baber/WOPTO huggingface dataset:
Patent GB-1414130-A (GB)
Title: Fluid pressure pumps or motors
IPC: F03C1/22
Filed: 1972-08-16
Abstract: 1414130 Reciprocating pumps and motors J C RIDLEY 27 Oct 1972 [17 Nov 1971 16 Aug 1972] 53377/71/ and 38231/72 Heading F1A An oscillating-cylinder pump or motor comprises a plurality of cylinders 21 with pistons 22, the cylinders being pivoted in a casing 11, 12, 13, and the pistons pivoted on a crank-shaft 14, or vice versa. As shown, three pistons engage crankpin 15 and two pistons engage crank-pin 16, the respective sets of cylinders being axially spaced relative to the crank-shaft. Flow of liquid to and from the cylinders is controlled by distributer valves incorporated in the cylinder pivot, Fig.7, or in the end of the cylinder, Fig.8. In Fig.7, the pivot pin supporting the cylinder is formed with coaxial inlet and outlet bores 23, (24), Fig.5 (not shown), extending from opposite ends of the pin and communicating with respective pairs of axial grooves 26, 28 and 25, 27. During cylinder oscillation, a port 35 connected to the cylinder communicates alternately with inlet and outlet grooves 28, 25, pressure balancing being provided by grooves 26, 27. Port 35 is formed either in a sleeve attached to the side of the cylinder, or in the cylinder end wall. In Fig.8, inlet and outlet poppet valves 46 are mounted in the cylinder end wall and are opened alternately against springs 45 by plungers 48 engaging abutments 50 on the casing. The valve seat aperture diameter may be equal to or smaller than that of the bore 41, the latter arrangement providing pressure biasing of the valves to their closed position. Plungers 48 may be adjustably screw threaded on valve stems 47, Fig.9 (not shown).
Patent GB-979520-A (GB)
Title: Improvements in cigarette holders
IPC: A24F13/06
Filed: 1963-09-27
Abstract: 979,520. Cigarette holders. Sept. 27, 1963, No. 38287/63. Heading A2M. A cigarette holder comprises a transparent casing 12, a filter 17 therein, a light coloured absorbent material 18 surrounding the filter, dark coloured indicia means 19 on the absorbing material, such indicia means being obliterated when the absorbent material is saturated with tar retained by the filter, and a mouthpiece 10 connected to one end of the casing. Second indicia means are provided on the absorbent material which becomes visible when the filter is fully saturated with tar. The absorbent material 18 may be thin blotting paper and the second indicia may be marked on the blotting paper with white oil paint. A second filter 15 in a sleeve 14 is connected to the end of the casing remote from the mouthpiece. The mouthpiece 10 and sleeve 14 fit over the ends of the casing 12 and a cigarette receiving metallic ring 16 is fitted into the end of the sleeve 14 remote from the mouthpiece.
Patent GB-839585-A (GB)
Title: Improvements in loudspeakers
Inventor: MEE JOHN NEVILLE
IPC: H04R9/02
Filed: 1957-12-10
Abstract: 839,585. Loud-speakers. PARMEKO Ltd. Dec. 10, 1958 [Dec. 10, 1957], No. 38346/57. Class 40 (4). In a loud-speaker having a horn-loaded high-frequency pressure unit mounted concentrically with respect to a low-frequency unit, the diaphragms 1, 3 of the two units being associated with the voice coils 2 and 4, respectively, in the annular air-gaps 14 and 15 between the ends of the central polepiece 7 and the centrally-apertured end-plates 9 and 10, which are spaced apart by the cylindrical magnet 11, rigid locating elements 16 and 17, each in the form of a dished ring, are interposed between the end portions 7a and 7b of the centre polepiece 7 and the centrally-apertured plates 9 and 10, respectively, to effect centring of the polepiece. Such a ring is shown in cross-section in Fig. 4, and may be pressed out from brass, aluminium or other non-ferrous metal, or moulded in plastic, or fashioned from wood. The ends 7a and 7b are turned down by machining to provide annular shoulders 18 and 19 which limit the inward axial sliding movement of the rings during assembly. The inner faces of the plates 9 and 10 are annularly rebated adjacent the apertures 12 and 13 to form annular shoulders 20 and 21 (at right-angles to shoulders 18 and 19) against which the flanges 16a and 17a contact on assembly. To allow for tolerances in manufacture in the length of the polepiece 7 and the magnet 11, these parts are deliberately dimensioned so as to provide an annular gap 24 between the ring 17 and the shoulder 19, which gap accommodates a compressible ring 25 of, for instance, neoprene. The inner end of the horn 5 is screwed into the end 7b of the centre polepiece 7. Centring of the voice coil 4 is achieved by adjustment of the grub-screws 28, in the lugs 27 provided on the chassis 23, which bear upon the periphery of the plate 10.
Patent GB-1247776-A (GB)
Title: Improvements in pantographs
Inventor: TUSTIN ARNOLD
IPC: B60L5/22
Filed: 1969-07-31
Abstract: 1,247,776. Current collection installations for vehicles. BRITISH RAILWAYS BOARD. 17 July, 1970 [31 July, 1969], No. 38515/69. Addition to 1,221,184. Heading B7L. [Also in Division G3] The current collection installation disclosed in the parent Specification is further provided with a piston and cylinder assembly 11, 10 for movement of the extensible frame 3 towards or away from the wire 2, the cylinder being fed with fluid controlled by the same valving means and slug which regulate assembly 4, 5, 6 and the arrangement being such that the assembly 11, 10 exerts on the frame a force controlling the extensibility thereof which is proportional to the force exerted by the assembly 4, 5, 6. The assembly 11, 10 compensates not only for the reaction forces of the assembly 4, 5, 6 on the frame but also causes movement of the frame, in extension or contracting, which are equal to those of the contact head 7 with respect to wire 2. Springs A, B and dampers D1, D2 in parallel with the assemblies are arranged such that the forces exerted thereby are of such magnitude that the range of accelerations provided by the assemblies falls within predetermined limits. Should the fluid pressure fail, a further piston and cylinder assembly causes the contact head 7 to engage the wire.
Patent GB-901373-A (GB)
Title: Improvements in or relating to explosively actuated tools for driving nails and the like into hard compact materials
IPC: B25C1/12
Filed: 1958-12-01
Abstract: 901,373. Explosive actuated guns for firing nails &c. SOC. D'APPLICATIONS DE RECHERCHES MINIERES ET INDUSTRIELLES S.A. Dec. 1, 1958 [Dec. 4, 1957], No. 38598/58. Class 119. An explosive actuated gun for firing plugs, nails and pins has a barrel 1 movable relative to a breech 6 and slidable in a barrel-carrying body 2 in which it is urged rearwards by elastic means 8 bearing against both the body and the barrel. The barrel 1 is thin and the body 2 serves to reinforce its rear end. The means 8 is a rubber sleeve and bears on rings 7 and 9 abutting the barrel and body respectively. A breech-closing member 16 is retained slidably in the breech 6 against a spring 17 and has forward forks 15 connected by a pivot-pin 14 to the body 2. The assembly 1- 2- 3- 4- 16 can be tilted about the pivot 14 to position X-X for loading. On realignment of the breech and barrel after loading, the cartridge case D is compressed into the barrel-chamber by pressure of the spring 17 against the member 16 and of the sleeve 8 against the barrel. This latter pressure also serves to eject the cartridge when the gun is pivoted open again after firing. To fire the gun the barrel assembly must be applied to the work-surface and pushed back until the cartridge D is sufficiently near the firing pin 21 to be struck. Before this is possible the sleeve 4 must be turned so that the pin-end 14 comes out of a circumferential slot in the breech 6 and lies in a longitudinal one 20 (Fig. 6, not shown), to allow the assembly 1- 2- 3- 14- 15- 16 to slide back relative to 5- 6 and to align a firing-hole 30 with the eccentric firing pin 21. A splinter guard 12 must also be inserted fully home within a split ring 10 inside the sleeve 3 to open it out against a surrounding elastic sleeve 11, so as to disengage lugs on the ring 10 from a groove 1a around the outside of the barrel. Firing mechanism.-The firing-pin 21 is on a bronze skirt 22 slidable in the breech 6 against a spring 23 and having an armature 25 fixed internally. A permanent magnet 26 connects with a trigger 28 through a sliding rod 27. A spring 29 urges the magnet forward. On pulling the trigger the magnet draws the striker-armature 25 back until the force due to compression of the spring 23 exceeds the magnetic force, when the armature flys forward and causes the striker to fire the cartridge. Specifications 901,374 and 901,375 are referred to.
Patent GB-1155390-A (GB)
Title: Stereoscopic Telescope for the Remote Viewing of Objects placed in a Sealed Examination Enclosure
Inventor: BREBANT CHARLES
IPC: G21F7/02
Filed: 1966-08-30
Abstract: 1,155,390. Viewing equipment for radioactive environment. COMMISSARIAT A L'ENERGIE ATOMIQUE. 30 Aug., 1966 [13 Sept., 1965], No. 38643/66. Heading B4Q. [Also in Division G2] A stereoscopic telescope, for viewing objects placed in a sealed chamber containing radioactive elements comprises two identical optical systems each having a staggered optical path 14 through a mass of radiation-absorbing material, and is characterized in that each optical system includes a prism 10 for receiving light from an object within the chamber, the prism 10 being movable within a recess in the radiation-absorbing material so as to vary its conveyance with the prism of the other optical system, and also includes a prism 40 for erecting the image formed, a binocular head 1 of the periscope carrying the focusing controls of the two optical systems. The optical systems may be housed in separate tubes, 4, 4a. As shown in Fig. 4, the prism 10 is pivotally mounted at 24 on a knuckle joint 26 having a through bore for the passage of light. The joint 26 and hence the prism 10 is rotatable about the longitudinal axis of the tube 4 by means of an externally teethed annulus 60 on the bearing 26 which engages a pinion 62 keyed to a rotatable rod 34. The rod 34 is also movable longitudinally of the tube 4 and carries at its end adjacent the prism 10 a push rod 64 which forces the prism outwards against the action of a spring 66 on downward movement of the rod 34. In a modification this second movement of the prism 10 is effected by rotation of the bearing 26 about an axis at right angles to the axis of the tube 4.
Patent GB-990637-A (GB)
Title: Manufacturing polyurethanes
Inventor: TWITCHETT HARRY JAMES
IPC: C08G18/18
Filed: 1961-10-31
Abstract: Polyurethanes are prepared by reacting hydroxyl group-containing polymers with organic polyisocyanates in the presence of a catalyst comprising a tertiary amine of the formula <FORM:0990637/C3/1> in which R is a radical of the formula <FORM:0990637/C3/2> or <FORM:0990637/C3/3> and the substituents R1 which may be the same or different are hydrogen, methyl or ethyl.  The tertiary amines of the above formula specified are N,N - dimethyl - 2 - phenylethylamine, N,N - dimethyl - 2 - p - tolylethylamine and N,N - dimethyl - 2 - cyclohexylethylamine and mixtures thereof.  The hydroxyl group containing polymers may be polyethers, polyesters and polyesteramides or mixtures thereof and many starting materials for the preparation of such polymers are specified. Polyisocyanates specified are hexamethylene di-isocyanate, 2,4-tolylene and 2,6-tolylene di-isocyanates, di-phenyl -methane-4,41-di-isocyanate, m- and p-phenylene di-isocyanates, chlorophenylene-2,4-di-isocyanate, dicyclohexylmethane di-isocyanate, 2,4,6 - tri - isocyanatotoluene, 2,4,41-tri -isocyanatodiphenyl ether and polymers of tolylene-2,4 and -2,6-di-isocyanates.  Mixtures of polyisocyanates may also be used, e.g. the phosgenated mixed polyamine reaction products of formaldehyde and aromatic amines such as aniline and o-toluidine. Other ingredients which may be present include catalysts, e.g. dimethylcyclohexylamine, triethylamine, dimethylbenzylamine, N - methylmorpholine, tetramethylguanidine, triethylenediamine, 4-dimethylaminopyridine, potassium carbonate, potassium acetate, potassium naphthenate, basic lead acetate, lead carboxylates, zinc or lead dialkyldithiophosphates, transition metal acetylacetonates, di - n - butyltin dilaurate and stannous octoate; nonionic surface-active agents, salts of sulphuric acid derivatives of high molecular weight organic compounds, silicone oils such as alkyland aryl-polysiloxanes and copolymers thereof with alkylene oxides; foam stabilizing agents such as ethyl cellulose; low molecular weight polyols such as trimethylolpropane; colouring matters; plasticizers such as dialkyl phthalates; fireproofing agents such as tri-b -chloroethyl phosphate and antimony compounds; and blowing agents such as volatile fluoroalkanes and water.  Examples are given of the production of polyurethane foams by the process of the invention.  Specifications 990,631 and 990,632 are referred to.
Patent GB-1035269-A (GB)
Title: A lighting fitting
Inventor: HART DEREK JAMES
IPC: F21V17/16
Filed: 1964-09-24
Abstract: 1,035,269. Electric lighting fittings. THORN ELECTRICAL INDUSTRIES Ltd. Sept. 24, 1964, No. 39035/64. Heading F4R. A fitting for holding a tubular electric lamp comprises a base 15 carrying two spaced sockets 11 for the ends of the lamp 10 and a cover 13 of sheet material from which two lugs 16 have been cut and bent, the lugs engaging fastening means when the cover is in place and the sockets passing through the holes in the cover formed by the lugs. The sockets 11 are bolted to resilient brackets 26 secured to the base 15 and the lugs have holes which engage over the heads of the bolts 25 when the cover is in position. The bolts may also carry contact springs 27 which engage the end caps of the lamp to earth this.
Patent GB-1533019-A (GB)
Title: Monomethylol ether diols
IPC: C07C239/00
Filed: 1976-09-21
Abstract: 1533019 Auto-crosslinkable polyurethanes BAYER AG 21 Sept 1976 [24 Sept 1975 19 Nov 1975] 39059/76 Heading C3R [Also in Division C2] A solution of an autocrosslinkable polyurethane is produced by reacting a dihydroxycompound having a molecular weight of 600 to 6000, in the presence of a semicarbazide derivative of the formula wherein R is a C 1-12  alkylene group and R<SP>1</SP> is an alkyl group, in a quantity of from 0À1 to 10% by weight, based on the solids content, and optionally in the presence of a further low molecular weight diol, with an excess or organic di-isocyanate, followed by chain-extension in a polyurethane solvent to form a prepolymer and reacting this with an active hydrogen-containing compound having a molecular weight of from 32 to 400. Examples illustrate the production of autocrosslinkable polyurethane solutions from (1) adipic acid | 1,6-hexane diol | 2,2- dimethyl-1,3-propane diol copolyester and diphenyl methane - 4,4<SP>1</SP> - di-isocyanate, (2) dihydroxy polytetramethylene ether and diphenyl methane - 4,41 - di-isocyanate, (3) adipic acid-ethylene glycol | 1,4 - butane diol and diphenyl methane - 4,4<SP>1</SP> - di-isocyanate, and 1,6-hexane diol polycarbonate and isophorone di-isocyanate.
Patent GB-1107516-A (GB)
Title: Apparatus for processing cinematograph film
IPC: G03D3/13
Filed: 1966-09-01
Abstract: 1,107,516. Photographic processing apparatus. D.A. PUIG. Sept. 1, 1966 [April 16, 1966], No.39167/66. Heading G2A. A film guide or roller, over which a film passes during processing, within a processing tank is raised and lowered to facilitate loading by mounting it on a vertical rack engaged by a rotatable pinion. The pinion may be driven by a reversible motor. A nozzle for spraying the emerging film may be mounted above the roller on a horizontal rack engaged by a rotatable pinion to move the nozzle backwards and forwards. The two pinions may be coupled by a cam switch driven by the motor such that the nozzle is moved aside as the rack is lifted and then moved back as the rack is lowered.
Patent GB-391680-A (GB)
Abstract: 391,680. Cylinders. CURTIS, C. G. and NEWTON, E. R., 2, Rector Street, New York, U.S.A. Sept. 24, 1932, No. 26583. Convention date, Oct. 1, 1931. Drawings to Specification. [Class 7 (ii).] In two-stroke engine cylinders having opposed rows of piston-controlled scavenging and exhaust ports, the scavenging ports are duplicated, the extreme ports of each row being directed back to the inlet side of the cylinder, as described in Specification 294,281, [Class 7 (ii), Internal-combustion engines, Arrangement &c. of], and their size and the energy of the flow through them being arranged so that the inflowing air is confined to the inlet side of the cylinder. The extreme ports may be inclined less to a transverse plane than the intermediate ports, the inclination of which progressively increases, as described in Specification 321,514, [Class 7 (ii), Internal-combustion engines, Arrangement &c, of]. In a doubleacting cylinder three rows of ports are provided the middle row acting for both ends of the cylinder.
Patent GB-1116526-A (GB)
Title: Knitting machines
IPC: D04B15/32
Filed: 1965-09-14
Abstract: In a flat or circular independent needle machine a resilient member provided below the stitch cam is deformed by the needles as they pass below said cam so that the butts are forced into contact with the cam.  In one embodiment the ends of the needles deform a spring, or synthetic elastic member encircling the needle cylinder.  A similar arrangement may be provided on a needle dial. In a further embodiment a rubber wheel, or flat spring bridges a gap in a landing cam below the stitch cam.
Patent GB-999697-A (GB)
Title: Improvements in or relating to stockings and methods of and machines for knitting the same
IPC: D04B1/26
Filed: 1963-10-04
Abstract: 999,697. Knitting-machines. SCOTT & WILLIAMS Inc. Oct. 4, 1963 [Oct.23, 1962], No. 39279/63. Headings D1C and D1K. A circular knit stocking has a rotary knit leg portion a reciprocatory knit heel portion and a rotary knit foot portion, all of which are knit on at least two feeds and have continuous knit junctions between adjacent poritions; the heel portion has successively increasing numbers of wales in its causes followed by successively decreasing numbers of wales from its junction with the leg portion forward to junction with the foot portion. The leg portion of the stocking is formed by two feed rotary knitting and during the formation of the final course of this knitting all the needles except the short butt needles are raised by a radially movable cam 58 to the inactive level. On the first reverse stroke at the formation of the heel two needles are dropped by the picker 72 to join the short butt needles and the first short butt needle is raised by the picker 70 to the inactive level. Similarly on the forward stroke two needles are picked down by the picker 72 and one is picked up by the picker 68. Upward picking tubes place of the first needle of the active group and the needles picked down join the trailing end of the active group from the inactive group. When sufficient wales have been added to widen the fabric the picker 72 is removed and upward picking only takes place. When the heel pouch has been formed the cam 80 drops the inactive needles to the active level and rotary knitting tubes place on all needles. Specifications 628,526, 704,843 and 863,880 are referred to.
Patent GB-831027-A (GB)
Title: Articulating axle for industrial truck
Inventor: QUAYLE GEORGE F
IPC: B60G11/22
Filed: 1957-12-19
Abstract: 831,027. Axle mountings; rubber springs. YALE & TOWNE MANUFACTURING CO. Dec. 19, 1957, No. 39447/57. Classes 108(2) and 108(3) The axle 10 of an industrial trackis connected by four joints 12, 12a, 13, 13a to main frame members 18, 19. Each joint comprises a pin A mounted in a respective socket of the axle 10 and held against rotation and outward axial movement by a pin 16. A pair of circular shear-sandwich rubber spring units 21 act between the pin A and the respective side faces of the frame member 18 or 19. The rubber disc of each unit 21 is eccentrically disposed with reference to one of the outer load applying plates 24 so that under normal load the pin A is coaxial with the plate 24. In a modification (Fig. 6, not shown) the common axis of the joints 12, 12a lies above instead of to one side of, the axis of the joints 13, 13a.
Patent GB-1153308-A (GB)
Title: Polyurethane Catalysis
IPC: C08G18/20
Filed: 1966-09-06
Abstract: 1,153,308. N-Hydroxyalkyl substituted imidazoles. AIR PRODUCTS & CHEMICALS Inc. 6 Sept., 1966 [7 Sept., 1965], No. 39752/66. Heading C2C. [Also in Division C3] N-hydroxyalkyl substituted imidazoles are prepared by reacting an epoxide containing compound with an imidazole R 1  is H, a C 1-16  alkyl radical, a C 6-10  aryl radical or a C 7-9  phenoxyalkyl radical. R 2 , R 3  and R 4  are H, C 1-17  alkyl or C 6-10  aryl radicals but only one of them may be aryl. Examples relate to the preparation of: (I) N-hydroxypropyl - 2 - ethyl - 4 - methyl imidazole by reaction of propylene oxide with 2-ethyl-4- methyl imidazole in toluene at 80 C.; (II) N- hydroxy - propyl - 2 - methyl imidazole; (III) N - hydroxyethylimidazole; (IV) N - hydroxyoctyl - 2 - methyl imidazole; (V) N(2 - phenylhydroxyethyl) - 2 - methyl imidazole; and (VI) to an adduct of ethylene oxide (14 moles) with imidazole (1 mole).
Patent GB-1399939-A (GB)
Title: Tools for placing threaded inserts
IPC: B21J15/04
Filed: 1972-08-25
Abstract: 1399939 Riveting AERPAT AG 25 Aug 1972 [30 Aug 1971] 39825/72 Heading B3U A manually operated tool for setting a threaded insert 61, 62 comprises a hollow body 11, an anvil 34 at one end of the body 11 for engaging an insert to be set, a rotatable and reciprocable shaft 24 positioned within the bore of the body 11 and provided with means 28 for threadedly engaging the insert and a cam 48 which bears against bearing means 46 carried by a member 17 and which is rotatable by a-handle 52 about a transverse axis 47 fixed to the shaft 24 to cause relative axial movement between the shaft 24 and body 11. The anvil 34 is releasably mounted on the tool body 11 by a spring ball detent 36. Extending through a bore of the anvil 34 is a screw 28 which carries a washer 32 and a square nut 31 which are respectively accommodated within a U-shaped slot and a square section aperture at one end of the shaft 24 so as to be releasably connected therewith. The other end of the shaft 24 is bifurcated to provide two side portions (41, 42) (Figs. 3 and 4, not shown) each having a slot 44, through which passes a pin 45 mounting a roller 46 and carried by a sleeve 17 which is releasably retained by a spring clip 19 within the bore of the body 11 against a steel washer 23. The roller 46 is urged by springs into contact with a cam 48 which is integral with a handle 52 and which is mounted by a pin 47 on the end of the shaft 24. In operation, the screw 28 is engaged with a tapered nut portion 61 of the insert to be set in a sheet 64 and the handle 52 moved about the pivot pin 47 away from a handle 51 through an arc of 180 degrees to cause the shaft 24 to be retracted and the nut portion 61 to be pulled into a cylindrical portion 62 of the insert. Alternatively, the cam handle 52 is rotated about the pin 47 until it is aligned with the bore of the body 11, rotated through 180 degrees about its own longitudinal axis and then moved back towards the handle 51 about the pin 47 (Figs. 5-7, not shown). Spare screws 28 may be accommodated in threaded holes (65) (Fig. 1, not shown) in the handle 51.