baber/WOPTO huggingface dataset:
Patent NO-852311-L (NO)
Title: Marine antibegroningsmalinger.
Inventor: MAKEPEACE ANDREW PETER
IPC: C09D5/16
Filed: 1985-06-07
Abstract: En marin antibegroningsmaling i stand til å bli glattere i bruk på et skipsskrog som beveger seg gjennom sjøvann omfatter en effektiv mengde av et marint biocid og, som filmdannende bindemiddel, en polymer inneholdende diorganotinndeler bundet til polymeren ved karboksylatbindinger. Bindemidlet er fortrinnsvis en kopolymer av enheter av et diorganotinnsalt av en olefinisk umettet karboksylsyre med formelen:. hvori Rer en olefinisk umettet gruppe, hver gruppe R er en enverdig organisk rest bundet til tinnatomet ved en karbon-tinnbinding og X betyr en elektronegativ gruppe bundet til tinnatomet ved et atom forskjellig fra karbon, sammen med enheter av minst en olefinisk umettet monomer.
Patent NO-864791-L (NO)
Inventor: POMMER ERNST-HEINRICH
IPC: A01N43/40
Filed: 1986-11-28
Abstract: 1. An agent for controlling algae, bacteria or fungi, except in the case of plants, containing a solid or liquid carrier and an O-substituted 3-oxypyridinium salt of the formula  see diagramm : EP0244509,P13,F3  where R**1 is dodecyl, tetradecyl, hexadecyl or a group C2 -C10 -alkyl-O-C5 -C18 -alkyl having a total of 10 to 20 carbon atoms, R**2 is methyl, allyl or the radical -(CH2 )1-2 -Ar or -(CH2 )2-6 OAr, Ar being phenyl which is unsubstituted or monosubstituted to trisubstituted by halogen, and X**- is Cl**- , Br**- or I**- or an anion which is one equivalent of a nonphytotoxic acid.
Patent NO-870494-L (NO)
Inventor: KITAO TADATOSHI
IPC: A61K31/495
Filed: 1987-02-09
Abstract: Antibacterial medicaments for fish contain 1-cyclopropyl-7-(1-piperazinyl)- 6-fluoro, 4-dihydro-4-4oxo-3- quinolinecarboxylic acid cpds. of formula (I) or their salts or hydrates; R1 = H, lower alkyl or lower hydroxyalkyl; R2 = H or lower alkyl. (I) are described in JA 71683/82 and 74667/83.
Patent NO-874139-L (NO)
Inventor: ANGERER ERWIN VON
IPC: C07F15/00
Filed: 1987-10-01
Abstract: 1. Claims for the contracting States BE, CH, DE, FR, GB, IT, LI, LU, NL, SE Cis-platinum complexes of the general formula   see diagramm : EP0262498,P18,F5   wherein R1 denotes hydrogen, a hydroxyl group or a C2 -C6 - alkanoyloxy group, R2 denotes hydrogen or a halogen atom, R3 denotes hydrogen or a C1 -C6 -alkyl group, R4 denotes a hydroxyl group or a C2 -C6 -alkanoyloxy group, R5 denotes hydrogen or a halogen atom and R6 denotes hydrogen or a halogen atom, Alk represents a C2 -C10 -alkylene chain, where 4 adjacent CH2 groups may furthermore be replaced by a 1,4-phenylene ring,   see diagramm : EP0262498,P18,F6   denotes the group   see diagramm : EP0262498,P18,F7     see diagramm : EP0262498,P18,F8   or   see diagramm : EP0262498,P19,F1   and R7 is a hydrogen atom, a C1 -C6 -alkyl group or a phenyl radical and X represents one equivalent of a physiologically tolerated anion. 1. Claims for the contracting States AT, ES, GR Process for the preparation of cis-platinum complexes of the general formula   see diagramm : EP0262498,P20,F1   wherein R1 denotes hydrogen, a hydroxyl group or a C2 -C6 -alkanoyloxy group, R2 denotes hydrogen or a halogen atom, R3 denotes hydrogen or a C1 -C6 -alkyl group, R4 denotes a hydroxyl group or a C2 -C6 -alkanoyloxy group, R5 denotes hydrogen or a halogen atom and R6 denotes hydrogen or a halogen atom, Alk represents a C2 -C10 -alkylene chain, where 4 adjacent CH2 groups may furthermore be replaced by a 1,4-phenylene ring,   see diagramm : EP0262498,P20,F2   denotes the group   see diagramm : EP0262498,P20,F3     see diagramm : EP0262498,P20,F4   or   see diagramm : EP0262498,P20,F5   and R7 is a hydrogen atom, a C1 -C6 -alkyl group or a phenyl radical and X represents one equivalent of a physiologically tolerated anion, characterised in that a tetrahaloplatinum (II) acid, a tetrahaloplatinum (II) complex salt having two monovalent cations or one divalent cation or a platinum(II) halide is reacted with a compound of the formula   see diagramm : EP0262498,P20,F6   or a salt of the compound II, wherein the radicals R1 , R2 , R3 , R4 , R5 and R6 and the groups Alk and A-B have the stated meanings, and, if required, the radical X or the radicals X in a resulting compound of the formula I is or are exchanged for other physiologically tolerated anions.
Patent NO-874260-L (NO)
Inventor: TEDESCO RAFFAELE
IPC: E04C5/07
Filed: 1987-10-13
Abstract: Non-woven mat consisting of one or more overlapping layers, each made of continuous, parallel, monodirectional filaments of an acrylic polymer and having a tenacity of at least 50 cN/tex, an elastic modulus of at least 1000 cN/tex and an ultimate elongation of less than 15 %. Use of this non-woven mat as reinforcement for organic and inorganic matrices, and manufactured articles thus obtained.
Patent NO-894751-L (NO)
Title: Oppvarmings- og ventilasjonsanlegg.
Inventor: VOELSTAD OVE CHARLES
IPC: F24C/
Filed: 1989-11-29
Abstract: Et romoppvarmings- og -ventilasjonsanlegg omfatter minst ett friskluftinntak (5) som er tilordnet minst én innendørs varmekilde (7). For å komme frem til et ytterst enkelt lyd-løst anlegg av denne art med ubetydelig kanalføring og ■ naturlig luftstrømning, er friskluftinntaket (5) via en kanal gjennom yttervegg (1) tilkoplet varmekilden via en underliggende luftfordelingsboks (6).uftfordelingsboksen (6) er beregnet til å plasseres i den nedre del, for eksempel umiddelbart over gulvnivå, i det rom (3) som skal varmes opp og ventileres. Anlegget er forsynt med en justerbar klaff-/ spjeldinnretning (8) for å kunne épne eller stenge for frisklufttilførselen til varmekilden henholdsvis muliggjøre variasjon av den tilført friskluftmengde til varmekilden.Denne klaff-/spjeldinnretning (8) som fortrinnsvis omfatter flere individuelt innstillbare (épningsbare/stengbare). spjeldseksjoner, er med fordel anordnet i luftfordelingsboksen (6) i umiddelbar tilknytning til varmekildens (7) luftinntak.
Patent NO-910536-L (NO)
Inventor: MOTTIER LINE
IPC: A61Q1/00
Filed: 1991-02-11
Abstract: In order to avoid problems of physicochemical stability of the cosmetic products containing sal fat, the fractional crystallisation of this fat is carried out using n-hexane so as to obtain an olein in the form of a clear liquid at room temperature. The olein obtained lends itself to the manufacture of cosmetic compositions in the form of emulsions or anhydrous products which conserve a smooth and glossy appearance while still having the qualities inherent in sal fat.
Patent NO-913050-L (NO)
Inventor: ERIKSSON STAFFAN
IPC: H02G3/12
Filed: 1991-08-06
Abstract: The invention relates to a conduit box (1) provided with fastening means for attaching to trunking sections (2) of the type having a front opening which comprises on both sides of the opening mutually facing flanges or parts of the trunking section (3). The conduit box comprises an essentially square box body, open at one end, the side walls (4) of which are provided with on the one hand holes (5) for insertion into the box of electrical cables and on the other hand, at the box opening, means arranged for fastening of insertion equipment. In order to facilitate the mounting in a trunking section the conduit box comprises two parts, a first part (7) intended for insertion into the trunking section which comprises the bottom of the box and the portion of the side walls in which the holes for insertion of electrical cables into the box are arranged and a second part (8), intended for arrangement in the front opening of the trunking section, which comprises the wall portions around the box opening with means for receiving insertion equipment. At the mounting the two parts (7, 8) are fixed against each other and the trunking section in such a way that the flanges (3) in the front opening of the trunking section are squeezed between support studs (9) unfoldable from the first part of the box and engaging behind the flanges (3) and support pins or support strips (10) arranged on the second part of the box and in contact with the outside of the flanges (3).
Patent NO-930823-L (NO)
Inventor: ASAI TOMOYUKI
IPC: C07D307/937
Filed: 1993-03-05
Abstract: A novel prostaglandin I2 derivative selected from a prostaglandin I2 having a halogen atom on the carbon atom corresponding to the 7-position of natural prostaglandin I2 and having a cycloalkylene group in the  alpha -chain, and its esters and salts.
Patent NO-932872-L (NO)
Inventor: SUM PHAIK-ENG
IPC: C07D261/08
Filed: 1993-08-12
Abstract: The invention provides compounds of formula I: <CHEM> wherein X, R and R<1> are defined in the specification. These compounds are useful as antibiotic agents.
Patent NO-934073-L (NO)
Inventor: SCHUBART GUNTER
IPC: B65D19/32
Filed: 1993-11-11
Abstract: A plastic pallet (10, 32) is disclosed for storing and transporting goods in a stable and distorsion-resistant manner in a modular system. The lower side of the upper board (12) is provided with ribs (14). Closed side walls (24) provided each with two recesses (26) for receiving the support forks of a fork stacker, and spacers (16) to which is soldered a thin bottom board (20), are formed in a single piece with the upper board (12). In the bottom pallet (32) for a pallet container are formed a collecting groove (40) in the middle of the surface (34) and a supporting strip (32) that runs around the whole outer circumferential area.
Patent NO-934705-L (NO)
Title: Fremgangsmåte ved fremstilling av steril melk ved hjelp av dynamisk mikrofiltrering
Inventor: DEGEN PETER JOHN
IPC: B01D61/14
Filed: 1993-12-20
Abstract: Det er beskrevet en fremgangsmåte for å behandle råmelk for å fremstille behandlet melk med et lavere bakterieinnhold enn råmelken. Melken homogeniseres og innen ca. 5 minutter fra homogeniseringen, utsettes den for dynamisk mikrofiltrering for å gl et filtrat som har et lavere bakterieinnhold enn den opprinnelige råmelken. Når strømningsmengden av melk gjennom mikroflIteret faller under et forutbestemt nivå, tas det dynamiske mikrofilteret ut av melkefiltrerlngsdrlft, spyles med vann og settes i melkefiltrerlngsdrift igjen og trinnene gjentas om nødvendig inntil membranet ikke kan gjenvinne en minimum flltrerlngskapasitet, ved hvilket tidspunkt membranet utsettes for kjemisk rensing for at membranet skal gjenvinne i det alt vesentlige sin opprinnelige filtreringskapasitet.
Patent NO-940374-L (NO)
Inventor: PEARLSTEIN LEONARD
IPC: B65D81/22
Filed: 1994-02-04
Abstract: A biodegradable paperboard container having an inner moisture resistant barrier coating for storing moist towels and a method for producing the container and moist towels.
Patent NO-951225-L (NO)
Title: Forseglet modulantenne for bruk i en borebrönn
Inventor: CHESNUTT DENNIS P
IPC: G01V3/30
Filed: 1995-03-30
Abstract: En forseglet, moduloppbygd brønnantenne (200) for måling av elektriske egenskaper l brønnborlngsflulder og brønnformasjoner. En antenne (200) Innbefatter et tynnvegget, kurveformet metallrør (202), som rommer, kveiler eller spoler av en lengde med ledende tråd (208). Ledningen 208 kan være Isolert med et Isolerende belegg, såvel som en fyller som ligger inne l røret (202). Røret (202) innbefatter et koplingsgap (204), for å muliggjøre kopling av elektromagnetisk energi gjennom røret til og fra den ledende tråd (208). Røret (202) har også en veggåpnlng (206), for feste av trådens (208) ender (208a-b) til en adapter-konnektor (210). Adapter-konnektoren (210) Innbefatter egnede organer for modulmesslg kopling til en elektrisk kabel, elektriske konnektorer eller annet elektrisk utstyr. Organene kan være anordnet for å sikre at slik forbindelse er motstandlg mot de høye trykk som ofte påtreffes nede i brønnen. I dette henseende kan røret også belegges med et tetningsmiddel-lag, for hermetisk å forsegle røret (202), koplingsgapet (204) og overgangen mellom adapter-konnektoren (210) og røret (202). Tetnlngsmlddel-laget kan innbefatte organer for å få til låsende inngrep med komplementært dimensjon- erte organer på et brønnverktøy.
Patent NO-952559-L (NO)
Inventor: CAPET MARC
IPC: A61P25/30
Filed: 1995-06-26
Abstract: PCT No. PCT/FR94/00008 Sec. 371 Date Jun. 28, 1995 Sec. 102(e) Date Jun. 28, 1995 PCT Filed Jan. 3, 1994 PCT Pub. No. WO94/15914 PCT Pub. Date Jul. 21, 1994Compounds of formula I   <IMAGE>   wherein the substituents are as defined herein, are disclosed as treatments for disorders linked to CCK and gastrin. Processes for preparing the compounds are also taught.
Patent NO-962075-L (NO)
Title: Amfifiliske derivater av piperazin
Inventor: HEATH TIMOTHY D
IPC: C07D/
Filed: 1996-05-21
Abstract: Nye, heterocykliske kationiske amfifile forbindelser blir fremstilt og som blir degradert in vivo. Liposomer blir produsert fra kationer som blir anvendt som bærere for levering av makromolekyler intracellulært og kan bli målsøkt til en spesifikk celletype.
Patent NO-962992-L (NO)
Inventor: ROSENSTOCK WINFRIED
IPC: A62C3/02
Filed: 1996-07-17
Abstract: PCT No. PCT/EP95/02964 Sec. 371 Date Sep. 27, 1996 Sec. 102(e) Date Sep. 27, 1996 PCT Filed Jul. 26, 1995 PCT Pub. No. WO96/04960 PCT Pub. Date Feb. 22, 1996What is disclosed is a device for extinguishing fires, and utilization of the device for stationary protection of specific objects, and for dust abatement during blasting operations, and a method for extinguishing forest or terrain fires with the extinguishing device. The extinguishing device comprises a container for receiving an extinguishing agent, and an explosive in or on this container, by means of detonation of which the extinguishing agent is atomized to form a mist and brought into the fire. In order to increase the flexibility and effectiveness in practical use, the container consists of a flexible hose which may be closed at both ends. The method of extinguishing forest or terrain fires with this device provides for the hose to be laid out in front of the fire front, filled with the extinguishing agent, and exploded by detonation of the explosive.
Patent NO-963056-L (NO)
Inventor: FOERSTER SIEGMAR
IPC: F16K1/226
Filed: 1996-07-23
Abstract: The stop valve has an eccentrically-mounted valve disc (5) and at least one sealing ring (1). The sealing ring, in the form of an O ring, is mounted in an annular groove (2) in the housing (3) and rests against the valve seating (6) within the pivot radius (4) of the valve disc. Between the groove and the valve seating in front of and after the sealing ring are tapered ring spaces (7, 8) filled with rubbery elastic filler (13). The groove is defined by a ring (10) held inside a groove (11). The sealing ring has a wire ring as reinforcement core (12).
Patent NO-963609-L (NO)
Inventor: HASELHORST ROLF
IPC: C08L83/05
Filed: 1996-08-29
Abstract: The crosslinkable compsn. opt. also contg. water or anorganic solvent and useful in coatings comprises: (a) a polysiloxane offering at least two olefinic or acetylenic unsatd. bonds; (b) a polyhydrogen-siloxane offering at least two directly Si-bonded H atoms; (c) a hydrosilylation catalyst (pref. a Pt cpd. or complex or elemental Pt on a carrier); (d) an inhibitor; (e) a P cpd. of formula PR3 where R = H, 1-18C alkyl, 6-30C aryl, 7-31C alkaryl or OR<1> (where R<1> = as for R excluding H) and each of the aryl gps. can be alkyl-substd.; and opt. also (f) further auxiliaries.
Patent NO-963695-L (NO)
Title: Bredbånds svitsjenettverk
Inventor: SMITH AVRIL JOY
IPC: H04Q3/00
Filed: 1996-09-04
Abstract: I et bredbåndsvitsjesystem for å svitsje asynkront overførte dataceller, styrer en dynamisk båndbreddekontrollenhet (DBC) tilførselen av dataceller til en inngangsport i systemet, idet datacellene leveres av et antall sendene sluttsystemer. DBC skaffer bufring for cellene fra hver kilde og kontrollerer utleveringen av dataceller til systemet i henhold til en nåværende cellerate (CR) tilordnet til cellene fra det respektive sluttsystem. Når et sluttsystem begynner å overføre dataceller detekterer DBC nærværet av innkommende celler og anmoder om båndbredde fra en forbindelsesadgangskontroll (CAC) som utgjør en del av systemet, samtidig som det skaffes en standardcellerate for sluttsystemet slik at overføringen kan fortsette inntil en passende båndbredde er allokert. DBC inneholder en buffer til bufring av celler i denne situasjon. Straks passende båndbredde er blitt allokert, mates en cellerateanvisningsinformasjon fra CAC tilbake til DBC og deretter til det sendende sluttsystem for å forhindre overføring av celler med en for høy rate for den tilgjengelige båndbredde. Oppfinnelsen angår både et apparat og en fremgangsmåte.
Patent NO-970346-L (NO)
Inventor: LYNCH TOM SADLER
IPC: A22C11/10
Filed: 1997-01-27
Abstract: A method and apparatus for crimping sausage links and ends are described. The apparatus consists of two spaced crimping devices (1), each crimping device having a pair of crimping arms (3, 4) with each of said crimping arms (3, 4) having a pair of inwardly directed crimping fingers (9, 10). The crimping fingers (9, 10) have inner surfaces (11, 15, 16, 17) which, in a first position, when the arms are separated, define a passageway through the device for receiving and supporting the filler casing. The apparatus includes fillers (5, 6) coupled to each of the pair of arms which are coupled to actuating mechanisms which act on both pairs of arms substantially simultaneously to urge the arms (3, 4) towards each other to close the passageway and crimp the filler casing and at the same time the passageways of the adjacent crimping devices are displaced radially inwards causing the filler casing between the arms to be shortened axially in length as it is being crimped.
Patent NO-972489-L (NO)
Inventor: FUCHS EBERHARD
IPC: C07D201/12
Filed: 1997-05-30
Abstract: Caprolactam is prepared by cleaving oligomers or polymers containing essentially the repeating unit -[-N(H)-(CH2)5-C(O)-]- in the presence of a catalyst at elevated temperatures by a process in which the cleavage is carried out in the liquid phase in the presence of a heterogeneous catalyst and of an organic solvent.
Patent NO-975377-L (NO)
Title: Kraftoverf÷ringsanordning for bor for opptagning av jordpr÷ver
Inventor: SAEDERBERG FOLKE
IPC: G01N1/08
Filed: 1997-11-24
Abstract: Kraftoverføringsanordning for å tillate en borenhet inngående i en utrustning for opptaging av bakkeprøver, spesielt fra voller, å utføre en svak slingrebevegelse under boringen for derved å redusere belastningene som oppstår når boret treffer stener og andre harde gjen- stander. For dette formål er boret forsynt med en leddet universalkobling (6) mellom motoren og borsylin- deren (7) , i kombinasjon med at borsylinderens nedre del tillates å bevege seg sideveis.
Patent NO-991349-L (NO)
Title: Innretning for lekkasjes°k
Inventor: INGHAM MICHAEL GEORGE
IPC: G01M3/28
Filed: 1999-03-19
Abstract: Fremgangsmåte for lekkasjedeteksjon i en rørledning, karakterisert ved de føl- gende trinn: å innføre i rørledningen (W) ved en åpning, en fra først løst tilpasset plugg (11) som har i det minste en utvidbar periferi (21), til- passet for oppblåsing ved hjelp av et fleksibelt rør (23), anordning langs lengden av det fleksible rør (23) en søkeranordning (31) for fjerndetektering av posisjonen for pluggen, å tillate pluggen (11) å bli drevet langs rørled- ningen ved en fluidtrykkforskjell, opp- blåsing av pluggen for i hovedsak å blokkere strømmen av væske, å verifisere trykket eller strømforholdene oppstrøms fra pluggen for å detektere en fluidlek- kasje, fJerndetektering av posisjonen for pluggen og relatering av denne til posisjonen av lekkasjen (X).
Patent NO-991384-L (NO)
Title: Substituerte heterocykler som anti-tumormidler
Inventor: LAVOIE EDMOND J
IPC: A61K31/473
Filed: 1999-03-22
Abstract: Den foreliggende oppfinnelse tilveiebringer forbindelsene fra formel (I) hvori Ri-R?, W, X, Y og Z har enhver av verdiene definert i beskrivelsen, og farmasøytisk akseptable salt derav, som er nyttige som anti-cancermidler. Også beskrevet er farmasøytiske sammensetninger som omfatter en eller flere forbindelser fra formel (I), metoder for fremstilling av forbindelsene fra formel (I) og intermediater nyttige for fremstilling av forbindelser fra formel (I).
Patent NO-995421-L (NO)
Title: Slurry hydrokarbonsyntese med fallrørsmatet produktfiltrering
Inventor: LEVINESS STEPHEN CLAUDE
IPC: C07C1/04
Filed: 1999-11-05
Abstract: Hydrokarbonvæskeprodukter filtreres og fjernes fra en tre-fase hydrokarbonsynteseslurry omfattende gassbobler og faste katalysatorpartikler i en hydrokarbonvæske ved å sirkulere slurrien gjennom et gassavlastende fallrør ned-senket slurrien til en filtreringssone utenfor, eller inne i reaktoren, og deretter tilbake til slurrien i reaktoren. Gassavlastningen øker tettheten til slurrien som ledes gjennom filtreringsoverflaten under høye strømnings-betin-gelser, for å redusere akkumulering av faste partikler på filteret som filterkake. Sirkulasjon gjennom filtrerings-sonen skjer ved tyngdekraft og hydrostatisk på grunn av forskjeller i slurrytetthet. Fallrøret kan også være et gass- og faststoffreduserende fallrør.
Patent SE-0002220-L (SE)
Inventor: ROEING JAN PETER
IPC: F24D/
Filed: 2000-06-15
Abstract: The heating device (3) comprises an extremely thin and narrow strip, in which the width of the conductors is 50-150 times wider than their thickness, the conductors being formed by a metal layer with a thickness of 0.3 mm or less, encapsulated in an insulating plastic layer. The conductors are placed side by side so that they do not generate a magnetic field. The strip is folded over itself at several points (5) to ensure an even heat distribution over the floor, as well as to ensure that it is thin, flat and able to support the floor covering without the need for intermediate spacer or load bearing parts.
Patent SE-0002774-L (SE)
Inventor: PETTERSON TORBJOERN
IPC: A01J/
Filed: 2000-07-26
Abstract: Teat cup liner (3)for teat cup shell (2) has head portion (3b) having aperture (9) centered about longitudinal axis (z) where in cross section the head has a first side curved part (10) which extends to the opposite side curved part (11) and includes the aperture where the radius of the second side curved part is greater than that of the first.  Independent claims are included for: (A) a teat cup formed of a teat cup shell and liner,  and (B) a milking member which includes a milking claw with at lest two teat cups connected such that the first side part of each teat cup faces its longitudinal center line when the member is attached to an animal.
Patent SE-0100676-L (SE)
Inventor: HAEGERMARCK ANDERS
IPC: A47L9/00
Filed: 2001-02-28
Abstract: A carrier, such as an autonomous cleaning apparatus, has a self-adjusting wheel assembly that can move vertically, thereby enabling the carrier to readily pass over a surface. The wheel assembly may include microswitch, which activates a control mechanism for the carrier when a wheel assembly is in a predetermined position along its path of vertical movement. Rollers can be located at the bottom of the carrier to function in cooperation with the wheel assemblies so as to facilitate the ability of the carrier to pass over obstacles. This ability may be enhanced by constructing the bottom of the front portion of the carrier so that it is slanted or inclined upwardly in a direction outward from the bottom of the carrier. A driving wheel may be rotatably attached to a wheel support, and which may also support a power source and a transmission.
Patent SE-0100837-L (SE)
Inventor: NYSTROEM STEN
IPC: A01G23/091
Filed: 2001-03-09
Abstract: A single grip harvester head (14) has a chain saw (23) that is mounted to be svingable by a motor (25) into an inoperative position in a shield (26) and swingable out of the inoperative position for cutting a gripped and lifted tree trunk. A guard (30) is mounted to be swingable such that its mounting is adjacent the free end of the saw bar (24) when the saw (23) is in its inoperative position. The axes of swinging of the saw and the guard are parallel and the guard is swingale between an operative position in which it is transverse to the saw bar and a retracted inoperative position. The guard is used during a cutting operation with the tree trunk suspended but it is retracted during felling.