Abstract: An excavator (1) includes an excavator main body (7), an apron (2) for the receipt of excavated material and a conveyor (3), the apron being located at or in proximity to the front of the main body, the conveyor extending from the apron to the rear of the main body. In use, the conveyor moves excavated material from the front to the rear of the main body, the excavator further includes an arm (11) having an attachment (5) for excavating material and moving the excavating material towards the apron (2). The excavator has a support associated with the front of the main body, the support being movable from a first position in which the support is in resilient contact with the ground to a second position in which there is substantially no contact between the support and the ground. The support includes one or both of the apron and conveyor.

Abstract: An excavator (1) includes an excavator main body (7), an apron (2) for the receipt of excavated material and a conveyor (3), the apron being located at or in proximity to the front of the main body, the conveyor extending from the apron to the rear of the main body. In use, the conveyor moves excavated material from the front to the rear of the main body, the excavator further includes an arm (11) having an attachment (5) for excavating material and moving the excavating material towards the apron (2). The excavator has a support associated with the front of the main body, the support being movable from a first position in which the support is in resilient contact with the ground to a second position in which there is substantially no contact between the support and the ground. The support includes one or both of the apron and conveyor.

Abstract: An excavator attachment (1) for an excavator, comprising (i) a bucket portion (3) for receiving excavated material or a scoop portion for collecting excavated material and (ii) a cutter device (4) capable of cutting and excavating rock, wherein the cutter device comprises a rotary cutter (5) of elongate configuration having a proximal end (6) associated with the bucket portion (or the scoop portion) and a distal end (7) remote from the bucket portion (or the scoop portion) and is so arranged that, in use, the orientation of the elongate rotary cutter relative to the bucket portion (or scoop portion) is fixed.

Abstract: The present invention discloses novel isoquinoline carboxamide derivatives which are HIV protease inhibitors or prodrugs thereof, a process for their manufacture, pharmaceutical compositions and the use of such compounds in medicine. In particular, the compounds are hydroxyethylamine tripeptide mimetics which act as inhibitors of the HIV aspartyl protease, an essential enzyme in the replicative life cycle of HIV. Consequently, the compounds of this invention may be advantageously used in the treatment of HIV infection, either alone or in combination with other inhibitors of HIV viral replication or with pharmacoenhancers such as cytochrome P450 inhibitors.

Abstract: Pyrimidine nucleoside derivatives of formula ##STR1## wherein R.sup.1 represents aryl, R.sup.2 represents lower alkyl, R.sup.3 represents an acyl group derived from an amino acid and R.sup.4 represents hydrogen or fluorine and the asterisk denotes that the configuration at the carbon atom indicated thereby is (S) or (R),are disclosed. These compounds, as well as their salts, are useful as antiviral agents.

Abstract: This invention is directed to the novel pyrimidine derivative 1-?5-?2(S)-(2,4-dichloro-5-methoxyphenoxy) propionamido!-2,5-dideoxy-2-fluoro-.beta.-D-arabinofuranosly!-5-ethyluraci l and its use as an antiviral agent, as well as to intermediates useful in the synthesis of this compound.

Abstract: Compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and --N(R.sup.7)--CH(R.sup.8)(R.sup.9) are as claimed herein or their pharmaceutically acceptable acid addition salts inhibit proteases of viral origin and can be used as medicaments for the treatment of viral infections. They can be manufactured according to generally known procedures.

Abstract: Plant growth regulating and herbicidal compositions, and methods for their use, containing as the active ingredient 6-amino-o-toluic acid or agriculturally acceptable salts thereof.