baber/WOPTO huggingface dataset:
Patent GB-675158-A (GB)
Title: Improvements in infra-red gas analyzers
IPC: G01N21/37
Filed: 1950-11-14
Abstract: 675,158. Infra-red gas analysis. PERKINELMER CORPORATION. Nov. 14, 1950 [Nov. 26, 1949], No. 27839/50. Class 40 (iii). In an infra-red gas analyser for the determination of one of a number of gases with overlapping infra-red absorption bands in which twin beams of radiation pass, one through the sample to the detector and the other through the sample and a cell containing the wanted gas to the detector, the apparatus is made responsive only to the wanted gas by adjustment of the quantity of radiation in one beam and by including partial pressures of the unwanted gases in the detector. The invention is described with reference to finding the concentration of CH 4  in a mixture of C 2 H 4  and C 2 H 6 . As shown, radiation from a source 11 passes through a chopping plate 39, a cell 13 containing the sample under test, a filter cell 17 and is then split into two beams in each of which is a screw adjusted shutter 22, 23. Each beam then passes to one of the detector chambers 24, 25 which contain the wanted gases at substantially atmospheric pressure and the unwanted gases at low partial pressures. In one of the beams a compensator cell 18 containing a non-absorbing gas such as nitrogen is inserted before the detector and in the other a sensitizer cell 20 containing the wanted gas. Detectors 24, 25 are connected by tubes 31 to the usual diaphragm condenser arrangement the output of which is amplified, rectified in a rectifier the action of which is synchronized with the chopper plate to a D.C. meter. The chopper amplifier and rectifier may be of the type described in U.S.A. Specification 2,442,298. The apparatus is prepared for the analysis by filling the detectors and the sensitizer with the wanted gas when the sample and compensator cell are filled with nitrogen. The trimmer 22 is then advanced into the beam and a curve of meter readings against trimmer position plotted. The nitrogen is then replaced by one of the gases in the sample and the process repeated. This is done with all the gases and a number of non-intersecting curves result. The partial pressures are then introduced into the detectors and the trimmer adjusted to the point where all the curves except that of the wanted gas intersect in a point (Fig. 4). The apparatus may then be used to determine the CH 4  content directly but the meter reading may be reduced to zero by the use of a third beam of radiation which is chopped and then fed to chamber 25 by-passing the rest of the apparatus.
Patent GB-616653-A (GB)
Title: Improvements in or relating to laminated driving belts
IPC: F16G5/16
Filed: 1946-09-17
Abstract: 616,653. Belt gearing. BRAMMER, H. Sept. 17, 1946, No. 27863. Addition to 562,910. [Class 80 (i)] A fastener for securing the links 1 of laminated belting is L-shaped with the end 4 of the base part 3 turned up, and has a head 5 on the shank 2 having a convex lower surface. The base may be formed with a flat surface engaging the belt and the ends 4 thereof may be riveted over as at 8. The head 5 of the fastener may be dished.
Patent GB-427172-A (GB)
Title: Bearing arrangement for rollers of conveyers
IPC: B65G39/09
Filed: 1933-10-10
Abstract: 427,172. Conveyers. ERIKSSON, K. V. A., 11, LinnÚvagen, Falun, Sweden. Oct. 10, 1933, No. 27880. Convention date, Oct. 10, 1932. [Class 78 (i)] [See also Group XXXIV] In a conveyer wherein one or more pulleys 1 are mounted on a central horizontal shaft 3 whilst one or more pulleys 15, 21, 31 are mounted on shafts at the ends of and inclined to the axis of the central shaft, the central ball or roller bearing of the pulley, or each of the pulleys, on the central shaft is held in position by sleeves 7, 8 on the shaft on each side of the boss of the pulley and by plates 10 secured to the opposite sides of the said boss. The side pulleys may rotate on a fixed spindle 19, the bearing being secured in the pulley boss, or the pulley may be secured to its shaft 23 which rotates in a bearing 25 in the support 46. The various shafts are hollow for supplying lubricant to the bearings.
Patent GB-302648-A (GB)
Title: Improvements in or relating to cases or containers, more particularly for the reception and transport of bananas
IPC: B65D3/16
Filed: 1928-09-28
Abstract: 302,648. Rodriguez de la Sierra, P. Dec. 19, 1927, [Convention date]. Packing bananas.-A case, particularly intended for the packing and transport of bananas, comprises a tubular body C formed from a sheet of cardboard which has been passed through rollers and given the tendency to take a cylindrical shape and two circular cardboard ends T; the bananas are introduced into the body C through the opening formed by moving the overlapping- edges apart, the edges of the body are then released and the ends T are inserted in the body and held therein by the pressure of the body and cords &c. B tied around the body and ends. The ends of the body may be provided with slots M for the reception of the binding cords, and ventilation holes are provided in the ends or the body or in both the ends and body.
Patent GB-224089-A (GB)
Title: Improvements in drawers of furniture
IPC: A47B88/12
Filed: 1923-11-07
Abstract: 224,089. Waring & Gillow, Ltd., and Hughes, C. E. Nov. 7, 1923. Drawers.-An inverted L-shaped bar 5 is attached to the chest of drawers. A flange 4 is attached to the side 3 of the drawer and is guided between the bar 5 and a runner piece attached to the carcase. The sides and bottom of the drawers are spaced away from the frame. The drawer bottom 9 may fit within grooves in one of a pair of slips attached to the drawer side, the other slip 12 forming the other flange, or a slip 2 may be used. Specification 7765/86, [Class 18, Boxes &c.], is referred to.
Patent GB-459562-A (GB)
Title: Improvements in shock struts for aircraft
IPC: B64C25/60
Filed: 1935-10-10
Abstract: 459,562. Shock absorbers. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, Illinois, U.S.A. Oct. 10, 1935, No. 27988. Convention date, Oct. 11, 1934. Addition to 456,897. [Class 108 (iii)] Relative angular movement between the two tubular telescoping members 10, 12 of the hydraulic shock-absorbing strut claimed in the parent Specification is prevented by a concealed splined connection, the inner member having a limited splined portion 72 on its outer surface for engaging splines 70 on the inner surface of the outer member, followed by a smooth portion 58 engaged by packing 52 and /or guiding means at the open end of the outer member. The lower end of the member 10 comprises an apertured piston 18, flow of liquid through which is controlled by a metering pin 40 on the member 12 and by a tubular housing 33 on the piston having a one-way valve 42 permitting free upward flow of liquid and bleed apertures 44 for restricting the downward flow. The upper end of the member 12 contains compressed air which, after the initial shock is absorbed resiliently supports the load of the aircraft. In order to limit extension of the strut, the splined portion 72 2 ends in a shoulder adapted to engage a packing- retaining ring 48. A landing-wheel stub-axle 14 4 is secured to lugs 60, 62 integral with a cap 34 closing the lower end of the member 12, and a plate 64, to which braking-members or a brake backing-plate may be secured, is splined on the axle. In modified constructions, (a.) one of the telescoping members is formed with concentric tubular casings between which the other member reciprocates, and (b) a splined sleeve is rigidly secured to the inner tubular member for engagement with the outer member.
Patent GB-228623-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/16
Filed: 1923-11-07
Abstract: 228,623. Igranic Electric Co., Ltd., Mackley, A. H., and Flight, W. S. Nov. 7, 1923. Thermionic amplifiers and detectors.-In sets having the valve filaments heated by alternating current, the input connection is established at the filament end through an adjustable tapping point in a resistance connected across the supply, and the supply current is taken from a transformer 4 having the primary windings 19, 20, or the secondary windings 21, 22, or both, divided into sections which are adapted to be connected in series or in parallel. Fig. 2 shows two plug members 25, 26 adapted to engage sockets a - - f and a<1> - - f<1> respectively and, according to their position, to connect the transformer windings in series or parallel. Flat portions F are provided on the plugs so that they may be inserted only in the two required positions. In the case where one of the windings is undivided, a single plug co-operating with a fixed flat face is used. Fig. 1 shows a receiving circuit employing high and low frequency amplifying valves, the filament end of the input of the former being through biassing battery 11 and potentiometer 10 and of the latter through biassing battery 18 and potentiometer 17. In order to remedy out of phase fluctuations between the grid and filament, a differential choke may be employed having two windings one in the grid lead and the other in the filament lead. Fig. 4 shows the construction of the potentiometer, which comprises windings 28, 29 carried by rotatable drums and connected in series, adjustment of the winding 28 serving as a fine adjustment. The Provisional Specification describes a strip adapted by means of a milled screw to be pressed down wedge fashion to lock the operating handles 34, 35.
Patent GB-1097178-A (GB)
Title: Improvements in or relating to mechanism for safety belts
IPC: B60R22/185
Filed: 1965-07-02
Abstract: 1,097,178. Safety harness. VOLVO A.B. July 2, 1965 [July 3, 1964], No. 28076/65. Heading A3V. [Also in Division E2] A vehicle safety harness includes at least one strap which passes from a spring reel through a locking device secured to the body of the vehicle or to a seat so that the reel is isolated from pulling forces exerted on the strap. As shown, Fig. 1, a strap 10 is mounted on spring reel 8 supported by links 5 for pivotal movement about horizontal and vertical pivots 6 and 3 respectively. From the reel 8 the strap 10 passes round a bar 14 forming part of a pivotable stirrup 12 urged by a spring 15 to move the bar 14 towards a fixed bar 11. To pull out the strap for use the passenger depresses a finger hold 16 of the stirrup. When pull on the strap stops, the spring 15 turns the stirrup counter-clockwise to the Fig. 2 position in which the bar 14 contacts the bar 11, the relative strengths of the springs 9 and 15 being such that the reel is barely able to wind in the strap 10, thus exerting little pressure on the passenger. A sudden pull on the strap would exert a moment on the stirrup 12 firmly clamping the bar 14 against the bar 11. In an alternative embodiment (Figs. 4 and 5, not shown) the locking device is operated semi-automatically by means of a spring 21 tending to retain the bar 14 at a distance from the bar 11. Pull on the strap 10 disengages a notch 20 in the spring from a projection 19 on the stirrup and the spring 15 moves the bar 14 against the bar 11 as described with reference to Fig. 1. Figs. 6 and 7 show alternative suspension of the bar 14 and Fig. 8 an embodiment in which the reel is mounted independently of the locking device. Figs. 11-13 illustrate arrangements of the reel and locking devices in vehicle.
Patent GB-847263-A (GB)
Title: Improvements relating to bag neck sealing machines
Inventor: RIDOUT EDGAR RAYMOND
IPC: B65B67/06
Filed: 1957-09-06
Abstract: 847,263. Closing filled bags. ADHESIVE TAPES Ltd. Dec. 2, 1958 [Sept. 6, 1957; Oct. 27, 1958], Nos. 28172/57 and 34360/58. Class 94(1). A machine for closing filled bags by applying strips of pressure sensitive adhesive tape round their necks and of the type in which the twisted neck is pushed into a notch in a moveable member carrying the tape with it and is moved with the member to an exit channel, has a knife which is cocked by the movement of the bag neck and is released as the latter is withdrawn to sever the tape. In one embodiment the member is a pivoted sector 5 biassed by a spring 14 against an adjustable stop 7 and having a series of different size notches 19, the desired one of which may be aligned with the bag neck entry channel 10 by the stop. A fixed member 6 wipes the tape about the neck as the member is moved towards the exit channel 12. As the neck enters the channel 12 it pushes back a knife-carrying lever 13 against action of a spring 17 and as it is pulled upwards into the enlarged portion of the channel, the lever is released permitting the knife 16 to sever the tape. In another embodiment, the member has only one notch and its own return motion pulls forward the knife carrying lever to sever the tape.
Patent GB-919098-A (GB)
Title: Improvements in the production of block-graft copolymers from polycondensates and polyolefines
IPC: C08L25/08
Filed: 1961-08-03
Abstract: A polycondensate containing nitrosated carbonamide groups is reacted with a polyolefin in a melt and optionally with an olefinically unsaturated monomer.  The polycondensate which may be any polylactam, diacid-diamine condensation product or a polyurea, polythiourea or polyurethane may be nitrosated with dinitrogen trioxide, nitrosyl chloride, nitrous acid or alkali nitrites in a solvent, on the raw polymer in a rotating drum or in a fluidized bed.  The reactants may be diluted with nitrogen.  The polyolefin may be polyethylene, polypropylene, polybutylene or polyisobutylene.  The reaction between the two polymers preferably takes place inside an extruder.  The further unsaturated monomer may be butyl acrylate.  The product may then be mixed with up to 50% by weight of linear polyamide or polyolefin in a conventional manner and the products used in the production of shaped articles by moulding.  Alternatively the polyolefin/nitrosated polycondensate reaction product alone may be used in the production of shaped articles by moulding.
Patent GB-1003855-A (GB)
Title: Process for the preparation of homo-and co-polymers of ethylene
IPC: C08F2/00
Filed: 1964-07-08
Abstract: Ethylene is homo- or copolymerized by heating ethylene, or a mixture of ethylene and one or more other copolymerizable monomers, to a temperature above 150 DEG  C. at a pressure above 500 atmospheres in the presence of an organic peroxide catalyst containing one or more saturated hydrocarbon ring systems, one of the carbon atoms of each ring system being bound to two groups -O-O-R, wherein R is a tertiary alkyl radical linked to the oxygen atom by a bond of a tertiary carbon atom.  A number of suitable catalysts are listed.  Suitable comonomers are esters or amides of acrylic or a -substituted acrylic acids and vinyl esters of carboxylic acids.  Polymerization may be effected in the presence of the usual chain transfer agents. Conventional additives may be incorporated during or after polymerization.  In the examples ethylene is homo-polymerized in bulk with 1,1-di-(tert.-butyl peroxy-) cyclohexane as catalyst alone or in the presence of either 2,6-di-(tert.-butyl) 4-methyl phenol or 4,41-thio bis-(3-methyl 6-tert.-butyl phenol) as antioxidants. The polymers are particularly suitable for producing films and other articles having a low opacity.
Patent GB-1088713-A (GB)
Title: Sewing machines comprising rotary hooks
IPC: D05B57/18
Filed: 1965-07-05
Abstract: 1,088,713. Sewing machines. NECCHI. S.p.A. July 5, 1965 [July 31, 1964], No. 28309/65. Heading D1G. The shaft carrying the body of a rotary hook is journalled in a bushing inclined at an angle to the needle of between 35 and 55 degrees and being adjustable both axially and angularly, the body at least partially enclosing a bobbin case restrained by a plate from rotating and held in the body by a gate. The hook body 23 is carried by a shaft 19 journalled in a sleeve 15 passing diametrically through a cylindrical member 13, sleeve 15 being axially adjustable in member 13, and the latter being angularly adjustable in the machine base. Shaft 19 is inclined to the horizontal at an angle of between 35 and 55 degrees and is driven by gearing 12, 21 from a bed shaft. Sleeve 15 passes through an aperture 22 in an inclined wall 10 which separates the hook body from the driving mechanisms for the hook and feed dog. The hook body is formed with a notch 25, one edge of which defines the loopseizing beak 26. The latter has a surface 27 which is parallel to the axis of the neddle 4 at the loop-seizing position. A plate 28, secured peripherally to the hook body to cover notch 25, is formed with an inturned lug 32 adapted to engage the needle to deflect the latter from beak 26. A race 34 in body 23 journals a peripheral flange 35 on the bobbin case 36. The cavity 37 for holding the bobbin 38 is eccentric to flange 35, which is notched at the region of maximum eccentricity to form shoulders 41 and (42), between which shoulders the bobbin case is formed with a bevelled surface (40) engagable by the needle. The exterior of the bobbin case adjacent shoulder 41 is formed with a conical surface 45 to assist the passage of the thread loop around the case. The exterior of the bobbin case between shoulder (42) and surface 45 is cylindrical and supports a thread-tensioning spring 47. A notch 48 in a radial extension 44 of the bobbin case between the shoulders 41 (42) is engaged by a fixed plate 49 to restrain the bobbin case from rotation. The open end of the bobbin cavity 37 is closed by a disc-like gate 51, which, as shown, is carried by a hinged plate 59 forming one side of a free arm 61. In a flat bed machine, disc 51 is carried by a plate slidable in the work-supporting surface of the bed.
Patent GB-519783-A (GB)
Title: Improvements in electrical temperature sensitive devices
IPC: G01K7/02
Filed: 1938-09-29
Abstract: 519,783. Two part couplings. FOSTER INSTRUMENT CO., Ltd., FOSTER, C. E., and FENNELL, C. A. F. Sept. 29, 1938, No. 28334. [Class 38 (i)] A coupling for a pyrometer or other heat-sensitive device, which may be in the form of a thermocouple or a resistance, has the contacts of different cross-sectional shapes or sizes to ensure correct coupling. The connection head 7 of moulded insulation has socket contacts 8, 9 of different shapes to receive the ends of the thermocouple &c. which are shaped or fitted with extensions shaped to correspond with the sockets. Clamping screws 12 are provided. Similar lateral sockets with clamping screws 12a receive the ends of the leads from the measuring instrument and have similar shapes to the sockets 8, 9.
Patent GB-1235024-A (GB)
Title: Rocket magazines for launching rockets from aircraft
IPC: F41F3/065
Filed: 1969-06-05
Abstract: 1,235,024. Moulding rocket magazines. ENGINS MATRA. 5 June, 1969 [21 Jan., 1969], No. 28403/69. Heading B5A. [Also in Divisions F3-F4] A rocket magazine (see Divisions F3-F4) is produced by moulding from an expanded material, e.g. a polyurethane based material. The mould 20 is provided with cores 22 for forming bores for the housing of rockets and reinforcements 16, 23 are also introduced into the mould before the moulding operation. The cylindrical reinforcement 16 is partly embedded in a suspension element carrying laminate 10, 15, the layer 15 being of a laminated glass fibre reinforced plastics material. By the use of suitably configured cores the inner surfaces of the bore closing portion of the magazine may be profiled (Figs. 7, 8, not shown). A suitable core for producing a peripheral weakening of the closing portions is disclosed (Fig. 6, not shown).
Patent GB-1077305-A (GB)
Title: Pneumatic resistance elements
Inventor: FUDIM EFIM VLADIMIROVICH
IPC: F15C1/02
Filed: 1964-07-09
Abstract: 1,077,305. Regulating fluid-flow. INSTITUTE AVTOMATIKI I TELEMEKHANIKI. July 9, 1964, No. 28437/64. Heading G3H. A pulsating pneumatic resistance is formed by a chamber 1, Fig. 1, connected to each of two lines 4, 5 through normally open and closed valves 2, 3, respectively, the valves being operated by a pulsed signal P t , which may comprise rectangular pulses having two discrete levels, fed to a line 12 to connect the chamber 1 alternately to lines 4, 5 and produce a given conductivity of the resistance; the lines 4, 5 are supplied with absolute pressure P 1  , P 2 , respectively. The fluid-flow will be at a frequency depending upon the signal frequency; if the latter is sufficiently high the gas flow will be substantially continuous. The signal may be of constant frequency. A number of pneumatic resistances are arranged in two groups (13, 14, Fig. 2), to form an algebraic adder, the outputs from one group (13) is taken to a common junction where there is a pressure of (P+) that is fed to an amplifier (16) with an output (p) which is fed through a feedback pneumaticresistance (15) to the common junction of the second group (14) the pressure (P-) of which is led into the amplifer (16). The resistances in the two groups have different conductivities, which latter varies with the signal frequency. A multiplying-dividing device is provided by two pairs of parallel-connected pneumaticresistances (17, 18 and 19, 20, Fig. 3, an amplifier (21) supplied with the output (P) of the resistances (17, 18) and a pressure (P 3 ). The output of the amplifier is transformed by a converter (22) into a frequency-modulated signal which determines the conductivity of resistances (18, 20); resistances (17, 19) are controlled by a fixed-frequency signal. The output is taken from the common output of resistances (19, 20). An aperiodic network may include a resistance element, the output of which is connected to a chamber with an initial pressure (Po) and a working pressure (P). Two aperiodic networks are used to perform time-discrete multiplying dividing, exponential and logarithmic operations. The resistances 25, 27, Fig. 5, are connected to chambers 26, 28, respectively, a pulse generator 29 controls the resistances over a contact 31 which is opened by an amplifier 30 when the pressure in chamber 26 falls to a valve P 2 . Valves 32, 33 admit pressures P 1 , P 3  to the chambers, the calculated result being the pressure in chamber 28 when that in chamber 26 is P 2 .
Patent GB-321519-A (GB)
Title: Improvements in and connected with reminder or remembrance devices
IPC: G09F7/10
Filed: 1928-10-04
Abstract: 321,519. Jack, A. Oct. 4, 1928. Indicator boards directly operated by hand for displaying variable information.-In a reminder device wherein pointers B may be turned about a wire pin D to indicate selected articles on a list A', accidental movement of the pointers to the reverse position is prevented by providing in the slots C through which the shafts of the pointers project depressions E into which the pointers fall in both the indicating and non-indicating positions.