baber/WOPTO huggingface dataset:
Patent GB-1373831-A (GB)
Title: Apparatus for heating thermoplastic filaments
IPC: D02J13/00
Filed: 1972-01-28
Abstract: 1373831 Heating strands BARMAG BAR MER MASCHINENFABRIK AG 28 Jan 1972 [28 Jan 1971] 4037/72 Heading D1F [Also in Division B5] An apparatus for heating thermoplastic filaments, especially suitable for use in false-twist crimping machines or false-twist crimping and stretching machines, comprises a heating box closed on substantially all sides with an associated heating system using heating air in the vicinity of a wall of which box contact plates for the filaments are arranged in such a manner that the plates may be heated by the said heating system, heat-insulating bodies being arranged between the individual contact plates and means for forcibly circulating the heating air being provided within the heating box. Thus in Figure 1, a closed heating box 1 containing preferably air as heat-transfer medium and made of material of high thermal conductivity, has contact plates 2a, 2b, 2c on its outside, separated by hollow heat insulating bodies 4. Contact plates 2a, 2b and 2c are provided with grooves 5a and 5b which enable two filaments to travel over one contact plate, or one filament to be passed twice over the plate, on the "up-and-down" principle. A contact plate and reversing element adapted for this purpose is shown in Figure 4 (not reproduced). The heating of the box is controlled by temperature detector 80 and temperature regulator 81, connected to electrical heating means. Figure 2 shows two further forms. On the left-hand side, contact plate 9 is made with a wide base 8 to improve heat transfer from the box; additional heating elements 23 and 24 may be provided and the space between successive heat insulating bodies 18 is filled with an insert 19 of heat-insulating material, arranged as a door pivoting about pin 21. On the righthand side, the wall 1 of the box has a window 11 which engages the base 13 of the plate 12, which is thus heated primarily through direct contact between the base 13 and the heat-transfer medium in the interior 3 of the box, additional heat flowing through flanges 15 and 16. Figure 3 shows a contact plate 26 so shaped as to protrude into the interior of box 1 and fitted with ribs 35 and 36 to improve heat transfer; 38 is a thermocouple and 39 an electrical heating element. Figure 5 (not shown) illustrates two embodiments of this form of apparatus, adapted to "up-and-down" operation. Figures 8 and 9 (not shown) illustrates modified forms of the contact plates of Figures 2 and 3, in association with a self-threading single filament trap (104) (Figure 8) or double trap (113) (Figure 9). Figure 10 shows a contact plate 124 provided with a separating gap 125 to suppress heat flow between halves 127 and 128; this is useful when processing a single filament in "up-anddown" operation. Figure 11 (not reproduced) shows a modified form of the plate of Figure 10 in which heat supply ribs (142) are disposed on the base surface (140) of the plate.
Patent GB-1013623-A (GB)
Title: Improvements in or relating to digital data stores
Inventor: ASHTON JOHN ALFRED
IPC: G11C17/02
Filed: 1963-01-31
Abstract: 1,013,623. Digital data stores. DECCA Ltd. Jan. 15, 1964 [Jan. 31, 1963], No. 4074/63. Heading G4A. A word is written into a magnetic core matrix 1 by simultaneously applying partial pulses to one of a plurality of word wires 7 and to one addressing wire 6 coupled to those cores required to produce the output word, and is read out through sense wires 9 by applying a pulse from a generator 5. The partial pulses may each be of amplitude ¢I or each of amplitude <SP>2</SP>/ 3 I together with a bias pulse of - <SP>1</SP>/ 3 I from generator 5. To compensate for noise, cancellation cores 2 are provided with the sense wires 9 linking them with as many turns as they link matrix cores 1.
Patent GB-1387564-A (GB)
Title: Method and apparatus for scrubbing gases
IPC: B05B14/46
Filed: 1971-02-05
Abstract: 1387564 Gas scrubber MIDLAND FAN CO Ltd 5 May 1972 [5 Feb 1971] 4086/71 Heading B1R A gas scrubber comprises a liquid reservoir 5, dirty gas inlet 12 clean gas outlet 13 and a wall structure comprising (a) a deflector assembly 7 with a curved deflector 16 and (b) a sub-chamber 8 having parallel plates 9, 10 at its base, the space between the liquid surface and the parallel plates 9, 10 forming a passageway through which the gas passes through the apparatus as a primary stream, the space between plates 9 and 10 acting as a nozzle system through which a secondary gas stream, preferably clean gas, is injected into the primary stream in a direction towards the liquid surface and at an angle inclined to the vertical. The nozzle system may be a slit or a series of nozzles. The secondary gas enters sub-chambers 8 at inlet 11. The gas stream draws a film of liquid up deflector 16 where it discharges across the passageway from the upper edge of the deflector 16.
Patent GB-267099-A (GB)
Title: Improvements in method of and means for securing exchangeable cutters in the u-shaped grooves of weaver's rods or pile wires or rods
IPC: D03J3/00
Filed: 1927-02-14
Abstract: 267,099. Schlemper, C. [Firm of]. March 8, 1926, [Convention date]. Pile-fabric looms; weavers' tools.-To secure in position the interchangeable cutter d, which fits in the U-shaped sheet steel channel b of a weaver's rule or pile rod a, a part i of the cutter purposely left soft is pressed out by a stamping-member g on pincers f. The member g enters a hole h in one limb of the channel b, and forces the part i into a hole in the second limb. To remove the cutter, the part i is flattened out by means of a second pair of pincers, which may have an upper pro. jection at the upper end of the jaw, so that they may be used for withdrawing the cutter. The pointed end of the cutter d fits into a corner of the inclined termination of the channel b, the limbs of which are connected at c by point welding &c.
Patent GB-800183-A (GB)
Title: Photographic halftone processes, prescreened photographic silver halide material andmethods of making such material
IPC: G03F5/00
Filed: 1955-02-11
Abstract: 800,183. Prescreened photographic silver halide material and screening processes. KODAK, Ltd. Feb. 11, 1955 [Feb. 12, 1954], No. 4096/55. Drawings to Specification. Class 98(2) The material has an undulating screen pattern in latent density which can be faded to an extent of at least 70 per cent as result of exposure, development and measurement methods defined in the Specification. In a preferred form of the invention an emulsion layer which is hightly susceptible to the Herschel effect, a test for which is provided and for preparation of which Specifications 655,274 and 667,206 are quoted, is exposed to short wavelength radiation such as blue light through a halftone or contact screen to provide a long scale prescreened material. In a second form such emulsion layer is uniformly fogged and then exposed to long wavelength radiation through the screen, and in either form a long wavelength exposure to a continuous tone image and development produces a direct positive halftone image; this second form may, however, tend to produce a "pesterized" picture, as explained in Specification 699,659, with three tones only as of white, grey and black when printed on to high contrast material. In another form the uniformly fogged material is prescreened by exposure through two-colour screen of halftone dots in which the dot centres transmit blue and the dot corners yellow or red so that blue light transmitted by the centres enhances the latent density while yellow light transmitted by the corners produces a fading of the latent density. The screening process is not actually prescreening but follows the procedure of this as described above, thus the material susceptible to the Herschel effect may be (a) exposed to a continuous tone image as by blue light and then exposed through a half-tone screen as by red or yellow light to produce a half-tone negative from a continuous tone positive image, or (b) uniformly fogged as by blue light, exposed to a continuous tone image as by red or yellow light, and then exposed similarly through a half-tone screen by red or yellow light to produce a halftones positive from a continuous tone positive image. An extensive theoretical and mathematical anaylsis of the exposure effects of the invention is provided in the Specification.
Patent GB-466675-A (GB)
Title: Copper alloys
IPC: C22C9/00
Filed: 1936-02-11
Abstract: Selenium is added to copper or copper alloys for the purpose of improving machinability.  The amount of selenium may be 0,01-4 per cent, preferably 0,25-1 per cent.  Other elements may be present of such nature and in such quantity as not to cause separation of the selenium from the molten alloy, for example one or more of the following in specified proportions or ranges of proportions: nickel, zinc, tin, silicon, manganese, iron, aluminium, and cadmium.  The presence of antimony, silver, phosphorus, magnesium, calcium, and zirconium is also referred to.
Patent GB-245621-A (GB)
Title: Improvements in fabrics and the art of producing the same
IPC: D04B1/18
Filed: 1925-02-16
Abstract: 245,621. Dehn, F. B., (Kendrick Co., Inc., J. R.). Feb. 16, 1925. Edges, treating.-An elastic or other fabric for use in the manufacture of abdominal supporters, surgical appliances, wearing-apparel, corsets, &c., comprises rows of knitted loops such as 17 - -19, filling strands such as 7 - - 9, which may be covered with strips of rubber, and a line of overedge stitches 26 enclosing a supplemental filling strand 27. A rib fabric is knitted in the ordinary way, but near the top a course 20 of heavy yarn is put in without a filling strand, and a few courses of lighter yarn with one more filling strand 10. A line of elastic stitches 25 is then sewn by machine along the course 20, the filling strangs 9, 10 serving as guides, and the fabric is then unravelled down to the course 20. The stitches 25 stop further unravelling. The line of overedge stitches 26 enclosing the supplemental strand 27 is then sewn on the fabric.
Patent GB-556855-A (GB)
Title: Synchronisation of alternating current sources particularly applicable to common wavelength broadcasting systems
IPC: H03L7/06
Filed: 1942-03-31
Abstract: 556,855. Automatic control systems for alternating current sources; phase changing. CALVERT, R. March 31, 1942, No. 4307. [Classes 38 (ii) and 38 (iv)] [Also in Group XXXVI] Oscillation frequency.-A source of oscillation is maintained in synchronism with a master oscillation by using two pairs of modulators essentially comprising rectifying means. The outputs from the modulators control in appropriate sense the frequency or phase or both of the controlled oscillation. The master oscillation may be fed to a transformer T1 with secondary windings e1 ... e4, respectively in series with rectifiers and condensers X1, C1 ... X4, C4. The controlled oscillation is fed to a transformer having secondary windings f1, f3. The condensers C1, C2 are connected in series in the grid circuit of a valve V1 and condensers C3, C4 similarly connected to a valve V2. The anode circuits of the valves include respectively relays A1, A2. The valves are normally biased to cut off by a voltage applied at 6. The modulators are poled as indicated and the normal vector relations of the voltages in the modulator circuits are indicated in Fig. 7. In these conditions no voltage appears between G and either P or Q. If the controlled oscillation begins to lead the master oscillation as indicated by the arrow in Fig. 7 P becomes positive to G and Q negative thereto the opposite change occurs with a lag. Thus the relays A1, A2 are selectively actuated to introduce into the circuit of the controlled oscillation a predetermined appropriate phase change # and to change the frequency of the oscillator by a predetermined amount when the relative phase of the oscillations has changed (substantially) by the angle #. Rapid fluctuations of the output voltages are ineffective due to smoothing condensers C. Static phase shifting circuits capable of a progressive change of the phase angle in either sense are controlled by the relays. Standard Post Office rotary line switches may be connected to resistances in resistance-condenser circuits and racked round by the relays. The relays also control a reversible motor adjusting a tuning element to change the frequency of the controlled oscillator. The Specification contains a full description of the arrangements. The Provisional Specification describes also an arrangement employing only two modulators and has relays which operate in a different order according to the sense of deviation ; this subject-matter is not claimed.
Patent GB-285253-A (GB)
Title: Improvements in variable throw cranks for pedal cycles
IPC: B62M3/04
Filed: 1927-02-16
Abstract: 285,253. Endersen, J. Feb. 16, 1927. Cranks, variable-throw. - In a variable throw cycle crank, the pedal arm is pivoted to the end of a link freely swung on the shaft and is provided with a lateral lug or the like engaging a co-operating projection or recess on a member secured to the shaft, being constrained to take up a position of minimum throw by a spring in compression interposed between the shaft and the pedal arm or the link. In the form shown in Fig. 1, the pedal. arm 6 is pivoted at 7 to a link 5 freely mounted on or adjacent to the boss 22 of a member 1 secured to the shaft 2, a lug 4 on the member 1 and a spring 14 being interposed between other lugs or extensions 12, 15 of these members. When pressure is applied to the crank, the link 5 moves on the shaft and the lug 10 rocks or trips on the lug 4 until the thrust is taken up by the spring, The spring is carried by a rod 13 pivoted to the extension 12 and passing through an adjustable sleeve 16 screwed into the lug 15, the compression being regulated by lock nuts 17, whilst the crank position may be regulated by adjustment of the sleeve. The outer end of the link 5 is carried by a flanged bearing sleeve 18, screwed on to a boss on the arm 6 and locked by a screw stud 20; the inner end is carried by a similar sleeve 21, screwed on to the boss 22 of the member 1. In a modification, Fig. 12, the spring 29 is arranged within a casing 27 secured to the shaft and bears against a facing 30 on the intermediate link 26 to the outer end of which the pedal arm 24 is pivoted at 25 as in the previous form. The. link 26 is freely mounted on a flanged sleeve screwed on to an inner hub 40 of the casing and passes through an enlarged gap in the casing wall, being normally pressed by the spring 29 against an adjustable stop 36. A lug 34 on the pedal arm engages a recess 35 in the casing periphery, rocking therein when pressure is applied to the pedal and causing the link 26 to move within the casing until the thrust is taken up by compression of the spring. The bearing sleeve screwed on to the hub 40 is flanged to hold in place a cover plate for the casing. The minimum crank radius is regulated by adjustment of the screw stop 36 whilst the spring compression may be regulated by the screw 31.
Patent GB-108823-A (GB)
Title: Improvements in Knives.
Inventor: PAULSON SWEN
IPC: B26B1/04
Filed: 1917-03-26
Abstract: 108,823. Paulson, S. March 26, 1917. Pocket, pen, and like knives. -The handle comprises a strip of spring steel which is doubled upon itself at 5 so that the side-plates 3, which are of channel section, tend to spring apart. When a portion 10 of one of the scales is turned into the position shown in Fig. 2, the enlarged head 9 of a rivet 7 slips into a recess 11 in the part 10 and allows the plates 3 to spring apart so that the blade 1 can be turned from its closed or open position. When the part 10 is in its normal position, the head 9 of the rivet engages a recess 12
Patent GB-632152-A (GB)
Title: Improvements in or relating to the sterilization of liquid foodstuffs
IPC: A23L3/22
Filed: 1946-02-12
Abstract: In sterilizing liquid foods, e.g., tomato, grape, orange, or lemon juice, milk, skimmed milk, coffee cream, whipped cream, the liquid is passed through an externally heated conduit at a speed exceeding the critical velocity and the temperature of the liquid is rapidly raised as it passes through the first part of the conduit to a degree sufficient to inactivate the oxidases, and thereupon the temperature is slowly raised or maintained for a short time to effect sterilization of the liquid.  The liquid is for example heated to above 80 DEG C within 5 sec. and then maintained at this temperature for not more than 30 sec. or heated less rapidly to a higher temperature.  Heating of the conduit may be by electric current through a wire coiled round the conduit, the pitch of the coil being smaller on the first part of the conduit than on the remainder, or by the controlled passage of steam through jackets round the conduit, more steam being passed through the first jacket than through the subsequent jacket or jackets.
Patent GB-187176-A (GB)
Title: Metallic-vapour lamp
IPC: H01J13/10
Filed: 1922-02-14
Abstract: 187,176. Eversheim, P. Feb. 14, 1922. Addition to 166,144. No Patent granted (Sealing fee not paid). Closures completed by outstanding packing rings; screw mechanism above closure.-In the metallicvapour electric lamp described in the parent Specification, the closing-means for the quartz tube a, comprises an aluminium or soft-iron cap d having sharp tapered edges d<1> against which a rubber ring e is forced by compression between the flanges of metal sleeves r, r<1> which are pressed together by a screw r'. Asbestos rings r<5> are arranged above and below the rubber ring e.
Patent GB-1071262-A (GB)
Title: Improvements in or relating to racks shelving and the like
Inventor: ROBSON JAMES
IPC: A47B57/42
Filed: 1963-02-02
Abstract: 1,071,262. Shelf brackets. DEPENDABLE PRODUCTS Ltd. Jan. 17, 1964 [Feb. 2, 1963], No. 4360/63. Heading A4B. A shelving upright of channel section and provided with slots 11 to receive the lugs (13) of shelf brackets (12) has in the channel an insert 14 secured by spot welding and forming channels or grooves 17, 18 to receive the lugs of the brackets and prevent lateral movement. Two uprights may be positioned face to face to form an upright of rectangular cross-section with a similar sectioned insert.
Patent GB-1213782-A (GB)
Title: Varnish solutions
Inventor: BENDSZUZ OTTO
IPC: C08L67/06
Filed: 1969-01-27
Abstract: 1,213,782. Coatings. FARBENFABRIKEN BAYER A.G. 27 Jan., 1969 [5 April, 1968], No. 4451/69. Heading B2E. [Also in Division C3] Substrates are coated by curing on them a solven-free polyester varnish solution having a thixotropicity #F of at least 10% which contains 0.001 to 0.5% by weight referred to the varnish solution of a liquid organopolysiloxane incompatible therewith. In the Examples wood plates are coated by the active primer process or by spraying.
Patent GB-548296-A (GB)
Title: Improvements relating to unidirectional electrical inductive apparatus
IPC: H01H71/32
Filed: 1941-04-03
Abstract: 548,296. Converting; inductances. BRITISH THOMSON-HOUSTON CO., Ltd. April 3, 1941, No. 4473. Convention date, April 3, 1940. [Class 38 (ii)] [Also in Group XXXVII] In an electroresponsive device of the general character set out in Specification 266,359, [Class 38 (ii)], and applicable to the excess-current protection of A.C. systems by circuit-breakers of the flux-shifting type in which a unidirectional current impulse flows in the releasing winding or conductor, regardless of the instantaneous direction of the alternating-current the polarizing flux is obtained from permanent magnets which are preferably of the alloy described in Specifications 423,897 and 424,746, [both in Group 11], thereby avoiding the provision and maintenance of D.C. sources in remote circuit-breaker locating. The brakes-tipping device which is similar to that of Specification 500,472, [Group XXXVII], comprises a permanent magnet 17, preferably of the abovementioned alloy, maintaining the armature 20 in attracted position by means of laminated soft-iron poles 18, 19, the flux 17<SP>1</SP> through which is adapted to be reduced by flux set up in a core 23 of similar alloy which is spaced at its ends from the poles 18, 19 and traversed by a unidirectional flux due to current in coil 22. The latter is connected in series with windings 33, 34 on cores 24, 25 which are normally magnetized above the knee of the B-H curve by permanent magnets 28, 29 in the directions shown. Oppositelywound primaries 31, 32 connected to a line currenttransformer 30 are arranged so as to oppose and assist, respectively, the saturating fluxes due to the permanent magnets 28, 29, the arrangement being that normally the decrease in flux in one core is balanced by the increase in the other core and no material resultant appears in coil 22. On excess-current, however, the decrease of flux in one core carries the resultant below the knee of the B-H curve whereas increase in the other core is small due to saturation, and the resultant e.m.f. in winding 33 to 34 is sufficient to produce tripping, Figs. 2 and 3 (not shown). Since in each half-cycle of the A.C. there is always a resultant flux decrease, the induced e.m.f. is always unidirectional. Additional limbs are provided on the cores 24, 25 to provide a return path for the winding- fluxes, but since these limbs would normally be saturated by the permanent-magnet flux and hence of high reluctances, they have air gaps 26, 27 which are preferably adjustable for controlling the degree of saturation.
Patent GB-154105-A (GB)
Title: An improved hauling-in hook
IPC: F16B45/02
Filed: 1920-02-13
Abstract: 154,105. L³thi, J. A. Feb. 13, 1920. Hooks, closed.-A hook for harness, ship's rigging, lifting loads, &c., has a hauling-in lever b, Fig. 3, pivoted at c below the lowest point of the bight y of the hook. The arm b<1> of the lever is resilient, and has a projection m which snaps into a hole or recess n in the bifurcated casing a, when closed. In a modification, the arm b' is locked at its end by snapping behind a projection or into a recess in the casing. In a double hook, Fig. 1, the casing a has a section of S-shape, Fig. 2, and the arms b<1> of the lever b are sprung over the casing into the channels f, g.
Patent GB-104247-A (GB)
Title: Improvements in and connected with Radiator Guards for Motor Road Vehicles.
Inventor: BERRAGE-MOULTON DOLLY
IPC: B60R19/52
Filed: 1916-03-27
Abstract: 104,247. Moulton, D. Berrage-. March 27, 1916. Safety appliances for motor-vehicles.-A radiator guard comprises a frame 1 hinged to brackets 3 and supported by struts 6, which pass through eyes 8 and are provided with buffer springs 12.