Abstract: A stretching apparatus for stretching a pelt on a pelt board, wherein the pelt has a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose end, a rear end and a pair of front leg cavities. The pelt board defines a top end for accommodating and fixating the nose end of the pelt, a circumferential wall for facing the inwardly oriented leather side of the pelt and a base end located opposite the top end. The stretching apparatus comprises a holding device for holding the base end of the pelt board, and a stretching device having a pair of stretching members. Each of the stretching members are adapted in order to be inserted into a respective front leg cavity of the pelt and the stretching device is movable in a direction towards the holding device for stretching the pelt.

Abstract: A stretching apparatus for stretching a pelt on a pelt board and a method of stretching a pelt on a pelt board, where the pelt has a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose end and a rear end. The pelt board defines a top end for accommodating and fixating the nose end of the pelt, a circumferential wall for facing the inwardly oriented leather side of the pelt and a base end located opposite the top end. The method comprises the steps of providing a stretching apparatus comprising a holding device, a fastening device comprising a gripping mechanism, and a drive mechanism connected between the holding device and the fastening device. The method further comprises holding the base end of a pelt board by the holding device so that the pelt board extends outwardly along a longitudinal direction from the holding device.

Abstract: A stretching apparatus for stretching a pelt on a pelt board, wherein the pelt has a substantially tubular shape defining an inwardly oriented leather side, an outwardly oriented fur side, a nose end, a rear end and a pair of front leg cavities. The pelt board defines a top end for accommodating and fixating the nose end of the pelt, a circumferential wall for facing the inwardly oriented leather side of the pelt and a base end located opposite the top end. The stretching apparatus comprises a holding device for holding the base end of the pelt board, and a stretching device having a pair of stretching members. Each of the stretching members are adapted in order to be inserted into a respective front leg cavity of the pelt and the stretching device is movable in a direction towards the holding device for stretching the pelt.

Abstract: An apparatus for processing the skin side of a tubular fur, including a mandrel on which the tubular fur can be drawn from a first part of the mandrel towards a second part of the mandrel, one or more scraper units, each scraping unit having at least one scraper means configured for scraping the skin side when the fur is arranged on the mandrel, and a cover including a compartment and an outlet, where the cover encloses a part of the mandrel and at least one of the scraper means in the compartment during operation, where the outlet is arranged in a bottom part of the cover, and where the cover has walls with inner surfaces configured for leading material removed from the skin side by means of the scraper means towards the bottom part.

Abstract: An apparatus for processing the skin side of a tubular fur, including a mandrel on which the tubular fur can be drawn from a first part of the mandrel towards a second part of the mandrel so that the skin side of the fur faces outwards and the fur side of the fur faces inwards towards the mandrel, one or more scraper units, each scraping unit having at least one scraper means configured for scraping the skin side when the fur is arranged on the mandrel, and a cover including a compartment and an outlet, where the cover is configured for enclosing at least a part of the mandrel and at least one of the scraper means in the compartment during operation, where the outlet is arranged in a bottom part of the cover, the bottom part being arranged below the at least one scraper means, and where the cover has walls with inner surfaces configured for leading material removed from the skin side by means of one or more of the one or more scraper means towards the bottom part.

Abstract: An apparatus having a tapering mandrel with a first part that is thinner than a second part of the mandrel, on which mandrel the tubular fur can be drawn from the first part of the mandrel towards the second part of the mandrel. The apparatus further includes at least a first scraper unit having at least one scraper roller which, during operation and in contact with the skin side, is arranged to rotate so that scraping elements on the scraper roller scrape the skin side of the fur. The mandrel is arranged to be driven at different speeds, and the apparatus is arranged to switch between the different speeds when the fur on the mandrel is in different predefined positions.

Abstract: An apparatus includes a tapering mandrel on which a tubular fur can be drawn. The apparatus further includes at least two scraper units having one or more scraper rollers which, during operation and in contact with the skin side of the fur, is arranged to rotate so that scraping elements on the scraper rollers scrape the skin side of the fur on opposite sides of the mandrel. The scraper units include a pressure arrangement to apply to the at least one scraper roller a contact pressure against the skin side, and a damper arrangement for damping the scraper unit movement away from the mandrel. Scraper units may be included on opposing mandrel sides, wherein each unit includes two rollers to act on the skin side with a friction force towards a second part of the mandrel; at least one of the rollers includes one or more V-shaped scraper elements.

Abstract: The invention relates to an apparatus (1) for processing the skin side of a tubular fur (2), which apparatus comprises: a tapering mandrel (3) with a first part (3a) that is thinner than a second part (3b) of the mandrel, on which mandrel (3) the tubular fur (2) can be drawn from the first part of the mandrel (3 a) towards the second part of the mandrel (3b) so that the skin side of the fur (2) faces outwards and the fur side of the fur faces inwards towards the mandrel (3), at least a first scraper unit (4) and a second scraper unit (5), each scraper unit comprising at least a first scraper roller (4a, 5 a) which, during operation and in contact with the skin side, is arranged to rotate so that scraping elements (6) on the scraper roller (4a, 5 a) scrape the skin side of the fur (2) on opposite sides of the mandrel (3).

Abstract: A machining device for a robot used for the carding of leather comprises a tool holder head (11, 11a) for receiving a driven rotary tool (24), a movable assembly (12, 8, 9, 20) adjustable in the effective direction of the tool and provided with a rigid arm (3) carrying the head (11, 11a). The device includes strain-gauge sensors (10) for measuring the force exerted by the tool (24), and the support (2) carrying the movable assembly and connected to the end (1) of the robot arm (3). The device also includes a control circuit (17) which receives the signals from the strain-gauge sensors (1) and controls the movement of the movable assembly (12, 8, 9, 20) in order to make the pressure exerted by the tool on the workpiece subject to a nominal value.

Abstract: A mechanized power assisted apparatus for flattening and stretching wet tanned hides on a smooth flat horizontal bed of a vacuum hide drier preparatory to drying in the course of leather manufacture. The apparatus includes a support holding a squeegee-type slicker element for positioning closely adjacent to a hide-carrying drier bed. The slicker element has a smooth straight edge which is rotatable in a plane parallel to the surface of the plate. The slicker support is associated with a power travel drive system for moving the support in a plane parallel to and spaced from the surface of the hide-carrying bed and over a hide supported on that bed. A power thrust system is associated with the slicker element for moving the element into and out of contact with the wet hide and for exerting force on the slicker element. Spaced apart controls are provided for actuating the power assist systems for manipulating the slicker element over the surface of a hide in simulation of manual hide application.

Abstract: An apparatus for fleshing fur pelts with two conical poles, on each of which the pelt is positioned with the fur side facing inwardly. A ring is disposed concentrically of one pole. The ring is clamped to the pelt and moved axially of the pole by a piston driven carriage, which mounts the ring, to tension the pelt. The pole is rotated to allow a rotary scraper to flesh the pelt.

Abstract: An apparatus for removing fat and flesh from the flesh side of a fur comprises a mandrel with a tapered free end portion. The fur to be treated is arranged on the free end portion of the mandrel with its flesh side turned out and in a substantially stretched condition. The mandrel preferably has a polygonal, such as a rectangular, cross-section. The mandrel and the fur arranged thereon is moved in its longitudinal direction through a scraping device comprising oppositely arranged pairs of rollers having scraping edges which combined define a contour substantially complementary to the cross-sectional contour of the mandrel. Thus, the remnants of fat and flesh may be removed from the fur during a single advance stroke of movement of the mandrel in relation to the scraping device, and the treated fur may be stripped from the mandrel during a return stroke thereof.

Abstract: A skin holding device on an apparatus for letting out skins is driven by drive devices to follow the treatment and feed tools acting on the skin, so that the skin zone received in the skin holding device is moved synchronously with the skin zone gripped by the treatment and feed tools. In this way a skin, when being let out, can neither be distorted nor can it deviate from its initial angular alignment.

Abstract: An apparatus for letting out skins comprises behind the parting sword a needle bar movable up and down which is movable in addition parallel to the drawoff direction of the skin through a drive mechanism. Together with a supporting plate movable up and down, the needle bar acts on the skin section already let out so that it is held taut and flat.

Abstract: A mechanized power assisted apparatus for flattening and stretching wet tanned hides on a smooth flat plate preparatory to drying in the course of leather manufacture. The apparatus comprises support means holding a squeegee-type slicker element for positioning closely adjacent to a hide-carrying plate. The slicker element has a smooth straight edge which is rotatable in a plane parallel to the surface of the plate. The slicker support means is associated with a powered travel means for moving the support means in a plane parallel to and spaced from the surface of the hide-carrying plate and over a hide supported on that plate. Powered thrust means are associated with the slicker element for moving the element into and out of contact with the wet hide and for exerting force on the slicker element. Spaced apart control means are provided for actuating the power assist means for manipulating the slicker element over the surface of a hide in simulation of manual hide application.

Abstract: Improved apparatus is disclosed for increasing the output of a machine for removing fat from the inside of an animal pelt, such as a mink pelt. In such machines, pelts are mounted inside out on rotatable elongate mandrils, and a cutting head resembling a router trims the fat from the pelt. The improvement includes a control assembly attached to the cutting head for pivotal movement thereof to control the depth of cut. The control assembly has a flexible extension which permits the cutting head to move freely longitudinally along the mandril. The control assembly also has a toggle joint and a lever operably coupled thereto to reduce the effort of pivoting the cutting head. The depth of cut is therefore controlled with reduced effort using a lever in a fixed location on the machine. A reciprocating element controls the longitudinal position of the cutting head. The reciprocating element is operated by foot controlled drive means including a motor driven reversing clutch.