baber/WOPTO huggingface dataset:
Patent GB-555379-A (GB)
Title: Pressure release valve for manually or foot-operated pneumatic pumps
IPC: F04B39/10
Filed: 1942-05-29
Abstract: 555,379. Air pumps. TURNER, W. May 29, 1942. [Class 8 (i)] {Also in Group XXIX] A manually or foot-operated pneumatic pump is provided with pressure release means at the final or high pressure end comprising a manually actuated valve. In the form shown in the Figure the valve comprises a spindle 1 having at one end a truncated conical part 2 adapted to engage a similarly shaped seat 3 and having an enlarged screw threaded part 7 engaging a thread in the casing. The spindle is provided with a manipulating knob 6 and is formed with a longitudinal escape channel 9 along the spindle and through the screw threads. A bushing 10 may be screwed into the casing to guide the spindle and prevent the complete withdrawal of the valve.
Patent GB-1095003-A (GB)
Title: A method of and apparatus for applying a layer of a filter aid to the filter of a filter press
Inventor: BUSSE OSWALD
IPC: B01D25/12
Filed: 1965-02-19
Abstract: 1,095,003. Filtering. U. PASSAVANT and P. SCHRAMM, [trading as PASSAVANTWERKE], Feb. 19, 1965 [Feb. 19, 1964], No. 7336/65. Heading B1D. Prior to using a filter press 1 for dewatering a mixture of sewage sludge and ash, a layer of filter aid is applied to the press by entraining the filter aid in a stream of suspending liquid. The filter aid may be ash, and the liquid may be filtrate from the press 1. In the apparatus shown, ash is metered from hopper 14 into mixing vessel 4 while air is passed through the vessel from inlet 11 to outlet 13 to blow the finer ash away. Liquid is subsequently introduced into the vessel 4 from a source 10, which may be a high reservoir, a container with compressed air supply or a pump. The liquid enters tangentially at two levels, producing turbulence, and carries the ash into press 1 through pipe 3. The liquid used is at least twice the volume of the press, and 0.2 to 0.8 Kg./m<SP>2</SP> of ash are deposited on the press filtering surfaces. In an alternative embodiment, the filter aid is fed by a screw directly into a pipe carrying the suspending liquid.
Patent GB-668906-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J21/06
Filed: 1950-03-24
Abstract: 668,906. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 24, 1950 [March 29, 1949], No. 7426/50. Class 39 (i). A device for amplifying or modulating frequencies of 1000 Mc/s. or higher comprises an electric discharge tube, the cathode of which is provided at the interior with a supply of alkaline earth metal compounds and which has at least part of its wall consisting of a homogeneously porous sintered body of one or more of the metals tungsten, molybdenum, tantalum, hafnium or niobium, and the pores of the porous body being the largest apertures in the wall, characterized in that the tube is adjusted so that in the absence of signal voltage at least 10 per cent of the saturation current passes the potential minimum between the cathode and control electrode, the spacing between the cathode and control electrode being less than 30 Á. This method of operation reduces the noise and the grid damping. The spacing between cathode and grid may be 17 Á and the static current is preferably at least 20 per cent and may be 30 per cent or even 50 per cent of the saturation current. Specification 641,581 is referred to.
Patent GB-453476-A (GB)
Title: An improved process in manufacturing of malleable insulator heads and the like with a hollow top dome for high tension electric mains
IPC: B21C23/03
Filed: 1936-03-12
Abstract: 453,476. Making domed insulator heads. NECK, C. G., Nossebro, Sweden. March 12, 1936, No. 7542. Convention date, May 10, 1935. [Classes 83 (ii) and 83 (iv)] Forging and cupping dies.-An insulator head 10, or like is formed by pressing a thick plate between top and bottom dies 3 and 1 which converge towards the lower edge to grip the plate so that they force the metal to flow back into the top cavity forming a dome 11 without internal die pressure on the cup. A removable plug 12 shapes the top of the dome. The metal plate is about 2¢ times the thickness of the finished cup. The plate is centred on the dies by a pyramidal projection on the lower die filling into a depression in the plate.
Patent GB-435186-A (GB)
Title: Improvements in and relating to dough dividers
IPC: A21C5/02
Filed: 1934-03-09
Abstract: 435,186. Dividing dough. HARBER, L. S., POINTON, J. E., and BAKER PERKINS, Ltd., Westwood Works, Peterborough. March 9, 1934, No. 7490. [Class 87 (ii)] In a dough divider having a hopper 2, a ram chamber 3 and one or more measuring chambers 9, the walls of the hopper are provided or formed with inwardly projecting flanges or rims 4 adjacent the ram chamber, extending around the whole of the internal perimeter of the hopper, and providing a substantially horizontal surface adapted in conjunction with the dough to form an air seal between the hopper and chamber 3. The flanges may be curved upwardly at their inner edges or provided with an upwardly extending lip or bead. The hopper may be of square shape in plan. A cut-off knife 7 and ram 8 are provided and the ram may have a bevelled front face. The chamber 3 may have the same shape in plan as the hopper and its cubical capacity is preferably reduced to a minimum at each ram stroke.
Patent GB-1513821-A (GB)
Title: Picture hook
IPC: A47G1/16
Filed: 1976-02-24
Abstract: 1513821 Hooks M SPIER R H ARBIB and T VAN GESSELL [trading as LEVELLINE PRODUCTS] 24 Feb 1976 [24 Feb 1975] 7614/75 Heading E2A A picture-hanging hook has a multiplicity of hanging positions 17 for the picture support wire 18, and has a dovetail engagement permitting horizontal sliding adjustment, with a supporting bar 14 which is nailed to the wall.
Patent GB-996569-A (GB)
Title: Separation of 4:4-bipyridyl from mixtures containing it
Inventor: FANSHAWE RALPH SANTORRE
IPC: C07D213/22
Filed: 1962-02-27
Abstract: 4,41-Bipyridyl is separated from a mixture of isomeric bipyridyls containing it by treating said mixture with water and thereafter separating the 4,41-bipyridyl hydrate at a temperature below about 60 DEG  C.  The mixture of isomeric bipyridyls may be produced from metal-pyridine interaction products, for example by oxidation.  The separated hydrate may be subsequently converted to 4,41-bipyridyl, for example, by heating to above 60 DEG  C. or by heating under reduced pressure.  The 4,41-bipyridyl may be subsequently quaternized with, for example, methyl sulphate or methyl chloride.  Examples are given.
Patent GB-984180-A (GB)
Title: Improvements in, or relating to, fluid flow control valves
Inventor: TAYLOR RONALD WILLIAM WHINNERA
IPC: F16K11/04
Filed: 1960-03-04
Abstract: 984,180. Valves. LANG PNEUMATIC Ltd. March 6, 1961 [March 4, 1960], No. 7654/60. Heading F2L. A valve adapted to control communication between an inlet port 2 and a transfer port 3 and between this transfer port and an exhaust port, has a bore extending through the valve body 1 which comprises two contiguous portions 4, 5 (Fig. 1) or 27, 28 (Fig. 3) of different uniform diameters, the larger bore portion being closed by an axially bored plug 6 or 6a which provides the said exhaust port and the smaller bore portion being closed by an actuating plunger 12 or 12a, 29, the inlet and transfer ports being in open communication each with one of the bore portions, a valve member 13 or 13b in the larger bore portions being spring- urged on to a seat 22 or 22a to isolate the inlet and transfer ports whilst allowing communication between the transfer and exhaust ports. In the embodiment of Fig. 1 the valve member 13 is carried by the plunger and has an additional closure seating on the plug 6. In the embodiment of Fig. 3 the plunger 12a, 29 is separate from the valve member 13b and on depression against a spring 31 closes a seat opening 36 in this valve member which communicates with the exhaust port in the plug.
Patent GB-384867-A (GB)
Title: Improvements in multi-way cocks for conduits supplying pulverised coal or other similar products
IPC: F16K5/08
Filed: 1932-03-15
Abstract: 384,867. Delivery devices for grinding, crushing, &c. mills. POLLAK, J. E., 20, Holborn, London.-(Compagnie Frangaise Howden Buell Combustion ; 63, Avenue des Champs Elysees, Paris.) March 15, 1932, No. 7662. [Class 59.] The supply of pulverized coal from a pulverizer 17 to burners or sets of burners is controlled by a series of cylindrical multi-way plug cocks 1. Each plug 9 has a through passage 9b which may put an inlet conduit 3 from the pulverizer 17 in communication with a conduit 4 leading to the burner or set of burners or with a return conduit 5 by which the corresponding part of the pulverizer is short-circuited. Hinged flaps 6 fitting in recesses 7 are provided to throttle the inlet conduit 3. The return conduit has a single flap 8. The plug and the flaps have external operating handles. When the passages 3, 4 or 3, 5 are in full communication, the bearing parts of the cock casing are protected from the abrasive action of the pulverized coal by the plug 9. The latter is completed by an outwardly-pressed segment 14 the sharp edges of which scrape accumulated dust from the bearing parts of the casing.
Patent GB-557863-A (GB)
Title: Improvements in or relating to arrangements for producing electric impulses
IPC: H02M7/62
Filed: 1942-06-05
Abstract: 557,863. Electromagnetic interrupters. STANDARD TELEPHONES & CABLES Ltd., and BRAY F. H. June 5, 1942, No. 7676. [Class 38 (v)] An electromagnetic relay for periodically opening and closing a circuit and the operation and release of which is controlled by the periodic charging and discharging of a condenser over a winding thereof is supplied with substantially constant operating potential across a cold cathode discharge tube. In the circuit shown operation of key SK applies potential to the three electrode discharge tube CCT and the voltage-across the tube is applied to the circuit of relay P, the short-circuit on condenser C1 having been removed and winding I connected up by SK. Current over winding I is opposed by charging current over II and when the latter has sufficiently decayed P pulls up followed by PP which closes a required circuit and opens the supply circuit of P. Condenser Cl now discharges over both windings tending to hold the relay which eventually restores to release PP. Contacts of P and PP momentarily short-circuit the condenser; and the relay continues to operate and release. Resistances R3 varies the period of the relay. Specification 557,852 describing a modified arrangement using a polarized relay without a discharge tube is referred to.
Patent GB-526183-A (GB)
Title: Improvements in and relating to electric alternating current motors
IPC: H02K27/16
Filed: 1939-03-09
Abstract: 526,183. Control of two A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd., and ADKINS, B. March 9, 1939, No. 7693. [Class 38 (iii)] A load is driven by two mechanically coupled alternating- current commutator motors 1, 2, and in order that the motors shall take an equal share of the load, a source of regulating voltage, e.g., a transformer, or induction regulator 6, 7 is connected in series between the commutators of the two machines.
Patent GB-1087851-A (GB)
Title: Improvements relating to castors
Inventor: KAY ROBERT BRIAN
IPC: B60B33/00
Filed: 1964-02-25
Abstract: 1,087,851. Castors. GEO. H. HUGHES Ltd. Feb. 24, 1965 [Feb. 25, 1964], No. 7698/64. Heading A4U. A castor comprises a shaft 12 supported coaxially within a tubular mounting bracket 22 by a pair of bosses 15, 21, a wheel fork 5 swivellably mounted on one end of the shaft 12, and a pin 20 engaged through a slot (23) in the bracket 22 and a bore in portion 19 of one boss 15 to prevent relative rotation of the shaft 12 and bracket 22.
Patent GB-375289-A (GB)
Title: Improvements in or relating to means for delivering water of condensation from steampipes to steam boilers
IPC: F22D11/06
Filed: 1931-03-13
Abstract: 375,289. Steam generators. BLUNDON, J. C., 715, Rand Avenue, Oakland ; California, U.S.A. March 13, 1931, No. 7772. [Class 123 (ii).] A device for removing condensed water from steam pipes and returning it to the boiler consists of an injector 27 for removing the water from the steam pipes, a vessel 6 for receiving the water, a pump 8 for circulating the water and valve means 19, 22 actuated by the pressure of the circulating water from the pump and controlled by a float 29 in the vessel acting to return the water to the boiler feed on a predetermined height of water in the vessel 6 being reached, the valve means acting to direct the water coming from the pump 8 to the boiler and simultaneously to cut off the water from the injector 27, and vice versa. In operation, a rotary pump 8 having propellers 11 driven by a motor 13 feeds water from a tank 6 to an ejector 27 through pipes 16, 21, a valve 22 and a pipe 23, the ejector drawing condensed water from the steam pipes through a pipe 28 to the tank 6. When the water reaches a predetermined level 58, a float 29 operates, through a rod 31 and handle 33, the plug 41, Fig. 2, of a rotary valve 19, admitting water through pipe 18 and passage 47 to one head 37 of a cylinder 36 and actuating a piston 34 therein, the water being displaced from the other head 38 and passing off through a passage 48 and a pipe 49. The piston, by means of a rod 51 and arm 52, operates rotary valve 22, shutting off pipe 21 from the ejector pipe 23 to stop the supply of condensed water to the tank 6 and opening it to the boiler water feed conduit 24 to which water is then supplied by the pump 8. When the water in tank 6 has fallen to the lower level 7 the float 29 causes the rotary valve 22 to be restored to its previous position, thus causing displacement of piston 34 and operation of valve 22 to connect the ejector pipe 23 to pipe 21. Operation of the ejector 27 is thereupon resumed and condensed water is again drawn into the tank 6, and so on as before. Means provided to cut off the pipe 28 and prevent entry of steam, when all the water has been withdrawn from the steam pipes, includes a seating 53 in pipe 28 with which coacts a valve 64 connected by a rod 66 to a piston 68 operating in a cylinder 67 connected through pipes 71, 49, 28 to the ejector 27. An air vent 70 is provided in the cylinder 67. While water is being drawn in through pipe 28 suction in pipe 71 keeps the piston 68 in the raised position and the valve 64 open. When steam comes through pipe 28 it expands into pipes 49, 71, breaking the vacuum, and the piston falls, shutting the valve.
Patent GB-841771-A (GB)
Title: Improvements in or relating to drums
Inventor: MCKOEN JOHN EDWIN
IPC: G10D13/02
Filed: 1957-03-08
Abstract: 841,771. Snare drums. DALLAS & SONS Ltd., J. E. June 9, 1958 [March 8, 1957], No. 7795/57. Class 88 (2). Snares are mounted at each side of a drum on rocking arms forming a parallel linkage, one arm being spring-biased and the other being manually-displaced to move the snare against the drum in opposition to the spring or to allow the spring to swing the snare away from the drum. Snares 21 are mounted on members pivoted to arms 17 and 18 which are themselves pivoted in brackets 14 and 15 at opposite sides of the drum 10. The arm 17 is biased by a coilspring 16 while the arm 18 is moved between two positions by a link 25 driven from a wheel 27 connected to a handle 29. A portion 32 of the periphery of wheel 27 is cut away and with pin 21 defines a released position, as shown in Fig. 4, and an engaged position when the link 25 is drawn into an over-dead-centre relationship with the wheel. The tension of the snares is adjustable by means of a finger nut 23.
Patent GB-126464-A (GB)
Title: Improvements in and connected with MOtor Cycle Saddles.
Inventor: BETTNEY THOMAS
IPC: B62J1/02
Filed: 1918-05-10
Abstract: 126,464. Bettney, T. May 10, 1918. Saddles.-A motor-cycle saddle one-pillar or two-pillar hanger, so shaped as to be adapted for use with only one tension spring, is made separately therefrom and as a separate unit from a piece of wire which is bent to form either one or two pillars and an upper base part having two or more loops for fixing the hanger to the underside of the saddle pan, the lower part being formed with a loop, arm, or part for the connexion of the spring. As shown in Fig. 1, the hanger has a single pillar 1, two upper loops 6, 7, and a bottom screw-threaded arm 2. In Fig. 9, the wire forming a two-pillar hanger 13, 14 is shown bent to provide four upper loops 15, 16, 26, 27, and a lower loop 20, 21. Specification 27050/11 is referred to.
Patent GB-198335-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of tire casings
IPC: B29D30/24
Filed: 1923-03-19
Abstract: 198,335. Hartford Rubber Works Co., (Assignees of Steinle, W. J.). May 26, 1922, [Convention date]. Tyre coders, making.-In apparatus for making tyre covers by shaping from a flat band, the band is built up on a collapsable drum and then shaped by relatively-movable presser-rings whilst supported by the collapsed drum. The drum is formed in segments 8 arranged in pairs at the sides of a disc 11 which is carried by a sleeve 6 mounted on a hollow shaft 2. The pairs of segments are connected by bolts 9 with distance collars 10, the disc 11 being slotted to allow radial adjustment of the segments. When expanded, the segments are flush with a central ring 21, and the cover is built up in the flat form indicated in the lower part of Fig. 5. The normal diameter of the bead cores is such that on collapse of the drum the cover assumes the arched section shown at 36 in the upper part of Fig. 5, being supported on the ring 21 and alternate pairs of the drum segments. The edges of the cover are then forced towards each other by means of fixed and movable pressure rings 27, 28 respectively. The ring 27 is detachably mounted on the supporting segments 8, the ring 28 being carried by brackets 29 on a spider 30 which is connected to one end of a piston 32 in the hollow shaft 2. A manually-operated valve is provided for controlling the pressure-fluid actuation of the piston 32 in its operative stroke, its reversal being effected by hand. The drum is formed of alternately large and small segments 8, as shown in Fig. 2, connected by links 13 to a disc 15 on the shaft 2. Radial adjustment of the segments is effected by means of a handle 19 fitted with a pinion 18 which meshes with a rack 16 on the disc 15. The pivotal connections of the links 13 are so arranged that, in the collapsing movement of the drum, the larger segments are first expanded slightly followed by ar. all-round inward movement which is greater in the case of the smaller segments. Lugs 22 on the ring 21 engage recesses in the smaller segments 8 when the drum is expanded but are freed, on its collapse, to permit the lateral movement of the ring under the pressure of the ring 28. By detaching the ring 27, the shaped cover, adhering to the ring 21, may be removed for vulcanizing.
Patent GB-742122-A (GB)
Title: Apparatus for fixing associated plaster models of upper and lower jaws
IPC: A61C11/08
Filed: 1953-03-23
Abstract: 742,122. Dental articulators. FISCHER, R. March 23, 1953 [March 21, 1952], No. 7982/53. Class 81(2). An apparatus for fixing associated plaster models of the upper and lower jaws is characterised in that an articulator and a minor form thereof called an occludor are so formed that holding devices in stationary bottom pieces of both the articulator and the occludor assume the same position with respect to the opening axes of pivotable upper pieces of both articulator forms, so that the same plaster models may be secured in the occludor and articulator and can be interchanged between the two instruments. The occludor, Fig. 2, is merely capable of executing opening-closing movements about the axis 1 and both instruments, Figs. 1 and 2, are formed such that they may hold in stationary bottom pieces 29, 7 and pivotable upper pieces 25, 4, ring members 2 of identical dimensions. The ring members 2, which are secured within pieces 29, 7, 25, 4 by screw members 5 hold the plaster models by means of rods 3 which pass through ring and model. In cases where the teeth are manufactured in a dental laboratory at some distance from the dental practitioner the latter after correctly adjusting the models in his articulator sends them with the necessary guide data to the laboratory which then fastens in its own occludor the models with respect to the opening axis and produces the dental prosthesis in wax. This prosthesis with the occludor is then returned to the dentist who possibly rectifies the height of the bite and tooth position. On return of prosthesis and occludor the laboratory completes the prosthesis and, because the ring members 2 are interchangeable between occludor and articulator, can grind it in correctly in its own articulator. The models complete with ring members 2 are then returned to the dentist who checks once more in his articulator this time as to whether the prosthesis has been correctly ground-in according to his data.
Patent GB-547586-A (GB)
Title: Device for locating two or more workpieces relatively to one another
IPC: B25B31/00
Filed: 1941-06-26
Abstract: 547,586. Clamps. PRESSED STEEL CO., Ltd., and TRIBE, T. F. June 26, 1941, No. 8021. [Class 44] Plates are located and held in position during riveting, spot welding &c. by a spring 13 the end 17 of which is bent to pass axially through the coils and from a straight finger 18. notched at 24 to form a shoulder 25, and the end 15 being bent and shaped into a wedge shaped finger 16; the two fingers having abutting flats 2, 3. The bottom coil of the spring is secured in the holder 11 having a rolled over edge 14 and lugs 31 for finger grips or 'for the reception of pliers. In operation the spring is compressed so that the finger 18 is first inserted to bring the shoulder 25 below the work after which the spring effects clamping by the wedge finger 16.
Patent GB-526389-A (GB)
Title: Improvements in preparation of vitamin compositions
Filed: 1939-03-15
Abstract: 526,389. Vitamins. DISTILLATION PRODUCTS, Inc. March 15, 1939, No. 8244. Convention date, March 15, 1938. [Class 2 (iii)] Vitamin concentrates are obtained from fish oils by first submitting the oil to a preliminary saponification in which an amount of alkali is used sufficient to saponify the free fatty acid and not more than 20 per cent. excess and then effecting high vacuum unobstructed path distillation. The vitamin esters are not decomposed. Suitable saponifying agents are sodium, potassium lithrum and ammonium hydroxides, sodium carbonate and the basic silicates, phosphates and sesquicarbonates. The treatment may be effected at 40‹C. The oil is decanted from the soap produced, and need not be washed or dried before the distillation. The process may be effected in an inert atmosphere such as nitrogen, or carbon dioxide. An example describes the treatment of pollack liver oil. The Specification as open to inspection under Sect. 91 mentions the use of wheat germ oil as an initial material. This subjectmatter does not appear in the Specification as accepted.
Patent GB-311049-A (GB)
Title: Improved shackle
IPC: A01K75/00
Filed: 1928-03-19
Abstract: 311,049. Baker, S. C. March 19, 1928. Shackles.-A shackle for trawl gear &c. comprises a pair of identically similar U-shaped members 7 having interengaging surfaces at the ends of the arms lying in planes normal to the axis of a pin 11 by which they are secured together. The interemgaging parts may be formed as shown either in Fig. 1 or Fig. 6. The pin may be secured by a nut and lock-nut 20, Fig. 1, or by a screw or split pin.