baber/WOPTO huggingface dataset:
Patent GB-408493-A (GB)
Title: Improvements in or relating to self-opening screwing die-heads
IPC: B23G5/12
Filed: 1933-07-29
Abstract: 408,493. Screwing die - heads. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Geometric Tool Co. ; Blake Street, New Haven, Connecticut, U.S.A.) July 29, 1933, No. 21401. [Class 83 (iii).] In a self-opening screwing die-head chasers 33 are radially movable in a body 28 by means of a rotary cam plate 37 which is locked in the cutting position by a plunger 49 engaging a step 47 on a segmental block 43 adjustably attached to the cam-plate. Adjustment of the cutting size is effected by two tangential screws 46 screwing in the cam-plate and engaging a pin 44 projecting from the block 43. The body 28 is formed with a hollow shank 27 slidable within a holder 21, 22 attached to a turret or other support in a machine and is maintained in the axial position shown in the Figure by means of springs and plungers acting axially on the holder 22 in opposite directions. The plunger 49 is slidable within a bush 50 mounted in a flange 39 secured to the body 28 by dowels 40 and screws, and is pressed into engagement with the block 43 by means of a spring 51, the extent of the forward motion being limited by a collar 53 on the plunger. A rear cover plate 55 attached to the holder 22 has a recess 55<a> to receive the collar 53 when the plunger is pressed back against its spring. In operation, when the desired length of thread has been screwed, relative axial movement between the die-head and the work 64 is stopped whilst the relative rotation continues, whereupon the body 28 moves forward relatively to the holder 22 until the block 43 has been unlatched from the plunger 49. A coiled spring 56 whose ends engage pins on the cam-plate and flange 39 then rotates the cam-plate to open the head, and when the chasers are clear of the thread on the work, the body is drawn rearwardly by the axial springs to the position shown. Since the step on the block 43 is not now opposite the plunger 49, the collar 53 is pushed into the recess 55<a> until the head is re-set by rotation of the cam-plate through a radial lever thereon. A light flange 23 covers the gap between the flange 39 and holder 22.
Patent GB-1510699-A (GB)
Title: Assembly comprising two concentric relatively rotatable members with a seal between them
IPC: F16J15/40
Filed: 1975-05-20
Abstract: 1510699 Shaft seals PHILIPS GLOEILAMPENFABRIEKEN NV 20 May 1975 [18 June 1974] 21469/75 Heading F2B In a shaft seal between rotary shaft 1 and housing 2 (e.g. the crank case of a hot gas engine), the high pressure of gas in space 3 is transmitted by axially slidable ring 16 to oil 12, so that the pressures exerted on opposite sides of seal 14 are equal. Ring 16 travels along annular chamber 13 to displace the volume of oil lost by leakage through seal 13.
Patent GB-900516-A (GB)
Title: Electric heating resistance strips
IPC: H05B3/14
Filed: 1957-07-08
Abstract: 900,516. Sewing; sewing machines. EISLER, P. July 8, 1958 [July 8, 1957], No. 21497/57. Class 112. [Also in Group XI] Metal strips, which may be perforated, are sewn to insulating fabric to form an electric heater (see Group XI). To keep the perforations and strips in register a sensing device in the form of an electric contact is provided in the line of the seam a few stitches ahead of the needle, whereby, if the pattern is out of register, the circuit through the contact is arranged either to stop the machine or to lift a needle or a group of needles. In Fig. 3, a metal strip 38, having staggered perforations, is sewn to a fabric in a multi-needle machine, alternate needles of which are adapted to be lifted simultaneously. The sensing device is arranged to lift one set of needles to make long stitches 39 bridging the metal between successive perforations while the other set is making normal stitches 41 within the perforations. In Fig. 4, an unperforated strip 28 is sewn to a fabric by zig-zag bridgeing stitches 26, 27. Straight reinforcing seams 29 may be subsequently added. Alternatively, another intermediate zig-zag bridging seam 31 may be added, or two adjacent seams 26, 27 may be interconnected by a zig-zag seam 32. The thread may be of glass fibre or quartz fibre. Specifications 700,459, 900,515 and 900,519 are referred to.
Patent GB-1387129-A (GB)
Title: Highway radio communication system
IPC: G08G1/09
Filed: 1972-05-09
Abstract: 1387129 Radio signalling; inducted signalling UNITED COMMUNICATIONS INDUSTRIES Inc 9 May 1972 [21 May 1971] 21649/72 Headings H4L and H4U In a system for short-range radio-communication between a fixed station and a vehicle (as described, a road vehicle) moving along a predetermined path the vehicle has a portion of electrically conductive material and carries a conventional whip aerial. Radio signal apparatus on the vehicle (as described, a receiver) has a pair of signal terminals, one of which is connected to the aerial and the other to the portion of conductive material. A radio-frequency transmission line is located for a predetermined length along said path and establishes capactive coupling with the conductive portion of the vehicle, the transmission line having a relatively high impedance to enhance the electric field while reducing the magnetic field, radio-frequency signal apparatus (a transmitter as described) being coupled to one end of the line. If the whip aerial is mounted on the front of the vehicle the said end is that facing the direction of travel when the vehicle is over the line so that the signal is propagated along the line in the opposite direction to the vehicle travel, but if the aerial is mounted at the rear of the vehicle the transmitter is connected to the opposite end of the line. The free end of the line is terminated by an earthed resistance. It is shown that by this arrangement, due to the shielding effect of the vehicle body, the signal picked up by the aerial is added in phase to that picked up by the vehicle body. The transmission line may consist of a plurality of line segments and each segment may include a repeater amplifier. Where there are several traffic lanes, each lane has its own transmission line, the transmitted signals in adjacent lanes being propagated in the same direction but in antiphase.
Patent GB-1155939-A (GB)
Title: Improvements in or relating to ignition systems.
IPC: F02P1/08
Filed: 1968-05-08
Abstract: 1,155,939. Ignition systems. ROBERT BOSCH G.m.b.H. May 8, 1968 [May 9, 1967], No.21675/68. Heading F1B. An ignition system comprises an ignition coil 12 energizable by relative movement of the coil and a magnet system and a first electronic switch T1 for interrupting a circuit connected to the primary winding 17 of the ignition coil. The first switch has a monitoring resistor 20 connected therebehind in the effective direction of current flow. The monitoring resistor has a circuit arrangement connected in parallel therewith including a limiting resistor 21 and a control capacitor 22. One terminal of the capacitor is connected to one end of the ignition coil primary winding 17 together with one terminal of the monitoring resistor. The other terminal of the control capacitor 22 in addition to being connected to the limiting resistor 21 is connected to a control electrode 32 of a second controllable electronic switch T2 by way of whose switching path a control electrode B1 of the first electronic switch receives control potential. The valve of the control capacitor 22 is chosen so that it is fully charged when the current in the primary circuit of the ignition coil 12 is at the value desired for triggering the ignition spark. When the control capacitor 22 is fully charged the potential on the control electrode B2 of the second electronic switch T2 rapidly increases in the positive direction whereby its switching path E2, K2 and thus the switching path K1 E1 of the first electrodes switch T1 become blocked. A high tension surge thereby occurs in the secondary winding 18 of the ignition coil 12. Suitable thermionic valves or controllable semi-conductor rectifiers can be provided instead of the transistors used as the electronic switches T1, T2, T3.
Patent GB-969280-A (GB)
Title: Improvement in breathing apparatus
Inventor: OVER GEOFFREY JOHN
IPC: A62B18/08
Filed: 1962-06-05
Abstract: 969,280. Respiratory appliances. S. F. ROBERTS (1960) Ltd. July 22, 1963 [June 5, 1962], No. 21685/62. Heading A5T. A face mask has a speech diaphragm incorporated in the diaphragm which controls the demand valve. In one form the latter diaphragm is shaped as an annulus 9 having a rigid ring 11 attached around its central aperture and across which a thin, speech-transmitting diaphragm 12, of doped silk, is stretched. The stem 20 of a tilt valve 17 bears against the ring 11 and thus, when the diaphragm 9 is drawn inwards, on inhalation, the valve 17 is opened to admit respiratory gas. The valve may also be opened manually, in an emergency, by rotating a knob 24 which turns a screw 23 and causes a dished, perforated plate 26 to press inwards on the ring 11. In another embodiment described, the speech diaphragm is carried on a ring mounted loosely in an annular housing adjacent to the aperture in the diaphragm 9 and thus additionally functions as the exhalation valve.
Patent GB-755296-A (GB)
Title: Improvements in or relating to arrangements for stopping electrically operated sewing machines
IPC: D05B69/22
Filed: 1954-07-26
Abstract: 755,296. Sewing-machines. PFAFF AKT.-GES., G. M. July 26, 1954 [Aug. 3, 1953], No. 21691/54. Class 112. [Also in Group XXXVII] Starting and stopping.-An electric motor 1 drives a sewing- machine when an electromagnetically-operated disc 4 on the motor shaft engages a disc 10 which is coupled with the driving pulley of the machine. For stopping the machine, the disc 10 is attracted by a braking disc 7 when the coil of the latter is energized. The control circuit of the machine is supplied, through rectifier 3, from the stator winding of the motor which acts as an auto-transformer, and, when a regulator 11 for the disc 4 is moved to its " off " position, switch 15 closes to energize the braking disc coil. A time-delay relay 18 is also energized, and, after a period, the coil of an auxiliary impulse relay 22 is supplied with current, so that a self-maintaining control relay 27 is actuated to interrupt the circuit to the brake disc coil 7 and complete the circuit for the disc 4. The machine is thus re-started and continues to run until the needle has reached its upper or lower dead-centre position whereupon contacts 47 or 48 of a limit switch 42 open to break the holding-circuit of the relay 27, so uncoupling the motor and reapplying the brake. The relay 22 prevents re-energization of the relay 27 after it has been de-energized in the required stopping-position of the machine. The upper or lower stopping- position of the needle is selected by means of a change-over switch 49. In a modification, the motor drives the machine directly, without the aid of a clutch, and the machine is stopped by means of an electromagnetically-operated brake on the motor shaft, Fig. 3 (not shown). The motor is connected in series with a carbon pile or other rheostat, which, when moved, to the " off " position, causes the brake to be applied and then lifted after a period of delay, a portion of the series resistance being shunted when the brake is released. The motor continues to run until the desired upper or lower stopping- position of the needle is reached, whereupon the brake is re-applied.
Patent GB-738738-A (GB)
Title: Improvements relating to number registers suitable for use in binary computing devices
Inventor: HUNTLEY KEITH GORDON
IPC: G11C19/20
Filed: 1951-09-15
Abstract: 738,738. Electronic counting-apparatus; electric digital-data-storage apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 1, 1952 [Sept. 15, 1951], No. 21694/51. Class 106 (1). A number register for use in a binary computing device comprises a series of electrical triggers each having two states of equilibrium, means coupling the triggers in cascade and to a source of electrical shift pulses so that the triggers can be caused to function as a shifting register, further means coupling the triggers in cascade so that they can be caused to function as a binary counter, and means for selectively disabling the further means. The register shown includes trigger circuits 1, 2 consisting of cross-coupled valves 3, 4 and 3a, 4a respectively. The anodes of valves 3, 4 are connected to the control grids of 4a, 3a, respectively through diodes 16, 16a to which negative shift pulses are applied from line 17 through condensers 15, 15a. If the register is required to act as a binary (adding or subtracting) counter, instead of as a shifting register, the supply of shift pulses is stopped and the potential of line 21 or 22 is raised so as to allow buffer valve 20 or 20a to conduct and transmit a carry pulse to trigger 2 every time the anode of valve 3 or 4 goes positive. Another arrangement (Fig. 2, not shown), employs one of the forms of shifting register described in Specification 738,739. Reference is made to additional shift connections to provide shift in both directions and to provide " sideways shift between two series of triggers.
Patent GB-933905-A (GB)
Title: Recovery of fluids from underground formations
IPC: E21B37/00
Filed: 1962-06-05
Abstract: 933,905. Wells; soil stabilization. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 5, 1962 [June 7, 1961], No. 21738/62. Classes 68 (1) and 85. In the recovery of fluid from a formation penetrated by an injection or producing well the following treatment is repeated as necessary: (1) Pumping a predetermined volume of a selected liquid down the well into contact with the formation; (2) Injecting the selected liquid into a portion of the formation; and (3) pumping a predetermined volume of a formationplugging liquid down the well after the selected liquid to seal the most permeable zone of the formation. The plugging liquid becomes a freeflowing liquid after a predetermined time in the well so that repeated treatments increase the permeability over the whole depth of the formation. Slugs of selected liquid separated by slugs of plugging liquid are pumped down the well into an interval of a formation at a pressure less than the fracturing pressure until the selected liquid has been forced into all permeable parts of the interval. In a deep well the slugs may be removed by back-flushing and replaced by slugs of different volumes. The selected liquid may be acid, alkaline for dissolving mud, or an organic solvent for dissolving ashphalt or paraffin. The plugging liquid may be a liquid hydrocarbon in which a mixture of fatty acids have been dissolved and converted to soaps. In a well which had been fractured and acidized the selected liquid was acid and contained walnut shells as a propping agent. The invention may be used to permit the injection of an oil into a formation, the oil being one which may be thermally coked to consolidate the formation.
Patent GB-225284-A (GB)
Title: Improvements in and connected with friction clutches
IPC: F16D13/16
Filed: 1923-08-28
Abstract: 225,284. Cotton, Ltd., W., and Aldridge, C. H. Aug. 28, 1923. Clutches , friction; operating clutches; shaft couplings.-Relates to clutch mechanism particularly applicable for assisting by power the manual adjustment of a machine, comprising a number of similar sections, such as a " Cotton's Patent " or other knitting-machine, and consists in mounting radially-movable driven clutch segments each upon a pair of transverse arms, which embrace the shaft and are connected on the remote side thereof by a cross-bar acted on by a lever rocked by an incline on a slidable collar. The inclines are preferably formed of blade springs. A motor-driven shaft D drives through a pinion C a loose gearwheel B provided with a drum B'. Faced clutch segments g, G carried by parallel bars f, F slidable over each other and over a boss E fast on the shaft A, are actuated by levers l, L through adjusting-screws k, K, which bear on cross-bars h, H uniting respectively the pairs of bars f, F. The clutch is engaged by outward movement of a collar N, which carries spring blades 0 coacting with the levers and is provided with bevelled slides T coacting with the bars h, H to disengage the segments positively. The collar N is actuated through linkage R, Q by a collar r rotatably mounted on a sliding rod S running along the machine. This rod can also be rotated to actuate a motor-starter W, to which it is coupled by a cross-bar U slidable on rods V carried in similar cross-bars, one, X, being loose on the rod and the other, u, being fast with the spindle w of the starter.
Patent GB-1005546-A (GB)
Title: Improvements in or relating to gas lighters
Inventor: RAYMOND GENOUD HENRI LOUIS
IPC: F23Q2/36
Filed: 1963-05-30
Abstract: 1,005,546. Gas lighters. ETABLISSEMENTS GENOUD & CIE. May 30, 1963 [Jan. 8, 1963], No. 21764/63. Heading F4F. A butane or propane gas lighter comprises a moulded plastic U-shaped body having limbs 2, 3a between which is held a gas cylinder 35 abutting a rib on the web 1, the upper flange 3a being forked to allow the lateral passage of a projection 35a on the cylinder therethrough. The web 1 houses a metal flint tube 10, and has two lateral lugs 5 perforated for a spindle 29 carrying a spark wheel 27 and knurled driving wheels 28. The lugs 5 have open bearings engaged by studs on a moulded plastic lever 17, 18a which opens the outlet valve of the gas cylinder. The rocking arm comprises a vertical arm 17 fitted in a notch 12 in the web 1, and a forked horizontal arm 18a which engages a collar 37 fixed to a valve rod 36. The lighter is enclosed by a U-section casing which is slid over the lighter into abutment with the flange 2. The casing is elastically locked by the engagement of lateral studs on a moulded plastic locking member 22, 24, with notches in the edges of the casing. The locking member is secured to the U-shaped member by the screw 32 which closes the end of the flint tube.
Patent GB-915993-A (GB)
Title: Improvements in or relating to stop rod devices for looms
Inventor: HAUPTMANN GERHARD
IPC: D03D49/58
Filed: 1960-06-21
Abstract: 915,993. Shuttle stop motions. WEBSTUHLBAU NEUGERSDORF VEB. June 21, 1960, No. 21773/60. Class 142 (2). A pressure-filled flexible hollow body 7 in a shuttle box is conneeted by a pipe 11 to a similar body 9 acting on spring-loaded stop-rod nib 2. When the shuttle is boxed the nib 2 is deflected by transfer of the pressure medium from the body 7 to the body 9, the spring- loaded nib 2 returning the medium to the body 7 when the box is empty. Specification 899,047 is referred to.
Patent GB-1075963-A (GB)
Title: Improvements in and relating to porous fibrous bodies
IPC: D04H3/14
Filed: 1964-06-02
Abstract: A stiff elongate porous bonded fibrous body comprises filaments a major portion of which are crimped, a major portion also being continuous filaments which extend between the two end faces of the body, the filaments being bent in addition to the crimps at random locations, and between bends extending transversely to the length of the body, the filaments being bonded together at points where they lie in contact.  A tow (2) (Fig. 1 not shown) of preponderantly continuous filaments which may be treated with a plasticiser is fed by means of foraminous sleeves (6, 7) which rotate about hollow cylinders (4, 5) into a tapered guide (3). Air is supplied under pressure from the cylinders (4, 5) through apertures (9) therein and through the sleeves (6, 7) into the guide (3) and serves to distribute the filaments of the two across the cross-section of the enlarged end of the guide (3). Alternatively the tow as a whole may be made to oscillate thereby laying itself in zig zag form in layers across the cross-section of the guide.  Extending from the end of the guide (3) is a perforated tubular housing (14) through which the air can escape. Steam or other heated gas or vapour is injected through a circumferentially distributed series of ports (16) in order to bond the filaments together at points where they cross over. Cold air or other coolant is injected through ports (21) to effect cooling and thereby hardening of the bonds.  Rollers (24) which operate at a suitably reduced speed ratio in respect of the input feed sleeves (6, 7) withdraw the finished bonded fibrous body (30) from the apparatus. Suitable filamentary materials for the tow (2) include cellulose acetate, viscose rayon, polyethylene and polypropylene, while other particles, filaments or fibres may be included if desired. Plasticiser in addition to or instead of that applied to the filaments of the tow may be injected with the steam.  If the filaments are of thermoplastic material the plasticiser may be omitted and the filaments bonded by the softening action of the steam alone.
Patent GB-683243-A (GB)
Title: Improvements in or relating to hot-gas reciprocating engines
IPC: F02G1/055
Filed: 1950-09-05
Abstract: 683,243. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 5, 1950 [Sept. 8, 1949], No. 21848/50. Class 7 (i). A closed cycle hot gas reciprocating engine comprises a compressor which supplies gaseous medium under pressure to the working space of the engine the compressor also supplying gaseous medium to a duct for operating an injector which delivers combustion air for one or more burners of the engine. As shown a compressor 6 supplies compressed air to pipes 11a, 11b. The pipe 11b leads past a non-return valve 12 to the cold space of the engine. The pipe 11a leads to an injector 13 where fuel is drawn in and then to an injector 15 where secondary combustion air is added before the resulting mixture reaches the burner 10. A thermostatically controlled device may be employed to control the flow through the pipe 11a according to the temperature of the heater or hot space. The flow of air is reduced when the temperature increases. It is stated that the quantity of secondary air drawn in may be regulated. A reducing valve may be provided between the compressor 6 and the injector 13. Alternatively the compressor may be a double-stage compressor air from the low pressure stage flowing to the 'burner and another part being further compressed before supply to the conduit 11b. The secondary combustion air may be supplied by means of a fan. The latter may be a low pressure fan the air supplied by the compressor aiding in the injector the action of the fan. It is stated that the medium supplied may be either nitrogen or hydrogen.
Patent GB-221638-A (GB)
Title: Improvements in the lubrication of engines and the like
IPC: F16N7/34
Filed: 1924-05-22
Abstract: 221,638. Mackay, J. A. May 22, 1924. Lubricant conveyed by fluid.-In apparatus for permeating steam or other aÙiform fluid with liquid lubricant comprising a central lubricant nozzle c surrounded by a conical or like shield d whereof the larger end is presented to the flow of the energizing fluid, which escapes from the smaller end around the lubricant outlet, a conical or like dispersing shield f is fitted, the smaller end of which adjoins that of the shield. Lateral passages c<2> are formed in the nozzle for the escape of a portion of the lubricant to the passages e between the nozzle and the shield d, and orifices d<1> are formed in the shield d opposite the passages c<2>. Orifices f<1> are formed on the shield f. The device is applicable to steam and internal-combustion engines, air compressor and exhausters, and the like. Specification 208,412 is referred to.