baber/WOPTO huggingface dataset:
Patent GB-561397-A (GB)
Title: Improvements in or relating to machines for making lock seamed sleeves
IPC: B21D51/28
Filed: 1942-09-14
Abstract: 561,397. Making cathode &c. sleeves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 14, 1942, No. 12902. Convention date, Dec. 14, 1940. [Classes 83 (ii) and 83 (iv)] A machine for forming seamed sleeves, e.g. for use as cathodes in thermionic valves, comprises a mandrel 18, a die 19 to fold a blank partly about the mandrel, a backing die 20 for the mandrel during this operation, means for folding the edges of the blank to form a lock-seamed sleeve, and a die 26 to compress the seam against the mandrel. A strip 1 is fed and bent by reciprocating grippers 6 having curved clamping faces, retrograde movement being prevented by curved jaw 7 and fixed anvil 8. While the strip is stationary one edge is flanged at 4 by a die 10, a rectangular window w is punched out, and a transverse, corrugation 1a is formed. 'During the next feed the length of strip previously operated on is fed under the mandrel 1 and, during the next rest, the strip is held against the mandrel by the die 19 while three. cutters 13, 14, 15 sever the sides of the window to remove the side 2, 4, Fig. 4, and leave 3 attached only to the strip in advance of it. Then the backing die 20 moves down to engage the mandrel, the die 19 moves up to produce a U-section, Fig. 5, the die 20 moves up, side dies 21, 22 move in to complete a cylinder, dies 23, 24 move in to flange the edge 3, Fig. 7, over the edge 4, the die 23 retires, the die 20 moves to the left and down to fold down the edge 3 and then retires again, the die 23 advances to press the seam thus formed and retires for the die 24 to fold the seam on to the sleeve, Fig. 10. Finally the dies 21 ... 24 all retire, the dies 20, 26 move farther to the left and the latter moves down to press the seam into the recess r in the mandrel. The sleeve thus formed with its tab is released by the mandrel being withdrawn axially through a stripper 25 and may be delivered'to a receptacle by a blast of air. The jaws and dies may be operated by cams as indicated or other known means. If a folded tab is required the cutters 13, 14, 15 are arranged to remove the part 3 and leave the parts 2, 4 attached to the sleeve.
Patent GB-108228-A (GB)
Title: Improvements in Miter Tools.
Inventor: HELMS ARTHUR JOEPTH
Filed: 1916-09-13
Abstract: 108,228. Helms, A. J., and Poley, A. F. Sept 13, 1916. Mitres; squares. - A square and mitre tool comprises a straight edge 1, preferably of angle-iron, and a member 2 pivoted thereto and provided with a saw guide 10 and a saw holder 14, an index 4 upon the straight edge being operated by a screw 6 to clamp the member 2. Graduation marks 1<a>, 1<b> upon the straight edge correspond to marks 2a, 2<b> on the member 2 for adjusting the members for measuring and cutting common rafters and hip rafters for buildings.
Patent GB-639406-A (GB)
Title: Improvements in and relating to static apparatus for producing photographs giving the appearance of relief
IPC: G02B13/00
Filed: 1947-05-14
Abstract: 639,406. Stereoscopic photography. RELIEPHOGRAPHIE SOC. POUR L'EXPLOITATION DES PROCEDES DE PHOTOGRAPHIE EN RELIEF M. BONNET. May 14, 1947, No. 12987. Convention date, May 15, 1946. [Class 98 (ii)] A photographic camera for producing multiple view stereoscopic photographs in which the shutter alone moves during exposure comprises a convergent lens of a diameter greater than the interocular spacing placed behind a horizontal row of beam inverting members and in front of and spaced from a light-sensitive surface covered by a vertical cylindrically lenticulated screen, the aperture ratio of the lens being equal to that of each of the lenticular elements. As shown, the camera which is provided with a roller blind shutter comprises a frame 1 in which are fixed a plano-convex lens 2 together with a recilinear row of inverting prisms 3, e.g. Dove prisms, and a lenticular screen 4 with vertical cylindrical elements covering a sensitive plate 5 which is arranged at a distance from the lens 2 equal to its focal length. Prints from the negative thus obtained are then made as described in Specification 622,919. If it is desired to produce inversion about two perpendicular axes so that prints may be made from the negative by ordinary contact printing, a further set of beam-inverting members may be inserted in front of the lens 2 or the prisms 3 may be roof-type Dove prisms. With the arrangement thus described the camera is focused for taking distant views. For photographing less distant objects a second interchangeable plano-convex lens having a focal length equal to the object distance may be inserted in front of the prisms 3. Several such lenses of different focal lengths may be mounted vertically in line one above the other and the appropriate lens moved into alignment with the prisms 3 and lens 2. By choosing two lenses 10, 11 of equal and opposite powers and arranging one of them 11 to move relatively . to the other 10 as by means of the screw 13, the camera may be made capable of continuous focusing adjustment, the camera being focused for infinity when the two lenses are in contact. To compensate for irregularities in the lens 2 and for the inherent focusing shortcomings of a lens each of the prisms 3 may be mounted so as to be adjustable in position in three mutually perpendicular directions. Instead of prisms the beam inverting members may be mirrors or afocal optical systems such as oppositely facing pairs of lenses having their focal points coincident so that they merely invert a parallel beam of light. Reference is made to the use of two identical lenses for the lenses on the opposite sides of the prisms 3 when the image produced is free from chromatic and spherical aberrations.
Patent GB-698763-A (GB)
Title: Improvements in and relating to chronographs
Inventor: JUNGHANS HELMUT
IPC: G04F7/08
Filed: 1951-05-31
Abstract: 698,763. Watches. JUNGHANS AKT.-GES., GEB. May 31, 1951. No. 12990/51. Class 139. A chronograph is characterized by the provision of a zero return lever which carries an intermediate wheel for the transmission of the movement of the fourth chronograph wheel to a centre chronograph wheel. The returning lever 1, Fig. 1, is pivoted at 11 and carries the intermediate wheel 2. A spring 14 urges the lever 1 to hold the end 1c thereof against the end 9b of a pivoted lever 9 in which position the wheel 2 meshes with a wheel 6 connected to the seconds hand and with the fourth chronograph wheel 3. Depression of a button 8 causes counterclockwise movement of the lever 9 and clockwise movement of the lever 1 to remove the wheel 2 from the wheel 6 and so stop the seconds hand. Depression of a second button 12 rocks the lever I fully clockwise so that its end la acts on a cam 5 connected to the seconds hand which is thereby brought to zero. The seconds hand again starts to rotate upon release of the buttons 8 and 12. The lever 1 is slotted at Id. In a modification, Fig. 2, not shown, the button 8 is replaced by a button which is movable back and forth along an arc to start and stop the seconds hand. The button having a cam surface which acts on the intermediate lever 9. In another embodiment, Fig. 3, only one radially and arcuately movable button 100 is provided. The button 100 has a cam surface which abuts a pin 105 on the returning lever 1. Upon counter-clockwise movement of the button 100 the lever 1 is moved to disengage the wheel 2 from the wheel b. Depression of the button causes the end la of the lever 1 to engage the heart shaped cam 5 and return the seconds hand to, zero. In another example, Fig. 4, the lever 9 is replaced by a lever 200 the end 200a of which engages the end 1c of the lever 1. A spring 202 normally urges the lever 200 against a stop 201 and so holds the wheel 2 away from the wheel 6. Depression of the button 8 allows the spring 14 to move the lever 1 against a stop 13 to cause engagement of the wheels 2 and 6 and the seconds hand rotates. Return to zero is again effected by depression of the button 12.
Patent GB-216877-A (GB)
Title: Improvements in automatic milking devices
IPC: A01J3/00
Filed: 1924-05-27
Abstract: 216,877. Maron, J. May 28, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Pails; lids and covers.- A milk pail has a funnel shaped lid 7 and is suspended from the cow by a girth.
Patent GB-541949-A (GB)
Title: Improvements in and relating to gas blast electric circuit breakers
IPC: H01H33/16
Filed: 1940-08-15
Abstract: 541,949. Gas-blast switches. HENLEY, J. A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 15, 1940, No. 13049. [Class 38 (v)] In an extinguishing-head switch employing a shunt resistance to reduce the severity of the transient voltage across the main contacts after the extinction of the arc thereat, the resistance is arranged in a circuit that is independent of the contact in the head, and preferably includes an auxiliary interrupting head for interrupting the resistance-current. Fig. 4 shows a four-break switch for a 200 kV. circuit and comprising main heads 50, 1, 2, 51 and auxiliary heads 20, 60 mounted on weather casings 13, 14 on heads 1, 2. The latter are inter-connected by a movable isolator bar 8 carrying contacts 19, 22 co-operating with the auxiliary heads, and L-shaped contacts 56, 57 co-operate with the heads 50, 51. The resistances are mounted in the casings 13, 14, 58, 59 which preferably contain non-inflammable insulating liquid. The heads are all of generally similar construction and comprise contacts movable in blast-nozzles in the heads and carried on pistons for operation by the blastpressure, the supply to the auxiliary heads being only released when the pistons in the main heads have uncovered ports after a certain travel, Fig. 3 (not shown). The supply from the pipes 11, 12 is led through manifolds 52, 53 to the main heads and through pipes 23 to the auxiliary heads. The resistances may be designed to divide the recovery-voltage equally over all the breaks or in any other proportions depending on the relative interrupting capacities of the breaks. When it is desired to operate the bar 8 before interruption of current from the main contacts occurs, the arms 19, 22 have horizontal tips 19a, 22a,. Fig. 2 (which shows a two-break switch employing only one auxiliary head 20), which tips prevent. formation of a resistance-arc prior to interruption of the main arc and thus ensure that the resistance performs its damping function. The Specification, however refers to rapid interruption and reclosure of the extinguishing head contacts one or more times before the bar 8 is rotated finally to open the circuit.
Patent GB-837868-A (GB)
Title: Method of and apparatus for measuring optical properties of substances
IPC: F23D14/12
Filed: 1956-04-27
Abstract: 837,868. Measuring optical properties photoelectrically. DEUTSCHE ERDOL-A.G. April 27, 1956 [April 30, 1955], No. 13066/56. Class 40(3). A substance on which optical data is required is placed between a polarizer and an analyser having periodic relative rotary movement about a light beam, the temperature of the substance is varied, and the emergent light intensity from the analyser is measured photoelectrically and recorded. Constant-intensity light from source A passed through polarizer E, the axial bore of temperature-varied chamber C containing test substance Q, and continuously rotating analyser F to photo-cell O whose output is fed via switch M to amplifier K and recorder L. At intervals the switch interrupts the photo-cell output and connects electric thermometer N via attenuator P to the amplifier. The light beam may be filtered before or after it passes through the test substance. The recording paper moves slowly relative to the analyser rotation and the form of the resultant traces as the substance cools indicates the effect of e.g. anistropy, Figs. 2-4 (not shown). Turbidity alone may be measured by interposing an analogous polarizer E<1> and removing polarizer E from the light path.
Patent GB-397254-A (GB)
Title: Improvements in and relating to amplifying thermionic tubes or valves
IPC: H01J40/00
Filed: 1932-05-06
Abstract: 397,254. Discharge apparatus. PRESSLER, M. A. E., 98, Elisenstrasse, Leipsic, Germany. May 6, 1932, No. 13132. Convention date, May 6, 1931. [Class 39 (i).] A hot cathode 5, which may be indirectly heated, is placed between an anode 2 and a plateshaped control electrode 3 which is arranged apart from the envelope and very near the cathode, the control electrode having a recess 4 and a photoelectric coating 6 and being provided with a terminal in order that it may be suitably biassed. The photoelectric coating may be on both sides of the control electrode, and the anode may be made small so as not to screen it. The control electrode is given a preliminary potential or is connected to the cathode or the anode through high ohmic resistances or the like, and the tube is stated to act as an amplifier. An auxiliary electrode, preferably consisting of wire loops connected to the anode, may be employed on the side of the control electrode remote from the anode. The photoelectric layer may consist of a monatomic laver of cµsium on an oxidized silver surface. Specification 232,159, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-127160-A (GB)
Title: Improvements relating to Machine Belt Fasteners.
Inventor: GRAY TOM FREDERICK
IPC: F16G3/02
Filed: 1918-08-13
Abstract: 127,160. Gray, T. F. Aug. 13, 1918. Belt fastenings.-The ends of a driving-belt are connected by a fastening consisting of a pair of plates a hinged together, and other similar plates are placed at short intervals on both sides of the fastening so that the belt can be readily shortened. The plates have spikes b which are passed through the belt and clinched. Self-locking hinge-pins as shown in Fig. 6 are used.
Patent GB-830160-A (GB)
Title: Improvements in slub catchers for textile winding frames
Inventor: NOBLE PHILIP GORDON
IPC: B65H63/06
Filed: 1957-04-25
Abstract: 830,160. Yarn clearing apparatus. LAW-  SON & SONS Ltd., R. P. April 24, 1958 [April 25, 1957], No. 13137/57. Class 120(2) A slub catcher of the kind having a slit or groove open at one end is provided with a lever d<SP>2</SP>, d' adjacent the open end of the slit or groove to depend there-across to prevent the yarn 1 escaping.
Patent GB-323702-A (GB)
Title: Improvements relating to ships' sidelight fasteners
IPC: B63B19/00
Filed: 1929-04-27
Abstract: 323,702. Pate, G., and Mercer, J. H. April 27, 1929. Ships' cabin lights.- Ships' side lights in which the binding lugs are individually operable into and out of engagement with shoulders on the glass holders, each shoulder being in a position intermediate the overhanging flange and spigot. The binding lugs 1 engage a shoulder 9 on the glass holder frame 4 between the spiot 7 and the external overhanging flange 10.
Patent GB-1214908-A (GB)
Title: Hydraulically actuated position control system
Inventor: MERCIER JEAN
IPC: B63H25/28
Filed: 1968-03-19
Abstract: 1,214,908. Steering gear J. MERCIER. 19 March, 1968 [24 March, 1967], No. 13167/68. Heading B7V. [Also in Division F1] Connection of a main high-pressure source 14 of hydraulic fluid to a main double-acting actuator 19, 20 for positioning a pivoted member 17 e.g. a ship's rudder is effected by manually or electrically displacing a two-way pilot valve 16 from its central neutral position shown to one or other of its two end positions e.g. the upper position thereby connecting source 14 through a line 71, connected ports 67, 68 of an hydraulically actuated main distributing valve 22, a line 66, ports 54, 52 of valve 16 and a line leading to the upper end of distributing valve 22 thereby displacing the latter from its central neutral position shown to a lower end position whereby the high-pressure source 14 is connected to chambers 83, 84 of actuator 19, 20 through line 71, valve 22, a line 72, a conventional double check valve 34<SP>1</SP> and lines 78, 81, 82 whilst actuator exhaust chambers 88, 89 are connected to the upper end of valve 22 to maintain it in its displaced position through lines 86, 87, 79 valve 34<SP>1</SP>, a line 73, valve 22 and line 66. Manual operation of valve 16 is effected by push rods 59a, 60a and electrical operation by solenoids 59, 60 controlled by a known automatic pilot 12 in a circuit including a potentiometer 64 actuated by the rudder. An alternative supply of hydraulic fluid for actuator 19, 20 in the event of failure of source 14 comprises a variable volume reversible pump 11 controlled by a manually operated wheel 10. The pump 11 delivers through a double check valve 34, sag lines 45, 96, a valve 90 which is normally held closed by pressure from source 14 but is now open, a line 97 and lines 78, 81, 82 leading to actuator 19, 20. With pressure source 14 operative but pilot valve 16 inoperative the delivery of pump 11 is directed through valve 34 and line 45 to a pilot actuator 18 which is also linked to rudder 17, and the resulting back pressure in line 45 is directed along a branch line 46 to the upper end of main distributing valve 22 thereby displacing it so as to direct fluid from source 14, through line 72, valve 34<SP>1</SP> and lines 78, 81, 82 to main actuator 19, 20 until the resulting pressure drop in line 46 is followed by return of valve 22 to neutral. The rudder 17 is thus moved stepwise.
Patent GB-704891-A (GB)
Title: Process of subdivision
Inventor: ZABA JAROSLAV BOGUMIL JAN
IPC: C09B67/00
Filed: 1951-06-04
Abstract: Solids are subdivided by dissolving in a solvent at a temperature above the normal boiling point of the solvent but below the critical temperature of the solution, and then allowing the solution to expand into a liquid in which the solid is at most sparingly soluble and which liquid is miscible with the solvent. Suitable solvents are liquid ammonia and liquid sulphus dioxide. In examples the following substances are dissolved in liquid ammonia in a pressure vessel:-phenothiazine, 1-methylamino-4-b -hydroxyethylaminoanthraquinone, 1 : 4-di-(b -hydroxyethylamino)-5 : 8-dihydroxyanthraquinone, 1 : 4-di-(b -hydroxyethylamino)-anthraquinone, and naphthalene; the solutions at room temperature to 100 DEG C. are allowed to expand through a small aperture into water at room temperature to 60 DEG C. to form finely-divided precipitates or aqueous dispersions. Surface active agents, e.g. octyl cresolethylene oxide condensation product, sodium salt of methylene-bis-naphthalene-2-sulphonic acid, and sodium di-isopropyl naphthalene-b -monosulphonate, may assist the formation of dispersions.  The Provisional Specification refers also to diamyl ortho-phthalate as a dispersing agent.
Patent GB-132198-A (GB)
IPC: F23M7/00
Abstract: 132,198. Reid, J. April 10, 1919. Air supply, regulating; furnace fronts.-The air-supply valves in a hollow furnace front are in the form of sets of louvers which can be readily removed for repair &c., and the operating-valve spindle is interlocked with the door latch. One arrangement of valves is shown in a rear view of the front plate in Fig. 1. A set of louvers 5 is arranged on each side between the wall 2 of the door opening and the wall 4 of the ash-pit opening, and a third set is arranged in the upper wall of the air chamber 3. Each set of valves is mounted by spindles 6 in a plate 11, Fig. 3, secured to the back-plate of the front and a plate 12 carried by bolts 13 on the front plate 1. A plate 34 slidable by means of slots on the bolts 13, Figs. 3 and 4, has slots 37 engaging lobe-shaped arms 38 on the louver spindles so that all the louvers of each set move together. An arm 14 on one of the spindles is engaged by an arm 16 in a spindle passing to the front of the furnace and carrying an operating-arm 18. A cam 22 moving with the arm 18 operates a channelled bolt 23, Fig. 5, the upper flange of which, when the valves are open, lies over a lug on the furnace-door latch, which is thus held closed. In a modification, Fig. 7, an arm 33 on the valve-operating lever stands in front of the latch when the valves are open. The two sets of ash-pit valves are connected by a bar 35 which, in a modification 49, Fig. 10, is offset so as to clear the door opening. In a third modification, the ash-pit valves and the upper air-chamber valves are connected for simultaneous operation by an arc-shaped bar extending over the door opening. In these two last modifications, the ash-pit valves are obliquely arranged as shown in Fig. 10.
Patent GB-289862-A (GB)
IPC: H02P7/06
Filed: 1928-05-04
Abstract: 289,862. Lorenz Akt.-Ges., C. May 4, 1927, [Convention date]. Transmitting-mechanism, electric.-For maintaining constant speed of electric or other motors, a constantly working electric make-and-break device 10 automatically varying the effective value of a resistance 5 in a direction to give fine regulation compensating for changes of speed of the motor 2, acts also upon a two-way make-andbreak 13 controlling a reversible pilot-motor 17 which inserts more or less resistance 6 in series with 5. The object is to keep the fine regulation close to the middle of its range, i.e. where the make-and-break 10 adjusts itself for equal periods of opening and closing. The resistances may, as shown, influence the field of an electric motor; or they may influence an electric brake for an electric or other motor. The invention may be applied to the driving of high-frequency machines in wireless telegraph circuits.
Patent GB-297713-A (GB)
Title: Improvements in or relating to the digestion of raw materials for paper-making and other purposes
IPC: D21C3/22
Filed: 1927-03-26
Abstract: 297,713. Milne, S. March 26, 1927. Corrosion, preventing.-In the manufacture of products by chemical reaction between a reagent and the cell contents of a natural organized material, fibrous or otherwise, the reaction is influenced by the application thereto of an externally generated relatively high frequency electromotive force. The invention is described in connection with the digestion of raw materials such as esparto grass for paper making &c., and results in a shortening of the time required for the treatment, reduction in the quantity of reagent used, a more complete removal of the non- cellulose matter, and the suppression of unwanted reactions. In carrying out the process the transmissions from the local broadcasting station may be used, the digester being earthed through a coil which in an example bad about 25 turns. An aerial may be connected to the top of the digester through a series condenser by which tuning may be effected. The oscillating electromotive force may be provided by an accumulator of two volts, the positive and negative terminals of which are alternately connected to an insulated metal plate g, Fig. 3, around the digester through a commutator h which is rotated to give each terminal about 80 contacts with the plate g per minute, the digester being connected to earth and to a cadmium plate o immersed in the accumulator. The effect of the cadmium plate is to ensure that the varying potential of the plate g is always positive. As an alternative to this arrangement, a four or six volt accumulator may be used, the voltage on the plate being then alternately 6 and 4 or 4 and 2 volts, the negative of the battery being connected to the digester and to earth. Maintaining a positive potential on the condenser element g retards the corrosion of the vessel, pipes, &c.