baber/WOPTO huggingface dataset:
Patent GB-1378603-A (GB)
Title: Needle assemblies for use with apparatus for collecting blood samples
IPC: G01N33/48
Filed: 1973-05-02
Abstract: 1378603 Blood sampling devices BECTON DICKINSON & CO 2 May 1973 [29 June 1972] 20921/73 Heading A5R Blood . sampling device: A needle assembly 20 in a blood sampling device comprises housing 21, a cannula 22 extending from the housing 21 for penetration into a blood vessel 48, a second cannula 23 extending from the opposite end of the housing 21 and adapted to be coupled in communication with the interior of an evacuated container 45, a passage between the tips of the cannulae 22, 23 and a resilient elastomeric valve member 30 normally closing the passage but adapted to respond to a reduction in pressure in the cannula 23, to deform and automatically open the passage until the pressuure in the cannula 23 rises to a predetermined value and automatically closes the passage, thereby forming a non- return valve. The housing 21 includes a portion 33 having a tapered bore and a portion 24 having a complementary shape, the cannulae 22, 23 being adhesively secured to the portions 24, 33 respectively. The portion 33 has a threaded surface 37 for engagement with a holder 44 for the container 45 which has a resilient pierceable stopper 47. The needle assembly 20 is packaged in a sealed sterile capsule (41), Fig. 1, (not shown) made in two parts (42, 43) which are bound together by a band (144).  Valve members: The valve member 30 is an elastomeric sleeve engaging the cannula 22 and having a closed end. One or more self-sealing slits 32 are formed in it and act as the non- return valve, opening only when the evacuated container 45 is coupled in to increase the pressure differential across the slits 32. In an alternative embodiment, the valve member (30a), Fig. 12, (not shown) is a thin elastomeric disc held against the cannula (22a) by castellations (50) and forming a seal with arris defined by grooves (51) in the forward portion of the housing (21a). In a second alternative embodiment, an aperture (53), Fig. 19, (not shown) is formed in the side of the cannula (22b) and an elastomeric sleeve (54) is fitted over the aperture (53). The end of the sleeve (54) and that of the cannula (22b) are sealed by an adhesive. In a third alternative embodiment, a double pointed cannula (22c), Fig. 25, (not shown) is sealed near its middle by a crimp (55) and an aperture (56) formed in the upper part of the cannula (22c) which is then enclosed by an elastomeric sleeve (58) to form the non-return valve.
Patent GB-662386-A (GB)
Title: Preparation of salts of phthalocyanine pigments
IPC: C09B67/00
Filed: 1949-08-11
Abstract: Salts of sulphuric acid stable phthalocyanine pigments are made by reacting the pigment under anhydrous conditions in an inert organic liquid having a solvent action on the acid with a non-oxidizing mineral acid sufficiently strong to form salts with the pigment, an aliphatic sulphuric ester of not more than 6 carbon atoms, an aromatic sulphonic acid of the benzene or naphthalene series, or an aliphatic sulphonic acid of not more than 6 carbon atoms, the amount of the acid being at least stoichiometrically equivalent to the phthalocyanine pigment.  The salts may then be hydrolysed by means of a stronger proton acceptor than the pigment, to give a form of pigment less liable to flocculation when used in coating compositions, e.g. nitrocellulose lacquers.  In examples, copper phthalocyanine is treated in nitrobenzene with the following acids, followed by hydrolysis: (1) xylene sulphonic acid; (2) sulphuric acid monohydrate; (3) benzene, toluene, or naphthalene sulphonic acid; (4) phosphoric acid; (5) dry hydrogen chloride; (6) ethyl sulphuric acid; (7) isothionic acid.  Also in examples: (8) zinc, cobalt, nickel, or metal-free phthalocyanines are reacted in nitrobenzene with xylene sulphonic acid; and copper phthalo-cyanine is reacted (9) with xylene sulphonic acid in o-dichlorbenzene; and (10) with dry hydrogen chloride in benzene, toluene, nitrobenzene, or acetic acid. Hydrolysis is effected in the examples with methyl, ethyl, or isopropyl alcohol, with methanol saturated with ammonia, with dimethylaniline, or with pyridine or dimethylaniline, or with pyridine or dimethylaniline mixed with methyl or ethyl alcohol. Other acids specified are hydrogen bromide, methane and ethane sulphonic acids, and methyl sulphuric acid.  Other solvents specified are xylene, mono- and tri-chlorbenzene, chloroform, trichlorethylene, nitromethane, -ethane, and -propane, glacial acetic acid.  Other proton acceptors for effecting hydrolysis are water, quinolines, trimethylamine, morpholine, and aniline.
Patent GB-121609-A (GB)
Title: Improvements in Safety Razors.
Inventor: THEOPHILE PINEAU
IPC: B26B19/00
Filed: 1918-12-16
Abstract: 121,609. Pineau, T. Dec. 14, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Hair-cutting appliances of safety-razor type; razors, safety. A safety-razor comprises toothed guards 2, 5, Fig. 1, arranged so that the teeth 3 of the guard 2 are staggered with respect to the teeth 4 of the guard 5. The cutting-blade 1 is disposed so that its edge cannot come in contact with the surface of the skin. In a modification which may be used for cutting the hair of the head, the upper guard 5<1>, Fig. 8, has long teeth shaped as shown, and the lower guard 16 is formed without teeth. The blade 1, Figs. 1 and 8, may be fixed with respect to the guards or may have a rotary or reciprocating motion. In one arrangement, a circular cutting-blade is formed as, or secured to, a turbine-wheel driven by water or air, which enters a passage 8, Fig. 2, and is discharged through a passage 9. In a modification, a circular cutting-blade is rotated by clockwork or by a finger-operated plunger having teeth which engage a pinion or ratchet-wheel arranged to drive the cutting-blade. In another arrangement, the cutting-blade has a swinging motion or a rectilinear reciprocating motion.
Patent GB-461231-A (GB)
Title: Improvements in margin-stop mechanism for typewriters
IPC: B41J29/50
Filed: 1935-07-11
Abstract: 461,231. Typewriters. TOMBOLINI, A. July 11, 1935, No. 21022/36. Convention date, July 11, 1934. Divided out of 461,183. [Class 100 (iv)] Margin stops.-Two sets of stops, for determining the right and left margins, are mounted as letter-space intervals on the framework and are selectively projected by means of keyoperated slides mounted on the carriage. In the mechanism shown in Figs. 2, 6 and 9, two sets of stops 15, 15<1>, for determining the right and left margins respectively, are arranged at letter-space intervals and are mounted'to slide vertically in saw-toothed guide-slots 16 formed in strips 17 which are secured to a housing 18 on the framework. The stops in the sets 15, 151 are projected by means of slides 21, 21A which are mounted in the carriage and are arranged over a lever 26, also mounted in the carriage. A bail 31, co-operating with the lever and shoulders 30 on the slides 21A, is connected to a fork 32 co-operating with pins 33, 34 on rocking plates connected by links 37, 38, and levers to keys 39, 40. To project a selected stop in the set 15 or 15<1>, the carriage is moved into the position corresponding to the stop, and the key 40 or 39 is depressed. The projected stops are retained by co-operation of notches therein with spring-urged bars 41, 411. When any stop is projected, the bar 41 or 41<1> is retracted to release the previouslyprojected stop by means of arms 42A, 43 on rocking plates 19, 20 in the path of the slides 21, 21A. An erroneously-set stop can be released by partly depressing the key 39 or 40, or by manipulating the arm 42A or 43.
Patent GB-499666-A (GB)
Title: Improvements in or relating to winding apparatus, such as winches and the like
IPC: B66D1/06
Filed: 1937-07-29
Abstract: 499,666. Winches. SHIRSHOV, I. P. July 29, 1937, No. 21052. [Class 78 (v)] In a self-sustaining winch a manual or power-operated member 15 fits loosely at 15<1> in a shaft 2 and imparts rotation thereto by a pin 16 engaging the ends of a slot 17 in an arm 11 fixed to the shaft 2. Pivoted to the arm 11 are two pawls 12 drawn together by a spring and each engaging a ratchet wheel 13 fixed to the casing 11 and furnished with radial teeth. Rotation of the handle 15 in either direction causes the pin 16 first to lift the pawl 12 which prevents motion in that direction and then to push the arm 11 around and turn the shaft 2. The drum 1 is journalled on the shaft 2 and on a stationary stub 8, and mutating reduction gearing is provided between the shaft 2 and the drum in the form of a pinion 4 loosely mounted on a crank-pin 3 on the shaft 2 and engaging a larger inside pinion 5 on the drum. The pinion 4 is prevented from rotating about itself by slots 9 which take over projections 10 extending from a coupling 6 which has a sliding engagement with a fixed disc 7 in a direction at right-angles to that in which the pinion 4 moves over the coupling.
Patent GB-477759-A (GB)
Title: Improved liquid brake system
IPC: B60T17/04
Filed: 1936-09-25
Abstract: 477,759. Fluid - pressure brakes. ROTADISK - APPARATEBAU GES. Sept. 25, 1936, No. 21063/37. Convention date, Sept. 28, 1935. Divided application. [Class 103 (i)] A brake, more particularly of the hydraulic transmission type, comprises a coupling in each pipe, leading liquid to a wheel brake having a valve which is held open when the coupling is connected and is closed when the coupling is disconnected.
Patent GB-498244-A (GB)
Title: Improvements in or relating to fluid-mixing valves
IPC: G05D23/13
Filed: 1937-07-30
Abstract: 498,244. Mixing - valves. SADLER, A. L. (Leonard-Rooke Co.) July 30, 1937, Neo. 21099. [Class 135] A mixing-valve for fluids of different temperatures, for example, hot and cold water, has inlets 22, 23 and an outlet 24 for the mixture. The cold water enters into a chamber 30 and passes through the bore of a fixed hollow plug 37 to outlet ports 43 whilst the hot water enters into a chamber 29 and passes through a passage formed by a reduced portion 41 of the plug 37 and a tubular shell 36 to outlet ports 40. The outlet ports 43 and 40 are controlled by a rotatable ported sleeve 47 which is actuated by a thermostatic unit 65 in a mixing chamber 21 which communicates with the outlet 24 through a chamber 31 comprising two thermostatic coils 66, 67 arranged in series, one of the coils beinganchored to an adjusting spindle 53 whilst the other is coupled to the sleeve 47. In a modified arrangement an additional outflow lift-valve is provided actuated by a cam on the adjusting spindle 53 to shut off the flow entirely. In another arrangement the plug member 37 is axially movable and carries seatings cooperating with hot and cold inlet ports for shutting off the supply.
Patent GB-669994-A (GB)
Title: Multi-contact switching device and circuit controlled thereby
IPC: G06M1/10
Filed: 1948-08-10
Abstract: 669,994. Automatic exchange and other selectors. LEICH ELECTRIC CO. Aug. 10, 1948 [Oct. 3, 1947], No. 21103/48. Class 40 (iv). Repeated operation of a single magnet causes the successive actuation of a number of sets of relay springs. As shown, Figs. 3 and 4, each spring set is associated with a pusher 45 ... 55 and a latching spring 30 ... 40. The operating magnet S, at each operation, moves all the pushers forward, but since each pusher except the first rests on the latching spring associated with the preceding spring set, only one spring set is actuated at a time. Its latching spring 30 ... 40, which normally rests on the insulated head of the central spring such as 21 of the set, then flexes to the position shown in Fig. 4 and the pusher of the next spring set can thus be operated effectively by the next impulse. After use, all the latching springs are raised by a bar 65 actuated by a magnet R. In a modification, Figs. 8 ... 10 (not shown) and 11, the first of two springs forming a set 158, 159 is moved into contact with the second by the operative impulse and the second spring is then moved out of contact with the first and latched by the subsequent impulse. The second spring to be set has an ear 165 carrying an extension 166 and shelf 167. When the first spring 158 is actuated, the latch 148 moves behind it as before but is stopped by the shelf 167. In response to the next impulse, the pusher of the reset spring set engages the extension 166 and moves the second spring out of contact. The latch is then able to move behind the shelf 167 to latch the second spring in this position. In a further modification with the same object, Figs. 12 ... 15 (not shown), each second spring has an ear with an insulating stud which is engaged by an ear on the first spring of the next set when the latter is actuated and is thus forced out of contact with its own first spring. The spring sets may include any number of springs and the first set may include a pair which remains operated, after the remaining pairs of the set have been separated by the second impulse, to act as off-normal springs. Circuit arrangements. Connections are illustrated in Figs. 5 ... 7 (not shown), whereby the switch of Figs. 3 and 4 can be used for connecting a wire to ten other wires in turn, a final impulse then causing the impulse circuit and the wire to be extended to a similar unit. In Fig. 16, the other type of switching unit is shown applied to the selection of a circuit by a telephone subscriber. Dialled impulses are repeated at 123 to the actuating magnet S which operates the spring sets in turn, each operation of a set causing the opening of the preceding set. If the wanted circuit is idle, switching relay 130 extends the talking circuit. Relapse of release relay 124 energizes release magnet R over off-normal springs 1D forming part of the first spring set.
Patent GB-1205992-A (GB)
Title: Improvements in or relating to electromagnetically releasable disc brakes
IPC: F16D55/00
Filed: 1968-05-03
Abstract: 1,205,992. Disc brakes. SIEMENS A.G. 3 May, 1968 [5 May, 1962], No. 21199/68. Heading F2E. [Also in Division H2] In an electromagnetically releasable discbrake, especially for an electric motor, the brake-pressure-springs 16 are constrained between a magnet-armature-disc 11, associated with the brake disc 5 (mounted on the motor fan 4), and a pressure ring 14 which is axially displaceable by a threaded ring 15 screwed on a fixed sleeve 13 to adjust the braking torque. The ring 14 is normally prevented from rotating by leaf springs but may be adjusted with a pipe-wrench by removing the cover 20. The brake may be held released by set-screw 31 in a lever arm engaging pull-off pins (19), Fig. 4 (not shown), or temporarily released by inserting a tool through a hole in the top of the cover to bear on the lever arm.
Patent GB-1074406-A (GB)
Title: Low-current generation, calibration and measurement
Inventor: BRADLEY THOMAS JOHN
IPC: G01R19/12
Filed: 1965-05-19
Abstract: 1,074,406. Calibration. ELECTRONIC ASSOCIATES Ltd. April 15, 1966 [May 19, 1965], No.21234/65. Heading G1U. A current of less than 10<SP>-8</SP> amps for calibrating an instrument (13) is produced by charging a capacitor (C) from a ramp voltage developed by a Miller integrater (11). If the instrument has a high input impedance, the time to attain steady state is reduced by shunting the Miller capacitor (Cf) by a small capacitor (C'f) in series with a diode (D), thus reducing the time constant until the ramp voltage is sufficient to cut off diode (D).
Patent GB-702613-A (GB)
Title: Improvements in emergency escape apparatus for aiding escape from buildings
IPC: A62B1/14
Filed: 1951-09-10
Abstract: 702,613. Fire &c. escape apparatus. STEWART, P. Sept. 10, 1952 [Sept. 10, 1951], No, 21251/51. Class 47 Fire escape apparatus comprises an apron 6 which is placed over a window sill 12 and anchored to the floor by a rope 9, hooks 10 and eye 11, and a rope 17 which is provided with a harness 19 at one end and is passed over pulley 18 in a block 15 secured to the rope 9 by an eye 16. The apron 6 is provided with wooden slats 14, and the pulley block is provided with braking means.
Patent GB-642071-A (GB)
Title: Improvements in or relating to the remote control and protection of electric motors
IPC: H02H7/00
Filed: 1948-08-12
Abstract: 642,071. Protective cut-out arrangements; electromagnetic relays. BROOKE, W., and BALDWIN, H. T. Aug. 12, 1948, No. 21280. [Class 38(v)] In an arrangement for the remote control and protection of a motor used for driving coal-cutting or other portable machinery, the motor M is stopped on the occurrence of a fault and cannot be restarted until the fault has been removed and the remote control switch E has been reopened to enable a lock-out relay R3 to reset A transformer Z operating at magnetic saturation is used to supply a substantially constant voltage to the protective control circuit and tc the closing coil C1 of a circuit-breaker C when a relay R1 is sufficiently energized to close its contacts 13, 14. A relay R2 has its contacts 15, 16 connected in series with the operating coil W1 of the relay R1 and the normally closed contacts of an overload relay F and earth leakage relay G. The switch D and the relay R3 are connected by a pilot earth conductor 10 and pilot line 17 to the operating coil W2 of the relay R2. Assuming that the switch D is open and that the three-phase supply lines L1-L3 are connected, current is supplied from a step-down transformer T and bridge-connected rectifiers H1-H4 through resistances J1, J to the coil W2 of relay R2 which closes its contacts 15, 16 to connect the relay R1 to the pilot circuit 10, 17. A coil W3 of the relay R3 is energized through a resistance E and the relay R3 closes its contacts 19, 21 to short-circuit the resistance E. The relay R1 remains open, as though its coil W1 is now connected to the pilot circuit, the resistance of coil W3 is such that the coil W1 is insufficiently energized. On the closure of switch D, a circuit is completed for a low resistance holding coil W4 of the relay R3. The relay R1 is now fully energized and closes its contacts 13, 14 to start up the motor M. In the event of the failure of the supply or operation of the relay F or G or a break in the pilot lines 10, 17, relays R1 and R3 open and the motor is stopped. If the supply is restored or the fault is removed before the switch D has been opened, the motor does not restart as the coil W4 is short-circuiting the coil W3 and whilst the contacts' 19, 21 are open, is in series with the resistance E, so that relay R3 cannot reclose and the resistance of the pilot circuit (due to resistance E) is too high for the relay R1 to reclose. In these circumstances, the motor is restarted by opening switch D which allows relay R3 to close and then on reclosing switch D, the relay R1 closes as described above. In the event of a short-circuit between pilot lines 10, 17 or an earth fault on line 17, the coil W2 of relay R2 is short-circuited by the fault and the relay R2 opens its contacts 15, 16 causing relay R1 to open. The coil W4 of relay R3 is also short-circuited by the fault, so that the removal of the fault and the opening and reclosure of the switch D is necessary to re-start the motor.
Patent GB-719975-A (GB)
Title: Improvements in silencers for pulsating gaseous currents
Inventor: BURGESS LESLIE GURNEY
IPC: F01N1/08
Filed: 1952-08-27
Abstract: 719,975. Silencing gaseous currents. VAUXHALL MOTORS, Ltd. June 25, 1953 [Aug. 27, 1952], No. 21496/52. Class 7(2) [Also in Group XXII] A silencer for pulsating gaseous currents, e.g. an exhaust silencer for internal-combustion engines, pumps or compressors, comprises a tube with an elliptical cross-section formed from two semi-elliptical sheet-metal pressings 12, 14 fastened together, e.g. by spot-welding, each member 12, 14 having having attached thereto a U- shaped partition 24, 26 provided with apertures 40, 42 whereby the major part of the gases entering through the inlet 20 flows through a space 34 to the apertures 40, whence they flow reversely through the interior of the partitions 24, 26, to the space 38 connected to the outlet 22. A small portion of the gases flows directly from inlet to outlet through a space 44, Fig. 3, between the adjacent sides of the partitions 24, 26.
Patent GB-136906-A (GB)
Title: Improvements in and relating to Knife Securing Means for Cutter Heads for Planing and other like Tools.
Inventor: KRABER GEORGE LOGAN
IPC: B27C1/10
Filed: 1918-12-23
Abstract: 136,906. Kraber, G. L. Dec. 23, 1918. Planing; cutter heads. - In cutter heads for wood-planing machines, the cutters l are secured by independently-acting screws o and wedges m. The screws o are threaded into the cutter head a, and their heads engage in recesses in the cutters to secure them in place. The wedges m are positioned over the screws o and are recessed to accommodate the heads of these screws, and they are secured in position by screws t arranged similarly to the screws o. A planing-tool in which the cutter head is used comprises a frame h provided with a handle j, the cutter head a being mounted coaxially with a turbine operated by a fluid under the control of a valve k situated in the handle.
Patent GB-311992-A (GB)
Title: Improvements in and relating to electrically heated massage appliances
IPC: A61H15/02
Filed: 1928-07-25
Abstract: 311,992. Kramer, M. July 25, 1928. Heating appliances; massage. -A heated massage appliance comprises a hollow sphere 1<a> having perforations therein which retain balls 7 rolling on an inner sphere 5. The balls are heated by an incandescent electric lamp 8 within the sphere, which may be divided into two parts screwed together. The wires to the lamp pass up through the handle 3.
Patent GB-517187-A (GB)
Title: Improvements in and relating to means for holding electric lamps
IPC: H01R33/02
Filed: 1938-07-21
Abstract: 517,187. Lamp-holders. GROTE, E. R, and BRITISH ELECTRIC LAMPS, Ltd. July 21, 1938, No. 21728. [Class 38 (i)] A holder for tubular lamps with lateral unipolar contact caps 2 comprises a length 12 of moulded insulating material in which are embedded conductors 11 that are exposed at intervals in lamp sackets 13 formed in the moulding, bifurcated contacts being formed by the attachment of an L-shaped or D-shaped wire or plate as described in Specifications 431,332, [Group XI] and 517,186. The moulded length may have a terminal block 28 at one end or insulated conductors may be attached and moulded into the end, or plugs or sockets may be provided at the ends so that several lengths may be connected together to a screw ring 40, Fig. 11, and the other to a socket 41, these terminals being connected to similar terminals on an adjacent end by a screw sleeve 45 and a tube 42 enclosing telescopic pin contacts 43. Specifications 304,882, 336,418, [both in Class 38 (i)], 411,849, 411,957, 431,376, [all in Group XI] and 517,185 also are referred to.
Patent GB-1078785-A (GB)
Title: Traffic markers
Inventor: EVANS ERIC EDWARD
IPC: E01F9/012
Filed: 1965-05-22
Abstract: 1,078,785. Traffic markers. A. D. CROMPTON Ltd. April 20, 1966 [May 22, 1965], No. 21786/65. Heading E1G. A conical sleeve, for covering a road marker, has a reflecting and flourescent flexible base and a transparent cover secured thereto. The base may be screen printed with areas of fluorescent ink or the like and reflecting media, such as glass balls embedded therein before drying. The outer cover is glass clear plastic.
Patent GB-183057-A (GB)
Title: Improvements in means for cleaning the swifts and other cylinders of carding machines
IPC: D01G15/80
Filed: 1921-08-17
Abstract: 183,057. Varley, C. Aug. 17, 1920. Carding-engines.-To provide for the cleaning of the swift &c., the fancy roller is furnished with a number of bars c, d - - - having strong taper teeth, disposed at equal intervals around the roller. The teeth are so spaced that the interval between two adjacent teeth on one bar is covered by the teeth on the other bars, the space g between two successive teeth being equal to the space between two teeth on the swift &c. The bars are screwed in position between the ordinary clothing of the fancy either between or over the meeting edges of the foundation. The teeth are arranged at varying standard distances from the ends of the bars, so that by aligning the ends the correct setting of the teeth is obtained.