baber/WOPTO huggingface dataset:
Patent GB-597507-A (GB)
Title: Improvements in or relating to transformers and motors for alternating current circuits
IPC: H05B31/00
Filed: 1943-07-16
Abstract: 597,507. Automatic control systems ; A.C. commutator motors ; transformers. VALLIS, L. C. July 16, 1943, No. 11601. [Classes 35, 38 (ii) and 38 (iv)] In a system in which an electrical load, e.g. a carbon arc for a cinematograph projector, is supplied through a transformer and an electric motor affects mechanical adjustment of the load, the armature of the motor is located in the magnetic field of the transformer and is supplied with current varying in accordance with an electrical characteristic of the load. In Fig. 1, a motor 8 controlling the spacing of arc electrodes (not shown) has its field constituted by a limb of a transformer 1, the primary 2 of which is supplied from an A.C. source 3, 4, and the secondary 12 of which supplies the arc electrodes, connected to terminals 13, in series with the primary 11 of an auxiliary transformer 10. The motor armature is supplied from the secondary 9 of transformer 10 and the arrangement is such that motor speed is dependent on arc current to maintain the arc gap constant. A switch 6 co-operating with tappings on primary 2 provides a control for striking the arc. Motor 8 may drive, through a flexible drive and/or variable speed gear, right- and left-hand screw-threads engaging the electrode holders.
Patent GB-542908-A (GB)
Title: Improvements in electron discharge devices of the electronvelocity modulation type
IPC: H01J25/12
Filed: 1940-07-12
Abstract: 542,908. Electron oscillators. STANDARD TELEPHONES & CABLES, Ltd. July 12, 1940, No. 11635. Convention date Dec. 14, 1939. [Class 39 (i)] In an ultra high frequency amplifier or oscillation generator wherein velocity modulation of an electron beam is obtained the interior of two resonators 130, 160, Fig. 1, are connected by a drift tube with grids 133, 162 at its end and the first resonator 130 carries a tube 136 projecting towards the cathode chamber 100. The cathode 109 is supported by a pivot 103 sealed to a copper tube which is carried by a steel plate 105 bolted to another steel plate 106 with aluminium gaskets interposed ; this plate is welded to a tube 107 fixed to the wall 111. The tube 136 is mounted in the diaphragm 135 which may be flexed for tuning by the micrometer adjusting means 122 acting through the lever 120. The farther wall of the second resonator carries a grid 163 but this end may be closed by a watercooled collector plate 705, Fig. 7 ; with an open grid a water cooled collector electrode 175 receives the beam after it has given up energy in the second resonator 160. To ascertain if the tube is working efficiently some electrons from the beam are allowed to impinge on a fluorescent screen 181 passing through a hole 176 in the electrode 175, the width of the image on the screen 181 indicates the working. A concentric line 171, 172 with the loop 177 takes off power from the tubes. Back coupling between the two resonators is obtained by (i) a loop 150, Fig. 1, the amount being variable by turning the loop from the micrometer screw 154; (ii) by a loop outside the resonator ; or (iii) by two concentric lines coupled outside the resonators by a trombone slide 703, Fig. 7, or by a line which combines the coupling with the output line. A single wall 700, Fig. 7, may separate the two resonators and the whole tube may be enclosed in a water jacket. The tuning may be effected by carrying the cathode directly from the tube 501, Fig. 5, secured to the first resonator, a screw ring 502 allowing for adjustment of .the tube 501. The grids used may be formed by radiating limbs 402, Fig. 4, between concentric rings all of tantalum or cast copper. The heater for the cathode is bifilar so as to be non-inductive.
Patent GB-625210-A (GB)
Title: Laminated pulp products
IPC: D21H27/32
Filed: 1947-04-30
Abstract: 625,210. Laminated pulp-board. CRUSTIN, A. April 30, 1947, No. 11636. Convention date, Nov. 4, 1943. [Class 96] Viscose neutralized, but not precipitated, by a weak acid or an acid salt, e.g. acetic, formic, lactic, carbonic, or sulphurous acid, or sodium bisulphite or alum is used as an adhesive for making laminated board from hard sheets or from paper or asbestos, or for adhering surfacing sheets to homogeneous board, the laminated sheets are lightly pressed and may be dried at normal temperature or passed through an oven.
Patent GB-587239-A (GB)
Title: Improvements in or relating to means for charging materials into furnaces or kilns for calcination, sintering or similar heat treatment of solid materials
IPC: B01J6/00
Filed: 1944-06-19
Abstract: 587,239. Charging furnaces &c. PRIEST, C. F. June 19, 1944, No. 11641. [Class 51 (ii)] [Also in Group XXX] Material for calcination, sintering or other heat treatment falls from a hopper on to a table and is pushed off the table while the hopper is traversed across the top of a furnace or kiln. As shown in Fig. 3 stone and fuel are delivered by elevators 17 down shoots 22 into hoppers 11, 12 and spread evenly across the hoppers by pivoted members 24 which are swung in vertical planes on the ends of the shoots. The hoppers 11, 12 are divided into chambers 29 by plates 28 and are formed in a casing 10 which is mounted on a bogie 13 running on a track 15 above one or more kilns 16. The stone and fuel fall on to tables 32, 33 and are delivered down a common shoot 36, during movement of the bogie, by plungers 34, 35 reciprocated by a motor 38. The plunger 34 has a fixed stroke whilst the stroke of the plunger 35 is adjustable to vary the proportion of fuel to stone delivered into the kiln by varying the point of connection of a rocking arm to a connecting rod 46. The elevators deliver material into the hoppers 11, 12 when the bogie is stationary at one side of the kiln and the plungers 34, 35 operate only during the whole or some part of the travel of the bogie along the track above the kiln.
Patent GB-739494-A (GB)
Title: A new or improved polishing machine
Inventor: SHARMAN JOHN CHARLES
IPC: B24B21/00
Filed: 1953-04-28
Abstract: 739,494. Polishing turbine blades. GARRINGTONS, Ltd. July 26, 1954 [April 28, 1953], No. 11659/53. Class 60. A machine for polishing a gas turbine blade or similar elongated workpiece 14 comprises a chuck 26 for releasably supporting the workpiece, a pair of relatively-displaceable polishing body supports 13 disposed on opposite sides of the workpiece and each resiliently supporting a polishing body, and means for relatively reciprocating the chuck 26 and supports 13 in the direction of length of the workpiece, relatively reciprocating these members in a second direction substantially along the major axis of cross-section of the workpiece, and traversing the workpiece relatively to the support for the entire length of the workpiece to be polished. The supports 13 are carried on two arms 15 pivoted on a slide 11 which is traversed by a feed screw 12; the two arms are urged together by a spring 16 and can be withdrawn by a handoperated cam 17. Each support consists of a bracket of inverted channel shape in which is mounted by means of a bolted pressure plate 21, Fig. 2, a rubber block 19. The inwardly projecting portion of each block is provided with a series of horizontal slits 20 and supports an abrasive strip 24 which is clamped at its ends between the block and adjacent parts of the bracket and pressure plate. The inner faces of the blocks may be flat or of convex or concave form to conform to the shape of the blade being polished. The chuck 26 pivots freely on an arm 27 which, to provide the longitudinal reciprocation of the blade between the polishing bodies, is oscillated from a driven shaft 32 through a connecting rod 31 and pivoted lever 29; the pivot 30 of the lever 29 also carries a forked arm 3 which is connected by a link 37 with the arm 27 and urged by a spring 36 into contact with a cam 34 mounted on the end of the feed screw 12. By means of this mechanism, the workpiece is reciprocated at relative high frequency in its longitudinal direction, traversed for the full length to be polished by manual operation of the feed screw 12 and, through the medium of the cam 34 as the feed screw is turned, caused to reciprocate in the vertical direction at a small frequency and amplitude; during this operation the pivoted mounting of the chuck 26 permits the blade to turn in accordance with its twist. For polishing a blade embodying an edge, such as a profile edge, at least one of the supports 13 is arranged so that its associated abrasive strip 24 extends partially around, and resiliently engages, the edge. The Provisional Specification describes also the opposed faces of the supports 13 as being of L- form so as to provide a shallow recess in which the blade is received for engagement by the abrasive strips.
Patent GB-1179394-A (GB)
Title: Mobile Load Lifting Apparatus
Inventor: BROWN DAVID JOHN BOWES
IPC: B66C23/70
Filed: 1966-03-17
Abstract: 1,179,394. Jib cranes. WINGET Ltd. 17 March, 1967 [17 March, 1966], No. 11674/66. Heading B8B. [Also in Division E1] A mobile crane or excavator comprises a main frame 4 pivotally carrying a jib 12 having sections 14. . . 17 which are pivotally interconnected so that they can be aligned when the jib is to be used or can be pivoted out of alignment for transportation, means for releasably locking the sections in alignment, a derrickportal frame 62 pivoted at 63 to the frame 4, jacks 60 extending between the pivoted end of the jib and the free end of the frame 62, and an adjustable strut 68 extending between the frame 62 and the jib. The locking means is described with reference to Fig. 4 (not shown), and includes a pneumatic or hydraulic ram provided for each pair of adjacent sections and operating four pins. Alternatively, the pins may be manually operated or the locking means may be on a separate unit disposed between the sections. A cable 67 extends from the frame 62 to the jib whereby the jacks 60 can be used to pivot the jib. When the jib is to be folded it is first lowered until it is horizontal, and then the sections 14, 15 are unlocked to permit the section 14 to rest upon the ground or on slidable supports attached between the section and the frame 4. The sections 16, 17 are thereafter unlocked and the jacks 60 used to fold the jib until it rests on a bolster on the frame 62.
Patent GB-762224-A (GB)
Title: Improvements relating to electric control systems
Inventor: CROWTHER FRED
IPC: H02H7/00
Filed: 1954-04-22
Abstract: 762,224. Protective cut-out arrangements. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. April 19, 1955 [April 22, 1954], No. 11696/54. Addition to 727,320. Drawings to Specification. Class 38(5) In a modification of the remote control arangement of the parent Specification in which the control of a circuit 4 interrupter is effected by a relay having a winding in series with a low voltage A.C. supply, a pilot line, a remote switch, a, half-wave rectifier and an earth return, the holding power of the relay is reduced by means of a local circuit completed on the operation of the relay or interrupter so as to be traversed by an unrectified A.C. current derived from the A.C. supply for the pilot circuit and effective to induce an alternating flux in the relay. The arrangements described are substantially those of the parent Specification without the provision of the half wave rectifiers in the local circuits. Specification 700,472 is referred to.
Patent GB-612733-A (GB)
Title: Improvements in or relating to voltage regulators and compensators for use therewith
IPC: G05F3/06
Filed: 1946-04-16
Abstract: 612,733. Automatic regulation. BUILDER, G. April 16, 1946, No. 11700. Convention date, April 17, 1945. [Class 38 (iv)] A voltage regulator for compensating for variations in frequency and/or temperature has means for connecting a compensating voltage in series with the load. A known type of voltage regulator 10, Fig. 1, the output of which may vary with frequency or temperature, is connected to a transformer T, the secondary of which is connected through an iron-cored inductance L1 to a tuned circuit L, C, R, having very low impedance at normal frequency, and to terminals 4, 4<SP>1</SP>. The output from terminals 4, 4<SP>1</SP> is connected in series opposition with the output 2, 2<SP>1</SP> of regulator 10 across load terminals 5, 5<SP>1</SP>. A variation in frequency causes a corresponding change in the series voltage across 4, 4<SP>1</SP> owing to the presence of L1 and compensates for the change in voltage across 2, 2<SP>1</SP>. Changes in temperature are compensated by the use of a temperature-sensitive capacitor C in the shunt circuit across terminals 4, 41. Fig. 2 (not shown) shows a combined regulator incorporating the components of regulators 10 and 11 of Fig. 1. In modifications, Figs. 3, 4 (not shown), the transformer supplying the regulator of the invention is connected across the input of the main regulating device.
Patent GB-1456494-A (GB)
Title: Fastening arrangement for sealing barrier in insulating wall of insulated compartment built into a ships hull
IPC: B63B25/16
Filed: 1975-03-21
Abstract: 1456494 Mounting tanks in ships GAZTRANSPORT 21 March 1975 [21 March 1974] 11871/75 Heading F4P Fastening means for attaching the intermediate sealing barrier 3 of a thermally insulated tank to the inner wall 1 of a ship's double hull whilst permitting limited relative movement of the barrier 3 with respect to the hull, comprises a plurality of fasteners 12, each fastener 12 comprising a tubular member 13 welded to wall 1 and carrying a head 15 on which is mounted a channel member 17 which can move laterally of head 15, a flanged stud 20 being threadedly engaged with channel member 17 and having its flange 24 sealingly welded to barrier 3. As shown, the tank comprises an inner primary fluid tight barrier 5, primary insulation 4, barrier 3 and secondary insulation 2. Insulations 2, 4 are each comprised by a plurality of rows of insulated boxes, each row extending horizontally and the boxes of each row being spaced from each other. The fasteners 12 are arranged in parallel lines along certain rows of secondary boxes 2, each fastener being located in a space between a pair of boxes. The head 15 is threaded on to a stud 14 rigid with tubular member 13 and it has an annular groove 16 in which the inturned edges 17a, 17b of channel member 17 slidingly engage to permit limited relative movement between the head and channel member in a direction along the respective row of boxes. The flanged stud 20 extends through the bottom of a channel member 21 whose sides bear on barrier 3 and each have a hole 25 to receive a projection 26 of an elongate channel member 27 which extends through aligned spaces of several rows of primary boxes 4. Thus a channel member 27 is held between a respective pair of fasteners 12. As shown in Figs. 1 and 4, the boxes 4 are mounted on these channel members 27, a threaded stud 32 extending through member 27 and through a plate 31 which coacts with notches 30 on tenons 29 of boxes 4 to clamp the boxes to the members 27. Tenons 6 on boxes 2 are clamped to wall 1 by means of studs 10 and plates 11. The tubular members 13 can be replaced by flexible plates, these plates providing the limited transverse movement so that the respective head 15 can be rigidly fixed to barrier 3 (Figs. 8 to 12, not shown). Alternatively, two flexible plates can be employed which are fixed to a channel member which supports means which are sealingly connected to barrier 3 (Figs. 13 to 16, not shown).
Patent GB-1455979-A (GB)
Title: Polyene compounds
IPC: C07C41/00
Filed: 1975-03-21
Abstract: 1455979 Polyene compounds F HOFFMANN-LA ROCHE & CO AG 21 March 1975 [22 March 1974] 11924/75 Heading C2C The invention comprises compounds of Formula I wherein R represents a lower alkenyl, lower alkynyl or cyclopropylmethyl group, R 1 , R 2 , R 3  and R 6  each represent a hydrogen atom or a lower alkyl group, R 4  and R 5  each represent a hydrogen atom or a methyl group, Y represents an oxygen or sulphur atom, X represents a group of the formula -COOR 7 , -CH 2 OR 7  or -COSR 7  in which R 7  represents a lower alkyl, lower alkenyl, lower alkynyl or cyclopropylmethyl group, n and p stand for zero or 1 and m stands for zero, 1 or 2. Compounds of Formula I may be prepared (a) by reacting an aldehyde II with a phosphine oxide III or (b) a phosphorane IV where X<SP>1</SP> is -COOR 7 , R 8  and R 9  are alkyl or aryl groups, and R 10 , R 11  and R 12  are aryl or dialkylamino groups; (c) reacting a carbonyl compound V with a phosphine oxide VI or (d) phosphorane VII (e) reacting a compound of formula with a compound J-R 7 , where one of the symbols J and K is a chlorine bromine, or iodine atom or the tosyloxy group and the other is -OM where M is an alkali metal or alkaline earth metal; (f) reacting II with a compound of formula and dehydrating the resultant compound of formula (g) reacting V with a compound of formula and dehydrating the resultant compound of formula (h) converting an acid XIV of Formula I in which X is -COOH, or the corresponding acid halide to the ester (X=-COOR 7 ); (i) reacting a compound of Formula I in which R is a hydrogen atom with a compound R 13 -Z in which R 13  corresponds, to R as initially defined, and Z is a chlorine, bromine or iodine atom or the tosyloxy group; (j) converting an ester of Formula I by trans-esterification to a different ester of Formula I; (k) reacting an acid halide of the acid XIV with an alkanethiol, alkynylthiol or cyclopropylmethyl thiol, if desired after previous conversion of thiol into a metal salt thereof. The compounds of Formula I are pesticides.
Patent GB-290625-A (GB)
IPC: D21H17/60
Filed: 1928-04-24
Abstract: 290,625. Spicers, Ltd., (Assignees of Friedlander, H.). May 18, 1927, [Convention date]. Fibres, treating.-An emulsion of hard wax is incorporated in loose fibres such as cotton, linen, silk, wool, or artificial silk, or in the pulp or the like from which paper, cardboard &c. is made. Agents adapted to secure the precipitation of the wax upon the fibres are added to the emulsion and a product is obtained which contains a proportion of hard wax considerably less than 30 per cent of the dry weight of the fibre. Where the emulsion is added to paper pulp a substitute for press-spahn or for vulcanized fibre is obtained. The wax is preferably first fused and heated to 230‹-250‹ C. while air is blown through. The emulsion thereof may contain organic solvents for the hard wax, such as carbon tetrachloride, with or without the addition of casein, fats, oils, or soaps, resin, or fatty acid soaps and similar materials, and resins singly or in combination one with another. The emulsion of hard waxes may be incorporated in artificial fibres by adding them to the solutions of cellulose compounds from which the artificial fibres are to be made. In the production of paper and the like the hard wax emulsion may be employed in association with known sizing agents. Specifications 262,828, [Class 96, Paper &c.], 273,647 and 297,364, [both in Class 2 (ii), Cellulose &c.], are referred to.
Patent GB-566713-A (GB)
Title: Improvements in or relating to the manufacture or production of exhausted hollow articles
IPC: H01J9/38
Filed: 1943-07-27
Abstract: 566,713. Making bellows ; soldering. MILLER & CO., Ltd., H., and SMITH, W. R. July 27, 1943, No. 12177. [Classes 83 (ii) and 83 (iv)] An exhausted hollow article is made by forming a hollow body 12, Fig. 4, with at least one opening, closing this by a cap 11 with fusible material between the cap and body, placing the whole in a chamber which is then exhausted, and then fusing said material. In making metal bellows or capsules for use in pressure recorders &c., the bellows 12 with two open ends closed by caps 11, 11a, having solder applied to their contacting faces, is placed between two heating coils 8. These are supported by the pillars 2 of a jig having seats 4, 15 between which the bellows &c. are clamped by a nut 10. The coils 8 are each arranged between insulating washers 13, 14 and each has one end connected to a terminal pin 7 and the other to a bracket 5 sliding on the pillars 2. A number of loaded jigs is placed in a chamber provided with electrical bus-bars or couplings for receiving the pins 7. The chamber is exhausted, the current turned on long enough to melt the solder, and, when the solder has set, the vacuum is broken and the chamber opened. The current may be turned on and off automatically and the temperature may be increased in stages. If the hollow body is not compressible, a spring may be included.
Patent GB-331807-A (GB)
Title: Means for turning cigarettes and like shaped articles when packing same
IPC: B65B19/06
Filed: 1929-05-07
Abstract: 331,807. Gottschalk, P., and United Cigarette Machine Co. Akt.-Ges. May 7, 1929. Divided on 329,814. Packeting cigarettes.-In apparatus for feeding cigarettes to a packing-machine, in which incorrectly placed cigarettes are turned so that the imprint lies upwards by the engagement of a catch with the seam, means are provided for positively disengaging the catch at a predetermined movement. The cigarettes a are fed on links b of a conveyer chain, and, if one is lying the wrong way up, the seam is engaged by a knife-edge f<2> mounted on a spring f<1>. The spring f<1> is pivoted at s<1> to a blade o<1> held in a clamp p<1> pivoted at p. When the engagement of the edge f<2> with the seam of a cigarette has caused contact points k<1>, u<2> to close a circuit x<1>, x<2> an electromagnet E attracts an armature z on a lever z<1> and causes a stop q<1> to depress the left-hand end of the spring f<1> and thus to disengage the knife edge f<2>. The closing of the circuit also actuates any suitable apparatus to turn the cigarette over into its correct position.
Patent GB-1390940-A (GB)
Title: Testing of packages
IPC: B65B57/02
Filed: 1972-03-16
Abstract: 1390940 Testing packages H FOCKE [trading as FOCKE & PFUHL 16 March 1972 [19 March 1971] 12235/72 Headings B8C [Also in Division G1] A package 12 is tested for the presence of a box label or sealing strip 18 over the raised edge 21 of a cover flap 20 by sliding a sensing member 11 over the package so as to abut the edge 21 and initiate a warning in the absence of label or strip. The sensing member 11 is pivoted on a housing 10 about an axle 28 and is biased towards a stop 29 by a spring 30. The housing 10 is pivoted on column 13 about axis 25 and is biased towards a stop 27 by spring 35. Column 13 may be pivoted about axle 14 by cam 15 to cause the sensing member 11 to slide over the package. If the end of the sensing member 11 abuts the raised edge 21 of the package, the head 10 rotates clockwise about its axis 25 and actuates an inductive sensor or a microswitch to initiate the warning. The sensing member is provided with a raised part 33 for abutting the edge 21 should the end 11a of the sensing member pass under the edge 21 of the flap 20. A member 32 is pivoted about axle 28 on housing 10 and biased towards stop 29 by a spring 34, and serves to hold the flap 20 down if it should be loose.