baber/WOPTO huggingface dataset:
Patent GB-791789-A (GB)
Title: Machine tool spindle positioning mechanism
IPC: B23Q15/26
Filed: 1956-03-14
Abstract: 791,789. Grinding. CINCINNATI MILLING MACHINE CO. March 14, 1956 [March 21, 1955], No. 7959/56. Class 60. [Also in Groups XXII, XXXVII and XL(b)] In order to control accurately the stopping at a predetermined angular position of a rotating work spindle in a machine tool, e.g., a grinding machine, the electric motor driving the spindle has a power control circuit which includes a switch for decelerating the motor to a slower speed and a second switch to render photo-electric means effective for dynamic motor braking, the photo-electric apparatus having a light source on one side of a small hole in a disc mounted for rotation with the spindle and a photo-sensitive cell on the other side. The machine tool described includes a work spindle 17 belt-driven by an electric motor and with a disc 34 locked to it in adjustable position by bolts 36 in elongated slots 35. Photo-transistors 38, 39 are mounted on member 40 which also supports light source 44 ; holes 47, 48 are formed in the disc at corresponding radii. After grinding has been completed a manual switch brings the motor down to slow speed and the successive signals from the transistors bring it down to creep speed and stop it abruptly (see Group XL(b)) in the desired position.
Patent GB-281604-A (GB)
Title: Manufacture of photographic sensitive layers
IPC: G03C1/54
Filed: 1927-03-23
Abstract: 281,604. Grinten, F. van der, (trading as Chemische Fabriek L. van der Grinten). Dec. 11, 1926, [Convention date]. Diazotype processes. - A sensitive layer comprises an aromatic diazo-compound having a tertiary nitrogen atom in the para position to the diazo group and no substituent which might form an anhydride with the diazo group, such as hydroxyl, carboxyl, primary and secondary amino- or sulphonic acid groups. If the layer contains only the diazo-compound it is developed after exposure with a mixture of alkali and an azo coupling component; while if an azo coupling component is already present in the layer with the diazo-compound. development is effected with alkali only, and preferably with an alkaline gas or vapour such as ammonia. A salt such as barium chloride may be included in the layer to prevent bleeding of the developed azo-dyestuff. and a non- volatile acid such as citric or tartaric acid may also be included to prevent premature coupling if an azo coupling component is present in the layer. The diazo-compounds employed are those represented by either of the formula where X is a negative ion, such as Cl or OH. Substituents other than those excluded above may be present in the diazo-compounds in order to influence such properties as the stability, darkness of colour, or the tendency of the compounds. to couple, and may comprise for example, halogens, alkyls, oxyalkyls or aralkvls. Examples are described in which the layer contains (1) the compound obtained by diazotizing para-amino. dimethyl-aniline hydrochloride with nitrous acid together with tartaric acid and barium chloride,. development being effected by a weakalkaline solution of #-oxynaphthoic acid anilide; (2) the compound obtained by diazotizing para-aminodiethyl-aniline hydrochloride with nitrous acid, together with acid potassium citrate and barium chloride, development being effected with an alkaline solution of #-naphthol; and (3) 1- di-isoamylamino-2 : 6-dimethylbenzene - 4 - diazonium chlorostannate. citric acid, and 2 :7-dioxynaphthalene, development being effected with an alkaline bath such as limewater containing calcium chloride, or with the vapour of an alkali such as ammonia or of an alkyl amine. Specifications 210,862 and 234,818 are referred to.
Patent GB-509636-A (GB)
Title: Improvements in apparatus for testing locomotives and other mechanically propelled vehicles
IPC: G01M17/08
Filed: 1938-03-16
Abstract: 509,636. Testing drawbar pull. HEENAN & FROUDE, Ltd., and WALKER, G. H. March 16, 1938, No. 8091. [Class 106 (ii)] An apparatus for testing locomotives or other mechanically propelled vehicles as regards the pull of the drawbar is provided with a damping device and a spring cushion element in the drawbar system so as to smooth out heavy fluctuations in the drawbar pull. As shown in Fig. 1 a locomotive A, which is supported in the usual manner on drums B, is connected to the piston of a hydraulic cylinder C of the dynamometer by a drawbar D. The cylinder C is carried by a rigid anchorage J and the drawbar is provided in its length with a joint E to which is connected the short arm of a three armed lever F or of a bell crank lever F<1>, Fig. 3. The long arms of the levers are connected to the pistons of dashpots G; the connection may be made by means of articulated rods g<2> or the dashpots may be pivoted. The dashpot contains oil or other liquid and the two sides of the cylinder are connected by a pipe g<4> with an adjustable needle valve G<1> and with a relief valve G<3> arranged in parallel; the two sides of the cylinder are also connected by a pipe g<5> with a plug valve G<2> which is normally closed but opened to set up the apparatus. The spring cushion element H, Fig. 2, consists of two springs h inserted between the drawbar D and the piston c of the cylinder C. A centralising device by which the vehicle is maintained in its initial position is provided so as to avoid errors arising from deflection of parts under the influence of the drawbar effort. For this purpose the oil supplied to the cylinder C' is controlled by a motor driven pump K in communication with a storage tank L, a head tank M and a piston valve P to the cylinder C. The piston is connected to a rod p that is articulated to the frame of the vehicle and to a bell crank lever R<1> of a dashpot R, Fig. 4. Oscillations of the vehicle may be taken up by a spring interposer p' in the rod p. Longitudinal movements of the vehicle effect the opening of one or other of the ports p<2>, p<3> to control the supply of oil to or from the cylinder C. The valve P may be arranged centrally or may be duplicated and arranged one at either side of the vehicle. For use in setting up a pointer S' may be provided and an electrical resistance S may operate an indicator in the control cabin.
Patent GB-724115-A (GB)
Title: Improvements in rotor construction for turbines and like fluid flow machines
IPC: F01D5/18
Filed: 1949-07-15
Abstract: 724,115. Turbine and compressor blades and rotors. STALKER, E. A. July 15, 1949, No. 8121/52. Divided out of 724,073 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 16, 1950. Drawings to Specification. Class 110 (3). A turbine or compressor rotor comprises a plurality of hollow blades made from sheet metal and peripherally spaced about and secured to a hub, each blade comprising opposite convex and concave walls connected by a rounded nose continuous with each wall, the walls being braced internally by one or more bridging elements. The rotor is constructed as described in Specification 724,073.
Patent GB-290011-A (GB)
Title: An improved wireless receiving unit
IPC: H01Q1/24
Filed: 1927-03-24
Abstract: 290,011. Brown, A. M. H. R., and Brown, Ltd., S. G. March 24, 1927. Receiving sets, construction of.-For convenience of portability, a crystal set is enclosed in a cabinet and combined with a collapsable frame aerial. The frame aerial comprises bottom members D<1> screwed at d, d to lugs D<1x> on the top of the cabinet, top members D, and hinged side members D<2>. When extended the frame aerial stands square, grooved pulleys being provided to maintain the wires taut. The crystal detector is shown at B, Fig. 5, the tuning condenser at C, and a recess at the back of the cabinet accommodates the headphones P.
Patent GB-682305-A (GB)
Title: Improvements in moulding cores
Inventor: EVANS WALLACE ALFRED
IPC: B28B7/30
Filed: 1949-03-25
Abstract: 682,305. Reinforced concrete. EVANS, W. A., and EVANS, D. W. Jan. 11. 1950 [March 25, 1949], No. 8148/49. Class 20(iv) [Also in Group V] A collapsable core (see Group V) comprising rigid side plates 1, 2 and inner members 3, 4 may be used for positioning pre-stressed reinforcing wires. The wires are secured at each end to plates, one of which is adapted to fit over the projections on the end of the core and the other of which is acted on by a jack, the base of which is adapted to fit over the other end of the core. After tensioning the wires by means of the jack, the movable plate is enclosed and the jack removed.
Patent GB-1321398-A (GB)
Title: Device for tensioning a bolt and tightening a nut on the bolt  while the bolt is in tension
IPC: B25B29/02
Filed: 1972-02-22
Abstract: 1321398 Tensioning bolts and applying nuts thereto RKS 22 Feb 1972 [22 Feb 1971] 8218/72 Heading F2H A device for tensioning a bolt 1 and tightening a nut 2 on the bolt while the bolt is under tension comprises an annular jack including a traction bush 20 screwed on the end 22 of the bolt and engaged by a fluid-pressure operated annular piston 12 by means of which a tensile force can be applied to the bolt, and a rotatable bush 29 engaging about the nut 2 and to which a torque is applied by means of pressurized fluid to rotate the nut. Fluid under pressure is fed through duct 25 to force the piston 12 against the bush 20 to tension the bolt, and thence fed through passages 46 into an annular space defined between an annular member 36, entrained to rotate with the bush 29, and a fixed annular part 8. Bosses 42, 44 fixed to the part 8 and the member 36 respectively define chambers into which the passages 46 open so that on the supply of pressurized fluid through passages 46, the bosses 44 are pushed back as pistons and the member 36 and hence the bush 29 rotate in the direction of arrow 48 carrying with them the nut 2. Manometer 28 indicates the attainment of the desired fluid-pressure and hence the desired bolt tension and nut torque.
Patent GB-199457-A (GB)
Title: Improvements in and relating to the coiling of strip material
IPC: G03B21/32
Filed: 1922-03-21
Abstract: 199,457. Simms, W. H., (Pavely, A. G.). March 21, 1922. Feeding and winding webs. - Kinematograph films and other strips are formed into coils having a number of superimposed parallel convolutions each of which is half twisted in opposite segments of the coil; a coil so formed may be mounted on drums within a box, one of the drums being yieldingly supported for movement towards the other drum, and a number of such coils may be arranged in series. The coil is formed by passing the leading end of the strip round one drum 1, Fig. 8, giving it a half twist, then passing it round a second drum 2 and again giving it a half twist. The leading end is then temporarily connected to the oncoming convolution and the winding is continued, the trailing end of the strip being temporarily connected to the preceding convolution. The convolutions so fcrmed are of approximately equal length, and each end of the strip passes alternately to the inside and outside of the coil. As shown in Fig. 6, a kinematograph film is formed into a coil 16, as described, then formed into succeeding coils 16<a>, 16<b>, and passed through a projector and back to the coil 16, the ends of the film being connected together. Half twists 22 are formed between the coils and in front of the coil 16. The spindle 35 carrying the drum 2, Figs. 7 and 8, is mounted in bearings 36 sliding in slots 37 formed in the wall 23 and cover 24 of a box containing the drums, and its ends are secured to adjustable spring-tension devices 38 which allow the drum to move towards the other drum 1 as the coil is formed. The hub 31 of the drum 1 is mounted on a sleeve 28 secured to the box, and the sleeve surrounds a driving spindle 26 mounted in a fixed frame 25 which supports the box. Clutch elements 32, 33 provide a driving connection between the spindle 26 and the drum 1. A gravity pawl 41 normally prevents backward rotation of the drum, but may be put out of action by a cam 43, or secured to prevent rotation by the cam 43 and by a second cam 44.
Patent GB-550255-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K3/28
Filed: 1941-06-30
Abstract: 550,255. Inductor-alternators. BRITISH THOMSON-HOUSTON CO., Ltd., and BARWICK, E. C. June 30, 1941, No. 8231. [Class 35] A heteropolar inductor alternator has at least one generating coil whose sides lie in excitation fields having opposite directions. It is shown that this results in a saving in coils required for a given output voltage and leaves slots for the exciting coils entirely free so that the exciting turns can be increased. In one form a generating coil 1, Fig. 2 (Prov.), is wound round two armature slots so as to bridge oppositely excited poles 2 ; the remaining coils are wound round alternate slots. If the winding is of the kind with coils wound round each slot and reversely connected, a double-pitch coil occurs at each end of a pole. If the number of slots per pole is reduced to two, the windings will be entirely double-pitch coils, as shown in Fig. 2. In these examples the slots are twice the number of rotor teeth. The ratio of slot to tooth pitch may be non-integral so that the long coils are not exactly double the pitch of the short ones; Fig. 3 shows a twophase modification with 1 6/7 slots per pole per phase, in which the long coils are 1¥ times the pitch of the short ones. The slots containing the exciting coils are indicated by dotted lines 3. The separate phases are shown in full and dotted lines and the rotor teeth are indicated at 4.
Patent GB-964860-A (GB)
Title: Shipping container made of non-metallic material
Inventor: MONSEES HUGO
IPC: B65D39/08
Filed: 1963-03-01
Abstract: 964,860. Bushes. METAL CONTAINERS Ltd. March 1, 1963 [March 9, 1962], No. 8270/63. Heading B8T. A non-metallic container 11 e.g. of wood or paste board is lined at least on its inner surface by a thermoplastic material 12 and an opening therein is surrounded by a bush 14 to receive a closure member. The bush is injection moulded about the opening and since the melting point of the thermoplastic lining is equal to or lower than that of the bush, a fusing of the lining and bush takes place. To avoid shrinkage cracks the thickness of the wall lining may be greater at the periphery of the opening, or a ring of thermoplastic material may be employed.
Patent GB-551656-A (GB)
Title: Method of and apparatus for spray-drying liquids which have a non-liquid ingredient
IPC: A23C1/04
Filed: 1941-07-02
Abstract: 551,656. Spray evaporators. INREDECO, Inc. July 2, 1941, No. 8331. Convention date, April 24, [Class 32] Solids dissolved or suspended in liquids, e.g. milk are separated therefrom and obtained in dry finely divided form by atomizing the liquid in open atmosphere with air or other gases anterior to a separating chamber so that the solid ingredient is completely dessicated prior to entry into the separating chamber in which the finely divided particles are separated from the liquid. Jets 2, 2a, of the liquid impinge at any desired angle on a jet of hot air supplied through a nozzle 1. The hot air entrains the liquid and also a surrounding stream of cool atmospheric air and the mixed stream is passed through apertures of controlled cross sectional area formed in plates 4, 4a into a separating chamber 3 having a conical bottom 3b from which the dried particles are continuously removed through a conveyer 9 while the vapourized liquid and gasses are removed through an opening 7 under suction provided by a fan F. The chamber 3 may be arranged horizontally and the distance of the plates 4, 4a, may be varied from each other and from the jet 1. Carbon dioxide or nitrogen may be used instead of air.
Patent GB-626761-A (GB)
Title: Improvements in and relating to adhesive applying machines or devices
IPC: B05C1/02
Filed: 1947-03-27
Abstract: <PICT:0626761/III/1> <PICT:0626761/III/2> <PICT:0626761/III/3> A machine for applying adhesive to sheets comprises a container for liquid adhesive having a slot on the lower end thereof co-extensive with one dimension of the area of the adhesive to be applied, said container being freely supported in guide means to rest upon a pile of sheets, said guide means having end walls and a rear wall forming surfaces for locating the pile of sheets in the adhesive receiving position.  Referring to the drawings, a flat base 1 to carry the leaves 2 to be treated with adhesive has secured to it a guide structure consisting of a vertical wall 3 and end walls 4 at right angles thereto.  The walls may be of sheet metal and the upper parts of the end walls are extended to form front walls 5 lying parallel to wall 3 the whole arrangement receiving and guiding elongated container 6.  The container slides loosely between back wall 3 and front walls 5 and the flat sides 7 incline inwards at the lower end 7a to form a slot 8.  One or a series of slots may be provided.
Patent GB-1173280-A (GB)
Title: Improvements in or relating to Hollow Container Structures
Inventor: MORRIS DAVID RICHARD
IPC: B65D6/08
Filed: 1966-02-25
Abstract: 1,173,280. Storage tanks. ENGLISH ELECTRIC CO. Ltd. 7 March, 1967 [25 Feb., 1966], No. 8364/66. Heading E1T. In a storage tank having a thermoplastic lining 18 and at least one internal, tension member 13 of corrodable material, such as steel, the latter is protected by a thermoplastic sleeve 20 sealed at each 'end to the lining as by means of a flanged tubular member 21 welded thereto. The tank may be made of sheet steel lined with thermoplastic material.
Patent GB-185388-A (GB)
Title: Improvements in and relating to cones for roller bearings and the like
IPC: F16C33/64
Filed: 1922-03-22
Abstract: 185,388. Timken, H. H. Sept. 1, 1921, [Convention date]. Bearings. - The cones of roller bearings are finished by a process in which the cone is rotated about its axis in resilient contact with smoothing and polishing rollers. A conical ring 6 is located in the upper end of a hollow cylindrical member 4 accommodating a cage 11 provided with a series of conical rollers 8 having spindles 9 located in slots 10 of the cage. The upper end of the cage is provided with a removable ring 11<a> and the upper end of each roller is bevelled so as to work on the side face of the cone rib 12. A hollow spring-pressed platen 14 having limited axial movement in the member 4 is provided with a race-way having a series of conical rollers 18 located in a cage 19. In operation when the platen is in its raised position the rollers 8 are spread radially to allow the insertion of the double conical work piece 13. A concentric mandrel 28 is then inserted in the bore of the cone and rotated whereupon the platen is forced downwards against the spring-pressure and the lower end face and lower raceway of the work piece are simultaneously furnished. In a modification, the rollers may be mounted on a rotatable support and the cone may be either held stationary or rotated in the opposite direction. After burnishing the cone is heated and a plug of slightly larger size than the bore of the cone is inserted before quenching so that distortion after polishing and the consequent necessity for finishing by grinding are largely eliminated.
Patent GB-546229-A (GB)
Title: Improvements in electric hand lamps and the like
IPC: F21S6/00
Filed: 1941-07-03
Abstract: 546,229. Electric lamps. SULLAM, S. D. July 3, 1941, No. 8388. [Classes 75 (iii) and 75 (iv)] A hand, stand, wall, ceiling or miners' electric lamp or chandelier comprises a casing formed in two longitudinal sections having engaging flanges and secured together by threaded rings engaging their threaded ends. The electric leads are housed in grooves in the longitudinal sections. The sections may form extensions of a divided lamp holder constructed as described in Specification 545,797, [Group XXXVI]. Fig. 2 shows a table lamp comprising two longitudinal grooved sections G<SP>1</SP> having engaging flanges B and secured together by an internally threaded base M and a screwed ring L.
Patent GB-932535-A (GB)
Title: Improvements relating to central oil lubricating apparatus
IPC: F16N7/02
Filed: 1962-03-05
Abstract: 932,535. Lubricators. FRANZ MORAT G.m.b.H. March 5, 1962, No. 8420/62. Class 12 (3). In a central oil lubrication device, consisting of an oil reservoir 1, communicating with the atmosphere above the oil level 19 and having an oil outlet 8 closed by a spring-loaded valve 5a and opened by means of an electromagnet 4 against the pressure of a spring 6 to allow a continual flow of oil therefrom, the outlet 8 opens into the upper part of a hermeticallysealed distributer chamber 9, the lower part of which communicates by means of pipes 12, 12<SP>1</SP> with lubrication points beneath the device. In each outlet from the chamber 9 to the pipes 12, 12<SP>1</SP> a flow-regulating manually-operated valve 10, 10<SP>1</SP> is installed. The circuit of the electromagnet 4 is connected with an arrangement to switch on and off a machine with which the device is used so that the circuit is broken when the machine is switched off and vice versa. The electromagnet 4 is electrically connected in parallel with an electromotor driving a machine having some or all of its lubrication points served by the device.
Patent GB-547775-A (GB)
Title: Improvements in and relating to implements for digging
IPC: A01D11/02
Filed: 1941-07-03
Abstract: 547,775. Gardening forks. MALAN, L. DE M. July 3, 1941, No. 8432. [Class 6 (ii)] A support adapted for ready attachment to and detachment from a digging fork comprises one or more struts 10 pivotally engaging the cross-bar 12 of the fork and a bearing-plate 15 attachable to the strut or struts and arranged to contact with the ground surface behind the fork when the tines 13 are thrust into the ground, the support thus providing a fulcrum for the lever constituted by the handle and tines of the fork. In the construction shown in Fig. 1, two struts 10 having eyes 11 by which they are threaded on to the cross-bar 12 are employed, and are connected near their lower ends by the plate 15 and at a higher point by a bar 17 which forms a stop determining the minimum angle between the struts and tines. Such a fork is suitable for digging ridged crops e.g. potatoes, but, if the fork is also to be used for digging crops in unridged soil, e.g. carrots, each of the struts may be formed in two separable parts 10A, 10B, Fig. 5, and the cross-bar 17 attached to the shortened struts 10A for the latter purpose.
Patent GB-1467266-A (GB)
Title: Packaging method and apparatus
IPC: B65B41/16
Filed: 1974-02-25
Abstract: 1467266 Seaming AUTOMATED PACKAGING SYSTEMS Inc 25 Feb 1974 [28 Feb 1973] 8466/74 Heading B5K [Also in Division B8] A container 53 formed on a web 12 is filled from shoot 51 at station 50, and is then closed by heat-sealing, the container being held at spaced locations on either side of the heater 62 by grippers 63a, 63b to isolate the seal from forces exerted by the remainder of the web. Web 12 is fed to station 50 by driven roller 16, pressure roller 17 being retractable to allow initial threading of the web. The web faces are separated by air from blower 54, the containers being finally opened at station 50 by bursts of high-pressure air to receive articles 52. A resiliently, non-stick, faced bar 64 then presses the container walls on to pointed or serrated gripper bars 63a, 63b mounted on blocks 175 adjacent slit 61 in guard 60. The guard 60 retracts against springs 183 until the container touches heater bar 62 whose edge 162 is covered by a non-stick plastics film 160. The sealed oil-filled container is then torn from web 12 along a preformed line of weakness as the entire sealing assembly of heaters 62, grippers 63a, 63b, bar 64, and pneumatic actuator 72 are pivoted about shaft 75 as a frame structure 80, 81, 82, 68. The grippers are not retracted until tearing is completed.