baber/WOPTO huggingface dataset:
Patent GB-455801-A (GB)
Title: Improvements in or relating to circular knitting machines of the double axially opposed needle cylinder type
IPC: D04B9/10
Filed: 1935-06-06
Abstract: 455,801. Knitting-machines. SPIERS, Ltd., W., Walnut Street, Leicester, and KENT, A. W., Swithland, Leicester Road, Groby, Leicestershire. June 6, 1935, Nos. 16473/35 and 6437/36. [Class 74 (ii)] A superposed needle cylinder machine is provided with patterning mechanism comprising blade-like thread guides 1 arranged substantially axially of the needle cylinders and movable radially for wrapping the threads around the needles. The invention is described in connection with a rotary needle cylinder machine. The thread-guiding end 2 of each guide extends at an angle from the main portion and is laterally bent or cranked so that it is deflected by contact either with the corresponding needle or with a separate element for that purpose. The threads a may be guided from the bobbins 58 by tubes 75 having bent lower ends projecting through apertures 69a in a sleeve 69 supporting the bed 6 for the guides. In an alternative arrangement, the guiding means comprises perforated discs spaced axially within the sleeve 69. The guides are provided with butts 4 for actuation by levers or cams 8 controlled by the pins 21 of a pattern drum 20 or by a jacquard band. The guides are retracted by a cam engaging upwardly extending butts 17 on the guides, and to facilitate wrapping of the threads, the guides 1 are slightly lowered, i.e. moved axially of the cylinders, by a cam 9 engaging butts 5. The thread guides may be shogged with respect to the needles, the bed 6 being rotated by gearing including a pinion 37, Fig. 14, freely mounted upon the top cylinder driving shaft 36. The pinion 37 is driven by a reel 38 slidably keyed on the shaft 36 and having opposed stepped cams 40, 41, radially offset and engaged by rollers 42, 43, Fig. 12, on a pattern controlledsliding block 44. The reel 38 also has a projection 45 with stepped edges 45<a> to engage opposed screws 46 arranged on the underside of the pinion 37. The screws 46 are carried by a slidable bar 56 adjustable so that the amount of shogging for a predetermined movement of the block 44 can be varied. A pattern controlled cam is provided for nullifying the selective action of the pattern drum 20. The nullifying cam may be used with thread guides, half of which have long butts and the cam can be moved into two operative positions, for nullifying the patterning on all guides or for producing half round pattern effects, e.g. patterned insteps in a seamless hose machine. To ensure that guides, the patterning of which is nullified, do not wrap threads about the needles, a thread guard 91, Fig. 17, is arranged to be projected through a slot in the feeder plate 96 by mechanism connected with the nullifying cam. Alternatively, a guard in the form of a rotary disc having portions of different radii may be provided, the part of larger radius being inserted between the guides and the needles when no thread is to be wrapped about the needles. Specifications 24290/12, [Class 74 (ii)], and 443,736 are referred to.
Patent GB-1282342-A (GB)
Title: Xylylene dicarbamates and processes for their production
IPC: C08G18/38
Filed: 1970-04-09
Abstract: 1282342 Xylylene dicarbamates JAPAN GAS-CHEMICAL CO Inc 9 April 1970 [10 April 1969 20 Oct 1969] 17027/70 Heading C2C The invention comprises compounds of the formula where R is an alkyl C 1-4  group and n is 0 or an integer from 1 to 4. They are prepared by reacting the appropriate xylylene glycol with urea at 135-160‹ C. or with a lower alkyl C 1-4  carbamate at 120-180‹ C. In (a) a stoichiometric amount of urea is employed, an optional catalyst is an organotin compound and the reaction product is extracted with an aromatic hydrocarbon C 6-9  and the xylylene dicarbamate in the residue is extracted therefrom with nitrobenzene. In (b) a stoichiometric amount of carbamate is employed, the reaction may occur in a solvent comprising an aromatic hydrocarbon of boiling point above 115‹ C., a chlorobenzene or an alkoxybenzene, an optional catalyst is an aluminium alkoxide or a tetra-alkyl ester of titanic acid.
Patent GB-497653-A (GB)
Title: Improvements in and relating to transformer voltage regulators
IPC: H01F29/04
Filed: 1937-06-18
Abstract: 497,653. Automatic regulation; boosting transformers. BRITISH THOMSONHOUSTON CO., Ltd. June 18, 1937, No. 17048. Convention date, June 20, 1936. [Class 38 (iv)] The voltage of an A.C. circuit A, B, N is regulated by a boosting transformer having its series winding or windings 4, 4<1> connected in this circuit and its exciting winding or windings 9 connected to A, B through a switching device 7, one of the windings 5 other than a series winding having a device 8 connected across it, this device being of such a character that increase of the voltage applied to it causes a considerable decrease in its impedance, whereby the impedance of the series winding 4, 41 is limited during operation of the switch 7. The switch 7 may be operated by an electromagnet 10 to energize the winding 9 when the circuit voltage falls below the required value and the resonant circuit 15 becomes dissonant, relay 19 being allowed to close its contacts. On rise of the voltage above the required value, the circuit 15 which comprises saturable reactor 17 and condenser 18 beoomes resonant and relay 19 is energized to de-energize electromagnet 10, the switching device 7 being then operated to short-circuit the exciting winding 9. The winding 4<1> is omitted on applying the arrangement to a two wire A.C. circuit. The winding 5 may be connected in series with winding 9 to act as a second exciting winding and may, for example, be connected so as to assist or oppose the winding 9 in one position of the switch 7, one of the windings 5, 9 being disconnected or short-circuited in the other position of the switch 7. A large number of alternative methods of connecting the windings 5 and 9 with switching device 7, each giving a different range of regulation, are described in the Specification. Specification 292,110, [Class 38 (iv)], is referred to.
Patent GB-441530-A (GB)
Title: Improvements in or relating to door locks
IPC: E05B63/20
Filed: 1935-06-13
Abstract: 441,530. Night latches. STALBERG, H. A., 49, Kungsgatan, Eskilstuna, Sweden. June 13, 1935, No. 17057. [Class 44] A door lock openable from the outside by a key-operated cylinder lock and from inside by a handle has its latch bolt arranged to be held in a non-locked intermediate position, when the door is opened, by the engagement of two spring hooks, these hooks, when the latch is depressed by the closing of the door, springing apart to permit the bolt to shoot home in which position it is deadlocked by a tumbler lever. The latch bolt can also be held in its completely retracted position by the tumbler lever until the latter is raised by the key or handle. A latch bolt 8 is retractable by a finger 10 on a barrel 11 which is moved by a handle having a shank fitting within a non-circular slot 21 in the barrel or by a plate 20 connected to a cylinder lock. The finger also raises a tumbler lever 7 having two notches 12, 13, Fig. 3, for engaging a triangular projection 14 on the bolt when in its shot or completely retracted positions respectively. Movement of the lever 7 also causes movement of a lever 6 to withdraw a second latch 3 which is normally operated by a follower 5. Two hooked members 16, 18 pivoted respectively to the lock case at 17 and to the bolt are normally urged into the positions shown by springs. As the bolt is retracted by the finger 10 the member 16 is raised by the finger end until its hooked end is in the path of the hooked end of the member 18. If the bolt is then allowed to return by reversing the movement of the finger 10 the hooks engage before the pin 14 can enter the recess 12 in the tumbler 7. Pressing in the latch bolt then allows the hooked members to spring apart, the member 16 being no longer engaged by the finger 10, and the bolt can shoot home. The barrel 11 has an axial slot 23 engaging a pin 24 on a member 22 containing the slot 21 so that the ends of the member 22 can lie flush with the lock case as it is inserted into a mortice. The outer case 25 of the cylinder lock is then secured to the lock case and in so doing a projection 19<a> on the cylinder presses out the member 22 to engage further along the handle shank.
Patent GB-809994-A (GB)
Title: Power actuator with pilot control
Inventor: SMITH EDWIN ROY
IPC: B23Q35/08
Filed: 1957-05-29
Abstract: 809,994. Copy-turning. SENECA FALLS MACHINE CO. May 29, 1957, No. 17095/57. Class 83 (3). [Also in. Group XXIV] A reversible servo-mechanism for copying- lathes &c., comprises a pair of alternativelyengaged spiral-band friction clutches, engagement of a selected clutch being effected by operation of a control shaft connected to the clutches through worm-gearing (see Group XXIV). As shown, the servo-mechanism is mounted in a box C upon a transverselymovably upper table 20, itself carried upon a lower table 22 sliding longitudinally upon guides 23. An input shaft 10 is driven by a continuously rotating electric motor M, and a control shaft 40 is turned one way or the other by a reversible electric motor M through wormgearing G to tighten one or other of a pair of spiral clutch-bands in the box C, and thus transmit drive from shaft 10 to an outputshaft 15 which carries a pinion 42 engaging a rack 44 attached to table 22, the clutch remaining engaged so long as shaft 40 is rotating. The motor M1 is controlled by a pivoted feeler 25 sliding over a pattern P. A tool T on the upper table 20 engages a rotating workpiece W. As the lower table 22 slides on its guides 23, the feeler 25 follows the pattern P and causes the motor M1 to drive in one direction or the other, the control-shaft 40, and cause the upper table 20 and the tool T to slide transversely in correspondence with the pattern P.
Patent GB-940890-A (GB)
Title: Revolving disc mills
IPC: B02C7/06
Filed: 1961-05-10
Abstract: 940,890. Treating grain. BAUER BROS. CO., and B. STREETS. May 10, 1961, No. 17098/61. Heading A2Q. [Also in Division B2] A disc mill for wet milling for starch removal in which the fibre and corn fragments are exposed or freed for subsequent removal of the starch by washing comprises a pair of rotatable discs 28, 29 rotated in opposite directions in face-toface relation, means 27 to supply material into a central zone 32 between the discs, and radially-spaced formations on the faces of the discs for the purpose of accelerating the radial motion of the material, circumferentially distributing it and providing a surface against which the material so accelerated and distributed is impacted. The discs are driven in opposite directions by motor units 19, 21 and are encased by a housing 22 which has an inlet hopper 27 and an outlet passage 24. The slurry is fed into the hopper 27 and through passages 31 in the disc 28 into the space 32 between the discs, whereupon a vaned structure 33 on the face of the disc 29 urges the slurry radially outwards for discharge at the periphery into the housing 22 and outlet 24. The slurry on its passage outwards under centrifugal action is acted upon by teeth 38, 39, 44, 42 which are arranged oppositely-disposed on segmental plates 36, 37 on the discs; the teeth 44 form a circular set on the plates 36 of the disc 28 working in interfitting relation with the teeth 39, 42 on the plates 37 of the other discs. The teeth 38 on the plate 37 are formed as circumferentially-spaced projections and help to accelerate the slurry on to the rounded inner edges of the teeth 39 which serve to distribute the material circumferentially and admit it to the tapering passages 41 between them. Here the material is further accelerated and expelled thereupon into the path of the counter-rotating teeth 44. These act like the teeth 39 so that the material is forcibly expelled through the tapering passages 45 between these teeth and is impacted against the teeth 42 of the plate 37 for discharge through the tapering passages 43 between the teeth.
Patent GB-1120879-A (GB)
Title: Livestock feeder
IPC: A01K5/02
Filed: 1967-04-14
Abstract: 1,120,879. Livestock feeding appliances. C. E. LOESCH and L. J. LOESCH. 14 April, 1967 [18 April, 1966], No. 17163/67. Heading A1M. [Also in Division B8] A device for distributing animal fodder comprises an elongated open ended tray 20 propelled back and forth beneath a fodder supply outlet 12 by drive means 30, a number of dividers 52 being mounted along the tray so as to be movable between a position allowing a layer of fodder to pass the divider as the tray travels in one direction and a second position of engagement into the fodder as the tray moves in the opposite direction whereby the layer of fodder is held against movement with the tray and is progressively dropped as the open end of the tray slides out from under the layer of fodder. The sides 26 of the tray have a flange at their upper edges, which flanges move along tracks provided by rollers 24 mounted on track members (22) as the tray is reciprocated by means by electric motor 30 which is controlled by reversing switch 32 actuated by collars 46, 48 on cable 38. The feed supply outlet 12 is located centrally of the track and the tray carries flexible shoots 66 at its ends. Dividers 52 are pivoted on brackets 50 arranged on track members (22) so that the dividers on the left of the outlet 12 are prevented from swinging anticlockwise and those on the right from swinging clockwise. Each divider has a lower portion formed of resilient sheet material and carries tines at its lower edge.
Patent GB-1445297-A (GB)
Title: Method of producing acrolein
IPC: C07C45/75
Filed: 1974-04-19
Abstract: 1445297 Acrolein VOLGO POLITEKHNICHE INST and VOLZH AZVOD ORGANICHE SINTEZA 19 April 1974 [21 May 1973] 17176/74 Heading C2C Acrolein is prepared by the aldol condensation of formaldehyde and acetaldehyde in the presence of N-nitrosodiphenylamine. In a preferred embodiment, a mixture of acetaldehyde and formaldehyde containing an amount of acrolein are evaporated in the presence of N-nitrosodiphenylamine taken in an amount of 0À1 to 3 wt. per cent of the amount of acrolein, the resultant vapours are subjected to aldol condensation in the vapour phase on a catalyst consisting of coarsely porous silica gel promoted by 10 to 12 wt. per cent sodium silicate, at a temperature of from 270 to 300 C. in the presence of N-nitrosodiphenylamine taken in a quantity of 0À1 to 3 wt. per cent based on the amount of acrolein; the resultant gas mixture formed at the stage of aldol condensation and containing acrolein, acetaldehyde, formaldehyde and water is cooled to obtain a condensate; said condensate is rectified to isolate (a) a mixture of acrolein, acetaldehyde and water, and (b) an aqueous formaldehyde solution; said aqueous formaldehyde solution is concentrated and the concentrate recycled to the aforesaid evaporation stage; said mixture of acrolein, acetaldehyde and water is rectified in the presence of N-nitrosodiphenylamine taken in an amount of 0À1 to 3 wt. per cent based on the amount of acrolein to isolate an acrolein end product fraction and a fraction containing acetaldehyde containing 0-2 to 1À5 wt. per cent acrolein and the acetaldehyde fraction is recycled to the aforesaid evaporation stage. Alternatively the acetaldehyde and formaldehyde may be evaporated separately, only the former in the presence of N-nitrosodiphenylamine. The N-nitrosodiphenylamine may be supplied to the various stages in solution in a high boiling organic solvent, or in the case of the aldol condensation the catalyst may be impregnated with such a solution and dried.
Patent GB-561872-A (GB)
Title: Improvements in or relating to the manufacture of rectifier discs
IPC: H01L21/06
Filed: 1942-12-03
Abstract: 561,872. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd., RICHARDS, E. A., ELLISON, L. J., and GRAY, F. Dec. 3, 1942, No. 17191. [Class 37] Rectifier elements are stamped or cut from a large sheet of metal, coated with semi - conductor such as selenium and in order to prevent carry over of metal between counter electrode and base in the process, the parts which will subsequently form edges are masked by paper &c., the counter-electrode being sprayed over the selenium and paper, so that, on cutting, a strip of paper is left around the edge of each element which can be stripped off to leave a metal-free strip. A complete process comprises cutting holes C which will become centre holes for rectifier discs, masking the complete plate except for a ring round the holes and spraying a layer of insulator E around each, replacing the mask by another having holes G equal to the outside diameter of the working surface of the discs concentric with the holes C, mushroomshaped plugs J are inserted in the holes C to mask the centre part of the rings E and the whole is then sprayed with alloy as counterelectrode. Electric forming may take place at this stage, and thereafter the separate elements are produced by punching &c. on circles L, whereby a strip M of removable paper mask remains round the edge. Specifications 526,482 and 561,889 are referred to.
Patent GB-146148-A (GB)
Title: Apparatus for carrying loads on uneven or steeply inclined ground
IPC: B61B9/00
Filed: 1920-06-24
Abstract: 146,148. Lanino, P. G. Aug. 11, 1917, [Convention date]. Hauling by straight-line contact of ropes with endless gripping chains.-Means for transporting loads over uneven and steep ground comprise a pair of endless-track self-propelled vehicles 1, 2 connected by a beam 3 which supports the load. The body of each vehicle can turn about a vertical axis with respect to the beam 3 and about an horizontal axis with respect to the endlesstracks 4. The load may rest on a platform 6 which can be raised by pulley tackle 7. When the ground is very steep the apparatus is propelled by the engagement of pairs of driving chains 9 on the vehicles with a fixed rope. The chains 9 run between frames 10, 11 provided with rollers 12 and with means for forcing them towards each other.
Patent GB-687339-A (GB)
Title: Improvements in self-loading firearms and in particular small bore cannons
IPC: F41A3/66
Filed: 1951-03-14
Abstract: 687,339. Firearms. BREVETS AEROMECANIQUES SOC. ANON. March 14, 1951 [March 30, 1950], No. 17339/52. Divided out of 687,315. Class 92(ii) The breech-block structure in the form of a unit 6, 6a, 6b is movable with a reciprocating motion with respect to the breech case 2 of a self-loading firearm and is subjected to the action of a return system 18 which acts upon a part 16 carrying a pinion 15, the latter meshing with racks 14, 17 carried by the unit and breech case respectively. By this arrangement the displacement of the part 16 is one half of that of the unit. The unit shown is driven to the rear by the discharge gases which pass from the gun barrel through conduits 12 to chambers 13 where they act on the front faces of the bars 6a forming part of the unit. The other parts of the gun mechanism are the same as those forming the subject of Specification 687,315.
Patent GB-942368-A (GB)
Title: Apparatus for stretch forming and pressing metal stock and stock gripping head therefor
IPC: B21D35/00
Filed: 1962-05-07
Abstract: 942,368. Stretch forming. CYRIL BATH CO. May 7, 1962 [May 18, 1961], No. 17387/62. Heading B3E. A stock gripping head for gripping an edge of stock to be worked on in apparatus for forming metal stock, in which the stock is subjected to an operation which produces tension loads in it and whilst such loads are applied, performing one or more operations on the stock, comprises a body having a pair of jaws which are movable relatively to one another between stock gripping and stock releasing positions, and in which the stock engaging surface of one of the jaws is roughened, knurled or serrated and the other is smooth in relation to it. A length of stock of J-shaped section, Fig. 2, having a web W and a flange F covered with fabric D is gripped at its ends in heads 29, 30, the head 29 being mounted on a carriage 21 movable along guides 22 on an arm 5. The arm 5 is then rocked about a pivot 6 by piston and cylinder means 10 linked to an arm 8 extending from the arm 5. This causes a cam roller 23 on the carriage 21 to move along a fixed cam 24 and thus move the head 29 away from the head 30 to stretch the stock, usually above its elastic limit, and apply it to a side die 3. While thus stretched against the die, punches 60 form holes or notches in the work. The arm 5 may rock about horizontal trunnions 7. The gripping heads 29, 30 each comprise, Fig. 6, a fixed jaw 49 having a transversely serrated surface 50 and a spring-urged stop pin 52 and a movable jaw 38 having a smooth surface 40. The jaw 38 slides on an inclined surface 39 and has a suitable notch 41 to receive the hook of the J-section stock. Fluid-pressure means 45 move the jaw 38. A cam surface 51 serves to lift the jaw 38 slightly, clear of the stock, as it is retracted.
Patent GB-288462-A (GB)
Title: Improvements in or relating to lifting hooks for use more particularly in connectionwith oil well operations
IPC: E21B19/04
Filed: 1927-06-30
Abstract: 288,462. Vickers, Ltd., Little, H. L., and Childs, J. June 30, 1927. Hooks, spring. - Lifting hooks designed in connection with lifting operations in oil wells and of the kind in which the yoke c is trunnioned at b to a hollow crosshead B to which the hook A is connected so as to move vertically against the resistance of a spring as well as to rotate about an antifriction bearing E are provided with swivel bolts D placed in the hollow hook stems A', the spring F being confined between a nut d<1> on the bolt and a shoulder a on the stem A<1> The head d of the bolt may be locked relatively to the cross-head B by means of a stud b' which passes through a cover b<3> secured by screws b<4>. The mouth of the hook is locked by a hinged safety-catch G having a spring-controlled plunger which in the locking position engages with a recess a<3> in the mouth of the hook.
Patent GB-364507-A (GB)
Title: Aluminium alloys resistant to the action of seawater
IPC: C22C21/06
Filed: 1931-06-15
Abstract: Aluminium alloys resistant to the action of sea-water contains 6,5-7,5 per cent of magnesium and 0,3-0,8 per cent of manganese, and are substantially free from antimony.
Patent GB-1072147-A (GB)
Title: Improvements in or relating to hydrodynamic oscillators
IPC: B06B1/18
Filed: 1965-04-26
Abstract: 1,072,147. Vibratory mechanisms. E. HALILOVIC and B. RADISIC. April 26, 1965 [April 27, 1964], No. 17407/65. Addition to 942,508. Heading F2X. In the hydrodynamic vibrator of the parent Specification, the freely inserted body 2a has the general form of an elongated cylinder the centre of gravity of which lies outside the point of intersection of the longitudinal and transverse axes of the body. The ends 9 of the body or of the cavity in which the body is inserted may be paraboloid or hyperboloid in shape to increase the area of contact when the body is tilted. Unbalance is created by an eccentric hole 10 and a screwed plug with lock nut enables the axial length of the cavity to be altered. Other cross-sectional shapes of body are illustrated and fluid inlets may be provided only in proximity to the ends of the cavity while outlets are located only in the middle to hold the body away from the ends of the chamber.