baber/WOPTO huggingface dataset:
Patent GB-1396572-A (GB)
Title: Apparatus for applying patches to envelope blanks
IPC: B31B19/00
Filed: 1972-08-16
Abstract: 1396572 Applying window patches to envelope blanks F L SMITHE MACHINE CO Inc 16 Aug 1972 [26 Aug 1971] 38237/72 Heading B8F In a machine for applying one or more window patches to envelope blanks, the blanks are fed from a feed roll 23 to a panel cutter roll 14 rotating in abutment with a back-up anvil 18 and having suction devices 24 for holding the blanks and knives on dies 20, 22 for cutting window portions in them; they are then fed via transfer roll 28 to the patch severing and applying apparatus 30. A web 36 of window patch material is drawn by pull rolls 38, 40 from roll 32, and fed to an adhesive applicator 42, which takes adhesive from a gum box 46 and applies it to selected portions of the web 36 via rolls 44, 50 working in conjunction with back up rolls 52, 54. The web 36 is then fed to a vacuum roll 58 where it is severed into appropriate lengths by a knife blade 72 mounted in a slotted portion 70 of the roll 58 and a knife blade 76 mounted on a roll 74 rotating adjacent the roll 58. The transfer roll 28 rotates at the same speed as the vacuum roll 58 and the envelope blank B on the former is transferred to the latter in superposed relationship with the patch P which is adhesively secured to it by the force of the suction and by pressure between the rolls 58 and 28. In the event of there being no envelope blank the patch P is removed from the vacuum roll 58 by a vacuum roll 114 having a patchdislodging device 118 and a glue scraper 122, and is deposited in a receiver 120. The envelope blank is then transferred via roll 78 to a second patch applying apparatus 80. This has a segmented roll 82 which applies adhesive from a gum box 86 to the envelope blank on a back-up roll 90. A vacuum bar 83 transfers the patch to a roll 112. A patch P 2  is severed from a web 110 by knives 106, 108 on a vacuum roll 102 which is similar to the vacuum roll 58 and is applied to the envelope blank by pressure between the roll 112 and the vacuum roll 102. The envelope blanks are then processed to form envelopes. The rolls 78, 58 and 114 may have a coating of self-lubricating polymeric material. The patch severing and applying apparatus 30 may easily be disconnected by severing the web 36 from the pull rolls 38, 40.
Patent GB-1039335-A (GB)
Title: Hydronalium alloy for die-casting use
IPC: C22C21/08
Filed: 1963-09-30
Abstract: An aluminium based alloy comprises:- .Si.0.5-3.0% .Fe.0.6-1.2% .Mn.0.6-1.2% .Mg.2-12% the balance, apart from impurities, being aluminium. The weight of Mg must exceed that of Si and the Fe and Mn are present in substantially equimolar amounts.  Impurities referred to are:- .Su.-0.1% .Cu.-0.2% .Ni.-0.1% .Zn.-0.1% .Ti.-0.1% .Pb.-0.1% .Cr.-0.2%
Patent GB-1398533-A (GB)
Title: Angular position encoding systems
IPC: G01D5/241
Filed: 1972-08-17
Abstract: 1398533 Capacitive position encoder NORTHERN ILLINOIS GAS CO 17 Aug 1972 [19 Nov 1971] 38466/72 Heading G4H An encoder for the angular position of a rotary shaft comprises a plurality of segments arranged round the shaft, means for providing excitation signals to each of said segments in sequence, a coupling member mounted for rotation to overlie a different one of said segments in each of said shaft positions and means connecting said coupling member to an otuput. As described, the coupling member is a vane V mounted on and insulated from shaft 21 and overlying segments A to J. Cylinder A to which vane V is connected is mounted partially inside cylinder 62 which is insulated and shielded from the segments and couples a signal electrostatically induced in vane V by an energized adjacent segment to output sensing circuit 60. The sensing pattern applied to the segments is as shown in Fig. 4. A high level signal is applied to a segment (say A) and a low level signal to the next but one segment on each side (C and I). This ensures that the high level signal is sharply defined; the output circuit regarding induced signals from the low level and the central level as the same. This pattern is shifted one segment at a time round the segments, the excitation signals being generated by logic circuitry supplied with the two levels and the outputs of a 0-9 counter. An output pulse occurs when the coupling vane V is above the segment energized with the high level signal. The segments are angularly arranged so that the gaps between them occur at positions corresponding to the numbers on the scale 23 attached to shaft 21. When vane V is equally over two segments (corresponding to pointer P being exactly on a number) an output pulse will be generated when each of the segments is energized.
Patent GB-1236165-A (GB)
Title: Fluoroacetylaminotrichloromethylmethyl-thiocarbamic acid esters and ureas
Inventor: FEST CHRISTA
IPC: C07C335/08
Filed: 1969-08-01
Abstract: 1,236,165. Fluoroacetylanrnotrichloromethyl-methylthio carbamic acid esters and ureas. FARBENFABRIKEN BAYER A.G. 1 Aug., 1969 [23 Aug., 1968], No. 38633/69. Heading C2C. [Also in Division A5] Novel compounds of formula wherein X is -O- or -NR<SP>1</SP>-, R<SP>1</SP> is H or alkyl and R is alkyl, haloalkyl, or aryl optionally substituted by one or more of Cl, Br, F, NO 2  or C 1-4  alkyl or R and R<SP>1</SP> together with the attached N form a heterocyclic group, are prepared by reaction of a compound of Formula (II) and a compound of formula HXR.
Patent GB-367500-A (GB)
Title: Improvements in or relating to oxygen jet cutting machines
IPC: B23K7/00
Filed: 1930-12-23
Abstract: 367,500. Dividing by fusion. HANCOCK, L. J., Benhilton Mount, All Saints' Road, Sutton, Surrey. Dec. 23, 1930, No. 38686. [Class 83 (iv).] In a blowpipe apparatus for cutting metals by the aid of a mechanically driven tracer, the tracer consists of a serrated roller mounted above and in axial alignment with the burner, driven through a rigid connection from a motor, and held manually in contact with a stationary templet of wood, aluminium, fibre, card or like soft material. In an apparatus as described in Specification 226,846, [Class 83 (iv), Metals, Working], the serrated roller 1 is secured to the lower shaft 3 of a pair of rigidly connected shafts 3, 4 driven through gearing by an electric, clockwork, air or other motor carried by a cradle 5. The shaft 4 is rotatable in a handle 6 which is rotatably mounted in a bracket 7 secured to the tracer arm so that the roller can be pressed by the operator against the templet. The roller may be replaced by others of different diameter so that the size of the templet may be virtually altered.
Patent GB-1174379-A (GB)
Title: A Vehicle Seat.
IPC: B60N2/16
Filed: 1968-08-13
Abstract: 1,174,379. Adjustable seats. BREMSHEY & CO. 13 Aug., 1968 [12 Sept., 1967], No. 38717/68. Addition to 1,126,894. Heading A4J. In a seat, in which the torsional rigidity of a rod member 5 ensures the equality of adjustment on both sides of a seat, the screw adjusting arrangement of the parent specification is replaced by a bow spring 10 and a friction clamp 21, 23 and 24, acting on one end only of rod member 5. On lowering lever 20, cam 21 releases the brake pressure and spring 10 may lift the overlying end of the seat to a new position of adjustment. In another form Figs. 1-3, (not shown), the cam 21 is replaced by a screw clamp.
Patent GB-824200-A (GB)
Title: Improvements in vinyl chloride polymer compositions and mixtures containing them
Inventor: JARRETT KENNETH BARRY
IPC: C08J3/00
Filed: 1956-12-20
Abstract: Particles of polyvinyl chloride, coated with an insoluble layer of condensation resin, are produced by adding to an aqueous polymer latex made by the emulsion polymerization of vinyl chloride, at least one water-soluble aldehyde, e.g. formaldehyde, and at least one watersoluble compound capable of forming thermoset resins therewith, e.g. urea, thiourea, aminotriazines such as melamine, phenols such as monohydroxybenzene, cresols, xylenols, resorcinol and naturally occurring phenols such as quebracho tannin, and reacting to form an insoluble resin on the surface of the particles in the latex.  In a modification of the process at least one water-soluble condensation product of an aldehyde and aldehyde reactable compound is introduced into the latex and reacted to form the insoluble coating.  Latices of copolymers of vinyl chloride with vinyl acetate or vinylidene chloride may be used in place of the polyvinyl chloride latex.  An improvement in certain physical properties, e.g. tensile strength and impact strength, of natural and synthetic polymers such as natural and synthetic rubbers and polyvinyl chloride results when these have incorporated in them the coated polymer particles described above. The incorporation is preferably carried out by latex blending.  Such compositions may have plasticizers, stabilizers, pigments and curing agents added to them, and have good chemical and heat resistance, and good electrical and external weathering properties.  The products of the invention are adaptable to conversion into shaped articles by the action of heat and pressure.
Patent GB-1514400-A (GB)
Title: Protection device for a power amplifying semiconductor element of an integrated circuit
IPC: H03K17/082
Filed: 1976-09-20
Abstract: 1514400 Protective circuits SGS-ATES COMPONENTI ELETTRONICI SpA 20 Sept 1976 [18 Sept 1975] 38913/76 Heading H3T A circuit for protecting a semiconductor element 11 of an integrated circuit against excessive voltage or current, and forming part of the integrated circuit, comprises a threshold portion 31, 35, which is activated by a signal from a portion including a resistor R2 which carries the current passing through the element 11, a unidirectional conductor 21 having a logarithmic voltage-current characteristic, an amplifier 22, a reference voltage device 33, and resistor means R3, R5, 32, the latter having a resistance which suddenly decreases when the voltage across it exceeds a limit, connected substantially as shown. Transistors 22 and 31 are normally non-conductive, but excessive current through or voltage across element 11 turns on 22, which turns on 31 and short-circuits the input 16 to the integrated circuit. The threshold at which transistor 31 turns on is determined by the current of a reference source 35, transistor 31 turning on when the collector current of 22 substantially reaches the reference level. The limiting current (I) through element 11 at which this happens is related to the voltage across 11 (V CE ) by a curve (52), Fig. 3 (not shown), having three portions, a portion (OA) for voltages below the breakdown voltage of Zener diode 33, an intermediate portion (AB) over which the network R3, R5, 32 has a constant resistance, and the portion (BC) above the saturation level of transistor 32 where the network R3, R5, 32 has a lower resistance. The integrated circuit may be protected additionally against excessive temperature by a device which cuts off the current of reference source 35 at a given maximum temperature. The circuit of the invention is a development of that disclosed in Specification No. 1,413,824.
Patent GB-1474530-A (GB)
Title: Device for determining the direction of propagation of a plane wave
IPC: G01S3/805
Filed: 1974-09-06
Abstract: 1474530 Direction-finding COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 6 Sept 1974 [11 Sept 1973] 39023/74 Heading G1G A direction-finding system comprises a prime number P of points in a rectilinear array 1, N of the points being occupied by wave receivers 3 (N#P) whose outputs are binary-encoded at 4 then applied to beam-forming channels 14, 14', 14" .... Each channel includes a unit 5, 5', 5"..., which samples the signals from the array points in a given sequence, and at least one loop made up of an adder 8, 8', 8" ... and an m-1 stage shift register 7, 7', 7" ... where m is different for each channel. The adder receives the samples from unit 5 &c. on one input and the register output on a second input. A clock 13 of period T controls the sampling and the shifting of samples through the registers. The sampling sequence in unit 5, or 51, &c., depends on whether m<P, m>P, or m =multiple of P: Formulae are given for determining the sequence. Each channel has the effect of summing samples taken from successive points in array 1 with a sampling interval mT, e.g. in channel 14 samples from the first, second, third &c. points are effectively taken in the first, fourth, seventh &c. clock periods and summed. The sum signal, i.e. the beam output signal, is taken from the adder output or from some other point in the loop. Encoder 4 may be replaced by respective encoders preceding each of adders 8, 8', 8" ...., and to increase the sampling rate each unit 5, 5', 5" .. may be replaced by two or more parallel units each followed by a respective loop.
Patent GB-837151-A (GB)
Title: Improvements in or relating to methods and í¡í¡ manufacture of expanded materia?
Inventor: SHUFFMAN OSCAR
IPC: B29C44/34
Filed: 1957-12-16
Abstract: 837,151. Mixing materials in flow. HUDSON FOAM PLASTICS CORPORATION. Dec. 16, 1957, No. 39094/57. Class 86 Liquid ingredients for making foam plastic sheets are injected into a container sequentially in the direction of flow towards an outlet and, while in the container are mixed by a rotating assembly of blades. The chamber 13 encloses a vertical shaft, carrying the beater assembly, driven through a shaft 15 by a motor 32. A polyester resin material is introduced through a wide bore tube 26 and, at the same or a slightly lower level, a di-isocyanate is fed in by a pump 16 through a nozzle 23. At a still lower level a liquid catalyst is injected by a quadruple pump 18 through further nozzles 23 and the mixture, while still in the liquid state, is ejected through an orifice 34. The container 13 is moved laterally backwards and forwards over a travelling conveyer belt so that a continuous sheet of foam material is formed. For cleaning the interior of the mixing chamber the bolts 29 holding the cover 28 are loosened and the spindle and its blades are raised by a rack actuated by a handle 33. In order to feed in the materials in the direction of rotation of the stirrer the nozzles 23 are directed at an angle to the radius of the container.
Patent GB-1447062-A (GB)
Title: Process for the preparation of n-hexakis-hydroxymethyl- melamine and ethers derived therefrom
IPC: C08K5/3492
Filed: 1973-08-20
Abstract: 1447062 Hydroxymethyl-melamines and ethers thereof PRODUITS CHIMIQUES UGINE KUHLMANN 20 Aug 1973 [18 Aug 1972] 39272/73 Heading C2C Compounds of Formula I: in which R represents a hydrogen atom or a linear or branched alkyl group, are obtained by mixing melamine and paraformaldehyde in the proportion of at least 6 moles CH 2 O to one mole of melamine, in the presence of an alkaline catalyst (e.g. 0À10-0À05 mole per mole melamine) but in the absence of any alcohol, the temperature of the exothermic reaction of the mixture being maintained below 150‹ C. (e.g. 90-110‹ C.) and, if R is alkyl, the hexakismethylol derivative obtained being etherified by reaction with an alcohol in an acid medium and with subsequent neutralization to a pH from 6 to 8. Examples describe the preparation of N- hexakis - (hydroxymethyl) - melamine and the hexakis (C 1-4 ) alkyl ethers thereof.
Patent GB-964397-A (GB)
Title: Improvements in bag opening and filling machine
IPC: B65B39/06
Filed: 1962-10-17
Abstract: 964,397. Packaging machines. TELE-SONIC PACKAGING CORPORATION. Oct. 17, 1962 [Oct. 19, 1961], No. 39327/62. Heading B8C. A machine for opening and filling bags, comprising a bag-supporting rack 16, an air duct 10 positioned so as to direct a flow of air downwardly against the open top of the foremost bag 12, and a valve mounted within the air duct 10, is characterized by a guide funnel 21 positioned above and in front of the foremost unopened bag and composed of two complementary parts 21A, 21B pivotally supported for telescoping motion from a funnel form shown in Fig. 1 to a bag-guide form shown in Fig, 3. and is further characterized by a trip lever having two operative positions and being convected to the funnel 21 and the valve so as simultaneously to move the parts 21A, 21B to the bag-guide form and to open the valve, and simultaneously to close the valve and to move the parts 21A, 21B to the funnel form with the lower end of the funnel engaging the open end of the bag 12. The trip lever comprises a plate 23 biased towards its horizontal position below the funnel 21. The plate 23 is mounted on a shaft 24 and connects with the valve of the butterfly type by means of actuating rods 31 journalled to rocker plates 27. The parts 21A, 21B are mounted on rocker arms 23A, 23B respectively, which are connected to the rods 31 in such a way that when the rods 31 move down, the roller arms rotate in the direction shown in Fig. 3. When the plate 23 is rotated downwardly the rods 31 move downwardly and rearwardly, thus opening the valve so that a blast of air opens the bag 12 and moves the funnel parts 21A, 21B into the bag-guide form. On releasing the plate 23 the rolls 31 rise, the valve closes and the funnel parts move downwardly into the position where they support the mouth of the bag. When the filled bag is removed the plate 23 is depressed to start the operation again. The position and size of the funnel are adjustable for accommodating various sizes of bags.
Patent GB-1526744-A (GB)
Title: Column-sequential dot matrix printer
IPC: B41J2/13
Filed: 1975-09-26
Abstract: In an electronic control system for controlling the printing speed of a fast dot-matrix printer writing column by column, which uses a data input signal coded in a permutation code, a storage register (59) with a storage capacity of at least three codewords for storing the input data and a point clock oscillator (60) are provided. The control system exhibits a print clock generator (62) with a plurality of counting-down circuits, connected to the oscillator (60), for generating a signal for normal print speed and a signal for a fast print speed and the print clock generator (62) can also generate a variable clock signal in which the initial column intervals are longer than in the signal for normal print speed and the subsequent column intervals are preferably shorter than in the signal for normal print speed. A print clock control unit (61) selects one of these print speed signals for controlling the print speed in each print cycle, in dependence on the printer state in the preceding cycle, the variable signal is used whenever the write head has stopped during a particular time interval. <IMAGE>
Patent GB-1531624-A (GB)
Title: Business forms unit set assemblies
IPC: B41L1/24
Filed: 1976-09-24
Abstract: 1531624 Form set MOORE BUSINESS FORMS Ltd 24 Sept 1976 [17 Oct 1975 5 April 1976] 39695/76 Heading B6A A form set consists of a base sheet 14, a top cover 11 which has a flap 17 bonded to the base sheet and carries adhesive 16 which protrudes through a hole 18 in the base sheet, one or more sheets 13 with larger holes 15 through which the adhesive extends without gripping and an upper sheet 12 secured by the adhesive. Removal of the sheet 12 permits one-by-one stripping of the sheets 13. Preferably the top cover 11 has a line of perforations across it, so that it can be severed to reveal the sheet 12.
Patent GB-1287771-A (GB)
Title: Rotary internal combustion engine
Inventor: HOARE KENNETH ROBERT
IPC: F02B75/02
Filed: 1969-08-12
Abstract: 1287771 Radial cylinder engine K R HOARE 30 Oct 1970 [12 Aug 1969] 40317/69 Heading F1B Rotary internal combustion engine comprises a stationary housing and rotatable within the housing a cylinder block having an odd number of radial bores, within each of which a piston reciprocates, the pistons being connected to the crank-pin of a shaft which rotates "n" times faster than the cylinder block where "n" is the number of cylinder bores. Engine 1 has a stationary cylinder head 2 within which rotates a cylinder block 3. Seven cylinder bores 4-10 are equiangularly spaced around the block, bore 4 contains a piston mounted on a master connecting rod 11 and the other bores each contain pistons mounted on connecting rods articulated to the master rod. A single throw crank-shaft carries the master-rod and is geared to the cylinder block to rotate in the opposite direction and at seven times the speed of the cylinder block. Four pairs of inlet and exhaust ports 14, 15 are formed in the cylinder head and during each complete revolution of the cylinder block, each piston completes four 4-stroke cycles. Spark- or compression-ignition may be employed. The cylinder block is sealed to the cylinder head by a ring set in a groove concentric with the cylinder bore. There may be any odd number of cylinders and in general the number of complete cycles per revolution is given by the expression n + 1, where "n" is the number of cylinders, 2 and is also the gear ratio between the cylinder block and crank-shaft.
Patent GB-403536-A (GB)
Abstract: 403,536. Trapping and removing air in pumps. FRIEDMANN, L., and FRIEDMANN, M., (trading as FRIEDMANN, A.), 6, Am Tabor, Vienna. Feb. 25, 1933, No. 5799. Convention date, March 5, 1932. [Class 102 (i).] In a lubricating or other pump the suction valve in the open position is at such a distance from its seating that it will allow air to escape during the forcing stroke but is closed by liquid, thus preventing the discharge of air to the delivery pipe. Fig. 2 shows a ball valve 3, which, in the open position, rests on a pin 10. The clearance between the ball and its channel 9 is sufficient to permit the escape of air, while the valve is closed by liquid. In a modification, Fig. 3, the valve in the open position rests on a port 11, and ports 12 are formed in the valve casing 9 below the seating 5.
Patent GB-1115802-A (GB)
Title: Improvements in or relating to an alarm system
IPC: G08B13/183
Filed: 1965-09-22
Abstract: 1,115,802. Automatic volume control. GENERAL ELECTRIC CO. Ltd., J. R. G. WOODS, and D. J. WRIGHT. 22 Sept., 1966 [22 Sept., 1965], No. 40508/65. Heading H4R. [Also in Division G4] A pair of transistors 3, 4 feeding a tuned circuit are arranged with a variable common impedance to alter the gain of the stage. A resistor 5 provides maximum negative feedback and is shunted by diodes 7 and Zener diode 8. A strong input signal to the amplifier causes demodulator stage 18, 19 to feed a positive signal to transistor 15 to maintain it in conduction, with a low collectoremitter voltage so that diodes 7 are held in a high impedance state and the shunt circuit has little effect on resistor 5. As the input from stage 18, 19 falls, transistor 15 becomes less conducting, the emitter-collector voltage rises to cause diodes 7 to conduct more and fall in impedance, shunting resistor 5 and raising the gain of stage 3, 4.