baber/WOPTO huggingface dataset:
Patent GB-989100-A (GB)
Title: Multiple stage mixing apparatus
IPC: B22C5/04
Filed: 1961-05-26
Abstract: 989,100. Edge - runner mills; mixing- machines. NATIONAL ENGINEERING CO. OF CANADA Ltd. May 26, 1961 [June 30, 1960], No. l9135/6 Headings B1C and B2A. A mixing and mulling machine for granular material, e.g. foundry sand, comprises a plurality of communicating cribs in which separate plough and mulling assemblies are rotatably mounted, and means for rotating the assemblies so that the ploughs transfer the material between the cribs. The machine shown comprises cribs 16, 18 having rotatably mounted therein muller and plough assemblies 28, 30 respectively, the assembly 28 comprising muller wheels 52 and ploughs 58, 60 and the assembly 30 comprising muller wheels 76 and ploughs 82, 84. The material to be treated is introduced into an opening 116 in the crib 16 and the treated material is discharged through adjustable openings 120 in the crib 18. The ploughs 58, 82 pick up material from the side walls 22, 24 of the cribs 16, 18 respectively and the ploughs 60, 84 transfer material through the passageway 26 between the cribs by centrifugal force. The gap between the trailing edge 60b of the plough 60 and the wall 22 is less than that between the trailing edge 84b of the plough 84 and the wall 24 so that more material is transferred from the crib 16 to the crib 18 than vice versa. The shafts 44, 62 of the assemblies 28, 30 are driven from a motor 90 through chain and sprocket gearing 98, 100, reduction gear assemblies 102, 104 and disengageable clutch assemblies 106, 108. By disengaging one of the clutch assemblies, the angular relationship between the assemblies 28, 30 can be varied. Two modifications are described. Specification 905,539 is referred to.
Patent GB-387590-A (GB)
Title: Improvements in and relating to wrenches
IPC: B25B13/46
Filed: 1932-07-07
Abstract: 387,590. Wrenches. WALTER, C., 19, Heckinghauserstrasse, Barmen, Germany. July 7, 1932, No. 19251. [Class 61 (iii).] A wrench of the kind comprising a hinged gripping member in the form of an incomplete loop which in operation is contracted to frictionally grip the work has the loop member c of decreasing thickness from the ends c<1>, c<2> to the middle part c<3> and has a spring f interposed between the end of the handle a and the end c<1> of the gripping member c pivoted to the handle at b and acting to cause a lug d on the handle to press on the end c<2> of the gripping member thereby contracting the latter and ensuring driving engagement with the work. Round work is gripped by the member c direct but for hexagonal &c. work a socket k is secured in the gripping member by means of an integral flange at one side and an annular spring at the other, split socket reducers k<1>, k<2> being also employed if necessary. The gripping member c may be of unitary construction or built up of flat inner members secured by one or more rivets j between outer members having extensions c<5> to take the pivot pin b, the members being gapped at e.
Patent GB-800981-A (GB)
Title: Continuous casting mold
IPC: B22D11/041
Filed: 1956-06-21
Abstract: 800,981. Continuous - casting machines. BABCOCK & WILCOX CO. June 21, 1956 [July 19, 1955], Class 83 (1). An upright open-ended fluid-cooled casting- mould comprises horizontally-spaced side-wall sections and associated end-wall sections including mould liner members, vertical edges of at least two of such liner-members abutting faces of adjoining liner-members, and each of the liner-members being supported and guided by separate structural support-plates serving also to define a coolant passageway along the exterior surface of said liner-members. The mould is formed of four sections A-D, Fig. 3. Each side-wall section A, C, comprises a sheetmetal liner 10, Fig. 1, which is supported by a brass skirt-plate 11 which extends to a position 12 intermediate the length of the liner. The liner is supported on the plate 11 by a series of longitudinally-extending keys 24, Fig. 5, which allow longitudinal and transverse thermal movements of the line, and so dimensioned as to leave coolant-passages 33, into which coolant flows from an inlet-chamber 14. The plate 11 is backed by a reinforcing-plate 13 which is supported by a bracket 38 on a surface 39, so that the side-wall may be adjusted for various sizes of ingots. Each end-wall B, D comprises a hollow member 40, Figs. 2 and 6, and a plate-member 56 which defines coolant passages 57 over part of the length of the member 40. The member 40 and plate 56 are bolted to a weir-plate 61, which is in turn secured to a structural member 62. When assembling the mould for the desired cross-sectional dimensions, the edges of the end-walls B, D, are coated with an initially plastic sealing material such as a mixture of graphite and cooked starch.
Patent GB-636594-A (GB)
Title: Improvements in or relating to clamping devices for the construction of scaffolding and other temporary metal structures
IPC: E04G7/16
Filed: 1945-07-27
Abstract: 636,594. Scaffold clamps. HAAS, C. July 27, 1945, No. 19302. [Class 20 (ii)] A clamping device for use in erecting scaffolding consisting of tubes substantially rectangular , in crosssection comprises the combination of two U-shaped clamps in the form of cradles b adapted to embrace the tubes with a substantially flat clamping plate p for each cradle for imparting clamping pressure to the tubes to be secured in said cradles and a fixing screw and nut releasably securing the clamping plate. Each clamping plate p is hingedly mounted at pl on one of the side arms of its cradle and is detachably connected to the other side arm by having an open slot into which the fixing screw v enters, this fixing screw being pivoted to the other side arm at v<SP>1</SP> and clamping pressure being exerted by the nut e. The two cradles are hingedly connected at a and the tubes T and T<SP>1</SP> may be turned about the hinge pin. The cradles may be riveted together back to back, in which case their relative position is fixed, or a filler block f may be interposed, surrounding the rivet r, giving the tubes T and T<SP>1</SP> a variable angular relationship in parallel planes. The tubes T and T<SP>1</SP> may also be clamped together co-axially end to end, Fig. 4, in a common cradle b with a separate clamping plate p for each tube.
Patent GB-714507-A (GB)
Title: Improvements in or relating to apparatus for measuring differential response from two torques
Inventor: SUTTON CHARLES DAVID
IPC: G01L7/04
Filed: 1951-08-16
Abstract: 714,507. Indicating-apparatus. CAMBRIDGE INSTRUMENT CO., Ltd. July 10, 1952 (Aug. 16, 1951], No. 19337/51. Class 106 (4) Apparatus for measuring the differential response from two torques, produced by the deflections of two movements of Bourdon type a, b, comprises a pivoted indicating or other measuring spindle c to which is attached one end of each of two springs g, h, the other ends of which are attached respectively to the two movements. In the apparatus shown, the two Bourdon tubes a, b communicate with, mercury filled tubes d, eanchored to a frame f in which the spindle c. is pivoted. The springs g, h are spiral hair springs and are attached to-collets i, j secured to the spindle c.
Patent GB-337361-A (GB)
Title: Improvements in curtain rails and supporting brackets therefor
IPC: A47H1/144
Filed: 1929-06-25
Abstract: 337,361. Varani, L., Bertuccioli, T. B., and Vabest Co., Ltd. June 25, 1929. Curtains, suspending.- A bracket for supporting a curtain rail consists of a body portion 6 for attachment to a wall, a head portion 7 having a slot 5 to receive the flange 3 of the rail, or vice versa, and an inclined neck portion 9 connecting the body and head portions so that the head portion can be arranged in front of moulding &c. on the wall. The rail has thickened edges 4 for the runners. Specification 274,147 is referred to.
Patent GB-667978-A (GB)
Title: Improvements in or relating to spherical lens grinding and polishing machines
IPC: B24B13/00
Filed: 1949-07-26
Abstract: 667,978. Grinding lenses. ARDERN & CO., Ltd., NEWBOLD, B. 0., and ARDERN, F. W. July 21, 1950 [July 26, 1949], No. 19581/49. Class 60. [Also in Group XXIV] A spherical lens grinding and polishing machine has one or more horizontal rotatable shafts mounted on a reciprocable carriage, the shaft or each shaft being adapted at one or each end to receive a lap or a lens button which runs in a trough of grinding liquid. The lens buttons 14, Fig. 2, have slotted bosses to engage pins 12 carried by the shafts 7 which are driven by halfcrossed belts from a countershaft 2, alternate shafts being driven in opposite directions. The carriage on which the shafts are journalled is slidably mounted in the machine frame and is reciprocated by a crank and connecting rod (not shown). The throw of the crank may be varied and it is driven through bevel gearing from the countershaft 2. The laps 32, which are supported on the ends of pointed rods 27 adjustably secured to brackets 24, are pressed against the lenses by springs 29 provided with tensioning screws 31. Stops 33 prevent the rods from damaging the lenses when the laps are not in position. The troughs carrying the grinding liquid may be raised and lowered into and out of operative position by mechanism (not shown) such as rotatable eccentric supports. Figs. 4 and 6 show a further construction of machine in which the reciprocable carriage is equipped with rollers 38, Fig. 4, and driven by two eccentrics (not shown). The eccentrics are driven from one of a number of shafts 47 each of which drives one of the shafts 34 through pulleys 36, 51 and a belt. The shafts 47 are driven by bevel gearing from a countershaft 49. The pulleys 51 are each made in two parts which tend to separate under the action of springs 55 and are held together by a lever 59 controlled by a cam 56 on a spindle 57 provided with a handle 58. When the spindle 57 is turned, the two parts of the pulley separate to stop the belt drive. The rods 65 for supporting the laps are adjustably mounted on spring-loaded brackets 61 which can be adjusted along a pivot rod 62, a clamping screw 64 being provided for each bracket. A lever 70 having a bayonet slot to engage a pin on the bracket is used to hold the latter in an inoperative position. A hand lever 79, Fig. 6, acting through two levers 73, 77 coupled by a rod 75 enables the troughs 72 to be raised or lowered. Adjustment of the operative position of the trough may be obtained by means of a nut 82.
Patent GB-746147-A (GB)
Title: Optical glass
IPC: C03C3/253
Filed: 1954-07-05
Abstract: 746,147. Glass. ZEISS-STIFTUNG, C., [trading as JENAER GLASWERK SCHOTT & GEN.]. July 5, 1954 [July 17, 1953], No. 19582/54. Addition to 725,206 and 727,305. Class 56. The optical glass of Specification 727,305 is modified in that from 4 to 12 per cent of the alkaline earth oxide is replaced by zinc oxide. The zinc oxide content is preferably between 5 and 7 per cent and that of silicic acid between 8 and 10. A specific example consists of B 2 O 3  36, ZrO 2 4, La 2 O 3  34, CaO 10. SiO 2  10 and ZnO 6 weight per cent.
Patent GB-1146312-A (GB)
Title: Perfluoro sulphonyl fluorides and their preparation
IPC: C25B3/28
Filed: 1966-05-03
Abstract: 1,146,312. Fluorinated compounds. MINNESOTA MINING & MFG. CO. 3 May, 1966 [3 May, 1965], No. 19586/66. Heading C2C. [Also in Division C7] Novel perfluoro sulphonyl fluorides, and their derivatives, substituted by tertiary nitrogen and having only perfluoro-alkylene groups between the acid radical of the sulphonyl group and the nitrogen atom, e.g. compounds containing the grouping wherein n is 1-4, are prepared by electrochemically fluorinating the corresponding sulphonyl halide or its hydrohalide salt. The corresponding sulphonic acids and their esters, alkali metal and ammonium salts may be prepared by known methods. The sulphonyl chloride hydrochloride starting materials wherein n is 3 or 4 may be prepared by reacting a suitable amine with a 1,3-propanesultone or 1,4-butanesultone and reacting the sulphonic acid produced with sulphonyl chloride in the presence of dimethyl formamide. When n is 2, the starting material can be prepared by reacting an appropriate amine with an excess of ethylene chloride to yield an N,N-disubstituted betaaminoethylene halide hydrohalide which is then treated with a large excess of sodium sulphite in water, followed by treatment with SOCl 2  in dimethyl formamide. The betaaminoethylene compounds may also be prepared from the corresponding betaaminoethanol using SOCl 2  or SOBr 2 .
Patent GB-187690-A (GB)
Title: A fastening device or holder for attaching bows and other ornaments to shoes, wearing-apparel and other articles
IPC: A44C1/00
Filed: 1921-07-21
Abstract: 187,690. Hestermann, F. July 21, 1921. Hair-slides.-A holder for bows &c. comprises a, plate B, Fig. 1, having a domed centre-piece A hinged at C to move transversely to the plate B, and provided with a knobbed projection D which passes through a slot E in the plate and is secured by a hinged loop G, Fig. 3, snapped over the knob. The flowers, bows, &c., are held in the centre-piece A. The holder may be mounted on a brooch, hair slide, or the like.
Patent GB-627225-A (GB)
Title: Improvements in or relating to the scavenging of the cylinders of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1946-07-01
Abstract: 627,225. Cylinders. McCULLOCH AVIATION, Inc. July 1, 1946, No. 19621. Convention date, Oct. 12, 1945. [Class 7 (ii)] In a two-stroke engine in which piston-controlled inlet ports are directed upwardly towards a point on the opposite side of the cylinder to the exhaust ports, inserts 25 carrying vanes 20 in line with the port bars are fitted in the transfer passages 13. Partitions 30 may extend downwards past flanges 31 which assist in directing the charge and further guiding ribs 26 may be provided. The Specification as open to inspection under Sect. 91 comprises also similar passages without inserts. This subject-matter does not appear in the Specification as accepted.
Patent GB-713715-A (GB)
Title: Hermetically sealed electric switch
IPC: H01H21/08
Filed: 1952-08-05
Abstract: 713,715. Switch cases. ELECTRO-SNAP SWITCH & MFG:, CO. Aug. 5, 1952 [Aug. 25, 1951], No. 19643/52. Class 38(5)  A hermetically-sealed switch housing 13 comprises a bushing 10 sealed in an aperture 12 in the housing wall and containing a radially and laterally expansible diaphragm 20 through which passes a stud 23 secured thereto by a nut 26. The latter also secures an external operating arm 26a, the stud being pivoted at 35 to the bushing 10. An arm 31, carrying a spring-pressed pin 32 adapted to be brought into engagement with the operating plunger 18 of the switch 17, is secured to the stud and is biased clockwise by a spring 34, so that downward pressure on arm 26a causes operation of the switch. The front wall of the,housing is secured beneath a rolled edge of the side walls.
Patent GB-197354-A (GB)
Abstract: 197,354. Marks, E. C. R., (Rockford Milling Machine Co.). Dec. 7, 1921. Hammer - impression arrangements.- In a single key-bank adding machine of the type described in Specification 107,403, [Class 106 (i), Calculating &c.], provided with a stationary field of stops protruded by the keys for limiting the movement of actuating and printing bars the type-members 9 are struck by spring-controlled hammer levers 386, Fig. 5 furnished with claws 396 engageable and entrained by a rod 394 on a frame 391 pivotally mounted at 390 on a lever frame 389 which, after the necessary displacement of the hammer is swung back to release it. The hammers appertaining to rack-bars not moved from normal position are however held by latches 398 pivoted on the shaft 390 and controlled by cam levers 400 pivoted at 401 and terminating at the rear in noses arranged to co-operate with their respective rackbars. The arrangement is such that during the operation of the machine, those rack bars free to move have commenced to rise and therefore have carried their recesses 402, Fig. 2, out of contiguity with the ends of the levers 400. Hence the latter engage the front edges of the carriers and are thereby restrained in ' movement so that the cam edges 406 of the levers co-operated with pins 405 on the latches which are consequently deflected and release their hammers. If a carrier is not displaced the nose of its lever 400 enters the recess 402 and the lever being thus capable of its full movement does not displace the latch 398 and the corresponding hammer is therefore not released. In order that zeros to the right may be printed, each lever 400 has a lug 407 extending below the lever next on its right so that this latter is held up to cause the printing zero to take place. In the case of the lever 400 corresponding with the pence rack-bar A<x>, as this latter is not moved in decimal computations but its uppermost type member nevertheless has to be struck to print D, means are provided to stop this lever 400 in its hammer release effecting position. These means consist of a lever frame 409 pivoted at 410 and connected by a rod 413 with the adjusting lever 364. When this is set for decimal work, the frame 409 is drawn forward into such a position that a lug 411 lies in the path of the lever 400 which is therefore blocked and causes the impression to occur.
Patent GB-1507209-A (GB)
Title: Valve assembly
IPC: A62C35/02
Filed: 1975-05-12
Abstract: 1507209 Valves M C THOMAS 12 May 1975 [30 May 1974] 19772/75 Heading F2V In a gas discharge valve a main valve member 21 is moved off its seat 23 between an inlet 25 and an outlet 24 when a pilot valve member 28 is moved off its seat 31 by a solenoid 29 (or manually) to connect the inlet with a chamber 34 via a check valve 33, the pressure in chamber 34 acting on a floating piston 17 which abuts a shoulder on a valve stem 16. To prevent inadvertent operation a removable fork 43 is pushed through holes in the casing to hold the piston off the shoulder on the valve stem. A screw 43 allows the main valve member to be moved off its seat manually and a passage (41) containing a check valve (42) allows outlet pressure to enter chamber 34 and hold the main valve open with piston 17.
Patent GB-1094671-A (GB)
Title: Washing machine
IPC: D06F37/30
Filed: 1966-05-06
Abstract: 1,094,671. Washing machines. TEXAS INSTRUMENTS Inc. May 6, 1966 [May 6, 1965; Jan. 3, 1966], No. 20092/66. Heading D1A. A washing machine comprises an agitator, reversible actuating means for oscillating the agitator, and spring means exciting a torsional restoring force during oscillatory displacement of the agitator from its nominal rest position. As shown, the stator 47 of an electric motor journals a rotor 51 rigid with a vertical shaft 25 fixed to an agitator (35). A hollow shaft 23, journalled on shaft 25, is fixed to a perforated clothes drum (31) located within a fixed tub (11). Oppositely-wound torsion springs 69, 71 have their respective inner ends rigid with shaft 23, and oppositely-hooked respective outer ends 89, 91 are disposed on either side of a vertical pin 57 rigid with shaft 26. The motor operates to oscillate the agitator during a washing phase, when pin 57 alternately engages the ends 89, 91 for stressing the springs which thereby exert a restoring couple on the motor. During the spin drying phase, rotor 51 rotates continuously and shaft 23 is coupled thereto by one of the springs. The drum may be either free or positively restrained from rotation during the washing phase. In a modification, tension springs replace the torsion springs.
Patent GB-1216178-A (GB)
Title: Pin feed device for record media
IPC: B41J11/30
Filed: 1969-04-21
Abstract: 1,216,178. Feeding webs. NATIONAL CASH REGISTER CO. 21 April, 1969 [3 May, 1968], No. 20121/69. Heading B6F. A pin feed tractor includes a flexible belt 32 with driving teeth 33 on its inner face, alternate ones of which engage links each including a feed pin 39. Each link comprises two side portions 36 (35, Figs. 3, 5) which engage the edges of the belt 32 and which are joined by a connecting portion 37 having a convex semicircular face 42 and a groove 43 shaped for receiving the respective tooth 33. The side portions each include a pin 48 which pins engage apertures 50 in a plate 49 which is fastened over the outer face of the belt 33 to secure the link in place. The pins 48 may be flattened to hold the plate 49 in place. The belt is driven by sprocket-wheels (20, 22, Fig. 2) having peripheral recesses of shapes conforming alternately to the teeth 33 and the convex faces 42. The tractor also comprises a frame including a fixed rail (60, Figs. 1, 6) which is engaged by depending portions of the side portions 36, (35), and further including a bracket (62) holding the side portions, and hence the pins 39, down while they are in engagement with feed holes in paper to be fed. A paper guide (68, Figs. 2, 3) supports the paper, and a coverplate (72, Fig. 1) holds it in engagement with the pins 39. The sprocket-wheels comprise a driving wheel (20) splined to a drive shaft (18) and an idler wheel (22) supported on a shaft (19) by an eccentric bushing (17) for tensioning the belt 32. The tractor is laterally adjustable along the shafts (18, 19).
Patent GB-320632-A (GB)
Title: Improvements in or relating to apparatus for the production of artificial filaments or threads
IPC: D01D5/04
Filed: 1928-07-11
Abstract: 320,632. Dreyfus, H. July 11, 1928. Apparatus for making filaments.-In order accurately to control the temperature of the spinning solution at the moment when it leaves the nozzle when dry spinning artificial silk &c.. and in particular to ensure that the temperature shall he the same in a group of cells, the solution on its way to the nozzles is raised to the desired temperature by suitable temperature - controlling means, and thereafter during its further passage is heat insulated so that heating from extraneous sources such as the hot evaporative atmosphere of the cells or by heat radiated from the cells, is avoided. By the control of the spinning solution temperature, hollow or voluminous filaments can be the more easily obtained. To raise the solution to the desired temperature, the pipes leading to the spinning pumps or the pipes leading from the pumps, and the filters if these are situated outside the cells, may be provided with heating jackets, or they may be enclosed in tanks containing heating liquid; or the solution may be passed through heat interchangers. As shown, the supply pipes 7 to a number of cells pass through a common tank 9 supported on the roof of the cells but separated therefrom by insulating-material 12; the spinning pumps 5 are mounted on the side wall of the tank. Further, the piping 24 and the filters 8, if these are with. in the cells, are provided with coverings 15, 25 ot lieat-insulating material; and the upper parts of the cells are separated from the cells proper by partitions 14 also provided with heat insulation 16. The filters may however be enclosed within the tank 9. The means for controlling the temperature of the solution may be employed in conjunction with the means described in Specification 203,092, for controlling the temperature of the air of the cells, and also with the devices described in Specification 300,998, for causing the air to pass in close proximity to the spinning- nozzles. Specifications 165,519 and 198,023 also are referred to.