baber/WOPTO huggingface dataset:
Patent GB-602797-A (GB)
Title: Improvements in or relating to pre-gummed papers, fabrics and like sheet materials
IPC: C09J7/32
Filed: 1944-03-01
Abstract: 602,797. Coated fabrics. SHAND KYDD, Ltd., and NEUMANN, S. March 1, 1944, No. 3882. [Class 140] Pre-gummed sheet material is made by coating the rear surface of the material with an aqueous suspension of starch or a starch degradation product such as chlorinated starch or white dextrin which is not normally soluble in cold water, heating the coated material as by passing it over heated cylinders so that the starch or starch degradation product swells and attains a cold-water soluble condition, and finally drying. The sheet materials include paper, cardboard, fabric, tape, and particularly a hanging paper such as wallpaper, poster or billboard paper. The aqueous suspension may include a small proportion .of a cold-water-soluble adhesive to act as a binder for the starch or starch product and a proportion of bentonite or similar colloidal clay to increase slip characteristics. as described and claimed in Specification 588,554.
Patent GB-326946-A (GB)
Title: Metal adjustable safety pit prop
IPC: E21D15/58
Filed: 1929-02-06
Abstract: 326,946. Frodingham Iron & Steel Co., Ltd., and Johnson, G. H. Feb. 6. 1929. Mine props.-A telescopic prop in which the members are held in adjusted position by means of a transverse wedge has one member a of H- section girder and the other b of hollow H-section, i.e. with hollow flanges and web adapted to enclose the other member. The wedge d passes through apertures c provided in the member b or may pass through apertures which register in both members. The hollow member is provided with a cap f while the foot of the lower member is inturned at h to strengthen it.
Patent GB-290360-A (GB)
Title: Improvements in or relating to machines for finishing the edges of sheet material, such as leather
IPC: C14B11/00
Filed: 1927-02-12
Abstract: 290,360. British United Shoe Machinery Co., Ltd., Ricks, F., and Richards, A. E. Feb. 12, 1927. Sheet material, finishing edges of.-Machines for finishing the edges of sheet material such as leather by searing or shrinking the marginal portions of one side are provided with shrinking means which subject the material to successive and distinct shrinking operations at different points along its marginal length during a single relative traverse of the work-piece and the shrinking means. The invention is particularly applicable to the edge-finishing machines described in Specifications 234,170 and 261,458. Fig. 1 shows the work-table 241 of the machine described in Specification 261,458, the shrinking- tool 268, plough 266, and presser roller 277, being, however, displaced from the centre of the table in the direction of travel of the work-piece. The supplementary shrinking-tool 3 and plough 1 are arranged in front of the shrinking-tool 268 and are the first to operate on the skived margin of the work-piece. The faces of the searing-tool 3 and plough 1 are substantially shorter than those of the members 268, 266, and the plough 1 has no projection corresponding to the projection 267 on the plough 266 for bending over the seared margin. The searing-tools 3 and 268 have separate controls for their heating currents, and are adjustable over the width of the margin of the work piece, a similar adjustment of the plot ghs 1 and 266 being effected by screws 5, 274. The heating-tools are each supported upon a pivoted arm provided with a stop-screw for bringing the tool and work as close together as possible, and each arm also carries an adjustable presser wheel which tracks on the surface of the work and limits the depth to which the tool can sink into the material, as described in Specification 193,936. The positions and temperatures of the searing-tools may be adjusted so that a. mild searing is followed by a more intensive one, or one tool may act on the ridge between the skived edge and plane surface of the work-piece, the other acting on the skived edge to effect the curling thereof.
Patent GB-1220791-A (GB)
Title: Improvements in or relating to formwork for use in the construction of floors, roofs or ceilings
Inventor: VARLONGA GIOVANNI
IPC: E04G11/46
Filed: 1969-01-23
Abstract: 1,220,791. Floor shuttering. G. VARLON GA. 23 Jan., 1969 [3 July, 1968], No. 3983/69. Heading E1S. Channel-sectioned metal floor shutters have hooked longitudinal edges 6 which sit on the lower flanges of I-beams 1 which are cast into the floor, devices 13 being provided to draw the hooked edges together for the ultimate removal of the shutters. The shutters each have stiffening ribs 8 on the underside of their flat upper surfaces 3, and the devices may include a cranked lever 14 and tie-rods 12 with hooks 11 on the outer ends.
Patent GB-914781-A (GB)
Title: Improvements in and relating to apparatus for the analysis of substances by absorption of radiation
Inventor: MARTIN ALBERT EDWARD
IPC: G01N21/33
Filed: 1958-02-07
Abstract: 914,781. Photo-electric absorption-measuring apparatus. GRUBB PARSONS & CO. Ltd., Sir HOWARD. Jan. 14, 1959 [Feb. 7, 1958], No. 4118/58. Class 40 (3). An analyser for the analysis of substances by the absorption of radiation in the ultra-violet; visible or infra-red regions of the spectrum is characterized (according to a first arrangement, Fig. 1) by the feature that between a radiation source 1 and a detector 6, there is only a rotary shutter 9 interposed in the radiation path to interrupt two beams of radiation alternately, a collimating element 2, 3 in each beam, a focusing element 5, 8 in each beam for focusing radiation from each collimating element on detector 6, a container 14 for a sample under test interposed in one beam, stationary wavelength selection means comprising, in the beam passing through the sample, a diffraction grating 4 for selecting at least one wavelength strongly absorbed by a component to be detected in the sample and in the other beam wavelength selection means 7, 16 for selecting a wavelength band coincident with the band selected in the sample beam or a band in the region thereof, and optical attenuating or shutter means 12 in one of the beams for equalizing the energy received by the detector from the two beams. The wavelength selecting means in the other beam may be a selection reflector, a reflecting type diffraction grating or, as illustrated, a combination of mirror 7 and interference or other filter 16. Where similar or identical diffraction gratings are employed for the wavelength selection, the analyser (according to another arrangement, Fig. 2) is characterized by the provision of only a common collimating element 18 and a common focusing element 19 for the two paths. Reference is made to modifications using separate sources and detectors for the two radiation paths. Reference is also made (without giving details) to a null-balance arrangement in which the detector output signal controls the setting of an optical attenuator replacing or additional to attenuator 12.
Patent GB-1463821-A (GB)
Title: Notch filter
IPC: H03H7/01
Filed: 1974-01-29
Abstract: 1463821 Filter circuits; colour television NIPPON VICTOR KK 29 Jan 1974 [10 Feb 1973] 04151/74 Headings H3U and H4F A notch filter, Fig. 11, which comprises a series branch 30 and a parallel branch 31 connected in inverted-L configuration, has a characteristic as shown in Fig. 3 with attenuation bands at a frequency f 1  and odd-number multiples thereof and pass bands at even-number multiples of f 1 . The values of the impedance elements of the two branches are selected so that, if a graph is plotted of the difference between the phase shifts introduced by branches 30, 31 against frequency and a curve is drawn between the points corresponding to even-number multiples of f 1 , the curve has the form shown in Fig. 13 i.e. a gently sloping mound with a small maximum value. This minimizes phase distortion of a signal passing through the filter. Fig. 1 depicts embodiments of the invention in a colour distortion reduction circuit of a PAL television receiver, f 1  being equal to one half of the horizontal scanning frequency. Notch filters 20, 21 are respectively provided between U-axis and V-axis demodulators 16, 17 and a colour matrix circuit 22.
Patent GB-1101281-A (GB)
Title: Waste trim cutting
Inventor: ARMELIN EDOUARD ROGER
IPC: D21B1/10
Filed: 1964-01-31
Abstract: 1,101,281. Comminuting apparatus. CHAMBON Ltd. 22 Jan., 1965 [31 Jan., 1964], No. 4175/64. Heading B2A. Apparatus for cutting-up waste paper trimmed from a roll comprises a housing 18 with an adjustable stator cutter blade 14 mounted therein and a rotor 10 bearing cooperating cutter blades 11. 13. The rotor and stator blades are angled with respect to the rotational axis to execute a scissors-type cut. An inlet aperture 15 is arranged to receive waste trim under air pressure so as to deliver the waste trim to the cooperating cutter-blades. After cutting, the trim falls into a disposable paper bag 17, which is secured to the housing 18 by a pull cord 19. The blades 11..13 are adjusted on the rotor 10 by set screws 25 .. 27 and locked by screws 22 .. 24. Blade 14 is adjusted by a set screw 30 and clamped by a screw 33.
Patent GB-782446-A (GB)
Title: Improvements relating to submersible electrically driven centrifugal pumps
Inventor: CORNER JOHN ALAN
IPC: F04D13/14
Filed: 1955-02-12
Abstract: 782,446. Centrifugal pumps. BERESFORD & SON, Ltd., J. Feb. 9, 1956 [Feb. 12, 1955], No. 4243/55. Class 110 (1). A submersible centrifugal pump comprises two or more self-contained electrically-driven pump units having ratings the sum of which is equal to the rating the pump is desired to possess, the outlets of which are adapted to be connected to a common rising main. The pump shown comprises three self-contained submersible pump units 12, each comprising a centrifugal pump 122 driven by an electric motor 121, connected by the three branches 111 of an adaptor 11 to the rising main 10. The separate branches 111 may be replaced by a single outlet manifold. The driving motors may be above instead of below the pumps. Under part-load conditions, one or more pump units only may be operated, each unit incorporating a non-return valve to prevent backflow through the inoperative units.
Patent GB-1011217-A (GB)
Title: Improvements in methods of and means for dividing a bunch of bars from a larger bunch
IPC: B21B39/00
Filed: 1964-01-31
Abstract: 1,011,217. Separating and conveying articles. SCHLOEMANN A.G. Jan. 31, 1964 [Feb. 2 1963], No. 4309/64. Heading B8A. [Also in Division B3] Rolled bars 1 from a conveyer 10 are separated from a large bunch into smaller bunches 3 having a predetermined number of bars by means of rotating disc sectors 4 each having a wedge surface 5. The first sector, on the left, separates a bunch from the stock of bars and then further discs, whose wedge surfaces are relatively staggered, progressively separate the bunch. The sectors are driven by chains 15 from motors 7 and 8. The separated bunch, Fig. 3, is shifted by a piston-operated lever 11 down a shoot 12 to an endless conveyer 13 for subsequent bundling.
Patent GB-295449-A (GB)
Title: Improvements in telephone systems
IPC: H04Q3/42
Filed: 1927-05-10
Abstract: 295,449. Standard Telephones & Cables, Ltd., Wright, E. P. G., Baker, J. H. E., and Cameron, A. H. May 10, 1927. Divided on 295,421. Drawings to Specification. Automatic exchange systems.-A subscriber's line on which a permanent loop develops is located by a tandem arrangement of hunting switches the combined setting of which controls a number indicator to identify the faulty line. The invention is described with reference to an arrangement which is identical with that described in Specification 295,421.
Patent GB-626991-A (GB)
Title: Improvements in or relating to fire control apparatus
IPC: F41G5/08
Filed: 1947-02-14
Abstract: 626,991. Target-tracking apparatus. AKTIEBOLAGET BOFORS. Feb. 14, 1947, No. 4385. Convention date, Dec. 23, 1943. [Class 92 (ii)] Apparatus for tracking a target moving through space comprises two groups of elements, the first of which includes shafts whose angular positions represent the position of the target in space and other data appertaining to the target speed and direction of movement, and the second group comprising means for altering the rates of change of the target's position. The apparatus is used to feed the data obtained to a computer. Space diagrams.-In Fig. 1, I is the position of the apparatus, M the target, T the target's future position, MS a perpendicular to IM in the plane IMT, MR a horizontal perpendicular to IM, x the angle SMR, v the angle TMS, the range IM, # the angle of elevation, and α the azimuth angle of the target from a fixed horizontal IO ; v is the target's velocity, #<SP>1</SP>, Fig. 3, is a quantity v/l and #<SP>1</SP> a quantity l<SP>1</SP>/l. The Specification gives in detail the numerous relations between all these quantities, and describes how, with the apparatus shown in Fig. 5 each value may be obtained from the input data. Apparatus.-The apparatus, Fig. 5, includes a # shaft 28 which the operator can control to maintain the sight at the correct elevation, an α shaft 31 and a # shaft 9, these being controlled by ##<SP>1</SP> hand wheel 58, # α<SP>1</SP> hand wheel 51 and ##<SP>1</SP> hand wheel 76 which are moved when errors occur in the tracking. When correct tracking occurs appears on shaft 99, v on shaft 20 and #<SP>1</SP> on shaft 80. Assuming the target to be correctly tracked, a screw on the shaft 80 displaces a carriage 7 and hence a roller 2 a distance #<SP>1</SP> from a fixed datum position. The roller frictionally engages a disc 1 driven at a constant speed, and thus shaft 4 carrying the roller rotates at a speed proportional to #<SP>1</SP>. It is this drive which causes the continuous movement of the shafts 9, 28 and 31 during the tracking operation, the drive taking place through devices 5, 26, 30 having other inputs such as shafts 6, 27 and 38 respectively and being designed according to the formulµ given in the Specification to give the required outputs. Many other devices, as indicated by the other rectangles in Fig. 5, are also so designed according to formulµ given in the Specification in such manner that when an error occurs in tracking and one of the hand wheels 51, 58, 76 is operated to correct the error, the outputs of such devices directly or indirectly influence the inputs of devices 5, 26, 30. The value #<SP>1</SP> is automatically set into the shaft 8 by the shaft 9, this shaft serving by the drive 40 ... 44 to rotate a disc 39 at a speed proportional to #<SP>1</SP> and thus to rotate a roller 45, positioned by the carriage 7, at a speed proportional to #<SP>1</SP>, #<SP>1</SP> which is shown to be proportional to a variable speed #<SP>11</SP>. This is transmitted by shaft 47 through differential 48 to the shaft 8.
Patent GB-230434-A (GB)
Title: Improvements in or relating to apparatus for pulverizing, feeding and burning fuel
IPC: F23K1/00
Filed: 1924-05-29
Abstract: 230,434. Raymond Bros. Impact Pulverizer Co., (Assignees of Crites, J.). March 8, 1924, [Convention date]. Drawings to Specification. Fuel, feeding.-In apparatus for pulverizing fuel and feeding it to furnaces the material is pulverized in a mill by impact with beaters of the swing-hammer type, means being provided for causing a large stream of low-velocity air to pass through the beater-chamber for carrying the pulverized material through the chambers. Specification 230,405 is referred to.
Patent GB-476356-A (GB)
Title: Improvements in and relating to two-cycle internal combustion engines
IPC: F02B75/02
Filed: 1937-02-15
Abstract: 476,356. Cylinders. DUFOUR, L Feb. 15, 1937, No. 4422. Convention date, Dec. 29, 1936. [Class 7 (ii)] In a two-stroke spark. ignition engine having pis. ton-controlled ports and a combustion chamber in the cylinder head shaped to receive a projection on the piston, the wall of the chamber beginning at that side of the cylinder along which the charge enters is constructed as a spiral 18 leading into a substantially cylindrical pocket 9<1>, the lower surface of which is connected to the opposite side of the cylinder wall by a convex surface 15, the diameter of the pocket being approximately between one-third and one-quarter of the cylinder diameter, and the pocket being so displaced with respect to the cylinder axis towards the said opposite side of the cylinder that the top of the piston, forming a deflector to direct the charge along the cylinder wall, remains laterally of the pocket when the piston is at the end of the compression stroke, so that the deflector does not disturb the whirling movement, produced by the entering charge, in the combustion chamber. The piston has a curved surface 16 parallel to the curved surface 15 in the cylinder head and when compression takes place, the gases in the channel between the surfaces 15 and 16 are forced into the cylindrical chamber and assist the whirling movement. In a modification, inlet ports are arranged on the same side of the cylinder as the exhaust port, and the piston has a curved surface parallel to the spiral surface 18 in the cylinder head, which at compression forms a channel analogous to that between the surfaces 15 and 16.
Patent GB-435517-A (GB)
Title: Improvements relating to trays
IPC: A47G23/06
Filed: 1935-02-12
Abstract: 435,517. Trays or table tops. MARTIN, (nee MACKINTOSH), M., and MARTIN, W. A. G., Whinmoor Court, Sandfield Park, Liverpool. Feb. 12, 1935, No. 4450. [Classes 52 (iii) and 128] A tray is made with its rim separate from the carrying panel, the panel being a loose fit in the rim and capable of moving up and down therein, but being undetachable therefrom. As shown, the sides constituting the rim are flanged at C and D. Alternatively, the rim may consist of four unflanged wooden bands mitred at the corners and fastened by triangular metal castings or pressings. When the panel is placed on a stool smaller than itself the rim drops, the tray top being then practically flat and usable as a table. One side of the panel may be covered with baize for card playing, and the other may be either covered with rubber or linoleum or marked for playing draughts or chess.
Patent GB-402035-A (GB)
Title: Improvements in or relating to light metal pistons
IPC: B23P15/10
Filed: 1932-02-15
Abstract: Pistons are manufactured from an alloy containing at least 90 per cent aluminim, 3 per cent copper and 0.5 per cent magnesium with or without iron, manganese, and silicon in small quantities.
Patent GB-564319-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H04B1/12
Filed: 1943-03-19
Abstract: 564,319. Thermionic valve circuits. STANDARD TELEPHONES & CABLES, Ltd., and LEVY, M. M. March 19, 1943, No. 4487. [Class 40 (v)] [Also in Group XXXVI] Voltage variation in the high tension source used to supply a thermionic valve is compensated by connecting the cathode of the valve to a point between two impedances connected across the source, and the positive grid bias necessitated is derived from the anode sourcethrough means which render the bias substantially independent of the variations of the source. Fig. 6 shows a three-stage amplifier in which compensation is effected by connecting the cathodes of the valves V to impedances Ya, Yc, such that Ya/Yc=Á-1, where Á is the amplification factor of the valve. A constant voltage is derived from the high tension source by the neon tube N and appropriate voltage, for grid bias tapped from potentiometer R1, R2. If valves of different characteristics are used, separate tappings may be employed. Fig. 7 shows a valve voltmeter in which the valve V forms one arm of a bridge comprising resistances R5, R6 and a gas-filled discharge tube N1 as the remaining arms with the supply across one diagonal and a current indicating instrument M across the other diagonal. The voltage to be measured is derived from the load R7 of a diode D. The impedances Ya, Yc may be resistances if slow fluctuations only are to be compensated and be shunted by appropriate condensers to compensate for hum and can take the place of or supplement the usual decoupling arrangements.
Patent GB-1302844-A (GB)
IPC: A01D82/00
Filed: 1970-01-30
Abstract: 1302844 Crop-curing machines BUCHERGUYER AG MASCHINENABRIK 30 Jan 1970 [31 Jan 1969] 4511/70 Heading A1F Cut grass is fed by rotating pick-up means to a beating drum rotating about a horizontal axis positioned rearwardly of the axis of rotation of the pick-up means, the beating drum being partially surrounded by a guide plate. In Fig. 1, lying grass is picked up by a driven rotor 5 pivoted at 5 and supported by ground wheels, and the beating drum 2 is supported on further ground wheels. In Fig. 2, standing grass is cut by a disc mower 13 and picked up on its driven discs 15. The discs 15 comprise hinged knives 17 and are disposed sideby-side across the machine, adjacent pairs of discs being rotated in opposite directions. The mower 13 is supported on a slider 14. A further beating drum may be mounted behind and on the same level as the drum 2 and rotated in the same direction, or may be mounted above and slightly behind the drum 2 and rotated in the opposite direction. The beating drum 2 comprises beater bars 4 which may be straight or arranged in a herringbone pattern or be serrated, or the drum 2 may comprise co-axial discs joined by beater bars.
Patent GB-554396-A (GB)
Title: Improvements in and relating to devices for securing stair carpet
IPC: A47G27/06
Filed: 1942-04-08
Abstract: 554,396. Stair-carpet fasteners. SMART, J. April 8, 1942, No. 4610. [Class 52 (v)] A device for holding stair carpets consists of an elongated parallel sided member having a key-hole slot c formed therein and an enlargement b which is wider and also thicker than the remainder of the device so that when in use the elongated member will lie parallel to the horizontal and upright surfaces of the stair. The device is attached by passing the key-hole slot over the head of a screw positioned near the edge of the carpet.
Patent GB-451642-A (GB)
Title: Improvements in or relating to rotary separating apparatus
IPC: B02C15/02
Filed: 1936-02-15
Abstract: 451,642. Mills with centrifugal separators. INTERNATIONAL COMBUSTION, Ltd., Aldwych House, Aldwych, London, and O'MARA, R. F., 525, Arlington Place, Chicago, U.S.A. Feb. 15, 1936,No. 4650. Convention date, April 15, 1935. [Classes 23 and 59] A separator on a vertical axis has a radiallv-vaned variablespeed rotary deflector placed between a lower inlet opening and an upper outlet opening, and its periphery extends into proximity to a stationary annular deflecting surface. The separator may be combined with a grinding mill, and is arranged to pass over-size material back to the mill while a fan causes the air stream with the small particles in suspension to pass to a cyclone separator. The casing 1 of the mill A, Fig. 1, is supported by the frame 2 and contains rollers 13 in carriers 11 pivoted in the spider 10 on the shaft 3 which is driven from the shaft 9 through bevel gearing. The casing 22 of the separator B is of inverted conical form, and has a cylindrical top 21 provided with a cover plate 20 carrying the outlet conduit 19. A gear casing 23 is supported by radial plates 24, and has a bearing for the shaft 26 to which is secured the rotary deflector 25. This deflector consists of a centre disc with radially projecting vanes 29. The ends of the vanes are bevelled and rotate close to the lower surfaces of the plate 32 and a conical deflector 31. The fan in the system draws air from the annular manifold 17 through the openings 18 and upwards through the mill where the pulverized material is entrained. The centrifugal action of the deflector 25 causes the large particles to strike the deflector 31 and return to the mill, while the small particles pass with the air stream between the radial vanes 29. The degree of separation may be varied by changing the speed of rotation of the deflector 25. In a modification the separator is combined with an impact pulverizer.