baber/WOPTO huggingface dataset:
Patent GB-1274716-A (GB)
Title: Method and apparatus for bonding layers of sheet material
Inventor: GOLDSTEIN MILTON
IPC: B29C65/50
Filed: 1969-06-17
Abstract: 1,274,716. Laminating. BONDIT CORP. 17 June, 1969, No. 30515/69. Headings B5K and B5N.  Layers 1a of sheet material are bonded by feeding therebetween a dry monofilament 8 of adhesive, heating to melt the adhesive and pressing the layers together. The layers can be bonded along their edges and be in either superposed or overlapping relationship. As shown, the layers 1a are passed between belts 13, 14, pressure and heat being supplied by electrodes 3, 4 which are coupled to a radio-frequency heater through terminals 3a, 4a. An adjusting mechanism for regulating the gap between the electrodes 3, 4 comprises two blocks 21, 29 fixedly screwed to a vertical side plate 34 (Fig. 3, not shown). The lower electrode 4 is fixedly screwed to the block 21. The screws 32, 33 each have a threaded portion which engages the electrode 3 and an unthreaded portion which engages the block 29, whereby the electrode 3 is vertically movable. Downward pressure is transmitted to the electrode 3 from a cylinder 36, which acts on a nut 39 pressing on a block 26 attached to the electrode.
Patent GB-1214734-A (GB)
Title: Quarternary ammonium compounds preparation thereof and biocidal compositions comprising same
IPC: A01N31/12
Filed: 1968-06-26
Abstract: 1,214,734. Quaternary ammonium compounds. STERLING DRUG Inc. 26 June, 1968 [5 July, 1967], No. 30599/68. Heading C2C. [Also in Division A5] The invention relates to quaternary ammonium compounds of a general formula in which R is alkyl having 1 to 22 carbon atoms, alkenyl having 3 to 22 carbon atoms or phenyl lower alkyl; R<SP>1</SP> is lower-alkyl, loweralkenyl or phenyl lower-alkyl; R<SP>11</SP> is higheralkyl having 8 to 22 carbon atoms or higheralkenyl having 8 to 22 carbon atoms; An is an anion, v is the valence of An; and n is an integer equal to said valence. Compounds claimed per se are N,N-dimethyl-N-betahydroxyphenethyl - N - myristyl - ammonium chloride and sulphate. The compounds may be prepared by reacting a tertiary amine of the formula NRR<SP>1</SP>R<SP>11</SP> with a strong acid usually approximately one equivalent of a salt forming acid H n An<SP>v</SP> such as hydrochloric or sulphuric acid and approximately one molecular equivalent of (epoxyethyl)-benzene preferably at a temperature between 50‹ and 100‹ C. in water or a lower-alkanol having one to three carbon atoms. Many examples are given.
Patent GB-251553-A (GB)
Title: Improved appliance for drilling holes in rock, coal and like faces
IPC: E21B7/02
Filed: 1925-12-04
Abstract: 251,553. Harris, B. Dec. 4, 1925. Drilling-machines.-A machine for drilling rock, coal, and like faces has a tubular support 15 secured in position by a pointed end 11 and a screwed end 13. A central slot 9 in the support carries front edge notches engaging trunnions on a feed nut 7. Within the latter works a screwed rod 1 with polygonal end 4 engaging a socket 5 carrying a drill 6.
Patent GB-803902-A (GB)
Title: Photoelectric switching device for mechanical squelch
IPC: H03G3/26
Filed: 1956-10-09
Abstract: 803,902. Photo-electric control. COLLINS RADIO CO. Oct. 9, 1956 [Feb. 28, 1956], No. 30778/56. Class 40 (3). [Also in Group XL (c)] A muting system for a radio receiver (see Group XL (c)) incorporates a photo-celloperated relay. Intermediate-frequency signal is applied to a pair of fixed coils 10, 11, mounted on the polepieces of a ferrite or like core 34, and time-delayed signal to a moving coil 3 positioned between the polepieces. Movement of the coil 3 causes rotation of mirror 12 whereby light from source 13 is deflected from the photocell 15; an associated D.C. amplifier then energizes a relay rendering the receiver operative. Specifications 722,664 and 772,372 are referred to.
Patent GB-415906-A (GB)
Title: Improvements in and relating to mechanism for producing pulsating rotary motion
IPC: F16H35/02
Filed: 1933-11-06
Abstract: 415,906. Obtaining oscillating rotary motion. PULLEY, E. G., 304, North McLaren Street, Marion, Illinois, U.S.A. Nov. 6, 1933, No. 30794. [Classes 80 (i) and 80 (iv).] Pulsating rotary movement is imparted to a shaft 4 from a shaft P which rotates in a substantially uniform manner by mechanism comprising a member 9 mounted concentrically on the shaft 4 and provided with co-axial internal gears 11, together with an annular weight 8 which encircles the member 9, is provided with co-axial external gears 12 meshing with the internal gears 11, and is rotated by a belt from a pulley 1 on the shaft P. A tension roller 15 may be provided to maintain the belt taut. Under operating conditions the gear 12 tends to climb up the internal gear 11, the weight member 8 thus moving to an eccentric position, as shown in broken lines in Fig. 3, and increasing the torque on the shaft 4. When the weight has reached its position of maximum displacement it again falls owing to the acceleration in motion of the shaft 4, the sequence of operations thus being repeated.
Patent GB-314324-A (GB)
Title: Improvements in variable speed gearing for mechanical stokers
IPC: F23K3/14
Filed: 1928-03-19
Abstract: 314,324. Thornton, A. A., (Parker, M. E.). March 19, 1928. Divided on 314,104, [Class 51 (i), Furnaces and kilns, Combustion apparatus of]. Variable-speed toothed gearing. - Consists of variable-speed gearing for an underfeed mechanical stoker employing a fuel-feed screw and includes a safety shear-pin connection in the drive. A central shaft 71 carrying a pinion 72 is driven by worm gearing from the transverse motor shaft 92. The final drive is through spurwheel 84, shear-pin 86, shaft 85, pinion 90, spurwheel 45, shaft 48, and coupling 41 connecting the shaft 48 with the coaxial feed-screw shaft 38. The variable part of the gearing comprises a cage 53 carrying three spur-wheels 78, 79, 81 which are in constant mesh with pinion 72 and one or other of which is adapted to be engaged, either directly in the case of the high speed 78, or indirectly through a connected pinion 80 or 82 for the other speeds, with the spur wheel 84, such engagement being effected by an angular movement of the. cage 53. Movement of the cage is effected by a three cornered indicating knob 56 and after movement the cage is locked in position by a bolt 62 operated by an external lever. The shaft 85 has a squared end 87 for hand operation. Specifications 314,104 and 314,323, [both in Class 51 (i), Furnaces and kilns, Combustion apparatus of], covering other features of the stoker are referred to.
Patent GB-763663-A (GB)
Title: Improvements in and relating to the suspension of folders
IPC: B42F15/00
Filed: 1954-10-26
Abstract: 763,663. Filing papers. LUNDGREN, A. G. E. Oct. 26, 1954, No. 30828/54. Class 146(1). Folders to be carried by suspension bars provided with longitudinal slots or openings for the insertion of a flap have the bending line between the flap and the side of the folder slightly bowshaped. As shown with a double bar a, b, c with slots d, folder sides e, f, which may be from different folders, have a bow-shaped bending line k between the sides and-the flaps g, which are passed through the slots d, the arrangement assisting the retention of the flap. Single bars may be used in place of the double bar. The bar a, b, c has each slot d enlarged at d<SP>3</SP> to assist insertion and the lower edge d<SP>1</SP> of the slot d lies inside the edge d<SP>2</SP> to lock the folder to the bar. The hook h at each end of the bar may be inturned at the recess i to assist movement along supporting rails.
Patent GB-1276560-A (GB)
Title: Improvements in dough dividers
Inventor: JACKSON RONALD
IPC: A21C5/00
Filed: 1970-06-25
Abstract: 1276560 Dough divider BAKER PERKINS Ltd 25 June 1970 30832/70 Heading B5A A dough divider comprises a hopper 1 with a rotary mechanical feeder 5 for delivering metered charges of dough into the hopper, and a photoelectric cell 8, for detecting the absence of dough in the hopper to operate the feeder 5. The cell 8 receives light from a source 9, and a time delay is incorporated into a circuit controlling the feeder motor, to ensure that the motor is only actuated after the reflected light remains below a predetermined value for a predetermined period.
Patent GB-1148184-A (GB)
Title: Improvements in or relating to ducts for enclosing electrical wiring in buildings
Inventor: JORGENSEN HENNING
IPC: H01R25/16
Filed: 1966-07-08
Abstract: 1,148,184. Conduits. BYGMA A/S., and H. JORGENSEN. 8 July, 1966, No. 30891/66. Heading H2C. A rectangular cable duct has no removable cover, and is provided in its front surface with irregularly spaced cut-outs for switches, sockets, &c. The rear face is attached to a wall. The duct may be used in place of room fittings and fixtures such as skirting boards, architraves &c. Adjacent sections of duct are joined by short duct sections of similar but smaller cross-section which fit tightly into the contiguous ends.
Patent GB-950619-A (GB)
Title: Purifying ethyl alcohol by distillation
Inventor: ESTER WILHELM
IPC: B01D3/00
Filed: 1960-09-07
Abstract: 950,619. Purifying ethanol by distillation. BERGWERKSGESELLSCHAFT HIBERNIA A.G. Sept 7, 1960, No. 30898/60. Addition to 900,627. Heading BIB. Crude ethanol is purified in a distillation system comprising a purifying column 2 and a rectifying column 12, the crude ethanol being introduced through pipe 1 into the top section of column 2 and a stream of hot water, withdrawn from the base of column 12, being fed into column 2 at the same level as the feed-pipe 1. Live steam is introduced into the base of column 2. Vapours comprising aldehydes, ether and other impurities pass overhead from column 2; and aqueous ethanol (7-8%) is withdrawn from the base. This aqueous ethanol is passed through pipe 9 to column 12 wherein it is rectified ; and pure 94% ethanol is withdrawn through pipe 18. An aqueous solution of sodium hydroxide may be added at about the middle of column 12 in order to maintain the water in the base of the column at a pH value of 8 to 12. The overhead condensate from column 12 is partly refluxed to this column, the remainder being passed through pipe 15 to column 2. The vapours from the top of column 2 pass to condenser 3 ; part of the condensate is refluxed to column 2, and the remainder is distilled in column 6. The top of column 6 is supplied, through pipe 17, with some of the hot water from the base of column 12. The overhead from column 6, which is condensed in condenser 7, contains 5% alcohol, 70% water and 25% ether, acetaldehyde and other impurities. The liquid drawn off from the bottom of column 6 is introduced into the top of column 2 at the same level as the crude alcohol. The process may be used for purifying fermentation alcohol, or ethanol produced by the catalytic hydration of ethylene.
Patent GB-870143-A (GB)
Title: 2:2'-difluoracedianthrone
IPC: C09B3/00
Filed: 1957-10-02
Abstract: a :b -Bis-(21-fluoro-91-anthronylidene-101) -ethane is made by heating glyoxal sulphate with 2-fluoranthrone-(9); the latter is obtained by ring-closing 41-fluorodiphenylmethane-2-carboxylic acid which is made by reducing 41-fluoro-2-benzoyl-benzoic acid with zinc dust and ammonia and caustic soda in the presence of copper sulphate.ALSO:The invention comprises 2 : 21-difluoracedianthrone, which may be made by treating bis-(21-fluoro-91-anthronylidene-101)-ethane or -ethylene with an agent capable of bringing about ring-closure. The dyestuff dyes and prints fibres of natural or regenerated cellulose in redbrown tints and may be used as a pigment.
Patent GB-405763-A (GB)
Title: Improvements in and relating to the production of formaldehyde
IPC: C07C45/33
Filed: 1932-11-02
Abstract: In the production of formaldehyde by passing methane and oxygen in presence of nitrogen oxides over platinum, tungsten, chromium, nickel, zinc, manganese, silicon, copper, silver, or oxides thereof as described in the parent Specification, the process is effected under pressure.  Examples describe the use of pressures of 500 mm. of water, 1.5, 11, and 90 atmospheres respectively, silica gel being used as catalyst.  The apparatus is electrically heated externally.
Patent GB-365594-A (GB)
Title: Method and machine for the manufacture of roll-rim and screw-necks on tubular glass vessels
IPC: C03B23/09
Filed: 1930-10-16
Abstract: 365,594. Forming roll - rims and screw-necks on glassware. ZAPPERT, E., 55, Chancery Lane, London.-(Dichter, J. ; 4, Miinz Strasse, Berlin.) Oct. 16, 1930, No. 30966. [Class 56.] In the mechanical production of roll-rims or screw-necks on tubular glass vessels in a machine of the kind in which rotating glass tubes are fed in succession and intermittently, the ends being preheated, melted and shaped by dies or the like, a plurality of separate stations are provided for neck-thickening and shaping so that a number of tubes are treated simultaneously, and progressively passed from station to station. The machine comprises pairs of overlapping roller discs 7, forming bearings for the tubes 1 at working stations 1a .. 1e, each provided with a burner and suitable forming tool. The discs 7 alternately rotate in opposite directions sufficiently to cause a complete revolution of the tubes, which are carried in the direction of the arrow 13 (Fig. 4) by carrier bars 11 driven by camoperated intermittently - acting mechanism. Counter-pressure rollers 9 may be provided. The tubes are preheated at stations 1a, 1b and constricted at 1c by the head 14 of a bell-crank lever 15 which is swung in. an arc to press against the side of the tube, forming an indentation 25. A mandrel 17 meanwhile supports the end of the tube which is then opened out at 1d by a mandrel 18, tilted into position by the device operating mandrel 17. The open end 26 is then allowed to contract under the action of the flame causing the belling 27, the final shaping taking place at 1e, after a further thickening, at an additional station if desired. The rim is shaped by a mandrel 19 and tools 21 caused by lever mechanism to converge upon the neck. The tube may be further heated and a forming tool introduced to form a pouring lip, or a screw-neck 29 may be produced in a further station, in the same manner as in 1e, the tube receiving, in addition to its alternate rotation, a to and fro axial movement, effected by setting the roller 9 at an angle. The tools are all similarly operated by means of cam mechanism disposed alongside the apparatus. A screwneck may be formed with or without previously forming a roll-rim. The glass tubes may be necked at both ends and then divided and bottomed.
Patent GB-653318-A (GB)
Title: Improvements in or relating to the manufacture of tubes
Inventor: OLIVER DONALD ARTHUR
IPC: C21D8/10
Filed: 1947-11-22
Abstract: An alloy suitable for forming tubes by hot-drawing comprises p  0.4 per cent carbon, 0,8 per cent manganese, 1.0 per cent silicon, 13.0 per cent nickel, 13.0 per cent chromium, 2.5 per cent tungsten, 2.0 per cent molybdenum, 3.0 per cent niobium, 10.0 per cent cobalt and the balance iron and unavoidable impurities.  The steel may be heated to a solution temperature above 1000 DEG C followed by a tempering treatment at 600-900 DEG C.  Specification 647,701 is referred to.
Patent GB-229637-A (GB)
Title: Portable roller writing desk
IPC: B42D19/00
Filed: 1924-12-29
Abstract: 229,637. McMurray, A. Feb. 22, 1924, [Convention date]. Void [Published under Sect. 91 of the .4ct]. Memorandum appliances.-Portable writing- desks comprise a rigid plane A, Fig. 2, with a slot B near each end for the passage over the plane A of a paper strip M carried by two detachable spools D underneath. The plane may be of aluminium carrying a writing support A'. The spools D are carried by brackets C riveted to the plane A, and a spring E co-operates with a notched flange F on one spool. In a modification, the plane comprises two halves hinged together at G, Fig. 5, and held in extended writing position by a clasp H, the two spools being carried by brackets close together beneath the left-hand half. In a further modification, Fig. 6, the desk comprises two halves with downwardlyturned square flanges all round and hinged together at the bottom at I so that, on folding, a box enclosing the spools D is formed, the halves being held in writing position by springs clasps J and the top of the side flanges and in folded position by a spring clasp K.
Patent GB-211216-A (GB)
Title: Improvements in or relating to heat insulated vessels
IPC: A47J41/00
Filed: 1922-11-14
Abstract: 211,216. Aladdin Industries, Ltd., (Johnson, V. S.). Nov. 14, 1922. Cold and heat retaining vessels.-A frangible container 10 surrounded by comminuted heat-insulating material 11 confined by a jacket 6 is removably mounted as a unit in a two-part outer casing or jacket 1, an air space 12 being left between the jacket 6 and the casing 1. The upper part 3 of the outer casing carries a bail handle 15, and rests upon a shoulder 7 of the jacket 6. It telescopes over the lower part 2 of the casing and is detachably connected thereto by screws and nuts 4, 5. The base 24 of the casing is provided with knob parts 23 over which fit recesses 22 in the base of the inner jacket 6 to prevent relative rotational movement. The jacket 6 and container 10 are united at the necks by a bond composed of heat-treated shellac. The jacket 6 is in parts having connecting flanges 18.
Patent GB-144205-A (GB)
Title: Improvements in and relating to sound recording and reproducing machines
IPC: G10K13/00
Filed: 1919-12-12
Abstract: 144,205. Bailey, W. C. Dec. 12, 1919. Tone-arms; sound-boxes. - In a gramophone- &c. having two sound-boxes, sensitive to base and. treble sounds respectively and connected to the same stylus, the tone-arm is longitudinally divided by a partition a<1>, Fig. 2. Sounds from the two sound-boxes travel by way of their respective compartments a<2>, a<3> to a common sound-chamber c, whence the bass tones are deflected along the arm c<3> by a deflector c<1> of thin sheet brass or other metal, while the treble tones are deflected along the arm c<4> by a thick deflector c<2>, preferably of hard wood. The goose-neck a<6> carrying the sound-box b<1> is supported by a spring arm d.
Patent GB-688994-A (GB)
Title: Cots or bedsteads
IPC: A47D7/02
Filed: 1950-12-22
Abstract: 688,994. Cots. HOSKINS & SEWELL, Ltd., and HOSKINS, H. R. Dec. 13, 1951 [Dec. 22, 1950], No. 31215/50. Class 52(ii) A cot is provided with at least one movable side comprising a pair of gate-like parts g, h having vertical pivotal axes e, f on the posts a, b of the head and foot ends of the cot respectively. The parts are held together by means of an inverted channel member i secured to the top rail of either of the parts g, h engaging over the top rail of the other part and in addition a plate k carried by a mattress frame member j is formed at its lower end as a trough to engage the lower rails of the gate-like parts. A locking arrangement may be provided comprising a barrel o secured to the plate k and having a spring-pressed plunger m adapted to enter a socket-like part of one of the lower rails. A handle q and, if desired, a pedal-operated lever r may be provided to release the locking arrangement.
Patent GB-160248-A (GB)
Title: Improvements in or relating to means for coupling agricultural implements to tractors
IPC: A01B63/114
Filed: 1919-12-15
Abstract: 160,248. Ferguson, H. Dec. 15, 1919. Ploughs; motor implements; adjusting parts of implements.-Means for closely connecting a plough or other implement to a tractor comprises superposed links arranged so that the line of draught is low and the implement 'is held down while at work by the weight of the tractor. The superposed links c, g are not parallel, and the lower one is preferably longer than the other. They may be loosely connected directly to the tractor a or to a movable intermediate piece b pivotally connected to the draw-bar a<1> and to an abutment a<2> by pins b<1>, b<2>. The link c is double and is pivoted on a shaft d in the plough frame f. The link g passes through a swivelling boss g' carried by brackets f<1> on the frame f. It is screwed at the lower end and is provided with a handle by which it may be turned to adjust its length for regulating the depth of work. The plough is raised or lowered by means of a lever m<1> fixed on a sleeve m provided with arms which carry a screw-threaded spindle l passing through a threaded part of a member k pivotally connected to the member b. An adjustable spring p assists in lifting the plough. The member b is slotted to allow the member k to rock slightly about a longitudinal axis. The plough is adjustable laterally by turning the shaft l by means of a handle l<1>. The lines of the links g, c intersect at a point x in advance of the axle of the rear wheels of the tractor and low down, the link c being in tension and the link g in compression while the plough is at work. When the implement meets an obstruction, the rear wheels of the tractor tend to be lifted so that they skid and relieve the stress.
Patent GB-1158144-A (GB)
Title: Electric Control System For A Winding Engine Electric Driving Motor
Inventor: WHITE ALAN
IPC: H02P5/00
Filed: 1965-07-22
Abstract: 1,158,144. Automatic speed control. ENGLISH ELECTRIC CO. Ltd. July 22, 1966 [July 22, 1965], No.31334/65. Heading G3R. In a closed loop system for regulating the speed of an electric motor, the speed reference signal 17A is modified to provide a signal 14A whose variation with respect to time is controlled to avoid high rates of change of motor torque in response to abrupt changes in the signal 17A, the modified signal 14A being supplied to the closed loop regulator for comparison with a speed feedback signal. The signal modifier comprises stages 23-26, the signal 17A being applied to transistor amplifier 28 which also receives the signal 14A as a negative feedback signal. Feedback circuits 29 comprise non-linear and linear resistors 30, 31, arranged so that the signal 23A is constant when a change in the resultant input signal to the amplifier 28 is above a given value, and is proportional to the square root of the amplitude of the resultant signal when the change falls below that value. The signal 23A is applied to transistor amplifier 33 which has a linear feedback circuit 34 and a non- linear negative feedback circuit 35 associated with bias circuit 39. The rate of increase of signal 24A is thus limited to the value determined by the current through bridge rectifier 43. Stage 25 limits signal 25A to potentials determined by tappings 46, 47, according to the sense of the signal 24A. Stage 26 acts as an integrator whereby, for step changes of the signal 17A of small magnitude, the motor is accelerated uniformly from zero followed by a uniform deceleration back to zero. An abrupt change of large value in the speed reference signal causes the motor to accelerate for a period at a uniform rate, followed by a period of constant acceleration, and then by one in which the motor decelerates at a uniform rate. In a modification, the amplifier 28 has only a linear negative feedback circuit, whilst amplifier 33 has additionally a feedback circuit arranged so that signal 24A varies as the square root of signal 23A when the latter falls below a predetermined value. The amplifier 33 also has a further feedback circuit which serves the same function as the limiting stage 25.