baber/WOPTO huggingface dataset:
Patent GB-500377-A (GB)
Title: Improvements relating to resins
IPC: C08G63/46
Filed: 1937-09-13
Abstract: 500,377. Polyhydric alcohol-polybasic acid condensation products. STANDARD OIL DEVELOPMENT CO. Sept. 13, 1937, No. 24840. Convention date, Oct. 27, 1936. [Class 2 (iii)] Modified alkyd resins are prepared using as a modifying agent a naphthenic acid derived from petroleum or other naturally occurring material. Other modifiers, such as fatty acids or fossil resins may also be present. Polyhydric alcohols may be partly esterified with the naphthenic acid and then fully esterified with the polybasic acid or hydroxyl-containing polybasic acids may be esterified with the naphthenic acid and then with a polyhydric alcohol. The Specification as open to inspection under Sect. 91 refers also to the esterification of resins, obtained by the condensation of maleic anhydride with diolefines, with glyceryl mononaphthenates and also to the production of oilsoluble resins by the polymerization of naphthenyl acrylate. This subject-matter does not appear in the Specification as accepted.
Patent GB-613904-A (GB)
Title: Machine for lacing shoes and the like
IPC: A43D11/08
Filed: 1939-08-29
Abstract: 613,904. Shoe-lacing machines; knotting devices. BATA AKCIOVA SPOLECNOST. Aug. 29, 1939, No. 24843. Convention date, Aug. 29, 1938. [Classes 43 and 112] In a shoe-lacing machine, a single lace is threaded successively through registered pairs of eyelets and is finally knotted. The machine comprises a series of needles 7, each with a fixed and a movable joint for gripping the end of the lace, mounted on a carriage 6 arranged to be moved to the left, as seen in Fig. 1, and back again by a cam. Each needle is arranged to be moved individually rearwardly by a cam, latched in that position, and moved forwardly again by a spring. Above the needles are a series of grippers 9 arranged to be opened and closed by cam means and to be moved together upwardly, forwardly and downwardly, and reversely. A rectangular bar 18 arranged between the needles and grippers is arranged to be rotated by gears 27 and to be moved to the right and back again by a cam. In use, the registered eyelets of an upper, Fig. 7, are threaded on the needles 7 while these are in forward position. The jaws of the left hand needle are opened by a hand lever 60, a lace end is inserted into them, and the machine is started by turning the hand lever the other way, the needle then closing to hold the lace. A join 22 is closed to grip the upper, the bar 18 is moved to the right, and the left hand needle is withdrawn rearwardly by a catch on the gripper carriage, so that it draws the lace through the first pair of eyelets, and is then latched in rearward position. The lace end is then gripped by the left hand gripper, which then executes its upward, forward and downward movement to carry the lace over the bar 18 and the upper back to the front side of the upper. During this movement, the bar 18 is rotated so as to pull the slack of the lace through the eyelets, and the carriage 6 is moved to the left to present the second needle to the gripper with the lace end. The needles and grippers are opened and closed at the appropriate times by cam mechanism.. The second needle with lace end is withdrawn through the eyelets by the reverse movement of the gripper carriage, the needle carriage is returned to the right, the lace end is taken by the second gripper, and the sequence of operations is repeated. When the fourth needle has dealt with the last pair of eyelets, a knotting gripper 56 is moved to the left and the bar 18 is withdrawn. The fourth gripper 9 then makes a loop over the gripper 56, the fifth needle 7 draws the lace back under the gripper and around the free length of the lace, the movable jaw of the gripper 56 opens the fifth gripper 9, carries the end of the lace into the open jaw, Fig. 12, the latter closes, and the gripper 56 is moved to the right, Fig. 13, drawing the end of the lace through the loop to make the knot. The machine then stops and the latches of the needles are released so that they return to forward position.
Patent GB-464745-A (GB)
Title: Improvements in or relating to wrenches and like tools
IPC: B25G1/00
Filed: 1936-09-14
Abstract: 464,745. Wrenches. TORBERT, J. E. Sept. 14, 1936, No. 25044. [Class 61 (iii)] A wrench comprises a stem 1 with a ballcatch 4 at the end adapted to retain a nut socket 5 and a bent portion 6 to which is pivoted at 18 a handle 22 with spring catch 16 coacting with notches 10 on the enlarged end of the stem to retain the handle in the position shown for rapid rotation of a nut or in the dotted line position for obtaining increased power on the nut. The handle is mounted on a member 13 having a stem 14 secured by a screw 24 to an inner sleeve 20 within the handle and the grip part of the handle is closed by an end plug 25. A ratchet connection may be provided between the cranked part 6 and the stem 1.
Patent GB-1157633-A (GB)
Title: Improvements in and relating to a Roll Assembly
IPC: F16C13/02
Filed: 1966-06-06
Abstract: 1,157,633. Rollers; bearings. TORRINGTON CO. 6 June, 1966 [4 June, 1965], No. 25061/66. Headings F2A and F2U. A roll 20, such as a papermaking ring, calender, sizing or swimming roll, is driven through the intermediate race 32 of a nested three - race bearing arrangement 28 by which a roll supporting stationary shaft 10 is itself supported. The swimming roll shown is supported on the shaft by bearings, that 12 shown comprising spherical rollers 18. The threerace bearing arrangement 28 comprises, between an inner race 30 and the intermediate race 32, and the latter and an outer race 34, rolling elements which may be ball or, as shown, respectively spherical rollers 36 and cylindrical rollers 40. The inner and outer races 30, 34 are respectively secured on the shaft 10 and in an external housing 46. The intermediate race is bolted on one side to a driving shaft 60 and on the other side to a driving ring 102 of a resilient coupling, a driven ring 76 of which is bolted to the roll 20. The resilient coupling, which absorbs shocks and compensates for misalignment, comprises elastomeric, e.g. rubber, bushes 86 on pins 94, said bushes having external metal sleeves (90) and internal sleeves (92). The bushes 86 are received in apertures 84 in one ring, as shown the driven ring, and the pins in the other ring. A sleeve 66 carrying shaft engaging lubricant sealing 0-rings 68, 68<SP>1</SP> is connected to rotate with the driven ring 76 by slots (78) in the latter engaging pins 72 carried by the sleeve. A stepped sleeve 96 on the shaft is sealed with respect to the sleeve 66 and the rings 102, 76 by sealing members 98, 112 and an 0-ring 100. The housing 46 has outer-race-retaining end covers 54, 58 respectively sealed with respect to the ring 102 by a seal 56 and to the driving shaft 60 by a close clearance or other seal 61. A space 114 between the roll and the shaft is filled with oil to offset roll distortion under load, said oil being directed to lubricate the bearing 12 and, through a line 118, the rollers 36, being finally discharged through shaft flange apertures 120 and an outlet 122. The flow rate through the line 118 may be controlled by a valve in the outlet 122. The rollers 40 are lubricated through an inlet 52.
Patent GB-301582-A (GB)
Title: Improvements in or relating to pianofortes
IPC: G10C3/06
Filed: 1927-09-24
Abstract: 301,582. Gunton, F. W. Sept. 24, 1927. Pianoforte bridges.-The bass end of the treble bridge 13 of an overstrung pianoforte is connected by a bar 19 to the upper end of the bass bridge 12, to diminish the break in tone. The bar 19 is carried on the rear side of the soundboard, clear of the belly-bars, by posts 16, 17.
Patent GB-217118-A (GB)
Title: Improved method of and apparatus for extinguishing fires in tanks and similar enclosures
IPC: A62C3/06
Filed: 1923-10-10
Abstract: 217,118. Feeny, V. F., (Federal Fire Engineering Co.). Oct. 10, 1923. Nozzles with several outlets. - Nozzles, for fire-extinguishing in tanks, comprise a perforated distributing-disc 15 screwed into a spider 13 in a casing 10. They are attached to supply mains inside the tank and spread a sheet of water over the entire surface and also cool the sides of the tank.
Patent GB-269412-A (GB)
Title: Improvements in projectiles
IPC: F42B10/44
Filed: 1926-10-12
Abstract: 269,412. Vargyas, A. Oct. 12, 1926. Projectiles.-The rear end of a projectile is 'tapered in steps formed by cylinders a<1> - - a<8>. These steps are separated by flat or concave faces b and terminate in a point or small surface b<2>, Fig. 1, or in a comparatively large concave base b', Fig. 5. This stepped rear part may be a separate hollow piece attached to the main body of the projectile. The stepped construction is stated to reduce air resistance during flight, while preserving the propulsive action of the gun gases just outside the muzzle of the gun barrel.
Patent GB-1374395-A (GB)
Title: Braking regulator
IPC: B60T8/26
Filed: 1973-05-29
Abstract: 1374395 Proportioning valves; valves DBA SA 29 May 1973 [20 June 1972] 25341/73 Headings F2F and F2V A braking regulator 10 disposed between the master cylinder and the rear wheel cylinders of a motor vehicle comprises a differential piston 18 slidably mounted in a bore 20 in the regulator body 12 and subjected in use to an hydraulic pressure force counteracting a reaction force, the piston 18 separating two chambers 28, 30 connected respectively to the master cylinder and the wheel cylinders via orifices 14, 16; communication between the two chambers 28, 30 via a duct 42 is controlled by a valve member 38 co-operable with a valve seat 43 at the end of duct 42 and the valve member 38 is mounted on a pin 44 of which one end is co-operable with a shoulder 48 in the body 12 to tilt the valve member 38 to move it off its seat 43. The reaction force may be provided by a resilient structure co-operable with a projecting portion 24 of the piston 18 and the load of this structure may vary according to the trim of the vehicle-in such a case the regulator body 12 is mounted on the frame of the vehicle whereas the structure co-operates with an unsprung part of the vehicle. The duct 42 is formed through a bolt 40 screwed into piston 18 and a spring 36 biases member 38 towards bolt 40. The pin 44 has a curved section housed in a circumferential groove 46 in the piston 18 and the pin 44 can move in a radial passage 50 in piston 18 to tilt the valve member 38. Axial fluting 52 on valve member 38 allows communication between chambers 28, 30 when the member 38 is off its seat 43. In its rest position the piston 18 is pushed to the left by the resilient structure (e.g. a spring) so that pin 44 abuts shoulder 48 and the valve member 38 is off its seat 43. When the master cylinder is operated fluid flow occurs between orifices 14, 16 via passages 50, 52, 42 until the pressure acting on piston end 24 reaches a value sufficient to overcome the force of the spring whereupon the piston 18 moves to the right to release pin 44. The spring 36 then applies valve member 38 to seat 43 and from then onwards the pressure applied to the wheel cylinder via orifice 16 increases approximately as a function of the ratio of piston areas in chambers 28, 30 assuming valve seat 43 to have a small area.
Patent GB-1323959-A (GB)
Title: Picture generating unit
IPC: G01J5/00
Filed: 1971-04-19
Abstract: 1323959 Picture generating unit BOFORS AB 19 April 1971 [26 March 1970] 25467/71 Heading H4F  In a display unit, e.g. for use in conjunction with an infra-red camera for thermal diagnosis in medicine, an image is displayed with an indication thereon of a selected area thereof, and  means are also provided to indicate the value of a signal characteristic of the selected area. In the embodiments, the selected area, the size and  position of which are controllable by manually  operable devices, is indicated on the C.R.T. of the display unit by a bright frame or by a brightening of the entire selected area. The characteristic signal may be the peak or mean video signal value within the selected area and may be indicated in digital form or as an analogue signal on the C.R.T. display. Suitable use of non-linear circuits may enable temperature to be indicated directly in an infra-red display. More than one area may be selected and have its characteristic signal indicated simultaneously. In Fig. 1 the video signal on line 7 and the horizontal and vertical scanning control signals on line 8 are supplied to a selection circuit 4 where they are used to select a part of the video signal representing a predetermined area of the image. Fig. 2 shows the selective circuit 4 in more detail, trigger signals controlling vertical and horizontal scanning being applied on lines 10, 11, delayed in manually controllable delay circuits 15, 16 and used to trigger pulse generators 17, 18 which generate pulses whose lengths are controlled manually. The resulting pulses are used to gate on a logic circuit 12 to pass only the selected parts of the video signal on line 13 through to line 14, and also to pass signals on line 23 representing the size of the selected area. Both lines 14 and 23 are connected to the signal processing unit 5 and indicating unit 6, which include a mean or peak value unit 37, Fig. 5, a readout unit 38 controlled by a readout signal on line 39, and a memory circuit 40 which stores the mean or peak signal value of the selected area and transmits it through an analogue-todigital converter 41 to a digital display unit 42. Fig. 6 (not shown) illustrates an analogue display modification of the circuit of Fig. 5. The selection circuit, Fig. 2, also includes a logic unit 24 for providing on line 25 the signals which will modify the video display to indicate the selected area. If a bright frame is displayed around the selected area then a differentiator and phase shifter 26 is situated between the pulse generators 17, 18 and the logic unit 24, but this is omitted if the entire selected area is to be brightened. Alternative methods of selecting the image area within which the characteristic signal is to be measured and indicated are also described.
Patent GB-1278909-A (GB)
Title: Closure for bottles and similar containers
IPC: B65D39/12
Filed: 1971-04-19
Abstract: 1278909 Container closures SOC ANGELO GUALA DI PIERGIACOMO E ROBERTO GUALA & C SAS 19 April 1971 [1 April 1970] 25488/70 Heading B8T A closure, for a container 19 having an internal undercut 21, comprises two parts: a main member 1 made of flexible plastics and an auxiliary member 13 made of rigid plastics. The main member 1 consists of a top flange 10, milled at 11 for easy gripping to remove the closure, and a stopper portion in the form of outer and inner walls 2, 6, the outer carrying a projection 4 adapted to engage the undercut. The member 1 is first positioned in the container, then member 13 is inserted so that tubular wall 14 extends between the inner and outer walls 2, 6. The top 16 of this wall 14 is connected by frangible links 18 to ring portion 17. This is supported in annular rebate 12 and holds the projection 15 in register with the projection 4, preventing the deformation of the wall 2 necessary to remove the closure. The closure is unsealed by pressing down portion 16, breaking the frangible links 18 to locate the projection 15 below the level of the projection 4. The closure can be re-used and the broken links indicate that it has been opened. Longitudinally extending ribs 8, 9 guide the wall 14 between walls 2 and 6, and flexible annular tabs 3 improve the gas seal of the closure.
Patent GB-1272011-A (GB)
Title: Nickel coated flake pigments and methods for their preparation
Inventor: MARSHALL WILLIAM JOSEPH
IPC: C23C18/36
Filed: 1969-05-20
Abstract: 1,272,011. Nacreous pigments. E. I. DU PONT DE NEMOURS & CO. 20 May, 1969 No. 25710/69. Heading C4A. [Also in. Division C7] Pigments having a metallic sheen comprise glass or mica flakes coated with metallic nickel and further coated with nickel oxide or hydrous titania. The pigments are obtained by pretreating the glass or mica flakes with stannous and palladium chlorides, depositing a coating of nickel thereon by treating the flakes with a nickel -salt solution containing sodium hypophosphite reducing agent, at a pH below 7 and a temperature of at least 55‹ C., and then either subjecting the coated flakes to a controlled oxidation to give a nickel oxide surface coating, or depositing a layer of hydrous titania by hydrolysis of a titanium salt, and heating the coated pigment to 200-350‹ C.
Patent GB-682822-A (GB)
Title: Method of measuring the percentage of liquid or solid constituents of a mixture
IPC: G01N27/18
Filed: 1950-10-23
Abstract: 682,822. Determining heat coefficients. JONSSON, O. Oct. 23, 1950 [Oct. 21, 1949; May 11, 1950; May 11, 1950], No. 25713/50. Class 97 (iii). [Also in Group XXXVIII] The temperature of a heated body immersed in a mixture is compared with the temperature of the mixture, and the difference used as a means of determining the heat-conducting properties of the mixture,.which is a function of the ratio of its relative constituents. Equal stabilized D.C. voltages obtained from an A.C. supply are fed to two similar windings 8, 10 made of material with a high resistance-temperature coefficient, the two currents passing through a meter 9 in opposite directions. The windings 8, 10 are contained in vessels 14, 13 and heated by coils 12, 11, respectively, fed with A.C., the voltage across coil 11 being greater than that across coil 12. The area of the vessel 14 and the heat supplied by coil 12 are made such that when the vessels 13, 14 are submerged in the mixture to be investigated, the difference in temperature between windings 8, 10 is independent of the A.C. supply voltage variations, and is said to represent the difference in temperature between the vessel 13 and the mixture. The resistances of the windings 8, 10 are now different, causing a resultant current to be indicated on the meter 9, proportional to the difference in temperature. The meter readings may be biased by the addition of a resistance R in series with the winding 8, and a thermal switch 18 is added across the meter to shortcircuit it after switching on the apparatus until a bimetallic strap heated by a coil 19 opens the switch contacts. A change-over time switch 16 energizes the coil 15 of an arresting device acting on the meter 9 simultaneously with the cutting off of supply to the coil 11, in order to determine the reading before coil 10 starts to cool. In a modification the windings 8, 10 are supplied from a common D.C. source, the meter 9 being connected from the mid-point of a resistor across the D.C. supply leads to the common terminal of the two windings. Alternatively, the windings 8, 10 and their D.C. supply may be replaced by two thermo-couples connected in opposition through the meter 9.
Patent GB-185967-A (GB)
Title: Improvements in and connected with wireless telegraphy and telephony apparatus
IPC: H05K7/02
Filed: 1921-09-29
Abstract: 185,967. Rees, H. P. P., (known as Rees, H. P.). Sept. 29, 1921. Transformers; regulating transformers.- In a wireless valve receiving-apparatus, the aerial inductanoe and the associated reaction coil are mounted in a casing 1<a> which fits like a drawer into the main casing A, the coil connections being made by contacts 5 - - 8 engaging springs. The coils are preferably wound as described in Specification 158,455, [Class 40 (v), Wireless signalling &c.], and one of them is secured to the floor of its casing 1<a>. The other coil is supported on sliders, and is adjusted to vary the coupling by a knob 9. The aerial coil may be in sections connected to studs on the front of the casing 1<a>, cooperating with a switch 11 for tuning. A number of interchangeable casings 1<b>, 1<c> &c., each designed to suit a certain range of wave-lengths, may be substituted for the casing 1<a>, and each casing may be fitted with a coloured indicator. A second recess in the main casing A receives a sliding casing 20<a> containing the inter-valve transformers which are connected up as the casing is pushed home, by studs 28 - - 31 engaging springs in the main casing. A suitable number of casings such as 20<a>, are shown at the left of Fig. 4, each bearing a wave-length indicator. The transformer coils are preferably wound as described in Specification 158,455. [Class 40 (v), Wireless signalling &c.]. They may be wound separately and placed side by side, or one may be wound over, or alongside, the other.
Patent GB-429461-A (GB)
Title: Improvements relating to crushers for stone or like material
IPC: B02C1/06
Filed: 1934-09-08
Abstract: 429,461. Crushers with vibrating jaws. WETTLAUFER, W. L., 40, Pearl Street, Buffalo, New York, U.S.A. Sept. 8, 1934, No. 25886. Convention date, Sept. 8, 1933. [Class 59] The movable member of a stonecrusher is positively driven so as to move bodily in a plane passing through the fixed and movable jaws against the restraint of springs. In Figs. 2 and 3, the double-acting jaw 15 is mounted on eccentrics 16 and is prevented from rotating by pairs of horizontal springs 32 bearing on the casing and a stop 34 on the jaw respectively other vertical springs bearing on the casing and stops 34 to support the weight of the jaw. The fixed jaws 19 are pivoted at 21 and are adjustable at their lower ends by wedges 24 acting on breakable tie plates 22 maintained in contact with each jaw by spring-tensioned rods 25. Instead of the tie-plates 22, toggles 29, Fig. 6, under the action of springs 30 may be used, the toggles collapsing under excessive pressure. The crushing surface of each of the jaws is of vee-shape having a flared inlet for the insertion of material to be crushed.
Patent GB-403484-A (GB)
Title: Improvements in apparatus for the teaching of mechanics
IPC: G09B23/10
Filed: 1932-09-19
Abstract: 403,484. Tension indicators for cords. CLARKE, W. O., St. John's School, Leatherhead, Surrey. Sept. 19, 1932, No. 25967. [Class 106 (ii).] An apparatus for demonstrating the laws of motion comprises a trolley adapted to be moved over a trace-receiving surface, a vibrator, such as a leaf-spring, carried by the trolley and a pen or the equivalent carried by the vibrator in position to make a trace on the receiving surface. The trolley 10 is mounted on wheels 11 so that it can be drawn, by means of an attached elastic cord or the like, over a paper or like surface. A bridge 12 secured to the top of the trolley carries two leaf-springs 13, 14, which constitute vibrators and one of which carries a pen 15 for tracing a time-curve on the paper sheet, while the other carries an adjustable weight 16 by means of which the periods of the two vibrators may be made equal. The two vibrators are caused to move in opposite directions so as to exert no resultant force on the trolley. The tractive force is applied to the trolley through a lever 17, pivoted to the trolley at 18 and to which is attached one end of a spring 20, the other end of which is fixed to the trolley. The force is thus applied to the trolley in part through the spring 20, which yields to an extent proportional to the force, and a force-curve is traced on the paper by a pen 23 which is attached to a rod 22 fixed to the lever 17. The pen 23 in this instance moves along a curved path, but by controlling the pen through a lazy-tong linkage suitably guided the pen may be caused to move in a rectilinear path relatively to the trolley. The mass of the trolley may be varied by means of weights 24. According to the Provisional Specification, a friction brake may be provided for varying the force of friction acting on the trolley, and a scale or scales, suitably calibrated, may be furnished to show the displacement of the pen or the value of the force applied.