baber/WOPTO huggingface dataset:
Patent GB-695788-A (GB)
Title: A method of preparing electrodes for capacitors
IPC: H01G4/008
Filed: 1950-01-17
Abstract: Silver, prepared by mixing silver nitrate or oxide with water and glycerine or polyhydroxy alcohols such as glycol, heating, separating and drying, is mixed with a lacquer made from polymethyl methacrylate and/or polystyrene in acetone, amyl acetate and benzene-toluene mixtures.  The paste may be used in printed circuits or for capacitor electrodes.ALSO:Silver paste is prepared by mixing silver nitrate with water and glycerine and the solution heated to effect reduction to silver, the silver allowed to settle, separated from glycerine, dried and mixed with a lacquer.  Silver oxide may be employed instead of silver nitrate, and polyhydroxy alcohols such as glycol instead of glycerine.
Patent GB-912168-A (GB)
Title: Method of manufacturing printing plates
Inventor: ARMELIN EDOUARD
IPC: G03F7/24
Filed: 1958-01-13
Abstract: 912,168. Photographic processes; distorted photographs; cylindrical mirror mounts. CHAMBON Ltd. Jan. 13, 1959 [Jan. 13, 1958], No. 1242/58. Classes 97 (1), 98 (1) and 98 (2). In a method for manufacturing a printing plate to be mounted on a printing cylinder of a rotary printing machine by illuminating an original, focusing light rays from the original on light-sensitive material to form a copy of the original and making a printing plate from the said copy, the light rays from the original to the light-sensitive material are caused to undergo reflection in a cylindrical mirror of sheet material and of variable curvature to produce distortion of one dimension of the image of the original focused on the light-sensitive material relative to the other dimension of the said image, and the degree of curvature of the mirror is adjusted by flexing it to produce substantially exactly the degree of distortion required to counteract the stretching of the printing surface of the plate when the plate is mounted on the printing cylinder. In order to minimise unwanted distortions, a second cylindrical mirror similar to the first may be introduced in the path of the rays, having its sense and degree of curvature adjusted so as to counteract in part only the distortion produced by the other mirror. The or each mirror may be placed either in the path of rays between the original and the focusing lens, in which case the lens and photo-sensitive material may be mounted in a camera, or between the light-sensitive material and the lens, in which case the lens and original may be mounted in an enlarger. The transverse cross-section of the or each mirror may be arranged to be a true arc of a circle, or may be arranged to increase towards the side edges thereof. A form of apparatus suitable for use in the aforesaid method is shown in Fig. 1 in which a stand A supports a table B for either the original or the photosensitive material, and a rectangular mirror- and-frame assembly C is formed by a pair of parallel side-bars 9, connected together at their outer ends by two tie-bars 10. The side bars are pivotally mounted at the end of two arms 8 so that the inclination of the mirror frame may be adjusted by a hand wheel 12, through a train of gears and worms 13, 14, 16 and 17. The mirror 20, comprising for example a sheet of polished copper or silvered perspex, is supported within the frame by means of two slotted mirror flexing bars 21, which are pivotally mounted at each end of the side bars 9. At the centre of each flexing bar are a pair of brackets 22 holding a pivoted collar 23. A shaft 24 is rotatably mounted, but axially fixed by rings 26, in the lower collar 22, and is in screw-threaded engagement with the base of the other collar 23. Rotation of this shaft by turning a handle 25 therefore alters the angle at which brackets 22 are tilted towards each other, and thus also the curvature of the mirror 20.
Patent GB-606397-A (GB)
Title: Improvements relating to the production of peat fuel briquettes
IPC: C10F5/04
Filed: 1946-01-14
Abstract: 606,397. Apparatus for making peat fuel briquettes. BERENDS, J. Jan. 14, 1946, No. 1274. [Class 87(ii)] Peat is extruded by a worm 24 from a casing 13 through a tapered casing part 22 and down a shoot 14, cut into lengths by circular saws 15, and passes on boards 16 under a vertically-reciprocating guillotine 19 which cuts the lengths into briquettes. Water squeezed out of the peat drains through holes 30 in the casing into a trough (not shown) and through slits in the shoot. The saws 15 extend completely through the shoot. The guillotine comprises a knife 38 carried by parallel links 39 and moved up and down by a crank 40 and connecting rod 41. The links are carried by a headpiece 44 having stems 45 which slide against the action of coiled springs 47. As the peat moves forward during the cutting stroke of the knife, the knife assembly moves forward until the knife rises out of the peat, whereupon the springs return the knife to its original position. To ensure that the knife does return to its initial position, the springs are supplemented by pushers 48, pivoted at 49 and operated by an eccentric pin 52, which engage flanges 54 on the stems 45. As the peat travels down the shoot it may be impressed with wording by one or more embossing drums extending through an opening in the shoot. Such a drum may incorporate an adding machine, and may have spikes which enter the peat and by which the drum is positively rotated by the peat. The drum, thus driven, may drive the guillotine, which would thus make transverse cuts in accordance with the rate of feed of the peat. The apparatus may be in the form of a transportable plant.
Patent GB-157362-A (GB)
Title: Improvements in runner-wheel for water-turbines or screw-pumps for unelastic fluids
IPC: F03B3/12
Filed: 1921-01-10
Abstract: 157,362. Kaplan, V. Aug. 12, 1919, [Convention date]. Drawings to Specification. Impeller blades.-The total blade area in a screw pump with guide blades is not greater than one third of the area of the circle described by a point in a blade edge. The axial depth of the blades may decrease towards their free ends. Specification 17588/14 is referred to.
Patent GB-318912-A (GB)
Title: Improvements in actuating mechanism for reciprocating pumps
IPC: F02M59/14
Filed: 1929-01-14
Abstract: 318,912. A. C. Spark Plug Co., (Assignees of Zubaty, J.). Sept. 12, 1928, [Convention date]. Cam-, lever-, and spring-actuated pumps; diaphragm pumps.-A fuel pump comprises a reciprocating diaphragm &c. 13 connected by a rod 30 to a lost-motion link 31 pivoted to a rocking lever 18, 19. The motion stroke is effected by the linkage 18, 19, 31, and the delivery stroke by a spring 23. If the pressure in the pump increases so that the spring cannot return the diaphragm on the delivery stroke, lost motion occurs between the lever 18 and link 31. Abutting surfaces 42, 42<1> and 43, 43<1> between the link 31 and the lever 18 and rod 30 respectively cause the link to act as a rigid extension of the lever in normal operation. Specification 274,421 is referred to.
Patent GB-196084-A (GB)
Title: Improvements in or relating to burnishing rolls
IPC: A43D95/08
Filed: 1922-01-16
Abstract: 196,084. British United Shoe Machinery Co., Ltd., and Barclay, F. R. Jan. 16, 1922. Tools.-A roll for burnishing boots and shoes comprises an assemblage of stout leather or other flaps, adapted to exercise a beating-action on the work, mounted upon a hub with provision for allowing relative rotation between the hub and the flaps, the drive of the flaps occurring through the frictional grip exerted between the hub and the flaps due to centrifugal action. A conical roll for burnishing &c. heel breasts is shown in Fig. 1 and comprises flaps 1 arranged radially around a hub 2 without substantial pressure one against another. The flaps are segmental in cross-section and have projecting portions 6 over which loosely engage flanges 5 on the hub. Under the action of centrifugal force, the portion 6 engage the flanges; too great a pressure between the roll and the work stops the flaps, the hub rotating therein. The flaps may be slashed as at 10, Fig. 3 and may have sewn to them on each side a skived strip 4 of thinner leather. The flaps may be of other forms for treating other parts of the boot or shoe and may be cut radially as shown in Fig. 8. Specifications 30542/97. 6325/03, and 6170/11, [Class 17 (i), Boots and shoes, Apparatus for making &c.], are referred to.
Patent GB-667594-A (GB)
Title: Centrifugal bowl filter
IPC: B04B1/20
Filed: 1950-01-18
Abstract: 667,594. Centrifugal separators. TRIGGS, W. W. (Bird Machine Co.). Jan. 18, 1950. No. 1326/50. Class 23 In a centrifugal filter for separating fine particles from liquids comprising a rotatable bowl 10 having a helical conveyer 18 therein which rotates at a different rate from the bowl, the inner wall of the bowl has anchorage means such as strips 51 to retain a predetermined depth of particles thereon and the blades 36 forming the working surfaces of the conveyer are smooth to prevent adherence of the particles thereto. The bowl 20 is geared to a belt-driven sheave 31 and the conveyer is driven by a motor 37. As shown, the bowl comprises cylindrical sections 20a, 20c with a frusto-conical section 20b therebetween and the conveyer comprises cylindrical parts 39, 40 and a conical baffle 41. The slurry enters through a pipe 16, is deflected by the baffle 41 and passes into the bowl through ports having inserts 42. The ports are disposed in a curved path about the part 39. The strips 51 are formed by grooves, cast integral with the bowl or welded thereto. The strips are rectangular in cross-section and of a height approximating to that of the largest particles. The particles are carried along' the bowl and discharged to a chamber 43 whilst the liquid flows over a weir 45 to a chamber 44. In a modification the filter has a cylindrical bowl with non-co-extending strips, a disc shaped baffle and conveyer blades which get progressively smaller and helically configurated towards the chamber 43. In a further modification the bowl is conical.
Patent GB-192688-A (GB)
Title: Improvements in cooling chambers for internal combustion engines
IPC: F02B3/06
Filed: 1923-01-16
Abstract: 192,688. Krupp Akt.-Ges. Germaniawerft, F. Jan. 31,1922, [Convention date]. Cylinders, cooling.-A chamber D through which water circulates is of approximately the same diameter as the cylinder, and is suspended from the cover C. It is deep enough to protect the flange a<1>.
Patent GB-1207501-A (GB)
Title: Improvements relating to cleaning apparatus for carding machines
Inventor: MACKIE ARTHUR PATRICK PRINGLE
IPC: D01G15/80
Filed: 1967-01-11
Abstract: 1,207,501. Removing burrs from burr trough. JAMES MACKIE & SONS Ltd. 2 Jan., 1968 [11 Jan., 1967], No. 1481/67. Heading D1N. A mechanism for cleaning a burr trough for a carding machine consists of a number of cleaning blades 2 spaced along the trough 1 and connected to a common reciprocating drive 4, 5. Each blade operates along only part of the trough and when moving in one direction (to the right in the Figures) is in an operative position whereas when it moves in the other direction it is engaged by rail 11 and held in an inoperative position. The rails 11 are of wear-resistant, synthetic elastomer with end portions 12 which flex. When moving .to the right the rail extends through an opening 13 in the blade and the end portion flexes upwardly as the blade passes beyond it. In the return direction the blade is engaged by end portion 12 and pivots about 3 to engage the rail 11 and be held in an inoperative position.
Patent GB-228329-A (GB)
Title: Improvements in or connected with cutting machines for mining coal and other minerals
IPC: E21C31/10
Filed: 1924-01-19
Abstract: 228,329. Mavor & Coulson, Ltd., and Mavor, S. M. Jan. 19, 1924. Ratchet gearing.-In a coal &c. cutting machine friction gearing is provided for transmitting power from the machine motor so as to cause the cutter arm A to turn angularly in either direction about its sluing axis. The friction gearing comprises driving pawls C, C<1> which can be made to engage frictionally with a wheel B and are carried by a rocking frame 4 which is oscillated by a connecting-rod 5 engaging a crank 6 driven by the motor. Pawls D, D' carried on the structure of the machine are provided to act as stops to prevent counter-rotation and a mask E is mounted concentrically with the wheel B so that in one extreme position one pair of pawls C, D are allowed to engage the wheel C for rotation in one direction, and in the other extreme position the pawls C', D<1>, engage the wheel for rotation in the opposite direction, intermediate positions allowing the wheel to be rotated at speeds varying from zero to maximum. The pawls C - - D<1> are each formed with a peripheral portion concentric with the wheel B and with an angular portion of wedge-shape having side faces of helical formation engaging a channel in the wheel B. Specification 213,715, [Class 68 (i), Excavating earth &c.], is referred to.
Patent GB-1032102-A (GB)
Title: Shaped members coated with pyrolitic graphite
IPC: C01B31/00
Filed: 1963-01-14
Abstract: Carbon, graphite, or refractory metal articles are coated with pyrolytic graphite by radiation or induction heating the articles in a furnace in which a gaseous hydrocarbon atmosphere is pyrolysed so as to form an adherent, continuous homogenous layer of pyrolytic graphite on the articles.  The gaseous hydrocarbon atmosphere may consist of pure methane or a mixture of methane and hydrogen or of methane and nitrogen.  The articles are heated to 1600-2200 DEG C in a gaseous hydrocarbon atmosphere having a pressure of 2-20 mm. Hg. The articles may be machined bars of natural or electro-graphite having helices cut across them; carbon threads or fabrics obtained by the carbonization of cotton or viscose threads or fabrics; stamped refractory metal sheet; refractory metal block formed from pre-wound or pre-formed threads or wires, the refractory metal being Mo or Ta; a discharge tube grid having a Mo or Zr base and cage of Mo wires.ALSO:Carbon, graphite, or refractory metal articles are coated with pyrolytic graphite by heating the articles by radiation or induction heating in a furnace in which a gaseous hydrocarbon atmosphere is pyrolysed so as to form an adherent, continuous, homogeneous layer of pyrolytic graphite on the articles.  The gaseous hydrocarbon atmosphere may consist of pure methane or a mixture of methane and hydrogen or of methane and nitrogen.  The articles are heated to 1600-2200 DEG  C. in a gaseous hydrocarbon atmosphere having a pressure of 2-20 mm. Hg. The articles may be machined bars of natural or electro-graphite having helices cut across them: carbon threads or fabrics obtained by the carbonization of cotton or viscose threads or fabrics; stamped refractory metal sheet; refractory metal block formed from pre-wound or preformed threads or wires, the refractory metal being Mo or Ta; a discharge tube grid having a Mo or Zr base and cage of Mo wires.
Patent GB-821570-A (GB)
Title: Improvements in roof coverings
IPC: E04D3/35
Filed: 1957-01-16
Abstract: 821,570. Roofing elements; roofs. BJORK, J. H. Jan. 16, 1957 [Jan. 21, 1956], No. 1593/57. Classes 20(4) and 87(1) In a roof covering comprising interlocking rows of plates, each plate 1 comprises a substantially flat body portion with an outwardly directed projection 7 along its upper edge portion and a complementary inwardly directed projection 6 along its lower edge portion, and an aluminium sheet 8 covering the outer surface of the body portion and the projections 6, 7. The body portion may be a continuous board or wood fibre slab or it may comprise spaced strips 12 connected by corrugated sheet-iron ties 13. The projections are in the form of dovetails or tongues and grooves. At one side edge of the plate the aluminium sheet 8 has a tapeziumshaped projection 11 for overlapping the adjacent plate. Ventilation holes 9 are provided in the body portion. The upper edge portion of each plate is nailed at 10 to the rafters 2 and supporting wedges 16 may be inserted between the plates and the rafters. The lower side of the rafters are cowered with heat-insulating material 3.
Patent GB-1108101-A (GB)
Title: Locomotive
Inventor: WAINWRIGHT RALPH
IPC: B61C13/04
Filed: 1965-01-14
Abstract: 1,108,101. Locomotives. QUALTER, HALL & CO. (SALES) Ltd. 5 Jan., 1966 [14 Jan., 1965], No. 1711/65. Heading B7L. A two-rail locomotive for use in mines, comprises a body 2 and at least two driving or braking wheels 11, 12 engaging the webs 18 of I-section rails 1, running wheels 3 engaging the flanges of the I-section rails 1 which are spaced horizontally or vertically (not shown), to support the locomotive below the rails 1 or above (not shown), each driving wheel 11, 12 being mounted between pairs of plates 13, 14 pivoted to pairs of link arms 15, 16 pivoted to lugs on the body 1 so as to be arcuately displaceable relative to the body 1 to alter the pressure exerted by the driving wheels outwardly, or inwardly (not shown), on the rails in response to the tractive effort exerted by the locomotive on the track via the driving wheels. At least one of the link arms 15, 16 has a slidable pivot pin (not shown) and spring loading means to bias the driving wheel towards the rails. In one embodiment (Fig. 3, only shown), the driving wheels 11, 12 are staggered and reaction wheels 9, 10 are provided; in another embodiment, the driving wheels are directly opposite each other. The driving wheels 11, 12 are driven via gearing, telescopic shafts 20 and further gearing from a shaft driven via an hydraulic transmission by a diesel engine. A driver control cab is provided. A brake may be applied to the driving wheels and/or to the transmission.
Patent GB-161328-A (GB)
Title: Improvements in and relating to grapples
IPC: B66C1/34
Filed: 1920-01-20
Abstract: 161,328. Gilmartin, W. M. Jan. 20, 1920. Hooks, closed and automatic-release.- A grapple comprises an inverted U-shaped body 1, Fig. 1, of channelsection, the outer end of the arms being bifurcated at 4 and shaped, to provide substantially horizontal abutments 15 to engage abutments 14 on the upper edges of pivotally-mounted swinging jaws 12 to hold them against movement beyond t h e i r closed position, the jaws having ends adapted to contact with one another or to assume a lapped relation when the, jaws are closed. The grapple is connected to hoisting-machinery &c. by a loop 7 pivoted by a pin 8 to a. swivel pin 6 secured in the body 1 by a head 9 countersunk in a washer 10. To lock. the jaws in their closed position, spring-pressed pins 17 are used. To prevent locking, the pins 17 are withdrawn and turned so as to move projections 18, Fig. 8, out of alignment with reduced portions 19 of keyholes 20. The jaws shown are automaticallyattaching jaws, but these may be replaced by automatically-detaching jaws having heavy outer portions. Specification 18367/11 [Class 78 (iv) Loading &c.], is referred to.
Patent GB-970671-A (GB)
Title: Machine and method for determining the contour of railway track
IPC: E01B27/17
Filed: 1962-01-18
Abstract: 970,671. Track correction apparatus. RAILWAY MAINTENANCE CORPORATION. Jan. 18, 1962 [April 20, 1961], No. 1854/62. Heading B7N. A machine for determining the position of low points on a railway track comprises a vehicle 15 coupled to a second vehicle 21, a beam 20 pivotally attached at one end to vehicle 15, which extends parallel to the track and is supported at its other end by vehicle 21 and a cable 22 which is attached by means of a screwed bolt 81 to the free end of the beam and extends over a pulley mounted on a post 37 attached to vehicle 15 to a spring-loaded indicating drum 90. When wheel 26 of vehicle 15 approaches a low point on the track, the clockwise movement of post 37 and anticlockwise movement of beam 20 reduces the distance between the bolt 81 and the pulley and the indicating drum revolves to indicate the low point. The indicator reading may be recorded or used, as shown, to control track lifting and packing apparatus 17, 18 and 19 mounted on vehicle 15. Two beams 20 may be used, each beam extending parallel to one of the rails R.
Patent GB-741671-A (GB)
Title: Bottom loop for men's braces
Inventor: LILLIE ANTHONY ERNEST
IPC: A41F3/02
Filed: 1953-01-22
Abstract: 741,671. Braces for personal wear. STEEL & BUSKS, Ltd. Jan. 22, 1954 [Jan. 22, 1953]. No. 1874/53. Class 141. In a brace loop 1, the upper cross-bar 4 is formed with a rounded lower edge to prevent wear on the webbing passing through the slot 2. The edge may be formed by bending up the tongue 9 cut out to form the slot 2 or by bending down and around the lower edge a tongue extending from the upper edge of the loop.
Patent GB-489286-A (GB)
Title: Improvements in or relating to refrigerant evaporators and method of operating said evaporators
IPC: F25B39/02
Filed: 1937-01-22
Abstract: 489,286. Refrigerating. STEVENS, A. H. (Peerless Ice Machine Co., and Nash- Kelvinator Corporation) Jan. 22, 1937, No. 1944. [Classes 29 and 64 (iii)] Evaporators.-A refrigerant evaporator comprises two sinuous finned tubes 9, the bends of which project through slots in supporting plates 12, and which are connected to the ends of a supply manifold 7 and to a common vapour outlet pipe 8, the tubes being provided with spiral baffles leaving a central clear passage having, e.g. an area not greater than half the internal sectional area of the tubes. The baffles impart a whirling motion to the refrigerant and maintain a liquid film on the inside of the tubes. The refrigerant is circulated through the tubes at a velocity of from 250 to 5000 feet per minute.
Patent GB-977751-A (GB)
Title: A servo system of magnetic video recorders and the like
IPC: H04N5/94
Filed: 1963-01-16
Abstract: 977,751. Automatic frequency control. SONY CORPORATION. Jan. 16, 1963 [Jan. 26, 1962], No. 1969/63. Heading H3A. [Also in Division G3] A servo system for control of the speed of operation of an electrically operated member, e.g. the speed of operation of a motor M driving a magnetic recording head (not shown) comprises a source of reference pulsed signals A which are applied as one input to an astable multivibrator C, a detector D which provides pulse signals B having a frequency proportional to the speed of operation of the motor M which are applied as a second input to the multivibrator, low pass filter means (not shown) for extracting the D.C. component of the multivibrator output signal which is used to control the frequency of an oscillator O supplying an output to drive the motor. The astable multivibrator has a natural frequency which is lower than the system frequency and is switched to its first state by the reference signals and to its second state by the detected signals. Any variation from the synchronized condition varies the multivibrator pulse width and hence the D.C. control voltage. In the absence of a reference pulse the multivibrator naturally switches to its first state after a slight delay thus preventing a large change in the D.C. output of the circuit.
Patent GB-700841-A (GB)
Title: Improvements relating to coffin handles
IPC: A61G17/04
Filed: 1952-01-25
Abstract: 700,841. Handles. COOP, F. Dec. 4, 1952 [Jan. 25, 1952], No. 2056/52. Class 52(1) [Also in Group XVII] A rope loop handle A with its ends adhesively secured in a socket B is attached by metal fastenings E internally roughened where they encircle the rope to provide a positive grip relieving the socket joint from strain. The fastenings may be hook or U-bolts, on which the screw threads provide the roughened surface, or staples with clenched-over ends may be used. The socket is preferably applied dry and adhe-- sive subsequently injected through a rear opening therein.