Patent GB-191207799-A (GB)
Title: Improvements in Machines for Shaping Prepared Blanks in the Manufacture of Horse-shoes.
Inventor: FRY RICHARD JOHN
IPC: B21K15/02
Filed: 1912-03-30
Granted: 1913-04-30
Abstract: 7799. Fry, R. J. April 1, 1911, [Convention date]. Bending horseshoes; bending-formers.-In a machine for making horseshoes, the heated fullered blank is bent to staple form by forcing it between abutment pins by a former mounted on a movable slide which is loosely attached to its operating-eccentric so that the motion of the eccentric may continue while the slide is stopped during the flattening of the horseshoe. In the form shown in Figs. 2 and 3, the former 18, which may be shaped to suit hind as well as fore shoes, is fixed to a slide 4, which is bolted to a block 6 reciprocated by an eccentric 8 on a shaft 9, which is rotated by a foot-operated one-revolution clutch from the driving-shaft 10. The eccentric rod passes through a tapered hole 20 in the block and is provided with a semicylindrical washer 21, the block 6 being pressed forwards by a spring 24 abuting against an adjustable collar 26. The blank 36 is forced by the former between two pins 35, which are carried by a bar 32 vertically adjustable on pins 33. The shoes are flattened and straightened after bending by a hammer or press such as 17, which is operated by a lever 15 and a pair of eccentrics and links. 14. The hammer may slide vertically or at any angle thereto. In the form shown in Fig. 5, the eccentric rod is formed in two parts with a knuckle joint 27, and the block 6 is returned by a weight 28 or spring. The pins 35 of Fig. 2 may, in another form of machine shown in Fig. 7, be formed on levers 50, the rear ends of which move over a plate 53 having a curved edge to engage the pins 52 on the levers. The pins mav be adjustable and the levers detachable. The staple form produced by these operations mav be afterwards converted into complete horseshoe form by outside forming-dies. The Specification as open to inspection under Section 91 (3) (a) describes also an improved construction of outside forming-dies for completing the shape of the shoe, consisting of a pair of tools 37, Fig. 2 (Canc<d>.), carried on pivots 39 on bell - crank or other levers 40 mounted on pins 41 provided with projecting arms which are engaged by the block 6 so as to press the tools against the work. The levers 40 are adjustable by means of screws 49 &c., and the tools are connected to brackets 46 by loosely-mounted hooked bars 45 adjustable by means of nuts 48 &c. to vary the pressure and engaging eye bolts 44 or holes 47 to alter the position of the tools. The tools 37 may be detachable. It is also stated that the tools 37 may be dispensed with in the form in which the pins 35 are mounted on levers 50, the finishing operation being completed by these levers; the plate 53 is formed at its end with grooves 53<a> or is provided with a detachable plate 56, as shown in Fig. 13 (Canc<d>.), to give the desired motion to the levers. Further the underside of the hammer or the upper side of the former may be formed with a ledge, such as 19, on which the shoe is supported. The hammer may be formed as at 58, Fig. 10 (Canc<d>.), pivoted at 59 to lugs 60 and connected directly or by links to the lever 15. This subject-matter does not appear in the Specification as accepted.