Fig. 3 (not shown) each end ring is moved by a pivotally mounted arm, acting through a yoke connection.
Patent GB-894528-A (GB)
Title: Improvements in electrical systems for reproducing recorded signals
IPC: H02P5/52
Filed: 1960-06-22
Abstract: 894,528. Automatic speed control systems. AMPEX CORPORATION. June 22, 1960 [Aug. 11, 1959], No. 21909/60. Class 38 (4). In a magnetic recording and reproducing system, a signal indicating the speed of a rotating head assembly is derived from a photoelectric cell and applied to limiter 53, through phase-splitter 54, to a phase-sensing circuit 56. The signal from a control track on a magnetic tape is applied to limiter 57, thence to a second limiter 58, through phase-splitter 59, to the phase-sensing circuit 56 which provides an output signal to reactance tube 61. This tube controls the frequency of oscillation of a Wien bridge oscillator 63 whose output is passed through amplifier 64 and is applied to a capstan motor drive amplifier 37. The oscillator functions at a predetermined basic frequency which is slightly modified by a correction signal from the phase comparator. In this manner, the capstan is rotated during play-back in the same relationship to the rotating head assembly as it did during the recording process. The signal from the control track is also applied to voltage doubler circuit 66, thence to amplifier 67, and to relay-coil 68. In the absence of a control signal, the contact 69 is moved to earth the input to the reactance tube so that the oscillator operates at its basic frequency. This prevents hunting of the capstan motor and loss of tracking during reproduction. When the sliders of potentiometers 99, 100, are in the positions shown, the frequency of the oscillator is controlled by the reactance tube. Displacement of the sliders allows the speed of the capstan motor to be controlled manually for synchronizing the machine with other machines. The potentiometers each have a dwell position to which they are returned after the synchronizing operation.
Patent GB-479527-A (GB)
Title: Improvements in or relating to an electrical measuring apparatus
IPC: G01R19/00
Filed: 1936-08-10
Abstract: 479,527. Measuring resistances ; R÷ntgen-ray apparatus. NEMET, A. Aug. 10, 1936, No. 21945. Convention date, Aug. 26, 1935. [Class 37] [Also in Group XX] In a thermionic valve device, for measuring high resistance or ionization currents in an ionization chamber, of the kind in which the resistance or chamber is connected between the grid and cathode of the valve and serves to discharge a potential applied to the grid, the time of the discharge being measured, the value of the voltage applied across the ionization chamber or the high resistance differs by a predetermined amount from the grid-cathode voltage. This amount may be constant and the arrangement disclosed enables a voltage higher than the voltage difference between grid and cathode to be connected across the resistance to be measured or the ionization chamber. The resistance R or ionization chamber is connected in one arm of a bridge, known resistances W1, W2, and a condenser C forming the other arms of the bridge. The battery B is connected between the points L, S and the cathode of the valve E to the point K and the grid to the point P. A tapping V from the resistance W2 is also connected to the point P and the anode voltage is obtained from a tapping A on the resistance W1, the anode circuit including a coil r, controlling a relay s, the contacts of which are in the line connecting the tapping V and point P. In operation, a current flows in the arms III, IV charging the condenser C until the point P becomes positive with respect to the cathode, when a current flows through the plate circuit of the valve and the coil r closes the contacts of the relay s to connect the point P to the tapping V, the potential of which is negative with respect to the cathode. This discharges the condenser C and stops the plate current, so that the relay contacts are opened and the cycle recommences. The resistance or the degree of ionization is proportional to the time which elapses between successive closures of the relay contacts, and a relay in the plate circuit may operate visible or audible signals and a counting device. The number of operations is then directly proportional to the ionization or inversely proportional to the value of the resistance. The device may be used for measuring X-ray doses.
Patent GB-1428825-A (GB)
Title: Release agents for adhesive tapes
IPC: C09J7/38
Filed: 1973-05-08
Abstract: 1428825 Additives for lubricants NORTON CO 8 May 1973 [6 June 1972] 21946/73 Heading C5F [Also in Divisions B2 and C3] A lubricating oil comprises a viscosity increaser and pour-point depressant being a poly(amideacid) or poly(amideimideacid) having recurring units (1) and/or (II) where A is a C 2-15  radical, B is a C 4-30  radical, R 1  is H or C 1-30  alkyl and R 2  is C 12-30  alkyl. Intrinsic viscosity may be # 0À04 when measured in tetrahydrofuran at 30 C.
Patent GB-1190366-A (GB)
Title: Improvements in or relating to Tensioning Devices for Chains, Belts and Like Driving Elements
Inventor: HOPKINS JOHN EDWARD
IPC: F16H7/08
Filed: 1966-05-17
Abstract: 1,190,366. Belt or chain tensioning devices. RENOLD Ltd. 11 May, 1967 [17 May, 1966], No. 21966/66. Heading F2Q. A belt or chain tensioning device comprises arms 13, 14 pivoted together on a hollow pin 15 and urged apart by a spring-pressed wedge member 23, the arm 13 carrying a slipper head 16 adapted to bear against the belt or chain, and the arm 14 bearing against a fixed structure. The wedge member 23 is slidably mounted on a spindle 21 attached to a bracket 22 which is mounted on pin 15. A rack 18 is secured to arm 13 and has serrations 19 which are engaged by serrations 27 formed on the wedge member 23. The surface of the member 23 contacting the arm 14 is curved. The device is bolted in position through hollow pin 15. In a modification, an arm 13a is formed with lugs 29, 31 having elongated holes through which a spindle 33 projects, and an arm 14a has a curved portion 34 so shaped that the wedging action is increased as the wedge member 23a moves closer to the head of spindle 33. Several modifications having means for cocking and locking the device in an energized state, i.e. with the helical spring fully compressed, are described. A pivoted tensioning strip may be utilized.
Patent GB-1220125-A (GB)
Title: Pressure regulating valves and hydraulic systems employing such valves
IPC: F15B11/02
Filed: 1968-05-09
Abstract: 1,220,125. Fluid-pressure servomotor systems. BELL AEROSPACE CORP. May 9, 1968 [May 12, 1967], No.22042/68. Heading G3P. A spring-biased three-way pilot valve 41 is responsive to the pressure difference between ports 16 and 17 to move the land 46 to one side or the other of (or to exactly cover) a port 45 so as to connect port 16 or 17 via a port 19 with a chamber 36 below a spring-biased valve member 21 which controls the flow from an inlet 12 to an outlet 13 via passage 14, ports 26, chamber 39 and ports 27. The spring-bias of valve 41 can be adjusted by nut 42 and is arranged so that a predetermined pressure difference is maintained between ports 16, 17. Port 16 is connected to the inlet and if that pressure rises land 46 moves to the left to uncover port 45 and allow inlet pressure to move the flow control valve 21 upwards so that the land at the top of chamber 39 uncovers more of ports 27 to permit increased flow which decreases inlet pressure, decrease of inlet pressure moves the land 46 to the right to connect chamber 36 with port 17 via port 49 and passages 50, 53 so that fluid can flow from chamber 36 lowering the valve member 21 and decreasing the flow to thus increase the inlet pressure. The ports 13 and 17 can be both directly connected to reservoir or the port 17 may be connected via a restriction. Alternatively the valve may be connected across a first hydraulic circuit to give priority thereto over a circuit connected to port 13 or it may be connected across a restriction to give a predetermined flow therethrough for supply to a hydraulic circuit. Normally the port 34 is connected to reservoir to prevent hydraulic locking of the valve member 21 but ports 34 and/or 17 may be connected to inputs which will modulate the flow through the valve and thus the regulated pressure.
Patent GB-1445203-A (GB)
Title: Flame cutting
IPC: B23K7/10
Filed: 1974-05-17
Abstract: 1445203 Flame cutting KJELLBERGEBERLE GmbH 17 May 1974 [21 Dec 1973] 22132/74 Heading B3V [Also in Division F4] The flame of a cutting torch 1 is surrounded by a diverging water mist screen 6, 7 produced with the aid of compressed air or other gas. In one embodiment, a hollow member 4 is secured around a flame cutter 1 by screws 3 passing through bores 16 and is formed of an inner ring 10 and an outer ring 11 defining an annular chamber 12. When compressed air and water are supplied into the chamber 12 through an inlet 13, a diverging ring 6, 7 of water mist jets issues from circumferentially spaced outlets 14 in the outer ring 11 so as to surround the cutting flame and reduce contamination by dust particles. In another embodiment, the water mist is discharged through ducts (37) (Fig. 8, not shown) in the inner ring (20) and a passageway (34) defined by inclined parallel surfaces (38, 39) of the rings (21, 20). The hollow member is adaptable to the diameter of the flame cutter by a split ring (22) (Fig. 4, not shown) positioned within the inner ring (21). In a further embodiment the outlets are defined by a removable slotted strip (40), (Figs. 9 and 10, not shown) positioned in a circumferential groove (42) in the outer ring (41). The water mist discharging through the slots (43) in the strip (40) is deflected by an adjustable wall (45). In a further embodiment (Fig. 12, not shown) three adjacent flame cutting jets (52-54) are screened by using only two hollow members and blocking off some of the outlets where the water mists (44, 56) would overlap.
Patent GB-276375-A (GB)
Title: Improvements in turn-tables for vehicles
IPC: B60S13/02
Filed: 1927-08-23
Abstract: 276,375. Siegrist, H. Aug. 23, 1926, [Convention date]. Turntables, electrical. - The electric motor operating a turntable for motor road vehicles is controlled by means of steering movements of the front wheels of the vehicle. Several pairs of arcuate structures 1, 2 mounted on rollers 5, 25 so as to move freely are arranged around the turntable 23, and are connected by arms 6 to switch levers 13. A vehicle on the turntable is placed so that its front wheels rest on one pair of the structures 1, 2 and when these wheels are turned the structures 1, 2 are moved in opposite directions and move the switch levers. The contact shoes 8, 9 co-operate with three slip rings 10, 11, 12 so as to constitute a reversing switch. Either continous or three-phase alternating current may be used. The structures 1, 2 are returned to their central positions when released by a spring.
Patent GB-1189890-A (GB)
Title: Emergency Locking Retractor for Safety Belts and the like
IPC: B60R22/405
Filed: 1967-08-24
Abstract: 1,189,890. Safety harness. FIRESTONE TIRE & RUBBER CO. 24 Aug., 1967 [20 March, 1966, No. 22189/69. Divided out of 1,189,889. Heading A3V. The subject matter of this Specification is identical with that described in Specification 1,189,889 but the claims relate to an acceleration sensing structure for locking the reels of safety belts and the like comprising a shaft rotatable with the reel, a cam keyed to the shaft which moves a clutch driver axially of the shaft upon acceleration of the shaft and a clutch plate which, when rotated by the clutch driver, causes the locking means for the reel to operate.
Patent GB-666807-A (GB)
Title: Improvements in and relating to methods of producing articles of elastic materials and articles produced by such methods
IPC: B29C33/00
Filed: 1949-08-26
Abstract: 666,807. Moulding rubber &c. articles. BAK, C. W. H. DEN, and LAUPMAN, R, R. Aug. 26, 1949 [Sept. 3, 1948], No. 22237/49. Class 87 (ii) A method of producing articles, e.g. the cushion shown in Fig. 1, from rubber and like elastic materials so as to have ribs 2. 3 or similar projections which gradually grow smaller at the edges of the article and thus furnish rounded off edges, is characterized, in that, on a mould 4 which is preferably heated and which is provided with recesses 5 for the ribs, a plate of unvulcanized rubber 6 is laid and subjected to pressure between the mould and a ram 9. The rubber in the marginal portions of the plate escapes laterally between the ram and the mould in such a manner that near the edges the pressure is smaller than closer to the centre, the quantity of rubber in the mould and/or the pressing time being so selected that the rubber does not entirely fill the recesses near the edges. The shape of the rounded edges may be varied by varying the pressure and the rate of heating. The ram 9 acts through a wooden platen 8 and an aluminium platen 7.
Patent GB-203696-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/14
Filed: 1923-09-05
Abstract: 203,696. Lancia & Co. Sept. 9, 1922, [Convention date]. Blocks acting on drums; transmitting mechanism.-Mechanism for applying the blocks of expansion brakes to the brake drum comprises rollers 12 loosely mounted on pivots 11 carried by a member 10 adapted to the rotated by the brake lever 5. When the brake is applied, the arms i carrying the blocks are forced apart by the engagement of ':he rollers 12 with projections 1<1> on the arms, the rollers 12 reducing friction. On release of the brakes, the reverse movement of the lever 5 is limited by the engagement of the projections 1<1> with arms 13 on the member 10.
Patent GB-1426582-A (GB)
Title: Sintering machines
IPC: B65G47/19
Filed: 1973-05-10
Abstract: 1426582 Automatic control of level KRUPP-KOPPERS GmbH 10 May 1973 [8 June 1972] 22438/73 Heading G3R In a belt sintering machine, the thickness of material on the belt is determined by a doctor blade, the thickness being sensed by a sensor, disposed behind the doctor blade in the direction of conveyance, to control the feedrate of material to the belt. As shown, the level of material 6 to a doctor blade 5 is maintained within predetermined limits by sensors 7, 8 positioned behind a recess in the blade 5 and which vary the drive to feedroller 1 if the limits are exceeded for a set time. The blade 5 is fixed to a vertically adjustable weir 2, and the sensors mounted on the weir using insulators 10. Any number of sensors may be used.
Patent GB-1397795-A (GB)
Title: Bumper bar assembly for motor vehicles
IPC: F16F9/48
Filed: 1972-05-12
Abstract: 1397795 Bumpers FICHTEL & SACHS AG 12 May 1972 [15 May 1971] 22448/72 Heading B7J [Also in Division F2] A bumper bar assembly for motor vehicles comprises at least one shock absorber acting on a bumper bar, the or each shock absorber comprising a piston-rod 2, Fig. 2, extending into a liquid-filled cylinder 1 and carrying a piston 3 affixed thereto by riveting at pin 13, the piston 3 separating two liquid chambers, one shown at 16 and the second defined between piston 3 and a displaceable boundary surface formed by an annular piston 5 floating on the rod 2 against the elastic resistance of a spring 7 (and being of negligible size as shown in the extended position of the shock absorber prior to an impact). On impact, piston 3 is moved by rod 2 away from piston 5 while liquid flows through throttled passage means formed by grooves 4 in the inner surface of the cylinder wall, into the second chamber, and the boundary surface formed by the floating piston 5 is displaced so as to modify the total volume of the two liquid chambers in response to the change in immersion volume of rod 2, the throttling effect of the passage means 4 being such that, after an initial increase, the force provided by the shock absorber remains approximately constant throughout the remainder of the piston stroke. The grooves 4 as shown are rectilinear and have straight, tapering sides and are of uniform depth, but they may be of various shapes such as curved grooves, or grooves 604, Fig. 6, of constant width, and depth varying parabolically in the longitudinal direction. In Fig. 6, a protective tube 622 is provided surrounding part of cylinder 601 and having a base 642, which carries the end of piston-rod 602 and which also acts as the base of an attachment part 640 having transverse apertures 644 to receive a securing pin for attachment to the bumper bar or a vehicle body. As an alternative to grooves in the cylinder wall, such as in Fig. 9 the passage means between the two liquid chambers may be formed by borings 950 in piston 903 which are normally covered by a valve plate 948 under the action of spring washers 947. On another form, Fig. 4, the piston-rod 425 is a hollow tube sealed at the piston by a plate 426. Further, as in Fig. 9, the floating piston 905 may be located within the rod 902 and the elastic resistance to its movement be supplied by a cushion of gas 955 instead of a helical spring. Other forms of valve to control passage means comprising borings in the piston are described with reference to Figs. 12- 16 (not shown).
Patent GB-950366-A (GB)
Title: Process for separating silanes
IPC: C07F7/20
Filed: 1961-06-21
Abstract: A chlorosilane mixture containing a dichlorosilane is dispersed in a dinitrile solvent to form a separate extract phase which is richer in dichlorosilane than the mixture, the dinitrile having the formula: CN-(CR2)a-Z-(CR2)b-CN where a and b are 0 to 3, Z is -CR2-, -CR2-N-CR2-, -CR2-S-CR2-, -CR2-O-CR2- or -CR=CR-, and R is hydrogen or an alkyl group.  The dichlorosilanes are of the formula R12SiCl2 where R1 is hydrogen or a hydrocarbon or halogenated hydrocarbon radical of up to 6 carbon atoms, not more than one R1 being hydrogen. Specified dinitriles are dicyano-butene, b -oxydipropylnitrile, b -thiodipropylnitrile, adiponitrile, b -iminodipropylnitrile, succinonitrile, gluteronitrile and b -(cyanomethoxy)-propylnitrile. An additional non-polar solvent which is immiscible with the dinitrile is preferably employed to wash the extract phase, e.g. paraffin hydrocarbons, cycloalkanes and hydrogenated aromatic hydrocarbons.  The method may be applied to fractional liquid extraction or extractive distillation.
Patent GB-583663-A (GB)
Title: Improvements in inductance coils as used in telecommunication systems
IPC: H01F17/08
Filed: 1944-11-15
Abstract: 583,663. Inductances. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and RHODES, C. Nov. 15, 1944, No. 22510. [Class 38 (ii)] A toroidal inductance coil for use in telecommunication systems has the inner and outer windings separated by a moulded insulating member split to enable it to be placed in position, whereby the difficulties of winding on insulating tape are avoided. The inner winding 13, shown split into two semicircular parts separated by fibre disc washers 15, 16 through gaps in which pass leads 17, is covered by pressed insulators of paper pulp 10, 11, 12, 14, coated on the inside with all adhesive such as phenolic varnish. Such insulators may be placed over the core and round the outer windings also.