baber/WOPTO huggingface dataset:
Patent GB-758548-A (GB)
Title: Production of combustible gases
IPC: C01B3/40
Filed: 1954-03-08
Abstract: <PICT:0758548/III/1> A catalyst bed 11 for use in the production of combustible gases from hydrocarbons in vapour form by a high temperature catalytic process, comprises a mass of solid bodies of which those bodies 15 that are at and near to the inlet end of the catalyst bed have a greater heat storage capacity than those 16 which are further through the bed.  The variation in heat storage capacity may be achieved by varying the surface area/volume ratio of the catalyst bodies, e.g. by altering the size or geometrical proportions.  As shown, each catalyst body consists of a short hollow thick walled cylinder extruded from bauxite and calcium oxide or a mixture of magnesite and calcium oxide, the bodies 15 being larger than those 16.  The process is conducted cyclically on the "run and blow" principle, and during the "run" steam is led into chamber 10 through inlet 12 and hydrocarbons through inlet 13, the combustible gas emerging through outlet 14.  Specifications 648,965 and 666,524 [both in Group XII] are referred to.
Patent GB-1439435-A (GB)
Title: Method of determining the modulation transfer function
IPC: G01M11/02
Filed: 1974-02-14
Abstract: 1439435 Measuring modulation transfer function AGFA-GEVAERT AG 14 Feb 1974 [15 Feb 1973] 6765/74 Heading G1A The modulation transfer function (MTF) of a photographic material or an optical system is determined using incoherent light and a scatterer of known noise distribution or spatial frequency spectrum produced using coherent light. The scatterer is projected on to the photographic material to be tested either by contact or using an optical system of known MTF or in the case of an optical system the scatterer is projected to form an image in a plane or on a photographic material of known MTF by means of the optical system. The processed photographic material or the image is scanned with a microphotometer whose output signal is frequency analyzer or subjected to a correlation analysis. The scatterer may be a speckled pattern produced on a photographic plate by the interference of laser beams one of which has been passed through a diffuser. A comparison zone of equal optical density may also be recorded on the plate using a uniformly diffuse beam. A circular aperture located after the diffuser results in a scatterer of circular symmetry whereas a rectangular aperture produces a pattern with preferred direction. The noise distribution of the scatterer can be adjusted by varying the relative intensities of the interfering beams. The exposed and processed material under test or when testing an optical system the projected or recorder image is scanned by a microphotometer the signals from which are passed through a  logarithmic converter and an electronic filter to a digital correlator. The electrical filter comprises a low pass section to restrict the bandwidth and  remove unwanted high frequency noise, and a high pass section to remove very low frequency variations e.g. due to cloudiness of the plate. The auto-correlation function is then used to derive the Fourier transform which is identical to the Wien spectrum from which the MTF can be determined. Alternatively the output of the microphotometer can be subjected to frequency analysis to determine the MTF. A second scan across the image or record of the comparison zone can be used to compensate for the inherent noise (grain) in the plate used to produce the scatterer. The incoherent light source used is preferably white but suitable filters can be placed in front of the microphotometer to restrict measurements to a particular part of the spectrum.
Patent GB-410295-A (GB)
Title: Improvements in or relating to roller grinding mills
IPC: B02C4/18
Filed: 1933-03-06
Abstract: 410,295. Roller - and - breast mills. BARRETT, A. E., 8, Taunton Avenue, West Wimbledon, London, and DAVEY, PAXMAN, & CO. (COLCHESTER), Ltd., Standard Ironworks, Colchester, Essex. March 6, 1933, No. 6783. [Class 59.] In a roller-and-breast grinding-mill comprising two grinding bars e, f arranged closely adjacent one another in contact with the roller b, in order to enable the bars to deal independently and simultaneously with separate quantities of the material to be ground, passages k, j, h are formed in the bars e, f and in an extension c of the feeding-hopper a through which material passes to the grinding face of the bar f, while material also passes direct from the bottom of the hopper beneath the bar e and into a recess g in the bar e. To enable one collecting-tray to serve for both bars, the bar f is made of less width than the bar e so that ground material flowing from the ends of the recess g passes the ends of the bar f. The bars are slidably and detachably mounted in the extension c, being adjustable by screws l, m having lock-nuts o, and are retained in position by clamps p screwed to the extension c. In a modification, a spring-pressed, slotted scraper-blade is disposed between the bars to prevent material ground by the bar c being carried by the roller beneath the bar f.
Patent GB-814115-A (GB)
Title: Improvements in or relating to electrical switching circuits employing transistors
IPC: H03K17/62
Filed: 1957-03-01
Abstract: 814,115. Transistor switching circuits. STANDARD TELEPHONES & CABLES Ltd. March 1, 1957 [March 6, 1956], No. 6868/57. Class 40 (6). [Also in Groups XXXVIII and XXXIX] Two or more digits are used to select an outlet in a transistor coincidence network. Several or all the emitters in the stage dealing with the first digit are connected together and each collector in this first stage is connected to a group of emitters in the next stage. The collectors of all the transistors in the final stage are each connected over a load resistance to a fixed potential. Each of the ten transistors 1-0 in the first stage, Fig. 1, is in series with a set of ten transistors in the second stage. The current in the load RL is very low except when the associated pair of terminals in the inlets 1 and 2 is marked. In a binary system, Fig. 2 (not shown), the collector of each transistor is connected to the emitters of two transistors in the succeeding stage. A two-out-of-five code, Fig. 3 (not shown) is also described.
Patent GB-525896-A (GB)
Title: Improvements in and relating to hand trolleys or trucks for laundry or other purposes
IPC: B62B3/06
Filed: 1939-03-02
Abstract: 525,896. Hand trucks &c. EDWARDS, A. T. and BAKER PERKINS, Ltd. March 2, 1939, No. 6895. [Class 108 (i)] A truck for transporting wet clothes or other articles for laundry or other purposes comprises a wheeled container having resilient or counterpoise means to raise or lower the general level of the contents according to decrease or increase in load. This imposes less strain on workers. In one form, Fig. 1, a wheeled truck 5 has a container 7 pivoted at 8 and pressed upwards by springs 9 in tubes 10 pivoted at one end at 11 to the truck frame and at the other to the container. To facilitate loading, a bridge piece 12 is pivoted on the axle 8. A rest 14 holds the member 12 when not in use. In another form, Fig. 3, a rectangular container 15 is suspended by four tension springs 18 enclosed in telescopic tubes 19 as the corners of the truck preferably attached to hanger brackets 20 fitted to the bottom of the container 15. The upper ends of the springs are secured to cross rails 21 of the truck. Othen than resilient means may be employed for mounting the container such as counterweights or pneumatic means which elevate the load in proportion to the reduction in weight.
Patent GB-1428327-A (GB)
Title: Bicycle support attachment
IPC: B62H1/00
Filed: 1974-02-15
Abstract: 1428327 Bicycle-supporting pedal attachments E E FOSTER 15 Feb 1974 [26 Feb 1973 3 Oct 1973] 6942/74 Heading B7J A support attachment for a pedal bicycle comprises a rigid stand-forming member 13 secured to a pedal 7 and rotatable therewith to the bicycle supporting position shown, the centre of gravity of the combined pedal and attachment being offset from the rotational axis of the pedal axle 6 so that member 13 is biased towards the bicycle supporting position. When the bicycle is in use, the rider's foot engages surface t of the pedal 7 to rotate the pedal out of the supporting position against the bias which is enhanced by a counterweight 30. The member 13 shown is formed from sheet stock bent to provide a side plate 15 diverging to a base edge 21 and a front plate 14 which is secured to the pedal axle 6 by a U-shaped bracket 31. Alternatively, the stand-forming member may be formed from a single continuous length of rod stock bent to an appropriate configuration and secured, for example, to a racing cycle pedal.
Patent GB-286651-A (GB)
Title: Scissors
IPC: B26B13/04
Filed: 1928-03-06
Abstract: 286,651. Parker, M. March 7, 1927, [Convention date]. Scissors.-The shanks 1 of scissors have removable blades or cutting edges 7 formed from a flexible strip of material. A beading 3 is formed on the operative edge of each shank 1 on which the blade strip, which is correspondingly grooved at 8, Fig. 6, is slidable longitudinally. The blade strips are manufactured from strip material of triangular section by passing it, hot or annealed, through one or two sets of rolls and through dies 27, Fig. 25. The dies 27, which have preferably a bell-mouthed entrance 29 and may be water-cooled, chill, harden and planish the strip. As the strip is of small cross-sectional area it is fed downwards, rather than horizontally, through the rolls. A modified form of blade strip is shown in Fig. 31.
Patent GB-939938-A (GB)
Title: Improvements in or relating to activated earths
Inventor: NEUMANN BARBARA SUSAN
IPC: B01J20/12
Filed: 1960-02-29
Abstract: An acid-activatable raw earth in the form of granules or nodules having a moisture content of 5 to 45% by weight is stabilized and activated by contacting it with from 4 to 13 milli-equivalents acid per grame of raw earth of either HCl of at least 20% w/w concentration or H2SO4 of at least 40% w/w concentration, digesting the mixture at above 85 DEG C., then diluting the mixture so that in the liquid phase the concentration of Clof SO4- is less than 13% or less than 25% respectively, and then digesting the diluted mixture above 85 DEG C., the digestion being terminated before the SiO2:Al2O3 ratio in the earth exceeds 16:1. Preferably when HCl is used its concentration should not exceed 30% w/w.  When H2SO4 is used its concentration should preferably not exceed 70% w/w.  It is desirable that the initial digestion is conducted at a temperature of at least 90 DEG C. and the digestion of the diluted mixture is conducted at the boiling point of the liquid phase.  The initial digestion usually ranges from 30 minutes to 5 hours.  In a modification the raw earth can be treated in pelleted form, having an initial moisture content of 20 to 45% by weight.  Examples of the raw earths which can be treated are montmorillonite, beidellite, illite and nontronite, and also impure clays containing these, such as those commonly known as sub-bentonites.  In carrying out the process each digestion step is effected by continuously recirculating the acid through a bed of the earth granules or nodules, and the dilution step is effected by introducing water into the recirculating acid.  The stabilized activated product can be employed for the adsorption of unsaturated compounds from toluene.  The term "acidactivatable raw earth" means aluminous triple layer clay minerals and impure clays containing these.  Specification 939,937 is referred to.
Patent GB-180101-A (GB)
Title: A new or improved stair rod with invisible eyes
IPC: A47G27/06
Filed: 1921-03-05
Abstract: 180,101. Moorey, M. W. March 5, 1921. Stair-rods.-A flat or semicircular bar of metal a, with a flat back, is secured to a flat bar c, the ends b, b<1> of which are bent so as to stand away from the rod a and constitute ears for insertion into triangular eyes.
Patent GB-507790-A (GB)
Title: Improvements in or relating to oscillating electric fans
IPC: F04D25/10
Filed: 1938-03-07
Abstract: 507,790. Screw fans. GENERAL ELECTRIC CO., Ltd., and WARD, L. G. March 7,1938, No. 7150. [Class 110 (i)] A table fan 2 is oscillated in a horizontal plane about a spindle 11 bearing in a block 10 by a bar 15 driven by reduction gearing on the motor spindle 13. Oscillation in a vertical plane about pivot pins 7 is produced by the gyroscopic action of the oscillation in the horizontal plane. A spring 9, or stops, restrict movement and wing nuts 8 may be tightened up to prevent movement in the vertical plane. Vertical oscillation may be provided mechanically and horizontal oscillation gyroscopically.
Patent GB-548924-A (GB)
Title: Improvements relating to automatic weighing and like machines
IPC: G01G21/00
Filed: 1941-06-07
Abstract: 548,924. Shoots. SOUTHALL & SMITH, Ltd., and PARTRIDGE, R. B. June 7, 1941. No. 7223. [Class 78 (i)] [Also in Group XVIII] Mechanism for feeding granular or like material to the weigh pan or pans of an automatic weighing or like machine comprises a supply hopper having an outlet at its lower end, a pivoted or slidable shoot situated in an inclined position beneath the outlet, a rotary serrated roller engaging an abutment on the shoot for vibrating the same, and a shutter at the delivery end of the shoot adapted when moved to closed position not only to interrupt the delivery of material from the shoot but also to move the shoot into a position in which the abutment is clear of the serrated rollers. As applied to an automatic weighing machine wherein the main quantity of material is weighed in a weigh pan d and is then transferred to a second weigh pan c wherein the weight is completed, the material passes from a supply hopper e to an inclined pivoted shoot i vibrated by a serrated wheel o engaging a roller n on the shoot. When the requisite weight has entered the pan d the movement of the beam 6 causes a link mechanism q and arcurate shutter p pivoted on the fixed frame to close the outlet j of the vibrating shoot. The shutter in closing also lifts the shoot and rocks it clear of the serrated wheel o thereby arresting the vibration. The auxiliary feed to the second pan c after the transfer from the pan d is effected by a slidable shoot t vibrated longitudinally by a serrated wheel y and supplied from the nozzle s of a second supply hopper f. When the change is completed an arcuate shutter 2 cuts off the feed and in doing so displaces the vibrating shoot from contact with its serrated wheel to arrest the flow of material.
Patent GB-323422-A (GB)
Title: Improvements in controlling arrangements for the pneumatic operation of automatic machines for feeding and shaping molten or plastic glass
IPC: C03B9/40
Filed: 1929-03-06
Abstract: 323,422. Pearson, T. F. March 6, 1929. Controlling air supply.-A timing-device, for controlling The supply of air to the different operating-parts of an automatic glassworking machine, comprises a rotating sleeve valve adapted to control the flow of air through ports in a cylinder, and a number of masking- sleeves which are arranged between the rotary sleeve and cylinder and can be displaced angularly in order to vary the phase relationship between the passage of aid through the different ports. A worm 1<a>, secured to a driving-shaft 1, rotates the sleeve valve 3 which is contained within, and is coaxial with, a cylinder 16. The sleeve valve 3 has an axial bore 4 that forms a passage leading to a main exhaust port 5, and also has a number of radial passages 6-9 that communicate with pipe connections 10-13, respectively, fitted in the wall of the cylinder. The valve 3 also has a longitudinal passage 14 in permanent connection with an air inlet 15 to the cylinder 16. Radial passages 17, 18, 19 lead from the passage 14 to pipe connections 20, 21, 22, respectively. A number of sleeves 23-26, each having a. peripheral groove 28 and a radial passage therein, fit over the sleeve valve and fill the space between it and the cylinder. Each of the sleeves is formed with worm teeth which gear with a worm on a control spindle 31. These spindles are provided with. hand wheels, and by turning any individual sleeve, the radial passage in it will be displaced relatively to the corresponding radial passage in the valve 3. Thus the time of operation of a pneumatic device connected with any of pipes 10-13, 20-22 can be altered as desired.
Patent GB-1410292-A (GB)
Title: Apparatus for peeling the casing from sausage and for subsequently breaking the casing into fragments
IPC: A22C11/00
Filed: 1974-02-18
Abstract: 1410292 Peeling and breaking sausage casings RANGER TOOL CO INC 18 Feb 1974 [14 Sept 1973] 7276/74 Heading A2B Sausage casing peeling apparatus comprises peeling means and means for breaking up the casing after it has been removed from the sausages. A vacuum source produces an air flow indicated by arrows 25 which causes the meat-free casing 29 to pass round a first wheel 17 and a second wheel 35. Tension is applied to the casing by the circumferential speed of the wheel 35 being greater than that of the wheel 17, causing the casing to be broken into fragments F. The vacuum is maintained by pivoted flap valves 43, 45, a spring-loaded shoe 46 and a seal 51, and the wheels 17, 35 have perforations to allow air to flow through them. Air nozzles 63 remove the casing fragments F from the wheel 35, which are discharged to a receptacle or conveyor e.g. an air duct.
Patent GB-1183675-A (GB)
Title: Multi-Container Metal Extrusion Press.
IPC: B21C23/21
Filed: 1968-02-14
Abstract: 1,183,675. Extruding; piercing. KOBE STEEL Ltd. 14 Feb., 1968 [15 Feb., 1967], No. 7338/68. Headings B3H and B3P. A metal extrusion press has a series of containers 39a, 39b, 39c mounted on aturntable 32 which moves them successively to a cleaning and residue removing station B, billet loading station C and extruding station A. The extruding ram 7 is mounted on a crosshead 5 and driven by a cylinder assembly 2 connected by tie rods 3 to a backing frame 1. The ram 7 may be hollow so that a mandrel 21a, 21b can be passed through when the press is used to extrude tubes. The mandrels are mounted in a carrier 12 which is eccentrically journalled in the assembly 2 so that one mandrel is allowed to cool every alternate cycle. The extruding dies 29a, (29b), Fig. 2 (not shown), are mounted on a plate 23 which is intermittently rotated by an electric motor 26 to align one of the dies with the extrusion axis. A saw (31a) is advanced by a piston-cylinder assembly (31) to cut the extruded stock from the residue. The containers 39a, 39b, 39c are each mounted in a holder 37, 38 which has a cylinder 40 to move the container axially against the die before the extrusion. A roller conveyer 43 is fixed to the frame 1 and co-operates with roller conveyers 42a, 42b, 42c to support the extruded work. At station B the residue is removed by a plunger plate 47 and the walls of the container cleaned by brushes 47a. The container holders may be rotated during the cleaning and aligned parallel to the extrusion axis. After each extrusion the turntable is indexed 120 degrees so that the cleaned container can be loaded with a billet 53 and a pusher disc 54 at station C. The billet may be hollow and the disc annular when tubes are being extruded. At station A, after extrusion the residue is frictionally held in the container and retraction of the container 39a pulls the die 29a from the plate and the die is ejected from the press with the residue and the pusher disc 54. Alternatively the residue may be removed by the ram 7 and the station B used solely to clean the container. The turntable is preferably horizontal although it may be slightly inclined. Further the container may be cleaned and loaded at one station from opposite sides. In an alternate embodiment, Figs. 5 and 6 (not shown), five containers (66a), (66b), (66c), (66d), (66e), are secured to the turntable (60) and four preparatory stations (B), (C), (D), (E) arranged around the turntable. Stations (B), (C) remove the residue and clean the containers respectively and stations (D), (E) load the container and pierce the billet respectively. The container holders are pivoted by rack and pinion (64), (64a) to turn the container to the vertical at station (D) so that the billet can be loaded by a carrier (79). A piercing press (82), Fig. 6 (not shown), is provided at station (E) and has a stem (83) with a mandrel (84) and a back-up bar (85) for the container. A stem (86) is provided in the bar (85) to close the base of the container.
Patent GB-629687-A (GB)
Title: Improvements in or relating to the butt-welding of metal members by fusion and pressure
IPC: B23K5/02
Filed: 1947-03-17
Abstract: 629,687. Welding. SOC. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. March 17, 1947, No. 7353. Convention date, March 23, 1946. [Class 83 (iv)] In pressure-welding parts A, B, 1 to 10 mm. thick, the facing edges C are fused in a reducing oxyacetylene flame and butted, the flames initially passing between the parts and being partly retracted on butting to maintain the reducing action. A plurality of water-cooled burners C1, C2 are aligned with the joint and may be reciprocated to ensure uniform heating and mixing of the flames from the burner nozzles up to 3 mm. apart. The parts A, B are spaced from .5 to 3 mm., and may have bevelled edges. Pipes may be rotated during welding.
Patent GB-1186827-A (GB)
Title: Arrangement for laying material of cord-like form
Inventor: STEHMANN HANS-PETER
IPC: H02G11/02
Filed: 1968-02-15
Abstract: 1,186,827. Coiling ropes and rope like material. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 15 Feb., 1968 [18 Feb., 1967], No. 7454/68. Addition to 1,168,928. Heading D1T. This apparatus is substantially the same as that disclosed in Specification No. 1,168,928 except that as the material 1 runs of the lowermost supporting element 10, an additional treating force is applied to the material to assist its feed into the storage cask 12. This force may be provided by a pair of rollers between which the material passes. One of the rollers 26 may be driven by a pinion 28 meshing with a toothed rim 25 on the periphery of the stationary disc 8.
Patent GB-267962-A (GB)
Title: Improvements in fastenings specially applicable to wearing-apparel
IPC: A44B1/28
Filed: 1927-03-17
Abstract: 267,962. Hahn, P. March 17, 1926, [Convention date]. L a c e s ; sleevelinks; studs. - A fastening device specially applicable to wearing-apparel comprises a solid rubber lace having a disc-like member at one or both ends. The members may be alike or different and in one form Fig. 2, are made in two parts adapted to be sprung together and to hold between the parts a knot z<1> formed at the end of the lace z. A slot Y is provided in one part in which a tool may be introduced to force the parts apart to secure the knot or to adjust the length of the lace. If the lace is made short the device may be as in Fig. 3, and adapted for use as a button or sleeve-link. The Specification as open to inspection under Sect. 91 (3) (a) comprises also Figs. 5 (Cancelled), 6, (Cancelled), and 7 (Cancelled), the application of such devices to the fastening of footwear. In the first case, Fig. 5 (Cancelled), the shoe is slit at each side and an elastic lace z is threaded through the eyelets o<1>, o<2>, one disclike member 25 serving as a stop to the lace and the other k<1> being secured in a buttonhole p in the shoe-strap 26. A short lace z with disc-like members at each end is looped over a button 28 on the strap 26 in Fig. 6 (Cancelled). In Fig. 7 (Cancelled), the shoe is slit at s' to one side of the shoe and a single lace z with a disc-like member 25 at the lower end is used, the upper end of the lace being attached to a disc-like member which is located within the shoe, or three short laces each provided with two disclike members and connecting corresponding eyelets o<1>, o<2> may be used. This subject-matter does not appear in the Specification as accepted.