baber/WOPTO huggingface dataset:
Patent GB-202140-A (GB)
Title: Improvements in combing machines
IPC: D01G19/02
Filed: 1922-07-15
Abstract: 202,140. Holdsworth, W. July 15, 1922. Combing-machines.-In a circular wool combing-machine of the kind described in Specification 13636/15, the feed-boxes are provided with a movable jaw between which and the bottom of the box the fibre is fed to the comb circle by a pair of intermittently-moving feed-rollers. The fibre is held between the closed jaws of the feedbox and combed by a number of lines of teeth on an endless belt; it is then laid in the comb circle and drawn off by rollers and leathers. The feed boxes A, Fig. 5, are hinged to the rotary plate B, which carries the pins C forming the comb circle. An upper jaw a<1> is mounted to slide over a curved guide a<2>, and fitted with pins a<3> which enter into a hole in the bottom of the box. The upper jaw is pressed against the bottom by a plate spring a<9>. The upper jaw is raised by the engagement of a bowl a' carried by the jaw with a fixed bowl a<9> carried by the frame of the machine. The jaw is mounted on a carriage a<10> moving in guides a<12>, and is returned by springs a<14>. A catch and handle a<16> may be used to hold the jaw a<1> raised to allow the fibre to be threaded through by hand. The feed-rollers a<5> are operated by a pawl a<6> when the jaw is raised by the bowl a<8> to feed a length of fibre forward. The combing-devices D, Fig. 1, comprise an endless-band d<2> running over pulleys supported at one end only so that the band can be readily removed laterally without disturbing any parts. Air blasts issuing through suitable nozzles d<6>, d' support the tuft as it is being combed, and blow the noil &c. from the teeth into boxes d<8>. The feed-boxes run up an incline to raise the tuft into a position to be combed, and then pass down an incline d to lay the tuft over the pins C of the comb circle. The bowl a<7> now contacts with a cam-plate a<18> which slightly raises the upper jaw and feeds forward a short length of fibre. The fibre is then pressed into the comb pins C by an inverted channel guide c, and finally passes to the drawing-off rollers e<2> and leathers E. Several sets of these devices are arranged around the one comb circle C. The combing-bands d<2> are driven from a central gear by bands d'‹. The outer drawing-off rollers e<2> are driven from the shaft e<3> by gearing e<4>, and one of these gears drives a gear d<11> on the shaft of the gear d<10>. The gear d<10> also drives the inner drawing-off rollers e through gears e<1> at a slightly faster rate than the outer rollers c<2>. According to the Provisional Specification, the comb circle pins are mounted on the feed-boxes, the combing-belts are stripped by a brush, and an air blast is used to blow the fibres down on to the comb circle pins and into the range of the drawing-off rollers.
Patent GB-1189201-A (GB)
Title: Vibratory Grinding Mill
IPC: B02C17/14
Filed: 1967-04-27
Abstract: 1,189,201. Tube mills. SIEBTECHNIK G.m.b.H. 27 April, 1967 [28 Jan., 1967], No. 19557/67. Heading B2A. [Also in Division F2] A vibratory mill comprises tubular milling casings 2 resiliently mounted in support members 3 and containing, respective inner tubes 1 which are rigidly connected to the support members, and means such as eccentrics 8 for vibrating the support members to effect milling. Milling elements such as tubes or rods (not shown) are contained in the spaces between the tubes 1 and the casings 2. The milling casings are carried in axially compressed resilient packing members 10 and are capable of longitudinal, but not radial expansion, under the effects of temperature. The tubes 1 are rigidly connected to the support members by sieves 5 and gratings 6. The support members 3 are mounted on compression springs (11, Fig. 2 not shown). The tubes 1 may be adapted to pass a coolant or a heating medium through the mill or they may serve as air ducts, e.g., for sifting purposes or for rapidly emptying the mill. If the mill is large the tubes 1 may serve as chambers for milling the material before or after the material passes into the spaces between the tubes 1 and the casings 2, e.g., through openings in connecting members 4. The casings 2 and, if required, the tubes 1 may be arranged in parallel or in series along a path for the material to be ground.
Patent GB-1169597-A (GB)
Title: Liquid Density Regulators
IPC: H01M8/06
Filed: 1967-04-27
Abstract: 1,169,597. Automatic density control. SIEMENS A.G. April 27, 1967 [April 29, 1966], No.19567/67. Heading G3R. The position of a bouyant body completely immersed in liquid flowing through a vessel automatically regulates the density of that liquid by controlling a unidirectional magnetic field. In Fig.1, a bouyant body 1, which may be shaped or weighted to remain upright, is completely immersed in liquid flowing through a vessel 2 and is guided by rods 6 to move vertically with changes in liquid density. Body 1, which may contain liquid and be temperature compensated, has a density equal to that desired for the flowing liquid and carries permanent magnets 3 which operate one of two reed switches 5 when the density of the flowing liquid exceeds predetermined limits so that density correcting means (not shown) are operated. Externally adjustable springs 4, which may be coated to resist corrosion, are provided to set the density limits. Modifications in which the vessel contains two or more bouyant bodies having different densities are described. Magneto-resistive detectors in a bridge circuit may be utilized instead of reed switches. The flowing liquid may be a portion of the output of an evaporator the electric heater of which is controlled in an on-off manner by the density detector to maintain density constant. In another application the flowing liquid is recirculated electrolyte of a fuel cell which is passed through a cooler and an electrolyte concentrator the supply of inert gas or caustic alkali to which is controlled by the density detector to maintain electrolyte concentration constant. In a weightless situation, centrifugal force may be substituted for gravity by rotating the flow-through vessel.
Patent GB-919846-A (GB)
Title: Improvements relating to automatic position control systems
Inventor: PHILLIPS JAMES HUGH
IPC: G05B19/33
Filed: 1958-06-19
Abstract: 919,846. Electric correspondence control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. June 11, 1959 [June 19, 1958], No. 19576/58. Class 40 (1). The position of a work-table along an axis is measured by a rotary potentiometer transducer driven together with the lead screw, and corrected for backlash &c. by an inductive transducer carried jointly by the work-table and its slide. As shown (Fig. 1) a work-table 1 is to be positioned in accordance with a command signal developed at 20, e.g. from a programme record, which energizes a motor 5 to drive a lead screw 3 via gearing 7, the angular rotation being sensed by a rotary potentiometer 8 developing a signal in winding 11 to balance out the command signal from 20. The motor 5. also drives a resolver 9 (Fig. 2) having two perpendicular stator windings 9A, 9B, and two perpendicular rotor windings 9C, 9D, winding 9A being energized from an A.C. source 17, so that the voltages in windings 9C, 9D vary as the sine and cosine respectively of the angular displacement. These voltages are fed to windings 14B, 14C of a second resolver 14 consisting of planar zig-zag conductors, located in quadrature relationship with respect to a fixed winding 14A mounted on the slide 2, windings 14B, 14C being mounted on the work-table 1. The length of each zig-zag is such that one complete revolution of motor 5 and resolver 9 is equal to a linear displacement of one cycle between winding 14A and windings 14B, 14C. The output from winding 14A is fed back to winding 9B of transducer 9, and also added at 19 to the command signal from 20, and it is shown that the voltage introduced at 19 compensates for the small differences between the angular rotation of motor 5 and the linear displacement of work-table 1. In an alternative arrangement (Fig. 3, not shown) transducer 14 is A.C. energized and the correction signal obtained from transducer 9. The resolver 14 may have a rotary form when the work-table 1 is angularly moved, or coupled by an accurately machined rack and pinion to a linearly displaced worktable. Specification 802,472 is referred to.
Patent GB-728277-A (GB)
Title: Apparatus for supplying steam to the interiors of advancing moulds
IPC: B29C35/00
Filed: 1953-07-15
Abstract: 728,277. Moulding latex foam mattresses &c. UNITED STATES RUBBER CO. July 15, 1953 [July 26, 1952], No. 19596/53. Classes 70 and 87 (2). Apparatus for supplying steam to the interiors of a series of moulds comprises a conveyer for advancing the moulds and a steam-connecting unit on each mould, each unit being adapted to supply steam to a mould from a steam supply that is connected to the unit or to an adjacent unit. The invention is described in connection with the making of latex foam mattresses and large cushions, the steam being forced into the gelled latex to cure it. Fig. 1 shows an arrangement in which moulds M which have been lubricated, e.g. with a soap solution, and filled with latex foam are brought on rollers 36 to an endless conveyer 37. The.moulds pass through a heated gelling chamber C and then to the right within range of two flexible hoses 48, 49 which are supplied with superheated steam from a (stationary) pipe 45. The steam pipes 23 that pass into the moulds are inter-connected by flexible pipes 30 having manually operable couplings 32, and steam supplied by hose 48 or 49 to any one of a series of three-way valves 24 (one valve for each mould) passes into all of the moulds. The pipes 30 are supported by frames 31 attached to the moulds. The hoses are connected to inlets 28 of valves 24 by quick couplings 28<1>. In the position shown, steam is being injected into all of the moulds by hose 49 through valve 24B. Hose 48 is idle, being transferred from a position in which it was connected to valve 24C to a position in which it will be connected to valve 24A, as shown by the broken lines. Presently, when the mould carrying valve 24B has advanced a little, the steam supply from hose 49 will be cut off by turning valve 50 at the end thereof and valve 24B will be closed on its steam-receiving side by turning hand-wheel 33; hose 49 will then be uncoupled from valve 24B and swung rearwardly to a position behind hose 48. By using two steam hoses the moulds can be supplied continuously with steam. As a mould reaches the end of the conveyer its steam pipe 30 is disconnected from the succeeding steam pipe 30 (the succeeding valve 24 being closed), the mould is opened and the cured article is removed. If one of the hose ends is allowed to travel too far, the resultant pull operates a micro-switch 55 to stop the conveyer. The empty mould is passed through a cooling chamber on its return journey to the latex-filling station. Fig. 4 shows a mould comprising a base 11, lid 10 having air-escape holes 53, shaping cores 15 and steam-admitting cores 16 connected by pipes 19, 18, 23 to valve 24, the mould being bolted to a cradle 12 which rests on the conveyer. Specification 687,504 is referred to.
Patent GB-204445-A (GB)
Title: Improvements in or relating to devices for use in twisting yarn
IPC: D01H13/04
Filed: 1922-07-17
Abstract: 204,445. Bachman, J. S. July 17, 1922. Rollers and roller heads; thread-guides.-Relates to yarn or thread twisting machines of the kind wherein groups of yarns are passed around a pair of spaced parallel rollers and means are provided to separate the coils of combined yarns. Long smooth driven rollers 6, 7, common to a number of groups of yarn, are employed and guides consisting of upstanding pins 9 or grooved blocks 12, Fig. 4, are mounted on an adjustable bar 8 between them.
Patent GB-911839-A (GB)
Title: Improvements relating to web winding apparatus
Inventor: BECLERKE HANS-JURGEN
IPC: B65H23/198
Filed: 1961-05-31
Abstract: 911,839. Winding webs. LICENTIA PATENT VERWALTUNGS G.m.b.H. May 31, 1961, No. 19678/61. Class 100 (1). [Also in Groups XXXV and XXXVII] A Ward-Leonard generator m1 supplies motor m2 driving web B, a winding reel W being driven by motor m4 in series with auxiliary generator m3. The tension of the web is kept at a desired value by varying the field excitation of generator m3 in accordance with the difference between desired and actual values of the tension. In one stage of operation, the field excitation of motor m4 is determined by potentiometer r2 coupled to servomotor m5 which is energized in accordance with the voltage of generator m3 applied through amplifier p2. In this manner, the voltage of the motor m4 balances that of the generator m3 and the winder is driver in accordance with the speed of the web. A second stage of operation is introduced by the tapping of potentiometer r2 entering a constant-resistance zone t2, a tapping of potentiometer r1 leaving its constant-resistance zone t1 at the same time. The potentiometer rl is coupled to the servomotor and is connected across the Ward-Leonard generator. The amplifier p2 is now controlled in accordance with the difference between the voltage of generator m3 and thevoltage derived from potentiometer r1 so that the speed of the motor m4 varies with the diameter of the wound material. The position of the slider on potentiometer r1 indicates the voltage of generator m3. If the web breaks, switch S1 is operated automatically, the voltage of generator m3 being set to the proportion of the total voltage that it had before the breakage and which was stored by the potentiometer r1. Thus, when operation is restored after a breakage, the apparatus continues to operate under the same tension conditions and re-winding on the old diameter is facilitated. The return of the switch S1 is also effected automatically by a photo-cell or current-responsive means. In a modification, constant web tension is obtained by coupling a further potentiometer to the potentiometer r1 and connecting it in the circuit for comparing the desired and actual values of the tension, the armature current of the winding motor being representative of the actual tension in the web, Fig. 2 (not shown).
Patent GB-275954-A (GB)
Title: Improvements in and relating to electric circuit interrupters
IPC: H01H9/34
Filed: 1927-07-25
Abstract: 275,954. British Thomson-Houston Co., Ltd., (Assignees of Hewlett, E. M.). Aug. 16, 1926, [Convention date]. Magnetic blow-outs.-The arc chute is divided by barriers into portions A, B, C connected with each other by opening 20, 21; an arc starts in the portion A and is driven by a blow-out coil 18 along an arcing contact 22 or 23 and thence through the window 20 or 21 into the portion C or B thus traversing a skew or spiral path. The invention is shown applied to a switch having a main contact 12, auxiliary contacts 14, 15, an auxiliary blow-out coil 24 included in circuit when the main contacts open and serving to drive the arc formed between the auxiliary contacts 14, 15 on to contacts 17, 15. The arc then strikes the contacts 23, 22 and becomes divided into two arcs, with the blow-out coil 18 in circuit between them. The right hand arc, between the contacts 15, 22, is driven in a counterclockwise direction relative to the coil 18 and passes through the window 20 into the chamber C and the left hand arc between the contacts 17, 23 is driven in a clockwise direction through the window 21 into the chamber B.
Patent GB-1422341-A (GB)
IPC: H04N9/04
Filed: 1972-04-27
Abstract: 1422341 Colour reproduction KODAK Ltd 19 April 1993 [27 April 1972] 19691/72 Heading H4F In an optical scanning method directly producing a high resolution luminance signal and a low resolution chrominance signal, the object to be scanned-e.g. transparency or cine-film, is scanned with a small light spot (hava diameter equal to the scanning lines spacing) to produce the luminance signal and with a a larger light spot to produce the chrominance signal(s). The raster on CRT 1 is focused on object 5 by lens system 4 having a transparent plate 6 at its stop plane with a central hole. A condenser 7 focuses the plate 6 on the end surface of an optical fibre bundle 9 such that light passing through the hole in the plate and then through the object 5 falls on the centre of the end surface to give the small spot, whilst the light passing through the surrounding plate falls on the outer part of the end surface to give the larger spot. The fibres at the centre of'the end surface are therefore fed to a luminance detector 10, possibly via a response correcting filter 11 and the surrounding fibres are distributed to R, G and B detectors 15, 16, 17 in quantities dependent on the desired relative sensitivities. The plate 6 may be replaced by a lens having more aberration in its outer zones than in its inner zones. The low definition chrominance signals R, G, B may be combined to give a low definition luminance signal L<SP>1</SP>: viz and an edge enhancement signal Log C logarithmically obtained by subtracting the low definition luminance signal L<SP>1</SP> from the high definition signal L, noise being removed (i.e. "coring") from either high definition signal viz or from the edge enhancement signal viz Corrected chrominance signals R<SP>1</SP>, G<SP>1</SP>, B<SP>1</SP> are produced by combining R, G and B viz and the corrected signals edge enhanced, viz
Patent GB-368181-A (GB)
Title: Improvements in typographical line casting machines
IPC: B41B11/72
Filed: 1931-07-09
Abstract: 368,181. Type-bar-making machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) July 9, 1931, No. 19731. [Class 100 (iii).] Trimming type-bars; moulds ; matrices.-In order to remove irregularities and high spots from the printing- faces of type-bars, the bars are cast of slightly more than type height, and their printing-faces are trimmed, so as to reduce them to type height. For this purpose, the moulds are made slightly deeper than usual, and the printing-faces are trimmed, as the mould-disc rotates, by a stationary knife J, Fig. 3, which is arranged opposite to the usual back-knife H. On account of the increased depth of the moulds, the type-bars project into the path of the knife J, which clears the type-bars cast in ordinary moulds. The mould-disc is supported during the trimming by a bracket J<1>, Fig. 9, having an adjustable wear-shoe j<3>, which projects behind the disc. A guide-surface j<5> on the bracket fits against the front face of the disc, to support it against displacement by the back-knife. In an alternative method, matrices having formative cavities of slightly greater than normal depth are employed in conjunction with moulds of normal depth. The side-walls of the cavities are made right-angular, instead of bevelled, to the extent of the increase in depth, so that the area of the character faces is not increased by the trimming.
Patent GB-1261806-A (GB)
Title: Rubber article or instrument and method of producing the same
Inventor: RUESCH WERNER
IPC: A61F2/958
Filed: 1969-04-18
Abstract: 1,261,806. Catheters. WILLY RUSCH. 18 April, 1969 [26 April, 1968], No. 19859/69. Heading A5R. [Also in Division C3] Rubber articles for surgical, medical or hygienic use, e.g. balloon catheters, are made from rubber that contains an organic silicone compound having a molecular weight in excess of 90,000, the compound being located in the region of the surface of the article and capable of migrating in the rubber towards the surface thereof to replace compound removed from the article, e.g. by sterilization.
Patent GB-149524-A (GB)
Title: Improvements in portable periscopes
IPC: G02B23/08
Filed: 1919-08-13
Abstract: 149,524. Marshall, E. G. Aug. 13, 1919. No Patent granted (Sealing fee not paid). Periscopes. - Mirrors are provided with foldable fittings by which they can be attached to a support and adjusted to any angle, for use as a periscope. The fittings comprise a pair of hinge members C, D mounted in a socket B secured to the back of the framed mirror A, the members C, D being adapted to spring into holes in the support E. In the form shown in Fig. 4, one hole is fixed and the other is formed in a slidable member M. In a modification, one of the holes is formed in a lug secured to a sliding ferrule; or several holes are drilled through the support.
Patent GB-445821-A (GB)
Title: Improvements in recoil-absorbers for firearms
IPC: F41A21/36
Filed: 1935-07-12
Abstract: 445,821. Gun recoil - absorbers. GALLIOT, N. J. A., Vaucresson, Seine-et- Oise, and CHABLE, J. A. V. A., 110, Boulevard Exelmans, Paris, both in France. July 12, 1935, Nos. 19949 and 19950. Convention dates, July 16, 1934 and June 3, 1935. [Class 92 (ii)] Relates to muzzle attachments for absorbing recoil having one or more convergent-divergent nozzles b and fixed deflector surfaces c<2> as described in Specifications 131,040 and 176,337, [both in Class 92 (ii)]. According to the present invention, helicoidal openings e<1>, e2, e<3> are provided for the escape of the gases after passing the deflectors such openings imparting centrifugal force to the gases to scatter them transversely of the weapon. The helicoidal openings are preferably of shorter pitch than that of the gun rifling and than that of the grooving b<3> provided in nozzles of the kind described in Specification 389,469. The openings are formed in an annular casing e, their front surfaces y forming continuations of the deflector surfaces c<2>. Fig. 2 shows plates l arranged above and below the attachment to prevent upward and downward blast of the gases. The plates are carried by sleeves m, n adjustable round the axis of the attachment and held by screws p. The arms or walls g between the openings e<1>, e<2>, e<3> may be strengthened by beadings.
Patent GB-818119-A (GB)
Title: Butyl white or light colored vulcanizates
IPC: B60C1/00
Filed: 1957-06-26
Abstract: A butyl rubber composition comprises 100 parts of a rubbery copolymer of a major proportion of a C4 to C8 iso-olefin and a minor proportion of a C4 to C14 multiolefin compounded with from 10 to 100 parts of calcium oxide and from 10 to 50 parts of magnesium oxide.  There may also be present from 10 to 150 parts of a white pigment, e.g. titanium dioxide, and from 5 to 80 parts of a further basic metal compound, e.g. zinc oxide (see also Specification 786,016).  The iso-olefin may be isobutylene, 2 - methyl - 1 - butene or 3 - methyl - 1 - butene and the multiolefin may be isoprene, butadiene, dimethylbutadiene, dimethallyl or allo-ocimene.  The butyl rubber compositions may be vulcanized in the presence of sulphur and accelerators such as tetra-alkyl thiuram polysulphides, e.g. tetramethyl and tetrabutyl thiuram disulphides, or polyalkyldithiocarbamates, e.g. tellurium diethyl-dithiocarbamate and zinc dimethyldithiocarbamate, and also in the presence of p-dinitrosobenzene, p-quinone dioxime or p-quinone dioxime dibenzoate or their derivatives, zinc dialkyl polythiocarbamate, lead oxide, benzothiazyl disulphide, lead carbonate, barytes, lead sulphate, calcium carbonate, ferric hydroxide, chrome-yellow lead chromate, Prussion blue, ultramarine blue, phthalocyanine stearic acid, fillers, such as talc, plasticisers and anti-oxidants, e.g. phenyl beta-naphthylamine or dicyclohexylamine stearate. Preferred nonstaining anti-oxidants are alkylated aromatic or heterocyclic compounds, especially alkylated bisphenols, e.g. bis - (2 - hydroxy - 3 - t - butyl - 6-methyl phenyl)methane; alkylated diphenylamines, e.g. heptylated diphenylamine; or acylaminophenols, e.g. N - lauroyl p - aminophenol.  The light-coloured vulcanizates may be used for the sidewalls and other parts of innertube containing and tubeless motor tyres and for light-coloured window and door weatherstripping and for electrical insulations.