baber/WOPTO huggingface dataset:
Patent GB-1491781-A (GB)
Title: Rolling bearing and a method of manufacturing the same
IPC: F16C19/28
Filed: 1975-02-14
Abstract: 1491781 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 14 Feb 1975 [16 Feb 1974] 6454/75 Heading F2A A method of manufacturing a rolling bearing in which at least one race ring 1 is provided with an integral side flange 3 comprises the steps of (a) forming a groove 10 in the external face of the flange such that the groove corresponds to the outline of a filling-slot to be formed in the flange, (b) heat treating and finish machining the said race ring, (c) removing the part of the flange defined by said groove to form the slot and provide a closure element, (d) assembling the race rings, (e) inserting the rolling members 6 through the slot, (f) replacing in the slot the closure element, and (g) securing the closure element in place. The closure element may be secured by a pin, rivet or screw inserted in a radial bore, or by bonding, or by electron beam welding. Alternatively, the flange and closure element can be formed with an annular groove in which a circlip or sealing disc can be introduced. The groove 10 is formed by turning, milling or stamping. The part defined by the groove is removed by axial pressure. In a further embodiment, both race rings have integral side flanges, and the filling-slot is defined partly by the inner flange and partly by the outer flange at one end. Consequently, two closure elements are formed. The bearing may be a ball bearing, a taper roller bearing, a self-aligning roller bearing, or an axial rolling bearing.
Patent GB-563579-A (GB)
Title: Improvements in and relating to photographic developing machines
IPC: G03D7/00
Filed: 1943-04-22
Abstract: 563,579. Photographic developing apparatus. HALDEN & CO., Ltd., J., and HOLDEN, J. April 22, 1943, No. 6459. [Class 98 (ii)] Photographic developing apparatus of the kind described in Specification 553,508 has an absorbent surface carried on an endless rotating member closing the opening of a chamber containing a generator for moist gas or vapour which impregnates the surface, the part of the surface not closing the chamber being enclosed by a thin, highly polished, flexible tensioned plate close to the surface, under which plate at one end the print to be developed is drawn by the rotating member and is dragged round in contact with the plate and is discharged in developed condition at the other end. As shown, the apparatus comprises a chamber 1 in which is a container 2 for aqueous ammonia above which is a drum 3 having an absorbent surface (e.g. of textile fabric or plaster) and sealing the chamber. The drum may be replaced by an endless band. In contact with the drum is a thin highly polished plate 4 (e.g. of stainless steel) anchored at 5 and tensioned at 6. Tensioning means may, alternatively, be provided at both ends. Gauze, porous textile fabric, or net 7 is provided at both ends to reduce condensation and absorb condensed liquid. The plate 4 may be connected to the tensioning device 6 by the gauze, or may be directly connected thereto. The hood 8 has an outlet 9, which may be connected to an extractor fan and inlets 10 and 11. A heater 12 is provided to assist vaporization, and a supply inlet 13 and overflow 14 are also provided. The chamber 1 is sealed along one edge at 15. A plate 16 or fingers 17 is provided to strip off the print on to the discharge plate 18. The drum 3 is driven by a belt from the pulley 20.
Patent GB-366312-A (GB)
Title: Improvements in or relating to injectors or ejectors
IPC: F04F5/48
Filed: 1931-03-02
Abstract: 366,312. Injectors and ejectors. BORNECKE, R. and BORCHART, F., (trading as BÍRNECKE & BORCHART), 41, Billerbeckstrasse, Witten, Ruhr, Germany. March 2, 1931, No. 6466. Convention date, March 1, 1930. [Class 71.] In injectors and ejectors wherein the inducing and induced media are under the same static pressure, and the energy of flow of the inducing medium is employed for aspirating the induced medium, the regulation for the purpose of adjusting the mixing conditions is produced by modifying the pressure of the induced medium by utilizing the kinetic energy of the inducing-medium. In the construction shown in the Figure, a tube 6 with apertures 7, 8 registers with the inducing-fluid supplied through passage 1 and with the induced fluid in chamber 2 connected to the nozzle 5. The pressure in chamber 2 is varied by rotating the tube 6. Modified forms of nozzles with the apertures therein differently spaced are described.
Patent GB-726095-A (GB)
Title: An improved device for determining the erythrocyte sedimentation rate
IPC: G01N15/05
Filed: 1953-03-09
Abstract: 726,095. Apparatus for determining the erythrocyte sedimentation rate. FREUDENHAMMER, K. March 9, 1953, No. 6466/53. Class 81 (2). A device for determining the erythrocyte sedimentation rate comprises a rack with a platform to receive blood specimen containers, a retaining device for holding sedimentation tubes over the containers, the platform and the retaining device being movable in relation to one another so that the sedimentation tubes can be lowered to the same depth in the various blood specimens, and a device with several connections for the individual sedimentation tubes so. that the pressure can be reduced in all the sedimentation tubes simultaneously. The apparatus comprises a rack 1 having a platform 2 carrying rubber containers 5 for test-tubes 3 each containing a blood specimen and a retaining device 7 having rubber clips 8 for holding graduated sedimentation tubes 9. The retaining device 7 may be raised or lowered on threaded spindles by turning a handle 15 so that the sedimentation tubes 9 dip into the blood specimens by the same amount. Each sedimentation tube 9 is connected with a tube 16 mounted on the rack 1, by a rubber tube 18. A reduction of pressure within the tube 16 and the sedimentation tubes 9 is produced by a syringe 19 until the blood in each sedimentation tube 9 reaches a graduation mark. The tubes 9 are then raised out of the test-tubes 3 and the platform 2 is slid horizontally so that the tubes 9 on lowering again may rest on a rubber strip 6 embedded in the platform 2.
Patent GB-1148844-A (GB)
Title: Rolling mill frame
Inventor: SACK ERNST THEODOR
IPC: B21B31/12
Filed: 1967-02-10
Abstract: 1,148,844. Rolling. MASCHINENFABRIK SACK G.m.b.H. 10 Feb., 1967, No. 6542/67. Heading B3M. A rolling mill includes two end frames, each consisting of two columns 1 interconnected by a cross beam 4 which is located within apertures 1a in the columns. An upper roll chock 4 bears against the underside of each beam 4, and two adjusting screws 3 against its upper surface. The beams can be slid out of the apertures to allow roll changing. Hydraulic rams within the apertures 1a urge the beam upwardly against the screws 2. A similar arrangement is provided for each vertical roll 9 (Fig. 4, in plan) of a universal mill, the columns 1<SP>1</SP> of the mill having extensions 6 with apertures 6a. A beam 7 extends within the apertures and is located between a chock 8 and adjusting screws 11. The rolls and chocks are arranged to be removable through at least one of the apertures, after removal of a cross beam.
Patent GB-622062-A (GB)
Title: Improvements in blasting devices
IPC: F42B1/02
Filed: 1947-03-08
Abstract: 622,062. Blasting devices. SOC. INDUSTRIELLE D'ENTREPRISE ET DE MECANIQUE. March 8, 1947, No. 6556. Convention date, March 9, 1946. Drawings to Specification. [Class 9 (i)] A " hollow-charge " blasting device adapted for use in air or in water and comprising a rear charge with a forwardly extending cavity has in front of the charge a solid inert body which does not absorb water and is of low specific gravity, the rear portion of the body filling the cavity. The material used may be spongy rubber, agglomerated cork, spongy ebonite or earthenware. The surface of the material may be given a metallic coating or otherwise treated to render it sufficiently rigid to support the explosive charge with or without the interposition of a metal liner. The charge and solid body may be enclosed in a rigid or flexible casing with a front opening in alignment with the cavity, an initiating explosive charge being placed at one end of the device when it has an elongated form or at the rear when it is a solid of revolution, the cavity in the first case being wedge-shaped, in the second case conical.
Patent GB-376682-A (GB)
Title: Improvements in door hinges
IPC: E05D7/10
Filed: 1932-03-04
Abstract: 376,682. Hinges. SCHNEIDER, B., 24, Reinsdorf, Post Priestewitz-Land, Germany. March 4, 1932, No. 6561. [Class 65 (ii).] To prevent a stable or like door being accidentally lifted off its hinges latches c are pivoted to the hinge eyes a and hooked ends thereon are adapted to engage under the shanks of the hinge pins d.
Patent GB-765621-A (GB)
Title: Improvements in or relating to gramophone pick-ups comprising at least two needles which are externally damped
IPC: H04R17/06
Filed: 1955-03-07
Abstract: 765,621. Gramophone pick-ups. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 7, 1955 [March 10, 1954], No. 6625/55. Class 40 (2). [Also in Group XXXIX] A gramophone pick-up comprising at least two sound record resilient reproducing needles 2, 3, e.g. for use with normal and micro-groove disc records, each arranged to be alternately operative in a record groove or inoperative and connected via a respective vibratory element 5 to a common transducing element 6, has the needles directly interconnected by a tie member 11 consisting entirely or in part of vibratory clamping material disposed externally of the pick-up housing 1 to eliminate undesired movements of the inoperative needle. As shown, the pick-up has two needles which are tipped with sapphires 4 and have the tie member 11 secured adjacent their groove-engaging ends, and the transducing element 6 is a crystal gripped in the body at 7 and is twisted, in operation, in bearings 9, 10.
Patent GB-721201-A (GB)
Title: Glass-sealed semi-conductor crystal devices
IPC: H01L31/00
Filed: 1951-03-20
Abstract: <PICT:0721201/III/1> <PICT:0721201/III/2> <PICT:0721201/III/3> The invention relates to electric semi-conducto devices in vitreous envelopes, and in one of the manufacturing processes involved a crystal 16, Fig. 8, which may be silicon, mounted in a glass bead supported by a wire 10 is heated by radiant heat from a coil 30 to seal the glass bead to a glass cylinder 28.  The resulting oxide layer on the crystal is removed by an electrolytic cleaning process in which a solution containing 2 per cent. phosphoric acid is furnished from a tube 36, Fig. 9, to wash against the crystal surface.  A potential is applied between the crystal and solution by means of battery 43 and conductor 40.  In Fig. 13, the glass cylinder is again heated to seal a second glass bead assembly into the cylinder and to prevent oxidation of the crystal surface in this case, the upper portion of the cylinder containing the crystal 16 is surrounded by a heat-conducting mass 66 and the assembly is surrounded by an inert gas supplied from tube 35.
Patent GB-687341-A (GB)
Title: Improvements in or relating to the differential gears of tractors
Inventor: SENKOWSKI ALEXANDER
IPC: F16H48/30
Filed: 1948-03-03
Abstract: 687,341. Differential gearing. FERGUSON, Ltd., H. March 31, 1949 [March 3, 1948], No. 6724/48. Class 80 (ii). [Also in Group XXXI] A tractor differential gear has a friction lock between two members of the differential train adapted to be actuated by fluid pressure from a source for operating a hydraulically controlled implement, such as a plough. As shown in Fig. 10, a multi-plate friction clutch 19 is provided between one half shaft 64 and the cage 61 of the differential which is driven by the usual pinion and crown wheel 60, 59. The clutch is adapted to be disengaged by a spring 20 and engaged by fluid pressure supplied to a piston 74. As shown in Fig. 1, the fluid-pressure to the clutch 19 is controlled by a valve 17 with a handle 52 in a branch pipe 14 from a supply pipe 15 to the main actuator 4 for raising and controlling the implement 3. The fluidpressure to actuator 4 is controlled by a valve 6 in a manner as described in Specification 470,069, [Group XXXI], and when this valve is closed the weight of the implement maintains the pressure in pipes 15 and 14 to keep the friction lock clutch 19 engaged. The valve 17 is operated when desired to exhaust the pressure fluid in the clutch actuating cylinder and free the differential. An alternative control arrangement may utilise a pressure accumulator as described in Specification 632,214, [Group I]. As applied to a layshaft type of differential in which the driven bevel gear shafts drive the half shafts through reduction gearing, the said bevel shafts are adapted to be connected by a single plate type of friction clutch which is operated by fluid pressure in a manner as described above. Alternatively in this type of differential the clutch may be arranged between the half shafts.
Patent GB-1031034-A (GB)
Title: Improvements relating to the blow moulding of hollow bodies
IPC: B29C48/475
Filed: 1963-02-20
Abstract: 1,031,034. Blow-moulded barrels. M. RUDOLPH. Feb. 20, 1963 [Feb. 24, 1962; May 16, 1962], No. 6800/63. Heading B8D. [Also in Division B5] A stackable blow-moulded barrel 20, Fig. 10 (not shown), has a thick re-entrant bottom 11 having a flange 21 carrying metal studs 22. The upper shoulder of the barrel may be fitted with corner pieces 121 each having a bore 20c, Fig. 12 (not shown), which may act as a pilot bore for a hole through the barrel wall, which hole may be used to fasten a lid to the barrel, and may facilitate complete emptying of the barrel, no liquid being retained within the shoulder 20.
Patent GB-1516926-A (GB)
Title: Faceted parabolic-type reflector system
IPC: F21V7/10
Filed: 1976-02-20
Abstract: 1516926 Lamp reflectors ESQUIRE Inc 20 Feb 1976 [16 April 1975] 06806/76 Addition to 1512060 Heading F4R A reflector according to the parent Specification is made from a flat strip 105 of reflective material by cutting V-notches from two opposite edges of the strip to form two sets of segments on opposite sides of the strip. The end edges of the segments may be disposed at different angles to the axis of the strip and the V-notches may decrease in width from the centre of the strip towards either end. In a modification, V- notches are cut from all four sides of a generally square sheet of reflective material.
Patent GB-101078-A (GB)
Title: Improvements in Valve Mechanisms.
IPC: B60T15/18
Filed: 1916-05-12
Abstract: 101,078. National Safety Appliance Co., (Assignees of Folker, H. S.). Aug. 4, 1915, [Convention date]. Valves controlled by pilot or relay valves; alarms.-A valve device actuated by fluid pressura under the control of an auxiliary valve and particularly applicable for use with automatic train-stopping mechanism, is provided with a double-actuating diaphragm so arranged that a leak through either diaphragm gives a warning-signal and causes the valve to operate in the normal manner. The valve member j which controls the admission of fluid pressure to the main cylinder l is adjustably screwed into a bush r carried by the double diaphragm. The diaphragms h, i are secured to the bush r by a screwed ring r' and distance-piece v, and are clamped between two parts of the casing by bolts a<1>, a distance-ring u, provided with a vent u<2> leading to the atmosphere and undercut beneath the larger diaphragm, being fitted. The valve spindle has a restricted passage e through it, and the bush r is fitted with a perforated nipple F to establish communication between the pressure chamber d and a chamber g adapted to be vented through a pipe n when it is required to open the valve. The chamber is fitted with a spring-loaded auxiliary valve O adapted to close the restricted passage f and open a local vent q<4> when the main valve lifts.
Patent GB-940797-A (GB)
Title: Reflex photographic cameras
IPC: G03B7/06
Filed: 1960-02-26
Abstract: 940,797. Photographic cameras. R. HEIDECKE, and H. FRANKE, [trading as FRANKE & HEIDECKE FABRIK PHOTOGR. PRAZISIONS-APPARATE]. Feb. 26, 1960 [March 12, 1959], No. 6836/60. Heading G2A. In a photographic camera of the mirror-reflex focusing view finder type having an axially displaceable objective support and between-lens shutter, the speed and diaphragm setting means of which are interconnected by a differential gearing from which is derived the movement of the follow-up pointer of an exposure meter arranged on the camera housing, a lever is interposed in the transmission linkage between said gearing and said pointer, one point of said lever being coupled to the differential gearing, a second point being coupled to the follow-up pointer and a third point being coupled to an externally adjustable film sensitivity scale knob. As shown (Fig. 3a) a shutter speed setting ring 1 and a diaphragm aperture setting ring 2 are both coupled to differential gearing comprising a gear 3 on a rotatable ring 5. Drive is transmitted from the ring 5, which is toothed, to the follow-up pointer 39 of an exposure meter 41 by way of gears 11-13, a slide 7 mounted for vertical movement in the objective support (not shown), a lever 17 pivoted at 18 and coupled to the slide 7 by means of a pin and slot connection 15, 16, a spring-urged slide 29 engaging a pin 28 on the lever 17, a spring-urged lever 33 pivoted at 34, a cam arm 35 rigid with the pivot 34 and a spring-urged lever 37 rigid with the pivot 38 of said pointer 39. Film sensitivities and filter factors are allowed for by adjusting the position of the pivot 18 by means of a spring- urged bellcrank lever 19 and a snail cam 23 which is rotatably coupled through an axially slidable shaft 27 (Fig. 3b) to first part 42a of a two part setting knob 42a, 48. On depression of the part 42a against a spring 51, detent means 46, 47 coupling said two parts 42a, 48 together are released and the part 42a may then be rotated to set a different film sensitivity value, a film sensitivity scale plate 42 secured to the part 42a being visible through a window 43 in the part 48. The part 48 bears a filter factor scale 50 for setting against an index 49 and is engaged by a spring detent device 52 to prevent unintentional rotation. Change of the relative aperture of the objective on focusing may be allowed for by inclining the slot 15 of the slide 7 (of angle α) or by giving it a cam shape.
Patent GB-150667-A (GB)
Title: Improvements in or relating to carburettors for internal-combustion engines
IPC: F02M9/08
Filed: 1920-03-06
Abstract: 150,667. Soc. d'Exploitation du Carburateur Gobbi. Sept. 1, 1919, [Convention date]. Spray carburettors.-Consists mainly in providing a throttle valve in the form of a cylindrical or conical plug c, Fig. 2, having an opening at the bottom co-axial with the throat b<1> and fuel nozzle a, and an opening c‹ at the side to vary the induction passage b, the passage in the plug between these openings being curved to run smoothly into The throat and induction passage. The plug, which is pressed against the throat b<1> by a spring h, is rotated by a handle c<2> and has notches c<000> and c<00>, Fig. 1, which engage an adjustable stop f<1> in the open and closed positions respectively. When the plug is closed or slightly open, a groove c<0000> in the plug connects the passage e<4> leading from the slow-running nozzle i with the induction passage. The pin f<1> may be adjusted to vary the opening provided by the groove c<0000> corresponding to the closed position of the plug. The Specification as open to inspection under Sect. 91 (3) (a) describes also a main fuel nozzle a, a slow running nozzle j and means for attaching the cover l of the float chamber e. The main fuel nozzle a is connected with the float chamber by a passage e<2>, and has a constriction a<00> below the constant fuel level and openings a<0> leading to an annular well, the upper part of which is above the fuel level and surrounded by a bell a<2>. The slow-running nozzle j, Fig. 5 (Cancelled), is connected with the float chamber by a passage e<3> leading through a filter d<1> to a calibrated opening j<0> in a tube j which can be screwed on to a valve seat i<1>. The upper end of the tube j connects with the atmosphere through an apertured plug k. Fuel passes through opening j<00> into an annular well surrounding the tube j from which it is drawn into the induction passage through the passage e<4>. The cover of the float chamber has spring tongues l<1> engaging after the manner of a bayonet joint with a groove e‹‹ in the wall of the chamber e. This subject-matter does not appear in the Specification as accepted.
Patent GB-758857-A (GB)
Title: Improvements relating to thermionic valve circuits
Inventor: DRAKE BERNARD
IPC: H03F1/54
Filed: 1954-03-10
Abstract: 758,857. Unattended repeaters. SIEMENS BROS. & CO., Ltd. March 4, 1955 [March 10, 1954], No. 6933/54. Class 40 (4). [Also in Group XL (c)] The filaments of a valve provided with duplicate filaments or heaters are connected with resistors in a bridge circuit so that if either filament fails the other provides full energization of the valve. The arrangement is more particularly intended for unattended repeaters, e.g. in a submarine or subterranean cable. In an arrangement for a constant current filament supply, the current normally divides, one half passing through resistor R1 and filament H2 and the other half through filament H1 and resistor R2. The bridge is balanced so that bridging resistor R3 normally carries no current. If one filament, e.g. H1, fails, the circuit reduces to a series resistor, e.g. R1 in series with the operative filament, e.g. H2, in shunt with resistors, e.g. R2, R3. The value of the bridging resistor R3 is so chosen that the remaining operative filament then dissipates the same amount of energy as the two filaments in normal operation. In a circuit for operation from a constant voltage source. Fig. 2 (not shown), the bridge is arranged with the two filaments in adjacent arms, their common point being connected to one of the supply lines.
Patent GB-1260827-A (GB)
Title: Input signal converter for a solid state logic circuitry
IPC: H03K17/795
Filed: 1970-02-13
Abstract: 1,260,827. Semi-conductor switching circuits. SQUARED CO. 13 Feb., 1970 [7 April, 1969], No. 6.947/70. Heading H3T. [Also in Division G1] An .input signal converting circuit 10 for a solid state logic circuit comprises a pair of input terminals 24, 26 connected through a switch 42 to an A.C. or D.C. voltage source S, two circuits 34, 36 connected in parallel across the terminals, the first circuit 36 including a neon lamp 14, the second circuit 34 having a lower impedance than the first and including an incandescent lamp 12, and an output circuit 48 including a light sensitive photoresistor 16 physically positioned to be illuminated by the neon lamp and an impedance 22 connected in series with the photoconductor -across a D.C. voltage source 28, 32 for the logic circuit, there being an output terminal 30 which provides an output signal change when the photoconductor is illuminated by the neon lamp. The neon lamp, resistor and remaining circuitry may be enclosed in a suitable enclosure with only the lamp 12 and terminals located on the exterior thereof. In this the lamp 12 functions to indicate when the neon lamp is being energized by the source S. The low impedance path provided by the lamp 12 ensures that any stray voltage signals occurring at the terminals 24, 26 do not result in illumination of the neon lamp.
Patent GB-217299-A (GB)
Title: Improvements in or relating to the preparation of fibrous materials for spinning
IPC: D01H13/04
Filed: 1923-03-10
Abstract: 217,299. Fine Cotton Spinners' & Doubters' Association, Ltd., Balls, W. L., and Hutchins, F. March 10, 1923. Sliver conductors.-One or more pairs of vertical rollers 49 are mounted in front of the delivery rollers 10, 11 of apparatus for drawing cotton and other fibrous material, either to the extent of ordinary drafts or of high drafts of about two hundred. so as to render the fibrous ribbon fit for immediate use in a mule or other spinning machine.