baber/WOPTO huggingface dataset:
Patent GB-524092-A (GB)
Title: Improvements in or relating to internal combustion engines and method of operating the same
IPC: F02M69/00
Filed: 1939-01-21
Abstract: 524,092. Oil engines. HARPER, W. Jan. 21, 1939, No. 2166. [Classes 7 (ii), 7 (iii), 7 (iv) and 7 (vi)] Fuel is projected along the cylinder axis into a rapidly rotating body of air and remains out of contact with the cylinder wall, the air forming an envelope around the fuel. A charge of burning gas preferably projected along a diameter of the cylinder ignites the main charge. In the two-stroke opposed cylinder engine shown in Figs. 2 and 9, three main exhause valves F4 are opened when a piston 15 uncovers the air inlet ports B9. Air under pressure then passes from the crankcase 11 through apertures B3 in a transverse partition B2 in a skirt 16 on the piston and is heated by fins B6 before being delivered through spiral conduits B8 of decreasing cross-section to sets of ports B9 which are tangential to different circles coaxial with the cylinder. After closure of the ports B9 and the valves F4 a main fuel injector C1 delivers fuel axially into the central part of the rotating air stream, ignition being effected by a flame issuing from a separate combustion chamber D1 which contains two sparking plugs D7 arranged on opposite sides of a light-fuel injector D6. Just before the exhaust valves F4 are opened, an inlet valve D5 is opened to permit air from the crank-case to scavenge the chamber D1. During the compression stroke, a blower forces air through a valve into the crank-case and on the outstroke outlet valves E3 are opened to allow burnt gas under high pressure to force the air in conduits E1 past a manually adjustable grid valve (not shown) into the crank-case. The valves E3 are closed just before the burnt gases enter the crank-case. When the air inlet valve to the crank-case is open, a valve E5 is opened to permit the escape of burnt gases from the conduit. Valve gear. The three exhaust valves F4, the two high-pressure outlet valves E3, and the auxiliary scavenging valve D5 are operated from a combined gear and cam member 32, Fig. 8, which surrounds the fuel injector C1 and is driven by a worm 31 on a shaft 30 at a quarter engine speed. Two concentric series of cams 35EF, 35D spaced 90 degrees apart are provided on the upper face of the cam member 32 to operate the valves through levers actuated by rollers 39, Fig. 3, carried by plungers 38. The inner end of the lever 41E is arranged so that the valves E3 are operated before the valves F4: In a multi-cylinder engine, the valve shafts 30 of aligned cylinders have their adjacent ends connected by removable couplings and the timing of the valves may be adjusted by altering the position of a worm on a driving shaft. Cylinders cooling. The cylinders have water jackets 12 containing spiral baffles 13.
Patent GB-870147-A (GB)
Title: Improvements relating to fluid flow dividers
Inventor: WELLINGS RAYMOND JOSEPH
IPC: F15B13/02
Filed: 1958-01-22
Abstract: 870,147. Hydraulic apparatus. INTEGRAL Ltd. Oct. 29, 1958 [Jan. 22, 1958], No. 2172/58. Class 69 (2). A flow divider for mounting the flows of liquid from an hydraulic pump to a number of jacks or other loads in predetermined proportions comprises a body 6 having an inlet port 9 connected by individual channels to outlet ports 7, 8, each channel having a valve 11 associated with a flow control orifice 10, the valves responding to changes in the pressure drop across the orifices to maintain or throttle the flow of liquid through the channels. Any change in the friction in a jack causes a change in the pressure drop across the orifice 10 associated with that jack to vary the pressure acting on the inner end of its associated piston valve 11 and, by means of a passage 13, the outer end of the piston valve associated with the other orifice. A decrease in pressure drop across one orifice also causes a corresponding increase, and vice versa, in pressure drop across the other orifice to vary the pressure acting on the other ends of the piston valves, the changes in pressure causing the piston valves, which are urged by springs S towards the fully-open positions, to move a corresponding amount to maintain proportionality of flow between the channels. The proportionality is determined by the dimensions of the orifices and proportionality of flow to more than two loads may be maintained, a separate channel being provided for each load.
Patent GB-725945-A (GB)
Title: Succinimide compounds and method for obtaining the same
Filed: 1953-01-26
Abstract: The invention comprises substituted succinimides of the formula <FORM:0725945/IV (b)/1> wherein R is hydrogen or a methyl radical, and their preparation by reacting a -(o-chlorophenyl)-a -methyl succinic acid or its anhydride with ammonia or methylamine, and heating the intermediate product so obtained (which may be a half-amide, its ammonium or methylamine salt or the mono- or di-salt of the acid, depending upon the quantities of reagents taken) to a temperature between 100 DEG  and 350 DEG  C.  a  - (o - Chlorophenyl) - a  - methyl succinic acid is prepared from ethyl a -cyano-b -(o-chlorophenyl)-b -methyl acrylate by treatment with ethanolic potassium cyanide followed by acid hydrolysis.  The corresponding a - (o - chlorophenyl) - a  - methyl succinic anhydride is obtained from the acid using acetyl chloride.
Patent GB-616284-A (GB)
Title: Improvements in and relating to surface welding
IPC: B23K35/30
Filed: 1946-01-23
Abstract: An arc welding electrode has a core of mild steel or iron and a coating containing chromium or an alloy thereof.  The coating may consist of 5-16 per cent of fluorspar, 27-40 per cent of rutile, 18-40 per cent of limestone, 0-10 per cent of ferro-manganese, 5-13 per cent of ferro-silicon, and 10-30 per cent of ferro-chromium mixed with 5-15 per cent of a binder such as sodium and/or potassium water glass.
Patent GB-413376-A (GB)
Title: Improvements in circular looms for weaving
IPC: D03D37/00
Filed: 1933-01-24
Abstract: 413,376. Circular looms. BRITISH CELANESE, Ltd., and JABOULEY, J., 22, Hanover Square, London. Jan. 24, 1933, No. 2267. [Class 142 (ii).] Each shuttle of a circular loom is positioned within the warps by one or more vane wheels 22, Fig. 2, each of which makes rolling contact with a pair of flanged rollers 19, Fig. 1, on the shuttle body and holds a vertically mounted roller 24 against the rubber covered face 28 of a circular race 23. The rollers 19 are carried by spindles 17 rotatably mounted in ball bearings in vertical members 16 secured to the shuttle body and a connecting bar 27 supports the vertical spindle of the roller 24. The vane wheels are lubricated by a porous leather pad which is pressed against the periphery or against the face of each wheel. The bobbincarrying portions of alternate shuttles may be offset in different directions. Specifications 230,033, 285,435, [both in Class 142 (ii)], 396,758, and 413,377 are referred to.
Patent GB-446307-A (GB)
Title: Pin installation for well reamers
IPC: E21B10/30
Filed: 1935-01-23
Abstract: 446,307. Well reamers. HAMMER, O., 108, West Whittier Boulevard, Whittier, California, U.S.A. Jan. 23, 1935, No. 2278. Convention date, Jan. 31, 1934. [Class 85] In a well reamer, the body 10 has pockets 13 receiving rolling cutters 14 on pins 16 with offset ends 29, 30. At one end, an integral bushing 21 fits the body of the pin and the offset 29 and at the other end a bushing is provided in two parts 31, 32, fitting the body of the pin and the offset 30 respectively. Bushing 21 and bushing part 31 have flange, with flat sides engaging flats 26, 33, to prevent rotation ; the flats may be formed by milling arcuate grooves and welding metal inserts therein. The bushing part 32 is locked by a transverse pin 36a engaging grooves therein, the pin 36a being locked by a threaded plug. Washers 37, 38 have hooked flanges 40 engaging rebates in the bushing flanges to prevent relative rotation or axial movement. The Specification as open to inspection under Sect. 91 states that the pin mounting may be applied other than to well reamers. This subject-matter does not appear in the Specification as accepted.
Patent GB-1177772-A (GB)
Title: D.C. Stabilizers
Inventor: OLSSON CARL OLOF
IPC: G05F1/52
Filed: 1967-01-16
Abstract: 1,177,772. Automatic voltage stabilizers. C.O. OLSSON. Jan. 16, 1967 [Jan. 14, 1966], No.2309/67. Heading G3R. The output voltage of a D.C. stabilizer is maintained constant irrespective of variations in the input voltage by a plurality of paths each containing an electronic switching element, which is connected to common control means and has a potential difference between a pair of its electrodes different from that of the other element(s), the arrangement being such that only one element conducts at a time in response to a particular range of input voltage existing at that time. In the circuit shown in Fig. 1, triode valves V1, V2 respectively conduct according to whether the input voltage from a diode bridge D1---D4 is respectively within a lower or a higher range, each valve being controlled to maintain constant D.C. volts at output O, UT over a particular input voltage range by a control circuit comprising a potentiometer P1, P2, a reference source RS and an amplifier F. A Zener diode Z provides the different potential bias for the valves V1, V2. In Fig.2, three valves V1, V2, V3 are connected to tappings on the D.C. input supply L1, L2, L3, D, C and the different potential bias is supplied by adjustable resistors R1, R2, R3 connected to the valve grids. Fine control of the output voltage for small changes of input voltage is achieved by control of a transistor T through the amplifier F. The valves in both of the described embodiments may be replaced by transistors.
Patent GB-179590-A (GB)
Title: Improvements in levers and tumblers for use in locks
IPC: E05B55/00
Filed: 1921-01-18
Abstract: 179,590. Parkes & Sons, Ltd., J., and Minors, T. L. Jan. 18, 1921. Lock mechanism, lever-type.-In sheet-metal levers or tumblers in which one or more of the edges are bent up to give strength and form additional bearing-surfaces, the metal round the hole for the pivot is raised and also, in the case of a lever, the metal round the edges of the grating. The lower edge of such lever or tumbler is also provided with a flange, having a hole to receive the end of a spring. Fig. 1 shows a tumbler A pivoted at b, having a flange a<3> round the hole for the pivot pin, a flange a forming a bearing surface for the key, a strengthening- flange a<2> and a flange a<1> for co-operation with the spring. Fig. 4 shows a lever with flanged edges c, c<1>, c<2> and a perforated flange a<4> for receiving the end of the spring C. The pivot-pin hole and, if desired, the edges of the gating are flanged.
Patent GB-1141011-A (GB)
Title: Improvements relating to rotary lawn mowers
Inventor: WARD ERNEST NOEL
IPC: A01D34/74
Filed: 1965-01-20
Abstract: 1,141,011. Rotary-scythe mowers. WEBB LAWNMOWERS Ltd. 19 April, 1966 [20 Jan., 1965], No. 2409/65. Heading A1F. In a rotary-scythe mower, wherein the rear rollers (15) are motor-driven, the drive from the motor (12) is taken through a clutch and an endless belt or chain (27), to one of a pair of co-axial rear-rollers mounted on the free ends of arms (17, 18) pivoted about an axis parallel to that of the driving pulley (21) or sprocket of the power-drive, the arms being connected to pivoted arms carrying the front wheels of the mower so that simultaneous heightadjustment of the front and rear of the mower may be effected without interrupting the drive. The arms (36, 17, 18) carrying the front wheels and rear rollers are interconnected by links (38) and jointly connected to a common adjusting mechanism (49) on the mower-frame. The drive includes a cable-operated dog-clutch (23) and a belt-drive 27 passing around jockeypulleys (28, 29) which maintain constant belt-tension in all positions of adjustment. In a modification (Figs. 4 and 5, not shown) the dog-clutch is omitted and the drive is controlled by the jockey-pulleys which are combined into a single cable-adjustable unit as described in Specification 1,060,531. In this modification, the drive-casing constitutes one roller-carrying arm, the axis of pivoting being co-incident with the axis of the driving pulley.
Patent GB-1168392-A (GB)
Title: Lid Feeding Mechanism for Packaging Apparatus
IPC: B65B7/28
Filed: 1968-01-17
Abstract: 1,168,392. Feeding sheets. NATIONAL DAIRY PRODUCTS CORP. 17 Jan., 1968 [6 Feb., 1967], No. 2498/68. Heading B8R. In a packaging machine where lids are separated from the bottom of a stack of lids 71, Fig. 1 (plan view) by sliding a lid from the bottom of the stack, lifting means are provided which engage and lift at least a portion of the stack adjacent the bottom lid to ease the removal of the bottom lid. The lifting means comprises a slide 11 movable at right angles to the plane of the drawing to thereby move arms 51 and 53 rotatably around bushings 13 and 15 and also linearly in the direction of movement of slide 11 so that jaw members 61 and 63 move inwardly and upwardly to grasp and lift a pre-selected part of the stack of lids.
Patent GB-121849-A (GB)
Title: Improvements in and relating to Elastic Fluid Turbines.
IPC: F01D1/02
Filed: 1918-02-12
Abstract: 121,849. British Thomson - Houston Co., (General Electric Co.). Feb. 12, 1918. Axial-flow type; balacing moving parts. - A compact turbine comprises a high-pressure section 6 supplied with motive fluid by a pipe 16 and discharging into the parts 7, 8 of a divided lowpressure section arranged on either side of the section 6, the conduit leading to the section 7 being formed between the inner and outer casings 10, 22, while the exhaust housing 26, 27 is arranged and secured as shown. End pressure on the drum 9 is balanced by the fluid thrust on a ring 19. Specifications 18429/10 and 100,484 are referred to.
Patent GB-465538-A (GB)
Title: Improvements in or relating to joints for securing together tubular members and to method of making the same
IPC: E21B17/042
Filed: 1936-01-27
Abstract: 465,538. Screw-and-nut gearing. SPANG, CHALFONT, & CO., Inc. Jan. 27, 1936, No. 2520. Convention date, Feb. 19, 1935. [Class 80 (iii)] [Also in Group XXVIII] A screw joint for pipes, particularly oil well casing, comprises tapered screwthreaded members wherein substantially the whole of the thread has flat crest and root surfaces which are parallel to the axes of the pipes. The threaded portions of a socket 1 and spigot 2 are shown out of scale. The crest of one thread and the root of the other are cylindrical for a short portion at each end of the joint. The thread of the spigot vanishes into the cylindrical surface 17 on which the end of the socket thread bears. The socket is screwed up until its end abuts against the shoulder 22. The threads engage on one flank only, and the crest of one thread only is in contact with the root of the other. The flanks 19 of the threads are at an angle of not less than 80‹ to the axis of the pipes. Tapered sealing surfaces 30, 34 are of the same taper as the thread. The end of the spigot thread has a steeper taper 61. The taper of the thread and sealing faces is between one and two inches per foot.
Patent GB-1456136-A (GB)
Title: Microwave power accumulator
IPC: H03B7/14
Filed: 1974-01-18
Abstract: 1456136 Semiconductor microwave oscillators HUGHES AIRCRAFT CO 18 Jan 1974 [19 Jan 1973] 02531/74 Heading H3T A microwave power accumulator has coaxial oscillator circuits 10, Fig. 1 all spaced equally from an axis of a central power combining cavity 12, each coaxial oscillator circuit includes a negative resistance microwave diode 18 at one end and a termination 24, absorbing oscillations of frequencies which differ from the operating frequency, at the other end so as to generate microwave power which is free from spurious harmonics and the combined output power from the oscillator circuits is derived from a transmission line 16 positioned on the axis. Each diode 18 can be single or a plurality of IMPATT or TRAPATT diodes connected via a #/4 impedance transformer 20 to an inner conductor 22, the other end of which is connected to a ferrite terminating absorber 24. The impedance discontinuity produced by both the ferrite absorber 24 and by the interface 65, Fig. 3a at its end serves to reflect harmonics of the fundamental in proper phase to enhance oscillation and increase power and supress oscillations shifted in frequency from the resonant frequency of the cavity 12. The coaxial oscillators 10 are formed in a metal cover 38 and in an A1 housing 32 which has scalloped wall portions (60, Fig. 3b, not shown) to minimise the spurious resonances in the structure. Each coaxial oscillator 10 is tuned by two tuning screws 46, 48. The main cavity 12 is tuned by a central tuning plunger 54 adjustment of which is effected via a hole 61 in a locking screw 56 which secures a central portion 55 of the housing to a metal heat sink 34. Cooling ducts (not shown) are provided in the heat sink 34. Reference has been directed by the Comptroller to Specification 1,348,904.
Patent GB-536349-A (GB)
Title: Modulating system for carrier transmission and the like
IPC: H03C1/58
Filed: 1940-02-09
Abstract: 536,349. Modulating systems. STANDARD TELEPHONES & CABLES, Ltd. Feb. 9, 1940 No. 2534. Convention date, April 27, 1939. [Class 40 (v)] Comprises arrangements of rectifier bridge circuits for producing third order modulation, i.e. for producing a modulated wave of twice the frequency of the carrier input. As shown in Fig. 1, the signal source 20 is connected through a low pass filter 25 to the vertical diagonal 28, 29 of a bridge of rectifiers 16 ... 19, which. diagonal is also connected through a filter 26 to the output load 27. The rectifiers are poled to conduct current round the loop, and are biased in this sense by a battery 37 in one of the arms. The carrier is applied across the horizontal diagonal 30, 31. While the carrier voltage is less than that of the bias battery 37, as indicated at OA and at BC in Fig. 7, the bridge presents a low impedance Z across the points 28, 29 and no signal current passes to the load 27 ; whereas during the peaks AB, CD, &c. pulses of current pass to the load at twice the frequency of the carrier input. The load current contains neither the carrier frequency nor the pure second harmonic. The signal wave should be of low voltage compared with that of the biasing source and the carrier should be of still higher voltage. In a modification (Fig. 2 not shown) the vertical diagonal 28, 29 of the bridge is in series between the signal source 20 and the load 27. In Fig. 3 the signal source 20, the carrier source 21 and the load circuit 27 are all connected through suitable filters to the same diagonal 28, 29 of the bridge. The rectifiers are conductive from the vertical diagonal points 28, 29 towards the horizontal diagonal points 30, 31 and are biased in this sense by batteries 39, 41 in the vertical diagonal. Choke coils 35, 36, 40 prevent the signal currents from traversing the diagonals, the action being similar to that described above with reference to Fig. 7. The diagonal 28, 29 of the bridge may be placed in series between the two sources on the one hand and the load on the other (Fig. 4, not shown). In further modifications (Figs. 5 and 6, not shown), the rectifiers are arranged as in Fig. 1 except that the polarity' of the rectifiers 16 and 17 is reversed, and the biasing battery is connected in one of the lines so as to be in effect across the vertical diagonal 28, 29. With this arrangement, the bridge has high impedance to the signal current while the carrier voltage is less than the bias voltage, and low impedance during the positive and negative peaks of carrier voltage.
Patent GB-489621-A (GB)
Title: Improvements in or relating to grates for solid-fuel fires or combined solid-fuel and gas fires
IPC: F24C1/04
Filed: 1937-01-29
Abstract: 489,621. Firegrates. HELPS, G. Jan. 29, 1937, No. 2591. [Class 126] In a firegrate with a bottom 2 which can be rocked about its rear edge at 5 by a two-armed lever of which one arm 81 supports the front of the grate bottom and the other arm 9 is actuated by the hand or foot, a displaceable stop 11 normally limits the movement of the actuating arm under the weight of the grate bottom while allowing the grate to be rocked, but when displaced allows the lever to be moved and the grate bottom to be lowered. In the form shown, the lever pivots about a cranked part or spindle 8. This spindle 8 can be slid axially in a side member A, and may be guided between lugs either on a horizontal flange of the member A or on the bottom of the grate. A shoulder 13 on the stop 11 normally prevents this axial movement, but allows it when the stop is rotated about the pin 12. The grate bottom 2 is pivoted in the sides of the fireplace itself, or, as shown, in a stationary frame 1. The bars 3 of the bottom 2 interengage at the front with short fixed bars on the frame 1. The grate may also be made reciprocable laterally, by allowing play in its bearings and forming a slot in the front of the frame 1 to allow a poker to be engaged with a notch on the movable bottom 1. Specifications 489,620 and 489,627 are referred to. The Provisional Specification describes also a bar which is formed with projections at right-angles to it, and is horizontally reciprocable from side to side in slots in the sides of the fire, to remove ash at the front of the grate. The bar extends beyond the side members of the fire at each side, and has a notch at one end. A lug with a hole or hollow is provided on the same side of the fire. A poker is inserted into the hole or hollow in the lug and into the notch in the bar, and can be moved to reciprocate the bar. Specification 407,923 also is referred to.
Patent GB-1522910-A (GB)
Title: Top desiccation of root crop plants
IPC: A01M21/04
Filed: 1977-01-21
Abstract: 1522910 Killing the tops of root crops LASCO INC 21 Jan 1977 [29 Jan 1976] 02624/77 Headings Al and (E1F) Haulms of root crops are killed by the application of high voltage, without harming the crop. A voltage of 20kV at an energy density of 11-15 kw/foot width of crop being treated may be applied by vertical chains dragged behind a tractor 10-20 days prior to harvest. The ground may be watered prior to treatment. The electrical treatment may be combined with a chemical treatment.
Patent GB-489313-A (GB)
Title: Improvements in or relating to envelopes or the like
IPC: B65D27/16
Filed: 1937-01-29
Abstract: 489,313. Envelopes. DAHLHAUS, H. Jan. 29, 1937, No. 2698. Convention date, Feb. 7, 1936. [Class 146 (ii)] A self-adhesive envelope is made from a blank comprising a front panel 5, back panel 6, closure flap 4, side flap 2, and a side flap comprising two parts 1, 1a foldable about a line 7. With all the flaps and panels in the flap extended position, self-adhesive is applied at 8 to the panel 6, and to the outer face of the part 1 of the upper side flap. The flaps 2, 4 then have ordinary adhesive applied thereto, the upper side flap is folded inwardly about the crease line 9 and then the part la is reversely folded to cover the adhesive on the part 1, the panel 6 is folded and gummed to the flap 2, and the flap 4 is folded and gummed to the panel 6. When a letter is thrust into the envelope, the part 1a is pushed downwardly to uncover the adhesive on the part 1 which can be pressed into engagement with that on the panel 6 to seal the envelope. The parts 1, 1a are of equal size. In a modification, the part 1a can be longer than the part 1 so that it projects beyond the edge of the envelope to enable it to be grasped, whereby the flap can be readily pulled out to allow of the insertion of a letter in the envelope. Sealing is then effected by inserting the flap between the letter and the panel 6 to bring the two coatings of self-adhesive into contact. Specification 468,144 is referred to.