baber/WOPTO huggingface dataset:
Patent GB-534758-A (GB)
Title: Improvements in or relating to piezo-electric apparatus
IPC: H04R17/00
Filed: 1939-11-11
Abstract: 534,758. Piezo-electric crystal mountings. BRUSH CRYSTAL CO., Ltd. Nov. 11, 1939, No. 29882. Convention date. Nov. 14, 1938. [Class 40 (v)] A piezo-electric unit 1 of the flexing type comprises a stack of crystal plates 1a - 1d which are clamped at three corners between a cast box 2 and lid 3 by devices 9, 10, the fourth corner being provided with a driving pin 7. The supporting units 9 comprise a pair of hard metal plates 11 between which is a metal ball 12 held in place by a soft rubber retaining ring 13. The crystal unit is pressed against the units 9 by means of resilient members 10 arranged between the corners of the crystal unit and the box 2. Small variations of the supporting units are described. The retaining ring 13 may be dispensed with and the ball held during assembly by grease or by the parts being magnetized. Specification 506,211. [Group XXXVI], U.S.A. Specification 2,105,011 and Reissue 20,213 and 20,680 are referred to.
Patent GB-813051-A (GB)
Title: Improvements in and relating to cop winders
Inventor: MACKIE JOHN KAY PRINGLE
IPC: B65H59/20
Filed: 1955-10-19
Abstract: 813,051. Winding bobbins; yarn guides; tension arrangements. MACKIE & SONS Ltd., J. Oct. 5, 1956 [Oct. 19. 1955], No. 29884/55. Class 120(2) In a cop winder the yarn, after passing through a tensioner, is laid on the nose of the cop by an oscillated traverse member which applies a substantial frictional drag to the yarn very near the point at which the yarn is laid on the cop, arid which defines for the yarn a sinuous path the character of which does not change when the traverse member reverses, so that the magnitude of the drag does not vary substantially at the instant of traverse reversal. In one embodiment, Fig. 1, yarn from a supply package passes through a tensioner 16 to a guide eye 18 at the end of an oscillated traverse arm 12 on a rocking shaft 14. The eye 18 is disposed so that the yarn is always in contact with two oppositely curved friction surfaces 15, 17 which exert on the yarn a frictional drag which does not alter at the instant of traverse. In another embodiment, Fig. 3, drag is applied by surfaces 34 which define a sinuous path for the yarn; the sinuosity can be varied by adjusting finger 31 relative to finger 30 by means of a bolt and slot connection 33. Surfaces 25 or 34 may project laterally from their supporting fingers to facilitate threading of the yarn. The Provisional Specification describes an arrangement in which drag is applied by curved nipping surfaces on spring-loaded fingers of the traverse member.
Patent GB-346316-A (GB)
Title: Improvements in and relating to frequency changers
IPC: H02K47/28
Filed: 1929-10-03
Abstract: 346,316. Supply systems depending on two or more machines ; rotary transformers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hull, J. I; 1338, Deane Street, Schenectady, New York, U.S.A.) Oct. 3, 1929, No. 30020. Convention date, Oct. 3, 1928. Void [Published under Sect. 91 of the Acts]. [Classes 35 and 38 (iv).] A frequency changer or phase advancer supplying a load which may be highly inductive or a capacity load is provided with a primary winding 11 and a commutated winding 15 both on the same rotor and forming independent circuits. The stator windings 16 and 17 are provided with throw-over switches 18 and 19 and are connected to the brushes 20 .. 23. The load may be multi-phase but in the Figure a two-phase load 24, 26 and 25, 27 which is highly inductive is shown connected to the brushes 20 .. 23. The primary winding 11 is connected to the supply circuit 10 through slip-rings 14. The machine is started and runs as an induction motor at a speed above or below synchronous speed according to the type of load by using the throw-over switches 18 and 19 to provide the correct relation between the stator winding and armature winding 15. When run above synchronous speed, as with an inductive load, phase rotation of the current in the load circuit, which is at slip frequency, is the same as the direction of mechanical rotation and the wattless component of the load circuit is utilized to assist or wholly provide the magnetizing current. By manipulation of the brush position current may be circulated in the stator windings 16 and 17 and the machine caused to furnish a leading current to the supply system or similarly to take a lagging current from the system if the load has a leading power factor. When the machine is running above synchronous speed a voltage of transformation opposes the voltage of rotation in the commutated coils of winding 15 and improves commutation so that the air-gap need not be increased to the extent normally required to facilitate commutation; neither need interpoles where used be of normal strength.
Patent GB-1327857-A (GB)
Title: Awning
IPC: E04F10/04
Filed: 1971-06-28
Abstract: 1327857 Awnings A COLLET & FILS SA 28 June 1971 [9 July 1970] 30099/71 Heading E1J An awning comprises a frame of U-shaped members pivoted together at their ends, the webs 5 of the members being telescopically adjustable, side cloths 7, 7a covering the limbs 4, 4a and the adjacent part 6 of the web of the members, and a central cloth 8 on a roller and connected to the outermost member. The   limbs are bent over to form parts 6 slidably adjustable in cross-member 5. Clamping screws (11) extend through slots (10) in member 5 and into parts 6. Screws (11) also secure sleeves (12) of cloths 7, 7a. Spare material of cloths 7, 7a may be folded under central cloth 8.
Patent GB-820068-A (GB)
Title: Improvements in and relating to metal films on non-metallic surfaces
IPC: H01J9/08
Filed: 1955-10-21
Abstract: 820,068. Electric cathode heaters. GENERAL ELECTRIC CO. Oct. 21, 1955 [Oct. 22, 1954], No. 30122/55. Class 39(3) [Also in Groups II and XXXVI] A metal film is produced on a ceramic by applying and heating a carbon-containing compound such as nitro-cellulose which decomposes on heating to form a carbonaceous residue, and at least one of the metals Ti, Zr, Hf, Th, Ta,, or its hydride, or both, together with (if desired) one or more of Ni, Fe, Co, Pt, Cr, Cu, Mo; the duration and temperature of the heating being controlled to obtain a film of predetermined ohmic resistance and thermal characteristic. The ceramics may be aluminas, beryllias, steatites, forsterites; the resistor product is applicable especially to printed circuits and to heating elements of cathodes. Fig. 1 shows a resistor heating element suited to operation under vacuum. An alumina tube 10 is coated along its bore 11 with Ti hydride in a nitro-cellulose binder; Ta connecting wires 12, 13 coated with Ti hydride are inserted at the ends, and the assembly is heated in a vacuum chamber to 1200‹C-1400‹C. so that the hydride decomposes and reacts with the alumina to form a film of desired ohmic characteristic. This resistor may be placed in a radio tube cathode; or can be similarly (or otherwise) given an outer coating 16 of metal on which may be an emissive layer to form an integral heater-cathode, a connecting tab 17 being added in contact with layer 16. In Fig. 2 the bore 21 of ceramic tube 20 is coated with a mixture of 30% Fe, 70% Ti hydride in nitro cellulose binder, closed with Ni shims 22 and Ti end caps 18. The asembly is first heated in vacuo to about 1000‹C. to bond the cap-shim members to the tube, then raised to 1100‹C. to react the Fe and Ti with the ceramic bore until the desired ohmic characteristics are obtained. A resistor obtained using 30% Ni powder with 70% Ti hydride in nitro cellulose is also mentioned. Fig. 3 shows part of an electric discharge device with a cathode assembly including a heater of the invention, wherein the Ti cathode connector 23 has been joined with the aid of a Ni shim 26 and nitro cellulose heated to 955‹ C. in vacuo to a ceramic insulator 24 which retains the Ti or Ni cathode cup 25 which has also been connected at 28 using nitro cellulose. The ceramic button 29 secured to the cathode 25 has a heating resistance layer 31 on its lower face formed by the method of the invention using Ti hydride and nitro cellulose and heating to 955 ‹C. in vacuo. This layer also serves to connect button 29 to the heater lead 30 of Ni or Fe. Fig. 4 shows another form of cathode, with shield 33, resistance heater 34 on ceramic button 35 with leads 36. Fig. 5 (not shown) illustrates different patterns for the heater 34. Specifications 625,371 and 636 841 [both in Group II] are referred to.
Patent GB-698784-A (GB)
Title: Treatment of artificial yarn
IPC: D01D10/04
Filed: 1951-12-27
Abstract: 698,784. Bobbins. CELANESE CORPORATION OF AMERICA. Dec. 27. 1951 [Dec. 28, 1950], No. 30223/51. Class 120.(iii) [Also in Group XVII] Yarn cakes are enclosed within a plurality of permeable coverings and subjected to wet-processing and drying treatments. A mandrel or core 6, Fig. 2, is positioned within a fabric sock or sleeve 7 surrounded by a paper sleeve 8, the ends of the sleeves are tucked into the open ends of the mandrel and secured by bands 9 as shown in Fig. 3, and the mandrel placed in a winding device. After a yarn cake 11 has been wound on to the mandrel. the end portions of the sleeves are folded in succession over the cake, as shown in Fig. 5, and the wrapped cake removed from the mandrel and subjected to the usual wet-processing and drying treatments. The sleeve 7 is then removed for re-use, leaving the wrapper 8 in position to protect the cake during subsequent handling, storage and transport.
Patent GB-293622-A (GB)
Title: Improvements in valves or cocks
IPC: F16K21/14
Filed: 1927-11-11
Abstract: 293,622. Brewster, J. H. Nov. 11, 1927. [Convention date]. No Patent granted (Sealing fee not paid). Lift valves; locking- catches; strainers. - A push lift valve suitable for petrol &c. drums, casks, &c. comprises a one-piece body 1, a valve 7 with stem 6, and a closing spring 9 beneath the operating push knob 8. A pivoted catch 11 can be moved up to hold the valve open when desired, as shown. A gauze or like screen or filter 13 may be secured to the screwed inlet boss 2 by a screwed ring 14. Reference has been directed by the Comptroller to Specifications 5446/85, 9948/90, 21655/93, 11585/94, 564/96, and 7451/08.
Patent GB-855980-A (GB)
Title: Device for preventing ingestion of debris by gas turbine engines
IPC: B64D33/02
Filed: 1958-09-23
Abstract: 855,980. Aircraft. DOUGLAS AIRCRAFT CO. Inc. Sept. 23, 1958 [Sept. 26, 1957], No. 30324/58. Class 4. In order to prevent the entry of debris into the air intake of jet propulsion plant on aircraft during ground running, a jet of pressure air is directed at the ground below the air intake to prevent the formation of vortices between the ground and the air intake. Each wing 10 carries an engine pod 12 and a gas discharge outlet 25 is located in the pod cowling and connected by a duct 29 with a solenoid operated valve 28 which is in communication with a late stage of the compressor of a gas turbine engine. The solenoid of valve 28 may be energised by a manually operated switch 34 and/or a switch 37 which is closed by contraction of the nosewheel undercarriage 40 and by switches 45 associated with throttle control levers 47. The air to outlet 25 may be supplied by a separate engine driven compressor. In operation air from outlet 25 strikes the ground 15 below air intake 13 and fans out over the surface of the ground, thereby preventing the formation of vortices between the ground and inlet 13 of strength capable of raising destructive debris to the level of the air intake.
Patent GB-391797-A (GB)
Title: Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices
IPC: H03K17/78
Filed: 1931-11-03
Abstract: 391,797. Controlling apparatus by light. POOK, H. W., 112, Beckenham Lane, Shortlands, Kent, and RADIO V I S 0 R PARENT, Ltd., 28, Little Russell Street, London. Nov. 3, 1931, No. 30441. [Class 40 (v).] In a delay-action circuit, a light-sensitive cell 1 and a resistance 2 in series are connected to a relay 9, Fig. 1, through a condenser 7, and an additional resistance 11 is brought into circuit by the relay to vary the effective resistance of the cell or the resistance 2. The relay is in the anode circuit of a thermionic valve 6 with its grid connected through the condenser to the junction 5 of the cell and the resistance 2. The resistance 11 is in series or shunt, Fig. 2 (not shown), with the resistance 2. The resistance 2 may be in two sections and the circuit operated by short-circuiting one of them, Fig. 3 (not shown). As shown in Fig. 4, the relay 20 is connected directly through the condenser to the junction 5.
Patent GB-1012024-A (GB)
Title: Improvements in tube bending machines
Inventor: HART GEORGE ERNEST
IPC: B21D7/06
Filed: 1961-08-23
Abstract: 1,012,024. Bending. CHAMBERLAIN INDUSTRIES Ltd. Aug. 2, 1962 [Aug. 23, 1961], No. 30459/61. Heading B3E. [Also in Division F1 A hand lever operated tube or rod bending machine includes a housing 7 which acts as a reservoir for a horizontal jack cylinder 24 containing a piston 28 and to which cylinder oil from the reservoir is forced by the displacement of a reciprocatable plunger 42 actuated by the hand lever 8, the lift or retraction of the plunger drawing oil from the reservoir via a non-return valve 47 into the bore 45 in which the plunger 42 moves and the reverse movement of the plunger displacing the oil from the said bore 45 via another non-return valve 50 into the cylinder 24, means being provided to release the oil from the cylinder 24 after a work-performing operation and comprising a spring-loaded release valve 33 which, under the influence of its spring, closes a discharge passage 34, from the cylinder 24, during a working operation, said release valve 33 being actuated by a push-rod 35 to open position, means 36 to actuate said pushrod by the displacement of the hand lever 8 beyond the normal full working stroke of the hand lever, and stop means 44 to prevent the movement of the hand lever 8 beyond the full working stroke and adjustable to permit further displacement of the hand lever beyond its working stroke movement to actuate the release valve 33 to the open position. The working stroke of the lever 8 is determined by engagement of the lever 8 with a rectangular sectioned stop 44 which is adjusted about its axis to allow the lever 8 to move beyond its working stroke to actuate the push-rod 35. The piston 28 of the jack may operate upon a head 9 carrying a roller 10 bearing against a back forming bar 11 pressing on a tube 12 to be bent on a former 1 journalled at 2 as described in Specification 913,784, to which reference is made. Alternatively, the jack may urge a former between a pair of laterally spaced abutments, the work being located between the former and the abutments.
Patent GB-505204-A (GB)
Title: Improved means for attaching fishing-net floats and similar bodies to ropes and like flexible connections
IPC: A01K75/04
Filed: 1937-11-06
Abstract: 505,204. Cleats. BROWN, D. Nov. 6, 1937, No. 30510. [Class 109] [Also in Group VI] Fishing-net floats and like bodies, attached to ropes by a coiled-handle member, have a handle provided with spaced legs a turned to form coils d which engage the rope f on one side, the coils having an intermediate hook member e engaging the rope on the opposite side so that the rope, when pulled taut, is slightly kinked by the coils d and hook e. The legs a are welded at b to the float c and are spaced apart about four times the diameter of the coils.
Patent GB-668439-A (GB)
Title: Improvements in or relating to apparatus for mixing granular or powdered materials
IPC: A01C1/08
Filed: 1949-11-29
Abstract: 668,439. Mixing appliances. SIREN, A. O. Nov. 29, 1949, No. 30576/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 30, 1950.] Class 86 Apparatus for mixing two granular or powdered materials such as grain and a germicide powder comprises an oscillating twin chambered weigher mounted to be overbalanced by the accumulation of a first material delivered from a hopper into the chambers alternately, means operated in synchronism with the oscillation of 'the weigher for permitting a predetermined quantity of a second material to pass from a container mounted' above the weigher into the chambers alternately t o - gether with the first material, and means below the weigher for further admixing thematerials discharged from the weigher. Delivery of germicide powder from a container 3, Fig. 1, is controlled by a shutter- 25 and a bar 20 which are rocked in synchronism with the oscillation of the weigher A by means of a linkage mechanism connected with the weigher shaft 5, the powder being discharged alternatively from either side of a slot 19 to fall into the chamber A1 or A2 on the corresponding side of the weigher together with grain which flows from a hopper 2. The amount of powder discharged from the container 3 is predetermined by the setting of a slidable gate 37 over the slot 19. The operation of the weigher is predetermined by a balance weight 30, Fig. 3, slidably adjustable along a bar 28 upwardly extending from the shaft 5. Materials discharged from the weigher are further admixed by means of perforated hollow baffling cones 33 alternating with hollow inverted truncated cones 35 coaxially supported within a casing 34.
Patent GB-651114-A (GB)
Title: Improvements relating to rotary spherical valves
IPC: F16K5/06
Filed: 1948-11-25
Abstract: 651,114. Joint-making packing. BOVING & CO., Ltd., DARLING, W., and KENNELLY, W. Nov. 25, 1948, No. 30596. [Class 122,(iii)] [Also in Group XXIX] Distortable sealing rings f, Fig. 1, in a rotary spherical valve c disposed in a hydraulic line b<SP>1</SP>, b<SP>2</SP> each comprise a rubber cores g, Figs. 3, 5, within a rubber sheath having flanges f with a metal spacer j therebetween. When the pressures on opposite sides of a ring are equal a small clearance is left between the rotor and its casing to enable the rotor to be easily rotated. On removal of the pressure on the downstream side of a ring by manipulation of the valves l, m, n, the appropriate ring is distorted to form a seal. The ring may be secured to the rotor as in, Fig: 3, or the casing as in Fig. 5. The rings may have a rubber core encased in a metal sheath or may be made from bronze having circumferentially split flanges, or the rubber core g may be formed integral with the flanges f<SP>1</SP>.
Patent GB-947818-A (GB)
Title: Improvements relating to containers for handrails
Inventor: RUMSBY ARNOLD
IPC: B65D85/00
Filed: 1961-08-24
Abstract: 947,818. Handbill containers. MEAD, McLEAN & CO. Ltd. Aug. 21, 1962 [Aug. 24, 1961], No. 30599/61. Heading B8P. [Also in Division A4] A handbill container, the upper portion of which is open at the front, has a front wall 2 and rear wall 1, convexly shaped with a ridge 3. The space 4 may be closed at the bottom either by a wall or by cross-pieces 5. The rear wall 1 is provided with edge portions 7 having mounting holes 8. The front wall 2 may be transparent and the container may be moulded in one piece.
Patent GB-320250-A (GB)
Title: Improvements in and connected with level or plumbing devices for use by builders and for like purposes
IPC: G01C9/12
Filed: 1928-10-23
Abstract: 320,250. Blaber, P. O., Wright, R. L., and Hawkins, E. A. Oct. 23, 1928. No Patent granted (Sealing fee not paid). Plumb-rules.-In a level or plumb-rule of the kind comprising a pendulum 3 pivoted within a straight-edge &c. 1 and provided with a pointer 8 co-operating with a scale 9, the scale is marked on a plate 10 mounted in a recess 2 in the straight-edge and the pin 7 by which the pendulum is pivoted bears in bosses 5, 6, the boss 6 being formed on the plate 10 and the boss 5 being formed on a plate 13 connected to the plate 10 by screws 12 surrounded by distance pieces 14 interposed between the members 10, 13. The compartment 2 is covered by a detachable plate 15 having a window 17 through which the pointer and scale can be seen.
Patent GB-844186-A (GB)
Title: Improvements in or relating to knitting apparatus
IPC: D04B39/00
Filed: 1957-10-01
Abstract: 844,186. Knitting-machines. TURFA A.G. Oct. 1, 1957 [Oct. 6, 1956], No. 30706/57. Class 74 (2). The front edge of the needle trick walls of a flat-bed machine are extended to form downwardly-facing hooks 10b which serve as a castoff comb for the fabric as it is produced on the latch needles of the machine. Withdrawal of the needles during the stitch-forming operation causes the yarn to be drawn downwardly around the curved faces 10 of the hooks until it passes into the hooks 10b. After the previous course loops have been cast off the needles are advanced and the yarn is held in the hooks. The hooks 10b may be resiliently arranged so that when the yarn slides over the hook it will yield slightly and spring back in position when the yarn enters the hook.
Patent GB-936908-A (GB)
Title: Improvements in or relating to portable tables
Inventor: BARCELO PASCUAL
IPC: B60B33/00
Filed: 1962-08-10
Abstract: 936,908. Stands; buffers and resilient supports for furniture. UNIFRUIT (LONDON) Ltd. Aug. 10, 1962, No. 30721/62. Addition to 817,889. Classes 52 (1) and 52 (3). A typewriter or like stand according to the parent Specification includes an H-shaped lower frame 1, the cross-bar 2 of which forms a foot rest, and has its upper frame 13 offset with respect to the lower frame 1 and the vertical bars 11, 11<SP>1</SP>. Between the extensions 5 of the H-frame side bars 3 and the castors 7 are fitted elastomeric shook absorber pads 8 which extend beyond the rims of the extensions 5 to act as buffers. Distributed holes 18, 18<SP>1</SP> facilitate fixing of office machines to the table. Guides 19, 20 facilitate attachment of lamps, filing-boxes and working flaps.
Patent GB-905718-A (GB)
Title: Improved resin emulsions
Inventor: TOMLINSON ROY CHARLES BLEAY
IPC: C08J3/03
Filed: 1959-09-09
Abstract: In a process for producing an emulsion of a resin derived from a steam-cracked naphtha, an aqueous solution of a metal base, an aminoalkyl substituted alcohol or an alkoxylated alkyl phenol is intimately mixed with a molten resin containing an organic acid or a fatty amide, whereby an emulsifying agent is formed in the mixture to produce a resin-in-water emulsion.  The process may be effected continuously.  Emulsifiers mentioned are alkali or alkaline-earth metal salts of organic acids particularly soya fatty acid, tall-oil acid, abietic acids, mahogany sulphonates, and synthetic sulphonates, and amino-methyl propanol.  Homogeneous emulsification may be achieved by either injection of the constituents as separate streams into a mixing chamber or heating the resin streams to form a molten stream.  Additionally the resinous emulsion may contain a plasticizing oil, e.g. the "fill" obtained from steam-cracked petroleum oil polymerization reactions, in which the reacted mixture is distilled to obtain that portion boiling within the range 150 DEG - 300 DEG C. at reduced pressure, or an oxidation-inhibitor, e.g. octyl-p-cresol. Emulsion particle size may be controlled by subjecting the emulsion to conditions of shear, i.e. passage of a layer of emulsion at high speed between two adjacent surfaces. Examples are given.