baber/WOPTO huggingface dataset:
Patent GB-810778-A (GB)
Title: Improvements in or relating to pressure regulating and relief valve devices
IPC: F16K17/04
Filed: 1956-03-15
Abstract: 810,778. Fluid-actuated valves. ELECTROL Inc. March 15, 1956 [March 29, 1955], No. 8168/56. Class 135. A pressure regulating and relief valve device for hydraulic systems supplied by two pumps comprises a pair of pressure ports p<SP>1</SP>, p<SP>2</SP> connected to the deliveries of the respective pumps, an outlet port S connected to the hydraulic system and also connected within the device to the ports p<SP>1</SP>, p<SP>2</SP>, two relief valves R<SP>2</SP>, R<SP>1</SP> operable at different pressures connected to the respective pressure ports p<SP>1</SP>, p<SP>2</SP>, and an unloading valve V arranged to by-pass liquid around the relief valve R<SP>1</SP> which operates at the lower pressure so as to relieve the load on the pump connected therewith, the unloading valve V communicating with the outlet port S and being controlled by the pressure therein so as to open at a pressure intermediate the pressures required to open the two relief valves. The pressure ports p<SP>1</SP>, p<SP>2</SP> are formed in a casing 10 also having a bore 19 leading to a common sump. The valves R<SP>1</SP> R<SP>2</SP> which are similar are arranged in parallel bores 20, 21 intersected by a transverse bore 22 also connected to the ports p<SP>1</SP>, p<SP>2</SP> and to the outlet port S. The bores 20, 21 are also intersected by a bore 24 open to the sump bore or port 19. Each relief valve R<SP>1</SP>, R<SP>2</SP> comprises a poppet head 42 co-operable with the inner end of a ported sleeve 25 closed at its outer end by a flanged plug 35 held in place by a snap-ring 37. The poppet head has a stem 41 carrying a piston 40 slidable in the sleeve 25. The sleeve 25 has external flanges 28, 29 provided with sealing rings 30. Pressure liquid in the annular space 31 has access to both sides of the piston 40. The sleeve 25 engages a shoulder 34 and the poppet head 42 is surrounded by a cap 51 which moves with a restricted clearance at 55 in the bore 20 so that when the poppet head opens against a spring 44 a back pressure is developed above the cap 51 which aids in keeping the valve open. The spring 44 engages a flanged plug 45 adjustable by locking -screw plugs 48. A spring- loaded check valve C is arranged in the bore 22 between the outlet port S and the pressure port P<SP>2</SP> and prevents flow of liquid from either of the ports p<SP>1</SP>, S to the port p<SP>2</SP>. The unloading valve V comprises a flanged piston 76 slidable in a flanged ported sleeve 71 held against a shoulder 74 in a bore 70 by a snap-ring 75. The bore 70 intersects the pressure port p<SP>2</SP> and the sump port 19. The piston valve 76 is adjustably loaded by a spring 85 and its flange 78 is subject to the pressure in the outlet port S through a bore 87. When the demand of the system decreases to such an extent that the back pressure in the system opens the unloading valve V, the back pressure on the relief valve R<SP>1</SP> will be so decreased that it closes, thus relieving the load on the driving motor of the respective pump.
Patent GB-177777-A (GB)
Title: Improvements in or relating to the synthesis of ammonia by means of hyper-pressures
IPC: C01C1/04
Filed: 1922-03-21
Abstract: The reaction tube for the catalytic synthesis of ammonia under hyper-pressure conditions is made of mild steel having a low carbon content, which is practically impermeable to the gases at the high temperatures employed.  The following is an example of the percentage composition: Silicon 0.018, sulphur 0.09, carbon 0.098, manganese 0.93, iron the remainder.  It is necessary to provide the part of the tube subjected to the highest temperature conditions with separate strengthening rings or a sleeve made of a resistant metal. Specification 174,041 is referred to.
Patent GB-1089254-A (GB)
Title: Improvements in or relating to automatic devices for the execution of ornamental sewings with sewing machines
IPC: D05B19/00
Filed: 1965-02-26
Abstract: 1,089,254. Sewing machines. NECCHI S.p.A. Feb. 26, 1965 [March 20, 1964], No. 8269/65. Heading D1G. [Also in Division F2] In a zig-zag sewing machine a pack of rotary pattern cams 17, Fig. 1, is movable axially on shaft 13 to engage selectively a follower lever acting on a rod 10 effecting the transverse movement of the gate 4 of the needle bar 3, the gate 4 being suspended by a leaf spring 5 which biasses the gate to the extreme right hand position. As shown in Figs. 4 and 5 the pack of cams comprises spaced profiled discs 36, 37, 38 and the follower 30 has inclined surfaces 45, 46 on its cam engaging end 32 so that it can ride easily from cam disc to cam disc on axial shifting of the pack of cams. This axial shifting is effected by a frame 16 carrying a rack 20 meshing with a gear 21 on a shaft 22 turnable by a knob 23. A disc 25 on shaft 22 has peripheral notches corresponding to the number of cam discs which are engaged by a spring catch 28 to hold the cams in selected positions. In a modified cam arrangement, Fig. 7 (not shown), the edges of the high parts of the cam discs are bevelled inclined surfaces of the follower are unnecessary.
Patent GB-209340-A (GB)
Title: Improvements in and relating to metal edge fittings of compartments of purses and the like
IPC: A45C13/06
Filed: 1923-03-23
Abstract: 209,340. Cheney, C. W. March 23,1923. Purses. - The rivet pivotally securing the " saddle " i to the " sheen " or metal edging of a compartment wall of a purse, &c., has an inner extension k adapted, when the " sheen " is closed over the material of the wall to displace a portion thereof towards a hole l formed with an inner ridge m in the opposite wall of the sheen," giving a secure attachment therefor.
Patent GB-669909-A (GB)
Title: Improvements in or relating to drawing instruments
IPC: B43K23/004
Filed: 1949-03-28
Abstract: 669,909. Drawing pins. MOLESWORTH, R. D. March 28, 1950 [March 28, 1949], No. 8307/49. Class 97 (iii). A drawing instrument including a pen, brush or other drawing element comprises a wheel 14 rotatably mounted at the end 13 of a stem 10 for resting upon the surface on which the drawing is to be made and a head 11 rigidly supported by the stem and adapted to carry the drawing element 12. The head 11 incorporates a universal joint 19 between the element 12 and the stem 10, and comprises two substantially U-shaped spring clips 17, 18, secured together by a nut and bolt 19 passing through holes in the limbs of the clips. A second wheel such as 14 may be pivotally mounted at the opposite end of the stem, so that by setting this second wheel at an angle to the first wheel, the stem and drawing element can follow any desired curve.
Patent GB-231857-A (GB)
Title: Improvements in vessels of glass or quartz
IPC: B01L3/00
Filed: 1925-03-30
Abstract: 231,857. Jenaer Glaswerk Schott & Gen., (Assignees of Zeiss, C. [Firm of]). April 5, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Coatings.-To enable a laboratory or other vessel of glass or quartz to be held in the hand when heated, a coating of vulcanized caoutchouc is applied to the upper part of the outside wall.
Patent GB-348285-A (GB)
Title: Improvements relating to bung and like holes of containers
IPC: B65D39/08
Filed: 1930-03-15
Abstract: 348,285. Closures for bung &c. holes. DEHN, F. B., 103, Kingsway, London.- (American Flange & Manufacturing Co. ; 4646, Arthington Street, Chicago, U.S.A.) March 15, 1930, No. 8431. [Class 21.] A container having a wall of thin sheet metal and in which a closure plug 7 engages a screwed bush 5 whose outer surface is polygonal at its upper flange and nests in a polygonal pocket constituted by a bottom 2 and wall 3, is provided with a reinforcing member 9 having a polygonal wall nesting with the pocket and held by turning the bottom edge of the bush over tubular parts 4, 10 of the body and reinforcing member respectively.
Patent GB-871204-A (GB)
Title: Waggon tippler
IPC: B65G27/00
Filed: 1959-03-11
Abstract: 871,204. Tipping waggons. DEMAG A.G. March 11, 1959 [March 13, 1958], No. 8477/59. Class 78 (4). In a waggon tippler in which the waggon 3 is rotated in a frame 1 for transferring its load to a transfer shoot 4, means are provided for retaining the shoot stationary during an initial rotational movement of the frame 1 and to move the shoot into a loading position on a further rotational movement of the frame so that the load in the waggon can be emptied on to the shoot gradually. As shown, Fig. 1, as the waggon tippler frame 1 initially rotates in a clockwise direction, the bolts 5, attached to the end of the discharge shoot 4, slide along the slots 7. As the waggon 3 and the frame 1 approach the position shown in chain-dot, a curve 8a in the slot 7 lifts the bolts 5 off the supporting cam surfaces of a member 6 so that the end of the slot 7 carries the shoot forward to its loading position under the waggon, as shown in Fig. 2. The shoot is then unloaded by the operation of a vibrator 10 and subsequently returned to its initial position when the frame is rotated in an anti-clockwise direction. During the initial rotation, a flap 16 which is pivoted at 17, and which is biased by means of a weight or springs, prevents large lumps of material from falling out of the waggon prematurely. In a modification the member C is replaced by a biased lever which is disengaged from the bolt 5 by means of a cam. A sprung pawl is also provided to retain the bolt 5 at the end of the slot during the last part of the clockwise rotation of the waggon tippler frame.
Patent GB-248934-A (GB)
Title: Improvements in or relating to electric insulators, and to means for making the same
IPC: H01B17/02
Filed: 1925-03-30
Abstract: 248,934. Haddn, R., (Corning GLass Works). March 30, 1925. Insulators. - A high-tension insulator has a suspension pin embedded in the insulating material and a gasket of lead or solder is interposed between the material and the embedded pin. The insulator comprises a body A, Fig. 4, of some suitable insulating material, which may be Bakelite or the like but is preferably a low-expansion glass, such as the glasses described in Specification 100,738, [Class 56, Class]. It has a skirt B with depending petticoats C, and a knob D of which the lower portion d is bevelled inwardly to provide a neck portion E. A cap G fits over the knob D and screws on to a ring K which is made in two semi-circular parts that fit around the neck E. A gasket L, of cork or other suitable material, is inserted between the cap and the top of the knob D, and a gasket M of lead, solder, or other soft material is interposed between the ring K and the bevelled portion of the knob. The suspension pin N comprises a head P having a depending shank p which is screwed into a lower part R. The head is preferably of conical shape, but it may be of other shapes so long as the head is larger than the opening in that part of the insulator which surrounds the pin. A gasket U of lead or solder is interposed between the head and the insulator to cushion the head and to distribute the load. The pin may also be made in one piece. A machine for making the insulator of glass and for embedding the pin is described in the Specification.
Patent GB-139651-A (GB)
Title: Improvements in connecting the parts of sheet metal furniture, and particularly drawer cases, drawers and the like
IPC: A47B88/12
Filed: 1919-04-04
Abstract: 139,651. Roneo, Ltd., and Chipperfield, W. April 4, 1019. Cabinets ; drawers; shelves, -Metal sheets composing sheet-metal furniture, such as drawer cases, drawers, and shelves, are connected by means of channel - section strips 1, fixed to one of the sheets and having inwardlyturned flanges 2, 3 which are adapted to engage with turned-up sections 7 of the edges of the other sheets 6. The sheets 6 are slid into position.
Patent GB-823512-A (GB)
Title: Improvements in wall brackets
IPC: A47B96/06
Filed: 1958-03-17
Abstract: 823,512. Brackets. JOLLIFFE, B. M. March 17, 1958, No. 8564/58. Class 52(5) A bracket for supporting pelmet boards, shelves &c. comprises a back plate 1, a support member 2 and a resilient retaining member 3. The members 2, 3 are welded to the back plate (Fig. 1) or the ends 8, 27 of one or both of the members pass through slots in the back plate (Figs. 2, 3). In further modifications the members are secured at an adjustable distance apart by interengaging teeth or by the passage of a securing screw or nut and bolt through selected apertures.
Patent GB-600024-A (GB)
Title: Improvements in or relating to radio detecting devices for frequency modulated signals
IPC: H03D3/04
Filed: 1945-04-06
Abstract: 600,024. Frequency modulation. PHILCO RADIO & TELEVISION CORPORATION. April 6, 1945, No. 8574. Convention date, Oct. 24, 1944. [Class 40 (v)] A frequency discriminator comprises means for converting signals into square pulses of constant amplitude, and spacing inversely proportional to the frequency, and means for obtaining an audio-frequency signal of magnitude proportional to the number of pulses produced during an interval determined by a timing circuit. The output of the intermediate frequency stages are applied through a coupling coil 10 and biassing network 12, 13 to the control grid of a pentode 11, which conducts for a part only of each positive half-cycle of the intermediate frequency. The pentode 11 has a sharp cut-off and provides an output composed of square pulses. The timing circuit 14 comprises a free-running multivibrator operating at a fixed frequency and adjusted so that one triode 17 conducts for much longer periods than the other triode 18. During the conducting period of the triode 17, the lower plate of condenser 20 is at a very low potential. While pentode 11 is driven below cut-off, condenser 21 charges through the diode 16. When pentode 11 conducts, the point 23 tends to a negative voltage, diode 16 ceases to conduct and diode 15 conducts, thus permitting condenser 21 to discharge into condenser 20. When pentode 11 is again cut-off, condenser 21 recharges, but condense? 20 retains its charge since diode 15 no longer conducts. Condenser 21 has a capacity many times larger than that of condenser 20, the negative voltage across which increases by a small amount for each cycle of intermediate frequency, until valve 17 of multivibrator 14 ceases to conduct, when condenser 20 will be discharged through diodes 15, 16. The voltage appearing at the point 24 is an audio voltage proportional to the frequency of the signal, with components of the intermediate and multivibrator frequencies, which are removed by a filter 25, 26. The output of the pentode 11 consists of pulses of uneven duration, but pulses of equal duration may also be used.
Patent GB-278598-A (GB)
Title: Improvements in adapters or connectors for use in connection with electrical installations
IPC: H01R33/94
Filed: 1927-03-29
Abstract: 278,598. Lundberg, G. C., Lundberg, P. A., and Pegg, G., March 29, 1927. Earth -continuity couplings.- An earthingwire 15 attached to all electrical apparratus is connected to the bayonet pins 11 of an adaptor or connector 13 to make connection with an earthed counterpart. The wire 15 lies in a groove 16 in the body of the adaptor and is secured by a nut 14. If the two pins 11 are separate one only is connected to the wire 15.
Patent GB-526523-A (GB)
Title: Improvements relating to change-speed gearing for machine tools
IPC: B23Q5/14
Filed: 1939-03-18
Abstract: 526,523. Change-speed gearing. WARNER & SWASEY CO. March 18, 1939, No. 8735. Convention date. March 19, 1938. [Class 80 (ii)] A preselective control for change - speed gearing in the spindle or feed drive of a machine-tool such as a turret-lathe, comprises a pair of gapped profile-plates 64, 64a, Fig. 4, which are moved in one linear direction to preselect, and are closed together in another linear direction in the same plane to actuate three gear-shifter levers 52b, 54b. 58, controlling eight speeds. Preselection is effected by turning a hand-knob 63b, which, through pinions 63, 62, 61 and a rack, slides, along guides 60, a rectangular frame 59 carrying the profile-plates 64, 64a, which are thereby selectively positioned in relation to the interposed shifter-levers 52b &c. The profileplates 64, 64a are transversely slidable in the frame 59 and, to execute a change, are moved together inwardly over the shifter-levers 52b &c. by pulling down a handle 49, Fig. 3, a depending part 71 of which, through a bell-crank lever 69 and link 68, Fig. 4, rocks a pair of intermeshing toothed segments 67, the free ends of which are pivoted to bars 65 slidably longitudinally in the profile-plates 64, 64a, whereby the transverse movement only of the bars 65 is imparted to the profile-plates 64, 64a to execute the change. An additional pair of intermeshing toothed segments 66 assists in equalising the transverse movement of the respective profile-plates. The executive hand-lever 49, Fig. 3, is pivotally mounted in a tower 48, which, by horizontal movement of the lever 49, can be turned about a vertical axis in either direction for controlling forward and reverse main-clutches 22, 23, Fig. 2, through which the change-speed gear is driven. Such movement, without affecting the speedchanging part 71 of the lever, turns a spindle 48a on a cranked lower extension 48 of the tower 48, thereby operating a selector fork 45 of the forward and reverse clutches 22, 23. The speedchanging shifter - levers are concentrically pivoted, one, 58, being secured to an inner shaft 53, operating a shifter-fork through a lever 57 and link 56, whilst the other levers 52b. 54b are secured respectively to sleeves 52a, 54a, journalled on the shaft 53 and directly carrying shifter-forks 50, 54. The shifter-forks directly straddle the periphery of the gear wheels to be shifted. The change-speed and reversing gear is shown in Fig. 2, and comprises a driving shaft 20, having the clutches 22, 23 for driving a parallel shaft 27 forward or reversely. Twospeeds are imparted to a third shaft 35 by a sliding pair 31 on the second shaft 27. The third shaft 35 drives a pair of wheels 36 freely journalled on the the final driven spindle 19 and serving to drive a fourth shaft 41 at either of two speeds by means of a sliding pair 40 on that shaft. The fourth shaft 41 drives the final driven spindle at either of two ratios provided by a sliding pair 42. this arrangement yielding eight speeds in either direction.
Patent GB-749746-A (GB)
Title: Improvements in or relating to buckles
IPC: A44B11/22
Filed: 1952-04-07
Abstract: 749,746. Buckles. HALL, D. D., and BOUTCHER, C. E. D. April 2, 1953 [April 7, 1952], No. 8792/52. Class 43. In a buckle for adjustably fastening straps and other flexible strips and comprising a rigid channel-section body accommodating a strip having a hole therein engaging a fixed pin upstanding from the base of the channel and a hinged rigid cover on the body which, when closed, on the body retains the strap &c. in engagement with the pin, at least one channel side wall has an inwardly directed lip against which the closed cover abuts and a turnbutton on the inner side of the cover, when this latter is closed, engages beneath the lip to lock the cover. As shown, the side walls C of the channel-shaped body A of the buckle each have inturned lips B and the cover J, hinged by rivets L to the side walls C, is provided with turnbuttons M each in the form of a dished circular disc with a segment removed, the buttons being adapted when rotated as by milled knobs on the outside of the cover to positions such that the peripheral straight portions N face parallel to adjacent lips B, they can pass freely past the lips to allow the cover to be raised and the strap H disengaged from the pin D upstanding from the base of the body A, and when in any other position the arcuate peripheries of the buttons M engage beneath the lips B, thereby locking the cover J. There may be more than two buttons M or only one and in this latter case the button engages both lips B and its head may have a transverse slot so that it can be turned only with a tool such as a coin or the thumb nail. Each button M may be spring-biased towards its inoperative position, e.g. by a combined torsion and compression spring, whilst adapted to be positively located as by interengaging serrations in any other angular position. The body A has its base extended at E beyond the side walls C for attachment of a co-operating strap member F. The milled knobs may have an index or straight portion corresponding to the flat portions N of the buttons M for reference in relation to the longitudinal sides of the cover or to a rib or other index in the cover to indicate the positions of the buttons.
Patent GB-900385-A (GB)
Title: Improvements in or relating to an entirely stuffed and covered furniture armchair
IPC: A47C7/30
Filed: 1959-03-13
Abstract: 900,385. Seats; upholstery. AIRBORNE. March 13, 1959 [May 9, 1958], No. 8813/59. Classes 52 (2) and 52 (4). An upholstered armchair has a framework 1 forming the back and seat element mounted between arm rests 2, 3, the framework 1 consisting of side members 4, 5 each formed by two trapezoidal parts 6, 7 with a U-section connected to each other by welds 8 and cross-members 10 ... 13. The arm-rests are each made of U-section parts with end-plates 22, 23 and are connected to the chair framework by bolts. Struck-out lugs on side-members 4, 5 secure the ends of sinuous springs 19 kept apart by pins 19a and foam latex cushions 44, 45 have canvas 46 glued beneath while the top of the cushions is covered with fabric 47 retained by clips 48. Fabric covers the arm-rests which have resilient pads. Legs 34, 35 fit into supports 32, 33 mounted inside each arm-rest.
Patent GB-802155-A (GB)
Title: Improvements in or relating to lubrication systems for the bed and table of machine tools
IPC: B23Q1/38
Filed: 1955-03-26
Abstract: 802,155. Lubricating. NOBLE & LUND, Ltd., NOBLE, C. S., and WALKER, L. March 1, 1956 [March 26, 1955], No. 8897/55. Class 12 (3). [Also in Groups XXII and XXIII] A lubricating system for the sliding surfaces of the bed and table of a machine tool comprises lubricant supply ducts 21a located in longitudinally-disposed recessed underfaces 17 of the table B, a series of spaced lubricating grooves 19 extending laterally from the supply ducts, and pressure-equalizing ducts 21b connecting the grooves 19 in pairs so that lubricant can pass from one another of a pair. Preferably channels 18 are formed in the table and each is fitted with H-section insertions 21 separated by blanking members 20, the members 21 providing the ducts 21a, 21b with communicating holes 21c, and the blanking members each being formed with a slight clearance 20a below its underface to provide a constricted passage for the oil. Oil is supplied to the channel 18 and grooves 19 by a pump through pipes 8, 6, 4 and 5, the maximum pressure of the oil supply being regulated by a relief valve. For rotary machine tools the longitudinal grooves are circular and the transverse grooves are radial.