baber/WOPTO huggingface dataset:
Patent GB-1203830-A (GB)
Title: Controlled variable speed stacking device for publication conveyor systems
IPC: B65H31/18
Filed: 1969-02-10
Abstract: 1,203,830. Stacking sheets. STA-HI CORP. 10 Feb., 1969 [13 June, 1968], No. 7038/69. Heading B8R.  A stacking device including stack support members moving in a common continuous path downwards past the end of a conveyer and then upwards through a return region is characterized by sheet sensing means acting on an upper extremity of a stack being formed and automatically controlling the drive means for the support members to maintain the top of the stack within a predetermined distance from the conveyer. General arrangement.-The apparatus is generally similar to that disclosed in Specification 1,203,829 and may include the feature of independent drive for alternate stack support members (Figs. 1 and 5, not shown). Sensing height of stack, Fig. 4.-The sensing means 18 is located immediately above the path of travel of publications from the conveyer belts (22, 24), (Fig. 1, not shown), to the stacking region (26), (also Fig. 2, not shown), and comprises a sensing arm 72 which rests on the top of a stack being built up on a support member (28) travelling downwards through region (26) on a conveyer chain. The arm 72 is pivotally connected to frame 74 by a plate 76 pivoted on shaft 78; the plate 76 is resiliently urged by spring 80 to bias arm 72 into engagement with the stack. A recess 86 in plate 76 co-operates with the control bar 81 of a differential transformer 84 supplying the power to the main drive of the support member conveyer chain; thus pivoting of arm 72 due to changes in the position of the top of the stack with respect to conveyers (22, 24) causes compensating changes in the drive for the support members. In the event of a major movement of arm 72, the plate. 76 contacts actuating pin 96 of a safety limit switch 90 which cuts out transformer 84 and applies full power to the drive until the position of the top of the stack is again within the differential control range.
Patent GB-427060-A (GB)
Title: Improvements in and relating to the manufacture of hollow bodies
IPC: B29D22/04
Filed: 1934-03-06
Abstract: A method of making rubber hollow bodies such as playing balls, consists in joining shaped plates of vulcanized or unvulcanized rubber together with overlapping seams, partially inflating the article, and vulcanizing the seams and, if unvulcanized rubber is used, the whole of the body, in a vessel under heat and pressure, the ball or like being confined in an open ended sleeve which limits its expansion.  After vulcanization and cooling the ball is inflated to its final shape.  Preferably the vulcanizing vessel contains water on which the ball floats, flattening of the lower part being thus avoided.  The sleeve may be a cylinder of diameter equal to its length, the diameter being less than the diameter of the finished ball.  The vulcanizing vessel is preheated before the insertion of the article and the pressure is raised rapidly so that partial vulcanization takes place to strengthen the walls of the article before the air imprisoned therein becomes heated and expands.
Patent GB-715289-A (GB)
Title: Improvements relating to electrical pulse generating circuits
Inventor: CHURCHILL JOHN LESLIE WESTON
IPC: H03K29/00
Filed: 1952-03-19
Abstract: 715,289. Pulse generating circuits. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. March 19, 1953 [March 19, 1952], No. 7121/52. Class 40 (6) A circuit for generating a pair of pulses comprises an arrangement of multi-grid valves which are rendered conducting in sequence to generate the pulses, each valve having its anode connected to a grid of the preceding and succeeding valves so that when a first valve is cut-off until a coupling capacitor re-charges to allow the next valve to conduct whereon by regenerative action the next valve conducts heavily and the first valve is cut-off. Fig. 1 shows a pulse-pair generating circuit in which valves V1, V2 are initially cut-off and valve V3 conducting. When a negative triggering pulse is applied at the input A-valve V3 is cut-off at its suppressor grid and the rise in its anode voltage renders valve V1 conducting the fall in its anode voltage defining the leading edge of the first pulse of the pair which appears at output A. This fall in voltage holds valve V2 cut-off at its control grid until capacitor C1 recharges sufficiently via resistor R8 when valve V2 conducts to define the leading edge of the second pulse of the pair at output B. Immediately V2 conducts V1 is cut-off to define the trailing edge of the pulse at output A. Valve V3 remains cut-off at its control grid until capacitor C2 re-charges when V3 conducts and V2 is cut-off to define the trailing edge of the pulse at output B. The circuit may be made free-running by returning the control grid of valve V1 to H.T.+. Positive trigger pulses may be used applied to the control grid of valve V1 at input A+. In a modification shown in Fig. 3 valves V1, V2, V3 and V1<SP>1</SP>, V2<SP>1</SP>, V3<SP>1</SP> are each arranged in a circuit similar to that of Fig. 1 so. that if a negative trigger pulse is applied at input A the first pulse of the pair is produced at output A and the second at output B ; if, however, the circuit is triggered at input B the first pulse of the pair is produced at output B and the second at output A. Thus the order of appearance of the pulses of the pair can be reversed. Diodes D1, D1<SP>1</SP> and D2, D2' prevent interaction between the circuits and diodes MR1, MR2 limit the negative going amplitude of the output pulses.
Patent GB-839518-A (GB)
Title: An adaptor for use with disc talking machines
Inventor: GUEST LAWRENCE VINCENT
IPC: G11B17/022
Filed: 1958-03-05
Abstract: 839,518. Gramophone turntables. BIRMING- HAM SOUND REPRODUCERS Ltd. Feb. 9, 1959 [March 5, 1958], No. 7151/58. Class 40 (2). Means for adapting a turntable spindle for records with large and small centre holes comprises an element for locating records with large holes which is movable substantially parallel to itself in alternative directions with a snap action. The first embodiment comprises an adapter having a movable element 1 for locating the large hole records and a stationary element 8 which is a force fit on the turntable spindle and has leaf spring elements 9 which engage under compression slots in the interior surface of the element 1 and act as toggle elements to either retain the element 1 in a downward position, as when a record with a small centre hole is played, or in the upper position as shown in Fig. 3, as when a record with a large centre hole is played. In a second embodiment, Figs. 4 and 5, the toggle springs comprise a single triangular element 28 having prongs 29 which engage slots in a boss 21 beneath the turntable. A movable record locating element 23 is provided with three extending portions 26 which pass through apertures 27 in the turntable and are secured to the spring element 23 at points midway between the prongs 29.
Patent GB-253592-A (GB)
Title: Improvements in or relating to keys for railway and like tracks
IPC: E01B9/50
Filed: 1925-03-17
Abstract: 253,592. Willich, J. S. de V. von. March 17, 1925. Chair keys and chair keyways are both constructed so that as the key is driven home it rotates about any desired axis. Both the rate of rotation and the rate of taper may vary along the length of the key. P - - P2 represent the centres of rotation of successive sections with arcs W - - Z having as centres Q - - S. P - - P2 may be stationary or may approach or recede from the rail vertically or horizontally. For lightness, metal may be omitted in various ways. Specifications 253,590 and 253,591 are referred to.
Patent GB-953252-A (GB)
Title: Improvements relating to cooling arrangements for dynamo-electric machines
Inventor: DORRAT JAMES IAN
IPC: H02K9/16
Filed: 1962-02-23
Abstract: 953,252. Dynamo-electric machines; cooling. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 13, 1963 [Feb. 23, 1962], No. 7205/62. Heading H2A. A totally enclosed fan-cooled dynamo electric machine comprises a stator 2 and rotor 3 totally enclosed by a frame 1, a plurality of tubes each of which has a longitudinal portion 7 extending longitudinally along and spaced from the outer surface of the frame and two radial portions 8 extending respectively from the ends of the portion 7 and projecting through the frame so as to connect with the inside of the frame, a plurality of ducts 9 each enclosing the longitudinal portion of at least one of the tubes, and means for passing a cooling fluid stream through the ducts and over the frame outer surface. As shown, the means is a fan 6 which impels an air flow through a cowl 12 which constrains the flow to enter the ducts 9 and also to pass over additional ribs, not shown, if provided on the frame between the ducts. A fan 13 circulates cooling gas within the frame 1.
Patent GB-330301-A (GB)
Title: Improvements in or relating to devices for securing the ends of cables to magneto distributors or other apparatus
IPC: H01R13/62
Filed: 1929-03-06
Abstract: 330,301. British Thomson-Houston Co., Ltd., Griffiths, L., and Morton, C. J. March 6, 1929. Couplings.-To secure the ends of a pair of cables in recesses in a magneto distributor or the like, the ends are provided with shoulders 4, preferably formed on sleeves surrounding the cables, which shoulders are engaged by a slightly arched spring strip 5 removably secured to the apparatus between the recesses by a screw 7. The screw head is elongated and in locking the strip, rests in a transverse depression 8. If given a quarter turn, the screw releases the strip owing to the head passing through a slot in the strip.
Patent GB-724448-A (GB)
Title: Improvements in or relating to lighter structure
IPC: F23Q2/08
Filed: 1953-03-17
Abstract: 724,448. Pyrophoric lighters. RONSON ART METAL WORKS, Inc. March 17, 1953 [April 9, 1952], No. 7308/53. Class 75 (3). The closure cap adapted to cover the wick-tube or gas-nozzle type of burner' in a pyrophoric lighter is loosely supported on an arm extension of a clutch member adapted to rotate the sparking wheel when the cap is lifted from the burner into an active lighting position. As shown in Fig. 2, the cap or snuffer 30 of a wick-tube burner 12 is located within an inverted box-like closure lever 13 pivoted about the shaft 24 of the spark wheel 21 and operated by depressing a finger piece 14 integral with a rack bar 22 which co-operates with a pinion wheel 23 projecting through a correspondingly tooth shaped aperture in the side of the closure lever so as to drive this lever. The cap 30 is loosely mounted in the slot 38, Fig. 7, in the bifurcated end of an arm 29 of a clutch member 26 by means of a head 40 larger than the slot-width and connected to the main cap portion 39 by a stem 41 located in the slot and of length greater than the slot depth so that the cap can tilt as well as move along the slot. The clutch member 26, preferably of resilient sheet metal is mounted on the shaft 24 between the side of the sparking wheel provided with clutch teeth and the pinion 23 and is provided with a pawl portion 35 for engaging the clutch teeth to rotate the sparking wheel 21 when the clutch member 26 is rotated clockwise in Fig. 2 (the pawl 35. riding over the teeth in the anti-clockwise rotation) and also with a positioning tongue 34 which presses against the inner wall of lever 13. The clutch member .26 is driven by the lever 13 by engaging the under side of the top wall of lever 13 with the portion 29 on one side of the shaft 24 and with the tab 37 on the other side of the shaft. The cap 30 is held in engagement with the burner 12 by pressure of spring 29 exerted through. the closure lever 13 on an annular shoulder 42 on the cap.
Patent GB-1024314-A (GB)
Title: Catalyst preparation and use
IPC: B01J37/02
Filed: 1964-02-21
Abstract: Ethylene and propylene yield straight chain butenes and hexenes respectively in the presence of a catalyst comprising Co or Ni on activated carbon which has been prepared by contacting the carbon (pretreating with HNO3) with aqueous Co(No3)2 on Ni(No3)2, removin substantially all the water and suspending the impregnated carbon in a fluidized bed under increasing temperature conditions, saturating with water at 180-220 DEG  C. and heating at up to 300 DEG  C. to decompose the salt. Propylene for example is pressurized at 680 p.s.i.g. at 40 DEG  C. for 21 3/4 hours in an autoclave.ALSO:In a process for the preparation of catalysts comprising Co or Ni and activated carbon, the activated carbon is pretreated with HNO3, impregnated with aqueous Co(NO3)2 or Ni(NO3)2, all of the water therein is removed, the carbon is suspended in a fluidized bed by means of inert gas under conditions of increasing temperature, the bed is saturated with water when the temperature reaches 180-220  DEG C., the heating is continued until all the water has been removed and thereafter the temperature is raised to not more than 300  DEG C. to complete salt decomposition.  The catalyst may contain 5-30% metal or carbon. The carbon may be 8-12 mesh coconut charcoal.
Patent GB-1183291-A (GB)
Title: Rectifier Arrangement
Inventor: VOGT HERBERT
IPC: H01L25/11
Filed: 1968-02-14
Abstract: 1,183,291. Semi-conductor devices. SIEMENS A.G. 14 Feb., 1968, No. 7337/68. Heading H1K. A pair of semi-conductor rectifiers 51, 52 is mounted in a space 21 between two bus-bars 11, 12 separated by an insulating spacer 2, with the anode of rectifier 51 contacting the bus-bar 11 and the cathode of rectifier 52 contacting the bus-bar 12. A contact member 3 situated between and electrically connecting the rectifiers has two arms 31, 32 which are urged against the contact faces of the respective rectifiers by a spring 4. As shown the faces 310, 320 of the arms 31, 32 may be convex to allow for slight adjustment of the angle between the contacting surfaces. Alternatively the faces 310, 320 may be planar and the corresponding contact faces on the rectifiers may be convex. The bus-bars 11, 12 are made of Al and are provided with cooling fins. In the embodiment three pairs of rectifiers are mounted, each pair being situated in an aperture 21 extending through the single insulating spacer. Part of each of the contact members 3 extends through a corresponding channel 22 in the spacer 2. The bus-bars 11, 12 are joined via an end flange (113, 123), Fig. 1 (not shown), on each bus-bar, which is bent over a corresponding protrusion (124, 114) on the other bar and spaced therefrom by an insulating member (62, 61). The bars are secured together by bolts, screws, rivets, &c. In other embodiments the contact member 3, Fig. 2, does not comprise a unitary structure as illustrated, each pair of rectifiers may have its own spacer 2, the inner surfaces of the bus-bars may be stepped so that each rectifier contacts the corresponding bar in a different plane, or each pair of rectifiers may be enclosed within the aperture 21 by sealing the spacer 2 to the bus-bars 11, 12 and by sealing the channel 22. Each rectifier such as 51 comprises a Si PN junction wafer held by pressure in a gas-tight housing between mutually insulated metal cover-plates. The cover-plates may be made of a ductile material, or a layer of such material may be provided between each plate and the wafer.
Patent GB-270654-A (GB)
IPC: B60S1/66
Filed: 1927-03-17
Abstract: 270,654. Gamard, H. May 7, 1926, [Convention date]. Actuating by gas pressure; diaphragm and flexible chamber pumps.-A pump for washing motor cars, cleaning carpets, &c. and adapted to be operated by the pressure and suction in one of the engine cylinders comprises a chamber 1 divided into two parts 2, 3 by a pear-shaped flexible member 22. The chamber 2 communicates with the engine cylinder by a pipe 18 which replaces a sparking plug, and the chamber 3 is provided with suction and delivery valves 6, 7. A non-return valve 20 allows air to be drawn into the engine cylinder during the suction stroke. Several pumps may be operated by different cylinders to give a more regular delivery. An air vessel &c. may be provided on the delivery pipe. In the Specification as open to inspection under Sect. 91 (3) (a) other forms are described comprising a chamber divided by a simple diaphragm or bv the tubular membrane shown in the original Fig. 2. This subject-matter does not appear in the Specification as accepted.
Patent GB-566119-A (GB)
Title: Combined view finding and focusing devices for cameras
IPC: G03B13/20
Filed: 1943-05-11
Abstract: 566,119. View-finding and focusing devices for cameras. BOLSEY, J. May 11, 1943, No. 7469. [Classes 97 (i) and 98 (i)] A combined view-finding and focusing device for kinematograph cameras comprises a viewing ocular which is movable between a view-finding position and a position in which it co-operates with the camera lens for focusing. As shown, the ocular comprises a tube 19 containing lenses 20, 21 and pivotally mounted so that it may be moved from the horizontal position, in which it cooperates with the view-finder objective 17, to the inclined position shown in broken lines, in which it co-operates with the lens 3 to focus the image. A deflecting prism 50 and lens system 51 are arranged between the lens and ocular. A spring-closed hinged door 52 closing an opening in the base of the view-finder chamber is lowered to the position shown in broken lines when the ocular is inclined to allow light to pass from the lens to the ocular. Three lenses are carried on a turret 2, so that each may occupy the focusing position 3 or the taking position 4. When the turret is turned, a notched ring 40 turns with it and forces a pin carried by a spring 35 out of a notch, so moving the spring to the left and causing it to release a pivoted warning arm 30, which is then raised by a spring into the field of the view-finder. Unless the turret is correctly adjusted, with a lens in operative position, the arm 30, when returned by hand, will not be returned by the spring 35. Additional pivoted lenses 28 may be turned into operative position to adjust the view-finder for different objectives. A glass plate 22 carrying cross-lines is slidably mounted in the view-finder between inclined guide surfaces 25, and is adjusted by a screw 26 against the action of a spring 27 to correct the parallax error of the finder.
Patent GB-492174-A (GB)
Title: Improvements in or relating to motion picture apparatus employing film magazines
IPC: G03B19/18
Filed: 1937-03-15
Abstract: 492,174. Kinematograph apparatus. KODAK, Ltd. March 15, 1937, No. 7501. Convention date, April 24, 1936. [Class 97 (i)] In apparatus wherein a driving member normally extends into a magazine chamber, retraction of the driving member therefrom is effected by the film magazine as it is inserted endwise into the chamber ; the retraction, may be effected through a linkage or by the engagement of cam surfaces. As shown in Fig. 2, the driving member comprises a clutch element 16 having teeth 45 extending through the wall 13 of the magazine chamber. The magazine 33 has a toothed clutch element 43 on a shaft 38 housed in a fixed bushing 36, and the shaft 38 also carries a sprocket 40, engaging the film F, and a cap 39 having pinion teeth 41 meshing with a gear 42. The element 16 has a reduced stem 28 passing loosely through an opening 24 in a driven cap member 20 provided with pinion teeth 25 and a gear 26 ; the stem 28 and opening 24 are formed with flats to provide a driving connection, and the loose engagement permits the clutch members to engage even if they are not in exact alignment. Retraction of the element 16 is effected, against the action of a spring 32 engaging between collars 30, 31 on the stem 28, through levers 46, 48 and a pin 50, Fig. 1, having a tapered end 52 engaging the lever 48. Insertion of the magazine 33 endwise into the chamber 14 causes the rounded corner 56 of the magazine to depress the pin 50 against the action of a spring 54 and to retract the clutch element 16 ; the rear rounded corner of the magazine, when the magazine is completely inserted, permits the pin 50 to rise, and the clutch elements to engage. A modification is described in which the linkage system is ,omitted, and the teeth 45 of the element 16 have sloping cam surfaces which engage the leading edge of the magazine to effect retraction as the magazine is inserted. Sloping surfaces at the bases of the teeth on the element 43 also assist in effecting the retraction as the magazine is withdrawn.
Patent GB-1177135-A (GB)
Title: Electric Fuse with an Indicating Device
Inventor: SHIMKIN IZHAK
IPC: H01H85/32
Filed: 1967-02-16
Abstract: 1,177,135. Fusible cut-outs. I. SHIMKIN. 16 Feb., 1967 [17 Feb., 1966], No. 7563/67. Heading H2G. Blowing of a fuse 6 is indicated by lighting of a discharge lamp 9 by a current which passes through at least one resistor 10, 10a, the blown condition of the fuse still being indicated by the lamp 9 when the load switch 13 is opened due to the provision of a high resistor 14 between the outlet side of the fuse and a neutral or earth line 2. The fuse may be of bridge carrier type with a fuse wire or cartridge or may comprise a fuse cartridge screwed into a holder. The lamp as well as the resistors may be secured to the fuse base.
Patent GB-1017836-A (GB)
Title: Improvements in and relating to doors for vans and the like
IPC: B60J5/12
Filed: 1963-02-26
Abstract: 1,017,836. Vehicle doors. P. McGIRR. Feb. 26, 1963 [April 27, 1962], No. 7570/63. Heading B7B. A van door has an upper section 6 hinged at 9 to the roof and at 7 to a lower section 5 which is provided with rollers 11 to engage guides 10 and the door may be counterbalanced by a spring wound roller 14 connected to the door by ropes &c.
Patent GB-1143194-A (GB)
Title: Method and apparatus for lining a borehole as a boring bit advances in the ground
IPC: E21B7/20
Filed: 1966-02-22
Abstract: 1,143,194. Boring earth &c. CARRIERES ET ATELIERS STENUICK FRERES S.p.r.L. 22 Feb., 1966 [7 Oct., 1965], No. 7615/66. Heading E1F. In an apparatus for simultaneously boring and lining a hole a bit 9 is asymmetric about its rotational axis and is attached to a percussion unit 8 supported by a rotating shaft. A lining 13 has outer and inner diameters such that it can be rotatably lowered into the hole drilled by the bit and such that the bit can be withdrawn along the inside of the lining. Projections 13<SP>1</SP> on the lining act as guides for unit to centre the bit during drilling. Winches and cables are provided for removing the bit and/or lining.
Patent GB-1142154-A (GB)
Title: Method and device for the loading of ores
IPC: B65D90/54
Filed: 1966-02-22
Abstract: 1,142,154. Control of ore down mine-shaft. E. VINCENT. 22 Feb., 1966 [2 March, 1965; 11 May, 1965; 5 Nov., 1965], No. 7624/66. Heading B8S. Material which falls down a shaft in a mine has two layers 52 and 53. The bottom layer 52 rests on plate 22 and is normally stationary. The upper layer 53 flows down over layer 52 and its flow is governed by fork 9 pivoted at 12 and operated manually by rope 11. When a boulder 13 blocks the passage of layer 53, plate 22 is operated by fluid cylinder 17 to move outwards and the disturbance of material overcomes the blockage and re-establishes the flow of material. Plate 22 carries pusher 20 and together they slide by means of wheels 16 in guides 3 under the impulse of the cylinder 17, the whole being pivoted at 7 so that the inclination of the guides 3 may be changed. Alternative forms of forks 9 and plate 22 are described.
Patent GB-929625-A (GB)
Title: Improvements in and relating to circular knitted seamless stockings
IPC: D04B1/26
Filed: 1960-03-04
Abstract: 929,625. Knitting. SCHUBERT & SALZER MASCHINENFABRIK A.G. March 4, 1960 [Aug. 27, 1959], No. 7702/60. Class 74 (2). A stocking has an inturned welt such that the transfer course ends at W which is either the front or rear edge formed when the stocking is folded sideways. For this purpose additional butts on the needles or jacks are provided to ensure the transfer operation occurring in a course and ending at the front or rear of the stocking.