baber/WOPTO huggingface dataset:
Patent GB-805873-A (GB)
Title: Improvements relating to clutch units, particularly for motor vehicles
IPC: F16D21/08
Filed: 1956-03-02
Abstract: 805,873. Electromagnetic clutches. DAIMLER-BENZ A.G. March 2, 1956 [March 3, 1955], No. 6646/56. Class 35. [Also in Group XXIV] A clutch unit between an engine and a change-speed gear comprises two clutches in series, the driven member of the clutch nearer the gearing having a lower moment of inertia and being engaged at a higher specific pressure than that of the other clutch. A motor vehicle engine shaft 10 carries a clutch half 12 of a magnetic powder clutch containing a winding 11 energized from contacts 40, 41 through a lead 42. The inner half of this clutch comprises armature halves 13a, 13b splined to hub parts 30a, 30b freely rotatable on a sleeve 32 splined to a gear-box shaft 17. Between the armatures 13a, 13b is a clutch half 16, of a second friction clutch, rigid with the sleeve 32. The armatures 13a, 13b are urged apart by a bellows seal 33 and springs 34 for disengagement from the friction plate 16 and against springs 39 urging sealing rings 38, 37 into contact with the hub parts 30b, 30a. Energization of the winding 11 causes frictional engagement of the second clutch 13a, 13b, 16 and magnetic powder engagement of the first clutch 12, 13a, 13b. The engagement being such that the first clutch, which has a relatively high inertia mass engages at a low loading, and the second clutch which has a relatively low inertia mass engages at a high loading. As applied to gearing having synchronized gears when the clutch combination is disengaged, the low inertia of the second clutch permits rapid synchronization of the gears, while the first clutch is designed to be suitable for the slower engagement of the torque to be transmitted and the heat developed during engagement. Specification 791,919, [Group XXIV], is referred to.
Patent GB-634014-A (GB)
Title: Improvements in and relating to fittings for tubular lamps
IPC: F21V17/10
Filed: 1948-03-03
Abstract: 634,014. Fastenings. CLARK, C. W. March 3, 1948, No. 6694. [Class 44] [Also in Group XI] In a tubular fluorescent lamp fitting 1 comprising a box-like structure 1, 2 with a bottom formed by a transparent or translucent plate, or by a louvre 3, 4 the end walls 2 of the structure are each provided or formed with lugs 8, 8<SP>1</SP> upon which rests a rod 7 which is threaded through slots 6, 6i, 611 formed in the ends of the bottom plate or louvre members 3 so that when the rod is raised clear of the lugs 8, 81 it can be moved laterally in the slots away from the end walls 2 and the bottom plate or louvre swung open. The rod is prevented from axial movement in the slots by means of washers 9, 9<SP>1</SP> provided on each side of one of the members 3. If desired, one end only of the louvre may be provided with slots 6, the other end of the louvre having the rod fixed thereto to serve as a pivot.
Patent GB-924647-A (GB)
Title: An arrangement comprising apparatus for the sending and receiving of information by phase shift carrier transmission
IPC: H04L27/22
Filed: 1961-02-23
Abstract: 924,647. Phase shift radio signalling. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 23, 1961 [Feb. 23, 1960], No. 6767/61. Drawings to Specification. Class 40 (5). In a phase shift telegraphy system the signals are preceded by a short carrier burst phase shifted by 90 degrees from the signal phase reversals and the output of the signal phase detector is rectified by a full wave rectifier so that a pulse is produced from the latter only during the short starting burst which indicates the start of a signal. Alternatively, one of the two inputs to the signal phase detector may be shifted through 90 degrees and applied with the other input to a second phase detector, this producing a pulse output only during the start carrier burst. A reference oscillator of equal frequency is used at the receiver for demodulating the carrier pulses, and synchronizes with the latter, but does not lock in phase with the " start " signal, due to its short duration.
Patent GB-752586-A (GB)
Title: Improvements in the lighting systems of automotive vehicles
IPC: B60Q1/14
Filed: 1954-03-09
Abstract: 752,586. Switching systems for vehicle lamps. ETABLISSEMENTS LAUTENBACHER. March 9, 1954 [March 11, 1953; Oct. 28, 1953], No. 6900/54. Class 38 (4). In a control system for vehicle lighting, wherein a manually-operated dashboard switch K allows the selective energization from the battery G of conductors II-IV for feeding, respectively, a flat-top-beam lamp, a fullahead-beam lamp, and the other forwardlydirected lamps, a change-over contactor E, P, F, having an intermediate " off " position and two pairs of operating windings A-D disposed on opposite sides of the contactor and energized over the conductors II-IV, is provided for the purpose of establishing a low resistance supply circuit to the selected flat-top-beam lamp or full-ahead-beam lamp which by-passes the relatively high resistance contacts of the switch K. In the arrangement shown, the switch K is set for energization of the flat-top. beam lamp, resulting in energization of windings A, C, D and consequent movement to the right of an armature which carries contact P and which is normally spring biased to a central " off position. Engagement of contact P with a fixed contact F closes the by-pass circuit, which includes a conductor LS. If switch K is moved to select the full-ahead-beam, coils A, B and C are energized and contact P moves into engagement with fixed contact E to establish a by-pass circuit to conductor III. When the other forwardly directed lamps are selected, only windings A, C are energized so that contact P assumes its off " position and no by-pass circuit is present. The switch K also has an " off " position in which none of the lamps are energized. In other arrangements the contacts E, F are disposed adjacent the opposite ends of a centrally pivoted armature carrying a contact P at each end; alternatively, two separate moving contacts E, F may co-operate with a common fixed contact P, a single spring tending to bias the moving contacts both away from the fixed contact and from one another.
Patent GB-572925-A (GB)
Title: Improvements in or relating to gas-operated automatic firearms
IPC: F41A3/46
Filed: 1942-05-21
Abstract: 572,925. Automatic firearms. BIRMINGHAM SMALL ARMS CO., Ltd., FAULKNER, H. A., and WACKROW, R. D. May 21, 1942, No. 6905. [Class 119] The drive-rod of a gas-operated firearm comprises a piston 4, hollow rod 1, side-bars 8 riveted to the rod at 10, a striker-post 12 secured between the bars by rivets 13, and a locking-block 14 by which the breech-locking wedge 16 is supported after it has been moved to locking position by cam-grooves 17 in the side-bars. The main spring 2 is rearwardly supported by a stem 3 projecting forwardly from a guide-piece 22, which latter is held in fixed position by a pin 24 and forms a rear abutment for the spring 2 and for a buffer spring 25. A sleeve 21, Fig. 10, is slidably mounted on the guide-piece 22 and has a lip 26 at its front end which forms the front abutment for the spring 25. The sleeve is struck by the end 28 of the piston-rod at the end of the recoil stroke.
Patent GB-1109560-A (GB)
Title: Improvements in or relating to descaling tools
IPC: B25D17/02
Filed: 1967-02-14
Abstract: 1,109,560. Percussive tools. INGERSOLL-RAND CO. 14 Feb., 1967 [11 March, 1966], No. 6936/67. Heading B4C. A needle-type descaling tool comprises a reciprocating impact member 7 mounted in a body 4 and adapted to strike a plurality of tool bits 21 mounted in a holder 17. The holder is urged by a spring 20 against a cap 6 at the forward end of a sleeve 5 releasably secured to the body; the spring serves to return the member 7 after it has been struck by a reciprocable impact piston 2.
Patent GB-1070899-A (GB)
Title: Improvements in or relating to front loaders
IPC: A01D87/00
Filed: 1966-02-17
Abstract: 1,070,899. Load handling machines. E. BAAS. Feb. 17, 1966 [Feb. 25, 1965], No. 7010/66. Heading B8H. A front loader (not shown) of the kind having connecting points for interchangeable working appliances, the connecting points comprising an engaging device and front fork bearings on a loading arm has a supporting part mounted inbetween the front fork bearings and a working appliance. The supporting part comprises a tubular cross-piece 1 provided with a number of connecting points 2, the pins of which can be inserted in the front fork bearings of the loading arm and secured in known manner by a cotter-pin. The supporting part is additionally secured at a connecting point (4), Fig. 3 (not shown), on a bar (3) to the engaging device. Tubes 6, telescopically displaceable in the cross-piece 1 and retained by pins 12, carry arms 7 with fork bearings 8 corresponding to those of the front loader and enable the distance between the fork bearings 8 to be adjusted according to the requirements of a particular working appliance. The bar (3) has an additional engaging device formed by a hook (9) to secure the working appliance. Supporting wheels 15 adjustably mounted on easily detachable bearing pins inserted in bearing holes (17) enable loads, whose weight exceeds the lifting capacity of the loading arm, to be transported at varying heights above ground level.
Patent GB-357929-A (GB)
Title: Improvements in or relating to cooling apparatus for reciprocating pistons
IPC: F01P3/10
Filed: 1931-03-06
Abstract: 357,929. Cooling pistons. SULZER FR’RES SOC. ANON., Winterthur, Switzerland. March 6, 1931, No. 7017. Convention date, June 7, 1930. [Class 122 (i).] In piston-cooling apparatus of the kind wherein a jet of cooling medium i, delivered from a fixed nozzle is received in an orifice or pipe l reciprocating with the piston, an air chamber m is arranged in the passage b e - tween the orifice and piston to effect damping of the pressure impulses in the system due to surging of the liquid. A non-return valve n may be provided to prevent flow of liquid back to the air chamber from the piston.
Patent GB-640489-A (GB)
Title: Manufacture of ª‡-methylene-ª†-lactones
IPC: C07D315/00
Filed: 1948-03-08
Abstract: a -Methylene g -lactones are produced by reacting at an elevated temperature a b -ethinyl alcohol with nickel carbonyl in the presence of an acid, e.g. hydrochloric, hydrobromic, phosphoric or acetic acid.  The reactants alone or mixed with a diluent are heated together, generally at 40-80 DEG  C. and preferably at not less than 55 DEG  C.  Specified diluents are methanol, ethanol, acetone and tetrahydrofurane.  It is also advantageous to include water with the reactants as well as a polymerization inhibitor such as hydroquinone. In examples: (1) nickel carbonyl is added slowly to a heated mixture of beta-ethinyl ethanol, acetic acid, water, hydroquinone and ethanol, in a vessel fitted with a reflux condenser.  The vessel is flushed out with nitrogen and the mixture being maintained at 60-70 DEG  C.  After removing unchanged nickel carbonyl by a stream of nitrogen the reaction mixture is cooled and any nickel salts obtained are separated by filtration.  The liquid residue on distillation yields a  - methylene - butyrolactone; (2) a solution of nickel carbonyl in ethanol is added to the same reactants as in (1) but at 80 DEG  C. and without including hydroquinone.  After cooling ether is added and the volatile components distilled off at 100 DEG  C. Water is added to the residue which is then extracted with ether. Hydroquinone is added to the dried ether extract which is then distilled, yielding the same product as in (1); (3) the procedure of (2) is repeated using b -ethinyl isopropanol instead of the b -ethinyl ethanol.  The product is a -methylene-g -methyl butyrolactone.  U.S.A. Specification 2,106,182 is referred to.
Patent GB-659502-A (GB)
Title: Improvements in or relating to pulse radar systems
IPC: H01J17/04
Filed: 1949-03-15
Abstract: 659,502. Radio systems. GENERAL ELECTRIC CO., Ltd., HARRIS, N. L., and NEILL, T. R. March 15, 1949, No. 7098. [Class 40 (v)] In a pulse radar system with separate transmitting and receiving aerials, a T.R. switch 4 of the type described in Specification 594,460 is arranged in a wave-guide, as in said Specification, between the receiving aerial and the receiver. A steady positive potential from the cathode resistance 28, 29 of a cathode-follower valve 27 maintains a discharge between the priming electrode 14 and one of the main electrodes 8 of the switch. A positive pulse of greater amplitude is applied to the priming electrode from valve 27 during the transmitter pulse to break down the main gap 7, 8 to protect the receiver from heavy echoes reflected from objects nearer than the minimum working range of the system. The control pulse is derived from a negative pulse from the transmitter applied to valve 16 of a flip-flop circuit 16, 17 which feeds a positive pulse to the grid of the cathode-follower valve 27 and hence to the cathode and priming electrode 14. The initial steady discharge may be started by a momentary reduction of the resistance 30 connected across the valve 27.
Patent GB-104591-A (GB)
Title: Improvements in Apparatus and Appliances for Preventing the Overwinding and Underwinding of Cranes, Hoists, Lifts, Winding Drums, and the like.
IPC: B66B5/10
Filed: 1916-05-24
Abstract: 104,591. Allen & Co., E., and Furnival, E. H. May 24, 1916. Stopping automatically at end of run; indicating limit of wind.-In electrically-operated cranes, hoists, lifts, winding-drums, &c. the current is cut off automatically when the load approaches the limiting positions by means actuated by a traversing-nut c on a screwed shaft b geared or otherwise connected to the winding-drum. On the underside of the nut c are pivoted two blocks d, d' which are in alinement with adjustable screwed stops h, h<1> mounted in a double-armed frame f provided at its centre with a peg i. The frame f can be moved along a shaft e in either direction against the action of springs, and in its central position, the peg i engages a similarly-shaped peg j carried by a vertical rod k. A coiled spring l forces the rod k upwards as soon as the peg i has been moved off the peg by the movement of the frame f caused by either of the blocks d, d<1> bearing against the corresponding stop h, h<1>. The upward movement of the rod k actuates an electric switch (not shown) which cuts off the current from the hoisting-motor. The nut c carries two insulated buttons h, h<1>, one of which closes one of the pa.irs of contacts o, o or o<1>, o<1> just before the current is cut off, and actuates an audible or visual signal.
Patent GB-1255257-A (GB)
Title: Improvements in and relating to a method of and a device for moulding substantially flat crockery
IPC: B28B1/02
Filed: 1969-02-11
Abstract: 1,255,257. Moulding ceramic plates. HEINRICH ZEIDLER K.G., and PORZELLANFABRIK ARZBERG ZWEIGNIEDERLASSUNG DER PORZELLANFABRIK KAHLA. 11 Feb., 1969 [13 Feb., 1968], No. 7388/69. Heading B5A. Plates 5 are moulded from ceramic material in a plaster mould 1, configured at 4 to the underside of the plate, which is rotated about an axis 2 as a non-rotating moulding tool 3, which is configured at 8 to the upperside of the plate and is inclined at an angle to the axis 2, is lowered to contact and spread the ceramic material. The moulding tool 3 may be cylindrical, and may be rotated about its axis 6 between successive moulding operations to present a fresh surface of engagement to the material.
Patent GB-862246-A (GB)
Title: Devices on vehicles for lifting and discharging containers
Inventor: DEMPSTER GEORGE R
IPC: B65F1/12
Filed: 1959-03-04
Abstract: 862,246. Discharging bins into vehicles. DEMPSTER BROS. Inc. March 4, 1959, No. 7488/59. Class 78 (4). Arms 8 (Fig. 2) for raising a bin 26 to be tipped into the body 6 of a vehicle are shaped to bridge the vehicle cab 4. The arms 8 may terminate in outwardly-flared forks 21 for engaging trunnions 27 on the bin and the forks may have safety recesses 25 to receive the trunnions 27 should they fall from the main slot in the hooks. As the bin is raised it is tipped by engagement of a hook 28 on it with a bar 29 carried on arms 30 pivoted at 80 to the vehicle and biased by a torsion-spring (not shown) so that they normally rest against a stop 35. The arms 8 are swung by hydraulic rams 14. Resilient buffers on the outer ends of the arms may engage stops on the front bumper of the vehicle. In alternative constructions (Figs. 8 and 11, not shown) the arms 8 terminate in forks which engage pockets on the containers similar to those described in Specification 861,552 (which is referred to) and the forks can be turned relatively to the arms 8 to tip the bin, by hydraulic rams. The arms 8 may also terminate in forks 58 (Fig. 9) adapted to engage pins 57 on the drop bottom 56 of a skip 55 which is formed with a member 61 taking over the shaft 45 of the forks. With this arrangement the skip is first raised to the position B where it is held against a stop 62 on the vehicle, and the forks 58 are then swung downwardly to allow the bottom 56 to drop. The forks 58 may be operated directly or through gearing from rams 50.
Patent GB-869611-A (GB)
Title: Improvements in knock-down garment form and support therefor
IPC: A41H5/01
Filed: 1958-03-10
Abstract: 869,611. Lay figures. BALDWIN, A. March 10, 1958, No. 7655/58. Class 52(5). The knockdown lay figure disclosed in Specification 847,076 is suspended from an adjustable support 80 by a separate, conical, collar section 50 engaging the neck opening and having apertures 64 and 59 to receive arms 63 and U-bend 62 of a support member 60 which is received in the support 80. A strengthening gusset 72 having tags 77 engaging apertures in the waist and back sections is apertured to receive the support 80. In a modification the U-bend of the support member embraces the upper end of the support.
Patent GB-1235371-A (GB)
Title: Improvements relating to detachable ends, especially applicable to hand trucks
IPC: B62B3/00
Filed: 1968-02-16
Abstract: 1,235,371. Hand tracks. H. C. SLINGSBY Ltd., and G. SLINGSBY. 5 Feb., 1969 [16 Feb., 1968], No. 7682/68. Heading B7B. [Also in Division E2] The detachable sides of a hand track are secured by a catch 9 including a tubular portion which is pivotable and slidable on a vertical end member 10 of a detachable end 8 or on a fitting integral with the end and adapted to releasably hold the end to a fixed side member 2. As shown, the catch includes a hook-like part 12 which when the catch is rotatable into its fastening position in use is engageable with an upright 3 of an adjacent side member 2 and with a cross member 15 of the side member. The end member is provided with a U-shaped lug 16 for engaging the adjacent upright 3 of the side member 2.
Patent GB-1518581-A (GB)
Title: Brush mounting assembly for dynamo-electric machine
IPC: H01R39/42
Filed: 1976-02-26
Abstract: 1518581 Electrical machine brushgear E M AZAROV V N ANDRUSHEV and G M KHUTORETSKY 26 Feb 1976 07706/76 Heading H2A A brush mounting assembly comprises two rigidly inter-connected conducting plates 2 and at least one removable brush unit 1, the unit 1 including one or more brushes 25, one or more leaf springs 31, 32 for retaining the brushes 25 in the unit 1, means for securing the unit 1 between the plates 2, and a handle 7 for removing and inserting the unit 1 relative to the plates 2, the unit 1 further including a contact member 8 which is movable relative to the leaf springs and which has flat contact surfaces 9 which are brought into face-to-face contact with flat surfaces 5 of contact members 4 on the plates 2 when the unit 1 is inserted between the plates. In the assembly illustrated, the unit 1 includes a housing 6 with projections received in guide grooves (3, Fig. 1, not shown) in the plates 2, and has retaining tabs 23 biased into plate notches 24 by a resilient member 22, the contact member 8 being pressed against the members 4 by springs 18 acting between the housing 6 and the member 8. The unit 1 can be removed by pulling the member 22 into the dotted form 22<SP>1</SP>, thereby to withdraw tabs 23 from notches 24 and so to release springs 18. The brushes 25 are retained in the unit 1 by the co-action of the leaf springs 31, 32, the former being forced against the sides of the brushes when the unit 1 is removed from the machine but being freed from the brushes when the unit 1 is in position in the machine.
Patent GB-978374-A (GB)
Title: Actuator for aerosol medication spray dispensers
Inventor: SILSON JOHN E
IPC: C13B30/02
Filed: 1963-02-26
Abstract: 978,374. Aerosol containers. REVLON (SUISSE) S.A. Feb. 26, 1963 [March 12, 1962], No. 7719/63. Heading F1R. An actuator sleeve 1 is adapted to receive an aerosol container including a valve stem 3, and to direct spray through an orifice 7. A cover 9, pivoted on the sleeve and in the open position maintained by a flange 9a and detent 14, acts as a directing nozzle. In the closed position of the cover 9 a nose 15 enters an aperture 16 and also engages the top of the container so that the actuator sleeve is held against downward movement. The cover 9 has a longitudinal opening to enable it to embrace the sleeve when closed as shown in Fig. 3. The orifice 7 may be flanked by air intake holes 17.
Patent GB-668389-A (GB)
Title: Improvements relating to the disinfection of telephone mouth pieces
IPC: H04R1/12
Filed: 1949-03-23
Abstract: 668,389. Sanitary and hygienic devices. MAUGHAN, G. H., and SIMMONS, H. J. A. March 23, 1950 [March 23, 1949], No. 7890/49. Class 40 (iv). A disinfectant tablet is placed in a receptacle c formed in a spring clip a which clips over the edge of a telephone mouthpiece b.
Patent GB-434825-A (GB)
Title: Improvements in methods of automatically examining surfaces
IPC: B07C3/14
Filed: 1934-03-13
Abstract: 434,825. Photometric apparatus. RADLEY, W. G., and SPEIGHT, E. A., Post Office Engineering Research Station, Dollis Hill, London. March 13, 1934, No. 7981. [Class 97 (i)] [See also Group II] A method of and means for detecting the presence on or absence from a surface of a distinguishing mark of predetermined character which comprises arranging a number of groups of photo-electric cells to be illuminated each by light from a different part of the surface and providing that the light from one group includes not only light from a part of the surface but also light from a surface of comparison. Letters or packets 1 are carried by a band conveyer below a scanning box 3. Inside the latter a lamp 4 projects a beam of light through a lens system 5 and screen 6 on to windows 7, 8 which are separated by a partition 9 passing to two separate areas of the packet which reflects the light on to two photo-electric cells 10, 11. These are connected across an energy source 14 in series with resistances 12, 13 and the arrangement is such that when no stamp is present, the points X, Y are at the same potential. These points are connected respectively to the grid and cathode of a thermionic valve 15 having a grid bias battery 16. When a stamp is present the potentials are unequal and a current passing through the valve increases and operates a relay or indicating device 18. In a modified construction one window has attached to it a stamp for comparison purposes and the circuit is arranged so that when circuit is out of balance because a stamp of the correct denomination does not appear at the window 7, the relay 18 is energized. The light may be reflected or transmitted in which latter case the cells are on opposite sides of the surface under examination. The change in current due to the presence or absence of a distinguishing mark may be used to control devices of a known type, whereby the articles can be separated according to the position occupied in the surface by the mark.