baber/WOPTO huggingface dataset:
Patent GB-151900-A (GB)
Title: A new self-propelled plough
IPC: A01B3/54
Filed: 1920-03-15
Abstract: 151,900. Lisles, W., and Lisles, R. March 15, 1920. Ploughs.-In a motor plough in which the plough frame is beneath the main frame, the front part of the plough frame is provided with one or more adjustable land wheels and is attached to the main frame in such a way that its position relative to the land is not affected by the rising, falling, or tilting of the main frame. The main frame 1, Fig. 1, is supported on driving-wheels 2 and steering-wheels 3, both the wheels on one side normally running in the furrow. A vertical draw-bar pin 10 is adjustably mounted on two cross-bar 9. The plough frame 12 is connected to the pin 10 by a jointed and swivelling draw-bar 16, 16a, which slides up and down on the pin 10 under the control of a spring 13, rollers 17, 18 being provided to reduce the friction. Two draw-bar parts 16 and two pins 10 may be provided. The cross-bars 9 may be adjustable and the pin 10 rigidly fixed to them. One or more land wheels 20 are adjustably connected to the front of the plough frame to regulate the depth of work. They are adjusted by means of screws or racks, or by moving the brackets 27 'n which their forks 24 are mounted. The rear part of the frame 12 may be raised by means of a handlever 28 connected by a link 29 and a crank 30 to a shaft 31 carrying a drum or drums 32 to which are attached lifting-chains 33. The drums 32 are weighted to counterbalance the frame 12. The plough frame is locked against lateral movement by means of a pivoted bar 37, Fig. 6, carrying rollers 39 adapted to engage plates 40 on the main frame 1. The bar 37 is moved by means of a hand-lever 35 and links 36; and the plates 40 are adjustable for regulating the width of work.
Patent GB-846287-A (GB)
Title: Methods for imparting to cellulosic fabric a drip-dry crease-resistant finish
Inventor: MCCANCE HENRY BRISTOW
IPC: D06M15/423
Filed: 1957-03-11
Abstract: An aqueous composition for treating cellulosic textiles comprises a polyol, a polyester having structural units linked by ester groups and having free acid groups, and a non-resin forming compound which will, upon subsequent heating cross link with the polyol and the cellulose.  The latter compound may be formaldehyde, glyoxal, acetals or hemiacetals, dimethylol ethylene urea or tetramethylol acetylene diurea.  The polyol may be polyvinyl alcohol and the polyester may be formed from glycols or glycerol and sebacic, maleic, phthalic or succinic acid.  A polyester from succinic acid and triethylene glycol is specified. The composition may have a pH of less than 2,4.  The polyester functions as an acid catalyst and as a plasticizer for the polyol.ALSO:Cellulosic fabrics are treated with an aqueous composition containing a film forming polyol, a cross linking agent, and a water-soluble polyester which comprises structural units connected by ester linkages and which contains free acidic groups. The cross linking agent is a compound which will react with the polyol and with the cellulose and will not homopolymerise. Compounds specified are formaldehyde, dimethylol ethylene urea, glyoxal, acetals formed by reaction of a dialdehyde with a monohydric alcohol or of a monoaldehyde and a polyol and hemiacetals, and tetramethylol acetylene diurea.  The polyol may be polyvinyl alcohol and the polyester may be obtained from glycols or glycerol and succinic, sebacic, maleic, or phthalic acids.  The solution may have a pH not greater than 2,4.  The fabrics may be woven, knitted or felted, and after impregnation are squeezed, dried and heated at about 120 DEG C. In examples, (1) a spun rayon fabric is treated with a solution containing polyvinyl alcohol, dimethylol ethylene urea, tetra methylol acetylene diurea and a triethylene glycol-succinic acid polyester, and is squeezed, dried and heated at 130 DEG C.; (2) a cotton poplin fabric is treated with a solution containing polyvinyl alcohol, triethylene glycosuccinic acid polyester, tetramethylol acetylene diurea and formaldehyde and is squeezed, dried and heated at 130 DEG C.  The materials treated may have a crease-resistant or stiff finish, reduced water absorption, reduced shrinkability and improved abrasion resistance.
Patent GB-1371468-A (GB)
Title: Amplifier circuit
IPC: H03K19/096
Filed: 1973-02-19
Abstract: 1371468 Transistor switching circuits INTERNATIONAL BUSINESS MACHINES CORP 19 Feb 1973 [3 April 1972] 7951/73 Heading H3T A switching circuit comprises: a capacitor C S  connected to one electrode of a switch 10; a load capacitor C 0  connected to a second electrode of the switch 10; means 12, 16, 20 operable during a reset period to charge capacitor C S  and turn off the switch; and means 14 for applying an input to a control electrode 13 of the switch during a set period to turn it on, connecting the capacitor C S  to the capacitor C 0 , the capacitance of C S  being greater than that of C 0 . At the start of a reset period, a clock signal #-1 turns on F.E.T. 12 to discharge capacitor C S , and F.E.T. 16 to connect supply 17 to the gate 13 of F.E.T. switch 10. At the same time a clock signal #-2 turns on F.E.T. 20 to charge capacitive load C 0  from supply 21. At a subsequent instant #-1 turns off F.E.T.s 12, 16 leaving the gate of F.E.T. switch 10 isolated but still at the potential of supply 17. Capacitor C S  now charges from this potential until F.E.T. 10 cuts off. Clock #-2 next cuts off F.E.T. 20 leaving both capacitors charged but isolated from any supply. Application of an input pulse at 14 will now turn on F.E.T. 10 again and the potentials across the two capacitors will become equal, producing an amplified output pulse. Bipolar transistors may be substituted for the F.E.T.s.
Patent GB-439147-A (GB)
Title: Improvements in and relating to self-inductance coils
IPC: H01F21/02
Filed: 1935-03-14
Abstract: 439,147. Inductances. IDEAL WERKE AKT. - GES. FUR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohensch÷nhausen, Berlin. March 14, 1935, No. 7968. Convention date, April 18, 1934. [Class 37] In an inductance coil in which the value of the inductance is adjusted by varying the distance between the turns or groups of turns 3 mounted on a common rigid support 2, one or more devices 5 are provided which are adjustable relatively to the support and engage each turn or group of turns separately. In the form shown, the device 5 comprises a rotatable member with inclined grooves 6 engaging the turns 3, the grooves being at different distances from one another so that when the turns are displaced they remain at equal distances from one another. The coil support 2, or a member 7 secured thereto, may also be provided with grooves 10 for the reception of the turns. The base 1 of the coil support may be combined with a trimming condenser 8 which is adjusted by a screw 9.
Patent GB-553560-A (GB)
Title: Improvements in the production of plastics having a paper base
IPC: D21J1/16
Filed: 1941-08-25
Abstract: 553,560. Reinforced, laminated paper. WATSON, J. H., and ANDERSON, H. E. Aug. 25, 1941, No. 7972. [Class 96] Three to five per cent. of sisal fibres, shortened to about ¢ to ¥ inch is incorporated between plies of paper or pulp web, before or after impregnation of the paper &c. with thermosetting resin constituents, e.g. 15 to 42 per cent. of a urea-formaldehyde resin, but before setting or curing, or moulding or pressing, the final product being 0.005 to 0.009 inch thick.
Patent GB-716170-A (GB)
Title: Improved variable speed power transmission
IPC: F16H47/08
Filed: 1951-12-04
Abstract: 716,170. Hydro - mechanical variable - speed gearing; friction clutches. GENERAL MOTORS CORPORATION. Dec. 4, 1951 [Dec. 8, 1950], No. 7991/54. Divided out of 716,134. Drawings to Specification. Class 80 (2) The subject-matter of the Specification is contained in Specification 716,134, but the claims are directed to the construction of the gearing.
Patent GB-1413043-A (GB)
Title: Transducer installation
IPC: G01P5/24
Filed: 1973-02-19
Abstract: 1413043 Transducer assembly WESTINGHOUSE ELECTRIC CORP 19 Feb 1973 [1 March 1972] 8051/73 Heading H4J A transducer device, e.g. for use in measuring the liquid flow rate along a pipe, comprises a removable transducer assembly 26 and holder 22 (Fig. 2), the arrangement being such that the transducer assembly is held against a window 24 in the holder 22 by means of a spring 72 and sleeve 70, the tension of the spring being adjustable by means of a screw 74. 0-ring seals 60, 61 are provided. In a similar arrangement (Fig. 4, not shown) the holder (87) is mounted perpendicular to the pipe axis and the transducer assembly 26 is mounted at an angle to the spring (100). Further the window (89) is formed separately from the holder. Transducer assembly (Fig. 2).-A piezoelectric element, e.g. of barium titanate or lead metaniobate, has its front surface 31 encapsulated in a elastomeric material 42 such as silicone rubber for abutting the window 22 and its rear surface 32 is separated from a pressure plate 39, e.g. of metal or a plastics material, by a sound absorber 39 comprised for example of a clay bead microsphere-acrylic material and tungsten.
Patent GB-292968-A (GB)
IPC: D06F69/04
Filed: 1927-10-25
Abstract: 292,968. Hammer, A., (Assignee of Hammer & Co., A.). June 28, 1927, [Convention date]. Divided on and addition to 279,519, under which a. Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 26, 1927]. Ironing - machines with hand-operated irons; ironing-machines with relatively sliding flat surfaces. -The ironing-machine described in Specification 279,519 is provided with a power-operated mechanism for raising and lowering the iron. The motor 10 which rotates the iron is supported by the carriage 6, from which the iron is suspended by four separate chains 5<a>. The iron proper comprises a circular plate 3 rotated by a shaft 3<b> driven by the motor 10 and rotating in a bearing in a stationary weighted bell-shaped cover 4 which extends over the flange 3<a> of the plate 3. A gas burner 11 is located in the space between the plate and the cover, an asbestos layer 4b being provided. A hand-wheel 5 is secured to the cover so that the iron can be reciprocated by hand along the work support 2, the carriage traversing a rod 7 which is fixed at its ends to counterweighted levers 7a, one of which is connected by a link 7b to a crank disc 13. A separate motor 16 rotates the crank disc, through a clutch controlled by the operator through a treadle 8, to raise and lower the iron. The pressure exerted by the iron is regulated by rotating the hand-wheel 5 to cause the chains to interlace. A pointed auxiliary iron 40, independently heated, is adjustably secured to the cover 4.
Patent GB-572417-A (GB)
Title: Improvements in helicopters
IPC: B64C27/82
Filed: 1943-05-24
Abstract: 572,417. Helicopters. WEIR, Ltd., G. & J., and PULLIN, C. G. May 24, 1943, No. 8186. [Class 4] A helicopter of the kind having a single tiltable rotor with articulated blades is provided with an auxiliary rotor, for compensating the torque reaction, arranged within a normally transverse duct at the rear of the aircraft. The duct may have adjustable parts to vary the direction of the reaction on the helicopter, or the whole duct may be rotatable about a vertical axis independently of or with the rotor. In the latter case, the duct and rotor may be set fore and art of the machine to assist propulsion during high-speed horizontal flight, and steering effected by adjustment of the duct about its vertical axis. In one form, the auxiliary rotor comprises a hub 42, with blades 43 variable and reversible in pitch, which is driven from the main engine through shafts 37, 40 and gear-boxes 39, 41. The rotor is enclosed by a duct 44, 45, in two parts of which the rear part 45 is adjustable about a vertical axis by worm gear 50, 51 and sprocketwheel 53 controllable through cables 54 from the pilot's cockpit. The blades 43 have eccentric pins 56 engaged by a groove in a striker 57 movable by a rack 59 and worm 60 controlled through a sprocket 61 and cables 62 from the rudder bar. Branch cables 64 are connected to a rudder 24. The pitch change gear is enclosed by a fairing 47a having radiating blades 48 secured to the fixed part 44 of the duct. A fairing 47b encloses the gear-box 41. In another form, the blades 43 are fixed to the hub and the blades 48 are adjustable to control the flow through the duct by mechanism similar to that shown for adjusting the blades 43 in Figs. 2 and 3. In these two forms the part 45 of the duct is mounted on a spherical seating and provision may be made for tilting the part 45 in a vertical plane. In another form, the whole of the duct is adjustable about a vertical axis, together with the motor, the speed of which is controlled by a change-speed gear in the gear-box 39 under the control of the pilot.
Patent GB-874057-A (GB)
Title: Improvements in or relating to spiral staircases
Inventor: JOHNSON ROY ASHBRIDGE
IPC: E04F11/032
Filed: 1959-03-10
Abstract: 874,057. Spiral stair balusters. BROOKFIELD ART METALS Ltd. March 7, 1960 [March 10, 1959], No. 8212/59. Class 45. [Also in Group X] A spiral staircase comprises, a series of substantially triangular tread plates 2, Fig. 4, each plate having a sleeve 4 adjacent its vertex end for mounting the plates on a newel column 14, Fig. 2, the projecting outer end of each plate being supported by a vertical member 8 and an inclined strut 9 both secured between adjacent upper and lower partly superposed plates 2, and balusters 12 secured to the tread plates 2 to support a handrail 13. The struts 9 extend between the rear edges of adjacent pairs of plates 2, and together with the balusters 12 are secured by means of bolts 11 passing through the members 8 which are of tubular form and through superposed holes 5, 5a in the rear and front outer corners respectively of the plates 2. A stiffening angle or channel 7 is welded along at least the front of the undersurface of each plate 2.
Patent GB-749516-A (GB)
Title: Improvements in or relating to clasps or fastenings for ladies' handbags
IPC: A45C13/10
Filed: 1953-03-26
Abstract: 749,516. Spring catches. KAUFMANN, I. March 25, 1954 [March 26, 1953], No. 8338/53. Class 44. In a handbag having a mouth formed from opposed and pivoted members a clasp comprises a clasp arm mounted on one pivoted member a and having a rounded nose 7 engaging a projection mounted on the other pivoted member b and formed from a U-shaped strip 4 the ends 1 and 2 of which project through apertures in the other pivoted member b and through which ends passes a pin 3. A sleeve may be formed around the pin 3. To release the catch, which engages automatically, a plate 5 pivoted on the pin 3 and integral with the sleeve is lifted upwards by means of a finger-piece which hangs downwardly under gravity.
Patent GB-1358676-A (GB)
Title: Hobs for generating gears
IPC: B23F21/16
Filed: 1973-02-20
Abstract: 1358676 Hobs ILLINOIS TOOL WORKS Inc 20 Feb 1973 [22 Feb 1972] 8385/73 Heading B3K A hob comprises a roughing section 12 and a finishing section 14, and the teeth are arranged on a single helix, and are of full form on the finishing section, and of partial form on the roughing section, the number of flutes 24 per convolution on the roughing section, being greater than the number of flutes 26, on the finishing section, sections 12 and 14 being separable from one another. The sections may be of different materials, and are joined by steps 16, 18. In a modification, the sections are joined by end surfaces in the form of a single turn of a helix with a step joining the start and finish of the turn.
Patent GB-266157-A (GB)
Title: Improvements in storage battery box
IPC: H01M50/171
Filed: 1926-03-29
Abstract: 266,157. Doughty, L. A. March 29, 1926. Cells.-Storage battery boxes with straight walls 10, Fig. 3, having an inner peripheral ledge 17 are provided with a cover 12 encircled by the ledge 17 with its marginal portion 18 abutting against and flush with the ledge 17 instead of resting thereon, a sealing compound 23 being moulded over the joint. The portion 18 of the cover may comprise a flange projecting towards the ledge and may be firmly locked against the ledge 17 by grooves 20, 22 in the ledge and flange into which the compound 23 is moulded to form a leak-proof joint. Anchoring bridges may be embedded in the compound 23 at intervals along the flange 18, the bridges having part 26, Fig. 4, seating in the grooves. The box may be of wood, rubber &c., and may be divided into cell compartments by transverse partitions 11 with upper faces flush with the ledge 17 and having grooves 21, each compartment being closed by a cover which is provided with terminals and filling or inspection openings and which is sealed to the ledge 17 as above and to the partitions in similar manner.
Patent GB-1166025-A (GB)
Title: Improvements in and relating to Vibration Generators
IPC: B06B1/16
Filed: 1968-02-21
Abstract: 1,166,025. Vibrators; disc brakes. LOSENHAUSEN MASCHINENBAU A.G. 21 Feb., 1968 [11 March, 1967], No. 8480/68. Headings F2E and F2X. A vibrator for use with a soil compactor or vibratory screen has eccentric masses 25, 26, 28, 30 keyed to a shaft 14 and eccentric masses 46, 42, 44, 48 keyed to a shaft 16. The mass 25 is constructed as a pinion 24 which meshes with a driving pinion (32) to rotate the shaft 14. The pinion 24 also meshes with a pinion 34 which is axially slidable and freely rotatable on shaft 16. Dogs 38, 40 relatively offset by 180 degrees project from opposite sides of the pinion 34 to engage, one at a time, respectively the masses 42, 44. An indexing mechanism 50 moves the pinion 34 axially, which movement due to the relative angular offset of the dogs 38, 40 causes a change in the relative angular position of the weights on shaft 16 with respect to the weights on shaft 14 and so changes the direction of vibration. A disc brake on the end of shaft 16 is actuated simultaneously and momentarily with the indexing mechanism to retard the shaft 16 to ensure that it assumes its new position with the respective dog engaging its respective weight. The disc brake, Fig. 9, has a disc 52 fast on the shaft 16 which also journals an operating disc 56 having in recesses 82 spring-loaded balls 86 engaged in inclined recesses of a disc 54 having a friction lining 70 and carried by a rubber bushing 74. The operating disc 56 has an extension 90 which is rotated angularly by a roller 94 on a lever 92 that is reciprocated simultaneously with the operation of the indexing mechanism. Rotation of the disc 56 causes the balls 86 to ride up the inclined recesses and displace the friction disc 54 axially to engage the disc 52 to retard it. Rubber bushing 74 returns the disc 54 after its actuation. A pair of vibrators are mounted on a sole plate (62), Fig. 6 (not shown), of a soil compactor which has a driving motor 68 mounted on a plate 64 carried by springs 66. Alteration of the direction of vibration of the vibrators alters the direction of movement of the compactor.
Patent GB-566522-A (GB)
Title: Improved guillotine machine for cutting paper, leather, fabrics and like sheet material
IPC: D06H7/02
Filed: 1943-05-27
Abstract: 566,522. Cutting-machines for paper &c. SMITH & SON, Ltd., W. H., and FLAWN, P. A. May 27, 1943, No. 8520. [Class 31 (i)] A guillotine machine for cutting paper, leather, &c. is constructed with a fixed shear plate 31 and a reciprocating knife 30 mounted under spring pressure in a carrier 33 which is actuated by reciprocating rods 38 connected to levers 34 to which the ends of the carrier 33 are connected. The rods 38 are actuated by separate cams or eccentrics 36 on a shaft 37 driven by belt gearing from a motor 15, which also drives means for advancing a web 10 of material intermittently. The knife 30 is given a bodily movement to and from the plate 31, together with a rocking movement about virtual axes at opposite ends of the knife alternately. The web is advanced over plate 31 with the knife 30 in the position shown in Fig. 3a, and then the knife pivots about the left-hand pivot and then commences a descending movement to effect the cut by moving through the position shown in Fig. 3b to a lower position in which the cut is completed. The knife moves about the right-hand pivot before completing the cut. On the upward stroke the movements are reversed and the knife finally reaches the position of Fig. 3a. The web is advanced by a pin-wheel feed operated by a rack 16 and a free-wheel ratchet drive, the rack being reciprocated by adjustable crank mechanism. The knife 30 is pressed by springs 40 against the plate 31 during the cutting operation, the plate being cut back at 41 to enable the leading end of the knife to clear the shear-plate. The pinwheel feed may be replaced by a friction-roller feed, and the intermittent operating means may be a Geneva stop-motion.
Patent GB-1149413-A (GB)
Title: Improved electric circuit breaker comprising vacuum switches
Inventor: REECE MICHAEL PETER
IPC: H01H33/16
Filed: 1967-02-22
Abstract: 1,149,413. Vacuum switches; arcing preventing. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 15 Jan., 1968 [22 Feb., 1967], No. 8551/67. Heading H1N. A high voltage circuit breaker comprises a number of vacuum switches VS connected in series and twice the number of capacitors C 1 , C 2  also connected in series, alternate points on the capacitor chain being connected through resistors R 1  to the junctions W between adjacent vacuum switches and the vacuum switches having shields SH connected by further resistors R 0  to the intermediate points on the capacitor chain. The capacitors C 1 , C 2  are of suitable value to divide the voltage between the switches as well as across individual switches. The shields may be inside or outside the envelope of the switch. Additional capacitors (C 3 ) may be connected across the pairs of capacitors C 1 , C 2  to improve the voltage distribution (Fig. 2, not shown).
Patent GB-1401947-A (GB)
Title: Vent plugs for storage batteries
IPC: H01M2/12
Filed: 1974-02-26
Abstract: 1401947 Vent plug for storage battery ROBERT BOSCH GmbH 26 Feb 1974 [27 Feb 1973] 8603/74 Heading H1B A vent plug 10 for a maintenance-free starter battery for insertion into an electrolyte filler hole 11 in the battery top 12 comprises a cover plate 13 from which depends a sheath 15 and a splash guard 16 of cone shape formed by six tongues 17 separated by slits 18. The vent hole 19 is surrounded by a short tube 20 having an inclined end 21. The lower end of the sheath 15 may be slotted (Fig. 3, not shown).
Patent GB-782934-A (GB)
Title: Improvements in or relating to pneumatic governors for internal combustion engines
IPC: F02D1/06
Filed: 1955-03-24
Abstract: 782,934. Pneumatic governors. SIMMS MOTOR UNITS, Ltd., and MIRACKI, Z. S. March 22, 1956 [March 24, 1955], No. 8651/55. Class 57. A pneumatic governor comprises a rectangular throttle valve 19, a suction port 16, and means 13, such as a fuel pump control rod, associated with the port 16 to control the engine speed, the valve 19 and the air intake 17 being shaped so as to provide only one air passage aperture 21. The valve 19 is in the form of a rigid flap hinged on a pintle 22 housed in a recess 24. The port 16 communicates with a chamber 11 closed at one end by a flexible diaphragm 12 attached to the pump control rod which is urged to maximum fuel position by a spring 14.