baber/WOPTO huggingface dataset:
Patent GB-682134-A (GB)
Title: Improvements relating to safety door locking devices particularly for motor vehicles
Inventor: NALLINGER FRIEDRICH
IPC: E05B65/20
Filed: 1951-02-09
Abstract: 682,134. Safety locking device for doors. DAIMLER-BENZ AKT.-GES. Feb. 9, 1951, No. 3238/50. Class 44 A vehicle door lock is provided with a safety locking device actuable from the inside comprising a member movable to lock the door fastening element when the door is closed and prevented from such movement when the door is open. In the form of Fig. 1, the latch bolt d having normal operating means e is lockable in the projected position by an arm g of a bell-crank lever f displaceable to abut the rear end of the bolt by an irreversible mechanism, e.g. a worm gear (not shown). A sliding rod i contacting the door frame at the hinge end is projected as the door closes from the blocking position shown, where a lug m engages under the other arm h of the lever f to prevent its being moved to the locking position, to a release position where the arm g is free to move to the locking position. In the form of Fig. 2 the locking arm g similarly operable through a worm gear n to abut the rear end of the bolt d is blocked when the door is open by a lever m<SP>1</SP> which abuts a lug p. The lever m<SP>1</SP> is moved to the position shown, where it allows the arm g to lock the bolt, by the engagement between the arm i<SP>1</SP>, and the edge l<SP>1</SP> of the door jamb a<SP>1</SP>. The locking device may alternatively be applied to fastening means other than the bolt of the normal door lock.
Patent GB-163410-A (GB)
Title: Improvements in or relating to means for preventing windows from rattling
IPC: E05F7/04
Filed: 1920-02-03
Abstract: 163,410. Wood, W. Feb. 3, 1920. No Patent granted (Sealing fee not paid). Rattling of windows, preventing. -A spring- metal plate having a flat base 1 and a curved arm 2 projecting therefrom is fixed to one of the adjacent faces of the window or window frame to prevent rattling.
Patent GB-585263-A (GB)
Title: Improvements in or relating to radio frequency carrier current communication systems
IPC: H04J9/00
Filed: 1945-02-09
Abstract: 585,263. Multiplex wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. Feb. 9, 1945, No. 3364. Convention date, Feb. 12, 1944. [Class 40 (v)] A frequency-modulated currier is keyed to produce pulses of constant recurrence frequency, phase duration and amplitude. The communication channel thus formed may comprise one of a number of such channels intercalated to produce a multiplex system. At the transmitter of the multiplex system described, each channel has a F.M. oscillator 400, 420, 440, Fig. 4, feeding an amplifier 406, 426, 446 and coupler 409, 429, 449, the combined signals feeding a common amplifier 410 and aerial 411. A keying control means 415 is connected to keying means 408, 428, 448, which produce the channel pulses, those in the second and third channel being appropriately delayed for intercalation by phase-shifters 425, 445. A special synchronizing signal may be introduced in the first channel from source 412. At the receiver, Fig. 5, an R.F. amplifier 502 feeds a frequency changer 503 and individual I.F. channel amplifiers 504, 524, 534. These are followed by gating stages 505, 525, 535, frequency discriminator demodulators 505A, 525A, 535A, A.F. amplifiers 506, 526, 536, low-pass filters 507, 527, 537 and reproducers 508, 528, 538. The I.F. amplifiers are blocked during the intervals between the pulses of their particular channel by circuits 509, 529, 539 controlled through phase shifters 512, 522, 532 from the output of a detector 510, fed direct from the frequency changer 503, and a filter 511 which selects the basic pulse recurrence frequency component from the composite received wave which is gapped at this frequency. The appropriately timed unblocking pulse is derived in the circuits 509, 529, 539 by clipping and shaping this basic frequency phase-displaced wave. When a special synchronizing modulation is used it is derived from the output of the discriminator 505A. The blocking voltage may be applied to R.F. amplifier or frequency changer if they are separate for each channel. The signals may be transmitted over a highfrequency line or wave guide instead of a radio link.
Patent GB-230963-A (GB)
Title: Improvements in vertically adjustable supports or brackets
IPC: A47F5/06
Filed: 1924-02-11
Abstract: 230,963. Twigg, J. Feb. 11, 1924. Brackets, adjusting and securing. - A vertically adjustable bracket comprises an arm C provided with undercut hinge pins E<2> for engagement in undercut slots D<3> in a stirrup member D embracing a vertical pillar B. The arm C is disconnected from the stirrup D by relative lateral movement following upward tilting movement of the arm. The pillar B may be provided with projections or notches for engagement by the stirrup or the inner end of the arm. According to the Provisional Specification, small spikes may be provided on the gripping faces of the stirrup and arm.
Patent GB-588342-A (GB)
Title: Improvements in air filters
IPC: B01D46/20
Filed: 1945-02-12
Abstract: 588,342. Air filters. HABER, N. T. [Representative of HABER, E. J.] Feb. 12, 1945, No. 3492. [Class 8 (ii)] A travelling band filter for air and gases comprises a continuously moving endless perforated band 19 disposed up and down in zigzag fashion around a plurality of top and bottom rolls 5, 6, 7 and 11, 12, 13, 14 so as to provide a plurality of vertical stretches 191 to 196, and a horizontal stretch which passes through an oil-bath 4; the gas being directed so as to pass through the oil-wetted vertical stretches in succession. The perforations in theband which is of metal are in the form of louvred slots and dirt is removed from the stretch 196 which is the first to be subjected to dirt-laden air by wetting with oil and then by brushing with spring pressed brushes 25, 26. Surplus oil is removed by brushes 25, 26. Baffles 31, 33, 34 prevent dirt-laden air from by-passing parts of the band.
Patent GB-692061-A (GB)
Title: Process for the sulphonation of alkylated aromatic hydrocarbons
IPC: C07C309/31
Filed: 1951-02-14
Abstract: <PICT:0692061/IV (b)/1> Alkyl aromatic hydrocarbons are continuously sulphonated by feeding a sulphonating agent into the upper part of a vertical tube provided with packing, baffles or the like, feeding the aromatic hydrocarbon in the liquid phase into the lower part of the tube, passing an inert gas upwardly through the tube at such a rate as to maintain the reactants in counter-current flow, and withdrawing the sulphonation product and unreacted hydrocarbon from the upper end.  The hydrocarbon is preferably benzene, toluene, a xylene or naphthalene mono-substituted by an aliphatic or cycloaliphatic group of 8-15, especially 8-10 carbon atoms. Excess acid may be removed from the sulphonation product by washing with more than 50, preferably 60-80 per cent of its weight of 55-80, preferably 65-75 per cent sulphuric acid or with 5-10 per cent of its weight of water. The washing step may be effected in the same manner of counter-current flow as the sulphonation.  Apparatus comprises a tube 1, packed except near its ends and having a jacket 4.  The sulphonating agent, e.g. sulphuric or chlorsulphonic acid is fed by pipe 6, hydrocarbon by pipe 8, and air or other gas by line 9, products being withdrawn through overflow 10.  In examples: (1) a C12 monoalkyl benzene is treated with 95 per cent H2SO4 at 65 DEG  C. and a residue time of 45 minutes, air being the inert gas; (2) the sulphonic acid is treated with a downward counter-current stream of 72 per cent H2SO4 at 70 DEG  C. to give a product which on neutralizing contains 90 per cent alkali metal sulphonate; a C9 mono-alkyl benzene is water washed in counter-current at 50 DEG  C. to yield a 90 per cent alkali sulphonate.
Patent GB-956010-A (GB)
Title: Improvements in or relating to flexible post binders
IPC: B42F13/02
Filed: 1961-01-31
Abstract: 956,010. Filing papers. WILSON-JONES CO. Jan. 31, 1961 [Dec. 21, 1960], No. 3628/61. Addition to 872,574. Heading B6E. Flexible sheet-retaining posts of resinous material, e.g. nylon, copolymers of styrene and butadiene having a major portion of styrene, polypropylene and polyethylene, have a tensile strength of at least 8000 pounds per square inch, an impact strength of at least 0.6 foot pounds per inch, a modulus of elasticity of at least 100,000 dynes per square centimetre and a hardness of at least R80 (using the Rockwell method of determining hardness). Posts 9 are attached at one end to the lower cover member 2 which has threaded sockets 5, each post being provided with an enlarged head 10 which is screwed into the socket. The head 10 is threaded or plain, in the latter case the threads in the socket 5 cutting complementary threads on said head 10. Alternatively the sockets 5 have a smooth interior and the posts are provided with enlarged heads.
Patent GB-784164-A (GB)
Title: Improvements in pie making machines
IPC: A21C11/00
Filed: 1955-02-08
Abstract: 784,164. Pie-moulding machines. PARKER, R. Feb. 7, 1956 [Feb. 8, 1955], No. 3645/55. Class 87(2). The upper die of a pie lid or pie cover moulding machine is formed with a plurality of retractable blades in its lower surface to remove the lid or cover therefrom after moulding. A pie moulding machine is modified for the purpose by being fitted with dies A<SP>1</SP>, B suitable for a pie lid, the bottom die A<SP>1</SP> being secured by a bayonet type coupling and the top die B being bolted to the die head B<SP>1</SP>. As the upper die rises it carries the moulded pie lid on its under surface, which may be helically grooved to promote adhesion. The blades C fit in slots in the upper die B, Fig. 3, and radiate from the base of a pillar c, to the top of which is attached a cross-bar D which can move in slots b2 in the die head. Bolts d project upwards from the ends of the cross-bar and their upper ends strike the machine casing A when the movable die head approaches the top of its stroke so that the blades C are pushed out of their slots and strip the moulded pie lid. The edges of the blades are normally retained flush with the under surface of the die by springs d<SP>1</SP> beneath the cross-bar D. Fig. 5 shows a blade shape designed to prevent pastry from escaping along the sides of the blade. In a modification, Fig. 6, the blades C extend through the upper die B and are mounted on a pillar a<SP>3</SP>. When the die head rises the crown a<SP>4</SP> of the pillar a<SP>3</SP> comes into contact with the machine casing to depress the blades against the action of a spring d<SP>1</SP>. Any pastry escaping up the sides of the blades is scraped off and deposited on top of the die B. A heater may be incorporated in the die head to facilitate the stripping of the moulded pastry.
Patent GB-434803-A (GB)
Title: Improved means for preventing the jamming of articles in an opening or openings through which they are being fed
IPC: A24C5/36
Filed: 1934-02-05
Abstract: 434,803. Recovering tobacco from imperfect cigarettes. LEGG, O., 21, Goswell Terrace, Goswell Road, London. Feb. 5, 1934, No. 3696. [Class 130] Spoilt cigarettes or pieces of cigarette rod are deposited between guide bars B on a travelling belt and fed through openings to cutting devices. To prevent jamming in the openings a plate 1 having a serrated edge 4 is arranged in front of, and moved transversely across or away from, the openings. The plate is adjustably suspended from a bearing 2 on a shaft 3 which is carried by links 10, 11 and is moved transversely with a slight rising movement by a bell-crank lever 14, while a crank arm 9 rocks the bearing 2 on the shaft 3. Specifications 361,085 and 377,774 are referred to.
Patent GB-1027413-A (GB)
Title: Improvements in or relating to pipe bending machines
Inventor: HOWELL NORMAN
IPC: B21D7/024
Filed: 1964-01-29
Abstract: 1,027,413. Bending tubes. FULLERTON, HODGART & BARCLAY Ltd. Jan. 29, 1965 [Jan. 29, 1964], No. 3731/64. Heading B3E. A pipe-bending machine comprises a former 1 having an arcuate portion, a radial arm 3 rotatable about the axis of curvature of the arcuate portion of the former 1 and engageable with the portion of a pipe 2 fitted to the former 1 lying beyond the former, a mandrel-supporting arm 6 pivoted at 7 at one end to the radial arm 3 at a point offset from the axis and the other end of which carries mandrel-supporting means 9, Fig. 2 (not shown), arranged to swivel relatively to the mandrel-supporting arm 6, and a straight mandrel 14, supported by the means 9 and insertable within the end of a pipe 2 fitted to the former 1. The arm 3 engages the tube 2 through a forming shoe 5. The mandrel 14 is slidable in the means 9 a distance limited by the engagement of a pin, in one of a series of transverse holes in the mandrel, with the means 9. A distance piece may be inserted between the enlarged rear end of the mandrel 14 and the means 9 so that the mandrel may be extracted from the bent tube by swinging the arm 3.
Patent GB-706840-A (GB)
Title: Means for the end to end connection of bars forming mine roof supports
IPC: E21D17/086
Filed: 1949-01-11
Abstract: 706,840. Mine roof supports. DOLLERY & PALMER, Ltd., (Soc. d'Etudes et de Recherches Industrielle et Minieres, S.E.R.LM.). Jan. 11, 1949, No. 3808/53. Divided out of 706,762. Class 20 (2) I-section bars for supporting mine roofs are connected end to end by members pivotally connected to the bars and which allow tilting of the bars in a vertical longitudinal plane and about their longitudinal axes and allow relative bodily movement of bars in said vertical plane and transversely thereto. In Fig. 1, eyes 35a of links 35 are drilled for the reception of a connecting bolt 36 and each link 35 is pivoted by a pin 35' to a plate 2 welded to the side of one end of each bar 1. The plates 2 are on opposite sides of the bar web 2'. In a modification the plates 2 are on the same side of the bar and the links are bent over and drilled to receive the connecting bolt 36. In a further modification rings 38a, Fig. 3, engage loosely in holes in plates 3 on the ends of the bars and are connected by an S-shaped hook 39. In Fig. 6 the bars are connected by plates 41 loosely engaging, by holes, pins 40 in holes in the bar and plates 4 fixed between the bar flanges. In further modifications a hook on one bar engages an eye 42, Fig. 8, on the other both being attached to the bars by eyes 46 straddling the bar webs. A safety bar may be slid along the hook to engage its end and prevent disengagement.
Patent GB-475714-A (GB)
Title: Improvements in and relating to portable abrading and filing machines
IPC: B24B55/10
Filed: 1937-02-09
Abstract: 475,714. Portable rotary filing &c. machines. BRIGGS MANUFACTURING CO. Feb. 9, 1937, No. 3834. Convention date, Feb. 10, 1936. [Class 83 (iii)] [Also in Group XXIII] A portable filing-machine for treating motor car panels &c. comprises an electric motor 1 having a handle 2 at one end, provided with a switch 11, and carrying at its other end a housing 4 for a fan 3 to which is secured a gear casing 5 having therein a shaft 6 carrying a rotary filing disc 8. The fan casing has an outlet 4a leading to a dust bag or separator, and the fan 3 is mounted on the motor shaft 7, which runs in a ball bearing 15 provided with a dust cover. On the shaft is a helical pinion 16 driving a helical gear 18 on a shaft 19 mounted in a ball bearing 20 carried by a sleeve 21 in a web 5c of the casing 5, and the outer end of the shaft 19 is formed into a bevel pinion 19a driving a bevel gear 25 on the shaft 6. The shaft 19 has an extension 22 screwed therein seated in a bearing 23 in a cover 24, and the gears 15, 18, 19a, 25 are arranged so that there is a slight outward thrust on the part 22 against the bearing 23. The shaft 6 runs in ball bearings 26, 27, a felt washer 28 and retaining ring 29 being fitted round the shaft 6 to seal the bearing 27. The casing 5 has a skirt 5f carrying a rubber skirt 31 with its lower edge close to the work, so that a narrow annular space is provided around the tool 8 for entry of air to the fan, whereby the cuttings are collected and removed to the outlet 4a.
Patent GB-715973-A (GB)
Title: Improvements in or relating to frequency selective circuit arrangements for use withvideo and like signals
Inventor: HELSDON PETER BENNETT
IPC: H04B3/14
Filed: 1952-02-13
Abstract: 715,973. Impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 29, 1952 [Feb. 13, 1952], No. 3885/52. Class 40 (8) An equalizing network for a coaxial cable 1 and 2 comprises a network R1, R2, L1, and C1 dimensioned to be a correct termination of the cable, and having a transformer secondary S1. connected at one end to line conductor 1, and forming a transformer with inductance L1. The secondary S1 boosts signals of a frequency which is attenuated in the cable a more than average amount. In the modification shown in Fig. 2 a second secondary S2 is provided co-operating with an additional inductance L2 in the network and compensating attenuation in a further frequency range. Further transformers can be provided if other parts of the frequency spectrum require compensation.
Patent GB-1098511-A (GB)
Title: An improved heat recuperator
IPC: F28D7/00
Filed: 1965-01-28
Abstract: 1,098,511. Thermal recuperators. INDUSTRIE-COMPANIE KLEINEWEFERS KONSTRUKTIONSUND HANDELSGESELL. SHAFT m.b.H. Jan. 28, 1965 [Feb. 4, 1964], No. 3889/65. Heading F4S. A heat recuperator comprises a heating gas duct Ch in which tubes R, R 1 , R 2 , R 3  extend generally perpendicularly to the direction of gas flow through the duct, said tubes being bent or curved in this direction only and their ends communicating with fixed upper header tanks 2, 4 and with one or a rigidly-interconnectedplurality of lower header tanks 3 (or 7, 8, Fig. 2) recessed into the wall of the duct, an adjustable shoulder 6 being located at a point below the first tubes contacted by the gases P and beneath the lower header tank or tanks. The shoulder 6 supports the front portion of the tube assembly when the tubes expand on heating. The first tubes, which are subjected to the greatest heat, have their initial curvature less pronounced than the following tubes such that on heating, the tubes expand until the shoulder 6 abuts with the front portion 3a of the transfer tank. The shoulder 6 may extend the width of the recuperator and may be adjusted vertically or horizontally along the flow path.
Patent GB-1421131-A (GB)
Title: Collapsible laddern
IPC: E06C9/14
Filed: 1972-01-27
Abstract: 1421131 Collapsible ladder H OLSEN 29 Jan 1973 [27 Jan 1972] 3907/72 Heading E1S A collapsible ladder comprises rungs 1 connected to two side members made up of pivotally connected sections 2, 3 whereby the ladder may be folded, and adjacent sections 2, 3 have apertures at their ends to receive pivots and are provided near their common pivot 4 with a projection on one section engaging a recess in the other section, whereby when the ladder is unfolded to its straight condition the projection abuts an edge of the recess to prevent further relative rotation of the adjacent sections 2, 3; pivotally mounted on the side members are spacers 8 which, when the ladder is hung vertically, fall into a horizontal position for abutting a wall on which the ladder is used, the spacers having stops to limit rotation. The ladder may have one end secured in a container 11 which will accommodate the collapsed ladder, the container being secured to a wall &c of a building whereby the ladder may be used as a fire escape. The recess is arcuate and extends around the associated pivot, and the projection slides therein. The spacers 8 are mounted on the pivots 4, and their stops abut the side members. The rungs 1 are hollow, and the ladder is of aluminium.
Patent GB-807942-A (GB)
Title: Reservoir for liquids
IPC: G01L19/00
Filed: 1957-02-05
Abstract: 807,942. Mercury manometers. BRITISH PETROLEUM CO. Ltd., and SMITH, H. Feb. 5, 1957, No. 3928/57. Class 106 (2). [Also in Groups XVII and XXIX] A reservoir for mounting on the measuring limb of a mercury manometer to prevent the loss of mercury under excessive pressure conditions has an outer tube 2 at its base, and an inner tube 14 is slidably mounted in the tube 2. The tube 14 has an outlet 21 for liquid into the upper part of the reservoir and also one or more outlet ports 15 near its lower end which are sealed by the outer tube when the inner tube is in a lower position and which are open to permit liquid which has accumulated in the reservoir to return to the outer tube when the inner tube is in an upper position. The reservoir is mounted on a fixed support 6 by means of a screwed collar 4 which is sealed with respect to a pipe 7. The reservoir has a cover 9 with vent holes 10. The cover 9 has a cap 11 with a downward tubular extension 12 supporting a baffle plate 13. The cap 12 has slots 25 engaged by pins inside a knob 17 which is secured to a solid extension 16 of the inner tube. The latter is raised by the knob 17 against the pressure of a spring acting on a flange 19. The knob is then turned so that the pins 24 rest on the top of the cap 11.
Patent GB-685139-A (GB)
Title: Improvements in or relating to lift trucks
Inventor: WILLIAMS JOHN BRYNMOR
IPC: B62B3/06
Filed: 1950-02-16
Abstract: 685,139. Lift trucks. AJAX TRUCKS, Ltd. Feb. 6, 1951. [Feb. 16, 1950] No. 3944/50. Class 78 (iii). In a lift truck, the platform 2 is raised on parallel links 4 by a lever 7 which is pivoted to the truck frame at 6, engages the underside of the platform with one end and is operatively engaged at the other end by a cam 14 which is rotatable in both directions by a ratchet gearing driven shaft 12. The lever carries rollers 9, 11, which respectively engage a plate 10 on the platform, and the edge of cam 14. The shaft 12 carries a pair of ratchet wheels 15, 25, the former of which is operatively engaged by a reversible pawl 20 on a pedal lever 16, and the latter co-operating with balls in a housing 26 which, when locked to the frame by a clamp screw 30 during lifting, prevents reverse rotation of shaft 12 when the return stroke of lever 16 is made under the action of a spring 18. When platform 2 is loaded, lowering under the control of a rotary dashpot 32 is effected gravitationally by releasing screw 30, but when the platform is empty pawl 20 is reversed and shaft 12 is positively rotated in the reverse direction through lever 16. This lever may be hand operated or, when the truck is power driven, it may be reciprocated by the truck propulsion unit. The lever 7 may be in two or more parts connected together by cross portions, and its bearings and rollers may extend transversely between the parts as shown in Fig. 2. An adjustable stop 33 secured to shaft 12 co-operates with a fixed abutment 34 which limits movement of the shaft. In modifications described in the Provisional Specification only, the cam 14 may be replaced by toothed wheels, cranks or eccentrics.
Patent GB-936162-A (GB)
Title: Improvements in and relating to heat exchange recuperator units
IPC: F23M20/00
Filed: 1961-02-02
Abstract: 936,162. Heat recuperators. BROWN FINTUBE CO. Feb. 2, 1961 [Feb. 8, 1960], No. 3971/61. Addition to 931,111. Class 64 (3). The recuperator of the parent Specification is modified by making the tubular elements 50, 51 extending into the heating gas duct, of rectangular cross-section. The tubular elements adjacent the wall 11 of the heating gas duct may, as shown, be such that on the side nearest the wall, the peripheral space formed between the elements 50, 51 may have a width 70 substantially greater than the width 71 of the remaining spaces between said elements. The fins 72 are made correspondingly larger in the wider passages.