baber/WOPTO huggingface dataset:
Patent GB-389203-A (GB)
Title: Improvements in or relating to process and apparatus for the manufacture of mixturessuitable for carburation or combustion, from oils wholly or partly unfit for such uses
IPC: C10G7/00
Filed: 1931-12-12
Abstract: <PICT:0389203/III/1> Oils unfit for carburation or combustion are "homogenized" and rendered fit for such purposes by heating them under vacuum in a still surmounted by a fractionating column the top of which is maintained at a temperature below the distillation temperature so that all the vapours are retained and condensed in the column, while the bottom of the column is maintained at a temperature sufficiently high to prevent retrogression of condensate to the still, prolonged contact of the vapours and condensate being thus obtained and continued until homogenization is effected whereupon the temperature is raised and the mixture withdrawn from the column and condensed.  The oil is distilled in a still 1 surmounted by a column 2 surrounded by a jacket 18 through which water is circulated to maintain the required temperature.  The vapours finally pass off through a line 3 and separator 4 to a condenser 5, condensate being collected in a tank 8 from a vacuum regulating receiver 7 maintained under high vacuum by a pump 10 which exhausts the gases through a cooler 12 where residual vapours are condensed.  Heavy fractions collecting in the separator 4 are deprived of light constituents by trickling down plates 24 and may be returned to the still through a pipe 25 or passed through a cooler 14 to a receiver 15, also kept under vacuum by a pipe 16 connected to the pump 10.  Cooling water passes from the cooler 12 through the jackets of the vessels 7, 5, 14 and finally into the jacket 18.  Specifications 27005/11, 145,652, and 170,324, [all in Class 32, Distilling &c.], are referred to.
Patent GB-443173-A (GB)
Title: Improvements in indicating devices particularly for weighing apparatus
IPC: G01G23/32
Filed: 1934-12-01
Abstract: 443,173. Weighing - apparatus. FITZPATRICK, H. J., 94, Hope Street, Glasgow.- (Maatschappij van Berkel's Patent Naamlooze Vennootschap; 33, Boezemsingel, Rotterdam, Holland) Dec. 1, 1934, No. 34579. Addition to 401,784. [Class 143] [See also Group XIX] In a modification of the invention described in the parent Specification, the indicating device comprises transparent means such as a magnifying lens, located between the sighting aperture and the unit price numerals or other markings, the transparent means permitting proper viewing of the datum line and chart from the correct observing position, but rendering the unit price numerals or other markings, as well as the datum line, invisible or unreadable if the operator moves his head from the correct observing position. As shown applied to the drum type of weighing-apparatus, a composite window comprising opaque strips 6, 6<a>, a clear strip 7 and a transparent coloured strip 8 is arranged in the sighting aperture. A datum wire 2 of the same colour as the strip 8, and a unit-price scale 9<a> are arranged adjacent the rotatable value drum 1. Between the window and the datum wire is located a plano-convex magnifying lens 10. When viewed from the correct position the datum wire and the drum readings are visible through the clear strip 7, and the unit price numerals are visible through the coloured strip 8. If the eye is raised, the datum wire is obscured by the opaque strip 6, and the unit price numerals on the scale 9<a> are rendered unreadable by the interference of the lens. If the eye is moved downwards the coloured strip 8 obliterates the reading line, and the lower opaque strip 6<a> obscures the unit price numerals.
Patent GB-994217-A (GB)
Title: Improvements in or relating to liquid transfer apparatus, for use for example, in the chemical analysis of liquid samples
IPC: G01N1/00
Filed: 1961-09-27
Abstract: 994,217. Raising liquids. RESEARCH SPECIALTIES CO. Sept. 27, 1961 [Oct. 7, 1960], No. 34590/61. Heading F1R [Also in Divisions B1 and B8] In a sampling apparatus, e.g. in a chemical analysis apparatus, a measured quantity of liquid is withdrawn from a test tube 28, Fig. 1, by a pump 27 carried by a reciprocating and rotating head 21 which moves the pump through a series of stages such as liquid withdrawal, discharge, and washing stages. The head 21 is carried by a shaft 32 which is reciprocated by a crank 46, carried by a rotating member 47 driven by a motor 56, and rotated intermittently by a pin 61 on the member 47 engaging pins 41 on the member 32 at the upper end of its stroke. The pump is actuated by a shaft 34, rotated by a motor 36, which drives a screwed spindle 109, Fig. 3, through gears 118, 117, to reciprocate a screw-threaded block 108 attached to the pump piston 101. The shaft 34 drives gear 118 through a clutch formed by a cup 121, attached to the shaft 34, which drives through a friction ring 119. At the bottom of the pump stroke a stop 125 on the block 108 engages a stop 124 on gear 117 to prevent further rotation of the block, the clutch 119 permitting the drive to slip until motor 36 is de-energized. Each head 21 preferably carries a pair of pumps and is moved in steps through angles of 90 degrees. In an analysis machine as shown in Fig. 11 each pump is moved through a cycle by the head 21a in which (a) the pump is lowered so that its inlet probe 29 enters a test tube 28 on a turntable 142 and the pump plunger is actuated to withdraw a sample from the tube, (b) the pump is raised, moved through 90 degrees and then lowered to discharge the sample into tubes in an incubator bath 143, (c) the pump is moved by steps to a washing station at which it draws in and discharges water and then to a drying station, after which the cycle starts again. In a modified head 21b, Fig. 11, the pumps 101 are pneumatic and operate a siphon 131 whereby the samples are transferred from the tubes on table 143 to a photometer 144. The samples may be returned to the test tubes and a measured amount of reagent added by means of the pumps of a third transfer head 21c similar to that of 21a. The operation of the head 21 and energizing of the motors 56, 36, is controlled by an electric circuit Fig. 10 (not shown).
Patent GB-490519-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B15/06
Filed: 1936-12-16
Abstract: 490,519. Centrifugal separators. FAWCETT, H. W. Dec. 16, 1936, No. 34631. [Class 23] To facilitate the cleaning of a centrifuge the tubular member 1 which supports the disc pack has a number of flutes 2 on its outer surface. The flutes run axially, and have a number of apertures 4 through which washing fluid can be supplied to the disc pack. The apertures may be formed by the intersections of the flutes with a number of ring grooves 3 in the interior of the tube 1 ; or the grooves may have an helical form so that the apertures are staggered. The flutes 2 are inclined to the radius to cause the jets from the apertures to cover the disc surfaces. In a modification the apertures are formed by a series of continuous slots in the flutes. The flutes in the tube are brought down below the edge 5a of the bottom disc 5 ; the part 6 is made separately from the tube 1 and secured to the bowl base by screws 9 or rivets. The total area of the apertures exceeds one-third and is less than two and one half times the minimum internal cross-sectional area of the tube 1. Specification 466,971 is referred to.
Patent GB-795605-A (GB)
Title: Gear finishing with lead correction
IPC: B23F19/06
Filed: 1956-11-13
Abstract: 795,605. Gear-finishing; milling-cutters. NATIONAL BROACH & MACHINE CO. Nov. 13, 1956 [Jan. 16, 1956], No. 34637/56. Class 83 (3). A method of cross-axis gear-shaving to correct lead-errors consists in relatively feeding a narrow cutter radially of the gear along the common normal at the centre of the gear while positively rotating one of them, and successively relatively traversing them by increasing distances until the width of the gear has been machined, there being an additional radial feed between each traverse. The cutter teeth, Fig. 5, have a hollow-lead modification. After the first in-feed, and before traverse takes place, each cutter-tooth 63, shown in an exaggerated section in Fig. 6, cuts into the adjacenttoothflanks along approximately the correct, desired, helical-lead. Traverse is then carried out between the limits indicated in dotted lines. A further radial in-feed is then effected to fulldepth as in Fig. 7, with the cutter in one of its end positions, or in its central position as shown. Traverse is then carried out as indicated by the lines 63a, 63b to completely machine the gear. The cutter may be modified by the provision of a relieved portion in the centre of each tooth, or by providing relatively wide grooves between the lands. The end surfaces of each tooth may have cutting edges or may be chamfered. The radial feed may be rapid and may be combined with traverse.
Patent GB-466656-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B1/06
Filed: 1936-12-17
Abstract: 466,656. Sewing - machines. UNION SPECIAL MACHINE CO. Dec. 17, 1936, No. 34660. Convention date, Jan. 25. [Class 112] A chain-stitch machine comprises a driving shaft 7 housed in the overarm 3 and connected to the needle bar 15 by a balanced crank 17, crank-pin 18, and connecting rod 19 coupled to a pin 20 carried by the bar and guided by a slot 25 in the head 4. The boss 27 of the rod 19 bears on a ball 26 pivoted on the crank-pin 18, and its lower end carries a scoop which picks up lubricant from a sump 30. The shaft 7 is connected by a gear train 60, 59, 56 to a shaft 50 under the bed plate 1, the gear 56 dipping into an oil sump 53. The shaft 50 carries a pair of crank heads 65, 66 with a connecting ball crank-pin 67 by which the arm 75 carrying the looper 74 is rocked through linkwork 99, 97, 90, 85. A second shaft 68 coaxial with the shaft 50 is fixed in a socket in the head 65, and imparts to the looper 75 its needle-avoiding movement through an eccentric rod 82 and rocking shaft 77 carrying the stud 76 on which the looper arm 75 pivots. Ball joints are used in the looper mechanism to reduce wear. The upper end of the presser bar 32 slides in a slotted screw bushing 37 and is acted on by a double leaf spring 39, the pressure of which may be adjusted by a set screw 42. The bar is raised by a latch lever 46 having a cam coacting with a stud 49 carried by the bar. The feed dog 102 is vertically adjustable on a feed bar 103, which is reciprocated by a crank-pin 119 on the shaft 68 through linkwork 117, 115, 109. The lift movement is given to the feed dog by an eccentric 121 on the shaft 68, the strap of which is pivoted at 123 to an arm 124 on the feed bar 103. The needle-thread tension device comprises a sleeve 125 guiding a thrust-pin 129 through which an eccentric 128 on the shaft 7 actuates the adjustable tension means 127. The take-up for the looped thread comprises an inclined guard plate 133 to which is fixed a U-shaped wire tongue 136 between which and the plate the thread passes. A rotary cam disc 131 on the shaft 68 projects through a slot in the plate 133 between the limbs of the tongue 136.
Patent GB-925695-A (GB)
Title: Improvements in and relating to contact arrangements for electrical switches, especially for thermostats
Inventor: SHEPHERD GEORGE RONALD
IPC: H01H1/50
Filed: 1960-10-10
Abstract: 925,695. Thermal switches. H. M. C. OF HARTFORD Ltd. Sept. 5, 1961 [Oct. 10, 1960], No. 34661/60. Class 38 (5). In a slow break electric switch the fixed contact 7 is mounted on a pair of spaced heatexpansible metal members 8, 9 arranged to deflect the contact if heated differentially, the electrical connection to the contact 7 being made through one member 8 only with the result that on engagement of contacts 3, 7 resistance heating expands the member 8 and deflects the contact 7 downwards to increase contact pressure ; likewise, on breaking of the contacts, rapid cooling increases the contact separation. The effect is to reduce sparking at the contacts. Heating of the contacts due to sparking or high contact resistance does not affect the operation of the switch since both members 8, 9 are then heated equally. The switch shown is operated by a plunger 2 connected to a suitable thermal element. In a modification (Fig. 2, not shown), the fixed contact assembly is applied to a snapaction switch in order to reduce or increase its temperature differential.
Patent GB-1143086-A (GB)
Title: Information correlating
Inventor: GABOR DENNIS
IPC: G06V10/88
Filed: 1965-08-13
Abstract: 1,143,086. Character recognition by holography. INTERNATIONAL BUSINESS MACHINES CORP. 12 July, 1966 [13 Aug., 1965; 1 March, 1966], Nos. 34703/65 and 8945/66. Heading G4R. [Also in Division G2] The property of a hologram formed from two coherent waves one from each of two objects A, B that, when illuminated by A alone, B will also appear, and vice versa, is utilized in character recognition where A is an alphanumeric character and B is a combination of point sources forming a code word which can be read by a machine. The record of the interference pattern between one pair of beams, one from each of such sources A, B, is called an engram. A hologram is built up on a plate 91 by repeated exposures to comprise a matrix of engrams, perhaps with more than one engram in each matrix position. The engrams correspond to variants of the possible characters and shapes adapted to facilitate discrimination between characters, each with its respective code-word. Each variant is exposed in turn at a window 87 to a coherent light beam from an effective light source L<SP>1</SP>, while the code-word is positioned on a plate 92 and exposed to coherent light beam from an effective source L<SP>11</SP>, both beams of light then falling on the plate 91. After all the alpha-numeric characters have been recorded, the plate is then processed. Decoding.-A. source (100), Fig. 17 (not shown), of monochromatic light (not necessarily a laser) is used to illuminate an unknown character (102) and the light then falls on to the hologram (91) producing an image of the character and of its associated code-word, which code-word is sensed by photocells (108). Thus the hologram acts as a translator. In another embodiment for high-speed typescript or print decoding, Fig. 33, (notshown), a sheet is fed on to arotary transparent drum 110 so that lines of print on the sheet form a continuous helix on the drum, the path of the illuminating beam entering the drum parallel to its axis and leaving through the curved surface of the drum, imaging each character in turn through a window 121 on to the hologram 123. Any code-word from the hologram is sensed by photocells 132. The position of the window 121 is servo controlled to equalize the illumination of two further photocells 134 on the optic axis at the sensing location 125, thereby accurately bracketing the line being read. As a modification, the further photocells 134 may sense the next line to be read rather than the correct one, to allow for positioning delays. In both embodiments, the sensed code-word(s) is/are passed to logic circuitry to identify the character. A cathoderay tube scanner may be used to sense the code word(s) instead.
Patent GB-386106-A (GB)
Title: Improvements in or relating to systems of distribution of musical or like programmes
IPC: H04H20/81
Filed: 1931-12-15
Abstract: 386,106. Automatic exchange systems. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and MOSS, B. F., of General Electric Co., Stoke, Coventry. Dec. 15, 1931, No. 34718. [Class 40 (iv).] Trunks supplying broadcast programmes are connected to the bank of a subscriber's lineswitch. In the arrangement shown, the lineswitch gives access over its first five outlets to different programme trunks selected numerically whilst the remaining outlets lead as usual to further selectors for telephone connections. In the latter case, relays A, B operate in series and the switch hunts in the usual manner over bank dm3, the terminals corresponding to the programme trunks being directly earthed. Relay B is made slow-to-release by a shunt resistance NI. In order to select a programme trunk, key s1, s2 is operated connecting up loud-speaker L, and the dial DS is operated. Off-normal springs ds2 operate relay B to energize C and impulses from springs ds1 are repeated by B to magnet DM. When the dial returns to normal, the release of relays B, C energizes K over bank dm4 and the right-hand winding of A which does not operate. To release the programme trunk the dial DS is operated by means of an extra finger-hold to a position in which springs ds2 only are closed. Relay A operates over line 3, k4, dm4, b1, shortcircuiting K and completing over bank dm4 a restoring circuit for the line-switch. In modified arrangements, the programme trunks and ordinary selectors may be reached over different sets of wipers of the line-switch, andthe selection of the programme trunks may be controlled by a signal sent back from the apparatus normally seized by the line-switch.
Patent GB-619123-A (GB)
Title: Improvements in fluid-pressure-actuated systems or apparatus
IPC: B23Q5/26
Filed: 1946-11-22
Abstract: 619,123. Dashpots. GRANT, C. R. A. Nov. 22, 1946, No. 34763. Addition to 598,343, [Group XXVIII]. [Class 108 (iii)] An improvement on the invention of the parent Specification consists in placing between the cylinder 26 and the tank 27, and in parallel with the restrictor valve 32, a second cylinder 33, which contains a free piston exposed on one side to the static pressure of the tank 27. After contact with the ram 25, the work table 24 moves against the resistance caused by static water pressure acting on one side of the free piston; when the latter reaches the end of its travel, movement of the table 24 is further restricted because water can then only flow from the cylinder 26 to the tank through the restrictor valve 32. Travel of the floating piston can be adjusted by a screwed stop 37. When the table has finished its working stroke, the floating piston falls under gravity to the bottom of its cylinder 33, which is for that purpose arranged vertically. A restrictor valve 34 is inserted in the pipe 30 to adjust the initial rate of movement of the table 24.
Patent GB-1279312-A (GB)
Title: Feedback potentiometer for a servo-motor
IPC: H01C10/30
Filed: 1969-07-10
Abstract: 1279312 Variable resistors DANFOSS AS 10 July 1969 [10 July 1968] 34767/69 Heading HIS In a potentiometer for use in a servomotor feedback control, the resistor element is a helical coil 8 whose ends are held in retaining means 9, 10 at least one of which is movable to alter the length of the coil 8. The coil may occupy a V-shaped groove (5, Fig. 2, not shown) on the circumference of a disc (3) on the output shaft 1 of the motor. The retaining means 9, 10 -which are screw-attached to the rim (7) of the disc (3) and also act as terminals (13) for the resistor element 8-have tabs 15 both of which operate a stationary limit switch 16; so that the position of the retaining means determines through the limit switch, the angle of rotation of the shaft 1; and the full length of the coil 8 is always traversed by stationary wiper contact 18. For a reciprocating output shaft (21) (Figs. 3 and 4, not shown) a contact (23) on the shaft slides in a slot (32) over the straight resistance coil (24) which is held between retaining means (26, 26) in V-shaped grooves (28, 33) in upper and lower clamp parts (31, 29).
Patent GB-1121032-A (GB)
Title: Improvements in or relating to counting apparatus
IPC: G06M1/10
Filed: 1966-08-03
Abstract: 1,121,032. Counters. ERDOS DAVIS (HOLDINGS) Ltd. 3 Aug., 1966 [10 Aug., 1965], No. 34776/66. Heading G4D. [Also in Division B8] A pill dispenser has an adjustable holder 12 for a stock container 27 from which the pills fall through a funnel 24 on to a shoot 4. The shoot has several stepped slopes of increasing gradient and is vibrated eleotromagnetioally by rod 18 so that the pills are subjected to increasing acceleration as they move down the shoot. The pills fall at 40 past a photo-cell into a small container. The photo-oell steps a counter 51 backwards from a preset number. At zero the counter stops the vibrator. If the batch is exceeded this is shown by the counter and the necessary adjustment can be made. The amplitude of the vibrator is adjustable by scale 23. When dispensing is complete the shoot 4 and stock container 27 are tilted clockwise to return pills from the shoot to the container.
Patent GB-411388-A (GB)
Title: Improvements in or relating to the printing of puzzle pictures
IPC: B41M3/00
Filed: 1933-12-11
Abstract: 411,388. Photo-mechanical printing- surfaces. WEARHAM, J., 159, Lewisham Road, London. Dec. 11, 1933, No. 34781. [Class 98 (ii).] For printing puzzle pictures of the kind in which solution consists in the contiguous assembly of the disarranged parts of the picture, a flat or curved printing plate is employed on the surface of which the disarranged portions of the picture are formed with their adjacent boundaries parallel or co-incident with one another. A picture is cut into strips of equal width, the strips are secured in disarranged order on a backing sheet with their edges adjacent to each other, and the sheet is cut into strips along lines at right angles to the edges of the first strips, and these strips are stuck on to a second backing sheet in disarranged order but with their edges adjacent. A rectangular picture comprising disarranged squared portions of the original picture is thus obtained from which the printing plate may be produced photographically. The printing plate may be adapted to print lines within or outside the boundary of the picture to indicate the lines along which the picture is to be cut.
Patent GB-1044735-A (GB)
Title: Method for producing alkylaluminum compounds
IPC: C07F5/06
Filed: 1964-08-25
Abstract: In the preparation of alkyl aluminium compounds by the reaction between aluminium, hydrogen and an olefin in the presence of an organo-aluminium compound, or between aluminium, hydrogen and an alkyl aluminium compound, the aluminium is in the form of an alloy with silicon.  Preferably the alloy contains 13 to 60% by weight of silicon, and relatively coarse fragments may be used. The alloy may be activated by known methods, e.g. crushing or cutting in a hydrocarbon solvent containing a small amount of organoaluminium compound, or passing a jet of the molten alloy into an inert liquid.
Patent GB-909994-A (GB)
Title: Improvements in or relating to straddle carrier vehicles
Inventor: HARTMANN RAYMOND THEOBALD
IPC: B66C19/00
Filed: 1958-10-30
Abstract: 909,994. Straddle carrier vehicles. MATERIALS HANDLING EQUIPMENT (GREAT BRITAIN) Ltd. Feb. 1, 1960 [Oct. 30, 1958], No. 34872/58. Class 78 (3). A straddle carrier vehicle has four legs 2 dependent from its chassis, each carrying a load engaging fork 1 and each mounted for rotation about its vertical axis by means of a ram 5 and lever. The legs 2 independently or together can be raised or lowered telescopically by hydraulic rams 3 and chains. A pair of fins 7 operable by rams 8 is provided to stabilize a load narrower than the distance between the legs 2 and distance pieces (not shown) may be provided if a load when fully raised does not contact the underside of the straddle carrier chassis. The hydraulic rams 3, 5, 8 are fed by a reservoir 10 and a pump 9, driven by the vehicle engine and control is effected by manually operable levers 13. The legs may have means whereby each fork can pivot about a horizontal axis 3 and the forks may be arranged to pivot about the legs instead of the legs being mounted for rotation.