baber/WOPTO huggingface dataset:
Patent GB-1491917-A (GB)
Title: Hydraulic drives
IPC: F15B15/06
Filed: 1975-03-13
Abstract: 1491917 Hydraulic drive for a gun THYSSEN INDUSTRIE AG 13 March 1975 [18 March 1974] 10485/75 Heading F3C An hydraulic drive has single-acting controlcylinders 3, 4, Fig. 1, mounted on a base-plate 1, a servo-valve 2 for the cylinders 3, 4 and being connected via chambers 7, 8 and feed pipes 9, 10 respectively, piston-rods 11, 12 for pivotally connecting the drive to an object 6 which may be a gun turret, and has arms 17, 18, Fig. 2, which are connected by a bolt 16 to the base-plate 1 and are connected to the pivot 5 of the object 6. The piston-rods 11, 12 each have a ball head 19 or 20 mounted in a socket 21 or 22 in a piston 23 or 24. Folding bellows 13, 13<SP>1</SP> are provided. Bores 14, 141 and respective pipes 15, 15<SP>1</SP> are provided for leakage fluid to be removed from the piston-rod ends of the cylinders. In another embodiment a base-plate 1, Figs. 3 and 4, engages a support 25, has a servo-valve 2 which is secured laterally to the base-plate 1, and has pistons 26, 27 with a convex peripheral surface. In a further embodiment a base-plate 1, Fig. 5, engages a support 25 and a servo-valve 2 is fixed on the base-plate 1 between control cylinders 3 and 4.
Patent GB-1221025-A (GB)
Title: Improved filter unit
Inventor: SOLYMAR GEORGE GYORGY
IPC: B01D29/00
Filed: 1969-02-27
Abstract: 1,221,025. Bellows-type filters. AEROSPACE COMPONENTS CORP. 27 Feb., 1969, No. 10501/69. Headings B1D and B1T. Sealings rings 20 are secured to the circumferential pleats 15a of the filter element such that when the element clogs up it will be compressed axaially by the fluid pressure and the rings 20 will then seal against adjacent pleats 15a to prevent further fluid flow and protect the element. As described the filter element may comprise a circumferentially pleated tube of sheet material, e.g. metal gauze or paper, (Fig. 2, not shown); but as shown comprises a number of discus-like elements coupled together by screw threads to form the composite element, the sheet material 15a also being radially pleated (Fig. 6, not shown). The tendency to close up is opposed by a spring 21. As the element is compressed axially it may move a rod to activate an indicator, an outlet shut-off valve (112, 114, Fig. 4, not shown) or a by-pass valve (158, Fig. 5, not shown). End plate 19a may be impervious.
Patent GB-473305-A (GB)
Title: Improvements in or relating to electrical switching apparatus and contact springs therefor
IPC: H01H50/56
Filed: 1936-04-09
Abstract: 473,305. Light current relays; switch contacts. BLOMQVIST, S., and VIGREN, S. D. April 9, 1936, No. 10548. [Class 38 (v)] [Also in Group XXXIX] Contact springs for telephone relays, selectors and cross-bar switches &c. are constructed as shown in Fig. 3, with a stiffened portion 7 formed by making it of U or T or similar cross-section, and with a bend between the portion 7 and the part 4 to be anchored, the process of assembly partially or wholly straightening out the angle so that the springs have a determined amount of tension. The portion between the part 7 and the fixed end 1 may also be reduced in section by means of a hole 5 so as to make this part more flexible. A lug 6 is adapted to rest against or be attached to a fixed portion when the contact spring is a " fixed " contact. In the relay shown in Fig. 2, wherein there are two fixed and two movable contact springs operated by the armature A of a magnet M, the lugs 6 bear against projections on a member 8 arranged at the side of the contact springs. The invention may be applied to a cross-bar switch, Figs. 5-7 (not shown). In this case one fixed contact bar extends over and is engaged by a number of movable contact springs. Specification 141,005, [Class 40 (iv)], is referred to.
Patent GB-1502290-A (GB)
Title: Web cartridge
IPC: G03B17/26
Filed: 1975-03-13
Abstract: 1502290 Web cartridge EASTMAN KODAK Ltd 13 March 1975 [15 March 1974] 10559/75 Heading B8M  A tape cartridge comprises coaxially mounted spools 44, 46, a sprocket drive 68 for transporting the tape from one spool to the other, a snubber wall 98 or 96 disposed between a tape presenting means 106, 108 on the cassette and the sprocket 68 for snubbing engagement with the tape during its travel, and a spring motor 52 providing rotation of one spool in response to rotation of the other spool. Wall 98 functions as the snubber wall and is spaced from the presenting means 106, 108 in the direction of tape advancement when spool 44 acts as the take-up spool. Wall 96 functions as the snubber wall when the tape-advancement direction is reversed and is spaced from the presenting means in such web-advancement direction. The presenting means, consisting of pad 106 and spring 108, present the tape to a claw 30 of, for instance, a camera by co-operating therewith. The spring motor 52 comprises a spring wound into a coil 52<SP>1</SP> and a coil 52<SP>11</SP> formed around the spool 44. The spring 52 is placed in an operative position by effecting relative rotation of the spool in the direction of the arrows (see Fig. 7), which causes the coil 52<SP>1</SP> to be guided up a ramp 124, on to platform 126 and to be cupped within a saddle 122 of spool 46. Continued rotation causes the spring 52 to be wound around the coil 5211. Upon rotation of the spool 46, for tape unwinding, spring 52 is gradually uncoiled from coil 5211 and recoiled into the coil 52<SP>1</SP> thereby producing winding rotation of spool 44, until the spool 44 is wound with the tape. Spring 52 is then forced by saddle 122 to uncoil from coil 52<SP>1</SP> and recoil into coil 52<SP>11</SP>. The film is guided from one of the spools 46 via the bottom half of an idler roller 100 to a bottom half of the sprocket 68 and travels through openings 26 and 34, along the top half of the roller 100, the top half of the sprocket 68 to the spool 44. The cartridge includes a lock 66 which engages peripheral projections on the spools to prevent rotation thereof and spillage of the film F. The lock 66 is retracted from its engaged position when the cartridge is received in the cartridgereceiving apparatus by a member (not shown) of the apparatus. The film is moved by a capstan 36 and roller 38 of the apparatus to be presented for sound recording. The apparatus may alternatively be motion picture projectors or taperecording devices. Entry of actinic light rays through an opening 72 is restricted by a cup 80 received within another cup 82 to form a light trap.
Patent GB-105719-A (GB)
IPC: C07D233/72
Abstract: 105,719. Imray, O., (Farbwerke vorm. Meister, Lucius, & Bruning). Oct. 25, 1916. Arylalkylhydantoins of the general formula are obtained by applying the known processes for the production of hydantoins to arylalkylaminoacetic acids, (aryl) (alkyl) C (NH2) COOH, or their derivatives, either as such or produced in the course of the process. The products have hypnotic properties. According to examples : a -phenylalpha-aminobutyric acid is converted into its ethyl ester and this is treated with potassium cyanate and hydrochloric acid, giving phenylethylhydantoin; alpha-phenyl-alpha-aminopropionitrile is treated with chlorformic ethyl ester, the resulting phenylmethylurethanoacetonitrile is converted by heating with alcoholic ammonia into phenylmethyluramidoacetonitrile, which, on heating with hydrochloric acid, yields phenylmethylhydantoin; a -phenylalpha -aminobutyronitrile may similarly be converted into phenylethylhydantoin ; the phenylmethylurethanoacetonitrile referred to above, on treatment with concentrated sulphuric acid, gives phenylmethylaminoacetamide; this, on treatment with chlorformic ethyl ester, gives phenylmethylurethanoacetamide, which is converted into phenylmethylhydantoin by treatment with caustic potash and alcohol; the phenylmethylaminoacetamide may be converted also into the hydantoin by treatment with phosgene; the ethyl ester of alpha -phenylalpha -aminobutyric acid on treatment with chlorformic ethyl ester gives phenylethylurethanoethyl acetate which on treatment with alcoholic ammonia gives phenylethylhydantoin; phenylcyanacetamide is converked into its sodium compound, which, on treatment with ethyl bromide, gives phenylethylcyanacetamide; treatment of the latter with sodium hypobromite followed by sodium bisulphite gives phenylethylhydantoin; phenylethylmalonitrile or the corresponding malonamide treated with a hypobromite, hypochlorite, or hypoiodite, gives phenylethylhydantoin; alpha-piperonylalpha -aminopro. pionic acid is prepared by treating acetopiperone with potassium cyanide and ammonium chloride in methyl alcohol and saponifying the resulting nitrile, it is converted into its methyl ester which, on treatment with chlorformic methyl ester, gives the corresponding urethane; this, on heating with alcoholic ammonia, gives piperonylmethylethylhydautoin; p-chlorpropiophenone is treated with potassium cyanide and ammonium chloride in methyl alcohol, the resulting nitrile is saponified to a -chlorphenyla -aminobutyric acid ; the ethyl ester of this acid is treated with chlorformic ethyl ester and the resulting urethane heated with alcoholic ammonia, giving p-chlorphenylethylhydantoin. Phenylethylmalononitrile is obtained by heating phenylethylcyanacetamide with phosphorus pentachloride in vacuo. Phenylethylmalonamide is obtained by treating phenylethylcyanacetamide with concentrated sulphuric acid.
Patent GB-116956-A (GB)
Title: Temporary Electric Connecting Clip.
Inventor: GEORGE SAMUEL
IPC: H01R4/24
Filed: 1917-07-24
Abstract: 116,956. George, S., and Hutchinson, T. J. July 24, 1917. Needle-point couplings.-Consists of an insulating-block G, Fig. 5, carrying a conducting-sleeve in which the secondary conductor is fixed by the grub-screw D. The block is placed between the hinged jaws of a clip and a hardened-steet point C which is screwed into the socket is pushed through the insulation of the conductor into contact with the conductor itself. The clip is held upon the conductor and the insulating-block held within the clip by securing the jaws of the clip together by a set-screw F.
Patent GB-200233-A (GB)
Title: Improvements in electric distributing systems
IPC: H02J13/00
Filed: 1922-04-13
Abstract: 200,233. Togami, N. April 13, 1922. Selective distant control systems.-A switching line d, to which one end of each of the switch magnets 1 at the consuming stations is connected, is adapted to be connected to the distribution mains by means of a control switch C so that the electromagnetic switches D, D' may be selectively or simultaneously operated.
Patent GB-1412879-A (GB)
Title: Shcottky barrier semiconductor device
IPC: H01L29/06
Filed: 1973-03-06
Abstract: 1412879 Schottky diodes RCA CORPORATION 6 March 1973 [10 March 1972] 10704/73 Heading H1K A Schottky diode comprises a first semiconductor layer 14 e.g. of N type, a superposed apertured layer of opposite conductivity type 16, and a metal layer 20 forming a Schottky barrier with the layer exposed in the aperture and an ohmic contact with the other layer 16 which acts as a guard ring. In the device shown layers 14 and 16 are deposited epitaxially on low resistivity substrate 12 the layer 16 being subsequently reduced to annular form with tapering inner and outer peripheries by photoresist and etching techniques. Electrode layer 20 which may be chromium, aluminium, or rhodium if the semiconductor is silicon, gold or chromium if it is germanium, or gold if it is gallium arsenide, is deposited by vacuum evaporation, pyrolytic decomposition of a compound, or sputtering.
Patent GB-493154-A (GB)
Title: Improvements in the manufacture and production of dyestuffs
IPC: C09B69/00
Filed: 1937-04-15
Abstract: A basic dyestuff containing at least one amino group bearing a free hydrogen atom or a sulphonic acid derivative thereof is reacted with a vinyl ketone or a b -halogenethyl ketone.  Basic dyestuffs specified are triphenylmethane dyestuffs, safranines, indulines, oxazines, thiazines, diazines, rhodamines, and aminoazo compounds. One or more g -ketobutyl radicals may be introduced into the amino group or groups according to the quantity of ketone used.  The reaction may be carried out in water or an organic solvent, and in presence of hydroquinone or copper compounds to stabilize the vinyl ketone, and may be promoted by acid or alkaline agents, such as sulphuric acid and mineral acids, chloracetic acid, caustic alkalies or piperidine or by working at superatmospheric pressure.  Acid binding agents may be used with b -halogenethyl ketones.  Tertiary amino groups may be present in the basic dyes, and the reaction may be performed in presence of alkylene oxides, epichlorhydrin or butylene chlorhydrin.  The products dye wool, silk, cotton mordanted with tannic acid, cellulose acetate, paper, or leather.  In examples, vinyl methyl ketone is reacted with (1) fuchsine, if desired in butanol or water, or with Neufuchsin or parafuchsine (violet shades); (2) Lauth's Violet in butanol in presence of piperidine (green shades) or with aminoazobenzene (golden-yellow shades on acetate artificial silk), Chrysoidine or Bismarck Brown (yellow-brown shades), or Benzoflavine (orange shades); (3) safranine in water (red-violet shades); (4) Neufuchsin, (red-violet shades); (5) safranine or phenosafranine in water in presence of sulphuric acid (red-violet shades), a bye-product dyeing brown shades being obtained in the case of phenosafranine; (6) a rhodamine of the formula <FORM:0493154/IV/1> wherein R stands for methyl, ethyl or propyl, in water in presence of sulphuric acid (red shades); (7) para - fuchsine, (reddish - blue shades); (8) Rhodamine 3G in water (violet shades); (9) Methylene Violet 3RA extra in water - (blue-violet shades); (10) phosphine (yellow brown); (11) Methyl Violet in presence of sulphuric acid (reddish-blue); (12) fuchsine, with addition of epichlorhydrin (blue); (13) Trypaflavine in water (yellow-brown); (14) Fuchsine S in water (red-violet); and (15) Alkali Blue R in water (greenish-blue), or Acid Cyanine B or Primulin (orange-yellow).
Patent GB-548511-A (GB)
Title: Improvements in or relating to theodolites or other angle measuring instruments
IPC: G01B5/00
Filed: 1941-08-25
Abstract: 548,511. Theodolites and the like. COOKE, TROUGHTON & SIMMS, Ltd., TAYLOR, E. W., and HARRISON, J. W. Aug. 25, 1941, No. 10826. [Class 97 (ii)] In theodolites and the like the vertical and horizontal circle plates are provided with means for moving the plate in its own plane so as to adjust its centring without removal of the circle plate from its mount. Figs. 3 and 4 show a vertical circle 2 having a boss 11 adapted to fit into the machine end of the transit axis 1 with slight freedom. The boss 11 is provided with a number of saw cuts 12 to provide segmented springy walls to the boss which boss is also provided with screws 15 the points of which are adapted to bear on steel balls 17 arranged in recesses 16 closed by a plate 14 secured in place by screws 13. When adjusting the securing screws 3 are slackened and one or more of the screws 15 are tightened causing the ball or balls to spring out the weakened wall or walls of the boss and so move the circle plate in its own plane in the desired direction, it being understood that the screws 15 at the opposite end of the diameter from those being operated are slackened. The retaining screws 3 are then screwed home. Fig. 7 shows another method in which manipulation of capstan headed screws 22 perform the adjusting movement by bearing on the machined interior face of the transit axis. Fig. 14 shows a method applied to a horizontal circle plate 30. The alidade is rotatably mounted in a socket 27 carried by the fixed base and a sleeve 29 is rotatable around the socket 27. The circle plate 30 is secured to the sleeve 29 by screws 9 which when slackened permit limited movement of the circle plate 30 in its own plane. The required movement is obtained by the manipulation of one or more screws 32 carried by the circle plate the conical ends of which screws bear upon the side of conical recesses 33 in the sleeve 29 to exert a sideways pressure. Specification 518,148 is referred to.
Patent GB-892494-A (GB)
Title: Improvements in or relating to load lifting and transporting trucks
IPC: B62B3/06
Filed: 1959-03-31
Abstract: 892,494. Lift trucks. SULC, J. F. March 31, 1959, No. 10837/59. Class 78 (3). A masted lift truck of the kind having rollers 8 at the extremities of stabilizing arms 1 is provided with auxiliary wheels or rollers which are used alternatively to rollers 8. The truck comprises a mast 5 rigid with a chassis 3 and arms 1, retractable wheels 4 and 8, which allow the truck to be used as a pallet or stillage truck, and a lifting carriage 7 mounted on the mast and adapted to carry a fork 2, a squeeze clamp, a crane attachment, or a platform. The auxiliary wheels 9 are movable from the stowed position (Fig. 1) to the operative position (Fig. 4) by a handle 10 when the chassis assembly has been temporarily elevated by extension of wheels 4, 8. In a modification (Fig. 5) balls 14 mounted on vertically adjustable rods 15 are movable to a position in which they relieve rollers 8 and thereby shorten the effective wheel base of the truck. In a further modification (Fig. 6), arms 1 are lowered on to a carriage 12 provided with castors 13 which enable the truck to be used as a side loader.
Patent GB-712555-A (GB)
Title: Improvements in or relating to mulling machines
Inventor: HORTH WALTER
IPC: B22C5/04
Filed: 1952-04-30
Abstract: 712,555. Mulling machines. SIMPSON CORPORATION, H. April 30, 1952, No. 10870/52. Class 59  A mulling machine comprises a supporting structure on which is mounted a bed plate 13 having a central opening through which extends a drive shaft 36 having secured thereto one member 101 of a jaw clutch the other member 102 of which is secured to the output shaft 107 of a speed reduction mechanism 99 the casing of which has an upwardly extending centring pilot sleeve 112 which is bolted to an annular flange 13d depending from the bed plate. The drive shaft is rotatable in a turret 28 the base 28a of which is bolted to the flange 13d. A segmental wear plate 26 is fastened to the bed plate by means of bolts 27 and nuts 128, the bolts having recessed socket portions at their lower ends so that the fastening can be effected from below the bed plate. Secured to the upper end of the shaft 36 is a crosshead 34 with integral arms 45 to 48, the arms 46, 48 having pivotally secured thereto rocker arms 35 carrying muller wheels 32, and the arms 45, 47 having secured thereto plows 70, 75 which are adjustable both vertically and angularly. The muller wheels may be adjustably pre-loaded by means of springs 120, 121 located in telescoping cylinders 115, 116 which are pivotally connected to the rocker arms 35. Downward pivoting movement of the rocker arms is controlled by means of adjusting screws 126. The wear plate is provided with an opening 133 for a discharge door 132 mounted on a shaft 135 which is oscillated by means of fluid pressure. The edge of the door 132 is bevelled so that any sand on the edge of the door is removed when the door is moved into its closed position. A wall 10 bolted to the bed plate has a removable section 130 to facilitate lateral removal of the turret, crosshead and muller wheels. The bearings of the drive shaft, muller shafts and rocker arm shafts are lubricated by a system 91.
Patent GB-1099473-A (GB)
Title: Smoke detection apparatus
IPC: G08B17/107
Filed: 1965-03-16
Abstract: 1,099,473. Temperature alarms. ALARM DEVICE MANUFACTURING CO. DIVISION OF PITTSBURG RAILWAYS CO. Inc. March 16, 1965 [March 26, 1964], No. 10981/65. Heading G4N. [Also in Division G1] Apparatus for detecting a condition comprises two radiation detectors, one of which is normally irradiated and the other not, but in response to the condition are equally irradiated and means responsive to equal irradiation to produce a signal. In a smoke detector, the radiation detectors are photo-resistors one arranged to receive light direct from a lamp 27, Fig. 6, and the other receiving scattered light if smoke is present. The photo-resistors 25, 26 are connected in a bridge circuit 52 so arranged that the s.c.r. 69 conducts when their resistances are equal. The s.c.r. energizes a relay 72 to give a visual or audible alarm over relay 75. If the lamp 27 fails, relay 100 drops out to give a trouble indication over relay 108. The photo-resistors 25, 26, Fig. 3, are arranged facing downwards to prevent deposition of dust and a screen 29 prevents direct illumination of photo-resistor 26 by lamp 27. Heat from the lamp maintains a flow of air in through light and insect-proof passages 21, 211 and out through similar passages 22, 22<SP>1</SP>. A shutter 32 in front of photo-resistor 25 is provided for calibration.
Patent GB-978767-A (GB)
Title: Improvements in or relating to apparatus for use in the preparation of printing master sheets for hectographic or lithographic printing processes
IPC: G03D13/00
Filed: 1963-03-20
Abstract: 978, 767. Continuous treatment developing apparatus for printing with light sensitive sheets. W. RITZERFELD, and G. RITZERFELD. March 20, 1963 [March 23,1962; Oct. 16, 1962], No. 11004/63. Heading G2A. A continuous treatment motor driven developing apparatus for light sensitive sheets for use in the production of hectographic or lithographic printing master sheets where the light sensitive sheet is used as the master sheet or is used to convert a further sheet into a master sheet, has liquid developer 49 in a container 8 through which extends a guide channel 13,14 for the sensitive sheet 48 with feed rollers 33, 34 at its entrance and feed rollers 37, 38 at its exit which press an additional sheet from feed plate 20 into contact with the developed sheet 48. The passage of master sheet 48 over feed plate 15 raises sensing rollers 17 carried between levers 25 pivoted at 27 between side walls, 2, 3, whereby feed plate 20, through parts 28, 29, 26, 25 is raised with roller 32 also mounted on levers 25, and the drive for the contact sheet is thus disengaged. Counterweights 23 now rotate shaft 21 and at the end of plate 20 until pins 24 rest on levers 25 and the stop 22 projects upwards to form an abutment for a contact sheet which may then be placed on plate 20. Master sheet 48 passes through developer 49 until its trailing edge clears rollers 17 which then fall into slots 16 in plate 15, the movement of levers 25 releasing stop 22 and also re-engaging roller 32 with roller 35 to transport the contact sheet to rollers 37, 38 to meet the master sheet 48. The sheets are separated by hand on leaving these rollers, and sheet 48 is then placed layer side up on the portion 7a of hood 7, upon the protector sheet 50 of an ink transfer sheet 52 whose end has been inserted through slit 51 in the hood. The sheets are then fed through the rollers 37, 38 and are separated by hand to give a mirror image master sheet. The rollers 17 are adjustable in slot 30 to suit different sizes of sheet. In an alternative procedure, the developed sheet 48 is brought into contact with an ink transfer sheet and passed through rollers 37, 38. After separation, the ink sheet is fed through rollers 37, 38 with a blank paper sheet which is separated to form a further master sheet. In another embodiment, a spring loaded pivotable holding bridge is mounted near the slot 51 and holds ink sheet 52 in its folded back position to prevent premature contact with sheet 48. A rubber pad carried on an upwardly pivotable lever 10 provided to hold the protective sheet 50, until master sheet 48 is inserted into the ink sheet set 50, 52. Wire bridges are provided to support the sheets leaving rollers 37, 38, and to support the folded back sheet 52.