baber/WOPTO huggingface dataset:
Patent GB-705978-A (GB)
Title: Improvements relating to variable load braking mechanism for railway and like vehicles
IPC: B60T8/18
Filed: 1952-02-13
Abstract: 705,978. Variable load brake mechanism. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and BRACKENBURY, A. G. Oct. 31, 1952 [Feb. 13, 1952], No. 3812/52. Class 103(1) In load variable automatically regulated braking' mechanism for railway and like vehicles, the brake force is applied to the shoes by an operating member 2 acting through a lever 1 upon a transmission rod 4. In the brakes released position shown in Fig. 1, the lever 1 rests upon a fixed stop 28 rigid with the fixed base plate 29. On an initial brake applying movement of member 2, the lever 1 moves off stop 28 and pivots about a movable pivot 20. The pivot 20 is connected by a link 6 to a fixed pivot 7 and by a link 18 to the common pivot 16 of toggle links 17, 18. Movement of pivot 16 to cause a braking thrust to be applied to pivot 20 as a result of strengthening of the toggle links is the result of two actions. On the one hand a braking force proportional to the tare weight of the vehicle applied through member 2 causes a link 9 to run a roller 24 down a cam slot 26 cut in the base plate 29 so as to cause a strengthening of the toggle 17, 18 in proportion to the force applied. On the other hand, the force applied to the pivot 38 of a weighing arm 33 by tension and compression members 36 and 37 respectively, which are stressed in proportion to the deflection of the vehicle springs causes arm 33 to be lifted from its rest position on stop 39 and pivot about pin 35 so as to cause a thrust to be applied through the links 17, 18 to the pivot 20. The total thrust applied to member 4 through pivot 20 and lever 1 is thus in part related to the tare weight of the vehicle and in part proportional to the load on the vehicle. Other embodiments are described.
Patent GB-539205-A (GB)
Title: Improvements in or relating to the lubrication of reciprocating parts of machinery
IPC: F01M9/10
Filed: 1940-02-29
Abstract: 539,205. Lubricating valves &c. BOWER, G. S. Feb. 29, 1940, No. 3821. [Classes 7 (ii) and 7 (vi)] [Also in Group XXVI] In means for lubricating reciprocating parts of machinery where the element concerned traverses a hole or port through which lubricant may be lost, for example the sleeve valve of an internal-combustion engine, the element is provided with a cavity having separate inlet and outlet holes so disposed that accelerating forces displace the lubricant in the cavity away from each of the holes whilst that hole is traversing the port. The cavity 19 is shown as formed in a sleeve valve 13 controlling exhaust at 12, and is provided with separate inlet and outlet holes 20, 21 respectively. The cavity receives lubricant, in the position shown, from a supply passage 15, and when the holes 21 are traversing the port 12 the valve has a positive acceleration which causes the oil to recede from the holes 21. As the valve approaches the upper end of its movement, however, the acceleration becomes negative, and the oil is forced towards the holes 21, assisting its discharge. The cavity may be formed by holes bored through the sleeve, or by recessing the sleeve internally or externally and brazing on a tubular member 16. In the latter case the sleeve valve is sufficiently thin at that part to be pressed against the cylinder wall by the gas pressure, and this action may be assisted by making the tubular member 28 flexible when arranged internally as in Fig. 7, by tapering it towards its upper end. The upper lubricating-hole may be a narrow slot 30, and when the valve has a rotary component of motion, the tendency of centrifugal force to cause discharge of oil may be resisted by a lip 31. The holes 20, 21 may be sloping instead of radial, in order to reduce the volume of oil actually present in the outlet hole. In another form, the holes 20, 21 are arranged so that when one is opposite the cil supply, the other is opposite an oil drain, whereby the cavity is flushed with oil. When used for lubricating the piston and cylinder wall of an engine, the cavity is formed in the piston.
Patent GB-628847-A (GB)
Title: Photographic material and method
IPC: G03C7/18
Filed: 1947-02-11
Abstract: 628,847. Producing relief images by means of luminescent materials. TECHNICOLOR MOTION PICTURE CORPORATION. Feb. 11, 1947, No. 5959. Convention date, June 11, 1946. [Class 98 (ii)] [Also in Group XL (a)] A photographic sheet comprises a support, a fluorescent coating which emits secondary radiation of two different bands of wavelengths in response to illumination with primary radiation of two other different bands of wavelengths, each of the bands of the bands of the primary radiation exciting a different secondary band, and a layer which is sensitive to said different bands of secondary radiation, said layer incorporating material such as dyes which absorb the different bands of secondary radiation in different degrees. Preferably the fluorescent coating is arranged between the support and the sensitive layer which is insensitive to the primary radiation which is blue-green to yellow light. As shown, a printing material P comprises a support 1 of cellulose acetate or cellulose nitrate, two intermediate fluorescent coatings 2, 2<SP>1</SP> and two outer silver halide emulsion layers 3. 3<SP>1</SP>. The fluorescent layers are produced by coating the support with a mixture, in acetone, of powdered crystalline zinc and cadmium sulphides activated with silver, Rhodamine B and cellulose acetate, and when excited with greenishyellow light emit orange-red light while when excited with blue-green light they emit deep red light. The emulsion layers are sensitized to orange-red and deep red light by dyes such as pinacyanol and dicyanin respectively and dyes such as Alkali Fast Green 10G or a disazo cyan dye as disclosed in Specification 607,792 are included to confine the latent image to the support side of the emulsion and to allow, by means of their differential absorption of orangered and deep red light, variations in contrast to be obtained by selecting the colour of the primary printing light and hence the secondary fluorescent light which exposes the emulsion. The material P may be employed in the production of relief images by exposing through a negative N in contact with the emulsion in which the record is to be printed by the fluorescent layer, developing with a tanning, e.g. pyro, developer and washing away the unexposed gelatin. The relief images, if in register, may represent complemental colour aspects of a scene so that on dyeing they produce a colour picture when viewed by transmitted light. If the film is to be used as a double. sided dye matrix for imbibition printing the images are preferably identical and are employed to print either consecutively or simultaneously two separate imbibition copies. Specification 626,319 also is referred to.
Patent GB-680797-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
Inventor: WINTERHALTER MARTIN
Filed: 1948-02-11
Abstract: 680,797. Moulding sliding-clasp fasteners. SOC. DI LICENZE INDUSTRIALI SOC. ANON. Feb. 11, 1948, No. 3965/48. Class 87 (ii). [Also in Groups XXII and XXV] In a sliding-clasp fastener of which the elements, of metallic or plastic material, are cast or moulded in situ around a tape or other flexible carrier, the legs of the elements 5, Fig. 1, are made with extensions 11 of less thickness than the legs and extending beyond them. As shown in Fig. 3, the extensions 111 may extend laterally of the legs. The mould used comprises two parts 12, 13, Fig. 4, each having a main channel 14 for the introduction of the moulding material, and two recesses 19 for the tapes. Grooves 20 accommodate the thickened edges of the tapes and have notches 16 forming the moulds for the elements, channels 15, each having three constrictions, connecting the notches with the main channel 14. On mould-part 12 are arranged two metal strips 24, whose edges extend slightly into the region of the notches 16, and which are rotatably connected to the mould by hinges 25. Ejector rods passing through the mould and bearing on the strips serve to lift the latter to free the completed fastener. Various arrangements of the channels leading from the channel 14 to the notches are shown in Figs. 10, 11, and 12. The moulding material is broken off at constrictions 229, Fig. 10, or 329, Fig. 11, leaving the remainder to form a decorative pattern. Holes 332, Fig. 11, or a wavy line 431, Fig. 12, serve as a guide for sewing the tape to an article. Fig. 15 shows a fastener with elements 505 moulded or cast on an inextensible cord or string 503, the thinner extensions 511 of the elements being interconnected by a lattice web 533 which serves for sewing the fastener to an article. A mould in which the material flows over the tapes in a direction parallel to the length thereof, shown in Fig. 17, has two recesses 719 to hold the tapes, with grooves 720 for the thickened edges and notches 716 to form the elements, the notches communicating with each other by channels 735 which have constrictions between each notch, and merge at each end into main channels 714 communicating with ducts 721 through which the moulding material is introduced. The material solidified in the channels 735 is broken at the constrictions. In the form of fastener shown in Fig. 21, each leg 809 of the elements is provided with an extension 811 which is thinner than the leg and surrounds it at each side of the tape and projects beyond the edge 3 of the tape. The metal strip for ejecting the elements from the mould forms a groove 812 in the head of each element in which engage the extensions 811 of adjacent elements.
Patent GB-176340-A (GB)
Title: Improvements in or relating to apparatus for drying yeast
IPC: C12N1/04
Filed: 1922-02-10
Abstract: 176,340. Klein, E. March 3, 1921, [Convention date]. Depositing chambers. - A yeast drier comprising a tank with a false bottom permeable to air passing through the tank is provided with a stirrer or disintegrator which continuously disintegrates the yeast on the floor, the yeast being separated and conveyed away as it is dried to a collector in which it is further dried. As the yeast is dried, the warm air current carries it through a pipe 8 into a collector tank 9 divided into single tanks 19, 20, 21 heated for example by steam coils. These tanks communicate at their upper ends, so that the air current carrying the lighter particles away from any tank leads them to the next tank; the air freed from the yeast particles finally escapes by outlets 26 covered by a roof 27. The shafts 16, 17, 18 forming upper continuations of the tanks are shaken to dislodge adhering particles by a beater 32 actuated by an eccentric 33 on the shaft 28 or by a spring 34. A beater 23 is provided in the upper part of the collector.
Patent GB-656252-A (GB)
Title: Improvements in or relating to multi-cylinder piston machines
IPC: F02G1/043
Filed: 1948-02-11
Abstract: 656,252. Hot-gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 11, 1948, No. 4018. Convention date, Feb. 14, 1947. [Class 7(i)] [Also in Groups XIII and XXIV] The invention relates to multi-cylinder piston machines and concerns such machines which are double-acting and wherein each piston rod drives a lever mechanism from which a crankshaft is driven through a connecting rod and wherein the axes of the cylinders are arranged in only two planes inclined at an acute angle to one another, the line of intersection of these planes being parallel to the crankshaft axis. A multi-cylinder double-acting hot-gas engine is described, As shown a crankshaft K is driven by pistons 1013 and 1213 acting in cylinders 10, 12 respectively and pistons not shown acting in cylinders 11, 13. The piston 1013 operates through a piston rod 1011 pivoted to a frame 1014 at B the frame being pivoted at a fixed point 1017. A connecting rod 1015 is pivoted at C to the frame and at D to a crank 1016 on the crankshaft. The driving arrangements of the other pistons are similar. The piston rod 1011 has a resilient portion 1018 formed by thinning the rod. An annular space in each cylinder comprises a heater, a regenerator and a cooler and the heater communicates with the space above the piston in the same cylinder and the cooler communicates with the space below the piston in the cylinder next to it, channels 14, 15, 16, 17 being provided for the latter purpose. With the arrangement of the driving gear shown, the engine can be kept as compact as possible but the ratio of the length of connecting rod to crank arm can be kept at 6:1 or more. In order to keep the transmission between the pistons and cranks as smooth as possible, the angle F-1217-G of the guide 1214 is equal to half the angle a<SP>1</SP>. The pivot 1017 is located in such a manner that in the mid position of the piston the line T-1017 is perpendicular to the cylinder centre line and the line C-1017 is perpendicular to the central plane Z-Z. The whole engine may be included in a frame not shown.
Patent GB-735664-A (GB)
Title: Change speed gear operating means for automobiles
IPC: F16H61/30
Filed: 1953-02-13
Abstract: 735,664. Change speed control. AUSTIN MOTOR CO., Ltd., and HARRIS, D. P. Feb. 12, 1954 [Feb. 13, 1953], No. 4041/53. Class 80 (2). Change-speed gear operating means for motor vehicles, of the type in which a hand lever 11 is mounted on the steering column 12 or elsewhere and is pivotable in directions A, B at right angles to each other for selecting and then engaging a desired ratio, comprises a flexible cable 14 for transmitting the selecting movements and a hydraulic system 18, 25, &c., including piping 23, 24 flexible at least in part, for transmitting the ratio engaging movements of the hand lever. The hand lever 11 is connected by a rod 13 moved axially to transmit the selecting movement through the Bowden cable 14 to a selecting lever 15. Pivoting of the hand lever 11 about an axis parallel to the steering column moves a piston 25 up or down from the neutral position shown to pump fluid through the pipes 23, 24 to one side or other of a piston 18 which actuates a gear engagement lever 17. Non-return valves 28 connect the pipes to a liquid reservoir 29. Longitudinal slots 30 are provided at the ends of the rod supporting the piston 18, so that if, on completion of the movement of the piston 18, the piston 25 still has some distance to travel, excess fluid escapes past one of the slots 30 which now extends beyond one of two corresponding sealing glands 31; the two pistons 18, 25 are thus prevented from becoming out-ofphase with each other.
Patent GB-788451-A (GB)
Title: A method of improving the luminescence of luminescent materials and luminescent materials when improved by the method
IPC: C09K11/73
Filed: 1955-02-10
Abstract: 788,451. Luminescent materials. THORN ELECTRICAL INDUSTRIES, Ltd. Feb. 10, 1955 [Feb. 19, 1954], No. 4065/55. Class 39(1). Improved brightness is produced in luminescent materials by milling in a non-acid liquid medium and then washing with an acidic solution. The material is preferably dried after milling and before the acid treatment. Halophosphates may be milled in distilled water, amyl acetate, butyl acetate or other liquid not attacking the luminescent material chemically, filtered and dried, washed in hydrochloric acid (1/1000) or in sulphuric, phosphoric, acetic, oxalic or boric acids, filtered and washed and finally washed with ammonium hydroxide (2/1000), sodium hydroxide, potassium hydroxide, pyridine, quaternary ammonium compounds or organic amines such as tri-alkyl amines of short chain aliphatic compounds. Tungstates may be similarly treated. Specifications 691,127 and 691,563 are referred to.
Patent GB-709338-A (GB)
Title: Improvements in or relating to telescopic hydraulic shock absorbers
Inventor: BIRKHEAD PETER THOMAS
IPC: F16F9/34
Filed: 1951-02-22
Abstract: 709,338. Hydraulic dampers. ARMSTRONG'S PATENTS CO., Ltd. May 1, 1952 [Feb. 22, 1951], No. 4270/51. Class 108(3) The shock-absorber claimed in Specification 657,030 is provided with a tube 34 which communicates via a bore 33 in the upper cylinder head 19 with a piston-rod sealing-gland 30, and extends to a point below the normal level of liquid in the reservoir B. The reservoir may have an annular baffle. Specification 709,204 is referred to in the Provisional Specification. Reference has been directed by the Comptroller to Specification 709,204.
Patent GB-898731-A (GB)
Title: Coil spring knotting apparatus
IPC: B21F35/00
Filed: 1961-02-06
Abstract: 898,731. Making coil springs. SPUEHL A.G. Feb. 6, 1961 [Nov. 23, 1960], No. 4319/61. Class 83 (4). A coil spring knotting apparatus having a knotting wheel 5 and pincers 22, 23 which are displaceable relatively to the axis of the knotting wheel and serve to retain the coil spring 12 whilst the free end 27 of the end turn 11 is knotted and, which, as a result of the displacement produced in addition to the knot 26, a kink 28 in the wire which kink serves to secure the knot, is characterized by a correcting device which comprises a ram 35 which urges that turn of the spring which is adjacent to the end turn gripped by the pincers away from the end turn in the direction of the axis of the spring at a point displaced from the knotting wheel approximately 90 degrees, and by a finger 47 which prevents deflection of the spring wire by the ram 35 between the knotting wheel 5 and the pincers 22, 23 on the one side and the ram 35 on the other side, until a small permanent deformation of the wire is produced, which compensates for the sloping configuration of the spring which would otherwise occur as a result of the kink 28 produced by the pincers 22, 23. The end turn 11 of a double conical coil spring is centred on fixed member 16. Rocker arms 1 and 24 are then swung upwardly about a pivot 2, so that the end coil 11 is clamped between a fixed jaw 22 and a jaw 23 on the arm 24 while the coil 11 seats in a slot 9 of a knotting wheel 5 carried by the arm 1. The wheel 5 is then rotated by a wheel 14 so that a projection 7 on the wheel 5 winds the free end 27 of the wire around the end coil 11 to produce the knot 26. To produce the correcting deformation in the end coil 11 the ram 35 is moved through a bore in the member 16 by an adjustable cam 46 on the arm 1 engaging an adjustable cam 43 on a pivoted lever 39 engaging the end of the ram 35. The head of the ram 35 is bevelled at 36 to engage and displace the wire. The finger 47 is secured to the arm 24 and engages the wire to ensure a permanent deformation. Two sets of knotting apparatus are provided one for each end of the spring.
Patent GB-1039049-A (GB)
Title: Improvements in or relating to a pressure mould for vulcanising tyres
IPC: B29D30/06
Filed: 1964-01-31
Abstract: 1,039,049. Tyre moulds. LEOHN HERBERT MASCHINENFABRIK. Jan. 31, 1964 [Feb. 1, 1963], No. 4325/64. Heading B5A. A tyre vulcanizing mould includes a fixed sidewall forming mould section 1, a plurality of radially displaceable tread forming mould segments 5, 6 and a movable sidewall forming mould section 3 supported from a carrier 4 and urged downwardly by helical springs 16 located in bores 15. An annular ring 12 depends from the carrier 4 and carries dovetailed guide pieces 10 which engage grooves 9 in the segments 5, the outer conical surfaces of which co-operate with the inner conical surface of the ring 12. Abutments 13 are secured at the top of the grooves 9 so that as the carrier 4 moves upwardly to move the segments 5 outwardly the guide pieces meet the abutments 13 to raise the segments 5 and allow removal of the vulcanized tyre.
Patent GB-928180-A (GB)
Title: Improvements in or relating to building constructions
IPC: E04B2/70
Filed: 1961-02-06
Abstract: 928,180. Building-units. R. PICHON. Feb. 6, 1961 [Feb. 24, 1960; Jan. 23, 1961], No. 4403/61. Class 87 (1). [Also in Group XXIII] A building panel comprises boards 1, 1a, 1b with two or more spacers 2, 3 between adjacent boards and the lengthwise direction of both the boards and the spacers disposed parallel to the base of the panel. The material used may be wood, plastics, compressed wood, concrete casings filled with asbestos, glass or similar materials. The boards and spacers are flush with each other on one face of the panel and on the other face, which will be the exterior face in use, the boards extend beyond the spacers. The boards preferably slope downwards towards the exterior face and the panel is completed by a base board 11 having a sloping upper face. The spacers are glued in grooves 6, 7 in the boards, but the grooves can be omitted and the panel braced by upright rod or tubes through apertures 8 in the boards. Holes 9, 9a are provided in the spacers to allow the panel to breathe and the bracing tubes are apertured to provide communication between the spaces 4 or, if rods are used, the holes 8 have grooves along their length. The spaces 4 may be filled with insulating material such as fibreglass, asbestos, cork or plastics.
Patent GB-539980-A (GB)
Title: Improvements in or relating to method of making inner tubes for pneumatic tyres
IPC: B29B15/02
Filed: 1940-03-09
Abstract: 539,980. Moulding wheel tyres. FIRESTONE TYRE & RUBBER CO., Ltd. March 9, 1940, No. 4461. Convention date, June 3, 1939. [Class 87 (ii)] [Also in Group XXXIV] Safety inner tubes of the kind comprising concentric inner and outer compartments are made from an endless band 10 having inner and outer plies 10a, 10b the margins of the wider ply 10b being covered with thin strips 11 of unvulcanized rubber. The band is stretched over an annular expansible rubber core 13, Fig. 2, the marginal portion being bent over the core by a roller 15. The band after provision of an apertured washer 16 and vulcanization is disconnected from the core and, after its edges have been buffed, is stretched on a drum 20 in which position it is covered by a slightly larger unvulcanized band 21, the overlapping edges being joined by strips 22 of "tie gum" and an additional strip 23 of unvulcanized rubber being bent over one marginal portion. The structure is then removed from the drum, fitted with an inflation valve stem 26, and the unattached margin of the strip 23 is attached to the face margin of the joint strips 10, 21 to form the completed tube, Fig. 5, which is then vulcanized.
Patent GB-903893-A (GB)
Title: Method of heat treatment using dual atmosphere apparatus
Inventor: HAYES CARL I
IPC: C21D1/74
Filed: 1961-02-07
Abstract: 903,893. Annealing. HAYES Inc., C. I. Feb. 7, 1961, No. 4482/61. Class 72. [Also in Group XII] A continuous heat-treatment furnace 10 comprises an inlet 28 for a relatively light primary atmosphere, e.g. hydrogen, adjacent an elevated treatment chamber 16, and inlets 30 with flowmeters 32 for a relatively heavy secondary atmosphere, e.g. dissociated ammonia, situated near the low level charging and discharging ends. The articles to be heated travel on a conveyer belt under an inlet flap 22 up the passageway 12, through a preheating chamber 14, the chamber 16 and a cooler chamber 18, down the passageway 20 and out under flap 24. Another embodiment, Fig. 2 (not shown), has the inlet and outlet passageways replaced by loading and unloading chambers housing elevators, and there is no preheating chamber. The ratio of primary: secondary atmospheres may be 1 : 2 by volume.