baber/WOPTO huggingface dataset:
Patent GB-725506-A (GB)
Title: A process for causing silicone rubber to adhere to metal
IPC: B32B15/08
Filed: 1953-07-30
Abstract: Silicone rubber is caused to adhere to iron, zinc, aluminium or alloys thereof by phosphating the metallic surface, contacting the metal surface with a layer of silicone rubber and subjecting the assembly to heat and pressure.  Phosphating may be effected by bonderizing, coslettizing, or parkerizing using iron phosphate, zinc phosphate, manganese phosphate or the corresponding acid phosphates dissolved in dilute phosphoric acid.  The phosphated surface is preferably cleaned by rinsing in toluene, carbon tetrachloride, or acetone and the silicone rubber applied in the form of solid stock, or a paste or it may be applied as a solution in an organic solvent by spraying, brushing or dipping and the solvent removed, preferably by heating at a temperature below 100 DEG C.  Curing may be effected at 125-150 DEG C. for 1-10 minutes under a pressure of 20 lbs. per square inch and then heated in an oven for 1-4 hours at 150 DEG C., 1-4 hours at 200 DEG C. and 4-24 hours at 250 DEG C.  The rubber may contain foaming agents which produce foamed silicone rubber.
Patent GB-1421818-A (GB)
Title: Nickel electroforming process
IPC: C25D3/14
Filed: 1973-05-04
Abstract: 1421818 Continuous electro-forming nickel belt XEROX CORP 4 May 1973 [8 May 1972] 21261/73 Heading C7B A thin, flexible ductile seamless Ni belt, serving as a support for an electrically photo-sensitive image retention surface e.g. comprising vitreous Se in electrostatographic reproduction apparatus, is electro-formed electro-depositing Ni from an aqueous Ni sulphanate solution on to a rotating cathode support mandrel, e.g. an Al core coated with a Cr layer, the anode being of Ni e.g. contained in an annular basket, and cooling the Ni coated mandrel to effect parting of the Ni belt due to different coefficients of thermal expansion. The solution is agitated to continuously expose the mandrel to fresh solution e.g. to flow across the mandrel surface at a rate of 4 to 10 linear feet/sec, and maintained within the electro-forming zone at 140-160F and a stable equilibrium composition comprising 12 to 15 oz/gal total Ni, 0.11 to 0.23 mole/gal NiX2.6H20 (where X is Cl, Br or F) preferably 1.6 to 1.7 oz/gal NiCl 2 .6H 2 O and 4.5 to 6 oz/gal H 3  BO 3 . The solution from the electroforming zone is electrolytically purified e.g. using a steel cathode plate and anode baskets containing Ti tubes to remove metallic and organic impurities, continuously charged with 1 to 2 x 10<SP>-4</SP> mole of a stress reducing agent, e.g. Na sulphobenzimide optionally mixed with 2-methylbenzenesulphonamide, per mole of Ni electro-deposited, optionally charged with up to 0.0014 oz/gal surfactant e.g. Na lauryl sulphate and de-ionized water, filtered to remove any solid impurities, cooled and recycled. The C.D. is at least 200 A.S.F. of cathode surface. The pH is preferably 3.9 to 4.1.
Patent GB-322428-A (GB)
Title: Improvements in or relating to metal chairs and sleepers for railways
IPC: E01B9/26
Filed: 1928-07-23
Abstract: 322,428. Ebbw Vale Steel Iron & Coal Co., Ltd., and Barrett, G. July 23, 1928. Right to Patent relinquished. Chairs, securing to sleepers. - Rolled or stamped chairs, with integral jaws for securing bull-head or flange rails, have projections or strips below their lower surface and welded to the sleeper. In one form, Fig. 1, the chair 1 has transverse projections 2 extending through slots 3 in the sleeper 4 and are-welded to the underface of the sleeper. The projections may be formed by shearing out parts of the ends of the chair and bending down the remaining parts, or by rolling flanges on the underface of the chair and cutting away parts to leave the projections. In another form, Fig. 7, the projections 5 rest on the sleeper face and are secured by resistancewelding aided by pressure. Strips may be provided instead of projections and may be arranged around the edges of the chair as at 7, Fig. 11. The strips may be continuous, and may be formed by rolling or by subsequent pressure. The chairs may be used for crossing-work and secured to longer sleepers at any required spacing. The Provisional Specification states that flat-base chairs may be secured by spot, strip, or edge welding.
Patent GB-1384524-A (GB)
Title: Radial compressors
IPC: F04B39/00
Filed: 1973-05-04
Abstract: 1384524 Reciprocating gas compressors GENERAL MOTORS CORP 4 May 1973 [18 May 1972 27 July 1972] 21301/73 Heading F1N [Also in Division F2] A reciprocating refrigerant compressor comprises two pairs of opposed mutally perpendicular co-planer cylinders 14, 16, and 18, 20 formed in a cylinder housing 12, an annular sheet metal closure member 34 surrounding the housing 12 and being sealed to the peripheries of the endwalls 22, 36 thereof thereby to enclose a discharge chamber 66 formed by the spaces between the cylinders, and a piston 110 reciprocable in each cylinder by a mechanism 44disposed in a sealed central suction cavity 46 in the housing 12. The input drive of the mechanism 44 is a shaft 124 rotatably mounted in needle bearings 128, 144 located, respectively, in the end-wall 22 and a tubular extension 150 welded to the domed endwall 146 of the closure 34. The shaft 124 has a central eccentric portion 136 on which is journalled a square slider block 120, each face of which is in sliding contact with a flat surface 116 on the rigid stem 114 of a respective piston 110. Opposite pistons 110 are joined together by one or other of two yokes 212, 214 fixed to the sides of the piston stems by screws 220, 224, 228 &c and provided with apertures 244 for accommodating movement of the eccentric 136. Balance weights 184, 194 are secured by screws 188, 198, to the webs, 138, 140 connecting the eccentric 136 to the journalled portions 126, 142 of the shaft, the latter portion being provided with a seal assembly 162. In operation suction gas enters the cavity 46 through an opening (48), Fig.7 (not shown), in the end-wall 22 and flows through apertures 250 in the pistons into the respective cylinders under the control of reed valves 248. From each cylinder the gas is discharged through openings 88, 90 in a plate 86 retained against a shoulder 87 formed in the cylinder end. Each plate is held by a domed member 98 having cutouts (100) round its periphery for the passage of gas into the chamber 66 via the clearance 62 between the annular closure 34 and the respective cylinder end. A rectangular or circular reed valve 96 whose movement is limited by a strip 106 or annulus (336), Fig.8 (not shown), controls flow through the openings 88. A second embodiment having a modified piston stem and yoke assembly and housing construction is described, Fig.8 (not shown).
Patent GB-602358-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/28
Filed: 1945-08-21
Abstract: 602,358. Safety razors. RAKBLADSAKTIEBOLAGET SVENSKT STAL. Aug. 21, 1945, No. 21335. Convention date, Dec. 9, 1944. [Class 30] In a safety razor of the kind in which a double-edged blade is disposed between a protector plate and a clamping plate drawn together by male and female threaded members housed in a tubular manipulating handle by relative rotation therebetween, the male member is fixed to the clamping plate, the handle is fixed to the protector plate, and the female member is operable by a spindle within the handle, which handle is inclined to the plates at an angle of 60 degrees. In one form, Fig. 1, the handle comprises a tubular body 13, 14, bent at 60 degrees to the protector plate 4 and a spindle 11 rotatable by a knob 12 is journalled therein and rotates a female threaded member 8 engaging a screwed stud 5, by means of a coupling 9, or a universal joint or ball joint. Alternatively, a flexible shaft may be used, as in the form of a helical spring, which may replace the spindle 11. In a second form, Fig. 2, the stud 5 is bent at an angle, and the spindle can be screwed directly on to it. In a modification, the stud is inclined over its whole length at an angle of 60 degrees to the plates, and the inclined portion 13 of the handle is secured directly to the plate 4. In this case the holes in the blade and in the protecting plate must be large enough to allow insertion of the pins 2 of the clamping plate. The Specification as open to inspection under Sect. 91 describes also a form in which the stud is perpendicular to the plates and is engaged by an inverted frustro-conical internally-threaded member constituting part of the handle and connected either rigidly or rotatably to the inclined part thereof, which has no inner spindle, special stop shoulders being provided to secure the handle in its proper position relative to the length of the protective plate. This subject-matter does not appear in the Specification as accepted.
Patent GB-488679-A (GB)
Title: Improvements in or relating to bag filters
IPC: B01D37/00
Filed: 1937-08-03
Abstract: 488,679. Filters. FITZGERALD, L. A. Aug. 3, 1937, No. 21371. Convention date, March 8. [Class 46] The upper end of a filter bag element is closed and the bag supported by a device comprising a plate 10, Fig. 2, with hollow central stud 16, to which the inlet pipe 24 is connected, and a clamping member 12 forced against the plate by a nut 13 screwing on the. stud 11. The inturned end 27 of the bag 23 is held between a ring 18 of resilient material like vulcanized rubber and a rubber ring 21, the rings being let in to recesses in the plate and member 12 respectively. Fig. 3 shows a modification in which the bag is held between a clamping. edge 21a of the member 12 and a rubber ring 18a on the plate. The plate is formed with a recess 28 in which the end of the bag is packed and held frictionally while the clamping member is brought into position.
Patent GB-597496-A (GB)
Title: Improvements relating to electric contact arrangements
IPC: H01H85/20
Filed: 1945-08-22
Abstract: 597,496. Switch contacts. SIEMENS BROS. & CO., Ltd., and HAMBLEN, R. J. Aug. 22, 1945, No. 21425. [Class 38(v)] [Also in Group XXXVI] In a contact arrangement for a disconnecting link or fuse, a wedging member 13, when rotated by a lever 14, urges contacts 3, 4 on the carrier 2 towards each other to grip a fixed blade contact 5. A pin 11, screwed into a fixed bracket 9, passes through holes in contacts 3, 4, and a slot in contact 5 and loosely carries the wedging member 13 and a compression spring 15. The contacts 3, 4 are moved to grip the contact 5 by the interaction of a camshaped part 7 on contact 4 and a corresponding surface on member 13, the limbs of contact 4 being separated by a spacing piece 8. In Fig. 2 (not shown), the member 13 and the outer of the two limbs 4 have corresponding humps and depressions which are moved out of register to cause the gripping action. In the operative position of the wedging members, the levers 14 at each end obstruct access to the holder 2. The Specification refers also to co-operating surfaces on the end stop 12 and member 13.
Patent GB-320928-A (GB)
Title: Improvements connected with the extrusion of metal
IPC: B21C23/24
Filed: 1928-07-24
Abstract: 320,928. British Insulated Cables, Ltd., and Lauder, J. G. July 24, 1928. Wire. - Steel or other rod, wire, tube &c. is given an adhering coating of aluminium or like metal by feeding the rod &c. in a shield 2 through a chamber 4 containing the aluminium which is extruded, with the rod, through a die 9 in line with the shield. The shield 2 is adjustably carried by a frame 3 mounted on the chamber 4 which can be raised by an hydraulic plunger 6 so that a stationary plunger 1 can extrude the metal, which has been poured into the chamber, when plastic. The plunger 1 slides on the shield and is mounted by means of legs 8 on the frame 7. The die 9 can be adjusted by bolts 18.
Patent GB-880960-A (GB)
Title: Improvements in or relating to crutches
IPC: A61H3/02
Filed: 1958-07-04
Abstract: 880,960. Crutches. BESSANT, C. L. Oct. 2, 1959 [July 4, 1958], No. 21447/58. Class 81 (2). A crutch comprises a supporting stem 1, at least the upper end of which is tubular, a hand grip arranged intermediately on the stem, an arm-pit rest 18 mounted on a tubular shank 17 slidable longitudinally within the upper end of the stem 1, a pair of guide bars 30 carried by the rest, one on each side of the stem to slide through a guide block 31 and spring means 35 for supporting the arm rest when under load. In a modification, instead of using a single enclosed spring the weight is taken on two springs, each carried on one of the guide bars and, in this case, the tension of the springs is made adjustable by sleeves, screwed into the guide block and against which they bear. If desired a form of hydraulic dashpot may be incorporated designed to give restrained downward movement of the arm rest but free upward movement.
Patent GB-573880-A (GB)
Title: Improved apparatus for dehumidifying air and gases
IPC: F16C1/10
Filed: 1943-12-22
Abstract: 573,880. Drying air &c. ; desiccants. ANDEREGG, F. O. Dec. 22, 1943, No. 21468. [Class 34 (i)] Air or other gases are dried by passage over one surface of a wall formed of a hygroscopic moisture-pervious substance which is continuously regenerated by heated air or gas flowing in direct contact with its opposite surface. In the apparatus shown, the wall is in the form of a long vertical tube 10 which is mounted in a cylindrical housing 11 and is connected at its lower end to a source of heated air or gas, or is provided with a burner 17, the air &c. to be dried flowing through the said housing from an inlet 15 to an outlet 16. Preferably the tube 10 is fitted with a coiled pipe 18 through which cooling water &c. is circulated for absorbing the latent heat of condensation released. The tube may be moulded from calcium hydrosilicate or calcium hydroaluminate, or a combination of the two, with calcium chloride or other hygroscopic agent, as described in U.S.A. Specification 2,255,041.
Patent GB-923606-A (GB)
Title: Improvements in or relating to feeding devices for hollow open mouthed containers
Inventor: GOLD JOHN
IPC: H01J9/46
Filed: 1958-07-04
Abstract: 923,606. Endless conveyers. BADER MACHINERY CO. Ltd. July 2, 1959 [July 4, 1958], No. 21573/58. Class 78 (1). A device for transferring hollow containers having upwardly open mouths and narrower bases from a feeding device to a filling device comprises a pair of endless bands on which the containers are conveyed, the conveying runs of the bands being downwardly inclined, parallel and spaced apart a distance sufficient to receive the narrower bases of the containers. As shown, electric lamp caps are fed from a hopper 9 up a vibrating spiral 13 and over an outlet channel 4 to the endless bands 30 which are supported by driven pulleys and by idlers 37, the spacing apart of the bands being adjusted by adjustment of one of the driven pulleys on the drive shaft. The two belts may be driven at the same speed or, if the lamp caps are of the bayonet type, the belts may be driven at relatively different speeds in order to rotate the caps, thereby allowing the bases of the caps with the bayonets to drop between the bands. The caps are fed from the bands to an endless belt 7 from which they are transferred by means of a pusher 26 to an intermittently-rotated disc having pockets 21, 22 which pass beneath nozzles 16 of cement pumps 15, the filled caps then being transferred to a machine for attaching the caps to the glass bulbs of the lamps.
Patent GB-319445-A (GB)
Title: Improvements in or relating to damper mechanism for stringed musical instruments
IPC: G10C3/26
Filed: 1928-07-25
Abstract: 319,445. Wade, H., (Mills Novelty Co.). July 25, 1928. Player-pianos ; actions, electromagnetic.-The damper rail is operated through a lever 16 to raise the dampers by means of an electromagnet 12, and is held in that position by a latch 18 which engages a stud 21 on the lever; the latch is released by a second electromagnet 23 also under tune-sheet control, the latch being pivoted at 19 and carrying an armature 22. A felt pad 23a is provided to reduce noise. Specification 264,641 is referred to.
Patent GB-953205-A (GB)
Title: Method of producing slide fasteners
IPC: A44B19/54
Filed: 1960-06-20
Abstract: 953,205. Moulding zip fastener elements. H. PRYM, A. PRYM, and D. PRYM. June 20, 1960 [June 26, 1959; Dec. 24, 1959], No. 21619/60. Heading B5A. [Also in Divisions D1 and E2] A zip fastener comprises a tape 13 having fastener elements 17<SP>1</SP> on one edge constituted by projecting loops of nylon monofilament. The loops are moulded at 35 after weaving by a twopart die 36, 37 and a plunger 40. Heat treatment is then given to release stresses and set the loops to shape. Specification 826,403 is referred to.
Patent GB-971603-A (GB)
Title: Sheet delivery apparatus
IPC: B65H31/32
Filed: 1962-06-05
Abstract: 971,603. Stacking sheets. HARRIS-INTERTYPE CORPORATION. June 5, 1962 [June 21, 1961], No. 21633/62. Heading B6H. A sheet-delivery mechanism including a pile-supporting platform 12 which is lowered as a pile of sheets is built up thereon by means of a chain conveyer 10, has a temporary pile support which can be disposed over a pile of sheets on the platform 12 to -intercept sheets, the pile support comprising two sections 20a, 20b disposable in side-by-side relationship in which positions they intercept the sheets and having withdrawn positions on opposite sides of the platform in which positions they are clear of the falling sheets. The sections 20a, 20b are slidably mounted on a pair of parallel rails 22 disposed generally horizontally beneath an end stop 14 and jogging devices 16, 16a for the sheets, rollers 23, 23<SP>1</SP> on the sections engaging the rails. The right-hand ends of the rails 22 as shown in Fig. 1, are inclined downwards in order to save space and when in the withdrawn position the section 20b, which is articulate, is supported partially by these inclined parts of the rails. When the section 20a which is not articulate, is in the withdrawn position it is supported in the rails 22 by a pair of rollers 23 on each side and, after pivoting downwards about the axes 27c of a pair of yokes 27, Fig. 8, each of which serves to mount a pair of the rollers 23 on one side of the section, assumes the vertical position shown in full-lines in Fig. 1. The yokes 27 are connected to a pair of sprocket chains 40, 44 which pass round sprocket wheels such as 46 at each end of the horizontal parts of the rails 22 and which are also connected to a downwards projecting bracket 50 secured to the section 20b whereby the sections 20a, 20b are effectively connected to the upper and lower runs respectively of a pair of endless sprocket chains. This connection ensures that when the operator manually moves the section 20a into intercepting or withdrawn position the section 20b moves in unison therewith. In the intercepting position the edges 26 of the sections abut. Each of the sections 20a, 20b carries a number of pairs of endless belts 58, 59 in superposed relation, the inner runs of which are in contact. Intercepted sheets are stacked on the upper runs of the belts 58 and when the platform 12 has been emptied it is elevated to a position in which it contacts the lower runs of the belts 59. The operator then withdraws the temporary pile support, the intercepted sheets remaining in the same horizontal position in relation to the platform 12 owing to the fact that the belts 59 are frictionally driven by their contact with the platform and the belts 58 are driven by their contact with the belts 59.
Patent GB-650041-A (GB)
Title: Improvements in or relating to antennae or radiators for electromagnetic waves
IPC: H01Q11/08
Filed: 1947-08-07
Abstract: 650,041. Aerials. SPERRY GYROSCOPE CO., Inc. Aug. 7, 1947, No. 21714. Convention date, Sept. 6, 1943. [Class 40 (vii)] An ultra high-frequency antenna comprises two equal lengths of conductor 11, 11<SP>1</SP>, each formed into a helix, the pair of helices being supplied at one end, one in one phase and the other in the reverse phase, from a two-conductor feeder 17, 18 and the helices being arranged in side-by-side formation with their axes parallel. Each helix turns in the same (clockwise or counter clockwise) direction and has the same number of turns. The ends 21, 22 remote from the feeder are terminated in an impedance 23 selected to produce travelling waves in the helices. In order that the radiation from each element of the conductors should be additive in the direction of propagation 24, the pitch P and radius of curvature r of each helix are selected to satisfy the equation Suitable dimensions are Since rotational symmetry exists with respect to the helix axes parallel to the direction of radiation, the radiated wave is circularly polarized.
Patent GB-472351-A (GB)
Title: Improvements in or relating to radio and like apparatus
IPC: H03B5/18
Filed: 1936-08-06
Abstract: 472,351. Electric resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 6, 1936, No. 21718. Convention date, Aug. 29, 1935. [Classes 40 (iii) and 40 (v)] An ultra-high-frequency oscillating or receiving valve is enclosed in a resonator of the tank type having adjustable capacity. The set may be sealed so as to be weatherproof and suitable for use on aircraft and other vehicles. In a Hartley oscillator, Fig. 1, a spherical copper resonator 23 encloses a single valve 17, and adjustable capacity is afforded by two metallic cylinders 3, 5, which are adjustably held in a tube 1 made of glass such as that known under the Registered Trade Mark " Pyrex. " The valve electrodes are connected to metallic bands 7, 9 which provide a capacitive coupling with the cylinders 3, 5. The tank may be cylindrical and the capacitive bands 7, 9 may be of unequal breadth, Fig. 2 (not shown). A pair of push-pull valves may be used, and the leads to the heater may be coaxial cylinders which constitute an adjustably tuned coupling,. Fig. 3 (not shown). The circuit may be of the push-pull Hartley type, Fig. 4 (not shown), the grids and plates of two valves being connected to four bands similar to 7, 9, while the plates are connected by a coil with a centre tapping for connection to the battery. In a modification, Fig. 5, having set-screw-adjustable capacity 303, 305, the grid and plate are connected to capacitive insulated plates 311, 313, situated near the equator E of the resonator, which is a current antinode, for the purpose of improving frequency-stability. Aerials. Aerials 35, 37, Fig. 1, of length equal to a quarter of a wavelength, are attached to the tank resonator at points chosen with reference to the wavelength and to the resulting impedance.
Patent GB-269396-A (GB)
Title: Improvements in parquet flooring material
IPC: E04F15/022
Filed: 1926-09-03
Abstract: 269,396. Munroe, T. B. Sept. 3, 1926. Flooring slabs; compound slabs.- Parquetry slabs consist of a number of wood sections 4 arranged in one or more layers secured together and to a base of resilient fibrous material 5 such as artificial lumber formed from bagasse. The slabs are nailed to a wooden floor or cemented to a concrete floor, and the edges may be flush or offset. The grain of the wooden layers may be crossed, and the base may consist of two layers of fibrous material stapled or cemented together.