baber/WOPTO huggingface dataset:
Patent GB-1067977-A (GB)
Title: Improvements in or relating to e.h.t. generator circuits
Inventor: NEWELL ALLEN FREDERICK
IPC: H03K4/64
Filed: 1965-04-02
Abstract: 1,067,977. Scanning circuits. MULLARD Ltd. Feb. 11, 1966 [April 2, 1965], No. 14059/65. Heading H3T. [Also in Division H2] In an e.h.t. generator for a television receiver, current supplied to an inductor TF3 is interrupted by a semi-conductor device T2 and the semi-conductor device is controlled by a drive circuit which includes protection against arcing in the picture tube. An impedance resistor Rl in Fig. 3, or a capacitor (Cb) in Fig. 2 (not shown), carries the e.h.t. current. The control loop shown in heavy line contains a diode Df normally biased to cut-off at all times during normal operation. When excessive current flows in R1, diode Df conducts and suppresses the drive signals for a time dependent on the circuit constants, for example several line periods.
Patent GB-1209762-A (GB)
Title: Machine for crimping an electrical connector to an electrical cable
Inventor: WOODWARD THOMAS GEORGE
IPC: H01R43/05
Filed: 1967-03-28
Abstract: 1,209,762. Jointing by stamping; making electrical connections. JOSEPH LUCAS (INDUSTRIES) Ltd. 18 March, 1968 [28 March, 1967], No. 14063/67. Headings B3A and B3Q. [Also in Division H2] Apparatus for crimping connectors to wire 59 comprises a gripping mechanism 15 to grip the wire, a stripper mechanism 25 operated after the wire has been gripped and a hammer 45 moved relative to an anvil 44 by an air cylinder 48 through a toggle linkage 46 which has one link pivoted to an adjustable block 47. The gripping mechanism is mounted on a frame 14 and the jaws 18, Fig. 2 (not shown), are moved together by a cam wedge 22 moved by an air cylinder 23. The wire is inserted through the open jaws manually and abuts an adjustable push-rod 38 of a microswitch 37 to start the apparatus. The jaws are moved to grip the wire and then a pair of stripping blades 35 are moved together by an air cylinder 33 acting through a toggle linkage 31. A pair of adjustable stops 39 prevent the wire core being severed. The blades are pivoted to a carriage 26 slidable on guide rails 24 which is moved by the cylinder 33 to strip the wire. The cylinder 48 is then activated to extend the toggle linkage 46 to move the hammer to the anvil. A bellcrank lever 52, Fig. 2 (not shown), is pivoted to the front wall 13 of the apparatus frame and has a finger 53 at one end which is spring- biased into a channel 54 to feed connectors 57 to the anvil. A ramp is provided in the channel to prevent any reverse feed of the connectors when the finger is returned. The finger is spaced from the connector to be pushed to raise the hammer slightly before the feed commences. Coacting shear blades 63 on the anvil and the hammer separate the connectors from the strip 55 and the scrap is ejected down a shoot 64. The shoot 65 guides the stripped insulation to a container. An air jet directs compressed air on to the stripper blades to remove the insulation. The toggle linkage adjustment is effected by a micrometer-type adjustment to alter the upper and lower limits of the hammer.
Patent GB-796416-A (GB)
Title: Improvements in or relating to kinematograph film projectors
IPC: G03B21/20
Filed: 1955-05-16
Abstract: 796,416. Kinematograph projectors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 16, 1955 [May 19, 1954], No, 14066/55. Class 97(1) An intermittent feed projector includes a plurality of discharge lamps and a condenser system which is moved rapidly relatively to the film gate each lamp being lit when in optimum relationship with its associated condenser and the gate. Thus, as shown, successive parts of each film frame 6 are illuminated by lamps 1, illuminated in sequence, in association with one of a series of condenser lenses 3 mounted in a rotating disc 2, for projection by the objective 7. This arrangement is advantageous where the film frame has a large width : height ratio.
Patent GB-150087-A (GB)
Title: Improvements in frame suspensions for chain-track tractors
IPC: B62D55/084
Filed: 1919-06-04
Abstract: 150,087. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). June 4, 1919. Endless-track engines and vehicles.-The main frame of an endless-track tractor is mounted on the tracks which carry the load-supporting rollers by means of transverse platform or leaf springs, one at the rear end of the trucks rigidly secured at its centre to the main frame and resting at its ends on the trucks, and the other at the forward part of the trucks and pivoted at its centre to the main frame and at its ends to the trucks. Fig. 3 shows the front spring 87 pivoted at 90 to the main frame 89 and at its ends 91, 92 to standards 93 on the front portion 78, Figs. 1 and 3, of the trucks at the rear of the idler wheels H3. Bolts 95, pivoted at 96 to the standards 93, carry springs 97 supporting bars 101. The rear spring 105. Fig. 2, is fixed to a cross-beam 104 of the main frame and rests at its ends on seats 106, 107 on the front parts 79, Figs. 1 and 2, of the trucks, stops 108 limiting movement of the spring. The seats 106, 107 provide bearings for a stabilizer shaft 69, the ends of which are connected by thrust-rods 67 to the rear axle. The rear truck sections are braced by inwardly-extending arms 109, which are integral with the trucks and formed at their inner ends with bearings for the shaft 69. Further springs 97 for supporting the bars 101 are provided on the cross-beam 104. The truck sections 78, 79 are pivoted together at 80 and carry the load-supporting rollers 85, and the upper run of the chain track 86 is supported on rollers 103 carried by the bars 101.
Patent GB-290447-A (GB)
Title: Improvements in the process of manufacturing cellular rubber and elastic tyres therefrom
IPC: C08L21/00
Filed: 1927-05-26
Abstract: 290,447. Ringer, F. May 26, 1927. Porous or spongy indiarubber.-A cellular rubber mass, suitable for use in tyres, is produced by incorporating with the rubber a carbonate or bicarbonate of a heavy metal, and vulcanizing under conditions permitting of expansion. In an example 10kg. of rubber, 10kg. of basic car. bonate of lead ¢kg. of sulphur, 1kg, of mineral oil, pigments, and reclaim, are mixed, preferably to such an extent that no white particles are visible. A rubber or fabric hose, or an annular mould coatbed with raw rubber, is partly filled with the mix and the whole is vulcanized in steam or hot air to produce a tyre
Patent GB-769984-A (GB)
Title: Improvements in or relating to dental syringing and spraying hand-pieces
IPC: A61C1/08
Filed: 1955-05-17
Abstract: 769,984. Dental sprays. SIEMENSREINIGER-WERKE AKT.-GES. May 17, 1955 [May 18, 1954], No. 14274/55. Class 81(2) A container for liquid medicament, mounted on a dental spray, is so arranged that the outlet is above the liquid level during filling. The container 27 is approximately egg-shaped and is attached to the spraying handpiece 1 by a pillar 31 and nut 34. The outlet 38, controlled by the needle valve 44, leads into a lower chamber where the liquid is mixed with an air stream, pressure in the container being equalized with that in the outlet duct by a tube 41. The container is filled after removing a screwed cover 36 and while it is held with its axis vertical, the liquid is poured in up to an indicator mark 46. By using this arrangement no liquid can pass into the handpiece during filling.
Patent GB-573395-A (GB)
Title: Improvements in a thermionic valve for use with a circuit for amplifying, rectifyingor generating electric wave oscillations
IPC: H01J21/02
Filed: 1944-07-27
Abstract: 573,395. Thermionic valves and circuits therefor. CLEVELAND, G. R. E. July 27, 1944, No. 14318. Addition to 571,678. [Classes 39 (i) and 40 (v)] The beam plate tetrode described in the parent Specification is further modified by the provision of a suppressor grid s<2> between the screen s<1> and the tongued anode a, the distance between grids s<1> and s<2> being less in the region facing the anode than in the region facing the beam plates b. Strips d<1>, d<2> between control grid g and screen s<1> and between suppressor s<2> and anode a respectively may be either connected to the grids or insulated and kept at adjustable potentials to control the shape of the beam ; the strips may also receive the local oscillation when the valve is used in a mixing circuit. The anode may be shaped at the edges to oontrol the shape of the anode characteristic near the cut-off point. Cathode c, control grid g and screen s<1> are carried by mica spacer p<1>; suppressor s<2> by a second mica spacer p<2> - mounted on insulating strips r<4> carried by the first spacer p<1>. The valve is described in a detector circuit, but may be used in amplifiers or oscillators.
Patent GB-290672-A (GB)
Title: Pump with variable output
IPC: F04B1/32
Filed: 1928-05-16
Abstract: 290,672. Labitotiere, E. H. May 19, 1927, [Convention date]. Cam - actuated pumps; stroke, varying.-In a revolving cylinder pump the pistons 4 are actuated by an inclined member 5, against which they are pressed by springs 11. The stroke of the pistons may be. adjusted by varying the inclination of the member 5 by means of a rack 8 engaging a toothed sector 7 thereon. The rack has a graduated head 14 to indicate the stroke. In another form the adjustment is effected by worm gear. The springs 11 may be arranged at the other ends of the pistons.
Patent GB-612155-A (GB)
Title: Improvements in direct reading ph meters
IPC: G01N27/416
Filed: 1946-05-13
Abstract: 612,155. Measuring physical qualities. WILKINS, S. R., and TUNNICLIFFE, E. J. May 13, 1946, No. 14385. [Class 37] A direct reading pH meter comprises a cathode coupled bridge type valve voltmeter to which a glass cell electrode is connected via Sc. Triode A functions as a millivolt measuring valve, while triode B provides the off-set voltage for reference, the out-of-balance current being read on a meter M direct in pH units. Two separate potential dividers are provided across the stabilised D.C. supply for the grids of the two valves A and B. The grid of A is normally returned to a point x via a switch SW2, x being closed to give a linear operation of the valve A without grid current flowing. The grid of valve B is returned to a point y of the second potential divider via a switch SW3, y being on a potentiometer Z2 so that the two anode currents may be balanced for a nil reading of the meter M. A further potentiometer T2 provides a backing-off voltage when the ganged switches are in position R2, such that the reading of meter M is reduced to zero when the voltage input corresponds to 7 pH, thus extending the range of the meter to read 7-15 pH on position R2. The position Z is provided for zero calibration when the cell is replaced in the grid circuit of valve A by a high resistance H.
Patent GB-700880-A (GB)
Title: Tube push bench for the production of seamless tubes
IPC: B21C1/30
Filed: 1951-06-18
Abstract: 700,880. Drawing tubes. DEMAG AKT.- GES. June 18, 1951 [June 19, 1950], No. 14425/51. Class 83 (4) A push bencn for the production of seamless tubes is characterized in that the driving means, which may be a rack or endless drive, lies parallel with and substantially in the same horizontal plane as the push rod and mandrel-rod bed. In an embodiment of the invention a rack 4, driven by electric motors 1 through gearing 2 and a pinion 3, lies parallel and in the same horizontal plane as the bed of a push rod 5 at the front end of which is a mandrel rod 6 carrying a replaceable mandrel. The rack slides in guides 12 and the rear end of the rack is attached to the rear end of the push rod by a curved arm 14 (Fig. 3) replaceably inserted in the rack by means of a guide member 13 of dove-tail section. Instead of replacing the whole of the arm 14 for different sizes of push rod the arm may have a detachable head. The teeth of the rack are preferably directed downwards and drive means may be provided on two opposite sides of the push rod bed. Dies 7a are carried by a bed 7 and the drawn tubes are detached from the mandrel in a detaching mill 8 the mandrel being removed from the rod 6 at 9 and returned on a conveyer 10 in readiness for the next drawing operation.
Patent GB-1433108-A (GB)
Title: Apparatus for weighing moving loads
IPC: G01G19/18
Filed: 1974-04-02
Abstract: 1433108 Analogue-to-digital conversion CARL SCHENCK AG 2 April 1974 [21 April 1973] 14608/74 Heading H3H [Alxo in Division G1] In weighing a moving load, a varying load signal voltage is digitized by a dual ramp analogue-to-digital converter in which the measuring time during which the load signal is integrated is chosen in response to movement or change of the load and the time taken for the back integration is corrected to make the final digital output independent of the duration of the measuring time. For weighing a railway wagon moving at a constant unknown speed, mechanical or optical switches M 1 , M 2  respond to passage of the wagon over a weighbridge 22 to define the beginning and end of the measuring time which is as long as possible but avoiding initial and final transients. Alternatively switches M 3 , M 4  are placed on the approach side of the weighbridge, spaced as shown, a counter being incremented from zero as wagon passes from M 3  to M 4  and decremented at the same rate, the measuring period beginning when the counter reaches zero and ending when it reaches the negative of the value it held when the wagon was as M 4  (or the counter can be reset to its M 4  value and counted down to zero again). For weighing a swinging crane load, the fundamental oscillation frequency of the load signal is derived by a low pass filter (25), Fig. 5, not shown, and maxima and minima are detected by a comparator (27) receiving the filtered signal direct and via an R.C. phase shift. The measurement period is thus a whole number of oscillation periods, the number being determined by a frequency divider (28). Dual ramp converter.-In Fig. 7 clock pulses from a generator 3 are counted at B for the measuring time during which the load signal is integrated at 1, switch S<SP>1</SP> 1  closed, S<SP>1</SP> 2  open, and at A for the back integration time, S<SP>1</SP> 1  open, S<SP>1</SP> 2  closed. Divider 13 forms A/B times a constant which is fed to a nixie tube indicator 8 via a store 7. In a modification, Fig. 9 (not shown), only one counter (6) is used, a reference voltage being integrated in a second integrator (11) during the measuring time and the resulting value used for the back integration. In a second modification, Fig. 11 (not shown), again only one counter (6) is used, its count for the measuring time being stored (at 18) and used to control the division factor of a frequency divider (19) between the clock pulse generator (3) and the counter (6) during the back integration.
Patent GB-347896-A (GB)
Title: Improved apparatus for use in dry cleaning operations
IPC: D06F43/08
Filed: 1930-05-12
Abstract: <PICT:0347896/III/1> A dry-cleaning apparatus comprises a unitary structure consisting of washing and distilling chambers and a condenser, with means for supplying solvent to the washing chamber and discharging it to the still.  The clothes may be agitated by a dolly, or may be contained in a basket.  Solvent is distilled from a still 15, by heaters 20, and passes upwards through a pipe and a condenser 30 to the washing chamber 10.  The solvent collects in the chamber 10 and is discharged at intervals through an adjustable siphon 28 to the still.  The clothes are agitated by a weighted dolly 13 attached to a rod 14 which is oscillated by a crank mechanism mounted upon the casing 31.  An observation window 12 is provided.
Patent GB-638559-A (GB)
Title: Improvements in or relating to automatic motor control systems
IPC: H02P9/26
Filed: 1947-06-04
Abstract: 638,559. Automatic control systems. MILSOM, F. R., FURZEHILL LABORATORIES, Ltd., and SMITH & SONS (ENGLAND), Ltd., S. June 4, 1947, No. 14824. [Class 38 (iv)] [Also in Group XXXVII] In an automatic control system in which a signal representing the change of a condition is amplified and applied to maintain a datum condition, as in Specification 617,240, the gain of the amplifier is varied inversely as the rate of change of the difference between the two output currents of the amplifier. As shown, the A.C. error signal which is applied at the terminals 12, controls the excitation of the field windings 22, 23 and thus also the torque of the corrector motor 20 energized from the generator 25. The windings 18, 19, the D.C. currents through which are dependent on the amplitude of the error signal, control the impedances of the variable inductances 33, 33a and 34, 34a, in series with fields 22, 23, the currents through which develop D.C. potentials across resistors 26, 27. The latter voltages are applied to the primary of transformer 35, the secondary of which develops a voltage during change of the error signal, which determines the A.C. output of the ring modulator 53, 54, 55, 56 which acts in series opposition to the error signal. Specifications 576,248, 576,249, 611,037 and 611,048, [Group XXXVIII], also are referred to.
Patent GB-1387314-A (GB)
Title: Microfilm reading apparatus
IPC: G03B21/11
Filed: 1972-03-29
Abstract: 1387314 Optical projection apparatus AGFA-GEVAERT AG 29 March 1972 [29 March 1971] 14843/72 Heading G2J In a mircofilm reader having at least two microfilm holders (constructed from transparent plates 9,13 and 10,14 respectively) movable relative to objective 19, the distance between the objective 19 and the holder which at that time is closest to the objective 19 and through which the optical path passes is constant. Thus the apparatus ensures a constantly focused image on screen 18 despite changes between microfilm holders. As shown the holders are slidably mounted on rods 5,6 which in turn are slidably mounted on two rods (only 2 is visible); this provides the X-Y motion of the holders relative to the objective 19. The objective 19 is pivotally mounted about hinge 22 and spaced from the immediately adjacent holder by frustum 24 rotatably mounted on a bushing eccentrically mounted on spindle 27. As the holders are moved perpendicular to the plane of the drawing the frustum can roll off one holder on to the next thereby maintaining the constant objective-holder distance. The eccentric bushing is rotated by spindle 27 to provide any further focusing adjustment. The frustum 24 may be replaced Figs.3 and 4 (not shown), by a block shaped to form an isosceles triangle contacting the holders, the apex of the triangle being an oblique angle. The holders have hinged top plates 9,13 to permit insertion of microfilms 11, 12. Microfilm storage is provided in the base of housing 3 for films 30a- 30o.
Patent GB-1344955-A (GB)
Title: Cord tensioning device
IPC: B65H59/04
Filed: 1972-03-29
Abstract: 1344955 Unwinding spools GOODYEAR TIRE & RUBBER CO 29 March 1972 [26 April 1971] 14864/72 Heading D1J A tension control for cord or wire 60 being drawn off a spool 50 comprises an armature 46 rotating with the spool 50 and urged axially along a spindle 16 towards a stationary brake member 36, and an electro-magnet 26 for attracting the armature into tighter frictional engagement with the brake member. There may be a brake lining 39 between the brake member 36 and the armature 46. A rheostat 32 varies the pulling force of the electro-magnet 26. The spindle 16 may be inclined such that gravity urges the spool and armature towards the brake. Alternatively mechanical means such as a spring may be used for this purpose. This gravitational or mechanical force is additional to the force developed by the armature 46. The central aperture 47 in the armature 46 is sufficiently large to permit slight angular and radial movement of the armature relatively to the spindle 16. To permit the armature to move relatively to the spool 50 the armature 46 carries pins 54 that extend with clearance into slots 51 in the reel. There may be damping means preventing excessive vibration and shock loading between the spool 50 and armature 46, for example elastomeric sleeves 59 on the pins 54. The brake member 36 is axially adjustable on a central housing 22.
Patent GB-889655-A (GB)
Title: Method and device for removing granular solid materials from recepticles
Inventor: QUINTIN ALBERT ANDRE JOSEPH
IPC: B65G65/44
Filed: 1958-05-09
Abstract: 889,655. Discharge of material from a hopper. COMPAGNIE DES METAUX D'OVERPELTLOMMEL ET DE CORPHALIE. May 9, 1958, No. 14874/58. Class 78 (1). Hopper 1 is discharged by a scraper 7 reciprocated by means of rod 9 of a rotating disc, driven by a motor. The amplitude of the stroke of the scraper is varied by the position of attachment of rod 9 to the disc, and the speed of reciprocation is varied by the gear-change of the motor. There may be a plurality of scrapers, which may take the form of chains.
Patent GB-419262-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A41F9/02
Filed: 1934-05-17
Abstract: 419,262. Trousers. LONDON, A. L., LONDON, J. L., and LONDON, E. L., (trading as LONDON & SONS, L.), Little Alie Street, Aldgate, London. May 17, 1934, No. 14964. [Class 141.] The waistband of trousers and the like is made integral with the body of the garment, and is cutaway for the provision of elastic insertions, the material of the waistband being cut of double the width thereof so as to be capable of being doubled down. The insertions are made of botany or like wool and yarn such as that known under the Registered Trade Mark " Lastex." As shown, an inextensible part of the waistband 3 is made integral with the body part 1 and of such a width as to allow doubling down as indicated at 4 to grip the ends of the extensible insertions 5. In the case of knickerbockers, elastic insertions may be inserted in a similar manner at the knee bands.
Patent GB-713136-A (GB)
Title: Improvements in or relating to a process for freshening stale bread
IPC: A21D17/00
Filed: 1952-06-13
Abstract: Stale bread is freshened by placing the bread in an enclosed chamber, introducing steam into the chamber under a pressure of at least 1 atmosphere, stopping the introduction of steam, and then raising the temperature in the chamber to 300 DEG C, or by blowing superheated steam into the bread with the aid of one or more hollow perforated needles, and simultaneously heating the crust of the bread to 300 DEG C.
Patent GB-529729-A (GB)
Title: Improvements in or relating to methods of brewing or preparing fermented malt beverages, for example beer, and the products resulting therefrom
IPC: C12H1/14
Filed: 1939-05-20
Abstract: 529,729. Beer. SCHAPIRO, A. May 20, 1939, No. 15077. Convention date, Feb. 2. [Classes 14 (ii) and 49] In preparing fermented malt beverages, the wort before or after fermentation is admixed with a small quantity of monochloracetic acid, or other monochlor aliphatic acid having 3 to 5 carbon atoms, or the salts or ethyl, glycol or glycerol esters of such acids. The flavour is improved, maturity is hastened and undesirable fermentation prevented; also protein bodies are rendered stable to temperature changes. The fermentation may be effected in the presence of a small addition of monochloracetic acid &c. and a further addition made at the end of the main fermentation.