baber/WOPTO huggingface dataset:
Patent GB-520310-A (GB)
Title: Improvements in or relating to focal plane photographic shutter mechanisms
IPC: G03B7/12
Filed: 1938-11-04
Abstract: 520,310. Photographic shutters. KODAK, Ltd. Nov. 4, 1938, No. 31987. Convention date, Nov. 5, 1937. [Class 98 (i)] A focal plane shutter has two curtains forming a variable slit, the means for releasing the second curtain being controlled by a cam rotating with the first curtain roller, through an element which moves with the cam and is arrested by a member controlled by a light-sensitive cell. The curtains 14, 15, are wound on spindles 19, 20 which are connected through a one-way clutch so that the curtains are wound simultaneously through gears 22, 30, 29, 28 and the pawl 26 engaging a ratchet 25 on the film- and shutter-winding gear 23, but the curtain 14 can unwind independently on release of the pawl 26 by pressing the button 39, the curtain 15 being held by a ratchet 47 engaging a shoulder 46 on lever 44. A pin 32 on the arm 33 of a bell-crank lever then follows a cam 31 on the gear 28, causing the other arm 37 to release a comb 35, which then entraps the pointer 34 of a photo-electric exposure meter. The lightsensitive cell 17 of this meter is mounted inside the camera parallel to the top, light coming through the lens being reflected thereon by a pivoted mirror 16, which is connected by a link 89 to the comb, so that it is turned out of the path of the light rays when the comb is depressed. The rotation of the bell-crank lever 33 next brings the forked end of the interceptor member 40, which is biased by a spring 42, against the entrapped pointer 34, its other end then swinging round to srike the end of the lever 44, thus releasing the ratchet 47. The pawl 50 follows the movement of the lever 44, and a tooth 49 thereon engages the ratchet 48,- thus locking both curtains. When the button 39 is released, a pin 54 on the lever 38 disengages the tooth 49 from the ratchet 48, and both curtains are then released with the established slit to make the exposure. Specifications 470,863, 520,954, 520,955, and 520,957 are referred to
Patent GB-462145-A (GB)
Title: Improvements in or relating to drying plants
IPC: F26B17/26
Filed: 1935-11-19
Abstract: 462,145. Jigging-conveyors. LOM, A. VON, and BUTTNER-WERKE AKT.-GES. Nov. 19, 1935, No. 32078. Convention date, Nov. 19, 1934. Addition to 439,638, [Group XIII]. [Class 78 (i)] In a modification of the drying-apparatus described in the parent Specification, the material to be dried is in compartments in stepped formation, and is conveyed, by vibratory movements, from the base of one compartment through openings therein to form the upper surface of the layer in the next compartment. As shown, the material flows through openings a, the rate of flow being controlled by adjustable baffles b. The depth of each compartment preferably corresponds approximately to the depth of the layer which normally flows through the apparatus. Plates d may be provided to guide the flow of material.
Patent GB-1214752-A (GB)
Title: Railway car couplers
IPC: B61G9/24
Filed: 1969-06-25
Abstract: 1,214,752. Railway car couplers. AMSTED INDUSTRIES Inc. 25 June, 1969 [18 July, 1968], No. 32081/69. Heading B7T. In a railway car coupler typified by an A.A.R. type F standard coupler (Fig. 1, not shown) the butt (10) comprising a bearing seat 48 with top and bottom straps 52, 54 is modified in the region of the straps to provide improved stress characteristics and reduce crack formations. The straps 52, 54 are reduced to the broken line positions 52a, 54a with their radius of curvature increased where they merge with the inner surfaces (64) of the side walls (42, 44) of the pinhole.
Patent GB-729508-A (GB)
Title: Improvements in and relating to a vacuum cleaner nozzle
IPC: A47L9/02
Filed: 1952-12-18
Abstract: 729,508. Suction cleaner nozzles. AKTIESELSKABET FISKER & NIELSEN. Dec. 18, 1952 [Feb. 4, 1952], No. 32157/52. Class 8 (1). In a suction cleaner nozzle 1, Fig. 1, having an internal thread removing comb 6 carried by a plate or frame 9 vertically adjustable between operative and inoperative positions by external means, e.g. a handle 17, the comb 6 extends across the entire width of the nozzle casing and the comb teeth 7 extend below the nozzle mouth when in the operative position. The carrier 9 to which the comb 6 is secured by spring clips is of inverted dish form and has a vertical rib 22 carrying a mounting 23 with a helical groove 21 engaged by pins 20 projecting from a handle shaft 16. Flanges 15 at the ends of the carrier 9 together with a plate 24 support the nozzle at a height above the floor depending on the position of the handle with respect to a plurality of graduated projections on the nozzle casing which engage an aperture in said handle. The groove 21 has horizontal ends to lock the comb in its terminal position. In a modification a thread remover 46, Fig. 5, extends along both longitudinal edges of the nozzle and is formed as a frame having longitudinal portions 44 joined at the ends by portions 45 and having flanges 53 engaging nozzle abutments 53, 54 in the inoperative and operative positions respectively. The comb 46 is secured by lugs 48 to a carrier frame 47 which is adjusted vertically by abutment of one or other of two edges of a triangular, sectioned member 49 pivoted about a handle operated shaft 50 at its third edge against upper and lower carrier frame faces 65, 62. In a further modification wherein the comb extends substantially throughout the whole periphery of the nozzle, the comb carrier comprises a U-shaped frame having rectangular recesses engaged by a T- shaped pivoted handle actuated frame adjusting member. The comb may be of rubber or metal, and if the latter the teeth are preferably rounded..
Patent GB-209896-A (GB)
Title: Improvements in or connected with rulers
IPC: B43L7/00
Filed: 1922-11-24
Abstract: 209,896. Edwards, R. T. Nov. 24, 1922. Blotting-appliances.-A combined ruler and holder for sheets of blotting paper or the like, of the kind wherein the sheets are gripped between the ruler member and a bar hinged thereto, comprises a frame bar 3 with a semi-circular or rounded scale-divided upper edge 1, a gripping- bar 4 hinged at 5 to one end of the frame bar 3, and means, for example a ring 6, for securing the other end' of the gripping-bar to the frame. A sheet 7 of celluloid or like material mav be attached to the underside of the bar 4 and rests on the uppermost sheet 8 of blotting material. The gripping-bar may be provided' with channel members to receive the edges of the blotting material.
Patent GB-1004085-A (GB)
Title: Improvements in or relating to cooling flues
IPC: F27D17/00
Filed: 1961-09-08
Abstract: 1,004,085. Chimney linings. WAAGNERBIRO A.G. Sept. 8, 1961 [Sept. 9, 1960], No. 32266/61. Headings F4B and F4J. A chimney lining comprises contiguous coolant tubes 1 running between headers 2, 3 and welded to an outer metallic casing 7 by metal flanges 4 which are bolted to the casing sheets at 10. The bottom flanges 5 may be bolted to the foundation blocks 6, and the space between the outer sheets 7 and the tubes is insulated. The sheets 7 are flanged as shown to allow for differential expansion between the sheets and the tubes.
Patent GB-160289-A (GB)
Title: Improvements in self-feeding apparatus for disabled persons
IPC: A61F2/54
Filed: 1919-12-24
Abstract: 160,289. Davis, W. C., Ackerson, S. A., and Kinsey, W. L., (trading as Davis Automatic Self Feeder Co. of America). Dec. 24, 1919. Armless persons, foot and knee operated appliances for.-A frame carrying a stand fnr foodreceptacles and a spoon and fork operating-device is clamped to an ordinary table and is provided with knee-operated mechanism for moving the food-receptacles laterally, and pedal mechanism for actuating the spoon and fork operating-device. A drinking vessel is carried by a pivoted strap within reach of the person using the apparatus. The base 2 is capable of being clamped to the table A. It is fitted with two guides 8 between which a plate 7 can be slid, through the action of a knee-lever 19, which vibrates the link 12 connected at 11 to a post on the plate 7. This plate carries food-containers B, C which can be tilted if necessary. By the use of the knee-lever 19, any container can be brought under the feeding-utensil, and every part of the container, so far as its lateral extent is concerned. The foodutensil may be a. spoon, as shown in Figs. 1 and 2, or a fork as seen in Fig. 7. It is fixed in a holder 38 reciprocated by the slide 23 under the action of the pedal lever 28 and cord 25. The holder 38 is pivoted at 35 to the slide 23 and has a crooked extension 48 which may be brought against a stop 49 as shown in Fig. 7. In this case the fork is being used, and, by the rocking of the holder, it is brought into such a position that the food impaled on it can be easily reached. When the spoon is being used, the holder is given a sweeping movement by means of a cam 21 held by links 41, 42. A pin 20 on the holder bears against the cam and follows its surface. As the holder rises. as shown in Fig. 2, it remains vertical. When, however, the pin 20 has passed to the left of the cam, the descending movement of the slide 23 causes the holder to rock to the left as shown in dotted lines and so the spoon makes a sweeping movement towards the lowermost portion of its movement. The cam can be put out of the path of the pin 20 by rocking the links 41, 42 through the triangular piece 45. Fig. 7 shows this position of the cam. The drink vessel 52, is held in a strap 53 pivoted on an adjustable bracket 55.
Patent GB-163070-A (GB)
Title: Improvements in aerial systems employed in wireless signalling
IPC: G01S3/06
Filed: 1919-12-24
Abstract: 163,070. Smith, S. B., and Wright, G. M. Dec. 24, 1919. Directive signalling; aerials. -A directional system giving the well-known heart-shaped polar diagram is obtained by connecting a pair of frame aerials through a tightly-coupled radio-goniometer F, S to one primary P of a transformer, and connecting the mid-point of the two frames to earth through a resistance R and a second primary T of the transformer. The secondary J is connected at one end to a screen E and is shunted by a variable capacity K by which the complete circuit can be tuned. Instead of two frame aerials and a radio-goniometer, a single rotatable frame may be employed, with its mid-point earthed through the winding T. In the modification shown in Fig. 3, the winding T acts on a secondary B in the circuit of the primary P, so that at the zero polar position there is no current in this circuit. In this case the transformer P, J is a loosely-coupled jigger, and a separate tuning capacity K<1> is introduced in the circuit of the primary P. The minimum polar indication is approximated to zero by adjustment of the resistance R, the best effect being obtained when the earthed aerial system is tuned to a wave-length rather shorter than that which is being received. Direction can be determined by adjusting the radio-goniometer until no change of signal strength occurs when the connections to the search coil S are reversed. This corresponds to the points X, Y on the polar diagram, Fig. 5, which are also the points at which a given change of angle makes the greatest difference to the two signal strengths. For standby purposes, the resistance R may be shortcircuited, giving a system which receives approximately equally in all directions.
Patent GB-858480-A (GB)
Title: Multilevel gravity-feed package-merchandising machine
IPC: G07F11/30
Filed: 1959-09-24
Abstract: 858,480. Coin-freed vending apparatus. ROWE MANUFACTURING CO. Inc. Sept. 24, 1959 [Oct. 20, 1958], No. 32469/59. Class 27 A vending machine has a number of inclined shoots 18 arranged in tiers and at the end of each shoot is a pivoted rightangled stop 60 which is held in articleretaining position by a lever 76 engaging a lug 78 and, on release of the lever, swings under the weight of the article and the influence of a spring 68, to allow the article to topple down a delivery shoot. The lever is released by being struck by a pin 94 on one of a number of arms 92 circumferentially and axially spaced on a rotatable shaft 88 so that they release articles across the tier in succession. Where it is desired to have two types of article in the one tier, two axially aligned shafts 88 with separate rotating means are provided and the arms 92 are duplicated at 180 degree positions. The shaft or shafts 88 for each tier are rotated step-bystep by one or a pair of solenoids 134 which operate a pawl rod 106 to act on a ratchet wheel 100; a lug 114 moves into the path of a tooth 112 to prevent excess movement of the wheel and a pin 120 on a spring- loaded arm 116 enters a tooth space to ensure that the wheel is properly positioned. During the pivoting of the stop, a lever 124 having a pin-and-slot connection with it at 126, 128 is also pivoted so that a lug 130 at its other end lies in the path of the pin 94 and, during the next dispensing cycle, the pin engages the lug so that the stop is re-set and the spring 68 reloaded. A strap 132 prevents articles being delivered by tilting of the machine. A released article falls to a shoot 270 and is accessible to a purchaser through a door 32; if the article comes from the top tier, it depresses a pair of spring-loaded shoots 258, 260 from horizontal to inclined positions. The electrical system for the machine comprises a known motor-driven coin totalizer coupled through selector switches to the articlerelease solenoids 134 and also a coin-return switch which is by-passed when the totalizer motor is operating. When articles in the shoot of any one tier are exhausted, an arm 138 is allowed to rotate and operate a switch 150 so that the circuit of the corresponding solenoid cannot be completed and a circuit to an emptysignal lamp is closed.
Patent GB-775136-A (GB)
Title: Improvements in steam traps
Inventor: POWELL JOHN WILSON
IPC: F16T1/30
Filed: 1954-11-10
Abstract: 775,136. Steam traps. LANCASTER & TONGE, Ltd. Nov. 9, 1955 [Nov. 10, 1954], No. 32480/54. Class 64(2) In a steam trap, a lever E carrying an outlet valve d has one pivot formed by a projection e and a second pivot, formed by a pin e<SP>1</SP> with its ends in slots f, nearer a pin g by which the lever is pivoted to an inverted bucket float C. When the float first begins to sink, the projection e contacts the valve seat member D and acts as pivot but later, as shown, the pin el contacts the bottoms of the slots f and becomes the pivot with a lessening of leverage on the valve d which then moves more quickly.
Patent GB-267450-A (GB)
Title: Improvements in and relating to feed water heating and boiler feed supply apparatus
IPC: F22D1/42
Filed: 1925-08-31
Abstract: 267,450. Blunt, E. H. Aug. 31, 1925. Drawings to Specification. Feedwater, heating.-A feed-heating and supplying apparatus comprises a heater vessel, a pump handling hot and cold water on the two sides of the piston and means whereby a rise or fall in the pressure in the heater controls the output from the heater accordingly. The heater may be of the open or closed type and the use of a single or double cylinder pump is mentioned. The following features are incorporated in the example given, the description and application being the same as set forth in Specification 266,953 :-Control by the pressure in the heater (1) of the supply of additional heating steam from the exhaust of auxiliary engines, (2) of a frictional resistance in the cold-water supply from pump to heater so as to regulate the speed of the pump, and (3) of the main live-steam supply to the pump cylinders. Control by a float in the heater (1) of the resistance in the cold water supply to the heater to slow down the pump at an undue low water level, and (2) of a by-pass enabling cold water to return to suction or other pumping chamber of the pump; a hand-controlled by-pass permitting hot water to return to heater or to suction of other pump; a high-pressure relief valve on heater opening into a steam cylinder-jacket of pump.
Patent GB-1271759-A (GB)
Title: Extrusion die for plastic film, and method
IPC: B29C48/10
Filed: 1970-07-06
Abstract: 1,271,759. Making laminated tubular films. AMERICAN CAN CO. AND SKELLY OIL CO. 6 July, 1970 [15 July, 1969], No. 32654/70. Headings B5A and B5B. An extrusion die for producing laminated, tubular, plastic film comprises a die with an entrance and an annular exit linked by a passageway which contains a means for dividing the input of fluid plastic material into a plurality of separate streams. Each stream is further subdivided and the resultant substreams formed into ribbons which are then re-united edge-to-edge to form a film; one film being formed from each original stream. These films are then joined interfacially together and extruded from the die as a tubular laminate; the films being so joined that the joints between the ribbons in one film are covered by the ribbons in the adjacent film or films. In the embodiment shown in Fig. 2, the die is composed of a series of separable parts which are readily removable for cleaning. The base 12 of the die is of generally cylindrical form and has a die ring 13 overlying it with the die ring body 14 held between these two. A die mandrel body 15 is positioned within the ring body 14 and an overlying die mandrel 16 lies within the ring 13 and over, and in contact with the die mandrel body 15. The mandrel body 15 and the bevel 12 form a chamber 26 which contains a melt-spreader plate 27 7 which divides the plastic fluid entering via entrance 28 into two streams one passing above the plate and the other below. Fig. 3 illustrates this spreader plate 27 in plan view with details of the lower side given in dotted lines. The material which flows along the upper face reaches it via central passage 34 and then separates into sub-streams along passages 36 which are of constant width by the passage 34 but near the periphery diverge so that adjacent channels just meet at the circumference of the plate. The plastic passing along the lower fall is similarly sub-divided into substreams by similar channels 35, which, however, are offset from channels 36 in order that the joins in the material which has passed along the upper face do not coincide with that which has passed along the lower face. The latter material passes as a tubular film upwards along annular passage 32 where it is then laminated with the film formed from the upper stream and the combined laminate extruded via passage 31 and the narrower passage 30 to the annular exit 29 and is then blown. A further embodiment is described for producing a trilaminate; the principles of the design of which can easily be adapted for production of higher multilaminates. These dies may be rotated if required to be.
Patent GB-469474-A (GB)
Title: New vulcanisation accelerators
IPC: C08K5/00
Filed: 1935-11-25
Abstract: The vulcanization of rubber is accelerated by the addition to the mix of either mercaptobenzothiazole or dibenzthiazyl disulphide in admixture with piperidine or pipecoline salts of nitro or hydroxy substituted carboxylic acids of the benzene or naphthalene series which may carry chlorine but no other substituents.  Salts mentioned are piperidine salicylate, m-nitrobenzoate, p-nitrobenzoate, 3-hydroxy-2-naphthoate and a -pipecoline salicylate.  The piperidine and pipecoline used may p  be either pure compounds or the less pure products obtained by hydrogenation of technical pyridine bases.  The components of the mixed accelerator may be mixed prior to incorporation with the rubber, or they may be added to the rubber separately.  Examples are given to show the efficiency of the accelerators in the vulcanization of rubber.
Patent GB-748925-A (GB)
Title: Semiconductor electric signal translating devices and circuits employing them
IPC: H01L31/18
Filed: 1953-11-25
Abstract: 748,925. Transistors. WESTERN ELECTRIC CO., Inc. Nov. 25, 1953 [Dec. 16, 1952] No. 32720/53. Class 37. A signal translating device comprises a semi. conductor body having a substantially intrinsic region contiguous with an extrinsic region, a collector connection to the intrinsic region, and emitter and base connections to the extrinsic region. The arrangement provides low base resistance and low connector capacitance. In Fig. 1 a wafer 10 of silicon or germanium has an intrinsic zone 11, and a strong N-type zone 12 bearing the base contact and in contact with a P-type portion 13 constituting part of the emitter connections. The collector connection is provided by a P-type portion 14 which contacts the intrinsic region 11. The emitter is biased positively and the collector has only a small negative bias. The emitter and/or collector contact may be constituted by a point contact instead of a P-type region. Specifications 700,231, 706,858 and 724,930 are referred to.
Patent GB-937922-A (GB)
Title: Document delivery and stacking apparatus
IPC: G06K13/12
Filed: 1961-09-13
Abstract: 937,922. Delivering sheets. CUMMINSCHICAGO CORPORATION. Sept. 13, 1961 [Sept. 15, 1960], No. 32885/61. Class 100 (1). Documents 12 delivered from a business machine are fed in the direction indicated by the arrow A over support plates 10, 10a by rollers 25, 26, 25a, 26a and are deflected by means of switches 11, 11a into one of two or more receptacles R1, R2. The switches 11, 11a are solenoid-operated and are controlled by means described in Specification 929,384. The receptacles R1, R2 are identical. After being deflected by the switch 11 a document 12 passes between guides 14, 15 into the nip of a pair of feed rollers 18, 19 of which the roller 18 is longitudinally convex and the roller 19 is longitudinally concave. The rollers 18, 19 bow the document transversely so as to stiffen it. After passing between the rollers 18, 19 the leading edge of the document strikes a deflector 20 which bends the document and directs the leading edge into engagement with a receiving platform 54 at a point adjacent to a rotating stacking roller 21 which pulls the document downwards until its leading edge hits a stop 22. The platform 54 is carried by scissor-members 56, 57 pivoted to the machine frame at 5611, 57<SP>11</SP> and is biased to the right by a spring 59; as a stack of documents builds up on the platform the latter is moved to the left against its spring bias, the uppermost document of the stack being kept in a fixed position by means of an edge 114 of the deflector 20. The stop 22 is fixed to a bar 65, which is vertically movable by means of a rack 70 and pinion 69 to permit the stacking of different lengths of document, and intersects the platform 54 by means of comblike portions which engage slots in the platform.
Patent GB-1099975-A (GB)
Title: Gas turbine with cooling for the stator blade-carriers
IPC: F01D25/12
Filed: 1966-07-21
Abstract: 1, 099,975. Gas turbine stator assembly. BROWN BOVERI & CO. Ltd. July 21, 1966 [July 23, 1965], No. 32909/66. Headings F1G and F1T. The invention relates to a gas turbine in which the stator blade carrier is provided with duct means for the passage of cooling air to cool the blade carrier, the cooling air being then mixed with the combustion gases upstream of the turbine blading. The stator blade carrier 3 is supported from the outer casing 6 and carries rows of stator blades 4 which are mounted at 5 in the blade carrier. Grooves 10 are formed in the blade carrier between the blade mountings 5, the grooves being closed by inner walls 18, heat shields 20 being disposed radially inwardly of the walls 18. Cooling air inlet openings 12 are provided in the blade carrier and cooling air flows therethrough from the space between the casing 6 and the inner shield 7. The cooling air discharges from the passages 10 through outlets 14 into a space 16 formed by a member 17 mounted on the blade carrier 3. The cooling air then flows inwardly through opening 13 into a further passage 11 formed in the blade carrier similar to the passages 10. The air discharges from the passage 11 through an axially directed outlet 15 and thence through a gap 8 to mix with the combustion gases flowing towards the turbine blading.