baber/WOPTO huggingface dataset:
Patent GB-557330-A (GB)
Title: Improvements in or relating to roller tube expanders
IPC: B21D39/10
Filed: 1942-05-12
Abstract: 557,330. Tube expanders. BABCOCK & WILCOX, Ltd. May 12, 1942, No. 6426. Convention date, May 15, 1941. [Class 83 (iv)] A tube expander of the kind comprising a cage containing axially adjustable rollers co-operating with a longitudinally movable positively rotated tapered mandrel particularly for expanding tubes of substantial thickness into long seats in the drums of steam generators, has a cage 10 movable longitudinally during the expanding operation and idlers whose expanding surfaces are arranged to complete the tube metal flow progressively from the innermost to the outermost part of the tube. The rollers have portions 112, 110, 114, the portion 112 extending outwardly of the mandrel axis further than the portion 110. The portion 110 and the curved end 114 do the initial part of the expanding which is finished by the portion 112. The portion 112 has a taper slightly greater than half the mandrel taper the surface part being substantially parallel to the mandrel axis and the portion 110 has a taper slightly less than one half the mandrel taper. The rollers are guided in recesses in the cage having curved outer ends to prevent the rollers falling out, the recesses being closed by a ring 62. They are inclined to the mandrel axis in a horizontal plane at 2 degrees so that the cage moves longitudinally of the tube during operation. They are also inclined in the vertical plane at an angle of 3¢ degrees to the mandrel axes. In expanding the tubes into the tube seat in the drum the tube is first expanded against a zero of the tube seat remote from the adjacent end of the tube and the expander moves outwardly of the tube during operation to effect progressive expansion of the tube towards the end thereof so that the flow of metal is outwards thus avoiding compres- 'sive stresses in the portion of the tubes between the drums 4. The expander is provided with a removable stop collar 40 and after placing the expander in the tube so that the inner end of each roller is inch to ¢ inch beyond the wall 14 the mandrel is longitudinally adjusted by an air motor engaging the squared end 28 thereof, while a rotatably mounted screwed sleeve 30 inserted in the cage between a thrust bearing 36 and a locking ring 38 is held by a spanner engaging an extension 32 thereof. When the rollers have been moved radially sufficient to expand the tube the sleeve 30 is released and rotation of the mandrel by the air motor maintains the pressure and automatically advances the expander outwardly of the tube. When frictional resistance resulting from contact of the rollers with the tube reaches a sufficient value the rollers rotate planetarily and so rotate the cage and the inclination of the rollers feeds the expander progressively to the end of the tube.
Patent GB-150631-A (GB)
Title: Improvements in, or relating to, the drying of fabrics
IPC: D06C7/00
Filed: 1920-03-03
Abstract: 150,631. Backer, W. March 3, 1920. No Patent granted (Sealing fee not paid). Drying fabrics.-Fabrics are dried after treatment with size &c. by passage through a heated chamber wherein they are carried on frictionally driven smoothing rolls which are kept cool by the passage of air through them from open-ended branch pipes connected with them and leading to atmosphere. Fig. 1 shows a ribbon drier wherein the ribbons are led from the rolls a running in a vessel containing a finishing-material to a drying-chamber i wherein they pass over smoothing- rolls e driven by friction disks from the driving- mechanism. The rolls e are hollow and may be mounted on ball bearings on the ends of pipe framing d which is provided with branches l leading to atmosphere. The ribbons are passed over any number of the rolls e by the attendant according to the time necessary to complete the drying process, and are withdrawn by rclls k. The rolls a, e, k are provided with rings o, Fig. 2, which keep the ribbons separate, but may be removed to one side when broader fabric is treated. The rolls a are driven from the driving mechanism by means of a belt passing over conical pulleys m, a belt shifter n serving to vary the speed.
Patent GB-575795-A (GB)
Title: Improvements in chimney and ventilating shaft tops
IPC: F23L17/02
Filed: 1944-04-06
Abstract: 575.795. Chimney &c. tops. HALLER, F., and MORTON, A. I. April 6, 1944, No. 6471. [Class 25] A chimney or ventiprises a conical chamber 11 and cylindrical base lating shaft top com- 10 having a domed top 12 with a flange 13 for supporting it upon a chimney or shaft. Curved ducts 14 communicating with the atmosphere extend from the side walls to the dome and are provided with openings 16 by which smoke or air may enter the ducts. Horizontal ducts 17, 19 also communicate with the atmosphere and are provided with openings 18, 20 for the passage of smoke or air into the ducts from the chimney or shaft.
Patent GB-956512-A (GB)
Title: Apparatus for metering sugar syrup in the production of caramel
IPC: A23G3/04
Filed: 1962-02-20
Abstract: 956,512. Caramel production. CARLE & MONTANARI S.p.A. Feb. 20, 1962 [Nov. 20, 1961], No. 6486/62. Heading A2B. [Also in Division G3] In apparatus for the production of caramel involving a container A for the preparation of sugar syrup, a vacuum cooker vessel C and draw-off device D for the caramelized, cooked syrup, the draw-off of a batch of cooked syrups of a predetermined weight is carried out on the basis of a volumetrically determined quantity of liquid in a measuring vessel B, whatever the rate of production of cooked syrup by the cooker vessel may be, e.g. as between the production of hard unfilled caramels and filled caramels of paste-like consistency. It is arranged that the volumetric quantity of syrup as that occupying the volume in the vessel B between the terminal points 8<SP>1</SP>, 9<SP>1</SP> of two sensitive probes 8, 9 (or a multiple or proportion thereof); for this purpose preferably the maximum level probe 8 is vertically adjustable through a rack and pinion arrangement, Fig. 3 (not shown). Electrical pulses emitted by the minimum level probe when the syrup level falls below 9<SP>1</SP>, are utilized in a known way to actuate pump P1, or alternatively a gravity feed device (not shown), for replenishing the measuring vessel B with syrup from a storage vessel 4 beneath container A and for either signalling aurally or visually the time for manually drawing-off, or actuating the automatic draw-off of a batch of cooked syrup of the required weight from the cooker. If production is slowed up, the liquid level in the measuring vessel B will take longer to descend but the weight of cooked syrup drawn-off in response to the signal will remain unvaried.
Patent GB-164456-A (GB)
Title: Improved combined stop and regulating valve
IPC: F16K31/60
Filed: 1920-03-03
Abstract: 164,456. Lloyd, W. E., Gerhold, A., and Amos, A. W. March 3, 1920. Stops, adjustable; locking.-A stop valve is actuated by a cap with internal threads working on a threaded portion of the valve casing so that more rapid actuation is obtained. The valve c opening against the pressure of the fluid is made integral with its spindle f and is formed with a bevelled and rabbeted seat. The upper part of the casing is threaded externally at d and co-operates with a cap c. The spindle f is squared where it passes through a washer g, and the latter is polygonal and fits into a similar recess in the cap e. The parts are secured by a nut i which may form or be covered by a cap r. An adjusting nut l to limit the opening of the valve may be provided with a bevelled surface m which engages with the lower end n of the cap e to provide an additional closure against leakage.
Patent GB-1489443-A (GB)
Title: Compact analyzer of rotary cuvette type
IPC: G01N21/07
Filed: 1975-02-17
Abstract: 1489443 Rotary cuvette analyzer UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 17 Feb 1975 [12 March 1974] 6552/75 Heading G1A In an analyzer of the rotary cuvette type for selectively making absorbance or fluorescence analysis of a multiplicity of samples 9, a frame 2 contains two light paths 17,31 (for absorbance or fluorescence measurements respectively) along which light from a source 12 is directed as shown via lenses 14, 15, 32, reflectors 26, 34 and selectable filters 25, 28, to pass through or into the sample cuvette. The resulting attenuated light or fluorescence is received by a photo-multiplier 13. The paths  17,31 may be selectively blocked out by an opaque disc in one of the selectable filter positions of a holder 29 or, by an opaque cover for the cuvette rotor 23. The rotor mount 7 and its associated motor 6 are pivotally mounted by a hinge pin 4 to the frame 2 to enable it to be swung out for loading. A "light reflection transducer" 43 containing photoemitting and photodetecting elements detect reflective marks on the bottom of the rotor 7 to provide cuvette synchronization signals for use in a data processing system.
Patent GB-329982-A (GB)
Title: Improvements in or connected with apparatus for playing games
IPC: A63D15/00
Filed: 1929-02-28
Abstract: 329,982. Prebble, A. E. Feb. 28, 1929. Table games.-Apparatus for playing a game combining billiards and shove-halfpenny comprises a table with a permanent opening at one end from which suitable discs may be hand-propelled, as in shove-halfpenny to obtain cannons with other discs on the table or to enter pockets situated at the sides and top corners of the table. Fig. 1 shows the table having a base of slate or similar material with pockets 9, 10, 11, 12 situated between cushions 3 - - 7 comprising oak strips lined with resilient material such as rubber 8. Discs are played from the open end 15 and the points, which may be scored as in billiards, are registered by means of pegs placed in the scoring boards contained along the side cushions 3 - - 6. Specification 320,404 is referred to.
Patent GB-591014-A (GB)
Title: Improvements in or relating to the doors or gates of lifts and hoists
IPC: B66B13/06
Filed: 1945-03-16
Abstract: 591,014. Interconnected doors. HARVIE, C. March 16, 1945, No. 6632. [Class 20 (iii)] [Also in Group XXV] A lift has two doors A and B of the balanced oppositely-moving vertically-sliding type situated on opposite sides of the lift shaft, the upper part a<1> of the door A being Connected to the lower part b<2> of the door B by a rope C' which passes over two pulleys at the head of the shaft and the lower part a<2> of the door A similarly connected by a rope C<2> to the upper part b' of the door B. An endless rope D which is parallel with the transverse portions of the said ropes has one of its sides connected at d<1> to the rope C' and the other side connected at d<2> to the rope C<2>, whereby both parts of both doors are operable simultaneously. In a modification the endless rope is dispensed with and the rope C<2> is carried three times across the shaft, the middle one of its three transverse portions being connected to the transverse portion of the rope C'.
Patent GB-672563-A (GB)
Title: A device for facilitating the drawing of the normal at a point on a plane curve
Inventor: DYSON JAMES
IPC: B43L13/18
Filed: 1950-03-17
Abstract: 672,563. Mathematical drawing-appliances. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. Jan. 4, 1951 [March 17, 1950], No. 6769/50. Class 97 (iii). A device for drawing the normal at a point 1 on a plane curve 2 comprises two blocks 5, 6 of transparent material cemented together with their top and bottom faces parallel to each other and normal to the interface which is so arranged for reflection that, when the device is placed on the curve with the interface normal to the plane of the curve, on looking down through the top face of one block, e.g. 5, at an angle slightly oblique to the interface, a portion 9 of the curve is seen through the bottom face of the block and a mirror image 10 of this portion is also seen formed by reflection at the interface. One block 6 may be longer than the other so that when the curve seen directly through the bottom face and its mirror image are continuous and without a kink the normal may be drawn by running a pencil point along the extended portions of the block 6.. The position and direction of the normal may be checked by observing a portion of the curve on the other side of the interface in a similar manner through the top surface of the block 6. To magnify any misalignment of the curve and its mirror image a magnifying lens with a convex cylindrical surface may be cemented to or formed integral with the top surface of one or each of the blocks, the cylinder axis being arranged at right angles to the interface in such a manner that when looking through the lens, lengths parallel to the interface are magnified whereas lengths perpendicular to the interface are unchanged. To obtain reflection at the interface one of the blocks may be silvered or aluminized or the like on its surface adjacent the interface. Alternatively the adjacent surfaces at the interface may be cemented together only in part so as to leave an air film between the two blocks or the blocks may be cemented together by means of a material, such as that known by the Trade Name " H.T. Cement," which has a refractive index sufficiently lower than that of the material of the blocks to allow total reflection to take place.
Patent GB-1365309-A (GB)
Title: Method of making a plastics bag and bags produced by said method
IPC: B65D75/58
Filed: 1971-06-09
Abstract: 1365309 Bags H G JENTSCH 9 June 1971 [11 June 1970 30 March 1971 1 April 1971] 6838/74 Divided out of 1365308 Heading B8K [Also in Division B5] This Specification includes subject matter substantially the same as that described in Specification 1,365,308, but the claims relate to a method of forming a bag, and the bag so formed, from a laminated blank and including a step of re-welding at least some of the weld seams so that portions of the exterior outer layer of the laminate are welded together. The re-welding is effected by welding jaws 62. This Specification also discloses a further embodiment of the bag (Figs. 9-12) which is made by forming a bottom gusset in a blank which has been folded in half, welding along the two lower folds of the gusset to form welds (54) and welding the folded blank along its longitudinal edges to form weld seams (12) which are subsequently rewelded. The initial longitudinal welding is effected by welding bars (Fig. 9) which are provided with facings (60) and heated at different temperatures in different regions thereof to compensate for the difference in thickness between the upper and lower regions of the bag.
Patent GB-959715-A (GB)
Title: Control circuit arrangement for electric furnace
Inventor: HARRISON PERCIVAL RONALD
IPC: H05B7/148
Filed: 1962-02-22
Abstract: 959,715. Control systems for arc furnaces. BIRLEC-EFCO (MELTING) Ltd. March 7, 1963 [Feb. 22, 1962], No. 6944/62. Drawings to Specification. Heading H2H. [Also in Division G3] A three-phase electric furnace is supplied with alternating current through a tap-changing transformer and the power consumed by the furnace is determined by an induction type watt-hour meter actuating impulses contacts at a rate dependent on the meter rotor rotation. The impulse contacts actuate a " first charge " relay and a " back-charge " relay, the holding times of which are adjusted in dependence on the weights of the charges. The relay controls a motor driving a cam sequentially operating micro-switches selecting the taps on the transformer, so that the angle through which the cam is moved for each impulse is related to the charge-weight. In an alternative arrangement banks of tap-changing uniselectors are arranged so that the uniselectors are stepped between the impulses from the watt-hour meter in dependence on the charge weight. The stepping of the uniselectors is also modified in dependence on the quality of the charge. When power is cut-off from the furnace the heat loss is compensated for by (1) driving the cam in reverse at a predetermined rate, or (2) stepping the uniselectors back at a rate determined by a capacitor delay circuit. The drive to the motor or uniselectois is inhibited when the furnace temperature is above a desired value. The end of the melt-programme is audibly or visually signalled and the arrangement may be manually actuated.
Patent GB-655884-A (GB)
Title: Improvements in or relating to revolving distributors for blast furnaces
IPC: C21B7/18
Filed: 1948-03-06
Abstract: 655,884. Charging blast furnaces. BAIER, J. F. March 6, 1948, No. 7008. Convention date, June 20, 1947. [Class 51(ii)] In a revolving distributer for a blast furnace having a double-bell delivery device a ring surrounds and is associated with the small bell seat for rotation therewith said ring defining an annular space with the seat and comprising a plurality of arcuately formed segments secured detachably together. As shown in Fig. 1 the rotatable bell seat 10 and attached hopper 13 is supported by an annular girder 12 having a skirt 14 provided with a bifurcated packing ring 50 which engages a fixed ring 51 the two forming, as snown in Fig. 4, with packing 53, stuffing box 52 and packing gland ring 54, the sealing means between the fixed and movable parts of the furnace. The rings 50, 51 and 54 and stuffing box 52 are of sectional construction preferably being of four or more sections whilst packing 53 comprises a mixture of asbestos and copper wire impregnated with oil. The annular space of the ring 50 into which the flange of ring 51 projects is filled with grease forced through a plurality of openings 57. Girder 12 is provided at its outer edge with a track insert 16 to run on supporting frustro-conical rollers 17 the drive to the belt seat and hopper being through pinion 20, Fig. 3, engaging with the annular gear rack 19. Rollers 24 run on the top track surface 23 of the ring gear 18 the vertical surface 21 of which engages guide rollers 22. Rollers 17, 22, 24 are carried by three columns 27 disposed around the periphery of the furnace top and braced together by beams 28, Fig. 3. The guide rollers 22 may be dispensed with if the box 52 and wall 56 are strong enough to take up any side thrusts.
Patent GB-905740-A (GB)
Title: Improvements in or relating to magnetic heads having rotative pole pieces
IPC: G11B5/187
Filed: 1960-02-29
Abstract: 905,740. Sensing characters for automatic reading. COMPAGNIE DES MACHINES BULL. Feb. 29, 1960 [March 4, 1959], No. 7079/60. Class 106 (1). A magnetic head for sensing characters printed in magnetic ink consists of a series of moving pole pieces 31c, 31d, 31e, &c., Fig. 5, which are alternately linked by magnetic elements 34 or 36 to the upper or lower pole pieces of a stationary magnetic core 11 having an output winding 12, Fig. 4. In the form described sixty pole pieces are carried on the periphery of a rotating disc, Fig. 1, and the stationary core 11 subtends an angle A such that it is linked with either three or four moving pole pieces, that is at least two gaps 32, Fig. 5, have their associated pole pieces linked to the core 11 at any instant. The record 40 bears magnetic characters 41, 42 having a height about equal to the pitch between pole pieces so that there is always one gap scanning across the character. The magnetic fluctuations in this active gap are transmitted to the output coil which therefore delivers a series of signal representing sections through the character in vertical parallel scans. The pole pieces and magnetic link members may be integral. In the form of Fig. 11 the core member 11 is arcuate and fits inside the rotating pole pieces 31d, 31e &c.
Patent GB-1426911-A (GB)
Title: Process for the preparation of starch derivatives
IPC: C08B31/00
Filed: 1973-02-13
Abstract: 1426911 Water soluble starch derivatives CPC INTERNATIONAL Inc 13 Feb 1973 [14 Feb 1972 (2)] 7118/73 Heading C3U A process for preparing water-soluble starch derivatives consisting essentially of granules and swollen non-birefringent granules of a starch derivative having a DS of at least 0À005 comprises (a) preparing an alkaline mixture of (1) granular starch (2) at least 0À005 moles per mole of anhydroglucose units of the starch of a cationic reagent as defined below or a reagent having the formula (R<SP>11</SP>CO) 2 O; SO 3 .N(R<SP>11</SP>) 3  or having the formula A-Z where A is X-CH 2 - ; and Z is -CH 2 .SO 3 M ; -CN ; -CONR<SP>1</SP> 2  ; -R<SP>1</SP> ; or -(CH 2 ) n COOR<SP>1</SP> ; where M is an alkal: metal atom; R is a C 1  to C 6  alkyl group or an alkal :metal atom; R<SP>1</SP> is a C 1 -C 6  alkyl group or a hydrogen atom; R<SP>11</SP> is a C 1 -C 6  alkyl group; n is 0 or an integer from 1 to 4; m is an integer from 1 to 4; and X is a halogen atom; and (3) from 40 to 100% of water based on the weight of dry starch; and (b) reacting the mixture at 30-90‹ C. at an alkaline pH to obtain a non- fluid solid mass. The cationic reagent is an organic compound including a group capable of etherifying starch hydroxyl groups under alkaline conditions and a group which either carries or is capable of carrying a functional positive charge. Preferred cationic agents have the formula in which B is a group having the formula XCH 2 CH = CH- ; CH 2 (OH)CH(X)- ; CH 2 (X)CH(OH)- ; X is as defined above, p is 0 or 1; R 1  and R 2  are each a C 1  to C 22  alkyl group, a phenyl group, a C 1 -C 6  alkyl phenyl group or a halogenophenyl group; or when taken together with the nitrogen atom to which they are attached form a morpholyl, pyrrolidyl or piperidyl ring which is optionally substituted with one or more methyl or ethyl groups; R 3  is a hydrogen atom or a C 1  to C 6  alkyl group; and D is a halide, sulphate, phosphate, formate or a C 1  to C 4  alkyl carboxylate radical.
Patent GB-558288-A (GB)
Title: Improvements in or relating to cooking stoves
IPC: F24B5/06
Filed: 1942-05-26
Abstract: 558,288. Solid fuel cooking stoves. ALLIED IRONFOUNDERS, Ltd., SCOTT, C. L., and BLUMSON, E. J. May 26, 1942, No. 7128. [Class 126] A metal plate 10 or firebrick 12 arranged below the oven 1 of a cooking stove reflects heat from radiant fuel burring on a grate 5 on to the bottom 8 of the oven. The hot gases pass to the chimney through a flue 9 beneath a hot plate 15. The oven may be fitted with an internal baffle 14 as described in Specification 505,458. The reflecting plate may form a triangular box with the oven bottom 8 and a downward extension of the oven side 2. A firebrick may be interposed between this downward extension and the ash chamber. The stove may have fire doors 16 opening into a living room and the oven a door 17 opening into the kitchen.
Patent GB-502720-A (GB)
Title: A process for the manufacture of resin-like synthetic materials
IPC: C08G14/06
Filed: 1938-03-07
Abstract: 502,720. Plywood. DEUTSCHE HYDRIERWERKE AKT.-GES. March 7, 1938, No. 7129. Convention date, March 17, 1937. [Class 145 (ii)] [Also in Group IV] Wood parts are glued together by coating one surface with a solution prepared by partially reacting melamine with aqueous formaldehyde in the presence of sodium acetate, coating the other surface with a paste comprising water, resorcinol and starch paste and pressing the parts together for two days. Reference has been directed by the comptroller to Specification 455,008, [Group IV]