baber/WOPTO huggingface dataset:
Patent GB-479638-A (GB)
Title: Improvements in or relating to resilient shaft couplings
IPC: F16D3/74
Filed: 1937-02-15
Abstract: 479,638. Resilient couplings. GETEFO GES. FUR TECHNISCHEN FORTSCHRITT. Feb. 15, 1937, No. 4461. Convention date, Feb. 14, 1936. [Class 80 (ii)] A resilient shaft coupling comprises a number of concentric rubber layers 6, 7, 8, adhering to the end-faces of driving and driven discs, and the resiliency of the material of the individual layers increases successively radially outwards of the coupling, whereby the rubber is uniformly stressed under torque. The layers adhere to common discs 3 or to separate annular discs 24, 25, 26, bolted to the coupling flanges. The outer layer may diverge outwardly near its periphery, have a peripheral groove, or be considerably more resilient than the remaining lavers to reduce the stress thereon. The Specification as open to inspection under Sect. 91 includes also a construction in which the inner and outer peripheries of outwardly tapering rubber layers 16, Fig. 6 (Cancelled), adhere to concentric flanges 15, projecting alternately from the coupled discs 3. This construction does not appear in the Specification. as accepted.
Patent GB-792023-A (GB)
Title: Improvements in process for producing sodium fluoride from an alkaline earth fluoride
IPC: C01D3/02
Filed: 1956-02-13
Abstract: An alkaline earth metal fluoride is reacted with one or more of potassium aluminate, silicate and ferrite at a temperature at which the mixture is molten and the melt is quenched in sufficient water to dissolve most of the melt comprising potassium fluoride, but insufficient to dissolve the alkaline earth metal compound; the solution is separated and reacted with a sodium compound to obtain sodium fluoride.  Specified alkaline earth metals are calcium, magnesium, barium and strontium; the potassium silicate, aluminate and ferrite may be obtained by fusion of the appropriate oxide with potassium carbonate at 850 DEG , 975 DEG  and 1150 DEG  C. respectively; potassium chloride may be included in the silica melt; and the sodium compound reacted with the potassium fluoride may be sodium hydroxide, silicate or carbonate.  In the latter case, the temperature may be near the boiling point or at room temperature and the resultant by-product potassium carbonate together with any excess potassium silicate &c. may have an equimolecular proportion of the appropriate oxide added thereto and then be evaporated to dryness to form potassium silicate &c. for re-use.  It is stated that calcium silicate produced in the process is in the form of a fine powder and may be used as a filler or pigment, if desired after dissolving in hydrochloric acid, filtering and evaporating.  Specification 19738/08, [Class 1], is referred to.
Patent GB-750958-A (GB)
Title: Improvements in or relating to portable fluid pressure operated jacks
IPC: B66F13/00
Filed: 1954-02-16
Abstract: 750,958. Hydraulic jacks. BRANICK, C. E. Feb. 16, 1954 [Dec. 11, 1953], No. 4564/54. Class 78 (3). In a portable pneumatic lifting jack, a lifting carriage 17, provided with rollers 19, 20 engaging guides 9 secured to the cylinder 2, is suspended from the piston-rod 14 by links 16, and is provided with a pair of laterally adjustable crutches 25. Extension of the jack is effected by applying compressed air to a valve 26 on a pipe 27. Wheels 4 and handles 3, 3a facilitate movement of the jack.
Patent GB-409480-A (GB)
Title: Improvements in and relating to loft ladders and sliding stairways
IPC: E04F11/04
Filed: 1933-02-15
Abstract: 409,480. Loft-ladders. KNAPMAN, E. G., 60, Upper Maudlin Street, Bristol. Feb. 15, 1933, No. 4666. [Class 20 (ii).] A loft-ladder is slidably mounted on a closure a and when raised and lowered is caused to slide by means of ropes r, r, fixed at their ends f, f, and passing over pulleys k, k, o, o, q, q to counterbalance weights t, t, being attached to the sides of the ladder at s, s. The ladder may be provided with a hand-rail and a sliding extension.
Patent GB-1380181-A (GB)
Title: Data processing system for analytical instruments
IPC: G01R19/17
Filed: 1972-02-01
Abstract: 1380181 Data processing; measuring digitally PERKIN-ELMER CORP 1 Feb 1972 [1 Feb 1971] 4685/72 Headings G4A and G4H A plurality of analytical instruments, such as gas chromatographs or spectrographs are interfaced with a digital computer by way of voltage to frequency converters and registers for integrating pulses from the converters. In the system described, the instruments are individually addressed by the computer under program control, or may cause program interrupts, for the transfer of information between the computer and each instrument, e.g. to effect print-out at the instrument location. The computer is preferably programmed to selectively vary the gain of an amplifier preceding the analogue to frequency converter, to regularly sample the contents of the integrating register, to identify signal peaks and to determine their area relative to the signal base line. The program may also be arranged to analyse the output supplied by an instrument when no true signal is present and thereafter to set threshold levels for parameters such as the area under peaks. The computer may comprise a plurality of accumulator registers together with the usual memory address and data registers and an arithmetic and logic unit for performing arithmetic, logic, and shift operations on data in the accumulator and memory data registers, the analogue to frequency converters being at the instrument locations and the integrating registers being at the computer location.
Patent GB-384135-A (GB)
Title: Improvements in or relating to multiple head embroidery machines
IPC: D05C3/02
Filed: 1932-02-17
Abstract: 384,135. Grouped sewing-machines. WURKER GES., 16, Pirnaische Strasse, Dresden, Germany. Feb. 17, 1932, No. 4738. Convention date, Feb. 17, 1931. [Class 112.] Multiple head machines for embroidering on connected tambour frames have a sliding connection between the frames'and their actuating machines. The heads I, II, III have sewing mechanism actuated by a pulley 5 and shaft 6. These mechanisms form stitches in work held in frames 27 connected by rods 28 to a rod 13 with an arm 12 at right-angles. The frames are moved in two directions at right-angles by mechanisms a, b acting on racks 7, 8. The rack 8 acts on the rod 13 through pivoted levers 16, 18, 19, 21, 23. The connections 25 between these levers and the rod 13 are sliding connections. The connection 11 between the rack 7 and arm 12 is also a sliding one.
Patent GB-234027-A (GB)
Title: Improvements in and relating to means for attaching watches to the person or other positions
IPC: G04B37/14
Filed: 1925-02-20
Abstract: 234,027. Wilsdorf, H. Feb. 20, 1925. Cases, watch.-A watch case a is provided with a loop b opposite the winding stem c for the attachment of a leather strap or elongated tab d by which the watch may be attached to the wearing-apparel.
Patent GB-1209954-A (GB)
Title: Force measuring device
Inventor: ANDERSSON JOHN ERIK
IPC: H01J29/48
Filed: 1968-01-30
Abstract: 1,209,954. Force transducers. BOFORS A.B. Jan.30, 1968 [Feb.7, 1967], No.4822/68. Heading G1N. A transducer for measuring a force F (Fig. 1a) comprises a beam 1 fixed to a support 2 at one end and with a second, parallel, shorter beam 7 attached to the other, the force F being applied to the free end of beam 7, where in the resulting distortion of beam 1 is measured by strain gauge pairs 3, 4 and 5, 6 (latter pair not shown), located symmetrically on beam 1 under the point of application of force F, the pairs of gauges 3, 4 and 5, 6 being disposed at right angles to each other, as shown. The strain gauges are connected into a bridge circuit whose output is indicative of the force F. The arrangement is automatically insensitive to bending moment, transverse force, axial force and torque. The sensitivity is improved by making beam 1 a hollow tube Fig. 5 (not shown) or of I cross-section Fig. 4b (not shown), at least where the strain gauges are mounted. The second beam 7 may be tubular surrounding beam 1. The transducer assembly may form the stationary shaft of a pulley 12 Fig. 9 whereby the tension is a wire carried by the pulley may be measured. In another embodiment Fig. 6 two tubular further beams 7<SP>1</SP>, 7<SP>11</SP> are attached one to each end of tubular first beam 1. In a further embodiment Fig. 10 (not shown) a transducer at each end of a wheel axle may be used to measure the weight of the vehicle.
Patent GB-575650-A (GB)
Title: Improvements in or relating to tractor drawbars
IPC: B60D1/46
Filed: 1944-03-15
Abstract: 575,650. Tractor draw-bars. RUSSELL'S (KIRBYMOORSIDE), Ltd., DOWKES, W. A., and RUSSELL, G. E. March 15, 1944, No. 4831. [Class 103 (v)] A tractor draw-bar comprises a substantially horizontal cross-bar 1 from the ends of which extend converging stays 6, 10, one pair 6 being disposed substantially horizontally and the other pair 10 being inclined upwardly, the cross-bar having an upstanding post 13 from the upper end of which extends a pair of diverging stays 14 disposed substantially horizontally. The several pairs of stays are arranged on the tractor side of the cross-bar and the free ends of the lower pair of horizontal stays and the free ends of the inclined stays are adapted to be secured to suitable parts of the tractor, while the free ends of the upper pair of horizontal stays are secured to the inclined stays or a suitable part of the tractor. As shown, the cross-bar 1 comprises horizontal bars 2, 3 spaced apart and provided with registering holes 5 along the length through any one of which a coupling pin can be inserted to secure the trailer coupling. A vertical T-section post 13 is secured to the centre of the bars and the upper end is connected by the stays 14 to the stays 10 or the tractor frame. The post 13 is provided with a coupling jaw 16 slidable on the post and secured in any position thereon by a pin passing through holes 17 in the jaw and 18 in the post. This coupling provides a separate or additional means for joining the trailer to the tractor.
Patent GB-1364204-A (GB)
Title: Process for manufacturing cation exchangeable carbon fibre
IPC: B01J39/24
Filed: 1972-02-02
Abstract: 1364204 Fibrous carbon ion exchange material KUREHA KAGAKU KOGYO KK 2 Feb 1972 [4 Fob 1971] 4883/72 Heading C1A A fibrous carbon able to act as a cation exchange material, with a total exchange capacity of more than 1 milli equivalent per gram and having a specific electrical resistance of from 10-1 to 10<-4> ohm cm. is obtained by treating carbon fibre with a solution consisting of 2-96% by weight of nitric acid, from 2 to 45% by weight of potassium bichromate and from 2 to 80% by weight of water, the solution during the treatment being at a temperature up to its boiling point and the treatment lasting for a period of time of from 5 mins. to 10 hours. The amount of solution used ranges from 20 to 150 times the weight of the carbon fibre used.
Patent GB-1190241-A (GB)
Title: Containers for Pressurised Dispensing Cans
Inventor: BUTCHER ROGER ANTHONY
IPC: B65D83/14
Filed: 1967-02-01
Abstract: 1,190,241. Portable containers. AEROSOL INVENTIONS & DEVELOPMENT S.A. 1 Feb., 1968 [1 Feb., 1967], No. 4952/67. Heading B8D. [Also in Division Fl] A container receiving an aerosol dispensing can and a spacer C, comprises a cylindrical member B, e.g. of polyethylene, having a closed end F with an aperture E through which the dispensing can valve projects, and an open end G through which the can and spacer are inserted into the container, a base member D being detachably secured over the open end by screw threads H. A protective cap A, provided with vent holes M, is press-fitted on the container. The spacar may be in the form of a protective cap for the aerosol dispensing can. A handle may be moulded on the container for use as a garden insecticide pack. The container may be fitted with a brush or sponge for paint or upholstery cleaner. After use, the can and spacer may be replaced by a can of a size to fill the container.
Patent GB-879657-A (GB)
Title: Improvements in sterilising boxes
IPC: A61L2/26
Filed: 1958-02-14
Abstract: 879,657. Sterilizing boxes. G.U. STERILIZERS Ltd., and ZIEGLER, P. May 14, 1959 [Feb. 14, 1958], No. 4966/58. Class 81 (1). A sterilizing box is provided with perforations 15 and 5 in the lid and bottom of the box,.-the perforations being guarded by removable and renewable panels 18 and 4 of filtering material, which permit the passage of high-pressure steam in sterilization but prevent subsequent passage of bacteria into the box and wherein the filtering material panels at the bottom of the box 4 are held in place by a perforated plate 6 releasably clamped to the bottom of the box on the inside of the box. The filter panel 4 may be clamped to the inside of the box by the perforated plate 16. The portion of the lid which extends across the body of the box is recessed and the rim of the lid is provided with a deep skirt 12, the apex of the rim of the lid has a heat-resisting rubber packing 23 attached to it, which makes an airtight seal between the lid and the body of the box when closed. The lid is hinged to allow compensating movements of the lid to accommodate for inequalities in the interface between the lid and the body of the box by two plates 26 and 27 screwed to the lid and the body of the box respectively. Each plate has end lugs 28 for supporting a long pintle 29. On the lid pintle are two hinge plates 31 and 32 and on the pintle associated with the body of the box, the hinge plates 33 and 34, each pair being spaced apart by a sleeve 30. The plates 31 and 32 interengage with the corresponding hinge plates 33 and 34 on the opposite pintle. The hinge plates 31, 32, 33 and 34 have lugs 35 for pivotal reception of pintles 36 which connect them together. Behind the hinge is a back stop 37 which limits the outward movement of the said hinge and supports the lid when the box is fully opened. The lid of the box is locked to the body by toggle fasteners which incorporate a sealing means consisting of a stud 46 secured to the plate 22. The said stud passes through a hole in the toggle lever 42 and at its outer end is a lateral hole through which passes a wire 47 with a label 48. The sealing means is broken when the box is opened. The box is provided with feet 11 which are on the same centres as the screws 19 so that when stacked the feet of one box cover the screws 19 of the next. The filter panels may consist of polyester fibre, nylon, glass fibre or natural textile materials. The box is made of brass, copper, stainless steel or a synthetic plastic, it may be rectangular or any other conventional shape and may incorporate additional perforated panels and-associated filtering materials in the sides of the box.
Patent GB-824899-A (GB)
Title: Improvements in and relating to control valve assemblies for fluid pressure operated braking apparatus
IPC: B60T15/04
Filed: 1958-02-17
Abstract: 824,899. Fluid-pressure brakes. COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE. Feb. 17, 1958 [Feb. 19, 1957], No. 5044/58. Class 103 (1). In a control valve assembly for fluid pressure operated braking apparatus in which the braking effort is proportional to the load, a pivotally mounted lever has two arms, one of which is adapted to limit the degree of opening of the valve controlling flow of fluid under pressure to the brake cylinder and another arm which is connected to an equalizing piston subjected on one side to the fluid pressure in the brake cylinder and on the other side to atmospheric pressure, the pivot point of the lever being manually displaceable along an axis substantially coincident with that connecting the free ends of the two arms of the lever. In the control valve assembly for a tractor-trailer assembly illustrated, a tractor valve T and a trailer valve R are both actuated by a double arm rocker bar 3 and connecting-rod 2. The valves R and T each have a separate lever handle 15 and 151 respectively to control the load and braking pressure according to the load on the respective vehicle. Fig. 2 shows a section through II-II of Fig. 1 through trailer valve assembly R; the tractor valve being of similar construction as may be seen in Fig. 3 apart from the inclusion of a spring which ensures a certain delay in the operation of the tractor braking valve in comparison with the operation of the trailer braking valve R upon actuation of the rod 2. Under normal running conditions no pressure is applied to the plungers in the valves T and R such that the passage 11 leading to the trailer brake cylinders (Fig. 2) is open to atmosphere via aperture 12. Similar conditions hold good for the tractor brake cylinders associated with the valve T. For the braking condition, the control levers 15, 15<SP>1</SP> are preset to the loading conditions prevailing to displace sleeve 17 carrying lever 13 along an axis substantially coincident with that connecting the free ends of the arms of the lever 13, and the driver actuates the control rod 2 by means of a brake pedal (not shown) to force the plungers 4a of each valve downwards against a valve 9 thus breaking the connection between the braking cylinders and atmosphere and then continuing its downward movement ensures opening of valve 9 to admit compressed air to the braking cylinders and urge equalizing piston 18 downwards such that its action on lever 13 of the empty-load device limits the downward movement of plunger 4a and hence the degree of opening of valve 9 to restrict to a predetermined value the fluid pressure exerted on the brake cylinders to a function of the vehicle load as preset.
Patent GB-1425093-A (GB)
Title: Bending-mode piezoelectric strip assemblies
IPC: H02N2/04
Filed: 1973-02-01
Abstract: 1425093 Piezoelectric vibrators SIEMENS AG and BRAUN AG 1 Feb 1973 [10 March 1972] 5067/73 Heading H2A In a bending mode piezo-electric vibration system, a bronze supporting strip 5, two piezoceramic strips 1, two sets of electrodes 3, 4, and two further supporting strips 2 are all rigidly fixed at one end in a body 6, and are set into transverse oscillation by appropriate energization at the electrodes. The supporting strips 2, are mechanically pre-stressed to apply pressure to each electrode 3, and are of such width that the bending stress in the adjacent parts of the strips 1 decreases in the direction towards the body 6, e.g. as curves 13, 14, Fig. 2. The strips 2 may have the shapes of Figs. 3-6 (not shown), and may be 5-30% as long as the overall length of the system. They may alternatively be as long as the zone having a curvature of constant sign and their stiffnesses may be in proportion to their lengths. The vibration system may have only one strip 1.
Patent GB-1486541-A (GB)
Title: Mechanical face seal unit
IPC: F16J15/34
Filed: 1975-02-06
Abstract: 1486541 End face seals GOETZEWERKE FRIEDRICH GOETZE AG 6 Feb 1975 [6 Feb 1974] 5140/75 Heading F2B In an end face seal, e.g. for a pump rotor (22), counter-ring 11 is retained by a snap engagement with a rim 12 around the mouth of an elastomeric housing 1. The housing may engage with the edge 13 of the ring itself on with a flange (16, Fig. 2, not shown) on a collar (15), (20, Fig. 3, not shown) mounted on the counter-ring (14, 19). Grooves 12a and 13a are preferably provided to circulate the sealed fluid and promote cooling.
Patent GB-779375-A (GB)
Title: Drawing mechanisms for spinning machines
IPC: D01H5/56
Filed: 1955-02-21
Abstract: 779,375. Drafting mechanism. SKF KUGELLAGERFABRIKEN GES. Feb. 21, 1955 [April 10, 1954], No. 5155/55. Class 120 (2). A drafting mechanism for textile machines having a top roller carrier arm extending over at least one top roller and carrying top roller holders incorporating weighting means and retainable in its operative position by a catch mechanism incorporating a pressing means which extends through the arm and is under the influence of a spring is characterized in that the pressing means is arranged in the front part of this arm and has the form of a pressing button movable in the direction at right angles to the drafting plane the button being connected with the catch by at least one intermediate member. As shown in Fig. 2 a top roller carrier arm C is pivotally mounted on a bracket B by means of a bolt 11, the bracket B being supported from the roller stand in the usual manner. The catch mechanism comprises a catch 19 of channel cross-section which reaches around the frame 18 of the carrier arm such that its lower end 20 engages a nose 21 on the bracket B. A spring 24 urges the lower end 20 of the catch into engagement with the nose 21. The catch 19 carries a pin 25 which extends across the frame 18 and moves in a front and rear direction in a slot 26 in the frame 18 during pivotal movement of the catch 19. An eye 27 in a plate 28 engages the pin 25 and the plate 28 is attached to a pin 29 carried by a shoulder 30 on the inner surface of the frame 18. The plate 28 has a key 31 which projects through an opening 33 in the frame 18 such that when the key 31 is pressed the plate 28 is bent thereby moving the pin 25 in a forward direction and causing the latch 19 to swing so that its lower end 20 is withdrawn from the nose 21. The carrier arm C may then be swung in an upward direction on the bolt 11. In the arrangement of Fig. 4 a movable button 48 is provided to release the catch 38 from engagement with the nose 21 through the system of levers clearly shown. In further similar embodiments a wedge shaped operating member is used to move the catch and in a further embodiment a press button operates on a pivoted lever which in turn operates on the catch member to disengage the latter when the button is pressed. In two other embodiments the catch means is provided at the front end of the arm and is operated by a press button engaging a bell crank lever in one instance and in the other by a press button having a wedge shaped formation which engages between two members operating like scissors and having hooked ends for engaging a T-shaped portion on the machine frame.
Patent GB-285506-A (GB)
Title: Improvements in or relating to railway rail joints
IPC: E01B11/10
Filed: 1928-02-18
Abstract: 285,506. Hesse, J., (Assignee of Schleiniger, C. A.). Feb. 18, 1927, [Convention date]. Rail joints, bridge; rail joints have one or two wedges 6, 7 inserted in recesses in the abutting rail ends and wedged in position by the pressure of the fishplates 4. The wedges fit the recesses vertically but space is left at the ends for expansion. The rails rest on a plate 8 shaped to fit the sleepers and bolted at 9 to flanges 10 on the fishplates. These flanges are shortened at each end and are removed at the centre of each sleeper to receive the rail clamps. The wedges are of different shape to prevent interchanging.