baber/WOPTO huggingface dataset:
Patent GB-309335-A (GB)
Title: Machine for making helically grooved actuating members for steering gears
IPC: B23C3/32
Filed: 1928-05-29
Abstract: 309,335. Haddan, P., (Ross Gear & Tool Co.). May 29, 1928. Milling helical surfaces; chucks.-In a machine for cutting helical grooves of varing pitch in the actuating members for steering gears described in Specification 309,321, the blank is rotated in unison with a master member mounted on a parallel axis and is milled by means of a cutter mounted in a frame which is rocked under the control of a pin engaging the master member. The headstock carries a spindle 2a in which is non-rotatably fitted the shank 21<e> of a chuck 21, the head being longitudinally adjustable by means of a nut 2<x> engaging the spindle end. The chuck is provided with a rib 21<a> engaging a shoulder on the blank B and a screw ring 23 serves to clamp the jaws 22 against the reduced end b<2> of the blank. The other end of the blank is mounted in a socket 20 carried in the tailstack 12a. A cross-slide 8 adjustable by means of a hand-wheel 18<c> carries bearings 8<d>, 8<x> for the trunnions of a rocking member 9b which supports the cutter spindle 10 driven from a pulley 10<d>, a thrust bearing being provided at 10<b>. The rocking frame also carries an adjustable pin 11 engaging the groove in the master grooved member C. The member C rotates in bearings 8<a>, 8<b> on the slide 8, one end being splined at 7<e> and engaging a grooved member 7b to provide the driving connection. The blank and master member are rotated in unison from driving-pulleys 6b through gearing comprising worm gears 6<a>, shaft 4, spiral gears 4<c>, shaft 3. and worm gearings 2<b>, 3<b>. A clutch 3<r> operated by a lever 3
 is provided in this train. A segment 99 attached to the rocking frame coacts with a fixed pointer 9<t> to indicate the position of the cutter relative to the groove to be cut. In operation, the blank and master member are first held stationary while the milling cutter is fed to its full depth with the racking frame at one end of its movement. The clutch 3r is then engaged and the blank and master member rotated in unison, the frame being thus rocked over until the groove is completely formed.
Patent GB-800072-A (GB)
Title: Improvements in apparatus for controlling the flow of liquids and slurries
IPC: G01F1/24
Filed: 1954-05-27
Abstract: 800,072. Automatic flow control systems. VICKERY'S, Ltd., and BARDING, E. April 25, 1955 [May 27, 1954], No. 15696/54. Class 38 (4). [Also in Groups XXIX and XXXVII] In a system for automatically controlling the rate of flow of liquid or slurry upwards through a tube, movement of a float within the tube relative to a pair of vertically spaced elements outside the tube electrically controls a valve adjusting the rate of flow. In Fig. 1 slurry is pumped through valves V4, V3 and upwards through a vertical pipe A. Within pipe A a venturi is formed by a sleeve 13 having V-shaped notches so that a suitably weighted plastic float E carrying an iron ring remains in the neutral position shown when the rate of flow of slurry has the desired value. If the rate of flow varies, movement of the float in a corresponding sense increases the inductance of a coil C1 or C2 so that the outputs of transformers T1 and T2 are unbalanced to operate a D.C. differential relay 17 and thus energize a relay R2 or R1. This in turn energizes a solenoid-operated valve VI 1 or V2 to increase or decrease the pressure applied to the pneumatically operated valve V4 and thereby close or open it to the extent necessary to correct the rate of flow. Valves 44, 45 may be set manually to determine the rate of change of pressure-operating valve V4 or they may be respectively adjusted automatically in dependence on the coil currents of differential relay 17. The characteristics of the control system may be adjusted by alteration of the shape of sleeve 13, by alteration of the spacing of coils C1, C2 and by alteration of the weight of float E. The construction of the float, differential relay and valves is described. Arrangements in which the float differentially controls electromagnetic or electrostatic couplings are referred to. Operation of valve V3 by a reversible servomotor is also referred to.
Patent GB-1082599-A (GB)
Title: Improvements relating to consumable anode electrode arc-welding
IPC: B23K35/38
Filed: 1966-04-07
Abstract: 1,082,599. Welding by fusion. C.T. JACOBS April 7, 1966 [April 8, 1965; April 12, 1965], No. 15720/66. Heading B3R. In order to establish spray transfer in electrode positive arc-welding in a shielding gas, e.g. carbon dioxide or helium, in which transition from globular to spray transfer does not occur at any value of welding current, spray transfer is first established in a shielding gas, e.g. argon, in which transition to spray transfer occurs at a critical current, and the shielding gas is changed to the required shielding gas while the current is maintained above the critical value. Preferably the power supply has a drooping characteristic. If a flat or rising characteristic is required during welding, the welding machine is provided with a control to change the characteristic from a drooping characteristic after the spray transfer in the welding gas has been established. Electrode materials referred to are Al, Ni, Cu, Fe.
Patent GB-110421-A (GB)
Title: Improvements in and relating to Dynamo-electric Machines.
IPC: H02K23/52
Filed: 1916-11-03
Abstract: 110,421. Midgley, A. H., and Vandervell & Co., C. A. Nov. 3, 1916. Machines with two or more armatures; exciting. -A dynamo-electric machine for use in connexion with internal-combustion engines &c. has a stationary field magnet and two armatures a, d, the armature d being fixed inside the armature a so that they rotate together and the field-magnet flux can pass through both armatures. The armature a may be used to generate current for lighting, or it may serve as a motor armature to start the engine; the armature d is a standard magneto armature fitted with primary and secondary coils e, f for ignition purposes. The commutator and brushes pertaining to the armature a are arranged at one end of the shaft of the machine, and the interrupter, distributor, &c. pertaining to the armature d are placed at the other end of the shaft. Slots n are provided in the armature a. The field magnet may be provided with divided poles l, m having extended pole-shoes which may be fixed or movable in the circumferential direction; intermediate regulating-poles p and regulating commutator brushes may be provided. The field-magnet coils s may be connected to the battery by a separate switch so that, by interrupting the fieldmagnet circuit, the armature d may be rendered inoperative and the engine stopped.
Patent GB-137240-A (GB)
Title: Improvements in and relating to electric cooking or heating vessels and apparatus
IPC: H05B6/12
Filed: 1918-12-23
Abstract: 137,240. Lauth, C. H. Dec. 23, 1918. Heating by electricity.-In cooking and like heating apparatus in which current passes through the shell of a vessel, contacts are secured to the vessel to engage in a readily detachable way with .the supply terminals or with the terminals of a secondary coil. The contacts c, shown in Fig. 1 as knife contacts, may be cast in the wall of the vessel v, or may be soldered, welded, brazed, or bolted thereto. Spring contacts d are mounted on the secondary s of a transformer. In a waterheater, terminals on the bottom of a tank are bolted to the secondary terminals. In another arrangement, the contact consists of several lugs secured to the vessel, each lug being bolted to a lamination of the secondary. The resistance of the vessel between the contacts exceeds 0.007 ohm in the arrangement shown in Fig. 1, and exceeds 0.0001 ohm in another arrangement.
Patent GB-560306-A (GB)
Title: Improvements in electrical lightning arresters
IPC: H01T4/20
Filed: 1942-11-09
Abstract: 560,306. Lightning arresters. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, and RYDBECK, G. Nov. 9, 1942, No. 15793. [Class 38 (iv)] A lightning arrester comprising a number of discharge gaps, 1 (or groups thereof) alternating in series with voltage dependent resistances 3 is reduced in height by arranging the gaps and resistances in separate piles side by side. The insulating members 4 between the resistance, elements are arranged to constitute the dielectric condensers forming potentiometric means to equalize the voltage on the gaps and the insulating members 5, which extend between the piles, form condensers which shunt the resistances 3. Suitable connections are effected between the parts by metal coatings on the insulating members; supplemented by additional connections 6. The piles are arranged in a cylindrical insulator 7 having metal ends 8, 9 carrying terminals. Resistance elements 2 may be arranged in shunt with each gap. Fig. 2 shows the circuit established.
Patent GB-1110649-A (GB)
Title: Acid purification process
Inventor: READ WALTER FRANK
IPC: B01D7/00
Filed: 1967-04-06
Abstract: A sublimable polycarboxylic acid, e.g. terephthalic acid, containing an impurity more volatile than the acid to be purified, is purified by heating the impure acid in the presence of a carrier gas to form a vaporous mixture of the acid and its more volatile impurity, adding the same acid in purified solid form to the vaporous mixture, and separating the resulting solid condensate of purified acid from the mixture.  The process is of particular use in the purification of terephthalic, containing p-carboxy benzaldehyde as impurity, which is obtained by the oxidation of p-xylene.  The preferred carrier gas is steam.  The impure acid may be subjected to the treatment more than once to get a purer product.  When the acid is vaporized and condensed in several stages some of the condensed acid from one stage is separated and recycled for use as the condensing medium in that stage and the remainder is revaporized in the next stage. When inpure terephthalic acid prepared by the oxidation of xylene is purified by the process it is advisable to carry out a preliminary purification e.g. by leaching or washing with a suitable solvent.
Patent GB-1128166-A (GB)
Title: Improvements in drying apparatus
Inventor: EASTCOTT JOHN RUSSELL
IPC: E04G21/06
Filed: 1965-04-14
Abstract: 1,128,166. Drying aggregate layers. LACEYHULBERT & CO. Ltd. 1 April, 1966 [14 April, 1965], No. 15903/65. Heading F4G. [Also in Division E1] In apparatus for drying an aggregate layer 2 above a concrete roof 1, the layer is covered, temporarily or permanently, by an impervious membrane 4 to which suction connections, e.g. pipes 10, 20, 30, are sealed where they pass through apertures in the membrane, and the moisture-laden atmosphere from the layer is withdrawn by a suction pump 43 connected to at least one connection. The pipes 10, 20, 30 are apertured and may have a coaxial strainer 11, and are connected to the pump via a union 41, cap 22 and reurn bend 31 respectively. Horizontal pipes may be utilized which may be inset in drainage grooves in the upper surface of the roof, or the pipes may be replaced by a rubber suction cup temporarily positioned over a hole in the membrane in conjunction with a porous mesh interposed between the layer and membrane.
Patent GB-554659-A (GB)
Title: Improvements in skein holders for wool winding
IPC: B65H49/30
Filed: 1941-12-10
Abstract: 554,659. Winding wool &c. PACKMAN, P. J. Dec. 10, 1941, No. 15923. [Class 120 (ii)] In a holder for use in unwinding hanks'or skeins of wool &c. of the kind having a rotatably mounted carrier supporting a number of hinged arms having skein-supporting means at positions spaced from their hinges and diverging outwards from their hinges when opened apart for use, the means for supporting the skeins &c. comprises a finger pivotally mounted in each arm so as to be movable from one extreme position, in which it lies substantially along or flush with the arm, to another position in which it extends outwardly from the arm to form a crutchlike support for the skeins &c. As shown the finger 23 is hinged and pivoted to the arms 16 by a cranked portion disposed tranversely of the arm and secured thereto by a cover plate 22 which also secures the cranked end 21 of the link 18 by which the arm is connected to a slider 19 mounted on a column 13 attached to a block 14 and pivotally supported on a pin 10 carried by a clamp 11 by which the holder is secured to a support; the pin 10 may be mounted in a weighted base. The block 14 has upstanding lugs 15 between which the lower ends of the arms are hinged and slider 19 has a number of radial projections 20 in each of which a cranked end of a link 18 is pivoted; a light spring 25 is interposed between the slider and block 14, so that when a skein is supported by the finger 23, the spring will be slightly compressed to tension the skein. The arms are retained in the closed positions shown on the left of the Figure by a resilient or other ring slipped over their free ends.
Patent GB-904931-A (GB)
Title: Process for the production of acrylic acid methyl ester
IPC: C07C233/09
Filed: 1960-05-05
Abstract: <PICT:0904931/IV (b)/1> <PICT:0904931/IV (b)/2> Acrylic acid methyl ester is prepared by the esterification with methanol, of the sulphate of acrylamide prepared by the hydrolysis of acrylonitrile with 85% sulphuric acid in a molar ratio of acid to acrylonitrile of 1.1:1.  The sulphate is contacted countercurrently with methanol and water in a molar ratio of 1:4:0.5-1, at 120-170 DEG C., in an esterification stage wherein an aqueous salt mass of the ammonium bisulphate is obtained as the sump product, and the top product comprises ester, and residual methanol.  The methyl ester is separated by extractive distillation with water, and subsequently distilled from the water to yield pure ester.  The esterification, extraction and distillation stages are operated under reflux and may be at atmospheric pressure, and stabilizers such as phenothiazine and methylene blue are present.  In an example (Fig. 1) acrylonitrile is hydrolysed with 85% sulphuric acid, in vessel (2) and the product passed to esterification column (10), into which is passed methanol (72) and water (14).  The head product, a binary azeotrope of ester and methanol is extractively distilled with water in column (20). The product is condensed (26), separated (27) and dehydrated in column (30) to yield pure vaporous ester which is condensed (86) and collected (87).  Methyl alcohol is stripped (74) from the water and recycled and the ammonium bisulphate worked up as described in the parent Specification. The apparatus and that of the parent Specification may be combined and a suitable modification may be made by the use of valves (88 and 89).
Patent GB-983625-A (GB)
Title: Improvements in or relating to double-row planetary gearing
IPC: F16H1/22
Filed: 1962-04-26
Abstract: 983,625. Epicyclic gearing. CESKOSLOVENSKE ZAVODY NAFTORYCH MOTORU PRAHA, and J. SREJTR. April 26, 1962 [April 26, 1961], No. 16048/62. Heading F2Q. Tooth pressures in a double row epicyclic gear are equalized by two ring gears 5<SP>1</SP>, 5<SP>11</SP> supported for relative rotation in an annulus 3, one ring gear 5<SP>11</SP> having radial freedom 8 in the annulus and the two ring gears being connected to the annulus by an equalizing lever 10. The lever 10 is connected to the ring gears by ball and sliding block joints. The gear teeth may be straight spur, helical or double helical and the planet pinions may be separate or integral. Specification 983,624 is referred to.
Patent GB-1466015-A (GB)
Title: Welding apparatus
IPC: B23K11/00
Filed: 1975-04-18
Abstract: 1466015 Welding by pressure Y AOYAMA 18 April 1975 [22 April 1974 24 April 1974] 16089/75 Heading B3R Resistance welding apparatus for welding small parts such as nuts and bolts to largersize components, e.g. steel sheets, comprises an upper movable electrode 1, a lower fixed electrode 2, means for releasably holding at a position spaced from and above the welding position a part fed between the electrodes, the movable electrode being arranged in its advance to release the part from the holding means and advance it to the welding position at a rate such that it is held in contact with the end face of the electrode. The parts to be welded may be fed along an elongate feed strip or channel by their own weight or by an air blast and are held in the clamping head by, e.g. (Fig. 6) resiliently loaded pressure bars 18. The clamping head may provide a guide sleeve 15, Fig. 6, for the upper electrode and the latter preferably has a central locating pin 1a on its lower face for location in a central aperture or dimple (Fig. 11) in the part to be welded. The lower electrode may have a fixed or, as shown in Figs. 8, 11, resiliently retractable locating pin for locating the lower workpiece and possibly for co-operation with the locating pin of the upper electrode. As shown the parts to be welded are provided with projections 3, Fig. 8, for projection welding.
Patent GB-873781-A (GB)
Title: Novel sulphanilamido-pyrimidines and acid addition salts thereof and a process for the manufacture of same
IPC: C07D239/69
Filed: 1960-05-06
Abstract: The invention comprises aminoacetyl sulphapyrimidines of the formula <FORM:0873781/IV (b)/1> wherein R1 and R2 are each hydrogen or an alkyl group, preferably containing up to seven carbon atoms, e.g. methyl, and acid addition salts thereof, and their preparation by reacting the corresponding chloroacetyl-sulphanilamido-2,4-dimethoxy-pyrimidine with an amine HNR1R2, preferably in an aqueous or alcoholic medium at room temperature or above.  N4 - Chloroacetyl - 6 - sulphanilamido - 2,4 - dimethoxy - pyrimidine used as a starting material is made either by reacting 6-sulphanilamido-2,4-dimethoxy - pyrimidine with chloracetyl chloride or by chlorosulphonating chloracetanilide and reacting the resulting p-chloracetylamino-benzenesulphonyl chloride with 6-amino-2,4-dimethoxy-pyrimidine.ALSO:Antibacterial preparations for oral or parenteral administration comprise acyl-sulphanilamido-pyrimidines of the formula <FORM:0873781/VI/1> or acid addition salts thereof, wherein R1 and R2 each represent hydrogen or an alkyl (preferably methyl) group, in conventional solid or liquid dosage forms such as tablets, capsules or injectables together with solid or liquid carriers.
Patent GB-462286-A (GB)
Title: Improvement in methods of stripping and transferring photographic films
IPC: G03C11/12
Filed: 1935-06-04
Abstract: 462,286. Photographic stripping processes ; photo - mechanical printing- surfaces. PAPER PATENTS CO. June 4, 1935, No. 16157. Convention date, Nov. 23, 1934. [Class 98 (ii)] A method of stripping and transferring a film bearing a negative image from its backing to a glass plate, as for the purpose of assembling several such films on one plate prior to printing them photographically on copper for etching in the production of a photo-mechanical printing-surface, consists in (1) preparing the film for stripping as by coating first with rubber stripping solution and then with a body-giving collodion solution, (2) loosening the adhesion of the film with its backing as by soaking in water which may be slightly acid,. (3) registering the film on a device facilitating application of a transfer sheet, (4) applying to it in register a flexible transfer sheet incapable of distortion under squeegee pressure, such as a sheet of celluloid, or of material sold under the Registered Trade Mark " Micarta," and squeegeeing the film into contact, (5) registering the film with its flexible backing in desired position on the glass plate and squeegeeing into contact, and (6) stripping off the flexible backing. The registering device may be any apparatus in which marks on the film are adjusted into definite relation with guides against which the edges of the flexible transfer sheet are applied, and similar guides are provided on the glass plate.
Patent GB-164731-A (GB)
Title: Improvements in the process for separating-out metallic chromium
IPC: C25C1/10
Filed: 1921-06-11
Abstract: 164,731. Liebreich, E. June 11, 1920, [Convention date]. Chromium, depositing. - In depositing chromium, either or strongly acid or an alkaline electrolyte is used, the green modification of chromium salts being used as primary material. If not already in this form they are converted by previous boiling, or by a temporary raising of the current density. With an acid solution a cathode of carbon, graphite, or platinum is used. The current-density may be as low as 0.1-0.2 amps. per sq. cm. The alkaline bath is prepared by adding potassium or sodium lye; it is stated that alkaline chromites are formed.
Patent GB-117375-A (GB)
Title: Improvements in Firegrates for Furnaces with a view to Facilitating the Removal of Ash.
Inventor: STINCHCOMBE THOMAS WILLIAM
IPC: F23H7/00
Filed: 1917-11-06
Abstract: 117,375. Stinchcombe, T. W. Nov. 6, 1917. Grates.-A trough fire-grate has at the bottom a series of pusher plates for removing the ashes. The grate shown consists of two longitudinal ranges of fire-bars a, a<1>, b, b<1>, each bar being in one or two pieces, and supported on bearers e, e', and on the edges of a water-cooled trough c containing the pusherplates f, f<1>, f<2>, f<3>. These are arranged in steps, being supported by the sides of the trough and by the rear and bottom plates. Each of the plates f, f<1>, f<2> is attached by a pin to a crossbar h, the ends of which move in slots in the sides of the trough. The pins move in short slots in the plates, so that a forward movement of the rearmost plate is successively imparted to the other plates. The plates may be moved by any suitable mechanism separately, successively, or as a whole.
Patent GB-1383964-A (GB)
Title: Thermostats
IPC: H01H37/52
Filed: 1972-04-07
Abstract: 1383964 Thermal switches ROBERT BOSCH GmbH 7 April 1972 [8 April 1971] 16183/72 Heading H1N A thermostat has a bimetal 12 welded at one end to a plug 27 in the end of a casing 11 and carrying at its other end a contact 19 cooperating with a fixed contact 18 formed by the end of an adjusting screw 17 threaded into a support 15 connected to a connection element 14 in an insulating socket 13, screw 17 being locked by a spring clip 20, and casing 11 being attached to socket 13. A mounting sleeve 33 is secured over casing 11 and socket 13, sleeve 33 having a screwthread 39 and a hexagonal portion 34 and having an opening 47 closed by a screw 48 for access to adjusting screw 17. A heater coil 49 may be mounted on bimetal 12 connected between bimetal 12 and a pin 52 in socket 13.
Patent GB-1180196-A (GB)
Title: Improvements in or relating to Phase Changers
IPC: H01P1/185
Filed: 1968-04-04
Abstract: 1,180,196. Phase shifters. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 4 April, 1968 [15 April, 1967], No. 16306/68. Heading H1W. A reflective phase-changer comprises a capacitance diode 4 arranged between the ridge 2 and opposite wall 3 of a ridged waveguide 1 to act as a switch, the diode being in series with the adjustable transformed reactance of a coaxial stub 7, 11 and in parallel with the transformed reactance of an adjustable short-circuited section 18 of the ridged waveguide 1. The reactances are adjusted by respective pistons 9, 5 to obtain a desired shift of phase (e.g. 180 degrees) upon switching, the reflection factors for the alternative phase angles being equal. One pole of the diode 4 is connected to the inner conductor 7 of the stub which extends through a coaxial aperture 10 in the ridge 2. The other pole is connected to a lead 15 which passes through a dielectric annulus 16 forming an R.F. by-pass capacitor. A waveguide cavity 13 is resonant at the R.F. frequency.