baber/WOPTO huggingface dataset:
Patent GB-630742-A (GB)
Title: Improvements in mechanism for reversing reciprocating engines
IPC: F01L13/00
Filed: 1947-06-19
Abstract: 630,742. Engine valve-gear. NORDBERG MANUFACTURING CO. June 19, 1947, No. 16212. Convention date, Aug. 23, 1943. [Class 122(ii)] [Also in Group XXVII] A cam-shaft 23 or like timing member is adjusted angularly with respect to the crank-shaft 11 for reversing by means of a train of gears comprising fixed idler gears 29, 32, driving a fixed gear 34 which meshes with a gear 38, movable from position C for forward to position D for reverse running, and driving the shaft 23 through gears 39, 37. The gear 39 is carried in a yoke 45 pivoted on the shaft 23 and the gear 38, and spaced from the gear 39 by a frame 43, is carried by a yoke 47 pivoted at 35 and rotated by a servomotor 51 controlled by a lever 22. Adjustable stops 57, 58 define the positions of the gears for forward and reverse running respectively, and the weight of the gears 38, 39 and the torque reaction biasses the system to whichever position it is set in. A loading spring may increase the biassing force. The servomotor comprises two pistons 54. 55 in cylinders 51, 52, of which 51 is the working cylinder, the opposite ends of 52 being connected by a restriction so that it forms a dash-pot. The reversing gear train may be positioned in the space between two cylinders, the gear 26 comprising a ring-gear mounted in a groove surrounding a crank-shaft coupling 10.
Patent GB-746373-A (GB)
Title: New or improved control for change-speed gears
Inventor: FOERSTER HANS-JOACHIM
IPC: F16D67/00
Filed: 1952-06-30
Abstract: 746,373. Variable speed gearing. DAIMLER-BENZ AKT.-GES. June 30, 1952, No. 16409/52. Class 80(2) In a change speed gearing with a plurality of forward gear ratios each engageable separately by a respective clutch which couples rotating gear elements together, and, preferably with a fluid coupling 2 on the input shaft 3, means are provided for permitting simultaneous engagement of two gear ratios for obtaining a parking lock or for braking or locking the gearing before the engagement of a gear ratio which is engaged by positive means. As shown for a countershaft gear having three forward and one reverse gear ratios, the three forward speeds are introduced by the engagement of friction clutches 12, 13, 14 and the reverse gear by a dog clutch 18. Cams 30...33 on a control shaft 29 actuate the clutches through linkwork. In passing from the neutral position to reverse, projections 36, 38 on the cams 31, 32 cause simultaneous engagement of the clutches 13, 14. This locks the gear train, prevents movement of the vehicle fitted with the gear and enables the reverse gear clutch 18 to be engaged without shock. The teeth of the dogs on the clutch 18 may be tapered to facilitate engagement and disengagement,
Patent GB-1490766-A (GB)
Title: Wet scrubbing apparatus
IPC: B01D3/26
Filed: 1975-04-21
Abstract: 1490766 Wet scrubbing apparatus AMERICAN AIR FILTER CO INC 21 April 1975 [9 May 1974] 16410/75 Heading B1R A wet scrubber apparatus for gas cleaning comprises a flow through housing 10 with a dirty and clean gas inlet and outlet 11 and 12 respectively, first and second contact element restraining guides 13 and 21 which allow passage of gas therethrough; cleaning fluid inlet nozzles 18 and 26, a baffle 31 dividing the housing into a contact zone 16 and an element treating zone 23, a plurality of gas contact elements 17 loosely disposed in the housing and an element removal means comprising a sloping surface 42 with downwardly diverging slots 43 therein through which undersize elements fall and are collected via trough 44 on porous grid 51 while oversize elements are returned to the contact zone. In use the gas flow causes buoyancy of the elements 17 which move to the upper grid 21 and over baffle 31 and thence to the classifying surface 42. Undersize elements entering 44 trip a micro switch 48 with finger member 49, which actuates feed device 63 to allow fresh elements to enter the scrubber from hopper 61. Scrubbing liquid collects in reservoir 28 and is withdrawn via drain 29. A conduit 52 drains slurry from underside element disposal box 53.
Patent GB-840087-A (GB)
Title: Flow meter
IPC: G01F1/36
Filed: 1956-05-28
Abstract: 840,087. Flow-meters. BROWN, BOVERIE & CIE A.G. May 28, 1956 [May 26, 1955], No. 16441/56. Class 40 (1). [Also in Group XXIX] A flow - meter for measuring flow of gas in high-vacuum pipes, e.g. in the evacuation pipe of a mercury vapour rectifier, by measuring the pressure drop across a constriction, comprises two temperature-variable electrical resistors sensing the pressures, and two parallel paths for the gas flow, the resistance of one being variable to alter the sensitivity of the meter. As shown, resistors 3, 4 arranged in an electrical bridge circuit the unbalance of which is measured, are placed at the ends of a flow resistance due to the path 2 with or without that of the open valve 5 in parallel, according to whether higher or lower flow rates are to be measured. In an alternative embodiment, the path 2 may be replaced by a slot in the valve disc through which flow takes place when the valve is closed; a number of interchangeable valve discs may be provided for different flowrange ranges, or the slot may itself be variable in cross-section during flow measuring by a manually-operated screw. The mean pressure at the flow meter, which is required for flowrate calculation, may be obtained by measuring the power taken by an auxiliary pump in the flow path and adjacent the meter.
Patent GB-1174655-A (GB)
Title: Device for the Positioning of an Endless Belt
Inventor: SCHAMPHELAERE LUCIEN AMEDE DE
IPC: B65G39/16
Filed: 1967-04-11
Abstract: 1,174,655. Automatic edge guiding. GEVAERT-AGFA N.V. April 11, 1967 [Oct. 26, 1966], No. 16457/67. Heading G3R. Lateral deviations of the edge position of an endless belt are detected and signals dependent on the average deviation and the rate of change of the average deviation are utilized to restore the edge to a desired position automatically. As applied to an endless motor-driven metal belt, e.g. for casting film, the edge of the belt passes between the plates of a condenser arranged in an A.C. bridge circuit the output of which is rectified and compared with an adjustable reference voltage so that as the belt wanders laterally from a desired position a D.C. error signal is produced which is applied through a switch S 1 , Fig. 4, to two integrating amplifiers 30, 40. An inverting amplifier 34 ensures that the error signal is applied in opposite senses to the two integrators and a switch 16, camoperated at each revolution of the belt, changes over switches S 5 S 6  so that each integrator receives error signals alternately in opposite senses. Since, by virtue of different resistors R d , R dp , the time constants are different for integration in each sense, the outputs of the integrators are not only dependent on the average error but also on the rate of change of the average error. Cam-operated switch 16 also causes a switch S 3  to close at the end of each integrating period so that the integrator outputs, selected alternately by a switch S 7  operated with switches S 5 , S 6 , are applied to two Schmitt trigger circuits (not shown), one or other of which operates a reversible servomotor in the appropriate direction to move the belt to its desired position by adjusting one end of a skew roll over which the belt passes. The operated trigger circuit also closes a switch S 8  or S 9  so that a voltage of corresponding polarity is applied through a cam-operated switch S 2  and a resistor R o  to discharge the appropriate integrator, thereby causing the servomotor to run for periods dependent on the magnitude of integrator outputs. Cam-operated switch S 1  ensures that error signals are not applied to the control system during these periods. The Specification also refers to pneumatic, photo-electric or inductive edge detectors, the use of two servomotors, limit switches, and a belt tension responsive strain gauge controlling belt tension by adjusting roll position.
Patent GB-629404-A (GB)
Title: Improvements in methods of and apparatus for use in cheese manufacture
IPC: A01J25/11
Filed: 1945-06-28
Abstract: 629,404. Cheese; filters. FITZPATRICK, H. J. (Kraft Walker Cheese Co. Proprietary, Ltd.). June 28,1945, No. 16480. [Classes 46 and 84] In separating the final whey from curd in the manufacture of cheese, the curd and whey are subjected in a perforate revolvable drum, adapted to retain the curd and to allow the whey to pass therethrough, to intermittent rotary movement, while the axis of the drum is more or less horizontal. As shown, the drum consists of a perforate sheet metal central section 10<SP>1</SP> with imperforate converging extensions 11 with inlets 12 mounted in a frame 13 on a pair of rollers 20 on each side at the top. The frame 13 is mounted in trunnions 14 carried by a supporting frame 16 on a movable base adapted to be driven on lines 18 between two sets of vats 19 by an electric motor 31 and by means of a handwheel 33. The drum is rotated by means of an electric motor 28 through a reduction gear and spindle 26 connected by chain and sprocket gearing 25 to spindle 24 on which are mounted pinions 23 engaging toothed gear rings 22. The drum and frame 13 are tiltable about the trunnions 14 one of which may be fitted with a toothed quadrant engaged by a worm rotatively mounted on the frame 16 and fitted with a handwheel 29. A tray 37 beneath the drum catches the whey from which it is discharged to a launder 46 the curd being discharged into a vat by tilting the drum as shown in dotted lines. A portable centrifugal pump 40 is supplied whereby the curd and whey may be transferred from the vat to the drum and if necessary may be circulated to the same or another vat previously in order to firm the curd.
Patent GB-683054-A (GB)
Title: Improvements in brassieres
IPC: A41C3/00
Filed: 1951-07-12
Abstract: 683,054. Brassieres. GIL, M. M. July 12, 1951 [July 29, 1950], No. 16530/51. Class 141. A brassiÞre comprises two breast pockets B<SP>1</SP>, B<SP>2</SP> connected by a seam e, extending over a width less than the diameter of the bases of the pockets, and interconnected by an elastic band E, the pockets having on their insides reinforcements R<SP>1</SP> R<SP>2</SP> of inextensible fabric extending around the outer curves of the breasts from the front points of attachment b<SP>1</SP>, b<SP>2</SP> of shoulder straps to the middle of the lower parts of the pocket. Each reinforcement is preferably of the shape of half a frustum of a cone and they are bound along lines g<SP>1</SP>, g<SP>2</SP>, secured by stitching h<SP>1</SP>, h<SP>2</SP> and zig-zag stitching i<SP>1</SP>, i<SP>2</SP>. In a modification, the elastic band E is replaced by a larger piece of elastic fabric extending to the lateral extension pieces.
Patent GB-319036-A (GB)
Title: Appliances for indoor golf
IPC: A63F7/06
Filed: 1928-06-08
Abstract: 319,036. Tennyson, J. L. June 8, 1928. Table games.-In appliances for playing an indoor golf game including a rectangular putting surface C having one or more holes D and surrounded by raised " bunkers " B, the " bunkers " are provided with one or more gulleys or runways E to allow balls played onto the green to run off again. The game may be played either on the floor or a table, the balls being struck by miniature golf clubs with the object of holing out in as few strokes as possible.
Patent GB-594751-A (GB)
Title: Improvements in or relating to spray nozzles for descaling purposes
IPC: B05B1/04
Filed: 1945-07-02
Abstract: 594,751. Spray nozzles for descaling. HARLAND ENGINEERING CO., Ltd., DUTTON, F., and BOWIE, J. G. July 2, 1945, No. 16728. [Class 69 (iii)] An easily machined nozzle comprises a split disc forming a discharge nozzle 11 having perpendicular walls 10a, 10b which merge into the-divergent walls 12a, 12b and parallel faces 11a, 11b from which diverge the concave faces 13a, 13b. Fig.8 shows the disc secured by a cap 16 screwed to the body 14 which has a strainer 15.
Patent GB-633510-A (GB)
Title: Improvements in and relating to range finders for photographic cameras
IPC: G03B13/20
Filed: 1947-06-25
Abstract: 633,510. Photographic camera range-finders. KALART CO., Inc. June 25, 1947, No. 16781. Convention date, Nov. 10, 1941. [Classes 97 (i) and 98 (i)] A range-finder attachable to a photographic camera contains a lever system operated by the focusing movements of the camera lens to drive a wedge which operates the pivotal reflector of the range-finder system, the velocity ratio of the lever and wedge system being variable. One form. is shown with cover removed in Fig. 14, the operating elements located behind, and mainly carried on, the plate 72 in that figure being shown in Fig. 18. The range-finder has the usual light-entry and viewing windows, a semi-reflecting mirror 119 and a mirror 114 pivoted on trunnion screws 108 and operated by an arm formed in two parts ; one, 112, being stiff, the other, 106, somewhat flexible and adjustable relatively to it by a screw 113 and carrying a pin 103 projecting through the plate 72. A spindle 53 projecting through the range-finder casing carries at its outer end an arm which engages a projection on the camera bed adjustable for focusing. The arm is held in contact with the projection by the spring 67 acting on the arm 66 carried inside the range-finder casing on the spindle 53. The projection on the camera bed is eccentric and rotatable for adjustment purposes. Movement of the lever 66 is transmitted to a lever 76, pivoted at 75, through the rounded portion 84 of a leaf-spring 83 secured to a member 82 adjustable along the lever. The spring 84 permits some overtravel of the arm 66 caused by the movement of the external arm when the camera is folded. In an alternative construction this overtravel is provided by a spring-loaded pin and slot device in the external arm. This device also provides the relative adjustment of range-finder and focusing movements. The lower end 86 of the lever 76 bears against a member 88, pivoted at 89, in contact with which is held, by a spring 93. a wedge member 92 which bears on an adjusting screw 97 and operates the pin 103 through the inclined surface 102. The screw 97 is carried on a plate 98 adjustable along the casing wall and held in place thereon by a wire spring 101. The adjustments provided in the range-finder permit its use with camera lenses of different focal lengths.
Patent GB-1153162-A (GB)
Title: Collapsible Cores For Use In Casting Concrete Slabs
Inventor: GLOVER FRANK
IPC: B28B7/30
Filed: 1966-04-18
Abstract: 1,153,162. Collapsible cores. BRITISH LIFT SLAB Ltd. 11 May, 1967 [18 April, 1966], No. 16810/66. Heading B5A. A collapsible core for use in casting concrete slabs with grooves or passages therein, comprises a core in the form of a coil of flexible wire or rods and a plurality of form elements carried on the core and defining its shape. As shown the coil has a rectangular cross-section and the turns are loosely interconnected by wires 15. The form elements may be flat strips of plywood and are sealed at the corners by L-shaped metal strips. The core is removed from the mould by pulling one of the wires 15, thereby decreasing the cross-sectional area of the coil and allowing it to be removed, the unsupported boards then being lifted out.
Patent GB-917808-A (GB)
Title: Improvements relating to servo systems
Inventor: FUELL FREDERICK JAMES
IPC: F15B9/08
Filed: 1960-05-12
Abstract: 917,808. Fluid-pressure servomotor-control systems. FAIREY ENGINEERING Ltd. May 9, 1961 [May 12, 1960], No. 16863/60. Class 135. A duplicated servo system includes two servomotors acting simultaneously on a common driven member, the motor of one channel being more powerful than the motor of the other channel so as to override it in the event of a fault in the latter channel and means for putting the more powerful motor out of action in the event of a fault in that channel. In the embodiment shown, the pistons 22, 23 of the two servomotors are controlled by valves 20, 21, which receive signals from an automatic pilot. The piston 23 is twice the area of the piston 22 and the valves are so constructed that the pistons normally produce equal movements. If there is a fault in the motor 22, the piston 23 acts to override this motor and a valve 28 connects opposite sides of the piston 22. If there is a fault evident from the system this must therefore be in the motor 23 and manual or automatic means, such as a solenoid valve, operate to put the motor out of action, valve 29 connecting both sides of a piston 23 so that motor 22 operates the system. If automatic means are provided, this may include a small time delay before the motor 23 is put out of action. As shown, the motors 22, 23 act through a link 19 to operate on control valves 10, 11 of motors 12, 13 operating an aircraft control service 15. Movements under the automatic pilot are reproduced through links 16, 17 to the manual control lever and link 18 provides the feedback. An electrical feedback may be provided for the automatic pilot control.
Patent GB-1396311-A (GB)
Title: Car seat back adjustment mechanism
IPC: B60N2/235
Filed: 1971-05-25
Abstract: 1396311 Adjustable seat back mechanisms COX OF WATFORD Ltd 24 May 1972 [25 May 1971] 16937/71 Heading A4J [Also in Division E2] A mechanism for adjusting the angle of inclination of a vehicle seat backrest and allowing the backrest to be thrown forwardly about an axis to allow access to the rear of the seat comprises an intermediate plate 18 releasably connected to a backrest plate 15 by a pawl and notch or pin and slot mechanism and carrying a stop 28 engageable with the backrest-plate such that release of the plate 15 from the plate 18 allows the backrest to be thrown forwardly without altering the relative positions of the intermediate plate and the seat rest plate 14 to which the backrest plate is pivotally attached and the stop 28 on the intermediate plate, defines the pre-set adjusted position of the backrest plate. Plates 14 and 15 are coaxially mounted on a collar 16, eccentrically mounted on the axis through a pin. The plate 18 which is mounted directly on the pin 17 is held in position relative to the plate 14 by the inter-engagement of teeth on the plate 14 and on the plate 18, a spring 29 biasing the backrest rearwardly during adjustment of the inclination thereof. The releasable connection between the plates 15 and 18 comprises a pawl 25 pivotally connected to the plate 15 and engageable in a notch 22 on the periphery of the plate 18. In a modification plates 15 and 18 are releasably connected by a hairpin-shaped locking pin 50 loosely connected to the seat back and engaging in slots 52 in both the plates 15 and 18, disengagement of the locking arm being effected by lifting its free end. A torsion bar 35 extending between the two sides of the seat may replace the spring 29.
Patent GB-584244-A (GB)
Title: Combined shipping and display container
IPC: B65D5/52
Filed: 1945-07-03
Abstract: 584,244. Shipping and display containers. CHEERIO TOYS & GAMES, Ltd. July 3, 1945, No. 16953. Convention date, Dec. 2, 1944. [Class 18] [Also in Group XVIII] A combined shipping and display container comprises a standard knock-down container, e.g., of paperboard, with front and rear panels 11, 12 and tuck-in ends 13, 14, Figs. 1 and 2, doors 15 being formed by slitting the material of the front and an easel 18 being formed at the back. A shelf-forming insert is folded from the blank shown in Fig. 3, panel 23 forming a lower shelf supported on down-turned panels 38, 24, 29, panel 31 forming a back and panels 33, 22 a top shelf, while panel 46 forms a continuation of the back. Panels 38 constitute ends and panels 40 spacers. Apertures 50 serve to receive the rims of plates, saucers &c., tabs 17 permit the container to be hung on a wall and tab 16 serve for opening the doors. The container when used for toys may itself constitute part of the toy. Doll's dishes are referred to as part of the contents.
Patent GB-469874-A (GB)
Title: Improvements in fluid-operated piston apparatus
IPC: F01B17/04
Filed: 1936-02-03
Abstract: 469,874. Pneumatic pressure apparatus. MERZ, F. Feb. 3, 1936, No. 17033/37. Divided out of 471,055. [Class 8 (ii)] [Also in Group XXVI] In fluid-pressure-operated piston apparatus comprising a cylinder having a longitudinal slit through which passes an arm to the piston, and which is provided with a closing member controlled by the piston, the cylinder 1 is formed as a continuous toric ring, and the closing member is constructed and operated as described in Specification 470,088.
Patent GB-1265716-A (GB)
IPC: D21H19/40
Filed: 1969-04-01
Abstract: 1,265,716. Coated substrates.ROHM G.m.b.H. 1 April, 1969 [6 April, 1968], No. 17057/69. Heading B2E. [Also in Division C3] Coatings on paper, textiles &c are obtained by applying a composition comprising an aqueous dispersion of a resin containing at least 50% by weight of units of at least one ester of acrylic or methacrylic acid and, optionally, units of acrylic and/or methacrylic acid, the said composition also containing a water-soluble alkali metal silicate wherein the weight ratio of silicic acid (calculated as SiO 2 ) to alkali metal (calculated as Na 2 O) is at least 2.5:1 and the weight ratio of silicic acid (calculated as SiO 2 ) to resin is at least 0.228:1. The (meth)acrylic ester component of the resin, is preferably an alkyl ester having at least 3 carbon atoms in the alkyl group. To provide full-matt finishes, the compositions can include an inorganic pigment or delustering agent, e.g. barium sulphate or silica gel, optionally together with a dispersing agent therefor, e.g. ammonium polyacrylate. The compositions are particularly useful in providing coatings for washable wallpapers and for textile surfaces which can be washed, e.g. as in lampshades, upholstery, rigid furniture surfaces and wallcoverings.
Patent GB-660947-A (GB)
Title: Improvements in or relating to venetian blinds
IPC: E06B9/382
Filed: 1949-06-28
Abstract: 660,947. Venetian blinds. STEVENS, A. H. (Hunter Douglas Corporation). June 28, 1949, No. 17082/49. Class 20(iii) Plastic cross bars 3 .are made more rigid than plastic tapes 1, 2 carrying them, and are preferably formed by extending a vinyl plastic over aluminium reinforcing sheets 5. The flexible end parts 6, 7 of each cross bar 3 are not reinforced and have splayed ends 8, 9 for attachment to the ladder tapes 1, 2. Each slat 4 has open ended notches 12, which engage lifting cords 13 and facilitate the separate removal of each slat for cleaning &c. In a modification parts 15, Fig. 6, for engagement with cross-members ending short of the splayed end portions, are cemented or welded to the tapes 14 which are made of the same plastic material as that covering the cross-members.
Patent GB-724142-A (GB)
Title: Steroids
IPC: C07J75/00
Filed: 1952-07-08
Abstract: The invention comprises 11a ,21-diacyloxy-4-pregnene-3,20-diones, and the preparation thereof by reacting an 11a ,21-dihydroxy-4-pregnene-3,20-dione with an acylating agent, e.g. ketene, a ketene of a selected acid, an acid, acid chloride, or acid anhydride.  Examples disclose the use of acetic anhydride, propionic anhydride, formic acid, benzoyl and a  - cyclopentyl - propionyl chlorides as acylating agents. Specification 724,094 is referred to.