baber/WOPTO huggingface dataset:
Patent GB-508246-A (GB)
Title: Improved apparatus for immersing articles in plating baths and performing other like operations involving traversing and periodic raising and lowering
IPC: B65G49/04
Filed: 1938-03-23
Abstract: 508,246. Conveyers. CANNING & CO., Ltd., W., and CANNING, E. R. March 23, 1938, No. 8876. [Class 78 (i)] In electrodepositing and other apparatus for use in treating the surfaces of metal and other articles of the kind in which the articles are passed through a plurality of baths in succession by a conveyer, the track oh which the conveyer runs has movable sections which can be raised and lowered for the purpose of transferring an article from one bath to the next. Articles b to be treated are suspended from rods a which are supported at their ends by a track composed of fixed sections d and movable sections c, and are propelled by abutments g on endless chains h. Each section e, Fig. 1, is supported by a carriage n which is raised and lowered by chains s driven by an electric motor q. When a section is in the raised position, the rods are moved along it by abutments u on horizontally slidable bars v driven by a motor w. A lost motion connection 12, 13, 14 is provided between the motor w and the bars v in order that the articles may drain before the rods a are moved. Switches 3 ... 7 actuated by the moving parts are provided in order to render 'the action automatic. The switches may be replaced by hydraulic pistons arranged in closed pressure circuits through which electrical relays are actuated for controlling the motors. At the delivery end of the baths the articles are removed from the rods a which are then raised to a track 19 for return to their initial positions by the chains h. The rods are transferred from the'track 19 to the lower track by pivoted supporting members 20, Fig. 2, mounted on endless chains 21. Abutment members 23 move the members 20 into positions for receiving the rods, this movement being limited by pins 24 on the chains 21 engaging slots 25 in the members 20.
Patent GB-1447147-A (GB)
Title: Process for the preparation of norpatchoulenol
IPC: C07C43/23
Filed: 1974-02-27
Abstract: 1447147 Norpatchoulenol SOC ANON ROORE BERTRAND DUPONTE 27 Feb 1974 [28 Feb 1973] 8882/74 Heading C2C Norpatchoulenol is prepared by dehydrating a glycol of the formula The glycol may be prepared by hydrogenolysis of an ether of the formula
Patent GB-768595-A (GB)
Title: Improvements in or relating to variable pitch propeller
IPC: B63H3/04
Filed: 1955-03-25
Abstract: 768,595. Variable pitch propellers. FEROY. A. March 25, 1955 [March 30, 1954], No. 8884/55. Class 114. In a variable pitch propeller having a blade extending radially from the hub, a flange on and disposed normally to the blade is rotated to change the pitch of the propeller by means comprising a control member 30 movable axially in the hub 10 and operatively connected, as by a pin 26, to a self-aligning or laterally movable cam plate 25 having cam slots 24 in which slide blocks 23 surrounding pins 22 secured to the blade flange. The pins are disposed at opposite ends of the longer axis of the flange which is elliptical in shape. As shown, the slots 24 are straight but in a modification in which the hub consists of a pair of end caps screwed on to a split centre piece they are arcuate. The blade screws into a boss on the face of the flange and the flange bears against the hub 10 to take centrifugal thrust.
Patent GB-214435-A (GB)
Title: A device for use in composing tabular matter and the like, applicable to type composing and casting machines
IPC: B41B7/04
Filed: 1923-04-03
Abstract: 214,435. B÷rner, O. April 3, 1923. Strip-perforating machines; justifying type. - A device for facilitating the composition of tabular matter on single-type composing and casting machines consists of a detachable casing having pivoted to it a number of line-stop levers b, which can be independently depressed by means of keys a into the path of the linescale rack m, so as to serve as adjustable zero stops for the different measures of the line. The levers b have each a row of holes h spaced one em apart by which they are adjustably mounted on a common pivot l. A fine adjustment is effected by means of a screwed rod c carried by each lever. The end of the rod c serves to arrest the line-scale rack by encountering a spring buffer d carried by a sliding block n which is connected to the rack by a spring f.
Patent GB-871158-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor elements of high purity
Inventor: STERLING HENLEY FRANK
IPC: C01B33/029
Filed: 1958-03-21
Abstract: <PICT:0871158/III/1> Silicon is produced by bubbling a hydride of the element through a molten body of the element.  As shown silane is passed from a pipe 15 into a body of molten silicon 1 contained in a water-cooled crucible formed by a plurality of spaced hollow metal tubes 2 and a hollow metal base 4 having water inlet 5 and outlet 6. The metal may be silver or copper.  The crucible is contained in a silica tube 7 which is surrounded by a water cooled induction heating coil 10.  The molten silicon may be added as such from a side tube 11.  The silane is decomposed in the body 1 producing silicon which is absorbed and hydrogen which passes off through pipe 17.  The crucible may alternatively be as described in Specification 827,676. Specifications 745,698, 778,383 and 871,157 also are referred to.
Patent GB-547121-A (GB)
Title: Improvements in a pneumatic tyre
IPC: B60C11/12
Filed: 1941-07-21
Abstract: 547,121. Pneumatic tyres. UNITED STATES RUBBER CO. July 21, 1941, No. 9180. Convention date, Aug. 9, 1940. [Class 144 (ii)] In a pneumatic tyre tread in which slits 8 are formed in the ribs 6 the length of the slits at the bases of the ribs is substantially less than at the surface of the tread. Various forms in cross section of the slits are described in the Specification. Specification 542,268, [Group VIII], is referred to.
Patent GB-880946-A (GB)
Title: Improvements in the rolling and stacking of flexible synthetic resin sheets
IPC: B65D57/00
Filed: 1960-03-16
Abstract: 880,946. Laminates. SOC. DES USINES CHIMIQUES RHONE-POULENC. March 16, 1960 [July 4, 1959], No. 9355/60. Addition to 842,776. Class 140. [Also in Group XVII] In a package according to the parent Specificationa sheet of a polymeric fluorohydrocarbon or a glass fabric coated on both faces with a polymeric fluorohydrocarbon is used as an interlayer. The polymeric fluorohydrocarbon may be polytetrafluoroethylene.
Patent GB-768206-A (GB)
Title: Improvements in or relating to diphenolic acids
Filed: 1955-03-31
Abstract: 4,4 - Bis - (41 - hydroxyphenyl) pentanoic acid (see Group IV (b)), may be condensed with formaldehyde to give alkali-soluble phenolformaldehyde type resins useful in coating compositions, or reacted with polyhydric alcohols and drying oil acids followed by reaction of the mixed ester so obtained with formaldehyde to give oil-modified phenolformaldehyde type resins. An example describes the reaction of the above acid with linseed oil fatty acids and pentaerythritol in presence of xylene, followed by reaction of the product with paraformaldehyde in presence of oxalic acid.  After removal of water and xylene, the product may be dissolved in a mixture of butyl acetate, butyl alcohol, and methyl isobutyl ketone.ALSO:The invention comprises 4,4-bis-(41-hydroxyphenyl)-pentanoic acid having the formula <FORM:0768206/IV(b)/1> and a method of preparing it by condensing phenol with laevulinic acid in presence of a non-oxidizing mineral acid, such as sulphuric, hydrochloric, with or without calcium chloride, and phosphoric acids.  Examples of this method are given.
Patent GB-825168-A (GB)
Title: Improvements in or relating to tool heads, for lathes and like machines
Inventor: ROMI GIORDANO
IPC: B23Q16/10
Filed: 1957-03-22
Abstract: 825,168. Lathe &c. turret tool-holders. MAQUINAS AGRICOLAS ROMI S.A. March 22, 1957, No. 9494/57. Class 83 (3). In a tool-turret, having a tool holder 7 pivotable about a spindle 6 attached to a lathe slide 1, indexing is effected by a spring-urged pin 4, engageable with tapered arcuate recesses 14 in the holder 7, and clamping is effected by a nut 11, having partly tapered arcuate cams 16 engageable with similar cams 15 on the holder 7, the nut 11 being attached to the spindle 6. In operation, the holder 7, clamped to slide 1 by pressure exerted between the horizontal surfaces of cams 16, 15, is keyed in position by a prismatic member 2 on the slide 1 engaging a slot 13 in the holder 7. To release and index the holder 7, rotation of the nut 11 allows a spring 8 to free the holder 7 from the member 2, and the vertical radial surfaces of cams 16, 15 abut to form a clutch and holder 7 rotates, the pin 4 leaving the one recess 14 and entering the next. When nut 11 is rotated in the opposite direction, the pin 4 engages the radial face of recess 14 to pre-locate the holder 7, and the cams 16, 15 run up their inclined surfaces until the horizontal surfaces engage and clamp the holder 7 down on the member 2. In a modification, the nut 11, screwing on the spindle 6, moves towards the slide 1 during clamping.
Patent GB-657966-A (GB)
Title: Improvements relating to bushes for sealing rotating shafts
IPC: F16J15/40
Filed: 1949-04-07
Abstract: 657,966. Stuffing-box substitutes. ANGUS & CO., Ltd., G., and JAGGER, E. T. April 7, 1949, No. 9496. Addition to 621,526. [Class 122(v)] In a sealing device for a rotating shaft with minimum clearance between relatively rotating parts, comprising a substantially rigid bush a formed on a periphery with a helical groove b and connected by a resilient annular web d to a rigid mounting e as claimed in the parent Specification, the helical groove b is stopped at b<SP>1</SP> intermediate the ends of the bush a. The helical groove is preferably stopped only near the end remote from the oil supply.
Patent GB-335919-A (GB)
Title: Improvements in and modification of the folding or collapsible ruling and measuring tool
IPC: G01B3/06
Filed: 1929-03-25
Abstract: 335,919. Penkala Tvornice D. D. Jan. 31, 1929, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 335,918. Setsquares.-Two of the arms 14, 15 of a setsquare &c. are connected to the third arm 16 by pivots 30, 31 and are connected together at their outer ends by a press-fastening &c. 29 so that they can be disconnected from each other and then turned into alignment with the arm 16 so that the whole forms a ruler. In Fig. 6 all the arms are slotted to enable a square having any desired angles to be formed.
Patent GB-542280-A (GB)
Title: Improvements in or relating to the distillation and condensation of metals
IPC: C22B26/22
Filed: 1940-05-31
Abstract: 542,280. Distilling metals. ALLOY PROCESSES, Ltd., and GENTIL. H. L. May 31, 1940, No. 9554. [Class 82 (i)] The condensation of metals is effected in vacuo in a jet condenser by means of a condensing liquid of low vapour pressure such as an oil of high boiling-point, and the condensing liquid and the condensed metal are withdrawn together so that the liquid acts as a seal which prevents the ingress of air. The liquid may be separated from the metal and circulated for re-use. In the apparatus shown, a condenser 18, to which a barometric column 20 is connected, communicates with the reaction chamber 11 and has an outlet 23 to a vacuum pump, cooling liquid being supplied to the condenser through a spray 19. Condensing liquid from a compartment 25 of a sump 21 at the foot of the column 20 is pumped to a cooler 28, and thence by way of a receiver 30 and pump 35 to the spray 19. The condensed metal is recovered from the sump 21. In a modification the barometric column is replaced by a venturi tube. Specifications 527,124, 531,545, and 532,115 are referred to.
Patent GB-1527053-A (GB)
Title: Material for and methods of temporarily presenting indici
IPC: G09B3/04
Filed: 1976-03-10
Abstract: The device comprises layers (1), (3) and (4). The sheet of paper (1) carries a permanent mark (2) and is coated top and bottom in each case with a transparent synthetic-resin material film (3, 4). The temporary mark can be applied to the film (3) by means of a writing substance which contains a water-soluble dye and a solvent which evaporates at room temperature. <IMAGE>
Patent GB-412724-A (GB)
Title: Improvements relating to depth maintenance runners as applied to rotary tilling machines
IPC: A01B33/06
Filed: 1933-03-30
Abstract: 412,724. Implements and machines for working land. FOWLER & CO. (LEEDS), Ltd., J., Steam Plough & Locomotive Works, STOREY, N. C., and HASSON, P. R., 13, Leathley Road, Hunslet, both in Leeds. March 30, 1933, No. 9626. [Class 6 (i).] Rotary tilling machines in which one or more tillers or sets of tools are mounted so as to engage the ground when the axis of revolution is vertical or nearly vertical, are provided with one or more supporting runners adapted to travel beneath the surface of the soil behind the tillers to maintain them at a constant even depth irrespective of the up and down movement of the tractor and of the varying load on the tillers themselves. The runners are carried by tines which are mounted so as to swing laterally and which are provided with means for attaching mouldboards &c. for ridging and ditching purposes &c. The runner 50 may be half-round in section and may be pointed or bevelled at both ends so as to be reversible. It is connected by pins 52 to a tine 51 provided with holes 53 to receive bolts 56, 57 for adjustably connecting it to upper and lower swing hinges 54, 55 which are rigidly connected together and are hinged on a substantially vertical pin 59. To regulate the depth of work the inclination of the tine and runner is adjustable by means of eyebolts 60 engaging the bolt 56 which passes through slots in the hinge 54. The lower hinge 55 is provided with projecting-points 65 which limit the lateral swing of the tine. Mouldboards 106 may be hinged on a bracket adjustably bolted to the tine 51, and may be adjustably connected to a central brace by screwed rods and nuts. In a modification the inclination of the runner to the tine is regulated by means of a screwed rod connected to the pivoted runner and passing upwards through a lug on the back of the tine. The runner may be set at a lower depth than the tilling tools.
Patent GB-1154668-A (GB)
Title: Device for Remote Supervision of Repeaters.
IPC: H04B17/40
Filed: 1968-02-29
Abstract: 1,154,668. Monitoring repeaters. C.T.I.- COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 29 Feb., 1968 [29 March, 1967], No. 9795/68. Heading H4R. In a device for the remote supervision of repeater amplifiers each repeater includes an oscillator, of frequency characteristic of that repeater, whose output is inhibited on detection at the repeater amplifier output of a signal whose level is within a predetermined small range. To monitor a repeater a frequency selective receiver at the monitoring station is tuned to the frequency characteristic of the repeater to be tested, and the output level of a variable frequency oscillator is adjusted until the selective receiver output disappears. By adjusting the frequency of the variable frequency oscillator the frequency response of the repeater amplifier may be tested. Fig. 2 shows a repeater using different frequency bands for the different directions of transmission and in which the test signal transmitted from one terminal station appearing at the output of the repeater amplifier 125, is amplified and applied to rectifier 127 to derive a D.C. control voltage proportional to the test signal level. The control voltage is applied to the bases of the opposite conductivity type transistors Q1 and Q2 which are so biased, from potentiometer 108, that one or the other conducts, to feed the output of oscillator 128 via transformer T4 to the input of the repeater amplifier, except when the control signal level is very nearly equal to the voltage from potentiometer 108. The frequency of oscillator 128 is arranged to be in the band to be returned to the monitoring station, or is transposed to that band after reception at the other terminal station. At the monitoring station the output of the variable frequency oscillator may be automatically adjusted to value which inhibits the production of the characteristic frequency at the repeater and a frequency response curve may be automatically plotted. The sensitivity of the oscillator inhibiting circuit may be increased by deriving the bias on the transistor Q1 and Q2 from different bias potentiometers. The oscillator may be inhibited by arranging the level sensitive circuit in the feedback path of the oscillator.
Patent GB-862668-A (GB)
Title: Improvements in or relating to kilns
IPC: F23M9/00
Filed: 1958-03-27
Abstract: 862,668. Brick kilns. EDWARDS, E. Feb. 25, 1959 [March 27, 1958], No. 9797/58. Class 51 (2). Even distribution of heat in a down-draught kiln for firing ceramics is assisted by the provision of a baffle wall 24 spaced about two inches from a kiln wall 11 and defining an air trap connected to a longitudinal floor flue 14 through a series of chambers 28 interconnected by a tunnel 29. The duct 14 has a connection 16 with a chimney 15, which may be replaced by an extraction fan. A duct 32 with a valve 33 connects the air trap with the outside atmosphere and underfeed fireplaces 20, 21 are provided. The chambers 28 open into the flue 14 at 30 over a diffuser bridge extending across said flue, and during the firing of blue bricks in a smoky atmosphere, the valve 33 is opened, allowing air to enter the chambers 28 where it is preheated before assisting combustion of the smoke in the flue 14. In a modified construction shown in wall 11 the air trap 35 is disposed in said wall and is connected to the atmosphere by a duct 37 with a valve 38. The air trap may be extended in or near the end walls, as shown.
Patent GB-452402-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F37/40
Filed: 1936-04-02
Abstract: 452,402. Brakes. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. April 2, 1936, No. 9799. Convention date, April 2, 1935. [Class 103 (i)] [See also Groups VIII and II] In a combined washing and drying machine, the washing is effected by the oscillation of an agitator 35 within a receptacle 22. After the washing operation the rack which oscillates the agitator is disconnected and a unidirectional high speed transmission is clutched to the receptacle-shaft. When the high speed train is declutched a brake is automatically applied to the shaft, the torque due to the friction between the brake shoe and the brake drum on the shaft increasing the braking effect whereby the shaft is rapidly stopped. As soon as the shaft stops, the brake is automatically released. Movement of the rack 87, Fig. 3, into and out of engagement with the pinion 88 fast on a shaft 69 connected to the shaft 20 of the agitator and receptacle through a universal joint 63, 65 is controlled by a cam 104 on a manually-operated shaft 105. Another cam 115 on the shaft 105 controls the movement of a clutch element 80 splined to the shaft 69 into and out of engagement with a gear-wheel 81 constantly driven at high speed from the shaft 78. The cam-shaft 105 is operated from an external handle 143, movement of which also controls the circuit to the motor 75. Another cam 133 on the shaft 105 is provided with a notch 137. This cam coacts with a stop 132, Fig. 10, on a lever 130 pivoted at 131 to a fixed point and engaging a boss 136 on another lever 118 pivoted to another fixed point 119. The brake shoe 120 is pivoted to a cap 125 on the end of a pre-stressed spring 123 housed within an aperture in the lever, and the shoe is maintained in the position shown by a spring 127. When the notch 137 of the cam 133 comes opposite the stop 132, the spring 127 rotates lever 118 clockwise and applies the brake which is increasingly wedged against the drum 66 on the shaft 69 by the frictional torque, the cap 125 tending to travel to the right and compress the spring 123 still further. When the frictional torque falls to zero, consequent on the shaft stopping, the force of spring 123 acting on the same side of the shaft 69 as the point 119 restores the arm 118 to the " brake-off " position.
Patent GB-269207-A (GB)
Title: Improvements in or relating to super-regenerative amplifying systems
IPC: H03D11/02
Filed: 1927-04-09
Abstract: 269,207. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Balsley, J. R.). April 12, 1926, [Convention date]. Thermionic heterodyne receivers. - A superregenerative amplifier of the kind described in Specification 182,135 is combined with a frequency-changing arrangement which increases the frequency of the incoming signals. The super-regenerator is permanently tuned to the converted frequency, and is thus adapted to function under stabilized conditions and at maximum efficiency. Incoming signals are first heterodyned by a thermionic oscillator 11, back-coupled through the coils 14. 12, and the resulting higher frequency is rectified by a detector valve 5, which may be replaced by a crystal. The new frequency is subjected to super-regenerative amplification by a single valve 23 or an equivalent combination arranged to amplify and detect the signal components, and at the same time to produce a supersonic quenching frequency through the back-coupling coils 27, 33. In order to prevent re-radiation of the quenching frequency, the plate and grid circuits of the valve 5 are stabilized by a balancing circuit including the coil 19 and condenser 20. The tuning controls of the receiver as a whole are thus reduced to two. namely the input circuit 3, 4 and the local oscillator circuit 12. 13. The fixed tuning of the superregenerative circuits may be stabilized by means of piezo-electric crystals. Suitable values for the various circuit components are set out in the Specification. Specification 229,938 also is referred to.
Patent GB-472914-A (GB)
Title: Improvements in means for threading the tuft yarns through the tube frames of axminster looms
IPC: D03D39/06
Filed: 1936-04-03
Abstract: 472,914. Threading Axminster loom tube frames. DUTFIELD, J. H. April 3, 1936, No. 9837. [Classes 142 (iii) and 142 (iv)] The tuft yarns from the spool are separated by being gripped in the elongated grooves 3 of a holder comprising two broad - faced shallow bars &c. 1, 2 provided with corrugated members on one or both faces. The grooves coincide with the tuft frame tuft tubes, the threading of which is thus facilitated. The ridges on one member may engage the grooves in the other, or as shown, the grooves may be coincident, or one bar may have a flat surface.
Patent GB-934143-A (GB)
Title: Improvements in the production of brewers' wort
Inventor: DUMMETT GEORGE ANTHONY
IPC: C12C7/06
Filed: 1959-03-20
Abstract: The method and apparatus for the production of brewers' wort described and claimed in the parent Specification is improved or modified by provision for regulating the temperature of the plug. Several embodiments are disclosed.