Improvements in Nails, Pins, Screws, and similar Holding Devices.
Year: 1894

page_text: .
Date of Application, 11th Oct. 1894
Complete Specification Left, 9th Aug., 1895-Accepted, 11th Oct., 1895
PROVISIONAL SPECIFICATON.
Improvements in Nails, Pins, Screws, and similar Holding Devices.
"
I, GEORGE COCKBURN WARDEN, Junior, of No. 31 Nicholas, Lane, in the
City of London, Agent, ido hereby declare the nature of this invention to be as
follows:-
My invention relates to improvements in nails, pins, screws and similar holding
devices, and the object of it is to provide for the thing held down by the device
in question being detached therefrom without withdrawing the device from the
material into which it has been driven.
In carrying the invention into effect, that part of the device which is commonly
known as the head or top is attached to the pin or shank iby a screw thread, such
head or top being provided with a square or notch or sooket by means of which
and a suitable tool, it can be detached from, or attached to, the shank or pin.
The device constructed as above described is to be driven into the material with
its head or top on or attached to the pin or shank, or the said hoad or top may be
detached from the pin or shank and the latter driven in alone. The material to 'be
held down is theu passed over the upstanding pins or shanks and the heads or tops
screwed on to the latter.
Dated this 11th day of October 1894.
1
PHILLIPS & LEIGH,
Agents for the Applicant.
Improvements in Nails, Pins, Screws, and similar Holding Devices.
I, GEORGE COOK BURN WARDEN, Junior, late of No. 31 Nicholas Lane, in the
City of London, but now of No. 125 Palace Road, Tulse Hill, in the County of
Surrey, Agent, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The present invention relates to improvements in nails, pins, screws, and similar
holding devices, and the object of it is to provide for the thing held by the device
in question, being detached therefrom without withdrawing the device from the
material into which it has been driven.
In carrying the invention into effect, that part of the device which is commonly
known as the 'head or top, is attached to the pin or shank by a screw thread, euch
bead or top being provided with a square or notch or socket by means of which
(and a suitable tool, if such'be necessary) it can be detached from, or attached to,
the shank or pip.
Particular attention is directed to the fact that according to the present invention,
the 'head of a drive shank (as distinguished from a screw shank), is adapted to
receive the hammer blows necessary to drive the latter and that the driving force
of the blows reaches the shank through the head fast thereupon. It must also be
noted in respect of the object of the invention, that the latter is confined to devices
ED

page_text: mentioned something meitues
Cue netacuing of from and the repr
upon the last mentioned something, followed by a further holding of it down
thereupon.
Referring to the accompanying figures which are to be taken as part of this
Specification and read therewith:
"
Figure 1 is an elevation of the shank of a holding device made according to my
invention;
Figure 2 is a vertical section of the head of the same device.
Figure 3 is an elevation of the same device in its entirety the head being shown
in section:
Figure 4 is an elevation of the same device.
Figure 5 is a sectional elevation illustrating the act of driving such a device
through the lid of a wood box into the body of it, such driving forming one step
in the process of holding the said lid down.
Figure 6. is a sectional elevation illustrating the act of unscrewing the head
above mentioned from its shank, such unscrewing formning one step in the process
of opening the box in question.
Figures 7, 8 and 9 illustrate the embodiment of my invention; in a carpet nail
or.drugget pin Figure 7 being a plan of the head; Figure 8, an elevation of the
nail or pin in its entirety; and Figure 9, an elevation of the shank only.
Referring to. Figures 1 to 6, a is the shank of a holding device in the case
chosen for illustration, a nail is a screw thread cut about the upper portion of
it, to provide for the head of the device being held incorporate with the shauk.
c is an internally screw threaded ferrule adapted to engage with the screw thread b
on the shank a. This ferrule is tapered off towards its bottom edge to prevent
the presence of a shoulder where its side meets that of the shauk a. c is a notched
and countersunk head in one piece with the ferrule c..
d is the thing to be held down-in the case chosen for illustration, the lid of a
box, and e is the thing upon and to which it is to be held down, but in such a way
that it can be removed therefrom, réplaced and held down thereupon the latter
thing being in the case in question, the body of the box. The shank illustrated
being a drive shank, the device is driven as an ordinary nail is driven, that is by a
hammer. But the head el is first incorporated with the shank a by screwing the
ferrule c down upon the top of it. The use of a hammer is indicated by the
juxtaposition of the device and part of a hammer illustrated in Figure 5.
The thing held down, riz.:-the lid d, is detached from the box body e by
unscrewing the head c' and ferrule c froin off the shank a. This act is indicated'
in Figure 6. is the blade of an ordinary screw driver. When the heads c¹ and
ferrules e of all the holding devices have been unscrewed from their respective
shanks a, the lid d may be lifted off the body e and afterwards replaced upon it,
the holes h fitting over their respective screw threads b, both holes h and threads b
presenting themselves in proper position and coudition for receiving their respective
ferrules c and heads.c'.
Referring to Figures 7, 8 and 9, the ferrulere, above described is omitted. The
omission is not an essential feature of the invention when embodied in a carpet
nail. It may be either included or omitted as may be preferred. The head c is
shown as notched across the top, flat underneath instead of counter-sunk and screw-
threaded to engage the top of the shank a. The use of a carpet nail or drugget
pin made according to the present invention, is exactly the same as described with
reference to Figures 1 to 6, the carpet or drugget being the thing to be detachably
held down upon the Hoor.
The present invention includes any variation in the shape of the head c'. The
type of tool necessary for unscrewing the head depends, of course, upon the shape
of the latter..
The present invention further includes screw threaded as distinguished from
drive shanks. When the shanks are scrow threaded, the screw threaded portions b

page_text: are or may be, screwed to the reverse hand, but I prefer to notch them across the
tops to facilitate their insertion after the manner lock knob screws are notched.
Having now particularly desoribed and ascertained the nature of my said
invention, and in what manner the same is to be performed, I deolare that what
I claim is:
1. The hereinbefore described holding device, as set forth.
2. The combination of screw threaded shank notched across the top, and
detachable head or top, as set fortb..
Dated this 9th day of August 1895:
PHILLIPS & LEIGH,
No. 22 Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.