baber/WOPTO huggingface dataset:
Patent GB-1142172-A (GB)
Title: Improvements in or relating to impact devices
Inventor: LEAVER JOHN PHILIP
IPC: F15B15/14
Filed: 1966-06-09
Abstract: 1,142,172. Percussive drills. P. SNOWDEN. 9 June, 1967 [9 June, 1966], No. 25680/66. Heading B4C. [Also in Division F1] In an impact or vibratory device such as a rock drill, road hammer or pile driver wherein a piston 2 is reciprocated in seals 3, 4, 5 by hydraulic pressure pulses supplied to a chamber 7 to act on at least one face 6 of the piston 2 against the spring action of liquid acting on at least one opposed face 9 of the piston disposed in a liquid filled chamber 11, leakage from the chamber 11 is replenished from the chamber 7 through a by-pass 12 containing a non-return valve 13. Leakage from the chamber 11 which passes the seal 5, resiliently supported in a cushion 14, enters a drain chamber 15 connected to a reservoir. If the piston (18) has a plurality of pressure faces (24-26), Fig. 2 (not shown), the faces acted upon by the pulsating supply may be disposed in separate chambers or a common chamber (28), and the faces acted upon by spring liquid may also be disposed in separate chambers (30, 31) or a common chamber, and each chamber is provided with a separate bypass. The piston (18) has a shank (19g), and both are provided with an axial hole through which slidably passes a pipe (36) having a hole (37) through which flushing fluid flows to the percussion bit.
Patent GB-839296-A (GB)
Title: Improvements in or relating to bending for folding or edging machines
IPC: B21D5/04
Filed: 1958-08-11
Abstract: 839,296. Angular bending. REINHARDT & ADAM G.m.b.H. MASCHINEN - UND - APPARATEBAU. Aug. 11, 1958 [Sept. 13, 1957], No. 25687/58. Class 83 (4). Mechanism for setting the stop rail, against which work to be bent is positioned, in bending machines is characterized in that the stop rail can be moved by power means in succession from a basic position into the several working positions required for the performance of a succession of bending operations on one workpiece, said several working positions being determined by stop means which limit the stroke of the stop rail reciprocation, and which can be displaced and located on a programming device adapted to be indexed in synchronism with the rhythm of sequential operations in such manner that after each operation the next following stop means is moved into operative position. A metal sheet to be bent is inserted into the machine until it abuts the edge of a stop plate 24 or a supplementary rail 26 mounted thereon. An upper beam 19 then descends to hold the sheet on a lower beam 18 and a bending beam 21 swings to bend up the projecting part of the sheet. The shaft 20 of said beam 21 carries a series of adjustable cam discs 62, Fig. 8, with cam projections 62a and when the first cam 62a engages its associated switch 71 the bending beam 21 is stopped and then returned to its initial position. At the same time an hydraulic cylinder 30 retracts the stop plate 24 and then advances it. During this to-and-fro action a solenoid 45 has been energized to reciprocate a push rod 50 once; this, through rack and ratchet means indexes a drum 41 so that the next stop 44, adjustably mounted in one of eight longitudinal grooves 41a spaced around the drum 41, intercepts a flange 24b on the plate 24 during its ensuing forward motion. During the interval, determined by a time relay, between the first and a second bending operation, the work is again placed against the stop plate 24 now in its new position and bending is then effected, the angle of this bend being determined by the position of the cam projection 62a on the second cam disc 62. The cycle is repeated until all the eight required bending operations have been performed.
Patent GB-368239-A (GB)
Title: An improved jug for electrically heating liquids
IPC: A47J27/21
Filed: 1930-08-28
Abstract: 368,239. Plug couplings. ORBIT ELECTRIC CO., Ltd., 185, Elizabeth Street, Sydney, Australia. Aug. 28, 1930, No. 25721. Convention date, Aug. 29, 1929. Void [Published under Sect. 91 of the Acts]. [Class 38 (i).] The supply socket 17 for an electrically heated jug is riveted to a lug 14 on the lid 11 and engages contact pins 8 mounted on an instepped portion 7 at the top of the jug.
Patent GB-735002-A (GB)
Title: Improvements relating to the control of electrically operated winding or like mechanisms
Inventor: PETCH THOMAS HAYES
IPC: H02P3/24
Filed: 1953-09-17
Abstract: 735,002. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 30, 1954 [Sept. 17, 1953], No. 25733/53. Addition to 666,561. Class 38 (3). Relates to a system for braking an induction motor IM by supplying its stator winding with direct-current, means being provided for regulating the direct-current excitation in accordance with rotor frequency and speed so as to obtain a linear relation between the speed and braking torque. A voltage proportional to the frequency is obtained through contactor D2 and applied through saturable reactor SR and rectifier B1 to the field winding F1 of an amplidyne providing the direct-current excitation, a component dependent upon rotor voltage being applied to field winding F2 through resistor R2 and rectifier B2, as described in Specification 666,561. A potentiometer VR having taps T1-T6 is added to the circuit so that the value of the control excitation supplied to field windings Fl and F2 can be selected. By these means the slope of the torque-speed characteristic may be altered when controller C is moved to short-circuit pre-determined portions of the potentiometer VR.
Patent GB-744709-A (GB)
Title: Improvements in or relating to cleansing tanks
Inventor: PAGE ERIC STANLEY
IPC: C23G3/00
Filed: 1953-09-17
Abstract: 744,709. Cleansing tanks. MANN EGERTON & CO., Ltd. Sept. 2, 1954 [Sept. 17, 1953], No. 25759/53. Class 82(2). An apparatus for cleaning oily or dirty articles, particularly motor vehicle parts, employs an agitating rotor consisting of a dished element 15 with scoops 25 facing the direction of rotation, partitions 18 formed of a bent piece of sheet metal, and a closure plate or cover member 21. Apertures pierced in the latter, one to each compartment, allow the liquid to be delivered upwardly to the perforated basket 2 in the cleansing tank 1. In order that stubborn dirt &c. may be removed a brush may be fitted on the rotor shaft 9 and driven by a key 31. A shroud is described to modify the upward flow of the cleansing liquid leaving the rotor to suit the brushing operation.
Patent GB-1048795-A (GB)
Title: Improvements in or relating to push button equipment
Inventor: BEALE DAVID LIONEL
IPC: H01H13/14
Filed: 1965-06-18
Abstract: 1,048,795. Hand actuating devices for switches; indicators for switches; switch covers. STANDARD TELEPHONES & CABLES Ltd. June 18, 1965, No. 25872/65. Heading H2B. A push-button assembly for operating a switch enclosed within a protective cover 11 through a hole in the cover comprises a body member 4 adapted to co-operate with the switch and a cap 1 arranged to fit over member 4, cap 1 and member 4 having interlocking means to hold them in contact and projections 7, 8 to retain the assembly within the hole in the cover. As shown, the interlocking means comprise projections 5 and holes 3 but may comprise a screwthread. Cap 1 is of transparent material and an indicator card may be placed in space 9.
Patent GB-1007175-A (GB)
Title: Alloys
IPC: C22C38/12
Filed: 1962-07-05
Abstract: A steel has the following composition: <TABS:1007175/C6-C7/1> the balance, apart from impurities, being iron. In a preferred method of making the steel of this invention the Nb and V are injected into the free casting jet during casting the steel into chills or moulds by means of a carrier gas such as N2, A or He, the metal preferably being in the form of solid particles having a maximum grain size of 3 mm.
Patent GB-490879-A (GB)
Title: Improvements in or relating to electrostatic apparatus for relays and the like
IPC: H01H59/00
Filed: 1937-09-27
Abstract: 490,879. Electrostatic and electromagnetic switches. LEWIN. E. Sept. 27, 1937, No. 26110. [Class 38 (v)] An electrostatic system for operating switches or relays comprises a stationary condenser electrode a, a movable electrode b, insulation between the electrodes, and a centrally disposed projection or elevation on at least one of the two opposed electrode contact surfaces. The projection may be provided by forming one of the electrodes with a spherically shaped convex surface, or the electrode may be cone-shaped or have a pointed projection. The electrodes are connected to opposite poles of an electric circuit and separate by spring action or gravity when the potential between. them is less than a predetermined value. A resilient lever f<1> connected to the armature o of an electromagnet p is provided for returning the movable electrode into engagement with the stationary electrode. One of the electrodes is provided with an insulating coating, which is interrupted by fine pores or cracks. In the relay shown, a projection e at the end of the arm carrying the movable electrode b engages a contact spring -r<2> and moves it into engagement with a fixed contact when the movable electrode drops away from the fixed electrode. The relay may be mounted in an evacuated container g, which may be elastically suspended, as shown in Fig. 4, by means of a spring i and wires k, one of which is adjustable by means of a set sleeve k<1>.
Patent GB-1056273-A (GB)
Title: Improvements relating to separators for the plates of electric storage batteries
Inventor: BUSHROD CHARLES JAMES
IPC: H01M50/457
Filed: 1962-07-09
Abstract: 1,056,273. Laminates. CHLORIDE BATTERIES Ltd. Oct. 8, 1963 [July 9, 1962], No.26188/62. Heading B5N. A separator for the plates of electric storage batteries comprises a layer of diatomaceous earth sandwiched between and bonded to two layers of a non-woven felt-like fabric made from fibres of an acid-resisting thermoplastic resin. Bonding agents, e.g. polystyrene, polyvinyl chloride or butadiene-styrene copolymer latexes may be incorporated in the diatomaceous earth. Specified fabrics are polyvinyl chloride, polyethylene, polypropylene, polyacrylates or polyesters, e.g. polyethylene terephthalate.
Patent GB-279067-A (GB)
Title: Improvements in or relating to apparatus for the transmission of pictures
IPC: H04N3/08
Filed: 1927-10-04
Abstract: 279,067. Westinghouse Electric & Manufacturing Co., (Assignees of Kintner, S.M.). Oct. 15, 1926, [Convention date]. Television apparatus.-In television apparatus of the kind in which the analysis or synthesis of the picture is effected by means of a rotating disc carrying mirrors arranged in a ring or a spiral the mirrors are formed by grinding or stamping a number of concave reflectors 3 in the revolving disc 5. At the transmitting station, for instance each of the reflectors 3 projects a real image 33 of the object 2 or of an image 32 thereof formed by an optical system 1. A lateral movement is imparted to the image 33 by the motion of the reflectors 3, and a vertical movement is imparted to it by a rotating annular refracting prism 15<1>, 15<11>, of varying angle, which rotates at a lower speed than the disc 5. Thus the image 33 is traversed in front of a light-sensitive cell 21, which controls the outgoing signals. The arrangements at the receiving station are similar, light passing from a variable source at 21 to a screen at 2. The reflectors 3 may be stamped or ground on a stainless steel disc, the remainder of which is dulled with platinum black, or the disc may be formed of dull metal and the reflectors plated with chromium or the like. The angle of the prism varies gradually round the circumference of the disc 14, so that it tapers outwards at 15<1> and inwards at 15"; there is one discontinuity in the prism, the widest outward taper being adjacent to the widest inward taper.
Patent GB-1121282-A (GB)
Title: Process for stabilizing autocatalytic metal plating solutions
Inventor: SCHNEBLE FREDERICK W
IPC: C23C18/52
Filed: 1965-06-22
Abstract: In the electroless deposition of e.g. Cu, Ni, Co, Cd, and Sn, a cyanide compound is added in an amount less than 500 milligrams/1. The substrate may be paper, glass, ceramic, synthetic resins or a metal, e.g. Ni, Co, Fe, steel, Pd, Pt, Au, Cu, brass, Mn, Cr, W, Ti, Sn, Ag or Mo.  An oxidizing agent, e.g. borohydrides, amine boranes, hydrazines, hypophosphites, hydrosulphites, hydroxyl amines, and formaldehyde may be added.  A sequestering agent e.g. ethylene diamine, diethylene triamine, triethylene tetramine, E.D.T.A., citric and tartaric acid, ammonia, Rochelle salts, nitrilo triacetic acid, gluconic acid and gluconates, and triethanolamine, and a surfactant e.g. organic phosphate esters or oxyethylated sodium salts may also be added.  Noncatalytic surfaces may be sensitized with stannous chloride and a precious metal salt.
Patent GB-605340-A (GB)
Title: Improvements in apparatus for the production of helically grooved hoses or tubes
IPC: B21C37/12
Filed: 1945-10-09
Abstract: 605,340. Flexible tubes. KOPEX-MASCHINEN AKT.-GES. Oct. 9, 1945, No. 26288. Convention date, Oct. 10, 1944. [Class 99 (ii)] In a machine for making flexible tubes by helically winding strip material and producing corrugations in the formed tube by internal and external screw-threaded rotating grooving- members I, 2, the tube is compressed axially after the initial grooving operation by additional grooving members 5, 6 having screw-threads of smaller pitch than the members 1, 2. Either the internal or external additional grooving member may be omitted. A series of additional members with threads of successively decreasing pitch may be provided. The initial and additional grooving members may be rotated at different speeds. Alternatively, the initial and additional members may be integral, the threads of different pitch being separated by unthreaded portions.
Patent GB-224530-A (GB)
Title: Improvements in hydraulic "pot" presses
IPC: B30B9/04
Filed: 1924-11-04
Abstract: 224,530. Lehmann, J. M. [Firm of]. Nov. 6, 1923, [Convention date]. Fats and fatty oils, extracting by pressure. - Hydraulic "pot" presses for extracting cocoa butter &c. are provided with means for closing or opening all the pots simultaneously, such means not preventing the squeezing up of the column during pressing. In the press shown, pots C. C<2> are mounted in blocks c. c<2> slidable on rods 1 and on shafts 5 rotatable by a hand-wheel Hand gearing 9, 8, 7, 6. The shafts 5 are connected by keys and feathers with sleeves 2, 2<1> which are mounted in the closure plates B', B<2> and press-head D, and which are threaded into nuts 3 resiliently but non-rotatably mounted in the blocks c. c<2>. Rotation of the shafts 5 therefore causes the pots C. C<2> to approach or recede from the. plates B. B<2> and press-head D. When the ram A rises, the plates B, B<2> and pots C. C<2> slide up the rods 1 and shafts 5. In a modification the pots and closure members are drawn together by spiral springs screwed on to threaded pins on the blocks C. C<2> and the plates B, B<1> and head D so that their tension is adjustable. Separation is effected by vertical rods which pass through the blocks and closure members and are stepped so that on depression of the rods by a transverse bar with cam surfaces the annular shoulders engage and force down the slide blocks.
Patent GB-1123727-A (GB)
Title: Polyurethanes and a method of making the same
IPC: C08G18/50
Filed: 1966-06-13
Abstract: Polyurethanes are prepared by reacting one or more organic polyisocyanates with a mixture of polyols comprising (1) a novolac polyol of the formula <FORM:1123727/C3/1> wherein R is hydrogen or methyl, q is 2, 3 or 4, p is an integer from 1 to 15 and x is a value from 0.5 to 10; and (2) an amine polyol of the formula <FORM:1123727/C3/2> where R is an alkylene radical having 2 to 6 carbon atoms, n is 2, 3 or 4, and m is 1, 2, 3 or 4, the proportion of novolac polyol corresponding to at least 60% of the OH groups and the proportion of amine polyol corresponding to not more than 40% of the total OH groups in the polyol reactants.  Catalysts may be included in the reaction mixture and the polyurethanes may be foamed by including in the reaction mixture an emulsifying agent, foaming agent and if desired a cell regulating agent.  Polymethylene polyphenylisocyanate and tolylene diisocyanate are the exemplified polyisocyanates but numerous others are mentioned.  Preferred novolac polyols contain 3 to 6 OH groups in the molecule and in the preferred amine polyols the alkylene radical R contains 2 to 4 carbon atoms. If desired other polyether polyols may be used in amounts up to 25% by weight of the total weight of the novolac and amine polyols. Water and/or aliphatic or halogenated aliphatic hydrocarbons boiling below 110 DEG  C. may be used as foaming agents. Tertiary amines and esters of tin or tin salts may be used as catalysts. Suitable surface active agents or emulsifiers are polypropylene glycols of M.W. 2000 to 8000 and liquid silicone-glycol copolymers.
Patent GB-697940-A (GB)
Title: Manufacture of polymethine dyestuffs and of photographic silver halide emulsions sensitized therewith
IPC: C09B23/01
Filed: 1951-11-09
Abstract: Dyes are prepared by condensing a derivative of pyrrolidine or pyrroline of the general formula <FORM:0697940/IV (c)/1> or <FORM:0697940/IV (c)/2> wherein R1 is H or alkyl, R2 and R3 are H, alkyl, or aryl, Y is CHO or CH = NC6H5, and X is an inorganic acid radical, with an aromatic diamine in the presence of an acidic condensing agent (e.g. concentrated hydrochloric acid), preferably at boiling temperature.  In example 1, an aqueous hydrochloric acid solution of p-phenylenediamine dihydrochloride and N - ethyl 2 -(o  - anilinovinyl) - pyrrolidine is refluxed and poured into aqueous potassium iodide solution. The same dye may be prepared by refluxing together an aqueous hydrochloric acid solution of p-phenylenediamine dihydrochloride and N-ethyl-2-(o -anilinovinyl)-pyrroline iodide.  In examples 2 to 14, dyes are similarly prepared from p-phenylenediamine and (2) N-ethyl-4-methylpyrrolidine-2-methylene - o  - aldehyde; (3) N - ethyl - 4 - phenylpyrrolidine - 2 - methylene - o  - aldehyde; and (4) N - ethyl - 3 - methylpyrrolidine - 2 - methylene - o  - aldehyde from 2 : 5 - diamino - 1 - methoxy - benzene and (5) N - ethyl - 3 - methylpyrrolidine - 2 - methylene - o  - aldehyde; from benzidine dihydrochloride and (6) N - ethyl - 3 - methylpyrrolidine - 2 - methylene - o  - aldehyde; from 2 : 6 - diamino - naphthalene dihydrochloride and (7) N-ethyl-3-methylpyrrolidine - 2 - methylene - o  - aldehyde; from 2 : 5 diaminobenzoic acid dihydrochloride and (8) N - ethylpyrrolidine - 2 - methylene - o  - aldehyde; (9) N - ethyl - 3 - methylpyrrolidine - 2 - methylene - o  - aldehyde; and (10) N - methyl - 4 - phenyl - pyrrolidine - 2 - methylene - o  - aldehyde; from 4 : 41 - diaminodiphenyl - 3 : 31 - dicarboxylic acid and (11) N-ethylpyrrolidine-2-methylene - o  - aldehyde; and (12) N - ethyl - 3 - methylpyrrolidine - 2 - methylene - o  - aldehyde; from ethyl 2 : 5 - diaminobenzoate dihydrochloride and (13) N - ethylpyrrolidine - 2 - methylene - o  - aldehyde; and from 1 : 4-diaminobenzene - 2 - sulphonic acid and (14) N - ethylpyrrolidine - 2 - methylene - o  - aldehyde.  In example 15, the dye of example 1 is heated with ethylene chlorhydrin to obtain the dye chloride.  N - Ethyl - (2 - o - anilinovinyl) - pyrrolidine iodide is obtained by condensing 2-methyl-pyrrolidine ethiodide with diphenylformamidine in glacial acetic acid and acetic anhydride; boiling with aqueous alcoholic caustic potash solution gives N-ethylpyrrolidine-2-methylene-o -aldehyde; and treatment at room temperature with aqueous caustic potash solution, in the presence of benzene, gives N-ethyl-(2-phenyl-iminoethylidene) pyrrolidine.
Patent GB-1049555-A (GB)
Title: Stranded rope comprising endless, synthetic plastic threads
Inventor: HARTMANN KARL
IPC: D07B1/02
Filed: 1965-06-22
Abstract: A rope formed from strands of endless synthetic plastic threads is provided with a brush-like fluffy surface by inserting in the surface of the strands fibre tows having a count ratio of 30 to 45% relative to the adjacent surface threads of the strand, and being either of twisted formation with a degree of twisting resulting from a twisting constant of Nm to 2 Nm, wherein Nm represents the metric yarn count number of the fibre tow; or a braided formation with a braiding angle of 30 to 45 degrees.  It is stated that in use the elementary filaments of the fibre tows split off and form a brush-like irregular or fluffy fleece that is uniformly distributed over the entire rope surface to improve resistance to sliding and prevent premature wear of the synthetic plastic threads.
Patent GB-729993-A (GB)
Title: Improvements in releasable fastening devices
IPC: B62J21/00
Filed: 1953-09-25
Abstract: 729,993. Strap fastenings. LEWIS, J. J. Sept. 25, 1953, No. 26403/53. Class 44. A device for preventing a lady's skirt or frock being blown about while riding a cycle comprises a band clip 1 for attachment to the cycle frame, an elastic cord H attached to the band clip 1 and a spring clip M at the free end of the elastic cord. A second band clip may be attached to the cycle frame to which the spring clip may be connected when it is not in use by the cycle-rider. The band clips are identical and each comprises a strip of rubber composition with an aperture B at one end and a waisted stud A at the other end which engages the aperture B when the clip is round the cycle tube Z. A transverse bore E is provided in the stud A. The elastic cord H is of rubber with a braided covering and it is connected to the band clip 1 by a split ring D which is engaged in the bore E of band clip 1, a washer F being interposed between a thickened end G of the band clip and the ring D. The ring D is connected to the cord H by a fitting having a split sleeve J with teeth L which bite into the braided covering. The spring clip M has two arms N, U connected by a pivot pin V which is encircled by a coiled spring which keeps jaws on the arms in contact. The jaws are covered by rubber sheaths O, held in place by teeth P. One arm N has an integral split sleeve K having teeth L which engages the braided covering at the free end of the cord H. The other arm has a lever T for opening the clip. The arm U has an aperture which can engage a split pin positioned in the bore of the second band clip when the device is not in use.
Patent GB-685697-A (GB)
Title: Improvements in yarn tensioning devices
IPC: B65H59/28
Filed: 1949-10-14
Abstract: 685,697. Yarn tensioning devices. RADFORD, F. W. Oct. 16, 1950 [Oct. 14, 1949]. No. 26425/49. Classes 120 (ii) and 142 (iv). A yarn tensioning device has a plurality of devices, such as superimposed discs or plates suitably arranged and disposed for a yarn to pass therethrough in a straight line and for successive devices to impart a compressive force to the yarn in different directions. As shown, the device consists of a base member 1 of substantially triangular cross-section, each face 3 and 4 of the base member having a series of pins 5, 6, projecting alternatively therefrom. On each pin 5, 6, are mounted two cup-shaped discs 7, 8, with their plain faces 9, 10, in contact. Thread guides 13, 14, are disposed at each end of the base member 1 and yarn is led in through one of these guides, between each pair of discs 7 and 8 and out through the other thread guide. Washers 15 of predetermined weight can be placed on the pins 5, 6, above the outer discs 8 to increase the tension on the yarn. The planes of successive pairs of discs are preferably arranged approximately 90 degrees apart.