baber/WOPTO huggingface dataset:
Patent GB-772156-A (GB)
Title: Improvements in or relating to tuner devices for radio receivers
IPC: H03G3/22
Filed: 1955-03-22
Abstract: 772,156. Automatic tuning of radio receivers. GENERAL MOTORS CORPORATION. March 22. 1955 [April 21. 1954], No. 8283/55. Class 40(5) A stop on signal type radio receiver comprises a mechanism for causing the tuning to scan a given wave range and a stop device the flow of current to which is controlled by an electronic circuit responsive to the strength of a received signal. A second parallel conductive path for the current to the stop device being provided. and controlled in response to the strength of the received signal means being provided to vary the controlling effect of the second path whereby the strength of signal at which the tuner stop may be varied. In the circuit shown momentary operation of the button 118 completes the circuit of a relay 144 causing it to operate. Contact 184 of the relay then causes the left hand part of valve 158 to become conductive and thus to provide a holding circuit for the relay when the button is released. The operation of the relay armature also removes a latch from the tuning mechanism 138 allowing the motor 4 to cause the tuning to commence scanning. When a signal of sufficient strength is tuned in the output from the final IF valve 6 provides a sufficient voltage across the load 32 of the signal diode 22 to apply a sufficient bias through resistor 30 to the grid of the right hand half of valve 188 to cut off the left hand half and so release the relay. The operating circuit for the relay includes a second valve 150 biased at its grid by a voltage derived from the AGC rectifier 62 and provided in its cathode circuit with a potentiometer, adjustment of which determines the strength of signal necessary to release the relay.
Patent GB-589782-A (GB)
Title: Improvements in the fixation of pigments on textile materials
IPC: D06P1/44
Filed: 1945-04-04
Abstract: White or coloured pigments are fixed on textile materials by means of a condensation product of an aliphatic aldehyde and an alkyl, aralkyl, cycloalkyl or aryl substitution product of a biguanide.  The water-soluble condensation product may be applied to the material in conjunction with the pigment by printing, stencilling or "all over" printing with an engraved roll, and thickeners such as gum tragacanth may be added.  Fixation of the pigments is obtained by heating, for example, to 80 DEG  to 100 DEG  C. to insolubilize the condensation products.  In an example, a lustrous cellulose acetate satin fabric is printed with a paste containing titanium dioxide, gum tragacanth and a solution containing tartaric acid and a condensation product obtained from formaldehyde and the substituted biguanide obtained by melting ethylene diamine hydrochloride with dicyandiamide, and is then passed through a stenter at 90 DEG  C. for 3 minutes. Substituted biguanides and polyguanides are obtained by the action of dicyandiamide on the hydrochloride of a primary or secondary alkyl-, aralkyl-, cycloalkyl- or aryl-amine, a number of which are specified. Specification 567,493 is referred to.
Patent GB-512847-A (GB)
Title: Method of producing flour or dough from wheat or other kinds of corn
IPC: A21D13/02
Filed: 1938-03-18
Abstract: 512,847. Reducing wheat &c. PETERSEN, H., MUNKE MOLLE AKTIESELSKAB, and AKTIESELSKABET NIRO ATOMIZER. March 18, 1938, No. 8394. [Class 58] [Also in Group VI] Wheat or like grain is soaked in water and then ground or forced through small holes to form a paste like mass; water is added to this paste by a homogenizer or similar machine to form a pulp which is then transformed either to a powder or flour by atomizing it in a current of hot air or other gas, or to a dough by filtering off the husk portion and then extracting some of the water by centrifuging, atomizing or by osmosis action. Gluten, casein, bromate or other flour improvers may be added and the content of gluten may be increased by removing some of the starch by washing with water.
Patent GB-514990-A (GB)
Title: Improvements in or relating to electrical control systems
IPC: G05B11/01
Filed: 1938-03-18
Abstract: 514,990. Thermionic relay circuits. TAGLIABUE MANUFACTURING CO., C. J. March 18, 1938, No. 8412. Convention date, April 17, 1937. Addition to 512,984. Drawings to Specification. [Class 40 (v)] [Also in Groups XXXVIII and XXXVI] The control system of the automaticallybalanced bridge type described in the parent Specification and wherein a mirror galvanometer controls the balance motor by means of a photoelectric cell, a therm'onic valve amplifier and relays controlled by anode current, is modified in the following respects : (1) the grid bias control circuit arranged to provide two different time-constants under control of the relays is replaced by a circuit independent of the relays and comprising a capacity and resistance in series shunted by a resistance, to effect an initial rapid response of the valve (2) the shunt resistances which the relays connect up on operation are of such value as to cause the appropriate relay to vibrate when the system is approaching balance from either direction so that balance is effected in a step-by-step manner, but this vibration does not occur on rapid deviations of the galvanometer, (3) a resistance is included in the anode circuit to minimize current variation due to the inclusion of the shunt resistances on the relays.
Patent GB-735789-A (GB)
Title: Improved label tab for office equipment
Inventor: POSNER BERNARD BENJAMIN
IPC: G09F3/16
Filed: 1953-03-26
Abstract: 735,789. Filing papers. SHANNON, Ltd. March 19, 1954 [March 26, 1953], No. 8426/53. Class 16. Tabs. A label holding tab, for use on a file folder 7 or the like having along an upper edge a rigid bar 6 with its lower edge turned up and rearwardly to form a channel 9, comprises a single piece of sheet material 1 with its upper and lower edges 2, 4 turned over to form channels 3, 5 to receive the upper and lower edges of a label 18 and/or a transparent sheath 19 the lower edge 4 being adapted to slide in and engage the channel 9 in the bar 6 to prevent upward pull-off and the tab having one or more tongues 10 projecting rearwardly to hook over the top of the bar 6. The bar 6 is provided with hooked ends for suspension on rails and has depressions 14 or holes 24 for positioning the tab. The tab 1 has a flat central part 15 and flat upper and lower parts 16, 17 forming a forwardly convex shape to facilitate removal and insertion of the label 18, a central hole 21 being provided for gripping the label. The projections 10 are pressed out of the lower part 17. As shown in Figs. 1 and 4, a resilient tongue 11 is formed centrally by cutting away at 12 and a projection 13 is formed in the tongue adapted to engage one of the depressions 14. Side lugs 20 are bent forward at each side of the flat parts 16 and 17 to form abutments to hold the label longitudinally. As shown in Fig. 5, a single central projection 22 is pressed out rearwardly from the flat part 17 and two forward projections 23 are pressed out of the lower edge 4 so that when the lower edge 4 is engaged in the channel 9, the projections 23 press the tab rearwardly so that the projection 22 engages one of the holes 24. A vertical slot 25 is made at either side of the tab and the ends 26 forced forwardly to form end abutments.
Patent GB-1382827-A (GB)
Title: Method of and apparatus for forming splines
IPC: B21K1/30
Filed: 1971-04-01
Abstract: 1382827 Forging JOSEPH LUCAS (INDUSTRIES) Ltd 20 March 1972 [1 April 1971] 8489/71 Heading B3H A helically splined starter motor sleeve is made by forcing a helically splined tool 17 into or over the sleeve to displace the sleeve material to the desired form either internally or externally of the sleeve. In one embodiment the tool 17 is carried on a support 15 rotatably mounted in a carriage 13. The support 15 has a rearwardly extending screw 21 engaged with a fixed nut 22 to rotate the tool as it descends. The sleeve is mounted in a chuck 12. The inside diameter of the sleeve (30a), Fig. 4 (not shown), may be greater, equal to or less than the pitch diameter (30b) of the tool. The ends of the teeth (24), Figs. 2 and 3 (not shown), of the tool are relieved (27), (28). In an alternative embodiment the tool is fixed and the sleeve rotatably carried by the support 15. The nut 22 may be fixed to the support 15 and the screw 21 fixed to the apparatus frame 11. The rotation of the support 15 may be effected by a gear train instead of the nut and screw. In a further alternative the tool 17 is mounted for linear movement and the sleeve supported for free angular movement. If the wall thickness of the sleeve is thin it may be supported by three fluid pressure biased fingers (37), Fig. 6 (not shown).
Patent GB-539960-A (GB)
Title: Improvements relating to colloidal, gelatinous, mucilaginous and glutinous matter or compounds
IPC: C09H5/00
Filed: 1940-05-10
Abstract: 539,960. Vegetable colloids; clarifying aqueous suspensions. AFRICAN SISAL & PRODUCE CO., Ltd., WALSH, C. L., and MAY, J. May 10, 1940, No. 8501. [Class 121] [Also in Group I] Vegetable mucilages are caused to disperse more rapidly in water and therefore to be more effective in clarifying aqueous suspensions or slurries, such as coal slurries or fuller's earth effluents, by being mixed with a colloidal substance extracted from vegetable matter, such as sisal, Sanseviera, plants of the Agave family such as American aloe or henequen, as described, for example, in Specifications 517,729 and 537,794. The mucilages may be those extracted from linseed, bracken, Phormium Tenax, bulrush, papyrus, or may be alginates, water-soluble gums, gelatine, glue, isinglass &c. Specification 539,620 is referred to.
Patent GB-526466-A (GB)
Title: Improvements in or relating to wave transmission systems
IPC: H04B3/14
Filed: 1939-03-17
Abstract: 526,466. Impedance network. COLLARD, J. March 17, 1939, No. 8512. [Class 40 (iii)] The phase and frequency characteristics of a cable carrying a wide band of frequencies are compensated or simulated by means of a network which broadly resembles those described in Specifications 476,799 and 495,815 but in which the characteristics of the sections expressed as a function of the ratio of the reference frequency p of a section to the transmitted pulsatance W vary from section to section in an arbitrary but finely graded manner in accordance with the values of p. By this means the range through which the frequencies p are distributed need not go outside the highest working frequency, fewer sections are used and the overall attenuation is reduced as compared with the prior arrangements. Preferably the shunt arms of the sections are formed by an inductance in series with a condenser and resistance in parallel and the quantity R #-C/L is varied gradually throughout the sections. When the characteristic to be compensated or simulated can be analysed into a series of terms of the form A N .#<SP>N</SP> each term may be compensated by a separate group of sectors. The coefficient of each term can then be adjustable and the whole network is capable of compensating a number of different characteristics. Specifications 524,907 and 524,908 also are referred to.
Patent GB-151216-A (GB)
Title: Improvements in, or connected with, apparatus employed in operating ploughs, and other implements for cultivating land
IPC: A01B3/68
Filed: 1919-06-11
Abstract: 151,216. McLaren, J. & H., and Mc- Laren, H. June 11, 1919. Winding and paying-out apparatus on portable engines; brakes; tension-regulating winding and paying-out apparatus; control-transmitting gear.- In ploughing &c. apparatus in which the plough &c. is pulled to and fro by a rope or cable attached to a winding drum A, Fig. 1, mounted on a motordriven vehicle at each headland, a braking device is provided which automatically applies considerable additional braking pressure to the drum which is paying-out when the plough stops suddenly. Means are also provided for holding this device out of action while the windlass drum is being power driven. The brake shoe 7, Figs. 1 and 4, is pivotally connected to the bell-crank lever 8 which is acted on by a spring 10 of sufficient strength to apply the brake lightly when the rope is being drawn off normally. A rod 14 is passed through one arm of the lever 8 and is connected to a rod 11 which is pivoted to a fixed part of the apparatus and carries a weight 13 resting on the outgoing tail rope. If the plough &c. stops suddenly, the continued rotation of the drum due to its momentum continues the paying-out of the tail-rope which accordingly slackens and the consequent descent of the. weight 13 brings the upper end of the rod 14 into contact with the lever 8 and additional braking pressure is applied. In order to hold the braking-device out of action when the drum is winding, a rod or bar 17 is attached to the brake lever 8 so as to slide in its supporting brackets when the brake lever moves. The rod has a neck or portion of smaller diameter which when the brake is off occupies a position between the plates 18, 19 and opposite a locking- bar 16. This locking-bar is forked at its upper end to engage with the sliding drum pinion f<2>, and has a slot 16<c> capable of engaging with the neck on the rod 17. This latter engagement is effected whenever the drum pinion is thrown into gear, and the brake is consequently then prevented from coming into action.
Patent GB-1117395-A (GB)
Title: Improvements in or relating to kerb stones
IPC: E01C11/22
Filed: 1967-02-23
Abstract: 1,117,395. Road kerbs. E. HAYNES. 23 Feb., 1967, No. 8600/67. Heading E1G. A concrete kerb stone has an L-shaped recess in each end face so that drainage channels are provided between abutting stones, the channels communicating with a land drain under the footpath.
Patent GB-1334643-A (GB)
Title: Process for drying materials dyed in organic solvents
IPC: D06P1/92
Filed: 1972-02-24
Abstract: 1334643 Solvent dyeing process FARBWERKE HOECHST AG 24 Feb 1972 [25 Feb 1971] 8624/72 Heading D1B Textile materials, e.g. polyester yarn, which have been dyed by exhaustion from an organic solvent are dried by rinsing the material with a second organic solvent having low solubility for the dye and having a boiling point lower than that of the first organic solvent with which it is miscible and then evaporating the second organic solvent from the material. Second solvents specified have the general formula R-F where R is FCl 2 C-CFCl-, Cl 3 C-, Cl 2 HC- or F 2 ClC-CFCl-. Evaporation may be effected by heated air or reduced pressure and the solvent may be recovered. In the two examples polyester yarn is dyed in a perchloroethylene dyebath and then rinsed with 1,22-trifluoro-trichloro-ethane.
Patent GB-828697-A (GB)
Title: Improvements in or relating to tamping machines
IPC: E01B27/16
Filed: 1956-05-20
Abstract: 828,697. Percussive tools. MATERIEL INDUSTRIEL S.A., and CONSTRUCTIONS MECANIQUES SOC. ANON RENENS. March 20, 1956 [June 14, 1955], No. 8716/56. Class 124. A machine for tamping railway ballast comprises a main frame, at least one pair of carriers for tamping tools, a tool carrying structure movable upwardly and downwardly with respect to the main frame, means for moving the tool carriers towards and away from one another and motor driven means for vibrating the tools, the tool carriers being mounted on a vibrating framework, vibrated by a revolving eccentric mass, the framework being connected to the tool carrying structure by elastic components. As shown a monorail machine has rail engaging rollers 3 mounted on a frame 4 which supports, by means of pistons 6 and cylinders 7, a tubular structure 9. Tubular frameworks 13 are suspended from the structure 9 by elastic damping blocks 12, the frameworks 13 comprising horizontal tubes 13a connected at their ends by tubes 13b of inverted U-shape to the ends of which are pivoted tamping tools comprising telescopic rods 16, 17 and arms having spurs 20. The free ends of the telescopic rods are connected to the piston 21 of a piston and cylinder arranged so that upward movement of the piston forces the spurs towards one another and downward movement separates them. The structure 9 carrying the tools is vibrated by a vibrator 23 comprising a rotating eccentric mass. The height of the tool carrying structure is adjustable by means of the piston and cylinder arrangements 6, 7 and the machine may be locked to the rails by clamps 28 and springs 29. Two machines may be used, in parallel, one on each rail, and may be operated pneumatically or hydraulically.
Patent GB-640118-A (GB)
Title: Improvements relating to the mounting of an electrical apparatus case on a support member
IPC: H02G3/16
Filed: 1948-03-25
Abstract: 640,118. Instrument and meter casings. ENGLISH ELECTRIC CO., Ltd., and LLOYD, R. A. March 25, 1948, No. 8747. [Class 37] [Also in Group XXXVII] A case 1 containing electric apparatus, such as meters, is mounted between hollow pivots 4, 5 entering holes in the top and bottom of the case and one or both of the pivots constituting a cable entry. As shown, the pivots are located in the corners of the top and bottom walls. The pivot 5 is sealed by a screwed plug 9 and the pivot 4 is extended to form a conduit 10 for the lead-covered cables 12 brought from a duct 11, the lead covering being cut back above the pivot 4 to permit twisting of the cables on pivoting of the case. The cable entry in the pivot 4 is sealed by a felt disc, and ventilation is obtained by a pipe 14 extending from the case-interior through the conduit 10 to a duct 15 in the cable duct 11. Alternatively, the pipe 14 and the felt disc may be omitted and the conduit 10 serve for ventilation. The apparatus 3 may be mounted on the door 2, as shown, or in the case.
Patent GB-351021-A (GB)
IPC: C02F1/60
Filed: 1930-03-19
Abstract: Silicic acid is removed from liquids, for example feedwater, by treatment of the liquid at a pH value of 7 or above with insoluble or difficultly soluble metal hydroxides and the spent hydroxide is regenerated by treatment with water acidified by sulphuric acid or other mineral acid to a pH value of 6 or below.  Ferrous, ferric or zinc hydroxide may be used. Suspensions of the hydroxide may be stirred with the liquid or the liquid may be passed through a filtering layer of hydroxide.
Patent GB-609650-A (GB)
Title: Improvements in motor compressor units
IPC: C25D3/38
Filed: 1946-03-19
Abstract: 609,650. Air compressors. AKTIEBOLAGET ATLAS DIESEL. March 19, 1946, No. 8553. Convention date, April 14, 1945. [Class 8 (i)] [Also in Group XXVII] In a two-stroke engine compressor unit, opposed pistons in cylinders 2, 3 directed away from each other and a compressor piston 16 are connected to the same crank-pin. The compressor cylinder, which compresses scavenging air and externally-used fluid in separate chambers, may be vertical as shown, but alternatively the compressor may comprise a pair of V-arranged cylinders having pistons connected to the said crank-pin. The air is drawn through a filter 17 and delivered to ports in the lower walls of the cylinders, and further air is compressed by the piston 13 through a passage 19 for external use. The compressor may have a differential piston, and operate in two stages with an intermediate air cooler. When the compressor has two cylinders, one compresses the charge and the other compresses the air for external use.
Patent GB-1498276-A (GB)
Title: Treatment for metals in a liquid state
IPC: C21C5/34
Filed: 1975-03-04
Abstract: 1498276 Converter bottom CREUSOTLOIRE 4 March 1975 [11 April 1974] 9012/75 Heading F4B [Also in Division C7] A converter is provided with a series of tuyeres in the bottom, which tuyeres are in two groups such that each group is supplied with fluid at pressures adjustable independently of each other. In the preferred embodiment, a ferrous melt is refined to steel by blowing O 2  in through the tuyeres, each of which has a concentric pipe supplying fuel oil as a protectant. In Fig. 2, tuyeres 1, 2, 3 are supplied with O 2  at high pressure from line 10, and tuyeres 4-9 with O 2  at lower pressure from line 11.
Patent GB-178693-A (GB)
Title: Improvements in bottle, jar and the like soaking machines
IPC: B08B9/26
Filed: 1921-03-24
Abstract: 178,693. Hill, T. March 24, 1921. Bottles, washing and cleaning.-In machines of the type described in Specification 22292/14, the spokes within the rotating drum are dispensed with, the drum being formed by a disc having an out-jutting rim. The metal disc C is secured to a spindle B which rotates in bearings a mounted on a tank A. To the periphery of the disc are secured metal strips D of such shape as to give the required inclination to the bottles E; these strips are strengthened by a hoop D'. A removable shelf is fitted to form a support for the first charge of bottles; this is removed when the drum is half filled and replaced when the last charge has been inserted, so as to carry the bottles round. A smooth plate M fixed to the tank keeps the bottles in place, and conical drums J, J<1> on the spindle keep those near the centre immersed. A guard L protects the ends of the ribs and a catch K enables the drum to be retained in any position.
Patent GB-108332-A (GB)
Title: Improvements in or relating to Artificial Limbs.
Inventor: HOBBS EDWARD WALTER
IPC: A61F2/58
Filed: 1916-06-29
Abstract: 108,332. Hobbs, E. W. June 29, 1916. Limbs, artificial.-An artificial arm for amputation at or near the shoulder joint comprises a shoulder piece A and an arm C' pivoted thereto so that it is capable of movement by body-harness in two directions at right-angles. These two movements may be effected by the same operating-cord G secured to the opposite shoulder, a locking-bolt E actuated by a cord E<4> controlling the movement. A bolt A<1> secured to the shoulderpiece carries a block B provided with trunnions B<1> and wing B<3>, through an eye B<5> in which the locking-ball E passes; this wing is secured to a cap-piece C and carries a pulley D over which the cord G passes The other end of the bolt E passes through an eye C<8> and is urged forward by a spring E'. The control-cord E<4> passes through a penshaped recess E<7> in which it may be held; in the position shown, a stop A<2> prevents movement of the bolt E and cap C and thus causes the arm C' to move outwards on the trunnion B<1> when the cord G is operated; when the control-cord is released, the bolt E clears the stop A<2> and locks the cap and arm together and thus causes the arm to move forward as the operating-cord is tightened. Metal strengthening strips are provided for the cap and arm. In a simplified construction, the forward movement only is caused by the operating- cord slight sideways movement being allowed; in this case the sliding-bolt and control-cord are omitted, and a fixed stop connect the cap and arm.
Patent GB-232220-A (GB)
Title: Process and apparatus for evaporating liquids
IPC: B01D1/06
Filed: 1925-04-06
Abstract: 232,220. Niederbayerische Cellulosewerke Akt.-Ges., and Schneider, A. April 11, 1924, [Convention date]. Separate heater and evaporator apparatus.-Liquid to be evaporated circulates from a reservoir a through heating- members h by passage through openings f and down a central tube c fitted with a non-return valve d or a throttling - device such as small outlet openings. A mixture of liquid and vapour passes up the annular space h and is deflected downwards by a baffle k. A number of supply tubes c may pass downwards into one heating-member.
Patent GB-568544-A (GB)
Title: Improvements in and relating to electric wave oscillation generators
IPC: H05K7/02
Filed: 1943-06-08
Abstract: 568,544. Inductances. COMMUNICATIONS PATENTS, Ltd., and RINGHAM, G. B. June 8, 1943, No. 9193. [Class 38 (ii)] [Also in Group XL] An oscillator unit for use in electric wave apparatus comprises inductance 25 made of silver-plated iron-nickel alloy wire having a small coefficient of expansion mounted on a core of glass bonded wire or insulating material.