baber/WOPTO huggingface dataset:
Patent GB-655091-A (GB)
Title: Improvements in or relating to shaping machines and like machine tools
IPC: B23Q5/26
Filed: 1948-03-12
Abstract: 655,091. Shaping machines. ROCKFORD MACHINE TOOL CO. March 12, 1948, No. 7571. Convention date, May 15, 1947. [Class 83 (iii)] [Also in Group XXIX] A shaping or like machine has means for reciprocating the ram comprising a lever arm pivotally mounted on the bed and connected to the ram, a cylinder mounted on the bed having a piston reciprocable therein, said piston being connected to the lever arm, and means for supplying hydraulic fluid alternately to the ends of the piston to reciprocate the piston and cause the lever arm to oscillate about its pivot and thereby to reciprocate the ram. The ram 22, Fig. 2, is reciprocated from an oscillating hydraulic cylinder 23 and double-acting piston 26. The latter is connected through a swivel joint 126 to a crosshead 45 adjustable along a lever arm 35 by a screw 40. The lower end of this arm is pivoted to the machine bed and the upper end is connected by links 55 to the ram. Adjustment of the cross-head 45 connecting the piston to the lever arm is effected by rotating the screw 40 by gearing 42 and 41, nut-like members 133, 134 being secured to the cross-head and engaging the screw. Rotation of the gear 42 may be effected by hand or by a hydraulic motor 44, Fig. 9. A cable 48 connected to the lower end of the screw drives an indicator on the side of the machine showing the effective length of lever arm. Hydraulic circuit.-Pressure fluid is supplied from a constant displacement pump 60, Fig. 9, through conduit 61 to a selector valve 62. In the position shown, fluid passes through an opening 75 to a four-way valve 73 and thence by conduit 95 to the cylinder 24 to drive the piston of the ram-actuating mechanism on its forward stroke. A back-pressure valve 108 is fitted in the return circuit to ensure smooth operation. Adjustable dogs 99, Fig. 12, are set to trip a valve 100, 101 at the stroke ends to permit fluid from the pump to move the valve 73 to its alternate positions and thus reverse the flow of pressure fluid to piston 26. Reversal may be effected manually at any stroke position by hand-operation of the valve 101, through a lever 106, Fig. 12. When the selector valve 62 is moved manually to its alternative position a more rapid stroke of the ram is obtained. The work-table of the machine is given an incremental feed at each reversal of valve 73 by means of an auxiliary piston and cylinder device 109 which operates a rack and pinion 110, 111, respectively, the latter driving the required feed mechanism through a ratchet or similar device.
Patent GB-731745-A (GB)
Title: Improved land-drainage means
IPC: E02B11/00
Filed: 1953-03-19
Abstract: 731,745. Agricultural drainage. WILLIAMS, L. R., and WILLIAMS, A. March 18, 1954 [March 19, 1953], No. 7641/53. Class 33. Land-drainage means comprises a number of pre-cast concrete trough members 10 the lower walls 12 of which have drainage perforations 14 and diverge upwardly to an internal shoulder 17, and the upper walls of which extend vertically at 16, cover slabs 18 with perforations 19 being adapted to rest on the shoulders 17. The lower part 13 of the trough is imperforate, and flanges 20 are provided to prevent the members settling into the ground. Drain pipes 15 terminating at the trough walls discharge water into the trough through the perforations 14.
Patent GB-106828-A (GB)
Title: Improvements in the Cylinders of Hot Air Engines.
Inventor: LEFEVRE HENRY ANTOINE
IPC: F01B17/02
Filed: 1917-05-30
Abstract: 106,828. Lefevre, H. A. May 30, 1916, [Convention date]. Hot-air engines.- The air is admitted to the cylinder under pressure and is heated by contact with the cylinder walls. In order to prevent its becoming heated during admission, the cylinder head a<2> containing the admission valve is insulated from a part of the barrel a<1>, which has a jacket e through which hot fluid circulates. The part a of the barrel in which the piston works is also separated from the part a<1> by insulating-material, and the piston g carries a loosely-fitting insulated displacer g<1>.
Patent GB-975105-A (GB)
Title: Method of pre-stressing and pre-stressed structures produced by such method
Inventor: KINGSBURY ROBERT FREDERICK THO
IPC: E04G21/12
Filed: 1960-03-04
Abstract: 975,105. Prestressed building structures; reinforcing tanks. STRESSED CONCRETE DESIGN Ltd. March 6, 1961 [March 4, 1960], No. 7799/60. Headings E1T and E1V. In a method of pre-stressing a circular building structure, each prestressing cable 5 comprises a plurality of endless loops of wires which extend through peripherally spaced grille members 5a serving to locate the wires and prevent entanglement, and the cables are tensioned by means of a plurality of hydraulic jacks 7 disposed around the structure and acting on the grille members to displace them radially outwards after which spacer members 2a are inserted between the grille members and the structure to maintain the tension when the jacks are removed. Neither the individual wires in each cable nor the corresponding grille openings are shown in the drawings. Each of the wires may itself comprise a stranded cable. Specifications 691,003 and 754,956 are referred to.
Patent GB-449676-A (GB)
Title: Improvements relating to arrangements for sealing and closing containers, more particularly containers having bung closures
IPC: B65D39/08
Filed: 1934-12-21
Abstract: 449,676. Fixing bung sockets. MAUSER MASCHINENBAU GES., 28, Marienstrasse, Ehrenfeld, Cologne, Germany. Dec. 21, 1934, No. 7808/36. Divided out of and addition to 449,035, under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 22, 1935. [Class 83 (iv)] [See also Group XVII] Jointing.-The sealing arrangement for containers forming the subjectmatter of the parent Specification is modified in that the packing e<1>, Fig. 2, of compressible material is continued over the annular ridge of the bushing. In the form shown in Fig. 3 the cap f is completely lined with a sealing material i. In this form a bung &c. may not be necessary, and the cap f may have sealing contact with the container wall. In the form shown in Fig. 4 the ridge b<1> is made from the material of the container, and a lining is not used. In another form the packing d, Fig. 2, may be extended to the base of the cap flange and packing e<1> omitted. The packing d in this case consists of a rubber cylinder of smaller diameter than the ridge b<1> and is deformed into place. Instead of a cylinder, a flat or conical packing ring may be used.
Patent GB-783497-A (GB)
Title: Improvements in or relating to inflators for life jackets and the like
Inventor: SPIDY ALEXANDER RONALD
IPC: B63C9/18
Filed: 1955-03-17
Abstract: 783,497. Storing gases under pressure. KIDDE CO., Ltd., W. March 19, 1956 [March 17, 1955], No. 7882/55. Class 8(2). [Also in Group XXIX] A compressed gas container 1, Fig. 1, suitable for inflating a life jacket comprises an outlet passage 4 leading to a connection 6 and having a seat 5 for a resilient washer 7 carried by the lower end of a longitudinally movable valve member 8 having oppositely extending lateral projections 14 engaging the edges of and projecting through inclined slots 16, Fig. 2, in the wall of the container body, and a valve operating member 19 arranged round the container body and having oppositely disposed inclined grooves 22 engaged by said lateral projections 14 whereby on pulling the member 19 the cam action of the grooves 22 on the projections 14 serves to partially rotate the valve washer 7 and move it away from its seat 5 to effect release of gas. Prevention of rotation of the operating member 19 is effected by flat pressings 20 through which extends a cross-pin 21. The container has a pressure relieving plug 30 and a lead strip 31, Fig. 3 (not shown) when broken indicates that the container has been discharged. Specification 783,496 [Group XXI], is referred to.
Patent GB-736366-A (GB)
Title: Solid fuel fire grates
Inventor: COLEY ERIC HARRY
IPC: F24B1/193
Filed: 1953-03-23
Abstract: 736,366. Open fireplaces. RADIATION, Ltd. March 11, 1954 [March 23, 1953], No. 7893/53. Class 126. In a solid fuel grate of open type having a narrow upper outlet leading to a chimney, each of the front side edges of the body part or frame of the grate has formed on it an inwardly-facing gas-collecting channel adapted to collect and discharge to the outlet combustion products which might otherwise escape to the room. In the grate shown, which is made from iron plates a, b, c, the back-plate b is entirely lined with firebrick e whilst the side-plates a, c are only lined with fire-brick cheeks g to just above the top of the front cover d. Channels h extending from cheeks g to the canopy f are formed on each of the vertical edges of the side-plates a, c. In a grate consisting of a fire-brick body the front edges of which are enclosed by a metal surround, the channels are formed on the inner edges of the surround. A channel may be formed on the lower edge of the canopy f.
Patent GB-163851-A (GB)
Title: A new or improved non-refillable bottle
IPC: B65D49/06
Filed: 1920-03-17
Abstract: 163,851. Bunday, E. March 17, 1920. Bottles, non-refillable.-Relates to non-refillable bottles of the type in which the passage of the liquid through side passages is controlled by a ball valve which is unseated when the bottle is tipped beyond the horizontal. An internally screw-threaded cap a is secured bv a short screw d in an internally threaded boss c, the boss being filled with wax. A ball valve f rests normally on a seating j, and is received in a recess e when the bottle is tilted. Side passages g communicate with a recess h in the top of the cap, grooves i leading to the edges of the cap to form a spout on either side. In a modification, the recess e is elongated to receive another ball to act as a weight. The sealing means may consist, of a metal cheek piece sweated on to the lower edge of the cap a.
Patent GB-137440-A (GB)
Title: Improvements in and relating to lancashire and like steam boilers and the flue wallsthereof
IPC: F23M5/02
Filed: 1919-03-31
Abstract: 137,440. Brooks, S. March 31, 1919. Settings.-A gas-tight joint between the bottom of a Lancashire or like boiler and the walls of the packet or recess in which the bottom blowoff pipe is housed, is formed by a cast-iron, fireclay, or like member resting on the walls of the packet and so .shaped that its upper surface lies adjacent to, and follows closely the curvature of, the bottom of the boiler shell. The cast-metal plate b between the walls of the pocket a and the bottom of a boiler have V-shaped longitudinal ridges f, the edges of which contact with, or are closely adjacent to, the boiler plates. In the latter case, packing h is pressed into the space between the ridges and the boiler plates by screws i carrying blocks g which press against the packing.
Patent GB-179518-A (GB)
Title: Improvements in devices for controlling the tension of threads of silk or cotton
IPC: B65H59/22
Filed: 1922-03-20
Abstract: 179,518. Sawtell, A. H. May 2, 1921, [Convention date]. Guiding and tensioning yarns.-A device for controlling the tension of silk or cotton threads comprises a steel ball 30, which is a loose fit in a vertical cylindrical guideway 17 and rests by gravity on a metal roller 27 mounted on a shaft 22. The thread 35 enters and leaves the device through porcelain eyelets 33. The cylindrical body 16 is adjustably fixed on a base 8 by means of a set-screw 20, the base being provided with a longitudinal opening 11 to accommodate a supporting-rod 12 engaged by a set-screw 14. Openings 37 provide for the escape of lint.
Patent GB-985732-A (GB)
Title: Improvements in or relating to folding brakes
Inventor: PEARCE RICHARD DOUGLAS
IPC: B21D5/04
Filed: 1963-02-28
Abstract: 985,732. Angular bending. KEETON SONS & CO. Ltd. Feb. 18, 1964 [Feb. 28, 1963], No. 8094/63. Heading B3E. In a folding brake of the kind described in Specification 957,853 having a pair of forming members 7, 8, Fig. 3, pivoted about a common axis 11, Fig. 5, and operated in unison to fold a sheet metal or like workpiece 22 about a hold down ram 21, the members 7, 8 are connected by links 10, 41, to a common actuating member 44 which is movable towards and away from the pivot axis to effect pivotal movement of the forming members. The latter are adjustably mounted in slideways on trunnions 10 pivoted on fixed pins; height setting of the members is effected by adjustment screws 18, Fig. 2. Member. 44 comprises a cross beam connected at each end by links 51 to an hydraulic ram 45. The rams 45 are supplied by a motor driven pump 54, Fig. 1 (not shown), through a control valve 56 closable by a handle 57 and having a catch 58 which can be tripped to open the valve by a collar 59 or rod 60 connected to one of the rams. Collar 59 is adjustable against a scale 63, Fig. 2, and when it opens the valve 56 pressure is released from the rams and the members 7, 8 are returned by gravity. Hold down ram 21, Figs. 2, 3, comprises separate carbon-steel blades 35 mounted in a cross bar 34 actuated by an hydraulic system or preferably by lead screws 25 driven through chain drives by an electric motor 28, Fig. 1 (not shown), fitted with a magnetic brake. The motor is stopped automatically by a rod 30 actuating upper and lower limit switches 32, 33. Work setting brackets 39 are mounted on either of the forming members. The hold down ram may be a cylindrical mandrel attached by a flange to the cross bar 34. Straining bars 37 are fitted to the ram 21 and the folding members 7, 8.
Patent GB-213613-A (GB)
Title: Improvements relating to furnace grates
IPC: F23H3/02
Filed: 1924-03-31
Abstract: 213,613. Gerken, P. L. Meurs-. March 31, 1923, [Convention date]. Fire - bars a n d grates.-The adjacent surfaces of fire-bars a r e machined o r otherwise finished so as to have close contact and are formed with recesses such as E constituting conduits through which a current of pressure fluid is passed. With this construction any fine fuel dropping through from the fuel bed is collected and discharged at one end of the grate into a receptacle and in addition the grate is cooled and any downblow between the bars prevented. In the arrangement shown, the reciprocating main bars B are of trough form carrying a removable top surface D, and are maintained in close contact by a spring C bearing on a side plate A. A number of recesses may be provided instead of one and the lowermost may be packed e.g. with asbestos cord. The pressure fluid employed is preferably cold air but a mixture of steam and air or flue gases or any other suitable gas vapour or liqnid may be used.
Patent GB-870480-A (GB)
Title: Improvements in and relating to polymerisation
IPC: C08F220/12
Filed: 1960-03-08
Abstract: A process for producing solid copolymers of ethylene and alkyl acrylates containing 1 to 12 carbon atoms in the alkyl radical comprises heating, at a temperature from 100 DEG  to 350 DEG C. and under a pressure of 15,000 to 100,000 p.s.i. in the presence of a free radical catalyst, a polymerizable mixture comprising (a) ethylene; (b) 0,05 to 1,5 mols of at least one alkyl acrylate per 100 mols of ethylene and (c) as chain terminator a saturated aliphatic ketone containing 3 to 11 carbon atoms, an alkanol containing 1 to 8 carbon atoms or a 1-olefin containing 3 to 10 carbon atoms. Specified alkyl acrylates are ethyl, propyl, pentyl, 2-ethylhexyl and decyl acrylates.  Specified chain terminators are acetone, diethyl ketone, diamyl ketone, diisobutyl ketone, methyl ethyl ketone, methyl isopropyl ketone, ethyl butyl ketone, methyl sec. butyl ketone, ethylpropyl ketone, diisoamyl ketone, methyl n-hexyl ketone, methanol, ethanol, propanol, isopropanol, n-butanol, isobutanol, sec. butanol, pentanol, 3-methylbutanol-1, hexanol, octanol, propylene, butene-1, 2-methylbutene-1, pentene-1, 3-methylpentene-1, 4, 4-dimethylpenten-1, hexene-1 and octene-1.  The catalyst may be oxygen, hydrogen peroxide, persuccinic acid, lauroyl peroxide, dipropionyl peroxide, butyryl peroxide, benzoyl peroxide, acetyl peroxide, peracetic acid, di-tert. butyl peroxide, tert. butyl hydroperoxide, hydroxyheptyl peroxide, alkali metal persulphates, perbonates and percarbonates, and diisopropyl peroxydicarbonate. Commercial ethylene containing small amounts of acetylene, ethane, propane and carbon dioxide may be used.  The process may be effected batchwise or continuously.
Patent GB-1222353-A (GB)
Title: Method of and means for sealing a propeller shaft tube
Inventor: RUDMAN JAMES ALAN
IPC: F16J15/00
Filed: 1967-02-21
Abstract: 1,222,353. Stern tubes. J. A. RUDMAN. 17 May, 1968 [21 Feb., 1967], No. 8130/67. Heading B7S. [Also in Division F2] Sealing means for the stern tube e of a ship's propeller shaft to enable the shaft packing to be examined and/or renewed while the ship is afloat and the propeller is stationary comprises a band a of flexible material, e.g. canvasbacked rubber, which surrounds the shaft between the stern tube and the propeller hub f and is sealingly secured, as by straps b, to the tube e and the hub f. The ends of the band overlap and the straps may be fitted with quick-release buckles (d, Fig. 2).
Patent GB-1516981-A (GB)
Title: Solar heater system
IPC: F24S10/75
Filed: 1975-05-13
Abstract: 1516981 Utilizing solar energy S R SMITH 13 May 1975 [22 Feb 1974] 8154/74 Heading F4U A solar energy collector panel 1 comprises a plate 5 mounted on a box-like support 4, a plurality of pipes 7 for containing heat transfer medium, e.g. water, contiguous with the rear face of the plate, and thermal insulation 8 between the pipes and the base 6 of the support 4. A layer of is provided between the pipes and the insulation to reflect heat back to the pipes. The pipes and plate may be bonded together, formed of copper and painted black. As shown, thermal and atmospheric barriers are provided in the form of glass sheets 10, 11 separated by an evacuated space. Air heated in the spaces between the plate and the insulation may be used to heat part of a building in which the panel is installed. A domestic water heating system, Fig. 5, comprises a solar collector panel 40 connected to a tank 43 into which water heated in the panel passes and which is connected to a cold water tank 44 and to a hot water tank 48 having a hot water feed pipe 51. In modifications, Figs. 6, 7 (not shown), indirect systems, with and without a circulation pump, are provided, the pump being connected to a control system having thermistors at various parts of the system, Fig. 8 (not shown). The solar heaters may be used for the heating of a swimming pool and may be connected, when the pool is not in use, to the heating circuit of a building. The solar heaters may also be used for under-soil heating in a greenhouse by storing heated water during the day and pumping the water through pipes in the soil by night.
Patent GB-1071564-A (GB)
Title: Improvements in halophosphate phosphor treatment process
IPC: C01B25/455
Filed: 1966-02-24
Abstract: Surface contamination of an alkaline earth halophosphate phosphor is reduced by washing the phosphor in a solution of surfamic acid, and rinsing.  The wash is more effective, and cheaper, than known processes using E.D.T.A.
Patent GB-882085-A (GB)
Title: Improvements in or relating to the production of concrete foundation piles
IPC: E02D7/26
Filed: 1958-03-14
Abstract: 882,085. Cast-in-situ piles. GRIMAUD, G. March 14, 1958 [March 14, 1957; April 10, 1957; June 4, 1957], No. 8181/58. Class 68(2). An excavating device for use in forming cast-in-situ concrete piles comprises a threaded preparatory tube and at least a soil removing conveyer and a concentric concrete-filling tube and/or a boring crown and is characterised in that the attachments are adapted to be interchangeably secured within the preparatory tube without removing said tube from a working point already reached in the ground. An outer tube T (Fig. 1) which has a thread 4 is screwed into the ground and has pins 17 projecting internally which engage with slots 16 in a soil removing tube C, which has teeth 14 and is weighted by blocks 6a and 6b which also define a central bore 12 through which water can pass. The tube is divided longitudinally to expedite removal of the contents. In use the tube is carried down by the cuter tube T until full of soil and is hauled out by a cable 18 for emptying. In a modification, Fig. 5, the slots 16 are extended in length and without the curved portion. In a further modification of the tube C, for use in free running soils it is provided with an internal helical member (not shown-see Fig. 6). In place of the tube C a screw-type boring crown 30 (Fig. 13) can be fitted which has slots 31 to engage the pins 17 and a central tube through which water can be pumped. When the outer tube T has been sunk to the required depth the tube C or boring crown 30 is removed and a filling tube 20 (Fig. 7) is inserted and maintained concentric with the outer tube by rings 20b. The upper end of the filling tube 20 has a flange 22 which is supported on the top edge of the outer tube T through a layer of resilient material. A clip 25 is provided for connection of a vibrator. In use the filling tube is let down to a point just above water-level and the lower end is made water-tight with a concrete plug before the tube is lowered to its final position just above the bottom of the bore Reinforcement A comprising a base-plate 28, to which are welded longitudinal rods, is then lowered through the filling tube and drives out the plug. The filling tube and outer tube are then raised simultaneously as concrete is fed in through the hopper 26.
Patent GB-523094-A (GB)
Title: Improvements in or relating to selector switches, as for automatic telephone systems
IPC: H01H67/12
Filed: 1938-12-20
Abstract: 523,094. Automatic exchange switches. STANDARD TELEPHONES & CABLES, Ltd., GRACE, B. B., and SMITH, C. P. Dec. 20, 1938, No. 8189/40. Divided out of 522,467. [Class 40 (iv)] The contacts of a switch of the normally adjacent contact type are built up like relay springs and are operated in succession by one or more studs on an endless tape. The latter may be driven by a step-by-step motor of the kind described in Specification 522,467 but in the arrangement shown is composed of alternate magnetic and non-magnetic links or of a continuous tape carrying magnetic pieces at intervals and passes through one or more solenoids the circuits of which are controlled by an interrupter. The switch is latched in a definite position by a member K controlled by a magnet G which also opens the circuit of the interrupter when de-energized. The tape which as shown passes over a fixed support 9 in the neighbourhood of the contacts, may be guided round the periphery of a rectangular contactfield and carry studs on both edges.