baber/WOPTO huggingface dataset:
Patent GB-552795-A (GB)
Title: Improvements in or relating to hot water heating systems
IPC: F24D3/04
Filed: 1942-02-20
Abstract: 552,795. Heating buildings. KOCH, E. A. J. Feb. 20, 1942, No. 2305. [Class 64 (ii)] In a hot-water heating system having two or more boilers a, b arranged in series flow, the temperature of the outlet water of the last boiler b is maintained constant, and the inlet temperature is varied by regulating the quantity of water supplied from the return pump d through a pipe e by-passing the first boiler a.
Patent GB-595266-A (GB)
Title: Improvements relating to nut anchors
IPC: F16B37/04
Filed: 1945-01-30
Abstract: 595,266. Anchor nuts. TINNERMAN PRODUCTS, Inc. Jan. 30, 1945, No. 2352. Convention date, June 27, 1944. [Class 89 (i)] A nut anchor is made from a single piece of resilient sheet material, preferably spring steel, and comprises a base with upstanding parts for preventing rotation of the nut and further upstanding parts for yieldingly holding the nut to its support in such manner that the nut can be removed and replaced without detaching the anchor. The anchor 10 has a central opening to pass the nut and V-notched parts 12 slit and bent up from the base to engage opposed corners of the nut. Holes 11 provide for riveting &c. the anchor to its support. Side wings 14 bent up from the base converge inwards and are slotted so that the lower edges of the outwardly flared edges 15 of the wings form shoulders for engaging the crowning of a nut, adjacent a cylindrical extension a<1> thereof, to hold it upon the support. The nut may be engaged by pincers above the parts 12 and prised from between the wings that can open for this purpose and may be replaced by manual pressure from above. The centre parts of the wing edges are outwardly offset. In a modification, the V -parts 12 are formed without slitting from an upwardly dished part of the base.
Patent GB-240350-A (GB)
Title: Improvements in drying gases for the synthesis of ammonia
IPC: C01B3/02
Filed: 1925-01-28
Abstract: 240,350. Synthetic Ammonia & Nitrates, Ltd., Slade, R. E., and Parke, V. E. Jan. 28, 1925. Drawings to Specification. Hydrogen; nitrogen.-Hydrogen or nitrogen or a mixture thereof is dried by cooling to a temperature below 0‹ C. in presence of a small amount of ammonia. Specification 215,789 is referred to.
Patent GB-1218192-A (GB)
Title: Recording and erasing head for an electro-mechanical memory drum
IPC: B07C3/00
Filed: 1969-01-15
Abstract: 1,218,192. Mechanical store. SAUNIER DUVAL. 15 Jan., 1969 [19 Jan., 1968], No. 2503/69. Heading G4B. A recording and erasing head for an electromechanical memory drum using balls, for use in sorting machines or selection conveyers, comprises a stripper 12 for removing balls from the drum, a zig-zag passage 11 in which the balls are stored, and a discharge opening 13 through which balls are reinserted in the drum by electromechanical means. The balls roll down the passage one at a time (without being jammed in contact) under gravity and are ejected from 13 by arm 7 which is energized by the armature 4 of an electromagnet 3. In one embcdiment the passage walls 8 and 9 are each formed of two parallel, spaced, plates and the balls run down a groove defined by the two edges thereof. Alternatively the balls run in a single groove provided by a single plate 8 and a single plate 9. The inclination of the passage is of the order of 6 degrees.
Patent GB-995199-A (GB)
Title: Improvements relating to the formation and transference of photographic images
IPC: C08F4/28
Filed: 1962-01-23
Abstract: 995,199. Photopolymerizable materials and processes. E. I. DU PONT DE NEMOURS & CO. Jan. 23,1962 [Feb. 2,196l1, No. 2516/62. Heading G2C. A silver image transfer polymerization process comprises subjecting a silver image which is in image transfer relationship with a layer containing an ethylenically unsaturated compound containing at least one terminal ethylenic group to the action of a peroxygen compound so that a polymeric image is formed in the layer. The non- polymerized areas may be removed by washing. The silver image may in a separate layer e.g. an exposed developed and fixed silver halide emulsion, or it may be produced by exposure and development of a silver halide emulsion which either contains the ethylenically unsaturated compound or is adjacent to layer containing the ethylerically unsaturated compound (cf. also Specification 995, 201). The peroxy compound, such as a persalphate a perborate or peroxide, may be in either the silver halide emulsion layer or the polymerizable layer or in the transfer fluid. The ethylenically unsaturated compound may be an acrylate of ethyene, glycol or other polyols, an acrylamide a vinyl ester, an acrylate salt or an unsaturated aldehyde. Alternatively the compound may be a colour coupler such as o-methacrylamidophenol or 1-phenyl-e methacrylamidepyrazolidene which leaves a coloured image after washoff. If a colour coupler is not used, a pigment such as carbon black or Monastral Green is added to the layer containing the unsaturated compound. Specifications 741,296, 741,441, 786,119, 807, 948, 815, 277, 825, 795, 843, 238, 850, 453, 883,558, 909,700 and 935,267 also are referred to.
Patent GB-1459928-A (GB)
Title: Visibility meter
IPC: G01S17/95
Filed: 1974-01-18
Abstract: 1459928 Visibility meter SATT ELEKTRONIK AB 18 Jan 1974 [18 Jan 1973] 02545/74 Heading G1A A visibility meter comprises a transmitter, S, with light diode 1 transmitting beam T, photodiode 3 receiving light B reflected from T by the atmosphere and, from light diode 2, reference beam I modulated out of phase with T, discriminator 21, giving signals dependent on the ratio of the light intensities received to servo unit 24, controlling drive unit 14 to alter the intensity of I to restore the ratio of these intensities to a predetermined value, photo-diodes 31, 32 measuring the intensities of beams I and T so that instrument 35 gives an indication of visibility dependent on the ratio of those intensities. Beam I passes through optical system 8, glass window 6, mirrors or prisms 9, 10 glass window 7 and optical system 11. Frequency determining drive oscillator 12 drives light diodes 1, 2 via modulator 17 feeding drive units 13, 14 in anti-phase. The signals from photodiode 3 are applied via amplifier 19 to discriminator 21, receiving reference frequency signal from modulator 17 and giving signals on terminals 22, 23 related to the phases of the oscillations of the respective light sources, so that their character depends on the amplitude ratio of B and I. Servo unit 24 may be mechanical or electronic. Balance circuit 33 measures the respective intensities on diodes 31, 32 and circuit 34 provides a signal proportional to their ratios.
Patent GB-292633-A (GB)
Title: Shot-gun barrels with perforated walls
IPC: F41A21/28
Filed: 1927-03-18
Abstract: 292,633. Kholodovsky, N. March 18, 1927. No Patent granted (Sealing fee not paid). Barrels; recoil, modifying.-Relates to shot guns in which the barrel or barrels are perforated near the muzzle, and consists in reinforcing the barrel by making the wall of the barrel thicker where the holes are situated than the thickness of the unperforated part of the barrel. The escape of the gases through the holes, in conjunction with the thickening of the walls, has the effect of reducing vibration near the muzzle, diminishing recoil, and obviating the harmful effect of the gases on the shot and wad. As shown, the holes 3 in the barrels 1, 2 are elongated and arranged in checkered formation substantially symmetrically above and below the axes of the barrels, while the sides of the barrel are unperforated.
Patent GB-538685-A (GB)
Title: Piston ring structure
IPC: F16J9/06
Filed: 1940-02-12
Abstract: 538,685. Piston rings. PERFECT CIRCLE CO. Feb. 12, 1940, No. 2675. Convention date, Feb. 18, 1939. [Class 122 (i)] A piston ring comprises a pair of thin split rings 9, 10, engaging opposite sides of the piston groove, and a thin spring ribbon expander 11 having parts 13 with parallel edges to space the rings apart, curved parts 12 engaging the bottom of the groove, and parts 14 engaging the inner edges of the rings to force them outwardly. The expander ends 17 also space the rings apart and each end is shaped to project into the gap of one ring, so that the rings are prevented from relative movement. Recesses 25 permit oil scraped from the cylinder wall to pass to drain openings in the piston. In a modification, the expander is of polygonal form with sides formed by rounded parts, the width of the expander being uniform and the spacer members pressed out to form openings for oil drainage.
Patent GB-1131466-A (GB)
Title: Position digitizer apparatus
IPC: H03M1/00
Filed: 1966-01-20
Abstract: 1,131,466. Selective signalling. W. J. MILAN-KAMSKI. 20 Jan., 1966, No. 2675/66. Heading G4H. In a shaft position digitizer, Fig. 1, an outer track comprising a pattern of magnetizable material on a disc of non-magnetizable material is sensed by two groups of series connected heads 15, 16 so arranged as to produce quadrature outputs, Fig. 5, which pass through 32 complete cycles for one revolution of the disc, two inner tracks are each sensed by an arcuate head 17, 18 also arranged to produce quadrature outputs but passing through one complete cycle for one revolution of the disc, each pair of quadrature signals is digitized to seven bits by conventional self-balancing techniques using potentials, shown dotted on Fig. 5, produced by additional windings on the heads as reference potentials, and the resulting two 7- bit numbers, which have an overlap of two bits, are combined, the bits derived from the outer track being used to correct the bits derived from the inner track, to produce a 12-bit representation of the position of the disc. Each head (Figs. 2a and 2b, not shown) comprises an E-shaped core having an input winding on the centre limb and three output windings on each of the outer limbs, two pairs of these windings being connected in series adding to provide the two reference potentials and the remaining two windings (one on each outer limb) being connected in series-opposition to provide the data output signal which varies linearly, as shown in Fig. 5, with the disc position.
Patent GB-1092232-A (GB)
Title: Improvements relating to an apparatus for drawing off, measuring, coiling and cutting threads
Inventor: ROEVER MARTIN
IPC: B65H63/08
Filed: 1966-01-20
Abstract: 1,092,232. Balling and measuring thread. FARBENFABRIKEN BAYER A.G. Jan. 20, 1966 [Jan. 23, 1965], No. 2699/66. Addition to 920,817. Headings D1F and D1J. In apparatus for successively drawing off, measuring and coiling a thread (a modification of the denier-determining apparatus of the parent specification) a running thread 7 enters a housing 5 through a suction opening 1 (or a tubular insert providing such opening) passes through the nip between separable driving and measuring rollers 2 and 3, past a hot-wire cutter 4 against which it is pushed by a rod 12 when a measured length is to be started or detached, into a suction nozzle 6, thence through a bore 15 and tangentially into a coiling chamber 8 provided with air outlet bores 17 and a pivoted, resiliently mounted cover 14. The thread is formed into a ball which is ejected from the chamber by a jet of compressed air delivered through a nozzle 11. The use of a rotating plunger in the chamber 8, as described in the parent specification, is obviated.
Patent GB-535278-A (GB)
Title: Improvements in and relating to wood stave pipes
IPC: E03F3/04
Filed: 1940-02-13
Abstract: 535,278. Wooden pipes. MACPHERSON H. N. Feb. 13, 1940, No. 2722. [Class 99(ii)] Oval pipes are made of wood staves 1 formed with inter-engaging semi-circular tongues and grooves 5 and bound together by bands 11 spaced along the pipe. Shoulders 4 are preferably provided at each side of the tongues and grooves, and the inner shoulders of a stave are inclined at a greater angle to each other than the outer shoulders, so that the inner shoulders abut at the top and bottom parts of the pipe, which are of smaller radius, and the outer shoulders abut at the sides. The bands 11 are tightened by means of bolts 12, which are arranged at points midway between the ends of the horizontal and vertical ends of the pipe.
Patent GB-1382161-A (GB)
Title: Method for the chemical purification of sewage
IPC: C02F1/52
Filed: 1972-01-20
Abstract: 1382161 Purifying sewage NORM AMC AG 20 Jan 1972 [21 Jan 1971] 2743/72 Heading C1C In a process for purifying sewage, e.g. removing phosphates, the sewage together with a flocculating or precipitating agent from conduit 13, is passed through conduit 10 to mixing zone 5 of tank 1 containing gyroscopic mixer 11 and the mixture is passed downwardly through flocculation zone 6 by helical screw 14, to sedimentation zone 3 where the sludge settles out from the purified water which is discharged from clear water zone 8 over weir 15. Some sludge may be recycled from zone 3 to zone 5 through pipe 16 by the suction of mixer 11. Sludge may be periodically discharged from zone 3 under the control of photoelectric means. The tank 1 may be substantially cone- or pyramid-shaped.
Patent GB-1398672-A (GB)
Title: Rotatable display stand
Inventor: SUMNER JR T
IPC: A47F5/05
Filed: 1973-01-19
Abstract: 1398672 Rotatable stands; brackets MODERNA BUTIKSINREDNINGAR AB 19 Jan 1973 [8 Feb 1972] 2828/73 Headings A4B and A4H A display stand comprises a tubular post 6 rotatably mounted by a bearing 5 on a support 4, 1, and sector-shaped shelves 10, e.g. of wire removably mounted at several levels around the post 6, each shelf having an opposed pair of side walls 15, 17 and an end wall, the side walls 15, 17 having upper and lower edge wires 11, 12 joined by wire portions 13, 14 mounted on hooks 7, 8, 9 on post 6, each intermediate hook 8 receiving a portion 13 of a lower shelf and a portion 14 of the shelf immediately above. Adjacent shelves at the same level are held together by a wire hook 16 on side wall 15 of one shelf engaging with side wall 17 of the adjacent shelf.
Patent GB-154481-A (GB)
Title: An improved device for withdrawing engineers' keys
IPC: B25B27/04
Filed: 1920-01-29
Abstract: 154,481. Batty, F. Jan. 29, 1920. Key-extracting tools. -For withdrawing a key 10 from a keyway in a pulley 5, a pawl 8 is employed which is mounted in a frame 2 formed of metal plates connected by bolts 3. The pawl is made to engage with the head of the key, and a cam-lever 15 mounted between the sides of frame 2 is operated to cause the pawl 8 to withdraw the key. The frame 3 is placed against the face of the pulley, and it is formed with a front projection 2 which rests on the shaft 6 during the withdrawal. In a modification, the cam-lever is arranged to be moved upwardly in order to actuate the pawl 8.
Patent GB-575302-A (GB)
Title: An articulated metal clasp or belt fastener, for the joining or unien of transmission belts
IPC: F16G3/02
Filed: 1944-02-16
Abstract: 575,302. Belt fastenings. LINHART, .J. H. Feb. 16, 1944, No. 2850. [Class 80 (i)] Relates to fasteners of the type comprising metal blanks bent into a U-shape and having a number of slots across its width to form a number of curved arms separated by the slots, the arms of one part engaging the slots of the other to form a socket for a hinge pin, one end of each component part having prongs which pass through the belt and through holes in the other part. According to the invention, the slots in one component part are in alignment with the prongs, and prongs on the other part are in alignment with the curved arms between the slots. The. components, of steel plate, are formed with equidistant equal and parallel slots 2<1> determined by the loops or arms 2. The teeth or claws 3, Fig. 2, on one part are in alignment with the slots 2<1>, and on the other part, Fig. 1, are in alignment with the arms 2, as shown in the assembled fastener in Fig. 6, with the hinge pin 10. In both components the claws 3 extend from a transverse reinforcing strip 1<1>. The ends of the bent-over tongues 3 pass through holes 4, the parts 6 of the plates adjacent such holes being formed as depressions.
Patent GB-563690-A (GB)
Title: Improvements in or relating to methods of securing wires to metal surfaces
IPC: H01R43/02
Filed: 1943-02-22
Abstract: 563,690. Electric couplings. STANDARD TELEPHONES & CABLES, Ltd., WOLFSON, H., and SHEPARD, S. C. Feb. 22, 1943, No. 2880. [Class 38 (i)] [Also in Group XXII] In securing a wire to a metal surface, the wire is sealed through a metal cup with fusible metal contained therein and the cup is then attached to the surface by melting the fusible metal so as to alloy with the surface. Wires may then be attached to metallic layers on piezoelectric crystals, on the dielectric sheets of condenser plates, or on the surfaces of resistance elements in block form or to sheet metal boxes acting as electrostatic screens for electrical apparatus. Objects may also be similarly attached to suspension wires. The end of the wire 4 is threaded through a hole in the side or base of a copper or other sheet metal cup 6 of circular or other form and provided with a flange 8 and solder or like fusible metal is melted into the cup up to the level of the flange so as to alloy with the wire and cup. The cup with wire attached is united' to the surface by placing the flange thereon and applying a soldering iron or other heater to melt the solder so that it alloys with the surface. The flange may be shaped to fit a convex or concave surface. The end of the wire may be crimped, knurled or otherwise deformed to strengthen the joint.
Patent GB-1046711-A (GB)
Title: Transistor inductor
IPC: H03H11/48
Filed: 1965-01-22
Abstract: 1,046,711. Transistor reactance circuits; automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. Jan. 22, 1965 [Jan. 24, 1964], No. 2890/65. Headings H3R and H4K. A transistor circuit, Fig. 1, simulates an inductor having high A.C. impedance but low resistance between the input 50 and ground. A PNP transistor 51 is normally forwardly biased by potentiometers 53-55, 56-58 when the input 50 is at a desired potential, the collector output being applied to a grounded emitter NPN transistor 52 whose collector is directly connected back to the input 50 which is also capacitively coupled at 54 to the base of transistor 51. The capacitor 54 may be variable to vary the inductor effect and the circuit shows positive or negative A.C. input impedance dependent on the relative value of resistor 55. A D.C. or low-frequency input at 50 is unaffected by the capacitor 54, is amplified by both transistors and increases or decreases correspondingly the conductivity of transistor 52 shunting the input so that the input impedance is low. Such an inductor circuit 61, Fig. 2 (not shown), may be used in the telephone system described in Specification 953,895 to provide a low resistance path to earth for the battery B1 via the constant current source 66, diode network 62 and diode 72. The secondary of the repeat coil 65, terminating the subscriber's line 60, is in this case capacitively coupled at 68 to the network 62 and thus the previous need for completing the D.C. holding path for the network 62 through the repeat coil secondary is avoided. The diodes 71, 72 together form a gate which is opened when a call involving subscriber line 60 is to be made.
Patent GB-1114061-A (GB)
Title: Improvements in or relating to plastic compound treatments
Inventor: PRATT GEORGE CHRISTOPHER
IPC: C08L27/18
Filed: 1966-01-21
Abstract: A bearing material includes polytetrafluoroethylene or polytetrafluoroethylene compound distributed in a matrix at least a minor proportion by volume of which polytetrafluoroethylene or compound has been recovered by being broken up into small particles after having been made fibrous by mechanical working. P.T.F.E. compound is P.T.F.E. containing particles, granules or fibres of fillers or reinforcement.  The proportion of recovered P.T.F.E. to virgin P.T.F.E. may be about one part in three by volume, virgin P.T.F.E. being P.T.F.E. which has not been made fibrous by mechanical working.  The fibres may be broken up by grinding ina mill.  The grinding may be carried out in the presence of water.  The P.T.F.E. compound may include lead or a lead compound. The P.T.F.E. or compound may be impregnated in a metal matrix, or may be in a plastics matrix which has polymerized around it.
Patent GB-554030-A (GB)
Title: Multipoint recorder-controller embodying an electrical amplifier
Filed: 1942-03-05
Abstract: 554,030. Temperature recording systems. STEGHART, F. L. March 5, 1942, No. 2901. [Class 40 (i)] [Also in Groups XIX and XL] Apparatus for recording a number of physical magnitudes is provided with means for interrupting the records either by a space or by a deviation in such a way as to make the records distinguishable from each other. Three thermocouples 1 used for temperature measurement are connected in succession by a distributer 2, which is driven step-by step by a continuously running shaft 4, to a self balancing potentiometer controlling the deflection of a recording pen 10 held against the paper by a bar 12. The bar is lifted to disengage the pen by a solenoid 11 each time contacts 9 are operated at the change-over from one thermocouple to the next and also each time contacts 15 are operated by a code wheel 14 which is continuously driven step-by-step and causes a characteristic appearance, corresponding to the effective thermocouple, to be given to the respective parts of the trace. The potentiometer comprises a cold-junction compensator 18 and a mirror-galvanometer 16 which reflects light on to a photo-cell 20 controlling the current in a gas-filled tube 22, the voltage drop in anode resistor 17 opposing the thermocouple voltage. In a modification, the contacts 15 are in series with another pair of cam-operated contacts operating at a higher frequency than the cam 7 or switch 2 and shortcircuiting a part of the bridge of the cold junction compensation 18. This gives a, onesided deviation in an otherwise continuous record. In another modification, the contacts 15 are connected to an oscillator which superimposes an E.M.F. on to the circuit of the moving coil 26 so as to cause a marking on both sides of the line.
Patent GB-570789-A (GB)
Title: Improvements in books
IPC: B42D9/00
Filed: 1944-02-16
Abstract: 570,789. Pattern books. LEYLAND PAINT & VARNISH CO., Ltd., and LEWIS, R. C. Feb. 16,1944, No. 2911. [Class 3 (ii)] [Also in Group XV] A baseboard 1 having one group of leaves 2 attached thereto so as to be turned over in the normal way has an additional group 3 mounted on a fixed pin 5 at right angles to the hinge end of the leaves 2 so as to swivel in their own planes, the two groups of leaves when collapsed lying side-by-side within the area of the baseboard. The two groups may, for example, show samples of wallpaper or distemper finishes and paint or enamel finishes respectively, or one group may be used to write data thereon while the other group may have specific data printed thereon. In one form, the leaves 3 are pivoted about a post or rivet 5 which is in line with the hinge line of the leaves 2, but the post may be situated away from such line or at the other end of the board 1 so as to permit of interleaving a leaf 3 with the leaves 2. The board 1 may form part of a cover 7, 8 which can be suspended by cords passing through hole on rivets 6 securing the leaves 2.
Patent GB-108432-A (GB)
Title: Improvements in Book Posting Devices.
Inventor: VARLEY EDMUND
IPC: B41L7/00
Filed: 1917-02-28
Abstract: 108,432. Varley, E. Feb. 28, 1917. Blotting-appliances. - A book-posting device comprises two rotatable rollers 11, 12 carrying a strip of durable absorbent paper 20 by which ledger entries may be blotted, thus obtaining a facsimile of the entries on the reverse side of the paper. As shown in Fig. 2, the paper passes under a flat plate 6 having bent-up sides 7, between which the rollers are journalled. The rollers are rotated after each set of entries has been blotted, and their motion is controlled by the spring 16 engaging toothed wheels 14. Inks of different colours may be used for debit and credit entries.